Example #1
0
File: mzs.go Project: rose312/mzr
func Download(url string) (string, error) {

	ext := strings.ToLower(path.Ext(url))
	filename := helper.MD5(time.Now().String()) + ext
	ipath := "./file/" + "download/" //time.Now().Format("03/04/")
	if !helper.Exist(ipath) {
		os.MkdirAll(ipath, 0644)
	}

	path := ipath + filename
	if e := helper.GetFile(url, path, "default", "http://www.mzitu.com/"); e == nil {

		filehash, _ := helper.Filehash(path, nil)
		fname := helper.Encrypt_hash(filehash+"1", nil)
		if ext == "" {
			ext = ".jpg"
		}
		opath := "./file/" + time.Now().Format("03/04/")
		if !helper.Exist(opath) {
			os.MkdirAll(opath, 0644)
		}

		finalpath := opath + fname + ext

		fmt.Println("path:", path)
		fmt.Println("finalpath:", finalpath)
		if e := helper.MoveFile(path, finalpath); e == nil {
			return finalpath, e
		}

	} else {
		return "", errors.New("下载错误!")
	}
	return "", errors.New("Download函数出现错误!")
}
Example #2
0
func (self *Settings) Avatar() {

	flash := beego.NewFlash()
	self.TplNames = "settings.html"

	targetFolder := "/file/"
	file, handler, e := self.GetFile("avatar")
	uid := self.GetSession("userid").(int64)

	if e != nil {
		flash.Error("SettingsHandler获取文件错误1," + fmt.Sprint(e))
		flash.Store(&self.Controller)

		self.Redirect("/settings/", 302)
		return
	} else {

		if handler != nil {

			ext := strings.ToLower(path.Ext(handler.Filename))
			filename := helper.MD5(time.Now().String()) + ext

			ipath := targetFolder + time.Now().Format("03/04/")
			//ipath := targetFolder + helper.FixedpathByNumber(2, 2)
			os.MkdirAll("."+ipath, 0644)
			path := ipath + filename
			f, err := os.OpenFile("."+path, os.O_WRONLY|os.O_CREATE, 0644)

			if err != nil {
				flash.Error("SettingsHandler获取文件错误2!")
				flash.Store(&self.Controller)

				self.Redirect("/settings/", 302)
				return
			} else {
				io.Copy(f, file)
				defer file.Close()
				defer f.Close()
				input_file := "." + path
				output_file := "." + path
				output_size := "72x72"
				output_align := "center"
				background := "#f0f0f0"
				newpath := ""
				//所有上传的图片都会被缩略处理
				if err := helper.Thumbnail("crop", input_file, output_file, output_size, output_align, background); err != nil {

					flash.Error(fmt.Sprint(err))
					flash.Store(&self.Controller)

					if e := os.Remove(path); e != nil {
						fmt.Println("SettingsHandler清除残余文件出错:", e)
					}

					self.Redirect("/settings/", 302)
					return
				} else {
					f.Close() //手动关闭  不然下面会导致重命名文件出错~

					//所有文件以该加密方式哈希生成文件名  从而实现针对到用户个体的文件权限识别
					filehash, _ := helper.Filehash(helper.Url2local(path), nil)

					fname := helper.Encrypt_hash(filehash+strconv.Itoa(int(uid)), nil)

					newpath = ipath + fname + ext

					if err := os.Rename(helper.Url2local(path), helper.Url2local(newpath)); err != nil {
						fmt.Println("重命名文件出错:", err)
					}

					//文件权限校验 通过说明文件上传转换过程中没发生错误
					//首先读取被操作文件的hash值 和 用户请求中的文件hash值  以及 用户当前id的string类型  进行验证

					if fhashed, _ := helper.Filehash(helper.Url2local(newpath), nil); helper.Validate_hash(fname, fhashed+strconv.Itoa(int(uid))) {

