Mercurial > hg > orthanc
annotate Core/HttpServer/MongooseServer.cpp @ 1202:476a17cfdf42
Fix crash when bad HTTP credentials are provided
| author | Sebastien Jodogne <s.jodogne@gmail.com> |
|---|---|
| date | Mon, 27 Oct 2014 13:45:36 +0100 |
| parents | 1d60316c3618 |
| children | 787059de6b9a |
| 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 | |
| 911 | 71 class MongooseOutputStream : public IHttpOutputStream |
| 0 | 72 { |
| 73 private: | |
| 74 struct mg_connection* connection_; | |
| 75 | |
| 911 | 76 public: |
| 77 MongooseOutputStream(struct mg_connection* connection) : connection_(connection) | |
| 78 { | |
| 79 } | |
| 80 | |
| 909 | 81 virtual void Send(bool isHeader, const void* buffer, size_t length) |
| 0 | 82 { |
| 217 | 83 if (length > 0) |
| 84 { | |
| 85 mg_write(connection_, buffer, length); | |
| 86 } | |
| 0 | 87 } |
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88 |
| 911 | 89 virtual void OnHttpStatusReceived(HttpStatus status) |
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90 { |
| 911 | 91 // Ignore this |
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92 } |
| 0 | 93 }; |
| 94 | |
| 95 | |
| 96 enum PostDataStatus | |
| 97 { | |
| 98 PostDataStatus_Success, | |
| 99 PostDataStatus_NoLength, | |
| 100 PostDataStatus_Pending, | |
| 101 PostDataStatus_Failure | |
| 102 }; | |
| 103 } | |
| 104 | |
| 105 | |
| 106 // TODO Move this to external file | |
| 107 | |
| 108 | |
| 109 class ChunkedFile : public ChunkedBuffer | |
| 110 { | |
| 111 private: | |
| 112 std::string filename_; | |
| 113 | |
| 114 public: | |
| 115 ChunkedFile(const std::string& filename) : | |
| 116 filename_(filename) | |
| 117 { | |
| 118 } | |
| 119 | |
| 120 const std::string& GetFilename() const | |
| 121 { | |
| 122 return filename_; | |
| 123 } | |
| 124 }; | |
| 125 | |
| 126 | |
| 127 | |
| 128 class ChunkStore | |
| 129 { | |
| 130 private: | |
| 131 typedef std::list<ChunkedFile*> Content; | |
| 132 Content content_; | |
| 133 unsigned int numPlaces_; | |
| 134 | |
| 135 boost::mutex mutex_; | |
| 136 std::set<std::string> discardedFiles_; | |
| 137 | |
| 138 void Clear() | |
| 139 { | |
| 140 for (Content::iterator it = content_.begin(); | |
| 656 | 141 it != content_.end(); ++it) |
| 0 | 142 { |
| 143 delete *it; | |
| 144 } | |
| 145 } | |
| 146 | |
| 147 Content::iterator Find(const std::string& filename) | |
| 148 { | |
| 149 for (Content::iterator it = content_.begin(); | |
| 656 | 150 it != content_.end(); ++it) |
| 0 | 151 { |
| 152 if ((*it)->GetFilename() == filename) | |
| 153 { | |
| 154 return it; | |
| 155 } | |
| 156 } | |
| 157 | |
| 158 return content_.end(); | |
| 159 } | |
| 160 | |
| 161 void Remove(const std::string& filename) | |
| 162 { | |
| 163 Content::iterator it = Find(filename); | |
| 164 if (it != content_.end()) | |
| 165 { | |
| 166 delete *it; | |
| 167 content_.erase(it); | |
| 168 } | |
| 169 } | |
| 170 | |
| 171 public: | |
| 172 ChunkStore() | |
| 173 { | |
| 174 numPlaces_ = 10; | |
| 175 } | |
| 176 | |
| 177 ~ChunkStore() | |
| 178 { | |
| 179 Clear(); | |
| 180 } | |
| 181 | |
| 182 PostDataStatus Store(std::string& completed, | |
| 183 const char* chunkData, | |
| 184 size_t chunkSize, | |
| 185 const std::string& filename, | |
| 186 size_t filesize) | |
| 187 { | |
| 188 boost::mutex::scoped_lock lock(mutex_); | |
| 189 | |
| 190 std::set<std::string>::iterator wasDiscarded = discardedFiles_.find(filename); | |
| 191 if (wasDiscarded != discardedFiles_.end()) | |
| 192 { | |
| 193 discardedFiles_.erase(wasDiscarded); | |
| 194 return PostDataStatus_Failure; | |
| 195 } | |
| 196 | |
| 197 ChunkedFile* f; | |
| 198 Content::iterator it = Find(filename); | |
| 199 if (it == content_.end()) | |
| 200 { | |
| 201 f = new ChunkedFile(filename); | |
| 202 | |
| 203 // Make some room | |
| 204 if (content_.size() >= numPlaces_) | |
| 205 { | |
| 206 discardedFiles_.insert(content_.front()->GetFilename()); | |
| 207 delete content_.front(); | |
| 208 content_.pop_front(); | |
| 209 } | |
| 210 | |
| 211 content_.push_back(f); | |
| 212 } | |
| 213 else | |
| 214 { | |
| 215 f = *it; | |
| 216 } | |
| 217 | |
| 218 f->AddChunk(chunkData, chunkSize); | |
| 219 | |
| 220 if (f->GetNumBytes() > filesize) | |
| 221 { | |
| 222 Remove(filename); | |
| 223 } | |
| 224 else if (f->GetNumBytes() == filesize) | |
| 225 { | |
| 226 f->Flatten(completed); | |
| 227 Remove(filename); | |
| 228 return PostDataStatus_Success; | |
| 229 } | |
| 230 | |
| 231 return PostDataStatus_Pending; | |
| 232 } | |
| 233 | |
| 234 /*void Print() | |
| 235 { | |
| 236 boost::mutex::scoped_lock lock(mutex_); | |
| 237 | |
| 238 printf("ChunkStore status:\n"); | |
| 239 for (Content::const_iterator i = content_.begin(); | |
| 240 i != content_.end(); i++) | |
| 241 { | |
| 242 printf(" [%s]: %d\n", (*i)->GetFilename().c_str(), (*i)->GetNumBytes()); | |
| 243 } | |
| 244 printf("-----\n"); | |
| 245 }*/ | |
| 246 }; | |
| 247 | |
| 248 | |
| 249 struct MongooseServer::PImpl | |
| 250 { | |
| 251 struct mg_context *context_; | |
| 252 ChunkStore chunkStore_; | |
| 253 }; | |
| 254 | |
| 255 | |
| 256 ChunkStore& MongooseServer::GetChunkStore() | |
| 257 { | |
| 258 return pimpl_->chunkStore_; | |
| 259 } | |
| 260 | |
| 261 | |
| 262 | |
| 416 | 263 static PostDataStatus ReadBody(std::string& postData, |
