Mercurial > hg > orthanc
annotate Core/HttpServer/MongooseServer.cpp @ 2134:ddc75c6c712d
Avoid hard crash if not enough memory
| author | Sebastien Jodogne <s.jodogne@gmail.com> |
|---|---|
| date | Wed, 09 Nov 2016 12:04:09 +0100 |
| parents | 15ae532af70e |
| children | dd609a99d39a |
| rev | line source |
|---|---|
| 0 | 1 /** |
| 59 | 2 * Orthanc - A Lightweight, RESTful DICOM Store |
| 1900 | 3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics |
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4 * Department, University Hospital of Liege, Belgium |
| 0 | 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 | |
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38 #include "../Logging.h" |
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39 #include "../ChunkedBuffer.h" |
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40 #include "HttpToolbox.h" |
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41 #include "mongoose.h" |
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42 |
| 0 | 43 #include <algorithm> |
| 44 #include <string.h> | |
| 45 #include <boost/lexical_cast.hpp> | |
| 46 #include <boost/algorithm/string.hpp> | |
| 47 #include <iostream> | |
| 48 #include <string.h> | |
| 49 #include <stdio.h> | |
| 50 #include <boost/thread.hpp> | |
| 51 | |
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52 #if ORTHANC_SSL_ENABLED == 1 |
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53 #include <openssl/opensslv.h> |
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54 #endif |
| 0 | 55 |
| 59 | 56 #define ORTHANC_REALM "Orthanc Secure Area" |
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57 |
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58 static const long LOCALHOST = (127ll << 24) + 1ll; |
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59 |
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60 |
| 59 | 61 namespace Orthanc |
| 0 | 62 { |
| 63 static const char multipart[] = "multipart/form-data; boundary="; | |
| 64 static unsigned int multipartLength = sizeof(multipart) / sizeof(char) - 1; | |
| 65 | |
| 66 | |
| 67 namespace | |
| 68 { | |
| 69 // Anonymous namespace to avoid clashes between compilation modules | |
| 911 | 70 class MongooseOutputStream : public IHttpOutputStream |
| 0 | 71 { |
| 72 private: | |
| 73 struct mg_connection* connection_; | |
| 74 | |
| 911 | 75 public: |
| 76 MongooseOutputStream(struct mg_connection* connection) : connection_(connection) | |
| 77 { | |
| 78 } | |
| 79 | |
| 909 | 80 virtual void Send(bool isHeader, const void* buffer, size_t length) |
| 0 | 81 { |
| 217 | 82 if (length > 0) |
| 83 { | |
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84 int status = mg_write(connection_, buffer, length); |
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85 if (status != static_cast<int>(length)) |
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86 { |
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87 // status == 0 when the connection has been closed, -1 on error |
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88 throw OrthancException(ErrorCode_NetworkProtocol); |
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89 } |
| 217 | 90 } |
| 0 | 91 } |
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92 |
| 911 | 93 virtual void OnHttpStatusReceived(HttpStatus status) |
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94 { |
| 911 | 95 // Ignore this |
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96 } |
| 0 | 97 }; |
| 98 | |
| 99 | |
| 100 enum PostDataStatus | |
| 101 { | |
| 102 PostDataStatus_Success, | |
| 103 PostDataStatus_NoLength, | |
| 104 PostDataStatus_Pending, | |
| 105 PostDataStatus_Failure | |
| 106 }; | |
| 107 } | |
| 108 | |
| 109 | |
| 110 // TODO Move this to external file | |
| 111 | |
| 112 | |
| 113 class ChunkedFile : public ChunkedBuffer | |
| 114 { | |
| 115 private: | |
| 116 std::string filename_; | |
| 117 | |
| 118 public: | |
| 119 ChunkedFile(const std::string& filename) : | |
| 120 filename_(filename) | |
| 121 { | |
| 122 } | |
| 123 | |
| 124 const std::string& GetFilename() const | |
| 125 { | |
| 126 return filename_; | |
| 127 } | |
| 128 }; | |
| 129 | |
| 130 | |
| 131 | |
| 132 class ChunkStore | |
| 133 { | |
| 134 private: | |
| 135 typedef std::list<ChunkedFile*> Content; | |
| 136 Content content_; | |
| 137 unsigned int numPlaces_; | |
| 138 | |
| 139 boost::mutex mutex_; | |
| 140 std::set<std::string> discardedFiles_; | |
| 141 | |
| 142 void Clear() | |
| 143 { | |
| 144 for (Content::iterator it = content_.begin(); | |
| 656 | 145 it != content_.end(); ++it) |
| 0 | 146 { |
| 147 delete *it; | |
| 148 } | |
| 149 } | |
| 150 | |
| 151 Content::iterator Find(const std::string& filename) | |
| 152 { | |
| 153 for (Content::iterator it = content_.begin(); | |
| 656 | 154 it != content_.end(); ++it) |
| 0 | 155 { |
| 156 if ((*it)->GetFilename() == filename) | |
| 157 { | |
| 158 return it; | |
| 159 } | |
| 160 } | |
| 161 | |
| 162 return content_.end(); | |
| 163 } | |
| 164 | |
| 165 void Remove(const std::string& filename) | |
| 166 { | |
| 167 Content::iterator it = Find(filename); | |
| 168 if (it != content_.end()) | |
| 169 { | |
| 170 delete *it; | |
| 171 content_.erase(it); | |
| 172 } | |
| 173 } | |
| 174 | |
| 175 public: | |
| 176 ChunkStore() | |
| 177 { | |
| 178 numPlaces_ = 10; | |
| 179 } | |
| 180 | |
| 181 ~ChunkStore() | |
| 182 { | |
| 183 Clear(); | |
| 184 } | |
| 185 | |
| 186 PostDataStatus Store(std::string& completed, | |
| 187 const char* chunkData, | |
| 188 size_t chunkSize, | |
| 189 const std::string& filename, | |
| 190 size_t filesize) | |
| 191 { | |
| 192 boost::mutex::scoped_lock lock(mutex_); | |
| 193 | |
| 194 std::set<std::string>::iterator wasDiscarded = discardedFiles_.find(filename); | |
| 195 if (wasDiscarded != discardedFiles_.end()) | |
| 196 { | |
| 197 discardedFiles_.erase(wasDiscarded); | |
| 198 return PostDataStatus_Failure; | |
| 199 } | |
| 200 | |
| 201 ChunkedFile* f; | |
| 202 Content::iterator it = Find(filename); | |
| 203 if (it == content_.end()) | |
| 204 { | |
| 205 f = new ChunkedFile(filename); | |
| 206 | |
| 207 // Make some room | |
| 208 if (content_.size() >= numPlaces_) | |
| 209 { | |
| 210 discardedFiles_.insert(content_.front()->GetFilename()); | |
| 211 delete content_.front(); | |
| 212 content_.pop_front(); | |
| 213 } | |
| 214 | |
| 215 content_.push_back(f); | |
| 216 } | |
| 217 else | |
| 218 { | |
| 219 f = *it; | |
| 220 } | |
| 221 | |
| 222 f->AddChunk(chunkData, chunkSize); | |
| 223 | |
| 224 if (f->GetNumBytes() > filesize) | |
| 225 { | |
| 226 Remove(filename); | |
| 227 } | |
| 228 else if (f->GetNumBytes() == filesize) | |
| 229 { | |
| 230 f->Flatten(completed); | |
| 231 Remove(filename); | |
| 232 return PostDataStatus_Success; | |
| 233 } | |
| 234 | |
| 235 return PostDataStatus_Pending; | |
| 236 } | |
| 237 | |
| 238 /*void Print() | |
| 239 { | |
| 240 boost::mutex::scoped_lock lock(mutex_); | |
| 241 | |
| 242 printf("ChunkStore status:\n"); | |
| 243 for (Content::const_iterator i = content_.begin(); | |
