Mercurial > hg > orthanc
annotate OrthancServer/Plugins/Samples/ServeFolders/Plugin.cpp @ 5563:e02cdf358905
fix plugin init wrt logging
author | Alain Mazy <am@orthanc.team> |
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date | Tue, 23 Apr 2024 10:26:48 +0200 |
parents | 0b18690c1935 |
children | f0dc99bc811c |
rev | line source |
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1 /** |
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2 * Orthanc - A Lightweight, RESTful DICOM Store |
1900 | 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) 2017-2024 Osimis S.A., Belgium |
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6 * Copyright (C) 2021-2024 Sebastien Jodogne, ICTEAM UCLouvain, Belgium |
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7 * |
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8 * This program is free software: you can redistribute it and/or |
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9 * modify it under the terms of the GNU General Public License as |
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10 * published by the Free Software Foundation, either version 3 of the |
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11 * License, or (at your option) any later version. |
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12 * |
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13 * This program is distributed in the hope that it will be useful, but |
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14 * WITHOUT ANY WARRANTY; without even the implied warranty of |
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15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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16 * General Public License for more details. |
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17 * |
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18 * You should have received a copy of the GNU General Public License |
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19 * along with this program. If not, see <http://www.gnu.org/licenses/>. |
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20 **/ |
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21 |
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22 |
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23 #define SERVE_FOLDERS_NAME "serve-folders" |
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24 |
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25 #include "../Common/OrthancPluginCppWrapper.h" |
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26 #include "../../../OrthancFramework/Sources/Logging.h" |
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27 |
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28 #include <json/value.h> |
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29 #include <boost/filesystem.hpp> |
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30 #include <boost/date_time/posix_time/posix_time.hpp> |
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31 |
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32 |
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33 #if HAS_ORTHANC_EXCEPTION == 1 |
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34 # error The macro HAS_ORTHANC_EXCEPTION must be set to 0 to compile this plugin |
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35 #endif |
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36 |
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37 |
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38 |
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39 static std::map<std::string, std::string> extensions_; |
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40 static std::map<std::string, std::string> folders_; |
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41 static const char* INDEX_URI = "/app/plugin-serve-folders.html"; |
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42 static bool allowCache_ = false; |
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43 static bool generateETag_ = true; |
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44 |
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45 |
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46 static void SetHttpHeaders(OrthancPluginRestOutput* output) |
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47 { |
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48 if (!allowCache_) |
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49 { |
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50 // http://stackoverflow.com/a/2068407/881731 |
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51 OrthancPluginContext* context = OrthancPlugins::GetGlobalContext(); |
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52 OrthancPluginSetHttpHeader(context, output, "Cache-Control", "no-cache, no-store, must-revalidate"); |
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53 OrthancPluginSetHttpHeader(context, output, "Pragma", "no-cache"); |
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54 OrthancPluginSetHttpHeader(context, output, "Expires", "0"); |
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55 } |
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56 } |
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57 |
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58 |
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59 static void RegisterDefaultExtensions() |
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60 { |
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61 extensions_["css"] = "text/css"; |
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62 extensions_["gif"] = "image/gif"; |
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63 extensions_["html"] = "text/html"; |
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64 extensions_["jpeg"] = "image/jpeg"; |
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65 extensions_["jpg"] = "image/jpeg"; |
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66 extensions_["js"] = "application/javascript"; |
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67 extensions_["json"] = "application/json"; |
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68 extensions_["map"] = "application/octet-stream"; // https://stackoverflow.com/a/19912684/881731 |
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69 extensions_["nexe"] = "application/x-nacl"; |
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70 extensions_["nmf"] = "application/json"; |
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71 extensions_["pdf"] = "application/pdf"; |
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72 extensions_["pexe"] = "application/x-pnacl"; |
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73 extensions_["png"] = "image/png"; |
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74 extensions_["svg"] = "image/svg+xml"; |
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75 extensions_["wasm"] = "application/wasm"; |
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76 extensions_["woff"] = "application/x-font-woff"; |
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77 extensions_["woff2"] = "font/woff2"; |
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78 extensions_["xml"] = "application/xml"; |
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79 } |
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80 |
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81 |
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82 static std::string GetMimeType(const std::string& path) |
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83 { |
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84 size_t dot = path.find_last_of('.'); |
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85 |
