docs/configuration/media.md

@@ -18,24 +18,6 @@
 # Default: 40MiB (41943040 bytes)
 media-local-max-size: 40MiB
 
-# Size. Size in bytes of max image size referred to on /api/v_/instance endpoints,
-# used by applications like Tusky to automatically scale locally uploaded media.
-#
-# Leaving this unset will default to media-local-max-size.
-#
-# Examples: [64, 500, 5MiB, 5MB, 50M]
-# Default: unset
-media-image-size-hint: 5MiB
-
-# Size. Size in bytes of max video size referred to on /api/v_/instance endpoints,
-# used by applications like Tusky to automatically scale locally uploaded media.
-#
-# Leaving this unset will default to media-local-max-size.
-#
-# Examples: [64, 4096, 4MiB, 4MB, 40M]
-# Default: unset
-media-video-size-hint: 40MiB
-
 # Size. Max size in bytes of media to download from other instances.
 #
 # Lowering this limit may cause your instance not to fetch post media.

example/config.yaml

@@ -471,24 +471,6 @@ accounts-custom-css-length: 10000
 # Default: 40MiB (41943040 bytes)
 media-local-max-size: 40MiB
 
-# Size. Size in bytes of max image size referred to on /api/v_/instance endpoints,
-# used by applications like Tusky to automatically scale locally uploaded media.
-#
-# Leaving this unset will default to media-local-max-size.
-#
-# Examples: [64, 500, 5MiB, 5MB, 50M]
-# Default: unset
-media-image-size-hint: 5MiB
-
-# Size. Size in bytes of max video size referred to on /api/v_/instance endpoints,
-# used by applications like Tusky to automatically scale locally uploaded media.
-#
-# Leaving this unset will default to media-local-max-size.
-#
-# Examples: [64, 4096, 4MiB, 4MB, 40M]
-# Default: unset
-media-video-size-hint: 40MiB
-
 # Size. Max size in bytes of media to download from other instances.
 #
 # Lowering this limit may cause your instance not to fetch post media.

go.mod

@@ -17,6 +17,7 @@ require (
 	codeberg.org/gruf/go-kv v1.6.5
 	codeberg.org/gruf/go-list v0.0.0-20240425093752-494db03d641f
 	codeberg.org/gruf/go-mempool v0.0.0-20240507125005-cef10d64a760
+	codeberg.org/gruf/go-mimetypes v1.2.0
 	codeberg.org/gruf/go-mutexes v1.5.1
 	codeberg.org/gruf/go-runners v1.6.3
 	codeberg.org/gruf/go-sched v1.2.4

go.sum

@@ -62,6 +62,8 @@ codeberg.org/gruf/go-maps v1.0.4 h1:K+Ww4vvR3TZqm5jqrKVirmguZwa3v1VUvmig2SE8uxY=
 codeberg.org/gruf/go-maps v1.0.4/go.mod h1:ASX7osM7kFwt5O8GfGflcFjrwYGD8eIuRLl/oMjhEi8=
 codeberg.org/gruf/go-mempool v0.0.0-20240507125005-cef10d64a760 h1:m2/UCRXhjDwAg4vyji6iKCpomKw6P4PmBOUi5DvAMH4=
 codeberg.org/gruf/go-mempool v0.0.0-20240507125005-cef10d64a760/go.mod h1:E3RcaCFNq4zXpvaJb8lfpPqdUAmSkP5F1VmMiEUYTEk=
+codeberg.org/gruf/go-mimetypes v1.2.0 h1:3rZGXY/SkNYbamiddWXs2gETXIBkGIeWYnbWpp2OEbc=
+codeberg.org/gruf/go-mimetypes v1.2.0/go.mod h1:YiUWRj/nAdJQc+UFRvcsL6xXZsbc6b6Ic739ycEO8Yg=
 codeberg.org/gruf/go-mutexes v1.5.1 h1:xICU0WXhWr6wf+Iror4eE3xT+xnXNPrO6o77D/G6QuY=
 codeberg.org/gruf/go-mutexes v1.5.1/go.mod h1:rPEqQ/y6CmGITaZ3GPTMQVsoZAOzbsAHyIaLsJcOqVE=
 codeberg.org/gruf/go-runners v1.6.3 h1:To/AX7eTrWuXrTkA3RA01YTP5zha1VZ68LQ+0D4RY7E=