| 244 i != content_.end(); i++) | |
| 245 { | |
| 246 printf(" [%s]: %d\n", (*i)->GetFilename().c_str(), (*i)->GetNumBytes()); | |
| 247 } | |
| 248 printf("-----\n"); | |
| 249 }*/ | |
| 250 }; | |
| 251 | |
| 252 | |
| 253 struct MongooseServer::PImpl | |
| 254 { | |
| 255 struct mg_context *context_; | |
| 256 ChunkStore chunkStore_; | |
| 257 }; | |
| 258 | |
| 259 | |
| 260 ChunkStore& MongooseServer::GetChunkStore() | |
| 261 { | |
| 262 return pimpl_->chunkStore_; | |
| 263 } | |
| 264 | |
| 265 | |
| 266 | |
| 416 | 267 static PostDataStatus ReadBody(std::string& postData, |
| 268 struct mg_connection *connection, | |
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269 const IHttpHandler::Arguments& headers) |
| 0 | 270 { |
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271 IHttpHandler::Arguments::const_iterator cs = headers.find("content-length"); |
| 0 | 272 if (cs == headers.end()) |
| 273 { | |
| 274 return PostDataStatus_NoLength; | |
| 275 } | |
| 276 | |
| 277 int length; | |
| 278 try | |
| 279 { | |
| 280 length = boost::lexical_cast<int>(cs->second); | |
| 281 } | |
| 282 catch (boost::bad_lexical_cast) | |
| 283 { | |
| 284 return PostDataStatus_NoLength; | |
| 285 } | |
| 286 | |
| 287 if (length < 0) | |
| 288 { | |
| 289 length = 0; | |
| 290 } | |
| 291 | |
| 292 postData.resize(length); | |
| 293 | |
| 294 size_t pos = 0; | |
| 295 while (length > 0) | |
| 296 { | |
| 297 int r = mg_read(connection, &postData[pos], length); | |
| 298 if (r <= 0) | |
| 299 { | |
| 300 return PostDataStatus_Failure; | |
| 301 } | |
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302 |
| 8 | 303 assert(r <= length); |
| 0 | 304 length -= r; |
| 305 pos += r; | |
| 306 } | |
| 307 | |
| 308 return PostDataStatus_Success; | |
| 309 } | |
| 310 | |
| 311 | |
| 312 | |
| 313 static PostDataStatus ParseMultipartPost(std::string &completedFile, | |
| 314 struct mg_connection *connection, | |
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315 const IHttpHandler::Arguments& headers, |
| 0 | 316 const std::string& contentType, |
| 317 ChunkStore& chunkStore) | |
| 318 { | |
| 319 std::string boundary = "--" + contentType.substr(multipartLength); | |
| 320 | |
| 321 std::string postData; | |
| 416 | 322 PostDataStatus status = ReadBody(postData, connection, headers); |
| 0 | 323 |
| 324 if (status != PostDataStatus_Success) | |
| 325 { | |
| 326 return status; | |
| 327 } | |
| 328 | |
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329 /*for (IHttpHandler::Arguments::const_iterator i = headers.begin(); i != headers.end(); i++) |
| 0 | 330 { |
| 331 std::cout << "Header [" << i->first << "] = " << i->second << "\n"; | |
| 332 } | |
| 333 printf("CHUNK\n");*/ | |
| 334 | |
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335 typedef IHttpHandler::Arguments::const_iterator ArgumentIterator; |
| 0 | 336 |
| 337 ArgumentIterator requestedWith = headers.find("x-requested-with"); | |
| 338 ArgumentIterator fileName = headers.find("x-file-name"); | |
| 339 ArgumentIterator fileSizeStr = headers.find("x-file-size"); | |
| 340 | |
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341 if (requestedWith != headers.end() && |
| 0 | 342 requestedWith->second != "XMLHttpRequest") |
| 343 { | |
| 344 return PostDataStatus_Failure; | |
| 345 } | |
| 346 | |
| 347 size_t fileSize = 0; | |
| 348 if (fileSizeStr != headers.end()) | |
| 349 { | |
| 350 try | |
| 351 { | |
| 352 fileSize = boost::lexical_cast<size_t>(fileSizeStr->second); | |
| 353 } | |
| 354 catch (boost::bad_lexical_cast) | |
| 355 { | |
| 356 return PostDataStatus_Failure; | |
| 357 } | |
| 358 } | |
| 359 | |
| 360 typedef boost::find_iterator<std::string::iterator> FindIterator; | |
| 10 | 361 typedef boost::iterator_range<char*> Range; |
| 0 | 362 |
| 363 //chunkStore.Print(); | |
| 364 | |
| 365 try | |
| 366 { | |
| 367 FindIterator last; | |
| 368 for (FindIterator it = | |
| 369 make_find_iterator(postData, boost::first_finder(boundary)); | |
| 370 it!=FindIterator(); | |
| 371 ++it) | |
| 372 { | |
| 373 if (last != FindIterator()) | |
| 374 { | |
| 10 | 375 Range part(&last->back(), &it->front()); |
| 0 | 376 Range content = boost::find_first(part, "\r\n\r\n"); |
| 345 | 377 if (/*content != Range()*/!content.empty()) |
| 0 | 378 { |
| 379 Range c(&content.back() + 1, &it->front() - 2); | |
| 380 size_t chunkSize = c.size(); | |
| 381 | |
| 382 if (chunkSize > 0) | |
| 383 { | |
| 384 const char* chunkData = &c.front(); | |
| 385 | |
| 386 if (fileName == headers.end()) | |
| 387 { | |
| 388 // This file is stored in a single chunk | |
| 389 completedFile.resize(chunkSize); | |
| 390 if (chunkSize > 0) | |
| 391 { | |
| 392 memcpy(&completedFile[0], chunkData, chunkSize); | |
| 393 } | |
| 394 return PostDataStatus_Success; | |
| 395 } | |
| 396 else | |
| 397 { | |
| 398 return chunkStore.Store(completedFile, chunkData, chunkSize, fileName->second, fileSize); | |
| 399 } | |
| 400 } | |
| 10 | 401 } |
| 0 | 402 } |
| 403 | |
| 404 last = it; | |
| 405 } | |
| 406 } | |
| 407 catch (std::length_error) | |
| 408 { | |
| 409 return PostDataStatus_Failure; | |
| 410 } | |
| 411 | |
| 412 return PostDataStatus_Pending; | |
| 413 } | |
| 414 | |
| 415 | |
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416 static bool IsAccessGranted(const MongooseServer& that, |
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417 const IHttpHandler::Arguments& headers) |
| 23 | 418 { |
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419 bool granted = false; |
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420 |
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421 IHttpHandler::Arguments::const_iterator auth = headers.find("authorization"); |
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422 if (auth != headers.end()) |
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423 { |
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424 std::string s = auth->second; |
| 1213 | 425 if (s.size() > 6 && |
| 426 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 return granted; |
| 23 | 434 } |
| 435 | |
| 436 | |
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437 static std::string GetAuthenticatedUsername(const IHttpHandler::Arguments& headers) |
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438 { |
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439 IHttpHandler::Arguments::const_iterator auth = headers.find("authorization"); |
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440 |
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441 if (auth == headers.end()) |
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442 { |
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443 return ""; |
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444 } |
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445 |
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446 std::string s = auth->second; |
| 1213 | 447 if (s.size() <= 6 || |
| 448 s.substr(0, 6) != "Basic ") | |
|
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449 { |
