Golang Context.JsonApiErr方法代碼示例

func CreateDashboardSnapshot(c *middleware.Context, cmd m.CreateDashboardSnapshotCommand) {
	if cmd.External {
		// external snapshot ref requires key and delete key
		if cmd.Key == "" || cmd.DeleteKey == "" {
			c.JsonApiErr(400, "Missing key and delete key for external snapshot", nil)
			return
		}

		cmd.OrgId = -1
		cmd.UserId = -1
		metrics.M_Api_Dashboard_Snapshot_External.Inc(1)
	} else {
		cmd.Key = util.GetRandomString(32)
		cmd.DeleteKey = util.GetRandomString(32)
		cmd.OrgId = c.OrgId
		cmd.UserId = c.UserId
		metrics.M_Api_Dashboard_Snapshot_Create.Inc(1)
	}

	if err := bus.Dispatch(&cmd); err != nil {
		c.JsonApiErr(500, "Failed to create snaphost", err)
		return
	}

	c.JSON(200, util.DynMap{
		"key":       cmd.Key,
		"deleteKey": cmd.DeleteKey,
		"url":       setting.ToAbsUrl("dashboard/snapshot/" + cmd.Key),
		"deleteUrl": setting.ToAbsUrl("api/snapshots-delete/" + cmd.DeleteKey),
	})
}

func GraphiteProxy(c *middleware.Context) {
	proxyPath := c.Params("*")
	target, _ := url.Parse(setting.GraphiteUrl)

	// check if this is a special raintank_db requests
	if proxyPath == "metrics/find" {
		query := c.Query("query")
		if strings.HasPrefix(query, "raintank_db") {
			response, err := executeRaintankDbQuery(query, c.OrgId)
			if err != nil {
				c.JsonApiErr(500, "Failed to execute raintank_db query", err)
				return
			}
			c.JSON(200, response)
			return
		}
	}

	director := func(req *http.Request) {
		req.URL.Scheme = target.Scheme
		req.URL.Host = target.Host
		req.Header.Add("X-Org-Id", strconv.FormatInt(c.OrgId, 10))
		req.URL.Path = util.JoinUrlFragments(target.Path, proxyPath)
	}

	proxy := &httputil.ReverseProxy{Director: director}

	proxy.ServeHTTP(c.RW(), c.Req.Request)
}

func LoginPost(c *middleware.Context, cmd dtos.LoginCommand) {
	userQuery := m.GetUserByLoginQuery{LoginOrEmail: cmd.User}
	err := bus.Dispatch(&userQuery)

	if err != nil {
		c.JsonApiErr(401, "Invalid username or password", err)
		return
	}

	user := userQuery.Result

	passwordHashed := util.EncodePassword(cmd.Password, user.Salt)
	if passwordHashed != user.Password {
		c.JsonApiErr(401, "Invalid username or password", err)
		return
	}

	loginUserWithUser(user, c)

	result := map[string]interface{}{
		"message": "Logged in",
	}

	if redirectTo, _ := url.QueryUnescape(c.GetCookie("redirect_to")); len(redirectTo) > 0 {
		result["redirectUrl"] = redirectTo
		c.SetCookie("redirect_to", "", -1, setting.AppSubUrl+"/")
	}

	metrics.M_Api_Login_Post.Inc(1)

	c.JSON(200, result)
}

func handleListMetrics(req *cwRequest, c *middleware.Context) {
	creds := credentials.NewChainCredentials(
		[]credentials.Provider{
			&credentials.EnvProvider{},
			&credentials.SharedCredentialsProvider{Filename: "", Profile: req.DataSource.Database},
			&ec2rolecreds.EC2RoleProvider{ExpiryWindow: 5 * time.Minute},
		})
	svc := cloudwatch.New(&aws.Config{
		Region:      aws.String(req.Region),
		Credentials: creds,
	})

	reqParam := &struct {
		Parameters struct {
			Namespace  string                        `json:"namespace"`
			MetricName string                        `json:"metricName"`
			Dimensions []*cloudwatch.DimensionFilter `json:"dimensions"`
		} `json:"parameters"`
	}{}
	json.Unmarshal(req.Body, reqParam)

