Mercurial > hg > orthanc
annotate Core/HttpServer/MongooseServer.cpp @ 901:7d88f3f4a3b3 plugins
refactoring IsServedUri, answer PNG images, regular expression groups
| author | Sebastien Jodogne <s.jodogne@gmail.com> |
|---|---|
| date | Wed, 18 Jun 2014 15:22:13 +0200 |
| parents | bb0a51561016 |
| children | e078ea944089 |
| rev | line source |
|---|---|
| 0 | 1 /** |
| 59 | 2 * Orthanc - A Lightweight, RESTful DICOM Store |
| 689 | 3 * Copyright (C) 2012-2014 Medical Physics Department, CHU of Liege, |
| 0 | 4 * Belgium |
| 5 * | |
| 6 * This program is free software: you can redistribute it and/or | |
| 7 * modify it under the terms of the GNU General Public License as | |
| 8 * published by the Free Software Foundation, either version 3 of the | |
| 9 * License, or (at your option) any later version. | |
| 136 | 10 * |
| 11 * In addition, as a special exception, the copyright holders of this | |
| 12 * program give permission to link the code of its release with the | |
| 13 * OpenSSL project's "OpenSSL" library (or with modified versions of it | |
| 14 * that use the same license as the "OpenSSL" library), and distribute | |
| 15 * the linked executables. You must obey the GNU General Public License | |
| 16 * in all respects for all of the code used other than "OpenSSL". If you | |
| 17 * modify file(s) with this exception, you may extend this exception to | |
| 18 * your version of the file(s), but you are not obligated to do so. If | |
| 19 * you do not wish to do so, delete this exception statement from your | |
| 20 * version. If you delete this exception statement from all source files | |
| 21 * in the program, then also delete it here. | |
| 0 | 22 * |
| 23 * This program is distributed in the hope that it will be useful, but | |
| 24 * WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 25 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 26 * General Public License for more details. | |
| 27 * | |
| 28 * You should have received a copy of the GNU General Public License | |
| 29 * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
| 30 **/ | |
| 31 | |
| 32 | |
| 33 // http://en.highscore.de/cpp/boost/stringhandling.html | |
| 34 | |
|
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35 #include "../PrecompiledHeaders.h" |
| 0 | 36 #include "MongooseServer.h" |
| 37 | |
| 38 #include <algorithm> | |
| 39 #include <string.h> | |
| 40 #include <boost/lexical_cast.hpp> | |
| 41 #include <boost/algorithm/string.hpp> | |
| 42 #include <iostream> | |
| 43 #include <string.h> | |
| 44 #include <stdio.h> | |
| 45 #include <boost/thread.hpp> | |
| 108 | 46 #include <glog/logging.h> |
| 0 | 47 |
| 59 | 48 #include "../OrthancException.h" |
| 0 | 49 #include "../ChunkedBuffer.h" |
| 324 | 50 #include "HttpOutput.h" |
| 0 | 51 #include "mongoose.h" |
| 52 | |
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53 #if ORTHANC_SSL_ENABLED == 1 |
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54 #include <openssl/opensslv.h> |
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55 #endif |
| 0 | 56 |
| 59 | 57 #define ORTHANC_REALM "Orthanc Secure Area" |
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58 |
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59 static const long LOCALHOST = (127ll << 24) + 1ll; |
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60 |
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61 |
| 59 | 62 namespace Orthanc |
| 0 | 63 { |
| 64 static const char multipart[] = "multipart/form-data; boundary="; | |
| 65 static unsigned int multipartLength = sizeof(multipart) / sizeof(char) - 1; | |
| 66 | |
| 67 | |
| 68 namespace | |
| 69 { | |
| 70 // Anonymous namespace to avoid clashes between compilation modules | |
| 71 class MongooseOutput : public HttpOutput | |
| 72 { | |
| 73 private: | |
| 74 struct mg_connection* connection_; | |
| 75 | |
| 76 public: | |
| 77 MongooseOutput(struct mg_connection* connection) : connection_(connection) | |
| 78 { | |
| 79 } | |
| 80 | |
| 81 virtual void Send(const void* buffer, size_t length) | |
| 82 { | |
| 217 | 83 if (length > 0) |
| 84 { | |
| 85 mg_write(connection_, buffer, length); | |
| 86 } | |
| 0 | 87 } |
| 88 }; | |
| 89 | |
| 90 | |
| 91 enum PostDataStatus | |
| 92 { | |
| 93 PostDataStatus_Success, | |
| 94 PostDataStatus_NoLength, | |
| 95 PostDataStatus_Pending, | |
| 96 PostDataStatus_Failure | |
| 97 }; | |
| 98 } | |
| 99 | |
| 100 | |
