Mercurial > hg > orthanc
annotate Core/Compression/ZipWriter.cpp @ 689:2d0a347e8cfc
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| author | Sebastien Jodogne <s.jodogne@gmail.com> |
|---|---|
| date | Mon, 03 Feb 2014 16:06:58 +0100 |
| parents | e8e59e80868c |
| 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 } |