protected override void AfterPhoneProcessedRequest(IInternalSoftPhone softPhone, SipRequestEvent requestEvent)
{
if (requestEvent.Request.CSeq.Command == SipMethods.Invite)
{
_waitingforInviteReceived.Set();
}
}
public void ProcessRequest(SipRequestEvent requestEvent)
{
Console.WriteLine("Received '{0}' message", requestEvent.Request.CSeq.Command);
/*prevent a exception from being thrown*/
requestEvent.IsSent = true;
}
public void ProcessRequest(SipRequestEvent requestEvent)
{
EventAggregator.Instance.Publish(new LogEvent("<<<< [RECEIVED REQUEST] " + SipFormatter.FormatMessageEnvelope(requestEvent.Request)));
if(_siplistener != null) _siplistener.ProcessRequest(requestEvent);
//MainForm.SendMessage(new LogMessage() { Text = "<<<<" + SipFormatter.FormatMessageEnvelope(requestEvent.Response) });
}
public void ProcessRequest(IInternalSoftPhone softPhone, SipRequestEvent requestEvent)
{
ProcessRequestCounter++;
_state.ProcessRequest(softPhone, requestEvent);
_afterProcessRequest(softPhone, requestEvent);
}
public void ProcessRequest(SipRequestEvent requestEvent)
{
var okResponse = requestEvent.Request.CreateResponse(SipResponseCodes.x200_Ok);
var serverTransaction = _receiverProvider.CreateServerTransaction(requestEvent.Request);
serverTransaction.SendResponse(okResponse);
/*instruct the sipprovider that we have already sent the response*/
requestEvent.IsSent = true;
}
public void ProcessRequest(SipRequestEvent requestEvent)
{
var enumerator = _requestHandlers.GetEnumerator();
while(enumerator.MoveNext())
{
enumerator.Current.ProcessRequest(requestEvent);
if (requestEvent.IsHandled) break;
}
}
public void ProcessRequest(SipRequestEvent requestEvent)
{
var response = requestEvent.Request.CreateResponse(SipResponseCodes.x200_Ok);
if(requestEvent.ServerTransaction != null)
{
requestEvent.ServerTransaction.SendResponse(response);
}
else
{
requestEvent.Response = response;
requestEvent.IsHandled = true;
MainForm.SipProvider.SendResponse(requestEvent.Response);
}
}
public void ProcessRequest(SipRequestEvent requestEvent)
{
if (requestEvent.Request.RequestLine.Method == SipMethods.Invite)
{
var inviteTransaction = (SipInviteServerTransaction)_provider.CreateServerTransaction(requestEvent.Request);
var dialog = _provider.CreateServerDialog(inviteTransaction);
/*let the phone of the receiver ring to indicate someone is calling to you+
send back a ringing response to inform to callee, you received the invite*/
WavePlayer player = new WavePlayer(AudioOut.Devices[0]);
player.Play(ResManager.GetStream("ringing.wav"), 10);
var response = CreateRingingResponse(requestEvent.Request);
inviteTransaction.SendResponse(response);
//start timer that does the above untill the dialog state != Early
//the listener is in some state. In this state the callee can answer or cancel the call.
//when it does it goes to another state.
