src/OSSupport_Win32.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // MuldeR's Utilities for Qt
   3 // Copyright (C) 2004-2019 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 PSAPI_VERSION 1
  24 #define WIN32_LEAN_AND_MEAN 1
  25 #include <Windows.h>
  26 #include <Psapi.h>
  27 #include <Sensapi.h>
  28 #include <Shellapi.h>
  29 #include <PowrProf.h>
  30 #include <Mmsystem.h>
  31 #include <WinIoCtl.h>
  32 #pragma warning(push)
  33 #pragma warning(disable:4091) //for MSVC2015
  34 #include <ShlObj.h>
  35 #pragma warning(pop)
  36
  37 //CRT
  38 #include <io.h>
  39
  40 //Internal
  41 #include <MUtils/Global.h>
  42 #include <MUtils/OSSupport.h>
  43 #include <MUtils/GUI.h>
  44 #include "Internal.h"
  45 #include "CriticalSection_Win32.h"
  46 #include "Utils_Win32.h"
  47
  48 //Qt
  49 #include <QMap>
  50 #include <QReadWriteLock>
  51 #include <QDir>
  52 #include <QWidget>
  53 #include <QProcess>
  54 #include <QSet>
  55
  56 //Main thread ID
  57 static const DWORD g_main_thread_id = GetCurrentThreadId();
  58
  59 ///////////////////////////////////////////////////////////////////////////////
  60 // SYSTEM MESSAGE
  61 ///////////////////////////////////////////////////////////////////////////////
  62
  63 static const UINT g_msgBoxFlags = MB_TOPMOST | MB_TASKMODAL | MB_SETFOREGROUND;
  64
  65 void MUtils::OS::system_message_nfo(const wchar_t *const title, const wchar_t *const text)
  66 {
  67         MessageBoxW(NULL, text, title, g_msgBoxFlags | MB_ICONINFORMATION);
  68 }
  69
  70 void MUtils::OS::system_message_wrn(const wchar_t *const title, const wchar_t *const text)
  71 {
  72         MessageBoxW(NULL, text, title, g_msgBoxFlags | MB_ICONWARNING);
  73 }
  74
  75 void MUtils::OS::system_message_err(const wchar_t *const title, const wchar_t *const text)
  76 {
  77         MessageBoxW(NULL, text, title, g_msgBoxFlags | MB_ICONERROR);
  78 }
  79
  80 ///////////////////////////////////////////////////////////////////////////////
  81 // FETCH CLI ARGUMENTS
  82 ///////////////////////////////////////////////////////////////////////////////
  83
  84 static QReadWriteLock                          g_arguments_lock;
  85 static QScopedPointer<MUtils::OS::ArgumentMap> g_arguments_list;
  86
  87 const QStringList MUtils::OS::crack_command_line(const QString &command_line)
  88 {
  89         int nArgs = 0;
  90         LPWSTR *szArglist = CommandLineToArgvW(command_line.isNull() ? GetCommandLineW() : MUTILS_WCHR(command_line), &nArgs);
  91
  92         QStringList command_line_tokens;
  93         if(NULL != szArglist)
  94         {
  95                 for(int i = 0; i < nArgs; i++)
  96                 {
  97                         const QString argStr = MUTILS_QSTR(szArglist[i]).trimmed();
  98                         if(!argStr.isEmpty())
  99                         {
 100                                 command_line_tokens << argStr;
 101                         }
 102                 }
 103                 LocalFree(szArglist);
 104         }
 105
 106         return command_line_tokens;
 107 }
 108
 109 const MUtils::OS::ArgumentMap &MUtils::OS::arguments(void)
 110 {
 111         QReadLocker readLock(&g_arguments_lock);
 112
 113         //Already initialized?
 114         if(!g_arguments_list.isNull())
 115         {
 116                 return (*(g_arguments_list.data()));
 117         }
 118
 119         readLock.unlock();
 120         QWriteLocker writeLock(&g_arguments_lock);
 121
 122         //Still not initialized?
 123         if(!g_arguments_list.isNull())
 124         {
 125                 return (*(g_arguments_list.data()));
 126         }
 127
 128         g_arguments_list.reset(new ArgumentMap());
 129         const QStringList argList = crack_command_line();
 130
 131         if(!argList.isEmpty())
 132         {
 133                 const QString argPrefix = QLatin1String("--");
 134                 const QChar   separator = QLatin1Char('=');
 135
 136                 bool firstToken = true;
 137                 for(QStringList::ConstIterator iter = argList.constBegin(); iter != argList.constEnd(); iter++)
 138                 {
 139                         if(firstToken)
 140                         {
 141                                 firstToken = false;
 142                                 continue; /*skip executable file name*/
 143                         }
 144                         if(iter->startsWith(argPrefix))
 145                         {
 146                                 const QString argData = iter->mid(2).trimmed();
 147                                 if(argData.length() > 0)
 148                                 {
 149                                         const int separatorIndex = argData.indexOf(separator);
 150                                         if(separatorIndex > 0)
 151                                         {
 152                                                 const QString argKey = argData.left(separatorIndex).trimmed();
 153                                                 const QString argVal = argData.mid(separatorIndex + 1).trimmed();
 154                                                 g_arguments_list->insertMulti(argKey.toLower(), argVal);
 155                                         }
 156                                         else
 157                                         {
 158                                                 g_arguments_list->insertMulti(argData.toLower(), QString());
 159                                         }
 160                                 }
 161                         }
 162                 }
 163         }
 164         else if(argList.empty())
 165         {
 166                 qWarning("CommandLineToArgvW() has failed !!!");
 167         }
 168
 169         return (*(g_arguments_list.data()));
 170 }
 171
 172 ///////////////////////////////////////////////////////////////////////////////
 173 // COPY FILE
 174 ///////////////////////////////////////////////////////////////////////////////
 175
 176 typedef struct _progress_callback_data_t
 177 {
 178         MUtils::OS::progress_callback_t callback_function;
 179         void *user_data;
 180 }
 181 progress_callback_data_t;
 182
 183 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)
 184 {
 185         if(const progress_callback_data_t *data = (progress_callback_data_t*) lpData)
 186         {
 187                 const double progress = qBound(0.0, double(TotalBytesTransferred.QuadPart) / double(TotalFileSize.QuadPart), 1.0);
 188                 return data->callback_function(progress, data->user_data) ? PROGRESS_CONTINUE : PROGRESS_CANCEL;
 189         }
 190         return PROGRESS_CONTINUE;
 191 }
 192
 193 MUTILS_API bool MUtils::OS::copy_file(const QString &sourcePath, const QString &outputPath, const bool &overwrite, const progress_callback_t callback, void *const userData)
 194 {
 195         progress_callback_data_t callback_data = { callback, userData };
 196         BOOL cancel = FALSE;
 197         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));
 198
 199         if(result == FALSE)
 200         {
 201                 const DWORD errorCode = GetLastError();
 202                 if(errorCode != ERROR_REQUEST_ABORTED)
 203                 {
 204                         qWarning("CopyFile() failed with error code 0x%08X!", errorCode);
 205                 }
 206                 else
 207                 {
 208                         qWarning("CopyFile() operation was abroted by user!");
 209                 }
 210         }
 211
 212         return (result != FALSE);
 213 }
 214
 215 ///////////////////////////////////////////////////////////////////////////////
 216 // GET FILE VERSION
 217 ///////////////////////////////////////////////////////////////////////////////
 218
 219 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)
 220 {
 221         if(!GetFileVersionInfo(MUTILS_WCHR(fileName), 0, size, buffer))
 222         {
 223                 qWarning("GetFileVersionInfo() has failed, file version cannot be determined!");
 224                 return false;
 225         }
 226
 227         VS_FIXEDFILEINFO *verInfo;
 228         UINT verInfoLen;
 229         if(!VerQueryValue(buffer, L"\\", (LPVOID*)(&verInfo), &verInfoLen))
 230         {
 231                 qWarning("VerQueryValue() has failed, file version cannot be determined!");
 232                 return false;
 233         }
 234
 235         if(major) *major = quint16((verInfo->dwFileVersionMS >> 16) & 0x0000FFFF);
 236         if(minor) *minor = quint16((verInfo->dwFileVersionMS)       & 0x0000FFFF);
 237         if(patch) *patch = quint16((verInfo->dwFileVersionLS >> 16) & 0x0000FFFF);
 238         if(build) *build = quint16((verInfo->dwFileVersionLS)       & 0x0000FFFF);
 239
 240         return true;
 241 }
 242
 243 bool MUtils::OS::get_file_version(const QString fileName, quint16 *const major, quint16 *const minor, quint16 *const patch, quint16 *const build)
 244 {
 245         if(major) *major = 0U; if(minor) *minor = 0U;
 246         if(patch) *patch = 0U; if(build) *build = 0U;
 247
 248         const DWORD size = GetFileVersionInfoSize(MUTILS_WCHR(fileName), NULL);
 249         if(size < 1)
 250         {
 251                 qWarning("GetFileVersionInfoSize() has failed, file version cannot be determined!");
 252                 return false;
 253         }
 254
 255         PVOID buffer = _malloca(size);
 256         if(!buffer)
 257         {
 258                 qWarning("Memory allocation has failed!");
 259                 return false;
 260         }
 261
 262         const bool success = get_file_version_helper(fileName, buffer, size, major, minor, patch, build);
 263
 264         _freea(buffer);
 265         return success;
 266 }
 267
 268 ///////////////////////////////////////////////////////////////////////////////
 269 // OS VERSION DETECTION
 270 ///////////////////////////////////////////////////////////////////////////////
 271
 272 static bool g_os_version_initialized = false;
 273 static MUtils::OS::Version::os_version_t g_os_version_info = MUtils::OS::Version::UNKNOWN_OPSYS;
 274 static QReadWriteLock g_os_version_lock;
 275
 276 //Maps marketing names to the actual Windows NT versions
 277 static const struct
 278 {
 279         MUtils::OS::Version::os_version_t version;
 280         const char friendlyName[64];
 281 }
 282 g_os_version_lut[] =
 283 {
 284         { MUtils::OS::Version::WINDOWS_WIN2K, "Windows 2000"                                  },        //2000
 285         { MUtils::OS::Version::WINDOWS_WINXP, "Windows XP or Windows XP Media Center Edition" },        //XP
 286         { MUtils::OS::Version::WINDOWS_XPX64, "Windows Server 2003 or Windows XP x64"         },        //XP_x64
 287         { MUtils::OS::Version::WINDOWS_VISTA, "Windows Vista or Windows Server 2008"          },        //Vista
 288         { MUtils::OS::Version::WINDOWS_WIN70, "Windows 7 or Windows Server 2008 R2"           },        //7
 289         { MUtils::OS::Version::WINDOWS_WIN80, "Windows 8 or Windows Server 2012"              },        //8
 290         { MUtils::OS::Version::WINDOWS_WIN81, "Windows 8.1 or Windows Server 2012 R2"         },        //8.1
 291         { MUtils::OS::Version::WINDOWS_WN100, "Windows 10 or Windows Server 2016"             },        //10
 292         { MUtils::OS::Version::UNKNOWN_OPSYS, "N/A" }
 293 };
 294
 295 //OS version data dtructures
 296 namespace MUtils
 297 {
 298         namespace OS
 299         {
 300                 namespace Version
 301                 {
 302                         //Comparision operators for os_version_t
 303                         bool os_version_t::operator== (const os_version_t &rhs) const { return (type == rhs.type) && (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) || ((versionMinor != rhs.versionMinor)); }
 305                         bool os_version_t::operator>  (const os_version_t &rhs) const { return (type == rhs.type) && ((versionMajor > rhs.versionMajor) || ((versionMajor == rhs.versionMajor) && (versionMinor >  rhs.versionMinor))); }
