Mercurial > hg > orthanc-stone
annotate Framework/Oracle/WebAssemblyOracle.cpp @ 992:a9f5d0742e22
implementation of HttpCommand in WebAssemblyOracle
| author | Sebastien Jodogne <s.jodogne@gmail.com> |
|---|---|
| date | Wed, 11 Sep 2019 12:31:49 +0200 |
| parents | 262a0244e9b2 |
| children | 9893fa8cd7a6 |
| rev | line source |
|---|---|
| 825 | 1 /** |
| 2 * Stone of Orthanc | |
| 3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics | |
| 4 * Department, University Hospital of Liege, Belgium | |
| 5 * Copyright (C) 2017-2019 Osimis S.A., Belgium | |
| 6 * | |
| 7 * This program is free software: you can redistribute it and/or | |
| 8 * modify it under the terms of the GNU Affero General Public License | |
| 9 * as published by the Free Software Foundation, either version 3 of | |
| 10 * the License, or (at your option) any later version. | |
| 11 * | |
| 12 * This program is distributed in the hope that it will be useful, but | |
| 13 * WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 15 * Affero General Public License for more details. | |
| 16 * | |
| 17 * You should have received a copy of the GNU Affero General Public License | |
| 18 * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
| 19 **/ | |
| 20 | |
| 21 | |
| 22 #include "WebAssemblyOracle.h" | |
| 23 | |
| 24 #include "SleepOracleCommand.h" | |
| 25 | |
| 26 #include <Core/OrthancException.h> | |
| 27 #include <Core/Toolbox.h> | |
| 28 | |
| 29 #include <emscripten.h> | |
| 30 #include <emscripten/html5.h> | |
| 31 #include <emscripten/fetch.h> | |
| 32 | |
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33 #if 0 |
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34 extern bool logbgo233; |
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35 extern bool logbgo115; |
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36 #endif |
| 825 | 37 |
| 38 namespace OrthancStone | |
| 39 { | |
| 40 class WebAssemblyOracle::TimeoutContext | |
| 41 { | |
| 42 private: | |
| 43 WebAssemblyOracle& oracle_; | |
| 44 const IObserver& receiver_; | |
| 45 std::auto_ptr<SleepOracleCommand> command_; | |
| 46 | |
| 47 public: | |
| 48 TimeoutContext(WebAssemblyOracle& oracle, | |
| 49 const IObserver& receiver, | |
| 50 IOracleCommand* command) : | |
| 51 oracle_(oracle), | |
| 52 receiver_(receiver) | |
| 53 { | |
| 54 if (command == NULL) | |
| 55 { | |
| 56 throw Orthanc::OrthancException(Orthanc::ErrorCode_NullPointer); | |
| 57 } | |
| 58 else | |
| 59 { | |
| 60 command_.reset(dynamic_cast<SleepOracleCommand*>(command)); | |
| 61 } | |
| 62 } | |
| 63 | |
| 64 void EmitMessage() | |
| 65 { | |
| 66 SleepOracleCommand::TimeoutMessage message(*command_); | |
| 67 oracle_.EmitMessage(receiver_, message); | |
| 68 } | |
| 69 | |
| 70 static void Callback(void *userData) | |
| 71 { | |
| 72 std::auto_ptr<TimeoutContext> context(reinterpret_cast<TimeoutContext*>(userData)); | |
| 73 context->EmitMessage(); | |
| 74 } | |
| 75 }; | |
| 76 | |
| 77 | |
| 78 class WebAssemblyOracle::Emitter : public IMessageEmitter | |
| 79 { | |
| 80 private: | |
| 81 WebAssemblyOracle& oracle_; | |
| 82 | |
| 83 public: | |
| 84 Emitter(WebAssemblyOracle& oracle) : | |
| 85 oracle_(oracle) | |
| 86 { | |
| 87 } | |
| 88 | |
| 89 virtual void EmitMessage(const IObserver& receiver, | |
| 90 const IMessage& message) | |
| 91 { | |
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92 LOG(TRACE) << "WebAssemblyOracle::Emitter::EmitMessage receiver = " |
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93 << std::hex << &receiver << std::dec; |
| 825 | 94 oracle_.EmitMessage(receiver, message); |
| 95 } | |
| 96 }; | |
| 97 | |
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98 /** |
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99 This object is created on the heap for every http request. |
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100 It is deleted in the success (or error) callbacks. |
| 825 | 101 |
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102 This object references the receiver of the request. Since this is a raw |
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103 reference, we need additional checks to make sure we send the response to |
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104 the same object, for the object can be deleted and a new one recreated at the |
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105 same address (it often happens in the [single-threaded] browser context). |
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106 */ |
| 825 | 107 class WebAssemblyOracle::FetchContext : public boost::noncopyable |
| 108 { | |
| 109 private: | |
| 110 Emitter emitter_; | |
| 111 const IObserver& receiver_; | |
| 112 std::auto_ptr<IOracleCommand> command_; | |
| 113 std::string expectedContentType_; | |
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114 std::string receiverFingerprint_; |
| 825 | 115 |
| 116 public: | |
| 117 FetchContext(WebAssemblyOracle& oracle, | |
| 118 const IObserver& receiver, | |
| 119 IOracleCommand* command, | |
| 120 const std::string& expectedContentType) : | |
| 121 emitter_(oracle), | |
| 122 receiver_(receiver), | |
| 123 command_(command), | |
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124 expectedContentType_(expectedContentType), |
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125 receiverFingerprint_(receiver.GetFingerprint()) |
| 825 | 126 { |
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127 LOG(TRACE) << "WebAssemblyOracle::FetchContext::FetchContext() | " |
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128 << "receiver address = " << std::hex << &receiver << std::dec |
