mvar.c
资源名称:vlc-1.0.5.zip [点击查看]
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上传日期:2020-07-06
资源大小:29949k
文件大小:18k
源码类别:
midi
开发平台:
Unix_Linux
- /*****************************************************************************
- * mvar.c : Variables handling for the HTTP Interface
- *****************************************************************************
- * Copyright (C) 2001-2007 the VideoLAN team
- * $Id: c25dd34d29cd6b2c9ae17b55d7003ffdcafd4a27 $
- *
- * Authors: Gildas Bazin <gbazin@netcourrier.com>
- * Laurent Aimar <fenrir@via.ecp.fr>
- * Christophe Massiot <massiot@via.ecp.fr>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
- *****************************************************************************/
- #ifdef HAVE_CONFIG_H
- # include "config.h"
- #endif
- #include "http.h"
- #include <limits.h>
- #include <assert.h>
- /* Utility function for scandir */
- static int Filter( const char *foo )
- {
- return strcmp( foo, "." );
- };
- static int InsensitiveAlphasort( const char **foo1,
- const char **foo2 )
- {
- return strcasecmp( *foo1, *foo2 );
- };
- mvar_t *mvar_New( const char *name, const char *value )
- {
- mvar_t *v = malloc( sizeof( mvar_t ) );
- if( !v ) return NULL;
- v->name = strdup( name );
- v->value = strdup( value ? value : "" );
- v->i_field = 0;
- v->field = malloc( sizeof( mvar_t * ) );
- v->field[0] = NULL;
- return v;
- }
- void mvar_Delete( mvar_t *v )
- {
- int i;
- free( v->name );
- free( v->value );
- for( i = 0; i < v->i_field; i++ )
- {
- mvar_Delete( v->field[i] );
- }
- free( v->field );
- free( v );
- }
- void mvar_AppendVar( mvar_t *v, mvar_t *f )
- {
- v->field = realloc( v->field, sizeof( mvar_t * ) * ( v->i_field + 2 ) );
- v->field[v->i_field] = f;
- v->i_field++;
- }
- mvar_t *mvar_Duplicate( const mvar_t *v )
- {
- int i;
- mvar_t *n;
- n = mvar_New( v->name, v->value );
- for( i = 0; i < v->i_field; i++ )
- {
- mvar_AppendVar( n, mvar_Duplicate( v->field[i] ) );
- }
- return n;
- }
- void mvar_PushVar( mvar_t *v, mvar_t *f )
- {
- v->field = realloc( v->field, sizeof( mvar_t * ) * ( v->i_field + 2 ) );
- if( v->i_field > 0 )
- {
- memmove( &v->field[1], &v->field[0], sizeof( mvar_t * ) * v->i_field );
- }
- v->field[0] = f;
- v->i_field++;
- }
- void mvar_RemoveVar( mvar_t *v, mvar_t *f )
- {
- int i;
- for( i = 0; i < v->i_field; i++ )
- {
- if( v->field[i] == f )
- {
- break;
- }
- }
- if( i >= v->i_field )
- {
- return;
- }
- if( i + 1 < v->i_field )
- {
- memmove( &v->field[i], &v->field[i+1], sizeof( mvar_t * ) * ( v->i_field - i - 1 ) );
- }
- v->i_field--;
- /* FIXME should do a realloc */
- }
- mvar_t *mvar_GetVar( mvar_t *s, const char *name )
- {
- /* format: name[index].field */
- const char *field = strchr( name, '.' );
- char base[1 + (field ? (size_t)(field - name) : strlen( name ))];
- char *p;
- int i_index, i;
- strlcpy( base, name, sizeof (base) );
- if( field != NULL )
- field++;
- if( ( p = strchr( base, '[' ) ) != NULL )
