1 | /****************************************************************************
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2 | **
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3 | ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
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4 | ** Contact: Qt Software Information ([email protected])
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5 | **
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6 | ** This file is part of the QtGui module of the Qt Toolkit.
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7 | **
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8 | ** $QT_BEGIN_LICENSE:LGPL$
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9 | ** Commercial Usage
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10 | ** Licensees holding valid Qt Commercial licenses may use this file in
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11 | ** accordance with the Qt Commercial License Agreement provided with the
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12 | ** Software or, alternatively, in accordance with the terms contained in
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13 | ** a written agreement between you and Nokia.
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14 | **
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15 | ** GNU Lesser General Public License Usage
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16 | ** Alternatively, this file may be used under the terms of the GNU Lesser
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17 | ** General Public License version 2.1 as published by the Free Software
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18 | ** Foundation and appearing in the file LICENSE.LGPL included in the
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19 | ** packaging of this file. Please review the following information to
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20 | ** ensure the GNU Lesser General Public License version 2.1 requirements
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21 | ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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22 | **
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23 | ** In addition, as a special exception, Nokia gives you certain
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24 | ** additional rights. These rights are described in the Nokia Qt LGPL
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25 | ** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
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26 | ** package.
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27 | **
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28 | ** GNU General Public License Usage
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29 | ** Alternatively, this file may be used under the terms of the GNU
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30 | ** General Public License version 3.0 as published by the Free Software
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31 | ** Foundation and appearing in the file LICENSE.GPL included in the
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32 | ** packaging of this file. Please review the following information to
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33 | ** ensure the GNU General Public License version 3.0 requirements will be
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34 | ** met: http://www.gnu.org/copyleft/gpl.html.
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35 | **
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36 | ** If you are unsure which license is appropriate for your use, please
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37 | ** contact the sales department at [email protected].
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38 | ** $QT_END_LICENSE$
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39 | **
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40 | ****************************************************************************/
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41 |
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42 | #include <qglobal.h>
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43 |
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44 | #ifndef QT_NO_TEXTODFWRITER
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45 |
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46 | #include "qzipreader_p.h"
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47 | #include "qzipwriter_p.h"
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48 | #include <qdatetime.h>
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49 | #include <qplatformdefs.h>
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50 | #include <qendian.h>
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51 | #include <qdebug.h>
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52 | #include <qdir.h>
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53 |
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54 | #include <zlib.h>
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55 |
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56 | #if defined(Q_OS_WIN)
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57 | #undef S_IFREG
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58 | #define S_IFREG 0100000
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59 | # define S_ISDIR(x) ((x) & 0040000) > 0
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60 | # define S_ISREG(x) ((x) & 0170000) == S_IFREG
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61 | # define S_IFLNK 020000
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62 | # define S_ISLNK(x) ((x) & S_IFLNK) > 0
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63 | # define S_IRUSR 0400
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64 | # define S_IWUSR 0200
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65 | # define S_IXUSR 0100
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66 | # define S_IRGRP 0040
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67 | # define S_IWGRP 0020
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68 | # define S_IXGRP 0010
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69 | # define S_IROTH 0004
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70 | # define S_IWOTH 0002
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71 | # define S_IXOTH 0001
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72 | #endif
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73 |
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74 | #if 0
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75 | #define ZDEBUG qDebug
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76 | #else
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77 | #define ZDEBUG if (0) qDebug
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78 | #endif
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79 |
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80 | QT_BEGIN_NAMESPACE
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81 |
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82 | static inline uint readUInt(const uchar *data)
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83 | {
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84 | return (data[0]) + (data[1]<<8) + (data[2]<<16) + (data[3]<<24);
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85 | }
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86 |
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87 | static inline ushort readUShort(const uchar *data)
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88 | {
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89 | return (data[0]) + (data[1]<<8);
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90 | }
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91 |
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92 | static inline void writeUInt(uchar *data, uint i)
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93 | {
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94 | data[0] = i & 0xff;
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95 | data[1] = (i>>8) & 0xff;
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96 | data[2] = (i>>16) & 0xff;
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97 | data[3] = (i>>24) & 0xff;
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98 | }
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99 |
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100 | static inline void writeUShort(uchar *data, ushort i)
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101 | {
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102 | data[0] = i & 0xff;
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103 | data[1] = (i>>8) & 0xff;
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104 | }
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105 |
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106 | static inline void copyUInt(uchar *dest, const uchar *src)
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107 | {
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108 | dest[0] = src[0];
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109 | dest[1] = src[1];
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110 | dest[2] = src[2];
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111 | dest[3] = src[3];
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112 | }
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113 |
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114 | static inline void copyUShort(uchar *dest, const uchar *src)
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115 | {
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116 | dest[0] = src[0];
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117 | dest[1] = src[1];
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118 | }
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119 |
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120 | static void writeMSDosDate(uchar *dest, const QDateTime& dt)
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121 | {
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122 | if (dt.isValid()) {
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123 | quint16 time =
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124 | (dt.time().hour() << 11) // 5 bit hour
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125 | | (dt.time().minute() << 5) // 6 bit minute
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126 | | (dt.time().second() >> 1); // 5 bit double seconds
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127 |
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128 | dest[0] = time & 0xff;
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129 | dest[1] = time >> 8;
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130 |
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131 | quint16 date =
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132 | ((dt.date().year() - 1980) << 9) // 7 bit year 1980-based
