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413 lines
10 KiB
413 lines
10 KiB
/*
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p2p.cpp - msn p2p protocol
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Copyright (c) 2003-2005 by Olivier Goffart <ogoffart@ kde.org>
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Copyright (c) 2005 by Gregg Edghill <gregg.edghill@gmail.com>
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*************************************************************************
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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*************************************************************************
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*/
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#include "p2p.h"
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#include "dispatcher.h"
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using P2P::TransferContext;
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using P2P::Message;
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using P2P::MessageType;
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using P2P::TransferType;
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#include <stdlib.h>
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// Kde includes
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#include <kbufferedsocket.h>
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#include <kdebug.h>
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// Qt includes
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#include <tqfile.h>
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// Kopete includes
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#include <kopetetransfermanager.h>
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TQString P2P::Uid::createUid()
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{
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return (TQString::number((unsigned long int)rand()%0xAAFF+0x1111, 16)
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+ TQString::number((unsigned long int)rand()%0xAAFF+0x1111, 16) + "-"
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+ TQString::number((unsigned long int)rand()%0xAAFF+0x1111, 16) + "-"
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+ TQString::number((unsigned long int)rand()%0xAAFF+0x1111, 16) + "-"
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+ TQString::number(rand()%0xAAFF+0x1111, 16) + "-"
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+ TQString::number((unsigned long int)rand()%0xAAFF+0x1111, 16)
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+ TQString::number((unsigned long int)rand()%0xAAFF+0x1111, 16)
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+ TQString::number((unsigned long int)rand()%0xAAFF+0x1111, 16)).upper();
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}
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TransferContext::TransferContext(const TQString &contact, P2P::Dispatcher *dispatcher, Q_UINT32 sessionId)
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: TQObject(dispatcher) ,
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m_sessionId(sessionId) ,
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m_identifier(0) ,
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m_file(0) ,
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m_transactionId (0),
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m_ackSessionIdentifier (0) ,
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m_ackUniqueIdentifier ( 0 ),
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m_transfer ( 0l) ,
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m_baseIdentifier(rand()%0x0FFFFFF0 + 4),
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m_dispatcher (dispatcher),
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m_isComplete (false) ,
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m_offset(0),
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m_totalDataSize(0),
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m_recipient(contact),
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m_sender(dispatcher->localContact()),
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m_socket(0),
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m_state ( Invitation)
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{
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m_type = File ; //uh, why??? -Olivier
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}
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TransferContext::~TransferContext()
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{
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m_transfer = 0l;
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if(m_file){
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delete m_file;
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m_file = 0l;
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}
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}
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void TransferContext::acknowledge(const Message& message)
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{
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kdDebug(14140) << k_funcinfo << m_dispatcher<< endl;
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Message outbound;
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outbound.header.sessionId = message.header.sessionId;
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if(m_identifier == 0){
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m_identifier = m_baseIdentifier;
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}
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// else if(m_state == Finished && m_direction == Incoming){
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// m_identifier = m_baseIdentifier - 1;
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// }
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else if(m_state == Finished && m_direction == Outgoing){
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m_identifier = m_baseIdentifier + 1;
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}
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else
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++m_identifier;
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outbound.header.identifier = m_identifier;
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outbound.header.dataOffset = 0l;
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outbound.header.totalDataSize = message.header.totalDataSize;
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outbound.header.dataSize = 0;
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// if(m_type == UserDisplayIcon && m_state == Finished){
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// if(m_direction == Outgoing){
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// outbound.header.flag = 0x40;
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// }
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// }
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// else
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outbound.header.flag = 2;
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outbound.header.ackSessionIdentifier = message.header.identifier;
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outbound.header.ackUniqueIdentifier = message.header.ackSessionIdentifier;
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outbound.header.ackDataSize = message.header.totalDataSize;
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// NOTE outbound.body is null by default
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outbound.applicationIdentifier = 0l;
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outbound.destination = m_recipient;
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TQByteArray stream;
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// Write the acknowledge message to the stream.
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m_messageFormatter.writeMessage(outbound, stream, (m_socket != 0l));
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if(!m_socket)
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{
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// Send the acknowledge message.
