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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 #define UNICODE
32 #include <vlc/vlc.h>
33 #include <windows.h>
34 #include <shellapi.h>
35
36 #if !defined(UNDER_CE)
37 # ifndef _WIN32_IE
38 #   define  _WIN32_IE 0x501
39 # endif
40 # include <fcntl.h>
41 # include <io.h>
42 # include <shlobj.h>
43 # include <wininet.h>
44 # define PSAPI_VERSION 1
45 # include <psapi.h>
46 # define HeapEnableTerminationOnCorruption (HEAP_INFORMATION_CLASS)1
47 static void check_crashdump(void);
48 LONG WINAPI vlc_exception_filter(struct _EXCEPTION_POINTERS *lpExceptionInfo);
49 static const wchar_t *crashdump_path;
50 #endif
51
52 #ifndef UNDER_CE
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 #else
64 static int parse_cmdline (char *line, char ***argvp)
65 {
66     char **argv = malloc (sizeof (char *));
67     int argc = 0;
68
69     while (*line != '\0')
70     {
71         char quote = 0;
72
73         /* Skips white spaces */
74         while (strchr ("\t ", *line))
75             line++;
76         if (!*line)
77             break;
78
79         /* Starts a new parameter */
80         argv = realloc (argv, (argc + 2) * sizeof (char *));
81         if (*line == '"')
82         {
83             quote = '"';
84             line++;
85         }
86         argv[argc++] = line;
87
88     more:
89             while (*line && !strchr ("\t ", *line))
90             line++;
91
92     if (line > argv[argc - 1] && line[-1] == quote)
93         /* End of quoted parameter */
94         line[-1] = 0;
95     else
96         if (*line && quote)
97     {
98         /* Space within a quote */
99         line++;
100         goto more;
101     }
102     else
103         /* End of unquoted parameter */
104         if (*line)
105             *line++ = 0;
106     }
107     argv[argc] = NULL;
108     *argvp = argv;
109     return argc;
110 }
111 #endif
112
113 int WINAPI WinMain( HINSTANCE hInstance, HINSTANCE hPrevInstance,
114 #ifndef UNDER_CE
115                     LPSTR lpCmdLine,
116 #else
117                     LPWSTR lpCmdLine,
118 #endif
119                     int nCmdShow )
120 {
121     int argc;
122
123 #ifndef UNDER_CE
124 #ifdef TOP_BUILDDIR
125     putenv("VLC_PLUGIN_PATH=Z:"TOP_BUILDDIR"/modules");
126     putenv("VLC_DATA_PATH=Z:"TOP_SRCDIR"/share");
127 #endif
128
129     HeapSetInformation(NULL, HeapEnableTerminationOnCorruption, NULL, 0);
130
131     /* SetProcessDEPPolicy */
132     HINSTANCE h_Kernel32 = LoadLibraryW(L"kernel32.dll");
133     if(h_Kernel32)
134     {
135         BOOL (WINAPI * mySetProcessDEPPolicy)( DWORD dwFlags);
136         BOOL (WINAPI * mySetDllDirectoryA)(const char* lpPathName);
137 # define PROCESS_DEP_ENABLE 1
138
139         mySetProcessDEPPolicy = (BOOL WINAPI (*)(DWORD))
140                             GetProcAddress(h_Kernel32, "SetProcessDEPPolicy");
141         if(mySetProcessDEPPolicy)
142             mySetProcessDEPPolicy(PROCESS_DEP_ENABLE);
143
144         /* Do NOT load any library from cwd. */
145         mySetDllDirectoryA = (BOOL WINAPI (*)(const char*)) GetProcAddress(h_Kernel32, "SetDllDirectoryA");
146         if(mySetDllDirectoryA)
147             mySetDllDirectoryA("");
148
149         FreeLibrary(h_Kernel32);
150     }
151
152     /* Args */
153     wchar_t **wargv = CommandLineToArgvW (GetCommandLine (), &argc);
154     if (wargv == NULL)
155         return 1;
156
157     char *argv[argc + 3];
158     BOOL crash_handling = TRUE;
159     int j = 0;
160
161     argv[j++] = FromWide( L"--media-library" );
162     argv[j++] = FromWide( L"--no-ignore-config" );
163     for (int i = 1; i < argc; i++)
164     {
165         if(!wcscmp(wargv[i], L"--no-crashdump"))
166         {
167             crash_handling = FALSE;
168             continue; /* don't give argument to libvlc */
169         }
170
171         argv[j++] = FromWide (wargv[i]);
172     }
173
174     argc = j;
175     argv[argc] = NULL;
176     LocalFree (wargv);
177
178     if(crash_handling)
179     {
180         static wchar_t path[MAX_PATH];
181         if( S_OK != SHGetFolderPathW( NULL, CSIDL_APPDATA | CSIDL_FLAG_CREATE,
182                     NULL, SHGFP_TYPE_CURRENT, path ) )
183             fprintf( stderr, "Can't open the vlc conf PATH\n" );
184         swprintf( path+wcslen( path ), L"%s", L"\\vlc\\crashdump" );
