src/OSSupport_Win32.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // MuldeR's Utilities for Qt
   3 // Copyright (C) 2004-2014 LoRd_MuldeR <MuldeR2@GMX.de>
   4 //
   5 // This library is free software; you can redistribute it and/or
   6 // modify it under the terms of the GNU Lesser General Public
   7 // License as published by the Free Software Foundation; either
   8 // version 2.1 of the License, or (at your option) any later version.
   9 //
  10 // This library is distributed in the hope that it will be useful,
  11 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13 // Lesser General Public License for more details.
  14 //
  15 // You should have received a copy of the GNU Lesser General Public
  16 // License along with this library; if not, write to the Free Software
  17 // Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
  18 //
  19 // http://www.gnu.org/licenses/lgpl-2.1.txt
  20 //////////////////////////////////////////////////////////////////////////////////
  21
  22 //Win32 API
  23 #define WIN32_LEAN_AND_MEAN 1
  24 #include <Windows.h>
  25 #include <Objbase.h>
  26 #include <Psapi.h>
  27 #include <Sensapi.h>
  28 #include <Shellapi.h>
  29 #include <PowrProf.h>
  30 #include <Mmsystem.h>
  31
  32 //Internal
  33 #include <MUtils/Global.h>
  34 #include <MUtils/OSSupport.h>
  35 #include <MUtils/GUI.h>
  36 #include "CriticalSection_Win32.h"
  37
  38 //Qt
  39 #include <QMap>
  40 #include <QReadWriteLock>
  41 #include <QLibrary>
  42 #include <QDir>
  43 #include <QWidget>
  44 #include <QProcess>
  45
  46 //Main thread ID
  47 static const DWORD g_main_thread_id = GetCurrentThreadId();
  48
  49 ///////////////////////////////////////////////////////////////////////////////
  50 // SYSTEM MESSAGE
  51 ///////////////////////////////////////////////////////////////////////////////
  52
  53 static const UINT g_msgBoxFlags = MB_TOPMOST | MB_TASKMODAL | MB_SETFOREGROUND;
  54
  55 void MUtils::OS::system_message_nfo(const wchar_t *const title, const wchar_t *const text)
  56 {
  57         MessageBoxW(NULL, text, title, g_msgBoxFlags | MB_ICONINFORMATION);
  58 }
  59
  60 void MUtils::OS::system_message_wrn(const wchar_t *const title, const wchar_t *const text)
  61 {
  62         MessageBoxW(NULL, text, title, g_msgBoxFlags | MB_ICONWARNING);
  63 }
  64
  65 void MUtils::OS::system_message_err(const wchar_t *const title, const wchar_t *const text)
  66 {
  67         MessageBoxW(NULL, text, title, g_msgBoxFlags | MB_ICONERROR);
  68 }
  69
  70 ///////////////////////////////////////////////////////////////////////////////
  71 // FETCH CLI ARGUMENTS
  72 ///////////////////////////////////////////////////////////////////////////////
  73
  74 static QReadWriteLock g_arguments_lock;
  75 static QScopedPointer<QStringList> g_arguments_list;
  76
  77 const QStringList &MUtils::OS::arguments(void)
  78 {
  79         QReadLocker readLock(&g_arguments_lock);
  80
  81         //Already initialized?
  82         if(!g_arguments_list.isNull())
  83         {
  84                 return (*(g_arguments_list.data()));
  85         }
  86
  87         readLock.unlock();
  88         QWriteLocker writeLock(&g_arguments_lock);
  89
  90         //Still not initialized?
  91         if(!g_arguments_list.isNull())
  92         {
  93                 return (*(g_arguments_list.data()));
  94         }
  95
  96         g_arguments_list.reset(new QStringList);
  97         int nArgs = 0;
  98         LPWSTR *szArglist = CommandLineToArgvW(GetCommandLineW(), &nArgs);
  99
 100         if(NULL != szArglist)
 101         {
 102                 for(int i = 0; i < nArgs; i++)
 103                 {
 104                         *(g_arguments_list.data()) << MUTILS_QSTR(szArglist[i]);
 105                 }
 106                 LocalFree(szArglist);
 107         }
 108         else
 109         {
 110                 qWarning("CommandLineToArgvW() has failed !!!");
 111         }
 112
 113         return (*(g_arguments_list.data()));
 114 }
 115
 116 ///////////////////////////////////////////////////////////////////////////////
 117 // OS VERSION DETECTION
 118 ///////////////////////////////////////////////////////////////////////////////
 119
 120 static bool g_os_version_initialized = false;
 121 static MUtils::OS::Version::os_version_t g_os_version_info = MUtils::OS::Version::UNKNOWN_OPSYS;
 122 static QReadWriteLock g_os_version_lock;
 123
 124 //Maps marketing names to the actual Windows NT versions
 125 static const struct
 126 {
 127         MUtils::OS::Version::os_version_t version;
 128         const char friendlyName[64];
 129 }
 130 g_os_version_lut[] =
 131 {
