source: psi/trunk/iris/jabber/filetransfer.h@ 20

/*
 * filetransfer.h - File Transfer
 * Copyright (C) 2004  Justin Karneges
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 */

#ifndef XMPP_FILETRANSFER_H
#define XMPP_FILETRANSFER_H

#include"im.h"

#if QT_VERSION < 0x030200
typedef long int Q_LLONG;
#endif

namespace XMPP
{
        class S5BConnection;
        struct FTRequest;

        class FileTransfer : public QObject
        {
                Q_OBJECT
        public:
                enum { ErrReject, ErrNeg, ErrConnect, ErrProxy, ErrStream };
                enum { Idle, Requesting, Connecting, WaitingForAccept, Active };
                ~FileTransfer();

                void setProxy(const Jid &proxy);

                // send
                void sendFile(const Jid &to, const QString &fname, Q_LLONG size, const QString &desc);
                Q_LLONG offset() const;
                Q_LLONG length() const;
                int dataSizeNeeded() const;
                void writeFileData(const QByteArray &a);

                // receive
                Jid peer() const;
                QString fileName() const;
                Q_LLONG fileSize() const;
                QString description() const;
                bool rangeSupported() const;
                void accept(Q_LLONG offset=0, Q_LLONG length=0);

                // both
                void close(); // reject, or stop sending/receiving
                S5BConnection *s5bConnection() const; // active link

        signals:
                void accepted(); // indicates S5BConnection has started
                void connected();
                void readyRead(const QByteArray &a);
                void bytesWritten(int);
                void error(int);

        private slots:
                void ft_finished();
                void s5b_connected();
                void s5b_connectionClosed();
                void s5b_readyRead();
                void s5b_bytesWritten(int);
                void s5b_error(int);
                void doAccept();

        private:
                class Private;
                Private *d;

                void reset();

                friend class FileTransferManager;
                FileTransfer(FileTransferManager *, QObject *parent=0);
                void man_waitForAccept(const FTRequest &req);
                void takeConnection(S5BConnection *c);
        };

        class FileTransferManager : public QObject
        {
                Q_OBJECT
        public:
                FileTransferManager(Client *);
                ~FileTransferManager();

                Client *client() const;
                FileTransfer *createTransfer();
                FileTransfer *takeIncoming();

        signals:
                void incomingReady();

        private slots:
                void pft_incoming(const FTRequest &req);

        private:
                class Private;
                Private *d;

                friend class Client;
                void s5b_incomingReady(S5BConnection *);

                friend class FileTransfer;
                QString link(FileTransfer *);
                void con_accept(FileTransfer *);
                void con_reject(FileTransfer *);
                void unlink(FileTransfer *);
        };

        class JT_FT : public Task
        {
                Q_OBJECT
        public:
                JT_FT(Task *parent);
                ~JT_FT();

                void request(const Jid &to, const QString &id, const QString &fname, Q_LLONG size, const QString &desc, const QStringList &streamTypes);
                Q_LLONG rangeOffset() const;
                Q_LLONG rangeLength() const;
                QString streamType() const;

                void onGo();
                bool take(const QDomElement &);

        private:
                class Private;
                Private *d;
        };

        struct FTRequest
        {
                Jid from;
                QString iq_id, id;
                QString fname;
                Q_LLONG size;
                QString desc;
                bool rangeSupported;
                QStringList streamTypes;
        };
        class JT_PushFT : public Task
        {
                Q_OBJECT
        public:
                JT_PushFT(Task *parent);
                ~JT_PushFT();

                void respondSuccess(const Jid &to, const QString &id, Q_LLONG rangeOffset, Q_LLONG rangeLength, const QString &streamType);
                void respondError(const Jid &to, const QString &id, int code, const QString &str);

                bool take(const QDomElement &);

        signals:
                void incoming(const FTRequest &req);
        };
}

#endif