smarty/internals/core.assemble_plugin_filepath.php
author Dan
Sun, 23 Nov 2008 23:55:37 -0500
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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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 * assemble filepath of requested plugin
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 *
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 * @param string $type
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 * @param string $name
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 * @return string|false
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 */
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function smarty_core_assemble_plugin_filepath($params, &$smarty)
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{
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    static $_filepaths_cache = array();
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    $_plugin_filename = $params['type'] . '.' . $params['name'] . '.php';
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    if (isset($_filepaths_cache[$_plugin_filename])) {
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        return $_filepaths_cache[$_plugin_filename];
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    }
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    $_return = false;
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    foreach ((array)$smarty->plugins_dir as $_plugin_dir) {
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        $_plugin_filepath = $_plugin_dir . DIRECTORY_SEPARATOR . $_plugin_filename;
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        // see if path is relative
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        if (!preg_match("/^([\/\\\\]|[a-zA-Z]:[\/\\\\])/", $_plugin_dir)) {
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            $_relative_paths[] = $_plugin_dir;
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            // relative path, see if it is in the SMARTY_DIR
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            if (@is_readable(SMARTY_DIR . $_plugin_filepath)) {
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                $_return = SMARTY_DIR . $_plugin_filepath;
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                break;
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            }
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        }
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        // try relative to cwd (or absolute)
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        if (@is_readable($_plugin_filepath)) {
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            $_return = $_plugin_filepath;
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            break;
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        }
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    }
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    if($_return === false) {
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        // still not found, try PHP include_path
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        if(isset($_relative_paths)) {
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            foreach ((array)$_relative_paths as $_plugin_dir) {
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                $_plugin_filepath = $_plugin_dir . DIRECTORY_SEPARATOR . $_plugin_filename;
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                $_params = array('file_path' => $_plugin_filepath);
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                require_once(SMARTY_CORE_DIR . 'core.get_include_path.php');
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                if(smarty_core_get_include_path($_params, $smarty)) {
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                    $_return = $_params['new_file_path'];
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                    break;
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                }
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            }
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        }
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    }
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    $_filepaths_cache[$_plugin_filename] = $_return;
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    return $_return;
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}
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/* vim: set expandtab: */
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?>