Mercurial > hg > orthanc-stone
annotate Framework/Oracle/WebAssemblyOracle.cpp @ 973:38409549db43 toa2019082903
Log with addresses + added fingerprint mechanism to avoid calling zombie objects
where:
- a message is sent with a receiver
- the receiver dies
- another receiver with the SAME address is created
- the message reply is executed --> execution on the wrong object!
(since their "identity" is their address. The fix is to identify them with
an UUID stored at creation time)
| author | Benjamin Golinvaux <bgo@osimis.io> |
|---|---|
| date | Thu, 29 Aug 2019 18:07:55 +0200 |
| parents | bc7b249dfbd0 |
| children | e75fd08d6c75 |
| 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 { | |
| 92 oracle_.EmitMessage(receiver, message); | |
| 93 } | |
| 94 }; | |
| 95 | |
| 96 | |
| 97 class WebAssemblyOracle::FetchContext : public boost::noncopyable | |
| 98 { | |
| 99 private: | |
| 100 Emitter emitter_; | |
| 101 const IObserver& receiver_; | |
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102 std::string receiverFingerprint_; |
| 825 | 103 std::auto_ptr<IOracleCommand> command_; |
| 104 std::string expectedContentType_; | |
| 105 | |
| 106 public: | |
| 107 FetchContext(WebAssemblyOracle& oracle, | |
| 108 const IObserver& receiver, | |
| 109 IOracleCommand* command, | |
| 110 const std::string& expectedContentType) : | |
| 111 emitter_(oracle), | |
| 112 receiver_(receiver), | |
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113 receiverFingerprint_(receiver.GetFingerprint()), |
| 825 | 114 command_(command), |
| 115 expectedContentType_(expectedContentType) | |
| 116 { | |
| 117 if (command == NULL) | |
| 118 { | |
| 119 throw Orthanc::OrthancException(Orthanc::ErrorCode_NullPointer); | |
| 120 } | |
| 121 } | |
| 122 | |
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123 bool IsFingerprintOK() const |
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124 { |
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125 bool ok = receiverFingerprint_ == receiver_.GetFingerprint(); |
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126 if (!ok) |
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127 { |
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128 LOG(TRACE) << "IsFingerprintOK returned false. receiverFingerprint_ = " << receiverFingerprint_ << " | receiver_(" << std::hex << (&receiver_) << std::dec << ").GetFingerprint() = " << receiver_.GetFingerprint(); |
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129 } |
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130 return ok; |
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131 } |
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132 |
| 825 | 133 const std::string& GetExpectedContentType() const |
| 134 { | |
| 135 return expectedContentType_; | |
| 136 } | |
| 137 | |
| 138 void EmitMessage(const IMessage& message) | |
| 139 { | |
| 140 emitter_.EmitMessage(receiver_, message); | |
| 141 } | |
| 142 | |
| 143 IMessageEmitter& GetEmitter() | |
| 144 { | |
| 145 return emitter_; | |
| 146 } | |
| 147 | |
| 148 const IObserver& GetReceiver() const | |
| 149 { | |
| 150 return receiver_; | |
| 151 } | |
| 152 | |
| 153 IOracleCommand& GetCommand() const | |
| 154 { | |
| 155 return *command_; | |
| 156 } | |
| 157 | |
| 158 template <typename T> | |
| 159 const T& GetTypedCommand() const | |
| 160 { | |
| 161 return dynamic_cast<T&>(*command_); | |
| 162 } | |
| 163 | |
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164 #if 0 |
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165 static std::string ToString(Orthanc::HttpMethod method) |
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166 { |
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167 switch (method) { |
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168 case Orthanc::HttpMethod_Get: |
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169 return "GET"; |
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170 break; |
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171 case Orthanc::HttpMethod_Post: |
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172 return "POST"; |
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173 break; |
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174 default: |
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175 throw Orthanc::OrthancException(Orthanc::ErrorCode_NotImplemented); |
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176 break; |
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177 } |
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178 } |
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179 static void DumpCommand(emscripten_fetch_t* fetch, std::string answer) |
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180 { |
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181 FetchContext* context = reinterpret_cast<FetchContext*>(fetch->userData); |
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182 |
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183 const auto& command = context->GetTypedCommand<OrthancRestApiCommand>(); |
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184 auto commandStr = ToString(command.GetMethod()); |
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185 LOG(TRACE) << "SuccessCallback for REST command. Method is : " << commandStr; |
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186 switch (command.GetMethod()) { |
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187 case Orthanc::HttpMethod_Get: |
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188 LOG(TRACE) << " * SuccessCallback GET URI = " << command.GetUri() << " timeout = " << command.GetTimeout(); |
