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#if defined(HAVE_CONFIG_H)
#include "config.h"
#endif
#ifndef WIN32
#include <sys/types.h>
#include <sys/socket.h>
#include <arpa/inet.h>
#ifndef __CYGWIN__
# include <netinet/in.h>
# include <arpa/nameser.h>
# include <resolv.h>
#endif
#include <netdb.h>
#include <netinet/in.h>
#else
#include <Winsock2.h>
#include <svcguid.h>
#ifdef USE_IPV6
#include <ws2tcpip.h>
#endif
#endif
#include "rutil/Logger.hxx"
#include "rutil/DnsUtil.hxx"
#include "resip/stack/TransportSelector.hxx"
#include "resip/stack/DnsResult.hxx"
#include "resip/stack/SipMessage.hxx"
#include "resip/stack/StatelessHandler.hxx"
#include "resip/stack/TransactionController.hxx"
#include "resip/stack/TransportFailure.hxx"
#include "rutil/WinLeakCheck.hxx"
using namespace resip;
#define RESIPROCATE_SUBSYSTEM Subsystem::TRANSACTION
StatelessHandler::StatelessHandler(TransactionController& c) : mController(c)
{
}
void
StatelessHandler::process()
{
Message* msg = mController.mStateMacFifo.getNext();
resip_assert(msg);
SipMessage* sip = dynamic_cast<SipMessage*>(msg);
TransportFailure* transport = dynamic_cast<TransportFailure*>(msg);
if (sip)
{
if (sip->const_header(h_Vias).empty())
{
InfoLog(<< "TransactionState::process dropping message with no Via: " << sip->brief());
delete sip;
return;
}
else
{
if (sip->isExternal())
{
DebugLog (<< "Processing sip from wire: " << msg->brief());
Via& via = sip->header(h_Vias).front();
// this is here so that we will reuse the tcp connection
via.param(p_rport).port() = sip->getSource().getPort();
mController.mTuSelector.add(sip, TimeLimitFifo<Message>::InternalElement);
}
else if (sip->isRequest())
{
if (sip->getDestination().mFlowKey)
{
DebugLog (<< "Processing request from TU : " << msg->brief());
mController.mTransportSelector.transmit(sip, sip->getDestination()); // results not used
}
else
{
DebugLog (<< "Processing request from TU : " << msg->brief());
StatelessMessage* stateless = new StatelessMessage(mController.mTransportSelector, sip);
DnsResult* dnsRes = mController.mTransportSelector.createDnsResult(stateless);
mController.mTransportSelector.dnsResolve(dnsRes, sip);
}
}
else // no dns for sip responses
{
resip_assert(sip->isResponse());
DebugLog (<< "Processing response from TU: " << msg->brief());
const Via& via = sip->const_header(h_Vias).front();
int port = via.sentPort();
if (sip->hasForceTarget())
{
resip_assert( /*Unimplemented*/ 0 );
}
else
{
if (via.exists(p_rport) && via.param(p_rport).hasValue())
{
port = via.param(p_rport).port();
}
Tuple destination(via.param(p_received), port, Tuple::toTransport(via.transport()));
mController.mTransportSelector.transmit(sip, destination); // results not used
}
}
}
}
else if (transport)
{
DebugLog (<< "Processing Transport result: " << msg->brief());
InfoLog (<< "Not yet supported");
}
else
{
DebugLog (<< "Dropping: " << msg->brief());
}
}
StatelessMessage::StatelessMessage(TransportSelector& selector, SipMessage* msg) : mSelector(selector), mMsg(msg)
{
}
void
StatelessMessage::rewriteRequest(const Uri& rewrite)
{
resip_assert(mMsg->isRequest());
if (mMsg->const_header(h_RequestLine).uri() != rewrite)
{
InfoLog (<< "Rewriting request-uri to " << rewrite);
mMsg->header(h_RequestLine).uri() = rewrite;
}
}
void
StatelessMessage::handle(DnsResult* result)
{
if (result->available() == DnsResult::Available)
{
Tuple next = result->next();
mSelector.transmit(mMsg, next);
}
delete this;
result->destroy();
}
/* ====================================================================
* The Vovida Software License, Version 1.0
*
* Copyright (c) 2000 Vovida Networks, Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The names "VOCAL", "Vovida Open Communication Application Library",
* and "Vovida Open Communication Application Library (VOCAL)" must
* not be used to endorse or promote products derived from this
* software without prior written permission. For written
* permission, please contact vocal@vovida.org.
*
* 4. Products derived from this software may not be called "VOCAL", nor
* may "VOCAL" appear in their name, without prior written
* permission of Vovida Networks, Inc.
*
* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESSED OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, TITLE AND
* NON-INFRINGEMENT ARE DISCLAIMED. IN NO EVENT SHALL VOVIDA
* NETWORKS, INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT DAMAGES
* IN EXCESS OF $1,000, NOR FOR ANY INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
* USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
* DAMAGE.
*
* ====================================================================
*
* This software consists of voluntary contributions made by Vovida
* Networks, Inc. and many individuals on behalf of Vovida Networks,
* Inc. For more information on Vovida Networks, Inc., please see
* <http://www.vovida.org/>.
*
*/
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