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129 << " with fingerprint = " << receiverFingerprint_; |
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130 |
| 825 | 131 if (command == NULL) |
| 132 { | |
| 133 throw Orthanc::OrthancException(Orthanc::ErrorCode_NullPointer); | |
| 134 } | |
| 135 } | |
| 136 | |
| 137 const std::string& GetExpectedContentType() const | |
| 138 { | |
| 139 return expectedContentType_; | |
| 140 } | |
| 141 | |
| 142 void EmitMessage(const IMessage& message) | |
| 143 { | |
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144 LOG(TRACE) << "WebAssemblyOracle::FetchContext::EmitMessage receiver_ = " |
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145 << std::hex << &receiver_ << std::dec; |
| 825 | 146 emitter_.EmitMessage(receiver_, message); |
| 147 } | |
| 148 | |
| 149 IMessageEmitter& GetEmitter() | |
| 150 { | |
| 151 return emitter_; | |
| 152 } | |
| 153 | |
| 154 const IObserver& GetReceiver() const | |
| 155 { | |
| 156 return receiver_; | |
| 157 } | |
| 158 | |
| 159 IOracleCommand& GetCommand() const | |
| 160 { | |
| 161 return *command_; | |
| 162 } | |
| 163 | |
| 164 template <typename T> | |
| 165 const T& GetTypedCommand() const | |
| 166 { | |
| 167 return dynamic_cast<T&>(*command_); | |
| 168 } | |
| 169 | |
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170 #if 0 |
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171 static std::string ToString(Orthanc::HttpMethod method) |
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172 { |
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173 switch (method) { |
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174 case Orthanc::HttpMethod_Get: |
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175 return "GET"; |
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176 break; |
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177 case Orthanc::HttpMethod_Post: |
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178 return "POST"; |
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179 break; |
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180 default: |
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181 throw Orthanc::OrthancException(Orthanc::ErrorCode_NotImplemented); |
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182 break; |
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183 } |
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184 } |
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185 static void DumpCommand(emscripten_fetch_t* fetch, std::string answer) |
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186 { |
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187 FetchContext* context = reinterpret_cast<FetchContext*>(fetch->userData); |
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188 |
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189 const auto& command = context->GetTypedCommand<OrthancRestApiCommand>(); |
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190 auto commandStr = ToString(command.GetMethod()); |
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191 LOG(TRACE) << "SuccessCallback for REST command. Method is : " << commandStr; |
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192 switch (command.GetMethod()) { |
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193 case Orthanc::HttpMethod_Get: |
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194 LOG(TRACE) << " * SuccessCallback GET URI = " << command.GetUri() << " timeout = " << command.GetTimeout(); |
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195 LOG(TRACE) << " * SuccessCallback GET RESPONSE = " << answer; |
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196 break; |
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197 case Orthanc::HttpMethod_Post: |
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198 LOG(TRACE) << " * SuccessCallback POST URI = " << command.GetUri() << " body = " << command.GetBody() << " timeout = " << command.GetTimeout(); |
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199 LOG(TRACE) << " * SuccessCallback POST RESPONSE = " << answer; |
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200 break; |
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201 default: |
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202 throw Orthanc::OrthancException(Orthanc::ErrorCode_NotImplemented); |
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203 break; |
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204 } |
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205 } |
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206 #endif |
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207 |
| 825 | 208 static void SuccessCallback(emscripten_fetch_t *fetch) |
| 209 { | |
| 210 /** | |
| 211 * Firstly, make a local copy of the fetched information, and | |
| 212 * free data associated with the fetch. | |
| 213 **/ | |
| 214 | |
| 215 std::auto_ptr<FetchContext> context(reinterpret_cast<FetchContext*>(fetch->userData)); | |
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216 |
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217 // an UUID is 36 chars : 32 hex chars + 4 hyphens: char #0 --> char #35 |
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218 // char #36 is \0. |
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219 bool callHandler = true; |
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220 |
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221 // TODO: remove this line because we are NOT allowed to call methods on GetReceiver that is maybe a dangling ref |
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222 if (context->GetReceiver().DoesFingerprintLookGood()) |
