From f1d74218cb432513c376b46aa115acb3e107ed3a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Remko=20Tron=C3=A7on?= <git@el-tramo.be>
Date: Sun, 8 Nov 2009 17:12:48 +0100
Subject: Added Error class.


diff --git a/Limber/main.cpp b/Limber/main.cpp
index 965abc2..25cccec 100644
--- a/Limber/main.cpp
+++ b/Limber/main.cpp
@@ -63,11 +63,11 @@ class Server {
 							session->sendElement(IQ::createResult(iq->getFrom(), iq->getID(), vcard));
 						}
 						else {
-							session->sendElement(IQ::createError(iq->getFrom(), iq->getID(), Error::Forbidden, Error::Cancel));
+							session->sendElement(IQ::createError(iq->getFrom(), iq->getID(), ErrorPayload::Forbidden, ErrorPayload::Cancel));
 						}
 					}
 					else {
-						session->sendElement(IQ::createError(iq->getFrom(), iq->getID(), Error::FeatureNotImplemented, Error::Cancel));
+						session->sendElement(IQ::createError(iq->getFrom(), iq->getID(), ErrorPayload::FeatureNotImplemented, ErrorPayload::Cancel));
 					}
 				}
 			}
diff --git a/Slimber/Server.cpp b/Slimber/Server.cpp
index e07fb41..278a572 100644
--- a/Slimber/Server.cpp
+++ b/Slimber/Server.cpp
@@ -211,7 +211,7 @@ void Server::handleElementReceived(boost::shared_ptr<Element> element, boost::sh
 					}
 				}
 				else {
-					session->sendElement(IQ::createError(iq->getFrom(), iq->getID(), Error::Forbidden, Error::Cancel));
+					session->sendElement(IQ::createError(iq->getFrom(), iq->getID(), ErrorPayload::Forbidden, ErrorPayload::Cancel));
 				}
 			}
 			if (boost::shared_ptr<VCard> vcard = iq->getPayload<VCard>()) {
@@ -227,7 +227,7 @@ void Server::handleElementReceived(boost::shared_ptr<Element> element, boost::sh
 				}
 			}
 			else {
-				session->sendElement(IQ::createError(iq->getFrom(), iq->getID(), Error::FeatureNotImplemented, Error::Cancel));
+				session->sendElement(IQ::createError(iq->getFrom(), iq->getID(), ErrorPayload::FeatureNotImplemented, ErrorPayload::Cancel));
 			}
 		}
 	}
@@ -260,7 +260,7 @@ void Server::handleElementReceived(boost::shared_ptr<Element> element, boost::sh
 			else {
 				session->sendElement(IQ::createError(
 						stanza->getFrom(), stanza->getID(), 
-						Error::RecipientUnavailable, Error::Wait));
+						ErrorPayload::RecipientUnavailable, ErrorPayload::Wait));
 			}
 		}
 	}
diff --git a/Swift/Controllers/ChatControllerBase.cpp b/Swift/Controllers/ChatControllerBase.cpp
index baa715b..2b873f1 100644
--- a/Swift/Controllers/ChatControllerBase.cpp
+++ b/Swift/Controllers/ChatControllerBase.cpp
@@ -67,7 +67,7 @@ void ChatControllerBase::handleSendMessageRequest(const String &body) {
 	postSendMessage(message->getBody());
 }
 
-void ChatControllerBase::handleSecurityLabelsCatalogResponse(boost::shared_ptr<SecurityLabelsCatalog> catalog, const boost::optional<Error>& error) {
+void ChatControllerBase::handleSecurityLabelsCatalogResponse(boost::shared_ptr<SecurityLabelsCatalog> catalog, const boost::optional<ErrorPayload>& error) {
 	if (!error) {
 		if (catalog->getLabels().size() == 0) {
 			chatWindow_->setSecurityLabelsEnabled(false);
@@ -97,7 +97,7 @@ void ChatControllerBase::handleIncomingMessage(boost::shared_ptr<MessageEvent> m
 	preHandleIncomingMessage(message);	
 	String body = message->getBody();
 	if (message->isError()) {
-		String errorMessage = getErrorMessage(message->getPayload<Error>());
+		String errorMessage = getErrorMessage(message->getPayload<ErrorPayload>());
 		chatWindow_->addErrorMessage(errorMessage);
 	}
 	else {
@@ -109,35 +109,35 @@ void ChatControllerBase::handleIncomingMessage(boost::shared_ptr<MessageEvent> m
 	}
 }
 
-String ChatControllerBase::getErrorMessage(boost::shared_ptr<Error> error) {
+String ChatControllerBase::getErrorMessage(boost::shared_ptr<ErrorPayload> error) {
 	String defaultMessage = "Error sending message";
 	if (!error->getText().isEmpty()) {
 		return error->getText();
 	}
 	else {
 		switch (error->getCondition()) {
-			case Error::BadRequest: return defaultMessage; break;
-			case Error::Conflict: return defaultMessage; break;
-			case Error::FeatureNotImplemented: return defaultMessage; break;
-			case Error::Forbidden: return defaultMessage; break;
-			case Error::Gone: return "Recipient can no longer be contacted"; break;
-			case Error::InternalServerError: return "Internal server error"; break;
-			case Error::ItemNotFound: return defaultMessage; break;
-			case Error::JIDMalformed: return defaultMessage; break;
-			case Error::NotAcceptable: return "Message was rejected"; break;
-			case Error::NotAllowed: return defaultMessage; break;
-			case Error::NotAuthorized: return defaultMessage; break;
-			case Error::PaymentRequired: return defaultMessage; break;
-			case Error::RecipientUnavailable: return "Recipient is unavailable."; break;
-			case Error::Redirect: return defaultMessage; break;
-			case Error::RegistrationRequired: return defaultMessage; break;
-			case Error::RemoteServerNotFound: return "Recipient's server not found."; break;
-			case Error::RemoteServerTimeout: return defaultMessage; break;
-			case Error::ResourceConstraint: return defaultMessage; break;
-			case Error::ServiceUnavailable: return defaultMessage; break;
-			case Error::SubscriptionRequired: return defaultMessage; break;
-			case Error::UndefinedCondition: return defaultMessage; break;
-			case Error::UnexpectedRequest: return defaultMessage; break;
+			case ErrorPayload::BadRequest: return defaultMessage; break;
+			case ErrorPayload::Conflict: return defaultMessage; break;
+			case ErrorPayload::FeatureNotImplemented: return defaultMessage; break;
+			case ErrorPayload::Forbidden: return defaultMessage; break;
+			case ErrorPayload::Gone: return "Recipient can no longer be contacted"; break;
+			case ErrorPayload::InternalServerError: return "Internal server error"; break;
+			case ErrorPayload::ItemNotFound: return defaultMessage; break;
+			case ErrorPayload::JIDMalformed: return defaultMessage; break;
+			case ErrorPayload::NotAcceptable: return "Message was rejected"; break;
+			case ErrorPayload::NotAllowed: return defaultMessage; break;
+			case ErrorPayload::NotAuthorized: return defaultMessage; break;
+			case ErrorPayload::PaymentRequired: return defaultMessage; break;
+			case ErrorPayload::RecipientUnavailable: return "Recipient is unavailable."; break;
+			case ErrorPayload::Redirect: return defaultMessage; break;
+			case ErrorPayload::RegistrationRequired: return defaultMessage; break;
+			case ErrorPayload::RemoteServerNotFound: return "Recipient's server not found."; break;
+			case ErrorPayload::RemoteServerTimeout: return defaultMessage; break;
+			case ErrorPayload::ResourceConstraint: return defaultMessage; break;
+			case ErrorPayload::ServiceUnavailable: return defaultMessage; break;
+			case ErrorPayload::SubscriptionRequired: return defaultMessage; break;
+			case ErrorPayload::UndefinedCondition: return defaultMessage; break;
+			case ErrorPayload::UnexpectedRequest: return defaultMessage; break;
 		}
 	}
 	return defaultMessage;
diff --git a/Swift/Controllers/ChatControllerBase.h b/Swift/Controllers/ChatControllerBase.h
index 601e56b..91b72a8 100644
--- a/Swift/Controllers/ChatControllerBase.h
+++ b/Swift/Controllers/ChatControllerBase.h
@@ -12,7 +12,7 @@
 #include "Swiften/Events/MessageEvent.h"
 #include "Swiften/JID/JID.h"
 #include "Swiften/Elements/SecurityLabelsCatalog.h"
-#include "Swiften/Elements/Error.h"
+#include "Swiften/Elements/ErrorPayload.h"
 #include "Swiften/Presence/PresenceOracle.h"
 #include "Swiften/Queries/IQRouter.h"
 
