1 /*****************************************************************************
2 * mvar.c : Variables handling for the HTTP Interface
3 *****************************************************************************
4 * Copyright (C) 2001-2007 the VideoLAN team
7 * Authors: Gildas Bazin <gbazin@netcourrier.com>
8 * Laurent Aimar <fenrir@via.ecp.fr>
9 * Christophe Massiot <massiot@via.ecp.fr>
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License as published by
13 * the Free Software Foundation; either version 2 of the License, or
14 * (at your option) any later version.
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU General Public License for more details.
21 * You should have received a copy of the GNU General Public License
22 * along with this program; if not, write to the Free Software
23 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
24 *****************************************************************************/
34 #ifdef HAVE_SYS_STAT_H
39 /* Utility function for scandir */
40 static int Filter( const char *foo )
42 return strcmp( foo, "." );
45 static int InsensitiveAlphasort( const char **foo1,
48 return strcasecmp( *foo1, *foo2 );
53 mvar_t *mvar_New( const char *name, const char *value )
55 mvar_t *v = malloc( sizeof( mvar_t ) );
58 v->name = strdup( name );
59 v->value = strdup( value ? value : "" );
62 v->field = xmalloc( sizeof( mvar_t * ) );
68 void mvar_Delete( mvar_t *v )
75 for( i = 0; i < v->i_field; i++ )
77 mvar_Delete( v->field[i] );
83 void mvar_AppendVar( mvar_t *v, mvar_t *f )
85 v->field = xrealloc( v->field, sizeof( mvar_t * ) * ( v->i_field + 2 ) );
86 v->field[v->i_field] = f;
90 mvar_t *mvar_Duplicate( const mvar_t *v )
95 n = mvar_New( v->name, v->value );
96 for( i = 0; i < v->i_field; i++ )
98 mvar_AppendVar( n, mvar_Duplicate( v->field[i] ) );
104 void mvar_PushVar( mvar_t *v, mvar_t *f )
106 v->field = xrealloc( v->field, sizeof( mvar_t * ) * ( v->i_field + 2 ) );
109 memmove( &v->field[1], &v->field[0], sizeof( mvar_t * ) * v->i_field );
115 void mvar_RemoveVar( mvar_t *v, mvar_t *f )
118 for( i = 0; i < v->i_field; i++ )
120 if( v->field[i] == f )
125 if( i >= v->i_field )
130 if( i + 1 < v->i_field )
132 memmove( &v->field[i], &v->field[i+1], sizeof( mvar_t * ) * ( v->i_field - i - 1 ) );
135 /* FIXME should do a realloc */
138 mvar_t *mvar_GetVar( mvar_t *s, const char *name )
140 /* format: name[index].field */
141 const char *field = strchr( name, '.' );
142 char base[1 + (field ? (size_t)(field - name) : strlen( name ))];
146 strlcpy( base, name, sizeof (base) );
150 if( ( p = strchr( base, '[' ) ) != NULL )
153 unsigned long l = strtoul( p, &end, 0 );
155 if( ( l > INT_MAX ) || strcmp( "]", end ) )
166 for( i = 0; i < s->i_field; i++ )
168 if( !strcmp( s->field[i]->name, base ) )
178 return mvar_GetVar( s->field[i], field );
190 const char *mvar_GetValue( mvar_t *v, const char *field )
198 mvar_t *f = mvar_GetVar( v, field );
210 void mvar_PushNewVar( mvar_t *vars, const char *name,
213 mvar_t *f = mvar_New( name, value );
214 mvar_PushVar( vars, f );
217 void mvar_AppendNewVar( mvar_t *vars, const char *name,
