private void Answered(SDP sdp)
{
Console.WriteLine("XMPP client call answered.");
IsUACAnswered = true;
SIPResponse okResponse = new SIPResponse(SIPResponseStatusCodesEnum.Ok, "Ok", new SIPEndPoint(new IPEndPoint(IPAddress.Loopback, 0)));
okResponse.Header.ContentType = SDP.SDP_MIME_CONTENTTYPE;
okResponse.Body = sdp.ToString();
SIPDialogue = new SIPDialogue(null, null, null, null, -1, null, null, null, Guid.NewGuid(), Owner, AdminMemberId, null, sdp.ToString());
SIPDialogue.CallDurationLimit = CallDescriptor.CallDurationLimit;
CallAnswered(this, okResponse);
}
private RegisterResultEnum Register(SIPTransaction registerTransaction)
{
try
{
SIPRequest sipRequest = registerTransaction.TransactionRequest;
SIPURI registerURI = sipRequest.URI;
SIPToHeader toHeader = sipRequest.Header.To;
string toUser = toHeader.ToURI.User;
string canonicalDomain = toHeader.ToURI.Host;
int requestedExpiry = GetRequestedExpiry(sipRequest);
if (canonicalDomain == null)
{
SIPResponse noDomainResponse = GetErrorResponse(sipRequest, SIPResponseStatusCodesEnum.Forbidden,
"Domain not serviced");
registerTransaction.SendFinalResponse(noDomainResponse);
return(RegisterResultEnum.DomainNotServiced);
}
SIPAccount sipAccount = new SIPAccount
{
Id = Guid.NewGuid(),
Owner = "admin",
SIPUsername = toUser,
SIPDomain = canonicalDomain
};
SIPRequestAuthenticationResult authenticationResult =
_sipRequestAuthenticator_External?.Invoke(registerTransaction.LocalSIPEndPoint,
registerTransaction.RemoteEndPoint, sipRequest, sipAccount);
if (!_needAuthentication)
{
SIPResponse okRes = GetOkResponse(sipRequest);
registerTransaction.SendFinalResponse(okRes);
if (requestedExpiry > 0)
{
CacheDeviceItem(sipRequest);
RegisterReceived?.Invoke(sipRequest, _localSipAccount);
}
if (requestedExpiry == 0)
{
RemoveDeviceItem(sipRequest);
UnRegisterReceived?.Invoke(sipRequest, _localSipAccount);
}
return(RegisterResultEnum.AuthenticationRequired);
}
if (!authenticationResult.Authenticated)
{
// 401 Response with a fresh nonce needs to be sent.
SIPResponse authReqdResponse =
SIPTransport.GetResponse(sipRequest, authenticationResult.ErrorResponse, null);
authReqdResponse.Header.AuthenticationHeader = authenticationResult.AuthenticationRequiredHeader;
registerTransaction.SendFinalResponse(authReqdResponse);
if (authenticationResult.ErrorResponse == SIPResponseStatusCodesEnum.Forbidden)
{
return(RegisterResultEnum.Forbidden);
}
else
{
return(RegisterResultEnum.AuthenticationRequired);
}
}
else
{
if (sipRequest.Header.Contact == null || sipRequest.Header.Contact.Count == 0)
{
SIPResponse okResponse = GetOkResponse(sipRequest);
registerTransaction.SendFinalResponse(okResponse);
if (requestedExpiry > 0)
{
CacheDeviceItem(sipRequest);
RegisterReceived?.Invoke(sipRequest, _localSipAccount);
}
if (requestedExpiry == 0)
{
RemoveDeviceItem(sipRequest);
UnRegisterReceived?.Invoke(sipRequest, _localSipAccount);
}
}
else
{
SIPEndPoint uacRemoteEndPoint = SIPEndPoint.TryParse(sipRequest.Header.ProxyReceivedFrom) ??
registerTransaction.RemoteEndPoint;
SIPEndPoint proxySIPEndPoint = SIPEndPoint.TryParse(sipRequest.Header.ProxyReceivedOn);
SIPEndPoint registrarEndPoint = registerTransaction.LocalSIPEndPoint;
SIPResponseStatusCodesEnum updateResult = SIPResponseStatusCodesEnum.Ok;
DateTime startTime = DateTime.Now;
TimeSpan duration = DateTime.Now.Subtract(startTime);
if (updateResult == SIPResponseStatusCodesEnum.Ok)
{
string proxySocketStr = (proxySIPEndPoint != null)
? " (proxy=" + proxySIPEndPoint.ToString() + ")"
: null;
SIPResponse okResponse = GetOkResponse(sipRequest);
registerTransaction.SendFinalResponse(okResponse);
if (requestedExpiry > 0)
{
CacheDeviceItem(sipRequest);
RegisterReceived?.Invoke(sipRequest, _localSipAccount);
}
if (requestedExpiry == 0)
{
RemoveDeviceItem(sipRequest);
UnRegisterReceived?.Invoke(sipRequest, _localSipAccount);
}
}
else
{
sipRequest.Header.Contact[0].Expires = m_minimumBindingExpiry;
SIPResponse okResponse = GetOkResponse(sipRequest);
registerTransaction.SendFinalResponse(okResponse);
}
}
return(RegisterResultEnum.Authenticated);
}
}
catch (Exception excp)
{
string regErrorMessage = "Exception registrarcore registering. ->" + excp.Message + "->" +
registerTransaction.TransactionRequest.ToString();
Logger.Logger.Error(regErrorMessage);
try
{
SIPResponse errorResponse = GetErrorResponse(registerTransaction.TransactionRequest,
SIPResponseStatusCodesEnum.InternalServerError, null);
registerTransaction.SendFinalResponse(errorResponse);
}
catch
{
}
return(RegisterResultEnum.Error);
}
}
/// <summary>
/// A ringing response has been received from the remote SIP UAS on an outgoing call.
/// </summary>
private void CallRinging(ISIPClientUserAgent uac, SIPResponse sipResponse)
{
StatusMessage(this, "Call ringing: " + sipResponse.StatusCode + " " + sipResponse.ReasonPhrase + ".");
}
/// <summary>
/// Handles responses to our re-INVITE requests.
/// </summary>
/// <param name="localSIPEndPoint">The local end point the response was received on.</param>
/// <param name="remoteEndPoint">The remote end point the response came from.</param>
/// <param name="sipTransaction">The UAS transaction the response is part of.</param>
/// <param name="sipResponse">The SIP response.</param>
private Task <SocketError> ReinviteRequestFinalResponseReceived(SIPEndPoint localSIPEndPoint, SIPEndPoint remoteEndPoint, SIPTransaction sipTransaction, SIPResponse sipResponse)
{
if (sipResponse.Status == SIPResponseStatusCodesEnum.Ok)
{
// Update the remote party's SDP.
Dialogue.RemoteSDP = sipResponse.Body;
MediaSession.setRemoteDescription(new RTCSessionDescription {
sdp = SDP.ParseSDPDescription(sipResponse.Body), type = RTCSdpType.answer
});
}
else
{
logger.LogWarning($"Re-INVITE request failed with response {sipResponse.ShortDescription}.");
}
return(Task.FromResult(SocketError.Success));
}
private void FireCallAnswered(SIPClientUserAgent uac, SIPResponse answeredResponse)
{
if (CallAnswered != null)
{
CallAnswered(uac, answeredResponse);
}
}
/// <summary>
/// The event handler for responses to the initial register request.
/// </summary>
private void ServerResponseReceived(SIPEndPoint localSIPEndPoint, SIPEndPoint remoteEndPoint, SIPTransaction sipTransaction, SIPResponse sipResponse)
{
try
{
Log_External(new SIPMonitorConsoleEvent(SIPMonitorServerTypesEnum.UserAgentClient, SIPMonitorEventTypesEnum.ContactRegisterInProgress, "Server response " + sipResponse.Status + " received for " + m_sipAccountAOR.ToString() + ".", m_owner));
if (sipResponse.Status == SIPResponseStatusCodesEnum.ProxyAuthenticationRequired || sipResponse.Status == SIPResponseStatusCodesEnum.Unauthorised)
{
if (sipResponse.Header.AuthenticationHeader != null)
{
if (m_attempts >= MAX_REGISTER_ATTEMPTS)
{
Log_External(new SIPMonitorConsoleEvent(SIPMonitorServerTypesEnum.UserAgentClient, SIPMonitorEventTypesEnum.ContactRegisterFailed, "Registration to " + m_sipAccountAOR.ToString() + " reached the maximum number of allowed attempts without a failure condition.", m_owner));
m_isRegistered = false;
if (RegistrationTemporaryFailure != null)
{
RegistrationTemporaryFailure(m_sipAccountAOR, "Registration reached the maximum number of allowed attempts.");
}
m_waitForRegistrationMRE.Set();
}
else
{
m_attempts++;
SIPRequest authenticatedRequest = GetAuthenticatedRegistrationRequest(sipTransaction.TransactionRequest, sipResponse);
SIPNonInviteTransaction regAuthTransaction = m_sipTransport.CreateNonInviteTransaction(authenticatedRequest, sipTransaction.RemoteEndPoint, localSIPEndPoint, m_outboundProxy);
regAuthTransaction.NonInviteTransactionFinalResponseReceived += (lep, rep, tn, rsp) => { ThreadPool.QueueUserWorkItem(delegate { AuthResponseReceived(lep, rep, tn, rsp); }); };
regAuthTransaction.NonInviteTransactionTimedOut += (tn) => { ThreadPool.QueueUserWorkItem(delegate { RegistrationTimedOut(tn); }); };
m_sipTransport.SendSIPReliable(regAuthTransaction);
}
}
else
{
Log_External(new SIPMonitorConsoleEvent(SIPMonitorServerTypesEnum.UserAgentClient, SIPMonitorEventTypesEnum.ContactRegisterFailed, "Registration failed with " + sipResponse.Status + " but no authentication header was supplied for " + m_sipAccountAOR.ToString() + ".", m_owner));
m_isRegistered = false;
if (RegistrationTemporaryFailure != null)
{
RegistrationTemporaryFailure(m_sipAccountAOR, "Registration failed with " + sipResponse.Status + " but no authentication header was supplied.");
}
m_waitForRegistrationMRE.Set();
}
}
else
{
if (sipResponse.Status == SIPResponseStatusCodesEnum.Ok)
{
if (m_expiry > 0)
{
m_isRegistered = true;
m_expiry = GetUpdatedExpiry(sipResponse);
//if (sipResponse.Header.SwitchboardToken != null && m_lastServerNonce != null)
//{
// SwitchboardToken = Crypto.SymmetricDecrypt(m_password, m_lastServerNonce, sipResponse.Header.SwitchboardToken);
//}
RegistrationSuccessful(m_sipAccountAOR);
}
else
{
m_isRegistered = false;
RegistrationRemoved(m_sipAccountAOR);
}
m_waitForRegistrationMRE.Set();
}
else if (sipResponse.Status == SIPResponseStatusCodesEnum.Forbidden || sipResponse.Status == SIPResponseStatusCodesEnum.NotFound)
{
// SIP account does not appear to exist.
Log_External(new SIPMonitorConsoleEvent(SIPMonitorServerTypesEnum.UserAgentClient, SIPMonitorEventTypesEnum.ContactRegisterFailed, "Registration failed with " + sipResponse.Status + " for " + m_sipAccountAOR.ToString() + ", no further registration attempts will be made.", m_owner));
string reasonPhrase = (sipResponse.ReasonPhrase.IsNullOrBlank()) ? sipResponse.Status.ToString() : sipResponse.ReasonPhrase;
if (RegistrationFailed != null)
{
RegistrationFailed(m_sipAccountAOR, "Registration failed with " + (int)sipResponse.Status + " " + reasonPhrase + ".");
}
m_exit = true;
m_waitForRegistrationMRE.Set();
}
else if (sipResponse.Status == SIPResponseStatusCodesEnum.IntervalTooBrief && m_expiry != 0)
{
m_expiry = GetUpdatedExpiryForIntervalTooBrief(sipResponse);
Log_External(new SIPMonitorConsoleEvent(SIPMonitorServerTypesEnum.UserAgentClient, SIPMonitorEventTypesEnum.ContactRegisterInProgress, "Registration for " + m_sipAccountAOR.ToString() + " had a too short expiry, updated to +" + m_expiry + " and trying again.", m_owner));
SendInitialRegister();
}
else
{
Log_External(new SIPMonitorConsoleEvent(SIPMonitorServerTypesEnum.UserAgentClient, SIPMonitorEventTypesEnum.ContactRegisterFailed, "Registration failed with " + sipResponse.Status + " for " + m_sipAccountAOR.ToString() + ".", m_owner));
m_isRegistered = false;
if (RegistrationTemporaryFailure != null)
{
RegistrationTemporaryFailure(m_sipAccountAOR, "Registration failed with " + sipResponse.Status + ".");
}
m_waitForRegistrationMRE.Set();
}
}
}
catch (Exception excp)
{
logger.Error("Exception SIPRegistrationUserAgent ServerResponseReceived (" + remoteEndPoint + "). " + excp.Message);
}
}
/// <summary>
/// The event handler for responses to the authenticated register request.
/// </summary>
private void AuthResponseReceived(SIPEndPoint localSIPEndPoint, SIPEndPoint remoteEndPoint, SIPTransaction sipTransaction, SIPResponse sipResponse)
{
string reasonPhrase = (sipResponse.ReasonPhrase.IsNullOrBlank()) ? sipResponse.Status.ToString() : sipResponse.ReasonPhrase;
Log_External(new SIPMonitorConsoleEvent(SIPMonitorServerTypesEnum.UserAgentClient, SIPMonitorEventTypesEnum.DialPlan, "Server response " + sipResponse.Status + " " + reasonPhrase + " received for authenticated " + sipTransaction.TransactionRequest.Method + " to " + m_callDescriptor.Uri + ".", m_owner));
if (ResponseReceived != null)
{
ResponseReceived(sipResponse);
}
}
static void Main(string[] args)
{
Console.WriteLine("SIPSorcery user agent server example.");
Console.WriteLine("Press h to hangup a call or ctrl-c to exit.");
EnableConsoleLogger();
IPAddress listenAddress = IPAddress.Any;
IPAddress listenIPv6Address = IPAddress.IPv6Any;
if (args != null && args.Length > 0)
{
if (!IPAddress.TryParse(args[0], out var customListenAddress))
{
Log.LogWarning($"Command line argument could not be parsed as an IP address \"{args[0]}\"");
listenAddress = IPAddress.Any;
}
else
{
if (customListenAddress.AddressFamily == AddressFamily.InterNetwork)
{
listenAddress = customListenAddress;
}
if (customListenAddress.AddressFamily == AddressFamily.InterNetworkV6)
{
listenIPv6Address = customListenAddress;
}
}
}
// Set up a default SIP transport.
var sipTransport = new SIPTransport();
var localhostCertificate = new X509Certificate2("localhost.pfx");
// IPv4 channels.
sipTransport.AddSIPChannel(new SIPUDPChannel(new IPEndPoint(listenAddress, SIP_LISTEN_PORT)));
sipTransport.AddSIPChannel(new SIPTCPChannel(new IPEndPoint(listenAddress, SIP_LISTEN_PORT)));
sipTransport.AddSIPChannel(new SIPTLSChannel(localhostCertificate, new IPEndPoint(listenAddress, SIPS_LISTEN_PORT)));
sipTransport.AddSIPChannel(new SIPWebSocketChannel(IPAddress.Any, SIP_WEBSOCKET_LISTEN_PORT));
sipTransport.AddSIPChannel(new SIPWebSocketChannel(IPAddress.Any, SIP_SECURE_WEBSOCKET_LISTEN_PORT, localhostCertificate));
// IPv6 channels.
sipTransport.AddSIPChannel(new SIPUDPChannel(new IPEndPoint(listenIPv6Address, SIP_LISTEN_PORT)));
sipTransport.AddSIPChannel(new SIPTCPChannel(new IPEndPoint(listenIPv6Address, SIP_LISTEN_PORT)));
sipTransport.AddSIPChannel(new SIPTLSChannel(localhostCertificate, new IPEndPoint(listenIPv6Address, SIPS_LISTEN_PORT)));
sipTransport.AddSIPChannel(new SIPWebSocketChannel(IPAddress.IPv6Any, SIP_WEBSOCKET_LISTEN_PORT));
sipTransport.AddSIPChannel(new SIPWebSocketChannel(IPAddress.IPv6Any, SIP_SECURE_WEBSOCKET_LISTEN_PORT, localhostCertificate));
EnableTraceLogs(sipTransport);
// To keep things a bit simpler this example only supports a single call at a time and the SIP server user agent
// acts as a singleton
SIPServerUserAgent uas = null;
CancellationTokenSource rtpCts = null; // Cancellation token to stop the RTP stream.