@@ -44,8 +44,8 @@ namespace Swift {
 		private:
 			void handleSendMessageRequest(const String &body);
 			void handleAllMessagesRead();
-			void handleSecurityLabelsCatalogResponse(boost::shared_ptr<SecurityLabelsCatalog>, const boost::optional<Error>& error);
-			String getErrorMessage(boost::shared_ptr<Error>);
+			void handleSecurityLabelsCatalogResponse(boost::shared_ptr<SecurityLabelsCatalog>, const boost::optional<ErrorPayload>& error);
+			String getErrorMessage(boost::shared_ptr<ErrorPayload>);
 
 		protected:
 			JID selfJID_;
diff --git a/Swift/Controllers/MainController.cpp b/Swift/Controllers/MainController.cpp
index 15947b6..6b3b002 100644
--- a/Swift/Controllers/MainController.cpp
+++ b/Swift/Controllers/MainController.cpp
@@ -387,7 +387,7 @@ void MainController::handleIncomingMessage(boost::shared_ptr<Message> message) {
 	}
 }
 
-void MainController::handleServerDiscoInfoResponse(boost::shared_ptr<DiscoInfo> info, const boost::optional<Error>& error) {
+void MainController::handleServerDiscoInfoResponse(boost::shared_ptr<DiscoInfo> info, const boost::optional<ErrorPayload>& error) {
 	if (!error) {
 		serverDiscoInfo_ = info;
 		foreach (JIDChatControllerPair pair, chatControllers_) {
@@ -403,7 +403,7 @@ bool MainController::isMUC(const JID& jid) const {
 	return mucControllers_.find(jid.toBare()) != mucControllers_.end();
 }
 
-void MainController::handleOwnVCardReceived(boost::shared_ptr<VCard> vCard, const boost::optional<Error>& error) {
+void MainController::handleOwnVCardReceived(boost::shared_ptr<VCard> vCard, const boost::optional<ErrorPayload>& error) {
 	if (!error && !vCard->getPhoto().isEmpty()) {
 		vCardPhotoHash_ = SHA1::getHexHash(vCard->getPhoto());
 		if (lastSentPresence_) {
diff --git a/Swift/Controllers/MainController.h b/Swift/Controllers/MainController.h
index 3179df9..db6a110 100644
--- a/Swift/Controllers/MainController.h
+++ b/Swift/Controllers/MainController.h
@@ -10,7 +10,7 @@
 #include "Swiften/JID/JID.h"
 #include "Swiften/Elements/VCard.h"
 #include "Swiften/Elements/DiscoInfo.h"
-#include "Swiften/Elements/Error.h"
+#include "Swiften/Elements/ErrorPayload.h"
 #include "Swiften/Elements/Presence.h"
 #include "Swiften/Elements/Message.h"
 #include "Swiften/Settings/SettingsProvider.h"
@@ -64,9 +64,9 @@ namespace Swift {
 			void handleIncomingMessage(boost::shared_ptr<Message> message);
 			void handleChangeStatusRequest(StatusShow::Type show, const String &statusText);
 			void handleError(const ClientError& error);
-			void handleServerDiscoInfoResponse(boost::shared_ptr<DiscoInfo>, const boost::optional<Error>&);
+			void handleServerDiscoInfoResponse(boost::shared_ptr<DiscoInfo>, const boost::optional<ErrorPayload>&);
 			void handleEventQueueLengthChange(int count);
-			void handleOwnVCardReceived(boost::shared_ptr<VCard> vCard, const boost::optional<Error>& error);
+			void handleOwnVCardReceived(boost::shared_ptr<VCard> vCard, const boost::optional<ErrorPayload>& error);
 			ChatController* getChatController(const JID &contact);
 			void sendPresence(boost::shared_ptr<Presence> presence);
 			void handleInputIdle();
diff --git a/Swiften/Avatars/AvatarManager.cpp b/Swiften/Avatars/AvatarManager.cpp
index 6a1efc6..574e199 100644
--- a/Swiften/Avatars/AvatarManager.cpp
+++ b/Swiften/Avatars/AvatarManager.cpp
@@ -35,7 +35,7 @@ void AvatarManager::handlePresenceReceived(boost::shared_ptr<Presence> presence)
 	}
 }
 
-void AvatarManager::handleVCardReceived(const JID& from, const String& promisedHash, boost::shared_ptr<VCard> vCard, const boost::optional<Error>& error) {
+void AvatarManager::handleVCardReceived(const JID& from, const String& promisedHash, boost::shared_ptr<VCard> vCard, const boost::optional<ErrorPayload>& error) {
 	if (error) {
 		// FIXME: What to do here?
 		std::cerr << "Warning: " << from << ": Could not get vCard" << std::endl;
diff --git a/Swiften/Avatars/AvatarManager.h b/Swiften/Avatars/AvatarManager.h
index 3ac4433..65ec372 100644
--- a/Swiften/Avatars/AvatarManager.h
+++ b/Swiften/Avatars/AvatarManager.h
@@ -9,7 +9,7 @@
 #include "Swiften/JID/JID.h"
 #include "Swiften/Elements/Presence.h"
 #include "Swiften/Elements/VCard.h"
-#include "Swiften/Elements/Error.h"
+#include "Swiften/Elements/ErrorPayload.h"
 
 namespace Swift {
 	class MUCRegistry;
@@ -30,7 +30,7 @@ namespace Swift {
 
 		private:
 			void handlePresenceReceived(boost::shared_ptr<Presence>);
-			void handleVCardReceived(const JID& from, const String& hash, boost::shared_ptr<VCard>, const boost::optional<Error>&);
+			void handleVCardReceived(const JID& from, const String& hash, boost::shared_ptr<VCard>, const boost::optional<ErrorPayload>&);
 			void setAvatarHash(const JID& from, const String& hash);
 			JID getAvatarJID(const JID& o) const;
 
diff --git a/Swiften/Base/Error.cpp b/Swiften/Base/Error.cpp
new file mode 100644
index 0000000..597c155
--- /dev/null
+++ b/Swiften/Base/Error.cpp
@@ -0,0 +1,8 @@
+#include "Swiften/Base/Error.h"
+
+namespace Swift {
+
+Error::~Error() {
+}
+
+}
diff --git a/Swiften/Base/Error.h b/Swiften/Base/Error.h
new file mode 100644
index 0000000..4c729ff
--- /dev/null
+++ b/Swiften/Base/Error.h
@@ -0,0 +1,8 @@
+#pragma once
+
+namespace Swift {
+	class Error {
+		public:
+			virtual ~Error();
+	};
+};
diff --git a/Swiften/Base/SConscript b/Swiften/Base/SConscript
index d308e11..a0984e5 100644
--- a/Swiften/Base/SConscript
+++ b/Swiften/Base/SConscript
@@ -2,6 +2,7 @@ Import("swiften_env")
 
 objects = swiften_env.StaticObject([
 			"ByteArray.cpp",
+			"Error.cpp",
 			"IDGenerator.cpp",
 			"String.cpp",
 			"sleep.cpp",
diff --git a/Swiften/Client/Client.cpp b/Swiften/Client/Client.cpp
index 60dfade..b3bea0d 100644
--- a/Swiften/Client/Client.cpp
+++ b/Swiften/Client/Client.cpp
@@ -10,6 +10,7 @@
 #include "Swiften/Network/BoostConnectionFactory.h"
 #include "Swiften/Network/DomainNameResolveException.h"
 #include "Swiften/TLS/PKCS12Certificate.h"
+#include "Swiften/Session/BasicSessionStream.h"
 