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450 return ""; |
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451 } |
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452 |
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453 std::string b64 = s.substr(6); |
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454 std::string decoded; |
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455 Toolbox::DecodeBase64(decoded, b64); |
|
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456 size_t semicolons = decoded.find(':'); |
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457 |
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458 if (semicolons == std::string::npos) |
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459 { |
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460 // Bad-formatted request |
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461 return ""; |
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462 } |
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463 else |
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464 { |
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465 return decoded.substr(0, semicolons); |
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466 } |
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467 } |
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468 |
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469 |
|
473
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470 static bool ExtractMethod(HttpMethod& method, |
| 414 | 471 const struct mg_request_info *request, |
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472 const IHttpHandler::Arguments& headers, |
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473 const IHttpHandler::GetArguments& argumentsGET) |
| 414 | 474 { |
| 475 std::string overriden; | |
| 476 | |
| 477 // Check whether some PUT/DELETE faking is done | |
| 478 | |
| 479 // 1. Faking with Google's approach | |
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480 IHttpHandler::Arguments::const_iterator methodOverride = |
| 414 | 481 headers.find("x-http-method-override"); |
| 482 | |
| 483 if (methodOverride != headers.end()) | |
| 484 { | |
| 485 overriden = methodOverride->second; | |
| 486 } | |
| 487 else if (!strcmp(request->request_method, "GET")) | |
| 488 { | |
| 489 // 2. Faking with Ruby on Rail's approach | |
| 490 // GET /my/resource?_method=delete <=> DELETE /my/resource | |
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491 for (size_t i = 0; i < argumentsGET.size(); i++) |
| 414 | 492 { |
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493 if (argumentsGET[i].first == "_method") |
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494 { |
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495 overriden = argumentsGET[i].second; |
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496 break; |
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497 } |
| 414 | 498 } |
| 499 } | |
| 500 | |
| 501 if (overriden.size() > 0) | |
| 502 { | |
| 503 // A faking has been done within this request | |
| 504 Toolbox::ToUpperCase(overriden); | |
| 505 | |
| 416 | 506 LOG(INFO) << "HTTP method faking has been detected for " << overriden; |
| 507 | |
| 414 | 508 if (overriden == "PUT") |
| 509 { | |
|
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510 method = HttpMethod_Put; |
| 416 | 511 return true; |
| 414 | 512 } |
| 513 else if (overriden == "DELETE") | |
| 514 { | |
|
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515 method = HttpMethod_Delete; |
| 416 | 516 return true; |
| 414 | 517 } |
| 518 else | |
| 519 { | |
| 520 return false; | |
| 521 } | |
| 522 } | |
| 523 | |
| 524 // No PUT/DELETE faking was present | |
| 525 if (!strcmp(request->request_method, "GET")) | |
| 526 { | |
|
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527 method = HttpMethod_Get; |
| 414 | 528 } |
| 529 else if (!strcmp(request->request_method, "POST")) | |
| 530 { | |
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531 method = HttpMethod_Post; |
| 414 | 532 } |
| 533 else if (!strcmp(request->request_method, "DELETE")) | |
| 534 { | |
|
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535 method = HttpMethod_Delete; |
| 414 | 536 } |
| 537 else if (!strcmp(request->request_method, "PUT")) | |
| 538 { | |
|
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539 method = HttpMethod_Put; |
| 414 | 540 } |
| 541 else | |
| 542 { | |
| 543 return false; | |
| 544 } | |
| 545 | |
| 546 return true; | |
| 547 } | |
| 548 | |
| 549 | |
| 1517 | 550 static void ConfigureHttpCompression(HttpOutput& output, |
| 551 const IHttpHandler::Arguments& headers) | |
| 552 { | |
| 553 // Look if the client wishes HTTP compression | |
| 554 // https://en.wikipedia.org/wiki/HTTP_compression | |
| 555 IHttpHandler::Arguments::const_iterator it = headers.find("accept-encoding"); | |
| 556 if (it != headers.end()) | |
| 557 { | |
| 558 std::vector<std::string> encodings; | |
| 559 Toolbox::TokenizeString(encodings, it->second, ','); | |
| 560 | |
| 561 for (size_t i = 0; i < encodings.size(); i++) | |
| 562 { | |
| 563 std::string s = Toolbox::StripSpaces(encodings[i]); | |
| 564 | |
| 565 if (s == "deflate") | |
| 566 { | |
| 567 output.SetDeflateAllowed(true); | |
| 568 } | |
| 569 else if (s == "gzip") | |
| 570 { | |
| 571 output.SetGzipAllowed(true); | |
| 572 } | |
| 573 } | |
| 574 } | |
| 575 } | |
| 576 | |
| 577 | |
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578 static void InternalCallback(HttpOutput& output /* out */, |
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579 HttpMethod& method /* out */, |
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580 MongooseServer& server, |
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581 struct mg_connection *connection, |
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582 const struct mg_request_info *request) |
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583 { |
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584 // Check remote calls |
|
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585 if (!server.IsRemoteAccessAllowed() && |
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586 request->remote_ip != LOCALHOST) |
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587 { |
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588 output.SendUnauthorized(ORTHANC_REALM); |
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589 return; |
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590 } |
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591 |
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592 |
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593 // Extract the HTTP headers |
|
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594 IHttpHandler::Arguments headers; |
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595 for (int i = 0; i < request->num_headers; i++) |
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596 { |
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597 std::string name = request->http_headers[i].name; |