RTPMediaSession rtpSession = null;
// Because this is a server user agent the SIP transport must start listening for client user agents.
sipTransport.SIPTransportRequestReceived += async(SIPEndPoint localSIPEndPoint, SIPEndPoint remoteEndPoint, SIPRequest sipRequest) =>
{
try
{
if (sipRequest.Method == SIPMethodsEnum.INVITE)
{
SIPSorcery.Sys.Log.Logger.LogInformation($"Incoming call request: {localSIPEndPoint}<-{remoteEndPoint} {sipRequest.URI}.");
// Check there's a codec we support in the INVITE offer.
var offerSdp = SDP.ParseSDPDescription(sipRequest.Body);
IPEndPoint dstRtpEndPoint = SDP.GetSDPRTPEndPoint(sipRequest.Body);
string audioFile = null;
if (offerSdp.Media.Any(x => x.Media == SDPMediaTypesEnum.audio && x.HasMediaFormat((int)SDPMediaFormatsEnum.G722)))
{
Log.LogDebug($"Using G722 RTP media type and audio file {AUDIO_FILE_G722}.");
rtpSession = new RTPMediaSession(SDPMediaTypesEnum.audio, (int)SDPMediaFormatsEnum.G722, dstRtpEndPoint.AddressFamily);
audioFile = AUDIO_FILE_G722;
}
else if (offerSdp.Media.Any(x => x.Media == SDPMediaTypesEnum.audio && x.HasMediaFormat((int)SDPMediaFormatsEnum.PCMU)))
{
Log.LogDebug($"Using PCMU RTP media type and audio file {AUDIO_FILE_PCMU}.");
rtpSession = new RTPMediaSession(SDPMediaTypesEnum.audio, (int)SDPMediaFormatsEnum.PCMU, dstRtpEndPoint.AddressFamily);
audioFile = AUDIO_FILE_PCMU;
}
if (rtpSession == null)
{
// Didn't get a match on the codecs we support.
SIPResponse noMatchingCodecResponse = SIPResponse.GetResponse(sipRequest, SIPResponseStatusCodesEnum.NotAcceptableHere, null);
await sipTransport.SendResponseAsync(noMatchingCodecResponse);
}
else
{
// If there's already a call in progress hang it up. Of course this is not ideal for a real softphone or server but it
// means this example can be kept simpler.
if (uas?.IsHungup == false)
{
uas?.Hangup(false);
}
rtpCts?.Cancel();
rtpCts = new CancellationTokenSource();
UASInviteTransaction uasTransaction = new UASInviteTransaction(sipTransport, sipRequest, null);
uas = new SIPServerUserAgent(sipTransport, null, null, null, SIPCallDirection.In, null, null, null, uasTransaction);
uas.CallCancelled += (uasAgent) =>
{
rtpCts?.Cancel();
rtpSession.CloseSession(null);
};
rtpSession.OnRtpClosed += (reason) => uas?.Hangup(false);
uas.Progress(SIPResponseStatusCodesEnum.Trying, null, null, null, null);
uas.Progress(SIPResponseStatusCodesEnum.Ringing, null, null, null, null);
// The RTP socket is listening on IPAddress.Any but the IP address placed into the SDP needs to be one the caller can reach.
IPAddress rtpAddress = NetServices.GetLocalAddressForRemote(dstRtpEndPoint.Address);
// Only set the remote RTP end point if there hasn't already been a packet received on it.
if (rtpSession.DestinationEndPoint == null)
{
rtpSession.SetRemoteSDP(SDP.ParseSDPDescription(sipRequest.Body));
Log.LogDebug($"Remote RTP socket {rtpSession.DestinationEndPoint}.");
}
rtpSession.SetRemoteSDP(SDP.ParseSDPDescription(sipRequest.Body));
_ = Task.Run(() => SendRtp(rtpSession, dstRtpEndPoint, audioFile, rtpCts))
.ContinueWith(_ =>
{
if (uas?.IsHungup == false)
{
uas?.Hangup(false);
rtpSession?.CloseSession(null);
}
});
uas.Answer(SDP.SDP_MIME_CONTENTTYPE, rtpSession.GetSDP(rtpAddress).ToString(), null, SIPDialogueTransferModesEnum.NotAllowed);
}
}
else if (sipRequest.Method == SIPMethodsEnum.BYE)
{
SIPSorcery.Sys.Log.Logger.LogInformation("Call hungup.");
SIPResponse byeResponse = SIPResponse.GetResponse(sipRequest, SIPResponseStatusCodesEnum.Ok, null);
await sipTransport.SendResponseAsync(byeResponse);
uas?.Hangup(true);
rtpSession?.CloseSession(null);
rtpCts?.Cancel();
}
else if (sipRequest.Method == SIPMethodsEnum.SUBSCRIBE)
{
SIPResponse notAllowededResponse = SIPResponse.GetResponse(sipRequest, SIPResponseStatusCodesEnum.MethodNotAllowed, null);
await sipTransport.SendResponseAsync(notAllowededResponse);
}
else if (sipRequest.Method == SIPMethodsEnum.OPTIONS || sipRequest.Method == SIPMethodsEnum.REGISTER)
{
SIPResponse optionsResponse = SIPResponse.GetResponse(sipRequest, SIPResponseStatusCodesEnum.Ok, null);
await sipTransport.SendResponseAsync(optionsResponse);
}
}
catch (Exception reqExcp)
{
SIPSorcery.Sys.Log.Logger.LogWarning($"Exception handling {sipRequest.Method}. {reqExcp.Message}");
}
};
ManualResetEvent exitMre = new ManualResetEvent(false);
Console.CancelKeyPress += delegate(object sender, ConsoleCancelEventArgs e)
{
e.Cancel = true;
SIPSorcery.Sys.Log.Logger.LogInformation("Exiting...");
Hangup(uas).Wait();
rtpSession?.CloseSession(null);
rtpCts?.Cancel();
if (sipTransport != null)
{
SIPSorcery.Sys.Log.Logger.LogInformation("Shutting down SIP transport...");
sipTransport.Shutdown();
}
exitMre.Set();
};
// Task to handle user key presses.
Task.Run(() =>
{
try
{
while (!exitMre.WaitOne(0))
{
var keyProps = Console.ReadKey();
if (keyProps.KeyChar == 'h' || keyProps.KeyChar == 'q')
{
Console.WriteLine();
Console.WriteLine("Hangup requested by user...");
Hangup(uas).Wait();
rtpSession?.CloseSession(null);
rtpCts?.Cancel();
}
if (keyProps.KeyChar == 'q')
{
SIPSorcery.Sys.Log.Logger.LogInformation("Quitting...");
if (sipTransport != null)
{
SIPSorcery.Sys.Log.Logger.LogInformation("Shutting down SIP transport...");
sipTransport.Shutdown();
}
exitMre.Set();
}
}
}
catch (Exception excp)
{
SIPSorcery.Sys.Log.Logger.LogError($"Exception Key Press listener. {excp.Message}.");
}
});
exitMre.WaitOne();
}
/*[OperationContract]
public List<SIPRegistrationAgentRecord> GetRegistrationAgentRegistrations(string owner)
{
try
{
return m_regAgent.GetOwnerRegistrations(owner);
}
catch (Exception excp)
{
logger.Error("Exception GetRegistrationAgentRegistrations. " + excp.Message);
throw excp;
}
}
[OperationContract]
public void RemoveRegistrationAgentContact(Guid registrationId, string contactToRemove)
{
try
{
logger.Debug("RemoveRegistrarContact webservice called for " + registrationId + " and " + contactToRemove + ".");
SIPRegistrationAgentRecord registration = m_regAgent.Get(registrationId);
if (registration != null)
{
// Look through the current contacts to try and find one to match this contact.
foreach (SIPContactHeader contact in registration.ContactsList)
{
logger.Debug("Comparing: " + contact.ContactURI.ToString() + " to " + contactToRemove);
if (contactToRemove == null || contact.ContactURI.ToString() == contactToRemove)
{
logger.Debug("Attempting removal of registrar contact " + contact.ContactURI.ToString() + ".");
m_regAgent.SendContactRemovalRequest(registrationId, contact.ContactURI);
}
}
}
else
{
logger.Warn("Could not find the registration record for " + registrationId + " in RemoveSIPContact.");
}
}
catch (Exception excp)
{
logger.Error("Exception RemoveRegistrarContact. " + excp.Message);
throw excp;
}
}
[OperationContract]
public void RefreshRegistrationAgentContact(Guid registrationId)
{
try
{
logger.Debug("RefreshRegistrationView webservice called for " + registrationId + ".");
UserRegistration registration = m_regAgent.Get(registrationId);
if (registration != null)
{
m_regAgent.SendEmptyRegistrationRequest(registrationId);
}
else
{
logger.Warn("Could not find the registration record for " + registrationId + " in RefreshRegistrationView.");
}
}
catch (Exception excp)
{
logger.Error("Exception RefreshRegistrationView. " + excp.Message);
throw excp;
}
}*/
/// <summary>
/// Send a Message Waiting Indicator request to the specified user agent URI. If setMWI is true the number of messages indicated will
/// be one otherwise 0.
/// </summary>
/*[OperationContract]
public void SendMWIRequest(string userAgentURI, bool setMWI, string username)
{
try
{
logger.Debug("Attempting SendMWIRequest for " + userAgentURI + " as " + setMWI + ".");
SIPURI clientURI = SIPURI.ParseSIPURI(userAgentURI);
SIPRequest mwiRequest = SIPNotificationAgent.GetNotifyRequest(m_sipTransport.GetTransportContact(null), null, clientURI, username, setMWI);
SIPNonInviteTransaction mwiTransaction = m_sipTransport.CreateNonInviteTransaction(mwiRequest, clientURI.GetURIEndPoint(), m_sipTransport.GetTransportContact(null), SIPProtocolsEnum.UDP);
mwiTransaction.NonInviteTransactionFinalResponseReceived += new SIPTransactionResponseReceivedDelegate(MWIFinalResponseReceived);
FireProxyLogEvent(new ProxyMonitorEvent(ProxyServerTypesEnum.StatefulProxy, ProxyEventTypesEnum.MWI, "Sending " + setMWI + " mwi to " + SIPURI.ParseSIPURI(userAgentURI).CanonicalAddress, username));
m_sipTransport.SendRequest(mwiRequest, SIPProtocolsEnum.UDP);
}
catch (Exception excp)
{
logger.Error("Exception SendMWIRequest. " + excp.Message + ".");
}
}*/
/*private void MWIFinalResponseReceived(IPEndPoint localEndPoint, IPEndPoint remoteEndPoint, SIPTransaction sipTransaction, SIPResponse sipResponse)
{
try
{
string username = sipResponse.Header.From.FromURI.User;
logger.Debug("MWI response received from " + IPSocket.GetSocketString(remoteEndPoint) + " " + sipResponse.StatusCode + " " + sipResponse.ReasonPhrase + " for " + username + ".");
FireProxyLogEvent(new ProxyMonitorEvent(ProxyServerTypesEnum.StatefulProxy, ProxyEventTypesEnum.MWI, "MWI response received from " + IPSocket.GetSocketString(remoteEndPoint) + " " + sipResponse.StatusCode + " " + sipResponse.ReasonPhrase, username));
}
catch (Exception excp)
{
logger.Error("Exception MWIFinalResponseReceived. " + excp.Message);
}
}*/
/// <summary>
/// Send a Message Waiting Indicator request to the specified user agent URI. If setMWI is true the number of messages indicated will
/// be one otherwise 0.
/// </summary>
/*[OperationContract]
public void SendInviteRequest(string userAgentURI, string callerIdName, string callerIdUser, string username)
{
try
{
logger.Debug("Attempting SendInviteRequest for " + userAgentURI + " as " + callerIdName + " and " + callerIdUser + ".");
SIPURI clientURI = SIPURI.ParseSIPURI(userAgentURI);
SIPRequest inviteRequest = GetInviteRequest(clientURI, callerIdName, callerIdUser, SERVER_STRING);
UACInviteTransaction inviteTransaction = m_sipTransport.CreateUACTransaction(inviteRequest, clientURI.GetURIEndPoint(), m_sipTransport.GetTransportContact(null), SIPProtocolsEnum.UDP);
inviteTransaction.UACInviteTransactionFinalResponseReceived += new SIPTransactionResponseReceivedDelegate(InviteFinalResponseReceived);
FireProxyLogEvent(new ProxyMonitorEvent(ProxyServerTypesEnum.StatefulProxy, ProxyEventTypesEnum.NewCall, "Sending INVITE to " + SIPURI.ParseSIPURI(userAgentURI).ToString(), username));
inviteTransaction.SendInviteRequest(inviteRequest.GetRequestEndPoint(), inviteRequest);
}
catch (Exception excp)
{
logger.Error("Exception SendInviteRequest. " + excp.Message + ".");
}
}*/
private void InviteFinalResponseReceived(IPEndPoint localEndPoint, IPEndPoint remoteEndPoint, SIPTransaction sipTransaction, SIPResponse sipResponse)
{
try
{
logger.Debug("FinalResponseReceived for INVITE to " + sipTransaction.TransactionRequest.URI.ToString() + " " + sipResponse.Status + " " + sipResponse.ReasonPhrase + ".");
}
catch (Exception excp)
{
logger.Error("Exception InviteFinalResponseReceived. " + excp.Message);
}
}
private void ServerInformationResponseReceived(SIPEndPoint localSIPEndPoint, SIPEndPoint remoteEndPoint, SIPTransaction sipTransaction, SIPResponse sipResponse)
{
Log_External(new SIPMonitorConsoleEvent(SIPMonitorServerTypesEnum.UserAgentClient, SIPMonitorEventTypesEnum.DialPlan, "Information response " + sipResponse.StatusCode + " " + sipResponse.ReasonPhrase + " for " + m_serverTransaction.TransactionRequest.URI.ToString() + ".", Owner));
if (m_callCancelled)
{
// Call was cancelled in the interim.
Cancel();
}
else
{
if (sipResponse.Status == SIPResponseStatusCodesEnum.Ringing || sipResponse.Status == SIPResponseStatusCodesEnum.SessionProgress)
{
FireCallRinging(this, sipResponse);
}
else
{
FireCallTrying(this, sipResponse);
}
}
}
private void ServerFinalResponseReceived(SIPEndPoint localSIPEndPoint, SIPEndPoint remoteEndPoint, SIPTransaction sipTransaction, SIPResponse sipResponse)
{
try
{
//if (Thread.CurrentThread.Name.IsNullOrBlank())
//{
// Thread.CurrentThread.Name = THREAD_NAME + DateTime.Now.ToString("HHmmss") + "-" + Crypto.GetRandomString(3);
//}
Log_External(new SIPMonitorConsoleEvent(SIPMonitorServerTypesEnum.UserAgentClient, SIPMonitorEventTypesEnum.DialPlan, "Response " + sipResponse.StatusCode + " " + sipResponse.ReasonPhrase + " for " + m_serverTransaction.TransactionRequest.URI.ToString() + ".", Owner));
//m_sipTrace += "Received " + DateTime.Now.ToString("dd MMM yyyy HH:mm:ss") + " " + localEndPoint + "<-" + remoteEndPoint + "\r\n" + sipResponse.ToString();
m_serverTransaction.UACInviteTransactionInformationResponseReceived -= ServerInformationResponseReceived;
m_serverTransaction.UACInviteTransactionFinalResponseReceived -= ServerFinalResponseReceived;
m_serverTransaction.TransactionTraceMessage -= TransactionTraceMessage;
if (m_callCancelled && sipResponse.Status == SIPResponseStatusCodesEnum.RequestTerminated)
{
// No action required. Correctly received request terminated on an INVITE we cancelled.
}
else if (m_callCancelled)
{
#region Call has been cancelled, hangup.
if (m_hungupOnCancel)
{
Log_External(new SIPMonitorConsoleEvent(SIPMonitorServerTypesEnum.UserAgentClient, SIPMonitorEventTypesEnum.DialPlan, "A cancelled call to " + m_sipCallDescriptor.Uri + " has been answered AND has already been hungup, no further action being taken.", Owner));
}
else
{
m_hungupOnCancel = true;
Log_External(new SIPMonitorConsoleEvent(SIPMonitorServerTypesEnum.UserAgentClient, SIPMonitorEventTypesEnum.DialPlan, "A cancelled call to " + m_sipCallDescriptor.Uri + " has been answered, hanging up.", Owner));
if (sipResponse.Header.Contact != null && sipResponse.Header.Contact.Count > 0)
{
SIPURI byeURI = sipResponse.Header.Contact[0].ContactURI;
SIPRequest byeRequest = GetByeRequest(sipResponse, byeURI, localSIPEndPoint);
//SIPEndPoint byeEndPoint = m_sipTransport.GetRequestEndPoint(byeRequest, m_outboundProxy, true);
// if (byeEndPoint != null)
// {
SIPNonInviteTransaction byeTransaction = m_sipTransport.CreateNonInviteTransaction(byeRequest, null, localSIPEndPoint, m_outboundProxy);
byeTransaction.SendReliableRequest();
// }
// else
// {
// Log_External(new SIPMonitorConsoleEvent(SIPMonitorServerTypesEnum.UserAgentClient, SIPMonitorEventTypesEnum.DialPlan, "Could not end BYE on cancelled call as request end point could not be determined " + byeRequest.URI.ToString(), Owner));
//}
}
else
{
Log_External(new SIPMonitorConsoleEvent(SIPMonitorServerTypesEnum.UserAgentClient, SIPMonitorEventTypesEnum.DialPlan, "No contact header provided on response for cancelled call to " + m_sipCallDescriptor.Uri + " no further action.", Owner));
}
}
#endregion
}
else if (sipResponse.Status == SIPResponseStatusCodesEnum.ProxyAuthenticationRequired || sipResponse.Status == SIPResponseStatusCodesEnum.Unauthorised)
{
#region Authenticate client call to third party server.
if (!m_callCancelled)
{
if (m_sipCallDescriptor.Password.IsNullOrBlank())
{
// No point trying to authenticate if there is no password to use.