 namespace Swift {
 
@@ -46,6 +47,10 @@ void Client::handleConnectionConnectFinished(bool error) {
 		onError(ClientError::ConnectionError);
 	}
 	else {
+		assert(!sessionStream_);
+		sessionStream_ = boost::shared_ptr<BasicSessionStream>(new BasicSessionStream(connection_, &payloadParserFactories_, &payloadSerializers_, tlsLayerFactory_));
+		sessionStream_->initialize();
+
 		session_ = boost::shared_ptr<ClientSession>(new ClientSession(jid_, connection_, tlsLayerFactory_, &payloadParserFactories_, &payloadSerializers_));
 		if (!certificate_.isEmpty()) {
 			session_->setCertificate(PKCS12Certificate(certificate_, password_));
diff --git a/Swiften/Client/Client.h b/Swiften/Client/Client.h
index 59e1c05..0e68f55 100644
--- a/Swiften/Client/Client.h
+++ b/Swiften/Client/Client.h
@@ -20,6 +20,7 @@ namespace Swift {
 	class TLSLayerFactory;
 	class ConnectionFactory;
 	class ClientSession;
+	class BasicSessionStream;
 
 	class Client : public StanzaChannel, public IQRouter, public boost::bsignals::trackable {
 		public:
@@ -53,6 +54,8 @@ namespace Swift {
 			void handleDataRead(const ByteArray&);
 			void handleDataWritten(const ByteArray&);
 
+			void reset();
+
 		private:
 			JID jid_;
 			String password_;
@@ -61,8 +64,9 @@ namespace Swift {
 			TLSLayerFactory* tlsLayerFactory_;
 			FullPayloadParserFactoryCollection payloadParserFactories_;
 			FullPayloadSerializerCollection payloadSerializers_;
-			boost::shared_ptr<ClientSession> session_;
 			boost::shared_ptr<Connection> connection_;
+			boost::shared_ptr<BasicSessionStream> sessionStream_;
+			boost::shared_ptr<ClientSession> session_;
 			String certificate_;
 	};
 }
diff --git a/Swiften/Client/UnitTest/ClientSessionTest.cpp b/Swiften/Client/UnitTest/ClientSessionTest.cpp
index cbf20d2..70d4ba9 100644
--- a/Swiften/Client/UnitTest/ClientSessionTest.cpp
+++ b/Swiften/Client/UnitTest/ClientSessionTest.cpp
@@ -14,7 +14,7 @@
 #include "Swiften/Elements/ProtocolHeader.h"
 #include "Swiften/Elements/StreamFeatures.h"
 #include "Swiften/Elements/Element.h"
-#include "Swiften/Elements/Error.h"
+#include "Swiften/Elements/ErrorPayload.h"
 #include "Swiften/Elements/IQ.h"
 #include "Swiften/Elements/AuthRequest.h"
 #include "Swiften/Elements/AuthSuccess.h"
diff --git a/Swiften/Elements/Error.h b/Swiften/Elements/Error.h
deleted file mode 100644
index 8793f35..0000000
--- a/Swiften/Elements/Error.h
+++ /dev/null
@@ -1,70 +0,0 @@
-#ifndef SWIFTEN_Error_H
-#define SWIFTEN_Error_H
-
-#include "Swiften/Elements/Payload.h"
-#include "Swiften/Base/String.h"
-
-namespace Swift {
-	class Error : public Payload {
-		public:
-			enum Type { Cancel, Continue, Modify, Auth, Wait };
-
-			enum Condition {
-				BadRequest,
-				Conflict,
-				FeatureNotImplemented,
-				Forbidden,
-				Gone,
-				InternalServerError,
-				ItemNotFound,
-				JIDMalformed,
-				NotAcceptable,
-				NotAllowed,
-				NotAuthorized,
-				PaymentRequired,
-				RecipientUnavailable,
-				Redirect,
-				RegistrationRequired,
-				RemoteServerNotFound,
-				RemoteServerTimeout,
-				ResourceConstraint,
-				ServiceUnavailable,
-				SubscriptionRequired,
-				UndefinedCondition,
-				UnexpectedRequest
-			};
-
-			Error(Condition condition = UndefinedCondition, Type type = Cancel, const String& text = String()) : type_(type), condition_(condition), text_(text) { }
-
-			Type getType() const {
-				return type_; 
-			}
-
-			void setType(Type type) {
-				type_ = type;
-			}
-
-			Condition getCondition() const { 
-				return condition_; 
-			}
-
-			void setCondition(Condition condition) { 
-				condition_ = condition;
-			}
-
-			void setText(const String& text) {
-				text_ = text;
-			}
-
-			const String& getText() const { 
-				return text_; 
-			}
-
-		private:
-			Type type_;
-			Condition condition_;
-			String text_;
-	};
-}
-
-#endif
diff --git a/Swiften/Elements/ErrorPayload.h b/Swiften/Elements/ErrorPayload.h
new file mode 100644
index 0000000..32fd067
--- /dev/null
+++ b/Swiften/Elements/ErrorPayload.h
@@ -0,0 +1,67 @@
+#pragma once
+
+#include "Swiften/Elements/Payload.h"
+#include "Swiften/Base/String.h"
+
+namespace Swift {
+	class ErrorPayload : public Payload {
+		public:
+			enum Type { Cancel, Continue, Modify, Auth, Wait };
+
+			enum Condition {
+				BadRequest,
+				Conflict,
+				FeatureNotImplemented,
+				Forbidden,
+				Gone,
+				InternalServerError,
+				ItemNotFound,
+				JIDMalformed,
+				NotAcceptable,
+				NotAllowed,
+				NotAuthorized,
+				PaymentRequired,
+				RecipientUnavailable,
+				Redirect,
+				RegistrationRequired,
+				RemoteServerNotFound,
+				RemoteServerTimeout,
+				ResourceConstraint,
+				ServiceUnavailable,
+				SubscriptionRequired,
+				UndefinedCondition,
+				UnexpectedRequest
+			};
+
+			ErrorPayload(Condition condition = UndefinedCondition, Type type = Cancel, const String& text = String()) : type_(type), condition_(condition), text_(text) { }
+
+			Type getType() const {
+				return type_; 
+			}
+
+			void setType(Type type) {
+				type_ = type;
+			}
+
+			Condition getCondition() const { 
+				return condition_; 
+			}
+
+			void setCondition(Condition condition) { 
+				condition_ = condition;
+			}
+
+			void setText(const String& text) {
+				text_ = text;
+			}
+
+			const String& getText() const { 
+				return text_; 
+			}
+
+		private:
+			Type type_;
+			Condition condition_;
+			String text_;
+	};
+}
diff --git a/Swiften/Elements/IQ.cpp b/Swiften/Elements/IQ.cpp
index 3f47182..53dec53 100644
--- a/Swiften/Elements/IQ.cpp
+++ b/Swiften/Elements/IQ.cpp
@@ -26,11 +26,11 @@ boost::shared_ptr<IQ> IQ::createResult(
 	return iq;
 }
 
-boost::shared_ptr<IQ> IQ::createError(const JID& to, const String& id, Error::Condition condition, Error::Type type) {
+boost::shared_ptr<IQ> IQ::createError(const JID& to, const String& id, ErrorPayload::Condition condition, ErrorPayload::Type type) {
 	boost::shared_ptr<IQ> iq(new IQ(IQ::Error));
 	iq->setTo(to);
 	iq->setID(id);
-	iq->addPayload(boost::shared_ptr<Swift::Error>(new Swift::Error(condition, type)));
+	iq->addPayload(boost::shared_ptr<Swift::ErrorPayload>(new Swift::ErrorPayload(condition, type)));
 	return iq;
 }
 
diff --git a/Swiften/Elements/IQ.h b/Swiften/Elements/IQ.h
index 231439f..80c2913 100644
--- a/Swiften/Elements/IQ.h
+++ b/Swiften/Elements/IQ.h
@@ -1,8 +1,7 @@
-#ifndef SWIFTEN_IQ_H
-#define SWIFTEN_IQ_H
+#pragma once
 
