src/OSSupport_Win32.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // MuldeR's Utilities for Qt
   3 // Copyright (C) 2004-2015 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 //Win32 API
  23 #define WIN32_LEAN_AND_MEAN 1
  24 #include <Windows.h>
  25 #include <Psapi.h>
  26 #include <Sensapi.h>
  27 #include <Shellapi.h>
  28 #include <PowrProf.h>
  29 #include <Mmsystem.h>
  30 #pragma warning(push)
  31 #pragma warning(disable:4091) //for MSVC2015
  32 #include <ShlObj.h>
  33 #pragma warning(pop)
  34
  35 //CRT
  36 #include <io.h>
  37
  38 //Internal
  39 #include <MUtils/Global.h>
  40 #include <MUtils/OSSupport.h>
  41 #include <MUtils/GUI.h>
  42 #include "CriticalSection_Win32.h"
  43
  44 //Qt
  45 #include <QMap>
  46 #include <QReadWriteLock>
  47 #include <QLibrary>
  48 #include <QDir>
  49 #include <QWidget>
  50 #include <QProcess>
  51
  52 //Main thread ID
  53 static const DWORD g_main_thread_id = GetCurrentThreadId();
  54
  55 ///////////////////////////////////////////////////////////////////////////////
  56 // SYSTEM MESSAGE
  57 ///////////////////////////////////////////////////////////////////////////////
  58
  59 static const UINT g_msgBoxFlags = MB_TOPMOST | MB_TASKMODAL | MB_SETFOREGROUND;
  60
  61 void MUtils::OS::system_message_nfo(const wchar_t *const title, const wchar_t *const text)
  62 {
  63         MessageBoxW(NULL, text, title, g_msgBoxFlags | MB_ICONINFORMATION);
  64 }
  65
  66 void MUtils::OS::system_message_wrn(const wchar_t *const title, const wchar_t *const text)
  67 {
  68         MessageBoxW(NULL, text, title, g_msgBoxFlags | MB_ICONWARNING);
  69 }
  70
  71 void MUtils::OS::system_message_err(const wchar_t *const title, const wchar_t *const text)
  72 {
  73         MessageBoxW(NULL, text, title, g_msgBoxFlags | MB_ICONERROR);
  74 }
  75
  76 ///////////////////////////////////////////////////////////////////////////////
  77 // FETCH CLI ARGUMENTS
  78 ///////////////////////////////////////////////////////////////////////////////
  79
  80 static QReadWriteLock                          g_arguments_lock;
  81 static QScopedPointer<MUtils::OS::ArgumentMap> g_arguments_list;
  82
  83 const QStringList MUtils::OS::crack_command_line(const QString &command_line)
  84 {
  85         int nArgs = 0;
  86         LPWSTR *szArglist = CommandLineToArgvW(command_line.isNull() ? GetCommandLineW() : MUTILS_WCHR(command_line), &nArgs);
  87
  88         QStringList command_line_tokens;
  89         if(NULL != szArglist)
  90         {
  91                 for(int i = 0; i < nArgs; i++)
  92                 {
  93                         const QString argStr = MUTILS_QSTR(szArglist[i]).trimmed();
  94                         if(!argStr.isEmpty())
  95                         {
  96                                 command_line_tokens << argStr;
  97                         }
  98                 }
  99                 LocalFree(szArglist);
 100         }
 101
 102         return command_line_tokens;
 103 }
 104
 105 const MUtils::OS::ArgumentMap &MUtils::OS::arguments(void)
 106 {
 107         QReadLocker readLock(&g_arguments_lock);
 108
 109         //Already initialized?
 110         if(!g_arguments_list.isNull())
 111         {
 112                 return (*(g_arguments_list.data()));
 113         }
 114
 115         readLock.unlock();
 116         QWriteLocker writeLock(&g_arguments_lock);
 117
 118         //Still not initialized?
 119         if(!g_arguments_list.isNull())
 120         {
 121                 return (*(g_arguments_list.data()));
 122         }
 123
 124         g_arguments_list.reset(new ArgumentMap());
 125         const QStringList argList = crack_command_line();
 126
 127         if(!argList.isEmpty())
 128         {
 129                 const QString argPrefix = QLatin1String("--");
 130                 const QChar   separator = QLatin1Char('=');
 131
 132                 bool firstToken = true;
 133                 for(QStringList::ConstIterator iter = argList.constBegin(); iter != argList.constEnd(); iter++)
 134                 {
 135                         if(firstToken)
 136                         {
 137                                 firstToken = false;
 138                                 continue; /*skip executable file name*/
 139                         }
 140                         if(iter->startsWith(argPrefix))
 141                         {
 142                                 const QString argData = iter->mid(2).trimmed();
 143                                 if(argData.length() > 0)
 144                                 {
 145                                         const int separatorIndex = argData.indexOf(separator);
 146                                         if(separatorIndex > 0)
 147                                         {
 148                                                 const QString argKey = argData.left(separatorIndex).trimmed();
 149                                                 const QString argVal = argData.mid(separatorIndex + 1).trimmed();
 150                                                 g_arguments_list->insertMulti(argKey.toLower(), argVal);
 151                                         }
 152                                         else
 153                                         {
 154                                                 g_arguments_list->insertMulti(argData.toLower(), QString());
 155                                         }
 156                                 }
 157                         }
 158                 }
 159         }
 160         else if(argList.empty())
 161         {
 162                 qWarning("CommandLineToArgvW() has failed !!!");
 163         }
 164
 165         return (*(g_arguments_list.data()));
 166 }
 167
 168 ///////////////////////////////////////////////////////////////////////////////
 169 // COPY FILE
 170 ///////////////////////////////////////////////////////////////////////////////
 171
 172 typedef struct _progress_callback_data_t
 173 {
 174         MUtils::OS::progress_callback_t callback_function;
 175         void *user_data;
 176 }
 177 progress_callback_data_t;
 178
 179 static DWORD __stdcall copy_file_progress(LARGE_INTEGER TotalFileSize, LARGE_INTEGER TotalBytesTransferred, LARGE_INTEGER StreamSize, LARGE_INTEGER StreamBytesTransferred, DWORD dwStreamNumber, DWORD dwCallbackReason, HANDLE hSourceFile, HANDLE hDestinationFile, LPVOID lpData)
 180 {
 181         if(const progress_callback_data_t *data = (progress_callback_data_t*) lpData)
 182         {
 183                 const double progress = qBound(0.0, double(TotalBytesTransferred.QuadPart) / double(TotalFileSize.QuadPart), 1.0);
 184                 return data->callback_function(progress, data->user_data) ? PROGRESS_CONTINUE : PROGRESS_CANCEL;
 185         }
 186         return PROGRESS_CONTINUE;
 187 }
 188
 189 MUTILS_API bool MUtils::OS::copy_file(const QString &sourcePath, const QString &outputPath, const bool &overwrite, const progress_callback_t callback, void *const userData)
 190 {
 191         progress_callback_data_t callback_data = { callback, userData };
 192         BOOL cancel = FALSE;
 193         const BOOL result = CopyFileExW(MUTILS_WCHR(QDir::toNativeSeparators(sourcePath)), MUTILS_WCHR(QDir::toNativeSeparators(outputPath)), ((callback_data.callback_function) ? copy_file_progress : NULL), ((callback_data.callback_function) ? &callback_data : NULL), &cancel, (overwrite ? 0 : COPY_FILE_FAIL_IF_EXISTS));
 194
 195         if(result == FALSE)
 196         {
 197                 const DWORD errorCode = GetLastError();
 198                 if(errorCode != ERROR_REQUEST_ABORTED)
 199                 {
 200                         qWarning("CopyFile() failed with error code 0x%08X!", errorCode);
 201                 }
 202                 else
 203                 {
 204                         qWarning("CopyFile() operation was abroted by user!");
 205                 }
 206         }
 207
 208         return (result != FALSE);
 209 }
 210
