smarty/internals/core.get_php_resource.php
author Dan
Sun, 24 Aug 2008 01:28:52 -0400
changeset 37 65e70ada71c9
parent 0 c63de9eb7045
permissions -rw-r--r--
Major changes to webserver backend. All socket functions are abstracted to allow support for stream_* which seems to be both more widely supported and better at handling blocking and timeouts, at the cost of a small bit of speed. Keep-Alive times out properly and thanks to a bit of IPC code from stream_create_pair(), zombie children are mostly eliminated by proper pcntl_wait() being called when a child shuts down normally, and children die within 0.2sec if the parent receives a SIGTERM or SIGINT, even if the children are waiting on the socket.
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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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 * Retrieves PHP script resource
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 *
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 * sets $php_resource to the returned resource
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 * @param string $resource
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 * @param string $resource_type
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 * @param  $php_resource
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 * @return boolean
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 */
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function smarty_core_get_php_resource(&$params, &$smarty)
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{
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    $params['resource_base_path'] = $smarty->trusted_dir;
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    $smarty->_parse_resource_name($params, $smarty);
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    /*
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     * Find out if the resource exists.
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     */
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    if ($params['resource_type'] == 'file') {
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        $_readable = false;
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        if(file_exists($params['resource_name']) && is_readable($params['resource_name'])) {
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            $_readable = true;
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        } else {
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            // test for file in include_path
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            $_params = array('file_path' => $params['resource_name']);
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            require_once(SMARTY_CORE_DIR . 'core.get_include_path.php');
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            if(smarty_core_get_include_path($_params, $smarty)) {
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                $_include_path = $_params['new_file_path'];
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                $_readable = true;
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            }
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        }
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    } else if ($params['resource_type'] != 'file') {
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        $_template_source = null;
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        $_readable = is_callable($smarty->_plugins['resource'][$params['resource_type']][0][0])
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            && call_user_func_array($smarty->_plugins['resource'][$params['resource_type']][0][0],
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                                    array($params['resource_name'], &$_template_source, &$smarty));
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    }
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    /*
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     * Set the error function, depending on which class calls us.
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     */
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    if (method_exists($smarty, '_syntax_error')) {
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        $_error_funcc = '_syntax_error';
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    } else {
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        $_error_funcc = 'trigger_error';
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    }
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    if ($_readable) {
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        if ($smarty->security) {
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            require_once(SMARTY_CORE_DIR . 'core.is_trusted.php');
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            if (!smarty_core_is_trusted($params, $smarty)) {
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                $smarty->$_error_funcc('(secure mode) ' . $params['resource_type'] . ':' . $params['resource_name'] . ' is not trusted');
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                return false;
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            }
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        }
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    } else {
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        $smarty->$_error_funcc($params['resource_type'] . ':' . $params['resource_name'] . ' is not readable');
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        return false;
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    }
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    if ($params['resource_type'] == 'file') {
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        $params['php_resource'] = $params['resource_name'];
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    } else {
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        $params['php_resource'] = $_template_source;
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    }
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    return true;
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}
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/* vim: set expandtab: */
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?>