func (ths *ImageTagServer) go_get_image(w http.ResponseWriter, r *http.Request) {
path := r.URL.Query().Get("path")
path = ths.imgRoot + path
path = strings.Replace(path, "..", "", -1)
info, infoErr := os.Stat(path)
if infoErr != nil {
http.Error(w, infoErr.Error(), http.StatusInternalServerError)
return
}
if info.IsDir() == true {
http.Error(w, "No an image", http.StatusBadRequest)
return
}
img, err := imaging.Open(path)
if err != nil {
http.Error(w, err.Error(), http.StatusInternalServerError)
return
}
w.Header().Add("Content-Type", "image/jpeg")
err = imaging.Encode(w, img, imaging.JPEG)
if err != nil {
http.Error(w, "Failed to thumbNail image", http.StatusInternalServerError)
return
}
}
func (imageHandler) Handle(media MediaLibrary, file multipart.File, option *Option) error {
if err := media.Store(media.URL("original"), option, file); err == nil {
file.Seek(0, 0)
if img, err := imaging.Decode(file); err == nil {
if format, err := getImageFormat(media.URL()); err == nil {
if cropOption := media.GetCropOption("original"); cropOption != nil {
img = imaging.Crop(img, *cropOption)
}
// Save default image
var buffer bytes.Buffer
imaging.Encode(&buffer, img, *format)
media.Store(media.URL(), option, &buffer)
for key, size := range media.GetSizes() {
newImage := img
if cropOption := media.GetCropOption(key); cropOption != nil {
newImage = imaging.Crop(newImage, *cropOption)
}
dst := imaging.Thumbnail(newImage, size.Width, size.Height, imaging.Lanczos)
var buffer bytes.Buffer
imaging.Encode(&buffer, dst, *format)
media.Store(media.URL(key), option, &buffer)
}
return nil
} else {
return err
}
} else {
return err
}
} else {
return err
}
}
func Resize(src io.Reader, c *CacheContext) (io.Reader, error) {
raw, err := ioutil.ReadAll(src)
if err != nil {
return nil, err
}
width := c.Width
data := bytes.NewReader(raw)
img, format, err := image.Decode(data)
if err != nil {
return nil, err
}
var resizedImage image.NRGBA
if c.Crop {
minDimension := int(math.Min(float64(img.Bounds().Size().X), float64(img.Bounds().Size().Y)))
if minDimension < c.Width || c.Width == 0 {
width = minDimension
}
resizedImage = *imaging.Fill(img, width, width, imaging.Center, imaging.Lanczos)
} else {
resizedImage = *imaging.Resize(img, width, 0, imaging.Lanczos)
}
buf := new(bytes.Buffer)
var imgFormat imaging.Format
switch format {
case "png":
imgFormat = imaging.PNG
case "jpeg":
imgFormat = imaging.JPEG
case "tiff":
imgFormat = imaging.TIFF
case "bmp":
imgFormat = imaging.BMP
default:
return nil, errors.New("unsupported image format")
}
err = imaging.Encode(buf, resizedImage.SubImage(resizedImage.Rect), imgFormat)
if err != nil {
return nil, err
}
return buf, err
}
func getImage(filename string, small bool) (io.ReadCloser, error) {
if !small {
return os.Open(filename)
}
fullImage, err := imaging.Open(filename)
if err != nil {
return nil, err
}
resized := imaging.Fit(fullImage, config.SmallRes, config.SmallRes, imaging.Linear)
r, w := io.Pipe()
go imaging.Encode(w, resized, imaging.JPEG)
return r, nil
}
func thumbnailHandler(w http.ResponseWriter, r *http.Request) {
query := r.URL.Query()
height, err := strconv.Atoi(query.Get("height"))
if err != nil {
height = 50
}
path := filepath.Join(storage, r.URL.Path)
photo, err := imaging.Open(path)
if err != nil {
fmt.Fprint(w, err)
return
}
switch readRotation(path) {
case 8:
photo = imaging.Rotate90(photo)
case 2:
photo = imaging.Rotate180(photo)
case 6:
photo = imaging.Rotate270(photo)
}
thumb := imaging.Resize(photo, 0, height, imaging.Box)
imaging.Encode(w, thumb, imaging.JPEG)
}
// Do performs the resize
func Do(r io.Reader, w io.Writer, crop *image.Rectangle, width, height int) error {
// read it
img, err := imaging.Decode(r)
if err != nil {
return err
}
// if crop isn't nil
if crop != nil {
// then crop it
img = imaging.Crop(img, *crop)
}
// resize it
img = imaging.Resize(img, width, height, imaging.MitchellNetravali)
// write it
if err := imaging.Encode(w, img, imaging.PNG); err != nil {
return err
}
return nil
}
/*
blurImage: blur the image and save it
*/
func blurImage(inFilename string, outFilename string, factor float64, format imaging.Format) {
//
// print a message about what we are converting
//
fmt.Println("\t\t", inFilename, "=>", outFilename, "using factor", factor)
//
// Open the file and read in the image
//
infile, err := os.Open(inFilename)
errorCheck(err)
defer infile.Close()
//
// load in the actual image data (decode image) and work out the new dimensions
//
srcImage, _, err := image.Decode(infile)
errorCheck(err)
//
// blue the image...
