author | Eckhart Koeppen <eckhart.koppen@nokia.com> |
Wed, 21 Apr 2010 12:15:23 +0300 | |
branch | RCL_3 |
changeset 12 | cc75c76972ee |
parent 7 | 3f74d0d4af4c |
permissions | -rw-r--r-- |
0 | 1 |
/**************************************************************************** |
2 |
** |
|
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3b1da2848fc7
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
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** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies). |
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** All rights reserved. |
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** Contact: Nokia Corporation (qt-info@nokia.com) |
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** |
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** This file is part of the QtGui module of the Qt Toolkit. |
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** |
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** $QT_BEGIN_LICENSE:LGPL$ |
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** No Commercial Usage |
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** This file contains pre-release code and may not be distributed. |
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** You may use this file in accordance with the terms and conditions |
|
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** contained in the Technology Preview License Agreement accompanying |
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** this package. |
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** |
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** GNU Lesser General Public License Usage |
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** Alternatively, this file may be used under the terms of the GNU Lesser |
|
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** General Public License version 2.1 as published by the Free Software |
|
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** Foundation and appearing in the file LICENSE.LGPL included in the |
|
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** packaging of this file. Please review the following information to |
|
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** ensure the GNU Lesser General Public License version 2.1 requirements |
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. |
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** |
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** In addition, as a special exception, Nokia gives you certain additional |
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** rights. These rights are described in the Nokia Qt LGPL Exception |
|
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. |
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** |
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** If you have questions regarding the use of this file, please contact |
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** Nokia at qt-info@nokia.com. |
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** |
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** |
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** |
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** |
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** |
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** |
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** |
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** |
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** $QT_END_LICENSE$ |
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** |
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****************************************************************************/ |
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||
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#include <qglobal.h> |
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43 |
||
44 |
#ifndef QT_NO_TEXTODFWRITER |
|
45 |
||
46 |
#include "qzipreader_p.h" |
|
47 |
#include "qzipwriter_p.h" |
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#include <qdatetime.h> |
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49 |
#include <qplatformdefs.h> |
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#include <qendian.h> |
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#include <qdebug.h> |
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#include <qdir.h> |
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||
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#include <zlib.h> |
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||
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#if defined(Q_OS_WIN) |
|
7
3f74d0d4af4c
qt:70947f0f93d948bc89b3b43d00da758a51f1ef84
Eckhart Koeppen <eckhart.koppen@nokia.com>
parents:
4
diff
changeset
|
57 |
# undef S_IFREG |
3f74d0d4af4c
qt:70947f0f93d948bc89b3b43d00da758a51f1ef84
Eckhart Koeppen <eckhart.koppen@nokia.com>
parents:
4
diff
changeset
|
58 |
# define S_IFREG 0100000 |
3f74d0d4af4c
qt:70947f0f93d948bc89b3b43d00da758a51f1ef84
Eckhart Koeppen <eckhart.koppen@nokia.com>
parents:
4
diff
changeset
|
59 |
# ifndef S_IFDIR |
3f74d0d4af4c
qt:70947f0f93d948bc89b3b43d00da758a51f1ef84
Eckhart Koeppen <eckhart.koppen@nokia.com>
parents:
4
diff
changeset
|
60 |
# define S_IFDIR 0040000 |
3f74d0d4af4c
qt:70947f0f93d948bc89b3b43d00da758a51f1ef84
Eckhart Koeppen <eckhart.koppen@nokia.com>
parents:
4
diff
changeset
|
61 |
# endif |
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# ifndef S_ISDIR |
7
3f74d0d4af4c
qt:70947f0f93d948bc89b3b43d00da758a51f1ef84
Eckhart Koeppen <eckhart.koppen@nokia.com>
parents:
4
diff
changeset
|
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# define S_ISDIR(x) ((x) & S_IFDIR) > 0 |
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# endif |
65 |
# ifndef S_ISREG |
|
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# define S_ISREG(x) ((x) & 0170000) == S_IFREG |
|
67 |
# endif |
|
68 |
# define S_IFLNK 020000 |
|
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# define S_ISLNK(x) ((x) & S_IFLNK) > 0 |
|
70 |
# ifndef S_IRUSR |
|
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# define S_IRUSR 0400 |
|
