| 1 | <?php |
| 2 | /** |
| 3 | * Smarty plugin |
| 4 | * @package Smarty |
| 5 | * @subpackage plugins |
| 6 | */ |
| 7 | |
| 8 | /** |
| 9 | * Load requested plugins |
| 10 | * |
| 11 | * @param array $plugins |
| 12 | */ |
| 13 | |
| 14 | // $plugins |
| 15 | |
| 16 | function smarty_core_load_plugins($params, &$smarty) |
| 17 | { |
| 18 | |
| 19 | foreach ($params['plugins'] as $_plugin_info) { |
| 20 | list($_type, $_name, $_tpl_file, $_tpl_line, $_delayed_loading) = $_plugin_info; |
| 21 | $_plugin = &$smarty->_plugins[$_type][$_name]; |
| 22 | |
| 23 | /* |
| 24 | * We do not load plugin more than once for each instance of Smarty. |
| 25 | * The following code checks for that. The plugin can also be |
| 26 | * registered dynamically at runtime, in which case template file |
| 27 | * and line number will be unknown, so we fill them in. |
| 28 | * |
| 29 | * The final element of the info array is a flag that indicates |
| 30 | * whether the dynamically registered plugin function has been |
| 31 | * checked for existence yet or not. |
| 32 | */ |
| 33 | if (isset($_plugin)) { |
| 34 | if (empty($_plugin[3])) { |
| 35 | if (!is_callable($_plugin[0])) { |
| 36 | $smarty->_trigger_fatal_error("[plugin] $_type '$_name' is not implemented", $_tpl_file, $_tpl_line, __FILE__, __LINE__); |
| 37 | } else { |
| 38 | $_plugin[1] = $_tpl_file; |
| 39 | $_plugin[2] = $_tpl_line; |
| 40 | $_plugin[3] = true; |
| 41 | if (!isset($_plugin[4])) $_plugin[4] = true; /* cacheable */ |
| 42 | } |
| 43 | } |
| 44 | continue; |
| 45 | } else if ($_type == 'insert') { |
| 46 | /* |
| 47 | * For backwards compatibility, we check for insert functions in |
| 48 | * the symbol table before trying to load them as a plugin. |
| 49 | */ |
| 50 | $_plugin_func = 'insert_' . $_name; |
| 51 | if (function_exists($_plugin_func)) { |
| 52 | $_plugin = array($_plugin_func, $_tpl_file, $_tpl_line, true, false); |
| 53 | continue; |
| 54 | } |
| 55 | } |
| 56 | |
| 57 | $_plugin_file = $smarty->_get_plugin_filepath($_type, $_name); |
| 58 | |
| 59 | if (! $_found = ($_plugin_file != false)) { |
| 60 | $_message = "could not load plugin file '$_type.$_name.php'\n"; |
| 61 | } |
| 62 | |
| 63 | /* |
| 64 | * If plugin file is found, it -must- provide the properly named |
| 65 | * plugin function. In case it doesn't, simply output the error and |
| 66 | * do not fall back on any other method. |
| 67 | */ |
| 68 | if ($_found) { |
| 69 | include_once $_plugin_file; |
| 70 | |
| 71 | $_plugin_func = 'smarty_' . $_type . '_' . $_name; |
| 72 | if (!function_exists($_plugin_func)) { |
| 73 | $smarty->_trigger_fatal_error("[plugin] function $_plugin_func() not found in $_plugin_file", $_tpl_file, $_tpl_line, __FILE__, __LINE__); |
| 74 | continue; |
| 75 | } |
| 76 | } |
| 77 | /* |
| 78 | * In case of insert plugins, their code may be loaded later via |
| 79 | * 'script' attribute. |
| 80 | */ |
| 81 | else if ($_type == 'insert' && $_delayed_loading) { |
| 82 | $_plugin_func = 'smarty_' . $_type . '_' . $_name; |
| 83 | $_found = true; |
| 84 | } |
| 85 | |
| 86 | /* |
| 87 | * Plugin specific processing and error checking. |
| 88 | */ |
| 89 | if (!$_found) { |
| 90 | if ($_type == 'modifier') { |
| 91 | /* |
| 92 | * In case modifier falls back on using PHP functions |
| 93 | * directly, we only allow those specified in the security |
| 94 | * context. |
| 95 | */ |
| 96 | if ($smarty->security && !in_array($_name, $smarty->security_settings['MODIFIER_FUNCS'])) { |
| 97 | $_message = "(secure mode) modifier '$_name' is not allowed"; |
| 98 | } else { |
| 99 | if (!function_exists($_name)) { |
| 100 | $_message = "modifier '$_name' is not implemented"; |
| 101 | } else { |
| 102 | $_plugin_func = $_name; |
| 103 | $_found = true; |
| 104 | } |
| 105 | } |
| 106 | } else if ($_type == 'function') { |
| 107 | /* |
| 108 | * This is a catch-all situation. |
| 109 | */ |
| 110 | $_message = "unknown tag - '$_name'"; |
| 111 | } |
| 112 | } |
| 113 | |
| 114 | if ($_found) { |
| 115 | $smarty->_plugins[$_type][$_name] = array($_plugin_func, $_tpl_file, $_tpl_line, true, true); |
| 116 | } else { |
| 117 | // output error |
| 118 | $smarty->_trigger_fatal_error('[plugin] ' . $_message, $_tpl_file, $_tpl_line, __FILE__, __LINE__); |
| 119 | } |
| 120 | } |
| 121 | } |
| 122 | |
| 123 | /* vim: set expandtab: */ |
| 124 | |
| 125 | ?> |