annotate Core/HttpServer/FilesystemHttpHandler.cpp @ 2215:028214a95194

refactoring the worklist sample
author Sebastien Jodogne <s.jodogne@gmail.com>
date Sat, 10 Dec 2016 11:41:17 +0100
parents fd5875662670
children a3a65de1840f
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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 *
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6 * This program is free software: you can redistribute it and/or
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7 * modify it under the terms of the GNU General Public License as
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8 * published by the Free Software Foundation, either version 3 of the
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9 * License, or (at your option) any later version.
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10 *
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11 * In addition, as a special exception, the copyright holders of this
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12 * program give permission to link the code of its release with the
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13 * OpenSSL project's "OpenSSL" library (or with modified versions of it
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14 * that use the same license as the "OpenSSL" library), and distribute
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15 * the linked executables. You must obey the GNU General Public License
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16 * in all respects for all of the code used other than "OpenSSL". If you
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17 * modify file(s) with this exception, you may extend this exception to
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18 * your version of the file(s), but you are not obligated to do so. If
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19 * you do not wish to do so, delete this exception statement from your
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20 * version. If you delete this exception statement from all source files
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21 * in the program, then also delete it here.
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22 *
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23 * This program is distributed in the hope that it will be useful, but
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24 * WITHOUT ANY WARRANTY; without even the implied warranty of
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25 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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26 * General Public License for more details.
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27 *
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28 * You should have received a copy of the GNU General Public License
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29 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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30 **/
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32
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33 #include "../PrecompiledHeaders.h"
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34 #include "FilesystemHttpHandler.h"
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35
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36 #include "../OrthancException.h"
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37 #include "../SystemToolbox.h"
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38 #include "FilesystemHttpSender.h"
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40 #include <boost/filesystem.hpp>
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42
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43 namespace Orthanc
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44 {
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45 struct FilesystemHttpHandler::PImpl
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46 {
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47 UriComponents baseUri_;
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48 boost::filesystem::path root_;
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49 };
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53 static void OutputDirectoryContent(HttpOutput& output,
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54 const IHttpHandler::Arguments& headers,
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55 const UriComponents& uri,
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56 const boost::filesystem::path& p)
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57 {
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58 namespace fs = boost::filesystem;
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60 std::string s;
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61 s += "<html>";
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62 s += " <body>";
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63 s += " <h1>Subdirectories</h1>";
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64 s += " <ul>";
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66 if (uri.size() > 0)
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67 {
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68 std::string h = Toolbox::FlattenUri(uri) + "/..";
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69 s += "<li><a href=\"" + h + "\">..</a></li>";
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70 }
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72 fs::directory_iterator end;
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73 for (fs::directory_iterator it(p) ; it != end; ++it)
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74 {
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75 #if BOOST_HAS_FILESYSTEM_V3 == 1
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76 std::string f = it->path().filename().string();
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77 #else
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78 std::string f = it->path().filename();
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79 #endif
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80
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81 std::string h = Toolbox::FlattenUri(uri) + "/" + f;
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82 if (fs::is_directory(it->status()))
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83 s += "<li><a href=\"" + h + "\">" + f + "</a></li>";
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84 }
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86 s += " </ul>";
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87 s += " <h1>Files</h1>";
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88 s += " <ul>";
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90 for (fs::directory_iterator it(p) ; it != end; ++it)
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91 {
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92 #if BOOST_HAS_FILESYSTEM_V3 == 1
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93 std::string f = it->path().filename().string();
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94 #else
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95 std::string f = it->path().filename();
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96 #endif
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97
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98 std::string h = Toolbox::FlattenUri(uri) + "/" + f;
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99 if (SystemToolbox::IsRegularFile(it->path().string()))
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100 {
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101 s += "<li><a href=\"" + h + "\">" + f + "</a></li>";
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102 }
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103 }
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104
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105 s += " </ul>";
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106 s += " </body>";
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107 s += "</html>";
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108
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109 output.SetContentType("text/html");
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110 output.Answer(s);
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111 }
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114 FilesystemHttpHandler::FilesystemHttpHandler(const std::string& baseUri,
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115 const std::string& root) : pimpl_(new PImpl)
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116 {
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117 Toolbox::SplitUriComponents(pimpl_->baseUri_, baseUri);
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118 pimpl_->root_ = root;
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119 listDirectoryContent_ = false;
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120
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121 namespace fs = boost::filesystem;
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122 if (!fs::exists(pimpl_->root_) ||
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123 !fs::is_directory(pimpl_->root_))
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124 {
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125 throw OrthancException(ErrorCode_DirectoryExpected);
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126 }
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127 }
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128
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129
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130 bool FilesystemHttpHandler::Handle(
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131 HttpOutput& output,
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132 RequestOrigin /*origin*/,
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133 const char* /*remoteIp*/,
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134 const char* /*username*/,
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135 HttpMethod method,
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136 const UriComponents& uri,
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137 const Arguments& headers,
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138 const GetArguments& arguments,
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139 const char* /*bodyData*/,
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140 size_t /*bodySize*/)
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141 {
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142 if (!Toolbox::IsChildUri(pimpl_->baseUri_, uri))
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143 {
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144 // This URI is not served by this handler
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145 return false;
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146 }
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147
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148 if (method != HttpMethod_Get)
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149 {
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150 output.SendMethodNotAllowed("GET");
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151 return true;
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152 }
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153
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154 namespace fs = boost::filesystem;
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155
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156 fs::path p = pimpl_->root_;
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157 for (size_t i = pimpl_->baseUri_.size(); i < uri.size(); i++)
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158 {
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159 p /= uri[i];
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160 }
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161
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162 if (SystemToolbox::IsRegularFile(p.string()))
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163 {
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164 FilesystemHttpSender sender(p);
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165 output.Answer(sender); // TODO COMPRESSION
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166 }
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167 else if (listDirectoryContent_ &&
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168 fs::exists(p) &&
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169 fs::is_directory(p))
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170 {
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171 OutputDirectoryContent(output, headers, uri, p);
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172 }
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173 else
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174 {
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175 output.SendStatus(HttpStatus_404_NotFound);
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176 }
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177
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178 return true;
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179 }
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180 }