internal/api/client/instance/instancepatch_test.go

@@ -120,7 +120,7 @@ func (suite *InstancePatchTestSuite) TestInstancePatch1() {
         "image/apng",
         "audio/ogg",
         "video/ogg",
-        "audio/mp4",
+        "audio/x-m4a",
         "video/mp4",
         "video/quicktime",
         "audio/x-ms-wma",
@@ -130,10 +130,10 @@ func (suite *InstancePatchTestSuite) TestInstancePatch1() {
         "video/x-matroska"
       ],
       "image_size_limit": 41943040,
-      "image_matrix_limit": 9223372036854775807,
+      "image_matrix_limit": 16777216,
       "video_size_limit": 41943040,
-      "video_frame_rate_limit": 9223372036854775807,
-      "video_matrix_limit": 9223372036854775807
+      "video_frame_rate_limit": 60,
+      "video_matrix_limit": 16777216
     },
     "polls": {
       "max_options": 6,
@@ -261,7 +261,7 @@ func (suite *InstancePatchTestSuite) TestInstancePatch2() {
         "image/apng",
         "audio/ogg",
         "video/ogg",
-        "audio/mp4",
+        "audio/x-m4a",
         "video/mp4",
         "video/quicktime",
         "audio/x-ms-wma",
@@ -271,10 +271,10 @@ func (suite *InstancePatchTestSuite) TestInstancePatch2() {
         "video/x-matroska"
       ],
       "image_size_limit": 41943040,
-      "image_matrix_limit": 9223372036854775807,
+      "image_matrix_limit": 16777216,
       "video_size_limit": 41943040,
-      "video_frame_rate_limit": 9223372036854775807,
-      "video_matrix_limit": 9223372036854775807
+      "video_frame_rate_limit": 60,
+      "video_matrix_limit": 16777216
     },
     "polls": {
       "max_options": 6,
@@ -402,7 +402,7 @@ func (suite *InstancePatchTestSuite) TestInstancePatch3() {
         "image/apng",
         "audio/ogg",
         "video/ogg",
-        "audio/mp4",
+        "audio/x-m4a",
         "video/mp4",
         "video/quicktime",
         "audio/x-ms-wma",
@@ -412,10 +412,10 @@ func (suite *InstancePatchTestSuite) TestInstancePatch3() {
         "video/x-matroska"
       ],
       "image_size_limit": 41943040,
-      "image_matrix_limit": 9223372036854775807,
+      "image_matrix_limit": 16777216,
       "video_size_limit": 41943040,
-      "video_frame_rate_limit": 9223372036854775807,
-      "video_matrix_limit": 9223372036854775807
+      "video_frame_rate_limit": 60,
+      "video_matrix_limit": 16777216
     },
     "polls": {
       "max_options": 6,
@@ -594,7 +594,7 @@ func (suite *InstancePatchTestSuite) TestInstancePatch6() {
         "image/apng",
         "audio/ogg",
         "video/ogg",
-        "audio/mp4",
+        "audio/x-m4a",
         "video/mp4",
         "video/quicktime",
         "audio/x-ms-wma",
@@ -604,10 +604,10 @@ func (suite *InstancePatchTestSuite) TestInstancePatch6() {
         "video/x-matroska"
       ],
       "image_size_limit": 41943040,
-      "image_matrix_limit": 9223372036854775807,
+      "image_matrix_limit": 16777216,
       "video_size_limit": 41943040,
-      "video_frame_rate_limit": 9223372036854775807,
-      "video_matrix_limit": 9223372036854775807
+      "video_frame_rate_limit": 60,
+      "video_matrix_limit": 16777216
     },
     "polls": {
       "max_options": 6,
@@ -757,7 +757,7 @@ func (suite *InstancePatchTestSuite) TestInstancePatch8() {
         "image/apng",
         "audio/ogg",
         "video/ogg",
-        "audio/mp4",
+        "audio/x-m4a",
         "video/mp4",
         "video/quicktime",
         "audio/x-ms-wma",
@@ -767,10 +767,10 @@ func (suite *InstancePatchTestSuite) TestInstancePatch8() {
         "video/x-matroska"
       ],
       "image_size_limit": 41943040,
-      "image_matrix_limit": 9223372036854775807,
+      "image_matrix_limit": 16777216,
       "video_size_limit": 41943040,
-      "video_frame_rate_limit": 9223372036854775807,
-      "video_matrix_limit": 9223372036854775807
+      "video_frame_rate_limit": 60,
+      "video_matrix_limit": 16777216
     },
     "polls": {
       "max_options": 6,
@@ -939,7 +939,7 @@ func (suite *InstancePatchTestSuite) TestInstancePatch9() {
         "image/apng",
         "audio/ogg",
         "video/ogg",
-        "audio/mp4",
+        "audio/x-m4a",
         "video/mp4",
         "video/quicktime",
         "audio/x-ms-wma",
@@ -949,10 +949,10 @@ func (suite *InstancePatchTestSuite) TestInstancePatch9() {
         "video/x-matroska"
       ],
       "image_size_limit": 41943040,
-      "image_matrix_limit": 9223372036854775807,
+      "image_matrix_limit": 16777216,
       "video_size_limit": 41943040,
-      "video_frame_rate_limit": 9223372036854775807,
-      "video_matrix_limit": 9223372036854775807
+      "video_frame_rate_limit": 60,
+      "video_matrix_limit": 16777216
     },
     "polls": {
       "max_options": 6,

internal/config/config.go

@@ -98,8 +98,6 @@ type Configuration struct {
 	MediaRemoteCacheDays     int           `name:"media-remote-cache-days" usage:"Number of days to locally cache media from remote instances. If set to 0, remote media will be kept indefinitely."`
 	MediaEmojiLocalMaxSize   bytesize.Size `name:"media-emoji-local-max-size" usage:"Max size in bytes of emojis uploaded to this instance via the admin API."`
 	MediaEmojiRemoteMaxSize  bytesize.Size `name:"media-emoji-remote-max-size" usage:"Max size in bytes of emojis to download from other instances."`
-	MediaImageSizeHint       bytesize.Size `name:"media-image-size-hint" usage:"Size in bytes of max image size referred to on /api/v_/instance endpoints (else, local max size)"`
-	MediaVideoSizeHint       bytesize.Size `name:"media-video-size-hint" usage:"Size in bytes of max video size referred to on /api/v_/instance endpoints (else, local max size)"`
 	MediaLocalMaxSize        bytesize.Size `name:"media-local-max-size" usage:"Max size in bytes of media uploaded to this instance via API"`
 	MediaRemoteMaxSize       bytesize.Size `name:"media-remote-max-size" usage:"Max size in bytes of media to download from other instances"`
 	MediaCleanupFrom         string        `name:"media-cleanup-from" usage:"Time of day from which to start running media cleanup/prune jobs. Should be in the format 'hh:mm:ss', eg., '15:04:05'."`

