func ProcessPhoto(photo *Photo) error {
origImg, err := imaging.Open(GetPhotoPath(photo, "o"))
if err != nil {
return err
}
src := imaging.Clone(origImg)
for _, sz := range PhotoSizes {
var dst image.Image
switch sz.Type {
case "thumbnail":
dst = imaging.Thumbnail(src, sz.Width, sz.Height, imaging.Lanczos)
case "fit":
dst = imaging.Fit(src, sz.Width, sz.Height, imaging.Lanczos)
}
err := imaging.Save(dst, GetPhotoPath(photo, sz.Suffix))
if err != nil {
return err
}
}
return nil
}
func ProcessAvatar(user *User) error {
origImg, err := imaging.Open(GetAvatarPath(user, "o"))
if err != nil {
return err
}
src := imaging.Clone(origImg)
for _, sz := range AvatarSizes {
var dst image.Image
switch sz.Type {
case "thumbnail":
dst = imaging.Thumbnail(src, sz.Width, sz.Height, imaging.Lanczos)
case "fit":
dst = imaging.Fit(src, sz.Width, sz.Height, imaging.Lanczos)
}
err := imaging.Save(dst, GetAvatarPath(user, sz.Suffix))
if err != nil {
return err
}
}
return nil
}
func (api *Api) Resize(imgloc string, xsize, ysize int, resizeType string) bool {
dest := setSize(imgloc, xsize, ysize)
if _, err := os.Stat(dest); err == nil {
return true
}
bts, err := ioutil.ReadFile(imgloc)
if err != nil {
fmt.Println(err)
return false
}
rdr := bytes.NewReader(bts)
i, _, err := image.Decode(rdr)
if err != nil {
fmt.Println(err)
return false
}
var fsimg *image.NRGBA
switch resizeType {
case "fit":
fsimg = imaging.Fit(i, xsize, ysize, imaging.Lanczos)
case "thumb":
fsimg = imaging.Thumbnail(i, xsize, ysize, imaging.Lanczos)
default:
fsimg = imaging.Resize(i, xsize, ysize, imaging.Lanczos)
}
out, err := os.Create(dest)
if err != nil {
return false
}
defer out.Close()
jpeg.Encode(out, fsimg, nil)
return true
}
func (h *ImgHandler) processImage(in io.Reader, out io.Writer, mode string, width int, height int) error {
if Config.Image.UseGoRoutine {
ImageChannel <- 1
defer func() {
<-ImageChannel
}()
}
img, _, err := image.Decode(in)
if err != nil {
glog.Fatal(err)
return err
}
var m *image.NRGBA
switch mode {
case "z":
m = imaging.Fit(img, width, height, imaging.Lanczos)
case "x":
m = imaging.Fill(img, width, height, imaging.Center, imaging.Lanczos)
}
jpeg.Encode(out, m, &jpeg.Options{Config.Image.ReadQuality})
return nil
}
// Extracts cover
func (c *Convertor) ExtractCover(file string, info os.FileInfo) {
c.CurrFile += 1
cover, err := c.GetCoverImage(file, info)
if err != nil {
fmt.Fprintf(os.Stderr, "Error GetCoverImage: %v\n", err.Error())
return
}
if c.Opts.Width > 0 || c.Opts.Height > 0 {
if c.Opts.Fit {
cover = imaging.Fit(cover, c.Opts.Width, c.Opts.Height, filters[c.Opts.Filter])
} else {
cover = imaging.Resize(cover, c.Opts.Width, c.Opts.Height, filters[c.Opts.Filter])
}
}
filename := filepath.Join(c.Opts.Outdir, fmt.Sprintf("%s.jpg", c.getBasename(file)))
f, err := os.Create(filename)
if err != nil {
fmt.Fprintf(os.Stderr, "Error Create: %v\n", err.Error())
return
}
defer f.Close()
jpeg.Encode(f, cover, &jpeg.Options{c.Opts.Quality})
}
// transformImage modifies the image m based on the transformations specified
// in opt.