 306                         bool os_version_t::operator>= (const os_version_t &rhs) const { return (type == rhs.type) && ((versionMajor > rhs.versionMajor) || ((versionMajor == rhs.versionMajor) && (versionMinor >= rhs.versionMinor))); }
 307                         bool os_version_t::operator<  (const os_version_t &rhs) const { return (type == rhs.type) && ((versionMajor < rhs.versionMajor) || ((versionMajor == rhs.versionMajor) && (versionMinor <  rhs.versionMinor))); }
 308                         bool os_version_t::operator<= (const os_version_t &rhs) const { return (type == rhs.type) && ((versionMajor < rhs.versionMajor) || ((versionMajor == rhs.versionMajor) && (versionMinor <= rhs.versionMinor))); }
 309
 310                         //Known Windows NT versions
 311                         const os_version_t WINDOWS_WIN2K = { OS_WINDOWS,  5, 0,  2195, 0 };     // 2000
 312                         const os_version_t WINDOWS_WINXP = { OS_WINDOWS,  5, 1,  2600, 0 };     // XP
 313                         const os_version_t WINDOWS_XPX64 = { OS_WINDOWS,  5, 2,  3790, 0 };     // XP_x64
 314                         const os_version_t WINDOWS_VISTA = { OS_WINDOWS,  6, 0,  6000, 0 };     // Vista
 315                         const os_version_t WINDOWS_WIN70 = { OS_WINDOWS,  6, 1,  7600, 0 };     // 7
 316                         const os_version_t WINDOWS_WIN80 = { OS_WINDOWS,  6, 2,  9200, 0 };     // 8
 317                         const os_version_t WINDOWS_WIN81 = { OS_WINDOWS,  6, 3,  9600, 0 };     // 8.1
 318                         const os_version_t WINDOWS_WN100 = { OS_WINDOWS, 10, 0, 10240, 0 };     // 10
 319
 320                         //Unknown OS
 321                         const os_version_t UNKNOWN_OPSYS = { OS_UNKNOWN, 0,  0,     0, 0 };     // N/A
 322                 }
 323         }
 324 }
 325
 326 static inline DWORD SAFE_ADD(const DWORD &a, const DWORD &b, const DWORD &limit = MAXDWORD)
 327 {
 328         return ((a >= limit) || (b >= limit) || ((limit - a) <= b)) ? limit : (a + b);
 329 }
 330
 331 static void initialize_os_version(OSVERSIONINFOEXW *const osInfo)
 332 {
 333         memset(osInfo, 0, sizeof(OSVERSIONINFOEXW));
 334         osInfo->dwOSVersionInfoSize = sizeof(OSVERSIONINFOEXW);
 335 }
 336
 337 static inline DWORD initialize_step_size(const DWORD &limit)
 338 {
 339         DWORD result = 1;
 340         while (result < limit)
 341         {
 342                 result = SAFE_ADD(result, result);
 343         }
 344         return result;
 345 }
 346
 347 #pragma warning(push)
 348 #pragma warning(disable: 4996)
 349
 350 static bool rtl_get_version(OSVERSIONINFOEXW *const osInfo)
 351 {
 352         typedef LONG(__stdcall *RtlGetVersion)(LPOSVERSIONINFOEXW);
 353         if (const HMODULE ntdll = GetModuleHandleW(L"ntdll"))
 354         {
 355                 if (const RtlGetVersion pRtlGetVersion = (RtlGetVersion)GetProcAddress(ntdll, "RtlGetVersion"))
 356                 {
 357                         initialize_os_version(osInfo);
 358                         if (pRtlGetVersion(osInfo) == 0)
 359                         {
 360                                 return true;
 361                         }
 362                 }
 363         }
 364
 365         //Fallback
 366         initialize_os_version(osInfo);
 367         return (GetVersionExW((LPOSVERSIONINFOW)osInfo) != FALSE);
 368 }
 369
 370 #pragma warning(pop)
 371
 372 static bool rtl_verify_version(OSVERSIONINFOEXW *const osInfo, const ULONG typeMask, const ULONGLONG condMask)
 373 {
 374         typedef LONG(__stdcall *RtlVerifyVersionInfo)(LPOSVERSIONINFOEXW, ULONG, ULONGLONG);
 375         if (const HMODULE ntdll = GetModuleHandleW(L"ntdll"))
 376         {
 377                 if (const RtlVerifyVersionInfo pRtlVerifyVersionInfo = (RtlVerifyVersionInfo)GetProcAddress(ntdll, "RtlVerifyVersionInfo"))
 378                 {
 379                         if (pRtlVerifyVersionInfo(osInfo, typeMask, condMask) == 0)
 380                         {
 381                                 return true;
 382                         }
 383                 }
 384         }
 385
 386         //Fallback
 387         return (VerifyVersionInfoW(osInfo, typeMask, condMask) != FALSE);
 388 }
 389
 390 static bool verify_os_version(const DWORD major, const DWORD minor)
 391 {
 392         OSVERSIONINFOEXW osvi;
 393         DWORDLONG dwlConditionMask = 0;
 394         initialize_os_version(&osvi);
 395
 396         //Initialize the OSVERSIONINFOEX structure
 397         osvi.dwMajorVersion = major;
 398         osvi.dwMinorVersion = minor;
 399         osvi.dwPlatformId = VER_PLATFORM_WIN32_NT;
 400
 401         //Initialize the condition mask
 402         VER_SET_CONDITION(dwlConditionMask, VER_MAJORVERSION, VER_GREATER_EQUAL);
 403         VER_SET_CONDITION(dwlConditionMask, VER_MINORVERSION, VER_GREATER_EQUAL);
 404         VER_SET_CONDITION(dwlConditionMask, VER_PLATFORMID,   VER_EQUAL);
 405
 406         // Perform the test
 407         const BOOL ret = rtl_verify_version(&osvi, VER_MAJORVERSION | VER_MINORVERSION | VER_PLATFORMID, dwlConditionMask);
 408
 409         //Error checking
 410         if(!ret)
 411         {
 412                 if(GetLastError() != ERROR_OLD_WIN_VERSION)
 413                 {
 414                         qWarning("VerifyVersionInfo() system call has failed!");
 415                 }
 416         }
 417
 418         return (ret != FALSE);
 419 }
 420
 421 static bool verify_os_build(const DWORD build)
 422 {
 423         OSVERSIONINFOEXW osvi;
 424         DWORDLONG dwlConditionMask = 0;
 425         initialize_os_version(&osvi);
 426
 427         //Initialize the OSVERSIONINFOEX structure
 428         osvi.dwBuildNumber = build;
 429         osvi.dwPlatformId = VER_PLATFORM_WIN32_NT;
 430
 431         //Initialize the condition mask
 432         VER_SET_CONDITION(dwlConditionMask, VER_BUILDNUMBER, VER_GREATER_EQUAL);
 433         VER_SET_CONDITION(dwlConditionMask, VER_PLATFORMID, VER_EQUAL);
 434
 435         // Perform the test
 436         const BOOL ret = rtl_verify_version(&osvi, VER_BUILDNUMBER | VER_PLATFORMID, dwlConditionMask);
 437
 438         //Error checking
 439         if (!ret)
 440         {
 441                 if (GetLastError() != ERROR_OLD_WIN_VERSION)
 442                 {
 443                         qWarning("VerifyVersionInfo() system call has failed!");
 444                 }
 445         }
 446
 447         return (ret != FALSE);
 448 }
 449
 450 static bool verify_os_spack(const WORD spack)
 451 {
 452         OSVERSIONINFOEXW osvi;
 453         DWORDLONG dwlConditionMask = 0;
 454         initialize_os_version(&osvi);
 455
 456         //Initialize the OSVERSIONINFOEX structure
 457         osvi.wServicePackMajor = spack;
 458         osvi.dwPlatformId = VER_PLATFORM_WIN32_NT;
 459
 460         //Initialize the condition mask
 461         VER_SET_CONDITION(dwlConditionMask, VER_SERVICEPACKMAJOR, VER_GREATER_EQUAL);
 462         VER_SET_CONDITION(dwlConditionMask, VER_PLATFORMID, VER_EQUAL);
 463
 464         // Perform the test
 465         const BOOL ret = rtl_verify_version(&osvi, VER_SERVICEPACKMAJOR | VER_PLATFORMID, dwlConditionMask);
 466
 467         //Error checking
 468         if (!ret)
 469         {
 470                 if (GetLastError() != ERROR_OLD_WIN_VERSION)
 471                 {
 472                         qWarning("VerifyVersionInfo() system call has failed!");
 473                 }
 474         }
 475
 476         return (ret != FALSE);
 477 }
 478
 479 static bool get_real_os_version(unsigned int *const major, unsigned int *const minor, unsigned int *const build, unsigned int *const spack, bool *const pbOverride)
 480 {
 481         static const DWORD MAX_VERSION = MAXWORD;
 482         static const DWORD MAX_BUILDNO = MAXINT;
 483         static const DWORD MAX_SRVCPCK = MAXWORD;
 484
 485         *major = *minor = *build = *spack = 0U;
 486         *pbOverride = false;
 487
 488         //Initialize local variables
 489         OSVERSIONINFOEXW osvi;
 490         memset(&osvi, 0, sizeof(OSVERSIONINFOEXW));
 491         osvi.dwOSVersionInfoSize = sizeof(OSVERSIONINFOEXW);
 492
 493         //Try GetVersionEx() first
 494         if(rtl_get_version(&osvi) == FALSE)
 495         {
 496                 qWarning("GetVersionEx() has failed, cannot detect Windows version!");
 497                 return false;
 498         }
 499
 500         //Make sure we are running on NT
 501         if(osvi.dwPlatformId == VER_PLATFORM_WIN32_NT)
 502         {
 503                 *major = osvi.dwMajorVersion;
 504                 *minor = osvi.dwMinorVersion;
 505                 *build = osvi.dwBuildNumber;
 506                 *spack = osvi.wServicePackMajor;
 507         }
 508         else
 509         {
 510                 if (verify_os_version(4, 0))
 511                 {
 512                         *major = 4;
 513                         *build = 1381;
 514                         *pbOverride = true;
 515                 }
 516                 else
 517                 {
 518                         qWarning("Not running on Windows NT, unsupported operating system!");
 519                         return false;
 520                 }
 521         }
 522
 523         //Major Version
 524         for (DWORD nextMajor = (*major) + 1; nextMajor <= MAX_VERSION; nextMajor++)
 525         {
 526                 if (verify_os_version(nextMajor, 0))
 527                 {
 528                         *major = nextMajor;
 529                         *minor = 0;
 530                         *pbOverride = true;
 531                         continue;
 532                 }
 533                 break;
 534         }
 535
 536         //Minor Version
 537         for (DWORD nextMinor = (*minor) + 1; nextMinor <= MAX_VERSION; nextMinor++)
 538         {
 539                 if (verify_os_version((*major), nextMinor))
 540                 {
 541                         *minor = nextMinor;
 542                         *pbOverride = true;
 543                         continue;
 544                 }
 545                 break;
 546         }
 547
 548         //Build Version
 549         if (verify_os_build(SAFE_ADD((*build), 1, MAX_BUILDNO)))
 550         {
 551                 DWORD stepSize = initialize_step_size(MAX_BUILDNO);
 552                 for (DWORD nextBuildNo = SAFE_ADD((*build), stepSize, MAX_BUILDNO); (*build) < MAX_BUILDNO; nextBuildNo = SAFE_ADD((*build), stepSize, MAX_BUILDNO))
 553                 {
 554                         if (verify_os_build(nextBuildNo))
 555                         {
 556                                 *build = nextBuildNo;
 557                                 *pbOverride = true;
 558                                 continue;
 559                         }
 560                         if (stepSize > 1)
 561                         {
 562                                 stepSize = stepSize / 2;
 563                                 continue;
 564                         }
 565                         break;
 566                 }
 567         }
 568
 569         //Service Pack
 570         if (verify_os_spack(SAFE_ADD((*spack), 1, MAX_SRVCPCK)))
 571         {
 572                 DWORD stepSize = initialize_step_size(MAX_SRVCPCK);
 573                 for (DWORD nextSPackNo = SAFE_ADD((*spack), stepSize, MAX_SRVCPCK); (*spack) < MAX_SRVCPCK; nextSPackNo = SAFE_ADD((*spack), stepSize, MAX_SRVCPCK))
 574                 {
 575                         if (verify_os_spack(nextSPackNo))
 576                         {
 577                                 *build = nextSPackNo;
 578                                 *pbOverride = true;
 579                                 continue;
 580                         }
 581                         if (stepSize > 1)
 582                         {
 583                                 stepSize = stepSize / 2;
 584                                 continue;
 585                         }
 586                         break;
 587                 }
 588         }
 589
 590         return true;
 591 }
 592
 593 const MUtils::OS::Version::os_version_t &MUtils::OS::os_version(void)
 594 {
 595         QReadLocker readLock(&g_os_version_lock);
 596
 597         //Already initialized?
