From 6d458439d9536be1736ba1a98c51040b64946284 Mon Sep 17 00:00:00 2001
From: dknn <yoann.blein@free.fr>
Date: Wed, 11 Jul 2012 18:06:01 +0200
Subject: Add disco for RTP + bugfix


diff --git a/Swiften/Client/Client.cpp b/Swiften/Client/Client.cpp
index c16d3b1..d907df6 100644
--- a/Swiften/Client/Client.cpp
+++ b/Swiften/Client/Client.cpp
@@ -124,7 +124,7 @@ void Client::handleConnected() {
 #ifdef SWIFT_EXPERIMENTAL_FT
 	NetworkFactories *nf = getNetworkFactories();
 	fileTransferManager = new FileTransferManagerImpl(getJID(), jingleSessionManager, getIQRouter(), getEntityCapsProvider(), presenceOracle, nf->getConnectionFactory(), nf->getConnectionServerFactory(), nf->getTimerFactory(), nf->getNATTraverser());
-	screenSharingManager = new ScreenSharingManagerImpl(getJID(), jingleSessionManager, getIQRouter(), nf->getUDPSocketFactory(), nf->getTimerFactory());
+	screenSharingManager = new ScreenSharingManagerImpl(getJID(), jingleSessionManager, getIQRouter(), nf->getUDPSocketFactory(), nf->getTimerFactory(), presenceOracle, getEntityCapsProvider());
 #else
 	fileTransferManager = new DummyFileTransferManager();
 #endif
diff --git a/Swiften/Elements/DiscoInfo.cpp b/Swiften/Elements/DiscoInfo.cpp
index 1683916..c20f989 100644
--- a/Swiften/Elements/DiscoInfo.cpp
+++ b/Swiften/Elements/DiscoInfo.cpp
@@ -23,6 +23,8 @@ const std::string DiscoInfo::JingleTransportsS5BFeature = std::string("urn:xmpp:
 const std::string DiscoInfo::Bytestream = std::string("http://jabber.org/protocol/bytestreams");
 const std::string DiscoInfo::MessageDeliveryReceiptsFeature = std::string("urn:xmpp:receipts");
 const std::string DiscoInfo::WhiteboardFeature = std::string("http://swift.im/whiteboard");
+const std::string DiscoInfo::JingleRTPFeature = std::string("urn:xmpp:jingle:apps:rtp:1");
+const std::string DiscoInfo::JingleTransportRawUDPFeature = std::string("urn:xmpp:jingle:transports:raw-udp:1");
 
 bool DiscoInfo::Identity::operator<(const Identity& other) const {
 	if (category_ == other.category_) {
diff --git a/Swiften/Elements/DiscoInfo.h b/Swiften/Elements/DiscoInfo.h
index 3334ac8..9ef3ab6 100644
--- a/Swiften/Elements/DiscoInfo.h
+++ b/Swiften/Elements/DiscoInfo.h
@@ -34,6 +34,8 @@ namespace Swift {
 			static const std::string Bytestream;
 			static const std::string MessageDeliveryReceiptsFeature;
 			static const std::string WhiteboardFeature;
+			static const std::string JingleRTPFeature;
+			static const std::string JingleTransportRawUDPFeature;
 
 			class Identity {
 				public:
diff --git a/Swiften/ScreenSharing/OutgoingScreenSharing.cpp b/Swiften/ScreenSharing/OutgoingScreenSharing.cpp
index 3aa460c..da7eb3e 100644
--- a/Swiften/ScreenSharing/OutgoingScreenSharing.cpp
+++ b/Swiften/ScreenSharing/OutgoingScreenSharing.cpp
@@ -13,6 +13,7 @@
 #include <Swiften/Network/UDPSocket.h>
 #include <Swiften/Network/TimerFactory.h>
 #include <Swiften/Network/Timer.h>
+#include <Swiften/ScreenSharing/RTPSessionImpl.h>
 
