src/OSSupport_Win32.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // MuldeR's Utilities for Qt
   3 // Copyright (C) 2004-2016 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 #include "Utils_Win32.h"
  44
  45 //Qt
  46 #include <QMap>
  47 #include <QReadWriteLock>
  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         void *const ptr = MUtils::Win32Utils::resolve<void*>(QLatin1String("ntdll"), QLatin1String("wine_get_version"));
 490         return (ptr != NULL);
 491 }
 492
 493 const bool &MUtils::OS::running_on_wine(void)
 494 {
 495         QReadLocker readLock(&g_wine_lock);
 496
 497         //Already initialized?
 498         if(g_wine_initialized)
 499         {
 500                 return g_wine_deteced;
 501         }
 502
 503         readLock.unlock();
 504         QWriteLocker writeLock(&g_wine_lock);
 505
 506         //Initialized now?
 507         if(g_wine_initialized)
 508         {
 509                 return g_wine_deteced;
 510         }
 511
 512         //Try to detect Wine
 513         g_wine_deteced = detect_wine();
 514         g_wine_initialized = true;
 515
 516         return g_wine_deteced;
 517 }
 518
 519 ///////////////////////////////////////////////////////////////////////////////
 520 // KNWON FOLDERS
 521 ///////////////////////////////////////////////////////////////////////////////
 522
 523 typedef QMap<size_t, QString> KFMap;
 524 typedef HRESULT (WINAPI *SHGetKnownFolderPath_t)(const GUID &rfid, DWORD dwFlags, HANDLE hToken, PWSTR *ppszPath);
 525 typedef HRESULT (WINAPI *SHGetFolderPath_t)     (HWND hwndOwner, int nFolder, HANDLE hToken, DWORD dwFlags, LPWSTR pszPath);
 526
 527 static QScopedPointer<KFMap>  g_known_folders_map;
 528 static QReadWriteLock         g_known_folders_lock;
 529
 530 const QString &MUtils::OS::known_folder(known_folder_t folder_id)
 531 {
 532         typedef enum { KF_FLAG_CREATE = 0x00008000 } kf_flags_t;
 533
 534         struct
 535         {
 536                 const int csidl;
 537                 const GUID guid;
 538         }
 539         static s_folders[] =
 540         {
 541                 { 0x001c, {0xF1B32785,0x6FBA,0x4FCF,{0x9D,0x55,0x7B,0x8E,0x7F,0x15,0x70,0x91}} },  //CSIDL_LOCAL_APPDATA
 542                 { 0x0026, {0x905e63b6,0xc1bf,0x494e,{0xb2,0x9c,0x65,0xb7,0x32,0xd3,0xd2,0x1a}} },  //CSIDL_PROGRAM_FILES
 543                 { 0x0024, {0xF38BF404,0x1D43,0x42F2,{0x93,0x05,0x67,0xDE,0x0B,0x28,0xFC,0x23}} },  //CSIDL_WINDOWS_FOLDER
 544                 { 0x0025, {0x1AC14E77,0x02E7,0x4E5D,{0xB7,0x44,0x2E,0xB1,0xAE,0x51,0x98,0xB7}} },  //CSIDL_SYSTEM_FOLDER
 545         };
 546
 547         size_t folderId = size_t(-1);
 548
 549         switch(folder_id)
 550         {
 551                 case FOLDER_LOCALAPPDATA: folderId = 0; break;
 552                 case FOLDER_PROGRAMFILES: folderId = 1; break;
 553                 case FOLDER_SYSTROOT_DIR: folderId = 2; break;
 554                 case FOLDER_SYSTEMFOLDER: folderId = 3; break;
 555         }
 556
 557         if(folderId == size_t(-1))
 558         {
 559                 qWarning("Invalid 'known' folder was requested!");
 560                 return *reinterpret_cast<QString*>(NULL);
 561         }
 562
 563         QReadLocker readLock(&g_known_folders_lock);
 564
 565         //Already in cache?
 566         if(!g_known_folders_map.isNull())
 567         {
 568                 if(g_known_folders_map->contains(folderId))
 569                 {
 570                         return g_known_folders_map->operator[](folderId);
 571                 }
 572         }
 573
 574         //Obtain write lock to initialize
 575         readLock.unlock();
 576         QWriteLocker writeLock(&g_known_folders_lock);
 577
 578         //Still not in cache?
 579         if(!g_known_folders_map.isNull())
 580         {
 581                 if(g_known_folders_map->contains(folderId))
 582                 {
 583                         return g_known_folders_map->operator[](folderId);
 584                 }
 585         }
 586
 587         //Initialize on first call
 588         if(g_known_folders_map.isNull())
 589         {
 590                 g_known_folders_map.reset(new QMap<size_t, QString>());
 591         }
 592
 593         QString folderPath;
 594
 595         //Now try to get the folder path!