 598         if(g_os_version_initialized)
 599         {
 600                 return g_os_version_info;
 601         }
 602
 603         readLock.unlock();
 604         QWriteLocker writeLock(&g_os_version_lock);
 605
 606         //Initialized now?
 607         if(g_os_version_initialized)
 608         {
 609                 return g_os_version_info;
 610         }
 611
 612         //Detect OS version
 613         unsigned int major, minor, build, spack; bool overrideFlg;
 614         if(get_real_os_version(&major, &minor, &build, &spack, &overrideFlg))
 615         {
 616                 g_os_version_info.type = Version::OS_WINDOWS;
 617                 g_os_version_info.versionMajor = major;
 618                 g_os_version_info.versionMinor = minor;
 619                 g_os_version_info.versionBuild = build;
 620                 g_os_version_info.versionSPack = spack;
 621                 g_os_version_info.overrideFlag = overrideFlg;
 622         }
 623         else
 624         {
 625                 qWarning("Failed to determine the operating system version!");
 626         }
 627
 628         //Completed
 629         g_os_version_initialized = true;
 630         return g_os_version_info;
 631 }
 632
 633 const char *MUtils::OS::os_friendly_name(const MUtils::OS::Version::os_version_t &os_version)
 634 {
 635         for(size_t i = 0; g_os_version_lut[i].version != MUtils::OS::Version::UNKNOWN_OPSYS; i++)
 636         {
 637                 if(os_version == g_os_version_lut[i].version)
 638                 {
 639                         return g_os_version_lut[i].friendlyName;
 640                 }
 641         }
 642
 643         return NULL;
 644 }
 645
 646 ///////////////////////////////////////////////////////////////////////////////
 647 // OS ARCHITECTURE DETECTION
 648 ///////////////////////////////////////////////////////////////////////////////
 649
 650 static bool g_os_arch_initialized = false;
 651 static MUtils::OS::os_arch_t g_os_arch = MUtils::OS::os_arch_t(0);
 652 static QReadWriteLock g_os_arch_lock;
 653
 654 static MUtils::OS::os_arch_t detect_os_arch(void)
 655 {
 656 #if (!(defined(_M_X64) || defined(_M_IA64)))
 657         typedef BOOL(WINAPI * IsWow64ProcessFun)(__in HANDLE hProcess, __out PBOOL Wow64Process);
 658         const IsWow64ProcessFun isWow64ProcessPtr = MUtils::Win32Utils::resolve<IsWow64ProcessFun>(QLatin1String("kernel32"), QLatin1String("IsWow64Process"));
 659         if (isWow64ProcessPtr)
 660         {
 661                 BOOL x64flag = FALSE;
 662                 if (isWow64ProcessPtr(GetCurrentProcess(), &x64flag))
 663                 {
 664                         if (x64flag)
 665                         {
 666                                 return MUtils::OS::ARCH_X64;
 667                         }
 668                 }
 669         }
 670         return MUtils::OS::ARCH_X86;
 671 #else
 672         return MUtils::OS::ARCH_X64;
 673 #endif
 674 }
 675
 676 const MUtils::OS::os_arch_t &MUtils::OS::os_architecture(void)
 677 {
 678         QReadLocker readLock(&g_os_arch_lock);
 679
 680         //Already initialized?
 681         if (g_os_arch_initialized)
 682         {
 683                 return g_os_arch;
 684         }
 685
 686         readLock.unlock();
 687         QWriteLocker writeLock(&g_os_arch_lock);
 688
 689         //Initialized now?
 690         if (g_os_arch_initialized)
 691         {
 692                 return g_os_arch;
 693         }
 694
 695         g_os_arch = detect_os_arch();
 696         g_os_arch_initialized = MUTILS_BOOLIFY(g_os_arch);
 697         return g_os_arch;
 698 }
 699
 700 ///////////////////////////////////////////////////////////////////////////////
 701 // WINE DETECTION
 702 ///////////////////////////////////////////////////////////////////////////////
 703
 704 static bool g_wine_deteced = false;
 705 static bool g_wine_initialized = false;
 706 static QReadWriteLock g_wine_lock;
 707
 708 static const bool detect_wine(void)
 709 {
 710         void *const ptr = MUtils::Win32Utils::resolve<void*>(QLatin1String("ntdll"), QLatin1String("wine_get_version"));
 711         return (ptr != NULL);
 712 }
 713
 714 const bool &MUtils::OS::running_on_wine(void)
 715 {
 716         QReadLocker readLock(&g_wine_lock);
 717
 718         //Already initialized?
 719         if(g_wine_initialized)
 720         {
 721                 return g_wine_deteced;
 722         }
 723
 724         readLock.unlock();
 725         QWriteLocker writeLock(&g_wine_lock);
 726
 727         //Initialized now?
 728         if(g_wine_initialized)
 729         {
 730                 return g_wine_deteced;
 731         }
 732
 733         //Try to detect Wine
 734         g_wine_deteced = detect_wine();
 735         g_wine_initialized = true;
 736
 737         return g_wine_deteced;
 738 }
 739
 740 ///////////////////////////////////////////////////////////////////////////////
 741 // KNWON FOLDERS
 742 ///////////////////////////////////////////////////////////////////////////////
 743
 744 static QReadWriteLock                         g_known_folders_lock;
 745 static QScopedPointer<QHash<size_t, QString>> g_known_folders_data;
 746
 747 typedef HRESULT (WINAPI *SHGetKnownFolderPathProc)(const GUID &rfid, DWORD dwFlags, HANDLE hToken, PWSTR *ppszPath);
 748 typedef HRESULT (WINAPI *SHGetFolderPathProc)(HWND hwndOwner, int nFolder, HANDLE hToken, DWORD dwFlags, LPWSTR pszPath);
 749
 750 static const struct
 751 {
 752         MUtils::OS::known_folder_t id;
 753         INT32 csidl;
 754         GUID known_folder_id;
 755 }
 756 s_known_folders_lut[] =
 757 {
 758         { MUtils::OS::FOLDER_PROFILE_USER,  0x0028, { 0x5E6C858F, 0x0E22, 0x4760, { 0x9A, 0xFE, 0xEA, 0x33, 0x17, 0xB6, 0x71, 0x73 } } },  //CSIDL_PROFILE
 759         { MUtils::OS::FOLDER_PROFILE_PUBL,  0x0000, { 0xDFDF76A2, 0xC82A, 0x4D63, { 0x90, 0x6A, 0x56, 0x44, 0xAC, 0x45, 0x73, 0x85 } } },  //FOLDERID_Public
 760         { MUtils::OS::FOLDER_APPDATA_ROAM,  0x001A, { 0x3EB685DB, 0x65F9, 0x4CF6, { 0xA0, 0x3A, 0xE3, 0xEF, 0x65, 0x72, 0x9F, 0x3D } } },  //CSIDL_APPDATA
 761         { MUtils::OS::FOLDER_APPDATA_LOCA,  0x001C, { 0xF1B32785, 0x6FBA, 0x4FCF, { 0x9D, 0x55, 0x7B, 0x8E, 0x7F, 0x15, 0x70, 0x91 } } },  //CSIDL_LOCAL_APPDATA
 762         { MUtils::OS::FOLDER_DOCS_USER,     0x0005, { 0xFDD39AD0, 0x238F, 0x46AF, { 0xAD, 0xB4, 0x6C, 0x85, 0x48, 0x03, 0x69, 0xC7 } } },  //CSIDL_MYDOCUMENTS
 763         { MUtils::OS::FOLDER_DOCS_PUBL,     0x002E, { 0xED4824AF, 0xDCE4, 0x45A8, { 0x81, 0xE2, 0xFC, 0x79, 0x65, 0x08, 0x36, 0x34 } } },  //CSIDL_COMMON_DOCUMENTS
 764         { MUtils::OS::FOLDER_DESKTOP_USER,  0x0010, { 0xB4BFCC3A, 0xDB2C, 0x424C, { 0xB0, 0x29, 0x7F, 0xE9, 0x9A, 0x87, 0xC6, 0x41 } } },  //CSIDL_DESKTOPDIRECTORY
 765         { MUtils::OS::FOLDER_DESKTOP_PUBL,  0x0019, { 0xC4AA340D, 0xF20F, 0x4863, { 0xAF, 0xEF, 0xF8, 0x7E, 0xF2, 0xE6, 0xBA, 0x25 } } },  //CSIDL_COMMON_DESKTOPDIRECTORY
 766         { MUtils::OS::FOLDER_PICTURES_USER, 0x0027, { 0x33E28130, 0x4E1E, 0x4676, { 0x83, 0x5A, 0x98, 0x39, 0x5C, 0x3B, 0xC3, 0xBB } } },  //CSIDL_MYPICTURES
 767         { MUtils::OS::FOLDER_PICTURES_PUBL, 0x0036, { 0xB6EBFB86, 0x6907, 0x413C, { 0x9A, 0xF7, 0x4F, 0xC2, 0xAB, 0xF0, 0x7C, 0xC5 } } },  //CSIDL_COMMON_PICTURES
 768         { MUtils::OS::FOLDER_MUSIC_USER,    0x000D, { 0x4BD8D571, 0x6D19, 0x48D3, { 0xBE, 0x97, 0x42, 0x22, 0x20, 0x08, 0x0E, 0x43 } } },  //CSIDL_MYMUSIC
 769         { MUtils::OS::FOLDER_MUSIC_PUBL,    0x0035, { 0x3214FAB5, 0x9757, 0x4298, { 0xBB, 0x61, 0x92, 0xA9, 0xDE, 0xAA, 0x44, 0xFF } } },  //CSIDL_COMMON_MUSIC
 770         { MUtils::OS::FOLDER_VIDEO_USER,    0x000E, { 0x18989B1D, 0x99B5, 0x455B, { 0x84, 0x1C, 0xAB, 0x7C, 0x74, 0xE4, 0xDD, 0xFC } } },  //CSIDL_MYVIDEO
