private void DoSubscribe(SIPNonInviteTransaction subTx)
{
SIPRequest req = subTx.TransactionRequest;
string user = req.Header.From.FromURI.User;
string domain = req.Header.From.FromURI.HostAddress;
string canonicalDomain = m_sipDomainManager.GetCanonicalDomain(domain);
if (canonicalDomain == null)
{
Logger.LogWarning($"Subscribe Register request for {req.Header.From.FromURI.Host} rejected as no matching domain found.");
SIPResponse noDomainResponse = SIPResponse.GetResponse(req, SIPResponseStatusCodesEnum.Forbidden, "Domain not serviced");
subTx.SendResponse(noDomainResponse);
}
else
{
SIPAccount sipAccount = m_sipAccountsDataLayer.GetSIPAccount(user, canonicalDomain).Result;
if (sipAccount == null)
{
Logger.LogWarning($"SubscriberCore SIP account {user}@{canonicalDomain} does not exist.");
SIPResponse forbiddenResponse = SIPResponse.GetResponse(req, SIPResponseStatusCodesEnum.Forbidden, null);
subTx.SendResponse(forbiddenResponse);
}
else
{
SIPRequestAuthenticationResult authenticationResult = SIPRequestAuthenticator.AuthenticateSIPRequest(req.LocalSIPEndPoint, req.RemoteSIPEndPoint, req, sipAccount);
if (!authenticationResult.Authenticated)
{
// 401 Response with a fresh nonce needs to be sent.
SIPResponse authReqdResponse = SIPResponse.GetResponse(req, authenticationResult.ErrorResponse, null);
authReqdResponse.Header.AuthenticationHeader = authenticationResult.AuthenticationRequiredHeader;
subTx.SendResponse(authReqdResponse);
if (authenticationResult.ErrorResponse == SIPResponseStatusCodesEnum.Forbidden)
{
Logger.LogWarning($"Forbidden {sipAccount.AOR} does not exist, received from {req.RemoteSIPEndPoint}, user agent {req.Header.UserAgent}.");
}
}
else
{
SIPResponse okResponse = SIPResponse.GetResponse(req, SIPResponseStatusCodesEnum.Ok, null);
subTx.SendResponse(okResponse);
Logger.LogDebug($"Subscription request for {user}@{domain} was successful.");
// Give the subscribe response time to be sent.
Thread.Sleep(500);
if (req.Header.Expires > 0)
{
SendInitialNotification(req, sipAccount);
}
}
}
}
}
private RegisterResultEnum Register(SIPNonInviteTransaction registerTransaction)
{
try
{
SIPRequest sipRequest = registerTransaction.TransactionRequest;
SIPURI registerURI = sipRequest.URI;
SIPToHeader toHeader = sipRequest.Header.To;
string toUser = toHeader.ToURI.User;
string canonicalDomain = m_sipDomainManager.GetCanonicalDomain(toHeader.ToURI.HostAddress);
int requestedExpiry = GetRequestedExpiry(sipRequest);
if (canonicalDomain == null)
{
Logger.LogWarning($"Register request for {toHeader.ToURI.HostAddress} rejected as no matching domain found.");
SIPResponse noDomainResponse = SIPResponse.GetResponse(sipRequest, SIPResponseStatusCodesEnum.Forbidden, "Domain not serviced");
registerTransaction.SendResponse(noDomainResponse);
return(RegisterResultEnum.DomainNotServiced);
}
else
{
SIPAccount sipAccount = m_sipAccountsDataLayer.GetSIPAccount(toUser, canonicalDomain).Result;
if (sipAccount == null)
{
Logger.LogWarning($"RegistrarCore SIP account {toUser}@{canonicalDomain} does not exist.");
SIPResponse forbiddenResponse = SIPResponse.GetResponse(sipRequest, SIPResponseStatusCodesEnum.Forbidden, null);
registerTransaction.SendResponse(forbiddenResponse);
return(RegisterResultEnum.Forbidden);
}
else
{
SIPRequestAuthenticationResult authenticationResult = SIPRequestAuthenticator.AuthenticateSIPRequest(
registerTransaction.TransactionRequest.LocalSIPEndPoint,
registerTransaction.TransactionRequest.RemoteSIPEndPoint,
sipRequest,
sipAccount.ToSIPAccountModel());
if (!authenticationResult.Authenticated)
{
// 401 Response with a fresh nonce needs to be sent.
