Golang util.RetResult函數代碼示例

// DecompressHandler handles request of decompressing zip/tar.gz.
func DecompressHandler(w http.ResponseWriter, r *http.Request) {
	result := util.NewResult()
	defer util.RetResult(w, r, result)

	var args map[string]interface{}
	if err := json.NewDecoder(r.Body).Decode(&args); err != nil {
		logger.Error(err)
		result.Succ = false

		return
	}

	path := args["path"].(string)
	//	base := filepath.Base(path)
	dir := filepath.Dir(path)

	if !util.File.IsExist(path) {
		result.Succ = false
		result.Msg = "Can't find file [" + path + "] to descompress"

		return
	}

	err := util.Zip.Unzip(path, dir)
	if nil != err {
		logger.Error(err)
		result.Succ = false

		return
	}

}

// LoginHandler handles request of user login.
func LoginHandler(w http.ResponseWriter, r *http.Request) {
	if "GET" == r.Method {
		// show the login page

		model := map[string]interface{}{"conf": conf.Wide, "i18n": i18n.GetAll(conf.Wide.Locale),
			"locale": conf.Wide.Locale, "ver": conf.WideVersion, "year": time.Now().Year()}

		t, err := template.ParseFiles("views/login.html")

		if nil != err {
			logger.Error(err)
			http.Error(w, err.Error(), 500)

			return
		}

		t.Execute(w, model)

		return
	}

	// non-GET request as login request
	result := util.NewResult()
	defer util.RetResult(w, r, result)

	args := struct {
		Username string
		Password string
	}{}

	args.Username = r.FormValue("username")
	args.Password = r.FormValue("password")

	result.Succ = false
	for _, user := range conf.Users {
		if user.Name == args.Username && user.Password == conf.Salt(args.Password, user.Salt) {
			result.Succ = true

			break
		}
	}

	if !result.Succ {
		return
	}

	// create a HTTP session
	httpSession, _ := HTTPSession.Get(r, "wide-session")
	httpSession.Values["username"] = args.Username
	httpSession.Values["id"] = strconv.Itoa(rand.Int())
	httpSession.Options.MaxAge = conf.Wide.HTTPSessionMaxAge
	if "" != conf.Wide.Context {
		httpSession.Options.Path = conf.Wide.Context
	}
	httpSession.Save(r, w)

	logger.Debugf("Created a HTTP session [%s] for user [%s]", httpSession.Values["id"].(string), args.Username)
}

// UploadHandler handles request of file upload.
func UploadHandler(w http.ResponseWriter, r *http.Request) {
	result := util.NewResult()
	defer util.RetResult(w, r, result)

	q := r.URL.Query()
	dir := q["path"][0]

	result.Data = handleUploads(r, dir)
}

// LogoutHandler handles request of user logout (exit).
func LogoutHandler(w http.ResponseWriter, r *http.Request) {
	result := util.NewResult()
	defer util.RetResult(w, r, result)

	httpSession, _ := HTTPSession.Get(r, "wide-session")

	httpSession.Options.MaxAge = -1
	httpSession.Save(r, w)
}

// SaveFileHandler handles request of saving file.
func SaveFileHandler(w http.ResponseWriter, r *http.Request) {
	httpSession, _ := session.HTTPSession.Get(r, "wide-session")
	if httpSession.IsNew {
		http.Error(w, "Forbidden", http.StatusForbidden)

		return
	}
	username := httpSession.Values["username"].(string)

	result := util.NewResult()
	defer util.RetResult(w, r, result)

	var args map[string]interface{}

	if err := json.NewDecoder(r.Body).Decode(&args); err != nil {
		logger.Error(err)
		result.Succ = false

		return
	}

	filePath := args["file"].(string)
	sid := args["sid"].(string)

	if util.Go.IsAPI(filePath) || !session.CanAccess(username, filePath) {
		http.Error(w, "Forbidden", http.StatusForbidden)

		return
	}

	fout, err := os.Create(filePath)

	if nil != err {
		logger.Error(err)
		result.Succ = false

		return
	}

	code := args["code"].(string)

	fout.WriteString(code)

	if err := fout.Close(); nil != err {
		logger.Error(err)
		result.Succ = false

		wSession := session.WideSessions.Get(sid)
		wSession.EventQueue.Queue <- &event.Event{Code: event.EvtCodeServerInternalError, Sid: sid,
			Data: "can't save file " + filePath}