 #include <boost/bind.hpp>
 
@@ -21,8 +22,9 @@ namespace Swift {
 OutgoingScreenSharing::OutgoingScreenSharing(boost::shared_ptr<JingleSession> session, UDPSocketFactory* udpSocketFactory, TimerFactory* timerFactory)
 	: ScreenSharing(session, udpSocketFactory),
 	  contentID(JingleContentID(idGenerator.generateID(), JingleContentPayload::InitiatorCreator)), canceled(false),
-	  sessionAccepted(false), socketConnected(false), timerFactory(timerFactory)
+	  sessionAccepted(false), socketConnected(false), rtpSession(0), timerFactory(timerFactory)
 {
+	session->onSessionAcceptReceived.connect(boost::bind(&OutgoingScreenSharing::handleSessionAcceptReceived, this, _1, _2, _3));
 }
 
 OutgoingScreenSharing::~OutgoingScreenSharing()
@@ -43,7 +45,8 @@ void OutgoingScreenSharing::start()
 	SWIFT_LOG(debug) << "Screen sharing: start" << std::endl;
 
 	JingleRTPDescription::ref desc = boost::make_shared<JingleRTPDescription>(JingleRTPDescription::Video);
-	desc->addPayloadType(RTPPayloadType(98, "VP8", 90000));
+	payloadTypeUsed = RTPPayloadType(98, "VP8", 90000);
+	desc->addPayloadType(payloadTypeUsed);
 
 	JingleRawUDPTransportPayload::ref transport = boost::make_shared<JingleRawUDPTransportPayload>();
 	addBestCandidate(transport);
@@ -57,10 +60,9 @@ void OutgoingScreenSharing::start()
 
 void OutgoingScreenSharing::handleSocketConnected()
 {
-	SWIFT_LOG(debug) << "Screen sharing: UDP socket connected" << std::endl;
-
 	if (canceled)
 		return;
+	SWIFT_LOG(debug) << "Screen sharing: UDP socket connected" << std::endl;
 
 	socketConnected = true;
 	if (sessionAccepted)
@@ -69,10 +71,11 @@ void OutgoingScreenSharing::handleSocketConnected()
 
 void OutgoingScreenSharing::handleSessionAcceptReceived(const JingleContentID& /*id*/, boost::shared_ptr<JingleDescription> /*desc*/, boost::shared_ptr<JingleTransportPayload> /*transport*/)
 {
-	SWIFT_LOG(debug) << "Screen sharing:  accepted" << std::endl;
-
 	if (canceled)
 		return;
+	SWIFT_LOG(debug) << "Screen sharing:  accepted" << std::endl;
+
+	// TODO: check desc and transport
 
 	sessionAccepted = true;
 	if (socketConnected) {
@@ -97,9 +100,10 @@ void OutgoingScreenSharing::handleConnectionFailed()
 
 void OutgoingScreenSharing::startRTPSession()
 {
-	SWIFT_LOG(debug) << "Screen sharing: accepted and connect, start screen sharing" << std::endl;
+	SWIFT_LOG(debug) << "Screen sharing: accepted and connected, start sharing" << std::endl;
 
 	// Session accepted and socket connected, we can start the rtp session
+	rtpSession = new RTPSessionImpl(serverSocket, payloadTypeUsed);
 }
 
 }
diff --git a/Swiften/ScreenSharing/OutgoingScreenSharing.h b/Swiften/ScreenSharing/OutgoingScreenSharing.h
index d93b476..c00d11e 100644
--- a/Swiften/ScreenSharing/OutgoingScreenSharing.h
+++ b/Swiften/ScreenSharing/OutgoingScreenSharing.h
@@ -8,6 +8,7 @@
 
