Mercurial > hg > orthanc
annotate Core/Toolbox.cpp @ 477:6f8ae46ed90e
moves
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Mon, 15 Jul 2013 21:27:49 +0200 |
parents | a9693dc7089c |
children | 8c3573d28868 |
rev | line source |
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0 | 1 /** |
59 | 2 * Orthanc - A Lightweight, RESTful DICOM Store |
398 | 3 * Copyright (C) 2012-2013 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 #include "Toolbox.h" | |
34 | |
59 | 35 #include "OrthancException.h" |
0 | 36 |
453 | 37 #include <stdint.h> |
0 | 38 #include <string.h> |
39 #include <boost/filesystem.hpp> | |
40 #include <boost/filesystem/fstream.hpp> | |
187
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41 #include <boost/date_time/posix_time/posix_time.hpp> |
0 | 42 #include <algorithm> |
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43 #include <ctype.h> |
0 | 44 |
45 #if defined(_WIN32) | |
46 #include <windows.h> | |
47 #endif | |
48 | |
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49 #if defined(__APPLE__) && defined(__MACH__) |
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50 #include <mach-o/dyld.h> /* _NSGetExecutablePath */ |
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51 #include <limits.h> /* PATH_MAX */ |
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52 #endif |
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53 |
0 | 54 #if defined(__linux) |
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55 #include <limits.h> /* PATH_MAX */ |
10 | 56 #include <signal.h> |
0 | 57 #include <unistd.h> |
58 #endif | |
59 | |
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60 #if BOOST_HAS_LOCALE == 1 |
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61 #include <boost/locale.hpp> |
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62 #else |
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63 #include <iconv.h> |
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64 #endif |
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65 |
22 | 66 #include "../Resources/md5/md5.h" |
24 | 67 #include "../Resources/base64/base64.h" |
177 | 68 #include "../Resources/sha1/sha1.h" |
0 | 69 |
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70 |
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71 #if BOOST_HAS_LOCALE == 0 |
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72 namespace |
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73 { |
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74 class IconvRabi |
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75 { |
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76 private: |
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77 iconv_t context_; |
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78 |
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79 public: |
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80 IconvRabi(const char* tocode, const char* fromcode) |
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81 { |
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82 context_ = iconv_open(tocode, fromcode); |
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83 if (!context_) |
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84 { |
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85 throw Orthanc::OrthancException("Unknown code page"); |
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86 } |
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87 } |
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88 |
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89 ~IconvRabi() |
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90 { |
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91 iconv_close(context_); |
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92 } |
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93 |
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94 std::string Convert(const std::string& source) |
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95 { |
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96 if (source.size() == 0) |
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97 { |
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98 return ""; |
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99 } |
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100 |
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101 std::string result; |
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102 char* sourcePos = const_cast<char*>(&source[0]); |
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103 size_t sourceLeft = source.size(); |
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104 |
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105 std::vector<char> storage(source.size() + 10); |
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106 |
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107 while (sourceLeft > 0) |
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108 { |
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109 char* tmp = &storage[0]; |
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110 size_t outputLeft = storage.size(); |
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111 size_t err = iconv(context_, &sourcePos, &sourceLeft, &tmp, &outputLeft); |
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112 if (err < 0) |
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113 { |
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114 throw Orthanc::OrthancException("Bad character in sequence"); |