185         crashdump_path = &path[0];
186
187         check_crashdump();
188         SetUnhandledExceptionFilter(vlc_exception_filter);
189     }
190
191     _setmode( _fileno( stdin ), _O_BINARY ); /* Needed for pipes */
192
193 #else /* UNDER_CE */
194     char **argv, psz_cmdline[wcslen(lpCmdLine) * 4];
195
196     WideCharToMultiByte( CP_UTF8, 0, lpCmdLine, -1,
197                          psz_cmdline, sizeof (psz_cmdline), NULL, NULL );
198
199     argc = parse_cmdline (psz_cmdline, &argv);
200 #endif
201
202     /* Initialize libvlc */
203     libvlc_instance_t *vlc;
204     vlc = libvlc_new (argc, (const char **)argv);
205     if (vlc != NULL)
206     {
207         libvlc_set_user_agent (vlc, "VLC media player", "VLC/"PACKAGE_VERSION);
208         libvlc_add_intf (vlc, "globalhotkeys,none");
209         libvlc_add_intf (vlc, NULL);
210         libvlc_playlist_play (vlc, -1, 0, NULL);
211         libvlc_wait (vlc);
212         libvlc_release (vlc);
213     }
214
215     for (int i = 0; i < argc; i++)
216         free (argv[i]);
217
218     (void)hInstance; (void)hPrevInstance; (void)lpCmdLine; (void)nCmdShow;
219     return 0;
220 }
221
222 #if !defined( UNDER_CE )
223 /* Crashdumps handling */
224 static void check_crashdump(void)
225 {
226     FILE * fd = _wfopen ( crashdump_path, L"r, ccs=UTF-8" );
227     if( !fd )
228         return;
229     fclose( fd );
230
231     int answer = MessageBox( NULL, L"VLC media player just crashed." \
232     " Do you want to send a bug report to the developers team?",
233     L"VLC crash reporting", MB_YESNO);
234
235     if(answer == IDYES)
236     {
237         HINTERNET Hint = InternetOpen(L"VLC Crash Reporter", INTERNET_OPEN_TYPE_PRECONFIG, NULL,NULL,0);
238         if(Hint)
239         {
240             HINTERNET ftp = InternetConnect(Hint, L"crash.videolan.org", INTERNET_DEFAULT_FTP_PORT,
241                                             NULL, NULL, INTERNET_SERVICE_FTP, INTERNET_FLAG_PASSIVE, 0);
242             if(ftp)
243             {
244                 SYSTEMTIME now;
245                 GetSystemTime(&now);
246                 wchar_t remote_file[MAX_PATH];
247                 swprintf( remote_file, L"/crashes-win32/%04d%02d%02d%02d%02d%02d",
248                           now.wYear, now.wMonth, now.wDay, now.wHour, now.wMinute, now.wSecond );
249
250                 if( FtpPutFile( ftp, crashdump_path, remote_file, FTP_TRANSFER_TYPE_BINARY, 0) )
251                     MessageBox( NULL, L"Report sent correctly. Thanks a lot for the help.",
252                                 L"Report sent", MB_OK);
253                 else
254                     MessageBox( NULL, L"There was an error while transferring to the FTP server. "\
255                                 "Thanks a lot for the help anyway.",
256                                 L"Report sending failed", MB_OK);
257                 InternetCloseHandle(ftp);
258             }
259             else
260             {
261                 MessageBox( NULL, L"There was an error while connecting to the FTP server. "\
262                                 "Thanks a lot for the help anyway.",
263                                 L"Report sending failed", MB_OK);
264                 fprintf(stderr,"Can't connect to FTP server 0x%08lu\n",
265                         (unsigned long)GetLastError());
266             }
267             InternetCloseHandle(Hint);
268         }
269         else
270         {
271               MessageBox( NULL, L"There was an error while connecting to Internet. "\
272                                 "Thanks a lot for the help anyway.",
273                                 L"Report sending failed", MB_OK);
274         }
275     }
276
277     _wremove(crashdump_path);
278 }
279
280 /*****************************************************************************
281  * vlc_exception_filter: handles unhandled exceptions, like segfaults
282  *****************************************************************************/
283 LONG WINAPI vlc_exception_filter(struct _EXCEPTION_POINTERS *lpExceptionInfo)
284 {
285     if(IsDebuggerPresent())
286     {
287         //If a debugger is present, pass the exception to the debugger with EXCEPTION_CONTINUE_SEARCH
288         return EXCEPTION_CONTINUE_SEARCH;
289     }
290     else
291     {
292         fprintf( stderr, "unhandled vlc exception\n" );
