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 <QtNetwork/QAbstractSocket>
  25
  26 #include "oscartypes.h"
  27
  28 class QTcpSocket;
  29
  30 class OftMetaTransfer : public QObject
  31 {
  32 Q_OBJECT
  33 public:
  34         /** Receive constructor */
  35         OftMetaTransfer( const QByteArray& cookie, const QString& dir, QTcpSocket *socket );
  36
  37         /** Send constructor */
  38         OftMetaTransfer( const QByteArray& cookie, const QStringList& files, QTcpSocket *socket );
  39
  40         ~OftMetaTransfer();
  41
  42         void start(); //start sending file
  43
  44 public slots:
  45         void doCancel(); //one of the users is cancelling us
  46
  47 signals:
  48         void fileIncoming( const QString& fileName, unsigned int fileSize );
  49         void fileReceived( const QString& fileName, unsigned int bytesSent );
  50
  51         void fileOutgoing( const QString& fileName, unsigned int fileSize );
  52         void fileSent( const QString& fileName, unsigned int fileSize );
  53
  54         void fileProcessed( unsigned int bytesSent, unsigned int fileSize );
  55
  56         void transferCompleted();
  57         void transferError( int errorCode, const QString &error );
  58
  59 private slots:
  60         //bool validFile();
  61         void socketError( QAbstractSocket::SocketError );
  62         void socketRead();
  63         void write();
  64         void emitTransferCompleted();
  65
  66 private:
  67         void initOft();
  68         void handelReceiveSetup( const Oscar::OFT &oft );
  69         void handelReceiveResumeSetup( const Oscar::OFT &oft );
  70
  71         void handelSendSetup( const Oscar::OFT &oft );
  72         void handelSendResumeSetup( const Oscar::OFT &oft );
  73         void handleSendResumeRequest( const Oscar::OFT &oft );
  74         void handelSendDone( const Oscar::OFT &oft );
  75
  76         void sendOft();
  77         void prompt();
  78         void ack();
  79         void done();
  80         void resume(); //receiver wants to resume partial file
  81         void rAgree(); //sender agrees to resume
  82         void rAck(); //resume ack
  83         void saveData(); //save incoming data to disk
  84         void readOft(); //handle incoming oft packet
  85         Oscar::DWORD checksum( int max = -1 ); //return checksum of our file, up to max bytes
  86                                         //XXX this does put an arbitrary limit on file size
  87
  88         Oscar::OFT m_oft;
  89
  90         QFile m_file;
  91
  92         QString m_dir; //directory where we save files
  93         QStringList m_files; //list of files that we want to send
  94
  95         QTcpSocket *m_socket; //where we actually send file data
  96         enum State { SetupReceive, SetupSend, Receiving, Sending, Done };
  97         State m_state;
  98 };
  99
 100 #endif