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189 LOG(TRACE) << " * SuccessCallback GET RESPONSE = " << answer; |
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190 break; |
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191 case Orthanc::HttpMethod_Post: |
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192 LOG(TRACE) << " * SuccessCallback POST URI = " << command.GetUri() << " body = " << command.GetBody() << " timeout = " << command.GetTimeout(); |
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193 LOG(TRACE) << " * SuccessCallback POST RESPONSE = " << answer; |
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194 break; |
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195 default: |
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196 throw Orthanc::OrthancException(Orthanc::ErrorCode_NotImplemented); |
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197 break; |
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198 } |
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199 } |
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200 #endif |
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201 |
| 825 | 202 static void SuccessCallback(emscripten_fetch_t *fetch) |
| 203 { | |
| 204 /** | |
| 205 * Firstly, make a local copy of the fetched information, and | |
| 206 * free data associated with the fetch. | |
| 207 **/ | |
| 208 | |
| 209 std::auto_ptr<FetchContext> context(reinterpret_cast<FetchContext*>(fetch->userData)); | |
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210 |
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211 if (fetch->userData == NULL) |
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212 { |
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213 LOG(ERROR) << "WebAssemblyOracle::FetchContext::SuccessCallback fetch->userData is NULL!!!!!!!"; |
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214 } |
| 825 | 215 |
| 216 std::string answer; | |
| 217 if (fetch->numBytes > 0) | |
| 218 { | |
| 219 answer.assign(fetch->data, fetch->numBytes); | |
| 220 } | |
| 221 | |
| 222 /** | |
| 223 * TODO - HACK - As of emscripten-1.38.31, the fetch API does | |
| 224 * not contain a way to retrieve the HTTP headers of the | |
| 225 * answer. We make the assumption that the "Content-Type" header | |
| 226 * of the response is the same as the "Accept" header of the | |
| 227 * query. This should be fixed in future versions of emscripten. | |
| 228 * https://github.com/emscripten-core/emscripten/pull/8486 | |
| 229 **/ | |
| 230 | |
| 231 HttpHeaders headers; | |
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232 if (fetch->userData != NULL) |
| 825 | 233 { |
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234 if (!context->GetExpectedContentType().empty()) |
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235 { |
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236 headers["Content-Type"] = context->GetExpectedContentType(); |
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237 } |
| 825 | 238 } |
| 239 | |
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240 #if 0 |
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241 if (context->GetCommand().GetType() == IOracleCommand::Type_OrthancRestApi) { |
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242 //if (logbgo115) |
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243 DumpCommand(fetch, answer); |
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244 } |
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245 #endif |
| 825 | 246 emscripten_fetch_close(fetch); |
| 247 | |
| 248 /** | |
| 249 * Secondly, use the retrieved data. | |
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250 * We only use the receiver if its fingerprint matches the one stored |
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251 * at command creation. |
| 825 | 252 **/ |
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253 if (!context->IsFingerprintOK()) |
| 825 | 254 { |
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255 LOG(WARNING) << "FetchContext::SuccessCallback -- the initial request initiator has been destroyed. Response will be discarded."; |
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256 } |
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257 else |
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258 { |
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259 try |
| 825 | 260 { |
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261 if (context.get() == NULL) |
| 825 | 262 { |
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263 throw Orthanc::OrthancException(Orthanc::ErrorCode_NullPointer); |
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264 } |
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265 else |
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266 { |
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267 switch (context->GetCommand().GetType()) |
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268 { |
| 825 | 269 case IOracleCommand::Type_OrthancRestApi: |
| 270 { | |
| 271 OrthancRestApiCommand::SuccessMessage message | |
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272 (context->GetTypedCommand<OrthancRestApiCommand>(), headers, answer); |
| 825 | 273 context->EmitMessage(message); |
| 274 break; | |
| 275 } | |
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276 |
| 825 | 277 case IOracleCommand::Type_GetOrthancImage: |
| 278 { | |
| 279 context->GetTypedCommand<GetOrthancImageCommand>().ProcessHttpAnswer | |
