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https://github.com/rclone/rclone
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fd1ca2dfe8
This involved adding the Fs() method to DirEntry as it is needed in the metadata mapper. Unspecialised fs.Dir objects will return a new fs.Unknown from their Fs() methods as they are not specific to any given Fs.
82 lines
2.0 KiB
Go
82 lines
2.0 KiB
Go
package fs
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import (
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"context"
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"mime"
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"path"
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"strings"
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)
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// Add a minimal number of mime types to augment go's built in types
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// for environments which don't have access to a mime.types file (e.g.
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// Termux on android)
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func init() {
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for _, t := range []struct {
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mimeType string
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extensions string
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}{
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{"audio/flac", ".flac"},
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{"audio/mpeg", ".mpga,.mpega,.mp2,.mp3,.m4a"},
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{"audio/ogg", ".oga,.ogg,.opus,.spx"},
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{"audio/x-wav", ".wav"},
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{"image/tiff", ".tiff,.tif"},
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{"video/dv", ".dif,.dv"},
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{"video/fli", ".fli"},
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{"video/mpeg", ".mpeg,.mpg,.mpe"},
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{"video/MP2T", ".ts"},
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{"video/mp4", ".mp4"},
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{"video/quicktime", ".qt,.mov"},
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{"video/ogg", ".ogv"},
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{"video/webm", ".webm"},
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{"video/x-msvideo", ".avi"},
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{"video/x-matroska", ".mpv,.mkv"},
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{"text/srt", ".srt"},
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} {
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for _, ext := range strings.Split(t.extensions, ",") {
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if mime.TypeByExtension(ext) == "" {
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err := mime.AddExtensionType(ext, t.mimeType)
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if err != nil {
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panic(err)
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}
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}
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}
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}
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}
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// MimeTypeFromName returns a guess at the mime type from the name
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func MimeTypeFromName(remote string) (mimeType string) {
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mimeType = mime.TypeByExtension(path.Ext(remote))
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if !strings.ContainsRune(mimeType, '/') {
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mimeType = "application/octet-stream"
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}
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return mimeType
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}
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// MimeType returns the MimeType from the object, either by calling
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// the MimeTyper interface or using MimeTypeFromName
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func MimeType(ctx context.Context, o DirEntry) (mimeType string) {
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// Read the MimeType from the optional interface if available
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if do, ok := o.(MimeTyper); ok {
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mimeType = do.MimeType(ctx)
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// Debugf(o, "Read MimeType as %q", mimeType)
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if mimeType != "" {
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return mimeType
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}
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}
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return MimeTypeFromName(o.Remote())
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}
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// MimeTypeDirEntry returns the MimeType of a DirEntry
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//
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// It returns "inode/directory" for directories, or uses
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// MimeType(Object)
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func MimeTypeDirEntry(ctx context.Context, item DirEntry) string {
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switch x := item.(type) {
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case Object:
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return MimeType(ctx, x)
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case Directory:
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return "inode/directory"
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}
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return ""
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}
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