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Merge branch 'voip/sframe-support' into voip/livekit-group-call
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,102 @@ | ||
| import 'dart:typed_data'; | ||
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| import 'package:webrtc_interface/webrtc_interface.dart'; | ||
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| import 'package:matrix/matrix.dart'; | ||
|
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| const String matrixWebRtcRatchetSalt = 'matrix-webrtc-ratchet-salt'; | ||
|
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| class FrameCryptorWrapper { | ||
| FrameCryptorWrapper(this.frameCryptor, this.keyProvider); | ||
| final FrameCryptor frameCryptor; | ||
| final KeyProvider keyProvider; | ||
| } | ||
|
|
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| extension SframeExt on VoIP { | ||
| Future<KeyProvider> _initKeyProvider() async { | ||
| return await delegate.frameCryptorFactory!.createDefaultKeyProvider( | ||
| KeyProviderOptions( | ||
| sharedKey: false, | ||
| ratchetSalt: Uint8List.fromList(matrixWebRtcRatchetSalt.codeUnits), | ||
| ratchetWindowSize: 16, | ||
| ), | ||
| ); | ||
| } | ||
|
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| Future<void> setSframeEnabled(String callId, bool enabled) async { | ||
| frameCryptors.forEach((key, fc) async { | ||
| if (key.startsWith(callId)) { | ||
| await fc.frameCryptor.setEnabled(enabled); | ||
| } | ||
| }); | ||
| } | ||
|
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| Future<void> disposeSFrame(String callId) async { | ||
| frameCryptors.removeWhere((key, fc) { | ||
| if (key.startsWith(callId)) { | ||
| fc.frameCryptor.dispose(); | ||
| fc.keyProvider.dispose(); | ||
| return true; | ||
| } | ||
| return false; | ||
| }); | ||
| } | ||
|
|
||
| Future<void> handleAddRtpSender( | ||
| String callId, | ||
| RTCRtpSender sender, | ||
| String sFrameKey, | ||
| ) async { | ||
| final trackId = sender.track?.id; | ||
| final kind = sender.track?.kind; | ||
| final id = '$callId-${kind!}_${trackId!}_sender'; | ||
| if (!frameCryptors.containsKey(id)) { | ||
| final keyProvider = await _initKeyProvider(); | ||
| final frameCryptor = | ||
| await delegate.frameCryptorFactory!.createFrameCryptorForRtpSender( | ||
| participantId: id, | ||
| sender: sender, | ||
| algorithm: Algorithm.kAesGcm, | ||
| keyProvider: keyProvider, | ||
| ); | ||
| frameCryptor.onFrameCryptorStateChanged = (participantId, state) => Logs() | ||
| .d('[VoipPlugin] Encryptor onFrameCryptorStateChanged $participantId $state'); | ||
| frameCryptors[id] = FrameCryptorWrapper(frameCryptor, keyProvider); | ||
| await keyProvider.setKey( | ||
| participantId: id, | ||
| index: 0, | ||
| key: Uint8List.fromList(sFrameKey.codeUnits), | ||
| ); | ||
| await frameCryptor.setEnabled(true); | ||
| } | ||
| } | ||
|
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||
| Future<void> handleAddRtpReceiver( | ||
| String callId, | ||
| RTCRtpReceiver receiver, | ||
| String sframeKey, | ||
| ) async { | ||
| final trackId = receiver.track?.id; | ||
| final kind = receiver.track?.kind; | ||
| final id = '$callId-${kind!}_${trackId!}_receiver'; | ||
| if (!frameCryptors.containsKey(id)) { | ||
| final keyProvider = await _initKeyProvider(); | ||
| final frameCryptor = | ||
| await delegate.frameCryptorFactory!.createFrameCryptorForRtpReceiver( | ||
| participantId: id, | ||
| receiver: receiver, | ||
| algorithm: Algorithm.kAesGcm, | ||
| keyProvider: keyProvider, | ||
| ); | ||
| frameCryptor.onFrameCryptorStateChanged = (participantId, state) => Logs() | ||
| .d('[VoipPlugin]Decryptor onFrameCryptorStateChanged $participantId $state'); | ||
| frameCryptors[id] = FrameCryptorWrapper(frameCryptor, keyProvider); | ||
| await keyProvider.setKey( | ||
| participantId: id, | ||
| index: 0, | ||
| key: Uint8List.fromList(sframeKey.codeUnits), | ||
| ); | ||
| await frameCryptor.setEnabled(true); | ||
| } | ||
| } | ||
| } |
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