static lua_State * init( vlc_object_t *p_this, input_item_t * p_item, const char *psz_filename )
{
lua_State * L = luaL_newstate();
if( !L )
{
msg_Err( p_this, "Could not create new Lua State" );
return NULL;
}
vlclua_set_this( L, p_this );
/* Load Lua libraries */
luaL_openlibs( L ); /* XXX: Don't open all the libs? */
luaL_register_namespace( L, "vlc", p_reg );
luaopen_msg( L );
luaopen_stream( L );
luaopen_strings( L );
luaopen_variables( L );
luaopen_object( L );
luaopen_xml( L );
luaopen_input_item( L, p_item );
if( vlclua_add_modules_path( L, psz_filename ) )
{
msg_Warn( p_this, "Error while setting the module search path for %s",
psz_filename );
lua_close( L );
return NULL;
}
return L;
}
static int Demux( demux_t *p_demux )
{
lua_State *L = p_demux->p_sys->L;
char *psz_filename = p_demux->p_sys->psz_filename;
input_item_t *p_current_input = input_GetItem( p_demux->p_input );
luaL_register_namespace( L, "vlc", p_reg_parse );
lua_getglobal( L, "parse" );
if( !lua_isfunction( L, -1 ) )
{
msg_Warn( p_demux, "Error while running script %s, "
"function parse() not found", psz_filename );
return VLC_EGENERIC;
}
if( lua_pcall( L, 0, 1, 0 ) )
{
msg_Warn( p_demux, "Error while running script %s, "
"function parse(): %s", psz_filename,
lua_tostring( L, lua_gettop( L ) ) );
return VLC_EGENERIC;
}
if( lua_gettop( L ) )
vlclua_playlist_add_internal( p_demux, L, NULL, p_current_input, 0 );
else
msg_Err( p_demux, "Script went completely foobar" );
return -1; /* Needed for correct operation of go back */
}
static int ReadDir(stream_t *s, input_item_node_t *node)
{
struct vlclua_playlist *sys = s->p_sys;
lua_State *L = sys->L;
luaL_register_namespace( L, "vlc", p_reg_parse );
lua_getglobal( L, "parse" );
if( !lua_isfunction( L, -1 ) )
{
msg_Warn(s, "error running script %s: function %s(): %s",
sys->filename, "parse", "not found");
return VLC_ENOITEM;
}
if( lua_pcall( L, 0, 1, 0 ) )
{
msg_Warn(s, "error running script %s: function %s(): %s",
sys->filename, "parse", lua_tostring(L, lua_gettop(L)));
return VLC_ENOITEM;
}
if (!lua_gettop(L))
{
msg_Err(s, "script went completely foobar");
return VLC_ENOITEM;
}
if (!lua_istable(L, -1))
{
msg_Warn(s, "Playlist should be a table.");
return VLC_ENOITEM;
}
lua_pushnil(L);
/* playlist nil */
while (lua_next(L, -2))
{
input_item_t *item = vlclua_read_input_item(VLC_OBJECT(s), L);
if (item != NULL)
{
/* copy the original URL to the meta data,
* if "URL" is still empty */
char *url = input_item_GetURL(item);
if (url == NULL && s->psz_url != NULL)
input_item_SetURL(item, s->psz_url);
free(url);
input_item_node_AppendItem(node, item);
input_item_Release(item);
}
/* pop the value, keep the key for the next lua_next() call */
lua_pop(L, 1);
}
/* playlist */
return VLC_SUCCESS;
}
/*****************************************************************************
* Open: initialize and create stuff
*****************************************************************************/
int Open_LuaSD( vlc_object_t *p_this )
{
services_discovery_t *p_sd = ( services_discovery_t * )p_this;
services_discovery_sys_t *p_sys;
lua_State *L = NULL;
char *psz_name;
if( !( p_sys = malloc( sizeof( services_discovery_sys_t ) ) ) )
return VLC_ENOMEM;
if( !strcmp( p_sd->psz_name, "lua" ) ||
!strcmp( p_sd->psz_name, "luasd" ) )
{
// We want to load the module name "lua"
// This module can be used to load lua script not registered
// as builtin lua SD modules.
