mirror of
https://github.com/multipleof4/ntfy.git
synced 2026-10-08 21:05:21 +00:00
WIP: S3
This commit is contained in:
@@ -0,0 +1,25 @@
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package attachment
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import (
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"errors"
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"fmt"
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"io"
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"regexp"
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"heckel.io/ntfy/v2/model"
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"heckel.io/ntfy/v2/util"
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)
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// Store is an interface for storing and retrieving attachment files
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type Store interface {
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Write(id string, in io.Reader, limiters ...util.Limiter) (int64, error)
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Read(id string) (io.ReadCloser, int64, error)
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Remove(ids ...string) error
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Size() int64
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Remaining() int64
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}
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var (
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fileIDRegex = regexp.MustCompile(fmt.Sprintf(`^[-_A-Za-z0-9]{%d}$`, model.MessageIDLength))
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errInvalidFileID = errors.New("invalid file ID")
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)
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@@ -0,0 +1,139 @@
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package attachment
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import (
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"errors"
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"io"
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"os"
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"path/filepath"
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"sync"
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"heckel.io/ntfy/v2/log"
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"heckel.io/ntfy/v2/util"
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)
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const tagFileStore = "file_store"
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var errFileExists = errors.New("file exists")
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type fileStore struct {
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dir string
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totalSizeCurrent int64
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totalSizeLimit int64
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mu sync.Mutex
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}
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// NewFileStore creates a new file-system backed attachment store
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func NewFileStore(dir string, totalSizeLimit int64) (Store, error) {
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if err := os.MkdirAll(dir, 0700); err != nil {
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return nil, err
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}
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size, err := dirSize(dir)
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if err != nil {
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return nil, err
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}
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return &fileStore{
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dir: dir,
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totalSizeCurrent: size,
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totalSizeLimit: totalSizeLimit,
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}, nil
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}
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func (c *fileStore) Write(id string, in io.Reader, limiters ...util.Limiter) (int64, error) {
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if !fileIDRegex.MatchString(id) {
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return 0, errInvalidFileID
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}
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log.Tag(tagFileStore).Field("message_id", id).Debug("Writing attachment")
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file := filepath.Join(c.dir, id)
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if _, err := os.Stat(file); err == nil {
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return 0, errFileExists
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}
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f, err := os.OpenFile(file, os.O_CREATE|os.O_WRONLY|os.O_TRUNC, 0600)
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if err != nil {
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return 0, err
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}
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defer f.Close()
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limiters = append(limiters, util.NewFixedLimiter(c.Remaining()))
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limitWriter := util.NewLimitWriter(f, limiters...)
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size, err := io.Copy(limitWriter, in)
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if err != nil {
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os.Remove(file)
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return 0, err
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}
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if err := f.Close(); err != nil {
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os.Remove(file)
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return 0, err
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}
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c.mu.Lock()
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c.totalSizeCurrent += size
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c.mu.Unlock()
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return size, nil
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}
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func (c *fileStore) Read(id string) (io.ReadCloser, int64, error) {
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if !fileIDRegex.MatchString(id) {
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return nil, 0, errInvalidFileID
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}
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file := filepath.Join(c.dir, id)
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stat, err := os.Stat(file)
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if err != nil {
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return nil, 0, err
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}
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f, err := os.Open(file)
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if err != nil {
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return nil, 0, err
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}
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return f, stat.Size(), nil
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}
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func (c *fileStore) Remove(ids ...string) error {
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for _, id := range ids {
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if !fileIDRegex.MatchString(id) {
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return errInvalidFileID
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}
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log.Tag(tagFileStore).Field("message_id", id).Debug("Deleting attachment")
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file := filepath.Join(c.dir, id)
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if err := os.Remove(file); err != nil {
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log.Tag(tagFileStore).Field("message_id", id).Err(err).Debug("Error deleting attachment")
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}
