Mercurial > hg > orthanc-stone
annotate OrthancStone/Sources/Oracle/WebAssemblyOracle.cpp @ 1572:1b3039384972
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| author | Sebastien Jodogne <s.jodogne@gmail.com> |
|---|---|
| date | Mon, 21 Sep 2020 18:13:52 +0200 |
| parents | a48ae10857b1 |
| children |
| rev | line source |
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| 825 | 1 /** |
| 2 * Stone of Orthanc | |
| 3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics | |
| 4 * Department, University Hospital of Liege, Belgium | |
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5 * Copyright (C) 2017-2020 Osimis S.A., Belgium |
| 825 | 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 | |
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22 #if defined(ORTHANC_BUILDING_STONE_LIBRARY) && ORTHANC_BUILDING_STONE_LIBRARY == 1 |
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23 # include "WebAssemblyOracle_Includes.h" |
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24 #else |
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25 // This is the case when using the WebAssembly side module, and this |
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26 // source file must be compiled within the WebAssembly main module |
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27 # include <Oracle/WebAssemblyOracle_Includes.h> |
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28 #endif |
| 825 | 29 |
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30 #include <OrthancException.h> |
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31 #include <Toolbox.h> |
| 825 | 32 |
| 33 #include <emscripten.h> | |
| 34 #include <emscripten/html5.h> | |
| 35 #include <emscripten/fetch.h> | |
| 36 | |
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37 |
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38 #if ORTHANC_ENABLE_DCMTK == 1 |
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39 static unsigned int BUCKET_SOP = 1; |
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40 #endif |
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41 |
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42 |
| 825 | 43 namespace OrthancStone |
| 44 { | |
| 45 class WebAssemblyOracle::TimeoutContext | |
| 46 { | |
| 47 private: | |
| 48 WebAssemblyOracle& oracle_; | |
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49 boost::weak_ptr<IObserver> receiver_; |
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50 std::unique_ptr<SleepOracleCommand> command_; |
| 825 | 51 |
| 52 public: | |
| 53 TimeoutContext(WebAssemblyOracle& oracle, | |
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54 boost::weak_ptr<IObserver> receiver, |
| 825 | 55 IOracleCommand* command) : |
| 56 oracle_(oracle), | |
| 57 receiver_(receiver) | |
| 58 { | |
| 59 if (command == NULL) | |
| 60 { | |
| 61 throw Orthanc::OrthancException(Orthanc::ErrorCode_NullPointer); | |
| 62 } | |
| 63 else | |
| 64 { | |
| 65 command_.reset(dynamic_cast<SleepOracleCommand*>(command)); | |
| 66 } | |
| 67 } | |
| 68 | |
| 69 void EmitMessage() | |
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70 { |
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71 assert(command_.get() != NULL); |
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72 |
| 825 | 73 SleepOracleCommand::TimeoutMessage message(*command_); |
| 74 oracle_.EmitMessage(receiver_, message); | |
| 75 } | |
| 76 | |
| 77 static void Callback(void *userData) | |
| 78 { | |
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79 std::unique_ptr<TimeoutContext> context(reinterpret_cast<TimeoutContext*>(userData)); |
| 825 | 80 context->EmitMessage(); |
| 81 } | |
| 82 }; | |
| 83 | |
| 84 | |
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85 /** |
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86 This object is created on the heap for every http request. |
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87 It is deleted in the success (or error) callbacks. |
| 825 | 88 |
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89 This object references the receiver of the request. Since this is a raw |
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90 reference, we need additional checks to make sure we send the response to |
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91 the same object, for the object can be deleted and a new one recreated at the |
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92 same address (it often happens in the [single-threaded] browser context). |
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93 */ |
| 825 | 94 class WebAssemblyOracle::FetchContext : public boost::noncopyable |
| 95 { | |
| 96 private: | |
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97 WebAssemblyOracle& oracle_; |
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98 boost::weak_ptr<IObserver> receiver_; |
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99 std::unique_ptr<IOracleCommand> command_; |
| 825 | 100 std::string expectedContentType_; |
| 101 | |
| 102 public: | |
| 103 FetchContext(WebAssemblyOracle& oracle, | |
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104 boost::weak_ptr<IObserver> receiver, |
| 825 | 105 IOracleCommand* command, |
| 106 const std::string& expectedContentType) : | |
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107 oracle_(oracle), |
| 825 | 108 receiver_(receiver), |
| 109 command_(command), | |
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110 expectedContentType_(expectedContentType) |
| 825 | 111 { |
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112 if (Orthanc::Logging::IsTraceLevelEnabled()) |
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113 { |
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114 // Calling "receiver.lock()" is expensive, hence the quick check if TRACE is enabled |
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115 LOG(TRACE) << "WebAssemblyOracle::FetchContext::FetchContext() | " |
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116 << "receiver address = " << std::hex << receiver.lock().get(); |
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117 } |
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118 |
| 825 | 119 if (command == NULL) |
| 120 { | |
| 121 throw Orthanc::OrthancException(Orthanc::ErrorCode_NullPointer); | |
| 122 } | |
| 123 } | |
| 124 | |
| 125 const std::string& GetExpectedContentType() const | |
| 126 { | |
| 127 return expectedContentType_; | |
| 128 } | |
| 129 | |
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130 IMessageEmitter& GetEmitter() const |