 #include "Swiften/Elements/Stanza.h"
-#include "Swiften/Elements/Error.h"
+#include "Swiften/Elements/ErrorPayload.h"
 
 namespace Swift 
 {
@@ -28,12 +27,10 @@ namespace Swift
 			static boost::shared_ptr<IQ> createError(
 					const JID& to,
 					const String& id,
-					Error::Condition condition,
-					Error::Type type);
+					ErrorPayload::Condition condition,
+					ErrorPayload::Type type);
 
 		private:
 			Type type_;
 	};
 }
-
-#endif
diff --git a/Swiften/Elements/Message.h b/Swiften/Elements/Message.h
index a49f496..6d9171f 100644
--- a/Swiften/Elements/Message.h
+++ b/Swiften/Elements/Message.h
@@ -1,11 +1,10 @@
-#ifndef SWIFTEN_STANZAS_MESSAGE_H
-#define SWIFTEN_STANZAS_MESSAGE_H
+#pragma once
 
 #include <boost/optional.hpp>
 
 #include "Swiften/Base/String.h"
 #include "Swiften/Elements/Body.h"
-#include "Swiften/Elements/Error.h"
+#include "Swiften/Elements/ErrorPayload.h"
 #include "Swiften/Elements/Stanza.h"
 
 namespace Swift
@@ -30,8 +29,8 @@ namespace Swift
 			}
 
 			bool isError() {
-				boost::shared_ptr<Swift::Error> error(getPayload<Swift::Error>());
-				return getType() == Message::Error || error.get() != NULL;
+				boost::shared_ptr<Swift::ErrorPayload> error(getPayload<Swift::ErrorPayload>());
+				return getType() == Message::Error || error;
 			}
 
 			Type getType() const { return type_; }
@@ -42,5 +41,3 @@ namespace Swift
 			Type type_;
 	};
 }
-
-#endif
diff --git a/Swiften/Elements/UnitTest/IQTest.cpp b/Swiften/Elements/UnitTest/IQTest.cpp
index bc22c81..a5e6dc8 100644
--- a/Swiften/Elements/UnitTest/IQTest.cpp
+++ b/Swiften/Elements/UnitTest/IQTest.cpp
@@ -37,14 +37,14 @@ class IQTest : public CppUnit::TestFixture
 		}
 
 		void testCreateError() {
-			boost::shared_ptr<IQ> iq(IQ::createError(JID("foo@bar/fum"), "myid", Error::BadRequest, Error::Modify));
+			boost::shared_ptr<IQ> iq(IQ::createError(JID("foo@bar/fum"), "myid", ErrorPayload::BadRequest, ErrorPayload::Modify));
 
 			CPPUNIT_ASSERT_EQUAL(JID("foo@bar/fum"), iq->getTo());
 			CPPUNIT_ASSERT_EQUAL(String("myid"), iq->getID());
-			boost::shared_ptr<Error> error(iq->getPayload<Error>());
+			boost::shared_ptr<ErrorPayload> error(iq->getPayload<ErrorPayload>());
 			CPPUNIT_ASSERT(error);
-			CPPUNIT_ASSERT_EQUAL(Error::BadRequest, error->getCondition());
-			CPPUNIT_ASSERT_EQUAL(Error::Modify, error->getType());
+			CPPUNIT_ASSERT_EQUAL(ErrorPayload::BadRequest, error->getCondition());
+			CPPUNIT_ASSERT_EQUAL(ErrorPayload::Modify, error->getType());
 		}
 
 };
diff --git a/Swiften/Parser/PayloadParsers/ErrorParser.cpp b/Swiften/Parser/PayloadParsers/ErrorParser.cpp
index 13380c8..ae85265 100644
--- a/Swiften/Parser/PayloadParsers/ErrorParser.cpp
+++ b/Swiften/Parser/PayloadParsers/ErrorParser.cpp
@@ -9,19 +9,19 @@ void ErrorParser::handleStartElement(const String&, const String&, const Attribu
 	if (level_ == TopLevel) {
 		String type = attributes.getAttribute("type");
 		if (type == "continue") {
-			getPayloadInternal()->setType(Error::Continue);
+			getPayloadInternal()->setType(ErrorPayload::Continue);
 		}
 		else if (type == "modify") {
-			getPayloadInternal()->setType(Error::Modify);
+			getPayloadInternal()->setType(ErrorPayload::Modify);
 		}
 		else if (type == "auth") {
-			getPayloadInternal()->setType(Error::Auth);
+			getPayloadInternal()->setType(ErrorPayload::Auth);
 		}
 		else if (type == "wait") {
-			getPayloadInternal()->setType(Error::Wait);
+			getPayloadInternal()->setType(ErrorPayload::Wait);
 		}
 		else {
-			getPayloadInternal()->setType(Error::Cancel);
+			getPayloadInternal()->setType(ErrorPayload::Cancel);
 		}
 	}
 	++level_;
@@ -34,70 +34,70 @@ void ErrorParser::handleEndElement(const String& element, const String&) {
 			getPayloadInternal()->setText(currentText_);
 		}
 		else if (element == "bad-request") {
-			getPayloadInternal()->setCondition(Error::BadRequest);
+			getPayloadInternal()->setCondition(ErrorPayload::BadRequest);
 		}
 		else if (element == "conflict") {
-			getPayloadInternal()->setCondition(Error::Conflict);
+			getPayloadInternal()->setCondition(ErrorPayload::Conflict);
 		}
 		else if (element == "feature-not-implemented") {
-			getPayloadInternal()->setCondition(Error::FeatureNotImplemented);
+			getPayloadInternal()->setCondition(ErrorPayload::FeatureNotImplemented);
 		}
 		else if (element == "forbidden") {
-			getPayloadInternal()->setCondition(Error::Forbidden);
+			getPayloadInternal()->setCondition(ErrorPayload::Forbidden);
 		}
 		else if (element == "gone") {
-			getPayloadInternal()->setCondition(Error::Gone);
+			getPayloadInternal()->setCondition(ErrorPayload::Gone);
 		}
 		else if (element == "internal-server-error") {
-			getPayloadInternal()->setCondition(Error::InternalServerError);
+			getPayloadInternal()->setCondition(ErrorPayload::InternalServerError);
 		}
 		else if (element == "item-not-found") {
-			getPayloadInternal()->setCondition(Error::ItemNotFound);
+			getPayloadInternal()->setCondition(ErrorPayload::ItemNotFound);
 		}
 		else if (element == "jid-malformed") {
-			getPayloadInternal()->setCondition(Error::JIDMalformed);
+			getPayloadInternal()->setCondition(ErrorPayload::JIDMalformed);
 		}
 		else if (element == "not-acceptable") {
-			getPayloadInternal()->setCondition(Error::NotAcceptable);
+			getPayloadInternal()->setCondition(ErrorPayload::NotAcceptable);
 		}
 		else if (element == "not-allowed") {
-			getPayloadInternal()->setCondition(Error::NotAllowed);
+			getPayloadInternal()->setCondition(ErrorPayload::NotAllowed);
 		}
 		else if (element == "not-authorized") {
-			getPayloadInternal()->setCondition(Error::NotAuthorized);
+			getPayloadInternal()->setCondition(ErrorPayload::NotAuthorized);
 		}
 		else if (element == "payment-required") {
-			getPayloadInternal()->setCondition(Error::PaymentRequired);
+			getPayloadInternal()->setCondition(ErrorPayload::PaymentRequired);
 		}
 		else if (element == "recipient-unavailable") {
-			getPayloadInternal()->setCondition(Error::RecipientUnavailable);
+			getPayloadInternal()->setCondition(ErrorPayload::RecipientUnavailable);
 		}
 		else if (element == "redirect") {
-			getPayloadInternal()->setCondition(Error::Redirect);
+			getPayloadInternal()->setCondition(ErrorPayload::Redirect);
 		}
 		else if (element == "registration-required") {
-			getPayloadInternal()->setCondition(Error::RegistrationRequired);
+			getPayloadInternal()->setCondition(ErrorPayload::RegistrationRequired);
 		}
 		else if (element == "remote-server-not-found") {
-			getPayloadInternal()->setCondition(Error::RemoteServerNotFound);
+			getPayloadInternal()->setCondition(ErrorPayload::RemoteServerNotFound);
 		}
 		else if (element == "remote-server-timeout") {
-			getPayloadInternal()->setCondition(Error::RemoteServerTimeout);
+			getPayloadInternal()->setCondition(ErrorPayload::RemoteServerTimeout);
 		}
 		else if (element == "resource-constraint") {
-			getPayloadInternal()->setCondition(Error::ResourceConstraint);
+			getPayloadInternal()->setCondition(ErrorPayload::ResourceConstraint);
 		}
 		else if (element == "service-unavailable") {
-			getPayloadInternal()->setCondition(Error::ServiceUnavailable);
+			getPayloadInternal()->setCondition(ErrorPayload::ServiceUnavailable);
 		}
 		else if (element == "subscription-required") {
-			getPayloadInternal()->setCondition(Error::SubscriptionRequired);
+			getPayloadInternal()->setCondition(ErrorPayload::SubscriptionRequired);
 		}
 		else if (element == "unexpected-request") {
-			getPayloadInternal()->setCondition(Error::UnexpectedRequest);
+			getPayloadInternal()->setCondition(ErrorPayload::UnexpectedRequest);
 		}
 		else {
-			getPayloadInternal()->setCondition(Error::UndefinedCondition);
+			getPayloadInternal()->setCondition(ErrorPayload::UndefinedCondition);
 		}
 	}
 }
diff --git a/Swiften/Parser/PayloadParsers/ErrorParser.h b/Swiften/Parser/PayloadParsers/ErrorParser.h
index 76db205..17b78b9 100644
--- a/Swiften/Parser/PayloadParsers/ErrorParser.h
+++ b/Swiften/Parser/PayloadParsers/ErrorParser.h
@@ -1,11 +1,11 @@
 #ifndef SWIFTEN_ErrorParser_H
 #define SWIFTEN_ErrorParser_H
 