		return
	}
}

// FindHandler handles request of find files under the specified directory with the specified filename pattern.
func FindHandler(w http.ResponseWriter, r *http.Request) {
	httpSession, _ := session.HTTPSession.Get(r, "wide-session")
	if httpSession.IsNew {
		http.Error(w, "Forbidden", http.StatusForbidden)

		return
	}
	username := httpSession.Values["username"].(string)

	result := util.NewResult()
	defer util.RetResult(w, r, result)

	var args map[string]interface{}
	if err := json.NewDecoder(r.Body).Decode(&args); err != nil {
		logger.Error(err)
		result.Succ = false

		return
	}

	path := args["path"].(string) // path of selected file in file tree
	if !util.Go.IsAPI(path) && !session.CanAccess(username, path) {
		http.Error(w, "Forbidden", http.StatusForbidden)

		return
	}

	name := args["name"].(string)

	userWorkspace := conf.GetUserWorkspace(username)
	workspaces := filepath.SplitList(userWorkspace)

	if "" != path && !util.File.IsDir(path) {
		path = filepath.Dir(path)
	}

	founds := foundPaths{}

	for _, workspace := range workspaces {
		rs := find(workspace+conf.PathSeparator+"src", name, []*string{})

		for _, r := range rs {
			substr := util.Str.LCS(path, *r)

			founds = append(founds, &foundPath{Path: filepath.ToSlash(*r), score: len(substr)})
		}
	}

	sort.Sort(founds)

	result.Data = founds
}

// RenameFileHandler handles request of renaming file or directory.
func RenameFileHandler(w http.ResponseWriter, r *http.Request) {
	httpSession, _ := session.HTTPSession.Get(r, "wide-session")
	if httpSession.IsNew {
		http.Error(w, "Forbidden", http.StatusForbidden)

		return
	}
	username := httpSession.Values["username"].(string)

	result := util.NewResult()
	defer util.RetResult(w, r, result)

	var args map[string]interface{}

	if err := json.NewDecoder(r.Body).Decode(&args); err != nil {
		logger.Error(err)
		result.Succ = false

		return
	}

	oldPath := args["oldPath"].(string)
	if util.Go.IsAPI(oldPath) ||
		!session.CanAccess(username, oldPath) {
		http.Error(w, "Forbidden", http.StatusForbidden)

		return
	}

	newPath := args["newPath"].(string)
	if util.Go.IsAPI(newPath) || !session.CanAccess(username, newPath) {
		http.Error(w, "Forbidden", http.StatusForbidden)

		return
	}

	sid := args["sid"].(string)

	wSession := session.WideSessions.Get(sid)

	if !renameFile(oldPath, newPath) {
		result.Succ = false

		wSession.EventQueue.Queue <- &event.Event{Code: event.EvtCodeServerInternalError, Sid: sid,
			Data: "can't rename file " + oldPath}

		return
	}

	logger.Debugf("Renamed a file [%s] to [%s] by user [%s]", oldPath, newPath, wSession.Username)
}

// NewFileHandler handles request of creating file or directory.
func NewFileHandler(w http.ResponseWriter, r *http.Request) {
	httpSession, _ := session.HTTPSession.Get(r, "wide-session")
	if httpSession.IsNew {
		http.Error(w, "Forbidden", http.StatusForbidden)

		return
	}
	username := httpSession.Values["username"].(string)

	result := util.NewResult()
	defer util.RetResult(w, r, result)

	var args map[string]interface{}

	if err := json.NewDecoder(r.Body).Decode(&args); err != nil {
		logger.Error(err)
		result.Succ = false

		return
	}

	path := args["path"].(string)

	if util.Go.IsAPI(path) || !session.CanAccess(username, path) {
		http.Error(w, "Forbidden", http.StatusForbidden)

		return
	}

	fileType := args["fileType"].(string)
	sid := args["sid"].(string)

	wSession := session.WideSessions.Get(sid)

	if !createFile(path, fileType) {
		result.Succ = false

		wSession.EventQueue.Queue <- &event.Event{Code: event.EvtCodeServerInternalError, Sid: sid,
			Data: "can't create file " + path}

		return
	}

	if "f" == fileType {
		logger.Debugf("Created a file [%s] by user [%s]", path, wSession.Username)
	} else {
		logger.Debugf("Created a dir [%s] by user [%s]", path, wSession.Username)
	}

