Mercurial > hg > orthanc
annotate Core/Toolbox.cpp @ 336:3c291753231f
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| author | Sebastien Jodogne <s.jodogne@gmail.com> |
|---|---|
| date | Sun, 13 Jan 2013 21:50:11 +0100 |
| parents | c9b3ba0fd140 |
| children | 26218c4de7e0 |
| rev | line source |
|---|---|
| 0 | 1 /** |
| 59 | 2 * Orthanc - A Lightweight, RESTful DICOM Store |
| 0 | 3 * Copyright (C) 2012 Medical Physics Department, CHU of Liege, |
| 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 #include "Toolbox.h" | |
| 34 | |
| 59 | 35 #include "OrthancException.h" |
| 0 | 36 |
| 37 #include <string.h> | |
| 38 #include <boost/filesystem.hpp> | |
| 39 #include <boost/filesystem/fstream.hpp> | |
|
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40 #include <boost/date_time/posix_time/posix_time.hpp> |
| 0 | 41 #include <algorithm> |
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42 #include <ctype.h> |
| 0 | 43 |
| 44 #if defined(_WIN32) | |
| 45 #include <windows.h> | |
| 46 #endif | |
| 47 | |
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48 #if defined(__APPLE__) && defined(__MACH__) |
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49 #include <mach-o/dyld.h> /* _NSGetExecutablePath */ |
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50 #include <limits.h> /* PATH_MAX */ |
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51 #endif |
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52 |
| 0 | 53 #if defined(__linux) |
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54 #include <limits.h> /* PATH_MAX */ |
| 10 | 55 #include <signal.h> |
| 0 | 56 #include <unistd.h> |
| 57 #endif | |
| 58 | |
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59 #if BOOST_HAS_LOCALE == 1 |
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60 #include <boost/locale.hpp> |
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61 #else |
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62 #include <iconv.h> |
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63 #endif |
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64 |
| 22 | 65 #include "../Resources/md5/md5.h" |
| 24 | 66 #include "../Resources/base64/base64.h" |
| 177 | 67 #include "../Resources/sha1/sha1.h" |
| 0 | 68 |
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69 |
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70 #if BOOST_HAS_LOCALE == 0 |
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71 namespace |
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72 { |
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73 class IconvRabi |
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74 { |
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75 private: |
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76 iconv_t context_; |
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77 |
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78 public: |
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79 IconvRabi(const char* tocode, const char* fromcode) |
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80 { |
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81 context_ = iconv_open(tocode, fromcode); |
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82 if (!context_) |
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83 { |
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84 throw Orthanc::OrthancException("Unknown code page"); |
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85 } |
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86 } |
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87 |
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88 ~IconvRabi() |
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89 { |
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90 iconv_close(context_); |
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91 } |
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92 |
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93 std::string Convert(const std::string& source) |
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94 { |
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95 if (source.size() == 0) |
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96 { |
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97 return ""; |
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98 } |
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99 |
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100 std::string result; |
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101 char* sourcePos = const_cast<char*>(&source[0]); |
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102 size_t sourceLeft = source.size(); |
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103 |
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104 std::vector<char> storage(source.size() + 10); |
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105 |
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106 while (sourceLeft > 0) |
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107 { |
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108 char* tmp = &storage[0]; |
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109 size_t outputLeft = storage.size(); |
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110 size_t err = iconv(context_, &sourcePos, &sourceLeft, &tmp, &outputLeft); |
