func modData(w http.ResponseWriter, r *http.Request) { c := appengine.NewContext(r) if s, ok := sess.IsSess(w, r, c); ok { u, _ := model.GetCta(c, s.User) emp, err := u.GetEmpresa(c, r.FormValue("IdEmp")) if err != nil { http.Error(w, err.Error(), http.StatusInternalServerError) return } imgo := model.GetLogo(c, r.FormValue("IdEmp")) if imgo == nil { imgo = new(model.Image) imgo.IdEmp = emp.IdEmp } fd := imgToForm(*imgo) tc := make(map[string]interface{}) tc["Sess"] = s tc["Empresa"] = emp tc["FormData"] = fd if r.Method != "POST" { // No upload; show the upload form. micrositio(w, r) return } idemp := r.FormValue("IdEmp") name := r.FormValue("Name") desc := r.FormValue("Desc") url := r.FormValue("Url") sp1 := r.FormValue("Sp1") sp2 := r.FormValue("Sp2") // key := datastore.NewKey(c, "EmpLogo", r.FormValue("id"), 0, nil) // im := new(model.Image) // Save the image under a unique key, a hash of the image. imgo = &model.Image{ Data: imgo.Data, IdEmp: idemp, IdImg: imgo.IdImg, Kind: "EmpLogo", Name: name, Desc: desc, Sizepx: 0, Sizepy: 0, Url: url, Type: "", Sp1: sp1, Sp2: sp2, Sp3: imgo.Sp3, Sp4: imgo.Sp4, Np1: 0, Np2: 0, Np3: 0, Np4: 0, } _, err = model.PutLogo(c, imgo) if err != nil { tc["Error"] = struct{ Cantsave string }{"cantsave"} micrositioTpl.Execute(w, tc) return } micrositio(w, r) } else { http.Redirect(w, r, "/r/registro", http.StatusFound) } }
// Resize only if picture from EmpLogo is more than 80 pix width // If resize, save image to entity king ShortLogo and stream // If no resize is necesary, save to entity ShortLogo and stream func rslogo(w http.ResponseWriter, r *http.Request) { c := appengine.NewContext(r) if r.Method == "GET" { sf, _ := strconv.Atoi(r.FormValue("s")) force, _ := strconv.Atoi(r.FormValue("force")) // Check for shortlogo var simg model.Image simg.Kind = "ShortLogo" if r.FormValue("IdEmp") != "" { simg.IdEmp = r.FormValue("IdEmp") } else { w.WriteHeader(http.StatusNotFound) return } if force != 1 { shortlogo, _ := model.GetShortLogo(c, r.FormValue("IdEmp")) // Stream short logo if already exists if shortlogo != nil { w.Header().Set("Content-type", "image/jpeg") w.Write(shortlogo.Data) /* m, _, err := image.Decode(bytes.NewBuffer(shortlogo.Data)) model.Check(err) w.Header().Set("Content-type", "image/jpeg") jpeg.Encode(w, m, nil) */ return } } // Process biglogo if shortlogo doesn't exists // Save and Stream new shortlogo biglogo := model.GetLogo(c, r.FormValue("IdEmp")) if biglogo == nil { // No such imageb w.WriteHeader(http.StatusNotFound) return } i, _, err := image.Decode(bytes.NewBuffer(biglogo.Data)) if err != nil { // ERR_BADFORMAT w.WriteHeader(http.StatusNotFound) return } const max = 70 if sf == 0 { // We aim for less than max pixels in any dimension. if b := i.Bounds(); b.Dx() > max || b.Dy() > max { // If it's gigantic, it's more efficient to downsample first // and then resize; resizing will smooth out the roughness. if b.Dx() > 2*max || b.Dy() > 2*max { w, h := max*2, max*2 if b.Dx() > b.Dy() { h = b.Dy() * h / b.Dx() } else { w = b.Dx() * w / b.Dy() } i = resize.Resample(i, i.Bounds(), w, h) b = i.Bounds() } w, h := max, max if b.Dx() > b.Dy() { h = b.Dy() * h / b.Dx() } else { w = b.Dx() * w / b.Dy() } i = resize.Resize(i, i.Bounds(), w, h) } else { w, h := max, max if b.Dx() > b.Dy() { h = b.Dy() * h / b.Dx() } else { w = b.Dx() * w / b.Dy() } i = resize.Resize(i, i.Bounds(), w, h) } } else { // We aim for a resize by ratio. b := i.Bounds() h := b.Dy() w := b.Dx() if sf > 0 && sf <= 2 { h = h * sf w = w * sf } else if sf < 0 && sf > -1 { sf = (sf * 2) + sf h = h * (1 / sf) w = w * (1 / sf) } i = resize.Resize(i, i.Bounds(), w, h) } // Encode as a new JPEG image. var buf bytes.Buffer err = jpeg.Encode(&buf, i, nil) if err != nil { // ERR_FAIL_ENCODE w.WriteHeader(http.StatusNotFound) return } // Save the image under a unique key, a hash of the image. simg.IdImg = model.RandId(20) simg.Data = buf.Bytes() simg.Name = biglogo.Name simg.Desc = biglogo.Desc simg.Sizepx = max simg.Sizepy = 0 simg.Url = biglogo.Url simg.Type = "jpeg" simg.Sp1 = biglogo.Sp1 simg.Sp2 = biglogo.Sp2 simg.Sp3 = biglogo.Sp3 simg.Sp4 = biglogo.Sp4 simg.Np1 = biglogo.Np1 simg.Np2 = biglogo.Np2 simg.Np3 = biglogo.Np3 simg.Np4 = biglogo.Np4 _, err = model.PutLogo(c, &simg) if err != nil { // ERR_DATASTORE // Don't return, stream image either way } w.Header().Set("Content-type", "image/jpeg") w.Write(simg.Data) /* m, _, err := image.Decode(bytes.NewBuffer(simg.Data)) model.Check(err) w.Header().Set("Content-type", "image/jpeg") jpeg.Encode(w, m, nil) */ } }
// upload is the HTTP handler for uploading images; it handles "/". func upload(w http.ResponseWriter, r *http.Request) { c := appengine.NewContext(r) var imgprops appimage.ServingURLOptions imgprops.Secure = true imgprops.Size = 180 imgprops.Crop = false if s, ok := sess.IsSess(w, r, c); ok { u, _ := model.GetCta(c, s.User) emp, err := u.GetEmpresa(c, r.FormValue("IdEmp")) if err != nil { http.Error(w, err.Error(), http.StatusInternalServerError) return } imgo := model.GetLogo(c, r.FormValue("IdEmp")) if imgo == nil { imgo = new(model.Image) imgo.IdEmp = emp.IdEmp } fd := imgToForm(*imgo) tc := make(map[string]interface{}) tc["Sess"] = s tc["Empresa"] = emp tc["FormData"] = fd if r.Method != "POST" { // No upload; show the upload form. micrositio(w, r) return } idemp := r.FormValue("IdEmp") sp1 := r.FormValue("Sp1") sp2 := r.FormValue("Sp2") f, _, err := r.FormFile("image") model.Check(err) defer f.Close() // Grab the image data var buf bytes.Buffer io.Copy(&buf, f) i, _, err := image.Decode(&buf) if err != nil { if r.FormValue("tipo") == "async" { //w.Header().Set("Content-Type", "application/json") fmt.Fprintf(w, "<p>'%s'</p>", "No se actualizó el logotipo, formato no aceptado") } else { tc["Error"] = struct{ Badformat string }{"badformat"} micrositioTpl.Execute(w, tc) } return } const max = 600 // We aim for less than max pixels in any dimension. if b := i.Bounds(); b.Dx() > max || b.Dy() > max { // If it's gigantic, it's more efficient to downsample first // and then resize; resizing will smooth out the roughness. if b.Dx() > 2*max || b.Dy() > 2*max { w, h := max*2, max*2 if b.Dx() > b.Dy() { h = b.Dy() * h / b.Dx() } else { w = b.Dx() * w / b.Dy() } i = resize.Resample(i, i.Bounds(), w, h) b = i.Bounds() } w, h := max, max if b.Dx() > b.Dy() { h = b.Dy() * h / b.Dx() } else { w = b.Dx() * w / b.Dy() } i = resize.Resize(i, i.Bounds(), w, h) } // Encode as a new JPEG image. buf.Reset() err = jpeg.Encode(&buf, i, nil) if err != nil { if r.FormValue("tipo") == "async" { fmt.Fprintf(w, "<p>'%s'</p>", "No se actualizó el logotipo, formato no aceptado") } else { tc["Error"] = struct{ Badencode string }{"badencode"} micrositioTpl.Execute(w, tc) } return } var blobkey appengine.BlobKey blob, err := blobstore.Create(c, "image/jpeg") if err != nil { c.Errorf("blobstore Create: %v", idemp) } _, err = blob.Write(buf.Bytes()) if err != nil { c.Errorf("blobstore Write: %v", idemp) } err = blob.Close() if err != nil { c.Errorf("blobstore Close: %v", idemp) } blobkey, err = blob.Key() if err != nil { c.Errorf("blobstore Key Gen: %v", idemp) } if url, err := appimage.ServingURL(c, blobkey, &imgprops); err != nil { c.Errorf("Cannot construct EmpLogo ServingURL : %v", idemp) } else { // Save the image under a unique key, a hash of the image. img := &model.Image{ Data: buf.Bytes(), IdEmp: idemp, IdImg: model.RandId(20), Kind: "EmpLogo", Name: imgo.Name, Desc: imgo.Desc, Sizepx: 0, Sizepy: 0, Url: imgo.Url, Type: "", Sp1: sp1, Sp2: sp2, Sp3: string(blobkey), Sp4: url.String(), Np1: 0, Np2: 0, Np3: 0, Np4: 0, } _, err = model.PutLogo(c, img) if err != nil { if r.FormValue("tipo") == "async" { fmt.Fprintf(w, "<p>'%s'</p>", "No se actualizó el logotipo. Sistema en matenimiento, intente en unos minutos") } else { tc["Error"] = struct{ Cantsave string }{"cantsave"} micrositioTpl.Execute(w, tc) } return } } /* se crea icono */ val := slogores(c, idemp, 70, 0) if val != 0 { tc["Error"] = struct{ Cantsave string }{"cantsave"} micrositioTpl.Execute(w, tc) return } if r.FormValue("tipo") == "async" { fmt.Fprintf(w, "<p></p>") } else { micrositio(w, r) } return } else { http.Redirect(w, r, "/r/registro", http.StatusFound) } }
func slogores(c appengine.Context, id string, max int, sf int) int { var simg model.Image // Process biglogo if shortlogo doesn't exists // Save and Stream new shortlogo biglogo := model.GetLogo(c, id) if biglogo == nil { // No such imageb return -1 } i, _, err := image.Decode(bytes.NewBuffer(biglogo.Data)) if err != nil { // ERR_BADFORMAT return -1 } if sf == 0 { // We aim for less than 80 pixels in any dimension. if b := i.Bounds(); b.Dx() > max || b.Dy() > max { // If it's gigantic, it's more efficient to downsample first // and then resize; resizing will smooth out the roughness. if b.Dx() > 2*max || b.Dy() > 2*max { w, h := max*2, max*2 if b.Dx() > b.Dy() { h = b.Dy() * h / b.Dx() } else { w = b.Dx() * w / b.Dy() } i = resize.Resample(i, i.Bounds(), w, h) b = i.Bounds() } w, h := max, max if b.Dx() > b.Dy() { h = b.Dy() * h / b.Dx() } else { w = b.Dx() * w / b.Dy() } i = resize.Resize(i, i.Bounds(), w, h) } else { w, h := max, max if b.Dx() > b.Dy() { h = b.Dy() * h / b.Dx() } else { w = b.Dx() * w / b.Dy() } i = resize.Resize(i, i.Bounds(), w, h) } } else { // We aim for a resize by ratio. b := i.Bounds() h := b.Dy() w := b.Dx() if sf > 0 && sf <= 2 { h = h * sf w = w * sf } else if sf < 0 && sf > -1 { sf = (sf * 2) + sf h = h * (1 / sf) w = w * (1 / sf) } i = resize.Resize(i, i.Bounds(), w, h) } // Encode as a new JPEG image. var buf bytes.Buffer err = jpeg.Encode(&buf, i, nil) if err != nil { // ERR_FAIL_ENCODE return -1 } // Save the image under a unique key, a hash of the image. shortlogo, _ := model.GetShortLogo(c, id) simg.Kind = "ShortLogo" if shortlogo != nil { simg.IdImg = shortlogo.IdImg } else { simg.IdImg = model.RandId(20) } simg.IdEmp = id simg.Data = buf.Bytes() simg.Name = biglogo.Name simg.Desc = biglogo.Desc simg.Sizepx = max simg.Sizepy = 0 simg.Url = biglogo.Url simg.Type = "jpeg" simg.Sp1 = biglogo.Sp1 simg.Sp2 = biglogo.Sp2 simg.Sp3 = biglogo.Sp3 simg.Sp4 = biglogo.Sp4 simg.Np1 = biglogo.Np1 simg.Np2 = biglogo.Np2 simg.Np3 = biglogo.Np3 simg.Np4 = biglogo.Np4 _, err = model.PutLogo(c, &simg) if err != nil { return -1 } return 0 }