323 lines
12 KiB
C
323 lines
12 KiB
C
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#ifndef __msn_p2p_h__
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#define __msn_p2p_h__
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/*
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* p2p.h
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* libmsn
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*
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* Crated by Tiago Salem Herrmann on 08/2007.
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* Copyright (c) 2007 Tiago Salem Herrmann. All rights reserved
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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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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include "connection.h"
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#include "authdata.h"
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#include "errorcodes.h"
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#include "buddy.h"
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#include "passport.h"
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#include "util.h"
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#include <stdexcept>
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#include <vector>
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#include <fstream>
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#include <iostream>
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#include "libmsn_export.h"
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namespace MSN
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{
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class SwitchboardServerConnection;
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class FileTransferConnectionP2P;
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/** Manages all p2p communication.
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*/
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class LIBMSN_EXPORT P2P
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{
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public:
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P2P();
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virtual ~P2P();
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unsigned int rand_helper;
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enum {
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DIRECTION_SENDING = 0,
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DIRECTION_RECEIVING = 1
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};
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enum {
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STEP_INVITATION_SENT,
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STEP_ACK_INVITATION_SENT,
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STEP_200OK_SENT,
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STEP_200OK_ACK_SENT,
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STEP_603DECLINE_SENT,
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STEP_603DECLINE_ACK_SENT,
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STEP_DC_INVITE_SENT, // direct connection
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STEP_DC_INVITE_ACK_SENT, // direct connection
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STEP_DC_200OK_SENT,
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STEP_DC_200OKACK_SENT,
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STEP_DATA_PREPARATION_SENT,
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STEP_DATA_PREPARATION_ACK,
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STEP_SENDING,
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STEP_RECEIVING,
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STEP_RECEIVING_FINISHED,
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STEP_DATA_TRANSFER_ACK,
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STEP_BYE_SENT,
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STEP_BYE_ACK
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};
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typedef enum {
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APP_NONE = 0,
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APP_WEBCAM = 4,
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APP_FILE_TRANSFER = 2,
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APP_DISPLAY_PICTURE = 1,
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APP_EMOTICON = 11,
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APP_DISPLAY_PICTURE2 = 12, // MSNP15 uses 12 instead 1
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APP_VOICE_CLIP = 20, // MSNP15 uses 12 instead 1
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APP_WINK = 98, // non standard
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APP_INK = 99 // non standard
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} p2pTransferObj;
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enum {
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FLAG_NOP = 0x0,
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FLAG_ACK = 0x2,
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FLAG_ERROR = 0x8,
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FLAG_DATA_EMOTICONS = 0x20,
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FLAG_DATA_PICTURE = 0x20,
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FLAG_FILE_DATA = 0x01000030,
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FLAG_FILE_DATA2 = 0x01000020
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};
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struct p2pPacket {
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struct {
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unsigned int sessionID;
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unsigned int identifier;
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unsigned long long dataOffset;
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unsigned long long totalDataSize;
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unsigned int messageLength;
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unsigned int flag;
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unsigned int ackID;
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unsigned int ackUID;
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unsigned long long ackDataSize;
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}p2pHeader;
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std::string body;
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struct {
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unsigned int appID;
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}p2pFooter;
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p2pPacket() {
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p2pHeader.sessionID = 0;
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p2pHeader.identifier = 0;
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p2pHeader.dataOffset = 0;
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p2pHeader.totalDataSize = 0;
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p2pHeader.messageLength = 0;
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p2pHeader.flag = 0;
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p2pHeader.ackID = 0;
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p2pHeader.ackUID = 0;
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p2pHeader.ackDataSize = 0;
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p2pFooter.appID = 0;
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}
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};
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struct p2pSession {
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bool sending; // sending or receiving, if sending, so true
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unsigned long long totalDataSize;
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unsigned int step; // step at the moment
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unsigned int currentIdentifier;
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unsigned int baseIdentifier; // baseIdentifier
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unsigned int CSeq;
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unsigned int sessionID;
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unsigned int appID;
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MSN::FileTransferConnectionP2P *fileTransfer;
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std::string from;
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std::string to;
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std::string CallID;
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std::string Via;
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std::string ContentType;
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std::string Context; // can be the file preview or msnobject
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std::string filename; // filename to transfer
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std::ifstream *out_stream; // file to send
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std::ofstream *in_stream; // file to receive
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std::string ConnType;
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std::string Bridges;
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std::string NetID;
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std::string UPnPNat;
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std::string Listening;
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std::string ICF;
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std::string IPv4InternalAddrs;
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std::string IPv4InternalPort;
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std::string IPv4ExternalAddrs;
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std::string IPv4ExternalPort;
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p2pTransferObj typeTransfer;
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std::string emoticonAlias;
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p2pPacket tempPacket; // this is used for general purposes