| 101 // TODO Move this to external file | |
| 102 | |
| 103 | |
| 104 class ChunkedFile : public ChunkedBuffer | |
| 105 { | |
| 106 private: | |
| 107 std::string filename_; | |
| 108 | |
| 109 public: | |
| 110 ChunkedFile(const std::string& filename) : | |
| 111 filename_(filename) | |
| 112 { | |
| 113 } | |
| 114 | |
| 115 const std::string& GetFilename() const | |
| 116 { | |
| 117 return filename_; | |
| 118 } | |
| 119 }; | |
| 120 | |
| 121 | |
| 122 | |
| 123 class ChunkStore | |
| 124 { | |
| 125 private: | |
| 126 typedef std::list<ChunkedFile*> Content; | |
| 127 Content content_; | |
| 128 unsigned int numPlaces_; | |
| 129 | |
| 130 boost::mutex mutex_; | |
| 131 std::set<std::string> discardedFiles_; | |
| 132 | |
| 133 void Clear() | |
| 134 { | |
| 135 for (Content::iterator it = content_.begin(); | |
| 656 | 136 it != content_.end(); ++it) |
| 0 | 137 { |
| 138 delete *it; | |
| 139 } | |
| 140 } | |
| 141 | |
| 142 Content::iterator Find(const std::string& filename) | |
| 143 { | |
| 144 for (Content::iterator it = content_.begin(); | |
| 656 | 145 it != content_.end(); ++it) |
| 0 | 146 { |
| 147 if ((*it)->GetFilename() == filename) | |
| 148 { | |
| 149 return it; | |
| 150 } | |
| 151 } | |
| 152 | |
| 153 return content_.end(); | |
| 154 } | |
| 155 | |
| 156 void Remove(const std::string& filename) | |
| 157 { | |
| 158 Content::iterator it = Find(filename); | |
| 159 if (it != content_.end()) | |
| 160 { | |
| 161 delete *it; | |
| 162 content_.erase(it); | |
| 163 } | |
| 164 } | |
| 165 | |
| 166 public: | |
| 167 ChunkStore() | |
| 168 { | |
| 169 numPlaces_ = 10; | |
| 170 } | |
| 171 | |
| 172 ~ChunkStore() | |
| 173 { | |
| 174 Clear(); | |
| 175 } | |
| 176 | |
| 177 PostDataStatus Store(std::string& completed, | |
| 178 const char* chunkData, | |
| 179 size_t chunkSize, | |
| 180 const std::string& filename, | |
| 181 size_t filesize) | |
| 182 { | |
| 183 boost::mutex::scoped_lock lock(mutex_); | |
| 184 | |
| 185 std::set<std::string>::iterator wasDiscarded = discardedFiles_.find(filename); | |
| 186 if (wasDiscarded != discardedFiles_.end()) | |
| 187 { | |
| 188 discardedFiles_.erase(wasDiscarded); | |
| 189 return PostDataStatus_Failure; | |
| 190 } | |
| 191 | |
| 192 ChunkedFile* f; | |
| 193 Content::iterator it = Find(filename); | |
| 194 if (it == content_.end()) | |
| 195 { | |
| 196 f = new ChunkedFile(filename); | |
| 197 | |
| 198 // Make some room | |
| 199 if (content_.size() >= numPlaces_) | |
| 200 { | |
| 201 discardedFiles_.insert(content_.front()->GetFilename()); | |
| 202 delete content_.front(); | |
| 203 content_.pop_front(); | |
| 204 } | |
| 205 | |
| 206 content_.push_back(f); | |
| 207 } | |
| 208 else | |
| 209 { | |
| 210 f = *it; | |
| 211 } | |
| 212 | |
| 213 f->AddChunk(chunkData, chunkSize); | |
| 214 | |
| 215 if (f->GetNumBytes() > filesize) | |
| 216 { | |
| 217 Remove(filename); | |
| 218 } | |
| 219 else if (f->GetNumBytes() == filesize) | |
| 220 { | |
| 221 f->Flatten(completed); | |
| 222 Remove(filename); | |
| 223 return PostDataStatus_Success; | |
| 224 } | |
| 225 | |
| 226 return PostDataStatus_Pending; | |
| 227 } | |
| 228 | |
| 229 /*void Print() | |
| 230 { | |
| 231 boost::mutex::scoped_lock lock(mutex_); | |
| 232 | |
| 233 printf("ChunkStore status:\n"); | |
| 234 for (Content::const_iterator i = content_.begin(); | |
| 235 i != content_.end(); i++) | |
| 236 { | |
| 237 printf(" [%s]: %d\n", (*i)->GetFilename().c_str(), (*i)->GetNumBytes()); | |
| 238 } | |
| 239 printf("-----\n"); | |
| 240 }*/ | |
| 241 }; | |
| 242 | |
| 243 | |
| 244 struct MongooseServer::PImpl | |
| 245 { | |
| 246 struct mg_context *context_; | |
| 247 ChunkStore chunkStore_; | |
| 248 }; | |
| 249 | |
| 250 | |
| 251 ChunkStore& MongooseServer::GetChunkStore() | |
| 252 { | |
| 253 return pimpl_->chunkStore_; | |
| 254 } | |
| 255 | |
| 256 | |
| 257 | |
| 416 | 258 static PostDataStatus ReadBody(std::string& postData, |
| 259 struct mg_connection *connection, | |
| 260 const HttpHandler::Arguments& headers) | |
| 0 | 261 { |
| 262 HttpHandler::Arguments::const_iterator cs = headers.find("content-length"); | |
| 263 if (cs == headers.end()) | |
| 264 { | |
| 265 return PostDataStatus_NoLength; | |
| 266 } | |
| 267 | |
| 268 int length; | |
| 269 try | |
| 270 { | |
| 271 length = boost::lexical_cast<int>(cs->second); | |
| 272 } | |
| 273 catch (boost::bad_lexical_cast) | |
| 274 { | |
