Postgres

user/manager.go

@@ -6,17 +6,17 @@ import (
 	"encoding/json"
 	"errors"
 	"fmt"
+	"net/netip"
+	"slices"
+	"strings"
+	"sync"
+	"time"
+
 	"github.com/mattn/go-sqlite3"
 	"golang.org/x/crypto/bcrypt"
 	"heckel.io/ntfy/v2/log"
 	"heckel.io/ntfy/v2/payments"
 	"heckel.io/ntfy/v2/util"
-	"net/netip"
-	"path/filepath"
-	"slices"
-	"strings"
-	"sync"
-	"time"
 )
 
 const (
@@ -43,100 +43,10 @@ const (
 var (
 	errNoTokenProvided    = errors.New("no token provided")
 	errTopicOwnedByOthers = errors.New("topic owned by others")
-	errNoRows             = errors.New("no rows found")
 )
 
 // Manager-related queries
 const (
-	createTablesQueries = `
-		BEGIN;
-		CREATE TABLE IF NOT EXISTS tier (
-			id TEXT PRIMARY KEY,
-			code TEXT NOT NULL,
-			name TEXT NOT NULL,
-			messages_limit INT NOT NULL,
-			messages_expiry_duration INT NOT NULL,
-			emails_limit INT NOT NULL,
-			calls_limit INT NOT NULL,
-			reservations_limit INT NOT NULL,
-			attachment_file_size_limit INT NOT NULL,
-			attachment_total_size_limit INT NOT NULL,
-			attachment_expiry_duration INT NOT NULL,
-			attachment_bandwidth_limit INT NOT NULL,
-			stripe_monthly_price_id TEXT,
-			stripe_yearly_price_id TEXT
-		);
-		CREATE UNIQUE INDEX idx_tier_code ON tier (code);
-		CREATE UNIQUE INDEX idx_tier_stripe_monthly_price_id ON tier (stripe_monthly_price_id);
-		CREATE UNIQUE INDEX idx_tier_stripe_yearly_price_id ON tier (stripe_yearly_price_id);
-		CREATE TABLE IF NOT EXISTS user (
-		    id TEXT PRIMARY KEY,
-			tier_id TEXT,
-			user TEXT NOT NULL,
-			pass TEXT NOT NULL,
-			role TEXT CHECK (role IN ('anonymous', 'admin', 'user')) NOT NULL,
-			prefs JSON NOT NULL DEFAULT '{}',
-			sync_topic TEXT NOT NULL,
-			provisioned INT NOT NULL,
-			stats_messages INT NOT NULL DEFAULT (0),
-			stats_emails INT NOT NULL DEFAULT (0),
-			stats_calls INT NOT NULL DEFAULT (0),
-			stripe_customer_id TEXT,
-			stripe_subscription_id TEXT,
-			stripe_subscription_status TEXT,
-			stripe_subscription_interval TEXT,
-			stripe_subscription_paid_until INT,
-			stripe_subscription_cancel_at INT,
-			created INT NOT NULL,
-			deleted INT,
-		    FOREIGN KEY (tier_id) REFERENCES tier (id)
-		);
-		CREATE UNIQUE INDEX idx_user ON user (user);
-		CREATE UNIQUE INDEX idx_user_stripe_customer_id ON user (stripe_customer_id);
-		CREATE UNIQUE INDEX idx_user_stripe_subscription_id ON user (stripe_subscription_id);
-		CREATE TABLE IF NOT EXISTS user_access (
-			user_id TEXT NOT NULL,
-			topic TEXT NOT NULL,
-			read INT NOT NULL,
-			write INT NOT NULL,
-			owner_user_id INT,
-			provisioned INT NOT NULL,
-			PRIMARY KEY (user_id, topic),
-			FOREIGN KEY (user_id) REFERENCES user (id) ON DELETE CASCADE,
-		    FOREIGN KEY (owner_user_id) REFERENCES user (id) ON DELETE CASCADE
-		);
-		CREATE TABLE IF NOT EXISTS user_token (
-			user_id TEXT NOT NULL,
-			token TEXT NOT NULL,
-			label TEXT NOT NULL,
-			last_access INT NOT NULL,
-			last_origin TEXT NOT NULL,
-			expires INT NOT NULL,
-			provisioned INT NOT NULL,
-			PRIMARY KEY (user_id, token),
-			FOREIGN KEY (user_id) REFERENCES user (id) ON DELETE CASCADE
-		);
-		CREATE UNIQUE INDEX idx_user_token ON user_token (token);
-		CREATE TABLE IF NOT EXISTS user_phone (
-			user_id TEXT NOT NULL,
-			phone_number TEXT NOT NULL,
-			PRIMARY KEY (user_id, phone_number),
-			FOREIGN KEY (user_id) REFERENCES user (id) ON DELETE CASCADE
-		);
-		CREATE TABLE IF NOT EXISTS schemaVersion (
-			id INT PRIMARY KEY,
-			version INT NOT NULL
-		);
-		INSERT INTO user (id, user, pass, role, sync_topic, provisioned, created)
-		VALUES ('` + everyoneID + `', '*', '', 'anonymous', '', false, UNIXEPOCH())
-		ON CONFLICT (id) DO NOTHING;
-		COMMIT;
-	`
-
-	builtinStartupQueries = `
-		PRAGMA foreign_keys = ON;
-	`
-
 	selectUserByIDQuery = `
 		SELECT u.id, u.user, u.pass, u.role, u.prefs, u.sync_topic, u.provisioned, u.stats_messages, u.stats_emails, u.stats_calls, u.stripe_customer_id, u.stripe_subscription_id, u.stripe_subscription_status, u.stripe_subscription_interval, u.stripe_subscription_paid_until, u.stripe_subscription_cancel_at, deleted, t.id, t.code, t.name, t.messages_limit, t.messages_expiry_duration, t.emails_limit, t.calls_limit, t.reservations_limit, t.attachment_file_size_limit, t.attachment_total_size_limit, t.attachment_expiry_duration, t.attachment_bandwidth_limit, t.stripe_monthly_price_id, t.stripe_yearly_price_id
 		FROM user u
@@ -326,229 +236,6 @@ const (
 	`
 )
 
-// Schema management queries
-const (
-	currentSchemaVersion     = 6
-	insertSchemaVersion      = `INSERT INTO schemaVersion VALUES (1, ?)`
-	updateSchemaVersion      = `UPDATE schemaVersion SET version = ? WHERE id = 1`
-	selectSchemaVersionQuery = `SELECT version FROM schemaVersion WHERE id = 1`
-
-	// 1 -> 2 (complex migration!)
