OSDN Git Service

Moved translation support into MUtilities library + make clean-up of temporary files...
[mutilities/MUtilities.git] / src / Global.cpp
1 ///////////////////////////////////////////////////////////////////////////////
2 // MuldeR's Utilities for Qt
3 // Copyright (C) 2004-2014 LoRd_MuldeR <MuldeR2@GMX.de>
4 //
5 // This library is free software; you can redistribute it and/or
6 // modify it under the terms of the GNU Lesser General Public
7 // License as published by the Free Software Foundation; either
8 // version 2.1 of the License, or (at your option) any later version.
9 //
10 // This library is distributed in the hope that it will be useful,
11 // but WITHOUT ANY WARRANTY; without even the implied warranty of
12 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
13 // Lesser General Public License for more details.
14 //
15 // You should have received a copy of the GNU Lesser General Public
16 // License along with this library; if not, write to the Free Software
17 // Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
18 //
19 // http://www.gnu.org/licenses/lgpl-2.1.txt
20 //////////////////////////////////////////////////////////////////////////////////
21
22 #if _MSC_VER
23 #define _CRT_RAND_S 1
24 #endif
25
26 //MUtils
27 #include <MUtils/Global.h>
28 #include <MUtils/OSSupport.h>
29
30 //Internal
31 #include "DirLocker.h"
32 #include "3rd_party/strnatcmp/include/strnatcmp.h"
33
34 //Qt
35 #include <QDir>
36 #include <QReadWriteLock>
37 #include <QProcess>
38 #include <QTextCodec>
39
40 //CRT
41 #include <cstdlib>
42 #include <ctime>
43 #include <process.h>
44
45 //VLD
46 #ifdef _MSC_VER
47 #include <vld.h>
48 #endif
49
50 ///////////////////////////////////////////////////////////////////////////////
51 // Random Support
52 ///////////////////////////////////////////////////////////////////////////////
53
54 //Robert Jenkins' 96 bit Mix Function
55 static unsigned int mix_function(const unsigned int x, const unsigned int y, const unsigned int z)
56 {
57         unsigned int a = x;
58         unsigned int b = y;
59         unsigned int c = z;
60         
61         a=a-b;  a=a-c;  a=a^(c >> 13);
62         b=b-c;  b=b-a;  b=b^(a << 8 ); 
63         c=c-a;  c=c-b;  c=c^(b >> 13);
64         a=a-b;  a=a-c;  a=a^(c >> 12);
65         b=b-c;  b=b-a;  b=b^(a << 16);
66         c=c-a;  c=c-b;  c=c^(b >> 5 );
67         a=a-b;  a=a-c;  a=a^(c >> 3 );
68         b=b-c;  b=b-a;  b=b^(a << 10);
69         c=c-a;  c=c-b;  c=c^(b >> 15);
70
71         return a ^ b ^ c;
72 }
73
74 void MUtils::seed_rand(void)
75 {
76         qsrand(mix_function(clock(), time(NULL), _getpid()));
77 }
78
79 quint32 MUtils::next_rand32(void)
80 {
81         quint32 rnd = 0xDEADBEEF;
82
83 #ifdef _CRT_RAND_S
84         if(rand_s(&rnd) == 0)
85         {
86                 return rnd;
87         }
88 #endif //_CRT_RAND_S
89
90         for(size_t i = 0; i < sizeof(quint32); i++)
91         {
92                 rnd = (rnd << 8) ^ qrand();
93         }
94
95         return rnd;
96 }
97
98 quint64 MUtils::next_rand64(void)
99 {
100         return (quint64(next_rand32()) << 32) | quint64(next_rand32());
101 }
102
103 QString MUtils::rand_str(const bool &bLong)
104 {
105         if(!bLong)
106         {
107                 return QString::number(next_rand64(), 16).rightJustified(16, QLatin1Char('0'));
108         }
109         return QString("%1%2").arg(rand_str(false), rand_str(false));
110 }
111
112 ///////////////////////////////////////////////////////////////////////////////
113 // TEMP FOLDER
114 ///////////////////////////////////////////////////////////////////////////////
115
116 static QScopedPointer<MUtils::Internal::DirLock> g_temp_folder_file;
117 static QReadWriteLock                            g_temp_folder_lock;
118
119 static QString try_create_subfolder(const QString &baseDir, const QString &postfix)
120 {
121         const QString baseDirPath = QDir(baseDir).absolutePath();
122         for(int i = 0; i < 32; i++)
123         {
124                 QDir directory(baseDirPath);
125                 if(directory.mkpath(postfix) && directory.cd(postfix))
126                 {
127                         return directory.canonicalPath();
128                 }
129         }
130         return QString();
131 }
132
133 static MUtils::Internal::DirLock *try_init_temp_folder(const QString &baseDir)
134 {
135         const QString tempPath = try_create_subfolder(baseDir, MUtils::rand_str());
136         if(!tempPath.isEmpty())
137         {
138                 for(int i = 0; i < 32; i++)
139                 {
140                         MUtils::Internal::DirLock *lockFile = NULL;
