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., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, 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 )
45 #if defined( HAVE_ZLIB_H )
48 int gzopen_frontend ( const char *pathname, int oflags, int mode );
49 int gzclose_frontend( int );
50 int gzread_frontend ( int, void *, size_t );
51 int gzwrite_frontend( int, const void *, size_t );
52 #if defined( HAVE_LIBTAR_H )
56 int tar_open ( TAR **t, char *pathname, int oflags );
57 int tar_extract_all ( TAR *t, char *prefix );
58 int tar_close ( TAR *t );
59 int getoct( char *p, int width );
61 int makedir( const char *newdir );
64 #define DEFAULT_XML_FILE "theme.xml"
65 #define WINAMP2_XML_FILE "winamp2.xml"
66 #define ZIP_BUFFER_SIZE 4096
69 bool ThemeLoader::load( const string &fileName )
71 string path = getFilePath( fileName );
73 //Before all, let's see if the file is present
75 if( vlc_stat( fileName.c_str(), &p_stat ) )
78 // First, we try to un-targz the file, and if it fails we hope it's a XML
81 #if defined( HAVE_ZLIB_H )
82 if( ! extract( sToLocale( fileName ) ) && ! parse( path, fileName ) )
85 if( ! parse( path, fileName ) )
89 Theme *pNewTheme = getIntf()->p_sys->p_theme;
93 // Restore the theme configuration
94 getIntf()->p_sys->p_theme->loadConfig();
96 // Retain new loaded skins in config
97 config_PutPsz( getIntf(), "skins2-last", fileName.c_str() );
103 #if defined( HAVE_ZLIB_H )
104 bool ThemeLoader::extractTarGz( const string &tarFile, const string &rootDir )
107 #if defined( HAVE_LIBTAR_H )
108 tartype_t gztype = { (openfunc_t) gzopen_frontend,
109 (closefunc_t) gzclose_frontend,
110 (readfunc_t) gzread_frontend,
111 (writefunc_t) gzwrite_frontend };
113 if( tar_open( &t, (char *)tarFile.c_str(), &gztype, O_RDONLY, 0,
116 if( tar_open( &t, (char *)tarFile.c_str(), O_RDONLY ) == -1 )
122 if( tar_extract_all( t, (char *)rootDir.c_str() ) != 0 )
128 if( tar_close( t ) != 0 )
137 bool ThemeLoader::extractZip( const string &zipFile, const string &rootDir )
139 // Try to open the ZIP file
140 unzFile file = unzOpen( zipFile.c_str() );
141 unz_global_info info;
143 if( unzGetGlobalInfo( file, &info ) != UNZ_OK )
147 // Extract all the files in the archive
148 for( unsigned long i = 0; i < info.number_entry; i++ )
150 if( !extractFileInZip( file, rootDir ) )
152 msg_Warn( getIntf(), "error while unzipping %s",
158 if( i < info.number_entry - 1 )
160 // Go the next file in the archive
161 if( unzGoToNextFile( file ) !=UNZ_OK )
163 msg_Warn( getIntf(), "error while unzipping %s",
175 bool ThemeLoader::extractFileInZip( unzFile file, const string &rootDir )
177 // Read info for the current file
178 char filenameInZip[256];
179 unz_file_info fileInfo;
180 if( unzGetCurrentFileInfo( file, &fileInfo, filenameInZip,
181 sizeof( filenameInZip), NULL, 0, NULL, 0 )
189 // Convert the file name to lower case, because some winamp skins
190 // use the wrong case...
