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 /* Utility function for scandir */
35 static int Filter( const char *foo )
37 return strcmp( foo, "." );
40 static int InsensitiveAlphasort( const char **foo1,
43 return strcasecmp( *foo1, *foo2 );
48 mvar_t *mvar_New( const char *name, const char *value )
50 mvar_t *v = malloc( sizeof( mvar_t ) );
53 v->name = strdup( name );
54 v->value = strdup( value ? value : "" );
57 v->field = malloc( sizeof( mvar_t * ) );
63 void mvar_Delete( mvar_t *v )
70 for( i = 0; i < v->i_field; i++ )
72 mvar_Delete( v->field[i] );
78 void mvar_AppendVar( mvar_t *v, mvar_t *f )
80 v->field = realloc( v->field, sizeof( mvar_t * ) * ( v->i_field + 2 ) );
81 v->field[v->i_field] = f;
85 mvar_t *mvar_Duplicate( const mvar_t *v )
90 n = mvar_New( v->name, v->value );
91 for( i = 0; i < v->i_field; i++ )
93 mvar_AppendVar( n, mvar_Duplicate( v->field[i] ) );
99 void mvar_PushVar( mvar_t *v, mvar_t *f )
101 v->field = realloc( v->field, sizeof( mvar_t * ) * ( v->i_field + 2 ) );
104 memmove( &v->field[1], &v->field[0], sizeof( mvar_t * ) * v->i_field );
110 void mvar_RemoveVar( mvar_t *v, mvar_t *f )
113 for( i = 0; i < v->i_field; i++ )
115 if( v->field[i] == f )
120 if( i >= v->i_field )
125 if( i + 1 < v->i_field )
127 memmove( &v->field[i], &v->field[i+1], sizeof( mvar_t * ) * ( v->i_field - i - 1 ) );
130 /* FIXME should do a realloc */
133 mvar_t *mvar_GetVar( mvar_t *s, const char *name )
135 /* format: name[index].field */
136 const char *field = strchr( name, '.' );
137 char base[1 + (field ? (size_t)(field - name) : strlen( name ))];
141 strlcpy( base, name, sizeof (base) );
145 if( ( p = strchr( base, '[' ) ) != NULL )
148 unsigned long l = strtoul( p, &end, 0 );
150 if( ( l > INT_MAX ) || strcmp( "]", end ) )
161 for( i = 0; i < s->i_field; i++ )
163 if( !strcmp( s->field[i]->name, base ) )
173 return mvar_GetVar( s->field[i], field );
185 const char *mvar_GetValue( mvar_t *v, const char *field )
193 mvar_t *f = mvar_GetVar( v, field );
205 void mvar_PushNewVar( mvar_t *vars, const char *name,
208 mvar_t *f = mvar_New( name, value );
209 mvar_PushVar( vars, f );
212 void mvar_AppendNewVar( mvar_t *vars, const char *name,
215 mvar_t *f = mvar_New( name, value );
216 mvar_AppendVar( vars, f );
220 /* arg= start[:stop[:step]],.. */
221 mvar_t *mvar_IntegerSetNew( const char *name, const char *arg )
223 char *dup = strdup( arg );
225 mvar_t *s = mvar_New( name, "set" );
230 int i_start,i_stop,i_step;
233 p = strchr( str, ',' );
240 i_match = sscanf( str, "%d:%d:%d", &i_start, &i_stop, &i_step );
247 else if( i_match == 2 )
249 i_step = i_start < i_stop ? 1 : -1;
256 if( ( i_start <= i_stop && i_step > 0 ) ||
257 ( i_start >= i_stop && i_step < 0 ) )
259 for( i = i_start; ; i += i_step )
263 if( ( i_step > 0 && i > i_stop ) ||
264 ( i_step < 0 && i < i_stop ) )
269 sprintf( value, "%d", i );
271 mvar_PushNewVar( s, name, value );