Log_External(new SIPMonitorConsoleEvent(SIPMonitorServerTypesEnum.UserAgentClient, SIPMonitorEventTypesEnum.DialPlan, "Forward leg failed, authentication was requested but no credentials were available.", Owner));
FireCallFailed(this, "Authentication requested when no credentials available");
}
else if (m_serverAuthAttempts == 0)
{
m_serverAuthAttempts = 1;
// Resend INVITE with credentials.
string username = (m_sipCallDescriptor.AuthUsername != null && m_sipCallDescriptor.AuthUsername.Trim().Length > 0) ? m_sipCallDescriptor.AuthUsername : m_sipCallDescriptor.Username;
SIPAuthorisationDigest authRequest = sipResponse.Header.AuthenticationHeader.SIPDigest;
authRequest.SetCredentials(username, m_sipCallDescriptor.Password, m_sipCallDescriptor.Uri, SIPMethodsEnum.INVITE.ToString());
SIPRequest authInviteRequest = m_serverTransaction.TransactionRequest;
authInviteRequest.Header.AuthenticationHeader = new SIPAuthenticationHeader(authRequest);
authInviteRequest.Header.AuthenticationHeader.SIPDigest.Response = authRequest.Digest;
authInviteRequest.Header.Vias.TopViaHeader.Branch = CallProperties.CreateBranchId();
authInviteRequest.Header.CSeq = authInviteRequest.Header.CSeq + 1;
// Create a new UAC transaction to establish the authenticated server call.
var originalCallTransaction = m_serverTransaction;
m_serverTransaction = m_sipTransport.CreateUACTransaction(authInviteRequest, m_serverEndPoint, localSIPEndPoint, m_outboundProxy);
if (m_serverTransaction.CDR != null)
{
m_serverTransaction.CDR.Owner = Owner;
m_serverTransaction.CDR.AdminMemberId = AdminMemberId;
m_serverTransaction.CDR.DialPlanContextID = m_sipCallDescriptor.DialPlanContextID;
m_serverTransaction.CDR.Updated();
if (AccountCode != null)
{
#if !SILVERLIGHT
RtccUpdateCdr_External?.Invoke(originalCallTransaction.CDR?.CDRId.ToString(), m_serverTransaction.CDR);
#endif
}
logger.Debug("RTCC reservation was reallocated from CDR " + originalCallTransaction.CDR?.CDRId + " to " + m_serverTransaction.CDR?.CDRId + " for owner " + Owner + ".");
}
m_serverTransaction.UACInviteTransactionInformationResponseReceived += ServerInformationResponseReceived;
m_serverTransaction.UACInviteTransactionFinalResponseReceived += ServerFinalResponseReceived;
m_serverTransaction.UACInviteTransactionTimedOut += ServerTimedOut;
m_serverTransaction.TransactionTraceMessage += TransactionTraceMessage;
m_serverTransaction.SendInviteRequest(m_serverEndPoint, authInviteRequest);
}
else
{
FireCallFailed(this, "Authentication with provided credentials failed");
}
}
#endregion
}
else
{
if (sipResponse.StatusCode >= 200 && sipResponse.StatusCode <= 299)
{
if (sipResponse.Body.IsNullOrBlank())
{
Log_External(new SIPMonitorConsoleEvent(SIPMonitorServerTypesEnum.AppServer, SIPMonitorEventTypesEnum.DialPlan, "Body on UAC response was empty.", Owner));
}
else if (m_sipCallDescriptor.ContentType == m_sdpContentType)
{
if (!m_sipCallDescriptor.MangleResponseSDP)
{
IPEndPoint sdpEndPoint = SDP.GetSDPRTPEndPoint(sipResponse.Body);
string sdpSocket = (sdpEndPoint != null) ? sdpEndPoint.ToString() : "could not determine";
Log_External(new SIPMonitorConsoleEvent(SIPMonitorServerTypesEnum.AppServer, SIPMonitorEventTypesEnum.DialPlan, "SDP on UAC response was set to NOT mangle, RTP socket " + sdpEndPoint.ToString() + ".", Owner));
}
else
{
//m_callInProgress = false; // the call is now established
//logger.Debug("Final response " + sipResponse.StatusCode + " " + sipResponse.ReasonPhrase + " for " + ForwardedTransaction.TransactionRequest.URI.ToString() + ".");
// Determine of response SDP should be mangled.
IPEndPoint sdpEndPoint = SDP.GetSDPRTPEndPoint(sipResponse.Body);
//Log_External(new SIPMonitorConsoleEvent(SIPMonitorServerTypesEnum.AppServer, SIPMonitorEventTypesEnum.DialPlan, "UAC response SDP was mangled from sdp=" + sdpEndPoint.Address.ToString() + ", proxyfrom=" + sipResponse.Header.ProxyReceivedFrom + ", mangle=" + m_sipCallDescriptor.MangleResponseSDP + ".", null));
if (sdpEndPoint != null)
{
if (!IPSocket.IsPrivateAddress(sdpEndPoint.Address.ToString()))
{
Log_External(new SIPMonitorConsoleEvent(SIPMonitorServerTypesEnum.AppServer, SIPMonitorEventTypesEnum.DialPlan, "SDP on UAC response had public IP not mangled, RTP socket " + sdpEndPoint.ToString() + ".", Owner));
}
else
{
bool wasSDPMangled = false;
string publicIPAddress = null;
if (!sipResponse.Header.ProxyReceivedFrom.IsNullOrBlank())
{
IPAddress remoteUASAddress = SIPEndPoint.ParseSIPEndPoint(sipResponse.Header.ProxyReceivedFrom).Address;
if (IPSocket.IsPrivateAddress(remoteUASAddress.ToString()) && m_sipCallDescriptor.MangleIPAddress != null)
{
// If the response has arrived here on a private IP address then it must be
// for a local version install and an incoming call that needs it's response mangled.
if(!IPSocket.IsPrivateAddress(m_sipCallDescriptor.MangleIPAddress.ToString()))
{
publicIPAddress = m_sipCallDescriptor.MangleIPAddress.ToString();
}
}
else
{
publicIPAddress = remoteUASAddress.ToString();
}
}
else if (!IPSocket.IsPrivateAddress(remoteEndPoint.Address.ToString()) && remoteEndPoint.Address != IPAddress.Any)
{
publicIPAddress = remoteEndPoint.Address.ToString();
}
else if (m_sipCallDescriptor.MangleIPAddress != null)
{
publicIPAddress = m_sipCallDescriptor.MangleIPAddress.ToString();
}
if (publicIPAddress != null)
{
sipResponse.Body = SIPPacketMangler.MangleSDP(sipResponse.Body, publicIPAddress, out wasSDPMangled);
}
if (wasSDPMangled)
{
Log_External(new SIPMonitorConsoleEvent(SIPMonitorServerTypesEnum.AppServer, SIPMonitorEventTypesEnum.DialPlan, "SDP on UAC response had RTP socket mangled from " + sdpEndPoint.ToString() + " to " + publicIPAddress + ":" + sdpEndPoint.Port + ".", Owner));
}
else if (sdpEndPoint != null)
{
Log_External(new SIPMonitorConsoleEvent(SIPMonitorServerTypesEnum.AppServer, SIPMonitorEventTypesEnum.DialPlan, "SDP on UAC response could not be mangled, RTP socket " + sdpEndPoint.ToString() + ".", Owner));
}
}
}
else
{
Log_External(new SIPMonitorConsoleEvent(SIPMonitorServerTypesEnum.AppServer, SIPMonitorEventTypesEnum.DialPlan, "SDP RTP socket on UAC response could not be determined.", Owner));
}
}
}
m_sipDialogue = new SIPDialogue(m_serverTransaction, Owner, AdminMemberId);
m_sipDialogue.CallDurationLimit = m_sipCallDescriptor.CallDurationLimit;
// Set switchboard dialogue values from the answered response or from dialplan set values.
//m_sipDialogue.SwitchboardCallerDescription = sipResponse.Header.SwitchboardCallerDescription;
m_sipDialogue.SwitchboardLineName = sipResponse.Header.SwitchboardLineName;
m_sipDialogue.CRMPersonName = sipResponse.Header.CRMPersonName;
m_sipDialogue.CRMCompanyName = sipResponse.Header.CRMCompanyName;
m_sipDialogue.CRMPictureURL = sipResponse.Header.CRMPictureURL;
if (m_sipCallDescriptor.SwitchboardHeaders != null)
{
//if (!m_sipCallDescriptor.SwitchboardHeaders.SwitchboardDialogueDescription.IsNullOrBlank())
//{
// m_sipDialogue.SwitchboardDescription = m_sipCallDescriptor.SwitchboardHeaders.SwitchboardDialogueDescription;
//}
m_sipDialogue.SwitchboardLineName = m_sipCallDescriptor.SwitchboardHeaders.SwitchboardLineName;
m_sipDialogue.SwitchboardOwner = m_sipCallDescriptor.SwitchboardHeaders.SwitchboardOwner;
}
}
FireCallAnswered(this, sipResponse);
}
}
catch (Exception excp)
{
Log_External(new SIPMonitorConsoleEvent(SIPMonitorServerTypesEnum.UserAgentClient, SIPMonitorEventTypesEnum.Error, "Exception ServerFinalResponseReceived. " + excp.Message, Owner));
}
}
private SIPRequest GetByeRequest(SIPResponse inviteResponse, SIPURI byeURI, SIPEndPoint localSIPEndPoint)
{
SIPRequest byeRequest = new SIPRequest(SIPMethodsEnum.BYE, byeURI);
byeRequest.LocalSIPEndPoint = localSIPEndPoint;
SIPFromHeader byeFromHeader = inviteResponse.Header.From;
SIPToHeader byeToHeader = inviteResponse.Header.To;
int cseq = inviteResponse.Header.CSeq + 1;
SIPHeader byeHeader = new SIPHeader(byeFromHeader, byeToHeader, cseq, inviteResponse.Header.CallId);
byeHeader.CSeqMethod = SIPMethodsEnum.BYE;
byeHeader.ProxySendFrom = m_serverTransaction.TransactionRequest.Header.ProxySendFrom;
byeRequest.Header = byeHeader;
byeRequest.Header.Routes = (inviteResponse.Header.RecordRoutes != null) ? inviteResponse.Header.RecordRoutes.Reversed() : null;
SIPViaHeader viaHeader = new SIPViaHeader(localSIPEndPoint, CallProperties.CreateBranchId());
byeRequest.Header.Vias.PushViaHeader(viaHeader);
return byeRequest;
}
private void FireCallTrying(SIPClientUserAgent uac, SIPResponse tryingResponse)
{
if (CallTrying != null)
{
CallTrying(uac, tryingResponse);
}
}
private void FireCallRinging(SIPClientUserAgent uac, SIPResponse ringingResponse)
{
if (CallRinging != null)
{
CallRinging(uac, ringingResponse);
}
}
private void ProcessRedirect(ISIPClientUserAgent answeredUAC, SIPResponse answeredResponse)
{
try
{
SIPURI redirectURI = answeredResponse.Header.Contact[0].ContactURI;
if (redirectURI == null)
{
FireProxyLogEvent(new SIPMonitorConsoleEvent(SIPMonitorServerTypesEnum.AppServer, SIPMonitorEventTypesEnum.DialPlan, "Redirect target could not be determined from redirect response, ignoring.", m_username));
}
else
{
//string canincalDomain = m_dialPlanContext.GetCanonicalDomain_External(redirectURI.Host, false);
if (answeredUAC.CallDescriptor.RedirectMode == SIPCallRedirectModesEnum.NewDialPlan)
{
m_dialPlanContext.ExecuteDialPlanForRedirect(answeredResponse);
}
else if (answeredUAC.CallDescriptor.RedirectMode == SIPCallRedirectModesEnum.Manual)
{
FireProxyLogEvent(new SIPMonitorConsoleEvent(SIPMonitorServerTypesEnum.AppServer, SIPMonitorEventTypesEnum.DialPlan, "Redirect response with URI " + redirectURI.ToString() + " was not acted on as redirect mode set to manual in dial string.", m_username));
CallLegCompleted();
}
else
{
// The redirect was not explicitly allowed so will be processed as an anonymous call.
FireProxyLogEvent(new SIPMonitorConsoleEvent(SIPMonitorServerTypesEnum.AppServer, SIPMonitorEventTypesEnum.DialPlan, "Redirect response to " + redirectURI.ToString() + " accepted.", m_username));
var redirectCalls = m_dialStringParser.GetForwardsForRedirect(redirectURI, answeredUAC.CallDescriptor);
//SIPCallDescriptor redirectCallDescriptor = answeredUAC.CallDescriptor.CopyOf();
//redirectCallDescriptor.Uri = redirectURI.ToString();
//StartNewCallAsync(redirectCallDescriptor);
if (redirectCalls != null && redirectCalls.Count > 0)
{
foreach (var redirectCall in redirectCalls)
{
StartNewCallAsync(redirectCall);
}
}
}
//else if (answeredUAC.CallDescriptor.RedirectMode == SIPCallRedirectModesEnum.Replace)
//{
// // In the Replace redirect mode the existing dialplan execution needs to be cancelled and the single redirect call be used to replace it.
// FireProxyLogEvent(new SIPMonitorConsoleEvent(SIPMonitorServerTypesEnum.AppServer, SIPMonitorEventTypesEnum.DialPlan, "Redirect response rejected as Replace mode not yet implemented.", m_username));
// CallLegCompleted();
//}
//else
//{
// FireProxyLogEvent(new SIPMonitorConsoleEvent(SIPMonitorServerTypesEnum.AppServer, SIPMonitorEventTypesEnum.DialPlan, "Redirect response with URI " + redirectURI.ToString() + " was not acted on as not enabled in dial string.", m_username));
// CallLegCompleted();
//}
// A redirect response was received. Create a new call leg(s) using the SIP URIs in the contact header of the response.
//if (m_dialStringParser != null)
//{
// // If there is a dial string parser available it will be used to generate a list of call destination from the redirect URI.
// SIPCallDescriptor redirectCallDescriptor = answeredUAC.CallDescriptor.CopyOf();
// Queue<List<SIPCallDescriptor>> redirectQueue = m_dialStringParser.ParseDialString(DialPlanContextsEnum.Script, null, redirectURI.ToString(), redirectCallDescriptor.CustomHeaders,
// redirectCallDescriptor.ContentType, redirectCallDescriptor.Content, null, redirectCallDescriptor.FromDisplayName, redirectCallDescriptor.FromURIUsername, redirectCallDescriptor.FromURIHost, null, CustomerServiceLevels.None);
// if (redirectQueue != null && redirectQueue.Count > 0)
// {
// // Only the first list in the queue is used (and there should only be a single list since it's generated from a redirect SIP URI and not
// // a full dial string).
// List<SIPCallDescriptor> callDescriptors = redirectQueue.Dequeue();
// for (int index = 0; index < callDescriptors.Count; index++)
// {
// callDescriptors[index].MangleIPAddress = redirectCallDescriptor.MangleIPAddress;
// callDescriptors[index].MangleResponseSDP = redirectCallDescriptor.MangleResponseSDP;
// callDescriptors[index].TransferMode = redirectCallDescriptor.TransferMode;
// }
// Start(callDescriptors);
// }
// else
// {
// FireProxyLogEvent(new SIPMonitorConsoleEvent(SIPMonitorServerTypesEnum.AppServer, SIPMonitorEventTypesEnum.DialPlan, "A redirect response to " + redirectURI.ToString() + " did not generate any new call leg destinations.", m_username));
// }
//}
//else
//{
// FireProxyLogEvent(new SIPMonitorConsoleEvent(SIPMonitorServerTypesEnum.AppServer, SIPMonitorEventTypesEnum.DialPlan, "Redirect response to " + redirectURI.ToString() + " accepted.", m_username));
// SIPCallDescriptor redirectCallDescriptor = answeredUAC.CallDescriptor.CopyOf();
// redirectCallDescriptor.Uri = redirectURI.ToString();
// StartNewCallAsync(redirectCallDescriptor);
//}
}
}
catch (Exception excp)
{
logger.Error("Exception ForkCall ProcessRedirect. " + excp.Message);
}
}
private Task <SocketError> SubscribeTransactionFinalResponseReceived(SIPEndPoint localSIPEndPoint,
SIPEndPoint remoteEndPoint, SIPTransaction sipTransaction, SIPResponse sipResponse)
{
try
{
if (sipResponse.Status == SIPResponseStatusCodesEnum.IntervalTooBrief)
{
// The expiry interval used was too small. Adjust and try again.
m_expiry = (sipResponse.Header.MinExpires > 0) ? sipResponse.Header.MinExpires : m_expiry * 2;
logger.LogWarning("A subscribe request was rejected with IntervalTooBrief, adjusting expiry to " +
m_expiry + " and trying again.");
Subscribe(m_resourceURI, m_expiry, m_sipEventPackage, m_subscribeCallID, null);
}
else if (sipResponse.Status == SIPResponseStatusCodesEnum.Forbidden)
{
// The subscription is never going to succeed so cancel it.
SubscriptionFailed(m_resourceURI, sipResponse.Status,
"A Forbidden response was received on a subscribe attempt to " + m_resourceURI.ToString() +
" for user " + m_authUsername + ".");
m_exit = true;
m_waitForSubscribeResponse.Set();
}
else if (sipResponse.Status == SIPResponseStatusCodesEnum.BadEvent)
{
// The subscription is never going to succeed so cancel it.
