public void Start()
{
try
{
logger.Debug("SIP Proxy daemon starting...");
// Pre-flight checks.
if (!File.Exists(m_proxyRuntimeScriptPath))
{
throw new ApplicationException("The proxy cannot start without a runtime script. Path " + m_proxyRuntimeScriptPath + " could not be loaded.");
}
else if (m_sipProxySocketsNode == null || m_sipProxySocketsNode.ChildNodes.Count == 0)
{
throw new ApplicationException("The proxy cannot start without at least one socket specified to listen on, please check config file.");
}
// Send events from this process to the monitoring socket.
if (m_monitorPort != 0)
{
// Events will be sent by the monitor channel to the loopback interface and this port.
m_monitorEventWriter = new SIPMonitorEventWriter(m_monitorPort);
logger.Debug(" SIP Proxy monitor sender initialised for 127.0.0.1:" + m_monitorPort + ".");
}
// Configure the SIP transport layer.
m_sipTransport = new SIPTransport(SIPDNSManager.ResolveSIPService, null, false);
SIPDNSManager.SIPMonitorLogEvent = FireSIPMonitorEvent;
m_sipTransport.PerformanceMonitorPrefix = SIPSorceryPerformanceMonitor.PROXY_PREFIX;
List<SIPChannel> sipChannels = SIPTransportConfig.ParseSIPChannelsNode(m_sipProxySocketsNode);
m_sipTransport.AddSIPChannel(sipChannels);
// Create the SIP stateless proxy core.
m_statelessProxyCore = new SIPProxyCore(FireSIPMonitorEvent, m_sipTransport, m_proxyRuntimeScriptPath, m_appServerEndPointsPath);
if (!m_publicIPAddressStr.IsNullOrBlank())
{
PublicIPAddress = IPAddress.Parse(m_publicIPAddressStr);
m_statelessProxyCore.PublicIPAddress = PublicIPAddress;
}
else if (!m_stunServerHostname.IsNullOrBlank())
{
// If a STUN server hostname has been specified start the STUN client thread.
ThreadPool.QueueUserWorkItem(delegate { StartSTUNClient(); });
}
// Logging.
m_sipTransport.SIPRequestInTraceEvent += LogSIPRequestIn;
m_sipTransport.SIPRequestOutTraceEvent += LogSIPRequestOut;
m_sipTransport.SIPResponseInTraceEvent += LogSIPResponseIn;
m_sipTransport.SIPResponseOutTraceEvent += LogSIPResponseOut;
m_sipTransport.SIPBadRequestInTraceEvent += LogSIPBadRequestIn;
m_sipTransport.SIPBadResponseInTraceEvent += LogSIPBadResponseIn;
if (m_natKeepAliveSocket != null)
{
m_natKeepAliveRelay = new NATKeepAliveRelay(m_sipTransport, m_natKeepAliveSocket, FireSIPMonitorEvent);
}
// Allow silverlight clients to connect to the proxy server's SIP sockets.
m_silverlightPolicyServer = new SilverlightPolicyServer();
logger.Debug("SIP Proxy daemon successfully started.");
}
catch (Exception excp)
{
logger.Error("Exception SIPProxyDaemon Start. " + excp.Message);
}
}
private void StartNATKeepAliveRelay(SIPTransport sipTransport, IPEndPoint natKeepAliveSocket, SIPMonitorLogDelegate logDelegate)
{
if (natKeepAliveSocket != null)
{
m_natKeepAliveRelay = new NATKeepAliveRelay(sipTransport, natKeepAliveSocket, logDelegate);
logger.Debug("NAT keep-alive relay created on " + natKeepAliveSocket + ".");
}
else
{
logger.Warn("The NATKeepAliveRelay cannot be started with an empty socket.");
}
}