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223 { |
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224 callHandler = true; |
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225 std::string currentFingerprint(context->GetReceiver().GetFingerprint()); |
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226 |
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227 LOG(TRACE) << "SuccessCallback for object at address (" << std::hex |
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228 << &(context->GetReceiver()) << std::dec |
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229 << " with current fingerprint = " << currentFingerprint |
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230 << ". Fingerprint looks OK"; |
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231 |
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232 if (currentFingerprint != context->receiverFingerprint_) |
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233 { |
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234 LOG(TRACE) << " ** SuccessCallback: BUT currentFingerprint != " |
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235 << "receiverFingerprint_(" << context->receiverFingerprint_ << ")"; |
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236 callHandler = false; |
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237 } |
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238 else |
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239 { |
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240 LOG(TRACE) << " ** SuccessCallback: FetchContext-level " |
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241 << "fingerprints are the same: " |
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242 << context->receiverFingerprint_ |
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243 << " ---> oracle will dispatch the response to observer: " |
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244 << std::hex << &(context->GetReceiver()) << std::dec; |
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245 } |
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246 } |
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247 else { |
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248 LOG(TRACE) << "SuccessCallback for object at address (" << std::hex << &(context->GetReceiver()) << std::dec << " with current fingerprint is XXXXX -- NOT A VALID FINGERPRINT! OBJECT IS READ ! CALLBACK WILL NOT BE CALLED!"; |
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249 callHandler = false; |
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250 } |
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251 |
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252 if (fetch->userData == NULL) |
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253 { |
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254 LOG(ERROR) << "WebAssemblyOracle::FetchContext::SuccessCallback fetch->userData is NULL!!!!!!!"; |
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255 } |
| 825 | 256 |
| 257 std::string answer; | |
| 258 if (fetch->numBytes > 0) | |
| 259 { | |
| 260 answer.assign(fetch->data, fetch->numBytes); | |
| 261 } | |
| 262 | |
| 263 /** | |
| 264 * TODO - HACK - As of emscripten-1.38.31, the fetch API does | |
| 265 * not contain a way to retrieve the HTTP headers of the | |
| 266 * answer. We make the assumption that the "Content-Type" header | |
| 267 * of the response is the same as the "Accept" header of the | |
| 268 * query. This should be fixed in future versions of emscripten. | |
| 269 * https://github.com/emscripten-core/emscripten/pull/8486 | |
| 270 **/ | |
| 271 | |
| 272 HttpHeaders headers; | |
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273 if (fetch->userData != NULL) |
| 825 | 274 { |
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275 if (!context->GetExpectedContentType().empty()) |
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276 { |
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277 headers["Content-Type"] = context->GetExpectedContentType(); |
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278 } |
| 825 | 279 } |
| 280 | |
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281 #if 0 |
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282 if (context->GetCommand().GetType() == IOracleCommand::Type_OrthancRestApi) { |
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283 //if (logbgo115) |
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284 DumpCommand(fetch, answer); |
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285 } |
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286 #endif |
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287 LOG(TRACE) << "About to call emscripten_fetch_close"; |
| 825 | 288 emscripten_fetch_close(fetch); |
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289 LOG(TRACE) << "Successfully called emscripten_fetch_close"; |
| 825 | 290 |
| 291 /** | |
| 292 * Secondly, use the retrieved data. | |
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293 * IMPORTANT NOTE: the receiver might be dead. This is prevented |
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294 * by the object responsible for zombie check, later on. |
| 825 | 295 **/ |
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296 try |
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297 { |
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298 if (context.get() == NULL) |
| 825 | 299 { |
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300 LOG(ERROR) << "WebAssemblyOracle::FetchContext::SuccessCallback: (context.get() == NULL)"; |