 771         { MUtils::OS::FOLDER_VIDEO_PUBL,    0x0037, { 0x2400183A, 0x6185, 0x49FB, { 0xA2, 0xD8, 0x4A, 0x39, 0x2A, 0x60, 0x2B, 0xA3 } } },  //CSIDL_COMMON_VIDEO
 772         { MUtils::OS::FOLDER_PROGRAMS_DEF,  0x0026, { 0x905E63B6, 0xC1BF, 0x494E, { 0xB2, 0x9C, 0x65, 0xB7, 0x32, 0xD3, 0xD2, 0x1A } } },  //CSIDL_PROGRAM_FILES
 773         { MUtils::OS::FOLDER_PROGRAMS_X86,  0x002A, { 0x7C5A40EF, 0xA0FB, 0x4BFC, { 0x87, 0x4A, 0xC0, 0xF2, 0xE0, 0xB9, 0xFA, 0x8E } } },  //CSIDL_PROGRAM_FILESX86
 774         { MUtils::OS::FOLDER_PROGRAMS_X64,  0x0000, { 0x6D809377, 0x6AF0, 0x444B, { 0x89, 0x57, 0xA3, 0x77, 0x3F, 0x02, 0x20, 0x0E } } },  //FOLDERID_ProgramFilesX64 (not supported for 32-bit applications)
 775         { MUtils::OS::FOLDER_SYSROOT,       0x0024, { 0xF38BF404, 0x1D43, 0x42F2, { 0x93, 0x05, 0x67, 0xDE, 0x0B, 0x28, 0xFC, 0x23 } } },  //CSIDL_WINDOWS
 776         { MUtils::OS::FOLDER_SYSTEM_DEF,    0x0025, { 0x1AC14E77, 0x02E7, 0x4E5D, { 0xB7, 0x44, 0x2E, 0xB1, 0xAE, 0x51, 0x98, 0xB7 } } },  //CSIDL_SYSTEM
 777         { MUtils::OS::FOLDER_SYSTEM_X86,    0x0029, { 0xD65231B0, 0xB2F1, 0x4857, { 0xA4, 0xCE, 0xA8, 0xE7, 0xC6, 0xEA, 0x7D, 0x27 } } },  //CSIDL_SYSTEMX86
 778         { static_cast<MUtils::OS::known_folder_t>(0) }
 779 };
 780
 781 static QString known_folder_verify(const wchar_t *const path)
 782 {
 783         const QDir folderPath = QDir(QDir::fromNativeSeparators(MUTILS_QSTR(path)));
 784         if (folderPath.exists())
 785         {
 786                 const QString absolutePath = folderPath.absolutePath();
 787                 const HANDLE handle = CreateFileW(MUTILS_WCHR(QDir::toNativeSeparators(absolutePath)), 0U, FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS, NULL);
 788                 if (handle != INVALID_HANDLE_VALUE)
 789                 {
 790                         SetHandleInformation(handle, HANDLE_FLAG_PROTECT_FROM_CLOSE, HANDLE_FLAG_PROTECT_FROM_CLOSE);
 791                         return absolutePath;
 792                 }
 793         }
 794
 795         return QString(); /*failed*/
 796 }
 797
 798 static QString known_folder_fallback(const size_t folderId)
 799 {
 800         static const DWORD s_shgfpTypes[3] =
 801         {
 802                 0, /*SHGFP_TYPE_CURRENT*/
 803                 1, /*SHGFP_TYPE_DEFAULT*/
 804                 MAXDWORD
 805         };
 806
 807         static const INT32 s_shgfpFlags[3] =
 808         {
 809                 0x0000, /*No extra flags*/
 810                 0x8000, /*SHGFP_FLAG_CREATE*/
 811                 MAXINT32
 812         };
 813
 814         if (s_known_folders_lut[folderId].csidl)
 815         {
 816                 const SHGetFolderPathProc getFolderPath = MUtils::Win32Utils::resolve<SHGetFolderPathProc>(QLatin1String("shell32"), QLatin1String("SHGetFolderPathW"));
 817                 if (getFolderPath)
 818                 {
 819                         QVector<WCHAR> pathBuffer(MAX_PATH);
 820                         for (size_t i = 0; s_shgfpTypes[i] != MAXDWORD; ++i)
 821                         {
 822                                 for (size_t j = 0; s_shgfpFlags[j] != MAXINT32; ++j)
 823                                 {
 824                                         if (getFolderPath(NULL, s_known_folders_lut[folderId].csidl | s_shgfpFlags[j], NULL, s_shgfpTypes[i], pathBuffer.data()) == S_OK)
 825                                         {
 826                                                 //MessageBoxW(0, pathBuffer.data(), L"SHGetFolderPathW", MB_TOPMOST);
 827                                                 const QString folderPath = known_folder_verify(pathBuffer.data());
 828                                                 if (!folderPath.isEmpty())
 829                                                 {
 830                                                         return folderPath;
 831                                                 }
 832                                         }
 833                                 }
 834                         }
 835                 }
 836         }
 837
 838         return QString(); /*failed!*/
 839 }
 840
 841 static QString known_folder_detect(const size_t folderId)
 842 {
 843         typedef enum
 844         {
 845                 KF_FLAG_DEFAULT      = 0x00000000,
 846                 KF_FLAG_DEFAULT_PATH = 0x00000400,
 847                 KF_FLAG_CREATE       = 0x00008000
 848         }
 849         kf_flag_t;
 850
 851         static const DWORD s_kfFlags[5] =
 852         {
 853                 KF_FLAG_DEFAULT,
 854                 KF_FLAG_CREATE,
 855                 KF_FLAG_DEFAULT_PATH,
 856                 KF_FLAG_DEFAULT_PATH | KF_FLAG_CREATE,
 857                 MAXDWORD
 858         };
 859
 860         const SHGetKnownFolderPathProc getKnownFolderPath = MUtils::Win32Utils::resolve<SHGetKnownFolderPathProc>(QLatin1String("shell32"), QLatin1String("SHGetKnownFolderPath"));
 861         if (getKnownFolderPath)
 862         {
 863                 for (size_t i = 0; s_kfFlags[i] != MAXDWORD; ++i)
 864                 {
 865                         WCHAR* path = NULL;
 866                         if (getKnownFolderPath(s_known_folders_lut[folderId].known_folder_id, s_kfFlags[i], NULL, &path) == S_OK)
 867                         {
 868                                 //MessageBoxW(0, path, L"SHGetKnownFolderPath", MB_TOPMOST);
 869                                 const QString folderPath = known_folder_verify(path);
 870                                 CoTaskMemFree(path);
 871                                 if (!folderPath.isEmpty())
 872                                 {
 873                                         return folderPath;
 874                                 }
 875                         }
 876                 }
 877         }
 878
 879         return known_folder_fallback(folderId); /*fallback!*/
 880 }
 881
 882 static size_t known_folder_decode(const MUtils::OS::known_folder_t folder_id)
 883 {
 884         for (size_t i = 0; s_known_folders_lut[i].id; ++i)
 885         {
 886                 if (s_known_folders_lut[i].id == folder_id)
 887                 {
 888                         return i;
 889                 }
 890         }
 891         qWarning("Invalid 'known' folder was requested!");
 892         return SIZE_MAX;
 893 }
 894
 895 const QString &MUtils::OS::known_folder(const known_folder_t folder_id)
 896 {
 897         //Map to numeric id
 898         const size_t folderId = known_folder_decode(folder_id);
 899         if (folderId == SIZE_MAX)
 900         {
 901                 return Internal::g_empty;
 902         }
 903
 904         //Obtain read lock
 905         QReadLocker readLock(&g_known_folders_lock);
 906
 907         //Already in cache?
 908         if(!g_known_folders_data.isNull())
 909         {
 910                 if(g_known_folders_data->contains(folderId))
 911                 {
 912                         return (*g_known_folders_data)[folderId];
 913                 }
 914         }
 915
 916         //Obtain write lock to initialize
 917         readLock.unlock();
 918         QWriteLocker writeLock(&g_known_folders_lock);
 919
 920         //Still not in cache?
 921         if(!g_known_folders_data.isNull())
 922         {
 923                 if(g_known_folders_data->contains(folderId))
 924                 {
 925                         return (*g_known_folders_data)[folderId];
 926                 }
 927         }
 928
 929         //Initialize on first call
 930         if(g_known_folders_data.isNull())
 931         {
 932                 g_known_folders_data.reset(new QHash<size_t, QString>());
 933         }
 934
 935         //Detect path now!