func transformImage(m image.Image, opt Options) image.Image {
// resize if needed
if w, h, resize := resizeParams(m, opt); resize {
if opt.Fit {
m = imaging.Fit(m, w, h, resampleFilter)
} else {
if w == 0 || h == 0 {
m = imaging.Resize(m, w, h, resampleFilter)
} else {
m = imaging.Thumbnail(m, w, h, resampleFilter)
}
}
}
// flip
if opt.FlipVertical {
m = imaging.FlipV(m)
}
if opt.FlipHorizontal {
m = imaging.FlipH(m)
}
// rotate
switch opt.Rotate {
case 90:
m = imaging.Rotate90(m)
case 180:
m = imaging.Rotate180(m)
case 270:
m = imaging.Rotate270(m)
}
return m
}
// Extracts thumbnail
func (c *Convertor) ExtractThumbnail(file string, info os.FileInfo) {
c.CurrFile += 1
cover, err := c.GetCoverImage(file, info)
if err != nil {
fmt.Fprintf(os.Stderr, "Error GetCoverImage: %v\n", err.Error())
return
}
if err != nil {
fmt.Fprintf(os.Stderr, "Error Thumbnail: %v\n", err.Error())
return
}
if c.Opts.Width > 0 || c.Opts.Height > 0 {
if c.Opts.Fit {
cover = imaging.Fit(cover, c.Opts.Width, c.Opts.Height, filters[c.Opts.Filter])
} else {
cover = imaging.Resize(cover, c.Opts.Width, c.Opts.Height, filters[c.Opts.Filter])
}
} else {
cover = imaging.Resize(cover, 256, 0, filters[c.Opts.Filter])
}
imagick.Initialize()
mw := imagick.NewMagickWand()
defer mw.Destroy()
b := new(bytes.Buffer)
png.Encode(b, cover)
err = mw.ReadImageBlob(b.Bytes())
if err != nil {
fmt.Fprintf(os.Stderr, "Error ReadImageBlob: %v\n", err.Error())
}
var fileuri string
var filename string
if c.Opts.Outfile == "" {
fileuri = "file://" + file
filename = filepath.Join(c.Opts.Outdir, fmt.Sprintf("%x.png", md5.Sum([]byte(fileuri))))
} else {
abs, _ := filepath.Abs(c.Opts.Outfile)
fileuri = "file://" + abs
filename = abs
}
mw.SetImageFormat("PNG")
mw.SetImageProperty("Software", "CBconvert")
mw.SetImageProperty("Description", "Thumbnail of "+fileuri)
mw.SetImageProperty("Thumb::URI", fileuri)
mw.SetImageProperty("Thumb::MTime", strconv.FormatInt(info.ModTime().Unix(), 10))
mw.SetImageProperty("Thumb::Size", strconv.FormatInt(info.Size(), 10))
mw.SetImageProperty("Thumb::Mimetype", mime.TypeByExtension(filepath.Ext(file)))
mw.WriteImage(filename)
}
func resizeEmoji(img image.Image, width int, height int) image.Image {
emojiWidth := float64(width)
emojiHeight := float64(height)
var emoji image.Image
if emojiHeight <= MaxEmojiHeight && emojiWidth <= MaxEmojiWidth {
emoji = img
} else {
emoji = imaging.Fit(img, MaxEmojiWidth, MaxEmojiHeight, imaging.Lanczos)
}
return emoji
}
func MakeFromImage(srcImage image.Image, t string, w, h int) (image *image.NRGBA, err error) {
switch t {
case "thumbnail":
image = imaging.Thumbnail(srcImage, w, h, imaging.Lanczos)
case "resize":
image = imaging.Resize(srcImage, w, h, imaging.Lanczos)
case "fit":
image = imaging.Fit(srcImage, w, h, imaging.Lanczos)
default:
image = imaging.Thumbnail(srcImage, w, h, imaging.Lanczos)
}
return image, nil
}
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 MakeFromReader(reader io.Reader, t string, w, h int) (image *image.NRGBA, err error) {
srcImage, err := Open(reader)
if err != nil {
return nil, err
}
switch t {
case "thumbnail":
image = imaging.Thumbnail(srcImage, w, h, imaging.Lanczos)
case "resize":
image = imaging.Resize(srcImage, w, h, imaging.Lanczos)
case "fit":
image = imaging.Fit(srcImage, w, h, imaging.Lanczos)
default:
image = imaging.Thumbnail(srcImage, w, h, imaging.Lanczos)
}
return
}
// Transforms image (resize, rotate, flip, brightness, contrast)
func (c *Convertor) TransformImage(img image.Image) image.Image {
var i image.Image = img
if c.Opts.Width > 0 || c.Opts.Height > 0 {
if c.Opts.Fit {
i = imaging.Fit(i, c.Opts.Width, c.Opts.Height, filters[c.Opts.Filter])
} else {
i = imaging.Resize(i, c.Opts.Width, c.Opts.Height, filters[c.Opts.Filter])
}
}
if c.Opts.Rotate > 0 {
switch c.Opts.Rotate {
case 90:
i = imaging.Rotate90(i)
case 180:
i = imaging.Rotate180(i)
case 270:
i = imaging.Rotate270(i)
}
}
if c.Opts.Flip != "none" {
switch c.Opts.Flip {
case "horizontal":
i = imaging.FlipH(i)
case "vertical":
i = imaging.FlipV(i)
}
}
if c.Opts.Brightness != 0 {