| 275 return PostDataStatus_NoLength; | |
| 276 } | |
| 277 | |
| 278 if (length < 0) | |
| 279 { | |
| 280 length = 0; | |
| 281 } | |
| 282 | |
| 283 postData.resize(length); | |
| 284 | |
| 285 size_t pos = 0; | |
| 286 while (length > 0) | |
| 287 { | |
| 288 int r = mg_read(connection, &postData[pos], length); | |
| 289 if (r <= 0) | |
| 290 { | |
| 291 return PostDataStatus_Failure; | |
| 292 } | |
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293 |
| 8 | 294 assert(r <= length); |
| 0 | 295 length -= r; |
| 296 pos += r; | |
| 297 } | |
| 298 | |
| 299 return PostDataStatus_Success; | |
| 300 } | |
| 301 | |
| 302 | |
| 303 | |
| 304 static PostDataStatus ParseMultipartPost(std::string &completedFile, | |
| 305 struct mg_connection *connection, | |
| 306 const HttpHandler::Arguments& headers, | |
| 307 const std::string& contentType, | |
| 308 ChunkStore& chunkStore) | |
| 309 { | |
| 310 std::string boundary = "--" + contentType.substr(multipartLength); | |
| 311 | |
| 312 std::string postData; | |
| 416 | 313 PostDataStatus status = ReadBody(postData, connection, headers); |
| 0 | 314 |
| 315 if (status != PostDataStatus_Success) | |
| 316 { | |
| 317 return status; | |
| 318 } | |
| 319 | |
| 320 /*for (HttpHandler::Arguments::const_iterator i = headers.begin(); i != headers.end(); i++) | |
| 321 { | |
| 322 std::cout << "Header [" << i->first << "] = " << i->second << "\n"; | |
| 323 } | |
| 324 printf("CHUNK\n");*/ | |
| 325 | |
| 326 typedef HttpHandler::Arguments::const_iterator ArgumentIterator; | |
| 327 | |
| 328 ArgumentIterator requestedWith = headers.find("x-requested-with"); | |
| 329 ArgumentIterator fileName = headers.find("x-file-name"); | |
| 330 ArgumentIterator fileSizeStr = headers.find("x-file-size"); | |
| 331 | |
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332 if (requestedWith != headers.end() && |
| 0 | 333 requestedWith->second != "XMLHttpRequest") |
| 334 { | |
| 335 return PostDataStatus_Failure; | |
| 336 } | |
| 337 | |
| 338 size_t fileSize = 0; | |
| 339 if (fileSizeStr != headers.end()) | |
| 340 { | |
| 341 try | |
| 342 { | |
| 343 fileSize = boost::lexical_cast<size_t>(fileSizeStr->second); | |
| 344 } | |
| 345 catch (boost::bad_lexical_cast) | |
| 346 { | |
| 347 return PostDataStatus_Failure; | |
| 348 } | |
| 349 } | |
| 350 | |
| 351 typedef boost::find_iterator<std::string::iterator> FindIterator; | |
| 10 | 352 typedef boost::iterator_range<char*> Range; |
| 0 | 353 |
| 354 //chunkStore.Print(); | |
| 355 | |
| 356 try | |
| 357 { | |
| 358 FindIterator last; | |
| 359 for (FindIterator it = | |
| 360 make_find_iterator(postData, boost::first_finder(boundary)); | |
| 361 it!=FindIterator(); | |
| 362 ++it) | |
| 363 { | |
| 364 if (last != FindIterator()) | |
| 365 { | |
| 10 | 366 Range part(&last->back(), &it->front()); |
| 0 | 367 Range content = boost::find_first(part, "\r\n\r\n"); |
| 345 | 368 if (/*content != Range()*/!content.empty()) |
| 0 | 369 { |
| 370 Range c(&content.back() + 1, &it->front() - 2); | |
| 371 size_t chunkSize = c.size(); | |
| 372 | |
| 373 if (chunkSize > 0) | |
| 374 { | |
| 375 const char* chunkData = &c.front(); | |
| 376 | |
| 377 if (fileName == headers.end()) | |
| 378 { | |
| 379 // This file is stored in a single chunk | |
| 380 completedFile.resize(chunkSize); | |
| 381 if (chunkSize > 0) | |
| 382 { | |
| 383 memcpy(&completedFile[0], chunkData, chunkSize); | |
| 384 } | |
| 385 return PostDataStatus_Success; | |
| 386 } | |
| 387 else | |
| 388 { | |
| 389 return chunkStore.Store(completedFile, chunkData, chunkSize, fileName->second, fileSize); | |
| 390 } | |
| 391 } | |
| 10 | 392 } |
| 0 | 393 } |
| 394 | |
| 395 last = it; | |
| 396 } | |
| 397 } | |
| 398 catch (std::length_error) | |
| 399 { | |
| 400 return PostDataStatus_Failure; | |
| 401 } | |
| 402 | |
| 403 return PostDataStatus_Pending; | |
| 404 } | |
| 405 | |
| 406 | |
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407 static void SendUnauthorized(HttpOutput& output) |
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408 { |
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409 std::string s = "HTTP/1.1 401 Unauthorized\r\n" |
| 59 | 410 "WWW-Authenticate: Basic realm=\"" ORTHANC_REALM "\"" |
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411 "\r\n\r\n"; |
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412 output.Send(&s[0], s.size()); |
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413 } |
