grafana/pkg/api/alerting.go
2019-01-13 21:30:20 +02:00

343 lines
8.6 KiB
Go

package api
import (
"fmt"
"strconv"
"github.com/grafana/grafana/pkg/api/dtos"
"github.com/grafana/grafana/pkg/bus"
m "github.com/grafana/grafana/pkg/models"
"github.com/grafana/grafana/pkg/services/alerting"
"github.com/grafana/grafana/pkg/services/guardian"
"github.com/grafana/grafana/pkg/services/search"
)
func ValidateOrgAlert(c *m.ReqContext) {
id := c.ParamsInt64(":alertId")
query := m.GetAlertByIdQuery{Id: id}
if err := bus.Dispatch(&query); err != nil {
c.JsonApiErr(404, "Alert not found", nil)
return
}
if c.OrgId != query.Result.OrgId {
c.JsonApiErr(403, "You are not allowed to edit/view alert", nil)
return
}
}
func GetAlertStatesForDashboard(c *m.ReqContext) Response {
dashboardID := c.QueryInt64("dashboardId")
if dashboardID == 0 {
return Error(400, "Missing query parameter dashboardId", nil)
}
query := m.GetAlertStatesForDashboardQuery{
OrgId: c.OrgId,
DashboardId: c.QueryInt64("dashboardId"),
}
if err := bus.Dispatch(&query); err != nil {
return Error(500, "Failed to fetch alert states", err)
}
return JSON(200, query.Result)
}
// GET /api/alerts
func GetAlerts(c *m.ReqContext) Response {
dashboardQuery := c.Query("dashboardQuery")
dashboardTags := c.QueryStrings("dashboardTag")
stringDashboardIDs := c.QueryStrings("dashboardId")
stringFolderIDs := c.QueryStrings("folderId")
dashboardIDs := make([]int64, 0)
for _, id := range stringDashboardIDs {
dashboardID, err := strconv.ParseInt(id, 10, 64)
if err == nil {
dashboardIDs = append(dashboardIDs, dashboardID)
}
}
if dashboardQuery != "" || len(dashboardTags) > 0 || len(stringFolderIDs) > 0 {
folderIDs := make([]int64, 0)
for _, id := range stringFolderIDs {
folderID, err := strconv.ParseInt(id, 10, 64)
if err == nil {
folderIDs = append(folderIDs, folderID)
}
}
searchQuery := search.Query{
Title: dashboardQuery,
Tags: dashboardTags,
SignedInUser: c.SignedInUser,
Limit: 1000,
OrgId: c.OrgId,
DashboardIds: dashboardIDs,
Type: string(search.DashHitDB),
FolderIds: folderIDs,
Permission: m.PERMISSION_VIEW,
}
err := bus.Dispatch(&searchQuery)
if err != nil {
return Error(500, "List alerts failed", err)
}
for _, d := range searchQuery.Result {
if d.Type == search.DashHitDB && d.Id > 0 {
dashboardIDs = append(dashboardIDs, d.Id)
}
}
// if we didn't find any dashboards, return empty result
if len(dashboardIDs) == 0 {
return JSON(200, []*m.AlertListItemDTO{})
}
}
query := m.GetAlertsQuery{
OrgId: c.OrgId,
DashboardIDs: dashboardIDs,
PanelId: c.QueryInt64("panelId"),
Limit: c.QueryInt64("limit"),
User: c.SignedInUser,
Query: c.Query("query"),
}
states := c.QueryStrings("state")
if len(states) > 0 {
query.State = states
}
if err := bus.Dispatch(&query); err != nil {
return Error(500, "List alerts failed", err)
}
for _, alert := range query.Result {
alert.Url = m.GetDashboardUrl(alert.DashboardUid, alert.DashboardSlug)
}
return JSON(200, query.Result)
}
// POST /api/alerts/test
func AlertTest(c *m.ReqContext, dto dtos.AlertTestCommand) Response {
if _, idErr := dto.Dashboard.Get("id").Int64(); idErr != nil {
return Error(400, "The dashboard needs to be saved at least once before you can test an alert rule", nil)
}
backendCmd := alerting.AlertTestCommand{
OrgId: c.OrgId,
Dashboard: dto.Dashboard,
PanelId: dto.PanelId,
User: c.SignedInUser,
}
if err := bus.Dispatch(&backendCmd); err != nil {
if validationErr, ok := err.(alerting.ValidationError); ok {
return Error(422, validationErr.Error(), nil)
}
if err == m.ErrDataSourceAccessDenied {
return Error(403, "Access denied to datasource", err)
}
return Error(500, "Failed to test rule", err)
}
res := backendCmd.Result
dtoRes := &dtos.AlertTestResult{
Firing: res.Firing,
ConditionEvals: res.ConditionEvals,
State: res.Rule.State,
}
if res.Error != nil {
dtoRes.Error = res.Error.Error()
}
for _, log := range res.Logs {
dtoRes.Logs = append(dtoRes.Logs, &dtos.AlertTestResultLog{Message: log.Message, Data: log.Data})
}
for _, match := range res.EvalMatches {
dtoRes.EvalMatches = append(dtoRes.EvalMatches, &dtos.EvalMatch{Metric: match.Metric, Value: match.Value})
}