 211 ///////////////////////////////////////////////////////////////////////////////
 212 // GET FILE VERSION
 213 ///////////////////////////////////////////////////////////////////////////////
 214
 215 static bool get_file_version_helper(const QString fileName, PVOID buffer, const size_t &size, quint16 *const major, quint16 *const minor, quint16 *const patch, quint16 *const build)
 216 {
 217         if(!GetFileVersionInfo(MUTILS_WCHR(fileName), 0, size, buffer))
 218         {
 219                 qWarning("GetFileVersionInfo() has failed, file version cannot be determined!");
 220                 return false;
 221         }
 222
 223         VS_FIXEDFILEINFO *verInfo;
 224         UINT verInfoLen;
 225         if(!VerQueryValue(buffer, L"\\", (LPVOID*)(&verInfo), &verInfoLen))
 226         {
 227                 qWarning("VerQueryValue() has failed, file version cannot be determined!");
 228                 return false;
 229         }
 230
 231         if(major) *major = quint16((verInfo->dwFileVersionMS >> 16) & 0x0000FFFF);
 232         if(minor) *minor = quint16((verInfo->dwFileVersionMS)       & 0x0000FFFF);
 233         if(patch) *patch = quint16((verInfo->dwFileVersionLS >> 16) & 0x0000FFFF);
 234         if(build) *build = quint16((verInfo->dwFileVersionLS)       & 0x0000FFFF);
 235
 236         return true;
 237 }
 238
 239 bool MUtils::OS::get_file_version(const QString fileName, quint16 *const major, quint16 *const minor, quint16 *const patch, quint16 *const build)
 240 {
 241         if(major) *major = 0U; if(minor) *minor = 0U;
 242         if(patch) *patch = 0U; if(build) *build = 0U;
 243
 244         const DWORD size = GetFileVersionInfoSize(MUTILS_WCHR(fileName), NULL);
 245         if(size < 1)
 246         {
 247                 qWarning("GetFileVersionInfoSize() has failed, file version cannot be determined!");
 248                 return false;
 249         }
 250
 251         PVOID buffer = _malloca(size);
 252         if(!buffer)
 253         {
 254                 qWarning("Memory allocation has failed!");
 255                 return false;
 256         }
 257
 258         const bool success = get_file_version_helper(fileName, buffer, size, major, minor, patch, build);
 259
 260         _freea(buffer);
 261         return success;
 262 }
 263
 264 ///////////////////////////////////////////////////////////////////////////////
 265 // OS VERSION DETECTION
 266 ///////////////////////////////////////////////////////////////////////////////
 267
 268 static bool g_os_version_initialized = false;
 269 static MUtils::OS::Version::os_version_t g_os_version_info = MUtils::OS::Version::UNKNOWN_OPSYS;
 270 static QReadWriteLock g_os_version_lock;
 271
 272 //Maps marketing names to the actual Windows NT versions
 273 static const struct
 274 {
 275         MUtils::OS::Version::os_version_t version;
 276         const char friendlyName[64];
 277 }
 278 g_os_version_lut[] =
 279 {
 280         { MUtils::OS::Version::WINDOWS_WIN2K, "Windows 2000"                                  },        //2000
 281         { MUtils::OS::Version::WINDOWS_WINXP, "Windows XP or Windows XP Media Center Edition" },        //XP
 282         { MUtils::OS::Version::WINDOWS_XPX64, "Windows Server 2003 or Windows XP x64"         },        //XP_x64
 283         { MUtils::OS::Version::WINDOWS_VISTA, "Windows Vista or Windows Server 2008"          },        //Vista
 284         { MUtils::OS::Version::WINDOWS_WIN70, "Windows 7 or Windows Server 2008 R2"           },        //7
 285         { MUtils::OS::Version::WINDOWS_WIN80, "Windows 8 or Windows Server 2012"              },        //8
 286         { MUtils::OS::Version::WINDOWS_WIN81, "Windows 8.1 or Windows Server 2012 R2"         },        //8.1
 287         { MUtils::OS::Version::WINDOWS_WN100, "Windows 10 or Windows Server 2014 (Preview)"   },        //10
 288         { MUtils::OS::Version::UNKNOWN_OPSYS, "N/A" }
 289 };
 290
 291 //OS version data dtructures
 292 namespace MUtils
 293 {
 294         namespace OS
 295         {
 296                 namespace Version
 297                 {
 298                         //Comparision operators for os_version_t
 299                         bool os_version_t::operator== (const os_version_t &rhs) const { return (type == rhs.type) && (versionMajor == rhs.versionMajor) && ((versionMinor == rhs.versionMinor)); }
 300                         bool os_version_t::operator!= (const os_version_t &rhs) const { return (type != rhs.type) || (versionMajor != rhs.versionMajor) || ((versionMinor != rhs.versionMinor)); }
 301                         bool os_version_t::operator>  (const os_version_t &rhs) const { return (type == rhs.type) && ((versionMajor > rhs.versionMajor) || ((versionMajor == rhs.versionMajor) && (versionMinor >  rhs.versionMinor))); }
 302                         bool os_version_t::operator>= (const os_version_t &rhs) const { return (type == rhs.type) && ((versionMajor > rhs.versionMajor) || ((versionMajor == rhs.versionMajor) && (versionMinor >= rhs.versionMinor))); }
 303                         bool os_version_t::operator<  (const os_version_t &rhs) const { return (type == rhs.type) && ((versionMajor < rhs.versionMajor) || ((versionMajor == rhs.versionMajor) && (versionMinor <  rhs.versionMinor))); }
 304                         bool os_version_t::operator<= (const os_version_t &rhs) const { return (type == rhs.type) && ((versionMajor < rhs.versionMajor) || ((versionMajor == rhs.versionMajor) && (versionMinor <= rhs.versionMinor))); }
 305
 306                         //Known Windows NT versions
 307                         const os_version_t WINDOWS_WIN2K = { OS_WINDOWS,  5, 0 };       // 2000
 308                         const os_version_t WINDOWS_WINXP = { OS_WINDOWS,  5, 1 };       // XP
 309                         const os_version_t WINDOWS_XPX64 = { OS_WINDOWS,  5, 2 };       // XP_x64
 310                         const os_version_t WINDOWS_VISTA = { OS_WINDOWS,  6, 0 };       // Vista
 311                         const os_version_t WINDOWS_WIN70 = { OS_WINDOWS,  6, 1 };       // 7
 312                         const os_version_t WINDOWS_WIN80 = { OS_WINDOWS,  6, 2 };       // 8
 313                         const os_version_t WINDOWS_WIN81 = { OS_WINDOWS,  6, 3 };       // 8.1
 314                         const os_version_t WINDOWS_WN100 = { OS_WINDOWS, 10, 0 };       // 10
 315
 316                         //Unknown OS
 317                         const os_version_t UNKNOWN_OPSYS = { OS_UNKNOWN, 0, 0 };        // N/A
 318                 }
 319         }
 320 }
 321
 322 static bool verify_os_version(const DWORD major, const DWORD minor)
 323 {
 324         OSVERSIONINFOEXW osvi;
 325         DWORDLONG dwlConditionMask = 0;
 326
 327         //Initialize the OSVERSIONINFOEX structure
 328         memset(&osvi, 0, sizeof(OSVERSIONINFOEXW));
 329         osvi.dwOSVersionInfoSize = sizeof(OSVERSIONINFOEXW);
 330         osvi.dwMajorVersion = major;
 331         osvi.dwMinorVersion = minor;
 332         osvi.dwPlatformId = VER_PLATFORM_WIN32_NT;
 333
 334         //Initialize the condition mask
 335         VER_SET_CONDITION(dwlConditionMask, VER_MAJORVERSION, VER_GREATER_EQUAL);
 336         VER_SET_CONDITION(dwlConditionMask, VER_MINORVERSION, VER_GREATER_EQUAL);
 337         VER_SET_CONDITION(dwlConditionMask, VER_PLATFORMID,   VER_EQUAL);
 338
 339         // Perform the test
 340         const BOOL ret = VerifyVersionInfoW(&osvi, VER_MAJORVERSION | VER_MINORVERSION | VER_PLATFORMID, dwlConditionMask);
 341
 342         //Error checking
 343         if(!ret)
 344         {
 345                 if(GetLastError() != ERROR_OLD_WIN_VERSION)
 346                 {
 347                         qWarning("VerifyVersionInfo() system call has failed!");
 348                 }
 349         }
 350
 351         return (ret != FALSE);
 352 }
 353
 354 static bool get_real_os_version(unsigned int *major, unsigned int *minor, bool *pbOverride)
 355 {
 356         *major = *minor = 0;
 357         *pbOverride = false;
 358
 359         //Initialize local variables