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131 { |
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132 return oracle_; |
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133 } |
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134 |
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135 boost::weak_ptr<IObserver> GetReceiver() const |
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136 { |
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137 return receiver_; |
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138 } |
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139 |
| 825 | 140 void EmitMessage(const IMessage& message) |
| 141 { | |
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142 if (Orthanc::Logging::IsTraceLevelEnabled()) |
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143 { |
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144 // Calling "receiver_.lock()" is expensive, hence the quick check if TRACE is enabled |
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145 LOG(TRACE) << "WebAssemblyOracle::FetchContext::EmitMessage receiver_ = " |
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146 << std::hex << receiver_.lock().get() << std::dec; |
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147 } |
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148 |
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149 oracle_.EmitMessage(receiver_, message); |
| 825 | 150 } |
| 151 | |
| 152 IOracleCommand& GetCommand() const | |
| 153 { | |
| 154 return *command_; | |
| 155 } | |
| 156 | |
| 157 template <typename T> | |
| 158 const T& GetTypedCommand() const | |
| 159 { | |
| 160 return dynamic_cast<T&>(*command_); | |
| 161 } | |
| 162 | |
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163 #if ORTHANC_ENABLE_DCMTK == 1 |
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164 void StoreInCache(const std::string& sopInstanceUid, |
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165 std::unique_ptr<Orthanc::ParsedDicomFile>& dicom, |
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166 size_t fileSize) |
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167 { |
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168 if (oracle_.dicomCache_.get()) |
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169 { |
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170 // Store it into the cache for future use |
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171 oracle_.dicomCache_->Acquire(BUCKET_SOP, sopInstanceUid, |
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172 dicom.release(), fileSize, true); |
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173 } |
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174 } |
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175 #endif |
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176 |
| 825 | 177 static void SuccessCallback(emscripten_fetch_t *fetch) |
| 178 { | |
| 179 /** | |
| 180 * Firstly, make a local copy of the fetched information, and | |
| 181 * free data associated with the fetch. | |
| 182 **/ | |
| 183 | |
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184 if (fetch->userData == NULL) |
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185 { |
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186 LOG(ERROR) << "WebAssemblyOracle::FetchContext::SuccessCallback fetch->userData is NULL!!!!!!!"; |
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187 return; |
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188 } |
| 825 | 189 |
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190 std::unique_ptr<FetchContext> context(reinterpret_cast<FetchContext*>(fetch->userData)); |
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191 |
| 825 | 192 std::string answer; |
| 193 if (fetch->numBytes > 0) | |
| 194 { | |
| 195 answer.assign(fetch->data, fetch->numBytes); | |
| 196 } | |
| 197 | |
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198 |
| 825 | 199 /** |
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200 * Retrieving the headers of the HTTP answer. |
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201 **/ |
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202 HttpHeaders headers; |
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203 |
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204 #if (__EMSCRIPTEN_major__ < 1 || \ |
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205 (__EMSCRIPTEN_major__ == 1 && __EMSCRIPTEN_minor__ < 38) || \ |
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206 (__EMSCRIPTEN_major__ == 1 && __EMSCRIPTEN_minor__ == 38 && __EMSCRIPTEN_tiny__ < 37)) |
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207 # warning Consider upgrading Emscripten to a version above 1.38.37, incomplete support of Fetch API |
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208 |
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209 /** |
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210 * HACK - If emscripten < 1.38.37, the fetch API does not |
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211 * contain a way to retrieve the HTTP headers of the answer. We |
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212 * make the assumption that the "Content-Type" header of the |
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213 * response is the same as the "Accept" header of the |
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214 * query. This is fixed thanks to the |
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215 * "emscripten_fetch_get_response_headers()" function that was |
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216 * added to "fetch.h" at emscripten-1.38.37 on 2019-06-26. |
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217 * |
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218 * https://github.com/emscripten-core/emscripten/blob/1.38.37/system/include/emscripten/fetch.h |
| 825 | 219 * https://github.com/emscripten-core/emscripten/pull/8486 |
| 220 **/ | |
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221 if (fetch->userData != NULL) |
| 825 | 222 { |
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223 if (!context->GetExpectedContentType().empty()) |
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224 { |
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225 headers["Content-Type"] = context->GetExpectedContentType(); |
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226 } |
| 825 | 227 } |
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228 #else |