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}
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size, err := dirSize(c.dir)
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if err != nil {
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return err
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}
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c.mu.Lock()
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c.totalSizeCurrent = size
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c.mu.Unlock()
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return nil
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}
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func (c *fileStore) Size() int64 {
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c.mu.Lock()
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defer c.mu.Unlock()
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return c.totalSizeCurrent
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}
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func (c *fileStore) Remaining() int64 {
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c.mu.Lock()
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defer c.mu.Unlock()
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remaining := c.totalSizeLimit - c.totalSizeCurrent
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if remaining < 0 {
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return 0
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}
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return remaining
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}
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func dirSize(dir string) (int64, error) {
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entries, err := os.ReadDir(dir)
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if err != nil {
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return 0, err
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}
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var size int64
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for _, e := range entries {
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info, err := e.Info()
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if err != nil {
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return 0, err
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}
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size += info.Size()
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}
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return size, nil
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}
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@@ -0,0 +1,99 @@
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package attachment
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import (
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"bytes"
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"fmt"
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"io"
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"os"
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"strings"
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"testing"
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"github.com/stretchr/testify/require"
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"heckel.io/ntfy/v2/util"
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)
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var (
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oneKilobyteArray = make([]byte, 1024)
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)
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func TestFileStore_Write_Success(t *testing.T) {
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dir, s := newTestFileStore(t)
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size, err := s.Write("abcdefghijkl", strings.NewReader("normal file"), util.NewFixedLimiter(999))
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require.Nil(t, err)
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require.Equal(t, int64(11), size)
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require.Equal(t, "normal file", readFile(t, dir+"/abcdefghijkl"))
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require.Equal(t, int64(11), s.Size())
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require.Equal(t, int64(10229), s.Remaining())
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}
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func TestFileStore_Write_Read_Success(t *testing.T) {
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_, s := newTestFileStore(t)
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size, err := s.Write("abcdefghijkl", strings.NewReader("hello world"))
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require.Nil(t, err)
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require.Equal(t, int64(11), size)
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reader, readSize, err := s.Read("abcdefghijkl")
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require.Nil(t, err)
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require.Equal(t, int64(11), readSize)
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defer reader.Close()
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data, err := io.ReadAll(reader)
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require.Nil(t, err)
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require.Equal(t, "hello world", string(data))
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}
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func TestFileStore_Write_Remove_Success(t *testing.T) {
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dir, s := newTestFileStore(t) // max = 10k (10240), each = 1k (1024)
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for i := 0; i < 10; i++ { // 10x999 = 9990
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size, err := s.Write(fmt.Sprintf("abcdefghijk%d", i), bytes.NewReader(make([]byte, 999)))
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require.Nil(t, err)
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require.Equal(t, int64(999), size)
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}
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require.Equal(t, int64(9990), s.Size())
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require.Equal(t, int64(250), s.Remaining())
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require.FileExists(t, dir+"/abcdefghijk1")
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require.FileExists(t, dir+"/abcdefghijk5")
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require.Nil(t, s.Remove("abcdefghijk1", "abcdefghijk5"))
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require.NoFileExists(t, dir+"/abcdefghijk1")
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require.NoFileExists(t, dir+"/abcdefghijk5")
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require.Equal(t, int64(7992), s.Size())
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require.Equal(t, int64(2248), s.Remaining())
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}
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func TestFileStore_Write_FailedTotalSizeLimit(t *testing.T) {
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dir, s := newTestFileStore(t)
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for i := 0; i < 10; i++ {
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size, err := s.Write(fmt.Sprintf("abcdefghijk%d", i), bytes.NewReader(oneKilobyteArray))
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require.Nil(t, err)
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require.Equal(t, int64(1024), size)
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}
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_, err := s.Write("abcdefghijkX", bytes.NewReader(oneKilobyteArray))
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require.Equal(t, util.ErrLimitReached, err)
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require.NoFileExists(t, dir+"/abcdefghijkX")
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}
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func TestFileStore_Write_FailedAdditionalLimiter(t *testing.T) {
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dir, s := newTestFileStore(t)
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_, err := s.Write("abcdefghijkl", bytes.NewReader(make([]byte, 1001)), util.NewFixedLimiter(1000))
