File indexing completed on 2024-04-28 04:57:31

 /***************************************************************************
  *   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>
 #include <KIO/UDSEntry>
 
 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 = nullptr);
     ~ChecksumSearchController() override;
 
     /**
      * 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 QUrl &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 QUrl &baseUrl = QUrl());
 
 private Q_SLOTS:
     void slotEntries(KIO::Job *job, const KIO::UDSEntryList &entries);
     void slotResult(KJob *job);
 
 private:
     QMultiHash<QUrl, ChecksumSearchTransferDataSource *> m_searches;
     QHash<QUrl, QUrl> m_finished;
     QHash<KJob *, QPair<QUrl, QUrl>> m_jobs;
 };
 
 class ChecksumSearchTransferDataSource : public TransferDataSource
 {
     Q_OBJECT
 public:
     ChecksumSearchTransferDataSource(const QUrl &srcUrl, QObject *parent);
     ~ChecksumSearchTransferDataSource() override;
 
     void start() override;
     void stop() override;
     void addSegments(const QPair<KIO::fileoffset_t, KIO::fileoffset_t> &segmentSize, const QPair<int, int> &segmentRange) override;
 
 private:
     void gotBaseUrl(const QUrl &urlToFile);
 
 private:
     QUrl m_src;
     static ChecksumSearchController s_controller;
 
     friend class ChecksumSearchController;
 };
 
 #endif