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133 | | (dt.date().month() << 5) // 4 bit month
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134 | | (dt.date().day()); // 5 bit day
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135 |
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136 | dest[2] = char(date);
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137 | dest[3] = char(date >> 8);
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138 | } else {
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139 | dest[0] = 0;
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140 | dest[1] = 0;
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141 | dest[2] = 0;
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142 | dest[3] = 0;
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143 | }
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144 | }
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145 |
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146 | static quint32 permissionsToMode(QFile::Permissions perms)
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147 | {
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148 | quint32 mode = 0;
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149 | if (perms & QFile::ReadOwner)
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150 | mode |= S_IRUSR;
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151 | if (perms & QFile::WriteOwner)
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152 | mode |= S_IWUSR;
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153 | if (perms & QFile::ExeOwner)
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154 | mode |= S_IXUSR;
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155 | if (perms & QFile::ReadUser)
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156 | mode |= S_IRUSR;
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157 | if (perms & QFile::WriteUser)
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158 | mode |= S_IWUSR;
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159 | if (perms & QFile::ExeUser)
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160 | mode |= S_IXUSR;
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161 | if (perms & QFile::ReadGroup)
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162 | mode |= S_IRGRP;
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163 | if (perms & QFile::WriteGroup)
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164 | mode |= S_IWGRP;
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165 | if (perms & QFile::ExeGroup)
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166 | mode |= S_IXGRP;
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167 | if (perms & QFile::ReadOther)
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168 | mode |= S_IROTH;
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169 | if (perms & QFile::WriteOther)
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170 | mode |= S_IWOTH;
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171 | if (perms & QFile::ExeOther)
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172 | mode |= S_IXOTH;
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173 | return mode;
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174 | }
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175 |
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176 | static int inflate(Bytef *dest, ulong *destLen, const Bytef *source, ulong sourceLen)
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177 | {
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178 | z_stream stream;
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179 | int err;
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180 |
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181 | stream.next_in = (Bytef*)source;
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182 | stream.avail_in = (uInt)sourceLen;
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183 | if ((uLong)stream.avail_in != sourceLen)
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184 | return Z_BUF_ERROR;
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185 |
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186 | stream.next_out = dest;
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187 | stream.avail_out = (uInt)*destLen;
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188 | if ((uLong)stream.avail_out != *destLen)
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189 | return Z_BUF_ERROR;
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190 |
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191 | stream.zalloc = (alloc_func)0;
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192 | stream.zfree = (free_func)0;
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193 |
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194 | err = inflateInit2(&stream, -MAX_WBITS);
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195 | if (err != Z_OK)
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196 | return err;
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197 |
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198 | err = inflate(&stream, Z_FINISH);
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199 | if (err != Z_STREAM_END) {
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200 | inflateEnd(&stream);
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201 | if (err == Z_NEED_DICT || (err == Z_BUF_ERROR && stream.avail_in == 0))
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202 | return Z_DATA_ERROR;
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203 | return err;
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204 | }
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205 | *destLen = stream.total_out;
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206 |
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207 | err = inflateEnd(&stream);
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208 | return err;
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209 | }
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210 |
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211 | static int deflate (Bytef *dest, ulong *destLen, const Bytef *source, ulong sourceLen)
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212 | {
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213 | z_stream stream;
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214 | int err;
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215 |
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216 | stream.next_in = (Bytef*)source;
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217 | stream.avail_in = (uInt)sourceLen;
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218 | stream.next_out = dest;
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219 | stream.avail_out = (uInt)*destLen;
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220 | if ((uLong)stream.avail_out != *destLen) return Z_BUF_ERROR;
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221 |
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222 | stream.zalloc = (alloc_func)0;
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223 | stream.zfree = (free_func)0;
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224 | stream.opaque = (voidpf)0;
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225 |
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226 | err = deflateInit2(&stream, Z_DEFAULT_COMPRESSION, Z_DEFLATED, -MAX_WBITS, 8, Z_DEFAULT_STRATEGY);
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227 | if (err != Z_OK) return err;
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228 |
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229 | err = deflate(&stream, Z_FINISH);
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230 | if (err != Z_STREAM_END) {
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231 | deflateEnd(&stream);
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232 | return err == Z_OK ? Z_BUF_ERROR : err;
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233 | }
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234 | *destLen = stream.total_out;
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235 |
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236 | err = deflateEnd(&stream);
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237 | return err;
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238 | }
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239 |
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240 | static QFile::Permissions modeToPermissions(quint32 mode)
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241 | {
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242 | QFile::Permissions ret;
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243 | if (mode & S_IRUSR)
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244 | ret |= QFile::ReadOwner;
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245 | if (mode & S_IWUSR)
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246 | ret |= QFile::WriteOwner;
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247 | if (mode & S_IXUSR)
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248 | ret |= QFile::ExeOwner;
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249 | if (mode & S_IRUSR)
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250 | ret |= QFile::ReadUser;
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251 | if (mode & S_IWUSR)
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252 | ret |= QFile::WriteUser;
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253 | if (mode & S_IXUSR)
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254 | ret |= QFile::ExeUser;
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255 | if (mode & S_IRGRP)
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256 | ret |= QFile::ReadGroup;
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257 | if (mode & S_IWGRP)
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258 | ret |= QFile::WriteGroup;
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259 | if (mode & S_IXGRP)
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260 | ret |= QFile::ExeGroup;
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261 | if (mode & S_IROTH)
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262 | ret |= QFile::ReadOther;
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263 | if (mode & S_IWOTH)
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264 | ret |= QFile::WriteOther;
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265 | if (mode & S_IXOTH)
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266 | ret |= QFile::ExeOther;
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267 | return ret;
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268 | }
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269 |
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270 | struct LocalFileHeader
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271 | {
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272 | uchar signature[4]; // 0x04034b50
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273 | uchar version_needed[2];
