Mercurial > hg > orthanc
annotate Core/RestApi/RestApi.cpp @ 1194:7d2c8d28ad87
generalization
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Thu, 23 Oct 2014 13:12:23 +0200 |
parents | ba5c0908600c |
children | 6e7e5ed91c2d |
rev | line source |
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209 | 1 /** |
2 * Orthanc - A Lightweight, RESTful DICOM Store | |
689 | 3 * Copyright (C) 2012-2014 Medical Physics Department, CHU of Liege, |
209 | 4 * Belgium |
5 * | |
6 * This program is free software: you can redistribute it and/or | |
7 * modify it under the terms of the GNU General Public License as | |
8 * published by the Free Software Foundation, either version 3 of the | |
9 * License, or (at your option) any later version. | |
10 * | |
11 * In addition, as a special exception, the copyright holders of this | |
12 * program give permission to link the code of its release with the | |
13 * OpenSSL project's "OpenSSL" library (or with modified versions of it | |
14 * that use the same license as the "OpenSSL" library), and distribute | |
15 * the linked executables. You must obey the GNU General Public License | |
16 * in all respects for all of the code used other than "OpenSSL". If you | |
17 * modify file(s) with this exception, you may extend this exception to | |
18 * your version of the file(s), but you are not obligated to do so. If | |
19 * you do not wish to do so, delete this exception statement from your | |
20 * version. If you delete this exception statement from all source files | |
21 * in the program, then also delete it here. | |
22 * | |
23 * This program is distributed in the hope that it will be useful, but | |
24 * WITHOUT ANY WARRANTY; without even the implied warranty of | |
25 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
26 * General Public License for more details. | |
27 * | |
28 * You should have received a copy of the GNU General Public License | |
29 * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
30 **/ | |
31 | |
32 | |
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33 #include "../PrecompiledHeaders.h" |
209 | 34 #include "RestApi.h" |
35 | |
249 | 36 #include <stdlib.h> // To define "_exit()" under Windows |
210
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37 #include <glog/logging.h> |
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38 |
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39 #include <stdio.h> |
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40 |
209 | 41 namespace Orthanc |
42 { | |
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43 namespace |
209 | 44 { |
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45 // Anonymous namespace to avoid clashes between compilation modules |
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46 class HttpHandlerVisitor : public RestApiHierarchy::IVisitor |
209 | 47 { |
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48 private: |
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49 RestApi& api_; |
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50 RestApiOutput& output_; |
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51 HttpMethod method_; |
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52 const HttpHandler::Arguments& headers_; |
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53 const HttpHandler::Arguments& getArguments_; |
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54 const std::string& postData_; |
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55 |
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56 public: |
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57 HttpHandlerVisitor(RestApi& api, |
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58 RestApiOutput& output, |
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59 HttpMethod method, |
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60 const HttpHandler::Arguments& headers, |
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61 const HttpHandler::Arguments& getArguments, |
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62 const std::string& postData) : |
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63 api_(api), |
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64 output_(output), |
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65 method_(method), |
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66 headers_(headers), |
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67 getArguments_(getArguments), |
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68 postData_(postData) |
209 | 69 { |
70 } | |
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71 |
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72 virtual bool Visit(const RestApiHierarchy::Resource& resource, |
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73 const UriComponents& uri, |
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74 const HttpHandler::Arguments& components, |
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75 const UriComponents& trailing) |
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76 { |
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77 if (resource.HasHandler(method_)) |
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78 { |
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79 switch (method_) |
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80 { |
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81 case HttpMethod_Get: |
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82 { |
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83 RestApiGetCall call(output_, api_, headers_, components, trailing, uri, getArguments_); |
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84 resource.Handle(call); |
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85 return true; |
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86 } |
209 | 87 |
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88 case HttpMethod_Post: |
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89 { |
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90 RestApiPostCall call(output_, api_, headers_, components, trailing, uri, postData_); |
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91 resource.Handle(call); |
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92 return true; |
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93 } |
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94 |
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95 case HttpMethod_Delete: |
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96 { |
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97 RestApiDeleteCall call(output_, api_, headers_, components, trailing, uri); |
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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_Put: |
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103 { |
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104 RestApiPutCall call(output_, api_, headers_, components, trailing, uri, postData_); |
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105 resource.Handle(call); |
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106 return true; |
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107 } |
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108 |
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109 default: |
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110 return false; |
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111 } |
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112 } |
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113 |