 596         if(const SHGetKnownFolderPath_t known_folders_fpGetKnownFolderPath = MUtils::Win32Utils::resolve<SHGetKnownFolderPath_t>(QLatin1String("shell32"), QLatin1String("SHGetKnownFolderPath")))
 597         {
 598                 WCHAR *path = NULL;
 599                 if(known_folders_fpGetKnownFolderPath(s_folders[folderId].guid, KF_FLAG_CREATE, NULL, &path) == S_OK)
 600                 {
 601                         //MessageBoxW(0, path, L"SHGetKnownFolderPath", MB_TOPMOST);
 602                         QDir folderTemp = QDir(QDir::fromNativeSeparators(MUTILS_QSTR(path)));
 603                         if(folderTemp.exists())
 604                         {
 605                                 folderPath = folderTemp.canonicalPath();
 606                         }
 607                         CoTaskMemFree(path);
 608                 }
 609         }
 610         else if(const SHGetFolderPath_t known_folders_fpGetFolderPath = MUtils::Win32Utils::resolve<SHGetFolderPath_t>(QLatin1String("shell32"), QLatin1String("SHGetFolderPathW")))
 611         {
 612                 QScopedArrayPointer<WCHAR> path(new WCHAR[4096]);
 613                 if(known_folders_fpGetFolderPath(NULL, s_folders[folderId].csidl | CSIDL_FLAG_CREATE, NULL, NULL, path.data()) == S_OK)
 614                 {
 615                         //MessageBoxW(0, path, L"SHGetFolderPathW", MB_TOPMOST);
 616                         QDir folderTemp = QDir(QDir::fromNativeSeparators(MUTILS_QSTR(path.data())));
 617                         if(folderTemp.exists())
 618                         {
 619                                 folderPath = folderTemp.canonicalPath();
 620                         }
 621                 }
 622         }
 623
 624         //Update cache
 625         g_known_folders_map->insert(folderId, folderPath);
 626         return g_known_folders_map->operator[](folderId);
 627 }
 628
 629 ///////////////////////////////////////////////////////////////////////////////
 630 // CURRENT DATA & TIME
 631 ///////////////////////////////////////////////////////////////////////////////
 632
 633 QDate MUtils::OS::current_date(void)
 634 {
 635         const DWORD MAX_PROC = 1024;
 636         QScopedArrayPointer<DWORD> processes(new DWORD[MAX_PROC]);
 637         DWORD bytesReturned = 0;
 638
 639         if(!EnumProcesses(processes.data(), sizeof(DWORD) * MAX_PROC, &bytesReturned))
 640         {
 641                 return QDate::currentDate();
 642         }
 643
 644         const DWORD procCount = bytesReturned / sizeof(DWORD);
 645         ULARGE_INTEGER lastStartTime;
 646         memset(&lastStartTime, 0, sizeof(ULARGE_INTEGER));
 647
 648         for(DWORD i = 0; i < procCount; i++)
 649         {
 650                 if(HANDLE hProc = OpenProcess(PROCESS_QUERY_INFORMATION, FALSE, processes[i]))
 651                 {
 652                         FILETIME processTime[4];
 653                         if(GetProcessTimes(hProc, &processTime[0], &processTime[1], &processTime[2], &processTime[3]))
 654                         {
 655                                 ULARGE_INTEGER timeCreation;
 656                                 timeCreation.LowPart  = processTime[0].dwLowDateTime;
 657                                 timeCreation.HighPart = processTime[0].dwHighDateTime;
 658                                 if(timeCreation.QuadPart > lastStartTime.QuadPart)
 659                                 {
 660                                         lastStartTime.QuadPart = timeCreation.QuadPart;
 661                                 }
 662                         }
 663                         CloseHandle(hProc);
 664                 }
 665         }
 666
 667         FILETIME lastStartTime_fileTime;
 668         lastStartTime_fileTime.dwHighDateTime = lastStartTime.HighPart;
 669         lastStartTime_fileTime.dwLowDateTime  = lastStartTime.LowPart;
 670
 671         FILETIME lastStartTime_localTime;
 672         if(!FileTimeToLocalFileTime(&lastStartTime_fileTime, &lastStartTime_localTime))
 673         {
 674                 memcpy(&lastStartTime_localTime, &lastStartTime_fileTime, sizeof(FILETIME));
 675         }
 676
 677         SYSTEMTIME lastStartTime_system;
 678         if(!FileTimeToSystemTime(&lastStartTime_localTime, &lastStartTime_system))
 679         {
 680                 memset(&lastStartTime_system, 0, sizeof(SYSTEMTIME));
 681                 lastStartTime_system.wYear = 1970; lastStartTime_system.wMonth = lastStartTime_system.wDay = 1;
 682         }
 683
 684         const QDate currentDate = QDate::currentDate();
 685         const QDate processDate = QDate(lastStartTime_system.wYear, lastStartTime_system.wMonth, lastStartTime_system.wDay);
 686         return (currentDate >= processDate) ? currentDate : processDate;
 687 }
 688
 689 quint64 MUtils::OS::current_file_time(void)
 690 {
 691         FILETIME fileTime;
 692         GetSystemTimeAsFileTime(&fileTime);
 693
 694         ULARGE_INTEGER temp;
 695         temp.HighPart = fileTime.dwHighDateTime;
 696         temp.LowPart = fileTime.dwLowDateTime;
 697
 698         return temp.QuadPart;
 699 }
 700
 701 ///////////////////////////////////////////////////////////////////////////////
 702 // FILE PATH FROM FD
 703 ///////////////////////////////////////////////////////////////////////////////
 704
 705 typedef DWORD(_stdcall *GetPathNameByHandleFun)(HANDLE hFile, LPWSTR lpszFilePath, DWORD cchFilePath, DWORD dwFlags);
 706
 707 static QString get_file_path_drive_list(void)
