Mercurial > hg > orthanc

annotate Plugins/Samples/WebSkeleton/Framework/Plugin.cpp @ 3994:aba6b6b490ea

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author Sebastien Jodogne <s.jodogne@gmail.com>
date Fri, 05 Jun 2020 17:20:56 +0200
parents 94f4a18a79cc
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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 General Public License as
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9 * published by the Free Software Foundation, either version 3 of the
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10 * 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 * 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 General Public License
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18 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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19 **/
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20
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21
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22 #include "../Configuration.h"
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23
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24 #include <orthanc/OrthancCPlugin.h>
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25 #include <string>
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26 #include <stdexcept>
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27 #include <algorithm>
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28 #include <sys/stat.h>
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29
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30 #if ORTHANC_PLUGIN_STANDALONE == 1
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31 // This is an auto-generated file for standalone builds
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32 #include <EmbeddedResources.h>
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33 #endif
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34
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35 static OrthancPluginContext* context = NULL;
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36
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37
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38 static const char* GetMimeType(const std::string& path)
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39 {
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40 size_t dot = path.find_last_of('.');
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41
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42 std::string extension = (dot == std::string::npos) ? "" : path.substr(dot);
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43 std::transform(extension.begin(), extension.end(), extension.begin(), tolower);
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44
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45 if (extension == ".html")
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46 {
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47 return "text/html";
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48 }
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49 else if (extension == ".css")
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50 {
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51 return "text/css";
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52 }
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53 else if (extension == ".js")
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54 {
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55 return "application/javascript";
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56 }
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57 else if (extension == ".gif")
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58 {
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59 return "image/gif";
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60 }
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61 else if (extension == ".json")
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62 {
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63 return "application/json";
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64 }
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65 else if (extension == ".xml")
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66 {
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67 return "application/xml";
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68 }
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69 else if (extension == ".wasm")
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70 {
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71 return "application/wasm";
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72 }
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73 else if (extension == ".png")
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74 {
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75 return "image/png";
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76 }
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77 else if (extension == ".jpg" || extension == ".jpeg")
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78 {
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79 return "image/jpeg";
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80 }
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81 else
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82 {
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83 std::string s = "Unknown MIME type for extension: " + extension;
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84 OrthancPluginLogWarning(context, s.c_str());
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85 return "application/octet-stream";
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86 }
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87 }
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89
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90 static bool ReadFile(std::string& content,
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91 const std::string& path)
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92 {
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93 struct stat s;
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94 if (stat(path.c_str(), &s) != 0 ||
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95 !(s.st_mode & S_IFREG))
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96 {
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97 // Either the path does not exist, or it is not a regular file
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98 return false;
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99 }
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100
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101 FILE* fp = fopen(path.c_str(), "rb");
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102 if (fp == NULL)
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103 {
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104 return false;
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105 }
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106
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107 long size;
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108
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109 if (fseek(fp, 0, SEEK_END) == -1 ||
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110 (size = ftell(fp)) < 0)
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111 {
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112 fclose(fp);
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113 return false;
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114 }
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115
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116 content.resize(size);
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117
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118 if (fseek(fp, 0, SEEK_SET) == -1)
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119 {
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120 fclose(fp);
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121 return false;
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122 }
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123
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124 bool ok = true;
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125
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126 if (size > 0 &&
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127 fread(&content[0], size, 1, fp) != 1)
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128 {
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129 ok = false;
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130 }
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131
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132 fclose(fp);
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133
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134 return ok;
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135 }
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136
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137
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138 #if ORTHANC_PLUGIN_STANDALONE == 1
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139 static OrthancPluginErrorCode ServeStaticResource(OrthancPluginRestOutput* output,
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140 const char* url,
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141 const OrthancPluginHttpRequest* request)
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142 {
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143 if (request->method != OrthancPluginHttpMethod_Get)
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144 {
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145 OrthancPluginSendMethodNotAllowed(context, output, "GET");
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146 return OrthancPluginErrorCode_Success;
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147 }