| 264 struct mg_connection *connection, | |
| 265 const HttpHandler::Arguments& headers) | |
| 0 | 266 { |
| 267 HttpHandler::Arguments::const_iterator cs = headers.find("content-length"); | |
| 268 if (cs == headers.end()) | |
| 269 { | |
| 270 return PostDataStatus_NoLength; | |
| 271 } | |
| 272 | |
| 273 int length; | |
| 274 try | |
| 275 { | |
| 276 length = boost::lexical_cast<int>(cs->second); | |
| 277 } | |
| 278 catch (boost::bad_lexical_cast) | |
| 279 { | |
| 280 return PostDataStatus_NoLength; | |
| 281 } | |
| 282 | |
| 283 if (length < 0) | |
| 284 { | |
| 285 length = 0; | |
| 286 } | |
| 287 | |
| 288 postData.resize(length); | |
| 289 | |
| 290 size_t pos = 0; | |
| 291 while (length > 0) | |
| 292 { | |
| 293 int r = mg_read(connection, &postData[pos], length); | |
| 294 if (r <= 0) | |
| 295 { | |
| 296 return PostDataStatus_Failure; | |
| 297 } | |
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298 |
| 8 | 299 assert(r <= length); |
| 0 | 300 length -= r; |
| 301 pos += r; | |
| 302 } | |
| 303 | |
| 304 return PostDataStatus_Success; | |
| 305 } | |
| 306 | |
| 307 | |
| 308 | |
| 309 static PostDataStatus ParseMultipartPost(std::string &completedFile, | |
| 310 struct mg_connection *connection, | |
| 311 const HttpHandler::Arguments& headers, | |
| 312 const std::string& contentType, | |
| 313 ChunkStore& chunkStore) | |
| 314 { | |
| 315 std::string boundary = "--" + contentType.substr(multipartLength); | |
| 316 | |
| 317 std::string postData; | |
| 416 | 318 PostDataStatus status = ReadBody(postData, connection, headers); |
| 0 | 319 |
| 320 if (status != PostDataStatus_Success) | |
| 321 { | |
| 322 return status; | |
| 323 } | |
| 324 | |
| 325 /*for (HttpHandler::Arguments::const_iterator i = headers.begin(); i != headers.end(); i++) | |
| 326 { | |
| 327 std::cout << "Header [" << i->first << "] = " << i->second << "\n"; | |
| 328 } | |
| 329 printf("CHUNK\n");*/ | |
| 330 | |
| 331 typedef HttpHandler::Arguments::const_iterator ArgumentIterator; | |
| 332 | |
| 333 ArgumentIterator requestedWith = headers.find("x-requested-with"); | |
| 334 ArgumentIterator fileName = headers.find("x-file-name"); | |
| 335 ArgumentIterator fileSizeStr = headers.find("x-file-size"); | |
| 336 | |
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337 if (requestedWith != headers.end() && |
| 0 | 338 requestedWith->second != "XMLHttpRequest") |
| 339 { | |
| 340 return PostDataStatus_Failure; | |
| 341 } | |
| 342 | |
| 343 size_t fileSize = 0; | |
| 344 if (fileSizeStr != headers.end()) | |
| 345 { | |
| 346 try | |
| 347 { | |
| 348 fileSize = boost::lexical_cast<size_t>(fileSizeStr->second); | |
| 349 } | |
| 350 catch (boost::bad_lexical_cast) | |
| 351 { | |
| 352 return PostDataStatus_Failure; | |
| 353 } | |
| 354 } | |
| 355 | |
| 356 typedef boost::find_iterator<std::string::iterator> FindIterator; | |
| 10 | 357 typedef boost::iterator_range<char*> Range; |
| 0 | 358 |
| 359 //chunkStore.Print(); | |
| 360 | |
| 361 try | |
| 362 { | |
| 363 FindIterator last; | |
| 364 for (FindIterator it = | |
| 365 make_find_iterator(postData, boost::first_finder(boundary)); | |
| 366 it!=FindIterator(); | |
| 367 ++it) | |
| 368 { | |
| 369 if (last != FindIterator()) | |
| 370 { | |
| 10 | 371 Range part(&last->back(), &it->front()); |
| 0 | 372 Range content = boost::find_first(part, "\r\n\r\n"); |
| 345 | 373 if (/*content != Range()*/!content.empty()) |
| 0 | 374 { |
| 375 Range c(&content.back() + 1, &it->front() - 2); | |
| 376 size_t chunkSize = c.size(); | |
| 377 | |
| 378 if (chunkSize > 0) | |
| 379 { | |
| 380 const char* chunkData = &c.front(); | |
| 381 | |
| 382 if (fileName == headers.end()) | |
| 383 { | |
| 384 // This file is stored in a single chunk | |
| 385 completedFile.resize(chunkSize); | |
| 386 if (chunkSize > 0) | |
| 387 { | |
| 388 memcpy(&completedFile[0], chunkData, chunkSize); | |
| 389 } | |
| 390 return PostDataStatus_Success; | |
| 391 } | |
| 392 else | |
| 393 { | |
| 394 return chunkStore.Store(completedFile, chunkData, chunkSize, fileName->second, fileSize); | |
| 395 } | |
| 396 } | |
| 10 | 397 } |
| 0 | 398 } |
| 399 | |
| 400 last = it; | |
| 401 } | |
| 402 } | |
| 403 catch (std::length_error) | |
| 404 { | |
| 405 return PostDataStatus_Failure; | |
| 406 } | |
| 407 | |
| 408 return PostDataStatus_Pending; | |
| 409 } | |
| 410 | |
| 411 | |
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412 static bool IsAccessGranted(const MongooseServer& that, |
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413 const HttpHandler::Arguments& headers) |
| 23 | 414 { |
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415 bool granted = false; |
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416 |
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417 HttpHandler::Arguments::const_iterator auth = headers.find("authorization"); |
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418 if (auth != headers.end()) |
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419 { |
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420 std::string s = auth->second; |
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421 if (s.substr(0, 6) == "Basic ") |
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422 { |