|
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598 std::string value = request->http_headers[i].value; |
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599 |
|
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600 std::transform(name.begin(), name.end(), name.begin(), ::tolower); |
|
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601 headers.insert(std::make_pair(name, value)); |
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602 VLOG(1) << "HTTP header: [" << name << "]: [" << value << "]"; |
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603 } |
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604 |
|
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605 if (server.IsHttpCompressionEnabled()) |
| 1517 | 606 { |
| 607 ConfigureHttpCompression(output, headers); | |
| 608 } | |
| 609 | |
|
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610 |
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611 // Extract the GET arguments |
|
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612 IHttpHandler::GetArguments argumentsGET; |
|
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613 if (!strcmp(request->request_method, "GET")) |
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614 { |
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615 HttpToolbox::ParseGetArguments(argumentsGET, request->query_string); |
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616 } |
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617 |
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618 |
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619 // Compute the HTTP method, taking method faking into consideration |
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620 method = HttpMethod_Get; |
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621 if (!ExtractMethod(method, request, headers, argumentsGET)) |
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622 { |
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623 output.SendStatus(HttpStatus_400_BadRequest); |
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624 return; |
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625 } |
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626 |
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627 |
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628 // Authenticate this connection |
|
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629 if (server.IsAuthenticationEnabled() && |
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630 !IsAccessGranted(server, headers)) |
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631 { |
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632 output.SendUnauthorized(ORTHANC_REALM); |
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633 return; |
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634 } |
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635 |
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636 |
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|
637 // Apply the filter, if it is installed |
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638 char remoteIp[24]; |
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639 sprintf(remoteIp, "%d.%d.%d.%d", |
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640 reinterpret_cast<const uint8_t*>(&request->remote_ip) [3], |
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641 reinterpret_cast<const uint8_t*>(&request->remote_ip) [2], |
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642 reinterpret_cast<const uint8_t*>(&request->remote_ip) [1], |
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643 reinterpret_cast<const uint8_t*>(&request->remote_ip) [0]); |
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644 |
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645 std::string username = GetAuthenticatedUsername(headers); |
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646 |
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647 const IIncomingHttpRequestFilter *filter = server.GetIncomingHttpRequestFilter(); |
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648 if (filter != NULL) |
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649 { |
|
1959
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Access to the HTTP headers in the "IncomingHttpRequestFilter()" callback
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650 if (!filter->IsAllowed(method, request->uri, remoteIp, username.c_str(), headers)) |
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651 { |
|
1963
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Use 403 Forbidden status if the incoming HTTP request is disallowed
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652 //output.SendUnauthorized(ORTHANC_REALM); |
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653 output.SendStatus(HttpStatus_403_Forbidden); |
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654 return; |
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655 } |
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656 } |
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657 |
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658 |
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659 // Extract the body of the request for PUT and POST |
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660 |
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661 // TODO Avoid unneccessary memcopy of the body |
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662 |
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663 std::string body; |
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664 if (method == HttpMethod_Post || |
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665 method == HttpMethod_Put) |
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666 { |
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667 PostDataStatus status; |
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668 |
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refactoring: IHttpHandler and HttpToolbox
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669 IHttpHandler::Arguments::const_iterator ct = headers.find("content-type"); |
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670 if (ct == headers.end()) |
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671 { |
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672 // No content-type specified. Assume no multi-part content occurs at this point. |
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673 status = ReadBody(body, connection, headers); |
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674 } |
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675 else |
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|
676 { |
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677 std::string contentType = ct->second; |
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678 if (contentType.size() >= multipartLength && |
