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annotate Resources/Orthanc/Core/Compression/HierarchicalZipWriter.cpp @ 200:03afbee0cc7b

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integration of Orthanc core into Stone
author Sebastien Jodogne <s.jodogne@gmail.com>
date Fri, 23 Mar 2018 11:04:03 +0100
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children
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200
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1 /**
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2 * Orthanc - A Lightweight, RESTful DICOM Store
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3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
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4 * Department, University Hospital of Liege, Belgium
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5 * Copyright (C) 2017-2018 Osimis S.A., Belgium
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6 *
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7 * This program is free software: you can redistribute it and/or
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8 * modify it under the terms of the GNU General Public License as
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9 * published by the Free Software Foundation, either version 3 of the
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10 * License, or (at your option) any later version.
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11 *
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12 * In addition, as a special exception, the copyright holders of this
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13 * program give permission to link the code of its release with the
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14 * OpenSSL project's "OpenSSL" library (or with modified versions of it
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15 * that use the same license as the "OpenSSL" library), and distribute
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16 * the linked executables. You must obey the GNU General Public License
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17 * in all respects for all of the code used other than "OpenSSL". If you
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18 * modify file(s) with this exception, you may extend this exception to
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19 * your version of the file(s), but you are not obligated to do so. If
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20 * you do not wish to do so, delete this exception statement from your
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21 * version. If you delete this exception statement from all source files
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22 * in the program, then also delete it here.
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23 *
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24 * This program is distributed in the hope that it will be useful, but
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25 * WITHOUT ANY WARRANTY; without even the implied warranty of
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26 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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27 * General Public License for more details.
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28 *
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29 * You should have received a copy of the GNU General Public License
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30 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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31 **/
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32
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33
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34 #include "../PrecompiledHeaders.h"
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35 #include "HierarchicalZipWriter.h"
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36
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37 #include "../Toolbox.h"
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38 #include "../OrthancException.h"
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39
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40 #include <boost/lexical_cast.hpp>
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41
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42 namespace Orthanc
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43 {
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44 std::string HierarchicalZipWriter::Index::KeepAlphanumeric(const std::string& source)
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45 {
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46 std::string result;
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47
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48 bool lastSpace = false;
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49
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50 result.reserve(source.size());
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51 for (size_t i = 0; i < source.size(); i++)
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52 {
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53 char c = source[i];
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54 if (c == '^')
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55 c = ' ';
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56
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57 if (c <= 127 &&
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58 c >= 0)
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59 {
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60 if (isspace(c))
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61 {
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62 if (!lastSpace)
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63 {
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64 lastSpace = true;
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65 result.push_back(' ');
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66 }
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67 }
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68 else if (isalnum(c) ||
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69 c == '.' ||
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70 c == '_')
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71 {
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72 result.push_back(c);
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73 lastSpace = false;
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74 }
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75 }
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76 }
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77
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78 return Toolbox::StripSpaces(result);
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79 }
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80
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81 std::string HierarchicalZipWriter::Index::GetCurrentDirectoryPath() const
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82 {
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83 std::string result;
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84
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85 Stack::const_iterator it = stack_.begin();
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86 ++it; // Skip the root node (to avoid absolute paths)
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87
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88 while (it != stack_.end())
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89 {
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90 result += (*it)->name_ + "/";
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91 ++it;
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92 }
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93
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94 return result;
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95 }
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96
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97 std::string HierarchicalZipWriter::Index::EnsureUniqueFilename(const char* filename)
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98 {
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99 std::string standardized = KeepAlphanumeric(filename);
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100
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101 Directory& d = *stack_.back();
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102 Directory::Content::iterator it = d.content_.find(standardized);
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103
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104 if (it == d.content_.end())
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105 {
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106 d.content_[standardized] = 1;
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107 return standardized;
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108 }
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109 else
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110 {
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111 it->second++;
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112 return standardized + "-" + boost::lexical_cast<std::string>(it->second);
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113 }
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114 }
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115
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116 HierarchicalZipWriter::Index::Index()
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117 {
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118 stack_.push_back(new Directory);
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119 }
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120
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121 HierarchicalZipWriter::Index::~Index()
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122 {
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123 for (Stack::iterator it = stack_.begin(); it != stack_.end(); ++it)
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124 {
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125 delete *it;
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126 }
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127 }
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128
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129 std::string HierarchicalZipWriter::Index::OpenFile(const char* name)
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130 {
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131 return GetCurrentDirectoryPath() + EnsureUniqueFilename(name);
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132 }
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133
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134 void HierarchicalZipWriter::Index::OpenDirectory(const char* name)
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135 {
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136 std::string d = EnsureUniqueFilename(name);
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137
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138 // Push the new directory onto the stack
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139 stack_.push_back(new Directory);
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140 stack_.back()->name_ = d;
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141 }
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142
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143 void HierarchicalZipWriter::Index::CloseDirectory()
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144 {
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145 if (IsRoot())
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146 {
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147 // Cannot close the root node
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148 throw OrthancException(ErrorCode_BadSequenceOfCalls);
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149 }
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150
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151 delete stack_.back();
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152 stack_.pop_back();
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153 }
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154
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155
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156 HierarchicalZipWriter::HierarchicalZipWriter(const char* path)
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157 {
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158 writer_.SetOutputPath(path);
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159 writer_.Open();
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160 }
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161
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162 HierarchicalZipWriter::~HierarchicalZipWriter()
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163 {
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164 writer_.Close();
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165 }
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166
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167 void HierarchicalZipWriter::OpenFile(const char* name)
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168 {
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169 std::string p = indexer_.OpenFile(name);
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170 writer_.OpenFile(p.c_str());
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171 }
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172
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173 void HierarchicalZipWriter::OpenDirectory(const char* name)
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174 {
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175 indexer_.OpenDirectory(name);
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176 }
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177
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178 void HierarchicalZipWriter::CloseDirectory()
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179 {
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180 indexer_.CloseDirectory();
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181 }
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182 }