af99de0e573b8c3f82b8aa835c9066f0ed1cabe1
[vlc.git] / 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 #if (_WIN32_WINNT < _WIN32_WINNT_WIN8)
65 static BOOL SetDefaultDllDirectories_(DWORD flags)
66 {
67     HMODULE h = GetModuleHandle(TEXT("kernel32.dll"));
68     if (h == NULL)
69         return FALSE;
70
71     BOOL (WINAPI * SetDefaultDllDirectoriesReal)(DWORD);
72
73     SetDefaultDllDirectoriesReal = GetProcAddress(h,
74                                                   "SetDefaultDllDirectories");
75     if (SetDefaultDllDirectoriesReal == NULL)
76         return FALSE;
77
78     return SetDefaultDllDirectoriesReal(flags);
79 }
80 # define SetDefaultDllDirectories SetDefaultDllDirectories_
81
82 #endif
83
84 static void PrioritizeSystem32(void)
85 {
86 #ifndef HAVE_PROCESS_MITIGATION_IMAGE_LOAD_POLICY
87     typedef struct _PROCESS_MITIGATION_IMAGE_LOAD_POLICY {
88       union {
89         DWORD  Flags;
90         struct {
91           DWORD NoRemoteImages  :1;
92           DWORD NoLowMandatoryLabelImages  :1;
93           DWORD PreferSystem32Images  :1;
94           DWORD ReservedFlags  :29;
95         };
96       };
97     } PROCESS_MITIGATION_IMAGE_LOAD_POLICY;
98 #endif
99 #if _WIN32_WINNT < _WIN32_WINNT_WIN8
100     BOOL WINAPI (*SetProcessMitigationPolicy)(PROCESS_MITIGATION_POLICY, PVOID, SIZE_T);
101     HINSTANCE h_Kernel32 = GetModuleHandle(TEXT("kernel32.dll"));
102     if ( !h_Kernel32 )
103         return;
104     SetProcessMitigationPolicy = (BOOL (WINAPI *)(PROCESS_MITIGATION_POLICY, PVOID, SIZE_T))
105                                    GetProcAddress(h_Kernel32, "SetProcessMitigationPolicy");
106     if (SetProcessMitigationPolicy == NULL)
107         return;
108 #endif
109     PROCESS_MITIGATION_IMAGE_LOAD_POLICY m = { .Flags = 0 };
110     m.PreferSystem32Images = 1;
111     SetProcessMitigationPolicy( 10 /* ProcessImageLoadPolicy */, &m, sizeof( m ) );
112 }
113
114 int WINAPI WinMain( HINSTANCE hInstance, HINSTANCE hPrevInstance,
115                     LPSTR lpCmdLine,
116                     int nCmdShow )
117 {
118     int argc;
119
120     /* VLC does not change the thread locale, so gettext/libintil will use the
121      * user default locale as reference. */
122     /* gettext versions 0.18-0.18.1 will use the Windows Vista locale name
123      * if the GETTEXT_MUI environment variable is set. If not set or if running
124      * on Windows 2000/XP/2003 an hard-coded language ID list is used. This
125      * putenv() call may become redundant with later versions of gettext. */
126     putenv("GETTEXT_MUI=1");
127 #ifdef TOP_BUILDDIR
128     putenv("VLC_PLUGIN_PATH=Z:"TOP_BUILDDIR"/modules");
129     putenv("VLC_DATA_PATH=Z:"TOP_SRCDIR"/share");
130 #endif
131
132     SetErrorMode(SEM_FAILCRITICALERRORS);
133     HeapSetInformation(NULL, HeapEnableTerminationOnCorruption, NULL, 0);
134
135     /* SetProcessDEPPolicy, SetDllDirectory, & Co. */
136     HINSTANCE h_Kernel32 = GetModuleHandle(TEXT("kernel32.dll"));
137     if (h_Kernel32 != NULL)
138     {
139         /* Enable DEP */
140 # define PROCESS_DEP_ENABLE 1
141         BOOL (WINAPI * mySetProcessDEPPolicy)( DWORD dwFlags);
142         mySetProcessDEPPolicy = (BOOL (WINAPI *)(DWORD))
143                             GetProcAddress(h_Kernel32, "SetProcessDEPPolicy");
144         if(mySetProcessDEPPolicy)
145             mySetProcessDEPPolicy(PROCESS_DEP_ENABLE);
146
147         /* Do NOT load any library from cwd. */
148         BOOL (WINAPI * mySetDllDirectoryA)(const char* lpPathName);
149         mySetDllDirectoryA = (BOOL (WINAPI *)(const char*))
150                             GetProcAddress(h_Kernel32, "SetDllDirectoryA");
151         if(mySetDllDirectoryA)
152             mySetDllDirectoryA("");
153     }
154
155     /***
156      * The LoadLibrary* calls from the modules and the 3rd party code
157      * will search in SYSTEM32 only
158      * */
159     SetDefaultDllDirectories(LOAD_LIBRARY_SEARCH_SYSTEM32);
160     /***
161      * Load DLLs from system32 before any other folder (when possible)
162      */
163     PrioritizeSystem32();
164
