Repository navigation
Expand file tree
/
Copy pathQMinizip.cpp
More file actions
323 lines (257 loc) · 9.61 KB
/
Copy pathQMinizip.cpp
File metadata and controls
323 lines (257 loc) · 9.61 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
/*
--------------------------------------------------------------------------------
The MIT License (MIT)
Copyright (c) 2015 Ralph-Gordon Paul. All rights reserved.
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
--------------------------------------------------------------------------------
*/
#include "QMinizip.h"
#include <QFile>
#include <QFileInfo>
#include <QDir>
#include <zlib.h>
#include <zconf.h>
#include "minizip/zip.h"
#include "minizip/unzip.h"
using namespace rgp;
QMinizip::QMinizip(QObject *parent) : QObject(parent) {}
QMinizip::~QMinizip()
{
// close any open files
closeZipFile();
closeUnzipFile();
// free memory
if (m_unzippedFiles != nullptr) delete m_unzippedFiles;
}
// -----------------------------------------------------------------------------
// accessors
// -----------------------------------------------------------------------------
QStringList * QMinizip::unzippedFiles() const
{
return m_unzippedFiles;
}
// -----------------------------------------------------------------------------
// zip functions
// -----------------------------------------------------------------------------
bool QMinizip::createZipFile(QString filepath, bool append, QString password)
{
m_password = password;
int appendData = (append ? APPEND_STATUS_ADDINZIP : APPEND_STATUS_CREATE);
m_zipFile = zipOpen(filepath.toUtf8().data(), appendData);
if (!m_zipFile)
return false;
return true;
}
bool QMinizip::addFileToZip(QString filepath, QString newname)
{
QFile file = { filepath };
if (!file.exists())
return false;
if (!file.open(QIODevice::ReadOnly))
return false;
QFileInfo fileInfo = QFileInfo(file);
QByteArray data = file.readAll();
QDateTime created = fileInfo.created();
return addDataToZip(&data, newname, created);
}
bool QMinizip::addDataToZip(QByteArray *data, QString newname,
QDateTime created)
{
if (data == nullptr || newname == nullptr || m_zipFile == nullptr)
return false;
if (!created.isValid())
created = QDateTime::currentDateTime();
zip_fileinfo zipInfo = {{0,0,0,0,0,0},0,0,0};
zipInfo.tmz_date.tm_sec = created.time().second();
zipInfo.tmz_date.tm_min = created.time().minute();
zipInfo.tmz_date.tm_hour = created.time().hour();
zipInfo.tmz_date.tm_mday = created.date().day();
zipInfo.tmz_date.tm_mon = created.date().month() - 1; // 0-11 vs 1-12
zipInfo.tmz_date.tm_year = created.date().year();
if (m_password.isEmpty())
{
if (zipOpenNewFileInZip(m_zipFile, // file
newname.toUtf8().data(), // filename
&zipInfo, // zipfi
NULL, // extrafield_local
0, // size_extrafield_local
NULL, // extrafield_global
0, // size_extrafield_global
NULL, //comment
Z_DEFLATED, // method
Z_DEFAULT_COMPRESSION // level
) != Z_OK) {
return false;
}
} else {
uLong crc = crc32(0L, NULL, 0L);
crc = crc32( crc, (const Bytef*)data->constData(), (unsigned int)data->size() );
if (zipOpenNewFileInZip3(m_zipFile, // file
newname.toUtf8(), // filename
&zipInfo, // zipfi
NULL,0, // extrafield_local
NULL,0, // extrafield_global
NULL, //comment
Z_DEFLATED, // method
Z_DEFAULT_COMPRESSION, // level
0, // raw
15, // windowBits
8, // memLevel
Z_DEFAULT_STRATEGY, // strategy
m_password.toLatin1(), // password
crc // crcForCrypting
) != Z_OK) {
return false;
}
}