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require.Equal(t, util.ErrLimitReached, err)
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require.NoFileExists(t, dir+"/abcdefghijkl")
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}
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func TestFileStore_Read_NotFound(t *testing.T) {
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_, s := newTestFileStore(t)
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_, _, err := s.Read("abcdefghijkl")
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require.Error(t, err)
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}
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func newTestFileStore(t *testing.T) (dir string, store Store) {
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dir = t.TempDir()
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store, err := NewFileStore(dir, 10*1024)
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require.Nil(t, err)
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return dir, store
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}
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func readFile(t *testing.T, f string) string {
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b, err := os.ReadFile(f)
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require.Nil(t, err)
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return string(b)
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}
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@@ -0,0 +1,255 @@
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package attachment
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import (
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"context"
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"fmt"
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"io"
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"net/url"
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"strings"
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"sync"
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"github.com/aws/aws-sdk-go-v2/aws"
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"github.com/aws/aws-sdk-go-v2/credentials"
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"github.com/aws/aws-sdk-go-v2/service/s3"
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s3types "github.com/aws/aws-sdk-go-v2/service/s3/types"
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"heckel.io/ntfy/v2/log"
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"heckel.io/ntfy/v2/util"
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)
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const tagS3Store = "s3_store"
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type s3Store struct {
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client *s3.Client
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bucket string
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prefix string
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totalSizeCurrent int64
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totalSizeLimit int64
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mu sync.Mutex
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}
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// NewS3Store creates a new S3-backed attachment store. The s3URL must be in the format:
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//
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// s3://ACCESS_KEY:SECRET_KEY@BUCKET[/PREFIX]?region=REGION[&endpoint=ENDPOINT]
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func NewS3Store(s3URL string, totalSizeLimit int64) (Store, error) {
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bucket, prefix, client, err := parseS3URL(s3URL)
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if err != nil {
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return nil, err
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}
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store := &s3Store{
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client: client,
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bucket: bucket,
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prefix: prefix,
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totalSizeLimit: totalSizeLimit,
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}
|
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if totalSizeLimit > 0 {
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size, err := store.computeSize()
|
||||
if err != nil {
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return nil, fmt.Errorf("s3 store: failed to compute initial size: %w", err)
|
||||
}
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store.totalSizeCurrent = size
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}
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return store, nil
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}
|
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|
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func parseS3URL(s3URL string) (bucket string, prefix string, client *s3.Client, err error) {
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u, err := url.Parse(s3URL)
|
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if err != nil {
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return "", "", nil, fmt.Errorf("s3 store: invalid URL: %w", err)
|
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}
|
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if u.Scheme != "s3" {
|
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return "", "", nil, fmt.Errorf("s3 store: URL scheme must be 's3', got '%s'", u.Scheme)
|
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}
|
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if u.Host == "" {
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return "", "", nil, fmt.Errorf("s3 store: bucket name must be specified as host")
|
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}
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bucket = u.Host
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prefix = strings.TrimPrefix(u.Path, "/")
|
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|
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accessKey := u.User.Username()
|
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secretKey, _ := u.User.Password()
|
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if accessKey == "" || secretKey == "" {
|
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return "", "", nil, fmt.Errorf("s3 store: access key and secret key must be specified in URL")
|
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}
|
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|
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region := u.Query().Get("region")
|
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if region == "" {
|
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return "", "", nil, fmt.Errorf("s3 store: region query parameter is required")
|
||||
}
|
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endpoint := u.Query().Get("endpoint")
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|
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cfg := aws.Config{
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Region: region,
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Credentials: credentials.NewStaticCredentialsProvider(accessKey, secretKey, ""),
|
||||
}
|
||||
var opts []func(*s3.Options)
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||||
if endpoint != "" {
|
||||
opts = append(opts, func(o *s3.Options) {
|
||||
o.BaseEndpoint = aws.String(endpoint)
|
||||
o.UsePathStyle = true
|
||||
})
|
||||
}
|
||||
client = s3.NewFromConfig(cfg, opts...)
|
||||
return bucket, prefix, client, nil
|
||||
}
|
||||
|
||||
func (c *s3Store) objectKey(id string) string {
|
||||
if c.prefix != "" {
|
||||
return c.prefix + "/" + id
|
||||
}
|
||||
return id
|
||||
}
|
||||
|
||||
func (c *s3Store) Write(id string, in io.Reader, limiters ...util.Limiter) (int64, error) {
|
||||
if !fileIDRegex.MatchString(id) {
|
||||
return 0, errInvalidFileID
|
||||
}
|
||||
log.Tag(tagS3Store).Field("message_id", id).Debug("Writing attachment to S3")
|
||||
|
||||
// Use io.Pipe so we can apply limiters while streaming to S3
|
||||
pr, pw := io.Pipe()
|
||||
var writeErr error
|
||||
var size int64
|
||||
|
||||
limiters = append(limiters, util.NewFixedLimiter(c.Remaining()))
|
||||
go func() {
|
||||
limitWriter := util.NewLimitWriter(pw, limiters...)
