Golang Context.RespondWithError方法代碼示例

// GET: /client/{id}
func (cr *ClientController) Read(id string, cx *goweb.Context) {
	// Gather query params
	query := &Query{Li: cx.Request.URL.Query()}

	if query.Has("heartbeat") { //handle heartbeat
		hbmsg, err := core.QMgr.ClientHeartBeat(id)
		if err != nil {
			cx.RespondWithErrorMessage(err.Error(), http.StatusBadRequest)
		} else {
			cx.RespondWithData(hbmsg)
		}
		return
	}

	LogRequest(cx.Request) //skip heartbeat in access log

	client, err := core.QMgr.GetClient(id)
	if err != nil {
		if err.Error() == e.ClientNotFound {
			cx.RespondWithErrorMessage(e.ClientNotFound, http.StatusBadRequest)
		} else {
			logger.Error("Error in GET client:" + err.Error())
			cx.RespondWithError(http.StatusBadRequest)
		}
		return
	}
	cx.RespondWithData(client)
}

// PUT: /logger
func (cr *LoggerController) UpdateMany(cx *goweb.Context) {
	LogRequest(cx.Request)

	// Try to authenticate user.
	u, err := request.Authenticate(cx.Request)
	if err != nil && err.Error() != e.NoAuth {
		cx.RespondWithErrorMessage(err.Error(), http.StatusUnauthorized)
		return
	}
	// must be admin user
	if u == nil || u.Admin == false {
		cx.RespondWithErrorMessage(e.NoAuth, http.StatusUnauthorized)
		return
	}

	// Gather query params
	query := &Query{Li: cx.Request.URL.Query()}

	// currently can only reset debug level
	if query.Has("debug") {
		levelStr := query.Value("debug")
		levelInt, err := strconv.Atoi(levelStr)
		if err != nil {
			cx.RespondWithErrorMessage("invalid debug level: "+err.Error(), http.StatusBadRequest)
		}
		conf.DEBUG_LEVEL = levelInt
		logger.Event(event.DEBUG_LEVEL, "level="+levelStr+";user="+u.Username)
		cx.RespondWithData(map[string]int{"debuglevel": conf.DEBUG_LEVEL})
		return
	}

	cx.RespondWithError(http.StatusNotImplemented)
	return
}

// DELETE: /job?suspend, /job?zombie
func (cr *JobController) DeleteMany(cx *goweb.Context) {
	LogRequest(cx.Request)

	// Try to authenticate user.
	u, err := request.Authenticate(cx.Request)
	if err != nil && err.Error() != e.NoAuth {
		cx.RespondWithErrorMessage(err.Error(), http.StatusUnauthorized)
		return
	}

	// If no auth was provided, and anonymous delete is allowed, use the public user
	if u == nil {
		if conf.ANON_DELETE == true {
			u = &user.User{Uuid: "public"}
		} else {
			cx.RespondWithErrorMessage(e.NoAuth, http.StatusUnauthorized)
			return
		}
	}

	// Gather query params
	query := &Query{Li: cx.Request.URL.Query()}
	if query.Has("suspend") {
		num := core.QMgr.DeleteSuspendedJobsByUser(u)
		cx.RespondWithData(fmt.Sprintf("deleted %d suspended jobs", num))
	} else if query.Has("zombie") {
		num := core.QMgr.DeleteZombieJobsByUser(u)
		cx.RespondWithData(fmt.Sprintf("deleted %d zombie jobs", num))
	} else {
		cx.RespondWithError(http.StatusNotImplemented)
	}
	return
}

// PUT: /client/{id} -> status update
func (cr *ClientController) Update(id string, cx *goweb.Context) {
	LogRequest(cx.Request)