 708 {
 709         QString list;
 710         const DWORD len = GetLogicalDriveStringsW(0, NULL);
 711         if (len > 0)
 712         {
 713                 if (wchar_t *const buffer = (wchar_t*) _malloca(sizeof(wchar_t) * len))
 714                 {
 715                         const DWORD ret = GetLogicalDriveStringsW(len, buffer);
 716                         if ((ret > 0) && (ret < len))
 717                         {
 718                                 const wchar_t *ptr = buffer;
 719                                 while (const size_t current_len = wcslen(ptr))
 720                                 {
 721                                         list.append(QChar(*reinterpret_cast<const ushort*>(ptr)));
 722                                         ptr += (current_len + 1);
 723                                 }
 724                         }
 725                         _freea(buffer);
 726                 }
 727         }
 728         return list;
 729 }
 730
 731 static void get_file_path_translate(QString &path)
 732 {
 733         static const DWORD BUFSIZE = 2048;
 734         wchar_t buffer[BUFSIZE], drive[3];
 735
 736         const QString driveList = get_file_path_drive_list();
 737         wcscpy_s(drive, 3, L"?:");
 738         for (const wchar_t *current = MUTILS_WCHR(driveList); *current; current++)
 739         {
 740                 drive[0] = (*current);
 741                 if (QueryDosDeviceW(drive, buffer, MAX_PATH))
 742                 {
 743                         const QString prefix = MUTILS_QSTR(buffer);
 744                         if (path.startsWith(prefix, Qt::CaseInsensitive))
 745                         {
 746                                 path.remove(0, prefix.length()).prepend(QLatin1Char(':')).prepend(QChar(*reinterpret_cast<const ushort*>(current)));
 747                                 break;
 748                         }
 749                 }
 750         }
 751 }
 752
 753 static QString get_file_path_fallback(const HANDLE &hFile)
 754 {
 755         QString filePath;
 756
 757         const HANDLE hFileMap = CreateFileMappingW(hFile, NULL, PAGE_READONLY, 0, 1, NULL);
 758         if (hFileMap)
 759         {
 760                 void *const pMem = MapViewOfFile(hFileMap, FILE_MAP_READ, 0, 0, 1);
 761                 if (pMem)
 762                 {
 763                         static const size_t BUFFSIZE = 2048;
 764                         wchar_t buffer[BUFFSIZE];
 765                         if (GetMappedFileNameW(GetCurrentProcess(), pMem, buffer, BUFFSIZE) > 0)
 766                         {
 767                                 filePath = MUTILS_QSTR(buffer);
 768                         }
 769                         UnmapViewOfFile(pMem);
 770                 }
 771                 CloseHandle(hFileMap);
 772         }
 773
 774         if (!filePath.isEmpty())
 775         {
 776                 get_file_path_translate(filePath);
 777         }
 778
 779         return filePath;
 780 }
 781
 782 QString MUtils::OS::get_file_path(const int &fd)
 783 {
 784         if (fd >= 0)
 785         {
 786                 const GetPathNameByHandleFun getPathNameByHandleFun = MUtils::Win32Utils::resolve<GetPathNameByHandleFun>(QLatin1String("kernel32"), QLatin1String("GetFinalPathNameByHandleW"));
 787                 if (!getPathNameByHandleFun)
 788                 {
 789                         return get_file_path_fallback((HANDLE)_get_osfhandle(fd));
 790                 }
 791
 792                 const HANDLE handle = (HANDLE) _get_osfhandle(fd);
 793                 const DWORD len = getPathNameByHandleFun(handle, NULL, 0, FILE_NAME_OPENED);
 794                 if (len > 0)
 795                 {
 796                         if (wchar_t *const buffer = (wchar_t*)_malloca(sizeof(wchar_t) * len))
 797                         {
 798                                 const DWORD ret = getPathNameByHandleFun(handle, buffer, len, FILE_NAME_OPENED);
 799                                 if ((ret > 0) && (ret < len))
 800                                 {
 801                                         const QString path(MUTILS_QSTR(buffer));
 802                                         return path.startsWith(QLatin1String("\\\\?\\")) ? path.mid(4) : path;
 803                                 }
 804                                 _freea(buffer);
 805                         }
 806                 }
 807         }
 808
 809         return QString();
 810 }
 811
 812 ///////////////////////////////////////////////////////////////////////////////
 813 // PROCESS ELEVATION
 814 ///////////////////////////////////////////////////////////////////////////////
 815
 816 static bool user_is_admin_helper(void)
 817 {
 818         HANDLE hToken = NULL;
 819         if(!OpenProcessToken(GetCurrentProcess(), TOKEN_QUERY, &hToken))
 820         {
 821                 return false;
 822         }
 823
 824         DWORD dwSize = 0;
 825         if(!GetTokenInformation(hToken, TokenGroups, NULL, 0, &dwSize))
 826         {
 827                 if(GetLastError() != ERROR_INSUFFICIENT_BUFFER)
 828                 {
 829                         CloseHandle(hToken);
 830                         return false;
 831                 }
 832         }
 833
 834         PTOKEN_GROUPS lpGroups = (PTOKEN_GROUPS) malloc(dwSize);
 835         if(!lpGroups)
 836         {
 837                 CloseHandle(hToken);
 838                 return false;
 839         }
 840
