Bump

Play notification sounds from the page ignoring Notification API support

.github/dependabot.yml

@@ -0,0 +1,26 @@
+version: 2
+updates:
+  - package-ecosystem: "npm"
+    directory: "/web"
+    schedule:
+      interval: "weekly"
+    cooldown:
+      default-days: 7
+
+  - package-ecosystem: "gomod"
+    directory: "/"
+    schedule:
+      interval: "weekly"
+    cooldown:
+      default-days: 7
+
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: "weekly"
+    cooldown:
+      default-days: 7
+    groups:
+      all:
+        patterns:
+          - "*"

.github/workflows/build.yaml

@@ -1,19 +1,22 @@
 name: build
-on: [ push, pull_request ]
+on:
+  push:
+    branches: [ main ]
+  pull_request:
 jobs:
   build:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout code
-        uses: actions/checkout@v3
+        uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
       - name: Install Go
-        uses: actions/setup-go@v4
+        uses: actions/setup-go@4a3601121dd01d1626a1e23e37211e3254c1c06c # v6.4.0
         with:
-          go-version: '1.24.x'
+          go-version: '1.26.x'
       - name: Install node
-        uses: actions/setup-node@v3
+        uses: actions/setup-node@48b55a011bda9f5d6aeb4c2d9c7362e8dae4041e # v6.4.0
         with:
-          node-version: '20'
+          node-version: '24'
           cache: 'npm'
           cache-dependency-path: './web/package-lock.json'
       - name: Install dependencies

.github/workflows/docs.yaml

@@ -9,10 +9,10 @@ jobs:
     steps:
       -
         name: Checkout ntfy code
-        uses: actions/checkout@v3
+        uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
       -
         name: Checkout docs pages code
-        uses: actions/checkout@v3
+        uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
         with:
           repository: binwiederhier/ntfy-docs.github.io
           path: build/ntfy-docs.github.io

.github/workflows/release.yaml

@@ -6,21 +6,38 @@ on:
 jobs:
   release:
     runs-on: ubuntu-latest
+    services:
+      postgres:
+        image: postgres:17
+        env:
+          POSTGRES_USER: ntfy
+          POSTGRES_PASSWORD: ntfy
+          POSTGRES_DB: ntfy_test
+        ports:
+          - 5432:5432
+        options: >-
+          --health-cmd "pg_isready -U ntfy"
+          --health-interval 10s
+          --health-timeout 5s
+          --health-retries 5
+    env:
+      NTFY_TEST_DATABASE_URL: "postgres://ntfy:ntfy@localhost:5432/ntfy_test?sslmode=disable"
+      NTFY_TEST_S3_URL: ${{ secrets.NTFY_TEST_S3_URL }}
     steps:
       - name: Checkout code
-        uses: actions/checkout@v3
+        uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
       - name: Install Go
-        uses: actions/setup-go@v4
+        uses: actions/setup-go@4a3601121dd01d1626a1e23e37211e3254c1c06c # v6.4.0
         with:
-          go-version: '1.24.x'
+          go-version: '1.26.x'
       - name: Install node
-        uses: actions/setup-node@v3
+        uses: actions/setup-node@48b55a011bda9f5d6aeb4c2d9c7362e8dae4041e # v6.4.0
         with:
-          node-version: '20'
+          node-version: '24'
           cache: 'npm'
           cache-dependency-path: './web/package-lock.json'
       - name: Docker login
-        uses: docker/login-action@v2
+        uses: docker/login-action@650006c6eb7dba73a995cc03b0b2d7f5ca915bee # v4.2.0
         with:
           username: ${{ github.repository_owner }}
           password: ${{ secrets.DOCKER_HUB_TOKEN }}

.github/workflows/test.yaml

@@ -1,19 +1,39 @@
 name: test
-on: [ push, pull_request ]
+on:
+  push:
+    branches: [ main ]
+  pull_request:
 jobs:
   test:
     runs-on: ubuntu-latest
+    services:
+      postgres:
+        image: postgres:17
+        env:
+          POSTGRES_USER: ntfy
+          POSTGRES_PASSWORD: ntfy
+          POSTGRES_DB: ntfy_test
+        ports:
+          - 5432:5432
+        options: >-
+          --health-cmd "pg_isready -U ntfy"
+          --health-interval 10s
+          --health-timeout 5s
+          --health-retries 5
+    env:
+      NTFY_TEST_DATABASE_URL: "postgres://ntfy:ntfy@localhost:5432/ntfy_test?sslmode=disable"
+      NTFY_TEST_S3_URL: ${{ secrets.NTFY_TEST_S3_URL }}
     steps:
       - name: Checkout code
-        uses: actions/checkout@v3
+        uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
       - name: Install Go
-        uses: actions/setup-go@v4
+        uses: actions/setup-go@4a3601121dd01d1626a1e23e37211e3254c1c06c # v6.4.0
         with:
-          go-version: '1.24.x'
+          go-version: '1.26.x'
       - name: Install node
-        uses: actions/setup-node@v3
+        uses: actions/setup-node@48b55a011bda9f5d6aeb4c2d9c7362e8dae4041e # v6.4.0
         with:
-          node-version: '20'
+          node-version: '24'
           cache: 'npm'
           cache-dependency-path: './web/package-lock.json'
       - name: Install dependencies
@@ -23,8 +43,6 @@ jobs:
       - name: Build web app (required for tests)
         run: make web
       - name: Run tests, formatting, vetting and linting
-        run: make check
+        run: make checkv
       - name: Run coverage
         run: make coverage
-      - name: Upload coverage to codecov.io
-        run: make coverage-upload

.gitignore

@@ -7,6 +7,9 @@ build/
 server/docs/
 server/site/
 tools/fbsend/fbsend
+tools/pgimport/pgimport
+tools/loadtest/loadtest
+tools/s3cli/s3cli
 playground/
 secrets/
 *.iml

Dockerfile-build

@@ -1,8 +1,8 @@
-FROM golang:1.24-bullseye as builder
+FROM golang:1.25-bookworm AS builder
 
 ARG VERSION=dev
 ARG COMMIT=unknown
-ARG NODE_MAJOR=18
+ARG NODE_MAJOR=24
 
 RUN apt-get update && apt-get install -y \
        build-essential ca-certificates curl gnupg \
@@ -21,14 +21,14 @@ ADD Makefile .
 
 # docs
 ADD ./requirements.txt .
-RUN make docs-deps
+RUN --mount=type=cache,target=/root/.cache/pip make docs-deps
 ADD ./mkdocs.yml .
 ADD ./docs ./docs
 RUN make docs-build
 
 # web
 ADD ./web/package.json ./web/package-lock.json ./web/
-RUN make web-deps
+RUN --mount=type=cache,target=/root/.npm make web-deps
 ADD ./web ./web
 RUN make web-build
 
@@ -40,7 +40,15 @@ ADD ./log ./log
 ADD ./server ./server
 ADD ./user ./user
 ADD ./util ./util
-RUN make VERSION=$VERSION COMMIT=$COMMIT cli-linux-server
+ADD ./payments ./payments
+ADD ./db ./db
+ADD ./message ./message
+ADD ./model ./model
+ADD ./webpush ./webpush
+ADD ./attachment ./attachment
+ADD ./mail ./mail
+ADD ./s3 ./s3
+RUN --mount=type=cache,target=/go/pkg/mod --mount=type=cache,target=/root/.cache/go-build make VERSION=$VERSION COMMIT=$COMMIT cli-linux-server
 
 FROM alpine
 

Makefile

@@ -1,10 +1,13 @@
 MAKEFLAGS := --jobs=1
+NPM := npm
 PYTHON := python3
 PIP := pip3
 VERSION := $(shell git describe --tag)
 COMMIT := $(shell git rev-parse --short HEAD)
 
-.PHONY:
+# FORCE is an always-out-of-date target with no recipe; listing it as a prerequisite
+# forces that target's recipe to run every time (the classic "FORCE target" idiom).
+FORCE:
 
 help:
 	@echo "Typical commands (more see below):"
@@ -42,6 +45,7 @@ help:
 	@echo "  make web-deps                   - Install web app dependencies (npm install the universe)"
 	@echo "  make web-build                  - Actually build the web app"
 	@echo "  make web-lint                   - Run eslint on the web app"
+	@echo "  make web-test                   - Run vitest unit tests for the web app"
 	@echo "  make web-fmt                    - Run prettier on the web app"
 	@echo "  make web-fmt-check              - Run prettier on the web app, but don't change anything"
 	@echo
@@ -51,7 +55,9 @@ help:
 	@echo "  make docs-build                 - Actually build the documentation"
 	@echo
 	@echo "Test/check:"
-	@echo "  make test                       - Run tests"
+	@echo "  make test                       - Run all tests (Go + web)"
+	@echo "  make cli-test                   - Run Go tests only"
+	@echo "  make web-test                   - Run web app tests only"
 	@echo "  make race                       - Run tests with -race flag"
 	@echo "  make coverage                   - Run tests and show coverage"
 	@echo "  make coverage-html              - Run tests and show coverage (as HTML)"
@@ -81,7 +87,7 @@ help:
 
 # Building everything
 
-clean: .PHONY
+clean: FORCE
 	rm -rf dist build server/docs server/site
 
 build: web docs cli
@@ -118,7 +124,7 @@ build-deps-ubuntu:
 
 docs: docs-deps docs-build
 
-docs-venv: .PHONY
+docs-venv: FORCE
 	$(PYTHON) -m venv ./venv
 
 docs-build: docs-venv
@@ -127,7 +133,7 @@ docs-build: docs-venv
 docs-deps: docs-venv
 	(. venv/bin/activate && $(PIP) install -r requirements.txt)
 
-docs-deps-update: .PHONY
+docs-deps-update: FORCE
 	(. venv/bin/activate && $(PIP) install -r requirements.txt --upgrade)
 
 
@@ -137,7 +143,7 @@ web: web-deps web-build
 
 web-build:
 	cd web \
-		&& npm run build \
+		&& $(NPM) run build \
 		&& mv build/index.html build/app.html \
 		&& rm -rf ../server/site \
 		&& mv build ../server/site \
@@ -145,20 +151,25 @@ web-build:
 			../server/site/config.js
 
 web-deps:
-	cd web && npm install
+	cd web && $(NPM) ci
+	# Use "npm ci" so that we don't change the package lock file
 	# If this fails for .svg files, optimize them with svgo
 
 web-deps-update:
-	cd web && npm update
+	cd web && $(NPM) update --before="$(shell date -d '7 days ago' +%Y-%m-%d)"
+	cd web && $(NPM) install
 
 web-fmt:
-	cd web && npm run format
+	cd web && $(NPM) run format
 
 web-fmt-check:
-	cd web && npm run format:check
+	cd web && $(NPM) run format:check
 
 web-lint:
-	cd web && npm run lint
+	cd web && $(NPM) run lint
+
+web-test:
+	cd web && $(NPM) run test
 
 # Main server/client build
 
@@ -245,6 +256,7 @@ cli-deps-gcc-windows:
 
 cli-deps-update:
 	go get -u
+	go mod tidy
 	go install honnef.co/go/tools/cmd/staticcheck@latest
 	go install golang.org/x/lint/golint@latest
 	go install github.com/goreleaser/goreleaser/v2@latest
@@ -263,23 +275,29 @@ cli-build-results:
 
 check: test web-fmt-check fmt-check vet web-lint lint staticcheck
 
-test: .PHONY
-	go test $(shell go list ./... | grep -vE 'ntfy/(test|examples|tools)')
+checkv: testv web-fmt-check fmt-check vet web-lint lint staticcheck
 
-testv: .PHONY
-	go test -v $(shell go list ./... | grep -vE 'ntfy/(test|examples|tools)')
+test: cli-test web-test
 
-race: .PHONY
-	go test -v -race $(shell go list ./... | grep -vE 'ntfy/(test|examples|tools)')
+testv: cli-testv web-test
+
+cli-test: FORCE
+	go test $(shell go list -f '{{if .TestGoFiles}}{{.ImportPath}}{{end}}' ./... | grep -vE 'ntfy/v2/(test|examples|tools)')
+
+cli-testv: FORCE
+	go test -v $(shell go list -f '{{if .TestGoFiles}}{{.ImportPath}}{{end}}' ./... | grep -vE 'ntfy/v2/(test|examples|tools)')
+
+race: FORCE
+	go test -v -race $(shell go list -f '{{if .TestGoFiles}}{{.ImportPath}}{{end}}' ./... | grep -vE 'ntfy/v2/(test|examples|tools)')
 
 coverage:
 	mkdir -p build/coverage
-	go test -v -race -coverprofile=build/coverage/coverage.txt -covermode=atomic $(shell go list ./... | grep -vE 'ntfy/(test|examples|tools)')
+	go test -v -race -coverprofile=build/coverage/coverage.txt -covermode=atomic $(shell go list -f '{{if .TestGoFiles}}{{.ImportPath}}{{end}}' ./... | grep -vE 'ntfy/v2/(test|examples|tools|web)')
 	go tool cover -func build/coverage/coverage.txt
 
 coverage-html:
 	mkdir -p build/coverage
-	go test -race -coverprofile=build/coverage/coverage.txt -covermode=atomic $(shell go list ./... | grep -vE 'ntfy/(test|examples|tools)')
+	go test -race -coverprofile=build/coverage/coverage.txt -covermode=atomic $(shell go list -f '{{if .TestGoFiles}}{{.ImportPath}}{{end}}' ./... | grep -vE 'ntfy/v2/(test|examples|tools)')
 	go tool cover -html build/coverage/coverage.txt
 
 coverage-upload:
@@ -301,7 +319,7 @@ lint:
 	which golint || go install golang.org/x/lint/golint@latest
 	go list ./... | grep -v /vendor/ | xargs -L1 golint -set_exit_status
 
-staticcheck: .PHONY
+staticcheck: FORCE
 	rm -rf build/staticcheck
 	which staticcheck || go install honnef.co/go/tools/cmd/staticcheck@latest
 	mkdir -p build/staticcheck

README.md

@@ -34,6 +34,12 @@ You can access the free version of ntfy at **[ntfy.sh](https://ntfy.sh)**. There
 available on [Google Play](https://play.google.com/store/apps/details?id=io.heckel.ntfy) or [F-Droid](https://f-droid.org/en/packages/io.heckel.ntfy/),
 as well as an [open source iOS app](https://github.com/binwiederhier/ntfy-ios) available on the [App Store](https://apps.apple.com/us/app/ntfy/id1625396347).
 
+<p>
+  <a href="https://play.google.com/store/apps/details?id=io.heckel.ntfy"><img height="50" src="docs/static/img/badge-googleplay.png"></a>
+  <a href="https://f-droid.org/en/packages/io.heckel.ntfy/"><img width="170" src="docs/static/img/badge-fdroid.svg"></a>
+  <a href="https://apps.apple.com/us/app/ntfy/id1625396347"><img height="50" src="docs/static/img/badge-appstore.png"></a>
+</p>
+
 <p>
   <img src=".github/images/screenshot-curl.png" height="180">
   <img src=".github/images/screenshot-web-detail.png" height="180">

attachment/backend.go

@@ -0,0 +1,23 @@
+package attachment
+
+import (
+	"io"
+	"time"
+)
+
+// backendObject represents an object stored in a backend.
+type object struct {
+	ID           string
+	Size         int64
+	LastModified time.Time
+}
+
+// backend is a minimal I/O interface for storing and retrieving attachment files.
+// It has no knowledge of size tracking, limiting, or ID validation.
+type backend interface {
+	Put(id string, reader io.Reader, untrustedLength int64) error
+	Get(id string) (io.ReadCloser, int64, error)
+	List() ([]object, error)
+	Delete(ids ...string) error
+	DeleteIncomplete(cutoff time.Time) error
+}

attachment/backend_file.go

@@ -0,0 +1,94 @@
+package attachment
+
+import (
+	"fmt"
+	"io"
+	"os"
+	"path/filepath"
+	"time"
+)
+
+type fileBackend struct {
+	dir string
+}
+
+var _ backend = (*fileBackend)(nil)
+
+func newFileBackend(dir string) (*fileBackend, error) {
+	if err := os.MkdirAll(dir, 0700); err != nil {
+		return nil, err
+	}
+	return &fileBackend{dir: dir}, nil
+}
+
+func (b *fileBackend) Put(id string, reader io.Reader, untrustedLength int64) error {
+	if untrustedLength > 0 {
+		reader = io.LimitReader(reader, untrustedLength)
+	}
+	file := filepath.Join(b.dir, id)
+	f, err := os.OpenFile(file, os.O_CREATE|os.O_WRONLY|os.O_TRUNC, 0600)
+	if err != nil {
+		return err
+	}
+	defer f.Close()
+	n, err := io.Copy(f, reader)
+	if err != nil {
+		os.Remove(file)
+		return err
+	} else if untrustedLength > 0 && n != untrustedLength {
+		os.Remove(file)
+		return fmt.Errorf("content length mismatch: claimed %d, got %d", untrustedLength, n)
+	}
+	if err := f.Close(); err != nil {
+		os.Remove(file)
+		return err
+	}
+	return nil
+}
+
+func (b *fileBackend) List() ([]object, error) {
+	entries, err := os.ReadDir(b.dir)
+	if err != nil {
+		return nil, err
+	}
+	objects := make([]object, 0, len(entries))
+	for _, e := range entries {
+		info, err := e.Info()
+		if err != nil {
+			return nil, err
+		}
+		objects = append(objects, object{
+			ID:           e.Name(),
+			Size:         info.Size(),
+			LastModified: info.ModTime(),
+		})
+	}
+	return objects, nil
+}
+
+func (b *fileBackend) Get(id string) (io.ReadCloser, int64, error) {
+	file := filepath.Join(b.dir, id)
+	stat, err := os.Stat(file)
+	if err != nil {
+		return nil, 0, err
+	}
+	f, err := os.Open(file)
+	if err != nil {
+		return nil, 0, err
+	}
+	return f, stat.Size(), nil
+}
+
+func (b *fileBackend) Delete(ids ...string) error {
+	for _, id := range ids {
+		file := filepath.Join(b.dir, id)
+		if err := os.Remove(file); err != nil && !os.IsNotExist(err) {
+			return err
+		}
+	}
+	return nil
+}
+
+func (b *fileBackend) DeleteIncomplete(_ time.Time) error {
+	return nil
+}

attachment/backend_s3.go

@@ -0,0 +1,51 @@
+package attachment
+
+import (
+	"context"
+	"io"
+	"time"
+
+	"heckel.io/ntfy/v2/s3"
+)
+
+type s3Backend struct {
+	client *s3.Client
+}
+
+var _ backend = (*s3Backend)(nil)
+
+func newS3Backend(client *s3.Client) *s3Backend {
+	return &s3Backend{client: client}
+}
+
+func (b *s3Backend) Put(id string, reader io.Reader, untrustedLength int64) error {
+	return b.client.PutObject(context.Background(), id, reader, untrustedLength)
+}
+
+func (b *s3Backend) Get(id string) (io.ReadCloser, int64, error) {
+	return b.client.GetObject(context.Background(), id)
+}
+
+func (b *s3Backend) List() ([]object, error) {
+	objects, err := b.client.ListObjectsV2(context.Background())
+	if err != nil {
+		return nil, err
+	}
+	result := make([]object, 0, len(objects))
+	for _, obj := range objects {
+		result = append(result, object{
+			ID:           obj.Key,
+			Size:         obj.Size,
+			LastModified: obj.LastModified,
+		})
+	}
+	return result, nil
+}
+
+func (b *s3Backend) Delete(ids ...string) error {
+	return b.client.DeleteObjects(context.Background(), ids)
+}
+
+func (b *s3Backend) DeleteIncomplete(cutoff time.Time) error {
+	return b.client.AbortIncompleteUploads(context.Background(), cutoff)
+}

attachment/store.go

@@ -0,0 +1,246 @@
+package attachment
+
+import (
+	"errors"
+	"fmt"
+	"io"
+	"sync"
+	"time"
+
+	"heckel.io/ntfy/v2/log"
+	"heckel.io/ntfy/v2/model"
+	"heckel.io/ntfy/v2/s3"
+	"heckel.io/ntfy/v2/util"
+)
+
+const (
+	tagStore     = "attachment_store"
+	syncInterval = 15 * time.Minute // How often to run the background sync loop
+)
+
+var errInvalidFileID = errors.New("invalid file ID")
+
+// Store manages attachment storage with shared logic for size tracking, limiting,
+// ID validation, and background sync to reconcile storage with the database.
+type Store struct {
+	backend              backend
+	limit                int64                            // Defined limit of the store in bytes
+	size                 int64                            // Current size of the store in bytes
+	sizes                map[string]int64                 // File ID -> size, for subtracting on Remove
+	attachmentsWithSizes func() (map[string]int64, error) // Returns file ID -> size for active attachments
+	orphanGracePeriod    time.Duration                    // Don't delete orphaned objects younger than this
+	closeChan            chan struct{}
+	doneChan             chan struct{}
+	mu                   sync.RWMutex // Protects size and sizes
+}
+
+// NewFileStore creates a new file-system backed attachment cache
+func NewFileStore(dir string, totalSizeLimit int64, orphanGracePeriod time.Duration, attachmentsWithSizes func() (map[string]int64, error)) (*Store, error) {
+	b, err := newFileBackend(dir)
+	if err != nil {
+		return nil, err
+	}
+	return newStore(b, totalSizeLimit, orphanGracePeriod, attachmentsWithSizes)
+}
+
+// NewS3Store creates a new S3-backed attachment cache. The s3URL must be in the format:
+//
+//	s3://ACCESS_KEY:SECRET_KEY@BUCKET[/PREFIX]?region=REGION[&endpoint=ENDPOINT][&disable_http2=true]
+func NewS3Store(s3URL string, totalSizeLimit int64, orphanGracePeriod time.Duration, attachmentsWithSizes func() (map[string]int64, error)) (*Store, error) {
+	config, err := s3.ParseURL(s3URL)
+	if err != nil {
+		return nil, err
+	}
+	return newStore(newS3Backend(s3.New(config)), totalSizeLimit, orphanGracePeriod, attachmentsWithSizes)
+}
+
+func newStore(backend backend, totalSizeLimit int64, orphanGracePeriod time.Duration, attachmentsWithSizes func() (map[string]int64, error)) (*Store, error) {
+	c := &Store{
+		backend:              backend,
+		limit:                totalSizeLimit,
+		sizes:                make(map[string]int64),
+		attachmentsWithSizes: attachmentsWithSizes,
+		orphanGracePeriod:    orphanGracePeriod,
+		closeChan:            make(chan struct{}),
+		doneChan:             make(chan struct{}),
+	}
+	// Hydrate sizes from the database immediately so that Size()/Remaining()/Remove()
+	// are accurate from the start, without waiting for the first sync() call.
+	if attachmentsWithSizes != nil {
+		attachments, err := attachmentsWithSizes()
+		if err != nil {
+			return nil, fmt.Errorf("attachment store: failed to load existing attachments: %w", err)
+		}
+		for id, size := range attachments {
+			c.sizes[id] = size
+			c.size += size
+		}
+		go c.syncLoop()
+	} else {
+		close(c.doneChan)
+	}
+	return c, nil
+}
+
+// Write stores an attachment file. The id is validated, and the write is subject to
+// the total size limit and any additional limiters. The untrustedLength is a hint
+// from the client's Content-Length header; backends may use it to optimize uploads (e.g.
+// streaming directly to S3 without buffering).
+func (c *Store) Write(id string, reader io.Reader, untrustedLength int64, limiters ...util.Limiter) (int64, error) {
+	if !model.ValidMessageID(id) {
+		return 0, errInvalidFileID
+	}
+	log.Tag(tagStore).Field("message_id", id).Debug("Writing attachment")
+	limiters = append(limiters, util.NewFixedLimiter(c.Remaining()))
+	countingReader := util.NewCountingReader(reader)
+	limitReader := util.NewLimitReader(countingReader, limiters...)
+	if err := c.backend.Put(id, limitReader, untrustedLength); err != nil {
+		c.backend.Delete(id) //nolint:errcheck
+		return 0, err
+	}
+	size := countingReader.Total()
+	c.mu.Lock()
+	c.size += size
+	c.sizes[id] = size
+	c.mu.Unlock()
+	return size, nil
+}
+
+// Read retrieves an attachment file by ID
+func (c *Store) Read(id string) (io.ReadCloser, int64, error) {
+	if !model.ValidMessageID(id) {
+		return nil, 0, errInvalidFileID
+	}
+	return c.backend.Get(id)
+}
+
+// Remove deletes attachment files by ID and subtracts their known sizes from
+// the total. Sizes for objects not tracked (e.g. written before this process
+// started and before the first sync) are corrected by the next sync() call.
+func (c *Store) Remove(ids ...string) error {
+	for _, id := range ids {
+		if !model.ValidMessageID(id) {
+			return errInvalidFileID
+		}
+	}
+	// Remove from backend
+	for _, id := range ids {
+		log.Tag(tagStore).Field("message_id", id).Debug("Removing attachment")
+	}
+	if err := c.backend.Delete(ids...); err != nil {
+		return err
+	}
+	// Update total cache size
+	c.mu.Lock()
+	for _, id := range ids {
+		if size, ok := c.sizes[id]; ok {
+			c.size -= size
+			delete(c.sizes, id)
+		}
+	}
+	if c.size < 0 {
+		c.size = 0
+	}
+	c.mu.Unlock()
+	return nil
+}
+
+// Sync triggers an immediate reconciliation of storage with the database.
+func (c *Store) Sync() error {
+	return c.sync()
+}
+
+// sync reconciles the backend storage with the database. It lists all objects,
+// deletes orphans (not in the valid ID set and older than the grace period), and
+// recomputes the total size from the existing attachments in the database.
+func (c *Store) sync() error {
+	if c.attachmentsWithSizes == nil {
+		return nil
+	}
+	attachmentsWithSizes, err := c.attachmentsWithSizes()
+	if err != nil {
+		return fmt.Errorf("attachment sync: failed to get existing attachments: %w", err)
+	}
+	remoteObjects, err := c.backend.List()
+	if err != nil {
+		return fmt.Errorf("attachment sync: failed to list objects: %w", err)
+	}
+	// Calculate total cache size and collect orphaned attachments, excluding objects younger
+	// than the grace period to account for races, and skipping objects with invalid IDs.
+	cutoff := time.Now().Add(-c.orphanGracePeriod)
+	var orphanIDs []string
+	var count, totalSize int64
+	sizes := make(map[string]int64, len(remoteObjects))
+	for _, obj := range remoteObjects {
+		if !model.ValidMessageID(obj.ID) {
+			continue
+		}
+		if _, ok := attachmentsWithSizes[obj.ID]; !ok && obj.LastModified.Before(cutoff) {
+			orphanIDs = append(orphanIDs, obj.ID)
+		} else {
+			count++
+			totalSize += attachmentsWithSizes[obj.ID]
+			sizes[obj.ID] = attachmentsWithSizes[obj.ID]
+		}
+	}
+	log.Tag(tagStore).Debug("Attachment store updated: %d attachment(s), %s", count, util.FormatSizeHuman(totalSize))
+	c.mu.Lock()
+	c.size = totalSize
+	c.sizes = sizes
+	c.mu.Unlock()
+	// Delete orphaned attachments
+	if len(orphanIDs) > 0 {
+		log.Tag(tagStore).Debug("Deleting %d orphaned attachment(s)", len(orphanIDs))
+		if err := c.backend.Delete(orphanIDs...); err != nil {
+			return fmt.Errorf("attachment sync: failed to delete orphaned objects: %w", err)
+		}
+	}
+	// Clean up incomplete uploads (S3 only)
+	if err := c.backend.DeleteIncomplete(cutoff); err != nil {
+		log.Tag(tagStore).Err(err).Warn("Failed to abort incomplete uploads from attachment cache")
+	}
+	return nil
+}
+
+// Size returns the current total size of all attachments
+func (c *Store) Size() int64 {
+	c.mu.RLock()
+	defer c.mu.RUnlock()
+	return c.size
+}
+
+// Remaining returns the remaining capacity for attachments
+func (c *Store) Remaining() int64 {
+	c.mu.RLock()
+	defer c.mu.RUnlock()
+	remaining := c.limit - c.size
+	if remaining < 0 {
+		return 0
+	}
+	return remaining
+}
+
+// Close stops the background sync goroutine and waits for it to finish
+func (c *Store) Close() {
+	close(c.closeChan)
+	<-c.doneChan
+}
+
+func (c *Store) syncLoop() {
+	defer close(c.doneChan)
+	if err := c.sync(); err != nil {
+		log.Tag(tagStore).Err(err).Warn("Attachment sync failed")
+	}
+	ticker := time.NewTicker(syncInterval)
+	defer ticker.Stop()
+	for {
+		select {
+		case <-ticker.C:
+			if err := c.sync(); err != nil {
+				log.Tag(tagStore).Err(err).Warn("Attachment sync failed")
+			}
+		case <-c.closeChan:
+			return
+		}
+	}
+}

attachment/store_file_test.go

@@ -0,0 +1,17 @@
+package attachment
+
+import (
+	"testing"
+	"time"
+
+	"github.com/stretchr/testify/require"
+)
+
+func newTestFileStore(t *testing.T, totalSizeLimit int64) (dir string, cache *Store) {
+	t.Helper()
+	dir = t.TempDir()
+	cache, err := NewFileStore(dir, totalSizeLimit, time.Hour, nil)
+	require.Nil(t, err)
+	t.Cleanup(func() { cache.Close() })
+	return dir, cache
+}

attachment/store_s3_test.go

@@ -0,0 +1,120 @@
+package attachment
+
+import (
+	"context"
+	"io"
+	"os"
+	"strings"
+	"sync"
+	"testing"
+	"time"
+
+	"github.com/stretchr/testify/require"
+	"heckel.io/ntfy/v2/s3"
+)
+
+func TestS3Store_WriteWithPrefix(t *testing.T) {
+	s3URL := os.Getenv("NTFY_TEST_S3_URL")
+	if s3URL == "" {
+		t.Skip("NTFY_TEST_S3_URL not set")
+	}
+	cfg, err := s3.ParseURL(s3URL)
+	require.Nil(t, err)
+	cfg.Prefix = "test-prefix"
+	client := s3.New(cfg)
+	deleteAllObjects(t, client)
+	backend := newS3Backend(client)
+	cache, err := newStore(backend, 10*1024, time.Hour, nil)
+	require.Nil(t, err)
+	t.Cleanup(func() {
+		deleteAllObjects(t, client)
+		cache.Close()
+	})
+
+	size, err := cache.Write("abcdefghijkl", strings.NewReader("test"), 0)
+	require.Nil(t, err)
+	require.Equal(t, int64(4), size)
+
+	reader, _, err := cache.Read("abcdefghijkl")
+	require.Nil(t, err)
+	data, err := io.ReadAll(reader)
+	reader.Close()
+	require.Nil(t, err)
+	require.Equal(t, "test", string(data))
+}
+
+// --- Helpers ---
+
+func newTestRealS3Store(t *testing.T, totalSizeLimit int64) (*Store, *modTimeOverrideBackend) {
+	t.Helper()
+	s3URL := os.Getenv("NTFY_TEST_S3_URL")
+	if s3URL == "" {
+		t.Skip("NTFY_TEST_S3_URL not set")
+	}
+	cfg, err := s3.ParseURL(s3URL)
+	require.Nil(t, err)
+	if cfg.Prefix != "" {
+		cfg.Prefix = cfg.Prefix + "/testpkg-attachment"
+	} else {
+		cfg.Prefix = "testpkg-attachment"
+	}
+	client := s3.New(cfg)
+	inner := newS3Backend(client)
+	wrapper := &modTimeOverrideBackend{backend: inner, modTimes: make(map[string]time.Time)}
+	deleteAllObjects(t, client)
+	store, err := newStore(wrapper, totalSizeLimit, time.Hour, nil)
+	require.Nil(t, err)
+	t.Cleanup(func() {
+		deleteAllObjects(t, client)
+		store.Close()
+	})
+	return store, wrapper
+}
+
+func deleteAllObjects(t *testing.T, client *s3.Client) {
+	t.Helper()
+	for i := 0; i < 20; i++ {
+		objects, err := client.ListObjectsV2(context.Background())
+		require.Nil(t, err)
+		if len(objects) == 0 {
+			return
+		}
+		keys := make([]string, len(objects))
+		for j, obj := range objects {
+			keys[j] = obj.Key
+		}
+		require.Nil(t, client.DeleteObjects(context.Background(), keys))
+		time.Sleep(200 * time.Millisecond)
+	}
+	t.Fatal("timed out waiting for bucket to be empty")
+}
+
+// modTimeOverrideBackend wraps a backend and allows overriding LastModified times returned by List().
+// This is used in tests to simulate old objects on backends (like real S3) where
+// LastModified cannot be set directly.
+type modTimeOverrideBackend struct {
+	backend
+	mu       sync.Mutex
+	modTimes map[string]time.Time // object ID -> override time
+}
+
+func (b *modTimeOverrideBackend) List() ([]object, error) {
+	objects, err := b.backend.List()
+	if err != nil {
+		return nil, err
+	}
+	b.mu.Lock()
+	defer b.mu.Unlock()
+	for i, obj := range objects {
+		if t, ok := b.modTimes[obj.ID]; ok {
+			objects[i].LastModified = t
+		}
+	}
+	return objects, nil
+}
+
+func (b *modTimeOverrideBackend) setModTime(id string, t time.Time) {
+	b.mu.Lock()
+	b.modTimes[id] = t
+	b.mu.Unlock()
+}

attachment/store_test.go

@@ -0,0 +1,352 @@
+package attachment
+
+import (
+	"bytes"
+	"fmt"
+	"io"
+	"os"
+	"path/filepath"
+	"strings"
+	"testing"
+	"time"
+
+	"github.com/stretchr/testify/require"
+	"heckel.io/ntfy/v2/util"
+)
+
+const testSizeLimit = 10 * 1024
+
+func TestStore_WriteReadRemove(t *testing.T) {
+	forEachBackend(t, testSizeLimit, func(t *testing.T, s *Store, _ func(string)) {
+		// Write
+		size, err := s.Write("abcdefghijkl", strings.NewReader("hello world"), 0)
+		require.Nil(t, err)
+		require.Equal(t, int64(11), size)
+		require.Equal(t, int64(11), s.Size())
+
+		// Read back
+		reader, readSize, err := s.Read("abcdefghijkl")
+		require.Nil(t, err)
+		require.Equal(t, int64(11), readSize)
+		data, err := io.ReadAll(reader)
+		reader.Close()
+		require.Nil(t, err)
+		require.Equal(t, "hello world", string(data))
+
+		// Remove
+		require.Nil(t, s.Remove("abcdefghijkl"))
+		require.Equal(t, int64(0), s.Size())
+
+		// Read after remove should fail
+		_, _, err = s.Read("abcdefghijkl")
+		require.Error(t, err)
+	})
+}
+
+func TestStore_WriteRemoveMultiple(t *testing.T) {
+	forEachBackend(t, testSizeLimit, func(t *testing.T, s *Store, _ func(string)) {
+		for i := 0; i < 5; i++ {
+			_, err := s.Write(fmt.Sprintf("abcdefghijk%d", i), bytes.NewReader(make([]byte, 100)), 0)
+			require.Nil(t, err)
+		}
+		require.Equal(t, int64(500), s.Size())
+
+		require.Nil(t, s.Remove("abcdefghijk1", "abcdefghijk3"))
+		require.Equal(t, int64(300), s.Size())
+
+		// Removed files should not be readable
+		_, _, err := s.Read("abcdefghijk1")
+		require.Error(t, err)
+		_, _, err = s.Read("abcdefghijk3")
+		require.Error(t, err)
+
+		// Remaining files should still be readable
+		for _, id := range []string{"abcdefghijk0", "abcdefghijk2", "abcdefghijk4"} {
+			reader, _, err := s.Read(id)
+			require.Nil(t, err)
+			reader.Close()
+		}
+	})
+}
+
+func TestStore_WriteTotalSizeLimit(t *testing.T) {
+	forEachBackend(t, 100, func(t *testing.T, s *Store, _ func(string)) {
+		// First write fits
+		_, err := s.Write("abcdefghijk0", bytes.NewReader(make([]byte, 80)), 0)
+		require.Nil(t, err)
+		require.Equal(t, int64(80), s.Size())
+		require.Equal(t, int64(20), s.Remaining())
+
+		// Second write exceeds total limit
+		_, err = s.Write("abcdefghijk1", bytes.NewReader(make([]byte, 50)), 0)
+		require.ErrorIs(t, err, util.ErrLimitReached)
+	})
+}
+
+func TestStore_WriteAdditionalLimiter(t *testing.T) {
+	forEachBackend(t, testSizeLimit, func(t *testing.T, s *Store, _ func(string)) {
+		_, err := s.Write("abcdefghijkl", bytes.NewReader(make([]byte, 200)), 0, util.NewFixedLimiter(100))
+		require.ErrorIs(t, err, util.ErrLimitReached)
+
+		// File should not be readable (was cleaned up)
+		_, _, err = s.Read("abcdefghijkl")
+		require.Error(t, err)
+	})
+}
+
+func TestStore_WriteWithLimiter(t *testing.T) {
+	forEachBackend(t, testSizeLimit, func(t *testing.T, s *Store, _ func(string)) {
+		size, err := s.Write("abcdefghijkl", strings.NewReader("normal file"), 0, util.NewFixedLimiter(999))
+		require.Nil(t, err)
+		require.Equal(t, int64(11), size)
+		require.Equal(t, int64(11), s.Size())
+	})
+}
+
+func TestStore_WriteOverwriteSameID(t *testing.T) {
+	forEachBackend(t, testSizeLimit, func(t *testing.T, s *Store, _ func(string)) {
+		// Write 100 bytes
+		_, err := s.Write("abcdefghijkl", bytes.NewReader(make([]byte, 100)), 0)
+		require.Nil(t, err)
+		require.Equal(t, int64(100), s.Size())
+
+		// Overwrite with 50 bytes
+		_, err = s.Write("abcdefghijkl", bytes.NewReader(make([]byte, 50)), 0)
+		require.Nil(t, err)
+		require.Equal(t, int64(150), s.Size()) // Store tracks both writes
+
+		// Read back should return the latest content
+		reader, readSize, err := s.Read("abcdefghijkl")
+		require.Nil(t, err)
+		require.Equal(t, int64(50), readSize)
+		reader.Close()
+	})
+}
+
+func TestStore_WriteAfterFailure(t *testing.T) {
+	forEachBackend(t, testSizeLimit, func(t *testing.T, s *Store, _ func(string)) {
+		// Failed write: limiter rejects it
+		_, err := s.Write("abcdefghijkl", bytes.NewReader(make([]byte, 200)), 0, util.NewFixedLimiter(100))
+		require.ErrorIs(t, err, util.ErrLimitReached)
+		require.Equal(t, int64(0), s.Size())
+
+		// Subsequent write with a different ID should succeed
+		size, err := s.Write("abcdefghijk2", strings.NewReader("hello"), 0)
+		require.Nil(t, err)
+		require.Equal(t, int64(5), size)
+		require.Equal(t, int64(5), s.Size())
+
+		// The failed ID should not be readable
+		_, _, err = s.Read("abcdefghijkl")
+		require.Error(t, err)
+
+		// The successful ID should be readable
+		reader, _, err := s.Read("abcdefghijk2")
+		require.Nil(t, err)
+		reader.Close()
+	})
+}
+
+func TestStore_SyncRecomputesSize(t *testing.T) {
+	forEachBackend(t, testSizeLimit, func(t *testing.T, s *Store, makeOld func(string)) {
+		// Write two files
+		_, err := s.Write("abcdefghijk0", bytes.NewReader(make([]byte, 100)), 0)
+		require.Nil(t, err)
+		_, err = s.Write("abcdefghijk1", bytes.NewReader(make([]byte, 200)), 0)
+		require.Nil(t, err)
+		require.Equal(t, int64(300), s.Size())
+
+		// Corrupt the in-memory size tracking
+		s.mu.Lock()
+		s.size = 999
+		s.mu.Unlock()
+		require.Equal(t, int64(999), s.Size())
+
+		// Set attachmentsWithSizes to include both files so nothing gets deleted
+		s.attachmentsWithSizes = func() (map[string]int64, error) {
+			return map[string]int64{"abcdefghijk0": 100, "abcdefghijk1": 200}, nil
+		}
+
+		// Sync should recompute size from the backend
+		require.Nil(t, s.sync())
+		require.Equal(t, int64(300), s.Size())
+	})
+}
+
+func TestStore_ReadNotFound(t *testing.T) {
+	forEachBackend(t, testSizeLimit, func(t *testing.T, s *Store, _ func(string)) {
+		_, _, err := s.Read("abcdefghijkl")
+		require.Error(t, err)
+	})
+}
+
+func TestStore_InvalidID(t *testing.T) {
+	forEachBackend(t, testSizeLimit, func(t *testing.T, s *Store, _ func(string)) {
+		_, err := s.Write("bad", strings.NewReader("x"), 0)
+		require.Equal(t, errInvalidFileID, err)
+
+		_, _, err = s.Read("bad")
+		require.Equal(t, errInvalidFileID, err)
+
+		err = s.Remove("bad")
+		require.Equal(t, errInvalidFileID, err)
+	})
+}
+
+func TestStore_WriteLargeObjects(t *testing.T) {
+	sizes := map[string]int64{
+		"100B": 100,
+		"6MB":  6 * 1024 * 1024,
+		"12MB": 12 * 1024 * 1024,
+	}
+	for name, sz := range sizes {
+		t.Run(name, func(t *testing.T) {
+			forEachBackend(t, sz+1024, func(t *testing.T, s *Store, _ func(string)) {
+				data := make([]byte, sz)
+				for i := range data {
+					data[i] = byte(i % 251)
+				}
+
+				size, err := s.Write("abcdefghijkl", bytes.NewReader(data), 0)
+				require.Nil(t, err)
+				require.Equal(t, sz, size)
+				require.Equal(t, sz, s.Size())
+
+				reader, readSize, err := s.Read("abcdefghijkl")
+				require.Nil(t, err)
+				require.Equal(t, sz, readSize)
+				got, err := io.ReadAll(reader)
+				reader.Close()
+				require.Nil(t, err)
+				require.Equal(t, data, got)
+			})
+		})
+	}
+}
+
+func TestStore_WriteUntrustedLengthExact(t *testing.T) {
+	forEachBackend(t, testSizeLimit, func(t *testing.T, s *Store, _ func(string)) {
+		size, err := s.Write("abcdefghijkl", strings.NewReader("hello world"), 11)
+		require.Nil(t, err)
+		require.Equal(t, int64(11), size)
+
+		reader, _, err := s.Read("abcdefghijkl")
+		require.Nil(t, err)
+		data, err := io.ReadAll(reader)
+		reader.Close()
+		require.Nil(t, err)
+		require.Equal(t, "hello world", string(data))
+	})
+}
+
+func TestStore_WriteUntrustedLengthBodyLonger(t *testing.T) {
+	forEachBackend(t, testSizeLimit, func(t *testing.T, s *Store, _ func(string)) {
+		// Body has 11 bytes, but we claim 5 — only first 5 bytes should be stored
+		size, err := s.Write("abcdefghijkl", strings.NewReader("hello world"), 5)
+		require.Nil(t, err)
+		require.Equal(t, int64(5), size)
+
+		reader, _, err := s.Read("abcdefghijkl")
+		require.Nil(t, err)
+		data, err := io.ReadAll(reader)
+		reader.Close()
+		require.Nil(t, err)
+		require.Equal(t, "hello", string(data))
+	})
+}
+
+func TestStore_WriteUntrustedLengthBodyShorter(t *testing.T) {
+	forEachBackend(t, testSizeLimit, func(t *testing.T, s *Store, _ func(string)) {
+		// Body has 5 bytes, but we claim 100 — should fail
+		_, err := s.Write("abcdefghijkl", strings.NewReader("hello"), 100)
+		require.Error(t, err)
+
+		// File should not be readable (was cleaned up)
+		_, _, err = s.Read("abcdefghijkl")
+		require.Error(t, err)
+	})
+}
+
+func TestStore_Sync(t *testing.T) {
+	forEachBackend(t, testSizeLimit, func(t *testing.T, s *Store, makeOld func(string)) {
+		// Write some files
+		_, err := s.Write("abcdefghijk0", strings.NewReader("file0"), 0)
+		require.Nil(t, err)
+		_, err = s.Write("abcdefghijk1", strings.NewReader("file1"), 0)
+		require.Nil(t, err)
+		_, err = s.Write("abcdefghijk2", strings.NewReader("file2"), 0)
+		require.Nil(t, err)
+
+		require.Equal(t, int64(15), s.Size())
+
+		// Set the ID provider to only know about file 0 and 2
+		s.attachmentsWithSizes = func() (map[string]int64, error) {
+			return map[string]int64{"abcdefghijk0": 5, "abcdefghijk2": 5}, nil
+		}
+
+		// Make file 1 old enough to be cleaned up
+		makeOld("abcdefghijk1")
+
+		// Run sync
+		require.Nil(t, s.sync())
+
+		// File 1 should be deleted (orphan, old enough)
+		_, _, err = s.Read("abcdefghijk1")
+		require.Error(t, err)
+
+		// Files 0 and 2 should still be readable
+		r, _, err := s.Read("abcdefghijk0")
+		require.Nil(t, err)
+		r.Close()
+		r, _, err = s.Read("abcdefghijk2")
+		require.Nil(t, err)
+		r.Close()
+
+		// Size should be updated
+		require.Equal(t, int64(10), s.Size())
+	})
+}
+
+func TestStore_Sync_SkipsRecentFiles(t *testing.T) {
+	forEachBackend(t, testSizeLimit, func(t *testing.T, s *Store, _ func(string)) {
+		// Write a file
+		_, err := s.Write("abcdefghijk0", strings.NewReader("file0"), 0)
+		require.Nil(t, err)
+
+		// Set the ID provider to return empty (no valid IDs)
+		s.attachmentsWithSizes = func() (map[string]int64, error) {
+			return map[string]int64{}, nil
+		}
+
+		// File was just created, so it should NOT be deleted (< 1 hour old)
+		require.Nil(t, s.sync())
+
+		// File should still exist
+		reader, _, err := s.Read("abcdefghijk0")
+		require.Nil(t, err)
+		reader.Close()
+	})
+}
+
+// forEachBackend runs f against both the file and S3 backends. It also provides a makeOld
+// callback that makes a specific object's timestamp old enough for orphan cleanup (> 1 hour).
+// For the file backend, this uses os.Chtimes; for the S3 backend, it overrides the object's
+// LastModified time via a modTimeOverrideBackend wrapper. Objects start with recent timestamps
+// by default. The S3 subtest is skipped if NTFY_TEST_S3_URL is not set.
+func forEachBackend(t *testing.T, totalSizeLimit int64, f func(t *testing.T, s *Store, makeOld func(string))) {
+	t.Run("file", func(t *testing.T) {
+		dir, s := newTestFileStore(t, totalSizeLimit)
+		makeOld := func(id string) {
+			oldTime := time.Unix(1, 0)
+			os.Chtimes(filepath.Join(dir, id), oldTime, oldTime)
+		}
+		f(t, s, makeOld)
+	})
+	t.Run("s3", func(t *testing.T) {
+		s, wrapper := newTestRealS3Store(t, totalSizeLimit)
+		makeOld := func(id string) {
+			wrapper.setModTime(id, time.Unix(1, 0))
+		}
+		f(t, s, makeOld)
+	})
+}

cmd/app.go

@@ -3,11 +3,12 @@ package cmd
 
 import (
 	"fmt"
+	"os"
+	"regexp"
+
 	"github.com/urfave/cli/v2"
 	"github.com/urfave/cli/v2/altsrc"
 	"heckel.io/ntfy/v2/log"
-	"os"
-	"regexp"
 )
 
 const (
@@ -15,6 +16,12 @@ const (
 	categoryServer = "Server commands"
 )
 
+// Build metadata keys for app.Metadata
+const (
+	MetadataKeyCommit = "commit"
+	MetadataKeyDate   = "date"
+)
+
 var commands = make([]*cli.Command, 0)
 
 var flagsDefault = []cli.Flag{
@@ -37,7 +44,7 @@ func New() *cli.App {
 		Name:                   "ntfy",
 		Usage:                  "Simple pub-sub notification service",
 		UsageText:              "ntfy [OPTION..]",
-		HideVersion:            true,
+		HideVersion:            false,
 		UseShortOptionHandling: true,
 		Reader:                 os.Stdin,
 		Writer:                 os.Stdout,

cmd/publish_test.go

@@ -2,9 +2,6 @@ package cmd
 
 import (
 	"fmt"
-	"github.com/stretchr/testify/require"
-	"heckel.io/ntfy/v2/test"
-	"heckel.io/ntfy/v2/util"
 	"net/http"
 	"net/http/httptest"
 	"os"
@@ -14,9 +11,14 @@ import (
 	"strings"
 	"testing"
 	"time"
+
+	"github.com/stretchr/testify/require"
+	"heckel.io/ntfy/v2/test"
+	"heckel.io/ntfy/v2/util"
 )
 
 func TestCLI_Publish_Subscribe_Poll_Real_Server(t *testing.T) {
+	t.Skip("temporarily disabled") // FIXME
 	testMessage := util.RandomString(10)
 	app, _, _, _ := newTestApp()
 	require.Nil(t, app.Run([]string{"ntfy", "publish", "ntfytest", "ntfy unit test " + testMessage}))

cmd/serve.go

@@ -39,6 +39,8 @@ var flagsServe = append(
 	altsrc.NewStringFlag(&cli.StringFlag{Name: "key-file", Aliases: []string{"key_file", "K"}, EnvVars: []string{"NTFY_KEY_FILE"}, Usage: "private key file, if listen-https is set"}),
 	altsrc.NewStringFlag(&cli.StringFlag{Name: "cert-file", Aliases: []string{"cert_file", "E"}, EnvVars: []string{"NTFY_CERT_FILE"}, Usage: "certificate file, if listen-https is set"}),
 	altsrc.NewStringFlag(&cli.StringFlag{Name: "firebase-key-file", Aliases: []string{"firebase_key_file", "F"}, EnvVars: []string{"NTFY_FIREBASE_KEY_FILE"}, Usage: "Firebase credentials file; if set additionally publish to FCM topic"}),
+	altsrc.NewStringFlag(&cli.StringFlag{Name: "database-url", Aliases: []string{"database_url"}, EnvVars: []string{"NTFY_DATABASE_URL"}, Usage: "PostgreSQL connection string for database-backed stores (e.g. postgres://user:pass@host:5432/ntfy)"}),
+	altsrc.NewStringSliceFlag(&cli.StringSliceFlag{Name: "database-replica-urls", Aliases: []string{"database_replica_urls"}, EnvVars: []string{"NTFY_DATABASE_REPLICA_URLS"}, Usage: "PostgreSQL read replica connection strings for offloading read queries"}),
 	altsrc.NewStringFlag(&cli.StringFlag{Name: "cache-file", Aliases: []string{"cache_file", "C"}, EnvVars: []string{"NTFY_CACHE_FILE"}, Usage: "cache file used for message caching"}),
 	altsrc.NewStringFlag(&cli.StringFlag{Name: "cache-duration", Aliases: []string{"cache_duration", "b"}, EnvVars: []string{"NTFY_CACHE_DURATION"}, Value: util.FormatDuration(server.DefaultCacheDuration), Usage: "buffer messages for this time to allow `since` requests"}),
 	altsrc.NewIntFlag(&cli.IntFlag{Name: "cache-batch-size", Aliases: []string{"cache_batch_size"}, EnvVars: []string{"NTFY_BATCH_SIZE"}, Usage: "max size of messages to batch together when writing to message cache (if zero, writes are synchronous)"}),
@@ -50,7 +52,8 @@ var flagsServe = append(
 	altsrc.NewStringSliceFlag(&cli.StringSliceFlag{Name: "auth-users", Aliases: []string{"auth_users"}, EnvVars: []string{"NTFY_AUTH_USERS"}, Usage: "pre-provisioned declarative users"}),
 	altsrc.NewStringSliceFlag(&cli.StringSliceFlag{Name: "auth-access", Aliases: []string{"auth_access"}, EnvVars: []string{"NTFY_AUTH_ACCESS"}, Usage: "pre-provisioned declarative access control entries"}),
 	altsrc.NewStringSliceFlag(&cli.StringSliceFlag{Name: "auth-tokens", Aliases: []string{"auth_tokens"}, EnvVars: []string{"NTFY_AUTH_TOKENS"}, Usage: "pre-provisioned declarative access tokens"}),
-	altsrc.NewStringFlag(&cli.StringFlag{Name: "attachment-cache-dir", Aliases: []string{"attachment_cache_dir"}, EnvVars: []string{"NTFY_ATTACHMENT_CACHE_DIR"}, Usage: "cache directory for attached files"}),
+	altsrc.NewBoolFlag(&cli.BoolFlag{Name: "auth-access-cache", Aliases: []string{"auth_access_cache"}, EnvVars: []string{"NTFY_AUTH_ACCESS_CACHE"}, Value: user.DefaultAccessCacheEnabled, Usage: "enables the in-memory ACL cache (high-volume servers only)"}),
+	altsrc.NewStringFlag(&cli.StringFlag{Name: "attachment-cache-dir", Aliases: []string{"attachment_cache_dir"}, EnvVars: []string{"NTFY_ATTACHMENT_CACHE_DIR"}, Usage: "cache directory for attached files, or S3 URL (s3://ACCESS_KEY:SECRET_KEY@BUCKET[/PREFIX]?region=REGION[&endpoint=ENDPOINT])"}),
 	altsrc.NewStringFlag(&cli.StringFlag{Name: "attachment-total-size-limit", Aliases: []string{"attachment_total_size_limit", "A"}, EnvVars: []string{"NTFY_ATTACHMENT_TOTAL_SIZE_LIMIT"}, Value: util.FormatSize(server.DefaultAttachmentTotalSizeLimit), Usage: "limit of the on-disk attachment cache"}),
 	altsrc.NewStringFlag(&cli.StringFlag{Name: "attachment-file-size-limit", Aliases: []string{"attachment_file_size_limit", "Y"}, EnvVars: []string{"NTFY_ATTACHMENT_FILE_SIZE_LIMIT"}, Value: util.FormatSize(server.DefaultAttachmentFileSizeLimit), Usage: "per-file attachment size limit (e.g. 300k, 2M, 100M)"}),
 	altsrc.NewStringFlag(&cli.StringFlag{Name: "attachment-expiry-duration", Aliases: []string{"attachment_expiry_duration", "X"}, EnvVars: []string{"NTFY_ATTACHMENT_EXPIRY_DURATION"}, Value: util.FormatDuration(server.DefaultAttachmentExpiryDuration), Usage: "duration after which uploaded attachments will be deleted (e.g. 3h, 20h)"}),
@@ -69,6 +72,7 @@ var flagsServe = append(
 	altsrc.NewStringFlag(&cli.StringFlag{Name: "smtp-sender-user", Aliases: []string{"smtp_sender_user"}, EnvVars: []string{"NTFY_SMTP_SENDER_USER"}, Usage: "SMTP user (if e-mail sending is enabled)"}),
 	altsrc.NewStringFlag(&cli.StringFlag{Name: "smtp-sender-pass", Aliases: []string{"smtp_sender_pass"}, EnvVars: []string{"NTFY_SMTP_SENDER_PASS"}, Usage: "SMTP password (if e-mail sending is enabled)"}),
 	altsrc.NewStringFlag(&cli.StringFlag{Name: "smtp-sender-from", Aliases: []string{"smtp_sender_from"}, EnvVars: []string{"NTFY_SMTP_SENDER_FROM"}, Usage: "SMTP sender address (if e-mail sending is enabled)"}),
+	altsrc.NewBoolFlag(&cli.BoolFlag{Name: "smtp-sender-verify", Aliases: []string{"smtp_sender_verify"}, EnvVars: []string{"NTFY_SMTP_SENDER_VERIFY"}, Value: false, Usage: "require verified email addresses for sending email notifications"}),
 	altsrc.NewStringFlag(&cli.StringFlag{Name: "smtp-server-listen", Aliases: []string{"smtp_server_listen"}, EnvVars: []string{"NTFY_SMTP_SERVER_LISTEN"}, Usage: "SMTP server address (ip:port) for incoming emails, e.g. :25"}),
 	altsrc.NewStringFlag(&cli.StringFlag{Name: "smtp-server-domain", Aliases: []string{"smtp_server_domain"}, EnvVars: []string{"NTFY_SMTP_SERVER_DOMAIN"}, Usage: "SMTP domain for incoming e-mail, e.g. ntfy.sh"}),
 	altsrc.NewStringFlag(&cli.StringFlag{Name: "smtp-server-addr-prefix", Aliases: []string{"smtp_server_addr_prefix"}, EnvVars: []string{"NTFY_SMTP_SERVER_ADDR_PREFIX"}, Usage: "SMTP email address prefix for topics to prevent spam (e.g. 'ntfy-')"}),
@@ -90,6 +94,8 @@ var flagsServe = append(
 	altsrc.NewIntFlag(&cli.IntFlag{Name: "visitor-message-daily-limit", Aliases: []string{"visitor_message_daily_limit"}, EnvVars: []string{"NTFY_VISITOR_MESSAGE_DAILY_LIMIT"}, Value: server.DefaultVisitorMessageDailyLimit, Usage: "max messages per visitor per day, derived from request limit if unset"}),
 	altsrc.NewIntFlag(&cli.IntFlag{Name: "visitor-email-limit-burst", Aliases: []string{"visitor_email_limit_burst"}, EnvVars: []string{"NTFY_VISITOR_EMAIL_LIMIT_BURST"}, Value: server.DefaultVisitorEmailLimitBurst, Usage: "initial limit of e-mails per visitor"}),
 	altsrc.NewStringFlag(&cli.StringFlag{Name: "visitor-email-limit-replenish", Aliases: []string{"visitor_email_limit_replenish"}, EnvVars: []string{"NTFY_VISITOR_EMAIL_LIMIT_REPLENISH"}, Value: util.FormatDuration(server.DefaultVisitorEmailLimitReplenish), Usage: "interval at which burst limit is replenished (one per x)"}),
+	altsrc.NewIntFlag(&cli.IntFlag{Name: "visitor-topic-creation-limit-burst", Aliases: []string{"visitor_topic_creation_limit_burst"}, EnvVars: []string{"NTFY_VISITOR_TOPIC_CREATION_LIMIT_BURST"}, Value: server.DefaultVisitorTopicCreationLimitBurst, Usage: "burst of new topic creations per visitor (0 = disabled)"}),
+	altsrc.NewStringFlag(&cli.StringFlag{Name: "visitor-topic-creation-limit-replenish", Aliases: []string{"visitor_topic_creation_limit_replenish"}, EnvVars: []string{"NTFY_VISITOR_TOPIC_CREATION_LIMIT_REPLENISH"}, Value: util.FormatDuration(server.DefaultVisitorTopicCreationLimitReplenish), Usage: "interval at which topic-creation tokens are refilled (one per x)"}),
 	altsrc.NewIntFlag(&cli.IntFlag{Name: "visitor-prefix-bits-ipv4", Aliases: []string{"visitor_prefix_bits_ipv4"}, EnvVars: []string{"NTFY_VISITOR_PREFIX_BITS_IPV4"}, Value: server.DefaultVisitorPrefixBitsIPv4, Usage: "number of bits of the IPv4 address to use for rate limiting (default: 32, full address)"}),
 	altsrc.NewIntFlag(&cli.IntFlag{Name: "visitor-prefix-bits-ipv6", Aliases: []string{"visitor_prefix_bits_ipv6"}, EnvVars: []string{"NTFY_VISITOR_PREFIX_BITS_IPV6"}, Value: server.DefaultVisitorPrefixBitsIPv6, Usage: "number of bits of the IPv6 address to use for rate limiting (default: 64, /64 subnet)"}),
 	altsrc.NewBoolFlag(&cli.BoolFlag{Name: "behind-proxy", Aliases: []string{"behind_proxy", "P"}, EnvVars: []string{"NTFY_BEHIND_PROXY"}, Value: false, Usage: "if set, use forwarded header (e.g. X-Forwarded-For, X-Client-IP) to determine visitor IP address (for rate limiting)"}),
@@ -128,12 +134,6 @@ Examples:
   ntfy serve --listen-http :8080  # Starts server with alternate port`,
 }
 
-// App metadata fields used to pass from
-const (
-	MetadataKeyCommit = "commit"
-	MetadataKeyDate   = "date"
-)
-
 func execServe(c *cli.Context) error {
 	if c.NArg() > 0 {
 		return errors.New("no arguments expected, see 'ntfy serve --help' for help")
@@ -149,6 +149,8 @@ func execServe(c *cli.Context) error {
 	keyFile := c.String("key-file")
 	certFile := c.String("cert-file")
 	firebaseKeyFile := c.String("firebase-key-file")
+	databaseURL := c.String("database-url")
+	databaseReplicaURLs := c.StringSlice("database-replica-urls")
 	webPushPrivateKey := c.String("web-push-private-key")
 	webPushPublicKey := c.String("web-push-public-key")
 	webPushFile := c.String("web-push-file")
@@ -167,6 +169,7 @@ func execServe(c *cli.Context) error {
 	authUsersRaw := c.StringSlice("auth-users")
 	authAccessRaw := c.StringSlice("auth-access")
 	authTokensRaw := c.StringSlice("auth-tokens")
+	authAccessCacheEnabled := c.Bool("auth-access-cache")
 	attachmentCacheDir := c.String("attachment-cache-dir")
 	attachmentTotalSizeLimitStr := c.String("attachment-total-size-limit")
 	attachmentFileSizeLimitStr := c.String("attachment-file-size-limit")
@@ -186,6 +189,7 @@ func execServe(c *cli.Context) error {
 	smtpSenderUser := c.String("smtp-sender-user")
 	smtpSenderPass := c.String("smtp-sender-pass")
 	smtpSenderFrom := c.String("smtp-sender-from")
+	smtpSenderVerify := c.Bool("smtp-sender-verify")
 	smtpServerListen := c.String("smtp-server-listen")
 	smtpServerDomain := c.String("smtp-server-domain")
 	smtpServerAddrPrefix := c.String("smtp-server-addr-prefix")
@@ -207,6 +211,8 @@ func execServe(c *cli.Context) error {
 	visitorMessageDailyLimit := c.Int("visitor-message-daily-limit")
 	visitorEmailLimitBurst := c.Int("visitor-email-limit-burst")
 	visitorEmailLimitReplenishStr := c.String("visitor-email-limit-replenish")
+	visitorTopicCreationLimitBurst := c.Int("visitor-topic-creation-limit-burst")
+	visitorTopicCreationLimitReplenishStr := c.String("visitor-topic-creation-limit-replenish")
 	visitorPrefixBitsIPv4 := c.Int("visitor-prefix-bits-ipv4")
 	visitorPrefixBitsIPv6 := c.Int("visitor-prefix-bits-ipv6")
 	behindProxy := c.Bool("behind-proxy")
@@ -252,6 +258,10 @@ func execServe(c *cli.Context) error {
 	if err != nil {
 		return fmt.Errorf("invalid visitor email limit replenish: %s", visitorEmailLimitReplenishStr)
 	}
+	visitorTopicCreationLimitReplenish, err := util.ParseDuration(visitorTopicCreationLimitReplenishStr)
+	if err != nil {
+		return fmt.Errorf("invalid visitor topic creation limit replenish: %s", visitorTopicCreationLimitReplenishStr)
+	}
 	webPushExpiryDuration, err := util.ParseDuration(webPushExpiryDurationStr)
 	if err != nil {
 		return fmt.Errorf("invalid web push expiry duration: %s", webPushExpiryDurationStr)
@@ -286,12 +296,18 @@ func execServe(c *cli.Context) error {
 	}
 
 	// Check values
-	if firebaseKeyFile != "" && !util.FileExists(firebaseKeyFile) {
+	if databaseURL != "" && !strings.HasPrefix(databaseURL, "postgres://") && !strings.HasPrefix(databaseURL, "postgresql://") {
+		return errors.New("if database-url is set, it must start with postgres:// or postgresql://")
+	} else if databaseURL != "" && (authFile != "" || cacheFile != "" || webPushFile != "") {
+		return errors.New("if database-url is set, auth-file, cache-file, and web-push-file must not be set")
+	} else if len(databaseReplicaURLs) > 0 && databaseURL == "" {
+		return errors.New("database-replica-urls can only be used if database-url is also set")
+	} else if firebaseKeyFile != "" && !util.FileExists(firebaseKeyFile) {
 		return errors.New("if set, FCM key file must exist")
 	} else if firebaseKeyFile != "" && !server.FirebaseAvailable {
 		return errors.New("cannot set firebase-key-file, support for Firebase is not available (nofirebase)")
-	} else if webPushPublicKey != "" && (webPushPrivateKey == "" || webPushFile == "" || webPushEmailAddress == "" || baseURL == "") {
-		return errors.New("if web push is enabled, web-push-private-key, web-push-public-key, web-push-file, web-push-email-address, and base-url should be set. run 'ntfy webpush keys' to generate keys")
+	} else if webPushPublicKey != "" && (webPushPrivateKey == "" || (webPushFile == "" && databaseURL == "") || webPushEmailAddress == "" || baseURL == "") {
+		return errors.New("if web push is enabled, web-push-private-key, web-push-public-key, web-push-file (or database-url), web-push-email-address, and base-url should be set. run 'ntfy webpush keys' to generate keys")
 	} else if keepaliveInterval < 5*time.Second {
 		return errors.New("keepalive interval cannot be lower than five seconds")
 	} else if managerInterval < 5*time.Second {
@@ -306,6 +322,8 @@ func execServe(c *cli.Context) error {
 		return errors.New("if listen-https is set, both key-file and cert-file must be set")
 	} else if smtpSenderAddr != "" && (baseURL == "" || smtpSenderFrom == "") {
 		return errors.New("if smtp-sender-addr is set, base-url, and smtp-sender-from must also be set")
+	} else if smtpSenderVerify && smtpSenderAddr == "" {
+		return errors.New("if smtp-sender-verify is set, smtp-sender-addr must also be set")
 	} else if smtpServerListen != "" && smtpServerDomain == "" {
 		return errors.New("if smtp-server-listen is set, smtp-server-domain must also be set")
 	} else if attachmentCacheDir != "" && baseURL == "" {
@@ -327,8 +345,8 @@ func execServe(c *cli.Context) error {
 		return errors.New("if upstream-base-url is set, base-url must also be set")
 	} else if upstreamBaseURL != "" && baseURL != "" && baseURL == upstreamBaseURL {
 		return errors.New("base-url and upstream-base-url cannot be identical, you'll likely want to set upstream-base-url to https://ntfy.sh, see https://ntfy.sh/docs/config/#ios-instant-notifications")
-	} else if authFile == "" && (enableSignup || enableLogin || requireLogin || enableReservations || stripeSecretKey != "") {
-		return errors.New("cannot set enable-signup, enable-login, require-login, enable-reserve-topics, or stripe-secret-key if auth-file is not set")
+	} else if authFile == "" && databaseURL == "" && (enableSignup || enableLogin || requireLogin || enableReservations || stripeSecretKey != "") {
+		return errors.New("cannot set enable-signup, enable-login, require-login, enable-reserve-topics, or stripe-secret-key if auth-file or database-url is not set")
 	} else if enableSignup && !enableLogin {
 		return errors.New("cannot set enable-signup without also setting enable-login")
 	} else if requireLogin && !enableLogin {
@@ -337,8 +355,8 @@ func execServe(c *cli.Context) error {
 		return errors.New("cannot set stripe-secret-key or stripe-webhook-key, support for payments is not available in this build (nopayments)")
 	} else if stripeSecretKey != "" && (stripeWebhookKey == "" || baseURL == "") {
 		return errors.New("if stripe-secret-key is set, stripe-webhook-key and base-url must also be set")
-	} else if twilioAccount != "" && (twilioAuthToken == "" || twilioPhoneNumber == "" || twilioVerifyService == "" || baseURL == "" || authFile == "") {
-		return errors.New("if twilio-account is set, twilio-auth-token, twilio-phone-number, twilio-verify-service, base-url, and auth-file must also be set")
+	} else if twilioAccount != "" && (twilioAuthToken == "" || twilioPhoneNumber == "" || twilioVerifyService == "" || baseURL == "" || (authFile == "" && databaseURL == "")) {
+		return errors.New("if twilio-account is set, twilio-auth-token, twilio-phone-number, twilio-verify-service, base-url, and auth-file (or database-url) must also be set")
 	} else if messageSizeLimit > server.DefaultMessageSizeLimit {
 		log.Warn("message-size-limit is greater than 4K, this is not recommended and largely untested, and may lead to issues with some clients")
 		if messageSizeLimit > 5*1024*1024 {
@@ -418,6 +436,15 @@ func execServe(c *cli.Context) error {
 		payments.Setup(stripeSecretKey)
 	}
 
+	// Parse Twilio template
+	var twilioCallFormatTemplate *template.Template
+	if twilioCallFormat != "" {
+		twilioCallFormatTemplate, err = template.New("").Parse(twilioCallFormat)
+		if err != nil {
+			return fmt.Errorf("failed to parse twilio-call-format template: %w", err)
+		}
+	}
+
 	// Add default forbidden topics
 	disallowedTopics = append(disallowedTopics, server.DefaultDisallowedTopics...)
 
@@ -443,6 +470,7 @@ func execServe(c *cli.Context) error {
 	conf.AuthUsers = authUsers
 	conf.AuthAccess = authAccess
 	conf.AuthTokens = authTokens
+	conf.AuthAccessCacheEnabled = authAccessCacheEnabled
 	conf.AttachmentCacheDir = attachmentCacheDir
 	conf.AttachmentTotalSizeLimit = attachmentTotalSizeLimit
 	conf.AttachmentFileSizeLimit = attachmentFileSizeLimit
@@ -458,6 +486,7 @@ func execServe(c *cli.Context) error {
 	conf.SMTPSenderUser = smtpSenderUser
 	conf.SMTPSenderPass = smtpSenderPass
 	conf.SMTPSenderFrom = smtpSenderFrom
+	conf.SMTPSenderVerify = smtpSenderVerify
 	conf.SMTPServerListen = smtpServerListen
 	conf.SMTPServerDomain = smtpServerDomain
 	conf.SMTPServerAddrPrefix = smtpServerAddrPrefix
@@ -465,13 +494,7 @@ func execServe(c *cli.Context) error {
 	conf.TwilioAuthToken = twilioAuthToken
 	conf.TwilioPhoneNumber = twilioPhoneNumber
 	conf.TwilioVerifyService = twilioVerifyService
-	if twilioCallFormat != "" {
-		tmpl, err := template.New("twiml").Parse(twilioCallFormat)
-		if err != nil {
-			return fmt.Errorf("failed to parse twilio-call-format template: %w", err)
-		}
-		conf.TwilioCallFormat = tmpl
-	}
+	conf.TwilioCallFormat = twilioCallFormatTemplate
 	conf.MessageSizeLimit = int(messageSizeLimit)
 	conf.MessageDelayMax = messageDelayLimit
 	conf.TotalTopicLimit = totalTopicLimit
@@ -485,6 +508,8 @@ func execServe(c *cli.Context) error {
 	conf.VisitorMessageDailyLimit = visitorMessageDailyLimit
 	conf.VisitorEmailLimitBurst = visitorEmailLimitBurst
 	conf.VisitorEmailLimitReplenish = visitorEmailLimitReplenish
+	conf.VisitorTopicCreationLimitBurst = visitorTopicCreationLimitBurst
+	conf.VisitorTopicCreationLimitReplenish = visitorTopicCreationLimitReplenish
 	conf.VisitorPrefixBitsIPv4 = visitorPrefixBitsIPv4
 	conf.VisitorPrefixBitsIPv6 = visitorPrefixBitsIPv6
 	conf.BehindProxy = behindProxy
@@ -500,6 +525,8 @@ func execServe(c *cli.Context) error {
 	conf.EnableMetrics = enableMetrics
 	conf.MetricsListenHTTP = metricsListenHTTP
 	conf.ProfileListenHTTP = profileListenHTTP
+	conf.DatabaseURL = databaseURL
+	conf.DatabaseReplicaURLs = databaseReplicaURLs
 	conf.WebPushPrivateKey = webPushPrivateKey
 	conf.WebPushPublicKey = webPushPublicKey
 	conf.WebPushFile = webPushFile

cmd/serve_unix.go

@@ -1,4 +1,4 @@
-//go:build linux || dragonfly || freebsd || netbsd || openbsd
+//go:build (darwin || linux || dragonfly || freebsd || netbsd || openbsd) && !noserver
 
 package cmd
 

cmd/user.go

@@ -6,13 +6,17 @@ import (
 	"crypto/subtle"
 	"errors"
 	"fmt"
-	"heckel.io/ntfy/v2/server"
-	"heckel.io/ntfy/v2/user"
 	"os"
 	"strings"
+	"time"
 
 	"github.com/urfave/cli/v2"
 	"github.com/urfave/cli/v2/altsrc"
+	"heckel.io/ntfy/v2/db"
+	"heckel.io/ntfy/v2/db/pg"
+	"heckel.io/ntfy/v2/mail"
+	"heckel.io/ntfy/v2/server"
+	"heckel.io/ntfy/v2/user"
 	"heckel.io/ntfy/v2/util"
 )
 
@@ -29,12 +33,18 @@ var flagsUser = append(
 	&cli.StringFlag{Name: "config", Aliases: []string{"c"}, EnvVars: []string{"NTFY_CONFIG_FILE"}, Value: server.DefaultConfigFile, DefaultText: server.DefaultConfigFile, Usage: "config file"},
 	altsrc.NewStringFlag(&cli.StringFlag{Name: "auth-file", Aliases: []string{"auth_file", "H"}, EnvVars: []string{"NTFY_AUTH_FILE"}, Usage: "auth database file used for access control"}),
 	altsrc.NewStringFlag(&cli.StringFlag{Name: "auth-default-access", Aliases: []string{"auth_default_access", "p"}, EnvVars: []string{"NTFY_AUTH_DEFAULT_ACCESS"}, Value: "read-write", Usage: "default permissions if no matching entries in the auth database are found"}),
+	altsrc.NewStringFlag(&cli.StringFlag{Name: "database-url", Aliases: []string{"database_url"}, EnvVars: []string{"NTFY_DATABASE_URL"}, Usage: "PostgreSQL connection string for database-backed stores"}),
+	altsrc.NewStringFlag(&cli.StringFlag{Name: "base-url", Aliases: []string{"base_url", "B"}, EnvVars: []string{"NTFY_BASE_URL"}, Usage: "externally visible base URL for this host (e.g. https://ntfy.sh)"}),
+	altsrc.NewStringFlag(&cli.StringFlag{Name: "smtp-sender-addr", Aliases: []string{"smtp_sender_addr"}, EnvVars: []string{"NTFY_SMTP_SENDER_ADDR"}, Usage: "SMTP server address (host:port) for outgoing emails"}),
+	altsrc.NewStringFlag(&cli.StringFlag{Name: "smtp-sender-user", Aliases: []string{"smtp_sender_user"}, EnvVars: []string{"NTFY_SMTP_SENDER_USER"}, Usage: "SMTP user (if e-mail sending is enabled)"}),
+	altsrc.NewStringFlag(&cli.StringFlag{Name: "smtp-sender-pass", Aliases: []string{"smtp_sender_pass"}, EnvVars: []string{"NTFY_SMTP_SENDER_PASS"}, Usage: "SMTP password (if e-mail sending is enabled)"}),
+	altsrc.NewStringFlag(&cli.StringFlag{Name: "smtp-sender-from", Aliases: []string{"smtp_sender_from"}, EnvVars: []string{"NTFY_SMTP_SENDER_FROM"}, Usage: "SMTP sender address (if e-mail sending is enabled)"}),
 )
 
 var cmdUser = &cli.Command{
 	Name:      "user",
 	Usage:     "Manage/show users",
-	UsageText: "ntfy user [list|add|remove|change-pass|change-role] ...",
+	UsageText: "ntfy user [list|add|remove|change-pass|reset-pass|change-role] ...",
 	Flags:     flagsUser,
 	Before:    initConfigFileInputSourceFunc("config", flagsUser, initLogFunc),
 	Category:  categoryServer,
@@ -95,6 +105,30 @@ Example:
 
 You may set the NTFY_PASSWORD environment variable to pass the new password or NTFY_PASSWORD_HASH to pass
 directly the bcrypt hash. This is useful if you are updating users via scripts.
+`,
+		},
+		{
+			Name:      "reset-pass",
+			Aliases:   []string{"rp"},
+			Usage:     "Generates a password reset link for a user",
+			UsageText: "ntfy user reset-pass [--send-email] USERNAME",
+			Action:    execUserResetPass,
+			Flags: []cli.Flag{
+				&cli.BoolFlag{Name: "send-email", Aliases: []string{"e"}, Usage: "also email the reset link to the user's primary email"},
+			},
+			Description: `Generate a password reset link for the given user and print it to stdout.
+
+The user completes the reset by opening the link in a browser and choosing a new password;
+the admin never learns or chooses the new password. The link is single-use and expires after
+one hour. This is an admin override of the self-service reset flow -- unlike self-service, it
+does not require the user to have a verified primary email (the token is bound to the user).
+
+With --send-email, the link is additionally emailed to the user's primary email address (this
+requires SMTP to be configured and the user to have a verified primary email).
+
+Example:
+  ntfy user reset-pass phil               # Print a reset link for user phil
+  ntfy user reset-pass --send-email phil  # Print and email the reset link
 `,
 		},
 		{
@@ -254,7 +288,6 @@ func execUserDel(c *cli.Context) error {
 func execUserChangePass(c *cli.Context) error {
 	username := c.Args().Get(0)
 	password, hashed := os.LookupEnv("NTFY_PASSWORD_HASH")
-
 	if !hashed {
 		password = os.Getenv("NTFY_PASSWORD")
 	}
@@ -283,6 +316,61 @@ func execUserChangePass(c *cli.Context) error {
 	return nil
 }
 
+func execUserResetPass(c *cli.Context) error {
+	username := c.Args().Get(0)
+	sendEmail := c.Bool("send-email")
+	baseURL := strings.TrimSuffix(c.String("base-url"), "/")
+	if username == "" {
+		return errors.New("username expected, type 'ntfy user reset-pass --help' for help")
+	} else if username == userEveryone || username == user.Everyone {
+		return errors.New("username not allowed")
+	} else if baseURL == "" {
+		return errors.New("base-url must be configured to generate a reset link")
+	}
+	manager, err := createUserManager(c)
+	if err != nil {
+		return err
+	}
+	u, err := manager.User(username)
+	if errors.Is(err, user.ErrUserNotFound) {
+		return fmt.Errorf("user %s does not exist", username)
+	} else if err != nil {
+		return err
+	} else if u.Provisioned {
+		return fmt.Errorf("user %s is provisioned in the config file; its password cannot be reset", username)
+	}
+	// Resolve the primary email up front if we need to send -- fail before creating a token
+	var primaryEmail string
+	if sendEmail {
+		primaryEmail, err = manager.PrimaryEmail(u.ID)
+		if err != nil {
+			return err
+		} else if primaryEmail == "" {
+			return fmt.Errorf("user %s has no primary email; cannot send reset link (omit --send-email to just print it)", username)
+		}
+	}
+	// The reset token is bound to the user, not an email -- so this works even with no SMTP
+	token, err := manager.AddMagicLink(user.MagicLinkKindPasswordReset, u.ID, "", time.Hour)
+	if err != nil {
+		return err
+	}
+	link := baseURL + "/account/password/reset/" + token
+	fmt.Fprintln(c.App.Writer, link)
+	if sendEmail {
+		sender := mail.NewSender(&mail.Config{
+			SMTPAddr: c.String("smtp-sender-addr"),
+			SMTPUser: c.String("smtp-sender-user"),
+			SMTPPass: c.String("smtp-sender-pass"),
+			From:     c.String("smtp-sender-from"),
+		})
+		if err := sender.SendPasswordReset(primaryEmail, link); err != nil {
+			return fmt.Errorf("failed to send reset email to %s: %w", primaryEmail, err)
+		}
+		fmt.Fprintf(c.App.ErrWriter, "reset link emailed to %s\n", primaryEmail)
+	}
+	return nil
+}
+
 func execUserChangeRole(c *cli.Context) error {
 	username := c.Args().Get(0)
 	role := user.Role(c.Args().Get(1))
@@ -310,7 +398,7 @@ func execUserHash(c *cli.Context) error {
 	if err != nil {
 		return err
 	}
-	hash, err := user.HashPassword(password)
+	hash, err := user.HashPassword(password, user.DefaultUserPasswordBcryptCost)
 	if err != nil {
 		return fmt.Errorf("failed to hash password: %w", err)
 	}
@@ -365,24 +453,31 @@ func createUserManager(c *cli.Context) (*user.Manager, error) {
 	authFile := c.String("auth-file")
 	authStartupQueries := c.String("auth-startup-queries")
 	authDefaultAccess := c.String("auth-default-access")
-	if authFile == "" {
-		return nil, errors.New("option auth-file not set; auth is unconfigured for this server")
-	} else if !util.FileExists(authFile) {
-		return nil, errors.New("auth-file does not exist; please start the server at least once to create it")
-	}
+	databaseURL := c.String("database-url")
 	authDefault, err := user.ParsePermission(authDefaultAccess)
 	if err != nil {
 		return nil, errors.New("if set, auth-default-access must start set to 'read-write', 'read-only', 'write-only' or 'deny-all'")
 	}
 	authConfig := &user.Config{
-		Filename:            authFile,
-		StartupQueries:      authStartupQueries,
 		DefaultAccess:       authDefault,
 		ProvisionEnabled:    false, // Hack: Do not re-provision users on manager initialization
 		BcryptCost:          user.DefaultUserPasswordBcryptCost,
 		QueueWriterInterval: user.DefaultUserStatsQueueWriterInterval,
+		AccessCacheEnabled:  false, // Do not cache for CLI commands
 	}
-	return user.NewManager(authConfig)
+	if databaseURL != "" {
+		host, dbErr := pg.Open(databaseURL)
+		if dbErr != nil {
+			return nil, dbErr
+		}
+		return user.NewPostgresManager(db.New(host, nil), authConfig)
+	} else if authFile != "" {
+		if !util.FileExists(authFile) {
+			return nil, errors.New("auth-file does not exist; please start the server at least once to create it")
+		}
+		return user.NewSQLiteManager(authFile, authStartupQueries, authConfig)
+	}
+	return nil, errors.New("option database-url or auth-file not set; auth is unconfigured for this server")
 }
 
 func readPasswordAndConfirm(c *cli.Context) (string, error) {

cmd/user_test.go

@@ -1,14 +1,15 @@
 package cmd
 
 import (
+	"os"
+	"path/filepath"
+	"testing"
+
 	"github.com/stretchr/testify/require"
 	"github.com/urfave/cli/v2"
 	"heckel.io/ntfy/v2/server"
 	"heckel.io/ntfy/v2/test"
 	"heckel.io/ntfy/v2/user"
-	"os"
-	"path/filepath"
-	"testing"
 )
 
 func TestCLI_User_Add(t *testing.T) {
@@ -121,6 +122,69 @@ func TestCLI_User_Delete(t *testing.T) {
 	require.Contains(t, err.Error(), "user phil does not exist")
 }
 
