13 files changed, 286 insertions, 78 deletions
diff --git a/Swiften/Client/CoreClient.cpp b/Swiften/Client/CoreClient.cpp
index af64577..6fc491c 100644
--- a/Swiften/Client/CoreClient.cpp
+++ b/Swiften/Client/CoreClient.cpp
@@ -118,37 +118,42 @@ void CoreClient::connect(const ClientOptions& o) {
 		connector_ = boost::make_shared<ChainedConnector>(host, port, serviceLookupPrefix, networkFactories->getDomainNameResolver(), connectionFactories, networkFactories->getTimerFactory());
 		connector_->onConnectFinished.connect(boost::bind(&CoreClient::handleConnectorFinished, this, _1, _2));
 		connector_->setTimeoutMilliseconds(2*60*1000);
 		connector_->start();
 	}
 	else {
 		/* Autodiscovery of which proxy works is largely ok with a TCP session, because this is a one-off. With BOSH
 		 * it would be quite painful given that potentially every stanza could be sent on a new connection.
 		 */
-		//sessionStream_ = boost::make_shared<BOSHSessionStream>(boost::make_shared<BOSHConnectionFactory>(options.boshURL, networkFactories->getConnectionFactory(), networkFactories->getXMLParserFactory(), networkFactories->getTLSContextFactory()), getPayloadParserFactories(), getPayloadSerializers(), networkFactories->getTLSContextFactory(), networkFactories->getTimerFactory(), networkFactories->getXMLParserFactory(), networkFactories->getEventLoop(), host, options.boshHTTPConnectProxyURL, options.boshHTTPConnectProxyAuthID, options.boshHTTPConnectProxyAuthPassword);
-		sessionStream_ = boost::shared_ptr<BOSHSessionStream>(new BOSHSessionStream(
-				options.boshURL,
-				getPayloadParserFactories(),
-				getPayloadSerializers(),
-				networkFactories->getConnectionFactory(),
-				networkFactories->getTLSContextFactory(),
-				networkFactories->getTimerFactory(),
-				networkFactories->getXMLParserFactory(),
-				networkFactories->getEventLoop(),
-				networkFactories->getDomainNameResolver(),
-				host,
-				options.boshHTTPConnectProxyURL,
-				options.boshHTTPConnectProxyAuthID,
-				options.boshHTTPConnectProxyAuthPassword,
-				options.tlsOptions,
-				options.httpTrafficFilter));
+		boost::shared_ptr<BOSHSessionStream> boshSessionStream_ = boost::shared_ptr<BOSHSessionStream>(new BOSHSessionStream(
+			options.boshURL,
+			getPayloadParserFactories(),
+			getPayloadSerializers(),
+			networkFactories->getConnectionFactory(),
+			networkFactories->getTLSContextFactory(),
+			networkFactories->getTimerFactory(),
+			networkFactories->getXMLParserFactory(),
+			networkFactories->getEventLoop(),
+			networkFactories->getDomainNameResolver(),
+			host,
+			options.boshHTTPConnectProxyURL,
+			options.boshHTTPConnectProxyAuthID,
+			options.boshHTTPConnectProxyAuthPassword,
+			options.tlsOptions,
+			options.httpTrafficFilter));
+		sessionStream_ = boshSessionStream_;
 		sessionStream_->onDataRead.connect(boost::bind(&CoreClient::handleDataRead, this, _1));
 		sessionStream_->onDataWritten.connect(boost::bind(&CoreClient::handleDataWritten, this, _1));
+		if (certificate_ && !certificate_->isNull()) {
+			SWIFT_LOG(debug) << "set certificate" << std::endl;
+			sessionStream_->setTLSCertificate(certificate_);
+		}
+		boshSessionStream_->open();
 		bindSessionToStream();
 	}
 
 }
 
 void CoreClient::bindSessionToStream() {
 	session_ = ClientSession::create(jid_, sessionStream_, networkFactories->getIDNConverter(), networkFactories->getCryptoProvider());
 	session_->setCertificateTrustChecker(certificateTrustChecker);
 	session_->setUseStreamCompression(options.useStreamCompression);
diff --git a/Swiften/Network/BOSHConnection.cpp b/Swiften/Network/BOSHConnection.cpp
index 298b015..9a836cb 100644
--- a/Swiften/Network/BOSHConnection.cpp
+++ b/Swiften/Network/BOSHConnection.cpp
@@ -18,31 +18,41 @@
 #include <boost/lexical_cast.hpp>
 #include <boost/thread.hpp>
 
 #include <Swiften/Base/ByteArray.h>
 #include <Swiften/Base/Concat.h>
 #include <Swiften/Base/Log.h>
 #include <Swiften/Base/String.h>
 #include <Swiften/Network/HostAddressPort.h>
 #include <Swiften/Parser/BOSHBodyExtractor.h>
+#include <Swiften/StreamStack/DummyStreamLayer.h>
+#include <Swiften/StreamStack/TLSLayer.h>
+#include <Swiften/TLS/TLSContext.h>
+#include <Swiften/TLS/TLSOptions.h>
 
 namespace Swift {
 
-BOSHConnection::BOSHConnection(const URL& boshURL, Connector::ref connector, XMLParserFactory* parserFactory)
+BOSHConnection::BOSHConnection(const URL& boshURL, Connector::ref connector, XMLParserFactory* parserFactory, TLSContextFactory* tlsContextFactory, const TLSOptions& tlsOptions)
 	: boshURL_(boshURL),
 	  connector_(connector),
 	  parserFactory_(parserFactory),
 	  sid_(),
 	  waitingForStartResponse_(false),
 		rid_(~0ULL),
 	  pending_(false),
 	  connectionReady_(false)
 {
+	if (boshURL_.getScheme() == "https") {
+		tlsLayer_ = boost::make_shared<TLSLayer>(tlsContextFactory, tlsOptions);
+		// The following dummyLayer_ is needed as the TLSLayer will pass the decrypted data to its parent layer.
+		// The dummyLayer_ will serve as the parent layer.
+		dummyLayer_ = boost::make_shared<DummyStreamLayer>(tlsLayer_.get());
+	}
 }
 
 BOSHConnection::~BOSHConnection() {
 	cancelConnector();
 	if (connection_) {
 		connection_->onDataRead.disconnect(boost::bind(&BOSHConnection::handleDataRead, shared_from_this(), _1));
 		connection_->onDisconnected.disconnect(boost::bind(&BOSHConnection::handleDisconnected, shared_from_this(), _1));
 	}
 	BOSHConnection::disconnect();
@@ -55,33 +65,100 @@ void BOSHConnection::connect() {
 
 void BOSHConnection::cancelConnector() {
 	if (connector_) {
 		connector_->onConnectFinished.disconnect(boost::bind(&BOSHConnection::handleConnectFinished, shared_from_this(), _1));
 		connector_->stop();
 		connector_.reset();
 	}
 }
 