-#include "Swiften/Elements/Error.h"
+#include "Swiften/Elements/ErrorPayload.h"
 #include "Swiften/Parser/GenericPayloadParser.h"
 
 namespace Swift {
-	class ErrorParser : public GenericPayloadParser<Error> {
+	class ErrorParser : public GenericPayloadParser<ErrorPayload> {
 		public:
 			ErrorParser();
 
diff --git a/Swiften/Parser/PayloadParsers/UnitTest/ErrorParserTest.cpp b/Swiften/Parser/PayloadParsers/UnitTest/ErrorParserTest.cpp
index 338fb3f..dcd3172 100644
--- a/Swiften/Parser/PayloadParsers/UnitTest/ErrorParserTest.cpp
+++ b/Swiften/Parser/PayloadParsers/UnitTest/ErrorParserTest.cpp
@@ -24,9 +24,9 @@ class ErrorParserTest : public CppUnit::TestFixture
 					"<text xmlns=\"urn:ietf:params:xml:ns:xmpp-stanzas\">boo</text>"
 				"</error>"));
 
-			Error* payload = dynamic_cast<Error*>(parser.getPayload().get());
-			CPPUNIT_ASSERT_EQUAL(Error::BadRequest, payload->getCondition());
-			CPPUNIT_ASSERT_EQUAL(Error::Modify, payload->getType());
+			ErrorPayload* payload = dynamic_cast<ErrorPayload*>(parser.getPayload().get());
+			CPPUNIT_ASSERT_EQUAL(ErrorPayload::BadRequest, payload->getCondition());
+			CPPUNIT_ASSERT_EQUAL(ErrorPayload::Modify, payload->getType());
 			CPPUNIT_ASSERT_EQUAL(String("boo"), payload->getText());
 		}
 };
diff --git a/Swiften/Queries/GenericRequest.h b/Swiften/Queries/GenericRequest.h
index b4a1918..77dae52 100644
--- a/Swiften/Queries/GenericRequest.h
+++ b/Swiften/Queries/GenericRequest.h
@@ -1,5 +1,4 @@
-#ifndef SWIFTEN_GenericRequest_H
-#define SWIFTEN_GenericRequest_H
+#pragma once
 
 #include <boost/signal.hpp>
 
@@ -17,13 +16,11 @@ namespace Swift {
 						Request(type, receiver, payload, router) {
 			}
 
-			virtual void handleResponse(boost::shared_ptr<Payload> payload, boost::optional<Error> error) {
+			virtual void handleResponse(boost::shared_ptr<Payload> payload, boost::optional<ErrorPayload> error) {
 				onResponse(boost::dynamic_pointer_cast<PAYLOAD_TYPE>(payload), error);
 			}
 
 		public:
-			boost::signal<void (boost::shared_ptr<PAYLOAD_TYPE>, const boost::optional<Error>&)> onResponse;
+			boost::signal<void (boost::shared_ptr<PAYLOAD_TYPE>, const boost::optional<ErrorPayload>&)> onResponse;
 	};
 }
-
-#endif
diff --git a/Swiften/Queries/IQRouter.cpp b/Swiften/Queries/IQRouter.cpp
index ffed5f7..fdfa00b 100644
--- a/Swiften/Queries/IQRouter.cpp
+++ b/Swiften/Queries/IQRouter.cpp
@@ -6,7 +6,7 @@
 #include "Swiften/Base/foreach.h"
 #include "Swiften/Queries/IQHandler.h"
 #include "Swiften/Queries/IQChannel.h"
-#include "Swiften/Elements/Error.h"
+#include "Swiften/Elements/ErrorPayload.h"
 
 namespace Swift {
 
@@ -34,7 +34,7 @@ void IQRouter::handleIQ(boost::shared_ptr<IQ> iq) {
 		}
 	}
 	if (!handled && (iq->getType() == IQ::Get || iq->getType() == IQ::Set) ) {
-		channel_->sendIQ(IQ::createError(iq->getFrom(), iq->getID(), Error::FeatureNotImplemented, Error::Cancel));
+		channel_->sendIQ(IQ::createError(iq->getFrom(), iq->getID(), ErrorPayload::FeatureNotImplemented, ErrorPayload::Cancel));
 	}
 
 	processPendingRemoves();
diff --git a/Swiften/Queries/Request.cpp b/Swiften/Queries/Request.cpp
index 90aa295..18446ae 100644
--- a/Swiften/Queries/Request.cpp
+++ b/Swiften/Queries/Request.cpp
@@ -35,11 +35,11 @@ bool Request::handleIQ(boost::shared_ptr<IQ> iq) {
 	bool handled = false;
 	if (sent_ && iq->getID() == id_) {
 		if (iq->getType() == IQ::Result) {
-			handleResponse(iq->getPayloadOfSameType(payload_), boost::optional<Error>());
+			handleResponse(iq->getPayloadOfSameType(payload_), boost::optional<ErrorPayload>());
 		}
 		else {
 			// FIXME: Get proper error
-			handleResponse(boost::shared_ptr<Payload>(), boost::optional<Error>(Error::UndefinedCondition));
+			handleResponse(boost::shared_ptr<Payload>(), boost::optional<ErrorPayload>(ErrorPayload::UndefinedCondition));
 		}
 		router_->removeHandler(this);
 		handled = true;
diff --git a/Swiften/Queries/Request.h b/Swiften/Queries/Request.h
index 8f7a1d1..cc4a58e 100644
--- a/Swiften/Queries/Request.h
+++ b/Swiften/Queries/Request.h
@@ -9,7 +9,7 @@
 #include "Swiften/Queries/IQHandler.h"
 #include "Swiften/Elements/IQ.h"
 #include "Swiften/Elements/Payload.h"
-#include "Swiften/Elements/Error.h"
+#include "Swiften/Elements/ErrorPayload.h"
 #include "Swiften/JID/JID.h"
 
 namespace Swift {
@@ -32,7 +32,7 @@ namespace Swift {
 				payload_ = p;
 			}
 
-			virtual void handleResponse(boost::shared_ptr<Payload>, boost::optional<Error>) = 0;
+			virtual void handleResponse(boost::shared_ptr<Payload>, boost::optional<ErrorPayload>) = 0;
 
 		private:
 			bool handleIQ(boost::shared_ptr<IQ>);
diff --git a/Swiften/Queries/Requests/GetPrivateStorageRequest.h b/Swiften/Queries/Requests/GetPrivateStorageRequest.h
index c5f8aef..5d6440e 100644
--- a/Swiften/Queries/Requests/GetPrivateStorageRequest.h
+++ b/Swiften/Queries/Requests/GetPrivateStorageRequest.h
@@ -5,7 +5,7 @@
 
