1 /*****************************************************************************
2 * intf.c: Generic lua interface functions
3 *****************************************************************************
4 * Copyright (C) 2007-2008 the VideoLAN team
7 * Authors: Antoine Cellerier <dionoea at videolan tod org>
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
22 *****************************************************************************/
24 /*****************************************************************************
26 *****************************************************************************/
35 #include <vlc_common.h>
36 #include <vlc_interface.h>
37 #include <sys/types.h>
41 #include <lua.h> /* Low level lua C API */
42 #include <lauxlib.h> /* Higher level C API */
43 #include <lualib.h> /* Lua libs */
48 /*****************************************************************************
50 *****************************************************************************/
51 static void *Run( void * );
53 static const char * const ppsz_intf_options[] = { "intf", "config", NULL };
55 /*****************************************************************************
57 *****************************************************************************/
58 static inline void luaL_register_submodule( lua_State *L, const char *psz_name,
62 luaL_register( L, NULL, l );
63 lua_setfield( L, -2, psz_name );
66 static char *StripPasswords( const char *psz_config )
69 const char *p = psz_config;
70 while ((p = strstr(p, "password=")) != NULL)
76 return strdup(psz_config);
78 char *psz_log = malloc(strlen(psz_config) + n * strlen("******") + 1);
83 for (p = psz_config; ; )
85 const char *pwd = strstr(p, "password=");
88 /* Copy the last, ending bit */
92 pwd += strlen("password=");
95 if (*pwd == '\'' || *pwd == '"')
101 strncat(psz_log, p, pwd - p);
102 strcat(psz_log, "******");
104 /* Advance to the delimiter at the end of the password */
108 p = strpbrk(p + 1, delim);
110 /* Oops, unbalanced quotes or brackets */
113 while (*(p - 1) == '\\');
118 static const luaL_Reg p_reg[] = { { NULL, NULL } };
120 static int Start_LuaIntf( vlc_object_t *p_this, const char *name )
122 intf_thread_t *p_intf = (intf_thread_t*)p_this;
126 assert( name != NULL );
127 config_ChainParse( p_intf, "lua-", ppsz_intf_options, p_intf->p_cfg );
130 bool b_config_set = false;
132 p_intf->p_sys = (intf_sys_t*)malloc( sizeof(intf_sys_t) );
135 p_sys = p_intf->p_sys;
136 p_sys->psz_filename = vlclua_find_file( p_this, "intf", name );
137 if( !p_sys->psz_filename )
139 msg_Err( p_intf, "Couldn't find lua interface script \"%s\".",
143 msg_Dbg( p_intf, "Found lua interface script: %s", p_sys->psz_filename );
148 msg_Err( p_intf, "Could not create new Lua State" );
152 vlclua_set_this( L, p_intf );
153 vlclua_set_intf( L, p_sys );
157 /* register our functions */
158 luaL_register( L, "vlc", p_reg );
160 /* register submodules */
171 luaopen_playlist( L );
174 luaopen_strings( L );
175 luaopen_variables( L );
179 luaopen_gettext( L );
181 luaopen_equalizer( L );
186 /* Setup the module search path */
187 if( vlclua_add_modules_path( p_intf, L, p_sys->psz_filename ) )
189 msg_Warn( p_intf, "Error while setting the module search path for %s",
190 p_sys->psz_filename );
196 * Get the lua-config string.
197 * If the string is empty, try with the old http-* or telnet-* options
198 * and build the right configuration line
200 psz_config = var_CreateGetNonEmptyString( p_intf, "lua-config" );
203 if( !strcmp( name, "http" ) )
205 char *psz_http_src = var_CreateGetNonEmptyString( p_intf, "http-src" );
206 bool b_http_index = var_CreateGetBool( p_intf, "http-index" );
209 char *psz_esc = config_StringEscape( psz_http_src );
213 asprintf( &psz_tmp, "%s,dir='%s'", psz_config, psz_esc );
215 psz_config = psz_tmp;
218 asprintf( &psz_config, "http={dir='%s'", psz_esc );
220 free( psz_http_src );
225 asprintf( &psz_tmp, "%s,no_index=%s}", psz_config, b_http_index ? "true" : "false" );
227 psz_config = psz_tmp;
230 asprintf( &psz_config, "http={no_index=%s}", b_http_index ? "true" : "false" );
232 else if( !strcmp( name, "telnet" ) )
234 char *psz_telnet_host = var_CreateGetString( p_intf, "telnet-host" );
235 if( !strcmp( psz_telnet_host, "*console" ) )