SubscriptionFailed(m_resourceURI, sipResponse.Status,
"A BadEvent response was received on a subscribe attempt to " + m_resourceURI.ToString() +
" for event package " + m_sipEventPackage.ToString() + ".");
m_exit = true;
m_waitForSubscribeResponse.Set();
}
else if (sipResponse.Status == SIPResponseStatusCodesEnum.CallLegTransactionDoesNotExist)
{
// The notifier server does not have a record for the existing subscription.
SubscriptionFailed(m_resourceURI, sipResponse.Status,
"Subscribe failed with response " + sipResponse.StatusCode + " " + sipResponse.ReasonPhrase +
".");
m_waitForSubscribeResponse.Set();
}
else if (sipResponse.Status == SIPResponseStatusCodesEnum.ProxyAuthenticationRequired ||
sipResponse.Status == SIPResponseStatusCodesEnum.Unauthorised)
{
if (m_authUsername.IsNullOrBlank() || m_authPassword.IsNullOrBlank())
{
// No point trying to authenticate if there are no credentials to use.
SubscriptionFailed(m_resourceURI, sipResponse.Status,
"Authentication requested on subscribe request when no credentials available.");
m_waitForSubscribeResponse.Set();
}
else if (sipResponse.Header.AuthenticationHeader != null)
{
if (m_attempts >= MAX_SUBSCRIBE_ATTEMPTS)
{
m_subscribed = false;
SubscriptionFailed(m_resourceURI, SIPResponseStatusCodesEnum.InternalServerError,
"Subscription reached the maximum number of allowed attempts.");
m_waitForSubscribeResponse.Set();
}
else
{
logger.LogDebug("Attempting authentication for subscribe request for event package " +
m_sipEventPackage.ToString() + " and " + m_resourceURI.ToString() + ".");
m_attempts++;
// Resend SUBSCRIBE with credentials.
SIPAuthorisationDigest authRequest = sipResponse.Header.AuthenticationHeader.SIPDigest;
authRequest.SetCredentials(m_authUsername, m_authPassword, m_resourceURI.ToString(),
SIPMethodsEnum.SUBSCRIBE.ToString());
SIPRequest authSubscribeRequest = sipTransaction.TransactionRequest;
authSubscribeRequest.Header.AuthenticationHeader = new SIPAuthenticationHeader(authRequest);
authSubscribeRequest.Header.AuthenticationHeader.SIPDigest.Response = authRequest.Digest;
authSubscribeRequest.Header.Vias.TopViaHeader.Branch = CallProperties.CreateBranchId();
m_localCSeq = sipTransaction.TransactionRequest.Header.CSeq + 1;
authSubscribeRequest.Header.CSeq = m_localCSeq;
authSubscribeRequest.Header.CallId = m_subscribeCallID;
if (!m_filter.IsNullOrBlank())
{
authSubscribeRequest.Body = m_filter;
authSubscribeRequest.Header.ContentLength = m_filter.Length;
authSubscribeRequest.Header.ContentType = m_filterTextType;
}
// Create a new transaction to establish the authenticated server call.
SIPNonInviteTransaction subscribeTransaction =
new SIPNonInviteTransaction(m_sipTransport, authSubscribeRequest, m_outboundProxy);
subscribeTransaction.NonInviteTransactionFinalResponseReceived +=
SubscribeTransactionFinalResponseReceived;
subscribeTransaction.NonInviteTransactionTimedOut += SubsribeTransactionTimedOut;
m_sipTransport.SendTransaction(subscribeTransaction);
}
}
else
{
SubscriptionFailed(sipTransaction.TransactionRequestURI, sipResponse.Status,
"Subscribe requested authentication but did not provide an authentication header.");
m_waitForSubscribeResponse.Set();
}
}
else if (sipResponse.StatusCode >= 200 && sipResponse.StatusCode <= 299)
{
logger.LogDebug("Authenticating subscribe request for event package " +
m_sipEventPackage.ToString() + " and " + m_resourceURI.ToString() +
" was successful.");
m_subscribed = true;
m_subscriptionToTag = sipResponse.Header.To.ToTag;
SubscriptionSuccessful(m_resourceURI);
m_waitForSubscribeResponse.Set();
}
else
{
SubscriptionFailed(m_resourceURI, sipResponse.Status,
"Subscribe failed with response " + sipResponse.StatusCode + " " + sipResponse.ReasonPhrase +
".");
m_waitForSubscribeResponse.Set();
}
return(Task.FromResult(SocketError.Success));
}
catch (Exception excp)
{
logger.LogError("Exception SubscribeTransactionFinalResponseReceived. " + excp.Message);
SubscriptionFailed(m_resourceURI, SIPResponseStatusCodesEnum.InternalServerError,
"Exception processing subscribe response. " + excp.Message);
m_waitForSubscribeResponse.Set();
return(Task.FromResult(SocketError.Fault));
}
}
public SIPRequest GetAuthenticatedRequest(SIPRequest origRequest, SIPResponse authReqdResponse, string username, string password)
{
SIPRequest authRequest = origRequest;
authRequest.Header.Via.TopViaHeader.Branch = CallProperties.CreateBranchId();
authRequest.Header.From.FromTag = CallProperties.CreateNewTag();
authRequest.Header.CSeq = origRequest.Header.CSeq + 1;
AuthorizationRequest authorizationRequest = authReqdResponse.Header.AuthenticationHeader.AuthRequest;
authorizationRequest.SetCredentials(username, password, origRequest.URI.ToString(), origRequest.Method.ToString());
authRequest.Header.AuthenticationHeader = new SIPAuthenticationHeader(authorizationRequest);
authRequest.Header.AuthenticationHeader.AuthRequest.Response = authorizationRequest.Digest;
return authRequest;
}
public bool AuthenticateCall()
{
m_isAuthenticated = false;
try
{
if (SIPAuthenticateRequest_External == null)
{
// No point trying to authenticate if we haven't been given an authentication delegate.
Reject(SIPResponseStatusCodesEnum.InternalServerError, null, null);
}
else if (GetSIPAccount_External == null)
{
// No point trying to authenticate if we haven't been given a delegate to load the SIP account.
Reject(SIPResponseStatusCodesEnum.InternalServerError, null, null);
}
else
{
m_sipAccount = GetSIPAccount_External(m_sipUsername, m_sipDomain);
if (m_sipAccount == null)
{
Log_External(new SIPMonitorConsoleEvent(SIPMonitorServerTypesEnum.AppServer, SIPMonitorEventTypesEnum.DialPlan, "Rejecting authentication required call for " + m_sipUsername + "@" + m_sipDomain + ", SIP account not found.", null));
Reject(SIPResponseStatusCodesEnum.Forbidden, null, null);
}
else
{
SIPRequest sipRequest = m_uasTransaction.TransactionRequest;
SIPEndPoint localSIPEndPoint = (!sipRequest.Header.ProxyReceivedOn.IsNullOrBlank()) ? SIPEndPoint.ParseSIPEndPoint(sipRequest.Header.ProxyReceivedOn) : sipRequest.LocalSIPEndPoint;
SIPEndPoint remoteEndPoint = (!sipRequest.Header.ProxyReceivedFrom.IsNullOrBlank()) ? SIPEndPoint.ParseSIPEndPoint(sipRequest.Header.ProxyReceivedFrom) : sipRequest.RemoteSIPEndPoint;
SIPRequestAuthenticationResult authenticationResult = SIPAuthenticateRequest_External(localSIPEndPoint, remoteEndPoint, sipRequest, m_sipAccount, Log_External);
if (authenticationResult.Authenticated)
{
if (authenticationResult.WasAuthenticatedByIP)
{
Log_External(new SIPMonitorConsoleEvent(SIPMonitorServerTypesEnum.AppServer, SIPMonitorEventTypesEnum.DialPlan, "New call from " + remoteEndPoint.ToString() + " successfully authenticated by IP address.", m_sipAccount.Owner));
}
else
{
Log_External(new SIPMonitorConsoleEvent(SIPMonitorServerTypesEnum.AppServer, SIPMonitorEventTypesEnum.DialPlan, "New call from " + remoteEndPoint.ToString() + " successfully authenticated by digest.", m_sipAccount.Owner));
}
SetOwner(m_sipAccount.Owner, m_sipAccount.AdminMemberId);
m_isAuthenticated = true;
}
else
{
// Send authorisation failure or required response
SIPResponse authReqdResponse = SIPTransport.GetResponse(sipRequest, authenticationResult.ErrorResponse, null);
authReqdResponse.Header.AuthenticationHeader = authenticationResult.AuthenticationRequiredHeader;
Log_External(new SIPMonitorConsoleEvent(SIPMonitorServerTypesEnum.AppServer, SIPMonitorEventTypesEnum.DialPlan, "Call not authenticated for " + m_sipUsername + "@" + m_sipDomain + ", responding with " + authenticationResult.ErrorResponse + ".", null));
m_uasTransaction.SendFinalResponse(authReqdResponse);
}
}
}
}
catch (Exception excp)
{
logger.LogError("Exception SIPServerUserAgent AuthenticateCall. " + excp.Message);
Reject(SIPResponseStatusCodesEnum.InternalServerError, null, null);
}
return(m_isAuthenticated);
}
public SIPRequest GetByeRequest(SIPResponse inviteResponse)
{
SIPRequest byeRequest = new SIPRequest(SIPMethodsEnum.BYE, inviteResponse.Header.Contact[0].ContactURI);
SIPHeader byeHeader = new SIPHeader(inviteResponse.Header.From, inviteResponse.Header.To, inviteResponse.Header.CSeq + 1, inviteResponse.Header.CallId);
byeHeader.CSeqMethod = SIPMethodsEnum.BYE;
IPEndPoint localSIPEndPoint = m_sipTransport.GetIPEndPointsList()[0];
SIPViaHeader viaHeader = new SIPViaHeader(localSIPEndPoint.Address.ToString(), localSIPEndPoint.Port, CallProperties.CreateBranchId());
byeHeader.Via.PushViaHeader(viaHeader);
byeRequest.Header = byeHeader;
return byeRequest;
}
private void TransactionInformationResponseReceived(IPEndPoint localEndPoint, IPEndPoint remoteEndPoint, SIPTransaction sipTransaction, SIPResponse sipResponse)
{
m_lastInfoResponse = sipResponse;
m_waitForSIPInfoResponse.Set();
}
public SIPRequest GetReferRequest(SIPRequest inviteRequest, SIPResponse inviteResponse, string referToURI)
{
SIPRequest referRequest = new SIPRequest(SIPMethodsEnum.REFER, inviteRequest.URI);
SIPHeader referHeader = new SIPHeader(inviteResponse.Header.From, inviteResponse.Header.To, inviteRequest.Header.CSeq + 1, inviteRequest.Header.CallId);
referHeader.Contact = inviteRequest.Header.Contact;
referHeader.CSeqMethod = SIPMethodsEnum.REFER;
referHeader.ReferTo = referToURI;
SIPFromHeader referredBy = new SIPFromHeader(inviteRequest.Header.From.FromName, inviteRequest.Header.From.FromURI, null);
referHeader.ReferredBy = referredBy.ToString();
referHeader.AuthenticationHeader = inviteRequest.Header.AuthenticationHeader;
IPEndPoint localSIPEndPoint = m_sipTransport.GetIPEndPointsList()[0];
SIPViaHeader viaHeader = new SIPViaHeader(localSIPEndPoint.Address.ToString(), localSIPEndPoint.Port, CallProperties.CreateBranchId());
referHeader.Via.PushViaHeader(viaHeader);
referRequest.Header = referHeader;
return referRequest;
}
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 void TransactionInformationResponseReceived(IPEndPoint localEndPoint, IPEndPoint remoteEndPoint, SIPTransaction sipTransaction, SIPResponse sipResponse)
{
m_lastInfoResponse = sipResponse;
m_waitForSIPInfoResponse.Set();
}
/// <summary>
/// Handler for when an in dialog request is received on an established call.
/// Typical types of request will be re-INVITES for things like putting a call on or
/// off hold and REFER requests for transfers. Some in dialog request types, such
/// as re-INVITES have specific events so they can be bubbled up to the
/// application to deal with.
/// </summary>
/// <param name="sipRequest">The in dialog request received.</param>
private async Task DialogRequestReceivedAsync(SIPRequest sipRequest)
{
if (sipRequest.Method == SIPMethodsEnum.BYE)
{
logger.LogInformation($"Remote call party hungup {sipRequest.StatusLine}.");
Dialogue.DialogueState = SIPDialogueStateEnum.Terminated;
SIPNonInviteTransaction byeTx = new SIPNonInviteTransaction(m_transport, sipRequest, null);
byeTx.SendResponse(SIPResponse.GetResponse(sipRequest, SIPResponseStatusCodesEnum.Ok, null));
CallEnded();
}
else if (sipRequest.Method == SIPMethodsEnum.INVITE)
{
logger.LogDebug($"Re-INVITE request received {sipRequest.StatusLine}.");
UASInviteTransaction reInviteTransaction = new UASInviteTransaction(m_transport, sipRequest, m_outboundProxy);
try
{
MediaSession.setRemoteDescription(new RTCSessionDescription {
sdp = SDP.ParseSDPDescription(sipRequest.Body), type = RTCSdpType.offer
});
CheckRemotePartyHoldCondition(MediaSession.remoteDescription.sdp);
var answerSdp = await MediaSession.createAnswer(null).ConfigureAwait(false);
Dialogue.RemoteSDP = sipRequest.Body;
Dialogue.SDP = answerSdp.ToString();
Dialogue.RemoteCSeq = sipRequest.Header.CSeq;
var okResponse = reInviteTransaction.GetOkResponse(SDP.SDP_MIME_CONTENTTYPE, Dialogue.SDP);
reInviteTransaction.SendFinalResponse(okResponse);
}
catch (Exception ex)
{
logger.LogError(ex, "MediaSession can't process the re-INVITE request.");
if (OnReinviteRequest == null)
{
// The application isn't prepared to accept re-INVITE requests and we can't work out what it was for.
// We'll reject as gently as we can to try and not lose the call.
SIPResponse notAcceptableResponse = SIPResponse.GetResponse(sipRequest, SIPResponseStatusCodesEnum.NotAcceptable, null);
reInviteTransaction.SendFinalResponse(notAcceptableResponse);
}
else
{
// The application is going to handle the re-INVITE request. We'll send a Trying response as a precursor.
SIPResponse tryingResponse = SIPResponse.GetResponse(sipRequest, SIPResponseStatusCodesEnum.Trying, null);
await reInviteTransaction.SendProvisionalResponse(tryingResponse).ConfigureAwait(false);
OnReinviteRequest.Invoke(reInviteTransaction);
}
}
}
else if (sipRequest.Method == SIPMethodsEnum.OPTIONS)
{
//Log_External(new SIPMonitorConsoleEvent(SIPMonitorServerTypesEnum.AppServer, SIPMonitorEventTypesEnum.DialPlan, "OPTIONS request for established dialogue " + dialogue.DialogueName + ".", dialogue.Owner));
SIPResponse okResponse = SIPResponse.GetResponse(sipRequest, SIPResponseStatusCodesEnum.Ok, null);
okResponse.Body = Dialogue.RemoteSDP;
okResponse.Header.ContentLength = okResponse.Body.Length;
okResponse.Header.ContentType = m_sdpContentType;
await SendResponseAsync(okResponse).ConfigureAwait(false);
}
else if (sipRequest.Method == SIPMethodsEnum.MESSAGE)
{
//Log_External(new SIPMonitorConsoleEvent(SIPMonitorServerTypesEnum.AppServer, SIPMonitorEventTypesEnum.DialPlan, "MESSAGE for call " + sipRequest.URI.ToString() + ": " + sipRequest.Body + ".", dialogue.Owner));
SIPResponse okResponse = SIPResponse.GetResponse(sipRequest, SIPResponseStatusCodesEnum.Ok, null);
await m_transport.SendResponseAsync(okResponse).ConfigureAwait(false);
}
else if (sipRequest.Method == SIPMethodsEnum.REFER)
{
if (sipRequest.Header.ReferTo.IsNullOrBlank())
{
// A REFER request must have a Refer-To header.
//Log_External(new SIPMonitorConsoleEvent(SIPMonitorServerTypesEnum.AppServer, SIPMonitorEventTypesEnum.DialPlan, "Bad REFER request, no Refer-To header.", dialogue.Owner));
SIPResponse invalidResponse = SIPResponse.GetResponse(sipRequest, SIPResponseStatusCodesEnum.BadRequest, "Missing mandatory Refer-To header");
await SendResponseAsync(invalidResponse).ConfigureAwait(false);
}
else
{
//TODO: Add handling logic for in transfer requests from the remote call party.