if (zipWriteInFileInZip(m_zipFile, data->constData(), data->size()) != Z_OK)
return false;
if (zipCloseFileInZip(m_zipFile) != Z_OK)
return false;
return true;
}
bool QMinizip::closeZipFile()
{
m_password = nullptr;
if (m_zipFile == nullptr)
return false;
if (zipClose(m_zipFile, NULL) != Z_OK) {
m_zipFile = nullptr;
return false;
}
m_zipFile = nullptr;
return true;
}
// -----------------------------------------------------------------------------
// unzip functions
// -----------------------------------------------------------------------------
bool QMinizip::openUnzipFile(QString filepath, QString password)
{
m_password = password;
if (m_unzippedFiles != nullptr)
delete m_unzippedFiles;
m_unzippedFiles = new QStringList();
m_unzipFile = unzOpen(filepath.toUtf8().data());
return m_unzipFile != nullptr;
}
bool QMinizip::unzipFiles(QString targetpath, bool overwrite)
{
if (targetpath.isEmpty() || m_unzipFile == nullptr)
return false;
// targetpath needs a trailing /
if (!targetpath.endsWith('/'))
targetpath.append('/');
bool success = true;
char buffer[4096] = {0};
const char *password = { nullptr };
if (!m_password.isEmpty())
password = m_password.toStdString().c_str();
if (unzGoToFirstFile(m_unzipFile) != UNZ_OK)
return false;
do // we iterate over all files
{
// open current file
if (password != nullptr) {
// we have a password - so we need to open with it
if (unzOpenCurrentFilePassword(m_unzipFile, password) != UNZ_OK) {
success = false;
break;
}
} else {
// we don't have a password - just open
if (unzOpenCurrentFile(m_unzipFile) != UNZ_OK) {
success = false;
break;
}
}
// reading file info
unz_file_info fileInfo;
if (unzGetCurrentFileInfo(m_unzipFile, &fileInfo, NULL, 0, NULL, 0,
NULL, 0) != UNZ_OK) {
success = false;
unzCloseCurrentFile(m_unzipFile);
break;
}
// get filename from the fileInfo
char *cfilename = new char[fileInfo.size_filename + 1];
unzGetCurrentFileInfo(m_unzipFile, &fileInfo, cfilename,
fileInfo.size_filename + 1, NULL, 0, NULL, 0);
cfilename[fileInfo.size_filename] = '\0';
// check filename for paths
QString filename = { cfilename };
delete[] cfilename;
// replace all '\' with '/'
int index = -1;
while ((index = filename.indexOf('\\')) != -1) {
filename.replace(index, 1, '/');
}
QString fullpath = targetpath + filename;
// create directory / parent directories
index = fullpath.lastIndexOf('/');
if (index != -1) {
QDir path = { fullpath.left(index) };
path.mkpath(".");
}
QFile *file = nullptr;
int read = 0;
while ((read = unzReadCurrentFile(m_unzipFile, buffer, 4096)) > 0)
{
if (file == nullptr)
{
if (QFile::exists(fullpath) && !overwrite)
break;
file = new QFile(fullpath);
if (!file->open(QIODevice::WriteOnly)) {
delete file;
file = nullptr;
break;
}
}
QByteArray data = QByteArray::fromRawData(buffer, read);
file->write(data);
}
// check if we got an error
if (read < 0)
success = false;
if (file != nullptr) {
file->close(); // flush the data to the file
// we list all unzipped files
m_unzippedFiles->append(fullpath);
delete file;
file = nullptr;
}
// we are done with the file -> close the file
if (unzCloseCurrentFile(m_unzipFile) != UNZ_OK) {
success = false;
break;
}
} // goto next file
while (unzGoToNextFile(m_unzipFile) == UNZ_OK && success);
return success;
}
bool QMinizip::closeUnzipFile()
{
m_password = nullptr;
if (m_unzipFile == nullptr)
return false;
if (unzClose(m_unzipFile) != UNZ_OK) {
m_unzipFile = nullptr;
return false;
}
m_unzipFile = nullptr;
return true;
}