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 *****************************************************************************/
31 #include <sys/types.h>
34 #include <vlc_common.h>
35 #include <vlc_interface.h>
41 /*****************************************************************************
43 *****************************************************************************/
44 static void *Run( void * );
46 static const char * const ppsz_intf_options[] = { "intf", "config", NULL };
48 /*****************************************************************************
50 *****************************************************************************/
51 static inline void luaL_register_submodule( lua_State *L, const char *psz_name,
55 luaL_register( L, NULL, l );
56 lua_setfield( L, -2, psz_name );
59 static char *MakeConfig( intf_thread_t *p_intf, const char *name )
61 char *psz_config = NULL;
63 if( !strcmp( name, "http" ) )
65 char *psz_http_src = var_InheritString( p_intf, "http-src" );
66 bool b_http_index = var_InheritBool( p_intf, "http-index" );
69 char *psz_esc = config_StringEscape( psz_http_src );
71 if( asprintf( &psz_config, "http={dir='%s',no_index=%s}", psz_esc,
72 b_http_index ? "true" : "false" ) == -1 )
79 if( asprintf( &psz_config, "http={no_index=%s}",
80 b_http_index ? "true" : "false" ) == -1 )
84 else if( !strcmp( name, "telnet" ) )
86 char *psz_host = var_InheritString( p_intf, "telnet-host" );
87 if( !strcmp( psz_host, "*console" ) )
92 vlc_UrlParse( &url, psz_host, 0 );
93 unsigned i_port = var_InheritInteger( p_intf, "telnet-port" );
94 if ( url.i_port != 0 )
96 if ( i_port == TELNETPORT_DEFAULT )
98 else if ( url.i_port != i_port )
99 msg_Warn( p_intf, "ignoring port %d (using %d)",
100 url.i_port, i_port );
103 char *psz_esc_host = config_StringEscape( url.psz_host );
105 vlc_UrlClean( &url );
107 if( asprintf( &psz_host, "telnet://%s:%d",
108 psz_esc_host ? psz_esc_host : "", i_port ) == -1 )
110 free( psz_esc_host );
113 char *psz_passwd = var_InheritString( p_intf, "telnet-password" );
115 char *psz_esc_passwd = config_StringEscape( psz_passwd );
117 if( asprintf( &psz_config, "telnet={host='%s',password='%s'}",
118 psz_host, psz_esc_passwd ) == -1 )
121 free( psz_esc_passwd );
125 else if( !strcmp( name, "cli" ) )
127 char *psz_rc_host = var_InheritString( p_intf, "rc-host" );
129 psz_rc_host = var_InheritString( p_intf, "cli-host" );
132 char *psz_esc_host = config_StringEscape( psz_rc_host );
134 if( asprintf( &psz_config, "cli={host='%s'}", psz_esc_host ) == -1 )
136 free( psz_esc_host );
144 static char *StripPasswords( const char *psz_config )
147 const char *p = psz_config;
148 while ((p = strstr(p, "password=")) != NULL)
154 return strdup(psz_config);
156 char *psz_log = malloc(strlen(psz_config) + n * strlen("******") + 1);
161 for (p = psz_config; ; )
163 const char *pwd = strstr(p, "password=");
166 /* Copy the last, ending bit */
170 pwd += strlen("password=");
172 char delim[3] = ",}";
173 if (*pwd == '\'' || *pwd == '"')
179 strncat(psz_log, p, pwd - p);
180 strcat(psz_log, "******");
182 /* Advance to the delimiter at the end of the password */
186 p = strpbrk(p + 1, delim);
188 /* Oops, unbalanced quotes or brackets */
191 while (*(p - 1) == '\\');
196 static const luaL_Reg p_reg[] = { { NULL, NULL } };
198 static int Start_LuaIntf( vlc_object_t *p_this, const char *name )
200 intf_thread_t *p_intf = (intf_thread_t*)p_this;
204 config_ChainParse( p_intf, "lua-", ppsz_intf_options, p_intf->p_cfg );
208 char *n = var_InheritString( p_this, "lua-intf" );
209 if( unlikely(n == NULL) )
211 name = p_intf->psz_header = n;
214 /* Cleaned up by vlc_object_release() */
215 p_intf->psz_header = strdup( name );
217 p_intf->p_sys = (intf_sys_t*)malloc( sizeof(intf_sys_t) );
220 free( p_intf->psz_header );
221 p_intf->psz_header = NULL;
224 p_sys = p_intf->p_sys;
225 p_sys->psz_filename = vlclua_find_file( "intf", name );
226 if( !p_sys->psz_filename )
228 msg_Err( p_intf, "Couldn't find lua interface script \"%s\".",
232 msg_Dbg( p_intf, "Found lua interface script: %s", p_sys->psz_filename );
237 msg_Err( p_intf, "Could not create new Lua State" );
241 vlclua_set_this( L, p_intf );
245 /* register our functions */
246 luaL_register( L, "vlc", p_reg );
248 /* register submodules */
258 luaopen_playlist( L );
261 luaopen_strings( L );
262 luaopen_variables( L );
266 luaopen_gettext( L );
268 luaopen_equalizer( L );
269 #if defined(_WIN32) && !VLC_WINSTORE_APP
276 /* Setup the module search path */
277 if( vlclua_add_modules_path( L, p_sys->psz_filename ) )
279 msg_Warn( p_intf, "Error while setting the module search path for %s",
280 p_sys->psz_filename );
286 * Get the lua-config string.
