1 files changed, 432 insertions, 0 deletions
diff --git a/kopete/protocols/msn/outgoingtransfer.cpp b/kopete/protocols/msn/outgoingtransfer.cpp
new file mode 100644
index 00000000..4879cf52
--- /dev/null
+++ b/kopete/protocols/msn/outgoingtransfer.cpp
@@ -0,0 +1,432 @@
+/*
+    outgoingtransfer.cpp - msn p2p protocol
+
+    Copyright (c) 2003-2005 by Olivier Goffart        <ogoffart@ kde.org>
+    Copyright (c) 2005      by Gregg Edghill          <[email protected]>
+
+    *************************************************************************
+    *                                                                       *
+    * This program is free software; you can redistribute it and/or modify  *
+    * it under the terms of the GNU General Public License as published by  *
+    * the Free Software Foundation; either version 2 of the License, or     *
+    * (at your option) any later version.                                   *
+    *                                                                       *
+    *************************************************************************
+*/
+
+#include "outgoingtransfer.h"
+
+#include <stdlib.h>
+
+// Kde includes
+#include <kbufferedsocket.h>
+#include <kdebug.h>
+#include <klocale.h>
+#include <kmdcodec.h>
+using namespace KNetwork;
+
+// Qt includes
+#include <qfile.h>
+#include <qregexp.h>
+#include <qtimer.h>
+
+// Kopete includes
+#include <kopetetransfermanager.h>
+
+#include <netinet/in.h> // For htonl
+using P2P::TransferContext;
+using P2P::Dispatcher;
+using P2P::OutgoingTransfer;
+using P2P::Message;
+
+OutgoingTransfer::OutgoingTransfer(const QString& to, P2P::Dispatcher *dispatcher, Q_UINT32 sessionId)
+: TransferContext(to,dispatcher,sessionId)
+{
+	m_direction = Outgoing;
+	m_handshake = 0x01;
+}
+
+OutgoingTransfer::~OutgoingTransfer()
+{
+	kdDebug(14140) << k_funcinfo << endl;
+}
+
+void OutgoingTransfer::sendImage(const QByteArray& image)
+{
+
+// 	TODO QByteArray base64 = KCodecs::base64Encode(image);
+//
+// 	QCString body = "MIME-Version: 1.0\r\n"
+// 		"Content-Type: image/gif\r\n"
+// 		"\r\n"
+// 		"base64:" +
+//
+// 	Message outbound;
+// 	outbound.header.sessionId  = m_sessionId;
+// 	outbound.header.identifier = m_baseIdentifier;
+// 	outbound.header.dataOffset = 0;
+// 	outbound.header.totalDataSize = 4;
+// 	outbound.header.dataSize = 4;
+// 	outbound.header.flag = 0;
+// 	outbound.header.ackSessionIdentifier = rand()%0x8FFFFFF0 + 4;
+// 	outbound.header.ackUniqueIdentifier  = 0;
+// 	outbound.header.ackDataSize   = 0l;
+// 	QByteArray bytes(4);
+// 	bytes.fill('\0');
+// 	outbound.body = bytes;
+// 	outbound.applicationIdentifier = 0;
+// 	outbound.attachApplicationId = false;
+// 	outbound.destination = m_recipient;
+//
+// 	sendMessage(outbound, body);
+}
+
+void OutgoingTransfer::slotSendData()
+{
+	Q_INT32 bytesRead = 0;
+	QByteArray buffer(1202);
+	if(!m_file)
+		return;
+
+	// Read a chunk from the source file.
+	bytesRead = m_file->readBlock(buffer.data(), buffer.size());
+	
+	if (bytesRead < 0) {
+		m_file->close();
+                // ### error handling
+        }
+	else {
+
+		if(bytesRead < 1202){
+			buffer.resize(bytesRead);
+		}
+
+		kdDebug(14140) << k_funcinfo << QString("Sending, %1 bytes").arg(bytesRead) << endl;
+
+		if((m_offset + bytesRead) < m_file->size())
+		{
+			sendData(buffer);
+			m_offset += bytesRead;
+		}
+		else
+		{
+			m_isComplete = true;
+			// Send the last chunk of the file.
+			sendData(buffer);
+			m_offset += buffer.size();
+			// Close the file.
+			m_file->close();
+		}
+	}
+
+	if(m_transfer){
+		m_transfer->slotProcessed(m_offset);
+		if(m_isComplete){
+			// The transfer is complete.
+			m_transfer->slotComplete();
+		}
+	}
+}
+
+void OutgoingTransfer::acknowledged()
+{
+	kdDebug(14140) << k_funcinfo << endl;
+
+	switch(m_state)
+	{
+		case Invitation:
+		{
+			if(m_type == UserDisplayIcon)
+			{
+				m_state = Negotiation;
+				// Send data preparation message.
+				sendDataPreparation();
+			}
+			break;
+		}
+
+		case Negotiation:
+		{
+			if(m_type == UserDisplayIcon)
+			{
+				// <<< Data preparation acknowledge message.