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274 | uchar general_purpose_bits[2];
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275 | uchar compression_method[2];
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276 | uchar last_mod_file[4];
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277 | uchar crc_32[4];
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278 | uchar compressed_size[4];
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279 | uchar uncompressed_size[4];
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280 | uchar file_name_length[2];
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281 | uchar extra_field_length[2];
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282 | };
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283 |
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284 | struct DataDescriptor
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285 | {
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286 | uchar crc_32[4];
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287 | uchar compressed_size[4];
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288 | uchar uncompressed_size[4];
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289 | };
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290 |
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291 | struct CentralFileHeader
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292 | {
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293 | uchar signature[4]; // 0x02014b50
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294 | uchar version_made[2];
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295 | uchar version_needed[2];
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296 | uchar general_purpose_bits[2];
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297 | uchar compression_method[2];
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298 | uchar last_mod_file[4];
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299 | uchar crc_32[4];
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300 | uchar compressed_size[4];
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301 | uchar uncompressed_size[4];
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302 | uchar file_name_length[2];
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303 | uchar extra_field_length[2];
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304 | uchar file_comment_length[2];
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305 | uchar disk_start[2];
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306 | uchar internal_file_attributes[2];
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307 | uchar external_file_attributes[4];
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308 | uchar offset_local_header[4];
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309 | LocalFileHeader toLocalHeader() const;
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310 | };
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311 |
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312 | struct EndOfDirectory
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313 | {
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314 | uchar signature[4]; // 0x06054b50
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315 | uchar this_disk[2];
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316 | uchar start_of_directory_disk[2];
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317 | uchar num_dir_entries_this_disk[2];
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318 | uchar num_dir_entries[2];
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319 | uchar directory_size[4];
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320 | uchar dir_start_offset[4];
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321 | uchar comment_length[2];
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322 | };
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323 |
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324 | struct FileHeader
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325 | {
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326 | CentralFileHeader h;
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327 | QByteArray file_name;
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328 | QByteArray extra_field;
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329 | QByteArray file_comment;
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330 | };
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331 |
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332 | QZipReader::FileInfo::FileInfo()
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333 | : isDir(false), isFile(true), isSymLink(false), crc32(0), size(0)
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334 | {
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335 | }
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336 |
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337 | QZipReader::FileInfo::~FileInfo()
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338 | {
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339 | }
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340 |
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341 | QZipReader::FileInfo::FileInfo(const FileInfo &other)
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342 | {
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343 | operator=(other);
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344 | }
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345 |
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346 | QZipReader::FileInfo& QZipReader::FileInfo::operator=(const FileInfo &other)
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347 | {
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348 | filePath = other.filePath;
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349 | isDir = other.isDir;
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350 | isFile = other.isFile;
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351 | isSymLink = other.isSymLink;
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352 | permissions = other.permissions;
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353 | crc32 = other.crc32;
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354 | size = other.size;
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355 | return *this;
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356 | }
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357 |
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358 | class QZipPrivate
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359 | {
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360 | public:
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361 | QZipPrivate(QIODevice *device, bool ownDev)
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362 | : device(device), ownDevice(ownDev), dirtyFileTree(true), start_of_directory(0)
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363 | {
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364 | }
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365 |
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366 | ~QZipPrivate()
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367 | {
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368 | if (ownDevice)
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369 | delete device;
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370 | }
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371 |
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372 | void fillFileInfo(int index, QZipReader::FileInfo &fileInfo) const;
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373 |
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374 | QIODevice *device;
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375 | bool ownDevice;
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376 | bool dirtyFileTree;
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377 | QList<FileHeader> fileHeaders;
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378 | QByteArray comment;
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379 | uint start_of_directory;
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380 | };
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381 |
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382 | void QZipPrivate::fillFileInfo(int index, QZipReader::FileInfo &fileInfo) const
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383 | {
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384 | FileHeader header = fileHeaders.at(index);
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385 | fileInfo.filePath = QString::fromLocal8Bit(header.file_name);
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386 | const quint32 mode = (qFromLittleEndian<quint32>(&header.h.external_file_attributes[0]) >> 16) & 0xFFFF;
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387 | fileInfo.isDir = S_ISDIR(mode);
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388 | fileInfo.isFile = S_ISREG(mode);
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389 | fileInfo.isSymLink = S_ISLNK(mode);
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390 | fileInfo.permissions = modeToPermissions(mode);
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391 | fileInfo.crc32 = readUInt(header.h.crc_32);
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392 | fileInfo.size = readUInt(header.h.uncompressed_size);
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393 | }
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394 |
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395 | class QZipReaderPrivate : public QZipPrivate
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396 | {
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397 | public:
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398 | QZipReaderPrivate(QIODevice *device, bool ownDev)
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399 | : QZipPrivate(device, ownDev), status(QZipReader::NoError)
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400 | {
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401 | }
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402 |
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403 | void scanFiles();
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404 |
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405 | QZipReader::Status status;
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406 | };
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407 |
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408 | class QZipWriterPrivate : public QZipPrivate
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409 | {
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410 | public:
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411 | QZipWriterPrivate(QIODevice *device, bool ownDev)
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412 | : QZipPrivate(device, ownDev),
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413 | status(QZipWriter::NoError),
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414 | permissions(QFile::ReadOwner | QFile::WriteOwner),