}
}
else if (sipRequest.Method == SIPMethodsEnum.NOTIFY)
{
SIPResponse okResponse = SIPResponse.GetResponse(sipRequest, SIPResponseStatusCodesEnum.Ok, null);
await SendResponseAsync(okResponse).ConfigureAwait(false);
if (sipRequest.Body?.Length > 0 && sipRequest.Header.ContentType?.Contains(m_sipReferContentType) == true)
{
OnTransferNotify?.Invoke(sipRequest.Body);
}
}
}
private void TransactionFinalResponseReceived(IPEndPoint localEndPoint, IPEndPoint remoteEndPoint, SIPTransaction sipTransaction, SIPResponse sipResponse)
{
m_lastFinalResponse = sipResponse;
m_waitForSIPFinalResponse.Set();
}
private RegisterResultEnum Register(SIPTransaction registerTransaction)
{
try
{
SIPRequest sipRequest = registerTransaction.TransactionRequest;
SIPURI registerURI = sipRequest.URI;
SIPToHeader toHeader = sipRequest.Header.To;
string toUser = toHeader.ToURI.User;
//string canonicalDomain = (m_strictRealmHandling) ? GetCanonicalDomain_External(toHeader.ToURI.Host, true) : toHeader.ToURI.Host;
string canonicalDomain = toHeader.ToURI.Host;
int requestedExpiry = GetRequestedExpiry(sipRequest);
if (canonicalDomain == null)
{
FireProxyLogEvent(new SIPMonitorConsoleEvent(SIPMonitorServerTypesEnum.Registrar, SIPMonitorEventTypesEnum.Warn, "Register request for " + toHeader.ToURI.Host + " rejected as no matching domain found.", null));
SIPResponse noDomainResponse = GetErrorResponse(sipRequest, SIPResponseStatusCodesEnum.Forbidden, "Domain not serviced");
registerTransaction.SendFinalResponse(noDomainResponse);
return(RegisterResultEnum.DomainNotServiced);
}
//SIPAccount sipAccount = GetSIPAccount_External(s => s.SIPUsername == toUser && s.SIPDomain == canonicalDomain);
SIPAccount sipAccount = new SIPAccount
{
Id = Guid.NewGuid(),
Owner = "admin",
SIPUsername = toUser,
SIPDomain = canonicalDomain
};
//SIPAccount sipAccount = GetSIPAccount_External(s => s.SIPUsername == toUser);
SIPRequestAuthenticationResult authenticationResult = _sipRequestAuthenticator_External?.Invoke(registerTransaction.LocalSIPEndPoint, registerTransaction.RemoteEndPoint, sipRequest, sipAccount, FireProxyLogEvent);
if (!_needAuthentication)
{
SIPResponse okRes = GetOkResponse(sipRequest);
registerTransaction.SendFinalResponse(okRes);
//Add Camera Item Into Cache
CacheDeviceItem(sipRequest);
return(RegisterResultEnum.AuthenticationRequired);
}
if (!authenticationResult.Authenticated)
{
// 401 Response with a fresh nonce needs to be sent.
SIPResponse authReqdResponse = SIPTransport.GetResponse(sipRequest, authenticationResult.ErrorResponse, null);
authReqdResponse.Header.AuthenticationHeader = authenticationResult.AuthenticationRequiredHeader;
registerTransaction.SendFinalResponse(authReqdResponse);
if (authenticationResult.ErrorResponse == SIPResponseStatusCodesEnum.Forbidden)
{
FireProxyLogEvent(new SIPMonitorConsoleEvent(SIPMonitorServerTypesEnum.Registrar, SIPMonitorEventTypesEnum.Warn, "Forbidden " + toUser + "@" + canonicalDomain + " does not exist, " + sipRequest.Header.ProxyReceivedFrom + ", " + sipRequest.Header.UserAgent + ".", null));
return(RegisterResultEnum.Forbidden);
}
else
{
FireProxyLogEvent(new SIPMonitorConsoleEvent(SIPMonitorServerTypesEnum.Registrar, SIPMonitorEventTypesEnum.Registrar, "Authentication required for " + toUser + "@" + canonicalDomain + " from " + sipRequest.Header.ProxyReceivedFrom + ".", toUser));
return(RegisterResultEnum.AuthenticationRequired);
}
}
else
{
// Authenticated.
//if (!sipRequest.Header.UserAgent.IsNullOrBlank() && !m_switchboarduserAgentPrefix.IsNullOrBlank() && sipRequest.Header.UserAgent.StartsWith(m_switchboarduserAgentPrefix))
//{
// // Check that the switchboard user is authorised.
// var customer = CustomerPersistor_External.Get(x => x.CustomerUsername == sipAccount.Owner);
// if (!(customer.ServiceLevel == CustomerServiceLevels.Switchboard.ToString() || customer.ServiceLevel == CustomerServiceLevels.Gold.ToString()))
// {
// FireProxyLogEvent(new SIPMonitorConsoleEvent(SIPMonitorServerTypesEnum.Registrar, SIPMonitorEventTypesEnum.Warn, "Register request for switchboard from " + toHeader.ToURI.Host + " rejected as not correct service level.", sipAccount.Owner));
// SIPResponse payReqdResponse = GetErrorResponse(sipRequest, SIPResponseStatusCodesEnum.PaymentRequired, "You need to purchase a Switchboard service");
// registerTransaction.SendFinalResponse(payReqdResponse);
// return RegisterResultEnum.SwitchboardPaymentRequired;
// }
//}
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<SIPContactHeader> contactsList = m_registrarBindingsManager.GetContactHeader(); // registration.GetContactHeader(true, null);
//if (bindings != null)
//{
// sipRequest.Header.Contact = GetContactHeader(bindings);
//}
SIPResponse okResponse = GetOkResponse(sipRequest);
registerTransaction.SendFinalResponse(okResponse);
//Add Camera Item Into Cache
CacheDeviceItem(sipRequest);
FireProxyLogEvent(new SIPMonitorConsoleEvent(SIPMonitorServerTypesEnum.Registrar, SIPMonitorEventTypesEnum.RegisterSuccess, "Empty registration request successful for " + toUser + "@" + canonicalDomain + " from " + sipRequest.Header.ProxyReceivedFrom + ".", toUser));
}
else
{
SIPEndPoint uacRemoteEndPoint = SIPEndPoint.TryParse(sipRequest.Header.ProxyReceivedFrom) ?? registerTransaction.RemoteEndPoint;
SIPEndPoint proxySIPEndPoint = SIPEndPoint.TryParse(sipRequest.Header.ProxyReceivedOn);
SIPEndPoint registrarEndPoint = registerTransaction.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[0].ContactURI.CopyOf(),
// sipRequest.Header.Contact,
// sipRequest.Header.CallId,
// sipRequest.Header.CSeq,
// //sipRequest.Header.Contact[0].Expires,
// sipRequest.Header.Expires,
// sipRequest.Header.UserAgent,
// out updateResult,
// out updateMessage);
//int bindingExpiry = GetBindingExpiry(bindingsList, sipRequest.Header.Contact[0].ContactURI.ToString());
TimeSpan duration = DateTime.Now.Subtract(startTime);
FireProxyLogEvent(new SIPMonitorConsoleEvent(SIPMonitorServerTypesEnum.Registrar, SIPMonitorEventTypesEnum.RegistrarTiming, "Binding update time for " + toUser + "@" + canonicalDomain + " took " + duration.TotalMilliseconds + "ms.", null));
if (updateResult == SIPResponseStatusCodesEnum.Ok)
{
string proxySocketStr = (proxySIPEndPoint != null) ? " (proxy=" + proxySIPEndPoint.ToString() + ")" : null;
// int bindingCount = 1;
//foreach (SIPRegistrarBinding binding in bindingsList)
//{
// string bindingIndex = (bindingsList.Count == 1) ? String.Empty : " (" + bindingCount + ")";
// //FireProxyLogEvent(new SIPMonitorConsoleEvent(SIPMonitorServerTypesEnum.Registrar, SIPMonitorEventTypesEnum.RegisterSuccess, "Registration successful for " + toUser + "@" + canonicalDomain + " from " + uacRemoteEndPoint + proxySocketStr + ", binding " + binding.ContactSIPURI.ToParameterlessString() + ";expiry=" + binding.Expiry + bindingIndex + ".", toUser));
// FireProxyLogEvent(new SIPMonitorConsoleEvent(SIPMonitorServerTypesEnum.Registrar, SIPMonitorEventTypesEnum.RegisterSuccess, "Registration successful for " + toUser + "@" + canonicalDomain + " from " + uacRemoteEndPoint + ", binding " + binding.ContactSIPURI.ToParameterlessString() + ";expiry=" + binding.Expiry + bindingIndex + ".", toUser));
// //FireProxyLogEvent(new SIPMonitorMachineEvent(SIPMonitorMachineEventTypesEnum.SIPRegistrarBindingUpdate, toUser, uacRemoteEndPoint, sipAccount.Id.ToString()));
// bindingCount++;
//}
// The standard states that the Ok response should contain the list of current bindings but that breaks some UAs. As a
// compromise the list is returned with the Contact that UAC sent as the first one in the list.
//bool contactListSupported = m_userAgentConfigs.GetUserAgentContactListSupport(sipRequest.Header.UserAgent);
//if (contactListSupported)
//{
// sipRequest.Header.Contact = GetContactHeader(bindingsList);
//}
//else
//{
// // Some user agents can't match the contact header if the expiry is added to it.
// sipRequest.Header.Contact[0].Expires = GetBindingExpiry(bindingsList, sipRequest.Header.Contact[0].ContactURI.ToString()); ;
//}
SIPResponse okResponse = GetOkResponse(sipRequest);
// If a request was made for a switchboard token and a certificate is available to sign the tokens then generate it.
//if (sipRequest.Header.SwitchboardTokenRequest > 0 && m_switchbboardRSAProvider != null)
//{
// SwitchboardToken token = new SwitchboardToken(sipRequest.Header.SwitchboardTokenRequest, sipAccount.Owner, uacRemoteEndPoint.Address.ToString());
// lock (m_switchbboardRSAProvider)
// {
// token.SignedHash = Convert.ToBase64String(m_switchbboardRSAProvider.SignHash(Crypto.GetSHAHash(token.GetHashString()), null));
// }
// string tokenXML = token.ToXML(true);
// logger.Debug("Switchboard token set for " + sipAccount.Owner + " with expiry of " + token.Expiry + "s.");
// okResponse.Header.SwitchboardToken = Crypto.SymmetricEncrypt(sipAccount.SIPPassword, sipRequest.Header.AuthenticationHeader.SIPDigest.Nonce, tokenXML);
//}
registerTransaction.SendFinalResponse(okResponse);
//Add Camera Item Into Cache
CacheDeviceItem(sipRequest);
}
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.
FireProxyLogEvent(new SIPMonitorConsoleEvent(SIPMonitorServerTypesEnum.Registrar, SIPMonitorEventTypesEnum.Error, "Registration request successful but binding update failed for " + toUser + "@" + canonicalDomain + " from " + registerTransaction.RemoteEndPoint + ".", toUser));
sipRequest.Header.Contact[0].Expires = m_minimumBindingExpiry;
SIPResponse okResponse = GetOkResponse(sipRequest);
registerTransaction.SendFinalResponse(okResponse);
}
}
return(RegisterResultEnum.Authenticated);
}
}
catch (Exception excp)
{
string regErrorMessage = "Exception registrarcore registering. " + excp.Message + "\r\n" + registerTransaction.TransactionRequest.ToString();
logger.Error(regErrorMessage);
FireProxyLogEvent(new SIPMonitorConsoleEvent(SIPMonitorServerTypesEnum.Registrar, SIPMonitorEventTypesEnum.Error, regErrorMessage, null));
try
{
SIPResponse errorResponse = GetErrorResponse(registerTransaction.TransactionRequest, SIPResponseStatusCodesEnum.InternalServerError, null);
registerTransaction.SendFinalResponse(errorResponse);
}
catch { }
return(RegisterResultEnum.Error);
}
}
public SIPResponse WaitForFinalResponse(int waitSeconds, SIPRequest sipRequest)
{
DateTime startWaitTime = DateTime.Now;
m_waitForSIPFinalResponse.Reset();
m_lastFinalResponse = null;
while (m_lastFinalResponse == null && DateTime.Now.Subtract(startWaitTime).TotalSeconds < waitSeconds)
{
m_waitForSIPFinalResponse.WaitOne(Convert.ToInt32((waitSeconds - DateTime.Now.Subtract(startWaitTime).TotalSeconds) * 1000), false);
if (m_lastFinalResponse != null && m_lastFinalResponse.Header.CallId == sipRequest.Header.CallId)
{
break;
}
else
{
m_lastFinalResponse = null;
}
}
return m_lastFinalResponse;
}
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);
}
}
private SIPResponse GetResponse(SIPHeader requestHeader, SIPResponseStatusCodesEnum responseCode)
{
try
{
SIPResponse response = new SIPResponse(responseCode);
response.Header = new SIPHeader(requestHeader.Contact, requestHeader.From, requestHeader.To, requestHeader.CSeq, requestHeader.CallId);
response.Header.CSeqMethod = requestHeader.CSeqMethod;
response.Header.Via = requestHeader.Via;
response.Header.MaxForwards = Int32.MinValue;
return response;
}
catch (Exception excp)
{
logger.Error("Exception GetResponse. " + excp.Message);
throw excp;
}
}
private void UACCallAnswered(ISIPClientUserAgent answeredUAC, SIPResponse answeredResponse)
{
try
{
// Remove the current call from the pending list.
lock (m_switchCalls)
{
m_switchCalls.Remove(answeredUAC);
}
if (m_switchCallTransactions != null && answeredUAC.ServerTransaction != null)
{
m_switchCallTransactions.Add(answeredUAC.ServerTransaction);
}
if (answeredResponse != null && answeredResponse.StatusCode >= 200 && answeredResponse.StatusCode <= 299)
{
#region 2xx final response.
if (!m_callAnswered && !m_commandCancelled)
{
// This is the first call we've got an answer on.
m_callAnswered = true;
m_answeredUAC = answeredUAC;
AnsweredSIPResponse = answeredResponse;
SIPDialogueTransferModesEnum uasTransferMode = SIPDialogueTransferModesEnum.Default;
if (m_answeredUAC.CallDescriptor.TransferMode == SIPDialogueTransferModesEnum.NotAllowed)
{
answeredUAC.SIPDialogue.TransferMode = SIPDialogueTransferModesEnum.NotAllowed;
uasTransferMode = SIPDialogueTransferModesEnum.NotAllowed;
}
else if (m_answeredUAC.CallDescriptor.TransferMode == SIPDialogueTransferModesEnum.BlindPlaceCall)
{
answeredUAC.SIPDialogue.TransferMode = SIPDialogueTransferModesEnum.BlindPlaceCall;
uasTransferMode = SIPDialogueTransferModesEnum.BlindPlaceCall;
}
else if (m_answeredUAC.CallDescriptor.TransferMode == SIPDialogueTransferModesEnum.PassThru)
{
answeredUAC.SIPDialogue.TransferMode = SIPDialogueTransferModesEnum.PassThru;
uasTransferMode = SIPDialogueTransferModesEnum.PassThru;
}
/*else if (m_answeredUAC.CallDescriptor.TransferMode == SIPCallTransferModesEnum.Caller)
* {
* answeredUAC.SIPDialogue.TransferMode = SIPDialogueTransferModesEnum.NotAllowed;
* uasTransferMode = SIPDialogueTransferModesEnum.Allowed;
* }
* else if (m_answeredUAC.CallDescriptor.TransferMode == SIPCallTransferModesEnum.Callee)
* {
* answeredUAC.SIPDialogue.TransferMode = SIPDialogueTransferModesEnum.Allowed;
* uasTransferMode = SIPDialogueTransferModesEnum.NotAllowed;
* }
* else if (m_answeredUAC.CallDescriptor.TransferMode == SIPCallTransferModesEnum.Both)
* {
* answeredUAC.SIPDialogue.TransferMode = SIPDialogueTransferModesEnum.Allowed;
* uasTransferMode = SIPDialogueTransferModesEnum.Allowed;
* }*/
if (CallAnswered != null)
{
logger.Debug("Transfer mode=" + m_answeredUAC.CallDescriptor.TransferMode + ".");
CallAnswered(answeredResponse.Status, answeredResponse.ReasonPhrase, null, null, answeredResponse.Header.ContentType, answeredResponse.Body, answeredUAC.SIPDialogue, uasTransferMode);
}
// Cancel/hangup and other calls on this leg that are still around.
CancelNotRequiredCallLegs(CallCancelCause.NormalClearing);
}
else
{
// Call already answered or cancelled, hangup (send BYE).
FireProxyLogEvent(new SIPMonitorConsoleEvent(SIPMonitorServerTypesEnum.AppServer, SIPMonitorEventTypesEnum.DialPlan, "Call leg " + answeredUAC.CallDescriptor.Uri + " answered but call was already answered or cancelled, hanging up.", m_username));
SIPDialogue sipDialogue = new SIPDialogue(answeredUAC.ServerTransaction, m_username, m_adminMemberId);
sipDialogue.Hangup(m_sipTransport, m_outboundProxySocket);
}
#endregion
CallLegCompleted();
}
else if (answeredUAC.SIPDialogue != null)
{
// Google Voice calls create the dialogue without using a SIP response.
if (!m_callAnswered && !m_commandCancelled)
{
FireProxyLogEvent(new SIPMonitorConsoleEvent(SIPMonitorServerTypesEnum.AppServer, SIPMonitorEventTypesEnum.DialPlan, "Call leg for Google Voice call to " + answeredUAC.CallDescriptor.Uri + " answered.", m_username));
// This is the first call we've got an answer on.
m_callAnswered = true;
m_answeredUAC = answeredUAC;
if (CallAnswered != null)
{
CallAnswered(SIPResponseStatusCodesEnum.Ok, null, null, null, answeredUAC.SIPDialogue.ContentType, answeredUAC.SIPDialogue.RemoteSDP, answeredUAC.SIPDialogue, SIPDialogueTransferModesEnum.NotAllowed);
}
// Cancel/hangup and other calls on this leg that are still around.
