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/*
* Copyright (c) 2011-2015 Isode Limited.
* All rights reserved.
* See the COPYING file for more information.
*/
#include <Swiften/Session/BOSHSessionStream.h>
#include <boost/bind.hpp>
#include <boost/random/mersenne_twister.hpp>
#include <boost/random/uniform_int.hpp>
#include <boost/random/variate_generator.hpp>
#include <Swiften/Base/foreach.h>
#include <Swiften/Elements/StreamType.h>
#include <Swiften/EventLoop/EventLoop.h>
#include <Swiften/StreamStack/CompressionLayer.h>
#include <Swiften/StreamStack/ConnectionLayer.h>
#include <Swiften/StreamStack/StreamStack.h>
#include <Swiften/StreamStack/TLSLayer.h>
#include <Swiften/StreamStack/WhitespacePingLayer.h>
#include <Swiften/StreamStack/XMPPLayer.h>
#include <Swiften/TLS/TLSContext.h>
#include <Swiften/TLS/TLSContextFactory.h>
namespace Swift {
BOSHSessionStream::BOSHSessionStream(const URL& boshURL,
PayloadParserFactoryCollection* payloadParserFactories,
PayloadSerializerCollection* payloadSerializers,
ConnectionFactory* connectionFactory,
TLSContextFactory* tlsContextFactory,
TimerFactory* timerFactory,
XMLParserFactory* xmlParserFactory,
EventLoop* eventLoop,
DomainNameResolver* resolver,
const std::string& to,
const URL& boshHTTPConnectProxyURL,
const SafeString& boshHTTPConnectProxyAuthID,
const SafeString& boshHTTPConnectProxyAuthPassword,
const TLSOptions& tlsOptions,
boost::shared_ptr<HTTPTrafficFilter> trafficFilter) :
available(false),
eventLoop(eventLoop),
firstHeader(true) {
boost::mt19937 random;
boost::uniform_int<unsigned long long> dist(0, (1LL<<53) - 1);
random.seed(static_cast<unsigned int>(time(NULL)));
unsigned long long initialRID = boost::variate_generator<boost::mt19937&, boost::uniform_int<unsigned long long> >(random, dist)();
connectionPool = new BOSHConnectionPool(boshURL, resolver, connectionFactory, xmlParserFactory, tlsContextFactory, timerFactory, eventLoop, to, initialRID, boshHTTPConnectProxyURL, boshHTTPConnectProxyAuthID, boshHTTPConnectProxyAuthPassword, tlsOptions, trafficFilter);
connectionPool->onSessionTerminated.connect(boost::bind(&BOSHSessionStream::handlePoolSessionTerminated, this, _1));
connectionPool->onSessionStarted.connect(boost::bind(&BOSHSessionStream::handlePoolSessionStarted, this));
connectionPool->onXMPPDataRead.connect(boost::bind(&BOSHSessionStream::handlePoolXMPPDataRead, this, _1));
connectionPool->onBOSHDataRead.connect(boost::bind(&BOSHSessionStream::handlePoolBOSHDataRead, this, _1));
connectionPool->onBOSHDataWritten.connect(boost::bind(&BOSHSessionStream::handlePoolBOSHDataWritten, this, _1));
xmppLayer = new XMPPLayer(payloadParserFactories, payloadSerializers, xmlParserFactory, ClientStreamType, true);
xmppLayer->onStreamStart.connect(boost::bind(&BOSHSessionStream::handleStreamStartReceived, this, _1));
xmppLayer->onElement.connect(boost::bind(&BOSHSessionStream::handleElementReceived, this, _1));
xmppLayer->onError.connect(boost::bind(&BOSHSessionStream::handleXMPPError, this));
xmppLayer->onWriteData.connect(boost::bind(&BOSHSessionStream::handleXMPPLayerDataWritten, this, _1));
available = true;
}
BOSHSessionStream::~BOSHSessionStream() {
BOSHSessionStream::close();
connectionPool->onSessionTerminated.disconnect(boost::bind(&BOSHSessionStream::handlePoolSessionTerminated, this, _1));
connectionPool->onSessionStarted.disconnect(boost::bind(&BOSHSessionStream::handlePoolSessionStarted, this));
connectionPool->onXMPPDataRead.disconnect(boost::bind(&BOSHSessionStream::handlePoolXMPPDataRead, this, _1));
connectionPool->onBOSHDataRead.disconnect(boost::bind(&BOSHSessionStream::handlePoolBOSHDataRead, this, _1));
connectionPool->onBOSHDataWritten.disconnect(boost::bind(&BOSHSessionStream::handlePoolBOSHDataWritten, this, _1));
delete connectionPool;
connectionPool = NULL;
xmppLayer->onStreamStart.disconnect(boost::bind(&BOSHSessionStream::handleStreamStartReceived, this, _1));
xmppLayer->onElement.disconnect(boost::bind(&BOSHSessionStream::handleElementReceived, this, _1));