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301 throw Orthanc::OrthancException(Orthanc::ErrorCode_NullPointer); |
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302 } |
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303 else |
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304 { |
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305 if (callHandler) |
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306 { |
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307 switch (context->GetCommand().GetType()) |
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308 { |
|
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309 case IOracleCommand::Type_Http: |
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310 { |
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311 HttpCommand::SuccessMessage message(context->GetTypedCommand<HttpCommand>(), headers, answer); |
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312 context->EmitMessage(message); |
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313 break; |
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314 } |
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315 |
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316 case IOracleCommand::Type_OrthancRestApi: |
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317 { |
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318 LOG(TRACE) << "WebAssemblyOracle::FetchContext::SuccessCallback. About to call context->EmitMessage(message);"; |
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319 OrthancRestApiCommand::SuccessMessage message |
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320 (context->GetTypedCommand<OrthancRestApiCommand>(), headers, answer); |
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321 context->EmitMessage(message); |
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322 break; |
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323 } |
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324 |
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325 case IOracleCommand::Type_GetOrthancImage: |
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326 { |
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327 context->GetTypedCommand<GetOrthancImageCommand>().ProcessHttpAnswer |
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328 (context->GetEmitter(), context->GetReceiver(), answer, headers); |
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329 break; |
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330 } |
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331 |
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332 case IOracleCommand::Type_GetOrthancWebViewerJpeg: |
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333 { |
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334 context->GetTypedCommand<GetOrthancWebViewerJpegCommand>().ProcessHttpAnswer |
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335 (context->GetEmitter(), context->GetReceiver(), answer); |
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336 break; |
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337 } |
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338 |
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339 default: |
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340 LOG(ERROR) << "Command type not implemented by the WebAssembly Oracle: " |
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341 << context->GetCommand().GetType(); |
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342 } |
| 825 | 343 } |
| 344 } | |
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345 } |
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346 catch (Orthanc::OrthancException& e) |
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347 { |
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348 LOG(ERROR) << "Error while processing a fetch answer in the oracle: " << e.What(); |
| 825 | 349 } |
| 350 } | |
| 351 | |
| 352 static void FailureCallback(emscripten_fetch_t *fetch) | |
| 353 { | |
| 354 std::auto_ptr<FetchContext> context(reinterpret_cast<FetchContext*>(fetch->userData)); | |
| 355 | |
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356 const size_t kEmscriptenStatusTextSize = sizeof(emscripten_fetch_t::statusText); |
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357 char message[kEmscriptenStatusTextSize + 1]; |
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358 memcpy(message, fetch->statusText, kEmscriptenStatusTextSize); |
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359 message[kEmscriptenStatusTextSize] = 0; |
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360 |
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361 LOG(ERROR) << "Fetching " << fetch->url |
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362 << " failed, HTTP failure status code: " << fetch->status |
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363 << " | statusText = " << message |
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364 << " | numBytes = " << fetch->numBytes |
|
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365 << " | totalBytes = " << fetch->totalBytes |
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366 << " | readyState = " << fetch->readyState; |
| 825 | 367 |
| 368 /** | |
| 369 * TODO - The following code leads to an infinite recursion, at | |
| 370 * least with Firefox running on incognito mode => WHY? | |
| 371 **/ | |
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372 emscripten_fetch_close(fetch); // Also free data on failure. |
| 825 | 373 } |
| 374 }; | |
| 375 | |