	// Gather query params
	query := &Query{Li: cx.Request.URL.Query()}
	if query.Has("subclients") { //update the number of subclients for a proxy
		if count, err := strconv.Atoi(query.Value("subclients")); err != nil {
			cx.RespondWithError(http.StatusNotImplemented)
		} else {
			core.QMgr.UpdateSubClients(id, count)
			cx.RespondWithData("ok")
		}
		return
	}
	if query.Has("suspend") { //resume the suspended client
		if err := core.QMgr.SuspendClient(id); err != nil {
			cx.RespondWithErrorMessage(err.Error(), http.StatusBadRequest)
		} else {
			cx.RespondWithData("client suspended")
		}
		return
	}
	if query.Has("resume") { //resume the suspended client
		if err := core.QMgr.ResumeClient(id); err != nil {
			cx.RespondWithErrorMessage(err.Error(), http.StatusBadRequest)
		} else {
			cx.RespondWithData("client resumed")
		}
		return
	}
	cx.RespondWithError(http.StatusNotImplemented)
}

// PUT: /client
func (cr *ClientController) UpdateMany(cx *goweb.Context) {
	LogRequest(cx.Request)

	// Try to authenticate user.
	u, err := request.Authenticate(cx.Request)
	if err != nil && err.Error() != e.NoAuth {
		cx.RespondWithErrorMessage(err.Error(), http.StatusUnauthorized)
		return
	}

	// If no auth was provided, and anonymous read is allowed, use the public user
	if u == nil {
		if conf.ANON_WRITE == true {
			u = &user.User{Uuid: "public"}
		} else {
			cx.RespondWithErrorMessage(e.NoAuth, http.StatusUnauthorized)
			return
		}
	}

	// Gather query params
	query := &Query{Li: cx.Request.URL.Query()}
	if query.Has("resumeall") { //resume the suspended client
		num := core.QMgr.ResumeSuspendedClientsByUser(u)
		cx.RespondWithData(fmt.Sprintf("%d suspended clients resumed", num))
		return
	}
	if query.Has("suspendall") { //resume the suspended client
		num := core.QMgr.SuspendAllClientsByUser(u)
		cx.RespondWithData(fmt.Sprintf("%d clients suspended", num))
		return
	}
	cx.RespondWithError(http.StatusNotImplemented)
	return
}

func AuthError(err error, cx *goweb.Context) {
	if err.Error() == e.InvalidAuth {
		cx.RespondWithErrorMessage("Invalid authorization header or content", http.StatusBadRequest)
		return
	}
	logger.Error("Error at Auth: " + err.Error())
	cx.RespondWithError(http.StatusInternalServerError)
	return
}

// POST: /job
func (cr *JobController) Create(cx *goweb.Context) {
	// Log Request and check for Auth
	LogRequest(cx.Request)

	// Parse uploaded form
	params, files, err := ParseMultipartForm(cx.Request)

	if err != nil {
		if err.Error() == "request Content-Type isn't multipart/form-data" {
			cx.RespondWithErrorMessage("No job file is submitted", http.StatusBadRequest)
		} else {
			// Some error other than request encoding. Theoretically
			// could be a lost db connection between user lookup and parsing.
			// Blame the user, Its probaby their fault anyway.
			logger.Error("Error parsing form: " + err.Error())
			cx.RespondWithError(http.StatusBadRequest)
		}
		return
	}

	_, has_upload := files["upload"]
	_, has_awf := files["awf"]

	if !has_upload && !has_awf {
		cx.RespondWithErrorMessage("No job script or awf is submitted", http.StatusBadRequest)
		return
	}

	//send job submission request and get back an assigned job number (jid)
	var jid string
	jid, err = core.QMgr.JobRegister()
	if err != nil {
		logger.Error("[email protected]_Create:GetNextJobNum: " + err.Error())
		cx.RespondWithErrorMessage(err.Error(), http.StatusBadRequest)
		return
	}

	var job *core.Job
	job, err = core.CreateJobUpload(params, files, jid)
	if err != nil {
		logger.Error("[email protected]_Create:CreateJobUpload: " + err.Error())
		cx.RespondWithErrorMessage(err.Error(), http.StatusBadRequest)
		return
	}

	if token, err := request.RetrieveToken(cx.Request); err == nil {
		job.SetDataToken(token)
	}

	core.QMgr.EnqueueTasksByJobId(job.Id, job.TaskList())