xmppLayer->onError.disconnect(boost::bind(&BOSHSessionStream::handleXMPPError, this));
xmppLayer->onWriteData.disconnect(boost::bind(&BOSHSessionStream::handleXMPPLayerDataWritten, this, _1));
delete xmppLayer;
xmppLayer = NULL;
}
void BOSHSessionStream::open() {
connectionPool->setTLSCertificate(getTLSCertificate());
connectionPool->open();
}
void BOSHSessionStream::handlePoolXMPPDataRead(const SafeByteArray& data) {
xmppLayer->handleDataRead(data);
}
void BOSHSessionStream::writeElement(boost::shared_ptr<ToplevelElement> element) {
assert(available);
xmppLayer->writeElement(element);
}
void BOSHSessionStream::writeFooter() {
connectionPool->writeFooter();
}
void BOSHSessionStream::writeData(const std::string& data) {
assert(available);
xmppLayer->writeData(data);
}
void BOSHSessionStream::close() {
connectionPool->close();
}
bool BOSHSessionStream::isOpen() {
return available;
}
bool BOSHSessionStream::supportsTLSEncryption() {
return false;
}
void BOSHSessionStream::addTLSEncryption() {
assert(available);
}
bool BOSHSessionStream::isTLSEncrypted() {
return connectionPool->isTLSEncrypted();
}
Certificate::ref BOSHSessionStream::getPeerCertificate() const {
return connectionPool->getPeerCertificate();
}
std::vector<Certificate::ref> BOSHSessionStream::getPeerCertificateChain() const {
return connectionPool->getPeerCertificateChain();
}
boost::shared_ptr<CertificateVerificationError> BOSHSessionStream::getPeerCertificateVerificationError() const {
return connectionPool->getPeerCertificateVerificationError();
}
ByteArray BOSHSessionStream::getTLSFinishMessage() const {
return ByteArray();
}
bool BOSHSessionStream::supportsZLibCompression() {
return false;
}
void BOSHSessionStream::addZLibCompression() {
}
void BOSHSessionStream::setWhitespacePingEnabled(bool /*enabled*/) {
return;
}
void BOSHSessionStream::resetXMPPParser() {
xmppLayer->resetParser();
}
void BOSHSessionStream::handleStreamStartReceived(const ProtocolHeader& header) {
onStreamStartReceived(header);
}
void BOSHSessionStream::handleElementReceived(boost::shared_ptr<ToplevelElement> element) {
onElementReceived(element);
}
void BOSHSessionStream::handleXMPPError() {
available = false;
onClosed(boost::make_shared<SessionStreamError>(SessionStreamError::ParseError));
}
void BOSHSessionStream::handlePoolSessionStarted() {
fakeStreamHeaderReceipt();
}
void BOSHSessionStream::handlePoolSessionTerminated(BOSHError::ref error) {
eventLoop->postEvent(boost::bind(&BOSHSessionStream::fakeStreamFooterReceipt, this, error), shared_from_this());
}
void BOSHSessionStream::writeHeader(const ProtocolHeader& header) {
streamHeader = header;
/*First time we're told to do this, don't (the sending of the initial header is handled on connect)
On subsequent requests we should restart the stream the BOSH way.
*/
if (!firstHeader) {
eventLoop->postEvent(boost::bind(&BOSHSessionStream::fakeStreamHeaderReceipt, this), shared_from_this());
eventLoop->postEvent(boost::bind(&BOSHConnectionPool::restartStream, connectionPool), shared_from_this());
}
firstHeader = false;
}
void BOSHSessionStream::fakeStreamHeaderReceipt() {
std::stringstream header;
header << "<stream:stream xmlns='jabber:client' xmlns:stream='http://etherx.jabber.org/streams' from='";
header << streamHeader.getTo() << "' id='dummy' version='1.0'>";
xmppLayer->handleDataRead(createSafeByteArray(header.str()));
}
void BOSHSessionStream::fakeStreamFooterReceipt(BOSHError::ref error) {
std::string footer("</stream:stream>");
xmppLayer->handleDataRead(createSafeByteArray(footer));
onClosed(error);
}
void BOSHSessionStream::handleXMPPLayerDataWritten(const SafeByteArray& data) {
eventLoop->postEvent(boost::bind(&BOSHConnectionPool::write, connectionPool, data), shared_from_this());
}
void BOSHSessionStream::handlePoolBOSHDataRead(const SafeByteArray& data) {
onDataRead(data);
}
void BOSHSessionStream::handlePoolBOSHDataWritten(const SafeByteArray& data) {
onDataWritten(data);
}
}
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Swift