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229 { |
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230 size_t size = emscripten_fetch_get_response_headers_length(fetch); |
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231 |
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232 std::string plainHeaders(size + 1, '\0'); |
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233 emscripten_fetch_get_response_headers(fetch, &plainHeaders[0], size + 1); |
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234 |
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235 std::vector<std::string> tokens; |
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236 Orthanc::Toolbox::TokenizeString(tokens, plainHeaders, '\n'); |
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237 |
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238 for (size_t i = 0; i < tokens.size(); i++) |
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239 { |
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240 size_t p = tokens[i].find(':'); |
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241 if (p != std::string::npos) |
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242 { |
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243 std::string key = Orthanc::Toolbox::StripSpaces(tokens[i].substr(0, p)); |
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244 std::string value = Orthanc::Toolbox::StripSpaces(tokens[i].substr(p + 1)); |
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245 headers[key] = value; |
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246 } |
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247 } |
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248 } |
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249 #endif |
| 825 | 250 |
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251 LOG(TRACE) << "About to call emscripten_fetch_close"; |
| 825 | 252 emscripten_fetch_close(fetch); |
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253 LOG(TRACE) << "Successfully called emscripten_fetch_close"; |
| 825 | 254 |
| 255 /** | |
| 256 * Secondly, use the retrieved data. | |
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257 * IMPORTANT NOTE: the receiver might be dead. This is prevented |
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258 * by the object responsible for zombie check, later on. |
| 825 | 259 **/ |
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260 try |
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261 { |
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262 if (context.get() == NULL) |
| 825 | 263 { |
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264 LOG(ERROR) << "WebAssemblyOracle::FetchContext::SuccessCallback: (context.get() == NULL)"; |
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265 throw Orthanc::OrthancException(Orthanc::ErrorCode_NullPointer); |
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266 } |
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267 else |
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268 { |
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269 switch (context->GetCommand().GetType()) |
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270 { |
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271 case IOracleCommand::Type_Http: |
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272 { |
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273 HttpCommand::SuccessMessage message(context->GetTypedCommand<HttpCommand>(), headers, answer); |
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274 context->EmitMessage(message); |
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275 break; |
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276 } |
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277 |
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278 case IOracleCommand::Type_OrthancRestApi: |
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279 { |
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280 LOG(TRACE) << "WebAssemblyOracle::FetchContext::SuccessCallback. About to call context->EmitMessage(message);"; |
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281 OrthancRestApiCommand::SuccessMessage message |
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282 (context->GetTypedCommand<OrthancRestApiCommand>(), headers, answer); |
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283 context->EmitMessage(message); |
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284 break; |
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285 } |
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286 |
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287 case IOracleCommand::Type_GetOrthancImage: |
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288 { |
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289 context->GetTypedCommand<GetOrthancImageCommand>().ProcessHttpAnswer |
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290 (context->GetReceiver(), context->GetEmitter(), answer, headers); |
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291 break; |
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292 } |
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293 |
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294 case IOracleCommand::Type_GetOrthancWebViewerJpeg: |
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295 { |
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296 context->GetTypedCommand<GetOrthancWebViewerJpegCommand>().ProcessHttpAnswer |
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297 (context->GetReceiver(), context->GetEmitter(), answer); |
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298 break; |
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299 } |
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300 |
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301 case IOracleCommand::Type_ParseDicomFromWado: |
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302 { |
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303 #if ORTHANC_ENABLE_DCMTK == 1 |
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304 const ParseDicomFromWadoCommand& command = |
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305 context->GetTypedCommand<ParseDicomFromWadoCommand>(); |
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306 |
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307 size_t fileSize; |
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308 std::unique_ptr<Orthanc::ParsedDicomFile> dicom |