 132         { MUtils::OS::Version::WINDOWS_WIN2K, "Windows 2000"                                  },        //2000
 133         { MUtils::OS::Version::WINDOWS_WINXP, "Windows XP or Windows XP Media Center Edition" },        //XP
 134         { MUtils::OS::Version::WINDOWS_XPX64, "Windows Server 2003 or Windows XP x64"         },        //XP_x64
 135         { MUtils::OS::Version::WINDOWS_VISTA, "Windows Vista or Windows Server 2008"          },        //Vista
 136         { MUtils::OS::Version::WINDOWS_WIN70, "Windows 7 or Windows Server 2008 R2"           },        //7
 137         { MUtils::OS::Version::WINDOWS_WIN80, "Windows 8 or Windows Server 2012"              },        //8
 138         { MUtils::OS::Version::WINDOWS_WIN81, "Windows 8.1 or Windows Server 2012 R2"         },        //8.1
 139         { MUtils::OS::Version::WINDOWS_WN100, "Windows 10 or Windows Server 2014 (Preview)"   },        //10
 140         { MUtils::OS::Version::UNKNOWN_OPSYS, "N/A" }
 141 };
 142
 143 static bool verify_os_version(const DWORD major, const DWORD minor)
 144 {
 145         OSVERSIONINFOEXW osvi;
 146         DWORDLONG dwlConditionMask = 0;
 147
 148         //Initialize the OSVERSIONINFOEX structure
 149         memset(&osvi, 0, sizeof(OSVERSIONINFOEXW));
 150         osvi.dwOSVersionInfoSize = sizeof(OSVERSIONINFOEXW);
 151         osvi.dwMajorVersion = major;
 152         osvi.dwMinorVersion = minor;
 153         osvi.dwPlatformId = VER_PLATFORM_WIN32_NT;
 154
 155         //Initialize the condition mask
 156         VER_SET_CONDITION(dwlConditionMask, VER_MAJORVERSION, VER_GREATER_EQUAL);
 157         VER_SET_CONDITION(dwlConditionMask, VER_MINORVERSION, VER_GREATER_EQUAL);
 158         VER_SET_CONDITION(dwlConditionMask, VER_PLATFORMID, VER_EQUAL);
 159
 160         // Perform the test
 161         const BOOL ret = VerifyVersionInfoW(&osvi, VER_MAJORVERSION | VER_MINORVERSION | VER_PLATFORMID, dwlConditionMask);
 162
 163         //Error checking
 164         if(!ret)
 165         {
 166                 if(GetLastError() != ERROR_OLD_WIN_VERSION)
 167                 {
 168                         qWarning("VerifyVersionInfo() system call has failed!");
 169                 }
 170         }
 171
 172         return (ret != FALSE);
 173 }
 174
 175 static bool get_real_os_version(unsigned int *major, unsigned int *minor, bool *pbOverride)
 176 {
 177         *major = *minor = 0;
 178         *pbOverride = false;
 179
 180         //Initialize local variables
 181         OSVERSIONINFOEXW osvi;
 182         memset(&osvi, 0, sizeof(OSVERSIONINFOEXW));
 183         osvi.dwOSVersionInfoSize = sizeof(OSVERSIONINFOEXW);
 184
 185         //Try GetVersionEx() first
 186         if(GetVersionExW((LPOSVERSIONINFOW)&osvi) == FALSE)
 187         {
 188                 qWarning("GetVersionEx() has failed, cannot detect Windows version!");
 189                 return false;
 190         }
 191
 192         //Make sure we are running on NT
 193         if(osvi.dwPlatformId == VER_PLATFORM_WIN32_NT)
 194         {
 195                 *major = osvi.dwMajorVersion;
 196                 *minor = osvi.dwMinorVersion;
 197         }
 198         else
 199         {
 200                 qWarning("Not running on Windows NT, unsupported operating system!");
 201                 return false;
 202         }
 203
 204         //Determine the real *major* version first
 205         forever
 206         {
 207                 const DWORD nextMajor = (*major) + 1;
 208                 if(verify_os_version(nextMajor, 0))
 209                 {
 210                         *pbOverride = true;
 211                         *major = nextMajor;
 212                         *minor = 0;
 213                         continue;
 214                 }
 215                 break;
 216         }
 217
 218         //Now also determine the real *minor* version
 219         forever
 220         {
 221                 const DWORD nextMinor = (*minor) + 1;
 222                 if(verify_os_version((*major), nextMinor))
 223                 {
 224                         *pbOverride = true;
 225                         *minor = nextMinor;
 226                         continue;
 227                 }
 228                 break;
 229         }
 230
 231         return true;
 232 }
 233
 234 const MUtils::OS::Version::os_version_t &MUtils::OS::os_version(void)
 235 {
 236         QReadLocker readLock(&g_os_version_lock);
 237
 238         //Already initialized?
 239         if(g_os_version_initialized)
 240         {
 241                 return g_os_version_info;
 242         }
 243
 244         readLock.unlock();
 245         QWriteLocker writeLock(&g_os_version_lock);
 246
 247         //Initialized now?
