C# SIPRequest.Copy方法代码示例

        private SIPRequest GetAuthenticatedRegistrationRequest(SIPRequest registerRequest, SIPResponse sipResponse)
        {
            try
            {
                SIPAuthorisationDigest authRequest = sipResponse.Header.AuthenticationHeader.SIPDigest;
                m_lastServerNonce = authRequest.Nonce;
                string username = (m_authUsername != null) ? m_authUsername : m_sipAccountAOR.User;
                authRequest.SetCredentials(username, m_password, registerRequest.URI.ToString(), SIPMethodsEnum.REGISTER.ToString());

                SIPRequest regRequest = registerRequest.Copy();
                regRequest.LocalSIPEndPoint = registerRequest.LocalSIPEndPoint;
                regRequest.Header.Vias.TopViaHeader.Branch = CallProperties.CreateBranchId();
                regRequest.Header.From.FromTag = CallProperties.CreateNewTag();
                regRequest.Header.To.ToTag = null;
                regRequest.Header.CSeq = ++m_cseq;

                regRequest.Header.AuthenticationHeader = new SIPAuthenticationHeader(authRequest);
                regRequest.Header.AuthenticationHeader.SIPDigest.Response = authRequest.Digest;

                //if (RequestSwitchboardToken)
                //{
                //    regRequest.Header.SwitchboardTokenRequest = m_expiry;
                //}

                return regRequest;
            }
            catch (Exception excp)
            {
                logger.Error("Exception GetAuthenticatedRegistrationRequest. " + excp.Message);
                throw excp;
            }
        }

        private SIPRequest GetAuthenticatedRegistrationRequest(SIPProviderBinding binding, SIPRequest registerRequest, SIPResponse sipResponse)
        {
            try
            {
                SIPAuthorisationDigest authRequest = sipResponse.Header.AuthenticationHeader.SIPDigest;
                authRequest.SetCredentials(binding.ProviderAuthUsername, binding.ProviderPassword, registerRequest.URI.ToString(), SIPMethodsEnum.REGISTER.ToString());

                SIPRequest regRequest = registerRequest.Copy();
                regRequest.LocalSIPEndPoint = registerRequest.LocalSIPEndPoint;
                regRequest.Header.Vias.TopViaHeader.Branch = CallProperties.CreateBranchId();
                regRequest.Header.From.FromTag = CallProperties.CreateNewTag();
                regRequest.Header.To.ToTag = null;
                regRequest.Header.CSeq = ++binding.CSeq;

                if (SIPProviderMagicJack.IsMagicJackRequest(sipResponse))
                {
                    regRequest.Header.AuthenticationHeader = SIPProviderMagicJack.GetAuthenticationHeader(sipResponse);
                }
                else
                {
                    regRequest.Header.AuthenticationHeader = new SIPAuthenticationHeader(authRequest);
                    regRequest.Header.AuthenticationHeader.SIPDigest.Response = authRequest.Digest;
                }

                return regRequest;
            }
            catch (Exception excp)
            {
                logger.Error("Exception GetAuthenticatedRegistrationRequest. " + excp.Message);
                throw excp;
            }
        }

        private SIPRequest GetAuthenticatedRequest(SIPRequest originalRequest, SIPResponse sipResponse)
        {
            try
            {
                SIPAuthorisationDigest digest = sipResponse.Header.AuthenticationHeader.SIPDigest;
                m_lastServerNonce = digest.Nonce;
                string username = (m_callDescriptor.AuthUsername != null) ? m_callDescriptor.AuthUsername : m_callDescriptor.Username;
                digest.SetCredentials(username, m_callDescriptor.Password, originalRequest.URI.ToString(), originalRequest.Method.ToString());

                SIPRequest authRequest = originalRequest.Copy();
                authRequest.LocalSIPEndPoint = originalRequest.LocalSIPEndPoint;
                authRequest.Header.Vias.TopViaHeader.Branch = CallProperties.CreateBranchId();
                authRequest.Header.From.FromTag = CallProperties.CreateNewTag();
                authRequest.Header.To.ToTag = null;
                authRequest.Header.CallId = CallProperties.CreateNewCallId();
                authRequest.Header.CSeq = originalRequest.Header.CSeq + 1;

                authRequest.Header.AuthenticationHeader = new SIPAuthenticationHeader(digest);
                authRequest.Header.AuthenticationHeader.SIPDigest.Response = digest.Digest;

                return authRequest;
            }
            catch (Exception excp)
            {
                logger.Error("Exception SIPNonInviteClientUserAgent GetAuthenticatedRequest. " + excp.Message);
                throw excp;
            }
        }

        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)
                {
                    SIPAccount 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);
                        }
                    }
//.........这里部分代码省略.........