220 mvar_t *f = mvar_New( name, value );
221 mvar_AppendVar( vars, f );
225 /* arg= start[:stop[:step]],.. */
226 mvar_t *mvar_IntegerSetNew( const char *name, const char *arg )
228 char *dup = strdup( arg );
230 mvar_t *s = mvar_New( name, "set" );
235 int i_start,i_stop,i_step;
238 p = strchr( str, ',' );
245 i_match = sscanf( str, "%d:%d:%d", &i_start, &i_stop, &i_step );
252 else if( i_match == 2 )
254 i_step = i_start < i_stop ? 1 : -1;
261 if( ( i_start <= i_stop && i_step > 0 ) ||
262 ( i_start >= i_stop && i_step < 0 ) )
264 for( i = i_start; ; i += i_step )
268 if( ( i_step > 0 && i > i_stop ) ||
269 ( i_step < 0 && i < i_stop ) )
274 sprintf( value, "%d", i );
276 mvar_PushNewVar( s, name, value );
287 /********************************************************************
288 * Special sets handling
289 ********************************************************************/
291 mvar_t *mvar_PlaylistSetNew( intf_thread_t *p_intf, char *name,
294 mvar_t *s = mvar_New( name, "set" );
295 playlist_Lock( p_pl );
296 PlaylistListNode( p_intf, p_pl, p_pl->p_root_category , name, s, 0 );
297 playlist_Unlock( p_pl );
301 mvar_t *mvar_InfoSetNew( char *name, input_thread_t *p_input )
303 mvar_t *s = mvar_New( name, "set" );
306 if( p_input == NULL || p_input->p == NULL /* workarround assert in input_GetItem */ )
311 vlc_mutex_lock( &input_GetItem(p_input)->lock );
312 for ( i = 0; i < input_GetItem(p_input)->i_categories; i++ )
314 info_category_t *p_category = input_GetItem(p_input)->pp_categories[i];
316 mvar_t *cat = mvar_New( name, "set" );
317 mvar_t *iset = mvar_New( "info", "set" );
319 mvar_AppendNewVar( cat, "name", p_category->psz_name );
320 mvar_AppendVar( cat, iset );
322 for ( j = 0; j < p_category->i_infos; j++ )
324 info_t *p_info = p_category->pp_infos[j];
325 mvar_t *info = mvar_New( "info", "" );
327 /* msg_Dbg( p_input, "adding info name=%s value=%s",
328 psz_name, psz_value ); */
329 mvar_AppendNewVar( info, "name", p_info->psz_name );
330 mvar_AppendNewVar( info, "value", p_info->psz_value );
331 mvar_AppendVar( iset, info );
333 mvar_AppendVar( s, cat );
335 vlc_mutex_unlock( &input_GetItem(p_input)->lock );
340 mvar_t *mvar_ObjectSetNew( intf_thread_t *p_intf, char *psz_name,
341 const char *psz_capability )
344 mvar_t *s = mvar_New( psz_name, "set" );
347 module_t **p_list = module_list_get( NULL );
349 for( i = 0; p_list[i]; i++ )
351 module_t *p_parser = p_list[i];
352 if( module_provides( p_parser, psz_capability ) )
354 mvar_t *sd = mvar_New( "sd", module_get_object( p_parser ) );
355 mvar_AppendNewVar( sd, "name",
356 module_get_name( p_parser, true ) );
357 mvar_AppendVar( s, sd );
361 module_list_free( p_list );
366 mvar_t *mvar_InputVarSetNew( intf_thread_t *p_intf, char *name,
367 input_thread_t *p_input,
368 const char *psz_variable )
370 intf_sys_t *p_sys = p_intf->p_sys;
371 mvar_t *s = mvar_New( name, "set" );
372 vlc_value_t val, val_list, text_list;
375 if( p_input == NULL )
380 /* Check the type of the object variable */
381 i_type = var_Type( p_sys->p_input, psz_variable );
383 /* Make sure we want to display the variable */
384 if( i_type & VLC_VAR_HASCHOICE )