 #include "Swiften/Queries/Request.h"
 #include "Swiften/Elements/PrivateStorage.h"
-#include "Swiften/Elements/Error.h"
+#include "Swiften/Elements/ErrorPayload.h"
 
 namespace Swift {
 	template<typename PAYLOAD_TYPE>
@@ -14,7 +14,7 @@ namespace Swift {
 			GetPrivateStorageRequest(IQRouter* router) : Request(IQ::Get, JID(), boost::shared_ptr<PrivateStorage>(new PrivateStorage(boost::shared_ptr<Payload>(new PAYLOAD_TYPE()))), router) {
 			}
 
-			virtual void handleResponse(boost::shared_ptr<Payload> payload, boost::optional<Error> error) {
+			virtual void handleResponse(boost::shared_ptr<Payload> payload, boost::optional<ErrorPayload> error) {
 				boost::shared_ptr<PrivateStorage> storage = boost::dynamic_pointer_cast<PrivateStorage>(payload);
 				if (storage) {
 					onResponse(boost::dynamic_pointer_cast<PAYLOAD_TYPE>(storage->getPayload()), error);
@@ -25,6 +25,6 @@ namespace Swift {
 			}
 
 		public:
-			boost::signal<void (boost::shared_ptr<PAYLOAD_TYPE>, const boost::optional<Error>&)> onResponse;
+			boost::signal<void (boost::shared_ptr<PAYLOAD_TYPE>, const boost::optional<ErrorPayload>&)> onResponse;
 	};
 }
diff --git a/Swiften/Queries/Requests/SetPrivateStorageRequest.h b/Swiften/Queries/Requests/SetPrivateStorageRequest.h
index 63ac8dc..834ddd8 100644
--- a/Swiften/Queries/Requests/SetPrivateStorageRequest.h
+++ b/Swiften/Queries/Requests/SetPrivateStorageRequest.h
@@ -5,7 +5,7 @@
 
 #include "Swiften/Queries/Request.h"
 #include "Swiften/Elements/PrivateStorage.h"
-#include "Swiften/Elements/Error.h"
+#include "Swiften/Elements/ErrorPayload.h"
 
 namespace Swift {
 	template<typename PAYLOAD_TYPE>
@@ -14,11 +14,11 @@ namespace Swift {
 			SetPrivateStorageRequest(boost::shared_ptr<PAYLOAD_TYPE> payload, IQRouter* router) : Request(IQ::Set, JID(), boost::shared_ptr<PrivateStorage>(new PrivateStorage(payload)), router) {
 			}
 
-			virtual void handleResponse(boost::shared_ptr<Payload> payload, boost::optional<Error> error) {
+			virtual void handleResponse(boost::shared_ptr<Payload> payload, boost::optional<ErrorPayload> error) {
 				onResponse(error);
 			}
 
 		public:
-			boost::signal<void (const boost::optional<Error>&)> onResponse;
+			boost::signal<void (const boost::optional<ErrorPayload>&)> onResponse;
 	};
 }
diff --git a/Swiften/Queries/Requests/UnitTest/GetPrivateStorageRequestTest.cpp b/Swiften/Queries/Requests/UnitTest/GetPrivateStorageRequestTest.cpp
index 14e04cf..a86a111 100644
--- a/Swiften/Queries/Requests/UnitTest/GetPrivateStorageRequestTest.cpp
+++ b/Swiften/Queries/Requests/UnitTest/GetPrivateStorageRequestTest.cpp
@@ -72,7 +72,7 @@ class GetPrivateStorageRequestTest : public CppUnit::TestFixture
 		}
 
 	private:
-		void handleResponse(boost::shared_ptr<Payload> p, const boost::optional<Error>& e) {
+		void handleResponse(boost::shared_ptr<Payload> p, const boost::optional<ErrorPayload>& e) {
 			if (e) {
 				errors.push_back(*e);
 			}
@@ -99,7 +99,7 @@ class GetPrivateStorageRequestTest : public CppUnit::TestFixture
 	private:
 		IQRouter* router;
 		DummyIQChannel* channel;
-		std::vector< Error > errors;
+		std::vector< ErrorPayload > errors;
 		std::vector< boost::shared_ptr<Payload> > responses;
 };
 
diff --git a/Swiften/Queries/Responder.h b/Swiften/Queries/Responder.h
index e6e8ca6..9c025eb 100644
--- a/Swiften/Queries/Responder.h
+++ b/Swiften/Queries/Responder.h
@@ -3,7 +3,7 @@
 
 #include "Swiften/Queries/IQHandler.h"
 #include "Swiften/Queries/IQRouter.h"
-#include "Swiften/Elements/Error.h"
+#include "Swiften/Elements/ErrorPayload.h"
 
 namespace Swift {
 	template<typename PAYLOAD_TYPE>
@@ -25,7 +25,7 @@ namespace Swift {
 				router_->sendIQ(IQ::createResult(to, id, payload));
 			}
 
-			void sendError(const JID& to, const String& id, Error::Condition condition, Error::Type type) {
+			void sendError(const JID& to, const String& id, ErrorPayload::Condition condition, ErrorPayload::Type type) {
 				router_->sendIQ(IQ::createError(to, id, condition, type));
 			}
 
@@ -42,7 +42,7 @@ namespace Swift {
 							result = handleGetRequest(iq->getFrom(), iq->getID(), payload);
 						}
 						if (!result) {
-							router_->sendIQ(IQ::createError(iq->getFrom(), iq->getID(), Error::NotAllowed, Error::Cancel));
+							router_->sendIQ(IQ::createError(iq->getFrom(), iq->getID(), ErrorPayload::NotAllowed, ErrorPayload::Cancel));
 						}
 						return true;
 					}
diff --git a/Swiften/Queries/Responders/DiscoInfoResponder.cpp b/Swiften/Queries/Responders/DiscoInfoResponder.cpp
index a114fbc..572f83f 100644
--- a/Swiften/Queries/Responders/DiscoInfoResponder.cpp
+++ b/Swiften/Queries/Responders/DiscoInfoResponder.cpp
@@ -27,7 +27,7 @@ bool DiscoInfoResponder::handleGetRequest(const JID& from, const String& id, boo
 			sendResponse(from, id, boost::shared_ptr<DiscoInfo>(new DiscoInfo((*i).second)));
 		}
 		else {
-			sendError(from, id, Error::ItemNotFound, Error::Cancel);
+			sendError(from, id, ErrorPayload::ItemNotFound, ErrorPayload::Cancel);
 		}
 	}
 	return true;
diff --git a/Swiften/Queries/Responders/UnitTest/DiscoInfoResponderTest.cpp b/Swiften/Queries/Responders/UnitTest/DiscoInfoResponderTest.cpp
index 6ed7b9e..5993d0c 100644
--- a/Swiften/Queries/Responders/UnitTest/DiscoInfoResponderTest.cpp
+++ b/Swiften/Queries/Responders/UnitTest/DiscoInfoResponderTest.cpp
@@ -72,7 +72,7 @@ class DiscoInfoResponderTest : public CppUnit::TestFixture {
 			channel_->onIQReceived(IQ::createRequest(IQ::Get, JID("foo@bar.com"), "id-1", query));
 
