public SIPDialogue Answer(string contentType, string body, SIPDialogue answeredDialogue, SIPDialogueTransferModesEnum transferMode)
{
try
{
logger.Debug("SIPB2BUserAgent Answer.");
m_sipDialogue = answeredDialogue;
UASStateChanged?.Invoke(this, SIPResponseStatusCodesEnum.Ok, null);
SIPResponse uasOkResponse = SIPTransport.GetResponse(m_uasTransaction.TransactionRequest, SIPResponseStatusCodesEnum.Ok, null);
m_uasTransaction.SendFinalResponse(uasOkResponse);
m_uasTransaction.ACKReceived(m_blackhole, m_blackhole, null);
SIPResponse uacOkResponse = SIPTransport.GetResponse(m_uacTransaction.TransactionRequest, SIPResponseStatusCodesEnum.Ok, null);
uacOkResponse.Header.Contact = new List <SIPContactHeader>()
{
new SIPContactHeader(null, new SIPURI(SIPSchemesEnum.sip, m_blackhole))
};
m_uacTransaction.GotResponse(m_blackhole, m_blackhole, uacOkResponse);
uacOkResponse.Header.ContentType = contentType;
if (!body.IsNullOrBlank())
{
uacOkResponse.Body = body;
uacOkResponse.Header.ContentLength = body.Length;
}
CallAnswered.Invoke(this, uacOkResponse);
return(null);
}
catch (Exception excp)
{
logger.Error("Exception SIPB2BUSerAgent Answer. " + excp.Message);
throw;
}
}
private void HandleCallAnswered(Answered answered)
{
var eventToStore = new CallAnswered()
{
ConversationId = Guid.Parse(FormatUuid(answered.ConversationUuid))
};
this._session.Events.Append(eventToStore.ConversationId, eventToStore);
}
private void ClientCallAnswered(ISIPClientUserAgent uac, SIPResponse resp)
{
logger.LogDebug($"B2BUserAgent client call answered {resp.ShortDescription}.");
if (resp.Status == SIPResponseStatusCodesEnum.Ok)
{
base.Answer(resp.Header.ContentType, resp.Body, SIPDialogueTransferModesEnum.NotAllowed);
CallAnswered?.Invoke(uac, resp);
}
else
{
var failureResponse = SIPResponse.GetResponse(m_uasTransaction.TransactionRequest, resp.Status, resp.ReasonPhrase);
m_uasTransaction.SendFinalResponse(failureResponse);
CallFailed?.Invoke(uac, failureResponse.ReasonPhrase, failureResponse);
}
}
public void Apply(CallAnswered answered)
{
this.Answered = true;
}
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 + ".");
if (answeredUAC.CallDescriptor.ReinviteDelay > 0)
{
answeredUAC.SIPDialogue.ReinviteDelay = answeredUAC.CallDescriptor.ReinviteDelay;
}
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;
CallAnswered?.Invoke(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);
}
}
private Task <SocketError> ServerFinalResponseReceived(SIPEndPoint localSIPEndPoint, SIPEndPoint remoteEndPoint, SIPTransaction sipTransaction, SIPResponse sipResponse)
{
try
{
logger.LogDebug("Response " + sipResponse.StatusCode + " " + sipResponse.ReasonPhrase + " for " + m_serverTransaction.TransactionRequest.URI.ToString() + ".");
m_serverTransaction.UACInviteTransactionInformationResponseReceived -= ServerInformationResponseReceived;
m_serverTransaction.UACInviteTransactionFinalResponseReceived -= ServerFinalResponseReceived;
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)
{
logger.LogDebug("A cancelled call to " + m_sipCallDescriptor.Uri + " has been answered AND has already been hungup, no further action being taken.");
}
else
{
m_hungupOnCancel = true;
logger.LogDebug("A cancelled call to " + m_sipCallDescriptor.Uri + " has been answered, hanging up.");
if (sipResponse.Header.Contact != null && sipResponse.Header.Contact.Count > 0)
{
SIPURI byeURI = sipResponse.Header.Contact[0].ContactURI;
SIPRequest byeRequest = GetByeRequest(sipResponse, byeURI);
SIPNonInviteTransaction byeTransaction = new SIPNonInviteTransaction(m_sipTransport, byeRequest, m_outboundProxy);
byeTransaction.SendRequest();
}
else
{
logger.LogDebug("No contact header provided on response for cancelled call to " + m_sipCallDescriptor.Uri + " no further action.");
}
}
#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.
logger.LogDebug("Forward leg failed, authentication was requested but no credentials were available.");
CallFailed?.Invoke(this, "Authentication requested when no credentials available", sipResponse);
}
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;
var authRequest = m_serverTransaction.TransactionRequest.DuplicateAndAuthenticate(sipResponse.Header.AuthenticationHeaders,
username, m_sipCallDescriptor.Password);
// Create a new UAC transaction to establish the authenticated server call.
m_serverTransaction = new UACInviteTransaction(m_sipTransport, authRequest, m_outboundProxy);
if (m_serverTransaction.CDR != null)
{
m_serverTransaction.CDR.Updated();
}
m_serverTransaction.UACInviteTransactionInformationResponseReceived += ServerInformationResponseReceived;
m_serverTransaction.UACInviteTransactionFinalResponseReceived += ServerFinalResponseReceived;
m_serverTransaction.UACInviteTransactionFailed += ServerTransactionFailed;
m_serverTransaction.SendInviteRequest();
}
else
{
CallFailed?.Invoke(this, "Authentication with provided credentials failed", sipResponse);
}
}
#endregion
}
else
{
if (sipResponse.StatusCode >= 200 && sipResponse.StatusCode <= 299)
{
m_sipDialogue = new SIPDialogue(m_serverTransaction);
m_sipDialogue.CallDurationLimit = m_sipCallDescriptor.CallDurationLimit;
}
CallAnswered?.Invoke(this, sipResponse);
}
return(Task.FromResult(SocketError.Success));
}
catch (Exception excp)
{
logger.LogDebug("Exception ServerFinalResponseReceived. " + excp);
return(Task.FromResult(SocketError.Fault));
}
}