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415 | compressionPolicy(QZipWriter::AlwaysCompress)
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416 | {
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417 | }
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418 |
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419 | QZipWriter::Status status;
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420 | QFile::Permissions permissions;
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421 | QZipWriter::CompressionPolicy compressionPolicy;
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422 |
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423 | enum EntryType { Directory, File, Symlink };
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424 |
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425 | void addEntry(EntryType type, const QString &fileName, const QByteArray &contents);
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426 | };
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427 |
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428 | LocalFileHeader CentralFileHeader::toLocalHeader() const
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429 | {
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430 | LocalFileHeader h;
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431 | writeUInt(h.signature, 0x04034b50);
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432 | copyUShort(h.version_needed, version_needed);
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433 | copyUShort(h.general_purpose_bits, general_purpose_bits);
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434 | copyUShort(h.compression_method, compression_method);
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435 | copyUInt(h.last_mod_file, last_mod_file);
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436 | copyUInt(h.crc_32, crc_32);
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437 | copyUInt(h.compressed_size, compressed_size);
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438 | copyUInt(h.uncompressed_size, uncompressed_size);
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439 | copyUShort(h.file_name_length, file_name_length);
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440 | copyUShort(h.extra_field_length, extra_field_length);
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441 | return h;
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442 | }
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443 |
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444 | void QZipReaderPrivate::scanFiles()
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445 | {
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446 | if (!dirtyFileTree)
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447 | return;
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448 |
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449 | if (! (device->isOpen() || device->open(QIODevice::ReadOnly))) {
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450 | status = QZipReader::FileOpenError;
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451 | return;
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452 | }
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453 |
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454 | if ((device->openMode() & QIODevice::ReadOnly) == 0) { // only read the index from readable files.
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455 | status = QZipReader::FileReadError;
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456 | return;
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457 | }
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458 |
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459 | dirtyFileTree = false;
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460 | uchar tmp[4];
|
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461 | device->read((char *)tmp, 4);
|
---|
462 | if (readUInt(tmp) != 0x04034b50) {
|
---|
463 | qWarning() << "QZip: not a zip file!";
|
---|
464 | return;
|
---|
465 | }
|
---|
466 |
|
---|
467 | // find EndOfDirectory header
|
---|
468 | int i = 0;
|
---|
469 | int start_of_directory = -1;
|
---|
470 | int num_dir_entries = 0;
|
---|
471 | EndOfDirectory eod;
|
---|
472 | while (start_of_directory == -1) {
|
---|
473 | int pos = device->size() - sizeof(EndOfDirectory) - i;
|
---|
474 | if (pos < 0 || i > 65535) {
|
---|
475 | qWarning() << "QZip: EndOfDirectory not found";
|
---|
476 | return;
|
---|
477 | }
|
---|
478 |
|
---|
479 | device->seek(pos);
|
---|
480 | device->read((char *)&eod, sizeof(EndOfDirectory));
|
---|
481 | if (readUInt(eod.signature) == 0x06054b50)
|
---|
482 | break;
|
---|
483 | ++i;
|
---|
484 | }
|
---|
485 |
|
---|
486 | // have the eod
|
---|
487 | start_of_directory = readUInt(eod.dir_start_offset);
|
---|
488 | num_dir_entries = readUShort(eod.num_dir_entries);
|
---|
489 | ZDEBUG("start_of_directory at %d, num_dir_entries=%d", start_of_directory, num_dir_entries);
|
---|
490 | int comment_length = readUShort(eod.comment_length);
|
---|
491 | if (comment_length != i)
|
---|
492 | qWarning() << "QZip: failed to parse zip file.";
|
---|
493 | comment = device->read(qMin(comment_length, i));
|
---|
494 |
|
---|
495 |
|
---|
496 | device->seek(start_of_directory);
|
---|
497 | for (i = 0; i < num_dir_entries; ++i) {
|
---|
498 | FileHeader header;
|
---|
499 | int read = device->read((char *) &header.h, sizeof(CentralFileHeader));
|
---|
500 | if (read < (int)sizeof(CentralFileHeader)) {
|
---|
501 | qWarning() << "QZip: Failed to read complete header, index may be incomplete";
|
---|
502 | break;
|
---|
503 | }
|
---|
504 | if (readUInt(header.h.signature) != 0x02014b50) {
|
---|
505 | qWarning() << "QZip: invalid header signature, index may be incomplete";
|
---|
506 | break;
|
---|
507 | }
|
---|
508 |
|
---|
509 | int l = readUShort(header.h.file_name_length);
|
---|
510 | header.file_name = device->read(l);
|
---|
511 | if (header.file_name.length() != l) {
|
---|
512 | qWarning() << "QZip: Failed to read filename from zip index, index may be incomplete";
|
---|
513 | break;
|
---|
514 | }
|
---|
515 | l = readUShort(header.h.extra_field_length);
|
---|
516 | header.extra_field = device->read(l);
|
---|
517 | if (header.extra_field.length() != l) {
|
---|
518 | qWarning() << "QZip: Failed to read extra field in zip file, skipping file, index may be incomplete";
|
---|
519 | break;
|
---|
520 | }
|
---|
521 | l = readUShort(header.h.file_comment_length);
|
---|
522 | header.file_comment = device->read(l);
|
---|
523 | if (header.file_comment.length() != l) {
|
---|
524 | qWarning() << "QZip: Failed to read read file comment, index may be incomplete";
|
---|
525 | break;
|
---|
526 | }
|
---|
527 |
|
---|
528 | ZDEBUG("found file '%s'", header.file_name.data());
|
---|
529 | fileHeaders.append(header);
|
---|
530 | }
|
---|
531 | }
|
---|
532 |
|
---|
533 | void QZipWriterPrivate::addEntry(EntryType type, const QString &fileName, const QByteArray &contents/*, QFile::Permissions permissions, QZip::Method m*/)
|
---|
534 | {
|
---|
535 | #ifndef NDEBUG
|
---|
536 | static const char *entryTypes[] = {
|
---|
537 | "directory",
|
---|
538 | "file ",
|
---|
539 | "symlink " };
|
---|
540 | ZDEBUG() << "adding" << entryTypes[type] <<":" << fileName.toUtf8().data() << (type == 2 ? (" -> " + contents).constData() : "");
|
---|
541 | #endif
|
---|
542 |
|
---|
543 | if (! (device->isOpen() || device->open(QIODevice::WriteOnly))) {
|
---|
544 | status = QZipWriter::FileOpenError;
|
---|
545 | return;
|
---|
546 | }
|
---|
547 | device->seek(start_of_directory);
|
---|
548 |
|
---|
549 | // don't compress small files
|
---|
550 | QZipWriter::CompressionPolicy compression = compressionPolicy;
|
---|
551 | if (compressionPolicy == QZipWriter::AutoCompress) {
|
---|
552 | if (contents.length() < 64)
|
---|
553 | compression = QZipWriter::NeverCompress;
|
---|
554 | else
|
---|
555 | compression = QZipWriter::AlwaysCompress;
|
---|
556 | }
|
---|
557 |
|
---|
558 | FileHeader header;
|
---|
559 | memset(&header.h, 0, sizeof(CentralFileHeader));
|
---|
560 | writeUInt(header.h.signature, 0x02014b50);
|
---|
561 |
|
---|
562 | writeUShort(header.h.version_needed, 0x14);
|
---|
563 | writeUInt(header.h.uncompressed_size, contents.length());
|
---|
564 | writeMSDosDate(header.h.last_mod_file, QDateTime::currentDateTime());
|
---|
565 | QByteArray data = contents;
|
---|
566 | if (compression == QZipWriter::AlwaysCompress) {
|
---|
567 | writeUShort(header.h.compression_method, 8);
|
---|
568 |
|
---|
569 | ulong len = contents.length();
|
---|
570 | // shamelessly copied form zlib
|
---|
571 | len += (len >> 12) + (len >> 14) + 11;
|
---|
572 | int res;
|
---|
573 | do {
|
---|
574 | data.resize(len);
|
---|
575 | res = deflate((uchar*)data.data(), &len, (const uchar*)contents.constData(), contents.length());
|
---|
576 |
|
---|
577 | switch (res) {
|
---|
578 | case Z_OK:
|
---|
579 | data.resize(len);
|
---|
580 | break;
|
---|
581 | case Z_MEM_ERROR:
|
---|
582 | qWarning("QZip: Z_MEM_ERROR: Not enough memory to compress file, skipping");
|
---|
583 | data.resize(0);
|
---|
584 | break;
|
---|
585 | case Z_BUF_ERROR:
|
---|
586 | len *= 2;
|
---|
587 | break;
|
---|
588 | }
|
---|
589 | } while (res == Z_BUF_ERROR);
|
---|
590 | }
|
---|
591 | // TODO add a check if data.length() > contents.length(). Then try to store the original and revert the compression method to be uncompressed
|
---|
592 | writeUInt(header.h.compressed_size, data.length());
|
---|
593 | uint crc_32 = ::crc32(0, 0, 0);
|
---|
594 | crc_32 = ::crc32(crc_32, (const uchar *)contents.constData(), contents.length());
|
---|
595 | writeUInt(header.h.crc_32, crc_32);
|
---|
596 |
|
---|
597 | header.file_name = fileName.toLocal8Bit();
|
---|
598 | if (header.file_name.size() > 0xffff) {
|
---|
599 | qWarning("QZip: Filename too long, chopping it to 65535 characters");
|
---|
600 | header.file_name = header.file_name.left(0xffff);
|
---|
601 | }
|
---|
602 | writeUShort(header.h.file_name_length, header.file_name.length());
|
---|
603 | //h.extra_field_length[2];
|
---|
604 |
|
---|
605 | writeUShort(header.h.version_made, 3 << 8);
|
---|
606 | //uchar internal_file_attributes[2];
|
---|
607 | //uchar external_file_attributes[4];
|
---|
608 | quint32 mode = permissionsToMode(permissions);
|
---|
609 | switch (type) {
|
---|
610 | case File: mode |= S_IFREG; break;
|
---|
611 | case Directory: mode |= S_IFDIR; break;
|
---|
612 | case Symlink: mode |= S_IFLNK; break;
|
---|
613 | }
|
---|
614 | writeUInt(header.h.external_file_attributes, mode << 16);
|
---|
615 | writeUInt(header.h.offset_local_header, start_of_directory);
|
---|
616 |
|
---|
617 |
|
---|
618 | fileHeaders.append(header);
|
---|
619 |
|
---|
620 | LocalFileHeader h = header.h.toLocalHeader();
|
---|
621 | device->write((const char *)&h, sizeof(LocalFileHeader));
|
---|
622 | device->write(header.file_name);
|
---|
623 | device->write(data);
|
---|
624 | start_of_directory = device->pos();
|
---|
625 | dirtyFileTree = true;
|
---|
626 | }
|
---|
627 |
|
---|
628 | ////////////////////////////// Reader
|
---|
629 |
|
---|
630 | /*!