CancelNotRequiredCallLegs(CallCancelCause.NormalClearing);
}
else
{
// Call already answered or cancelled, hangup (send BYE).
FireProxyLogEvent(new SIPMonitorConsoleEvent(SIPMonitorServerTypesEnum.AppServer, SIPMonitorEventTypesEnum.DialPlan, "Call leg for Google Voice call to " + answeredUAC.CallDescriptor.Uri + " answered but call was already answered or cancelled, hanging up.", m_username));
answeredUAC.SIPDialogue.Hangup(m_sipTransport, m_outboundProxySocket);
}
}
else if (answeredResponse != null && answeredResponse.StatusCode >= 300 && answeredResponse.StatusCode <= 399)
{
ProcessRedirect(answeredUAC, answeredResponse);
}
else if (answeredResponse != null)
{
// This call leg failed, record the failure status and reason.
m_lastFailureStatus = answeredResponse.Status;
m_lastFailureReason = answeredResponse.ReasonPhrase;
if (m_switchCallTransactions != null && answeredUAC.ServerTransaction != null)
{
m_switchCallTransactions.Add(answeredUAC.ServerTransaction);
}
CallLegCompleted();
}
}
catch (Exception excp)
{
logger.Error("Exception ForkCall UACCallAnswered. " + excp);
}
}
void transport_SIPResponseInTraceEvent(SIPEndPoint localEndPoint, SIPEndPoint fromEndPoint, SIPResponse sipResponse)
{
logger.LogDebug("Response In: " + localEndPoint + "<-" + fromEndPoint.ToString() + "\n" + sipResponse.ToString());
}
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);
}
}
static void Main(string[] args)
{
Console.WriteLine("SIPSorcery SIP to WebRTC example.");
Console.WriteLine("Press ctrl-c to exit.");
// Plumbing code to facilitate a graceful exit.
CancellationTokenSource exitCts = new CancellationTokenSource(); // Cancellation token to stop the SIP transport and RTP stream.
AddConsoleLogger();
// Start web socket.
Console.WriteLine("Starting web socket server...");
_webSocketServer = new WebSocketServer(IPAddress.Any, WEBSOCKET_PORT, true);
_webSocketServer.SslConfiguration.ServerCertificate = new X509Certificate2(WEBSOCKET_CERTIFICATE_PATH);
_webSocketServer.SslConfiguration.CheckCertificateRevocation = false;
//_webSocketServer.Log.Level = WebSocketSharp.LogLevel.Debug;
_webSocketServer.AddWebSocketService <SDPExchange>("/", (sdpExchanger) =>
{
sdpExchanger.WebSocketOpened += SendSDPOffer;
sdpExchanger.SDPAnswerReceived += SDPAnswerReceived;
});
_webSocketServer.Start();
Console.WriteLine($"Waiting for browser web socket connection to {_webSocketServer.Address}:{_webSocketServer.Port}...");
// Set up a default SIP transport.
var sipTransport = new SIPTransport();
sipTransport.AddSIPChannel(new SIPUDPChannel(new IPEndPoint(IPAddress.Any, SIP_LISTEN_PORT)));
//EnableTraceLogs(sipTransport);
RTPMediaSession RtpMediaSession = null;
// Create a SIP user agent to receive a call from a remote SIP client.
// Wire up event handlers for the different stages of the call.
var userAgent = new SIPUserAgent(sipTransport, null);
// We're only answering SIP calls, not placing them.
userAgent.OnCallHungup += () =>
{
Log.LogInformation($"Call hungup by remote party.");
exitCts.Cancel();
};
userAgent.ServerCallCancelled += (uas) => Log.LogInformation("Incoming call cancelled by caller.");
sipTransport.SIPTransportRequestReceived += async(localEndPoint, remoteEndPoint, sipRequest) =>
{
if (sipRequest.Header.From != null &&
sipRequest.Header.From.FromTag != null &&
sipRequest.Header.To != null &&
sipRequest.Header.To.ToTag != null)
{
// This is an in-dialog request that will be handled directly by a user agent instance.
}
else if (sipRequest.Method == SIPMethodsEnum.INVITE)
{
if (userAgent?.IsCallActive == true)
{
Log.LogWarning($"Busy response returned for incoming call request from {remoteEndPoint}: {sipRequest.StatusLine}.");
// If we are already on a call return a busy response.
UASInviteTransaction uasTransaction = new UASInviteTransaction(sipTransport, sipRequest, null);
SIPResponse busyResponse = SIPResponse.GetResponse(sipRequest, SIPResponseStatusCodesEnum.BusyHere, null);
uasTransaction.SendFinalResponse(busyResponse);
}
else
{
Log.LogInformation($"Incoming call request from {remoteEndPoint}: {sipRequest.StatusLine}.");
var incomingCall = userAgent.AcceptCall(sipRequest);
RtpMediaSession = new RTPMediaSession(SDPMediaTypesEnum.audio, new SDPMediaFormat(SDPMediaFormatsEnum.PCMU), AddressFamily.InterNetwork);
await userAgent.Answer(incomingCall, RtpMediaSession);
RtpMediaSession.OnRtpPacketReceived += (mediaType, rtpPacket) => OnMediaSampleReady?.Invoke(mediaType, rtpPacket.Header.Timestamp, rtpPacket.Payload);
Log.LogInformation($"Answered incoming call from {sipRequest.Header.From.FriendlyDescription()} at {remoteEndPoint}.");
}
}
else
{
Log.LogDebug($"SIP {sipRequest.Method} request received but no processing has been set up for it, rejecting.");
SIPResponse notAllowedResponse = SIPResponse.GetResponse(sipRequest, SIPResponseStatusCodesEnum.MethodNotAllowed, null);
await sipTransport.SendResponseAsync(notAllowedResponse);
}
};
// Ctrl-c will gracefully exit the call at any point.
Console.CancelKeyPress += delegate(object sender, ConsoleCancelEventArgs e)
{
e.Cancel = true;
exitCts.Cancel();
};
// Wait for a signal saying the call failed, was cancelled with ctrl-c or completed.
exitCts.Token.WaitHandle.WaitOne();
#region Cleanup.
Log.LogInformation("Exiting...");
RtpMediaSession?.Close();
if (userAgent != null)
{
if (userAgent.IsCallActive)
{
Log.LogInformation($"Hanging up call to {userAgent?.CallDescriptor?.To}.");
userAgent.Hangup();
}
// Give the BYE or CANCEL request time to be transmitted.
Log.LogInformation("Waiting 1s for call to clean up...");
Task.Delay(1000).Wait();
}
SIPSorcery.Net.DNSManager.Stop();
if (sipTransport != null)
{
Log.LogInformation("Shutting down SIP transport...");
sipTransport.Shutdown();
}
#endregion
}
public SIPMonitorConsoleEvent(SIPMonitorServerTypesEnum serverType, SIPMonitorEventTypesEnum eventType, string message, SIPRequest sipRequest, SIPResponse sipResponse, SIPEndPoint localEndPoint, SIPEndPoint remoteEndPoint, SIPCallDirection callDirection)
{
m_serialisationPrefix = SERIALISATION_PREFIX;
ClientType = SIPMonitorClientTypesEnum.Console;
ServerType = serverType;
EventType = eventType;
Message = message;
RemoteEndPoint = remoteEndPoint;
ServerEndPoint = localEndPoint;
Created = DateTimeOffset.UtcNow;
#if !SILVERLIGHT
ProcessID = Process.GetCurrentProcess().Id;
#endif
string dirn = (callDirection == SIPCallDirection.In) ? CALLDIRECTION_IN_STRING : CALLDIRECTION_OUT_STRING;
if (sipRequest != null)
{
Message = "REQUEST (" + Created.ToString("HH:mm:ss:fff") + "): " + localEndPoint + dirn + remoteEndPoint + "\r\n" + sipRequest.ToString();
}
else if (sipResponse != null)
{
Message = "RESPONSE (" + Created.ToString("HH:mm:ss:fff") + "): " + localEndPoint + dirn + remoteEndPoint + "\r\n" + sipResponse.ToString();
}
}
/// <summary>
/// Handler for processing incoming SIP requests.
/// </summary>
/// <param name="localSIPEndPoint">The end point the request was received on.</param>
/// <param name="remoteEndPoint">The end point the request came from.</param>
/// <param name="sipRequest">The SIP request received.</param>
private void SIPTransportRequestReceived(SIPEndPoint localSIPEndPoint, SIPEndPoint remoteEndPoint, SIPRequest sipRequest)
{
if (sipRequest.Method == SIPMethodsEnum.BYE)
{
if (m_uac != null && m_uac.SIPDialogue != null && sipRequest.Header.CallId == m_uac.SIPDialogue.CallId)
{
// Call has been hungup by remote end.
StatusMessage("Call hungup by remote end.");
SIPNonInviteTransaction byeTransaction = m_sipTransport.CreateNonInviteTransaction(sipRequest, remoteEndPoint, localSIPEndPoint, null);
SIPResponse byeResponse = SIPTransport.GetResponse(sipRequest, SIPResponseStatusCodesEnum.Ok, null);
byeTransaction.SendFinalResponse(byeResponse);
CallFinished();
}
else if (m_uas != null && m_uas.SIPDialogue != null && sipRequest.Header.CallId == m_uas.SIPDialogue.CallId)
{
// Call has been hungup by remote end.
StatusMessage("Call hungup.");
SIPNonInviteTransaction byeTransaction = m_sipTransport.CreateNonInviteTransaction(sipRequest, remoteEndPoint, localSIPEndPoint, null);
SIPResponse byeResponse = SIPTransport.GetResponse(sipRequest, SIPResponseStatusCodesEnum.Ok, null);
byeTransaction.SendFinalResponse(byeResponse);
CallFinished();
}
else
{
logger.Debug("Unmatched BYE request received for " + sipRequest.URI.ToString() + ".");
SIPResponse noCallLegResponse = SIPTransport.GetResponse(sipRequest, SIPResponseStatusCodesEnum.CallLegTransactionDoesNotExist, null);
m_sipTransport.SendResponse(noCallLegResponse);
}
}
else if (sipRequest.Method == SIPMethodsEnum.INVITE)
{
StatusMessage("Incoming call request: " + localSIPEndPoint + "<-" + remoteEndPoint + " " + sipRequest.URI.ToString() + ".");
UASInviteTransaction uasTransaction = m_sipTransport.CreateUASTransaction(sipRequest, remoteEndPoint, localSIPEndPoint, null);
m_uas = new SIPServerUserAgent(m_sipTransport, null, null, null, SIPCallDirection.In, null, null, null, uasTransaction);
m_uas.CallCancelled += UASCallCancelled;
m_uas.Progress(SIPResponseStatusCodesEnum.Trying, null, null, null, null);
m_uas.Progress(SIPResponseStatusCodesEnum.Ringing, null, null, null, null);
IncomingCall();
}
else if (sipRequest.Method == SIPMethodsEnum.CANCEL)
{
UASInviteTransaction inviteTransaction = (UASInviteTransaction)m_sipTransport.GetTransaction(SIPTransaction.GetRequestTransactionId(sipRequest.Header.Vias.TopViaHeader.Branch, SIPMethodsEnum.INVITE));
if (inviteTransaction != null)
{
StatusMessage("Call was cancelled by remote end.");
SIPCancelTransaction cancelTransaction = m_sipTransport.CreateCancelTransaction(sipRequest, remoteEndPoint, localSIPEndPoint, inviteTransaction);
cancelTransaction.GotRequest(localSIPEndPoint, remoteEndPoint, sipRequest);
}
else
{
logger.Debug("No matching transaction was found for CANCEL to " + sipRequest.URI.ToString() + ".");
SIPResponse noCallLegResponse = SIPTransport.GetResponse(sipRequest, SIPResponseStatusCodesEnum.CallLegTransactionDoesNotExist, null);
m_sipTransport.SendResponse(noCallLegResponse);
}
CallFinished();
}
else
{
logger.Debug("SIP " + sipRequest.Method + " request received but no processing has been set up for it, rejecting.");
SIPResponse notAllowedResponse = SIPTransport.GetResponse(sipRequest, SIPResponseStatusCodesEnum.MethodNotAllowed, null);
m_sipTransport.SendResponse(notAllowedResponse);
}
}
static void Main()
{
Console.WriteLine("SIPSorcery client user agent example.");
Console.WriteLine("Press ctrl-c to exit.");
// Plumbing code to facilitate a graceful exit.
CancellationTokenSource rtpCts = new CancellationTokenSource(); // Cancellation token to stop the RTP stream.
bool isCallHungup = false;
bool hasCallFailed = false;
AddConsoleLogger();
SIPURI callUri = SIPURI.ParseSIPURI(DEFAULT_DESTINATION_SIP_URI);
Log.LogInformation($"Call destination {callUri}.");
// Set up a default SIP transport.
var sipTransport = new SIPTransport();
sipTransport.AddSIPChannel(new SIPUDPChannel(new IPEndPoint(IPAddress.Any, 0)));
// Un/comment this line to see/hide each SIP message sent and received.
EnableTraceLogs(sipTransport);
// Note this relies on the callURI host being an IP address. If it's a hostname a DNS lookup is required.
IPAddress localIPAddress = NetServices.GetLocalAddressForRemote(callUri.ToSIPEndPoint().Address);
// Initialise an RTP session to receive the RTP packets from the remote SIP server.
var rtpSession = new RTPMediaSession(SDPMediaTypesEnum.audio, (int)SDPMediaFormatsEnum.PCMU, localIPAddress.AddressFamily);
var offerSDP = rtpSession.GetSDP(localIPAddress);
// Create a client user agent to place a call to a remote SIP server along with event handlers for the different stages of the call.
var uac = new SIPClientUserAgent(sipTransport);
uac.CallTrying += (uac, resp) =>
{
Log.LogInformation($"{uac.CallDescriptor.To} Trying: {resp.StatusCode} {resp.ReasonPhrase}.");
};
uac.CallRinging += (uac, resp) => Log.LogInformation($"{uac.CallDescriptor.To} Ringing: {resp.StatusCode} {resp.ReasonPhrase}.");
uac.CallFailed += (uac, err) =>
{
Log.LogWarning($"{uac.CallDescriptor.To} Failed: {err}");
hasCallFailed = true;
};
uac.CallAnswered += (uac, resp) =>
{
if (resp.Status == SIPResponseStatusCodesEnum.Ok)
{
Log.LogInformation($"{uac.CallDescriptor.To} Answered: {resp.StatusCode} {resp.ReasonPhrase}.");
rtpSession.SetRemoteSDP(SDP.ParseSDPDescription(resp.Body));
Log.LogDebug($"Remote RTP socket {rtpSession.DestinationEndPoint}.");
}
else
{
Log.LogWarning($"{uac.CallDescriptor.To} Answered: {resp.StatusCode} {resp.ReasonPhrase}.");
}
};
// The only incoming request that needs to be explicitly handled for this example is if the remote end hangs up the call.
sipTransport.SIPTransportRequestReceived += async(SIPEndPoint localSIPEndPoint, SIPEndPoint remoteEndPoint, SIPRequest sipRequest) =>
{
if (sipRequest.Method == SIPMethodsEnum.BYE)
{
SIPResponse okResponse = SIPResponse.GetResponse(sipRequest, SIPResponseStatusCodesEnum.Ok, null);
await sipTransport.SendResponseAsync(okResponse);
if (uac.IsUACAnswered)
{
Log.LogInformation("Call was hungup by remote server.");
isCallHungup = true;
rtpCts.Cancel();
}
}
};
// Wire up the RTP receive session to the default speaker.
var(audioOutEvent, audioOutProvider) = GetAudioOutputDevice();
rtpSession.OnRtpPacketReceived += (rtpPacket) =>
{
var sample = rtpPacket.Payload;
for (int index = 0; index < sample.Length; index++)
{
short pcm = NAudio.Codecs.MuLawDecoder.MuLawToLinearSample(sample[index]);
byte[] pcmSample = new byte[] { (byte)(pcm & 0xFF), (byte)(pcm >> 8) };
audioOutProvider.AddSamples(pcmSample, 0, 2);
}
};
// Send audio packets (in this case silence) to the callee.
Task.Run(() => SendSilence(rtpSession, rtpCts));
// Start the thread that places the call.
SIPCallDescriptor callDescriptor = new SIPCallDescriptor(
SIPConstants.SIP_DEFAULT_USERNAME,
null,
callUri.ToString(),
SIPConstants.SIP_DEFAULT_FROMURI,
null, null, null, null,
SIPCallDirection.Out,
SDP.SDP_MIME_CONTENTTYPE,
offerSDP.ToString(),
null);
uac.Call(callDescriptor);
// Ctrl-c will gracefully exit the call at any point.
Console.CancelKeyPress += delegate(object sender, ConsoleCancelEventArgs e)
{
e.Cancel = true;
rtpCts.Cancel();
};
// Give the call some time to answer.