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309 (ParseDicomSuccessMessage::ParseWadoAnswer(fileSize, answer, headers)); |
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310 |
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311 { |
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312 ParseDicomSuccessMessage message(command, command.GetSource(), *dicom, fileSize, true); |
|
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313 context->EmitMessage(message); |
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314 } |
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315 |
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316 context->StoreInCache(command.GetSopInstanceUid(), dicom, fileSize); |
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317 #else |
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318 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError); |
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319 #endif |
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320 break; |
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321 } |
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322 |
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323 default: |
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324 LOG(ERROR) << "Command type not implemented by the WebAssembly Oracle (in SuccessCallback): " |
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325 << context->GetCommand().GetType(); |
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326 throw Orthanc::OrthancException(Orthanc::ErrorCode_NotImplemented); |
| 825 | 327 } |
| 328 } | |
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329 } |
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330 catch (Orthanc::OrthancException& e) |
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331 { |
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332 LOG(INFO) << "Error while processing a fetch answer in the oracle: " << e.What(); |
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333 |
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334 { |
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335 OracleCommandExceptionMessage message(context->GetCommand(), e); |
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336 context->EmitMessage(message); |
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337 } |
| 825 | 338 } |
| 339 } | |
| 340 | |
| 341 static void FailureCallback(emscripten_fetch_t *fetch) | |
| 342 { | |
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343 std::unique_ptr<FetchContext> context(reinterpret_cast<FetchContext*>(fetch->userData)); |
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344 |
| 1572 | 345 #if 0 |
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346 { |
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347 const size_t kEmscriptenStatusTextSize = sizeof(emscripten_fetch_t::statusText); |
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348 char message[kEmscriptenStatusTextSize + 1]; |
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349 memcpy(message, fetch->statusText, kEmscriptenStatusTextSize); |
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350 message[kEmscriptenStatusTextSize] = 0; |
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351 |
| 1572 | 352 LOG(ERROR) << "Fetching " << fetch->url |
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353 << " failed, HTTP failure status code: " << fetch->status |
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354 << " | statusText = " << message |
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355 << " | numBytes = " << fetch->numBytes |
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356 << " | totalBytes = " << fetch->totalBytes |
| 1572 | 357 << " | readyState = " << fetch->readyState; |
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358 } |
| 1572 | 359 #endif |
| 825 | 360 |
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361 { |
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362 OracleCommandExceptionMessage message |
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363 (context->GetCommand(), Orthanc::OrthancException(Orthanc::ErrorCode_NetworkProtocol)); |
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364 context->EmitMessage(message); |
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365 } |
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366 |
| 825 | 367 /** |
| 368 * TODO - The following code leads to an infinite recursion, at | |
| 369 * least with Firefox running on incognito mode => WHY? | |
| 370 **/ | |
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371 emscripten_fetch_close(fetch); // Also free data on failure. |
| 825 | 372 } |
| 373 }; | |
| 374 | |
| 375 | |
| 376 | |
| 377 class WebAssemblyOracle::FetchCommand : public boost::noncopyable | |
| 378 { | |
| 379 private: | |
| 380 WebAssemblyOracle& oracle_; | |
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381 boost::weak_ptr<IObserver> receiver_; |
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382 std::unique_ptr<IOracleCommand> command_; |
| 825 | 383 Orthanc::HttpMethod method_; |
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384 std::string url_; |
| 825 | 385 std::string body_; |
| 386 HttpHeaders headers_; | |
| 387 unsigned int timeout_; | |
| 388 std::string expectedContentType_; | |
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389 bool hasCredentials_; |
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390 std::string username_; |
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391 std::string password_; |
| 825 | 392 |
| 393 public: | |
| 394 FetchCommand(WebAssemblyOracle& oracle, | |
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395 boost::weak_ptr<IObserver> receiver, |
| 825 | 396 IOracleCommand* command) : |
| 397 oracle_(oracle), | |
| 398 receiver_(receiver), | |
| 399 command_(command), | |
| 400 method_(Orthanc::HttpMethod_Get), | |
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401 timeout_(0), |
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402 hasCredentials_(false) |
| 825 | 403 { |
| 404 if (command == NULL) | |
| 405 { | |
| 406 throw Orthanc::OrthancException(Orthanc::ErrorCode_NullPointer); | |
| 407 } | |
| 408 } | |
| 409 | |
| 410 void SetMethod(Orthanc::HttpMethod method) | |
| 411 { | |
| 412 method_ = method; | |
| 413 } | |
| 414 | |
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415 void SetUrl(const std::string& url) |
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416 { |
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417 url_ = url; |