}
else if (requestEvent.Request.RequestLine.Method == SipMethods.Ack &&
requestEvent.Request.CSeq.Command == SipMethods.Invite)
{
/*TODO: */
}
}
public void ProcessRequest(IInternalSoftPhone softPhone, SipRequestEvent requestEvent)
{
string method = requestEvent.Request.RequestLine.Method;
if (method != SipMethods.Cancel)
{
if (_logger.IsDebugEnabled) _logger.Debug("Received request: '{0}'. Request ignored.", method);
return;
}
if (_logger.IsInfoEnabled) _logger.Info("'CANCEL' received. Start processing...");
#region attempt to match transaction
/*terminate pending invite with 487 (assumption: PendingInvite.OriginalRequest= requestEvent.ServerTransaction.Request)*/
if (_logger.IsDebugEnabled) _logger.Debug("Attempting to match 'CANCEL' target-tx against a tx in the ServerTransactionTable...");
var txIdAttempts = CreateTxIdAttempts(requestEvent.Request);
ISipServerTransaction serverTransaction = null;
foreach (var txIdAttempt in txIdAttempts)
{
serverTransaction = softPhone.SipProvider.FindServerTransactionById(txIdAttempt);
if(serverTransaction !=null) break;
}
#endregion
if (serverTransaction == null)
{
#region no match
if (_logger.IsDebugEnabled) _logger.Debug("Could not match 'CANCEL' to an existing transaction. Sending x487 response...");
var cancelResponse = requestEvent.Request.CreateResponse(SipResponseCodes.x481_Call_Transaction_Does_Not_Exist);
var cancelTx = softPhone.SipProvider.CreateServerTransaction(requestEvent.Request);
cancelTx.SendResponse(cancelResponse);
requestEvent.IsSent = true;
if (_logger.IsDebugEnabled) _logger.Debug("x487 response send.");
#endregion
}
else
{
#region matched
#region respond to cancel with ok
if (_logger.IsDebugEnabled) _logger.Debug("'CANCEL' target-tx matched. Answering to cancel with ok...");
var cancelOkResponse = requestEvent.Request.CreateResponse(SipResponseCodes.x200_Ok);
var cancelOkTx = softPhone.SipProvider.CreateServerTransaction(requestEvent.Request);
cancelOkTx.SendResponse(cancelOkResponse);
requestEvent.IsSent = true;
if (_logger.IsDebugEnabled) _logger.Debug("Answered.");
#endregion
#region respond to matched tx with x487
if (serverTransaction.GetId() != softPhone.PendingInvite.InviteServerTransaction.GetId())
{
if (_logger.IsInfoEnabled) _logger.Info("'CANCEL' target-tx does NOT match 'INVITE.' Processing ABORTED. The 'CANCEL' target-tx is expected, to match only to the pending 'INVITE' servertransaction.");
}
else
{
if (_logger.IsDebugEnabled) _logger.Debug("Creating '487-Request terminated' response and sending...");
var requestToCancel = serverTransaction.Request;
var terminateResponse = requestToCancel.CreateResponse(SipResponseCodes.x487_Request_Terminated);
/*terminate pending invite.*/
softPhone.PendingInvite.InviteServerTransaction.SendResponse(terminateResponse);
if (_logger.IsDebugEnabled) _logger.Debug("Response send.");
if (_logger.IsDebugEnabled) _logger.Debug("Changing callstate to 'CANCELLED'.");
softPhone.PendingCall.RaiseCallStateChanged(CallState.Cancelled);
if (_logger.IsInfoEnabled) _logger.Info("'CANCEL' Processed. Transitioning (back) to 'Idle'");
softPhone.ChangeState(softPhone.StateProvider.GetIdle());
}
#endregion
#endregion
}
}
public void ProcessRequest(SipRequestEvent requestEvent)
{
var request = requestEvent.Request;
var requestLine = request.RequestLine;
var toUri = request.To.SipUri;
var aor = toUri.FormatToString();
var newContacts = request.Contacts.ToList();
if (requestLine.Method == SipMethods.Register)
{
if (!string.IsNullOrWhiteSpace(requestLine.Uri.User))
{
/*throw invalid exception bc the user portion for a register request must be empty*/
throw new SipException(SipResponseCodes.x400_Bad_Request, "The sip uri can not contain a user.");
}
/*10.3. 1. The registrar inspects the Request-URI to determine whether it
has access to bindings for the domain identified in the
Request-URI. If not, and if the server also acts as a proxy
server, the server SHOULD forward the request to the addressed
domain, following the general behavior for proxying messages
described in Section 16.*/
/*The registrar inspects the Request-URI to determine whether it
has access to bindings for the domain identified in the Request-URI.
