photoprism/pkg/fs/mime.go
Michael Mayer 0c4aa86f85 CLI: Create thumbs and convert files in deterministic order #3194
This also adds support for specifying a path to the thumbs command.

Signed-off-by: Michael Mayer <michael@photoprism.app>
2023-02-14 11:37:22 +01:00

64 lines
1.5 KiB
Go

package fs
import (
"path/filepath"
"strings"
"github.com/gabriel-vasile/mimetype"
)
const (
MimeTypeUnknown = ""
MimeTypeJpeg = "image/jpeg"
MimeTypePng = "image/png"
MimeTypeGif = "image/gif"
MimeTypeBitmap = "image/bmp"
MimeTypeTiff = "image/tiff"
MimeTypeDNG = "image/dng"
MimeTypeAVIF = "image/avif"
MimeTypeHEIC = "image/heic"
MimeTypeWebP = "image/webp"
MimeTypeMP4 = "video/mp4"
MimeTypeMOV = "video/quicktime"
MimeTypeSVG = "image/svg+xml"
MimeTypeAI = "application/vnd.adobe.illustrator"
MimeTypePS = "application/ps"
MimeTypeEPS = "image/eps"
MimeTypeXML = "text/xml"
MimeTypeJSON = "application/json"
)
// MimeType returns the mime type of a file, or an empty string if it could not be detected.
func MimeType(filename string) (mimeType string) {
if filename == "" {
return MimeTypeUnknown
}
// Workaround for types that cannot be reliably detected.
switch Extensions[strings.ToLower(filepath.Ext(filename))] {
case ImageDNG:
return MimeTypeDNG
case MimeTypeAVIF:
return MimeTypeAVIF
case VideoMP4:
return MimeTypeMP4
case MimeTypeMOV:
return MimeTypeMOV
case VectorSVG:
return MimeTypeSVG
case VectorAI:
return MimeTypeAI
case VectorPS:
return MimeTypePS
case VectorEPS:
return MimeTypeEPS
}
if t, err := mimetype.DetectFile(filename); err != nil {
return MimeTypeUnknown
} else {
mimeType, _, _ = strings.Cut(t.String(), ";")
}
return mimeType
}