}

// CreateZipHandler handles request of creating zip.
func CreateZipHandler(w http.ResponseWriter, r *http.Request) {
	data := util.NewResult()
	defer util.RetResult(w, r, data)

	var args map[string]interface{}
	if err := json.NewDecoder(r.Body).Decode(&args); err != nil {
		logger.Error(err)
		data.Succ = false

		return
	}

	path := args["path"].(string)
	var name string

	base := filepath.Base(path)

	if nil != args["name"] {
		name = args["name"].(string)
	} else {
		name = base
	}

	dir := filepath.Dir(path)

	if !util.File.IsExist(path) {
		data.Succ = false
		data.Msg = "Can't find file [" + path + "]"

		return
	}

	zipPath := filepath.Join(dir, name)
	zipFile, err := util.Zip.Create(zipPath + ".zip")
	if nil != err {
		logger.Error(err)
		data.Succ = false

		return
	}
	defer zipFile.Close()

	if util.File.IsDir(path) {
		zipFile.AddDirectory(base, path)
	} else {
		zipFile.AddEntry(base, path)
	}

	data.Data = zipPath
}

// SearchTextHandler handles request of searching files under the specified directory with the specified keyword.
func SearchTextHandler(w http.ResponseWriter, r *http.Request) {
	httpSession, _ := session.HTTPSession.Get(r, "wide-session")
	if httpSession.IsNew {
		http.Error(w, "Forbidden", http.StatusForbidden)

		return
	}

	result := util.NewResult()
	defer util.RetResult(w, r, result)

	var args map[string]interface{}

	if err := json.NewDecoder(r.Body).Decode(&args); err != nil {
		logger.Error(err)
		result.Succ = false

		return
	}

	sid := args["sid"].(string)
	wSession := session.WideSessions.Get(sid)
	if nil == wSession {
		result.Succ = false

		return
	}

	// XXX: just one directory

	dir := args["dir"].(string)
	if "" == dir {
		userWorkspace := conf.GetUserWorkspace(wSession.Username)
		workspaces := filepath.SplitList(userWorkspace)
		dir = workspaces[0]
	}

	extension := args["extension"].(string)
	text := args["text"].(string)

	founds := []*Snippet{}
	if util.File.IsDir(dir) {
		founds = search(dir, extension, text, []*Snippet{})
	} else {
		founds = searchInFile(dir, text)
	}

	result.Data = founds
}

// BuildHandler handles request of Playground building.
func BuildHandler(w http.ResponseWriter, r *http.Request) {
	result := util.NewResult()
	defer util.RetResult(w, r, result)

	httpSession, _ := session.HTTPSession.Get(r, "wide-session")
	if httpSession.IsNew {
		http.Error(w, "Forbidden", http.StatusForbidden)

		return
	}

	var args map[string]interface{}
	if err := json.NewDecoder(r.Body).Decode(&args); err != nil {
		logger.Error(err)
		result.Succ = false

		return
	}

	fileName := args["fileName"].(string)
	filePath := filepath.Clean(conf.Wide.Playground + "/" + fileName)

	suffix := ""
	if util.OS.IsWindows() {
		suffix = ".exe"
	}

	data := map[string]interface{}{}

	executable := filepath.Clean(conf.Wide.Playground + "/" + strings.Replace(fileName, ".go", suffix, -1))

	cmd := exec.Command("go", "build", "-o", executable, filePath)
	out, err := cmd.CombinedOutput()

	data["output"] = template.HTML(string(out))

	if nil != err {
		result.Succ = false

		return
	}

	data["executable"] = executable

	result.Data = data
}

// ShortURLHandler handles request of short URL.
func ShortURLHandler(w http.ResponseWriter, r *http.Request) {
	result := util.NewResult()
	defer util.RetResult(w, r, result)

	session, _ := session.HTTPSession.Get(r, "wide-session")
	if session.IsNew {
		http.Error(w, "Forbidden", http.StatusForbidden)

		return
	}

	var args map[string]interface{}
	if err := json.NewDecoder(r.Body).Decode(&args); err != nil {
		logger.Error(err)
		result.Succ = false

		return
	}

	url := args["url"].(string)