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423 std::string b64 = s.substr(6); |
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424 granted = that.IsValidBasicHttpAuthentication(b64); |
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425 } |
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426 } |
| 23 | 427 |
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428 return granted; |
| 23 | 429 } |
| 430 | |
| 431 | |
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432 static std::string GetAuthenticatedUsername(const HttpHandler::Arguments& headers) |
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433 { |
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434 HttpHandler::Arguments::const_iterator auth = headers.find("authorization"); |
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435 |
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436 if (auth == headers.end()) |
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437 { |
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438 return ""; |
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439 } |
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440 |
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441 std::string s = auth->second; |
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442 if (s.substr(0, 6) != "Basic ") |
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443 { |
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444 return ""; |
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445 } |
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446 |
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447 std::string b64 = s.substr(6); |
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448 std::string decoded; |
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449 Toolbox::DecodeBase64(decoded, b64); |
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450 size_t semicolons = decoded.find(':'); |
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451 |
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452 if (semicolons == std::string::npos) |
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453 { |
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454 // Bad-formatted request |
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455 return ""; |
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456 } |
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457 else |
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458 { |
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459 return decoded.substr(0, semicolons); |
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460 } |
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461 } |
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462 |
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463 |
|
473
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|
464 static bool ExtractMethod(HttpMethod& method, |
| 414 | 465 const struct mg_request_info *request, |
| 466 const HttpHandler::Arguments& headers, | |
| 467 const HttpHandler::Arguments& argumentsGET) | |
| 468 { | |
| 469 std::string overriden; | |
| 470 | |
| 471 // Check whether some PUT/DELETE faking is done | |
| 472 | |
| 473 // 1. Faking with Google's approach | |
| 474 HttpHandler::Arguments::const_iterator methodOverride = | |
| 475 headers.find("x-http-method-override"); | |
| 476 | |
| 477 if (methodOverride != headers.end()) | |
| 478 { | |
| 479 overriden = methodOverride->second; | |
| 480 } | |
| 481 else if (!strcmp(request->request_method, "GET")) | |
| 482 { | |
| 483 // 2. Faking with Ruby on Rail's approach | |
| 484 // GET /my/resource?_method=delete <=> DELETE /my/resource | |
| 485 methodOverride = argumentsGET.find("_method"); | |
| 486 if (methodOverride != argumentsGET.end()) | |
| 487 { | |
| 488 overriden = methodOverride->second; | |
| 489 } | |
| 490 } | |
| 491 | |
| 492 if (overriden.size() > 0) | |
| 493 { | |
| 494 // A faking has been done within this request | |
| 495 Toolbox::ToUpperCase(overriden); | |
| 496 | |
| 416 | 497 LOG(INFO) << "HTTP method faking has been detected for " << overriden; |
| 498 | |
| 414 | 499 if (overriden == "PUT") |
| 500 { | |
|
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501 method = HttpMethod_Put; |
| 416 | 502 return true; |
| 414 | 503 } |
| 504 else if (overriden == "DELETE") | |
| 505 { | |
|
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506 method = HttpMethod_Delete; |
| 416 | 507 return true; |
| 414 | 508 } |
| 509 else | |
| 510 { | |
| 511 return false; | |
| 512 } | |
| 513 } | |
| 514 | |
| 515 // No PUT/DELETE faking was present | |
| 516 if (!strcmp(request->request_method, "GET")) | |
| 517 { | |
|
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518 method = HttpMethod_Get; |
| 414 | 519 } |
| 520 else if (!strcmp(request->request_method, "POST")) | |
| 521 { | |
|
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522 method = HttpMethod_Post; |
| 414 | 523 } |
| 524 else if (!strcmp(request->request_method, "DELETE")) | |
| 525 { | |
|
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526 method = HttpMethod_Delete; |
| 414 | 527 } |
| 528 else if (!strcmp(request->request_method, "PUT")) | |
| 529 { | |
|