|
||||
size, writeErr = io.Copy(limitWriter, in)
|
||||
if writeErr != nil {
|
||||
pw.CloseWithError(writeErr)
|
||||
} else {
|
||||
pw.Close()
|
||||
}
|
||||
}()
|
||||
|
||||
key := c.objectKey(id)
|
||||
_, err := c.client.PutObject(context.Background(), &s3.PutObjectInput{
|
||||
Bucket: aws.String(c.bucket),
|
||||
Key: aws.String(key),
|
||||
Body: pr,
|
||||
})
|
||||
if err != nil {
|
||||
// If the limiter caused the error, return the original write error
|
||||
if writeErr != nil {
|
||||
return 0, writeErr
|
||||
}
|
||||
return 0, fmt.Errorf("s3 store: PutObject failed: %w", err)
|
||||
}
|
||||
if writeErr != nil {
|
||||
// The write goroutine failed but PutObject somehow succeeded; clean up
|
||||
_, _ = c.client.DeleteObject(context.Background(), &s3.DeleteObjectInput{
|
||||
Bucket: aws.String(c.bucket),
|
||||
Key: aws.String(key),
|
||||
})
|
||||
return 0, writeErr
|
||||
}
|
||||
|
||||
c.mu.Lock()
|
||||
c.totalSizeCurrent += size
|
||||
c.mu.Unlock()
|
||||
return size, nil
|
||||
}
|
||||
|
||||
func (c *s3Store) Read(id string) (io.ReadCloser, int64, error) {
|
||||
if !fileIDRegex.MatchString(id) {
|
||||
return nil, 0, errInvalidFileID
|
||||
}
|
||||
key := c.objectKey(id)
|
||||
resp, err := c.client.GetObject(context.Background(), &s3.GetObjectInput{
|
||||
Bucket: aws.String(c.bucket),
|
||||
Key: aws.String(key),
|
||||
})
|
||||
if err != nil {
|
||||
return nil, 0, fmt.Errorf("s3 store: GetObject failed: %w", err)
|
||||
}
|
||||
var size int64
|
||||
if resp.ContentLength != nil {
|
||||
size = *resp.ContentLength
|
||||
}
|
||||
return resp.Body, size, nil
|
||||
}
|
||||
|
||||
func (c *s3Store) Remove(ids ...string) error {
|
||||
for _, id := range ids {
|
||||
if !fileIDRegex.MatchString(id) {
|
||||
return errInvalidFileID
|
||||
}
|
||||
}
|
||||
// S3 DeleteObjects supports up to 1000 keys per call
|
||||
for i := 0; i < len(ids); i += 1000 {
|
||||
end := i + 1000
|
||||
if end > len(ids) {
|
||||
end = len(ids)
|
||||
}
|
||||
batch := ids[i:end]
|
||||
objects := make([]s3types.ObjectIdentifier, len(batch))
|
||||
for j, id := range batch {
|
||||
log.Tag(tagS3Store).Field("message_id", id).Debug("Deleting attachment from S3")
|
||||
key := c.objectKey(id)
|
||||
objects[j] = s3types.ObjectIdentifier{
|
||||
Key: aws.String(key),
|
||||
}
|
||||
}
|
||||
_, err := c.client.DeleteObjects(context.Background(), &s3.DeleteObjectsInput{
|
||||
Bucket: aws.String(c.bucket),
|
||||
Delete: &s3types.Delete{
|
||||
Objects: objects,
|
||||
Quiet: aws.Bool(true),
|
||||
},
|
||||
})
|
||||
if err != nil {
|
||||
return fmt.Errorf("s3 store: DeleteObjects failed: %w", err)
|
||||
}
|
||||
}
|
||||
// Recalculate totalSizeCurrent via ListObjectsV2 (matches fileStore's dirSize rescan pattern)
|
||||
size, err := c.computeSize()
|
||||
if err != nil {
|
||||
return fmt.Errorf("s3 store: failed to compute size after remove: %w", err)
|
||||
}
|
||||
c.mu.Lock()
|
||||
c.totalSizeCurrent = size
|
||||
c.mu.Unlock()
|
||||
return nil
|
||||
}
|
||||
|
||||
func (c *s3Store) Size() int64 {
|
||||
c.mu.Lock()
|
||||
defer c.mu.Unlock()
|
||||
return c.totalSizeCurrent
|
||||
}
|
||||
|
||||
func (c *s3Store) Remaining() int64 {
|
||||
c.mu.Lock()
|
||||
defer c.mu.Unlock()
|
||||
remaining := c.totalSizeLimit - c.totalSizeCurrent
|
||||
if remaining < 0 {
|
||||
return 0
|
||||
}
|
||||
return remaining
|
||||
}
|
||||
|
||||
func (c *s3Store) computeSize() (int64, error) {
|
||||
var size int64
|
||||
