Mercurial > hg > orthanc

annotate Core/RestApi/RestApi.cpp @ 3848:44bfcfdf42e8 transcoding

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integration mainline->transcoding
author Sebastien Jodogne <s.jodogne@gmail.com>
date Mon, 20 Apr 2020 14:04:14 +0200
parents 94f4a18a79cc
children
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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 * In addition, as a special exception, the copyright holders of this
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13 * program give permission to link the code of its release with the
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14 * OpenSSL project's "OpenSSL" library (or with modified versions of it
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15 * that use the same license as the "OpenSSL" library), and distribute
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16 * the linked executables. You must obey the GNU General Public License
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17 * in all respects for all of the code used other than "OpenSSL". If you
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18 * modify file(s) with this exception, you may extend this exception to
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19 * your version of the file(s), but you are not obligated to do so. If
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20 * you do not wish to do so, delete this exception statement from your
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21 * version. If you delete this exception statement from all source files
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22 * in the program, then also delete it here.
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23 *
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24 * This program is distributed in the hope that it will be useful, but
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25 * WITHOUT ANY WARRANTY; without even the implied warranty of
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26 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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27 * General Public License for more details.
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28 *
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29 * You should have received a copy of the GNU General Public License
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30 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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31 **/
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32
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33
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34 #include "../PrecompiledHeaders.h"
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35 #include "RestApi.h"
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36
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37 #include "../Logging.h"
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38
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39 #include <stdlib.h> // To define "_exit()" under Windows
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40 #include <stdio.h>
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41
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42 namespace Orthanc
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43 {
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44 namespace
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45 {
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46 // Anonymous namespace to avoid clashes between compilation modules
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47 class HttpHandlerVisitor : public RestApiHierarchy::IVisitor
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48 {
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49 private:
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50 RestApi& api_;
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51 RestApiOutput& output_;
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52 RequestOrigin origin_;
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53 const char* remoteIp_;
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54 const char* username_;
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55 HttpMethod method_;
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56 const IHttpHandler::Arguments& headers_;
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57 const IHttpHandler::Arguments& getArguments_;
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58 const void* bodyData_;
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59 size_t bodySize_;
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60
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61 public:
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62 HttpHandlerVisitor(RestApi& api,
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63 RestApiOutput& output,
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64 RequestOrigin origin,
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65 const char* remoteIp,
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66 const char* username,
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67 HttpMethod method,
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68 const IHttpHandler::Arguments& headers,
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69 const IHttpHandler::Arguments& getArguments,
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70 const void* bodyData,
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71 size_t bodySize) :
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72 api_(api),
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73 output_(output),
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74 origin_(origin),
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75 remoteIp_(remoteIp),
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76 username_(username),
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77 method_(method),
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78 headers_(headers),
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79 getArguments_(getArguments),
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80 bodyData_(bodyData),
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81 bodySize_(bodySize)
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82 {
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83 }
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84
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85 virtual bool Visit(const RestApiHierarchy::Resource& resource,
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86 const UriComponents& uri,
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87 const IHttpHandler::Arguments& components,
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88 const UriComponents& trailing)
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89 {
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90 if (resource.HasHandler(method_))
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91 {
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92 switch (method_)
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93 {
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94 case HttpMethod_Get:
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95 {
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96 RestApiGetCall call(output_, api_, origin_, remoteIp_, username_,
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97 headers_, components, trailing, uri, getArguments_);
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98 resource.Handle(call);
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99 return true;
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100 }
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101
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102 case HttpMethod_Post:
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103 {
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104 RestApiPostCall call(output_, api_, origin_, remoteIp_, username_,
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105 headers_, components, trailing, uri, bodyData_, bodySize_);
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106 resource.Handle(call);
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107 return true;
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108 }
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109
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110 case HttpMethod_Delete:
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111 {
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112 RestApiDeleteCall call(output_, api_, origin_, remoteIp_, username_,
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113 headers_, components, trailing, uri);
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114 resource.Handle(call);
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115 return true;
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116 }
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117
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118 case HttpMethod_Put:
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119 {
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120 RestApiPutCall call(output_, api_, origin_, remoteIp_, username_,
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121 headers_, components, trailing, uri, bodyData_, bodySize_);
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122 resource.Handle(call);
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123 return true;
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124 }
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125
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126 default:
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127 return false;
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128 }
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129 }
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130
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131 return false;
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132 }
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133 };
209
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134 }
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135
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136
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137
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138 static void AddMethod(std::string& target,
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139 const std::string& method)
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140 {
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141 if (target.size() > 0)
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142 target += "," + method;
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143 else
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144 target = method;
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145 }
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146
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147 static std::string MethodsToString(const std::set<HttpMethod>& methods)
209