Here we give an exception back to the client because we only supports single domain */
if (requestLine.Uri.Host != _settings.Domain)
{
throw new SipException(SipResponseCodes.x404_Not_Found);
}
if (toUri.Host != _settings.Domain)
{
/*If the address-of-record is not valid for the domain in the Request-URI,
* the registrar MUST send a 404 (Not Found) response and skip the remaining steps.*/
throw new SipException(SipResponseCodes.x404_Not_Found);
}
bool hasWildCard = newContacts.Any(c => c.IsWildCard);
if (hasWildCard)
{
if (IsInvalidWildCardRequest(request))
{
throw new SipException(SipResponseCodes.x400_Bad_Request);
}
/*case: deregister: remove all bindings for the aor */
foreach (var binding in _addressBindingService.GetByAddressOfRecord(aor))
{
if (binding.CallId != request.CallId.Value)
{
_addressBindingService.Remove(binding);
continue;
}
if (request.CSeq.Sequence > binding.CSeq)
{
_addressBindingService.Remove(binding);
}
}
}
/*The registrar extracts the address-of-record from the To header
field of the request. If the address-of-record is not valid
for the domain in the Request-URI, the registrar MUST send a
404 (Not Found) response and skip the remaining steps. The URI
MUST then be converted to a canonical form. To do that, all
URI parameters MUST be removed (including the user-param), and
any escaped characters MUST be converted to their unescaped
form. The result serves as an index into the list of bindings.*/
/* Each binding record records the Call-ID and CSeq values from the request.*/
foreach (var contact in newContacts)
{
if (!SipUtil.IsIPAddress(contact.SipUri.Host))
{
throw new SipException(SipResponseCodes.x400_Bad_Request, "Contact uri must have numeric IP format.");
}
var host = new IPEndPoint(SipUtil.ParseIpAddress(contact.SipUri.Host), contact.SipUri.Port);
int expires = _settings.DefaultExpires;
if (request.Expires != null) expires = request.Expires.Value;
if (contact.Expires.HasValue) expires = contact.Expires.Value;
var newAddressBinding =
new SipAddressBinding(
aor,
host,
request.CSeq.Sequence,
request.CallId.Value,
expires);
if(expires == 0)
{
_addressBindingService.Remove(newAddressBinding);
}
else if (expires < _settings.MinimumExpires)
{
throw new SipException(SipResponseCodes.x423_Interval_Too_Brief);
}
else
{
_addressBindingService.AddOrUpdate(newAddressBinding);
}
}
var okResponse = request.CreateResponse(SipResponseCodes.x200_Ok);
var contactsAddresses = new List<SipContactHeader>();
foreach(var binding in _addressBindingService.GetByAddressOfRecord(aor))
{
var contactAddress = new SipContactHeader();
contactAddress.Expires = (int) (binding.EndTime - DateTime.Now).TotalSeconds;
contactAddress.SipUri = new SipUri()
{
Host = binding.Host.Address.ToString(),
Port = binding.Host.Port
};
contactsAddresses.Add(contactAddress);
}
contactsAddresses.ForEach(okResponse.Contacts.Add);
/*set the response*/
if(requestEvent.ServerTransaction != null)
{
requestEvent.ServerTransaction.SendResponse(okResponse);
requestEvent.IsHandled = true;
requestEvent.IsSent = true;
}
else
{
requestEvent.Response = okResponse;
requestEvent.IsHandled = true;
}
}
}
internal void Update(SipRequestEvent requestEvent)
{
Response = requestEvent.Response;
IsHandled = requestEvent.IsHandled;
IsSent = requestEvent.IsSent;
}
protected virtual void AfterPhoneProcessedRequest(IInternalSoftPhone softPhone, SipRequestEvent requestEvent)
{
}
public void ProcessRequest(SipRequestEvent requestEvent)
{
Console.WriteLine("Received '{0}' request on {1}", requestEvent.Request.CSeq.Command, DateTime.Now.ToString("hh:mm:ss"));
requestEvent.IsSent = true;
}
private void SendErrorResponse(Exception exception, SipRequestEvent requestEvent)
{
Check.Require(exception, "exception");
Check.Require(requestEvent, "requestEvent");
Check.Require(requestEvent.Request, "requestEvent.Request");
var request = requestEvent.Request;
var sipException = exception as SipException;
string responseCode = sipException != null ? sipException.ResponseCode : SipResponseCodes.x500_Server_Internal_Error;
SipResponse response = sipException != null ? _stack.CreateMessageFactory().CreateResponse(request, responseCode) :
_stack.CreateMessageFactory().CreateResponse(request, responseCode + ", " + exception.Message);