	//log event about job submission (JB)
	logger.Event(event.JOB_SUBMISSION, "jobid="+job.Id+";jid="+job.Jid+";name="+job.Info.Name+";project="+job.Info.Project)
	cx.RespondWithData(job)
	return
}

// PUT: /job
func (cr *JobController) UpdateMany(cx *goweb.Context) {
	LogRequest(cx.Request)
	// Gather query params
	query := &Query{Li: cx.Request.URL.Query()}
	if query.Has("resumeall") { //resume the suspended job
		num := core.QMgr.ResumeSuspendedJobs()
		cx.RespondWithData(fmt.Sprintf("%d suspended jobs resumed", num))
		return
	}
	cx.RespondWithError(http.StatusNotImplemented)
}

func handleAuthError(err error, cx *goweb.Context) {
	switch err.Error() {
	case e.MongoDocNotFound:
		cx.RespondWithErrorMessage("Invalid username or password", http.StatusBadRequest)
		return
		//	case e.InvalidAuth:
		//		cx.RespondWithErrorMessage("Invalid Authorization header", http.StatusBadRequest)
		//		return
	}
	logger.Error("Error at Auth: " + err.Error())
	cx.RespondWithError(http.StatusInternalServerError)
	return
}

// PUT: /client/{id} -> status update
func (cr *ClientController) Update(id string, cx *goweb.Context) {
	LogRequest(cx.Request)

	// Try to authenticate user.
	u, err := request.Authenticate(cx.Request)
	if err != nil && err.Error() != e.NoAuth {
		cx.RespondWithErrorMessage(err.Error(), http.StatusUnauthorized)
		return
	}

	// If no auth was provided, and anonymous read is allowed, use the public user
	if u == nil {
		if conf.ANON_WRITE == true {
			u = &user.User{Uuid: "public"}
		} else {
			cx.RespondWithErrorMessage(e.NoAuth, http.StatusUnauthorized)
			return
		}
	}

	// Gather query params
	query := &Query{Li: cx.Request.URL.Query()}
	if query.Has("subclients") { //update the number of subclients for a proxy
		if count, err := strconv.Atoi(query.Value("subclients")); err != nil {
			cx.RespondWithError(http.StatusNotImplemented)
		} else {
			core.QMgr.UpdateSubClientsByUser(id, count, u)
			cx.RespondWithData("ok")
		}
		return
	}
	if query.Has("suspend") { //resume the suspended client
		if err := core.QMgr.SuspendClientByUser(id, u); err != nil {
			cx.RespondWithErrorMessage(err.Error(), http.StatusBadRequest)
		} else {
			cx.RespondWithData("client suspended")
		}
		return
	}
	if query.Has("resume") { //resume the suspended client
		if err := core.QMgr.ResumeClientByUser(id, u); err != nil {
			cx.RespondWithErrorMessage(err.Error(), http.StatusBadRequest)
		} else {
			cx.RespondWithData("client resumed")
		}
		return
	}
	cx.RespondWithError(http.StatusNotImplemented)
	return
}

// DELETE: /job?suspend
func (cr *JobController) DeleteMany(cx *goweb.Context) {
	LogRequest(cx.Request)
	// Gather query params
	query := &Query{Li: cx.Request.URL.Query()}
	if query.Has("suspend") {
		num := core.QMgr.DeleteSuspendedJobs()
		cx.RespondWithData(fmt.Sprintf("deleted %d suspended jobs", num))
	} else if query.Has("zombie") {
		num := core.QMgr.DeleteZombieJobs()
		cx.RespondWithData(fmt.Sprintf("deleted %d zombie jobs", num))
	} else {
		cx.RespondWithError(http.StatusNotImplemented)
	}
	return
}

func AdminAuthenticated(cx *goweb.Context) bool {
	user, err := request.Authenticate(cx.Request)
	if err != nil {
		if err.Error() == e.NoAuth || err.Error() == e.UnAuth {
			cx.RespondWithError(http.StatusUnauthorized)
		} else {
			request.AuthError(err, cx)
		}
		return false
	}
	if _, ok := conf.Admin_Users[user.Username]; !ok {
		msg := fmt.Sprintf("user %s has no admin right", user.Username)
		cx.RespondWithErrorMessage(msg, http.StatusBadRequest)
		return false
	}
	return true
}

