includes/wikiengine/Parse/Default/Embed.php
author Dan
Sat, 25 Aug 2007 12:11:31 -0400
changeset 98 6457a9b983c6
parent 1 fe660c52c48f
permissions -rw-r--r--
Fixed non-object reference in databaseless template, added locking for Javascript paginator, made comments on AES key size more clear in constants, and disallowed "anonymous" and IP addresses for admin username in install.php; Loch Ness release candidate

<?php

/**
* 
* Embeds the results of a PHP script at render-time.
* 
* @category Text
* 
* @package Text_Wiki
* 
* @author Paul M. Jones <pmjones@php.net>
* 
* @license LGPL
* 
* @version $Id: Embed.php,v 1.3 2005/02/23 17:38:29 pmjones Exp $
* 
*/

/**
* 
* Embeds the results of a PHP script at render-time.
* 
* This class implements a Text_Wiki_Parse to embed the contents of a URL
* inside the page at render-time.  Typically used to get script output.
* This differs from the 'include' rule, which incorporates results at
* parse-time; 'embed' output does not get parsed by Text_Wiki, while
* 'include' ouput does.
*
* This rule is inherently not secure; it allows cross-site scripting to
* occur if the embedded output has <script> or other similar tags.  Be
* careful.
*
* @category Text
* 
* @package Text_Wiki
* 
* @author Paul M. Jones <pmjones@php.net>
* 
*/

class Text_Wiki_Parse_Embed extends Text_Wiki_Parse {
    
    var $conf = array(
        'base' => '/path/to/scripts/'
    );
    
    var $file = null;

    var $output = null;

    var $vars = null;


    /**
    * 
    * The regular expression used to find source text matching this
    * rule.
    * 
    * @access public
    * 
    * @var string
    * 
    */
    
    var $regex = '/(\[\[embed )(.+?)( .+?)?(\]\])/i';
    
    
    /**
    * 
    * Generates a token entry for the matched text.  Token options are:
    * 
    * 'text' => The full matched text, not including the <code></code> tags.
    * 
    * @access public
    *
    * @param array &$matches The array of matches from parse().
    *
    * @return A delimited token number to be used as a placeholder in
    * the source text.
    *
    */
    
    function process(&$matches)
    {    
        // save the file location
        $this->file = $this->getConf('base', './') . $matches[2];
        
        // extract attribs as variables in the local space
        $this->vars = $this->getAttrs($matches[3]);
        unset($this->vars['this']);
        extract($this->vars);
        
        // run the script
        ob_start();
        include($this->file);
        $this->output = ob_get_contents();
        ob_end_clean();
        
        // done, place the script output directly in the source
        return $this->wiki->addToken(
            $this->rule,
            array('text' => $this->output)
        );
    }
}
?>