386 var_Change( p_sys->p_input, psz_variable, VLC_VAR_CHOICESCOUNT, &val, NULL );
387 if( val.i_int == 0 ) return s;
388 if( (i_type & VLC_VAR_TYPE) != VLC_VAR_VARIABLE && val.i_int == 1 )
396 switch( i_type & VLC_VAR_TYPE )
400 case VLC_VAR_VARIABLE:
402 case VLC_VAR_INTEGER:
405 /* Variable doesn't exist or isn't handled */
409 if( var_Get( p_sys->p_input, psz_variable, &val ) < 0 )
414 if( var_Change( p_sys->p_input, psz_variable, VLC_VAR_GETLIST,
415 &val_list, &text_list ) < 0 )
417 if( (i_type & VLC_VAR_TYPE) == VLC_VAR_STRING ) free( val.psz_string );
421 for( i = 0; i < val_list.p_list->i_count; i++ )
426 switch( i_type & VLC_VAR_TYPE )
429 itm = mvar_New( name, "set" );
430 mvar_AppendNewVar( itm, "name", text_list.p_list->p_values[i].psz_string );
431 mvar_AppendNewVar( itm, "id", val_list.p_list->p_values[i].psz_string );
432 snprintf( psz_int, sizeof(psz_int), "%d",
433 ( !strcmp( val.psz_string,
434 val_list.p_list->p_values[i].psz_string )
435 && !( i_type & VLC_VAR_ISCOMMAND ) ) );
436 mvar_AppendNewVar( itm, "selected", psz_int );
437 mvar_AppendVar( s, itm );
440 case VLC_VAR_INTEGER:
441 itm = mvar_New( name, "set" );
442 mvar_AppendNewVar( itm, "name", text_list.p_list->p_values[i].psz_string );
443 snprintf( psz_int, sizeof(psz_int), "%d",
444 val_list.p_list->p_values[i].i_int );
445 mvar_AppendNewVar( itm, "id", psz_int );
446 snprintf( psz_int, sizeof(psz_int), "%d",
447 ( val.i_int == val_list.p_list->p_values[i].i_int )
448 && !( i_type & VLC_VAR_ISCOMMAND ) );
449 mvar_AppendNewVar( itm, "selected", psz_int );
450 mvar_AppendVar( s, itm );
457 /* clean up everything */
458 if( (i_type & VLC_VAR_TYPE) == VLC_VAR_STRING ) free( val.psz_string );
459 var_FreeList( &val_list, &text_list );
464 mvar_t *mvar_HttpdInfoSetNew( char *name, httpd_t *p_httpd, int i_type )
466 mvar_t *s = mvar_New( name, "set" );
470 if( !p_httpd->pf_control( p_httpd, i_type, &info, NULL ) )
472 for( i= 0; i < info.i_count; )
476 inf = mvar_New( name, "set" );
479 /* fprintf( stderr," mvar_HttpdInfoSetNew: append name=`%s' value=`%s'\n",
480 info.info[i].psz_name, info.info[i].psz_value ); */
481 mvar_AppendNewVar( inf,
482 info.info[i].psz_name,
483 info.info[i].psz_value );
485 } while( i < info.i_count && strcmp( info.info[i].psz_name, "id" ) );
486 mvar_AppendVar( s, inf );
491 for( i = 0; i < info.i_count; i++ )
493 free( info.info[i].psz_name );
494 free( info.info[i].psz_value );
496 if( info.i_count > 0 )
505 mvar_t *mvar_FileSetNew( intf_thread_t *p_intf, char *name,
508 mvar_t *s = mvar_New( name, "set" );
509 char **ppsz_dir_content;
510 int i_dir_content, i;
511 psz_dir = RealPath( psz_dir );
513 /* parse psz_src dir */
514 if( ( i_dir_content = vlc_scandir( psz_dir, &ppsz_dir_content, Filter,
515 InsensitiveAlphasort ) ) == -1 )
517 if( errno != ENOENT && errno != ENOTDIR )
518 msg_Warn( p_intf, "error while scanning dir %s (%m)", psz_dir );
523 for( i = 0; i < i_dir_content; i++ )
525 #ifdef HAVE_SYS_STAT_H
526 struct stat stat_info;
528 char *psz_name = ppsz_dir_content[i], *psz_ext, *psz_dummy;
529 char psz_tmp[strlen( psz_dir ) + 1 + strlen( psz_name ) + 1];