141                         try
142                         {
143                                 lockFile = new MUtils::Internal::DirLock(tempPath);
144                                 return lockFile;
145                         }
146                         catch(MUtils::Internal::DirLockException&)
147                         {
148                                 /*ignore error and try again*/
149                         }
150                 }
151         }
152         return NULL;
153 }
154
155 static void temp_folder_cleaup(void)
156 {
157         QWriteLocker writeLock(&g_temp_folder_lock);
158         
159         //Clean the directory
160         while(!g_temp_folder_file.isNull())
161         {
162                 g_temp_folder_file.reset(NULL);
163         }
164 }
165
166 const QString &MUtils::temp_folder(void)
167 {
168         QReadLocker readLock(&g_temp_folder_lock);
169
170         //Already initialized?
171         if(!g_temp_folder_file.isNull())
172         {
173                 return g_temp_folder_file->getPath();
174         }
175
176         //Obtain the write lock to initilaize
177         readLock.unlock();
178         QWriteLocker writeLock(&g_temp_folder_lock);
179         
180         //Still uninitilaized?
181         if(!g_temp_folder_file.isNull())
182         {
183                 return g_temp_folder_file->getPath();
184         }
185
186         //Try the %TMP% or %TEMP% directory first
187         if(MUtils::Internal::DirLock *lockFile = try_init_temp_folder(QDir::tempPath()))
188         {
189                 g_temp_folder_file.reset(lockFile);
190                 atexit(temp_folder_cleaup);
191                 return lockFile->getPath();
192         }
193
194         qWarning("%%TEMP%% directory not found -> trying fallback mode now!");
195         static const OS::known_folder_t FOLDER_ID[2] = { OS::FOLDER_LOCALAPPDATA, OS::FOLDER_SYSTROOT_DIR };
196         for(size_t id = 0; id < 2; id++)
197         {
198                 const QString &knownFolder = OS::known_folder(FOLDER_ID[id]);
199                 if(!knownFolder.isEmpty())
200                 {
201                         const QString tempRoot = try_create_subfolder(knownFolder, QLatin1String("TEMP"));
202                         if(!tempRoot.isEmpty())
203                         {
204                                 if(MUtils::Internal::DirLock *lockFile = try_init_temp_folder(tempRoot))
205                                 {
206                                         g_temp_folder_file.reset(lockFile);
207                                         atexit(temp_folder_cleaup);
208                                         return lockFile->getPath();
209                                 }
210                         }
211                 }
212         }
213
214         qFatal("Temporary directory could not be initialized !!!");
215         return (*((QString*)NULL));
216 }
217
218 ///////////////////////////////////////////////////////////////////////////////
219 // REMOVE DIRECTORY / FILE
220 ///////////////////////////////////////////////////////////////////////////////
221
222 bool MUtils::remove_file(const QString &fileName)
223 {
224         QFileInfo fileInfo(fileName);
225         if(!(fileInfo.exists() && fileInfo.isFile()))
226         {
227                 return true;
228         }
229
230         for(int i = 0; i < 32; i++)
231         {
232                 QFile file(fileName);
233                 file.setPermissions(QFile::ReadOther | QFile::WriteOther);
234                 if(file.remove())
235                 {
236                         return true;
237                 }
238         }
239
240         qWarning("Could not delete \"%s\"", MUTILS_UTF8(fileName));
241         return false;
242 }
243
244 bool MUtils::remove_directory(const QString &folderPath)
245 {
246         QDir folder(folderPath);
247         if(!folder.exists())
248         {
249                 return true;
250         }
251
252         const QFileInfoList entryList = folder.entryInfoList(QDir::AllEntries | QDir::NoDotAndDotDot | QDir::Hidden);
253         for(int i = 0; i < entryList.count(); i++)
254         {
255                 if(entryList.at(i).isDir())
256                 {
257                         remove_directory(entryList.at(i).canonicalFilePath());
258                 }
259                 else
260                 {
261                         remove_file(entryList.at(i).canonicalFilePath());
262                 }
263         }
264
265         for(int i = 0; i < 32; i++)
266         {
267                 if(folder.rmdir("."))