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86 std::string extension = (dot == std::string::npos) ? "" : path.substr(dot + 1); |
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87 std::transform(extension.begin(), extension.end(), extension.begin(), tolower); |
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88 |
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89 std::map<std::string, std::string>::const_iterator found = extensions_.find(extension); |
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90 |
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91 if (found != extensions_.end() && |
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92 !found->second.empty()) |
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93 { |
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94 return found->second; |
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95 } |
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96 else |
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97 { |
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98 LOG(WARNING) << "ServeFolders: Unknown MIME type for extension \"" << extension << "\""; |
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99 return "application/octet-stream"; |
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100 } |
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101 } |
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102 |
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103 |
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104 static bool LookupFolder(std::string& folder, |
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105 OrthancPluginRestOutput* output, |
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106 const OrthancPluginHttpRequest* request) |
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107 { |
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108 const std::string uri = request->groups[0]; |
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109 |
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110 std::map<std::string, std::string>::const_iterator found = folders_.find(uri); |
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111 if (found == folders_.end()) |
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112 { |
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113 LOG(ERROR) << "Unknown URI in plugin server-folders: " << uri; |
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114 OrthancPluginSendHttpStatusCode(OrthancPlugins::GetGlobalContext(), output, 404); |
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115 return false; |
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116 } |
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117 else |
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118 { |
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119 folder = found->second; |
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120 return true; |
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121 } |
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122 } |
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123 |
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124 |
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125 static void Answer(OrthancPluginRestOutput* output, |
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126 const char* content, |
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127 size_t size, |
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128 const std::string& mime) |
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129 { |
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130 if (generateETag_) |
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131 { |
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132 OrthancPlugins::OrthancString md5; |
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133 md5.Assign(OrthancPluginComputeMd5(OrthancPlugins::GetGlobalContext(), content, size)); |
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134 |
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135 std::string etag = "\"" + std::string(md5.GetContent()) + "\""; |
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136 OrthancPluginSetHttpHeader(OrthancPlugins::GetGlobalContext(), output, "ETag", etag.c_str()); |
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137 } |
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138 |
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139 SetHttpHeaders(output); |
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140 OrthancPluginAnswerBuffer(OrthancPlugins::GetGlobalContext(), output, content, size, mime.c_str()); |
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141 } |
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142 |
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143 |
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144 void ServeFolder(OrthancPluginRestOutput* output, |
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145 const char* url, |
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146 const OrthancPluginHttpRequest* request) |
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147 { |
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148 namespace fs = boost::filesystem; |
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149 |
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150 if (request->method != OrthancPluginHttpMethod_Get) |
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151 { |
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152 OrthancPluginSendMethodNotAllowed(OrthancPlugins::GetGlobalContext(), output, "GET"); |
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153 return; |
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154 } |
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155 |
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156 std::string folder; |
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157 |
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158 if (LookupFolder(folder, output, request)) |
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159 { |
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160 const fs::path item(request->groups[1]); |
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161 const fs::path parent((fs::path(folder) / item).parent_path()); |
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162 |
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163 if (item.filename().string() == "index.html" && |
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164 fs::is_directory(parent) && |
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165 !fs::is_regular_file(fs::path(folder) / item)) |
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166 { |
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167 // On-the-fly generation of an "index.html" |
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168 std::string s; |
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169 s += "<html>\n"; |
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170 s += " <body>\n"; |
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171 s += " <ul>\n"; |
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172 |
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173 fs::directory_iterator end; |
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174 |
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175 for (fs::directory_iterator it(parent) ; it != end; ++it) |
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176 { |
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177 if (fs::is_directory(it->status())) |
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178 { |
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179 std::string f = it->path().filename().string(); |
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180 s += " <li><a href=\"" + f + "/index.html\">" + f + "/</a></li>\n"; |