internal/config/helpers.gen.go

@@ -1225,56 +1225,6 @@ func GetMediaEmojiRemoteMaxSize() bytesize.Size { return global.GetMediaEmojiRem
 // SetMediaEmojiRemoteMaxSize safely sets the value for global configuration 'MediaEmojiRemoteMaxSize' field
 func SetMediaEmojiRemoteMaxSize(v bytesize.Size) { global.SetMediaEmojiRemoteMaxSize(v) }
 
-// GetMediaImageSizeHint safely fetches the Configuration value for state's 'MediaImageSizeHint' field
-func (st *ConfigState) GetMediaImageSizeHint() (v bytesize.Size) {
-	st.mutex.RLock()
-	v = st.config.MediaImageSizeHint
-	st.mutex.RUnlock()
-	return
-}
-
-// SetMediaImageSizeHint safely sets the Configuration value for state's 'MediaImageSizeHint' field
-func (st *ConfigState) SetMediaImageSizeHint(v bytesize.Size) {
-	st.mutex.Lock()
-	defer st.mutex.Unlock()
-	st.config.MediaImageSizeHint = v
-	st.reloadToViper()
-}
-
-// MediaImageSizeHintFlag returns the flag name for the 'MediaImageSizeHint' field
-func MediaImageSizeHintFlag() string { return "media-image-size-hint" }
-
-// GetMediaImageSizeHint safely fetches the value for global configuration 'MediaImageSizeHint' field
-func GetMediaImageSizeHint() bytesize.Size { return global.GetMediaImageSizeHint() }
-
-// SetMediaImageSizeHint safely sets the value for global configuration 'MediaImageSizeHint' field
-func SetMediaImageSizeHint(v bytesize.Size) { global.SetMediaImageSizeHint(v) }
-
-// GetMediaVideoSizeHint safely fetches the Configuration value for state's 'MediaVideoSizeHint' field
-func (st *ConfigState) GetMediaVideoSizeHint() (v bytesize.Size) {
-	st.mutex.RLock()
-	v = st.config.MediaVideoSizeHint
-	st.mutex.RUnlock()
-	return
-}
-
-// SetMediaVideoSizeHint safely sets the Configuration value for state's 'MediaVideoSizeHint' field
-func (st *ConfigState) SetMediaVideoSizeHint(v bytesize.Size) {
-	st.mutex.Lock()
-	defer st.mutex.Unlock()
-	st.config.MediaVideoSizeHint = v
-	st.reloadToViper()
-}
-
-// MediaVideoSizeHintFlag returns the flag name for the 'MediaVideoSizeHint' field
-func MediaVideoSizeHintFlag() string { return "media-video-size-hint" }
-
-// GetMediaVideoSizeHint safely fetches the value for global configuration 'MediaVideoSizeHint' field
-func GetMediaVideoSizeHint() bytesize.Size { return global.GetMediaVideoSizeHint() }
-
-// SetMediaVideoSizeHint safely sets the value for global configuration 'MediaVideoSizeHint' field
-func SetMediaVideoSizeHint(v bytesize.Size) { global.SetMediaVideoSizeHint(v) }
-
 // GetMediaLocalMaxSize safely fetches the Configuration value for state's 'MediaLocalMaxSize' field
 func (st *ConfigState) GetMediaLocalMaxSize() (v bytesize.Size) {
 	st.mutex.RLock()