282 /********************************************************************
283 * Special sets handling
284 ********************************************************************/
286 mvar_t *mvar_PlaylistSetNew( intf_thread_t *p_intf, char *name,
289 mvar_t *s = mvar_New( name, "set" );
290 playlist_Lock( p_pl );
291 PlaylistListNode( p_intf, p_pl, p_pl->p_root_category , name, s, 0 );
292 playlist_Unlock( p_pl );
296 mvar_t *mvar_InfoSetNew( char *name, input_thread_t *p_input )
298 mvar_t *s = mvar_New( name, "set" );
301 if( p_input == NULL || p_input->p == NULL /* workarround assert in input_GetItem */ )
306 vlc_mutex_lock( &input_GetItem(p_input)->lock );
307 for ( i = 0; i < input_GetItem(p_input)->i_categories; i++ )
309 info_category_t *p_category = input_GetItem(p_input)->pp_categories[i];
311 mvar_t *cat = mvar_New( name, "set" );
312 mvar_t *iset = mvar_New( "info", "set" );
314 mvar_AppendNewVar( cat, "name", p_category->psz_name );
315 mvar_AppendVar( cat, iset );
317 for ( j = 0; j < p_category->i_infos; j++ )
319 info_t *p_info = p_category->pp_infos[j];
320 mvar_t *info = mvar_New( "info", "" );
322 /* msg_Dbg( p_input, "adding info name=%s value=%s",
323 psz_name, psz_value ); */
324 mvar_AppendNewVar( info, "name", p_info->psz_name );
325 mvar_AppendNewVar( info, "value", p_info->psz_value );
326 mvar_AppendVar( iset, info );
328 mvar_AppendVar( s, cat );
330 vlc_mutex_unlock( &input_GetItem(p_input)->lock );
335 mvar_t *mvar_ObjectSetNew( intf_thread_t *p_intf, char *psz_name,
336 const char *psz_capability )
338 mvar_t *s = mvar_New( psz_name, "set" );
341 module_t **p_list = module_list_get( NULL );
343 for( i = 0; p_list[i]; i++ )
345 module_t *p_parser = p_list[i];
346 if( module_provides( p_parser, psz_capability ) )
348 mvar_t *sd = mvar_New( "sd", module_get_object( p_parser ) );
349 mvar_AppendNewVar( sd, "name",
350 module_get_name( p_parser, true ) );
351 mvar_AppendVar( s, sd );
355 module_list_free( p_list );
360 mvar_t *mvar_InputVarSetNew( intf_thread_t *p_intf, char *name,
361 input_thread_t *p_input,
362 const char *psz_variable )
364 intf_sys_t *p_sys = p_intf->p_sys;
365 mvar_t *s = mvar_New( name, "set" );
366 vlc_value_t val, val_list, text_list;
369 if( p_input == NULL )
374 /* Check the type of the object variable */
375 i_type = var_Type( p_sys->p_input, psz_variable );
377 /* Make sure we want to display the variable */
378 if( i_type & VLC_VAR_HASCHOICE )
380 var_Change( p_sys->p_input, psz_variable, VLC_VAR_CHOICESCOUNT, &val, NULL );
381 if( val.i_int == 0 ) return s;
382 if( (i_type & VLC_VAR_TYPE) != VLC_VAR_VARIABLE && val.i_int == 1 )
390 switch( i_type & VLC_VAR_TYPE )
394 case VLC_VAR_VARIABLE:
396 case VLC_VAR_INTEGER:
399 /* Variable doesn't exist or isn't handled */
403 if( var_Get( p_sys->p_input, psz_variable, &val ) < 0 )
408 if( var_Change( p_sys->p_input, psz_variable, VLC_VAR_GETLIST,