if(requestEvent.ServerTransaction != null)
{
requestEvent.ServerTransaction.SendResponse(response);
}
else if (response.Vias.GetTopMost() != null)
{
IPEndPoint ipEndPoint = SipProvider.DetermineSendTo(response);
try
{
_contextSource.SendTo(SipFormatter.FormatMessage(response), ipEndPoint);
if (_responseSentObserver != null) _responseSentObserver.OnNext(response);
}
catch (SocketException err)
{
_logger.Error("Failed to send response to " + ipEndPoint.ToString(), err);
}
}
else
{
_logger.Warn("Response can not be sent. Via TopMost header missing.");
}
}
private void OnIncomingRequestContext(SipContext context)
{
if (_requestReceivedObserver != null) _requestReceivedObserver.OnNext(context.Request);
if (_logger.IsDebugEnabled) _logger.Debug("Validating the request...");
var result = new SipValidator().ValidateMessage(context.Request);
if (!result.IsValid)
{
if (_logger.IsDebugEnabled) _logger.Debug("The received request is not valid. Throwing a sip exception.");
ThrowSipException(result);
}
if (_logger.IsDebugEnabled) _logger.Debug("Request valid.");
/*firewall traversal not supported. SupportFirewalTraversal(context);*/
var requestEvent = new SipRequestEvent(context);
ISipRequestProcessor sipRequestProcessor = _sipListener;
//8.2.2.2: merged requests, not implemented
SipAbstractServerTransaction stx;
if (_logger.IsDebugEnabled) _logger.Debug("Searching the table for a matching tx..");
if(_stxTable.TryGetValue(GetServerTransactionId(context.Request), out stx))
{
if (_logger.IsTraceEnabled) _logger.Trace("Found a matching tx. Setting it as the requestprocessor.");
sipRequestProcessor = stx;
//if (IsDialogInitiatingRequest(stx.Request))
//{
//if (_logger.IsDebugEnabled) _logger.Debug("The received request is an 'INVITE' request. Try setting the dialog on tx...");
//set the dialog, so it can initiate
SipAbstractDialog found;
if(TryGetDialogOnTx(context.Request, out found))
{
requestEvent.Dialog = found;
}
//}
}
else
{
if (_logger.IsDebugEnabled) _logger.Debug("Could not find a matching tx..");
if (_logger.IsDebugEnabled) _logger.Debug("Searching the table for a matching dialog...");
SipAbstractDialog dialog;
if (_dialogTable.TryGetValue(GetDialogId(context.Request, true), out dialog))
{
if (_logger.IsTraceEnabled) _logger.Trace("Found a matching dialog. Setting it as the requestprocessor.");
sipRequestProcessor = dialog;
requestEvent.Dialog = dialog;
}
else
{
if (_logger.IsTraceEnabled) _logger.Trace("Could not find a matching dialog. Using the SipProvider's SipListener as the requestprocessor.");
}
}
try
{
sipRequestProcessor.ProcessRequest(requestEvent);
if (requestEvent.IsSent)
{
if (_logger.IsDebugEnabled) _logger.Debug("Processed '{0}' request. The response has already been sent. Skipping automatic response sending.", requestEvent.Request.RequestLine.Method);
return;
}
if (!ShouldHaveResponse(requestEvent.Request))
{
if(_logger.IsDebugEnabled) _logger.Debug("Processed '{0}' request. The request does not require a response. Skipping automatic response sending.", requestEvent.Request.RequestLine.Method);
return;
}
if(requestEvent.Response == null)
throw new SipCoreException("Response to send can not be null. The ProcessRequest method is supposed to create a response message that is to be sent.");
if (!requestEvent.IsSent)
{
var response = requestEvent.Response;
var remoteEndPoint = SipProvider.DetermineSendTo(response);
_contextSource.SendTo(SipFormatter.FormatMessage(response), remoteEndPoint);
if (_responseSentObserver != null) _responseSentObserver.OnNext(response);
}
}
catch (SipCoreException coreException)
{
throw coreException;
}
catch (SipException sipException)
{
if(ShouldHaveResponse(requestEvent.Request))
SendErrorResponse(sipException, requestEvent);
}
catch (Exception err)
{
_logger.ErrorException("Request failed.", err);
try
{
if (ShouldHaveResponse(requestEvent.Request))
SendErrorResponse(err, requestEvent);
}
catch (Exception errr)
{
_logger.Debug("Failed to send the response.", errr);
}
}
}
public void ProcessRequest(SipRequestEvent requestEvent)
{
string method = requestEvent.Request.RequestLine.Method;
_logger.Debug("Processing request: {0} ...", method);
ValidateSipSchema(requestEvent.Request);
////not sure if this is the right place?