| 376 | |
| 377 | |
| 378 class WebAssemblyOracle::FetchCommand : public boost::noncopyable | |
| 379 { | |
| 380 private: | |
| 381 WebAssemblyOracle& oracle_; | |
| 382 const IObserver& receiver_; | |
| 383 std::auto_ptr<IOracleCommand> command_; | |
| 384 Orthanc::HttpMethod method_; | |
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385 std::string url_; |
| 825 | 386 std::string body_; |
| 387 HttpHeaders headers_; | |
| 388 unsigned int timeout_; | |
| 389 std::string expectedContentType_; | |
| 390 | |
| 391 public: | |
| 392 FetchCommand(WebAssemblyOracle& oracle, | |
| 393 const IObserver& receiver, | |
| 394 IOracleCommand* command) : | |
| 395 oracle_(oracle), | |
| 396 receiver_(receiver), | |
| 397 command_(command), | |
| 398 method_(Orthanc::HttpMethod_Get), | |
| 399 timeout_(0) | |
| 400 { | |
| 401 if (command == NULL) | |
| 402 { | |
| 403 throw Orthanc::OrthancException(Orthanc::ErrorCode_NullPointer); | |
| 404 } | |
| 405 } | |
| 406 | |
| 407 void SetMethod(Orthanc::HttpMethod method) | |
| 408 { | |
| 409 method_ = method; | |
| 410 } | |
| 411 | |
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412 void SetOrthancUri(const std::string& uri) |
| 825 | 413 { |
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414 url_ = oracle_.orthancRoot_ + uri; |
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415 } |
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416 |
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417 void SetUrl(const std::string& url) |
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418 { |
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419 url_ = url; |
| 825 | 420 } |
| 421 | |
| 422 void SetBody(std::string& body /* will be swapped */) | |
| 423 { | |
| 424 body_.swap(body); | |
| 425 } | |
| 426 | |
| 427 void SetHttpHeaders(const HttpHeaders& headers) | |
| 428 { | |
| 429 headers_ = headers; | |
| 430 } | |
| 431 | |
| 432 void SetTimeout(unsigned int timeout) | |
| 433 { | |
| 434 timeout_ = timeout; | |
| 435 } | |
| 436 | |
| 437 void Execute() | |
| 438 { | |
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439 #if 0 |
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440 if (logbgo233) { |
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441 if (logbgo115) |
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442 LOG(TRACE) << " WebAssemblyOracle::Execute () command addr " << |
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443 std::hex << command_.get() << std::dec; |
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444 } |
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445 #endif |
| 825 | 446 if (command_.get() == NULL) |
| 447 { | |
| 448 // Cannot call Execute() twice | |
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449 LOG(ERROR) << "WebAssemblyOracle::Execute(): (command_.get() == NULL)"; |
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450 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); |
| 825 | 451 } |
| 452 | |
| 453 emscripten_fetch_attr_t attr; | |
| 454 emscripten_fetch_attr_init(&attr); | |
| 455 | |
| 456 const char* method; | |
| 457 | |
| 458 switch (method_) | |
| 459 { | |
| 460 case Orthanc::HttpMethod_Get: | |
| 461 method = "GET"; | |
| 462 break; | |
| 463 | |
| 464 case Orthanc::HttpMethod_Post: | |
| 465 method = "POST"; | |
| 466 break; | |
| 467 | |
| 468 case Orthanc::HttpMethod_Delete: | |
| 469 method = "DELETE"; | |
| 470 break; | |
| 471 | |
| 472 case Orthanc::HttpMethod_Put: | |
| 473 method = "PUT"; | |
| 474 break; | |
| 475 | |
| 476 default: | |
| 477 throw Orthanc::OrthancException(Orthanc::ErrorCode_NotImplemented); | |
| 478 } | |
| 479 | |
| 480 strcpy(attr.requestMethod, method); | |
| 481 | |
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482 attr.attributes = EMSCRIPTEN_FETCH_LOAD_TO_MEMORY | EMSCRIPTEN_FETCH_REPLACE; |
| 825 | 483 attr.onsuccess = FetchContext::SuccessCallback; |
| 484 attr.onerror = FetchContext::FailureCallback; | |
| 485 attr.timeoutMSecs = timeout_ * 1000; | |
| 486 | |
| 487 std::vector<const char*> headers; | |
| 488 headers.reserve(2 * headers_.size() + 1); | |
| 489 | |
| 490 std::string expectedContentType; | |
| 491 | |
| 492 for (HttpHeaders::const_iterator it = headers_.begin(); it != headers_.end(); ++it) | |
| 493 { | |
| 494 std::string key; | |
| 495 Orthanc::Toolbox::ToLowerCase(key, it->first); | |
| 496 | |
| 497 if (key == "accept") | |
| 498 { | |
| 499 expectedContentType = it->second; | |
| 500 } | |
| 501 | |
| 502 if (key != "accept-encoding") // Web browsers forbid the modification of this HTTP header | |
| 503 { | |
| 504 headers.push_back(it->first.c_str()); | |
| 505 headers.push_back(it->second.c_str()); | |
| 506 } | |
| 507 } | |
| 508 | |
| 509 headers.push_back(NULL); // Termination of the array of HTTP headers | |
| 510 | |
| 511 attr.requestHeaders = &headers[0]; | |
| 512 | |
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513 char* requestData = NULL; |
| 825 | 514 if (!body_.empty()) |
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515 requestData = reinterpret_cast<char*>(malloc(body_.size())); |
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516 |
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517 try |
| 825 | 518 { |
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519 if (!body_.empty()) |
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520 { |
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521 memcpy(requestData, &(body_[0]), body_.size()); |
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522 attr.requestDataSize = body_.size(); |
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523 attr.requestData = requestData; |