 360         OSVERSIONINFOEXW osvi;
 361         memset(&osvi, 0, sizeof(OSVERSIONINFOEXW));
 362         osvi.dwOSVersionInfoSize = sizeof(OSVERSIONINFOEXW);
 363
 364         //Try GetVersionEx() first
 365         if(GetVersionExW((LPOSVERSIONINFOW)&osvi) == FALSE)
 366         {
 367                 qWarning("GetVersionEx() has failed, cannot detect Windows version!");
 368                 return false;
 369         }
 370
 371         //Make sure we are running on NT
 372         if(osvi.dwPlatformId == VER_PLATFORM_WIN32_NT)
 373         {
 374                 *major = osvi.dwMajorVersion;
 375                 *minor = osvi.dwMinorVersion;
 376         }
 377         else
 378         {
 379                 qWarning("Not running on Windows NT, unsupported operating system!");
 380                 return false;
 381         }
 382
 383         //Determine the real *major* version first
 384         forever
 385         {
 386                 const DWORD nextMajor = (*major) + 1;
 387                 if(verify_os_version(nextMajor, 0))
 388                 {
 389                         *pbOverride = true;
 390                         *major = nextMajor;
 391                         *minor = 0;
 392                         continue;
 393                 }
 394                 break;
 395         }
 396
 397         //Now also determine the real *minor* version
 398         forever
 399         {
 400                 const DWORD nextMinor = (*minor) + 1;
 401                 if(verify_os_version((*major), nextMinor))
 402                 {
 403                         *pbOverride = true;
 404                         *minor = nextMinor;
 405                         continue;
 406                 }
 407                 break;
 408         }
 409
 410         //Workaround for the mess that is sometimes referred to as "Windows 10"
 411         if(((*major) > 6) || (((*major) == 6) && ((*minor) >= 2)))
 412         {
 413                 quint16 kernel32_major, kernel32_minor;
 414                 if(MUtils::OS::get_file_version(QLatin1String("kernel32"), &kernel32_major, &kernel32_minor))
 415                 {
 416                         if((kernel32_major > (*major)) || ((kernel32_major == (*major)) && (kernel32_minor > (*minor))))
 417                         {
 418                                 *major = kernel32_major;
 419                                 *minor = kernel32_minor;
 420                                 *pbOverride = true;
 421                         }
 422                 }
 423         }
 424
 425         return true;
 426 }
 427
 428 const MUtils::OS::Version::os_version_t &MUtils::OS::os_version(void)
 429 {
 430         QReadLocker readLock(&g_os_version_lock);
 431
 432         //Already initialized?
 433         if(g_os_version_initialized)
 434         {
 435                 return g_os_version_info;
 436         }
 437
 438         readLock.unlock();
 439         QWriteLocker writeLock(&g_os_version_lock);
 440
 441         //Initialized now?
 442         if(g_os_version_initialized)
 443         {
 444                 return g_os_version_info;
 445         }
 446
 447         //Detect OS version
 448         unsigned int major, minor; bool overrideFlg;
 449         if(get_real_os_version(&major, &minor, &overrideFlg))
 450         {
 451                 g_os_version_info.type = Version::OS_WINDOWS;
 452                 g_os_version_info.versionMajor = major;
 453                 g_os_version_info.versionMinor = minor;
 454                 g_os_version_info.overrideFlag = overrideFlg;
 455         }
 456         else
 457         {
 458                 qWarning("Failed to determin the operating system version!");
 459         }
 460
 461         //Completed
 462         g_os_version_initialized = true;
 463         return g_os_version_info;
 464 }
 465
 466 const char *MUtils::OS::os_friendly_name(const MUtils::OS::Version::os_version_t &os_version)
 467 {
 468         for(size_t i = 0; g_os_version_lut[i].version != MUtils::OS::Version::UNKNOWN_OPSYS; i++)
 469         {
 470                 if(os_version == g_os_version_lut[i].version)
 471                 {
 472                         return g_os_version_lut[i].friendlyName;
 473                 }
 474         }
 475
 476         return NULL;
 477 }
 478
 479 ///////////////////////////////////////////////////////////////////////////////
 480 // WINE DETECTION
 481 ///////////////////////////////////////////////////////////////////////////////
 482
 483 static bool g_wine_deteced = false;
 484 static bool g_wine_initialized = false;
 485 static QReadWriteLock g_wine_lock;
 486
 487 static const bool detect_wine(void)
 488 {
 489         bool is_wine = false;
 490
 491         QLibrary ntdll("ntdll.dll");
 492         if(ntdll.load())
 493         {
 494                 if(ntdll.resolve("wine_nt_to_unix_file_name") != NULL) is_wine = true;
 495                 if(ntdll.resolve("wine_get_version")          != NULL) is_wine = true;
 496                 ntdll.unload();
 497         }
 498
 499         return is_wine;
 500 }
 501
 502 const bool &MUtils::OS::running_on_wine(void)
 503 {
 504         QReadLocker readLock(&g_wine_lock);
 505
 506         //Already initialized?
 507         if(g_wine_initialized)
 508         {
 509                 return g_wine_deteced;
 510         }
 511
 512         readLock.unlock();
 513         QWriteLocker writeLock(&g_wine_lock);
 514
 515         //Initialized now?
 516         if(g_wine_initialized)
 517         {
 518                 return g_wine_deteced;
 519         }
 520
 521         //Try to detect Wine
 522         g_wine_deteced = detect_wine();
 523         g_wine_initialized = true;
 524
 525         return g_wine_deteced;
 526 }
 527
 528 ///////////////////////////////////////////////////////////////////////////////
 529 // KNWON FOLDERS
 530 ///////////////////////////////////////////////////////////////////////////////
 531
 532 typedef QMap<size_t, QString> KFMap;
 533 typedef HRESULT (WINAPI *SHGetKnownFolderPath_t)(const GUID &rfid, DWORD dwFlags, HANDLE hToken, PWSTR *ppszPath);
 534 typedef HRESULT (WINAPI *SHGetFolderPath_t)(HWND hwndOwner, int nFolder, HANDLE hToken, DWORD dwFlags, LPWSTR pszPath);
 535
 536 static QScopedPointer<KFMap>  g_known_folders_map;
 537 static SHGetKnownFolderPath_t g_known_folders_fpGetKnownFolderPath;
 538 static SHGetFolderPath_t      g_known_folders_fpGetFolderPath;
 539 static QReadWriteLock         g_known_folders_lock;
 540
 541 const QString &MUtils::OS::known_folder(known_folder_t folder_id)
 542 {
 543         typedef enum { KF_FLAG_CREATE = 0x00008000 } kf_flags_t;
 544
 545         struct
 546         {
 547                 const int csidl;
 548                 const GUID guid;
 549         }
 550         static s_folders[] =
 551         {
 552                 { 0x001c, {0xF1B32785,0x6FBA,0x4FCF,{0x9D,0x55,0x7B,0x8E,0x7F,0x15,0x70,0x91}} },  //CSIDL_LOCAL_APPDATA
 553                 { 0x0026, {0x905e63b6,0xc1bf,0x494e,{0xb2,0x9c,0x65,0xb7,0x32,0xd3,0xd2,0x1a}} },  //CSIDL_PROGRAM_FILES
 554                 { 0x0024, {0xF38BF404,0x1D43,0x42F2,{0x93,0x05,0x67,0xDE,0x0B,0x28,0xFC,0x23}} },  //CSIDL_WINDOWS_FOLDER
 555                 { 0x0025, {0x1AC14E77,0x02E7,0x4E5D,{0xB7,0x44,0x2E,0xB1,0xAE,0x51,0x98,0xB7}} },  //CSIDL_SYSTEM_FOLDER
 556         };
 557
 558         size_t folderId = size_t(-1);
 559
 560         switch(folder_id)
 561         {
 562                 case FOLDER_LOCALAPPDATA: folderId = 0; break;
 563                 case FOLDER_PROGRAMFILES: folderId = 1; break;
 564                 case FOLDER_SYSTROOT_DIR: folderId = 2; break;
 565                 case FOLDER_SYSTEMFOLDER: folderId = 3; break;
 566         }
 567
 568         if(folderId == size_t(-1))
 569         {
 570                 qWarning("Invalid 'known' folder was requested!");
 571                 return *reinterpret_cast<QString*>(NULL);
 572         }
 573
 574         QReadLocker readLock(&g_known_folders_lock);
 575
 576         //Already in cache?