 936         const QString folderPath = known_folder_detect(folderId);
 937
 938         //Update cache
 939         if (!folderPath.isEmpty())
 940         {
 941                 g_known_folders_data->insert(folderId, folderPath);
 942                 return (*g_known_folders_data)[folderId];
 943         }
 944
 945         return Internal::g_empty;
 946 }
 947
 948 ///////////////////////////////////////////////////////////////////////////////
 949 // CURRENT DATA & TIME
 950 ///////////////////////////////////////////////////////////////////////////////
 951
 952 QDate MUtils::OS::current_date(void)
 953 {
 954         const DWORD MAX_PROC = 1024;
 955         QScopedArrayPointer<DWORD> processes(new DWORD[MAX_PROC]);
 956         DWORD bytesReturned = 0;
 957
 958         if(!EnumProcesses(processes.data(), sizeof(DWORD) * MAX_PROC, &bytesReturned))
 959         {
 960                 return QDate::currentDate();
 961         }
 962
 963         const DWORD procCount = bytesReturned / sizeof(DWORD);
 964         ULARGE_INTEGER lastStartTime;
 965         memset(&lastStartTime, 0, sizeof(ULARGE_INTEGER));
 966
 967         for(DWORD i = 0; i < procCount; i++)
 968         {
 969                 if(HANDLE hProc = OpenProcess(PROCESS_QUERY_INFORMATION, FALSE, processes[i]))
 970                 {
 971                         FILETIME processTime[4];
 972                         if(GetProcessTimes(hProc, &processTime[0], &processTime[1], &processTime[2], &processTime[3]))
 973                         {
 974                                 ULARGE_INTEGER timeCreation;
 975                                 timeCreation.LowPart  = processTime[0].dwLowDateTime;
 976                                 timeCreation.HighPart = processTime[0].dwHighDateTime;
 977                                 if(timeCreation.QuadPart > lastStartTime.QuadPart)
 978                                 {
 979                                         lastStartTime.QuadPart = timeCreation.QuadPart;
 980                                 }
 981                         }
 982                         CloseHandle(hProc);
 983                 }
 984         }
 985
 986         FILETIME lastStartTime_fileTime;
 987         lastStartTime_fileTime.dwHighDateTime = lastStartTime.HighPart;
 988         lastStartTime_fileTime.dwLowDateTime  = lastStartTime.LowPart;
 989
 990         FILETIME lastStartTime_localTime;
 991         if(!FileTimeToLocalFileTime(&lastStartTime_fileTime, &lastStartTime_localTime))
 992         {
 993                 memcpy(&lastStartTime_localTime, &lastStartTime_fileTime, sizeof(FILETIME));
 994         }
 995
 996         SYSTEMTIME lastStartTime_system;
 997         if(!FileTimeToSystemTime(&lastStartTime_localTime, &lastStartTime_system))
 998         {
 999                 memset(&lastStartTime_system, 0, sizeof(SYSTEMTIME));
1000                 lastStartTime_system.wYear = 1970; lastStartTime_system.wMonth = lastStartTime_system.wDay = 1;
1001         }
1002
1003         const QDate currentDate = QDate::currentDate();
1004         const QDate processDate = QDate(lastStartTime_system.wYear, lastStartTime_system.wMonth, lastStartTime_system.wDay);
1005         return (currentDate >= processDate) ? currentDate : processDate;
1006 }
1007
1008 quint64 MUtils::OS::current_file_time(void)
1009 {
1010         FILETIME fileTime;
1011         GetSystemTimeAsFileTime(&fileTime);
1012
1013         ULARGE_INTEGER temp;
1014         temp.HighPart = fileTime.dwHighDateTime;
1015         temp.LowPart = fileTime.dwLowDateTime;
1016
1017         return temp.QuadPart;
1018 }
1019
1020 ///////////////////////////////////////////////////////////////////////////////
1021 // FILE PATH FROM FD
1022 ///////////////////////////////////////////////////////////////////////////////
1023
1024 typedef DWORD(_stdcall *GetPathNameByHandleFun)(HANDLE hFile, LPWSTR lpszFilePath, DWORD cchFilePath, DWORD dwFlags);
1025
1026 static QString get_file_path_drive_list(void)
1027 {
1028         QString list;
1029         const DWORD len = GetLogicalDriveStringsW(0, NULL);
1030         if (len > 0)
1031         {
1032                 if (wchar_t *const buffer = (wchar_t*) _malloca(sizeof(wchar_t) * len))
1033                 {
1034                         const DWORD ret = GetLogicalDriveStringsW(len, buffer);
1035                         if ((ret > 0) && (ret < len))
1036                         {
1037                                 const wchar_t *ptr = buffer;
1038                                 while (const size_t current_len = wcslen(ptr))
1039                                 {
1040                                         list.append(QChar(*reinterpret_cast<const ushort*>(ptr)));
1041                                         ptr += (current_len + 1);
1042                                 }
1043                         }
1044                         _freea(buffer);
1045                 }
1046         }
1047         return list;
1048 }
1049
1050 static void get_file_path_translate(QString &path)
1051 {
1052         static const DWORD BUFSIZE = 2048;
1053         wchar_t buffer[BUFSIZE], drive[3];
1054
1055         const QString driveList = get_file_path_drive_list();
1056         wcscpy_s(drive, 3, L"?:");
1057         for (const wchar_t *current = MUTILS_WCHR(driveList); *current; current++)
1058         {
1059                 drive[0] = (*current);
1060                 if (QueryDosDeviceW(drive, buffer, MAX_PATH))
1061                 {
1062                         const QString prefix = MUTILS_QSTR(buffer);
1063                         if (path.startsWith(prefix, Qt::CaseInsensitive))
1064                         {
1065                                 path.remove(0, prefix.length()).prepend(QLatin1Char(':')).prepend(QChar(*reinterpret_cast<const ushort*>(current)));
1066                                 break;
1067                         }
1068                 }
1069         }
1070 }
1071
1072 static QString get_file_path_fallback(const HANDLE &hFile)
1073 {
1074         QString filePath;
1075
1076         const HANDLE hFileMap = CreateFileMappingW(hFile, NULL, PAGE_READONLY, 0, 1, NULL);
1077         if (hFileMap)
1078         {
1079                 void *const pMem = MapViewOfFile(hFileMap, FILE_MAP_READ, 0, 0, 1);
1080                 if (pMem)
1081                 {
1082                         static const size_t BUFFSIZE = 2048;
1083                         wchar_t buffer[BUFFSIZE];
1084                         if (GetMappedFileNameW(GetCurrentProcess(), pMem, buffer, BUFFSIZE) > 0)
1085                         {
1086                                 filePath = MUTILS_QSTR(buffer);
1087                         }
1088                         UnmapViewOfFile(pMem);
1089                 }
1090                 CloseHandle(hFileMap);
1091         }
1092
1093         if (!filePath.isEmpty())
1094         {
1095                 get_file_path_translate(filePath);
1096         }
1097
1098         return filePath;
1099 }
1100
1101 QString MUtils::OS::get_file_path(const int &fd)
1102 {
1103         if (fd >= 0)
1104         {
1105                 const GetPathNameByHandleFun getPathNameByHandleFun = MUtils::Win32Utils::resolve<GetPathNameByHandleFun>(QLatin1String("kernel32"), QLatin1String("GetFinalPathNameByHandleW"));
1106                 if (!getPathNameByHandleFun)
1107                 {
1108                         return get_file_path_fallback((HANDLE)_get_osfhandle(fd));
1109                 }
1110
1111                 const HANDLE handle = (HANDLE) _get_osfhandle(fd);
1112                 const DWORD len = getPathNameByHandleFun(handle, NULL, 0, FILE_NAME_OPENED);
1113                 if (len > 0)
1114                 {
1115                         if (wchar_t *const buffer = (wchar_t*)_malloca(sizeof(wchar_t) * len))
1116                         {
1117                                 const DWORD ret = getPathNameByHandleFun(handle, buffer, len, FILE_NAME_OPENED);
1118                                 if ((ret > 0) && (ret < len))
1119                                 {
1120                                         const QString path(MUTILS_QSTR(buffer));
1121                                         return path.startsWith(QLatin1String("\\\\?\\")) ? path.mid(4) : path;
1122                                 }
1123                                 _freea(buffer);
1124                         }
1125                 }
1126         }
1127
1128         return QString();
1129 }
1130
1131 ///////////////////////////////////////////////////////////////////////////////
1132 // PROCESS ELEVATION
1133 ///////////////////////////////////////////////////////////////////////////////
1134
1135 static bool user_is_admin_helper(void)
1136 {
1137         HANDLE hToken = NULL;
1138         if(!OpenProcessToken(GetCurrentProcess(), TOKEN_QUERY, &hToken))
1139         {
1140                 return false;
1141         }
1142
1143         DWORD dwSize = 0;
1144         if(!GetTokenInformation(hToken, TokenGroups, NULL, 0, &dwSize))
1145         {
1146                 if(GetLastError() != ERROR_INSUFFICIENT_BUFFER)
1147                 {
1148                         CloseHandle(hToken);
1149                         return false;
1150                 }
1151         }
1152
1153         PTOKEN_GROUPS lpGroups = (PTOKEN_GROUPS) malloc(dwSize);
1154         if(!lpGroups)
1155         {
1156                 CloseHandle(hToken);
1157                 return false;
1158         }
1159
1160         if(!GetTokenInformation(hToken, TokenGroups, lpGroups, dwSize, &dwSize))
1161         {
1162                 free(lpGroups);
1163                 CloseHandle(hToken);
1164                 return false;
1165         }
1166
1167         PSID lpSid = NULL; SID_IDENTIFIER_AUTHORITY Authority = {SECURITY_NT_AUTHORITY};
1168         if(!AllocateAndInitializeSid(&Authority, 2, SECURITY_BUILTIN_DOMAIN_RID, DOMAIN_ALIAS_RID_ADMINS, 0, 0, 0, 0, 0, 0, &lpSid))
1169         {
1170                 free(lpGroups);
1171                 CloseHandle(hToken);
1172                 return false;
1173         }
1174
1175         bool bResult = false;
1176         for(DWORD i = 0; i < lpGroups->GroupCount; i++)
1177         {
1178                 if(EqualSid(lpSid, lpGroups->Groups[i].Sid))
1179                 {
1180                         bResult = true;
1181                         break;
1182                 }
1183         }
1184
1185         FreeSid(lpSid);
1186         free(lpGroups);
1187         CloseHandle(hToken);
1188         return bResult;
1189 }
1190
1191 bool MUtils::OS::is_elevated(bool *bIsUacEnabled)
1192 {
1193         if(bIsUacEnabled)
1194         {
1195                 *bIsUacEnabled = false;
1196         }
1197
1198         bool bIsProcessElevated = false;
1199         HANDLE hToken = NULL;
1200
1201         if(OpenProcessToken(GetCurrentProcess(), TOKEN_QUERY, &hToken))
1202         {
1203                 TOKEN_ELEVATION_TYPE tokenElevationType;
1204                 DWORD returnLength;
1205                 if(GetTokenInformation(hToken, TokenElevationType, &tokenElevationType, sizeof(TOKEN_ELEVATION_TYPE), &returnLength))
1206                 {
1207                         if(returnLength == sizeof(TOKEN_ELEVATION_TYPE))
1208                         {
1209                                 switch(tokenElevationType)
1210                                 {
1211                                 case TokenElevationTypeDefault:
1212                                         qDebug("Process token elevation type: Default -> UAC is disabled.\n");
1213                                         break;
1214                                 case TokenElevationTypeFull:
1215                                         qWarning("Process token elevation type: Full -> potential security risk!\n");
1216                                         bIsProcessElevated = true;
1217                                         if(bIsUacEnabled) *bIsUacEnabled = true;
1218                                         break;
1219                                 case TokenElevationTypeLimited:
1220                                         qDebug("Process token elevation type: Limited -> not elevated.\n");
1221                                         if(bIsUacEnabled) *bIsUacEnabled = true;
1222                                         break;
1223                                 default:
1224                                         qWarning("Unknown tokenElevationType value: %d", tokenElevationType);
1225                                         break;
1226                                 }
1227                         }
1228                         else
1229                         {
1230                                 qWarning("GetTokenInformation() return an unexpected size!");
1231                         }
1232                 }
1233                 CloseHandle(hToken);
1234         }
1235         else
1236         {
1237                 qWarning("Failed to open process token!");
1238         }
1239
1240         return bIsProcessElevated;
1241 }
1242
1243 bool MUtils::OS::user_is_admin(void)
1244 {
1245         bool isAdmin = false;
1246
1247         //Check for process elevation and UAC support first!
1248         if(MUtils::OS::is_elevated(&isAdmin))
1249         {
1250                 qWarning("Process is elevated -> user is admin!");
1251                 return true;
1252         }
1253
1254         //If not elevated and UAC is not available -> user must be in admin group!