 841         if(!GetTokenInformation(hToken, TokenGroups, lpGroups, dwSize, &dwSize))
 842         {
 843                 free(lpGroups);
 844                 CloseHandle(hToken);
 845                 return false;
 846         }
 847
 848         PSID lpSid = NULL; SID_IDENTIFIER_AUTHORITY Authority = {SECURITY_NT_AUTHORITY};
 849         if(!AllocateAndInitializeSid(&Authority, 2, SECURITY_BUILTIN_DOMAIN_RID, DOMAIN_ALIAS_RID_ADMINS, 0, 0, 0, 0, 0, 0, &lpSid))
 850         {
 851                 free(lpGroups);
 852                 CloseHandle(hToken);
 853                 return false;
 854         }
 855
 856         bool bResult = false;
 857         for(DWORD i = 0; i < lpGroups->GroupCount; i++)
 858         {
 859                 if(EqualSid(lpSid, lpGroups->Groups[i].Sid))
 860                 {
 861                         bResult = true;
 862                         break;
 863                 }
 864         }
 865
 866         FreeSid(lpSid);
 867         free(lpGroups);
 868         CloseHandle(hToken);
 869         return bResult;
 870 }
 871
 872 bool MUtils::OS::is_elevated(bool *bIsUacEnabled)
 873 {
 874         if(bIsUacEnabled)
 875         {
 876                 *bIsUacEnabled = false;
 877         }
 878
 879         bool bIsProcessElevated = false;
 880         HANDLE hToken = NULL;
 881
 882         if(OpenProcessToken(GetCurrentProcess(), TOKEN_QUERY, &hToken))
 883         {
 884                 TOKEN_ELEVATION_TYPE tokenElevationType;
 885                 DWORD returnLength;
 886                 if(GetTokenInformation(hToken, TokenElevationType, &tokenElevationType, sizeof(TOKEN_ELEVATION_TYPE), &returnLength))
 887                 {
 888                         if(returnLength == sizeof(TOKEN_ELEVATION_TYPE))
 889                         {
 890                                 switch(tokenElevationType)
 891                                 {
 892                                 case TokenElevationTypeDefault:
 893                                         qDebug("Process token elevation type: Default -> UAC is disabled.\n");
 894                                         break;
 895                                 case TokenElevationTypeFull:
 896                                         qWarning("Process token elevation type: Full -> potential security risk!\n");
 897                                         bIsProcessElevated = true;
 898                                         if(bIsUacEnabled) *bIsUacEnabled = true;
 899                                         break;
 900                                 case TokenElevationTypeLimited:
 901                                         qDebug("Process token elevation type: Limited -> not elevated.\n");
 902                                         if(bIsUacEnabled) *bIsUacEnabled = true;
 903                                         break;
 904                                 default:
 905                                         qWarning("Unknown tokenElevationType value: %d", tokenElevationType);
 906                                         break;
 907                                 }
 908                         }
 909                         else
 910                         {
 911                                 qWarning("GetTokenInformation() return an unexpected size!");
 912                         }
 913                 }
 914                 CloseHandle(hToken);
 915         }
 916         else
 917         {
 918                 qWarning("Failed to open process token!");
 919         }
 920
 921         return bIsProcessElevated;
 922 }
 923
 924 bool MUtils::OS::user_is_admin(void)
 925 {
 926         bool isAdmin = false;
 927
 928         //Check for process elevation and UAC support first!
 929         if(MUtils::OS::is_elevated(&isAdmin))
 930         {
 931                 qWarning("Process is elevated -> user is admin!");
 932                 return true;
 933         }
 934
 935         //If not elevated and UAC is not available -> user must be in admin group!
 936         if(!isAdmin)
 937         {
 938                 qDebug("UAC is disabled/unavailable -> checking for Administrators group");
 939                 isAdmin = user_is_admin_helper();
 940         }
 941
 942         return isAdmin;
 943 }
 944
 945 ///////////////////////////////////////////////////////////////////////////////
 946 // NETWORK STATE
 947 ///////////////////////////////////////////////////////////////////////////////
 948
 949 int MUtils::OS::network_status(void)
 950 {
 951         DWORD dwFlags;
 952         const BOOL ret = IsNetworkAlive(&dwFlags);
 953         if(GetLastError() == 0)
 954         {
 955                 return (ret != FALSE) ? NETWORK_TYPE_YES : NETWORK_TYPE_NON;
 956         }
 957         return NETWORK_TYPE_ERR;
 958 }
 959
 960 ///////////////////////////////////////////////////////////////////////////////
 961 // MESSAGE HANDLER
 962 ///////////////////////////////////////////////////////////////////////////////
 963
 964 bool MUtils::OS::handle_os_message(const void *const message, long *result)
 965 {
 966         const MSG *const msg = reinterpret_cast<const MSG*>(message);
 967
 968         switch(msg->message)
 969         {
 970         case WM_QUERYENDSESSION:
 971                 qWarning("WM_QUERYENDSESSION message received!");
 972                 *result = MUtils::GUI::broadcast(MUtils::GUI::USER_EVENT_QUERYENDSESSION, false) ? TRUE : FALSE;
 973                 return true;
 974         case WM_ENDSESSION:
 975                 qWarning("WM_ENDSESSION message received!");