	resp, _ := http.Post("http://dwz.cn/create.php", "application/x-www-form-urlencoded",
		strings.NewReader("url="+url))

	var response map[string]interface{}
	if err := json.NewDecoder(resp.Body).Decode(&response); err != nil {
		logger.Error(err)
		result.Succ = false

		return
	}

	shortURL := url
	if 0 == response["status"].(float64) {
		shortURL = response["tinyurl"].(string)
	}

	result.Data = shortURL
}

// SaveContentHandler handles request of session content string.
func SaveContentHandler(w http.ResponseWriter, r *http.Request) {
	result := util.NewResult()
	defer util.RetResult(w, r, result)

	args := struct {
		Sid string
		*conf.LatestSessionContent
	}{}

	if err := json.NewDecoder(r.Body).Decode(&args); err != nil {
		logger.Error(err)
		result.Succ = false

		return
	}

	wSession := WideSessions.Get(args.Sid)
	if nil == wSession {
		result.Succ = false

		return
	}

	wSession.Content = args.LatestSessionContent

	for _, user := range conf.Users {
		if user.Name == wSession.Username {
			// update the variable in-memory, session.FixedTimeSave() function will persist it periodically
			user.LatestSessionContent = wSession.Content

			user.Lived = time.Now().UnixNano()

			wSession.Refresh()

			return
		}
	}
}

// StopHandler handles request of stoping a running process.
func StopHandler(w http.ResponseWriter, r *http.Request) {
	result := util.NewResult()
	defer util.RetResult(w, r, result)

	var args map[string]interface{}
	if err := json.NewDecoder(r.Body).Decode(&args); err != nil {
		logger.Error(err)
		result.Succ = false

		return
	}

	sid := args["sid"].(string)
	pid := int(args["pid"].(float64))

	wSession := session.WideSessions.Get(sid)
	if nil == wSession {
		result.Succ = false

		return
	}

	output.Processes.Kill(wSession, pid)
}

// RunHandler handles request of executing a binary file.
func RunHandler(w http.ResponseWriter, r *http.Request) {
	result := util.NewResult()
	defer util.RetResult(w, r, result)

	var args map[string]interface{}

	if err := json.NewDecoder(r.Body).Decode(&args); err != nil {
		logger.Error(err)
		result.Succ = false
	}

	sid := args["sid"].(string)
	wSession := session.WideSessions.Get(sid)
	if nil == wSession {
		result.Succ = false
	}

	filePath := args["executable"].(string)

	cmd := exec.Command(filePath)

	if conf.Docker {
		output.SetNamespace(cmd)
	}

	stdout, err := cmd.StdoutPipe()
	if nil != err {
		logger.Error(err)
		result.Succ = false
	}

	stderr, err := cmd.StderrPipe()
	if nil != err {
		logger.Error(err)
		result.Succ = false
	}

	outReader := bufio.NewReader(stdout)
	errReader := bufio.NewReader(stderr)

	if err := cmd.Start(); nil != err {
		logger.Error(err)
		result.Succ = false
	}

	wsChannel := session.PlaygroundWS[sid]

	channelRet := map[string]interface{}{}

	if !result.Succ {
		if nil != wsChannel {
			channelRet["cmd"] = "run-done"
			channelRet["output"] = ""

			err := wsChannel.WriteJSON(&channelRet)
			if nil != err {
				logger.Warn(err)
				return
			}

			wsChannel.Refresh()
		}

		return
	}

	channelRet["pid"] = cmd.Process.Pid

	// add the process to user's process set
	output.Processes.Add(wSession, cmd.Process)

	go func(runningId int) {
		defer util.Recover()
		defer cmd.Wait()

		logger.Debugf("User [%s, %s] is running [id=%d, file=%s]", wSession.Username, sid, runningId, filePath)

		// push once for front-end to get the 'run' state and pid
		if nil != wsChannel {
			channelRet["cmd"] = "run"
			channelRet["output"] = ""
			err := wsChannel.WriteJSON(&channelRet)
			if nil != err {
				logger.Warn(err)
				return
			}

			wsChannel.Refresh()
		}

		go func() {
			defer util.Recover()

			buf := outputBuf{}

			for {
				wsChannel := session.PlaygroundWS[sid]
				if nil == wsChannel {
					break
//.........這裏部分代碼省略.........