- {
- char *end;
- unsigned long l = strtoul( p, &end, 0 );
- if( ( l > INT_MAX ) || strcmp( "]", end ) )
- return NULL;
- *p++ = ' ';
- i_index = (int)l;
- }
- else
- {
- i_index = 0;
- }
- for( i = 0; i < s->i_field; i++ )
- {
- if( !strcmp( s->field[i]->name, base ) )
- {
- if( i_index > 0 )
- {
- i_index--;
- }
- else
- {
- if( field )
- {
- return mvar_GetVar( s->field[i], field );
- }
- else
- {
- return s->field[i];
- }
- }
- }
- }
- return NULL;
- }
- const char *mvar_GetValue( mvar_t *v, const char *field )
- {
- if( *field == ' ' )
- {
- return v->value;
- }
- else
- {
- mvar_t *f = mvar_GetVar( v, field );
- if( f )
- {
- return f->value;
- }
- else
- {
- return field;
- }
- }
- }
- void mvar_PushNewVar( mvar_t *vars, const char *name,
- const char *value )
- {
- mvar_t *f = mvar_New( name, value );
- mvar_PushVar( vars, f );
- }
- void mvar_AppendNewVar( mvar_t *vars, const char *name,
- const char *value )
- {
- mvar_t *f = mvar_New( name, value );
- mvar_AppendVar( vars, f );
- }
- /* arg= start[:stop[:step]],.. */
- mvar_t *mvar_IntegerSetNew( const char *name, const char *arg )
- {
- char *dup = strdup( arg );
- char *str = dup;
- mvar_t *s = mvar_New( name, "set" );
- while( str )
- {
- char *p;
- int i_start,i_stop,i_step;
- int i_match;
- p = strchr( str, ',' );
- if( p )
- {
- *p++ = ' ';
- }
- i_step = 0;
- i_match = sscanf( str, "%d:%d:%d", &i_start, &i_stop, &i_step );
- if( i_match == 1 )
- {
- i_stop = i_start;
- i_step = 1;
- }
- else if( i_match == 2 )
- {
- i_step = i_start < i_stop ? 1 : -1;
- }
- if( i_match >= 1 )
- {
- int i;
- if( ( i_start <= i_stop && i_step > 0 ) ||
- ( i_start >= i_stop && i_step < 0 ) )
- {
- for( i = i_start; ; i += i_step )
- {
- char value[79];
- if( ( i_step > 0 && i > i_stop ) ||
- ( i_step < 0 && i < i_stop ) )
- {
- break;
- }
- sprintf( value, "%d", i );
- mvar_PushNewVar( s, name, value );
- }
- }
- }
- str = p;
- }
- free( dup );
- return s;
- }
- /********************************************************************
- * Special sets handling
- ********************************************************************/
- mvar_t *mvar_PlaylistSetNew( intf_thread_t *p_intf, char *name,
- playlist_t *p_pl )
- {
- mvar_t *s = mvar_New( name, "set" );
- playlist_Lock( p_pl );
- PlaylistListNode( p_intf, p_pl, p_pl->p_root_category , name, s, 0 );
- playlist_Unlock( p_pl );
- return s;
- }
- mvar_t *mvar_InfoSetNew( char *name, input_thread_t *p_input )
- {
- mvar_t *s = mvar_New( name, "set" );
- int i, j;
- if( p_input == NULL || p_input->p == NULL /* workarround assert in input_GetItem */ )
- {
- return s;
- }
- vlc_mutex_lock( &input_GetItem(p_input)->lock );
- for ( i = 0; i < input_GetItem(p_input)->i_categories; i++ )
- {
- info_category_t *p_category = input_GetItem(p_input)->pp_categories[i];
- mvar_t *cat = mvar_New( name, "set" );
- mvar_t *iset = mvar_New( "info", "set" );
- mvar_AppendNewVar( cat, "name", p_category->psz_name );