 577         if(!g_known_folders_map.isNull())
 578         {
 579                 if(g_known_folders_map->contains(folderId))
 580                 {
 581                         return g_known_folders_map->operator[](folderId);
 582                 }
 583         }
 584
 585         //Obtain write lock to initialize
 586         readLock.unlock();
 587         QWriteLocker writeLock(&g_known_folders_lock);
 588
 589         //Still not in cache?
 590         if(!g_known_folders_map.isNull())
 591         {
 592                 if(g_known_folders_map->contains(folderId))
 593                 {
 594                         return g_known_folders_map->operator[](folderId);
 595                 }
 596         }
 597
 598         //Initialize on first call
 599         if(g_known_folders_map.isNull())
 600         {
 601                 QLibrary shell32("shell32.dll");
 602                 if(shell32.load())
 603                 {
 604                         g_known_folders_fpGetFolderPath =      (SHGetFolderPath_t)      shell32.resolve("SHGetFolderPathW");
 605                         g_known_folders_fpGetKnownFolderPath = (SHGetKnownFolderPath_t) shell32.resolve("SHGetKnownFolderPath");
 606                 }
 607                 g_known_folders_map.reset(new QMap<size_t, QString>());
 608         }
 609
 610         QString folderPath;
 611
 612         //Now try to get the folder path!
 613         if(g_known_folders_fpGetKnownFolderPath)
 614         {
 615                 WCHAR *path = NULL;
 616                 if(g_known_folders_fpGetKnownFolderPath(s_folders[folderId].guid, KF_FLAG_CREATE, NULL, &path) == S_OK)
 617                 {
 618                         //MessageBoxW(0, path, L"SHGetKnownFolderPath", MB_TOPMOST);
 619                         QDir folderTemp = QDir(QDir::fromNativeSeparators(MUTILS_QSTR(path)));
 620                         if(folderTemp.exists())
 621                         {
 622                                 folderPath = folderTemp.canonicalPath();
 623                         }
 624                         CoTaskMemFree(path);
 625                 }
 626         }
 627         else if(g_known_folders_fpGetFolderPath)
 628         {
 629                 QScopedArrayPointer<WCHAR> path(new WCHAR[4096]);
 630                 if(g_known_folders_fpGetFolderPath(NULL, s_folders[folderId].csidl | CSIDL_FLAG_CREATE, NULL, NULL, path.data()) == S_OK)
 631                 {
 632                         //MessageBoxW(0, path, L"SHGetFolderPathW", MB_TOPMOST);
 633                         QDir folderTemp = QDir(QDir::fromNativeSeparators(MUTILS_QSTR(path.data())));
 634                         if(folderTemp.exists())
 635                         {
 636                                 folderPath = folderTemp.canonicalPath();
 637                         }
 638                 }
 639         }
 640
 641         //Update cache
 642         g_known_folders_map->insert(folderId, folderPath);
 643         return g_known_folders_map->operator[](folderId);
 644 }
 645
 646 ///////////////////////////////////////////////////////////////////////////////
 647 // CURRENT DATA & TIME
 648 ///////////////////////////////////////////////////////////////////////////////
 649
 650 QDate MUtils::OS::current_date(void)
 651 {
 652         const DWORD MAX_PROC = 1024;
 653         QScopedArrayPointer<DWORD> processes(new DWORD[MAX_PROC]);
 654         DWORD bytesReturned = 0;
 655
 656         if(!EnumProcesses(processes.data(), sizeof(DWORD) * MAX_PROC, &bytesReturned))
 657         {
 658                 return QDate::currentDate();
 659         }
 660
 661         const DWORD procCount = bytesReturned / sizeof(DWORD);
 662         ULARGE_INTEGER lastStartTime;
 663         memset(&lastStartTime, 0, sizeof(ULARGE_INTEGER));
 664
 665         for(DWORD i = 0; i < procCount; i++)
 666         {
 667                 if(HANDLE hProc = OpenProcess(PROCESS_QUERY_INFORMATION, FALSE, processes[i]))
 668                 {
 669                         FILETIME processTime[4];
 670                         if(GetProcessTimes(hProc, &processTime[0], &processTime[1], &processTime[2], &processTime[3]))
 671                         {
 672                                 ULARGE_INTEGER timeCreation;
 673                                 timeCreation.LowPart  = processTime[0].dwLowDateTime;
 674                                 timeCreation.HighPart = processTime[0].dwHighDateTime;
 675                                 if(timeCreation.QuadPart > lastStartTime.QuadPart)
 676                                 {
 677                                         lastStartTime.QuadPart = timeCreation.QuadPart;
 678                                 }
 679                         }
 680                         CloseHandle(hProc);
 681                 }
 682         }
 683
 684         FILETIME lastStartTime_fileTime;
 685         lastStartTime_fileTime.dwHighDateTime = lastStartTime.HighPart;
 686         lastStartTime_fileTime.dwLowDateTime  = lastStartTime.LowPart;
 687
 688         FILETIME lastStartTime_localTime;
 689         if(!FileTimeToLocalFileTime(&lastStartTime_fileTime, &lastStartTime_localTime))
 690         {
 691                 memcpy(&lastStartTime_localTime, &lastStartTime_fileTime, sizeof(FILETIME));
 692         }
 693
 694         SYSTEMTIME lastStartTime_system;
 695         if(!FileTimeToSystemTime(&lastStartTime_localTime, &lastStartTime_system))
 696         {
 697                 memset(&lastStartTime_system, 0, sizeof(SYSTEMTIME));
 698                 lastStartTime_system.wYear = 1970; lastStartTime_system.wMonth = lastStartTime_system.wDay = 1;
 699         }
 700
 701         const QDate currentDate = QDate::currentDate();
 702         const QDate processDate = QDate(lastStartTime_system.wYear, lastStartTime_system.wMonth, lastStartTime_system.wDay);
 703         return (currentDate >= processDate) ? currentDate : processDate;
 704 }
 705
 706 quint64 MUtils::OS::current_file_time(void)
 707 {
 708         FILETIME fileTime;
 709         GetSystemTimeAsFileTime(&fileTime);
 710
 711         ULARGE_INTEGER temp;
 712         temp.HighPart = fileTime.dwHighDateTime;
 713         temp.LowPart = fileTime.dwLowDateTime;
 714
 715         return temp.QuadPart;
 716 }
 717
 718 ///////////////////////////////////////////////////////////////////////////////
 719 // FILE PATH FROM FD
 720 ///////////////////////////////////////////////////////////////////////////////
 721
 722 typedef DWORD(_stdcall *GetPathNameByHandleFun)(HANDLE hFile, LPWSTR lpszFilePath, DWORD cchFilePath, DWORD dwFlags);
 723
 724 static QReadWriteLock           g_getFilePath_lock;
 725 static QScopedPointer<QLibrary> g_getFilePath_kernel32;
 726 static GetPathNameByHandleFun   g_getFilePath_prt = NULL;
 727
 728 static QString get_file_path_drive_list(void)
 729 {
 730         QString list;
 731         const DWORD len = GetLogicalDriveStringsW(0, NULL);
 732         if (len > 0)
 733         {
 734                 if (wchar_t *const buffer = (wchar_t*) _malloca(sizeof(wchar_t) * len))
 735                 {
 736                         const DWORD ret = GetLogicalDriveStringsW(len, buffer);
 737                         if ((ret > 0) && (ret < len))
 738                         {
 739                                 const wchar_t *ptr = buffer;
 740                                 while (const size_t current_len = wcslen(ptr))
 741                                 {
 742                                         list.append(QChar(*reinterpret_cast<const ushort*>(ptr)));
 743                                         ptr += (current_len + 1);
 744                                 }
 745                         }
 746                         _freea(buffer);
 747                 }
 748         }
 749         return list;
 750 }
 751
 752 static QString &get_file_path_translate(QString &path)
 753 {
 754         static const DWORD BUFSIZE = 4096;
 755         wchar_t buffer[BUFSIZE], drive[3];
 756
 757         const QString driveList = get_file_path_drive_list();
 758         wcscpy_s(drive, 3, L"?:");
 759         for (const wchar_t *current = MUTILS_WCHR(driveList); *current; current++)
 760         {
 761                 drive[0] = (*current);
 762                 if (QueryDosDeviceW(drive, buffer, MAX_PATH))
 763                 {
 764                         const QString prefix = MUTILS_QSTR(buffer);
