/// <summary>
/// The event handler for responses to the authenticated register request.
/// </summary>
private void AuthResponseReceived(SIPEndPoint localSIPEndPoint, SIPEndPoint remoteEndPoint,
SIPTransaction sipTransaction, SIPResponse sipResponse)
{
try
{
logger.LogDebug("Server auth response " + sipResponse.Status + " received for " +
m_sipAccountAOR.ToString() + ".");
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.IntervalTooBrief && m_expiry != 0)
{
m_expiry = GetUpdatedExpiryForIntervalTooBrief(sipResponse);
logger.LogDebug("Registration for " + m_sipAccountAOR.ToString() +
" had a too short expiry, updated to +" + m_expiry + " and trying again.");
SendInitialRegister();
}
else if (sipResponse.Status == SIPResponseStatusCodesEnum.Forbidden ||
sipResponse.Status == SIPResponseStatusCodesEnum.NotFound ||
sipResponse.Status == SIPResponseStatusCodesEnum.PaymentRequired)
{
// SIP account does not appear to exist.
logger.LogWarning("Registration failed with " + sipResponse.Status + " for " +
m_sipAccountAOR.ToString() + ", no further registration attempts will be made.");
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.ProxyAuthenticationRequired ||
sipResponse.Status == SIPResponseStatusCodesEnum.Unauthorised)
{
// SIP account credentials failed.
logger.LogWarning("Registration failed with " + sipResponse.Status + " for " +
m_sipAccountAOR.ToString() + ", no further registration attempts will be made.");
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
{
logger.LogWarning("Registration failed with " + sipResponse.Status + " for " +
m_sipAccountAOR.ToString() + ".");
m_isRegistered = false;
RegistrationTemporaryFailure?.Invoke(m_sipAccountAOR,
"Registration failed with " + sipResponse.Status + ".");
m_waitForRegistrationMRE.Set();
}
}
catch (Exception excp)
{
logger.LogError("Exception SIPRegistrationUserAgent AuthResponseReceived. " + excp.Message);
}
}
/// <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;
RegistrationTemporaryFailure?.Invoke(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;
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.", m_owner));
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.", 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;
RegistrationTemporaryFailure?.Invoke(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 initial register request.
/// </summary>
private void ServerResponseReceived(SIPEndPoint localSIPEndPoint, SIPEndPoint remoteEndPoint,
SIPTransaction sipTransaction, SIPResponse sipResponse)
{
try
{
logger.LogDebug("Server response " + sipResponse.Status + " received for " +
m_sipAccountAOR.ToString() + ".");
if (sipResponse.Status == SIPResponseStatusCodesEnum.ProxyAuthenticationRequired ||
sipResponse.Status == SIPResponseStatusCodesEnum.Unauthorised)
{
if (sipResponse.Header.AuthenticationHeader != null)
{
if (m_attempts >= m_maxRegisterAttempts)
{
logger.LogDebug("Registration to " + m_sipAccountAOR.ToString() +
" reached the maximum number of allowed attempts without a failure condition.");
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)
{
logger.LogWarning("Could not resolve " + m_registrarHost + ".");
}
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
{
logger.LogWarning("Registration failed with " + sipResponse.Status +
" but no authentication header was supplied for " +
m_sipAccountAOR.ToString() + ".");
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.
logger.LogWarning("Registration failed with " + sipResponse.Status + " for " +
m_sipAccountAOR.ToString() +
", no further registration attempts will be made.");
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);
logger.LogWarning("Registration for " + m_sipAccountAOR.ToString() +
" had a too short expiry, updated to +" + m_expiry + " and trying again.");
SendInitialRegister();
}
else
{
logger.LogWarning("Registration failed with " + sipResponse.Status + " for " +
m_sipAccountAOR.ToString() + ".");
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);
}
}
/// <summary>
/// The event handler for responses to the initial register request.
