| 1 | /*
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| 2 | Copyright (C) 2005-2014 Sergey A. Tachenov
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| 3 |
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| 4 | This file is part of QuaZIP.
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| 5 |
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| 6 | QuaZIP is free software: you can redistribute it and/or modify
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| 7 | it under the terms of the GNU Lesser General Public License as published by
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| 8 | the Free Software Foundation, either version 2.1 of the License, or
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| 9 | (at your option) any later version.
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| 10 |
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| 11 | QuaZIP is distributed in the hope that it will be useful,
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| 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 14 | GNU Lesser General Public License for more details.
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| 15 |
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| 16 | You should have received a copy of the GNU Lesser General Public License
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| 17 | along with QuaZIP. If not, see <http://www.gnu.org/licenses/>.
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| 18 |
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| 19 | See COPYING file for the full LGPL text.
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| 20 |
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| 21 | Original ZIP package is copyrighted by Gilles Vollant and contributors,
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| 22 | see quazip/(un)zip.h files for details. Basically it's the zlib license.
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| 23 | */
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| 24 |
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| 25 | #include <QFileInfo>
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| 26 |
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| 27 | #include "quazipnewinfo.h"
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| 28 |
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| 29 | #include <string.h>
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| 30 |
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| 31 | static void QuaZipNewInfo_setPermissions(QuaZipNewInfo *info,
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| 32 | QFile::Permissions perm, bool isDir)
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| 33 | {
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| 34 | quint32 uPerm = isDir ? 0040000 : 0100000;
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| 35 | if ((perm & QFile::ReadOwner) != 0)
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| 36 | uPerm |= 0400;
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| 37 | if ((perm & QFile::WriteOwner) != 0)
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| 38 | uPerm |= 0200;
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| 39 | if ((perm & QFile::ExeOwner) != 0)
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| 40 | uPerm |= 0100;
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| 41 | if ((perm & QFile::ReadGroup) != 0)
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| 42 | uPerm |= 0040;
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| 43 | if ((perm & QFile::WriteGroup) != 0)
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| 44 | uPerm |= 0020;
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| 45 | if ((perm & QFile::ExeGroup) != 0)
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| 46 | uPerm |= 0010;
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| 47 | if ((perm & QFile::ReadOther) != 0)
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| 48 | uPerm |= 0004;
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| 49 | if ((perm & QFile::WriteOther) != 0)
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| 50 | uPerm |= 0002;
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| 51 | if ((perm & QFile::ExeOther) != 0)
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| 52 | uPerm |= 0001;
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| 53 | info->externalAttr = (info->externalAttr & ~0xFFFF0000u) | (uPerm << 16);
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| 54 | }
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| 55 |
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| 56 | template<typename FileInfo>
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| 57 | void QuaZipNewInfo_init(QuaZipNewInfo &self, const FileInfo &existing)
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| 58 | {
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| 59 | self.name = existing.name;
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| 60 | self.dateTime = existing.dateTime;
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| 61 | self.internalAttr = existing.internalAttr;
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| 62 | self.externalAttr = existing.externalAttr;
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| 63 | self.comment = existing.comment;
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| 64 | self.extraLocal = existing.extra;
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| 65 | self.extraGlobal = existing.extra;
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| 66 | self.uncompressedSize = existing.uncompressedSize;
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| 67 | }
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| 68 |
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| 69 | QuaZipNewInfo::QuaZipNewInfo(const QuaZipFileInfo &existing)
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| 70 | {
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| 71 | QuaZipNewInfo_init(*this, existing);
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| 72 | }
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| 73 |
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| 74 | QuaZipNewInfo::QuaZipNewInfo(const QuaZipFileInfo64 &existing)
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| 75 | {
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| 76 | QuaZipNewInfo_init(*this, existing);
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| 77 | }
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| 78 |
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| 79 | QuaZipNewInfo::QuaZipNewInfo(const QString& name):
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| 80 | name(name), dateTime(QDateTime::currentDateTime()), internalAttr(0), externalAttr(0),
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| 81 | uncompressedSize(0)
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| 82 | {
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| 83 | }
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| 84 |
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| 85 | QuaZipNewInfo::QuaZipNewInfo(const QString& name, const QString& file):
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| 86 | name(name), internalAttr(0), externalAttr(0), uncompressedSize(0)
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| 87 | {
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| 88 | QFileInfo info(file);