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111 if (err < 0) |
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112 { |
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113 throw Orthanc::OrthancException("Bad character in sequence"); |
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114 } |
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115 |
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116 size_t count = storage.size() - outputLeft; |
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117 result += std::string(&storage[0], count); |
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118 } |
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119 |
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120 return result; |
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121 } |
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122 }; |
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123 } |
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124 #endif |
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125 |
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126 |
| 59 | 127 namespace Orthanc |
| 0 | 128 { |
| 129 static bool finish; | |
| 130 | |
| 10 | 131 #if defined(_WIN32) |
| 22 | 132 static BOOL WINAPI ConsoleControlHandler(DWORD dwCtrlType) |
| 133 { | |
| 134 // http://msdn.microsoft.com/en-us/library/ms683242(v=vs.85).aspx | |
| 135 finish = true; | |
| 136 return true; | |
| 137 } | |
| 138 #else | |
| 0 | 139 static void SignalHandler(int) |
| 140 { | |
| 141 finish = true; | |
| 142 } | |
| 22 | 143 #endif |
| 0 | 144 |
| 145 void Toolbox::Sleep(uint32_t seconds) | |
| 146 { | |
| 147 #if defined(_WIN32) | |
| 148 ::Sleep(static_cast<DWORD>(seconds) * static_cast<DWORD>(1000)); | |
| 149 #elif defined(__linux) | |
| 150 usleep(static_cast<uint64_t>(seconds) * static_cast<uint64_t>(1000000)); | |
| 151 #else | |
| 152 #error Support your platform here | |
| 153 #endif | |
| 154 } | |
| 155 | |
| 156 void Toolbox::USleep(uint64_t microSeconds) | |
| 157 { | |
| 158 #if defined(_WIN32) | |
| 8 | 159 ::Sleep(static_cast<DWORD>(microSeconds / static_cast<uint64_t>(1000))); |
| 0 | 160 #elif defined(__linux) |
| 161 usleep(microSeconds); | |
| 162 #else | |
| 163 #error Support your platform here | |
| 164 #endif | |
| 165 } | |
| 166 | |
| 167 | |
| 168 void Toolbox::ServerBarrier() | |
| 169 { | |
| 10 | 170 #if defined(_WIN32) |
| 171 SetConsoleCtrlHandler(ConsoleControlHandler, true); | |
| 172 #else | |
| 0 | 173 signal(SIGINT, SignalHandler); |
| 174 signal(SIGQUIT, SignalHandler); | |
| 175 #endif | |
| 176 | |
| 177 finish = false; | |
| 178 while (!finish) | |
| 179 { | |
| 180 USleep(100000); | |
| 181 } | |
| 182 | |
| 10 | 183 #if defined(_WIN32) |
| 184 SetConsoleCtrlHandler(ConsoleControlHandler, false); | |
| 185 #else | |
| 0 | 186 signal(SIGINT, NULL); |
| 187 signal(SIGQUIT, NULL); | |
| 188 #endif | |
| 189 } | |
| 190 | |
| 191 | |
| 192 | |
| 193 void Toolbox::ToUpperCase(std::string& s) | |
| 194 { | |
| 195 std::transform(s.begin(), s.end(), s.begin(), toupper); | |
| 196 } | |
| 197 | |
| 198 | |
| 199 void Toolbox::ToLowerCase(std::string& s) | |
| 200 { | |
| 201 std::transform(s.begin(), s.end(), s.begin(), tolower); | |
| 202 } | |
| 203 | |
| 204 | |
| 205 | |
| 206 void Toolbox::ReadFile(std::string& content, | |
| 207 const std::string& path) | |
| 208 { | |
| 209 boost::filesystem::ifstream f; | |
| 210 f.open(path, std::ifstream::in | std::ios::binary); | |
| 211 if (!f.good()) | |
| 212 { | |
| 59 | 213 throw OrthancException("Unable to open a file"); |
| 0 | 214 } |
| 215 | |
| 216 // http://www.cplusplus.com/reference/iostream/istream/tellg/ | |
| 217 f.seekg(0, std::ios::end); | |
| 218 std::streamsize size = f.tellg(); | |
| 219 f.seekg(0, std::ios::beg); | |
| 220 | |
| 221 content.resize(size); | |
| 222 if (size != 0) | |
| 223 { | |
| 224 f.read(reinterpret_cast<char*>(&content[0]), size); | |
| 225 } | |
| 226 | |
| 227 f.close(); | |
| 228 } | |
| 229 | |
| 230 | |
| 231 void Toolbox::RemoveFile(const std::string& path) | |
| 232 { | |
| 233 if (boost::filesystem::exists(path)) | |
| 234 { | |
| 235 if (boost::filesystem::is_regular_file(path)) | |
| 236 boost::filesystem::remove(path); | |
| 237 else | |
| 59 | 238 throw OrthancException("The path is not a regular file: " + path); |
| 0 | 239 } |
| 240 } | |
| 241 | |
| 242 | |
| 243 | |
| 244 void Toolbox::SplitUriComponents(UriComponents& components, | |
| 245 const std::string& uri) | |
| 246 { | |
| 247 static const char URI_SEPARATOR = '/'; | |
| 248 | |
| 249 components.clear(); | |
| 250 | |
| 251 if (uri.size() == 0 || | |
| 252 uri[0] != URI_SEPARATOR) | |
| 253 { | |
| 59 | 254 throw OrthancException(ErrorCode_UriSyntax); |
| 0 | 255 } |
| 256 | |
| 257 // Count the number of slashes in the URI to make an assumption | |
| 258 // about the number of components in the URI | |
| 259 unsigned int estimatedSize = 0; | |
| 260 for (unsigned int i = 0; i < uri.size(); i++) | |
| 261 { | |
| 262 if (uri[i] == URI_SEPARATOR) | |
| 263 estimatedSize++; | |
| 264 } | |
| 265 | |
| 266 components.reserve(estimatedSize - 1); | |
| 267 | |
| 268 unsigned int start = 1; | |
| 269 unsigned int end = 1; | |
| 270 while (end < uri.size()) | |
| 271 { | |
| 272 // This is the loop invariant | |
| 273 assert(uri[start - 1] == '/' && (end >= start)); | |
