// 复制外网的图片, 成公共图片 放在/upload下 // 都要好好的计算大小 func (c File) CopyHttpImage(src string) revel.Result { re := info.NewRe() fileUrlPath := "upload/" + c.GetUserId() + "/images" dir := revel.BasePath + "/public/" + fileUrlPath err := os.MkdirAll(dir, 0755) if err != nil { return c.RenderJson(re) } filesize, filename, _, ok := netutil.WriteUrl(src, dir) if !ok { re.Msg = "copy error" return c.RenderJson(re) } // File fileInfo := info.File{Name: filename, Title: filename, Path: fileUrlPath + "/" + filename, Size: filesize} id := bson.NewObjectId() fileInfo.FileId = id re.Id = id.Hex() re.Item = fileInfo.Path re.Ok, re.Msg = fileService.AddImage(fileInfo, "", c.GetUserId(), true) return c.RenderJson(re) }
// delete image func (this *FileService) DeleteImage(userId, fileId string) (bool, string) { file := info.File{} db.GetByIdAndUserId(db.Files, fileId, userId, &file) if file.FileId != "" { if db.DeleteByIdAndUserId(db.Files, fileId, userId) { // delete image // TODO file.Path = strings.TrimLeft(file.Path, "/") var err error if strings.HasPrefix(file.Path, "upload") { Log(file.Path) err = os.Remove(revel.BasePath + "/public/" + file.Path) } else { err = os.Remove(revel.BasePath + "/" + file.Path) } if err == nil { return true, "" } return false, "delete file error!" } return false, "db error" } return false, "no such item" }
// add Image func (this *FileService) AddImage(image info.File, albumId, userId string, needCheckSize bool) (ok bool, msg string) { image.CreatedTime = time.Now() if albumId != "" { image.AlbumId = bson.ObjectIdHex(albumId) } else { image.AlbumId = bson.ObjectIdHex(DEFAULT_ALBUM_ID) image.IsDefaultAlbum = true } image.UserId = bson.ObjectIdHex(userId) ok = db.Insert(db.Files, image) return }
// 复制图片 func (this *FileService) CopyImage(userId, fileId, toUserId string) (bool, string) { // 是否已经复制过了 file2 := info.File{} db.GetByQ(db.Files, bson.M{"UserId": bson.ObjectIdHex(toUserId), "FromFileId": bson.ObjectIdHex(fileId)}, &file2) if file2.FileId != "" { return true, file2.FileId.Hex() } // 复制之 file := info.File{} db.GetByIdAndUserId(db.Files, fileId, userId, &file) if file.FileId == "" || file.UserId.Hex() != userId { return false, "" } _, ext := SplitFilename(file.Name) newFilename := NewGuid() + ext dir := "files/" + toUserId + "/images" filePath := dir + "/" + newFilename err := os.MkdirAll(dir, 0755) if err != nil { return false, "" } _, err = CopyFile(revel.BasePath+"/"+file.Path, revel.BasePath+"/"+filePath) if err != nil { Log(err) return false, "" } fileInfo := info.File{Name: newFilename, Title: file.Title, Path: filePath, Size: file.Size, FromFileId: file.FileId} id := bson.NewObjectId() fileInfo.FileId = id fileId = id.Hex() Ok, _ := this.AddImage(fileInfo, "", toUserId, false) if Ok { return Ok, id.Hex() } return false, "" }
// 上传图片, 公用方法 // upload image common func func (c File) uploadImage(from, albumId string) (re info.Re) { var fileUrlPath = "" var fileId = "" var resultCode = 0 // 1表示正常 var resultMsg = "error" // 错误信息 var Ok = false defer func() { re.Id = fileId // 只是id, 没有其它信息 re.Code = resultCode re.Msg = resultMsg re.Ok = Ok }() file, handel, err := c.Request.FormFile("file") if err != nil { return re } defer file.Close() // 生成上传路径 if from == "logo" || from == "blogLogo" { fileUrlPath = "public/upload/" + c.GetUserId() + "/images/logo" } else { fileUrlPath = "files/" + c.GetUserId() + "/images" } dir := revel.BasePath + "/" + fileUrlPath err = os.MkdirAll(dir, 0755) if err != nil { return re } // 生成新的文件名 filename := handel.Filename var ext string if from == "pasteImage" { ext = ".png" // TODO 可能不是png类型 } else { _, ext = SplitFilename(filename) if ext != ".gif" && ext != ".jpg" && ext != ".png" && ext != ".bmp" && ext != ".jpeg" { resultMsg = "Please upload image" return re } } filename = NewGuid() + ext data, err := ioutil.ReadAll(file) if err != nil { LogJ(err) return re } var maxFileSize float64 if from == "logo" { maxFileSize = configService.GetUploadSize("uploadAvatarSize") } else if from == "blogLogo" { maxFileSize = configService.GetUploadSize("uploadBlogLogoSize") } else { maxFileSize = configService.GetUploadSize("uploadImageSize") } if maxFileSize <= 0 { maxFileSize = 1000 } // > 2M? if float64(len(data)) > maxFileSize*float64(1024*1024) { resultCode = 0 resultMsg = fmt.Sprintf("The file Size is bigger than %vM", maxFileSize) return re } toPath := dir + "/" + filename err = ioutil.WriteFile(toPath, data, 0777) if err != nil { LogJ(err) return re } // 改变成gif图片 _, toPathGif := TransToGif(toPath, 0, true) filename = GetFilename(toPathGif) filesize := GetFilesize(toPathGif) fileUrlPath += "/" + filename resultCode = 1 resultMsg = "Upload Success!" // File fileInfo := info.File{Name: filename, Title: handel.Filename, Path: fileUrlPath, Size: filesize} id := bson.NewObjectId() fileInfo.FileId = id fileId = id.Hex() if from == "logo" || from == "blogLogo" { fileId = "public/upload/" + c.GetUserId() + "/images/logo/" + filename } Ok, resultMsg = fileService.AddImage(fileInfo, albumId, c.GetUserId(), from == "" || from == "pasteImage") resultMsg = c.Message(resultMsg) fileInfo.Path = "" // 不要返回 re.Item = fileInfo return re }