 765                         if (path.startsWith(prefix, Qt::CaseInsensitive))
 766                         {
 767                                 path.remove(0, prefix.length()).prepend(QLatin1Char(':')).prepend(QChar(*reinterpret_cast<const ushort*>(current)));
 768                                 break;
 769                         }
 770                 }
 771         }
 772
 773         return path;
 774 }
 775
 776 static QString get_file_path_fallback(const HANDLE &hFile)
 777 {
 778         QString filePath;
 779
 780         const HANDLE hFileMap = CreateFileMappingW(hFile, NULL, PAGE_READONLY, 0, 1, NULL);
 781         if (hFileMap)
 782         {
 783                 void* pMem = MapViewOfFile(hFileMap, FILE_MAP_READ, 0, 0, 1);
 784                 if (pMem)
 785                 {
 786                         static const DWORD BUFSIZE = 4096;
 787                         wchar_t buffer[BUFSIZE];
 788                         if (GetMappedFileNameW(GetCurrentProcess(), pMem, buffer, BUFSIZE))
 789                         {
 790                                 filePath = get_file_path_translate(MUTILS_QSTR(buffer));
 791                         }
 792                         UnmapViewOfFile(pMem);
 793                 }
 794                 CloseHandle(hFileMap);
 795         }
 796
 797         return filePath;
 798 }
 799
 800 static bool get_file_path_init()
 801 {
 802         QWriteLocker writeLock(&g_getFilePath_lock);
 803         if (g_getFilePath_prt)
 804         {
 805                 return true; /*already initialized*/
 806         }
 807
 808         if (g_getFilePath_kernel32.isNull())
 809         {
 810                 g_getFilePath_kernel32.reset(new QLibrary("kernel32.dll"));
 811         }
 812
 813         if (!g_getFilePath_kernel32->isLoaded())
 814         {
 815                 if (!g_getFilePath_kernel32->load())
 816                 {
 817                         return false; /*faild to load kernel32.dll*/
 818                 }
 819         }
 820
 821         g_getFilePath_prt = (GetPathNameByHandleFun) g_getFilePath_kernel32->resolve("GetFinalPathNameByHandleW");
 822         return (g_getFilePath_prt != NULL);
 823 }
 824
 825 QString MUtils::OS::get_file_path(const int &fd)
 826 {
 827         if (fd >= 0)
 828         {
 829                 QReadLocker readLock(&g_getFilePath_lock);
 830
 831                 if (!g_getFilePath_prt)
 832                 {
 833                         readLock.unlock();
 834                         if (!get_file_path_init())
 835                         {
 836                                 qWarning("MUtils::OS::get_file_path() --> fallback!");
 837                                 return get_file_path_fallback((HANDLE)_get_osfhandle(fd));
 838                         }
 839                         readLock.relock();
 840                 }
 841
 842                 const HANDLE handle = (HANDLE) _get_osfhandle(fd);
 843                 const DWORD len = g_getFilePath_prt(handle, NULL, 0, FILE_NAME_OPENED);
 844                 if (len > 0)
 845                 {
 846                         wchar_t *const buffer = (wchar_t*) _malloca(sizeof(wchar_t) * len);
 847                         const DWORD ret = g_getFilePath_prt(handle, buffer, len, FILE_NAME_OPENED);
 848                         if ((ret > 0) && (ret < len))
 849                         {
 850                                 const QString path(MUTILS_QSTR(buffer));
 851                                 return path.startsWith(QLatin1String("\\\\?\\")) ? path.mid(4) : path;
 852                         }
 853                 }
 854         }
 855
 856         return QString();
 857 }
 858
 859 ///////////////////////////////////////////////////////////////////////////////
 860 // PROCESS ELEVATION
 861 ///////////////////////////////////////////////////////////////////////////////
 862
 863 static bool user_is_admin_helper(void)
 864 {
 865         HANDLE hToken = NULL;
 866         if(!OpenProcessToken(GetCurrentProcess(), TOKEN_QUERY, &hToken))
 867         {
 868                 return false;
 869         }
 870
 871         DWORD dwSize = 0;
 872         if(!GetTokenInformation(hToken, TokenGroups, NULL, 0, &dwSize))
 873         {
 874                 if(GetLastError() != ERROR_INSUFFICIENT_BUFFER)
 875                 {
 876                         CloseHandle(hToken);
 877                         return false;
 878                 }
 879         }
 880
 881         PTOKEN_GROUPS lpGroups = (PTOKEN_GROUPS) malloc(dwSize);
 882         if(!lpGroups)
 883         {
 884                 CloseHandle(hToken);
 885                 return false;
 886         }
 887
 888         if(!GetTokenInformation(hToken, TokenGroups, lpGroups, dwSize, &dwSize))
 889         {
 890                 free(lpGroups);
 891                 CloseHandle(hToken);
 892                 return false;
 893         }
 894
 895         PSID lpSid = NULL; SID_IDENTIFIER_AUTHORITY Authority = {SECURITY_NT_AUTHORITY};
 896         if(!AllocateAndInitializeSid(&Authority, 2, SECURITY_BUILTIN_DOMAIN_RID, DOMAIN_ALIAS_RID_ADMINS, 0, 0, 0, 0, 0, 0, &lpSid))
 897         {
 898                 free(lpGroups);
 899                 CloseHandle(hToken);
 900                 return false;
 901         }
 902
 903         bool bResult = false;
 904         for(DWORD i = 0; i < lpGroups->GroupCount; i++)
 905         {
 906                 if(EqualSid(lpSid, lpGroups->Groups[i].Sid))
 907                 {
 908                         bResult = true;
 909                         break;
 910                 }
 911         }
 912
 913         FreeSid(lpSid);
 914         free(lpGroups);
 915         CloseHandle(hToken);
 916         return bResult;
 917 }
 918
 919 bool MUtils::OS::is_elevated(bool *bIsUacEnabled)
 920 {
 921         if(bIsUacEnabled)
 922         {
 923                 *bIsUacEnabled = false;
 924         }
 925
 926         bool bIsProcessElevated = false;
 927         HANDLE hToken = NULL;
 928
 929         if(OpenProcessToken(GetCurrentProcess(), TOKEN_QUERY, &hToken))
 930         {
 931                 TOKEN_ELEVATION_TYPE tokenElevationType;
 932                 DWORD returnLength;
 933                 if(GetTokenInformation(hToken, TokenElevationType, &tokenElevationType, sizeof(TOKEN_ELEVATION_TYPE), &returnLength))
 934                 {
 935                         if(returnLength == sizeof(TOKEN_ELEVATION_TYPE))
 936                         {
 937                                 switch(tokenElevationType)
 938                                 {
 939                                 case TokenElevationTypeDefault:
 940                                         qDebug("Process token elevation type: Default -> UAC is disabled.\n");
 941                                         break;
 942                                 case TokenElevationTypeFull:
 943                                         qWarning("Process token elevation type: Full -> potential security risk!\n");
 944                                         bIsProcessElevated = true;
 945                                         if(bIsUacEnabled) *bIsUacEnabled = true;
 946                                         break;
 947                                 case TokenElevationTypeLimited:
 948                                         qDebug("Process token elevation type: Limited -> not elevated.\n");
 949                                         if(bIsUacEnabled) *bIsUacEnabled = true;
 950                                         break;
 951                                 default:
 952                                         qWarning("Unknown tokenElevationType value: %d", tokenElevationType);
 953                                         break;
 954                                 }
 955                         }
 956                         else
 957                         {
 958                                 qWarning("GetTokenInformation() return an unexpected size!");
 959                         }
 960                 }
 961                 CloseHandle(hToken);
 962         }
 963         else
 964         {
 965                 qWarning("Failed to open process token!");
 966         }
 967
 968         return bIsProcessElevated;
 969 }
 970
 971 bool MUtils::OS::user_is_admin(void)
 972 {
 973         bool isAdmin = false;
 974
 975         //Check for process elevation and UAC support first!