config_ChainParse( p_sd, "lua-", ppsz_sd_options, p_sd->p_cfg );
psz_name = var_GetString( p_sd, "lua-sd" );
}
else
{
// We are loading a builtin lua sd module.
psz_name = strdup(p_sd->psz_name);
}
p_sd->p_sys = p_sys;
p_sd->pf_control = Control;
p_sys->psz_filename = vlclua_find_file( "sd", psz_name );
if( !p_sys->psz_filename )
{
msg_Err( p_sd, "Couldn't find lua services discovery script \"%s\".",
psz_name );
free( psz_name );
goto error;
}
free( psz_name );
L = luaL_newstate();
if( !L )
{
msg_Err( p_sd, "Could not create new Lua State" );
goto error;
}
vlclua_set_this( L, p_sd );
luaL_openlibs( L );
luaL_register_namespace( L, "vlc", p_reg );
luaopen_input( L );
luaopen_msg( L );
luaopen_object( L );
luaopen_sd_sd( L );
luaopen_strings( L );
luaopen_variables( L );
luaopen_stream( L );
luaopen_gettext( L );
luaopen_xml( L );
lua_pop( L, 1 );
if( vlclua_add_modules_path( L, p_sys->psz_filename ) )
{
msg_Warn( p_sd, "Error while setting the module search path for %s",
p_sys->psz_filename );
goto error;
}
if( vlclua_dofile( VLC_OBJECT(p_sd), L, p_sys->psz_filename ) )
{
msg_Err( p_sd, "Error loading script %s: %s", p_sys->psz_filename,
lua_tostring( L, lua_gettop( L ) ) );
lua_pop( L, 1 );
goto error;
}
// No strdup(), just don't remove the string from the lua stack
p_sd->description = vlclua_sd_description( VLC_OBJECT(p_sd), L,
p_sys->psz_filename );
if( p_sd->description == NULL )
p_sd->description = p_sd->psz_name;
p_sys->L = L;
vlc_mutex_init( &p_sys->lock );
vlc_cond_init( &p_sys->cond );
TAB_INIT( p_sys->i_query, p_sys->ppsz_query );
if( vlc_clone( &p_sys->thread, Run, p_sd, VLC_THREAD_PRIORITY_LOW ) )
{
TAB_CLEAN( p_sys->i_query, p_sys->ppsz_query );
vlc_cond_destroy( &p_sys->cond );
vlc_mutex_destroy( &p_sys->lock );
goto error;
}
return VLC_SUCCESS;
error:
if( L )
lua_close( L );
free( p_sys->psz_filename );
free( p_sys );
return VLC_EGENERIC;
}
static int Start_LuaIntf( vlc_object_t *p_this, const char *name )
{
intf_thread_t *p_intf = (intf_thread_t*)p_this;
lua_State *L;
config_ChainParse( p_intf, "lua-", ppsz_intf_options, p_intf->p_cfg );
if( name == NULL )
{
char *n = var_InheritString( p_this, "lua-intf" );
if( unlikely(n == NULL) )
return VLC_EGENERIC;
name = p_intf->obj.header = n;
}
else
/* Cleaned up by vlc_object_release() */
p_intf->obj.header = strdup( name );
intf_sys_t *p_sys = malloc( sizeof(*p_sys) );
if( unlikely(p_sys == NULL) )
{
free( p_intf->obj.header );
p_intf->obj.header = NULL;
return VLC_ENOMEM;
}
p_intf->p_sys = p_sys;
p_sys->psz_filename = vlclua_find_file( "intf", name );
if( !p_sys->psz_filename )
{
msg_Err( p_intf, "Couldn't find lua interface script \"%s\".",
name );
goto error;
}
msg_Dbg( p_intf, "Found lua interface script: %s", p_sys->psz_filename );
L = luaL_newstate();
if( !L )
{
msg_Err( p_intf, "Could not create new Lua State" );
goto error;
}
vlclua_set_this( L, p_intf );
vlclua_set_playlist_internal( L, pl_Get(p_intf) );
luaL_openlibs( L );
/* register our functions */
luaL_register_namespace( L, "vlc", p_reg );
/* register submodules */
luaopen_config( L );
luaopen_httpd( L );
luaopen_input( L );
luaopen_msg( L );
luaopen_misc( L );
if( vlclua_fd_init( L, &p_sys->dtable ) )
{
lua_close( L );
goto error;
}
luaopen_object( L );
luaopen_osd( L );
luaopen_playlist( L );
luaopen_sd_intf( L );
luaopen_stream( L );
luaopen_strings( L );
luaopen_variables( L );
luaopen_video( L );
luaopen_vlm( L );
luaopen_volume( L );
luaopen_gettext( L );
luaopen_xml( L );
luaopen_equalizer( L );
#if defined(_WIN32) && !VLC_WINSTORE_APP
luaopen_win( L );
#endif
/* clean up */
lua_pop( L, 1 );
/* Setup the module search path */
if( vlclua_add_modules_path( L, p_sys->psz_filename ) )
{
msg_Warn( p_intf, "Error while setting the module search path for %s",
p_sys->psz_filename );
lua_close( L );
goto error;
}
/*
* Get the lua-config string.
