grafana/pkg/services/alerting/notifiers/line.go

99 lines
2.7 KiB
Go

package notifiers
import (
"fmt"
"net/url"
"github.com/grafana/grafana/pkg/bus"
"github.com/grafana/grafana/pkg/log"
m "github.com/grafana/grafana/pkg/models"
"github.com/grafana/grafana/pkg/services/alerting"
)
func init() {
alerting.RegisterNotifier(&alerting.NotifierPlugin{
Type: "LINE",
Name: "LINE",
Description: "Send notifications to LINE notify",
Factory: NewLINENotifier,
OptionsTemplate: `
<div class="gf-form-group">
<h3 class="page-heading">LINE notify settings</h3>
<div class="gf-form">
<span class="gf-form-label width-14">Token</span>
<input type="text" required class="gf-form-input max-width-22" ng-model="ctrl.model.settings.token" placeholder="LINE notify token key"></input>
</div>
</div>
`,
})
}
const (
lineNotifyUrl string = "https://notify-api.line.me/api/notify"
)
func NewLINENotifier(model *m.AlertNotification) (alerting.Notifier, error) {
token := model.Settings.Get("token").MustString()
if token == "" {
return nil, alerting.ValidationError{Reason: "Could not find token in settings"}
}
return &LineNotifier{
NotifierBase: NewNotifierBase(model.Id, model.IsDefault, model.Name, model.Type, model.NotifyOnce, model.Frequency, model.Settings),
Token: token,
log: log.New("alerting.notifier.line"),
}, nil
}
type LineNotifier struct {
NotifierBase
Token string
log log.Logger
}
func (this *LineNotifier) Notify(evalContext *alerting.EvalContext) error {
this.log.Info("Executing line notification", "ruleId", evalContext.Rule.Id, "notification", this.Name)
var err error
switch evalContext.Rule.State {
case m.AlertStateAlerting:
err = this.createAlert(evalContext)
}
return err
}
func (this *LineNotifier) createAlert(evalContext *alerting.EvalContext) error {
this.log.Info("Creating Line notify", "ruleId", evalContext.Rule.Id, "notification", this.Name)
ruleUrl, err := evalContext.GetRuleUrl()
if err != nil {
this.log.Error("Failed get rule link", "error", err)
return err
}
form := url.Values{}
body := fmt.Sprintf("%s - %s\n%s", evalContext.Rule.Name, ruleUrl, evalContext.Rule.Message)
form.Add("message", body)
if evalContext.ImagePublicUrl != "" {
form.Add("imageThumbnail", evalContext.ImagePublicUrl)
form.Add("imageFullsize", evalContext.ImagePublicUrl)
}
cmd := &m.SendWebhookSync{
Url: lineNotifyUrl,
HttpMethod: "POST",
HttpHeader: map[string]string{
"Authorization": fmt.Sprintf("Bearer %s", this.Token),
"Content-Type": "application/x-www-form-urlencoded;charset=UTF-8",
},
Body: form.Encode(),
}
if err := bus.DispatchCtx(evalContext.Ctx, cmd); err != nil {
this.log.Error("Failed to send notification to LINE", "error", err, "body", body)
return err
}
return nil
}