 976         if(MUtils::OS::is_elevated(&isAdmin))
 977         {
 978                 qWarning("Process is elevated -> user is admin!");
 979                 return true;
 980         }
 981
 982         //If not elevated and UAC is not available -> user must be in admin group!
 983         if(!isAdmin)
 984         {
 985                 qDebug("UAC is disabled/unavailable -> checking for Administrators group");
 986                 isAdmin = user_is_admin_helper();
 987         }
 988
 989         return isAdmin;
 990 }
 991
 992 ///////////////////////////////////////////////////////////////////////////////
 993 // NETWORK STATE
 994 ///////////////////////////////////////////////////////////////////////////////
 995
 996 int MUtils::OS::network_status(void)
 997 {
 998         DWORD dwFlags;
 999         const BOOL ret = IsNetworkAlive(&dwFlags);
1000         if(GetLastError() == 0)
1001         {
1002                 return (ret != FALSE) ? NETWORK_TYPE_YES : NETWORK_TYPE_NON;
1003         }
1004         return NETWORK_TYPE_ERR;
1005 }
1006
1007 ///////////////////////////////////////////////////////////////////////////////
1008 // MESSAGE HANDLER
1009 ///////////////////////////////////////////////////////////////////////////////
1010
1011 bool MUtils::OS::handle_os_message(const void *const message, long *result)
1012 {
1013         const MSG *const msg = reinterpret_cast<const MSG*>(message);
1014
1015         switch(msg->message)
1016         {
1017         case WM_QUERYENDSESSION:
1018                 qWarning("WM_QUERYENDSESSION message received!");
1019                 *result = MUtils::GUI::broadcast(MUtils::GUI::USER_EVENT_QUERYENDSESSION, false) ? TRUE : FALSE;
1020                 return true;
1021         case WM_ENDSESSION:
1022                 qWarning("WM_ENDSESSION message received!");
1023                 if(msg->wParam == TRUE)
1024                 {
1025                         MUtils::GUI::broadcast(MUtils::GUI::USER_EVENT_ENDSESSION, false);
1026                         MUtils::GUI::force_quit();
1027                         exit(1);
1028                 }
1029                 *result = 0;
1030                 return true;
1031         default:
1032                 /*ignore this message and let Qt handle it*/
1033                 return false;
1034         }
1035 }
1036
1037 ///////////////////////////////////////////////////////////////////////////////
1038 // SLEEP
1039 ///////////////////////////////////////////////////////////////////////////////
1040
1041 void MUtils::OS::sleep_ms(const size_t &duration)
1042 {
1043         Sleep((DWORD) duration);
1044 }
1045
1046 ///////////////////////////////////////////////////////////////////////////////
1047 // EXECUTABLE CHECK
1048 ///////////////////////////////////////////////////////////////////////////////
1049
1050 bool MUtils::OS::is_executable_file(const QString &path)
1051 {
1052         bool bIsExecutable = false;
1053         DWORD binaryType;
1054         if(GetBinaryType(MUTILS_WCHR(QDir::toNativeSeparators(path)), &binaryType))
1055         {
1056                 bIsExecutable = (binaryType == SCS_32BIT_BINARY || binaryType == SCS_64BIT_BINARY);
1057         }
1058         return bIsExecutable;
1059 }
1060
1061 ///////////////////////////////////////////////////////////////////////////////
1062 // HIBERNATION / SHUTDOWN
1063 ///////////////////////////////////////////////////////////////////////////////
1064
1065 bool MUtils::OS::is_hibernation_supported(void)
1066 {
1067         bool hibernationSupported = false;
1068
1069         SYSTEM_POWER_CAPABILITIES pwrCaps;
1070         SecureZeroMemory(&pwrCaps, sizeof(SYSTEM_POWER_CAPABILITIES));
1071
1072         if(GetPwrCapabilities(&pwrCaps))
1073         {
1074                 hibernationSupported = pwrCaps.SystemS4 && pwrCaps.HiberFilePresent;
1075         }
1076
1077         return hibernationSupported;
1078 }
1079
1080 bool MUtils::OS::shutdown_computer(const QString &message, const unsigned long timeout, const bool forceShutdown, const bool hibernate)
1081 {
1082         HANDLE hToken = NULL;
1083
1084         if(OpenProcessToken(GetCurrentProcess(), TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken))
1085         {
1086                 TOKEN_PRIVILEGES privileges;
1087                 memset(&privileges, 0, sizeof(TOKEN_PRIVILEGES));
1088                 privileges.PrivilegeCount = 1;
1089                 privileges.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
1090
1091                 if(LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME, &privileges.Privileges[0].Luid))
1092                 {
1093                         if(AdjustTokenPrivileges(hToken, FALSE, &privileges, NULL, NULL, NULL))
1094                         {
1095                                 if(hibernate)
1096                                 {
1097                                         if(SetSuspendState(TRUE, TRUE, TRUE))
1098                                         {
1099                                                 return true;
1100                                         }
1101                                 }
1102                                 const DWORD reason = SHTDN_REASON_MAJOR_APPLICATION | SHTDN_REASON_FLAG_PLANNED;
1103                                 return InitiateSystemShutdownEx(NULL, const_cast<wchar_t*>(MUTILS_WCHR(message)), timeout, forceShutdown ? TRUE : FALSE, FALSE, reason);
1104                         }
1105                 }
1106         }
1107
1108         return false;
1109 }
1110
1111 ///////////////////////////////////////////////////////////////////////////////
1112 // FREE DISKSPACE
1113 ///////////////////////////////////////////////////////////////////////////////
1114
1115 bool MUtils::OS::free_diskspace(const QString &path, quint64 &freeSpace)
1116 {
1117         ULARGE_INTEGER freeBytesAvailable, totalNumberOfBytes, totalNumberOfFreeBytes;
1118         if(GetDiskFreeSpaceExW(reinterpret_cast<const wchar_t*>(QDir::toNativeSeparators(path).utf16()), &freeBytesAvailable, &totalNumberOfBytes, &totalNumberOfFreeBytes))
1119         {
1120                 freeSpace = freeBytesAvailable.QuadPart;
1121                 return true;;
1122         }
1123
1124         freeSpace = -1;
1125         return false;
1126 }
1127
1128 ///////////////////////////////////////////////////////////////////////////////
1129 // SHELL OPEN
1130 ///////////////////////////////////////////////////////////////////////////////
1131
1132 bool MUtils::OS::shell_open(const QWidget *parent, const QString &url, const QString &parameters, const QString &directory, const bool explore)
1133 {
1134         return ((int) ShellExecuteW((parent ? parent->winId() : NULL), (explore ? L"explore" : L"open"), MUTILS_WCHR(url), ((!parameters.isEmpty()) ? MUTILS_WCHR(parameters) : NULL), ((!directory.isEmpty()) ? MUTILS_WCHR(directory) : NULL), SW_SHOW)) > 32;
1135 }
1136
1137 bool MUtils::OS::shell_open(const QWidget *parent, const QString &url, const bool explore)
1138 {
1139         return shell_open(parent, url, QString(), QString(), explore);
1140 }
1141
1142 ///////////////////////////////////////////////////////////////////////////////
1143 // OPEN MEDIA FILE
1144 ///////////////////////////////////////////////////////////////////////////////
1145
1146 bool MUtils::OS::open_media_file(const QString &mediaFilePath)
1147 {
1148         const static wchar_t *registryPrefix[2] = { L"SOFTWARE\\", L"SOFTWARE\\Wow6432Node\\" };
1149         const static wchar_t *registryKeys[3] =
1150         {
1151                 L"Microsoft\\Windows\\CurrentVersion\\Uninstall\\{97D341C8-B0D1-4E4A-A49A-C30B52F168E9}",
1152                 L"Microsoft\\Windows\\CurrentVersion\\Uninstall\\{DB9E4EAB-2717-499F-8D56-4CC8A644AB60}",
1153                 L"foobar2000"
1154         };
1155         const static wchar_t *appNames[4] = { L"smplayer_portable.exe", L"smplayer.exe", L"MPUI.exe", L"foobar2000.exe" };
1156         const static wchar_t *valueNames[2] = { L"InstallLocation", L"InstallDir" };
