1 /*****************************************************************************
3 *****************************************************************************
4 * Copyright (C) 2003 the VideoLAN team
7 * Authors: Cyril Deguet <asmax@via.ecp.fr>
8 * Olivier Teulière <ipkiss@via.ecp.fr>
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
23 *****************************************************************************/
25 #include "theme_loader.hpp"
27 #include "../parser/builder.hpp"
28 #include "../parser/skin_parser.hpp"
29 #include "../src/os_factory.hpp"
30 #include "../src/vlcproc.hpp"
31 #include "../src/window_manager.hpp"
36 #ifdef HAVE_SYS_STAT_H
37 # include <sys/stat.h>
41 #elif defined( WIN32 ) && !defined( UNDER_CE )
50 #if defined( HAVE_ZLIB_H )
53 int gzopen_frontend ( char *pathname, int oflags, int mode );
54 int gzclose_frontend( int );
55 int gzread_frontend ( int, void *, size_t );
56 int gzwrite_frontend( int, const void *, size_t );
57 #if defined( HAVE_LIBTAR_H )
61 int tar_open ( TAR **t, char *pathname, int oflags );
62 int tar_extract_all ( TAR *t, char *prefix );
63 int tar_close ( TAR *t );
64 int getoct( char *p, int width );
66 int makedir( const char *newdir );
69 #define DEFAULT_XML_FILE "theme.xml"
70 #define WINAMP2_XML_FILE "winamp2.xml"
71 #define ZIP_BUFFER_SIZE 4096
74 bool ThemeLoader::load( const string &fileName )
76 // First, we try to un-targz the file, and if it fails we hope it's a XML
78 string path = getFilePath( fileName );
79 #if defined( HAVE_ZLIB_H )
80 if( ! extract( fileName ) && ! parse( path, fileName ) )
83 if( ! parse( path, fileName ) )
87 Theme *pNewTheme = getIntf()->p_sys->p_theme;
93 // Check if the skin to load is in the config file, to load its config
94 char *skin_last = config_GetPsz( getIntf(), "skins2-last" );
95 if( skin_last != NULL && fileName == (string)skin_last )
97 // Restore the theme configuration
98 getIntf()->p_sys->p_theme->loadConfig();
99 // Used to anchor the windows at the beginning
100 pNewTheme->getWindowManager().stopMove();
104 config_PutPsz( getIntf(), "skins2-last", fileName.c_str() );
106 pNewTheme->getWindowManager().showAll( true );
108 if( skin_last ) free( skin_last );
110 // The new theme cannot embed a video output yet
111 VlcProc::instance( getIntf() )->dropVout();
117 #if defined( HAVE_ZLIB_H )
118 bool ThemeLoader::extractTarGz( const string &tarFile, const string &rootDir )
121 #if defined( HAVE_LIBTAR_H )
122 tartype_t gztype = { (openfunc_t) gzopen_frontend,
123 (closefunc_t) gzclose_frontend,
124 (readfunc_t) gzread_frontend,
125 (writefunc_t) gzwrite_frontend };
127 if( tar_open( &t, (char *)tarFile.c_str(), &gztype, O_RDONLY, 0,
130 if( tar_open( &t, (char *)tarFile.c_str(), O_RDONLY ) == -1 )
136 if( tar_extract_all( t, (char *)rootDir.c_str() ) != 0 )
142 if( tar_close( t ) != 0 )
151 bool ThemeLoader::extractZip( const string &zipFile, const string &rootDir )
153 // Try to open the ZIP file
154 unzFile file = unzOpen( zipFile.c_str() );
155 unz_global_info info;
157 if( unzGetGlobalInfo( file, &info ) != UNZ_OK )
161 // Extract all the files in the archive
162 for( unsigned long i = 0; i < info.number_entry; i++ )
164 if( !extractFileInZip( file, rootDir ) )
166 msg_Warn( getIntf(), "Error while unzipping %s",
171 if( i < info.number_entry - 1 )
173 // Go the next file in the archive
174 if( unzGoToNextFile( file ) !=UNZ_OK )
176 msg_Warn( getIntf(), "Error while unzipping %s",
186 bool ThemeLoader::extractFileInZip( unzFile file, const string &rootDir )
188 // Read info for the current file
189 char filenameInZip[256];
190 unz_file_info fileInfo;
191 if( unzGetCurrentFileInfo( file, &fileInfo, filenameInZip,
192 sizeof( filenameInZip), NULL, 0, NULL, 0 )
198 // Allocate the buffer
199 void *pBuffer = malloc( ZIP_BUFFER_SIZE );
202 msg_Err( getIntf(), "Failed to allocate memory" );