/// </summary>
private void ServerResponseReceived(SIPEndPoint localSIPEndPoint, SIPEndPoint remoteEndPoint, SIPTransaction sipTransaction, SIPResponse sipResponse)
{
try
{
logger.LogDebug($"Server response {sipResponse.Status} received for {m_sipAccountAOR}.");
if (sipResponse.Status == SIPResponseStatusCodesEnum.ProxyAuthenticationRequired || sipResponse.Status == SIPResponseStatusCodesEnum.Unauthorised)
{
if (sipResponse.Header.HasAuthenticationHeader)
{
if (m_attempts >= m_maxRegisterAttempts)
{
logger.LogDebug("Registration to " + m_sipAccountAOR.ToString() + " reached the maximum number of allowed attempts without a failure condition.");
m_isRegistered = false;
RegistrationTemporaryFailure?.Invoke(m_sipAccountAOR, "Registration reached the maximum number of allowed attempts.");
m_waitForRegistrationMRE.Set();
}
else
{
m_attempts++;
string username = (m_authUsername != null) ? m_authUsername : m_sipAccountAOR.User;
var authenticatedRequest = sipTransaction.TransactionRequest.DuplicateAndAuthenticate(
sipResponse.Header.AuthenticationHeaders, username, m_password);
SIPEndPoint registrarSIPEndPoint = m_outboundProxy;
if (registrarSIPEndPoint == null)
{
SIPURI uri = SIPURI.ParseSIPURIRelaxed(m_registrarHost);
var lookupResult = m_sipTransport.ResolveSIPUriAsync(uri).Result;
if (lookupResult == null)
{
logger.LogWarning("Could not resolve " + m_registrarHost + ".");
}
else
{
registrarSIPEndPoint = lookupResult;
}
}
if (registrarSIPEndPoint == null)
{
logger.LogWarning("SIPRegistrationAgent could not resolve " + m_registrarHost + ".");
RegistrationFailed?.Invoke(m_sipAccountAOR, "Could not resolve " + m_registrarHost + ".");
}
else
{
SIPNonInviteTransaction regAuthTransaction = new SIPNonInviteTransaction(m_sipTransport, authenticatedRequest, registrarSIPEndPoint);
regAuthTransaction.NonInviteTransactionFinalResponseReceived += (lep, rep, tn, rsp) =>
{
AuthResponseReceived(lep, rep, tn, rsp);
return(Task.FromResult(SocketError.Success));
};
regAuthTransaction.NonInviteTransactionFailed += RegistrationTransactionFailed;
regAuthTransaction.SendRequest();
}
}
}
else
{
logger.LogWarning($"Registration failed with {sipResponse.Status} but no authentication header was supplied for {m_sipAccountAOR}.");
m_isRegistered = false;
RegistrationTemporaryFailure?.Invoke(m_sipAccountAOR, $"Registration failed with {sipResponse.Status} but no authentication header was supplied.");
m_waitForRegistrationMRE.Set();
}
}
else
{
if (sipResponse.Status == SIPResponseStatusCodesEnum.Ok)
{
if (m_expiry > 0)
{
m_isRegistered = true;
m_expiry = GetUpdatedExpiry(sipResponse);
RegistrationSuccessful?.Invoke(m_sipAccountAOR);
}
else
{
m_isRegistered = false;
RegistrationRemoved?.Invoke(m_sipAccountAOR);
}
m_waitForRegistrationMRE.Set();
}
else if (sipResponse.Status == SIPResponseStatusCodesEnum.Forbidden || sipResponse.Status == SIPResponseStatusCodesEnum.NotFound)
{
// SIP account does not appear to exist.
m_exit = m_exitOnUnequivocalFailure;
logger.LogWarning($"Registration unequivocal failure with {sipResponse.Status} for {m_sipAccountAOR}{(m_exit ? ", no further registration attempts will be made" : "")}.");
string reasonPhrase = (sipResponse.ReasonPhrase.IsNullOrBlank()) ? sipResponse.Status.ToString() : sipResponse.ReasonPhrase;
RegistrationFailed?.Invoke(m_sipAccountAOR, "Registration failed with " + (int)sipResponse.Status + " " + reasonPhrase + ".");
m_waitForRegistrationMRE.Set();
}
else if (sipResponse.Status == SIPResponseStatusCodesEnum.IntervalTooBrief && m_expiry != 0)
{
m_expiry = GetUpdatedExpiryForIntervalTooBrief(sipResponse);
logger.LogWarning("Registration for " + m_sipAccountAOR.ToString() + " had a too short expiry, updated to +" + m_expiry + " and trying again.");
SendInitialRegister();
}
else
{
logger.LogWarning($"Registration failed with {sipResponse.Status} for {m_sipAccountAOR}.");
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}");
}
}
