kde-extraapps/kget/transfer-plugins/checksumsearch/checksumsearchtransferdatasource.h
2014-11-19 17:18:01 +00:00

89 lines
3.6 KiB
C++

/***************************************************************************
* Copyright (C) 2009 Matthias Fuchs <mat69@gmx.net> *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
* This program 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 General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the *
* Free Software Foundation, Inc., *
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA . *
***************************************************************************/
#ifndef CHECKSUMSEARCHTRANSFERDATASOURCE_H
#define CHECKSUMSEARCHTRANSFERDATASOURCE_H
#include "core/transferdatasource.h"
#include <KIO/Job>
class ChecksumSearch;
class ChecksumSearchTransferDataSource;
/**
* ChecksumSearchController downloads the baseUrl of files one want to get checksums for
* e.g. www.example.com/directory/file.zip the baseUrl would be www.example.com/directory/
* the result is cached so not downloaded multiple times
*/
class ChecksumSearchController : public QObject
{
Q_OBJECT
public:
ChecksumSearchController(QObject *parent = 0);
~ChecksumSearchController();
/**
* Registers a search, downloads baseUrl if that has not be downloaded and then
* calls gotBaseUrl for any ChecksumSearchTransferDataSource that was registered
* for this baseUrl
* @param search ChecksumSearchTransferDataSource to register to baseUrl
* @param baseUrl that is being downloaded
*/
void registerSearch(ChecksumSearchTransferDataSource *search, const KUrl &baseUrl);
/**
* Unregisters a search, do that e.g. if the search gets destroyed
* @param search ChecksumSearchTransferDataSource to unregister to baseUrl
* @param baseUrl can be empty, in that case search is unregistered for any url
*/
void unregisterSearch(ChecksumSearchTransferDataSource *search, const KUrl &baseUrl = KUrl());
private slots:
void slotEntries(KIO::Job *job, const KIO::UDSEntryList &entries);
void slotResult(KJob *job);
private:
QMultiHash<KUrl, ChecksumSearchTransferDataSource*> m_searches;
QHash<KUrl, KUrl> m_finished;
QHash<KJob*, QPair<KUrl, KUrl> > m_jobs;
};
class ChecksumSearchTransferDataSource : public TransferDataSource
{
Q_OBJECT
public:
ChecksumSearchTransferDataSource(const KUrl &srcUrl, QObject *parent);
virtual ~ChecksumSearchTransferDataSource();
void start();
void stop();
void addSegments(const QPair<KIO::fileoffset_t, KIO::fileoffset_t> &segmentSize, const QPair<int, int> &segmentRange);
private:
void gotBaseUrl(const KUrl &urlToFile);
private:
KUrl m_src;
static ChecksumSearchController s_controller;
friend class ChecksumSearchController;
};
#endif