						//收到的头像图片存储都设置ctype为 10 与其他图片类型区分开
						if _, err := model.AddImage(helper.Url2local(newpath), 0, 10, uid); err != nil {
							fmt.Print("model.AddImage:", err)
						}

						usr, _ := model.GetUser(uid)
						if usr.Avatar != "" {
							os.Remove(helper.Url2local(usr.Avatar))
						}
						if usr.AvatarLarge != "" {
							os.Remove(helper.Url2local(usr.AvatarLarge))
						}
						if usr.AvatarMedium != "" {
							os.Remove(helper.Url2local(usr.AvatarMedium))
						}
						if usr.AvatarSmall != "" {
							os.Remove(helper.Url2local(usr.AvatarSmall))
						}
						usr.Avatar = newpath
						usr.AvatarLarge = newpath
						usr.AvatarMedium = newpath
						usr.AvatarSmall = newpath
						model.PutUser(uid, usr)

						//hash, _ := utils.Filehash(output_file)
						//fileInfo, err := os.Stat(output_file)
						//var fsize int64 = 0
						//if err == nil {
						//	fsize = fileInfo.Size() / 1024
						//}

						flash.Notice("成功设置头像为:", handler.Filename)
						flash.Store(&self.Controller)
						self.Redirect("/settings/", 302)
						return
					} else {

						flash.Error("SettingsHandler图片添加水印失败!")
						flash.Store(&self.Controller)

						if e := os.Remove(helper.Url2local(newpath)); e != nil {
							fmt.Println("SettingsHandler清除错误水印遗留文件", newpath, "出错:", e)
						}

						self.Redirect("/settings/", 302)
						return
					}

				}

			}

		} else {

			flash.Error("SettingsHandler获取文件错误3!")
			flash.Store(&self.Controller)

			self.Redirect("/settings/", 302)
			return
		}
	}
}
Example #3
0
func (self *UploaderHandler) Post() {

	flash := beego.NewFlash()
	targetFolder := "/file/"
	self.TplNames = "editor-tinymce-ajax-result.html"
	file, handler, e := self.GetFile("userfile")

	uid := int64(0)
	if self.GetSession("userid") != nil {
		uid = self.GetSession("userid").(int64)
	} else {
		flash.Error("UploaderHandler获取UID错误0!")
		flash.Store(&self.Controller)

		self.Data["result"] = "UploaderHandler获取UID错误0!"
		self.Data["resultcode"] = "failed"
		return
	}

	if e != nil {
		fmt.Println("UploaderHandler获取文件错误1!")
		flash.Error("UploaderHandler获取文件错误1!")
		flash.Store(&self.Controller)

		self.TplNames = "editor-tinymce-ajax-result.html"
		self.Data["result"] = " "
		self.Data["resultcode"] = "failed"
	} else {

		if handler != nil {

			ext := strings.ToLower(path.Ext(handler.Filename))
			filename := helper.MD5(time.Now().String()) + ext

			ipath := targetFolder + time.Now().Format("03/04/")
			//ipath := targetFolder + helper.FixedpathByNumber(2, 2)
			os.MkdirAll("."+ipath, 0644)
			path := ipath + filename
			f, err := os.OpenFile("."+path, os.O_WRONLY|os.O_CREATE, 0644)

			if err != nil {

				fmt.Println("UploaderHandler获取文件错误2!")
				flash.Error("UploaderHandler获取文件错误2!")
				flash.Store(&self.Controller)

				self.TplNames = "editor-tinymce-ajax-result.html"
				self.Data["result"] = " "
				self.Data["resultcode"] = "failed"
			} else {
				io.Copy(f, file)
				defer file.Close()
				defer f.Close()
				input_file := "." + path
				output_file := "." + path
				output_size := "696"
				output_align := "center"
				background := "white"
				newpath := ""
				//所有上传的图片都会被缩略处理
				if err := helper.Thumbnail("resize", input_file, output_file, output_size, output_align, background); err != nil {