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115 } |
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116 |
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117 size_t count = storage.size() - outputLeft; |
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118 result += std::string(&storage[0], count); |
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119 } |
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120 |
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121 return result; |
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122 } |
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123 }; |
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124 } |
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125 #endif |
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126 |
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127 |
59 | 128 namespace Orthanc |
0 | 129 { |
130 static bool finish; | |
131 | |
10 | 132 #if defined(_WIN32) |
22 | 133 static BOOL WINAPI ConsoleControlHandler(DWORD dwCtrlType) |
134 { | |
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135 // http://msdn.microsoft.com/en-us/library/ms683242(v=vs.85).aspx |
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136 finish = true; |
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137 return true; |
22 | 138 } |
139 #else | |
0 | 140 static void SignalHandler(int) |
141 { | |
142 finish = true; | |
143 } | |
22 | 144 #endif |
0 | 145 |
146 void Toolbox::Sleep(uint32_t seconds) | |
147 { | |
148 #if defined(_WIN32) | |
149 ::Sleep(static_cast<DWORD>(seconds) * static_cast<DWORD>(1000)); | |
150 #elif defined(__linux) | |
151 usleep(static_cast<uint64_t>(seconds) * static_cast<uint64_t>(1000000)); | |
152 #else | |
153 #error Support your platform here | |
154 #endif | |
155 } | |
156 | |
157 void Toolbox::USleep(uint64_t microSeconds) | |
158 { | |
159 #if defined(_WIN32) | |
8 | 160 ::Sleep(static_cast<DWORD>(microSeconds / static_cast<uint64_t>(1000))); |
0 | 161 #elif defined(__linux) |
162 usleep(microSeconds); | |
163 #else | |
164 #error Support your platform here | |
165 #endif | |
166 } | |
167 | |
168 | |
169 void Toolbox::ServerBarrier() | |
170 { | |
10 | 171 #if defined(_WIN32) |
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172 SetConsoleCtrlHandler(ConsoleControlHandler, true); |
10 | 173 #else |
0 | 174 signal(SIGINT, SignalHandler); |
175 signal(SIGQUIT, SignalHandler); | |
176 #endif | |
177 | |
178 finish = false; | |
179 while (!finish) | |
180 { | |
181 USleep(100000); | |
182 } | |
183 | |
10 | 184 #if defined(_WIN32) |
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185 SetConsoleCtrlHandler(ConsoleControlHandler, false); |
10 | 186 #else |
0 | 187 signal(SIGINT, NULL); |
188 signal(SIGQUIT, NULL); | |
189 #endif | |
190 } | |
191 | |
192 | |
193 | |
194 void Toolbox::ToUpperCase(std::string& s) | |
195 { | |
196 std::transform(s.begin(), s.end(), s.begin(), toupper); | |
197 } | |
198 | |
199 | |
200 void Toolbox::ToLowerCase(std::string& s) | |
201 { | |
202 std::transform(s.begin(), s.end(), s.begin(), tolower); | |
203 } | |
204 | |
205 | |
206 | |
207 void Toolbox::ReadFile(std::string& content, | |
208 const std::string& path) | |
209 { | |
210 boost::filesystem::ifstream f; | |
211 f.open(path, std::ifstream::in | std::ios::binary); | |
212 if (!f.good()) | |
213 { | |
59 | 214 throw OrthancException("Unable to open a file"); |
0 | 215 } |
216 | |
217 // http://www.cplusplus.com/reference/iostream/istream/tellg/ | |
218 f.seekg(0, std::ios::end); | |
219 std::streamsize size = f.tellg(); | |
220 f.seekg(0, std::ios::beg); | |
221 | |
222 content.resize(size); | |
223 if (size != 0) | |
224 { | |
225 f.read(reinterpret_cast<char*>(&content[0]), size); | |
226 } | |
227 | |
228 f.close(); | |
229 } | |
230 | |
231 | |
232 void Toolbox::RemoveFile(const std::string& path) | |
233 { | |
234 if (boost::filesystem::exists(path)) | |
235 { | |
236 if (boost::filesystem::is_regular_file(path)) | |
237 boost::filesystem::remove(path); | |
238 else | |
59 | 239 throw OrthancException("The path is not a regular file: " + path); |
0 | 240 } |
241 } | |
242 | |
243 | |
244 | |
245 void Toolbox::SplitUriComponents(UriComponents& components, | |
246 const std::string& uri) | |
247 { | |
248 static const char URI_SEPARATOR = '/'; | |
249 | |
250 components.clear(); | |
251 | |
252 if (uri.size() == 0 || | |
253 uri[0] != URI_SEPARATOR) | |
254 { | |
59 | 255 throw OrthancException(ErrorCode_UriSyntax); |
0 | 256 } |
257 | |
258 // Count the number of slashes in the URI to make an assumption | |
259 // about the number of components in the URI | |
260 unsigned int estimatedSize = 0; | |
261 for (unsigned int i = 0; i < uri.size(); i++) | |
262 { | |
263 if (uri[i] == URI_SEPARATOR) | |
264 estimatedSize++; | |
265 } | |
266 | |
267 components.reserve(estimatedSize - 1); | |
268 | |
269 unsigned int start = 1; | |
270 unsigned int end = 1; | |
271 while (end < uri.size()) | |
272 { | |
273 // This is the loop invariant | |
274 assert(uri[start - 1] == '/' && (end >= start)); | |
275 | |
276 if (uri[end] == '/') | |
277 { | |
278 components.push_back(std::string(&uri[start], end - start)); | |
279 end++; | |
280 start = end; | |
281 } | |
282 else | |
283 { | |
284 end++; | |
285 } | |
286 } | |
287 | |
288 if (start < uri.size()) | |
289 { | |
290 components.push_back(std::string(&uri[start], end - start)); | |
291 } | |
207 | 292 |