* If the string is empty, try with the old http-* or telnet-* options
* and build the right configuration line
*/
bool b_config_set = false;
char *psz_config = var_InheritString( p_intf, "lua-config" );
if( !psz_config )
psz_config = MakeConfig( p_intf, name );
if( psz_config )
{
char *psz_buffer;
if( asprintf( &psz_buffer, "config={%s}", psz_config ) != -1 )
{
char *psz_log = StripPasswords( psz_buffer );
if( psz_log != NULL )
{
msg_Dbg( p_intf, "Setting config variable: %s", psz_log );
free( psz_log );
}
if( luaL_dostring( L, psz_buffer ) == 1 )
msg_Err( p_intf, "Error while parsing \"lua-config\"." );
free( psz_buffer );
lua_getglobal( L, "config" );
if( lua_istable( L, -1 ) )
{
if( !strcmp( name, "cli" ) )
{
lua_getfield( L, -1, "rc" );
if( lua_istable( L, -1 ) )
{
/* msg_Warn( p_intf, "The `rc' lua interface script "
"was renamed `cli', please update "
"your configuration!" ); */
lua_setfield( L, -2, "cli" );
}
else
lua_pop( L, 1 );
}
lua_getfield( L, -1, name );
if( lua_istable( L, -1 ) )
{
lua_setglobal( L, "config" );
b_config_set = true;
}
}
}
free( psz_config );
}
if( !b_config_set )
{
lua_newtable( L );
lua_setglobal( L, "config" );
}
/* Wrapper for legacy telnet config */
if ( !strcmp( name, "telnet" ) )
{
/* msg_Warn( p_intf, "The `telnet' lua interface script was replaced "
"by `cli', please update your configuration!" ); */
char *wrapped_file = vlclua_find_file( "intf", "cli" );
if( !wrapped_file )
{
msg_Err( p_intf, "Couldn't find lua interface script \"cli\", "
"needed by telnet wrapper" );
lua_close( p_sys->L );
goto error;
}
lua_pushstring( L, wrapped_file );
lua_setglobal( L, "wrapped_file" );
free( wrapped_file );
}
p_sys->L = L;
if( vlc_clone( &p_sys->thread, Run, p_intf, VLC_THREAD_PRIORITY_LOW ) )
{
vlclua_fd_cleanup( &p_sys->dtable );
lua_close( p_sys->L );
goto error;
}
return VLC_SUCCESS;
error:
free( p_sys->psz_filename );
free( p_sys );
free( p_intf->obj.header );
p_intf->obj.header = NULL;
return VLC_EGENERIC;
}
/*****************************************************************************
* Called through lua_scripts_batch_execute to call 'probe' on
* the script pointed by psz_filename.