 			CPPUNIT_ASSERT_EQUAL(1, static_cast<int>(channel_->iqs_.size()));
-			boost::shared_ptr<Error> payload(channel_->iqs_[0]->getPayload<Error>());
+			boost::shared_ptr<ErrorPayload> payload(channel_->iqs_[0]->getPayload<ErrorPayload>());
 			CPPUNIT_ASSERT(payload);
 		}
 
diff --git a/Swiften/Queries/UnitTest/IQRouterTest.cpp b/Swiften/Queries/UnitTest/IQRouterTest.cpp
index 94b7de8..5760b09 100644
--- a/Swiften/Queries/UnitTest/IQRouterTest.cpp
+++ b/Swiften/Queries/UnitTest/IQRouterTest.cpp
@@ -87,7 +87,7 @@ class IQRouterTest : public CppUnit::TestFixture
 			channel_->onIQReceived(boost::shared_ptr<IQ>(new IQ()));
 
 			CPPUNIT_ASSERT_EQUAL(1, static_cast<int>(channel_->iqs_.size()));
-			CPPUNIT_ASSERT(channel_->iqs_[0]->getPayload<Error>());
+			CPPUNIT_ASSERT(channel_->iqs_[0]->getPayload<ErrorPayload>());
 		}
 
 
diff --git a/Swiften/Queries/UnitTest/RequestTest.cpp b/Swiften/Queries/UnitTest/RequestTest.cpp
index ea6dee6..51d5a51 100644
--- a/Swiften/Queries/UnitTest/RequestTest.cpp
+++ b/Swiften/Queries/UnitTest/RequestTest.cpp
@@ -113,7 +113,7 @@ class RequestTest : public CppUnit::TestFixture
 		}
 	
 	private:
-		void handleResponse(boost::shared_ptr<Payload> p, const boost::optional<Error>& e) {
+		void handleResponse(boost::shared_ptr<Payload> p, const boost::optional<ErrorPayload>& e) {
 			if (e) {
 				++errorsReceived_;
 			}
diff --git a/Swiften/SConscript b/Swiften/SConscript
index 148f1f8..35728be 100644
--- a/Swiften/SConscript
+++ b/Swiften/SConscript
@@ -75,6 +75,8 @@ sources = [
 		"Server/SimpleUserRegistry.cpp",
 		"Server/UserRegistry.cpp",
 		"Session/Session.cpp",
+		"Session/SessionStream.cpp",
+		"Session/BasicSessionStream.cpp",
 		"StringCodecs/Base64.cpp",
 		"StringCodecs/SHA1.cpp",
 	]
diff --git a/Swiften/Serializer/PayloadSerializers/ErrorSerializer.cpp b/Swiften/Serializer/PayloadSerializers/ErrorSerializer.cpp
index 347e1a5..f5ce478 100644
--- a/Swiften/Serializer/PayloadSerializers/ErrorSerializer.cpp
+++ b/Swiften/Serializer/PayloadSerializers/ErrorSerializer.cpp
@@ -3,43 +3,43 @@
 
 namespace Swift {
 
-ErrorSerializer::ErrorSerializer() : GenericPayloadSerializer<Error>() {
+ErrorSerializer::ErrorSerializer() : GenericPayloadSerializer<ErrorPayload>() {
 }
 
-String ErrorSerializer::serializePayload(boost::shared_ptr<Error> error)  const {
+String ErrorSerializer::serializePayload(boost::shared_ptr<ErrorPayload> error)  const {
 	String result("<error type=\"");
 	switch (error->getType()) {
-		case Error::Continue: result += "continue"; break;
-		case Error::Modify: result += "modify"; break;
-		case Error::Auth: result += "auth"; break;
-		case Error::Wait: result += "wait"; break;
+		case ErrorPayload::Continue: result += "continue"; break;
+		case ErrorPayload::Modify: result += "modify"; break;
+		case ErrorPayload::Auth: result += "auth"; break;
+		case ErrorPayload::Wait: result += "wait"; break;
 		default: result += "cancel"; break;
 	}
 	result += "\">";
 
 	String conditionElement;
 	switch (error->getCondition()) {
-		case Error::BadRequest: conditionElement = "bad-request"; break;
-		case Error::Conflict: conditionElement = "conflict"; break;
-		case Error::FeatureNotImplemented: conditionElement = "feature-not-implemented"; break;
-		case Error::Forbidden: conditionElement = "forbidden"; break;
-		case Error::Gone: conditionElement = "gone"; break;
-		case Error::InternalServerError: conditionElement = "internal-server-error"; break;
-		case Error::ItemNotFound: conditionElement = "item-not-found"; break;
-		case Error::JIDMalformed: conditionElement = "jid-malformed"; break;
-		case Error::NotAcceptable: conditionElement = "not-acceptable"; break;
-		case Error::NotAllowed: conditionElement = "not-allowed"; break;
-		case Error::NotAuthorized: conditionElement = "not-authorized"; break;
-		case Error::PaymentRequired: conditionElement = "payment-required"; break;
-		case Error::RecipientUnavailable: conditionElement = "recipient-unavailable"; break;
-		case Error::Redirect: conditionElement = "redirect"; break;
-		case Error::RegistrationRequired: conditionElement = "registration-required"; break;
-		case Error::RemoteServerNotFound: conditionElement = "remote-server-not-found"; break;
-		case Error::RemoteServerTimeout: conditionElement = "remote-server-timeout"; break;
-		case Error::ResourceConstraint: conditionElement = "resource-constraint"; break;
-		case Error::ServiceUnavailable: conditionElement = "service-unavailable"; break;
-		case Error::SubscriptionRequired: conditionElement = "subscription-required"; break;
-		case Error::UnexpectedRequest: conditionElement = "unexpected-request"; break;
+		case ErrorPayload::BadRequest: conditionElement = "bad-request"; break;
+		case ErrorPayload::Conflict: conditionElement = "conflict"; break;
+		case ErrorPayload::FeatureNotImplemented: conditionElement = "feature-not-implemented"; break;
+		case ErrorPayload::Forbidden: conditionElement = "forbidden"; break;
+		case ErrorPayload::Gone: conditionElement = "gone"; break;
+		case ErrorPayload::InternalServerError: conditionElement = "internal-server-error"; break;
+		case ErrorPayload::ItemNotFound: conditionElement = "item-not-found"; break;
+		case ErrorPayload::JIDMalformed: conditionElement = "jid-malformed"; break;
+		case ErrorPayload::NotAcceptable: conditionElement = "not-acceptable"; break;
+		case ErrorPayload::NotAllowed: conditionElement = "not-allowed"; break;
+		case ErrorPayload::NotAuthorized: conditionElement = "not-authorized"; break;
+		case ErrorPayload::PaymentRequired: conditionElement = "payment-required"; break;
+		case ErrorPayload::RecipientUnavailable: conditionElement = "recipient-unavailable"; break;
+		case ErrorPayload::Redirect: conditionElement = "redirect"; break;
+		case ErrorPayload::RegistrationRequired: conditionElement = "registration-required"; break;
+		case ErrorPayload::RemoteServerNotFound: conditionElement = "remote-server-not-found"; break;
+		case ErrorPayload::RemoteServerTimeout: conditionElement = "remote-server-timeout"; break;
+		case ErrorPayload::ResourceConstraint: conditionElement = "resource-constraint"; break;
+		case ErrorPayload::ServiceUnavailable: conditionElement = "service-unavailable"; break;
+		case ErrorPayload::SubscriptionRequired: conditionElement = "subscription-required"; break;
+		case ErrorPayload::UnexpectedRequest: conditionElement = "unexpected-request"; break;
 		default: conditionElement = "undefined-condition"; break;
 	}
 	result += "<" + conditionElement + " xmlns=\"urn:ietf:params:xml:ns:xmpp-stanzas\"/>";
diff --git a/Swiften/Serializer/PayloadSerializers/ErrorSerializer.h b/Swiften/Serializer/PayloadSerializers/ErrorSerializer.h
index ecf73dc..931596f 100644
--- a/Swiften/Serializer/PayloadSerializers/ErrorSerializer.h
+++ b/Swiften/Serializer/PayloadSerializers/ErrorSerializer.h
@@ -2,14 +2,14 @@
 #define SWIFTEN_ErrorSerializer_H
 
