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Handle multiple feed: schemes. 

git-svn-id: http://svn.automattic.com/wordpress/trunk@20540 1a063a9b-81f0-0310-95a4-ce76da25c4cd
This commit is contained in:
nacin 2012-04-19 21:48:12 +00:00
parent b7e407cce8
commit a7ef8337be
1 changed files with 20 additions and 7 deletions
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27
wp-includes/kses.php
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@ -975,12 +975,15 @@ function wp_kses_check_attr_val($value, $vless, $checkname, $checkvalue) {
*/
function wp_kses_bad_protocol($string, $allowed_protocols) {
$string = wp_kses_no_null($string);
$string2 = $string.'a';
$iterations = 0;
while ($string != $string2) {
$string2 = $string;
do {
$original_string = $string;
$string = wp_kses_bad_protocol_once($string, $allowed_protocols);
} # while
} while ( $original_string != $string && ++$iterations < 6 );
if ( $original_string != $string )
return '';
return $string;
}
@ -1079,10 +1082,20 @@ function wp_kses_html_error($string) {
* @param string $allowed_protocols Allowed protocols
* @return string Sanitized content
*/
function wp_kses_bad_protocol_once($string, $allowed_protocols) {
function wp_kses_bad_protocol_once($string, $allowed_protocols, $count = 1 ) {
$string2 = preg_split( '/:|&#0*58;|&#x0*3a;/i', $string, 2 );
if ( isset($string2[1]) && ! preg_match('%/\?%', $string2[0]) )
$string = wp_kses_bad_protocol_once2( $string2[0], $allowed_protocols ) . trim( $string2[1] );
if ( isset($string2[1]) && ! preg_match('%/\?%', $string2[0]) ) {
$string = trim( $string2[1] );
$protocol = wp_kses_bad_protocol_once2( $string2[0], $allowed_protocols );
if ( 'feed:' == $protocol ) {
if ( $count > 2 )
return '';
$string = wp_kses_bad_protocol_once( $string, $allowed_protocols, ++$count );
if ( empty( $string ) )
return $string;
}
$string = $protocol . $string;
}
return $string;
}