internal/media/ffmpeg.go

@@ -323,14 +323,14 @@ type videoStream struct {
 //
 // Note the checks for (len(res.video) > 0) may catch some audio files with embedded
 // album art as video, but i blame that on the hellscape that is media filetypes.
-func (res *result) GetFileType() (gtsmodel.FileType, string, string) {
+//
+// TODO: we can update this code to also return a mimetype and avoid later parsing!
+func (res *result) GetFileType() (gtsmodel.FileType, string) {
 	switch res.format {
 	case "mpeg":
-		return gtsmodel.FileTypeVideo,
-			"video/mpeg", "mpeg"
+		return gtsmodel.FileTypeVideo, "mpeg"
 	case "mjpeg":
-		return gtsmodel.FileTypeVideo,
-			"video/x-motion-jpeg", "mjpeg"
+		return gtsmodel.FileTypeVideo, "mjpeg"
 	case "mov,mp4,m4a,3gp,3g2,mj2":
 		switch {
 		case len(res.video) > 0:
@@ -338,70 +338,55 @@ func (res *result) GetFileType() (gtsmodel.FileType, string, string) {
 				res.duration <= 30 {
 				// Short, soundless
 				// video file aka gifv.
-				return gtsmodel.FileTypeGifv,
-					"video/mp4", "mp4"
+				return gtsmodel.FileTypeGifv, "mp4"
 			} else {
 				// Video file (with or without audio).
-				return gtsmodel.FileTypeVideo,
-					"video/mp4", "mp4"
+				return gtsmodel.FileTypeVideo, "mp4"
 			}
 		case len(res.audio) > 0 &&
 			res.audio[0].codec == "aac":
 			// m4a only supports [aac] audio.
-			return gtsmodel.FileTypeAudio,
-				"audio/mp4", "m4a"
+			return gtsmodel.FileTypeAudio, "m4a"
 		}
 	case "apng":
-		return gtsmodel.FileTypeImage,
-			"image/apng", "apng"
+		return gtsmodel.FileTypeImage, "apng"
 	case "png_pipe":
-		return gtsmodel.FileTypeImage,
-			"image/png", "png"
+		return gtsmodel.FileTypeImage, "png"
 	case "image2", "image2pipe", "jpeg_pipe":
-		return gtsmodel.FileTypeImage,
-			"image/jpeg", "jpeg"
+		return gtsmodel.FileTypeImage, "jpeg"
 	case "webp", "webp_pipe":
-		return gtsmodel.FileTypeImage,
-			"image/webp", "webp"
+		return gtsmodel.FileTypeImage, "webp"
 	case "gif":
-		return gtsmodel.FileTypeImage,
-			"image/gif", "gif"
+		return gtsmodel.FileTypeImage, "gif"
 	case "mp3":
 		if len(res.audio) > 0 {
 			switch res.audio[0].codec {
 			case "mp2":
-				return gtsmodel.FileTypeAudio,
-					"audio/mp2", "mp2"
+				return gtsmodel.FileTypeAudio, "mp2"
 			case "mp3":
-				return gtsmodel.FileTypeAudio,
-					"audio/mp3", "mp3"
+				return gtsmodel.FileTypeAudio, "mp3"
 			}
 		}
 	case "asf":
 		switch {
 		case len(res.video) > 0:
-			return gtsmodel.FileTypeVideo,
-				"video/x-ms-wmv", "wmv"
+			return gtsmodel.FileTypeVideo, "wmv"
 		case len(res.audio) > 0:
-			return gtsmodel.FileTypeAudio,
-				"audio/x-ms-wma", "wma"
+			return gtsmodel.FileTypeAudio, "wma"
 		}
 	case "ogg":
 		if len(res.video) > 0 {
 			switch res.video[0].codec {
 			case "theora", "dirac": // daala, tarkin
-				return gtsmodel.FileTypeVideo,
-					"video/ogg", "ogv"
+				return gtsmodel.FileTypeVideo, "ogv"
 			}
 		}
 		if len(res.audio) > 0 {
 			switch res.audio[0].codec {
 			case "opus", "libopus":
-				return gtsmodel.FileTypeAudio,
-					"audio/opus", "opus"
+				return gtsmodel.FileTypeAudio, "opus"
 			default:
-				return gtsmodel.FileTypeAudio,
-					"audio/ogg", "ogg"
+				return gtsmodel.FileTypeAudio, "ogg"
 			}
 		}
 	case "matroska,webm":
@@ -426,27 +411,21 @@ func (res *result) GetFileType() (gtsmodel.FileType, string, string) {
 			}
 
 			if isWebm {
-				// Check valid webm codec config.
-				return gtsmodel.FileTypeVideo,
-					"video/webm", "webm"
+				// Check for valid webm codec config.
+				return gtsmodel.FileTypeVideo, "webm"
 			}
 
 			// All else falls under generic mkv.
-			return gtsmodel.FileTypeVideo,
-				"video/x-matroska", "mkv"
+			return gtsmodel.FileTypeVideo, "mkv"
 		case len(res.audio) > 0:
-			return gtsmodel.FileTypeAudio,
-				"audio/x-matroska", "mka"
+			return gtsmodel.FileTypeAudio, "mka"
 		}
 	case "avi":
-		return gtsmodel.FileTypeVideo,
-			"video/x-msvideo", "avi"
+		return gtsmodel.FileTypeVideo, "avi"
 	case "flac":
-		return gtsmodel.FileTypeAudio,
-			"audio/flac", "flac"
+		return gtsmodel.FileTypeAudio, "flac"
 	}
-	return gtsmodel.FileTypeUnknown,
-		"", res.format
+	return gtsmodel.FileTypeUnknown, res.format
 }
 
 // ImageMeta extracts image metadata contained within ffprobe'd media result streams.

internal/media/ffmpeg/ffprobe.go

@@ -40,7 +40,7 @@ func InitFfprobe(ctx context.Context, max int) error {
 
 // Ffprobe runs the given arguments with an instance of ffprobe.
 func Ffprobe(ctx context.Context, args Args) (uint32, error) {
-	return ffprobeRunner.Run(ctx, func() (uint32, error) {
+	return ffmpegRunner.Run(ctx, func() (uint32, error) {
 		return wasm.Run(ctx, runtime, ffprobe, args)
 	})
 }

internal/media/manager.go

@@ -56,7 +56,7 @@
 	"video/ogg", // .ogv
 
 	// mpeg4 types
-	"audio/mp4",       // .m4a
+	"audio/x-m4a",     // .m4a
 	"video/mp4",       // .mp4
 	"video/quicktime", // .mov
 

internal/media/manager_test.go

@@ -664,7 +664,7 @@ func (suite *ManagerTestSuite) TestOpusProcess() {
 		Duration: util.Ptr(float32(122.10006)),
 		Bitrate:  util.Ptr(uint64(116426)),
 	}, attachment.FileMeta.Original)
-	suite.Equal("audio/opus", attachment.File.ContentType)
+	suite.Equal("audio/ogg", attachment.File.ContentType)
 	suite.Equal(1776956, attachment.File.FileSize)
 	suite.Empty(attachment.Blurhash)
 

internal/media/processingemoji.go

@@ -163,10 +163,9 @@ func (p *ProcessingEmoji) store(ctx context.Context) error {
 	}
 
 	var ext string
-	var fileType gtsmodel.FileType
 
-	// Get abstract file type, mimetype and ext from ffprobe data.
-	fileType, p.emoji.ImageContentType, ext = result.GetFileType()
+	// Get type from ffprobe format data.
+	fileType, ext := result.GetFileType()
 	if fileType != gtsmodel.FileTypeImage {
 		return gtserror.Newf("unsupported emoji filetype: %s (%s)", fileType, ext)
 	}
@@ -217,6 +216,10 @@ func (p *ProcessingEmoji) store(ctx context.Context) error {
 		"png",
 	)
 