+func TestCLI_User_ResetPass(t *testing.T) {
+	s, conf, port := newTestServerWithAuth(t)
+	defer test.StopServer(t, s, port)
+
+	app, stdin, _, _ := newTestApp()
+	stdin.WriteString("mypass\nmypass")
+	require.Nil(t, runUserCommand(app, conf, "add", "phil"))
+
+	// Prints a working-looking reset link when base-url is set
+	app, _, stdout, _ := newTestApp()
+	require.Nil(t, runUserCommand(app, conf, "--base-url=https://ntfy.example.com", "reset-pass", "phil"))
+	require.Contains(t, stdout.String(), "https://ntfy.example.com/account/password/reset/")
+}
+
+func TestCLI_User_ResetPass_NoBaseURL(t *testing.T) {
+	s, conf, port := newTestServerWithAuth(t)
+	defer test.StopServer(t, s, port)
+
+	app, stdin, _, _ := newTestApp()
+	stdin.WriteString("mypass\nmypass")
+	require.Nil(t, runUserCommand(app, conf, "add", "phil"))
+
+	app, _, _, _ = newTestApp()
+	err := runUserCommand(app, conf, "reset-pass", "phil")
+	require.Error(t, err)
+	require.Contains(t, err.Error(), "base-url")
+}
+
+func TestCLI_User_ResetPass_SendEmailNoPrimary(t *testing.T) {
+	s, conf, port := newTestServerWithAuth(t)
+	defer test.StopServer(t, s, port)
+
+	app, stdin, _, _ := newTestApp()
+	stdin.WriteString("mypass\nmypass")
+	require.Nil(t, runUserCommand(app, conf, "add", "phil"))
+
+	// --send-email requires a primary email; phil has none
+	app, _, _, _ = newTestApp()
+	err := runUserCommand(app, conf, "--base-url=https://ntfy.example.com", "reset-pass", "--send-email", "phil")
+	require.Error(t, err)
+	require.Contains(t, err.Error(), "no primary email")
+}
+
+func TestCLI_User_ResetPass_ProvisionedRejected(t *testing.T) {
+	s, conf, port := newTestServerWithAuth(t)
+	defer test.StopServer(t, s, port)
+
+	// Seed a provisioned user into the auth database via config provisioning
+	m, err := user.NewSQLiteManager(conf.AuthFile, "", &user.Config{
+		ProvisionEnabled: true,
+		Users: []*user.User{
+			{Name: "provuser", Hash: "$2a$10$YLiO8U21sX1uhZamTLJXHuxgVC0Z/GKISibrKCLohPgtG7yIxSk4C", Role: user.RoleUser},
+		},
+	})
+	require.Nil(t, err)
+	require.Nil(t, m.Close())
+
+	app, _, _, _ := newTestApp()
+	err = runUserCommand(app, conf, "--base-url=https://ntfy.example.com", "reset-pass", "provuser")
+	require.Error(t, err)
+	require.Contains(t, err.Error(), "provisioned")
+}
+
 func newTestServerWithAuth(t *testing.T) (s *server.Server, conf *server.Config, port int) {
 	configFile := filepath.Join(t.TempDir(), "server-dummy.yml")
 	require.Nil(t, os.WriteFile(configFile, []byte(""), 0600)) // Dummy config file to avoid lookup of real server.yml
@@ -128,6 +192,7 @@ func newTestServerWithAuth(t *testing.T) (s *server.Server, conf *server.Config,
 	conf.File = configFile
 	conf.AuthFile = filepath.Join(t.TempDir(), "user.db")
 	conf.AuthDefault = user.PermissionDenyAll
+	conf.AuthAccessCacheEnabled = false
 	s, port = test.StartServerWithConfig(t, conf)
 	return
 }

db/db.go

@@ -0,0 +1,137 @@
+package db
+
+import (
+	"context"
+	"database/sql"
+	"sync/atomic"
+	"time"
+
+	"heckel.io/ntfy/v2/log"
+)
+
+const (
+	tag                            = "db"
+	replicaHealthCheckInitialDelay = 5 * time.Second
+	replicaHealthCheckInterval     = 30 * time.Second
+	replicaHealthCheckTimeout      = 10 * time.Second
+)
+
+// DB wraps a primary *sql.DB and optional read replicas. All standard query/exec methods
+// delegate to the primary. The ReadOnly() method returns a *sql.DB from a healthy replica
+// (round-robin), falling back to the primary if no replicas are configured or all are unhealthy.
+type DB struct {
+	primary  *Host
+	replicas []*Host
+	counter  atomic.Uint64
+	cancel   context.CancelFunc
+}
+
+// New creates a new DB that wraps the given primary and optional replica connections.
+// If replicas is nil or empty, ReadOnly() simply returns the primary.
+// Replicas start unhealthy and are checked immediately by a background goroutine.
+func New(primary *Host, replicas []*Host) *DB {
+	ctx, cancel := context.WithCancel(context.Background())
+	d := &DB{
+		primary:  primary,
+		replicas: replicas,
+		cancel:   cancel,
+	}
+	if len(d.replicas) > 0 {
+		go d.healthCheckLoop(ctx)
+	}
+	return d
+}
+
+// Query delegates to the primary database.
+func (d *DB) Query(query string, args ...any) (*sql.Rows, error) {
+	return d.primary.DB.Query(query, args...)
+}
+
+// QueryRow delegates to the primary database.
+func (d *DB) QueryRow(query string, args ...any) *sql.Row {
+	return d.primary.DB.QueryRow(query, args...)
+}
+
+// Exec delegates to the primary database.
+func (d *DB) Exec(query string, args ...any) (sql.Result, error) {
+	return d.primary.DB.Exec(query, args...)
+}
+
+// Begin delegates to the primary database.
+func (d *DB) Begin() (*sql.Tx, error) {
+	return d.primary.DB.Begin()
+}
+
+// Ping delegates to the primary database.
+func (d *DB) Ping() error {
+	return d.primary.DB.Ping()
+}
+
+// Primary returns the underlying primary *sql.DB. This is only intended for
+// one-time schema setup during store initialization, not for regular queries.
+func (d *DB) Primary() *sql.DB {
+	return d.primary.DB
+}
+
+// ReadOnly returns a *sql.DB suitable for read-only queries. It round-robins across healthy
+// replicas. If all replicas are unhealthy or none are configured, the primary is returned.
+func (d *DB) ReadOnly() *sql.DB {
+	if len(d.replicas) == 0 {
+		return d.primary.DB
+	}
+	n := len(d.replicas)
+	start := int(d.counter.Add(1) - 1)
+	for i := 0; i < n; i++ {
+		r := d.replicas[(start+i)%n]
+		if r.healthy.Load() {
+			return r.DB
+		}
+	}
+	return d.primary.DB
+}
+
+// Close closes the primary database and all replicas, and stops the health-check goroutine.
+func (d *DB) Close() error {
+	d.cancel()
+	for _, r := range d.replicas {
+		r.DB.Close()
+	}
+	return d.primary.DB.Close()
+}
+
+// healthCheckLoop checks replicas immediately, then periodically on a ticker.
+func (d *DB) healthCheckLoop(ctx context.Context) {
+	select {
+	case <-ctx.Done():
+		return
+	case <-time.After(replicaHealthCheckInitialDelay):
+		d.checkReplicas(ctx)
+	}
+	for {
+		select {
+		case <-ctx.Done():
+			return
+		case <-time.After(replicaHealthCheckInterval):
+			d.checkReplicas(ctx)
+		}
+	}
+}
+
+// checkReplicas pings each replica with a timeout and updates its health status.
+func (d *DB) checkReplicas(ctx context.Context) {
+	for _, r := range d.replicas {
+		wasHealthy := r.healthy.Load()
+		pingCtx, cancel := context.WithTimeout(ctx, replicaHealthCheckTimeout)
+		err := r.DB.PingContext(pingCtx)
+		cancel()
+		if err != nil {
+			r.healthy.Store(false)
+			log.Tag(tag).Error("Database replica %s is unhealthy: %s", r.Addr, err)
+		} else {
+			r.healthy.Store(true)
+			if !wasHealthy {
+				log.Tag(tag).Info("Database replica %s is healthy", r.Addr)
+			}
+		}
+	}
+}

db/pg/pg.go

@@ -0,0 +1,120 @@
+package pg
+
+import (
+	"database/sql"
+	"fmt"
+	"net/url"
+	"strconv"
+	"strings"
+	"time"
+
+	_ "github.com/jackc/pgx/v5/stdlib" // PostgreSQL driver
+
+	"heckel.io/ntfy/v2/db"
+)
+
+// Open opens a PostgreSQL connection pool for a primary database. It pings the database
+// to verify connectivity before returning.
+func Open(dsn string) (*db.Host, error) {
+	d, err := open(dsn)
+	if err != nil {
+		return nil, fmt.Errorf("failed to open database: %w", err)
+	}
+	if err := d.DB.Ping(); err != nil {
+		return nil, fmt.Errorf("database ping failed on %v: %w", d.Addr, err)
+	}
+	return d, nil
+}
+
+// OpenReplica opens a PostgreSQL connection pool for a read replica. Unlike Open, it does
+// not ping the database, since replicas are health-checked in the background by db.DB.
+func OpenReplica(dsn string) (*db.Host, error) {
+	return open(dsn)
+}
+
+// open opens a PostgreSQL database connection pool from a DSN string. It supports custom
+// query parameters for pool configuration: pool_max_conns (default 10), pool_max_idle_conns,
+// pool_conn_max_lifetime, and pool_conn_max_idle_time. These parameters are stripped from
+// the DSN before passing it to the driver.
+func open(dsn string) (*db.Host, error) {
+	u, err := url.Parse(dsn)
+	if err != nil {
+		return nil, fmt.Errorf("invalid database URL: %w", err)
+	}
+	switch u.Scheme {
+	case "postgres", "postgresql":
+		// OK
+	default:
+		return nil, fmt.Errorf("invalid database URL scheme %q, must be \"postgres\" or \"postgresql\" (URL: %s)", u.Scheme, censorPassword(u))
+	}
+	q := u.Query()
+	maxOpenConns, err := extractIntParam(q, "pool_max_conns", 10)
+	if err != nil {
+		return nil, err
+	}
+	maxIdleConns, err := extractIntParam(q, "pool_max_idle_conns", 0)
+	if err != nil {
+		return nil, err
+	}
+	connMaxLifetime, err := extractDurationParam(q, "pool_conn_max_lifetime", 0)
+	if err != nil {
+		return nil, err
+	}
+	connMaxIdleTime, err := extractDurationParam(q, "pool_conn_max_idle_time", 0)
+	if err != nil {
+		return nil, err
+	}
+	u.RawQuery = q.Encode()
+	d, err := sql.Open("pgx", u.String())
+	if err != nil {
+		return nil, err
+	}
+	d.SetMaxOpenConns(maxOpenConns)
+	if maxIdleConns > 0 {
+		d.SetMaxIdleConns(maxIdleConns)
+	}
+	if connMaxLifetime > 0 {
+		d.SetConnMaxLifetime(connMaxLifetime)
+	}
+	if connMaxIdleTime > 0 {
+		d.SetConnMaxIdleTime(connMaxIdleTime)
+	}
+	return &db.Host{
+		Addr: u.Host,
+		DB:   d,
+	}, nil
+}
+
+func extractIntParam(q url.Values, key string, defaultValue int) (int, error) {
+	s := q.Get(key)
+	if s == "" {
+		return defaultValue, nil
+	}
+	q.Del(key)
+	v, err := strconv.Atoi(s)
+	if err != nil {
+		return 0, fmt.Errorf("invalid %s value %q: %w", key, s, err)
+	}
+	return v, nil
+}
+
+// censorPassword returns a string representation of the URL with the password replaced by "*****".
+func censorPassword(u *url.URL) string {
+	if password, hasPassword := u.User.Password(); hasPassword {
+		return strings.Replace(u.String(), ":"+password+"@", ":*****@", 1)
+	}
+	return u.String()
+}
+
+func extractDurationParam(q url.Values, key string, defaultValue time.Duration) (time.Duration, error) {
+	s := q.Get(key)
+	if s == "" {
+		return defaultValue, nil
+	}
+	q.Del(key)
+	d, err := time.ParseDuration(s)
+	if err != nil {
+		return 0, fmt.Errorf("invalid %s value %q: %w", key, s, err)
+	}
+	return d, nil
+}

db/pg/pg_test.go

@@ -0,0 +1,53 @@
+package pg
+
+import (
+	"net/url"
+	"testing"
+
+	"github.com/stretchr/testify/require"
+)
+
+func TestOpen_InvalidScheme(t *testing.T) {
+	_, err := Open("postgresql+psycopg2://user:pass@localhost/db")
+	require.Error(t, err)
+	require.Contains(t, err.Error(), `invalid database URL scheme "postgresql+psycopg2"`)
+	require.Contains(t, err.Error(), "*****")
+	require.NotContains(t, err.Error(), "pass")
+}
+
+func TestOpen_InvalidURL(t *testing.T) {
+	_, err := Open("not a valid url\x00")
+	require.Error(t, err)
+	require.Contains(t, err.Error(), "invalid database URL")
+}
+
+func TestCensorPassword(t *testing.T) {
+	tests := []struct {
+		name     string
+		url      string
+		expected string
+	}{
+		{
+			name:     "with password",
+			url:      "postgres://user:secret@localhost/db",
+			expected: "postgres://user:*****@localhost/db",
+		},
+		{
+			name:     "without password",
+			url:      "postgres://localhost/db",
+			expected: "postgres://localhost/db",
+		},
+		{
+			name:     "user only",
+			url:      "postgres://user@localhost/db",
+			expected: "postgres://user@localhost/db",
+		},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			u, err := url.Parse(tt.url)
+			require.NoError(t, err)
+			require.Equal(t, tt.expected, censorPassword(u))
+		})
+	}
+}

db/test/test.go

@@ -0,0 +1,64 @@
+package dbtest
+
+import (
+	"fmt"
+	"net/url"
+	"os"
+	"testing"
+
+	"github.com/stretchr/testify/require"
+	"heckel.io/ntfy/v2/db"
+	"heckel.io/ntfy/v2/db/pg"
+	"heckel.io/ntfy/v2/util"
+)
+
+const testPoolMaxConns = "2"
+
+// CreateTestPostgresSchema creates a temporary PostgreSQL schema and returns the DSN pointing to it.
+// It registers a cleanup function to drop the schema when the test finishes.
+// If NTFY_TEST_DATABASE_URL is not set, the test is skipped.
+func CreateTestPostgresSchema(t *testing.T) string {
+	t.Helper()
+	dsn := os.Getenv("NTFY_TEST_DATABASE_URL")
+	if dsn == "" {
+		t.Skip("NTFY_TEST_DATABASE_URL not set")
+	}
+	schema := fmt.Sprintf("test_%s", util.RandomString(10))
+	u, err := url.Parse(dsn)
+	require.Nil(t, err)
+	q := u.Query()
+	q.Set("pool_max_conns", testPoolMaxConns)
+	u.RawQuery = q.Encode()
+	dsn = u.String()
+	setupHost, err := pg.Open(dsn)
+	require.Nil(t, err)
+	_, err = setupHost.DB.Exec(fmt.Sprintf("CREATE SCHEMA %s", schema))
+	require.Nil(t, err)
+	require.Nil(t, setupHost.DB.Close())
+	q.Set("search_path", schema)
+	u.RawQuery = q.Encode()
+	schemaDSN := u.String()
+	t.Cleanup(func() {
+		cleanHost, err := pg.Open(dsn)
+		if err == nil {
+			cleanHost.DB.Exec(fmt.Sprintf("DROP SCHEMA %s CASCADE", schema))
+			cleanHost.DB.Close()
+		}
+	})
+	return schemaDSN
+}
+
+// CreateTestPostgres creates a temporary PostgreSQL schema and returns an open *db.DB connection to it.
+// It registers cleanup functions to close the DB and drop the schema when the test finishes.
+// If NTFY_TEST_DATABASE_URL is not set, the test is skipped.
+func CreateTestPostgres(t *testing.T) *db.DB {
+	t.Helper()
+	schemaDSN := CreateTestPostgresSchema(t)
+	testHost, err := pg.Open(schemaDSN)
+	require.Nil(t, err)
+	d := db.New(testHost, nil)
+	t.Cleanup(func() {
+		d.Close()
+	})
+	return d
+}

db/types.go

@@ -0,0 +1,25 @@
+package db
+
+import (
+	"database/sql"
+	"sync/atomic"
+)
+
+// Beginner is an interface for types that can begin a database transaction.
+// Both *sql.DB and *DB implement this.
+type Beginner interface {
+	Begin() (*sql.Tx, error)
+}
+
+// Querier is an interface for types that can execute SQL queries.
+// *sql.DB, *sql.Tx, and *DB all implement this.
+type Querier interface {
+	Query(query string, args ...any) (*sql.Rows, error)
+}
+
+// Host pairs a *sql.DB with the host:port it was opened against.
+type Host struct {
+	Addr    string // "host:port"
+	DB      *sql.DB
+	healthy atomic.Bool
+}

db/util.go

@@ -0,0 +1,36 @@
+package db
+
+import "database/sql"
+
+// ExecTx executes a function within a database transaction. If the function returns an error,
+// the transaction is rolled back. Otherwise, the transaction is committed.
+func ExecTx(db Beginner, f func(tx *sql.Tx) error) error {
+	tx, err := db.Begin()
+	if err != nil {
+		return err
+	}
+	defer tx.Rollback()
+	if err := f(tx); err != nil {
+		return err
+	}
+	return tx.Commit()
+}
+
+// QueryTx executes a function within a database transaction and returns the result. If the function
+// returns an error, the transaction is rolled back. Otherwise, the transaction is committed.
+func QueryTx[T any](db Beginner, f func(tx *sql.Tx) (T, error)) (T, error) {
+	tx, err := db.Begin()
+	if err != nil {
+		var zero T
+		return zero, err
+	}
+	defer tx.Rollback()
+	t, err := f(tx)
+	if err != nil {
+		return t, err
+	}
+	if err := tx.Commit(); err != nil {
+		return t, err
+	}
+	return t, nil
+}

docs/config.md

@@ -53,6 +53,16 @@ Here are a few working sample configs using a `/etc/ntfy/server.yml` file:
     behind-proxy: true
     ```
 
+=== "server.yml (PostgreSQL, behind proxy)"
+    ``` yaml
+    base-url: "https://ntfy.example.com"
+    listen-http: ":2586"
+    database-url: "postgres://ntfy:mypassword@db.example.com:5432/ntfy?sslmode=require"
+    attachment-cache-dir: "/var/cache/ntfy/attachments"
+    behind-proxy: true
+    auth-default-access: "deny-all"
+    ```
+
 === "server.yml (ntfy.sh config)"
     ``` yaml
     # All the things: Behind a proxy, Firebase, cache, attachments, 
@@ -125,16 +135,357 @@ using Docker Compose (i.e. `docker-compose.yml`):
 	    command: serve
     ```
 
+## Config generator
+
+This generator helps you configure your self-hosted ntfy instance. It's not fully featured, but it is a good starting point. Please refer to the relevant sections in the doc for more details.
+
+<div style="text-align: center;">
+<button type="button" id="cg-open-btn" class="cg-open-btn">Open config generator</button>
+</div>
+
+<figure markdown style="padding-left: 50px; padding-right: 50px; cursor: pointer;" onclick="document.getElementById('cg-open-btn').click();">
+  <img src="../../static/img/config-generator.png"/>
+  <figcaption>The config generator helps you create a custom config for your self-hosted ntfy instance. Click to open.</figcaption>
+</figure>
+
+<div id="cg-modal" class="cg-modal" style="display:none">
+<div class="cg-modal-backdrop"></div>
+<div class="cg-modal-dialog">
+<div class="cg-modal-header">
+<div class="cg-modal-header-left">
+<span class="cg-modal-title">Config generator</span><span class="cg-badge-beta">BETA</span>
+<span class="cg-modal-desc">This generator helps you configure your self-hosted ntfy instance. It's not fully featured, but it is a good starting point.</span>
+</div>
+<div class="cg-modal-header-actions">
+<button type="button" id="cg-reset-btn" class="cg-modal-reset" title="Reset all values">Reset</button>
+<button type="button" id="cg-close-btn" class="cg-modal-close" title="Close">&times;</button>
+</div>
+</div>
+<div class="cg-modal-body">
+<div class="cg-mobile-toggle">
+  <button class="cg-mobile-toggle-btn active" data-show="left">Edit</button>
+  <button class="cg-mobile-toggle-btn" data-show="right">Preview</button>
+</div>
+<div id="cg-left">
+<div class="cg-nav">
+<div class="cg-nav-tab active" data-panel="cg-panel-general">General</div>
+<div class="cg-nav-tab cg-hidden" data-panel="cg-panel-database" id="cg-nav-database">Database</div>
+<div class="cg-nav-tab cg-hidden" data-panel="cg-panel-auth" id="cg-nav-auth">Users</div>
+<div class="cg-nav-tab cg-hidden" data-panel="cg-panel-cache" id="cg-nav-cache">Message Cache</div>
+<div class="cg-nav-tab cg-hidden" data-panel="cg-panel-attach" id="cg-nav-attach">Attachments</div>
+<div class="cg-nav-tab cg-hidden" data-panel="cg-panel-webpush" id="cg-nav-webpush">Web Push</div>
+<div class="cg-nav-tab cg-hidden" data-panel="cg-panel-email" id="cg-nav-email">Email</div>
+</div>
+<div class="cg-panels">
+<div class="cg-panel active" id="cg-panel-general">
+<div class="cg-field cg-inline-field">
+<label>What URL will ntfy be reachable on?</label>
+<input type="text" data-key="base-url" placeholder="https://ntfy.example.com">
+</div>
+<div class="cg-field cg-inline-field">
+<label>Will ntfy run behind a proxy (e.g. nginx, Caddy)? <a href="/config/#behind-a-proxy-tls-etc" target="_blank" class="cg-help"><svg xmlns="http://www.w3.org/2000/svg" width="14" height="14" fill="currentColor" viewBox="0 0 16 16"><path d="M16 8A8 8 0 1 1 0 8a8 8 0 0 1 16 0M5.496 6.033h.825c.138 0 .248-.113.266-.25.09-.656.54-1.134 1.342-1.134.686 0 1.314.343 1.314 1.168 0 .635-.374.927-.965 1.371-.673.489-1.206 1.06-1.168 1.987l.003.217a.25.25 0 0 0 .25.246h.811a.25.25 0 0 0 .25-.25v-.105c0-.718.273-.927 1.01-1.486.609-.463 1.244-.977 1.244-2.056 0-1.511-1.276-2.241-2.673-2.241-1.267 0-2.655.59-2.75 2.286a.237.237 0 0 0 .241.247m2.325 6.443c.61 0 1.029-.394 1.029-.927 0-.552-.42-.94-1.029-.94-.584 0-1.009.388-1.009.94 0 .533.425.927 1.01.927z"/></svg></a></label>
+<div class="cg-btn-group">
+<label><input type="radio" name="cg-proxy" value="no" checked><span>No</span></label>
+<label><input type="radio" name="cg-proxy" value="yes"><span>Yes</span></label>
+</div>
+</div>
+<div class="cg-field cg-inline-field">
+<label>Will this ntfy server be open or private? <a href="/config/#access-control" target="_blank" class="cg-help"><svg xmlns="http://www.w3.org/2000/svg" width="14" height="14" fill="currentColor" viewBox="0 0 16 16"><path d="M16 8A8 8 0 1 1 0 8a8 8 0 0 1 16 0M5.496 6.033h.825c.138 0 .248-.113.266-.25.09-.656.54-1.134 1.342-1.134.686 0 1.314.343 1.314 1.168 0 .635-.374.927-.965 1.371-.673.489-1.206 1.06-1.168 1.987l.003.217a.25.25 0 0 0 .25.246h.811a.25.25 0 0 0 .25-.25v-.105c0-.718.273-.927 1.01-1.486.609-.463 1.244-.977 1.244-2.056 0-1.511-1.276-2.241-2.673-2.241-1.267 0-2.655.59-2.75 2.286a.237.237 0 0 0 .241.247m2.325 6.443c.61 0 1.029-.394 1.029-.927 0-.552-.42-.94-1.029-.94-.584 0-1.009.388-1.009.94 0 .533.425.927 1.01.927z"/></svg></a></label>
+<div class="cg-btn-group">
+<label><input type="radio" name="cg-server-type" value="open" checked><span>Open</span></label>
+<label><input type="radio" name="cg-server-type" value="private"><span>Private</span></label>
+<label><input type="radio" name="cg-server-type" value="custom"><span>Custom</span></label>
+</div>
+</div>
+<div class="cg-field cg-inline-field">
+<label>Will iOS/iPhone users use this server? <a href="/config/#ios-instant-notifications" target="_blank" class="cg-help"><svg xmlns="http://www.w3.org/2000/svg" width="14" height="14" fill="currentColor" viewBox="0 0 16 16"><path d="M16 8A8 8 0 1 1 0 8a8 8 0 0 1 16 0M5.496 6.033h.825c.138 0 .248-.113.266-.25.09-.656.54-1.134 1.342-1.134.686 0 1.314.343 1.314 1.168 0 .635-.374.927-.965 1.371-.673.489-1.206 1.06-1.168 1.987l.003.217a.25.25 0 0 0 .25.246h.811a.25.25 0 0 0 .25-.25v-.105c0-.718.273-.927 1.01-1.486.609-.463 1.244-.977 1.244-2.056 0-1.511-1.276-2.241-2.673-2.241-1.267 0-2.655.59-2.75 2.286a.237.237 0 0 0 .241.247m2.325 6.443c.61 0 1.029-.394 1.029-.927 0-.552-.42-.94-1.029-.94-.584 0-1.009.388-1.009.94 0 .533.425.927 1.01.927z"/></svg></a></label>
+<div class="cg-btn-group">
+<label><input type="radio" name="cg-ios" value="no" checked><span>No</span></label>
+<label><input type="radio" name="cg-ios" value="yes"><span>Yes</span></label>
+</div>
+</div>
+<div class="cg-field cg-inline-field">
+<label>Do you want to use ntfy as a UnifiedPush distributor? <a href="/config/#example-unifiedpush" target="_blank" class="cg-help"><svg xmlns="http://www.w3.org/2000/svg" width="14" height="14" fill="currentColor" viewBox="0 0 16 16"><path d="M16 8A8 8 0 1 1 0 8a8 8 0 0 1 16 0M5.496 6.033h.825c.138 0 .248-.113.266-.25.09-.656.54-1.134 1.342-1.134.686 0 1.314.343 1.314 1.168 0 .635-.374.927-.965 1.371-.673.489-1.206 1.06-1.168 1.987l.003.217a.25.25 0 0 0 .25.246h.811a.25.25 0 0 0 .25-.25v-.105c0-.718.273-.927 1.01-1.486.609-.463 1.244-.977 1.244-2.056 0-1.511-1.276-2.241-2.673-2.241-1.267 0-2.655.59-2.75 2.286a.237.237 0 0 0 .241.247m2.325 6.443c.61 0 1.029-.394 1.029-.927 0-.552-.42-.94-1.029-.94-.584 0-1.009.388-1.009.94 0 .533.425.927 1.01.927z"/></svg></a></label>
+<div class="cg-btn-group">
+<label><input type="radio" name="cg-unifiedpush" value="no" checked><span>No</span></label>
+<label><input type="radio" name="cg-unifiedpush" value="yes"><span>Yes</span></label>
+</div>
+</div>
+<div class="cg-field">
+<label>Which features do you want to enable?</label>
+<div class="cg-feature-grid">
+<div class="cg-feature-row"><label><input type="checkbox" id="cg-feat-auth"> User management and access control</label><button type="button" class="cg-btn-configure cg-hidden" data-panel="cg-panel-auth">Configure</button></div>
+<div class="cg-feature-row"><label><input type="checkbox" id="cg-feat-cache"> Persistent message cache</label><button type="button" class="cg-btn-configure cg-hidden" data-panel="cg-panel-cache">Configure</button></div>
+<div class="cg-feature-row"><label><input type="checkbox" id="cg-feat-attach"> Attachments</label><button type="button" class="cg-btn-configure cg-hidden" data-panel="cg-panel-attach">Configure</button></div>
+<div class="cg-feature-row"><label><input type="checkbox" id="cg-feat-webpush"> Web push</label><button type="button" class="cg-btn-configure cg-hidden" data-panel="cg-panel-webpush">Configure</button></div>
+<div class="cg-feature-row"><label><input type="checkbox" id="cg-feat-smtp-out"> Email notifications</label><button type="button" class="cg-btn-configure cg-hidden" data-panel="cg-panel-email">Configure</button></div>
+<div class="cg-feature-row"><label><input type="checkbox" id="cg-feat-smtp-in"> Email publishing</label><button type="button" class="cg-btn-configure cg-hidden" data-panel="cg-panel-email">Configure</button></div>
+</div>
+</div>
+<div class="cg-field cg-inline-field cg-hidden" id="cg-wizard-db">
+<label>Which database backend would you like to use? <a href="/config/#database-options" target="_blank" class="cg-help"><svg xmlns="http://www.w3.org/2000/svg" width="14" height="14" fill="currentColor" viewBox="0 0 16 16"><path d="M16 8A8 8 0 1 1 0 8a8 8 0 0 1 16 0M5.496 6.033h.825c.138 0 .248-.113.266-.25.09-.656.54-1.134 1.342-1.134.686 0 1.314.343 1.314 1.168 0 .635-.374.927-.965 1.371-.673.489-1.206 1.06-1.168 1.987l.003.217a.25.25 0 0 0 .25.246h.811a.25.25 0 0 0 .25-.25v-.105c0-.718.273-.927 1.01-1.486.609-.463 1.244-.977 1.244-2.056 0-1.511-1.276-2.241-2.673-2.241-1.267 0-2.655.59-2.75 2.286a.237.237 0 0 0 .241.247m2.325 6.443c.61 0 1.029-.394 1.029-.927 0-.552-.42-.94-1.029-.94-.584 0-1.009.388-1.009.94 0 .533.425.927 1.01.927z"/></svg></a></label>
+<div class="cg-btn-group">
+<label><input type="radio" name="cg-db-type" value="sqlite" checked><span>SQLite</span></label>
+<label><input type="radio" name="cg-db-type" value="postgres"><span>PostgreSQL</span></label>
+</div>
+</div>
+</div>
+<div class="cg-panel" id="cg-panel-auth">
+<div class="cg-panel-desc">Configure user management, access control, and provisioned users/ACLs. See <a href="/config/#access-control" target="_blank">access control</a> for details.</div>
+<div class="cg-field cg-inline-field">
+<label>Where should the user database be stored?</label>
+<input type="text" data-key="auth-file" placeholder="/var/lib/ntfy/auth.db">
+</div>
+<div class="cg-field cg-inline-field">
+<label>What should the default access policy be? <a href="/config/#access-control" target="_blank" class="cg-help"><svg xmlns="http://www.w3.org/2000/svg" width="14" height="14" fill="currentColor" viewBox="0 0 16 16"><path d="M16 8A8 8 0 1 1 0 8a8 8 0 0 1 16 0M5.496 6.033h.825c.138 0 .248-.113.266-.25.09-.656.54-1.134 1.342-1.134.686 0 1.314.343 1.314 1.168 0 .635-.374.927-.965 1.371-.673.489-1.206 1.06-1.168 1.987l.003.217a.25.25 0 0 0 .25.246h.811a.25.25 0 0 0 .25-.25v-.105c0-.718.273-.927 1.01-1.486.609-.463 1.244-.977 1.244-2.056 0-1.511-1.276-2.241-2.673-2.241-1.267 0-2.655.59-2.75 2.286a.237.237 0 0 0 .241.247m2.325 6.443c.61 0 1.029-.394 1.029-.927 0-.552-.42-.94-1.029-.94-.584 0-1.009.388-1.009.94 0 .533.425.927 1.01.927z"/></svg></a></label>
+<select id="cg-default-access-select">
+<option value="read-write" selected>Read &amp; Write</option>
+<option value="read-only">Read Only</option>
+<option value="write-only">Write Only</option>
+<option value="deny-all">Deny All</option>
+</select>
+</div>
+<div class="cg-field cg-inline-field">
+<label>Should login to the web app be enabled?</label>
+<div class="cg-btn-group">
+<label><input type="radio" name="cg-login-mode" value="disabled" checked><span>Disabled</span></label>
+<label><input type="radio" name="cg-login-mode" value="enabled"><span>Enabled</span></label>
+<label><input type="radio" name="cg-login-mode" value="required"><span>Required</span></label>
+</div>
+</div>
+<div class="cg-field cg-inline-field">
+<label>Should it be possible to sign up via the web app?</label>
+<div class="cg-btn-group">
+<label><input type="radio" name="cg-enable-signup" value="no" checked><span>No</span></label>
+<label><input type="radio" name="cg-enable-signup" value="yes"><span>Yes</span></label>
+</div>
+</div>
+<input type="hidden" data-key="auth-default-access">
+<input type="checkbox" data-key="enable-login" id="cg-enable-login-hidden" style="display:none">
+<input type="checkbox" data-key="require-login" id="cg-require-login-hidden" style="display:none">
+<input type="checkbox" data-key="enable-signup" id="cg-enable-signup-hidden" style="display:none">
+<div class="cg-field">
+<label>Provisioned users <a href="/config/#users-and-roles" target="_blank" class="cg-help"><svg xmlns="http://www.w3.org/2000/svg" width="14" height="14" fill="currentColor" viewBox="0 0 16 16"><path d="M16 8A8 8 0 1 1 0 8a8 8 0 0 1 16 0M5.496 6.033h.825c.138 0 .248-.113.266-.25.09-.656.54-1.134 1.342-1.134.686 0 1.314.343 1.314 1.168 0 .635-.374.927-.965 1.371-.673.489-1.206 1.06-1.168 1.987l.003.217a.25.25 0 0 0 .25.246h.811a.25.25 0 0 0 .25-.25v-.105c0-.718.273-.927 1.01-1.486.609-.463 1.244-.977 1.244-2.056 0-1.511-1.276-2.241-2.673-2.241-1.267 0-2.655.59-2.75 2.286a.237.237 0 0 0 .241.247m2.325 6.443c.61 0 1.029-.394 1.029-.927 0-.552-.42-.94-1.029-.94-.584 0-1.009.388-1.009.94 0 .533.425.927 1.01.927z"/></svg></a></label>
+<div class="cg-repeatable-container" id="cg-auth-users-container"></div>
+<button type="button" class="cg-btn-add" data-add-type="user">+ Add user</button>
+</div>
+<div class="cg-field">
+<label>Provisioned ACLs <a href="/config/#access-control-list-acl" target="_blank" class="cg-help"><svg xmlns="http://www.w3.org/2000/svg" width="14" height="14" fill="currentColor" viewBox="0 0 16 16"><path d="M16 8A8 8 0 1 1 0 8a8 8 0 0 1 16 0M5.496 6.033h.825c.138 0 .248-.113.266-.25.09-.656.54-1.134 1.342-1.134.686 0 1.314.343 1.314 1.168 0 .635-.374.927-.965 1.371-.673.489-1.206 1.06-1.168 1.987l.003.217a.25.25 0 0 0 .25.246h.811a.25.25 0 0 0 .25-.25v-.105c0-.718.273-.927 1.01-1.486.609-.463 1.244-.977 1.244-2.056 0-1.511-1.276-2.241-2.673-2.241-1.267 0-2.655.59-2.75 2.286a.237.237 0 0 0 .241.247m2.325 6.443c.61 0 1.029-.394 1.029-.927 0-.552-.42-.94-1.029-.94-.584 0-1.009.388-1.009.94 0 .533.425.927 1.01.927z"/></svg></a></label>
+<div class="cg-repeatable-container" id="cg-auth-acls-container"></div>
+<button type="button" class="cg-btn-add" data-add-type="acl">+ Add ACL</button>
+</div>
+<div class="cg-field">
+<label>Provisioned tokens <a href="/config/#access-tokens" target="_blank" class="cg-help"><svg xmlns="http://www.w3.org/2000/svg" width="14" height="14" fill="currentColor" viewBox="0 0 16 16"><path d="M16 8A8 8 0 1 1 0 8a8 8 0 0 1 16 0M5.496 6.033h.825c.138 0 .248-.113.266-.25.09-.656.54-1.134 1.342-1.134.686 0 1.314.343 1.314 1.168 0 .635-.374.927-.965 1.371-.673.489-1.206 1.06-1.168 1.987l.003.217a.25.25 0 0 0 .25.246h.811a.25.25 0 0 0 .25-.25v-.105c0-.718.273-.927 1.01-1.486.609-.463 1.244-.977 1.244-2.056 0-1.511-1.276-2.241-2.673-2.241-1.267 0-2.655.59-2.75 2.286a.237.237 0 0 0 .241.247m2.325 6.443c.61 0 1.029-.394 1.029-.927 0-.552-.42-.94-1.029-.94-.584 0-1.009.388-1.009.94 0 .533.425.927 1.01.927z"/></svg></a></label>
+<div class="cg-repeatable-container" id="cg-auth-tokens-container"></div>
+<button type="button" class="cg-btn-add" data-add-type="token">+ Add token</button>
+</div>
+</div>
+<div class="cg-panel" id="cg-panel-cache">
+<div class="cg-panel-desc">Configure the message cache to allow devices to retrieve missed notifications. See <a href="/config/#message-cache" target="_blank">message cache</a> for details.</div>
+<div class="cg-field cg-inline-field" id="cg-cache-file-field">
+<label>Where should the cache be stored?</label>
+<input type="text" data-key="cache-file" placeholder="/var/cache/ntfy/cache.db">
+</div>
+<div class="cg-field cg-inline-field">
+<label>How long should messages be cached?</label>
+<input type="text" data-key="cache-duration" placeholder="12h">
+</div>
+</div>
+<div class="cg-panel" id="cg-panel-attach">
+<div class="cg-panel-desc">Allow users to upload and attach files to notifications. See <a href="/config/#attachments" target="_blank">attachments</a> for details.</div>
+<div class="cg-field cg-inline-field">
+<label>Where should attachments be stored?</label>
+<input type="text" data-key="attachment-cache-dir" placeholder="/var/cache/ntfy/attachments">
+</div>
+<div class="cg-field cg-inline-field">
+<label>Max file size per attachment?</label>
+<input type="text" data-key="attachment-file-size-limit" placeholder="15M">
+</div>
+<div class="cg-field cg-inline-field">
+<label>Total attachment storage limit?</label>
+<input type="text" data-key="attachment-total-size-limit" placeholder="5G">
+</div>
+<div class="cg-field cg-inline-field">
+<label>How long before attachments expire?</label>
+<input type="text" data-key="attachment-expiry-duration" placeholder="3h">
+</div>
+</div>
+<div class="cg-panel" id="cg-panel-webpush">
+<div class="cg-panel-desc">Enable browser push notifications via the Web Push API. VAPID keys are generated automatically. See <a href="/config/#web-push" target="_blank">web push</a> for details.</div>
+<div class="cg-field cg-inline-field">
+<label>Where should web push data be stored?</label>
+<input type="text" data-key="web-push-file" placeholder="/var/lib/ntfy/webpush.db">
+</div>
+<div class="cg-field cg-inline-field">
+<label>Contact email address</label>
+<input type="text" data-key="web-push-email-address" placeholder="admin@example.com">
+</div>
+<div class="cg-field cg-inline-field">
+<label>Private key</label>
+<input type="text" data-key="web-push-private-key" placeholder="Auto-generated" readonly>
+</div>
+<div class="cg-field cg-inline-field">
+<label>Public key</label>
+<input type="text" data-key="web-push-public-key" placeholder="Auto-generated" readonly>
+</div>
+<div class="cg-field cg-inline-field">
+<label></label>
+<button type="button" id="cg-regen-keys" class="cg-btn-add">Regenerate keys</button>
+</div>
+</div>
+<div class="cg-panel" id="cg-panel-email">
+<div class="cg-panel-desc">Configure outgoing email notifications and/or incoming email publishing. See <a href="/config/#e-mail-notifications" target="_blank">email notifications</a> and <a href="/config/#e-mail-publishing" target="_blank">email publishing</a> for details.</div>
+<div id="cg-email-out-section" class="cg-hidden">
+<div class="cg-field"><label><strong>Outgoing (notifications)</strong></label></div>
+<div class="cg-field cg-inline-field">
+<label>SMTP server address</label>
+<input type="text" data-key="smtp-sender-addr" placeholder="smtp.example.com:587">
+</div>
+<div class="cg-field cg-inline-field">
+<label>Sender email</label>
+<input type="text" data-key="smtp-sender-from" placeholder="ntfy@example.com">
+</div>
+<div class="cg-field cg-inline-field">
+<label>SMTP username</label>
+<input type="text" data-key="smtp-sender-user" placeholder="Username">
+</div>
+<div class="cg-field cg-inline-field">
+<label>SMTP password</label>
+<input type="password" data-key="smtp-sender-pass" placeholder="Password">
+</div>
+<div class="cg-field cg-inline-field">
+<label>Require email verification</label>
+<div class="cg-btn-group">
+<label><input type="radio" name="cg-smtp-sender-verify" value="no" checked><span>No</span></label>
+<label><input type="radio" name="cg-smtp-sender-verify" value="yes"><span>Yes</span></label>
+</div>
+</div>
+<input type="checkbox" data-key="smtp-sender-verify" id="cg-smtp-sender-verify-hidden" style="display:none">
+</div>
+<div id="cg-email-in-section" class="cg-hidden">
+<div class="cg-field"><label><strong>Incoming (publishing)</strong></label></div>
+<div class="cg-field cg-inline-field">
+<label>Listen address</label>
+<input type="text" data-key="smtp-server-listen" placeholder=":25">
+</div>
+<div class="cg-field cg-inline-field">
+<label>Domain</label>
+<input type="text" data-key="smtp-server-domain" placeholder="ntfy.example.com">
+</div>
+<div class="cg-field cg-inline-field">
+<label>Address prefix</label>
+<input type="text" data-key="smtp-server-addr-prefix" placeholder="ntfy-">
+</div>
+</div>
+</div>
+<div class="cg-panel" id="cg-panel-database">
+<div class="cg-panel-desc">Configure the PostgreSQL connection. See <a href="/config/#postgresql-experimental" target="_blank">PostgreSQL</a> for details.</div>
+<div class="cg-field">
+<label>Database URL</label>
+<input type="text" data-key="database-url" placeholder="postgres://user:pass@host:5432/ntfy">
+</div>
+</div>
+<input type="hidden" data-key="upstream-base-url">
+<input type="checkbox" data-key="behind-proxy" id="cg-behind-proxy" style="display:none">
+</div>
+</div>
+<div id="cg-right">
+<div class="cg-output-tabs">
+<div class="cg-output-tab active" data-format="server-yml">server.yml</div>
+<div class="cg-output-tab" data-format="docker-compose">docker-compose.yml</div>
+<div class="cg-output-tab" data-format="env-vars">Env variables</div>
+<button type="button" id="cg-copy-btn" class="cg-btn-copy" title="Copy to clipboard"><svg xmlns="http://www.w3.org/2000/svg" width="14" height="14" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><rect x="9" y="9" width="13" height="13" rx="2" ry="2"></rect><path d="M5 15H4a2 2 0 0 1-2-2V4a2 2 0 0 1 2-2h9a2 2 0 0 1 2 2v1"></path></svg></button>
+</div>
+<div class="cg-output-wrap">
+<pre><code id="cg-code"><span class="cg-empty-msg">Configure options on the left to generate your config...</span></code></pre>
+<div id="cg-warnings" class="cg-hidden"></div>
+</div>
+</div>
+</div>
+</div>
+</div>
+
+## Database options
+ntfy uses a database for storing messages ([message cache](#message-cache)), users and [access control](#access-control), and [web push](#web-push) subscriptions.
+You can choose between **SQLite** and **PostgreSQL** as the database backend.
+
+### SQLite
+By default, ntfy uses SQLite with separate database files for each store. This is the simplest setup and requires
+no external dependencies:
+
+* `cache-file`: Database file for the [message cache](#message-cache).
+* `auth-file`: Database file for authentication and [access control](#access-control). If set, enables auth.
+* `web-push-file`: Database file for [web push](#web-push) subscriptions.
+
+### PostgreSQL (EXPERIMENTAL)
+As an alternative, you can configure ntfy to use PostgreSQL for **all** database-backed stores by setting the
+`database-url` option to a PostgreSQL connection string.
+
+When `database-url` is set, ntfy will use PostgreSQL for the [message cache](#message-cache),
+[access control](#access-control), and [web push](#web-push) subscriptions instead of SQLite. The `cache-file`,
+`auth-file`, and `web-push-file` options **must not** be set in this case.
+
+Note that setting `database-url` implicitly enables authentication and access control (equivalent to setting
+`auth-file` with SQLite). The default access is `read-write`, so anonymous users can still read and write to all
+topics. To restrict access, set `auth-default-access` to `deny-all` (see [access control](#access-control)).
+
+You can also set this via the environment variable `NTFY_DATABASE_URL` or the command line flag `--database-url`.
+
+To offload read-heavy queries from the primary database, you can optionally configure one or more read replicas
+using the `database-replica-urls` option. When configured, non-critical read-only queries (e.g. fetching messages, checking access permissions, etc)
+are distributed across the replicas using round-robin, while all writes and correctness-critical reads continue to go
+to the primary. If a replica becomes unhealthy, ntfy automatically falls back to the primary until the replica recovers.
+You can also set this via the environment variable `NTFY_DATABASE_REPLICA_URLS` (comma-separated) or the command line
+flag `--database-replica-urls`.
+
+Examples:
+
+=== "Simple"
+    ```yaml
+    database-url: "postgres://user:pass@host:5432/ntfy"
+    ```
+    
+=== "With SSL and pool tuning"
+    ```yaml
+    database-url: "postgres://user:pass@host:5432/ntfy?sslmode=require&pool_max_conns=50&pool_conn_max_idle_time=5m"
+    ```
+    
+=== "With CA certificate"
+    ```yaml
+    database-url: "postgres://user:pass@host:25060/ntfy?sslmode=require&sslrootcert=/etc/ntfy/db-ca-cert.pem&pool_max_conns=30"
+    ```
+
+=== "With read replicas"
+    ```yaml
+    database-url: "postgres://user:pass@primary:5432/ntfy?sslmode=require&sslrootcert=/etc/ntfy/db-ca-cert.pem&pool_max_conns=30"
+    database-replica-urls:
+      - "postgres://user:pass@replica1:5432/ntfy?sslmode=require&sslrootcert=/etc/ntfy/db-ca-cert.pem&pool_max_conns=30"
+      - "postgres://user:pass@replica2:5432/ntfy?sslmode=require&sslrootcert=/etc/ntfy/db-ca-cert.pem&pool_max_conns=30"
+    ```
+
+The database URL supports the standard [PostgreSQL connection parameters](https://www.postgresql.org/docs/current/libpq-connect.html#LIBPQ-PARAMKEYWORDS)
+as query parameters, such as `sslmode`, `connect_timeout`, `sslcert`, `sslkey`, `sslrootcert`, and `application_name`.
+See the [pgx driver documentation](https://pkg.go.dev/github.com/jackc/pgx/v5) for the full list of supported parameters.
+
+In addition, ntfy supports the following custom query parameters to tune the connection pool (these apply to both
+the primary and replica URLs):
+
+| Parameter                 | Default | Description                                                                      |
+|---------------------------|---------|----------------------------------------------------------------------------------|
+| `pool_max_conns`          | 10      | Maximum number of open connections to the database                               |
+| `pool_max_idle_conns`     | -       | Maximum number of idle connections in the pool                                   |
+| `pool_conn_max_lifetime`  | -       | Maximum amount of time a connection may be reused (Go duration, e.g. `5m`, `1h`) |
+| `pool_conn_max_idle_time` | -       | Maximum amount of time a connection may be idle (Go duration, e.g. `30s`, `5m`)  |
+
+
 ## Message cache
 If desired, ntfy can temporarily keep notifications in an in-memory or an on-disk cache. Caching messages for a short period
 of time is important to allow [phones](subscribe/phone.md) and other devices with brittle Internet connections to be able to retrieve
 notifications that they may have missed. 
 
 By default, ntfy keeps messages **in-memory for 12 hours**, which means that **cached messages do not survive an application
-restart**. You can override this behavior using the following config settings:
+restart**. You can override this behavior by setting `cache-file` (SQLite) or `database-url` (PostgreSQL).
 
-* `cache-file`: if set, ntfy will store messages in a SQLite based cache (default is empty, which means in-memory cache).
-  **This is required if you'd like messages to be retained across restarts**.
 * `cache-duration`: defines the duration for which messages are stored in the cache (default is `12h`). 
 
 You can also entirely disable the cache by setting `cache-duration` to `0`. When the cache is disabled, messages are only
@@ -146,30 +497,41 @@ Subscribers can retrieve cached messaging using the [`poll=1` parameter](subscri
 
 ## Attachments
 If desired, you may allow users to upload and [attach files to notifications](publish.md#attachments). To enable
-this feature, you have to simply configure an attachment cache directory and a base URL (`attachment-cache-dir`, `base-url`). 
-Once these options are set and the directory is writable by the server user, you can upload attachments via PUT.
+this feature, you have to configure an attachment storage backend and a base URL (`base-url`). Attachments can be stored
+either on the [local filesystem](#filesystem-storage) or in an [S3-compatible object store](#s3-storage), both using the `attachment-cache-dir` option.
+Once configured, you can upload attachments via PUT.
 
-By default, attachments are stored in the disk-cache **for only 3 hours**. The main reason for this is to avoid legal issues
-and such when hosting user controlled content. Typically, this is more than enough time for the user (or the auto download 
-feature) to download the file. The following config options are relevant to attachments:
+By default, attachments are stored **for only 3 hours**. The main reason for this is to avoid legal issues
+and such when hosting user controlled content. Typically, this is more than enough time for the user (or the auto download
+feature) to download the file. You can increase this time by [purchasing ntfy Pro](https://ntfy.sh/app) via the web app.
+
+The following config options are relevant to attachments:
 
 * `base-url` is the root URL for the ntfy server; this is needed for the generated attachment URLs
-* `attachment-cache-dir` is the cache directory for attached files
-* `attachment-total-size-limit` is the size limit of the on-disk attachment cache (default: 5G)
+* `attachment-cache-dir` is the cache directory for attached files, or an S3 URL for object storage
+* `attachment-total-size-limit` is the size limit of the attachment storage (default: 5G)
 * `attachment-file-size-limit` is the per-file attachment size limit (e.g. 300k, 2M, 100M, default: 15M)
 * `attachment-expiry-duration` is the duration after which uploaded attachments will be deleted (e.g. 3h, 20h, default: 3h)
 
-Here's an example config using mostly the defaults (except for the cache directory, which is empty by default): 
+!!! warning
+    ntfy takes full control over the attachment directory or S3 bucket. Files that match the message ID format without
+    entries in the message table will be deleted. **Do not use a directory or S3 bucket that is also used for something else.** 
+
+Please also refer to the [rate limiting](#rate-limiting) settings below, specifically `visitor-attachment-total-size-limit`
+and `visitor-attachment-daily-bandwidth-limit`. Setting these conservatively is necessary to avoid abuse.
+
+### Filesystem storage
+Here's an example config using the local filesystem for attachment storage:
 
 === "/etc/ntfy/server.yml (minimal)"
     ``` yaml
-    base-url: "https://ntfy.sh"
+    base-url: "https://ntfy.example.com"
     attachment-cache-dir: "/var/cache/ntfy/attachments"
     ```
 
 === "/etc/ntfy/server.yml (all options)"
     ``` yaml
-    base-url: "https://ntfy.sh"
+    base-url: "https://ntfy.example.com"
     attachment-cache-dir: "/var/cache/ntfy/attachments"
     attachment-total-size-limit: "5G"
     attachment-file-size-limit: "15M"
@@ -178,21 +540,87 @@ Here's an example config using mostly the defaults (except for the cache directo
     visitor-attachment-daily-bandwidth-limit: "500M"
     ```
 
-Please also refer to the [rate limiting](#rate-limiting) settings below, specifically `visitor-attachment-total-size-limit`
-and `visitor-attachment-daily-bandwidth-limit`. Setting these conservatively is necessary to avoid abuse.
+### S3 storage
+As an alternative to the local filesystem, you can store attachments in an S3-compatible object store (e.g. [AWS S3](https://aws.amazon.com/s3/),
+[DigitalOcean Spaces](https://www.digitalocean.com/products/spaces)). This is useful for HA/cloud deployments where you don't want to rely on local disk storage. 
+To use an S3-compatible storage for attachments, set `attachment-cache-dir` to an S3 URL with the following format:
+
+```
+s3://ACCESS_KEY:SECRET_KEY@BUCKET[/PREFIX]?region=REGION[&endpoint=ENDPOINT][&disable_http2=true]
+```
+
+Here are a few examples:
+
+=== "/etc/ntfy/server.yml (DigitalOcean Spaces)"
+    ``` yaml
+    base-url: "https://ntfy.example.com"
+    attachment-cache-dir: "s3://ACCESS_KEY:SECRET_KEY@my-bucket/attachments?region=nyc3&endpoint=https://nyc3.digitaloceanspaces.com&disable_http2=true"
+    ```
+
+=== "/etc/ntfy/server.yml (AWS S3)"
+    ``` yaml
+    base-url: "https://ntfy.example.com"
+    attachment-cache-dir: "s3://ACCESS_KEY:SECRET_KEY@my-bucket/attachments?region=us-east-1"
+    ```
+
+=== "/etc/ntfy/server.yml (custom endpoint)"
+    ``` yaml
+    base-url: "https://ntfy.example.com"
+    attachment-cache-dir: "s3://ACCESS_KEY:SECRET_KEY@my-bucket/attachments?region=us-east-1&endpoint=https://s3.example.com"
+    ```
+
+Note that the access key and secret key may have to be URL encoded. For instance, a secret key `YmxhY+mxhYmxhC` (note the `+`) should
+be encoded as `YmxhY%2BmxhYmxhC` (note the `%2B`), so the URL would be `s3://ACCESS_KEY:YmxhY%2BmxhYmxhC@my-bucket/attachments...`.
+
+If you experience upload failures with HTTP/2 stream errors (common with DigitalOcean Spaces and some other S3-compatible providers),
+add `&disable_http2=true` to force HTTP/1.1 connections.
+
+!!! info
+    ntfy.sh is hosted and sponsored by DigitalOcean. I can highly recommend their public cloud offering. It's been rock solid
+    for 4 years. They offer an S3-compatible storage for $5/month and 250 GB of storage, with 1 TiB of bandwidth. 
+    Also, if you **use [this referral link](https://m.do.co/c/442b929528db), you can get $200 credit**.
+
+For AWS S3, the IAM user needs the following permissions on the bucket:
+
+``` json
+{
+    "Version": "2012-10-17",
+    "Statement": [
+        {
+            "Effect": "Allow",
+            "Action": [
+                "s3:ListBucket",
+                "s3:ListBucketMultipartUploads"
+            ],
+            "Resource": "arn:aws:s3:::BUCKET_NAME"
+        },
+        {
+            "Effect": "Allow",
+            "Action": [
+                "s3:GetObject",
+                "s3:PutObject",
+                "s3:DeleteObject",
+                "s3:AbortMultipartUpload"
+            ],
+            "Resource": "arn:aws:s3:::BUCKET_NAME/*"
+        }
+    ]
+}
+```
 
 ## Access control
 By default, the ntfy server is open for everyone, meaning **everyone can read and write to any topic** (this is how
 ntfy.sh is configured). To restrict access to your own server, you can optionally configure authentication and authorization. 
 
-ntfy's auth is implemented with a simple [SQLite](https://www.sqlite.org/)-based backend. It implements two roles 
-(`user` and `admin`) and per-topic `read` and `write` permissions using an [access control list (ACL)](https://en.wikipedia.org/wiki/Access-control_list). 
-Access control entries can be applied to users as well as the special everyone user (`*`), which represents anonymous API access. 
+ntfy's auth implements two roles (`user` and `admin`) and per-topic `read` and `write` permissions using an 
+[access control list (ACL)](https://en.wikipedia.org/wiki/Access-control_list). Access control entries can be applied 
+to users as well as the special everyone user (`*`), which represents anonymous API access. 
 
 To set up auth, **configure the following options**:
 
-* `auth-file` is the user/access database; it is created automatically if it doesn't already exist; suggested 
-  location `/var/lib/ntfy/user.db` (easiest if deb/rpm package is used)
+* `auth-file` is the user/access database (SQLite); it is created automatically if it doesn't already exist; suggested 
+  location `/var/lib/ntfy/user.db` (easiest if deb/rpm package is used). Alternatively, if `database-url` is set, 
+  auth is automatically enabled using PostgreSQL (see [database options](#database-options)).
 * `auth-default-access` defines the default/fallback access if no access control entry is found; it can be
   set to `read-write` (default), `read-only`, `write-only` or `deny-all`. **If you are setting up a private instance,
   you'll want to set this to `deny-all`** (see [private instance example](#example-private-instance)).
@@ -454,7 +882,7 @@ Here's an example:
     ```
     # Comma-separated list
     NTFY_AUTH_FILE='/var/lib/ntfy/user.db'
-    NTFY_AUTH_USERS='phil:$2a$10$YLiO8U21sX1uhZamTLJXHuxgVC0Z/GKISibrKCLohPgtG7yIxSk4C:admin,ben:$2a$10$NKbrNb7HPMjtQXWJ0f1pouw03LDLT/WzlO9VAv44x84bRCkh19h6m:user'
+    NTFY_AUTH_USERS='phil:$2a$10$YLiO8U21sX1uhZamTLJXHuxgVC0Z/GKISibrKCLohPgtG7yIxSk4C:admin,backup-service:$2a$10$NKbrNb7HPMjtQXWJ0f1pouw03LDLT/WzlO9VAv44x84bRCkh19h6m:user'
     NTFY_AUTH_TOKENS='phil:tk_3gd7d2yftt4b8ixyfe9mnmro88o76,backup-service:tk_f099we8uzj7xi5qshzajwp6jffvkz:Backup script'
     ```
 
@@ -470,7 +898,8 @@ and access tokens in the `auth-tokens` section (see [access tokens via the confi
 
 Here's an example that defines a single admin user `phil` with the password `mypass`, and a regular user `backup-script`
 with the password `backup-script`. The admin user has full access to all topics, while regular user can only
-access the `backups` topic with read-write permissions. The `auth-default-access` is set to `deny-all`, which means
+access the `backups` topic with read-write permissions. `phil` has a token `tk_3gd7d2yftt4b8ixyfe9mnmro88o76` 
+with the label "My personal token". The `auth-default-access` is set to `deny-all`, which means
 that all other users and anonymous access are denied by default.
 
 === "Config via /etc/ntfy/server.yml"
@@ -481,7 +910,7 @@ that all other users and anonymous access are denied by default.
       - "phil:$2a$10$YLiO8U21sX1uhZamTLJXHuxgVC0Z/GKISibrKCLohPgtG7yIxSk4C:admin"
       - "backup-script:$2a$10$/ehiQt.w7lhTmHXq.RNsOOkIwiPPeWFIzWYO3DRxNixnWKLX8.uj.:user"
     auth-access:
-      - "backup-service:backups:rw"
+      - "backup-script:backups:rw"
     auth-tokens:
       - "phil:tk_3gd7d2yftt4b8ixyfe9mnmro88o76:My personal token"
     ```
@@ -491,7 +920,7 @@ that all other users and anonymous access are denied by default.
     NTFY_AUTH_FILE='/var/lib/ntfy/user.db'
     NTFY_AUTH_DEFAULT_ACCESS='deny-all'
     NTFY_AUTH_USERS='phil:$2a$10$YLiO8U21sX1uhZamTLJXHuxgVC0Z/GKISibrKCLohPgtG7yIxSk4C:admin,backup-script:$2a$10$/ehiQt.w7lhTmHXq.RNsOOkIwiPPeWFIzWYO3DRxNixnWKLX8.uj.:user'
-    NTFY_AUTH_ACCESS='backup-service:backups:rw'
+    NTFY_AUTH_ACCESS='backup-script:backups:rw'
     NTFY_AUTH_TOKENS='phil:tk_3gd7d2yftt4b8ixyfe9mnmro88o76:My personal token'
     ```
 
@@ -590,6 +1019,10 @@ To allow forwarding messages via e-mail, you can configure an **SMTP server for
 you can set the `X-Email` header to [send messages via e-mail](publish.md#e-mail-notifications) (e.g. 
 `curl -d "hi there" -H "X-Email: phil@example.com" ntfy.sh/mytopic`).
 
+!!! info
+    On ntfy.sh, anonymous email sending was disabled due to abuse. To use the email notification feature, 
+    you must verify your email in the web app's [Account section](https://ntfy.sh/account). 
+
 As of today, only SMTP servers with PLAIN auth and STARTLS are supported. To enable e-mail sending, you must set the 
 following settings:
 
@@ -597,6 +1030,8 @@ following settings:
 * `smtp-sender-addr` is the hostname:port of the SMTP server
 * `smtp-sender-user` and `smtp-sender-pass` are the username and password of the SMTP user
 * `smtp-sender-from` is the e-mail address of the sender
+* `smtp-sender-verify` is a flag that forces email recipient verification when enabled. If set to true, 
+  only verified email recipients can be used in the `X-Email` header.
 
 Here's an example config using [Amazon SES](https://aws.amazon.com/ses/) for outgoing mail (this is how it is 
 configured for `ntfy.sh`):
@@ -608,9 +1043,18 @@ configured for `ntfy.sh`):
     smtp-sender-user: "AKIDEADBEEFAFFE12345"
     smtp-sender-pass: "Abd13Kf+sfAk2DzifjafldkThisIsNotARealKeyOMG."
     smtp-sender-from: "ntfy@ntfy.sh"
+    smtp-sender-verify: true
     ```
 
-Please also refer to the [rate limiting](#rate-limiting) settings below, specifically `visitor-email-limit-burst` 
+By default, any user (including anonymous users) can send email notifications to any address. To require email
+address verification, set `smtp-sender-verify` to `true`. When enabled, anonymous users cannot send emails, and
+authenticated users can only send to *literal* email addresses they have verified in their account settings.
+
+Regardless of this setting, a logged-in user can pass `yes`/`true`/`1` as the `X-Email` value to send to their primary
+verified address (falling back to their first verified address if no primary is designated). `smtp-sender-verify` only
+governs whether arbitrary literal addresses are allowed.
+
+Please also refer to the [rate limiting](#rate-limiting) settings below, specifically `visitor-email-limit-burst`
 and `visitor-email-limit-burst`. Setting these conservatively is necessary to avoid abuse.
 
 ## E-mail publishing
@@ -964,7 +1408,7 @@ or the root domain:
     }
     ```
 
-=== "Apache2"
+=== "Apache >= 2.4.47"
     ```
     # /etc/apache2/sites-*/ntfy.conf
 
@@ -972,6 +1416,7 @@ or the root domain:
         ServerName ntfy.sh
 
         # Proxy connections to ntfy (requires "a2enmod proxy proxy_http")
+        # Use mod_proxy_http for websocket upgrade ('upgrade=websocket'), which requires Apache (httpd) >= 2.4.47.
         ProxyPass / http://127.0.0.1:2586/ upgrade=websocket
         ProxyPassReverse / http://127.0.0.1:2586/
 
@@ -998,6 +1443,7 @@ or the root domain:
         Include /etc/letsencrypt/options-ssl-apache.conf
 
         # Proxy connections to ntfy (requires "a2enmod proxy proxy_http")
+        # Use mod_proxy_http for websocket upgrade ('upgrade=websocket'), which requires Apache (httpd) >= 2.4.47.
         ProxyPass / http://127.0.0.1:2586/ upgrade=websocket
         ProxyPassReverse / http://127.0.0.1:2586/
 
@@ -1010,6 +1456,68 @@ or the root domain:
     </VirtualHost>
     ```
 
+=== "Apache < 2.4.47"
+    ```
+    # /etc/apache2/sites-*/ntfy.conf
+
+    <VirtualHost *:80>
+        ServerName ntfy.sh
+
+        # Proxy connections to ntfy (requires "a2enmod proxy")
+        ProxyPass / http://127.0.0.1:2586/
+        ProxyPassReverse / http://127.0.0.1:2586/
+
+        # Enable mod_rewrite (requires "a2enmod rewrite")
+        RewriteEngine on
+        # WebSockets support (requires "a2enmod proxy_wstunnel")
+        # mod_proxy_wstunnel is deprecated as of Apache (httpd) 2.4.47. It also uses more resources since it relies on mod_rewrite.
+        RewriteCond %{HTTP:Upgrade} websocket [NC]
+        RewriteCond %{HTTP:Connection} upgrade [NC]
+        RewriteRule ^/?(.*) "ws://127.0.0.1:2586/$1" [P,L]
+
+        SetEnv proxy-nokeepalive 1
+        SetEnv proxy-sendchunked 1
+
+        # Higher than the max message size of 4096 bytes
+        LimitRequestBody 102400
+        
+        # Redirect HTTP to HTTPS, but only for GET topic addresses, since we want 
+        # it to work with curl without the annoying https:// prefix (requires "a2enmod alias")
+        <If "%{REQUEST_METHOD} == 'GET'">
+            RedirectMatch permanent "^/([-_A-Za-z0-9]{0,64})$" "https://%{SERVER_NAME}/$1"
+        </If>
+
+    </VirtualHost>
+    
+    <VirtualHost *:443>
+        ServerName ntfy.sh
+        
+        SSLEngine on
+        SSLCertificateFile /etc/letsencrypt/live/ntfy.sh/fullchain.pem
+        SSLCertificateKeyFile /etc/letsencrypt/live/ntfy.sh/privkey.pem
+        Include /etc/letsencrypt/options-ssl-apache.conf
+
+        # Proxy connections to ntfy (requires "a2enmod proxy")
+        ProxyPass / http://127.0.0.1:2586/
+        ProxyPassReverse / http://127.0.0.1:2586/
+
+        # Enable mod_rewrite (requires "a2enmod rewrite")
+        RewriteEngine on
+        # WebSockets support (requires "a2enmod proxy_wstunnel")
+        # mod_proxy_wstunnel is deprecated as of Apache (httpd) 2.4.47. It also uses more resources since it relies on mod_rewrite.
+        RewriteCond %{HTTP:Upgrade} websocket [NC]
+        RewriteCond %{HTTP:Connection} upgrade [NC]
+        RewriteRule ^/?(.*) "ws://127.0.0.1:2586/$1" [P,L]
+
+        SetEnv proxy-nokeepalive 1
+        SetEnv proxy-sendchunked 1
+
+        # Higher than the max message size of 4096 bytes 
+        LimitRequestBody 102400
+	
+    </VirtualHost>
+    ```
+
 === "caddy"
     ```
     # Note that this config is most certainly incomplete. Please help out and let me know what's missing
@@ -1141,12 +1649,15 @@ a database to keep track of the browser's subscriptions, and an admin email addr
 
 - `web-push-public-key` is the generated VAPID public key, e.g. AA1234BBCCddvveekaabcdfqwertyuiopasdfghjklzxcvbnm1234567890
 - `web-push-private-key` is the generated VAPID private key, e.g. AA2BB1234567890abcdefzxcvbnm1234567890
-- `web-push-file` is a database file to keep track of browser subscription endpoints, e.g. `/var/cache/ntfy/webpush.db`
+- `web-push-file` is a database file to keep track of browser subscription endpoints, e.g. `/var/cache/ntfy/webpush.db` (not required if `database-url` is set)
 - `web-push-email-address` is the admin email address send to the push provider, e.g. `sysadmin@example.com`
 - `web-push-startup-queries` is an optional list of queries to run on startup`
 - `web-push-expiry-warning-duration` defines the duration after which unused subscriptions are sent a warning (default is `55d`)
 - `web-push-expiry-duration` defines the duration after which unused subscriptions will expire (default is `60d`)
 
+Alternatively, you can use PostgreSQL instead of SQLite by setting `database-url`
+(see [PostgreSQL database](#postgresql-experimental)).
+
 Limitations:
 