//
blurredImage := imaging.Blur(srcImage, factor)
//
// save the new image
//
outfile, err := os.Create(outFilename)
errorCheck(err)
defer outfile.Close()
imaging.Encode(outfile, blurredImage, format)
// png.Encode(outfile, blurredImage)
}
func (ths *ImageTagServer) go_thumb_image(w http.ResponseWriter, r *http.Request) {
imgPath := r.URL.Query().Get("path")
path := imgPath
path = ths.imgRoot + path
path = strings.Replace(path, "..", "", -1)
info, infoErr := os.Stat(path)
if infoErr != nil {
http.Error(w, infoErr.Error(), http.StatusInternalServerError)
return
}
db := ths.get_db()
if db == nil {
return
}
defer db.Close()
row, rerr := db.Query("SELECT Thumb FROM Image WHERE Path LIKE '" + imgPath + "';")
if rerr != nil {
log.Println(rerr.Error())
http.Error(w, rerr.Error(), http.StatusInternalServerError)
return
}
if row.Next() {
var result string
e := row.Scan(&result)
if e != nil {
log.Println(e.Error())
http.Error(w, e.Error(), http.StatusInternalServerError)
return
}
b, _ := base64.StdEncoding.DecodeString(result)
w.Header().Add("Content-Type", "image/jpeg")
w.Write(b)
return
}
if info.IsDir() == true {
http.Error(w, "No an image", http.StatusBadRequest)
return
}
img, err := imaging.Open(path)
if err != nil {
http.Error(w, err.Error(), http.StatusInternalServerError)
return
}
thumb := imaging.Thumbnail(img, 300, 300, imaging.CatmullRom)
buffer := bytes.NewBuffer(nil)
imaging.Encode(buffer, thumb, imaging.JPEG)
b64 := base64.StdEncoding.EncodeToString(buffer.Bytes())
insertRes, insertResErr := db.Exec("INSERT INTO Image(Path,Thumb) VALUES('" + imgPath + "','" + b64 + "');")
if insertResErr != nil {
log.Println(insertResErr.Error())
http.Error(w, insertResErr.Error(), http.StatusInternalServerError)
return
}
iid, _ := insertRes.LastInsertId()
log.Println("Added image \"" + imgPath + "\" with id " + strconv.FormatInt(iid, 10))
w.Header().Add("Content-Type", "image/jpeg")
w.Write(buffer.Bytes())
if err != nil {
http.Error(w, "Failed to thumbNail image", http.StatusInternalServerError)
return
}
}
func storeImage(rw http.ResponseWriter, req *http.Request) {
// Appengine
var c appengine.Context
// Google Cloud Storage authentication
var cc gcscontext.Context
// Google Cloud Storage bucket name
var bucketName string = ""
// Google Cloud Storage client
var client *storage.Client
// Google Cloud Storage bucket
var bucketHandle *storage.BucketHandle
// User uploaded image file name
var fileName string = uuid.New()
// Transform user uploaded image to a thumbnail file name
var fileNameThumbnail string = uuid.New()
// User uploaded image file type
var contentType string = ""
// User uploaded image file raw data
var b []byte
// Google Cloud Storage file writer
var wc *storage.Writer = nil
// Error
var err error = nil
// Result, 0: success, 1: failed
var r int = http.StatusCreated
// Set response in the end
defer func() {
// Return status. WriteHeader() must be called before call to Write
if r == http.StatusCreated {
// Changing the header after a call to WriteHeader (or Write) has no effect.
