private void SendInitialRegister()
{
try
{
if (m_attempts >= MAX_REGISTER_ATTEMPTS)
{
Log_External(new SIPMonitorConsoleEvent(SIPMonitorServerTypesEnum.UserAgentClient, SIPMonitorEventTypesEnum.ContactRegisterFailed, "Registration to " + m_sipAccountAOR.ToString() + " reached the maximum number of allowed attempts without a failure condition.", null));
m_isRegistered = false;
RegistrationTemporaryFailure?.Invoke(m_sipAccountAOR, "Registration reached the maximum number of allowed attempts.");
m_waitForRegistrationMRE.Set();
}
else
{
m_attempts++;
SIPEndPoint registrarSIPEndPoint = m_outboundProxy;
if (registrarSIPEndPoint == null)
{
SIPDNSLookupResult lookupResult = m_sipTransport.GetHostEndPoint(m_registrarHost, false);
if (lookupResult.LookupError != null)
{
Log_External(new SIPMonitorConsoleEvent(SIPMonitorServerTypesEnum.UserAgentClient, SIPMonitorEventTypesEnum.ContactRegisterFailed, "Could not resolve " + m_registrarHost + ", " + lookupResult.LookupError, null));
}
else
{
registrarSIPEndPoint = lookupResult.GetSIPEndPoint();
}
}
if (registrarSIPEndPoint == null)
{
logger.LogWarning("SIPRegistrationAgent could not resolve " + m_registrarHost + ".");
RegistrationFailed?.Invoke(m_sipAccountAOR, "Could not resolve " + m_registrarHost + ".");
}
else
{
Log_External(new SIPMonitorConsoleEvent(SIPMonitorServerTypesEnum.UserAgentClient, SIPMonitorEventTypesEnum.ContactRegisterInProgress, "Initiating registration to " + m_registrarHost + " at " + registrarSIPEndPoint.ToString() + " for " + m_sipAccountAOR.ToString() + ".", null));
SIPRequest regRequest = GetRegistrationRequest();
SIPNonInviteTransaction regTransaction = new SIPNonInviteTransaction(m_sipTransport, regRequest, registrarSIPEndPoint);
// These handlers need to be on their own threads to take the processing off the SIP transport layer.
regTransaction.NonInviteTransactionFinalResponseReceived += (lep, rep, tn, rsp) => { ThreadPool.QueueUserWorkItem(delegate { ServerResponseReceived(lep, rep, tn, rsp); }); return(Task.FromResult(SocketError.Success)); };
regTransaction.NonInviteTransactionTimedOut += (tn) => { ThreadPool.QueueUserWorkItem(delegate { RegistrationTimedOut(tn); }); };
m_sipTransport.SendTransaction(regTransaction);
}
}
}
catch (Exception excp)
{
logger.LogError("Exception SendInitialRegister to " + m_registrarHost + ". " + excp.Message);
RegistrationFailed?.Invoke(m_sipAccountAOR, "Exception SendInitialRegister to " + m_registrarHost + ". " + excp.Message);
}
}
public SIPEndPoint Resolve(SIPResponse sipResponse)
{
SIPViaHeader topVia = sipResponse.Header.Vias.TopViaHeader;
SIPEndPoint dstEndPoint = new SIPEndPoint(topVia.Transport, m_sipTransport.GetHostEndPoint(topVia.ReceivedFromAddress, true).GetSIPEndPoint().GetIPEndPoint());
return(dstEndPoint);
}
private void SendInitialRegister()
{
try
{
if (m_attempts >= MAX_REGISTER_ATTEMPTS)
{
m_isRegistered = false;
if (RegistrationTemporaryFailure != null)
{
RegistrationTemporaryFailure(m_sipAccountAOR,
"Registration reached the maximum number of allowed attempts.");
}
m_waitForRegistrationMRE.Set();
}
else
{
m_attempts++;
SIPEndPoint registrarSIPEndPoint = m_outboundProxy;
if (registrarSIPEndPoint == null)
{
SIPDNSLookupResult lookupResult = m_sipTransport.GetHostEndPoint(m_registrarHost, false);
if (lookupResult.LookupError != null)
{
}
else
{
registrarSIPEndPoint = lookupResult.GetSIPEndPoint();
}
}
if (registrarSIPEndPoint == null && RegistrationFailed != null)
{
RegistrationFailed(m_sipAccountAOR, "Could not resolve " + m_registrarHost + ".");
}
else
{
SIPRequest regRequest = GetRegistrationRequest(m_localEndPoint);
SIPNonInviteTransaction regTransaction = m_sipTransport.CreateNonInviteTransaction(regRequest,
registrarSIPEndPoint, m_localEndPoint, m_outboundProxy);
// These handlers need to be on their own threads to take the processing off the SIP transport layer.
regTransaction.NonInviteTransactionFinalResponseReceived += (lep, rep, tn, rsp) =>
{
ThreadPool.QueueUserWorkItem(delegate { ServerResponseReceived(lep, rep, tn, rsp); });
};
regTransaction.NonInviteTransactionTimedOut += (tn) =>
{
ThreadPool.QueueUserWorkItem(delegate { RegistrationTimedOut(tn); });
};
m_sipTransport.SendSIPReliable(regTransaction);
}
}
}
catch (Exception excp)
{
logger.Error("Exception SendInitialRegister to " + m_registrarHost + ". " + excp.Message);
if (RegistrationFailed != null)
{
RegistrationFailed(m_sipAccountAOR,
"Exception SendInitialRegister to " + m_registrarHost + ". " + excp.Message);
}
}
}