293 for (size_t i = 0; i < components.size(); i++) | |
294 { | |
295 if (components[i].size() == 0) | |
296 { | |
297 // Empty component, as in: "/coucou//e" | |
298 throw OrthancException(ErrorCode_UriSyntax); | |
299 } | |
300 } | |
0 | 301 } |
302 | |
303 | |
304 bool Toolbox::IsChildUri(const UriComponents& baseUri, | |
305 const UriComponents& testedUri) | |
306 { | |
307 if (testedUri.size() < baseUri.size()) | |
308 { | |
309 return false; | |
310 } | |
311 | |
312 for (size_t i = 0; i < baseUri.size(); i++) | |
313 { | |
314 if (baseUri[i] != testedUri[i]) | |
315 return false; | |
316 } | |
317 | |
318 return true; | |
319 } | |
320 | |
321 | |
322 std::string Toolbox::AutodetectMimeType(const std::string& path) | |
323 { | |
324 std::string contentType; | |
325 size_t lastDot = path.rfind('.'); | |
326 size_t lastSlash = path.rfind('/'); | |
327 | |
328 if (lastDot == std::string::npos || | |
329 (lastSlash != std::string::npos && lastDot < lastSlash)) | |
330 { | |
331 // No trailing dot, unable to detect the content type | |
332 } | |
333 else | |
334 { | |
335 const char* extension = &path[lastDot + 1]; | |
336 | |
337 // http://en.wikipedia.org/wiki/Mime_types | |
338 // Text types | |
339 if (!strcmp(extension, "txt")) | |
340 contentType = "text/plain"; | |
341 else if (!strcmp(extension, "html")) | |
342 contentType = "text/html"; | |
343 else if (!strcmp(extension, "xml")) | |
344 contentType = "text/xml"; | |
345 else if (!strcmp(extension, "css")) | |
346 contentType = "text/css"; | |
347 | |
348 // Application types | |
349 else if (!strcmp(extension, "js")) | |
350 contentType = "application/javascript"; | |
351 else if (!strcmp(extension, "json")) | |
352 contentType = "application/json"; | |
353 else if (!strcmp(extension, "pdf")) | |
354 contentType = "application/pdf"; | |
355 | |
356 // Images types | |
357 else if (!strcmp(extension, "jpg") || !strcmp(extension, "jpeg")) | |
358 contentType = "image/jpeg"; | |
359 else if (!strcmp(extension, "gif")) | |
360 contentType = "image/gif"; | |
361 else if (!strcmp(extension, "png")) | |
362 contentType = "image/png"; | |
363 } | |
364 | |
365 return contentType; | |
366 } | |
367 | |
368 | |
369 std::string Toolbox::FlattenUri(const UriComponents& components, | |
370 size_t fromLevel) | |
371 { | |
372 if (components.size() <= fromLevel) | |
373 { | |
374 return "/"; | |
375 } | |
376 else | |
377 { | |
378 std::string r; | |
379 | |
380 for (size_t i = fromLevel; i < components.size(); i++) | |
381 { | |
382 r += "/" + components[i]; | |
383 } | |
384 | |
385 return r; | |
386 } | |
387 } | |
388 | |
389 | |
390 | |
391 uint64_t Toolbox::GetFileSize(const std::string& path) | |
392 { | |
393 try | |
394 { | |
395 return static_cast<uint64_t>(boost::filesystem::file_size(path)); | |
396 } | |
397 catch (boost::filesystem::filesystem_error) | |
398 { | |
59 | 399 throw OrthancException(ErrorCode_InexistentFile); |
0 | 400 } |
401 } | |
22 | 402 |
403 | |
404 static char GetHexadecimalCharacter(uint8_t value) | |
405 { | |
406 assert(value < 16); | |
407 | |
408 if (value < 10) | |
409 return value + '0'; | |
410 else | |
411 return (value - 10) + 'a'; | |
412 } | |
413 | |
23 | 414 |
22 | 415 void Toolbox::ComputeMD5(std::string& result, |
416 const std::string& data) | |
417 { | |
418 md5_state_s state; | |
419 md5_init(&state); | |
420 | |
421 if (data.size() > 0) | |
422 { | |
423 md5_append(&state, reinterpret_cast<const md5_byte_t*>(&data[0]), | |
424 static_cast<int>(data.size())); | |
425 } | |
426 | |
427 md5_byte_t actualHash[16]; | |
428 md5_finish(&state, actualHash); | |
429 | |
430 result.resize(32); | |
431 for (unsigned int i = 0; i < 16; i++) | |
432 { | |
433 result[2 * i] = GetHexadecimalCharacter(actualHash[i] / 16); | |
434 result[2 * i + 1] = GetHexadecimalCharacter(actualHash[i] % 16); | |
435 } | |
436 } | |
24 | 437 |
438 | |
439 std::string Toolbox::EncodeBase64(const std::string& data) | |
440 { | |
86 | 441 return base64_encode(data); |
24 | 442 } |
443 | |
365 | 444 std::string Toolbox::DecodeBase64(const std::string& data) |
445 { | |
446 return base64_decode(data); | |
447 } | |
448 | |
87
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449 |
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450 #if defined(_WIN32) |
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451 std::string Toolbox::GetPathToExecutable() |
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452 { |
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453 // Yes, this is ugly, but there is no simple way to get the |
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454 // required buffer size, so we use a big constant |
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455 std::vector<char> buffer(32768); |
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456 /*int bytes =*/ GetModuleFileNameA(NULL, &buffer[0], static_cast<DWORD>(buffer.size() - 1)); |
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457 return std::string(&buffer[0]); |
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458 } |
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459 |
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460 #elif defined(__linux) |
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461 std::string Toolbox::GetPathToExecutable() |
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462 { |
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463 std::vector<char> buffer(PATH_MAX + 1); |