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414 |
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415 |
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416 static bool Authorize(const MongooseServer& that, |
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417 const HttpHandler::Arguments& headers, |
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418 HttpOutput& output) |
| 23 | 419 { |
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420 bool granted = false; |
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421 |
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422 HttpHandler::Arguments::const_iterator auth = headers.find("authorization"); |
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423 if (auth != headers.end()) |
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424 { |
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425 std::string s = auth->second; |
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426 if (s.substr(0, 6) == "Basic ") |
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427 { |
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428 std::string b64 = s.substr(6); |
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429 granted = that.IsValidBasicHttpAuthentication(b64); |
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430 } |
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431 } |
| 23 | 432 |
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433 if (!granted) |
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434 { |
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435 SendUnauthorized(output); |
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436 return false; |
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437 } |
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438 else |
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439 { |
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440 return true; |
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441 } |
| 23 | 442 } |
| 443 | |
| 444 | |
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445 static std::string GetAuthenticatedUsername(const HttpHandler::Arguments& headers) |
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446 { |
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447 HttpHandler::Arguments::const_iterator auth = headers.find("authorization"); |
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448 |
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449 if (auth == headers.end()) |
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450 { |
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451 return ""; |
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452 } |
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453 |
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454 std::string s = auth->second; |
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455 if (s.substr(0, 6) != "Basic ") |
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456 { |
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457 return ""; |
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458 } |
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459 |
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460 std::string b64 = s.substr(6); |
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461 std::string decoded; |
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462 Toolbox::DecodeBase64(decoded, b64); |
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463 size_t semicolons = decoded.find(':'); |
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464 |
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465 if (semicolons == std::string::npos) |
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466 { |
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467 // Bad-formatted request |
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468 return ""; |
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469 } |
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470 else |
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471 { |
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472 return decoded.substr(0, semicolons); |
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473 } |
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474 } |
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475 |