- mvar_AppendVar( cat, iset );
- for ( j = 0; j < p_category->i_infos; j++ )
- {
- info_t *p_info = p_category->pp_infos[j];
- mvar_t *info = mvar_New( "info", "" );
- /* msg_Dbg( p_input, "adding info name=%s value=%s",
- psz_name, psz_value ); */
- mvar_AppendNewVar( info, "name", p_info->psz_name );
- mvar_AppendNewVar( info, "value", p_info->psz_value );
- mvar_AppendVar( iset, info );
- }
- mvar_AppendVar( s, cat );
- }
- vlc_mutex_unlock( &input_GetItem(p_input)->lock );
- return s;
- }
- mvar_t *mvar_ObjectSetNew( intf_thread_t *p_intf, char *psz_name,
- const char *psz_capability )
- {
- mvar_t *s = mvar_New( psz_name, "set" );
- size_t i;
- module_t **p_list = module_list_get( NULL );
- for( i = 0; p_list[i]; i++ )
- {
- module_t *p_parser = p_list[i];
- if( module_provides( p_parser, psz_capability ) )
- {
- mvar_t *sd = mvar_New( "sd", module_get_object( p_parser ) );
- mvar_AppendNewVar( sd, "name",
- module_get_name( p_parser, true ) );
- mvar_AppendVar( s, sd );
- }
- }
- module_list_free( p_list );
- return s;
- }
- mvar_t *mvar_InputVarSetNew( intf_thread_t *p_intf, char *name,
- input_thread_t *p_input,
- const char *psz_variable )
- {
- intf_sys_t *p_sys = p_intf->p_sys;
- mvar_t *s = mvar_New( name, "set" );
- vlc_value_t val, val_list, text_list;
- int i_type, i;
- if( p_input == NULL )
- {
- return s;
- }
- /* Check the type of the object variable */
- i_type = var_Type( p_sys->p_input, psz_variable );
- /* Make sure we want to display the variable */
- if( i_type & VLC_VAR_HASCHOICE )
- {
- var_Change( p_sys->p_input, psz_variable, VLC_VAR_CHOICESCOUNT, &val, NULL );
- if( val.i_int == 0 ) return s;
- if( (i_type & VLC_VAR_TYPE) != VLC_VAR_VARIABLE && val.i_int == 1 )
- return s;
- }
- else
- {
- return s;
- }
- switch( i_type & VLC_VAR_TYPE )
- {
- case VLC_VAR_VOID:
- case VLC_VAR_BOOL:
- case VLC_VAR_VARIABLE:
- case VLC_VAR_STRING:
- case VLC_VAR_INTEGER:
- break;
- default:
- /* Variable doesn't exist or isn't handled */
- return s;
- }
- if( var_Get( p_sys->p_input, psz_variable, &val ) < 0 )
- {
- return s;
- }
- if( var_Change( p_sys->p_input, psz_variable, VLC_VAR_GETLIST,
- &val_list, &text_list ) < 0 )
- {
- if( (i_type & VLC_VAR_TYPE) == VLC_VAR_STRING ) free( val.psz_string );
- return s;
- }
- for( i = 0; i < val_list.p_list->i_count; i++ )
- {
- char psz_int[16];
- mvar_t *itm;
- switch( i_type & VLC_VAR_TYPE )
- {
- case VLC_VAR_STRING:
- itm = mvar_New( name, "set" );
- mvar_AppendNewVar( itm, "name", text_list.p_list->p_values[i].psz_string );
- mvar_AppendNewVar( itm, "id", val_list.p_list->p_values[i].psz_string );
- snprintf( psz_int, sizeof(psz_int), "%d",
- ( !strcmp( val.psz_string,
- val_list.p_list->p_values[i].psz_string )
- && !( i_type & VLC_VAR_ISCOMMAND ) ) );
- mvar_AppendNewVar( itm, "selected", psz_int );
- mvar_AppendVar( s, itm );
- break;
- case VLC_VAR_INTEGER:
- itm = mvar_New( name, "set" );