206 // Get the path of the file
207 string fullPath = rootDir + "/" + filenameInZip;
208 string basePath = getFilePath( fullPath );
210 // Extract the file if is not a directory
211 if( basePath != fullPath )
213 if( unzOpenCurrentFile( file ) )
218 makedir( basePath.c_str() );
219 FILE *fout = fopen( fullPath.c_str(), "wb" );
222 msg_Err( getIntf(), "Error opening %s", fullPath.c_str() );
227 // Extract the current file
231 n = unzReadCurrentFile( file, pBuffer, ZIP_BUFFER_SIZE );
234 msg_Err( getIntf(), "Error while reading zip file" );
240 if( fwrite( pBuffer, n , 1, fout) != 1 )
242 msg_Err( getIntf(), "Error while writing %s",
252 if( unzCloseCurrentFile( file ) != UNZ_OK )
264 bool ThemeLoader::extract( const string &fileName )
267 char *tmpdir = tempnam( NULL, "vlt" );
268 string tempPath = tmpdir;
271 // Extract the file in a temporary directory
272 if( ! extractTarGz( fileName, tempPath ) &&
273 ! extractZip( fileName, tempPath ) )
278 OSFactory *pOsFactory = OSFactory::instance( getIntf() );
279 // Find the XML file in the theme
280 if( findFile( tempPath, DEFAULT_XML_FILE, xmlFile ) )
282 path = getFilePath( xmlFile );
286 // No XML file, check if it is a winamp2 skin
288 if( findFile( tempPath, "main.bmp", mainBmp ) )
290 msg_Dbg( getIntf(), "Try to load a winamp2 skin" );
291 path = getFilePath( mainBmp );
293 // Look for winamp2.xml in the resource path
294 list<string> resPath = pOsFactory->getResourcePath();
295 list<string>::const_iterator it;
296 for( it = resPath.begin(); it != resPath.end(); it++ )
298 if( findFile( *it, WINAMP2_XML_FILE, xmlFile ) )
304 if( !xmlFile.empty() )
306 // Parse the XML file
307 if (! parse( path, xmlFile ) )
309 msg_Err( getIntf(), "Error while parsing %s", xmlFile.c_str() );
315 msg_Err( getIntf(), "No XML found in theme %s", fileName.c_str() );
320 deleteTempFiles( tempPath );
325 void ThemeLoader::deleteTempFiles( const string &path )
327 OSFactory::instance( getIntf() )->rmDir( path );
329 #endif // HAVE_ZLIB_H
332 bool ThemeLoader::parse( const string &path, const string &xmlFile )
335 msg_Dbg( getIntf(), "Using skin file: %s", xmlFile.c_str() );
338 SkinParser parser( getIntf(), xmlFile, path );
339 if( ! parser.parse() )
341 msg_Err( getIntf(), "Failed to parse %s", xmlFile.c_str() );
345 // Build and store the theme
346 Builder builder( getIntf(), parser.getData() );
347 getIntf()->p_sys->p_theme = builder.build();
353 string ThemeLoader::getFilePath( const string &rFullPath )
355 OSFactory *pOsFactory = OSFactory::instance( getIntf() );
356 const string &sep = pOsFactory->getDirSeparator();
357 // Find the last separator ('/' or '\')
358 string::size_type p = rFullPath.rfind( sep, rFullPath.size() );
360 if( p != string::npos )
362 if( p < rFullPath.size() - 1)
364 basePath = rFullPath.substr( 0, p );
368 basePath = rFullPath;
375 bool ThemeLoader::findFile( const string &rootDir, const string &rFileName,
376 string &themeFilePath )
379 const string &sep = OSFactory::instance( getIntf() )->getDirSeparator();
382 struct dirent *pDirContent;
385 pCurrDir = opendir( rootDir.c_str() );
387 if( pCurrDir == NULL )
390 msg_Dbg( getIntf(), "Cannot open directory %s", rootDir.c_str() );
394 // Get the first directory entry
395 pDirContent = (dirent*)readdir( pCurrDir );
397 // While we still have entries in the directory
398 while( pDirContent != NULL )
400 string newURI = rootDir + sep + pDirContent->d_name;
403 if( string( pDirContent->d_name ) != "." &&
404 string( pDirContent->d_name ) != ".." )
406 #if defined( S_ISDIR )
407 struct stat stat_data;
408 stat( newURI.c_str(), &stat_data );
409 if( S_ISDIR(stat_data.st_mode) )
410 #elif defined( DT_DIR )
411 if( pDirContent->d_type & DT_DIR )
416 // Can we find the file in this subdirectory?
417 if( findFile( newURI, rFileName, themeFilePath ) )
419 closedir( pCurrDir );
425 // Found the theme file?