-	migrate1To2CreateTablesQueries = `
-		ALTER TABLE user RENAME TO user_old;
-		CREATE TABLE IF NOT EXISTS tier (
-			id TEXT PRIMARY KEY,
-			code TEXT NOT NULL,
-			name TEXT NOT NULL,
-			messages_limit INT NOT NULL,
-			messages_expiry_duration INT NOT NULL,
-			emails_limit INT NOT NULL,
-			reservations_limit INT NOT NULL,
-			attachment_file_size_limit INT NOT NULL,
-			attachment_total_size_limit INT NOT NULL,
-			attachment_expiry_duration INT NOT NULL,
-			attachment_bandwidth_limit INT NOT NULL,
-			stripe_price_id TEXT
-		);
-		CREATE UNIQUE INDEX idx_tier_code ON tier (code);
-		CREATE UNIQUE INDEX idx_tier_price_id ON tier (stripe_price_id);
-		CREATE TABLE IF NOT EXISTS user (
-		    id TEXT PRIMARY KEY,
-			tier_id TEXT,
-			user TEXT NOT NULL,
-			pass TEXT NOT NULL,
-			role TEXT CHECK (role IN ('anonymous', 'admin', 'user')) NOT NULL,
-			prefs JSON NOT NULL DEFAULT '{}',
-			sync_topic TEXT NOT NULL,
-			stats_messages INT NOT NULL DEFAULT (0),
-			stats_emails INT NOT NULL DEFAULT (0),
-			stripe_customer_id TEXT,
-			stripe_subscription_id TEXT,
-			stripe_subscription_status TEXT,
-			stripe_subscription_paid_until INT,
-			stripe_subscription_cancel_at INT,
-			created INT NOT NULL,
-			deleted INT,
-		    FOREIGN KEY (tier_id) REFERENCES tier (id)
-		);
-		CREATE UNIQUE INDEX idx_user ON user (user);
-		CREATE UNIQUE INDEX idx_user_stripe_customer_id ON user (stripe_customer_id);
-		CREATE UNIQUE INDEX idx_user_stripe_subscription_id ON user (stripe_subscription_id);
-		CREATE TABLE IF NOT EXISTS user_access (
-			user_id TEXT NOT NULL,
-			topic TEXT NOT NULL,
-			read INT NOT NULL,
-			write INT NOT NULL,
-			owner_user_id INT,
-			PRIMARY KEY (user_id, topic),
-			FOREIGN KEY (user_id) REFERENCES user (id) ON DELETE CASCADE,
-		    FOREIGN KEY (owner_user_id) REFERENCES user (id) ON DELETE CASCADE
-		);
-		CREATE TABLE IF NOT EXISTS user_token (
-			user_id TEXT NOT NULL,
-			token TEXT NOT NULL,
-			label TEXT NOT NULL,
-			last_access INT NOT NULL,
-			last_origin TEXT NOT NULL,
-			expires INT NOT NULL,
-			PRIMARY KEY (user_id, token),
-			FOREIGN KEY (user_id) REFERENCES user (id) ON DELETE CASCADE
-		);
-		CREATE TABLE IF NOT EXISTS schemaVersion (
-			id INT PRIMARY KEY,
-			version INT NOT NULL
-		);
-		INSERT INTO user (id, user, pass, role, sync_topic, created)
-		VALUES ('u_everyone', '*', '', 'anonymous', '', UNIXEPOCH())
-		ON CONFLICT (id) DO NOTHING;
-	`
-	migrate1To2SelectAllOldUsernamesNoTx = `SELECT user FROM user_old`
-	migrate1To2InsertUserNoTx            = `
-		INSERT INTO user (id, user, pass, role, sync_topic, created)
-		SELECT ?, user, pass, role, ?, UNIXEPOCH() FROM user_old WHERE user = ?
-	`
-	migrate1To2InsertFromOldTablesAndDropNoTx = `
-		INSERT INTO user_access (user_id, topic, read, write)
-		SELECT u.id, a.topic, a.read, a.write
-		FROM user u
-	 	JOIN access a ON u.user = a.user;
-
-		DROP TABLE access;
-		DROP TABLE user_old;
-	`
-
-	// 2 -> 3
-	migrate2To3UpdateQueries = `
-		ALTER TABLE user ADD COLUMN stripe_subscription_interval TEXT;
-		ALTER TABLE tier RENAME COLUMN stripe_price_id TO stripe_monthly_price_id;
-		ALTER TABLE tier ADD COLUMN stripe_yearly_price_id TEXT;
-		DROP INDEX IF EXISTS idx_tier_price_id;
-		CREATE UNIQUE INDEX idx_tier_stripe_monthly_price_id ON tier (stripe_monthly_price_id);
-		CREATE UNIQUE INDEX idx_tier_stripe_yearly_price_id ON tier (stripe_yearly_price_id);
-	`
-
-	// 3 -> 4
-	migrate3To4UpdateQueries = `
-		ALTER TABLE tier ADD COLUMN calls_limit INT NOT NULL DEFAULT (0);
-		ALTER TABLE user ADD COLUMN stats_calls INT NOT NULL DEFAULT (0);
-		CREATE TABLE IF NOT EXISTS user_phone (
-			user_id TEXT NOT NULL,
-			phone_number TEXT NOT NULL,
-			PRIMARY KEY (user_id, phone_number),
-			FOREIGN KEY (user_id) REFERENCES user (id) ON DELETE CASCADE
-		);
-	`
-
-	// 4 -> 5
-	migrate4To5UpdateQueries = `
-		UPDATE user_access SET topic = REPLACE(topic, '_', '\_');
-	`
-
-	// 5 -> 6
-	migrate5To6UpdateQueries = `
-		PRAGMA foreign_keys=off;
-
-		-- Alter user table: Add provisioned column
-		ALTER TABLE user RENAME TO user_old;
-		CREATE TABLE IF NOT EXISTS user (
-		    id TEXT PRIMARY KEY,
-			tier_id TEXT,
-			user TEXT NOT NULL,
-			pass TEXT NOT NULL,
-			role TEXT CHECK (role IN ('anonymous', 'admin', 'user')) NOT NULL,
-			prefs JSON NOT NULL DEFAULT '{}',
-			sync_topic TEXT NOT NULL,
-			provisioned INT NOT NULL,
-			stats_messages INT NOT NULL DEFAULT (0),
-			stats_emails INT NOT NULL DEFAULT (0),
-			stats_calls INT NOT NULL DEFAULT (0),
-			stripe_customer_id TEXT,
-			stripe_subscription_id TEXT,
-			stripe_subscription_status TEXT,
-			stripe_subscription_interval TEXT,
-			stripe_subscription_paid_until INT,
-			stripe_subscription_cancel_at INT,
-			created INT NOT NULL,
-			deleted INT,
-		    FOREIGN KEY (tier_id) REFERENCES tier (id)
-		);
-		INSERT INTO user
-		SELECT
-		    id,
-		    tier_id,
-		    user,
-		    pass,
-		    role,
-		    prefs,
-		    sync_topic,
-		    0, -- provisioned
-		    stats_messages,
-		    stats_emails,
-		    stats_calls,
-		    stripe_customer_id,