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181 } |
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182 } |
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183 |
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184 for (fs::directory_iterator it(parent) ; it != end; ++it) |
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185 { |
1911 | 186 fs::file_type type = it->status().type(); |
187 | |
188 if (type == fs::regular_file || | |
189 type == fs::reparse_file) // cf. BitBucket issue #11 | |
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190 { |
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191 std::string f = it->path().filename().string(); |
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192 s += " <li><a href=\"" + f + "\">" + f + "</a></li>\n"; |
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193 } |
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194 } |
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195 |
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196 s += " </ul>\n"; |
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197 s += " </body>\n"; |
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198 s += "</html>\n"; |
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199 |
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200 Answer(output, s.c_str(), s.size(), "text/html"); |
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201 } |
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202 else |
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203 { |
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204 std::string path = folder + "/" + item.string(); |
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205 std::string mime = GetMimeType(path); |
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206 |
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207 OrthancPlugins::MemoryBuffer content; |
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208 |
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209 try |
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210 { |
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211 content.ReadFile(path); |
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212 } |
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213 catch (...) |
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214 { |
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215 ORTHANC_PLUGINS_THROW_EXCEPTION(InexistentFile); |
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216 } |
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217 |
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218 boost::posix_time::ptime lastModification = |
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219 boost::posix_time::from_time_t(fs::last_write_time(path)); |
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220 std::string t = boost::posix_time::to_iso_string(lastModification); |
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221 OrthancPluginSetHttpHeader(OrthancPlugins::GetGlobalContext(), |
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222 output, "Last-Modified", t.c_str()); |
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223 |
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224 Answer(output, content.GetData(), content.GetSize(), mime); |
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225 } |
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226 } |
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227 } |
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228 |
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229 |
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230 void ListServedFolders(OrthancPluginRestOutput* output, |
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231 const char* url, |
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232 const OrthancPluginHttpRequest* request) |
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233 { |
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234 if (request->method != OrthancPluginHttpMethod_Get) |
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235 { |
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236 OrthancPluginSendMethodNotAllowed(OrthancPlugins::GetGlobalContext(), output, "GET"); |
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237 return; |
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238 } |
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239 |
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240 std::string s = "<html><body><h1>Additional folders served by Orthanc</h1>\n"; |
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241 |
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242 if (folders_.empty()) |
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243 { |
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244 s += "<p>Empty section <tt>ServeFolders</tt> in your configuration file: No additional folder is served.</p>\n"; |
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245 } |
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246 else |
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247 { |
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248 s += "<ul>\n"; |
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249 for (std::map<std::string, std::string>::const_iterator |
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250 it = folders_.begin(); it != folders_.end(); ++it) |
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251 { |
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252 // The URI is relative to INDEX_URI ("/app/plugin-serve-folders.html") |
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253 s += "<li><a href=\"../" + it->first + "/index.html\">" + it->first + "</li>\n"; |
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254 } |
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255 |
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256 s += "</ul>\n"; |
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257 } |
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258 |
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259 s += "</body></html>\n"; |
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260 |
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261 Answer(output, s.c_str(), s.size(), "text/html"); |
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262 } |
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263 |
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264 |
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265 static void ConfigureFolders(const Json::Value& folders) |
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266 { |
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267 if (folders.type() != Json::objectValue) |
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268 { |
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269 LOG(ERROR) << "The list of folders to be served is badly formatted (must be a JSON object)"; |
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270 ORTHANC_PLUGINS_THROW_EXCEPTION(BadFileFormat); |
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271 } |
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272 |
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273 Json::Value::Members members = folders.getMemberNames(); |
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274 |
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275 // Register the callback for each base URI |
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276 for (Json::Value::Members::const_iterator |
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277 it = members.begin(); it != members.end(); ++it) |
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278 { |
