bin/winvlc.c

   1 /*****************************************************************************
   2  * winvlc.c: the Windows VLC media player
   3  *****************************************************************************
   4  * Copyright (C) 1998-2011 the VideoLAN team
   5  *
   6  * Authors: Vincent Seguin <seguin@via.ecp.fr>
   7  *          Samuel Hocevar <sam@zoy.org>
   8  *          Gildas Bazin <gbazin@videolan.org>
   9  *          Derk-Jan Hartman <hartman at videolan dot org>
  10  *          Lots of other people, see the libvlc AUTHORS file
  11  *
  12  * This program is free software; you can redistribute it and/or modify
  13  * it under the terms of the GNU General Public License as published by
  14  * the Free Software Foundation; either version 2 of the License, or
  15  * (at your option) any later version.
  16  *
  17  * This program is distributed in the hope that it will be useful,
  18  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  19  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  20  * GNU General Public License for more details.
  21  *
  22  * You should have received a copy of the GNU General Public License
  23  * along with this program; if not, write to the Free Software
  24  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  25  *****************************************************************************/
  26
  27 #ifdef HAVE_CONFIG_H
  28 # include "config.h"
  29 #endif
  30
  31 #ifndef UNICODE
  32 #define UNICODE
  33 #endif
  34
  35 #include <vlc/vlc.h>
  36 #include <windows.h>
  37 #include <shellapi.h>
  38
  39 #ifndef _WIN32_IE
  40 #  define  _WIN32_IE 0x501
  41 #endif
  42 #include <fcntl.h>
  43 #include <io.h>
  44 #include <shlobj.h>
  45 #include <wininet.h>
  46 #define PSAPI_VERSION 1
  47 #include <psapi.h>
  48 #define HeapEnableTerminationOnCorruption (HEAP_INFORMATION_CLASS)1
  49 static void check_crashdump(void);
  50 LONG WINAPI vlc_exception_filter(struct _EXCEPTION_POINTERS *lpExceptionInfo);
  51 static const wchar_t *crashdump_path;
  52
  53 static char *FromWide (const wchar_t *wide)
  54 {
  55     size_t len;
  56     len = WideCharToMultiByte (CP_UTF8, 0, wide, -1, NULL, 0, NULL, NULL);
  57
  58     char *out = (char *)malloc (len);
  59     if (out)
  60         WideCharToMultiByte (CP_UTF8, 0, wide, -1, out, len, NULL, NULL);
  61     return out;
  62 }
  63
  64 int WINAPI WinMain( HINSTANCE hInstance, HINSTANCE hPrevInstance,
  65                     LPSTR lpCmdLine,
  66                     int nCmdShow )
  67 {
  68     int argc;
  69
  70     /* VLC does not change the thread locale, so gettext/libintil will use the
  71      * user default locale as reference. */
  72     /* gettext versions 0.18-0.18.1 will use the Windows Vista locale name
  73      * if the GETTEXT_MUI environment variable is set. If not set or if running
  74      * on Windows 2000/XP/2003 an hard-coded language ID list is used. This
  75      * putenv() call may become redundant with later versions of gettext. */
  76     putenv("GETTEXT_MUI=1");
  77 #ifdef TOP_BUILDDIR
  78     putenv("VLC_PLUGIN_PATH=Z:"TOP_BUILDDIR"/modules");
  79     putenv("VLC_DATA_PATH=Z:"TOP_SRCDIR"/share");
  80 #endif
  81
  82     SetErrorMode(SEM_FAILCRITICALERRORS);
  83     HeapSetInformation(NULL, HeapEnableTerminationOnCorruption, NULL, 0);
  84
  85     /* SetProcessDEPPolicy */
  86     HINSTANCE h_Kernel32 = LoadLibraryW(L"kernel32.dll");
  87     if(h_Kernel32)
  88     {
  89         BOOL (WINAPI * mySetProcessDEPPolicy)( DWORD dwFlags);
  90         BOOL (WINAPI * mySetDllDirectoryA)(const char* lpPathName);
  91 # define PROCESS_DEP_ENABLE 1
  92
  93         mySetProcessDEPPolicy = (BOOL (WINAPI *)(DWORD))
  94                             GetProcAddress(h_Kernel32, "SetProcessDEPPolicy");
  95         if(mySetProcessDEPPolicy)
  96             mySetProcessDEPPolicy(PROCESS_DEP_ENABLE);
  97
