Mercurial > hg > orthanc-stone
annotate OrthancStone/Sources/Oracle/WebAssemblyOracle.cpp @ 1512:244ad1e4e76a
reorganization of folders
| author | Sebastien Jodogne <s.jodogne@gmail.com> |
|---|---|
| date | Tue, 07 Jul 2020 16:21:02 +0200 |
| parents | Framework/Oracle/WebAssemblyOracle.cpp@121d01aa328e |
| children | 5bc305a166c2 |
| 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 | |
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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 | |
| 22 #include "WebAssemblyOracle.h" | |
| 23 | |
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24 #include "OracleCommandExceptionMessage.h" |
| 825 | 25 #include "SleepOracleCommand.h" |
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26 |
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27 #if ORTHANC_ENABLE_DCMTK == 1 |
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28 # include "ParseDicomSuccessMessage.h" |
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29 static unsigned int BUCKET_SOP = 1; |
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30 #endif |
| 825 | 31 |
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32 #include "GetOrthancImageCommand.h" |
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33 #include "GetOrthancWebViewerJpegCommand.h" |
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34 #include "HttpCommand.h" |
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35 #include "OrthancRestApiCommand.h" |
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36 #include "ParseDicomFromWadoCommand.h" |
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37 |
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38 #include <OrthancException.h> |
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39 #include <Toolbox.h> |
| 825 | 40 |
| 41 #include <emscripten.h> | |
| 42 #include <emscripten/html5.h> | |
| 43 #include <emscripten/fetch.h> | |
| 44 | |
| 45 namespace OrthancStone | |
| 46 { | |
| 47 class WebAssemblyOracle::TimeoutContext | |
| 48 { | |
| 49 private: | |
| 50 WebAssemblyOracle& oracle_; | |
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51 boost::weak_ptr<IObserver> receiver_; |
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52 std::unique_ptr<SleepOracleCommand> command_; |
| 825 | 53 |
| 54 public: | |
| 55 TimeoutContext(WebAssemblyOracle& oracle, | |
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56 boost::weak_ptr<IObserver> receiver, |
| 825 | 57 IOracleCommand* command) : |
| 58 oracle_(oracle), | |
| 59 receiver_(receiver) | |
| 60 { | |
| 61 if (command == NULL) | |
| 62 { | |
| 63 throw Orthanc::OrthancException(Orthanc::ErrorCode_NullPointer); | |
| 64 } | |
| 65 else | |
| 66 { | |
| 67 command_.reset(dynamic_cast<SleepOracleCommand*>(command)); | |
| 68 } | |
| 69 } | |
| 70 | |
| 71 void EmitMessage() | |
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72 { |
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73 assert(command_.get() != NULL); |
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74 |
| 825 | 75 SleepOracleCommand::TimeoutMessage message(*command_); |
| 76 oracle_.EmitMessage(receiver_, message); | |
| 77 } | |
| 78 | |
| 79 static void Callback(void *userData) | |
| 80 { | |
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81 std::unique_ptr<TimeoutContext> context(reinterpret_cast<TimeoutContext*>(userData)); |
| 825 | 82 context->EmitMessage(); |
| 83 } | |
| 84 }; | |
| 85 | |
| 86 | |
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87 /** |
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88 This object is created on the heap for every http request. |
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89 It is deleted in the success (or error) callbacks. |
| 825 | 90 |
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91 This object references the receiver of the request. Since this is a raw |
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92 reference, we need additional checks to make sure we send the response to |
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93 the same object, for the object can be deleted and a new one recreated at the |
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94 same address (it often happens in the [single-threaded] browser context). |
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95 */ |
| 825 | 96 class WebAssemblyOracle::FetchContext : public boost::noncopyable |
| 97 { | |
| 98 private: | |
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99 WebAssemblyOracle& oracle_; |
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100 boost::weak_ptr<IObserver> receiver_; |
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101 std::unique_ptr<IOracleCommand> command_; |
| 825 | 102 std::string expectedContentType_; |
| 103 | |
| 104 public: | |
| 105 FetchContext(WebAssemblyOracle& oracle, | |
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106 boost::weak_ptr<IObserver> receiver, |
| 825 | 107 IOracleCommand* command, |
| 108 const std::string& expectedContentType) : | |
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109 oracle_(oracle), |
| 825 | 110 receiver_(receiver), |
| 111 command_(command), | |
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112 expectedContentType_(expectedContentType) |
| 825 | 113 { |
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114 if (Orthanc::Logging::IsTraceLevelEnabled()) |
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115 { |
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116 // Calling "receiver.lock()" is expensive, hence the quick check if TRACE is enabled |
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117 LOG(TRACE) << "WebAssemblyOracle::FetchContext::FetchContext() | " |
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118 << "receiver address = " << std::hex << receiver.lock().get(); |
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119 } |
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120 |
| 825 | 121 if (command == NULL) |
| 122 { | |
| 123 throw Orthanc::OrthancException(Orthanc::ErrorCode_NullPointer); | |
| 124 } | |
| 125 } | |
| 126 | |
| 127 const std::string& GetExpectedContentType() const | |
| 128 { | |
| 129 return expectedContentType_; | |
| 130 } | |
| 131 | |
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132 IMessageEmitter& GetEmitter() const |
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133 { |
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134 return oracle_; |
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135 } |
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136 |
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137 boost::weak_ptr<IObserver> GetReceiver() const |
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138 { |
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139 return receiver_; |
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140 } |
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141 |
| 825 | 142 void EmitMessage(const IMessage& message) |
| 143 { | |
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144 if (Orthanc::Logging::IsTraceLevelEnabled()) |
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145 { |
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146 // Calling "receiver_.lock()" is expensive, hence the quick check if TRACE is enabled |
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147 LOG(TRACE) << "WebAssemblyOracle::FetchContext::EmitMessage receiver_ = " |