|
---|
631 | \class QZipReader::FileInfo
|
---|
632 | \internal
|
---|
633 | Represents one entry in the zip table of contents.
|
---|
634 | */
|
---|
635 |
|
---|
636 | /*!
|
---|
637 | \variable FileInfo::filePath
|
---|
638 | The full filepath inside the archive.
|
---|
639 | */
|
---|
640 |
|
---|
641 | /*!
|
---|
642 | \variable FileInfo::isDir
|
---|
643 | A boolean type indicating if the entry is a directory.
|
---|
644 | */
|
---|
645 |
|
---|
646 | /*!
|
---|
647 | \variable FileInfo::isFile
|
---|
648 | A boolean type, if it is one this entry is a file.
|
---|
649 | */
|
---|
650 |
|
---|
651 | /*!
|
---|
652 | \variable FileInfo::isSymLink
|
---|
653 | A boolean type, if it is one this entry is symbolic link.
|
---|
654 | */
|
---|
655 |
|
---|
656 | /*!
|
---|
657 | \variable FileInfo::permissions
|
---|
658 | A list of flags for the permissions of this entry.
|
---|
659 | */
|
---|
660 |
|
---|
661 | /*!
|
---|
662 | \variable FileInfo::crc32
|
---|
663 | The calculated checksum as a crc32 type.
|
---|
664 | */
|
---|
665 |
|
---|
666 | /*!
|
---|
667 | \variable FileInfo::size
|
---|
668 | The total size of the unpacked content.
|
---|
669 | */
|
---|
670 |
|
---|
671 | /*!
|
---|
672 | \variable FileInfo::d
|
---|
673 | \internal
|
---|
674 | private pointer.
|
---|
675 | */
|
---|
676 |
|
---|
677 | /*!
|
---|
678 | \class QZipReader
|
---|
679 | \internal
|
---|
680 | \since 4.5
|
---|
681 |
|
---|
682 | \brief the QZipReader class provides a way to inspect the contents of a zip
|
---|
683 | archive and extract individual files from it.
|
---|
684 |
|
---|
685 | QZipReader can be used to read a zip archive either from a file or from any
|
---|
686 | device. An in-memory QBuffer for instance. The reader can be used to read
|
---|
687 | which files are in the archive using fileInfoList() and entryInfoAt() but
|
---|
688 | also to extract individual files using fileData() or even to extract all
|
---|
689 | files in the archive using extractAll()
|
---|
690 | */
|
---|
691 |
|
---|
692 | /*!
|
---|
693 | Create a new zip archive that operates on the \a fileName. The file will be
|
---|
694 | opened with the \a mode.
|
---|
695 | */
|
---|
696 | QZipReader::QZipReader(const QString &archive, QIODevice::OpenMode mode)
|
---|
697 | {
|
---|
698 | QFile *f = new QFile(archive);
|
---|
699 | f->open(mode);
|
---|
700 | QZipReader::Status status;
|
---|
701 | if (f->error() == QFile::NoError)
|
---|
702 | status = NoError;
|
---|
703 | else {
|
---|
704 | if (f->error() == QFile::ReadError)
|
---|
705 | status = FileReadError;
|
---|
706 | else if (f->error() == QFile::OpenError)
|
---|
707 | status = FileOpenError;
|
---|
708 | else if (f->error() == QFile::PermissionsError)
|
---|
709 | status = FilePermissionsError;
|
---|
710 | else
|
---|
711 | status = FileError;
|
---|
712 | }
|
---|
713 |
|
---|
714 | d = new QZipReaderPrivate(f, /*ownDevice=*/true);
|
---|
715 | d->status = status;
|
---|
716 | }
|
---|
717 |
|
---|
718 | /*!
|
---|
719 | Create a new zip archive that operates on the archive found in \a device.
|
---|
720 | You have to open the device previous to calling the constructor and only a
|
---|
721 | device that is readable will be scanned for zip filecontent.
|
---|
722 | */
|
---|
723 | QZipReader::QZipReader(QIODevice *device)
|
---|
724 | : d(new QZipReaderPrivate(device, /*ownDevice=*/false))
|
---|
725 | {
|
---|
726 | Q_ASSERT(device);
|
---|
727 | }
|
---|
728 |
|
---|
729 | /*!
|
---|
730 | Desctructor
|
---|
731 | */
|
---|
732 | QZipReader::~QZipReader()
|
---|
733 | {
|
---|
734 | close();
|
---|
735 | delete d;
|
---|
736 | }
|
---|
737 |
|
---|
738 | /*!
|
---|
739 | Returns true if the user can read the file; otherwise returns false.
|
---|
740 | */
|
---|
741 | bool QZipReader::isReadable() const
|
---|
742 | {
|
---|
743 | return d->device->isReadable();
|
---|
744 | }
|
---|
745 |
|
---|
746 | /*!
|
---|
747 | Returns true if the file exists; otherwise returns false.
|
---|
748 | */
|
---|
749 | bool QZipReader::exists() const
|
---|
750 | {
|
---|
751 | QFile *f = qobject_cast<QFile*> (d->device);
|
---|
752 | if (f == 0)
|
---|
753 | return true;
|
---|
754 | return f->exists();
|
---|
755 | }
|
---|
756 |
|
---|
757 | /*!
|
---|
758 | Returns the list of files the archive contains.
|
---|
759 | */
|
---|
760 | QList<QZipReader::FileInfo> QZipReader::fileInfoList() const
|
---|
761 | {
|
---|
762 | d->scanFiles();
|
---|
763 | QList<QZipReader::FileInfo> files;
|
---|
764 | for (int i = 0; d && i < d->fileHeaders.size(); ++i) {
|
---|
765 | QZipReader::FileInfo fi;
|
---|
766 | d->fillFileInfo(i, fi);
|
---|
767 | files.append(fi);
|
---|
768 | }
|
---|
769 | return files;
|
---|
770 |
|
---|
771 | }
|
---|
772 |
|
---|
773 | /*!
|
---|
774 | Return the number of items in the zip archive.
|
---|
775 | */
|
---|
776 | int QZipReader::count() const
|
---|
777 | {
|
---|
778 | d->scanFiles();
|
---|
779 | return d->fileHeaders.count();
|
---|
780 | }
|
---|
781 |
|
---|
782 | /*!
|
---|
783 | Returns a FileInfo of an entry in the zipfile.
|
---|
784 | The \a index is the index into the directoy listing of the zipfile.
