[Sommaire] [Imprimer]

   1  <?php
   2  // $Id: Embed.php,v 1.1 2005/01/31 15:46:52 pmjones Exp $
   3  
   4  
   5  /**
   6  * 
   7  * This class implements a Text_Wiki_Parse to embed the contents of a URL
   8  * inside the page at render-time.  Typically used to get script output.
   9  * This differs from the 'include' rule, which incorporates results at
  10  * parse-time; 'embed' output does not get parsed by Text_Wiki, while
  11  * 'include' ouput does.
  12  *
  13  * This rule is inherently not secure; it allows cross-site scripting to
  14  * occur if the embedded output has <script> or other similar tags.  Be
  15  * careful.
  16  *
  17  * @author Paul M. Jones <pmjones@ciaweb.net>
  18  *
  19  * @package Text_Wiki
  20  *
  21  */
  22  
  23  class Text_Wiki_Parse_Embed extends Text_Wiki_Parse {
  24      
  25      var $conf = array(
  26          'base' => '/path/to/scripts/'
  27      );
  28      
  29      var $file = null;
  30  
  31      var $output = null;
  32  
  33      var $vars = null;
  34  
  35  
  36      /**
  37      * 
  38      * The regular expression used to find source text matching this
  39      * rule.
  40      * 
  41      * @access public
  42      * 
  43      * @var string
  44      * 
  45      */
  46      
  47      var $regex = '/(\[\[embed )(.+?)( .+?)?(\]\])/i';
  48      
  49      
  50      /**
  51      * 
  52      * Generates a token entry for the matched text.  Token options are:
  53      * 
  54      * 'text' => The full matched text, not including the <code></code> tags.
  55      * 
  56      * @access public
  57      *
  58      * @param array &$matches The array of matches from parse().
  59      *
  60      * @return A delimited token number to be used as a placeholder in
  61      * the source text.
  62      *
  63      */
  64      
  65      function process(&$matches)
  66      {    
  67          // save the file location
  68          $this->file = $this->getConf('base', './') . $matches[2];
  69          
  70          // extract attribs as variables in the local space
  71          $this->vars = $this->getAttrs($matches[3]);
  72          unset($this->vars['this']);
  73          extract($this->vars);
  74          
  75          // run the script
  76          ob_start();
  77          include($this->file);
  78          $this->output = ob_get_contents();
  79          ob_end_clean();
  80          
  81          // done, place the script output directly in the source
  82          return $this->wiki->addToken(
  83              $this->rule,
  84              array('text' => $this->output)
  85          );
  86      }
  87  }
  88  ?>