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# endif |
|
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# ifndef S_IWUSR |
|
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# define S_IWUSR 0200 |
|
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# endif |
|
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# ifndef S_IXUSR |
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# define S_IXUSR 0100 |
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# endif |
|
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# define S_IRGRP 0040 |
|
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# define S_IWGRP 0020 |
|
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# define S_IXGRP 0010 |
|
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# define S_IROTH 0004 |
|
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# define S_IWOTH 0002 |
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# define S_IXOTH 0001 |
|
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#endif |
|
86 |
||
87 |
#if 0 |
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#define ZDEBUG qDebug |
|
89 |
#else |
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#define ZDEBUG if (0) qDebug |
|
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#endif |
|
92 |
||
93 |
QT_BEGIN_NAMESPACE |
|
94 |
||
95 |
static inline uint readUInt(const uchar *data) |
|
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{ |
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return (data[0]) + (data[1]<<8) + (data[2]<<16) + (data[3]<<24); |
|
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} |
|
99 |
||
100 |
static inline ushort readUShort(const uchar *data) |
|
101 |
{ |
|
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return (data[0]) + (data[1]<<8); |
|
103 |
} |
|
104 |
||
105 |
static inline void writeUInt(uchar *data, uint i) |
|
106 |
{ |
|
107 |
data[0] = i & 0xff; |
|
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data[1] = (i>>8) & 0xff; |
|
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data[2] = (i>>16) & 0xff; |
|
110 |
data[3] = (i>>24) & 0xff; |
|
111 |
} |
|
112 |
||
113 |
static inline void writeUShort(uchar *data, ushort i) |
|
114 |
{ |
|
115 |
data[0] = i & 0xff; |
|
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data[1] = (i>>8) & 0xff; |
|
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} |
|
118 |
||
119 |
static inline void copyUInt(uchar *dest, const uchar *src) |
|
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{ |
|
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dest[0] = src[0]; |
|
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dest[1] = src[1]; |
|
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dest[2] = src[2]; |
|
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dest[3] = src[3]; |
|
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} |
|
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||
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static inline void copyUShort(uchar *dest, const uchar *src) |
|
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{ |
|
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dest[0] = src[0]; |
|
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dest[1] = src[1]; |
|
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} |
|
132 |
||
133 |
static void writeMSDosDate(uchar *dest, const QDateTime& dt) |
|
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{ |
|
135 |
if (dt.isValid()) { |
|
136 |
quint16 time = |
|
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(dt.time().hour() << 11) // 5 bit hour |
|
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| (dt.time().minute() << 5) // 6 bit minute |
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| (dt.time().second() >> 1); // 5 bit double seconds |
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dest[0] = time & 0xff; |
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dest[1] = time >> 8; |
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||
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quint16 date = |
|
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((dt.date().year() - 1980) << 9) // 7 bit year 1980-based |
|
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| (dt.date().month() << 5) // 4 bit month |
|
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| (dt.date().day()); // 5 bit day |
|
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||
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dest[2] = char(date); |
|
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dest[3] = char(date >> 8); |
|
151 |
} else { |
|
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dest[0] = 0; |
|
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dest[1] = 0; |
|
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dest[2] = 0; |
|
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dest[3] = 0; |
|
156 |
} |
|
157 |
} |
|
158 |
||
159 |
static quint32 permissionsToMode(QFile::Permissions perms) |
|
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{ |
|
161 |
quint32 mode = 0; |
|
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if (perms & QFile::ReadOwner) |
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mode |= S_IRUSR; |
|
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if (perms & QFile::WriteOwner) |
|
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mode |= S_IWUSR; |
|
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if (perms & QFile::ExeOwner) |
|
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mode |= S_IXUSR; |
|
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if (perms & QFile::ReadUser) |
|
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mode |= S_IRUSR; |
|
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if (perms & QFile::WriteUser) |
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mode |= S_IWUSR; |
|
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if (perms & QFile::ExeUser) |
|
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mode |= S_IXUSR; |
|
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if (perms & QFile::ReadGroup) |
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mode |= S_IRGRP; |
|