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279 if (folders[*it].type() != Json::stringValue) |
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280 { |
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281 LOG(ERROR) << "The folder to be served \"" << *it << |
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282 "\" must be associated with a string value (its mapped URI)"; |
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283 ORTHANC_PLUGINS_THROW_EXCEPTION(BadFileFormat); |
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284 } |
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285 |
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286 std::string baseUri = *it; |
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287 |
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288 // Remove the heading and trailing slashes in the root URI, if any |
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289 while (!baseUri.empty() && |
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290 *baseUri.begin() == '/') |
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291 { |
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292 baseUri = baseUri.substr(1); |
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293 } |
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294 |
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295 while (!baseUri.empty() && |
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296 *baseUri.rbegin() == '/') |
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297 { |
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298 baseUri.resize(baseUri.size() - 1); |
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299 } |
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300 |
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301 if (baseUri.empty()) |
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302 { |
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303 LOG(ERROR) << "The URI of a folder to be served cannot be empty"; |
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304 ORTHANC_PLUGINS_THROW_EXCEPTION(BadFileFormat); |
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305 } |
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306 |
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307 // Check whether the source folder exists and is indeed a directory |
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308 const std::string folder = folders[*it].asString(); |
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309 if (!boost::filesystem::is_directory(folder)) |
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310 { |
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311 LOG(ERROR) << "Trying to serve an inexistent folder: " + folder; |
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312 ORTHANC_PLUGINS_THROW_EXCEPTION(InexistentFile); |
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313 } |
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314 |
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315 folders_[baseUri] = folder; |
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316 |
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317 // Register the callback to serve the folder |
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318 { |
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319 const std::string regex = "/(" + baseUri + ")/(.*)"; |
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320 OrthancPlugins::RegisterRestCallback<ServeFolder>(regex.c_str(), true); |
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321 } |
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322 } |
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323 } |
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324 |
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325 |
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326 static void ConfigureExtensions(const Json::Value& extensions) |
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327 { |
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328 if (extensions.type() != Json::objectValue) |
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329 { |
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330 LOG(ERROR) << "The list of extensions is badly formatted (must be a JSON object)"; |
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331 ORTHANC_PLUGINS_THROW_EXCEPTION(BadFileFormat); |
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332 } |
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333 |
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334 Json::Value::Members members = extensions.getMemberNames(); |
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335 |
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336 for (Json::Value::Members::const_iterator |
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337 it = members.begin(); it != members.end(); ++it) |
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338 { |
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339 if (extensions[*it].type() != Json::stringValue) |
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340 { |
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341 LOG(ERROR) << "The file extension \"" << *it << |
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342 "\" must be associated with a string value (its MIME type)"; |
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343 ORTHANC_PLUGINS_THROW_EXCEPTION(BadFileFormat); |
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344 } |
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345 |
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346 const std::string& mime = extensions[*it].asString(); |
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347 |
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348 std::string name = *it; |
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349 |
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350 if (!name.empty() && |
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351 name[0] == '.') |
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352 { |
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353 name = name.substr(1); // Remove the leading dot "." |
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354 } |
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355 |
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356 extensions_[name] = mime; |
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357 |
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358 if (mime.empty()) |
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359 { |
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360 LOG(WARNING) << "ServeFolders: Removing MIME type for file extension \"." << name << "\""; |
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361 } |
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362 else |
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363 { |
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364 LOG(WARNING) << "ServeFolders: Associating file extension \"." << name << "\" with MIME type \"" << mime << "\""; |
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365 } |
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366 } |
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367 } |
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368 |
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369 |
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370 static void ReadConfiguration() |
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371 { |
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372 OrthancPlugins::OrthancConfiguration configuration; |
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373 |
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374 { |
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375 OrthancPlugins::OrthancConfiguration globalConfiguration; |