+void BOSHConnection::handleTLSConnected() {
+	SWIFT_LOG(debug) << std::endl;
+	onConnectFinished(false);
+}
+
+void BOSHConnection::handleTLSApplicationDataRead(const SafeByteArray& data) {
+	SWIFT_LOG(debug) << std::endl;
+	handleDataRead(boost::make_shared<SafeByteArray>(data));
+}
+
+void BOSHConnection::handleTLSNetowrkDataWriteRequest(const SafeByteArray& data) {
+	SWIFT_LOG(debug) << std::endl;
+	connection_->write(data);
+}
+
+void BOSHConnection::handleRawDataRead(boost::shared_ptr<SafeByteArray> data) {
+	SWIFT_LOG(debug) << std::endl;
+	tlsLayer_->handleDataRead(*data.get());
+}
+
+void BOSHConnection::handleTLSError(boost::shared_ptr<TLSError> error) {
+
+}
+
+void BOSHConnection::writeData(const SafeByteArray& data) {
+	if (tlsLayer_) {
+		tlsLayer_->writeData(data);
+	}
+	else {
+		connection_->write(data);
+	}
+}
+
 void BOSHConnection::disconnect() {
 	if (connection_) {
 		connection_->disconnect();
 		sid_ = "";
 	}
 	else {
 		/* handleDisconnected takes care of the connector_ as well */
 		handleDisconnected(boost::optional<Connection::Error>());
 	}
 }
 
 void BOSHConnection::restartStream() {
 	write(createSafeByteArray(""), true, false);
 }
 
+bool BOSHConnection::setClientCertificate(CertificateWithKey::ref cert) {
+	if (tlsLayer_) {
+		SWIFT_LOG(debug) << "set client certificate" << std::endl;
+		return tlsLayer_->setClientCertificate(cert);
+	}
+	else {
+		return false;
+	}
+}
+
+Certificate::ref BOSHConnection::getPeerCertificate() const {
+	Certificate::ref peerCertificate;
+	if (tlsLayer_) {
+		peerCertificate = tlsLayer_->getPeerCertificate();
+	}
+	return peerCertificate;
+}
+
+std::vector<Certificate::ref> BOSHConnection::getPeerCertificateChain() const {
+	std::vector<Certificate::ref> peerCertificateChain;
+	if (tlsLayer_) {
+		peerCertificateChain = tlsLayer_->getPeerCertificateChain();
+	}
+	return peerCertificateChain;
+}
+
+CertificateVerificationError::ref BOSHConnection::getPeerCertificateVerificationError() const {
+	CertificateVerificationError::ref verificationError;
+	if (tlsLayer_) {
+		verificationError = tlsLayer_->getPeerCertificateVerificationError();
+	}
+	return verificationError;
+}
+
 void BOSHConnection::terminateStream() {
 	write(createSafeByteArray(""), false, true);
 }
 
 
 void BOSHConnection::write(const SafeByteArray& data) {
 	write(data, false, false);
 }
 
@@ -123,33 +200,48 @@ std::pair<SafeByteArray, size_t> BOSHConnection::createHTTPRequest(const SafeByt
 }
 
 void BOSHConnection::write(const SafeByteArray& data, bool streamRestart, bool terminate) {
 	assert(connectionReady_);
 	assert(!sid_.empty());
 
 	SafeByteArray safeHeader = createHTTPRequest(data, streamRestart, terminate, rid_, sid_, boshURL_).first;
 
 	onBOSHDataWritten(safeHeader);
-	connection_->write(safeHeader);
+	writeData(safeHeader);
 	pending_ = true;
 
 	SWIFT_LOG(debug) << "write data: " << safeByteArrayToString(safeHeader) << std::endl;
 }
 
 void BOSHConnection::handleConnectFinished(Connection::ref connection) {
 	cancelConnector();
 	connectionReady_ = !!connection;
 	if (connectionReady_) {
 		connection_ = connection;
-		connection_->onDataRead.connect(boost::bind(&BOSHConnection::handleDataRead, shared_from_this(), _1));
-		connection_->onDisconnected.connect(boost::bind(&BOSHConnection::handleDisconnected, shared_from_this(), _1));
+		if (tlsLayer_) {
+			connection_->onDataRead.connect(boost::bind(&BOSHConnection::handleRawDataRead, shared_from_this(), _1));
+			connection_->onDisconnected.connect(boost::bind(&BOSHConnection::handleDisconnected, shared_from_this(), _1));
+
+			tlsLayer_->getContext()->onDataForNetwork.connect(boost::bind(&BOSHConnection::handleTLSNetowrkDataWriteRequest, shared_from_this(), _1));
+			tlsLayer_->getContext()->onDataForApplication.connect(boost::bind(&BOSHConnection::handleTLSApplicationDataRead, shared_from_this(), _1));
+			tlsLayer_->onConnected.connect(boost::bind(&BOSHConnection::handleTLSConnected, shared_from_this()));
+			tlsLayer_->onError.connect(boost::bind(&BOSHConnection::handleTLSError, shared_from_this(), _1));
+			tlsLayer_->connect();
+		}
+		else {
+			connection_->onDataRead.connect(boost::bind(&BOSHConnection::handleDataRead, shared_from_this(), _1));
+			connection_->onDisconnected.connect(boost::bind(&BOSHConnection::handleDisconnected, shared_from_this(), _1));
+		}
+	}
+
+	if (!connectionReady_ || !tlsLayer_) {
+		onConnectFinished(!connectionReady_);
 	}
-	onConnectFinished(!connectionReady_);
 }
 
 void BOSHConnection::startStream(const std::string& to, unsigned long long rid) {
 	assert(connectionReady_);
 	// Session Creation Request
 	std::stringstream content;
 	std::stringstream header;
 		
 	content << "<body content='text/xml; charset=utf-8'"
@@ -174,19 +266,19 @@ void BOSHConnection::startStream(const std::string& to, unsigned long long rid)
 	header << "\r\n"
 		 // << "Accept-Encoding: deflate\r\n"
 			<< "Content-Type: text/xml; charset=utf-8\r\n"
 			<< "Content-Length: " << contentString.size() << "\r\n\r\n"
 			<< contentString;
 	