  98         /* Do NOT load any library from cwd. */
  99         mySetDllDirectoryA = (BOOL (WINAPI *)(const char*))
 100                             GetProcAddress(h_Kernel32, "SetDllDirectoryA");
 101         if(mySetDllDirectoryA)
 102             mySetDllDirectoryA("");
 103
 104         FreeLibrary(h_Kernel32);
 105     }
 106
 107     /* Args */
 108     wchar_t **wargv = CommandLineToArgvW (GetCommandLine (), &argc);
 109     if (wargv == NULL)
 110         return 1;
 111
 112     char *argv[argc + 3];
 113     BOOL crash_handling = TRUE;
 114     int j = 0;
 115     char *lang = NULL;
 116
 117     argv[j++] = FromWide( L"--media-library" );
 118     argv[j++] = FromWide( L"--no-ignore-config" );
 119     for (int i = 1; i < argc; i++)
 120     {
 121         if(!wcscmp(wargv[i], L"--no-crashdump"))
 122         {
 123             crash_handling = FALSE;
 124             continue; /* don't give argument to libvlc */
 125         }
 126         if (!wcsncmp(wargv[i], L"--language", 10) )
 127         {
 128             if (i < argc - 1 && wcsncmp( wargv[i + 1], L"--", 2 ))
 129                 lang = FromWide (wargv[++i]);
 130             continue;
 131         }
 132
 133         argv[j++] = FromWide (wargv[i]);
 134     }
 135
 136     argc = j;
 137     argv[argc] = NULL;
 138     LocalFree (wargv);
 139
 140     if(crash_handling)
 141     {
 142         static wchar_t path[MAX_PATH];
 143         if( S_OK != SHGetFolderPathW( NULL, CSIDL_APPDATA | CSIDL_FLAG_CREATE,
 144                     NULL, SHGFP_TYPE_CURRENT, path ) )
 145             fprintf( stderr, "Can't open the vlc conf PATH\n" );
 146         _snwprintf( path+wcslen( path ), MAX_PATH,  L"%s", L"\\vlc\\crashdump" );
 147         crashdump_path = &path[0];
 148
 149         check_crashdump();
 150         SetUnhandledExceptionFilter(vlc_exception_filter);
 151     }
 152
 153     _setmode( _fileno( stdin ), _O_BINARY ); /* Needed for pipes */
 154
 155     /* */
 156     if (!lang)
 157     {
 158         HKEY h_key;
 159         if( RegOpenKeyEx( HKEY_CURRENT_USER, TEXT("Software\\VideoLAN\\VLC\\"), 0, KEY_READ, &h_key )
 160                 == ERROR_SUCCESS )
 161         {
 162             TCHAR szData[256];
 163             DWORD len = 256;
 164             if( RegQueryValueEx( h_key, TEXT("Lang"), NULL, NULL, (LPBYTE) &szData, &len ) == ERROR_SUCCESS )
 165                 lang = FromWide( szData );
 166         }
 167     }
 168
 169     if (lang && strncmp( lang, "auto", 4 ) )
 170     {
 171         char tmp[11];
 172         snprintf(tmp, 11, "LANG=%s", lang);
 173         putenv(tmp);
 174     }
 175     free(lang);
 176
 177     /* Initialize libvlc */
 178     libvlc_instance_t *vlc;
 179     vlc = libvlc_new (argc, (const char **)argv);
 180     if (vlc != NULL)
 181     {
 182         libvlc_set_app_id (vlc, "org.VideoLAN.VLC", PACKAGE_VERSION,
 183                            PACKAGE_NAME);
 184         libvlc_set_user_agent (vlc, "VLC media player", "VLC/"PACKAGE_VERSION);
 185         libvlc_add_intf (vlc, "hotkeys,none");
 186         libvlc_add_intf (vlc, "globalhotkeys,none");
 187         libvlc_add_intf (vlc, NULL);
 188         libvlc_playlist_play (vlc, -1, 0, NULL);
 189         libvlc_wait (vlc);
 190         libvlc_release (vlc);
 191     }
 192     else
 193         MessageBox (NULL, TEXT("VLC media player could not start.\n"
 194                     "Either the command line options were invalid or no plugins were found.\n"),
 195                     TEXT("VLC media player"),
 196                     MB_OK|MB_ICONERROR);
 197
 198
 199     for (int i = 0; i < argc; i++)
 200         free (argv[i]);
 201
 202     (void)hInstance; (void)hPrevInstance; (void)lpCmdLine; (void)nCmdShow;
 203     return 0;
 204 }
 205
 206 /* Crashdumps handling */
 207 static void check_crashdump(void)
 208 {
 209     wchar_t mv_crashdump_path[MAX_PATH];
 210     wcscpy (mv_crashdump_path, crashdump_path);