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679 !memcmp(contentType.c_str(), multipart, multipartLength)) |
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|
680 { |
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681 status = ParseMultipartPost(body, connection, headers, contentType, server.GetChunkStore()); |
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682 } |
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683 else |
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684 { |
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685 status = ReadBody(body, connection, headers); |
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686 } |
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687 } |
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688 |
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|
689 switch (status) |
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|
690 { |
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691 case PostDataStatus_NoLength: |
|
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692 output.SendStatus(HttpStatus_411_LengthRequired); |
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693 return; |
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694 |
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695 case PostDataStatus_Failure: |
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696 output.SendStatus(HttpStatus_400_BadRequest); |
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697 return; |
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698 |
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|
699 case PostDataStatus_Pending: |
| 1521 | 700 output.AnswerEmpty(); |
|
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|
701 return; |
|
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|
702 |
|
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changeset
|
703 default: |
|
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parents:
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changeset
|
704 break; |
|
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|
705 } |
|
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upgrade to Mongoose 3.8
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|
706 } |
|
a119f9ae3640
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changeset
|
707 |
|
a119f9ae3640
upgrade to Mongoose 3.8
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parents:
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diff
changeset
|
708 |
|
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upgrade to Mongoose 3.8
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|
709 // Decompose the URI into its components |
|
a119f9ae3640
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diff
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|
710 UriComponents uri; |
|
a119f9ae3640
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parents:
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diff
changeset
|
711 try |
|
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parents:
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|
712 { |
|
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parents:
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|
713 Toolbox::SplitUriComponents(uri, request->uri); |
|
a119f9ae3640
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Sebastien Jodogne <s.jodogne@gmail.com>
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|
714 } |
|
2134
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|
715 catch (OrthancException&) |
|
1112
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|
716 { |
|
1113
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Refactoring of HttpOutput ("Content-Length" header is now always sent)
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changeset
|
717 output.SendStatus(HttpStatus_400_BadRequest); |
|
1112
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upgrade to Mongoose 3.8
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changeset
|
718 return; |
|
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upgrade to Mongoose 3.8
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changeset
|
719 } |
|
a119f9ae3640
upgrade to Mongoose 3.8
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diff
changeset
|
720 |
|
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upgrade to Mongoose 3.8
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diff
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|
721 |
|
a119f9ae3640
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parents:
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changeset
|
722 LOG(INFO) << EnumerationToString(method) << " " << Toolbox::FlattenUri(uri); |
|
1443
895ab369d63c
refactoring: OrthancHttpHandler
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
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diff
changeset
|
723 |
|
2134
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Avoid hard crash if not enough memory
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diff
changeset
|
724 bool found = false; |
|
1112
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upgrade to Mongoose 3.8
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parents:
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diff
changeset
|
725 |
|
2134
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Sebastien Jodogne <s.jodogne@gmail.com>
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changeset
|
726 if (server.HasHandler()) |
|
ddc75c6c712d
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changeset
|
727 { |
|
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Avoid hard crash if not enough memory
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diff
changeset
|
728 found = server.GetHandler().Handle(output, RequestOrigin_RestApi, remoteIp, username.c_str(), |
|
ddc75c6c712d
Avoid hard crash if not enough memory
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parents:
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diff
changeset
|
729 method, uri, headers, argumentsGET, body.c_str(), body.size()); |
|
ddc75c6c712d
Avoid hard crash if not enough memory
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changeset
|
730 } |
|
ddc75c6c712d
Avoid hard crash if not enough memory
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diff
changeset
|
731 |
|
ddc75c6c712d
Avoid hard crash if not enough memory
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diff
changeset
|
732 if (!found) |
|
ddc75c6c712d
Avoid hard crash if not enough memory
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parents:
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diff
changeset
|
733 { |
|
ddc75c6c712d
Avoid hard crash if not enough memory
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parents:
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changeset
|
734 throw OrthancException(ErrorCode_UnknownResource); |
|
ddc75c6c712d
Avoid hard crash if not enough memory
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
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diff