+	// Get mimetype for the file container
+	// type, falling back to generic data.
+	p.emoji.ImageContentType = getMimeType(ext)
+
 	// Set the known emoji static content type.
 	p.emoji.ImageStaticContentType = "image/png"
 

internal/media/processingmedia.go

@@ -186,8 +186,8 @@ func (p *ProcessingMedia) store(ctx context.Context) error {
 	p.media.FileMeta.Original.Duration = util.PtrIf(float32(result.duration))
 	p.media.FileMeta.Original.Bitrate = util.PtrIf(result.bitrate)
 
-	// Set generic media type and mimetype from ffprobe format data.
-	p.media.Type, p.media.File.ContentType, ext = result.GetFileType()
+	// Set media type from ffprobe format data.
+	p.media.Type, ext = result.GetFileType()
 
 	// Add file extension to path.
 	newpath := temppath + "." + ext
@@ -236,10 +236,10 @@ func (p *ProcessingMedia) store(ctx context.Context) error {
 
 		// Determine if blurhash needs generating.
 		needBlurhash := (p.media.Blurhash == "")
-		var newBlurhash, mimeType string
+		var newBlurhash string
 
-		// Generate thumbnail, and new blurhash if needed from temp media.
-		thumbpath, mimeType, newBlurhash, err = generateThumb(ctx, temppath,
+		// Generate thumbnail, and new blurhash if need from media.
+		thumbpath, newBlurhash, err = generateThumb(ctx, temppath,
 			thumbWidth,
 			thumbHeight,
 			result.orientation,
@@ -250,9 +250,6 @@ func (p *ProcessingMedia) store(ctx context.Context) error {
 			return gtserror.Newf("error generating image thumb: %w", err)
 		}
 
-		// Set generated thumbnail's mimetype.
-		p.media.Thumbnail.ContentType = mimeType
-
 		if needBlurhash {
 			// Set newly determined blurhash.
 			p.media.Blurhash = newBlurhash
@@ -268,6 +265,10 @@ func (p *ProcessingMedia) store(ctx context.Context) error {
 		ext,
 	)
 
+	// Get mimetype for the file container
+	// type, falling back to generic data.
+	p.media.File.ContentType = getMimeType(ext)
+
 	// Copy temporary file into storage at path.
 	filesz, err := p.mgr.state.Storage.PutFile(ctx,
 		p.media.File.Path,
@@ -294,6 +295,9 @@ func (p *ProcessingMedia) store(ctx context.Context) error {
 			thumbExt,
 		)
 
+		// Determine thumbnail content-type from thumb ext.
+		p.media.Thumbnail.ContentType = getMimeType(thumbExt)
+
 		// Copy thumbnail file into storage at path.
 		thumbsz, err := p.mgr.state.Storage.PutFile(ctx,
 			p.media.Thumbnail.Path,

internal/media/thumbnail.go

@@ -84,21 +84,17 @@ func generateThumb(
 	needBlurhash bool,
 ) (
 	outpath string,
-	mimeType string,
 	blurhash string,
 	err error,
 ) {
 	var ext string
 
-	// Default type is webp.
-	mimeType = "image/webp"
-
 	// Generate thumb output path REPLACING extension.
 	if i := strings.IndexByte(filepath, '.'); i != -1 {
 		outpath = filepath[:i] + "_thumb.webp"
 		ext = filepath[i+1:] // old extension
 	} else {
-		return "", "", "", gtserror.New("input file missing extension")
+		return "", "", gtserror.New("input file missing extension")
 	}
 
 	// Check for the few media types we
@@ -110,7 +106,6 @@ func generateThumb(
 		// Replace the "webp" with "jpeg", as we'll
 		// use our native Go thumbnailing generation.
 		outpath = outpath[:len(outpath)-4] + "jpeg"
-		mimeType = "image/jpeg"
 
 		log.Debug(ctx, "generating thumb from jpeg")
 		blurhash, err := generateNativeThumb(
@@ -122,7 +117,7 @@ func generateThumb(
 			jpeg.Decode,
 			needBlurhash,
 		)
-		return outpath, mimeType, blurhash, err
+		return outpath, blurhash, err
 
 	// We specifically only allow generating native
 	// thumbnails from gif IF it doesn't contain an
@@ -133,7 +128,6 @@ func generateThumb(
 		// Replace the "webp" with "jpeg", as we'll
 		// use our native Go thumbnailing generation.
 		outpath = outpath[:len(outpath)-4] + "jpeg"
-		mimeType = "image/jpeg"
 
 		log.Debug(ctx, "generating thumb from gif")
 		blurhash, err := generateNativeThumb(
@@ -145,7 +139,7 @@ func generateThumb(
 			gif.Decode,
 			needBlurhash,
 		)
-		return outpath, mimeType, blurhash, err
+		return outpath, blurhash, err
 
