369 lines
11 KiB
Go
369 lines
11 KiB
Go
package meta
|
|
|
|
import (
|
|
"fmt"
|
|
"path/filepath"
|
|
"reflect"
|
|
"runtime/debug"
|
|
"strconv"
|
|
"strings"
|
|
"time"
|
|
|
|
"github.com/tidwall/gjson"
|
|
"gopkg.in/photoprism/go-tz.v2/tz"
|
|
|
|
"github.com/photoprism/photoprism/pkg/clean"
|
|
"github.com/photoprism/photoprism/pkg/projection"
|
|
"github.com/photoprism/photoprism/pkg/rnd"
|
|
"github.com/photoprism/photoprism/pkg/txt"
|
|
"github.com/photoprism/photoprism/pkg/video"
|
|
)
|
|
|
|
const MimeVideoMP4 = "video/mp4"
|
|
const MimeQuicktime = "video/quicktime"
|
|
|
|
// Exiftool parses JSON sidecar data as created by Exiftool.
|
|
func (data *Data) Exiftool(jsonData []byte, originalName string) (err error) {
|
|
defer func() {
|
|
if e := recover(); e != nil {
|
|
err = fmt.Errorf("metadata: %s (exiftool panic)\nstack: %s", e, debug.Stack())
|
|
}
|
|
}()
|
|
|
|
j := gjson.GetBytes(jsonData, "@flatten|@join")
|
|
|
|
logName := "json file"
|
|
|
|
if originalName != "" {
|
|
logName = clean.Log(filepath.Base(originalName))
|
|
}
|
|
|
|
if !j.IsObject() {
|
|
return fmt.Errorf("metadata: data is not an object in %s (exiftool)", logName)
|
|
}
|
|
|
|
data.json = make(map[string]string)
|
|
jsonValues := j.Map()
|
|
|
|
for key, val := range jsonValues {
|
|
data.json[key] = val.String()
|
|
}
|
|
|
|
if fileName, ok := data.json["FileName"]; ok && fileName != "" && originalName != "" && fileName != originalName {
|
|
return fmt.Errorf("metadata: original name %s does not match %s (exiftool)", clean.Log(originalName), clean.Log(fileName))
|
|
} else if fileName != "" && originalName == "" {
|
|
logName = clean.Log(filepath.Base(fileName))
|
|
}
|
|
|
|
v := reflect.ValueOf(data).Elem()
|
|
|
|
// Iterate through all config fields
|
|
for i := 0; i < v.NumField(); i++ {
|
|
fieldValue := v.Field(i)
|
|
|
|
tagData := v.Type().Field(i).Tag.Get("meta")
|
|
|
|
// Automatically assign values to fields with "flag" tag
|
|
if tagData != "" {
|
|
tagValues := strings.Split(tagData, ",")
|
|
|
|
var jsonValue gjson.Result
|
|
var tagValue string
|
|
|
|
for _, tagValue = range tagValues {
|
|
if r, ok := jsonValues[tagValue]; !ok {
|
|
continue
|
|
} else if txt.Empty(r.String()) {
|
|
continue
|
|
} else {
|
|
jsonValue = r
|
|
break
|
|
}
|
|
}
|
|
|
|
// Skip empty values.