 	waitingForStartResponse_ = true;
 	SafeByteArray safeHeader = createSafeByteArray(header.str());
 	onBOSHDataWritten(safeHeader);
-	connection_->write(safeHeader);
+	writeData(safeHeader);
 	SWIFT_LOG(debug) << "write stream header: " << safeByteArrayToString(safeHeader) << std::endl;
 }
 
 void BOSHConnection::handleDataRead(boost::shared_ptr<SafeByteArray> data) {
 	onBOSHDataRead(*data);
 	buffer_ = concat(buffer_, *data);
 	std::string response = safeByteArrayToString(buffer_);
 	if (response.find("\r\n\r\n") == std::string::npos) {
 		onBOSHDataRead(createSafeByteArray("[[Previous read incomplete, pending]]"));
diff --git a/Swiften/Network/BOSHConnection.h b/Swiften/Network/BOSHConnection.h
index 65d179a..da43e71 100644
--- a/Swiften/Network/BOSHConnection.h
+++ b/Swiften/Network/BOSHConnection.h
@@ -1,108 +1,126 @@
 /*
  * Copyright (c) 2011 Thilo Cestonaro
  * Licensed under the simplified BSD license.
  * See Documentation/Licenses/BSD-simplified.txt for more information.
  */
 
 /*
- * Copyright (c) 2011 Isode Limited.
+ * Copyright (c) 2011-2015 Isode Limited.
  * All rights reserved.
  * See the COPYING file for more information.
  */
 
 
 #pragma once
 
 #include <boost/enable_shared_from_this.hpp>
 
 #include <Swiften/Base/API.h>
+#include <Swiften/Base/Error.h>
+#include <Swiften/Base/String.h>
+#include <Swiften/Base/URL.h>
 #include <Swiften/Network/Connection.h>
 #include <Swiften/Network/Connector.h>
 #include <Swiften/Network/HostAddressPort.h>
-#include <Swiften/Base/String.h>
-#include <Swiften/Base/URL.h>
-#include <Swiften/Base/Error.h>
 #include <Swiften/Session/SessionStream.h>
+#include <Swiften/TLS/TLSError.h>
 
 namespace boost {
 	class thread;
 	namespace system {
 		class error_code;
 	}
 }
 
 class BOSHConnectionTest;
 
 namespace Swift {
 	class XMLParserFactory;
 	class TLSContextFactory;
+	class TLSLayer;
+	struct TLSOptions;
+	class HighLayer;
 
-		class SWIFTEN_API BOSHError : public SessionStream::SessionStreamError {
-				public:
-					enum Type {BadRequest, HostGone, HostUnknown, ImproperAddressing, 
-						  InternalServerError, ItemNotFound, OtherRequest, PolicyViolation, 
-						  RemoteConnectionFailed, RemoteStreamError, SeeOtherURI, SystemShutdown, UndefinedCondition,
-						  NoError};
-					BOSHError(Type type) : SessionStream::SessionStreamError(SessionStream::SessionStreamError::ConnectionReadError), type(type) {}
-					Type getType() {return type;}
-					typedef boost::shared_ptr<BOSHError> ref;
-				private:
-					Type type;
-					
-			};
+	class SWIFTEN_API BOSHError : public SessionStream::SessionStreamError {
+		public:
+			enum Type {
+				BadRequest, HostGone, HostUnknown, ImproperAddressing,
+				InternalServerError, ItemNotFound, OtherRequest, PolicyViolation,
+				RemoteConnectionFailed, RemoteStreamError, SeeOtherURI, SystemShutdown, UndefinedCondition,
+				NoError};
 
+			BOSHError(Type type) : SessionStream::SessionStreamError(SessionStream::SessionStreamError::ConnectionReadError), type(type) {}
+			Type getType() {return type;}
+			typedef boost::shared_ptr<BOSHError> ref;
+
+		private:
+			Type type;
+	};
 
 	class SWIFTEN_API BOSHConnection : public boost::enable_shared_from_this<BOSHConnection> {
 		public:
 			typedef boost::shared_ptr<BOSHConnection> ref;
-			static ref create(const URL& boshURL, Connector::ref connector, XMLParserFactory* parserFactory) {
-				return ref(new BOSHConnection(boshURL, connector, parserFactory));
+			static ref create(const URL& boshURL, Connector::ref connector, XMLParserFactory* parserFactory, TLSContextFactory* tlsContextFactory, const TLSOptions& tlsOptions) {
+				return ref(new BOSHConnection(boshURL, connector, parserFactory, tlsContextFactory, tlsOptions));
 			}
 			virtual ~BOSHConnection();
 			virtual void connect();
 			virtual void disconnect();
 			virtual void write(const SafeByteArray& data);
 
 			const std::string& getSID();
 			void setRID(unsigned long long rid);
 			void setSID(const std::string& sid);
 			void startStream(const std::string& to, unsigned long long rid);
 			void terminateStream();
 			bool isReadyToSend();
 			void restartStream();
 
+			bool setClientCertificate(CertificateWithKey::ref cert);
+			Certificate::ref getPeerCertificate() const;
+			std::vector<Certificate::ref> getPeerCertificateChain() const;
+			CertificateVerificationError::ref getPeerCertificateVerificationError() const;
 
 			boost::signal<void (bool /* error */)> onConnectFinished;
 			boost::signal<void (bool /* error */)> onDisconnected;
 			boost::signal<void (BOSHError::ref)> onSessionTerminated;
 			boost::signal<void (const std::string& /*sid*/, size_t /*requests*/)> onSessionStarted;
 			boost::signal<void (const SafeByteArray&)> onXMPPDataRead;
 			boost::signal<void (const SafeByteArray&)> onBOSHDataRead;
 			boost::signal<void (const SafeByteArray&)> onBOSHDataWritten;
 			boost::signal<void (const std::string&)> onHTTPError;
 
 		private:
 			friend class ::BOSHConnectionTest;
 
-			BOSHConnection(const URL& boshURL, Connector::ref connector, XMLParserFactory* parserFactory);
+			BOSHConnection(const URL& boshURL, Connector::ref connector, XMLParserFactory* parserFactory, TLSContextFactory* tlsContextFactory, const TLSOptions& tlsOptions);
 
 			static std::pair<SafeByteArray, size_t> createHTTPRequest(const SafeByteArray& data, bool streamRestart, bool terminate, unsigned long long rid, const std::string& sid, const URL& boshURL);
 			void handleConnectFinished(Connection::ref);
 			void handleDataRead(boost::shared_ptr<SafeByteArray> data);
 			void handleDisconnected(const boost::optional<Connection::Error>& error);
 			void write(const SafeByteArray& data, bool streamRestart, bool terminate); /* FIXME: refactor */
 			BOSHError::Type parseTerminationCondition(const std::string& text);
 			void cancelConnector();
 