changeset
|
735 } |
|
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Avoid hard crash if not enough memory
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
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diff
changeset
|
736 } |
|
ddc75c6c712d
Avoid hard crash if not enough memory
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
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diff
changeset
|
737 |
|
ddc75c6c712d
Avoid hard crash if not enough memory
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
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diff
changeset
|
738 |
|
ddc75c6c712d
Avoid hard crash if not enough memory
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
2133
diff
changeset
|
739 static void ProtectedCallback(struct mg_connection *connection, |
|
ddc75c6c712d
Avoid hard crash if not enough memory
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diff
changeset
|
740 const struct mg_request_info *request) |
|
ddc75c6c712d
Avoid hard crash if not enough memory
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parents:
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changeset
|
741 { |
|
1443
895ab369d63c
refactoring: OrthancHttpHandler
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
1441
diff
changeset
|
742 try |
|
1112
a119f9ae3640
upgrade to Mongoose 3.8
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parents:
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diff
changeset
|
743 { |
|
2134
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diff
changeset
|
744 MongooseServer* server = reinterpret_cast<MongooseServer*>(request->user_data); |
|
ddc75c6c712d
Avoid hard crash if not enough memory
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parents:
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diff
changeset
|
745 |
|
ddc75c6c712d
Avoid hard crash if not enough memory
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
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diff
changeset
|
746 if (server == NULL) |
|
ddc75c6c712d
Avoid hard crash if not enough memory
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
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diff
changeset
|
747 { |
|
ddc75c6c712d
Avoid hard crash if not enough memory
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changeset
|
748 MongooseOutputStream stream(connection); |
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749 HttpOutput output(stream, false /* assume no keep-alive */); |
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|
750 output.SendStatus(HttpStatus_500_InternalServerError); |
|
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|
751 return; |
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752 } |
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|
753 |
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|
754 MongooseOutputStream stream(connection); |
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|
755 HttpOutput output(stream, server->IsKeepAliveEnabled()); |
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756 HttpMethod method = HttpMethod_Get; |
| 1569 | 757 |
| 758 try | |
| 1570 | 759 { |
|
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|
760 try |
|
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|
761 { |
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|
762 InternalCallback(output, method, *server, connection, request); |
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763 } |
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764 catch (OrthancException&) |
|
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|
765 { |
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|
766 throw; // Pass the exception to the main handler below |
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767 } |
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768 // Now convert native exceptions as OrthancException |
|
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769 catch (boost::bad_lexical_cast&) |
| 1570 | 770 { |
|
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771 LOG(ERROR) << "Syntax error in some user-supplied data"; |
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772 throw OrthancException(ErrorCode_BadParameterType); |
|
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|
773 } |
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774 catch (std::runtime_error&) |
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|
775 { |
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776 // Presumably an error while parsing the JSON body |
|
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|
777 throw OrthancException(ErrorCode_BadRequest); |
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778 } |
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779 catch (std::bad_alloc&) |
|
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|
780 { |
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|
781 LOG(ERROR) << "The server hosting Orthanc is running out of memory"; |
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|
782 throw OrthancException(ErrorCode_NotEnoughMemory); |
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783 } |
|
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|
784 catch (...) |
|
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|
785 { |
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786 LOG(ERROR) << "An unhandled exception was generated inside the HTTP server"; |
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787 throw OrthancException(ErrorCode_InternalError); |
| 1570 | 788 } |
| 789 } | |
|
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790 catch (OrthancException& e) |
| 1570 | 791 { |
|
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792 assert(server != NULL); |
| 1569 | 793 |
|
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794 // Using this candidate handler results in an exception |
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795 try |
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|
796 { |
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|
797 if (server->GetExceptionFormatter() == NULL) |
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|
798 { |
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|
799 LOG(ERROR) << "Exception in the HTTP handler: " << e.What(); |
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|
800 output.SendStatus(e.GetHttpStatus()); |
|
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|
801 } |
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|
802 else |
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|
803 { |
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|
804 server->GetExceptionFormatter()->Format(output, e, method, request->uri); |
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805 } |
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|
806 } |
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|
807 catch (OrthancException&) |
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|
808 { |