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114 return false; |
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115 } |
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116 }; |
209 | 117 } |
118 | |
119 | |
120 | |
121 static void AddMethod(std::string& target, | |
122 const std::string& method) | |
123 { | |
124 if (target.size() > 0) | |
125 target += "," + method; | |
126 else | |
127 target = method; | |
128 } | |
129 | |
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130 static std::string MethodsToString(const std::set<HttpMethod>& methods) |
209 | 131 { |
132 std::string s; | |
133 | |
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134 if (methods.find(HttpMethod_Get) != methods.end()) |
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135 { |
209 | 136 AddMethod(s, "GET"); |
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137 } |
209 | 138 |
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139 if (methods.find(HttpMethod_Post) != methods.end()) |
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140 { |
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141 AddMethod(s, "POST"); |
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142 } |
209 | 143 |
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144 if (methods.find(HttpMethod_Put) != methods.end()) |
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145 { |
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146 AddMethod(s, "PUT"); |
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147 } |
209 | 148 |
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149 if (methods.find(HttpMethod_Delete) != methods.end()) |
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150 { |
209 | 151 AddMethod(s, "DELETE"); |
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152 } |
209 | 153 |
154 return s; | |
155 } | |
156 | |
157 | |
158 | |
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159 bool RestApi::Handle(HttpOutput& output, |
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160 HttpMethod method, |
209 | 161 const UriComponents& uri, |
162 const Arguments& headers, | |
163 const Arguments& getArguments, | |
164 const std::string& postData) | |
165 { | |
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166 RestApiOutput wrappedOutput(output); |
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167 |
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168 #if ORTHANC_PUGIXML_ENABLED == 1 |
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169 // Look if the user wishes XML answers instead of JSON |
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170 // http://www.w3.org/Protocols/HTTP/HTRQ_Headers.html#z3 |
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171 Arguments::const_iterator it = headers.find("accept"); |
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172 if (it != headers.end()) |
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173 { |
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174 std::vector<std::string> accepted; |
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175 Toolbox::TokenizeString(accepted, it->second, ';'); |
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176 for (size_t i = 0; i < accepted.size(); i++) |
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177 { |
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178 if (accepted[i] == "application/xml") |
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179 { |
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180 wrappedOutput.SetConvertJsonToXml(true); |
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181 } |
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182 |
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183 if (accepted[i] == "application/json") |
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184 { |
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185 wrappedOutput.SetConvertJsonToXml(false); |
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186 } |
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187 } |
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188 } |
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189 #endif |
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190 |
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191 HttpHandlerVisitor visitor(*this, wrappedOutput, method, headers, getArguments, postData); |
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192 |
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193 if (root_.LookupResource(uri, visitor)) |
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194 { |
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195 wrappedOutput.Finalize(); |
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196 return true; |
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197 } |
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198 |
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199 std::set<HttpMethod> methods; |
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200 root_.GetAcceptedMethods(methods, uri); |
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201 |
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202 if (methods.empty()) |
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203 { |
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204 return false; // This URI is not served by this REST API |
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205 } |
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206 else |
209 | 207 { |
477 | 208 LOG(INFO) << "REST method " << EnumerationToString(method) |
416 | 209 << " not allowed on: " << Toolbox::FlattenUri(uri); |
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210 |
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211 output.SendMethodNotAllowed(MethodsToString(methods)); |
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212 |
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213 return true; |
209 | 214 } |
215 } | |
216 | |
217 void RestApi::Register(const std::string& path, | |
974 | 218 RestApiGetCall::Handler handler) |
209 | 219 { |
977 | 220 root_.Register(path, handler); |
209 | 221 } |
222 | |
223 void RestApi::Register(const std::string& path, | |
974 | 224 RestApiPutCall::Handler handler) |
209 | 225 { |
977 | 226 root_.Register(path, handler); |
209 | 227 } |
228 | |
229 void RestApi::Register(const std::string& path, | |
974 | 230 RestApiPostCall::Handler handler) |
209 | 231 { |
977 | 232 root_.Register(path, handler); |
209 | 233 } |
234 | |
235 void RestApi::Register(const std::string& path, | |
974 | 236 RestApiDeleteCall::Handler handler) |
209 | 237 { |
977 | 238 root_.Register(path, handler); |
209 | 239 } |
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240 |
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241 void RestApi::AutoListChildren(RestApiGetCall& call) |
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242 { |
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243 RestApi& context = call.GetContext(); |
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244 |
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245 Json::Value directory; |
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246 if (context.root_.GetDirectory(directory, call.GetFullUri())) |
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247 { |
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248 call.GetOutput().AnswerJson(directory); |
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249 } |
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250 } |
209 | 251 } |