Mercurial > hg > orthanc
annotate Core/Compression/ZipWriter.cpp @ 782:a60040857ce6
reorganization
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Fri, 02 May 2014 12:59:05 +0200 |
parents | 2d0a347e8cfc |
children | a811bdf8b8eb |
rev | line source |
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136 | 1 /** |
2 * Orthanc - A Lightweight, RESTful DICOM Store | |
689 | 3 * Copyright (C) 2012-2014 Medical Physics Department, CHU of Liege, |
136 | 4 * Belgium |
5 * | |
6 * This program is free software: you can redistribute it and/or | |
7 * modify it under the terms of the GNU General Public License as | |
8 * published by the Free Software Foundation, either version 3 of the | |
9 * License, or (at your option) any later version. | |
10 * | |
11 * In addition, as a special exception, the copyright holders of this | |
12 * program give permission to link the code of its release with the | |
13 * OpenSSL project's "OpenSSL" library (or with modified versions of it | |
14 * that use the same license as the "OpenSSL" library), and distribute | |
15 * the linked executables. You must obey the GNU General Public License | |
16 * in all respects for all of the code used other than "OpenSSL". If you | |
17 * modify file(s) with this exception, you may extend this exception to | |
18 * your version of the file(s), but you are not obligated to do so. If | |
19 * you do not wish to do so, delete this exception statement from your | |
20 * version. If you delete this exception statement from all source files | |
21 * in the program, then also delete it here. | |
22 * | |
23 * This program is distributed in the hope that it will be useful, but | |
24 * WITHOUT ANY WARRANTY; without even the implied warranty of | |
25 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
26 * General Public License for more details. | |
27 * | |
28 * You should have received a copy of the GNU General Public License | |
29 * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
30 **/ | |
31 | |
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32 #ifndef NOMINMAX |
568 | 33 #define NOMINMAX |
34 #endif | |
136 | 35 |
81 | 36 #include "ZipWriter.h" |
37 | |
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38 #include "../../Resources/minizip/zip.h" |
81 | 39 #include <boost/date_time/posix_time/posix_time.hpp> |
568 | 40 #include <limits> |
81 | 41 |
42 #include "../OrthancException.h" | |
43 | |
44 | |
45 static void PrepareFileInfo(zip_fileinfo& zfi) | |
46 { | |
47 memset(&zfi, 0, sizeof(zfi)); | |
48 | |
49 using namespace boost::posix_time; | |
50 ptime now = second_clock::local_time(); | |
51 | |
52 boost::gregorian::date today = now.date(); | |
53 ptime midnight(today); | |
54 | |
55 time_duration sinceMidnight = now - midnight; | |
56 zfi.tmz_date.tm_sec = sinceMidnight.seconds(); // seconds after the minute - [0,59] | |
57 zfi.tmz_date.tm_min = sinceMidnight.minutes(); // minutes after the hour - [0,59] | |
58 zfi.tmz_date.tm_hour = sinceMidnight.hours(); // hours since midnight - [0,23] | |
59 | |
60 // http://www.boost.org/doc/libs/1_35_0/doc/html/boost/gregorian/greg_day.html | |
61 zfi.tmz_date.tm_mday = today.day(); // day of the month - [1,31] | |
62 | |
63 // http://www.boost.org/doc/libs/1_35_0/doc/html/boost/gregorian/greg_month.html | |
64 zfi.tmz_date.tm_mon = today.month() - 1; // months since January - [0,11] | |
65 | |
66 // http://www.boost.org/doc/libs/1_35_0/doc/html/boost/gregorian/greg_year.html | |
67 zfi.tmz_date.tm_year = today.year(); // years - [1980..2044] | |
68 } | |
69 | |
70 | |
71 | |
72 namespace Orthanc | |
73 { | |
74 struct ZipWriter::PImpl | |
75 { | |
76 zipFile file_; | |
77 }; | |
78 | |
79 ZipWriter::ZipWriter() : pimpl_(new PImpl) | |
80 { | |
81 compressionLevel_ = 6; | |
82 hasFileInZip_ = false; | |
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83 isZip64_ = false; |
81 | 84 |
85 pimpl_->file_ = NULL; | |
86 } | |
87 | |
88 ZipWriter::~ZipWriter() | |
89 { | |
90 Close(); | |
91 } | |
92 | |
93 void ZipWriter::Close() | |
94 { | |
95 if (IsOpen()) | |
96 { | |
97 zipClose(pimpl_->file_, "Created by Orthanc"); | |
98 pimpl_->file_ = NULL; | |
99 hasFileInZip_ = false; | |
100 } | |
101 } | |
102 | |
103 bool ZipWriter::IsOpen() const | |
104 { | |
105 return pimpl_->file_ != NULL; | |
106 } | |
107 | |
108 void ZipWriter::Open() | |
109 { | |
110 if (IsOpen()) | |
111 { | |
112 return; | |
113 } | |
114 | |
115 if (path_.size() == 0) | |
116 { | |
117 throw OrthancException("Please call SetOutputPath() before creating the file"); | |
118 } | |
119 | |
120 hasFileInZip_ = false; | |