| 274 | |
| 275 if (uri[end] == '/') | |
| 276 { | |
| 277 components.push_back(std::string(&uri[start], end - start)); | |
| 278 end++; | |
| 279 start = end; | |
| 280 } | |
| 281 else | |
| 282 { | |
| 283 end++; | |
| 284 } | |
| 285 } | |
| 286 | |
| 287 if (start < uri.size()) | |
| 288 { | |
| 289 components.push_back(std::string(&uri[start], end - start)); | |
| 290 } | |
| 207 | 291 |
| 292 for (size_t i = 0; i < components.size(); i++) | |
| 293 { | |
| 294 if (components[i].size() == 0) | |
| 295 { | |
| 296 // Empty component, as in: "/coucou//e" | |
| 297 throw OrthancException(ErrorCode_UriSyntax); | |
| 298 } | |
| 299 } | |
| 0 | 300 } |
| 301 | |
| 302 | |
| 303 bool Toolbox::IsChildUri(const UriComponents& baseUri, | |
| 304 const UriComponents& testedUri) | |
| 305 { | |
| 306 if (testedUri.size() < baseUri.size()) | |
| 307 { | |
| 308 return false; | |
| 309 } | |
| 310 | |
| 311 for (size_t i = 0; i < baseUri.size(); i++) | |
| 312 { | |
| 313 if (baseUri[i] != testedUri[i]) | |
| 314 return false; | |
| 315 } | |
| 316 | |
| 317 return true; | |
| 318 } | |
| 319 | |
| 320 | |
| 321 std::string Toolbox::AutodetectMimeType(const std::string& path) | |
| 322 { | |
| 323 std::string contentType; | |
| 324 size_t lastDot = path.rfind('.'); | |
| 325 size_t lastSlash = path.rfind('/'); | |
| 326 | |
| 327 if (lastDot == std::string::npos || | |
| 328 (lastSlash != std::string::npos && lastDot < lastSlash)) | |
| 329 { | |
| 330 // No trailing dot, unable to detect the content type | |
| 331 } | |
| 332 else | |
| 333 { | |
| 334 const char* extension = &path[lastDot + 1]; | |
| 335 | |
| 336 // http://en.wikipedia.org/wiki/Mime_types | |
| 337 // Text types | |
| 338 if (!strcmp(extension, "txt")) | |
| 339 contentType = "text/plain"; | |
| 340 else if (!strcmp(extension, "html")) | |
| 341 contentType = "text/html"; | |
| 342 else if (!strcmp(extension, "xml")) | |
| 343 contentType = "text/xml"; | |
| 344 else if (!strcmp(extension, "css")) | |
| 345 contentType = "text/css"; | |
| 346 | |
| 347 // Application types | |
| 348 else if (!strcmp(extension, "js")) | |
| 349 contentType = "application/javascript"; | |
| 350 else if (!strcmp(extension, "json")) | |
| 351 contentType = "application/json"; | |
| 352 else if (!strcmp(extension, "pdf")) | |
| 353 contentType = "application/pdf"; | |
| 354 | |
| 355 // Images types | |
| 356 else if (!strcmp(extension, "jpg") || !strcmp(extension, "jpeg")) | |
| 357 contentType = "image/jpeg"; | |
| 358 else if (!strcmp(extension, "gif")) | |
| 359 contentType = "image/gif"; | |
| 360 else if (!strcmp(extension, "png")) | |
| 361 contentType = "image/png"; | |
| 362 } | |
| 363 | |
| 364 return contentType; | |
| 365 } | |
| 366 | |
| 367 | |
| 368 std::string Toolbox::FlattenUri(const UriComponents& components, | |
| 369 size_t fromLevel) | |
| 370 { | |
| 371 if (components.size() <= fromLevel) | |
| 372 { | |
| 373 return "/"; | |
| 374 } | |
| 375 else | |
| 376 { | |
| 377 std::string r; | |
| 378 | |
| 379 for (size_t i = fromLevel; i < components.size(); i++) | |
| 380 { | |
| 381 r += "/" + components[i]; | |
| 382 } | |
| 383 | |
| 384 return r; | |
| 385 } | |
| 386 } | |
| 387 | |
| 388 | |
| 389 | |
| 390 uint64_t Toolbox::GetFileSize(const std::string& path) | |
| 391 { | |
| 392 try | |
| 393 { | |
| 394 return static_cast<uint64_t>(boost::filesystem::file_size(path)); | |
| 395 } | |
| 396 catch (boost::filesystem::filesystem_error) | |
| 397 { | |
| 59 | 398 throw OrthancException(ErrorCode_InexistentFile); |
| 0 | 399 } |
| 400 } | |
| 22 | 401 |
| 402 | |
| 403 static char GetHexadecimalCharacter(uint8_t value) | |
| 404 { | |
| 405 assert(value < 16); | |
| 406 | |
| 407 if (value < 10) | |
| 408 return value + '0'; | |
| 409 else | |
| 410 return (value - 10) + 'a'; | |
| 411 } | |
| 412 | |
| 23 | 413 |
| 22 | 414 void Toolbox::ComputeMD5(std::string& result, |
| 415 const std::string& data) | |
| 416 { | |
| 417 md5_state_s state; | |
| 418 md5_init(&state); | |
| 419 | |
| 420 if (data.size() > 0) | |
| 421 { | |
| 422 md5_append(&state, reinterpret_cast<const md5_byte_t*>(&data[0]), | |
| 423 static_cast<int>(data.size())); | |
| 424 } | |
| 425 | |
| 426 md5_byte_t actualHash[16]; | |
| 427 md5_finish(&state, actualHash); | |
| 428 | |
| 429 result.resize(32); | |
| 430 for (unsigned int i = 0; i < 16; i++) | |
| 431 { | |
| 432 result[2 * i] = GetHexadecimalCharacter(actualHash[i] / 16); | |
| 433 result[2 * i + 1] = GetHexadecimalCharacter(actualHash[i] % 16); | |
| 434 } | |
| 435 } | |
| 24 | 436 |
| 437 | |
| 438 std::string Toolbox::EncodeBase64(const std::string& data) | |
| 439 { | |
| 86 | 440 return base64_encode(data); |
| 24 | 441 } |
| 442 | |
|
87
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443 |
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444 #if defined(_WIN32) |
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445 std::string Toolbox::GetPathToExecutable() |
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446 { |
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447 // Yes, this is ugly, but there is no simple way to get the |
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448 // required buffer size, so we use a big constant |
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449 std::vector<char> buffer(32768); |
