grafana/pkg/services/alerting/notifiers/telegram.go
2016-12-30 15:57:12 +03:00

87 lines
2.3 KiB
Go

package notifiers
import (
"fmt"
"github.com/grafana/grafana/pkg/bus"
"github.com/grafana/grafana/pkg/components/simplejson"
"github.com/grafana/grafana/pkg/log"
"github.com/grafana/grafana/pkg/metrics"
m "github.com/grafana/grafana/pkg/models"
"github.com/grafana/grafana/pkg/services/alerting"
)
var (
telegeramApiUrl string = "https://api.telegram.org/bot%s/%s"
)
func init() {
alerting.RegisterNotifier("telegram", NewTelegramNotifier)
}
type TelegramNotifier struct {
NotifierBase
BotToken string
ChatID string
log log.Logger
}
func NewTelegramNotifier(model *m.AlertNotification) (alerting.Notifier, error) {
if model.Settings == nil {
return nil, alerting.ValidationError{Reason: "No Settings Supplied"}
}
botToken := model.Settings.Get("bottoken").MustString()
chatId := model.Settings.Get("chatid").MustString()
if botToken == "" {
return nil, alerting.ValidationError{Reason: "Could not find Bot Token in settings"}
}
if chatId == "" {
return nil, alerting.ValidationError{Reason: "Could not find Chat Id in settings"}
}
return &TelegramNotifier{
NotifierBase: NewNotifierBase(model.Id, model.IsDefault, model.Name, model.Type, model.Settings),
BotToken: botToken,
ChatID: chatId,
log: log.New("alerting.notifier.telegram"),
}, nil
}
func (this *TelegramNotifier) Notify(evalContext *alerting.EvalContext) error {
this.log.Info("Sending alert notification to", "bot_token", this.BotToken)
this.log.Info("Sending alert notification to", "chat_id", this.ChatID)
metrics.M_Alerting_Notification_Sent_Telegram.Inc(1)
bodyJSON := simplejson.New()
bodyJSON.Set("chat_id", this.ChatID)
bodyJSON.Set("parse_mode", "html")
message := fmt.Sprintf("%s\nState: %s\nMessage: %s\n", evalContext.GetNotificationTitle(), evalContext.Rule.Name, evalContext.Rule.Message)
ruleUrl, err := evalContext.GetRuleUrl()
if err == nil {
message = message + fmt.Sprintf("URL: %s\n", ruleUrl)
}
bodyJSON.Set("text", message)
url := fmt.Sprintf(telegeramApiUrl, this.BotToken, "sendMessage")
body, _ := bodyJSON.MarshalJSON()
cmd := &m.SendWebhookSync{
Url: url,
Body: string(body),
HttpMethod: "POST",
}
if err := bus.DispatchCtx(evalContext.Ctx, cmd); err != nil {
this.log.Error("Failed to send webhook", "error", err, "webhook", this.Name)
return err
}
return nil
}