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| 89 | QDateTime lm = info.lastModified();
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| 90 | if (!info.exists()) {
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| 91 | dateTime = QDateTime::currentDateTime();
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| 92 | } else {
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| 93 | dateTime = lm;
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| 94 | QuaZipNewInfo_setPermissions(this, info.permissions(), info.isDir());
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| 95 | }
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| 96 | }
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| 97 |
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| 98 | void QuaZipNewInfo::setFileDateTime(const QString& file)
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| 99 | {
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| 100 | QFileInfo info(file);
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| 101 | QDateTime lm = info.lastModified();
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| 102 | if (info.exists())
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| 103 | dateTime = lm;
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| 104 | }
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| 105 |
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| 106 | void QuaZipNewInfo::setFilePermissions(const QString &file)
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| 107 | {
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| 108 | QFileInfo info = QFileInfo(file);
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| 109 | QFile::Permissions perm = info.permissions();
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| 110 | QuaZipNewInfo_setPermissions(this, perm, info.isDir());
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| 111 | }
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| 112 |
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| 113 | void QuaZipNewInfo::setPermissions(QFile::Permissions permissions)
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| 114 | {
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| 115 | QuaZipNewInfo_setPermissions(this, permissions, name.endsWith('/'));
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| 116 | }
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| 117 |
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| 118 | void QuaZipNewInfo::setFileNTFSTimes(const QString &fileName)
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| 119 | {
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| 120 | QFileInfo fi(fileName);
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| 121 | if (!fi.exists()) {
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| 122 | qWarning("QuaZipNewInfo::setFileNTFSTimes(): '%s' doesn't exist",
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| 123 | fileName.toUtf8().constData());
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| 124 | return;
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| 125 | }
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| 126 | setFileNTFSmTime(fi.lastModified());
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| 127 | setFileNTFSaTime(fi.lastRead());
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| 128 | setFileNTFScTime(fi.created());
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| 129 | }
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| 130 |
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| 131 | static void setNTFSTime(QByteArray &extra, const QDateTime &time, int position,
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| 132 | int fineTicks) {
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| 133 | int ntfsPos = -1, timesPos = -1;
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| 134 | unsigned ntfsLength = 0, ntfsTimesLength = 0;
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| 135 | for (int i = 0; i <= extra.size() - 4; ) {
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| 136 | unsigned type = static_cast<unsigned>(static_cast<unsigned char>(
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| 137 | extra.at(i)))
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| 138 | | (static_cast<unsigned>(static_cast<unsigned char>(
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| 139 | extra.at(i + 1))) << 8);
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| 140 | i += 2;
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| 141 | unsigned length = static_cast<unsigned>(static_cast<unsigned char>(
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| 142 | extra.at(i)))
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| 143 | | (static_cast<unsigned>(static_cast<unsigned char>(
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| 144 | extra.at(i + 1))) << 8);
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| 145 | i += 2;
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| 146 | if (type == QUAZIP_EXTRA_NTFS_MAGIC) {
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| 147 | ntfsPos = i - 4; // the beginning of the NTFS record
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| 148 | ntfsLength = length;
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| 149 | if (length <= 4) {
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| 150 | break; // no times in the NTFS record
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| 151 | }
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| 152 | i += 4; // reserved
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| 153 | while (i <= extra.size() - 4) {
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| 154 | unsigned tag = static_cast<unsigned>(
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| 155 | static_cast<unsigned char>(extra.at(i)))
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| 156 | | (static_cast<unsigned>(
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| 157 | static_cast<unsigned char>(extra.at(i + 1)))
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| 158 | << 8);
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| 159 | i += 2;
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| 160 | unsigned tagsize = static_cast<unsigned>(
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| 161 | static_cast<unsigned char>(extra.at(i)))
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| 162 | | (static_cast<unsigned>(
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| 163 | static_cast<unsigned char>(extra.at(i + 1)))
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| 164 | << 8);
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| 165 | i += 2;
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| 166 | if (tag == QUAZIP_EXTRA_NTFS_TIME_MAGIC) {
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| 167 | timesPos = i - 4; // the beginning of the NTFS times tag
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| 168 | ntfsTimesLength = tagsize;
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| 169 | break;
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| 170 | } else {
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| 171 | i += tagsize;
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| 172 | }
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| 173 | }
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| 174 | break; // I ain't going to search for yet another NTFS record!
