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248 jpm 1 
<?php
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// $Id: Embed.php,v 1.1 2005-01-20 19:43:20 jpm Exp $
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/**
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*
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* This class implements a Text_Wiki_Parse to embed the contents of a URL
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* inside the page at render-time.  Typically used to get script output.
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* This differs from the 'include' rule, which incorporates results at
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* parse-time; 'embed' output does not get parsed by Text_Wiki, while
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* 'include' ouput does.
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*
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* This rule is inherently not secure; it allows cross-site scripting to
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* occur if the embedded output has <script> or other similar tags.  Be
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* careful.
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*
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* @author Paul M. Jones <pmjones@ciaweb.net>
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*
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* @package Text_Wiki
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*
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*/
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class Text_Wiki_Parse_Embed extends Text_Wiki_Parse {
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    var $conf = array(
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        'base' => '/path/to/scripts/'
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    );
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    var $file = null;
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    var $output = null;
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    var $vars = null;
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    /**
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    *
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    * The regular expression used to find source text matching this
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    * rule.
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    *
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    * @access public
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    *
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    * @var string
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    *
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    */
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    var $regex = '/(\[\[embed )(.+?)( .+?)?(\]\])/i';
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    /**
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    *
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    * Generates a token entry for the matched text.  Token options are:
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    *
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    * 'text' => The full matched text, not including the <code></code> tags.
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    *
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    * @access public
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    *
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    * @param array &$matches The array of matches from parse().
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    *
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    * @return A delimited token number to be used as a placeholder in
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    * the source text.
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    *
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    */
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    function process(&$matches)
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    {
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        // save the file location
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        $this->file = $this->getConf('base', './') . $matches[2];
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        // extract attribs as variables in the local space
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        $this->vars = $this->getAttrs($matches[3]);
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        unset($this->vars['this']);
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        extract($this->vars);
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        // run the script
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        ob_start();
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        include($this->file);
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        $this->output = ob_get_contents();
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        ob_end_clean();
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        // done, place the script output directly in the source
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        return $this->wiki->addToken(
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            $this->rule,
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            array('text' => $this->output)
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        );
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    }
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}
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?>