+			void handleTLSConnected();
+			void handleTLSApplicationDataRead(const SafeByteArray& data);
+			void handleTLSNetowrkDataWriteRequest(const SafeByteArray& data);
+			void handleRawDataRead(boost::shared_ptr<SafeByteArray> data);
+			void handleTLSError(boost::shared_ptr<TLSError> error);
+			void writeData(const SafeByteArray& data);
+
 			URL boshURL_;
 			Connector::ref connector_;
 			XMLParserFactory* parserFactory_;
 			boost::shared_ptr<Connection> connection_;
+			boost::shared_ptr<HighLayer> dummyLayer_;
+			boost::shared_ptr<TLSLayer> tlsLayer_;
 			std::string sid_;
 			bool waitingForStartResponse_;
 			unsigned long long rid_;
 			SafeByteArray buffer_;
 			bool pending_;
 			bool connectionReady_;
 	};
 }
diff --git a/Swiften/Network/BOSHConnectionPool.cpp b/Swiften/Network/BOSHConnectionPool.cpp
index c23e2de..57c1bcc 100644
--- a/Swiften/Network/BOSHConnectionPool.cpp
+++ b/Swiften/Network/BOSHConnectionPool.cpp
@@ -4,50 +4,43 @@
  * See the COPYING file for more information.
  */
 #include <Swiften/Network/BOSHConnectionPool.h>
 
 #include <climits>
 
 #include <boost/bind.hpp>
 #include <boost/lexical_cast.hpp>
 
+#include <Swiften/Base/Log.h>
 #include <Swiften/Base/SafeString.h>
 #include <Swiften/Base/foreach.h>
 #include <Swiften/Network/CachingDomainNameResolver.h>
 #include <Swiften/Network/HTTPConnectProxiedConnectionFactory.h>
-#include <Swiften/Network/TLSConnectionFactory.h>
 
 namespace Swift {
 BOSHConnectionPool::BOSHConnectionPool(const URL& boshURL, DomainNameResolver* realResolver, ConnectionFactory* connectionFactoryParameter, XMLParserFactory* parserFactory, TLSContextFactory* tlsFactory, TimerFactory* timerFactory, EventLoop* eventLoop, const std::string& to, unsigned long long initialRID, const URL& boshHTTPConnectProxyURL, const SafeString& boshHTTPConnectProxyAuthID, const SafeString& boshHTTPConnectProxyAuthPassword, const TLSOptions& tlsOptions, boost::shared_ptr<HTTPTrafficFilter> trafficFilter) :
 		boshURL(boshURL),
 		connectionFactory(connectionFactoryParameter),
 		xmlParserFactory(parserFactory),
 		timerFactory(timerFactory),
 		rid(initialRID),
 		pendingTerminate(false),
 		to(to),
 		requestLimit(2),
 		restartCount(0),
-		pendingRestart(false) {
+		pendingRestart(false),
+		tlsContextFactory_(tlsFactory),
+		tlsOptions_(tlsOptions) {
 
 	if (!boshHTTPConnectProxyURL.isEmpty()) {
-		if (boshHTTPConnectProxyURL.getScheme() == "https") {
-			connectionFactory = new TLSConnectionFactory(tlsFactory, connectionFactory, tlsOptions);
-			myConnectionFactories.push_back(connectionFactory);
-		}
 		connectionFactory = new HTTPConnectProxiedConnectionFactory(realResolver, connectionFactory, timerFactory, boshHTTPConnectProxyURL.getHost(), URL::getPortOrDefaultPort(boshHTTPConnectProxyURL), boshHTTPConnectProxyAuthID, boshHTTPConnectProxyAuthPassword, trafficFilter);
 	}
-	if (boshURL.getScheme() == "https") {
-		connectionFactory = new TLSConnectionFactory(tlsFactory, connectionFactory, tlsOptions);
-		myConnectionFactories.push_back(connectionFactory);
-	}
 	resolver = new CachingDomainNameResolver(realResolver, eventLoop);
-	createConnection();
 }
 
 BOSHConnectionPool::~BOSHConnectionPool() {
 	/* Don't do a normal close here. Instead kill things forcibly, as close() or writeFooter() will already have been called */
 	std::vector<BOSHConnection::ref> connectionCopies = connections;
 	foreach (BOSHConnection::ref connection, connectionCopies) {
 		if (connection) {
 			destroyConnection(connection);
 			connection->disconnect();
@@ -77,23 +70,51 @@ void BOSHConnectionPool::restartStream() {
 		connection->setRID(rid);
 		connection->restartStream();
 		restartCount++;
 	}
 	else {
 		pendingRestart = true;
 	}
 }
 
+void BOSHConnectionPool::setTLSCertificate(CertificateWithKey::ref certWithKey) {
+	clientCertificate = certWithKey;
+}
+
+bool BOSHConnectionPool::isTLSEncrypted() const {
+	return !pinnedCertificateChain_.empty();
+}
+
+Certificate::ref BOSHConnectionPool::getPeerCertificate() const {
+	Certificate::ref peerCertificate;
+	if (!pinnedCertificateChain_.empty()) {
+		peerCertificate = pinnedCertificateChain_[0];
+	}
+	return peerCertificate;
+}
+
+std::vector<Certificate::ref> BOSHConnectionPool::getPeerCertificateChain() const {
+	return pinnedCertificateChain_;
+}
+
+boost::shared_ptr<CertificateVerificationError> BOSHConnectionPool::getPeerCertificateVerificationError() const {
+	return lastVerificationError_;
+}
+
 void BOSHConnectionPool::writeFooter() {
 	pendingTerminate = true;
 	tryToSendQueuedData();
 }
 