// rw.Header().Set("Location", req.URL.String()+"/"+cKey.Encode())
rw.Header().Set("Location", "http://"+bucketName+".storage.googleapis.com/"+fileName)
rw.Header().Set("X-Thumbnail", "http://"+bucketName+".storage.googleapis.com/"+fileNameThumbnail)
rw.WriteHeader(r)
} else {
http.Error(rw, http.StatusText(r), r)
}
}()
// To log information in Google APP Engine console
c = appengine.NewContext(req)
// Get data from body
b, err = ioutil.ReadAll(req.Body)
if err != nil {
c.Errorf("%s in reading body", err)
r = http.StatusInternalServerError
return
}
c.Infof("Body length %d bytes, read %d bytes", req.ContentLength, len(b))
// Determine filename extension from content type
contentType = req.Header["Content-Type"][0]
switch contentType {
case "image/jpeg":
fileName += ".jpg"
fileNameThumbnail += ".jpg"
default:
c.Errorf("Unknown or unsupported content type '%s'. Valid: image/jpeg", contentType)
r = http.StatusBadRequest
return
}
c.Infof("Content type %s is received, %s is detected.", contentType, http.DetectContentType(b))
// Prepare Google Cloud Storage authentication
cc = gcsappengine.NewContext(req)
if client, err = storage.NewClient(cc); err != nil {
c.Errorf("%s in initializing a GCS client", err)
r = http.StatusInternalServerError
return
}
defer client.Close()
// Get default bucket
if bucketName, err = gcsfile.DefaultBucketName(cc); err != nil {
c.Errorf("%s in getting default GCS bucket name", err)
r = http.StatusInternalServerError
return
}
bucketHandle = client.Bucket(bucketName)
c.Infof("APP Engine Version: %s", gcsappengine.VersionID(cc))
c.Infof("Using bucket name: %s", bucketName)
// Change default object ACLs
if err = bucketHandle.DefaultObjectACL().Set(cc, storage.AllUsers, storage.RoleReader); err != nil {
c.Errorf("%v in saving default object ACL rule for bucket %q", err, bucketName)
r = http.StatusInternalServerError
return
}
// Store rotated image in Google Cloud Storage
var in *bytes.Reader = bytes.NewReader(b)
var x *exif.Exif = nil
var orientation *tiff.Tag = nil
var beforeImage image.Image
var afterImage *image.NRGBA = nil
// Read EXIF
if _, err = in.Seek(0, 0); err != nil {
c.Errorf("%s in moving the reader offset to the beginning in order to read EXIF", err)
return
}
if x, err = exif.Decode(in); err != nil {
c.Errorf("%s in decoding JPEG image", err)
return
}
// Get Orientation
if orientation, err = x.Get(exif.Orientation); err != nil {
c.Warningf("%s in getting orientation from EXIF", err)
return
}
c.Debugf("Orientation %s", orientation.String())
// Open image
if _, err = in.Seek(0, 0); err != nil {
c.Errorf("%s in moving the reader offset to the beginning in order to read EXIF", err)
return
}
if beforeImage, err = imaging.Decode(in); err != nil {
c.Errorf("%s in opening image %s", err)
return
}
switch orientation.String() {
case "1":
afterImage = beforeImage.(*image.NRGBA)
case "2":
afterImage = imaging.FlipH(beforeImage)
case "3":
afterImage = imaging.Rotate180(beforeImage)
case "4":
afterImage = imaging.FlipV(beforeImage)
case "5":
afterImage = imaging.Transverse(beforeImage)
case "6":
afterImage = imaging.Rotate270(beforeImage)
case "7":
afterImage = imaging.Transpose(beforeImage)
case "8":
afterImage = imaging.Rotate90(beforeImage)
}
// Save rotated image
wc = bucketHandle.Object(fileName).NewWriter(cc)
wc.ContentType = contentType
if err = imaging.Encode(wc, afterImage, imaging.JPEG); err != nil {
c.Errorf("%s in saving rotated image", err)
return
}
if err = wc.Close(); err != nil {
c.Errorf("CreateFile: unable to close bucket %q, file %q: %v", bucketName, fileName, err)