1157
1158         for(size_t i = 0; i < 3; i++)
1159         {
1160                 for(size_t j = 0; j < 2; j++)
1161                 {
1162                         QString mplayerPath;
1163                         HKEY registryKeyHandle = NULL;
1164
1165                         const QString currentKey = MUTILS_QSTR(registryPrefix[j]).append(MUTILS_QSTR(registryKeys[i]));
1166                         if(RegOpenKeyExW(HKEY_LOCAL_MACHINE, MUTILS_WCHR(currentKey), 0, KEY_READ, &registryKeyHandle) == ERROR_SUCCESS)
1167                         {
1168                                 for(size_t k = 0; k < 2; k++)
1169                                 {
1170                                         wchar_t Buffer[4096];
1171                                         DWORD BuffSize = sizeof(wchar_t*) * 4096;
1172                                         DWORD DataType = REG_NONE;
1173                                         if(RegQueryValueExW(registryKeyHandle, valueNames[k], 0, &DataType, reinterpret_cast<BYTE*>(Buffer), &BuffSize) == ERROR_SUCCESS)
1174                                         {
1175                                                 if((DataType == REG_SZ) || (DataType == REG_EXPAND_SZ) || (DataType == REG_LINK))
1176                                                 {
1177                                                         mplayerPath = MUTILS_QSTR(Buffer);
1178                                                         break;
1179                                                 }
1180                                         }
1181                                 }
1182                                 RegCloseKey(registryKeyHandle);
1183                         }
1184
1185                         if(!mplayerPath.isEmpty())
1186                         {
1187                                 QDir mplayerDir(mplayerPath);
1188                                 if(mplayerDir.exists())
1189                                 {
1190                                         for(size_t k = 0; k < 4; k++)
1191                                         {
1192                                                 if(mplayerDir.exists(MUTILS_QSTR(appNames[k])))
1193                                                 {
1194                                                         qDebug("Player found at:\n%s\n", MUTILS_UTF8(mplayerDir.absoluteFilePath(MUTILS_QSTR(appNames[k]))));
1195                                                         QProcess::startDetached(mplayerDir.absoluteFilePath(MUTILS_QSTR(appNames[k])), QStringList() << QDir::toNativeSeparators(mediaFilePath));
1196                                                         return true;
1197                                                 }
1198                                         }
1199                                 }
1200                         }
1201                 }
1202         }
1203         return false;
1204 }
1205
1206 ///////////////////////////////////////////////////////////////////////////////
1207 // DEBUGGER CHECK
1208 ///////////////////////////////////////////////////////////////////////////////
1209
1210 static bool change_process_priority_helper(const HANDLE hProcess, const int priority)
1211 {
1212         bool ok = false;
1213
1214         switch(qBound(-2, priority, 2))
1215         {
1216         case 2:
1217                 ok = (SetPriorityClass(hProcess, HIGH_PRIORITY_CLASS) == TRUE);
1218                 break;
1219         case 1:
1220                 if(!(ok = (SetPriorityClass(hProcess, ABOVE_NORMAL_PRIORITY_CLASS) == TRUE)))
1221                 {
1222                         ok = (SetPriorityClass(hProcess, HIGH_PRIORITY_CLASS) == TRUE);
1223                 }
1224                 break;
1225         case 0:
1226                 ok = (SetPriorityClass(hProcess, NORMAL_PRIORITY_CLASS) == TRUE);
1227                 break;
1228         case -1:
1229                 if(!(ok = (SetPriorityClass(hProcess, BELOW_NORMAL_PRIORITY_CLASS) == TRUE)))
1230                 {
1231                         ok = (SetPriorityClass(hProcess, IDLE_PRIORITY_CLASS) == TRUE);
1232                 }
1233                 break;
1234         case -2:
1235                 ok = (SetPriorityClass(hProcess, IDLE_PRIORITY_CLASS) == TRUE);
1236                 break;
1237         }
1238
1239         return ok;
1240 }
1241
1242 bool MUtils::OS::change_process_priority(const int priority)
1243 {
1244         return change_process_priority_helper(GetCurrentProcess(), priority);
1245 }
1246
1247 bool MUtils::OS::change_process_priority(const QProcess *proc, const int priority)
1248 {
1249         if(Q_PID qPid = proc->pid())
1250         {
1251                 return change_process_priority_helper(qPid->hProcess, priority);
1252         }
1253         else
1254         {
1255                 return false;
1256         }
1257 }
1258
1259 ///////////////////////////////////////////////////////////////////////////////
1260 // PROCESS ID
1261 ///////////////////////////////////////////////////////////////////////////////
1262
1263 quint32 MUtils::OS::process_id(const QProcess *const proc)
1264 {
1265         PROCESS_INFORMATION *procInf = proc->pid();
1266         return (procInf) ? procInf->dwProcessId : NULL;
1267 }
1268
1269 ///////////////////////////////////////////////////////////////////////////////
1270 // PROCESS SUSPEND/RESUME
1271 ///////////////////////////////////////////////////////////////////////////////
1272
1273 bool MUtils::OS::suspend_process(const QProcess *proc, const bool suspend)
1274 {
1275         if(Q_PID pid = proc->pid())
1276         {
1277                 if(suspend)
1278                 {
1279                         return (SuspendThread(pid->hThread) != ((DWORD) -1));
1280                 }
1281                 else
1282                 {
1283                         return (ResumeThread(pid->hThread)  != ((DWORD) -1));
1284                 }
1285         }
1286         else
1287         {
1288                 return false;
1289         }
1290 }
1291
1292 ///////////////////////////////////////////////////////////////////////////////
1293 // SYSTEM TIMER
1294 ///////////////////////////////////////////////////////////////////////////////
1295
1296 bool MUtils::OS::setup_timer_resolution(const quint32 &interval)
1297 {
1298         return timeBeginPeriod(interval) == TIMERR_NOERROR;
1299 }
1300
1301 bool MUtils::OS::reset_timer_resolution(const quint32 &interval)
1302 {
1303         return timeEndPeriod(interval) == TIMERR_NOERROR;
1304 }
1305
1306 ///////////////////////////////////////////////////////////////////////////////
1307 // SET FILE TIME
1308 ///////////////////////////////////////////////////////////////////////////////
1309
1310 static QScopedPointer<QDateTime> s_epoch;
1311 static QReadWriteLock            s_epochLock;
1312
1313 static const QDateTime *get_epoch(void)
1314 {
1315         QReadLocker rdLock(&s_epochLock);
1316
1317         if (s_epoch.isNull())
1318         {
1319                 rdLock.unlock();
1320                 QWriteLocker wrLock(&s_epochLock);
1321                 if (s_epoch.isNull())
1322                 {
1323                         s_epoch.reset(new QDateTime(QDate(1601, 1, 1), QTime(0, 0, 0, 0), Qt::UTC));
1324                 }
1325                 wrLock.unlock();
1326                 rdLock.relock();
1327         }
1328
1329         return s_epoch.data();
1330 }
1331
1332 static FILETIME *qt_time_to_file_time(FILETIME *const fileTime, const QDateTime &dateTime)
1333 {
1334         memset(fileTime, 0, sizeof(FILETIME));
1335
1336         if (const QDateTime *const epoch = get_epoch())
1337         {
1338                 const qint64 msecs = epoch->msecsTo(dateTime);
1339                 if (msecs > 0)
1340                 {
1341                         const quint64 ticks = 10000U * quint64(msecs);
1342                         fileTime->dwHighDateTime = ((ticks >> 32) & 0xFFFFFFFF);
1343                         fileTime->dwLowDateTime = (ticks & 0xFFFFFFFF);