|
---|
785 |
|
---|
786 | \sa fileInfoList()
|
---|
787 | */
|
---|
788 | QZipReader::FileInfo QZipReader::entryInfoAt(int index) const
|
---|
789 | {
|
---|
790 | d->scanFiles();
|
---|
791 | QZipReader::FileInfo fi;
|
---|
792 | d->fillFileInfo(index, fi);
|
---|
793 | return fi;
|
---|
794 | }
|
---|
795 |
|
---|
796 | /*!
|
---|
797 | Fetch the file contents from the zip archive and return the uncompressed bytes.
|
---|
798 | */
|
---|
799 | QByteArray QZipReader::fileData(const QString &fileName) const
|
---|
800 | {
|
---|
801 | d->scanFiles();
|
---|
802 | int i;
|
---|
803 | for (i = 0; i < d->fileHeaders.size(); ++i) {
|
---|
804 | if (QString::fromLocal8Bit(d->fileHeaders.at(i).file_name) == fileName)
|
---|
805 | break;
|
---|
806 | }
|
---|
807 | if (i == d->fileHeaders.size())
|
---|
808 | return QByteArray();
|
---|
809 |
|
---|
810 | FileHeader header = d->fileHeaders.at(i);
|
---|
811 |
|
---|
812 | int compressed_size = readUInt(header.h.compressed_size);
|
---|
813 | int uncompressed_size = readUInt(header.h.uncompressed_size);
|
---|
814 | int start = readUInt(header.h.offset_local_header);
|
---|
815 | //qDebug("uncompressing file %d: local header at %d", i, start);
|
---|
816 |
|
---|
817 | d->device->seek(start);
|
---|
818 | LocalFileHeader lh;
|
---|
819 | d->device->read((char *)&lh, sizeof(LocalFileHeader));
|
---|
820 | uint skip = readUShort(lh.file_name_length) + readUShort(lh.extra_field_length);
|
---|
821 | d->device->seek(d->device->pos() + skip);
|
---|
822 |
|
---|
823 | int compression_method = readUShort(lh.compression_method);
|
---|
824 | //qDebug("file=%s: compressed_size=%d, uncompressed_size=%d", fileName.toLocal8Bit().data(), compressed_size, uncompressed_size);
|
---|
825 |
|
---|
826 | //qDebug("file at %lld", d->device->pos());
|
---|
827 | QByteArray compressed = d->device->read(compressed_size);
|
---|
828 | if (compression_method == 0) {
|
---|
829 | // no compression
|
---|
830 | compressed.truncate(uncompressed_size);
|
---|
831 | return compressed;
|
---|
832 | } else if (compression_method == 8) {
|
---|
833 | // Deflate
|
---|
834 | //qDebug("compressed=%d", compressed.size());
|
---|
835 | compressed.truncate(compressed_size);
|
---|
836 | QByteArray baunzip;
|
---|
837 | ulong len = qMax(uncompressed_size, 1);
|
---|
838 | int res;
|
---|
839 | do {
|
---|
840 | baunzip.resize(len);
|
---|
841 | res = inflate((uchar*)baunzip.data(), &len,
|
---|
842 | (uchar*)compressed.constData(), compressed_size);
|
---|
843 |
|
---|
844 | switch (res) {
|
---|
845 | case Z_OK:
|
---|
846 | if ((int)len != baunzip.size())
|
---|
847 | baunzip.resize(len);
|
---|
848 | break;
|
---|
849 | case Z_MEM_ERROR:
|
---|
850 | qWarning("QZip: Z_MEM_ERROR: Not enough memory");
|
---|
851 | break;
|
---|
852 | case Z_BUF_ERROR:
|
---|
853 | len *= 2;
|
---|
854 | break;
|
---|
855 | case Z_DATA_ERROR:
|
---|
856 | qWarning("QZip: Z_DATA_ERROR: Input data is corrupted");
|
---|
857 | break;
|
---|
858 | }
|
---|
859 | } while (res == Z_BUF_ERROR);
|
---|
860 | return baunzip;
|
---|
861 | }
|
---|
862 | qWarning() << "QZip: Unknown compression method";
|
---|
863 | return QByteArray();
|
---|
864 | }
|
---|
865 |
|
---|
866 | /*!
|
---|
867 | Extracts the full contents of the zip file into \a destinationDir on
|
---|
868 | the local filesystem.
|
---|
869 | In case writing or linking a file fails, the extraction will be aborted.
|
---|
870 | */
|
---|
871 | bool QZipReader::extractAll(const QString &destinationDir) const
|
---|
872 | {
|
---|
873 | QDir baseDir(destinationDir);
|
---|
874 |
|
---|
875 | // create directories first
|
---|
876 | QList<FileInfo> allFiles = fileInfoList();
|
---|
877 | foreach (FileInfo fi, allFiles) {
|
---|
878 | const QString absPath = destinationDir + QDir::separator() + fi.filePath;
|
---|
879 | if (fi.isDir) {
|
---|
880 | if (!baseDir.mkpath(fi.filePath))
|
---|
881 | return false;
|
---|
882 | if (!QFile::setPermissions(absPath, fi.permissions))
|
---|
883 | return false;
|
---|
884 | }
|
---|
885 | }
|
---|
886 |
|
---|
887 | // set up symlinks
|
---|
888 | foreach (FileInfo fi, allFiles) {
|
---|
889 | const QString absPath = destinationDir + QDir::separator() + fi.filePath;
|
---|
890 | if (fi.isSymLink) {
|
---|
891 | QString destination = QFile::decodeName(fileData(fi.filePath));
|
---|
892 | if (destination.isEmpty())
|
---|
893 | return false;
|
---|
894 | QFileInfo linkFi(absPath);
|
---|
895 | if (!QFile::exists(linkFi.absolutePath()))
|
---|
896 | QDir::root().mkpath(linkFi.absolutePath());
|
---|
897 | if (!QFile::link(destination, absPath))
|
---|
898 | return false;
|
---|
899 | /* cannot change permission of links
|
---|
900 | if (!QFile::setPermissions(absPath, fi.permissions))
|
---|
901 | return false;
|
---|
902 | */
|
---|
903 | }
|
---|
904 | }
|
---|
905 |
|
---|
906 | foreach (FileInfo fi, allFiles) {
|
---|
907 | const QString absPath = destinationDir + QDir::separator() + fi.filePath;
|
---|
908 | if (fi.isFile) {
|
---|
909 | QFile f(absPath);
|
---|
910 | if (!f.open(QIODevice::WriteOnly))
|
---|
911 | return false;
|
---|
912 | f.write(fileData(fi.filePath));
|
---|
913 | f.setPermissions(fi.permissions);
|
---|
914 | f.close();
|
---|
915 | }
|
---|
916 | }
|
---|
917 |
|
---|
918 | return true;
|
---|
919 | }
|
---|
920 |
|
---|
921 | /*!
|
---|
922 | \enum QZipReader::Status
|
---|
923 |
|
---|
924 | The following status values are possible:
|
---|
925 |
|
---|
926 | \value NoError No error occurred.