+void BOSHConnectionPool::open() {
+	createConnection();
+}
+
 void BOSHConnectionPool::close() {
 	if (!sid.empty()) {
 		writeFooter();
 	}
 	else {
 		pendingTerminate = true;
 		std::vector<BOSHConnection::ref> connectionCopies = connections;
 		foreach (BOSHConnection::ref connection, connectionCopies) {
 			if (connection) {
@@ -111,18 +132,25 @@ void BOSHConnectionPool::handleSessionStarted(const std::string& sessionID, size
 
 void BOSHConnectionPool::handleConnectFinished(bool error, BOSHConnection::ref connection) {
 	if (error) {
 		onSessionTerminated(boost::make_shared<BOSHError>(BOSHError::UndefinedCondition));
 		/*TODO: We can probably manage to not terminate the stream here and use the rid/ack retry
 		 * logic to just swallow the error and try again (some number of tries).
 		 */
 	}
 	else {
+		if (connection->getPeerCertificate() && pinnedCertificateChain_.empty()) {
+			pinnedCertificateChain_ = connection->getPeerCertificateChain();
+		}
+		if (!pinnedCertificateChain_.empty()) {
+			lastVerificationError_ = connection->getPeerCertificateVerificationError();
+		}
+
 		if (sid.empty()) {
 			connection->startStream(to, rid);
 		}
 		if (pendingRestart) {
 			restartStream();
 		}
 		tryToSendQueuedData();
 	}
 }
@@ -220,27 +248,33 @@ void BOSHConnectionPool::handleConnectionDisconnected(bool/* error*/, BOSHConnec
 	//}
 	else {
 		/* We might have just freed up a connection slot to send with */
 		tryToSendQueuedData();
 	}
 }
 
 boost::shared_ptr<BOSHConnection> BOSHConnectionPool::createConnection() {
 	Connector::ref connector = Connector::create(boshURL.getHost(), URL::getPortOrDefaultPort(boshURL), boost::optional<std::string>(), resolver, connectionFactory, timerFactory);
-	BOSHConnection::ref connection = BOSHConnection::create(boshURL, connector, xmlParserFactory);
+	BOSHConnection::ref connection = BOSHConnection::create(boshURL, connector, xmlParserFactory, tlsContextFactory_, tlsOptions_);
 	connection->onXMPPDataRead.connect(boost::bind(&BOSHConnectionPool::handleDataRead, this, _1));
 	connection->onSessionStarted.connect(boost::bind(&BOSHConnectionPool::handleSessionStarted, this, _1, _2));
 	connection->onBOSHDataRead.connect(boost::bind(&BOSHConnectionPool::handleBOSHDataRead, this, _1));
 	connection->onBOSHDataWritten.connect(boost::bind(&BOSHConnectionPool::handleBOSHDataWritten, this, _1));
 	connection->onDisconnected.connect(boost::bind(&BOSHConnectionPool::handleConnectionDisconnected, this, _1, connection));
 	connection->onConnectFinished.connect(boost::bind(&BOSHConnectionPool::handleConnectFinished, this, _1, connection));
 	connection->onSessionTerminated.connect(boost::bind(&BOSHConnectionPool::handleSessionTerminated, this, _1));
 	connection->onHTTPError.connect(boost::bind(&BOSHConnectionPool::handleHTTPError, this, _1));
+
+	if (boshURL.getScheme() == "https") {
+		bool success = connection->setClientCertificate(clientCertificate);
+		SWIFT_LOG(debug) << "setClientCertificate, success: " << success << std::endl;
+	}
+
 	connection->connect();
 	connections.push_back(connection);
 	return connection;
 }
 
 void BOSHConnectionPool::destroyConnection(boost::shared_ptr<BOSHConnection> connection) {
 	connections.erase(std::remove(connections.begin(), connections.end(), connection), connections.end());
 	connection->onXMPPDataRead.disconnect(boost::bind(&BOSHConnectionPool::handleDataRead, this, _1));
 	connection->onSessionStarted.disconnect(boost::bind(&BOSHConnectionPool::handleSessionStarted, this, _1, _2));
diff --git a/Swiften/Network/BOSHConnectionPool.h b/Swiften/Network/BOSHConnectionPool.h
index eaef56c..df116ff 100644
--- a/Swiften/Network/BOSHConnectionPool.h
+++ b/Swiften/Network/BOSHConnectionPool.h
@@ -6,36 +6,47 @@
 
 
 #pragma once
 
 #include <vector>
 
 #include <Swiften/Base/API.h>
 #include <Swiften/Base/SafeString.h>
 #include <Swiften/Network/BOSHConnection.h>
+#include <Swiften/TLS/CertificateWithKey.h>
 #include <Swiften/TLS/TLSOptions.h>
 
 namespace Swift {
 	class CachingDomainNameResolver;
 	class EventLoop;
 	class HTTPConnectProxiedConnectionFactory;
 	class HTTPTrafficFilter;
-	class TLSConnectionFactory;
+	class TLSContextFactory;
+	class CachingDomainNameResolver;
+	class EventLoop;
 
 	class SWIFTEN_API BOSHConnectionPool : public boost::bsignals::trackable {
 		public:
 			BOSHConnectionPool(const URL& boshURL, DomainNameResolver* resolver, ConnectionFactory* connectionFactory, XMLParserFactory* parserFactory, TLSContextFactory* tlsFactory, TimerFactory* timerFactory, EventLoop* eventLoop, const std::string& to, unsigned long long initialRID, const URL& boshHTTPConnectProxyURL, const SafeString& boshHTTPConnectProxyAuthID, const SafeString& boshHTTPConnectProxyAuthPassword, const TLSOptions& tlsOptions, boost::shared_ptr<HTTPTrafficFilter> trafficFilter = boost::shared_ptr<HTTPTrafficFilter>());
 			~BOSHConnectionPool();
+
+			void open();
 			void write(const SafeByteArray& data);
 			void writeFooter();
 			void close();
 			void restartStream();
 
+			void setTLSCertificate(CertificateWithKey::ref certWithKey);
+			bool isTLSEncrypted() const;
+			Certificate::ref getPeerCertificate() const;
+			std::vector<Certificate::ref> getPeerCertificateChain() const;
+			boost::shared_ptr<CertificateVerificationError> getPeerCertificateVerificationError() const;
+
 			boost::signal<void (BOSHError::ref)> onSessionTerminated;
 			boost::signal<void ()> onSessionStarted;
 			boost::signal<void (const SafeByteArray&)> onXMPPDataRead;
 			boost::signal<void (const SafeByteArray&)> onBOSHDataRead;
 			boost::signal<void (const SafeByteArray&)> onBOSHDataWritten;
 
 		private:
 			void handleDataRead(const SafeByteArray& data);
 			void handleSessionStarted(const std::string& sid, size_t requests);
@@ -62,11 +73,16 @@ namespace Swift {
 			unsigned long long rid;
 			std::vector<SafeByteArray> dataQueue;
 			bool pendingTerminate;
 			std::string to;
 			size_t requestLimit;
 			int restartCount;
 			bool pendingRestart;
 			std::vector<ConnectionFactory*> myConnectionFactories;
 			CachingDomainNameResolver* resolver;
+			CertificateWithKey::ref clientCertificate;
+			TLSContextFactory* tlsContextFactory_;
+			TLSOptions tlsOptions_;
+			std::vector<boost::shared_ptr<Certificate> > pinnedCertificateChain_;
+			boost::shared_ptr<CertificateVerificationError> lastVerificationError_;
 	};
 }
diff --git a/Swiften/Network/BoostConnection.h b/Swiften/Network/BoostConnection.h
index 83a8f01..8e89263 100644
--- a/Swiften/Network/BoostConnection.h
+++ b/Swiften/Network/BoostConnection.h
@@ -9,18 +9,21 @@
 #include <boost/asio/io_service.hpp>
 #include <boost/asio/ip/tcp.hpp>
 #include <boost/enable_shared_from_this.hpp>
 #include <boost/thread/mutex.hpp>
 