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464 ssize_t bytes = readlink("/proc/self/exe", &buffer[0], buffer.size() - 1); |
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465 if (bytes == 0) |
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466 { |
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467 throw OrthancException("Unable to get the path to the executable"); |
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468 } |
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469 |
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470 return std::string(&buffer[0]); |
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471 } |
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472 |
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473 #elif defined(__APPLE__) && defined(__MACH__) |
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474 std::string Toolbox::GetPathToExecutable() |
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475 { |
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476 char pathbuf[PATH_MAX + 1]; |
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477 unsigned int bufsize = static_cast<int>(sizeof(pathbuf)); |
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478 |
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479 _NSGetExecutablePath( pathbuf, &bufsize); |
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480 |
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481 return std::string(pathbuf); |
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482 } |
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483 |
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484 #else |
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485 #error Support your platform here |
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486 #endif |
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487 |
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488 |
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489 std::string Toolbox::GetDirectoryOfExecutable() |
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490 { |
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491 boost::filesystem::path p(GetPathToExecutable()); |
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492 return p.parent_path().string(); |
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493 } |
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494 |
107
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495 |
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496 std::string Toolbox::ConvertToUtf8(const std::string& source, |
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497 const char* fromEncoding) |
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498 { |
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499 #if BOOST_HAS_LOCALE == 1 |
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500 try |
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501 { |
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502 return boost::locale::conv::to_utf<char>(source, fromEncoding); |
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503 } |
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504 catch (std::runtime_error&) |
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505 { |
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506 // Bad input string or bad encoding |
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507 return ConvertToAscii(source); |
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508 } |
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509 #else |
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510 IconvRabi iconv("UTF-8", fromEncoding); |
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511 try |
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512 { |
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513 return iconv.Convert(source); |
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514 } |
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515 catch (OrthancException) |
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516 { |
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517 return ConvertToAscii(source); |
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518 } |
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519 #endif |
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520 } |
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521 |
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522 |
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523 std::string Toolbox::ConvertToAscii(const std::string& source) |
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524 { |
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525 std::string result; |
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526 |
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527 result.reserve(source.size()); |
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528 for (size_t i = 0; i < source.size(); i++) |
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529 { |
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530 if (source[i] < 128 && source[i] >= 0 && !iscntrl(source[i])) |
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531 { |
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532 result.push_back(source[i]); |
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533 } |
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534 } |
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535 |