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| 175 | } else {
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| 176 | i += length;
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| 177 | }
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| 178 | }
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| 179 | if (ntfsPos == -1) {
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| 180 | // No NTFS record, need to create one.
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| 181 | ntfsPos = extra.size();
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| 182 | ntfsLength = 32;
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| 183 | extra.resize(extra.size() + 4 + ntfsLength);
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| 184 | // the NTFS record header
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| 185 | extra[ntfsPos] = static_cast<char>(QUAZIP_EXTRA_NTFS_MAGIC);
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| 186 | extra[ntfsPos + 1] = static_cast<char>(QUAZIP_EXTRA_NTFS_MAGIC >> 8);
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| 187 | extra[ntfsPos + 2] = 32; // the 2-byte size in LittleEndian
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| 188 | extra[ntfsPos + 3] = 0;
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| 189 | // zero the record
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| 190 | memset(extra.data() + ntfsPos + 4, 0, 32);
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| 191 | timesPos = ntfsPos + 8;
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| 192 | // now set the tag data
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| 193 | extra[timesPos] = static_cast<char>(QUAZIP_EXTRA_NTFS_TIME_MAGIC);
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| 194 | extra[timesPos + 1] = static_cast<char>(QUAZIP_EXTRA_NTFS_TIME_MAGIC
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| 195 | >> 8);
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| 196 | // the size:
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| 197 | extra[timesPos + 2] = 24;
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| 198 | extra[timesPos + 3] = 0;
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| 199 | ntfsTimesLength = 24;
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| 200 | }
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| 201 | if (timesPos == -1) {
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| 202 | // No time tag in the NTFS record, need to add one.
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| 203 | timesPos = ntfsPos + 4 + ntfsLength;
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| 204 | extra.resize(extra.size() + 28);
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| 205 | // Now we need to move the rest of the field
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| 206 | // (possibly zero bytes, but memmove() is OK with that).
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| 207 | // 0 ......... ntfsPos .. ntfsPos + 4 ... timesPos
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| 208 | // <some data> <header> <NTFS record> <need-to-move data> <end>
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| 209 | memmove(extra.data() + timesPos + 28, extra.data() + timesPos,
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| 210 | extra.size() - 28 - timesPos);
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| 211 | ntfsLength += 28;
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| 212 | // now set the tag data
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| 213 | extra[timesPos] = static_cast<char>(QUAZIP_EXTRA_NTFS_TIME_MAGIC);
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| 214 | extra[timesPos + 1] = static_cast<char>(QUAZIP_EXTRA_NTFS_TIME_MAGIC
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| 215 | >> 8);
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| 216 | // the size:
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| 217 | extra[timesPos + 2] = 24;
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| 218 | extra[timesPos + 3] = 0;
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| 219 | // zero the record
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| 220 | memset(extra.data() + timesPos + 4, 0, 24);
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| 221 | ntfsTimesLength = 24;
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| 222 | }
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| 223 | if (ntfsTimesLength < 24) {
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| 224 | // Broken times field. OK, this is really unlikely, but just in case...
