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/*
* Copyright (c) 2011 Tobias Markmann
* Licensed under the simplified BSD license.
* See Documentation/Licenses/BSD-simplified.txt for more information.
*/
/*
* Copyright (c) 2013-2015 Isode Limited.
* All rights reserved.
* See the COPYING file for more information.
*/
#include <Swiften/FileTransfer/LocalJingleTransportCandidateGenerator.h>
#include <vector>
#include <boost/shared_ptr.hpp>
#include <boost/bind.hpp>
#include <boost/smart_ptr/make_shared.hpp>
#include <Swiften/Base/foreach.h>
#include <Swiften/Base/Log.h>
#include <Swiften/Elements/JingleS5BTransportPayload.h>
#include <Swiften/FileTransfer/SOCKS5BytestreamProxiesManager.h>
#include <Swiften/FileTransfer/SOCKS5BytestreamServerManager.h>
#include <Swiften/FileTransfer/SOCKS5BytestreamServerInitializeRequest.h>
static const unsigned int LOCAL_PREFERENCE = 0;
namespace Swift {
LocalJingleTransportCandidateGenerator::LocalJingleTransportCandidateGenerator(
SOCKS5BytestreamServerManager* s5bServerManager,
SOCKS5BytestreamProxiesManager* s5bProxy,
const JID& ownJID,
IDGenerator* idGenerator,
const FileTransferOptions& options) :
s5bServerManager(s5bServerManager),
s5bProxy(s5bProxy),
ownJID(ownJID),
idGenerator(idGenerator),
options_(options) {
}
LocalJingleTransportCandidateGenerator::~LocalJingleTransportCandidateGenerator() {
SWIFT_LOG_ASSERT(!s5bServerInitializeRequest, warning) << std::endl;
}
void LocalJingleTransportCandidateGenerator::start() {
assert(!s5bServerInitializeRequest);
s5bServerInitializeRequest = s5bServerManager->createInitializeRequest();
s5bServerInitializeRequest->onFinished.connect(
boost::bind(&LocalJingleTransportCandidateGenerator::handleS5BServerInitialized, this, _1));
s5bServerInitializeRequest->start();
}
void LocalJingleTransportCandidateGenerator::stop() {
if (s5bServerInitializeRequest) {
s5bServerInitializeRequest->stop();
s5bServerInitializeRequest.reset();
}
s5bServerManager->stop();
}
void LocalJingleTransportCandidateGenerator::handleS5BServerInitialized(bool success) {
if (success) {
if (options_.isProxiedAllowed()) {
if (s5bProxy->getOrDiscoverS5BProxies()) {
emitOnLocalTransportCandidatesGenerated();
} else {
s5bProxy->onDiscoveredProxiesChanged.connect(boost::bind(&LocalJingleTransportCandidateGenerator::handleDiscoveredProxiesChanged, this));
}
}
else {
emitOnLocalTransportCandidatesGenerated();
}
}
else {
SWIFT_LOG(warning) << "Unable to start SOCKS5 server" << std::endl;
}
s5bServerInitializeRequest->stop();
s5bServerInitializeRequest.reset();
}
void LocalJingleTransportCandidateGenerator::emitOnLocalTransportCandidatesGenerated() {
std::vector<JingleS5BTransportPayload::Candidate> candidates;
if (options_.isDirectAllowed()) {
// get direct candidates
std::vector<HostAddressPort> directCandidates = s5bServerManager->getHostAddressPorts();
foreach(HostAddressPort addressPort, directCandidates) {
JingleS5BTransportPayload::Candidate candidate;
candidate.type = JingleS5BTransportPayload::Candidate::DirectType;
candidate.jid = ownJID;
candidate.hostPort = addressPort;
candidate.priority = 65536 * 126 + LOCAL_PREFERENCE;
candidate.cid = idGenerator->generateID();
candidates.push_back(candidate);
}
}
if (options_.isAssistedAllowed()) {
// get assissted candidates
std::vector<HostAddressPort> assisstedCandidates = s5bServerManager->getAssistedHostAddressPorts();
foreach(HostAddressPort addressPort, assisstedCandidates) {
JingleS5BTransportPayload::Candidate candidate;
candidate.type = JingleS5BTransportPayload::Candidate::AssistedType;
candidate.jid = ownJID;
candidate.hostPort = addressPort;
candidate.priority = 65536 * 120 + LOCAL_PREFERENCE;
candidate.cid = idGenerator->generateID();
candidates.push_back(candidate);
}
}
if (options_.isProxiedAllowed()) {
foreach(S5BProxyRequest::ref proxy, s5bProxy->getOrDiscoverS5BProxies().get()) {
if (proxy->getStreamHost()) { // FIXME: Added this test, because there were cases where this wasn't initialized. Investigate this. (Remko)
JingleS5BTransportPayload::Candidate candidate;
candidate.type = JingleS5BTransportPayload::Candidate::ProxyType;
candidate.jid = (*proxy->getStreamHost()).jid;
HostAddress address = (*proxy->getStreamHost()).host;
assert(address.isValid());
candidate.hostPort = HostAddressPort(address, (*proxy->getStreamHost()).port);
candidate.priority = 65536 * 10 + LOCAL_PREFERENCE;
candidate.cid = idGenerator->generateID();
candidates.push_back(candidate);
}
}
}
onLocalTransportCandidatesGenerated(candidates);
}
void LocalJingleTransportCandidateGenerator::handleDiscoveredProxiesChanged() {
s5bProxy->onDiscoveredProxiesChanged.disconnect(boost::bind(&LocalJingleTransportCandidateGenerator::handleDiscoveredProxiesChanged, this));
emitOnLocalTransportCandidatesGenerated();
}
/*void LocalJingleTransportCandidateGenerator::handleS5BProxiesDiscovered() {
foreach(S5BProxyRequest::ref proxy, s5bProxiesDiscoverRequest->getS5BProxies()) {
if (proxy->getStreamHost()) { // FIXME: Added this test, because there were cases where this wasn't initialized. Investigate this. (Remko)
JingleS5BTransportPayload::Candidate candidate;
candidate.type = JingleS5BTransportPayload::Candidate::ProxyType;
candidate.jid = (*proxy->getStreamHost()).jid;
candidate.hostPort = (*proxy->getStreamHost()).addressPort;
candidate.priority = 65536 * 10 + LOCAL_PREFERENCE;
candidate.cid = idGenerator.generateID();
s5bCandidatesPayload->addCandidate(candidate);
}
}
haveS5BProxyCandidates = true;
s5bProxiesDiscoverRequest->stop();
s5bProxiesDiscoverRequest.reset();
checkS5BCandidatesReady();
}*/
}
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Swift