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m_dispatcher->callbackChannel()->send(stream);
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}
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else
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{
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// Send acknowledge message directly.
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m_socket->writeBlock(stream.data(), stream.size());
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}
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}
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void TransferContext::error()
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{
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kdDebug(14140) << k_funcinfo << endl;
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sendMessage(ERROR);
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m_dispatcher->detach(this);
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}
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void TransferContext::sendData(const TQByteArray& bytes)
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{
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Message outbound;
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outbound.header.sessionId = m_sessionId;
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outbound.header.identifier = m_identifier;
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outbound.header.dataOffset = m_offset;
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if(m_file){
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outbound.header.totalDataSize = m_file->size();
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}
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else
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outbound.header.totalDataSize = m_totalDataSize;
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outbound.header.dataSize = bytes.size();
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if(m_type == UserDisplayIcon){
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outbound.header.flag = 0x20;
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}
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else if(m_type == P2P::File){
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outbound.header.flag = 0x01000030;
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}
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else outbound.header.flag = 0;
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outbound.header.ackSessionIdentifier = rand()%0x8FFFFFF0 + 4;
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outbound.header.ackUniqueIdentifier = 0;
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outbound.header.ackDataSize = 0l;
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outbound.body = bytes;
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outbound.applicationIdentifier = (uint)m_type;
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outbound.destination = m_recipient;
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TQByteArray stream;
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m_messageFormatter.writeMessage(outbound, stream, (m_socket != 0l));
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if(!m_socket)
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{
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// Send the data message.
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m_transactionId = m_dispatcher->callbackChannel()->send(stream);
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}
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else
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{
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// Send data directly.
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m_socket->writeBlock(stream.data(), stream.size());
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}
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}
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void TransferContext::sendDataPreparation()
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{
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kdDebug(14140) << k_funcinfo << endl;
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Message outbound;
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outbound.header.sessionId = m_sessionId;
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outbound.header.identifier = ++m_identifier;
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outbound.header.dataOffset = 0;
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outbound.header.totalDataSize = 4;
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outbound.header.dataSize = 4;
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outbound.header.flag = 0;
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outbound.header.ackSessionIdentifier = rand()%0x8FFFFFF0 + 4;
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outbound.header.ackUniqueIdentifier = 0;
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outbound.header.ackDataSize = 0l;
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TQByteArray bytes(4);
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bytes.fill('\0');
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outbound.body = bytes;
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outbound.applicationIdentifier = 1;
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outbound.destination = m_recipient;
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TQByteArray stream;
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m_messageFormatter.writeMessage(outbound, stream);
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// Send the receiving client the data prepartion message.
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m_dispatcher->callbackChannel()->send(stream);
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}
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void TransferContext::sendMessage(MessageType type, const TQString& content, Q_INT32 flag, Q_INT32 appId)
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{
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Message outbound;
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if(appId != 0){
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outbound.header.sessionId = m_sessionId;
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}
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else
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outbound.header.sessionId = 0;
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if(m_identifier == 0){
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m_identifier = m_baseIdentifier;
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}
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else if(m_state == Invitation && m_direction == P2P::Outgoing && m_type == UserDisplayIcon)
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{
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m_identifier -= 3;
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}
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else if(m_state == Invitation && m_direction == P2P::Incoming && m_type == File)
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{
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m_identifier -= 3;
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}
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else
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++m_identifier;
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outbound.header.identifier = m_identifier;
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outbound.header.flag = flag;
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outbound.header.ackSessionIdentifier = m_ackSessionIdentifier;
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outbound.header.ackUniqueIdentifier = m_ackUniqueIdentifier;
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outbound.header.ackDataSize = 0l;
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outbound.applicationIdentifier = appId;
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outbound.destination = m_recipient;
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TQString contentType, cSeq, method;
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switch(m_state)
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{
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case DataTransfer:
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contentType = "application/x-msnmsgr-transreqbody";
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if(m_type == File && m_direction == Incoming)
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{
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contentType = "application/x-msnmsgr-transrespbody";
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}
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break;
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case Finished:
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contentType = "application/x-msnmsgr-sessionclosebody";
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break;
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default:
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contentType = "application/x-msnmsgr-sessionreqbody";
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if(m_type == File && m_direction == Outgoing)
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{
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if(m_state == Negotiation){
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contentType = "application/x-msnmsgr-transreqbody";
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}
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}