|
|
if !jsonValue.Exists() {
|
|
continue
|
|
}
|
|
|
|
switch t := fieldValue.Interface().(type) {
|
|
case time.Time:
|
|
if !fieldValue.IsZero() {
|
|
continue
|
|
}
|
|
|
|
if dateTime := txt.DateTime(jsonValue.String(), ""); !dateTime.IsZero() {
|
|
fieldValue.Set(reflect.ValueOf(dateTime))
|
|
}
|
|
case time.Duration:
|
|
if !fieldValue.IsZero() {
|
|
continue
|
|
}
|
|
|
|
fieldValue.Set(reflect.ValueOf(StringToDuration(jsonValue.String())))
|
|
case int, int64:
|
|
if !fieldValue.IsZero() {
|
|
continue
|
|
}
|
|
|
|
if intVal := jsonValue.Int(); intVal != 0 {
|
|
fieldValue.SetInt(intVal)
|
|
} else if intVal = txt.Int64(jsonValue.String()); intVal != 0 {
|
|
fieldValue.SetInt(intVal)
|
|
}
|
|
case float32, float64:
|
|
if !fieldValue.IsZero() {
|
|
continue
|
|
}
|
|
|
|
if f := jsonValue.Float(); f != 0 {
|
|
fieldValue.SetFloat(f)
|
|
} else if f = txt.Float64(jsonValue.String()); f != 0 {
|
|
fieldValue.SetFloat(f)
|
|
}
|
|
case uint, uint64:
|
|
if !fieldValue.IsZero() {
|
|
continue
|
|
}
|
|
|
|
if uintVal := jsonValue.Uint(); uintVal > 0 {
|
|
fieldValue.SetUint(uintVal)
|
|
} else if intVal := txt.Int64(jsonValue.String()); intVal > 0 {
|
|
fieldValue.SetUint(uint64(intVal))
|
|
}
|
|
case []string:
|
|
existing := fieldValue.Interface().([]string)
|
|
fieldValue.Set(reflect.ValueOf(txt.AddToWords(existing, SanitizeUnicode(jsonValue.String()))))
|
|
case Keywords:
|
|
existing := fieldValue.Interface().(Keywords)
|
|
fieldValue.Set(reflect.ValueOf(txt.AddToWords(existing, SanitizeUnicode(jsonValue.String()))))
|
|
case projection.Type:
|
|
if !fieldValue.IsZero() {
|
|
continue
|
|
}
|
|
|
|
fieldValue.Set(reflect.ValueOf(projection.Type(SanitizeUnicode(jsonValue.String()))))
|
|
case string:
|
|
if !fieldValue.IsZero() {
|
|
continue
|
|
}
|
|
|
|
fieldValue.SetString(SanitizeUnicode(jsonValue.String()))
|
|
case bool:
|
|
if !fieldValue.IsZero() {
|
|
continue
|
|
}
|
|
|
|
fieldValue.SetBool(jsonValue.Bool())
|
|
default:
|
|
log.Warnf("metadata: cannot assign value of type %s to %s (exiftool)", t, tagValue)
|
|
}
|
|
}
|
|
}
|
|
|
|
// Nanoseconds.
|
|
if data.TakenNs <= 0 {
|
|
for _, name := range exifSubSecTags {
|
|
if s := data.json[name]; txt.IsPosInt(s) {
|
|
data.TakenNs = txt.Int(s + strings.Repeat("0", 9-len(s)))
|
|
break
|
|
}
|
|
}
|
|
}
|
|
|
|
// Set latitude and longitude if known and not already set.
|
|
if data.Lat == 0 && data.Lng == 0 {
|
|
if data.GPSPosition != "" {
|
|
lat, lng := GpsToLatLng(data.GPSPosition)
|
|
data.Lat, data.Lng = NormalizeGPS(lat, lng)
|
|
} else if data.GPSLatitude != "" && data.GPSLongitude != "" {
|
|
data.Lat, data.Lng = NormalizeGPS(GpsToDecimal(data.GPSLatitude), GpsToDecimal(data.GPSLongitude))
|
|
}
|
|
}
|
|
|
|
if data.Altitude == 0 {
|
|
// Parseable floating point number?
|
|
if fl := GpsFloatRegexp.FindAllString(data.json["GPSAltitude"], -1); len(fl) != 1 {
|
|
// Ignore.
|
|
} else if alt, err := strconv.ParseFloat(fl[0], 64); err == nil && alt != 0 {
|
|
data.Altitude = int(alt)
|
|
}
|
|
}
|
|
|
|
hasTimeOffset := false
|
|
|
|
// Has Media Create Date?
|
|
if !data.CreatedAt.IsZero() {
|
|
data.TakenAt = data.CreatedAt
|
|
}
|
|
|
|
// Fallback to GPS UTC Time?
|
|
if data.TakenAt.IsZero() && data.TakenAtLocal.IsZero() && !data.TakenGps.IsZero() {
|
|
data.TimeZone = time.UTC.String()
|
|
data.TakenAt = data.TakenGps.UTC()
|
|
data.TakenAtLocal = time.Time{}
|
|
}
|
|
|
|
// Check plausibility of the local <> UTC time difference.