- mvar_AppendNewVar( itm, "name", text_list.p_list->p_values[i].psz_string );
- snprintf( psz_int, sizeof(psz_int), "%d",
- val_list.p_list->p_values[i].i_int );
- mvar_AppendNewVar( itm, "id", psz_int );
- snprintf( psz_int, sizeof(psz_int), "%d",
- ( val.i_int == val_list.p_list->p_values[i].i_int )
- && !( i_type & VLC_VAR_ISCOMMAND ) );
- mvar_AppendNewVar( itm, "selected", psz_int );
- mvar_AppendVar( s, itm );
- break;
- default:
- break;
- }
- }
- /* clean up everything */
- if( (i_type & VLC_VAR_TYPE) == VLC_VAR_STRING ) free( val.psz_string );
- var_Change( p_sys->p_input, psz_variable, VLC_VAR_FREELIST, &val_list,
- &text_list );
- return s;
- }
- #if 0
- mvar_t *mvar_HttpdInfoSetNew( char *name, httpd_t *p_httpd, int i_type )
- {
- mvar_t *s = mvar_New( name, "set" );
- httpd_info_t info;
- int i;
- if( !p_httpd->pf_control( p_httpd, i_type, &info, NULL ) )
- {
- for( i= 0; i < info.i_count; )
- {
- mvar_t *inf;
- inf = mvar_New( name, "set" );
- do
- {
- /* fprintf( stderr," mvar_HttpdInfoSetNew: append name=`%s' value=`%s'n",
- info.info[i].psz_name, info.info[i].psz_value ); */
- mvar_AppendNewVar( inf,
- info.info[i].psz_name,
- info.info[i].psz_value );
- i++;
- } while( i < info.i_count && strcmp( info.info[i].psz_name, "id" ) );
- mvar_AppendVar( s, inf );
- }
- }
- /* free mem */
- for( i = 0; i < info.i_count; i++ )
- {
- free( info.info[i].psz_name );
- free( info.info[i].psz_value );
- }
- if( info.i_count > 0 )
- {
- free( info.info );
- }
- return s;
- }
- #endif
- mvar_t *mvar_FileSetNew( intf_thread_t *p_intf, char *name,
- char *psz_dir )
- {
- mvar_t *s = mvar_New( name, "set" );
- char **ppsz_dir_content;
- int i_dir_content, i;
- psz_dir = RealPath( psz_dir );
- /* parse psz_src dir */
- if( ( i_dir_content = utf8_scandir( psz_dir, &ppsz_dir_content, Filter,
- InsensitiveAlphasort ) ) == -1 )
- {
- if( errno != ENOENT && errno != ENOTDIR )
- msg_Warn( p_intf, "error while scanning dir %s (%m)", psz_dir );
- free( psz_dir );
- return s;
- }
- for( i = 0; i < i_dir_content; i++ )
- {
- #ifdef HAVE_SYS_STAT_H
- struct stat stat_info;
- #endif
- char *psz_name = ppsz_dir_content[i], *psz_ext, *psz_dummy;
- char psz_tmp[strlen( psz_dir ) + 1 + strlen( psz_name ) + 1];
- mvar_t *f;
- #if defined( WIN32 )
- if( psz_dir[0] == ' ' || (psz_dir[0] == '\' && psz_dir[1] == ' ') )
- {
- strcpy( psz_tmp, psz_name );
- }
- else
- #endif
- {
- sprintf( psz_tmp, "%s"DIR_SEP"%s", psz_dir, psz_name );
- #ifdef HAVE_SYS_STAT_H
- if( utf8_stat( psz_tmp, &stat_info ) == -1 )
- {
- free( psz_name );
- continue;
- }
- #endif
- }
- f = mvar_New( name, "set" );
- /* put lower-case file extension in 'ext' */
- psz_ext = strrchr( psz_name, '.' );
- psz_ext = strdup( psz_ext != NULL ? psz_ext + 1 : "" );
- for( psz_dummy = psz_ext; *psz_dummy != ' '; psz_dummy++ )
- *psz_dummy = tolower( *psz_dummy );
- mvar_AppendNewVar( f, "ext", psz_ext );
- free( psz_ext );
- #if defined( WIN32 )
- if( psz_dir[0] == ' ' || (psz_dir[0] == '\' && psz_dir[1] == ' ') )
