Golang Context.FormValue方法代码示例

func login(c echo.Context) error {
	username := c.FormValue("username")
	password := c.FormValue("password")

	if username == "jon" && password == "shhh!" {
		// Create token
		token := jwt.New(jwt.SigningMethodHS256)

		// Set claims
		claims := token.Claims.(jwt.MapClaims)
		claims["name"] = "Jon Snow"
		claims["admin"] = true
		claims["exp"] = time.Now().Add(time.Hour * 72).Unix()

		// Generate encoded token and send it as response.
		t, err := token.SignedString([]byte("secret"))
		if err != nil {
			return err
		}
		return c.JSON(http.StatusOK, map[string]string{
			"token": t,
		})
	}

	return echo.ErrUnauthorized
}

func (RuleController) Del(ctx echo.Context) error {
	err := logic.DefaultRule.Delete(ctx, ctx.FormValue("id"))
	if err != nil {
		return fail(ctx, 1, "删除失败")
	}
	return success(ctx, nil)
}

// Modify 修改主题
func (TopicController) Modify(ctx echo.Context) error {
	tid := goutils.MustInt(ctx.FormValue("tid"))
	if tid == 0 {
		return ctx.Redirect(http.StatusSeeOther, "/topics")
	}

	nodes := logic.GenNodes()

	if ctx.Request().Method() != "POST" {
		topics := logic.DefaultTopic.FindByTids([]int{tid})
		if len(topics) == 0 {
			return ctx.Redirect(http.StatusSeeOther, "/topics")
		}

		return render(ctx, "topics/new.html", map[string]interface{}{"nodes": nodes, "topic": topics[0], "activeTopics": "active"})
	}

	me := ctx.Get("user").(*model.Me)
	err := logic.DefaultTopic.Publish(ctx, me, ctx.FormParams())
	if err != nil {
		if err == logic.NotModifyAuthorityErr {
			return fail(ctx, 1, "没有权限操作")
		}

		return fail(ctx, 2, "服务错误，请稍后重试！")
	}
	return success(ctx, nil)
}

func defaultCacheKeyAlgorithm(ctx echo.Context) string {
	filter := map[string]bool{
		"from":      true,
		"sign":      true,
		"nonce":     true,
		"timestamp": true,
	}
	form := ctx.FormParams()
	var keys = make([]string, 0, len(form))
	for key := range form {
		if _, ok := filter[key]; !ok {
			keys = append(keys, key)
		}
	}

	sort.Sort(sort.StringSlice(keys))

	buffer := goutils.NewBuffer()
	for _, k := range keys {
		buffer.Append(k).Append("=").Append(ctx.FormValue(k))
	}

	req := ctx.Request()
	return goutils.Md5(req.Method() + req.URL().Path() + buffer.String())
}

func upload(c echo.Context) error {
	// Read form fields
	name := c.FormValue("name")
	email := c.FormValue("email")

	//-----------
	// Read file
	//-----------

	// Source
	file, err := c.FormFile("file")
	if err != nil {
		return err
	}
	src, err := file.Open()
	if err != nil {
		return err
	}
	defer src.Close()

	// Destination
	dst, err := os.Create(file.Filename)
	if err != nil {
		return err
	}
	defer dst.Close()

	// Copy
	if _, err = io.Copy(dst, src); err != nil {
		return err
	}

	return c.HTML(http.StatusOK, fmt.Sprintf("<p>File %s uploaded successfully with fields name=%s and email=%s.</p>", file.Filename, name, email))
}

// 删除消息
func (MessageController) Delete(ctx echo.Context) error {
	id := ctx.FormValue("id")
	msgtype := ctx.FormValue("msgtype")
	if !logic.DefaultMessage.DeleteMessage(ctx, id, msgtype) {
		return fail(ctx, 1, "对不起，删除失败，请稍候再试！")
	}

	return success(ctx, nil)
}

func parseConds(ctx echo.Context, fields []string) map[string]string {
	conds := make(map[string]string)

	for _, field := range fields {
		if value := ctx.FormValue(field); value != "" {
			conds[field] = value
		}
	}

	return conds
}

// ChangePwd 修改密码
func (AccountController) ChangePwd(ctx echo.Context) error {
	curUser := ctx.Get("user").(*model.Me)

	curPasswd := ctx.FormValue("cur_passwd")
	newPasswd := ctx.FormValue("passwd")
	errMsg, err := logic.DefaultUser.UpdatePasswd(ctx, curUser.Username, curPasswd, newPasswd)
	if err != nil {
		return fail(ctx, 1, errMsg)
	}
	return success(ctx, nil)
}

