Mercurial > hg > orthanc
annotate Core/RestApi/RestApi.cpp @ 2105:d1bb4bbe9775
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author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Mon, 17 Oct 2016 12:17:22 +0200 |
parents | b1291df2f780 |
children | dd609a99d39a |
rev | line source |
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209 | 1 /** |
2 * Orthanc - A Lightweight, RESTful DICOM Store | |
1900 | 3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics |
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4 * Department, University Hospital of Liege, Belgium |
209 | 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 | |
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36 #include "../Logging.h" |
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37 |
249 | 38 #include <stdlib.h> // To define "_exit()" under Windows |
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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 RequestOrigin origin_; |
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52 const char* remoteIp_; |
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53 const char* username_; |
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54 HttpMethod method_; |
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55 const IHttpHandler::Arguments& headers_; |
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56 const IHttpHandler::Arguments& getArguments_; |
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57 const char* bodyData_; |
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58 size_t bodySize_; |
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59 |
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60 public: |
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61 HttpHandlerVisitor(RestApi& api, |
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62 RestApiOutput& output, |
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63 RequestOrigin origin, |
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64 const char* remoteIp, |
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65 const char* username, |
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66 HttpMethod method, |
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67 const IHttpHandler::Arguments& headers, |
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68 const IHttpHandler::Arguments& getArguments, |
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69 const char* bodyData, |
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70 size_t bodySize) : |
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71 api_(api), |
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72 output_(output), |
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73 origin_(origin), |
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74 remoteIp_(remoteIp), |
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75 username_(username), |
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76 method_(method), |
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77 headers_(headers), |
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78 getArguments_(getArguments), |
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79 bodyData_(bodyData), |
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80 bodySize_(bodySize) |
209 | 81 { |
82 } | |
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83 |
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84 virtual bool Visit(const RestApiHierarchy::Resource& resource, |
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85 const UriComponents& uri, |
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86 const IHttpHandler::Arguments& components, |
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87 const UriComponents& trailing) |
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88 { |
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89 if (resource.HasHandler(method_)) |
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90 { |
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91 switch (method_) |
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92 { |
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93 case HttpMethod_Get: |
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94 { |
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95 RestApiGetCall call(output_, api_, origin_, remoteIp_, username_, |
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96 headers_, components, trailing, uri, getArguments_); |
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97 resource.Handle(call); |
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98 return true; |
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99 } |
209 | 100 |
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101 case HttpMethod_Post: |
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102 { |
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103 RestApiPostCall call(output_, api_, origin_, remoteIp_, username_, |
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104 headers_, components, trailing, uri, bodyData_, bodySize_); |
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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 case HttpMethod_Delete: |
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110 { |
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111 RestApiDeleteCall call(output_, api_, origin_, remoteIp_, username_, |
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112 headers_, components, trailing, uri); |
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113 resource.Handle(call); |
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114 return true; |
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115 } |
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116 |
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117 case HttpMethod_Put: |
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118 { |
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119 RestApiPutCall call(output_, api_, origin_, remoteIp_, username_, |
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120 headers_, components, trailing, uri, bodyData_, bodySize_); |
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121 resource.Handle(call); |
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122 return true; |
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123 } |
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124 |
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125 default: |
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126 return false; |
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127 } |
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128 } |
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129 |
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130 return false; |
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131 } |
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132 }; |
209 | 133 } |
134 | |
135 | |
136 | |
137 static void AddMethod(std::string& target, | |
138 const std::string& method) | |
139 { | |
140 if (target.size() > 0) | |
141 target += "," + method; | |
142 else | |
143 target = method; | |
144 } | |
145 | |
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146 static std::string MethodsToString(const std::set<HttpMethod>& methods) |
209 | 147 { |
148 std::string s; | |
149 | |
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150 if (methods.find(HttpMethod_Get) != methods.end()) |
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151 { |
209 | 152 AddMethod(s, "GET"); |
