2008-05-11 17:21:14 +00:00
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/****************************************************************************
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** Filename: zip_p.h
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** Last updated [dd/mm/yyyy]: 28/01/2007
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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 Angius Fabrizio. All rights reserved.
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**
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** This file is part of the OSDaB project (http://osdab.sourceforge.net/).
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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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// 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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#ifndef OSDAB_ZIP_P__H
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#define OSDAB_ZIP_P__H
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#include "zip.h"
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#include "zipentry_p.h"
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#include <QtGlobal>
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#include <QFileInfo>
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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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class ZipPrivate
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{
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public:
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ZipPrivate();
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virtual ~ZipPrivate();
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QMap<QString,ZipEntryP*>* headers;
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QIODevice* device;
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char buffer1[ZIP_READ_BUFFER];
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char buffer2[ZIP_READ_BUFFER];
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unsigned char* uBuffer;
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const quint32* crcTable;
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QString comment;
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QString password;
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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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bool zLibInit();
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Zip::ErrorCode createEntry(const QFileInfo& file, const QString& root, Zip::CompressionLevel level);
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Zip::CompressionLevel detectCompressionByMime(const QString& ext);
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inline void encryptBytes(quint32* keys, char* buffer, qint64 read);
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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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inline QString extractRoot(const QString& p);
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};
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#endif // OSDAB_ZIP_P__H
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