 248         if(g_os_version_initialized)
 249         {
 250                 return g_os_version_info;
 251         }
 252
 253         //Detect OS version
 254         unsigned int major, minor; bool overrideFlg;
 255         if(get_real_os_version(&major, &minor, &overrideFlg))
 256         {
 257                 g_os_version_info.type = Version::OS_WINDOWS;
 258                 g_os_version_info.versionMajor = major;
 259                 g_os_version_info.versionMinor = minor;
 260                 g_os_version_info.overrideFlag = overrideFlg;
 261         }
 262         else
 263         {
 264                 qWarning("Failed to determin the operating system version!");
 265         }
 266
 267         //Completed
 268         g_os_version_initialized = true;
 269         return g_os_version_info;
 270 }
 271
 272 const char *MUtils::OS::os_friendly_name(const MUtils::OS::Version::os_version_t &os_version)
 273 {
 274         for(size_t i = 0; g_os_version_lut[i].version != MUtils::OS::Version::UNKNOWN_OPSYS; i++)
 275         {
 276                 if(os_version == g_os_version_lut[i].version)
 277                 {
 278                         return g_os_version_lut[i].friendlyName;
 279                 }
 280         }
 281
 282         return NULL;
 283 }
 284
 285 ///////////////////////////////////////////////////////////////////////////////
 286 // WINE DETECTION
 287 ///////////////////////////////////////////////////////////////////////////////
 288
 289 static bool g_wine_deteced = false;
 290 static bool g_wine_initialized = false;
 291 static QReadWriteLock g_wine_lock;
 292
 293 static const bool detect_wine(void)
 294 {
 295         bool is_wine = false;
 296
 297         QLibrary ntdll("ntdll.dll");
 298         if(ntdll.load())
 299         {
 300                 if(ntdll.resolve("wine_nt_to_unix_file_name") != NULL) is_wine = true;
 301                 if(ntdll.resolve("wine_get_version")          != NULL) is_wine = true;
 302                 ntdll.unload();
 303         }
 304
 305         return is_wine;
 306 }
 307
 308 const bool &MUtils::OS::running_on_wine(void)
 309 {
 310         QReadLocker readLock(&g_wine_lock);
 311
 312         //Already initialized?
 313         if(g_wine_initialized)
 314         {
 315                 return g_wine_deteced;
 316         }
 317
 318         readLock.unlock();
 319         QWriteLocker writeLock(&g_wine_lock);
 320
 321         //Initialized now?
 322         if(g_wine_initialized)
 323         {
 324                 return g_wine_deteced;
 325         }
 326
 327         //Try to detect Wine
 328         g_wine_deteced = detect_wine();
 329         g_wine_initialized = true;
 330
 331         return g_wine_deteced;
 332 }
 333
 334 ///////////////////////////////////////////////////////////////////////////////
 335 // KNWON FOLDERS
 336 ///////////////////////////////////////////////////////////////////////////////
 337
 338 typedef QMap<size_t, QString> KFMap;
 339 typedef HRESULT (WINAPI *SHGetKnownFolderPath_t)(const GUID &rfid, DWORD dwFlags, HANDLE hToken, PWSTR *ppszPath);
 340 typedef HRESULT (WINAPI *SHGetFolderPath_t)(HWND hwndOwner, int nFolder, HANDLE hToken, DWORD dwFlags, LPWSTR pszPath);
 341
 342 static QScopedPointer<KFMap>  g_known_folders_map;
 343 static SHGetKnownFolderPath_t g_known_folders_fpGetKnownFolderPath;
 344 static SHGetFolderPath_t      g_known_folders_fpGetFolderPath;
 345 static QReadWriteLock         g_known_folders_lock;
 346
 347 const QString &MUtils::OS::known_folder(known_folder_t folder_id)
 348 {
 349         static const int CSIDL_FLAG_CREATE = 0x8000;
 350         typedef enum { KF_FLAG_CREATE = 0x00008000 } kf_flags_t;
 351
 352         struct
 353         {
 354                 const int csidl;
 355                 const GUID guid;
 356         }
 357         static s_folders[] =
 358         {
 359                 { 0x001c, {0xF1B32785,0x6FBA,0x4FCF,{0x9D,0x55,0x7B,0x8E,0x7F,0x15,0x70,0x91}} },  //CSIDL_LOCAL_APPDATA
 360                 { 0x0026, {0x905e63b6,0xc1bf,0x494e,{0xb2,0x9c,0x65,0xb7,0x32,0xd3,0xd2,0x1a}} },  //CSIDL_PROGRAM_FILES
 361                 { 0x0024, {0xF38BF404,0x1D43,0x42F2,{0x93,0x05,0x67,0xDE,0x0B,0x28,0xFC,0x23}} },  //CSIDL_WINDOWS_FOLDER
 362                 { 0x0025, {0x1AC14E77,0x02E7,0x4E5D,{0xB7,0x44,0x2E,0xB1,0xAE,0x51,0x98,0xB7}} },  //CSIDL_SYSTEM_FOLDER
 363         };
 364
 365         size_t folderId = size_t(-1);
 366
 367         switch(folder_id)
 368         {
 369                 case FOLDER_LOCALAPPDATA: folderId = 0; break;
 370                 case FOLDER_PROGRAMFILES: folderId = 1; break;
 371                 case FOLDER_SYSTROOT_DIR: folderId = 2; break;
 372                 case FOLDER_SYSTEMFOLDER: folderId = 3; break;
 373         }
 374
 375         if(folderId == size_t(-1))
 376         {
 377                 qWarning("Invalid 'known' folder was requested!");
 378                 return *reinterpret_cast<QString*>(NULL);
 379         }
 380
 381         QReadLocker readLock(&g_known_folders_lock);
 382
 383         //Already in cache?
 384         if(!g_known_folders_map.isNull())
 385         {
 386                 if(g_known_folders_map->contains(folderId))
 387                 {
 388                         return g_known_folders_map->operator[](folderId);
 389                 }
 390         }
 391
 392         //Obtain write lock to initialize
 393         readLock.unlock();
 394         QWriteLocker writeLock(&g_known_folders_lock);
 395
 396         //Still not in cache?