 - Like foreground browser notifications, background push notifications require the web app to be served over HTTPS. A _valid_
@@ -1172,9 +1683,10 @@ web-push-file: /var/cache/ntfy/webpush.db
 web-push-email-address: sysadmin@example.com
 ```
 
-The `web-push-file` is used to store the push subscriptions. Unused subscriptions will send out a warning after 55 days,
-and will automatically expire after 60 days (default). If the gateway returns an error (e.g. 410 Gone when a user has unsubscribed),
-subscriptions are also removed automatically.
+The `web-push-file` is used to store the push subscriptions in a local SQLite database. Alternatively, if `database-url`
+is set, subscriptions are stored in PostgreSQL and `web-push-file` is not required. Unused subscriptions will send out
+a warning after 55 days, and will automatically expire after 60 days (default). If the gateway returns an error
+(e.g. 410 Gone when a user has unsubscribed), subscriptions are also removed automatically.
 
 The web app refreshes subscriptions on start and regularly on an interval, but this file should be persisted across restarts. If the subscription
 file is deleted or lost, any web apps that aren't open will not receive new web push notifications until you open then.
@@ -1410,6 +1922,17 @@ are enabled):
 * `visitor-email-limit-burst` is the initial bucket of emails each visitor has. This defaults to 16.
 * `visitor-email-limit-replenish` is the rate at which the bucket is refilled (one email per x). Defaults to 1h.
 
+### Topic creation limits
+To mitigate topic-enumeration / squatting attacks (where a single source pokes thousands of guessable
+topic names to inflate the server's in-memory topic map), there is a per-visitor limit on how many *new*
+topics each visitor can cause to be created. Touching topics that already exist in memory does not consume
+a token; only first-time insertions do.
+
+* `visitor-topic-creation-limit-burst` is the initial bucket of new-topic tokens. Set to 0 to disable
+  the limit entirely. Defaults to 100.
+* `visitor-topic-creation-limit-replenish` is the rate at which the bucket is refilled (one new topic per x).
+  Defaults to 1m.
+
 ### Firebase limits
 If [Firebase is configured](#firebase-fcm), all messages are also published to a Firebase topic (unless `Firebase: no` 
 is set). Firebase enforces [its own limits](https://firebase.google.com/docs/cloud-messaging/concept-options#topics_throttling)
@@ -1745,78 +2268,84 @@ variable before running the `ntfy` command (e.g. `export NTFY_LISTEN_HTTP=:80`).
     `cache_duration` and `cache-duration` are both supported. This is to support stricter YAML parsers that do 
     not support dashes.
 
-| Config option                              | Env variable                                    | Format                                              | Default           | Description                                                                                                                                                                                                                     |
-|--------------------------------------------|-------------------------------------------------|-----------------------------------------------------|-------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
-| `base-url`                                 | `NTFY_BASE_URL`                                 | *URL*                                               | -                 | Public facing base URL of the service (e.g. `https://ntfy.sh`)                                                                                                                                                                  |
-| `listen-http`                              | `NTFY_LISTEN_HTTP`                              | `[host]:port`                                       | `:80`             | Listen address for the HTTP web server                                                                                                                                                                                          |
-| `listen-https`                             | `NTFY_LISTEN_HTTPS`                             | `[host]:port`                                       | -                 | Listen address for the HTTPS web server. If set, you also need to set `key-file` and `cert-file`.                                                                                                                               |
-| `listen-unix`                              | `NTFY_LISTEN_UNIX`                              | *filename*                                          | -                 | Path to a Unix socket to listen on                                                                                                                                                                                              |
-| `listen-unix-mode`                         | `NTFY_LISTEN_UNIX_MODE`                         | *file mode*                                         | *system default*  | File mode of the Unix socket, e.g. 0700 or 0777                                                                                                                                                                                 |
-| `key-file`                                 | `NTFY_KEY_FILE`                                 | *filename*                                          | -                 | HTTPS/TLS private key file, only used if `listen-https` is set.                                                                                                                                                                 |
-| `cert-file`                                | `NTFY_CERT_FILE`                                | *filename*                                          | -                 | HTTPS/TLS certificate file, only used if `listen-https` is set.                                                                                                                                                                 |
-| `firebase-key-file`                        | `NTFY_FIREBASE_KEY_FILE`                        | *filename*                                          | -                 | If set, also publish messages to a Firebase Cloud Messaging (FCM) topic for your app. This is optional and only required to save battery when using the Android app. See [Firebase (FCM)](#firebase-fcm).                       |
-| `cache-file`                               | `NTFY_CACHE_FILE`                               | *filename*                                          | -                 | If set, messages are cached in a local SQLite database instead of only in-memory. This allows for service restarts without losing messages in support of the since= parameter. See [message cache](#message-cache).             |
-| `cache-duration`                           | `NTFY_CACHE_DURATION`                           | *duration*                                          | 12h               | Duration for which messages will be buffered before they are deleted. This is required to support the `since=...` and `poll=1` parameter. Set this to `0` to disable the cache entirely.                                        |
-| `cache-startup-queries`                    | `NTFY_CACHE_STARTUP_QUERIES`                    | *string (SQL queries)*                              | -                 | SQL queries to run during database startup; this is useful for tuning and [enabling WAL mode](#message-cache)                                                                                                                   |
-| `cache-batch-size`                         | `NTFY_CACHE_BATCH_SIZE`                         | *int*                                               | 0                 | Max size of messages to batch together when writing to message cache (if zero, writes are synchronous)                                                                                                                          |
-| `cache-batch-timeout`                      | `NTFY_CACHE_BATCH_TIMEOUT`                      | *duration*                                          | 0s                | Timeout for batched async writes to the message cache (if zero, writes are synchronous)                                                                                                                                         |
-| `auth-file`                                | `NTFY_AUTH_FILE`                                | *filename*                                          | -                 | Auth database file used for access control. If set, enables authentication and access control. See [access control](#access-control).                                                                                           |
-| `auth-default-access`                      | `NTFY_AUTH_DEFAULT_ACCESS`                      | `read-write`, `read-only`, `write-only`, `deny-all` | `read-write`      | Default permissions if no matching entries in the auth database are found. Default is `read-write`.                                                                                                                             |
-| `behind-proxy`                             | `NTFY_BEHIND_PROXY`                             | *bool*                                              | false             | If set, use forwarded header (e.g. X-Forwarded-For, X-Client-IP) to determine visitor IP address (for rate limiting)                                                                                                            |
-| `proxy-forwarded-header`                   | `NTFY_PROXY_FORWARDED_HEADER`                   | *string*                                            | `X-Forwarded-For` | Use specified header to determine visitor IP address (for rate limiting)                                                                                                                                                        |
-| `proxy-trusted-hosts`                      | `NTFY_PROXY_TRUSTED_HOSTS`                      | *comma-separated host/IP/CIDR list*                 | -                 | Comma-separated list of trusted IP addresses, hosts, or CIDRs to remove from forwarded header                                                                                                                                   |
-| `attachment-cache-dir`                     | `NTFY_ATTACHMENT_CACHE_DIR`                     | *directory*                                         | -                 | Cache directory for attached files. To enable attachments, this has to be set.                                                                                                                                                  |
-| `attachment-total-size-limit`              | `NTFY_ATTACHMENT_TOTAL_SIZE_LIMIT`              | *size*                                              | 5G                | Limit of the on-disk attachment cache directory. If the limits is exceeded, new attachments will be rejected.                                                                                                                   |
-| `attachment-file-size-limit`               | `NTFY_ATTACHMENT_FILE_SIZE_LIMIT`               | *size*                                              | 15M               | Per-file attachment size limit (e.g. 300k, 2M, 100M). Larger attachment will be rejected.                                                                                                                                       |
-| `attachment-expiry-duration`               | `NTFY_ATTACHMENT_EXPIRY_DURATION`               | *duration*                                          | 3h                | Duration after which uploaded attachments will be deleted (e.g. 3h, 20h). Strongly affects `visitor-attachment-total-size-limit`.                                                                                               |
-| `smtp-sender-addr`                         | `NTFY_SMTP_SENDER_ADDR`                         | `host:port`                                         | -                 | SMTP server address to allow email sending                                                                                                                                                                                      |
-| `smtp-sender-user`                         | `NTFY_SMTP_SENDER_USER`                         | *string*                                            | -                 | SMTP user; only used if e-mail sending is enabled                                                                                                                                                                               |
-| `smtp-sender-pass`                         | `NTFY_SMTP_SENDER_PASS`                         | *string*                                            | -                 | SMTP password; only used if e-mail sending is enabled                                                                                                                                                                           |
-| `smtp-sender-from`                         | `NTFY_SMTP_SENDER_FROM`                         | *e-mail address*                                    | -                 | SMTP sender e-mail address; only used if e-mail sending is enabled                                                                                                                                                              |
-| `smtp-server-listen`                       | `NTFY_SMTP_SERVER_LISTEN`                       | `[ip]:port`                                         | -                 | Defines the IP address and port the SMTP server will listen on, e.g. `:25` or `1.2.3.4:25`                                                                                                                                      |
-| `smtp-server-domain`                       | `NTFY_SMTP_SERVER_DOMAIN`                       | *domain name*                                       | -                 | SMTP server e-mail domain, e.g. `ntfy.sh`                                                                                                                                                                                       |
-| `smtp-server-addr-prefix`                  | `NTFY_SMTP_SERVER_ADDR_PREFIX`                  | *string*                                            | -                 | Optional prefix for the e-mail addresses to prevent spam, e.g. `ntfy-`                                                                                                                                                          |
-| `twilio-account`                           | `NTFY_TWILIO_ACCOUNT`                           | *string*                                            | -                 | Twilio account SID, e.g. AC12345beefbeef67890beefbeef122586                                                                                                                                                                     |
-| `twilio-auth-token`                        | `NTFY_TWILIO_AUTH_TOKEN`                        | *string*                                            | -                 | Twilio auth token, e.g. affebeef258625862586258625862586                                                                                                                                                                        |
-| `twilio-phone-number`                      | `NTFY_TWILIO_PHONE_NUMBER`                      | *string*                                            | -                 | Twilio outgoing phone number, e.g. +18775132586                                                                                                                                                                                 |
-| `twilio-verify-service`                    | `NTFY_TWILIO_VERIFY_SERVICE`                    | *string*                                            | -                 | Twilio Verify service SID, e.g. VA12345beefbeef67890beefbeef122586                                                                                                                                                              |
-| `keepalive-interval`                       | `NTFY_KEEPALIVE_INTERVAL`                       | *duration*                                          | 45s               | Interval in which keepalive messages are sent to the client. This is to prevent intermediaries closing the connection for inactivity. Note that the Android app has a hardcoded timeout at 77s, so it should be less than that. |
-| `manager-interval`                         | `NTFY_MANAGER_INTERVAL`                         | *duration*                                          | 1m                | Interval in which the manager prunes old messages, deletes topics and prints the stats.                                                                                                                                         |
-| `message-size-limit`                       | `NTFY_MESSAGE_SIZE_LIMIT`                       | *size*                                              | 4K                | The size limit for the message body. Please note that this is largely untested, and that FCM/APNS have limits around 4KB. If you increase this size limit, FCM and APNS will NOT work for large messages.                       |
-| `message-delay-limit`                      | `NTFY_MESSAGE_DELAY_LIMIT`                      | *duration*                                          | 3d                | Amount of time a message can be [scheduled](publish.md#scheduled-delivery) into the future when using the `Delay` header                                                                                                        |
-| `global-topic-limit`                       | `NTFY_GLOBAL_TOPIC_LIMIT`                       | *number*                                            | 15,000            | Rate limiting: Total number of topics before the server rejects new topics.                                                                                                                                                     |
-| `upstream-base-url`                        | `NTFY_UPSTREAM_BASE_URL`                        | *URL*                                               | `https://ntfy.sh` | Forward poll request to an upstream server, this is needed for iOS push notifications for self-hosted servers                                                                                                                   |
-| `upstream-access-token`                    | `NTFY_UPSTREAM_ACCESS_TOKEN`                    | *string*                                            | `tk_zyYLYj...`    | Access token to use for the upstream server; needed only if upstream rate limits are exceeded or upstream server requires auth                                                                                                  |
-| `visitor-attachment-total-size-limit`      | `NTFY_VISITOR_ATTACHMENT_TOTAL_SIZE_LIMIT`      | *size*                                              | 100M              | Rate limiting: Total storage limit used for attachments per visitor, for all attachments combined. Storage is freed after attachments expire. See `attachment-expiry-duration`.                                                 |
-| `visitor-attachment-daily-bandwidth-limit` | `NTFY_VISITOR_ATTACHMENT_DAILY_BANDWIDTH_LIMIT` | *size*                                              | 500M              | Rate limiting: Total daily attachment download/upload traffic limit per visitor. This is to protect your bandwidth costs from exploding.                                                                                        |
-| `visitor-email-limit-burst`                | `NTFY_VISITOR_EMAIL_LIMIT_BURST`                | *number*                                            | 16                | Rate limiting:Initial limit of e-mails per visitor                                                                                                                                                                              |
-| `visitor-email-limit-replenish`            | `NTFY_VISITOR_EMAIL_LIMIT_REPLENISH`            | *duration*                                          | 1h                | Rate limiting: Strongly related to `visitor-email-limit-burst`: The rate at which the bucket is refilled                                                                                                                        |
-| `visitor-message-daily-limit`              | `NTFY_VISITOR_MESSAGE_DAILY_LIMIT`              | *number*                                            | -                 | Rate limiting: Allowed number of messages per day per visitor, reset every day at midnight (UTC). By default, this value is unset.                                                                                              |
-| `visitor-request-limit-burst`              | `NTFY_VISITOR_REQUEST_LIMIT_BURST`              | *number*                                            | 60                | Rate limiting: Allowed GET/PUT/POST requests per second, per visitor. This setting is the initial bucket of requests each visitor has                                                                                           |
-| `visitor-request-limit-replenish`          | `NTFY_VISITOR_REQUEST_LIMIT_REPLENISH`          | *duration*                                          | 5s                | Rate limiting: Strongly related to `visitor-request-limit-burst`: The rate at which the bucket is refilled                                                                                                                      |
-| `visitor-request-limit-exempt-hosts`       | `NTFY_VISITOR_REQUEST_LIMIT_EXEMPT_HOSTS`       | *comma-separated host/IP/CIDR list*                 | -                 | Rate limiting: List of hostnames and IPs to be exempt from request rate limiting                                                                                                                                                |
-| `visitor-subscription-limit`               | `NTFY_VISITOR_SUBSCRIPTION_LIMIT`               | *number*                                            | 30                | Rate limiting: Number of subscriptions per visitor (IP address)                                                                                                                                                                 |
-| `visitor-subscriber-rate-limiting`         | `NTFY_VISITOR_SUBSCRIBER_RATE_LIMITING`         | *bool*                                              | `false`           | Rate limiting: Enables subscriber-based rate limiting                                                                                                                                                                           |
-| `visitor-prefix-bits-ipv4`                 | `NTFY_VISITOR_PREFIX_BITS_IPV4`                 | *number*                                            | 32                | Rate limiting: Number of bits to use for IPv4 visitor prefix, e.g. 24 for /24                                                                                                                                                   |
-| `visitor-prefix-bits-ipv6`                 | `NTFY_VISITOR_PREFIX_BITS_IPV6`                 | *number*                                            | 64                | Rate limiting: Number of bits to use for IPv6 visitor prefix, e.g. 48 for /48                                                                                                                                                   |
-| `web-root`                                 | `NTFY_WEB_ROOT`                                 | *path*, e.g. `/` or `/app`, or `disable`            | `/`               | Sets root of the web app (e.g. /, or /app), or disables it entirely (disable)                                                                                                                                                   |
-| `enable-signup`                            | `NTFY_ENABLE_SIGNUP`                            | *boolean* (`true` or `false`)                       | `false`           | Allows users to sign up via the web app, or API                                                                                                                                                                                 |
-| `enable-login`                             | `NTFY_ENABLE_LOGIN`                             | *boolean* (`true` or `false`)                       | `false`           | Allows users to log in via the web app, or API                                                                                                                                                                                  |
-| `enable-reservations`                      | `NTFY_ENABLE_RESERVATIONS`                      | *boolean* (`true` or `false`)                       | `false`           | Allows users to reserve topics (if their tier allows it)                                                                                                                                                                        |
-| `require-login`                            | `NTFY_REQUIRE_LOGIN`                            | *boolean* (`true` or `false`)                       | `false`           | All actions via the web app require a login                                                                                                                                                                        |
-| `stripe-secret-key`                        | `NTFY_STRIPE_SECRET_KEY`                        | *string*                                            | -                 | Payments: Key used for the Stripe API communication, this enables payments                                                                                                                                                      |
-| `stripe-webhook-key`                       | `NTFY_STRIPE_WEBHOOK_KEY`                       | *string*                                            | -                 | Payments: Key required to validate the authenticity of incoming webhooks from Stripe                                                                                                                                            |
-| `billing-contact`                          | `NTFY_BILLING_CONTACT`                          | *email address* or *website*                        | -                 | Payments: Email or website displayed in Upgrade dialog as a billing contact                                                                                                                                                     |
-| `web-push-public-key`                      | `NTFY_WEB_PUSH_PUBLIC_KEY`                      | *string*                                            | -                 | Web Push: Public Key. Run `ntfy webpush keys` to generate                                                                                                                                                                       |
-| `web-push-private-key`                     | `NTFY_WEB_PUSH_PRIVATE_KEY`                     | *string*                                            | -                 | Web Push: Private Key. Run `ntfy webpush keys` to generate                                                                                                                                                                      |
-| `web-push-file`                            | `NTFY_WEB_PUSH_FILE`                            | *string*                                            | -                 | Web Push: Database file that stores subscriptions                                                                                                                                                                               |
-| `web-push-email-address`                   | `NTFY_WEB_PUSH_EMAIL_ADDRESS`                   | *string*                                            | -                 | Web Push: Sender email address                                                                                                                                                                                                  |
-| `web-push-startup-queries`                 | `NTFY_WEB_PUSH_STARTUP_QUERIES`                 | *string*                                            | -                 | Web Push: SQL queries to run against subscription database at startup                                                                                                                                                           |
-| `web-push-expiry-duration`                 | `NTFY_WEB_PUSH_EXPIRY_DURATION`                 | *duration*                                          | 60d               | Web Push: Duration after which a subscription is considered stale and will be deleted. This is to prevent stale subscriptions.                                                                                                  |
-| `web-push-expiry-warning-duration`         | `NTFY_WEB_PUSH_EXPIRY_WARNING_DURATION`         | *duration*                                          | 55d               | Web Push: Duration after which a warning is sent to subscribers that their subscription will expire soon. This is to prevent stale subscriptions.                                                                               |
-| `log-format`                               | `NTFY_LOG_FORMAT`                               | *string*                                            | `text`            | Defines the output format, can be text or json                                                                                                                                                                                  |
-| `log-file`                                 | `NTFY_LOG_FILE`                                 | *string*                                            | -                 | Defines the filename to write logs to. If this is not set, ntfy logs to stderr                                                                                                                                                  |
-| `log-level`                                | `NTFY_LOG_LEVEL`                                | *string*                                            | `info`            | Defines the default log level, can be one of trace, debug, info, warn or error                                                                                                                                                  |
+| Config option                              | Env variable                                    | Format                                              | Default           | Description                                                                                                                                                                                                                             |
+|--------------------------------------------|-------------------------------------------------|-----------------------------------------------------|-------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
+| `base-url`                                 | `NTFY_BASE_URL`                                 | *URL*                                               | -                 | Public facing base URL of the service (e.g. `https://ntfy.sh`)                                                                                                                                                                          |
+| `listen-http`                              | `NTFY_LISTEN_HTTP`                              | `[host]:port`                                       | `:80`             | Listen address for the HTTP web server                                                                                                                                                                                                  |
+| `listen-https`                             | `NTFY_LISTEN_HTTPS`                             | `[host]:port`                                       | -                 | Listen address for the HTTPS web server. If set, you also need to set `key-file` and `cert-file`.                                                                                                                                       |
+| `listen-unix`                              | `NTFY_LISTEN_UNIX`                              | *filename*                                          | -                 | Path to a Unix socket to listen on                                                                                                                                                                                                      |
+| `listen-unix-mode`                         | `NTFY_LISTEN_UNIX_MODE`                         | *file mode*                                         | *system default*  | File mode of the Unix socket, e.g. 0700 or 0777                                                                                                                                                                                         |
+| `key-file`                                 | `NTFY_KEY_FILE`                                 | *filename*                                          | -                 | HTTPS/TLS private key file, only used if `listen-https` is set.                                                                                                                                                                         |
+| `cert-file`                                | `NTFY_CERT_FILE`                                | *filename*                                          | -                 | HTTPS/TLS certificate file, only used if `listen-https` is set.                                                                                                                                                                         |
+| `firebase-key-file`                        | `NTFY_FIREBASE_KEY_FILE`                        | *filename*                                          | -                 | If set, also publish messages to a Firebase Cloud Messaging (FCM) topic for your app. This is optional and only required to save battery when using the Android app. See [Firebase (FCM)](#firebase-fcm).                               |
+| `database-url`                             | `NTFY_DATABASE_URL`                             | *string (connection URL)*                           | -                 | PostgreSQL connection string (e.g. `postgres://user:pass@host:5432/ntfy`). If set, uses PostgreSQL for all database-backed stores (message cache, user manager, web push) instead of SQLite. See [database options](#database-options). |
+| `database-replica-urls`                    | `NTFY_DATABASE_REPLICA_URLS`                    | *list of strings (connection URLs)*                 | -                 | PostgreSQL read replica connection strings. Non-critical read-only queries are distributed across replicas (round-robin) with automatic fallback to primary. Requires `database-url`.                                                   |
+| `cache-file`                               | `NTFY_CACHE_FILE`                               | *filename*                                          | -                 | If set, messages are cached in a local SQLite database instead of only in-memory. This allows for service restarts without losing messages in support of the since= parameter. See [message cache](#message-cache).                     |
+| `cache-duration`                           | `NTFY_CACHE_DURATION`                           | *duration*                                          | 12h               | Duration for which messages will be buffered before they are deleted. This is required to support the `since=...` and `poll=1` parameter. Set this to `0` to disable the cache entirely.                                                |
+| `cache-startup-queries`                    | `NTFY_CACHE_STARTUP_QUERIES`                    | *string (SQL queries)*                              | -                 | SQL queries to run during database startup; this is useful for tuning and [enabling WAL mode](#message-cache)                                                                                                                           |
+| `cache-batch-size`                         | `NTFY_CACHE_BATCH_SIZE`                         | *int*                                               | 0                 | Max size of messages to batch together when writing to message cache (if zero, writes are synchronous)                                                                                                                                  |
+| `cache-batch-timeout`                      | `NTFY_CACHE_BATCH_TIMEOUT`                      | *duration*                                          | 0s                | Timeout for batched async writes to the message cache (if zero, writes are synchronous)                                                                                                                                                 |
+| `auth-file`                                | `NTFY_AUTH_FILE`                                | *filename*                                          | -                 | Auth database file used for access control (SQLite). If set, enables authentication and access control. Not required if `database-url` is set. See [access control](#access-control).                                                   |
+| `auth-default-access`                      | `NTFY_AUTH_DEFAULT_ACCESS`                      | `read-write`, `read-only`, `write-only`, `deny-all` | `read-write`      | Default permissions if no matching entries in the auth database are found. Default is `read-write`.                                                                                                                                     |
+| `auth-access-cache`                        | `NTFY_AUTH_ACCESS_CACHE`                        | *bool*                                              | false             | Enables an in-memory ACL cache so authorization checks no longer hit the database. Only worth enabling on high-volume servers.                                                                                                          |
+| `behind-proxy`                             | `NTFY_BEHIND_PROXY`                             | *bool*                                              | false             | If set, use forwarded header (e.g. X-Forwarded-For, X-Client-IP) to determine visitor IP address (for rate limiting)                                                                                                                    |
+| `proxy-forwarded-header`                   | `NTFY_PROXY_FORWARDED_HEADER`                   | *string*                                            | `X-Forwarded-For` | Use specified header to determine visitor IP address (for rate limiting)                                                                                                                                                                |
+| `proxy-trusted-hosts`                      | `NTFY_PROXY_TRUSTED_HOSTS`                      | *comma-separated host/IP/CIDR list*                 | -                 | Comma-separated list of trusted IP addresses, hosts, or CIDRs to remove from forwarded header                                                                                                                                           |
+| `attachment-cache-dir`                     | `NTFY_ATTACHMENT_CACHE_DIR`                     | *directory or S3 URL*                               | -                 | Cache directory for attached files, or S3 URL for object storage (format: `s3://KEY:SECRET@BUCKET[/PREFIX]?region=REGION[&endpoint=ENDPOINT][&disable_http2=true]`).                                                                    |
+| `attachment-total-size-limit`              | `NTFY_ATTACHMENT_TOTAL_SIZE_LIMIT`              | *size*                                              | 5G                | Limit of the on-disk attachment cache directory. If the limits is exceeded, new attachments will be rejected.                                                                                                                           |
+| `attachment-file-size-limit`               | `NTFY_ATTACHMENT_FILE_SIZE_LIMIT`               | *size*                                              | 15M               | Per-file attachment size limit (e.g. 300k, 2M, 100M). Larger attachment will be rejected.                                                                                                                                               |
+| `attachment-expiry-duration`               | `NTFY_ATTACHMENT_EXPIRY_DURATION`               | *duration*                                          | 3h                | Duration after which uploaded attachments will be deleted (e.g. 3h, 20h). Strongly affects `visitor-attachment-total-size-limit`.                                                                                                       |
+| `smtp-sender-addr`                         | `NTFY_SMTP_SENDER_ADDR`                         | `host:port`                                         | -                 | SMTP server address to allow email sending                                                                                                                                                                                              |
+| `smtp-sender-user`                         | `NTFY_SMTP_SENDER_USER`                         | *string*                                            | -                 | SMTP user; only used if e-mail sending is enabled                                                                                                                                                                                       |
+| `smtp-sender-pass`                         | `NTFY_SMTP_SENDER_PASS`                         | *string*                                            | -                 | SMTP password; only used if e-mail sending is enabled                                                                                                                                                                                   |
+| `smtp-sender-from`                         | `NTFY_SMTP_SENDER_FROM`                         | *e-mail address*                                    | -                 | SMTP sender e-mail address; only used if e-mail sending is enabled                                                                                                                                                                      |
+| `smtp-sender-verify`                       | `NTFY_SMTP_SENDER_VERIFY`                       | *bool*                                              | `false`           | If true, require verified email addresses for email notifications; anonymous email sending is disabled                                                                                                                                  |
+| `smtp-server-listen`                       | `NTFY_SMTP_SERVER_LISTEN`                       | `[ip]:port`                                         | -                 | Defines the IP address and port the SMTP server will listen on, e.g. `:25` or `1.2.3.4:25`                                                                                                                                              |
+| `smtp-server-domain`                       | `NTFY_SMTP_SERVER_DOMAIN`                       | *domain name*                                       | -                 | SMTP server e-mail domain, e.g. `ntfy.sh`                                                                                                                                                                                               |
+| `smtp-server-addr-prefix`                  | `NTFY_SMTP_SERVER_ADDR_PREFIX`                  | *string*                                            | -                 | Optional prefix for the e-mail addresses to prevent spam, e.g. `ntfy-`                                                                                                                                                                  |
+| `twilio-account`                           | `NTFY_TWILIO_ACCOUNT`                           | *string*                                            | -                 | Twilio account SID, e.g. AC12345beefbeef67890beefbeef122586                                                                                                                                                                             |
+| `twilio-auth-token`                        | `NTFY_TWILIO_AUTH_TOKEN`                        | *string*                                            | -                 | Twilio auth token, e.g. affebeef258625862586258625862586                                                                                                                                                                                |
+| `twilio-phone-number`                      | `NTFY_TWILIO_PHONE_NUMBER`                      | *string*                                            | -                 | Twilio outgoing phone number, e.g. +18775132586                                                                                                                                                                                         |
+| `twilio-verify-service`                    | `NTFY_TWILIO_VERIFY_SERVICE`                    | *string*                                            | -                 | Twilio Verify service SID, e.g. VA12345beefbeef67890beefbeef122586                                                                                                                                                                      |
+| `keepalive-interval`                       | `NTFY_KEEPALIVE_INTERVAL`                       | *duration*                                          | 45s               | Interval in which keepalive messages are sent to the client. This is to prevent intermediaries closing the connection for inactivity. Note that the Android app has a hardcoded timeout at 77s, so it should be less than that.         |
+| `manager-interval`                         | `NTFY_MANAGER_INTERVAL`                         | *duration*                                          | 1m                | Interval in which the manager prunes old messages, deletes topics and prints the stats.                                                                                                                                                 |
+| `message-size-limit`                       | `NTFY_MESSAGE_SIZE_LIMIT`                       | *size*                                              | 4K                | The size limit for the message body. Please note that this is largely untested, and that FCM/APNS have limits around 4KB. If you increase this size limit, FCM and APNS will NOT work for large messages.                               |
+| `message-delay-limit`                      | `NTFY_MESSAGE_DELAY_LIMIT`                      | *duration*                                          | 3d                | Amount of time a message can be [scheduled](publish.md#scheduled-delivery) into the future when using the `Delay` header                                                                                                                |
+| `global-topic-limit`                       | `NTFY_GLOBAL_TOPIC_LIMIT`                       | *number*                                            | 15,000            | Rate limiting: Total number of topics before the server rejects new topics.                                                                                                                                                             |
+| `upstream-base-url`                        | `NTFY_UPSTREAM_BASE_URL`                        | *URL*                                               | `https://ntfy.sh` | Forward poll request to an upstream server, this is needed for iOS push notifications for self-hosted servers                                                                                                                           |
+| `upstream-access-token`                    | `NTFY_UPSTREAM_ACCESS_TOKEN`                    | *string*                                            | `tk_zyYLYj...`    | Access token to use for the upstream server; needed only if upstream rate limits are exceeded or upstream server requires auth                                                                                                          |
+| `visitor-attachment-total-size-limit`      | `NTFY_VISITOR_ATTACHMENT_TOTAL_SIZE_LIMIT`      | *size*                                              | 100M              | Rate limiting: Total storage limit used for attachments per visitor, for all attachments combined. Storage is freed after attachments expire. See `attachment-expiry-duration`.                                                         |
+| `visitor-attachment-daily-bandwidth-limit` | `NTFY_VISITOR_ATTACHMENT_DAILY_BANDWIDTH_LIMIT` | *size*                                              | 500M              | Rate limiting: Total daily attachment download/upload traffic limit per visitor. This is to protect your bandwidth costs from exploding.                                                                                                |
+| `visitor-email-limit-burst`                | `NTFY_VISITOR_EMAIL_LIMIT_BURST`                | *number*                                            | 16                | Rate limiting:Initial limit of e-mails per visitor                                                                                                                                                                                      |
+| `visitor-email-limit-replenish`            | `NTFY_VISITOR_EMAIL_LIMIT_REPLENISH`            | *duration*                                          | 1h                | Rate limiting: Strongly related to `visitor-email-limit-burst`: The rate at which the bucket is refilled                                                                                                                                |
+| `visitor-message-daily-limit`              | `NTFY_VISITOR_MESSAGE_DAILY_LIMIT`              | *number*                                            | -                 | Rate limiting: Allowed number of messages per day per visitor, reset every day at midnight (UTC). By default, this value is unset.                                                                                                      |
+| `visitor-request-limit-burst`              | `NTFY_VISITOR_REQUEST_LIMIT_BURST`              | *number*                                            | 60                | Rate limiting: Allowed GET/PUT/POST requests per second, per visitor. This setting is the initial bucket of requests each visitor has                                                                                                   |
+| `visitor-request-limit-replenish`          | `NTFY_VISITOR_REQUEST_LIMIT_REPLENISH`          | *duration*                                          | 5s                | Rate limiting: Strongly related to `visitor-request-limit-burst`: The rate at which the bucket is refilled                                                                                                                              |
+| `visitor-request-limit-exempt-hosts`       | `NTFY_VISITOR_REQUEST_LIMIT_EXEMPT_HOSTS`       | *comma-separated host/IP/CIDR list*                 | -                 | Rate limiting: List of hostnames and IPs to be exempt from request rate limiting                                                                                                                                                        |
+| `visitor-subscription-limit`               | `NTFY_VISITOR_SUBSCRIPTION_LIMIT`               | *number*                                            | 30                | Rate limiting: Number of subscriptions per visitor (IP address)                                                                                                                                                                         |
+| `visitor-subscriber-rate-limiting`         | `NTFY_VISITOR_SUBSCRIBER_RATE_LIMITING`         | *bool*                                              | `false`           | Rate limiting: Enables subscriber-based rate limiting                                                                                                                                                                                   |
+| `visitor-topic-creation-limit-burst`       | `NTFY_VISITOR_TOPIC_CREATION_LIMIT_BURST`       | *number*                                            | 100               | Rate limiting: Initial bucket of new topic creations per visitor. 0 disables the limit.                                                                                                                                                 |
+| `visitor-topic-creation-limit-replenish`   | `NTFY_VISITOR_TOPIC_CREATION_LIMIT_REPLENISH`   | *duration*                                          | 1m                | Rate limiting: Rate at which the per-visitor topic-creation bucket is refilled (one new topic per x).                                                                                                                                   |
+| `visitor-prefix-bits-ipv4`                 | `NTFY_VISITOR_PREFIX_BITS_IPV4`                 | *number*                                            | 32                | Rate limiting: Number of bits to use for IPv4 visitor prefix, e.g. 24 for /24                                                                                                                                                           |
+| `visitor-prefix-bits-ipv6`                 | `NTFY_VISITOR_PREFIX_BITS_IPV6`                 | *number*                                            | 64                | Rate limiting: Number of bits to use for IPv6 visitor prefix, e.g. 48 for /48                                                                                                                                                           |
+| `web-root`                                 | `NTFY_WEB_ROOT`                                 | *path*, e.g. `/` or `/app`, or `disable`            | `/`               | Sets root of the web app (e.g. /, or /app), or disables it entirely (disable)                                                                                                                                                           |
+| `enable-signup`                            | `NTFY_ENABLE_SIGNUP`                            | *boolean* (`true` or `false`)                       | `false`           | Allows users to sign up via the web app, or API                                                                                                                                                                                         |
+| `enable-login`                             | `NTFY_ENABLE_LOGIN`                             | *boolean* (`true` or `false`)                       | `false`           | Allows users to log in via the web app, or API                                                                                                                                                                                          |
+| `enable-reservations`                      | `NTFY_ENABLE_RESERVATIONS`                      | *boolean* (`true` or `false`)                       | `false`           | Allows users to reserve topics (if their tier allows it)                                                                                                                                                                                |
+| `require-login`                            | `NTFY_REQUIRE_LOGIN`                            | *boolean* (`true` or `false`)                       | `false`           | All actions via the web app require a login                                                                                                                                                                                             |
+| `stripe-secret-key`                        | `NTFY_STRIPE_SECRET_KEY`                        | *string*                                            | -                 | Payments: Key used for the Stripe API communication, this enables payments                                                                                                                                                              |
+| `stripe-webhook-key`                       | `NTFY_STRIPE_WEBHOOK_KEY`                       | *string*                                            | -                 | Payments: Key required to validate the authenticity of incoming webhooks from Stripe                                                                                                                                                    |
+| `billing-contact`                          | `NTFY_BILLING_CONTACT`                          | *email address* or *website*                        | -                 | Payments: Email or website displayed in Upgrade dialog as a billing contact                                                                                                                                                             |
+| `web-push-public-key`                      | `NTFY_WEB_PUSH_PUBLIC_KEY`                      | *string*                                            | -                 | Web Push: Public Key. Run `ntfy webpush keys` to generate                                                                                                                                                                               |
+| `web-push-private-key`                     | `NTFY_WEB_PUSH_PRIVATE_KEY`                     | *string*                                            | -                 | Web Push: Private Key. Run `ntfy webpush keys` to generate                                                                                                                                                                              |
+| `web-push-file`                            | `NTFY_WEB_PUSH_FILE`                            | *string*                                            | -                 | Web Push: Database file that stores subscriptions                                                                                                                                                                                       |
+| `web-push-email-address`                   | `NTFY_WEB_PUSH_EMAIL_ADDRESS`                   | *string*                                            | -                 | Web Push: Sender email address                                                                                                                                                                                                          |
+| `web-push-startup-queries`                 | `NTFY_WEB_PUSH_STARTUP_QUERIES`                 | *string*                                            | -                 | Web Push: SQL queries to run against subscription database at startup                                                                                                                                                                   |
+| `web-push-expiry-duration`                 | `NTFY_WEB_PUSH_EXPIRY_DURATION`                 | *duration*                                          | 60d               | Web Push: Duration after which a subscription is considered stale and will be deleted. This is to prevent stale subscriptions.                                                                                                          |
+| `web-push-expiry-warning-duration`         | `NTFY_WEB_PUSH_EXPIRY_WARNING_DURATION`         | *duration*                                          | 55d               | Web Push: Duration after which a warning is sent to subscribers that their subscription will expire soon. This is to prevent stale subscriptions.                                                                                       |
+| `log-format`                               | `NTFY_LOG_FORMAT`                               | *string*                                            | `text`            | Defines the output format, can be text or json                                                                                                                                                                                          |
+| `log-file`                                 | `NTFY_LOG_FILE`                                 | *string*                                            | -                 | Defines the filename to write logs to. If this is not set, ntfy logs to stderr                                                                                                                                                          |
+| `log-level`                                | `NTFY_LOG_LEVEL`                                | *string*                                            | `info`            | Defines the default log level, can be one of trace, debug, info, warn or error                                                                                                                                                          |
 
 The format for a *duration* is: `<number>(smhd)`, e.g. 30s, 20m, 1h or 3d.   
 The format for a *size* is: `<number>(GMK)`, e.g. 1G, 200M or 4000k.
@@ -1867,7 +2396,8 @@ OPTIONS:
    --auth-file value, --auth_file value, -H value                                                                         auth database file used for access control [$NTFY_AUTH_FILE]
    --auth-startup-queries value, --auth_startup_queries value                                                             queries run when the auth database is initialized [$NTFY_AUTH_STARTUP_QUERIES]
    --auth-default-access value, --auth_default_access value, -p value                                                     default permissions if no matching entries in the auth database are found (default: "read-write") [$NTFY_AUTH_DEFAULT_ACCESS]
-   --attachment-cache-dir value, --attachment_cache_dir value                                                             cache directory for attached files [$NTFY_ATTACHMENT_CACHE_DIR]
+   --auth-access-cache, --auth_access_cache                                                                                enables the in-memory ACL cache (high-volume servers only) (default: false) [$NTFY_AUTH_ACCESS_CACHE]
+   --attachment-cache-dir value, --attachment_cache_dir value                                                             cache directory for attached files, or S3 URL (s3://ACCESS_KEY:SECRET_KEY@BUCKET[/PREFIX]?region=REGION[&endpoint=ENDPOINT][&disable_http2=true]) [$NTFY_ATTACHMENT_CACHE_DIR]
    --attachment-total-size-limit value, --attachment_total_size_limit value, -A value                                     limit of the on-disk attachment cache (default: "5G") [$NTFY_ATTACHMENT_TOTAL_SIZE_LIMIT]
    --attachment-file-size-limit value, --attachment_file_size_limit value, -Y value                                       per-file attachment size limit (e.g. 300k, 2M, 100M) (default: "15M") [$NTFY_ATTACHMENT_FILE_SIZE_LIMIT]
    --attachment-expiry-duration value, --attachment_expiry_duration value, -X value                                       duration after which uploaded attachments will be deleted (e.g. 3h, 20h) (default: "3h") [$NTFY_ATTACHMENT_EXPIRY_DURATION]
@@ -1904,6 +2434,8 @@ OPTIONS:
    --visitor-message-daily-limit value, --visitor_message_daily_limit value                                               max messages per visitor per day, derived from request limit if unset (default: 0) [$NTFY_VISITOR_MESSAGE_DAILY_LIMIT]
    --visitor-email-limit-burst value, --visitor_email_limit_burst value                                                   initial limit of e-mails per visitor (default: 16) [$NTFY_VISITOR_EMAIL_LIMIT_BURST]
    --visitor-email-limit-replenish value, --visitor_email_limit_replenish value                                           interval at which burst limit is replenished (one per x) (default: "1h") [$NTFY_VISITOR_EMAIL_LIMIT_REPLENISH]
+   --visitor-topic-creation-limit-burst value, --visitor_topic_creation_limit_burst value                                 burst of new topic creations per visitor (0 = disabled) (default: 100) [$NTFY_VISITOR_TOPIC_CREATION_LIMIT_BURST]
+   --visitor-topic-creation-limit-replenish value, --visitor_topic_creation_limit_replenish value                         interval at which topic-creation tokens are refilled (one per x) (default: "1m") [$NTFY_VISITOR_TOPIC_CREATION_LIMIT_REPLENISH]
    --visitor-prefix-bits-ipv4 value, --visitor_prefix_bits_ipv4 value                                                     number of bits of the IPv4 address to use for rate limiting (default: 32, full address) (default: 32) [$NTFY_VISITOR_PREFIX_BITS_IPV4]
    --visitor-prefix-bits-ipv6 value, --visitor_prefix_bits_ipv6 value                                                     number of bits of the IPv6 address to use for rate limiting (default: 64, /64 subnet) (default: 64) [$NTFY_VISITOR_PREFIX_BITS_IPV6]
    --behind-proxy, --behind_proxy, -P                                                                                     if set, use forwarded header (e.g. X-Forwarded-For, X-Client-IP) to determine visitor IP address (for rate limiting) (default: false) [$NTFY_BEHIND_PROXY]

docs/develop.md

@@ -255,6 +255,7 @@ Reference: <https://stackoverflow.com/questions/34160509/options-for-testing-ser
     go run main.go \
       --log-level debug \
       serve \
+        --base-url http://localhost \
         --web-push-public-key KEY \
         --web-push-private-key KEY \
         --web-push-email-address <email> \
@@ -340,10 +341,6 @@ Then either follow the steps for building with or without Firebase.
 Without Firebase, you may want to still change the default `app_base_url` in [values.xml](https://github.com/binwiederhier/ntfy-android/blob/main/app/src/main/res/values/values.xml)
 if you're self-hosting the server. Then run:
 ```
-# Remove Google dependencies (FCM)
-sed -i -e '/google-services/d' build.gradle
-sed -i -e '/google-services/d' app/build.gradle
-
 # To build an unsigned .apk (app/build/outputs/apk/fdroid/*.apk)
 ./gradlew assembleFdroidRelease
 
@@ -351,6 +348,8 @@ sed -i -e '/google-services/d' app/build.gradle
 ./gradlew bundleFdroidRelease
 ```
 
+The F-Droid flavor automatically excludes Google Services dependencies.
+
 ### Build Play flavor (FCM)
 !!! info
     I do build the ntfy Android app using IntelliJ IDEA (Android Studio), so I don't know if these Gradle commands will

docs/examples.md

@@ -661,6 +661,8 @@ Add the following function and alias to your `.bashrc` or `.bash_profile`:
        local token=$(< ~/.ntfy_token)  # Securely read the token
        local status_icon="$([ $exit_status -eq 0 ] && echo magic_wand || echo warning)"
        local last_command=$(history | tail -n1 | sed -e 's/^[[:space:]]*[0-9]\{1,\}[[:space:]]*//' -e 's/[;&|][[:space:]]*alert$//')
+       # for zsh users, use the same sed pattern but get the history differently.
+       # local last_command=$(history "$HISTCMD" | sed -e 's/^[[:space:]]*[0-9]\{1,\}[[:space:]]*//' -e 's/[;&|][[:space:]]*alert$//')
 
        curl -s -X POST "https://n.example.dev/alerts" \
            -H "Authorization: Bearer $token" \
@@ -692,4 +694,4 @@ To test failure notifications:
 false; alert  # Always fails (exit 1)
 ls --invalid; alert  # Invalid option
 cat nonexistent_file; alert  # File not found
-```
+```

docs/faq.md

@@ -71,7 +71,8 @@ The web app is a static website without a backend (other than the ntfy API). All
 cache and local storage. That means it does not need to be protected with a login screen, and it poses no additional 
 security risk. So technically, it does not need to be disabled.
 
-However, if you still want to disable it, you can do so with the `web-root: disable` option in the `server.yml` file. 
+However, if you still want, you can require login with the `require-login: true` option,
+or disable it with the `web-root: disable` option in the `server.yml` file. 
 
 Think of the ntfy web app like an Android/iOS app. It is freely available and accessible to anyone, yet useless without
 a proper backend. So as long as you secure your backend with ACLs, exposing the ntfy web app to the Internet is harmless.

docs/index.md

@@ -4,7 +4,7 @@ or POST requests. I use it to notify myself when scripts fail, or long-running c
 
 ## Step 1: Get the app
 <a href="https://play.google.com/store/apps/details?id=io.heckel.ntfy"><img width="170" src="static/img/badge-googleplay.png"></a>
-<a href="https://f-droid.org/en/packages/io.heckel.ntfy/"><img width="170" src="static/img/badge-fdroid.png"></a>
+<a href="https://f-droid.org/en/packages/io.heckel.ntfy/"><img width="170" src="static/img/badge-fdroid.svg"></a>
 <a href="https://apps.apple.com/us/app/ntfy/id1625396347"><img width="150" src="static/img/badge-appstore.png"></a>
 
 To [receive notifications on your phone](subscribe/phone.md), install the app, either via Google Play, App Store or F-Droid.

docs/install.md

@@ -28,42 +28,130 @@ resources to get started. _I am not affiliated with Kris or Alex, I just liked t
 Please check out the [releases page](https://github.com/binwiederhier/ntfy/releases) for binaries and
 deb/rpm packages.
 
+### Download and run
+The steps below allow you to download ntfy server and run it in a pinch. But it won't be enough to install it permanently
+as a service starting at boot time.
+
 === "x86_64/amd64"
     ```bash
-    wget https://github.com/binwiederhier/ntfy/releases/download/v2.15.0/ntfy_2.15.0_linux_amd64.tar.gz
-    tar zxvf ntfy_2.15.0_linux_amd64.tar.gz
-    sudo cp -a ntfy_2.15.0_linux_amd64/ntfy /usr/local/bin/ntfy
-    sudo mkdir /etc/ntfy && sudo cp ntfy_2.15.0_linux_amd64/{client,server}/*.yml /etc/ntfy
+    wget https://github.com/binwiederhier/ntfy/releases/download/v2.25.0/ntfy_2.25.0_linux_amd64.tar.gz
+    tar zxvf ntfy_2.25.0_linux_amd64.tar.gz
+    sudo cp -a ntfy_2.25.0_linux_amd64/ntfy /usr/local/bin/ntfy
+    sudo mkdir /etc/ntfy && sudo cp ntfy_2.25.0_linux_amd64/{client,server}/*.yml /etc/ntfy
     sudo ntfy serve
     ```
 
 === "armv6"
     ```bash
-    wget https://github.com/binwiederhier/ntfy/releases/download/v2.15.0/ntfy_2.15.0_linux_armv6.tar.gz
-    tar zxvf ntfy_2.15.0_linux_armv6.tar.gz
-    sudo cp -a ntfy_2.15.0_linux_armv6/ntfy /usr/bin/ntfy
-    sudo mkdir /etc/ntfy && sudo cp ntfy_2.15.0_linux_armv6/{client,server}/*.yml /etc/ntfy
+    wget https://github.com/binwiederhier/ntfy/releases/download/v2.25.0/ntfy_2.25.0_linux_armv6.tar.gz
+    tar zxvf ntfy_2.25.0_linux_armv6.tar.gz
+    sudo cp -a ntfy_2.25.0_linux_armv6/ntfy /usr/bin/ntfy
+    sudo mkdir /etc/ntfy && sudo cp ntfy_2.25.0_linux_armv6/{client,server}/*.yml /etc/ntfy
     sudo ntfy serve
     ```
 
 === "armv7/armhf"
     ```bash
-    wget https://github.com/binwiederhier/ntfy/releases/download/v2.15.0/ntfy_2.15.0_linux_armv7.tar.gz
-    tar zxvf ntfy_2.15.0_linux_armv7.tar.gz
-    sudo cp -a ntfy_2.15.0_linux_armv7/ntfy /usr/bin/ntfy
-    sudo mkdir /etc/ntfy && sudo cp ntfy_2.15.0_linux_armv7/{client,server}/*.yml /etc/ntfy
+    wget https://github.com/binwiederhier/ntfy/releases/download/v2.25.0/ntfy_2.25.0_linux_armv7.tar.gz
+    tar zxvf ntfy_2.25.0_linux_armv7.tar.gz
+    sudo cp -a ntfy_2.25.0_linux_armv7/ntfy /usr/bin/ntfy
+    sudo mkdir /etc/ntfy && sudo cp ntfy_2.25.0_linux_armv7/{client,server}/*.yml /etc/ntfy
     sudo ntfy serve
     ```
 
 === "arm64"
     ```bash
-    wget https://github.com/binwiederhier/ntfy/releases/download/v2.15.0/ntfy_2.15.0_linux_arm64.tar.gz
-    tar zxvf ntfy_2.15.0_linux_arm64.tar.gz
-    sudo cp -a ntfy_2.15.0_linux_arm64/ntfy /usr/bin/ntfy
-    sudo mkdir /etc/ntfy && sudo cp ntfy_2.15.0_linux_arm64/{client,server}/*.yml /etc/ntfy
+    wget https://github.com/binwiederhier/ntfy/releases/download/v2.25.0/ntfy_2.25.0_linux_arm64.tar.gz
+    tar zxvf ntfy_2.25.0_linux_arm64.tar.gz
+    sudo cp -a ntfy_2.25.0_linux_arm64/ntfy /usr/bin/ntfy
+    sudo mkdir /etc/ntfy && sudo cp ntfy_2.25.0_linux_arm64/{client,server}/*.yml /etc/ntfy
     sudo ntfy serve
     ```
 
+### Install as a service
+If you want to install ntfy server permanently as a service, and your OS/distribution of choice doesn't offer a package,
+there are a few more steps to follow.
+
+Create the ntfy user and group:
+```bash
+useradd --system --home-dir /var/lib/ntfy --shell /bin/false --comment "User for the simple HTTP-based pub-sub notification service" ntfy
+```
+
+Depending on your init system, the following steps will diverge.
+
+#### On systemd systems
+Install the ntfy server unit file (which contains parameters to start the service at boot time):
+
+=== "x86_64/amd64"
+    ```bash
+    sudo mv ntfy_2.25.0_linux_amd64/server/ntfy.service /etc/systemd/system/
+    sudo chmod 644 /etc/systemd/system/ntfy.service
+    ```
+
+=== "armv6"
+    ```bash
+    sudo mv ntfy_2.25.0_linux_armv6/server/ntfy.service /etc/systemd/system/
+    sudo chmod 644 /etc/systemd/system/ntfy.service
+    ```
+
+=== "armv7/armhf"
+    ```bash
+    sudo mv ntfy_2.25.0_linux_armv7/server/ntfy.service /etc/systemd/system/
+    sudo chmod 644 /etc/systemd/system/ntfy.service
+    ```
+
+=== "arm64"
+    ```bash
+    sudo mv ntfy_2.25.0_linux_arm64/server/ntfy.service /etc/systemd/system/
+    sudo chmod 644 /etc/systemd/system/ntfy.service
+    ```
+
+Then notify systemd we have added a new service and start the service:
+
+```bash
+sudo systemctl daemon-reload
+sudo systemctl start ntfy
+```
+
+#### On OpenRC systems
+Install the ntfy server service script:
+
+=== "x86_64/amd64"
+    ```bash
+    sudo mv ntfy_2.25.0_linux_amd64/server/ntfy.openrc /etc/init.d/ntfy
+    sudo chmod 755 /etc/init.d/ntfy
+    ```
+
+=== "armv6"
+    ```bash
+    sudo mv ntfy_2.25.0_linux_armv6/server/ntfy.openrc /etc/init.d/ntfy
+    sudo chmod 755 /etc/init.d/ntfy
+    ```
+
+=== "armv7/armhf"
+    ```bash
+    sudo mv ntfy_2.25.0_linux_armv7/server/ntfy.openrc /etc/init.d/ntfy
+    sudo chmod 755 /etc/init.d/ntfy
+    ```
+
+=== "arm64"
+    ```bash
+    sudo mv ntfy_2.25.0_linux_arm64/server/ntfy.openrc /etc/init.d/ntfy
+    sudo chmod 755 /etc/init.d/ntfy
+    ```
+
+Start the ntfy server service:
+
+```bash
+sudo rc-service ntfy start
+```
+
+Add the ntfy server service to the default runlevel (so that it starts at boot time):
+
+```bash
+sudo rc-update add ntfy default
+```
+
 ## Debian/Ubuntu repository
 
 !!! info
@@ -71,7 +159,7 @@ deb/rpm packages.
     The old repository [archive.heckel.io](https://archive.heckel.io/apt) is still available for now, but will likely
     go away soon. I suspect I will phase it out some time in early 2026.
 
-Installation via Debian/Ubuntu repository (fingerprint `55BA 774A 6F5E E674 31E4  6B7C CFDB 962D 4F1E C4AF`):
+Installation via Debian/Ubuntu repository (fingerprint `55BA 774A 6F5E E674 31E4  B6B7 CFDB 962D 4F1E C4AF`):
 
 === "x86_64/amd64"
     ```bash
@@ -116,7 +204,7 @@ Manually installing the .deb file:
 
 === "x86_64/amd64"
     ```bash
-    wget https://github.com/binwiederhier/ntfy/releases/download/v2.15.0/ntfy_2.15.0_linux_amd64.deb
+    wget https://github.com/binwiederhier/ntfy/releases/download/v2.25.0/ntfy_2.25.0_linux_amd64.deb
     sudo dpkg -i ntfy_*.deb
     sudo systemctl enable ntfy
     sudo systemctl start ntfy
@@ -124,7 +212,7 @@ Manually installing the .deb file:
 
 === "armv6"
     ```bash
-    wget https://github.com/binwiederhier/ntfy/releases/download/v2.15.0/ntfy_2.15.0_linux_armv6.deb
+    wget https://github.com/binwiederhier/ntfy/releases/download/v2.25.0/ntfy_2.25.0_linux_armv6.deb
     sudo dpkg -i ntfy_*.deb
     sudo systemctl enable ntfy
     sudo systemctl start ntfy
@@ -132,7 +220,7 @@ Manually installing the .deb file:
 
 === "armv7/armhf"
     ```bash
-    wget https://github.com/binwiederhier/ntfy/releases/download/v2.15.0/ntfy_2.15.0_linux_armv7.deb
+    wget https://github.com/binwiederhier/ntfy/releases/download/v2.25.0/ntfy_2.25.0_linux_armv7.deb
     sudo dpkg -i ntfy_*.deb
     sudo systemctl enable ntfy
     sudo systemctl start ntfy
@@ -140,7 +228,7 @@ Manually installing the .deb file:
 
 === "arm64"
     ```bash
-    wget https://github.com/binwiederhier/ntfy/releases/download/v2.15.0/ntfy_2.15.0_linux_arm64.deb
+    wget https://github.com/binwiederhier/ntfy/releases/download/v2.25.0/ntfy_2.25.0_linux_arm64.deb
     sudo dpkg -i ntfy_*.deb
     sudo systemctl enable ntfy
     sudo systemctl start ntfy
@@ -150,33 +238,35 @@ Manually installing the .deb file:
 
 === "x86_64/amd64"
     ```bash
-    sudo rpm -ivh https://github.com/binwiederhier/ntfy/releases/download/v2.15.0/ntfy_2.15.0_linux_amd64.rpm
+    sudo rpm -ivh https://github.com/binwiederhier/ntfy/releases/download/v2.25.0/ntfy_2.25.0_linux_amd64.rpm
     sudo systemctl enable ntfy 
     sudo systemctl start ntfy
     ```
 
 === "armv6"
     ```bash
-    sudo rpm -ivh https://github.com/binwiederhier/ntfy/releases/download/v2.15.0/ntfy_2.15.0_linux_armv6.rpm
+    sudo rpm -ivh https://github.com/binwiederhier/ntfy/releases/download/v2.25.0/ntfy_2.25.0_linux_armv6.rpm
     sudo systemctl enable ntfy
     sudo systemctl start ntfy
     ```
 
 === "armv7/armhf"
     ```bash
-    sudo rpm -ivh https://github.com/binwiederhier/ntfy/releases/download/v2.15.0/ntfy_2.15.0_linux_armv7.rpm
+    sudo rpm -ivh https://github.com/binwiederhier/ntfy/releases/download/v2.25.0/ntfy_2.25.0_linux_armv7.rpm
     sudo systemctl enable ntfy 
     sudo systemctl start ntfy
     ```
 
 === "arm64"
     ```bash
-    sudo rpm -ivh https://github.com/binwiederhier/ntfy/releases/download/v2.15.0/ntfy_2.15.0_linux_arm64.rpm
+    sudo rpm -ivh https://github.com/binwiederhier/ntfy/releases/download/v2.25.0/ntfy_2.25.0_linux_arm64.rpm
     sudo systemctl enable ntfy 
     sudo systemctl start ntfy
     ```
 
 ## Arch Linux
+<span class="community-badge" title="This package is maintained by the community, not the ntfy developers"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M11 7h2v2h-2zm0 4h2v6h-2zm1-9C6.48 2 2 6.48 2 12s4.48 10 10 10 10-4.48 10-10S17.52 2 12 2zm0 18c-4.41 0-8-3.59-8-8s3.59-8 8-8 8 3.59 8 8-3.59 8-8 8z"/></svg> Community maintained</span>
+
 ntfy can be installed using an [AUR package](https://aur.archlinux.org/packages/ntfysh-bin/). 
 You can use an [AUR helper](https://wiki.archlinux.org/title/AUR_helpers) like `paru`, `yay` or others to download, 
 build and install ntfy and keep it up to date.
@@ -191,7 +281,9 @@ cd ntfysh-bin
 makepkg -si
 ```
 
-## NixOS / Nix
+## NixOS / Nix 
+<span class="community-badge" title="This package is maintained by the community, not the ntfy developers"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M11 7h2v2h-2zm0 4h2v6h-2zm1-9C6.48 2 2 6.48 2 12s4.48 10 10 10 10-4.48 10-10S17.52 2 12 2zm0 18c-4.41 0-8-3.59-8-8s3.59-8 8-8 8 3.59 8 8-3.59 8-8 8z"/></svg> Community maintained</span>
+
 ntfy is packaged in nixpkgs as `ntfy-sh`. It can be installed by adding the package name to the configuration file and calling `nixos-rebuild`. Alternatively, the following command can be used to install ntfy in the current user environment:
 ```
 nix-env -iA ntfy-sh
@@ -199,20 +291,28 @@ nix-env -iA ntfy-sh
 
 NixOS also supports [declarative setup of the ntfy server](https://search.nixos.org/options?channel=unstable&show=services.ntfy-sh.enable&from=0&size=50&sort=relevance&type=packages&query=ntfy). 
 
+## FreeBSD
+<span class="community-badge" title="This package is maintained by the community, not the ntfy developers"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M11 7h2v2h-2zm0 4h2v6h-2zm1-9C6.48 2 2 6.48 2 12s4.48 10 10 10 10-4.48 10-10S17.52 2 12 2zm0 18c-4.41 0-8-3.59-8-8s3.59-8 8-8 8 3.59 8 8-3.59 8-8 8z"/></svg> Community maintained</span>
+
+ntfy is ported to FreeBSD and available via the ports collection as [sysutils/go-ntfy](https://www.freshports.org/sysutils/go-ntfy/). You can install it via `pkg`:
+```
+pkg install go-ntfy
+```
+
 ## macOS
 The [ntfy CLI](subscribe/cli.md) (`ntfy publish` and `ntfy subscribe` only) is supported on macOS as well. 
-To install, please [download the tarball](https://github.com/binwiederhier/ntfy/releases/download/v2.15.0/ntfy_2.15.0_darwin_all.tar.gz), 
+To install, please [download the tarball](https://github.com/binwiederhier/ntfy/releases/download/v2.25.0/ntfy_2.25.0_darwin_all.tar.gz), 
 extract it and place it somewhere in your `PATH` (e.g. `/usr/local/bin/ntfy`). 
 
 If run as `root`, ntfy will look for its config at `/etc/ntfy/client.yml`. For all other users, it'll look for it at 
 `~/Library/Application Support/ntfy/client.yml` (sample included in the tarball).
 
 ```bash
-curl -L https://github.com/binwiederhier/ntfy/releases/download/v2.15.0/ntfy_2.15.0_darwin_all.tar.gz > ntfy_2.15.0_darwin_all.tar.gz
-tar zxvf ntfy_2.15.0_darwin_all.tar.gz
-sudo cp -a ntfy_2.15.0_darwin_all/ntfy /usr/local/bin/ntfy
+curl -L https://github.com/binwiederhier/ntfy/releases/download/v2.25.0/ntfy_2.25.0_darwin_all.tar.gz > ntfy_2.25.0_darwin_all.tar.gz
+tar zxvf ntfy_2.25.0_darwin_all.tar.gz
+sudo cp -a ntfy_2.25.0_darwin_all/ntfy /usr/local/bin/ntfy
 mkdir ~/Library/Application\ Support/ntfy 
-cp ntfy_2.15.0_darwin_all/client/client.yml ~/Library/Application\ Support/ntfy/client.yml
+cp ntfy_2.25.0_darwin_all/client/client.yml ~/Library/Application\ Support/ntfy/client.yml
 ntfy --help
 ```
 
@@ -221,6 +321,8 @@ ntfy --help
     development as well. Check out the [build instructions](develop.md) for details.
 
 ## Homebrew
+<span class="community-badge" title="This package is maintained by the community, not the ntfy developers"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M11 7h2v2h-2zm0 4h2v6h-2zm1-9C6.48 2 2 6.48 2 12s4.48 10 10 10 10-4.48 10-10S17.52 2 12 2zm0 18c-4.41 0-8-3.59-8-8s3.59-8 8-8 8 3.59 8 8-3.59 8-8 8z"/></svg> Community maintained</span>
+
 To install the [ntfy CLI](subscribe/cli.md) (`ntfy publish` and `ntfy subscribe` only) via Homebrew (Linux and macOS),
 simply run:
 ```
@@ -231,7 +333,7 @@ brew install ntfy
 The ntfy server and CLI are fully supported on Windows. You can run the ntfy server directly or as a Windows service.
 To install, you can either
 
-* [Download the latest ZIP](https://github.com/binwiederhier/ntfy/releases/download/v2.15.0/ntfy_2.15.0_windows_amd64.zip),
+* [Download the latest ZIP](https://github.com/binwiederhier/ntfy/releases/download/v2.25.0/ntfy_2.25.0_windows_amd64.zip),
 extract it and place the `ntfy.exe` binary somewhere in your `%Path%`. 
 * Or install ntfy from the [Scoop](https://scoop.sh) main repository via `scoop install ntfy`
 
@@ -553,18 +655,18 @@ kubectl apply -k /ntfy
                       cpu: 150m
                       memory: 150Mi
               volumeMounts:
-                  - mountPath: /etc/ntfy
-                    subPath: server.yml
-                    name: config-volume # generated vie configMapGenerator from kustomization file
-                  - mountPath: /var/cache/ntfy
-                    name: cache-volume #cache volume mounted to persistent volume
-            volumes:
-              - name: config-volume
-                configMap:  # uses configmap generator to parse server.yml to configmap
-                  name: server-config
-              - name: cache-volume
-                persistentVolumeClaim: # stores /cache/ntfy in defined pv
-                  claimName: ntfy-pvc
+                - mountPath: /etc/ntfy/server.yml
+                  subPath: server.yml
+                  name: config-volume # generated via configMapGenerator from kustomization file
+                - mountPath: /var/cache/ntfy
+                  name: cache-volume # cache volume mounted to persistent volume
+          volumes:
+            - name: config-volume
+              configMap: # uses configmap generator to parse server.yml to configmap
+                name: server-config
+            - name: cache-volume
+              persistentVolumeClaim: # stores /cache/ntfy in defined pv
+                claimName: ntfy-pvc
     ```
   
 === "ntfy-pvc.yaml"

docs/integrations.md

@@ -89,6 +89,7 @@ I've added a ⭐ to projects or posts that have a significant following, or had
 - [ntfy-desktop](https://codeberg.org/zvava/ntfy-desktop) - Cross-platform desktop application for ntfy
 - [ntfy-desktop](https://github.com/Aetherinox/ntfy-desktop) - Desktop client for Windows, Linux, and MacOS with push notifications
 - [ntfy svelte front-end](https://github.com/novatorem/Ntfy) - Front-end built with svelte
+- [ntfy Desktop (Windows)](https://github.com/simoneferrari/ntfy-desktop) - Native Windows desktop client with multi-server support, toast notifications and message history, built with WPF and .NET (C#)
 - [wio-ntfy-ticker](https://github.com/nachotp/wio-ntfy-ticker) - Ticker display for a ntfy.sh topic
 - [ntfysh-windows](https://github.com/mshafer1/ntfysh-windows) - A ntfy client for Windows Desktop
 - [ntfyr](https://github.com/haxwithaxe/ntfyr) - A simple commandline tool to send notifications to ntfy
@@ -98,6 +99,7 @@ I've added a ⭐ to projects or posts that have a significant following, or had
 - [Daily Fact Ntfy](https://github.com/thiswillbeyourgithub/Daily_Fact_Ntfy) - Generate [llm](https://github.com/simonw/llm) generated fact every day about any topic you're interested in.
 - [ntfyexec](https://github.com/alecthomas/ntfyexec) - Send a notification through ntfy.sh if a command fails
 - [Ntfy Desktop](https://github.com/emmaexe/ntfyDesktop) - Fully featured desktop client for Linux, built with Qt and C++.
+- [Ntfy App](https://github.com/rubix-studios-pty-ltd/ntfy-app) - Tauri/Rust desktop client for Windows, Linux and MacOS with push notifications.
 
 ## Projects + scripts 
 
@@ -107,6 +109,7 @@ I've added a ⭐ to projects or posts that have a significant following, or had
 - [ntfy-long-zsh-command](https://github.com/robfox92/ntfy-long-zsh-command) - Notifies you once a long-running command completes (zsh)
 - [ntfy-shellscripts](https://github.com/nickexyz/ntfy-shellscripts) - A few scripts for the ntfy project (Shell)
 - [alertmanager-ntfy-relay](https://github.com/therobbielee/alertmanager-ntfy-relay) - ntfy.sh relay for Alertmanager (Go)
+- [oci-notifications-ntfy-relay](https://github.com/Ryan02I5/oci-notifications-ntfy-relay) - Minimal OCI Notifications / Oracle Functions relay to ntfy topics (Python)
 - [QuickStatus](https://github.com/corneliusroot/QuickStatus) - A shell script to alert to any immediate problems upon login (Shell)
 - [ntfy.el](https://github.com/shombando/ntfy) - Send notifications from Emacs (Emacs)
 - [backup-projects](https://gist.github.com/anthonyaxenov/826ba65abbabd5b00196bc3e6af76002) - Stupidly simple backup script for own projects (Shell)
@@ -182,9 +185,15 @@ I've added a ⭐ to projects or posts that have a significant following, or had
 - [ntfy-bridge](https://github.com/AlexGaudon/ntfy-bridge) - An application to bridge Discord messages (or webhooks) to ntfy.
 - [ntailfy](https://github.com/leukosaima/ntailfy) - ntfy notifications when Tailscale devices connect/disconnect (Go)
 - [BRun](https://github.com/cbrake/brun) - Native Linux automation platform connecting triggers to actions without containers (Go)
+- [Uptime Monitor](https://uptime-monitor.org) - Self-hosted, enterprise-grade uptime monitoring and alerting system (TS)
+- [send_to_ntfy_extension](https://github.com/TheDuffman85/send_to_ntfy_extension/) ⭐ - A browser extension to send the notifications to ntfy (JS)
+- [SIA-Server](https://github.com/ZebMcKayhan/SIA-Server) - A light weight, self-hosted notification Server for Honywell Galaxy Flex alarm systems (Python)
+- [zabbix-ntfy](https://github.com/torgrimt/zabbix-ntfy) - Zabbix server Mediatype to add support for ntfy.sh services
+- [Rubix Notify](https://wordpress.org/plugins/rubix-notify) - WordPress Integration with ntfy (PHP + React).
 
 ## Blog + forum posts
 
+- [Push alerts for WHM using ntfy](https://rubixstudios.com.au/insights/push-alerts-for-whm-using-ntfy) - rubixstudios.com.au - 5/2026
 - [Device notifications via HTTP with ntfy](https://alistairshepherd.uk/writing/ntfy/) - alistairshepherd.uk - 6/2025
 - [Notifications about (almost) anything with ntfy.sh](https://hamatti.org/posts/notifications-about-almost-anything-with-ntfy-sh/) - hamatti.org - 6/2025
 - [I set up a self-hosted notification service for everything, and I'll never look back](https://www.xda-developers.com/set-up-self-hosted-notification-service/) ⭐ - xda-developers.com - 5/2025
@@ -302,7 +311,7 @@ ntfy community. Thanks to everyone running a public server. **You guys rock!**
 | URL                                               | Country            |
 |---------------------------------------------------|--------------------|
 | [ntfy.sh](https://ntfy.sh/) (*Official*)          | 🇺🇸 United States |
-| [ntfy.tedomum.net](https://ntfy.tedomum.net/)     | 🇫🇷 France        |
+| [ntfy.tedomum.fr](https://ntfy.tedomum.fr/)     | 🇫🇷 France        |
 | [ntfy.jae.fi](https://ntfy.jae.fi/)               | 🇫🇮 Finland       |
 | [ntfy.adminforge.de](https://ntfy.adminforge.de/) | 🇩🇪 Germany       |
 | [ntfy.envs.net](https://ntfy.envs.net)            | 🇩🇪 Germany       |

docs/privacy.md

@@ -1,6 +1,6 @@
 # Privacy policy
 
-**Last updated:** January 2, 2026
+**Last updated:** June 15, 2026
 
 This privacy policy describes how ntfy ("we", "us", or "our") collects, uses, and handles your information
 when you use the ntfy.sh service, web app, and mobile applications (Android and iOS).
@@ -19,7 +19,9 @@ If you create an account on ntfy.sh, we collect:
 
 - **Username** - A unique identifier you choose
 - **Password** - Stored as a secure bcrypt hash (we never store your plaintext password)
-- **Email address** - Only if you subscribe to a paid plan (for billing purposes)
+- **Email address** - If you add an email address to your account for account recovery and password resets, for use
+  with the email notification feature, or if you subscribe to a paid plan (for billing purposes via Stripe). Email
+  addresses you add to your account are verified by sending a confirmation link.
 - **Phone number** - Only if you enable the phone call notification feature (verified via SMS/call)
 
 You can use ntfy without creating an account. Anonymous usage is fully supported.
@@ -76,9 +78,10 @@ Your phone number is shared with Twilio to deliver these services. Twilio's
 
 ### Amazon SES (email delivery)
 
-If you use the email notification feature (`X-Email` header), we use Amazon Simple Email Service (SES) to 
-deliver emails. The recipient email address and message content are transmitted through Amazon's infrastructure. 
-Amazon's [privacy policy](https://aws.amazon.com/privacy/) applies.
+If you use the email notification feature (`X-Email` header), or when ntfy sends account-related emails (email 
+address verification and password reset links), we use Amazon Simple Email Service (SES) to deliver emails. The 
+recipient email address and message content are transmitted through Amazon's infrastructure. Amazon's 
+[privacy policy](https://aws.amazon.com/privacy/) applies.
 
 ### Stripe (payments)
 
@@ -143,6 +146,7 @@ No cookies are used for tracking. The web app does not have a backend beyond the
 | Attachments            | 3 hours (configurable by server operators)        |
 | User accounts          | Until you delete your account                     |
 | Access tokens          | Until you revoke them or delete your account      |
+| Email addresses        | Until you remove them or delete your account      |
 | Phone numbers          | Until you remove them or delete your account      |
 | Web push subscriptions | 60 days of inactivity, then automatically removed |
 | Server logs            | Varies; debugging logs are typically temporary    |

docs/releases.md

@@ -4,14 +4,391 @@ and the [ntfy Android app](https://github.com/binwiederhier/ntfy-android/release
 
 ## Current stable releases
 
-| Component        | Version | Release date |
-|------------------|---------|--------------|
-| ntfy server      | v2.15.0 | Nov 16, 2025 |
-| ntfy Android app | v1.21.1 | Jan 6, 2025  |
-| ntfy iOS app     | v1.3    | Nov 26, 2023 |
+| Component        | Version | Release date  |
+|------------------|---------|---------------|
+| ntfy server      | v2.25.0 | June 24, 2026 |
+| ntfy Android app | v1.24.0 | Mar 5, 2026   |
+| ntfy iOS app     | v1.7.0  | May 30, 2026  |
 
 Please check out the release notes for [upcoming releases](#not-released-yet) below.
 
+## ntfy server v2.25.0
+Released June 24, 2026
+
+This release adds **password reset** via email, and reworks email verification to use durable,
+link-based magic links (replacing the old in-memory 6-digit codes). Email stays optional at
+signup; a user can reset their password only once they have a verified "primary" (recovery)
+email.
+
+All of this work is probably not useful for self-hosters, but it hopefully will be useful for me,
+since I do have to reset accounts on a regular basis.
+
+**Security issues:**
+
+* Generate access tokens, IDs, and magic-link tokens with a cryptographically secure RNG (`crypto/rand`) instead of a clock-seeded PRNG
+
+**Features:**
+
+* Add password reset via emailed magic link, with a "Forgot password" link on the login page and a `ntfy user reset-pass` CLI command for admins
+* Rework email verification to use durable, single-use, expiring magic links instead of in-memory 6-digit codes, and add a "primary" email (used for account recovery and as the `X-Email: yes` target) with verified/unverified state in the account UI
+* You can now clear/read messages and delete messages with a GET request ([#1771](https://github.com/binwiederhier/ntfy/issues/1771), thanks to [@lemmi](https://github.com/lemmi) for reporting and to [@wunter8](https://github.com/wunter8) for implementing)
+* Add a reload button to the web app's action bar when running as an installed PWA, which clears the service worker caches and hard-refreshes the app
+* Add a "Back to app" link to the web app's login, signup, and password-reset pages (alongside the existing links), which previously had no way back to the app
+
+**Bug fixes + maintenance:**
+
+* `X-Email: yes` (also `true`/`1`) now sends to your primary verified email regardless of the `smtp-sender-verify` setting (previously it was rejected unless verification was enabled); it requires being logged in with a verified address
+* Grant users full access to their own sync topic (`st_...`) so cross-device subscription sync works under `auth-default-access: deny-all` ([#733](https://github.com/binwiederhier/ntfy/issues/733), [#1795](https://github.com/binwiederhier/ntfy/pull/1795), thanks to [@lmorchard](https://github.com/lmorchard) for the contribution)
+* Support HTTP (non-TLS) S3-compatible endpoints by preserving the endpoint scheme, e.g. for a local MinIO instance ([#1794](https://github.com/binwiederhier/ntfy/pull/1794), [#1734](https://github.com/binwiederhier/ntfy/issues/1734), thanks to [@sskender](https://github.com/sskender) for the contribution, and [@Kernald](https://github.com/Kernald) for reporting)
+* Stop silently stripping spaces from passwords while typing in the web app's login, signup, and password-reset forms ([#1246](https://github.com/binwiederhier/ntfy/issues/1246), thanks to [@aldem](https://github.com/aldem) for reporting)
+* Update web app dependencies, including major-version upgrades to Vite (6 -> 8, now Rolldown-based), Material UI (5 -> 9), and Dexie (3 -> 4) ([#1800](https://github.com/binwiederhier/ntfy/pull/1800), [#1764](https://github.com/binwiederhier/ntfy/pull/1764), [#1767](https://github.com/binwiederhier/ntfy/pull/1767), [#1762](https://github.com/binwiederhier/ntfy/pull/1762), [#1766](https://github.com/binwiederhier/ntfy/pull/1766), [#1765](https://github.com/binwiederhier/ntfy/pull/1765), thanks Dependabot)
+* Play notification sounds in the web app even when the Notification API is unavailable, e.g. over plain HTTP or in browsers without notification support ([#1772](https://github.com/binwiederhier/ntfy/pull/1772), thanks to [@mitya12342](https://github.com/mitya12342) for the contribution)
+* Stop escaping `<`, `>`, and `&` as `\u003c`/`\u003e`/`\u0026` in JSON responses ([#1511](https://github.com/binwiederhier/ntfy/issues/1511), [#1512](https://github.com/binwiederhier/ntfy/pull/1512), thanks to [@wunter8](https://github.com/wunter8) for the contribution)
+* Fix the web app navbar not reflecting a topic reservation (lock icon, and "Reserve topic" -> "Change reservation"/"Remove reservation" menu) until a page reload, by persisting reservation and display-name changes onto already-subscribed topics during account sync
+* Reduce the web app's initial bundle size by ~300 KB (~50 KB gzipped) by lazy-loading the emoji picker dataset and the Markdown renderer, and by importing Material UI icons individually
+
+## ntfy server v2.24.0
+Released June 4, 2026
+
+The main feature for this release is an in-memory ACL cache (`auth-access-cache`) that can help bring down the read load
+on the production database. The topic authorization queries are consistently the highest ranking queries on the database,
+so this will help quite a bit. The current database load is quite low, but I'm expecting it to increase as more users join
+and use ntfy.
+
+**Security issues:**
+
+* Fix case-insensitive ACL topic matching on SQLite: an access control rule for `secret` no longer also matches a request for `SECRET`. SQLite's `LIKE` is case-insensitive for ASCII by default. PostgreSQL was unaffected. It's honestly incredible that this issue remained undetected for so long, especially while ntfy.sh was running on SQLite (it now runs on PostgreSQL).
+
+**Features:**
+
+* Add opt-in in-memory ACL cache (`auth-access-cache`) that serves topic authorization without a database round-trip; off by default, intended for high-volume servers
+* Add `ntfy --version` flag to the CLI ([#1722](https://github.com/binwiederhier/ntfy/issues/1722), [#1748](https://github.com/binwiederhier/ntfy/pull/1748), thanks to [@sskender](https://github.com/sskender) for the contribution, and [@Saucy9607](https://github.com/Saucy9607) for reporting)
+
+**Bug fixes + maintenance:**
+
+* Extend account token automatically from the PWA service worker, so installed PWAs don't get logged out ([#1669](https://github.com/binwiederhier/ntfy/pull/1669), [#1203](https://github.com/binwiederhier/ntfy/issues/1203), [#1533](https://github.com/binwiederhier/ntfy/issues/1533), thanks to [@nihalgonsalves](https://github.com/nihalgonsalves) for the contribution)
+* Fix `rel` attribute on auto-linked notification URLs so `noreferrer`/`noopener` are actually applied ([#1720](https://github.com/binwiederhier/ntfy/pull/1720), thanks to [@dmitrylyzo](https://github.com/dmitrylyzo) for the contribution)
+* Add systemd sandboxing/hardening to the `ntfy.service` unit ([#1467](https://github.com/binwiederhier/ntfy/pull/1467), thanks to [@Velocifyer](https://github.com/Velocifyer) for the contribution)
+* Fix `cmd` package build on macOS (darwin) so the server compiles from source ([#1631](https://github.com/binwiederhier/ntfy/issues/1631), [#1696](https://github.com/binwiederhier/ntfy/pull/1696), thanks to [@ShipItAndPray](https://github.com/ShipItAndPray) for the contribution, and [@XYenon](https://github.com/XYenon) for reporting)
+
+## ntfy iOS app v1.7.0
+Released May 30, 2026
+
+This release brings **image and attachment support** to the iOS app, finally closing one of the longest-standing iOS
+feature gaps. Images sent via the `Attach` header (or as a PUT body) are now previewed inline in the notification banner
+and inside the app, and other attachments can be downloaded, previewed via Quick Look, and shared from the notification
+row. There's also a new "Download attachments" setting to control auto-download by size.
+
+**Features:**
+
+* Show image previews in notifications and inline in the notification list, with tap-to-zoom Quick Look preview and share sheet ([ntfy-ios#40](https://github.com/binwiederhier/ntfy-ios/pull/40), [#276](https://github.com/binwiederhier/ntfy/issues/276), [#1226](https://github.com/binwiederhier/ntfy/issues/1226), thanks to [@am7590](https://github.com/am7590) for the contribution)
+* Download non-image attachments on demand with progress indication, persist them locally, and reuse files already fetched by the notification service extension ([ntfy-ios#40](https://github.com/binwiederhier/ntfy-ios/pull/40), thanks to [@am7590](https://github.com/am7590) for the contribution)
+* Add "Download attachments" setting with size thresholds (Never, Under 100 KB / 500 KB / 1 MB / 5 MB / 10 MB / 50 MB, Always) to control automatic attachment downloads ([ntfy-ios#40](https://github.com/binwiederhier/ntfy-ios/pull/40), thanks to [@am7590](https://github.com/am7590) for the contribution)
+
+**Bug fixes + maintenance:**
+
+* Improve background download reliability so attachments continue downloading when the app is suspended ([ntfy-ios#40](https://github.com/binwiederhier/ntfy-ios/pull/40), thanks to [@am7590](https://github.com/am7590) for the contribution)
+* Reorganize notification and subscription views into their own folders and split out `NotificationRowView` for readability ([ntfy-ios#40](https://github.com/binwiederhier/ntfy-ios/pull/40), thanks to [@am7590](https://github.com/am7590) for the contribution)
+
+## ntfy server v2.23.0
+Released May 17, 2026
+
+**Features:**
+
+* Add per-visitor rate limit on new topic creations (`visitor-topic-creation-limit-burst` / `visitor-topic-creation-limit-replenish`, defaults 100 burst / 1m replenish) to mitigate topic-enumeration / squatting attacks that inflate the in-memory topic map
+
+**Bug fixes + maintenance:**
+
+* Remove `stacktrace-js`, `stacktrace-gps`, `humanize-duration`, and `js-base64` from the web app to reduce dependency and security footprint
+* Restrict the publish dialog's local file preview to safe image types (png/jpg/gif/webp) to prevent same-origin script execution from blob URLs when previewing a crafted SVG ([GHSA-j8hr-p342-xrmh](https://github.com/binwiederhier/ntfy/security/advisories/GHSA-j8hr-p342-xrmh), thanks to [@Venukamatchi](https://github.com/Venukamatchi) for reporting)
+
+## ntfy iOS app v1.6.0
+Released May 12, 2026
+
+**Bug fixes + maintenance:**
+
+* Fix crash in iOS v1.5.1 ([#1736](https://github.com/binwiederhier/ntfy/issues/1736), thanks to [@russ-who](https://github.com/russ-who) for reporting and [@am7590](https://github.com/am7590) for fixing)
+
+**Features:**
+
+* Tap a notification to open its click URL, or copy the message text if no click URL is set; inline URLs in message text are now tappable as well ([ntfy-ios#37](https://github.com/binwiederhier/ntfy-ios/pull/37), thanks to [@am7590](https://github.com/am7590) for the contribution)
+
+## ntfy iOS app v1.5.1
+Released April 27, 2026
+
+This release continues the iOS stability push from v1.4.1, with improved background polling reliability, better error
+handling and logging, and a few small UI fixes. The minimum supported iOS version is now iOS 15.
+
+**Features:**
+
+* Bump minimum iOS version to iOS 15 ([ntfy-ios#36](https://github.com/binwiederhier/ntfy-ios/pull/36), thanks to [@am7590](https://github.com/am7590) for the contribution)
+
+**Bug fixes + maintenance:**
+
+* Improve background poll reliability by waiting for polls to finish before calling the fetch completion handler, and saving notifications on the Core Data context queue ([ntfy-ios#34](https://github.com/binwiederhier/ntfy-ios/pull/34), thanks to [@am7590](https://github.com/am7590) for the contribution)
+* Make `poll_request` parsing more tolerant and surface concrete poll errors instead of failing silently ([ntfy-ios#34](https://github.com/binwiederhier/ntfy-ios/pull/34), thanks to [@am7590](https://github.com/am7590) for the contribution)
+* Poll subscriptions when the subscribed topics list appears, for more reactive updates ([ntfy-ios#34](https://github.com/binwiederhier/ntfy-ios/pull/34), thanks to [@am7590](https://github.com/am7590) for the contribution)
+* Fix bug where tapping "Add user" a second time would briefly open and then dismiss the add user view ([ntfy-ios#35](https://github.com/binwiederhier/ntfy-ios/pull/35), thanks to [@am7590](https://github.com/am7590) for the contribution)
+* Split `SettingsView` into separate files to improve readability ([ntfy-ios#35](https://github.com/binwiederhier/ntfy-ios/pull/35), thanks to [@am7590](https://github.com/am7590) for the contribution)
+* Add Firebase subscribe/unsubscribe logging to aid debugging ([ntfy-ios#34](https://github.com/binwiederhier/ntfy-ios/pull/34), thanks to [@am7590](https://github.com/am7590) for the contribution)
+
+## ntfy server v2.22.0
+Released April 21, 2026
+
+**Bug fixes + maintenance:**
+
+* Tighten web push endpoint allow-list regex to prevent SSRF via unanchored pattern matching ([GHSA-w9hq-5jg7-q4j7](https://github.com/binwiederhier/ntfy/security/advisories/GHSA-w9hq-5jg7-q4j7), thanks to [@MightyNawaf](https://github.com/MightyNawaf) for reporting)
+* Fix web app not allowing access tokens to be changed to never expire ([#1693](https://github.com/binwiederhier/ntfy/issues/1693)/[#1694](https://github.com/binwiederhier/ntfy/pull/1694), thanks to [@lastsamurai26](https://github.com/lastsamurai26) for reporting and to [@ShipItAndPray](https://github.com/ShipItAndPray) for fixing)
+* Fix web app crashing on account page for tokens without a last access time ([#1651](https://github.com/binwiederhier/ntfy/issues/1651), [#1684](https://github.com/binwiederhier/ntfy/issues/1684), thanks to [@Pulsar7](https://github.com/Pulsar7) and [@rzhli](https://github.com/rzhli) for reporting)
+
+## ntfy iOS app v1.4.1
+Released April 14, 2026
+
+This is the first iOS release in 3 years, focusing on stability fixes as per the [iOS improvement plan](https://github.com/binwiederhier/ntfy/issues/1680).
+
+**Bug fixes + maintenance:**
+
+* Fix crash when deleting notifications ([ntfy-ios#33](https://github.com/binwiederhier/ntfy-ios/pull/33), [#1642](https://github.com/binwiederhier/ntfy/issues/1642), [#377](https://github.com/binwiederhier/ntfy/issues/377), thanks to [@am7590](https://github.com/am7590) for the contribution)
+* Fix topic normalization for base URLs and refresh list after sending test notification ([ntfy-ios#32](https://github.com/binwiederhier/ntfy-ios/pull/32), [#337](https://github.com/binwiederhier/ntfy/issues/337), thanks to [@am7590](https://github.com/am7590) for the contribution)
+
+## ntfy server v2.21.0
+Released March 30, 2026
+
+This release adds the ability to verify email addresses using the `smtp-sender-verify` flag. This is a change that is
+required because ntfy.sh was used to send unsolicited emails and the AWS SES account was suspended. Going forward,
+ntfy.sh won't be able to send emails unless the email address was verified ahead of time.
+
+**Features:**
+
+* Add verified email recipients feature with `smtp-sender-verify` config flag, allowing server admins to require email
+  address verification before sending email notifications ([#1681](https://github.com/binwiederhier/ntfy/pull/1681))
+
+## ntfy server v2.20.1
+Released March 27, 2026
+
+This is a small bugfix release that only affects high volume S3 backends that struggle with HTTP/2.
+
+**Bug fixes + maintenance:**
+
+* [Attachments](config.md#attachments): Add `disable_http2=true` S3 URL option to work around HTTP/2 stream errors with DigitalOcean Spaces and other S3-compatible providers ([#1678](https://github.com/binwiederhier/ntfy/issues/1678)/[#1679](https://github.com/binwiederhier/ntfy/pull/1679))
+
+## ntfy server v2.20.0
+Released March 26, 2026
+
+This release is another step towards making it possible to help scale ntfy up and out 🔥! With this release, you can store
+attachments in an S3-compatible object store as an alterative to the directory. See [attachment store](config.md#attachments)
+for details.
+
+!!! warning
+    With this release, ntfy will take full control over the attachment directory or S3 bucket. Files/objects in the configured `attachment-cache-dir`
+    that match the message ID format (12 chars, matching `^[A-Za-z0-9]{12}$`), and have no entries in the message database will be deleted.
+    **Do not use a directory or S3 bucket as `attachment-cache-dir` that is also used for something else.**
+
+    This is a small behavioral change that was necessary because the old logic often left attachments behind and would not clean them
+    up. Unless you have re-used the attachment directory for anything else (which is hopefully never done), this should not affect
+    you at all.
+
+**Features:**
+
+* Add S3-compatible object storage as an alternative [attachment store](config.md#attachments) via `attachment-cache-dir` config option ([#1656](https://github.com/binwiederhier/ntfy/pull/1656)/[#1672](https://github.com/binwiederhier/ntfy/pull/1672))
+
+**Bug fixes + maintenance:**
+
+* Reject invalid e-mail addresses (e.g. multiple comma-separated recipients) with HTTP 400
+* Add OpenRC init service file ([#1650](https://github.com/binwiederhier/ntfy/pull/1650), thanks to [@ageru](https://github.com/ageru) for the contribution)
+
+## ntfy server v2.19.2
+Released March 16, 2026
+
+This is another small bugfix release for PostgreSQL, avoiding races between primary and read replica, as well as to
+further reduce primary load.
+
+**Bug fixes + maintenance:**
+
+* Fix race condition in web push subscription causing FK constraint violation when concurrent requests hit the same endpoint
+* Route authorization query to read-only database replica to reduce primary database load
+
+## ntfy server v2.19.1
+Released March 15, 2026
+
+This is a bugfix release to avoid PostgreSQL insert failures due to invalid UTF-8 messages. It also fixes `database-url`
+validation incorrectly rejecting `postgresql://` connection strings.
+
+**Bug fixes + maintenance:**
+
+* Fix invalid UTF-8 in HTTP headers (e.g. Latin-1 encoded text) causing PostgreSQL insert failures and dropping entire message batches
+* Fix `database-url` validation rejecting `postgresql://` connection strings ([#1657](https://github.com/binwiederhier/ntfy/issues/1657)/[#1658](https://github.com/binwiederhier/ntfy/pull/1658))
+
+## ntfy server v2.19.0
+Released March 15, 2026
+
+This is a fast-follow release that enables Postgres read replica support.
+
+To offload read-heavy queries from the primary database, you can optionally configure one or more read replicas
+using the `database-replica-urls` option. When configured, non-critical read-only queries (e.g. fetching messages, 
+checking access permissions, etc) are distributed across the replicas using round-robin, while all writes and
+correctness-critical reads continue to go to the primary. If a replica becomes unhealthy, ntfy automatically falls back
+to the primary until the replica recovers.
+
+**Features:**
+
+* Support [PostgreSQL read replicas](config.md#postgresql-experimental) for offloading non-critical read queries via `database-replica-urls` config option ([#1648](https://github.com/binwiederhier/ntfy/pull/1648))
+* Add interactive [config generator](config.md#config-generator) to the documentation to help create server configuration files ([#1654](https://github.com/binwiederhier/ntfy/pull/1654))
+
+**Bug fixes + maintenance:**
+
+* Web: Throttle notification sound in web app to play at most once every 2 seconds (similar to [#1550](https://github.com/binwiederhier/ntfy/issues/1550), thanks to [@jlaffaye](https://github.com/jlaffaye) for reporting)
+* Web: Add hover tooltips to icon buttons in web app account and preferences pages ([#1565](https://github.com/binwiederhier/ntfy/issues/1565), thanks to [@jermanuts](https://github.com/jermanuts) for reporting)
+
+## ntfy server v2.18.0
+Released March 7, 2026
+
+This is the biggest release I've ever done on the server. It's 14,997 added lines of code, and 10,202 lines removed, all from
+one [pull request](https://github.com/binwiederhier/ntfy/pull/1619) that adds [PostgreSQL support](config.md#postgresql-experimental).
+
+The code was written by Cursor and Claude, but reviewed and heavily tested over 2-3 weeks by me. I created comparison documents,
+went through all queries multiple times and reviewed the logic over and over again. I also did load tests and manual regression tests,
+which took lots of evenings.
+
+I'll not instantly switch ntfy.sh over. Instead, I'm kindly asking the community to test the Postgres support and report back to me
+if things are working (or not working). There is a [one-off migration tool](https://github.com/binwiederhier/ntfy/tree/main/tools/pgimport) (entirely written by AI) that you can use to migrate.
+
+**Features:**
+
+* Add experimental [PostgreSQL support](config.md#postgresql-experimental) as an alternative database backend (message cache, user manager, web push subscriptions) via `database-url` config option ([#1114](https://github.com/binwiederhier/ntfy/issues/1114)/[#1619](https://github.com/binwiederhier/ntfy/pull/1619), thanks to [@brettinternet](https://github.com/brettinternet) for reporting)
+
+**Bug fixes + maintenance:**
+
+* Preserve `<br>` line breaks in HTML-only emails received via SMTP ([#690](https://github.com/binwiederhier/ntfy/issues/690), [#1620](https://github.com/binwiederhier/ntfy/pull/1620), thanks to [@uzkikh](https://github.com/uzkikh) for the fix and to [@teastrainer](https://github.com/teastrainer) for reporting)
+
+## ntfy Android v1.24.0
+Released March 5, 2026
+
+This is a tiny release that will revert the "reconnecting ..." behavior of the foreground notification. Lots of people
+have complained about it, so I'm replacing it with a notification that shows up when the server connection has failed
+for >15 minutes, hoping that people will be less annoyed by that.
+
+**Features:**
+
+* Show notification when connection to server has been lost for 15+ minutes, with dismiss, snooze and never-show-again actions
+
+**Bug fixes + maintenance:**
+
+* Fix crash in settings when fragment is detached during backup/restore or log operations
+
+## ntfy Android v1.23.0
+Released February 22, 2026
+
+This release adds support for search within a topic, and adds [copy action](publish.md#copy-to-clipboard) support
+to the Android app.
+
+**Features:**
+
+* Search within a topic ([#141](https://github.com/binwiederhier/ntfy/issues/141), [ntfy-android#153](https://github.com/binwiederhier/ntfy-android/pull/153), thanks to [@Copephobia](https://github.com/Copephobia) and [@StoyanYonkov](https://github.com/StoyanYonkov) for reporting and sponsoring)
+* Add "reconnecting to N topics ..." to foreground notification ([#1101](https://github.com/binwiederhier/ntfy/issues/1101), thanks to [@milosivanovic](https://github.com/milosivanovic) for reporting)
+* Improved default server dialog with full-screen UI and stricter URL validation ([#1582](https://github.com/binwiederhier/ntfy/issues/1582))
+* Show last notification time for UnifiedPush subscriptions ([#1230](https://github.com/binwiederhier/ntfy/issues/1230), [#1454](https://github.com/binwiederhier/ntfy/issues/1454), thanks to [@Tealk](https://github.com/Tealk) and [@user4andre](https://github.com/user4andre) for reporting)
+* Support "copy" action button to copy a value to the clipboard ([#1364](https://github.com/binwiederhier/ntfy/issues/1364), thanks to [@SudoWatson](https://github.com/SudoWatson) for reporting)
+
+**Bug fixes + maintenance:**
+
+* Fix `clear=true` on action buttons not marking notification as read ([#1029](https://github.com/binwiederhier/ntfy/issues/1029), thanks to [@ElFishi](https://github.com/ElFishi) for reporting)
+* Fix crash when default server URL is missing scheme by auto-prepending `https://` ([#1582](https://github.com/binwiederhier/ntfy/issues/1582), thanks to [@hard-zero1](https://github.com/hard-zero1))
+* Fix notification timestamp to use original send time instead of receive time ([#1112](https://github.com/binwiederhier/ntfy/issues/1112), thanks to [@voruti](https://github.com/voruti) for reporting)
+* Fix notifications being missed after service restart by using persisted lastNotificationId ([#1591](https://github.com/binwiederhier/ntfy/issues/1591), thanks to @Epifeny for reporting)
+
+## ntfy server v2.17.0
+Released February 8, 2026
+
+This release adds support for templating in the priority field, a new "copy" action button to copy values to the clipboard,
+a red notification dot on the favicon for unread messages, and an admin-only version endpoint. It also includes several
+crash fixes, web app improvements, and documentation updates.
+
+❤️ If you like ntfy, **please consider sponsoring me** via [GitHub Sponsors](https://github.com/sponsors/binwiederhier), [Liberapay](https://en.liberapay.com/ntfy/), Bitcoin (`1626wjrw3uWk9adyjCfYwafw4sQWujyjn8`), 
+or by buying a [paid plan via the web app](https://ntfy.sh/app). ntfy will always remain open source.
+
+**Features:**
+
+* Server: Support templating in the priority field ([#1426](https://github.com/binwiederhier/ntfy/issues/1426), thanks to [@seantomburke](https://github.com/seantomburke) for reporting)
+* Server: Add admin-only `GET /v1/version` endpoint returning server version, build commit, and date ([#1599](https://github.com/binwiederhier/ntfy/issues/1599), thanks to [@crivchri](https://github.com/crivchri) for reporting)
+* Server/Web: [Support "copy" action](publish.md#copy-to-clipboard) button to copy a value to the clipboard ([#1364](https://github.com/binwiederhier/ntfy/issues/1364), thanks to [@SudoWatson](https://github.com/SudoWatson) for reporting)
+* Web: Show red notification dot on favicon when there are unread messages ([#1017](https://github.com/binwiederhier/ntfy/issues/1017), thanks to [@ad-si](https://github.com/ad-si) for reporting)
+
+**Bug fixes + maintenance:**
+
+* Server: Fix crash when commit string is shorter than 7 characters in non-GitHub-Action builds ([#1493](https://github.com/binwiederhier/ntfy/issues/1493), thanks to [@cyrinux](https://github.com/cyrinux) for reporting)
+* Server: Fix server crash (nil pointer panic) when subscriber disconnects during publish ([#1598](https://github.com/binwiederhier/ntfy/pull/1598))
+* Server: Fix log spam from `http: response.WriteHeader on hijacked connection` for WebSocket errors ([#1362](https://github.com/binwiederhier/ntfy/issues/1362), thanks to [@bonfiresh](https://github.com/bonfiresh) for reporting)
+* Server: Use `slices.Contains` from stdlib to simplify code ([#1406](https://github.com/binwiederhier/ntfy/pull/1406), thanks to [@tanhuaan](https://github.com/tanhuaan))
+* Web: Fix `clear=true` on action buttons not clearing the notification ([#1029](https://github.com/binwiederhier/ntfy/issues/1029), thanks to [@ElFishi](https://github.com/ElFishi) for reporting)
+* Web: Fix Markdown message line height to match plain text (1.5 instead of 1.2) ([#1139](https://github.com/binwiederhier/ntfy/issues/1139), thanks to [@etfz](https://github.com/etfz) for reporting)
+* Web: Fix long lines (e.g. JSON) being truncated by adding horizontal scroll ([#1363](https://github.com/binwiederhier/ntfy/issues/1363), thanks to [@v3DJG6GL](https://github.com/v3DJG6GL) for reporting)
+* Web: Fix Windows notification icon being cut off ([#884](https://github.com/binwiederhier/ntfy/issues/884), thanks to [@ZhangTianrong](https://github.com/ZhangTianrong) for reporting)
+* Web: Use full URL in curl example on empty topic pages ([#1435](https://github.com/binwiederhier/ntfy/issues/1435), [#1535](https://github.com/binwiederhier/ntfy/pull/1535), thanks to [@elmatadoor](https://github.com/elmatadoor) for reporting and [@jjasghar](https://github.com/jjasghar) for the PR)
+* Web: Add validation feedback for service URL when adding user ([#1566](https://github.com/binwiederhier/ntfy/issues/1566), thanks to [@jermanuts](https://github.com/jermanuts))
+* Docs: Remove obsolete `version` field from docker-compose examples ([#1333](https://github.com/binwiederhier/ntfy/issues/1333), thanks to [@seals187](https://github.com/seals187) for reporting and [@cyb3rko](https://github.com/cyb3rko) for fixing)
+* Docs: Fix Kustomize config in installation docs ([#1367](https://github.com/binwiederhier/ntfy/issues/1367), thanks to [@toby-griffiths](https://github.com/toby-griffiths))
+* Docs: Use SVG F-Droid badge and add app store badges to README ([#1170](https://github.com/binwiederhier/ntfy/issues/1170), thanks to [@PanderMusubi](https://github.com/PanderMusubi) for reporting)
+
+## ntfy Android app v1.22.2
+Released January 20, 2026
+
+This release adds support for [updating and deleting notifications](publish.md#updating-deleting-notifications) (requires server v2.16.0),
+as well as [certificate management for self-signed certs and mTLS client certificates](subscribe/phone.md#manage-certificates),
+and a new connection error dialog to help [troubleshoot connection issues](subscribe/phone.md#troubleshooting).
+
+<div id="v1221-screenshots-1" class="screenshots">
+    <a href="../../static/img/android-screenshot-notification-update-1.png"><img src="../../static/img/android-screenshot-notification-update-1.png"/></a>
+    <a href="../../static/img/android-screenshot-notification-update-2.png"><img src="../../static/img/android-screenshot-notification-update-2.png"/></a>
+</div>
+
+<div id="v1221-screenshots-2" class="screenshots">
+    <a href="../../static/img/android-screenshot-certs-warning-dialog.jpg"><img src="../../static/img/android-screenshot-certs-warning-dialog.jpg"/></a>
+    <a href="../../static/img/android-screenshot-certs-manage.jpg"><img src="../../static/img/android-screenshot-certs-manage.jpg"/></a>
+    <a href="../../static/img/android-screenshot-connection-error-dialog.jpg"><img src="../../static/img/android-screenshot-connection-error-dialog.jpg"/></a>
+</div>
+
+**Features:**
+
+* Support for [updating and deleting notifications](publish.md#updating-deleting-notifications)
+  ([#303](https://github.com/binwiederhier/ntfy/issues/303), [#1536](https://github.com/binwiederhier/ntfy/pull/1536),
+  [ntfy-android#151](https://github.com/binwiederhier/ntfy-android/pull/151), thanks to [@wunter8](https://github.com/wunter8)
+  for the initial implementation)
+* Support for self-signed certs and client certs for mTLS ([#215](https://github.com/binwiederhier/ntfy/issues/215),
+  [#530](https://github.com/binwiederhier/ntfy/issues/530), [ntfy-android#149](https://github.com/binwiederhier/ntfy-android/pull/149),
+  thanks to [@cyb3rko](https://github.com/cyb3rko) for reviewing)
+* Connection error dialog to help diagnose connection issues
+
+**Bug fixes + maintenance:**
+
+* Use server-specific user for attachment downloads ([#1529](https://github.com/binwiederhier/ntfy/issues/1529),
+  thanks to [@ManInDark](https://github.com/ManInDark) for reporting and testing)
+* Fix crash in sharing dialog (thanks to [@rogeliodh](https://github.com/rogeliodh))
+* Fix crash when exiting multi-delete in detail view
+* Fix potential crashes with icon downloader and backuper
+
+## ntfy server v2.16.0
+Released January 19, 2026
+
+This release adds support for updating and deleting notifications, heartbeat-style / dead man's switch notifications,
+custom Twilio call formats, and makes `ntfy serve` work on Windows. It also adds a "New version available" banner to the web app.
+
+This one is very exciting, as it brings a lot of highly requested features to ntfy.
+
+**Features:**
+
+* Support for [updating and deleting notifications](publish.md#updating-deleting-notifications) ([#303](https://github.com/binwiederhier/ntfy/issues/303), [#1536](https://github.com/binwiederhier/ntfy/pull/1536),
+  [ntfy-android#151](https://github.com/binwiederhier/ntfy-android/pull/151), thanks to [@wunter8](https://github.com/wunter8) for the initial implementation)
+* Support for heartbeat-style / [dead man's switch](https://en.wikipedia.org/wiki/Dead_man%27s_switch) notifications aka
+  [updating and deleting scheduled notifications](publish.md#scheduled-delivery) ([#1556](https://github.com/binwiederhier/ntfy/pull/1556),
+  [#1142](https://github.com/binwiederhier/ntfy/pull/1142), [#954](https://github.com/binwiederhier/ntfy/issues/954),
+  thanks to [@GamerGirlandCo](https://github.com/GamerGirlandCo) for the initial implementation)
+* Configure [custom Twilio call format](config.md#phone-calls) for phone calls ([#1289](https://github.com/binwiederhier/ntfy/pull/1289), thanks to [@mmichaa](https://github.com/mmichaa) for the initial implementation)
+* `ntfy serve` now works on Windows, including support for running it as a Windows service ([#1104](https://github.com/binwiederhier/ntfy/issues/1104),
+  [#1552](https://github.com/binwiederhier/ntfy/pull/1552), originally [#1328](https://github.com/binwiederhier/ntfy/pull/1328),
+  thanks to [@wtf911](https://github.com/wtf911))
+* Web app: "New version available" banner ([#1554](https://github.com/binwiederhier/ntfy/pull/1554))
+
 ## ntfy Android app v1.21.1
 Released January 6, 2026
 
@@ -19,6 +396,13 @@ This is the first feature release in a long time. After all the SDK updates, fix
 and the framework updates, this release ships a lot of highly requested features: Sending messages through the app (WhatsApp-style),
 support for passing headers to your proxy, an in-app language switcher, and more.
 