 211     wcscat (mv_crashdump_path, L".mv");
 212
 213     if (_wrename (crashdump_path, mv_crashdump_path))
 214         return;
 215
 216     FILE * fd = _wfopen ( mv_crashdump_path, L"r, ccs=UTF-8" );
 217     if( !fd )
 218         return;
 219     fclose( fd );
 220
 221     int answer = MessageBox( NULL, L"Ooops: VLC media player just crashed.\n" \
 222     "Would you like to send a bug report to the developers team?",
 223     L"VLC crash reporting", MB_YESNO);
 224
 225     if(answer == IDYES)
 226     {
 227         HINTERNET Hint = InternetOpen(L"VLC Crash Reporter",
 228                 INTERNET_OPEN_TYPE_PRECONFIG, NULL,NULL,0);
 229         if(Hint)
 230         {
 231             HINTERNET ftp = InternetConnect(Hint, L"crash.videolan.org",
 232                         INTERNET_DEFAULT_FTP_PORT, NULL, NULL,
 233                         INTERNET_SERVICE_FTP, INTERNET_FLAG_PASSIVE, 0);
 234             if(ftp)
 235             {
 236                 SYSTEMTIME now;
 237                 GetSystemTime(&now);
 238                 wchar_t remote_file[MAX_PATH];
 239                 _snwprintf(remote_file, MAX_PATH,
 240                         L"/crashes-win32/%04d%02d%02d%02d%02d%02d",
 241                         now.wYear, now.wMonth, now.wDay, now.wHour,
 242                         now.wMinute, now.wSecond );
 243
 244                 if( FtpPutFile( ftp, mv_crashdump_path, remote_file,
 245                             FTP_TRANSFER_TYPE_BINARY, 0) )
 246                     MessageBox( NULL, L"Report sent correctly. Thanks a lot " \
 247                                 "for the help.", L"Report sent", MB_OK);
 248                 else
 249                     MessageBox( NULL, L"There was an error while "\
 250                                 "transferring the data to the FTP server.\n"\
 251                                 "Thanks a lot for the help.",
 252                                 L"Report sending failed", MB_OK);
 253                 InternetCloseHandle(ftp);
 254             }
 255             else
 256             {
 257                 MessageBox( NULL, L"There was an error while connecting to " \
 258                                 "the FTP server. "\
 259                                 "Thanks a lot for the help.",
 260                                 L"Report sending failed", MB_OK);
 261                 fprintf(stderr,"Can't connect to FTP server 0x%08lu\n",
 262                         (unsigned long)GetLastError());
 263             }
 264             InternetCloseHandle(Hint);
 265         }
 266         else
 267         {
 268               MessageBox( NULL, L"There was an error while connecting to the Internet.\n"\
 269                                 "Thanks a lot for the help anyway.",
 270                                 L"Report sending failed", MB_OK);
 271         }
 272     }
 273
 274     _wremove(mv_crashdump_path);
 275 }
 276
 277 /*****************************************************************************
 278  * vlc_exception_filter: handles unhandled exceptions, like segfaults
 279  *****************************************************************************/
 280 LONG WINAPI vlc_exception_filter(struct _EXCEPTION_POINTERS *lpExceptionInfo)
 281 {
 282     if(IsDebuggerPresent())
 283     {
 284         //If a debugger is present, pass the exception to the debugger
 285         //with EXCEPTION_CONTINUE_SEARCH
 286         return EXCEPTION_CONTINUE_SEARCH;
 287     }
 288     else
 289     {
 290         fprintf( stderr, "unhandled vlc exception\n" );
 291
 292         FILE * fd = _wfopen ( crashdump_path, L"w, ccs=UTF-8" );
 293
 294         if( !fd )
 295         {
 296             fprintf( stderr, "\nerror while opening file" );
 297             exit( 1 );
 298         }
 299
 300         OSVERSIONINFO osvi;
 301         ZeroMemory( &osvi, sizeof(OSVERSIONINFO) );
 302         osvi.dwOSVersionInfoSize = sizeof( OSVERSIONINFO );