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809 // An exception here reflects the fact that the status code |
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810 // was already set by the HTTP handler. |
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811 } |
| 1570 | 812 } |
|
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813 } |
|
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814 catch (...) |
|
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815 { |
|
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816 // We should never arrive at this point, where it is even impossible to send an answer |
|
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817 LOG(ERROR) << "Catastrophic error inside the HTTP server, giving up"; |
|
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818 } |
|
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819 } |
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|
820 |
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821 |
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|
822 #if MONGOOSE_USE_CALLBACKS == 0 |
| 0 | 823 static void* Callback(enum mg_event event, |
| 824 struct mg_connection *connection, | |
| 825 const struct mg_request_info *request) | |
| 826 { | |
| 827 if (event == MG_NEW_REQUEST) | |
| 828 { | |
|
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|
829 ProtectedCallback(connection, request); |
| 0 | 830 |
| 831 // Mark as processed | |
| 832 return (void*) ""; | |
|
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833 } |
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|
834 else |
| 0 | 835 { |
| 836 return NULL; | |
| 837 } | |
| 838 } | |
| 839 | |
|
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840 #elif MONGOOSE_USE_CALLBACKS == 1 |
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841 static int Callback(struct mg_connection *connection) |
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|
842 { |
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843 struct mg_request_info *request = mg_get_request_info(connection); |
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844 |
|
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|
845 ProtectedCallback(connection, request); |
|
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846 |
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|
847 return 1; // Do not let Mongoose handle the request by itself |
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848 } |
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849 |
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|
850 #else |
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851 #error Please set MONGOOSE_USE_CALLBACKS |
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|
852 #endif |
|
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|
853 |
|
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|
854 |
|
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|
855 |
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|
856 |
| 0 | 857 |
| 858 bool MongooseServer::IsRunning() const | |
| 859 { | |
| 860 return (pimpl_->context_ != NULL); | |
| 861 } | |
| 862 | |
| 863 | |
| 864 MongooseServer::MongooseServer() : pimpl_(new PImpl) | |
| 865 { | |
| 866 pimpl_->context_ = NULL; | |
|
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|
867 handler_ = NULL; |
|
34
96e57b863dd9
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|
868 remoteAllowed_ = false; |
|
25
dd1489098265
basic http authentication
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|
869 authentication_ = false; |
| 23 | 870 ssl_ = false; |
| 0 | 871 port_ = 8000; |
| 417 | 872 filter_ = NULL; |
|
1115
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|
873 keepAlive_ = false; |
| 1517 | 874 httpCompression_ = true; |
|
1645
1558b3226b18
IHttpExceptionFormatter
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|
875 exceptionFormatter_ = NULL; |
|
748
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|
876 |
|
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|
877 #if ORTHANC_SSL_ENABLED == 1 |
| 749 | 878 // Check for the Heartbleed exploit |
|
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|
879 // https://en.wikipedia.org/wiki/OpenSSL#Heartbleed_bug |
|
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|
880 if (OPENSSL_VERSION_NUMBER < 0x1000107fL /* openssl-1.0.1g */ && |
|
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diff
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|
881 OPENSSL_VERSION_NUMBER >= 0x1000100fL /* openssl-1.0.1 */) |
|
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|
882 { |
| 749 | 883 LOG(WARNING) << "This version of OpenSSL is vulnerable to the Heartbleed exploit"; |
|
748
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|
884 } |
|
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|
885 #endif |
| 0 | 886 } |
| 887 | |
| 888 | |
| 889 MongooseServer::~MongooseServer() | |
| 890 { | |
| 891 Stop(); | |
| 892 } | |
| 893 | |
| 894 | |
| 128 | 895 void MongooseServer::SetPortNumber(uint16_t port) |
| 0 | 896 { |
| 897 Stop(); | |
| 898 port_ = port; | |
| 899 } | |
| 900 | |
| 901 void MongooseServer::Start() | |
| 902 { | |
| 903 if (!IsRunning()) | |
| 904 { | |
| 905 std::string port = boost::lexical_cast<std::string>(port_); | |
| 906 | |
| 23 | 907 if (ssl_) |
| 908 { | |
| 909 port += "s"; | |
| 910 } | |
| 911 | |
| 0 | 912 const char *options[] = { |
|
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diff
changeset
|
913 // Set the TCP port for the HTTP server |
| 0 | 914 "listening_ports", port.c_str(), |
|
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|
915 |
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916 // Optimization reported by Chris Hafey |
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917 // https://groups.google.com/d/msg/orthanc-users/CKueKX0pJ9E/_UCbl8T-VjIJ |
|
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918 "enable_keep_alive", (keepAlive_ ? "yes" : "no"), |
|
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919 |
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920 // Set the SSL certificate, if any. This must be the last option. |
| 23 | 921 ssl_ ? "ssl_certificate" : NULL, |
| 922 certificate_.c_str(), | |
| 0 | 923 NULL |
| 924 }; | |
| 925 | |
|
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926 #if MONGOOSE_USE_CALLBACKS == 0 |
| 0 | 927 pimpl_->context_ = mg_start(&Callback, this, options); |
|
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928 |
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929 #elif MONGOOSE_USE_CALLBACKS == 1 |
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930 struct mg_callbacks callbacks; |
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931 memset(&callbacks, 0, sizeof(callbacks)); |
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932 callbacks.begin_request = Callback; |
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933 pimpl_->context_ = mg_start(&callbacks, this, options); |
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934 |