165     /* Args */
166     wchar_t **wargv = CommandLineToArgvW (GetCommandLine (), &argc);
167     if (wargv == NULL)
168         return 1;
169
170     char *argv[argc + 3];
171     BOOL crash_handling = TRUE;
172     int j = 0;
173     char *lang = NULL;
174
175     argv[j++] = FromWide( L"--media-library" );
176     argv[j++] = FromWide( L"--no-ignore-config" );
177     for (int i = 1; i < argc; i++)
178     {
179         if(!wcscmp(wargv[i], L"--no-crashdump"))
180         {
181             crash_handling = FALSE;
182             continue; /* don't give argument to libvlc */
183         }
184         if (!wcsncmp(wargv[i], L"--language", 10) )
185         {
186             if (i < argc - 1 && wcsncmp( wargv[i + 1], L"--", 2 ))
187                 lang = FromWide (wargv[++i]);
188             continue;
189         }
190
191         argv[j++] = FromWide (wargv[i]);
192     }
193
194     argc = j;
195     argv[argc] = NULL;
196     LocalFree (wargv);
197
198     if(crash_handling)
199     {
200         static wchar_t path[MAX_PATH];
201         if( S_OK != SHGetFolderPathW( NULL, CSIDL_APPDATA | CSIDL_FLAG_CREATE,
202                     NULL, SHGFP_TYPE_CURRENT, path ) )
203             fprintf( stderr, "Can't open the vlc conf PATH\n" );
204         _snwprintf( path+wcslen( path ), MAX_PATH,  L"%s", L"\\vlc\\crashdump" );
205         crashdump_path = &path[0];
206
207         check_crashdump();
208         SetUnhandledExceptionFilter(vlc_exception_filter);
209     }
210
211     _setmode( _fileno( stdin ), _O_BINARY ); /* Needed for pipes */
212
213     /* */
214     if (!lang)
215     {
216         HKEY h_key;
217         if( RegOpenKeyEx( HKEY_CURRENT_USER, TEXT("Software\\VideoLAN\\VLC\\"), 0, KEY_READ, &h_key )
218                 == ERROR_SUCCESS )
219         {
220             TCHAR szData[256];
221             DWORD len = 256;
222             if( RegQueryValueEx( h_key, TEXT("Lang"), NULL, NULL, (LPBYTE) &szData, &len ) == ERROR_SUCCESS )
223                 lang = FromWide( szData );
224         }
225     }
226
227     if (lang && strncmp( lang, "auto", 4 ) )
228     {
229         char tmp[11];
230         snprintf(tmp, 11, "LANG=%s", lang);
231         putenv(tmp);
232     }
233     free(lang);
234
235     /* Initialize libvlc */
236     libvlc_instance_t *vlc;
237     vlc = libvlc_new (argc, (const char **)argv);
238     if (vlc != NULL)
239     {
240         libvlc_set_app_id (vlc, "org.VideoLAN.VLC", PACKAGE_VERSION,
241                            PACKAGE_NAME);
242         libvlc_set_user_agent (vlc, "VLC media player", "VLC/"PACKAGE_VERSION);
243         libvlc_add_intf (vlc, "hotkeys,none");
244         libvlc_add_intf (vlc, "globalhotkeys,none");
245         libvlc_add_intf (vlc, NULL);
246         libvlc_playlist_play (vlc, -1, 0, NULL);
247         libvlc_wait (vlc);
248         libvlc_release (vlc);
249     }
250     else
251         MessageBox (NULL, TEXT("VLC media player could not start.\n"
252                     "Either the command line options were invalid or no plugins were found.\n"),
253                     TEXT("VLC media player"),
254                     MB_OK|MB_ICONERROR);
255
256
257     for (int i = 0; i < argc; i++)
258         free (argv[i]);
259
260     (void)hInstance; (void)hPrevInstance; (void)lpCmdLine; (void)nCmdShow;
261     return 0;
262 }
263
264 /* Crashdumps handling */
265 static void check_crashdump(void)
266 {
267     wchar_t mv_crashdump_path[MAX_PATH];
268     wcscpy (mv_crashdump_path, crashdump_path);
269     wcscat (mv_crashdump_path, L".mv");
270
271     if (_wrename (crashdump_path, mv_crashdump_path))
272         return;
273
274     FILE * fd = _wfopen ( mv_crashdump_path, L"r, ccs=UTF-8" );
275     if( !fd )
276         return;
277     fclose( fd );
278
279     int answer = MessageBox( NULL, L"Ooops: VLC media player just crashed.\n" \
280     "Would you like to send a bug report to the developers team?",
281     L"VLC crash reporting", MB_YESNO);
282
283     if(answer == IDYES)
284     {
285         HMODULE hWininet = LoadLibrary(TEXT("wininet.dll"));
286         if (hWininet == NULL)