Task.Delay(3000).Wait();
// Send some DTMF key presses via RTP events.
var dtmf5 = new RTPEvent(0x05, false, RTPEvent.DEFAULT_VOLUME, 1200, RTPMediaSession.DTMF_EVENT_PAYLOAD_ID);
rtpSession.SendDtmfEvent(dtmf5, rtpCts.Token).Wait();
Task.Delay(2000, rtpCts.Token).Wait();
var dtmf9 = new RTPEvent(0x09, false, RTPEvent.DEFAULT_VOLUME, 1200, RTPMediaSession.DTMF_EVENT_PAYLOAD_ID);
rtpSession.SendDtmfEvent(dtmf9, rtpCts.Token).Wait();
Task.Delay(2000, rtpCts.Token).Wait();
var dtmf2 = new RTPEvent(0x02, false, RTPEvent.DEFAULT_VOLUME, 1200, RTPMediaSession.DTMF_EVENT_PAYLOAD_ID);
rtpSession.SendDtmfEvent(dtmf2, rtpCts.Token).Wait();
Task.Delay(2000, rtpCts.Token).ContinueWith((task) => { }).Wait(); // Don't care about the exception if the cancellation token is set.
Log.LogInformation("Exiting...");
rtpCts.Cancel();
audioOutEvent?.Stop();
rtpSession.CloseSession(null);
if (!isCallHungup && uac != null)
{
if (uac.IsUACAnswered)
{
Log.LogInformation($"Hanging up call to {uac.CallDescriptor.To}.");
uac.Hangup();
}
else if (!hasCallFailed)
{
Log.LogInformation($"Cancelling call to {uac.CallDescriptor.To}.");
uac.Cancel();
}
// Give the BYE or CANCEL request time to be transmitted.
Log.LogInformation("Waiting 1s for call to clean up...");
Task.Delay(1000).Wait();
}
SIPSorcery.Net.DNSManager.Stop();
if (sipTransport != null)
{
Log.LogInformation("Shutting down SIP transport...");
sipTransport.Shutdown();
}
}
private void SIPResponseOutTraceEvent(SIPEndPoint localEP, SIPEndPoint remoteEP, SIPResponse sipResponse)
{
logger.LogDebug($"Response Sent {localEP}<-{remoteEP}: {sipResponse.ShortDescription}.");
if (_homerSIPClient != null)
{
var hepBuffer = HepPacket.GetBytes(localEP, remoteEP, DateTime.Now, 333, "myHep", sipResponse.ToString());
_homerSIPClient.SendAsync(hepBuffer, hepBuffer.Length, HOMER_SERVER_ADDRESS, HOMER_SERVER_PORT);
}
}
private void ByeServerFinalResponseReceived(SIPEndPoint localSIPEndPoint, SIPEndPoint remoteEndPoint, SIPTransaction sipTransaction, SIPResponse sipResponse)
{
try
{
Log_External(new SIPMonitorConsoleEvent(SIPMonitorServerTypesEnum.UserAgentServer, SIPMonitorEventTypesEnum.DialPlan, "Response " + sipResponse.StatusCode + " " + sipResponse.ReasonPhrase + " for " + sipTransaction.TransactionRequest.URI.ToString() + ".", Owner));
SIPNonInviteTransaction byeTransaction = sipTransaction as SIPNonInviteTransaction;
byeTransaction.NonInviteTransactionFinalResponseReceived -= ByeServerFinalResponseReceived;
if ((sipResponse.Status == SIPResponseStatusCodesEnum.ProxyAuthenticationRequired || sipResponse.Status == SIPResponseStatusCodesEnum.Unauthorised) && SIPAccount != null)
{
// Resend BYE with credentials.
SIPAuthorisationDigest authRequest = sipResponse.Header.AuthenticationHeader.SIPDigest;
SIPURI contactUri = sipResponse.Header.Contact.Any() ? sipResponse.Header.Contact[0].ContactURI : sipResponse.Header.From.FromURI;
authRequest.SetCredentials(SIPAccount.SIPUsername, SIPAccount.SIPPassword, contactUri.ToString(), SIPMethodsEnum.BYE.ToString());
SIPRequest authByeRequest = byeTransaction.TransactionRequest;
authByeRequest.Header.AuthenticationHeader = new SIPAuthenticationHeader(authRequest);
authByeRequest.Header.AuthenticationHeader.SIPDigest.Response = authRequest.Digest;
authByeRequest.Header.Vias.TopViaHeader.Branch = CallProperties.CreateBranchId();
authByeRequest.Header.CSeq = authByeRequest.Header.CSeq + 1;
SIPNonInviteTransaction bTransaction = m_sipTransport.CreateNonInviteTransaction(authByeRequest, null, localSIPEndPoint, null);
bTransaction.SendReliableRequest();
}
}
catch (Exception excp)
{
Log_External(new SIPMonitorConsoleEvent(SIPMonitorServerTypesEnum.UserAgentClient, SIPMonitorEventTypesEnum.Error, "Exception ByServerFinalResponseReceived. " + excp.Message, Owner));
}
}
/// <summary>
/// The event handler for responses to the initial register request.
/// </summary>
private void ServerResponseReceived(SIPEndPoint localSIPEndPoint, SIPEndPoint remoteEndPoint, SIPTransaction sipTransaction, SIPResponse sipResponse)
{
try
{
Log_External(new SIPMonitorConsoleEvent(SIPMonitorServerTypesEnum.UserAgentClient, SIPMonitorEventTypesEnum.ContactRegisterInProgress, "Server response " + sipResponse.Status + " received for " + m_sipAccountAOR.ToString() + ".", null));
if (sipResponse.Status == SIPResponseStatusCodesEnum.ProxyAuthenticationRequired || sipResponse.Status == SIPResponseStatusCodesEnum.Unauthorised)
{
if (sipResponse.Header.AuthenticationHeader != null)
{
if (m_attempts >= m_maxRegisterAttempts)
{
Log_External(new SIPMonitorConsoleEvent(SIPMonitorServerTypesEnum.UserAgentClient, SIPMonitorEventTypesEnum.ContactRegisterFailed, "Registration to " + m_sipAccountAOR.ToString() + " reached the maximum number of allowed attempts without a failure condition.", null));
m_isRegistered = false;
RegistrationTemporaryFailure?.Invoke(m_sipAccountAOR, "Registration reached the maximum number of allowed attempts.");
m_waitForRegistrationMRE.Set();
}
else
{
m_attempts++;
SIPRequest authenticatedRequest = GetAuthenticatedRegistrationRequest(sipTransaction.TransactionRequest, sipResponse);
SIPEndPoint registrarSIPEndPoint = m_outboundProxy;
if (registrarSIPEndPoint == null)
{
//SIPDNSLookupResult lookupResult = m_sipTransport.GetHostEndPoint(m_registrarHost, false);
SIPURI uri = SIPURI.ParseSIPURIRelaxed(m_registrarHost);
var lookupResult = m_sipTransport.ResolveSIPUriAsync(uri).ConfigureAwait(false).GetAwaiter().GetResult();
if (lookupResult == null)
{
Log_External(new SIPMonitorConsoleEvent(SIPMonitorServerTypesEnum.UserAgentClient, SIPMonitorEventTypesEnum.ContactRegisterFailed, "Could not resolve " + m_registrarHost + ".", null));
}
else
{
registrarSIPEndPoint = lookupResult;
}
}
if (registrarSIPEndPoint == null)
{
logger.LogWarning("SIPRegistrationAgent could not resolve " + m_registrarHost + ".");
RegistrationFailed?.Invoke(m_sipAccountAOR, "Could not resolve " + m_registrarHost + ".");
}
else
{
SIPNonInviteTransaction regAuthTransaction = new SIPNonInviteTransaction(m_sipTransport, authenticatedRequest, registrarSIPEndPoint);
regAuthTransaction.NonInviteTransactionFinalResponseReceived += (lep, rep, tn, rsp) => { ThreadPool.QueueUserWorkItem(delegate { AuthResponseReceived(lep, rep, tn, rsp); }); return(Task.FromResult(SocketError.Success)); };
regAuthTransaction.NonInviteTransactionTimedOut += (tn) => { ThreadPool.QueueUserWorkItem(delegate { RegistrationTimedOut(tn); }); };
m_sipTransport.SendTransaction(regAuthTransaction);
}
}
}
else
{
Log_External(new SIPMonitorConsoleEvent(SIPMonitorServerTypesEnum.UserAgentClient, SIPMonitorEventTypesEnum.ContactRegisterFailed, "Registration failed with " + sipResponse.Status + " but no authentication header was supplied for " + m_sipAccountAOR.ToString() + ".", null));
m_isRegistered = false;
RegistrationTemporaryFailure?.Invoke(m_sipAccountAOR, "Registration failed with " + sipResponse.Status + " but no authentication header was supplied.");
m_waitForRegistrationMRE.Set();
}
}
else
{
if (sipResponse.Status == SIPResponseStatusCodesEnum.Ok)
{
if (m_expiry > 0)
{
m_isRegistered = true;
m_expiry = GetUpdatedExpiry(sipResponse);
RegistrationSuccessful?.Invoke(m_sipAccountAOR);
}
else
{
m_isRegistered = false;
RegistrationRemoved?.Invoke(m_sipAccountAOR);
}
m_waitForRegistrationMRE.Set();
}
else if (sipResponse.Status == SIPResponseStatusCodesEnum.Forbidden || sipResponse.Status == SIPResponseStatusCodesEnum.NotFound)
{
// SIP account does not appear to exist.
Log_External(new SIPMonitorConsoleEvent(SIPMonitorServerTypesEnum.UserAgentClient, SIPMonitorEventTypesEnum.ContactRegisterFailed, "Registration failed with " + sipResponse.Status + " for " + m_sipAccountAOR.ToString() + ", no further registration attempts will be made.", null));
string reasonPhrase = (sipResponse.ReasonPhrase.IsNullOrBlank()) ? sipResponse.Status.ToString() : sipResponse.ReasonPhrase;
RegistrationFailed?.Invoke(m_sipAccountAOR, "Registration failed with " + (int)sipResponse.Status + " " + reasonPhrase + ".");
m_exit = true;
m_waitForRegistrationMRE.Set();
}
else if (sipResponse.Status == SIPResponseStatusCodesEnum.IntervalTooBrief && m_expiry != 0)
{
m_expiry = GetUpdatedExpiryForIntervalTooBrief(sipResponse);
Log_External(new SIPMonitorConsoleEvent(SIPMonitorServerTypesEnum.UserAgentClient, SIPMonitorEventTypesEnum.ContactRegisterInProgress, "Registration for " + m_sipAccountAOR.ToString() + " had a too short expiry, updated to +" + m_expiry + " and trying again.", null));
SendInitialRegister();
}
else
{
Log_External(new SIPMonitorConsoleEvent(SIPMonitorServerTypesEnum.UserAgentClient, SIPMonitorEventTypesEnum.ContactRegisterFailed, "Registration failed with " + sipResponse.Status + " for " + m_sipAccountAOR.ToString() + ".", null));
m_isRegistered = false;
RegistrationTemporaryFailure?.Invoke(m_sipAccountAOR, "Registration failed with " + sipResponse.Status + ".");
m_waitForRegistrationMRE.Set();
}
}
}
catch (Exception excp)
{
logger.LogError("Exception SIPRegistrationUserAgent ServerResponseReceived (" + remoteEndPoint + "). " + excp.Message);
}
}
private void ServerResponseReceived(SIPEndPoint localSIPEndPoint, SIPEndPoint remoteEndPoint, SIPTransaction sipTransaction, SIPResponse sipResponse)
{
try
{
string reasonPhrase = (sipResponse.ReasonPhrase.IsNullOrBlank()) ? sipResponse.Status.ToString() : sipResponse.ReasonPhrase;
Log_External(new SIPMonitorConsoleEvent(SIPMonitorServerTypesEnum.UserAgentClient, SIPMonitorEventTypesEnum.DialPlan, "Server response " + sipResponse.StatusCode + " " + reasonPhrase + " received for " + sipTransaction.TransactionRequest.Method + " to " + m_callDescriptor.Uri + ".", m_owner));
if (sipResponse.Status == SIPResponseStatusCodesEnum.ProxyAuthenticationRequired || sipResponse.Status == SIPResponseStatusCodesEnum.Unauthorised)
{
if (sipResponse.Header.AuthenticationHeader != null)
{
if ((m_callDescriptor.Username != null || m_callDescriptor.AuthUsername != null) && m_callDescriptor.Password != null)
{
SIPRequest authenticatedRequest = GetAuthenticatedRequest(sipTransaction.TransactionRequest, sipResponse);
SIPNonInviteTransaction authTransaction = m_sipTransport.CreateNonInviteTransaction(authenticatedRequest, sipTransaction.RemoteEndPoint, localSIPEndPoint, m_outboundProxy);
authTransaction.NonInviteTransactionFinalResponseReceived += AuthResponseReceived;
authTransaction.NonInviteTransactionTimedOut += RequestTimedOut;
m_sipTransport.SendSIPReliable(authTransaction);
}
else
{
Log_External(new SIPMonitorConsoleEvent(SIPMonitorServerTypesEnum.UserAgentClient, SIPMonitorEventTypesEnum.DialPlan, "Send request received an authentication required response but no credentials were available.", m_owner));
if (ResponseReceived != null)
{
ResponseReceived(sipResponse);
}
}
}
else
{
Log_External(new SIPMonitorConsoleEvent(SIPMonitorServerTypesEnum.UserAgentClient, SIPMonitorEventTypesEnum.DialPlan, "Send request failed with " + sipResponse.StatusCode + " but no authentication header was supplied for " + sipTransaction.TransactionRequest.Method + " to " + m_callDescriptor.Uri + ".", m_owner));
if (ResponseReceived != null)
{
ResponseReceived(sipResponse);
}
}
}
else
{
if (ResponseReceived != null)
{
ResponseReceived(sipResponse);
}
}
}
catch (Exception excp)
{
logger.Error("Exception SIPNonInviteClientUserAgent ServerResponseReceived (" + remoteEndPoint + "). " + excp.Message);
}
}
private SIPRequest GetAuthenticatedRegistrationRequest(SIPRequest registerRequest, SIPResponse sipResponse)
{
try
{
SIPAuthorisationDigest authRequest = sipResponse.Header.AuthenticationHeader.SIPDigest;
string username = (m_authUsername != null) ? m_authUsername : m_sipAccountAOR.User;
authRequest.SetCredentials(username, m_password, registerRequest.URI.ToString(), SIPMethodsEnum.REGISTER.ToString());
if (!this.m_realm.IsNullOrBlank())
{
authRequest.Realm = this.m_realm;
}
SIPRequest regRequest = registerRequest.Copy();
regRequest.SetSendFromHints(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;
return(regRequest);
}
catch (Exception excp)
{
logger.LogError("Exception GetAuthenticatedRegistrationRequest. " + excp.Message);
throw excp;
}
}
private void TransactionFinalResponseReceived(IPEndPoint localEndPoint, IPEndPoint remoteEndPoint, SIPTransaction sipTransaction, SIPResponse sipResponse)
{
m_lastFinalResponse = sipResponse;
m_waitForSIPFinalResponse.Set();
}
static void Main()
{
Console.WriteLine("SIPSorcery client user agent example.");
Console.WriteLine("Press ctrl-c to exit.");
CancellationTokenSource exitCts = new CancellationTokenSource(); // Cancellation token to stop the SIP transport and RTP stream.
AddConsoleLogger();
// Set up a default SIP transport.
var sipTransport = new SIPTransport();
sipTransport.AddSIPChannel(new SIPUDPChannel(new IPEndPoint(IPAddress.Any, SIP_LISTEN_PORT)));
// Un/comment this line to see/hide each SIP message sent and received.
EnableTraceLogs(sipTransport);
// To keep things a bit simpler this example only supports a single call at a time and the SIP server user agent
// acts as a singleton
SIPUserAgent userAgent = new SIPUserAgent(sipTransport, null);
CancellationTokenSource rtpCts = null; // Cancellation token to stop the RTP stream.
Socket rtpSocket = null;
Socket controlSocket = null;
// Because this is a server user agent the SIP transport must start listening for client user agents.
sipTransport.SIPTransportRequestReceived += (SIPEndPoint localSIPEndPoint, SIPEndPoint remoteEndPoint, SIPRequest sipRequest) =>
{
try
{
if (sipRequest.Header.From != null &&
sipRequest.Header.From.FromTag != null &&
sipRequest.Header.To != null &&
sipRequest.Header.To.ToTag != null)
{
userAgent.InDialogRequestReceivedAsync(sipRequest).Wait();
}
if (sipRequest.Method == SIPMethodsEnum.INVITE)
{
SIPSorcery.Sys.Log.Logger.LogInformation($"Incoming call request: {localSIPEndPoint}<-{remoteEndPoint} {sipRequest.URI}.");
// Check there's a codec we support in the INVITE offer.
var offerSdp = SDP.ParseSDPDescription(sipRequest.Body);
IPEndPoint dstRtpEndPoint = SDP.GetSDPRTPEndPoint(sipRequest.Body);
RTPSession rtpSession = null;
string audioFile = null;
if (offerSdp.Media.Any(x => x.Media == SDPMediaTypesEnum.audio && x.HasMediaFormat((int)RTPPayloadTypesEnum.PCMU)))
{
Log.LogDebug($"Using PCMU RTP media type and audio file {AUDIO_FILE_PCMU}.");
rtpSession = new RTPSession((int)RTPPayloadTypesEnum.PCMU, null, null);
audioFile = AUDIO_FILE_PCMU;
}
if (rtpSession == null)
{
// Didn't get a match on the codecs we support.