 #include <Swiften/Base/API.h>
 #include <Swiften/Base/SafeByteArray.h>
 #include <Swiften/EventLoop/EventOwner.h>
 #include <Swiften/Network/Connection.h>
+#include <Swiften/TLS/Certificate.h>
+#include <Swiften/TLS/CertificateVerificationError.h>
+#include <Swiften/TLS/CertificateWithKey.h>
 
 namespace boost {
 	class thread;
 	namespace system {
 		class error_code;
 	}
 }
 
 namespace Swift {
@@ -41,18 +44,24 @@ namespace Swift {
 			virtual void disconnect();
 			virtual void write(const SafeByteArray& data);
 
 			boost::asio::ip::tcp::socket& getSocket() {
 				return socket_;
 			}
 
 			HostAddressPort getLocalAddress() const;
 
+			bool setClientCertificate(CertificateWithKey::ref cert);
+
+			Certificate::ref getPeerCertificate() const;
+			std::vector<Certificate::ref> getPeerCertificateChain() const;
+			boost::shared_ptr<CertificateVerificationError> getPeerCertificateVerificationError() const;
+
 		private:
 			BoostConnection(boost::shared_ptr<boost::asio::io_service> ioService, EventLoop* eventLoop);
 
 			void handleConnectFinished(const boost::system::error_code& error);
 			void handleSocketRead(const boost::system::error_code& error, size_t bytesTransferred);
 			void handleDataWritten(const boost::system::error_code& error);
 			void doRead();
 			void doWrite(const SafeByteArray& data);
 			void closeSocket();
diff --git a/Swiften/Network/UnitTest/BOSHConnectionPoolTest.cpp b/Swiften/Network/UnitTest/BOSHConnectionPoolTest.cpp
index e687517..83ad548 100644
--- a/Swiften/Network/UnitTest/BOSHConnectionPoolTest.cpp
+++ b/Swiften/Network/UnitTest/BOSHConnectionPoolTest.cpp
@@ -1,40 +1,38 @@
 /*
- * Copyright (c) 2011 Isode Limited.
+ * Copyright (c) 2011-2015 Isode Limited.
  * All rights reserved.
  * See the COPYING file for more information.
  */
 
+#include <boost/bind.hpp>
+#include <boost/lexical_cast.hpp>
+#include <boost/optional.hpp>
+#include <boost/shared_ptr.hpp>
+#include <boost/smart_ptr/make_shared.hpp>
+
 #include <QA/Checker/IO.h>
 
 #include <cppunit/extensions/HelperMacros.h>
 #include <cppunit/extensions/TestFactoryRegistry.h>
 
-#include <boost/optional.hpp>
-#include <boost/bind.hpp>
-#include <boost/smart_ptr/make_shared.hpp>
-#include <boost/shared_ptr.hpp>
-#include <boost/lexical_cast.hpp>
-
 #include <Swiften/Base/Algorithm.h>
 #include <Swiften/EventLoop/DummyEventLoop.h>
 #include <Swiften/Network/BOSHConnection.h>
 #include <Swiften/Network/BOSHConnectionPool.h>
 #include <Swiften/Network/Connection.h>
 #include <Swiften/Network/ConnectionFactory.h>
 #include <Swiften/Network/DummyTimerFactory.h>
 #include <Swiften/Network/HostAddressPort.h>
 #include <Swiften/Network/StaticDomainNameResolver.h>
 #include <Swiften/Parser/PlatformXMLParserFactory.h>
 #include <Swiften/TLS/TLSOptions.h>
 
-
-
 using namespace Swift;
 
 typedef boost::shared_ptr<BOSHConnectionPool> PoolRef;
 
 
 class BOSHConnectionPoolTest : public CppUnit::TestFixture {
 	CPPUNIT_TEST_SUITE(BOSHConnectionPoolTest);
 	CPPUNIT_TEST(testConnectionCount_OneWrite);
 	CPPUNIT_TEST(testConnectionCount_TwoWrites);
@@ -317,22 +315,21 @@ class BOSHConnectionPoolTest : public CppUnit::TestFixture {
 			size_t bodyPosition = response.find("\r\n\r\n");
 			CPPUNIT_ASSERT_EQUAL(fullBody, response.substr(bodyPosition+4));
 
 
 		}
 
 	private:
 
 		PoolRef createTestling() {
-			BOSHConnectionPool* a = new BOSHConnectionPool(boshURL, resolver, connectionFactory, &parserFactory, static_cast<TLSContextFactory*>(NULL), timerFactory, eventLoop, to, initialRID, URL(), SafeString(""), SafeString(""), TLSOptions());
-			PoolRef pool(a);
-			//FIXME: Remko - why does the above work, but the below fail?
-			//PoolRef pool = boost::make_shared<BOSHConnectionPool>(boshURL, resolver, connectionFactory, &parserFactory, static_cast<TLSContextFactory*>(NULL), timerFactory, eventLoop, to, initialRID, URL(), SafeString(""), SafeString(""));
+			// make_shared is limited to 9 arguments; instead new is used here.
+			PoolRef pool = PoolRef(new BOSHConnectionPool(boshURL, resolver, connectionFactory, &parserFactory, static_cast<TLSContextFactory*>(NULL), timerFactory, eventLoop, to, initialRID, URL(), SafeString(""), SafeString(""), TLSOptions()));
+			pool->open();
 			pool->onXMPPDataRead.connect(boost::bind(&BOSHConnectionPoolTest::handleXMPPDataRead, this, _1));
 			pool->onBOSHDataRead.connect(boost::bind(&BOSHConnectionPoolTest::handleBOSHDataRead, this, _1));
 			pool->onBOSHDataWritten.connect(boost::bind(&BOSHConnectionPoolTest::handleBOSHDataWritten, this, _1));
 			pool->onSessionStarted.connect(boost::bind(&BOSHConnectionPoolTest::handleSessionStarted, this));
 			pool->onSessionTerminated.connect(boost::bind(&BOSHConnectionPoolTest::handleSessionTerminated, this));
 			eventLoop->processEvents();
 			eventLoop->processEvents();
 			return pool;
 		}
diff --git a/Swiften/Network/UnitTest/BOSHConnectionTest.cpp b/Swiften/Network/UnitTest/BOSHConnectionTest.cpp
index c8bf1f0..349c282 100644
--- a/Swiften/Network/UnitTest/BOSHConnectionTest.cpp
+++ b/Swiften/Network/UnitTest/BOSHConnectionTest.cpp
@@ -18,18 +18,19 @@
 #include <Swiften/Base/Algorithm.h>
 #include <Swiften/EventLoop/DummyEventLoop.h>
 #include <Swiften/Network/BOSHConnection.h>
 #include <Swiften/Network/Connection.h>
 #include <Swiften/Network/ConnectionFactory.h>
 #include <Swiften/Network/DummyTimerFactory.h>
 #include <Swiften/Network/HostAddressPort.h>
 #include <Swiften/Network/StaticDomainNameResolver.h>
 #include <Swiften/Parser/PlatformXMLParserFactory.h>
+#include <Swiften/TLS/TLSOptions.h>
 
