photoprism/internal/meta/json.go
Michael Mayer 5ec90a5fff Index: Skip redundant thumbs and support symbolic file links #1049 #1874
Signed-off-by: Michael Mayer <michael@photoprism.app>
2022-07-06 23:01:54 +02:00

55 lines
1.5 KiB
Go

package meta
import (
"bytes"
"fmt"
"os"
"path/filepath"
"runtime/debug"
"github.com/photoprism/photoprism/pkg/clean"
"github.com/photoprism/photoprism/pkg/fs"
)
// JSON parses a json sidecar file (as used by Exiftool) and returns a Data struct.
func JSON(jsonName, originalName string) (data Data, err error) {
err = data.JSON(jsonName, originalName)
return data, err
}
// JSON parses a json sidecar file (as used by Exiftool) and returns a Data struct.
func (data *Data) JSON(jsonName, originalName string) (err error) {
defer func() {
if e := recover(); e != nil {
err = fmt.Errorf("metadata: %s in %s (json panic)\nstack: %s", e, clean.Log(filepath.Base(jsonName)), debug.Stack())
}
}()
quotedName := clean.Log(filepath.Base(jsonName))
// Resolve JSON file name e.g. in case it's a symlink.
if jsonName, err = fs.Resolve(jsonName); err != nil {
return fmt.Errorf("metadata: %s not found (%s)", quotedName, err)
} else if !fs.FileExists(jsonName) {
return fmt.Errorf("metadata: %s not found", quotedName)
}
jsonData, err := os.ReadFile(jsonName)
if err != nil {
return fmt.Errorf("cannot read json file %s", quotedName)
}
if bytes.Contains(jsonData, []byte("ExifToolVersion")) {
return data.Exiftool(jsonData, originalName)
} else if bytes.Contains(jsonData, []byte("albumData")) {
return data.GMeta(jsonData)
} else if bytes.Contains(jsonData, []byte("photoTakenTime")) {
return data.GPhoto(jsonData)
}
log.Warnf("metadata: unknown json in %s", quotedName)
return fmt.Errorf("unknown json in %s", quotedName)
}