+<div id="v1211-screenshots" class="screenshots">
+    <a href="../../static/img/android-screenshot-publish-message-bar.jpg"><img src="../../static/img/android-screenshot-publish-message-bar.jpg"/></a>
+    <a href="../../static/img/android-screenshot-publish-dialog.jpg"><img src="../../static/img/android-screenshot-publish-dialog.jpg"/></a>
+    <a href="../../static/img/android-screenshot-custom-headers.jpg"><img src="../../static/img/android-screenshot-custom-headers.jpg"/></a>
+    <a href="../../static/img/android-screenshot-language-selection.jpg"><img src="../../static/img/android-screenshot-language-selection.jpg"/></a>
+</div>
+
 If you are waiting for a feature, please 👍 the corresponding [GitHub issue](https://github.com/binwiederhier/ntfy/issues?q=is%3Aissue%20state%3Aopen%20sort%3Areactions-%2B1-desc).
 If you like ntfy, please consider purchasing [ntfy Pro](https://ntfy.sh/app) to support us.
 
@@ -1599,33 +1983,42 @@ and the [ntfy Android app](https://github.com/binwiederhier/ntfy-android/release
 
 ## Not released yet
 
-### ntfy server v2.16.x (UNRELEASED)
+### ntfy Android v1.25.x (UNRELEASED)
+
+This release makes the "connection lost" alert configurable and turns it off by default. Folks did not like it and many reached out
+or even gave ntfy bad reviews. I heard you! You can re-enable the alert in the advanced settings.
+
+The release also tries to be smarter about not retrying the connection at all if the app is in flight mode, or has no network. If there
+is no network, ntfy will now stop the foreground service entirely.
+
+Another change related to the networking is that we now force-reconnect when the connection is changed, e.g. during transitions
+from Wi-Fi to cellular network, or vice versa. That should allow for faster transitions during hand-overs.
+
+We also increase the client-side WebSocket ping interval from 1 minute to 3 minutes, which should slightly improve battery life,
+especially when paired with increaseing the server-side `keepalive-interval` in your self-hosted server. 
 
 **Features:**
 
-* Support for [updating and deleting notifications](publish.md#updating-deleting-notifications) ([#303](https://github.com/binwiederhier/ntfy/issues/303), [#1536](https://github.com/binwiederhier/ntfy/pull/1536),
-  [ntfy-android#151](https://github.com/binwiederhier/ntfy-android/pull/151), thanks to [@wunter8](https://github.com/wunter8) for the initial implementation)
-* Configure [custom Twilio call format](config.md#phone-calls) for phone calls ([#1289](https://github.com/binwiederhier/ntfy/pull/1289), thanks to [@mmichaa](https://github.com/mmichaa) for the initial implementation) 
-* `ntfy serve` now works on Windows, including support for running it as a Windows service ([#1552](https://github.com/binwiederhier/ntfy/pull/1552), originally [#1328](https://github.com/binwiederhier/ntfy/pull/1328), thanks to [@wtf911](https://github.com/wtf911))
-* Web app: "New version available" banner ([#1554](https://github.com/binwiederhier/ntfy/pull/1554))
-
-### ntfy Android app v1.22.x (UNRELEASED)
-
-**Features:**
-
-* Support for [updating and deleting notifications](publish.md#updating-deleting-notifications)
-  ([#303](https://github.com/binwiederhier/ntfy/issues/303), [#1536](https://github.com/binwiederhier/ntfy/pull/1536),
-  [ntfy-android#151](https://github.com/binwiederhier/ntfy-android/pull/151), thanks to [@wunter8](https://github.com/wunter8)
-  for the initial implementation)
-* Support for self-signed certs and client certs for mTLS ([#215](https://github.com/binwiederhier/ntfy/issues/215),
-  [#530](https://github.com/binwiederhier/ntfy/issues/530), [ntfy-android#149](https://github.com/binwiederhier/ntfy-android/pull/149),
-  thanks to [@cyb3rko](https://github.com/cyb3rko) for reviewing)
-* Connection error dialog to help diagnose connection issues
+* Add configurable "Alert when connection is lost" setting ([#1665](https://github.com/binwiederhier/ntfy/issues/1665), [#1662](https://github.com/binwiederhier/ntfy/issues/1662), [#1652](https://github.com/binwiederhier/ntfy/issues/1652), [#1655](https://github.com/binwiederhier/ntfy/issues/1655), thanks to [@tintamarre](https://github.com/tintamarre), [@sjozs](https://github.com/sjozs), [@TheRealOne78](https://github.com/TheRealOne78), and [@DAE51D](https://github.com/DAE51D) for reporting)
+* Suppress connection alerts and stop foreground service when there is no network ([ntfy-android#165](https://github.com/binwiederhier/ntfy-android/pull/165), thanks to [@tintamarre](https://github.com/tintamarre) for the contribution)
+* Restart the foreground service immediately when network returns, even if the app process was killed while offline
+* Improve battery life by increasing WebSocket client ping interval from 1 min to 3 min, and reconnect instantly on Wi-Fi/cellular/VPN transitions ([ntfy-android#113](https://github.com/binwiederhier/ntfy-android/pull/113), thanks to [@ftilde](https://github.com/ftilde) for the investigation)
+* Disable UnifiedPush components when UnifiedPush is disabled in settings ([ntfy-android#168](https://github.com/binwiederhier/ntfy-android/pull/168), thanks to [@p1gp1g](https://github.com/p1gp1g) for the contribution)
 
 **Bug fixes + maintenance:**
 
-* Use server-specific user for attachment downloads ([#1529](https://github.com/binwiederhier/ntfy/issues/1529),
-  thanks to [@ManInDark](https://github.com/ManInDark) for reporting and testing)
-* Fix crash in sharing dialog (thanks to [@rogeliodh](https://github.com/rogeliodh))
-* Fix crash when exiting multi-delete in detail view
-* Fix potential crashes with icon downloader and backuper
+* Undo automatic phone number linking for numbers in message body ([ntfy-android#170](https://github.com/binwiederhier/ntfy-android/pull/170), thanks to [@acortelyou](https://github.com/acortelyou) for the contribution)
+* Fix subscription icons disappearing after a few days due to Android clearing cache ([#1322](https://github.com/binwiederhier/ntfy/issues/1322), thanks to [@mcanning](https://github.com/mcanning) for reporting)
+
+### ntfy iOS app v1.8.0 (UNRELEASED)
+
+**Features:**
+
+* Deliver priority 5 (max/urgent) notifications as critical alerts that bypass silent mode and Do Not Disturb ([ntfy-ios#44](https://github.com/binwiederhier/ntfy-ios/pull/44), thanks to [@am7590](https://github.com/am7590) for the contribution)
+* Apply the attachment auto-download size setting to all attachment types, not just images ([ntfy-ios#43](https://github.com/binwiederhier/ntfy-ios/pull/43), thanks to [@am7590](https://github.com/am7590) for the contribution)
+
+**Bug fixes + maintenance:**
+
+* Restore the native swipe-to-go-back gesture in the topic detail view ([ntfy-ios#45](https://github.com/binwiederhier/ntfy-ios/pull/45), thanks to [@am7590](https://github.com/am7590) for the contribution)
+* Fix saved attachments being left "in use" so they couldn't be deleted in the Files app ([ntfy-ios#43](https://github.com/binwiederhier/ntfy-ios/pull/43), thanks to [@am7590](https://github.com/am7590) for the contribution)
+* Improve poll request subscription matching for protected topics so notifications resolve to the real message content, with better logging ([ntfy-ios#43](https://github.com/binwiederhier/ntfy-ios/pull/43), thanks to [@am7590](https://github.com/am7590) for the contribution)

docs/static/css/config-generator.css

@@ -0,0 +1,853 @@
+/* Config Generator */
+
+/* Hidden utility */
+.cg-hidden {
+    display: none !important;
+}
+
+/* Open button */
+.cg-open-btn {
+    display: inline-block;
+    padding: 8px 20px;
+    background: var(--md-primary-fg-color);
+    color: #fff;
+    border: none;
+    border-radius: 4px;
+    font-size: 0.85rem;
+    font-weight: 500;
+    cursor: pointer;
+    font-family: inherit;
+    transition: opacity 0.15s;
+}
+
+.cg-open-btn:hover {
+    opacity: 0.85;
+}
+
+/* Modal overlay */
+.cg-modal {
+    position: fixed;
+    inset: 0;
+    z-index: 1000;
+}
+
+.cg-modal-backdrop {
+    position: absolute;
+    inset: 0;
+    background: rgba(0, 0, 0, 0.5);
+}
+
+.cg-modal-dialog {
+    position: absolute;
+    inset: 24px;
+    display: flex;
+    flex-direction: column;
+    background: #fff;
+    border-radius: 10px;
+    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.25);
+    overflow: hidden;
+    font-size: 0.78rem;
+}
+
+.cg-modal-header {
+    display: flex;
+    align-items: center;
+    justify-content: space-between;
+    padding: 12px 20px;
+    border-bottom: 1px solid #ddd;
+    flex-shrink: 0;
+}
+
+.cg-modal-header-left {
+    display: flex;
+    align-items: baseline;
+    gap: 12px;
+    min-width: 0;
+}
+
+.cg-modal-title {
+    font-weight: 600;
+    font-size: 0.95rem;
+    white-space: nowrap;
+}
+
+.cg-badge-beta {
+    display: inline-block;
+    padding: 1px 8px;
+    margin-left: 8px;
+    background: var(--md-primary-fg-color);
+    color: #fff;
+    font-size: 0.6rem;
+    font-weight: 600;
+    border-radius: 10px;
+    letter-spacing: 0.5px;
+    vertical-align: middle;
+}
+
+.cg-modal-desc {
+    font-size: 0.75rem;
+    color: #888;
+}
+
+.cg-modal-header-actions {
+    display: flex;
+    align-items: center;
+    gap: 8px;
+}
+
+.cg-modal-reset {
+    background: none;
+    border: 1px solid #ccc;
+    border-radius: 4px;
+    font-size: 0.75rem;
+    color: #777;
+    cursor: pointer;
+    padding: 4px 12px;
+    font-family: inherit;
+    transition: color 0.15s, border-color 0.15s;
+}
+
+.cg-modal-reset:hover {
+    color: #333;
+    border-color: #999;
+}
+
+.cg-modal-close {
+    background: none;
+    border: none;
+    font-size: 1.4rem;
+    color: #999;
+    cursor: pointer;
+    padding: 0 4px;
+    line-height: 1;
+}
+
+.cg-modal-close:hover {
+    color: #333;
+}
+
+/* Modal body: left + right */
+.cg-modal-body {
+    display: flex;
+    flex: 1;
+    min-height: 0;
+    overflow: hidden;
+}
+
+/* Left panel */
+#cg-left {
+    flex: 1;
+    display: flex;
+    flex-direction: column;
+    border-right: 1px solid #ddd;
+    min-width: 0;
+}
+
+.cg-nav {
+    display: flex;
+    flex-wrap: wrap;
+    gap: 0;
+    border-bottom: 1px solid #ddd;
+    flex-shrink: 0;
+    padding: 0 16px;
+}
+
+.cg-nav-tab {
+    padding: 9px 14px;
+    cursor: pointer;
+    font-size: 0.78rem;
+    font-weight: 500;
+    color: #777;
+    border-bottom: 2px solid transparent;
+    margin-bottom: -1px;
+    user-select: none;
+    transition: color 0.15s, border-color 0.15s;
+    white-space: nowrap;
+}
+
+.cg-nav-tab:hover {
+    color: #444;
+}
+
+.cg-nav-tab.active {
+    color: var(--md-primary-fg-color);
+    border-bottom-color: var(--md-primary-fg-color);
+}
+
+.cg-panels {
+    flex: 1;
+    overflow-y: auto;
+    padding: 16px 20px;
+}
+
+.cg-panel {
+    display: none;
+}
+
+.cg-panel.active {
+    display: block;
+}
+
+.cg-panel-desc {
+    font-size: 0.75rem;
+    color: #888;
+    margin-bottom: 12px;
+    line-height: 1.5;
+}
+
+.cg-panel-desc a {
+    color: var(--md-primary-fg-color);
+}
+
+.cg-help {
+    color: var(--md-primary-fg-color);
+    text-decoration: none;
+    margin-left: 4px;
+    vertical-align: middle;
+    flex-shrink: 0;
+    transition: color 0.15s;
+}
+
+.cg-help:hover {
+    color: var(--md-primary-fg-color--dark, #2a6e5f);
+}
+
+/* Right panel */
+#cg-right {
+    flex: 1;
+    display: flex;
+    flex-direction: column;
+    min-width: 0;
+}
+
+.cg-output-tabs {
+    display: flex;
+    border-bottom: 1px solid #ddd;
+    flex-shrink: 0;
+    padding: 0 16px;
+}
+
+.cg-output-tab {
+    padding: 9px 14px;
+    cursor: pointer;
+    font-size: 0.78rem;
+    font-weight: 500;
+    border-bottom: 2px solid transparent;
+    margin-bottom: -1px;
+    color: #777;
+    transition: color 0.15s, border-color 0.15s;
+    user-select: none;
+    white-space: nowrap;
+}
+
+.cg-output-tab:hover {
+    color: #444;
+}
+
+.cg-output-tab.active {
+    color: var(--md-primary-fg-color);
+    border-bottom-color: var(--md-primary-fg-color);
+}
+
+.cg-btn-copy {
+    margin-left: auto;
+    background: none;
+    color: #777;
+    border: none;
+    border-bottom: 2px solid transparent;
+    margin-bottom: -1px;
+    padding: 9px 10px;
+    cursor: pointer;
+    line-height: 1;
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    transition: color 0.15s;
+}
+
+.cg-btn-copy:hover {
+    color: #333;
+}
+
+.cg-output-wrap {
+    flex: 1;
+    overflow: auto;
+    padding: 16px 20px;
+    display: flex;
+    flex-direction: column;
+}
+
+.cg-output-wrap pre {
+    margin: 0;
+    padding: 8px 10px;
+    background: #f5f5f5;
+    color: #333;
+    border: 1px solid #ddd;
+    border-radius: 6px;
+    overflow-x: auto;
+    font-size: 0.76rem;
+    line-height: 1.5;
+    flex: 1;
+    white-space: pre;
+}
+
+.cg-empty-msg {
+    color: #888;
+    font-style: italic;
+}
+
+.cg-warning {
+    padding: 6px 10px;
+    margin-top: 8px;
+    background: #fff3cd;
+    color: #856404;
+    border: 1px solid #ffc107;
+    border-radius: 4px;
+    font-size: 0.76rem;
+}
+
+/* Form fields */
+.cg-field {
+    margin-bottom: 0;
+    padding: 8px 12px;
+}
+
+.cg-field:nth-child(odd) {
+    background: #f8f8f8;
+}
+
+.cg-field:nth-child(even) {
+    background: #fff;
+}
+
+.cg-field > label {
+    display: block;
+    font-weight: 500;
+    margin-bottom: 4px;
+    font-size: 0.78rem;
+    color: #555;
+}
+
+.cg-field input[type="text"],
+.cg-field input[type="password"],
+.cg-field select {
+    width: 100%;
+    padding: 6px 8px;
+    border: 1px solid #ccc;
+    border-radius: 4px;
+    font-size: 0.78rem;
+    font-family: inherit;
+    box-sizing: border-box;
+    background: #fff;
+}
+
+.cg-field input[type="text"]:focus,
+.cg-field input[type="password"]:focus,
+.cg-field select:focus {
+    border-color: var(--md-primary-fg-color);
+    outline: none;
+    box-shadow: 0 0 0 2px rgba(51, 133, 116, 0.15);
+}
+
+.cg-checkbox {
+    display: flex;
+    align-items: center;
+    gap: 6px;
+    margin-bottom: 10px;
+}
+
+.cg-checkbox input[type="checkbox"] {
+    accent-color: var(--md-primary-fg-color);
+}
+
+.cg-checkbox label {
+    font-weight: 500;
+    font-size: 0.78rem;
+    margin: 0;
+    cursor: pointer;
+}
+
+.cg-radio-group {
+    display: flex;
+    flex-direction: column;
+    gap: 4px;
+}
+
+.cg-radio-group label {
+    display: flex;
+    align-items: center;
+    gap: 4px;
+    font-weight: 400;
+    font-size: 0.78rem;
+    cursor: pointer;
+}
+
+.cg-radio-group input[type="radio"] {
+    accent-color: var(--md-primary-fg-color);
+}
+
+/* Inline field: label + control side by side */
+.cg-inline-field {
+    display: flex;
+    align-items: center;
+    gap: 12px;
+}
+
+.cg-inline-field > label {
+    margin-bottom: 0;
+    width: 60%;
+    flex-shrink: 0;
+}
+
+.cg-panel:not(#cg-panel-general) .cg-inline-field > label {
+    width: 50%;
+}
+
+.cg-inline-field > input[type="text"],
+.cg-inline-field > select {
+    padding: 4px 10px;
+    border: 1px solid #ccc;
+    border-radius: 4px;
+    font-size: 0.75rem;
+    font-family: inherit;
+    box-sizing: border-box;
+    line-height: 1.4;
+    background: #fff;
+}
+
+.cg-inline-field > input[type="text"]:focus,
+.cg-inline-field > select:focus {
+    border-color: var(--md-primary-fg-color);
+    outline: none;
+    box-shadow: 0 0 0 2px rgba(51, 133, 116, 0.15);
+}
+
+#cg-email-in-section {
+    margin-top: 20px;
+}
+
+.cg-pg-label {
+    font-size: 0.75rem;
+    color: #888;
+    font-style: italic;
+}
+
+/* Button group toggle */
+.cg-btn-group {
+    display: flex;
+    flex-shrink: 0;
+}
+
+.cg-btn-group label {
+    cursor: pointer;
+    margin: 0;
+}
+
+.cg-btn-group input[type="radio"] {
+    display: none;
+}
+
+.cg-btn-group span {
+    display: block;
+    padding: 4px 14px;
+    font-size: 0.75rem;
+    font-weight: 500;
+    line-height: 1.4;
+    border: 1px solid #ccc;
+    color: #555;
+    background: #fff;
+    transition: background 0.15s, color 0.15s, border-color 0.15s;
+    user-select: none;
+}
+
+.cg-btn-group label:first-child span {
+    border-radius: 4px 0 0 4px;
+}
+
+.cg-btn-group label:last-child span {
+    border-radius: 0 4px 4px 0;
+}
+
+.cg-btn-group label + label span {
+    margin-left: -1px;
+}
+
+.cg-btn-group input[type="radio"]:checked + span {
+    background: var(--md-primary-fg-color);
+    color: #fff;
+    border-color: var(--md-primary-fg-color);
+    position: relative;
+    z-index: 1;
+}
+
+.cg-feature-grid {
+    display: flex;
+    flex-direction: column;
+    gap: 5px;
+}
+
+.cg-feature-row {
+    display: flex;
+    align-items: center;
+    gap: 8px;
+}
+
+.cg-feature-grid label {
+    display: flex;
+    align-items: center;
+    gap: 6px;
+    font-size: 0.78rem;
+    cursor: pointer;
+}
+
+.cg-feature-grid input[type="checkbox"] {
+    accent-color: var(--md-primary-fg-color);
+}
+
+.cg-btn-configure {
+    background: none;
+    border: 1px solid var(--md-primary-fg-color);
+    border-radius: 10px;
+    color: var(--md-primary-fg-color);
+    font-size: 0.68rem;
+    font-family: inherit;
+    padding: 1px 10px;
+    cursor: pointer;
+    white-space: nowrap;
+    transition: background 0.15s, color 0.15s;
+}
+
+.cg-btn-configure:hover {
+    background: var(--md-primary-fg-color);
+    color: #fff;
+}
+
+/* Repeatable rows */
+.cg-repeatable-row {
+    display: flex;
+    gap: 6px;
+    align-items: center;
+    margin-bottom: 6px;
+    flex-wrap: wrap;
+}
+
+.cg-repeatable-row input,
+.cg-repeatable-row select {
+    flex: 1;
+    min-width: 80px;
+    padding: 5px 6px;
+    border: 1px solid #ccc;
+    border-radius: 4px;
+    font-size: 0.75rem;
+    font-family: inherit;
+    box-sizing: border-box;
+}
+
+.cg-repeatable-row input:focus,
+.cg-repeatable-row select:focus {
+    border-color: var(--md-primary-fg-color);
+    outline: none;
+}
+
+.cg-repeatable-row input:disabled,
+.cg-repeatable-row select:disabled {
+    background: #eee;
+    color: #999;
+    cursor: not-allowed;
+}
+
+.cg-btn-remove {
+    background: none;
+    border: 1px solid #ccc;
+    border-radius: 4px;
+    cursor: pointer;
+    font-size: 0.9rem;
+    padding: 5px 8px;
+    color: #999;
+    line-height: 1;
+}
+
+.cg-btn-remove:hover {
+    background: #fee;
+    border-color: #c66;
+    color: #c33;
+}
+
+.cg-btn-add {
+    background: none;
+    border: 1px dashed #bbb;
+    border-radius: 4px;
+    cursor: pointer;
+    padding: 5px 10px;
+    font-size: 0.75rem;
+    color: #777;
+    margin-top: 2px;
+}
+
+.cg-btn-add:hover {
+    border-color: var(--md-primary-fg-color);
+    color: var(--md-primary-fg-color);
+}
+
+/* Dark mode */
+body[data-md-color-scheme="slate"] .cg-modal-dialog {
+    background: #1e1e2e;
+}
+
+body[data-md-color-scheme="slate"] .cg-modal-header {
+    border-bottom-color: #444;
+}
+
+body[data-md-color-scheme="slate"] .cg-modal-title {
+    color: #ddd;
+}
+
+body[data-md-color-scheme="slate"] .cg-modal-desc {
+    color: #777;
+}
+
+body[data-md-color-scheme="slate"] .cg-modal-reset {
+    border-color: #555;
+    color: #888;
+}
+
+body[data-md-color-scheme="slate"] .cg-modal-reset:hover {
+    border-color: #888;
+    color: #ddd;
+}
+
+body[data-md-color-scheme="slate"] .cg-modal-close {
+    color: #777;
+}
+
+body[data-md-color-scheme="slate"] .cg-modal-close:hover {
+    color: #ddd;
+}
+
+body[data-md-color-scheme="slate"] #cg-left {
+    border-right-color: #444;
+}
+
+body[data-md-color-scheme="slate"] .cg-nav {
+    border-bottom-color: #444;
+}
+
+body[data-md-color-scheme="slate"] .cg-nav-tab {
+    color: #888;
+}
+
+body[data-md-color-scheme="slate"] .cg-nav-tab:hover {
+    color: #bbb;
+}
+
+body[data-md-color-scheme="slate"] .cg-output-tabs {
+    border-bottom-color: #444;
+}
+
+body[data-md-color-scheme="slate"] .cg-output-tab {
+    color: #888;
+}
+
+body[data-md-color-scheme="slate"] .cg-output-tab:hover {
+    color: #bbb;
+}
+
+body[data-md-color-scheme="slate"] .cg-btn-copy {
+    color: #777;
+}
+
+body[data-md-color-scheme="slate"] .cg-btn-copy:hover {
+    color: #bbb;
+}
+
+body[data-md-color-scheme="slate"] .cg-output-wrap pre {
+    background: #161620;
+    color: #ddd;
+    border-color: #444;
+}
+
+body[data-md-color-scheme="slate"] .cg-field:nth-child(odd) {
+    background: #232334;
+}
+
+body[data-md-color-scheme="slate"] .cg-field:nth-child(even) {
+    background: #1e1e2e;
+}
+
+body[data-md-color-scheme="slate"] .cg-panel-desc {
+    color: #777;
+}
+
+body[data-md-color-scheme="slate"] .cg-field > label {
+    color: #aaa;
+}
+
+body[data-md-color-scheme="slate"] .cg-field input[type="text"],
+body[data-md-color-scheme="slate"] .cg-field input[type="password"],
+body[data-md-color-scheme="slate"] .cg-field select {
+    background: #2a2a3a;
+    border-color: #555;
+    color: #ddd;
+}
+
+body[data-md-color-scheme="slate"] .cg-btn-group span {
+    background: #2a2a3a;
+    border-color: #555;
+    color: #aaa;
+}
+
+body[data-md-color-scheme="slate"] .cg-btn-group input[type="radio"]:checked + span {
+    background: var(--md-primary-fg-color);
+    color: #fff;
+    border-color: var(--md-primary-fg-color);
+}
+
+body[data-md-color-scheme="slate"] .cg-checkbox label {
+    color: #ccc;
+}
+
+body[data-md-color-scheme="slate"] .cg-radio-group label {
+    color: #ccc;
+}
+
+body[data-md-color-scheme="slate"] .cg-feature-grid label {
+    color: #ccc;
+}
+
+body[data-md-color-scheme="slate"] .cg-repeatable-row input,
+body[data-md-color-scheme="slate"] .cg-repeatable-row select {
+    background: #2a2a3a;
+    border-color: #555;
+    color: #ddd;
+}
+
+body[data-md-color-scheme="slate"] .cg-repeatable-row input:disabled,
+body[data-md-color-scheme="slate"] .cg-repeatable-row select:disabled {
+    background: #1a1a28;
+    color: #666;
+}
+
+body[data-md-color-scheme="slate"] .cg-btn-remove {
+    border-color: #555;
+    color: #888;
+}
+
+body[data-md-color-scheme="slate"] .cg-btn-add {
+    border-color: #555;
+    color: #888;
+}
+
+body[data-md-color-scheme="slate"] .cg-warning {
+    background: #3a2e00;
+    color: #ffc107;
+    border-color: #665200;
+}
+
+/* Mobile toggle bar (hidden on desktop) */
+.cg-mobile-toggle {
+    display: none;
+}
+
+/* Responsive */
+@media (max-width: 900px) {
+    .cg-modal-dialog {
+        inset: 0;
+        border-radius: 0;
+    }
+
+    .cg-modal-header {
+        padding: 8px 16px;
+    }
+
+    .cg-modal-title {
+        font-size: 0.85rem;
+    }
+
+    .cg-modal-desc {
+        display: none;
+    }
+
+    .cg-modal-body {
+        flex-direction: column;
+    }
+
+    .cg-mobile-toggle {
+        display: flex;
+        flex-shrink: 0;
+        border-bottom: 1px solid #ddd;
+    }
+
+    .cg-mobile-toggle-btn {
+        flex: 1;
+        padding: 8px 0;
+        border: none;
+        background: #f5f5f5;
+        font-size: 0.78rem;
+        font-weight: 500;
+        font-family: inherit;
+        color: #777;
+        cursor: pointer;
+        transition: background 0.15s, color 0.15s;
+    }
+
+    .cg-mobile-toggle-btn.active {
+        background: #fff;
+        color: var(--md-primary-fg-color);
+        box-shadow: inset 0 -2px 0 var(--md-primary-fg-color);
+    }
+
+    #cg-left {
+        border-right: none;
+        flex: 1;
+        min-height: 0;
+    }
+
+    #cg-right {
+        flex: 1;
+        display: none;
+        min-height: 0;
+    }
+
+    #cg-right.cg-mobile-active {
+        display: flex;
+    }
+
+    #cg-left.cg-mobile-hidden {
+        display: none;
+    }
+
+    .cg-nav {
+        overflow-x: auto;
+        flex-wrap: nowrap;
+        -webkit-overflow-scrolling: touch;
+    }
+
+    .cg-inline-field {
+        flex-direction: column;
+        align-items: stretch;
+        gap: 4px;
+    }
+
+    .cg-inline-field > label {
+        width: 100%;
+    }
+
+    .cg-panel:not(#cg-panel-general) .cg-inline-field > label {
+        width: 100%;
+    }
+}
+
+/* Dark mode mobile toggle */
+body[data-md-color-scheme="slate"] .cg-mobile-toggle {
+    border-bottom-color: #444;
+}
+
+body[data-md-color-scheme="slate"] .cg-mobile-toggle-btn {
+    background: #2a2a3a;
+    color: #888;
+}
+
+body[data-md-color-scheme="slate"] .cg-mobile-toggle-btn.active {
+    background: #1e1e2e;
+    color: var(--md-primary-fg-color);
+}

docs/static/css/extra.css

@@ -92,7 +92,7 @@ figure video {
 }
 
 .screenshots img {
-    max-height: 230px;
+    max-height: 350px;
     max-width: 350px;
     margin: 3px;
     border-radius: 5px;
@@ -214,3 +214,30 @@ figure video {
     font-weight: 400;
     src: url('../fonts/roboto-mono-v22-latin-regular.woff2') format('woff2');
 }
+
+/* Community maintained badge */
+.community-badge {
+    display: inline-flex;
+    align-items: center;
+    gap: 0.35em;
+    background-color: rgba(51, 133, 116, 0.1);
+    border: 1px solid rgba(51, 133, 116, 0.3);
+    border-radius: 0.7em;
+    padding: 0.1em 0.7em;
+    font-size: 0.75rem;
+    color: #338574;
+    margin-top: 0;
+    margin-bottom: 0.5em;
+}
+
+.community-badge svg {
+    width: 1em;
+    height: 1em;
+    fill: currentColor;
+}
+
+body[data-md-color-scheme="slate"] .community-badge {
+    background-color: rgba(86, 189, 168, 0.15);
+    border-color: rgba(86, 189, 168, 0.4);
+    color: #56bda8;
+}

docs/static/css/topic-generator.css

@@ -0,0 +1,235 @@
+/* Topic name generator (Publishing page) */
+/* Styled to mirror the config generator (header + left form / right output panels). */
+
+.tg-generator {
+    margin: 16px 0 24px;
+    border: 1px solid #ddd;
+    border-radius: 10px;
+    background: #fff;
+    overflow: hidden;
+    font-size: 0.78rem;
+    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.06);
+}
+
+/* Header (matches .cg-modal-header) */
+.tg-header {
+    display: flex;
+    align-items: center;
+    justify-content: space-between;
+    padding: 10px 16px;
+    border-bottom: 1px solid #ddd;
+}
+
+.tg-title {
+    font-weight: 600;
+    font-size: 0.9rem;
+}
+
+.tg-reset {
+    background: none;
+    border: 1px solid #ccc;
+    border-radius: 4px;
+    font-size: 0.72rem;
+    color: #777;
+    cursor: pointer;
+    padding: 4px 12px;
+    font-family: inherit;
+    transition: color 0.15s, border-color 0.15s;
+}
+
+.tg-reset:hover {
+    color: #333;
+    border-color: #999;
+}
+
+/* Body: left (form) + right (output), matches .cg-modal-body */
+.tg-body {
+    display: flex;
+    min-height: 0;
+}
+
+.tg-left {
+    flex: 1;
+    border-right: 1px solid #ddd;
+    padding: 16px 18px;
+    min-width: 0;
+}
+
+.tg-right {
+    flex: 1;
+    padding: 16px 18px;
+    display: flex;
+    flex-direction: column;
+    gap: 4px;
+    min-width: 0;
+}
+
+/* One output per block: label on its own line, then value field + copy button */
+.tg-output-row {
+    display: flex;
+    flex-direction: column;
+    min-width: 0;
+}
+
+.tg-output-line {
+    display: flex;
+    align-items: center;
+    gap: 8px;
+    min-width: 0;
+}
+
+/* Form field (matches .cg-field) */
+.tg-field > label {
+    display: block;
+    font-weight: 500;
+    margin-bottom: 4px;
+    font-size: 0.78rem;
+    color: #555;
+}
+
+.tg-field input[type="text"] {
+    width: 100%;
+    padding: 6px 8px;
+    border: 1px solid #ccc;
+    border-radius: 4px;
+    font-size: 0.78rem;
+    font-family: inherit;
+    box-sizing: border-box;
+    background: #fff;
+}
+
+.tg-field input[type="text"]:focus {
+    border-color: var(--md-primary-fg-color);
+    outline: none;
+    box-shadow: 0 0 0 2px rgba(51, 133, 116, 0.15);
+}
+
+.tg-note {
+    margin-top: 10px;
+    font-size: 0.72rem;
+    color: #999;
+    line-height: 1.5;
+}
+
+.tg-note code {
+    font-size: 0.72rem;
+    padding: 1px 4px;
+}
+
+.tg-output-label {
+    margin-bottom: 4px;
+    white-space: nowrap;
+    font-weight: 500;
+    font-size: 0.78rem;
+    color: #555;
+}
+
+/* Copy button (matches .cg-btn-copy) */
+.tg-btn-copy {
+    background: none;
+    color: #777;
+    border: none;
+    padding: 2px 4px;
+    cursor: pointer;
+    line-height: 1;
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    transition: color 0.15s;
+}
+
+.tg-btn-copy:hover {
+    color: #333;
+}
+
+/* Output block (matches .cg-output-wrap pre). Scoped under .tg-generator so the margin
+   reset beats the theme's .md-typeset pre rule, which otherwise adds a stray top margin. */
+.tg-generator .tg-output {
+    flex: 1;
+    min-width: 0;
+    margin: 0;
+    padding: 6px 9px;
+    background: #f5f5f5;
+    color: var(--md-default-fg-color);
+    border: 1px solid #ddd;
+    border-radius: 6px;
+    overflow-x: auto;
+    font-family: var(--md-code-font-family, monospace);
+    font-size: 0.72rem;
+    line-height: 1.5;
+    white-space: pre-wrap;
+    word-break: break-all;
+    overflow-wrap: anywhere;
+}
+
+/* Dark mode */
+body[data-md-color-scheme="slate"] .tg-generator {
+    background: #1e1e2e;
+    border-color: #444;
+}
+
+body[data-md-color-scheme="slate"] .tg-header {
+    border-bottom-color: #444;
+}
+
+body[data-md-color-scheme="slate"] .tg-title {
+    color: #ddd;
+}
+
+body[data-md-color-scheme="slate"] .tg-reset {
+    border-color: #555;
+    color: #888;
+}
+
+body[data-md-color-scheme="slate"] .tg-reset:hover {
+    border-color: #888;
+    color: #ddd;
+}
+
+body[data-md-color-scheme="slate"] .tg-left {
+    border-right-color: #444;
+}
+
+body[data-md-color-scheme="slate"] .tg-field > label,
+body[data-md-color-scheme="slate"] .tg-output-label {
+    color: #aaa;
+}
+
+body[data-md-color-scheme="slate"] .tg-btn-copy {
+    color: #888;
+}
+
+body[data-md-color-scheme="slate"] .tg-btn-copy:hover {
+    color: #bbb;
+}
+
+body[data-md-color-scheme="slate"] .tg-field input[type="text"] {
+    background: #2a2a3a;
+    border-color: #555;
+    color: #ddd;
+}
+
+body[data-md-color-scheme="slate"] .tg-note {
+    color: #777;
+}
+
+body[data-md-color-scheme="slate"] .tg-output {
+    background: #161620;
+    border-color: #444;
+}
+
+/* Responsive: stack panels like the config generator does on mobile */
+@media (max-width: 700px) {
+    .tg-body {
+        flex-direction: column;
+    }
+
+    .tg-left {
+        border-right: none;
+        border-bottom: 1px solid #ddd;
+    }
+
+    body[data-md-color-scheme="slate"] .tg-left {
+        border-bottom-color: #444;
+    }
+}

docs/static/img/badge-fdroid.svg

@@ -0,0 +1,240 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg
+   viewBox="43 43 560 164"
+   version="1.1"
+   id="svg78"
+   sodipodi:docname="get-it-on-en.svg"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   xmlns:xlink="http://www.w3.org/1999/xlink"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:svg="http://www.w3.org/2000/svg">
+  <sodipodi:namedview
+     id="namedview80"
+     pagecolor="#ffffff"
+     bordercolor="#000000"
+     borderopacity="0.25"
+     inkscape:showpageshadow="2"
+     inkscape:pageopacity="0.0"
+     inkscape:pagecheckerboard="0"
+     inkscape:deskcolor="#d1d1d1" />
+  <defs
+     id="defs8">
+    <radialGradient
+       xlink:href="#a"
+       id="b"
+       cx="113"
+       cy="-12.89"
+       r="59.662"
+       fx="113"
+       fy="-12.89"
+       gradientTransform="matrix(0 1.96105 -1.97781 0 254.507 78.763)"
+       gradientUnits="userSpaceOnUse" />
+    <linearGradient
+       id="a">
+      <stop
+         offset="0"
+         style="stop-color:#fff;stop-opacity:.09803922"
+         id="stop3" />
+      <stop
+         offset="1"
+         style="stop-color:#fff;stop-opacity:0"
+         id="stop5" />
+    </linearGradient>
+  </defs>
+  <g
+     transform="translate(-289,-312.362)"
+     id="g76">
+    <path
+       id="rect10"
+       style="display:inline;overflow:visible;stroke:#a6a6a6;stroke-width:4;marker:none"
+       d="m 352,355.362 h 520 c 11.08,0 20,8.92 20,20 v 124 c 0,11.08 -8.92,20 -20,20 H 352 c -11.08,0 -20,-8.92 -20,-20 v -124 c 0,-11.08 8.92,-20 20,-20 z" />
+    <g
+       aria-label="GET IT ON"
+       id="text14"
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+       transform="matrix(2.63159,0,0,2.63157,356.842,-2269.159)"
+       id="g66">
+      <path
+         id="ellipse62"
+         style="opacity:1;fill:#263238;fill-opacity:0.2;stroke-width:1.9;stroke-linecap:round;stroke-opacity:0.697211"
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+      <path
+         id="circle64"
+         style="opacity:1;fill:#ffffff;stroke-width:1.9;stroke-linecap:round;stroke-opacity:0.697211"
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+    </g>
+    <g
+       transform="matrix(2.63159,0,0,2.63157,408.158,-2269.159)"
+       id="g72">
+      <path
+         id="ellipse68"
+         style="opacity:1;fill:#263238;fill-opacity:0.2;stroke-width:1.9;stroke-linecap:round;stroke-opacity:0.697211"
+         d="m 17.75,1016.487 a 3.375,3.875 0 0 1 -3.375,3.875 3.375,3.875 0 0 1 -3.375,-3.875 3.375,3.875 0 0 1 3.375,-3.875 3.375,3.875 0 0 1 3.375,3.875 z" />
+      <path
+         id="circle70"
+         style="opacity:1;fill:#ffffff;stroke-width:1.9;stroke-linecap:round;stroke-opacity:0.697211"
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+    </g>
+    <path
+       d="m 282.715,299.835 a 3.29,3.29 0 0 0 -2.662,5.336 l 9.474,12.261 A 7.9,7.9 0 0 0 289,320.257 v 18.21 a 7.877,7.877 0 0 0 7.895,7.895 h 84.21 A 7.877,7.877 0 0 0 389,338.468 v -18.211 c 0,-0.999 -0.19,-1.949 -0.525,-2.826 l 9.472,-12.26 a 3.29,3.29 0 0 0 -2.433,-5.334 3.29,3.29 0 0 0 -2.772,1.31 l -9.013,11.666 a 7.9,7.9 0 0 0 -2.624,-0.45 h -84.21 c -0.922,0 -1.8,0.163 -2.622,0.45 l -9.015,-11.666 a 3.29,3.29 0 0 0 -2.543,-1.312 m 14.18,49.527 A 7.877,7.877 0 0 0 289,357.257 v 52.21 a 7.877,7.877 0 0 0 7.895,7.895 h 84.21 A 7.877,7.877 0 0 0 389,409.468 v -52.211 a 7.877,7.877 0 0 0 -7.895,-7.895 z"
+       style="color:#000000;font-style:normal;font-variant:normal;font-weight:400;font-stretch:normal;font-size:medium;line-height:normal;font-family:sans-serif;text-indent:0;text-align:start;text-decoration:none;text-decoration-line:none;text-decoration-style:solid;text-decoration-color:#000000;letter-spacing:normal;word-spacing:normal;text-transform:none;writing-mode:lr-tb;direction:ltr;baseline-shift:baseline;text-anchor:start;white-space:normal;clip-rule:nonzero;display:inline;overflow:visible;visibility:visible;opacity:1;isolation:auto;mix-blend-mode:normal;color-interpolation:sRGB;color-interpolation-filters:linearRGB;solid-color:#000000;solid-opacity:1;fill:url(#b);fill-opacity:1;fill-rule:evenodd;stroke:none;stroke-width:6.57895;stroke-linecap:round;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1;color-rendering:auto;image-rendering:auto;shape-rendering:auto;text-rendering:auto"
+       transform="translate(81,76)"
+       id="path74" />
+  </g>
+</svg>

docs/static/js/topic-generator.js

@@ -0,0 +1,121 @@
+// Topic name generator for the ntfy docs
+//
+// A tiny helper that lives on the "Publishing" page. The user types a memorable
+// prefix (e.g. "backups"), and the widget appends a random, hard-to-guess suffix
+// (e.g. "backups-x7Kp2mQ9"). The result is a valid, unguessable topic name.
+//
+// Topic names on the server must match ^[-_A-Za-z0-9]{1,64}$ (see server.go), so as
+// the user types we strip anything that isn't allowed (spaces, slashes, punctuation,
+// emoji, ...) live and cap the whole thing at 64 characters. The random suffix is
+// generated once on load and can be re-rolled with the "Regenerate suffix" button.
+(function () {
+  // Allowed topic characters per the server regex ^[-_A-Za-z0-9]{1,64}$
+  const ALLOWED = /[^-_A-Za-z0-9]/g;
+  const MAX_LEN = 64;
+
+  // Suffix alphabet: full base62 (letters + digits). We deliberately keep look-alikes
+  // (0/O, l/1) for maximum entropy -- this is a generated suffix, not something typed by
+  // hand. Hyphen/underscore are excluded so the "-" separator stays visually clear.
+  const SUFFIX_ALPHABET = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789";
+  const SUFFIX_LEN = 10;
+
+  // randomSuffix returns a cryptographically random string from SUFFIX_ALPHABET.
+  // It uses rejection sampling to avoid the modulo bias that a plain `byte % 62` would
+  // introduce (256 is not a multiple of 62), keeping every character equally likely.
+  function randomSuffix() {
+    const n = SUFFIX_ALPHABET.length;
+    const limit = Math.floor(256 / n) * n; // largest multiple of n that fits in a byte
+    const buf = new Uint8Array(1);
+    let out = "";
+    while (out.length < SUFFIX_LEN) {
+      crypto.getRandomValues(buf);
+      if (buf[0] < limit) {
+        out += SUFFIX_ALPHABET[buf[0] % n];
+      }
+    }
+    return out;
+  }
+
+  // sanitize strips everything that isn't a valid topic character.
+  function sanitize(value) {
+    return value.replace(ALLOWED, "");
+  }
+
+  function initTopicGenerator() {
+    const root = document.getElementById("tg-widget");
+    if (!root) return;
+
+    const input = root.querySelector("#tg-input");
+    const outputName = root.querySelector("#tg-output-name");
+    const outputUrl = root.querySelector("#tg-output-url");
+    const reroll = root.querySelector("#tg-reroll");
+
+    let suffix = randomSuffix();
+
+    // update recomputes the live preview from the (sanitized) input + current suffix.
+    function update() {
+      // Sanitize in place so the user sees disallowed characters disappear as they type.
+      const cleaned = sanitize(input.value);
+      if (cleaned !== input.value) {
+        const pos = input.selectionStart - (input.value.length - cleaned.length);
+        // Reassigning .value and setSelectionRange make the browser scroll the field into
+        // view (there is no preventScroll option for setSelectionRange), which jumps the
+        // whole page. Capture the scroll position and restore it afterwards.
+        const scrollX = window.scrollX;
+        const scrollY = window.scrollY;
+        input.value = cleaned;
+        // Best-effort caret restore so removing a bad char doesn't jump the cursor to the end.
+        try { input.setSelectionRange(pos, pos); } catch { /* ignore */ }
+        window.scrollTo(scrollX, scrollY);
+      }
+
+      // Compose "<prefix>-<suffix>", capped at the 64-char topic limit. With no prefix,
+      // fall back to just the random suffix so the output is always a valid topic.
+      let topic;
+      if (cleaned === "") {
+        topic = suffix;
+      } else {
+        const maxPrefix = MAX_LEN - suffix.length - 1; // room for "-" + suffix
+        const prefix = cleaned.slice(0, Math.max(0, maxPrefix));
+        topic = prefix === "" ? suffix : prefix + "-" + suffix;
+      }
+
+      outputName.textContent = topic;
+      outputUrl.textContent = "https://ntfy.sh/" + topic;
+    }
+
+    input.addEventListener("input", update);
+    reroll.addEventListener("click", function () {
+      suffix = randomSuffix();
+      update();
+      input.focus();
+    });
+
+    // Copy buttons: copy the target output and briefly swap the clipboard icon for a checkmark,
+    // mirroring the config generator's copy button behavior.
+    const copyIcon = "<svg xmlns=\"http://www.w3.org/2000/svg\" width=\"14\" height=\"14\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><rect x=\"9\" y=\"9\" width=\"13\" height=\"13\" rx=\"2\" ry=\"2\"></rect><path d=\"M5 15H4a2 2 0 0 1-2-2V4a2 2 0 0 1 2-2h9a2 2 0 0 1 2 2v1\"></path></svg>";
+    const checkIcon = "<svg xmlns=\"http://www.w3.org/2000/svg\" width=\"14\" height=\"14\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><polyline points=\"20 6 9 17 4 12\"></polyline></svg>";
+    root.querySelectorAll(".tg-btn-copy").forEach(function (btn) {
+      btn.addEventListener("click", function () {
+        const target = root.querySelector("#" + btn.dataset.copy);
+        if (!target || !target.textContent) return;
+        navigator.clipboard.writeText(target.textContent).then(function () {
+          btn.innerHTML = checkIcon;
+          btn.style.color = "var(--md-primary-fg-color)";
+          setTimeout(function () {
+            btn.innerHTML = copyIcon;
+            btn.style.color = "";
+          }, 2000);
+        });
+      });
+    });
+
+    update();
+  }
+
+  if (document.readyState === "loading") {
+    document.addEventListener("DOMContentLoaded", initTopicGenerator);
+  } else {
+    initTopicGenerator();
+  }
+})();

docs/subscribe/phone.md

@@ -5,7 +5,7 @@ on GitHub ([Android](https://github.com/binwiederhier/ntfy-android), [iOS](https
 contribute, or [build your own](../develop.md).
 
 <a href="https://play.google.com/store/apps/details?id=io.heckel.ntfy"><img width="170" src="../../static/img/badge-googleplay.png"></a>
-<a href="https://f-droid.org/en/packages/io.heckel.ntfy/"><img width="170" src="../../static/img/badge-fdroid.png"></a>
+<a href="https://f-droid.org/en/packages/io.heckel.ntfy/"><img width="170" src="../../static/img/badge-fdroid.svg"></a>
 <a href="https://apps.apple.com/us/app/ntfy/id1625396347"><img width="150" src="../../static/img/badge-appstore.png"></a>
 
 You can get the Android app from [Google Play](https://play.google.com/store/apps/details?id=io.heckel.ntfy), 
@@ -82,9 +82,8 @@ you'll see as a permanent notification that looks like this:
   <figcaption>Instant delivery foreground notification</figcaption>
 </figure>
 
-Android does not allow you to dismiss this notification, unless you turn off the notification channel in the settings.
-To do so, long-press on the foreground notification (screenshot above) and navigate to the settings. Then toggle the 
-"Subscription Service" off:
+To turn off this notification, long-press on the foreground notification (screenshot above) and navigate to the 
+settings. Then toggle the "Subscription Service" off:
 
 <figure markdown>
   ![foreground service](../static/img/notification-settings.png){ width=500 }
@@ -102,6 +101,28 @@ notifications. Firebase is overall pretty bad at delivering messages in time, bu
 The ntfy Android app uses Firebase only for the main host `ntfy.sh`, and only in the Google Play flavor of the app.
 It won't use Firebase for any self-hosted servers, and not at all in the F-Droid flavor.
 
+!!! info "F-Droid: Always instant delivery"
+    Since the F-Droid build does not include Firebase, **all subscriptions use instant delivery by default**, and 
+    there is no option to disable it. The F-Droid app hides all mentions of "instant delivery" in the UI, since 
+    showing options that can't be changed would only be confusing.
+
+## Publishing messages
+_Supported on:_ :material-android:
+
+The Android app allows you to **publish messages directly from the app**, without needing to use curl or any other 
+tool. When enabled in the settings (Settings → General → Show message bar), a **message bar** appears at the bottom 
+of the topic view (it's enabled by default). You can type a message and tap the send button to publish it instantly.
+If the message bar is disabled, you can tap the floating action button (FAB) at the bottom right instead.
+
+For more options, tap the expand button next to the send button to open the full **publish dialog**. The dialog lets 
+you compose a full notification with all available options, including title, tags, priority, click URL, email 
+forwarding, delayed delivery, attachments, Markdown formatting, and phone calls.
+
+<div id="publish-screenshots" class="screenshots">
+    <a href="../../static/img/android-screenshot-publish-message-bar.jpg"><img src="../../static/img/android-screenshot-publish-message-bar.jpg"/></a>
+    <a href="../../static/img/android-screenshot-publish-dialog.jpg"><img src="../../static/img/android-screenshot-publish-dialog.jpg"/></a>
+</div>
+
 ## Share to topic
 _Supported on:_ :material-android:
 
@@ -135,6 +156,67 @@ or to simply directly link to a topic from a mobile website.
 | <span style="white-space: nowrap">`ntfy://<host>/<topic>?display=<name>`</span> | `ntfy://ntfy.sh/mytopic?display=My+Topic` | Same as above, but also defines a display name for the topic.                                                                                                                                       |
 | <span style="white-space: nowrap">`ntfy://<host>/<topic>?secure=false`</span>   | `ntfy://example.com/mytopic?secure=false` | Same as above, except that this will use HTTP instead of HTTPS as topic URL. This is equivalent to the web view `http://example.com/mytopic` (HTTP!)                                                |
 
+## Advanced settings
+
+### Custom headers
+_Supported on:_ :material-android:
+
+If your ntfy server is behind an **authenticated proxy or tunnel** (e.g., Cloudflare Access, Tailscale Funnel, or 
+a reverse proxy with basic auth), you can configure custom HTTP headers that will be sent with every request to 
+that server. You could set headers such as `Authorization`, `CF-Access-Client-Id`, or any other headers required by
+your setup. To add custom headers, go to **Settings → Advanced → Custom headers**.
+
+<div id="custom-headers-screenshots" class="screenshots">
+    <a href="../../static/img/android-screenshot-custom-headers.jpg"><img src="../../static/img/android-screenshot-custom-headers.jpg"/></a>
+    <a href="../../static/img/android-screenshot-custom-headers-add.jpg"><img src="../../static/img/android-screenshot-custom-headers-add.jpg"/></a>
+</div>
+
+!!! warning
+    If you have a user configured for a server, you cannot add an `Authorization` header for that server, as ntfy
+    sets this header automatically. Similarly, if you have a custom `Authorization` header, you cannot add a user
+    for that server.
+
+### Manage certificates
+_Supported on:_ :material-android:
+
+If you're running a self-hosted ntfy server with a **self-signed certificate** or need to use **mutual TLS (mTLS)** 
+for client authentication, you can manage certificates in the app settings.
+
+Go to **Settings → Advanced → Manage certificates** to:
+
+- **Add trusted certificates**: Import a server certificate (PEM format) to trust when connecting to your ntfy server.
+  This is useful for self-signed certificates that are not trusted by the Android system.
+- **Add client certificates**: Import a client certificate (PKCS#12 format) for mutual TLS authentication. This 
+  certificate will be presented to the server when connecting.
+
+When you subscribe to a topic on a server with an untrusted certificate, the app will show a security warning and 
+allow you to review and trust the certificate.
+
+<div id="certificates-screenshots" class="screenshots">
+    <a href="../../static/img/android-screenshot-certs-manage.jpg"><img src="../../static/img/android-screenshot-certs-manage.jpg"/></a>
+    <a href="../../static/img/android-screenshot-certs-warning-dialog.jpg"><img src="../../static/img/android-screenshot-certs-warning-dialog.jpg"/></a>
+</div>
+
+### Language
+_Supported on:_ :material-android:
+
+The Android app supports many languages and uses the **system language by default**. If you'd like to use the app in 
+a different language than your system, you can override it in **Settings → General → Language**.
+
+<div id="language-screenshots" class="screenshots">
+    <a href="../../static/img/android-screenshot-language-selection.jpg"><img src="../../static/img/android-screenshot-language-selection.jpg"/></a>
+    <a href="../../static/img/android-screenshot-language-german.jpg"><img src="../../static/img/android-screenshot-language-german.jpg"/></a>
+    <a href="../../static/img/android-screenshot-language-hebrew.jpg"><img src="../../static/img/android-screenshot-language-hebrew.jpg"/></a>
+    <a href="../../static/img/android-screenshot-language-chinese.jpg"><img src="../../static/img/android-screenshot-language-chinese.jpg"/></a>
+</div>
+
+The app currently supports over 30 languages, including English, German, French, Spanish, Chinese, Japanese, and many
+more. Languages with more than 80% of strings translated are shown in the language picker.
+
+!!! tip "Help translate ntfy"
+    If you'd like to help translate ntfy into your language or improve existing translations, please visit the
+    [ntfy Weblate project](https://hosted.weblate.org/projects/ntfy/). Contributions are very welcome!
+
 ## Integrations
 
 ### UnifiedPush
@@ -168,10 +250,13 @@ Here's an example using [MacroDroid](https://play.google.com/store/apps/details?
 and [Tasker](https://play.google.com/store/apps/details?id=net.dinglisch.android.taskerm), but any app that can catch 
 broadcasts is supported:
 
-<div id="integration-screenshots-receive" class="screenshots">
+<div id="integration-screenshots-receive-1" class="screenshots">
     <a href="../../static/img/android-screenshot-macrodroid-overview.png"><img src="../../static/img/android-screenshot-macrodroid-overview.png"/></a>
     <a href="../../static/img/android-screenshot-macrodroid-trigger.png"><img src="../../static/img/android-screenshot-macrodroid-trigger.png"/></a>
     <a href="../../static/img/android-screenshot-macrodroid-action.png"><img src="../../static/img/android-screenshot-macrodroid-action.png"/></a>
+</div>
+
+<div id="integration-screenshots-receive-2" class="screenshots">
     <a href="../../static/img/android-screenshot-tasker-profiles.png"><img src="../../static/img/android-screenshot-tasker-profiles.png"/></a>
     <a href="../../static/img/android-screenshot-tasker-event-edit.png"><img src="../../static/img/android-screenshot-tasker-event-edit.png"/></a>
     <a href="../../static/img/android-screenshot-tasker-task-edit.png"><img src="../../static/img/android-screenshot-tasker-task-edit.png"/></a>
@@ -239,3 +324,29 @@ The following intent extras are supported when for the intent with the `io.hecke
 | `message` ❤️ | ✔        | *String*                      | `Some message`    | Message body; **you must set this**                                                |
 | `tags`       | -        | *String*                      | `tag1,tag2,..`    | Comma-separated list of [tags](../publish.md#tags-emojis)                          |
 | `priority`   | -        | *String or Int (between 1-5)* | `4`               | Message [priority](../publish.md#message-priority) with 1=min, 3=default and 5=max |
+
+## Troubleshooting
+
+### Connection error dialog
+_Supported on:_ :material-android:
+
+If the app has trouble connecting to a ntfy server, a **warning icon** will appear in the app bar. Tapping it opens
+the **connection error dialog**, which shows detailed information about the connection problem and helps you diagnose
+the issue.
+
+<div id="connection-error-screenshots" class="screenshots">
+    <a href="../../static/img/android-screenshot-connection-error-warning.jpg"><img src="../../static/img/android-screenshot-connection-error-warning.jpg"/></a>
+    <a href="../../static/img/android-screenshot-connection-error-dialog.jpg"><img src="../../static/img/android-screenshot-connection-error-dialog.jpg"/></a>
+</div>
+
+Common connection errors include:
+
+| Error | Description |
+|-------|-------------|
+| Connection refused | The server may be down or the address may be incorrect |
+| WebSocket not supported | The server may not support WebSocket connections, or a proxy is blocking them |
+| Not authorized (401/403) | Username/password may be incorrect, or access credentials have expired |
+| Certificate not trusted | The server is using a self-signed certificate (see [Manage certificates](#manage-certificates)) |
+
+If you're having persistent connection issues, you can also check the app logs under **Settings → Advanced → Record logs**
+and share them for debugging.

docs/terms.md

@@ -0,0 +1,257 @@
+# Terms of Service
+
+**Last updated:** January 26, 2026
+
+Please read these Terms of Service ("Terms") carefully before using the ntfy.sh website and service (the "Service") 
+operated by ntfy LLC ("us", "we", or "our").
+
+Your access to and use of the Service is conditioned on your acceptance of and compliance with these Terms. These 
+Terms apply to all visitors, users, and others who access or use the Service.
+
+**By accessing or using the Service, you agree to be bound by these Terms. If you disagree with any part of the 
+Terms, you may not access the Service.**
+
+## Service description
+
+ntfy (pronounced "notify") is a simple HTTP-based pub-sub notification service. It allows you to send push 
+notifications to your phone or desktop via scripts from any computer, using a REST API. The Service includes:
+
+- The ntfy.sh hosted server
+- The ntfy web application
+- The ntfy mobile applications (Android and iOS)
+- The ntfy command-line interface (CLI)
+
+The server software and mobile applications are open source and can be [self-hosted](install.md). These Terms 
+apply specifically to the ntfy.sh hosted service.
+
+## Subscriptions and billing
+
+### Free tier
+
+You may use the Service without creating an account or subscribing to a paid plan. Free usage is subject to 
+rate limits and other restrictions as described in our documentation.
+
+### Paid plans
+
+Some features of the Service are available only through paid subscription plans ("Subscriptions"). You will 
+be billed in advance on a recurring basis ("Billing Cycle"). Billing cycles are available on a monthly or 
+annual basis.
+
+At the end of each Billing Cycle, your Subscription will automatically renew under the same conditions unless 
+you cancel it or we cancel it. You may cancel your Subscription renewal through your account settings in the 
+web application.
+
+A valid payment method is required to process payment for your Subscription. You shall provide us with accurate 
+and complete billing information. By submitting such payment information, you authorize us to charge all 
+Subscription fees incurred through your account to your payment method.
+
+Payment processing is handled by Stripe. Your payment information is subject to Stripe's 
+[privacy policy](https://stripe.com/privacy) and [terms of service](https://stripe.com/legal).
+
+Should automatic billing fail to occur for any reason, we will retry the payment according to Stripe's retry 
+schedule. If payment continues to fail after multiple attempts, your Subscription will be canceled and your 
+account will revert to the free tier.
+
+### Fee changes
+
+We may, in our sole discretion and at any time, modify the Subscription fees for paid plans. Any fee change 
+will become effective at the end of the then-current Billing Cycle.
+
+We will provide you with reasonable prior notice of any change in Subscription fees to give you an opportunity 
+to cancel your Subscription before such change becomes effective.
+
+Your continued use of the Service after a fee change comes into effect constitutes your agreement to pay the 
+modified Subscription fee.
+
+## Refunds
+
+Refund requests for Subscriptions may be considered on a case-by-case basis and granted at the sole discretion 
+of ntfy LLC. To request a refund, please contact us at [billing@mail.ntfy.sh](mailto:billing@mail.ntfy.sh).
+
+## User accounts
+
+When you create an account with us, you must provide information that is accurate, complete, and current at 
+all times. Failure to do so constitutes a breach of the Terms, which may result in immediate termination of 
+your account.
+
+You are responsible for:
+
+- Safeguarding the password that you use to access the Service
+- Any activities or actions under your account, whether your password is with our Service or a third-party service
+- Keeping your account credentials confidential
+
+You agree not to disclose your password to any third party. You must notify us immediately upon becoming aware 
+of any breach of security or unauthorized use of your account.
+
+You represent that you are at least 18 years old, or that you are at least the minimum age required to form
+a binding contract in your jurisdiction, and have the legal authority to enter into these Terms.
+
+## Acceptable use
+
+You agree not to use the Service to:
+
+- Send spam, unsolicited messages, or messages to recipients who have not consented to receive them
+- Distribute malware, viruses, or any other malicious software
+- Transmit illegal content or content that violates the rights of others
+- Harass, abuse, or harm another person or group
+- Impersonate any person or entity, or falsely state or misrepresent your affiliation with a person or entity
+- Interfere with or disrupt the Service or servers or networks connected to the Service
+- Attempt to gain unauthorized access to the Service, other accounts, or computer systems
+- Use the Service for any illegal purpose or in violation of any applicable laws or regulations
+- Circumvent rate limits or other technical restrictions
+- Use the Service in a manner that could reasonably be expected to impose an unreasonable or disproportionately
+  large load on our infrastructure
+
+We reserve the right to investigate and take appropriate action against anyone who, in our sole discretion, 
+violates this provision, including removing content, terminating accounts, and reporting to law enforcement.
+
+### Topic names
+
+Topic names on ntfy.sh are public. If you use the Service without access controls, your topic name functions 
+as a password. You are responsible for choosing topic names that cannot be easily guessed. We are not responsible 
+for any unauthorized access to messages published to easily guessable topic names.
+
+For reserved topics and access control features, consider subscribing to a paid plan.
+
+## Intellectual property
+
+### Open source software
+
+The ntfy server, web application, and mobile applications are open source software, dual-licensed under the 
+[Apache License 2.0](https://github.com/binwiederhier/ntfy/blob/main/LICENSE) and 
+[GPLv2](https://github.com/binwiederhier/ntfy/blob/main/LICENSE.GPLv2). You are free to use, modify, and 
+distribute the software in accordance with these licenses.
+
+### Trademarks
+
+The ntfy name, logo, and branding are trademarks of ntfy LLC. Our trademarks may not be used in connection 
+with any product or service without our prior written consent.
+
+### Your content
+
+You retain ownership of any content you transmit through the Service. By using the Service, you grant us a 
+limited license to process and transmit your content solely for the purpose of providing the Service.
+
+## Service availability
+
+The Service is provided on a "best effort" basis. We do not guarantee any specific uptime or availability.
+
+We strive to maintain high availability, but the Service may be interrupted for maintenance, updates, or 
+due to circumstances beyond our control. We will make reasonable efforts to notify users of planned 
+maintenance when possible.
+
+For applications requiring guaranteed uptime or specific service level agreements, we recommend 
+[self-hosting your own ntfy server](install.md).
+
+A [status page](https://ntfy.statuspage.io/) is available to check the current operational status of the Service.
+
+## Third-party services
+
+The Service relies on third-party services to provide certain functionality:
+
+- **Firebase Cloud Messaging (FCM)** - For push notifications to Android and iOS devices
+- **Twilio** - For phone call notifications
+- **Amazon SES** - For email notifications
+- **Stripe** - For payment processing
+
+Your use of these features is subject to the respective third-party terms and privacy policies. For more 
+details, see our [privacy policy](privacy.md).
+
+## Links to other websites
+
+Our Service may contain links to third-party websites or services that are not owned or controlled by us.
+
+We have no control over, and assume no responsibility for, the content, privacy policies, or practices of 
+any third-party websites or services. You acknowledge and agree that we shall not be responsible or liable, 
+directly or indirectly, for any damage or loss caused by or in connection with the use of any such content, 
+goods, or services available through any such websites or services.
+
+## Termination
+
+We may terminate or suspend your account immediately, without prior notice or liability, for any reason 
+whatsoever, including without limitation if you breach these Terms.
+
+Upon termination, your right to use the Service will immediately cease. If you wish to terminate your account, 
+you may do so through your account settings or by simply discontinuing use of the Service.
+
+Termination of your account will result in the deletion of your account data in accordance with our 
+[privacy policy](privacy.md).
+
+We may retain certain data as required to comply with legal obligations, resolve disputes, and enforce our
+agreements, as described in our privacy policy.
+
+## Limitation of liability
+
+In no event shall ntfy LLC, nor its owner, employees, partners, agents, suppliers, or affiliates, be liable 
+for any indirect, incidental, special, consequential, or punitive damages, including without limitation:
+
+- Loss of profits, data, use, goodwill, or other intangible losses
+- Damages resulting from your access to, use of, or inability to access or use the Service
+- Damages resulting from any conduct or content of any third party on the Service
+- Damages resulting from any content obtained from the Service
+- Damages resulting from unauthorized access, use, or alteration of your transmissions or content
+
+This limitation applies whether based on warranty, contract, tort (including negligence), or any other legal 
+theory, whether or not we have been informed of the possibility of such damage, and even if a remedy set 
+forth herein is found to have failed of its essential purpose.
+
+## Indemnification
+
+You agree to defend, indemnify, and hold harmless ntfy LLC and its owner, employees, partners, agents, suppliers,
+and affiliates from and against any claims, damages, obligations, losses, liabilities, costs, or debt, and
+expenses (including but not limited to attorney's fees) arising from:
+
+- Your use of and access to the Service
+- Your violation of any term of these Terms
+- Your violation of any applicable law or regulation
+- Your content, including any claim that your content infringes or misappropriates the rights of any third party
+
+## Disclaimer
+
+Your use of the Service is at your sole risk. The Service is provided on an "AS IS" and "AS AVAILABLE" basis, 
+without warranties of any kind, whether express or implied, including but not limited to implied warranties of 
+merchantability, fitness for a particular purpose, non-infringement, or course of performance.
+
+ntfy LLC does not warrant that:
+
+- The Service will function uninterrupted, secure, or available at any particular time or location
+- Any errors or defects will be corrected
+- The Service is free of viruses or other harmful components
+- The results of using the Service will meet your requirements
+- Messages will be delivered successfully or in a timely manner
+
+If your use case requires guaranteed message delivery, high availability, or handling of sensitive data, we 
+strongly recommend [self-hosting your own ntfy server](install.md) where you have full control over the 
+infrastructure and data.
+
+## Governing law
+
+These Terms shall be governed and construed in accordance with the laws of the State of Connecticut, United States,
+without regard to its conflict of law provisions.
+
+Any legal action or proceeding arising under these Terms shall be brought exclusively in the federal or state
+courts located in Connecticut, and the parties hereby consent to personal jurisdiction and venue therein.
+
+Our failure to enforce any right or provision of these Terms will not be considered a waiver of those rights. 
+If any provision of these Terms is held to be invalid or unenforceable by a court, the remaining provisions 
+of these Terms will remain in effect.
+
+These Terms constitute the entire agreement between us regarding our Service and supersede any prior agreements 
+we might have had regarding the Service.
+
+## Changes to these Terms
+
+We reserve the right, at our sole discretion, to modify or replace these Terms at any time. If a revision is 
+material, we will try to provide at least 30 days' notice prior to any new terms taking effect.
+
+What constitutes a material change will be determined at our sole discretion. Changes will be posted on this 
+page with an updated "Last updated" date. You may also review all changes in the 
+[Git history](https://github.com/binwiederhier/ntfy/commits/main/docs/terms.md).
+
+By continuing to access or use our Service after those revisions become effective, you agree to be bound by 
+the revised Terms. If you do not agree to the new Terms, please stop using the Service.
+
+## Contact
+
+If you have any questions about these Terms, please see our [contact page](contact.md) or email us at 
+[support@mail.ntfy.sh](mailto:support@mail.ntfy.sh).

go.mod

@@ -1,27 +1,25 @@
 module heckel.io/ntfy/v2
 
-go 1.24.0
-
-toolchain go1.24.5
+go 1.25.8
 
 require (
-	cloud.google.com/go/firestore v1.21.0 // indirect
-	cloud.google.com/go/storage v1.59.1 // indirect
+	cloud.google.com/go/firestore v1.22.0 // indirect
+	cloud.google.com/go/storage v1.62.3 // indirect
 	github.com/BurntSushi/toml v1.6.0 // indirect
 	github.com/cpuguy83/go-md2man/v2 v2.0.7 // indirect
-	github.com/emersion/go-smtp v0.18.0
-	github.com/gabriel-vasile/mimetype v1.4.12
+	github.com/emersion/go-smtp v0.24.0
+	github.com/gabriel-vasile/mimetype v1.4.13
 	github.com/gorilla/websocket v1.5.3
-	github.com/mattn/go-sqlite3 v1.14.33
+	github.com/mattn/go-sqlite3 v1.14.47
 	github.com/olebedev/when v1.1.0
 	github.com/stretchr/testify v1.11.1
 	github.com/urfave/cli/v2 v2.27.7
-	golang.org/x/crypto v0.47.0
-	golang.org/x/oauth2 v0.34.0 // indirect
-	golang.org/x/sync v0.19.0
-	golang.org/x/term v0.39.0
-	golang.org/x/time v0.14.0
-	google.golang.org/api v0.260.0
+	golang.org/x/crypto v0.53.0
+	golang.org/x/oauth2 v0.36.0 // indirect
+	golang.org/x/sync v0.21.0
+	golang.org/x/term v0.44.0
+	golang.org/x/time v0.15.0
+	google.golang.org/api v0.286.0
 	gopkg.in/yaml.v2 v2.4.0
 )
 
@@ -30,75 +28,78 @@ replace github.com/emersion/go-smtp => github.com/emersion/go-smtp v0.17.0 // Pi
 require github.com/pkg/errors v0.9.1 // indirect
 
 require (
-	firebase.google.com/go/v4 v4.18.0
+	firebase.google.com/go/v4 v4.20.0
 	github.com/SherClockHolmes/webpush-go v1.4.0
+	github.com/jackc/pgx/v5 v5.10.0
 	github.com/microcosm-cc/bluemonday v1.0.27
 	github.com/prometheus/client_golang v1.23.2
 	github.com/stripe/stripe-go/v74 v74.30.0
-	golang.org/x/sys v0.40.0
-	golang.org/x/text v0.33.0
+	golang.org/x/sys v0.46.0
+	golang.org/x/text v0.38.0
 )
 
 require (
-	cel.dev/expr v0.25.1 // indirect
+	cel.dev/expr v0.25.2 // indirect
 	cloud.google.com/go v0.123.0 // indirect
-	cloud.google.com/go/auth v0.18.0 // indirect
+	cloud.google.com/go/auth v0.20.0 // indirect
 	cloud.google.com/go/auth/oauth2adapt v0.2.8 // indirect
 	cloud.google.com/go/compute/metadata v0.9.0 // indirect
-	cloud.google.com/go/iam v1.5.3 // indirect
-	cloud.google.com/go/longrunning v0.8.0 // indirect
-	cloud.google.com/go/monitoring v1.24.3 // indirect
+	cloud.google.com/go/iam v1.11.0 // indirect
+	cloud.google.com/go/longrunning v1.0.0 // indirect
+	cloud.google.com/go/monitoring v1.29.0 // indirect
 	github.com/AlekSi/pointer v1.2.0 // indirect
-	github.com/GoogleCloudPlatform/opentelemetry-operations-go/detectors/gcp v1.30.0 // indirect
-	github.com/GoogleCloudPlatform/opentelemetry-operations-go/exporter/metric v0.54.0 // indirect
-	github.com/GoogleCloudPlatform/opentelemetry-operations-go/internal/resourcemapping v0.54.0 // indirect
+	github.com/GoogleCloudPlatform/opentelemetry-operations-go/detectors/gcp v1.33.0 // indirect
+	github.com/GoogleCloudPlatform/opentelemetry-operations-go/exporter/metric v0.57.0 // indirect
+	github.com/GoogleCloudPlatform/opentelemetry-operations-go/internal/resourcemapping v0.57.0 // indirect
 	github.com/MicahParks/keyfunc v1.9.0 // indirect
 	github.com/aymerick/douceur v0.2.0 // indirect
 	github.com/beorn7/perks v1.0.1 // indirect
 	github.com/cespare/xxhash/v2 v2.3.0 // indirect
-	github.com/cncf/xds/go v0.0.0-20251210132809-ee656c7534f5 // indirect
+	github.com/cncf/xds/go v0.0.0-20260202195803-dba9d589def2 // indirect
 	github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc // indirect
 	github.com/emersion/go-sasl v0.0.0-20241020182733-b788ff22d5a6 // indirect
-	github.com/envoyproxy/go-control-plane/envoy v1.36.0 // indirect
-	github.com/envoyproxy/protoc-gen-validate v1.3.0 // indirect
-	github.com/felixge/httpsnoop v1.0.4 // indirect
-	github.com/go-jose/go-jose/v4 v4.1.3 // indirect
+	github.com/envoyproxy/go-control-plane/envoy v1.37.0 // indirect
+	github.com/envoyproxy/protoc-gen-validate v1.3.3 // indirect
+	github.com/felixge/httpsnoop v1.1.0 // indirect
+	github.com/go-jose/go-jose/v4 v4.1.4 // indirect
 	github.com/go-logr/logr v1.4.3 // indirect
 	github.com/go-logr/stdr v1.2.2 // indirect
 	github.com/golang-jwt/jwt/v4 v4.5.2 // indirect
-	github.com/golang-jwt/jwt/v5 v5.3.0 // indirect
+	github.com/golang-jwt/jwt/v5 v5.3.1 // indirect
 	github.com/golang/protobuf v1.5.4 // indirect
 	github.com/google/s2a-go v0.1.9 // indirect
 	github.com/google/uuid v1.6.0 // indirect
-	github.com/googleapis/enterprise-certificate-proxy v0.3.11 // indirect
-	github.com/googleapis/gax-go/v2 v2.16.0 // indirect
+	github.com/googleapis/enterprise-certificate-proxy v0.3.16 // indirect
+	github.com/googleapis/gax-go/v2 v2.22.0 // indirect
 	github.com/gorilla/css v1.0.1 // indirect
+	github.com/jackc/pgpassfile v1.0.0 // indirect
+	github.com/jackc/pgservicefile v0.0.0-20240606120523-5a60cdf6a761 // indirect
+	github.com/jackc/puddle/v2 v2.2.2 // indirect
 	github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822 // indirect
 	github.com/planetscale/vtprotobuf v0.6.1-0.20240319094008-0393e58bdf10 // indirect
 	github.com/pmezard/go-difflib v1.0.1-0.20181226105442-5d4384ee4fb2 // indirect
 	github.com/prometheus/client_model v0.6.2 // indirect
-	github.com/prometheus/common v0.67.5 // indirect
-	github.com/prometheus/procfs v0.19.2 // indirect
+	github.com/prometheus/common v0.69.0 // indirect
+	github.com/prometheus/procfs v0.20.1 // indirect
 	github.com/russross/blackfriday/v2 v2.1.0 // indirect
-	github.com/spiffe/go-spiffe/v2 v2.6.0 // indirect
+	github.com/spiffe/go-spiffe/v2 v2.8.1 // indirect
 	github.com/stretchr/objx v0.5.2 // indirect
 	github.com/xrash/smetrics v0.0.0-20250705151800-55b8f293f342 // indirect
 	go.opentelemetry.io/auto/sdk v1.2.1 // indirect
-	go.opentelemetry.io/contrib/detectors/gcp v1.39.0 // indirect
-	go.opentelemetry.io/contrib/instrumentation/google.golang.org/grpc/otelgrpc v0.64.0 // indirect
-	go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.64.0 // indirect
-	go.opentelemetry.io/otel v1.39.0 // indirect
-	go.opentelemetry.io/otel/metric v1.39.0 // indirect
-	go.opentelemetry.io/otel/sdk v1.39.0 // indirect
-	go.opentelemetry.io/otel/sdk/metric v1.39.0 // indirect
-	go.opentelemetry.io/otel/trace v1.39.0 // indirect
-	go.yaml.in/yaml/v2 v2.4.3 // indirect
-	golang.org/x/net v0.49.0 // indirect
+	go.opentelemetry.io/contrib/detectors/gcp v1.44.0 // indirect
+	go.opentelemetry.io/contrib/instrumentation/google.golang.org/grpc/otelgrpc v0.69.0 // indirect
+	go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.69.0 // indirect
+	go.opentelemetry.io/otel v1.44.0 // indirect
+	go.opentelemetry.io/otel/metric v1.44.0 // indirect
+	go.opentelemetry.io/otel/sdk v1.44.0 // indirect
+	go.opentelemetry.io/otel/sdk/metric v1.44.0 // indirect
+	go.opentelemetry.io/otel/trace v1.44.0 // indirect
+	golang.org/x/net v0.56.0 // indirect
 	google.golang.org/appengine/v2 v2.0.6 // indirect
-	google.golang.org/genproto v0.0.0-20260114163908-3f89685c29c3 // indirect
-	google.golang.org/genproto/googleapis/api v0.0.0-20260114163908-3f89685c29c3 // indirect
-	google.golang.org/genproto/googleapis/rpc v0.0.0-20260114163908-3f89685c29c3 // indirect
-	google.golang.org/grpc v1.78.0 // indirect
+	google.golang.org/genproto v0.0.0-20260622175928-b703f567277d // indirect
+	google.golang.org/genproto/googleapis/api v0.0.0-20260622175928-b703f567277d // indirect
+	google.golang.org/genproto/googleapis/rpc v0.0.0-20260622175928-b703f567277d // indirect
+	google.golang.org/grpc v1.81.1 // indirect
 	google.golang.org/protobuf v1.36.11 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
 )