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530 method = HttpMethod_Put; |
| 414 | 531 } |
| 532 else | |
| 533 { | |
| 534 return false; | |
| 535 } | |
| 536 | |
| 537 return true; | |
| 538 } | |
| 539 | |
| 540 | |
|
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541 static void InternalCallback(struct mg_connection *connection, |
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542 const struct mg_request_info *request) |
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543 { |
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544 MongooseServer* that = reinterpret_cast<MongooseServer*>(request->user_data); |
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545 MongooseOutputStream stream(connection); |
|
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546 HttpOutput output(stream, that->IsKeepAliveEnabled()); |
| 0 | 547 |
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548 // Check remote calls |
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549 if (!that->IsRemoteAccessAllowed() && |
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550 request->remote_ip != LOCALHOST) |
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551 { |
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552 output.SendUnauthorized(ORTHANC_REALM); |
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553 return; |
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554 } |
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555 |
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556 |
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557 // Extract the HTTP headers |
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558 HttpHandler::Arguments headers; |
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559 for (int i = 0; i < request->num_headers; i++) |
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560 { |
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561 std::string name = request->http_headers[i].name; |
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562 std::transform(name.begin(), name.end(), name.begin(), ::tolower); |
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563 headers.insert(std::make_pair(name, request->http_headers[i].value)); |
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564 } |
|
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|
565 |
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566 |
|
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567 // Extract the GET arguments |
|
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568 HttpHandler::Arguments argumentsGET; |
|
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|
569 if (!strcmp(request->request_method, "GET")) |
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570 { |
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571 HttpHandler::ParseGetArguments(argumentsGET, request->query_string); |
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572 } |
|
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573 |
|
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|
574 |
|
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|
575 // Compute the HTTP method, taking method faking into consideration |
|
1122
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576 HttpMethod method = HttpMethod_Get; |
|
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577 if (!ExtractMethod(method, request, headers, argumentsGET)) |
|
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578 { |
|
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579 output.SendStatus(HttpStatus_400_BadRequest); |
|
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580 return; |
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581 } |
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582 |
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|
583 |
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584 // Authenticate this connection |
|
1202
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Fix crash when bad HTTP credentials are provided
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585 if (that->IsAuthenticationEnabled() && !IsAccessGranted(*that, headers)) |
|
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586 { |
|
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587 output.SendUnauthorized(ORTHANC_REALM); |
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588 return; |
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589 } |
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|
590 |
|
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|
591 |
|
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592 // Apply the filter, if it is installed |
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593 const IIncomingHttpRequestFilter *filter = that->GetIncomingHttpRequestFilter(); |
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594 if (filter != NULL) |
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595 { |
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596 std::string username = GetAuthenticatedUsername(headers); |
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597 |
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598 char remoteIp[24]; |
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599 sprintf(remoteIp, "%d.%d.%d.%d", |
