public void Call(SIPCallDescriptor sipCallDescriptor)
{
CallDescriptor = sipCallDescriptor;
m_xmppClient = new XMPPClient("talk.google.com", 5222, "google.com", null, null);
m_xmppClient.IsBound += IsBound;
m_xmppClient.Answered += Answered;
IPEndPoint sdpEndPoint = SDP.GetSDPRTPEndPoint(CallDescriptor.Content);
if (IPSocket.IsPrivateAddress(sdpEndPoint.Address.ToString()))
{
bool wasSDPMangled;
CallDescriptor.Content = SIPPacketMangler.MangleSDP(CallDescriptor.Content, CallDescriptor.MangleIPAddress.ToString(), out wasSDPMangled);
}
ThreadPool.QueueUserWorkItem(delegate { m_xmppClient.Connect(); });
}
private RTPManager _rtpManager; // The RTP handler used for sessions established by a Google Voice call.
#endregion Fields
#region Constructors
public GingleClient()
{
if (!m_xmppUsername.IsNullOrBlank() && !m_xmppPassword.IsNullOrBlank())
{
// Set up the XMPP client.
m_xmppClient = new XMPPClient(XMPP_SERVER, XMPP_SERVER_PORT, XMPP_REALM, m_xmppUsername, m_xmppPassword);
m_xmppClient.Disconnected += XMPPDisconnected;
m_xmppClient.IsBound += () => { _isBound = true; };
ThreadPool.QueueUserWorkItem(delegate { BindClient(); });
}
else
{
logger.Warn("XMPP client stopping as no username and password provided.");
}
}
private static void XMPPDisconnected()
{
Console.WriteLine("The XMPP client was disconnected.");
m_xmppClient = null;
}
private static void SIPTransportRequestReceived(SIPEndPoint localSIPEndPoint, SIPEndPoint remoteEndPoint, SIPRequest sipRequest)
{
if (sipRequest.Method == SIPMethodsEnum.INVITE)
{
Console.WriteLine("INVITE received from " + localSIPEndPoint.ToString());
IPEndPoint sipPhoneEndPoint = SDP.GetSDPRTPEndPoint(sipRequest.Body);
UASInviteTransaction uasTransaction = m_sipTransport.CreateUASTransaction(sipRequest, remoteEndPoint, localSIPEndPoint, null);
SIPServerUserAgent uas = new SIPServerUserAgent(m_sipTransport, null, null, null, SIPCallDirection.In, null, null, null, uasTransaction);
SIPResponse tryingResponse = SIPTransport.GetResponse(sipRequest, SIPResponseStatusCodesEnum.Trying, null);
uasTransaction.SendInformationalResponse(tryingResponse);
if (m_xmppClient == null)
{
m_xmppClient = new XMPPClient(XMPP_SERVER, XMPP_SERVER_PORT, XMPP_REALM, m_xmppUsername, m_xmppPassword);
m_xmppClient.Disconnected += XMPPDisconnected;
m_xmppClient.IsBound += () => { XMPPPlaceCall(uas); };
ThreadPool.QueueUserWorkItem(delegate { m_xmppClient.Connect(); });
}
else
{
XMPPPlaceCall(uas);
}
}
else if (sipRequest.Method == SIPMethodsEnum.CANCEL)
{
UASInviteTransaction inviteTransaction = (UASInviteTransaction)m_sipTransport.GetTransaction(SIPTransaction.GetRequestTransactionId(sipRequest.Header.Vias.TopViaHeader.Branch, SIPMethodsEnum.INVITE));
if (inviteTransaction != null)
{
Console.WriteLine("Matching CANCEL request received " + sipRequest.URI.ToString() + ".");
SIPCancelTransaction cancelTransaction = m_sipTransport.CreateCancelTransaction(sipRequest, remoteEndPoint, localSIPEndPoint, inviteTransaction);
cancelTransaction.GotRequest(localSIPEndPoint, remoteEndPoint, sipRequest);
}
else
{
Console.WriteLine("No matching transaction was found for CANCEL to " + sipRequest.URI.ToString() + ".");
SIPResponse noCallLegResponse = SIPTransport.GetResponse(sipRequest, SIPResponseStatusCodesEnum.CallLegTransactionDoesNotExist, null);
m_sipTransport.SendResponse(noCallLegResponse);
}
}
else if (sipRequest.Method == SIPMethodsEnum.BYE)
{
Console.WriteLine("BYE request received.");
if (m_activeCalls.ContainsKey(sipRequest.Header.CallId))
{
SIPResponse okResponse = SIPTransport.GetResponse(sipRequest, SIPResponseStatusCodesEnum.Ok, null);
m_sipTransport.SendResponse(okResponse);
m_activeCalls[sipRequest.Header.CallId].TerminateXMPPCall();
m_activeCalls.Remove(sipRequest.Header.CallId);
}
else
{
SIPResponse doesntExistResponse = SIPTransport.GetResponse(sipRequest, SIPResponseStatusCodesEnum.CallLegTransactionDoesNotExist, null);
m_sipTransport.SendResponse(doesntExistResponse);
}
}
}
/// <summary>
/// The XMPP connection was disconnected.
/// </summary>
private void XMPPDisconnected()
{
StatusMessage("The Google Voice XMPP client connection was unexpectedly disconnected.");
m_xmppClient = null;
_isBound = false;
CallFinished();
}