-		    stripe_subscription_id,
-		    stripe_subscription_status,
-		    stripe_subscription_interval,
-		    stripe_subscription_paid_until,
-		    stripe_subscription_cancel_at,
-		    created,
-		    deleted
-		FROM user_old;
-		DROP TABLE user_old;
-
-		-- Alter user_access table: Add provisioned column
-		ALTER TABLE user_access RENAME TO user_access_old;
-		CREATE TABLE user_access (
-			user_id TEXT NOT NULL,
-			topic TEXT NOT NULL,
-			read INT NOT NULL,
-			write INT NOT NULL,
-			owner_user_id INT,
-			provisioned INTEGER NOT NULL,
-			PRIMARY KEY (user_id, topic),
-			FOREIGN KEY (user_id) REFERENCES user (id) ON DELETE CASCADE,
-			FOREIGN KEY (owner_user_id) REFERENCES user (id) ON DELETE CASCADE
-		);
-		INSERT INTO user_access SELECT *, 0 FROM user_access_old;
-		DROP TABLE user_access_old;
-
-		-- Alter user_token table: Add provisioned column
-		ALTER TABLE user_token RENAME TO user_token_old;
-		CREATE TABLE IF NOT EXISTS user_token (
-			user_id TEXT NOT NULL,
-			token TEXT NOT NULL,
-			label TEXT NOT NULL,
-			last_access INT NOT NULL,
-			last_origin TEXT NOT NULL,
-			expires INT NOT NULL,
-			provisioned INT NOT NULL,
-			PRIMARY KEY (user_id, token),
-			FOREIGN KEY (user_id) REFERENCES user (id) ON DELETE CASCADE
-		);
-		INSERT INTO user_token SELECT *, 0 FROM user_token_old;
-		DROP TABLE user_token_old;
-
-		-- Recreate indices
-		CREATE UNIQUE INDEX idx_user ON user (user);
-		CREATE UNIQUE INDEX idx_user_stripe_customer_id ON user (stripe_customer_id);
-		CREATE UNIQUE INDEX idx_user_stripe_subscription_id ON user (stripe_subscription_id);
-		CREATE UNIQUE INDEX idx_user_token ON user_token (token);
-
-		-- Re-enable foreign keys
-		PRAGMA foreign_keys=on;
-	`
-)
-
-var (
-	migrations = map[int]func(db *sql.DB) error{
-		1: migrateFrom1,
-		2: migrateFrom2,
-		3: migrateFrom3,
-		4: migrateFrom4,
-		5: migrateFrom5,
-	}
-)
-
 // Manager is an implementation of Manager. It stores users and access control list
 // in a SQLite database.
 type Manager struct {
@@ -583,28 +270,20 @@ func NewManager(config *Config) (*Manager, error) {
 	if config.QueueWriterInterval.Seconds() <= 0 {
 		config.QueueWriterInterval = DefaultUserStatsQueueWriterInterval
 	}
-	// Check the parent directory of the database file (makes for friendly error messages)
-	parentDir := filepath.Dir(config.Filename)
-	if !util.FileExists(parentDir) {
-		return nil, fmt.Errorf("user database directory %s does not exist or is not accessible", parentDir)
+
+	var manager *Manager
+	var err error
+
+	// Select database backend based on connection string
+	if strings.HasPrefix(config.Filename, "postgres:") {
+		manager, err = newPgManager(config)
+	} else {
+		manager, err = newSqliteManager(config)
 	}
-	// Open DB and run setup queries
-	db, err := sql.Open("sqlite3", config.Filename)
 	if err != nil {
 		return nil, err
 	}
-	if err := setupDB(db); err != nil {
-		return nil, err
-	}
-	if err := runStartupQueries(db, config.StartupQueries); err != nil {
-		return nil, err
-	}
-	manager := &Manager{
-		db:         db,
-		config:     config,
-		statsQueue: make(map[string]*Stats),
-		tokenQueue: make(map[string]*TokenUpdate),
-	}
+
 	if err := manager.maybeProvisionUsersAccessAndTokens(); err != nil {
 		return nil, err
 	}
@@ -1929,173 +1608,6 @@ func unescapeUnderscore(s string) string {
 	return strings.ReplaceAll(s, "\\_", "_")
 }
 
-func runStartupQueries(db *sql.DB, startupQueries string) error {
-	if _, err := db.Exec(startupQueries); err != nil {
-		return err
-	}
-	if _, err := db.Exec(builtinStartupQueries); err != nil {
-		return err
-	}
-	return nil
-}
-
-func setupDB(db *sql.DB) error {
-	// If 'schemaVersion' table does not exist, this must be a new database
-	rowsSV, err := db.Query(selectSchemaVersionQuery)
-	if err != nil {
-		return setupNewDB(db)
-	}
-	defer rowsSV.Close()
-
-	// If 'schemaVersion' table exists, read version and potentially upgrade
-	schemaVersion := 0
-	if !rowsSV.Next() {
-		return errors.New("cannot determine schema version: database file may be corrupt")
-	}
-	if err := rowsSV.Scan(&schemaVersion); err != nil {
-		return err
-	}
-	rowsSV.Close()
-
-	// Do migrations
-	if schemaVersion == currentSchemaVersion {
-		return nil
-	} else if schemaVersion > currentSchemaVersion {
-		return fmt.Errorf("unexpected schema version: version %d is higher than current version %d", schemaVersion, currentSchemaVersion)
-	}
-	for i := schemaVersion; i < currentSchemaVersion; i++ {
-		fn, ok := migrations[i]
-		if !ok {
-			return fmt.Errorf("cannot find migration step from schema version %d to %d", i, i+1)
-		} else if err := fn(db); err != nil {
-			return err
-		}
-	}
-	return nil
-}
-
-func setupNewDB(db *sql.DB) error {
-	if _, err := db.Exec(createTablesQueries); err != nil {
-		return err
-	}
-	if _, err := db.Exec(insertSchemaVersion, currentSchemaVersion); err != nil {
-		return err
-	}
-	return nil
-}
-
-func migrateFrom1(db *sql.DB) error {
-	log.Tag(tag).Info("Migrating user database schema: from 1 to 2")
-	tx, err := db.Begin()
-	if err != nil {