|
|
if !data.TakenAt.IsZero() && !data.TakenAtLocal.IsZero() {
|
|
if d := data.TakenAt.Sub(data.TakenAtLocal).Abs(); d > time.Hour*27 {
|
|
log.Infof("metadata: %s has an invalid local time offset (%s)", logName, d.String())
|
|
log.Debugf("metadata: %s was taken at %s, local time %s, create time %s, time zone %s", logName, clean.Log(data.TakenAt.UTC().String()), clean.Log(data.TakenAtLocal.String()), clean.Log(data.CreatedAt.String()), clean.Log(data.TimeZone))
|
|
data.TakenAtLocal = data.TakenAt
|
|
data.TakenAt = data.TakenAt.UTC()
|
|
}
|
|
}
|
|
|
|
// Has time zone offset?
|
|
if _, offset := data.TakenAtLocal.Zone(); offset != 0 && !data.TakenAtLocal.IsZero() {
|
|
hasTimeOffset = true
|
|
} else if mt, ok := data.json["MIMEType"]; ok && data.TakenAtLocal.IsZero() && (mt == MimeVideoMP4 || mt == MimeQuicktime) {
|
|
// Assume default time zone for MP4 & Quicktime videos is UTC.
|
|
// see https://exiftool.org/TagNames/QuickTime.html
|
|
log.Debugf("metadata: %s uses utc by default (%s)", logName, clean.Log(mt))
|
|
data.TimeZone = time.UTC.String()
|
|
data.TakenAt = data.TakenAt.UTC()
|
|
data.TakenAtLocal = time.Time{}
|
|
}
|
|
|
|
// Set time zone and calculate UTC time.
|
|
if data.Lat != 0 && data.Lng != 0 {
|
|
zones, err := tz.GetZone(tz.Point{
|
|
Lat: float64(data.Lat),
|
|
Lon: float64(data.Lng),
|
|
})
|
|
|
|
if err == nil && len(zones) > 0 {
|
|
data.TimeZone = zones[0]
|
|
}
|
|
|
|
if loc, err := time.LoadLocation(data.TimeZone); err != nil {
|
|
log.Warnf("metadata: unknown time zone %s (exiftool)", data.TimeZone)
|
|
} else if !data.TakenAtLocal.IsZero() {
|
|
if tl, err := time.ParseInLocation("2006:01:02 15:04:05", data.TakenAtLocal.Format("2006:01:02 15:04:05"), loc); err == nil {
|
|
if localUtc, err := time.ParseInLocation("2006:01:02 15:04:05", data.TakenAtLocal.Format("2006:01:02 15:04:05"), time.UTC); err == nil {
|
|
data.TakenAtLocal = localUtc
|
|
}
|
|
|
|
data.TakenAt = tl.Truncate(time.Second).UTC()
|
|
} else {
|
|
log.Errorf("metadata: %s (exiftool)", err.Error()) // this should never happen
|
|
}
|
|
} else if !data.TakenAt.IsZero() {
|
|
if localUtc, err := time.ParseInLocation("2006:01:02 15:04:05", data.TakenAt.In(loc).Format("2006:01:02 15:04:05"), time.UTC); err == nil {
|
|
data.TakenAtLocal = localUtc
|
|
data.TakenAt = data.TakenAt.UTC()
|
|
} else {
|
|
log.Errorf("metadata: %s (exiftool)", err.Error()) // this should never happen
|
|
}
|
|
}
|
|
} else if hasTimeOffset {
|
|
if localUtc, err := time.ParseInLocation("2006:01:02 15:04:05", data.TakenAtLocal.Format("2006:01:02 15:04:05"), time.UTC); err == nil {
|
|
data.TakenAtLocal = localUtc
|
|
}
|
|
|
|
data.TakenAt = data.TakenAt.Truncate(time.Second).UTC()
|
|
}
|
|
|
|
// Set local time if still empty.