i = imaging.AdjustBrightness(i, c.Opts.Brightness)
}
if c.Opts.Contrast != 0 {
i = imaging.AdjustContrast(i, c.Opts.Contrast)
}
return i
}
// Create HD and Thumbs Photos
func CreatePhotos(a *model.Album, p *model.Photo) (err error) {
src, err := imaging.Open(a.PathSource() + p.OriginalName)
if err != nil {
return err
}
var dst *image.NRGBA
filename := a.PathHD() + p.Filename
log.Printf("Saving HD: %s\n", filename)
dst = imaging.Fit(src, cfg.Image.MaxWidth, cfg.Image.MaxHeight, imaging.Lanczos)
size, err := rewriteImage(dst, filename)
if err != nil {
return err
}
p.FileSizeHD = size
filename = a.PathThumbs() + p.Filename
log.Printf("Saving Thumb: %s\n", filename)
dst = imaging.Thumbnail(dst, cfg.Image.ThumbWidth, cfg.Image.ThumbHeight, imaging.CatmullRom) // resize and crop the image to make a 200x200 thumbnail
_, err = rewriteImage(dst, filename)
return err
}
func do_params(ctx *context, ctrl *ext.Controller) bool {
qr := ctrl.Request.Param("qrcode")
if qr != "" {
if size, err := strconv.ParseInt(qr, 10, 64); err == nil {
return do_qrcode(ctx, ctrl, int(size))
}
}
resize := ctrl.Request.Param("resize")
if resize != "" {
fn := path.Join(ctx.app.Options.StaticRoot, "resize", util.ResizeKey(ctrl.Request.URI(), resize))
if util.Exist(fn) {
ctrl.File(fn)
return true
}
if rect, err := util.ParseRect(resize, "x"); err == nil {
f1 := path.Join(ctx.app.Options.StaticRoot, ctrl.Request.URI())
ctx.Info("f1 :%s", f1)
if src, err := imaging.Open(f1); err == nil {
dst := imaging.Resize(src, rect.Width, rect.Height, imaging.Lanczos)
if err := imaging.Save(dst, fn); err == nil {
ctrl.File(fn)
return true
}
}
}
}
fit := ctrl.Request.Param("fit")
if fit != "" {
fn := path.Join(ctx.app.Options.StaticRoot, "fit", util.ResizeKey(ctrl.Request.URI(), resize))
if util.Exist(fn) {
ctrl.File(fn)
return true
}
if rect, err := util.ParseRect(resize, "x"); err == nil {
f1 := path.Join(ctx.app.Options.StaticRoot, ctrl.Request.URI())
if src, err := imaging.Open(f1); err == nil {
dst := imaging.Fit(src, rect.Width, rect.Height, imaging.Lanczos)
if err := imaging.Save(dst, fn); err == nil {
ctrl.File(fn)
return true
}
}
}
}
thumbnail := ctrl.Request.Param("thumbnail")
if thumbnail != "" {
fn := path.Join(ctx.app.Options.StaticRoot, "thumbnail", util.ResizeKey(ctrl.Request.URI(), resize))
if util.Exist(fn) {
ctrl.File(fn)
return true
}
if rect, err := util.ParseRect(thumbnail, "x"); err == nil {
f1 := path.Join(ctx.app.Options.StaticRoot, ctrl.Request.URI())
if src, err := imaging.Open(f1); err == nil {
dst := imaging.Thumbnail(src, rect.Width, rect.Height, imaging.Lanczos)
if err := imaging.Save(dst, fn); err == nil {
ctrl.File(fn)
return true
}
}
}
}
return false
}
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()
}
// transformImage modifies the image m based on the transformations specified
// in opt.
func transformImage(m image.Image, opt Options) image.Image {
// convert percentage width and height values to absolute values
imgW := m.Bounds().Max.X - m.Bounds().Min.X
imgH := m.Bounds().Max.Y - m.Bounds().Min.Y
var w, h int
if 0 < opt.Width && opt.Width < 1 {
w = int(float64(imgW) * opt.Width)
} else if opt.Width < 0 {
w = 0
} else {
w = int(opt.Width)
}
if 0 < opt.Height && opt.Height < 1 {
h = int(float64(imgH) * opt.Height)
} else if opt.Height < 0 {
h = 0
} else {
h = int(opt.Height)
}
// never resize larger than the original image
if !opt.ScaleUp {
if w > imgW {
w = imgW
}
if h > imgH {
h = imgH
}
}
// resize
if w != 0 || h != 0 {
if opt.Fit {
m = imaging.Fit(m, w, h, resampleFilter)
} else {
if w == 0 || h == 0 {
m = imaging.Resize(m, w, h, resampleFilter)
} else {
m = imaging.Thumbnail(m, w, h, resampleFilter)
}
}
}
// flip
if opt.FlipVertical {
m = imaging.FlipV(m)
}
if opt.FlipHorizontal {
m = imaging.FlipH(m)
}
// rotate
switch opt.Rotate {
case 90:
m = imaging.Rotate90(m)
case 180:
m = imaging.Rotate180(m)
case 270:
m = imaging.Rotate270(m)
}
return m
}
func getItemThumbnail(s *Service, i *Item, size int) (io.ReadSeeker, string, error) {
key := fmt.Sprintf("thumb-%s-%d", i.Hash, size)
fn := func() (interface{}, error) {
//first check cache.