go.sum

@@ -1,41 +1,41 @@
-cel.dev/expr v0.25.1 h1:1KrZg61W6TWSxuNZ37Xy49ps13NUovb66QLprthtwi4=
-cel.dev/expr v0.25.1/go.mod h1:hrXvqGP6G6gyx8UAHSHJ5RGk//1Oj5nXQ2NI02Nrsg4=
+cel.dev/expr v0.25.2 h1:K6j46C81hXtZQfuX60cVWQFBJahKSE2gfRbNuvr5bFs=
+cel.dev/expr v0.25.2/go.mod h1:hrXvqGP6G6gyx8UAHSHJ5RGk//1Oj5nXQ2NI02Nrsg4=
 cloud.google.com/go v0.123.0 h1:2NAUJwPR47q+E35uaJeYoNhuNEM9kM8SjgRgdeOJUSE=
 cloud.google.com/go v0.123.0/go.mod h1:xBoMV08QcqUGuPW65Qfm1o9Y4zKZBpGS+7bImXLTAZU=
-cloud.google.com/go/auth v0.18.0 h1:wnqy5hrv7p3k7cShwAU/Br3nzod7fxoqG+k0VZ+/Pk0=
-cloud.google.com/go/auth v0.18.0/go.mod h1:wwkPM1AgE1f2u6dG443MiWoD8C3BtOywNsUMcUTVDRo=
+cloud.google.com/go/auth v0.20.0 h1:kXTssoVb4azsVDoUiF8KvxAqrsQcQtB53DcSgta74CA=
+cloud.google.com/go/auth v0.20.0/go.mod h1:942/yi/itH1SsmpyrbnTMDgGfdy2BUqIKyd0cyYLc5Q=
 cloud.google.com/go/auth/oauth2adapt v0.2.8 h1:keo8NaayQZ6wimpNSmW5OPc283g65QNIiLpZnkHRbnc=
 cloud.google.com/go/auth/oauth2adapt v0.2.8/go.mod h1:XQ9y31RkqZCcwJWNSx2Xvric3RrU88hAYYbjDWYDL+c=
 cloud.google.com/go/compute/metadata v0.9.0 h1:pDUj4QMoPejqq20dK0Pg2N4yG9zIkYGdBtwLoEkH9Zs=
 cloud.google.com/go/compute/metadata v0.9.0/go.mod h1:E0bWwX5wTnLPedCKqk3pJmVgCBSM6qQI1yTBdEb3C10=
-cloud.google.com/go/firestore v1.21.0 h1:BhopUsx7kh6NFx77ccRsHhrtkbJUmDAxNY3uapWdjcM=
-cloud.google.com/go/firestore v1.21.0/go.mod h1:1xH6HNcnkf/gGyR8udd6pFO4Z7GWJSwLKQMx/u6UrP4=
-cloud.google.com/go/iam v1.5.3 h1:+vMINPiDF2ognBJ97ABAYYwRgsaqxPbQDlMnbHMjolc=
-cloud.google.com/go/iam v1.5.3/go.mod h1:MR3v9oLkZCTlaqljW6Eb2d3HGDGK5/bDv93jhfISFvU=
-cloud.google.com/go/logging v1.13.1 h1:O7LvmO0kGLaHY/gq8cV7T0dyp6zJhYAOtZPX4TF3QtY=
-cloud.google.com/go/logging v1.13.1/go.mod h1:XAQkfkMBxQRjQek96WLPNze7vsOmay9H5PqfsNYDqvw=
-cloud.google.com/go/longrunning v0.8.0 h1:LiKK77J3bx5gDLi4SMViHixjD2ohlkwBi+mKA7EhfW8=
-cloud.google.com/go/longrunning v0.8.0/go.mod h1:UmErU2Onzi+fKDg2gR7dusz11Pe26aknR4kHmJJqIfk=
-cloud.google.com/go/monitoring v1.24.3 h1:dde+gMNc0UhPZD1Azu6at2e79bfdztVDS5lvhOdsgaE=
-cloud.google.com/go/monitoring v1.24.3/go.mod h1:nYP6W0tm3N9H/bOw8am7t62YTzZY+zUeQ+Bi6+2eonI=
-cloud.google.com/go/storage v1.59.1 h1:DXAZLcTimtiXdGqDSnebROVPd9QvRsFVVlptz02Wk58=
-cloud.google.com/go/storage v1.59.1/go.mod h1:cMWbtM+anpC74gn6qjLh+exqYcfmB9Hqe5z6adx+CLI=
-cloud.google.com/go/trace v1.11.7 h1:kDNDX8JkaAG3R2nq1lIdkb7FCSi1rCmsEtKVsty7p+U=
-cloud.google.com/go/trace v1.11.7/go.mod h1:TNn9d5V3fQVf6s4SCveVMIBS2LJUqo73GACmq/Tky0s=
-firebase.google.com/go/v4 v4.18.0 h1:S+g0P72oDGqOaG4wlLErX3zQmU9plVdu7j+Bc3R1qFw=
-firebase.google.com/go/v4 v4.18.0/go.mod h1:P7UfBpzc8+Z3MckX79+zsWzKVfpGryr6HLbAe7gCWfs=
+cloud.google.com/go/firestore v1.22.0 h1:avooeboIq37vKXobrbPUFhFBxS/c3FqmWoX0xs8dO6E=
+cloud.google.com/go/firestore v1.22.0/go.mod h1:PaM4i7i7ruALSKmlpHXXZaPObcZw0W7ie5UOPr72iTU=
+cloud.google.com/go/iam v1.11.0 h1:KieQ9Pb+LLPak1O3Rv3GgCxhnmkYf7Xyh0P5HfF1jFM=
+cloud.google.com/go/iam v1.11.0/go.mod h1:KP+nKGugNJW4LcLx1uEZcq1ok5sQHFaQehQNl4QDgV4=
+cloud.google.com/go/logging v1.18.0 h1:KhzZq+1cSkPH9YUaKLLhLtQxIHitVayBmk0sGfoM9+k=
+cloud.google.com/go/logging v1.18.0/go.mod h1:ZGKnpBaURITh+g/uom2VhbiFoFWvejcrHPDhxFtU/gI=
+cloud.google.com/go/longrunning v1.0.0 h1:lwzWEYD8+NkYV7dhexOz6kmlvajZA70+bW/xMhRVVdY=
+cloud.google.com/go/longrunning v1.0.0/go.mod h1:8nqFBPOO1U/XkhWl0I19AMZEphrHi73VNABIpKYaTwM=
+cloud.google.com/go/monitoring v1.29.0 h1:AHhDsFaSax1/4k+qlIDX/SDGe6hggnfXJ9dkgD9qBPY=
+cloud.google.com/go/monitoring v1.29.0/go.mod h1:72NOVjJXHY/HBfoLT0+qlCZBT059+9VXLeAnL2PeeVM=
+cloud.google.com/go/storage v1.62.3 h1:SZq1t23NCI+e96dH77Dg3PEfsNNEjqO8zE5AnD8gVD0=
+cloud.google.com/go/storage v1.62.3/go.mod h1:cpYz/kRVZ+UQAF1uHeea10/9ewcRbxGoGNKsS9daSXA=
+cloud.google.com/go/trace v1.16.0 h1:GmQovzFc5F0CNfl0VLgL64aoTtu7xsM0YajW2GlG9+E=
+cloud.google.com/go/trace v1.16.0/go.mod h1:r+bdAn16dKLSV1G2D5v3e58IlQlizfxWrUfjx7kM7X0=
+firebase.google.com/go/v4 v4.20.0 h1:ighpjeAC45rY/95cUQ+ojIKlKcTnz2YC0ldam56z2YU=
+firebase.google.com/go/v4 v4.20.0/go.mod h1:hqhkQtZkThGH42TnaYi7A8EFR1E0FEuB5oHvJ1Q57t8=
 github.com/AlekSi/pointer v1.2.0 h1:glcy/gc4h8HnG2Z3ZECSzZ1IX1x2JxRVuDzaJwQE0+w=
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@@ -58,20 +58,20 @@ github.com/emersion/go-sasl v0.0.0-20241020182733-b788ff22d5a6 h1:oP4q0fw+fOSWn3
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@@ -81,8 +81,8 @@ github.com/golang-jwt/jwt/v4 v4.4.2/go.mod h1:m21LjoU+eqJr34lmDMbreY2eSTRJ1cv77w
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@@ -96,14 +96,22 @@ github.com/google/s2a-go v0.1.9 h1:LGD7gtMgezd8a/Xak7mEWL0PjoTQFvpRudN895yqKW0=
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@@ -112,8 +120,8 @@ github.com/kr/text v0.2.0 h1:5Nx0Ya0ZqY2ygV366QzturHI13Jq95ApcVaJBhpS+AY=
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@@ -131,19 +139,20 @@ github.com/prometheus/client_golang v1.23.2 h1:Je96obch5RDVy3FDMndoUsjAhG5Edi49h
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 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
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@@ -156,36 +165,38 @@ github.com/xrash/smetrics v0.0.0-20250705151800-55b8f293f342/go.mod h1:Ohn+xnUBi
 github.com/yuin/goldmark v1.4.13/go.mod h1:6yULJ656Px+3vBD8DxQVa3kxgyrAnzto9xy5taEt/CY=
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 go.opentelemetry.io/auto/sdk v1.2.1/go.mod h1:KRTj+aOaElaLi+wW1kO/DZRXwkF4C5xPbEe3ZiIhN7Y=
-go.opentelemetry.io/contrib/detectors/gcp v1.39.0 h1:kWRNZMsfBHZ+uHjiH4y7Etn2FK26LAGkNFw7RHv1DhE=
-go.opentelemetry.io/contrib/detectors/gcp v1.39.0/go.mod h1:t/OGqzHBa5v6RHZwrDBJ2OirWc+4q/w2fTbLZwAKjTk=
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 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
 golang.org/x/crypto v0.0.0-20210921155107-089bfa567519/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc=
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 golang.org/x/crypto v0.19.0/go.mod h1:Iy9bg/ha4yyC70EfRS8jz+B6ybOBKMaSxLj6P6oBDfU=
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-golang.org/x/crypto v0.47.0 h1:V6e3FRj+n4dbpw86FJ8Fv7XVOql7TEwpHapKoMJ/GO8=
-golang.org/x/crypto v0.47.0/go.mod h1:ff3Y9VzzKbwSSEzWqJsJVBnWmRwRSHt/6Op5n9bQc4A=
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 golang.org/x/mod v0.6.0-dev.0.20220419223038-86c51ed26bb4/go.mod h1:jJ57K6gSWd91VN4djpZkiMVwK6gcyfeH4XE8wZrZaV4=
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 golang.org/x/mod v0.12.0/go.mod h1:iBbtSCu2XBx23ZKBPSOrRkjjQPZFPuis4dIYUhu/chs=
@@ -200,10 +211,10 @@ golang.org/x/net v0.10.0/go.mod h1:0qNGK6F8kojg2nk9dLZ2mShWaEBan6FAoqfSigmmuDg=
 golang.org/x/net v0.15.0/go.mod h1:idbUs1IY1+zTqbi8yxTbhexhEEk5ur9LInksu6HrEpk=
 golang.org/x/net v0.21.0/go.mod h1:bIjVDfnllIU7BJ2DNgfnXvpSvtn8VRwhlsaeUTyUS44=
 golang.org/x/net v0.25.0/go.mod h1:JkAGAh7GEvH74S6FOH42FLoXpXbE/aqXSrIQjXgsiwM=
-golang.org/x/net v0.49.0 h1:eeHFmOGUTtaaPSGNmjBKpbng9MulQsJURQUAfUwY++o=
-golang.org/x/net v0.49.0/go.mod h1:/ysNB2EvaqvesRkuLAyjI1ycPZlQHM3q01F02UY/MV8=
-golang.org/x/oauth2 v0.34.0 h1:hqK/t4AKgbqWkdkcAeI8XLmbK+4m4G5YeQRrmiotGlw=
-golang.org/x/oauth2 v0.34.0/go.mod h1:lzm5WQJQwKZ3nwavOZ3IS5Aulzxi68dUSgRHujetwEA=
+golang.org/x/net v0.56.0 h1:Rw8j/hFzGvJUZwNBXnAtf5sVDVt+65SK2C7IxCxZt5o=
+golang.org/x/net v0.56.0/go.mod h1:D3Ku6r+V6JROoZK144D2XfMHFcMq/0zSfLelVTCFKec=
+golang.org/x/oauth2 v0.36.0 h1:peZ/1z27fi9hUOFCAZaHyrpWG5lwe0RJEEEeH0ThlIs=
+golang.org/x/oauth2 v0.36.0/go.mod h1:YDBUJMTkDnJS+A4BP4eZBjCqtokkg1hODuPjwiGPO7Q=
 golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20220722155255-886fb9371eb4/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.1.0/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
@@ -211,8 +222,8 @@ golang.org/x/sync v0.3.0/go.mod h1:FU7BRWz2tNW+3quACPkgCx/L+uEAv1htQ0V83Z9Rj+Y=
 golang.org/x/sync v0.6.0/go.mod h1:Czt+wKu1gCyEFDUtn0jG5QVvpJ6rzVqr5aXyt9drQfk=
 golang.org/x/sync v0.7.0/go.mod h1:Czt+wKu1gCyEFDUtn0jG5QVvpJ6rzVqr5aXyt9drQfk=
 golang.org/x/sync v0.10.0/go.mod h1:Czt+wKu1gCyEFDUtn0jG5QVvpJ6rzVqr5aXyt9drQfk=
-golang.org/x/sync v0.19.0 h1:vV+1eWNmZ5geRlYjzm2adRgW2/mcpevXNg50YZtPCE4=
-golang.org/x/sync v0.19.0/go.mod h1:9KTHXmSnoGruLpwFjVSX0lNNA75CykiMECbovNTZqGI=
+golang.org/x/sync v0.21.0 h1:HLII4xRRTtCRkxYp4HNFF0Js/Og6q2i++KXbg0gHCwM=
+golang.org/x/sync v0.21.0/go.mod h1:9xrNwdLfx4jkKbNva9FpL6vEN7evnE43NNNJQ2LF3+0=
 golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210423082822-04245dca01da/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
@@ -225,8 +236,8 @@ golang.org/x/sys v0.12.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.17.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
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-golang.org/x/sys v0.40.0 h1:DBZZqJ2Rkml6QMQsZywtnjnnGvHza6BTfYFWY9kjEWQ=
-golang.org/x/sys v0.40.0/go.mod h1:OgkHotnGiDImocRcuBABYBEXf8A9a87e/uXjp9XT3ks=
+golang.org/x/sys v0.46.0 h1:noSf2Fq6F8DBgS+LysIkx7rIExoNHJsxOAtPp4rthXw=
+golang.org/x/sys v0.46.0/go.mod h1:4GL1E5IUh+htKOUEOaiffhrAeqysfVGipDYzABqnCmw=
 golang.org/x/telemetry v0.0.0-20240228155512-f48c80bd79b2/go.mod h1:TeRTkGYfJXctD9OcfyVLyj2J3IxLnKwHJR8f4D8a3YE=
 golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
 golang.org/x/term v0.0.0-20210927222741-03fcf44c2211/go.mod h1:jbD1KX2456YbFQfuXm/mYQcufACuNUgVhRMnK/tPxf8=
@@ -236,8 +247,8 @@ golang.org/x/term v0.12.0/go.mod h1:owVbMEjm3cBLCHdkQu9b1opXd4ETQWc3BhuQGKgXgvU=
 golang.org/x/term v0.17.0/go.mod h1:lLRBjIVuehSbZlaOtGMbcMncT+aqLLLmKrsjNrUguwk=
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 golang.org/x/term v0.27.0/go.mod h1:iMsnZpn0cago0GOrHO2+Y7u7JPn5AylBrcoWkElMTSM=
-golang.org/x/term v0.39.0 h1:RclSuaJf32jOqZz74CkPA9qFuVTX7vhLlpfj/IGWlqY=
-golang.org/x/term v0.39.0/go.mod h1:yxzUCTP/U+FzoxfdKmLaA0RV1WgE0VY7hXBwKtY/4ww=
+golang.org/x/term v0.44.0 h1:0rLvDRCtNj0gZkyIXhCyOb2OAzEhLVqc4B+hrsBhrmc=
+golang.org/x/term v0.44.0/go.mod h1:7ze4MdzUzLXpSAoFP1H0bOI9aXDqveSvatT5vKcFh2Y=
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@@ -249,10 +260,10 @@ golang.org/x/text v0.13.0/go.mod h1:TvPlkZtksWOMsz7fbANvkp4WM8x/WCo/om8BMLbz+aE=
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-golang.org/x/text v0.33.0 h1:B3njUFyqtHDUI5jMn1YIr5B0IE2U0qck04r6d4KPAxE=
-golang.org/x/text v0.33.0/go.mod h1:LuMebE6+rBincTi9+xWTY8TztLzKHc/9C1uBCG27+q8=
-golang.org/x/time v0.14.0 h1:MRx4UaLrDotUKUdCIqzPC48t1Y9hANFKIRpNx+Te8PI=
-golang.org/x/time v0.14.0/go.mod h1:eL/Oa2bBBK0TkX57Fyni+NgnyQQN4LitPmob2Hjnqw4=
+golang.org/x/text v0.38.0 h1:sXmwo9DwP3OK9EZ7PqAdaooSGozfl/3a6/xJcbzPRhE=
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 golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
 golang.org/x/tools v0.1.12/go.mod h1:hNGJHUnrk76NpqgfD5Aqm5Crs+Hm0VOH/i9J2+nxYbc=
@@ -261,20 +272,20 @@ golang.org/x/tools v0.13.0/go.mod h1:HvlwmtVNQAhOuCjW7xxvovg8wbNq7LwfXh/k7wXUl58
 golang.org/x/tools v0.21.1-0.20240508182429-e35e4ccd0d2d/go.mod h1:aiJjzUbINMkxbQROHiO6hDPo2LHcIPhhQsa9DLh0yGk=
 golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
-gonum.org/v1/gonum v0.16.0 h1:5+ul4Swaf3ESvrOnidPp4GZbzf0mxVQpDCYUQE7OJfk=
-gonum.org/v1/gonum v0.16.0/go.mod h1:fef3am4MQ93R2HHpKnLk4/Tbh/s0+wqD5nfa6Pnwy4E=
-google.golang.org/api v0.260.0 h1:XbNi5E6bOVEj/uLXQRlt6TKuEzMD7zvW/6tNwltE4P4=
-google.golang.org/api v0.260.0/go.mod h1:Shj1j0Phr/9sloYrKomICzdYgsSDImpTxME8rGLaZ/o=
+gonum.org/v1/gonum v0.17.0 h1:VbpOemQlsSMrYmn7T2OUvQ4dqxQXU+ouZFQsZOx50z4=
+gonum.org/v1/gonum v0.17.0/go.mod h1:El3tOrEuMpv2UdMrbNlKEh9vd86bmQ6vqIcDwxEOc1E=
+google.golang.org/api v0.286.0 h1:TdTXMvzYKnWV1/lPbCdbXRqBrkDqjPto22H2xeZZ8LI=
+google.golang.org/api v0.286.0/go.mod h1:NlOlUIr8MPoIhT9Bb/oUnRuHbJOLwxb6JSYJM8Yz+jQ=
 google.golang.org/appengine/v2 v2.0.6 h1:LvPZLGuchSBslPBp+LAhihBeGSiRh1myRoYK4NtuBIw=
 google.golang.org/appengine/v2 v2.0.6/go.mod h1:WoEXGoXNfa0mLvaH5sV3ZSGXwVmy8yf7Z1JKf3J3wLI=
-google.golang.org/genproto v0.0.0-20260114163908-3f89685c29c3 h1:rUamZFBwsWVWg4Yb7iTbwYp81XVHUvOXNdrFCoYRRNE=
-google.golang.org/genproto v0.0.0-20260114163908-3f89685c29c3/go.mod h1:wE6SUYr3iNtF/D0GxVAjT+0CbDFktQNssYs9PVptCt4=
-google.golang.org/genproto/googleapis/api v0.0.0-20260114163908-3f89685c29c3 h1:X9z6obt+cWRX8XjDVOn+SZWhWe5kZHm46TThU9j+jss=
-google.golang.org/genproto/googleapis/api v0.0.0-20260114163908-3f89685c29c3/go.mod h1:dd646eSK+Dk9kxVBl1nChEOhJPtMXriCcVb4x3o6J+E=
-google.golang.org/genproto/googleapis/rpc v0.0.0-20260114163908-3f89685c29c3 h1:C4WAdL+FbjnGlpp2S+HMVhBeCq2Lcib4xZqfPNF6OoQ=
-google.golang.org/genproto/googleapis/rpc v0.0.0-20260114163908-3f89685c29c3/go.mod h1:j9x/tPzZkyxcgEFkiKEEGxfvyumM01BEtsW8xzOahRQ=
-google.golang.org/grpc v1.78.0 h1:K1XZG/yGDJnzMdd/uZHAkVqJE+xIDOcmdSFZkBUicNc=
-google.golang.org/grpc v1.78.0/go.mod h1:I47qjTo4OKbMkjA/aOOwxDIiPSBofUtQUI5EfpWvW7U=
+google.golang.org/genproto v0.0.0-20260622175928-b703f567277d h1:CP5omUq8AJTiWMrPKM1WRLJ7zZeXd9OPcQD3TbBNAyY=
+google.golang.org/genproto v0.0.0-20260622175928-b703f567277d/go.mod h1:DrwuGJgFSEVNpv3S5Q5VxhRTvdnjauw9GtvwVOEARfA=
+google.golang.org/genproto/googleapis/api v0.0.0-20260622175928-b703f567277d h1:xr2lwHI91bn3UiXcnyzRMQjp2LRiM8wEHzwUaE0YhTs=
+google.golang.org/genproto/googleapis/api v0.0.0-20260622175928-b703f567277d/go.mod h1:O0ZOWSrfWfJ+Z5HbwZ+wNtHsg/vk1k2C/w67eww8PfQ=
+google.golang.org/genproto/googleapis/rpc v0.0.0-20260622175928-b703f567277d h1:mpAgMyM9vQHxycBlDq50y1VHpfSfVwzXvrQKtYbXuUY=
+google.golang.org/genproto/googleapis/rpc v0.0.0-20260622175928-b703f567277d/go.mod h1:4Hqkh8ycfw05ld/3BWL7rJOSfebL2Q+DVDeRgYgxUU8=
+google.golang.org/grpc v1.81.1 h1:VnnIIZ88UzOOKLukQi+ImGz8O1Wdp8nAGGnvOfEIWQQ=
+google.golang.org/grpc v1.81.1/go.mod h1:xGH9GfzOyMTGIOXBJmXt+BX/V0kcdQbdcuwQ/zNw42I=
 google.golang.org/protobuf v1.26.0-rc.1/go.mod h1:jlhhOSvTdKEhbULTjvd4ARK9grFBp09yW+WbY/TyQbw=
 google.golang.org/protobuf v1.30.0/go.mod h1:HV8QOd/L58Z+nl8r43ehVNZIU/HEI6OcFqwMG9pJV4I=
 google.golang.org/protobuf v1.36.11 h1:fV6ZwhNocDyBLK0dj+fg8ektcVegBBuEolpbTQyBNVE=

mail/format.go

@@ -1,82 +1,32 @@
-package server
+package mail
 
 import (
 	_ "embed" // required by go:embed
 	"encoding/json"
 	"fmt"
 	"mime"
-	"net"
-	"net/smtp"
 	"strings"
-	"sync"
 	"time"
 
-	"heckel.io/ntfy/v2/log"
+	"heckel.io/ntfy/v2/model"
 	"heckel.io/ntfy/v2/util"
 )
 
-type mailer interface {
-	Send(v *visitor, m *message, to string) error
-	Counts() (total int64, success int64, failure int64)
-}
+var (
+	//go:embed "mailer_emoji_map.json"
+	emojisJSON string
 
-type smtpSender struct {
-	config  *Config
-	success int64
-	failure int64
-	mu      sync.Mutex
-}
+	// emojiMap maps ntfy tag names to emoji, parsed once from the embedded JSON in init
+	emojiMap map[string]string
+)
 
-func (s *smtpSender) Send(v *visitor, m *message, to string) error {
-	return s.withCount(v, m, func() error {
-		host, _, err := net.SplitHostPort(s.config.SMTPSenderAddr)
-		if err != nil {
-			return err
-		}
-		message, err := formatMail(s.config.BaseURL, v.ip.String(), s.config.SMTPSenderFrom, to, m)
-		if err != nil {
-			return err
-		}
-		var auth smtp.Auth
-		if s.config.SMTPSenderUser != "" {
-			auth = smtp.PlainAuth("", s.config.SMTPSenderUser, s.config.SMTPSenderPass, host)
-		}
-		ev := logvm(v, m).
-			Tag(tagEmail).
-			Fields(log.Context{
-				"email_via":  s.config.SMTPSenderAddr,
-				"email_user": s.config.SMTPSenderUser,
-				"email_to":   to,
-			})
-		if ev.IsTrace() {
-			ev.Field("email_body", message).Trace("Sending email")
-		} else if ev.IsDebug() {
-			ev.Debug("Sending email")
-		}
-		return smtp.SendMail(s.config.SMTPSenderAddr, auth, s.config.SMTPSenderFrom, []string{to}, []byte(message))
-	})
-}
-
-func (s *smtpSender) Counts() (total int64, success int64, failure int64) {
-	s.mu.Lock()
-	defer s.mu.Unlock()
-	return s.success + s.failure, s.success, s.failure
-}
-
-func (s *smtpSender) withCount(v *visitor, m *message, fn func() error) error {
-	err := fn()
-	s.mu.Lock()
-	defer s.mu.Unlock()
-	if err != nil {
-		logvm(v, m).Err(err).Debug("Sending mail failed")
-		s.failure++
-	} else {
-		s.success++
+func init() {
+	if err := json.Unmarshal([]byte(emojisJSON), &emojiMap); err != nil {
+		panic("mail: invalid embedded emoji map: " + err.Error())
 	}
-	return err
 }
 
-func formatMail(baseURL, senderIP, from, to string, m *message) (string, error) {
+func formatMail(baseURL, senderIP, from, to string, m *model.Message) (string, error) {
 	topicURL := baseURL + "/" + m.Topic
 	subject := m.Title
 	if subject == "" {
@@ -86,10 +36,7 @@ func formatMail(baseURL, senderIP, from, to string, m *message) (string, error)
 	message := m.Message
 	trailer := ""
 	if len(m.Tags) > 0 {
-		emojis, tags, err := toEmojis(m.Tags)
-		if err != nil {
-			return "", err
-		}
+		emojis, tags := toEmojis(m.Tags)
 		if len(emojis) > 0 {
 			subject = strings.Join(emojis, " ") + " " + subject
 		}
@@ -134,16 +81,7 @@ This message was sent by {ip} at {time} via {topicURL}`
 	return body, nil
 }
 
-var (
-	//go:embed "mailer_emoji_map.json"
-	emojisJSON string
-)
-
-func toEmojis(tags []string) (emojisOut []string, tagsOut []string, err error) {
-	var emojiMap map[string]string
-	if err = json.Unmarshal([]byte(emojisJSON), &emojiMap); err != nil {
-		return nil, nil, err
-	}
+func toEmojis(tags []string) (emojisOut []string, tagsOut []string) {
 	tagsOut = make([]string, 0)
 	emojisOut = make([]string, 0)
 	for _, t := range tags {

mail/format_test.go

@@ -1,12 +1,14 @@
-package server
+package mail
 
 import (
-	"github.com/stretchr/testify/require"
 	"testing"
+
+	"github.com/stretchr/testify/require"
+	"heckel.io/ntfy/v2/model"
 )
 
 func TestFormatMail_Basic(t *testing.T) {
-	actual, _ := formatMail("https://ntfy.sh", "1.2.3.4", "ntfy@ntfy.sh", "phil@example.com", &message{
+	actual, _ := formatMail("https://ntfy.sh", "1.2.3.4", "ntfy@ntfy.sh", "phil@example.com", &model.Message{
 		ID:      "abc",
 		Time:    1640382204,
 		Event:   "message",
@@ -27,7 +29,7 @@ This message was sent by 1.2.3.4 at Fri, 24 Dec 2021 21:43:24 UTC via https://nt
 }
 
 func TestFormatMail_JustEmojis(t *testing.T) {
-	actual, _ := formatMail("https://ntfy.sh", "1.2.3.4", "ntfy@ntfy.sh", "phil@example.com", &message{
+	actual, _ := formatMail("https://ntfy.sh", "1.2.3.4", "ntfy@ntfy.sh", "phil@example.com", &model.Message{
 		ID:      "abc",
 		Time:    1640382204,
 		Event:   "message",
@@ -49,7 +51,7 @@ This message was sent by 1.2.3.4 at Fri, 24 Dec 2021 21:43:24 UTC via https://nt
 }
 
 func TestFormatMail_JustOtherTags(t *testing.T) {
-	actual, _ := formatMail("https://ntfy.sh", "1.2.3.4", "ntfy@ntfy.sh", "phil@example.com", &message{
+	actual, _ := formatMail("https://ntfy.sh", "1.2.3.4", "ntfy@ntfy.sh", "phil@example.com", &model.Message{
 		ID:      "abc",
 		Time:    1640382204,
 		Event:   "message",
@@ -73,7 +75,7 @@ This message was sent by 1.2.3.4 at Fri, 24 Dec 2021 21:43:24 UTC via https://nt
 }
 
 func TestFormatMail_JustPriority(t *testing.T) {
-	actual, _ := formatMail("https://ntfy.sh", "1.2.3.4", "ntfy@ntfy.sh", "phil@example.com", &message{
+	actual, _ := formatMail("https://ntfy.sh", "1.2.3.4", "ntfy@ntfy.sh", "phil@example.com", &model.Message{
 		ID:       "abc",
 		Time:     1640382204,
 		Event:    "message",
@@ -97,7 +99,7 @@ This message was sent by 1.2.3.4 at Fri, 24 Dec 2021 21:43:24 UTC via https://nt
 }
 
 func TestFormatMail_UTF8Subject(t *testing.T) {
-	actual, _ := formatMail("https://ntfy.sh", "1.2.3.4", "ntfy@ntfy.sh", "phil@example.com", &message{
+	actual, _ := formatMail("https://ntfy.sh", "1.2.3.4", "ntfy@ntfy.sh", "phil@example.com", &model.Message{
 		ID:      "abc",
 		Time:    1640382204,
 		Event:   "message",
@@ -119,7 +121,7 @@ This message was sent by 1.2.3.4 at Fri, 24 Dec 2021 21:43:24 UTC via https://nt
 }
 
 func TestFormatMail_WithAllTheThings(t *testing.T) {
-	actual, _ := formatMail("https://ntfy.sh", "1.2.3.4", "ntfy@ntfy.sh", "phil@example.com", &message{
+	actual, _ := formatMail("https://ntfy.sh", "1.2.3.4", "ntfy@ntfy.sh", "phil@example.com", &model.Message{
 		ID:       "abc",
 		Time:     1640382204,
 		Event:    "message",

mail/sender.go

@@ -0,0 +1,140 @@
+package mail
+
+import (
+	"fmt"
+	"mime"
+	"net"
+	"net/smtp"
+	"strings"
+	"sync"
+	"time"
+
+	"heckel.io/ntfy/v2/log"
+	"heckel.io/ntfy/v2/model"
+)
+
+const (
+	tagMail = "mail"
+
+	emailVerificationSubject = "Verify your email for ntfy"
+	passwordResetSubject     = "Reset your ntfy password"
+)
+
+// Config holds the SMTP configuration for the mail sender
+type Config struct {
+	BaseURL  string // ntfy base URL, used to build topic URLs in notification emails
+	SMTPAddr string // SMTP server address (host:port)
+	SMTPUser string // SMTP auth username
+	SMTPPass string // SMTP auth password
+	From     string // Sender email address
+}
+
+// Sender sends all of ntfy's outgoing email: notification emails (the email-on-publish feature)
+// as well as the magic-link emails for email verification and password reset. realSender is the
+// SMTP-backed implementation; tests inject a fake.
+type Sender interface {
+	SendNotification(to string, m *model.Message, senderIP string) error
+	NotificationCounts() (total int64, success int64, failure int64)
+	SendEmailVerification(to, link string) error
+	SendPasswordReset(to, link string) error
+}
+
+// realSender is the SMTP-backed implementation of Sender. Pending verification/reset state lives
+// in the database (see user.Manager), not in this struct.
+type realSender struct {
+	config  *Config
+	success int64
+	failure int64
+	mu      sync.Mutex
+}
+
+// NewSender creates a new mail Sender with the given SMTP config
+func NewSender(config *Config) Sender {
+	return &realSender{config: config}
+}
+
+// SendNotification formats a ntfy message into a notification email and sends it via SMTP. It
+// tracks success/failure counts, exposed via Counts (used for the server stats).
+func (s *realSender) SendNotification(to string, m *model.Message, senderIP string) error {
+	message, err := formatMail(s.config.BaseURL, senderIP, s.config.From, to, m)
+	if err != nil {
+		s.count(false)
+		return err
+	}
+	log.Tag(tagMail).Field("email_to", to).Debug("Sending notification email")
+	err = s.sendRaw(to, []byte(message))
+	s.count(err == nil)
+	return err
+}
+
+// NotificationCounts returns the number of notification emails sent, broken down into total, success and failure
+func (s *realSender) NotificationCounts() (total int64, success int64, failure int64) {
+	s.mu.Lock()
+	defer s.mu.Unlock()
+	return s.success + s.failure, s.success, s.failure
+}
+
+// SendEmailVerification sends an email containing a magic link to verify ownership of the
+// recipient address. The link carries a one-time token validated against the database.
+func (s *realSender) SendEmailVerification(to, link string) error {
+	body := fmt.Sprintf(`Click the link below to verify this email address for your ntfy account:
+
+%s
+
+This link expires in 24 hours. If you did not request this, you can safely ignore this email.`, link)
+	return s.send(to, emailVerificationSubject, body)
+}
+
+// SendPasswordReset sends an email containing a magic link to set a new password. The link
+// carries a one-time token validated against the database.
+func (s *realSender) SendPasswordReset(to, link string) error {
+	body := fmt.Sprintf(`Click the link below to set a new password for your ntfy account:
+
+%s
+
+This link expires in 1 hour. If you did not request this, you can safely ignore this email -- your password will not change.`, link)
+	return s.send(to, passwordResetSubject, body)
+}
+
+// send sends a plain text email via SMTP
+func (s *realSender) send(to, subject, body string) error {
+	date := time.Now().UTC().Format(time.RFC1123Z)
+	encodedSubject := mime.BEncoding.Encode("utf-8", subject)
+	message := `From: ntfy <{from}>
+To: {to}
+Date: {date}
+Subject: {subject}
+Content-Type: text/plain; charset="utf-8"
+
+{body}`
+	message = strings.ReplaceAll(message, "{from}", s.config.From)
+	message = strings.ReplaceAll(message, "{to}", to)
+	message = strings.ReplaceAll(message, "{date}", date)
+	message = strings.ReplaceAll(message, "{subject}", encodedSubject)
+	message = strings.ReplaceAll(message, "{body}", body)
+	log.Tag(tagMail).Field("email_to", to).Debug("Sending email")
+	return s.sendRaw(to, []byte(message))
+}
+
+// sendRaw sends a raw email message via SMTP
+func (s *realSender) sendRaw(to string, message []byte) error {
+	host, _, err := net.SplitHostPort(s.config.SMTPAddr)
+	if err != nil {
+		return err
+	}
+	var auth smtp.Auth
+	if s.config.SMTPUser != "" {
+		auth = smtp.PlainAuth("", s.config.SMTPUser, s.config.SMTPPass, host)
+	}
+	return smtp.SendMail(s.config.SMTPAddr, auth, s.config.From, []string{to}, message)
+}
+
+func (s *realSender) count(ok bool) {
+	s.mu.Lock()
+	defer s.mu.Unlock()
+	if ok {
+		s.success++
+	} else {
+		s.failure++
+	}
+}

message/cache.go

@@ -0,0 +1,566 @@
+package message
+
+import (
+	"database/sql"
+	"encoding/json"
+	"errors"
+	"net/netip"
+	"strings"
+	"sync"
+	"time"
+
+	"heckel.io/ntfy/v2/db"
+	"heckel.io/ntfy/v2/log"
+	"heckel.io/ntfy/v2/model"
+	"heckel.io/ntfy/v2/util"
+)
+
+const (
+	tagMessageCache = "message_cache"
+)
+
+var errNoRows = errors.New("no rows found")
+
+// queries holds the database-specific SQL queries
+type queries struct {
+	insertMessage                    string
+	selectScheduledMessageIDsBySeqID string
+	deleteScheduledBySequenceID      string
+	updateMessagesForTopicExpiry     string
+	selectMessagesByID               string
+	selectMessagesSinceTime          string
+	selectMessagesSinceTimeScheduled string
+	selectMessagesSinceID            string
+	selectMessagesSinceIDScheduled   string
+	selectMessagesLatest             string
+	selectMessagesDue                string
+	deleteExpiredMessages            string
+	updateMessagePublished           string
+	selectMessagesCount              string
+	selectTopics                     string
+	markExpiredAttachmentsDeleted    string
+	selectAttachmentsSizeBySender    string
+	selectAttachmentsSizeByUserID    string
+	selectAttachmentsWithSizes       string
+	selectStats                      string
+	updateStats                      string
+	updateMessageTime                string
+}
+
+// Cache stores published messages
+type Cache struct {
+	db      *db.DB
+	queue   *util.BatchingQueue[*model.Message]
+	nop     bool
+	mu      *sync.Mutex // nil for PostgreSQL (concurrent writes supported), set for SQLite (single writer)
+	queries queries
+}
+
+func newCache(db *db.DB, queries queries, mu *sync.Mutex, batchSize int, batchTimeout time.Duration, nop bool) *Cache {
+	var queue *util.BatchingQueue[*model.Message]
+	if batchSize > 0 || batchTimeout > 0 {
+		queue = util.NewBatchingQueue[*model.Message](batchSize, batchTimeout)
+	}
+	c := &Cache{
+		db:      db,
+		queue:   queue,
+		nop:     nop,
+		mu:      mu,
+		queries: queries,
+	}
+	go c.processMessageBatches()
+	return c
+}
+
+func (c *Cache) maybeLock() {
+	if c.mu != nil {
+		c.mu.Lock()
+	}
+}
+
+func (c *Cache) maybeUnlock() {
+	if c.mu != nil {
+		c.mu.Unlock()
+	}
+}
+
+// AddMessage stores a message to the message cache synchronously, or queues it to be stored at a later date asynchronously.
+// The message is queued only if "batchSize" or "batchTimeout" are passed to the constructor.
+func (c *Cache) AddMessage(m *model.Message) error {
+	if c.queue != nil {
+		c.queue.Enqueue(m)
+		return nil
+	}
+	return c.addMessages([]*model.Message{m})
+}
+
+// AddMessages synchronously stores a batch of messages to the message cache
+func (c *Cache) AddMessages(ms []*model.Message) error {
+	return c.addMessages(ms)
+}
+
+func (c *Cache) addMessages(ms []*model.Message) error {
+	c.maybeLock()
+	defer c.maybeUnlock()
+	if c.nop {
+		return nil
+	}
+	if len(ms) == 0 {
+		return nil
+	}
+	start := time.Now()
+	tx, err := c.db.Begin()
+	if err != nil {
+		return err
+	}
+	defer tx.Rollback()
+	stmt, err := tx.Prepare(c.queries.insertMessage)
+	if err != nil {
+		return err
+	}
+	defer stmt.Close()
+	for _, m := range ms {
+		if m.Event != model.MessageEvent && m.Event != model.MessageDeleteEvent && m.Event != model.MessageClearEvent {
+			return model.ErrUnexpectedMessageType
+		}
+		published := m.Time <= time.Now().Unix()
+		tags := util.SanitizeUTF8(strings.Join(m.Tags, ","))
+		var attachmentName, attachmentType, attachmentURL string
+		var attachmentSize, attachmentExpires int64
+		var attachmentDeleted bool
+		if m.Attachment != nil {
+			attachmentName = util.SanitizeUTF8(m.Attachment.Name)
+			attachmentType = util.SanitizeUTF8(m.Attachment.Type)
+			attachmentSize = m.Attachment.Size
+			attachmentExpires = m.Attachment.Expires
+			attachmentURL = util.SanitizeUTF8(m.Attachment.URL)
+		}
+		var actionsStr string
+		if len(m.Actions) > 0 {
+			actionsBytes, err := json.Marshal(m.Actions)
+			if err != nil {
+				return err
+			}
+			actionsStr = string(actionsBytes)
+		}
+		var sender string
+		if m.Sender.IsValid() {
+			sender = m.Sender.String()
+		}
+		_, err := stmt.Exec(
+			m.ID,
+			m.SequenceID,
+			m.Time,
+			m.Event,
+			m.Expires,
+			util.SanitizeUTF8(m.Topic),
+			util.SanitizeUTF8(m.Message),
+			util.SanitizeUTF8(m.Title),
+			m.Priority,
+			tags,
+			util.SanitizeUTF8(m.Click),
+			util.SanitizeUTF8(m.Icon),
+			actionsStr,
+			attachmentName,
+			attachmentType,
+			attachmentSize,
+			attachmentExpires,
+			attachmentURL,
+			attachmentDeleted, // Always zero
+			sender,
+			m.User,
+			util.SanitizeUTF8(m.ContentType),
+			m.Encoding,
+			published,
+		)
+		if err != nil {
+			return err
+		}
+	}
+	if err := tx.Commit(); err != nil {
+		log.Tag(tagMessageCache).Err(err).Error("Writing %d message(s) failed (took %v)", len(ms), time.Since(start))
+		return err
+	}
+	log.Tag(tagMessageCache).Debug("Wrote %d message(s) in %v", len(ms), time.Since(start))
+	return nil
+}
+
+// Messages returns messages for a topic since the given marker, optionally including scheduled messages
+func (c *Cache) Messages(topic string, since model.SinceMarker, scheduled bool) ([]*model.Message, error) {
+	if since.IsNone() {
+		return make([]*model.Message, 0), nil
+	} else if since.IsLatest() {
+		return c.messagesLatest(topic)
+	} else if since.IsID() {
+		return c.messagesSinceID(topic, since, scheduled)
+	}
+	return c.messagesSinceTime(topic, since, scheduled)
+}
+
+func (c *Cache) messagesSinceTime(topic string, since model.SinceMarker, scheduled bool) ([]*model.Message, error) {
+	var rows *sql.Rows
+	var err error
+	rdb := c.db.ReadOnly()
+	if scheduled {
+		rows, err = rdb.Query(c.queries.selectMessagesSinceTimeScheduled, topic, since.Time().Unix())
+	} else {
+		rows, err = rdb.Query(c.queries.selectMessagesSinceTime, topic, since.Time().Unix())
+	}
+	if err != nil {
+		return nil, err
+	}
+	return readMessages(rows)
+}
+
+func (c *Cache) messagesSinceID(topic string, since model.SinceMarker, scheduled bool) ([]*model.Message, error) {
+	var rows *sql.Rows
+	var err error
+	rdb := c.db.ReadOnly()
+	if scheduled {
+		rows, err = rdb.Query(c.queries.selectMessagesSinceIDScheduled, topic, since.ID())
+	} else {
+		rows, err = rdb.Query(c.queries.selectMessagesSinceID, topic, since.ID())
+	}
+	if err != nil {
+		return nil, err
+	}
+	return readMessages(rows)
+}
+
+func (c *Cache) messagesLatest(topic string) ([]*model.Message, error) {
+	rows, err := c.db.ReadOnly().Query(c.queries.selectMessagesLatest, topic)
+	if err != nil {
+		return nil, err
+	}
+	return readMessages(rows)
+}
+
+// MessagesDue returns all messages that are due for publishing
+func (c *Cache) MessagesDue() ([]*model.Message, error) {
+	rows, err := c.db.Query(c.queries.selectMessagesDue, time.Now().Unix())
+	if err != nil {
+		return nil, err
+	}
+	return readMessages(rows)
+}
+
+// DeleteExpiredMessages deletes up to `limit` expired messages in a single query
+// and returns the number of deleted rows.
+func (c *Cache) DeleteExpiredMessages(limit int) (int64, error) {
+	c.maybeLock()
+	defer c.maybeUnlock()
+	result, err := c.db.Exec(c.queries.deleteExpiredMessages, time.Now().Unix(), limit)
+	if err != nil {
+		return 0, err
+	}
+	return result.RowsAffected()
+}
+
+// Message returns the message with the given ID, or ErrMessageNotFound if not found
+func (c *Cache) Message(id string) (*model.Message, error) {
+	rows, err := c.db.ReadOnly().Query(c.queries.selectMessagesByID, id)
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+	if !rows.Next() {
+		return nil, model.ErrMessageNotFound
+	}
+	return readMessage(rows)
+}
+
+// UpdateMessageTime updates the time column for a message by ID. This is only used for testing.
+func (c *Cache) UpdateMessageTime(messageID string, timestamp int64) error {
+	c.maybeLock()
+	defer c.maybeUnlock()
+	_, err := c.db.Exec(c.queries.updateMessageTime, timestamp, messageID)
+	return err
+}
+
+// MarkPublished marks a message as published
+func (c *Cache) MarkPublished(m *model.Message) error {
+	c.maybeLock()
+	defer c.maybeUnlock()
+	_, err := c.db.Exec(c.queries.updateMessagePublished, m.ID)
+	return err
+}
+
+// MessagesCount returns the total number of messages in the cache
+func (c *Cache) MessagesCount() (int, error) {
+	rows, err := c.db.ReadOnly().Query(c.queries.selectMessagesCount)
+	if err != nil {
+		return 0, err
+	}
+	defer rows.Close()
+	if !rows.Next() {
+		return 0, errNoRows
+	}
+	var count int
+	if err := rows.Scan(&count); err != nil {
+		return 0, err
+	}
+	return count, nil
+}
+
+// Topics returns a list of all topics with messages in the cache
+func (c *Cache) Topics() ([]string, error) {
+	rows, err := c.db.ReadOnly().Query(c.queries.selectTopics)
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+	return readStrings(rows)
+}
+
+// DeleteScheduledBySequenceID deletes unpublished (scheduled) messages with the given topic and sequence ID.
+// It returns the message IDs of the deleted messages, which can be used to clean up attachment files.
+func (c *Cache) DeleteScheduledBySequenceID(topic, sequenceID string) ([]string, error) {
+	c.maybeLock()
+	defer c.maybeUnlock()
+	return db.QueryTx(c.db, func(tx *sql.Tx) ([]string, error) {
+		rows, err := tx.Query(c.queries.selectScheduledMessageIDsBySeqID, topic, sequenceID)
+		if err != nil {
+			return nil, err
+		}
+		defer rows.Close()
+		ids, err := readStrings(rows)
+		if err != nil {
+			return nil, err
+		}
+		rows.Close() // Close rows before executing delete in same transaction
+		if _, err := tx.Exec(c.queries.deleteScheduledBySequenceID, topic, sequenceID); err != nil {
+			return nil, err
+		}
+		return ids, nil
+	})
+}
+
+// ExpireMessages marks messages in the given topics as expired
+func (c *Cache) ExpireMessages(topics ...string) error {
+	c.maybeLock()
+	defer c.maybeUnlock()
+	return db.ExecTx(c.db, func(tx *sql.Tx) error {
+		for _, t := range topics {
+			if _, err := tx.Exec(c.queries.updateMessagesForTopicExpiry, time.Now().Unix()-1, t); err != nil {
+				return err
+			}
+		}
+		return nil
+	})
+}
+
+// MarkExpiredAttachmentsDeleted marks up to `limit` expired attachments as deleted in a single
+// query and returns the number of updated rows.
+func (c *Cache) MarkExpiredAttachmentsDeleted(limit int) (int64, error) {
+	c.maybeLock()
+	defer c.maybeUnlock()
+	result, err := c.db.Exec(c.queries.markExpiredAttachmentsDeleted, time.Now().Unix(), limit)
+	if err != nil {
+		return 0, err
+	}
+	return result.RowsAffected()
+}
+
+// AttachmentBytesUsedBySender returns the total size of active attachments sent by the given sender
+func (c *Cache) AttachmentBytesUsedBySender(sender string) (int64, error) {
+	rows, err := c.db.ReadOnly().Query(c.queries.selectAttachmentsSizeBySender, sender, time.Now().Unix())
+	if err != nil {
+		return 0, err
+	}
+	return c.readAttachmentBytesUsed(rows)
+}
+
+// AttachmentBytesUsedByUser returns the total size of active attachments for the given user
+func (c *Cache) AttachmentBytesUsedByUser(userID string) (int64, error) {
+	rows, err := c.db.ReadOnly().Query(c.queries.selectAttachmentsSizeByUserID, userID, time.Now().Unix())
+	if err != nil {
+		return 0, err
+	}
+	return c.readAttachmentBytesUsed(rows)
+}
+
+// AttachmentsWithSizes returns a map of message ID to attachment size for all active
+// (non-expired, non-deleted) attachments. This is used to hydrate the attachment store's
+// size tracking on startup and during periodic sync.
+func (c *Cache) AttachmentsWithSizes() (map[string]int64, error) {
+	rows, err := c.db.ReadOnly().Query(c.queries.selectAttachmentsWithSizes, time.Now().Unix())
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+	attachments := make(map[string]int64)
+	for rows.Next() {
+		var id string
+		var size int64
+		if err := rows.Scan(&id, &size); err != nil {
+			return nil, err
+		}
+		attachments[id] = size
+	}
+	if err := rows.Err(); err != nil {
+		return nil, err
+	}
+	return attachments, nil
+}
+
+func (c *Cache) readAttachmentBytesUsed(rows *sql.Rows) (int64, error) {
+	defer rows.Close()
+	var size int64
+	if !rows.Next() {
+		return 0, errors.New("no rows found")
+	}
+	if err := rows.Scan(&size); err != nil {
+		return 0, err
+	} else if err := rows.Err(); err != nil {
+		return 0, err
+	}
+	return size, nil
+}
+
+// UpdateStats updates the total message count statistic
+func (c *Cache) UpdateStats(messages int64) error {
+	c.maybeLock()
+	defer c.maybeUnlock()
+	_, err := c.db.Exec(c.queries.updateStats, messages)
+	return err
+}
+
+// Stats returns the total message count statistic
+func (c *Cache) Stats() (messages int64, err error) {
+	rows, err := c.db.ReadOnly().Query(c.queries.selectStats)
+	if err != nil {
+		return 0, err
+	}
+	defer rows.Close()
+	if !rows.Next() {
+		return 0, errNoRows
+	}
+	if err := rows.Scan(&messages); err != nil {
+		return 0, err
+	}
+	return messages, nil
+}
+
+// Close closes the underlying database connection
+func (c *Cache) Close() error {
+	return c.db.Close()
+}
+
+func (c *Cache) processMessageBatches() {
+	if c.queue == nil {
+		return
+	}
+	for messages := range c.queue.Dequeue() {
+		if err := c.addMessages(messages); err != nil {
+			log.Tag(tagMessageCache).Err(err).Error("Cannot write message batch")
+		}
+	}
+}
+
+func readMessages(rows *sql.Rows) ([]*model.Message, error) {
+	defer rows.Close()
+	messages := make([]*model.Message, 0)
+	for rows.Next() {
+		m, err := readMessage(rows)
+		if err != nil {
+			return nil, err
+		}
+		messages = append(messages, m)
+	}
+	if err := rows.Err(); err != nil {
+		return nil, err
+	}
+	return messages, nil
+}
+
+func readMessage(rows *sql.Rows) (*model.Message, error) {
+	var timestamp, expires, attachmentSize, attachmentExpires int64
+	var priority int
+	var id, sequenceID, event, topic, msg, title, tagsStr, click, icon, actionsStr, attachmentName, attachmentType, attachmentURL, sender, user, contentType, encoding string
+	err := rows.Scan(
+		&id,
+		&sequenceID,
+		&timestamp,
+		&event,
+		&expires,
+		&topic,
+		&msg,
+		&title,
+		&priority,
+		&tagsStr,
+		&click,
+		&icon,
+		&actionsStr,
+		&attachmentName,
+		&attachmentType,
+		&attachmentSize,
+		&attachmentExpires,
+		&attachmentURL,
+		&sender,
+		&user,
+		&contentType,
+		&encoding,
+	)
+	if err != nil {
+		return nil, err
+	}
+	var tags []string
+	if tagsStr != "" {
+		tags = strings.Split(tagsStr, ",")
+	}
+	var actions []*model.Action
+	if actionsStr != "" {
+		if err := json.Unmarshal([]byte(actionsStr), &actions); err != nil {
+			return nil, err
+		}
+	}
+	senderIP, err := netip.ParseAddr(sender)
+	if err != nil {
+		senderIP = netip.Addr{} // if no IP stored in database, return invalid address
+	}
+	var att *model.Attachment
+	if attachmentName != "" && attachmentURL != "" {
+		att = &model.Attachment{
+			Name:    attachmentName,
+			Type:    attachmentType,
+			Size:    attachmentSize,
+			Expires: attachmentExpires,
+			URL:     attachmentURL,
+		}
+	}
+	return &model.Message{
+		ID:          id,
+		SequenceID:  sequenceID,
+		Time:        timestamp,
+		Expires:     expires,
+		Event:       event,
+		Topic:       topic,
+		Message:     msg,
+		Title:       title,
+		Priority:    priority,
+		Tags:        tags,
+		Click:       click,
+		Icon:        icon,
+		Actions:     actions,
+		Attachment:  att,
+		Sender:      senderIP,
+		User:        user,
+		ContentType: contentType,
+		Encoding:    encoding,
+	}, nil
+}
+
+func readStrings(rows *sql.Rows) ([]string, error) {
+	strs := make([]string, 0)
+	for rows.Next() {
+		var s string
+		if err := rows.Scan(&s); err != nil {
+			return nil, err
+		}
+		strs = append(strs, s)
+	}
+	if err := rows.Err(); err != nil {
+		return nil, err
+	}
+	return strs, nil
+}

message/cache_postgres.go

@@ -0,0 +1,109 @@
+package message
+
+import (
+	"time"
+
+	"heckel.io/ntfy/v2/db"
+)
+
+// PostgreSQL runtime query constants
+const (
+	postgresInsertMessageQuery = `
+		INSERT INTO message (mid, sequence_id, time, event, expires, topic, message, title, priority, tags, click, icon, actions, attachment_name, attachment_type, attachment_size, attachment_expires, attachment_url, attachment_deleted, sender, user_id, content_type, encoding, published)
+		VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10, $11, $12, $13, $14, $15, $16, $17, $18, $19, $20, $21, $22, $23, $24)
+	`
+	postgresSelectScheduledMessageIDsBySeqIDQuery = `SELECT mid FROM message WHERE topic = $1 AND sequence_id = $2 AND published = FALSE`
+	postgresDeleteScheduledBySequenceIDQuery      = `DELETE FROM message WHERE topic = $1 AND sequence_id = $2 AND published = FALSE`
+	postgresUpdateMessagesForTopicExpiryQuery     = `UPDATE message SET expires = $1 WHERE topic = $2`
+	postgresSelectMessagesByIDQuery               = `
+		SELECT mid, sequence_id, time, event, expires, topic, message, title, priority, tags, click, icon, actions, attachment_name, attachment_type, attachment_size, attachment_expires, attachment_url, sender, user_id, content_type, encoding
+		FROM message
+		WHERE mid = $1
+	`
+	postgresSelectMessagesSinceTimeQuery = `
+		SELECT mid, sequence_id, time, event, expires, topic, message, title, priority, tags, click, icon, actions, attachment_name, attachment_type, attachment_size, attachment_expires, attachment_url, sender, user_id, content_type, encoding
+		FROM message
+		WHERE topic = $1 AND time >= $2 AND published = TRUE
+		ORDER BY time, id
+	`
+	postgresSelectMessagesSinceTimeIncludeScheduledQuery = `
+		SELECT mid, sequence_id, time, event, expires, topic, message, title, priority, tags, click, icon, actions, attachment_name, attachment_type, attachment_size, attachment_expires, attachment_url, sender, user_id, content_type, encoding
+		FROM message
+		WHERE topic = $1 AND time >= $2
+		ORDER BY time, id
+	`
+	postgresSelectMessagesSinceIDQuery = `
+		SELECT mid, sequence_id, time, event, expires, topic, message, title, priority, tags, click, icon, actions, attachment_name, attachment_type, attachment_size, attachment_expires, attachment_url, sender, user_id, content_type, encoding
+		FROM message
+		WHERE topic = $1
+		  AND id > COALESCE((SELECT id FROM message WHERE mid = $2), 0)
+		  AND published = TRUE
+		ORDER BY time, id
+	`
+	postgresSelectMessagesSinceIDIncludeScheduledQuery = `
+		SELECT mid, sequence_id, time, event, expires, topic, message, title, priority, tags, click, icon, actions, attachment_name, attachment_type, attachment_size, attachment_expires, attachment_url, sender, user_id, content_type, encoding
+		FROM message
+		WHERE topic = $1
+		  AND (id > COALESCE((SELECT id FROM message WHERE mid = $2), 0) OR published = FALSE)
+		ORDER BY time, id
+	`
+	postgresSelectMessagesLatestQuery = `
+		SELECT mid, sequence_id, time, event, expires, topic, message, title, priority, tags, click, icon, actions, attachment_name, attachment_type, attachment_size, attachment_expires, attachment_url, sender, user_id, content_type, encoding
+		FROM message
+		WHERE topic = $1 AND published = TRUE
+		ORDER BY time DESC, id DESC
+		LIMIT 1
+	`
+	postgresSelectMessagesDueQuery = `
+		SELECT mid, sequence_id, time, event, expires, topic, message, title, priority, tags, click, icon, actions, attachment_name, attachment_type, attachment_size, attachment_expires, attachment_url, sender, user_id, content_type, encoding
+		FROM message
+		WHERE time <= $1 AND published = FALSE
+		ORDER BY time, id
+	`
+	postgresUpdateMessagePublishedQuery = `UPDATE message SET published = TRUE WHERE mid = $1`
+	postgresSelectMessagesCountQuery    = `SELECT COUNT(*) FROM message`
+	postgresSelectTopicsQuery           = `SELECT topic FROM message GROUP BY topic`
+
+	postgresDeleteExpiredMessagesQuery         = `DELETE FROM message WHERE mid IN (SELECT mid FROM message WHERE expires <= $1 AND published = TRUE LIMIT $2)`
+	postgresMarkExpiredAttachmentsDeletedQuery = `UPDATE message SET attachment_deleted = TRUE WHERE mid IN (SELECT mid FROM message WHERE attachment_expires > 0 AND attachment_expires <= $1 AND attachment_deleted = FALSE LIMIT $2)`
+	postgresSelectAttachmentsSizeBySenderQuery = `SELECT COALESCE(SUM(attachment_size), 0) FROM message WHERE user_id = '' AND sender = $1 AND attachment_expires >= $2`
+	postgresSelectAttachmentsSizeByUserIDQuery = `SELECT COALESCE(SUM(attachment_size), 0) FROM message WHERE user_id = $1 AND attachment_expires >= $2`
+	postgresSelectAttachmentsWithSizesQuery    = `SELECT mid, attachment_size FROM message WHERE attachment_expires > $1 AND attachment_deleted = FALSE`
+
+	postgresSelectStatsQuery       = `SELECT value FROM message_stats WHERE key = 'messages'`
+	postgresUpdateStatsQuery       = `UPDATE message_stats SET value = $1 WHERE key = 'messages'`
+	postgresUpdateMessageTimeQuery = `UPDATE message SET time = $1 WHERE mid = $2`
+)
+
+var postgresQueries = queries{
+	insertMessage:                    postgresInsertMessageQuery,
+	selectScheduledMessageIDsBySeqID: postgresSelectScheduledMessageIDsBySeqIDQuery,
+	deleteScheduledBySequenceID:      postgresDeleteScheduledBySequenceIDQuery,
+	updateMessagesForTopicExpiry:     postgresUpdateMessagesForTopicExpiryQuery,
+	selectMessagesByID:               postgresSelectMessagesByIDQuery,
+	selectMessagesSinceTime:          postgresSelectMessagesSinceTimeQuery,
+	selectMessagesSinceTimeScheduled: postgresSelectMessagesSinceTimeIncludeScheduledQuery,
+	selectMessagesSinceID:            postgresSelectMessagesSinceIDQuery,
+	selectMessagesSinceIDScheduled:   postgresSelectMessagesSinceIDIncludeScheduledQuery,
+	selectMessagesLatest:             postgresSelectMessagesLatestQuery,
+	selectMessagesDue:                postgresSelectMessagesDueQuery,
+	deleteExpiredMessages:            postgresDeleteExpiredMessagesQuery,
+	updateMessagePublished:           postgresUpdateMessagePublishedQuery,
+	selectMessagesCount:              postgresSelectMessagesCountQuery,
+	selectTopics:                     postgresSelectTopicsQuery,
+	markExpiredAttachmentsDeleted:    postgresMarkExpiredAttachmentsDeletedQuery,
+	selectAttachmentsSizeBySender:    postgresSelectAttachmentsSizeBySenderQuery,
+	selectAttachmentsSizeByUserID:    postgresSelectAttachmentsSizeByUserIDQuery,
+	selectAttachmentsWithSizes:       postgresSelectAttachmentsWithSizesQuery,
+	selectStats:                      postgresSelectStatsQuery,
+	updateStats:                      postgresUpdateStatsQuery,
+	updateMessageTime:                postgresUpdateMessageTimeQuery,
+}
+
+// NewPostgresStore creates a new PostgreSQL-backed message cache store using an existing database connection pool.
+func NewPostgresStore(d *db.DB, batchSize int, batchTimeout time.Duration) (*Cache, error) {
+	if err := setupPostgres(d.Primary()); err != nil {
+		return nil, err
+	}
+	return newCache(d, postgresQueries, nil, batchSize, batchTimeout, false), nil
+}

message/cache_postgres_schema.go

@@ -0,0 +1,123 @@
+package message
+
+import (
+	"database/sql"
+	"fmt"
+
+	"heckel.io/ntfy/v2/db"
+	"heckel.io/ntfy/v2/log"
+)
+
+// Initial PostgreSQL schema
+const (
+	postgresCreateTablesQuery = `
+		CREATE TABLE IF NOT EXISTS message (
+			id BIGSERIAL PRIMARY KEY,
+			mid TEXT NOT NULL,
+			sequence_id TEXT NOT NULL,
+			time BIGINT NOT NULL,
+			event TEXT NOT NULL,
+			expires BIGINT NOT NULL,
+			topic TEXT NOT NULL,
+			message TEXT NOT NULL,
+			title TEXT NOT NULL,
+			priority INT NOT NULL,
+			tags TEXT NOT NULL,
+			click TEXT NOT NULL,
+			icon TEXT NOT NULL,
+			actions TEXT NOT NULL,
+			attachment_name TEXT NOT NULL,
+			attachment_type TEXT NOT NULL,
+			attachment_size BIGINT NOT NULL,
+			attachment_expires BIGINT NOT NULL,
+			attachment_url TEXT NOT NULL,
+			attachment_deleted BOOLEAN NOT NULL DEFAULT FALSE,
+			sender TEXT NOT NULL,
+			user_id TEXT NOT NULL,
+			content_type TEXT NOT NULL,
+			encoding TEXT NOT NULL,
+			published BOOLEAN NOT NULL DEFAULT FALSE
+		);
+		CREATE INDEX IF NOT EXISTS idx_message_mid ON message (mid);
+		CREATE INDEX IF NOT EXISTS idx_message_sequence_id ON message (sequence_id);
+		CREATE INDEX IF NOT EXISTS idx_message_topic_published_time ON message (topic, published, time, id);
+		CREATE INDEX IF NOT EXISTS idx_message_published_expires ON message (published, expires);
+		CREATE INDEX IF NOT EXISTS idx_message_attachment_expires ON message (attachment_expires) WHERE attachment_deleted = FALSE;
+		CREATE INDEX IF NOT EXISTS idx_message_sender_attachment_expires ON message (sender, attachment_expires) WHERE user_id = '';
+		CREATE INDEX IF NOT EXISTS idx_message_user_id_attachment_expires ON message (user_id, attachment_expires);
+		CREATE TABLE IF NOT EXISTS message_stats (
+			key TEXT PRIMARY KEY,
+			value BIGINT
+		);
+		INSERT INTO message_stats (key, value) VALUES ('messages', 0);
+		CREATE TABLE IF NOT EXISTS schema_version (
+			store TEXT PRIMARY KEY,
+			version INT NOT NULL
+		);
+	`
+)
+
+// PostgreSQL schema management queries
+const (
+	postgresCurrentSchemaVersion     = 15
+	postgresInsertSchemaVersionQuery = `INSERT INTO schema_version (store, version) VALUES ('message', $1)`
+	postgresUpdateSchemaVersionQuery = `UPDATE schema_version SET version = $1 WHERE store = 'message'`
+	postgresSelectSchemaVersionQuery = `SELECT version FROM schema_version WHERE store = 'message'`
+)
+
+// PostgreSQL schema migrations
+const (
+	// 14 -> 15
+	postgresMigrate14To15CreateIndexQuery = `
+		CREATE INDEX IF NOT EXISTS idx_message_attachment_expires ON message (attachment_expires) WHERE attachment_deleted = FALSE;
+	`
+)
+
+var postgresMigrations = map[int]func(d *sql.DB) error{
+	14: postgresMigrateFrom14,
+}
+
+func setupPostgres(d *sql.DB) error {
+	var schemaVersion int
+	if err := d.QueryRow(postgresSelectSchemaVersionQuery).Scan(&schemaVersion); err != nil {
+		return setupNewPostgresDB(d)
+	} else if schemaVersion == postgresCurrentSchemaVersion {
+		return nil
+	} else if schemaVersion > postgresCurrentSchemaVersion {
+		return fmt.Errorf("unexpected schema version: version %d is higher than current version %d", schemaVersion, postgresCurrentSchemaVersion)
+	}
+	for i := schemaVersion; i < postgresCurrentSchemaVersion; i++ {
+		fn, ok := postgresMigrations[i]
+		if !ok {
+			return fmt.Errorf("cannot find migration step from schema version %d to %d", i, i+1)
+		} else if err := fn(d); err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+func postgresMigrateFrom14(d *sql.DB) error {
+	log.Tag(tagMessageCache).Info("Migrating message cache database schema: from 14 to 15")
+	return db.ExecTx(d, func(tx *sql.Tx) error {
+		if _, err := tx.Exec(postgresMigrate14To15CreateIndexQuery); err != nil {
+			return err
+		}
+		if _, err := tx.Exec(postgresUpdateSchemaVersionQuery, 15); err != nil {
+			return err
+		}
+		return nil
+	})
+}
+
+func setupNewPostgresDB(sqlDB *sql.DB) error {
+	return db.ExecTx(sqlDB, func(tx *sql.Tx) error {
+		if _, err := tx.Exec(postgresCreateTablesQuery); err != nil {
+			return err
+		}
+		if _, err := tx.Exec(postgresInsertSchemaVersionQuery, postgresCurrentSchemaVersion); err != nil {
+			return err
+		}
+		return nil
+	})
+}

message/cache_sqlite.go

@@ -0,0 +1,141 @@
+package message
+
+import (
+	"database/sql"
+	"fmt"
+	"path/filepath"
+	"sync"
+	"time"
+
+	_ "github.com/mattn/go-sqlite3" // SQLite driver
+	"heckel.io/ntfy/v2/db"
+	"heckel.io/ntfy/v2/util"
+)
+
+// SQLite runtime query constants
+const (
+	sqliteInsertMessageQuery = `
+		INSERT INTO messages (mid, sequence_id, time, event, expires, topic, message, title, priority, tags, click, icon, actions, attachment_name, attachment_type, attachment_size, attachment_expires, attachment_url, attachment_deleted, sender, user, content_type, encoding, published)
+		VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
+	`
+	sqliteSelectScheduledMessageIDsBySeqIDQuery = `SELECT mid FROM messages WHERE topic = ? AND sequence_id = ? AND published = 0`
+	sqliteDeleteScheduledBySequenceIDQuery      = `DELETE FROM messages WHERE topic = ? AND sequence_id = ? AND published = 0`
+	sqliteUpdateMessagesForTopicExpiryQuery     = `UPDATE messages SET expires = ? WHERE topic = ?`
+	sqliteSelectMessagesByIDQuery               = `
+		SELECT mid, sequence_id, time, event, expires, topic, message, title, priority, tags, click, icon, actions, attachment_name, attachment_type, attachment_size, attachment_expires, attachment_url, sender, user, content_type, encoding
+		FROM messages
+		WHERE mid = ?
+	`
+	sqliteSelectMessagesSinceTimeQuery = `
+		SELECT mid, sequence_id, time, event, expires, topic, message, title, priority, tags, click, icon, actions, attachment_name, attachment_type, attachment_size, attachment_expires, attachment_url, sender, user, content_type, encoding
+		FROM messages
+		WHERE topic = ? AND time >= ? AND published = 1
+		ORDER BY time, id
+	`
+	sqliteSelectMessagesSinceTimeIncludeScheduledQuery = `
+		SELECT mid, sequence_id, time, event, expires, topic, message, title, priority, tags, click, icon, actions, attachment_name, attachment_type, attachment_size, attachment_expires, attachment_url, sender, user, content_type, encoding
+		FROM messages
+		WHERE topic = ? AND time >= ?
+		ORDER BY time, id
+	`
+	sqliteSelectMessagesSinceIDQuery = `
+		SELECT mid, sequence_id, time, event, expires, topic, message, title, priority, tags, click, icon, actions, attachment_name, attachment_type, attachment_size, attachment_expires, attachment_url, sender, user, content_type, encoding
+		FROM messages
+		WHERE topic = ? AND id > COALESCE((SELECT id FROM messages WHERE mid = ?), 0) AND published = 1
+		ORDER BY time, id
+	`
+	sqliteSelectMessagesSinceIDIncludeScheduledQuery = `
+		SELECT mid, sequence_id, time, event, expires, topic, message, title, priority, tags, click, icon, actions, attachment_name, attachment_type, attachment_size, attachment_expires, attachment_url, sender, user, content_type, encoding
+		FROM messages
+		WHERE topic = ? AND (id > COALESCE((SELECT id FROM messages WHERE mid = ?), 0) OR published = 0)
+		ORDER BY time, id
+	`
+	sqliteSelectMessagesLatestQuery = `
+		SELECT mid, sequence_id, time, event, expires, topic, message, title, priority, tags, click, icon, actions, attachment_name, attachment_type, attachment_size, attachment_expires, attachment_url, sender, user, content_type, encoding
+		FROM messages
+		WHERE topic = ? AND published = 1
+		ORDER BY time DESC, id DESC
+		LIMIT 1
+	`
+	sqliteSelectMessagesDueQuery = `
+		SELECT mid, sequence_id, time, event, expires, topic, message, title, priority, tags, click, icon, actions, attachment_name, attachment_type, attachment_size, attachment_expires, attachment_url, sender, user, content_type, encoding
+		FROM messages
+		WHERE time <= ? AND published = 0
+		ORDER BY time, id
+	`
+	sqliteUpdateMessagePublishedQuery = `UPDATE messages SET published = 1 WHERE mid = ?`
+	sqliteSelectMessagesCountQuery    = `SELECT COUNT(*) FROM messages`
+	sqliteSelectTopicsQuery           = `SELECT topic FROM messages GROUP BY topic`
+
+	sqliteDeleteExpiredMessagesQuery         = `DELETE FROM messages WHERE mid IN (SELECT mid FROM messages WHERE expires <= ? AND published = 1 LIMIT ?)`
+	sqliteMarkExpiredAttachmentsDeletedQuery = `UPDATE messages SET attachment_deleted = 1 WHERE mid IN (SELECT mid FROM messages WHERE attachment_expires > 0 AND attachment_expires <= ? AND attachment_deleted = 0 LIMIT ?)`
+	sqliteSelectAttachmentsSizeBySenderQuery = `SELECT IFNULL(SUM(attachment_size), 0) FROM messages WHERE user = '' AND sender = ? AND attachment_expires >= ?`
+	sqliteSelectAttachmentsSizeByUserIDQuery = `SELECT IFNULL(SUM(attachment_size), 0) FROM messages WHERE user = ? AND attachment_expires >= ?`
+	sqliteSelectAttachmentsWithSizesQuery    = `SELECT mid, attachment_size FROM messages WHERE attachment_expires > ? AND attachment_deleted = 0`
+
+	sqliteSelectStatsQuery       = `SELECT value FROM stats WHERE key = 'messages'`
+	sqliteUpdateStatsQuery       = `UPDATE stats SET value = ? WHERE key = 'messages'`
+	sqliteUpdateMessageTimeQuery = `UPDATE messages SET time = ? WHERE mid = ?`
+)
+
+var sqliteQueries = queries{
+	insertMessage:                    sqliteInsertMessageQuery,
+	selectScheduledMessageIDsBySeqID: sqliteSelectScheduledMessageIDsBySeqIDQuery,
+	deleteScheduledBySequenceID:      sqliteDeleteScheduledBySequenceIDQuery,
+	updateMessagesForTopicExpiry:     sqliteUpdateMessagesForTopicExpiryQuery,
+	selectMessagesByID:               sqliteSelectMessagesByIDQuery,
+	selectMessagesSinceTime:          sqliteSelectMessagesSinceTimeQuery,
+	selectMessagesSinceTimeScheduled: sqliteSelectMessagesSinceTimeIncludeScheduledQuery,
+	selectMessagesSinceID:            sqliteSelectMessagesSinceIDQuery,
+	selectMessagesSinceIDScheduled:   sqliteSelectMessagesSinceIDIncludeScheduledQuery,
+	selectMessagesLatest:             sqliteSelectMessagesLatestQuery,
+	selectMessagesDue:                sqliteSelectMessagesDueQuery,
+	deleteExpiredMessages:            sqliteDeleteExpiredMessagesQuery,
+	updateMessagePublished:           sqliteUpdateMessagePublishedQuery,
+	selectMessagesCount:              sqliteSelectMessagesCountQuery,
+	selectTopics:                     sqliteSelectTopicsQuery,
+	markExpiredAttachmentsDeleted:    sqliteMarkExpiredAttachmentsDeletedQuery,
+	selectAttachmentsSizeBySender:    sqliteSelectAttachmentsSizeBySenderQuery,
+	selectAttachmentsSizeByUserID:    sqliteSelectAttachmentsSizeByUserIDQuery,
+	selectAttachmentsWithSizes:       sqliteSelectAttachmentsWithSizesQuery,
+	selectStats:                      sqliteSelectStatsQuery,
+	updateStats:                      sqliteUpdateStatsQuery,
+	updateMessageTime:                sqliteUpdateMessageTimeQuery,
+}
+
+// NewSQLiteStore creates a SQLite file-backed cache
+func NewSQLiteStore(filename, startupQueries string, cacheDuration time.Duration, batchSize int, batchTimeout time.Duration, nop bool) (*Cache, error) {
+	parentDir := filepath.Dir(filename)
+	if !util.FileExists(parentDir) {
+		return nil, fmt.Errorf("cache database directory %s does not exist or is not accessible", parentDir)
+	}
+	d, err := sql.Open("sqlite3", filename)
+	if err != nil {
+		return nil, err
+	}
+	if err := setupSQLite(d, startupQueries, cacheDuration); err != nil {
+		return nil, err
+	}
+	return newCache(db.New(&db.Host{DB: d}, nil), sqliteQueries, &sync.Mutex{}, batchSize, batchTimeout, nop), nil
+}
+
+// NewMemStore creates an in-memory cache
+func NewMemStore() (*Cache, error) {
+	return NewSQLiteStore(createMemoryFilename(), "", 0, 0, 0, false)
+}
+
+// NewNopStore creates an in-memory cache that discards all messages;
+// it is always empty and can be used if caching is entirely disabled
+func NewNopStore() (*Cache, error) {
+	return NewSQLiteStore(createMemoryFilename(), "", 0, 0, 0, true)
+}
+
+// createMemoryFilename creates a unique memory filename to use for the SQLite backend.
+// From mattn/go-sqlite3: "Each connection to ":memory:" opens a brand new in-memory
+// sql database, so if the stdlib's sql engine happens to open another connection and
+// you've only specified ":memory:", that connection will see a brand new database.
+// A workaround is to use "file::memory:?cache=shared" (or "file:foobar?mode=memory&cache=shared").
+// Every connection to this string will point to the same in-memory database."
+func createMemoryFilename() string {
+	return fmt.Sprintf("file:%s?mode=memory&cache=shared", util.RandomString(10))
+}

message/cache_sqlite_schema.go

@@ -0,0 +1,466 @@
+package message
+
+import (
+	"database/sql"
+	"fmt"
+	"time"
+
+	"heckel.io/ntfy/v2/db"
+	"heckel.io/ntfy/v2/log"
+)
+
+// Initial SQLite schema
+const (
+	sqliteCreateTablesQuery = `
+		CREATE TABLE IF NOT EXISTS messages (
+			id INTEGER PRIMARY KEY AUTOINCREMENT,
+			mid TEXT NOT NULL,
+			sequence_id TEXT NOT NULL,
+			time INT NOT NULL,
+			event TEXT NOT NULL,
+			expires INT NOT NULL,
+			topic TEXT NOT NULL,
+			message TEXT NOT NULL,
+			title TEXT NOT NULL,
+			priority INT NOT NULL,
+			tags TEXT NOT NULL,
+			click TEXT NOT NULL,
+			icon TEXT NOT NULL,
+			actions TEXT NOT NULL,
+			attachment_name TEXT NOT NULL,
+			attachment_type TEXT NOT NULL,
+			attachment_size INT NOT NULL,
+			attachment_expires INT NOT NULL,
+			attachment_url TEXT NOT NULL,
+			attachment_deleted INT NOT NULL,
+			sender TEXT NOT NULL,
+			user TEXT NOT NULL,
+			content_type TEXT NOT NULL,
+			encoding TEXT NOT NULL,
+			published INT NOT NULL
+		);
+		CREATE INDEX IF NOT EXISTS idx_mid ON messages (mid);
+		CREATE INDEX IF NOT EXISTS idx_sequence_id ON messages (sequence_id);
+		CREATE INDEX IF NOT EXISTS idx_time ON messages (time);
+		CREATE INDEX IF NOT EXISTS idx_topic ON messages (topic);
+		CREATE INDEX IF NOT EXISTS idx_expires ON messages (expires);
+		CREATE INDEX IF NOT EXISTS idx_sender ON messages (sender);
+		CREATE INDEX IF NOT EXISTS idx_user ON messages (user);
+		CREATE INDEX IF NOT EXISTS idx_attachment_expires ON messages (attachment_expires);
+		CREATE TABLE IF NOT EXISTS stats (
+			key TEXT PRIMARY KEY,
+			value INT
+		);
+		INSERT INTO stats (key, value) VALUES ('messages', 0);
+	`
+)
+
+// Schema version management for SQLite
+const (
+	sqliteCurrentSchemaVersion          = 15
+	sqliteCreateSchemaVersionTableQuery = `
+		CREATE TABLE IF NOT EXISTS schemaVersion (
+			id INT PRIMARY KEY,
+			version INT NOT NULL
+		);
+	`
+	sqliteInsertSchemaVersionQuery = `INSERT INTO schemaVersion VALUES (1, ?)`
+	sqliteUpdateSchemaVersionQuery = `UPDATE schemaVersion SET version = ? WHERE id = 1`
+	sqliteSelectSchemaVersionQuery = `SELECT version FROM schemaVersion WHERE id = 1`
+)
+
+// Schema migrations for SQLite
+const (
+	// 0 -> 1
+	sqliteMigrate0To1AlterMessagesTableQuery = `
+		ALTER TABLE messages ADD COLUMN title TEXT NOT NULL DEFAULT('');
+		ALTER TABLE messages ADD COLUMN priority INT NOT NULL DEFAULT(0);
+		ALTER TABLE messages ADD COLUMN tags TEXT NOT NULL DEFAULT('');
+	`
+
+	// 1 -> 2
+	sqliteMigrate1To2AlterMessagesTableQuery = `
+		ALTER TABLE messages ADD COLUMN published INT NOT NULL DEFAULT(1);
+	`
+
+	// 2 -> 3
+	sqliteMigrate2To3AlterMessagesTableQuery = `
+		ALTER TABLE messages ADD COLUMN click TEXT NOT NULL DEFAULT('');
+		ALTER TABLE messages ADD COLUMN attachment_name TEXT NOT NULL DEFAULT('');
+		ALTER TABLE messages ADD COLUMN attachment_type TEXT NOT NULL DEFAULT('');
+		ALTER TABLE messages ADD COLUMN attachment_size INT NOT NULL DEFAULT('0');
+		ALTER TABLE messages ADD COLUMN attachment_expires INT NOT NULL DEFAULT('0');
+		ALTER TABLE messages ADD COLUMN attachment_owner TEXT NOT NULL DEFAULT('');
+		ALTER TABLE messages ADD COLUMN attachment_url TEXT NOT NULL DEFAULT('');
+	`
+	// 3 -> 4
+	sqliteMigrate3To4AlterMessagesTableQuery = `
+		ALTER TABLE messages ADD COLUMN encoding TEXT NOT NULL DEFAULT('');
+	`
+
+	// 4 -> 5
+	sqliteMigrate4To5AlterMessagesTableQuery = `
+		CREATE TABLE IF NOT EXISTS messages_new (
+			id INTEGER PRIMARY KEY AUTOINCREMENT,
+			mid TEXT NOT NULL,
+			time INT NOT NULL,
+			topic TEXT NOT NULL,
+			message TEXT NOT NULL,
+			title TEXT NOT NULL,
+			priority INT NOT NULL,
+			tags TEXT NOT NULL,
+			click TEXT NOT NULL,
+			attachment_name TEXT NOT NULL,
+			attachment_type TEXT NOT NULL,
+			attachment_size INT NOT NULL,
+			attachment_expires INT NOT NULL,
+			attachment_url TEXT NOT NULL,
+			attachment_owner TEXT NOT NULL,
+			encoding TEXT NOT NULL,
+			published INT NOT NULL
+		);
+		CREATE INDEX IF NOT EXISTS idx_mid ON messages_new (mid);
+		CREATE INDEX IF NOT EXISTS idx_topic ON messages_new (topic);
+		INSERT
+			INTO messages_new (
+				mid, time, topic, message, title, priority, tags, click, attachment_name, attachment_type,
+				attachment_size, attachment_expires, attachment_url, attachment_owner, encoding, published)
+			SELECT
+				id, time, topic, message, title, priority, tags, click, attachment_name, attachment_type,
+				attachment_size, attachment_expires, attachment_url, attachment_owner, encoding, published
+			FROM messages;
+		DROP TABLE messages;
+		ALTER TABLE messages_new RENAME TO messages;
+	`
+
+	// 5 -> 6
+	sqliteMigrate5To6AlterMessagesTableQuery = `
+		ALTER TABLE messages ADD COLUMN actions TEXT NOT NULL DEFAULT('');
+	`
+
+	// 6 -> 7
+	sqliteMigrate6To7AlterMessagesTableQuery = `
+		ALTER TABLE messages RENAME COLUMN attachment_owner TO sender;
+	`
+
+	// 7 -> 8
+	sqliteMigrate7To8AlterMessagesTableQuery = `
+		ALTER TABLE messages ADD COLUMN icon TEXT NOT NULL DEFAULT('');
+	`
+
+	// 8 -> 9
+	sqliteMigrate8To9AlterMessagesTableQuery = `
+		CREATE INDEX IF NOT EXISTS idx_time ON messages (time);
+	`
+
+	// 9 -> 10
+	sqliteMigrate9To10AlterMessagesTableQuery = `
+		ALTER TABLE messages ADD COLUMN user TEXT NOT NULL DEFAULT('');
+		ALTER TABLE messages ADD COLUMN attachment_deleted INT NOT NULL DEFAULT('0');
+		ALTER TABLE messages ADD COLUMN expires INT NOT NULL DEFAULT('0');
+		CREATE INDEX IF NOT EXISTS idx_expires ON messages (expires);
+		CREATE INDEX IF NOT EXISTS idx_sender ON messages (sender);
+		CREATE INDEX IF NOT EXISTS idx_user ON messages (user);
+		CREATE INDEX IF NOT EXISTS idx_attachment_expires ON messages (attachment_expires);
+	`
+	sqliteMigrate9To10UpdateMessageExpiryQuery = `UPDATE messages SET expires = time + ?`
+
+	// 10 -> 11
+	sqliteMigrate10To11AlterMessagesTableQuery = `
+		CREATE TABLE IF NOT EXISTS stats (
+			key TEXT PRIMARY KEY,
+			value INT
+		);
+		INSERT INTO stats (key, value) VALUES ('messages', 0);
+	`
+
+	// 11 -> 12
+	sqliteMigrate11To12AlterMessagesTableQuery = `
+		ALTER TABLE messages ADD COLUMN content_type TEXT NOT NULL DEFAULT('');
+	`
+
+	// 12 -> 13
+	sqliteMigrate12To13AlterMessagesTableQuery = `
+		CREATE INDEX IF NOT EXISTS idx_topic ON messages (topic);
+	`
+
+	// 13 -> 14
+	sqliteMigrate13To14AlterMessagesTableQuery = `
+		ALTER TABLE messages ADD COLUMN sequence_id TEXT NOT NULL DEFAULT('');
+		ALTER TABLE messages ADD COLUMN event TEXT NOT NULL DEFAULT('message');
+		CREATE INDEX IF NOT EXISTS idx_sequence_id ON messages (sequence_id);
+	`
+)
+
+var (
+	sqliteMigrations = map[int]func(db *sql.DB, cacheDuration time.Duration) error{
+		0:  sqliteMigrateFrom0,
+		1:  sqliteMigrateFrom1,
+		2:  sqliteMigrateFrom2,
+		3:  sqliteMigrateFrom3,
+		4:  sqliteMigrateFrom4,
+		5:  sqliteMigrateFrom5,
+		6:  sqliteMigrateFrom6,
+		7:  sqliteMigrateFrom7,
+		8:  sqliteMigrateFrom8,
+		9:  sqliteMigrateFrom9,
+		10: sqliteMigrateFrom10,
+		11: sqliteMigrateFrom11,
+		12: sqliteMigrateFrom12,
+		13: sqliteMigrateFrom13,
+		14: sqliteMigrateFrom14,
+	}
+)
+
+func setupSQLite(db *sql.DB, startupQueries string, cacheDuration time.Duration) error {
+	if err := runSQLiteStartupQueries(db, startupQueries); err != nil {
+		return err
+	}
+	// If 'messages' table does not exist, this must be a new database
+	var messagesCount int
+	if err := db.QueryRow(sqliteSelectMessagesCountQuery).Scan(&messagesCount); err != nil {
+		return setupNewSQLite(db)
+	}
+	// If 'messages' table exists (schema >= 0), check 'schemaVersion' table
+	var schemaVersion int
+	db.QueryRow(sqliteSelectSchemaVersionQuery).Scan(&schemaVersion) // Error means schema version is zero!
+	// Do migrations
+	if schemaVersion == sqliteCurrentSchemaVersion {
+		return nil
+	} else if schemaVersion > sqliteCurrentSchemaVersion {
+		return fmt.Errorf("unexpected schema version: version %d is higher than current version %d", schemaVersion, sqliteCurrentSchemaVersion)
+	}
+	for i := schemaVersion; i < sqliteCurrentSchemaVersion; i++ {
+		fn, ok := sqliteMigrations[i]
+		if !ok {
+			return fmt.Errorf("cannot find migration step from schema version %d to %d", i, i+1)
+		} else if err := fn(db, cacheDuration); err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+func setupNewSQLite(sqlDB *sql.DB) error {
+	return db.ExecTx(sqlDB, func(tx *sql.Tx) error {
+		if _, err := tx.Exec(sqliteCreateTablesQuery); err != nil {
+			return err
+		}
+		if _, err := tx.Exec(sqliteCreateSchemaVersionTableQuery); err != nil {
+			return err
+		}
+		if _, err := tx.Exec(sqliteInsertSchemaVersionQuery, sqliteCurrentSchemaVersion); err != nil {
+			return err
+		}
+		return nil
+	})
+}
+
+func runSQLiteStartupQueries(db *sql.DB, startupQueries string) error {
+	if startupQueries != "" {
+		if _, err := db.Exec(startupQueries); err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+func sqliteMigrateFrom0(sqlDB *sql.DB, _ time.Duration) error {
+	log.Tag(tagMessageCache).Info("Migrating cache database schema: from 0 to 1")
+	return db.ExecTx(sqlDB, func(tx *sql.Tx) error {
+		if _, err := tx.Exec(sqliteMigrate0To1AlterMessagesTableQuery); err != nil {
+			return err
+		}
+		if _, err := tx.Exec(sqliteCreateSchemaVersionTableQuery); err != nil {
+			return err
+		}
+		if _, err := tx.Exec(sqliteInsertSchemaVersionQuery, 1); err != nil {
+			return err
+		}
+		return nil
+	})
+}
+
+func sqliteMigrateFrom1(sqlDB *sql.DB, _ time.Duration) error {
+	log.Tag(tagMessageCache).Info("Migrating cache database schema: from 1 to 2")
+	return db.ExecTx(sqlDB, func(tx *sql.Tx) error {
+		if _, err := tx.Exec(sqliteMigrate1To2AlterMessagesTableQuery); err != nil {
+			return err
+		}
+		if _, err := tx.Exec(sqliteUpdateSchemaVersionQuery, 2); err != nil {
+			return err
+		}
+		return nil
+	})
+}
+
+func sqliteMigrateFrom2(sqlDB *sql.DB, _ time.Duration) error {
+	log.Tag(tagMessageCache).Info("Migrating cache database schema: from 2 to 3")
+	return db.ExecTx(sqlDB, func(tx *sql.Tx) error {
+		if _, err := tx.Exec(sqliteMigrate2To3AlterMessagesTableQuery); err != nil {
+			return err
+		}
+		if _, err := tx.Exec(sqliteUpdateSchemaVersionQuery, 3); err != nil {
+			return err
+		}
+		return nil
+	})
+}
+
+func sqliteMigrateFrom3(sqlDB *sql.DB, _ time.Duration) error {
+	log.Tag(tagMessageCache).Info("Migrating cache database schema: from 3 to 4")
+	return db.ExecTx(sqlDB, func(tx *sql.Tx) error {
+		if _, err := tx.Exec(sqliteMigrate3To4AlterMessagesTableQuery); err != nil {
+			return err
+		}
+		if _, err := tx.Exec(sqliteUpdateSchemaVersionQuery, 4); err != nil {
+			return err
+		}
+		return nil
+	})
+}
+
+func sqliteMigrateFrom4(sqlDB *sql.DB, _ time.Duration) error {
+	log.Tag(tagMessageCache).Info("Migrating cache database schema: from 4 to 5")
+	return db.ExecTx(sqlDB, func(tx *sql.Tx) error {
+		if _, err := tx.Exec(sqliteMigrate4To5AlterMessagesTableQuery); err != nil {
+			return err
+		}
+		if _, err := tx.Exec(sqliteUpdateSchemaVersionQuery, 5); err != nil {
+			return err
+		}
+		return nil
+	})
+}
+
+func sqliteMigrateFrom5(sqlDB *sql.DB, _ time.Duration) error {
+	log.Tag(tagMessageCache).Info("Migrating cache database schema: from 5 to 6")
+	return db.ExecTx(sqlDB, func(tx *sql.Tx) error {
+		if _, err := tx.Exec(sqliteMigrate5To6AlterMessagesTableQuery); err != nil {
+			return err
+		}
+		if _, err := tx.Exec(sqliteUpdateSchemaVersionQuery, 6); err != nil {
+			return err
+		}
+		return nil
+	})
+}
+
+func sqliteMigrateFrom6(sqlDB *sql.DB, _ time.Duration) error {
+	log.Tag(tagMessageCache).Info("Migrating cache database schema: from 6 to 7")
+	return db.ExecTx(sqlDB, func(tx *sql.Tx) error {
+		if _, err := tx.Exec(sqliteMigrate6To7AlterMessagesTableQuery); err != nil {
+			return err
+		}
+		if _, err := tx.Exec(sqliteUpdateSchemaVersionQuery, 7); err != nil {
+			return err
+		}
+		return nil
+	})
+}
+
+func sqliteMigrateFrom7(sqlDB *sql.DB, _ time.Duration) error {
+	log.Tag(tagMessageCache).Info("Migrating cache database schema: from 7 to 8")
+	return db.ExecTx(sqlDB, func(tx *sql.Tx) error {
+		if _, err := tx.Exec(sqliteMigrate7To8AlterMessagesTableQuery); err != nil {
+			return err
+		}
+		if _, err := tx.Exec(sqliteUpdateSchemaVersionQuery, 8); err != nil {
+			return err
+		}
+		return nil
+	})
+}
+
+func sqliteMigrateFrom8(sqlDB *sql.DB, _ time.Duration) error {
+	log.Tag(tagMessageCache).Info("Migrating cache database schema: from 8 to 9")
+	return db.ExecTx(sqlDB, func(tx *sql.Tx) error {
+		if _, err := tx.Exec(sqliteMigrate8To9AlterMessagesTableQuery); err != nil {
+			return err
+		}
+		if _, err := tx.Exec(sqliteUpdateSchemaVersionQuery, 9); err != nil {
+			return err
+		}
+		return nil
+	})
+}
+
+func sqliteMigrateFrom9(sqlDB *sql.DB, cacheDuration time.Duration) error {
+	log.Tag(tagMessageCache).Info("Migrating cache database schema: from 9 to 10")
+	return db.ExecTx(sqlDB, func(tx *sql.Tx) error {
+		if _, err := tx.Exec(sqliteMigrate9To10AlterMessagesTableQuery); err != nil {
+			return err
+		}
+		if _, err := tx.Exec(sqliteMigrate9To10UpdateMessageExpiryQuery, int64(cacheDuration.Seconds())); err != nil {
+			return err
+		}
+		if _, err := tx.Exec(sqliteUpdateSchemaVersionQuery, 10); err != nil {
+			return err
+		}
+		return nil
+	})
+}
+
+func sqliteMigrateFrom10(sqlDB *sql.DB, _ time.Duration) error {
+	log.Tag(tagMessageCache).Info("Migrating cache database schema: from 10 to 11")
+	return db.ExecTx(sqlDB, func(tx *sql.Tx) error {
+		if _, err := tx.Exec(sqliteMigrate10To11AlterMessagesTableQuery); err != nil {
+			return err
+		}
+		if _, err := tx.Exec(sqliteUpdateSchemaVersionQuery, 11); err != nil {
+			return err
+		}
+		return nil
+	})
+}
+
+func sqliteMigrateFrom11(sqlDB *sql.DB, _ time.Duration) error {
+	log.Tag(tagMessageCache).Info("Migrating cache database schema: from 11 to 12")
+	return db.ExecTx(sqlDB, func(tx *sql.Tx) error {
+		if _, err := tx.Exec(sqliteMigrate11To12AlterMessagesTableQuery); err != nil {
+			return err
+		}
+		if _, err := tx.Exec(sqliteUpdateSchemaVersionQuery, 12); err != nil {
+			return err
+		}
+		return nil
+	})
+}
+
+func sqliteMigrateFrom12(sqlDB *sql.DB, _ time.Duration) error {
+	log.Tag(tagMessageCache).Info("Migrating cache database schema: from 12 to 13")
+	return db.ExecTx(sqlDB, func(tx *sql.Tx) error {
+		if _, err := tx.Exec(sqliteMigrate12To13AlterMessagesTableQuery); err != nil {
+			return err
+		}
+		if _, err := tx.Exec(sqliteUpdateSchemaVersionQuery, 13); err != nil {
+			return err
+		}
+		return nil
+	})
+}
+
+func sqliteMigrateFrom13(sqlDB *sql.DB, _ time.Duration) error {
+	log.Tag(tagMessageCache).Info("Migrating cache database schema: from 13 to 14")
+	return db.ExecTx(sqlDB, func(tx *sql.Tx) error {
+		if _, err := tx.Exec(sqliteMigrate13To14AlterMessagesTableQuery); err != nil {
+			return err
+		}
+		if _, err := tx.Exec(sqliteUpdateSchemaVersionQuery, 14); err != nil {
+			return err
+		}
+		return nil
+	})
+}
+
+// sqliteMigrateFrom14 is a no-op; the corresponding Postgres migration adds
+// idx_message_attachment_expires, which SQLite already has from the initial schema.
+func sqliteMigrateFrom14(sqlDB *sql.DB, _ time.Duration) error {
+	log.Tag(tagMessageCache).Info("Migrating cache database schema: from 14 to 15")
+	return db.ExecTx(sqlDB, func(tx *sql.Tx) error {
+		if _, err := tx.Exec(sqliteUpdateSchemaVersionQuery, 15); err != nil {
+			return err
+		}
+		return nil
+	})
+}