 397         if(!g_known_folders_map.isNull())
 398         {
 399                 if(g_known_folders_map->contains(folderId))
 400                 {
 401                         return g_known_folders_map->operator[](folderId);
 402                 }
 403         }
 404
 405         //Initialize on first call
 406         if(g_known_folders_map.isNull())
 407         {
 408                 QLibrary shell32("shell32.dll");
 409                 if(shell32.load())
 410                 {
 411                         g_known_folders_fpGetFolderPath =      (SHGetFolderPath_t)      shell32.resolve("SHGetFolderPathW");
 412                         g_known_folders_fpGetKnownFolderPath = (SHGetKnownFolderPath_t) shell32.resolve("SHGetKnownFolderPath");
 413                 }
 414                 g_known_folders_map.reset(new QMap<size_t, QString>());
 415         }
 416
 417         QString folderPath;
 418
 419         //Now try to get the folder path!
 420         if(g_known_folders_fpGetKnownFolderPath)
 421         {
 422                 WCHAR *path = NULL;
 423                 if(g_known_folders_fpGetKnownFolderPath(s_folders[folderId].guid, KF_FLAG_CREATE, NULL, &path) == S_OK)
 424                 {
 425                         //MessageBoxW(0, path, L"SHGetKnownFolderPath", MB_TOPMOST);
 426                         QDir folderTemp = QDir(QDir::fromNativeSeparators(MUTILS_QSTR(path)));
 427                         if(folderTemp.exists())
 428                         {
 429                                 folderPath = folderTemp.canonicalPath();
 430                         }
 431                         CoTaskMemFree(path);
 432                 }
 433         }
 434         else if(g_known_folders_fpGetFolderPath)
 435         {
 436                 QScopedArrayPointer<WCHAR> path(new WCHAR[4096]);
 437                 if(g_known_folders_fpGetFolderPath(NULL, s_folders[folderId].csidl | CSIDL_FLAG_CREATE, NULL, NULL, path.data()) == S_OK)
 438                 {
 439                         //MessageBoxW(0, path, L"SHGetFolderPathW", MB_TOPMOST);
 440                         QDir folderTemp = QDir(QDir::fromNativeSeparators(MUTILS_QSTR(path.data())));
 441                         if(folderTemp.exists())
 442                         {
 443                                 folderPath = folderTemp.canonicalPath();
 444                         }
 445                 }
 446         }
 447
 448         //Update cache
 449         g_known_folders_map->insert(folderId, folderPath);
 450         return g_known_folders_map->operator[](folderId);
 451 }
 452
 453 ///////////////////////////////////////////////////////////////////////////////
 454 // CURRENT DATA & TIME
 455 ///////////////////////////////////////////////////////////////////////////////
 456
 457 QDate MUtils::OS::current_date(void)
 458 {
 459         const DWORD MAX_PROC = 1024;
 460         QScopedArrayPointer<DWORD> processes(new DWORD[MAX_PROC]);
 461         DWORD bytesReturned = 0;
 462
 463         if(!EnumProcesses(processes.data(), sizeof(DWORD) * MAX_PROC, &bytesReturned))
 464         {
 465                 return QDate::currentDate();
 466         }
 467
 468         const DWORD procCount = bytesReturned / sizeof(DWORD);
 469         ULARGE_INTEGER lastStartTime;
 470         memset(&lastStartTime, 0, sizeof(ULARGE_INTEGER));
 471
 472         for(DWORD i = 0; i < procCount; i++)
 473         {
 474                 if(HANDLE hProc = OpenProcess(PROCESS_QUERY_INFORMATION, FALSE, processes[i]))
 475                 {
 476                         FILETIME processTime[4];
 477                         if(GetProcessTimes(hProc, &processTime[0], &processTime[1], &processTime[2], &processTime[3]))
 478                         {
 479                                 ULARGE_INTEGER timeCreation;
 480                                 timeCreation.LowPart  = processTime[0].dwLowDateTime;
 481                                 timeCreation.HighPart = processTime[0].dwHighDateTime;
 482                                 if(timeCreation.QuadPart > lastStartTime.QuadPart)
 483                                 {
 484                                         lastStartTime.QuadPart = timeCreation.QuadPart;
 485                                 }
 486                         }
 487                         CloseHandle(hProc);
 488                 }
 489         }
 490
 491         FILETIME lastStartTime_fileTime;
 492         lastStartTime_fileTime.dwHighDateTime = lastStartTime.HighPart;
 493         lastStartTime_fileTime.dwLowDateTime  = lastStartTime.LowPart;
 494
 495         FILETIME lastStartTime_localTime;
 496         if(!FileTimeToLocalFileTime(&lastStartTime_fileTime, &lastStartTime_localTime))
 497         {
 498                 memcpy(&lastStartTime_localTime, &lastStartTime_fileTime, sizeof(FILETIME));
 499         }
 500
 501         SYSTEMTIME lastStartTime_system;
 502         if(!FileTimeToSystemTime(&lastStartTime_localTime, &lastStartTime_system))
 503         {
 504                 memset(&lastStartTime_system, 0, sizeof(SYSTEMTIME));
 505                 lastStartTime_system.wYear = 1970; lastStartTime_system.wMonth = lastStartTime_system.wDay = 1;
 506         }
 507
 508         const QDate currentDate = QDate::currentDate();
 509         const QDate processDate = QDate(lastStartTime_system.wYear, lastStartTime_system.wMonth, lastStartTime_system.wDay);
