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annotate OrthancFramework/Sources/HttpServer/FilesystemHttpHandler.cpp @ 4529:5774fe497ff2

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fix decoding of images on big-endian architectures
author Sebastien Jodogne <s.jodogne@gmail.com>
date Wed, 24 Feb 2021 21:06:34 +0100
parents d9473bd5ed43
children 7053502fbf97
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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) 2017-2021 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 "FilesystemHttpHandler.h"
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25
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26 #include "../OrthancException.h"
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27 #include "../SystemToolbox.h"
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28 #include "FilesystemHttpSender.h"
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30 #include <boost/filesystem.hpp>
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32
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33 namespace Orthanc
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34 {
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35 struct FilesystemHttpHandler::PImpl
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36 {
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37 UriComponents baseUri_;
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38 boost::filesystem::path root_;
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39 };
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43 static void OutputDirectoryContent(HttpOutput& output,
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44 const HttpToolbox::Arguments& headers,
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45 const UriComponents& uri,
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46 const boost::filesystem::path& p)
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47 {
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48 namespace fs = boost::filesystem;
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49
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50 std::string s;
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51 s += "<html>";
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52 s += " <body>";
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53 s += " <h1>Subdirectories</h1>";
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54 s += " <ul>";
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56 if (uri.size() > 0)
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57 {
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58 std::string h = Toolbox::FlattenUri(uri) + "/..";
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59 s += "<li><a href=\"" + h + "\">..</a></li>";
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60 }
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62 fs::directory_iterator end;
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63 for (fs::directory_iterator it(p) ; it != end; ++it)
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64 {
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65 #if BOOST_HAS_FILESYSTEM_V3 == 1
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66 std::string f = it->path().filename().string();
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67 #else
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68 std::string f = it->path().filename();
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69 #endif
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70
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71 std::string h = Toolbox::FlattenUri(uri) + "/" + f;
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72 if (fs::is_directory(it->status()))
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73 s += "<li><a href=\"" + h + "\">" + f + "</a></li>";
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74 }
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76 s += " </ul>";
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77 s += " <h1>Files</h1>";
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78 s += " <ul>";
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80 for (fs::directory_iterator it(p) ; it != end; ++it)
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81 {
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82 #if BOOST_HAS_FILESYSTEM_V3 == 1
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83 std::string f = it->path().filename().string();
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84 #else
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85 std::string f = it->path().filename();
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86 #endif
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87
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88 std::string h = Toolbox::FlattenUri(uri) + "/" + f;
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89 if (SystemToolbox::IsRegularFile(it->path().string()))
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90 {
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91 s += "<li><a href=\"" + h + "\">" + f + "</a></li>";
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92 }
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93 }
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95 s += " </ul>";
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96 s += " </body>";
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97 s += "</html>";
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99 output.SetContentType(MimeType_Html);
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100 output.Answer(s);
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101 }
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103
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104 FilesystemHttpHandler::FilesystemHttpHandler(const std::string& baseUri,
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105 const std::string& root) : pimpl_(new PImpl)
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106 {
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107 Toolbox::SplitUriComponents(pimpl_->baseUri_, baseUri);
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108 pimpl_->root_ = root;
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109 listDirectoryContent_ = false;
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110
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111 namespace fs = boost::filesystem;
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112 if (!fs::exists(pimpl_->root_) ||
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113 !fs::is_directory(pimpl_->root_))
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114 {
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115 throw OrthancException(ErrorCode_DirectoryExpected);
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116 }
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117 }
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118
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119
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120 bool FilesystemHttpHandler::Handle(HttpOutput& output,
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121 RequestOrigin /*origin*/,
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122 const char* /*remoteIp*/,
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123 const char* /*username*/,
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124 HttpMethod method,
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125 const UriComponents& uri,
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126 const HttpToolbox::Arguments& headers,
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127 const HttpToolbox::GetArguments& arguments,
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128 const void* /*bodyData*/,
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129 size_t /*bodySize*/)
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130 {
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131 if (!Toolbox::IsChildUri(pimpl_->baseUri_, uri))
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132 {
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133 // This URI is not served by this handler
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134 return false;
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135 }
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136
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137 if (method != HttpMethod_Get)
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138 {
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139 output.SendMethodNotAllowed("GET");
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140 return true;
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141 }
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142
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143 namespace fs = boost::filesystem;
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144
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145 fs::path p = pimpl_->root_;
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146 for (size_t i = pimpl_->baseUri_.size(); i < uri.size(); i++)
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147 {
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148 p /= uri[i];
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149 }
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150
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151 if (SystemToolbox::IsRegularFile(p.string()))
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152 {
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153 FilesystemHttpSender sender(p);
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154 sender.SetContentType(SystemToolbox::AutodetectMimeType(p.string()));
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155 output.Answer(sender); // TODO COMPRESSION
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156 }
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157 else if (listDirectoryContent_ &&
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158 fs::exists(p) &&
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159 fs::is_directory(p))
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160 {
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161 OutputDirectoryContent(output, headers, uri, p);
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162 }
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163 else
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164 {
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165 output.SendStatus(HttpStatus_404_NotFound);
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166 }
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168 return true;
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169 }
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170 }