 303         GetVersionEx( &osvi );
 304
 305         fwprintf( fd, L"[version]\nOS=%d.%d.%d.%d.%ls\nVLC=" VERSION_MESSAGE,
 306                 osvi.dwMajorVersion, osvi.dwMinorVersion, osvi.dwBuildNumber,
 307                 osvi.dwPlatformId, osvi.szCSDVersion);
 308
 309         const CONTEXT *const pContext = (const CONTEXT *)
 310             lpExceptionInfo->ContextRecord;
 311         const EXCEPTION_RECORD *const pException = (const EXCEPTION_RECORD *)
 312             lpExceptionInfo->ExceptionRecord;
 313         /* No nested exceptions for now */
 314         fwprintf( fd, L"\n\n[exceptions]\n%08x at %px",
 315                 pException->ExceptionCode, pException->ExceptionAddress );
 316
 317         for( unsigned int i = 0; i < pException->NumberParameters; i++ )
 318             fwprintf( fd, L" | %p", pException->ExceptionInformation[i] );
 319
 320 #ifdef _WIN64
 321         fwprintf( fd, L"\n\n[context]\nRDI:%px\nRSI:%px\n" \
 322                     "RBX:%px\nRDX:%px\nRCX:%px\nRAX:%px\n" \
 323                     "RBP:%px\nRIP:%px\nRSP:%px\nR8:%px\n" \
 324                     "R9:%px\nR10:%px\nR11:%px\nR12:%px\n" \
 325                     "R13:%px\nR14:%px\nR15:%px\n",
 326                         pContext->Rdi,pContext->Rsi,pContext->Rbx,
 327                         pContext->Rdx,pContext->Rcx,pContext->Rax,
 328                         pContext->Rbp,pContext->Rip,pContext->Rsp,
 329                         pContext->R8,pContext->R9,pContext->R10,
 330                         pContext->R11,pContext->R12,pContext->R13,
 331                         pContext->R14,pContext->R15 );
 332 #else
 333         fwprintf( fd, L"\n\n[context]\nEDI:%px\nESI:%px\n" \
 334                     "EBX:%px\nEDX:%px\nECX:%px\nEAX:%px\n" \
 335                     "EBP:%px\nEIP:%px\nESP:%px\n",
 336                         pContext->Edi,pContext->Esi,pContext->Ebx,
 337                         pContext->Edx,pContext->Ecx,pContext->Eax,
 338                         pContext->Ebp,pContext->Eip,pContext->Esp );
 339 #endif
 340
 341         fwprintf( fd, L"\n[stacktrace]\n#EIP|base|module\n" );
 342
 343 #ifdef _WIN64
 344         LPCVOID caller = (LPCVOID)pContext->Rip;
 345         LPVOID *pBase  = (LPVOID*)pContext->Rbp;
 346 #else
 347         LPVOID *pBase  = (LPVOID*)pContext->Ebp;
 348         LPCVOID caller = (LPCVOID)pContext->Eip;
 349 #endif
 350         for( unsigned frame = 0; frame <= 100; frame++ )
 351         {
 352             MEMORY_BASIC_INFORMATION mbi;
 353             wchar_t module[ 256 ];
 354             VirtualQuery( caller, &mbi, sizeof( mbi ) ) ;
 355             GetModuleFileName( mbi.AllocationBase, module, 256 );
 356             fwprintf( fd, L"%p|%ls\n", caller, module );
 357
 358             if( IsBadReadPtr( pBase, 2 * sizeof( void* ) ) )
 359                 break;
 360
 361             /*The last BP points to NULL!*/
 362             caller = *(pBase + 1);
 363             if( !caller )
 364                 break;
 365             pBase = *pBase;
 366             if( !pBase )
 367                 break;
 368         }
 369
 370         HANDLE hpid = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ,
 371                                         FALSE, GetCurrentProcessId());
 372         if (hpid) {
 373             HMODULE mods[1024];
 374             DWORD size;
 375             if (EnumProcessModules(hpid, mods, sizeof(mods), &size)) {
 376                 fwprintf( fd, L"\n\n[modules]\n" );
 377                 for (unsigned int i = 0; i < size / sizeof(HMODULE); i++) {
 378                     wchar_t module[ 256 ];
 379                     GetModuleFileName(mods[i], module, 256);
 380                     fwprintf( fd, L"%p|%ls\n", mods[i], module);
 381                 }
 382             }
 383             CloseHandle(hpid);
 384         }
 385
 386         fclose( fd );
 387         fflush( stderr );
 388         exit( 1 );
 389     }
 390 }