| 825 | 418 } |
| 419 | |
| 420 void SetBody(std::string& body /* will be swapped */) | |
| 421 { | |
| 422 body_.swap(body); | |
| 423 } | |
| 424 | |
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425 void AddHttpHeaders(const HttpHeaders& headers) |
| 825 | 426 { |
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427 for (HttpHeaders::const_iterator it = headers.begin(); it != headers.end(); ++it) |
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428 { |
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429 headers_[it->first] = it->second; |
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430 } |
| 825 | 431 } |
| 432 | |
| 433 void SetTimeout(unsigned int timeout) | |
| 434 { | |
| 435 timeout_ = timeout; | |
| 436 } | |
| 437 | |
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438 void SetCredentials(const std::string& username, |
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439 const std::string& password) |
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440 { |
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441 hasCredentials_ = true; |
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442 username_ = username; |
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443 password_ = password; |
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444 } |
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445 |
| 825 | 446 void Execute() |
| 447 { | |
| 448 if (command_.get() == NULL) | |
| 449 { | |
| 450 // Cannot call Execute() twice | |
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451 LOG(ERROR) << "WebAssemblyOracle::Execute(): (command_.get() == NULL)"; |
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452 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); |
| 825 | 453 } |
| 454 | |
| 455 emscripten_fetch_attr_t attr; | |
| 456 emscripten_fetch_attr_init(&attr); | |
| 457 | |
| 458 const char* method; | |
| 459 | |
| 460 switch (method_) | |
| 461 { | |
| 462 case Orthanc::HttpMethod_Get: | |
| 463 method = "GET"; | |
| 464 break; | |
| 465 | |
| 466 case Orthanc::HttpMethod_Post: | |
| 467 method = "POST"; | |
| 468 break; | |
| 469 | |
| 470 case Orthanc::HttpMethod_Delete: | |
| 471 method = "DELETE"; | |
| 472 break; | |
| 473 | |
| 474 case Orthanc::HttpMethod_Put: | |
| 475 method = "PUT"; | |
| 476 break; | |
| 477 | |
| 478 default: | |
| 479 throw Orthanc::OrthancException(Orthanc::ErrorCode_NotImplemented); | |
| 480 } | |
| 481 | |
| 482 strcpy(attr.requestMethod, method); | |
| 483 | |
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484 attr.attributes = EMSCRIPTEN_FETCH_LOAD_TO_MEMORY | EMSCRIPTEN_FETCH_REPLACE; |
| 825 | 485 attr.onsuccess = FetchContext::SuccessCallback; |
| 486 attr.onerror = FetchContext::FailureCallback; | |
| 487 attr.timeoutMSecs = timeout_ * 1000; | |
| 488 | |
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489 if (hasCredentials_) |
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490 { |
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491 attr.withCredentials = EM_TRUE; |
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492 attr.userName = username_.c_str(); |
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493 attr.password = password_.c_str(); |
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494 } |
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495 |
| 825 | 496 std::vector<const char*> headers; |
| 497 headers.reserve(2 * headers_.size() + 1); | |
| 498 | |
| 499 std::string expectedContentType; | |
| 500 | |
| 501 for (HttpHeaders::const_iterator it = headers_.begin(); it != headers_.end(); ++it) | |
| 502 { | |
| 503 std::string key; | |
| 504 Orthanc::Toolbox::ToLowerCase(key, it->first); | |
| 505 | |
| 506 if (key == "accept") | |
| 507 { | |
| 508 expectedContentType = it->second; | |
| 509 } | |
| 510 | |
| 511 if (key != "accept-encoding") // Web browsers forbid the modification of this HTTP header | |
| 512 { | |
| 513 headers.push_back(it->first.c_str()); | |
| 514 headers.push_back(it->second.c_str()); | |
| 515 } | |
| 516 } | |
| 517 | |
| 518 headers.push_back(NULL); // Termination of the array of HTTP headers | |
| 519 | |
| 520 attr.requestHeaders = &headers[0]; | |
| 521 | |
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522 char* requestData = NULL; |
| 825 | 523 if (!body_.empty()) |
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524 requestData = reinterpret_cast<char*>(malloc(body_.size())); |
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525 |
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526 try |
| 825 | 527 { |
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528 if (!body_.empty()) |
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529 { |
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530 memcpy(requestData, &(body_[0]), body_.size()); |
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531 attr.requestDataSize = body_.size(); |
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532 attr.requestData = requestData; |
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533 } |
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534 attr.userData = new FetchContext(oracle_, receiver_, command_.release(), expectedContentType); |
| 825 | 535 |
|
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536 // Must be the last call to prevent memory leak on error |
|
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537 emscripten_fetch(&attr, url_.c_str()); |
|
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538 } |
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539 catch(...) |
|
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540 { |
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541 if(requestData != NULL) |
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542 free(requestData); |
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better error reporting in DicomStructureSetLoader + fixed POST request logic
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543 throw; |
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544 } |
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545 } |
| 825 | 546 }; |
|
964
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547 |
|
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|
548 |
|
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549 void WebAssemblyOracle::SetOrthancUrl(FetchCommand& command, |
|
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550 const std::string& uri) const |
|
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551 { |
