smarty/internals/core.load_resource_plugin.php
author Dan
Tue, 05 Aug 2008 13:17:57 -0400
changeset 27 20a36fe254c9
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permissions -rw-r--r--
Merging artwork (nighthawk) + keepalive (scribus) branches
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<?php
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/**
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 * Smarty plugin
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 * @package Smarty
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 * @subpackage plugins
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 */
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/**
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 * load a resource plugin
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 *
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 * @param string $type
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 */
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// $type
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function smarty_core_load_resource_plugin($params, &$smarty)
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{
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    /*
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     * Resource plugins are not quite like the other ones, so they are
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     * handled differently. The first element of plugin info is the array of
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     * functions provided by the plugin, the second one indicates whether
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     * all of them exist or not.
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     */
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    $_plugin = &$smarty->_plugins['resource'][$params['type']];
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    if (isset($_plugin)) {
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        if (!$_plugin[1] && count($_plugin[0])) {
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            $_plugin[1] = true;
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            foreach ($_plugin[0] as $_plugin_func) {
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                if (!is_callable($_plugin_func)) {
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                    $_plugin[1] = false;
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                    break;
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                }
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            }
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        }
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        if (!$_plugin[1]) {
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            $smarty->_trigger_fatal_error("[plugin] resource '" . $params['type'] . "' is not implemented", null, null, __FILE__, __LINE__);
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        }
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        return;
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    }
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    $_plugin_file = $smarty->_get_plugin_filepath('resource', $params['type']);
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    $_found = ($_plugin_file != false);
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    if ($_found) {            /*
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         * If the plugin file is found, it -must- provide the properly named
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         * plugin functions.
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         */
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        include_once($_plugin_file);
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        /*
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         * Locate functions that we require the plugin to provide.
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         */
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        $_resource_ops = array('source', 'timestamp', 'secure', 'trusted');
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        $_resource_funcs = array();
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        foreach ($_resource_ops as $_op) {
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            $_plugin_func = 'smarty_resource_' . $params['type'] . '_' . $_op;
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            if (!function_exists($_plugin_func)) {
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                $smarty->_trigger_fatal_error("[plugin] function $_plugin_func() not found in $_plugin_file", null, null, __FILE__, __LINE__);
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                return;
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            } else {
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                $_resource_funcs[] = $_plugin_func;
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            }
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        }
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        $smarty->_plugins['resource'][$params['type']] = array($_resource_funcs, true);
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    }
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}
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/* vim: set expandtab: */
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?>