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476 |
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477 static bool ExtractMethod(HttpMethod& method, |
| 414 | 478 const struct mg_request_info *request, |
| 479 const HttpHandler::Arguments& headers, | |
| 480 const HttpHandler::Arguments& argumentsGET) | |
| 481 { | |
| 482 std::string overriden; | |
| 483 | |
| 484 // Check whether some PUT/DELETE faking is done | |
| 485 | |
| 486 // 1. Faking with Google's approach | |
| 487 HttpHandler::Arguments::const_iterator methodOverride = | |
| 488 headers.find("x-http-method-override"); | |
| 489 | |
| 490 if (methodOverride != headers.end()) | |
| 491 { | |
| 492 overriden = methodOverride->second; | |
| 493 } | |
| 494 else if (!strcmp(request->request_method, "GET")) | |
| 495 { | |
| 496 // 2. Faking with Ruby on Rail's approach | |
| 497 // GET /my/resource?_method=delete <=> DELETE /my/resource | |
| 498 methodOverride = argumentsGET.find("_method"); | |
| 499 if (methodOverride != argumentsGET.end()) | |
| 500 { | |
| 501 overriden = methodOverride->second; | |
| 502 } | |
| 503 } | |
| 504 | |
| 505 if (overriden.size() > 0) | |
| 506 { | |
| 507 // A faking has been done within this request | |
| 508 Toolbox::ToUpperCase(overriden); | |
| 509 | |
| 416 | 510 LOG(INFO) << "HTTP method faking has been detected for " << overriden; |
| 511 | |
| 414 | 512 if (overriden == "PUT") |
| 513 { | |
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514 method = HttpMethod_Put; |
| 416 | 515 return true; |
| 414 | 516 } |
| 517 else if (overriden == "DELETE") | |
| 518 { | |
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519 method = HttpMethod_Delete; |
| 416 | 520 return true; |
| 414 | 521 } |
| 522 else | |
| 523 { | |
| 524 return false; | |
| 525 } | |
| 526 } | |
| 527 | |
| 528 // No PUT/DELETE faking was present | |
| 529 if (!strcmp(request->request_method, "GET")) | |
| 530 { | |
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531 method = HttpMethod_Get; |
| 414 | 532 } |
| 533 else if (!strcmp(request->request_method, "POST")) | |
| 534 { | |
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535 method = HttpMethod_Post; |
| 414 | 536 } |
| 537 else if (!strcmp(request->request_method, "DELETE")) | |
| 538 { | |
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539 method = HttpMethod_Delete; |
| 414 | 540 } |
| 541 else if (!strcmp(request->request_method, "PUT")) | |
| 542 { | |
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543 method = HttpMethod_Put; |
| 414 | 544 } |
| 545 else | |
| 546 { | |
| 547 return false; | |
| 548 } | |
| 549 | |
| 550 return true; | |
| 551 } | |
| 552 | |
| 553 | |
| 0 | 554 |
| 555 static void* Callback(enum mg_event event, | |
| 556 struct mg_connection *connection, | |
| 557 const struct mg_request_info *request) | |
| 558 { | |
| 559 if (event == MG_NEW_REQUEST) | |
| 560 { | |
| 656 | 561 MongooseServer* that = reinterpret_cast<MongooseServer*>(request->user_data); |
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562 MongooseOutput output(connection); |
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563 |
| 414 | 564 // Check remote calls |
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565 if (!that->IsRemoteAccessAllowed() && |
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566 request->remote_ip != LOCALHOST) |
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567 { |
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568 SendUnauthorized(output); |
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569 return (void*) ""; |
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570 } |
| 0 | 571 |
| 572 | |
| 414 | 573 // Extract the HTTP headers |
| 574 HttpHandler::Arguments headers; | |
| 0 | 575 for (int i = 0; i < request->num_headers; i++) |
| 576 { | |
| 577 std::string name = request->http_headers[i].name; | |
| 578 std::transform(name.begin(), name.end(), name.begin(), ::tolower); | |
| 579 headers.insert(std::make_pair(name, request->http_headers[i].value)); | |
| 580 } | |
| 581 | |
| 414 | 582 |
| 583 // Extract the GET arguments | |
| 584 HttpHandler::Arguments argumentsGET; | |
| 585 if (!strcmp(request->request_method, "GET")) | |
| 586 { | |
| 587 HttpHandler::ParseGetQuery(argumentsGET, request->query_string); | |
| 588 } | |
| 589 | |
| 590 | |
| 591 // Compute the HTTP method, taking method faking into consideration | |