 976                 if(msg->wParam == TRUE)
 977                 {
 978                         MUtils::GUI::broadcast(MUtils::GUI::USER_EVENT_ENDSESSION, false);
 979                         MUtils::GUI::force_quit();
 980                         exit(1);
 981                 }
 982                 *result = 0;
 983                 return true;
 984         default:
 985                 /*ignore this message and let Qt handle it*/
 986                 return false;
 987         }
 988 }
 989
 990 ///////////////////////////////////////////////////////////////////////////////
 991 // SLEEP
 992 ///////////////////////////////////////////////////////////////////////////////
 993
 994 void MUtils::OS::sleep_ms(const size_t &duration)
 995 {
 996         Sleep((DWORD) duration);
 997 }
 998
 999 ///////////////////////////////////////////////////////////////////////////////
1000 // EXECUTABLE CHECK
1001 ///////////////////////////////////////////////////////////////////////////////
1002
1003 static bool libraryAsImageResourceSupported()
1004 {
1005         OSVERSIONINFOEXW osvi;
1006         memset(&osvi, 0, sizeof(OSVERSIONINFOEXW));
1007         osvi.dwOSVersionInfoSize = sizeof(OSVERSIONINFOEXW);
1008         if(GetVersionExW((LPOSVERSIONINFOW)&osvi))
1009         {
1010                 if(osvi.dwPlatformId == VER_PLATFORM_WIN32_NT)
1011                 {
1012                         return (osvi.dwMajorVersion >= 6U);
1013                 }
1014         }
1015         return false;
1016 }
1017
1018 bool MUtils::OS::is_executable_file(const QString &path)
1019 {
1020         DWORD binaryType;
1021         if(GetBinaryType(MUTILS_WCHR(QDir::toNativeSeparators(path)), &binaryType))
1022         {
1023                 return ((binaryType == SCS_32BIT_BINARY) || (binaryType == SCS_64BIT_BINARY));
1024         }
1025
1026         const DWORD errorCode = GetLastError();
1027         qWarning("GetBinaryType() failed with error: 0x%08X", errorCode);
1028         return false;
1029 }
1030
1031 bool MUtils::OS::is_library_file(const QString &path)
1032 {
1033         const DWORD flags = libraryAsImageResourceSupported() ? (LOAD_LIBRARY_AS_DATAFILE | LOAD_LIBRARY_AS_IMAGE_RESOURCE) : (LOAD_LIBRARY_AS_DATAFILE | DONT_RESOLVE_DLL_REFERENCES);
1034         if (const HMODULE hMod = LoadLibraryEx(MUTILS_WCHR(QDir::toNativeSeparators(path)), NULL, flags))
1035         {
1036                 FreeLibrary(hMod);
1037                 return true;
1038         }
1039
1040         const DWORD errorCode = GetLastError();
1041         qWarning("LoadLibraryEx() failed with error: 0x%08X", errorCode);
1042         return false;
1043 }
1044
1045 ///////////////////////////////////////////////////////////////////////////////
1046 // HIBERNATION / SHUTDOWN
1047 ///////////////////////////////////////////////////////////////////////////////
1048
1049 bool MUtils::OS::is_hibernation_supported(void)
1050 {
1051         bool hibernationSupported = false;
1052
1053         SYSTEM_POWER_CAPABILITIES pwrCaps;
1054         SecureZeroMemory(&pwrCaps, sizeof(SYSTEM_POWER_CAPABILITIES));
1055
1056         if(GetPwrCapabilities(&pwrCaps))
1057         {
1058                 hibernationSupported = pwrCaps.SystemS4 && pwrCaps.HiberFilePresent;
1059         }
1060
1061         return hibernationSupported;
1062 }
1063
1064 bool MUtils::OS::shutdown_computer(const QString &message, const unsigned long timeout, const bool forceShutdown, const bool hibernate)
1065 {
1066         HANDLE hToken = NULL;
1067
1068         if(OpenProcessToken(GetCurrentProcess(), TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken))
1069         {
1070                 TOKEN_PRIVILEGES privileges;
1071                 memset(&privileges, 0, sizeof(TOKEN_PRIVILEGES));
1072                 privileges.PrivilegeCount = 1;
1073                 privileges.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
1074
1075                 if(LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME, &privileges.Privileges[0].Luid))
1076                 {
1077                         if(AdjustTokenPrivileges(hToken, FALSE, &privileges, NULL, NULL, NULL))
1078                         {
1079                                 if(hibernate)
1080                                 {
1081                                         if(SetSuspendState(TRUE, TRUE, TRUE))
1082                                         {
1083                                                 return true;
1084                                         }
1085                                 }
1086                                 const DWORD reason = SHTDN_REASON_MAJOR_APPLICATION | SHTDN_REASON_FLAG_PLANNED;
1087                                 return InitiateSystemShutdownEx(NULL, const_cast<wchar_t*>(MUTILS_WCHR(message)), timeout, forceShutdown ? TRUE : FALSE, FALSE, reason);
1088                         }
1089                 }
1090         }
1091
1092         return false;
1093 }
1094
1095 ///////////////////////////////////////////////////////////////////////////////
1096 // FREE DISKSPACE
1097 ///////////////////////////////////////////////////////////////////////////////
1098
1099 bool MUtils::OS::free_diskspace(const QString &path, quint64 &freeSpace)
1100 {
1101         ULARGE_INTEGER freeBytesAvailable, totalNumberOfBytes, totalNumberOfFreeBytes;
1102         if(GetDiskFreeSpaceExW(reinterpret_cast<const wchar_t*>(QDir::toNativeSeparators(path).utf16()), &freeBytesAvailable, &totalNumberOfBytes, &totalNumberOfFreeBytes))