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153 } |
209 | 154 |
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155 if (methods.find(HttpMethod_Post) != methods.end()) |
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156 { |
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157 AddMethod(s, "POST"); |
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158 } |
209 | 159 |
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160 if (methods.find(HttpMethod_Put) != methods.end()) |
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161 { |
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162 AddMethod(s, "PUT"); |
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163 } |
209 | 164 |
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165 if (methods.find(HttpMethod_Delete) != methods.end()) |
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166 { |
209 | 167 AddMethod(s, "DELETE"); |
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168 } |
209 | 169 |
170 return s; | |
171 } | |
172 | |
173 | |
174 | |
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175 bool RestApi::Handle(HttpOutput& output, |
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176 RequestOrigin origin, |
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177 const char* remoteIp, |
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178 const char* username, |
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179 HttpMethod method, |
209 | 180 const UriComponents& uri, |
181 const Arguments& headers, | |
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182 const GetArguments& getArguments, |
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183 const char* bodyData, |
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184 size_t bodySize) |
209 | 185 { |
1368 | 186 RestApiOutput wrappedOutput(output, method); |
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187 |
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188 #if ORTHANC_PUGIXML_ENABLED == 1 |
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189 { |
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190 // Look if the client wishes XML answers instead of JSON |
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191 // http://www.w3.org/Protocols/HTTP/HTRQ_Headers.html#z3 |
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192 Arguments::const_iterator it = headers.find("accept"); |
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193 if (it != headers.end()) |
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194 { |
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195 std::vector<std::string> accepted; |
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196 Toolbox::TokenizeString(accepted, it->second, ';'); |
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197 for (size_t i = 0; i < accepted.size(); i++) |
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198 { |
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199 if (accepted[i] == "application/xml") |
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200 { |
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201 wrappedOutput.SetConvertJsonToXml(true); |
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202 } |
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203 |
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204 if (accepted[i] == "application/json") |
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205 { |
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206 wrappedOutput.SetConvertJsonToXml(false); |
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207 } |
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208 } |
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209 } |
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210 } |
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211 #endif |
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212 |
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213 Arguments compiled; |
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214 HttpToolbox::CompileGetArguments(compiled, getArguments); |
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215 |
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216 HttpHandlerVisitor visitor(*this, wrappedOutput, origin, remoteIp, username, |
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217 method, headers, compiled, bodyData, bodySize); |
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218 |
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219 if (root_.LookupResource(uri, visitor)) |
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220 { |
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221 wrappedOutput.Finalize(); |
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222 return true; |
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223 } |
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224 |
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225 std::set<HttpMethod> methods; |
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226 root_.GetAcceptedMethods(methods, uri); |
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227 |
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228 if (methods.empty()) |
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229 { |
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230 return false; // This URI is not served by this REST API |
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231 } |
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232 else |
209 | 233 { |
477 | 234 LOG(INFO) << "REST method " << EnumerationToString(method) |
416 | 235 << " not allowed on: " << Toolbox::FlattenUri(uri); |
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236 |
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237 output.SendMethodNotAllowed(MethodsToString(methods)); |
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238 |
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239 return true; |
209 | 240 } |
241 } | |
242 | |
243 void RestApi::Register(const std::string& path, | |
974 | 244 RestApiGetCall::Handler handler) |
209 | 245 { |
977 | 246 root_.Register(path, handler); |
209 | 247 } |
248 | |
249 void RestApi::Register(const std::string& path, | |
974 | 250 RestApiPutCall::Handler handler) |
209 | 251 { |
977 | 252 root_.Register(path, handler); |
209 | 253 } |
254 | |
255 void RestApi::Register(const std::string& path, | |
974 | 256 RestApiPostCall::Handler handler) |
209 | 257 { |
977 | 258 root_.Register(path, handler); |
209 | 259 } |
260 | |
261 void RestApi::Register(const std::string& path, | |
974 | 262 RestApiDeleteCall::Handler handler) |
209 | 263 { |
977 | 264 root_.Register(path, handler); |
209 | 265 } |
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266 |
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267 void RestApi::AutoListChildren(RestApiGetCall& call) |
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268 { |
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269 RestApi& context = call.GetContext(); |
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270 |
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271 Json::Value directory; |
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272 if (context.root_.GetDirectory(directory, call.GetFullUri())) |
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273 { |
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274 call.GetOutput().AnswerJson(directory); |
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275 } |
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276 } |
209 | 277 } |