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148 << std::hex << receiver_.lock().get() << std::dec; |
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149 } |
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150 |
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151 oracle_.EmitMessage(receiver_, message); |
| 825 | 152 } |
| 153 | |
| 154 IOracleCommand& GetCommand() const | |
| 155 { | |
| 156 return *command_; | |
| 157 } | |
| 158 | |
| 159 template <typename T> | |
| 160 const T& GetTypedCommand() const | |
| 161 { | |
| 162 return dynamic_cast<T&>(*command_); | |
| 163 } | |
| 164 | |
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165 #if ORTHANC_ENABLE_DCMTK == 1 |
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166 void StoreInCache(const std::string& sopInstanceUid, |
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167 std::unique_ptr<Orthanc::ParsedDicomFile>& dicom, |
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168 size_t fileSize) |
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169 { |
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170 if (oracle_.dicomCache_.get()) |
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171 { |
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172 // Store it into the cache for future use |
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173 oracle_.dicomCache_->Acquire(BUCKET_SOP, sopInstanceUid, |
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174 dicom.release(), fileSize, true); |
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175 } |
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176 } |
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177 #endif |
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178 |
| 825 | 179 static void SuccessCallback(emscripten_fetch_t *fetch) |
| 180 { | |
| 181 /** | |
| 182 * Firstly, make a local copy of the fetched information, and | |
| 183 * free data associated with the fetch. | |
| 184 **/ | |
| 185 | |
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186 if (fetch->userData == NULL) |
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187 { |
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188 LOG(ERROR) << "WebAssemblyOracle::FetchContext::SuccessCallback fetch->userData is NULL!!!!!!!"; |
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189 return; |
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190 } |
| 825 | 191 |
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192 std::unique_ptr<FetchContext> context(reinterpret_cast<FetchContext*>(fetch->userData)); |
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193 |
| 825 | 194 std::string answer; |
| 195 if (fetch->numBytes > 0) | |
| 196 { | |
| 197 answer.assign(fetch->data, fetch->numBytes); | |
| 198 } | |
| 199 | |
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200 |
| 825 | 201 /** |
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202 * Retrieving the headers of the HTTP answer. |
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203 **/ |
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204 HttpHeaders headers; |
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205 |
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206 #if (__EMSCRIPTEN_major__ < 1 || \ |
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207 (__EMSCRIPTEN_major__ == 1 && __EMSCRIPTEN_minor__ < 38) || \ |
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208 (__EMSCRIPTEN_major__ == 1 && __EMSCRIPTEN_minor__ == 38 && __EMSCRIPTEN_tiny__ < 37)) |
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209 # warning Consider upgrading Emscripten to a version above 1.38.37, incomplete support of Fetch API |
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210 |
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211 /** |
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212 * HACK - If emscripten < 1.38.37, the fetch API does not |
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213 * contain a way to retrieve the HTTP headers of the answer. We |
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214 * make the assumption that the "Content-Type" header of the |
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215 * response is the same as the "Accept" header of the |
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216 * query. This is fixed thanks to the |
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217 * "emscripten_fetch_get_response_headers()" function that was |
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218 * added to "fetch.h" at emscripten-1.38.37 on 2019-06-26. |
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219 * |
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220 * https://github.com/emscripten-core/emscripten/blob/1.38.37/system/include/emscripten/fetch.h |
| 825 | 221 * https://github.com/emscripten-core/emscripten/pull/8486 |
| 222 **/ | |
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223 if (fetch->userData != NULL) |
| 825 | 224 { |
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225 if (!context->GetExpectedContentType().empty()) |
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226 { |
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227 headers["Content-Type"] = context->GetExpectedContentType(); |
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228 } |
| 825 | 229 } |
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230 #else |
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231 { |
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232 size_t size = emscripten_fetch_get_response_headers_length(fetch); |
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233 |
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234 std::string plainHeaders(size + 1, '\0'); |
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235 emscripten_fetch_get_response_headers(fetch, &plainHeaders[0], size + 1); |
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236 |
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237 std::vector<std::string> tokens; |
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238 Orthanc::Toolbox::TokenizeString(tokens, plainHeaders, '\n'); |
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239 |
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240 for (size_t i = 0; i < tokens.size(); i++) |
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241 { |
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242 size_t p = tokens[i].find(':'); |
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243 if (p != std::string::npos) |
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244 { |
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245 std::string key = Orthanc::Toolbox::StripSpaces(tokens[i].substr(0, p)); |
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246 std::string value = Orthanc::Toolbox::StripSpaces(tokens[i].substr(p + 1)); |
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247 headers[key] = value; |
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248 } |
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249 } |
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250 } |
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251 #endif |
| 825 | 252 |
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253 LOG(TRACE) << "About to call emscripten_fetch_close"; |
| 825 | 254 emscripten_fetch_close(fetch); |
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255 LOG(TRACE) << "Successfully called emscripten_fetch_close"; |
| 825 | 256 |
