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Introduce sanitize_trackback_urls(). Don't ping bad urls. Don't ping bad urls or save them to the DB. Props xknown, SergeyBiryukov. fixes #17560

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git-svn-id: https://develop.svn.wordpress.org/trunk@19675 602fd350-edb4-49c9-b593-d223f7449a82
This commit is contained in:
Ryan Boren
2012-01-04 19:45:13 +00:00
parent f6b0e7e580
commit 0f2274ee75
2 changed files with 21 additions and 2 deletions
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wp-includes/formatting.php
+19
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@@ -3002,4 +3002,23 @@ function sanitize_mime_type( $mime_type ) {
return apply_filters( 'sanitize_mime_type', $sani_mime_type, $mime_type );
}
/**
* Sanitize space or carriage return separated URLs that are used to send trackbacks.
*
* @since 3.4.0
*
* @param string $to_ping Space or carriage return separated URLs
* @return string URLs starting with the http or https protocol, separated by a carriage return.
*/
function sanitize_trackback_urls( $to_ping ) {
$urls_to_ping = preg_split( '/\r\n\t /', trim( $to_ping ), -1, PREG_SPLIT_NO_EMPTY );
foreach ( $urls_to_ping as $k => $url ) {
if ( !preg_match( '#^https?://.#i', $url ) )
unset( $urls_to_ping[$k] );
}
$urls_to_ping = array_map( 'esc_url_raw', $urls_to_ping );
$urls_to_ping = implode( "\n", $urls_to_ping );
return apply_filters( 'sanitize_trackback_urls', $urls_to_ping, $to_ping );
}
?>