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if (perms & QFile::WriteGroup) |
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mode |= S_IWGRP; |
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if (perms & QFile::ExeGroup) |
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mode |= S_IXGRP; |
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if (perms & QFile::ReadOther) |
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mode |= S_IROTH; |
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if (perms & QFile::WriteOther) |
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mode |= S_IWOTH; |
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if (perms & QFile::ExeOther) |
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mode |= S_IXOTH; |
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return mode; |
|
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} |
|
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||
189 |
static int inflate(Bytef *dest, ulong *destLen, const Bytef *source, ulong sourceLen) |
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{ |
|
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z_stream stream; |
|
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int err; |
|
193 |
||
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stream.next_in = (Bytef*)source; |
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stream.avail_in = (uInt)sourceLen; |
|
196 |
if ((uLong)stream.avail_in != sourceLen) |
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return Z_BUF_ERROR; |
|
198 |
||
199 |
stream.next_out = dest; |
|
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stream.avail_out = (uInt)*destLen; |
|
201 |
if ((uLong)stream.avail_out != *destLen) |
|
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return Z_BUF_ERROR; |
|
203 |
||
204 |
stream.zalloc = (alloc_func)0; |
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205 |
stream.zfree = (free_func)0; |
|
206 |
||
207 |
err = inflateInit2(&stream, -MAX_WBITS); |
|
208 |
if (err != Z_OK) |
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209 |
return err; |
|
210 |
||
211 |
err = inflate(&stream, Z_FINISH); |
|
212 |
if (err != Z_STREAM_END) { |
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213 |
inflateEnd(&stream); |
|
214 |
if (err == Z_NEED_DICT || (err == Z_BUF_ERROR && stream.avail_in == 0)) |
|
215 |
return Z_DATA_ERROR; |
|
216 |
return err; |
|
217 |
} |
|
218 |
*destLen = stream.total_out; |
|
219 |
||
220 |
err = inflateEnd(&stream); |
|
221 |
return err; |
|
222 |
} |
|
223 |
||
224 |
static int deflate (Bytef *dest, ulong *destLen, const Bytef *source, ulong sourceLen) |
|
225 |
{ |
|
226 |
z_stream stream; |
|
227 |
int err; |
|
228 |
||
229 |
stream.next_in = (Bytef*)source; |
|
230 |
stream.avail_in = (uInt)sourceLen; |
|
231 |
stream.next_out = dest; |
|
232 |
stream.avail_out = (uInt)*destLen; |
|
233 |
if ((uLong)stream.avail_out != *destLen) return Z_BUF_ERROR; |
|
234 |
||
235 |
stream.zalloc = (alloc_func)0; |
|
236 |
stream.zfree = (free_func)0; |
|
237 |
stream.opaque = (voidpf)0; |
|
238 |
||
239 |
err = deflateInit2(&stream, Z_DEFAULT_COMPRESSION, Z_DEFLATED, -MAX_WBITS, 8, Z_DEFAULT_STRATEGY); |
|
240 |
if (err != Z_OK) return err; |
|
241 |
||
242 |
err = deflate(&stream, Z_FINISH); |
|
243 |
if (err != Z_STREAM_END) { |
|
244 |
deflateEnd(&stream); |
|
245 |
return err == Z_OK ? Z_BUF_ERROR : err; |
|
246 |
} |
|
247 |
*destLen = stream.total_out; |
|
248 |
||
249 |
err = deflateEnd(&stream); |
|
250 |
return err; |
|
251 |
} |
|
252 |
||
253 |
static QFile::Permissions modeToPermissions(quint32 mode) |
|
254 |
{ |
|
255 |
QFile::Permissions ret; |
|
256 |
if (mode & S_IRUSR) |
|
257 |
ret |= QFile::ReadOwner; |
|
258 |
if (mode & S_IWUSR) |
|
259 |
ret |= QFile::WriteOwner; |
|
260 |
if (mode & S_IXUSR) |
|
261 |
ret |= QFile::ExeOwner; |
|
262 |
if (mode & S_IRUSR) |
|
263 |
ret |= QFile::ReadUser; |
|
264 |
if (mode & S_IWUSR) |
|
265 |
ret |= QFile::WriteUser; |
|
266 |
if (mode & S_IXUSR) |
|
267 |
ret |= QFile::ExeUser; |
|
268 |
if (mode & S_IRGRP) |
|
269 |
ret |= QFile::ReadGroup; |
|
270 |
if (mode & S_IWGRP) |
|
271 |
ret |= QFile::WriteGroup; |
|
272 |
if (mode & S_IXGRP) |
|
273 |
ret |= QFile::ExeGroup; |
|
274 |
if (mode & S_IROTH) |
|
275 |
ret |= QFile::ReadOther; |
|
276 |
if (mode & S_IWOTH) |
|
277 |
ret |= QFile::WriteOther; |
|
278 |
if (mode & S_IXOTH) |
|
279 |
ret |= QFile::ExeOther; |
|
280 |
return ret; |
|
281 |
} |
|
282 |
||
283 |
struct LocalFileHeader |
|
284 |
{ |
|
285 |
uchar signature[4]; // 0x04034b50 |
|
286 |
uchar version_needed[2]; |
|
287 |
uchar general_purpose_bits[2]; |
|
288 |
uchar compression_method[2]; |
|
289 |
uchar last_mod_file[4]; |
|
290 |
uchar crc_32[4]; |
|
291 |
uchar compressed_size[4]; |
|
292 |
uchar uncompressed_size[4]; |
|
293 |
uchar file_name_length[2]; |
|
294 |
uchar extra_field_length[2]; |
|
295 |
}; |
|
296 |
||
297 |
struct DataDescriptor |
|
298 |
{ |
|
299 |
uchar crc_32[4]; |
|
300 |
uchar compressed_size[4]; |
|
301 |
uchar uncompressed_size[4]; |
|
302 |
}; |
|
303 |
||
304 |
struct CentralFileHeader |
|
305 |
{ |
|
306 |
uchar signature[4]; // 0x02014b50 |
|
307 |
uchar version_made[2]; |
|
308 |
uchar version_needed[2]; |
|
309 |
uchar general_purpose_bits[2]; |
|
310 |
uchar compression_method[2]; |
|
311 |
uchar last_mod_file[4]; |
|
312 |
uchar crc_32[4]; |
|
313 |
uchar compressed_size[4]; |
|
314 |
uchar uncompressed_size[4]; |
|
315 |
uchar file_name_length[2]; |
|
316 |
uchar extra_field_length[2]; |
|
317 |
uchar file_comment_length[2]; |
|
318 |
uchar disk_start[2]; |
|
319 |
uchar internal_file_attributes[2]; |
|
320 |
uchar external_file_attributes[4]; |
|
321 |
uchar offset_local_header[4]; |
|
322 |
LocalFileHeader toLocalHeader() const; |
|
323 |
}; |
|
324 |
||
325 |
struct EndOfDirectory |
|
326 |
{ |
|
327 |
uchar signature[4]; // 0x06054b50 |
|
328 |
uchar this_disk[2]; |
|
329 |
uchar start_of_directory_disk[2]; |
|
330 |
uchar num_dir_entries_this_disk[2]; |
|
331 |
uchar num_dir_entries[2]; |
|
332 |
uchar directory_size[4]; |
|
333 |
uchar dir_start_offset[4]; |
|
334 |
uchar comment_length[2]; |
|
335 |
}; |
|
336 |
||
337 |
struct FileHeader |
|
338 |
{ |
|