-		return err
-	}
-	defer tx.Rollback()
-	// Rename user -> user_old, and create new tables
-	if _, err := tx.Exec(migrate1To2CreateTablesQueries); err != nil {
-		return err
-	}
-	// Insert users from user_old into new user table, with ID and sync_topic
-	rows, err := tx.Query(migrate1To2SelectAllOldUsernamesNoTx)
-	if err != nil {
-		return err
-	}
-	defer rows.Close()
-	usernames := make([]string, 0)
-	for rows.Next() {
-		var username string
-		if err := rows.Scan(&username); err != nil {
-			return err
-		}
-		usernames = append(usernames, username)
-	}
-	if err := rows.Close(); err != nil {
-		return err
-	}
-	for _, username := range usernames {
-		userID := util.RandomStringPrefix(userIDPrefix, userIDLength)
-		syncTopic := util.RandomStringPrefix(syncTopicPrefix, syncTopicLength)
-		if _, err := tx.Exec(migrate1To2InsertUserNoTx, userID, syncTopic, username); err != nil {
-			return err
-		}
-	}
-	// Migrate old "access" table to "user_access" and drop "access" and "user_old"
-	if _, err := tx.Exec(migrate1To2InsertFromOldTablesAndDropNoTx); err != nil {
-		return err
-	}
-	if _, err := tx.Exec(updateSchemaVersion, 2); err != nil {
-		return err
-	}
-	if err := tx.Commit(); err != nil {
-		return err
-	}
-	return nil
-}
-
-func migrateFrom2(db *sql.DB) error {
-	log.Tag(tag).Info("Migrating user database schema: from 2 to 3")
-	tx, err := db.Begin()
-	if err != nil {
-		return err
-	}
-	defer tx.Rollback()
-	if _, err := tx.Exec(migrate2To3UpdateQueries); err != nil {
-		return err
-	}
-	if _, err := tx.Exec(updateSchemaVersion, 3); err != nil {
-		return err
-	}
-	return tx.Commit()
-}
-
-func migrateFrom3(db *sql.DB) error {
-	log.Tag(tag).Info("Migrating user database schema: from 3 to 4")
-	tx, err := db.Begin()
-	if err != nil {
-		return err
-	}
-	defer tx.Rollback()
-	if _, err := tx.Exec(migrate3To4UpdateQueries); err != nil {
-		return err
-	}
-	if _, err := tx.Exec(updateSchemaVersion, 4); err != nil {
-		return err
-	}
-	return tx.Commit()
-}
-
-func migrateFrom4(db *sql.DB) error {
-	log.Tag(tag).Info("Migrating user database schema: from 4 to 5")
-	tx, err := db.Begin()
-	if err != nil {
-		return err
-	}
-	defer tx.Rollback()
-	if _, err := tx.Exec(migrate4To5UpdateQueries); err != nil {
-		return err
-	}
-	if _, err := tx.Exec(updateSchemaVersion, 5); err != nil {
-		return err
-	}
-	return tx.Commit()
-}
-
-func migrateFrom5(db *sql.DB) error {
-	log.Tag(tag).Info("Migrating user database schema: from 5 to 6")
-	tx, err := db.Begin()
-	if err != nil {
-		return err
-	}
-	defer tx.Rollback()
-	if _, err := tx.Exec(migrate5To6UpdateQueries); err != nil {
-		return err
-	}
-	if _, err := tx.Exec(updateSchemaVersion, 6); err != nil {
-		return err
-	}
-	return tx.Commit()
-}
-
 func nullString(s string) sql.NullString {
 	if s == "" {
 		return sql.NullString{}

user/manager_pg.go

@@ -0,0 +1,178 @@
+package user
+
+import (
+	"database/sql"
+	"fmt"
+	"strings"
+
+	_ "github.com/lib/pq" // PostgreSQL driver
+	"heckel.io/ntfy/v2/log"
+)
+
+// PostgreSQL-specific queries
+const (
+	pgCreateTablesQueries = `
+		BEGIN;
+		CREATE TABLE IF NOT EXISTS tier (
+			id TEXT PRIMARY KEY,
+			code TEXT NOT NULL,
+			name TEXT NOT NULL,
+			messages_limit INT NOT NULL,
+			messages_expiry_duration INT NOT NULL,
+			emails_limit INT NOT NULL,
+			calls_limit INT NOT NULL,
+			reservations_limit INT NOT NULL,
+			attachment_file_size_limit INT NOT NULL,
+			attachment_total_size_limit INT NOT NULL,
+			attachment_expiry_duration INT NOT NULL,
+			attachment_bandwidth_limit INT NOT NULL,
+			stripe_monthly_price_id TEXT,
+			stripe_yearly_price_id TEXT
+		);
+		CREATE UNIQUE INDEX IF NOT EXISTS idx_tier_code ON tier (code);
+		CREATE UNIQUE INDEX IF NOT EXISTS idx_tier_stripe_monthly_price_id ON tier (stripe_monthly_price_id);
+		CREATE UNIQUE INDEX IF NOT EXISTS idx_tier_stripe_yearly_price_id ON tier (stripe_yearly_price_id);
+		CREATE TABLE IF NOT EXISTS "user" (
+		    id TEXT PRIMARY KEY,
+			tier_id TEXT,
+			"user" TEXT NOT NULL,
+			pass TEXT NOT NULL,
+			role TEXT CHECK (role IN ('anonymous', 'admin', 'user')) NOT NULL,
+			prefs JSON NOT NULL DEFAULT '{}',
+			sync_topic TEXT NOT NULL,
+			provisioned INT NOT NULL,
+			stats_messages INT NOT NULL DEFAULT 0,
+			stats_emails INT NOT NULL DEFAULT 0,
+			stats_calls INT NOT NULL DEFAULT 0,
+			stripe_customer_id TEXT,
+			stripe_subscription_id TEXT,
+			stripe_subscription_status TEXT,
+			stripe_subscription_interval TEXT,
+			stripe_subscription_paid_until INT,
+			stripe_subscription_cancel_at INT,
+			created INT NOT NULL,
+			deleted INT,
+		    FOREIGN KEY (tier_id) REFERENCES tier (id)
+		);
+		CREATE UNIQUE INDEX IF NOT EXISTS idx_user ON "user" ("user");
+		CREATE UNIQUE INDEX IF NOT EXISTS idx_user_stripe_customer_id ON "user" (stripe_customer_id);
+		CREATE UNIQUE INDEX IF NOT EXISTS idx_user_stripe_subscription_id ON "user" (stripe_subscription_id);
+		CREATE TABLE IF NOT EXISTS user_access (
+			user_id TEXT NOT NULL,
+			topic TEXT NOT NULL,
+			read INT NOT NULL,
+			write INT NOT NULL,
+			owner_user_id TEXT,