287 * If the string is empty, try with the old http-* or telnet-* options
288 * and build the right configuration line
290 bool b_config_set = false;
291 char *psz_config = var_InheritString( p_intf, "lua-config" );
293 psz_config = MakeConfig( p_intf, name );
298 if( asprintf( &psz_buffer, "config={%s}", psz_config ) != -1 )
300 char *psz_log = StripPasswords( psz_buffer );
301 if( psz_log != NULL )
303 msg_Dbg( p_intf, "Setting config variable: %s", psz_log );
307 if( luaL_dostring( L, psz_buffer ) == 1 )
308 msg_Err( p_intf, "Error while parsing \"lua-config\"." );
310 lua_getglobal( L, "config" );
311 if( lua_istable( L, -1 ) )
313 if( !strcmp( name, "cli" ) )
315 lua_getfield( L, -1, "rc" );
316 if( lua_istable( L, -1 ) )
318 /* msg_Warn( p_intf, "The `rc' lua interface script "
319 "was renamed `cli', please update "
320 "your configuration!" ); */
321 lua_setfield( L, -2, "cli" );
326 lua_getfield( L, -1, name );
327 if( lua_istable( L, -1 ) )
329 lua_setglobal( L, "config" );
340 lua_setglobal( L, "config" );
343 /* Wrapper for legacy telnet config */
344 if ( !strcmp( name, "telnet" ) )
346 /* msg_Warn( p_intf, "The `telnet' lua interface script was replaced "
347 "by `cli', please update your configuration!" ); */
349 char *wrapped_file = vlclua_find_file( "intf", "cli" );
352 msg_Err( p_intf, "Couldn't find lua interface script \"cli\", "
353 "needed by telnet wrapper" );
354 lua_close( p_sys->L );
357 lua_pushstring( L, wrapped_file );
358 lua_setglobal( L, "wrapped_file" );
359 free( wrapped_file );
364 if( vlc_pipe( p_sys->fd ) )
366 lua_close( p_sys->L );
370 if( vlc_clone( &p_sys->thread, Run, p_intf, VLC_THREAD_PRIORITY_LOW ) )
372 close( p_sys->fd[1] );
373 close( p_sys->fd[0] );
374 lua_close( p_sys->L );
380 free( p_sys->psz_filename );
382 free( p_intf->psz_header );
383 p_intf->psz_header = NULL;
387 void Close_LuaIntf( vlc_object_t *p_this )
389 intf_thread_t *p_intf = (intf_thread_t*)p_this;
390 intf_sys_t *p_sys = p_intf->p_sys;
392 close( p_sys->fd[1] );
393 vlc_join( p_sys->thread, NULL );
395 lua_close( p_sys->L );
396 close( p_sys->fd[0] );
397 free( p_sys->psz_filename );
401 static void *Run( void *data )
403 intf_thread_t *p_intf = data;
404 intf_sys_t *p_sys = p_intf->p_sys;
405 lua_State *L = p_sys->L;
407 if( luaL_dofile( L, p_sys->psz_filename ) )
409 msg_Err( p_intf, "Error loading script %s: %s", p_sys->psz_filename,
410 lua_tostring( L, lua_gettop( L ) ) );
416 int Open_LuaIntf( vlc_object_t *p_this )
418 return Start_LuaIntf( p_this, NULL );
421 int Open_LuaHTTP( vlc_object_t *p_this )
423 return Start_LuaIntf( p_this, "http" );
426 int Open_LuaCLI( vlc_object_t *p_this )
428 return Start_LuaIntf( p_this, "cli" );
431 int Open_LuaTelnet( vlc_object_t *p_this )
433 char *pw = var_CreateGetNonEmptyString( p_this, "telnet-password" );
436 msg_Err( p_this, "password not configured" );
437 msg_Info( p_this, "Please specify the password in the preferences." );
441 return Start_LuaIntf( p_this, "telnet" );