268                 {
269                         return true;
270                 }
271         }
272         
273         qWarning("Could not rmdir \"%s\"", MUTILS_UTF8(folderPath));
274         return false;
275 }
276
277 ///////////////////////////////////////////////////////////////////////////////
278 // PROCESS UTILS
279 ///////////////////////////////////////////////////////////////////////////////
280
281 void MUtils::init_process(QProcess &process, const QString &wokringDir, const bool bReplaceTempDir)
282 {
283         //Environment variable names
284         static const char *const s_envvar_names_temp[] =
285         {
286                 "TEMP", "TMP", "TMPDIR", "HOME", "USERPROFILE", "HOMEPATH", NULL
287         };
288         static const char *const s_envvar_names_remove[] =
289         {
290                 "WGETRC", "SYSTEM_WGETRC", "HTTP_PROXY", "FTP_PROXY", "NO_PROXY", "GNUPGHOME", "LC_ALL", "LC_COLLATE", "LC_CTYPE", "LC_MESSAGES", "LC_MONETARY", "LC_NUMERIC", "LC_TIME", "LANG", NULL
291         };
292
293         //Initialize environment
294         QProcessEnvironment env = process.processEnvironment();
295         if(env.isEmpty()) env = QProcessEnvironment::systemEnvironment();
296
297         //Clean a number of enviroment variables that might affect our tools
298         for(size_t i = 0; s_envvar_names_remove[i]; i++)
299         {
300                 env.remove(QString::fromLatin1(s_envvar_names_remove[i]));
301                 env.remove(QString::fromLatin1(s_envvar_names_remove[i]).toLower());
302         }
303
304         const QString tempDir = QDir::toNativeSeparators(temp_folder());
305
306         //Replace TEMP directory in environment
307         if(bReplaceTempDir)
308         {
309                 for(size_t i = 0; s_envvar_names_temp[i]; i++)
310                 {
311                         env.insert(s_envvar_names_temp[i], tempDir);
312                 }
313         }
314
315         //Setup PATH variable
316         const QString path = env.value("PATH", QString()).trimmed();
317         env.insert("PATH", path.isEmpty() ? tempDir : QString("%1;%2").arg(tempDir, path));
318         
319         //Setup QPorcess object
320         process.setWorkingDirectory(wokringDir);
321         process.setProcessChannelMode(QProcess::MergedChannels);
322         process.setReadChannel(QProcess::StandardOutput);
323         process.setProcessEnvironment(env);
324 }
325
326 ///////////////////////////////////////////////////////////////////////////////
327 // NATURAL ORDER STRING COMPARISON
328 ///////////////////////////////////////////////////////////////////////////////
329
330 static bool natural_string_sort_helper(const QString &str1, const QString &str2)
331 {
332         return (MUtils::Internal::NaturalSort::strnatcmp(MUTILS_WCHR(str1), MUTILS_WCHR(str2)) < 0);
333 }
334
335 static bool natural_string_sort_helper_fold_case(const QString &str1, const QString &str2)
336 {
337         return (MUtils::Internal::NaturalSort::strnatcasecmp(MUTILS_WCHR(str1), MUTILS_WCHR(str2)) < 0);
338 }
339
340 void MUtils::natural_string_sort(QStringList &list, const bool bIgnoreCase)
341 {
342         qSort(list.begin(), list.end(), bIgnoreCase ? natural_string_sort_helper_fold_case : natural_string_sort_helper);
343 }
344
345 ///////////////////////////////////////////////////////////////////////////////
346 // CLEAN FILE PATH
347 ///////////////////////////////////////////////////////////////////////////////
348
349 static const struct
350 {
351         const char *const search;