339 |
CentralFileHeader h; |
|
340 |
QByteArray file_name; |
|
341 |
QByteArray extra_field; |
|
342 |
QByteArray file_comment; |
|
343 |
}; |
|
344 |
||
345 |
QZipReader::FileInfo::FileInfo() |
|
346 |
: isDir(false), isFile(true), isSymLink(false), crc32(0), size(0) |
|
347 |
{ |
|
348 |
} |
|
349 |
||
350 |
QZipReader::FileInfo::~FileInfo() |
|
351 |
{ |
|
352 |
} |
|
353 |
||
354 |
QZipReader::FileInfo::FileInfo(const FileInfo &other) |
|
355 |
{ |
|
356 |
operator=(other); |
|
357 |
} |
|
358 |
||
359 |
QZipReader::FileInfo& QZipReader::FileInfo::operator=(const FileInfo &other) |
|
360 |
{ |
|
361 |
filePath = other.filePath; |
|
362 |
isDir = other.isDir; |
|
363 |
isFile = other.isFile; |
|
364 |
isSymLink = other.isSymLink; |
|
365 |
permissions = other.permissions; |
|
366 |
crc32 = other.crc32; |
|
367 |
size = other.size; |
|
368 |
return *this; |
|
369 |
} |
|
370 |
||
371 |
class QZipPrivate |
|
372 |
{ |
|
373 |
public: |
|
374 |
QZipPrivate(QIODevice *device, bool ownDev) |
|
375 |
: device(device), ownDevice(ownDev), dirtyFileTree(true), start_of_directory(0) |
|
376 |
{ |
|
377 |
} |
|
378 |
||
379 |
~QZipPrivate() |
|
380 |
{ |
|
381 |
if (ownDevice) |
|
382 |
delete device; |
|
383 |
} |
|
384 |
||
385 |
void fillFileInfo(int index, QZipReader::FileInfo &fileInfo) const; |
|
386 |
||
387 |
QIODevice *device; |
|
388 |
bool ownDevice; |
|
389 |
bool dirtyFileTree; |
|
390 |
QList<FileHeader> fileHeaders; |
|
391 |
QByteArray comment; |
|
392 |
uint start_of_directory; |
|
393 |
}; |
|
394 |
||
395 |
void QZipPrivate::fillFileInfo(int index, QZipReader::FileInfo &fileInfo) const |
|
396 |
{ |
|
397 |
FileHeader header = fileHeaders.at(index); |
|
398 |
fileInfo.filePath = QString::fromLocal8Bit(header.file_name); |
|
399 |
const quint32 mode = (qFromLittleEndian<quint32>(&header.h.external_file_attributes[0]) >> 16) & 0xFFFF; |
|
400 |
fileInfo.isDir = S_ISDIR(mode); |
|
401 |
fileInfo.isFile = S_ISREG(mode); |
|
402 |
fileInfo.isSymLink = S_ISLNK(mode); |
|
403 |
fileInfo.permissions = modeToPermissions(mode); |
|
404 |
fileInfo.crc32 = readUInt(header.h.crc_32); |
|
405 |
fileInfo.size = readUInt(header.h.uncompressed_size); |
|
406 |
} |
|
407 |
||
408 |
class QZipReaderPrivate : public QZipPrivate |
|
409 |
{ |
|
410 |
public: |
|
411 |
QZipReaderPrivate(QIODevice *device, bool ownDev) |
|
412 |
: QZipPrivate(device, ownDev), status(QZipReader::NoError) |
|
413 |
{ |
|
414 |
} |
|
415 |
||
416 |
void scanFiles(); |
|
417 |
||
418 |
QZipReader::Status status; |
|
419 |
}; |
|
420 |
||
421 |
class QZipWriterPrivate : public QZipPrivate |
|
422 |
{ |
|
423 |
public: |
|
424 |
QZipWriterPrivate(QIODevice *device, bool ownDev) |
|
425 |
: QZipPrivate(device, ownDev), |
|
426 |
status(QZipWriter::NoError), |
|
427 |
permissions(QFile::ReadOwner | QFile::WriteOwner), |
|
428 |
compressionPolicy(QZipWriter::AlwaysCompress) |
|
429 |
{ |
|
430 |
} |
|
431 |
||
432 |
QZipWriter::Status status; |
|
433 |
QFile::Permissions permissions; |
|
434 |
QZipWriter::CompressionPolicy compressionPolicy; |
|
435 |
||
436 |
enum EntryType { Directory, File, Symlink }; |
|
437 |
||
438 |
void addEntry(EntryType type, const QString &fileName, const QByteArray &contents); |
|
439 |
}; |
|
440 |
||
441 |
LocalFileHeader CentralFileHeader::toLocalHeader() const |
|
442 |
{ |
|
443 |
LocalFileHeader h; |
|
444 |
writeUInt(h.signature, 0x04034b50); |
|
445 |
copyUShort(h.version_needed, version_needed); |
|
446 |
copyUShort(h.general_purpose_bits, general_purpose_bits); |
|
447 |
copyUShort(h.compression_method, compression_method); |
|
448 |
copyUInt(h.last_mod_file, last_mod_file); |
|
449 |
copyUInt(h.crc_32, crc_32); |
|
450 |
copyUInt(h.compressed_size, compressed_size); |
|
451 |
copyUInt(h.uncompressed_size, uncompressed_size); |
|
452 |
copyUShort(h.file_name_length, file_name_length); |
|
453 |
copyUShort(h.extra_field_length, extra_field_length); |
|
454 |
return h; |
|
455 |
} |
|
456 |
||
457 |
void QZipReaderPrivate::scanFiles() |
|
458 |
{ |
|
459 |
if (!dirtyFileTree) |
|
460 |
return; |
|
461 |
||
462 |
if (! (device->isOpen() || device->open(QIODevice::ReadOnly))) { |
|
463 |
status = QZipReader::FileOpenError; |
|
464 |
return; |
|
465 |
} |
|
466 |
||
467 |
if ((device->openMode() & QIODevice::ReadOnly) == 0) { // only read the index from readable files. |
|
468 |
status = QZipReader::FileReadError; |
|
469 |
return; |
|
470 |
} |
|
471 |
||
472 |
dirtyFileTree = false; |
|
473 |
uchar tmp[4]; |
|
474 |
device->read((char *)tmp, 4); |
|
475 |
if (readUInt(tmp) != 0x04034b50) { |
|
476 |
qWarning() << "QZip: not a zip file!"; |
|
477 |
return; |
|
478 |
} |
|
479 |
||
480 |
// find EndOfDirectory header |
|
481 |
int i = 0; |
|
482 |
int start_of_directory = -1; |
|
483 |
int num_dir_entries = 0; |
|
484 |
EndOfDirectory eod; |
|
485 |
while (start_of_directory == -1) { |
|
486 |
int pos = device->size() - sizeof(EndOfDirectory) - i; |
|
487 |
if (pos < 0 || i > 65535) { |
|
488 |
qWarning() << "QZip: EndOfDirectory not found"; |
|
489 |
return; |
|
490 |
} |
|
491 |
||
492 |
device->seek(pos); |
|
493 |
device->read((char *)&eod, sizeof(EndOfDirectory)); |
|
494 |
if (readUInt(eod.signature) == 0x06054b50) |
|
495 |
break; |
|
496 |
++i; |
|
497 |
} |
|
498 |
||
499 |
// have the eod |
|
500 |
start_of_directory = readUInt(eod.dir_start_offset); |
|
501 |
num_dir_entries = readUShort(eod.num_dir_entries); |
|
502 |
ZDEBUG("start_of_directory at %d, num_dir_entries=%d", start_of_directory, num_dir_entries); |
|
503 |
int comment_length = readUShort(eod.comment_length); |
|
504 |
if (comment_length != i) |
|
505 |
qWarning() << "QZip: failed to parse zip file."; |
|
506 |
comment = device->read(qMin(comment_length, i)); |
|
507 |
||
508 |
||
509 |
device->seek(start_of_directory); |
|
510 |
for (i = 0; i < num_dir_entries; ++i) { |
|
511 |
FileHeader header; |
|
512 |
int read = device->read((char *) &header.h, sizeof(CentralFileHeader)); |
|
513 |
if (read < (int)sizeof(CentralFileHeader)) { |
|
514 |
qWarning() << "QZip: Failed to read complete header, index may be incomplete"; |
|
515 |
break; |
|
516 |
} |
|
517 |
if (readUInt(header.h.signature) != 0x02014b50) { |
|
518 |
qWarning() << "QZip: invalid header signature, index may be incomplete"; |