426 if( rFileName == string( pDirContent->d_name ) )
428 themeFilePath = newURI;
429 closedir( pCurrDir );
435 pDirContent = (dirent*)readdir( pCurrDir );
438 closedir( pCurrDir );
443 #if !defined( HAVE_LIBTAR_H ) && defined( HAVE_ZLIB_H )
445 /* Values used in typeflag field */
446 #define REGTYPE '0' /* regular file */
447 #define AREGTYPE '\0' /* regular file */
448 #define DIRTYPE '5' /* directory */
450 #define BLOCKSIZE 512
454 char name[100]; /* 0 */
455 char mode[8]; /* 100 */
456 char uid[8]; /* 108 */
457 char gid[8]; /* 116 */
458 char size[12]; /* 124 */
459 char mtime[12]; /* 136 */
460 char chksum[8]; /* 148 */
461 char typeflag; /* 156 */
462 char linkname[100]; /* 157 */
463 char magic[6]; /* 257 */
464 char version[2]; /* 263 */
465 char uname[32]; /* 265 */
466 char gname[32]; /* 297 */
467 char devmajor[8]; /* 329 */
468 char devminor[8]; /* 337 */
469 char prefix[155]; /* 345 */
475 char buffer[BLOCKSIZE];
476 struct tar_header header;
481 int tar_open( TAR **t, char *pathname, int oflags )
483 gzFile f = gzopen( pathname, "rb" );
486 fprintf( stderr, "Couldn't gzopen %s\n", pathname );
490 *t = (gzFile *)malloc( sizeof(gzFile) );
496 int tar_extract_all( TAR *t, char *prefix )
498 union tar_buffer buffer;
499 int len, err, getheader = 1, remaining = 0;
500 FILE *outfile = NULL;
501 char fname[BLOCKSIZE + PATH_MAX];
505 len = gzread( *t, &buffer, BLOCKSIZE );
508 fprintf( stderr, "%s\n", gzerror(*t, &err) );
512 * Always expect complete blocks to process
513 * the tar information.
515 if( len != 0 && len != BLOCKSIZE )
517 fprintf( stderr, "gzread: incomplete block read\n" );
522 * If we have to get a tar header
527 * If we met the end of the tar
528 * or the end-of-tar block, we are done
530 if( (len == 0) || (buffer.header.name[0] == 0) )
535 sprintf( fname, "%s/%s", prefix, buffer.header.name );
537 /* Check magic value in header */
538 if( strncmp( buffer.header.magic, "GNUtar", 6 ) &&
539 strncmp( buffer.header.magic, "ustar", 5 ) )
541 //fprintf(stderr, "not a tar file\n");
545 switch( buffer.header.typeflag )
552 remaining = getoct( buffer.header.size, 12 );
555 outfile = fopen( fname, "wb" );
556 if( outfile == NULL )
558 /* try creating directory */
559 char *p = strrchr( fname, '/' );
565 outfile = fopen( fname, "wb" );
568 fprintf( stderr, "tar couldn't create %s\n",
577 * could have no contents
579 getheader = (remaining) ? 0 : 1;
587 unsigned int bytes = (remaining > BLOCKSIZE)?BLOCKSIZE:remaining;
589 if( outfile != NULL )
591 if( fwrite( &buffer, sizeof(char), bytes, outfile ) != bytes )
593 fprintf( stderr, "error writing %s skipping...\n", fname );
602 if( outfile != NULL )
615 int tar_close( TAR *t )
617 if( gzclose( *t ) != Z_OK ) fprintf( stderr, "failed gzclose\n" );
623 /* helper functions */
624 int getoct( char *p, int width )
636 result = result * 8 + (c - '0');
644 # define mkdir(dirname,mode) _mkdir(dirname)
647 /* Recursive make directory
648 * Abort if you get an ENOENT errno somewhere in the middle
649 * e.g. ignore error "mkdir on existing directory"
651 * return 1 if OK, 0 on error
653 int makedir( const char *newdir )
655 char *p, *buffer = strdup( newdir );
656 int len = strlen( buffer );
664 if( buffer[len-1] == '/' )
666 buffer[len-1] = '\0';
669 if( mkdir( buffer, 0775 ) == 0 )
680 while( *p && *p != '\\' && *p != '/' ) p++;
683 if( ( mkdir( buffer, 0775 ) == -1 ) && ( errno == ENOENT ) )
685 fprintf( stderr, "couldn't create directory %s\n", buffer );
689 if( hold == 0 ) break;
698 static int currentGzFd = -1;
699 static void * currentGzVp = NULL;
701 int gzopen_frontend( char *pathname, int oflags, int mode )
720 gzf = gzopen( pathname, gzflags );
734 int gzclose_frontend( int fd )
736 if( currentGzVp != NULL && fd != -1 )
738 void *toClose = currentGzVp;
739 currentGzVp = NULL; currentGzFd = -1;
740 return gzclose( toClose );
745 int gzread_frontend( int fd, void *p_buffer, size_t i_length )
747 if( currentGzVp != NULL && fd != -1 )
749 return gzread( currentGzVp, p_buffer, i_length );
754 int gzwrite_frontend( int fd, const void * p_buffer, size_t i_length )
756 if( currentGzVp != NULL && fd != -1 )
758 return gzwrite( currentGzVp, const_cast<void*>(p_buffer), i_length );