SIPResponse noMatchingCodecResponse = SIPTransport.GetResponse(sipRequest, SIPResponseStatusCodesEnum.NotAcceptableHere, null);
sipTransport.SendResponse(noMatchingCodecResponse);
}
else
{
// If there's already a call in progress hang it up. Of course this is not ideal for a real softphone or server but it
// means this example can be kept simpler.
if (userAgent?.IsAnswered == true)
{
userAgent?.Hangup();
}
rtpCts?.Cancel();
UASInviteTransaction uasTransaction = sipTransport.CreateUASTransaction(sipRequest, null);
if (userAgent.AcceptCall(uasTransaction))
{
rtpCts = new CancellationTokenSource();
// The RTP socket is listening on IPAddress.Any but the IP address placed into the SDP needs to be one the caller can reach.
IPAddress rtpAddress = NetServices.GetLocalAddressForRemote(dstRtpEndPoint.Address);
// Initialise an RTP session to receive the RTP packets from the remote SIP server.
NetServices.CreateRtpSocket(rtpAddress, RTP_PORT_START, RTP_PORT_END, false, out rtpSocket, out controlSocket);
var rtpRecvSession = new RTPSession((int)RTPPayloadTypesEnum.PCMU, null, null);
var rtpSendSession = new RTPSession((int)RTPPayloadTypesEnum.PCMU, null, null);
rtpSendSession.DestinationEndPoint = dstRtpEndPoint;
rtpRecvSession.OnReceiveFromEndPointChanged += (oldEP, newEP) =>
{
Log.LogDebug($"RTP destination end point changed from {oldEP} to {newEP}.");
rtpSendSession.DestinationEndPoint = newEP;
};
Task.Run(() => RecvRtp(rtpSocket, rtpRecvSession, rtpCts));
Task.Run(() => SendRtp(rtpSocket, rtpSendSession, rtpCts));
userAgent.Answer(GetSDP(rtpSocket.LocalEndPoint as IPEndPoint));
}
}
}
else if (sipRequest.Method == SIPMethodsEnum.SUBSCRIBE)
{
SIPResponse notAllowededResponse = SIPTransport.GetResponse(sipRequest, SIPResponseStatusCodesEnum.MethodNotAllowed, null);
sipTransport.SendResponse(notAllowededResponse);
}
else if (sipRequest.Method == SIPMethodsEnum.OPTIONS || sipRequest.Method == SIPMethodsEnum.REGISTER)
{
SIPResponse optionsResponse = SIPTransport.GetResponse(sipRequest, SIPResponseStatusCodesEnum.Ok, null);
sipTransport.SendResponse(optionsResponse);
}
}
catch (Exception reqExcp)
{
SIPSorcery.Sys.Log.Logger.LogWarning($"Exception handling {sipRequest.Method}. {reqExcp.Message}");
}
};
// Ctrl-c will gracefully exit the call at any point.
Console.CancelKeyPress += delegate(object sender, ConsoleCancelEventArgs e)
{
e.Cancel = true;
exitCts.Cancel();
rtpCts?.Cancel();
};
// At this point the call has been initiated and everything will be handled in an event handler.
Task.Run(async() =>
{
try
{
while (!exitCts.Token.WaitHandle.WaitOne(0))
{
var keyProps = Console.ReadKey();
if (keyProps.KeyChar == 't')
{
// Initiate a transfer.
bool transferResult = await userAgent.Transfer(SIPURI.ParseSIPURI(TRANSFER_DESTINATION_SIP_URI), new TimeSpan(0, 0, TRANSFER_TIMEOUT_SECONDS), exitCts.Token);
if (transferResult)
{
// If the transfer was accepted the original call will already have been hungup.
userAgent = null;
exitCts.Cancel();
}
else
{
Log.LogWarning($"Transfer to {TRANSFER_DESTINATION_SIP_URI} failed.");
}
}
else if (keyProps.KeyChar == 'q')
{
// Quit application.
exitCts.Cancel();
}
}
}
catch (Exception excp)
{
Log.LogError($"Exception Key Press listener. {excp.Message}.");
}
});
// Wait for a signal saying the call failed, was cancelled with ctrl-c or completed.
exitCts.Token.WaitHandle.WaitOne();
Log.LogInformation("Exiting...");
rtpSocket?.Close();
controlSocket?.Close();
if (userAgent != null)
{
if (userAgent.IsAnswered)
{
Log.LogInformation($"Hanging up call to {userAgent?.CallDescriptor?.To}.");
userAgent.Hangup();
}
// Give the final request time to be transmitted.
Log.LogInformation("Waiting 1s for call to clean up...");
Task.Delay(1000).Wait();
}
SIPSorcery.Net.DNSManager.Stop();
if (sipTransport != null)
{
Log.LogInformation("Shutting down SIP transport...");
sipTransport.Shutdown();
}
}
/// <summary>
/// The event handler for responses to the authenticated register request.
/// </summary>
private void AuthResponseReceived(SIPEndPoint localSIPEndPoint, SIPEndPoint remoteEndPoint, SIPTransaction sipTransaction, SIPResponse sipResponse)
{
try
{
Log_External(new SIPMonitorConsoleEvent(SIPMonitorServerTypesEnum.UserAgentClient, SIPMonitorEventTypesEnum.ContactRegisterInProgress, "Server auth response " + sipResponse.Status + " received for " + m_sipAccountAOR.ToString() + ".", m_owner));
if (sipResponse.Status == SIPResponseStatusCodesEnum.Ok)
{
if (m_expiry > 0)
{
m_isRegistered = true;
m_expiry = GetUpdatedExpiry(sipResponse);
//if (sipResponse.Header.SwitchboardToken != null && m_lastServerNonce != null)
//{
// SwitchboardToken = Crypto.SymmetricDecrypt(m_password, m_lastServerNonce, sipResponse.Header.SwitchboardToken);
//}
if (RegistrationSuccessful != null)
{
RegistrationSuccessful(m_sipAccountAOR);
}
}
else
{
m_isRegistered = false;
if (RegistrationRemoved != null)
{
RegistrationRemoved(m_sipAccountAOR);
}
}
m_waitForRegistrationMRE.Set();
}
else if (sipResponse.Status == SIPResponseStatusCodesEnum.IntervalTooBrief && m_expiry != 0)
{
m_expiry = GetUpdatedExpiryForIntervalTooBrief(sipResponse);
Log_External(new SIPMonitorConsoleEvent(SIPMonitorServerTypesEnum.UserAgentClient, SIPMonitorEventTypesEnum.ContactRegisterInProgress, "Registration for " + m_sipAccountAOR.ToString() + " had a too short expiry, updated to +" + m_expiry + " and trying again.", m_owner));
SendInitialRegister();
}
else if (sipResponse.Status == SIPResponseStatusCodesEnum.Forbidden || sipResponse.Status == SIPResponseStatusCodesEnum.NotFound || sipResponse.Status == SIPResponseStatusCodesEnum.PaymentRequired)
{
// SIP account does not appear to exist.
Log_External(new SIPMonitorConsoleEvent(SIPMonitorServerTypesEnum.UserAgentClient, SIPMonitorEventTypesEnum.ContactRegisterFailed, "Registration failed with " + sipResponse.Status + " for " + m_sipAccountAOR.ToString() + ", no further registration attempts will be made.", m_owner));
string reasonPhrase = (sipResponse.ReasonPhrase.IsNullOrBlank()) ? sipResponse.Status.ToString() : sipResponse.ReasonPhrase;
if (RegistrationFailed != null)
{
RegistrationFailed(m_sipAccountAOR, "Registration failed with " + (int)sipResponse.Status + " " + reasonPhrase + ".");
}
m_exit = true;
m_waitForRegistrationMRE.Set();
}
else if (sipResponse.Status == SIPResponseStatusCodesEnum.ProxyAuthenticationRequired || sipResponse.Status == SIPResponseStatusCodesEnum.Unauthorised)
{
// SIP account credentials failed.
Log_External(new SIPMonitorConsoleEvent(SIPMonitorServerTypesEnum.UserAgentClient, SIPMonitorEventTypesEnum.ContactRegisterFailed, "Registration failed with " + sipResponse.Status + " for " + m_sipAccountAOR.ToString() + ", no further registration attempts will be made.", m_owner));
string reasonPhrase = (sipResponse.ReasonPhrase.IsNullOrBlank()) ? sipResponse.Status.ToString() : sipResponse.ReasonPhrase;
if (RegistrationFailed != null)
{
RegistrationFailed(m_sipAccountAOR, "Registration failed with " + (int)sipResponse.Status + " " + reasonPhrase + ".");
}
m_exit = true;
m_waitForRegistrationMRE.Set();
}
else
{
Log_External(new SIPMonitorConsoleEvent(SIPMonitorServerTypesEnum.UserAgentClient, SIPMonitorEventTypesEnum.ContactRegisterFailed, "Registration failed with " + sipResponse.Status + " for " + m_sipAccountAOR.ToString() + ".", m_owner));
m_isRegistered = false;
if (RegistrationTemporaryFailure != null)
{
RegistrationTemporaryFailure(m_sipAccountAOR, "Registration failed with " + sipResponse.Status + ".");
}
m_waitForRegistrationMRE.Set();
}
}
catch (Exception excp)
{
logger.Error("Exception SIPRegistrationUserAgent AuthResponseReceived. " + excp.Message);
}
}
static void Main()
{
Console.WriteLine("SIPSorcery Attended Transfer example.");
Console.WriteLine("Press 'c' to place a call to the default destination.");
Console.WriteLine("Place two simultaneous SIP calls to this program and then press 't'.");
Console.WriteLine("Press 'q' or ctrl-c to exit.");
// Plumbing code to facilitate a graceful exit.
CancellationTokenSource exitCts = new CancellationTokenSource(); // Cancellation token to stop the SIP transport and RTP stream.
AddConsoleLogger();
// Set up a default SIP transport.
var sipTransport = new SIPTransport();
sipTransport.AddSIPChannel(new SIPUDPChannel(new IPEndPoint(IPAddress.Any, SIP_LISTEN_PORT)));
//EnableTraceLogs(sipTransport);
// Create two user agents. Each gets configured to answer an incoming call.
var userAgent1 = new SIPUserAgent(sipTransport, null);
var userAgent2 = new SIPUserAgent(sipTransport, null);
userAgent1.OnCallHungup += (dialog) => Log.LogInformation($"UA1: Call hungup by remote party.");
userAgent1.ServerCallCancelled += (uas) => Log.LogInformation("UA1: Incoming call cancelled by caller.");
userAgent2.OnCallHungup += (dialog) => Log.LogInformation($"UA2: Call hungup by remote party.");
userAgent2.ServerCallCancelled += (uas) => Log.LogInformation("UA2: Incoming call cancelled by caller.");
userAgent2.OnTransferNotify += (sipFrag) =>
{
if (!string.IsNullOrEmpty(sipFrag))
{
Log.LogInformation($"UA2: Transfer status update: {sipFrag.Trim()}.");
if (sipFrag?.Contains("SIP/2.0 200") == true)
{
// The transfer attempt got a successful answer. Can hangup the call.
userAgent2.Hangup();
exitCts.Cancel();
}
}
};
sipTransport.SIPTransportRequestReceived += async(localEndPoint, remoteEndPoint, sipRequest) =>
{
if (sipRequest.Header.From != null &&
sipRequest.Header.From.FromTag != null &&
sipRequest.Header.To != null &&
sipRequest.Header.To.ToTag != null)
{
// This is an in-dialog request that will be handled directly by a user agent instance.
}
else if (sipRequest.Method == SIPMethodsEnum.INVITE)
{
if (!userAgent1.IsCallActive || !userAgent2.IsCallActive)
{
SIPUserAgent activeAgent = (!userAgent1.IsCallActive) ? userAgent1 : userAgent2;
string agentDesc = (!userAgent1.IsCallActive) ? "UA1" : "UA2";
Log.LogInformation($"{agentDesc}: Incoming call request from {remoteEndPoint}: {sipRequest.StatusLine}.");
var incomingCall = activeAgent.AcceptCall(sipRequest);
var rtpAVSession = new RtpAVSession(new AudioOptions {
AudioSource = AudioSourcesEnum.CaptureDevice
}, null);
await activeAgent.Answer(incomingCall, rtpAVSession);
Log.LogInformation($"{agentDesc}: Answered incoming call from {sipRequest.Header.From.FriendlyDescription()} at {remoteEndPoint}.");
}
else
{
// If both user agents are already on a call return a busy response.
Log.LogWarning($"Busy response returned for incoming call request from {remoteEndPoint}: {sipRequest.StatusLine}.");
UASInviteTransaction uasTransaction = new UASInviteTransaction(sipTransport, sipRequest, null);
SIPResponse busyResponse = SIPResponse.GetResponse(sipRequest, SIPResponseStatusCodesEnum.BusyHere, null);
uasTransaction.SendFinalResponse(busyResponse);
}
}
else
{
Log.LogDebug($"SIP {sipRequest.Method} request received but no processing has been set up for it, rejecting.");
SIPResponse notAllowedResponse = SIPResponse.GetResponse(sipRequest, SIPResponseStatusCodesEnum.MethodNotAllowed, null);
await sipTransport.SendResponseAsync(notAllowedResponse);
}
};
// At this point the call has been initiated and everything will be handled in an event handler.
Task.Run(async() =>
{
try
{
while (!exitCts.Token.WaitHandle.WaitOne(0))
{
var keyProps = Console.ReadKey();
if (keyProps.KeyChar == 'c')
{
// Place an outgoing call using the first free user agent.
SIPUserAgent freeAgent = (!userAgent1.IsCallActive) ? userAgent1 : (!userAgent2.IsCallActive) ? userAgent2 : null;
if (freeAgent != null)
{
var rtpAVSession = new RtpAVSession(new AudioOptions {
AudioSource = AudioSourcesEnum.CaptureDevice
}, null);
bool callResult = await freeAgent.Call(DEFAULT_DESTINATION_SIP_URI, null, null, rtpAVSession);
Log.LogInformation($"Call attempt {((callResult) ? "successfull" : "failed")}.");
}
else
{
Log.LogWarning("Both user agents are already on calls.");
}
}
if (keyProps.KeyChar == 't')
{
// Initiate the attended transfer.
if (userAgent1.IsCallActive && userAgent2.IsCallActive)
{
bool result = await userAgent2.AttendedTransfer(userAgent1.Dialogue, TimeSpan.FromSeconds(TRANSFER_TIMEOUT_SECONDS), exitCts.Token);
if (!result)
{
Log.LogWarning($"Attended transfer failed.");
}
}
else
{
Log.LogWarning("There need to be two active calls before the attended transfer can occur.");
}
}
else if (keyProps.KeyChar == 'q')
{
// Quit application.
exitCts.Cancel();
}
}
}
catch (Exception excp)
{
SIPSorcery.Sys.Log.Logger.LogError($"Exception Key Press listener. {excp.Message}.");
}
});
// Ctrl-c will gracefully exit the call at any point.
Console.CancelKeyPress += delegate(object sender, ConsoleCancelEventArgs e)
{
e.Cancel = true;
exitCts.Cancel();
};
// Wait for a signal saying the call failed, was cancelled with ctrl-c or completed.
exitCts.Token.WaitHandle.WaitOne();
#region Cleanup.
Log.LogInformation("Exiting...");
userAgent1?.Hangup();
userAgent2?.Hangup();
// Give any BYE or CANCEL requests time to be transmitted.
Log.LogInformation("Waiting 1s for calls to be cleaned up...");
Task.Delay(1000).Wait();
if (sipTransport != null)
{
Log.LogInformation("Shutting down SIP transport...");
sipTransport.Shutdown();
}
#endregion
}
public SIPMonitorConsoleEvent(SIPMonitorServerTypesEnum serverType, SIPMonitorEventTypesEnum eventType, string message, SIPRequest sipRequest, SIPResponse sipResponse, SIPEndPoint localEndPoint, SIPEndPoint remoteEndPoint, SIPCallDirection callDirection)
{
m_serialisationPrefix = SERIALISATION_PREFIX;
ClientType = SIPMonitorClientTypesEnum.Console;
ServerType = serverType;
EventType = eventType;
Message = message;
RemoteEndPoint = remoteEndPoint;
ServerEndPoint = localEndPoint;
Created = DateTimeOffset.UtcNow;
#if !SILVERLIGHT
ProcessID = Process.GetCurrentProcess().Id;
#endif
string dirn = (callDirection == SIPCallDirection.In) ? CALLDIRECTION_IN_STRING : CALLDIRECTION_OUT_STRING;
if (sipRequest != null)
{
Message = "REQUEST (" + Created.ToString("HH:mm:ss:fff") + "): " + localEndPoint + dirn + remoteEndPoint + "\r\n" + sipRequest.ToString();
}
else if (sipResponse != null)
{
Message = "RESPONSE (" + Created.ToString("HH:mm:ss:fff") + "): " + localEndPoint + dirn + remoteEndPoint + "\r\n" + sipResponse.ToString();
}
}
void m_serverTransaction_NonInviteTransactionFinalResponseReceived(SIPEndPoint localSIPEndPoint, SIPEndPoint remoteEndPoint, SIPTransaction sipTransaction, SIPResponse sipResponse)
{
if (sipResponse.Status == SIPResponseStatusCodesEnum.Accepted)
{
FireReferAccepted();
}
else if (sipResponse.Status == SIPResponseStatusCodesEnum.Decline)
{
FireReferDenied();
}
else if (sipResponse.Status == SIPResponseStatusCodesEnum.MethodNotAllowed)
{
FireReferDenied();
}
}