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| 225 | size_t timesEnd = timesPos + 4 + ntfsTimesLength;
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| 226 | extra.resize(extra.size() + (24 - ntfsTimesLength));
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| 227 | // Move it!
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| 228 | // 0 ......... timesPos .... timesPos + 4 .. timesEnd
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| 229 | // <some data> <time header> <broken times> <need-to-move data> <end>
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| 230 | memmove(extra.data() + timesEnd + (24 - ntfsTimesLength),
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| 231 | extra.data() + timesEnd,
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| 232 | extra.size() - (24 - ntfsTimesLength) - timesEnd);
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| 233 | // Now we have to increase the NTFS record and time tag lengths.
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| 234 | ntfsLength += (24 - ntfsTimesLength);
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| 235 | ntfsTimesLength = 24;
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| 236 | extra[ntfsPos + 2] = static_cast<char>(ntfsLength);
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| 237 | extra[ntfsPos + 3] = static_cast<char>(ntfsLength >> 8);
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| 238 | extra[timesPos + 2] = static_cast<char>(ntfsTimesLength);
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| 239 | extra[timesPos + 3] = static_cast<char>(ntfsTimesLength >> 8);
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| 240 | }
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| 241 | QDateTime base(QDate(1601, 1, 1), QTime(0, 0), Qt::UTC);
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| 242 | #if (QT_VERSION >= 0x040700)
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| 243 | quint64 ticks = base.msecsTo(time) * 10000 + fineTicks;
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| 244 | #else
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| 245 | QDateTime utc = time.toUTC();
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| 246 | quint64 ticks = (static_cast<qint64>(base.date().daysTo(utc.date()))
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| 247 | * Q_INT64_C(86400000)
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| 248 | + static_cast<qint64>(base.time().msecsTo(utc.time())))
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| 249 | * Q_INT64_C(10000) + fineTicks;
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| 250 | #endif
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| 251 | extra[timesPos + 4 + position] = static_cast<char>(ticks);
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| 252 | extra[timesPos + 5 + position] = static_cast<char>(ticks >> 8);
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| 253 | extra[timesPos + 6 + position] = static_cast<char>(ticks >> 16);
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| 254 | extra[timesPos + 7 + position] = static_cast<char>(ticks >> 24);
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| 255 | extra[timesPos + 8 + position] = static_cast<char>(ticks >> 32);
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| 256 | extra[timesPos + 9 + position] = static_cast<char>(ticks >> 40);
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| 257 | extra[timesPos + 10 + position] = static_cast<char>(ticks >> 48);
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| 258 | extra[timesPos + 11 + position] = static_cast<char>(ticks >> 56);
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| 259 | }
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| 260 |
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| 261 | void QuaZipNewInfo::setFileNTFSmTime(const QDateTime &mTime, int fineTicks)
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| 262 | {
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| 263 | setNTFSTime(extraLocal, mTime, 0, fineTicks);
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| 264 | setNTFSTime(extraGlobal, mTime, 0, fineTicks);
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| 265 | }
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| 266 |
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| 267 | void QuaZipNewInfo::setFileNTFSaTime(const QDateTime &aTime, int fineTicks)
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| 268 | {
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| 269 | setNTFSTime(extraLocal, aTime, 8, fineTicks);
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| 270 | setNTFSTime(extraGlobal, aTime, 8, fineTicks);
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| 271 | }
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| 272 |
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| 273 | void QuaZipNewInfo::setFileNTFScTime(const QDateTime &cTime, int fineTicks)
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| 274 | {
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| 275 | setNTFSTime(extraLocal, cTime, 16, fineTicks);
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| 276 | setNTFSTime(extraGlobal, cTime, 16, fineTicks);
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| 277 | }
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