Mercurial > hg > orthanc

annotate OrthancServer/Plugins/Samples/WebSkeleton/Framework/Plugin.cpp @ 5185:0ea402b4d901

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author Sebastien Jodogne <s.jodogne@gmail.com>
date Sat, 25 Mar 2023 12:27:21 +0100
parents 43e613a7756b
children 48b8dae6dc77
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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) 2017-2023 Osimis S.A., Belgium
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6 * Copyright (C) 2021-2023 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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22
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23 #include "../Configuration.h"
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24
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25 #include <orthanc/OrthancCPlugin.h>
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26 #include <string>
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27 #include <stdexcept>
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28 #include <algorithm>
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29 #include <sys/stat.h>
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30
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31 #if ORTHANC_PLUGIN_STANDALONE == 1
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32 // This is an auto-generated file for standalone builds
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33 #include <EmbeddedResources.h>
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34 #endif
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35
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36 static OrthancPluginContext* context = NULL;
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37
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38
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39 static const char* GetMimeType(const std::string& path)
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40 {
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41 size_t dot = path.find_last_of('.');
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42
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43 std::string extension = (dot == std::string::npos) ? "" : path.substr(dot);
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44 std::transform(extension.begin(), extension.end(), extension.begin(), tolower);
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45
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46 if (extension == ".html")
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47 {
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48 return "text/html";
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49 }
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50 else if (extension == ".css")
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51 {
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52 return "text/css";
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53 }
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54 else if (extension == ".js")
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55 {
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56 return "application/javascript";
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57 }
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58 else if (extension == ".gif")
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59 {
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60 return "image/gif";
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61 }
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62 else if (extension == ".json")
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63 {
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64 return "application/json";
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65 }
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66 else if (extension == ".xml")
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67 {
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68 return "application/xml";
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69 }
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70 else if (extension == ".wasm")
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71 {
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72 return "application/wasm";
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73 }
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74 else if (extension == ".png")
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75 {
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76 return "image/png";
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77 }
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78 else if (extension == ".jpg" || extension == ".jpeg")
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79 {
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80 return "image/jpeg";
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81 }
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82 else
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83 {
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84 std::string s = "Unknown MIME type for extension: " + extension;
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85 OrthancPluginLogWarning(context, s.c_str());
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86 return "application/octet-stream";
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87 }
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88 }
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89
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90
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91 static bool ReadFile(std::string& content,
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92 const std::string& path)
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93 {
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94 struct stat s;
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95 if (stat(path.c_str(), &s) != 0 ||
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96 !(s.st_mode & S_IFREG))
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97 {
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98 // Either the path does not exist, or it is not a regular file
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99 return false;
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100 }
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101
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102 FILE* fp = fopen(path.c_str(), "rb");
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103 if (fp == NULL)
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104 {
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105 return false;
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106 }
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107
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108 long size;
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109
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110 if (fseek(fp, 0, SEEK_END) == -1 ||
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111 (size = ftell(fp)) < 0)
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112 {
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113 fclose(fp);
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114 return false;
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115 }
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116
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117 content.resize(size);
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118
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119 if (fseek(fp, 0, SEEK_SET) == -1)
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120 {
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121 fclose(fp);
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122 return false;
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123 }
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124
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125 bool ok = true;
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126
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127 if (size > 0 &&
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128 fread(&content[0], size, 1, fp) != 1)
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129 {
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130 ok = false;
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131 }
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132
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133 fclose(fp);
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134
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135 return ok;
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136 }
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137
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138
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139 #if ORTHANC_PLUGIN_STANDALONE == 1
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140 static OrthancPluginErrorCode ServeStaticResource(OrthancPluginRestOutput* output,
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141 const char* url,
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142 const OrthancPluginHttpRequest* request)
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143 {
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144 if (request->method != OrthancPluginHttpMethod_Get)
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145 {
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146 OrthancPluginSendMethodNotAllowed(context, output, "GET");
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147 return OrthancPluginErrorCode_Success;
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148 }
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149
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150 std::string path = "/" + std::string(request->groups[0]);