+			provisioned INT NOT NULL,
+			PRIMARY KEY (user_id, topic),
+			FOREIGN KEY (user_id) REFERENCES "user" (id) ON DELETE CASCADE,
+		    FOREIGN KEY (owner_user_id) REFERENCES "user" (id) ON DELETE CASCADE
+		);
+		CREATE TABLE IF NOT EXISTS user_token (
+			user_id TEXT NOT NULL,
+			token TEXT NOT NULL,
+			label TEXT NOT NULL,
+			last_access INT NOT NULL,
+			last_origin TEXT NOT NULL,
+			expires INT NOT NULL,
+			provisioned INT NOT NULL,
+			PRIMARY KEY (user_id, token),
+			FOREIGN KEY (user_id) REFERENCES "user" (id) ON DELETE CASCADE
+		);
+		CREATE UNIQUE INDEX IF NOT EXISTS idx_user_token ON user_token (token);
+		CREATE TABLE IF NOT EXISTS user_phone (
+			user_id TEXT NOT NULL,
+			phone_number TEXT NOT NULL,
+			PRIMARY KEY (user_id, phone_number),
+			FOREIGN KEY (user_id) REFERENCES "user" (id) ON DELETE CASCADE
+		);
+		CREATE TABLE IF NOT EXISTS schema_version (
+			id INT PRIMARY KEY,
+			version INT NOT NULL
+		);
+		INSERT INTO "user" (id, "user", pass, role, sync_topic, provisioned, created)
+		VALUES ('` + everyoneID + `', '*', '', 'anonymous', '', 0, EXTRACT(EPOCH FROM NOW())::INT)
+		ON CONFLICT (id) DO NOTHING;
+		COMMIT;
+	`
+
+	pgCurrentSchemaVersion     = 1
+	pgInsertSchemaVersion      = `INSERT INTO schema_version VALUES (1, $1)`
+	pgUpdateSchemaVersion      = `UPDATE schema_version SET version = $1 WHERE id = 1`
+	pgSelectSchemaVersionQuery = `SELECT version FROM schema_version WHERE id = 1`
+)
+
+// newPgManager creates a new PostgreSQL-backed user manager
+func newPgManager(config *Config) (*Manager, error) {
+	connStr := strings.TrimPrefix(config.Filename, "postgres:")
+	db, err := sql.Open("postgres", connStr)
+	if err != nil {
+		return nil, err
+	}
+	if err := db.Ping(); err != nil {
+		return nil, fmt.Errorf("failed to connect to PostgreSQL: %w", err)
+	}
+	if err := setupPgDB(db); err != nil {
+		return nil, err
+	}
+	if err := runPgStartupQueries(db, config.StartupQueries); err != nil {
+		return nil, err
+	}
+	return &Manager{
+		config:     config,
+		db:         db,
+		statsQueue: make(map[string]*Stats),
+		tokenQueue: make(map[string]*TokenUpdate),
+	}, nil
+}
+
+func runPgStartupQueries(db *sql.DB, startupQueries string) error {
+	if startupQueries != "" {
+		if _, err := db.Exec(startupQueries); err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+func setupPgDB(db *sql.DB) error {
+	// If 'schema_version' table does not exist, this must be a new database
+	rowsSV, err := db.Query(pgSelectSchemaVersionQuery)
+	if err != nil {
+		return setupNewPgDB(db)
+	}
+	defer rowsSV.Close()
+
+	// If 'schema_version' table exists, read version and potentially upgrade
+	schemaVersion := 0
+	if !rowsSV.Next() {
+		// Table exists but no rows, insert version
+		return setupNewPgDB(db)
+	}
+	if err := rowsSV.Scan(&schemaVersion); err != nil {
+		return err
+	}
+	rowsSV.Close()
+
+	// Do migrations
+	if schemaVersion == pgCurrentSchemaVersion {
+		return nil
+	} else if schemaVersion > pgCurrentSchemaVersion {
+		return fmt.Errorf("unexpected schema version: version %d is higher than current version %d", schemaVersion, pgCurrentSchemaVersion)
+	}
+
+	// No migrations needed yet for PG (starting at version 1)
+	log.Tag(tag).Info("PostgreSQL user database schema is up to date (version %d)", schemaVersion)
+	return nil
+}
+
+func setupNewPgDB(db *sql.DB) error {
+	if _, err := db.Exec(pgCreateTablesQueries); err != nil {
+		return err
+	}
+	if _, err := db.Exec(pgInsertSchemaVersion, pgCurrentSchemaVersion); err != nil {
+		return err
+	}
+	return nil
+}
+

user/manager_sqlite.go

@@ -0,0 +1,532 @@
+package user
+
+import (
+	"database/sql"
+	"errors"
+	"fmt"
+	"path/filepath"
+
+	"github.com/mattn/go-sqlite3"
+	"heckel.io/ntfy/v2/log"
+	"heckel.io/ntfy/v2/util"
+)
+
+var (
+	errNoRows = errors.New("no rows found")
+)
+
+// SQLite-specific queries
+const (
+	sqliteCreateTablesQueries = `
+		BEGIN;
+		CREATE TABLE IF NOT EXISTS tier (
+			id TEXT PRIMARY KEY,
+			code TEXT NOT NULL,
+			name TEXT NOT NULL,
+			messages_limit INT NOT NULL,
+			messages_expiry_duration INT NOT NULL,
+			emails_limit INT NOT NULL,
+			calls_limit INT NOT NULL,
+			reservations_limit INT NOT NULL,
+			attachment_file_size_limit INT NOT NULL,
+			attachment_total_size_limit INT NOT NULL,
+			attachment_expiry_duration INT NOT NULL,
+			attachment_bandwidth_limit INT NOT NULL,
+			stripe_monthly_price_id TEXT,
+			stripe_yearly_price_id TEXT
+		);
+		CREATE UNIQUE INDEX idx_tier_code ON tier (code);
+		CREATE UNIQUE INDEX idx_tier_stripe_monthly_price_id ON tier (stripe_monthly_price_id);
+		CREATE UNIQUE INDEX idx_tier_stripe_yearly_price_id ON tier (stripe_yearly_price_id);
+		CREATE TABLE IF NOT EXISTS user (
+		    id TEXT PRIMARY KEY,
+			tier_id TEXT,
+			user TEXT NOT NULL,
+			pass TEXT NOT NULL,
+			role TEXT CHECK (role IN ('anonymous', 'admin', 'user')) NOT NULL,
+			prefs JSON NOT NULL DEFAULT '{}',
+			sync_topic TEXT NOT NULL,
+			provisioned INT NOT NULL,
+			stats_messages INT NOT NULL DEFAULT (0),
+			stats_emails INT NOT NULL DEFAULT (0),