message/cache_sqlite_test.go

@@ -0,0 +1,292 @@
+package message_test
+
+import (
+	"database/sql"
+	"fmt"
+	"path/filepath"
+	"testing"
+	"time"
+
+	_ "github.com/mattn/go-sqlite3" // SQLite driver
+	"github.com/stretchr/testify/require"
+	"heckel.io/ntfy/v2/message"
+	"heckel.io/ntfy/v2/model"
+)
+
+func TestSqliteStore_Migration_From0(t *testing.T) {
+	filename := newSqliteTestStoreFile(t)
+	db, err := sql.Open("sqlite3", filename)
+	require.Nil(t, err)
+
+	// Create "version 0" schema
+	_, err = db.Exec(`
+		BEGIN;
+		CREATE TABLE IF NOT EXISTS messages (
+			id VARCHAR(20) PRIMARY KEY,
+			time INT NOT NULL,
+			topic VARCHAR(64) NOT NULL,
+			message VARCHAR(1024) NOT NULL
+		);
+		CREATE INDEX IF NOT EXISTS idx_topic ON messages (topic);
+		COMMIT;
+	`)
+	require.Nil(t, err)
+
+	// Insert a bunch of messages
+	for i := 0; i < 10; i++ {
+		_, err = db.Exec(`INSERT INTO messages (id, time, topic, message) VALUES (?, ?, ?, ?)`,
+			fmt.Sprintf("abcd%d", i), time.Now().Unix(), "mytopic", fmt.Sprintf("some message %d", i))
+		require.Nil(t, err)
+	}
+	require.Nil(t, db.Close())
+
+	// Create store to trigger migration
+	s := newSqliteTestStoreFromFile(t, filename, "")
+	checkSqliteSchemaVersion(t, filename)
+
+	messages, err := s.Messages("mytopic", model.SinceAllMessages, false)
+	require.Nil(t, err)
+	require.Equal(t, 10, len(messages))
+	require.Equal(t, "some message 5", messages[5].Message)
+	require.Equal(t, "", messages[5].Title)
+	require.Nil(t, messages[5].Tags)
+	require.Equal(t, 0, messages[5].Priority)
+}
+
+func TestSqliteStore_Migration_From1(t *testing.T) {
+	filename := newSqliteTestStoreFile(t)
+	db, err := sql.Open("sqlite3", filename)
+	require.Nil(t, err)
+
+	// Create "version 1" schema
+	_, err = db.Exec(`
+		CREATE TABLE IF NOT EXISTS messages (
+			id VARCHAR(20) PRIMARY KEY,
+			time INT NOT NULL,
+			topic VARCHAR(64) NOT NULL,
+			message VARCHAR(512) NOT NULL,
+			title VARCHAR(256) NOT NULL,
+			priority INT NOT NULL,
+			tags VARCHAR(256) NOT NULL
+		);
+		CREATE INDEX IF NOT EXISTS idx_topic ON messages (topic);
+		CREATE TABLE IF NOT EXISTS schemaVersion (
+			id INT PRIMARY KEY,
+			version INT NOT NULL
+		);
+		INSERT INTO schemaVersion (id, version) VALUES (1, 1);
+	`)
+	require.Nil(t, err)
+
+	// Insert a bunch of messages
+	for i := 0; i < 10; i++ {
+		_, err = db.Exec(`INSERT INTO messages (id, time, topic, message, title, priority, tags) VALUES (?, ?, ?, ?, ?, ?, ?)`,
+			fmt.Sprintf("abcd%d", i), time.Now().Unix(), "mytopic", fmt.Sprintf("some message %d", i), "", 0, "")
+		require.Nil(t, err)
+	}
+	require.Nil(t, db.Close())
+
+	// Create store to trigger migration
+	s := newSqliteTestStoreFromFile(t, filename, "")
+	checkSqliteSchemaVersion(t, filename)
+
+	// Add delayed message
+	delayedMessage := model.NewDefaultMessage("mytopic", "some delayed message")
+	delayedMessage.Time = time.Now().Add(time.Minute).Unix()
+	require.Nil(t, s.AddMessage(delayedMessage))
+
+	// 10, not 11!
+	messages, err := s.Messages("mytopic", model.SinceAllMessages, false)
+	require.Nil(t, err)
+	require.Equal(t, 10, len(messages))
+
+	// 11!
+	messages, err = s.Messages("mytopic", model.SinceAllMessages, true)
+	require.Nil(t, err)
+	require.Equal(t, 11, len(messages))
+
+	// Check that index "idx_topic" exists
+	verifyDB, err := sql.Open("sqlite3", filename)
+	require.Nil(t, err)
+	defer verifyDB.Close()
+	rows, err := verifyDB.Query(`SELECT name FROM sqlite_master WHERE type='index' AND name='idx_topic'`)
+	require.Nil(t, err)
+	require.True(t, rows.Next())
+	var indexName string
+	require.Nil(t, rows.Scan(&indexName))
+	require.Equal(t, "idx_topic", indexName)
+	require.Nil(t, rows.Close())
+}
+
+func TestSqliteStore_Migration_From9(t *testing.T) {
+	// This primarily tests the awkward migration that introduces the "expires" column.
+	// The migration logic has to update the column, using the existing "cache-duration" value.
+
+	filename := newSqliteTestStoreFile(t)
+	db, err := sql.Open("sqlite3", filename)
+	require.Nil(t, err)
+
+	// Create "version 9" schema
+	_, err = db.Exec(`
+		BEGIN;
+		CREATE TABLE IF NOT EXISTS messages (
+			id INTEGER PRIMARY KEY AUTOINCREMENT,
+			mid TEXT NOT NULL,
+			time INT NOT NULL,
+			topic TEXT NOT NULL,
+			message TEXT NOT NULL,
+			title TEXT NOT NULL,
+			priority INT NOT NULL,
+			tags TEXT NOT NULL,
+			click TEXT NOT NULL,
+			icon TEXT NOT NULL,
+			actions TEXT NOT NULL,
+			attachment_name TEXT NOT NULL,
+			attachment_type TEXT NOT NULL,
+			attachment_size INT NOT NULL,
+			attachment_expires INT NOT NULL,
+			attachment_url TEXT NOT NULL,
+			sender TEXT NOT NULL,
+			encoding TEXT NOT NULL,
+			published INT NOT NULL
+		);
+		CREATE INDEX IF NOT EXISTS idx_mid ON messages (mid);
+		CREATE INDEX IF NOT EXISTS idx_time ON messages (time);
+		CREATE INDEX IF NOT EXISTS idx_topic ON messages (topic);
+		CREATE TABLE IF NOT EXISTS schemaVersion (
+			id INT PRIMARY KEY,
+			version INT NOT NULL
+		);
+		INSERT INTO schemaVersion (id, version) VALUES (1, 9);
+		COMMIT;
+	`)
+	require.Nil(t, err)
+
+	// Insert a bunch of messages
+	insertQuery := `
+		INSERT INTO messages (mid, time, topic, message, title, priority, tags, click, icon, actions, attachment_name, attachment_type, attachment_size, attachment_expires, attachment_url, sender, encoding, published)
+		VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
+	`
+	for i := 0; i < 10; i++ {
+		_, err = db.Exec(
+			insertQuery,
+			fmt.Sprintf("abcd%d", i),
+			time.Now().Unix(),
+			"mytopic",
+			fmt.Sprintf("some message %d", i),
+			"",        // title
+			0,         // priority
+			"",        // tags
+			"",        // click
+			"",        // icon
+			"",        // actions
+			"",        // attachment_name
+			"",        // attachment_type
+			0,         // attachment_size
+			0,         // attachment_expires
+			"",        // attachment_url
+			"9.9.9.9", // sender
+			"",        // encoding
+			1,         // published
+		)
+		require.Nil(t, err)
+	}
+	require.Nil(t, db.Close())
+
+	// Create store to trigger migration
+	cacheDuration := 17 * time.Hour
+	s, err := message.NewSQLiteStore(filename, "", cacheDuration, 0, 0, false)
+	require.Nil(t, err)
+	t.Cleanup(func() { s.Close() })
+	checkSqliteSchemaVersion(t, filename)
+
+	// Check version
+	verifyDB, err := sql.Open("sqlite3", filename)
+	require.Nil(t, err)
+	defer verifyDB.Close()
+	rows, err := verifyDB.Query(`SELECT version FROM schemaVersion WHERE id = 1`)
+	require.Nil(t, err)
+	require.True(t, rows.Next())
+	var version int
+	require.Nil(t, rows.Scan(&version))
+	require.Equal(t, 15, version)
+	require.Nil(t, rows.Close())
+
+	messages, err := s.Messages("mytopic", model.SinceAllMessages, false)
+	require.Nil(t, err)
+	require.Equal(t, 10, len(messages))
+	for _, m := range messages {
+		require.True(t, m.Expires > time.Now().Add(cacheDuration-5*time.Second).Unix())
+		require.True(t, m.Expires < time.Now().Add(cacheDuration+5*time.Second).Unix())
+	}
+}
+
+func TestSqliteStore_StartupQueries_WAL(t *testing.T) {
+	filename := newSqliteTestStoreFile(t)
+	startupQueries := `pragma journal_mode = WAL;
+pragma synchronous = normal;
+pragma temp_store = memory;`
+	s, err := message.NewSQLiteStore(filename, startupQueries, time.Hour, 0, 0, false)
+	require.Nil(t, err)
+	t.Cleanup(func() { s.Close() })
+	require.Nil(t, s.AddMessage(model.NewDefaultMessage("mytopic", "some message")))
+	require.FileExists(t, filename)
+	require.FileExists(t, filename+"-wal")
+	require.FileExists(t, filename+"-shm")
+}
+
+func TestSqliteStore_StartupQueries_None(t *testing.T) {
+	filename := newSqliteTestStoreFile(t)
+	s, err := message.NewSQLiteStore(filename, "", time.Hour, 0, 0, false)
+	require.Nil(t, err)
+	t.Cleanup(func() { s.Close() })
+	require.Nil(t, s.AddMessage(model.NewDefaultMessage("mytopic", "some message")))
+	require.FileExists(t, filename)
+	require.NoFileExists(t, filename+"-wal")
+	require.NoFileExists(t, filename+"-shm")
+}
+
+func TestSqliteStore_StartupQueries_Fail(t *testing.T) {
+	filename := newSqliteTestStoreFile(t)
+	_, err := message.NewSQLiteStore(filename, `xx error`, time.Hour, 0, 0, false)
+	require.Error(t, err)
+}
+
+func TestNopStore(t *testing.T) {
+	s, err := message.NewNopStore()
+	require.Nil(t, err)
+	t.Cleanup(func() { s.Close() })
+	require.Nil(t, s.AddMessage(model.NewDefaultMessage("mytopic", "my message")))
+
+	messages, err := s.Messages("mytopic", model.SinceAllMessages, false)
+	require.Nil(t, err)
+	require.Empty(t, messages)
+
+	topics, err := s.Topics()
+	require.Nil(t, err)
+	require.Empty(t, topics)
+}
+
+func newSqliteTestStoreFile(t *testing.T) string {
+	return filepath.Join(t.TempDir(), "cache.db")
+}
+
+func newSqliteTestStoreFromFile(t *testing.T, filename, startupQueries string) *message.Cache {
+	s, err := message.NewSQLiteStore(filename, startupQueries, time.Hour, 0, 0, false)
+	require.Nil(t, err)
+	t.Cleanup(func() { s.Close() })
+	return s
+}
+
+func checkSqliteSchemaVersion(t *testing.T, filename string) {
+	db, err := sql.Open("sqlite3", filename)
+	require.Nil(t, err)
+	defer db.Close()
+	rows, err := db.Query(`SELECT version FROM schemaVersion`)
+	require.Nil(t, err)
+	require.True(t, rows.Next())
+	var schemaVersion int
+	require.Nil(t, rows.Scan(&schemaVersion))
+	require.Equal(t, 15, schemaVersion)
+	require.Nil(t, rows.Close())
+}

message/cache_test.go

@@ -0,0 +1,949 @@
+package message_test
+
+import (
+	"net/netip"
+	"path/filepath"
+	"sync"
+	"testing"
+	"time"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+	dbtest "heckel.io/ntfy/v2/db/test"
+	"heckel.io/ntfy/v2/message"
+	"heckel.io/ntfy/v2/model"
+)
+
+func newSqliteTestStore(t *testing.T) *message.Cache {
+	filename := filepath.Join(t.TempDir(), "cache.db")
+	s, err := message.NewSQLiteStore(filename, "", time.Hour, 0, 0, false)
+	require.Nil(t, err)
+	t.Cleanup(func() { s.Close() })
+	return s
+}
+
+func newMemTestStore(t *testing.T) *message.Cache {
+	s, err := message.NewMemStore()
+	require.Nil(t, err)
+	t.Cleanup(func() { s.Close() })
+	return s
+}
+
+func newTestPostgresStore(t *testing.T) *message.Cache {
+	testDB := dbtest.CreateTestPostgres(t)
+	store, err := message.NewPostgresStore(testDB, 0, 0)
+	require.Nil(t, err)
+	return store
+}
+
+func forEachBackend(t *testing.T, f func(t *testing.T, s *message.Cache)) {
+	t.Run("sqlite", func(t *testing.T) {
+		f(t, newSqliteTestStore(t))
+	})
+	t.Run("mem", func(t *testing.T) {
+		f(t, newMemTestStore(t))
+	})
+	t.Run("postgres", func(t *testing.T) {
+		f(t, newTestPostgresStore(t))
+	})
+}
+
+func TestStore_Messages(t *testing.T) {
+	forEachBackend(t, func(t *testing.T, s *message.Cache) {
+		m1 := model.NewDefaultMessage("mytopic", "my message")
+		m1.Time = 1
+
+		m2 := model.NewDefaultMessage("mytopic", "my other message")
+		m2.Time = 2
+
+		require.Nil(t, s.AddMessage(m1))
+		require.Nil(t, s.AddMessage(model.NewDefaultMessage("example", "my example message")))
+		require.Nil(t, s.AddMessage(m2))
+
+		// Adding invalid
+		require.Equal(t, model.ErrUnexpectedMessageType, s.AddMessage(model.NewKeepaliveMessage("mytopic"))) // These should not be added!
+		require.Equal(t, model.ErrUnexpectedMessageType, s.AddMessage(model.NewOpenMessage("example")))      // These should not be added!
+
+		// count
+		count, err := s.MessagesCount()
+		require.Nil(t, err)
+		require.Equal(t, 3, count)
+
+		// mytopic: since all
+		messages, _ := s.Messages("mytopic", model.SinceAllMessages, false)
+		require.Equal(t, 2, len(messages))
+		require.Equal(t, "my message", messages[0].Message)
+		require.Equal(t, "mytopic", messages[0].Topic)
+		require.Equal(t, model.MessageEvent, messages[0].Event)
+		require.Equal(t, "", messages[0].Title)
+		require.Equal(t, 0, messages[0].Priority)
+		require.Nil(t, messages[0].Tags)
+		require.Equal(t, "my other message", messages[1].Message)
+
+		// mytopic: since none
+		messages, _ = s.Messages("mytopic", model.SinceNoMessages, false)
+		require.Empty(t, messages)
+
+		// mytopic: since m1 (by ID)
+		messages, _ = s.Messages("mytopic", model.NewSinceID(m1.ID), false)
+		require.Equal(t, 1, len(messages))
+		require.Equal(t, m2.ID, messages[0].ID)
+		require.Equal(t, "my other message", messages[0].Message)
+		require.Equal(t, "mytopic", messages[0].Topic)
+
+		// mytopic: since 2
+		messages, _ = s.Messages("mytopic", model.NewSinceTime(2), false)
+		require.Equal(t, 1, len(messages))
+		require.Equal(t, "my other message", messages[0].Message)
+
+		// mytopic: latest
+		messages, _ = s.Messages("mytopic", model.SinceLatestMessage, false)
+		require.Equal(t, 1, len(messages))
+		require.Equal(t, "my other message", messages[0].Message)
+
+		// example: since all
+		messages, _ = s.Messages("example", model.SinceAllMessages, false)
+		require.Equal(t, "my example message", messages[0].Message)
+
+		// non-existing: since all
+		messages, _ = s.Messages("doesnotexist", model.SinceAllMessages, false)
+		require.Empty(t, messages)
+	})
+}
+
+func TestStore_MessagesLock(t *testing.T) {
+	forEachBackend(t, func(t *testing.T, s *message.Cache) {
+		var wg sync.WaitGroup
+		for i := 0; i < 5000; i++ {
+			wg.Add(1)
+			go func() {
+				assert.Nil(t, s.AddMessage(model.NewDefaultMessage("mytopic", "test message")))
+				wg.Done()
+			}()
+		}
+		wg.Wait()
+	})
+}
+
+func TestStore_MessagesScheduled(t *testing.T) {
+	forEachBackend(t, func(t *testing.T, s *message.Cache) {
+		m1 := model.NewDefaultMessage("mytopic", "message 1")
+		m2 := model.NewDefaultMessage("mytopic", "message 2")
+		m2.Time = time.Now().Add(time.Hour).Unix()
+		m3 := model.NewDefaultMessage("mytopic", "message 3")
+		m3.Time = time.Now().Add(time.Minute).Unix() // earlier than m2!
+		m4 := model.NewDefaultMessage("mytopic2", "message 4")
+		m4.Time = time.Now().Add(time.Minute).Unix()
+		require.Nil(t, s.AddMessage(m1))
+		require.Nil(t, s.AddMessage(m2))
+		require.Nil(t, s.AddMessage(m3))
+
+		messages, _ := s.Messages("mytopic", model.SinceAllMessages, false) // exclude scheduled
+		require.Equal(t, 1, len(messages))
+		require.Equal(t, "message 1", messages[0].Message)
+
+		messages, _ = s.Messages("mytopic", model.SinceAllMessages, true) // include scheduled
+		require.Equal(t, 3, len(messages))
+		require.Equal(t, "message 1", messages[0].Message)
+		require.Equal(t, "message 3", messages[1].Message) // Order!
+		require.Equal(t, "message 2", messages[2].Message)
+
+		messages, _ = s.MessagesDue()
+		require.Empty(t, messages)
+	})
+}
+
+func TestStore_Topics(t *testing.T) {
+	forEachBackend(t, func(t *testing.T, s *message.Cache) {
+		require.Nil(t, s.AddMessage(model.NewDefaultMessage("topic1", "my example message")))
+		require.Nil(t, s.AddMessage(model.NewDefaultMessage("topic2", "message 1")))
+		require.Nil(t, s.AddMessage(model.NewDefaultMessage("topic2", "message 2")))
+		require.Nil(t, s.AddMessage(model.NewDefaultMessage("topic2", "message 3")))
+
+		topics, err := s.Topics()
+		if err != nil {
+			t.Fatal(err)
+		}
+		require.Equal(t, 2, len(topics))
+		require.Contains(t, topics, "topic1")
+		require.Contains(t, topics, "topic2")
+	})
+}
+
+func TestStore_MessagesTagsPrioAndTitle(t *testing.T) {
+	forEachBackend(t, func(t *testing.T, s *message.Cache) {
+		m := model.NewDefaultMessage("mytopic", "some message")
+		m.Tags = []string{"tag1", "tag2"}
+		m.Priority = 5
+		m.Title = "some title"
+		require.Nil(t, s.AddMessage(m))
+
+		messages, _ := s.Messages("mytopic", model.SinceAllMessages, false)
+		require.Equal(t, []string{"tag1", "tag2"}, messages[0].Tags)
+		require.Equal(t, 5, messages[0].Priority)
+		require.Equal(t, "some title", messages[0].Title)
+	})
+}
+
+func TestStore_MessagesSinceID(t *testing.T) {
+	forEachBackend(t, func(t *testing.T, s *message.Cache) {
+		m1 := model.NewDefaultMessage("mytopic", "message 1")
+		m1.Time = 100
+		m2 := model.NewDefaultMessage("mytopic", "message 2")
+		m2.Time = 200
+		m3 := model.NewDefaultMessage("mytopic", "message 3")
+		m3.Time = time.Now().Add(time.Hour).Unix() // Scheduled, in the future, later than m7 and m5
+		m4 := model.NewDefaultMessage("mytopic", "message 4")
+		m4.Time = 400
+		m5 := model.NewDefaultMessage("mytopic", "message 5")
+		m5.Time = time.Now().Add(time.Minute).Unix() // Scheduled, in the future, later than m7
+		m6 := model.NewDefaultMessage("mytopic", "message 6")
+		m6.Time = 600
+		m7 := model.NewDefaultMessage("mytopic", "message 7")
+		m7.Time = 700
+
+		require.Nil(t, s.AddMessage(m1))
+		require.Nil(t, s.AddMessage(m2))
+		require.Nil(t, s.AddMessage(m3))
+		require.Nil(t, s.AddMessage(m4))
+		require.Nil(t, s.AddMessage(m5))
+		require.Nil(t, s.AddMessage(m6))
+		require.Nil(t, s.AddMessage(m7))
+
+		// Case 1: Since ID exists, exclude scheduled
+		messages, _ := s.Messages("mytopic", model.NewSinceID(m2.ID), false)
+		require.Equal(t, 3, len(messages))
+		require.Equal(t, "message 4", messages[0].Message)
+		require.Equal(t, "message 6", messages[1].Message) // Not scheduled m3/m5!
+		require.Equal(t, "message 7", messages[2].Message)
+
+		// Case 2: Since ID exists, include scheduled
+		messages, _ = s.Messages("mytopic", model.NewSinceID(m2.ID), true)
+		require.Equal(t, 5, len(messages))
+		require.Equal(t, "message 4", messages[0].Message)
+		require.Equal(t, "message 6", messages[1].Message)
+		require.Equal(t, "message 7", messages[2].Message)
+		require.Equal(t, "message 5", messages[3].Message) // Order!
+		require.Equal(t, "message 3", messages[4].Message) // Order!
+
+		// Case 3: Since ID does not exist (-> Return all messages), include scheduled
+		messages, _ = s.Messages("mytopic", model.NewSinceID("doesntexist"), true)
+		require.Equal(t, 7, len(messages))
+		require.Equal(t, "message 1", messages[0].Message)
+		require.Equal(t, "message 2", messages[1].Message)
+		require.Equal(t, "message 4", messages[2].Message)
+		require.Equal(t, "message 6", messages[3].Message)
+		require.Equal(t, "message 7", messages[4].Message)
+		require.Equal(t, "message 5", messages[5].Message) // Order!
+		require.Equal(t, "message 3", messages[6].Message) // Order!
+
+		// Case 4: Since ID exists and is last message (-> Return no messages), exclude scheduled
+		messages, _ = s.Messages("mytopic", model.NewSinceID(m7.ID), false)
+		require.Equal(t, 0, len(messages))
+
+		// Case 5: Since ID exists and is last message (-> Return no messages), include scheduled
+		messages, _ = s.Messages("mytopic", model.NewSinceID(m7.ID), true)
+		require.Equal(t, 2, len(messages))
+		require.Equal(t, "message 5", messages[0].Message)
+		require.Equal(t, "message 3", messages[1].Message)
+	})
+}
+
+func TestStore_Prune(t *testing.T) {
+	forEachBackend(t, func(t *testing.T, s *message.Cache) {
+		now := time.Now().Unix()
+
+		m1 := model.NewDefaultMessage("mytopic", "my message")
+		m1.Time = now - 10
+		m1.Expires = now - 5
+
+		m2 := model.NewDefaultMessage("mytopic", "my other message")
+		m2.Time = now - 5
+		m2.Expires = now + 5 // In the future
+
+		m3 := model.NewDefaultMessage("another_topic", "and another one")
+		m3.Time = now - 12
+		m3.Expires = now - 2
+
+		require.Nil(t, s.AddMessage(m1))
+		require.Nil(t, s.AddMessage(m2))
+		require.Nil(t, s.AddMessage(m3))
+
+		count, err := s.MessagesCount()
+		require.Nil(t, err)
+		require.Equal(t, 3, count)
+
+		deleted, err := s.DeleteExpiredMessages(10)
+		require.Nil(t, err)
+		require.Equal(t, int64(2), deleted)
+
+		count, err = s.MessagesCount()
+		require.Nil(t, err)
+		require.Equal(t, 1, count)
+
+		messages, err := s.Messages("mytopic", model.SinceAllMessages, false)
+		require.Nil(t, err)
+		require.Equal(t, 1, len(messages))
+		require.Equal(t, "my other message", messages[0].Message)
+	})
+}
+
+func TestStore_Attachments(t *testing.T) {
+	forEachBackend(t, func(t *testing.T, s *message.Cache) {
+		expires1 := time.Now().Add(-4 * time.Hour).Unix() // Expired
+		m := model.NewDefaultMessage("mytopic", "flower for you")
+		m.ID = "m1"
+		m.SequenceID = "m1"
+		m.Sender = netip.MustParseAddr("1.2.3.4")
+		m.Attachment = &model.Attachment{
+			Name:    "flower.jpg",
+			Type:    "image/jpeg",
+			Size:    5000,
+			Expires: expires1,
+			URL:     "https://ntfy.sh/file/AbDeFgJhal.jpg",
+		}
+		require.Nil(t, s.AddMessage(m))
+
+		expires2 := time.Now().Add(2 * time.Hour).Unix() // Future
+		m = model.NewDefaultMessage("mytopic", "sending you a car")
+		m.ID = "m2"
+		m.SequenceID = "m2"
+		m.Sender = netip.MustParseAddr("1.2.3.4")
+		m.Attachment = &model.Attachment{
+			Name:    "car.jpg",
+			Type:    "image/jpeg",
+			Size:    10000,
+			Expires: expires2,
+			URL:     "https://ntfy.sh/file/aCaRURL.jpg",
+		}
+		require.Nil(t, s.AddMessage(m))
+
+		expires3 := time.Now().Add(1 * time.Hour).Unix() // Future
+		m = model.NewDefaultMessage("another-topic", "sending you another car")
+		m.ID = "m3"
+		m.SequenceID = "m3"
+		m.User = "u_BAsbaAa"
+		m.Sender = netip.MustParseAddr("5.6.7.8")
+		m.Attachment = &model.Attachment{
+			Name:    "another-car.jpg",
+			Type:    "image/jpeg",
+			Size:    20000,
+			Expires: expires3,
+			URL:     "https://ntfy.sh/file/zakaDHFW.jpg",
+		}
+		require.Nil(t, s.AddMessage(m))
+
+		messages, err := s.Messages("mytopic", model.SinceAllMessages, false)
+		require.Nil(t, err)
+		require.Equal(t, 2, len(messages))
+
+		require.Equal(t, "flower for you", messages[0].Message)
+		require.Equal(t, "flower.jpg", messages[0].Attachment.Name)
+		require.Equal(t, "image/jpeg", messages[0].Attachment.Type)
+		require.Equal(t, int64(5000), messages[0].Attachment.Size)
+		require.Equal(t, expires1, messages[0].Attachment.Expires)
+		require.Equal(t, "https://ntfy.sh/file/AbDeFgJhal.jpg", messages[0].Attachment.URL)
+		require.Equal(t, "1.2.3.4", messages[0].Sender.String())
+
+		require.Equal(t, "sending you a car", messages[1].Message)
+		require.Equal(t, "car.jpg", messages[1].Attachment.Name)
+		require.Equal(t, "image/jpeg", messages[1].Attachment.Type)
+		require.Equal(t, int64(10000), messages[1].Attachment.Size)
+		require.Equal(t, expires2, messages[1].Attachment.Expires)
+		require.Equal(t, "https://ntfy.sh/file/aCaRURL.jpg", messages[1].Attachment.URL)
+		require.Equal(t, "1.2.3.4", messages[1].Sender.String())
+
+		size, err := s.AttachmentBytesUsedBySender("1.2.3.4")
+		require.Nil(t, err)
+		require.Equal(t, int64(10000), size)
+
+		size, err = s.AttachmentBytesUsedBySender("5.6.7.8")
+		require.Nil(t, err)
+		require.Equal(t, int64(0), size) // Accounted to the user, not the IP!
+
+		size, err = s.AttachmentBytesUsedByUser("u_BAsbaAa")
+		require.Nil(t, err)
+		require.Equal(t, int64(20000), size)
+	})
+}
+
+func TestStore_AttachmentsExpired(t *testing.T) {
+	forEachBackend(t, func(t *testing.T, s *message.Cache) {
+		m := model.NewDefaultMessage("mytopic", "flower for you")
+		m.ID = "m1"
+		m.SequenceID = "m1"
+		m.Expires = time.Now().Add(time.Hour).Unix()
+		require.Nil(t, s.AddMessage(m))
+
+		m = model.NewDefaultMessage("mytopic", "message with attachment")
+		m.ID = "m2"
+		m.SequenceID = "m2"
+		m.Expires = time.Now().Add(2 * time.Hour).Unix()
+		m.Attachment = &model.Attachment{
+			Name:    "car.jpg",
+			Type:    "image/jpeg",
+			Size:    10000,
+			Expires: time.Now().Add(2 * time.Hour).Unix(),
+			URL:     "https://ntfy.sh/file/aCaRURL.jpg",
+		}
+		require.Nil(t, s.AddMessage(m))
+
+		m = model.NewDefaultMessage("mytopic", "message with external attachment")
+		m.ID = "m3"
+		m.SequenceID = "m3"
+		m.Expires = time.Now().Add(2 * time.Hour).Unix()
+		m.Attachment = &model.Attachment{
+			Name:    "car.jpg",
+			Type:    "image/jpeg",
+			Expires: 0, // Unknown!
+			URL:     "https://somedomain.com/car.jpg",
+		}
+		require.Nil(t, s.AddMessage(m))
+
+		m = model.NewDefaultMessage("mytopic2", "message with expired attachment")
+		m.ID = "m4"
+		m.SequenceID = "m4"
+		m.Expires = time.Now().Add(2 * time.Hour).Unix()
+		m.Attachment = &model.Attachment{
+			Name:    "expired-car.jpg",
+			Type:    "image/jpeg",
+			Size:    20000,
+			Expires: time.Now().Add(-1 * time.Hour).Unix(),
+			URL:     "https://ntfy.sh/file/aCaRURL.jpg",
+		}
+		require.Nil(t, s.AddMessage(m))
+
+		count, err := s.MarkExpiredAttachmentsDeleted(10)
+		require.Nil(t, err)
+		require.Equal(t, int64(1), count)
+	})
+}
+
+func TestStore_Sender(t *testing.T) {
+	forEachBackend(t, func(t *testing.T, s *message.Cache) {
+		m1 := model.NewDefaultMessage("mytopic", "mymessage")
+		m1.Sender = netip.MustParseAddr("1.2.3.4")
+		require.Nil(t, s.AddMessage(m1))
+
+		m2 := model.NewDefaultMessage("mytopic", "mymessage without sender")
+		require.Nil(t, s.AddMessage(m2))
+
+		messages, err := s.Messages("mytopic", model.SinceAllMessages, false)
+		require.Nil(t, err)
+		require.Equal(t, 2, len(messages))
+		require.Equal(t, messages[0].Sender, netip.MustParseAddr("1.2.3.4"))
+		require.Equal(t, messages[1].Sender, netip.Addr{})
+	})
+}
+
+func TestStore_DeleteScheduledBySequenceID(t *testing.T) {
+	forEachBackend(t, func(t *testing.T, s *message.Cache) {
+		// Create a scheduled (unpublished) message
+		scheduledMsg := model.NewDefaultMessage("mytopic", "scheduled message")
+		scheduledMsg.ID = "scheduled1"
+		scheduledMsg.SequenceID = "seq123"
+		scheduledMsg.Time = time.Now().Add(time.Hour).Unix() // Future time makes it scheduled
+		require.Nil(t, s.AddMessage(scheduledMsg))
+
+		// Create a published message with different sequence ID
+		publishedMsg := model.NewDefaultMessage("mytopic", "published message")
+		publishedMsg.ID = "published1"
+		publishedMsg.SequenceID = "seq456"
+		publishedMsg.Time = time.Now().Add(-time.Hour).Unix() // Past time makes it published
+		require.Nil(t, s.AddMessage(publishedMsg))
+
+		// Create a scheduled message in a different topic
+		otherTopicMsg := model.NewDefaultMessage("othertopic", "other scheduled")
+		otherTopicMsg.ID = "other1"
+		otherTopicMsg.SequenceID = "seq123" // Same sequence ID as scheduledMsg
+		otherTopicMsg.Time = time.Now().Add(time.Hour).Unix()
+		require.Nil(t, s.AddMessage(otherTopicMsg))
+
+		// Verify all messages exist (including scheduled)
+		messages, err := s.Messages("mytopic", model.SinceAllMessages, true)
+		require.Nil(t, err)
+		require.Equal(t, 2, len(messages))
+
+		messages, err = s.Messages("othertopic", model.SinceAllMessages, true)
+		require.Nil(t, err)
+		require.Equal(t, 1, len(messages))
+
+		// Delete scheduled message by sequence ID and verify returned IDs
+		deletedIDs, err := s.DeleteScheduledBySequenceID("mytopic", "seq123")
+		require.Nil(t, err)
+		require.Equal(t, 1, len(deletedIDs))
+		require.Equal(t, "scheduled1", deletedIDs[0])
+
+		// Verify scheduled message is deleted
+		messages, err = s.Messages("mytopic", model.SinceAllMessages, true)
+		require.Nil(t, err)
+		require.Equal(t, 1, len(messages))
+		require.Equal(t, "published message", messages[0].Message)
+
+		// Verify other topic's message still exists (topic-scoped deletion)
+		messages, err = s.Messages("othertopic", model.SinceAllMessages, true)
+		require.Nil(t, err)
+		require.Equal(t, 1, len(messages))
+		require.Equal(t, "other scheduled", messages[0].Message)
+
+		// Deleting non-existent sequence ID should return empty list
+		deletedIDs, err = s.DeleteScheduledBySequenceID("mytopic", "nonexistent")
+		require.Nil(t, err)
+		require.Empty(t, deletedIDs)
+
+		// Deleting published message should not affect it (only deletes unpublished)
+		deletedIDs, err = s.DeleteScheduledBySequenceID("mytopic", "seq456")
+		require.Nil(t, err)
+		require.Empty(t, deletedIDs)
+
+		messages, err = s.Messages("mytopic", model.SinceAllMessages, true)
+		require.Nil(t, err)
+		require.Equal(t, 1, len(messages))
+		require.Equal(t, "published message", messages[0].Message)
+	})
+}
+
+func TestStore_MessageByID(t *testing.T) {
+	forEachBackend(t, func(t *testing.T, s *message.Cache) {
+		// Add a message
+		m := model.NewDefaultMessage("mytopic", "some message")
+		m.Title = "some title"
+		m.Priority = 4
+		m.Tags = []string{"tag1", "tag2"}
+		require.Nil(t, s.AddMessage(m))
+
+		// Retrieve by ID
+		retrieved, err := s.Message(m.ID)
+		require.Nil(t, err)
+		require.Equal(t, m.ID, retrieved.ID)
+		require.Equal(t, "mytopic", retrieved.Topic)
+		require.Equal(t, "some message", retrieved.Message)
+		require.Equal(t, "some title", retrieved.Title)
+		require.Equal(t, 4, retrieved.Priority)
+		require.Equal(t, []string{"tag1", "tag2"}, retrieved.Tags)
+
+		// Non-existent ID returns ErrMessageNotFound
+		_, err = s.Message("doesnotexist")
+		require.Equal(t, model.ErrMessageNotFound, err)
+	})
+}
+
+func TestStore_MarkPublished(t *testing.T) {
+	forEachBackend(t, func(t *testing.T, s *message.Cache) {
+		// Add a scheduled message (future time -> unpublished)
+		m := model.NewDefaultMessage("mytopic", "scheduled message")
+		m.Time = time.Now().Add(time.Hour).Unix()
+		require.Nil(t, s.AddMessage(m))
+
+		// Verify it does not appear in non-scheduled queries
+		messages, err := s.Messages("mytopic", model.SinceAllMessages, false)
+		require.Nil(t, err)
+		require.Equal(t, 0, len(messages))
+
+		// Verify it does appear in scheduled queries
+		messages, err = s.Messages("mytopic", model.SinceAllMessages, true)
+		require.Nil(t, err)
+		require.Equal(t, 1, len(messages))
+
+		// Mark as published
+		require.Nil(t, s.MarkPublished(m))
+
+		// Now it should appear in non-scheduled queries too
+		messages, err = s.Messages("mytopic", model.SinceAllMessages, false)
+		require.Nil(t, err)
+		require.Equal(t, 1, len(messages))
+		require.Equal(t, "scheduled message", messages[0].Message)
+	})
+}
+
+func TestStore_ExpireMessages(t *testing.T) {
+	forEachBackend(t, func(t *testing.T, s *message.Cache) {
+		// Add messages to two topics
+		m1 := model.NewDefaultMessage("topic1", "message 1")
+		m1.Expires = time.Now().Add(time.Hour).Unix()
+		m2 := model.NewDefaultMessage("topic1", "message 2")
+		m2.Expires = time.Now().Add(time.Hour).Unix()
+		m3 := model.NewDefaultMessage("topic2", "message 3")
+		m3.Expires = time.Now().Add(time.Hour).Unix()
+		require.Nil(t, s.AddMessage(m1))
+		require.Nil(t, s.AddMessage(m2))
+		require.Nil(t, s.AddMessage(m3))
+
+		// Verify all messages exist
+		messages, err := s.Messages("topic1", model.SinceAllMessages, false)
+		require.Nil(t, err)
+		require.Equal(t, 2, len(messages))
+		messages, err = s.Messages("topic2", model.SinceAllMessages, false)
+		require.Nil(t, err)
+		require.Equal(t, 1, len(messages))
+
+		// Expire topic1 messages
+		require.Nil(t, s.ExpireMessages("topic1"))
+
+		// topic1 messages should now be expired (expires set to past)
+		deleted, err := s.DeleteExpiredMessages(100)
+		require.Nil(t, err)
+		require.Equal(t, int64(2), deleted)
+
+		// topic2 should be unaffected
+		messages, err = s.Messages("topic2", model.SinceAllMessages, false)
+		require.Nil(t, err)
+		require.Equal(t, 1, len(messages))
+		require.Equal(t, "message 3", messages[0].Message)
+	})
+}
+
+func TestStore_MarkAttachmentsDeleted(t *testing.T) {
+	forEachBackend(t, func(t *testing.T, s *message.Cache) {
+		// Add a message with an expired attachment (file needs cleanup)
+		m1 := model.NewDefaultMessage("mytopic", "old file")
+		m1.ID = "msg1"
+		m1.SequenceID = "msg1"
+		m1.Expires = time.Now().Add(time.Hour).Unix()
+		m1.Attachment = &model.Attachment{
+			Name:    "old.pdf",
+			Type:    "application/pdf",
+			Size:    50000,
+			Expires: time.Now().Add(-time.Hour).Unix(), // Expired
+			URL:     "https://ntfy.sh/file/old.pdf",
+		}
+		require.Nil(t, s.AddMessage(m1))
+
+		// Add a message with another expired attachment
+		m2 := model.NewDefaultMessage("mytopic", "another old file")
+		m2.ID = "msg2"
+		m2.SequenceID = "msg2"
+		m2.Expires = time.Now().Add(time.Hour).Unix()
+		m2.Attachment = &model.Attachment{
+			Name:    "another.pdf",
+			Type:    "application/pdf",
+			Size:    30000,
+			Expires: time.Now().Add(-time.Hour).Unix(), // Expired
+			URL:     "https://ntfy.sh/file/another.pdf",
+		}
+		require.Nil(t, s.AddMessage(m2))
+
+		// Both should be marked as deleted in one batch
+		count, err := s.MarkExpiredAttachmentsDeleted(10)
+		require.Nil(t, err)
+		require.Equal(t, int64(2), count)
+
+		// No more expired attachments to clean up
+		count, err = s.MarkExpiredAttachmentsDeleted(10)
+		require.Nil(t, err)
+		require.Equal(t, int64(0), count)
+
+		// Messages themselves still exist
+		messages, err := s.Messages("mytopic", model.SinceAllMessages, false)
+		require.Nil(t, err)
+		require.Equal(t, 2, len(messages))
+	})
+}
+
+func TestStore_Stats(t *testing.T) {
+	forEachBackend(t, func(t *testing.T, s *message.Cache) {
+		// Initial stats should be zero
+		messages, err := s.Stats()
+		require.Nil(t, err)
+		require.Equal(t, int64(0), messages)
+
+		// Update stats
+		require.Nil(t, s.UpdateStats(42))
+		messages, err = s.Stats()
+		require.Nil(t, err)
+		require.Equal(t, int64(42), messages)
+
+		// Update again (overwrites)
+		require.Nil(t, s.UpdateStats(100))
+		messages, err = s.Stats()
+		require.Nil(t, err)
+		require.Equal(t, int64(100), messages)
+	})
+}
+
+func TestStore_AddMessages(t *testing.T) {
+	forEachBackend(t, func(t *testing.T, s *message.Cache) {
+		// Batch add multiple messages
+		msgs := []*model.Message{
+			model.NewDefaultMessage("mytopic", "batch 1"),
+			model.NewDefaultMessage("mytopic", "batch 2"),
+			model.NewDefaultMessage("othertopic", "batch 3"),
+		}
+		require.Nil(t, s.AddMessages(msgs))
+
+		// Verify all were inserted
+		messages, err := s.Messages("mytopic", model.SinceAllMessages, false)
+		require.Nil(t, err)
+		require.Equal(t, 2, len(messages))
+
+		messages, err = s.Messages("othertopic", model.SinceAllMessages, false)
+		require.Nil(t, err)
+		require.Equal(t, 1, len(messages))
+		require.Equal(t, "batch 3", messages[0].Message)
+
+		// Empty batch should succeed
+		require.Nil(t, s.AddMessages([]*model.Message{}))
+
+		// Batch with invalid event type should fail
+		badMsgs := []*model.Message{
+			model.NewKeepaliveMessage("mytopic"),
+		}
+		require.NotNil(t, s.AddMessages(badMsgs))
+	})
+}
+
+func TestStore_MessagesDue(t *testing.T) {
+	forEachBackend(t, func(t *testing.T, s *message.Cache) {
+		// Add a message scheduled in the past (i.e. it's due now)
+		m1 := model.NewDefaultMessage("mytopic", "due message")
+		m1.Time = time.Now().Add(-time.Second).Unix()
+		// Set expires in the future so it doesn't get pruned
+		m1.Expires = time.Now().Add(time.Hour).Unix()
+		require.Nil(t, s.AddMessage(m1))
+
+		// Add a message scheduled in the future (not due)
+		m2 := model.NewDefaultMessage("mytopic", "future message")
+		m2.Time = time.Now().Add(time.Hour).Unix()
+		require.Nil(t, s.AddMessage(m2))
+
+		// Mark m1 as published so it won't be "due"
+		// (MessagesDue returns unpublished messages whose time <= now)
+		// m1 is auto-published (time <= now), so it should not be due
+		// m2 is unpublished (time in future), not due yet
+		due, err := s.MessagesDue()
+		require.Nil(t, err)
+		require.Equal(t, 0, len(due))
+
+		// Add a message that was explicitly scheduled in the past but time has "arrived"
+		// We need to manipulate the database to create a truly "due" message:
+		// a message with published=false and time <= now
+		m3 := model.NewDefaultMessage("mytopic", "truly due message")
+		m3.Time = time.Now().Add(2 * time.Second).Unix() // 2 seconds from now
+		require.Nil(t, s.AddMessage(m3))
+
+		// Not due yet
+		due, err = s.MessagesDue()
+		require.Nil(t, err)
+		require.Equal(t, 0, len(due))
+
+		// Wait for it to become due
+		time.Sleep(3 * time.Second)
+
+		due, err = s.MessagesDue()
+		require.Nil(t, err)
+		require.Equal(t, 1, len(due))
+		require.Equal(t, "truly due message", due[0].Message)
+	})
+}
+
+func TestStore_MessageFieldRoundTrip(t *testing.T) {
+	forEachBackend(t, func(t *testing.T, s *message.Cache) {
+		// Create a message with all fields populated
+		m := model.NewDefaultMessage("mytopic", "hello world")
+		m.SequenceID = "custom_seq_id"
+		m.Title = "A Title"
+		m.Priority = 4
+		m.Tags = []string{"warning", "srv01"}
+		m.Click = "https://example.com/click"
+		m.Icon = "https://example.com/icon.png"
+		m.Actions = []*model.Action{
+			{
+				ID:     "action1",
+				Action: "view",
+				Label:  "Open Site",
+				URL:    "https://example.com",
+				Clear:  true,
+			},
+			{
+				ID:      "action2",
+				Action:  "http",
+				Label:   "Call Webhook",
+				URL:     "https://example.com/hook",
+				Method:  "PUT",
+				Headers: map[string]string{"X-Token": "secret"},
+				Body:    `{"key":"value"}`,
+			},
+		}
+		m.ContentType = "text/markdown"
+		m.Encoding = "base64"
+		m.Sender = netip.MustParseAddr("9.8.7.6")
+		m.User = "u_TestUser123"
+		require.Nil(t, s.AddMessage(m))
+
+		// Retrieve and verify every field
+		retrieved, err := s.Message(m.ID)
+		require.Nil(t, err)
+
+		require.Equal(t, m.ID, retrieved.ID)
+		require.Equal(t, "custom_seq_id", retrieved.SequenceID)
+		require.Equal(t, m.Time, retrieved.Time)
+		require.Equal(t, m.Expires, retrieved.Expires)
+		require.Equal(t, model.MessageEvent, retrieved.Event)
+		require.Equal(t, "mytopic", retrieved.Topic)
+		require.Equal(t, "hello world", retrieved.Message)
+		require.Equal(t, "A Title", retrieved.Title)
+		require.Equal(t, 4, retrieved.Priority)
+		require.Equal(t, []string{"warning", "srv01"}, retrieved.Tags)
+		require.Equal(t, "https://example.com/click", retrieved.Click)
+		require.Equal(t, "https://example.com/icon.png", retrieved.Icon)
+		require.Equal(t, "text/markdown", retrieved.ContentType)
+		require.Equal(t, "base64", retrieved.Encoding)
+		require.Equal(t, netip.MustParseAddr("9.8.7.6"), retrieved.Sender)
+		require.Equal(t, "u_TestUser123", retrieved.User)
+
+		// Verify actions round-trip
+		require.Equal(t, 2, len(retrieved.Actions))
+
+		require.Equal(t, "action1", retrieved.Actions[0].ID)
+		require.Equal(t, "view", retrieved.Actions[0].Action)
+		require.Equal(t, "Open Site", retrieved.Actions[0].Label)
+		require.Equal(t, "https://example.com", retrieved.Actions[0].URL)
+		require.Equal(t, true, retrieved.Actions[0].Clear)
+
+		require.Equal(t, "action2", retrieved.Actions[1].ID)
+		require.Equal(t, "http", retrieved.Actions[1].Action)
+		require.Equal(t, "Call Webhook", retrieved.Actions[1].Label)
+		require.Equal(t, "https://example.com/hook", retrieved.Actions[1].URL)
+		require.Equal(t, "PUT", retrieved.Actions[1].Method)
+		require.Equal(t, "secret", retrieved.Actions[1].Headers["X-Token"])
+		require.Equal(t, `{"key":"value"}`, retrieved.Actions[1].Body)
+	})
+}
+
+func TestStore_AddMessage_InvalidUTF8(t *testing.T) {
+	forEachBackend(t, func(t *testing.T, s *message.Cache) {
+		// 0xc9 0x43: Latin-1 "ÉC" — 0xc9 starts a 2-byte UTF-8 sequence but 0x43 ('C') is not a continuation byte
+		m := model.NewDefaultMessage("mytopic", "\xc9Cas du serveur")
+		require.Nil(t, s.AddMessage(m))
+		messages, err := s.Messages("mytopic", model.SinceAllMessages, false)
+		require.Nil(t, err)
+		require.Equal(t, 1, len(messages))
+		require.Equal(t, "\uFFFDCas du serveur", messages[0].Message)
+
+		// 0xae: Latin-1 "®" — isolated byte above 0x7F, not a valid UTF-8 start for single byte
+		m2 := model.NewDefaultMessage("mytopic", "Product\xae Pro")
+		require.Nil(t, s.AddMessage(m2))
+		messages, err = s.Messages("mytopic", model.SinceAllMessages, false)
+		require.Nil(t, err)
+		require.Equal(t, "Product\uFFFD Pro", messages[1].Message)
+
+		// 0xe8 0x6d 0x65: Latin-1 "ème" — 0xe8 starts a 3-byte UTF-8 sequence but 0x6d ('m') is not a continuation byte
+		m3 := model.NewDefaultMessage("mytopic", "probl\xe8me critique")
+		require.Nil(t, s.AddMessage(m3))
+		messages, err = s.Messages("mytopic", model.SinceAllMessages, false)
+		require.Nil(t, err)
+		require.Equal(t, "probl\uFFFDme critique", messages[2].Message)
+
+		// 0xb2: Latin-1 "²" — isolated byte in 0x80-0xBF range (UTF-8 continuation byte without lead)
+		m4 := model.NewDefaultMessage("mytopic", "CO\xb2 level high")
+		require.Nil(t, s.AddMessage(m4))
+		messages, err = s.Messages("mytopic", model.SinceAllMessages, false)
+		require.Nil(t, err)
+		require.Equal(t, "CO\uFFFD level high", messages[3].Message)
+
+		// 0xe9 0x6d 0x61: Latin-1 "éma" — 0xe9 starts a 3-byte UTF-8 sequence but 0x6d ('m') is not a continuation byte
+		m5 := model.NewDefaultMessage("mytopic", "th\xe9matique")
+		require.Nil(t, s.AddMessage(m5))
+		messages, err = s.Messages("mytopic", model.SinceAllMessages, false)
+		require.Nil(t, err)
+		require.Equal(t, "th\uFFFDmatique", messages[4].Message)
+
+		// 0xed 0x64 0x65: Latin-1 "íde" — 0xed starts a 3-byte UTF-8 sequence but 0x64 ('d') is not a continuation byte
+		m6 := model.NewDefaultMessage("mytopic", "vid\xed\x64eo surveillance")
+		require.Nil(t, s.AddMessage(m6))
+		messages, err = s.Messages("mytopic", model.SinceAllMessages, false)
+		require.Nil(t, err)
+		require.Equal(t, "vid\uFFFDdeo surveillance", messages[5].Message)
+
+		// 0xf3 0x6e 0x3a 0x20: Latin-1 "ón: " — 0xf3 starts a 4-byte UTF-8 sequence but 0x6e ('n') is not a continuation byte
+		m7 := model.NewDefaultMessage("mytopic", "notificaci\xf3n: alerta")
+		require.Nil(t, s.AddMessage(m7))
+		messages, err = s.Messages("mytopic", model.SinceAllMessages, false)
+		require.Nil(t, err)
+		require.Equal(t, "notificaci\uFFFDn: alerta", messages[6].Message)
+
+		// 0xb7: Latin-1 "·" — isolated continuation byte
+		m8 := model.NewDefaultMessage("mytopic", "item\xb7value")
+		require.Nil(t, s.AddMessage(m8))
+		messages, err = s.Messages("mytopic", model.SinceAllMessages, false)
+		require.Nil(t, err)
+		require.Equal(t, "item\uFFFDvalue", messages[7].Message)
+
+		// 0xa8: Latin-1 "¨" — isolated continuation byte
+		m9 := model.NewDefaultMessage("mytopic", "na\xa8ve")
+		require.Nil(t, s.AddMessage(m9))
+		messages, err = s.Messages("mytopic", model.SinceAllMessages, false)
+		require.Nil(t, err)
+		require.Equal(t, "na\uFFFDve", messages[8].Message)
+
+		// 0xdf 0x64: Latin-1 "ßd" — 0xdf starts a 2-byte UTF-8 sequence but 0x64 ('d') is not a continuation byte
+		m10 := model.NewDefaultMessage("mytopic", "gro\xdf\x64ruck")
+		require.Nil(t, s.AddMessage(m10))
+		messages, err = s.Messages("mytopic", model.SinceAllMessages, false)
+		require.Nil(t, err)
+		require.Equal(t, "gro\uFFFDdruck", messages[9].Message)
+
+		// 0xe4 0x67 0x74: Latin-1 "ägt" — 0xe4 starts a 3-byte UTF-8 sequence but 0x67 ('g') is not a continuation byte
+		m11 := model.NewDefaultMessage("mytopic", "tr\xe4gt Last")
+		require.Nil(t, s.AddMessage(m11))
+		messages, err = s.Messages("mytopic", model.SinceAllMessages, false)
+		require.Nil(t, err)
+		require.Equal(t, "tr\uFFFDgt Last", messages[10].Message)
+
+		// 0xe9 0x65 0x20: Latin-1 "ée " — 0xe9 starts a 3-byte UTF-8 sequence but 0x65 ('e') is not a continuation byte
+		m12 := model.NewDefaultMessage("mytopic", "journ\xe9\x65 termin\xe9\x65")
+		require.Nil(t, s.AddMessage(m12))
+		messages, err = s.Messages("mytopic", model.SinceAllMessages, false)
+		require.Nil(t, err)
+		require.Equal(t, "journ\uFFFDe termin\uFFFDe", messages[11].Message)
+	})
+}
+
+func TestStore_AddMessage_NullByte(t *testing.T) {
+	forEachBackend(t, func(t *testing.T, s *message.Cache) {
+		// 0x00: NUL byte — valid UTF-8 but rejected by PostgreSQL
+		m := model.NewDefaultMessage("mytopic", "hello\x00world")
+		require.Nil(t, s.AddMessage(m))
+
+		messages, err := s.Messages("mytopic", model.SinceAllMessages, false)
+		require.Nil(t, err)
+		require.Equal(t, 1, len(messages))
+		require.Equal(t, "helloworld", messages[0].Message)
+	})
+}
+
+func TestStore_AddMessage_InvalidUTF8InTitleAndTags(t *testing.T) {
+	forEachBackend(t, func(t *testing.T, s *message.Cache) {
+		// Invalid UTF-8 can arrive via HTTP headers (Title, Tags) which bypass body validation
+		m := model.NewDefaultMessage("mytopic", "valid message")
+		m.Title = "\xc9clipse du syst\xe8me"
+		m.Tags = []string{"probl\xe8me", "syst\xe9me"}
+		m.Click = "https://example.com/\xae"
+		require.Nil(t, s.AddMessage(m))
+
+		messages, err := s.Messages("mytopic", model.SinceAllMessages, false)
+		require.Nil(t, err)
+		require.Equal(t, 1, len(messages))
+		require.Equal(t, "\uFFFDclipse du syst\uFFFDme", messages[0].Title)
+		require.Equal(t, "probl\uFFFDme", messages[0].Tags[0])
+		require.Equal(t, "syst\uFFFDme", messages[0].Tags[1])
+		require.Equal(t, "https://example.com/\uFFFD", messages[0].Click)
+	})
+}
+
+func TestStore_AddMessage_InvalidUTF8BatchDoesNotDropValidMessages(t *testing.T) {
+	forEachBackend(t, func(t *testing.T, s *message.Cache) {
+		// Previously, a single invalid message would roll back the entire batch transaction.
+		// Sanitization ensures all messages in a batch are written successfully.
+		msgs := []*model.Message{
+			model.NewDefaultMessage("mytopic", "valid message 1"),
+			model.NewDefaultMessage("mytopic", "notificaci\xf3n: alerta"),
+			model.NewDefaultMessage("mytopic", "valid message 3"),
+		}
+		require.Nil(t, s.AddMessages(msgs))
+
+		messages, err := s.Messages("mytopic", model.SinceAllMessages, false)
+		require.Nil(t, err)
+		require.Equal(t, 3, len(messages))
+	})
+}

mkdocs.yml

@@ -42,8 +42,13 @@ extra:
       link: https://github.com/binwiederhier
 extra_javascript:
   - static/js/extra.js
+  - static/js/bcrypt.js
+  - static/js/config-generator.js
+  - static/js/topic-generator.js
 extra_css:
   - static/css/extra.css
+  - static/css/config-generator.css
+  - static/css/topic-generator.css
 
 markdown_extensions:
   - admonition
@@ -101,6 +106,7 @@ nav:
       - "Development": develop.md
       - "Contributing": contributing.md
       - "Privacy policy": privacy.md
+      - "Terms of Service": terms.md
       - "Contact": contact.md
 
 

model/model.go

@@ -0,0 +1,237 @@
+package model
+
+import (
+	"errors"
+	"net/netip"
+	"time"
+
+	"heckel.io/ntfy/v2/log"
+	"heckel.io/ntfy/v2/util"
+)
+
+// List of possible events
+const (
+	OpenEvent          = "open"
+	KeepaliveEvent     = "keepalive"
+	MessageEvent       = "message"
+	MessageDeleteEvent = "message_delete"
+	MessageClearEvent  = "message_clear"
+	PollRequestEvent   = "poll_request"
+)
+
+// messageIDLength is the length of a randomly generated message ID
+const messageIDLength = 12
+
+// Errors for message operations
+var (
+	ErrUnexpectedMessageType = errors.New("unexpected message type")
+	ErrMessageNotFound       = errors.New("message not found")
+)
+
+// Message represents a message published to a topic
+type Message struct {
+	ID          string      `json:"id"`                    // Random message ID
+	SequenceID  string      `json:"sequence_id,omitempty"` // Message sequence ID for updating message contents (omitted if same as ID)
+	Time        int64       `json:"time"`                  // Unix time in seconds
+	Expires     int64       `json:"expires,omitempty"`     // Unix time in seconds (not required for open/keepalive)
+	Event       string      `json:"event"`                 // One of the above
+	Topic       string      `json:"topic"`
+	Title       string      `json:"title,omitempty"`
+	Message     string      `json:"message,omitempty"`
+	Priority    int         `json:"priority,omitempty"`
+	Tags        []string    `json:"tags,omitempty"`
+	Click       string      `json:"click,omitempty"`
+	Icon        string      `json:"icon,omitempty"`
+	Actions     []*Action   `json:"actions,omitempty"`
+	Attachment  *Attachment `json:"attachment,omitempty"`
+	PollID      string      `json:"poll_id,omitempty"`
+	ContentType string      `json:"content_type,omitempty"` // text/plain by default (if empty), or text/markdown
+	Encoding    string      `json:"encoding,omitempty"`     // Empty for raw UTF-8, or "base64" for encoded bytes
+	Sender      netip.Addr  `json:"-"`                      // IP address of uploader, used for rate limiting
+	User        string      `json:"-"`                      // UserID of the uploader, used to associated attachments
+}
+
+// Context returns a log context for the message
+func (m *Message) Context() log.Context {
+	fields := map[string]any{
+		"topic":               m.Topic,
+		"message_id":          m.ID,
+		"message_sequence_id": m.SequenceID,
+		"message_time":        m.Time,
+		"message_event":       m.Event,
+		"message_body_size":   len(m.Message),
+	}
+	if m.Sender.IsValid() {
+		fields["message_sender"] = m.Sender.String()
+	}
+	if m.User != "" {
+		fields["message_user"] = m.User
+	}
+	return fields
+}
+
+// SanitizeUTF8 replaces invalid UTF-8 sequences and strips NUL bytes from all user-supplied
+// string fields. This is called early in the publish path so that all downstream consumers
+// (Firebase, WebPush, SMTP, cache) receive clean UTF-8 strings.
+func (m *Message) SanitizeUTF8() {
+	m.Topic = util.SanitizeUTF8(m.Topic)
+	m.Message = util.SanitizeUTF8(m.Message)
+	m.Title = util.SanitizeUTF8(m.Title)
+	m.Click = util.SanitizeUTF8(m.Click)
+	m.Icon = util.SanitizeUTF8(m.Icon)
+	m.ContentType = util.SanitizeUTF8(m.ContentType)
+	for i, tag := range m.Tags {
+		m.Tags[i] = util.SanitizeUTF8(tag)
+	}
+	if m.Attachment != nil {
+		m.Attachment.Name = util.SanitizeUTF8(m.Attachment.Name)
+		m.Attachment.Type = util.SanitizeUTF8(m.Attachment.Type)
+		m.Attachment.URL = util.SanitizeUTF8(m.Attachment.URL)
+	}
+}
+
+// ForJSON returns a copy of the message suitable for JSON output.
+// It clears the SequenceID if it equals the ID to reduce redundancy.
+func (m *Message) ForJSON() *Message {
+	if m.SequenceID == m.ID {
+		clone := *m
+		clone.SequenceID = ""
+		return &clone
+	}
+	return m
+}
+
+// Attachment represents a file attachment on a message
+type Attachment struct {
+	Name    string `json:"name"`
+	Type    string `json:"type,omitempty"`
+	Size    int64  `json:"size,omitempty"`
+	Expires int64  `json:"expires,omitempty"`
+	URL     string `json:"url"`
+}
+
+// Action represents a user-defined action on a message
+type Action struct {
+	ID      string            `json:"id"`
+	Action  string            `json:"action"`            // "view", "broadcast", "http", or "copy"
+	Label   string            `json:"label"`             // action button label
+	Clear   bool              `json:"clear"`             // clear notification after successful execution
+	URL     string            `json:"url,omitempty"`     // used in "view" and "http" actions
+	Method  string            `json:"method,omitempty"`  // used in "http" action, default is POST (!)
+	Headers map[string]string `json:"headers,omitempty"` // used in "http" action
+	Body    string            `json:"body,omitempty"`    // used in "http" action
+	Intent  string            `json:"intent,omitempty"`  // used in "broadcast" action
+	Extras  map[string]string `json:"extras,omitempty"`  // used in "broadcast" action
+	Value   string            `json:"value,omitempty"`   // used in "copy" action
+}
+
+// NewAction creates a new action with initialized maps
+func NewAction() *Action {
+	return &Action{
+		Headers: make(map[string]string),
+		Extras:  make(map[string]string),
+	}
+}
+
+// GenerateMessageID creates a new random message ID
+func GenerateMessageID() string {
+	return util.RandomString(messageIDLength)
+}
+
+// ValidMessageID returns true if the given string is a valid message ID
+func ValidMessageID(s string) bool {
+	return util.ValidRandomString(s, messageIDLength)
+}
+
+// NewMessage creates a new message with the current timestamp
+func NewMessage(event, topic, msg string) *Message {
+	return &Message{
+		ID:      GenerateMessageID(),
+		Time:    time.Now().Unix(),
+		Event:   event,
+		Topic:   topic,
+		Message: msg,
+	}
+}
+
+// NewOpenMessage is a convenience method to create an open message
+func NewOpenMessage(topic string) *Message {
+	return NewMessage(OpenEvent, topic, "")
+}
+
+// NewKeepaliveMessage is a convenience method to create a keepalive message
+func NewKeepaliveMessage(topic string) *Message {
+	return NewMessage(KeepaliveEvent, topic, "")
+}
+
+// NewDefaultMessage is a convenience method to create a notification message
+func NewDefaultMessage(topic, msg string) *Message {
+	return NewMessage(MessageEvent, topic, msg)
+}
+
+// NewActionMessage creates a new action message (message_delete or message_clear)
+func NewActionMessage(event, topic, sequenceID string) *Message {
+	m := NewMessage(event, topic, "")
+	m.SequenceID = sequenceID
+	return m
+}
+
+// NewPollRequestMessage is a convenience method to create a poll request message
+func NewPollRequestMessage(topic, pollID string) *Message {
+	m := NewMessage(PollRequestEvent, topic, "New message")
+	m.PollID = pollID
+	return m
+}
+
+// SinceMarker represents a point in time or message ID from which to retrieve messages
+type SinceMarker struct {
+	time time.Time
+	id   string
+}
+
+// NewSinceTime creates a new SinceMarker from a Unix timestamp
+func NewSinceTime(timestamp int64) SinceMarker {
+	return SinceMarker{time.Unix(timestamp, 0), ""}
+}
+
+// NewSinceID creates a new SinceMarker from a message ID
+func NewSinceID(id string) SinceMarker {
+	return SinceMarker{time.Unix(0, 0), id}
+}
+
+// IsAll returns true if this is the "all messages" marker
+func (t SinceMarker) IsAll() bool {
+	return t == SinceAllMessages
+}
+
+// IsNone returns true if this is the "no messages" marker
+func (t SinceMarker) IsNone() bool {
+	return t == SinceNoMessages
+}
+
+// IsLatest returns true if this is the "latest message" marker
+func (t SinceMarker) IsLatest() bool {
+	return t == SinceLatestMessage
+}
+
+// IsID returns true if this marker references a specific message ID
+func (t SinceMarker) IsID() bool {
+	return t.id != "" && t.id != SinceLatestMessage.id
+}
+
+// Time returns the time component of the marker
+func (t SinceMarker) Time() time.Time {
+	return t.time
+}
+
+// ID returns the message ID component of the marker
+func (t SinceMarker) ID() string {
+	return t.id
+}
+
+// Common SinceMarker values for subscribing to messages
+var (
+	SinceAllMessages   = SinceMarker{time.Unix(0, 0), ""}
+	SinceNoMessages    = SinceMarker{time.Unix(1, 0), ""}
+	SinceLatestMessage = SinceMarker{time.Unix(0, 0), "latest"}
+)

s3/client.go

@@ -0,0 +1,324 @@
+package s3
+
+import (
+	"bytes"
+	"context"
+	"crypto/md5" //nolint:gosec // MD5 is required by the S3 protocol for Content-MD5 headers
+	"crypto/tls"
+	"encoding/base64"
+	"encoding/xml"
+	"errors"
+	"fmt"
+	"io"
+	"net/http"
+	"net/url"
+	"strings"
+	"time"
+
+	"heckel.io/ntfy/v2/log"
+)
+
+const (
+	tagS3Client = "s3_client"
+)
+
+// Client is a minimal S3-compatible client. It supports PutObject, GetObject, DeleteObjects,
+// and ListObjectsV2 operations using AWS Signature V4 signing. The bucket and optional key prefix
+// are fixed at construction time. All operations target the same bucket and prefix.
+//
+// The following IAM policy is required for AWS S3:
+//
+//	{
+//	    "Version": "2012-10-17",
+//	    "Statement": [
+//	        {
+//	            "Effect": "Allow",
+//	            "Action": [
+//	                "s3:ListBucket",
+//	                "s3:ListBucketMultipartUploads"
+//	            ],
+//	            "Resource": "arn:aws:s3:::BUCKET_NAME"
+//	        },
+//	        {
+//	            "Effect": "Allow",
+//	            "Action": [
+//	                "s3:GetObject",
+//	                "s3:PutObject",
+//	                "s3:DeleteObject",
+//	                "s3:AbortMultipartUpload"
+//	            ],
+//	            "Resource": "arn:aws:s3:::BUCKET_NAME/*"
+//	        }
+//	    ]
+//	}
+//
+// Fields must not be modified after the Client is passed to any method or goroutine.
+type Client struct {
+	config *Config
+	http   *http.Client
+}
+
+// New creates a new S3 client from the given Config.
+func New(config *Config) *Client {
+	httpClient := config.HTTPClient
+	if httpClient == nil {
+		if config.DisableHTTP2 {
+			httpClient = newHTTP1Client()
+		} else {
+			httpClient = http.DefaultClient
+		}
+	}
+	return &Client{
+		config: config,
+		http:   httpClient,
+	}
+}
+
+// PutObject uploads body to the given key. The key is automatically prefixed with the client's
+// configured prefix.
+//
+// If untrustedLength is between 1 and 5 GB, the body is streamed directly to S3 via a
+// single PUT request without buffering. The read is limited to untrustedLength bytes;
+// any extra data in the body is ignored. If the body is shorter than claimed, the upload fails.
+//
+// Otherwise (untrustedLength <= 0 or > 5 GB), the first 5 MB are buffered to decide
+// between a simple PUT and multipart upload.
+//
+// See https://docs.aws.amazon.com/AmazonS3/latest/API/API_PutObject.html
+// and https://docs.aws.amazon.com/AmazonS3/latest/API/API_CreateMultipartUpload.html
+func (c *Client) PutObject(ctx context.Context, key string, body io.Reader, untrustedLength int64) error {
+	if untrustedLength > 0 && untrustedLength <= maxSinglePutSize {
+		// Stream directly: Content-Length is known (but untrusted). LimitReader ensures we send at most
+		// untrustedLength bytes, and any extra data in body is ignored.
+		return c.putObject(ctx, key, io.LimitReader(body, untrustedLength), untrustedLength)
+	}
+	// Buffered path: read first 5 MB to decide simple vs multipart
+	first := make([]byte, partSize)
+	n, err := io.ReadFull(body, first)
+	if errors.Is(err, io.ErrUnexpectedEOF) || err == io.EOF {
+		return c.putObject(ctx, key, bytes.NewReader(first[:n]), int64(n))
+	} else if err != nil {
+		return fmt.Errorf("error reading object %s from client: %w", key, err)
+	}
+	return c.putObjectMultipart(ctx, key, io.MultiReader(bytes.NewReader(first), body))
+}
+
+// putObject uploads a body with known size using a simple PUT with UNSIGNED-PAYLOAD.
+func (c *Client) putObject(ctx context.Context, key string, body io.Reader, size int64) error {
+	log.Tag(tagS3Client).Debug("Uploading object %s (%d bytes)", key, size)
+	req, err := http.NewRequestWithContext(ctx, http.MethodPut, c.config.ObjectURL(key), body)
+	if err != nil {
+		return fmt.Errorf("creating upload request object %s failed: %w", key, err)
+	}
+	req.ContentLength = size
+	c.signV4(req, unsignedPayload)
+	resp, err := c.http.Do(req)
+	if err != nil {
+		return fmt.Errorf("uploading object %s failed: %w", key, err)
+	}
+	defer resp.Body.Close()
+	if !isHTTPSuccess(resp) {
+		return parseError(resp)
+	}
+	return nil
+}
+
+// GetObject downloads an object. The key is automatically prefixed with the client's configured
+// prefix. The caller must close the returned ReadCloser.
+//
+// See https://docs.aws.amazon.com/AmazonS3/latest/API/API_GetObject.html
+func (c *Client) GetObject(ctx context.Context, key string) (io.ReadCloser, int64, error) {
+	log.Tag(tagS3Client).Debug("Fetching object %s", key)
+	req, err := http.NewRequestWithContext(ctx, http.MethodGet, c.config.ObjectURL(key), nil)
+	if err != nil {
+		return nil, 0, fmt.Errorf("error creating HTTP GET request for %s: %w", key, err)
+	}
+	c.signV4(req, emptyPayloadHash)
+	resp, err := c.http.Do(req)
+	if err != nil {
+		return nil, 0, fmt.Errorf("error fetching object %s: %w", key, err)
+	} else if !isHTTPSuccess(resp) {
+		err := parseError(resp)
+		resp.Body.Close()
+		return nil, 0, err
+	}
+	return resp.Body, resp.ContentLength, nil
+}
+
+// ListObjectsV2 returns all objects under the client's configured prefix by paginating through
+// ListObjectsV2 results automatically. Keys in the returned objects have the prefix stripped,
+// so they match the keys used with PutObject/GetObject/DeleteObjects. It stops after 10,000
+// pages as a safety valve.
+//
+// See https://docs.aws.amazon.com/AmazonS3/latest/API/API_ListObjectsV2.html
+func (c *Client) ListObjectsV2(ctx context.Context) ([]*Object, error) {
+	var all []*Object
+	var token string
+	for page := 0; page < maxPages; page++ {
+		result, err := c.listObjectsV2(ctx, token)
+		if err != nil {
+			return nil, err
+		}
+		for _, obj := range result.Contents {
+			var lastModified time.Time
+			if obj.LastModified != "" {
+				lastModified, _ = time.Parse(time.RFC3339, obj.LastModified)
+			}
+			all = append(all, &Object{
+				Key:          c.config.StripPrefix(obj.Key),
+				Size:         obj.Size,
+				LastModified: lastModified,
+			})
+		}
+		if !result.IsTruncated {
+			return all, nil
+		}
+		token = result.NextContinuationToken
+	}
+	return nil, fmt.Errorf("listing objects exceeded %d pages", maxPages)
+}
+
+// listObjectsV2 performs a single ListObjectsV2 request using the client's configured prefix.
+func (c *Client) listObjectsV2(ctx context.Context, continuationToken string) (*listObjectsV2Result, error) {
+	if continuationToken == "" {
+		log.Tag(tagS3Client).Debug("Listing remote objects")
+	} else {
+		log.Tag(tagS3Client).Debug("Listing remote objects, continuing with token '%s'", continuationToken)
+	}
+	query := url.Values{"list-type": {"2"}}
+	if prefix := c.config.ListPrefix(); prefix != "" {
+		query.Set("prefix", prefix)
+	}
+	if continuationToken != "" {
+		query.Set("continuation-token", continuationToken)
+	}
+	respBody, err := c.do(ctx, "ListObjects", http.MethodGet, c.config.BucketURL()+"?"+query.Encode(), nil, nil)
+	if err != nil {
+		return nil, err
+	}
+	var result listObjectsV2Result
+	if err := xml.Unmarshal(respBody, &result); err != nil {
+		return nil, fmt.Errorf("failed to unmarshal list object response: %w", err)
+	}
+	return &result, nil
+}
+
+// DeleteObjects removes multiple objects in a single batch request. Keys are automatically
+// prefixed with the client's configured prefix. S3 supports up to 1000 keys per call; the
+// caller is responsible for batching if needed.
+//
+// Even when S3 returns HTTP 200, individual keys may fail. If any per-key errors are present
+// in the response, they are returned as a combined error.
+//
+// See https://docs.aws.amazon.com/AmazonS3/latest/API/API_DeleteObjects.html
+func (c *Client) DeleteObjects(ctx context.Context, keys []string) error {
+	// S3 DeleteObjects supports up to 1000 keys per call
+	for i := 0; i < len(keys); i += maxDeleteBatchSize {
+		end := i + maxDeleteBatchSize
+		if end > len(keys) {
+			end = len(keys)
+		}
+		if err := c.deleteObjects(ctx, keys[i:end]); err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+func (c *Client) deleteObjects(ctx context.Context, keys []string) error {
+	log.Tag(tagS3Client).Debug("Deleting %d object(s)", len(keys))
+	req := &deleteObjectsRequest{
+		Quiet: true,
+	}
+	for _, key := range keys {
+		req.Objects = append(req.Objects, &deleteObject{Key: c.config.ObjectKey(key)})
+	}
+	body, err := xml.Marshal(req)
+	if err != nil {
+		return fmt.Errorf("error marshalling XML for deleting objects: %w", err)
+	}
+
+	// Content-MD5 is required by the S3 protocol for DeleteObjects requests.
+	md5Sum := md5.Sum(body) //nolint:gosec
+	headers := map[string]string{
+		"Content-MD5": base64.StdEncoding.EncodeToString(md5Sum[:]),
+	}
+	reqURL := c.config.BucketURL() + "?delete"
+	respBody, err := c.do(ctx, "DeleteObjects", http.MethodPost, reqURL, body, headers)
+	if err != nil {
+		return fmt.Errorf("error deleting objects: %w", err)
+	}
+
+	// S3 may return HTTP 200 with per-key errors in the response body
+	var result deleteObjectsResult
+	if err := xml.Unmarshal(respBody, &result); err != nil {
+		return nil // If we can't parse, assume success (Quiet mode returns empty body on success)
+	}
+	if len(result.Errors) > 0 {
+		var msgs []string
+		for _, e := range result.Errors {
+			msgs = append(msgs, fmt.Sprintf("%s: %s", e.Key, e.Message))
+		}
+		return fmt.Errorf("error deleting objects, partial failure: %s", strings.Join(msgs, "; "))
+	}
+	return nil
+}
+
+// do creates a signed request, executes it, reads the response body, and checks for errors.
+// If body is nil, the request is sent with an empty payload. If body is non-nil, it is sent
+// with a computed SHA-256 payload hash and Content-Type: application/xml.
+func (c *Client) do(ctx context.Context, op, method, reqURL string, body []byte, headers map[string]string) ([]byte, error) {
+	log.Tag(tagS3Client).Trace("Performing request %s %s %s (body: %d bytes)", op, method, reqURL, len(body))
+	var reader io.Reader
+	var hash string
+	if body != nil {
+		reader = bytes.NewReader(body)
+		hash = sha256Hex(body)
+	} else {
+		hash = emptyPayloadHash
+	}
+	req, err := http.NewRequestWithContext(ctx, method, reqURL, reader)
+	if err != nil {
+		return nil, fmt.Errorf("s3: %s request: %w", op, err)
+	}
+	if body != nil {
+		req.ContentLength = int64(len(body))
+		req.Header.Set("Content-Type", "application/xml")
+	} else {
+		req.ContentLength = 0
+	}
+	for k, v := range headers {
+		req.Header.Set(k, v)
+	}
+	c.signV4(req, hash)
+	resp, err := c.http.Do(req)
+	if err != nil {
+		return nil, fmt.Errorf("s3: %s: %w", op, err)
+	}
+	respBody, err := io.ReadAll(io.LimitReader(resp.Body, maxResponseBytes))
+	resp.Body.Close()
+	if err != nil {
+		return nil, fmt.Errorf("s3: %s read: %w", op, err)
+	}
+	if !isHTTPSuccess(resp) {
+		return nil, parseErrorFromBytes(resp.StatusCode, respBody)
+	}
+	return respBody, nil
+}
+
+// newHTTP1Client creates an HTTP client that forces HTTP/1.1 by disabling HTTP/2
+// ALPN negotiation. This works around HTTP/2 stream errors with some S3-compatible
+// providers (e.g. DigitalOcean Spaces) that can cause non-retryable failures on
+// streaming uploads when the server resets the stream mid-transfer.
+// See https://github.com/rclone/rclone/issues/4673, https://github.com/golang/go/issues/42777
+func newHTTP1Client() *http.Client {
+	return &http.Client{
+		Transport: &http.Transport{
+			TLSClientConfig: &tls.Config{
+				MinVersion: tls.VersionTLS12,
+			},
+			ForceAttemptHTTP2: false,
+			TLSNextProto:      make(map[string]func(string, *tls.Conn) http.RoundTripper),
+		},
+	}
+}

s3/client_auth.go

@@ -0,0 +1,71 @@
+package s3
+
+import (
+	"encoding/hex"
+	"fmt"
+	"net/http"
+	"sort"
+	"strings"
+	"time"
+)
+
+// signV4 signs req in place using AWS Signature V4. payloadHash is the hex-encoded SHA-256
+// of the request body, or the literal string "UNSIGNED-PAYLOAD" for streaming uploads.
+//
+// See https://docs.aws.amazon.com/AmazonS3/latest/API/sig-v4-authenticating-requests.html
+func (c *Client) signV4(req *http.Request, hash string) {
+	now := time.Now().UTC()
+	datestamp := now.Format("20060102")
+	amzDate := now.Format("20060102T150405Z")
+
+	// Required headers
+	req.Header.Set("Host", c.config.HostHeader())
+	req.Header.Set("X-Amz-Date", amzDate)
+	req.Header.Set("X-Amz-Content-Sha256", hash)
+
+	// Canonical headers (all headers we set, sorted by lowercase key)
+	signedKeys := make([]string, 0, len(req.Header))
+	canonHeaders := make(map[string]string, len(req.Header))
+	for k := range req.Header {
+		lk := strings.ToLower(k)
+		signedKeys = append(signedKeys, lk)
+		canonHeaders[lk] = strings.TrimSpace(req.Header.Get(k))
+	}
+	sort.Strings(signedKeys)
+	signedHeadersStr := strings.Join(signedKeys, ";")
+	var chBuf strings.Builder
+	for _, k := range signedKeys {
+		chBuf.WriteString(k)
+		chBuf.WriteByte(':')
+		chBuf.WriteString(canonHeaders[k])
+		chBuf.WriteByte('\n')
+	}
+
+	// Canonical request
+	canonicalRequest := strings.Join([]string{
+		req.Method,
+		canonicalURI(req.URL),
+		canonicalQueryString(req.URL.Query()),
+		chBuf.String(),
+		signedHeadersStr,
+		hash,
+	}, "\n")
+
+	// String to sign
+	credentialScope := datestamp + "/" + c.config.Region + "/s3/aws4_request"
+	stringToSign := "AWS4-HMAC-SHA256\n" + amzDate + "\n" + credentialScope + "\n" + sha256Hex([]byte(canonicalRequest))
+
+	// Signing key
+	signingKey := hmacSHA256(hmacSHA256(hmacSHA256(hmacSHA256(
+		[]byte("AWS4"+c.config.SecretKey), []byte(datestamp)),
+		[]byte(c.config.Region)),
+		[]byte("s3")),
+		[]byte("aws4_request"))
+
+	signature := hex.EncodeToString(hmacSHA256(signingKey, []byte(stringToSign)))
+	header := fmt.Sprintf(
+		"AWS4-HMAC-SHA256 Credential=%s/%s, SignedHeaders=%s, Signature=%s",
+		c.config.AccessKey, credentialScope, signedHeadersStr, signature,
+	)
+	req.Header.Set("Authorization", header)
+}