 #include <Swiften/ScreenSharing/ScreenSharing.h>
 #include <Swiften/Jingle/JingleContentID.h>
+#include <Swiften/Elements/RTPPayloadType.h>
 
 namespace Swift {
 	class ConnectivityManager;
@@ -15,6 +16,7 @@ namespace Swift {
 	class JingleTransportPayload;
 	class TimerFactory;
 	class Timer;
+	class RTPSession;
 
 	class OutgoingScreenSharing : public ScreenSharing {
 		public:
@@ -39,6 +41,8 @@ namespace Swift {
 			bool canceled;
 			bool sessionAccepted;
 			bool socketConnected;
+			RTPSession* rtpSession;
+			RTPPayloadType payloadTypeUsed;
 
 			TimerFactory* timerFactory;
 			boost::shared_ptr<Timer> connectionTimer;
diff --git a/Swiften/ScreenSharing/RTPSession.h b/Swiften/ScreenSharing/RTPSession.h
index bdb2861..4399b2d 100644
--- a/Swiften/ScreenSharing/RTPSession.h
+++ b/Swiften/ScreenSharing/RTPSession.h
@@ -14,19 +14,15 @@
 
 namespace Swift {
 	class UDPSocket;
+	class RTPPayloadType;
 
 	class RTPSession {
 		public:
 			typedef boost::shared_ptr<RTPSession> ref;
 
-			enum PayloadType {
-				VP8 = 98,
-			};
-
 		public:
 			virtual ~RTPSession() {}
 
-			virtual void create(boost::shared_ptr<UDPSocket> udpSocket, const HostAddressPort& remotePeer, PayloadType payloadType, int frequency) = 0;
 			virtual void poll() = 0;
 			virtual void checkIncomingPackets() = 0;
 			virtual void sendPacket(const SafeByteArray& data, int timestampinc, bool marker = false) = 0;
diff --git a/Swiften/ScreenSharing/RTPSessionImpl.cpp b/Swiften/ScreenSharing/RTPSessionImpl.cpp
index eb67d4e..62b05d5 100644
--- a/Swiften/ScreenSharing/RTPSessionImpl.cpp
+++ b/Swiften/ScreenSharing/RTPSessionImpl.cpp
@@ -9,6 +9,7 @@
 #include <Swiften/ScreenSharing/RTPException.h>
 #include <Swiften/Network/BoostUDPSocket.h>
 #include <Swiften/Base/boost_bsignals.h>
+#include <Swiften/Network/UDPSocket.h>
 
 #include <boost/algorithm/string/split.hpp>
 #include <boost/algorithm/string/classification.hpp>
@@ -22,33 +23,42 @@
 
 namespace Swift {
 
-RTPSessionImpl::RTPSessionImpl()
-	: RTPSession()
-{
+bool Sender::SendRTP(const void *data, size_t len) {
+	send(data, len);
+	return true;
 }
 
-RTPSessionImpl::~RTPSessionImpl()
-{
+bool Sender::SendRTCP(const void* data, size_t len) {
+	send(data, len);
+	return true;
 }
 
-void RTPSessionImpl::create(boost::shared_ptr<UDPSocket> udpSocket, const HostAddressPort &remotePeer, RTPSession::PayloadType payloadType, int frequency)
-{
-	this->udpSocket = udpSocket;
-	this->udpSocket->onDataRead.connect(boost::bind(&RTPSessionImpl::handleDataRead, this, _1));
+bool Sender::ComesFromThisSender (const jrtplib::RTPAddress* address) {
+	return RTPSessionImpl::nativeAddressToJRTPAddress(udpSocket->getLocalAddress()).IsSameAddress(address);
+}
 
-	this->payloadType = payloadType;
-	this->frequency = frequency;
-	nativeAddressToJRTPAddress(remotePeer, jRTPRemotePeer);
+void Sender::send(const void* data, size_t len) {
+	unsigned char *uint8Data = (unsigned char*)data;
+	udpSocket->send(SafeByteArray(uint8Data, uint8Data + len));
+}
 