	params := &cloudwatch.ListMetricsInput{
		Namespace:  aws.String(reqParam.Parameters.Namespace),
		MetricName: aws.String(reqParam.Parameters.MetricName),
		Dimensions: reqParam.Parameters.Dimensions,
	}

	resp, err := svc.ListMetrics(params)
	if err != nil {
		c.JsonApiErr(500, "Unable to call AWS API", err)
		return
	}

	c.JSON(200, resp)
}

func GetDataSourceById(c *middleware.Context) {
	query := m.GetDataSourceByIdQuery{
		Id:    c.ParamsInt64(":id"),
		OrgId: c.OrgId,
	}

	if err := bus.Dispatch(&query); err != nil {
		c.JsonApiErr(500, "Failed to query datasources", err)
		return
	}

	ds := query.Result

	c.JSON(200, &dtos.DataSource{
		Id:                ds.Id,
		OrgId:             ds.OrgId,
		Name:              ds.Name,
		Url:               ds.Url,
		Type:              ds.Type,
		Access:            ds.Access,
		Password:          ds.Password,
		Database:          ds.Database,
		User:              ds.User,
		BasicAuth:         ds.BasicAuth,
		BasicAuthUser:     ds.BasicAuthUser,
		BasicAuthPassword: ds.BasicAuthPassword,
		IsDefault:         ds.IsDefault,
		JsonData:          ds.JsonData,
	})
}

//ProxyDataSourceRequest TODO need to cache datasources
func ProxyDataSourceRequest(c *middleware.Context) {
	id := c.ParamsInt64(":id")
	query := m.GetDataSourceByIdQuery{Id: id, OrgId: c.OrgId}

	if err := bus.Dispatch(&query); err != nil {
		c.JsonApiErr(500, "Unable to load datasource meta data", err)
		return
	}

	ds := query.Result
	targetUrl, _ := url.Parse(ds.Url)
	if len(setting.DataProxyWhiteList) > 0 {
		if _, exists := setting.DataProxyWhiteList[targetUrl.Host]; !exists {
			c.JsonApiErr(403, "Data proxy hostname and ip are not included in whitelist", nil)
			return
		}
	}

	if query.Result.Type == m.DS_CLOUDWATCH {
		cloudwatch.HandleRequest(c)
	} else {
		proxyPath := c.Params("*")
		proxy := NewReverseProxy(&ds, proxyPath, targetUrl)
		proxy.Transport = dataProxyTransport
		proxy.ServeHTTP(c.RW(), c.Req.Request)
	}
}

func PostDashboard(c *middleware.Context, cmd m.SaveDashboardCommand) {
	cmd.OrgId = c.OrgId

	err := bus.Dispatch(&cmd)
	if err != nil {
		if err == m.ErrDashboardWithSameNameExists {
			c.JSON(412, util.DynMap{"status": "name-exists", "message": err.Error()})
			return
		}
		if err == m.ErrDashboardVersionMismatch {
			c.JSON(412, util.DynMap{"status": "version-mismatch", "message": err.Error()})
			return
		}
		if err == m.ErrDashboardNotFound {
			c.JSON(404, util.DynMap{"status": "not-found", "message": err.Error()})
			return
		}
		c.JsonApiErr(500, "Failed to save dashboard", err)
		return
	}

	metrics.M_Api_Dashboard_Post.Inc(1)

	c.JSON(200, util.DynMap{"status": "success", "slug": cmd.Result.Slug, "version": cmd.Result.Version})
}

func handleGetMetrics(req *cwRequest, c *middleware.Context) {
	reqParam := &struct {
		Parameters struct {
			Namespace string `json:"namespace"`
		} `json:"parameters"`
	}{}

	json.Unmarshal(req.Body, reqParam)

	var namespaceMetrics []string
	if !isCustomMetrics(reqParam.Parameters.Namespace) {
		var exists bool
		if namespaceMetrics, exists = metricsMap[reqParam.Parameters.Namespace]; !exists {
			c.JsonApiErr(404, "Unable to find namespace "+reqParam.Parameters.Namespace, nil)
			return
		}
	} else {
		var err error
		cwData := req.GetDatasourceInfo()
		cwData.Namespace = reqParam.Parameters.Namespace

