private void ProcessAcceptedCall(TLPhoneCallAccepted phoneCallAccepted)
{
DispatchStateChanged(PhoneCallState.STATE_EXCHANGING_KEYS);
if (!TLUtils.CheckGaAndGb(phoneCallAccepted.GB.Data, _secretP.Data))
{
CallFailed();
return;
}
_authKey = MTProtoService.GetAuthKey(_aOrB, phoneCallAccepted.GB.ToBytes(), _secretP.ToBytes());
var keyHash = Utils.ComputeSHA1(_authKey);
var keyFingerprint = new TLLong(BitConverter.ToInt64(keyHash, 12));
var peer = new TLInputPhoneCall
{
Id = phoneCallAccepted.Id,
AccessHash = phoneCallAccepted.AccessHash
};
var protocol = new TLPhoneCallProtocol
{
Flags = new TLInt(0),
UdpP2P = true,
UdpReflector = true,
MinLayer = new TLInt(CALL_MIN_LAYER),
MaxLayer = new TLInt(CALL_MAX_LAYER)
};
_mtProtoService.ConfirmCallAsync(peer, TLString.FromBigEndianData(_ga), keyFingerprint, protocol,
result =>
{
_call = result;
InitiateActualEncryptedCall();
},
error =>
{
CallFailed();
});
}
public void StartOutgoingCall(TLInputUserBase userId)
{
var salt = new Byte[256];
var random = new SecureRandom();
random.NextBytes(salt);
var version = _lastVersion ?? new TLInt(0);
var randomLength = new TLInt(256);
_mtProtoService.GetDHConfigAsync(version, randomLength,
result =>
{
ConfigureDeviceForCall();
ShowNotifications();
StartConnectionSound();
DispatchStateChanged(PhoneCallState.STATE_REQUESTING);
_eventAggregator.Publish(new PhoneCallEventArgs("NotificationCenter.didStartedCall"));
var dhConfig = result as TLDHConfig;
if (dhConfig != null)
{
if (!TLUtils.CheckPrime(dhConfig.P.Data, dhConfig.G.Value))
{
CallFailed();
return;
}
_secretP = dhConfig.P;
_secretG = dhConfig.G;
_secretRandom = dhConfig.Random;
}
for (var i = 0; i < 256; i++)
{
salt[i] = (byte)(salt[i] ^ _secretRandom.Data[i]);
}
var gaBytes = MTProtoService.GetGB(salt, _secretG, _secretP);
var protocol = new TLPhoneCallProtocol
{
Flags = new TLInt(0),
UdpP2P = true,
UdpReflector = true,
MinLayer = new TLInt(CALL_MIN_LAYER),
MaxLayer = new TLInt(CALL_MAX_LAYER)
};
_ga = gaBytes;
var gaHash = Utils.ComputeSHA256(_ga);
_mtProtoService.RequestCallAsync(userId, TLInt.Random(), TLString.FromBigEndianData(gaHash), protocol,
result2 =>
{
_call = result2;
_aOrB = salt;
DispatchStateChanged(PhoneCallState.STATE_WAITING);
//if (_endCallAfterRequest)
//{
// Hangup();
// return;
//}
},
error2 =>
{
});
},
error =>
{
Helpers.Execute.ShowDebugMessage("messages.getDHConfig error " + error);
CallFailed();
});
}