|
519 |
break; |
|
520 |
} |
|
521 |
||
522 |
int l = readUShort(header.h.file_name_length); |
|
523 |
header.file_name = device->read(l); |
|
524 |
if (header.file_name.length() != l) { |
|
525 |
qWarning() << "QZip: Failed to read filename from zip index, index may be incomplete"; |
|
526 |
break; |
|
527 |
} |
|
528 |
l = readUShort(header.h.extra_field_length); |
|
529 |
header.extra_field = device->read(l); |
|
530 |
if (header.extra_field.length() != l) { |
|
531 |
qWarning() << "QZip: Failed to read extra field in zip file, skipping file, index may be incomplete"; |
|
532 |
break; |
|
533 |
} |
|
534 |
l = readUShort(header.h.file_comment_length); |
|
535 |
header.file_comment = device->read(l); |
|
536 |
if (header.file_comment.length() != l) { |
|
537 |
qWarning() << "QZip: Failed to read read file comment, index may be incomplete"; |
|
538 |
break; |
|
539 |
} |
|
540 |
||
541 |
ZDEBUG("found file '%s'", header.file_name.data()); |
|
542 |
fileHeaders.append(header); |
|
543 |
} |
|
544 |
} |
|
545 |
||
546 |
void QZipWriterPrivate::addEntry(EntryType type, const QString &fileName, const QByteArray &contents/*, QFile::Permissions permissions, QZip::Method m*/) |
|
547 |
{ |
|
548 |
#ifndef NDEBUG |
|
549 |
static const char *entryTypes[] = { |
|
550 |
"directory", |
|
551 |
"file ", |
|
552 |
"symlink " }; |
|
553 |
ZDEBUG() << "adding" << entryTypes[type] <<":" << fileName.toUtf8().data() << (type == 2 ? (" -> " + contents).constData() : ""); |
|
554 |
#endif |
|
555 |
||
556 |
if (! (device->isOpen() || device->open(QIODevice::WriteOnly))) { |
|
557 |
status = QZipWriter::FileOpenError; |
|
558 |
return; |
|
559 |
} |
|
560 |
device->seek(start_of_directory); |
|
561 |
||
562 |
// don't compress small files |
|
563 |
QZipWriter::CompressionPolicy compression = compressionPolicy; |
|
564 |
if (compressionPolicy == QZipWriter::AutoCompress) { |
|
565 |
if (contents.length() < 64) |
|
566 |
compression = QZipWriter::NeverCompress; |
|
567 |
else |
|
568 |
compression = QZipWriter::AlwaysCompress; |
|
569 |
} |
|
570 |
||
571 |
FileHeader header; |
|
572 |
memset(&header.h, 0, sizeof(CentralFileHeader)); |
|
573 |
writeUInt(header.h.signature, 0x02014b50); |
|
574 |
||
575 |
writeUShort(header.h.version_needed, 0x14); |
|
576 |
writeUInt(header.h.uncompressed_size, contents.length()); |
|
577 |
writeMSDosDate(header.h.last_mod_file, QDateTime::currentDateTime()); |
|
578 |
QByteArray data = contents; |
|
579 |
if (compression == QZipWriter::AlwaysCompress) { |
|
580 |
writeUShort(header.h.compression_method, 8); |
|
581 |
||
582 |
ulong len = contents.length(); |
|
583 |
// shamelessly copied form zlib |
|
584 |
len += (len >> 12) + (len >> 14) + 11; |
|
585 |
int res; |
|
586 |
do { |
|
587 |
data.resize(len); |
|
588 |
res = deflate((uchar*)data.data(), &len, (const uchar*)contents.constData(), contents.length()); |
|
589 |
||
590 |
switch (res) { |
|
591 |
case Z_OK: |
|
592 |
data.resize(len); |
|
593 |
break; |
|
594 |
case Z_MEM_ERROR: |
|
595 |
qWarning("QZip: Z_MEM_ERROR: Not enough memory to compress file, skipping"); |
|
596 |
data.resize(0); |
|
597 |
break; |
|
598 |
case Z_BUF_ERROR: |
|
599 |
len *= 2; |
|
600 |
break; |
|
601 |
} |
|
602 |
} while (res == Z_BUF_ERROR); |
|
603 |
} |
|
604 |
// TODO add a check if data.length() > contents.length(). Then try to store the original and revert the compression method to be uncompressed |
|
605 |
writeUInt(header.h.compressed_size, data.length()); |
|
606 |
uint crc_32 = ::crc32(0, 0, 0); |
|
607 |
crc_32 = ::crc32(crc_32, (const uchar *)contents.constData(), contents.length()); |
|
608 |
writeUInt(header.h.crc_32, crc_32); |
|
609 |
||
610 |
header.file_name = fileName.toLocal8Bit(); |
|
611 |
if (header.file_name.size() > 0xffff) { |
|
612 |
qWarning("QZip: Filename too long, chopping it to 65535 characters"); |
|
613 |
header.file_name = header.file_name.left(0xffff); |
|
614 |
} |
|
615 |
writeUShort(header.h.file_name_length, header.file_name.length()); |
|
616 |
//h.extra_field_length[2]; |
|
617 |
||
618 |
writeUShort(header.h.version_made, 3 << 8); |
|
619 |
//uchar internal_file_attributes[2]; |
|
620 |
//uchar external_file_attributes[4]; |
|
621 |
quint32 mode = permissionsToMode(permissions); |
|
622 |
switch (type) { |
|
623 |
case File: mode |= S_IFREG; break; |
|
624 |
case Directory: mode |= S_IFDIR; break; |
|
625 |
case Symlink: mode |= S_IFLNK; break; |
|
626 |
} |
|
627 |
writeUInt(header.h.external_file_attributes, mode << 16); |
|
628 |
writeUInt(header.h.offset_local_header, start_of_directory); |
|
629 |
||
630 |
||
631 |
fileHeaders.append(header); |
|
632 |
||
633 |
LocalFileHeader h = header.h.toLocalHeader(); |
|
634 |
device->write((const char *)&h, sizeof(LocalFileHeader)); |
|
635 |
device->write(header.file_name); |
|
636 |
device->write(data); |
|
637 |
start_of_directory = device->pos(); |
|
638 |
dirtyFileTree = true; |
|
639 |
} |
|
640 |
||
641 |
////////////////////////////// Reader |
|
642 |
||
643 |
/*! |
|
644 |
\class QZipReader::FileInfo |
|
645 |
\internal |
|
646 |
Represents one entry in the zip table of contents. |
|
647 |
*/ |
|
648 |
||
649 |
/*! |
|
650 |
\variable FileInfo::filePath |
|
651 |
The full filepath inside the archive. |
|
652 |
*/ |
|
653 |
||
654 |
/*! |
|
655 |
\variable FileInfo::isDir |
|
656 |
A boolean type indicating if the entry is a directory. |
|
657 |
*/ |
|
658 |
||
659 |
/*! |
|
660 |
\variable FileInfo::isFile |
|
661 |
A boolean type, if it is one this entry is a file. |
|
662 |
*/ |
|
663 |
||
664 |
/*! |
|
665 |
\variable FileInfo::isSymLink |
|
666 |
A boolean type, if it is one this entry is symbolic link. |
|
667 |
*/ |
|
668 |
||
669 |
/*! |
|
670 |
\variable FileInfo::permissions |
|
671 |
A list of flags for the permissions of this entry. |
|
672 |
*/ |
|
673 |
||
674 |
/*! |
|
675 |
\variable FileInfo::crc32 |
|
676 |
The calculated checksum as a crc32 type. |
|
677 |
*/ |
|
678 |
||
679 |
/*! |
|
680 |
\variable FileInfo::size |
|
681 |
The total size of the unpacked content. |
|
682 |
*/ |
|
683 |
||
684 |
/*! |
|
685 |
\variable FileInfo::d |
|
686 |
\internal |
|
687 |
private pointer. |
|
688 |
*/ |
|
689 |
||
690 |
/*! |
|
691 |
\class QZipReader |