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if(m_type == P2P::WebcamType && type==P2P::INVITE && m_state == Negotiation)
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{
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contentType = "application/x-msnmsgr-transreqbody";
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}
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break;
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}
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switch(type)
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{
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case BYE:
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method = "BYE MSNMSGR:" + m_recipient + " MSNSLP/1.0";
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cSeq = "0";
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break;
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case DECLINE:
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method = "MSNSLP/1.0 603 DECLINE";
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cSeq = "1";
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break;
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case ERROR:
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contentType = "null";
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method = "MSNSLP/1.0 500 Internal Error";
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cSeq = "1";
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break;
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case INVITE:
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method = "INVITE MSNMSGR:" + m_recipient + " MSNSLP/1.0";
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cSeq = "0";
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break;
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case OK:
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method = "MSNSLP/1.0 200 OK";
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cSeq = "1";
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break;
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}
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TQCString body = TQString(method + "\r\n"
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"To: <msnmsgr:" + m_recipient + ">\r\n"
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"From: <msnmsgr:" + m_sender + ">\r\n"
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"Via: MSNSLP/1.0/TLP ;branch={" + m_branch.upper() + "}\r\n"
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"CSeq: "+ cSeq +"\r\n"
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"Call-ID: {" + m_callId.upper() + "}\r\n"
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"Max-Forwards: 0\r\n"
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"Content-Type: " + contentType + "\r\n"
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"Content-Length: "+ TQString::number(content.length() + 1) + "\r\n"
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"\r\n" +
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content).utf8();
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// NOTE The body must have a null character at the end.
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// TQCString by chance automatically adds a \0 to the
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// end of the string.
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outbound.header.totalDataSize = body.size();
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// Send the outbound message.
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sendMessage(outbound, body);
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}
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void TransferContext::sendMessage(Message& outbound, const TQByteArray& body)
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{
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Q_INT64 offset = 0L, bytesLeft = outbound.header.totalDataSize;
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Q_INT16 chunkLength = 1202;
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// Split the outbound message if necessary.
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while(bytesLeft > 0L)
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{
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if(bytesLeft < chunkLength)
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{
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// Copy the last chunk of the multipart message.
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outbound.body.duplicate(body.data() + offset, bytesLeft);
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outbound.header.dataSize = bytesLeft;
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outbound.header.dataOffset = offset;
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bytesLeft = 0L;
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}
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else
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{
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// Copy the next chunk of the multipart message in the sequence.
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outbound.body.duplicate(body.data() + offset, chunkLength);
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outbound.header.dataSize = chunkLength;
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outbound.header.dataOffset = offset;
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offset += chunkLength;
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bytesLeft -= offset;
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}
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kdDebug(14140) << k_funcinfo <<
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TQCString(outbound.body.data(), outbound.body.size())
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<< endl;
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TQByteArray stream;
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// Write the outbound message to the stream.
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m_messageFormatter.writeMessage(outbound, stream, (m_socket != 0l));
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if(!m_socket)
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{
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// Send the outbound message.
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m_dispatcher->callbackChannel()->send(stream);
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}
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else
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{
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// Send outbound message directly.
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m_socket->writeBlock(stream.data(), stream.size());
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}
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}
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}
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void TransferContext::setType(TransferType type)
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{
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m_type = type;
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}
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void TransferContext::abort()
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{
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kdDebug(14140) << k_funcinfo << endl;
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if(m_transfer)
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{
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if(m_transfer->error() == KIO::ERR_ABORTED)
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{
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switch(m_direction)
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{
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case P2P::Outgoing:
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if(m_type == File)
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{
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// Do nothing.
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}
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break;
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case P2P::Incoming:
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if(m_type == File)
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{
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// Do nothing.
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}
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break;
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}
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}
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else
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{
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m_state = Finished;
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sendMessage(BYE, "\r\n");
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}
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}
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}
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void TransferContext::readyWrite()
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{
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if(m_direction == Outgoing && m_state == DataTransfer){
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readyToSend();
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}
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}
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void TransferContext::readyToSend()
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{}
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#include "p2p.moc"
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