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450 /*int bytes =*/ GetModuleFileNameA(NULL, &buffer[0], static_cast<DWORD>(buffer.size() - 1)); |
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451 return std::string(&buffer[0]); |
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452 } |
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453 |
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454 #elif defined(__linux) |
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455 std::string Toolbox::GetPathToExecutable() |
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456 { |
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457 std::vector<char> buffer(PATH_MAX + 1); |
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458 ssize_t bytes = readlink("/proc/self/exe", &buffer[0], buffer.size() - 1); |
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459 if (bytes == 0) |
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460 { |
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461 throw OrthancException("Unable to get the path to the executable"); |
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462 } |
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463 |
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464 return std::string(&buffer[0]); |
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465 } |
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466 |
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467 #elif defined(__APPLE__) && defined(__MACH__) |
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468 std::string Toolbox::GetPathToExecutable() |
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469 { |
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470 char pathbuf[PATH_MAX + 1]; |
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471 unsigned int bufsize = static_cast<int>(sizeof(pathbuf)); |
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472 |
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473 _NSGetExecutablePath( pathbuf, &bufsize); |
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474 |
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475 return std::string(pathbuf); |
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476 } |
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477 |
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478 #else |
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479 #error Support your platform here |
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480 #endif |
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481 |
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482 |
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483 std::string Toolbox::GetDirectoryOfExecutable() |
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484 { |
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485 boost::filesystem::path p(GetPathToExecutable()); |
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486 return p.parent_path().string(); |
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487 } |
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488 |
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489 |
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490 std::string Toolbox::ConvertToUtf8(const std::string& source, |
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491 const char* fromEncoding) |
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492 { |
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493 #if BOOST_HAS_LOCALE == 1 |
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494 try |
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495 { |
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496 return boost::locale::conv::to_utf<char>(source, fromEncoding); |
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497 } |
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498 catch (std::runtime_error&) |
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499 { |
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500 // Bad input string or bad encoding |
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501 return ConvertToAscii(source); |
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502 } |
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503 #else |
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504 IconvRabi iconv("UTF-8", fromEncoding); |
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505 try |
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506 { |
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507 return iconv.Convert(source); |
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508 } |
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509 catch (OrthancException) |
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510 { |
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511 return ConvertToAscii(source); |
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512 } |
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513 #endif |
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514 } |
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515 |
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516 |
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517 std::string Toolbox::ConvertToAscii(const std::string& source) |
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518 { |