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935 #else |
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936 #error Please set MONGOOSE_USE_CALLBACKS |
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937 #endif |
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938 |
| 0 | 939 if (!pimpl_->context_) |
| 940 { | |
|
1582
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941 throw OrthancException(ErrorCode_HttpPortInUse); |
| 0 | 942 } |
| 943 } | |
| 944 } | |
| 945 | |
| 946 void MongooseServer::Stop() | |
| 947 { | |
| 948 if (IsRunning()) | |
| 949 { | |
| 950 mg_stop(pimpl_->context_); | |
| 951 pimpl_->context_ = NULL; | |
| 952 } | |
| 953 } | |
| 954 | |
| 955 | |
|
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956 void MongooseServer::ClearUsers() |
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957 { |
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958 Stop(); |
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959 registeredUsers_.clear(); |
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960 } |
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961 |
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962 |
| 23 | 963 void MongooseServer::RegisterUser(const char* username, |
| 964 const char* password) | |
| 965 { | |
| 966 Stop(); | |
| 24 | 967 |
| 968 std::string tag = std::string(username) + ":" + std::string(password); | |
|
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969 std::string encoded; |
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970 Toolbox::EncodeBase64(encoded, tag); |
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971 registeredUsers_.insert(encoded); |
| 23 | 972 } |
| 973 | |
| 974 void MongooseServer::SetSslEnabled(bool enabled) | |
| 975 { | |
| 976 Stop(); | |
| 977 | |
| 59 | 978 #if ORTHANC_SSL_ENABLED == 0 |
| 23 | 979 if (enabled) |
| 980 { | |
|
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981 throw OrthancException(ErrorCode_SslDisabled); |
| 23 | 982 } |
| 983 else | |
| 984 { | |
| 985 ssl_ = false; | |
| 986 } | |
| 987 #else | |
| 988 ssl_ = enabled; | |
| 989 #endif | |
| 990 } | |
| 991 | |
|
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992 |
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993 void MongooseServer::SetKeepAliveEnabled(bool enabled) |
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994 { |
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995 Stop(); |
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996 keepAlive_ = enabled; |
|
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997 LOG(INFO) << "HTTP keep alive is " << (enabled ? "enabled" : "disabled"); |
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998 } |
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999 |
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1000 |
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1001 void MongooseServer::SetAuthenticationEnabled(bool enabled) |
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1002 { |
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1003 Stop(); |
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1004 authentication_ = enabled; |
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1005 } |
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1006 |
| 23 | 1007 void MongooseServer::SetSslCertificate(const char* path) |
| 1008 { | |
| 1009 Stop(); | |
| 1010 certificate_ = path; | |
| 1011 } | |
|
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1012 |
|
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1013 void MongooseServer::SetRemoteAccessAllowed(bool allowed) |
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1014 { |
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1015 Stop(); |
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1016 remoteAllowed_ = allowed; |
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1017 } |
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1018 |
| 1517 | 1019 void MongooseServer::SetHttpCompressionEnabled(bool enabled) |
| 1020 { | |
| 1021 Stop(); | |
| 1022 httpCompression_ = enabled; | |
| 1518 | 1023 LOG(WARNING) << "HTTP compression is " << (enabled ? "enabled" : "disabled"); |
| 1517 | 1024 } |
|
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1025 |
|
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1026 void MongooseServer::SetIncomingHttpRequestFilter(IIncomingHttpRequestFilter& filter) |
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1027 { |
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1028 Stop(); |
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1029 filter_ = &filter; |
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1030 } |
|
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1031 |
|
1645
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1032 |
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1033 void MongooseServer::SetHttpExceptionFormatter(IHttpExceptionFormatter& formatter) |
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1034 { |
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1035 Stop(); |
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1036 exceptionFormatter_ = &formatter; |
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1037 } |
|
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1038 |
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1039 |
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1040 bool MongooseServer::IsValidBasicHttpAuthentication(const std::string& basic) const |
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1041 { |
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1042 return registeredUsers_.find(basic) != registeredUsers_.end(); |
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1043 } |
|
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1044 |
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1045 |
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1046 void MongooseServer::Register(IHttpHandler& handler) |
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1047 { |
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1048 Stop(); |
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1049 handler_ = &handler; |
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1050 } |
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1051 |
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1052 |
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1053 IHttpHandler& MongooseServer::GetHandler() const |
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1054 { |
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1055 if (handler_ == NULL) |
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1056 { |
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1057 throw OrthancException(ErrorCode_InternalError); |
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1058 } |
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1059 |
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1060 return *handler_; |
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1061 } |
| 0 | 1062 } |