 510         return (currentDate >= processDate) ? currentDate : processDate;
 511 }
 512
 513 quint64 MUtils::OS::current_file_time(void)
 514 {
 515         FILETIME fileTime;
 516         GetSystemTimeAsFileTime(&fileTime);
 517
 518         ULARGE_INTEGER temp;
 519         temp.HighPart = fileTime.dwHighDateTime;
 520         temp.LowPart = fileTime.dwLowDateTime;
 521
 522         return temp.QuadPart;
 523 }
 524
 525 ///////////////////////////////////////////////////////////////////////////////
 526 // PROCESS ELEVATION
 527 ///////////////////////////////////////////////////////////////////////////////
 528
 529 static bool user_is_admin_helper(void)
 530 {
 531         HANDLE hToken = NULL;
 532         if(!OpenProcessToken(GetCurrentProcess(), TOKEN_QUERY, &hToken))
 533         {
 534                 return false;
 535         }
 536
 537         DWORD dwSize = 0;
 538         if(!GetTokenInformation(hToken, TokenGroups, NULL, 0, &dwSize))
 539         {
 540                 if(GetLastError() != ERROR_INSUFFICIENT_BUFFER)
 541                 {
 542                         CloseHandle(hToken);
 543                         return false;
 544                 }
 545         }
 546
 547         PTOKEN_GROUPS lpGroups = (PTOKEN_GROUPS) malloc(dwSize);
 548         if(!lpGroups)
 549         {
 550                 CloseHandle(hToken);
 551                 return false;
 552         }
 553
 554         if(!GetTokenInformation(hToken, TokenGroups, lpGroups, dwSize, &dwSize))
 555         {
 556                 free(lpGroups);
 557                 CloseHandle(hToken);
 558                 return false;
 559         }
 560
 561         PSID lpSid = NULL; SID_IDENTIFIER_AUTHORITY Authority = {SECURITY_NT_AUTHORITY};
 562         if(!AllocateAndInitializeSid(&Authority, 2, SECURITY_BUILTIN_DOMAIN_RID, DOMAIN_ALIAS_RID_ADMINS, 0, 0, 0, 0, 0, 0, &lpSid))
 563         {
 564                 free(lpGroups);
 565                 CloseHandle(hToken);
 566                 return false;
 567         }
 568
 569         bool bResult = false;
 570         for(DWORD i = 0; i < lpGroups->GroupCount; i++)
 571         {
 572                 if(EqualSid(lpSid, lpGroups->Groups[i].Sid))
 573                 {
 574                         bResult = true;
 575                         break;
 576                 }
 577         }
 578
 579         FreeSid(lpSid);
 580         free(lpGroups);
 581         CloseHandle(hToken);
 582         return bResult;
 583 }
 584
 585 bool MUtils::OS::is_elevated(bool *bIsUacEnabled)
 586 {
 587         if(bIsUacEnabled)
 588         {
 589                 *bIsUacEnabled = false;
 590         }
 591
 592         bool bIsProcessElevated = false;
 593         HANDLE hToken = NULL;
 594
 595         if(OpenProcessToken(GetCurrentProcess(), TOKEN_QUERY, &hToken))
 596         {
 597                 TOKEN_ELEVATION_TYPE tokenElevationType;
 598                 DWORD returnLength;
 599                 if(GetTokenInformation(hToken, TokenElevationType, &tokenElevationType, sizeof(TOKEN_ELEVATION_TYPE), &returnLength))
 600                 {
 601                         if(returnLength == sizeof(TOKEN_ELEVATION_TYPE))
 602                         {
 603                                 switch(tokenElevationType)
 604                                 {
 605                                 case TokenElevationTypeDefault:
 606                                         qDebug("Process token elevation type: Default -> UAC is disabled.\n");
 607                                         break;
 608                                 case TokenElevationTypeFull:
 609                                         qWarning("Process token elevation type: Full -> potential security risk!\n");
 610                                         bIsProcessElevated = true;
 611                                         if(bIsUacEnabled) *bIsUacEnabled = true;
 612                                         break;
 613                                 case TokenElevationTypeLimited:
 614                                         qDebug("Process token elevation type: Limited -> not elevated.\n");
 615                                         if(bIsUacEnabled) *bIsUacEnabled = true;
 616                                         break;
 617                                 default:
 618                                         qWarning("Unknown tokenElevationType value: %d", tokenElevationType);
 619                                         break;
 620                                 }
 621                         }
 622                         else
 623                         {
 624                                 qWarning("GetTokenInformation() return an unexpected size!");
 625                         }
 626                 }
 627                 CloseHandle(hToken);
 628         }
 629         else
 630         {
 631                 qWarning("Failed to open process token!");
 632         }
 633
 634         return bIsProcessElevated;
 635 }
 636
 637 bool MUtils::OS::user_is_admin(void)
 638 {
 639         bool isAdmin = false;
 640
 641         //Check for process elevation and UAC support first!
 642         if(MUtils::OS::is_elevated(&isAdmin))
 643         {
 644                 qWarning("Process is elevated -> user is admin!");
 645                 return true;
 646         }
 647
 648         //If not elevated and UAC is not available -> user must be in admin group!
