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Add kses protocol checking to clean_url. Props Andy. fixes #3515 

git-svn-id: https://develop.svn.wordpress.org/trunk@4672 602fd350-edb4-49c9-b593-d223f7449a82
This commit is contained in:
Ryan Boren 2007-01-02 21:22:41 +00:00
parent 29d5c032ce
commit c34c29d935
1 changed files with 5 additions and 1 deletions
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6
wp-includes/formatting.php
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@ -1056,7 +1056,7 @@ function wp_richedit_pre($text) {
return apply_filters('richedit_pre', $output);
}
function clean_url( $url ) {
function clean_url( $url, $protocols = null ) {
if ('' == $url) return $url;
$url = preg_replace('|[^a-z0-9-~+_.?#=!&;,/:%]|i', '', $url);
$strip = array('%0d', '%0a');
@ -1064,6 +1064,10 @@ function clean_url( $url ) {
$url = str_replace(';//', '://', $url);
$url = (!strstr($url, '://')) ? 'http://'.$url : $url;
$url = preg_replace('/&([^#])(?![a-z]{2,8};)/', '&$1', $url);
if ( !is_array($protocols) )
$protocols = array('http', 'https', 'ftp', 'ftps', 'mailto', 'news', 'irc', 'gopher', 'nntp', 'feed', 'telnet');
if ( wp_kses_bad_protocol( $url, $protocols ) != $url )
return '';
return $url;
}