|
692 |
\internal |
|
693 |
\since 4.5 |
|
694 |
||
695 |
\brief the QZipReader class provides a way to inspect the contents of a zip |
|
696 |
archive and extract individual files from it. |
|
697 |
||
698 |
QZipReader can be used to read a zip archive either from a file or from any |
|
699 |
device. An in-memory QBuffer for instance. The reader can be used to read |
|
700 |
which files are in the archive using fileInfoList() and entryInfoAt() but |
|
701 |
also to extract individual files using fileData() or even to extract all |
|
702 |
files in the archive using extractAll() |
|
703 |
*/ |
|
704 |
||
705 |
/*! |
|
706 |
Create a new zip archive that operates on the \a fileName. The file will be |
|
707 |
opened with the \a mode. |
|
708 |
*/ |
|
709 |
QZipReader::QZipReader(const QString &archive, QIODevice::OpenMode mode) |
|
710 |
{ |
|
711 |
QScopedPointer<QFile> f(new QFile(archive)); |
|
712 |
f->open(mode); |
|
713 |
QZipReader::Status status; |
|
714 |
if (f->error() == QFile::NoError) |
|
715 |
status = NoError; |
|
716 |
else { |
|
717 |
if (f->error() == QFile::ReadError) |
|
718 |
status = FileReadError; |
|
719 |
else if (f->error() == QFile::OpenError) |
|
720 |
status = FileOpenError; |
|
721 |
else if (f->error() == QFile::PermissionsError) |
|
722 |
status = FilePermissionsError; |
|
723 |
else |
|
724 |
status = FileError; |
|
725 |
} |
|
726 |
||
727 |
d = new QZipReaderPrivate(f.data(), /*ownDevice=*/true); |
|
728 |
f.take(); |
|
729 |
d->status = status; |
|
730 |
} |
|
731 |
||
732 |
/*! |
|
733 |
Create a new zip archive that operates on the archive found in \a device. |
|
734 |
You have to open the device previous to calling the constructor and only a |
|
735 |
device that is readable will be scanned for zip filecontent. |
|
736 |
*/ |
|
737 |
QZipReader::QZipReader(QIODevice *device) |
|
738 |
: d(new QZipReaderPrivate(device, /*ownDevice=*/false)) |
|
739 |
{ |
|
740 |
Q_ASSERT(device); |
|
741 |
} |
|
742 |
||
743 |
/*! |
|
744 |
Desctructor |
|
745 |
*/ |
|
746 |
QZipReader::~QZipReader() |
|
747 |
{ |
|
748 |
close(); |
|
749 |
delete d; |
|
750 |
} |
|
751 |
||
752 |
/*! |
|
753 |
Returns true if the user can read the file; otherwise returns false. |
|
754 |
*/ |
|
755 |
bool QZipReader::isReadable() const |
|
756 |
{ |
|
757 |
return d->device->isReadable(); |
|
758 |
} |
|
759 |
||
760 |
/*! |
|
761 |
Returns true if the file exists; otherwise returns false. |
|
762 |
*/ |
|
763 |
bool QZipReader::exists() const |
|
764 |
{ |
|
765 |
QFile *f = qobject_cast<QFile*> (d->device); |
|
766 |
if (f == 0) |
|
767 |
return true; |
|
768 |
return f->exists(); |
|
769 |
} |
|
770 |
||
771 |
/*! |
|
772 |
Returns the list of files the archive contains. |
|
773 |
*/ |
|
774 |
QList<QZipReader::FileInfo> QZipReader::fileInfoList() const |
|
775 |
{ |
|
776 |
d->scanFiles(); |
|
777 |
QList<QZipReader::FileInfo> files; |
|
778 |
for (int i = 0; i < d->fileHeaders.size(); ++i) { |
|
779 |
QZipReader::FileInfo fi; |
|
780 |
d->fillFileInfo(i, fi); |
|
781 |
files.append(fi); |
|
782 |
} |
|
783 |
return files; |
|
784 |
||
785 |
} |
|
786 |
||
787 |
/*! |
|
788 |
Return the number of items in the zip archive. |
|
789 |
*/ |
|
790 |
int QZipReader::count() const |
|
791 |
{ |
|
792 |
d->scanFiles(); |
|
793 |
return d->fileHeaders.count(); |
|
794 |
} |
|
795 |
||
796 |
/*! |
|
797 |
Returns a FileInfo of an entry in the zipfile. |
|
798 |
The \a index is the index into the directoy listing of the zipfile. |
|
799 |
||
800 |
\sa fileInfoList() |
|
801 |
*/ |
|
802 |
QZipReader::FileInfo QZipReader::entryInfoAt(int index) const |
|
803 |
{ |
|
804 |
d->scanFiles(); |
|
805 |
QZipReader::FileInfo fi; |
|
806 |
d->fillFileInfo(index, fi); |
|
807 |
return fi; |
|
808 |
} |
|
809 |
||
810 |
/*! |
|
811 |
Fetch the file contents from the zip archive and return the uncompressed bytes. |
|
812 |
*/ |
|
813 |
QByteArray QZipReader::fileData(const QString &fileName) const |
|
814 |
{ |
|
815 |
d->scanFiles(); |
|
816 |
int i; |
|
817 |
for (i = 0; i < d->fileHeaders.size(); ++i) { |
|
818 |
if (QString::fromLocal8Bit(d->fileHeaders.at(i).file_name) == fileName) |
|
819 |
break; |
|
820 |
} |
|
821 |
if (i == d->fileHeaders.size()) |
|
822 |
return QByteArray(); |
|
823 |
||
824 |
FileHeader header = d->fileHeaders.at(i); |
|
825 |
||
826 |
int compressed_size = readUInt(header.h.compressed_size); |
|
827 |
int uncompressed_size = readUInt(header.h.uncompressed_size); |
|
828 |
int start = readUInt(header.h.offset_local_header); |
|
829 |
//qDebug("uncompressing file %d: local header at %d", i, start); |
|
830 |
||
831 |
d->device->seek(start); |
|
832 |
LocalFileHeader lh; |
|
833 |
d->device->read((char *)&lh, sizeof(LocalFileHeader)); |
|
834 |
uint skip = readUShort(lh.file_name_length) + readUShort(lh.extra_field_length); |
|
835 |
d->device->seek(d->device->pos() + skip); |
|
836 |
||
837 |
int compression_method = readUShort(lh.compression_method); |
|
838 |
//qDebug("file=%s: compressed_size=%d, uncompressed_size=%d", fileName.toLocal8Bit().data(), compressed_size, uncompressed_size); |
|
839 |
||
840 |
//qDebug("file at %lld", d->device->pos()); |
|
841 |
QByteArray compressed = d->device->read(compressed_size); |
|
842 |
if (compression_method == 0) { |
|
843 |
// no compression |
|
844 |
compressed.truncate(uncompressed_size); |
|
845 |
return compressed; |
|
846 |
} else if (compression_method == 8) { |
|
847 |
// Deflate |
|
848 |
//qDebug("compressed=%d", compressed.size()); |
|
849 |
compressed.truncate(compressed_size); |
|
850 |
QByteArray baunzip; |
|
851 |
ulong len = qMax(uncompressed_size, 1); |
|
852 |
int res; |
|
853 |
do { |
|
854 |
baunzip.resize(len); |
|
855 |
res = inflate((uchar*)baunzip.data(), &len, |
|
856 |
(uchar*)compressed.constData(), compressed_size); |
|
857 |
||
858 |
switch (res) { |
|
859 |
case Z_OK: |
|
860 |
if ((int)len != baunzip.size()) |
|
861 |
baunzip.resize(len); |
|
862 |
break; |
|
863 |
case Z_MEM_ERROR: |
|
864 |
qWarning("QZip: Z_MEM_ERROR: Not enough memory"); |
|
865 |
break; |
|
866 |
case Z_BUF_ERROR: |
|
867 |
len *= 2; |
|
868 |
break; |
|
869 |
case Z_DATA_ERROR: |
|
870 |
qWarning("QZip: Z_DATA_ERROR: Input data is corrupted"); |
|
871 |
break; |
|