+				m_state = DataTransfer;
+				m_identifier++;
+				// Start sending data.
+				slotSendData();
+			}
+			break;
+		}
+
+		case DataTransfer:
+			// NOTE <<< Data acknowledged message.
+			// <<< Bye message should follow.
+			if(m_type == File)
+			{
+				if(m_handshake == 0x01)
+				{
+					// Data handshake acknowledge message.
+					// Start sending data.
+					slotSendData();
+				}
+				else if(m_handshake == 0x02)
+				{
+					// Data acknowledge message.
+					// Send the recipient a BYE message.
+					m_state = Finished;
+					sendMessage(BYE, "\r\n");
+				}
+			}
+
+			break;
+
+		case Finished:
+			if(m_type == File)
+			{
+				// BYE acknowledge message.
+				m_dispatcher->detach(this);
+			}
+
+			break;
+	}
+}
+
+void OutgoingTransfer::processMessage(const Message& message)
+{
+	QString body =
+		QCString(message.body.data(), message.header.dataSize);
+	kdDebug(14140) << k_funcinfo << "received, " << body << endl;
+
+	if(body.startsWith("BYE"))
+	{
+		m_state = Finished;
+		// Send the recipient an acknowledge message.
+		acknowledge(message);
+		if(!m_isComplete)
+		{
+			// The peer cancelled the transfer.
+			if(m_transfer)
+			{
+				// Inform the user of the file transfer cancelation.
+				m_transfer->slotError(KIO::ERR_ABORTED, i18n("File transfer canceled."));
+			}
+		}
+		// Dispose of this transfer context.
+		m_dispatcher->detach(this);
+	}
+	else if(body.startsWith("MSNSLP/1.0 200 OK"))
+	{
+		// Retrieve the message content type.
+		QRegExp regex("Content-Type: ([A-Za-z0-9$!*/\\-]*)");
+		regex.search(body);
+		QString contentType = regex.cap(1);
+
+		if(contentType == "application/x-msnmsgr-sessionreqbody")
+		{
+			// Recipient has accepted the file transfer.
+			// Acknowledge the recipient.
+			acknowledge(message);
+
+			// Try to open the file for reading.
+			// If an error occurs, send an internal
+			// error message to the recipient.
+			if(!m_file->open(IO_ReadOnly)){
+				error();
+				return;
+			}
+
+			// Retrieve the receiving client's contact.
+			Kopete::Contact *contact = m_dispatcher->getContactByAccountId(m_recipient);
+			if(contact == 0l)
+			{
+				error();
+				return;
+			}
+
+			m_transfer =
+				Kopete::TransferManager::transferManager()->addTransfer(contact, m_file->name(), m_file->size(), m_recipient, Kopete::FileTransferInfo::Outgoing);
+
+			QObject::connect(m_transfer , SIGNAL(transferCanceled()), this, SLOT(abort()));
+
+			m_state = Negotiation;
+
+			m_branch = P2P::Uid::createUid();
+
+			// Send the direct connection invitation message.
+			QString content = "Bridges: TRUDPv1 TCPv1\r\n" +
+				QString("NetID: %1\r\n").arg("-123657987") +
+				QString("Conn-Type: %1\r\n").arg("Restrict-NAT") +
+				"UPnPNat: false\r\n"
+				"ICF: false\r\n" +
+				QString("Hashed-Nonce: {%1}\r\n").arg(P2P::Uid::createUid()) +
+				"\r\n";
+			sendMessage(INVITE, content);
+		}
+		else if(contentType == "application/x-msnmsgr-transrespbody")
+		{
+			// Determine whether the recipient created
+			// a listening endpoint.
+			regex = QRegExp("Listening: ([^\r\n]+)\r\n");
+			regex.search(body);
+			bool isListening = (regex.cap(1) == "true");
+
+			// Send the recipient an acknowledge message.
+			acknowledge(message);
+
+			m_state = DataTransfer;
+
+#if 1
+			isListening = false; // TODO complete direct connection.
+#endif
+			if(isListening)
+			{
+				// Retrieve the hashed nonce for this direct connection instance.
+				regex = QRegExp("Hashed-Nonce: \\{([0-9A-F\\-]*)\\}\r\n");
+				regex.search(body);
+				m_nonce = regex.cap(1);
+				// Retrieve the listening endpoints of the receiving client.
+				regex = QRegExp("IPv4Internal-Addrs: ([^\r\n]+)\r\n");
+				regex.search(body);
+				m_peerEndpoints = QStringList::split(" ", regex.cap(1));
+				m_endpointIterator = m_peerEndpoints.begin();
+				// Retrieve the listening port of the receiving client.
+				regex = QRegExp("IPv4Internal-Port: ([^\r\n]+)\r\n");
+				regex.search(body);
+				m_remotePort = regex.cap(1);
+
+				// Try to connect to the receiving client's
+				// listening endpoint.