1255         if(!isAdmin)
1256         {
1257                 qDebug("UAC is disabled/unavailable -> checking for Administrators group");
1258                 isAdmin = user_is_admin_helper();
1259         }
1260
1261         return isAdmin;
1262 }
1263
1264 ///////////////////////////////////////////////////////////////////////////////
1265 // NETWORK STATE
1266 ///////////////////////////////////////////////////////////////////////////////
1267
1268 int MUtils::OS::network_status(void)
1269 {
1270         DWORD dwFlags;
1271         const BOOL ret = IsNetworkAlive(&dwFlags);
1272         if(GetLastError() == 0)
1273         {
1274                 return (ret != FALSE) ? NETWORK_TYPE_YES : NETWORK_TYPE_NON;
1275         }
1276         return NETWORK_TYPE_ERR;
1277 }
1278
1279 ///////////////////////////////////////////////////////////////////////////////
1280 // MESSAGE HANDLER
1281 ///////////////////////////////////////////////////////////////////////////////
1282
1283 bool MUtils::OS::handle_os_message(const void *const message, long *result)
1284 {
1285         const MSG *const msg = reinterpret_cast<const MSG*>(message);
1286
1287         switch(msg->message)
1288         {
1289         case WM_QUERYENDSESSION:
1290                 qWarning("WM_QUERYENDSESSION message received!");
1291                 *result = MUtils::GUI::broadcast(MUtils::GUI::USER_EVENT_QUERYENDSESSION, false) ? TRUE : FALSE;
1292                 return true;
1293         case WM_ENDSESSION:
1294                 qWarning("WM_ENDSESSION message received!");
1295                 if(msg->wParam == TRUE)
1296                 {
1297                         MUtils::GUI::broadcast(MUtils::GUI::USER_EVENT_ENDSESSION, false);
1298                         MUtils::GUI::force_quit();
1299                         exit(1);
1300                 }
1301                 *result = 0;
1302                 return true;
1303         default:
1304                 /*ignore this message and let Qt handle it*/
1305                 return false;
1306         }
1307 }
1308
1309 ///////////////////////////////////////////////////////////////////////////////
1310 // SLEEP
1311 ///////////////////////////////////////////////////////////////////////////////
1312
1313 void MUtils::OS::sleep_ms(const size_t &duration)
1314 {
1315         Sleep((DWORD) duration);
1316 }
1317
1318 ///////////////////////////////////////////////////////////////////////////////
1319 // EXECUTABLE CHECK
1320 ///////////////////////////////////////////////////////////////////////////////
1321
1322 static int g_library_as_image_resource_supported = -1;
1323 static QReadWriteLock g_library_as_image_resource_supported_lock;
1324
1325 static bool library_as_image_resource_supported()
1326 {
1327         QReadLocker readLocker(&g_library_as_image_resource_supported_lock);
1328         if (g_library_as_image_resource_supported >= 0)
1329         {
1330                 return (g_library_as_image_resource_supported > 0);
1331         }
1332
1333         readLocker.unlock();
1334         QWriteLocker writeLocker(&g_library_as_image_resource_supported_lock);
1335
1336         if (g_library_as_image_resource_supported < 0)
1337         {
1338                 g_library_as_image_resource_supported = 0;
1339                 OSVERSIONINFOEXW osvi;
1340                 if (rtl_get_version(&osvi))
1341                 {
1342                         if ((osvi.dwPlatformId == VER_PLATFORM_WIN32_NT) && (osvi.dwMajorVersion >= 6U))
1343                         {
1344                                 g_library_as_image_resource_supported = 1;
1345                         }
1346                 }
1347         }
1348
1349         return (g_library_as_image_resource_supported > 0);
1350 }
1351
1352 bool MUtils::OS::is_executable_file(const QString &path)
1353 {
1354         DWORD binaryType;
1355         if(GetBinaryType(MUTILS_WCHR(QDir::toNativeSeparators(path)), &binaryType))
1356         {
1357                 return ((binaryType == SCS_32BIT_BINARY) || (binaryType == SCS_64BIT_BINARY));
1358         }
1359
1360         const DWORD errorCode = GetLastError();
1361         qWarning("GetBinaryType() failed with error: 0x%08X", errorCode);
1362         return false;
1363 }
1364
1365 bool MUtils::OS::is_library_file(const QString &path)
1366 {
1367         const DWORD flags = library_as_image_resource_supported() ? (LOAD_LIBRARY_AS_DATAFILE | LOAD_LIBRARY_AS_IMAGE_RESOURCE) : (LOAD_LIBRARY_AS_DATAFILE | DONT_RESOLVE_DLL_REFERENCES);
1368         if (const HMODULE hMod = LoadLibraryEx(MUTILS_WCHR(QDir::toNativeSeparators(path)), NULL, flags))
1369         {
1370                 FreeLibrary(hMod);
1371                 return true;
1372         }
1373
1374         const DWORD errorCode = GetLastError();
1375         qWarning("LoadLibraryEx() failed with error: 0x%08X", errorCode);
1376         return false;
1377 }
1378
1379 ///////////////////////////////////////////////////////////////////////////////
1380 // HIBERNATION / SHUTDOWN
1381 ///////////////////////////////////////////////////////////////////////////////
1382
1383 bool MUtils::OS::is_hibernation_supported(void)
1384 {
1385         bool hibernationSupported = false;
1386
1387         SYSTEM_POWER_CAPABILITIES pwrCaps;
1388         SecureZeroMemory(&pwrCaps, sizeof(SYSTEM_POWER_CAPABILITIES));
1389
1390         if(GetPwrCapabilities(&pwrCaps))
1391         {
1392                 hibernationSupported = pwrCaps.SystemS4 && pwrCaps.HiberFilePresent;
1393         }
1394
1395         return hibernationSupported;
1396 }
1397
1398 bool MUtils::OS::shutdown_computer(const QString &message, const unsigned long timeout, const bool forceShutdown, const bool hibernate)
1399 {
1400         HANDLE hToken = NULL;
1401
1402         if(OpenProcessToken(GetCurrentProcess(), TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken))
1403         {
1404                 TOKEN_PRIVILEGES privileges;
1405                 memset(&privileges, 0, sizeof(TOKEN_PRIVILEGES));
1406                 privileges.PrivilegeCount = 1;
1407                 privileges.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
1408
1409                 if(LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME, &privileges.Privileges[0].Luid))
1410                 {
1411                         if(AdjustTokenPrivileges(hToken, FALSE, &privileges, NULL, NULL, NULL))
1412                         {
1413                                 if(hibernate)
1414                                 {
1415                                         if(SetSuspendState(TRUE, TRUE, TRUE))
1416                                         {
1417                                                 return true;
1418                                         }
1419                                 }
1420                                 const DWORD reason = SHTDN_REASON_MAJOR_APPLICATION | SHTDN_REASON_FLAG_PLANNED;
1421                                 return InitiateSystemShutdownEx(NULL, const_cast<wchar_t*>(MUTILS_WCHR(message)), timeout, forceShutdown ? TRUE : FALSE, FALSE, reason);
1422                         }
1423                 }
1424         }
1425
1426         return false;
1427 }
1428
1429 ///////////////////////////////////////////////////////////////////////////////
1430 // FREE DISKSPACE
1431 ///////////////////////////////////////////////////////////////////////////////
1432
1433 bool MUtils::OS::free_diskspace(const QString &path, quint64 &freeSpace)
1434 {
1435         ULARGE_INTEGER freeBytesAvailable, totalNumberOfBytes, totalNumberOfFreeBytes;
1436         if(GetDiskFreeSpaceExW(reinterpret_cast<const wchar_t*>(QDir::toNativeSeparators(path).utf16()), &freeBytesAvailable, &totalNumberOfBytes, &totalNumberOfFreeBytes))
1437         {
1438                 freeSpace = freeBytesAvailable.QuadPart;
1439                 return true;;
1440         }
1441
1442         freeSpace = -1;
1443         return false;
1444 }
1445
1446 ///////////////////////////////////////////////////////////////////////////////
1447 // DRIVE TYPE
1448 ///////////////////////////////////////////////////////////////////////////////
1449
1450 static wchar_t get_drive_letter(const QString &path)
1451 {
1452         QString nativePath = QDir::toNativeSeparators(path);
1453         while (nativePath.startsWith("\\\\?\\") || nativePath.startsWith("\\\\.\\"))
1454         {
1455                 nativePath = QDir::toNativeSeparators(nativePath.mid(4));
1456         }
1457         if ((path.length() > 1) && (path[1] == QLatin1Char(':')))
1458         {
1459                 const wchar_t letter = static_cast<wchar_t>(path[0].unicode());
1460                 if (((letter >= 'A') && (letter <= 'Z')) || ((letter >= 'a') && (letter <= 'z')))
1461                 {
1462                         return towupper(letter);
1463                 }
1464         }
1465         return L'\0'; /*invalid path spec*/
1466 }
1467
1468 static QSet<DWORD> get_physical_drive_ids(const wchar_t drive_letter)
1469 {
1470         QSet<DWORD> physical_drives;
1471         wchar_t driveName[8];
1472         _snwprintf_s(driveName, 8, _TRUNCATE, L"\\\\.\\%c:", drive_letter);
1473         const HANDLE hDrive = CreateFileW(driveName, 0, FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, OPEN_EXISTING, 0, NULL);
1474         if (hDrive && (hDrive != INVALID_HANDLE_VALUE))
1475         {
1476                 const size_t BUFF_SIZE = sizeof(VOLUME_DISK_EXTENTS) + (32U * sizeof(DISK_EXTENT));
1477                 VOLUME_DISK_EXTENTS *const diskExtents = (VOLUME_DISK_EXTENTS*)_malloca(BUFF_SIZE);
1478                 DWORD dwSize;
1479                 if (DeviceIoControl(hDrive, IOCTL_VOLUME_GET_VOLUME_DISK_EXTENTS, NULL, 0, (LPVOID)diskExtents, (DWORD)BUFF_SIZE, (LPDWORD)&dwSize, NULL))
1480                 {
1481                         for (DWORD index = 0U; index < diskExtents->NumberOfDiskExtents; ++index)
1482                         {
1483                                 physical_drives.insert(diskExtents->Extents[index].DiskNumber);
1484                         }
1485                 }
1486                 _freea(diskExtents);
1487                 CloseHandle(hDrive);
1488         }
1489         return physical_drives;
1490 }
1491
1492 static bool incurs_seek_penalty(const DWORD device_id)
1493 {
1494         wchar_t driveName[24];
1495         _snwprintf_s(driveName, 24, _TRUNCATE, L"\\\\?\\PhysicalDrive%u", device_id);
1496         const HANDLE hDevice = CreateFileW(driveName, 0, FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, OPEN_EXISTING, 0, NULL);
1497         bool seeking_penalty = true;
1498         if (hDevice && (hDevice != INVALID_HANDLE_VALUE))
1499         {
1500                 STORAGE_PROPERTY_QUERY spq;
1501                 DEVICE_SEEK_PENALTY_DESCRIPTOR dspd;
1502                 memset(&spq, 0, sizeof(STORAGE_PROPERTY_QUERY));
1503                 spq.PropertyId = (STORAGE_PROPERTY_ID)StorageDeviceSeekPenaltyProperty;
1504                 spq.QueryType = PropertyStandardQuery;