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151 const char* mime = GetMimeType(path);
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152
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153 try
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154 {
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155 std::string s;
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156 Orthanc::EmbeddedResources::GetDirectoryResource
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157 (s, Orthanc::EmbeddedResources::STATIC_RESOURCES, path.c_str());
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158
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159 const char* resource = s.size() ? s.c_str() : NULL;
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160 OrthancPluginAnswerBuffer(context, output, resource, s.size(), mime);
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161 }
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162 catch (std::runtime_error&)
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163 {
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164 std::string s = "Unknown static resource in plugin: " + std::string(request->groups[0]);
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165 OrthancPluginLogError(context, s.c_str());
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166 OrthancPluginSendHttpStatusCode(context, output, 404);
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167 }
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168
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169 return OrthancPluginErrorCode_Success;
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170 }
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171 #endif
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172
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173
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174 #if ORTHANC_PLUGIN_STANDALONE == 0
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175 static OrthancPluginErrorCode ServeFolder(OrthancPluginRestOutput* output,
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176 const char* url,
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177 const OrthancPluginHttpRequest* request)
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178 {
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179 if (request->method != OrthancPluginHttpMethod_Get)
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180 {
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181 OrthancPluginSendMethodNotAllowed(context, output, "GET");
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182 return OrthancPluginErrorCode_Success;
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183 }
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184
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185 std::string path = ORTHANC_PLUGIN_RESOURCES_ROOT "/" + std::string(request->groups[0]);
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186 const char* mime = GetMimeType(path);
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187
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188 std::string s;
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189 if (ReadFile(s, path))
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190 {
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191 const char* resource = s.size() ? s.c_str() : NULL;
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192 OrthancPluginAnswerBuffer(context, output, resource, s.size(), mime);
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193 }
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194 else
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195 {
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196 std::string s = "Unknown static resource in plugin: " + std::string(request->groups[0]);
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197 OrthancPluginLogError(context, s.c_str());
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198 OrthancPluginSendHttpStatusCode(context, output, 404);
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199 }
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200
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201 return OrthancPluginErrorCode_Success;
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202 }
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203 #endif
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204
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205
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206 static OrthancPluginErrorCode RedirectRoot(OrthancPluginRestOutput* output,
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207 const char* url,
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208 const OrthancPluginHttpRequest* request)
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209 {
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210 if (request->method != OrthancPluginHttpMethod_Get)
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211 {
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212 OrthancPluginSendMethodNotAllowed(context, output, "GET");
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213 }
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214 else
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215 {
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216 OrthancPluginRedirect(context, output, ORTHANC_PLUGIN_WEB_ROOT "index.html");
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217 }
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218
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219 return OrthancPluginErrorCode_Success;
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220 }
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221
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222
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223 extern "C"
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224 {
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225 ORTHANC_PLUGINS_API int32_t OrthancPluginInitialize(OrthancPluginContext* c)
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226 {
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227 context = c;
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228
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229 /* Check the version of the Orthanc core */
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230 if (OrthancPluginCheckVersion(c) == 0)
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231 {
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232 char info[256];
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233 sprintf(info, "Your version of Orthanc (%s) must be above %d.%d.%d to run this plugin",
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234 c->orthancVersion,
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235 ORTHANC_PLUGINS_MINIMAL_MAJOR_NUMBER,
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236 ORTHANC_PLUGINS_MINIMAL_MINOR_NUMBER,
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237 ORTHANC_PLUGINS_MINIMAL_REVISION_NUMBER);
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238 OrthancPluginLogError(context, info);
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239 return -1;
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240 }
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241
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242 /* Register the callbacks */
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243
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244 #if ORTHANC_PLUGIN_STANDALONE == 1
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245 OrthancPluginLogInfo(context, "Serving static resources (standalone build)");
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246 OrthancPluginRegisterRestCallback(context, ORTHANC_PLUGIN_WEB_ROOT "(.*)", ServeStaticResource);
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247 #else
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248 OrthancPluginLogInfo(context, "Serving resources from folder: " ORTHANC_PLUGIN_RESOURCES_ROOT);
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249 OrthancPluginRegisterRestCallback(context, ORTHANC_PLUGIN_WEB_ROOT "(.*)", ServeFolder);
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250 #endif
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251
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252 OrthancPluginRegisterRestCallback(context, "/", RedirectRoot);
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253
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254 return 0;
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255 }
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256
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257
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258 ORTHANC_PLUGINS_API void OrthancPluginFinalize()
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259 {
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260 }
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261
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262
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263 ORTHANC_PLUGINS_API const char* OrthancPluginGetName()
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264 {
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265 return ORTHANC_PLUGIN_NAME;
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266 }
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267
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268
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269 ORTHANC_PLUGINS_API const char* OrthancPluginGetVersion()
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270 {
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271 return ORTHANC_PLUGIN_VERSION;
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272 }
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273 }