diff options
Diffstat (limited to 'include/smarty/libs/internals/core.load_plugins.php')
| -rw-r--r-- | include/smarty/libs/internals/core.load_plugins.php | 125 |
1 files changed, 125 insertions, 0 deletions
diff --git a/include/smarty/libs/internals/core.load_plugins.php b/include/smarty/libs/internals/core.load_plugins.php new file mode 100644 index 000000000..6db1dc51d --- /dev/null +++ b/include/smarty/libs/internals/core.load_plugins.php @@ -0,0 +1,125 @@ +<?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: */ + +?> |