Golang Context.RespondWithData方法代碼示例

// POST: /clientgroup/{name}
func (cr *ClientGroupController) CreateWithId(name 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 ANON_CG_WRITE is true, use the public user.
	// Otherwise if no auth was provided or user is not an admin, and ANON_CG_WRITE is false, throw an error.
	// Otherwise, proceed with creation of the clientgroup with the user.
	if u == nil && conf.ANON_CG_WRITE == true {
		u = &user.User{Uuid: "public"}
	} else if u == nil || !u.Admin {
		if conf.ANON_CG_WRITE == false {
			cx.RespondWithErrorMessage(e.UnAuth, http.StatusUnauthorized)
			return
		}
	}

	cg, err := core.CreateClientGroup(name, u)
	if err != nil {
		cx.RespondWithErrorMessage(err.Error(), http.StatusBadRequest)
		return
	}

	cx.RespondWithData(cg)
	return
}

// 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
		cg, err := request.AuthenticateClientGroup(cx.Request)
		if err != nil {
			if err.Error() == e.NoAuth || err.Error() == e.UnAuth || err.Error() == e.InvalidAuth {
				if conf.CLIENT_AUTH_REQ == true {
					cx.RespondWithError(http.StatusUnauthorized)
					return
				}
			} else {
				logger.Error("[email protected]: " + err.Error())
				cx.RespondWithError(http.StatusInternalServerError)
				return
			}
		}

		hbmsg, err := core.QMgr.ClientHeartBeat(id, cg)
		if err != nil {
			cx.RespondWithErrorMessage(err.Error(), http.StatusBadRequest)
		} else {
			cx.RespondWithData(hbmsg)
		}
		return
	}

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

	// 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_READ == true {
			u = &user.User{Uuid: "public"}
		} else {
			cx.RespondWithErrorMessage(e.NoAuth, http.StatusUnauthorized)
			return
		}
	}

	client, err := core.QMgr.GetClientByUser(id, u)
	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)
	return
}

// 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: /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
}

// DELETE: /client/{id}
func (cr *ClientController) Delete(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_DELETE == true {
			u = &user.User{Uuid: "public"}
		} else {
			cx.RespondWithErrorMessage(e.NoAuth, http.StatusUnauthorized)
			return
		}
	}

	if err := core.QMgr.DeleteClientByUser(id, u); err != nil {
		cx.RespondWithErrorMessage(err.Error(), http.StatusBadRequest)
	} else {
		cx.RespondWithData("client deleted")
	}
	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
	}
}

// DELETE: /job/{id}
func (cr *JobController) Delete(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)
	}

	// 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
		}
	}

	if err = core.QMgr.DeleteJobByUser(id, u); err != nil {
		if err == mgo.ErrNotFound {
			cx.RespondWithNotFound()
			return
		} else if err.Error() == e.UnAuth {
			cx.RespondWithErrorMessage(e.UnAuth, http.StatusUnauthorized)
			return
		} else {
			cx.RespondWithErrorMessage("fail to delete job: "+id, http.StatusBadRequest)
			return
		}
	}

	cx.RespondWithData("job deleted: " + id)
	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
}

// GET: /work/{id}
// get a workunit by id, read-only
func (cr *WorkController) Read(id string, cx *goweb.Context) {
	LogRequest(cx.Request)

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

	if query.Has("datatoken") && query.Has("client") { //a client is requesting data token for this job
		//***insert code to authenticate and check ACL***
		clientid := query.Value("client")
		token, err := core.QMgr.FetchDataToken(id, clientid)
		if err != nil {
			cx.RespondWithErrorMessage("error in getting token for job "+id, http.StatusBadRequest)
		}
		cx.RespondWithData(token)
		return
	}

	// Load workunit by id
	workunit, err := core.QMgr.GetWorkById(id)

	if err != nil {
		if err.Error() != e.QueueEmpty {
			logger.Error("[email protected]_Read:core.QMgr.GetWorkById(): " + err.Error())
		}
		cx.RespondWithErrorMessage(err.Error(), http.StatusBadRequest)
		return
	}
	// Base case respond with workunit in json
	cx.RespondWithData(workunit)
	return
}

// GET: /client
func (cr *ClientController) ReadMany(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_READ == true {
			u = &user.User{Uuid: "public"}
		} else {
			cx.RespondWithErrorMessage(e.NoAuth, http.StatusUnauthorized)
			return
		}
	}

	clients := core.QMgr.GetAllClientsByUser(u)

	query := &Query{Li: cx.Request.URL.Query()}
	filtered := []*core.Client{}
	if query.Has("busy") {
		for _, client := range clients {
			if client.Current_work_length() > 0 {
				filtered = append(filtered, client)
			}
		}
	} else if query.Has("group") {
		for _, client := range clients {
			if client.Group == query.Value("group") {
				filtered = append(filtered, client)
			}
		}
	} else if query.Has("status") {
		for _, client := range clients {
			status := client.Get_Status()
			stat := strings.Split(status, "-")
			if status == query.Value("status") {
				filtered = append(filtered, client)
			} else if (len(stat) == 2) && (stat[1] == query.Value("status")) {
				filtered = append(filtered, client)
			}
		}
	} else if query.Has("app") {
		for _, client := range clients {
			for _, app := range client.Apps {
				if app == query.Value("app") {
					filtered = append(filtered, client)
				}
			}
		}
	} else {
		filtered = clients
	}
	cx.RespondWithData(filtered)
	return
}

// PUT: /work/{id} -> status update
func (cr *WorkController) Update(id string, cx *goweb.Context) {
	// Log Request and check for Auth
	LogRequest(cx.Request)
	// Gather query params
	query := &Query{Li: cx.Request.URL.Query()}

	if query.Has("status") && query.Has("client") { //notify execution result: "done" or "fail"
		notice := core.Notice{WorkId: id, Status: query.Value("status"), ClientId: query.Value("client"), Notes: ""}
		if query.Has("report") { // if "report" is specified in query, parse performance statistics or errlog
			if _, files, err := ParseMultipartForm(cx.Request); err == nil {
				if _, ok := files["perf"]; ok {
					core.QMgr.FinalizeWorkPerf(id, files["perf"].Path)
				}
				if _, ok := files["notes"]; ok {
					if notes, err := ioutil.ReadFile(files["notes"].Path); err == nil {
						notice.Notes = string(notes)
					}
				}
			}
		}
		core.QMgr.NotifyWorkStatus(notice)
	}
	cx.RespondWithData("ok")
	return
}

// PUT: /queue
func (cr *QueueController) 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()}

	if query.Has("resume") {
		core.QMgr.ResumeQueue()
		logger.Event(event.QUEUE_RESUME, "user="+u.Username)
		cx.RespondWithData("work queue resumed")
		return
	}
	if query.Has("suspend") {
		core.QMgr.SuspendQueue()
		logger.Event(event.QUEUE_SUSPEND, "user="+u.Username)
		cx.RespondWithData("work queue suspended")
		return
	}

	cx.RespondWithErrorMessage("requested queue operation not supported", http.StatusBadRequest)
	return
}

// 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/{id}
func (cr *JobController) Delete(id string, cx *goweb.Context) {
	LogRequest(cx.Request)
	if err := core.QMgr.DeleteJob(id); err != nil {
		cx.RespondWithErrorMessage("fail to delete job: "+id, http.StatusBadRequest)
		return
	}
	cx.RespondWithData("job deleted: " + id)
	return
}

// 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
}