public void Redirect(SIPResponseStatusCodesEnum redirectCode, SIPURI redirectURI, string[] customHeaders) { try { if (m_uasTransaction.TransactionFinalResponse == null) { SIPResponse redirectResponse = SIPResponse.GetResponse(m_uasTransaction.TransactionRequest, redirectCode, null); redirectResponse.Header.Contact = SIPContactHeader.CreateSIPContactList(redirectURI); if (customHeaders != null && customHeaders.Length > 0) { foreach (string header in customHeaders) { redirectResponse.Header.UnknownHeaders.Add(header); } } m_uasTransaction.SendFinalResponse(redirectResponse); } } catch (Exception excp) { logger.LogError("Exception SIPServerUserAgent Redirect. " + excp.Message); } }
public void Redirect(SIPResponseStatusCodesEnum redirectCode, SIPURI redirectURI) { try { if (m_uasTransaction.TransactionFinalResponse == null) { SIPResponse redirectResponse = SIPTransport.GetResponse(m_uasTransaction.TransactionRequest, redirectCode, null); redirectResponse.Header.Contact = SIPContactHeader.CreateSIPContactList(redirectURI); m_uasTransaction.SendFinalResponse(redirectResponse); } } catch (Exception excp) { logger.Error("Exception SIPServerUserAgent Redirect. " + excp.Message); } }
public void ProcessNotifyRequest(SIPRequest sipRequest) { try { // Hack to work around MWI request from callcentric not having a trailing CRLF and breaking some softphones like the Bria. if (sipRequest.Header.Event == MWI_EVENT_TYPE && sipRequest.Body.NotNullOrBlank() && sipRequest.Body.Substring(sipRequest.Body.Length - 2) != m_crlf) { sipRequest.Body += m_crlf; } string fromURI = (sipRequest.Header.From != null && sipRequest.Header.From.FromURI != null) ? sipRequest.Header.From.FromURI.ToString() : "unknown"; string domain = GetCanonicalDomain_External(sipRequest.URI.Host, true); if (domain != null) { SIPAccountAsset sipAccount = GetSIPAccount_External(s => s.SIPUsername == sipRequest.URI.User && s.SIPDomain == domain); if (sipAccount != null) { List <SIPRegistrarBinding> bindings = GetSIPAccountBindings_External(b => b.SIPAccountId == sipAccount.Id, null, 0, MAX_FORWARD_BINDINGS); if (bindings != null) { foreach (SIPRegistrarBinding binding in bindings) { SIPURI dstURI = binding.MangledContactSIPURI; SIPEndPoint localSIPEndPoint = (m_outboundProxy != null) ? m_sipTransport.GetDefaultSIPEndPoint(m_outboundProxy.Protocol) : m_sipTransport.GetDefaultSIPEndPoint(dstURI.Protocol); SIPEndPoint dstSIPEndPoint = null; // If the outbound proxy is a loopback address, as it will normally be for local deployments, then it cannot be overriden. if (m_outboundProxy != null && IPAddress.IsLoopback(m_outboundProxy.Address)) { dstSIPEndPoint = m_outboundProxy; } else if (binding.ProxySIPEndPoint != null) { // If the binding has a specific proxy end point sent then the request needs to be forwarded to the proxy's default end point for it to take care of. dstSIPEndPoint = new SIPEndPoint(SIPProtocolsEnum.udp, new IPEndPoint(binding.ProxySIPEndPoint.Address, m_defaultSIPPort)); } else if (m_outboundProxy != null) { dstSIPEndPoint = m_outboundProxy; } else { SIPDNSLookupResult lookupResult = m_sipTransport.GetURIEndPoint(dstURI, false); if (lookupResult.LookupError != null) { Log_External(new SIPMonitorConsoleEvent(SIPMonitorServerTypesEnum.Notifier, SIPMonitorEventTypesEnum.MWI, "A NOTIFY request from " + fromURI + " was not forwarded due to DNS failure for " + dstURI.Host + ", " + lookupResult.LookupError + ".", sipAccount.Owner)); } else { dstSIPEndPoint = lookupResult.GetSIPEndPoint(); } } if (dstSIPEndPoint != null) { // Rather than create a brand new request copy the received one and modify the headers that need to be unique. SIPRequest notifyRequest = sipRequest.Copy(); notifyRequest.URI = dstURI; notifyRequest.Header.Contact = SIPContactHeader.CreateSIPContactList(new SIPURI(dstURI.Scheme, localSIPEndPoint)); notifyRequest.Header.To = new SIPToHeader(null, dstURI, null); notifyRequest.Header.CallId = CallProperties.CreateNewCallId(); SIPViaHeader viaHeader = new SIPViaHeader(localSIPEndPoint, CallProperties.CreateBranchId()); notifyRequest.Header.Vias = new SIPViaSet(); notifyRequest.Header.Vias.PushViaHeader(viaHeader); // If the binding has a proxy socket defined set the header to ask the upstream proxy to use it. if (binding.ProxySIPEndPoint != null) { notifyRequest.Header.ProxySendFrom = binding.ProxySIPEndPoint.ToString(); // If the binding has a specific proxy end point sent then the request needs to be forwarded to the proxy's default end point for it to take care of. dstSIPEndPoint = new SIPEndPoint(SIPProtocolsEnum.udp, new IPEndPoint(binding.ProxySIPEndPoint.Address, m_defaultSIPPort)); } Log_External(new SIPMonitorConsoleEvent(SIPMonitorServerTypesEnum.Notifier, SIPMonitorEventTypesEnum.MWI, "Forwarding NOTIFY request from " + fromURI + " to registered binding at " + dstURI.ToString() + ", proxy " + dstSIPEndPoint.ToString() + ".", sipAccount.Owner)); SIPNonInviteTransaction notifyTransaction = m_sipTransport.CreateNonInviteTransaction(notifyRequest, dstSIPEndPoint, localSIPEndPoint, dstSIPEndPoint); notifyTransaction.SendReliableRequest(); } else { Log_External(new SIPMonitorConsoleEvent(SIPMonitorServerTypesEnum.Notifier, SIPMonitorEventTypesEnum.MWI, "A NOTIFY request from " + fromURI + " was not forwarded as no destination end point was resolved.", sipAccount.Owner)); } } // Send OK response to server. SIPResponse okResponse = SIPTransport.GetResponse(sipRequest, SIPResponseStatusCodesEnum.Ok, null); m_sipTransport.SendResponse(okResponse); } else { // Send unavailable response to server. Log_External(new SIPMonitorConsoleEvent(SIPMonitorServerTypesEnum.Notifier, SIPMonitorEventTypesEnum.MWI, "NOTIFY request from " + fromURI + " for " + sipAccount.SIPUsername + "@" + sipAccount.SIPDomain + " but no bindings available, responding with temporarily unavailable.", sipAccount.Owner)); SIPResponse notAvailableResponse = SIPTransport.GetResponse(sipRequest, SIPResponseStatusCodesEnum.TemporarilyUnavailable, null); m_sipTransport.SendResponse(notAvailableResponse); } } else { // Send Not found response to server. Log_External(new SIPMonitorConsoleEvent(SIPMonitorServerTypesEnum.Notifier, SIPMonitorEventTypesEnum.MWI, "NOTIFY request from " + fromURI + " for " + sipRequest.URI.ToString() + " but no matching SIP account, responding with not found.", null)); SIPResponse notFoundResponse = SIPTransport.GetResponse(sipRequest, SIPResponseStatusCodesEnum.NotFound, null); m_sipTransport.SendResponse(notFoundResponse); } } else { // Send Not Serviced response to server. Log_External(new SIPMonitorConsoleEvent(SIPMonitorServerTypesEnum.Notifier, SIPMonitorEventTypesEnum.MWI, "NOTIFY request from " + fromURI + " for a non-serviced domain responding with not found.", null)); SIPResponse notServicedResponse = SIPTransport.GetResponse(sipRequest, SIPResponseStatusCodesEnum.NotFound, "Domain not serviced"); m_sipTransport.SendResponse(notServicedResponse); } } catch (Exception excp) { logger.Error("Exception SIPNotifyManager ProcessNotifyRequest. " + excp.Message); } }