diff options
Diffstat (limited to 'extlib/HTMLPurifier/HTMLPurifier/AttrDef/CSS/URI.php')
-rw-r--r-- | extlib/HTMLPurifier/HTMLPurifier/AttrDef/CSS/URI.php | 56 |
1 files changed, 0 insertions, 56 deletions
diff --git a/extlib/HTMLPurifier/HTMLPurifier/AttrDef/CSS/URI.php b/extlib/HTMLPurifier/HTMLPurifier/AttrDef/CSS/URI.php deleted file mode 100644 index 435d7930b..000000000 --- a/extlib/HTMLPurifier/HTMLPurifier/AttrDef/CSS/URI.php +++ /dev/null @@ -1,56 +0,0 @@ -<?php - -/** - * Validates a URI in CSS syntax, which uses url('http://example.com') - * @note While theoretically speaking a URI in a CSS document could - * be non-embedded, as of CSS2 there is no such usage so we're - * generalizing it. This may need to be changed in the future. - * @warning Since HTMLPurifier_AttrDef_CSS blindly uses semicolons as - * the separator, you cannot put a literal semicolon in - * in the URI. Try percent encoding it, in that case. - */ -class HTMLPurifier_AttrDef_CSS_URI extends HTMLPurifier_AttrDef_URI -{ - - public function __construct() { - parent::__construct(true); // always embedded - } - - public function validate($uri_string, $config, $context) { - // parse the URI out of the string and then pass it onto - // the parent object - - $uri_string = $this->parseCDATA($uri_string); - if (strpos($uri_string, 'url(') !== 0) return false; - $uri_string = substr($uri_string, 4); - $new_length = strlen($uri_string) - 1; - if ($uri_string[$new_length] != ')') return false; - $uri = trim(substr($uri_string, 0, $new_length)); - - if (!empty($uri) && ($uri[0] == "'" || $uri[0] == '"')) { - $quote = $uri[0]; - $new_length = strlen($uri) - 1; - if ($uri[$new_length] !== $quote) return false; - $uri = substr($uri, 1, $new_length - 1); - } - - $keys = array( '(', ')', ',', ' ', '"', "'"); - $values = array('\\(', '\\)', '\\,', '\\ ', '\\"', "\\'"); - $uri = str_replace($values, $keys, $uri); - - $result = parent::validate($uri, $config, $context); - - if ($result === false) return false; - - // escape necessary characters according to CSS spec - // except for the comma, none of these should appear in the - // URI at all - $result = str_replace($keys, $values, $result); - - return "url($result)"; - - } - -} - -// vim: et sw=4 sts=4 |