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524 } |
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525 attr.userData = new FetchContext(oracle_, receiver_, command_.release(), expectedContentType); |
| 825 | 526 |
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527 // Must be the last call to prevent memory leak on error |
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528 #if 0 |
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529 LOG(TRACE) << "Performing " << method << " request on URI: \"" << url_ << "\""; |
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530 #endif |
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531 emscripten_fetch(&attr, url_.c_str()); |
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532 } |
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533 catch(...) |
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534 { |
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535 if(requestData != NULL) |
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536 free(requestData); |
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537 throw; |
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538 } |
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539 } |
| 825 | 540 }; |
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541 |
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542 #if 0 |
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543 static void DumpCommand(OrthancRestApiCommand* pCommand) |
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544 { |
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545 OrthancRestApiCommand& command = *pCommand; |
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546 LOG(TRACE) << "WebAssemblyOracle::Execute for REST command."; |
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547 switch (command.GetMethod()) { |
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548 case Orthanc::HttpMethod_Get: |
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549 LOG(TRACE) << " * WebAssemblyOracle::Execute GET URI = " << command.GetUri() << " timeout = " << command.GetTimeout(); |
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550 break; |
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551 case Orthanc::HttpMethod_Post: |
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552 LOG(TRACE) << " * WebAssemblyOracle::Execute POST URI = " << command.GetUri() << " body = " << command.GetBody() << " timeout = " << command.GetTimeout(); |
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553 break; |
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554 default: |
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555 throw Orthanc::OrthancException(Orthanc::ErrorCode_NotImplemented); |
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556 break; |
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557 } |
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558 } |
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559 #endif |
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560 |
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561 |
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562 void WebAssemblyOracle::Execute(const IObserver& receiver, |
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563 HttpCommand* command) |
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564 { |
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565 FetchCommand fetch(*this, receiver, command); |
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566 |
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567 fetch.SetMethod(command->GetMethod()); |
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568 fetch.SetUrl(command->GetUrl()); |
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569 fetch.SetHttpHeaders(command->GetHttpHeaders()); |
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570 fetch.SetTimeout(command->GetTimeout()); |
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571 |
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572 if (command->GetMethod() == Orthanc::HttpMethod_Post || |
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573 command->GetMethod() == Orthanc::HttpMethod_Put) |
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574 { |
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575 std::string body; |
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576 command->SwapBody(body); |
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577 fetch.SetBody(body); |
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578 } |
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579 |
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580 fetch.Execute(); |
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581 } |
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582 |
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583 |
| 825 | 584 void WebAssemblyOracle::Execute(const IObserver& receiver, |
| 585 OrthancRestApiCommand* command) | |
| 586 { | |
|
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587 #if 0 |
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588 DumpCommand(command); |
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589 |
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590 if (logbgo233) { |
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591 if (logbgo115) |
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592 LOG(TRACE) << " WebAssemblyOracle::Execute (OrthancRestApiCommand) command addr " << |
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593 std::hex << command << std::dec; |
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594 } |