|
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592 HttpMethod method; |
| 414 | 593 if (!ExtractMethod(method, request, headers, argumentsGET)) |
| 594 { | |
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595 output.SendHeader(HttpStatus_400_BadRequest); |
| 414 | 596 return (void*) ""; |
| 597 } | |
| 598 | |
| 599 | |
| 23 | 600 // Authenticate this connection |
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601 if (that->IsAuthenticationEnabled() && |
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602 !Authorize(*that, headers, output)) |
| 23 | 603 { |
| 604 return (void*) ""; | |
| 605 } | |
| 606 | |
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607 |
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608 // Apply the filter, if it is installed |
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609 const IIncomingHttpRequestFilter *filter = that->GetIncomingHttpRequestFilter(); |
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610 if (filter != NULL) |
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611 { |
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612 std::string username = GetAuthenticatedUsername(headers); |
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613 |
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614 char remoteIp[24]; |
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615 sprintf(remoteIp, "%d.%d.%d.%d", |
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616 reinterpret_cast<const uint8_t*>(&request->remote_ip) [3], |
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617 reinterpret_cast<const uint8_t*>(&request->remote_ip) [2], |
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618 reinterpret_cast<const uint8_t*>(&request->remote_ip) [1], |
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619 reinterpret_cast<const uint8_t*>(&request->remote_ip) [0]); |
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620 |
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621 if (!filter->IsAllowed(method, request->uri, remoteIp, username.c_str())) |
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622 { |
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623 SendUnauthorized(output); |
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624 return (void*) ""; |
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625 } |
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626 } |
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627 |
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628 |
| 414 | 629 // Extract the body of the request for PUT and POST |
| 630 std::string body; | |
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631 if (method == HttpMethod_Post || |
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632 method == HttpMethod_Put) |
| 0 | 633 { |
| 416 | 634 PostDataStatus status; |
| 635 | |
| 0 | 636 HttpHandler::Arguments::const_iterator ct = headers.find("content-type"); |
| 637 if (ct == headers.end()) | |
| 638 { | |
| 416 | 639 // No content-type specified. Assume no multi-part content occurs at this point. |
| 640 status = ReadBody(body, connection, headers); | |
| 0 | 641 } |
| 642 else | |
| 643 { | |
| 416 | 644 std::string contentType = ct->second; |
| 645 if (contentType.size() >= multipartLength && | |
| 646 !memcmp(contentType.c_str(), multipart, multipartLength)) | |
| 647 { | |
| 648 status = ParseMultipartPost(body, connection, headers, contentType, that->GetChunkStore()); | |
| 649 } | |
| 650 else | |
| 651 { | |
| 652 status = ReadBody(body, connection, headers); | |
| 653 } | |
| 0 | 654 } |
| 655 | |
| 656 switch (status) | |
| 657 { | |
| 416 | 658 case PostDataStatus_NoLength: |
|
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659 output.SendHeader(HttpStatus_411_LengthRequired); |
| 416 | 660 return (void*) ""; |
| 0 | 661 |
| 416 | 662 case PostDataStatus_Failure: |
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663 output.SendHeader(HttpStatus_400_BadRequest); |
| 416 | 664 return (void*) ""; |
| 0 | 665 |
| 416 | 666 case PostDataStatus_Pending: |
| 667 output.AnswerBufferWithContentType(NULL, 0, ""); | |
| 668 return (void*) ""; | |
| 0 | 669 |
| 416 | 670 default: |
| 671 break; | |
| 0 | 672 } |
| 673 } | |
| 674 | |
| 414 | 675 |
| 896 | 676 // Decompose the URI into its components |
| 0 | 677 UriComponents uri; |
| 415 | 678 try |
| 679 { | |