 	// We specifically only allow generating native
 	// thumbnails from png IF it doesn't contain an
@@ -156,7 +150,6 @@ func generateThumb(
 		// Replace the "webp" with "jpeg", as we'll
 		// use our native Go thumbnailing generation.
 		outpath = outpath[:len(outpath)-4] + "jpeg"
-		mimeType = "image/jpeg"
 
 		log.Debug(ctx, "generating thumb from png")
 		blurhash, err := generateNativeThumb(
@@ -168,7 +161,7 @@ func generateThumb(
 			png.Decode,
 			needBlurhash,
 		)
-		return outpath, mimeType, blurhash, err
+		return outpath, blurhash, err
 
 	// We specifically only allow generating native
 	// thumbnails from webp IF it doesn't contain an
@@ -179,7 +172,6 @@ func generateThumb(
 		// Replace the "webp" with "jpeg", as we'll
 		// use our native Go thumbnailing generation.
 		outpath = outpath[:len(outpath)-4] + "jpeg"
-		mimeType = "image/jpeg"
 
 		log.Debug(ctx, "generating thumb from webp")
 		blurhash, err := generateNativeThumb(
@@ -191,7 +183,7 @@ func generateThumb(
 			webp.Decode,
 			needBlurhash,
 		)
-		return outpath, mimeType, blurhash, err
+		return outpath, blurhash, err
 	}
 
 	// The fallback for thumbnail generation, which
@@ -204,18 +196,18 @@ func generateThumb(
 		height,
 		pixfmt,
 	); err != nil {
-		return outpath, "", "", err
+		return outpath, "", err
 	}
 
 	if needBlurhash {
 		// Generate new blurhash from webp output thumb.
 		blurhash, err = generateWebpBlurhash(outpath)
 		if err != nil {
-			return outpath, "", "", gtserror.Newf("error generating blurhash: %w", err)
+			return outpath, "", gtserror.Newf("error generating blurhash: %w", err)
 		}
 	}
 
-	return outpath, mimeType, blurhash, nil
+	return outpath, blurhash, err
 }
 
 // generateNativeThumb generates a thumbnail

internal/media/util.go

@@ -18,6 +18,7 @@
 package media
 
 import (
+	"cmp"
 	"errors"
 	"fmt"
 	"io"
@@ -27,6 +28,7 @@
 
 	"codeberg.org/gruf/go-bytesize"
 	"codeberg.org/gruf/go-iotools"
+	"codeberg.org/gruf/go-mimetypes"
 	"github.com/superseriousbusiness/gotosocial/internal/gtserror"
 )
 
@@ -85,6 +87,12 @@ func getExtension(path string) string {
 	return ""
 }
 
+// getMimeType returns a suitable mimetype for file extension.
+func getMimeType(ext string) string {
+	const defaultType = "application/octet-stream"
+	return cmp.Or(mimetypes.MimeTypes[ext], defaultType)
+}
+
 // drainToTmp drains data from given reader into a new temp file
 // and closes it, returning the path of the resulting temp file.
 //

internal/typeutils/internaltofrontend.go

@@ -18,11 +18,9 @@
 package typeutils
 
 import (
-	"cmp"
 	"context"
 	"errors"
 	"fmt"
-	"math"
 	"slices"
 	"strconv"
 	"strings"
@@ -45,6 +43,9 @@
 