r = 1
return
}
wc = nil
// Make thumbnail
if afterImage.Rect.Dx() > afterImage.Rect.Dy() {
afterImage = imaging.Resize(afterImage, 1920, 0, imaging.Lanczos)
} else {
afterImage = imaging.Resize(afterImage, 0, 1920, imaging.Lanczos)
}
// Save thumbnail
wc = bucketHandle.Object(fileNameThumbnail).NewWriter(cc)
wc.ContentType = contentType
if imaging.Encode(wc, afterImage, imaging.JPEG); err != nil {
c.Errorf("%s in saving image thumbnail", err)
return
}
if err = wc.Close(); err != nil {
c.Errorf("CreateFileThumbnail: unable to close bucket %q, file %q: %v", bucketName, fileNameThumbnail, err)
r = 1
return
}
c.Infof("/%v/%v, /%v/%v created", bucketName, fileName, bucketName, fileNameThumbnail)
}
func (p *program) downloadWriteKey(key string, w http.ResponseWriter) error {
bl, found := downloadMapper[key]
if !found {
http.Error(w, "Not found", 404)
return nil
}
w.Header().Set("Content-Disposition", `attachment; filename="photos.tar"`)
tw := tar.NewWriter(w)
result := &bytes.Buffer{}
for _, item := range bl.list {
filename := filepath.Join(config.FileRoot, bl.folder, item)
fi, err := os.Stat(filename)
if err != nil {
return err
}
if !bl.small {
header, err := tar.FileInfoHeader(fi, "")
if err != nil {
return err
}
err = tw.WriteHeader(header)
if err != nil {
return err
}
f, err := os.Open(filename)
if err != nil {
return err
}
_, err = io.Copy(tw, f)
f.Close()
if err != nil {
return err
}
} else {
fullImage, err := imaging.Open(filename)
if err != nil {
return err
}
resized := imaging.Fit(fullImage, config.SmallRes, config.SmallRes, imaging.Linear)
err = imaging.Encode(result, resized, imaging.JPEG)
if err != nil {
return err
}
header := &tar.Header{
Name: item,
Size: int64(result.Len()),
Mode: 0666,
ModTime: fi.ModTime(),
}
err = tw.WriteHeader(header)
if err != nil {
return err
}
_, err = io.Copy(tw, result)
if err != nil {
return err
}
result.Reset()
}
}
return tw.Close()
}
func SaveAndCropImage(isCreate bool) func(scope *gorm.Scope) {
return func(scope *gorm.Scope) {
for _, field := range scope.Fields() {
if media, ok := field.Field.Addr().Interface().(MediaLibrary); ok {
option := parseTagOption(field.Tag.Get("media_library"))
if media.GetFileHeader() != nil || media.NeedCrop() {
var file multipart.File
var err error
if fileHeader := media.GetFileHeader(); fileHeader != nil {
file, err = media.GetFileHeader().Open()
} else {
file, err = media.Retrieve(media.URL("original"))
}
if scope.Err(err) != nil {
return
}
if url := media.GetURL(option, scope, field, media); url == "" {
scope.Err(errors.New("invalid URL"))
} else {
result, _ := json.Marshal(map[string]string{"Url": url})
media.Scan(string(result))
}
if isCreate && !scope.HasError() {
if value, err := media.Value(); err == nil {
gorm.Update(scope.New(scope.Value).InstanceSet("gorm:update_attrs", map[string]interface{}{field.DBName: value}))
}
}
if file != nil {
defer file.Close()
if media.IsImage() {
// Save Original Image
if scope.Err(media.Store(media.URL("original"), option, file)) == nil {
file.Seek(0, 0)
// Crop & Resize
if img, err := imaging.Decode(file); scope.Err(err) == nil {
if format, err := getImageFormat(media.URL()); scope.Err(err) == nil {
if cropOption := media.GetCropOption("original"); cropOption != nil {
img = imaging.Crop(img, *cropOption)
}
// Save default image
var buffer bytes.Buffer
imaging.Encode(&buffer, img, *format)
media.Store(media.URL(), option, &buffer)
for key, size := range media.GetSizes() {
newImage := img
if cropOption := media.GetCropOption(key); cropOption != nil {
newImage = imaging.Crop(newImage, *cropOption)