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595 #endif |
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596 |
|
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597 try |
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598 { |
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599 //LOG(TRACE) << "*********** WebAssemblyOracle::Execute."; |
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600 //LOG(TRACE) << "WebAssemblyOracle::Execute | command = " << command; |
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601 FetchCommand fetch(*this, receiver, command); |
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602 |
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603 fetch.SetMethod(command->GetMethod()); |
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604 fetch.SetOrthancUri(command->GetUri()); |
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605 fetch.SetHttpHeaders(command->GetHttpHeaders()); |
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606 fetch.SetTimeout(command->GetTimeout()); |
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607 |
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608 if (command->GetMethod() == Orthanc::HttpMethod_Post || |
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609 command->GetMethod() == Orthanc::HttpMethod_Put) |
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610 { |
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611 std::string body; |
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612 command->SwapBody(body); |
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613 fetch.SetBody(body); |
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614 } |
| 825 | 615 |
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616 fetch.Execute(); |
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617 //LOG(TRACE) << "*********** successful end of WebAssemblyOracle::Execute."; |
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618 } |
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619 catch (const Orthanc::OrthancException& e) |
| 825 | 620 { |
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621 if (e.HasDetails()) |
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622 { |
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623 LOG(ERROR) << "OrthancException in WebAssemblyOracle::Execute: " << e.What() << " Details: " << e.GetDetails(); |
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624 } |
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625 else |
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626 { |
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627 LOG(ERROR) << "OrthancException in WebAssemblyOracle::Execute: " << e.What(); |
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628 } |
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629 //LOG(TRACE) << "*********** failing end of WebAssemblyOracle::Execute."; |
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630 throw; |
| 825 | 631 } |
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632 catch (const std::exception& e) |
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633 { |
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634 LOG(ERROR) << "std::exception in WebAssemblyOracle::Execute: " << e.what(); |
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635 // LOG(TRACE) << "*********** failing end of WebAssemblyOracle::Execute."; |
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636 throw; |
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637 } |
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638 catch (...) |
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639 { |
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640 LOG(ERROR) << "Unknown exception in WebAssemblyOracle::Execute"; |
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641 // LOG(TRACE) << "*********** failing end of WebAssemblyOracle::Execute."; |
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642 throw; |
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643 } |
| 825 | 644 } |
| 645 | |
| 646 | |
| 647 void WebAssemblyOracle::Execute(const IObserver& receiver, | |
| 648 GetOrthancImageCommand* command) | |
| 649 { | |
|
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650 #if 0 |
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651 if (logbgo233) { |
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652 if (logbgo115) |
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653 LOG(TRACE) << " WebAssemblyOracle::Execute (GetOrthancImageCommand) command addr " << |
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654 std::hex << command << std::dec; |
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655 } |
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656 #endif |
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657 |
| 825 | 658 FetchCommand fetch(*this, receiver, command); |
| 659 | |
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660 fetch.SetOrthancUri(command->GetUri()); |
| 825 | 661 fetch.SetHttpHeaders(command->GetHttpHeaders()); |
| 662 fetch.SetTimeout(command->GetTimeout()); | |
| 663 | |
| 664 fetch.Execute(); | |
| 665 } | |
| 666 | |
| 667 | |
| 668 void WebAssemblyOracle::Execute(const IObserver& receiver, | |
| 669 GetOrthancWebViewerJpegCommand* command) | |
| 670 { | |
|
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671 #if 0 |
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672 if (logbgo233) { |
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673 if (logbgo115) |
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674 LOG(TRACE) << " WebAssemblyOracle::Execute (GetOrthancWebViewerJpegCommand) command addr " << std::hex << command << std::dec; |