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280 (context->GetEmitter(), context->GetReceiver(), answer, headers); |
| 825 | 281 break; |
| 282 } | |
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283 |
| 825 | 284 case IOracleCommand::Type_GetOrthancWebViewerJpeg: |
| 285 { | |
| 286 context->GetTypedCommand<GetOrthancWebViewerJpegCommand>().ProcessHttpAnswer | |
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287 (context->GetEmitter(), context->GetReceiver(), answer); |
| 825 | 288 break; |
| 289 } | |
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290 |
| 825 | 291 default: |
| 292 LOG(ERROR) << "Command type not implemented by the WebAssembly Oracle: " | |
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293 << context->GetCommand().GetType(); |
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294 } |
| 825 | 295 } |
| 296 } | |
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297 catch (Orthanc::OrthancException& e) |
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298 { |
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299 LOG(ERROR) << "Error while processing a fetch answer in the oracle: " << e.What(); |
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300 } |
| 825 | 301 } |
| 302 } | |
| 303 | |
| 304 static void FailureCallback(emscripten_fetch_t *fetch) | |
| 305 { | |
| 306 std::auto_ptr<FetchContext> context(reinterpret_cast<FetchContext*>(fetch->userData)); | |
| 307 | |
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308 const size_t kEmscriptenStatusTextSize = sizeof(emscripten_fetch_t::statusText); |
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309 char message[kEmscriptenStatusTextSize + 1]; |
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310 memcpy(message, fetch->statusText, kEmscriptenStatusTextSize); |
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311 message[kEmscriptenStatusTextSize] = 0; |
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312 |
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313 LOG(ERROR) << "Fetching " << fetch->url |
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314 << " failed, HTTP failure status code: " << fetch->status |
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315 << " | statusText = " << message |
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316 << " | numBytes = " << fetch->numBytes |
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317 << " | totalBytes = " << fetch->totalBytes |
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318 << " | readyState = " << fetch->readyState; |
| 825 | 319 |
| 320 /** | |
| 321 * TODO - The following code leads to an infinite recursion, at | |
| 322 * least with Firefox running on incognito mode => WHY? | |
| 323 **/ | |
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324 emscripten_fetch_close(fetch); // Also free data on failure. |
| 825 | 325 } |
| 326 }; | |
| 327 | |
| 328 | |
| 329 | |
| 330 class WebAssemblyOracle::FetchCommand : public boost::noncopyable | |
| 331 { | |
| 332 private: | |
| 333 WebAssemblyOracle& oracle_; | |
| 334 const IObserver& receiver_; | |
| 335 std::auto_ptr<IOracleCommand> command_; | |
| 336 Orthanc::HttpMethod method_; | |
| 337 std::string uri_; | |
| 338 std::string body_; | |
| 339 HttpHeaders headers_; | |
| 340 unsigned int timeout_; | |
| 341 std::string expectedContentType_; | |
| 342 | |
| 343 public: | |
| 344 FetchCommand(WebAssemblyOracle& oracle, | |
| 345 const IObserver& receiver, | |
| 346 IOracleCommand* command) : | |
| 347 oracle_(oracle), | |
| 348 receiver_(receiver), | |
| 349 command_(command), | |
| 350 method_(Orthanc::HttpMethod_Get), | |
| 351 timeout_(0) | |
| 352 { | |
| 353 if (command == NULL) | |
| 354 { | |
| 355 throw Orthanc::OrthancException(Orthanc::ErrorCode_NullPointer); | |
| 356 } | |
| 357 } | |
| 358 | |
| 359 void SetMethod(Orthanc::HttpMethod method) | |
| 360 { | |
| 361 method_ = method; | |
| 362 } | |
| 363 | |
| 364 void SetUri(const std::string& uri) | |
| 365 { | |
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366 uri_ = oracle_.orthancRoot_ + uri; |
| 825 | 367 } |
| 368 | |
| 369 void SetBody(std::string& body /* will be swapped */) | |
| 370 { | |
| 371 body_.swap(body); | |
| 372 } | |
| 373 | |
| 374 void SetHttpHeaders(const HttpHeaders& headers) | |
| 375 { | |
| 376 headers_ = headers; | |
| 377 } | |
| 378 | |
| 379 void SetTimeout(unsigned int timeout) | |
| 380 { | |
| 381 timeout_ = timeout; | |
| 382 } | |
| 383 | |
| 384 void Execute() | |
| 385 { | |
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386 #if 0 |
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387 if (logbgo233) { |
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388 if (logbgo115) |
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389 LOG(TRACE) << " WebAssemblyOracle::Execute () command addr " << |
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390 std::hex << command_.get() << std::dec; |
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391 } |
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392 #endif |
| 825 | 393 if (command_.get() == NULL) |
| 394 { | |
| 395 // Cannot call Execute() twice | |
|
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396 LOG(ERROR) << "WebAssemblyOracle::Execute(): (command_.get() == NULL)"; |
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397 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); |
| 825 | 398 } |
| 399 | |
| 400 emscripten_fetch_attr_t attr; | |
| 401 emscripten_fetch_attr_init(&attr); | |
| 402 | |
| 403 const char* method; | |
| 404 | |
| 405 switch (method_) | |
