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https://github.com/grafana/grafana.git
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fd583a0e3b
* Allow customizable googlechat message via optional setting * Add optional message field in googlechat contact point configurator * Fix strange error message on send if template fails to fully evaluate * Elevate template evaluation failure logs to Warn level * Extract default.title template embed from all channels to shared constant
100 lines
2.6 KiB
Go
100 lines
2.6 KiB
Go
package channels
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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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"path"
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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/prometheus/alertmanager/template"
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"github.com/prometheus/alertmanager/types"
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)
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var (
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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 *NotificationChannelConfig, t *template.Template, fn GetDecryptedValueFn) (*LineNotifier, error) {
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if model.Settings == nil {
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return nil, receiverInitError{Cfg: *model, Reason: "no settings supplied"}
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}
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if model.SecureSettings == nil {
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return nil, receiverInitError{Cfg: *model, Reason: "no secure settings supplied"}
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}
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token := fn(context.Background(), model.SecureSettings, "token", model.Settings.Get("token").MustString())
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if token == "" {
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return nil, receiverInitError{Cfg: *model, Reason: "could not find token in settings"}
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}
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return &LineNotifier{
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Base: NewBase(&models.AlertNotification{
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Uid: model.UID,
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Name: model.Name,
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Type: model.Type,
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DisableResolveMessage: model.DisableResolveMessage,
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Settings: model.Settings,
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}),
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Token: token,
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log: log.New("alerting.notifier.line"),
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tmpl: t,
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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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*Base
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Token string
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log log.Logger
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tmpl *template.Template
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}
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// Notify send an alert notification to LINE
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func (ln *LineNotifier) Notify(ctx context.Context, as ...*types.Alert) (bool, error) {
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ln.log.Debug("Executing line notification", "notification", ln.Name)
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ruleURL := path.Join(ln.tmpl.ExternalURL.String(), "/alerting/list")
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var tmplErr error
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tmpl, _ := TmplText(ctx, ln.tmpl, as, ln.log, &tmplErr)
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body := fmt.Sprintf(
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"%s\n%s\n\n%s",
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tmpl(DefaultMessageTitleEmbed),
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ruleURL,
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tmpl(`{{ template "default.message" . }}`),
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)
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if tmplErr != nil {
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ln.log.Warn("failed to template Line message", "err", tmplErr.Error())
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}
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form := url.Values{}
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form.Add("message", body)
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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(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 false, err
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}
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return true, nil
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}
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func (ln *LineNotifier) SendResolved() bool {
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return !ln.GetDisableResolveMessage()
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}
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