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519 std::string result; |
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520 |
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521 result.reserve(source.size()); |
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522 for (size_t i = 0; i < source.size(); i++) |
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523 { |
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524 if (source[i] < 128 && source[i] >= 0 && !iscntrl(source[i])) |
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525 { |
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526 result.push_back(source[i]); |
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527 } |
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528 } |
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529 |
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530 return result; |
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531 } |
| 177 | 532 |
| 533 void Toolbox::ComputeSHA1(std::string& result, | |
| 534 const std::string& data) | |
| 535 { | |
| 536 SHA1 sha1; | |
| 537 if (data.size() > 0) | |
| 538 { | |
| 539 sha1.Input(&data[0], data.size()); | |
| 540 } | |
| 541 | |
| 542 unsigned digest[5]; | |
| 543 | |
| 544 // Sanity check for the memory layout: A SHA-1 digest is 160 bits wide | |
| 545 assert(sizeof(unsigned) == 4 && sizeof(digest) == (160 / 8)); | |
| 546 | |
| 547 if (sha1.Result(digest)) | |
| 548 { | |
| 549 result.resize(8 * 5 + 4); | |
| 550 sprintf(&result[0], "%08x-%08x-%08x-%08x-%08x", | |
| 551 digest[0], | |
| 552 digest[1], | |
| 553 digest[2], | |
| 554 digest[3], | |
| 555 digest[4]); | |
| 556 } | |
| 557 else | |
| 558 { | |
| 559 throw OrthancException(ErrorCode_InternalError); | |
| 560 } | |
| 561 } | |
| 562 | |
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563 std::string Toolbox::GetNowIsoString() |
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564 { |
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565 boost::posix_time::ptime now = boost::posix_time::second_clock::local_time(); |
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566 return boost::posix_time::to_iso_string(now); |
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567 } |
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568 |
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569 std::string Toolbox::StripSpaces(const std::string& source) |
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570 { |
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571 size_t first = 0; |
| 177 | 572 |
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573 while (first < source.length() && |
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574 isspace(source[first])) |
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575 { |
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576 first++; |
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577 } |
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578 |
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579 if (first == source.length()) |
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580 { |
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581 // String containing only spaces |
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582 return ""; |
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583 } |
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584 |
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585 size_t last = source.length(); |
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586 while (last > first && |
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587 isspace(source[last - 1])) |
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588 { |
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589 last--; |
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590 } |
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591 |
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592 assert(first <= last); |
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593 return source.substr(first, last - first); |
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594 } |
| 336 | 595 |
| 596 | |
| 597 static uint8_t Hex2Dec(char c) | |
| 598 { | |
| 599 return ((c >= '0' && c <= '9') ? c - '0' : | |
| 600 ((c >= 'a' && c <= 'f') ? c - 'a' + 10 : c - 'A' + 10)); | |
| 601 } | |
| 602 | |
| 603 void Toolbox::UrlDecode(std::string& s) | |
| 604 { | |
| 605 // http://en.wikipedia.org/wiki/Percent-encoding | |
| 606 // http://www.w3schools.com/tags/ref_urlencode.asp | |
| 607 // http://stackoverflow.com/questions/154536/encode-decode-urls-in-c | |
| 608 | |
| 609 if (s.size() == 0) | |
| 610 { | |
| 611 return; | |
| 612 } | |
| 613 | |
| 614 size_t source = 0; | |
| 615 size_t target = 0; | |
| 616 | |
| 617 while (source < s.size()) | |
| 618 { | |
| 619 if (s[source] == '%' && | |
| 620 source + 2 < s.size() && | |
| 621 isalnum(s[source + 1]) && | |
| 622 isalnum(s[source + 2])) | |
| 623 { | |
| 624 s[target] = (Hex2Dec(s[source + 1]) << 4) | Hex2Dec(s[source + 2]); | |
| 625 source += 3; | |
| 626 target += 1; | |
| 627 } | |
| 628 else | |
| 629 { | |
| 630 if (s[source] == '+') | |
| 631 s[target] = ' '; | |
| 632 else | |
| 633 s[target] = s[source]; | |
| 634 | |
| 635 source++; | |
| 636 target++; | |
| 637 } | |
| 638 } | |
| 639 | |
| 640 s.resize(target); | |
| 641 } | |
| 0 | 642 } |