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600 reinterpret_cast<const uint8_t*>(&request->remote_ip) [3], |
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601 reinterpret_cast<const uint8_t*>(&request->remote_ip) [2], |
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602 reinterpret_cast<const uint8_t*>(&request->remote_ip) [1], |
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603 reinterpret_cast<const uint8_t*>(&request->remote_ip) [0]); |
|
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|
604 |
|
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605 if (!filter->IsAllowed(method, request->uri, remoteIp, username.c_str())) |
|
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606 { |
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607 output.SendUnauthorized(ORTHANC_REALM); |
|
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608 return; |
|
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609 } |
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610 } |
|
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|
611 |
|
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|
612 |
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613 // Extract the body of the request for PUT and POST |
|
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614 std::string body; |
|
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615 if (method == HttpMethod_Post || |
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616 method == HttpMethod_Put) |
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617 { |
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618 PostDataStatus status; |
|
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|
619 |
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620 HttpHandler::Arguments::const_iterator ct = headers.find("content-type"); |
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621 if (ct == headers.end()) |
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622 { |
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623 // No content-type specified. Assume no multi-part content occurs at this point. |
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624 status = ReadBody(body, connection, headers); |
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625 } |
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626 else |
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627 { |
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628 std::string contentType = ct->second; |
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629 if (contentType.size() >= multipartLength && |
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630 !memcmp(contentType.c_str(), multipart, multipartLength)) |
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|
631 { |
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632 status = ParseMultipartPost(body, connection, headers, contentType, that->GetChunkStore()); |
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633 } |
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634 else |
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635 { |
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636 status = ReadBody(body, connection, headers); |
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637 } |
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638 } |
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639 |
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640 switch (status) |
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641 { |
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642 case PostDataStatus_NoLength: |
|
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643 output.SendStatus(HttpStatus_411_LengthRequired); |
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644 return; |
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645 |
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646 case PostDataStatus_Failure: |
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647 output.SendStatus(HttpStatus_400_BadRequest); |
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648 return; |
|
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649 |
|
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650 case PostDataStatus_Pending: |
|
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651 output.SendBody(); |
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652 return; |
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653 |
|
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654 default: |
|
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655 break; |
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656 } |
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657 } |
|
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658 |
|
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659 |
|
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660 // Decompose the URI into its components |
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661 UriComponents uri; |
|
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662 try |
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663 { |
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664 Toolbox::SplitUriComponents(uri, request->uri); |
