/// <summary>
/// 处理注册请求消息
/// </summary>
/// <param name="localSIPEndPoint">本地终结点</param>
/// <param name="remoteEndPoint">远程终结点</param>
/// <param name="registerRequest">注册请求</param>
private void ProcessRegisterReqMessage(SIPEndPoint localSIPEndPoint, SIPEndPoint remoteEndPoint, SIPRequest registerRequest)
{
SIPSorceryPerformanceMonitor.IncrementCounter(SIPSorceryPerformanceMonitor.REGISTRAR_REGISTRATION_REQUESTS_PER_SECOND);
int requestedExpiry = GetRequestedExpiry(registerRequest);
if (registerRequest.Header.To == null)
{
logger.Debug("Bad register request, no To header from " + remoteEndPoint + ".");
SIPResponse badReqResponse = SIPTransport.GetResponse(registerRequest, SIPResponseStatusCodesEnum.BadRequest, "Missing To header");
m_sipTransport.SendResponse(badReqResponse);
}
else if (registerRequest.Header.To.ToURI.User.IsNullOrBlank())
{
logger.Debug("Bad register request, no To user from " + remoteEndPoint + ".");
SIPResponse badReqResponse = SIPTransport.GetResponse(registerRequest, SIPResponseStatusCodesEnum.BadRequest, "Missing username on To header");
m_sipTransport.SendResponse(badReqResponse);
}
else if (registerRequest.Header.Contact == null || registerRequest.Header.Contact.Count == 0)
{
logger.Debug("Bad register request, no Contact header from " + remoteEndPoint + ".");
SIPResponse badReqResponse = SIPTransport.GetResponse(registerRequest, SIPResponseStatusCodesEnum.BadRequest, "Missing Contact header");
m_sipTransport.SendResponse(badReqResponse);
}
else if (requestedExpiry > 0 && requestedExpiry < MINIMUM_EXPIRY_SECONDS)
{
logger.Debug("Bad register request, no expiry of " + requestedExpiry + " to small from " + remoteEndPoint + ".");
SIPResponse tooFrequentResponse = GetErrorResponse(registerRequest, SIPResponseStatusCodesEnum.IntervalTooBrief, null);
tooFrequentResponse.Header.MinExpires = MINIMUM_EXPIRY_SECONDS;
m_sipTransport.SendResponse(tooFrequentResponse);
}
else
{
if (m_registerQueue.Count < MAX_REGISTER_QUEUE_SIZE)
{
SIPNonInviteTransaction registrarTransaction = m_sipTransport.CreateNonInviteTransaction(registerRequest, remoteEndPoint, localSIPEndPoint, null);
lock (m_registerQueue)
{
m_registerQueue.Enqueue(registrarTransaction);
}
FireProxyLogEvent(new SIPMonitorConsoleEvent(SIPMonitorServerTypesEnum.Registrar, SIPMonitorEventTypesEnum.BindingInProgress, "Register queued for " + registerRequest.Header.To.ToURI.ToString() + ".", null));
}
else
{
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");
m_sipTransport.SendResponse(overloadedResponse);
}
m_registerARE.Set();
}
}
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);
}
}