*****************************************************************************/
static int probe_luascript( vlc_object_t *p_this, const char * psz_filename,
const luabatch_context_t *p_context )
{
VLC_UNUSED(p_context);
demux_t * p_demux = (demux_t *)p_this;
p_demux->p_sys->psz_filename = strdup(psz_filename);
/* Initialise Lua state structure */
lua_State *L = luaL_newstate();
if( !L )
{
msg_Err( p_demux, "Could not create new Lua State" );
goto error;
}
p_demux->p_sys->L = L;
/* Load Lua libraries */
luaL_openlibs( L ); /* FIXME: Don't open all the libs? */
vlclua_set_this( L, p_demux );
luaL_register_namespace( L, "vlc", p_reg );
luaopen_msg( L );
luaopen_strings( L );
luaopen_stream( L );
luaopen_variables( L );
luaopen_xml( L );
lua_pushstring( L, p_demux->psz_location );
lua_setfield( L, -2, "path" );
lua_pushstring( L, p_demux->psz_access );
lua_setfield( L, -2, "access" );
lua_pop( L, 1 );
/* Setup the module search path */
if( vlclua_add_modules_path( L, psz_filename ) )
{
msg_Warn( p_demux, "Error while setting the module search path for %s",
psz_filename );
goto error;
}
/* Load and run the script(s) */
if( vlclua_dofile( VLC_OBJECT(p_demux), L, psz_filename ) )
{
msg_Warn( p_demux, "Error loading script %s: %s", psz_filename,
lua_tostring( L, lua_gettop( L ) ) );
goto error;
}
lua_getglobal( L, "probe" );
if( !lua_isfunction( L, -1 ) )
{
msg_Warn( p_demux, "Error while running script %s, "
"function probe() not found", psz_filename );
goto error;
}
if( lua_pcall( L, 0, 1, 0 ) )
{
msg_Warn( p_demux, "Error while running script %s, "
"function probe(): %s", psz_filename,
lua_tostring( L, lua_gettop( L ) ) );
goto error;
}
if( lua_gettop( L ) )
{
if( lua_toboolean( L, 1 ) )
{
msg_Dbg( p_demux, "Lua playlist script %s's "
"probe() function was successful", psz_filename );
lua_pop( L, 1 );
return VLC_SUCCESS;
}
}
error:
lua_pop( L, 1 );
lua_close( p_demux->p_sys->L );
p_demux->p_sys->L = NULL;
FREENULL( p_demux->p_sys->psz_filename );
return VLC_EGENERIC;
}
/*****************************************************************************
* Called through lua_scripts_batch_execute to call 'probe' on
* the script pointed by psz_filename.
*****************************************************************************/
static int probe_luascript(vlc_object_t *obj, const char *filename,
const luabatch_context_t *ctx)
{
stream_t *s = (stream_t *)obj;
struct vlclua_playlist *sys = s->p_sys;
/* Initialise Lua state structure */
lua_State *L = luaL_newstate();
if( !L )
return VLC_ENOMEM;
sys->L = L;
/* Load Lua libraries */
luaL_openlibs( L ); /* FIXME: Don't open all the libs? */
vlclua_set_this(L, s);
luaL_register_namespace( L, "vlc", p_reg );
luaopen_msg( L );
luaopen_strings( L );
luaopen_stream( L );
luaopen_variables( L );
luaopen_xml( L );
if (sys->path != NULL)
lua_pushstring(L, sys->path);
else
lua_pushnil(L);
lua_setfield( L, -2, "path" );
if (sys->access != NULL)
lua_pushstring(L, sys->access);
else
lua_pushnil(L);
lua_setfield( L, -2, "access" );
lua_pop( L, 1 );
/* Setup the module search path */
if (vlclua_add_modules_path(L, filename))
{
msg_Warn(s, "error setting the module search path for %s", filename);
goto error;
}
/* Load and run the script(s) */
if (vlclua_dofile(VLC_OBJECT(s), L, filename))
{
msg_Warn(s, "error loading script %s: %s", filename,
lua_tostring(L, lua_gettop(L)));
goto error;
}
lua_getglobal( L, "probe" );
if( !lua_isfunction( L, -1 ) )
{
msg_Warn(s, "error running script %s: function %s(): %s",
filename, "probe", "not found");
goto error;
}
if( lua_pcall( L, 0, 1, 0 ) )
{
msg_Warn(s, "error running script %s: function %s(): %s",
filename, "probe", lua_tostring(L, lua_gettop(L)));
goto error;
}
if( lua_gettop( L ) )
{
if( lua_toboolean( L, 1 ) )
{
msg_Dbg(s, "Lua playlist script %s's "
"probe() function was successful", filename );
lua_pop( L, 1 );
sys->filename = strdup(filename);
return VLC_SUCCESS;
}
}
(void) ctx;
error:
lua_pop( L, 1 );
lua_close(sys->L);
return VLC_EGENERIC;
}