| 680 Toolbox::SplitUriComponents(uri, request->uri); | |
| 681 } | |
| 682 catch (OrthancException) | |
| 683 { | |
|
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684 output.SendHeader(HttpStatus_400_BadRequest); |
| 415 | 685 return (void*) ""; |
| 686 } | |
| 687 | |
| 0 | 688 |
|
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689 // Loop over the candidate handlers for this URI |
| 896 | 690 LOG(INFO) << EnumerationToString(method) << " " << Toolbox::FlattenUri(uri); |
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691 bool found = false; |
| 896 | 692 bool isError = false; |
| 693 HttpStatus errorStatus; | |
| 694 std::string errorDescription; | |
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695 |
|
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696 for (MongooseServer::Handlers::const_iterator it = |
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697 that->GetHandlers().begin(); it != that->GetHandlers().end(); ++it) |
| 0 | 698 { |
| 699 try | |
| 700 { | |
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701 found = (*it)->Handle(output, method, uri, headers, argumentsGET, body); |
| 0 | 702 } |
| 59 | 703 catch (OrthancException& e) |
| 0 | 704 { |
| 896 | 705 // Using this candidate handler results in an exception, try |
| 706 // another handler before failing | |
| 707 isError = true; | |
| 708 errorStatus = HttpStatus_500_InternalServerError; | |
| 709 errorDescription = e.What(); | |
| 0 | 710 } |
|
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711 catch (boost::bad_lexical_cast&) |
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712 { |
| 896 | 713 isError = true; |
| 714 errorStatus = HttpStatus_400_BadRequest; | |
| 715 errorDescription = "Bad lexical cast"; | |
| 333 | 716 } |
| 717 catch (std::runtime_error&) | |
| 718 { | |
| 896 | 719 isError = true; |
| 720 errorStatus = HttpStatus_400_BadRequest; | |
| 721 errorDescription = "Presumably a bad JSON request"; | |
|
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722 } |
| 0 | 723 } |
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724 |
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725 if (!found) |
| 0 | 726 { |
| 896 | 727 if (isError) |
| 728 { | |
| 729 LOG(ERROR) << "Exception in the HTTP handler: " << errorDescription; | |
| 730 output.SendHeader(errorStatus); | |
| 731 } | |
| 732 else | |
| 733 { | |
| 734 output.SendHeader(HttpStatus_404_NotFound); | |
| 735 } | |
| 0 | 736 } |
| 737 | |
| 896 | 738 |
| 0 | 739 // Mark as processed |
| 740 return (void*) ""; | |
| 741 } | |
| 742 else | |
| 743 { | |
| 744 return NULL; | |
| 745 } | |
| 746 } | |
| 747 | |
| 748 | |
| 749 bool MongooseServer::IsRunning() const | |
| 750 { | |
| 751 return (pimpl_->context_ != NULL); | |
| 752 } | |
| 753 | |
| 754 | |
| 755 MongooseServer::MongooseServer() : pimpl_(new PImpl) | |
| 756 { | |
| 757 pimpl_->context_ = NULL; | |
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758 remoteAllowed_ = false; |
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759 authentication_ = false; |
| 23 | 760 ssl_ = false; |
| 0 | 761 port_ = 8000; |
| 417 | 762 filter_ = NULL; |
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763 |
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764 #if ORTHANC_SSL_ENABLED == 1 |
| 749 | 765 // Check for the Heartbleed exploit |
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766 // https://en.wikipedia.org/wiki/OpenSSL#Heartbleed_bug |
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767 if (OPENSSL_VERSION_NUMBER < 0x1000107fL /* openssl-1.0.1g */ && |
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768 OPENSSL_VERSION_NUMBER >= 0x1000100fL /* openssl-1.0.1 */) |
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769 { |
| 749 | 770 LOG(WARNING) << "This version of OpenSSL is vulnerable to the Heartbleed exploit"; |
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771 } |
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772 #endif |
| 0 | 773 } |
| 774 | |
| 775 | |
| 776 MongooseServer::~MongooseServer() | |
| 777 { | |
| 778 Stop(); | |
| 779 ClearHandlers(); | |
| 780 } | |
| 781 | |
| 782 | |
| 128 | 783 void MongooseServer::SetPortNumber(uint16_t port) |
| 0 | 784 { |
| 785 Stop(); | |
| 786 port_ = port; | |
| 787 } | |
| 788 | |
| 789 void MongooseServer::Start() | |
| 790 { | |
| 791 if (!IsRunning()) | |
| 792 { | |
| 793 std::string port = boost::lexical_cast<std::string>(port_); | |