dtoRes.TimeMs = fmt.Sprintf("%1.3fms", res.GetDurationMs())
return JSON(200, dtoRes)
}
// GET /api/alerts/:id
func GetAlert(c *m.ReqContext) Response {
id := c.ParamsInt64(":alertId")
query := m.GetAlertByIdQuery{Id: id}
if err := bus.Dispatch(&query); err != nil {
return Error(500, "List alerts failed", err)
}
return JSON(200, &query.Result)
}
func GetAlertNotifiers(c *m.ReqContext) Response {
return JSON(200, alerting.GetNotifiers())
}
func GetAlertNotifications(c *m.ReqContext) Response {
query := &m.GetAllAlertNotificationsQuery{OrgId: c.OrgId}
if err := bus.Dispatch(query); err != nil {
return Error(500, "Failed to get alert notifications", err)
}
result := make([]*dtos.AlertNotification, 0)
for _, notification := range query.Result {
result = append(result, dtos.NewAlertNotification(notification))
}
return JSON(200, result)
}
func GetAlertNotificationByID(c *m.ReqContext) Response {
query := &m.GetAlertNotificationsQuery{
OrgId: c.OrgId,
Id: c.ParamsInt64("notificationId"),
}
if err := bus.Dispatch(query); err != nil {
return Error(500, "Failed to get alert notifications", err)
}
if query.Result == nil {
return Error(404, "Alert notification not found", nil)
}
return JSON(200, dtos.NewAlertNotification(query.Result))
}
func CreateAlertNotification(c *m.ReqContext, cmd m.CreateAlertNotificationCommand) Response {
cmd.OrgId = c.OrgId
if err := bus.Dispatch(&cmd); err != nil {
return Error(500, "Failed to create alert notification", err)
}
return JSON(200, dtos.NewAlertNotification(cmd.Result))
}
func UpdateAlertNotification(c *m.ReqContext, cmd m.UpdateAlertNotificationCommand) Response {
cmd.OrgId = c.OrgId
if err := bus.Dispatch(&cmd); err != nil {
return Error(500, "Failed to update alert notification", err)
}
return JSON(200, dtos.NewAlertNotification(cmd.Result))
}
func DeleteAlertNotification(c *m.ReqContext) Response {
cmd := m.DeleteAlertNotificationCommand{
OrgId: c.OrgId,
Id: c.ParamsInt64("notificationId"),
}
if err := bus.Dispatch(&cmd); err != nil {
return Error(500, "Failed to delete alert notification", err)
}
return Success("Notification deleted")
}
//POST /api/alert-notifications/test
func NotificationTest(c *m.ReqContext, dto dtos.NotificationTestCommand) Response {
cmd := &alerting.NotificationTestCommand{
Name: dto.Name,
Type: dto.Type,
Settings: dto.Settings,
}
if err := bus.Dispatch(cmd); err != nil {
if err == m.ErrSmtpNotEnabled {
return Error(412, err.Error(), err)
}
return Error(500, "Failed to send alert notifications", err)
}
return Success("Test notification sent")
}
//POST /api/alerts/:alertId/pause
func PauseAlert(c *m.ReqContext, dto dtos.PauseAlertCommand) Response {
alertID := c.ParamsInt64("alertId")
query := m.GetAlertByIdQuery{Id: alertID}
if err := bus.Dispatch(&query); err != nil {
return Error(500, "Get Alert failed", err)
}
guardian := guardian.New(query.Result.DashboardId, c.OrgId, c.SignedInUser)
if canEdit, err := guardian.CanEdit(); err != nil || !canEdit {
if err != nil {
return Error(500, "Error while checking permissions for Alert", err)
}
return Error(403, "Access denied to this dashboard and alert", nil)
}
cmd := m.PauseAlertCommand{
OrgId: c.OrgId,
AlertIds: []int64{alertID},
Paused: dto.Paused,
}
if err := bus.Dispatch(&cmd); err != nil {
return Error(500, "", err)
}
var response m.AlertStateType = m.AlertStateUnknown
pausedState := "un-paused"
if cmd.Paused {
response = m.AlertStatePaused
pausedState = "paused"
}
result := map[string]interface{}{
"alertId": alertID,
"state": response,
"message": "Alert " + pausedState,
}
return JSON(200, result)
}
//POST /api/admin/pause-all-alerts
func PauseAllAlerts(c *m.ReqContext, dto dtos.PauseAllAlertsCommand) Response {
updateCmd := m.PauseAllAlertCommand{
Paused: dto.Paused,
}
if err := bus.Dispatch(&updateCmd); err != nil {
return Error(500, "Failed to pause alerts", err)
}
var response m.AlertStateType = m.AlertStatePending
pausedState := "un paused"
if updateCmd.Paused {
response = m.AlertStatePaused
pausedState = "paused"
}
result := map[string]interface{}{
"state": response,
"message": "alerts " + pausedState,
"alertsAffected": updateCmd.ResultCount,
}
return JSON(200, result)
}