SIPResponse authReqdResponse = SIPResponse.GetResponse(sipRequest, authenticationResult.ErrorResponse, null);
authReqdResponse.Header.AuthenticationHeader = authenticationResult.AuthenticationRequiredHeader;
registerTransaction.SendResponse(authReqdResponse);
if (authenticationResult.ErrorResponse == SIPResponseStatusCodesEnum.Forbidden)
{
Logger.LogWarning($"Forbidden {sipAccount.AOR} does not exist, {sipRequest.Header.ProxyReceivedFrom}, {sipRequest.Header.UserAgent}.");
return(RegisterResultEnum.Forbidden);
}
else
{
return(RegisterResultEnum.AuthenticationRequired);
}
}
else
{
if (sipRequest.Header.Contact == null || sipRequest.Header.Contact.Count == 0)
{
// No contacts header to update bindings with, return a list of the current bindings.
//List<SIPRegistrarBinding> bindings = m_registrarBindingsManager.GetBindings(sipAccount.ID);
List <SIPRegistrarBinding> bindings = m_sipRegistrarBindingDataLayer.GetForSIPAccount(new Guid(sipAccount.ID)).ToList();
//List<SIPContactHeader> contactsList = m_registrarBindingsManager.GetContactHeader(); // registration.GetContactHeader(true, null);
if (bindings != null)
{
sipRequest.Header.Contact = GetContactHeader(bindings);
}
SIPResponse okResponse = GetOkResponse(sipRequest);
registerTransaction.SendResponse(okResponse);
Logger.LogDebug($"Empty registration request successful for {sipAccount.AOR} from {sipRequest.Header.ProxyReceivedFrom}.");
}
else
{
SIPEndPoint uacRemoteEndPoint = SIPEndPoint.TryParse(sipRequest.Header.ProxyReceivedFrom) ?? registerTransaction.TransactionRequest.RemoteSIPEndPoint;
SIPEndPoint proxySIPEndPoint = SIPEndPoint.TryParse(sipRequest.Header.ProxyReceivedOn);
SIPEndPoint registrarEndPoint = registerTransaction.TransactionRequest.LocalSIPEndPoint;
SIPResponseStatusCodesEnum updateResult = SIPResponseStatusCodesEnum.Ok;
string updateMessage = null;
DateTime startTime = DateTime.Now;
List <SIPRegistrarBinding> bindingsList = m_registrarBindingsManager.UpdateBindings(
sipAccount,
proxySIPEndPoint,
uacRemoteEndPoint,
registrarEndPoint,
sipRequest.Header.Contact,
sipRequest.Header.CallId,
sipRequest.Header.CSeq,
sipRequest.Header.Expires,
sipRequest.Header.UserAgent,
out updateResult,
out updateMessage);
TimeSpan duration = DateTime.Now.Subtract(startTime);
Logger.LogDebug($"Binding update time for {sipAccount.AOR} took {duration.TotalMilliseconds}ms.");
if (updateResult == SIPResponseStatusCodesEnum.Ok)
{
string proxySocketStr = (proxySIPEndPoint != null) ? " (proxy=" + proxySIPEndPoint.ToString() + ")" : null;
Logger.LogDebug($"Bindings for {sipAccount.AOR}:");
for (int i = 0; i < bindingsList.Count(); i++)
{
var binding = bindingsList[i];
Logger.LogDebug($" {i}: {binding.ContactURI}, expiry {binding.Expiry}s.");
}
sipRequest.Header.Contact = GetContactHeader(bindingsList);
SIPResponse okResponse = GetOkResponse(sipRequest);
registerTransaction.SendResponse(okResponse);
}
else
{
// The binding update failed even though the REGISTER request was authorised. This is probably due to a
// temporary problem connecting to the bindings data store. Send Ok but set the binding expiry to the minimum so
// that the UA will try again as soon as possible.
Logger.LogError($"Registration request successful but binding update failed for {sipAccount.AOR} from {registerTransaction.TransactionRequest.RemoteSIPEndPoint}.");
sipRequest.Header.Contact[0].Expires = m_minimumBindingExpiry;
SIPResponse okResponse = GetOkResponse(sipRequest);
registerTransaction.SendResponse(okResponse);
}
}
return(RegisterResultEnum.Authenticated);
}
}
}
}
catch (Exception excp)
{
string regErrorMessage = "Exception registrarcore registering. " + excp.Message + "\r\n" + registerTransaction.TransactionRequest.ToString();
Logger.LogError(regErrorMessage);
SIPResponse errorResponse = SIPResponse.GetResponse(registerTransaction.TransactionRequest, SIPResponseStatusCodesEnum.InternalServerError, null);
registerTransaction.SendResponse(errorResponse);
return(RegisterResultEnum.Error);
}
}
