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annotate OrthancFramework/Sources/Compression/HierarchicalZipWriter.cpp @ 4119:bf7b9edf6b81 framework-lgpl

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re-licensing the OrthancFramework to LGPL, in order to license Stone of Orthanc under LGPL
author Sebastien Jodogne <s.jodogne@gmail.com>
date Tue, 07 Jul 2020 19:17:56 +0200
parents d25f4c0fa160
children 3b70a2e6a06c
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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) 2017-2020 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 Lesser General Public License
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9 * as published by the Free Software Foundation, either version 3 of
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10 * the License, or (at your option) any later version.
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11 *
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12 * This program is distributed in the hope that it will be useful, but
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13 * WITHOUT ANY WARRANTY; without even the implied warranty of
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14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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15 * Lesser General Public License for more details.
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16 *
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17 * You should have received a copy of the GNU Lesser General Public
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18 * License along with this program. If not, see
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19 * <http://www.gnu.org/licenses/>.
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20 **/
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22
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23 #include "../PrecompiledHeaders.h"
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24 #include "HierarchicalZipWriter.h"
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25
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26 #include "../Toolbox.h"
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27 #include "../OrthancException.h"
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28
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29 #include <boost/lexical_cast.hpp>
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30
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31 namespace Orthanc
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32 {
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33 std::string HierarchicalZipWriter::Index::KeepAlphanumeric(const std::string& source)
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34 {
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35 std::string result;
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36
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37 bool lastSpace = false;
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38
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39 result.reserve(source.size());
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40 for (size_t i = 0; i < source.size(); i++)
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41 {
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42 char c = source[i];
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43 if (c == '^')
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44 c = ' ';
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45
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46 if (c <= 127 &&
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47 c >= 0)
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48 {
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49 if (isspace(c))
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50 {
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51 if (!lastSpace)
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52 {
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53 lastSpace = true;
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54 result.push_back(' ');
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55 }
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56 }
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57 else if (isalnum(c) ||
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58 c == '.' ||
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59 c == '_')
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60 {
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61 result.push_back(c);
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62 lastSpace = false;
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63 }
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64 }
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65 }
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66
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67 return Toolbox::StripSpaces(result);
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68 }
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69
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70 std::string HierarchicalZipWriter::Index::GetCurrentDirectoryPath() const
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71 {
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72 std::string result;
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73
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74 Stack::const_iterator it = stack_.begin();
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75 ++it; // Skip the root node (to avoid absolute paths)
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76
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77 while (it != stack_.end())
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78 {
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79 result += (*it)->name_ + "/";
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80 ++it;
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81 }
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82
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83 return result;
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84 }
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85
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86 std::string HierarchicalZipWriter::Index::EnsureUniqueFilename(const char* filename)
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87 {
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88 std::string standardized = KeepAlphanumeric(filename);
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89
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90 Directory& d = *stack_.back();
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91 Directory::Content::iterator it = d.content_.find(standardized);
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92
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93 if (it == d.content_.end())
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94 {
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95 d.content_[standardized] = 1;
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96 return standardized;
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97 }
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98 else
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99 {
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100 it->second++;
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101 return standardized + "-" + boost::lexical_cast<std::string>(it->second);
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102 }
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103 }
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104
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105 HierarchicalZipWriter::Index::Index()
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106 {
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107 stack_.push_back(new Directory);
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108 }
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109
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110 HierarchicalZipWriter::Index::~Index()
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111 {
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112 for (Stack::iterator it = stack_.begin(); it != stack_.end(); ++it)
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113 {
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114 delete *it;
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115 }
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116 }
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117
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118 std::string HierarchicalZipWriter::Index::OpenFile(const char* name)
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119 {
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120 return GetCurrentDirectoryPath() + EnsureUniqueFilename(name);
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121 }
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122
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123 void HierarchicalZipWriter::Index::OpenDirectory(const char* name)
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124 {
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125 std::string d = EnsureUniqueFilename(name);
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126
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127 // Push the new directory onto the stack
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128 stack_.push_back(new Directory);
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129 stack_.back()->name_ = d;
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130 }
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131
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132 void HierarchicalZipWriter::Index::CloseDirectory()
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133 {
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134 if (IsRoot())
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135 {
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136 // Cannot close the root node
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137 throw OrthancException(ErrorCode_BadSequenceOfCalls);
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138 }
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139
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140 delete stack_.back();
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141 stack_.pop_back();
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142 }
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143
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144
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145 HierarchicalZipWriter::HierarchicalZipWriter(const char* path)
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146 {
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147 writer_.SetOutputPath(path);
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148 writer_.Open();
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149 }
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150
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151 HierarchicalZipWriter::~HierarchicalZipWriter()
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152 {
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153 writer_.Close();
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154 }
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155
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156 void HierarchicalZipWriter::OpenFile(const char* name)
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157 {
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158 std::string p = indexer_.OpenFile(name);
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159 writer_.OpenFile(p.c_str());
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160 }
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161
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162 void HierarchicalZipWriter::OpenDirectory(const char* name)
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163 {
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164 indexer_.OpenDirectory(name);
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165 }
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166
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167 void HierarchicalZipWriter::CloseDirectory()
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168 {
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169 indexer_.CloseDirectory();
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170 }
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171 }