+RTPSessionImpl::RTPSessionImpl(boost::shared_ptr<UDPSocket> udpSocket, const RTPPayloadType &payloadType)
+	: udpSocket(udpSocket), payloadType(payloadType), jRTPRemotePeer(nativeAddressToJRTPAddress(udpSocket->getRemoteAddress())), sender(udpSocket)
+{
 	jrtplib::RTPExternalTransmissionParams transparams(&sender, 0);
-
 	jrtplib::RTPSessionParams sessparams;
 	// IMPORTANT: The local timestamp unit MUST be set, otherwise RTCP Sender Report info will be calculated wrong
-	sessparams.SetOwnTimestampUnit(1.0 / frequency);
+	sessparams.SetOwnTimestampUnit(1.0 / payloadType.getClockrate());
 
 	checkError(session.Create(sessparams, &transparams, jrtplib::RTPTransmitter::ExternalProto));
 
 	packetInjecter = static_cast<jrtplib::RTPExternalTransmissionInfo*>(session.GetTransmissionInfo())->GetPacketInjector();
+
+	udpSocket->onDataRead.connect(boost::bind(&RTPSessionImpl::handleDataRead, this, _1));
+}
+
+RTPSessionImpl::~RTPSessionImpl()
+{
 }
 
 void RTPSessionImpl::poll()
@@ -73,7 +83,7 @@ void RTPSessionImpl::checkIncomingPackets()
 
 void RTPSessionImpl::sendPacket(const SafeByteArray& data, int timestampinc, bool marker)
 {
-	checkError(session.SendPacket((void*)(&data[0]), data.size(), payloadType, marker, timestampinc));
+	checkError(session.SendPacket((void*)(&data[0]), data.size(), payloadType.getID(), marker, timestampinc));
 	poll();
 }
 
@@ -101,7 +111,7 @@ void RTPSessionImpl::handleDataRead(boost::shared_ptr<SafeByteArray> data)
 	injectData(*data);
 }
 
-void RTPSessionImpl::nativeAddressToJRTPAddress(const HostAddressPort& hostAddressPort, jrtplib::RTPIPv4Address& jRTPAddress)
+jrtplib::RTPIPv4Address RTPSessionImpl::nativeAddressToJRTPAddress(const HostAddressPort& hostAddressPort)
 {
 	// Split address
 	std::vector<std::string> subStrings;
@@ -112,8 +122,7 @@ void RTPSessionImpl::nativeAddressToJRTPAddress(const HostAddressPort& hostAddre
 	for (int i = 0; i < std::min(4, (int)subStrings.size()); ++i)
 		ipNumbers[i] = boost::numeric_cast<uint8_t>(boost::lexical_cast<int>(subStrings[i]));
 
-	jRTPAddress.SetIP(ipNumbers);
-	jRTPAddress.SetPort(boost::numeric_cast<uint16_t>(hostAddressPort.getPort()));
+	return jrtplib::RTPIPv4Address(ipNumbers, boost::numeric_cast<uint16_t>(hostAddressPort.getPort()));
 }
 
 }
diff --git a/Swiften/ScreenSharing/RTPSessionImpl.h b/Swiften/ScreenSharing/RTPSessionImpl.h
index 657a34a..9bf08e5 100644
--- a/Swiften/ScreenSharing/RTPSessionImpl.h
+++ b/Swiften/ScreenSharing/RTPSessionImpl.h
@@ -7,6 +7,7 @@
 #pragma once
 
 #include <Swiften/ScreenSharing/RTPSession.h>
+#include <Swiften/Elements/RTPPayloadType.h>
 
 #pragma clang diagnostic push
 #pragma clang diagnostic ignored "-Wunused-parameter"
@@ -16,26 +17,19 @@
 #include <rtpipv4address.h>
 
 namespace Swift {
-	// Temporary class
-	class Sender : public jrtplib::RTPExternalSender
-	{
-	public:
-		Sender() {}
+	class Sender : public jrtplib::RTPExternalSender {
+		public:
+			Sender(boost::shared_ptr<UDPSocket> udpSocket) : udpSocket(udpSocket) {}
 
