| 1 | <?php |
| 2 | |
| 3 | /** |
| 4 | * |
| 5 | * Embeds the results of a PHP script at render-time. |
| 6 | * |
| 7 | * @category Text |
| 8 | * |
| 9 | * @package Text_Wiki |
| 10 | * |
| 11 | * @author Paul M. Jones <pmjones@php.net> |
| 12 | * |
| 13 | * @license LGPL |
| 14 | * |
| 15 | * @version $Id: Embed.php,v 1.3 2005/02/23 17:38:29 pmjones Exp $ |
| 16 | * |
| 17 | */ |
| 18 | |
| 19 | /** |
| 20 | * |
| 21 | * Embeds the results of a PHP script at render-time. |
| 22 | * |
| 23 | * This class implements a Text_Wiki_Parse to embed the contents of a URL |
| 24 | * inside the page at render-time. Typically used to get script output. |
| 25 | * This differs from the 'include' rule, which incorporates results at |
| 26 | * parse-time; 'embed' output does not get parsed by Text_Wiki, while |
| 27 | * 'include' ouput does. |
| 28 | * |
| 29 | * This rule is inherently not secure; it allows cross-site scripting to |
| 30 | * occur if the embedded output has <script> or other similar tags. Be |
| 31 | * careful. |
| 32 | * |
| 33 | * @category Text |
| 34 | * |
| 35 | * @package Text_Wiki |
| 36 | * |
| 37 | * @author Paul M. Jones <pmjones@php.net> |
| 38 | * |
| 39 | */ |
| 40 | |
| 41 | class Text_Wiki_Parse_Embed extends Text_Wiki_Parse { |
| 42 | |
| 43 | var $conf = array( |
| 44 | 'base' => '/path/to/scripts/' |
| 45 | ); |
| 46 | |
| 47 | var $file = null; |
| 48 | |
| 49 | var $output = null; |
| 50 | |
| 51 | var $vars = null; |
| 52 | |
| 53 | |
| 54 | /** |
| 55 | * |
| 56 | * The regular expression used to find source text matching this |
| 57 | * rule. |
| 58 | * |
| 59 | * @access public |
| 60 | * |
| 61 | * @var string |
| 62 | * |
| 63 | */ |
| 64 | |
| 65 | var $regex = '/(\[\[embed )(.+?)( .+?)?(\]\])/i'; |
| 66 | |
| 67 | |
| 68 | /** |
| 69 | * |
| 70 | * Generates a token entry for the matched text. Token options are: |
| 71 | * |
| 72 | * 'text' => The full matched text, not including the <code></code> tags. |
| 73 | * |
| 74 | * @access public |
| 75 | * |
| 76 | * @param array &$matches The array of matches from parse(). |
| 77 | * |
| 78 | * @return A delimited token number to be used as a placeholder in |
| 79 | * the source text. |
| 80 | * |
| 81 | */ |
| 82 | |
| 83 | function process(&$matches) |
| 84 | { |
| 85 | // save the file location |
| 86 | $this->file = $this->getConf('base', './') . $matches[2]; |
| 87 | |
| 88 | // extract attribs as variables in the local space |
| 89 | $this->vars = $this->getAttrs($matches[3]); |
| 90 | unset($this->vars['this']); |
| 91 | extract($this->vars); |
| 92 | |
| 93 | // run the script |
| 94 | ob_start(); |
| 95 | include($this->file); |
| 96 | $this->output = ob_get_contents(); |
| 97 | ob_end_clean(); |
| 98 | |
| 99 | // done, place the script output directly in the source |
| 100 | return $this->wiki->addToken( |
| 101 | $this->rule, |
| 102 | array('text' => $this->output) |
| 103 | ); |
| 104 | } |
| 105 | } |
| 106 | ?> |