 649         if(!isAdmin)
 650         {
 651                 qDebug("UAC is disabled/unavailable -> checking for Administrators group");
 652                 isAdmin = user_is_admin_helper();
 653         }
 654
 655         return isAdmin;
 656 }
 657
 658 ///////////////////////////////////////////////////////////////////////////////
 659 // NETWORK STATE
 660 ///////////////////////////////////////////////////////////////////////////////
 661
 662 int MUtils::OS::network_status(void)
 663 {
 664         DWORD dwFlags;
 665         const BOOL ret = IsNetworkAlive(&dwFlags);
 666         if(GetLastError() == 0)
 667         {
 668                 return (ret != FALSE) ? NETWORK_TYPE_YES : NETWORK_TYPE_NON;
 669         }
 670         return NETWORK_TYPE_ERR;
 671 }
 672
 673 ///////////////////////////////////////////////////////////////////////////////
 674 // MESSAGE HANDLER
 675 ///////////////////////////////////////////////////////////////////////////////
 676
 677 bool MUtils::OS::handle_os_message(const void *const message, long *result)
 678 {
 679         const MSG *const msg = reinterpret_cast<const MSG*>(message);
 680
 681         switch(msg->message)
 682         {
 683         case WM_QUERYENDSESSION:
 684                 qWarning("WM_QUERYENDSESSION message received!");
 685                 *result = MUtils::GUI::broadcast(MUtils::GUI::USER_EVENT_QUERYENDSESSION, false) ? TRUE : FALSE;
 686                 return true;
 687         case WM_ENDSESSION:
 688                 qWarning("WM_ENDSESSION message received!");
 689                 if(msg->wParam == TRUE)
 690                 {
 691                         MUtils::GUI::broadcast(MUtils::GUI::USER_EVENT_ENDSESSION, false);
 692                         MUtils::GUI::force_quit();
 693                         exit(1);
 694                 }
 695                 *result = 0;
 696                 return true;
 697         default:
 698                 /*ignore this message and let Qt handle it*/
 699                 return false;
 700         }
 701 }
 702
 703 ///////////////////////////////////////////////////////////////////////////////
 704 // SLEEP
 705 ///////////////////////////////////////////////////////////////////////////////
 706
 707 void MUtils::OS::sleep_ms(const size_t &duration)
 708 {
 709         Sleep((DWORD) duration);
 710 }
 711
 712 ///////////////////////////////////////////////////////////////////////////////
 713 // EXECUTABLE CHECK
 714 ///////////////////////////////////////////////////////////////////////////////
 715
 716 bool MUtils::OS::is_executable_file(const QString &path)
 717 {
 718         bool bIsExecutable = false;
 719         DWORD binaryType;
 720         if(GetBinaryType(MUTILS_WCHR(QDir::toNativeSeparators(path)), &binaryType))
 721         {
 722                 bIsExecutable = (binaryType == SCS_32BIT_BINARY || binaryType == SCS_64BIT_BINARY);
 723         }
 724         return bIsExecutable;
 725 }
 726
 727 ///////////////////////////////////////////////////////////////////////////////
 728 // HIBERNATION / SHUTDOWN
 729 ///////////////////////////////////////////////////////////////////////////////
 730
 731 bool MUtils::OS::is_hibernation_supported(void)
 732 {
 733         bool hibernationSupported = false;
 734
 735         SYSTEM_POWER_CAPABILITIES pwrCaps;
 736         SecureZeroMemory(&pwrCaps, sizeof(SYSTEM_POWER_CAPABILITIES));
 737
 738         if(GetPwrCapabilities(&pwrCaps))
 739         {
 740                 hibernationSupported = pwrCaps.SystemS4 && pwrCaps.HiberFilePresent;
 741         }
 742
 743         return hibernationSupported;
 744 }
 745
 746 bool MUtils::OS::shutdown_computer(const QString &message, const unsigned long timeout, const bool forceShutdown, const bool hibernate)
 747 {
 748         HANDLE hToken = NULL;
 749
 750         if(OpenProcessToken(GetCurrentProcess(), TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken))
 751         {
 752                 TOKEN_PRIVILEGES privileges;
 753                 memset(&privileges, 0, sizeof(TOKEN_PRIVILEGES));
 754                 privileges.PrivilegeCount = 1;
 755                 privileges.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
 756
 757                 if(LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME, &privileges.Privileges[0].Luid))
 758                 {
 759                         if(AdjustTokenPrivileges(hToken, FALSE, &privileges, NULL, NULL, NULL))
 760                         {
 761                                 if(hibernate)
 762                                 {
 763                                         if(SetSuspendState(TRUE, TRUE, TRUE))
 764                                         {
 765                                                 return true;
 766                                         }
 767                                 }
 768                                 const DWORD reason = SHTDN_REASON_MAJOR_APPLICATION | SHTDN_REASON_FLAG_PLANNED;
 769                                 return InitiateSystemShutdownEx(NULL, const_cast<wchar_t*>(MUTILS_WCHR(message)), timeout, forceShutdown ? TRUE : FALSE, FALSE, reason);
 770                         }
 771                 }
 772         }
 773
 774         return false;
 775 }
 776
 777 ///////////////////////////////////////////////////////////////////////////////
 778 // FREE DISKSPACE
 779 ///////////////////////////////////////////////////////////////////////////////
 780