 using namespace Swift;
 
 class BOSHConnectionTest : public CppUnit::TestFixture {
 	CPPUNIT_TEST_SUITE(BOSHConnectionTest);
 	CPPUNIT_TEST(testHeader);
 	CPPUNIT_TEST(testReadiness_ok);
 	CPPUNIT_TEST(testReadiness_pending);
 	CPPUNIT_TEST(testReadiness_disconnect);
@@ -41,18 +42,19 @@ class BOSHConnectionTest : public CppUnit::TestFixture {
 	CPPUNIT_TEST(testHTTPRequest_Empty);
 	CPPUNIT_TEST_SUITE_END();
 
 	public:
 		void setUp() {
 			eventLoop = new DummyEventLoop();
 			connectionFactory = new MockConnectionFactory(eventLoop);
 			resolver = new StaticDomainNameResolver(eventLoop);
 			timerFactory = new DummyTimerFactory();
+			tlsContextFactory = NULL;
 			connectFinished = false;
 			disconnected = false;
 			disconnectedError = false;
 			dataRead.clear();
 		}
 
 		void tearDown() {
 			eventLoop->processEvents();
 			delete connectionFactory;
@@ -187,19 +189,19 @@ class BOSHConnectionTest : public CppUnit::TestFixture {
 			size_t bodyPosition = response.find("\r\n\r\n");
 			CPPUNIT_ASSERT_EQUAL(fullBody, response.substr(bodyPosition+4));
 		}
 
 	private:
 
 		BOSHConnection::ref createTestling() {
 			resolver->addAddress("wonderland.lit", HostAddress("127.0.0.1"));
 			Connector::ref connector = Connector::create("wonderland.lit", 5280, boost::optional<std::string>(), resolver, connectionFactory, timerFactory);
-			BOSHConnection::ref c = BOSHConnection::create(URL("http", "wonderland.lit", 5280, "/http-bind"), connector, &parserFactory);
+			BOSHConnection::ref c = BOSHConnection::create(URL("http", "wonderland.lit", 5280, "/http-bind"), connector, &parserFactory, tlsContextFactory, TLSOptions());
 			c->onConnectFinished.connect(boost::bind(&BOSHConnectionTest::handleConnectFinished, this, _1));
 			c->onDisconnected.connect(boost::bind(&BOSHConnectionTest::handleDisconnected, this, _1));
 			c->onXMPPDataRead.connect(boost::bind(&BOSHConnectionTest::handleDataRead, this, _1));
 			c->onSessionStarted.connect(boost::bind(&BOSHConnectionTest::handleSID, this, _1));
 			c->setRID(42);
 			return c;
 		}
 
 		void handleConnectFinished(bool error) {
@@ -288,15 +290,16 @@ class BOSHConnectionTest : public CppUnit::TestFixture {
 		MockConnectionFactory* connectionFactory;
 		bool connectFinished;
 		bool connectFinishedWithError;
 		bool disconnected;
 		bool disconnectedError;
 		ByteArray dataRead;
 		PlatformXMLParserFactory parserFactory;
 		StaticDomainNameResolver* resolver;
 		TimerFactory* timerFactory;
+		TLSContextFactory* tlsContextFactory;
 		std::string sid;	
 
 };
 
 
 CPPUNIT_TEST_SUITE_REGISTRATION(BOSHConnectionTest);
diff --git a/Swiften/QA/TLSTest/CertificateErrorTest.cpp b/Swiften/QA/TLSTest/CertificateErrorTest.cpp
index d7c2c55..e69af0b 100644
--- a/Swiften/QA/TLSTest/CertificateErrorTest.cpp
+++ b/Swiften/QA/TLSTest/CertificateErrorTest.cpp
@@ -42,19 +42,18 @@ class CertificateErrorTest : public CppUnit::TestFixture {
 		// Our OpenSSL backend does not support revocation. We excluded it from the revocation tests.
 		CPPUNIT_TEST(testRevokedCertificateRevocationDisabled);
 		CPPUNIT_TEST(testRevokedCertificateRevocationEnabled);
 #endif
 
 		CPPUNIT_TEST_SUITE_END();
 
 	public:
 		void setUp() {
-			SWIFT_LOG(debug) << std::endl << std::endl;
 			eventLoop_ = new DummyEventLoop();
 			boostIOServiceThread_ = new BoostIOServiceThread();
 			boostIOService_ = boost::make_shared<boost::asio::io_service>();
 			connectionFactory_ = new BoostConnectionFactory(boostIOServiceThread_->getIOService(), eventLoop_);
 			idnConverter_ = PlatformIDNConverter::create();
 			domainNameResolver_ = new PlatformDomainNameResolver(idnConverter_, eventLoop_),
 
 			tlsFactories_ = new PlatformTLSFactories();
 			tlsContextFactory_ = tlsFactories_->getTLSContextFactory();
@@ -90,19 +89,18 @@ class CertificateErrorTest : public CppUnit::TestFixture {
 			query->run();
 			while(!resolvingDone_) {
 				eventLoop_->processEvents();
 			}
 
 			return lastResoverResult_;
 		}
 
 		void connectToServer(boost::shared_ptr<TLSConnection> connection, const std::string& hostname, int port) {
-			Log::setLogLevel(Log::debug);
 			connection->onConnectFinished.connect(boost::bind(&CertificateErrorTest::handleConnectFinished, this, _1));
 