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665 } |
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666 catch (OrthancException) |
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667 { |
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668 output.SendStatus(HttpStatus_400_BadRequest); |
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669 return; |
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670 } |
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671 |
|
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672 |
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673 // Loop over the candidate handlers for this URI |
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674 LOG(INFO) << EnumerationToString(method) << " " << Toolbox::FlattenUri(uri); |
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675 bool found = false; |
|
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676 |
|
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677 for (MongooseServer::Handlers::const_iterator it = |
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678 that->GetHandlers().begin(); it != that->GetHandlers().end() && !found; ++it) |
|
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|
679 { |
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680 try |
|
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|
681 { |
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682 found = (*it)->Handle(output, method, uri, headers, argumentsGET, body); |
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683 } |
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684 catch (OrthancException& e) |
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685 { |
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686 // Using this candidate handler results in an exception |
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687 LOG(ERROR) << "Exception in the HTTP handler: " << e.What(); |
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688 |
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689 switch (e.GetErrorCode()) |
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690 { |
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691 case ErrorCode_InexistentFile: |
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692 case ErrorCode_InexistentItem: |
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693 case ErrorCode_UnknownResource: |
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694 output.SendStatus(HttpStatus_404_NotFound); |
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695 break; |
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696 |
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697 case ErrorCode_BadRequest: |
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698 case ErrorCode_UriSyntax: |
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699 output.SendStatus(HttpStatus_400_BadRequest); |
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700 break; |
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701 |
|
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702 default: |
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703 output.SendStatus(HttpStatus_500_InternalServerError); |
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704 } |
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|
705 |
|
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706 return; |
|
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707 } |
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708 catch (boost::bad_lexical_cast&) |
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|
709 { |
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710 LOG(ERROR) << "Exception in the HTTP handler: Bad lexical cast"; |
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711 output.SendStatus(HttpStatus_400_BadRequest); |
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712 return; |
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713 } |
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714 catch (std::runtime_error&) |
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|
715 { |
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716 LOG(ERROR) << "Exception in the HTTP handler: Presumably a bad JSON request"; |
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|
717 output.SendStatus(HttpStatus_400_BadRequest); |
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718 return; |
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719 } |
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720 } |
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|
721 |
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722 if (!found) |
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|
723 { |
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724 output.SendStatus(HttpStatus_404_NotFound); |
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725 } |
|
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|
726 } |
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|
727 |
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|
728 |
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|
729 #if MONGOOSE_USE_CALLBACKS == 0 |
| 0 | 730 static void* Callback(enum mg_event event, |
