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