|
|
if data.TakenAtLocal.IsZero() && !data.TakenAt.IsZero() {
|
|
if loc, err := time.LoadLocation(data.TimeZone); data.TimeZone == "" || err != nil {
|
|
data.TakenAtLocal = data.TakenAt
|
|
} else if localUtc, err := time.ParseInLocation("2006:01:02 15:04:05", data.TakenAt.In(loc).Format("2006:01:02 15:04:05"), time.UTC); err == nil {
|
|
data.TakenAtLocal = localUtc
|
|
data.TakenAt = data.TakenAt.UTC()
|
|
} else {
|
|
log.Errorf("metadata: %s (exiftool)", err.Error()) // this should never happen
|
|
}
|
|
}
|
|
|
|
// Add nanoseconds to the calculated UTC and local time.
|
|
if data.TakenAt.Nanosecond() == 0 {
|
|
if ns := time.Duration(data.TakenNs); ns > 0 && ns <= time.Second {
|
|
data.TakenAt.Truncate(time.Second).UTC().Add(ns)
|
|
data.TakenAtLocal.Truncate(time.Second).Add(ns)
|
|
}
|
|
}
|
|
|
|
// Use actual image width and height if available, see issue #2447.
|
|
if jsonValues["ImageWidth"].Exists() && jsonValues["ImageHeight"].Exists() {
|
|
if val := jsonValues["ImageWidth"].Int(); val > 0 {
|
|
data.Width = int(val)
|
|
}
|
|
|
|
if val := jsonValues["ImageHeight"].Int(); val > 0 {
|
|
data.Height = int(val)
|
|
}
|
|
}
|
|
|
|
// Image orientation, see https://www.daveperrett.com/articles/2012/07/28/exif-orientation-handling-is-a-ghetto/.
|
|
if orientation, ok := data.json["Orientation"]; ok && orientation != "" {
|
|
switch orientation {
|
|
case "1", "Horizontal (normal)":
|
|
data.Orientation = 1
|
|
case "2":
|
|
data.Orientation = 2
|
|
case "3", "Rotate 180 CW":
|
|
data.Orientation = 3
|
|
case "4":
|
|
data.Orientation = 4
|
|
case "5":
|
|
data.Orientation = 5
|
|
case "6", "Rotate 90 CW":
|
|
data.Orientation = 6
|
|
case "7":
|
|
data.Orientation = 7
|
|
case "8", "Rotate 270 CW":
|
|
data.Orientation = 8
|
|
}
|
|
}
|
|
|
|
if data.Orientation == 0 {
|
|
// Set orientation based on rotation.
|
|
switch data.Rotation {
|
|
case 0:
|
|
data.Orientation = 1
|
|
case -180, 180:
|
|
data.Orientation = 3
|
|
case 90:
|
|
data.Orientation = 6
|
|
case -90, 270:
|
|
data.Orientation = 8
|
|
}
|
|
}
|
|
|
|
// Normalize codec name.
|
|
data.Codec = strings.ToLower(data.Codec)
|
|
if strings.Contains(data.Codec, CodecJpeg) { // JPEG Image?
|
|
data.Codec = CodecJpeg
|
|
} else if c, ok := video.Codecs[data.Codec]; ok { // Video codec?
|
|
data.Codec = string(c)
|
|
} else if strings.HasPrefix(data.Codec, "a_") { // Audio codec?
|
|
data.Codec = ""
|
|
}
|
|
|
|
// Validate and normalize optional DocumentID.
|
|
if data.DocumentID != "" {
|
|
data.DocumentID = rnd.SanitizeUUID(data.DocumentID)
|
|
}
|
|
|
|
// Validate and normalize optional InstanceID.
|
|
if data.InstanceID != "" {
|
|
data.InstanceID = rnd.SanitizeUUID(data.InstanceID)
|
|
}
|
|
|
|
if projection.Equirectangular.Equal(data.Projection) {
|
|
data.AddKeywords(KeywordPanorama)
|
|
}
|
|
|
|
if data.Description != "" {
|
|
data.AutoAddKeywords(data.Description)
|
|
data.Description = SanitizeDescription(data.Description)
|
|
}
|
|
|
|
data.Title = SanitizeTitle(data.Title)
|
|
data.Subject = SanitizeMeta(data.Subject)
|
|
data.Artist = SanitizeMeta(data.Artist)
|
|
|
|
return nil
|
|
}
|