| 731 struct mg_connection *connection, | |
| 732 const struct mg_request_info *request) | |
| 733 { | |
| 734 if (event == MG_NEW_REQUEST) | |
| 735 { | |
|
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|
736 InternalCallback(connection, request); |
| 0 | 737 |
| 738 // Mark as processed | |
| 739 return (void*) ""; | |
|
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|
740 } |
|
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|
741 else |
| 0 | 742 { |
| 743 return NULL; | |
| 744 } | |
| 745 } | |
| 746 | |
|
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|
747 #elif MONGOOSE_USE_CALLBACKS == 1 |
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|
748 static int Callback(struct mg_connection *connection) |
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749 { |
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750 struct mg_request_info *request = mg_get_request_info(connection); |
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751 |
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752 InternalCallback(connection, request); |
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753 |
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754 return 1; // Do not let Mongoose handle the request by itself |
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755 } |
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756 |
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757 #else |
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758 #error Please set MONGOOSE_USE_CALLBACKS |
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759 #endif |
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760 |
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761 |
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762 |
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763 |
| 0 | 764 |
| 765 bool MongooseServer::IsRunning() const | |
| 766 { | |
| 767 return (pimpl_->context_ != NULL); | |
| 768 } | |
| 769 | |
| 770 | |
| 771 MongooseServer::MongooseServer() : pimpl_(new PImpl) | |
| 772 { | |
| 773 pimpl_->context_ = NULL; | |
|
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774 remoteAllowed_ = false; |
|
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775 authentication_ = false; |
| 23 | 776 ssl_ = false; |
| 0 | 777 port_ = 8000; |
| 417 | 778 filter_ = NULL; |
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779 keepAlive_ = false; |
|
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780 |
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781 #if ORTHANC_SSL_ENABLED == 1 |
| 749 | 782 // Check for the Heartbleed exploit |
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783 // https://en.wikipedia.org/wiki/OpenSSL#Heartbleed_bug |
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784 if (OPENSSL_VERSION_NUMBER < 0x1000107fL /* openssl-1.0.1g */ && |
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785 OPENSSL_VERSION_NUMBER >= 0x1000100fL /* openssl-1.0.1 */) |
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786 { |
| 749 | 787 LOG(WARNING) << "This version of OpenSSL is vulnerable to the Heartbleed exploit"; |
|
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788 } |
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789 #endif |
| 0 | 790 } |
| 791 | |
| 792 | |
| 793 MongooseServer::~MongooseServer() | |
| 794 { | |
| 795 Stop(); | |
| 796 ClearHandlers(); | |
| 797 } | |
| 798 | |
| 799 | |
| 128 | 800 void MongooseServer::SetPortNumber(uint16_t port) |
| 0 | 801 { |
| 802 Stop(); | |
| 803 port_ = port; | |
| 804 } | |
| 805 | |
| 806 void MongooseServer::Start() | |
| 807 { | |
| 808 if (!IsRunning()) | |
| 809 { | |
| 810 std::string port = boost::lexical_cast<std::string>(port_); | |
| 811 | |
| 23 | 812 if (ssl_) |
| 813 { | |
| 814 port += "s"; | |
| 815 } | |
| 816 | |
| 0 | 817 const char *options[] = { |
|
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818 // Set the TCP port for the HTTP server |
| 0 | 819 "listening_ports", port.c_str(), |
|
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820 |
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821 // Optimization reported by Chris Hafey |
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822 // https://groups.google.com/d/msg/orthanc-users/CKueKX0pJ9E/_UCbl8T-VjIJ |
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823 "enable_keep_alive", (keepAlive_ ? "yes" : "no"), |
|
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824 |
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825 // Set the SSL certificate, if any. This must be the last option. |
| 23 | 826 ssl_ ? "ssl_certificate" : NULL, |
| 827 certificate_.c_str(), | |
| 0 | 828 NULL |
| 829 }; | |
| 830 | |
|
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831 #if MONGOOSE_USE_CALLBACKS == 0 |
| 0 | 832 pimpl_->context_ = mg_start(&Callback, this, options); |
|
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833 |
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834 #elif MONGOOSE_USE_CALLBACKS == 1 |
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835 struct mg_callbacks callbacks; |
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836 memset(&callbacks, 0, sizeof(callbacks)); |