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std::string ink;
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p2pSession() {
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sending = false;
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totalDataSize = 0;
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step = 0;
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currentIdentifier = 0;
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baseIdentifier = 0;
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CSeq = 0;
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sessionID = 0;
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appID = 0;
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fileTransfer = 0;
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out_stream = 0;
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in_stream = 0;
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typeTransfer = APP_NONE;
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}
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};
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typedef void (P2P::*P2PCallbacks)(MSN::SwitchboardServerConnection &conn,
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unsigned int sessionID,
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p2pPacket &packet);
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std::map<unsigned int, std::pair<P2PCallbacks, unsigned int> > callbacks;
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virtual void addCallback(P2PCallbacks, unsigned int sessionID,
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unsigned int ackID);
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virtual void removeCallback(unsigned int ackID);
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std::map<unsigned int, p2pPacket> pendingP2PMsg;
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std::map<unsigned int, p2pSession> startedSessions;
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void sendFile(MSN::SwitchboardServerConnection &conn,
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MSN::fileTransferInvite ft);
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void handleP2Pmessage(MSN::SwitchboardServerConnection &conn,
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std::vector<std::string> & args,
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std::string mime, std::string body);
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void sendACK(MSN::SwitchboardServerConnection &conn,
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p2pPacket &packet,
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p2pSession &session);
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void sendP2PPacket(MSN::SwitchboardServerConnection &conn,
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p2pPacket &packet,
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p2pSession &session);
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void sendP2PData(MSN::SwitchboardServerConnection &conn,
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p2pSession &session,
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p2pPacket &packet);
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void receiveP2PData(MSN::SwitchboardServerConnection &conn,
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p2pPacket &packet);
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void handle_negotiation(MSN::SwitchboardServerConnection &conn,
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p2pPacket &packet);
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void handle_INVITE(MSN::SwitchboardServerConnection &conn,
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p2pPacket &packet);
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void handle_603Decline(MSN::SwitchboardServerConnection &conn,
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p2pPacket &packet);
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void handle_INVITE_ACK(MSN::SwitchboardServerConnection &conn,
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unsigned int sessionID,
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p2pPacket &packet);
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void handle_200OK(MSN::SwitchboardServerConnection &conn,
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p2pPacket &packet);
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void handle_BYE(MSN::SwitchboardServerConnection &conn,
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p2pPacket &packet);
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void send_200OK(MSN::SwitchboardServerConnection &conn,
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p2pSession &session,
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std::string body);
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void send_BYE(MSN::SwitchboardServerConnection &conn,
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p2pPacket &packet,
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p2pSession &session);
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void send_603Decline(MSN::SwitchboardServerConnection &conn,
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p2pSession &session);
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void handle_p2pACK(MSN::SwitchboardServerConnection &conn,
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p2pPacket &packet);
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void handle_200OKACK(MSN::SwitchboardServerConnection &conn,
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unsigned int sessionID,
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p2pPacket &packet);
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void handle_603DeclineACK(MSN::SwitchboardServerConnection &conn,
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unsigned int sessionID,
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p2pPacket &packet);
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void handle_DataPreparationACK(MSN::SwitchboardServerConnection &conn,
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unsigned int sessionID,
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p2pPacket &packet);
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void handle_DataACK(MSN::SwitchboardServerConnection &conn,
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unsigned int sessionID,
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p2pPacket &packet);
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void handle_BYEACK(MSN::SwitchboardServerConnection &conn,
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unsigned int sessionID,
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p2pPacket &packet);
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void handle_MSGACKReceived(MSN::SwitchboardServerConnection &conn,
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unsigned int sessionID,
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std::string fromPassport);
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void handle_fileTransferResponse(MSN::SwitchboardServerConnection &conn,
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unsigned int sessionID,
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std::string filename,
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bool response);
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void handle_session_changes(MSN::SwitchboardServerConnection &conn,
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p2pPacket &packet,
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p2pSession &session);
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void requestFile(MSN::SwitchboardServerConnection &conn,
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unsigned int sessionID,
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std::string filename,
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std::string msnobject,
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p2pTransferObj obj);
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void requestDisplayPicture(MSN::SwitchboardServerConnection &conn,
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unsigned int sessionID,
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std::string filename,
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std::string msnobject);
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void sendInk(MSN::SwitchboardServerConnection &conn,
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std::string image);
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void cancelTransfer(MSN::SwitchboardServerConnection &conn,
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unsigned int sessionID);
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void requestEmoticon(MSN::SwitchboardServerConnection &conn,
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unsigned int sessionID,
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std::string filename,
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std::string msnobject,
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std::string alias);
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void requestVoiceClip(MSN::SwitchboardServerConnection &conn,
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unsigned int sessionID,
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std::string filename,
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std::string msnobject);
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void requestWink(MSN::SwitchboardServerConnection &conn,
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unsigned int sessionID,
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std::string filename,
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std::string msnobject);
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void requestInk(MSN::SwitchboardServerConnection &conn,
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unsigned int sessionID,
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std::string filename,
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std::string msnobject);
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};
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}
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#endif
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