		if namespaceMetrics, err = getMetricsForCustomMetrics(cwData, getAllMetrics); err != nil {
			c.JsonApiErr(500, "Unable to call AWS API", err)
			return
		}
	}
	sort.Sort(sort.StringSlice(namespaceMetrics))

	result := []interface{}{}
	for _, name := range namespaceMetrics {
		result = append(result, util.DynMap{"text": name, "value": name})
	}

	c.JSON(200, result)
}

func handleListMetrics(req *cwRequest, c *middleware.Context) {
	cfg := getAwsConfig(req)
	svc := cloudwatch.New(session.New(cfg), cfg)

	reqParam := &struct {
		Parameters struct {
			Namespace  string                        `json:"namespace"`
			MetricName string                        `json:"metricName"`
			Dimensions []*cloudwatch.DimensionFilter `json:"dimensions"`
		} `json:"parameters"`
	}{}
	json.Unmarshal(req.Body, reqParam)

	params := &cloudwatch.ListMetricsInput{
		Namespace:  aws.String(reqParam.Parameters.Namespace),
		MetricName: aws.String(reqParam.Parameters.MetricName),
		Dimensions: reqParam.Parameters.Dimensions,
	}

	var resp cloudwatch.ListMetricsOutput
	err := svc.ListMetricsPages(params,
		func(page *cloudwatch.ListMetricsOutput, lastPage bool) bool {
			metrics, _ := awsutil.ValuesAtPath(page, "Metrics")
			for _, metric := range metrics {
				resp.Metrics = append(resp.Metrics, metric.(*cloudwatch.Metric))
			}
			return !lastPage
		})
	if err != nil {
		c.JsonApiErr(500, "Unable to call AWS API", err)
		return
	}

	c.JSON(200, resp)
}

func handleDescribeAlarmHistory(req *cwRequest, c *middleware.Context) {
	cfg := &aws.Config{
		Region:      aws.String(req.Region),
		Credentials: getCredentials(req.DataSource.Database),
	}

	svc := cloudwatch.New(session.New(cfg), cfg)

	reqParam := &struct {
		Parameters struct {
			AlarmName       string `json:"alarmName"`
			HistoryItemType string `json:"historyItemType"`
			StartDate       int64  `json:"startDate"`
			EndDate         int64  `json:"endDate"`
		} `json:"parameters"`
	}{}
	json.Unmarshal(req.Body, reqParam)

	params := &cloudwatch.DescribeAlarmHistoryInput{
		AlarmName: aws.String(reqParam.Parameters.AlarmName),
		StartDate: aws.Time(time.Unix(reqParam.Parameters.StartDate, 0)),
		EndDate:   aws.Time(time.Unix(reqParam.Parameters.EndDate, 0)),
	}
	if reqParam.Parameters.HistoryItemType != "" {
		params.HistoryItemType = aws.String(reqParam.Parameters.HistoryItemType)
	}

	resp, err := svc.DescribeAlarmHistory(params)
	if err != nil {
		c.JsonApiErr(500, "Unable to call AWS API", err)
		return
	}

	c.JSON(200, resp)
}

func handleDescribeAlarmsForMetric(req *cwRequest, c *middleware.Context) {
	cfg := getAwsConfig(req)
	svc := cloudwatch.New(session.New(cfg), cfg)

	reqParam := &struct {
		Parameters struct {
			Namespace  string                  `json:"namespace"`
			MetricName string                  `json:"metricName"`
			Dimensions []*cloudwatch.Dimension `json:"dimensions"`
			Statistic  string                  `json:"statistic"`
			Period     int64                   `json:"period"`
		} `json:"parameters"`
	}{}
	json.Unmarshal(req.Body, reqParam)

	params := &cloudwatch.DescribeAlarmsForMetricInput{
		Namespace:  aws.String(reqParam.Parameters.Namespace),
		MetricName: aws.String(reqParam.Parameters.MetricName),
		Period:     aws.Int64(reqParam.Parameters.Period),
	}
	if len(reqParam.Parameters.Dimensions) != 0 {
		params.Dimensions = reqParam.Parameters.Dimensions
	}
	if reqParam.Parameters.Statistic != "" {
		params.Statistic = aws.String(reqParam.Parameters.Statistic)
	}