 781 bool MUtils::OS::free_diskspace(const QString &path, quint64 &freeSpace)
 782 {
 783         ULARGE_INTEGER freeBytesAvailable, totalNumberOfBytes, totalNumberOfFreeBytes;
 784         if(GetDiskFreeSpaceExW(reinterpret_cast<const wchar_t*>(QDir::toNativeSeparators(path).utf16()), &freeBytesAvailable, &totalNumberOfBytes, &totalNumberOfFreeBytes))
 785         {
 786                 freeSpace = freeBytesAvailable.QuadPart;
 787                 return true;;
 788         }
 789
 790         freeSpace = -1;
 791         return false;
 792 }
 793
 794 ///////////////////////////////////////////////////////////////////////////////
 795 // SHELL OPEN
 796 ///////////////////////////////////////////////////////////////////////////////
 797
 798 bool MUtils::OS::shell_open(const QWidget *parent, const QString &url, const QString &parameters, const QString &directory, const bool explore)
 799 {
 800         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;
 801 }
 802
 803 bool MUtils::OS::shell_open(const QWidget *parent, const QString &url, const bool explore)
 804 {
 805         return shell_open(parent, url, QString(), QString(), explore);
 806 }
 807
 808 ///////////////////////////////////////////////////////////////////////////////
 809 // OPEN MEDIA FILE
 810 ///////////////////////////////////////////////////////////////////////////////
 811
 812 bool MUtils::OS::open_media_file(const QString &mediaFilePath)
 813 {
 814         const static wchar_t *registryPrefix[2] = { L"SOFTWARE\\", L"SOFTWARE\\Wow6432Node\\" };
 815         const static wchar_t *registryKeys[3] =
 816         {
 817                 L"Microsoft\\Windows\\CurrentVersion\\Uninstall\\{97D341C8-B0D1-4E4A-A49A-C30B52F168E9}",
 818                 L"Microsoft\\Windows\\CurrentVersion\\Uninstall\\{DB9E4EAB-2717-499F-8D56-4CC8A644AB60}",
 819                 L"foobar2000"
 820         };
 821         const static wchar_t *appNames[4] = { L"smplayer_portable.exe", L"smplayer.exe", L"MPUI.exe", L"foobar2000.exe" };
 822         const static wchar_t *valueNames[2] = { L"InstallLocation", L"InstallDir" };
 823
 824         for(size_t i = 0; i < 3; i++)
 825         {
 826                 for(size_t j = 0; j < 2; j++)
 827                 {
 828                         QString mplayerPath;
 829                         HKEY registryKeyHandle = NULL;
 830
 831                         const QString currentKey = MUTILS_QSTR(registryPrefix[j]).append(MUTILS_QSTR(registryKeys[i]));
 832                         if(RegOpenKeyExW(HKEY_LOCAL_MACHINE, MUTILS_WCHR(currentKey), 0, KEY_READ, &registryKeyHandle) == ERROR_SUCCESS)
 833                         {
 834                                 for(size_t k = 0; k < 2; k++)
 835                                 {
 836                                         wchar_t Buffer[4096];
 837                                         DWORD BuffSize = sizeof(wchar_t*) * 4096;
 838                                         DWORD DataType = REG_NONE;
 839                                         if(RegQueryValueExW(registryKeyHandle, valueNames[k], 0, &DataType, reinterpret_cast<BYTE*>(Buffer), &BuffSize) == ERROR_SUCCESS)
 840                                         {
 841                                                 if((DataType == REG_SZ) || (DataType == REG_EXPAND_SZ) || (DataType == REG_LINK))
 842                                                 {
 843                                                         mplayerPath = MUTILS_QSTR(Buffer);
 844                                                         break;
 845                                                 }
 846                                         }
 847                                 }
 848                                 RegCloseKey(registryKeyHandle);
 849                         }
 850
 851                         if(!mplayerPath.isEmpty())
 852                         {
 853                                 QDir mplayerDir(mplayerPath);
 854                                 if(mplayerDir.exists())
 855                                 {
 856                                         for(size_t k = 0; k < 4; k++)
 857                                         {
 858                                                 if(mplayerDir.exists(MUTILS_QSTR(appNames[k])))
 859                                                 {
 860                                                         qDebug("Player found at:\n%s\n", MUTILS_UTF8(mplayerDir.absoluteFilePath(MUTILS_QSTR(appNames[k]))));
 861                                                         QProcess::startDetached(mplayerDir.absoluteFilePath(MUTILS_QSTR(appNames[k])), QStringList() << QDir::toNativeSeparators(mediaFilePath));
 862                                                         return true;
 863                                                 }
 864                                         }
 865                                 }
 866                         }
 867                 }
 868         }
 869         return false;
 870 }
 871
 872 ///////////////////////////////////////////////////////////////////////////////
 873 // DEBUGGER CHECK
 874 ///////////////////////////////////////////////////////////////////////////////
 875
 876 static bool change_process_priority_helper(const HANDLE hProcess, const int priority)
 877 {
 878         bool ok = false;
 879
 880         switch(qBound(-2, priority, 2))
 881         {
 882         case 2:
 883                 ok = (SetPriorityClass(hProcess, HIGH_PRIORITY_CLASS) == TRUE);