+			stats_calls INT NOT NULL DEFAULT (0),
+			stripe_customer_id TEXT,
+			stripe_subscription_id TEXT,
+			stripe_subscription_status TEXT,
+			stripe_subscription_interval TEXT,
+			stripe_subscription_paid_until INT,
+			stripe_subscription_cancel_at INT,
+			created INT NOT NULL,
+			deleted INT,
+		    FOREIGN KEY (tier_id) REFERENCES tier (id)
+		);
+		CREATE UNIQUE INDEX idx_user ON user (user);
+		CREATE UNIQUE INDEX idx_user_stripe_customer_id ON user (stripe_customer_id);
+		CREATE UNIQUE INDEX idx_user_stripe_subscription_id ON user (stripe_subscription_id);
+		CREATE TABLE IF NOT EXISTS user_access (
+			user_id TEXT NOT NULL,
+			topic TEXT NOT NULL,
+			read INT NOT NULL,
+			write INT NOT NULL,
+			owner_user_id INT,
+			provisioned INT NOT NULL,
+			PRIMARY KEY (user_id, topic),
+			FOREIGN KEY (user_id) REFERENCES user (id) ON DELETE CASCADE,
+		    FOREIGN KEY (owner_user_id) REFERENCES user (id) ON DELETE CASCADE
+		);
+		CREATE TABLE IF NOT EXISTS user_token (
+			user_id TEXT NOT NULL,
+			token TEXT NOT NULL,
+			label TEXT NOT NULL,
+			last_access INT NOT NULL,
+			last_origin TEXT NOT NULL,
+			expires INT NOT NULL,
+			provisioned INT NOT NULL,
+			PRIMARY KEY (user_id, token),
+			FOREIGN KEY (user_id) REFERENCES user (id) ON DELETE CASCADE
+		);
+		CREATE UNIQUE INDEX idx_user_token ON user_token (token);
+		CREATE TABLE IF NOT EXISTS user_phone (
+			user_id TEXT NOT NULL,
+			phone_number TEXT NOT NULL,
+			PRIMARY KEY (user_id, phone_number),
+			FOREIGN KEY (user_id) REFERENCES user (id) ON DELETE CASCADE
+		);
+		CREATE TABLE IF NOT EXISTS schemaVersion (
+			id INT PRIMARY KEY,
+			version INT NOT NULL
+		);
+		INSERT INTO user (id, user, pass, role, sync_topic, provisioned, created)
+		VALUES ('` + everyoneID + `', '*', '', 'anonymous', '', false, UNIXEPOCH())
+		ON CONFLICT (id) DO NOTHING;
+		COMMIT;
+	`
+
+	sqliteBuiltinStartupQueries = `
+		PRAGMA foreign_keys = ON;
+	`
+)
+
+// Schema management queries
+const (
+	sqliteCurrentSchemaVersion     = 6
+	sqliteInsertSchemaVersion      = `INSERT INTO schemaVersion VALUES (1, ?)`
+	sqliteUpdateSchemaVersion      = `UPDATE schemaVersion SET version = ? WHERE id = 1`
+	sqliteSelectSchemaVersionQuery = `SELECT version FROM schemaVersion WHERE id = 1`
+
+	// Migration queries (1->2 through 5->6)
+	// These are SQLite-specific due to PRAGMA, ALTER TABLE syntax, etc.
+	migrate1To2CreateTablesQueries = `
+		ALTER TABLE user RENAME TO user_old;
+		CREATE TABLE IF NOT EXISTS tier (
+			id TEXT PRIMARY KEY,
+			code TEXT NOT NULL,
+			name TEXT NOT NULL,
+			messages_limit INT NOT NULL,
+			messages_expiry_duration INT NOT NULL,
+			emails_limit INT NOT NULL,
+			reservations_limit INT NOT NULL,
+			attachment_file_size_limit INT NOT NULL,
+			attachment_total_size_limit INT NOT NULL,
+			attachment_expiry_duration INT NOT NULL,
+			attachment_bandwidth_limit INT NOT NULL,
+			stripe_price_id TEXT
+		);
+		CREATE UNIQUE INDEX idx_tier_code ON tier (code);
+		CREATE UNIQUE INDEX idx_tier_price_id ON tier (stripe_price_id);
+		CREATE TABLE IF NOT EXISTS user (
+		    id TEXT PRIMARY KEY,
+			tier_id TEXT,
+			user TEXT NOT NULL,
+			pass TEXT NOT NULL,
+			role TEXT CHECK (role IN ('anonymous', 'admin', 'user')) NOT NULL,
+			prefs JSON NOT NULL DEFAULT '{}',
+			sync_topic TEXT NOT NULL,
+			stats_messages INT NOT NULL DEFAULT (0),
+			stats_emails INT NOT NULL DEFAULT (0),
+			stripe_customer_id TEXT,
+			stripe_subscription_id TEXT,
+			stripe_subscription_status TEXT,
+			stripe_subscription_paid_until INT,
+			stripe_subscription_cancel_at INT,
+			created INT NOT NULL,
+			deleted INT,
+		    FOREIGN KEY (tier_id) REFERENCES tier (id)
+		);
+		CREATE UNIQUE INDEX idx_user ON user (user);
+		CREATE UNIQUE INDEX idx_user_stripe_customer_id ON user (stripe_customer_id);
+		CREATE UNIQUE INDEX idx_user_stripe_subscription_id ON user (stripe_subscription_id);
+		CREATE TABLE IF NOT EXISTS user_access (
+			user_id TEXT NOT NULL,
+			topic TEXT NOT NULL,
+			read INT NOT NULL,
+			write INT NOT NULL,
+			owner_user_id INT,
+			PRIMARY KEY (user_id, topic),
+			FOREIGN KEY (user_id) REFERENCES user (id) ON DELETE CASCADE,
+		    FOREIGN KEY (owner_user_id) REFERENCES user (id) ON DELETE CASCADE
+		);
+		CREATE TABLE IF NOT EXISTS user_token (
+			user_id TEXT NOT NULL,
+			token TEXT NOT NULL,
+			label TEXT NOT NULL,
+			last_access INT NOT NULL,
+			last_origin TEXT NOT NULL,
+			expires INT NOT NULL,
+			PRIMARY KEY (user_id, token),
+			FOREIGN KEY (user_id) REFERENCES user (id) ON DELETE CASCADE
+		);
+		CREATE TABLE IF NOT EXISTS schemaVersion (
+			id INT PRIMARY KEY,
+			version INT NOT NULL
+		);
+		INSERT INTO user (id, user, pass, role, sync_topic, created)
+		VALUES ('u_everyone', '*', '', 'anonymous', '', UNIXEPOCH())
+		ON CONFLICT (id) DO NOTHING;
+	`
+	migrate1To2SelectAllOldUsernamesNoTx = `SELECT user FROM user_old`
+	migrate1To2InsertUserNoTx            = `
+		INSERT INTO user (id, user, pass, role, sync_topic, created)
+		SELECT ?, user, pass, role, ?, UNIXEPOCH() FROM user_old WHERE user = ?