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536 return result; |
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537 } |
177 | 538 |
539 void Toolbox::ComputeSHA1(std::string& result, | |
540 const std::string& data) | |
541 { | |
542 SHA1 sha1; | |
543 if (data.size() > 0) | |
544 { | |
545 sha1.Input(&data[0], data.size()); | |
546 } | |
547 | |
548 unsigned digest[5]; | |
549 | |
550 // Sanity check for the memory layout: A SHA-1 digest is 160 bits wide | |
551 assert(sizeof(unsigned) == 4 && sizeof(digest) == (160 / 8)); | |
552 | |
553 if (sha1.Result(digest)) | |
554 { | |
555 result.resize(8 * 5 + 4); | |
556 sprintf(&result[0], "%08x-%08x-%08x-%08x-%08x", | |
557 digest[0], | |
558 digest[1], | |
559 digest[2], | |
560 digest[3], | |
561 digest[4]); | |
562 } | |
563 else | |
564 { | |
565 throw OrthancException(ErrorCode_InternalError); | |
566 } | |
567 } | |
568 | |
402 | 569 bool Toolbox::IsSHA1(const std::string& str) |
570 { | |
571 if (str.size() != 44) | |
572 { | |
573 return false; | |
574 } | |
575 | |
576 for (unsigned int i = 0; i < 44; i++) | |
577 { | |
578 if (i == 8 || | |
579 i == 17 || | |
580 i == 26 || | |
581 i == 35) | |
582 { | |
583 if (str[i] != '-') | |
584 return false; | |
585 } | |
586 else | |
587 { | |
588 if (!isalnum(str[i])) | |
589 return false; | |
590 } | |
591 } | |
592 | |
593 return true; | |
594 } | |
595 | |
187
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596 std::string Toolbox::GetNowIsoString() |
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597 { |
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598 boost::posix_time::ptime now = boost::posix_time::second_clock::local_time(); |
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599 return boost::posix_time::to_iso_string(now); |
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600 } |
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601 |
247
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602 std::string Toolbox::StripSpaces(const std::string& source) |
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603 { |
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604 size_t first = 0; |
177 | 605 |
247
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606 while (first < source.length() && |
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607 isspace(source[first])) |
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608 { |
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609 first++; |
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610 } |
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611 |
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612 if (first == source.length()) |
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613 { |
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614 // String containing only spaces |
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615 return ""; |
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616 } |
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617 |
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618 size_t last = source.length(); |
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619 while (last > first && |
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620 isspace(source[last - 1])) |
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621 { |
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622 last--; |
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623 } |
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624 |
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625 assert(first <= last); |
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626 return source.substr(first, last - first); |
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627 } |
336 | 628 |
629 | |
337 | 630 static char Hex2Dec(char c) |
336 | 631 { |
632 return ((c >= '0' && c <= '9') ? c - '0' : | |
633 ((c >= 'a' && c <= 'f') ? c - 'a' + 10 : c - 'A' + 10)); | |
634 } | |
635 | |
636 void Toolbox::UrlDecode(std::string& s) | |
637 { | |
638 // http://en.wikipedia.org/wiki/Percent-encoding | |
639 // http://www.w3schools.com/tags/ref_urlencode.asp | |
640 // http://stackoverflow.com/questions/154536/encode-decode-urls-in-c | |
641 | |
642 if (s.size() == 0) | |
643 { | |
644 return; | |
645 } | |
646 | |
647 size_t source = 0; | |
648 size_t target = 0; | |
649 | |
650 while (source < s.size()) | |
651 { | |
652 if (s[source] == '%' && | |
653 source + 2 < s.size() && | |
654 isalnum(s[source + 1]) && | |
655 isalnum(s[source + 2])) | |
656 { | |
657 s[target] = (Hex2Dec(s[source + 1]) << 4) | Hex2Dec(s[source + 2]); | |
658 source += 3; | |
659 target += 1; | |
660 } | |
661 else | |
662 { | |
663 if (s[source] == '+') | |
664 s[target] = ' '; | |
665 else | |
666 s[target] = s[source]; | |
667 | |
668 source++; | |
669 target++; | |
670 } | |
671 } | |
672 | |
673 s.resize(target); | |
674 } | |
453 | 675 |
676 | |
677 Endianness Toolbox::DetectEndianness() | |
678 { | |
679 // http://sourceforge.net/p/predef/wiki/Endianness/ | |
680 | |
681 uint8_t buffer[4]; | |
682 | |
683 buffer[0] = 0x00; | |
684 buffer[1] = 0x01; | |
685 buffer[2] = 0x02; | |
686 buffer[3] = 0x03; | |
687 | |
688 switch (*((uint32_t *)buffer)) | |
689 { | |
690 case 0x00010203: | |
691 return Endianness_Big; | |
692 | |
693 case 0x03020100: | |
694 return Endianness_Little; | |
695 | |
696 default: | |
697 throw OrthancException(ErrorCode_NotImplemented); | |
698 } | |
699 } | |
0 | 700 } |