	resp, err := svc.DescribeAlarmsForMetric(params)
	if err != nil {
		c.JsonApiErr(500, "Unable to call AWS API", err)
		return
	}

	c.JSON(200, resp)
}

func ValidateOrgPlaylist(c *middleware.Context) {
	id := c.ParamsInt64(":id")
	query := m.GetPlaylistByIdQuery{Id: id}
	err := bus.Dispatch(&query)

	if err != nil {
		c.JsonApiErr(404, "Playlist not found", err)
		return
	}

	if query.Result.OrgId == 0 {
		c.JsonApiErr(404, "Playlist not found", err)
		return
	}

	if query.Result.OrgId != c.OrgId {
		c.JsonApiErr(403, "You are not allowed to edit/view playlist", nil)
		return
	}

	items, itemsErr := LoadPlaylistItemDTOs(id)

	if itemsErr != nil {
		c.JsonApiErr(404, "Playlist items not found", err)
		return
	}

	if len(items) == 0 {
		c.JsonApiErr(404, "Playlist is empty", itemsErr)
		return
	}
}

func ProxyDataSourceRequest(c *middleware.Context) {
	c.TimeRequest(metrics.M_DataSource_ProxyReq_Timer)

	ds, err := getDatasource(c.ParamsInt64(":id"), c.OrgId)

	if err != nil {
		c.JsonApiErr(500, "Unable to load datasource meta data", err)
		return
	}

	targetUrl, _ := url.Parse(ds.Url)
	if len(setting.DataProxyWhiteList) > 0 {
		if _, exists := setting.DataProxyWhiteList[targetUrl.Host]; !exists {
			c.JsonApiErr(403, "Data proxy hostname and ip are not included in whitelist", nil)
			return
		}
	}

	if ds.Type == m.DS_CLOUDWATCH {
		cloudwatch.HandleRequest(c, ds)
	} else {
		proxyPath := c.Params("*")
		proxy := NewReverseProxy(ds, proxyPath, targetUrl)
		proxy.Transport = dataProxyTransport
		proxy.ServeHTTP(c.Resp, c.Req.Request)
		c.Resp.Header().Del("Set-Cookie")
	}
}

func handleGetDimensions(req *cwRequest, c *middleware.Context) {
	reqParam := &struct {
		Parameters struct {
			Namespace string `json:"namespace"`
		} `json:"parameters"`
	}{}

	json.Unmarshal(req.Body, reqParam)

	var dimensionValues []string
	if !isCustomMetrics(reqParam.Parameters.Namespace) {
		var exists bool
		if dimensionValues, exists = dimensionsMap[reqParam.Parameters.Namespace]; !exists {
			c.JsonApiErr(404, "Unable to find dimension "+reqParam.Parameters.Namespace, nil)
			return
		}
	} else {
		var err error
		if dimensionValues, err = getDimensionsForCustomMetrics(req.Region, reqParam.Parameters.Namespace, req.DataSource.Database, getAllMetrics); err != nil {
			c.JsonApiErr(500, "Unable to call AWS API", err)
			return
		}
	}
	sort.Sort(sort.StringSlice(dimensionValues))

	result := []interface{}{}
	for _, name := range dimensionValues {
		result = append(result, util.DynMap{"text": name, "value": name})
	}

	c.JSON(200, result)
}

func handleListMetrics(req *cwRequest, c *middleware.Context) {
	svc := cloudwatch.New(&aws.Config{Region: aws.String(req.Region)})
	reqParam := &struct {
		Parameters struct {
			Namespace  string                        `json:"namespace"`
			MetricName string                        `json:"metricName"`
			Dimensions []*cloudwatch.DimensionFilter `json:"dimensions"`
		} `json:"parameters"`
	}{}

	json.Unmarshal(req.Body, reqParam)

	params := &cloudwatch.ListMetricsInput{
		Namespace:  aws.String(reqParam.Parameters.Namespace),
		MetricName: aws.String(reqParam.Parameters.MetricName),
		Dimensions: reqParam.Parameters.Dimensions,
	}

	resp, err := svc.ListMetrics(params)
	if err != nil {
		c.JsonApiErr(500, "Unable to call AWS API", err)
		return
	}

	c.JSON(200, resp)
}