-		virtual bool SendRTP (const void* /*data*/, size_t /*len*/)
-		{
-			return true;
-		}
+			virtual bool SendRTP(const void* data, size_t len);
+			virtual bool SendRTCP(const void* data, size_t len);
+			virtual bool ComesFromThisSender (const jrtplib::RTPAddress* address);
 
-		virtual bool SendRTCP (const void* /*data*/, size_t /*len*/)
-		{
-			return true;
-		}
+		private:
+			void send(const void* data, size_t len);
 
-		virtual bool ComesFromThisSender (const jrtplib::RTPAddress* /*address*/)
-		{
-			return false;
-		}
+		private:
+			boost::shared_ptr<UDPSocket> udpSocket;
 	};
 
 	class RTPSessionImpl : public RTPSession {
@@ -43,30 +37,28 @@ namespace Swift {
 			typedef boost::shared_ptr<RTPSession> ref;
 
 		public:
-			RTPSessionImpl();
+			RTPSessionImpl(boost::shared_ptr<UDPSocket> udpSocket, const RTPPayloadType& payloadType);
 			virtual ~RTPSessionImpl();
 
-			virtual void create(boost::shared_ptr<UDPSocket> udpSocket, const HostAddressPort &remotePeer, PayloadType payloadType, int frequency);
 			virtual void poll();
 			virtual void checkIncomingPackets();
 			virtual void sendPacket(const SafeByteArray &data, int timestampinc, bool marker = false);
 			virtual void injectData(const SafeByteArray &data);
 			virtual void stop(int maxWaitMs = 100);
 
-		private:
-			static void nativeAddressToJRTPAddress(const HostAddressPort& hostAddressPort, jrtplib::RTPIPv4Address& jRTPAddress);
+		public:
+			static jrtplib::RTPIPv4Address nativeAddressToJRTPAddress(const HostAddressPort& hostAddressPort);
 
 		private:
-			inline void checkError(int rtperr) const;
+			void checkError(int rtperr) const;
 			void handleDataRead(boost::shared_ptr<SafeByteArray> data);
 
 		private:
 			boost::shared_ptr<UDPSocket> udpSocket;
-			PayloadType payloadType;
-			int frequency;
+			RTPPayloadType payloadType;
 			jrtplib::RTPIPv4Address jRTPRemotePeer;
-			jrtplib::RTPSession session;
 			Sender sender;
+			jrtplib::RTPSession session;
 			jrtplib::RTPExternalPacketInjecter *packetInjecter;
 	};
 }
diff --git a/Swiften/ScreenSharing/ScreenSharing.cpp b/Swiften/ScreenSharing/ScreenSharing.cpp
index fc7f672..532b73d 100644
--- a/Swiften/ScreenSharing/ScreenSharing.cpp
+++ b/Swiften/ScreenSharing/ScreenSharing.cpp
@@ -39,26 +39,26 @@ bool ScreenSharing::addBestCandidate(boost::shared_ptr<JingleRawUDPTransportPayl
 	// Find the first ip which is not loopback
 	foreach (const NetworkInterface& interface, interfaces) {
 		if (!interface.isLoopback()) { // exclude loopback
-			candidate.hostAddressPort = HostAddressPort(interface.getAddresses().front(), listeningPort);
+			serverSocket = udpSocketFactory->createUDPSocket();
+			serverSocket->bind(0);
+
+			candidate.hostAddressPort = HostAddressPort(interface.getAddresses().front(), serverSocket->getLocalAddress().getPort());
 			candidate.type = JingleRawUDPTransportPayload::Candidate::Host;
 			transport->addCandidate(candidate);
 
-			serverSocket = udpSocketFactory->createUDPSocket();
-			serverSocket->bind(listeningPort);
-
 			return true;
 		}
 	}
 