| 406 { | |
| 407 case Orthanc::HttpMethod_Get: | |
| 408 method = "GET"; | |
| 409 break; | |
| 410 | |
| 411 case Orthanc::HttpMethod_Post: | |
| 412 method = "POST"; | |
| 413 break; | |
| 414 | |
| 415 case Orthanc::HttpMethod_Delete: | |
| 416 method = "DELETE"; | |
| 417 break; | |
| 418 | |
| 419 case Orthanc::HttpMethod_Put: | |
| 420 method = "PUT"; | |
| 421 break; | |
| 422 | |
| 423 default: | |
| 424 throw Orthanc::OrthancException(Orthanc::ErrorCode_NotImplemented); | |
| 425 } | |
| 426 | |
| 427 strcpy(attr.requestMethod, method); | |
| 428 | |
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429 attr.attributes = EMSCRIPTEN_FETCH_LOAD_TO_MEMORY | EMSCRIPTEN_FETCH_REPLACE; |
| 825 | 430 attr.onsuccess = FetchContext::SuccessCallback; |
| 431 attr.onerror = FetchContext::FailureCallback; | |
| 432 attr.timeoutMSecs = timeout_ * 1000; | |
| 433 | |
| 434 std::vector<const char*> headers; | |
| 435 headers.reserve(2 * headers_.size() + 1); | |
| 436 | |
| 437 std::string expectedContentType; | |
| 438 | |
| 439 for (HttpHeaders::const_iterator it = headers_.begin(); it != headers_.end(); ++it) | |
| 440 { | |
| 441 std::string key; | |
| 442 Orthanc::Toolbox::ToLowerCase(key, it->first); | |
| 443 | |
| 444 if (key == "accept") | |
| 445 { | |
| 446 expectedContentType = it->second; | |
| 447 } | |
| 448 | |
| 449 if (key != "accept-encoding") // Web browsers forbid the modification of this HTTP header | |
| 450 { | |
| 451 headers.push_back(it->first.c_str()); | |
| 452 headers.push_back(it->second.c_str()); | |
| 453 } | |
| 454 } | |
| 455 | |
| 456 headers.push_back(NULL); // Termination of the array of HTTP headers | |
| 457 | |
| 458 attr.requestHeaders = &headers[0]; | |
| 459 | |
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460 char* requestData = NULL; |
| 825 | 461 if (!body_.empty()) |
|
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462 requestData = reinterpret_cast<char*>(malloc(body_.size())); |
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463 |
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464 try |
| 825 | 465 { |
|
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466 if (!body_.empty()) |
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467 { |
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468 memcpy(requestData, &(body_[0]), body_.size()); |
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469 attr.requestDataSize = body_.size(); |
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470 attr.requestData = requestData; |
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471 } |
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472 attr.userData = new FetchContext(oracle_, receiver_, command_.release(), expectedContentType); |
| 825 | 473 |
|
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474 // Must be the last call to prevent memory leak on error |
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475 #if 0 |
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476 LOG(TRACE) << "Performing " << method << " request on URI: \"" << uri_ << "\""; |
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477 #endif |
|
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478 emscripten_fetch(&attr, uri_.c_str()); |
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479 } |
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480 catch(...) |
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481 { |
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482 if(requestData != NULL) |
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483 free(requestData); |
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484 throw; |
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485 } |
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486 } |
| 825 | 487 }; |
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488 |
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489 #if 0 |
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490 static void DumpCommand(OrthancRestApiCommand* pCommand) |
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491 { |
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492 OrthancRestApiCommand& command = *pCommand; |
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493 LOG(TRACE) << "WebAssemblyOracle::Execute for REST command."; |
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494 switch (command.GetMethod()) { |
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495 case Orthanc::HttpMethod_Get: |
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496 LOG(TRACE) << " * WebAssemblyOracle::Execute GET URI = " << command.GetUri() << " timeout = " << command.GetTimeout(); |
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497 break; |
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498 case Orthanc::HttpMethod_Post: |
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499 LOG(TRACE) << " * WebAssemblyOracle::Execute POST URI = " << command.GetUri() << " body = " << command.GetBody() << " timeout = " << command.GetTimeout(); |
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500 break; |
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501 default: |
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502 throw Orthanc::OrthancException(Orthanc::ErrorCode_NotImplemented); |
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503 break; |
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504 } |
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505 } |
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506 #endif |
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507 |