|
---|
927 | \value FileReadError An error occurred when reading from the file.
|
---|
928 | \value FileOpenError The file could not be opened.
|
---|
929 | \value FilePermissionsError The file could not be accessed.
|
---|
930 | \value FileError Another file error occurred.
|
---|
931 | */
|
---|
932 |
|
---|
933 | /*!
|
---|
934 | Returns a status code indicating the first error that was met by QZipReader,
|
---|
935 | or QZipReader::NoError if no error occurred.
|
---|
936 | */
|
---|
937 | QZipReader::Status QZipReader::status() const
|
---|
938 | {
|
---|
939 | return d->status;
|
---|
940 | }
|
---|
941 |
|
---|
942 | /*!
|
---|
943 | Close the zip file.
|
---|
944 | */
|
---|
945 | void QZipReader::close()
|
---|
946 | {
|
---|
947 | d->device->close();
|
---|
948 | }
|
---|
949 |
|
---|
950 | ////////////////////////////// Writer
|
---|
951 |
|
---|
952 | /*!
|
---|
953 | \class QZipWriter
|
---|
954 | \internal
|
---|
955 | \since 4.5
|
---|
956 |
|
---|
957 | \brief the QZipWriter class provides a way to create a new zip archive.
|
---|
958 |
|
---|
959 | QZipWriter can be used to create a zip archive containing any number of files
|
---|
960 | and directories. The files in the archive will be compressed in a way that is
|
---|
961 | compatible with common zip reader applications.
|
---|
962 | */
|
---|
963 |
|
---|
964 |
|
---|
965 | /*!
|
---|
966 | Create a new zip archive that operates on the \a archive filename. The file will
|
---|
967 | be opened with the \a mode.
|
---|
968 | \sa isValid()
|
---|
969 | */
|
---|
970 | QZipWriter::QZipWriter(const QString &fileName, QIODevice::OpenMode mode)
|
---|
971 | {
|
---|
972 | QFile *f = new QFile(fileName);
|
---|
973 | f->open(mode);
|
---|
974 | QZipWriter::Status status;
|
---|
975 | if (f->error() == QFile::NoError)
|
---|
976 | status = QZipWriter::NoError;
|
---|
977 | else {
|
---|
978 | if (f->error() == QFile::WriteError)
|
---|
979 | status = QZipWriter::FileWriteError;
|
---|
980 | else if (f->error() == QFile::OpenError)
|
---|
981 | status = QZipWriter::FileOpenError;
|
---|
982 | else if (f->error() == QFile::PermissionsError)
|
---|
983 | status = QZipWriter::FilePermissionsError;
|
---|
984 | else
|
---|
985 | status = QZipWriter::FileError;
|
---|
986 | }
|
---|
987 |
|
---|
988 | d = new QZipWriterPrivate(f, /*ownDevice=*/true);
|
---|
989 | d->status = status;
|
---|
990 | }
|
---|
991 |
|
---|
992 | /*!
|
---|
993 | Create a new zip archive that operates on the archive found in \a device.
|
---|
994 | You have to open the device previous to calling the constructor and
|
---|
995 | only a device that is readable will be scanned for zip filecontent.
|
---|
996 | */
|
---|
997 | QZipWriter::QZipWriter(QIODevice *device)
|
---|
998 | : d(new QZipWriterPrivate(device, /*ownDevice=*/false))
|
---|
999 | {
|
---|
1000 | Q_ASSERT(device);
|
---|
1001 | }
|
---|
1002 |
|
---|
1003 | QZipWriter::~QZipWriter()
|
---|
1004 | {
|
---|
1005 | close();
|
---|
1006 | delete d;
|
---|
1007 | }
|
---|
1008 |
|
---|
1009 | /*!
|
---|
1010 | Returns true if the user can write to the archive; otherwise returns false.
|
---|
1011 | */
|
---|
1012 | bool QZipWriter::isWritable() const
|
---|
1013 | {
|
---|
1014 | return d->device->isWritable();
|
---|
1015 | }
|
---|
1016 |
|
---|
1017 | /*!
|
---|
1018 | Returns true if the file exists; otherwise returns false.
|
---|
1019 | */
|
---|
1020 | bool QZipWriter::exists() const
|
---|
1021 | {
|
---|
1022 | QFile *f = qobject_cast<QFile*> (d->device);
|
---|
1023 | if (f == 0)
|
---|
1024 | return true;
|
---|
1025 | return f->exists();
|
---|
1026 | }
|
---|
1027 |
|
---|
1028 | /*!
|
---|
1029 | \enum QZipWriter::Status
|
---|
1030 |
|
---|
1031 | The following status values are possible:
|
---|
1032 |
|
---|
1033 | \value NoError No error occurred.
|
---|
1034 | \value FileWriteError An error occurred when writing to the device.
|
---|
1035 | \value FileOpenError The file could not be opened.
|
---|
1036 | \value FilePermissionsError The file could not be accessed.
|
---|
1037 | \value FileError Another file error occurred.
|
---|
1038 | */
|
---|
1039 |
|
---|
1040 | /*!
|
---|
1041 | Returns a status code indicating the first error that was met by QZipWriter,
|
---|
1042 | or QZipWriter::NoError if no error occurred.
|
---|
1043 | */
|
---|
1044 | QZipWriter::Status QZipWriter::status() const
|
---|
1045 | {
|
---|
1046 | return d->status;
|
---|
1047 | }
|
---|
1048 |
|
---|
1049 | /*!
|
---|
1050 | \enum QZipWriter::CompressionPolicy
|
---|
1051 |
|
---|
1052 | \value AlwaysCompress A file that is added is compressed.
|
---|
1053 | \value NeverCompress A file that is added will be stored without changes.
|
---|
1054 | \value AutoCompress A file that is added will be compressed only if that will give a smaller file.
|
---|
1055 | */
|
---|
1056 |
|
---|
1057 | /*!
|
---|
1058 | Sets the policy for compressing newly added files to the new \a policy.
|
---|
1059 |
|
---|
1060 | \note the default policy is AlwaysCompress
|
---|
1061 |
|
---|
1062 | \sa compressionPolicy()
|
---|
1063 | \sa addFile()
|
---|
1064 | */
|
---|
1065 | void QZipWriter::setCompressionPolicy(CompressionPolicy policy)
|
---|
1066 | {
|
---|
1067 | d->compressionPolicy = policy;
|
---|
1068 | }
|
---|
1069 |
|
---|
1070 | /*!
|
---|
1071 | Returns the currently set compression policy.
|
---|
1072 | \sa setCompressionPolicy()
|
---|
1073 | \sa addFile()
|
---|
1074 | */
|
---|
1075 | QZipWriter::CompressionPolicy QZipWriter::compressionPolicy() const
|
---|
1076 | {
|
---|
1077 | return d->compressionPolicy;
|
---|
1078 | }
|
---|
1079 |
|
---|
1080 | /*!