240 vlc_UrlParse( &url, psz_telnet_host, 0 );
241 int i_telnet_port = var_CreateGetInteger( p_intf, "telnet-port" );
242 if ( url.i_port != 0 )
244 if ( i_telnet_port == TELNETPORT_DEFAULT )
245 i_telnet_port = url.i_port;
246 else if ( url.i_port != i_telnet_port )
247 msg_Warn( p_intf, "ignoring port %d (using %d)", url.i_port, i_telnet_port );
250 char *psz_esc_host = config_StringEscape( url.psz_host );
251 free( psz_telnet_host );
252 vlc_UrlClean( &url );
254 asprintf( &psz_telnet_host, "telnet://%s:%d", psz_esc_host ? psz_esc_host : "", i_telnet_port );
255 free( psz_esc_host );
258 char *psz_telnet_passwd = var_CreateGetString( p_intf, "telnet-password" );
260 char *psz_esc_passwd = config_StringEscape( psz_telnet_passwd );
262 asprintf( &psz_config, "telnet={host='%s',password='%s'}", psz_telnet_host, psz_esc_passwd );
264 free( psz_esc_passwd );
265 free( psz_telnet_passwd );
266 free( psz_telnet_host );
268 else if( !strcmp( name, "cli" ) )
270 char *psz_rc_host = var_CreateGetNonEmptyString( p_intf, "rc-host" );
272 psz_rc_host = var_CreateGetNonEmptyString( p_intf, "cli-host" );
275 char *psz_esc_host = config_StringEscape( psz_rc_host );
276 asprintf( &psz_config, "cli={host='%s'}", psz_esc_host );
278 free( psz_esc_host );
287 if( asprintf( &psz_buffer, "config={%s}", psz_config ) != -1 )
289 char *psz_log = StripPasswords( psz_buffer );
290 if( psz_log != NULL )
292 msg_Dbg( p_intf, "Setting config variable: %s", psz_log );
296 if( luaL_dostring( L, psz_buffer ) == 1 )
297 msg_Err( p_intf, "Error while parsing \"lua-config\"." );
299 lua_getglobal( L, "config" );
300 if( lua_istable( L, -1 ) )
302 if( !strcmp( name, "cli" ) )
304 lua_getfield( L, -1, "rc" );
305 if( lua_istable( L, -1 ) )
307 /* msg_Warn( p_intf, "The `rc' lua interface script "
308 "was renamed `cli', please update "
309 "your configuration!" ); */
310 lua_setfield( L, -2, "cli" );
315 lua_getfield( L, -1, name );
316 if( lua_istable( L, -1 ) )
318 lua_setglobal( L, "config" );
329 lua_setglobal( L, "config" );
332 /* Wrapper for legacy telnet config */
333 if ( !strcmp( name, "telnet" ) )
335 /* msg_Warn( p_intf, "The `telnet' lua interface script was replaced "
336 "by `cli', please update your configuration!" ); */
338 char *wrapped_file = vlclua_find_file( p_this, "intf", "cli" );
341 msg_Err( p_intf, "Couldn't find lua interface script \"cli\", "
342 "needed by telnet wrapper" );
343 lua_close( p_sys->L );
346 lua_pushstring( L, wrapped_file );
347 lua_setglobal( L, "wrapped_file" );
348 free( wrapped_file );
353 /* Cleaned up by vlc_object_release() */
354 p_intf->psz_header = strdup( name );
356 vlc_mutex_init( &p_sys->lock );
357 vlc_cond_init( &p_sys->wait );
358 p_sys->exiting = false;
360 if( vlc_clone( &p_sys->thread, Run, p_intf, VLC_THREAD_PRIORITY_LOW ) )
362 free( p_intf->psz_header );
363 p_intf->psz_header = NULL;
364 vlc_cond_destroy( &p_sys->wait );
365 vlc_mutex_destroy( &p_sys->lock );
366 lua_close( p_sys->L );
372 free( p_sys->psz_filename );
377 void Close_LuaIntf( vlc_object_t *p_this )
379 intf_thread_t *p_intf = (intf_thread_t*)p_this;
380 intf_sys_t *p_sys = p_intf->p_sys;
382 vlc_cancel( p_sys->thread );
384 vlc_mutex_lock( &p_sys->lock );
385 p_sys->exiting = true;
386 vlc_cond_signal( &p_sys->wait );
387 vlc_mutex_unlock( &p_sys->lock );
388 vlc_join( p_sys->thread, NULL );
389 vlc_cond_destroy( &p_sys->wait );
390 vlc_mutex_destroy( &p_sys->lock );
392 lua_close( p_sys->L );
394 free( p_sys->psz_filename );
398 static void *Run( void *data )
400 intf_thread_t *p_intf = data;
401 intf_sys_t *p_sys = p_intf->p_sys;
402 lua_State *L = p_sys->L;
404 if( luaL_dofile( L, p_sys->psz_filename ) )
406 msg_Err( p_intf, "Error loading script %s: %s", p_sys->psz_filename,
407 lua_tostring( L, lua_gettop( L ) ) );
413 int Open_LuaIntf( vlc_object_t *p_this )
415 char *name = var_InheritString( p_this, "lua-intf" );
416 if( unlikely(name == NULL) )
419 int ret = Start_LuaIntf( p_this, name );
424 int Open_LuaHTTP( vlc_object_t *p_this )
426 return Start_LuaIntf( p_this, "http" );
429 int Open_LuaCLI( vlc_object_t *p_this )
431 return Start_LuaIntf( p_this, "cli" );
434 int Open_LuaTelnet( vlc_object_t *p_this )
436 return Start_LuaIntf( p_this, "telnet" );