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552 if (isLocalOrthanc_) |
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553 { |
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554 command.SetUrl(localOrthancRoot_ + uri); |
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555 } |
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556 else |
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557 { |
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558 command.SetUrl(remoteOrthanc_.GetUrl() + uri); |
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559 command.AddHttpHeaders(remoteOrthanc_.GetHttpHeaders()); |
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560 |
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561 if (!remoteOrthanc_.GetUsername().empty()) |
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562 { |
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563 command.SetCredentials(remoteOrthanc_.GetUsername(), remoteOrthanc_.GetPassword()); |
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564 } |
|
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Added cache-control headers for POST requests + #ifdef'd tracing logs + trace on context restored
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565 } |
|
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Added cache-control headers for POST requests + #ifdef'd tracing logs + trace on context restored
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566 } |
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567 |
|
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568 |
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569 void WebAssemblyOracle::Execute(boost::weak_ptr<IObserver> receiver, |
|
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570 HttpCommand* command) |
|
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571 { |
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572 FetchCommand fetch(*this, receiver, command); |
|
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573 |
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574 fetch.SetMethod(command->GetMethod()); |
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575 fetch.SetUrl(command->GetUrl()); |
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576 fetch.AddHttpHeaders(command->GetHttpHeaders()); |
|
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577 fetch.SetTimeout(command->GetTimeout()); |
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578 |
|
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579 if (command->GetMethod() == Orthanc::HttpMethod_Post || |
|
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580 command->GetMethod() == Orthanc::HttpMethod_Put) |
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581 { |
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582 std::string body; |
|
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583 command->SwapBody(body); |
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584 fetch.SetBody(body); |
|
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585 } |
|
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586 |
|
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587 fetch.Execute(); |
|
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588 } |
|
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589 |
|
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|
590 |
|
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591 void WebAssemblyOracle::Execute(boost::weak_ptr<IObserver> receiver, |
| 825 | 592 OrthancRestApiCommand* command) |
| 593 { | |
|
933
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594 try |
|
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595 { |
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596 //LOG(TRACE) << "*********** WebAssemblyOracle::Execute."; |
|
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597 //LOG(TRACE) << "WebAssemblyOracle::Execute | command = " << command; |
|
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598 FetchCommand fetch(*this, receiver, command); |
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|
599 |
|
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600 fetch.SetMethod(command->GetMethod()); |
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601 SetOrthancUrl(fetch, command->GetUri()); |
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602 fetch.AddHttpHeaders(command->GetHttpHeaders()); |
|
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603 fetch.SetTimeout(command->GetTimeout()); |
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|
604 |
|
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605 if (command->GetMethod() == Orthanc::HttpMethod_Post || |
|
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606 command->GetMethod() == Orthanc::HttpMethod_Put) |
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607 { |
|
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|
608 std::string body; |
|
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609 command->SwapBody(body); |
|
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610 fetch.SetBody(body); |
|
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|
611 } |
| 825 | 612 |
|
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613 fetch.Execute(); |
|
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614 //LOG(TRACE) << "*********** successful end of WebAssemblyOracle::Execute."; |
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615 } |
|
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|
616 catch (const Orthanc::OrthancException& e) |
| 825 | 617 { |
|
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618 if (e.HasDetails()) |
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619 { |
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|
620 LOG(ERROR) << "OrthancException in WebAssemblyOracle::Execute: " << e.What() << " Details: " << e.GetDetails(); |
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621 } |
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622 else |
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|
623 { |
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|
624 LOG(ERROR) << "OrthancException in WebAssemblyOracle::Execute: " << e.What(); |
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625 } |
|
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|
626 //LOG(TRACE) << "*********** failing end of WebAssemblyOracle::Execute."; |
|
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|
627 throw; |
| 825 | 628 } |
|
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|
629 catch (const std::exception& e) |
