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/**************************************************************************** |
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** Filename: zip_p.h |
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** Last updated [dd/mm/yyyy]: 27/03/2011 |
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** |
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** pkzip 2.0 file compression. |
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** |
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** Some of the code has been inspired by other open source projects, |
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** (mainly Info-Zip and Gilles Vollant's minizip). |
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** Compression and decompression actually uses the zlib library. |
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** |
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** Copyright (C) 2007-2012 Angius Fabrizio. All rights reserved. |
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** |
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** This file is part of the OSDaB project (http://osdab.42cows.org/). |
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** |
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** This file may be distributed and/or modified under the terms of the |
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** GNU General Public License version 2 as published by the Free Software |
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** Foundation and appearing in the file LICENSE.GPL included in the |
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** packaging of this file. |
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** |
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** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE |
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** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. |
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** |
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** See the file LICENSE.GPL that came with this software distribution or |
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** visit http://www.gnu.org/copyleft/gpl.html for GPL licensing information. |
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** |
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**********************************************************************/ |
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|
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// |
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// W A R N I N G |
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// ------------- |
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// |
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// This file is not part of the Zip/UnZip API. It exists purely as an |
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// implementation detail. This header file may change from version to |
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// version without notice, or even be removed. |
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// |
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// We mean it. |
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// |
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|
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#ifndef OSDAB_ZIP_P__H |
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#define OSDAB_ZIP_P__H |
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|
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#include "zip.h" |
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#include "zipentry_p.h" |
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|
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#include <QtCore/QFileInfo> |
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#include <QtCore/QObject> |
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#include <QtCore/QtGlobal> |
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|
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#include <zlib/zconf.h> |
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|
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/*! |
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zLib authors suggest using larger buffers (128K or 256K) for (de)compression (especially for inflate()) |
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we use a 256K buffer here - if you want to use this code on a pre-iceage mainframe please change it ;) |
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*/ |
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#define ZIP_READ_BUFFER (256*1024) |
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|
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OSDAB_BEGIN_NAMESPACE(Zip) |
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|
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class ZipPrivate : public QObject |
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{ |
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Q_OBJECT |
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|
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public: |
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// uLongf from zconf.h |
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typedef uLongf crc_t; |
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|
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ZipPrivate(); |
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virtual ~ZipPrivate(); |
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|
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QMap<QString,ZipEntryP*>* headers; |
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|
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QIODevice* device; |
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QFile* file; |
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|
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char buffer1[ZIP_READ_BUFFER]; |
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char buffer2[ZIP_READ_BUFFER]; |
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|
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unsigned char* uBuffer; |
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|
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const crc_t* crcTable; |
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|
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QString comment; |
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QString password; |
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|
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Zip::ErrorCode createArchive(QIODevice* device); |
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Zip::ErrorCode closeArchive(); |
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void reset(); |
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|
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bool zLibInit(); |
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|
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bool containsEntry(const QFileInfo& info) const; |
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|
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Zip::ErrorCode addDirectory(const QString& path, const QString& root, |
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Zip::CompressionOptions options, Zip::CompressionLevel level, |
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int hierarchyLevel, int* addedFiles = 0); |
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Zip::ErrorCode addFiles(const QStringList& paths, const QString& root, |
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Zip::CompressionOptions options, Zip::CompressionLevel level, |
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int* addedFiles); |
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|
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Zip::ErrorCode createEntry(const QFileInfo& file, const QString& root, |
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Zip::CompressionLevel level); |
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Zip::CompressionLevel detectCompressionByMime(const QString& ext); |
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|
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inline quint32 updateChecksum(const quint32& crc, const quint32& val) const; |
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|
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inline void encryptBytes(quint32* keys, char* buffer, qint64 read); |
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|
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inline void setULong(quint32 v, char* buffer, unsigned int offset); |
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inline void updateKeys(quint32* keys, int c) const; |
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inline void initKeys(quint32* keys) const; |
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inline int decryptByte(quint32 key2) const; |
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|
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inline QString extractRoot(const QString& p, Zip::CompressionOptions o); |
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|
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private slots: |
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void deviceDestroyed(QObject*); |
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|
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private: |
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int compressionStrategy(const QString& path, QIODevice& file) const; |
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Zip::ErrorCode deflateFile(const QFileInfo& fileInfo, |
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quint32& crc, qint64& written, const Zip::CompressionLevel& level, quint32** keys); |
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Zip::ErrorCode storeFile(const QString& path, QIODevice& file, |
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quint32& crc, qint64& written, quint32** keys); |
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Zip::ErrorCode compressFile(const QString& path, QIODevice& file, |
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quint32& crc, qint64& written, const Zip::CompressionLevel& level, quint32** keys); |
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Zip::ErrorCode do_closeArchive(); |
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Zip::ErrorCode writeEntry(const QString& fileName, const ZipEntryP* h, quint32& szCentralDir); |
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Zip::ErrorCode writeCentralDir(quint32 offCentralDir, quint32 szCentralDir); |
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}; |
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|
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OSDAB_END_NAMESPACE |
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|
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#endif // OSDAB_ZIP_P__H |
