kopete/protocols/oscar/liboscar/oftmetatransfer.h

   1 // oftmetatransfer.h
   2
   3 // Copyright (C)  2006
   4
   5 // This library is free software; you can redistribute it and/or
   6 // modify it under the terms of the GNU Lesser General Public
   7 // License as published by the Free Software Foundation; either
   8 // version 2.1 of the License, or (at your option) any later version.
   9
  10 // This library is distributed in the hope that it will be useful,
  11 // but WITHOUT ANY WARRANTY; without fdeven the implied warranty of
  12 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13 // Lesser General Public License for more details.
  14
  15 // You should have received a copy of the GNU Lesser General Public
  16 // License along with this library; if not, write to the Free Software
  17 // Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  18 // 02110-1301  USA
  19
  20 #ifndef OFTMETATRANSFER_H
  21 #define OFTMETATRANSFER_H
  22
  23 #include <QtCore/QFile>
  24 #include <QtCore/QTimer>
  25 #include <QtNetwork/QAbstractSocket>
  26
  27 #include "oscartypes.h"
  28
  29 class QTcpSocket;
  30
  31 class OftMetaTransfer : public QObject
  32 {
  33 Q_OBJECT
  34 public:
  35         /** Receive constructor */
  36         OftMetaTransfer( const QByteArray& cookie, const QString& dir, QTcpSocket *socket );
  37
  38         /** Send constructor */
  39         OftMetaTransfer( const QByteArray& cookie, const QStringList& files, QTcpSocket *socket );
  40
  41         ~OftMetaTransfer();
  42
  43         void start(); //start sending file
  44
  45 public slots:
  46         void doCancel(); //one of the users is cancelling us
  47
  48 signals:
  49         void fileIncoming( const QString& fileName, unsigned int fileSize );
  50         void fileReceived( const QString& fileName, unsigned int bytesSent );
  51
  52         void fileOutgoing( const QString& fileName, unsigned int fileSize );
  53         void fileSent( const QString& fileName, unsigned int fileSize );
  54
  55         void fileProcessed( unsigned int bytesSent, unsigned int fileSize );
  56
  57         void transferCompleted();
  58         void transferError( int errorCode, const QString &error );
  59
  60 private slots:
  61         //bool validFile();
  62         void socketError( QAbstractSocket::SocketError );
  63         void socketRead();
  64         void write();
  65         void timeout();
  66
  67 private:
  68         void initOft();
  69         void handelReceiveSetup( const Oscar::OFT &oft );
  70         void handelReceiveResumeSetup( const Oscar::OFT &oft );
  71
  72         void handelSendSetup( const Oscar::OFT &oft );
  73         void handelSendResumeSetup( const Oscar::OFT &oft );
  74         void handleSendResumeRequest( const Oscar::OFT &oft );
  75         void handelSendDone( const Oscar::OFT &oft );
  76
  77         void sendOft();
  78         void prompt();
  79         void ack();
  80         void done();
  81         void resume(); //receiver wants to resume partial file
  82         void rAgree(); //sender agrees to resume
  83         void rAck(); //resume ack
  84         void saveData(); //save incoming data to disk
  85         void readOft(); //handle incoming oft packet
  86         Oscar::DWORD checksum( int max = -1 ); //return checksum of our file, up to max bytes
  87                                         //XXX this does put an arbitrary limit on file size
  88
  89         Oscar::OFT m_oft;
  90
  91         QFile m_file;
  92
  93         QString m_dir; //directory where we save files
  94         QStringList m_files; //list of files that we want to send
  95
  96         QTcpSocket *m_socket; //where we actually send file data
  97         QTimer m_timer; //if we're idle too long, then give up
  98         enum State { SetupReceive, SetupSend, Receiving, Sending, Done };
  99         State m_state;
 100 };
 101
 102 #endif