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/*
* Copyright (c) 2010 Remko Tronçon
* Licensed under the GNU General Public License v3.
* See Documentation/Licenses/GPLv3.txt for more information.
*/
#include "Swiften/Session/BasicSessionStream.h"
#include <boost/bind.hpp>
#include "Swiften/StreamStack/XMPPLayer.h"
#include "Swiften/StreamStack/StreamStack.h"
#include "Swiften/StreamStack/ConnectionLayer.h"
#include "Swiften/StreamStack/WhitespacePingLayer.h"
#include "Swiften/StreamStack/CompressionLayer.h"
#include "Swiften/StreamStack/TLSLayer.h"
#include "Swiften/TLS/TLSContextFactory.h"
namespace Swift {
BasicSessionStream::BasicSessionStream(StreamType streamType, boost::shared_ptr<Connection> connection, PayloadParserFactoryCollection* payloadParserFactories, PayloadSerializerCollection* payloadSerializers, TLSContextFactory* tlsContextFactory, TimerFactory* timerFactory) : available(false), connection(connection), payloadParserFactories(payloadParserFactories), payloadSerializers(payloadSerializers), tlsContextFactory(tlsContextFactory), timerFactory(timerFactory), streamType(streamType) {
}
void BasicSessionStream::initialize() {
xmppLayer = boost::shared_ptr<XMPPLayer>(
new XMPPLayer(payloadParserFactories, payloadSerializers, streamType));
xmppLayer->onStreamStart.connect(boost::bind(&BasicSessionStream::handleStreamStartReceived, shared_from_this(), _1));
xmppLayer->onElement.connect(boost::bind(&BasicSessionStream::handleElementReceived, shared_from_this(), _1));
xmppLayer->onError.connect(boost::bind(
&BasicSessionStream::handleXMPPError, shared_from_this()));
xmppLayer->onDataRead.connect(boost::bind(&BasicSessionStream::handleDataRead, shared_from_this(), _1));
xmppLayer->onWriteData.connect(boost::bind(&BasicSessionStream::handleDataWritten, shared_from_this(), _1));
connection->onDisconnected.connect(boost::bind(&BasicSessionStream::handleConnectionError, shared_from_this(), _1));
connectionLayer = boost::shared_ptr<ConnectionLayer>(
new ConnectionLayer(connection));
streamStack = new StreamStack(xmppLayer, connectionLayer);
available = true;
}
BasicSessionStream::~BasicSessionStream() {
delete streamStack;
}
void BasicSessionStream::writeHeader(const ProtocolHeader& header) {
assert(available);
xmppLayer->writeHeader(header);
}
void BasicSessionStream::writeElement(boost::shared_ptr<Element> element) {
assert(available);
xmppLayer->writeElement(element);
}
void BasicSessionStream::writeFooter() {
assert(available);
xmppLayer->writeFooter();
}
bool BasicSessionStream::isAvailable() {
return available;
}
bool BasicSessionStream::supportsTLSEncryption() {
return tlsContextFactory && tlsContextFactory->canCreate();
}
void BasicSessionStream::addTLSEncryption() {
assert(available);
tlsLayer = boost::shared_ptr<TLSLayer>(new TLSLayer(tlsContextFactory));
if (hasTLSCertificate() && !tlsLayer->setClientCertificate(getTLSCertificate())) {
onError(boost::shared_ptr<Error>(new Error(Error::InvalidTLSCertificateError)));
}
else {
streamStack->addLayer(tlsLayer);
tlsLayer->onError.connect(boost::bind(&BasicSessionStream::handleTLSError, shared_from_this()));
tlsLayer->onConnected.connect(boost::bind(&BasicSessionStream::handleTLSConnected, shared_from_this()));
tlsLayer->connect();
}
}
bool BasicSessionStream::isTLSEncrypted() {
return tlsLayer;
}
void BasicSessionStream::addZLibCompression() {
boost::shared_ptr<CompressionLayer> compressionLayer(new CompressionLayer());
streamStack->addLayer(compressionLayer);
}
void BasicSessionStream::setWhitespacePingEnabled(bool enabled) {
if (enabled) {
if (!whitespacePingLayer) {
whitespacePingLayer = boost::shared_ptr<WhitespacePingLayer>(new WhitespacePingLayer(timerFactory));
streamStack->addLayer(whitespacePingLayer);
}
whitespacePingLayer->setActive();
}
else if (whitespacePingLayer) {
whitespacePingLayer->setInactive();
}
}
void BasicSessionStream::resetXMPPParser() {
xmppLayer->resetParser();
}
void BasicSessionStream::handleStreamStartReceived(const ProtocolHeader& header) {
onStreamStartReceived(header);
}
void BasicSessionStream::handleElementReceived(boost::shared_ptr<Element> element) {
onElementReceived(element);
}
void BasicSessionStream::handleXMPPError() {
available = false;
onError(boost::shared_ptr<Error>(new Error(Error::ParseError)));
}
void BasicSessionStream::handleTLSConnected() {
onTLSEncrypted();
}
void BasicSessionStream::handleTLSError() {
available = false;
onError(boost::shared_ptr<Error>(new Error(Error::TLSError)));
}
void BasicSessionStream::handleConnectionError(const boost::optional<Connection::Error>& error) {
available = false;
if (error == Connection::ReadError) {
onError(boost::shared_ptr<Error>(new Error(Error::ConnectionReadError)));
}
else {
onError(boost::shared_ptr<Error>(new Error(Error::ConnectionWriteError)));
}
}
void BasicSessionStream::handleDataRead(const ByteArray& data) {
onDataRead(String(data.getData(), data.getSize()));
}
void BasicSessionStream::handleDataWritten(const ByteArray& data) {
onDataWritten(String(data.getData(), data.getSize()));
}
};
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Swift