/// <summary>
/// Invite请求消息
/// </summary>
/// <param name="localEP"></param>
/// <param name="remoteEP"></param>
/// <param name="request"></param>
private void InviteHandle(SIPEndPoint localEP, SIPEndPoint remoteEP, SIPRequest request)
{
_byeRemoteEP = remoteEP;
int[] port = SetMediaPort();
var trying = GetResponse(localEP, remoteEP, SIPResponseStatusCodesEnum.Trying, "", request);
_transport.SendResponse(trying);
//Thread.Sleep(200);
SIPResponse audioOK = GetResponse(localEP, remoteEP, SIPResponseStatusCodesEnum.Ok, "", request);
audioOK.Header.ContentType = "application/sdp";
SIPURI localUri = new SIPURI(LocalSIPId, LocalEP.ToHost(), "");
SIPContactHeader contact = new SIPContactHeader(null, localUri);
audioOK.Header.Contact = new List <SIPContactHeader>
{
contact
};
//SDP
audioOK.Body = SetMediaAudio(localEP.Address.ToString(), port[0], request.URI.User);
_audioResponse = audioOK;
_transport.SendResponse(audioOK);
int recvPort = GetReceivePort(request.Body, SDPMediaTypesEnum.audio);
string ip = GetReceiveIP(request.Body);
_audioRemoteEP = new IPEndPoint(IPAddress.Parse(ip), recvPort);
if (_audioChannel == null)
{
_audioChannel = new UDPChannel(TcpConnectMode.active, IPAddress.Any, port, ProtocolType.Udp, false, recvPort);
}
_audioChannel.Start();
}
public void AddRegisterRequest(SIPEndPoint localSIPEndPoint, SIPEndPoint remoteEndPoint,
SIPRequest registerRequest)
{
try
{
if (registerRequest.Method == SIPMethodsEnum.REGISTER)
{
SIPSorceryPerformanceMonitor.IncrementCounter(SIPSorceryPerformanceMonitor
.REGISTRAR_REGISTRATION_REQUESTS_PER_SECOND);
int requestedExpiry = GetRequestedExpiry(registerRequest);
if (registerRequest.Header.To == null)
{
Logger.Logger.Debug("Bad register request, no To header from " + remoteEndPoint + ".");
SIPResponse badReqResponse = SIPTransport.GetResponse(registerRequest,
SIPResponseStatusCodesEnum.BadRequest, "Missing To header");
_sipTransport.SendResponse(badReqResponse);
}
else if (registerRequest.Header.To.ToURI.User.IsNullOrBlank())
{
Logger.Logger.Debug("Bad register request, no To user from " + remoteEndPoint + ".");
SIPResponse badReqResponse = SIPTransport.GetResponse(registerRequest,
SIPResponseStatusCodesEnum.BadRequest, "Missing username on To header");
_sipTransport.SendResponse(badReqResponse);
}
else if (registerRequest.Header.Contact == null || registerRequest.Header.Contact.Count == 0)
{
Logger.Logger.Debug("Bad register request, no Contact header from " + remoteEndPoint + ".");
SIPResponse badReqResponse = SIPTransport.GetResponse(registerRequest,
SIPResponseStatusCodesEnum.BadRequest, "Missing Contact header");
_sipTransport.SendResponse(badReqResponse);
}
else if (requestedExpiry > 0 && requestedExpiry < m_minimumBindingExpiry)
{
Logger.Logger.Debug("Bad register request, no expiry of " + requestedExpiry +
" to small from " +
remoteEndPoint + ".");
SIPResponse tooFrequentResponse = GetErrorResponse(registerRequest,
SIPResponseStatusCodesEnum.IntervalTooBrief, null);
tooFrequentResponse.Header.MinExpires = m_minimumBindingExpiry;
_sipTransport.SendResponse(tooFrequentResponse);
}
else
{
if (m_registerQueue.Count < MAX_REGISTER_QUEUE_SIZE)
{
var registrarTransaction = _sipTransport.CreateNonInviteTransaction(registerRequest,
remoteEndPoint, localSIPEndPoint, null);
lock (m_registerQueue)
{
m_registerQueue.Enqueue(registrarTransaction);
}
}
else
{
Logger.Logger.Error("Register queue exceeded max queue size " + MAX_REGISTER_QUEUE_SIZE +
", overloaded response sent.");
SIPResponse overloadedResponse = SIPTransport.GetResponse(registerRequest,
SIPResponseStatusCodesEnum.TemporarilyUnavailable,
"Registrar overloaded, please try again shortly");
_sipTransport.SendResponse(overloadedResponse);
}
m_registerARE.Set();
}
}
}
catch (Exception excp)
{
Logger.Logger.Error("Exception AddRegisterRequest (" + remoteEndPoint.ToString() + "). ->" +
excp.Message);
}
}