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837 callbacks.begin_request = Callback; |
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838 pimpl_->context_ = mg_start(&callbacks, this, options); |
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839 |
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840 #else |
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841 #error Please set MONGOOSE_USE_CALLBACKS |
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842 #endif |
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843 |
| 0 | 844 if (!pimpl_->context_) |
| 845 { | |
| 59 | 846 throw OrthancException("Unable to launch the Mongoose server"); |
| 0 | 847 } |
| 848 } | |
| 849 } | |
| 850 | |
| 851 void MongooseServer::Stop() | |
| 852 { | |
| 853 if (IsRunning()) | |
| 854 { | |
| 855 mg_stop(pimpl_->context_); | |
| 856 pimpl_->context_ = NULL; | |
| 857 } | |
| 858 } | |
| 859 | |
| 860 | |
| 899 | 861 void MongooseServer::RegisterHandler(HttpHandler& handler) |
| 0 | 862 { |
| 863 Stop(); | |
| 864 | |
| 899 | 865 handlers_.push_back(&handler); |
| 0 | 866 } |
| 867 | |
| 868 | |
| 869 void MongooseServer::ClearHandlers() | |
| 870 { | |
| 871 Stop(); | |
| 872 } | |
| 873 | |
| 23 | 874 |
|
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875 void MongooseServer::ClearUsers() |
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876 { |
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877 Stop(); |
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878 registeredUsers_.clear(); |
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879 } |
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880 |
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881 |
| 23 | 882 void MongooseServer::RegisterUser(const char* username, |
| 883 const char* password) | |
| 884 { | |
| 885 Stop(); | |
| 24 | 886 |
| 887 std::string tag = std::string(username) + ":" + std::string(password); | |
|
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888 std::string encoded; |
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889 Toolbox::EncodeBase64(encoded, tag); |
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890 registeredUsers_.insert(encoded); |
| 23 | 891 } |
| 892 | |
| 893 void MongooseServer::SetSslEnabled(bool enabled) | |
| 894 { | |
| 895 Stop(); | |
| 896 | |
| 59 | 897 #if ORTHANC_SSL_ENABLED == 0 |
| 23 | 898 if (enabled) |
| 899 { | |
| 59 | 900 throw OrthancException("Orthanc has been built without SSL support"); |
| 23 | 901 } |
| 902 else | |
| 903 { | |
| 904 ssl_ = false; | |
| 905 } | |
| 906 #else | |
| 907 ssl_ = enabled; | |
| 908 #endif | |
| 909 } | |
| 910 | |
|
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911 |
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912 void MongooseServer::SetKeepAliveEnabled(bool enabled) |
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913 { |
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914 Stop(); |
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915 keepAlive_ = enabled; |
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916 LOG(WARNING) << "HTTP keep alive is " << (enabled ? "enabled" : "disabled"); |
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917 } |
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918 |
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919 |
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920 void MongooseServer::SetAuthenticationEnabled(bool enabled) |
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921 { |
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922 Stop(); |
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923 authentication_ = enabled; |
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924 } |
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925 |
| 23 | 926 void MongooseServer::SetSslCertificate(const char* path) |
| 927 { | |
| 928 Stop(); | |
| 929 certificate_ = path; | |
| 930 } | |
|
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931 |
|
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932 void MongooseServer::SetRemoteAccessAllowed(bool allowed) |
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933 { |
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934 Stop(); |
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935 remoteAllowed_ = allowed; |
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936 } |
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937 |
|
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938 void MongooseServer::SetIncomingHttpRequestFilter(IIncomingHttpRequestFilter& filter) |
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939 { |
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940 Stop(); |
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941 filter_ = &filter; |
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942 } |
|
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943 |
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944 bool MongooseServer::IsValidBasicHttpAuthentication(const std::string& basic) const |
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945 { |
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946 return registeredUsers_.find(basic) != registeredUsers_.end(); |
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947 } |
| 0 | 948 } |