paginator := s3.NewListObjectsV2Paginator(c.client, &s3.ListObjectsV2Input{
|
||||
Bucket: aws.String(c.bucket),
|
||||
Prefix: aws.String(c.prefixForList()),
|
||||
})
|
||||
for paginator.HasMorePages() {
|
||||
page, err := paginator.NextPage(context.Background())
|
||||
if err != nil {
|
||||
return 0, err
|
||||
}
|
||||
for _, obj := range page.Contents {
|
||||
if obj.Size != nil {
|
||||
size += *obj.Size
|
||||
}
|
||||
}
|
||||
}
|
||||
return size, nil
|
||||
}
|
||||
|
||||
func (c *s3Store) prefixForList() string {
|
||||
if c.prefix != "" {
|
||||
return c.prefix + "/"
|
||||
}
|
||||
return ""
|
||||
}
|
||||
@@ -0,0 +1,76 @@
|
||||
package attachment
|
||||
|
||||
import (
|
||||
"testing"
|
||||
|
||||
"github.com/stretchr/testify/require"
|
||||
)
|
||||
|
||||
func TestParseS3URL_Success(t *testing.T) {
|
||||
bucket, prefix, client, err := parseS3URL("s3://AKID:SECRET@my-bucket/attachments?region=us-east-1")
|
||||
require.Nil(t, err)
|
||||
require.Equal(t, "my-bucket", bucket)
|
||||
require.Equal(t, "attachments", prefix)
|
||||
require.NotNil(t, client)
|
||||
}
|
||||
|
||||
func TestParseS3URL_NoPrefix(t *testing.T) {
|
||||
bucket, prefix, client, err := parseS3URL("s3://AKID:SECRET@my-bucket?region=us-east-1")
|
||||
require.Nil(t, err)
|
||||
require.Equal(t, "my-bucket", bucket)
|
||||
require.Equal(t, "", prefix)
|
||||
require.NotNil(t, client)
|
||||
}
|
||||
|
||||
func TestParseS3URL_WithEndpoint(t *testing.T) {
|
||||
bucket, prefix, client, err := parseS3URL("s3://AKID:SECRET@my-bucket/prefix?region=us-east-1&endpoint=https://s3.example.com")
|
||||
require.Nil(t, err)
|
||||
require.Equal(t, "my-bucket", bucket)
|
||||
require.Equal(t, "prefix", prefix)
|
||||
require.NotNil(t, client)
|
||||
}
|
||||
|
||||
func TestParseS3URL_NestedPrefix(t *testing.T) {
|
||||
bucket, prefix, _, err := parseS3URL("s3://AKID:SECRET@my-bucket/a/b/c?region=us-east-1")
|
||||
require.Nil(t, err)
|
||||
require.Equal(t, "my-bucket", bucket)
|
||||
require.Equal(t, "a/b/c", prefix)
|
||||
}
|
||||
|
||||
func TestParseS3URL_MissingRegion(t *testing.T) {
|
||||
_, _, _, err := parseS3URL("s3://AKID:SECRET@my-bucket")
|
||||
require.Error(t, err)
|
||||
require.Contains(t, err.Error(), "region")
|
||||
}
|
||||
|
||||
func TestParseS3URL_MissingCredentials(t *testing.T) {
|
||||
_, _, _, err := parseS3URL("s3://my-bucket?region=us-east-1")
|
||||
require.Error(t, err)
|
||||
require.Contains(t, err.Error(), "access key")
|
||||
}
|
||||
|
||||
func TestParseS3URL_MissingSecretKey(t *testing.T) {
|
||||
_, _, _, err := parseS3URL("s3://AKID@my-bucket?region=us-east-1")
|
||||
require.Error(t, err)
|
||||
require.Contains(t, err.Error(), "secret key")
|
||||
}
|
||||
|
||||
func TestParseS3URL_WrongScheme(t *testing.T) {
|
||||
_, _, _, err := parseS3URL("http://AKID:SECRET@my-bucket?region=us-east-1")
|
||||
require.Error(t, err)
|
||||
require.Contains(t, err.Error(), "scheme")
|
||||
}
|
||||
|
||||
func TestParseS3URL_EmptyBucket(t *testing.T) {
|
||||
_, _, _, err := parseS3URL("s3://AKID:SECRET@?region=us-east-1")
|
||||
require.Error(t, err)
|
||||
require.Contains(t, err.Error(), "bucket")
|
||||
}
|
||||
|
||||
func TestS3Store_ObjectKey(t *testing.T) {
|
||||
s := &s3Store{prefix: "attachments"}
|
||||
require.Equal(t, "attachments/abcdefghijkl", s.objectKey("abcdefghijkl"))
|
||||
|
||||
s2 := &s3Store{prefix: ""}
|
||||
require.Equal(t, "abcdefghijkl", s2.objectKey("abcdefghijkl"))
|
||||
}
|
||||
Reference in New Issue
Block a user