 884                 break;
 885         case 1:
 886                 if(!(ok = (SetPriorityClass(hProcess, ABOVE_NORMAL_PRIORITY_CLASS) == TRUE)))
 887                 {
 888                         ok = (SetPriorityClass(hProcess, HIGH_PRIORITY_CLASS) == TRUE);
 889                 }
 890                 break;
 891         case 0:
 892                 ok = (SetPriorityClass(hProcess, NORMAL_PRIORITY_CLASS) == TRUE);
 893                 break;
 894         case -1:
 895                 if(!(ok = (SetPriorityClass(hProcess, BELOW_NORMAL_PRIORITY_CLASS) == TRUE)))
 896                 {
 897                         ok = (SetPriorityClass(hProcess, IDLE_PRIORITY_CLASS) == TRUE);
 898                 }
 899                 break;
 900         case -2:
 901                 ok = (SetPriorityClass(hProcess, IDLE_PRIORITY_CLASS) == TRUE);
 902                 break;
 903         }
 904
 905         return ok;
 906 }
 907
 908 bool MUtils::OS::change_process_priority(const int priority)
 909 {
 910         return change_process_priority_helper(GetCurrentProcess(), priority);
 911 }
 912
 913 bool MUtils::OS::change_process_priority(const QProcess *proc, const int priority)
 914 {
 915         if(Q_PID qPid = proc->pid())
 916         {
 917                 return change_process_priority_helper(qPid->hProcess, priority);
 918         }
 919         else
 920         {
 921                 return false;
 922         }
 923 }
 924
 925 ///////////////////////////////////////////////////////////////////////////////
 926 // PROCESS ID
 927 ///////////////////////////////////////////////////////////////////////////////
 928
 929 quint32 MUtils::OS::process_id(const QProcess *proc)
 930 {
 931         PROCESS_INFORMATION *procInf = proc->pid();
 932         return (procInf) ? procInf->dwProcessId : NULL;
 933 }
 934
 935 ///////////////////////////////////////////////////////////////////////////////
 936 // SYSTEM TIMER
 937 ///////////////////////////////////////////////////////////////////////////////
 938
 939 bool MUtils::OS::setup_timer_resolution(const quint32 &interval)
 940 {
 941         return timeBeginPeriod(interval) == TIMERR_NOERROR;
 942 }
 943
 944 bool MUtils::OS::reset_timer_resolution(const quint32 &interval)
 945 {
 946         return timeEndPeriod(interval) == TIMERR_NOERROR;
 947 }
 948
 949 ///////////////////////////////////////////////////////////////////////////////
 950 // CHECK KEY STATE
 951 ///////////////////////////////////////////////////////////////////////////////
 952
 953 bool MUtils::OS::check_key_state_esc(void)
 954 {
 955         return (GetAsyncKeyState(VK_ESCAPE) & 0x0001) != 0;
 956 }
 957
 958 ///////////////////////////////////////////////////////////////////////////////
 959 // DEBUGGER CHECK
 960 ///////////////////////////////////////////////////////////////////////////////
 961
 962 #if (!(MUTILS_DEBUG))
 963 static __forceinline bool is_debugger_present(void)
 964 {
 965         __try
 966         {
 967                 CloseHandle((HANDLE)((DWORD_PTR)-3));
 968         }
 969         __except(1)
 970         {
 971                 return true;
 972         }
 973
 974         BOOL bHaveDebugger = FALSE;
 975         if(CheckRemoteDebuggerPresent(GetCurrentProcess(), &bHaveDebugger))
 976         {
 977                 if(bHaveDebugger) return true;
 978         }
 979
 980         return IsDebuggerPresent();
 981 }
 982 static __forceinline bool check_debugger_helper(void)
 983 {
 984         if(is_debugger_present())
 985         {
 986                 MUtils::OS::fatal_exit(L"Not a debug build. Please unload debugger and try again!");
 987                 return true;
 988         }
 989         return false;
 990 }
 991 #else
 992 #define check_debugger_helper() (false)
 993 #endif
 994
 995 void MUtils::OS::check_debugger(void)
 996 {
 997         check_debugger_helper();
 998 }
 999
1000 static volatile bool g_debug_check = check_debugger_helper();
1001
1002 ///////////////////////////////////////////////////////////////////////////////
1003 // FATAL EXIT
1004 ///////////////////////////////////////////////////////////////////////////////
1005
1006 static MUtils::Internal::CriticalSection g_fatal_exit_lock;
1007 static volatile bool g_fatal_exit_flag = true;
1008
1009 static DWORD WINAPI fatal_exit_helper(LPVOID lpParameter)
1010 {
1011         MUtils::OS::system_message_err(L"GURU MEDITATION", (LPWSTR) lpParameter);
1012         return 0;
1013 }
1014
1015 void MUtils::OS::fatal_exit(const wchar_t* const errorMessage)
1016 {
1017         g_fatal_exit_lock.enter();
1018
1019         if(!g_fatal_exit_flag)
1020         {
1021                 return; /*prevent recursive invocation*/
1022         }
1023
1024         g_fatal_exit_flag = false;
1025
1026         if(g_main_thread_id != GetCurrentThreadId())
1027         {
1028                 if(HANDLE hThreadMain = OpenThread(THREAD_SUSPEND_RESUME, FALSE, g_main_thread_id))
1029                 {
1030                         SuspendThread(hThreadMain); /*stop main thread*/
1031                 }
1032         }
1033
1034         if(HANDLE hThread = CreateThread(NULL, 0, fatal_exit_helper, (LPVOID) errorMessage, 0, NULL))
1035         {
1036                 WaitForSingleObject(hThread, INFINITE);
1037         }
1038
1039         for(;;)
1040         {
1041                 TerminateProcess(GetCurrentProcess(), 666);
1042         }
1043 }
1044
1045 ///////////////////////////////////////////////////////////////////////////////