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148 {
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149 std::string s;
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150
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151 if (methods.find(HttpMethod_Get) != methods.end())
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152 {
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153 AddMethod(s, "GET");
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154 }
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155
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156 if (methods.find(HttpMethod_Post) != methods.end())
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157 {
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158 AddMethod(s, "POST");
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159 }
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160
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161 if (methods.find(HttpMethod_Put) != methods.end())
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162 {
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163 AddMethod(s, "PUT");
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164 }
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165
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166 if (methods.find(HttpMethod_Delete) != methods.end())
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167 {
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168 AddMethod(s, "DELETE");
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169 }
209
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170
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171 return s;
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172 }
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173
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174
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175
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176 bool RestApi::Handle(HttpOutput& output,
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177 RequestOrigin origin,
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178 const char* remoteIp,
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179 const char* username,
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180 HttpMethod method,
209
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181 const UriComponents& uri,
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182 const Arguments& headers,
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183 const GetArguments& getArguments,
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184 const void* bodyData,
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185 size_t bodySize)
209
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186 {
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187 RestApiOutput wrappedOutput(output, method);
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188
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189 #if ORTHANC_ENABLE_PUGIXML == 1
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190 {
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191 // Look if the client wishes XML answers instead of JSON
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192 // http://www.w3.org/Protocols/HTTP/HTRQ_Headers.html#z3
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193 Arguments::const_iterator it = headers.find("accept");
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194 if (it != headers.end())
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195 {
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196 std::vector<std::string> accepted;
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197 Toolbox::TokenizeString(accepted, it->second, ';');
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198 for (size_t i = 0; i < accepted.size(); i++)
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199 {
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200 if (accepted[i] == MIME_XML)
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201 {
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202 wrappedOutput.SetConvertJsonToXml(true);
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203 }
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204
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205 if (accepted[i] == MIME_JSON)
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206 {
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207 wrappedOutput.SetConvertJsonToXml(false);
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208 }
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209 }
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210 }
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211 }
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212 #endif
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213
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diff changeset
214 Arguments compiled;
1441
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diff changeset
215 HttpToolbox::CompileGetArguments(compiled, getArguments);
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216
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217 HttpHandlerVisitor visitor(*this, wrappedOutput, origin, remoteIp, username,
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218 method, headers, compiled, bodyData, bodySize);
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219
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diff changeset
220 if (root_.LookupResource(uri, visitor))
901
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221 {
1113
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diff changeset
222 wrappedOutput.Finalize();
980
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223 return true;
901
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224 }
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225
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diff changeset
226 std::set<HttpMethod> methods;
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diff changeset
227 root_.GetAcceptedMethods(methods, uri);
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228
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diff changeset
229 if (methods.empty())
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230 {
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231 return false; // This URI is not served by this REST API
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232 }
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233 else
209
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234 {
477
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diff changeset
235 LOG(INFO) << "REST method " << EnumerationToString(method)
416
1188cb0ddaa5 http method faking
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diff changeset
236 << " not allowed on: " << Toolbox::FlattenUri(uri);
980
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diff changeset
237
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diff changeset
238 output.SendMethodNotAllowed(MethodsToString(methods));
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239
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diff changeset
240 return true;
209
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241 }
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242 }
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243
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244 void RestApi::Register(const std::string& path,
974
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diff changeset
245 RestApiGetCall::Handler handler)
209
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diff changeset
246 {
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diff changeset
247 root_.Register(path, handler);
209
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248 }
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249
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diff changeset
250 void RestApi::Register(const std::string& path,
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diff changeset
251 RestApiPutCall::Handler handler)
209
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diff changeset
252 {
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diff changeset
253 root_.Register(path, handler);
209
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254 }
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255
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256 void RestApi::Register(const std::string& path,
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diff changeset
257 RestApiPostCall::Handler handler)
209
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diff changeset
258 {
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diff changeset
259 root_.Register(path, handler);
209
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diff changeset
260 }
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261
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diff changeset
262 void RestApi::Register(const std::string& path,
974
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diff changeset
263 RestApiDeleteCall::Handler handler)
209
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diff changeset
264 {
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diff changeset
265 root_.Register(path, handler);
209
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266 }
1063
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diff changeset
267
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diff changeset
268 void RestApi::AutoListChildren(RestApiGetCall& call)
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diff changeset
269 {
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diff changeset
270 RestApi& context = call.GetContext();
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diff changeset
271
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Sebastien Jodogne <s.jodogne@gmail.com>
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272 Json::Value directory;
0332e6e8c679 Fix automated generation of the list of resource children in the REST API
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parents: 1046
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273 if (context.root_.GetDirectory(directory, call.GetFullUri()))
0332e6e8c679 Fix automated generation of the list of resource children in the REST API
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1046
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274 {
0332e6e8c679 Fix automated generation of the list of resource children in the REST API
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parents: 1046
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275 call.GetOutput().AnswerJson(directory);
0332e6e8c679 Fix automated generation of the list of resource children in the REST API
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1046
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276 }
0332e6e8c679 Fix automated generation of the list of resource children in the REST API
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1046
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277 }
209
9960642f0f45 abstraction of RestApi
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278 }