1103         {
1104                 freeSpace = freeBytesAvailable.QuadPart;
1105                 return true;;
1106         }
1107
1108         freeSpace = -1;
1109         return false;
1110 }
1111
1112 ///////////////////////////////////////////////////////////////////////////////
1113 // SHELL OPEN
1114 ///////////////////////////////////////////////////////////////////////////////
1115
1116 bool MUtils::OS::shell_open(const QWidget *parent, const QString &url, const QString &parameters, const QString &directory, const bool explore)
1117 {
1118         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;
1119 }
1120
1121 bool MUtils::OS::shell_open(const QWidget *parent, const QString &url, const bool explore)
1122 {
1123         return shell_open(parent, url, QString(), QString(), explore);
1124 }
1125
1126 ///////////////////////////////////////////////////////////////////////////////
1127 // OPEN MEDIA FILE
1128 ///////////////////////////////////////////////////////////////////////////////
1129
1130 bool MUtils::OS::open_media_file(const QString &mediaFilePath)
1131 {
1132         const static wchar_t *registryPrefix[2] = { L"SOFTWARE\\", L"SOFTWARE\\Wow6432Node\\" };
1133         const static wchar_t *registryKeys[3] =
1134         {
1135                 L"Microsoft\\Windows\\CurrentVersion\\Uninstall\\{97D341C8-B0D1-4E4A-A49A-C30B52F168E9}",
1136                 L"Microsoft\\Windows\\CurrentVersion\\Uninstall\\{DB9E4EAB-2717-499F-8D56-4CC8A644AB60}",
1137                 L"foobar2000"
1138         };
1139         const static wchar_t *appNames[4] = { L"smplayer_portable.exe", L"smplayer.exe", L"MPUI.exe", L"foobar2000.exe" };
1140         const static wchar_t *valueNames[2] = { L"InstallLocation", L"InstallDir" };
1141
1142         for(size_t i = 0; i < 3; i++)
1143         {
1144                 for(size_t j = 0; j < 2; j++)
1145                 {
1146                         QString mplayerPath;
1147                         HKEY registryKeyHandle = NULL;
1148
1149                         const QString currentKey = MUTILS_QSTR(registryPrefix[j]).append(MUTILS_QSTR(registryKeys[i]));
1150                         if(RegOpenKeyExW(HKEY_LOCAL_MACHINE, MUTILS_WCHR(currentKey), 0, KEY_READ, &registryKeyHandle) == ERROR_SUCCESS)
1151                         {
1152                                 for(size_t k = 0; k < 2; k++)
1153                                 {
1154                                         wchar_t Buffer[4096];
1155                                         DWORD BuffSize = sizeof(wchar_t*) * 4096;
1156                                         DWORD DataType = REG_NONE;
1157                                         if(RegQueryValueExW(registryKeyHandle, valueNames[k], 0, &DataType, reinterpret_cast<BYTE*>(Buffer), &BuffSize) == ERROR_SUCCESS)
1158                                         {
1159                                                 if((DataType == REG_SZ) || (DataType == REG_EXPAND_SZ) || (DataType == REG_LINK))
1160                                                 {
1161                                                         mplayerPath = MUTILS_QSTR(Buffer);
1162                                                         break;
1163                                                 }
1164                                         }
1165                                 }
1166                                 RegCloseKey(registryKeyHandle);
1167                         }
1168
1169                         if(!mplayerPath.isEmpty())
1170                         {
1171                                 QDir mplayerDir(mplayerPath);
1172                                 if(mplayerDir.exists())
1173                                 {
1174                                         for(size_t k = 0; k < 4; k++)
1175                                         {
1176                                                 if(mplayerDir.exists(MUTILS_QSTR(appNames[k])))
1177                                                 {
1178                                                         qDebug("Player found at:\n%s\n", MUTILS_UTF8(mplayerDir.absoluteFilePath(MUTILS_QSTR(appNames[k]))));
1179                                                         QProcess::startDetached(mplayerDir.absoluteFilePath(MUTILS_QSTR(appNames[k])), QStringList() << QDir::toNativeSeparators(mediaFilePath));
1180                                                         return true;
1181                                                 }
1182                                         }
1183                                 }
1184                         }
1185                 }
1186         }
1187         return false;
1188 }
1189
1190 ///////////////////////////////////////////////////////////////////////////////
1191 // DEBUGGER CHECK
1192 ///////////////////////////////////////////////////////////////////////////////
1193
1194 static bool change_process_priority_helper(const HANDLE hProcess, const int priority)
1195 {
1196         bool ok = false;
1197
1198         switch(qBound(-2, priority, 2))
1199         {
1200         case 2:
1201                 ok = (SetPriorityClass(hProcess, HIGH_PRIORITY_CLASS) == TRUE);
1202                 break;
1203         case 1:
1204                 if(!(ok = (SetPriorityClass(hProcess, ABOVE_NORMAL_PRIORITY_CLASS) == TRUE)))
1205                 {
1206                         ok = (SetPriorityClass(hProcess, HIGH_PRIORITY_CLASS) == TRUE);
1207                 }
1208                 break;
1209         case 0:
1210                 ok = (SetPriorityClass(hProcess, NORMAL_PRIORITY_CLASS) == TRUE);
1211                 break;
1212         case -1:
1213                 if(!(ok = (SetPriorityClass(hProcess, BELOW_NORMAL_PRIORITY_CLASS) == TRUE)))
1214                 {
1215                         ok = (SetPriorityClass(hProcess, IDLE_PRIORITY_CLASS) == TRUE);
1216                 }
1217                 break;
1218         case -2:
1219                 ok = (SetPriorityClass(hProcess, IDLE_PRIORITY_CLASS) == TRUE);
1220                 break;
1221         }
1222
1223         return ok;
1224 }
1225
1226 bool MUtils::OS::change_process_priority(const int priority)
1227 {
1228         return change_process_priority_helper(GetCurrentProcess(), priority);
1229 }
1230
1231 bool MUtils::OS::change_process_priority(const QProcess *proc, const int priority)
1232 {
1233         if(Q_PID qPid = proc->pid())
1234         {
1235                 return change_process_priority_helper(qPid->hProcess, priority);
1236         }
1237         else
1238         {
1239                 return false;
1240         }
1241 }
1242
1243 ///////////////////////////////////////////////////////////////////////////////
1244 // PROCESS ID
1245 ///////////////////////////////////////////////////////////////////////////////
1246
1247 quint32 MUtils::OS::process_id(const QProcess *const proc)
1248 {
1249         PROCESS_INFORMATION *procInf = proc->pid();
1250         return (procInf) ? procInf->dwProcessId : NULL;
1251 }
1252
1253 ///////////////////////////////////////////////////////////////////////////////
1254 // PROCESS SUSPEND/RESUME
1255 ///////////////////////////////////////////////////////////////////////////////
1256
1257 bool MUtils::OS::suspend_process(const QProcess *proc, const bool suspend)
1258 {
1259         if(Q_PID pid = proc->pid())
1260         {
1261                 if(suspend)
1262                 {
1263                         return (SuspendThread(pid->hThread) != ((DWORD) -1));
1264                 }
1265                 else
1266                 {
1267                         return (ResumeThread(pid->hThread)  != ((DWORD) -1));
1268                 }
1269         }
1270         else
1271         {
1272                 return false;
1273         }
1274 }
1275
1276 ///////////////////////////////////////////////////////////////////////////////
1277 // SYSTEM TIMER
1278 ///////////////////////////////////////////////////////////////////////////////
1279
1280 bool MUtils::OS::setup_timer_resolution(const quint32 &interval)
1281 {
1282         return timeBeginPeriod(interval) == TIMERR_NOERROR;
1283 }
1284
1285 bool MUtils::OS::reset_timer_resolution(const quint32 &interval)
1286 {
1287         return timeEndPeriod(interval) == TIMERR_NOERROR;
1288 }
1289
1290 ///////////////////////////////////////////////////////////////////////////////
1291 // SET FILE TIME
1292 ///////////////////////////////////////////////////////////////////////////////
1293
1294 static QScopedPointer<QDateTime> s_epoch;
1295 static QReadWriteLock            s_epochLock;
1296
1297 static const QDateTime *get_epoch(void)
1298 {
1299         QReadLocker rdLock(&s_epochLock);
1300
1301         if (s_epoch.isNull())
1302         {
1303                 rdLock.unlock();
1304                 QWriteLocker wrLock(&s_epochLock);
1305                 if (s_epoch.isNull())
1306                 {
1307                         s_epoch.reset(new QDateTime(QDate(1601, 1, 1), QTime(0, 0, 0, 0), Qt::UTC));
1308                 }
1309                 wrLock.unlock();
1310                 rdLock.relock();
1311         }
1312
1313         return s_epoch.data();
1314 }
1315
1316 static FILETIME *qt_time_to_file_time(FILETIME *const fileTime, const QDateTime &dateTime)
1317 {
1318         memset(fileTime, 0, sizeof(FILETIME));
1319
1320         if (const QDateTime *const epoch = get_epoch())
1321         {
1322                 const qint64 msecs = epoch->msecsTo(dateTime);
1323                 if (msecs > 0)
1324                 {
1325                         const quint64 ticks = 10000U * quint64(msecs);
1326                         fileTime->dwHighDateTime = ((ticks >> 32) & 0xFFFFFFFF);
1327                         fileTime->dwLowDateTime = (ticks & 0xFFFFFFFF);
1328                         return fileTime;
1329                 }
1330         }
1331
1332         return NULL;
1333 }
1334
1335 static bool set_file_time(const HANDLE hFile, const QDateTime &created, const QDateTime &lastMod, const QDateTime &lastAcc)
1336 {
1337         FILETIME ftCreated, ftLastMod, ftLastAcc;
1338
1339         FILETIME *const pCreated = created.isValid() ? qt_time_to_file_time(&ftCreated, created) : NULL;
1340         FILETIME *const pLastMod = lastMod.isValid() ? qt_time_to_file_time(&ftLastMod, lastMod) : NULL;
1341         FILETIME *const pLastAcc = lastAcc.isValid() ? qt_time_to_file_time(&ftLastAcc, lastAcc) : NULL;
1342
1343         if (pCreated || pLastMod || pLastAcc)
1344         {
1345                 return (SetFileTime(hFile, pCreated, pLastAcc, pLastMod) != FALSE);
1346         }
1347
1348         return false;
1349 }
1350
1351 bool MUtils::OS::set_file_time(const QFile &file, const QDateTime &created, const QDateTime &lastMod, const QDateTime &lastAcc)
1352 {
1353         const int fd = file.handle();
1354         if (fd >= 0)
1355         {
1356                 return set_file_time((HANDLE)_get_osfhandle(fd), created, lastMod, lastAcc);
1357         }
1358         return false;
1359 }
1360
