123 lines
3.8 KiB
Go
123 lines
3.8 KiB
Go
package server
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import (
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"encoding/json"
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"fmt"
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"github.com/SherClockHolmes/webpush-go"
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"heckel.io/ntfy/log"
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"net/http"
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"strings"
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)
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func (s *Server) handleTopicWebPushSubscribe(w http.ResponseWriter, r *http.Request, v *visitor) error {
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var sub webPushSubscribePayload
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err := json.NewDecoder(r.Body).Decode(&sub)
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if err != nil || sub.BrowserSubscription.Endpoint == "" || sub.BrowserSubscription.Keys.P256dh == "" || sub.BrowserSubscription.Keys.Auth == "" {
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return errHTTPBadRequestWebPushSubscriptionInvalid
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}
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topic, err := fromContext[*topic](r, contextTopic)
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if err != nil {
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return err
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}
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if err = s.webPush.AddSubscription(topic.ID, v.MaybeUserID(), sub); err != nil {
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return err
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}
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return s.writeJSON(w, newSuccessResponse())
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}
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func (s *Server) handleTopicWebPushUnsubscribe(w http.ResponseWriter, r *http.Request, _ *visitor) error {
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var payload webPushUnsubscribePayload
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err := json.NewDecoder(r.Body).Decode(&payload)
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if err != nil {
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return errHTTPBadRequestWebPushSubscriptionInvalid
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}
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topic, err := fromContext[*topic](r, contextTopic)
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if err != nil {
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return err
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}
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err = s.webPush.RemoveSubscription(topic.ID, payload.Endpoint)
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if err != nil {
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return err
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}
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return s.writeJSON(w, newSuccessResponse())
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}
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func (s *Server) publishToWebPushEndpoints(v *visitor, m *message) {
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subscriptions, err := s.webPush.SubscriptionsForTopic(m.Topic)
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if err != nil {
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logvm(v, m).Err(err).Warn("Unable to publish web push messages")
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return
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}
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ctx := log.Context{"topic": m.Topic, "message_id": m.ID, "total_count": len(subscriptions)}
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// Importing the emojis in the service worker would add unnecessary complexity,
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// simply do it here for web push notifications instead
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var titleWithDefault, formattedTitle string
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emojis, _, err := toEmojis(m.Tags)
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if err != nil {
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logvm(v, m).Err(err).Fields(ctx).Debug("Unable to publish web push message")
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return
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}
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if m.Title == "" {
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titleWithDefault = m.Topic
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} else {
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titleWithDefault = m.Title
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}
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if len(emojis) > 0 {
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formattedTitle = fmt.Sprintf("%s %s", strings.Join(emojis[:], " "), titleWithDefault)
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} else {
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formattedTitle = titleWithDefault
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}
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for i, xi := range subscriptions {
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go func(i int, sub webPushSubscription) {
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ctx := log.Context{"endpoint": sub.BrowserSubscription.Endpoint, "username": sub.UserID, "topic": m.Topic, "message_id": m.ID}
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payload := &webPushPayload{
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SubscriptionID: fmt.Sprintf("%s/%s", s.config.BaseURL, m.Topic),
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Message: *m,
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FormattedTitle: formattedTitle,
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}
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jsonPayload, err := json.Marshal(payload)
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if err != nil {
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logvm(v, m).Err(err).Fields(ctx).Debug("Unable to publish web push message")
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return
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}
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resp, err := webpush.SendNotification(jsonPayload, &sub.BrowserSubscription, &webpush.Options{
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Subscriber: s.config.WebPushEmailAddress,
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VAPIDPublicKey: s.config.WebPushPublicKey,
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VAPIDPrivateKey: s.config.WebPushPrivateKey,
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// Deliverability on iOS isn't great with lower urgency values,
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// and thus we can't really map lower ntfy priorities to lower urgency values
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Urgency: webpush.UrgencyHigh,
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})
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if err != nil {
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logvm(v, m).Err(err).Fields(ctx).Debug("Unable to publish web push message")
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if err := s.webPush.RemoveByEndpoint(sub.BrowserSubscription.Endpoint); err != nil {
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logvm(v, m).Err(err).Fields(ctx).Warn("Unable to expire subscription")
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}
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return
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}
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// May want to handle at least 429 differently, but for now treat all errors the same
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if !(200 <= resp.StatusCode && resp.StatusCode <= 299) {
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logvm(v, m).Fields(ctx).Field("response", resp).Debug("Unable to publish web push message")
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if err := s.webPush.RemoveByEndpoint(sub.BrowserSubscription.Endpoint); err != nil {
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logvm(v, m).Err(err).Fields(ctx).Warn("Unable to expire subscription")
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}
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return
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}
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}(i, xi)
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}
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}
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