feat: add webp format (#869)

services/thumbnails/pkg/thumbnail/encoding.go

@@ -15,6 +15,7 @@ const (
 	typeGif  = "gif"
 	typeGgs  = "ggs"
 	typeGgp  = "ggp"
+	typeWebp = "webp"
 )
 
 // Encoder encodes the thumbnail to a specific format.
@@ -55,7 +56,7 @@ func EncoderForType(fileType string) (Encoder, error) {
 	switch strings.ToLower(fileType) {
 	case typePng, typeGgs, typeGgp:
 		return PngEncoder{}, nil
-	case typeJpg, typeJpeg:
+	case typeJpg, typeJpeg, typeWebp:
 		return JpegEncoder{}, nil
 	case typeGif:
 		return GifEncoder{}, nil
@@ -68,7 +69,7 @@ func EncoderForType(fileType string) (Encoder, error) {
 func GetExtForMime(fileType string) string {
 	ext := strings.TrimPrefix(strings.TrimSpace(strings.ToLower(fileType)), "image/")
 	switch ext {
-	case typeJpg, typeJpeg, typePng, typeGif:
+	case typeJpg, typeJpeg, typePng, typeGif, typeWebp:
 		return ext
 	case "application/vnd.geogebra.slides":
 		return typeGgs

services/thumbnails/pkg/thumbnail/generator.go

@@ -89,7 +89,7 @@ func (g GifGenerator) imageToPaletted(img image.Image, p color.Palette) *image.P
 // or nil if the type is not supported.
 func GeneratorFor(fileType, processorID string) (Generator, error) {
 	switch strings.ToLower(fileType) {
-	case typePng, typeJpg, typeJpeg, typeGgs, typeGgp:
+	case typePng, typeJpg, typeJpeg, typeGgs, typeGgp, typeWebp:
 		return NewSimpleGenerator(fileType, processorID)
 	case typeGif:
 		return NewGifGenerator(fileType, processorID)

services/thumbnails/pkg/thumbnail/mimetypes.go

@@ -0,0 +1,22 @@
+//go:build !enable_vips
+
+package thumbnail
+
+var (
+	// SupportedMimeTypes contains an all mimetypes which are supported by the thumbnailer.
+	SupportedMimeTypes = map[string]struct{}{
+		"image/png":                         {},
+		"image/jpg":                         {},
+		"image/jpeg":                        {},
+		"image/gif":                         {},
+		"image/bmp":                         {},
+		"image/x-ms-bmp":                    {},
+		"image/tiff":                        {},
+		"text/plain":                        {},
+		"audio/flac":                        {},
+		"audio/mpeg":                        {},
+		"audio/ogg":                         {},
+		"application/vnd.geogebra.slides":   {},
+		"application/vnd.geogebra.pinboard": {},
+	}
+)

services/thumbnails/pkg/thumbnail/mimetypes_vips.go

@@ -0,0 +1,23 @@
+//go:build enable_vips
+
+package thumbnail
+
+var (
+	// SupportedMimeTypes contains an all mimetypes which are supported by the thumbnailer.
+	SupportedMimeTypes = map[string]struct{}{
+		"image/png":                         {},
+		"image/jpg":                         {},
+		"image/jpeg":                        {},
+		"image/gif":                         {},
+		"image/bmp":                         {},
+		"image/x-ms-bmp":                    {},
+		"image/tiff":                        {},
+		"text/plain":                        {},
+		"audio/flac":                        {},
+		"audio/mpeg":                        {},
+		"audio/ogg":                         {},
+		"application/vnd.geogebra.slides":   {},
+		"application/vnd.geogebra.pinboard": {},
+		"image/webp":                        {},
+	}
+)

services/thumbnails/pkg/thumbnail/thumbnail.go

@@ -10,25 +10,6 @@ import (
 	"github.com/opencloud-eu/opencloud/services/thumbnails/pkg/thumbnail/storage"
 )
 
-var (
-	// SupportedMimeTypes contains an all mimetypes which are supported by the thumbnailer.
-	SupportedMimeTypes = map[string]struct{}{
-		"image/png":                         {},
-		"image/jpg":                         {},
-		"image/jpeg":                        {},
-		"image/gif":                         {},
-		"image/bmp":                         {},
-		"image/x-ms-bmp":                    {},
-		"image/tiff":                        {},
-		"text/plain":                        {},
-		"audio/flac":                        {},
-		"audio/mpeg":                        {},
-		"audio/ogg":                         {},
-		"application/vnd.geogebra.slides":   {},
-		"application/vnd.geogebra.pinboard": {},
-	}
-)
-
 // Request bundles information needed to generate a thumbnail for a file
 type Request struct {
 	Resolution image.Rectangle