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376 globalConfiguration.GetSection(configuration, "ServeFolders"); |
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377 } |
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378 |
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379 if (!configuration.IsSection("Folders")) |
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380 { |
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381 // This is a basic configuration |
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382 ConfigureFolders(configuration.GetJson()); |
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383 } |
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384 else |
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385 { |
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386 // This is an advanced configuration |
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387 ConfigureFolders(configuration.GetJson()["Folders"]); |
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388 |
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389 bool tmp; |
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390 |
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391 if (configuration.LookupBooleanValue(tmp, "AllowCache")) |
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392 { |
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393 allowCache_ = tmp; |
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394 LOG(WARNING) << "ServeFolders: Requesting the HTTP client to " << (tmp ? "enable" : "disable") << " its caching mechanism"; |
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395 } |
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396 |
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397 if (configuration.LookupBooleanValue(tmp, "GenerateETag")) |
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398 { |
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399 generateETag_ = tmp; |
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400 LOG(WARNING) << "ServeFolders: The computation of an ETag for the served resources is " << (tmp ? "enabled" : "disabled"); |
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401 } |
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402 |
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403 OrthancPlugins::OrthancConfiguration extensions; |
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404 configuration.GetSection(extensions, "Extensions"); |
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405 ConfigureExtensions(extensions.GetJson()); |
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406 } |
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407 |
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408 if (folders_.empty()) |
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409 { |
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410 LOG(WARNING) << "ServeFolders: Empty configuration file: No additional folder will be served!"; |
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411 } |
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412 } |
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413 |
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414 |
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415 extern "C" |
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416 { |
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417 ORTHANC_PLUGINS_API int32_t OrthancPluginInitialize(OrthancPluginContext* context) |
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418 { |
5563 | 419 OrthancPlugins::SetGlobalContext(context, SERVE_FOLDERS_NAME); |
420 Orthanc::Logging::InitializePluginContext(context, SERVE_FOLDERS_NAME); | |
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421 |
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422 /* Check the version of the Orthanc core */ |
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423 if (OrthancPluginCheckVersion(context) == 0) |
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424 { |
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425 OrthancPlugins::ReportMinimalOrthancVersion(ORTHANC_PLUGINS_MINIMAL_MAJOR_NUMBER, |
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426 ORTHANC_PLUGINS_MINIMAL_MINOR_NUMBER, |
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427 ORTHANC_PLUGINS_MINIMAL_REVISION_NUMBER); |
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428 return -1; |
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429 } |
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430 |
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431 RegisterDefaultExtensions(); |
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432 OrthancPluginSetDescription2(context, SERVE_FOLDERS_NAME, "Serve additional folders with the HTTP server of Orthanc."); |
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433 OrthancPluginSetRootUri2(context, SERVE_FOLDERS_NAME, INDEX_URI); |
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434 OrthancPlugins::RegisterRestCallback<ListServedFolders>(INDEX_URI, true); |
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435 |
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436 try |
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437 { |
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438 ReadConfiguration(); |
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439 } |
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440 catch (OrthancPlugins::PluginException& e) |
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441 { |
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SDK: added OrthancPluginLogMessage to display plugin name + file and line from plugin
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442 LOG(ERROR) << "Error while initializing the ServeFolders plugin: " << e.What(context); |
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Sample plugin: Serve folders
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443 } |
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444 |
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445 return 0; |
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446 } |
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447 |
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448 |
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449 ORTHANC_PLUGINS_API void OrthancPluginFinalize() |
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450 { |
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451 } |
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452 |
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453 |
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454 ORTHANC_PLUGINS_API const char* OrthancPluginGetName() |
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455 { |
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deprecating OrthancPluginSetDescription2(), OrthancPluginExtendOrthancExplorer2() and OrthancPluginSetRootUri2()
Sebastien Jodogne <s.jodogne@gmail.com>
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5485
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456 return SERVE_FOLDERS_NAME; |
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457 } |
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458 |
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459 |
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460 ORTHANC_PLUGINS_API const char* OrthancPluginGetVersion() |
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461 { |
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version in ServerFolders plugin
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462 return SERVE_FOLDERS_VERSION; |
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463 } |
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464 } |