293
294         FILE * fd = _wfopen ( crashdump_path, L"w, ccs=UTF-8" );
295
296         if( !fd )
297         {
298             fprintf( stderr, "\nerror while opening file" );
299             exit( 1 );
300         }
301
302         OSVERSIONINFO osvi;
303         ZeroMemory( &osvi, sizeof(OSVERSIONINFO) );
304         osvi.dwOSVersionInfoSize = sizeof( OSVERSIONINFO );
305         GetVersionEx( &osvi );
306
307         fwprintf( fd, L"[version]\nOS=%d.%d.%d.%d.%s\nVLC=" VERSION_MESSAGE, osvi.dwMajorVersion,
308                                                                osvi.dwMinorVersion,
309                                                                osvi.dwBuildNumber,
310                                                                osvi.dwPlatformId,
311                                                                osvi.szCSDVersion);
312
313         const CONTEXT *const pContext = (const CONTEXT *)lpExceptionInfo->ContextRecord;
314         const EXCEPTION_RECORD *const pException = (const EXCEPTION_RECORD *)lpExceptionInfo->ExceptionRecord;
315         /*No nested exceptions for now*/
316         fwprintf( fd, L"\n\n[exceptions]\n%08x at %px",pException->ExceptionCode,
317                                                 pException->ExceptionAddress );
318
319         for( unsigned int i = 0; i < pException->NumberParameters; i++ )
320             fwprintf( fd, L" | %p", pException->ExceptionInformation[i] );
321
322 #ifdef WIN64
323         fwprintf( fd, L"\n\n[context]\nRDI:%px\nRSI:%px\n" \
324                     "RBX:%px\nRDX:%px\nRCX:%px\nRAX:%px\n" \
325                     "RBP:%px\nRIP:%px\nRSP:%px\nR8:%px\n" \
326                     "R9:%px\nR10:%px\nR11:%px\nR12:%px\n" \
327                     "R13:%px\nR14:%px\nR15:%px\n",
328                         pContext->Rdi,pContext->Rsi,pContext->Rbx,
329                         pContext->Rdx,pContext->Rcx,pContext->Rax,
330                         pContext->Rbp,pContext->Rip,pContext->Rsp,
331                         pContext->R8,pContext->R9,pContext->R10,
332                         pContext->R11,pContext->R12,pContext->R13,
333                         pContext->R14,pContext->R15 );
334 #else
335         fwprintf( fd, L"\n\n[context]\nEDI:%px\nESI:%px\n" \
336                     "EBX:%px\nEDX:%px\nECX:%px\nEAX:%px\n" \
337                     "EBP:%px\nEIP:%px\nESP:%px\n",
338                         pContext->Edi,pContext->Esi,pContext->Ebx,
339                         pContext->Edx,pContext->Ecx,pContext->Eax,
340                         pContext->Ebp,pContext->Eip,pContext->Esp );
341 #endif
342
343         HANDLE hpid = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ,
344                                         FALSE, GetCurrentProcessId());
345         if (hpid) {
346             HMODULE mods[1024];
347             DWORD size;
348             if (EnumProcessModules(hpid, mods, sizeof(mods), &size)) {
349                 fwprintf( fd, L"\n\n[modules]\n" );
350                 for (unsigned int i = 0; i < size / sizeof(HMODULE); i++) {
351                     wchar_t module[ 256 ];
352                     GetModuleFileName(mods[i], module, 256);
353                     fwprintf( fd, L"%p|%s\n", mods[i], module);
354                 }
355             }
356             CloseHandle(hpid);
357         }
358
359
360         fwprintf( fd, L"\n[stacktrace]\n#EIP|base|module\n" );
361
362 #ifdef WIN64
363         LPCVOID caller = (LPCVOID)pContext->Rip;
364         LPVOID *pBase  = (LPVOID*)pContext->Rbp;
365 #else
366         LPVOID *pBase  = (LPVOID*)pContext->Ebp;
367         LPCVOID caller = (LPCVOID)pContext->Eip;
368 #endif
369         for( unsigned frame = 0; frame <= 100; frame++ )
370         {
371             MEMORY_BASIC_INFORMATION mbi;
372             wchar_t module[ 256 ];
373             VirtualQuery( caller, &mbi, sizeof( mbi ) ) ;
374             GetModuleFileName( mbi.AllocationBase, module, 256 );
375             fwprintf( fd, L"%p|%s\n", caller, module );
376
377             /*The last BP points to NULL!*/
378             caller = *(pBase + 1);
379             if( !caller )
380                 break;
381             pBase = *pBase;
382         }
383
384         fclose( fd );
385         fflush( stderr );
386         exit( 1 );
387     }
388 }
389 #endif