s3/client_multipart.go

@@ -0,0 +1,187 @@
+package s3
+
+import (
+	"bytes"
+	"context"
+	"encoding/xml"
+	"errors"
+	"fmt"
+	"io"
+	"net/http"
+	"net/url"
+	"time"
+
+	"heckel.io/ntfy/v2/log"
+)
+
+// AbortIncompleteUploads lists all in-progress multipart uploads and aborts those initiated
+// before the given cutoff time. This cleans up orphaned upload parts from interrupted uploads.
+//
+// See https://docs.aws.amazon.com/AmazonS3/latest/API/API_ListMultipartUploads.html
+// and https://docs.aws.amazon.com/AmazonS3/latest/API/API_AbortMultipartUpload.html
+func (c *Client) AbortIncompleteUploads(ctx context.Context, cutoff time.Time) error {
+	uploads, err := c.listMultipartUploads(ctx)
+	if err != nil {
+		return err
+	}
+	for _, u := range uploads {
+		if !u.Initiated.IsZero() && u.Initiated.Before(cutoff) {
+			c.abortMultipartUpload(ctx, u.Key, u.UploadID)
+		}
+	}
+	return nil
+}
+
+// listMultipartUploads returns in-progress multipart uploads for the client's prefix.
+// It paginates automatically, stopping after 10,000 pages as a safety valve.
+func (c *Client) listMultipartUploads(ctx context.Context) ([]*multipartUpload, error) {
+	var all []*multipartUpload
+	var keyMarker, uploadIDMarker string
+	for page := 0; page < maxPages; page++ {
+		query := url.Values{"uploads": {""}}
+		if prefix := c.config.ListPrefix(); prefix != "" {
+			query.Set("prefix", prefix)
+		}
+		if keyMarker != "" {
+			query.Set("key-marker", keyMarker)
+			query.Set("upload-id-marker", uploadIDMarker)
+		}
+		respBody, err := c.do(ctx, "ListMultipartUploads", http.MethodGet, c.config.BucketURL()+"?"+query.Encode(), nil, nil)
+		if err != nil {
+			return nil, err
+		}
+		var result listMultipartUploadsResult
+		if err := xml.Unmarshal(respBody, &result); err != nil {
+			return nil, fmt.Errorf("error unmarshalling multipart upload result: %w", err)
+		}
+		for _, u := range result.Uploads {
+			var initiated time.Time
+			if u.Initiated != "" {
+				initiated, _ = time.Parse(time.RFC3339, u.Initiated)
+			}
+			all = append(all, &multipartUpload{
+				Key:       u.Key,
+				UploadID:  u.UploadID,
+				Initiated: initiated,
+			})
+		}
+		if !result.IsTruncated {
+			return all, nil
+		}
+		keyMarker = result.NextKeyMarker
+		uploadIDMarker = result.NextUploadIDMarker
+	}
+	return nil, fmt.Errorf("error listing multipart uploads, exceeded %d pages", maxPages)
+}
+
+// abortMultipartUpload cancels an in-progress multipart upload. Called on error to clean up.
+func (c *Client) abortMultipartUpload(ctx context.Context, key, uploadID string) {
+	log.Tag(tagS3Client).Info("Aborting multipart upload for object %s", key)
+	reqURL := fmt.Sprintf("%s?uploadId=%s", c.config.ObjectURL(key), url.QueryEscape(uploadID))
+	req, err := http.NewRequestWithContext(ctx, http.MethodDelete, reqURL, nil)
+	if err != nil {
+		return
+	}
+	c.signV4(req, emptyPayloadHash)
+	resp, err := c.http.Do(req)
+	if err != nil {
+		return
+	}
+	resp.Body.Close()
+}
+
+// putObjectMultipart uploads body using S3 multipart upload. It reads the body in partSize
+// chunks, uploading each as a separate part. This allows uploading without knowing the total
+// body size in advance.
+func (c *Client) putObjectMultipart(ctx context.Context, key string, body io.Reader) error {
+	log.Tag(tagS3Client).Debug("Uploading multipart object %s", key)
+
+	// Step 1: Initiate multipart upload
+	uploadID, err := c.initiateMultipartUpload(ctx, key)
+	if err != nil {
+		return err
+	}
+
+	// Step 2: Upload parts
+	partNumber := 1
+	buf := make([]byte, partSize)
+	var parts []*completedPart
+	for {
+		n, err := io.ReadFull(body, buf)
+		if n > 0 {
+			etag, uploadErr := c.uploadPart(ctx, key, uploadID, partNumber, buf[:n])
+			if uploadErr != nil {
+				c.abortMultipartUpload(ctx, key, uploadID)
+				return uploadErr
+			}
+			parts = append(parts, &completedPart{
+				PartNumber: partNumber,
+				ETag:       etag,
+			})
+			partNumber++
+		}
+		if err == io.EOF || errors.Is(err, io.ErrUnexpectedEOF) {
+			break
+		} else if err != nil {
+			c.abortMultipartUpload(ctx, key, uploadID)
+			return fmt.Errorf("error uploading object %s, reading from client failed: %w", key, err)
+		}
+	}
+
+	// Step 3: Complete multipart upload
+	return c.completeMultipartUpload(ctx, key, uploadID, parts)
+}
+
+// initiateMultipartUpload starts a new multipart upload and returns the upload ID.
+func (c *Client) initiateMultipartUpload(ctx context.Context, key string) (string, error) {
+	respBody, err := c.do(ctx, "InitiateMultipartUpload", http.MethodPost, c.config.ObjectURL(key)+"?uploads", nil, nil)
+	if err != nil {
+		return "", err
+	}
+	var result initiateMultipartUploadResult
+	if err := xml.Unmarshal(respBody, &result); err != nil {
+		return "", fmt.Errorf("error unmarshalling initiate multipart upload response: %w", err)
+	}
+	return result.UploadID, nil
+}
+
+// uploadPart uploads a single part of a multipart upload and returns the ETag.
+func (c *Client) uploadPart(ctx context.Context, key, uploadID string, partNumber int, data []byte) (string, error) {
+	log.Tag(tagS3Client).Debug("Uploading multipart part for object %s, part %d, size %d", key, partNumber, len(data))
+	reqURL := fmt.Sprintf("%s?partNumber=%d&uploadId=%s", c.config.ObjectURL(key), partNumber, url.QueryEscape(uploadID))
+	req, err := http.NewRequestWithContext(ctx, http.MethodPut, reqURL, bytes.NewReader(data))
+	if err != nil {
+		return "", fmt.Errorf("error creating multipart upload part request for object %s: %w", key, err)
+	}
+	req.ContentLength = int64(len(data))
+	c.signV4(req, unsignedPayload)
+	resp, err := c.http.Do(req)
+	if err != nil {
+		return "", fmt.Errorf("error uploading multipart part for object %s: %w", key, err)
+	}
+	defer resp.Body.Close()
+	if !isHTTPSuccess(resp) {
+		return "", parseError(resp)
+	}
+	return resp.Header.Get("ETag"), nil
+}
+
+// completeMultipartUpload finalizes a multipart upload with the given parts.
+func (c *Client) completeMultipartUpload(ctx context.Context, key, uploadID string, parts []*completedPart) error {
+	log.Tag(tagS3Client).Debug("Completing multipart upload for object %s, %d parts", key, len(parts))
+	bodyBytes, err := xml.Marshal(&completeMultipartUploadRequest{Parts: parts})
+	if err != nil {
+		return fmt.Errorf("error marshalling complete multipart upload request: %w", err)
+	}
+	reqURL := fmt.Sprintf("%s?uploadId=%s", c.config.ObjectURL(key), url.QueryEscape(uploadID))
+	respBody, err := c.do(ctx, "CompleteMultipartUpload", http.MethodPost, reqURL, bodyBytes, nil)
+	if err != nil {
+		return err
+	}
+	// Check if the response contains an error (S3 can return 200 with an error body)
+	var errResp errorResponse
+	if xml.Unmarshal(respBody, &errResp) == nil && errResp.Code != "" {
+		return &errResp
+	}
+	return nil
+}

s3/client_test.go

@@ -0,0 +1,455 @@
+package s3
+
+import (
+	"bytes"
+	"context"
+	"fmt"
+	"io"
+	"os"
+	"strings"
+	"sync"
+	"testing"
+	"time"
+
+	"github.com/stretchr/testify/require"
+)
+
+func TestParseURL_Success(t *testing.T) {
+	cfg, err := ParseURL("s3://AKID:SECRET@my-bucket/attachments?region=us-east-1")
+	require.Nil(t, err)
+	require.Equal(t, "my-bucket", cfg.Bucket)
+	require.Equal(t, "attachments", cfg.Prefix)
+	require.Equal(t, "us-east-1", cfg.Region)
+	require.Equal(t, "AKID", cfg.AccessKey)
+	require.Equal(t, "SECRET", cfg.SecretKey)
+	require.Equal(t, "https", cfg.Scheme)
+	require.Equal(t, "s3.us-east-1.amazonaws.com", cfg.Endpoint)
+	require.False(t, cfg.PathStyle)
+}
+
+func TestParseURL_NoPrefix(t *testing.T) {
+	cfg, err := ParseURL("s3://AKID:SECRET@my-bucket?region=us-east-1")
+	require.Nil(t, err)
+	require.Equal(t, "my-bucket", cfg.Bucket)
+	require.Equal(t, "", cfg.Prefix)
+}
+
+func TestParseURL_WithEndpoint(t *testing.T) {
+	cfg, err := ParseURL("s3://AKID:SECRET@my-bucket/prefix?region=us-east-1&endpoint=https://s3.example.com")
+	require.Nil(t, err)
+	require.Equal(t, "my-bucket", cfg.Bucket)
+	require.Equal(t, "prefix", cfg.Prefix)
+	require.Equal(t, "https", cfg.Scheme)
+	require.Equal(t, "s3.example.com", cfg.Endpoint)
+	require.True(t, cfg.PathStyle)
+}
+
+func TestParseURL_EndpointHTTP(t *testing.T) {
+	cfg, err := ParseURL("s3://AKID:SECRET@my-bucket?region=us-east-1&endpoint=http://localhost:9000")
+	require.Nil(t, err)
+	require.Equal(t, "http", cfg.Scheme)
+	require.Equal(t, "localhost:9000", cfg.Endpoint)
+	require.True(t, cfg.PathStyle)
+}
+
+func TestParseURL_EndpointNoScheme(t *testing.T) {
+	// A bare host:port endpoint (no scheme) must default to https for backward compatibility.
+	// Without this, url.Parse treats the host as the scheme ("localhost:9000" -> scheme "localhost").
+	cfg, err := ParseURL("s3://AKID:SECRET@my-bucket?region=us-east-1&endpoint=localhost:9000")
+	require.Nil(t, err)
+	require.Equal(t, "https", cfg.Scheme)
+	require.Equal(t, "localhost:9000", cfg.Endpoint)
+	require.True(t, cfg.PathStyle)
+	require.Equal(t, "https://localhost:9000/my-bucket", cfg.BucketURL())
+}
+
+func TestParseURL_EndpointNoSchemeHostname(t *testing.T) {
+	// A dotted hostname with a port and no scheme must also default to https
+	// ("minio.example.com:9000" must not become scheme "minio.example.com").
+	cfg, err := ParseURL("s3://AKID:SECRET@my-bucket?region=us-east-1&endpoint=minio.example.com:9000")
+	require.Nil(t, err)
+	require.Equal(t, "https", cfg.Scheme)
+	require.Equal(t, "minio.example.com:9000", cfg.Endpoint)
+	require.Equal(t, "https://minio.example.com:9000/my-bucket", cfg.BucketURL())
+}
+
+func TestParseURL_EndpointTrailingSlash(t *testing.T) {
+	cfg, err := ParseURL("s3://AKID:SECRET@my-bucket?region=us-east-1&endpoint=https://s3.example.com/")
+	require.Nil(t, err)
+	require.Equal(t, "s3.example.com", cfg.Endpoint)
+}
+
+func TestParseURL_NestedPrefix(t *testing.T) {
+	cfg, err := ParseURL("s3://AKID:SECRET@my-bucket/a/b/c?region=us-east-1")
+	require.Nil(t, err)
+	require.Equal(t, "my-bucket", cfg.Bucket)
+	require.Equal(t, "a/b/c", cfg.Prefix)
+}
+
+func TestParseURL_MissingRegion(t *testing.T) {
+	_, err := ParseURL("s3://AKID:SECRET@my-bucket")
+	require.Error(t, err)
+	require.Contains(t, err.Error(), "region")
+}
+
+func TestParseURL_MissingCredentials(t *testing.T) {
+	_, err := ParseURL("s3://my-bucket?region=us-east-1")
+	require.Error(t, err)
+	require.Contains(t, err.Error(), "access key")
+}
+
+func TestParseURL_MissingSecretKey(t *testing.T) {
+	_, err := ParseURL("s3://AKID@my-bucket?region=us-east-1")
+	require.Error(t, err)
+	require.Contains(t, err.Error(), "secret key")
+}
+
+func TestParseURL_WrongScheme(t *testing.T) {
+	_, err := ParseURL("http://AKID:SECRET@my-bucket?region=us-east-1")
+	require.Error(t, err)
+	require.Contains(t, err.Error(), "scheme")
+}
+
+func TestParseURL_EmptyBucket(t *testing.T) {
+	_, err := ParseURL("s3://AKID:SECRET@?region=us-east-1")
+	require.Error(t, err)
+	require.Contains(t, err.Error(), "bucket")
+}
+
+func TestParseURL_DisableHTTP2(t *testing.T) {
+	cfg, err := ParseURL("s3://AKID:SECRET@my-bucket?region=us-east-1&disable_http2=true")
+	require.Nil(t, err)
+	require.True(t, cfg.DisableHTTP2)
+}
+
+func TestParseURL_DisableHTTP2_NotSet(t *testing.T) {
+	cfg, err := ParseURL("s3://AKID:SECRET@my-bucket?region=us-east-1")
+	require.Nil(t, err)
+	require.False(t, cfg.DisableHTTP2)
+}
+
+// --- Unit tests: URL construction ---
+
+func TestConfig_BucketURL_PathStyle(t *testing.T) {
+	c := &Config{Endpoint: "s3.example.com", Bucket: "my-bucket", PathStyle: true}
+	require.Equal(t, "https://s3.example.com/my-bucket", c.BucketURL())
+}
+
+func TestConfig_BucketURL_PathStyle_EndpointHTTP(t *testing.T) {
+	c := &Config{Scheme: "http", Endpoint: "localhost:9000", Bucket: "b", PathStyle: true}
+	require.Equal(t, "http://localhost:9000/b", c.BucketURL())
+}
+
+func TestConfig_BucketURL_VirtualHosted(t *testing.T) {
+	c := &Config{Endpoint: "s3.us-east-1.amazonaws.com", Bucket: "my-bucket", PathStyle: false}
+	require.Equal(t, "https://my-bucket.s3.us-east-1.amazonaws.com", c.BucketURL())
+}
+
+func TestConfig_ObjectURL_PathStyle(t *testing.T) {
+	c := &Config{Endpoint: "s3.example.com", Bucket: "my-bucket", Prefix: "prefix", PathStyle: true}
+	require.Equal(t, "https://s3.example.com/my-bucket/prefix/obj", c.ObjectURL("obj"))
+}
+
+func TestConfig_ObjectURL_VirtualHosted(t *testing.T) {
+	c := &Config{Endpoint: "s3.us-east-1.amazonaws.com", Bucket: "my-bucket", Prefix: "prefix", PathStyle: false}
+	require.Equal(t, "https://my-bucket.s3.us-east-1.amazonaws.com/prefix/obj", c.ObjectURL("obj"))
+}
+
+func TestConfig_HostHeader_PathStyle(t *testing.T) {
+	c := &Config{Endpoint: "s3.example.com", Bucket: "my-bucket", PathStyle: true}
+	require.Equal(t, "s3.example.com", c.HostHeader())
+}
+
+func TestConfig_HostHeader_VirtualHosted(t *testing.T) {
+	c := &Config{Endpoint: "s3.us-east-1.amazonaws.com", Bucket: "my-bucket", PathStyle: false}
+	require.Equal(t, "my-bucket.s3.us-east-1.amazonaws.com", c.HostHeader())
+}
+
+func TestConfig_ObjectKey(t *testing.T) {
+	c := &Config{Prefix: "attachments"}
+	require.Equal(t, "attachments/file123", c.ObjectKey("file123"))
+
+	c2 := &Config{Prefix: ""}
+	require.Equal(t, "file123", c2.ObjectKey("file123"))
+}
+
+func TestConfig_ListPrefix(t *testing.T) {
+	c := &Config{Prefix: "attachments"}
+	require.Equal(t, "attachments/", c.ListPrefix())
+
+	c2 := &Config{Prefix: ""}
+	require.Equal(t, "", c2.ListPrefix())
+}
+
+// --- Integration tests using real S3 ---
+
+func TestClient_PutGetObject(t *testing.T) {
+	client := newTestClient(t)
+	ctx := context.Background()
+
+	// Put
+	err := client.PutObject(ctx, "test-key", strings.NewReader("hello world"), 0)
+	require.Nil(t, err)
+
+	// Get
+	reader, size, err := client.GetObject(ctx, "test-key")
+	require.Nil(t, err)
+	require.Equal(t, int64(11), size)
+	data, err := io.ReadAll(reader)
+	reader.Close()
+	require.Nil(t, err)
+	require.Equal(t, "hello world", string(data))
+}
+
+func TestClient_GetObject_NotFound(t *testing.T) {
+	client := newTestClient(t)
+
+	_, _, err := client.GetObject(context.Background(), "nonexistent")
+	require.Error(t, err)
+}
+
+func TestClient_DeleteObjects(t *testing.T) {
+	client := newTestClient(t)
+	ctx := context.Background()
+
+	// Put several objects
+	for i := 0; i < 5; i++ {
+		err := client.PutObject(ctx, fmt.Sprintf("del-%d", i), bytes.NewReader([]byte("data")), 0)
+		require.Nil(t, err)
+	}
+	waitForCount(t, client, 5)
+
+	// Delete some
+	err := client.DeleteObjects(ctx, []string{"del-1", "del-3"})
+	require.Nil(t, err)
+	waitForCount(t, client, 3)
+
+	// Verify deleted ones are gone
+	_, _, err = client.GetObject(ctx, "del-1")
+	require.Error(t, err)
+	_, _, err = client.GetObject(ctx, "del-3")
+	require.Error(t, err)
+
+	// Verify remaining ones are still there
+	for _, key := range []string{"del-0", "del-2", "del-4"} {
+		reader, _, err := client.GetObject(ctx, key)
+		require.Nil(t, err)
+		reader.Close()
+	}
+}
+
+func TestClient_ListObjects(t *testing.T) {
+	client := newTestClient(t)
+	ctx := context.Background()
+
+	for i := 0; i < 3; i++ {
+		err := client.PutObject(ctx, fmt.Sprintf("list-%d", i), bytes.NewReader([]byte("x")), 0)
+		require.Nil(t, err)
+	}
+	waitForCount(t, client, 3)
+}
+
+func TestClient_ListObjects_Pagination(t *testing.T) {
+	client := newTestClient(t)
+	ctx := context.Background()
+
+	// Create 1010 objects in parallel (5 goroutines)
+	const total = 1010
+	const workers = 5
+	var wg sync.WaitGroup
+	errs := make(chan error, total)
+	for w := 0; w < workers; w++ {
+		wg.Add(1)
+		go func(start int) {
+			defer wg.Done()
+			for i := start; i < total; i += workers {
+				if err := client.PutObject(ctx, fmt.Sprintf("pg-%04d", i), bytes.NewReader([]byte("x")), 0); err != nil {
+					errs <- err
+					return
+				}
+			}
+		}(w)
+	}
+	wg.Wait()
+	close(errs)
+	for err := range errs {
+		require.Nil(t, err)
+	}
+	waitForCount(t, client, total)
+}
+
+func TestClient_PutObject_LargeBody(t *testing.T) {
+	client := newTestClient(t)
+	ctx := context.Background()
+
+	// 1 MB object
+	data := make([]byte, 1024*1024)
+	for i := range data {
+		data[i] = byte(i % 256)
+	}
+	err := client.PutObject(ctx, "large", bytes.NewReader(data), 0)
+	require.Nil(t, err)
+
+	reader, size, err := client.GetObject(ctx, "large")
+	require.Nil(t, err)
+	require.Equal(t, int64(1024*1024), size)
+	got, err := io.ReadAll(reader)
+	reader.Close()
+	require.Nil(t, err)
+	require.Equal(t, data, got)
+}
+
+func TestClient_PutObject_ChunkedUpload(t *testing.T) {
+	client := newTestClient(t)
+	ctx := context.Background()
+
+	// 12 MB object, exceeds 5 MB partSize, triggers multipart upload path
+	data := make([]byte, 12*1024*1024)
+	for i := range data {
+		data[i] = byte(i % 256)
+	}
+	err := client.PutObject(ctx, "multipart", bytes.NewReader(data), 0)
+	require.Nil(t, err)
+
+	reader, size, err := client.GetObject(ctx, "multipart")
+	require.Nil(t, err)
+	require.Equal(t, int64(12*1024*1024), size)
+	got, err := io.ReadAll(reader)
+	reader.Close()
+	require.Nil(t, err)
+	require.Equal(t, data, got)
+}
+
+func TestClient_PutObject_ExactPartSize(t *testing.T) {
+	client := newTestClient(t)
+	ctx := context.Background()
+
+	// Exactly 5 MB (partSize), should use the simple put path (ReadFull succeeds fully)
+	data := make([]byte, 5*1024*1024)
+	for i := range data {
+		data[i] = byte(i % 256)
+	}
+	err := client.PutObject(ctx, "exact", bytes.NewReader(data), 0)
+	require.Nil(t, err)
+
+	reader, size, err := client.GetObject(ctx, "exact")
+	require.Nil(t, err)
+	require.Equal(t, int64(5*1024*1024), size)
+	got, err := io.ReadAll(reader)
+	reader.Close()
+	require.Nil(t, err)
+	require.Equal(t, data, got)
+}
+
+func TestClient_PutObject_StreamingExactLength(t *testing.T) {
+	client := newTestClient(t)
+	ctx := context.Background()
+
+	// untrustedLength matches body exactly — streams directly via putObject
+	err := client.PutObject(ctx, "stream-exact", strings.NewReader("hello world"), 11)
+	require.Nil(t, err)
+
+	reader, size, err := client.GetObject(ctx, "stream-exact")
+	require.Nil(t, err)
+	require.Equal(t, int64(11), size)
+	got, err := io.ReadAll(reader)
+	reader.Close()
+	require.Nil(t, err)
+	require.Equal(t, "hello world", string(got))
+}
+
+func TestClient_PutObject_StreamingBodyLongerThanClaimed(t *testing.T) {
+	client := newTestClient(t)
+	ctx := context.Background()
+
+	// Body has 11 bytes, but we claim 5 — only first 5 bytes should be stored
+	err := client.PutObject(ctx, "stream-long", strings.NewReader("hello world"), 5)
+	require.Nil(t, err)
+
+	reader, size, err := client.GetObject(ctx, "stream-long")
+	require.Nil(t, err)
+	require.Equal(t, int64(5), size)
+	got, err := io.ReadAll(reader)
+	reader.Close()
+	require.Nil(t, err)
+	require.Equal(t, "hello", string(got))
+}
+
+func TestClient_PutObject_StreamingBodyShorterThanClaimed(t *testing.T) {
+	client := newTestClient(t)
+	ctx := context.Background()
+
+	// Body has 5 bytes, but we claim 100 — should fail
+	err := client.PutObject(ctx, "stream-short", strings.NewReader("hello"), 100)
+	require.Error(t, err)
+
+	// Object should not exist
+	_, _, err = client.GetObject(ctx, "stream-short")
+	require.Error(t, err)
+}
+
+func TestClient_PutObject_NestedKey(t *testing.T) {
+	client := newTestClient(t)
+	ctx := context.Background()
+
+	err := client.PutObject(ctx, "deep/nested/prefix/file.txt", strings.NewReader("nested"), 0)
+	require.Nil(t, err)
+
+	reader, _, err := client.GetObject(ctx, "deep/nested/prefix/file.txt")
+	require.Nil(t, err)
+	data, _ := io.ReadAll(reader)
+	reader.Close()
+	require.Equal(t, "nested", string(data))
+}
+
+func newTestClient(t *testing.T) *Client {
+	t.Helper()
+	s3URL := os.Getenv("NTFY_TEST_S3_URL")
+	if s3URL == "" {
+		t.Skip("NTFY_TEST_S3_URL not set")
+	}
+	cfg, err := ParseURL(s3URL)
+	require.Nil(t, err)
+	// Use per-test prefix to isolate objects between tests
+	if cfg.Prefix != "" {
+		cfg.Prefix = cfg.Prefix + "/testpkg-s3/" + t.Name()
+	} else {
+		cfg.Prefix = "testpkg-s3/" + t.Name()
+	}
+	client := New(cfg)
+	deleteAllObjects(t, client)
+	t.Cleanup(func() { deleteAllObjects(t, client) })
+	return client
+}
+
+func deleteAllObjects(t *testing.T, client *Client) {
+	t.Helper()
+	for i := 0; i < 60; i++ {
+		objects, err := client.ListObjectsV2(context.Background())
+		require.Nil(t, err)
+		if len(objects) == 0 {
+			return
+		}
+		keys := make([]string, len(objects))
+		for j, obj := range objects {
+			keys[j] = obj.Key
+		}
+		require.Nil(t, client.DeleteObjects(context.Background(), keys))
+		time.Sleep(500 * time.Millisecond)
+	}
+	t.Fatal("timed out waiting for bucket to be empty")
+}
+
+func waitForCount(t *testing.T, client *Client, expected int) {
+	t.Helper()
+	for i := 0; i < 60; i++ {
+		objects, err := client.ListObjectsV2(context.Background())
+		require.Nil(t, err)
+		if len(objects) == expected {
+			return
+		}
+		time.Sleep(500 * time.Millisecond)
+	}
+	objects, _ := client.ListObjectsV2(context.Background())
+	t.Fatalf("timed out waiting for %d objects, got %d", expected, len(objects))
+}

s3/types.go

@@ -0,0 +1,171 @@
+package s3
+
+import (
+	"encoding/xml"
+	"fmt"
+	"net/http"
+	"net/url"
+	"strings"
+	"time"
+)
+
+// Config holds the parsed fields from an S3 URL. Use ParseURL to create one from a URL string.
+type Config struct {
+	Scheme       string // URL scheme, e.g. "https" or "http"
+	Endpoint     string // host[:port] only, e.g. "s3.us-east-1.amazonaws.com"
+	PathStyle    bool
+	Bucket       string
+	Prefix       string
+	Region       string
+	AccessKey    string
+	SecretKey    string
+	DisableHTTP2 bool         // Force HTTP/1.1 to work around HTTP/2 issues with some S3-compatible providers
+	HTTPClient   *http.Client // if nil, a default client is created (respecting DisableHTTP2)
+}
+
+// BucketURL returns the base URL for bucket-level operations.
+func (c *Config) BucketURL() string {
+	scheme := "https"
+	if c.Scheme != "" {
+		scheme = c.Scheme
+	}
+	if c.PathStyle {
+		return fmt.Sprintf("%s://%s/%s", scheme, c.Endpoint, c.Bucket)
+	}
+	return fmt.Sprintf("%s://%s.%s", scheme, c.Bucket, c.Endpoint)
+}
+
+// HostHeader returns the value for the Host header.
+func (c *Config) HostHeader() string {
+	if c.PathStyle {
+		return c.Endpoint
+	}
+	return c.Bucket + "." + c.Endpoint
+}
+
+// ListPrefix returns the prefix to use in ListObjectsV2 requests,
+// with a trailing slash so that only objects under the prefix directory are returned.
+func (c *Config) ListPrefix() string {
+	if c.Prefix != "" {
+		return c.Prefix + "/"
+	}
+	return ""
+}
+
+// StripPrefix removes the configured prefix from a key returned by ListObjectsV2,
+// so keys match what was passed to PutObject/GetObject/DeleteObjects.
+func (c *Config) StripPrefix(key string) string {
+	if c.Prefix != "" {
+		return strings.TrimPrefix(key, c.Prefix+"/")
+	}
+	return key
+}
+
+// ObjectKey prepends the configured prefix to the given key.
+func (c *Config) ObjectKey(key string) string {
+	if c.Prefix != "" {
+		return c.Prefix + "/" + key
+	}
+	return key
+}
+
+// ObjectURL returns the full URL for an object, automatically prepending the configured prefix.
+func (c *Config) ObjectURL(key string) string {
+	u, _ := url.JoinPath(c.BucketURL(), c.ObjectKey(key))
+	return u
+}
+
+// Object represents an S3 object returned by list operations.
+type Object struct {
+	Key          string
+	Size         int64
+	LastModified time.Time
+}
+
+// errorResponse is returned when S3 responds with a non-2xx status code.
+type errorResponse struct {
+	StatusCode int
+	Code       string `xml:"Code"`
+	Message    string `xml:"Message"`
+	Body       string `xml:"-"` // raw response body
+}
+
+func (e *errorResponse) Error() string {
+	if e.Code != "" {
+		return fmt.Sprintf("s3: %s (HTTP %d): %s", e.Code, e.StatusCode, e.Message)
+	}
+	return fmt.Sprintf("s3: HTTP %d: %s", e.StatusCode, e.Body)
+}
+
+// listObjectsV2Result is the XML response from S3 ListObjectsV2
+type listObjectsV2Result struct {
+	Contents              []*listObject `xml:"Contents"`
+	IsTruncated           bool          `xml:"IsTruncated"`
+	NextContinuationToken string        `xml:"NextContinuationToken"`
+}
+
+type listObject struct {
+	Key          string `xml:"Key"`
+	Size         int64  `xml:"Size"`
+	LastModified string `xml:"LastModified"`
+}
+
+// deleteObjectsRequest is the XML request body for S3 DeleteObjects
+type deleteObjectsRequest struct {
+	XMLName xml.Name        `xml:"Delete"`
+	Quiet   bool            `xml:"Quiet"`
+	Objects []*deleteObject `xml:"Object"`
+}
+
+type deleteObject struct {
+	Key string `xml:"Key"`
+}
+
+// deleteObjectsResult is the XML response from S3 DeleteObjects
+type deleteObjectsResult struct {
+	Errors []*deleteError `xml:"Error"`
+}
+
+type deleteError struct {
+	Key     string `xml:"Key"`
+	Code    string `xml:"Code"`
+	Message string `xml:"Message"`
+}
+
+// listMultipartUploadsResult is the XML response from S3 listMultipartUploads
+type listMultipartUploadsResult struct {
+	Uploads            []*listUpload `xml:"Upload"`
+	IsTruncated        bool          `xml:"IsTruncated"`
+	NextKeyMarker      string        `xml:"NextKeyMarker"`
+	NextUploadIDMarker string        `xml:"NextUploadIdMarker"`
+}
+
+type listUpload struct {
+	Key       string `xml:"Key"`
+	UploadID  string `xml:"UploadId"`
+	Initiated string `xml:"Initiated"`
+}
+
+// multipartUpload represents an in-progress multipart upload returned by listMultipartUploads.
+type multipartUpload struct {
+	Key       string
+	UploadID  string
+	Initiated time.Time
+}
+
+// initiateMultipartUploadResult is the XML response from S3 InitiateMultipartUpload
+type initiateMultipartUploadResult struct {
+	UploadID string `xml:"UploadId"`
+}
+
+// completeMultipartUploadRequest is the XML request body for S3 CompleteMultipartUpload
+type completeMultipartUploadRequest struct {
+	XMLName xml.Name         `xml:"CompleteMultipartUpload"`
+	Parts   []*completedPart `xml:"Part"`
+}
+
+// completedPart represents a successfully uploaded part for CompleteMultipartUpload
+type completedPart struct {
+	PartNumber int    `xml:"PartNumber"`
+	ETag       string `xml:"ETag"`
+}

s3/util.go

@@ -0,0 +1,194 @@
+package s3
+
+import (
+	"crypto/hmac"
+	"crypto/sha256"
+	"encoding/hex"
+	"encoding/xml"
+	"fmt"
+	"io"
+	"net/http"
+	"net/url"
+	"sort"
+	"strconv"
+	"strings"
+)
+
+const (
+	// SHA-256 hash of the empty string, used as the payload hash for bodiless requests
+	emptyPayloadHash = "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855"
+
+	// Sent as the payload hash for streaming uploads where the body is not buffered in memory
+	unsignedPayload = "UNSIGNED-PAYLOAD"
+
+	// maxResponseBytes caps the size of S3 response bodies we read into memory
+	maxResponseBytes = 2 * 1024 * 1024
+
+	// partSize is the size of each part for multipart uploads (5 MB). This is also the threshold
+	// above which PutObject switches from a simple PUT to multipart upload. S3 requires a minimum
+	// part size of 5 MB for all parts except the last.
+	partSize = 5 * 1024 * 1024
+
+	// maxSinglePutSize is the maximum size for a single PUT upload (5 GB).
+	// Objects larger than this must use multipart upload.
+	maxSinglePutSize = 5 * 1024 * 1024 * 1024
+
+	// maxPages is the max number of pages to iterate through when listing objects
+	maxPages = 500
+
+	// maxDeleteBatchSize is the maximum number of keys per S3 DeleteObjects call
+	maxDeleteBatchSize = 1000
+)
+
+// ParseURL parses an S3 URL of the form:
+//
+//	s3://ACCESS_KEY:SECRET_KEY@BUCKET[/PREFIX]?region=REGION[&endpoint=ENDPOINT][&disable_http2=true]
+//
+// When endpoint is specified, path-style addressing is enabled automatically.
+// When disable_http2=true is set, the client forces HTTP/1.1 to work around
+// HTTP/2 stream errors with some S3-compatible providers (e.g. DigitalOcean Spaces).
+func ParseURL(s3URL string) (*Config, error) {
+	u, err := url.Parse(s3URL)
+	if err != nil {
+		return nil, fmt.Errorf("s3: invalid URL: %w", err)
+	}
+	if u.Scheme != "s3" {
+		return nil, fmt.Errorf("s3: URL scheme must be 's3', got '%s'", u.Scheme)
+	}
+	if u.Host == "" {
+		return nil, fmt.Errorf("s3: bucket name must be specified as host")
+	}
+	bucket := u.Host
+	prefix := strings.TrimPrefix(u.Path, "/")
+	accessKey := u.User.Username()
+	secretKey, _ := u.User.Password()
+	if accessKey == "" || secretKey == "" {
+		return nil, fmt.Errorf("s3: access key and secret key must be specified in URL")
+	}
+	region := u.Query().Get("region")
+	if region == "" {
+		return nil, fmt.Errorf("s3: region query parameter is required")
+	}
+	endpointParam := u.Query().Get("endpoint")
+	var scheme string
+	var endpoint string
+	var pathStyle bool
+	if endpointParam != "" {
+		// Custom endpoint: derive the scheme from the prefix and strip it to extract host[:port].
+		// Default to https for backward compatibility, including bare "host:port" endpoints (no
+		// scheme) -- url.Parse would otherwise misread the host before the port colon as the scheme.
+		scheme = "https"
+		if strings.HasPrefix(endpointParam, "http://") {
+			scheme = "http"
+		}
+		ep := strings.TrimRight(endpointParam, "/")
+		ep = strings.TrimPrefix(ep, "https://")
+		ep = strings.TrimPrefix(ep, "http://")
+		endpoint = ep
+		pathStyle = true
+	} else {
+		scheme = "https"
+		endpoint = fmt.Sprintf("s3.%s.amazonaws.com", region)
+		pathStyle = false
+	}
+	disableHTTP2, _ := strconv.ParseBool(u.Query().Get("disable_http2"))
+	return &Config{
+		Scheme:       scheme,
+		Endpoint:     endpoint,
+		PathStyle:    pathStyle,
+		Bucket:       bucket,
+		Prefix:       prefix,
+		Region:       region,
+		AccessKey:    accessKey,
+		SecretKey:    secretKey,
+		DisableHTTP2: disableHTTP2,
+	}, nil
+}
+
+// parseError reads an S3 error response and returns an *errorResponse.
+func parseError(resp *http.Response) error {
+	body, err := io.ReadAll(io.LimitReader(resp.Body, maxResponseBytes))
+	if err != nil {
+		return fmt.Errorf("error reading S3 error response: %w", err)
+	}
+	return parseErrorFromBytes(resp.StatusCode, body)
+}
+
+func parseErrorFromBytes(statusCode int, body []byte) error {
+	errResp := &errorResponse{
+		StatusCode: statusCode,
+		Body:       string(body),
+	}
+	// Try to parse XML error; if it fails, we still have StatusCode and Body
+	_ = xml.Unmarshal(body, errResp)
+	return errResp
+}
+
+// canonicalURI returns the URI-encoded path for the canonical request. Each path segment is
+// percent-encoded per RFC 3986; forward slashes are preserved.
+func canonicalURI(u *url.URL) string {
+	p := u.Path
+	if p == "" {
+		return "/"
+	}
+	segments := strings.Split(p, "/")
+	for i, seg := range segments {
+		segments[i] = uriEncode(seg)
+	}
+	return strings.Join(segments, "/")
+}
+
+// canonicalQueryString builds the query string for the canonical request. Keys and values
+// are URI-encoded per RFC 3986 (using %20, not +) and sorted lexically by key.
+func canonicalQueryString(values url.Values) string {
+	if len(values) == 0 {
+		return ""
+	}
+	keys := make([]string, 0, len(values))
+	for k := range values {
+		keys = append(keys, k)
+	}
+	sort.Strings(keys)
+	var pairs []string
+	for _, k := range keys {
+		ek := uriEncode(k)
+		vs := make([]string, len(values[k]))
+		copy(vs, values[k])
+		sort.Strings(vs)
+		for _, v := range vs {
+			pairs = append(pairs, ek+"="+uriEncode(v))
+		}
+	}
+	return strings.Join(pairs, "&")
+}
+
+// uriEncode percent-encodes a string per RFC 3986, encoding everything except unreserved
+// characters (A-Z a-z 0-9 - _ . ~).
+func uriEncode(s string) string {
+	var buf strings.Builder
+	for i := 0; i < len(s); i++ {
+		b := s[i]
+		if (b >= 'A' && b <= 'Z') || (b >= 'a' && b <= 'z') || (b >= '0' && b <= '9') ||
+			b == '-' || b == '_' || b == '.' || b == '~' {
+			buf.WriteByte(b)
+		} else {
+			fmt.Fprintf(&buf, "%%%02X", b)
+		}
+	}
+	return buf.String()
+}
+
+func isHTTPSuccess(resp *http.Response) bool {
+	return resp.StatusCode/100 == 2
+}
+
+func sha256Hex(data []byte) string {
+	h := sha256.Sum256(data)
+	return hex.EncodeToString(h[:])
+}
+
+func hmacSHA256(key, data []byte) []byte {
+	h := hmac.New(sha256.New, key)
+	h.Write(data)
+	return h.Sum(nil)
+}

s3/util_test.go

@@ -0,0 +1,181 @@
+package s3
+
+import (
+	"net/http"
+	"net/url"
+	"testing"
+
+	"github.com/stretchr/testify/require"
+)
+
+func TestURIEncode(t *testing.T) {
+	// Unreserved characters are not encoded
+	require.Equal(t, "abcdefghijklmnopqrstuvwxyz", uriEncode("abcdefghijklmnopqrstuvwxyz"))
+	require.Equal(t, "ABCDEFGHIJKLMNOPQRSTUVWXYZ", uriEncode("ABCDEFGHIJKLMNOPQRSTUVWXYZ"))
+	require.Equal(t, "0123456789", uriEncode("0123456789"))
+	require.Equal(t, "-_.~", uriEncode("-_.~"))
+
+	// Spaces use %20, not +
+	require.Equal(t, "hello%20world", uriEncode("hello world"))
+
+	// Slashes are encoded (canonicalURI handles slash splitting separately)
+	require.Equal(t, "a%2Fb", uriEncode("a/b"))
+
+	// Special characters
+	require.Equal(t, "%2B", uriEncode("+"))
+	require.Equal(t, "%3D", uriEncode("="))
+	require.Equal(t, "%26", uriEncode("&"))
+	require.Equal(t, "%40", uriEncode("@"))
+	require.Equal(t, "%23", uriEncode("#"))
+
+	// Mixed
+	require.Equal(t, "test~file-name_1.txt", uriEncode("test~file-name_1.txt"))
+	require.Equal(t, "key%20with%20spaces%2Fand%2Fslashes", uriEncode("key with spaces/and/slashes"))
+
+	// Empty string
+	require.Equal(t, "", uriEncode(""))
+}
+
+func TestCanonicalURI(t *testing.T) {
+	// Simple path
+	u, _ := url.Parse("https://example.com/bucket/key")
+	require.Equal(t, "/bucket/key", canonicalURI(u))
+
+	// Root path
+	u, _ = url.Parse("https://example.com/")
+	require.Equal(t, "/", canonicalURI(u))
+
+	// Empty path
+	u, _ = url.Parse("https://example.com")
+	require.Equal(t, "/", canonicalURI(u))
+
+	// Path with special characters
+	u, _ = url.Parse("https://example.com/bucket/key%20with%20spaces")
+	require.Equal(t, "/bucket/key%20with%20spaces", canonicalURI(u))
+
+	// Nested path
+	u, _ = url.Parse("https://example.com/bucket/a/b/c/file.txt")
+	require.Equal(t, "/bucket/a/b/c/file.txt", canonicalURI(u))
+}
+
+func TestCanonicalQueryString(t *testing.T) {
+	// Multiple keys sorted alphabetically
+	vals := url.Values{
+		"prefix":    {"test/"},
+		"list-type": {"2"},
+	}
+	require.Equal(t, "list-type=2&prefix=test%2F", canonicalQueryString(vals))
+
+	// Empty values
+	require.Equal(t, "", canonicalQueryString(url.Values{}))
+
+	// Single key
+	require.Equal(t, "key=value", canonicalQueryString(url.Values{"key": {"value"}}))
+
+	// Key with multiple values (sorted)
+	vals = url.Values{"key": {"b", "a"}}
+	require.Equal(t, "key=a&key=b", canonicalQueryString(vals))
+
+	// Keys requiring encoding
+	vals = url.Values{"continuation-token": {"abc+def"}}
+	require.Equal(t, "continuation-token=abc%2Bdef", canonicalQueryString(vals))
+}
+
+func TestSHA256Hex(t *testing.T) {
+	// SHA-256 of empty string
+	require.Equal(t, emptyPayloadHash, sha256Hex([]byte("")))
+
+	// SHA-256 of known value
+	require.Equal(t, "2cf24dba5fb0a30e26e83b2ac5b9e29e1b161e5c1fa7425e73043362938b9824", sha256Hex([]byte("hello")))
+}
+
+func TestHmacSHA256(t *testing.T) {
+	// Known test vector: HMAC-SHA256("key", "message")
+	result := hmacSHA256([]byte("key"), []byte("message"))
+	require.Len(t, result, 32) // SHA-256 produces 32 bytes
+	require.NotEqual(t, make([]byte, 32), result)
+
+	// Same inputs should produce same output
+	result2 := hmacSHA256([]byte("key"), []byte("message"))
+	require.Equal(t, result, result2)
+
+	// Different inputs should produce different output
+	result3 := hmacSHA256([]byte("different-key"), []byte("message"))
+	require.NotEqual(t, result, result3)
+}
+
+func TestSignV4_SetsRequiredHeaders(t *testing.T) {
+	c := &Client{config: &Config{
+		AccessKey: "AKID",
+		SecretKey: "SECRET",
+		Region:    "us-east-1",
+		Endpoint:  "s3.us-east-1.amazonaws.com",
+		Bucket:    "my-bucket",
+	}}
+
+	req, _ := http.NewRequest(http.MethodGet, "https://my-bucket.s3.us-east-1.amazonaws.com/test-key", nil)
+	c.signV4(req, emptyPayloadHash)
+
+	// All required SigV4 headers must be set
+	require.NotEmpty(t, req.Header.Get("Host"))
+	require.NotEmpty(t, req.Header.Get("X-Amz-Date"))
+	require.Equal(t, emptyPayloadHash, req.Header.Get("X-Amz-Content-Sha256"))
+
+	// Authorization header must have correct format
+	auth := req.Header.Get("Authorization")
+	require.Contains(t, auth, "AWS4-HMAC-SHA256")
+	require.Contains(t, auth, "Credential=AKID/")
+	require.Contains(t, auth, "/us-east-1/s3/aws4_request")
+	require.Contains(t, auth, "SignedHeaders=")
+	require.Contains(t, auth, "Signature=")
+}
+
+func TestSignV4_UnsignedPayload(t *testing.T) {
+	c := &Client{config: &Config{
+		AccessKey: "AKID",
+		SecretKey: "SECRET",
+		Region:    "us-east-1",
+		Endpoint:  "s3.us-east-1.amazonaws.com",
+		Bucket:    "my-bucket",
+	}}
+
+	req, _ := http.NewRequest(http.MethodPut, "https://my-bucket.s3.us-east-1.amazonaws.com/test-key", nil)
+	c.signV4(req, unsignedPayload)
+
+	require.Equal(t, unsignedPayload, req.Header.Get("X-Amz-Content-Sha256"))
+}
+
+func TestSignV4_DifferentRegions(t *testing.T) {
+	c1 := &Client{config: &Config{AccessKey: "AKID", SecretKey: "SECRET", Region: "us-east-1", Endpoint: "s3.us-east-1.amazonaws.com", Bucket: "b"}}
+	c2 := &Client{config: &Config{AccessKey: "AKID", SecretKey: "SECRET", Region: "eu-west-1", Endpoint: "s3.eu-west-1.amazonaws.com", Bucket: "b"}}
+
+	req1, _ := http.NewRequest(http.MethodGet, "https://b.s3.us-east-1.amazonaws.com/key", nil)
+	c1.signV4(req1, emptyPayloadHash)
+
+	req2, _ := http.NewRequest(http.MethodGet, "https://b.s3.eu-west-1.amazonaws.com/key", nil)
+	c2.signV4(req2, emptyPayloadHash)
+
+	// Different regions should produce different signatures
+	require.NotEqual(t, req1.Header.Get("Authorization"), req2.Header.Get("Authorization"))
+}
+
+func TestParseError_XMLResponse(t *testing.T) {
+	xmlBody := []byte(`<?xml version="1.0" encoding="UTF-8"?><Error><Code>NoSuchKey</Code><Message>The specified key does not exist.</Message></Error>`)
+	err := parseErrorFromBytes(404, xmlBody)
+
+	var errResp *errorResponse
+	require.ErrorAs(t, err, &errResp)
+	require.Equal(t, 404, errResp.StatusCode)
+	require.Equal(t, "NoSuchKey", errResp.Code)
+	require.Equal(t, "The specified key does not exist.", errResp.Message)
+}
+
+func TestParseError_NonXMLResponse(t *testing.T) {
+	err := parseErrorFromBytes(500, []byte("internal server error"))
+
+	var errResp *errorResponse
+	require.ErrorAs(t, err, &errResp)
+	require.Equal(t, 500, errResp.StatusCode)
+	require.Equal(t, "", errResp.Code) // XML parsing failed, no code
+	require.Contains(t, errResp.Body, "internal server error")
+}

scripts/emoji-convert.sh

@@ -11,11 +11,20 @@ if [ -z "$1" ]; then
     echo "Example:"
     echo "  $0 emoji-converted.json"
     echo "  $0 $ROOTDIR/web/src/app/emojis.js"
+    echo "  $0 $ROOTDIR/web/src/app/emojisMapped.js"
     echo "  $0 $ROOTDIR/docs/emojis.md"
     exit 1
 fi
 
-if [[ "$1" == *.js ]]; then
+if [[ "$1" == *emojisMapped.js ]]; then
+  # Small alias -> emoji lookup used to render tags as emojis. Precomputed so the full
+  # emoji dataset (emojis.js) stays out of the main web bundle.
+  echo -n "// This file is generated by scripts/emoji-convert.sh -- alias to emoji lookup
+// Original data source: https://github.com/github/gemoji/blob/master/db/emoji.json
+export default " > "$1"
+    cat "$SCRIPTDIR/emoji.json" | jq -jc '[.[] | .aliases[] as $a | {key: $a, value: .emoji}] | from_entries' >> "$1"
+    echo ";" >> "$1"
+elif [[ "$1" == *.js ]]; then
   echo -n "// This file is generated by scripts/emoji-convert.sh to reduce the size
 // Original data source: https://github.com/github/gemoji/blob/master/db/emoji.json
 export const rawEmojis = " > "$1"

server/actions.go

@@ -4,10 +4,12 @@ import (
 	"encoding/json"
 	"errors"
 	"fmt"
-	"heckel.io/ntfy/v2/util"
 	"regexp"
 	"strings"
 	"unicode/utf8"
+
+	"heckel.io/ntfy/v2/model"
+	"heckel.io/ntfy/v2/util"
 )
 
 const (
@@ -20,12 +22,14 @@ const (
 	actionView      = "view"
 	actionBroadcast = "broadcast"
 	actionHTTP      = "http"
+	actionCopy      = "copy"
 )
 
 var (
-	actionsAll      = []string{actionView, actionBroadcast, actionHTTP}
-	actionsWithURL  = []string{actionView, actionHTTP}
-	actionsKeyRegex = regexp.MustCompile(`^([-.\w]+)\s*=\s*`)
+	actionsAll       = []string{actionView, actionBroadcast, actionHTTP, actionCopy}
+	actionsWithURL   = []string{actionView, actionHTTP} // Must be distinct from actionsWithValue, see populateAction()
+	actionsWithValue = []string{actionCopy}             // Must be distinct from actionsWithURL, see populateAction()
+	actionsKeyRegex  = regexp.MustCompile(`^([-.\w]+)\s*=\s*`)
 )
 
 type actionParser struct {
@@ -36,7 +40,7 @@ type actionParser struct {
 // parseActions parses the actions string as described in https://ntfy.sh/docs/publish/#action-buttons.
 // It supports both a JSON representation (if the string begins with "[", see parseActionsFromJSON),
 // and the "simple" format, which is more human-readable, but harder to parse (see parseActionsFromSimple).
-func parseActions(s string) (actions []*action, err error) {
+func parseActions(s string) (actions []*model.Action, err error) {
 	// Parse JSON or simple format
 	s = strings.TrimSpace(s)
 	if strings.HasPrefix(s, "[") {
@@ -61,11 +65,13 @@ func parseActions(s string) (actions []*action, err error) {
 	}
 	for _, action := range actions {
 		if !util.Contains(actionsAll, action.Action) {
-			return nil, fmt.Errorf("parameter 'action' cannot be '%s', valid values are 'view', 'broadcast' and 'http'", action.Action)
+			return nil, fmt.Errorf("parameter 'action' cannot be '%s', valid values are 'view', 'broadcast', 'http' and 'copy'", action.Action)
 		} else if action.Label == "" {
 			return nil, fmt.Errorf("parameter 'label' is required")
 		} else if util.Contains(actionsWithURL, action.Action) && action.URL == "" {
 			return nil, fmt.Errorf("parameter 'url' is required for action '%s'", action.Action)
+		} else if util.Contains(actionsWithValue, action.Action) && action.Value == "" {
+			return nil, fmt.Errorf("parameter 'value' is required for action '%s'", action.Action)
 		} else if action.Action == actionHTTP && util.Contains([]string{"GET", "HEAD"}, action.Method) && action.Body != "" {
 			return nil, fmt.Errorf("parameter 'body' cannot be set if method is %s", action.Method)
 		}
@@ -75,8 +81,8 @@ func parseActions(s string) (actions []*action, err error) {
 }
 
 // parseActionsFromJSON converts a JSON array into an array of actions
-func parseActionsFromJSON(s string) ([]*action, error) {
-	actions := make([]*action, 0)
+func parseActionsFromJSON(s string) ([]*model.Action, error) {
+	actions := make([]*model.Action, 0)
 	if err := json.Unmarshal([]byte(s), &actions); err != nil {
 		return nil, fmt.Errorf("JSON error: %w", err)
 	}
@@ -102,7 +108,7 @@ func parseActionsFromJSON(s string) ([]*action, error) {
 //	https://github.com/adampresley/sample-ini-parser/blob/master/services/lexer/lexer/Lexer.go
 //	https://github.com/benbjohnson/sql-parser/blob/master/scanner.go
 //	https://blog.gopheracademy.com/advent-2014/parsers-lexers/
-func parseActionsFromSimple(s string) ([]*action, error) {
+func parseActionsFromSimple(s string) ([]*model.Action, error) {
 	if !utf8.ValidString(s) {
 		return nil, errors.New("invalid utf-8 string")
 	}
@@ -114,8 +120,8 @@ func parseActionsFromSimple(s string) ([]*action, error) {
 }
 
 // Parse loops trough parseAction() until the end of the string is reached
-func (p *actionParser) Parse() ([]*action, error) {
-	actions := make([]*action, 0)
+func (p *actionParser) Parse() ([]*model.Action, error) {
+	actions := make([]*model.Action, 0)
 	for !p.eof() {
 		a, err := p.parseAction()
 		if err != nil {
@@ -129,8 +135,8 @@ func (p *actionParser) Parse() ([]*action, error) {
 // parseAction parses the individual sections of an action using parseSection into key/value pairs,
 // and then uses populateAction to interpret the keys/values. The function terminates
 // when EOF or ";" is reached.
-func (p *actionParser) parseAction() (*action, error) {
-	a := newAction()
+func (p *actionParser) parseAction() (*model.Action, error) {
+	a := model.NewAction()
 	section := 0
 	for {
 		key, value, last, err := p.parseSection()
@@ -150,7 +156,7 @@ func (p *actionParser) parseAction() (*action, error) {
 
 // populateAction is the "business logic" of the parser. It applies the key/value
 // pair to the action instance.
-func populateAction(newAction *action, section int, key, value string) error {
+func populateAction(newAction *model.Action, section int, key, value string) error {
 	// Auto-expand keys based on their index
 	if key == "" && section == 0 {
 		key = "action"
@@ -158,6 +164,8 @@ func populateAction(newAction *action, section int, key, value string) error {
 		key = "label"
 	} else if key == "" && section == 2 && util.Contains(actionsWithURL, newAction.Action) {
 		key = "url"
+	} else if key == "" && section == 2 && util.Contains(actionsWithValue, newAction.Action) {
+		key = "value"
 	}
 
 	// Validate
@@ -188,6 +196,8 @@ func populateAction(newAction *action, section int, key, value string) error {
 			newAction.Method = value
 		case "body":
 			newAction.Body = value
+		case "value":
+			newAction.Value = value
 		case "intent":
 			newAction.Intent = value
 		default:

server/actions_test.go

@@ -1,8 +1,9 @@
 package server
 
 import (
-	"github.com/stretchr/testify/require"
 	"testing"
+
+	"github.com/stretchr/testify/require"
 )
 
 func TestParseActions(t *testing.T) {
@@ -132,6 +133,44 @@ func TestParseActions(t *testing.T) {
 	require.Equal(t, `https://x.org`, actions[1].URL)
 	require.Equal(t, true, actions[1].Clear)
 
+	// Copy action (simple format)
+	actions, err = parseActions("copy, Copy code, 1234")
+	require.Nil(t, err)
+	require.Equal(t, 1, len(actions))
+	require.Equal(t, "copy", actions[0].Action)
+	require.Equal(t, "Copy code", actions[0].Label)
+	require.Equal(t, "1234", actions[0].Value)
+
+	// Copy action (JSON)
+	actions, err = parseActions(`[{"action":"copy","label":"Copy OTP","value":"567890"}]`)
+	require.Nil(t, err)
+	require.Equal(t, 1, len(actions))
+	require.Equal(t, "copy", actions[0].Action)
+	require.Equal(t, "Copy OTP", actions[0].Label)
+	require.Equal(t, "567890", actions[0].Value)
+
+	// Copy action with clear
+	actions, err = parseActions("copy, Copy code, 1234, clear=true")
+	require.Nil(t, err)
+	require.Equal(t, 1, len(actions))
+	require.Equal(t, "copy", actions[0].Action)
+	require.Equal(t, "Copy code", actions[0].Label)
+	require.Equal(t, "1234", actions[0].Value)
+	require.Equal(t, true, actions[0].Clear)
+
+	// Copy action with explicit value key
+	actions, err = parseActions("action=copy, label=Copy token, clear=true, value=abc-123-def")
+	require.Nil(t, err)
+	require.Equal(t, 1, len(actions))
+	require.Equal(t, "copy", actions[0].Action)
+	require.Equal(t, "Copy token", actions[0].Label)
+	require.Equal(t, "abc-123-def", actions[0].Value)
+	require.True(t, actions[0].Clear)
+
+	// Copy action without value (error)
+	_, err = parseActions("copy, Copy code")
+	require.EqualError(t, err, "parameter 'value' is required for action 'copy'")
+
 	// Invalid syntax
 	_, err = parseActions(`label="Out of order!" x, action="http", url=http://example.com`)
 	require.EqualError(t, err, "unexpected character 'x' at position 22")
@@ -146,7 +185,7 @@ func TestParseActions(t *testing.T) {
 	require.EqualError(t, err, "term 'what is this anyway' unknown")
 
 	_, err = parseActions(`fdsfdsf`)
-	require.EqualError(t, err, "parameter 'action' cannot be 'fdsfdsf', valid values are 'view', 'broadcast' and 'http'")
+	require.EqualError(t, err, "parameter 'action' cannot be 'fdsfdsf', valid values are 'view', 'broadcast', 'http' and 'copy'")
 
 	_, err = parseActions(`aaa=a, "bbb, 'ccc, ddd, eee "`)
 	require.EqualError(t, err, "key 'aaa' unknown")
@@ -173,7 +212,7 @@ func TestParseActions(t *testing.T) {
 	require.EqualError(t, err, "JSON error: invalid character 'i' looking for beginning of value")
 
 	_, err = parseActions(`[ { "some": "object" } ]`)
-	require.EqualError(t, err, "parameter 'action' cannot be '', valid values are 'view', 'broadcast' and 'http'")
+	require.EqualError(t, err, "parameter 'action' cannot be '', valid values are 'view', 'broadcast', 'http' and 'copy'")
 
 	_, err = parseActions("\x00\x01\xFFx\xFE")
 	require.EqualError(t, err, "invalid utf-8 string")

server/config.go

@@ -20,6 +20,7 @@ const (
 	DefaultCacheBatchTimeout                    = time.Duration(0)
 	DefaultKeepaliveInterval                    = 45 * time.Second // Not too frequently to save battery (Android read timeout used to be 77s!)
 	DefaultManagerInterval                      = time.Minute
+	DefaultManagerBatchSize                     = 30000
 	DefaultDelayedSenderInterval                = 10 * time.Second
 	DefaultMessageDelayMin                      = 10 * time.Second
 	DefaultMessageDelayMax                      = 3 * 24 * time.Hour
@@ -46,11 +47,13 @@ const (
 // - total topic limit: max number of topics overall
 // - various attachment limits
 const (
-	DefaultMessageSizeLimit         = 4096 // Bytes; note that FCM/APNS have a limit of ~4 KB for the entire message
-	DefaultTotalTopicLimit          = 15000
-	DefaultAttachmentTotalSizeLimit = int64(5 * 1024 * 1024 * 1024) // 5 GB
-	DefaultAttachmentFileSizeLimit  = int64(15 * 1024 * 1024)       // 15 MB
-	DefaultAttachmentExpiryDuration = 3 * time.Hour
+	DefaultMessageSizeLimit            = 4096 // Bytes; note that FCM/APNS have a limit of ~4 KB for the entire message
+	DefaultTotalTopicLimit             = 15000
+	DefaultAttachmentTotalSizeLimit    = int64(5 * 1024 * 1024 * 1024) // 5 GB
+	DefaultAttachmentFileSizeLimit     = int64(15 * 1024 * 1024)       // 15 MB
+	DefaultAttachmentExpiryDuration    = 3 * time.Hour
+	DefaultAttachmentOrphanGracePeriod = time.Hour // Don't delete orphaned objects younger than this to avoid races with in-flight uploads
+
 )
 
 // Defines all per-visitor limits
@@ -66,7 +69,9 @@ const (
 	DefaultVisitorMessageDailyLimit             = 0
 	DefaultVisitorEmailLimitBurst               = 16
 	DefaultVisitorEmailLimitReplenish           = time.Hour
-	DefaultVisitorAccountCreationLimitBurst     = 3
+	DefaultVisitorTopicCreationLimitBurst       = 100
+	DefaultVisitorTopicCreationLimitReplenish   = time.Minute
+	DefaultVisitorAccountCreationLimitBurst     = 6 // Shared by signup and password-reset requests (same per-visitor bucket)
 	DefaultVisitorAccountCreationLimitReplenish = 24 * time.Hour
 	DefaultVisitorAuthFailureLimitBurst         = 30
 	DefaultVisitorAuthFailureLimitReplenish     = time.Minute
@@ -95,6 +100,8 @@ type Config struct {
 	ListenUnixMode                       fs.FileMode
 	KeyFile                              string
 	CertFile                             string
+	DatabaseURL                          string   // PostgreSQL connection string (e.g. "postgres://user:pass@host:5432/ntfy")
+	DatabaseReplicaURLs                  []string // PostgreSQL read replica connection strings
 	FirebaseKeyFile                      string
 	CacheFile                            string
 	CacheDuration                        time.Duration
@@ -109,13 +116,17 @@ type Config struct {
 	AuthTokens                           map[string][]*user.Token
 	AuthBcryptCost                       int
 	AuthStatsQueueWriterInterval         time.Duration
+	AuthAccessCacheEnabled               bool          // Enables the in-memory ACL cache (high volume servers only)
+	AuthAccessCacheReloadInterval        time.Duration // Reload interval for access cache, relevant for ACL writes from CLI
 	AttachmentCacheDir                   string
 	AttachmentTotalSizeLimit             int64
 	AttachmentFileSizeLimit              int64
 	AttachmentExpiryDuration             time.Duration
+	AttachmentOrphanGracePeriod          time.Duration
 	TemplateDir                          string // Directory to load named templates from
 	KeepaliveInterval                    time.Duration
 	ManagerInterval                      time.Duration
+	ManagerBatchSize                     int
 	DisallowedTopics                     []string
 	WebRoot                              string // empty to disable
 	DelayedSenderInterval                time.Duration
@@ -128,6 +139,7 @@ type Config struct {
 	SMTPSenderUser                       string
 	SMTPSenderPass                       string
 	SMTPSenderFrom                       string
+	SMTPSenderVerify                     bool
 	SMTPServerListen                     string
 	SMTPServerDomain                     string
 	SMTPServerAddrPrefix                 string
@@ -155,6 +167,8 @@ type Config struct {
 	VisitorMessageDailyLimit             int
 	VisitorEmailLimitBurst               int
 	VisitorEmailLimitReplenish           time.Duration
+	VisitorTopicCreationLimitBurst       int           // Burst of new topic creations per visitor
+	VisitorTopicCreationLimitReplenish   time.Duration // Interval at which topic-creation tokens are refilled
 	VisitorAccountCreationLimitBurst     int
 	VisitorAccountCreationLimitReplenish time.Duration
 	VisitorAuthFailureLimitBurst         int
@@ -199,6 +213,7 @@ func NewConfig() *Config {
 		ListenUnixMode:                       0,
 		KeyFile:                              "",
 		CertFile:                             "",
+		DatabaseURL:                          "",
 		FirebaseKeyFile:                      "",
 		CacheFile:                            "",
 		CacheDuration:                        DefaultCacheDuration,
@@ -210,13 +225,17 @@ func NewConfig() *Config {
 		AuthDefault:                          user.PermissionReadWrite,
 		AuthBcryptCost:                       user.DefaultUserPasswordBcryptCost,
 		AuthStatsQueueWriterInterval:         user.DefaultUserStatsQueueWriterInterval,
+		AuthAccessCacheEnabled:               user.DefaultAccessCacheEnabled,
+		AuthAccessCacheReloadInterval:        user.DefaultAccessCacheReloadInterval,
 		AttachmentCacheDir:                   "",
 		AttachmentTotalSizeLimit:             DefaultAttachmentTotalSizeLimit,
 		AttachmentFileSizeLimit:              DefaultAttachmentFileSizeLimit,
 		AttachmentExpiryDuration:             DefaultAttachmentExpiryDuration,
+		AttachmentOrphanGracePeriod:          DefaultAttachmentOrphanGracePeriod,
 		TemplateDir:                          DefaultTemplateDir,
 		KeepaliveInterval:                    DefaultKeepaliveInterval,
 		ManagerInterval:                      DefaultManagerInterval,
+		ManagerBatchSize:                     DefaultManagerBatchSize,
 		DisallowedTopics:                     DefaultDisallowedTopics,
 		WebRoot:                              "/",
 		DelayedSenderInterval:                DefaultDelayedSenderInterval,
@@ -229,6 +248,7 @@ func NewConfig() *Config {
 		SMTPSenderUser:                       "",
 		SMTPSenderPass:                       "",
 		SMTPSenderFrom:                       "",
+		SMTPSenderVerify:                     false,
 		SMTPServerListen:                     "",
 		SMTPServerDomain:                     "",
 		SMTPServerAddrPrefix:                 "",
@@ -254,6 +274,8 @@ func NewConfig() *Config {
 		VisitorMessageDailyLimit:             DefaultVisitorMessageDailyLimit,
 		VisitorEmailLimitBurst:               DefaultVisitorEmailLimitBurst,
 		VisitorEmailLimitReplenish:           DefaultVisitorEmailLimitReplenish,
+		VisitorTopicCreationLimitBurst:       DefaultVisitorTopicCreationLimitBurst,
+		VisitorTopicCreationLimitReplenish:   DefaultVisitorTopicCreationLimitReplenish,
 		VisitorAccountCreationLimitBurst:     DefaultVisitorAccountCreationLimitBurst,
 		VisitorAccountCreationLimitReplenish: DefaultVisitorAccountCreationLimitReplenish,
 		VisitorAuthFailureLimitBurst:         DefaultVisitorAuthFailureLimitBurst,
@@ -280,6 +302,7 @@ func NewConfig() *Config {
 		WebPushExpiryWarningDuration:         DefaultWebPushExpiryWarningDuration,
 		BuildVersion:                         "",
 		BuildDate:                            "",
+		BuildCommit:                          "",
 	}
 }
 

server/errors.go

@@ -78,6 +78,21 @@ func (e errHTTP) clone() errHTTP {
 	}
 }
 
+// errWebSocketPostUpgrade is a wrapper error indicating an error occurred after the WebSocket
+// upgrade completed (i.e., the connection was hijacked). This is used to avoid calling
+// WriteHeader on hijacked connections, which causes log spam.
+type errWebSocketPostUpgrade struct {
+	err error
+}
+
+func (e *errWebSocketPostUpgrade) Error() string {
+	return e.err.Error()
+}
+
+func (e *errWebSocketPostUpgrade) Unwrap() error {
+	return e.err
+}
+
 var (
 	errHTTPBadRequest                                = &errHTTP{40000, http.StatusBadRequest, "invalid request", "", nil}
 	errHTTPBadRequestEmailDisabled                   = &errHTTP{40001, http.StatusBadRequest, "e-mail notifications are not enabled", "https://ntfy.sh/docs/config/#e-mail-notifications", nil}
@@ -127,6 +142,11 @@ var (
 	errHTTPBadRequestTemplateFileNotFound            = &errHTTP{40047, http.StatusBadRequest, "invalid request: template file not found", "https://ntfy.sh/docs/publish/#message-templating", nil}
 	errHTTPBadRequestTemplateFileInvalid             = &errHTTP{40048, http.StatusBadRequest, "invalid request: template file invalid", "https://ntfy.sh/docs/publish/#message-templating", nil}
 	errHTTPBadRequestSequenceIDInvalid               = &errHTTP{40049, http.StatusBadRequest, "invalid request: sequence ID invalid", "https://ntfy.sh/docs/publish/#updating-deleting-notifications", nil}
+	errHTTPBadRequestEmailAddressInvalid             = &errHTTP{40050, http.StatusBadRequest, "invalid request: invalid e-mail address", "https://ntfy.sh/docs/publish/#e-mail-notifications", nil}
+	errHTTPBadRequestEmailVerificationLinkInvalid    = &errHTTP{40051, http.StatusBadRequest, "invalid request: email verification link invalid or expired", "", nil}
+	errHTTPBadRequestEmailAddressNotVerified         = &errHTTP{40052, http.StatusBadRequest, "invalid request: email address not verified", "https://ntfy.sh/docs/publish/#e-mail-notifications", nil}
+	errHTTPBadRequestAnonymousEmailNotAllowed        = &errHTTP{40053, http.StatusBadRequest, "invalid request: anonymous email sending is not allowed", "https://ntfy.sh/docs/publish/#e-mail-notifications", nil}
+	errHTTPBadRequestResetLinkInvalid                = &errHTTP{40054, http.StatusBadRequest, "invalid request: password reset link invalid or expired", "", nil}
 	errHTTPNotFound                                  = &errHTTP{40401, http.StatusNotFound, "page not found", "", nil}
 	errHTTPUnauthorized                              = &errHTTP{40101, http.StatusUnauthorized, "unauthorized", "https://ntfy.sh/docs/publish/#authentication", nil}
 	errHTTPForbidden                                 = &errHTTP{40301, http.StatusForbidden, "forbidden", "https://ntfy.sh/docs/publish/#authentication", nil}
@@ -136,6 +156,8 @@ var (
 	errHTTPConflictPhoneNumberExists                 = &errHTTP{40904, http.StatusConflict, "conflict: phone number already exists", "", nil}
 	errHTTPConflictProvisionedUserChange             = &errHTTP{40905, http.StatusConflict, "conflict: cannot change or delete provisioned user", "", nil}
 	errHTTPConflictProvisionedTokenChange            = &errHTTP{40906, http.StatusConflict, "conflict: cannot change or delete provisioned token", "", nil}
+	errHTTPConflictEmailExists                       = &errHTTP{40907, http.StatusConflict, "conflict: email address already exists", "", nil}
+	errHTTPConflictEmailPrimaryElsewhere             = &errHTTP{40908, http.StatusConflict, "conflict: email address is the primary email on another account", "", nil}
 	errHTTPGonePhoneVerificationExpired              = &errHTTP{41001, http.StatusGone, "phone number verification expired or does not exist", "", nil}
 	errHTTPEntityTooLargeAttachment                  = &errHTTP{41301, http.StatusRequestEntityTooLarge, "attachment too large, or bandwidth limit reached", "https://ntfy.sh/docs/publish/#limitations", nil}
 	errHTTPEntityTooLargeMatrixRequest               = &errHTTP{41302, http.StatusRequestEntityTooLarge, "Matrix request is larger than the max allowed length", "", nil}
@@ -145,11 +167,12 @@ var (
 	errHTTPTooManyRequestsLimitSubscriptions         = &errHTTP{42903, http.StatusTooManyRequests, "limit reached: too many active subscriptions", "https://ntfy.sh/docs/publish/#limitations", nil}
 	errHTTPTooManyRequestsLimitTotalTopics           = &errHTTP{42904, http.StatusTooManyRequests, "limit reached: the total number of topics on the server has been reached, please contact the admin", "https://ntfy.sh/docs/publish/#limitations", nil}
 	errHTTPTooManyRequestsLimitAttachmentBandwidth   = &errHTTP{42905, http.StatusTooManyRequests, "limit reached: daily bandwidth reached", "https://ntfy.sh/docs/publish/#limitations", nil}
-	errHTTPTooManyRequestsLimitAccountCreation       = &errHTTP{42906, http.StatusTooManyRequests, "limit reached: too many accounts created", "https://ntfy.sh/docs/publish/#limitations", nil} // FIXME document limit
+	errHTTPTooManyRequestsLimitAccountActions        = &errHTTP{42906, http.StatusTooManyRequests, "limit reached: too many account requests", "https://ntfy.sh/docs/publish/#limitations", nil} // FIXME document limit
 	errHTTPTooManyRequestsLimitReservations          = &errHTTP{42907, http.StatusTooManyRequests, "limit reached: too many topic reservations for this user", "", nil}
 	errHTTPTooManyRequestsLimitMessages              = &errHTTP{42908, http.StatusTooManyRequests, "limit reached: daily message quota reached", "https://ntfy.sh/docs/publish/#limitations", nil}
 	errHTTPTooManyRequestsLimitAuthFailure           = &errHTTP{42909, http.StatusTooManyRequests, "limit reached: too many auth failures", "https://ntfy.sh/docs/publish/#limitations", nil} // FIXME document limit
 	errHTTPTooManyRequestsLimitCalls                 = &errHTTP{42910, http.StatusTooManyRequests, "limit reached: daily phone call quota reached", "https://ntfy.sh/docs/publish/#limitations", nil}
+	errHTTPTooManyRequestsLimitTopicCreation         = &errHTTP{42911, http.StatusTooManyRequests, "limit reached: too many new topics, please wait", "https://ntfy.sh/docs/publish/#limitations", nil}
 	errHTTPInternalError                             = &errHTTP{50001, http.StatusInternalServerError, "internal server error", "", nil}
 	errHTTPInternalErrorInvalidPath                  = &errHTTP{50002, http.StatusInternalServerError, "internal server error: invalid path", "", nil}
 	errHTTPInternalErrorMissingBaseURL               = &errHTTP{50003, http.StatusInternalServerError, "internal server error: base-url must be be configured for this feature", "https://ntfy.sh/docs/config/", nil}

server/file_cache.go

@@ -1,127 +0,0 @@
-package server
-
-import (
-	"errors"
-	"fmt"
-	"heckel.io/ntfy/v2/log"
-	"heckel.io/ntfy/v2/util"
-	"io"
-	"os"
-	"path/filepath"
-	"regexp"
-	"sync"
-)
-
-var (
-	fileIDRegex      = regexp.MustCompile(fmt.Sprintf(`^[-_A-Za-z0-9]{%d}$`, messageIDLength))
-	errInvalidFileID = errors.New("invalid file ID")
-	errFileExists    = errors.New("file exists")
-)
-
-type fileCache struct {
-	dir              string
-	totalSizeCurrent int64
-	totalSizeLimit   int64
-	mu               sync.Mutex
-}
-
-func newFileCache(dir string, totalSizeLimit int64) (*fileCache, error) {
-	if err := os.MkdirAll(dir, 0700); err != nil {
-		return nil, err
-	}
-	size, err := dirSize(dir)
-	if err != nil {
-		return nil, err
-	}
-	return &fileCache{
-		dir:              dir,
-		totalSizeCurrent: size,
-		totalSizeLimit:   totalSizeLimit,
-	}, nil
-}
-
-func (c *fileCache) Write(id string, in io.Reader, limiters ...util.Limiter) (int64, error) {
-	if !fileIDRegex.MatchString(id) {
-		return 0, errInvalidFileID
-	}
-	log.Tag(tagFileCache).Field("message_id", id).Debug("Writing attachment")
-	file := filepath.Join(c.dir, id)
-	if _, err := os.Stat(file); err == nil {
-		return 0, errFileExists
-	}
-	f, err := os.OpenFile(file, os.O_CREATE|os.O_WRONLY|os.O_TRUNC, 0600)
-	if err != nil {
-		return 0, err
-	}
-	defer f.Close()
-	limiters = append(limiters, util.NewFixedLimiter(c.Remaining()))
-	limitWriter := util.NewLimitWriter(f, limiters...)
-	size, err := io.Copy(limitWriter, in)
-	if err != nil {
-		os.Remove(file)
-		return 0, err
-	}
-	if err := f.Close(); err != nil {
-		os.Remove(file)
-		return 0, err
-	}
-	c.mu.Lock()
-	c.totalSizeCurrent += size
-	mset(metricAttachmentsTotalSize, c.totalSizeCurrent)
-	c.mu.Unlock()
-	return size, nil
-}
-
-func (c *fileCache) Remove(ids ...string) error {
-	for _, id := range ids {
-		if !fileIDRegex.MatchString(id) {
-			return errInvalidFileID
-		}
-		log.Tag(tagFileCache).Field("message_id", id).Debug("Deleting attachment")
-		file := filepath.Join(c.dir, id)
-		if err := os.Remove(file); err != nil {
-			log.Tag(tagFileCache).Field("message_id", id).Err(err).Debug("Error deleting attachment")
-		}
-	}
-	size, err := dirSize(c.dir)
-	if err != nil {
-		return err
-	}
-	c.mu.Lock()
-	c.totalSizeCurrent = size
-	c.mu.Unlock()
-	mset(metricAttachmentsTotalSize, size)
-	return nil
-}
-
-func (c *fileCache) Size() int64 {
-	c.mu.Lock()
-	defer c.mu.Unlock()
-	return c.totalSizeCurrent
-}
-
-func (c *fileCache) Remaining() int64 {
-	c.mu.Lock()
-	defer c.mu.Unlock()
-	remaining := c.totalSizeLimit - c.totalSizeCurrent
-	if remaining < 0 {
-		return 0
-	}
-	return remaining
-}
-
-func dirSize(dir string) (int64, error) {
-	entries, err := os.ReadDir(dir)
-	if err != nil {
-		return 0, err
-	}
-	var size int64
-	for _, e := range entries {
-		info, err := e.Info()
-		if err != nil {
-			return 0, err
-		}
-		size += info.Size()
-	}
-	return size, nil
-}

server/file_cache_test.go

@@ -1,76 +0,0 @@
-package server
-
-import (
-	"bytes"
-	"fmt"
-	"github.com/stretchr/testify/require"
-	"heckel.io/ntfy/v2/util"
-	"os"
-	"strings"
-	"testing"
-)
-
-var (
-	oneKilobyteArray = make([]byte, 1024)
-)
-
-func TestFileCache_Write_Success(t *testing.T) {
-	dir, c := newTestFileCache(t)
-	size, err := c.Write("abcdefghijkl", strings.NewReader("normal file"), util.NewFixedLimiter(999))
-	require.Nil(t, err)
-	require.Equal(t, int64(11), size)
-	require.Equal(t, "normal file", readFile(t, dir+"/abcdefghijkl"))
-	require.Equal(t, int64(11), c.Size())
-	require.Equal(t, int64(10229), c.Remaining())
-}
-
-func TestFileCache_Write_Remove_Success(t *testing.T) {
-	dir, c := newTestFileCache(t) // max = 10k (10240), each = 1k (1024)
-	for i := 0; i < 10; i++ {     // 10x999 = 9990
-		size, err := c.Write(fmt.Sprintf("abcdefghijk%d", i), bytes.NewReader(make([]byte, 999)))
-		require.Nil(t, err)
-		require.Equal(t, int64(999), size)
-	}
-	require.Equal(t, int64(9990), c.Size())
-	require.Equal(t, int64(250), c.Remaining())
-	require.FileExists(t, dir+"/abcdefghijk1")
-	require.FileExists(t, dir+"/abcdefghijk5")
-
-	require.Nil(t, c.Remove("abcdefghijk1", "abcdefghijk5"))
-	require.NoFileExists(t, dir+"/abcdefghijk1")
-	require.NoFileExists(t, dir+"/abcdefghijk5")
-	require.Equal(t, int64(7992), c.Size())
-	require.Equal(t, int64(2248), c.Remaining())
-}
-
-func TestFileCache_Write_FailedTotalSizeLimit(t *testing.T) {
-	dir, c := newTestFileCache(t)
-	for i := 0; i < 10; i++ {
-		size, err := c.Write(fmt.Sprintf("abcdefghijk%d", i), bytes.NewReader(oneKilobyteArray))
-		require.Nil(t, err)
-		require.Equal(t, int64(1024), size)
-	}
-	_, err := c.Write("abcdefghijkX", bytes.NewReader(oneKilobyteArray))
-	require.Equal(t, util.ErrLimitReached, err)
-	require.NoFileExists(t, dir+"/abcdefghijkX")
-}
-
-func TestFileCache_Write_FailedAdditionalLimiter(t *testing.T) {
-	dir, c := newTestFileCache(t)
-	_, err := c.Write("abcdefghijkl", bytes.NewReader(make([]byte, 1001)), util.NewFixedLimiter(1000))
-	require.Equal(t, util.ErrLimitReached, err)
-	require.NoFileExists(t, dir+"/abcdefghijkl")
-}
-
-func newTestFileCache(t *testing.T) (dir string, cache *fileCache) {
-	dir = t.TempDir()
-	cache, err := newFileCache(dir, 10*1024)
-	require.Nil(t, err)
-	return dir, cache
-}
-
-func readFile(t *testing.T, f string) string {
-	b, err := os.ReadFile(f)
-	require.Nil(t, err)
-	return string(b)
-}

server/log.go

@@ -1,14 +1,17 @@
 package server
 
 import (
+	"errors"
 	"fmt"
-	"github.com/emersion/go-smtp"
-	"github.com/gorilla/websocket"
-	"heckel.io/ntfy/v2/log"
-	"heckel.io/ntfy/v2/util"
 	"net/http"
 	"strings"
 	"unicode/utf8"
+
+	"github.com/emersion/go-smtp"
+	"github.com/gorilla/websocket"
+	"heckel.io/ntfy/v2/log"
+	"heckel.io/ntfy/v2/model"
+	"heckel.io/ntfy/v2/util"
 )
 
 // Log tags
@@ -21,7 +24,6 @@ const (
 	tagSMTP         = "smtp"  // Receive email
 	tagEmail        = "email" // Send email
 	tagTwilio       = "twilio"
-	tagFileCache    = "file_cache"
 	tagMessageCache = "message_cache"
 	tagStripe       = "stripe"
 	tagAccount      = "account"
@@ -33,7 +35,7 @@ const (
 )
 
 var (
-	normalErrorCodes       = []int{http.StatusNotFound, http.StatusBadRequest, http.StatusTooManyRequests, http.StatusUnauthorized, http.StatusForbidden, http.StatusInsufficientStorage}
+	normalErrorCodes       = []int{http.StatusNotFound, http.StatusBadRequest, http.StatusTooManyRequests, http.StatusUnauthorized, http.StatusForbidden, http.StatusInsufficientStorage, http.StatusRequestEntityTooLarge}
 	rateLimitingErrorCodes = []int{http.StatusTooManyRequests, http.StatusRequestEntityTooLarge}
 )
 
@@ -53,12 +55,12 @@ func logvr(v *visitor, r *http.Request) *log.Event {
 }
 
 // logvrm creates a new log event with HTTP request, visitor fields and message fields
-func logvrm(v *visitor, r *http.Request, m *message) *log.Event {
+func logvrm(v *visitor, r *http.Request, m *model.Message) *log.Event {
 	return logvr(v, r).With(m)
 }
 
 // logvrm creates a new log event with visitor fields and message fields
-func logvm(v *visitor, m *message) *log.Event {
+func logvm(v *visitor, m *model.Message) *log.Event {
 	return logv(v).With(m)
 }
 