409 &val_list, &text_list ) < 0 )
411 if( (i_type & VLC_VAR_TYPE) == VLC_VAR_STRING ) free( val.psz_string );
415 for( i = 0; i < val_list.p_list->i_count; i++ )
420 switch( i_type & VLC_VAR_TYPE )
423 itm = mvar_New( name, "set" );
424 mvar_AppendNewVar( itm, "name", text_list.p_list->p_values[i].psz_string );
425 mvar_AppendNewVar( itm, "id", val_list.p_list->p_values[i].psz_string );
426 snprintf( psz_int, sizeof(psz_int), "%d",
427 ( !strcmp( val.psz_string,
428 val_list.p_list->p_values[i].psz_string )
429 && !( i_type & VLC_VAR_ISCOMMAND ) ) );
430 mvar_AppendNewVar( itm, "selected", psz_int );
431 mvar_AppendVar( s, itm );
434 case VLC_VAR_INTEGER:
435 itm = mvar_New( name, "set" );
436 mvar_AppendNewVar( itm, "name", text_list.p_list->p_values[i].psz_string );
437 snprintf( psz_int, sizeof(psz_int), "%d",
438 val_list.p_list->p_values[i].i_int );
439 mvar_AppendNewVar( itm, "id", psz_int );
440 snprintf( psz_int, sizeof(psz_int), "%d",
441 ( val.i_int == val_list.p_list->p_values[i].i_int )
442 && !( i_type & VLC_VAR_ISCOMMAND ) );
443 mvar_AppendNewVar( itm, "selected", psz_int );
444 mvar_AppendVar( s, itm );
451 /* clean up everything */
452 if( (i_type & VLC_VAR_TYPE) == VLC_VAR_STRING ) free( val.psz_string );
453 var_FreeList( &val_list, &text_list );
458 mvar_t *mvar_HttpdInfoSetNew( char *name, httpd_t *p_httpd, int i_type )
460 mvar_t *s = mvar_New( name, "set" );
464 if( !p_httpd->pf_control( p_httpd, i_type, &info, NULL ) )
466 for( i= 0; i < info.i_count; )
470 inf = mvar_New( name, "set" );
473 /* fprintf( stderr," mvar_HttpdInfoSetNew: append name=`%s' value=`%s'\n",
474 info.info[i].psz_name, info.info[i].psz_value ); */
475 mvar_AppendNewVar( inf,
476 info.info[i].psz_name,
477 info.info[i].psz_value );
479 } while( i < info.i_count && strcmp( info.info[i].psz_name, "id" ) );
480 mvar_AppendVar( s, inf );
485 for( i = 0; i < info.i_count; i++ )
487 free( info.info[i].psz_name );
488 free( info.info[i].psz_value );
490 if( info.i_count > 0 )
499 mvar_t *mvar_FileSetNew( intf_thread_t *p_intf, char *name,
502 mvar_t *s = mvar_New( name, "set" );
503 char **ppsz_dir_content;
504 int i_dir_content, i;
505 psz_dir = RealPath( psz_dir );
507 /* parse psz_src dir */
508 if( ( i_dir_content = utf8_scandir( psz_dir, &ppsz_dir_content, Filter,
509 InsensitiveAlphasort ) ) == -1 )
511 if( errno != ENOENT && errno != ENOTDIR )
512 msg_Warn( p_intf, "error while scanning dir %s (%m)", psz_dir );
517 for( i = 0; i < i_dir_content; i++ )
519 #ifdef HAVE_SYS_STAT_H
520 struct stat stat_info;
522 char *psz_name = ppsz_dir_content[i], *psz_ext, *psz_dummy;
523 char psz_tmp[strlen( psz_dir ) + 1 + strlen( psz_name ) + 1];
527 if( psz_dir[0] == '\0' || (psz_dir[0] == '\\' && psz_dir[1] == '\0') )
529 strcpy( psz_tmp, psz_name );
534 sprintf( psz_tmp, "%s"DIR_SEP"%s", psz_dir, psz_name );
536 #ifdef HAVE_SYS_STAT_H
537 if( utf8_stat( psz_tmp, &stat_info ) == -1 )