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675 } |
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676 #endif |
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677 |
| 825 | 678 FetchCommand fetch(*this, receiver, command); |
| 679 | |
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680 fetch.SetOrthancUri(command->GetUri()); |
| 825 | 681 fetch.SetHttpHeaders(command->GetHttpHeaders()); |
| 682 fetch.SetTimeout(command->GetTimeout()); | |
| 683 | |
| 684 fetch.Execute(); | |
| 685 } | |
| 686 | |
| 687 | |
| 688 | |
| 689 void WebAssemblyOracle::Schedule(const IObserver& receiver, | |
| 690 IOracleCommand* command) | |
| 691 { | |
|
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692 LOG(TRACE) << "WebAssemblyOracle::Schedule : receiver = " |
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693 << std::hex << &receiver << std::dec |
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694 << " | Current fingerprint is " << receiver.GetFingerprint(); |
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695 |
| 825 | 696 std::auto_ptr<IOracleCommand> protection(command); |
| 697 | |
| 698 if (command == NULL) | |
| 699 { | |
| 700 throw Orthanc::OrthancException(Orthanc::ErrorCode_NullPointer); | |
| 701 } | |
| 702 | |
| 703 switch (command->GetType()) | |
| 704 { | |
|
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705 case IOracleCommand::Type_Http: |
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706 Execute(receiver, dynamic_cast<HttpCommand*>(protection.release())); |
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707 break; |
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708 |
| 825 | 709 case IOracleCommand::Type_OrthancRestApi: |
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710 //// DIAGNOSTIC. PLEASE REMOVE IF IT HAS BEEN COMMITTED BY MISTAKE |
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711 //{ |
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712 // const IObserver* pReceiver = &receiver; |
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713 // LOG(TRACE) << "WebAssemblyOracle::Schedule | pReceiver is " << pReceiver; |
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714 // LOG(TRACE) << "WebAssemblyOracle::Schedule | command = " << command; |
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715 // OrthancRestApiCommand* rac = dynamic_cast<OrthancRestApiCommand*>(protection.get()); |
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716 // LOG(TRACE) << "WebAssemblyOracle::Schedule | typed command = " << rac; |
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717 // LOG(TRACE) << "WebAssemblyOracle::Schedule" << rac->GetUri(); |
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718 //} |
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719 //// END OF BLOCK TO REMOVE |
| 825 | 720 Execute(receiver, dynamic_cast<OrthancRestApiCommand*>(protection.release())); |
| 721 break; | |
| 722 | |
| 723 case IOracleCommand::Type_GetOrthancImage: | |
|
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724 //// DIAGNOSTIC. PLEASE REMOVE IF IT HAS BEEN COMMITTED BY MISTAKE |
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725 //{ |
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726 // GetOrthancImageCommand* rac = dynamic_cast<GetOrthancImageCommand*>(protection.get()); |
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727 // LOG(TRACE) << "WebAssemblyOracle::Schedule" << rac->GetUri(); |
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728 //} |
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729 //// END OF BLOCK TO REMOVE |
| 825 | 730 Execute(receiver, dynamic_cast<GetOrthancImageCommand*>(protection.release())); |
| 731 break; | |
| 732 | |
| 733 case IOracleCommand::Type_GetOrthancWebViewerJpeg: | |
|
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734 //// DIAGNOSTIC. PLEASE REMOVE IF IT HAS BEEN COMMITTED BY MISTAKE |
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735 //{ |
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f75f6cb69c1b
Commented-out traces for debug
Benjamin Golinvaux <bgo@osimis.io>
parents:
843
diff
changeset
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736 // GetOrthancWebViewerJpegCommand* rac = dynamic_cast<GetOrthancWebViewerJpegCommand*>(protection.get()); |
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f75f6cb69c1b
Commented-out traces for debug
Benjamin Golinvaux <bgo@osimis.io>
parents:
843
diff
changeset
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737 // LOG(TRACE) << "WebAssemblyOracle::Schedule" << rac->GetUri(); |
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f75f6cb69c1b
Commented-out traces for debug
Benjamin Golinvaux <bgo@osimis.io>
parents:
843
diff
changeset
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738 //} |
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f75f6cb69c1b
Commented-out traces for debug
Benjamin Golinvaux <bgo@osimis.io>
parents:
843
diff
changeset
|
739 //// END OF BLOCK TO REMOVE |
| 825 | 740 Execute(receiver, dynamic_cast<GetOrthancWebViewerJpegCommand*>(protection.release())); |
| 741 break; | |
| 742 | |
| 743 case IOracleCommand::Type_Sleep: | |
| 744 { | |
| 745 unsigned int timeoutMS = dynamic_cast<SleepOracleCommand*>(command)->GetDelay(); | |
| 746 emscripten_set_timeout(TimeoutContext::Callback, timeoutMS, | |
| 747 new TimeoutContext(*this, receiver, protection.release())); | |
| 748 break; | |
| 749 } | |
| 750 | |
| 751 default: | |
| 752 LOG(ERROR) << "Command type not implemented by the WebAssembly Oracle: " << command->GetType(); | |
| 753 } | |
| 754 } | |
| 755 } |