1505                 DWORD dwSize;
1506                 if (DeviceIoControl(hDevice, IOCTL_STORAGE_QUERY_PROPERTY, (LPVOID)&spq, (DWORD)sizeof(spq), (LPVOID)&dspd, (DWORD)sizeof(dspd), (LPDWORD)&dwSize, NULL))
1507                 {
1508                         seeking_penalty = dspd.IncursSeekPenalty;
1509                 }
1510                 CloseHandle(hDevice);
1511         }
1512         return seeking_penalty;
1513 }
1514
1515 static bool is_fast_seeking_drive(const wchar_t drive_letter)
1516 {
1517         bool fast_seeking = false;
1518         const QSet<DWORD> physical_drive_ids = get_physical_drive_ids(drive_letter);
1519         if (!physical_drive_ids.empty())
1520         {
1521                 fast_seeking = true;
1522                 for (QSet<DWORD>::const_iterator iter = physical_drive_ids.constBegin(); iter != physical_drive_ids.constEnd(); ++iter)
1523                 {
1524                         fast_seeking = fast_seeking && (!incurs_seek_penalty(*iter));
1525                 }
1526         }
1527         return fast_seeking;
1528 }
1529
1530 MUtils::OS::drive_type_t MUtils::OS::get_drive_type(const QString &path, bool *fast_seeking)
1531 {
1532         drive_type_t driveType = DRIVE_TYPE_ERR;
1533         const wchar_t driveLetter = get_drive_letter(path);
1534         if (driveLetter)
1535         {
1536                 wchar_t driveName[8];
1537                 _snwprintf_s(driveName, 8, _TRUNCATE, L"\\\\.\\%c:\\", driveLetter);
1538                 switch (GetDriveTypeW(driveName))
1539                 {
1540                         case DRIVE_REMOVABLE: driveType = DRIVE_TYPE_FDD; break;
1541                         case DRIVE_FIXED:     driveType = DRIVE_TYPE_HDD; break;
1542                         case DRIVE_REMOTE:    driveType = DRIVE_TYPE_NET; break;
1543                         case DRIVE_CDROM:     driveType = DRIVE_TYPE_OPT; break;
1544                         case DRIVE_RAMDISK:   driveType = DRIVE_TYPE_RAM; break;
1545                 }
1546         }
1547         if (fast_seeking)
1548         {
1549                 if (driveType == DRIVE_TYPE_HDD)
1550                 {
1551                         *fast_seeking = is_fast_seeking_drive(driveLetter);
1552                 }
1553                 else
1554                 {
1555                         *fast_seeking = (driveType == DRIVE_TYPE_RAM);
1556                 }
1557         }
1558         return driveType;
1559 }
1560
1561 ///////////////////////////////////////////////////////////////////////////////
1562 // SHELL OPEN
1563 ///////////////////////////////////////////////////////////////////////////////
1564
1565 bool MUtils::OS::shell_open(const QWidget *parent, const QString &url, const QString &parameters, const QString &directory, const bool explore)
1566 {
1567         return ((int) ShellExecuteW((parent ? reinterpret_cast<HWND>(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;
1568 }
1569
1570 bool MUtils::OS::shell_open(const QWidget *parent, const QString &url, const bool explore)
1571 {
1572         return shell_open(parent, url, QString(), QString(), explore);
1573 }
1574
1575 ///////////////////////////////////////////////////////////////////////////////
1576 // OPEN MEDIA FILE
1577 ///////////////////////////////////////////////////////////////////////////////
1578
1579 bool MUtils::OS::open_media_file(const QString &mediaFilePath)
1580 {
1581         const static wchar_t *registryPrefix[2] = { L"SOFTWARE\\", L"SOFTWARE\\Wow6432Node\\" };
1582         const static wchar_t *registryKeys[3] =
1583         {
1584                 L"Microsoft\\Windows\\CurrentVersion\\Uninstall\\{97D341C8-B0D1-4E4A-A49A-C30B52F168E9}",
1585                 L"Microsoft\\Windows\\CurrentVersion\\Uninstall\\{DB9E4EAB-2717-499F-8D56-4CC8A644AB60}",
1586                 L"foobar2000"
1587         };
1588         const static wchar_t *appNames[4] = { L"smplayer_portable.exe", L"smplayer.exe", L"MPUI.exe", L"foobar2000.exe" };
1589         const static wchar_t *valueNames[2] = { L"InstallLocation", L"InstallDir" };
1590
1591         for(size_t i = 0; i < 3; i++)
1592         {
1593                 for(size_t j = 0; j < 2; j++)
1594                 {
1595                         QString mplayerPath;
1596                         HKEY registryKeyHandle = NULL;
1597
1598                         const QString currentKey = MUTILS_QSTR(registryPrefix[j]).append(MUTILS_QSTR(registryKeys[i]));
1599                         if(RegOpenKeyExW(HKEY_LOCAL_MACHINE, MUTILS_WCHR(currentKey), 0, KEY_READ, &registryKeyHandle) == ERROR_SUCCESS)
1600                         {
1601                                 for(size_t k = 0; k < 2; k++)
1602                                 {
1603                                         wchar_t Buffer[4096];
1604                                         DWORD BuffSize = sizeof(wchar_t*) * 4096;
1605                                         DWORD DataType = REG_NONE;
1606                                         if(RegQueryValueExW(registryKeyHandle, valueNames[k], 0, &DataType, reinterpret_cast<BYTE*>(Buffer), &BuffSize) == ERROR_SUCCESS)
1607                                         {
1608                                                 if((DataType == REG_SZ) || (DataType == REG_EXPAND_SZ) || (DataType == REG_LINK))
1609                                                 {
1610                                                         mplayerPath = MUTILS_QSTR(Buffer);
1611                                                         break;
1612                                                 }
1613                                         }
1614                                 }
1615                                 RegCloseKey(registryKeyHandle);
1616                         }
1617
1618                         if(!mplayerPath.isEmpty())
1619                         {
1620                                 QDir mplayerDir(mplayerPath);
1621                                 if(mplayerDir.exists())
1622                                 {
1623                                         for(size_t k = 0; k < 4; k++)
1624                                         {
1625                                                 if(mplayerDir.exists(MUTILS_QSTR(appNames[k])))
1626                                                 {
1627                                                         qDebug("Player found at:\n%s\n", MUTILS_UTF8(mplayerDir.absoluteFilePath(MUTILS_QSTR(appNames[k]))));
1628                                                         QProcess::startDetached(mplayerDir.absoluteFilePath(MUTILS_QSTR(appNames[k])), QStringList() << QDir::toNativeSeparators(mediaFilePath));
1629                                                         return true;
1630                                                 }
1631                                         }
1632                                 }
1633                         }
1634                 }
1635         }
1636         return false;
1637 }
1638
1639 ///////////////////////////////////////////////////////////////////////////////
1640 // DEBUGGER CHECK
1641 ///////////////////////////////////////////////////////////////////////////////
1642
1643 static bool change_process_priority_helper(const HANDLE hProcess, const int priority)
1644 {
1645         bool ok = false;
1646
1647         switch(qBound(-2, priority, 2))
1648         {
1649         case 2:
1650                 ok = (SetPriorityClass(hProcess, HIGH_PRIORITY_CLASS) == TRUE);
1651                 break;
1652         case 1:
1653                 if(!(ok = (SetPriorityClass(hProcess, ABOVE_NORMAL_PRIORITY_CLASS) == TRUE)))
1654                 {
1655                         ok = (SetPriorityClass(hProcess, HIGH_PRIORITY_CLASS) == TRUE);
1656                 }
1657                 break;
1658         case 0:
1659                 ok = (SetPriorityClass(hProcess, NORMAL_PRIORITY_CLASS) == TRUE);
1660                 break;
1661         case -1:
1662                 if(!(ok = (SetPriorityClass(hProcess, BELOW_NORMAL_PRIORITY_CLASS) == TRUE)))
1663                 {
1664                         ok = (SetPriorityClass(hProcess, IDLE_PRIORITY_CLASS) == TRUE);
1665                 }
1666                 break;
1667         case -2:
1668                 ok = (SetPriorityClass(hProcess, IDLE_PRIORITY_CLASS) == TRUE);
1669                 break;
1670         }
1671
1672         return ok;
1673 }
1674
1675 bool MUtils::OS::change_process_priority(const int priority)
1676 {
1677         return change_process_priority_helper(GetCurrentProcess(), priority);
1678 }
1679
1680 bool MUtils::OS::change_process_priority(const QProcess *proc, const int priority)
1681 {
1682         if(Q_PID qPid = proc->pid())
1683         {
1684                 return change_process_priority_helper(qPid->hProcess, priority);
1685         }
1686         else
1687         {
1688                 return false;
1689         }
1690 }
1691
1692 ///////////////////////////////////////////////////////////////////////////////
1693 // PROCESS ID
1694 ///////////////////////////////////////////////////////////////////////////////
1695
1696 quint32 MUtils::OS::process_id(void)
1697 {
1698         return GetCurrentProcessId();
1699 }
1700
1701 quint32 MUtils::OS::process_id(const QProcess *const proc)
1702 {
1703         PROCESS_INFORMATION *procInf = proc->pid();
1704         return (procInf) ? procInf->dwProcessId : 0;
1705 }
1706
1707 quint32 MUtils::OS::thread_id(void)
1708 {
1709         return GetCurrentThreadId();
1710 }
1711
1712 quint32 MUtils::OS::thread_id(const QProcess *const proc)
1713 {
1714         PROCESS_INFORMATION *procInf = proc->pid();
1715         return (procInf) ? procInf->dwThreadId : 0;
1716 }
1717
1718 ///////////////////////////////////////////////////////////////////////////////
1719 // PROCESS SUSPEND/RESUME
1720 ///////////////////////////////////////////////////////////////////////////////
1721
1722 bool MUtils::OS::suspend_process(const QProcess *proc, const bool suspend)
1723 {
1724         if(Q_PID pid = proc->pid())
1725         {
1726                 if(suspend)
1727                 {
1728                         return (SuspendThread(pid->hThread) != ((DWORD) -1));
1729                 }
1730                 else
1731                 {
1732                         return (ResumeThread(pid->hThread)  != ((DWORD) -1));
1733                 }
1734         }
1735         else
1736         {
1737                 return false;
1738         }
1739 }
1740
1741 ///////////////////////////////////////////////////////////////////////////////
1742 // SYSTEM TIMER
1743 ///////////////////////////////////////////////////////////////////////////////
1744
1745 bool MUtils::OS::setup_timer_resolution(const quint32 &interval)
1746 {
1747         return timeBeginPeriod(interval) == TIMERR_NOERROR;
1748 }
1749
1750 bool MUtils::OS::reset_timer_resolution(const quint32 &interval)
1751 {
1752         return timeEndPeriod(interval) == TIMERR_NOERROR;
1753 }
1754