 const (
 	instanceStatusesCharactersReservedPerURL    = 25
+	instanceMediaAttachmentsImageMatrixLimit    = 16777216 // width * height
+	instanceMediaAttachmentsVideoMatrixLimit    = 16777216 // width * height
+	instanceMediaAttachmentsVideoFrameRateLimit = 60
 	instancePollsMinExpiration                  = 300     // seconds
 	instancePollsMaxExpiration                  = 2629746 // seconds
 	instanceAccountsMaxFeaturedTags             = 10
@@ -1562,24 +1563,11 @@ func (c *Converter) InstanceToAPIV1Instance(ctx context.Context, i *gtsmodel.Ins
 	instance.Configuration.Statuses.CharactersReservedPerURL = instanceStatusesCharactersReservedPerURL
 	instance.Configuration.Statuses.SupportedMimeTypes = instanceStatusesSupportedMimeTypes
 	instance.Configuration.MediaAttachments.SupportedMimeTypes = media.SupportedMIMETypes
-
-	// NOTE: we use the local max sizes here
-	// as it hints to apps like Tusky for image
-	// compression of locally uploaded media.
-	//
-	// TODO: return local / remote depending
-	// on authorized endpoint user (if any)?
-	localMax := config.GetMediaLocalMaxSize()
-	imageSz := cmp.Or(config.GetMediaImageSizeHint(), localMax)
-	videoSz := cmp.Or(config.GetMediaVideoSizeHint(), localMax)
-	instance.Configuration.MediaAttachments.ImageSizeLimit = int(imageSz) // #nosec G115 -- Already validated.
-	instance.Configuration.MediaAttachments.VideoSizeLimit = int(videoSz) // #nosec G115 -- Already validated.
-
-	// we don't actually set any limits on these. set to max possible.
-	instance.Configuration.MediaAttachments.ImageMatrixLimit = math.MaxInt
-	instance.Configuration.MediaAttachments.VideoFrameRateLimit = math.MaxInt
-	instance.Configuration.MediaAttachments.VideoMatrixLimit = math.MaxInt
-
+	instance.Configuration.MediaAttachments.ImageSizeLimit = int(config.GetMediaRemoteMaxSize()) // #nosec G115 -- Already validated.
+	instance.Configuration.MediaAttachments.ImageMatrixLimit = instanceMediaAttachmentsImageMatrixLimit
+	instance.Configuration.MediaAttachments.VideoSizeLimit = int(config.GetMediaRemoteMaxSize()) // #nosec G115 -- Already validated.
+	instance.Configuration.MediaAttachments.VideoFrameRateLimit = instanceMediaAttachmentsVideoFrameRateLimit
+	instance.Configuration.MediaAttachments.VideoMatrixLimit = instanceMediaAttachmentsVideoMatrixLimit
 	instance.Configuration.Polls.MaxOptions = config.GetStatusesPollMaxOptions()
 	instance.Configuration.Polls.MaxCharactersPerOption = config.GetStatusesPollOptionMaxChars()
 	instance.Configuration.Polls.MinExpiration = instancePollsMinExpiration
@@ -1725,24 +1713,11 @@ func (c *Converter) InstanceToAPIV2Instance(ctx context.Context, i *gtsmodel.Ins
 	instance.Configuration.Statuses.CharactersReservedPerURL = instanceStatusesCharactersReservedPerURL
 	instance.Configuration.Statuses.SupportedMimeTypes = instanceStatusesSupportedMimeTypes
 	instance.Configuration.MediaAttachments.SupportedMimeTypes = media.SupportedMIMETypes
-
-	// NOTE: we use the local max sizes here
-	// as it hints to apps like Tusky for image
-	// compression of locally uploaded media.
-	//
-	// TODO: return local / remote depending
-	// on authorized endpoint user (if any)?
-	localMax := config.GetMediaLocalMaxSize()
-	imageSz := cmp.Or(config.GetMediaImageSizeHint(), localMax)
-	videoSz := cmp.Or(config.GetMediaVideoSizeHint(), localMax)
-	instance.Configuration.MediaAttachments.ImageSizeLimit = int(imageSz) // #nosec G115 -- Already validated.
-	instance.Configuration.MediaAttachments.VideoSizeLimit = int(videoSz) // #nosec G115 -- Already validated.
-
-	// we don't actually set any limits on these. set to max possible.
-	instance.Configuration.MediaAttachments.ImageMatrixLimit = math.MaxInt
-	instance.Configuration.MediaAttachments.VideoFrameRateLimit = math.MaxInt
-	instance.Configuration.MediaAttachments.VideoMatrixLimit = math.MaxInt
-
+	instance.Configuration.MediaAttachments.ImageSizeLimit = int(config.GetMediaRemoteMaxSize()) // #nosec G115 -- Already validated.
+	instance.Configuration.MediaAttachments.ImageMatrixLimit = instanceMediaAttachmentsImageMatrixLimit
+	instance.Configuration.MediaAttachments.VideoSizeLimit = int(config.GetMediaRemoteMaxSize()) // #nosec G115 -- Already validated.
+	instance.Configuration.MediaAttachments.VideoFrameRateLimit = instanceMediaAttachmentsVideoFrameRateLimit
+	instance.Configuration.MediaAttachments.VideoMatrixLimit = instanceMediaAttachmentsVideoMatrixLimit
 	instance.Configuration.Polls.MaxOptions = config.GetStatusesPollMaxOptions()
 	instance.Configuration.Polls.MaxCharactersPerOption = config.GetStatusesPollOptionMaxChars()
 	instance.Configuration.Polls.MinExpiration = instancePollsMinExpiration

internal/typeutils/internaltofrontend_test.go

@@ -1958,7 +1958,7 @@ func (suite *InternalToFrontendTestSuite) TestInstanceV1ToFrontend() {
         "image/apng",
         "audio/ogg",
         "video/ogg",
-        "audio/mp4",
+        "audio/x-m4a",
         "video/mp4",
         "video/quicktime",
         "audio/x-ms-wma",
@@ -1968,10 +1968,10 @@ func (suite *InternalToFrontendTestSuite) TestInstanceV1ToFrontend() {
         "video/x-matroska"
       ],
       "image_size_limit": 41943040,
-      "image_matrix_limit": 9223372036854775807,
+      "image_matrix_limit": 16777216,
       "video_size_limit": 41943040,
-      "video_frame_rate_limit": 9223372036854775807,
-      "video_matrix_limit": 9223372036854775807
+      "video_frame_rate_limit": 60,
+      "video_matrix_limit": 16777216
     },
     "polls": {
       "max_options": 6,
@@ -2103,7 +2103,7 @@ func (suite *InternalToFrontendTestSuite) TestInstanceV2ToFrontend() {
         "image/apng",
         "audio/ogg",
         "video/ogg",
-        "audio/mp4",
+        "audio/x-m4a",
         "video/mp4",
         "video/quicktime",
         "audio/x-ms-wma",
@@ -2113,10 +2113,10 @@ func (suite *InternalToFrontendTestSuite) TestInstanceV2ToFrontend() {
         "video/x-matroska"
       ],
       "image_size_limit": 41943040,
-      "image_matrix_limit": 9223372036854775807,
+      "image_matrix_limit": 16777216,
       "video_size_limit": 41943040,
-      "video_frame_rate_limit": 9223372036854775807,
-      "video_matrix_limit": 9223372036854775807
+      "video_frame_rate_limit": 60,
+      "video_matrix_limit": 16777216
     },
     "polls": {
       "max_options": 6,