533 if( psz_dir[0] == '\0' || (psz_dir[0] == '\\' && psz_dir[1] == '\0') )
535 strcpy( psz_tmp, psz_name );
540 sprintf( psz_tmp, "%s"DIR_SEP"%s", psz_dir, psz_name );
542 #ifdef HAVE_SYS_STAT_H
543 if( vlc_stat( psz_tmp, &stat_info ) == -1 )
550 f = mvar_New( name, "set" );
552 /* put lower-case file extension in 'ext' */
553 psz_ext = strrchr( psz_name, '.' );
554 psz_ext = strdup( psz_ext != NULL ? psz_ext + 1 : "" );
555 for( psz_dummy = psz_ext; *psz_dummy != '\0'; psz_dummy++ )
556 *psz_dummy = tolower( *psz_dummy );
558 mvar_AppendNewVar( f, "ext", psz_ext );
562 if( psz_dir[0] == '\0' || (psz_dir[0] == '\\' && psz_dir[1] == '\0') )
565 sprintf( psz_tmp, "%c:", psz_name[0] );
566 mvar_AppendNewVar( f, "name", psz_name );
567 mvar_AppendNewVar( f, "basename", psz_tmp );
568 mvar_AppendNewVar( f, "type", "directory" );
569 mvar_AppendNewVar( f, "size", "unknown" );
570 mvar_AppendNewVar( f, "date", "unknown" );
576 char psz_tmp[strlen( psz_dir ) + 1 + strlen( psz_name ) + 1];
578 sprintf( psz_tmp, "%s"DIR_SEP"%s", psz_dir, psz_name );
579 mvar_AppendNewVar( f, "name", psz_tmp );
580 mvar_AppendNewVar( f, "basename", psz_name );
582 #ifdef HAVE_SYS_STAT_H
583 if( S_ISDIR( stat_info.st_mode ) )
585 mvar_AppendNewVar( f, "type", "directory" );
587 else if( S_ISREG( stat_info.st_mode ) )
589 mvar_AppendNewVar( f, "type", "file" );
593 mvar_AppendNewVar( f, "type", "unknown" );
596 snprintf( psz_buf, sizeof( psz_buf ), "%"PRId64,
597 (int64_t)stat_info.st_size );
598 mvar_AppendNewVar( f, "size", psz_buf );
600 /* FIXME memory leak FIXME */
602 ctime_r( &stat_info.st_mtime, psz_buf );
603 mvar_AppendNewVar( f, "date", psz_buf );
605 mvar_AppendNewVar( f, "date", ctime( &stat_info.st_mtime ) );
609 mvar_AppendNewVar( f, "type", "unknown" );
610 mvar_AppendNewVar( f, "size", "unknown" );
611 mvar_AppendNewVar( f, "date", "unknown" );
615 mvar_AppendVar( s, f );
621 free( ppsz_dir_content );
625 static void mvar_VlmSetNewLoop( char *name, vlm_t *vlm, mvar_t *s,
626 vlm_message_t *el, bool b_name )
632 /* Add a node with name and info */
633 set = mvar_New( name, "set" );
636 mvar_AppendNewVar( set, "name", el->psz_name );
639 for( k = 0; k < el->i_child; k++ )
641 vlm_message_t *ch = el->child[k];
642 if( ch->i_child > 0 )
644 mvar_VlmSetNewLoop( ch->psz_name, vlm, set, ch, false );
650 mvar_AppendNewVar( set, ch->psz_name, ch->psz_value );
654 mvar_AppendNewVar( set, el->psz_name, ch->psz_name );
659 mvar_AppendVar( s, set );
662 mvar_t *mvar_VlmSetNew( char *name, vlm_t *vlm )
664 mvar_t *s = mvar_New( name, "set" );
669 if( vlm == NULL ) return s;
671 if( vlm_ExecuteCommand( vlm, "show", &msg ) )
674 for( i = 0; i < msg->i_child; i++ )
676 /* Over media, schedule */
677 vlm_message_t *ch = msg->child[i];
680 for( j = 0; j < ch->i_child; j++ )
683 vlm_message_t *el = ch->child[j];
684 vlm_message_t *inf, *desc;
685 char psz[6 + strlen(el->psz_name)];
687 sprintf( psz, "show %s", el->psz_name );
688 if( vlm_ExecuteCommand( vlm, psz, &inf ) )
690 desc = inf->child[0];
692 mvar_VlmSetNewLoop( el->psz_name, vlm, s, desc, true );
694 vlm_MessageDelete( inf );
697 vlm_MessageDelete( msg );
698 #endif /* ENABLE_VLM */