544 f = mvar_New( name, "set" );
546 /* put lower-case file extension in 'ext' */
547 psz_ext = strrchr( psz_name, '.' );
548 psz_ext = strdup( psz_ext != NULL ? psz_ext + 1 : "" );
549 for( psz_dummy = psz_ext; *psz_dummy != '\0'; psz_dummy++ )
550 *psz_dummy = tolower( *psz_dummy );
552 mvar_AppendNewVar( f, "ext", psz_ext );
556 if( psz_dir[0] == '\0' || (psz_dir[0] == '\\' && psz_dir[1] == '\0') )
559 sprintf( psz_tmp, "%c:", psz_name[0] );
560 mvar_AppendNewVar( f, "name", psz_name );
561 mvar_AppendNewVar( f, "basename", psz_tmp );
562 mvar_AppendNewVar( f, "type", "directory" );
563 mvar_AppendNewVar( f, "size", "unknown" );
564 mvar_AppendNewVar( f, "date", "unknown" );
570 char psz_tmp[strlen( psz_dir ) + 1 + strlen( psz_name ) + 1];
572 sprintf( psz_tmp, "%s"DIR_SEP"%s", psz_dir, psz_name );
573 mvar_AppendNewVar( f, "name", psz_tmp );
574 mvar_AppendNewVar( f, "basename", psz_name );
576 #ifdef HAVE_SYS_STAT_H
577 if( S_ISDIR( stat_info.st_mode ) )
579 mvar_AppendNewVar( f, "type", "directory" );
581 else if( S_ISREG( stat_info.st_mode ) )
583 mvar_AppendNewVar( f, "type", "file" );
587 mvar_AppendNewVar( f, "type", "unknown" );
590 snprintf( psz_buf, sizeof( psz_buf ), "%"PRId64,
591 (int64_t)stat_info.st_size );
592 mvar_AppendNewVar( f, "size", psz_buf );
594 /* FIXME memory leak FIXME */
596 ctime_r( &stat_info.st_mtime, psz_buf );
597 mvar_AppendNewVar( f, "date", psz_buf );
599 mvar_AppendNewVar( f, "date", ctime( &stat_info.st_mtime ) );
603 mvar_AppendNewVar( f, "type", "unknown" );
604 mvar_AppendNewVar( f, "size", "unknown" );
605 mvar_AppendNewVar( f, "date", "unknown" );
609 mvar_AppendVar( s, f );
615 free( ppsz_dir_content );
619 static void mvar_VlmSetNewLoop( char *name, vlm_t *vlm, mvar_t *s,
620 vlm_message_t *el, bool b_name )
626 /* Add a node with name and info */
627 set = mvar_New( name, "set" );
630 mvar_AppendNewVar( set, "name", el->psz_name );
633 for( k = 0; k < el->i_child; k++ )
635 vlm_message_t *ch = el->child[k];
636 if( ch->i_child > 0 )
638 mvar_VlmSetNewLoop( ch->psz_name, vlm, set, ch, false );
644 mvar_AppendNewVar( set, ch->psz_name, ch->psz_value );
648 mvar_AppendNewVar( set, el->psz_name, ch->psz_name );
653 mvar_AppendVar( s, set );
656 mvar_t *mvar_VlmSetNew( char *name, vlm_t *vlm )
658 mvar_t *s = mvar_New( name, "set" );
663 if( vlm == NULL ) return s;
665 if( vlm_ExecuteCommand( vlm, "show", &msg ) )
668 for( i = 0; i < msg->i_child; i++ )
670 /* Over media, schedule */
671 vlm_message_t *ch = msg->child[i];
674 for( j = 0; j < ch->i_child; j++ )
677 vlm_message_t *el = ch->child[j];
678 vlm_message_t *inf, *desc;
679 char psz[6 + strlen(el->psz_name)];
681 sprintf( psz, "show %s", el->psz_name );
682 if( vlm_ExecuteCommand( vlm, psz, &inf ) )
684 desc = inf->child[0];
686 mvar_VlmSetNewLoop( el->psz_name, vlm, s, desc, true );
688 vlm_MessageDelete( inf );
691 vlm_MessageDelete( msg );
692 #endif /* ENABLE_VLM */