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121 |
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122 if (isZip64_) |
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123 { |
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124 pimpl_->file_ = zipOpen64(path_.c_str(), APPEND_STATUS_CREATE); |
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125 } |
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126 else |
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127 { |
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128 pimpl_->file_ = zipOpen(path_.c_str(), APPEND_STATUS_CREATE); |
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129 } |
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130 |
81 | 131 if (!pimpl_->file_) |
132 { | |
133 throw OrthancException(ErrorCode_CannotWriteFile); | |
134 } | |
135 } | |
136 | |
137 void ZipWriter::SetOutputPath(const char* path) | |
138 { | |
139 Close(); | |
140 path_ = path; | |
141 } | |
142 | |
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143 void ZipWriter::SetZip64(bool isZip64) |
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144 { |
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145 Close(); |
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146 isZip64_ = isZip64; |
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147 } |
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148 |
81 | 149 void ZipWriter::SetCompressionLevel(uint8_t level) |
150 { | |
151 if (level >= 10) | |
152 { | |
153 throw OrthancException("ZIP compression level must be between 0 (no compression) and 9 (highest compression"); | |
154 } | |
155 | |
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156 Close(); |
81 | 157 compressionLevel_ = level; |
158 } | |
159 | |
249 | 160 void ZipWriter::OpenFile(const char* path) |
81 | 161 { |
162 Open(); | |
163 | |
164 zip_fileinfo zfi; | |
165 PrepareFileInfo(zfi); | |
166 | |
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167 int result; |
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168 |
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169 if (isZip64_) |
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170 { |
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171 result = zipOpenNewFileInZip64(pimpl_->file_, path, |
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172 &zfi, |
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173 NULL, 0, |
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174 NULL, 0, |
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175 "", // Comment |
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176 Z_DEFLATED, |
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177 compressionLevel_, 1); |
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178 } |
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179 else |
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180 { |
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181 result = zipOpenNewFileInZip(pimpl_->file_, path, |
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182 &zfi, |
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183 NULL, 0, |
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184 NULL, 0, |
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185 "", // Comment |
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186 Z_DEFLATED, |
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187 compressionLevel_); |
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188 } |
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189 |
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190 if (result != 0) |
81 | 191 { |
192 throw OrthancException(ErrorCode_CannotWriteFile); | |
193 } | |
194 | |
195 hasFileInZip_ = true; | |
196 } | |
197 | |
198 | |
199 void ZipWriter::Write(const std::string& data) | |
200 { | |
201 if (data.size()) | |
202 { | |
203 Write(&data[0], data.size()); | |
204 } | |
205 } | |
206 | |
207 | |
208 void ZipWriter::Write(const char* data, size_t length) | |
209 { | |
210 if (!hasFileInZip_) | |
211 { | |
249 | 212 throw OrthancException("Call first OpenFile()"); |
81 | 213 } |
214 | |
215 const size_t maxBytesInAStep = std::numeric_limits<int32_t>::max(); | |
216 | |
217 while (length > 0) | |
218 { | |
219 int bytes = static_cast<int32_t>(length <= maxBytesInAStep ? length : maxBytesInAStep); | |
220 | |
221 if (zipWriteInFileInZip(pimpl_->file_, data, bytes)) | |
222 { | |
223 throw OrthancException(ErrorCode_CannotWriteFile); | |
224 } | |
225 | |
226 data += bytes; | |
227 length -= bytes; | |
228 } | |
229 } | |
230 } |