| 257 /** | |
| 258 * Secondly, use the retrieved data. | |
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259 * IMPORTANT NOTE: the receiver might be dead. This is prevented |
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260 * by the object responsible for zombie check, later on. |
| 825 | 261 **/ |
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262 try |
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263 { |
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264 if (context.get() == NULL) |
| 825 | 265 { |
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266 LOG(ERROR) << "WebAssemblyOracle::FetchContext::SuccessCallback: (context.get() == NULL)"; |
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267 throw Orthanc::OrthancException(Orthanc::ErrorCode_NullPointer); |
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268 } |
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269 else |
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270 { |
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271 switch (context->GetCommand().GetType()) |
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272 { |
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273 case IOracleCommand::Type_Http: |
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274 { |
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275 HttpCommand::SuccessMessage message(context->GetTypedCommand<HttpCommand>(), headers, answer); |
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276 context->EmitMessage(message); |
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277 break; |
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278 } |
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279 |
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280 case IOracleCommand::Type_OrthancRestApi: |
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281 { |
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282 LOG(TRACE) << "WebAssemblyOracle::FetchContext::SuccessCallback. About to call context->EmitMessage(message);"; |
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283 OrthancRestApiCommand::SuccessMessage message |
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284 (context->GetTypedCommand<OrthancRestApiCommand>(), headers, answer); |
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285 context->EmitMessage(message); |
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286 break; |
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287 } |
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288 |
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289 case IOracleCommand::Type_GetOrthancImage: |
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290 { |
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291 context->GetTypedCommand<GetOrthancImageCommand>().ProcessHttpAnswer |
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292 (context->GetReceiver(), context->GetEmitter(), answer, headers); |
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293 break; |
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294 } |
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295 |
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296 case IOracleCommand::Type_GetOrthancWebViewerJpeg: |
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297 { |
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298 context->GetTypedCommand<GetOrthancWebViewerJpegCommand>().ProcessHttpAnswer |
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299 (context->GetReceiver(), context->GetEmitter(), answer); |
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300 break; |
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301 } |
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302 |
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303 case IOracleCommand::Type_ParseDicomFromWado: |
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304 { |
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305 #if ORTHANC_ENABLE_DCMTK == 1 |
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306 const ParseDicomFromWadoCommand& command = |
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307 context->GetTypedCommand<ParseDicomFromWadoCommand>(); |
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308 |
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309 size_t fileSize; |
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310 std::unique_ptr<Orthanc::ParsedDicomFile> dicom |
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311 (ParseDicomSuccessMessage::ParseWadoAnswer(fileSize, answer, headers)); |
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312 |
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313 { |
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314 ParseDicomSuccessMessage message(command, command.GetSource(), *dicom, fileSize, true); |
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315 context->EmitMessage(message); |
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316 } |
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317 |
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318 context->StoreInCache(command.GetSopInstanceUid(), dicom, fileSize); |
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319 #else |
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320 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError); |
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321 #endif |
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322 break; |
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323 } |
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324 |
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325 default: |
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326 LOG(ERROR) << "Command type not implemented by the WebAssembly Oracle (in SuccessCallback): " |
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327 << context->GetCommand().GetType(); |
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328 throw Orthanc::OrthancException(Orthanc::ErrorCode_NotImplemented); |
| 825 | 329 } |
| 330 } | |
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331 } |
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332 catch (Orthanc::OrthancException& e) |
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333 { |
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334 LOG(INFO) << "Error while processing a fetch answer in the oracle: " << e.What(); |
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335 |
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336 { |
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337 OracleCommandExceptionMessage message(context->GetCommand(), e); |
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338 context->EmitMessage(message); |
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339 } |
| 825 | 340 } |
| 341 } | |
| 342 | |
| 343 static void FailureCallback(emscripten_fetch_t *fetch) | |
| 344 { | |
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345 std::unique_ptr<FetchContext> context(reinterpret_cast<FetchContext*>(fetch->userData)); |
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346 |
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347 { |
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348 const size_t kEmscriptenStatusTextSize = sizeof(emscripten_fetch_t::statusText); |
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349 char message[kEmscriptenStatusTextSize + 1]; |