//if (State is IdleState)
//{
// throw new SipException(SipResponseCodes.x486_Busy_Here);
//}
InternalState.ProcessRequest(this, requestEvent);
_logger.Debug("Request processed.");
}
public void ProcessRequest(SipRequestEvent requestEvent)
{
throw new NotImplementedException();
}
public void ProcessRequest(SipRequestEvent requestEvent)
{
OnProcessRequest(requestEvent);
}
public void ProcessRequest(SipRequestEvent requestEvent)
{
Log("Received a request. RequestLine:'{0}'", requestEvent.Request.RequestLine.FormatToString());
if (requestEvent.Request.RequestLine.Method == SipMethods.Invite)
{
Log("Received an INVITE request.");
if (_state == PhoneState.Idle)
{
_inviteRequest = requestEvent.Request;
_ringingRetransmitSubscription = Observable.Timer(TimeSpan.Zero, TimeSpan.FromSeconds(5)).ObserveOn(this).Subscribe((i) =>
{
Log("Sending a ringing response...");
SendRinging();
Log("Ringing response send.");
if(i == 0)
{
GoToState(PhoneState.Ringing);
RefreshDialogForm(_dialog);
}
});
}
else
{
Log("Currently busy...");
//send busy here
}
}
if(_state == PhoneState.Idle)
{
if (requestEvent.Request.RequestLine.Method == SipMethods.Invite)
{
GoToState(PhoneState.Ringing);
_pendingRequestEvent = requestEvent;
this.OnUIThread(() =>
{
//show the name of the caller in the from textboxes.
_txtFromAlias.Text = requestEvent.Request.From.DisplayInfo;
_txtFromAlias.Text = requestEvent.Request.From.DisplayInfo;
//clear all other from-to textboxes
_txtFromUri.Text = ""; requestEvent.Request.From.SipUri.FormatToString();
_txtToUri.Text = _txtToAlias.Text = "";
});
//block the processing thread
_waitHandle.WaitOne(30*1000);
}
}
else if (_state == PhoneState.Ringing)
{
if (requestEvent.Request.RequestLine.Method == SipMethods.Cancel)
{
//TODO: send 487 + stop ringing
GoToState(PhoneState.Idle);
}
}
else if (_state == PhoneState.WaitingForAck)
{
if (requestEvent.Request.RequestLine.Method == SipMethods.Ack)
{
Log("Received an ACK request. Going to 'CALLERESTABLISHED' state");
GoToState(PhoneState.CallerEstablished);
}
}
else if (_state == PhoneState.CallerEstablished)
{
if (requestEvent.Request.RequestLine.Method == SipMethods.Bye)
{
Debugger.Break();
Log("Received an BYE request.");
Log("Sending a OK response...");
/*send ok*/
var okResponse = requestEvent.Request.CreateResponse(SipResponseCodes.x200_Ok);
var serverTransaction = SipProvider.CreateServerTransaction(requestEvent.Request);
serverTransaction.SendResponse(okResponse);
Log("OK response send.");
if (requestEvent.Dialog != null)
{
requestEvent.Dialog.Terminate();
Log("Terminating dialog.");
}
GoToState(PhoneState.Idle);
}
}
}