872 |
} |
|
873 |
} while (res == Z_BUF_ERROR); |
|
874 |
return baunzip; |
|
875 |
} |
|
876 |
qWarning() << "QZip: Unknown compression method"; |
|
877 |
return QByteArray(); |
|
878 |
} |
|
879 |
||
880 |
/*! |
|
881 |
Extracts the full contents of the zip file into \a destinationDir on |
|
882 |
the local filesystem. |
|
883 |
In case writing or linking a file fails, the extraction will be aborted. |
|
884 |
*/ |
|
885 |
bool QZipReader::extractAll(const QString &destinationDir) const |
|
886 |
{ |
|
887 |
QDir baseDir(destinationDir); |
|
888 |
||
889 |
// create directories first |
|
890 |
QList<FileInfo> allFiles = fileInfoList(); |
|
891 |
foreach (FileInfo fi, allFiles) { |
|
892 |
const QString absPath = destinationDir + QDir::separator() + fi.filePath; |
|
893 |
if (fi.isDir) { |
|
894 |
if (!baseDir.mkpath(fi.filePath)) |
|
895 |
return false; |
|
896 |
if (!QFile::setPermissions(absPath, fi.permissions)) |
|
897 |
return false; |
|
898 |
} |
|
899 |
} |
|
900 |
||
901 |
// set up symlinks |
|
902 |
foreach (FileInfo fi, allFiles) { |
|
903 |
const QString absPath = destinationDir + QDir::separator() + fi.filePath; |
|
904 |
if (fi.isSymLink) { |
|
905 |
QString destination = QFile::decodeName(fileData(fi.filePath)); |
|
906 |
if (destination.isEmpty()) |
|
907 |
return false; |
|
908 |
QFileInfo linkFi(absPath); |
|
909 |
if (!QFile::exists(linkFi.absolutePath())) |
|
910 |
QDir::root().mkpath(linkFi.absolutePath()); |
|
911 |
if (!QFile::link(destination, absPath)) |
|
912 |
return false; |
|
913 |
/* cannot change permission of links |
|
914 |
if (!QFile::setPermissions(absPath, fi.permissions)) |
|
915 |
return false; |
|
916 |
*/ |
|
917 |
} |
|
918 |
} |
|
919 |
||
920 |
foreach (FileInfo fi, allFiles) { |
|
921 |
const QString absPath = destinationDir + QDir::separator() + fi.filePath; |
|
922 |
if (fi.isFile) { |
|
923 |
QFile f(absPath); |
|
924 |
if (!f.open(QIODevice::WriteOnly)) |
|
925 |
return false; |
|
926 |
f.write(fileData(fi.filePath)); |
|
927 |
f.setPermissions(fi.permissions); |
|
928 |
f.close(); |
|
929 |
} |
|
930 |
} |
|
931 |
||
932 |
return true; |
|
933 |
} |
|
934 |
||
935 |
/*! |
|
936 |
\enum QZipReader::Status |
|
937 |
||
938 |
The following status values are possible: |
|
939 |
||
940 |
\value NoError No error occurred. |
|
941 |
\value FileReadError An error occurred when reading from the file. |
|
942 |
\value FileOpenError The file could not be opened. |
|
943 |
\value FilePermissionsError The file could not be accessed. |
|
944 |
\value FileError Another file error occurred. |
|
945 |
*/ |
|
946 |
||
947 |
/*! |
|
948 |
Returns a status code indicating the first error that was met by QZipReader, |
|
949 |
or QZipReader::NoError if no error occurred. |
|
950 |
*/ |
|
951 |
QZipReader::Status QZipReader::status() const |
|
952 |
{ |
|
953 |
return d->status; |
|
954 |
} |
|
955 |
||
956 |
/*! |
|
957 |
Close the zip file. |
|
958 |
*/ |
|
959 |
void QZipReader::close() |
|
960 |
{ |
|
961 |
d->device->close(); |
|
962 |
} |
|
963 |
||
964 |
////////////////////////////// Writer |
|
965 |
||
966 |
/*! |
|
967 |
\class QZipWriter |
|
968 |
\internal |
|
969 |
\since 4.5 |
|
970 |
||
971 |
\brief the QZipWriter class provides a way to create a new zip archive. |
|
972 |
||
973 |
QZipWriter can be used to create a zip archive containing any number of files |
|
974 |
and directories. The files in the archive will be compressed in a way that is |
|
975 |
compatible with common zip reader applications. |
|
976 |
*/ |
|
977 |
||
978 |
||
979 |
/*! |
|
980 |
Create a new zip archive that operates on the \a archive filename. The file will |
|
981 |
be opened with the \a mode. |
|
982 |
\sa isValid() |
|
983 |
*/ |
|
984 |
QZipWriter::QZipWriter(const QString &fileName, QIODevice::OpenMode mode) |
|
985 |
{ |
|
986 |
QScopedPointer<QFile> f(new QFile(fileName)); |
|
987 |
f->open(mode); |
|
988 |
QZipWriter::Status status; |
|
989 |
if (f->error() == QFile::NoError) |
|
990 |
status = QZipWriter::NoError; |
|
991 |
else { |
|
992 |
if (f->error() == QFile::WriteError) |
|
993 |
status = QZipWriter::FileWriteError; |
|
994 |
else if (f->error() == QFile::OpenError) |
|
995 |
status = QZipWriter::FileOpenError; |
|
996 |
else if (f->error() == QFile::PermissionsError) |
|
997 |
status = QZipWriter::FilePermissionsError; |
|
998 |
else |
|
999 |
status = QZipWriter::FileError; |
|
1000 |
} |
|
1001 |
||
1002 |
d = new QZipWriterPrivate(f.data(), /*ownDevice=*/true); |
|
1003 |
f.take(); |
|
1004 |
d->status = status; |
|
1005 |
} |
|
1006 |
||
1007 |
/*! |
|
1008 |
Create a new zip archive that operates on the archive found in \a device. |
|
1009 |
You have to open the device previous to calling the constructor and |
|
1010 |
only a device that is readable will be scanned for zip filecontent. |
|
1011 |
*/ |
|
1012 |
QZipWriter::QZipWriter(QIODevice *device) |
|
1013 |
: d(new QZipWriterPrivate(device, /*ownDevice=*/false)) |
|
1014 |
{ |
|
1015 |
Q_ASSERT(device); |
|
1016 |
} |
|
1017 |
||
1018 |
QZipWriter::~QZipWriter() |
|
1019 |
{ |
|
1020 |
close(); |
|
1021 |
delete d; |
|
1022 |
} |
|
1023 |
||
1024 |
/*! |
|
1025 |
Returns true if the user can write to the archive; otherwise returns false. |
|
1026 |
*/ |
|
1027 |
bool QZipWriter::isWritable() const |
|
1028 |
{ |
|
1029 |
return d->device->isWritable(); |
|
1030 |
} |
|
1031 |
||
1032 |
/*! |
|
1033 |
Returns true if the file exists; otherwise returns false. |
|
1034 |
*/ |
|
1035 |
bool QZipWriter::exists() const |
|
1036 |
{ |
|
1037 |
QFile *f = qobject_cast<QFile*> (d->device); |
|
1038 |
if (f == 0) |
|
1039 |
return true; |
|
1040 |
return f->exists(); |
|
1041 |
} |
|
1042 |
||
1043 |
/*! |
|
1044 |
\enum QZipWriter::Status |
|
1045 |
||
1046 |
The following status values are possible: |
|
1047 |
||
1048 |
\value NoError No error occurred. |
|
1049 |
\value FileWriteError An error occurred when writing to the device. |
|
1050 |
\value FileOpenError The file could not be opened. |
|
1051 |
\value FilePermissionsError The file could not be accessed. |
|
1052 |
\value FileError Another file error occurred. |
|
1053 |
*/ |
|
1054 |
||
1055 |
/*! |
|
1056 |
Returns a status code indicating the first error that was met by QZipWriter, |
