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fix: Only trigger onCall streams by latest call event for a call_id 

This should fix that calls can get
started on
This commit is contained in:
Christian Pauly 2022-06-28 11:10:27 +02:00
parent c591c1d4b5
commit 0f17fec3f4
1 changed files with 69 additions and 34 deletions
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103
lib/src/client.dart
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@ -1793,6 +1793,10 @@ class Client extends MatrixApi {
List<BasicEvent> events,
EventUpdateType type,
) async {
// Calling events can be omitted if they are outdated from the same sync. So
// we collect them first before we handle them.
final callEvents = <Event>{};
for (final event in events) {
// The client must ignore any new m.room.encryption event to prevent
// man-in-the-middle attacks!
@ -1828,43 +1832,74 @@ class Client extends MatrixApi {
}
onEvent.add(update);
final rawUnencryptedEvent = update.content;
if (prevBatch != null && type == EventUpdateType.timeline) {
if (rawUnencryptedEvent['type'] == EventTypes.CallInvite) {
onCallInvite.add(Event.fromJson(rawUnencryptedEvent, room));
} else if (rawUnencryptedEvent['type'] == EventTypes.CallHangup) {
onCallHangup.add(Event.fromJson(rawUnencryptedEvent, room));
} else if (rawUnencryptedEvent['type'] == EventTypes.CallAnswer) {
onCallAnswer.add(Event.fromJson(rawUnencryptedEvent, room));
} else if (rawUnencryptedEvent['type'] == EventTypes.CallCandidates) {
onCallCandidates.add(Event.fromJson(rawUnencryptedEvent, room));
} else if (rawUnencryptedEvent['type'] == EventTypes.CallSelectAnswer) {
onCallSelectAnswer.add(Event.fromJson(rawUnencryptedEvent, room));
} else if (rawUnencryptedEvent['type'] == EventTypes.CallReject) {
onCallReject.add(Event.fromJson(rawUnencryptedEvent, room));
} else if (rawUnencryptedEvent['type'] == EventTypes.CallNegotiate) {
onCallNegotiate.add(Event.fromJson(rawUnencryptedEvent, room));
} else if (rawUnencryptedEvent['type'] == EventTypes.CallReplaces) {
onCallReplaces.add(Event.fromJson(rawUnencryptedEvent, room));
} else if (rawUnencryptedEvent['type'] ==
EventTypes.CallAssertedIdentity ||
rawUnencryptedEvent['type'] ==
EventTypes.CallAssertedIdentityPrefix) {
onAssertedIdentityReceived
.add(Event.fromJson(rawUnencryptedEvent, room));
} else if (rawUnencryptedEvent['type'] ==
EventTypes.CallSDPStreamMetadataChanged ||
rawUnencryptedEvent['type'] ==
EventTypes.CallSDPStreamMetadataChangedPrefix) {
onSDPStreamMetadataChangedReceived
.add(Event.fromJson(rawUnencryptedEvent, room));
if (update.content.tryGet<String>('type')?.startsWith('m.call.') ??
false) {
final callEvent = Event.fromJson(update.content, room);
final callId = callEvent.content.tryGet<String>('call_id');
callEvents.add(callEvent);
// Call Invites should be omitted for a call that is already answered,
// has ended, is rejectd or replaced.
const callEndedEventTypes = {
EventTypes.CallAnswer,
EventTypes.CallHangup,
EventTypes.CallReject,
EventTypes.CallReplaces,
};
const ommitWhenCallEndedTypes = {
EventTypes.CallInvite,
EventTypes.CallCandidates,
EventTypes.CallNegotiate,
EventTypes.CallSDPStreamMetadataChanged,
EventTypes.CallSDPStreamMetadataChangedPrefix,
};
if (callEndedEventTypes.contains(callEvent.type)) {
callEvents.removeWhere((event) {
if (ommitWhenCallEndedTypes.contains(event.type) &&
event.content.tryGet<String>('call_id') == callId) {
Logs().v(
'Ommit "${event.type}" event for an already terminated call');
return true;
}
return false;
});
}
}
}
}
callEvents.forEach(_callStreamByCallEvent);
}
void _callStreamByCallEvent(Event event) {
if (event.type == EventTypes.CallInvite) {
onCallInvite.add(event);
} else if (event.type == EventTypes.CallHangup) {
onCallHangup.add(event);
} else if (event.type == EventTypes.CallAnswer) {
onCallAnswer.add(event);
} else if (event.type == EventTypes.CallCandidates) {
onCallCandidates.add(event);
} else if (event.type == EventTypes.CallSelectAnswer) {
onCallSelectAnswer.add(event);
} else if (event.type == EventTypes.CallReject) {
onCallReject.add(event);
} else if (event.type == EventTypes.CallNegotiate) {
onCallNegotiate.add(event);
} else if (event.type == EventTypes.CallReplaces) {
onCallReplaces.add(event);
} else if (event.type == EventTypes.CallAssertedIdentity ||
event.type == EventTypes.CallAssertedIdentityPrefix) {
onAssertedIdentityReceived.add(event);
} else if (event.type == EventTypes.CallSDPStreamMetadataChanged ||
event.type == EventTypes.CallSDPStreamMetadataChangedPrefix) {
onSDPStreamMetadataChangedReceived.add(event);
// TODO(duan): Only used (org.matrix.msc3401.call) during the current test,
// need to add GroupCallPrefix in matrix_api_lite
} else if (rawUnencryptedEvent['type'] == EventTypes.GroupCallPrefix) {
onGroupCallRequest.add(Event.fromJson(rawUnencryptedEvent, room));
}
}
} else if (event.type == EventTypes.GroupCallPrefix) {
onGroupCallRequest.add(event);
}
}