287         {
288             fprintf(stderr, "There was an error loading the network"
289                     " 0x%08lx\n", (unsigned long)GetLastError());
290             goto done;
291         }
292
293         HINTERNET (WINAPI *InternetOpenW_)(LPCWSTR ,DWORD dwAccessType,LPCWSTR lpszProxy,LPCWSTR lpszProxyBypass,DWORD dwFlags);
294         HINTERNET (WINAPI *InternetConnectW_)(HINTERNET hInternet,LPCWSTR lpszServerName,INTERNET_PORT nServerPort,LPCWSTR lpszUserName,LPCWSTR lpszPassword,DWORD dwService,DWORD dwFlags,DWORD_PTR dwContext);
295         BOOL (WINAPI *InternetCloseHandle_)(HINTERNET hInternet);
296         BOOL (WINAPI *FtpPutFileW_)(HINTERNET hConnect,LPCWSTR lpszLocalFile,LPCWSTR lpszNewRemoteFile,DWORD dwFlags,DWORD_PTR dwContext);
297         InternetOpenW_       = (void*)GetProcAddress(hWininet, "InternetOpenW");
298         InternetConnectW_    = (void*)GetProcAddress(hWininet, "InternetConnectW");
299         InternetCloseHandle_ = (void*)GetProcAddress(hWininet, "InternetCloseHandle");
300         FtpPutFileW_         = (void*)GetProcAddress(hWininet, "FtpPutFileW");
301         if (!InternetOpenW_ || !InternetConnectW_ || !InternetCloseHandle_ || !FtpPutFileW_)
302         {
303             fprintf(stderr, "There was an error loading the network API entries"
304                     " 0x%08lx\n", (unsigned long)GetLastError());
305             goto done;
306         }
307
308         HINTERNET Hint = InternetOpenW_(L"VLC Crash Reporter",
309                 INTERNET_OPEN_TYPE_PRECONFIG, NULL,NULL,0);
310         if(Hint)
311         {
312             HINTERNET ftp = InternetConnectW_(Hint, L"crash.videolan.org",
313                         INTERNET_DEFAULT_FTP_PORT, NULL, NULL,
314                         INTERNET_SERVICE_FTP, INTERNET_FLAG_PASSIVE, 0);
315             if(ftp)
316             {
317                 SYSTEMTIME now;
318                 GetSystemTime(&now);
319                 wchar_t remote_file[MAX_PATH];
320                 _snwprintf(remote_file, MAX_PATH,
321                         L"/crashes-win32/%04d%02d%02d%02d%02d%02d",
322                         now.wYear, now.wMonth, now.wDay, now.wHour,
323                         now.wMinute, now.wSecond );
324
325                 if( FtpPutFileW_( ftp, mv_crashdump_path, remote_file,
326                             FTP_TRANSFER_TYPE_BINARY, 0) )
327                     fprintf(stderr, "Report sent correctly to FTP.\n");
328                 else
329                     fprintf(stderr,"Couldn't send report to FTP server\n");
330
331                 InternetCloseHandle_(ftp);
332             }
333             else
334             {
335                 fprintf(stderr, "Can't connect to FTP server 0x%08lx\n",
336                         (unsigned long)GetLastError());
337             }
338             InternetCloseHandle_(Hint);
339         }
340         else
341         {
342               fprintf(stderr, "There was an error while connecting to the "
343                       "Internet  0x%08lx\n", (unsigned long)GetLastError());
344         }
345 done:
346         if (hWininet != NULL)
347             FreeLibrary(hWininet);
348         MessageBox( NULL, L"Thanks a lot for helping improving VLC!",
349                     L"VLC crash report" , MB_OK);
350     }
351
352     _wremove(mv_crashdump_path);
353 }
354
355 /*****************************************************************************
356  * vlc_exception_filter: handles unhandled exceptions, like segfaults
357  *****************************************************************************/
358 LONG WINAPI vlc_exception_filter(struct _EXCEPTION_POINTERS *lpExceptionInfo)
359 {
360     if(IsDebuggerPresent())
361     {
362         //If a debugger is present, pass the exception to the debugger
363         //with EXCEPTION_CONTINUE_SEARCH
364         return EXCEPTION_CONTINUE_SEARCH;
365     }
366     else
367     {
368         fprintf( stderr, "unhandled vlc exception\n" );
369
370         FILE * fd = _wfopen ( crashdump_path, L"w, ccs=UTF-8" );
371
372         if( !fd )
373         {