|
1057 |
or QZipWriter::NoError if no error occurred. |
|
1058 |
*/ |
|
1059 |
QZipWriter::Status QZipWriter::status() const |
|
1060 |
{ |
|
1061 |
return d->status; |
|
1062 |
} |
|
1063 |
||
1064 |
/*! |
|
1065 |
\enum QZipWriter::CompressionPolicy |
|
1066 |
||
1067 |
\value AlwaysCompress A file that is added is compressed. |
|
1068 |
\value NeverCompress A file that is added will be stored without changes. |
|
1069 |
\value AutoCompress A file that is added will be compressed only if that will give a smaller file. |
|
1070 |
*/ |
|
1071 |
||
1072 |
/*! |
|
1073 |
Sets the policy for compressing newly added files to the new \a policy. |
|
1074 |
||
1075 |
\note the default policy is AlwaysCompress |
|
1076 |
||
1077 |
\sa compressionPolicy() |
|
1078 |
\sa addFile() |
|
1079 |
*/ |
|
1080 |
void QZipWriter::setCompressionPolicy(CompressionPolicy policy) |
|
1081 |
{ |
|
1082 |
d->compressionPolicy = policy; |
|
1083 |
} |
|
1084 |
||
1085 |
/*! |
|
1086 |
Returns the currently set compression policy. |
|
1087 |
\sa setCompressionPolicy() |
|
1088 |
\sa addFile() |
|
1089 |
*/ |
|
1090 |
QZipWriter::CompressionPolicy QZipWriter::compressionPolicy() const |
|
1091 |
{ |
|
1092 |
return d->compressionPolicy; |
|
1093 |
} |
|
1094 |
||
1095 |
/*! |
|
1096 |
Sets the permissions that will be used for newly added files. |
|
1097 |
||
1098 |
\note the default permissions are QFile::ReadOwner | QFile::WriteOwner. |
|
1099 |
||
1100 |
\sa creationPermissions() |
|
1101 |
\sa addFile() |
|
1102 |
*/ |
|
1103 |
void QZipWriter::setCreationPermissions(QFile::Permissions permissions) |
|
1104 |
{ |
|
1105 |
d->permissions = permissions; |
|
1106 |
} |
|
1107 |
||
1108 |
/*! |
|
1109 |
Returns the currently set creation permissions. |
|
1110 |
||
1111 |
\sa setCreationPermissions() |
|
1112 |
\sa addFile() |
|
1113 |
*/ |
|
1114 |
QFile::Permissions QZipWriter::creationPermissions() const |
|
1115 |
{ |
|
1116 |
return d->permissions; |
|
1117 |
} |
|
1118 |
||
1119 |
/*! |
|
1120 |
Add a file to the archive with \a data as the file contents. |
|
1121 |
The file will be stored in the archive using the \a fileName which |
|
1122 |
includes the full path in the archive. |
|
1123 |
||
1124 |
The new file will get the file permissions based on the current |
|
1125 |
creationPermissions and it will be compressed using the zip compression |
|
1126 |
based on the current compression policy. |
|
1127 |
||
1128 |
\sa setCreationPermissions() |
|
1129 |
\sa setCompressionPolicy() |
|
1130 |
*/ |
|
1131 |
void QZipWriter::addFile(const QString &fileName, const QByteArray &data) |
|
1132 |
{ |
|
1133 |
d->addEntry(QZipWriterPrivate::File, fileName, data); |
|
1134 |
} |
|
1135 |
||
1136 |
/*! |
|
1137 |
Add a file to the archive with \a device as the source of the contents. |
|
1138 |
The contents returned from QIODevice::readAll() will be used as the |
|
1139 |
filedata. |
|
1140 |
The file will be stored in the archive using the \a fileName which |
|
1141 |
includes the full path in the archive. |
|
1142 |
*/ |
|
1143 |
void QZipWriter::addFile(const QString &fileName, QIODevice *device) |
|
1144 |
{ |
|
1145 |
Q_ASSERT(device); |
|
1146 |
QIODevice::OpenMode mode = device->openMode(); |
|
1147 |
bool opened = false; |
|
1148 |
if ((mode & QIODevice::ReadOnly) == 0) { |
|
1149 |
opened = true; |
|
1150 |
if (! device->open(QIODevice::ReadOnly)) { |
|
1151 |
d->status = FileOpenError; |
|
1152 |
return; |
|
1153 |
} |
|
1154 |
} |
|
1155 |
d->addEntry(QZipWriterPrivate::File, fileName, device->readAll()); |
|
1156 |
if (opened) |
|
1157 |
device->close(); |
|
1158 |
} |
|
1159 |
||
1160 |
/*! |
|
1161 |
Create a new directory in the archive with the specified \a dirName and |
|
1162 |
the \a permissions; |
|
1163 |
*/ |
|
1164 |
void QZipWriter::addDirectory(const QString &dirName) |
|
1165 |
{ |
|
1166 |
QString name = dirName; |
|
1167 |
// separator is mandatory |
|
1168 |
if (!name.endsWith(QDir::separator())) |
|
1169 |
name.append(QDir::separator()); |
|
1170 |
d->addEntry(QZipWriterPrivate::Directory, name, QByteArray()); |
|
1171 |
} |
|
1172 |
||
1173 |
/*! |
|
1174 |
Create a new symbolic link in the archive with the specified \a dirName |
|
1175 |
and the \a permissions; |
|
1176 |
A symbolic link contains the destination (relative) path and name. |
|
1177 |
*/ |
|
1178 |
void QZipWriter::addSymLink(const QString &fileName, const QString &destination) |
|
1179 |
{ |
|
1180 |
d->addEntry(QZipWriterPrivate::Symlink, fileName, QFile::encodeName(destination)); |
|
1181 |
} |
|
1182 |
||
1183 |
/*! |
|
1184 |
Closes the zip file. |
|
1185 |
*/ |
|
1186 |
void QZipWriter::close() |
|
1187 |
{ |
|
1188 |
if (!(d->device->openMode() & QIODevice::WriteOnly)) { |
|
1189 |
d->device->close(); |
|
1190 |
return; |
|
1191 |
} |
|
1192 |
||
1193 |
//qDebug("QZip::close writing directory, %d entries", d->fileHeaders.size()); |
|
1194 |
d->device->seek(d->start_of_directory); |
|
1195 |
// write new directory |
|
1196 |
for (int i = 0; i < d->fileHeaders.size(); ++i) { |
|
1197 |
const FileHeader &header = d->fileHeaders.at(i); |
|
1198 |
d->device->write((const char *)&header.h, sizeof(CentralFileHeader)); |
|
1199 |
d->device->write(header.file_name); |
|
1200 |
d->device->write(header.extra_field); |
|
1201 |
d->device->write(header.file_comment); |
|
1202 |
} |
|
1203 |
int dir_size = d->device->pos() - d->start_of_directory; |
|
1204 |
// write end of directory |
|
1205 |
EndOfDirectory eod; |
|
1206 |
memset(&eod, 0, sizeof(EndOfDirectory)); |
|
1207 |
writeUInt(eod.signature, 0x06054b50); |
|
1208 |
//uchar this_disk[2]; |
|
1209 |
//uchar start_of_directory_disk[2]; |
|
1210 |
writeUShort(eod.num_dir_entries_this_disk, d->fileHeaders.size()); |
|
1211 |
writeUShort(eod.num_dir_entries, d->fileHeaders.size()); |
|
1212 |
writeUInt(eod.directory_size, dir_size); |
|
1213 |
writeUInt(eod.dir_start_offset, d->start_of_directory); |
|
1214 |
writeUShort(eod.comment_length, d->comment.length()); |
|
1215 |
||
1216 |
d->device->write((const char *)&eod, sizeof(EndOfDirectory)); |
|
1217 |
d->device->write(d->comment); |
|
1218 |
d->device->close(); |
|
1219 |
} |
|
1220 |
||
1221 |
QT_END_NAMESPACE |
|
1222 |
||
1223 |
#endif // QT_NO_TEXTODFWRITER |