func EditHandlerPost(c echo.Context) error {
	filepath := c.P(0)
	eolIndex, _ := strconv.Atoi(c.FormValue("eol"))
	content := c.FormValue("content")
	convertedContent, err := eol.LineEnding(eolIndex).Apply(content)
	if err != nil {
		convertedContent = content
		log.Println("Error while converting EOL. Saving without conversion.")
	}
	ioutil.WriteFile(filepath, []byte(convertedContent), 0644)
	c.Set("editorView", NewEditorView(filepath, content))
	return EditHandler(c)
}

// Transfer 转换图片：通过 url 从远程下载图片然后转存到七牛
func (ImageController) Transfer(ctx echo.Context) error {
	origUrl := ctx.FormValue("url")
	if origUrl == "" {
		return fail(ctx, 1, "url不能为空！")
	}

	path, err := logic.DefaultUploader.TransferUrl(ctx, origUrl)
	if err != nil {
		return fail(ctx, 2, "文件上传失败！")
	}

	return success(ctx, map[string]interface{}{"uri": logic.ImageDomain + path})
}

// Create 发布新资源
func (ResourceController) Create(ctx echo.Context) error {
	title := ctx.FormValue("title")
	// 请求新建资源页面
	if title == "" || ctx.Request().Method() != "POST" {
		return render(ctx, "resources/new.html", map[string]interface{}{"activeResources": "active", "categories": logic.AllCategory})
	}

	errMsg := ""
	resForm := ctx.FormValue("form")
	if resForm == model.LinkForm {
		if ctx.FormValue("url") == "" {
			errMsg = "url不能为空"
		}
	} else {
		if ctx.FormValue("content") == "" {
			errMsg = "内容不能为空"
		}
	}
	if errMsg != "" {
		return fail(ctx, 1, errMsg)
	}

	me := ctx.Get("user").(*model.Me)
	err := logic.DefaultResource.Publish(ctx, me, ctx.FormParams())
	if err != nil {
		return fail(ctx, 2, "内部服务错误，请稍候再试！")
	}

	return success(ctx, nil)
}

// New 新建规则
func (RuleController) New(ctx echo.Context) error {
	var data = make(map[string]interface{})

	if ctx.FormValue("submit") == "1" {
		user := ctx.Get("user").(*model.Me)

		errMsg, err := logic.DefaultRule.Save(ctx, ctx.FormParams(), user.Username)
		if err != nil {
			return fail(ctx, 1, errMsg)
		}
		return success(ctx, nil)
	}

	return render(ctx, "rule/new.html", data)
}

// Create 创建wiki页
func (WikiController) Create(ctx echo.Context) error {
	title := ctx.FormValue("title")
	// 请求新建 wiki 页面
	if title == "" || ctx.Request().Method() != "POST" {
		return render(ctx, "wiki/new.html", map[string]interface{}{"activeWiki": "active"})
	}

	me := ctx.Get("user").(*model.Me)
	err := logic.DefaultWiki.Create(ctx, me, ctx.FormParams())
	if err != nil {
		return fail(ctx, 1, "内部服务错误")
	}

	return success(ctx, nil)
}

// Create 新建项目
func (ProjectController) Create(ctx echo.Context) error {
	name := ctx.FormValue("name")
	// 请求新建项目页面
	if name == "" || ctx.Request().Method() != "POST" {
		project := &model.OpenProject{}
		return render(ctx, "projects/new.html", map[string]interface{}{"project": project, "activeProjects": "active"})
	}

	user := ctx.Get("user").(*model.Me)
	err := logic.DefaultProject.Publish(ctx, user, ctx.FormParams())
	if err != nil {
		return fail(ctx, 1, "内部服务错误！")
	}
	return success(ctx, nil)
}

// ChangeAvatar 更换头像
func (AccountController) ChangeAvatar(ctx echo.Context) error {
	objLog := getLogger(ctx)

	curUser := ctx.Get("user").(*model.Me)

	// avatar 为空时，表示使用 gravater 头像
	avatar := ctx.FormValue("avatar")
	err := logic.DefaultUser.ChangeAvatar(ctx, curUser.Uid, avatar)
	if err != nil {
		objLog.Errorln("account controller change avatar error:", err)

		return fail(ctx, 2, "更换头像失败")
	}

	return success(ctx, nil)
}