1361 bool MUtils::OS::set_file_time(const QString &path, const QDateTime &created, const QDateTime &lastMod, const QDateTime &lastAcc)
1362 {
1363         const HANDLE hFile = CreateFileW(MUTILS_WCHR(path), FILE_WRITE_ATTRIBUTES, FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, 0);
1364         bool okay = false;
1365         if ((hFile != NULL) && (hFile != INVALID_HANDLE_VALUE))
1366         {
1367                 okay = set_file_time(hFile, created, lastMod, lastAcc);
1368                 CloseHandle(hFile);
1369         }
1370         return okay;
1371 }
1372
1373 ///////////////////////////////////////////////////////////////////////////////
1374 // CHECK KEY STATE
1375 ///////////////////////////////////////////////////////////////////////////////
1376
1377 bool MUtils::OS::check_key_state_esc(void)
1378 {
1379         return (GetAsyncKeyState(VK_ESCAPE) & 0x0001) != 0;
1380 }
1381
1382 ///////////////////////////////////////////////////////////////////////////////
1383 // SHELL CHANGE NOTIFICATION
1384 ///////////////////////////////////////////////////////////////////////////////
1385
1386 void MUtils::OS::shell_change_notification(void)
1387 {
1388         SHChangeNotify(SHCNE_ASSOCCHANGED, SHCNF_IDLIST, NULL, NULL);
1389 }
1390
1391 ///////////////////////////////////////////////////////////////////////////////
1392 // WOW64 REDIRECTION
1393 ///////////////////////////////////////////////////////////////////////////////
1394
1395 typedef BOOL (_stdcall *Wow64DisableWow64FsRedirectionFun)(void *OldValue);
1396 typedef BOOL (_stdcall *Wow64RevertWow64FsRedirectionFun )(void *OldValue);
1397
1398 bool MUtils::OS::wow64fsredir_disable(void *oldValue)
1399 {
1400         const Wow64DisableWow64FsRedirectionFun wow64redir_disable = MUtils::Win32Utils::resolve<Wow64DisableWow64FsRedirectionFun>(QLatin1String("kernel32"), QLatin1String("Wow64DisableWow64FsRedirection"));
1401         if(wow64redir_disable)
1402         {
1403                 if (wow64redir_disable(oldValue))
1404                 {
1405                         return true;
1406                 }
1407         }
1408         return false;
1409 }
1410
1411 bool MUtils::OS::wow64fsredir_revert(void *oldValue)
1412 {
1413         const Wow64RevertWow64FsRedirectionFun wow64redir_disable = MUtils::Win32Utils::resolve<Wow64RevertWow64FsRedirectionFun>(QLatin1String("kernel32"), QLatin1String("Wow64RevertWow64FsRedirection"));
1414         if (wow64redir_disable)
1415         {
1416                 if (wow64redir_disable(oldValue))
1417                 {
1418                         return true;
1419                 }
1420         }
1421         return false;
1422 }
1423
1424 ///////////////////////////////////////////////////////////////////////////////
1425 // DEBUGGER CHECK
1426 ///////////////////////////////////////////////////////////////////////////////
1427
1428 #if (!(MUTILS_DEBUG))
1429 static __forceinline bool is_debugger_present(void)
1430 {
1431         __try
1432         {
1433                 CloseHandle((HANDLE)((DWORD_PTR)-3));
1434         }
1435         __except(1)
1436         {
1437                 return true;
1438         }
1439
1440         BOOL bHaveDebugger = FALSE;
1441         if(CheckRemoteDebuggerPresent(GetCurrentProcess(), &bHaveDebugger))
1442         {
1443                 if(bHaveDebugger) return true;
1444         }
1445
1446         return IsDebuggerPresent();
1447 }
1448 static __forceinline bool check_debugger_helper(void)
1449 {
1450         if(is_debugger_present())
1451         {
1452                 MUtils::OS::fatal_exit(L"Not a debug build. Please unload debugger and try again!");
1453                 return true;
1454         }
1455         return false;
1456 }
1457 #else
1458 #define check_debugger_helper() (false)
1459 #endif
1460
1461 void MUtils::OS::check_debugger(void)
1462 {
1463         check_debugger_helper();
1464 }
1465
1466 static volatile bool g_debug_check = check_debugger_helper();
1467
1468 ///////////////////////////////////////////////////////////////////////////////
1469 // FATAL EXIT
1470 ///////////////////////////////////////////////////////////////////////////////
1471
1472 static MUtils::Internal::CriticalSection g_fatal_exit_lock;
1473 static volatile bool g_fatal_exit_flag = true;
1474
1475 static DWORD WINAPI fatal_exit_helper(LPVOID lpParameter)
1476 {
1477         MUtils::OS::system_message_err(L"GURU MEDITATION", (LPWSTR) lpParameter);
1478         return 0;
1479 }
1480
1481 void MUtils::OS::fatal_exit(const wchar_t* const errorMessage)
1482 {
1483         g_fatal_exit_lock.enter();
1484
1485         if(!g_fatal_exit_flag)
1486         {
1487                 return; /*prevent recursive invocation*/
1488         }
1489
1490         g_fatal_exit_flag = false;
1491
1492         if(g_main_thread_id != GetCurrentThreadId())
1493         {
1494                 if(HANDLE hThreadMain = OpenThread(THREAD_SUSPEND_RESUME, FALSE, g_main_thread_id))
1495                 {
1496                         SuspendThread(hThreadMain); /*stop main thread*/
1497                 }
1498         }
1499
1500         if(HANDLE hThread = CreateThread(NULL, 0, fatal_exit_helper, (LPVOID) errorMessage, 0, NULL))
1501         {
1502                 WaitForSingleObject(hThread, INFINITE);
1503         }
1504
1505         for(;;)
1506         {
1507                 TerminateProcess(GetCurrentProcess(), 666);
1508         }
1509 }
1510
1511 ///////////////////////////////////////////////////////////////////////////////