+				connectToEndpoint(*m_endpointIterator);
+			}
+			else
+			{
+				m_handshake = 0x02;
+				// Otherwise, send data through the already
+				// existing session.
+				slotSendData();
+			}
+		}
+	}
+	else if(body.startsWith("MSNSLP/1.0 603 Decline"))
+	{
+		// File transfer has been cancelled remotely.
+		// Send an acknowledge message
+		acknowledge(message);
+		if(m_transfer)
+		{
+			// Inform the user of the file transfer cancelation.
+			m_transfer->slotError(KIO::ERR_ABORTED, i18n("File transfer canceled."));
+		}
+
+		if(m_file && m_file->isOpen()){
+			// Close the file.
+			m_file->close();
+		}
+		m_dispatcher->detach(this);
+	}
+}
+
+void OutgoingTransfer::readyToSend()
+{
+	if(m_isComplete){
+		// Ignore, do nothing.
+		return;
+	}
+
+	slotSendData();
+}
+
+void OutgoingTransfer::connectToEndpoint(const QString& hostName)
+{
+	m_socket = new KBufferedSocket(hostName, m_remotePort);
+	m_socket->setBlocking(false);
+	m_socket->enableRead(true);
+	// Disable write signal for now.  Only enable
+	// when we are ready to sent data.
+	// NOTE readyWrite consumes too much cpu usage.
+	m_socket->enableWrite(false);
+	QObject::connect(m_socket, SIGNAL(readyRead()), this, SLOT(slotRead()));
+	QObject::connect(m_socket, SIGNAL(connected(const KResolverEntry&)), this, SLOT(slotConnected()));
+	QObject::connect(m_socket, SIGNAL(gotError(int)), this, SLOT(slotSocketError(int)));
+	QObject::connect(m_socket, SIGNAL(closed()), this, SLOT(slotSocketClosed()));
+	// Try to connect to the endpoint.
+	m_socket->connect();
+}
+
+void OutgoingTransfer::slotConnected()
+{
+	kdDebug(14140) << k_funcinfo << endl;
+	// Check if connection is ok.
+	Q_UINT32 bytesWritten = m_socket->writeBlock(QCString("foo").data(), 4);
+	if(bytesWritten != 4)
+	{
+		// Not all data was written, close the socket.
+		m_socket->closeNow();
+		// Schedule the data to be sent through the existing session.
+		QTimer::singleShot(2000, this, SLOT(slotSendData()));
+		return;
+	}
+
+	// Send data handshake message.
+	P2P::Message handshake;
+	handshake.header.sessionId  = 0;
+	handshake.header.identifier = ++m_identifier;
+	handshake.header.dataOffset = 0l;
+	handshake.header.totalDataSize = 0l;
+	handshake.header.dataSize = 0;
+	// Set the flag to indicate that this is
+	// a direct connection handshake message.
+	handshake.header.flag = 0x100;
+	QString nonce = m_nonce.remove('-');
+	handshake.header.ackSessionIdentifier = nonce.mid(0, 8).toUInt(0, 16);
+	handshake.header.ackUniqueIdentifier  =
+		nonce.mid(8, 4).toUInt(0, 16) | (nonce.mid(12, 4).toUInt(0, 16) << 16);
+	const Q_UINT32 lo = nonce.mid(16, 8).toUInt(0, 16);
+	const Q_UINT32 hi = nonce.mid(24, 8).toUInt(0, 16);
+	handshake.header.ackDataSize =
+		((Q_INT64)htonl(lo)) | (((Q_INT64)htonl(hi)) << 32);
+
+	QByteArray stream;
+	// Write the message to the memory stream.
+	m_messageFormatter.writeMessage(handshake, stream, true);
+	// Send the byte stream over the wire.
+	m_socket->writeBlock(stream.data(), stream.size());
+}
+
+void OutgoingTransfer::slotRead()
+{
+	Q_INT32 bytesAvailable = m_socket->bytesAvailable();
+	kdDebug(14140) << k_funcinfo << bytesAvailable << ", bytes available." << endl;
+}
+
+void OutgoingTransfer::slotSocketError(int)
+{
+	kdDebug(14140) << k_funcinfo << m_socket->errorString() << endl;
+	// If an error has occurred, try to connect
+	// to another available peer endpoint.
+	// If there are no more available endpoints,
+	// send the data through the session.
+	m_socket->closeNow();
+
+	// Move to the next available endpoint.
+	m_endpointIterator++;
+	if(m_endpointIterator != m_peerEndpoints.end()){
+		// Try to connect to the endpoint.
+		connectToEndpoint(*m_endpointIterator);
+	}
+	else
+	{
+		// Otherwise, send the data through the session.
+		m_identifier -= 1;
+		QTimer::singleShot(2000, this, SLOT(slotSendData()));
+	}
+}
+
+void OutgoingTransfer::slotSocketClosed()
+{
+	kdDebug(14140) << k_funcinfo << endl;
+	m_socket->deleteLater();
+	m_socket = 0l;
+}
+
+#include "outgoingtransfer.moc"