+	`
+	migrate1To2InsertFromOldTablesAndDropNoTx = `
+		INSERT INTO user_access (user_id, topic, read, write)
+		SELECT u.id, a.topic, a.read, a.write
+		FROM user u
+	 	JOIN access a ON u.user = a.user;
+
+		DROP TABLE access;
+		DROP TABLE user_old;
+	`
+
+	migrate2To3UpdateQueries = `
+		ALTER TABLE user ADD COLUMN stripe_subscription_interval TEXT;
+		ALTER TABLE tier RENAME COLUMN stripe_price_id TO stripe_monthly_price_id;
+		ALTER TABLE tier ADD COLUMN stripe_yearly_price_id TEXT;
+		DROP INDEX IF EXISTS idx_tier_price_id;
+		CREATE UNIQUE INDEX idx_tier_stripe_monthly_price_id ON tier (stripe_monthly_price_id);
+		CREATE UNIQUE INDEX idx_tier_stripe_yearly_price_id ON tier (stripe_yearly_price_id);
+	`
+
+	migrate3To4UpdateQueries = `
+		ALTER TABLE tier ADD COLUMN calls_limit INT NOT NULL DEFAULT (0);
+		ALTER TABLE user ADD COLUMN stats_calls INT NOT NULL DEFAULT (0);
+		CREATE TABLE IF NOT EXISTS user_phone (
+			user_id TEXT NOT NULL,
+			phone_number TEXT NOT NULL,
+			PRIMARY KEY (user_id, phone_number),
+			FOREIGN KEY (user_id) REFERENCES user (id) ON DELETE CASCADE
+		);
+	`
+
+	migrate4To5UpdateQueries = `
+		UPDATE user_access SET topic = REPLACE(topic, '_', '\_');
+	`
+
+	migrate5To6UpdateQueries = `
+		PRAGMA foreign_keys=off;
+
+		-- Alter user table: Add provisioned column
+		ALTER TABLE user RENAME TO user_old;
+		CREATE TABLE IF NOT EXISTS user (
+		    id TEXT PRIMARY KEY,
+			tier_id TEXT,
+			user TEXT NOT NULL,
+			pass TEXT NOT NULL,
+			role TEXT CHECK (role IN ('anonymous', 'admin', 'user')) NOT NULL,
+			prefs JSON NOT NULL DEFAULT '{}',
+			sync_topic TEXT NOT NULL,
+			provisioned INT NOT NULL,
+			stats_messages INT NOT NULL DEFAULT (0),
+			stats_emails INT NOT NULL DEFAULT (0),
+			stats_calls INT NOT NULL DEFAULT (0),
+			stripe_customer_id TEXT,
+			stripe_subscription_id TEXT,
+			stripe_subscription_status TEXT,
+			stripe_subscription_interval TEXT,
+			stripe_subscription_paid_until INT,
+			stripe_subscription_cancel_at INT,
+			created INT NOT NULL,
+			deleted INT,
+		    FOREIGN KEY (tier_id) REFERENCES tier (id)
+		);
+		INSERT INTO user
+		SELECT
+		    id,
+		    tier_id,
+		    user,
+		    pass,
+		    role,
+		    prefs,
+		    sync_topic,
+		    0, -- provisioned
+		    stats_messages,
+		    stats_emails,
+		    stats_calls,
+		    stripe_customer_id,
+		    stripe_subscription_id,
+		    stripe_subscription_status,
+		    stripe_subscription_interval,
+		    stripe_subscription_paid_until,
+		    stripe_subscription_cancel_at,
+		    created,
+		    deleted
+		FROM user_old;
+		DROP TABLE user_old;
+
+		-- Alter user_access table: Add provisioned column
+		ALTER TABLE user_access RENAME TO user_access_old;
+		CREATE TABLE user_access (
+			user_id TEXT NOT NULL,
+			topic TEXT NOT NULL,
+			read INT NOT NULL,
+			write INT NOT NULL,
+			owner_user_id INT,
+			provisioned INTEGER NOT NULL,
+			PRIMARY KEY (user_id, topic),
+			FOREIGN KEY (user_id) REFERENCES user (id) ON DELETE CASCADE,
+			FOREIGN KEY (owner_user_id) REFERENCES user (id) ON DELETE CASCADE
+		);
+		INSERT INTO user_access SELECT *, 0 FROM user_access_old;
+		DROP TABLE user_access_old;
+
+		-- Alter user_token table: Add provisioned column
+		ALTER TABLE user_token RENAME TO user_token_old;
+		CREATE TABLE IF NOT EXISTS user_token (
+			user_id TEXT NOT NULL,
+			token TEXT NOT NULL,
+			label TEXT NOT NULL,
+			last_access INT NOT NULL,
+			last_origin TEXT NOT NULL,
+			expires INT NOT NULL,
+			provisioned INT NOT NULL,
+			PRIMARY KEY (user_id, token),
+			FOREIGN KEY (user_id) REFERENCES user (id) ON DELETE CASCADE
+		);
+		INSERT INTO user_token SELECT *, 0 FROM user_token_old;
+		DROP TABLE user_token_old;
+
+		-- Recreate indices
+		CREATE UNIQUE INDEX idx_user ON user (user);
+		CREATE UNIQUE INDEX idx_user_stripe_customer_id ON user (stripe_customer_id);
+		CREATE UNIQUE INDEX idx_user_stripe_subscription_id ON user (stripe_subscription_id);
+		CREATE UNIQUE INDEX idx_user_token ON user_token (token);
+
+		-- Re-enable foreign keys
+		PRAGMA foreign_keys=on;
+	`
+)
+
+var (
+	sqliteMigrations = map[int]func(db *sql.DB) error{
+		1: migrateFrom1,
+		2: migrateFrom2,
+		3: migrateFrom3,
+		4: migrateFrom4,
+		5: migrateFrom5,
+	}
+)
+
+// newSqliteManager creates a new SQLite-backed Manager
+func newSqliteManager(config *Config) (*Manager, error) {
+	// Check the parent directory of the database file (makes for friendly error messages)
+	parentDir := filepath.Dir(config.Filename)
+	if !util.FileExists(parentDir) {
+		return nil, fmt.Errorf("user database directory %s does not exist or is not accessible", parentDir)
+	}
+	// Open DB and run setup queries
+	db, err := sql.Open("sqlite3", config.Filename)
+	if err != nil {
+		return nil, err
+	}
+	if err := setupSqliteDB(db); err != nil {
+		return nil, err
+	}
+	if err := runSqliteStartupQueries(db, config.StartupQueries); err != nil {
+		return nil, err
+	}