// POST: /user
// To create a new user make a empty POST to /user with user:password
// Basic Auth encoded in the header. Return new user object.
func (cr *UserController) Create(cx *goweb.Context) {
	// Log Request
	LogRequest(cx.Request)

	if _, ok := cx.Request.Header["Authorization"]; !ok {
		cx.RespondWithError(http.StatusUnauthorized)
		return
	}
	header := cx.Request.Header.Get("Authorization")
	tmpAuthArray := strings.Split(header, " ")

	authValues, err := base64.URLEncoding.DecodeString(tmpAuthArray[1])
	if err != nil {
		err = errors.New("Failed to decode encoded auth settings in http request.")
		cx.RespondWithError(http.StatusBadRequest)
		return
	}

	authValuesArray := strings.Split(string(authValues), ":")
	if conf.ANON_CREATEUSER == false && len(authValuesArray) != 4 {
		if len(authValuesArray) == 2 {
			cx.RespondWithErrorMessage(e.UnAuth, http.StatusUnauthorized)
			return
		} else {
			cx.RespondWithError(http.StatusBadRequest)
			return
		}
	}
	name := authValuesArray[0]
	passwd := authValuesArray[1]
	admin := false
	if len(authValuesArray) == 4 {
		if authValuesArray[2] != fmt.Sprint(conf.SECRET_KEY) {
			cx.RespondWithErrorMessage(e.UnAuth, http.StatusUnauthorized)
			return
		} else if authValuesArray[3] == "true" {
			admin = true
		}
	}

	u, err := user.New(name, passwd, admin)
	if err != nil {
		// Duplicate key check
		if e.MongoDupKeyRegex.MatchString(err.Error()) {
			logger.Error("[email protected]_Create: duplicate key error")
			cx.RespondWithErrorMessage("Username not available", http.StatusBadRequest)
			return
		} else {
			logger.Error("[email protected]_Create: " + err.Error())
			cx.RespondWithError(http.StatusInternalServerError)
			return
		}
	}
	cx.RespondWithData(u)
	return
}

// GET: /logger
func (cr *LoggerController) ReadMany(cx *goweb.Context) {
	LogRequest(cx.Request)

	// Gather query params
	query := &Query{Li: cx.Request.URL.Query()}

	// public logging info
	if query.Has("event") {
		cx.RespondWithData(event.EventDiscription)
		return
	}
	if query.Has("debug") {
		cx.RespondWithData(map[string]int{"debuglevel": conf.DEBUG_LEVEL})
		return
	}

	cx.RespondWithError(http.StatusNotImplemented)
	return
}

// GET: /user
func (cr *UserController) ReadMany(cx *goweb.Context) {
	// Log Request and check for Auth
	LogRequest(cx.Request)
	u, err := request.Authenticate(cx.Request)

	if err != nil {
		if err.Error() == e.NoAuth || err.Error() == e.UnAuth {
			cx.RespondWithError(http.StatusUnauthorized)
			return
		} else {
			logger.Error("[email protected]_Read: " + err.Error())
			cx.RespondWithError(http.StatusInternalServerError)
			return
		}
	}
	if u.Admin {
		users := user.Users{}
		user.AdminGet(&users)
		if len(users) > 0 {
			cx.RespondWithData(users)
			return
		} else {
			cx.RespondWithNotFound()
			return
		}
	} else {
		cx.RespondWithError(http.StatusUnauthorized)
		return
	}
}