Viewing file:  core.load_plugins.php (4.45 KB) -rw-r--r--
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<?php
/**
* Smarty plugin
* @package Smarty
* @subpackage plugins
*/
/**
* Load requested plugins
*
* @param array $plugins
*/
// $plugins
function smarty_core_load_plugins($params, &$smarty)
{
foreach ($params['plugins'] as $_plugin_info) {
list($_type, $_name, $_tpl_file, $_tpl_line, $_delayed_loading) = $_plugin_info;
$_plugin = &$smarty->_plugins[$_type][$_name];
/*
* We do not load plugin more than once for each instance of Smarty.
* The following code checks for that. The plugin can also be
* registered dynamically at runtime, in which case template file
* and line number will be unknown, so we fill them in.
*
* The final element of the info array is a flag that indicates
* whether the dynamically registered plugin function has been
* checked for existence yet or not.
*/
if (isset($_plugin)) {
if (empty($_plugin[3])) {
if (!is_callable($_plugin[0])) {
$smarty->_trigger_fatal_error("[plugin] $_type '$_name' is not implemented", $_tpl_file, $_tpl_line, __FILE__, __LINE__);
} else {
$_plugin[1] = $_tpl_file;
$_plugin[2] = $_tpl_line;
$_plugin[3] = true;
if (!isset($_plugin[4])) $_plugin[4] = true; /* cacheable */
}
}
continue;
} else if ($_type == 'insert') {
/*
* For backwards compatibility, we check for insert functions in
* the symbol table before trying to load them as a plugin.
*/
$_plugin_func = 'insert_' . $_name;
if (function_exists($_plugin_func)) {
$_plugin = array($_plugin_func, $_tpl_file, $_tpl_line, true, false);
continue;
}
}
$_plugin_file = $smarty->_get_plugin_filepath($_type, $_name);
if (! $_found = ($_plugin_file != false)) {
$_message = "could not load plugin file '$_type.$_name.php'\n";
}
/*
* If plugin file is found, it -must- provide the properly named
* plugin function. In case it doesn't, simply output the error and
* do not fall back on any other method.
*/
if ($_found) {
include_once $_plugin_file;
$_plugin_func = 'smarty_' . $_type . '_' . $_name;
if (!function_exists($_plugin_func)) {
$smarty->_trigger_fatal_error("[plugin] function $_plugin_func() not found in $_plugin_file", $_tpl_file, $_tpl_line, __FILE__, __LINE__);
continue;
}
}
/*
* In case of insert plugins, their code may be loaded later via
* 'script' attribute.
*/
else if ($_type == 'insert' && $_delayed_loading) {
$_plugin_func = 'smarty_' . $_type . '_' . $_name;
$_found = true;
}
/*
* Plugin specific processing and error checking.
*/
if (!$_found) {
if ($_type == 'modifier') {
/*
* In case modifier falls back on using PHP functions
* directly, we only allow those specified in the security
* context.
*/
if ($smarty->security && !in_array($_name, $smarty->security_settings['MODIFIER_FUNCS'])) {
$_message = "(secure mode) modifier '$_name' is not allowed";
} else {
if (!function_exists($_name)) {
$_message = "modifier '$_name' is not implemented";
} else {
$_plugin_func = $_name;
$_found = true;
}
}
} else if ($_type == 'function') {
/*
* This is a catch-all situation.
*/
$_message = "unknown tag - '$_name'";
}
}
if ($_found) {
$smarty->_plugins[$_type][$_name] = array($_plugin_func, $_tpl_file, $_tpl_line, true, true);
} else {
// output error
$smarty->_trigger_fatal_error('[plugin] ' . $_message, $_tpl_file, $_tpl_line, __FILE__, __LINE__);
}
}
}
/* vim: set expandtab: */
?>
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