| 825 | 508 void WebAssemblyOracle::Execute(const IObserver& receiver, |
| 509 OrthancRestApiCommand* command) | |
| 510 { | |
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511 #if 0 |
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512 DumpCommand(command); |
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513 |
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514 if (logbgo233) { |
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515 if (logbgo115) |
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516 LOG(TRACE) << " WebAssemblyOracle::Execute (OrthancRestApiCommand) command addr " << |
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517 std::hex << command << std::dec; |
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518 } |
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519 #endif |
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520 |
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521 try |
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522 { |
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523 //LOG(TRACE) << "*********** WebAssemblyOracle::Execute."; |
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524 //LOG(TRACE) << "WebAssemblyOracle::Execute | command = " << command; |
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525 FetchCommand fetch(*this, receiver, command); |
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526 |
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527 fetch.SetMethod(command->GetMethod()); |
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528 fetch.SetUri(command->GetUri()); |
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529 fetch.SetHttpHeaders(command->GetHttpHeaders()); |
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530 fetch.SetTimeout(command->GetTimeout()); |
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531 |
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532 if (command->GetMethod() == Orthanc::HttpMethod_Post || |
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533 command->GetMethod() == Orthanc::HttpMethod_Put) |
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534 { |
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535 std::string body; |
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536 command->SwapBody(body); |
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537 fetch.SetBody(body); |
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538 } |
| 825 | 539 |
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540 fetch.Execute(); |
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541 //LOG(TRACE) << "*********** successful end of WebAssemblyOracle::Execute."; |
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542 } |
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543 catch (const Orthanc::OrthancException& e) |
| 825 | 544 { |
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545 if (e.HasDetails()) |
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546 { |
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547 LOG(ERROR) << "OrthancException in WebAssemblyOracle::Execute: " << e.What() << " Details: " << e.GetDetails(); |
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548 } |
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549 else |
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550 { |
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551 LOG(ERROR) << "OrthancException in WebAssemblyOracle::Execute: " << e.What(); |
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552 } |
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553 //LOG(TRACE) << "*********** failing end of WebAssemblyOracle::Execute."; |
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554 throw; |
| 825 | 555 } |
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556 catch (const std::exception& e) |
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557 { |
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558 LOG(ERROR) << "std::exception in WebAssemblyOracle::Execute: " << e.what(); |
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559 // LOG(TRACE) << "*********** failing end of WebAssemblyOracle::Execute."; |
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560 throw; |
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561 } |
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562 catch (...) |
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563 { |
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564 LOG(ERROR) << "Unknown exception in WebAssemblyOracle::Execute"; |
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565 // LOG(TRACE) << "*********** failing end of WebAssemblyOracle::Execute."; |
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566 throw; |
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567 } |
| 825 | 568 } |
| 569 | |
| 570 | |
| 571 void WebAssemblyOracle::Execute(const IObserver& receiver, | |
| 572 GetOrthancImageCommand* command) | |
| 573 { | |
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574 #if 0 |
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575 if (logbgo233) { |
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576 if (logbgo115) |
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577 LOG(TRACE) << " WebAssemblyOracle::Execute (GetOrthancImageCommand) command addr " << |
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578 std::hex << command << std::dec; |
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579 } |
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580 #endif |
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581 |