 	// else loopback for self sharing
 	if (!interfaces.empty()) {
-		candidate.hostAddressPort = HostAddressPort(interfaces.front().getAddresses().front(), listeningPort);
+		serverSocket = udpSocketFactory->createUDPSocket();
+		serverSocket->bind(0);
+
+		candidate.hostAddressPort = HostAddressPort(interfaces.front().getAddresses().front(), serverSocket->getLocalAddress().getPort());
 		candidate.type = JingleRawUDPTransportPayload::Candidate::Host;
 		transport->addCandidate(candidate);
 
-		serverSocket = udpSocketFactory->createUDPSocket();
-		serverSocket->bind(listeningPort);
-
 		return true;
 	}
 
diff --git a/Swiften/ScreenSharing/ScreenSharing.h b/Swiften/ScreenSharing/ScreenSharing.h
index 1f6f753..b1756b9 100644
--- a/Swiften/ScreenSharing/ScreenSharing.h
+++ b/Swiften/ScreenSharing/ScreenSharing.h
@@ -46,8 +46,6 @@ namespace Swift {
 			bool addBestCandidate(boost::shared_ptr<JingleRawUDPTransportPayload> transport);
 
 		protected:
-			static const int listeningPort = 28888;
-
 			IDGenerator idGenerator;
 			boost::shared_ptr<UDPSocket> serverSocket;
 			boost::shared_ptr<UDPSocket> clientSocket;
diff --git a/Swiften/ScreenSharing/ScreenSharingManagerImpl.cpp b/Swiften/ScreenSharing/ScreenSharingManagerImpl.cpp
index 4b88581..a747b81 100644
--- a/Swiften/ScreenSharing/ScreenSharingManagerImpl.cpp
+++ b/Swiften/ScreenSharing/ScreenSharingManagerImpl.cpp
@@ -6,14 +6,19 @@
 
 #include <Swiften/ScreenSharing/ScreenSharingManagerImpl.h>
 
+#include <Swiften/Base/foreach.h>
+#include <Swiften/Disco/EntityCapsProvider.h>
+#include <Swiften/Elements/Presence.h>
+#include <Swiften/Presence/PresenceOracle.h>
 #include <Swiften/ScreenSharing/IncomingScreenSharingManager.h>
 #include <Swiften/ScreenSharing/OutgoingScreenSharingManager.h>
 
 namespace Swift {
 
 ScreenSharingManagerImpl::ScreenSharingManagerImpl(const JID& ownFullJID, JingleSessionManager *jingleSessionManager, IQRouter *iqRouter,
-												   UDPSocketFactory* udpSocketFactory, TimerFactory* timerFactory)
-	: ownJID(ownFullJID)/*, jingleSM(jingleSessionManager), iqRouter(iqRouter), udpSocketFactory(udpSocketFactory), timerFactory(timerFactory)*/
+												   UDPSocketFactory* udpSocketFactory, TimerFactory* timerFactory, PresenceOracle* presenceOrable,
+												   EntityCapsProvider* capsProvider)
+	: ownJID(ownFullJID)/*, jingleSM(jingleSessionManager), iqRouter(iqRouter), udpSocketFactory(udpSocketFactory), timerFactory(timerFactory)*/, capsProvider(capsProvider),  presenceOracle(presenceOrable)
 {
 	incomingSSManager = new IncomingScreenSharingManager(jingleSessionManager, iqRouter, udpSocketFactory);
 	outgoingSSManager = new OutgoingScreenSharingManager(jingleSessionManager, iqRouter, udpSocketFactory, timerFactory);
@@ -27,18 +32,38 @@ ScreenSharingManagerImpl::~ScreenSharingManagerImpl()
 