+	return &Manager{
+		db:         db,
+		config:     config,
+		statsQueue: make(map[string]*Stats),
+		tokenQueue: make(map[string]*TokenUpdate),
+	}, nil
+}
+
+func runSqliteStartupQueries(db *sql.DB, startupQueries string) error {
+	if startupQueries != "" {
+		if _, err := db.Exec(startupQueries); err != nil {
+			return err
+		}
+	}
+	if _, err := db.Exec(sqliteBuiltinStartupQueries); err != nil {
+		return err
+	}
+	return nil
+}
+
+func setupSqliteDB(db *sql.DB) error {
+	// If 'schemaVersion' table does not exist, this must be a new database
+	rowsSV, err := db.Query(sqliteSelectSchemaVersionQuery)
+	if err != nil {
+		return setupNewSqliteDB(db)
+	}
+	defer rowsSV.Close()
+
+	// If 'schemaVersion' table exists, read version and potentially upgrade
+	schemaVersion := 0
+	if !rowsSV.Next() {
+		return errors.New("cannot determine schema version: database file may be corrupt")
+	}
+	if err := rowsSV.Scan(&schemaVersion); err != nil {
+		return err
+	}
+	rowsSV.Close()
+
+	// 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); err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+func setupNewSqliteDB(db *sql.DB) error {
+	if _, err := db.Exec(sqliteCreateTablesQueries); err != nil {
+		return err
+	}
+	if _, err := db.Exec(sqliteInsertSchemaVersion, sqliteCurrentSchemaVersion); err != nil {
+		return err
+	}
+	return nil
+}
+
+func migrateFrom1(db *sql.DB) error {
+	log.Tag(tag).Info("Migrating user database schema: from 1 to 2")
+	tx, err := db.Begin()
+	if err != nil {
+		return err
+	}
+	defer tx.Rollback()
+	// Rename user -> user_old, and create new tables
+	if _, err := tx.Exec(migrate1To2CreateTablesQueries); err != nil {
+		return err
+	}
+	// Insert users from user_old into new user table, with ID and sync_topic
+	rows, err := tx.Query(migrate1To2SelectAllOldUsernamesNoTx)
+	if err != nil {
+		return err
+	}
+	defer rows.Close()
+	usernames := make([]string, 0)
+	for rows.Next() {
+		var username string
+		if err := rows.Scan(&username); err != nil {
+			return err
+		}
+		usernames = append(usernames, username)
+	}
+	if err := rows.Close(); err != nil {
+		return err
+	}
+	for _, username := range usernames {
+		userID := util.RandomStringPrefix(userIDPrefix, userIDLength)
+		syncTopic := util.RandomStringPrefix(syncTopicPrefix, syncTopicLength)
+		if _, err := tx.Exec(migrate1To2InsertUserNoTx, userID, syncTopic, username); err != nil {
+			return err
+		}
+	}
+	// Migrate old "access" table to "user_access" and drop "access" and "user_old"
+	if _, err := tx.Exec(migrate1To2InsertFromOldTablesAndDropNoTx); err != nil {
+		return err
+	}
+	if _, err := tx.Exec(sqliteUpdateSchemaVersion, 2); err != nil {
+		return err
+	}
+	if err := tx.Commit(); err != nil {
+		return err
+	}
+	return nil
+}
+
+func migrateFrom2(db *sql.DB) error {
+	log.Tag(tag).Info("Migrating user database schema: from 2 to 3")
+	tx, err := db.Begin()
+	if err != nil {
+		return err
+	}
+	defer tx.Rollback()
+	if _, err := tx.Exec(migrate2To3UpdateQueries); err != nil {
+		return err
+	}
+	if _, err := tx.Exec(sqliteUpdateSchemaVersion, 3); err != nil {
+		return err
+	}
+	return tx.Commit()
+}
+
+func migrateFrom3(db *sql.DB) error {
+	log.Tag(tag).Info("Migrating user database schema: from 3 to 4")
+	tx, err := db.Begin()
+	if err != nil {
+		return err
+	}
+	defer tx.Rollback()
+	if _, err := tx.Exec(migrate3To4UpdateQueries); err != nil {
+		return err
+	}
+	if _, err := tx.Exec(sqliteUpdateSchemaVersion, 4); err != nil {
+		return err
+	}
+	return tx.Commit()
+}
+
+func migrateFrom4(db *sql.DB) error {
+	log.Tag(tag).Info("Migrating user database schema: from 4 to 5")
+	tx, err := db.Begin()
+	if err != nil {
+		return err
+	}
+	defer tx.Rollback()
+	if _, err := tx.Exec(migrate4To5UpdateQueries); err != nil {
+		return err
+	}
+	if _, err := tx.Exec(sqliteUpdateSchemaVersion, 5); err != nil {
+		return err
+	}
+	return tx.Commit()
+}
+
+func migrateFrom5(db *sql.DB) error {
+	log.Tag(tag).Info("Migrating user database schema: from 5 to 6")
+	tx, err := db.Begin()
+	if err != nil {
+		return err
+	}
+	defer tx.Rollback()
+	if _, err := tx.Exec(migrate5To6UpdateQueries); err != nil {
+		return err
+	}
+	if _, err := tx.Exec(sqliteUpdateSchemaVersion, 6); err != nil {
+		return err
+	}
+	return tx.Commit()
+}
+
+// isSqliteConstraintUniqueError checks if the error is a SQLite unique constraint error
+func isSqliteConstraintUniqueError(err error) bool {
+	if sqliteErr, ok := err.(sqlite3.Error); ok && sqliteErr.ExtendedCode == sqlite3.ErrConstraintUnique {
+		return true
+	}
+	return errors.Is(err, sqlite3.ErrConstraintUnique)
+}
+

user/manager_test.go

@@ -1578,7 +1578,7 @@ func checkSchemaVersion(t *testing.T, db *sql.DB) {
 
 	var schemaVersion int
 	require.Nil(t, rows.Scan(&schemaVersion))
-	require.Equal(t, currentSchemaVersion, schemaVersion)
+	require.Equal(t, sqliteCurrentSchemaVersion, schemaVersion)
 	require.Nil(t, rows.Close())
 }