- {
- char psz_tmp[3];
- sprintf( psz_tmp, "%c:", psz_name[0] );
- mvar_AppendNewVar( f, "name", psz_name );
- mvar_AppendNewVar( f, "basename", psz_tmp );
- mvar_AppendNewVar( f, "type", "directory" );
- mvar_AppendNewVar( f, "size", "unknown" );
- mvar_AppendNewVar( f, "date", "unknown" );
- }
- else
- #endif
- {
- char psz_buf[26];
- char psz_tmp[strlen( psz_dir ) + 1 + strlen( psz_name ) + 1];
- sprintf( psz_tmp, "%s"DIR_SEP"%s", psz_dir, psz_name );
- mvar_AppendNewVar( f, "name", psz_tmp );
- mvar_AppendNewVar( f, "basename", psz_name );
- #ifdef HAVE_SYS_STAT_H
- if( S_ISDIR( stat_info.st_mode ) )
- {
- mvar_AppendNewVar( f, "type", "directory" );
- }
- else if( S_ISREG( stat_info.st_mode ) )
- {
- mvar_AppendNewVar( f, "type", "file" );
- }
- else
- {
- mvar_AppendNewVar( f, "type", "unknown" );
- }
- snprintf( psz_buf, sizeof( psz_buf ), "%"PRId64,
- (int64_t)stat_info.st_size );
- mvar_AppendNewVar( f, "size", psz_buf );
- /* FIXME memory leak FIXME */
- # ifdef HAVE_CTIME_R
- ctime_r( &stat_info.st_mtime, psz_buf );
- mvar_AppendNewVar( f, "date", psz_buf );
- # else
- mvar_AppendNewVar( f, "date", ctime( &stat_info.st_mtime ) );
- # endif
- #else
- mvar_AppendNewVar( f, "type", "unknown" );
- mvar_AppendNewVar( f, "size", "unknown" );
- mvar_AppendNewVar( f, "date", "unknown" );
- #endif
- }
- mvar_AppendVar( s, f );
- free( psz_name );
- }
- free( psz_dir );
- free( ppsz_dir_content );
- return s;
- }
- static void mvar_VlmSetNewLoop( char *name, vlm_t *vlm, mvar_t *s,
- vlm_message_t *el, bool b_name )
- {
- /* Over name */
- mvar_t *set;
- int k;
- /* Add a node with name and info */
- set = mvar_New( name, "set" );
- if( b_name == true )
- {
- mvar_AppendNewVar( set, "name", el->psz_name );
- }
- for( k = 0; k < el->i_child; k++ )
- {
- vlm_message_t *ch = el->child[k];
- if( ch->i_child > 0 )
- {
- mvar_VlmSetNewLoop( ch->psz_name, vlm, set, ch, false );
- }
- else
- {
- if( ch->psz_value )
- {
- mvar_AppendNewVar( set, ch->psz_name, ch->psz_value );
- }
- else
- {
- mvar_AppendNewVar( set, el->psz_name, ch->psz_name );
- }
- }
- }
- mvar_AppendVar( s, set );
- }
- mvar_t *mvar_VlmSetNew( char *name, vlm_t *vlm )
- {
- mvar_t *s = mvar_New( name, "set" );
- #ifdef ENABLE_VLM
- vlm_message_t *msg;
- int i;
- if( vlm == NULL ) return s;
- if( vlm_ExecuteCommand( vlm, "show", &msg ) )
- return s;
- for( i = 0; i < msg->i_child; i++ )
- {
- /* Over media, schedule */
- vlm_message_t *ch = msg->child[i];
- int j;
- for( j = 0; j < ch->i_child; j++ )
- {
- /* Over name */
- vlm_message_t *el = ch->child[j];
- vlm_message_t *inf, *desc;
- char psz[6 + strlen(el->psz_name)];
- sprintf( psz, "show %s", el->psz_name );
- if( vlm_ExecuteCommand( vlm, psz, &inf ) )
- continue;
- desc = inf->child[0];
- mvar_VlmSetNewLoop( el->psz_name, vlm, s, desc, true );
- vlm_MessageDelete( inf );
- }
- }
- vlm_MessageDelete( msg );
- #endif /* ENABLE_VLM */
- return s;
- }