if cached, err := s.cache.Get(key); err == nil {
return &readSeekerMimeType{read: cached}, nil
}
//massive short cut here. if we have a "large" thumb then just resize that...
if size < THUMBNAIL_LARGE {
//check cache for LARGE
key := fmt.Sprintf("thumb-%s-%d", i.Hash, THUMBNAIL_LARGE)
if cached, err := s.cache.Get(key); err == nil {
//resize this.
if img, _, err := image.Decode(cached); err != nil {
img = imaging.Fit(img, size, size, imaging.Box)
var wr bytes.Buffer
if err := jpeg.Encode(&wr, img, nil); err != nil {
r := bytes.NewReader(wr.Bytes())
s.cache.SetReader(key, r)
return &readSeekerMimeType{read: r, mime: "image/jpeg"}, nil
}
}
}
}
//no cache, create file.
rsc, err := s.store.Get(i.Hash)
if err != nil {
return nil, err
}
defer rsc.Close()
var r io.ReadSeeker
var m string
//to get the type factory that may be capable of creating a thumbnail we use
//the typeMap
f := InspecterFor(i)
var ok bool
var tmb Thumbnailer
if f != nil {
tmb, ok = f.(Thumbnailer)
}
if ok {
if err = f.EnsureMeta(i); err == nil {
//ensure we don't try to make too many at once...
//before we block on putting a token into the bucket. if the bucket is full this will block.
//after we take a token out of the bucket, so another can process.
thumbLimit <- struct{}{}
r, m, err = tmb.Thumbnail(rsc, size)
<-thumbLimit
s.cache.SetReader(key, r)
}
} else {
//fake it
return &readSeekerMimeType{
read: bytes.NewReader(createGif(uint16(size), uint16(size))),
mime: "image/gif",
}, nil
}
if err != nil {
return nil, err
}
return &readSeekerMimeType{read: r, mime: m}, nil
}
r, err := thumbGroup.Do(key, fn)
if err != nil {
return nil, "", err
}
rsmt := r.(*readSeekerMimeType)
return rsmt.read, rsmt.mime, nil
}
func (a *Api) Create(data []byte, name string, descr string) (Img, error) {
named := true
bts := bytes.NewReader(data)
img, _, err := image.Decode(bts)
if err != nil {
return Img{}, err
}
tm := time.Now()
if name == "" || len(name) <= int(a.nesting) {
name = randName()
named = false
}
for {
found, err := a.ExistName(name)
if err != nil {
return Img{}, err
}
if found {
name = randName()
}
if !found {
break
}
}
path := a.path
for i := uint8(0); i < a.nesting; i++ {
path += "/" + name[i:i+1]
}
os.MkdirAll(path, 0777)
for _, v := range a.sizes {
save_path := path + "/" + name + "_" + strconv.Itoa(v.Width) + "x" +
strconv.Itoa(v.Height)
save_path_with_ex := save_path + ".jpg"
if v.Crop == "thumb" {
c := imaging.Thumbnail(img, v.Width, v.Height, imaging.Lanczos)
imaging.Save(c, save_path_with_ex)
} else if v.Crop == "fit" {
c := imaging.Fit(img, v.Width, v.Height, imaging.Lanczos)
imaging.Save(c, save_path_with_ex)
}
if a.WebpAddr != "" {
cmd := exec.Command(a.WebpAddr, save_path_with_ex, "-o",
save_path+".webp")
err := cmd.Run()
if err != nil {
fmt.Println(err)
return Img{}, errors.New("Webp Not Working")
}
}
}
out, err := os.Create(path + "/" + name + ".jpg")
if err != nil {
return Img{}, err
}
defer out.Close()
jpeg.Encode(out, img, nil)
if a.WebpAddr != "" {
cmd := exec.Command(a.WebpAddr, path+"/"+name+".jpg", "-o",
path+"/"+name+".webp")
err := cmd.Run()
if err != nil {
fmt.Println(err)
return Img{}, errors.New("Webp Not Working")
}
}
im := Img{
Name: name,
Description: descr,
Named: named,
Created: tm.UnixNano(),
Updated: tm.UnixNano(),
}
err = a.Db.Insert(&im)
if err != nil {
return Img{}, err
}
return im, nil
}
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
}