 boost::shared_ptr<OutgoingScreenSharing> ScreenSharingManagerImpl::createOutgoingScreenSharing(const JID &to)
 {
-	JID receipient = to;
-
-	if (receipient.isBare()) {
-		//boost::optional<JID> fullJID = highestPriorityJIDSupportingFileTransfer(receipient);
-		//if (fullJID.is_initialized()) {
-		//	receipient = fullJID.get();
-		//} else {
-		return boost::shared_ptr<OutgoingScreenSharing>();
-		//}
+	JID recipient = to;
+
+	if (recipient.isBare()) {
+		boost::optional<JID> fullJID = highestPriorityJIDSupportingScreenSharing(recipient);
+		if (fullJID.is_initialized()) {
+			recipient = fullJID.get();
+		} else {
+			return boost::shared_ptr<OutgoingScreenSharing>();
+		}
+	}
+
+	return outgoingSSManager->createOutgoingScreenSharing(ownJID, recipient);
+}
+
+boost::optional<JID> ScreenSharingManagerImpl::highestPriorityJIDSupportingScreenSharing(const JID& bareJID) {
+	int priority = INT_MIN;
+	JID fullRecipientJID;
+
+	std::vector<Presence::ref> presences = presenceOracle->getAllPresence(bareJID);
+	foreach (Presence::ref pres, presences) {
+		if (pres->getPriority() > priority) {
+			DiscoInfo::ref info = capsProvider->getCaps(pres->getFrom()); // look up caps from the jid
+			if (info && info->hasFeature(DiscoInfo::JingleFeature)
+					&& info->hasFeature(DiscoInfo::JingleRTPFeature)
+					&& info->hasFeature(DiscoInfo::JingleTransportRawUDPFeature)) {
+				priority = pres->getPriority();
+				fullRecipientJID = pres->getFrom();
+			}
+		}
 	}
 
-	return outgoingSSManager->createOutgoingScreenSharing(ownJID, receipient);
+	return fullRecipientJID.isValid() ? boost::optional<JID>(fullRecipientJID) : boost::optional<JID>();
 }
 
 }
diff --git a/Swiften/ScreenSharing/ScreenSharingManagerImpl.h b/Swiften/ScreenSharing/ScreenSharingManagerImpl.h
index 0075630..8e8ea78 100644
--- a/Swiften/ScreenSharing/ScreenSharingManagerImpl.h
+++ b/Swiften/ScreenSharing/ScreenSharingManagerImpl.h
@@ -16,16 +16,22 @@ namespace Swift {
 	class IQRouter;
 	class UDPSocketFactory;
 	class TimerFactory;
+	class PresenceOracle;
+	class EntityCapsProvider;
 
 	class ScreenSharingManagerImpl : public ScreenSharingManager {
 		public:
-			ScreenSharingManagerImpl(const JID& ownFullJID, JingleSessionManager* jingleSessionManager, IQRouter *iqRouter,
-									 UDPSocketFactory* udpSocketFactory, TimerFactory* timerFactory);
+			ScreenSharingManagerImpl(const JID& ownFullJID, JingleSessionManager* jingleSessionManager, IQRouter* iqRouter,
+									 UDPSocketFactory* udpSocketFactory, TimerFactory* timerFactory, PresenceOracle* presenceOrable,
+									 EntityCapsProvider *capsProvider);
 			virtual ~ScreenSharingManagerImpl();
 
 			virtual boost::shared_ptr<OutgoingScreenSharing> createOutgoingScreenSharing(const JID& to);
 
 		private:
+			boost::optional<JID> highestPriorityJIDSupportingScreenSharing(const JID &bareJID);
+
+		private:
 			IncomingScreenSharingManager* incomingSSManager;
 			OutgoingScreenSharingManager* outgoingSSManager;
 
@@ -35,5 +41,7 @@ namespace Swift {
 //			IQRouter* iqRouter;
 //			BoostUDPSocketFactory* udpSocketFactory;
 //			TimerFactory* timerFactory;
+			EntityCapsProvider* capsProvider;
+			PresenceOracle* presenceOracle;
 	};
 }
-- 
cgit v0.10.2-6-g49f6