191 for( size_t i=0; i< strlen( filenameInZip ); i++)
193 filenameInZip[i] = tolower( filenameInZip[i] );
198 // Allocate the buffer
199 void *pBuffer = malloc( ZIP_BUFFER_SIZE );
203 // Get the path of the file
204 OSFactory *pOsFactory = OSFactory::instance( getIntf() );
205 string fullPath = rootDir
206 + pOsFactory->getDirSeparator()
207 + fixDirSeparators( 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 = sFromLocale( tmpdir );
271 // Extract the file in a temporary directory
272 if( ! extractTarGz( fileName, tempPath ) &&
273 ! extractZip( fileName, tempPath ) )
275 deleteTempFiles( tempPath );
281 OSFactory *pOsFactory = OSFactory::instance( getIntf() );
282 // Find the XML file in the theme
283 if( findFile( tempPath, DEFAULT_XML_FILE, xmlFile ) )
285 path = getFilePath( xmlFile );
289 // No XML file, check if it is a winamp2 skin
291 if( findFile( tempPath, "main.bmp", mainBmp ) )
293 msg_Dbg( getIntf(), "trying to load a winamp2 skin" );
294 path = getFilePath( mainBmp );
296 // Look for winamp2.xml in the resource path
297 list<string> resPath = pOsFactory->getResourcePath();
298 list<string>::const_iterator it;
299 for( it = resPath.begin(); it != resPath.end(); it++ )
301 if( findFile( *it, WINAMP2_XML_FILE, xmlFile ) )
307 if( !xmlFile.empty() )
309 // Parse the XML file
310 if (! parse( path, xmlFile ) )
312 msg_Err( getIntf(), "error while parsing %s", xmlFile.c_str() );
318 msg_Err( getIntf(), "no XML found in theme %s", fileName.c_str() );
323 deleteTempFiles( tempPath );
328 void ThemeLoader::deleteTempFiles( const string &path )
330 OSFactory::instance( getIntf() )->rmDir( path );
332 #endif // HAVE_ZLIB_H
335 bool ThemeLoader::parse( const string &path, const string &xmlFile )
338 msg_Dbg( getIntf(), "using skin file: %s", xmlFile.c_str() );
341 SkinParser parser( getIntf(), xmlFile, path );
342 if( ! parser.parse() )
345 // Build and store the theme
346 Builder builder( getIntf(), parser.getData(), path );
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 string ThemeLoader::fixDirSeparators( const string &rPath )
377 OSFactory *pOsFactory = OSFactory::instance( getIntf() );
378 const string &sep = pOsFactory->getDirSeparator();
379 string::size_type p = rPath.find( "/", 0 );
380 string newPath = rPath;
381 while( p != string::npos )
383 newPath = newPath.replace( p, 1, sep );
384 p = newPath.find( "/", p + 1 );
390 bool ThemeLoader::findFile( const string &rootDir, const string &rFileName,
391 string &themeFilePath )
394 const string &sep = OSFactory::instance( getIntf() )->getDirSeparator();
400 pCurrDir = vlc_opendir( rootDir.c_str() );
402 if( pCurrDir == NULL )
405 msg_Dbg( getIntf(), "cannot open directory %s", rootDir.c_str() );
409 // While we still have entries in the directory
410 while( ( pszDirContent = vlc_readdir( pCurrDir ) ) != NULL )
412 string newURI = rootDir + sep + pszDirContent;
415 if( string( pszDirContent ) != "." &&
416 string( pszDirContent ) != ".." )
418 #if defined( S_ISDIR )
419 struct stat stat_data;
421 if( ( vlc_stat( newURI.c_str(), &stat_data ) == 0 )
422 && S_ISDIR(stat_data.st_mode) )
423 #elif defined( DT_DIR )
424 if( pDirContent->d_type & DT_DIR )
429 // Can we find the file in this subdirectory?
430 if( findFile( newURI, rFileName, themeFilePath ) )
432 free( pszDirContent );
433 closedir( pCurrDir );
439 // Found the theme file?
440 if( rFileName == string( pszDirContent ) )
442 themeFilePath = newURI;
443 free( pszDirContent );
444 closedir( pCurrDir );
450 free( pszDirContent );
453 closedir( pCurrDir );
458 #if !defined( HAVE_LIBTAR_H ) && defined( HAVE_ZLIB_H )
460 /* Values used in typeflag field */
461 #define REGTYPE '0' /* regular file */
462 #define AREGTYPE '\0' /* regular file */
463 #define DIRTYPE '5' /* directory */
465 #define BLOCKSIZE 512
469 char name[100]; /* 0 */
470 char mode[8]; /* 100 */
471 char uid[8]; /* 108 */
472 char gid[8]; /* 116 */
473 char size[12]; /* 124 */
474 char mtime[12]; /* 136 */
475 char chksum[8]; /* 148 */
476 char typeflag; /* 156 */
477 char linkname[100]; /* 157 */
478 char magic[6]; /* 257 */
479 char version[2]; /* 263 */
480 char uname[32]; /* 265 */
481 char gname[32]; /* 297 */
482 char devmajor[8]; /* 329 */
483 char devminor[8]; /* 337 */
484 char prefix[155]; /* 345 */
490 char buffer[BLOCKSIZE];
491 struct tar_header header;
496 int tar_open( TAR **t, char *pathname, int oflags )
498 gzFile f = gzopen( pathname, "rb" );
501 fprintf( stderr, "Couldn't gzopen %s\n", pathname );
505 *t = (gzFile *)malloc( sizeof(gzFile) );
511 int tar_extract_all( TAR *t, char *prefix )
513 union tar_buffer buffer;
514 int len, err, getheader = 1, remaining = 0;
515 FILE *outfile = NULL;
516 char fname[BLOCKSIZE + PATH_MAX];
520 len = gzread( *t, &buffer, BLOCKSIZE );
523 fprintf( stderr, "%s\n", gzerror(*t, &err) );
527 * Always expect complete blocks to process
528 * the tar information.