test/envparsing.sh

@@ -129,11 +129,9 @@ EXPECT=$(cat << "EOF"
     "media-emoji-local-max-size": 420,
     "media-emoji-remote-max-size": 420,
     "media-ffmpeg-pool-size": 8,
-    "media-image-size-hint": 5242880,
     "media-local-max-size": 420,
     "media-remote-cache-days": 30,
     "media-remote-max-size": 420,
-    "media-video-size-hint": 41943040,
     "metrics-auth-enabled": false,
     "metrics-auth-password": "",
     "metrics-auth-username": "",
@@ -246,14 +244,12 @@ GTS_ACCOUNTS_REGISTRATION_OPEN=true \
 GTS_ACCOUNTS_REASON_REQUIRED=false \
 GTS_MEDIA_DESCRIPTION_MIN_CHARS=69 \
 GTS_MEDIA_DESCRIPTION_MAX_CHARS=5000 \
-GTS_MEDIA_IMAGE_SIZE_HINT='5MiB' \
 GTS_MEDIA_LOCAL_MAX_SIZE=420 \
 GTS_MEDIA_REMOTE_MAX_SIZE=420 \
 GTS_MEDIA_REMOTE_CACHE_DAYS=30 \
 GTS_MEDIA_EMOJI_LOCAL_MAX_SIZE=420 \
 GTS_MEDIA_EMOJI_REMOTE_MAX_SIZE=420 \
 GTS_MEDIA_FFMPEG_POOL_SIZE=8 \
-GTS_MEDIA_VIDEO_SIZE_HINT='40MiB' \
 GTS_METRICS_AUTH_ENABLED=false \
 GTS_METRICS_ENABLED=false \
 GTS_STORAGE_BACKEND='local' \

vendor/codeberg.org/gruf/go-mimetypes/README.md

@@ -0,0 +1,5 @@
+# go-mimetypes
+
+A generated lookup map of file extensions to mimetypes, from data provided at: https://raw.githubusercontent.com/micnic/mime.json/master/index.json
+
+This allows determining mimetype without relying on OS mimetype lookups.

vendor/codeberg.org/gruf/go-mimetypes/get-mime-types.sh

@@ -0,0 +1,42 @@
+#!/bin/sh
+
+# Mime types JSON source
+URL='https://raw.githubusercontent.com/micnic/mime.json/master/index.json'
+
+# Define intro to file
+FILE='
+// This is an automatically generated file, do not edit
+package mimetypes
+
+
+// MimeTypes is a map of file extensions to mime types.
+var MimeTypes = map[string]string{
+'
+
+# Set break on new-line
+IFS='
+'
+
+for line in $(curl -fL "$URL" | grep -E '".+"\s*:\s*".+"'); do
+    # Trim final whitespace
+    line=$(echo "$line" | sed -e 's|\s*$||')
+
+    # Ensure it ends in a comma
+    [ "${line%,}" = "$line" ] && line="${line},"
+
+    # Add to file
+    FILE="${FILE}${line}
+"
+done
+
+# Add final statement to file
+FILE="${FILE}
+}
+
+"
+
+# Write to file
+echo "$FILE" > 'mime.gen.go'
+
+# Check for valid go
+gofumpt -w 'mime.gen.go'

vendor/codeberg.org/gruf/go-mimetypes/mime.go

@@ -0,0 +1,47 @@
+package mimetypes
+
+import "path"
+
+// PreferredExts defines preferred file
+// extensions for input mime types (as there
+// can be multiple extensions per mime type).
+var PreferredExts = map[string]string{
+	MimeTypes["mp3"]:  "mp3",  // audio/mpeg
+	MimeTypes["mpeg"]: "mpeg", // video/mpeg
+}
+
+// GetForFilename returns mimetype for given filename.
+func GetForFilename(filename string) (string, bool) {
+	ext := path.Ext(filename)
+	if len(ext) < 1 {
+		return "", false
+	}
+	mime, ok := MimeTypes[ext[1:]]
+	return mime, ok
+}
+
+// GetFileExt returns the file extension to use for mimetype. Relying first upon
+// the 'PreferredExts' map. It simply returns the first match there may multiple.
+func GetFileExt(mimeType string) (string, bool) {
+	ext, ok := PreferredExts[mimeType]
+	if ok {
+		return ext, true
+	}
+	for ext, mime := range MimeTypes {
+		if mime == mimeType {
+			return ext, true
+		}
+	}
+	return "", false
+}
+
+// GetFileExts returns known file extensions used for mimetype.
+func GetFileExts(mimeType string) []string {
+	var exts []string
+	for ext, mime := range MimeTypes {
+		if mime == mimeType {
+			exts = append(exts, ext)
+		}
+	}
+	return exts
+}

vendor/modules.txt

@@ -48,6 +48,9 @@ codeberg.org/gruf/go-maps
 # codeberg.org/gruf/go-mempool v0.0.0-20240507125005-cef10d64a760
 ## explicit; go 1.22.2
 codeberg.org/gruf/go-mempool
+# codeberg.org/gruf/go-mimetypes v1.2.0
+## explicit; go 1.17
+codeberg.org/gruf/go-mimetypes
 # codeberg.org/gruf/go-mutexes v1.5.1
 ## explicit; go 1.22.2
 codeberg.org/gruf/go-mutexes