| 794 | |
| 23 | 795 if (ssl_) |
| 796 { | |
| 797 port += "s"; | |
| 798 } | |
| 799 | |
| 0 | 800 const char *options[] = { |
| 801 "listening_ports", port.c_str(), | |
| 23 | 802 ssl_ ? "ssl_certificate" : NULL, |
| 803 certificate_.c_str(), | |
| 0 | 804 NULL |
| 805 }; | |
| 806 | |
| 807 pimpl_->context_ = mg_start(&Callback, this, options); | |
| 808 if (!pimpl_->context_) | |
| 809 { | |
| 59 | 810 throw OrthancException("Unable to launch the Mongoose server"); |
| 0 | 811 } |
| 812 } | |
| 813 } | |
| 814 | |
| 815 void MongooseServer::Stop() | |
| 816 { | |
| 817 if (IsRunning()) | |
| 818 { | |
| 819 mg_stop(pimpl_->context_); | |
| 820 pimpl_->context_ = NULL; | |
| 821 } | |
| 822 } | |
| 823 | |
| 824 | |
| 899 | 825 void MongooseServer::RegisterHandler(HttpHandler& handler) |
| 0 | 826 { |
| 827 Stop(); | |
| 828 | |
| 899 | 829 handlers_.push_back(&handler); |
| 0 | 830 } |
| 831 | |
| 832 | |
| 833 void MongooseServer::ClearHandlers() | |
| 834 { | |
| 835 Stop(); | |
| 836 } | |
| 837 | |
| 23 | 838 |
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839 void MongooseServer::ClearUsers() |
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840 { |
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841 Stop(); |
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842 registeredUsers_.clear(); |
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843 } |
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844 |
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845 |
| 23 | 846 void MongooseServer::RegisterUser(const char* username, |
| 847 const char* password) | |
| 848 { | |
| 849 Stop(); | |
| 24 | 850 |
| 851 std::string tag = std::string(username) + ":" + std::string(password); | |
|
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852 std::string encoded; |
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853 Toolbox::EncodeBase64(encoded, tag); |
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854 registeredUsers_.insert(encoded); |
| 23 | 855 } |
| 856 | |
| 857 void MongooseServer::SetSslEnabled(bool enabled) | |
| 858 { | |
| 859 Stop(); | |
| 860 | |
| 59 | 861 #if ORTHANC_SSL_ENABLED == 0 |
| 23 | 862 if (enabled) |
| 863 { | |
| 59 | 864 throw OrthancException("Orthanc has been built without SSL support"); |
| 23 | 865 } |
| 866 else | |
| 867 { | |
| 868 ssl_ = false; | |
| 869 } | |
| 870 #else | |
| 871 ssl_ = enabled; | |
| 872 #endif | |
| 873 } | |
| 874 | |
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875 void MongooseServer::SetAuthenticationEnabled(bool enabled) |
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876 { |
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877 Stop(); |
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878 authentication_ = enabled; |
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879 } |
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880 |
| 23 | 881 void MongooseServer::SetSslCertificate(const char* path) |
| 882 { | |
| 883 Stop(); | |
| 884 certificate_ = path; | |
| 885 } | |
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886 |
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887 void MongooseServer::SetRemoteAccessAllowed(bool allowed) |
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888 { |
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889 Stop(); |
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890 remoteAllowed_ = allowed; |
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891 } |
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892 |
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893 void MongooseServer::SetIncomingHttpRequestFilter(IIncomingHttpRequestFilter& filter) |
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894 { |
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895 Stop(); |
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896 filter_ = &filter; |
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897 } |
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898 |
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899 bool MongooseServer::IsValidBasicHttpAuthentication(const std::string& basic) const |
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900 { |
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901 return registeredUsers_.find(basic) != registeredUsers_.end(); |
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902 } |
| 0 | 903 } |