530 if( len != 0 && len != BLOCKSIZE )
532 fprintf( stderr, "gzread: incomplete block read\n" );
537 * If we have to get a tar header
542 * If we met the end of the tar
543 * or the end-of-tar block, we are done
545 if( (len == 0) || (buffer.header.name[0] == 0) )
550 sprintf( fname, "%s/%s", prefix, buffer.header.name );
552 /* Check magic value in header */
553 if( strncmp( buffer.header.magic, "GNUtar", 6 ) &&
554 strncmp( buffer.header.magic, "ustar", 5 ) )
556 //fprintf(stderr, "not a tar file\n");
560 switch( buffer.header.typeflag )
567 remaining = getoct( buffer.header.size, 12 );
568 if( !remaining ) outfile = NULL; else
570 outfile = fopen( fname, "wb" );
571 if( outfile == NULL )
573 /* try creating directory */
574 char *p = strrchr( fname, '/' );
580 outfile = fopen( fname, "wb" );
583 fprintf( stderr, "tar couldn't create %s\n",
591 * could have no contents
593 getheader = (remaining) ? 0 : 1;
601 unsigned int bytes = (remaining > BLOCKSIZE)?BLOCKSIZE:remaining;
603 if( outfile != NULL )
605 if( fwrite( &buffer, sizeof(char), bytes, outfile ) != bytes )
607 fprintf( stderr, "error writing %s skipping...\n", fname );
617 if( outfile != NULL )
630 int tar_close( TAR *t )
632 if( gzclose( *t ) != Z_OK ) fprintf( stderr, "failed gzclose\n" );
638 /* helper functions */
639 int getoct( char *p, int width )
651 result = result * 8 + (c - '0');
659 # define mkdir(dirname,mode) _mkdir(dirname)
662 /* Recursive make directory
663 * Abort if you get an ENOENT errno somewhere in the middle
664 * e.g. ignore error "mkdir on existing directory"
666 * return 1 if OK, 0 on error
668 int makedir( const char *newdir )
670 char *p, *buffer = strdup( newdir );
671 int len = strlen( buffer );
679 if( buffer[len-1] == '/' )
681 buffer[len-1] = '\0';
684 if( mkdir( buffer, 0775 ) == 0 )
695 while( *p && *p != '\\' && *p != '/' ) p++;
698 if( ( mkdir( buffer, 0775 ) == -1 ) && ( errno == ENOENT ) )
700 fprintf( stderr, "couldn't create directory %s\n", buffer );
704 if( hold == 0 ) break;
713 static int currentGzFd = -1;
714 static void * currentGzVp = NULL;
716 int gzopen_frontend( const char *pathname, int oflags, int mode )
735 gzf = gzopen( pathname, gzflags );
749 int gzclose_frontend( int fd )
751 if( currentGzVp != NULL && fd != -1 )
753 void *toClose = currentGzVp;
754 currentGzVp = NULL; currentGzFd = -1;
755 return gzclose( toClose );
760 int gzread_frontend( int fd, void *p_buffer, size_t i_length )
762 if( currentGzVp != NULL && fd != -1 )
764 return gzread( currentGzVp, p_buffer, i_length );
769 int gzwrite_frontend( int fd, const void * p_buffer, size_t i_length )
771 if( currentGzVp != NULL && fd != -1 )
773 return gzwrite( currentGzVp, const_cast<void*>(p_buffer), i_length );