352         const char *const replace;
353 }
354 CLEAN_FILE_NAME[] =
355 {
356         { "\\",  "-"  },
357         { " / ", ", " },
358         { "/",   ","  },
359         { ":",   "-"  },
360         { "*",   "x"  },
361         { "?",   "!"  },
362         { "<",   "["  },
363         { ">",   "]"  },
364         { "|",   "!"  },
365         { "\"",  "'"  },
366         { NULL,  NULL }
367 };
368
369 QString MUtils::clean_file_name(const QString &name)
370 {
371         QString str = name.simplified();
372
373         for(size_t i = 0; CLEAN_FILE_NAME[i].search; i++) 
374         {
375                 str.replace(CLEAN_FILE_NAME[i].search, CLEAN_FILE_NAME[i].replace);
376         }
377         
378         QRegExp regExp("\"(.+)\"");
379         regExp.setMinimal(true);
380         str.replace(regExp, "`\\1ยด");
381         
382         return str.simplified();
383 }
384
385 QString MUtils::clean_file_path(const QString &path)
386 {
387         QStringList parts = path.simplified().replace("\\", "/").split("/", QString::SkipEmptyParts);
388
389         for(int i = 0; i < parts.count(); i++)
390         {
391                 parts[i] = MUtils::clean_file_name(parts[i]);
392         }
393
394         return parts.join("/");
395 }
396
397 ///////////////////////////////////////////////////////////////////////////////
398 // AVAILABLE CODEPAGES
399 ///////////////////////////////////////////////////////////////////////////////
400
401 QStringList MUtils::available_codepages(const bool &noAliases)
402 {
403         QStringList codecList;
404         QList<QByteArray> availableCodecs = QTextCodec::availableCodecs();
405
406         while(!availableCodecs.isEmpty())
407         {
408                 const QByteArray current = availableCodecs.takeFirst();
409                 if(!current.toLower().startsWith("system"))
410                 {
411                         codecList << QString::fromLatin1(current.constData(), current.size());
412                         if(noAliases)
413                         {
414                                 if(QTextCodec *const currentCodec = QTextCodec::codecForName(current.constData()))
415                                 {
416                                         const QList<QByteArray> aliases = currentCodec->aliases();
417                                         for(QList<QByteArray>::ConstIterator iter = aliases.constBegin(); iter != aliases.constEnd(); iter++)
418                                         {
419                                                 availableCodecs.removeAll(*iter);
420                                         }
421                                 }
422                         }
423                 }
424         }
425
426         return codecList;
427 }
428
429 ///////////////////////////////////////////////////////////////////////////////
430 // SELF-TEST
431 ///////////////////////////////////////////////////////////////////////////////
432
433 int MUtils::Internal::selfTest(const char *const buildKey, const bool debug)
434 {
435         static const bool MY_DEBUG_FLAG = MUTILS_DEBUG;
436         static const char *const MY_BUILD_KEY = __DATE__"@"__TIME__;
437
438         if(strncmp(buildKey, MY_BUILD_KEY, 14) || (MY_DEBUG_FLAG != debug))
439         {
440                 MUtils::OS::system_message_err(L"MUtils", L"FATAL ERROR: MUtils library version mismatch detected!");
441                 MUtils::OS::system_message_wrn(L"MUtils", L"Please re-build the complete solution in order to fix this issue!");
442                 abort();
443         }
444         return 0;
445 }