1344                         return fileTime;
1345                 }
1346         }
1347
1348         return NULL;
1349 }
1350
1351 static bool set_file_time(const HANDLE hFile, const QDateTime &created, const QDateTime &lastMod, const QDateTime &lastAcc)
1352 {
1353         FILETIME ftCreated, ftLastMod, ftLastAcc;
1354
1355         FILETIME *const pCreated = created.isValid() ? qt_time_to_file_time(&ftCreated, created) : NULL;
1356         FILETIME *const pLastMod = lastMod.isValid() ? qt_time_to_file_time(&ftLastMod, lastMod) : NULL;
1357         FILETIME *const pLastAcc = lastAcc.isValid() ? qt_time_to_file_time(&ftLastAcc, lastAcc) : NULL;
1358
1359         if (pCreated || pLastMod || pLastAcc)
1360         {
1361                 return (SetFileTime(hFile, pCreated, pLastAcc, pLastMod) != FALSE);
1362         }
1363
1364         return false;
1365 }
1366
1367 bool MUtils::OS::set_file_time(const QFile &file, const QDateTime &created, const QDateTime &lastMod, const QDateTime &lastAcc)
1368 {
1369         const int fd = file.handle();
1370         if (fd >= 0)
1371         {
1372                 return set_file_time((HANDLE)_get_osfhandle(fd), created, lastMod, lastAcc);
1373         }
1374         return false;
1375 }
1376
1377 bool MUtils::OS::set_file_time(const QString &path, const QDateTime &created, const QDateTime &lastMod, const QDateTime &lastAcc)
1378 {
1379         const HANDLE hFile = CreateFileW(MUTILS_WCHR(path), FILE_WRITE_ATTRIBUTES, FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, 0);
1380         bool okay = false;
1381         if ((hFile != NULL) && (hFile != INVALID_HANDLE_VALUE))
1382         {
1383                 okay = set_file_time(hFile, created, lastMod, lastAcc);
1384                 CloseHandle(hFile);
1385         }
1386         return okay;
1387 }
1388
1389 ///////////////////////////////////////////////////////////////////////////////
1390 // CHECK KEY STATE
1391 ///////////////////////////////////////////////////////////////////////////////
1392
1393 bool MUtils::OS::check_key_state_esc(void)
1394 {
1395         return (GetAsyncKeyState(VK_ESCAPE) & 0x0001) != 0;
1396 }
1397
1398 ///////////////////////////////////////////////////////////////////////////////
1399 // SHELL CHANGE NOTIFICATION
1400 ///////////////////////////////////////////////////////////////////////////////
1401
1402 void MUtils::OS::shell_change_notification(void)
1403 {
1404         SHChangeNotify(SHCNE_ASSOCCHANGED, SHCNF_IDLIST, NULL, NULL);
1405 }
1406
1407 ///////////////////////////////////////////////////////////////////////////////
1408 // WOW64 REDIRECTION
1409 ///////////////////////////////////////////////////////////////////////////////
1410
1411 typedef BOOL (_stdcall *Wow64DisableWow64FsRedirectionFun)(void *OldValue);
1412 typedef BOOL (_stdcall *Wow64RevertWow64FsRedirectionFun )(void *OldValue);
1413
1414 static QReadWriteLock                    g_wow64redir_lock;
1415 static QScopedPointer<QLibrary>          g_wow64redir_kernel32;
1416 static Wow64DisableWow64FsRedirectionFun g_wow64redir_disable = NULL;
1417 static Wow64RevertWow64FsRedirectionFun  g_wow64redir_revert  = NULL;
1418
1419 static bool wow64fsredir_init()
1420 {
1421         QWriteLocker writeLock(&g_wow64redir_lock);
1422         if(g_wow64redir_disable && g_wow64redir_revert)
1423         {
1424                 return true; /*already initialized*/
1425         }
1426
1427         if(g_wow64redir_kernel32.isNull())
1428         {
1429                 g_wow64redir_kernel32.reset(new QLibrary("kernel32.dll"));
1430         }
1431
1432         if(!g_wow64redir_kernel32->isLoaded())
1433         {
1434                 if(!g_wow64redir_kernel32->load())
1435                 {
1436                         return false; /*faild to load kernel32.dll*/
1437                 }
1438         }
1439
1440         g_wow64redir_disable = (Wow64DisableWow64FsRedirectionFun) g_wow64redir_kernel32->resolve("Wow64DisableWow64FsRedirection");
1441         g_wow64redir_revert  = (Wow64RevertWow64FsRedirectionFun)  g_wow64redir_kernel32->resolve("Wow64RevertWow64FsRedirection");
1442
1443         return (g_wow64redir_disable && g_wow64redir_revert);
1444 }
1445
1446 #define WOW64FSREDIR_INIT(RDLOCK) do \
1447 { \
1448         while(!(g_wow64redir_disable && g_wow64redir_revert)) \
1449         { \
1450                 (RDLOCK).unlock(); \
1451                 if(!wow64fsredir_init()) return false; \
1452                 (RDLOCK).relock(); \
1453         } \
1454 } \
1455 while(0)
1456
1457 bool MUtils::OS::wow64fsredir_disable(void *oldValue)
1458 {
1459         QReadLocker readLock(&g_wow64redir_lock);
1460         WOW64FSREDIR_INIT(readLock);
1461         if(g_wow64redir_disable(oldValue))
1462         {
1463                 return true;
1464         }
1465         return false;
1466 }
1467
1468 bool MUtils::OS::wow64fsredir_revert(void *oldValue)
1469 {
1470         QReadLocker readLock(&g_wow64redir_lock);
1471         WOW64FSREDIR_INIT(readLock);
1472         if(g_wow64redir_revert(oldValue))
1473         {
1474                 return true;
1475         }
1476         return false;
1477 }
1478
1479 ///////////////////////////////////////////////////////////////////////////////
1480 // DEBUGGER CHECK
1481 ///////////////////////////////////////////////////////////////////////////////
1482
1483 #if (!(MUTILS_DEBUG))
1484 static __forceinline bool is_debugger_present(void)
1485 {
1486         __try
1487         {
1488                 CloseHandle((HANDLE)((DWORD_PTR)-3));
1489         }
1490         __except(1)
1491         {
1492                 return true;
1493         }
1494
1495         BOOL bHaveDebugger = FALSE;
1496         if(CheckRemoteDebuggerPresent(GetCurrentProcess(), &bHaveDebugger))
1497         {
1498                 if(bHaveDebugger) return true;
1499         }
1500
1501         return IsDebuggerPresent();
1502 }
1503 static __forceinline bool check_debugger_helper(void)
1504 {
1505         if(is_debugger_present())
1506         {
1507                 MUtils::OS::fatal_exit(L"Not a debug build. Please unload debugger and try again!");
1508                 return true;
1509         }
1510         return false;
1511 }
1512 #else
1513 #define check_debugger_helper() (false)
1514 #endif
1515
1516 void MUtils::OS::check_debugger(void)
1517 {
1518         check_debugger_helper();
1519 }
1520
1521 static volatile bool g_debug_check = check_debugger_helper();
1522
1523 ///////////////////////////////////////////////////////////////////////////////
1524 // FATAL EXIT
1525 ///////////////////////////////////////////////////////////////////////////////
1526
1527 static MUtils::Internal::CriticalSection g_fatal_exit_lock;
1528 static volatile bool g_fatal_exit_flag = true;
1529
1530 static DWORD WINAPI fatal_exit_helper(LPVOID lpParameter)
1531 {
1532         MUtils::OS::system_message_err(L"GURU MEDITATION", (LPWSTR) lpParameter);
1533         return 0;
1534 }
1535
1536 void MUtils::OS::fatal_exit(const wchar_t* const errorMessage)
1537 {
1538         g_fatal_exit_lock.enter();
1539
1540         if(!g_fatal_exit_flag)
1541         {
1542                 return; /*prevent recursive invocation*/
1543         }
1544
1545         g_fatal_exit_flag = false;
1546
1547         if(g_main_thread_id != GetCurrentThreadId())
1548         {
1549                 if(HANDLE hThreadMain = OpenThread(THREAD_SUSPEND_RESUME, FALSE, g_main_thread_id))
1550                 {
1551                         SuspendThread(hThreadMain); /*stop main thread*/
1552                 }
1553         }
1554
1555         if(HANDLE hThread = CreateThread(NULL, 0, fatal_exit_helper, (LPVOID) errorMessage, 0, NULL))
1556         {
1557                 WaitForSingleObject(hThread, INFINITE);
1558         }
1559
1560         for(;;)
1561         {
1562                 TerminateProcess(GetCurrentProcess(), 666);
1563         }
1564 }
1565
1566 ///////////////////////////////////////////////////////////////////////////////