|
---|
1081 | Sets the permissions that will be used for newly added files.
|
---|
1082 |
|
---|
1083 | \note the default permissions are QFile::ReadOwner | QFile::WriteOwner.
|
---|
1084 |
|
---|
1085 | \sa creationPermissions()
|
---|
1086 | \sa addFile()
|
---|
1087 | */
|
---|
1088 | void QZipWriter::setCreationPermissions(QFile::Permissions permissions)
|
---|
1089 | {
|
---|
1090 | d->permissions = permissions;
|
---|
1091 | }
|
---|
1092 |
|
---|
1093 | /*!
|
---|
1094 | Returns the currently set creation permissions.
|
---|
1095 |
|
---|
1096 | \sa setCreationPermissions()
|
---|
1097 | \sa addFile()
|
---|
1098 | */
|
---|
1099 | QFile::Permissions QZipWriter::creationPermissions() const
|
---|
1100 | {
|
---|
1101 | return d->permissions;
|
---|
1102 | }
|
---|
1103 |
|
---|
1104 | /*!
|
---|
1105 | Add a file to the archive with \a data as the file contents.
|
---|
1106 | The file will be stored in the archive using the \a fileName which
|
---|
1107 | includes the full path in the archive.
|
---|
1108 |
|
---|
1109 | The new file will get the file permissions based on the current
|
---|
1110 | creationPermissions and it will be compressed using the zip compression
|
---|
1111 | based on the current compression policy.
|
---|
1112 |
|
---|
1113 | \sa setCreationPermissions()
|
---|
1114 | \sa setCompressionPolicy()
|
---|
1115 | */
|
---|
1116 | void QZipWriter::addFile(const QString &fileName, const QByteArray &data)
|
---|
1117 | {
|
---|
1118 | d->addEntry(QZipWriterPrivate::File, fileName, data);
|
---|
1119 | }
|
---|
1120 |
|
---|
1121 | /*!
|
---|
1122 | Add a file to the archive with \a device as the source of the contents.
|
---|
1123 | The contents returned from QIODevice::readAll() will be used as the
|
---|
1124 | filedata.
|
---|
1125 | The file will be stored in the archive using the \a fileName which
|
---|
1126 | includes the full path in the archive.
|
---|
1127 | */
|
---|
1128 | void QZipWriter::addFile(const QString &fileName, QIODevice *device)
|
---|
1129 | {
|
---|
1130 | Q_ASSERT(device);
|
---|
1131 | QIODevice::OpenMode mode = device->openMode();
|
---|
1132 | bool opened = false;
|
---|
1133 | if ((mode & QIODevice::ReadOnly) == 0) {
|
---|
1134 | opened = true;
|
---|
1135 | if (! device->open(QIODevice::ReadOnly)) {
|
---|
1136 | d->status = FileOpenError;
|
---|
1137 | return;
|
---|
1138 | }
|
---|
1139 | }
|
---|
1140 | d->addEntry(QZipWriterPrivate::File, fileName, device->readAll());
|
---|
1141 | if (opened)
|
---|
1142 | device->close();
|
---|
1143 | }
|
---|
1144 |
|
---|
1145 | /*!
|
---|
1146 | Create a new directory in the archive with the specified \a dirName and
|
---|
1147 | the \a permissions;
|
---|
1148 | */
|
---|
1149 | void QZipWriter::addDirectory(const QString &dirName)
|
---|
1150 | {
|
---|
1151 | QString name = dirName;
|
---|
1152 | // separator is mandatory
|
---|
1153 | if (!name.endsWith(QDir::separator()))
|
---|
1154 | name.append(QDir::separator());
|
---|
1155 | d->addEntry(QZipWriterPrivate::Directory, name, QByteArray());
|
---|
1156 | }
|
---|
1157 |
|
---|
1158 | /*!
|
---|
1159 | Create a new symbolic link in the archive with the specified \a dirName
|
---|
1160 | and the \a permissions;
|
---|
1161 | A symbolic link contains the destination (relative) path and name.
|
---|
1162 | */
|
---|
1163 | void QZipWriter::addSymLink(const QString &fileName, const QString &destination)
|
---|
1164 | {
|
---|
1165 | d->addEntry(QZipWriterPrivate::Symlink, fileName, QFile::encodeName(destination));
|
---|
1166 | }
|
---|
1167 |
|
---|
1168 | /*!
|
---|
1169 | Closes the zip file.
|
---|
1170 | */
|
---|
1171 | void QZipWriter::close()
|
---|
1172 | {
|
---|
1173 | if (!(d->device->openMode() & QIODevice::WriteOnly)) {
|
---|
1174 | d->device->close();
|
---|
1175 | return;
|
---|
1176 | }
|
---|
1177 |
|
---|
1178 | //qDebug("QZip::close writing directory, %d entries", d->fileHeaders.size());
|
---|
1179 | d->device->seek(d->start_of_directory);
|
---|
1180 | // write new directory
|
---|
1181 | for (int i = 0; i < d->fileHeaders.size(); ++i) {
|
---|
1182 | const FileHeader &header = d->fileHeaders.at(i);
|
---|
1183 | d->device->write((const char *)&header.h, sizeof(CentralFileHeader));
|
---|
1184 | d->device->write(header.file_name);
|
---|
1185 | d->device->write(header.extra_field);
|
---|
1186 | d->device->write(header.file_comment);
|
---|
1187 | }
|
---|
1188 | int dir_size = d->device->pos() - d->start_of_directory;
|
---|
1189 | // write end of directory
|
---|
1190 | EndOfDirectory eod;
|
---|
1191 | memset(&eod, 0, sizeof(EndOfDirectory));
|
---|
1192 | writeUInt(eod.signature, 0x06054b50);
|
---|
1193 | //uchar this_disk[2];
|
---|
1194 | //uchar start_of_directory_disk[2];
|
---|
1195 | writeUShort(eod.num_dir_entries_this_disk, d->fileHeaders.size());
|
---|
1196 | writeUShort(eod.num_dir_entries, d->fileHeaders.size());
|
---|
1197 | writeUInt(eod.directory_size, dir_size);
|
---|
1198 | writeUInt(eod.dir_start_offset, d->start_of_directory);
|
---|
1199 | writeUShort(eod.comment_length, d->comment.length());
|
---|
1200 |
|
---|
1201 | d->device->write((const char *)&eod, sizeof(EndOfDirectory));
|
---|
1202 | d->device->write(d->comment);
|
---|
1203 | d->device->close();
|
---|
1204 | }
|
---|
1205 |
|
---|
1206 | QT_END_NAMESPACE
|
---|
1207 |
|
---|
1208 | #endif // QT_NO_TEXTODFWRITER
|
---|