 #include "Swiften/Serializer/GenericPayloadSerializer.h"
-#include "Swiften/Elements/Error.h"
+#include "Swiften/Elements/ErrorPayload.h"
 
 namespace Swift {
-	class ErrorSerializer : public GenericPayloadSerializer<Error> {
+	class ErrorSerializer : public GenericPayloadSerializer<ErrorPayload> {
 		public:
 			ErrorSerializer();
 
-			virtual String serializePayload(boost::shared_ptr<Error> error)  const;
+			virtual String serializePayload(boost::shared_ptr<ErrorPayload> error)  const;
 	};
 }
 
diff --git a/Swiften/Serializer/PayloadSerializers/UnitTest/ErrorSerializerTest.cpp b/Swiften/Serializer/PayloadSerializers/UnitTest/ErrorSerializerTest.cpp
index 2d68a3d..ecd904a 100644
--- a/Swiften/Serializer/PayloadSerializers/UnitTest/ErrorSerializerTest.cpp
+++ b/Swiften/Serializer/PayloadSerializers/UnitTest/ErrorSerializerTest.cpp
@@ -16,7 +16,7 @@ class ErrorSerializerTest : public CppUnit::TestFixture
 
 		void testSerialize() {
 			ErrorSerializer testling;
-			boost::shared_ptr<Error> error(new Error(Error::BadRequest, Error::Cancel, "My Error"));
+			boost::shared_ptr<ErrorPayload> error(new ErrorPayload(ErrorPayload::BadRequest, ErrorPayload::Cancel, "My Error"));
 
 			CPPUNIT_ASSERT_EQUAL(String("<error type=\"cancel\"><bad-request xmlns=\"urn:ietf:params:xml:ns:xmpp-stanzas\"/><text xmlns=\"urn:ietf:params:xml:ns:xmpp-stanzas\">My Error</text></error>"), testling.serialize(error));
 		}
diff --git a/Swiften/Session/BasicSessionStream.cpp b/Swiften/Session/BasicSessionStream.cpp
index 46d4e16..73eaf5b 100644
--- a/Swiften/Session/BasicSessionStream.cpp
+++ b/Swiften/Session/BasicSessionStream.cpp
@@ -13,13 +13,16 @@
 
 namespace Swift {
 
-BasicSessionStream::BasicSessionStream(boost::shared_ptr<Connection> connection, PayloadParserFactoryCollection* payloadParserFactories, PayloadSerializerCollection* payloadSerializers, TLSLayerFactory* tlsLayerFactory) : tlsLayerFactory(tlsLayerFactory) {
+BasicSessionStream::BasicSessionStream(boost::shared_ptr<Connection> connection, PayloadParserFactoryCollection* payloadParserFactories, PayloadSerializerCollection* payloadSerializers, TLSLayerFactory* tlsLayerFactory) : connection(connection), payloadParserFactories(payloadParserFactories), payloadSerializers(payloadSerializers), tlsLayerFactory(tlsLayerFactory) {
+}
+
+void BasicSessionStream::initialize() {
 	xmppLayer = boost::shared_ptr<XMPPLayer>(
 			new XMPPLayer(payloadParserFactories, payloadSerializers));
-	xmppLayer->onStreamStart.connect(boost::ref(onStreamStartReceived));
-	xmppLayer->onElement.connect(boost::ref(onElementReceived));
+	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, this));
+      &BasicSessionStream::handleXMPPError, shared_from_this()));
 
 	connectionLayer = boost::shared_ptr<ConnectionLayer>(
       new ConnectionLayer(connection));
@@ -47,7 +50,7 @@ void BasicSessionStream::addTLSEncryption() {
 	tlsLayer = tlsLayerFactory->createTLSLayer();
   streamStack->addLayer(tlsLayer);
   // TODO: Add tls layer certificate if needed
-  tlsLayer->onError.connect(boost::bind(&BasicSessionStream::handleTLSError, this));
+  tlsLayer->onError.connect(boost::bind(&BasicSessionStream::handleTLSError, shared_from_this()));
   tlsLayer->connect();
 }
 
@@ -61,12 +64,20 @@ 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() {
-  // TODO
+	onError(boost::shared_ptr<Error>(new Error()));
 }
 
 void BasicSessionStream::handleTLSError() {
-  // TODO
+	onError(boost::shared_ptr<Error>(new Error()));
 }
 
 };
diff --git a/Swiften/Session/BasicSessionStream.h b/Swiften/Session/BasicSessionStream.h
index bf92bbb..d248ebc 100644
--- a/Swiften/Session/BasicSessionStream.h
+++ b/Swiften/Session/BasicSessionStream.h
@@ -1,6 +1,7 @@
 #pragma once
 
 #include <boost/shared_ptr.hpp>
+#include <boost/enable_shared_from_this.hpp>
 
 #include "Swiften/Network/Connection.h"
 #include "Swiften/Session/SessionStream.h"
@@ -17,7 +18,7 @@ namespace Swift {
 
   class BasicSessionStream : 
       public SessionStream, 
-      public boost::BOOST_SIGNALS_NAMESPACE::trackable {
+      public boost::enable_shared_from_this<BasicSessionStream> {
     public:
       BasicSessionStream(
 		    boost::shared_ptr<Connection> connection,
@@ -27,6 +28,8 @@ namespace Swift {
       );
       ~BasicSessionStream();
 
+			void initialize();
+
 			virtual void writeHeader(const ProtocolHeader& header);
 			virtual void writeElement(boost::shared_ptr<Element>);
 
@@ -40,12 +43,17 @@ namespace Swift {
     private:
       void handleXMPPError();
       void handleTLSError();
+			void handleStreamStartReceived(const ProtocolHeader&);
+			void handleElementReceived(boost::shared_ptr<Element>);
 
     private:
+			boost::shared_ptr<Connection> connection;
+			PayloadParserFactoryCollection* payloadParserFactories;
+			PayloadSerializerCollection* payloadSerializers;
+			TLSLayerFactory* tlsLayerFactory;
 			boost::shared_ptr<XMPPLayer> xmppLayer;
 			boost::shared_ptr<ConnectionLayer> connectionLayer;
 			StreamStack* streamStack;
-      TLSLayerFactory* tlsLayerFactory;
       boost::shared_ptr<TLSLayer> tlsLayer;
       boost::shared_ptr<WhitespacePingLayer> whitespacePingLayer;
   };
diff --git a/Swiften/Session/SessionStream.h b/Swiften/Session/SessionStream.h
index 17d9a24..44a1980 100644
--- a/Swiften/Session/SessionStream.h
+++ b/Swiften/Session/SessionStream.h
@@ -5,10 +5,16 @@
 
 #include "Swiften/Elements/ProtocolHeader.h"
 #include "Swiften/Elements/Element.h"
+#include "Swiften/Base/Error.h"
 
 namespace Swift {
 	class SessionStream {
 		public:
+			class Error : public Swift::Error {
+				public:
+					Error() {}
+			};
+
 			virtual ~SessionStream();
 
 			virtual void writeHeader(const ProtocolHeader& header) = 0;
@@ -23,5 +29,6 @@ namespace Swift {
 
 			boost::signal<void (const ProtocolHeader&)> onStreamStartReceived;
 			boost::signal<void (boost::shared_ptr<Element>)> onElementReceived;
+			boost::signal<void (boost::shared_ptr<Error>)> onError;
 	};
 }
-- 
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