1755 ///////////////////////////////////////////////////////////////////////////////
1756 // SET FILE TIME
1757 ///////////////////////////////////////////////////////////////////////////////
1758
1759 static QScopedPointer<QDateTime> s_epoch;
1760 static QReadWriteLock            s_epochLock;
1761
1762 static const QDateTime *get_epoch(void)
1763 {
1764         QReadLocker rdLock(&s_epochLock);
1765
1766         if (s_epoch.isNull())
1767         {
1768                 rdLock.unlock();
1769                 QWriteLocker wrLock(&s_epochLock);
1770                 if (s_epoch.isNull())
1771                 {
1772                         s_epoch.reset(new QDateTime(QDate(1601, 1, 1), QTime(0, 0, 0, 0), Qt::UTC));
1773                 }
1774                 wrLock.unlock();
1775                 rdLock.relock();
1776         }
1777
1778         return s_epoch.data();
1779 }
1780
1781 static FILETIME *qt_time_to_file_time(FILETIME *const fileTime, const QDateTime &dateTime)
1782 {
1783         memset(fileTime, 0, sizeof(FILETIME));
1784
1785         if (const QDateTime *const epoch = get_epoch())
1786         {
1787                 const qint64 msecs = epoch->msecsTo(dateTime);
1788                 if (msecs > 0)
1789                 {
1790                         const quint64 ticks = 10000U * quint64(msecs);
1791                         fileTime->dwHighDateTime = ((ticks >> 32) & 0xFFFFFFFF);
1792                         fileTime->dwLowDateTime = (ticks & 0xFFFFFFFF);
1793                         return fileTime;
1794                 }
1795         }
1796
1797         return NULL;
1798 }
1799
1800 static bool set_file_time(const HANDLE hFile, const QDateTime &created, const QDateTime &lastMod, const QDateTime &lastAcc)
1801 {
1802         FILETIME ftCreated, ftLastMod, ftLastAcc;
1803
1804         FILETIME *const pCreated = created.isValid() ? qt_time_to_file_time(&ftCreated, created) : NULL;
1805         FILETIME *const pLastMod = lastMod.isValid() ? qt_time_to_file_time(&ftLastMod, lastMod) : NULL;
1806         FILETIME *const pLastAcc = lastAcc.isValid() ? qt_time_to_file_time(&ftLastAcc, lastAcc) : NULL;
1807
1808         if (pCreated || pLastMod || pLastAcc)
1809         {
1810                 return (SetFileTime(hFile, pCreated, pLastAcc, pLastMod) != FALSE);
1811         }
1812
1813         return false;
1814 }
1815
1816 bool MUtils::OS::set_file_time(const QFile &file, const QDateTime &created, const QDateTime &lastMod, const QDateTime &lastAcc)
1817 {
1818         const int fd = file.handle();
1819         if (fd >= 0)
1820         {
1821                 return set_file_time((HANDLE)_get_osfhandle(fd), created, lastMod, lastAcc);
1822         }
1823         return false;
1824 }
1825
1826 bool MUtils::OS::set_file_time(const QString &path, const QDateTime &created, const QDateTime &lastMod, const QDateTime &lastAcc)
1827 {
1828         const HANDLE hFile = CreateFileW(MUTILS_WCHR(path), FILE_WRITE_ATTRIBUTES, FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, 0);
1829         bool okay = false;
1830         if ((hFile != NULL) && (hFile != INVALID_HANDLE_VALUE))
1831         {
1832                 okay = set_file_time(hFile, created, lastMod, lastAcc);
1833                 CloseHandle(hFile);
1834         }
1835         return okay;
1836 }
1837
1838 ///////////////////////////////////////////////////////////////////////////////
1839 // CHECK KEY STATE
1840 ///////////////////////////////////////////////////////////////////////////////
1841
1842 bool MUtils::OS::check_key_state_esc(void)
1843 {
1844         return (GetAsyncKeyState(VK_ESCAPE) & 0x0001) != 0;
1845 }
1846
1847 ///////////////////////////////////////////////////////////////////////////////
1848 // SHELL CHANGE NOTIFICATION
1849 ///////////////////////////////////////////////////////////////////////////////
1850
1851 void MUtils::OS::shell_change_notification(void)
1852 {
1853         SHChangeNotify(SHCNE_ASSOCCHANGED, SHCNF_IDLIST, NULL, NULL);
1854 }
1855
1856 ///////////////////////////////////////////////////////////////////////////////
1857 // WOW64 REDIRECTION
1858 ///////////////////////////////////////////////////////////////////////////////
1859
1860 typedef BOOL (_stdcall *Wow64DisableWow64FsRedirectionFun)(PVOID *OldValue);
1861 typedef BOOL (_stdcall *Wow64RevertWow64FsRedirectionFun) (PVOID  OldValue);
1862
1863 bool MUtils::OS::wow64fsredir_disable(uintptr_t &oldValue)
1864 {
1865         oldValue = reinterpret_cast<uintptr_t>(nullptr);
1866         const Wow64DisableWow64FsRedirectionFun wow64redir_disable = MUtils::Win32Utils::resolve<Wow64DisableWow64FsRedirectionFun>(QLatin1String("kernel32"), QLatin1String("Wow64DisableWow64FsRedirection"));
1867         if(wow64redir_disable)
1868         {
1869                 PVOID temp = NULL;
1870                 if (wow64redir_disable(&temp))
1871                 {
1872                         oldValue = reinterpret_cast<uintptr_t>(temp);
1873                         return true;
1874                 }
1875         }
1876         return false;
1877 }
1878
1879 bool MUtils::OS::wow64fsredir_revert(const uintptr_t oldValue)
1880 {
1881         const Wow64RevertWow64FsRedirectionFun wow64redir_disable = MUtils::Win32Utils::resolve<Wow64RevertWow64FsRedirectionFun>(QLatin1String("kernel32"), QLatin1String("Wow64RevertWow64FsRedirection"));
1882         if (wow64redir_disable)
1883         {
1884                 if (wow64redir_disable(reinterpret_cast<PVOID>(oldValue)))
1885                 {
1886                         return true;
1887                 }
1888         }
1889         return false;
1890 }
1891
1892 ///////////////////////////////////////////////////////////////////////////////
1893 // DEBUGGER CHECK
1894 ///////////////////////////////////////////////////////////////////////////////
1895
1896 QString MUtils::OS::get_envvar(const QString &name)
1897 {
1898         wchar_t *buffer = NULL;
1899         size_t requiredSize = 0, buffSize = 0;
1900         QString result;
1901
1902         forever
1903         {
1904                 //Adjust the buffer size as required first!
1905                 if (buffSize < requiredSize)
1906                 {
1907                         if (buffer)
1908                         {
1909                                 _freea(buffer);
1910                         }
1911                         if (!(buffer = (wchar_t*)_malloca(sizeof(wchar_t) * requiredSize)))
1912                         {
1913                                 break; /*out of memory error!*/
1914                         }
1915                         buffSize = requiredSize;
1916                 }
1917
1918                 //Try to fetch the environment variable now
1919                 const errno_t error = _wgetenv_s(&requiredSize, buffer, buffSize, MUTILS_WCHR(name));
1920                 if(!error)
1921                 {
1922                         if (requiredSize > 0)
1923                         {
1924                                 result = MUTILS_QSTR(buffer);
1925                         }
1926                         break; /*done*/
1927                 }
1928                 else if (error != ERANGE)
1929                 {
1930                         break; /*somethging else went wrong!*/
1931                 }
1932         }
1933
1934         if (buffer)
1935         {
1936                 _freea(buffer);
1937                 buffSize = 0;
1938                 buffer = NULL;
1939         }
1940
1941         return result;
1942 }
1943
1944 bool MUtils::OS::set_envvar(const QString &name, const QString &value)
1945 {
1946         if (!_wputenv_s(MUTILS_WCHR(name), MUTILS_WCHR(value)))
1947         {
1948                 return true;
1949         }
1950         return false;
1951 }
1952
1953 ///////////////////////////////////////////////////////////////////////////////
1954 // NULL DEVICE
1955 ///////////////////////////////////////////////////////////////////////////////
1956
1957 static const QLatin1String NULL_DEVICE("NUL");
1958
1959 const QLatin1String &MUtils::OS::null_device(void)
1960 {
1961         return NULL_DEVICE;
1962 }
1963
1964 ///////////////////////////////////////////////////////////////////////////////
1965 // DEBUGGER CHECK
1966 ///////////////////////////////////////////////////////////////////////////////
1967
1968 #if (!(MUTILS_DEBUG))
1969 static __forceinline bool is_debugger_present(void)
1970 {
1971         __try
1972         {
1973                 CloseHandle((HANDLE)((DWORD_PTR)-3));
1974         }
1975         __except(1)
1976         {
1977                 return true;
1978         }
1979
1980         BOOL bHaveDebugger = FALSE;
1981         if(CheckRemoteDebuggerPresent(GetCurrentProcess(), &bHaveDebugger))
1982         {
1983                 if(bHaveDebugger) return true;
1984         }
1985
1986         return IsDebuggerPresent();
1987 }
1988 static __forceinline bool check_debugger_helper(void)
1989 {
1990         if(is_debugger_present())
1991         {
1992                 MUtils::OS::fatal_exit(L"Not a debug build. Please unload debugger and try again!");
1993                 return true;
1994         }
1995         return false;
1996 }
1997 #else
1998 #define check_debugger_helper() (false)
1999 #endif
2000
2001 void MUtils::OS::check_debugger(void)
2002 {
2003         check_debugger_helper();
2004 }
2005
2006 static volatile bool g_debug_check = check_debugger_helper();
2007
2008 ///////////////////////////////////////////////////////////////////////////////
2009 // FATAL EXIT
2010 ///////////////////////////////////////////////////////////////////////////////
2011
2012 static MUtils::Internal::CriticalSection g_fatal_exit_lock;
2013 static QAtomicInt g_fatal_exit_flag;
2014
2015 static DWORD WINAPI fatal_exit_helper(LPVOID lpParameter)
2016 {
2017         MUtils::OS::system_message_err(L"GURU MEDITATION", (LPWSTR) lpParameter);
2018         return 0;
2019 }
2020
2021 void MUtils::OS::fatal_exit(const wchar_t* const errorMessage)
2022 {
2023         g_fatal_exit_lock.enter();
2024
2025         if(!g_fatal_exit_flag.testAndSetOrdered(0, 1))
2026         {
2027                 return; /*prevent recursive invocation*/
2028         }
2029
2030         if(g_main_thread_id != GetCurrentThreadId())
2031         {
2032                 if(HANDLE hThreadMain = OpenThread(THREAD_SUSPEND_RESUME, FALSE, g_main_thread_id))
2033                 {
2034                         SuspendThread(hThreadMain); /*stop main thread*/
2035                 }
2036         }
2037
2038         if(HANDLE hThread = CreateThread(NULL, 0, fatal_exit_helper, (LPVOID)errorMessage, 0, NULL))
2039         {
2040                 WaitForSingleObject(hThread, INFINITE);
2041         }
2042         else
2043         {
2044                 fatal_exit_helper((LPVOID)errorMessage);
2045         }
2046
2047         for(;;)
2048         {
2049                 TerminateProcess(GetCurrentProcess(), 666);
2050         }
2051 }
2052
2053 ///////////////////////////////////////////////////////////////////////////////