|
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|
630 { |
|
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|
631 LOG(ERROR) << "std::exception in WebAssemblyOracle::Execute: " << e.what(); |
|
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|
632 // LOG(TRACE) << "*********** failing end of WebAssemblyOracle::Execute."; |
|
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|
633 throw; |
|
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|
634 } |
|
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|
635 catch (...) |
|
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|
636 { |
|
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|
637 LOG(ERROR) << "Unknown exception in WebAssemblyOracle::Execute"; |
|
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|
638 // LOG(TRACE) << "*********** failing end of WebAssemblyOracle::Execute."; |
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|
639 throw; |
|
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|
640 } |
| 825 | 641 } |
| 642 | |
| 643 | |
|
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|
644 void WebAssemblyOracle::Execute(boost::weak_ptr<IObserver> receiver, |
| 825 | 645 GetOrthancImageCommand* command) |
| 646 { | |
| 647 FetchCommand fetch(*this, receiver, command); | |
| 648 | |
|
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|
649 SetOrthancUrl(fetch, command->GetUri()); |
|
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|
650 fetch.AddHttpHeaders(command->GetHttpHeaders()); |
| 825 | 651 fetch.SetTimeout(command->GetTimeout()); |
| 652 | |
| 653 fetch.Execute(); | |
| 654 } | |
| 655 | |
| 656 | |
|
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changeset
|
657 void WebAssemblyOracle::Execute(boost::weak_ptr<IObserver> receiver, |
| 825 | 658 GetOrthancWebViewerJpegCommand* command) |
| 659 { | |
| 660 FetchCommand fetch(*this, receiver, command); | |
| 661 | |
|
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|
662 SetOrthancUrl(fetch, command->GetUri()); |
|
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|
663 fetch.AddHttpHeaders(command->GetHttpHeaders()); |
| 825 | 664 fetch.SetTimeout(command->GetTimeout()); |
| 665 | |
| 666 fetch.Execute(); | |
| 667 } | |
| 668 | |
| 669 | |
|
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670 void WebAssemblyOracle::Execute(boost::weak_ptr<IObserver> receiver, |
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671 ParseDicomFromWadoCommand* command) |
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672 { |
|
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673 std::unique_ptr<ParseDicomFromWadoCommand> protection(command); |
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674 |
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675 #if ORTHANC_ENABLE_DCMTK == 1 |
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676 if (dicomCache_.get()) |
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677 { |
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678 ParsedDicomCache::Reader reader(*dicomCache_, BUCKET_SOP, protection->GetSopInstanceUid()); |
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679 if (reader.IsValid() && |
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680 reader.HasPixelData()) |
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681 { |
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682 // Reuse the DICOM file from the cache |
|
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683 ParseDicomSuccessMessage message(*protection, protection->GetSource(), reader.GetDicom(), |
|
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684 reader.GetFileSize(), reader.HasPixelData()); |
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685 EmitMessage(receiver, message); |
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686 return; |
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687 } |
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688 } |
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689 #endif |
| 825 | 690 |
|
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691 switch (command->GetRestCommand().GetType()) |
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692 { |
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693 case IOracleCommand::Type_Http: |
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694 { |
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695 const HttpCommand& rest = |
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696 dynamic_cast<const HttpCommand&>(protection->GetRestCommand()); |
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697 |
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698 FetchCommand fetch(*this, receiver, protection.release()); |
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699 |
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700 fetch.SetMethod(rest.GetMethod()); |
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701 fetch.SetUrl(rest.GetUrl()); |
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702 fetch.AddHttpHeaders(rest.GetHttpHeaders()); |
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703 fetch.SetTimeout(rest.GetTimeout()); |
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704 |
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705 if (rest.GetMethod() == Orthanc::HttpMethod_Post || |
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706 rest.GetMethod() == Orthanc::HttpMethod_Put) |
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707 { |
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708 std::string body = rest.GetBody(); |
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709 fetch.SetBody(body); |
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710 } |
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711 |
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712 fetch.Execute(); |
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713 break; |
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714 } |
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715 |
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716 case IOracleCommand::Type_OrthancRestApi: |
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717 { |
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718 const OrthancRestApiCommand& rest = |
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719 dynamic_cast<const OrthancRestApiCommand&>(protection->GetRestCommand()); |
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720 |
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721 FetchCommand fetch(*this, receiver, protection.release()); |