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148
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149 std::string path = "/" + std::string(request->groups[0]);
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150 const char* mime = GetMimeType(path);
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151
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152 try
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153 {
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154 std::string s;
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155 Orthanc::EmbeddedResources::GetDirectoryResource
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156 (s, Orthanc::EmbeddedResources::STATIC_RESOURCES, path.c_str());
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157
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158 const char* resource = s.size() ? s.c_str() : NULL;
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159 OrthancPluginAnswerBuffer(context, output, resource, s.size(), mime);
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160 }
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161 catch (std::runtime_error&)
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162 {
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163 std::string s = "Unknown static resource in plugin: " + std::string(request->groups[0]);
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164 OrthancPluginLogError(context, s.c_str());
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165 OrthancPluginSendHttpStatusCode(context, output, 404);
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166 }
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167
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168 return OrthancPluginErrorCode_Success;
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169 }
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170 #endif
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171
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172
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173 #if ORTHANC_PLUGIN_STANDALONE == 0
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174 static OrthancPluginErrorCode ServeFolder(OrthancPluginRestOutput* output,
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175 const char* url,
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176 const OrthancPluginHttpRequest* request)
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177 {
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178 if (request->method != OrthancPluginHttpMethod_Get)
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179 {
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180 OrthancPluginSendMethodNotAllowed(context, output, "GET");
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181 return OrthancPluginErrorCode_Success;
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182 }
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183
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184 std::string path = ORTHANC_PLUGIN_RESOURCES_ROOT "/" + std::string(request->groups[0]);
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185 const char* mime = GetMimeType(path);
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186
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187 std::string s;
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188 if (ReadFile(s, path))
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189 {
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190 const char* resource = s.size() ? s.c_str() : NULL;
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191 OrthancPluginAnswerBuffer(context, output, resource, s.size(), mime);
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192 }
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193 else
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194 {
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195 std::string s = "Unknown static resource in plugin: " + std::string(request->groups[0]);
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196 OrthancPluginLogError(context, s.c_str());
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197 OrthancPluginSendHttpStatusCode(context, output, 404);
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198 }
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199
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200 return OrthancPluginErrorCode_Success;
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201 }
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202 #endif
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203
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204
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205 static OrthancPluginErrorCode RedirectRoot(OrthancPluginRestOutput* output,
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206 const char* url,
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207 const OrthancPluginHttpRequest* request)
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208 {
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209 if (request->method != OrthancPluginHttpMethod_Get)
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210 {
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211 OrthancPluginSendMethodNotAllowed(context, output, "GET");
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212 }
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213 else
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214 {
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215 OrthancPluginRedirect(context, output, ORTHANC_PLUGIN_WEB_ROOT "index.html");
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216 }
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217
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218 return OrthancPluginErrorCode_Success;
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219 }
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220
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221
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222 extern "C"
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223 {
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224 ORTHANC_PLUGINS_API int32_t OrthancPluginInitialize(OrthancPluginContext* c)
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225 {
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226 context = c;
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227
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228 /* Check the version of the Orthanc core */
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229 if (OrthancPluginCheckVersion(c) == 0)
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230 {
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231 char info[256];
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232 sprintf(info, "Your version of Orthanc (%s) must be above %d.%d.%d to run this plugin",
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233 c->orthancVersion,
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234 ORTHANC_PLUGINS_MINIMAL_MAJOR_NUMBER,
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235 ORTHANC_PLUGINS_MINIMAL_MINOR_NUMBER,
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236 ORTHANC_PLUGINS_MINIMAL_REVISION_NUMBER);
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237 OrthancPluginLogError(context, info);
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238 return -1;
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239 }
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240
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241 /* Register the callbacks */
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242
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243 #if ORTHANC_PLUGIN_STANDALONE == 1
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244 OrthancPluginLogInfo(context, "Serving static resources (standalone build)");
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245 OrthancPluginRegisterRestCallback(context, ORTHANC_PLUGIN_WEB_ROOT "(.*)", ServeStaticResource);
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246 #else
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247 OrthancPluginLogInfo(context, "Serving resources from folder: " ORTHANC_PLUGIN_RESOURCES_ROOT);
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248 OrthancPluginRegisterRestCallback(context, ORTHANC_PLUGIN_WEB_ROOT "(.*)", ServeFolder);
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249 #endif
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250
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251 OrthancPluginRegisterRestCallback(context, "/", RedirectRoot);
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252
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253 return 0;
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254 }
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255
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256
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257 ORTHANC_PLUGINS_API void OrthancPluginFinalize()
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258 {
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259 }
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260
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261
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262 ORTHANC_PLUGINS_API const char* OrthancPluginGetName()
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263 {
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264 return ORTHANC_PLUGIN_NAME;
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265 }
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266
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267
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268 ORTHANC_PLUGINS_API const char* OrthancPluginGetVersion()
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269 {
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270 return ORTHANC_PLUGIN_VERSION;
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271 }
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272 }