@@ -83,7 +85,8 @@ func httpContext(r *http.Request) log.Context {
 }
 
 func websocketErrorContext(err error) log.Context {
-	if c, ok := err.(*websocket.CloseError); ok {
+	var c *websocket.CloseError
+	if errors.As(err, &c) {
 		return log.Context{
 			"error":      c.Error(),
 			"error_code": c.Code,

server/message_cache_test.go

@@ -1,752 +0,0 @@
-package server
-
-import (
-	"database/sql"
-	"fmt"
-	"github.com/stretchr/testify/assert"
-	"net/netip"
-	"path/filepath"
-	"sync"
-	"testing"
-	"time"
-
-	"github.com/stretchr/testify/require"
-)
-
-func TestSqliteCache_Messages(t *testing.T) {
-	testCacheMessages(t, newSqliteTestCache(t))
-}
-
-func TestMemCache_Messages(t *testing.T) {
-	testCacheMessages(t, newMemTestCache(t))
-}
-
-func testCacheMessages(t *testing.T, c *messageCache) {
-	m1 := newDefaultMessage("mytopic", "my message")
-	m1.Time = 1
-
-	m2 := newDefaultMessage("mytopic", "my other message")
-	m2.Time = 2
-
-	require.Nil(t, c.AddMessage(m1))
-	require.Nil(t, c.AddMessage(newDefaultMessage("example", "my example message")))
-	require.Nil(t, c.AddMessage(m2))
-
-	// Adding invalid
-	require.Equal(t, errUnexpectedMessageType, c.AddMessage(newKeepaliveMessage("mytopic"))) // These should not be added!
-	require.Equal(t, errUnexpectedMessageType, c.AddMessage(newOpenMessage("example")))      // These should not be added!
-
-	// mytopic: count
-	counts, err := c.MessageCounts()
-	require.Nil(t, err)
-	require.Equal(t, 2, counts["mytopic"])
-
-	// mytopic: since all
-	messages, _ := c.Messages("mytopic", sinceAllMessages, false)
-	require.Equal(t, 2, len(messages))
-	require.Equal(t, "my message", messages[0].Message)
-	require.Equal(t, "mytopic", messages[0].Topic)
-	require.Equal(t, messageEvent, messages[0].Event)
-	require.Equal(t, "", messages[0].Title)
-	require.Equal(t, 0, messages[0].Priority)
-	require.Nil(t, messages[0].Tags)
-	require.Equal(t, "my other message", messages[1].Message)
-
-	// mytopic: since none
-	messages, _ = c.Messages("mytopic", sinceNoMessages, false)
-	require.Empty(t, messages)
-
-	// mytopic: since m1 (by ID)
-	messages, _ = c.Messages("mytopic", newSinceID(m1.ID), false)
-	require.Equal(t, 1, len(messages))
-	require.Equal(t, m2.ID, messages[0].ID)
-	require.Equal(t, "my other message", messages[0].Message)
-	require.Equal(t, "mytopic", messages[0].Topic)
-
-	// mytopic: since 2
-	messages, _ = c.Messages("mytopic", newSinceTime(2), false)
-	require.Equal(t, 1, len(messages))
-	require.Equal(t, "my other message", messages[0].Message)
-
-	// mytopic: latest
-	messages, _ = c.Messages("mytopic", sinceLatestMessage, false)
-	require.Equal(t, 1, len(messages))
-	require.Equal(t, "my other message", messages[0].Message)
-
-	// example: count
-	counts, err = c.MessageCounts()
-	require.Nil(t, err)
-	require.Equal(t, 1, counts["example"])
-
-	// example: since all
-	messages, _ = c.Messages("example", sinceAllMessages, false)
-	require.Equal(t, "my example message", messages[0].Message)
-
-	// non-existing: count
-	counts, err = c.MessageCounts()
-	require.Nil(t, err)
-	require.Equal(t, 0, counts["doesnotexist"])
-
-	// non-existing: since all
-	messages, _ = c.Messages("doesnotexist", sinceAllMessages, false)
-	require.Empty(t, messages)
-}
-
-func TestSqliteCache_MessagesLock(t *testing.T) {
-	testCacheMessagesLock(t, newSqliteTestCache(t))
-}
-
-func TestMemCache_MessagesLock(t *testing.T) {
-	testCacheMessagesLock(t, newMemTestCache(t))
-}
-
-func testCacheMessagesLock(t *testing.T, c *messageCache) {
-	var wg sync.WaitGroup
-	for i := 0; i < 5000; i++ {
-		wg.Add(1)
-		go func() {
-			assert.Nil(t, c.AddMessage(newDefaultMessage("mytopic", "test message")))
-			wg.Done()
-		}()
-	}
-	wg.Wait()
-}
-
-func TestSqliteCache_MessagesScheduled(t *testing.T) {
-	testCacheMessagesScheduled(t, newSqliteTestCache(t))
-}
-
-func TestMemCache_MessagesScheduled(t *testing.T) {
-	testCacheMessagesScheduled(t, newMemTestCache(t))
-}
-
-func testCacheMessagesScheduled(t *testing.T, c *messageCache) {
-	m1 := newDefaultMessage("mytopic", "message 1")
-	m2 := newDefaultMessage("mytopic", "message 2")
-	m2.Time = time.Now().Add(time.Hour).Unix()
-	m3 := newDefaultMessage("mytopic", "message 3")
-	m3.Time = time.Now().Add(time.Minute).Unix() // earlier than m2!
-	m4 := newDefaultMessage("mytopic2", "message 4")
-	m4.Time = time.Now().Add(time.Minute).Unix()
-	require.Nil(t, c.AddMessage(m1))
-	require.Nil(t, c.AddMessage(m2))
-	require.Nil(t, c.AddMessage(m3))
-
-	messages, _ := c.Messages("mytopic", sinceAllMessages, false) // exclude scheduled
-	require.Equal(t, 1, len(messages))
-	require.Equal(t, "message 1", messages[0].Message)
-
-	messages, _ = c.Messages("mytopic", sinceAllMessages, true) // include scheduled
-	require.Equal(t, 3, len(messages))
-	require.Equal(t, "message 1", messages[0].Message)
-	require.Equal(t, "message 3", messages[1].Message) // Order!
-	require.Equal(t, "message 2", messages[2].Message)
-
-	messages, _ = c.MessagesDue()
-	require.Empty(t, messages)
-}
-
-func TestSqliteCache_Topics(t *testing.T) {
-	testCacheTopics(t, newSqliteTestCache(t))
-}
-
-func TestMemCache_Topics(t *testing.T) {
-	testCacheTopics(t, newMemTestCache(t))
-}
-
-func testCacheTopics(t *testing.T, c *messageCache) {
-	require.Nil(t, c.AddMessage(newDefaultMessage("topic1", "my example message")))
-	require.Nil(t, c.AddMessage(newDefaultMessage("topic2", "message 1")))
-	require.Nil(t, c.AddMessage(newDefaultMessage("topic2", "message 2")))
-	require.Nil(t, c.AddMessage(newDefaultMessage("topic2", "message 3")))
-
-	topics, err := c.Topics()
-	if err != nil {
-		t.Fatal(err)
-	}
-	require.Equal(t, 2, len(topics))
-	require.Equal(t, "topic1", topics["topic1"].ID)
-	require.Equal(t, "topic2", topics["topic2"].ID)
-}
-
-func TestSqliteCache_MessagesTagsPrioAndTitle(t *testing.T) {
-	testCacheMessagesTagsPrioAndTitle(t, newSqliteTestCache(t))
-}
-
-func TestMemCache_MessagesTagsPrioAndTitle(t *testing.T) {
-	testCacheMessagesTagsPrioAndTitle(t, newMemTestCache(t))
-}
-
-func testCacheMessagesTagsPrioAndTitle(t *testing.T, c *messageCache) {
-	m := newDefaultMessage("mytopic", "some message")
-	m.Tags = []string{"tag1", "tag2"}
-	m.Priority = 5
-	m.Title = "some title"
-	require.Nil(t, c.AddMessage(m))
-
-	messages, _ := c.Messages("mytopic", sinceAllMessages, false)
-	require.Equal(t, []string{"tag1", "tag2"}, messages[0].Tags)
-	require.Equal(t, 5, messages[0].Priority)
-	require.Equal(t, "some title", messages[0].Title)
-}
-
-func TestSqliteCache_MessagesSinceID(t *testing.T) {
-	testCacheMessagesSinceID(t, newSqliteTestCache(t))
-}
-
-func TestMemCache_MessagesSinceID(t *testing.T) {
-	testCacheMessagesSinceID(t, newMemTestCache(t))
-}
-
-func testCacheMessagesSinceID(t *testing.T, c *messageCache) {
-	m1 := newDefaultMessage("mytopic", "message 1")
-	m1.Time = 100
-	m2 := newDefaultMessage("mytopic", "message 2")
-	m2.Time = 200
-	m3 := newDefaultMessage("mytopic", "message 3")
-	m3.Time = time.Now().Add(time.Hour).Unix() // Scheduled, in the future, later than m7 and m5
-	m4 := newDefaultMessage("mytopic", "message 4")
-	m4.Time = 400
-	m5 := newDefaultMessage("mytopic", "message 5")
-	m5.Time = time.Now().Add(time.Minute).Unix() // Scheduled, in the future, later than m7
-	m6 := newDefaultMessage("mytopic", "message 6")
-	m6.Time = 600
-	m7 := newDefaultMessage("mytopic", "message 7")
-	m7.Time = 700
-
-	require.Nil(t, c.AddMessage(m1))
-	require.Nil(t, c.AddMessage(m2))
-	require.Nil(t, c.AddMessage(m3))
-	require.Nil(t, c.AddMessage(m4))
-	require.Nil(t, c.AddMessage(m5))
-	require.Nil(t, c.AddMessage(m6))
-	require.Nil(t, c.AddMessage(m7))
-
-	// Case 1: Since ID exists, exclude scheduled
-	messages, _ := c.Messages("mytopic", newSinceID(m2.ID), false)
-	require.Equal(t, 3, len(messages))
-	require.Equal(t, "message 4", messages[0].Message)
-	require.Equal(t, "message 6", messages[1].Message) // Not scheduled m3/m5!
-	require.Equal(t, "message 7", messages[2].Message)
-
-	// Case 2: Since ID exists, include scheduled
-	messages, _ = c.Messages("mytopic", newSinceID(m2.ID), true)
-	require.Equal(t, 5, len(messages))
-	require.Equal(t, "message 4", messages[0].Message)
-	require.Equal(t, "message 6", messages[1].Message)
-	require.Equal(t, "message 7", messages[2].Message)
-	require.Equal(t, "message 5", messages[3].Message) // Order!
-	require.Equal(t, "message 3", messages[4].Message) // Order!
-
-	// Case 3: Since ID does not exist (-> Return all messages), include scheduled
-	messages, _ = c.Messages("mytopic", newSinceID("doesntexist"), true)
-	require.Equal(t, 7, len(messages))
-	require.Equal(t, "message 1", messages[0].Message)
-	require.Equal(t, "message 2", messages[1].Message)
-	require.Equal(t, "message 4", messages[2].Message)
-	require.Equal(t, "message 6", messages[3].Message)
-	require.Equal(t, "message 7", messages[4].Message)
-	require.Equal(t, "message 5", messages[5].Message) // Order!
-	require.Equal(t, "message 3", messages[6].Message) // Order!
-
-	// Case 4: Since ID exists and is last message (-> Return no messages), exclude scheduled
-	messages, _ = c.Messages("mytopic", newSinceID(m7.ID), false)
-	require.Equal(t, 0, len(messages))
-
-	// Case 5: Since ID exists and is last message (-> Return no messages), include scheduled
-	messages, _ = c.Messages("mytopic", newSinceID(m7.ID), true)
-	require.Equal(t, 2, len(messages))
-	require.Equal(t, "message 5", messages[0].Message)
-	require.Equal(t, "message 3", messages[1].Message)
-}
-
-func TestSqliteCache_Prune(t *testing.T) {
-	testCachePrune(t, newSqliteTestCache(t))
-}
-
-func TestMemCache_Prune(t *testing.T) {
-	testCachePrune(t, newMemTestCache(t))
-}
-
-func testCachePrune(t *testing.T, c *messageCache) {
-	now := time.Now().Unix()
-
-	m1 := newDefaultMessage("mytopic", "my message")
-	m1.Time = now - 10
-	m1.Expires = now - 5
-
-	m2 := newDefaultMessage("mytopic", "my other message")
-	m2.Time = now - 5
-	m2.Expires = now + 5 // In the future
-
-	m3 := newDefaultMessage("another_topic", "and another one")
-	m3.Time = now - 12
-	m3.Expires = now - 2
-
-	require.Nil(t, c.AddMessage(m1))
-	require.Nil(t, c.AddMessage(m2))
-	require.Nil(t, c.AddMessage(m3))
-
-	counts, err := c.MessageCounts()
-	require.Nil(t, err)
-	require.Equal(t, 2, counts["mytopic"])
-	require.Equal(t, 1, counts["another_topic"])
-
-	expiredMessageIDs, err := c.MessagesExpired()
-	require.Nil(t, err)
-	require.Nil(t, c.DeleteMessages(expiredMessageIDs...))
-
-	counts, err = c.MessageCounts()
-	require.Nil(t, err)
-	require.Equal(t, 1, counts["mytopic"])
-	require.Equal(t, 0, counts["another_topic"])
-
-	messages, err := c.Messages("mytopic", sinceAllMessages, false)
-	require.Nil(t, err)
-	require.Equal(t, 1, len(messages))
-	require.Equal(t, "my other message", messages[0].Message)
-}
-
-func TestSqliteCache_Attachments(t *testing.T) {
-	testCacheAttachments(t, newSqliteTestCache(t))
-}
-
-func TestMemCache_Attachments(t *testing.T) {
-	testCacheAttachments(t, newMemTestCache(t))
-}
-
-func testCacheAttachments(t *testing.T, c *messageCache) {
-	expires1 := time.Now().Add(-4 * time.Hour).Unix() // Expired
-	m := newDefaultMessage("mytopic", "flower for you")
-	m.ID = "m1"
-	m.SequenceID = "m1"
-	m.Sender = netip.MustParseAddr("1.2.3.4")
-	m.Attachment = &attachment{
-		Name:    "flower.jpg",
-		Type:    "image/jpeg",
-		Size:    5000,
-		Expires: expires1,
-		URL:     "https://ntfy.sh/file/AbDeFgJhal.jpg",
-	}
-	require.Nil(t, c.AddMessage(m))
-
-	expires2 := time.Now().Add(2 * time.Hour).Unix() // Future
-	m = newDefaultMessage("mytopic", "sending you a car")
-	m.ID = "m2"
-	m.SequenceID = "m2"
-	m.Sender = netip.MustParseAddr("1.2.3.4")
-	m.Attachment = &attachment{
-		Name:    "car.jpg",
-		Type:    "image/jpeg",
-		Size:    10000,
-		Expires: expires2,
-		URL:     "https://ntfy.sh/file/aCaRURL.jpg",
-	}
-	require.Nil(t, c.AddMessage(m))
-
-	expires3 := time.Now().Add(1 * time.Hour).Unix() // Future
-	m = newDefaultMessage("another-topic", "sending you another car")
-	m.ID = "m3"
-	m.SequenceID = "m3"
-	m.User = "u_BAsbaAa"
-	m.Sender = netip.MustParseAddr("5.6.7.8")
-	m.Attachment = &attachment{
-		Name:    "another-car.jpg",
-		Type:    "image/jpeg",
-		Size:    20000,
-		Expires: expires3,
-		URL:     "https://ntfy.sh/file/zakaDHFW.jpg",
-	}
-	require.Nil(t, c.AddMessage(m))
-
-	messages, err := c.Messages("mytopic", sinceAllMessages, false)
-	require.Nil(t, err)
-	require.Equal(t, 2, len(messages))
-
-	require.Equal(t, "flower for you", messages[0].Message)
-	require.Equal(t, "flower.jpg", messages[0].Attachment.Name)
-	require.Equal(t, "image/jpeg", messages[0].Attachment.Type)
-	require.Equal(t, int64(5000), messages[0].Attachment.Size)
-	require.Equal(t, expires1, messages[0].Attachment.Expires)
-	require.Equal(t, "https://ntfy.sh/file/AbDeFgJhal.jpg", messages[0].Attachment.URL)
-	require.Equal(t, "1.2.3.4", messages[0].Sender.String())
-
-	require.Equal(t, "sending you a car", messages[1].Message)
-	require.Equal(t, "car.jpg", messages[1].Attachment.Name)
-	require.Equal(t, "image/jpeg", messages[1].Attachment.Type)
-	require.Equal(t, int64(10000), messages[1].Attachment.Size)
-	require.Equal(t, expires2, messages[1].Attachment.Expires)
-	require.Equal(t, "https://ntfy.sh/file/aCaRURL.jpg", messages[1].Attachment.URL)
-	require.Equal(t, "1.2.3.4", messages[1].Sender.String())
-
-	size, err := c.AttachmentBytesUsedBySender("1.2.3.4")
-	require.Nil(t, err)
-	require.Equal(t, int64(10000), size)
-
-	size, err = c.AttachmentBytesUsedBySender("5.6.7.8")
-	require.Nil(t, err)
-	require.Equal(t, int64(0), size) // Accounted to the user, not the IP!
-
-	size, err = c.AttachmentBytesUsedByUser("u_BAsbaAa")
-	require.Nil(t, err)
-	require.Equal(t, int64(20000), size)
-}
-
-func TestSqliteCache_Attachments_Expired(t *testing.T) {
-	testCacheAttachmentsExpired(t, newSqliteTestCache(t))
-}
-
-func TestMemCache_Attachments_Expired(t *testing.T) {
-	testCacheAttachmentsExpired(t, newMemTestCache(t))
-}
-
-func testCacheAttachmentsExpired(t *testing.T, c *messageCache) {
-	m := newDefaultMessage("mytopic", "flower for you")
-	m.ID = "m1"
-	m.SequenceID = "m1"
-	m.Expires = time.Now().Add(time.Hour).Unix()
-	require.Nil(t, c.AddMessage(m))
-
-	m = newDefaultMessage("mytopic", "message with attachment")
-	m.ID = "m2"
-	m.SequenceID = "m2"
-	m.Expires = time.Now().Add(2 * time.Hour).Unix()
-	m.Attachment = &attachment{
-		Name:    "car.jpg",
-		Type:    "image/jpeg",
-		Size:    10000,
-		Expires: time.Now().Add(2 * time.Hour).Unix(),
-		URL:     "https://ntfy.sh/file/aCaRURL.jpg",
-	}
-	require.Nil(t, c.AddMessage(m))
-
-	m = newDefaultMessage("mytopic", "message with external attachment")
-	m.ID = "m3"
-	m.SequenceID = "m3"
-	m.Expires = time.Now().Add(2 * time.Hour).Unix()
-	m.Attachment = &attachment{
-		Name:    "car.jpg",
-		Type:    "image/jpeg",
-		Expires: 0, // Unknown!
-		URL:     "https://somedomain.com/car.jpg",
-	}
-	require.Nil(t, c.AddMessage(m))
-
-	m = newDefaultMessage("mytopic2", "message with expired attachment")
-	m.ID = "m4"
-	m.SequenceID = "m4"
-	m.Expires = time.Now().Add(2 * time.Hour).Unix()
-	m.Attachment = &attachment{
-		Name:    "expired-car.jpg",
-		Type:    "image/jpeg",
-		Size:    20000,
-		Expires: time.Now().Add(-1 * time.Hour).Unix(),
-		URL:     "https://ntfy.sh/file/aCaRURL.jpg",
-	}
-	require.Nil(t, c.AddMessage(m))
-
-	ids, err := c.AttachmentsExpired()
-	require.Nil(t, err)
-	require.Equal(t, 1, len(ids))
-	require.Equal(t, "m4", ids[0])
-}
-
-func TestSqliteCache_Migration_From0(t *testing.T) {
-	filename := newSqliteTestCacheFile(t)
-	db, err := sql.Open("sqlite3", filename)
-	require.Nil(t, err)
-
-	// Create "version 0" schema
-	_, err = db.Exec(`
-		BEGIN;
-		CREATE TABLE IF NOT EXISTS messages (
-			id VARCHAR(20) PRIMARY KEY,
-			time INT NOT NULL,
-			topic VARCHAR(64) NOT NULL,
-			message VARCHAR(1024) NOT NULL
-		);
-		CREATE INDEX IF NOT EXISTS idx_topic ON messages (topic);
-		COMMIT;
-	`)
-	require.Nil(t, err)
-
-	// Insert a bunch of messages
-	for i := 0; i < 10; i++ {
-		_, err = db.Exec(`INSERT INTO messages (id, time, topic, message) VALUES (?, ?, ?, ?)`,
-			fmt.Sprintf("abcd%d", i), time.Now().Unix(), "mytopic", fmt.Sprintf("some message %d", i))
-		require.Nil(t, err)
-	}
-	require.Nil(t, db.Close())
-
-	// Create cache to trigger migration
-	c := newSqliteTestCacheFromFile(t, filename, "")
-	checkSchemaVersion(t, c.db)
-
-	messages, err := c.Messages("mytopic", sinceAllMessages, false)
-	require.Nil(t, err)
-	require.Equal(t, 10, len(messages))
-	require.Equal(t, "some message 5", messages[5].Message)
-	require.Equal(t, "", messages[5].Title)
-	require.Nil(t, messages[5].Tags)
-	require.Equal(t, 0, messages[5].Priority)
-}
-
-func TestSqliteCache_Migration_From1(t *testing.T) {
-	filename := newSqliteTestCacheFile(t)
-	db, err := sql.Open("sqlite3", filename)
-	require.Nil(t, err)
-
-	// Create "version 1" schema
-	_, err = db.Exec(`
-		CREATE TABLE IF NOT EXISTS messages (
-			id VARCHAR(20) PRIMARY KEY,
-			time INT NOT NULL,
-			topic VARCHAR(64) NOT NULL,
-			message VARCHAR(512) NOT NULL,
-			title VARCHAR(256) NOT NULL,
-			priority INT NOT NULL,
-			tags VARCHAR(256) NOT NULL
-		);
-		CREATE INDEX IF NOT EXISTS idx_topic ON messages (topic);
-		CREATE TABLE IF NOT EXISTS schemaVersion (
-			id INT PRIMARY KEY,
-			version INT NOT NULL
-		);		
-		INSERT INTO schemaVersion (id, version) VALUES (1, 1);
-	`)
-	require.Nil(t, err)
-
-	// Insert a bunch of messages
-	for i := 0; i < 10; i++ {
-		_, err = db.Exec(`INSERT INTO messages (id, time, topic, message, title, priority, tags) VALUES (?, ?, ?, ?, ?, ?, ?)`,
-			fmt.Sprintf("abcd%d", i), time.Now().Unix(), "mytopic", fmt.Sprintf("some message %d", i), "", 0, "")
-		require.Nil(t, err)
-	}
-	require.Nil(t, db.Close())
-
-	// Create cache to trigger migration
-	c := newSqliteTestCacheFromFile(t, filename, "")
-	checkSchemaVersion(t, c.db)
-
-	// Add delayed message
-	delayedMessage := newDefaultMessage("mytopic", "some delayed message")
-	delayedMessage.Time = time.Now().Add(time.Minute).Unix()
-	require.Nil(t, c.AddMessage(delayedMessage))
-
-	// 10, not 11!
-	messages, err := c.Messages("mytopic", sinceAllMessages, false)
-	require.Nil(t, err)
-	require.Equal(t, 10, len(messages))
-
-	// 11!
-	messages, err = c.Messages("mytopic", sinceAllMessages, true)
-	require.Nil(t, err)
-	require.Equal(t, 11, len(messages))
-
-	// Check that index "idx_topic" exists
-	rows, err := c.db.Query(`SELECT name FROM sqlite_master WHERE type='index' AND name='idx_topic'`)
-	require.Nil(t, err)
-	require.True(t, rows.Next())
-	var indexName string
-	require.Nil(t, rows.Scan(&indexName))
-	require.Equal(t, "idx_topic", indexName)
-}
-
-func TestSqliteCache_Migration_From9(t *testing.T) {
-	// This primarily tests the awkward migration that introduces the "expires" column.
-	// The migration logic has to update the column, using the existing "cache-duration" value.
-
-	filename := newSqliteTestCacheFile(t)
-	db, err := sql.Open("sqlite3", filename)
-	require.Nil(t, err)
-
-	// Create "version 8" schema
-	_, err = db.Exec(`
-		BEGIN;
-		CREATE TABLE IF NOT EXISTS messages (
-			id INTEGER PRIMARY KEY AUTOINCREMENT,
-			mid TEXT NOT NULL,
-			time INT NOT NULL,
-			topic TEXT NOT NULL,
-			message TEXT NOT NULL,
-			title TEXT NOT NULL,
-			priority INT NOT NULL,
-			tags TEXT NOT NULL,
-			click TEXT NOT NULL,
-			icon TEXT NOT NULL,			
-			actions TEXT NOT NULL,
-			attachment_name TEXT NOT NULL,
-			attachment_type TEXT NOT NULL,
-			attachment_size INT NOT NULL,
-			attachment_expires INT NOT NULL,
-			attachment_url TEXT NOT NULL,
-			sender TEXT NOT NULL,
-			encoding TEXT NOT NULL,
-			published INT NOT NULL
-		);
-		CREATE INDEX IF NOT EXISTS idx_mid ON messages (mid);
-		CREATE INDEX IF NOT EXISTS idx_time ON messages (time);
-		CREATE INDEX IF NOT EXISTS idx_topic ON messages (topic);
-		CREATE TABLE IF NOT EXISTS schemaVersion (
-			id INT PRIMARY KEY,
-			version INT NOT NULL
-		);		
-		INSERT INTO schemaVersion (id, version) VALUES (1, 9);
-		COMMIT;
-	`)
-	require.Nil(t, err)
-
-	// Insert a bunch of messages
-	insertQuery := `
-		INSERT INTO messages (mid, time, topic, message, title, priority, tags, click, icon, actions, attachment_name, attachment_type, attachment_size, attachment_expires, attachment_url, sender, encoding, published) 
-		VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
-	`
-	for i := 0; i < 10; i++ {
-		_, err = db.Exec(
-			insertQuery,
-			fmt.Sprintf("abcd%d", i),
-			time.Now().Unix(),
-			"mytopic",
-			fmt.Sprintf("some message %d", i),
-			"",        // title
-			0,         // priority
-			"",        // tags
-			"",        // click
-			"",        // icon
-			"",        // actions
-			"",        // attachment_name
-			"",        // attachment_type
-			0,         // attachment_size
-			0,         // attachment_type
-			"",        // attachment_url
-			"9.9.9.9", // sender
-			"",        // encoding
-			1,         // published
-		)
-		require.Nil(t, err)
-	}
-
-	// Create cache to trigger migration
-	cacheDuration := 17 * time.Hour
-	c, err := newSqliteCache(filename, "", cacheDuration, 0, 0, false)
-	require.Nil(t, err)
-	checkSchemaVersion(t, c.db)
-
-	// Check version
-	rows, err := db.Query(`SELECT version FROM main.schemaVersion WHERE id = 1`)
-	require.Nil(t, err)
-	require.True(t, rows.Next())
-	var version int
-	require.Nil(t, rows.Scan(&version))
-	require.Equal(t, currentSchemaVersion, version)
-
-	messages, err := c.Messages("mytopic", sinceAllMessages, false)
-	require.Nil(t, err)
-	require.Equal(t, 10, len(messages))
-	for _, m := range messages {
-		require.True(t, m.Expires > time.Now().Add(cacheDuration-5*time.Second).Unix())
-		require.True(t, m.Expires < time.Now().Add(cacheDuration+5*time.Second).Unix())
-	}
-}
-
-func TestSqliteCache_StartupQueries_WAL(t *testing.T) {
-	filename := newSqliteTestCacheFile(t)
-	startupQueries := `pragma journal_mode = WAL; 
-pragma synchronous = normal; 
-pragma temp_store = memory;`
-	db, err := newSqliteCache(filename, startupQueries, time.Hour, 0, 0, false)
-	require.Nil(t, err)
-	require.Nil(t, db.AddMessage(newDefaultMessage("mytopic", "some message")))
-	require.FileExists(t, filename)
-	require.FileExists(t, filename+"-wal")
-	require.FileExists(t, filename+"-shm")
-}
-
-func TestSqliteCache_StartupQueries_None(t *testing.T) {
-	filename := newSqliteTestCacheFile(t)
-	startupQueries := ""
-	db, err := newSqliteCache(filename, startupQueries, time.Hour, 0, 0, false)
-	require.Nil(t, err)
-	require.Nil(t, db.AddMessage(newDefaultMessage("mytopic", "some message")))
-	require.FileExists(t, filename)
-	require.NoFileExists(t, filename+"-wal")
-	require.NoFileExists(t, filename+"-shm")
-}
-
-func TestSqliteCache_StartupQueries_Fail(t *testing.T) {
-	filename := newSqliteTestCacheFile(t)
-	startupQueries := `xx error`
-	_, err := newSqliteCache(filename, startupQueries, time.Hour, 0, 0, false)
-	require.Error(t, err)
-}
-
-func TestSqliteCache_Sender(t *testing.T) {
-	testSender(t, newSqliteTestCache(t))
-}
-
-func TestMemCache_Sender(t *testing.T) {
-	testSender(t, newMemTestCache(t))
-}
-
-func testSender(t *testing.T, c *messageCache) {
-	m1 := newDefaultMessage("mytopic", "mymessage")
-	m1.Sender = netip.MustParseAddr("1.2.3.4")
-	require.Nil(t, c.AddMessage(m1))
-
-	m2 := newDefaultMessage("mytopic", "mymessage without sender")
-	require.Nil(t, c.AddMessage(m2))
-
-	messages, err := c.Messages("mytopic", sinceAllMessages, false)
-	require.Nil(t, err)
-	require.Equal(t, 2, len(messages))
-	require.Equal(t, messages[0].Sender, netip.MustParseAddr("1.2.3.4"))
-	require.Equal(t, messages[1].Sender, netip.Addr{})
-}
-
-func checkSchemaVersion(t *testing.T, db *sql.DB) {
-	rows, err := db.Query(`SELECT version FROM schemaVersion`)
-	require.Nil(t, err)
-	require.True(t, rows.Next())
-
-	var schemaVersion int
-	require.Nil(t, rows.Scan(&schemaVersion))
-	require.Equal(t, currentSchemaVersion, schemaVersion)
-	require.Nil(t, rows.Close())
-}
-
-func TestMemCache_NopCache(t *testing.T) {
-	c, _ := newNopCache()
-	require.Nil(t, c.AddMessage(newDefaultMessage("mytopic", "my message")))
-
-	messages, err := c.Messages("mytopic", sinceAllMessages, false)
-	require.Nil(t, err)
-	require.Empty(t, messages)
-
-	topics, err := c.Topics()
-	require.Nil(t, err)
-	require.Empty(t, topics)
-}
-
-func newSqliteTestCache(t *testing.T) *messageCache {
-	c, err := newSqliteCache(newSqliteTestCacheFile(t), "", time.Hour, 0, 0, false)
-	if err != nil {
-		t.Fatal(err)
-	}
-	return c
-}
-
-func newSqliteTestCacheFile(t *testing.T) string {
-	return filepath.Join(t.TempDir(), "cache.db")
-}
-
-func newSqliteTestCacheFromFile(t *testing.T, filename, startupQueries string) *messageCache {
-	c, err := newSqliteCache(filename, startupQueries, time.Hour, 0, 0, false)
-	require.Nil(t, err)
-	return c
-}
-
-func newMemTestCache(t *testing.T) *messageCache {
-	c, err := newMemCache()
-	require.Nil(t, err)
-	return c
-}

server/ntfy.openrc

@@ -0,0 +1,49 @@
+#!/sbin/openrc-run
+
+# OpenRC service configuration for ntfy Server. 
+# Should be placed in /etc/init.d/ as "ntfy" or "ntfy-server" (no extension), owned by root:root and with permissions 755.
+# Assumes an ntfy system user and group have been created, for example using this command:
+# useradd --system --home-dir /var/lib/ntfy --shell /bin/false --comment "User for the simple HTTP-based pub-sub notification service" ntfy
+
+name=$RC_SVCNAME
+description="ntfy server"
+
+command="/usr/local/bin/ntfy"
+command_background=true
+command_args="serve"
+command_user="ntfy:ntfy"
+extra_started_commands="reload"
+
+pidfile="/run/${RC_SVCNAME}/${RC_SVCNAME}.pid"
+
+# Changes the hard number of open files (nofile) limit to 2048 for the service.
+rc_ulimit="-n 2048"
+
+# Allows the service to bind to privileged ports (<1024).
+capabilities="^cap_net_bind_service"
+
+error_log="/var/log/ntfy.log"
+
+# Service dependencies
+depend() {
+	use net
+	after firewall
+}
+
+# Check for - and if necessary - create required files and folders. Might require some adjustment dependings on the content of the server.yml file.
+start_pre() {
+	checkpath -f --owner "$command_user" --mode 0644 \
+		/var/log/ntfy.log
+	checkpath -d --owner "$command_user" --mode 0750 \
+		/run/ntfy/
+	checkpath -d --owner "$command_user" --mode 0755 \
+		/var/lib/ntfy/
+	checkpath -d --owner "$command_user" --mode 0750 \
+		/var/cache/ntfy/
+}
+
+reload() {
+	ebegin "Reloading $RC_SVCNAME's configuration"
+	start-stop-daemon --signal SIGHUP --pidfile "${pidfile}"
+	eend $? "Failed to reload $RC_SVCNAME's configuration"
+}

server/ntfy.service

@@ -10,6 +10,18 @@ ExecReload=/bin/kill --signal HUP $MAINPID
 Restart=on-failure
 AmbientCapabilities=CAP_NET_BIND_SERVICE
 LimitNOFILE=10000
+PrivateDevices=true
+ProtectClock=true
+ProtectKernelTunables=true
+ProtectKernelModules=true
+ProtectKernelLogs=true
+RestrictRealtime=true
+ProtectHostname=true
+
+# These will be added in a future update.
+# ProtectSystem=full
+# PrivateTmp=true
+
 
 [Install]
 WantedBy=multi-user.target

server/server.yml

@@ -38,8 +38,32 @@
 #
 # firebase-key-file: <filename>
 
+# If "database-url" is set, ntfy will use PostgreSQL for all database-backed stores (message cache,
+# user manager, and web push subscriptions) instead of SQLite. When set, the "cache-file",
+# "auth-file", and "web-push-file" options must not be set.
+#
+# Note: Setting "database-url" implicitly enables authentication and access control.
+# The default access is "read-write" (see "auth-default-access").
+#
+# The URL supports standard PostgreSQL parameters (sslmode, connect_timeout, sslcert, etc.),
+# as well as ntfy-specific connection pool parameters:
+#   pool_max_conns=10          - Maximum number of open connections (default: 10)
+#   pool_max_idle_conns=N      - Maximum number of idle connections
+#   pool_conn_max_lifetime=5m  - Maximum lifetime of a connection (Go duration)
+#   pool_conn_max_idle_time=1m - Maximum idle time of a connection (Go duration)
+#
+# See https://www.postgresql.org/docs/current/libpq-connect.html#LIBPQ-PARAMKEYWORDS
+# for the full list of supported PostgreSQL connection parameters.
+#
+# Examples:
+#   database-url: "postgres://user:pass@host:5432/ntfy"
+#   database-url: "postgres://user:pass@host:5432/ntfy?sslmode=require&pool_max_conns=50"
+#
+# database-url: <connection-string>
+
 # If "cache-file" is set, messages are cached in a local SQLite database instead of only in-memory.
 # This allows for service restarts without losing messages in support of the since= parameter.
+# Not required if "database-url" is set (messages are stored in PostgreSQL instead).
 #
 # The "cache-duration" parameter defines the duration for which messages will be buffered
 # before they are deleted. This is required to support the "since=..." and "poll=1" parameter.
@@ -77,6 +101,8 @@
 # If set, access to the ntfy server and API can be controlled on a granular level using
 # the 'ntfy user' and 'ntfy access' commands. See the --help pages for details, or check the docs.
 #
+# Note: If "database-url" is set, auth is implicitly enabled and "auth-file" must not be set.
+#
 # - auth-file is the SQLite user/access database; it is created automatically if it doesn't already exist
 # - auth-default-access defines the default/fallback access if no access control entry is found; it can be
 #   set to "read-write" (default), "read-only", "write-only" or "deny-all".
@@ -90,6 +116,8 @@
 # - auth-tokens is a list of access tokens that are automatically created when the server starts.
 #   Each entry is in the format "<username>:<token>[:<label>]", e.g. "phil:tk_1234567890abcdef1234567890abcdef1234567890abcdef1234567890abcdef:My token".
 #   Use 'ntfy token generate' to generate a new access token.
+# - auth-access-cache enables an in-memory snapshot of the access control table that authorizes every
+#   request without a database round-trip.
 #
 # Debian/RPM package users:
 #   Use /var/lib/ntfy/user.db as user database to avoid permission issues. The package
@@ -105,6 +133,7 @@
 # auth-users:
 # auth-access:
 # auth-tokens:
+# auth-access-cache: false
 
 # If set, the X-Forwarded-For header (or whatever is configured in proxy-forwarded-header) is used to determine
 # the visitor IP address instead of the remote address of the connection.
@@ -127,7 +156,8 @@
 # If enabled, clients can attach files to notifications as attachments. Minimum settings to enable attachments
 # are "attachment-cache-dir" and "base-url".
 #
-# - attachment-cache-dir is the cache directory for attached files
+# - attachment-cache-dir is the cache directory for attached files, or an S3 URL for object storage
+#   e.g. /var/cache/ntfy/attachments, or s3://ACCESS_KEY:SECRET_KEY@bucket/prefix?region=us-east-1&endpoint=https://...
 # - attachment-total-size-limit is the limit of the on-disk attachment cache directory (total size)
 # - attachment-file-size-limit is the per-file attachment size limit (e.g. 300k, 2M, 100M)
 # - attachment-expiry-duration is the duration after which uploaded attachments will be deleted (e.g. 3h, 20h)
@@ -160,17 +190,20 @@
 # If enabled, allow outgoing e-mail notifications via the 'X-Email' header. If this header is set,
 # messages will additionally be sent out as e-mail using an external SMTP server.
 #
-# As of today, only SMTP servers with plain text auth (or no auth at all), and STARTLS are supported.
+# As of today, only SMTP servers with plain text auth (or no auth at all), and STARTTLS are supported.
 # Please also refer to the rate limiting settings below (visitor-email-limit-burst & visitor-email-limit-burst).
 #
 # - smtp-sender-addr is the hostname:port of the SMTP server
 # - smtp-sender-from is the e-mail address of the sender
 # - smtp-sender-user/smtp-sender-pass are the username and password of the SMTP user (leave blank for no auth)
+# - smtp-sender-verify is a flag that forces email recipient verification when enabled. If set to true,
+#   only verified email recipients can be used in the X-Email header.
 #
 # smtp-sender-addr:
 # smtp-sender-from:
 # smtp-sender-user:
 # smtp-sender-pass:
+# smtp-sender-verify: false
 
 # If enabled, ntfy will launch a lightweight SMTP server for incoming messages. Once configured, users can send
 # emails to a topic e-mail address to publish messages to a topic.
@@ -197,9 +230,10 @@
 # - web-push-public-key is the generated VAPID public key, e.g. AA1234BBCCddvveekaabcdfqwertyuiopasdfghjklzxcvbnm1234567890
 # - web-push-private-key is the generated VAPID private key, e.g. AA2BB1234567890abcdefzxcvbnm1234567890
 # - web-push-file is a database file to keep track of browser subscription endpoints, e.g. /var/cache/ntfy/webpush.db
+#   Not required if "database-url" is set (subscriptions are stored in PostgreSQL instead).
 # - web-push-email-address is the admin email address send to the push provider, e.g. sysadmin@example.com
-# - web-push-startup-queries is an optional list of queries to run on startup`
-# - web-push-expiry-warning-duration defines the duration after which unused subscriptions are sent a warning (default is 55d`)
+# - web-push-startup-queries is an optional list of queries to run on startup
+# - web-push-expiry-warning-duration defines the duration after which unused subscriptions are sent a warning (default is 55d)
 # - web-push-expiry-duration defines the duration after which unused subscriptions will expire (default is 60d)
 #
 # web-push-public-key:
@@ -280,7 +314,7 @@
 #
 # - upstream-base-url is the base URL of the upstream server. Should be "https://ntfy.sh".
 # - upstream-access-token is the token used to authenticate with the upstream server. This is only required
-#   if you exceed the upstream rate limits, or the uptream server requires authentication.
+#   if you exceed the upstream rate limits, or the upstream server requires authentication.
 #
 # upstream-base-url:
 # upstream-access-token:
@@ -327,6 +361,15 @@
 # visitor-email-limit-burst: 16
 # visitor-email-limit-replenish: "1h"
 
+# Rate limiting: Allowed new topic creations per visitor. A "creation" is when a request
+# causes a previously-unknown topic ID to be added to the in-memory topic map. Touches of
+# existing topics do not consume tokens. Mitigates topic-enumeration / squatting attacks.
+# - visitor-topic-creation-limit-burst is the initial bucket of new-topic tokens (0 = disabled)
+# - visitor-topic-creation-limit-replenish is the rate at which the bucket is refilled
+#
+# visitor-topic-creation-limit-burst: 100
+# visitor-topic-creation-limit-replenish: "1m"
+
 # Rate limiting: IPv4/IPv6 address prefix bits used for rate limiting
 # - visitor-prefix-bits-ipv4: number of bits of the IPv4 address to use for rate limiting (default: 32, full address)
 # - visitor-prefix-bits-ipv6: number of bits of the IPv6 address to use for rate limiting (default: 64, /64 subnet)

server/server_account.go

@@ -3,18 +3,22 @@ package server
 import (
 	"encoding/json"
 	"errors"
-	"heckel.io/ntfy/v2/log"
-	"heckel.io/ntfy/v2/user"
-	"heckel.io/ntfy/v2/util"
 	"net/http"
 	"net/netip"
 	"strings"
 	"time"
+
+	"heckel.io/ntfy/v2/log"
+	"heckel.io/ntfy/v2/model"
+	"heckel.io/ntfy/v2/user"
+	"heckel.io/ntfy/v2/util"
 )
 
 const (
-	syncTopicAccountSyncEvent = "sync"
-	tokenExpiryDuration       = 72 * time.Hour // Extend tokens by this much
+	syncTopicAccountSyncEvent    = "sync"
+	tokenExpiryDuration          = 72 * time.Hour // Extend tokens by this much
+	emailVerificationTokenExpiry = 24 * time.Hour // Magic-link lifetime for email verification
+	passwordResetTokenExpiry     = time.Hour      // Magic-link lifetime for password reset (higher-privilege -> shorter)
 )
 
 func (s *Server) handleAccountCreate(w http.ResponseWriter, r *http.Request, v *visitor) error {
@@ -25,14 +29,17 @@ func (s *Server) handleAccountCreate(w http.ResponseWriter, r *http.Request, v *
 		} else if u != nil {
 			return errHTTPUnauthorized // Cannot create account from user context
 		}
-		if !v.AccountCreationAllowed() {
-			return errHTTPTooManyRequestsLimitAccountCreation
+		if !v.AccountActionAllowed() {
+			return errHTTPTooManyRequestsLimitAccountActions
 		}
 	}
 	newAccount, err := readJSONWithLimit[apiAccountCreateRequest](r.Body, jsonBodyBytesLimit, false)
 	if err != nil {
 		return err
 	}
+	if newAccount.Email != "" && !emailAddressRegex.MatchString(newAccount.Email) {
+		return errHTTPBadRequestEmailAddressInvalid
+	}
 	if existingUser, _ := s.userManager.User(newAccount.Username); existingUser != nil {
 		return errHTTPConflictUserExists
 	}
@@ -43,7 +50,17 @@ func (s *Server) handleAccountCreate(w http.ResponseWriter, r *http.Request, v *
 		}
 		return err
 	}
-	v.AccountCreated()
+	v.AccountActionPerformed()
+	// If an email was provided and email sending is configured, start verification (best-effort).
+	// The address becomes the primary email on verify (the new account has no primary yet); a
+	// failure to send must not fail signup, so we only log it.
+	if newAccount.Email != "" && s.mailer != nil {
+		if u, err := s.userManager.User(newAccount.Username); err != nil {
+			logvr(v, r).Tag(tagAccount).Err(err).Warn("Failed to load new user for email verification")
+		} else if err := s.enqueueEmailVerification(u.ID, newAccount.Email); err != nil {
+			logvr(v, r).Tag(tagAccount).Err(err).Warn("Failed to send signup email verification")
+		}
+	}
 	return s.writeJSON(w, newSuccessResponse())
 }
 
@@ -158,6 +175,31 @@ func (s *Server) handleAccountGet(w http.ResponseWriter, r *http.Request, v *vis
 				response.PhoneNumbers = phoneNumbers
 			}
 		}
+		if s.mailer != nil {
+			emails, err := s.userManager.Emails(u.ID)
+			if err != nil {
+				return err
+			}
+			primaryEmail, err := s.userManager.PrimaryEmail(u.ID)
+			if err != nil {
+				return err
+			}
+			pendingEmails, err := s.userManager.PendingEmails(u.ID)
+			if err != nil {
+				return err
+			}
+			// Combine verified (with primary flag) and pending (unverified) into one list
+			emailInfos := make([]*apiAccountEmailInfo, 0, len(emails)+len(pendingEmails))
+			for _, email := range emails {
+				emailInfos = append(emailInfos, &apiAccountEmailInfo{Address: email, Primary: email == primaryEmail})
+			}
+			for _, email := range pendingEmails {
+				emailInfos = append(emailInfos, &apiAccountEmailInfo{Address: email, Pending: true})
+			}
+			if len(emailInfos) > 0 {
+				response.Emails = emailInfos
+			}
+		}
 	} else {
 		response.Username = user.Everyone
 		response.Role = string(user.RoleAnonymous)
@@ -454,21 +496,8 @@ func (s *Server) handleAccountReservationAdd(w http.ResponseWriter, r *http.Requ
 		return errHTTPUnauthorized
 	} else if err := s.userManager.AllowReservation(u.Name, req.Topic); err != nil {
 		return errHTTPConflictTopicReserved
-	} else if u.IsUser() {
-		hasReservation, err := s.userManager.HasReservation(u.Name, req.Topic)
-		if err != nil {
-			return err
-		}
-		if !hasReservation {
-			reservations, err := s.userManager.ReservationsCount(u.Name)
-			if err != nil {
-				return err
-			} else if reservations >= u.Tier.ReservationLimit {
-				return errHTTPTooManyRequestsLimitReservations
-			}
-		}
 	}
-	// Actually add the reservation
+	// Actually add the reservation (with limit check inside the transaction to avoid races)
 	logvr(v, r).
 		Tag(tagAccount).
 		Fields(log.Context{
@@ -476,11 +505,18 @@ func (s *Server) handleAccountReservationAdd(w http.ResponseWriter, r *http.Requ
 			"everyone": everyone.String(),
 		}).
 		Debug("Adding topic reservation")
-	if err := s.userManager.AddReservation(u.Name, req.Topic, everyone); err != nil {
+	var limit int64
+	if u.IsUser() && u.Tier != nil {
+		limit = u.Tier.ReservationLimit
+	}
+	if err := s.userManager.AddReservation(u.Name, req.Topic, everyone, limit); err != nil {
+		if errors.Is(err, user.ErrTooManyReservations) {
+			return errHTTPTooManyRequestsLimitReservations
+		}
 		return err
 	}
 	// Kill existing subscribers
-	t, err := s.topicFromID(req.Topic)
+	t, err := s.topicFromID(v, req.Topic)
 	if err != nil {
 		return err
 	}
@@ -529,22 +565,15 @@ func (s *Server) handleAccountReservationDelete(w http.ResponseWriter, r *http.R
 // and marks associated messages for the topics as deleted. This also eventually deletes attachments.
 // The process relies on the manager to perform the actual deletions (see runManager).
 func (s *Server) maybeRemoveMessagesAndExcessReservations(r *http.Request, v *visitor, u *user.User, reservationsLimit int64) error {
-	reservations, err := s.userManager.Reservations(u.Name)
+	removedTopics, err := s.userManager.RemoveExcessReservations(u.Name, reservationsLimit)
 	if err != nil {
 		return err
-	} else if int64(len(reservations)) <= reservationsLimit {
+	} else if len(removedTopics) == 0 {
 		logvr(v, r).Tag(tagAccount).Debug("No excess reservations to remove")
 		return nil
 	}
-	topics := make([]string, 0)
-	for i := int64(len(reservations)) - 1; i >= reservationsLimit; i-- {
-		topics = append(topics, reservations[i].Topic)
-	}
-	logvr(v, r).Tag(tagAccount).Info("Removing excess reservations for topics %s", strings.Join(topics, ", "))
-	if err := s.userManager.RemoveReservations(u.Name, topics...); err != nil {
-		return err
-	}
-	if err := s.messageCache.ExpireMessages(topics...); err != nil {
+	logvr(v, r).Tag(tagAccount).Info("Removed excess topic reservations, now removing messages for topics %s", strings.Join(removedTopics, ", "))
+	if err := s.messageCache.ExpireMessages(removedTopics...); err != nil {
 		return err
 	}
 	go s.pruneMessages()
@@ -617,6 +646,269 @@ func (s *Server) handleAccountPhoneNumberDelete(w http.ResponseWriter, r *http.R
 	return s.writeJSON(w, newSuccessResponse())
 }
 
+// handleAccountEmailAdd starts email verification (PUT /v1/account/email): it generates a
+// magic-link token, stores a pending verification, and emails the link. The address is NOT
+// added to the verified list until the user clicks the link (handleAccountEmailVerify).
+func (s *Server) handleAccountEmailAdd(w http.ResponseWriter, r *http.Request, v *visitor) error {
+	u := v.User()
+	req, err := readJSONWithLimit[apiAccountEmailRequest](r.Body, jsonBodyBytesLimit, false)
+	if err != nil {
+		return err
+	} else if !emailAddressRegex.MatchString(req.Email) {
+		return errHTTPBadRequestEmailAddressInvalid
+	}
+	// Check user is allowed to add emails (the tier email limit gates the feature)
+	if u.IsUser() && u.Tier != nil && u.Tier.EmailLimit == 0 {
+		return errHTTPUnauthorized
+	} else if u.IsUser() && u.Tier == nil && s.config.VisitorEmailLimitBurst == 0 {
+		return errHTTPUnauthorized
+	}
+	// Reject if already verified on this account (pending re-requests are fine -- they replace)
+	emails, err := s.userManager.Emails(u.ID)
+	if err != nil {
+		return err
+	} else if util.Contains(emails, req.Email) {
+		return errHTTPConflictEmailExists
+	}
+	// Rate limit (counts against the user's email quota)
+	if !v.EmailAllowed() {
+		return errHTTPTooManyRequestsLimitEmails
+	}
+	logvr(v, r).Tag(tagAccount).Field("email", req.Email).Info("Starting email verification")
+	if err := s.enqueueEmailVerification(u.ID, req.Email); err != nil {
+		return err
+	}
+	return s.writeJSON(w, newSuccessResponse())
+}
+
+// handleAccountEmailVerify performs verification from the (unauthenticated) landing page
+// (POST /v1/account/email/verify): it validates the raw token, adds the address to the user's
+// verified emails, and -- if the user has no primary yet -- promotes it. No auth is required;
+// the token binds the action to a user, so the click works from a logged-out mail client.
+func (s *Server) handleAccountEmailVerify(w http.ResponseWriter, r *http.Request, v *visitor) error {
+	req, err := readJSONWithLimit[apiAccountEmailVerifyRequest](r.Body, jsonBodyBytesLimit, false)
+	if err != nil {
+		return err
+	} else if req.Token == "" {
+		return errHTTPBadRequestEmailVerificationLinkInvalid
+	}
+	m, err := s.userManager.VerifyEmail(req.Token)
+	if errors.Is(err, user.ErrMagicLinkNotFound) {
+		return errHTTPBadRequestEmailVerificationLinkInvalid
+	} else if err != nil {
+		return err
+	}
+	logvr(v, r).Tag(tagAccount).Field("email", m.Email).Info("Email verified")
+	// Refresh the verified user's other sessions. The request is unauthenticated (v.User() is
+	// usually nil), so resolve the user from the token row and publish to their sync topic.
+	s.publishSyncEventForUserIDAsync(v, m.UserID)
+	return s.writeJSON(w, newSuccessResponse())
+}
+
+// handleAccountEmailDelete removes an email address, whether verified or still pending
+// (DELETE /v1/account/email). Removing the primary leaves the account with no primary.
+func (s *Server) handleAccountEmailDelete(w http.ResponseWriter, r *http.Request, v *visitor) error {
+	u := v.User()
+	req, err := readJSONWithLimit[apiAccountEmailRequest](r.Body, jsonBodyBytesLimit, false)
+	if err != nil {
+		return err
+	} else if !emailAddressRegex.MatchString(req.Email) {
+		return errHTTPBadRequestEmailAddressInvalid
+	}
+	logvr(v, r).Tag(tagAccount).Field("email", req.Email).Debug("Deleting email (verified or pending)")
+	if err := s.userManager.RemoveEmail(u.ID, req.Email); err != nil {
+		return err
+	}
+	// Also drop any pending verification for the address (no-op if there is none)
+	if err := s.userManager.DeleteEmailVerification(u.ID, req.Email); err != nil {
+		return err
+	}
+	return s.writeJSON(w, newSuccessResponse())
+}
+
+// handleAccountEmailSetPrimary marks an already-verified email as the user's primary (recovery)
+// email (POST /v1/account/email/primary).
+func (s *Server) handleAccountEmailSetPrimary(w http.ResponseWriter, r *http.Request, v *visitor) error {
+	u := v.User()
+	req, err := readJSONWithLimit[apiAccountEmailRequest](r.Body, jsonBodyBytesLimit, false)
+	if err != nil {
+		return err
+	} else if !emailAddressRegex.MatchString(req.Email) {
+		return errHTTPBadRequestEmailAddressInvalid
+	}
+	logvr(v, r).Tag(tagAccount).Field("email", req.Email).Info("Setting primary email")
+	err = s.userManager.SetPrimaryEmail(u.ID, req.Email)
+	if errors.Is(err, user.ErrEmailPrimaryElsewhere) {
+		return errHTTPConflictEmailPrimaryElsewhere
+	} else if errors.Is(err, user.ErrEmailNotFound) {
+		return errHTTPBadRequestEmailAddressNotVerified
+	} else if err != nil {
+		return err
+	}
+	return s.writeJSON(w, newSuccessResponse())
+}
+
+// handleAccountEmailResend re-sends a pending email verification (POST /v1/account/email/resend).
+func (s *Server) handleAccountEmailResend(w http.ResponseWriter, r *http.Request, v *visitor) error {
+	u := v.User()
+	req, err := readJSONWithLimit[apiAccountEmailRequest](r.Body, jsonBodyBytesLimit, false)
+	if err != nil {
+		return err
+	} else if !emailAddressRegex.MatchString(req.Email) {
+		return errHTTPBadRequestEmailAddressInvalid
+	}
+	// Only resend for an address that is actually pending on this account
+	pending, err := s.userManager.PendingEmails(u.ID)
+	if err != nil {
+		return err
+	} else if !util.Contains(pending, req.Email) {
+		return errHTTPBadRequestEmailAddressInvalid
+	}
+	if !v.EmailAllowed() {
+		return errHTTPTooManyRequestsLimitEmails
+	}
+	logvr(v, r).Tag(tagAccount).Field("email", req.Email).Info("Resending email verification")
+	if err := s.enqueueEmailVerification(u.ID, req.Email); err != nil {
+		return err
+	}
+	return s.writeJSON(w, newSuccessResponse())
+}
+
+// enqueueEmailVerification generates a magic-link token for the given address, stores the
+// pending verification (replacing any existing one), and emails the link. Shared by the add,
+// resend, signup, and Stripe paths. Requires base-url to build an absolute link.
+func (s *Server) enqueueEmailVerification(userID, email string) error {
+	if s.config.BaseURL == "" {
+		return errHTTPInternalErrorMissingBaseURL
+	}
+	token, err := s.userManager.AddMagicLink(user.MagicLinkKindEmailVerify, userID, email, emailVerificationTokenExpiry)
+	if err != nil {
+		return err
+	}
+	link := s.config.BaseURL + webAppEmailVerifyPathPrefix + token
+	return s.mailer.SendEmailVerification(email, link)
+}
+
+// handleAccountPasswordResetRequest starts a password reset (POST /v1/account/password/reset/request,
+// unauthenticated). It resolves the identifier (username or primary email) to at most one account
+// and emails a reset link to that account's primary email. The response is always a uniform 200,
+// regardless of whether anything matched, so it cannot be used to probe for accounts.
+func (s *Server) handleAccountPasswordResetRequest(w http.ResponseWriter, r *http.Request, v *visitor) error {
+	req, err := readJSONWithLimit[apiAccountPasswordResetRequest](r.Body, jsonBodyBytesLimit, false)
+	if err != nil {
+		return err
+	}
+	// Rate limit via the shared per-visitor account-creation bucket (no new limiter/config)
+	if !v.AccountActionAllowed() {
+		return errHTTPTooManyRequestsLimitAccountActions
+	}
+	v.AccountActionPerformed() // Consume a token on every request (including no-match), to throttle probing
+	identifier := strings.TrimSpace(req.Identifier)
+	if identifier != "" && s.config.BaseURL != "" {
+		if userID, email, ok := s.resolveResetPasswordTarget(identifier); ok {
+			token, err := s.userManager.AddMagicLink(user.MagicLinkKindPasswordReset, userID, "", passwordResetTokenExpiry)
+			if err != nil {
+				logvr(v, r).Tag(tagAccount).Err(err).Warn("Failed to create password reset token")
+			} else {
+				link := s.config.BaseURL + webAppPasswordResetPathPrefix + token
+				logvr(v, r).Tag(tagAccount).Field("user_id", userID).Info("Sending password reset link")
+				if err := s.mailer.SendPasswordReset(email, link); err != nil {
+					logvr(v, r).Tag(tagAccount).Err(err).Warn("Failed to send password reset email")
+				}
+			}
+		} else {
+			logvr(v, r).Tag(tagAccount).Debug("Password reset requested for unknown identifier (uniform response)")
+		}
+	}
+	return s.writeJSON(w, newSuccessResponse())
+}
+
+// resolveResetPasswordTarget resolves a reset identifier (username or primary email) to a single account
+// and its primary email. It applies the reset policy on top of the lookup: provisioned users are
+// excluded, and ok=false is returned unless the account has a verified primary email (reset
+// requires one, and that is where the link is sent).
+func (s *Server) resolveResetPasswordTarget(identifier string) (userID string, email string, ok bool) {
+	u, err := s.userManager.UserByEmailOrUsername(identifier)
+	if err != nil || u == nil || u.Provisioned {
+		return "", "", false
+	}
+	primary, err := s.userManager.PrimaryEmail(u.ID)
+	if err != nil || primary == "" {
+		return "", "", false
+	}
+	return u.ID, primary, true
+}
+
+// handleAccountPasswordReset performs the reset (POST /v1/account/password/reset, unauthenticated):
+// it validates the token and sets the new password. Existing access tokens stay valid.
+func (s *Server) handleAccountPasswordReset(w http.ResponseWriter, r *http.Request, v *visitor) error {
+	req, err := readJSONWithLimit[apiAccountPasswordResetConfirmRequest](r.Body, jsonBodyBytesLimit, false)
+	if err != nil {
+		return err
+	}
+	if req.Token == "" {
+		return errHTTPBadRequestResetLinkInvalid
+	} else if req.Password == "" {
+		return errHTTPBadRequest
+	}
+	err = s.userManager.ResetPassword(req.Token, req.Password)
+	if errors.Is(err, user.ErrMagicLinkNotFound) || errors.Is(err, user.ErrProvisionedUserChange) {
+		return errHTTPBadRequestResetLinkInvalid // Generic 400 (provisioned users can't be reset; don't leak that)
+	} else if err != nil {
+		return err
+	}
+	logvr(v, r).Tag(tagAccount).Info("Password reset performed")
+	return s.writeJSON(w, newSuccessResponse())
+}
+
+// convertEmailAddress resolves the X-Email value to the address ntfy should send to.
+//
+// "yes"/"true"/"1" resolves to the user's primary verified address -- or, if no primary is
+// designated (e.g. a provisioned user), the first verified address (alphabetically). This is
+// independent of smtp-sender-verify: it only requires an authenticated user with a verified
+// address, since it means "send to my own email".
+//
+// A literal address is sent as-is when smtp-sender-verify is false (the default, backwards
+// compatible); when true, the address must be one the user has verified.
+func (s *Server) convertEmailAddress(u *user.User, email string) (string, *errHTTP) {
+	if toBool(email) {
+		if u == nil {
+			return "", errHTTPBadRequestAnonymousEmailNotAllowed
+		} else if s.userManager == nil {
+			return "", errHTTPBadRequestEmailAddressNotVerified
+		}
+		primary, err := s.userManager.PrimaryEmail(u.ID)
+		if err != nil {
+			return "", errHTTPInternalError
+		} else if primary != "" {
+			return primary, nil
+		}
+		// No primary designated -> fall back to the first verified address, if any
+		emails, err := s.userManager.Emails(u.ID)
+		if err != nil {
+			return "", errHTTPInternalError
+		} else if len(emails) > 0 {
+			return emails[0], nil
+		}
+		return "", errHTTPBadRequestEmailAddressNotVerified
+	}
+	// A literal address
+	if !s.config.SMTPSenderVerify {
+		return email, nil
+	} else if u == nil {
+		return "", errHTTPBadRequestAnonymousEmailNotAllowed
+	} else if s.userManager == nil {
+		return email, nil
+	}
+	emails, err := s.userManager.Emails(u.ID)
+	if err != nil {
+		return "", errHTTPInternalError
+	} else if util.Contains(emails, email) {
+		return email, nil
+	}
+	return "", errHTTPBadRequestEmailAddressNotVerified
+}
+
 // publishSyncEventAsync kicks of a Go routine to publish a sync message to the user's sync topic
 func (s *Server) publishSyncEventAsync(v *visitor) {
 	go func() {
@@ -626,14 +918,35 @@ func (s *Server) publishSyncEventAsync(v *visitor) {
 	}()
 }
 
-// publishSyncEvent publishes a sync message to the user's sync topic
+// publishSyncEvent publishes a sync message to the authenticated user's sync topic
 func (s *Server) publishSyncEvent(v *visitor) error {
-	u := v.User()
+	return s.publishSyncEventForUser(v, v.User())
+}
+
+// publishSyncEventForUserIDAsync publishes a sync event to the sync topic of the user with the
+// given ID, resolving the user first. Used by the unauthenticated email-verify handler, where
+// the request visitor has no associated user but the token identifies the account to refresh.
+func (s *Server) publishSyncEventForUserIDAsync(v *visitor, userID string) {
+	go func() {
+		u, err := s.userManager.UserByID(userID)
+		if err != nil {
+			logv(v).Err(err).Trace("Error loading user for sync event")
+			return
+		}
+		if err := s.publishSyncEventForUser(v, u); err != nil {
+			logv(v).Err(err).Trace("Error publishing to user's sync topic")
+		}
+	}()
+}
+
+// publishSyncEventForUser publishes a sync message to the given user's sync topic, using v as
+// the publishing visitor (for rate-limit accounting). No-op if the user has no sync topic.
+func (s *Server) publishSyncEventForUser(v *visitor, u *user.User) error {
 	if u == nil || u.SyncTopic == "" {
 		return nil
 	}
 	logv(v).Field("sync_topic", u.SyncTopic).Trace("Publishing sync event to user's sync topic")
-	syncTopic, err := s.topicFromID(u.SyncTopic)
+	syncTopic, err := s.topicFromID(nil, u.SyncTopic) // internal: no rate limit
 	if err != nil {
 		return err
 	}
@@ -641,7 +954,7 @@ func (s *Server) publishSyncEvent(v *visitor) error {
 	if err != nil {
 		return err
 	}
-	m := newDefaultMessage(syncTopic.ID, string(messageBytes))
+	m := model.NewDefaultMessage(syncTopic.ID, string(messageBytes))
 	if err := syncTopic.Publish(v, m); err != nil {
 		return err
 	}

server/server_account_email_test.go

@@ -0,0 +1,452 @@
+package server
+
+import (
+	"fmt"
+	"io"
+	"strings"
+	"testing"
+
+	"github.com/stretchr/testify/require"
+	"heckel.io/ntfy/v2/model"
+	"heckel.io/ntfy/v2/user"
+	"heckel.io/ntfy/v2/util"
+)
+
+// captureMailer is a fake mailer that records the magic links it is asked to send, so tests can
+// "click" them without a real SMTP server. The notification side is a no-op.
+type captureMailer struct {
+	verifyLinks map[string]string // email -> verification link
+	resetLinks  map[string]string // email -> reset link
+}
+
+func newCaptureMailer() *captureMailer {
+	return &captureMailer{verifyLinks: map[string]string{}, resetLinks: map[string]string{}}
+}
+
+func (c *captureMailer) SendEmailVerification(to, link string) error {
+	c.verifyLinks[to] = link
+	return nil
+}
+
+func (c *captureMailer) SendPasswordReset(to, link string) error {
+	c.resetLinks[to] = link
+	return nil
+}
+
+func (c *captureMailer) SendNotification(to string, m *model.Message, senderIP string) error {
+	return nil
+}
+
+func (c *captureMailer) NotificationCounts() (total int64, success int64, failure int64) {
+	return 0, 0, 0
+}
+
+// newEmailTestServer creates a server with email sending "enabled" (SMTP + base-url configured)
+// and a capturing mailer injected, plus a tier-less user "ben" logged in via basic auth.
+func newEmailTestServer(t *testing.T, databaseURL string) (*Server, *captureMailer, map[string]string) {
+	conf := newTestConfigWithAuthFile(t, databaseURL)
+	conf.SMTPSenderAddr = "localhost:25"
+	conf.SMTPSenderFrom = "noreply@example.com"
+	conf.BaseURL = "https://ntfy.example.com"
+	s := newTestServer(t, conf)
+	mailer := newCaptureMailer()
+	s.mailer = mailer
+	require.Nil(t, s.userManager.AddUser("ben", "ben", user.RoleUser, false))
+	auth := map[string]string{"Authorization": util.BasicAuth("ben", "ben")}
+	return s, mailer, auth
+}
+
+func getAccount(t *testing.T, s *Server, auth map[string]string) *apiAccountResponse {
+	rr := request(t, s, "GET", "/v1/account", "", auth)
+	require.Equal(t, 200, rr.Code)
+	account, err := util.UnmarshalJSON[apiAccountResponse](io.NopCloser(rr.Body))
+	require.Nil(t, err)
+	return account
+}
+
+// verifiedAddrs / pendingAddrs / primaryAddr extract the addresses from the structured email
+// list returned by GET /v1/account, so assertions stay readable.
+func verifiedAddrs(account *apiAccountResponse) []string {
+	addrs := make([]string, 0)
+	for _, e := range account.Emails {
+		if !e.Pending {
+			addrs = append(addrs, e.Address)
+		}
+	}
+	return addrs
+}
+
+func pendingAddrs(account *apiAccountResponse) []string {
+	addrs := make([]string, 0)
+	for _, e := range account.Emails {
+		if e.Pending {
+			addrs = append(addrs, e.Address)
+		}
+	}
+	return addrs
+}
+
+func primaryAddr(account *apiAccountResponse) string {
+	for _, e := range account.Emails {
+		if e.Primary {
+			return e.Address
+		}
+	}
+	return ""
+}
+
+func tokenFromLink(t *testing.T, link, prefix string) string {
+	require.True(t, strings.HasPrefix(link, prefix), "link %q missing prefix %q", link, prefix)
+	return strings.TrimPrefix(link, prefix)
+}
+
+func TestAccount_Email_AddVerifySetsPrimary(t *testing.T) {
+	forEachBackend(t, func(t *testing.T, databaseURL string) {
+		s, mailer, auth := newEmailTestServer(t, databaseURL)
+		defer s.closeDatabases()
+
+		// Start verification
+		rr := request(t, s, "PUT", "/v1/account/email", `{"email":"ben@example.com"}`, auth)
+		require.Equal(t, 200, rr.Code)
+
+		// Pending, not yet verified, no primary
+		account := getAccount(t, s, auth)
+		require.Equal(t, []string{"ben@example.com"}, pendingAddrs(account))
+		require.Empty(t, verifiedAddrs(account))
+		require.Equal(t, "", primaryAddr(account))
+
+		// "Click" the captured link (unauthenticated POST)
+		token := tokenFromLink(t, mailer.verifyLinks["ben@example.com"], "https://ntfy.example.com/account/email/verify/")
+		rr = request(t, s, "POST", "/v1/account/email/verify", fmt.Sprintf(`{"token":"%s"}`, token), nil)
+		require.Equal(t, 200, rr.Code)
+
+		// Now verified + primary, no longer pending
+		account = getAccount(t, s, auth)
+		require.Equal(t, []string{"ben@example.com"}, verifiedAddrs(account))
+		require.Equal(t, "ben@example.com", primaryAddr(account))
+		require.Empty(t, pendingAddrs(account))
+	})
+}
+
+func TestAccount_Email_VerifyInvalidToken(t *testing.T) {
+	forEachBackend(t, func(t *testing.T, databaseURL string) {
+		s, _, _ := newEmailTestServer(t, databaseURL)
+		defer s.closeDatabases()
+
+		rr := request(t, s, "POST", "/v1/account/email/verify", `{"token":"doesnotexist"}`, nil)
+		require.Equal(t, 400, rr.Code)
+		require.Equal(t, 40051, toHTTPError(t, rr.Body.String()).Code)
+
+		// Empty token also rejected
+		rr = request(t, s, "POST", "/v1/account/email/verify", `{"token":""}`, nil)
+		require.Equal(t, 400, rr.Code)
+	})
+}
+
+func TestAccount_Email_DeletePending(t *testing.T) {
+	forEachBackend(t, func(t *testing.T, databaseURL string) {
+		s, _, auth := newEmailTestServer(t, databaseURL)
+		defer s.closeDatabases()
+
+		require.Equal(t, 200, request(t, s, "PUT", "/v1/account/email", `{"email":"ben@example.com"}`, auth).Code)
+		require.Equal(t, []string{"ben@example.com"}, pendingAddrs(getAccount(t, s, auth)))
+
+		// Deleting the pending address clears it (no verification ever happened)
+		require.Equal(t, 200, request(t, s, "DELETE", "/v1/account/email", `{"email":"ben@example.com"}`, auth).Code)
+		account := getAccount(t, s, auth)
+		require.Empty(t, pendingAddrs(account))
+		require.Empty(t, verifiedAddrs(account))
+	})
+}
+
+func TestAccount_Email_Resend(t *testing.T) {
+	forEachBackend(t, func(t *testing.T, databaseURL string) {
+		s, mailer, auth := newEmailTestServer(t, databaseURL)
+		defer s.closeDatabases()
+
+		require.Equal(t, 200, request(t, s, "PUT", "/v1/account/email", `{"email":"ben@example.com"}`, auth).Code)
+		firstLink := mailer.verifyLinks["ben@example.com"]
+		require.NotEmpty(t, firstLink)
+
+		// Resend issues a fresh link (the old one is replaced)
+		require.Equal(t, 200, request(t, s, "POST", "/v1/account/email/resend", `{"email":"ben@example.com"}`, auth).Code)
+		require.NotEqual(t, firstLink, mailer.verifyLinks["ben@example.com"])
+
+		// The old token no longer verifies; the new one does
+		oldToken := tokenFromLink(t, firstLink, "https://ntfy.example.com/account/email/verify/")
+		require.Equal(t, 400, request(t, s, "POST", "/v1/account/email/verify", fmt.Sprintf(`{"token":"%s"}`, oldToken), nil).Code)
+		newToken := tokenFromLink(t, mailer.verifyLinks["ben@example.com"], "https://ntfy.example.com/account/email/verify/")
+		require.Equal(t, 200, request(t, s, "POST", "/v1/account/email/verify", fmt.Sprintf(`{"token":"%s"}`, newToken), nil).Code)
+
+		// Resending for a non-pending address is rejected
+		require.Equal(t, 400, request(t, s, "POST", "/v1/account/email/resend", `{"email":"never@example.com"}`, auth).Code)
+	})
+}
+
+func TestAccount_Email_SetPrimaryCollision(t *testing.T) {
+	forEachBackend(t, func(t *testing.T, databaseURL string) {
+		s, mailer, auth := newEmailTestServer(t, databaseURL)
+		defer s.closeDatabases()
+
+		// ben verifies shared@ -> becomes his primary
+		require.Equal(t, 200, request(t, s, "PUT", "/v1/account/email", `{"email":"shared@example.com"}`, auth).Code)
+		benToken := tokenFromLink(t, mailer.verifyLinks["shared@example.com"], "https://ntfy.example.com/account/email/verify/")
+		require.Equal(t, 200, request(t, s, "POST", "/v1/account/email/verify", fmt.Sprintf(`{"token":"%s"}`, benToken), nil).Code)
+		require.Equal(t, "shared@example.com", primaryAddr(getAccount(t, s, auth)))
+
+		// alice verifies the same address -> allowed as secondary, but it is not her primary
+		require.Nil(t, s.userManager.AddUser("alice", "alice", user.RoleUser, false))
+		aliceAuth := map[string]string{"Authorization": util.BasicAuth("alice", "alice")}
+		require.Equal(t, 200, request(t, s, "PUT", "/v1/account/email", `{"email":"shared@example.com"}`, aliceAuth).Code)
+		aliceToken := tokenFromLink(t, mailer.verifyLinks["shared@example.com"], "https://ntfy.example.com/account/email/verify/")
+		require.Equal(t, 200, request(t, s, "POST", "/v1/account/email/verify", fmt.Sprintf(`{"token":"%s"}`, aliceToken), nil).Code)
+		aliceAccount := getAccount(t, s, aliceAuth)
+		require.Equal(t, []string{"shared@example.com"}, verifiedAddrs(aliceAccount))
+		require.Equal(t, "", primaryAddr(aliceAccount))
+
+		// alice trying to promote it to primary collides with ben's
+		rr := request(t, s, "POST", "/v1/account/email/primary", `{"email":"shared@example.com"}`, aliceAuth)
+		require.Equal(t, 409, rr.Code)
+		require.Equal(t, 40908, toHTTPError(t, rr.Body.String()).Code)
+	})
+}
+
+// verifyEmailFor runs the full add->click flow so the user ends up with a verified primary email.
+func verifyEmailFor(t *testing.T, s *Server, mailer *captureMailer, auth map[string]string, email string) {
+	require.Equal(t, 200, request(t, s, "PUT", "/v1/account/email", fmt.Sprintf(`{"email":"%s"}`, email), auth).Code)
+	token := tokenFromLink(t, mailer.verifyLinks[email], "https://ntfy.example.com/account/email/verify/")
+	require.Equal(t, 200, request(t, s, "POST", "/v1/account/email/verify", fmt.Sprintf(`{"token":"%s"}`, token), nil).Code)
+}
+
+// canLogin returns true if username/password authenticates (via the token-create endpoint).
+func canLogin(t *testing.T, s *Server, username, password string) bool {
+	rr := request(t, s, "POST", "/v1/account/token", "", map[string]string{"Authorization": util.BasicAuth(username, password)})
+	return rr.Code == 200
+}
+
+func TestAccount_PasswordReset_ByUsername(t *testing.T) {
+	forEachBackend(t, func(t *testing.T, databaseURL string) {
+		s, mailer, auth := newEmailTestServer(t, databaseURL)
+		defer s.closeDatabases()
+		verifyEmailFor(t, s, mailer, auth, "ben@example.com")
+
+		// Request reset by username
+		rr := request(t, s, "POST", "/v1/account/password/reset/request", `{"identifier":"ben"}`, nil)
+		require.Equal(t, 200, rr.Code)
+		token := tokenFromLink(t, mailer.resetLinks["ben@example.com"], "https://ntfy.example.com/account/password/reset/")
+
+		// Confirm with a new password
+		rr = request(t, s, "POST", "/v1/account/password/reset", fmt.Sprintf(`{"token":"%s","password":"brandnew"}`, token), nil)
+		require.Equal(t, 200, rr.Code)
+
+		require.True(t, canLogin(t, s, "ben", "brandnew"))
+		require.False(t, canLogin(t, s, "ben", "ben"))
+	})
+}
+
+func TestAccount_PasswordReset_ByEmail(t *testing.T) {
+	forEachBackend(t, func(t *testing.T, databaseURL string) {
+		s, mailer, auth := newEmailTestServer(t, databaseURL)
+		defer s.closeDatabases()
+		verifyEmailFor(t, s, mailer, auth, "ben@example.com")
+
+		rr := request(t, s, "POST", "/v1/account/password/reset/request", `{"identifier":"ben@example.com"}`, nil)
+		require.Equal(t, 200, rr.Code)
+		token := tokenFromLink(t, mailer.resetLinks["ben@example.com"], "https://ntfy.example.com/account/password/reset/")
+		rr = request(t, s, "POST", "/v1/account/password/reset", fmt.Sprintf(`{"token":"%s","password":"brandnew"}`, token), nil)
+		require.Equal(t, 200, rr.Code)
+		require.True(t, canLogin(t, s, "ben", "brandnew"))
+	})
+}
+
+func TestAccount_PasswordReset_EmailLookalikeUsernameDoesNotShadow(t *testing.T) {
+	forEachBackend(t, func(t *testing.T, databaseURL string) {
+		s, mailer, auth := newEmailTestServer(t, databaseURL)
+		defer s.closeDatabases()
+
+		// Account A (the email owner): user "ben" with verified primary email "phil@example.com"
+		verifyEmailFor(t, s, mailer, auth, "phil@example.com")
+
+		// Account B (the squatter): a different account whose USERNAME looks like A's email, with
+		// its own, different verified primary email
+		require.Nil(t, s.userManager.AddUser("phil@example.com", "squatterpass", user.RoleUser, false))
+		squatter, err := s.userManager.User("phil@example.com")
+		require.Nil(t, err)
+		require.Nil(t, s.userManager.AddEmail(squatter.ID, "squatter@example.com"))
+		require.Nil(t, s.userManager.SetPrimaryEmail(squatter.ID, "squatter@example.com"))
+
+		// Reset by the ambiguous identifier: the verified email must win over the look-alike username
+		rr := request(t, s, "POST", "/v1/account/password/reset/request", `{"identifier":"phil@example.com"}`, nil)
+		require.Equal(t, 200, rr.Code)
+		require.NotEmpty(t, mailer.resetLinks["phil@example.com"])  // sent to the email owner (account A)
+		require.Empty(t, mailer.resetLinks["squatter@example.com"]) // NOT the username squatter (account B)
+
+		// The token resets account A (ben); the squatter's password is untouched
+		token := tokenFromLink(t, mailer.resetLinks["phil@example.com"], "https://ntfy.example.com/account/password/reset/")
+		rr = request(t, s, "POST", "/v1/account/password/reset", fmt.Sprintf(`{"token":"%s","password":"brandnew"}`, token), nil)
+		require.Equal(t, 200, rr.Code)
+		require.True(t, canLogin(t, s, "ben", "brandnew"))                  // account A was reset
+		require.True(t, canLogin(t, s, "phil@example.com", "squatterpass")) // account B unaffected
+	})
+}
+
+func TestAccount_PasswordReset_UnknownIdentifierUniform(t *testing.T) {
+	forEachBackend(t, func(t *testing.T, databaseURL string) {
+		s, mailer, _ := newEmailTestServer(t, databaseURL)
+		defer s.closeDatabases()
+
+		// Unknown identifier still returns a uniform 200, and no email is sent
+		rr := request(t, s, "POST", "/v1/account/password/reset/request", `{"identifier":"ghost"}`, nil)
+		require.Equal(t, 200, rr.Code)
+		require.Empty(t, mailer.resetLinks)
+	})
+}
+
+func TestAccount_PasswordReset_NoPrimaryEmailNoSend(t *testing.T) {
+	forEachBackend(t, func(t *testing.T, databaseURL string) {
+		s, mailer, _ := newEmailTestServer(t, databaseURL)
+		defer s.closeDatabases()
+
+		// ben exists but has no verified primary email -> uniform 200, nothing sent
+		rr := request(t, s, "POST", "/v1/account/password/reset/request", `{"identifier":"ben"}`, nil)
+		require.Equal(t, 200, rr.Code)
+		require.Empty(t, mailer.resetLinks)
+	})
+}
+
+func TestAccount_Signup_WithEmail_SendsVerification(t *testing.T) {
+	forEachBackend(t, func(t *testing.T, databaseURL string) {
+		conf := newTestConfigWithAuthFile(t, databaseURL)
+		conf.EnableSignup = true
+		conf.SMTPSenderAddr = "localhost:25"
+		conf.SMTPSenderFrom = "noreply@example.com"
+		conf.BaseURL = "https://ntfy.example.com"
+		s := newTestServer(t, conf)
+		mailer := newCaptureMailer()
+		s.mailer = mailer
+		defer s.closeDatabases()
+
+		// Sign up with an optional email -> account created and a verification link sent
+		rr := request(t, s, "POST", "/v1/account", `{"username":"emma","password":"emmapass","email":"emma@example.com"}`, nil)
+		require.Equal(t, 200, rr.Code)
+		link := mailer.verifyLinks["emma@example.com"]
+		require.NotEmpty(t, link)
+
+		// Verifying the link makes it the (first) primary email
+		token := tokenFromLink(t, link, "https://ntfy.example.com/account/email/verify/")
+		require.Equal(t, 200, request(t, s, "POST", "/v1/account/email/verify", fmt.Sprintf(`{"token":"%s"}`, token), nil).Code)
+		account := getAccount(t, s, map[string]string{"Authorization": util.BasicAuth("emma", "emmapass")})
+		require.Equal(t, []string{"emma@example.com"}, verifiedAddrs(account))
+		require.Equal(t, "emma@example.com", primaryAddr(account))
+	})
+}
+
+func TestAccount_Signup_WithoutEmail_NoSend(t *testing.T) {
+	forEachBackend(t, func(t *testing.T, databaseURL string) {
+		conf := newTestConfigWithAuthFile(t, databaseURL)
+		conf.EnableSignup = true
+		conf.SMTPSenderAddr = "localhost:25"
+		conf.SMTPSenderFrom = "noreply@example.com"
+		conf.BaseURL = "https://ntfy.example.com"
+		s := newTestServer(t, conf)
+		mailer := newCaptureMailer()
+		s.mailer = mailer
+		defer s.closeDatabases()
+
+		// No email -> account created, nothing sent
+		require.Equal(t, 200, request(t, s, "POST", "/v1/account", `{"username":"emma","password":"emmapass"}`, nil).Code)
+		require.Empty(t, mailer.verifyLinks)
+
+		// Invalid email -> rejected
+		rr := request(t, s, "POST", "/v1/account", `{"username":"otto","password":"ottopass","email":"not-an-email"}`, nil)
+		require.Equal(t, 400, rr.Code)
+		require.Equal(t, 40050, toHTTPError(t, rr.Body.String()).Code)
+	})
+}
+
+func TestAccount_Email_ProvisionedPrimary(t *testing.T) {
+	forEachBackend(t, func(t *testing.T, databaseURL string) {
+		hash, err := user.HashPassword("provpass", user.DefaultUserPasswordBcryptCost)
+		require.Nil(t, err)
+		conf := newTestConfigWithAuthFile(t, databaseURL)
+		conf.SMTPSenderAddr = "localhost:25"
+		conf.SMTPSenderFrom = "noreply@example.com"
+		conf.BaseURL = "https://ntfy.example.com"
+		conf.AuthUsers = []*user.User{{Name: "prov", Hash: hash, Role: user.RoleUser}}
+		s := newTestServer(t, conf)
+		mailer := newCaptureMailer()
+		s.mailer = mailer
+		defer s.closeDatabases()
+		auth := map[string]string{"Authorization": util.BasicAuth("prov", "provpass")}
+
+		// A provisioned user's first verified email becomes their primary (used by X-Email: yes;
+		// password reset stays blocked separately for provisioned users)
+		verifyEmailFor(t, s, mailer, auth, "prov@example.com")
+		account := getAccount(t, s, auth)
+		require.Equal(t, []string{"prov@example.com"}, verifiedAddrs(account))
+		require.Equal(t, "prov@example.com", primaryAddr(account))
+
+		// Verify a second address and explicitly set it primary -> allowed, star moves
+		verifyEmailFor(t, s, mailer, auth, "prov2@example.com")
+		rr := request(t, s, "POST", "/v1/account/email/primary", `{"email":"prov2@example.com"}`, auth)
+		require.Equal(t, 200, rr.Code)
+		account = getAccount(t, s, auth)
+		require.Equal(t, "prov2@example.com", primaryAddr(account))
+	})
+}
+
+func TestAccount_PasswordReset_ProvisionedUserNoSend(t *testing.T) {
+	forEachBackend(t, func(t *testing.T, databaseURL string) {
+		// Provision a user via config (AuthUsers), with email sending enabled
+		conf := newTestConfigWithAuthFile(t, databaseURL)
+		conf.SMTPSenderAddr = "localhost:25"
+		conf.SMTPSenderFrom = "noreply@example.com"
+		conf.BaseURL = "https://ntfy.example.com"
+		conf.AuthUsers = []*user.User{
+			{Name: "prov", Hash: "$2a$10$YLiO8U21sX1uhZamTLJXHuxgVC0Z/GKISibrKCLohPgtG7yIxSk4C", Role: user.RoleUser},
+		}
+		s := newTestServer(t, conf)
+		mailer := newCaptureMailer()
+		s.mailer = mailer
+		defer s.closeDatabases()
+
+		// Give the provisioned user a verified primary email anyway
+		prov, err := s.userManager.User("prov")
+		require.Nil(t, err)
+		require.True(t, prov.Provisioned)
+		require.Nil(t, s.userManager.AddEmail(prov.ID, "prov@example.com"))
+		require.Nil(t, s.userManager.SetPrimaryEmail(prov.ID, "prov@example.com"))
+
+		// Reset request by username and by email -> uniform 200, but no email sent (can't reset)
+		require.Equal(t, 200, request(t, s, "POST", "/v1/account/password/reset/request", `{"identifier":"prov"}`, nil).Code)
+		require.Equal(t, 200, request(t, s, "POST", "/v1/account/password/reset/request", `{"identifier":"prov@example.com"}`, nil).Code)
+		require.Empty(t, mailer.resetLinks)
+	})
+}
+
+func TestAccount_PasswordReset_InvalidToken(t *testing.T) {
+	forEachBackend(t, func(t *testing.T, databaseURL string) {
+		s, _, _ := newEmailTestServer(t, databaseURL)
+		defer s.closeDatabases()
+
+		rr := request(t, s, "POST", "/v1/account/password/reset", `{"token":"nope","password":"brandnew"}`, nil)
+		require.Equal(t, 400, rr.Code)
+		require.Equal(t, 40054, toHTTPError(t, rr.Body.String()).Code)
+	})
+}
+
+func TestAccount_Email_AddDuplicateVerified(t *testing.T) {
+	forEachBackend(t, func(t *testing.T, databaseURL string) {
+		s, mailer, auth := newEmailTestServer(t, databaseURL)
+		defer s.closeDatabases()
+
+		require.Equal(t, 200, request(t, s, "PUT", "/v1/account/email", `{"email":"ben@example.com"}`, auth).Code)
+		token := tokenFromLink(t, mailer.verifyLinks["ben@example.com"], "https://ntfy.example.com/account/email/verify/")
+		require.Equal(t, 200, request(t, s, "POST", "/v1/account/email/verify", fmt.Sprintf(`{"token":"%s"}`, token), nil).Code)
+
+		// Adding the same already-verified address is a conflict
+		rr := request(t, s, "PUT", "/v1/account/email", `{"email":"ben@example.com"}`, auth)
+		require.Equal(t, 409, rr.Code)
+		require.Equal(t, 40907, toHTTPError(t, rr.Body.String()).Code)
+	})
+}

server/server_admin.go

@@ -6,6 +6,14 @@ import (
 	"net/http"
 )
 
+func (s *Server) handleVersion(w http.ResponseWriter, r *http.Request, v *visitor) error {
+	return s.writeJSON(w, &apiVersionResponse{
+		Version: s.config.BuildVersion,
+		Commit:  s.config.BuildCommit,
+		Date:    s.config.BuildDate,
+	})
+}
+
 func (s *Server) handleUsersGet(w http.ResponseWriter, r *http.Request, v *visitor) error {
 	users, err := s.userManager.Users()
 	if err != nil {