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/*
* Copyright (c) 2011 Tobias Markmann
* Licensed under the simplified BSD license.
* See Documentation/Licenses/BSD-simplified.txt for more information.
*/
#include "PlatformNATTraversalWorker.h"
#include <boost/smart_ptr/make_shared.hpp>
#include <Swiften/Base/Log.h>
#include <Swiften/Network/UPnPNATTraversalGetPublicIPRequest.h>
#include <Swiften/Network/UPnPNATTraversalForwardPortRequest.h>
#include <Swiften/Network/UPnPNATTraversalRemovePortForwardingRequest.h>
#include <Swiften/Network/NATPMPNATTraversalGetPublicIPRequest.h>
#include <Swiften/Network/NATPMPNATTraversalForwardPortRequest.h>
#include <Swiften/Network/NATPMPNATTraversalRemovePortForwardingRequest.h>
namespace Swift {
PlatformNATTraversalWorker::PlatformNATTraversalWorker(EventLoop* eventLoop) : backendType(NotYetDecided), eventLoop(eventLoop), stopRequested(false) {
checkAvailableNATTraversalProtocols();
thread = new boost::thread(boost::bind(&PlatformNATTraversalWorker::run, this));
}
PlatformNATTraversalWorker::~PlatformNATTraversalWorker() {
stopRequested = true;
addRequestToQueue(boost::shared_ptr<PlatformNATTraversalRequest>());
thread->join();
delete thread;
}
boost::shared_ptr<NATTraversalGetPublicIPRequest> PlatformNATTraversalWorker::createGetPublicIPRequest() {
switch(backendType) {
case UPnP:
return boost::make_shared<UPnPNATTraversalGetPublicIPRequest>(this);
case NATPMP:
return boost::make_shared<NATPMPNATTraversalGetPublicIPRequest>(this);
case NotYetDecided:
case None:
break;
}
return boost::shared_ptr<NATTraversalGetPublicIPRequest>();
}
boost::shared_ptr<NATTraversalForwardPortRequest> PlatformNATTraversalWorker::createForwardPortRequest(unsigned int localPort, unsigned int publicPort) {
NATTraversalForwardPortRequest::PortMapping mapping;
mapping.protocol = NATTraversalForwardPortRequest::PortMapping::TCP;
mapping.leaseInSeconds = 60 * 60 * 24;
mapping.localPort = localPort;
mapping.publicPort = publicPort;
switch(backendType) {
case UPnP:
return boost::make_shared<UPnPNATTraversalForwardPortRequest>(mapping, this);
case NATPMP:
return boost::make_shared<NATPMPNATTraversalForwardPortRequest>(mapping, this);
case NotYetDecided:
case None:
break;
}
return boost::shared_ptr<NATTraversalForwardPortRequest>();
}
boost::shared_ptr<NATTraversalRemovePortForwardingRequest> PlatformNATTraversalWorker::createRemovePortForwardingRequest(unsigned int localPort, unsigned int publicPort) {
NATTraversalRemovePortForwardingRequest::PortMapping mapping;
mapping.protocol = NATTraversalRemovePortForwardingRequest::PortMapping::TCP;
mapping.leaseInSeconds = 60 * 60 * 24;
mapping.localPort = localPort;
mapping.publicPort = publicPort;
switch(backendType) {
case UPnP:
return boost::make_shared<UPnPNATTraversalRemovePortForwardingRequest>(mapping, this);
case NATPMP:
return boost::make_shared<NATPMPNATTraversalRemovePortForwardingRequest>(mapping, this);
case NotYetDecided:
case None:
break;
}
return boost::shared_ptr<NATTraversalRemovePortForwardingRequest>();
}
void PlatformNATTraversalWorker::run() {
while (!stopRequested) {
PlatformNATTraversalRequest::ref request;
{
boost::unique_lock<boost::mutex> lock(queueMutex);
while (queue.empty()) {
queueNonEmpty.wait(lock);
}
request = queue.front();
queue.pop_front();
}
// Check whether we don't have a non-null request (used to stop the
// worker)
if (request) {
request->runBlocking();
}
}
}
void PlatformNATTraversalWorker::addRequestToQueue(PlatformNATTraversalRequest::ref request) {
{
boost::lock_guard<boost::mutex> lock(queueMutex);
queue.push_back(request);
}
queueNonEmpty.notify_one();
}
void PlatformNATTraversalWorker::checkAvailableNATTraversalProtocols() {
boost::shared_ptr<UPnPNATTraversalGetPublicIPRequest> upnpRequest = boost::make_shared<UPnPNATTraversalGetPublicIPRequest>(this);
upnpRequest->onResult.connect(boost::bind(&PlatformNATTraversalWorker::handleUPnPGetPublicIPResult, this, _1));
boost::shared_ptr<NATPMPNATTraversalGetPublicIPRequest> natpmpRequest = boost::make_shared<NATPMPNATTraversalGetPublicIPRequest>(this);
natpmpRequest->onResult.connect(boost::bind(&PlatformNATTraversalWorker::handleNATPMPGetPublicIPResult, this, _1));
upnpRequest->run();
natpmpRequest->run();
}
void PlatformNATTraversalWorker::handleUPnPGetPublicIPResult(boost::optional<HostAddress> address) {
if (backendType == NotYetDecided || backendType == None) {
if (address) {
SWIFT_LOG(debug) << "Found UPnP IGD in the local network." << std::endl;
backendType = UPnP;
}
}
}
void PlatformNATTraversalWorker::handleNATPMPGetPublicIPResult(boost::optional<HostAddress> address) {
if (backendType == NotYetDecided || backendType == None) {
if (address) {
SWIFT_LOG(debug) << "Found NAT-PMP device in the local network." << std::endl;
backendType = NATPMP;
}
}
}
}
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Swift