374             fprintf( stderr, "\nerror while opening file" );
375             exit( 1 );
376         }
377
378         OSVERSIONINFO osvi;
379         ZeroMemory( &osvi, sizeof(OSVERSIONINFO) );
380         osvi.dwOSVersionInfoSize = sizeof( OSVERSIONINFO );
381         GetVersionEx( &osvi );
382
383         fwprintf( fd, L"[version]\nOS=%d.%d.%d.%d.%ls\nVLC=" VERSION_MESSAGE,
384                 osvi.dwMajorVersion, osvi.dwMinorVersion, osvi.dwBuildNumber,
385                 osvi.dwPlatformId, osvi.szCSDVersion);
386
387         const CONTEXT *const pContext = (const CONTEXT *)
388             lpExceptionInfo->ContextRecord;
389         const EXCEPTION_RECORD *const pException = (const EXCEPTION_RECORD *)
390             lpExceptionInfo->ExceptionRecord;
391         /* No nested exceptions for now */
392         fwprintf( fd, L"\n\n[exceptions]\n%08x at %px", 
393                 pException->ExceptionCode, pException->ExceptionAddress );
394
395         for( unsigned int i = 0; i < pException->NumberParameters; i++ )
396             fwprintf( fd, L" | %p", pException->ExceptionInformation[i] );
397
398 #ifdef _WIN64
399         fwprintf( fd, L"\n\n[context]\nRDI:%px\nRSI:%px\n" \
400                     "RBX:%px\nRDX:%px\nRCX:%px\nRAX:%px\n" \
401                     "RBP:%px\nRIP:%px\nRSP:%px\nR8:%px\n" \
402                     "R9:%px\nR10:%px\nR11:%px\nR12:%px\n" \
403                     "R13:%px\nR14:%px\nR15:%px\n",
404                         pContext->Rdi,pContext->Rsi,pContext->Rbx,
405                         pContext->Rdx,pContext->Rcx,pContext->Rax,
406                         pContext->Rbp,pContext->Rip,pContext->Rsp,
407                         pContext->R8,pContext->R9,pContext->R10,
408                         pContext->R11,pContext->R12,pContext->R13,
409                         pContext->R14,pContext->R15 );
410 #else
411         fwprintf( fd, L"\n\n[context]\nEDI:%px\nESI:%px\n" \
412                     "EBX:%px\nEDX:%px\nECX:%px\nEAX:%px\n" \
413                     "EBP:%px\nEIP:%px\nESP:%px\n",
414                         pContext->Edi,pContext->Esi,pContext->Ebx,
415                         pContext->Edx,pContext->Ecx,pContext->Eax,
416                         pContext->Ebp,pContext->Eip,pContext->Esp );
417 #endif
418
419         fwprintf( fd, L"\n[stacktrace]\n#EIP|base|module\n" );
420
421 #ifdef _WIN64
422         LPCVOID caller = (LPCVOID)pContext->Rip;
423         LPVOID *pBase  = (LPVOID*)pContext->Rbp;
424 #else
425         LPVOID *pBase  = (LPVOID*)pContext->Ebp;
426         LPCVOID caller = (LPCVOID)pContext->Eip;
427 #endif
428         for( unsigned frame = 0; frame <= 100; frame++ )
429         {
430             MEMORY_BASIC_INFORMATION mbi;
431             wchar_t module[ 256 ];
432             VirtualQuery( caller, &mbi, sizeof( mbi ) ) ;
433             GetModuleFileName( mbi.AllocationBase, module, 256 );
434             fwprintf( fd, L"%p|%ls\n", caller, module );
435
436             if( IsBadReadPtr( pBase, 2 * sizeof( void* ) ) )
437                 break;
438
439             /*The last BP points to NULL!*/
440             caller = *(pBase + 1);
441             if( !caller )
442                 break;
443             pBase = *pBase;
444             if( !pBase )
445                 break;
446         }
447
448         HANDLE hpid = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ,
449                                         FALSE, GetCurrentProcessId());
450         if (hpid) {
451             HMODULE mods[1024];
452             DWORD size;
453             if (EnumProcessModules(hpid, mods, sizeof(mods), &size)) {
454                 fwprintf( fd, L"\n\n[modules]\n" );
455                 for (unsigned int i = 0; i < size / sizeof(HMODULE); i++) {
456                     wchar_t module[ 256 ];
457                     GetModuleFileName(mods[i], module, 256);
458                     fwprintf( fd, L"%p|%ls\n", mods[i], module);
459                 }
460             }
461             CloseHandle(hpid);
462         }
463
464         fclose( fd );
465         fflush( stderr );
466         exit( 1 );
467     }
468 }