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102 lines
2.9 KiB
Go
102 lines
2.9 KiB
Go
package notifiers
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import (
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"context"
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"fmt"
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"net/url"
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"github.com/grafana/grafana/pkg/bus"
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"github.com/grafana/grafana/pkg/infra/log"
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"github.com/grafana/grafana/pkg/models"
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"github.com/grafana/grafana/pkg/services/alerting"
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"github.com/grafana/grafana/pkg/setting"
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)
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func init() {
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alerting.RegisterNotifier(&alerting.NotifierPlugin{
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Type: "LINE",
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Name: "LINE",
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Description: "Send notifications to LINE notify",
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Heading: "LINE notify settings",
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Factory: NewLINENotifier,
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Options: []alerting.NotifierOption{
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{
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Label: "Token",
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Element: alerting.ElementTypeInput,
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InputType: alerting.InputTypeText,
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Placeholder: "LINE notify token key",
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PropertyName: "token",
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Required: true,
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Secure: true,
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}},
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})
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}
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const (
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lineNotifyURL string = "https://notify-api.line.me/api/notify"
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)
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// NewLINENotifier is the constructor for the LINE notifier
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func NewLINENotifier(model *models.AlertNotification, fn alerting.GetDecryptedValueFn) (alerting.Notifier, error) {
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token := fn(context.Background(), model.SecureSettings, "token", model.Settings.Get("token").MustString(), setting.SecretKey)
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if token == "" {
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return nil, alerting.ValidationError{Reason: "Could not find token in settings"}
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}
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return &LineNotifier{
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NotifierBase: NewNotifierBase(model),
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Token: token,
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log: log.New("alerting.notifier.line"),
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}, nil
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}
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// LineNotifier is responsible for sending
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// alert notifications to LINE.
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type LineNotifier struct {
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NotifierBase
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Token string
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log log.Logger
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}
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// Notify send an alert notification to LINE
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func (ln *LineNotifier) Notify(evalContext *alerting.EvalContext) error {
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ln.log.Info("Executing line notification", "ruleId", evalContext.Rule.ID, "notification", ln.Name)
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return ln.createAlert(evalContext)
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}
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func (ln *LineNotifier) createAlert(evalContext *alerting.EvalContext) error {
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ln.log.Info("Creating Line notify", "ruleId", evalContext.Rule.ID, "notification", ln.Name)
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ruleURL, err := evalContext.GetRuleURL()
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if err != nil {
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ln.log.Error("Failed get rule link", "error", err)
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return err
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}
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form := url.Values{}
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body := fmt.Sprintf("%s - %s\n%s", evalContext.GetNotificationTitle(), ruleURL, evalContext.Rule.Message)
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form.Add("message", body)
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if ln.NeedsImage() && evalContext.ImagePublicURL != "" {
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form.Add("imageThumbnail", evalContext.ImagePublicURL)
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form.Add("imageFullsize", evalContext.ImagePublicURL)
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}
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cmd := &models.SendWebhookSync{
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Url: lineNotifyURL,
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HttpMethod: "POST",
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HttpHeader: map[string]string{
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"Authorization": fmt.Sprintf("Bearer %s", ln.Token),
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"Content-Type": "application/x-www-form-urlencoded;charset=UTF-8",
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},
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Body: form.Encode(),
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}
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if err := bus.Dispatch(evalContext.Ctx, cmd); err != nil {
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ln.log.Error("Failed to send notification to LINE", "error", err, "body", body)
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return err
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}
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return nil
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}
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