}
dst := imaging.Thumbnail(newImage, size.Width, size.Height, imaging.Lanczos)
var buffer bytes.Buffer
imaging.Encode(&buffer, dst, *format)
media.Store(media.URL(key), option, &buffer)
}
}
}
}
} else {
// Save File
scope.Err(media.Store(media.URL(), option, file))
}
}
}
}
}
}
}
func handleServeImage(ctx context.Context, w http.ResponseWriter, r *http.Request) {
img, err := ImageByID(sq.DB(ctx), web.Args(ctx).ByIndex(0))
switch err {
case nil:
// all good
case sq.ErrNotFound:
web.StdJSONResp(w, http.StatusNotFound)
return
default:
log.Error("cannot get object",
"object", web.Args(ctx).ByIndex(0),
"error", err.Error())
web.StdJSONResp(w, http.StatusInternalServerError)
return
}
if web.CheckLastModified(w, r, img.Created) {
return
}
fs := FileStore(ctx)
fd, err := fs.Read(img.Created.Year(), img.ImageID)
if err != nil {
log.Error("cannot read image file",
"image", img.ImageID,
"error", err.Error())
web.StdJSONResp(w, http.StatusInternalServerError)
return
}
defer fd.Close()
w.Header().Set("X-Image-ID", img.ImageID)
w.Header().Set("X-Image-Width", fmt.Sprint(img.Width))
w.Header().Set("X-Image-Height", fmt.Sprint(img.Height))
w.Header().Set("X-Image-Created", img.Created.Format(time.RFC3339))
w.Header().Set("Content-Type", "image/jpeg")
if r.URL.Query().Get("resize") == "" {
io.Copy(w, fd)
return
}
image, err := jpeg.Decode(fd)
if err != nil {
log.Error("cannot read image file",
"image", img.ImageID,
"error", err.Error())
web.StdJSONResp(w, http.StatusInternalServerError)
return
}
var width, height int
if _, err := fmt.Sscanf(r.URL.Query().Get("resize"), "%dx%d", &width, &height); err != nil {
log.Error("cannot resize image",
"image", img.ImageID,
"error", err.Error())
} else {
switch img.Orientation {
case 1:
// all good
case 3:
image = imaging.Rotate180(image)
case 8:
image = imaging.Rotate90(image)
case 6:
image = imaging.Rotate270(image)
default:
log.Debug("unknown image orientation",
"decoder", "EXIF",
"image", img.ImageID,
"value", fmt.Sprint(img.Orientation))
}
image = imaging.Fill(image, width, height, imaging.Center, imaging.Linear)
}
imaging.Encode(w, image, imaging.JPEG)
}
func (p *program) serveFile(w http.ResponseWriter, r *http.Request, fullPath, urlPath, resolutionString string) error {
if len(resolutionString) == 0 {
http.ServeFile(w, r, fullPath)
return nil
}
createThumbFrom := fullPath
imgSize, err := strconv.Atoi(resolutionString)
if err != nil {
return err
}
isMovie := false
cachePath := filepath.Join(p.cacheDir, r.URL.Path)
if strings.HasSuffix(urlPath, ".mp4") {
// Movie: avconv -i /data/store/Pictures/2015-Q1/VID_20150125_1928.mp4 -vframes 1 -ss 00:00:01 out.jpg
createThumbFrom = cachePath + ".orig.jpg"
cachePath = cachePath + ".jpg"
isMovie = true
}
_, err = os.Stat(cachePath)
if os.IsNotExist(err) {
if isMovie {
var output []byte
for _, time := range movieTimes {
cmd := exec.Command("avconv", "-i", fullPath, "-vframes", "1", "-ss", time, createThumbFrom)
output, err = cmd.CombinedOutput()
if err == nil {
_, err = os.Stat(createThumbFrom)
// Make sure avconv wrote file.
if os.IsNotExist(err) {
continue
}
break
}
}
if err != nil {
logger.Errorf("Problem converting thumbnail for movie: %v\n%s\n", err, output)
createThumbFrom = filepath.Join(p.execDir, "template", badThumb)
}
}
// Resize image, open cache image.
cacheDir, _ := filepath.Split(cachePath)
err := os.MkdirAll(cacheDir, 0777)
if err != nil {
return err
}
fullImage, err := imaging.Open(createThumbFrom)
if err != nil {
return err
}
resized := imaging.Fit(fullImage, imgSize, imgSize, imaging.Linear)
// Um, assume JPG for now.
