diff options
Diffstat (limited to 'library/vendor/HTMLPurifier/Filter/YouTube.php')
-rw-r--r-- | library/vendor/HTMLPurifier/Filter/YouTube.php | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/library/vendor/HTMLPurifier/Filter/YouTube.php b/library/vendor/HTMLPurifier/Filter/YouTube.php new file mode 100644 index 0000000..276d836 --- /dev/null +++ b/library/vendor/HTMLPurifier/Filter/YouTube.php @@ -0,0 +1,65 @@ +<?php + +class HTMLPurifier_Filter_YouTube extends HTMLPurifier_Filter +{ + + /** + * @type string + */ + public $name = 'YouTube'; + + /** + * @param string $html + * @param HTMLPurifier_Config $config + * @param HTMLPurifier_Context $context + * @return string + */ + public function preFilter($html, $config, $context) + { + $pre_regex = '#<object[^>]+>.+?' . + '(?:http:)?//www.youtube.com/((?:v|cp)/[A-Za-z0-9\-_=]+).+?</object>#s'; + $pre_replace = '<span class="youtube-embed">\1</span>'; + return preg_replace($pre_regex, $pre_replace, $html); + } + + /** + * @param string $html + * @param HTMLPurifier_Config $config + * @param HTMLPurifier_Context $context + * @return string + */ + public function postFilter($html, $config, $context) + { + $post_regex = '#<span class="youtube-embed">((?:v|cp)/[A-Za-z0-9\-_=]+)</span>#'; + return preg_replace_callback($post_regex, array($this, 'postFilterCallback'), $html); + } + + /** + * @param $url + * @return string + */ + protected function armorUrl($url) + { + return str_replace('--', '--', $url); + } + + /** + * @param array $matches + * @return string + */ + protected function postFilterCallback($matches) + { + $url = $this->armorUrl($matches[1]); + return '<object width="425" height="350" type="application/x-shockwave-flash" ' . + 'data="//www.youtube.com/' . $url . '">' . + '<param name="movie" value="//www.youtube.com/' . $url . '"></param>' . + '<!--[if IE]>' . + '<embed src="//www.youtube.com/' . $url . '"' . + 'type="application/x-shockwave-flash"' . + 'wmode="transparent" width="425" height="350" />' . + '<![endif]-->' . + '</object>'; + } +} + +// vim: et sw=4 sts=4 |