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350 memcpy(message, fetch->statusText, kEmscriptenStatusTextSize); |
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351 message[kEmscriptenStatusTextSize] = 0; |
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352 |
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353 /*LOG(ERROR) << "Fetching " << fetch->url |
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354 << " failed, HTTP failure status code: " << fetch->status |
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355 << " | statusText = " << message |
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356 << " | numBytes = " << fetch->numBytes |
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357 << " | totalBytes = " << fetch->totalBytes |
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358 << " | readyState = " << fetch->readyState;*/ |
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359 } |
| 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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better error reporting in DicomStructureSetLoader + fixed POST request logic
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539 catch(...) |
|
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540 { |
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better error reporting in DicomStructureSetLoader + fixed POST request logic
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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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better error reporting in DicomStructureSetLoader + fixed POST request logic
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|
545 } |
| 825 | 546 }; |
|
964
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547 |
|
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Added cache-control headers for POST requests + #ifdef'd tracing logs + trace on context restored
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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
Benjamin Golinvaux <bgo@osimis.io>
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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 |
|
964
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Added cache-control headers for POST requests + #ifdef'd tracing logs + trace on context restored
Benjamin Golinvaux <bgo@osimis.io>
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changeset
|
568 |
|
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|
569 void WebAssemblyOracle::Execute(boost::weak_ptr<IObserver> receiver, |
|
992
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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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diff
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|
590 |
|
1229
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diff
changeset
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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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Commented-out traces for debug
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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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changeset
|
626 //LOG(TRACE) << "*********** failing end of WebAssemblyOracle::Execute."; |
|
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|
627 throw; |
| 825 | 628 } |
|
933
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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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diff
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|
634 } |
|
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|
635 catch (...) |
|
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|
636 { |
|
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diff
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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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diff
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|
640 } |
| 825 | 641 } |
| 642 | |
| 643 | |
|
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changeset
|
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 { | |
|
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748 LOG(TRACE) << "WebAssemblyOracle::Schedule : receiver = " |
|
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749 << std::hex << receiver.get(); |
|
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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: | |
| 773 break; | |
| 774 | |
| 775 case IOracleCommand::Type_Sleep: | |
| 776 { | |
| 777 unsigned int timeoutMS = dynamic_cast<SleepOracleCommand*>(command)->GetDelay(); | |
| 778 emscripten_set_timeout(TimeoutContext::Callback, timeoutMS, | |
| 779 new TimeoutContext(*this, receiver, protection.release())); | |
| 780 break; | |
| 781 } | |
| 782 | |
|
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783 case IOracleCommand::Type_ParseDicomFromWado: |
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784 #if ORTHANC_ENABLE_DCMTK == 1 |
|
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785 Execute(receiver, dynamic_cast<ParseDicomFromWadoCommand*>(protection.release())); |
|
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786 #else |
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787 throw Orthanc::OrthancException(Orthanc::ErrorCode_NotImplemented, |
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788 "DCMTK must be enabled to parse DICOM files"); |
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789 #endif |
|
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790 break; |
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|
791 |
| 825 | 792 default: |
|
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793 LOG(ERROR) << "Command type not implemented by the WebAssembly Oracle (in Schedule): " |
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794 << command->GetType(); |
|
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795 throw Orthanc::OrthancException(Orthanc::ErrorCode_NotImplemented); |
| 825 | 796 } |
|
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797 |
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798 return true; |
| 825 | 799 } |
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1245
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800 |
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801 |
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802 void WebAssemblyOracle::SetDicomCacheSize(size_t size) |
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803 { |
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804 #if ORTHANC_ENABLE_DCMTK == 1 |
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805 if (size == 0) |
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806 { |
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807 dicomCache_.reset(); |
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808 } |
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809 else |
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810 { |
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811 dicomCache_.reset(new ParsedDicomCache(size)); |
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812 } |
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813 #else |
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814 LOG(INFO) << "DCMTK support is disabled, the DICOM cache is disabled"; |
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815 #endif |
| 825 | 816 } |
| 817 } |