| 825 | 582 FetchCommand fetch(*this, receiver, command); |
| 583 | |
| 584 fetch.SetUri(command->GetUri()); | |
| 585 fetch.SetHttpHeaders(command->GetHttpHeaders()); | |
| 586 fetch.SetTimeout(command->GetTimeout()); | |
| 587 | |
| 588 fetch.Execute(); | |
| 589 } | |
| 590 | |
| 591 | |
| 592 void WebAssemblyOracle::Execute(const IObserver& receiver, | |
| 593 GetOrthancWebViewerJpegCommand* command) | |
| 594 { | |
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595 #if 0 |
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596 if (logbgo233) { |
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597 if (logbgo115) |
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598 LOG(TRACE) << " WebAssemblyOracle::Execute (GetOrthancWebViewerJpegCommand) command addr " << std::hex << command << std::dec; |
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599 } |
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600 #endif |
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601 |
| 825 | 602 FetchCommand fetch(*this, receiver, command); |
| 603 | |
| 604 fetch.SetUri(command->GetUri()); | |
| 605 fetch.SetHttpHeaders(command->GetHttpHeaders()); | |
| 606 fetch.SetTimeout(command->GetTimeout()); | |
| 607 | |
| 608 fetch.Execute(); | |
| 609 } | |
| 610 | |
| 611 | |
| 612 | |
| 613 void WebAssemblyOracle::Schedule(const IObserver& receiver, | |
| 614 IOracleCommand* command) | |
| 615 { | |
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616 #if 0 |
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617 if (logbgo233) { |
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618 if (logbgo115) |
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619 LOG(TRACE) << " WebAssemblyOracle::Schedule command addr " << |
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620 std::hex << command << std::dec; |
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621 } |
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622 #endif |
| 825 | 623 std::auto_ptr<IOracleCommand> protection(command); |
| 624 | |
| 625 if (command == NULL) | |
| 626 { | |
| 627 throw Orthanc::OrthancException(Orthanc::ErrorCode_NullPointer); | |
| 628 } | |
| 629 | |
| 630 switch (command->GetType()) | |
| 631 { | |
| 632 case IOracleCommand::Type_OrthancRestApi: | |
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633 //// DIAGNOSTIC. PLEASE REMOVE IF IT HAS BEEN COMMITTED BY MISTAKE |
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634 //{ |
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635 // const IObserver* pReceiver = &receiver; |
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636 // LOG(TRACE) << "WebAssemblyOracle::Schedule | pReceiver is " << pReceiver; |
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637 // LOG(TRACE) << "WebAssemblyOracle::Schedule | command = " << command; |
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638 // OrthancRestApiCommand* rac = dynamic_cast<OrthancRestApiCommand*>(protection.get()); |
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639 // LOG(TRACE) << "WebAssemblyOracle::Schedule | typed command = " << rac; |
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640 // LOG(TRACE) << "WebAssemblyOracle::Schedule" << rac->GetUri(); |
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641 //} |
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642 //// END OF BLOCK TO REMOVE |
| 825 | 643 Execute(receiver, dynamic_cast<OrthancRestApiCommand*>(protection.release())); |
| 644 break; | |
| 645 | |
| 646 case IOracleCommand::Type_GetOrthancImage: | |
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647 //// DIAGNOSTIC. PLEASE REMOVE IF IT HAS BEEN COMMITTED BY MISTAKE |
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648 //{ |
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649 // GetOrthancImageCommand* rac = dynamic_cast<GetOrthancImageCommand*>(protection.get()); |
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650 // LOG(TRACE) << "WebAssemblyOracle::Schedule" << rac->GetUri(); |
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651 //} |
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652 //// END OF BLOCK TO REMOVE |
| 825 | 653 Execute(receiver, dynamic_cast<GetOrthancImageCommand*>(protection.release())); |
| 654 break; | |
| 655 | |
| 656 case IOracleCommand::Type_GetOrthancWebViewerJpeg: | |
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657 //// DIAGNOSTIC. PLEASE REMOVE IF IT HAS BEEN COMMITTED BY MISTAKE |
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658 //{ |
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659 // GetOrthancWebViewerJpegCommand* rac = dynamic_cast<GetOrthancWebViewerJpegCommand*>(protection.get()); |
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660 // LOG(TRACE) << "WebAssemblyOracle::Schedule" << rac->GetUri(); |
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661 //} |
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662 //// END OF BLOCK TO REMOVE |
| 825 | 663 Execute(receiver, dynamic_cast<GetOrthancWebViewerJpegCommand*>(protection.release())); |
| 664 break; | |
| 665 | |
| 666 case IOracleCommand::Type_Sleep: | |
| 667 { | |
| 668 unsigned int timeoutMS = dynamic_cast<SleepOracleCommand*>(command)->GetDelay(); | |
| 669 emscripten_set_timeout(TimeoutContext::Callback, timeoutMS, | |
| 670 new TimeoutContext(*this, receiver, protection.release())); | |
| 671 break; | |
| 672 } | |
| 673 | |
| 674 default: | |
| 675 LOG(ERROR) << "Command type not implemented by the WebAssembly Oracle: " << command->GetType(); | |
| 676 } | |
| 677 } | |
| 678 } |