 			HostAddress address = resolveName(hostname);
 
 			connection->connect(HostAddressPort(address, port));
 
 			while (!connectFinished_) {
 				eventLoop_->processEvents();
 			}
@@ -135,19 +133,18 @@ class CertificateErrorTest : public CppUnit::TestFixture {
 
 			connectToServer(connection, "test6.tls-o-matic.com", 406);
 
 			CPPUNIT_ASSERT_EQUAL(true, connectFinishedWithError_);
 			CPPUNIT_ASSERT(context->getPeerCertificateVerificationError());
 			CPPUNIT_ASSERT_EQUAL(CertificateVerificationError::Expired, context->getPeerCertificateVerificationError()->getType());
 		}
 
 		void testTLS_O_MaticCertificateFromUnknownCA() {
-			Log::setLogLevel(Log::debug);
 			boost::shared_ptr<TLSConnection> connection = boost::dynamic_pointer_cast<TLSConnection>(tlsConnectionFactory_->createConnection());
 			TLSContext* context = connection->getTLSContext();
 
 			connectToServer(connection, "test7.tls-o-matic.com", 407);
 
 			CPPUNIT_ASSERT_EQUAL(true, connectFinishedWithError_);
 			CPPUNIT_ASSERT(context->getPeerCertificateVerificationError());
 			CPPUNIT_ASSERT_EQUAL(CertificateVerificationError::Untrusted, context->getPeerCertificateVerificationError()->getType());
 		}
diff --git a/Swiften/Session/BOSHSessionStream.cpp b/Swiften/Session/BOSHSessionStream.cpp
index 99af71d..7fb8b31 100644
--- a/Swiften/Session/BOSHSessionStream.cpp
+++ b/Swiften/Session/BOSHSessionStream.cpp
@@ -77,18 +77,23 @@ BOSHSessionStream::~BOSHSessionStream() {
 	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);
 }
 
@@ -112,31 +117,31 @@ bool BOSHSessionStream::isOpen() {
 bool BOSHSessionStream::supportsTLSEncryption() {
 	return false;
 }
 
 void BOSHSessionStream::addTLSEncryption() {
 	assert(available);
 }
 
 bool BOSHSessionStream::isTLSEncrypted() {
-	return false;
+	return connectionPool->isTLSEncrypted();
 }
 
 Certificate::ref BOSHSessionStream::getPeerCertificate() const {
-	return Certificate::ref();
+	return connectionPool->getPeerCertificate();
 }
 
 std::vector<Certificate::ref> BOSHSessionStream::getPeerCertificateChain() const {
-	return std::vector<Certificate::ref>();
+	return connectionPool->getPeerCertificateChain();
 }
 
 boost::shared_ptr<CertificateVerificationError> BOSHSessionStream::getPeerCertificateVerificationError() const {
-	return boost::shared_ptr<CertificateVerificationError>();
+	return connectionPool->getPeerCertificateVerificationError();
 }
 
 ByteArray BOSHSessionStream::getTLSFinishMessage() const {
 	return ByteArray();
 }
 
 bool BOSHSessionStream::supportsZLibCompression() {
 	return false;
 }
diff --git a/Swiften/Session/BOSHSessionStream.h b/Swiften/Session/BOSHSessionStream.h
index 191a6f4..66e41ea 100644
--- a/Swiften/Session/BOSHSessionStream.h
+++ b/Swiften/Session/BOSHSessionStream.h
@@ -45,18 +45,19 @@ namespace Swift {
 					const std::string& to,
 					const URL& boshHTTPConnectProxyURL,
 					const SafeString& boshHTTPConnectProxyAuthID,
 					const SafeString& boshHTTPConnectProxyAuthPassword,
 					const TLSOptions& tlsOptions,
 					boost::shared_ptr<HTTPTrafficFilter> trafficFilter
 			);
 			virtual ~BOSHSessionStream();
 
+			void open();
 			virtual void close();
 			virtual bool isOpen();
 
 			virtual void writeHeader(const ProtocolHeader& header);
 			virtual void writeElement(boost::shared_ptr<ToplevelElement>);
 			virtual void writeFooter();
 			virtual void writeData(const std::string& data);
 
 			virtual bool supportsZLibCompression();
diff --git a/Swiften/StreamStack/DummyStreamLayer.h b/Swiften/StreamStack/DummyStreamLayer.h
new file mode 100644
index 0000000..b06c8aa
--- /dev/null
+++ b/Swiften/StreamStack/DummyStreamLayer.h
@@ -0,0 +1,30 @@
+/*
+ * Copyright (c) 2015 Isode Limited.
+ * All rights reserved.
+ * See the COPYING file for more information.
+ */
+
+#pragma once
+
+#include <Swiften/Base/API.h>
+#include <Swiften/StreamStack/HighLayer.h>
+#include <Swiften/StreamStack/LowLayer.h>
+
+namespace Swift {
+	/**
+	 *  The \ref DummyStreamLayer can be used to use a \ref LowLayer on its own, without a functioning parent layer.
+	 *  The \ref DummyStreamLayer will serve as the parent layer to the \ref LowLayer and is called when the \ref LowLayer
+	 *  wants to write data to its parent layer.
+	 */
+	class SWIFTEN_API DummyStreamLayer : public HighLayer {
+		public:
+			DummyStreamLayer(LowLayer* lowLayer) {
+				setChildLayer(lowLayer);
+				lowLayer->setParentLayer(this);
+			}
+
+			virtual void handleDataRead(const SafeByteArray& /* data */) {
+
+			}
+	};
+}
diff --git a/Swiften/StreamStack/LowLayer.h b/Swiften/StreamStack/LowLayer.h
index 7d7e0b5..b1bddec 100644
--- a/Swiften/StreamStack/LowLayer.h
+++ b/Swiften/StreamStack/LowLayer.h
@@ -1,25 +1,26 @@
 /*
- * Copyright (c) 2010 Isode Limited.
+ * Copyright (c) 2010-2015 Isode Limited.
  * All rights reserved.
  * See the COPYING file for more information.
  */
 
 #pragma once
 
 #include <Swiften/Base/API.h>
 #include <Swiften/Base/SafeByteArray.h>
 
 namespace Swift {
 	class HighLayer;
 
 	class SWIFTEN_API LowLayer {
 			friend class StreamStack;
+			friend class DummyStreamLayer;
 
 		public:
 			LowLayer();
 			virtual ~LowLayer();
 
 			virtual void writeData(const SafeByteArray& data) = 0;
 	
 		protected:
 			HighLayer* getParentLayer() {