					fmt.Println("UploaderHandler生成缩略图出错:", err)
					flash.Error(fmt.Sprint(err))
					flash.Store(&self.Controller)

					if e := os.Remove(helper.Url2local(path)); e != nil {
						fmt.Println("UploaderHandler清除残余文件出错:", e)
					}
					self.TplNames = "editor-tinymce-ajax-result.html"
					self.Data["result"] = err
					self.Data["resultcode"] = "failed"
				} else {
					f.Close() //手动关闭  不然下面会导致重命名文件出错~
					watermark_file := helper.Url2local(helper.GetTheme()) + "/static/mzr/img/watermark.png"

					if e := helper.Watermark(watermark_file, input_file, output_file, "SouthEast"); e == nil {
						//所有文件以该加密方式哈希生成文件名  从而实现针对到用户个体的文件权限识别
						filehash, _ := helper.Filehash(helper.Url2local(path), nil)

						fname := helper.Encrypt_hash(filehash+strconv.Itoa(int(uid)), nil)

						newpath = ipath + fname + ext

						if err := os.Rename(helper.Url2local(path), helper.Url2local(newpath)); err != nil {
							fmt.Println("重命名文件出错:", err)
						}

						//文件权限校验 通过说明文件上传转换过程中没发生错误
						//首先读取被操作文件的hash值 和 用户请求中的文件hash值  以及 用户当前id的string类型  进行验证

						if fhashed, _ := helper.Filehash(helper.Url2local(newpath), nil); helper.Validate_hash(fname, fhashed+strconv.Itoa(int(uid))) {

							//用户上传图片的记录
							//ctype为0表示没上传文件
							//收到的图片存储都设置ctype为 -1  证明用户上传了文件,但尚未正式使用
							//当用户edit话题或new话题,在进行posting的时候,检查image表,如存在同样文件,则顺手修改ctype为1 表示该文件正在使用
							//并修改相关tid uid等等信息进image表 留待以后或许有用~
							if _, err := model.AddImage(helper.Url2local(newpath), 0, -1, uid); err != nil {
								fmt.Print("model.AddImage:", err)
							}

							self.TplNames = "editor-tinymce-ajax-result.html"
							self.Data["result"] = "file_uploaded"
							self.Data["resultcode"] = "ok"
							self.Data["file_name"] = newpath
						} else {

							fmt.Println("UploaderHandler校验图片不正确!")
							flash.Error("UploaderHandler校验图片不正确!")
							flash.Store(&self.Controller)

							self.TplNames = "editor-tinymce-ajax-result.html"
							self.Data["result"] = " "
							self.Data["resultcode"] = "failed"

							if e := os.Remove(helper.Url2local(newpath)); e != nil {
								fmt.Println("UploaderHandler清除错误文件", newpath, "出错:", e)
							}
						}

						//hash, _ := utils.Filehash(output_file)
						//fileInfo, err := os.Stat(output_file)
						//var fsize int64 = 0
						//if err == nil {
						//	fsize = fileInfo.Size() / 1024
						//}
					} else {
						fmt.Println("UploaderHandler 图片添加水印失败!")
						flash.Error("UploaderHandler 图片添加水印失败!")
						flash.Store(&self.Controller)

						self.TplNames = "editor-tinymce-ajax-result.html"
						self.Data["result"] = " "
						self.Data["resultcode"] = "failed"

						if e := os.Remove(helper.Url2local(newpath)); e != nil {
							fmt.Println("UploaderHandler清除错误水印遗留文件", newpath, "出错:", e)
						}
					}

				}

			}

		} else {

			fmt.Println("UploaderHandler获取文件错误3!")
			flash.Error("UploaderHandler获取文件错误3!")
			flash.Store(&self.Controller)

			self.TplNames = "editor-tinymce-ajax-result.html"
			self.Data["result"] = " "
			self.Data["resultcode"] = "failed"
		}
	}

}