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722 |
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723 fetch.SetMethod(rest.GetMethod()); |
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724 SetOrthancUrl(fetch, rest.GetUri()); |
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725 fetch.AddHttpHeaders(rest.GetHttpHeaders()); |
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726 fetch.SetTimeout(rest.GetTimeout()); |
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727 |
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728 if (rest.GetMethod() == Orthanc::HttpMethod_Post || |
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729 rest.GetMethod() == Orthanc::HttpMethod_Put) |
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730 { |
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731 std::string body = rest.GetBody(); |
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732 fetch.SetBody(body); |
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733 } |
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734 |
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735 fetch.Execute(); |
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736 break; |
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737 } |
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738 |
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739 default: |
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740 throw Orthanc::OrthancException(Orthanc::ErrorCode_NotImplemented); |
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741 } |
|
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742 } |
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|
743 |
| 825 | 744 |
|
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745 bool WebAssemblyOracle::Schedule(boost::shared_ptr<IObserver> receiver, |
| 825 | 746 IOracleCommand* command) |
| 747 { | |
|
977
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|
748 LOG(TRACE) << "WebAssemblyOracle::Schedule : receiver = " |
|
1468
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|
749 << std::hex << receiver.get(); |
|
977
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|
750 |
|
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751 std::unique_ptr<IOracleCommand> protection(command); |
| 825 | 752 |
| 753 if (command == NULL) | |
| 754 { | |
| 755 throw Orthanc::OrthancException(Orthanc::ErrorCode_NullPointer); | |
| 756 } | |
| 757 | |
| 758 switch (command->GetType()) | |
| 759 { | |
|
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760 case IOracleCommand::Type_Http: |
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761 Execute(receiver, dynamic_cast<HttpCommand*>(protection.release())); |
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762 break; |
|
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763 |
| 825 | 764 case IOracleCommand::Type_OrthancRestApi: |
| 765 Execute(receiver, dynamic_cast<OrthancRestApiCommand*>(protection.release())); | |
| 766 break; | |
| 767 | |
| 768 case IOracleCommand::Type_GetOrthancImage: | |
| 769 Execute(receiver, dynamic_cast<GetOrthancImageCommand*>(protection.release())); | |
| 770 break; | |
| 771 | |
| 772 case IOracleCommand::Type_GetOrthancWebViewerJpeg: | |
|
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773 Execute(receiver, dynamic_cast<GetOrthancWebViewerJpegCommand*>(protection.release())); |
| 825 | 774 break; |
| 775 | |
| 776 case IOracleCommand::Type_Sleep: | |
| 777 { | |
| 778 unsigned int timeoutMS = dynamic_cast<SleepOracleCommand*>(command)->GetDelay(); | |
| 779 emscripten_set_timeout(TimeoutContext::Callback, timeoutMS, | |
| 780 new TimeoutContext(*this, receiver, protection.release())); | |
| 781 break; | |
| 782 } | |
| 783 | |
|
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784 case IOracleCommand::Type_ParseDicomFromWado: |
|
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785 #if ORTHANC_ENABLE_DCMTK == 1 |
|
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786 Execute(receiver, dynamic_cast<ParseDicomFromWadoCommand*>(protection.release())); |
|
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787 #else |
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788 throw Orthanc::OrthancException(Orthanc::ErrorCode_NotImplemented, |
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789 "DCMTK must be enabled to parse DICOM files"); |
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790 #endif |
|
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791 break; |
|
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|
792 |
| 825 | 793 default: |
|
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794 LOG(ERROR) << "Command type not implemented by the WebAssembly Oracle (in Schedule): " |
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795 << command->GetType(); |
|
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796 throw Orthanc::OrthancException(Orthanc::ErrorCode_NotImplemented); |
| 825 | 797 } |
|
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798 |
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|
799 return true; |
| 825 | 800 } |
|
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801 |
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parents:
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802 |
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803 void WebAssemblyOracle::SetDicomCacheSize(size_t size) |
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804 { |
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805 #if ORTHANC_ENABLE_DCMTK == 1 |
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806 if (size == 0) |
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807 { |
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808 dicomCache_.reset(); |
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809 } |
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parents:
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810 else |
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parents:
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811 { |
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812 dicomCache_.reset(new ParsedDicomCache(size)); |
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813 } |
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814 #else |
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815 LOG(INFO) << "DCMTK support is disabled, the DICOM cache is disabled"; |
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816 #endif |
| 825 | 817 } |
| 818 } |