Golang Context.RespondWithErrorMessage方法代碼示例

// 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: /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
}

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
}

// DELETE: /cgroup/{id}
func (cr *ClientGroupController) 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 ANON_CG_DELETE is true, use the public user.
	// Otherwise if no auth was provided, throw an error.
	// Otherwise, proceed with deletion of the clientgroup using the user.
	if u == nil {
		if conf.ANON_CG_DELETE == true {
			u = &user.User{Uuid: "public"}
		} else {
			cx.RespondWithErrorMessage(e.UnAuth, http.StatusUnauthorized)
			return
		}
	}

	// Load clientgroup by id
	cg, err := core.LoadClientGroup(id)

	if err != nil {
		if err == mgo.ErrNotFound {
			cx.RespondWithNotFound()
		} else {
			// In theory the db connection could be lost between
			// checking user and load but seems unlikely.
			cx.RespondWithErrorMessage("clientgroup id not found:"+id, http.StatusBadRequest)
		}
		return
	}

	// User must have delete permissions on clientgroup or be clientgroup owner or be an admin or the clientgroup is publicly deletable.
	// The other possibility is that public deletion of clientgroups is enabled and the clientgroup is publicly deletable.
	rights := cg.Acl.Check(u.Uuid)
	public_rights := cg.Acl.Check("public")
	if (u.Uuid != "public" && (cg.Acl.Owner == u.Uuid || rights["delete"] == true || u.Admin == true || public_rights["delete"] == true)) ||
		(u.Uuid == "public" && conf.ANON_CG_DELETE == true && public_rights["delete"] == true) {
		err := core.DeleteClientGroup(id)
		if err != nil {
			cx.RespondWithErrorMessage("Could not delete clientgroup.", http.StatusInternalServerError)
			return
		}
		cx.RespondWithOK()
		return
	}

	cx.RespondWithErrorMessage(e.UnAuth, http.StatusUnauthorized)
	return
}

// GET: /awf/{name}
// get a workflow by name, read-only
func (cr *AwfController) Read(id string, cx *goweb.Context) {
	LogRequest(cx.Request)
	// Load workunit by id
	workflow, err := core.AwfMgr.GetWorkflow(id)
	if err != nil {
		cx.RespondWithErrorMessage(err.Error(), http.StatusBadRequest)
		return
	}
	// Base case respond with workunit in json
	cx.RespondWithData(workflow)
	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
}

// 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
}

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: /client - register a new client
func (cr *ClientController) Create(cx *goweb.Context) {
	// Log Request and check for Auth
	LogRequest(cx.Request)

	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
		}
	}

	// Parse uploaded form
	_, files, err := ParseMultipartForm(cx.Request)
	if err != nil {
		if err.Error() != "request Content-Type isn't multipart/form-data" {
			logger.Error("Error parsing form: " + err.Error())
			cx.RespondWithError(http.StatusBadRequest)
			return
		}
	}

	client, err := core.QMgr.RegisterNewClient(files, cg)
	if err != nil {
		msg := "Error in registering new client:" + err.Error()
		logger.Error(msg)
		cx.RespondWithErrorMessage(msg, http.StatusBadRequest)
		return
	}

	//log event about client registration (CR)
	logger.Event(event.CLIENT_REGISTRATION, "clientid="+client.Id+";name="+client.Name+";host="+client.Host+";group="+client.Group+";instance_id="+client.InstanceId+";instance_type="+client.InstanceType+";domain="+client.Domain)

	cx.RespondWithData(client)
	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: /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
}

// POST: /cgroup/{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
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 len(client.Current_work) > 0 {
				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) {
	LogRequest(cx.Request)
	// Gather query params
	query := &Query{Li: cx.Request.URL.Query()}
	if !query.Has("client") {
		cx.RespondWithErrorMessage("This request type requires the client=clientid parameter.", http.StatusBadRequest)
		return
	}

	// Check auth
	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
		}
	}

	// check that clientgroup auth token matches group of client
	clientid := query.Value("client")
	client, ok := core.QMgr.GetClient(clientid)
	if !ok {
		cx.RespondWithErrorMessage(e.ClientNotFound, http.StatusBadRequest)
		return
	}
	if cg != nil && client.Group != cg.Name {
		cx.RespondWithErrorMessage("Clientgroup name in token does not match that in the client configuration.", http.StatusBadRequest)
		return
	}

	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("computetime") {
			if comptime, err := strconv.Atoi(query.Value("computetime")); err == nil {
				notice.ComputeTime = comptime
			}
		}
		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)
					}
				}
				if _, ok := files["stdout"]; ok {
					core.QMgr.SaveStdLog(id, "stdout", files["stdout"].Path)
				}
				if _, ok := files["stderr"]; ok {
					core.QMgr.SaveStdLog(id, "stderr", files["stderr"].Path)
				}
				if _, ok := files["worknotes"]; ok {
					core.QMgr.SaveStdLog(id, "worknotes", files["worknotes"].Path)
				}
			}
		}
		core.QMgr.NotifyWorkStatus(notice)
	}
	cx.RespondWithData("ok")
	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("privateenv")) && query.Has("client") {
		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
			}
		}
		// check that clientgroup auth token matches group of client
		clientid := query.Value("client")
		client, ok := core.QMgr.GetClient(clientid)
		if !ok {
			cx.RespondWithErrorMessage(e.ClientNotFound, http.StatusBadRequest)
			return
		}
		if cg != nil && client.Group != cg.Name {
			cx.RespondWithErrorMessage("Clientgroup name in token does not match that in the client configuration.", http.StatusBadRequest)
			return
		}

		if query.Has("datatoken") { //a client is requesting data token for this job
			token, err := core.QMgr.FetchDataToken(id, clientid)
			if err != nil {
				cx.RespondWithErrorMessage("error in getting token for job "+id, http.StatusBadRequest)
				return
			}
			//cx.RespondWithData(token)
			RespondTokenInHeader(cx, token)
			return
		}

		if query.Has("privateenv") { //a client is requesting data token for this job
			envs, err := core.QMgr.FetchPrivateEnv(id, clientid)
			if err != nil {
				cx.RespondWithErrorMessage("error in getting token for job "+id, http.StatusBadRequest)
				return
			}
			//cx.RespondWithData(token)
			RespondPrivateEnvInHeader(cx, envs)
			return
		}
	}

	// 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
		}
	}

	jobid, err := core.GetJobIdByWorkId(id)
	if err != nil {
		cx.RespondWithErrorMessage(err.Error(), http.StatusBadRequest)
		return
	}

	job, err := core.LoadJob(jobid)
	if err != nil {
		cx.RespondWithErrorMessage(err.Error(), http.StatusBadRequest)
		return
	}

	// User must have read permissions on job or be job owner or be an admin
	rights := job.Acl.Check(u.Uuid)
	if job.Acl.Owner != u.Uuid && rights["read"] == false && u.Admin == false {
		cx.RespondWithErrorMessage(e.UnAuth, http.StatusUnauthorized)
		return
	}

	if query.Has("report") { //retrieve report: stdout or stderr or worknotes
		reportmsg, err := core.QMgr.GetReportMsg(id, query.Value("report"))
		if err != nil {
			cx.RespondWithErrorMessage(err.Error(), http.StatusBadRequest)
			return
		}
		cx.RespondWithData(reportmsg)
//.........這裏部分代碼省略.........