cf, err := os.Create(cachePath)
if err != nil {
return err
}
err = imaging.Encode(cf, resized, imaging.JPEG)
cf.Close()
if err != nil {
return err
}
}
http.ServeFile(w, r, cachePath)
return nil
}
func thumbImage(r io.Reader, width int, height int) (buf *bytes.Buffer, err error) {
buf = new(bytes.Buffer)
imageData, err := ioutil.ReadAll(r)
if err != nil {
log.Println("cannot read response", err)
return nil, err
}
imageBuffer := bytes.NewBuffer(imageData)
img, formatString, err := image.Decode(imageBuffer)
if err != nil {
log.Println("cannot decode image", err)
return
}
switch formatString {
case "jpg":
fallthrough
case "jpeg":
croppedImg := imaging.Thumbnail(img, width, height, imaging.Lanczos)
imaging.Encode(buf, croppedImg, imaging.JPEG)
return
case "png":
croppedImg := imaging.Thumbnail(img, width, height, imaging.Lanczos)
imaging.Encode(buf, croppedImg, imaging.PNG)
case "bmp":
croppedImg := imaging.Thumbnail(img, width, height, imaging.Lanczos)
imaging.Encode(buf, croppedImg, imaging.BMP)
return
case "gif":
imageBuffer = bytes.NewBuffer(imageData)
g, err := gif.DecodeAll(imageBuffer)
if err != nil {
log.Println("cannot decode gif", err)
return nil, err
}
// over-protected version, still slow
// c := thumbGif(g, width, height)
// for r := range c {
// g.Image[r.Index] = r.Img
// }
// multiple reader, no wirter to golang map is ok
// it's fastest
var wg sync.WaitGroup
wg.Add(len(g.Image))
imageArray := make([]*image.Paletted, len(g.Image))
for i := range g.Image {
imageArray[i] = g.Image[i]
go func(index int) {
thumb := imaging.Thumbnail(imageArray[index], width, height, imaging.Lanczos)
imageArray[index] = image.NewPaletted(image.Rect(0, 0, width, height), imageArray[index].Palette)
draw.Draw(imageArray[index], image.Rect(0, 0, width, height), thumb, image.Pt(0, 0), draw.Over)
wg.Done()
}(i)
}
wg.Wait()
for i := range g.Image {
g.Image[i] = imageArray[i]
}
// plain single thread version, too slow
// for i := range g.Image {
// thumb := imaging.Thumbnail(g.Image[i], width, height, imaging.Lanczos)
// g.Image[i] = image.NewPaletted(image.Rect(0, 0, width, height), g.Image[i].Palette)
// draw.Draw(g.Image[i], image.Rect(0, 0, width, height), thumb, image.Pt(0, 0), draw.Over)
// }
g.Config.Width, g.Config.Height = width, height
err = gif.EncodeAll(buf, g)
if err != nil {
log.Println("cannot encode gif", err)
return nil, err
}
}
return
}
// CreateThumnail builds a JPG thumbnail and can rotate if an exif bit is set.
func CreateThumbnail(deps dependencies.Dependencies, r io.ReadSeeker) (string, int, error) {
raw, format, err := image.Decode(r)
if format == "" {
return "", 0, nil
}
if format == "jpeg" || format == "jpg" {
deps.Debug("Received JPG")
orientation, err := readOrientation(r)
if err == nil {
deps.Debug("Rotating JPG", "orientation", orientation)
raw = rotate(raw, orientation)
}
}
deps.Debug("Thumbnail format", "fmt", format)
if err != nil {
deps.Error("Failed to decode image")
return "", 0, err
}
fs := deps.Fs
tmpFilePath := lib.TempFilePath("thumbnail")
tmpFile, err := fs.Create(tmpFilePath)
if err != nil {
deps.Error("Failed to create temp file", "path", tmpFilePath)
return "", 0, err
}
// Make sure we close.
closeTmpFile := func() {
if tmpFile != nil {
tmpFile.Close()
tmpFile = nil
}
}
defer closeTmpFile()
h := sha1.New()
var wc writeCounter
mw := io.MultiWriter(tmpFile, h, wc)
// Generate Thumbnail image data
dst := imaging.Fill(raw, 200, 200, imaging.Center, imaging.Lanczos)
// Write it
err = imaging.Encode(mw, dst, imaging.JPEG)
if err != nil {
deps.Error("Failed to encode data")
return "", 0, err
}
hash := fmt.Sprintf("%x", h.Sum(nil))
deps.Debug("Thumbnail hash", "hash:", hash)
newPath := lib.LocalPath(hash)
// Move temp thumbnail to final destination.
err = os.Rename(tmpFilePath, newPath)
if err != nil {
deps.Error("Failed to rename file")
// Todo delete file
return hash, int(wc), err
}
// Set permissons
err = fs.Chmod(newPath, 0644)
if err != nil {
deps.Error("Failed to set permissions", "path", newPath)
// Todo delete file
return hash, int(wc), err
}
return hash, int(wc), nil
}