🐛 Analyzer now can handle EXIF Orientation

pkg/internal/services/analyzer.go

@@ -99,6 +99,13 @@ func ScanUnanalyzedFileFromDatabase() {
 	}()
 }
 
+func calculateAspectRatio(width, height int, orientation int) float64 {
+	if orientation == 6 || orientation == 8 {
+		width, height = height, width
+	}
+	return float64(width) / float64(height)
+}
+
 func AnalyzeAttachment(file models.Attachment) error {
 	if file.Destination != models.AttachmentDstTemporary {
 		return fmt.Errorf("attachment isn't in temporary storage, unable to analyze")
@@ -133,7 +140,7 @@ func AnalyzeAttachment(file models.Attachment) error {
 			"Model", "ShutterSpeed", "ISO", "Megapixels", "Aperture",
 			"ColorSpace", "ColorTemperature", "ColorTone", "Contrast",
 			"ExposureTime", "FNumber", "FocalLength", "Flash", "HDREffect",
-			"LensModel",
+			"LensModel", "Orientation",
 		}
 
 		switch strings.SplitN(file.MimeType, "/", 2)[0] {
@@ -165,6 +172,9 @@ func AnalyzeAttachment(file models.Attachment) error {
 				exif := et.ExtractMetadata(dst)
 				for _, data := range exif {
 					for k := range data.Fields {
+						if k == "Orientation" {
+							file.Metadata["ratio"] = calculateAspectRatio(width, height, data.Fields[k].(int))
+						}
 						if strings.HasPrefix(k, "GPS") {
 							data.Clear(k)
 						} else if lo.Contains(exifWhitelist, k) {
@@ -206,6 +216,9 @@ func AnalyzeAttachment(file models.Attachment) error {
 				exif := et.ExtractMetadata(dst)
 				for _, data := range exif {
 					for k := range data.Fields {
+						if k == "Orientation" {
+							file.Metadata["ratio"] = calculateAspectRatio(stream.Width, stream.Height, data.Fields[k].(int))
+						}
 						if strings.HasPrefix(k, "GPS") {
 							data.Clear(k)
 						} else if lo.Contains(exifWhitelist, k) {