forked from mirrors/ntfy
ios
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4b86085a8c
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577cd0fcea
1 changed files with 29 additions and 1 deletions
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@ -12,7 +12,8 @@ import (
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)
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const (
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fcmMessageLimit = 4000
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fcmMessageLimit = 4000
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fcmApnsBodyMessageLimit = 100
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)
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// maybeTruncateFCMMessage performs best-effort truncation of FCM messages.
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@ -34,6 +35,20 @@ func maybeTruncateFCMMessage(m *messaging.Message) *messaging.Message {
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return m
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}
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// maybeTruncateAPNSBodyMessage truncates the body for APNS.
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//
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// The "body" of the push notification can contain the entire message, which would count doubly for the overall length
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// of the APNS payload. I set a limit of 100 characters before truncating the notification "body" with ellipsis.
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// The message would not be changed (unless truncated for being too long). Note: if the payload is too large (>4KB),
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// APNS will simply reject / discard the notification, meaning it will never arrive on the iOS device.
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func maybeTruncateAPNSBodyMessage(s string) string {
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if len(s) >= fcmApnsBodyMessageLimit {
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over := len(s) - fcmApnsBodyMessageLimit + 3 // len("...")
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return s[:len(s)-over] + "..."
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}
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return s
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}
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func createFirebaseSubscriber(credentialsFile string, auther auth.Auther) (subscriber, error) {
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fb, err := firebase.NewApp(context.Background(), nil, option.WithCredentialsFile(credentialsFile))
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if err != nil {
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@ -55,6 +70,7 @@ func createFirebaseSubscriber(credentialsFile string, auther auth.Auther) (subsc
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func toFirebaseMessage(m *message, auther auth.Auther) (*messaging.Message, error) {
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var data map[string]string // Mostly matches https://ntfy.sh/docs/subscribe/api/#json-message-format
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var apnsConfig *messaging.APNSConfig
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switch m.Event {
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case keepaliveEvent, openEvent:
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data = map[string]string{
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@ -95,6 +111,17 @@ func toFirebaseMessage(m *message, auther auth.Auther) (*messaging.Message, erro
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data["attachment_expires"] = fmt.Sprintf("%d", m.Attachment.Expires)
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data["attachment_url"] = m.Attachment.URL
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}
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apnsConfig = &messaging.APNSConfig{
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Payload: &messaging.APNSPayload{
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Aps: &messaging.Aps{
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MutableContent: true,
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Alert: &messaging.ApsAlert{
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Title: m.Title,
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Body: maybeTruncateAPNSBodyMessage(m.Message),
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},
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},
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},
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}
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} else {
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// If anonymous read for a topic is not allowed, we cannot send the message along
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// via Firebase. Instead, we send a "poll_request" message, asking the client to poll.
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@ -116,5 +143,6 @@ func toFirebaseMessage(m *message, auther auth.Auther) (*messaging.Message, erro
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Topic: m.Topic,
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Data: data,
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Android: androidConfig,
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APNS: apnsConfig,
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}), nil
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}
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