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annotate Plugins/Engine/PluginsHttpHandler.cpp @ 899:bb0a51561016 plugins

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refactoring
author Sebastien Jodogne <s.jodogne@gmail.com>
date Wed, 18 Jun 2014 13:29:09 +0200
parents bafc9d592632
children 1b92ce45cc8d
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1 /**
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2 * Orthanc - A Lightweight, RESTful DICOM Store
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3 * Copyright (C) 2012-2014 Medical Physics Department, CHU of Liege,
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4 * 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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31
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32
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33 #include "PluginsHttpHandler.h"
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34
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35 #include "../../Core/OrthancException.h"
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36 #include "../../Core/Toolbox.h"
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37 #include "../../Core/HttpServer/HttpOutput.h"
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38
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39 #include <boost/regex.hpp>
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40 #include <glog/logging.h>
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41
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42 namespace Orthanc
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43 {
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44 struct PluginsHttpHandler::PImpl
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45 {
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46 typedef std::pair<boost::regex*, OrthancPluginRestCallback> Callback;
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47 typedef std::list<Callback> Callbacks;
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48
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49 Callbacks callbacks_;
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50 OrthancPluginRestCallback currentCallback_;
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51
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52 PImpl() : currentCallback_(NULL)
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53 {
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54 }
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55 };
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56
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57
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58 PluginsHttpHandler::PluginsHttpHandler()
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59 {
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60 pimpl_.reset(new PImpl);
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61 }
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62
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63
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64 PluginsHttpHandler::~PluginsHttpHandler()
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65 {
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66 for (PImpl::Callbacks::iterator it = pimpl_->callbacks_.begin();
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67 it != pimpl_->callbacks_.end(); it++)
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68 {
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69 delete it->first;
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70 }
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71 }
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72
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73
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74 bool PluginsHttpHandler::IsServedUri(const UriComponents& uri)
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75 {
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76 pimpl_->currentCallback_ = NULL;
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77 std::string tmp = Toolbox::FlattenUri(uri);
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78
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79 for (PImpl::Callbacks::const_iterator it = pimpl_->callbacks_.begin();
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80 it != pimpl_->callbacks_.end(); it++)
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81 {
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82 if (boost::regex_match(tmp, *(it->first)))
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83 {
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84 pimpl_->currentCallback_ = it->second;
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85 return true;
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86 }
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87 }
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88
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89 return false;
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90 }
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91
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92 bool PluginsHttpHandler::Handle(HttpOutput& output,
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93 HttpMethod method,
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94 const UriComponents& uri,
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95 const Arguments& headers,
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96 const Arguments& getArguments,
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97 const std::string& postData)
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98 {
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99 std::string flatUri = Toolbox::FlattenUri(uri);
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100
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101 LOG(INFO) << "Delegating HTTP request to plugin for URI: " << flatUri;
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102
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103 std::vector<const char*> getKeys(getArguments.size());
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104 std::vector<const char*> getValues(getArguments.size());
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105
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106 OrthancPluginHttpRequest request;
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107 memset(&request, 0, sizeof(OrthancPluginHttpRequest));
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108
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109 switch (method)
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110 {
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111 case HttpMethod_Get:
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112 {
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113 request.method = OrthancPluginHttpMethod_Get;
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114
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115 size_t i = 0;
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116 for (Arguments::const_iterator it = getArguments.begin();
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117 it != getArguments.end(); it++, i++)
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118 {
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119 getKeys[i] = it->first.c_str();
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120 getValues[i] = it->second.c_str();
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121 }
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122
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123 break;
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124 }
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125
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126 case HttpMethod_Post:
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127 request.method = OrthancPluginHttpMethod_Post;
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128 break;
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129
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130 case HttpMethod_Delete:
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131 request.method = OrthancPluginHttpMethod_Delete;
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132 break;
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133
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134 case HttpMethod_Put:
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135 request.method = OrthancPluginHttpMethod_Put;
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136 break;
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137
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138 default:
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139 throw OrthancException(ErrorCode_InternalError);
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140 }
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141
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142
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143 request.getCount = getArguments.size();
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144 request.body = (postData.size() ? &postData[0] : NULL);
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145 request.bodySize = postData.size();
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146
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147 if (getArguments.size() > 0)
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148 {
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149 request.getKeys = &getKeys[0];
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150 request.getValues = &getValues[0];
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151 }
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152
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153 assert(pimpl_->currentCallback_ != NULL);
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154 int32_t error = (*pimpl_->currentCallback_) (reinterpret_cast<OrthancPluginRestOutput*>(&output),
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155 flatUri.c_str(),
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156 &request);
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157
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158 if (error < 0)
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159 {
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160 LOG(ERROR) << "Plugin failed with error code " << error;
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161 return false;
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162 }
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163 else
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164 {
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165 if (error > 0)
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166 {
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167 LOG(WARNING) << "Plugin finished with warning code " << error;
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168 }
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169
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170 return true;
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171 }
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172 }
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173
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174
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175 bool PluginsHttpHandler::InvokeService(OrthancPluginService service,
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176 const void* parameters)
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177 {
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178
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179
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180 /*void PluginsManager::RegisterRestCallback(const OrthancPluginContext* context,
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181 const char* pathRegularExpression,
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182 OrthancPluginRestCallback callback)
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183 {
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184 LOG(INFO) << "Plugin has registered a REST callback on: " << pathRegularExpression;
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185 PluginsManager* manager = reinterpret_cast<PluginsManager*>(context->pluginsManager);
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186 manager->restCallbacks_.push_back(std::make_pair(pathRegularExpression, callback));
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187 }*/
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188
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189
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190 /*static void AnswerBuffer(OrthancPluginRestOutput* output,
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191 const char* answer,
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192 uint32_t answerSize,
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193 const char* mimeType)
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194 {
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195 HttpOutput* translatedOutput = reinterpret_cast<HttpOutput*>(output);
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196 translatedOutput->AnswerBufferWithContentType(answer, answerSize, mimeType);
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197 }*/
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198
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199
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200
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201 /*for (PluginsManager::RestCallbacks::const_iterator
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202 it = manager.GetRestCallbacks().begin(); it != manager.GetRestCallbacks().end(); ++it)
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203 {
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204 pimpl_->callbacks_.push_back(std::make_pair(new boost::regex(it->first), it->second));
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205 }*/
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206
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207
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208 switch (service)
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209 {
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210 case OrthancPluginService_RegisterRestCallback:
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211 {
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212 const OrthancPluginRestCallbackParams& p =
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213 *reinterpret_cast<const OrthancPluginRestCallbackParams*>(parameters);
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214
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215 LOG(INFO) << "Plugin has registered a REST callback on: " << p.pathRegularExpression;
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216 pimpl_->callbacks_.push_back(std::make_pair(new boost::regex(p.pathRegularExpression), p.callback));
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217
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218 return true;
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219 }
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220
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221 case OrthancPluginService_AnswerBuffer:
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222 {
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223 const OrthancPluginAnswerBufferParams& p =
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224 *reinterpret_cast<const OrthancPluginAnswerBufferParams*>(parameters);
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225
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226 HttpOutput* translatedOutput = reinterpret_cast<HttpOutput*>(p.output);
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227 translatedOutput->AnswerBufferWithContentType(p.answer, p.answerSize, p.mimeType);
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228
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229 return true;
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230 }
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231
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232 default:
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233 return false;
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234 }
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235 }
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236
897
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237 }