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Formatting: Improve `rel="nofollow"` handling in comments. 

Merges [44833] to the 4.6 branch.
Built from https://develop.svn.wordpress.org/branches/4.6@44839


git-svn-id: http://core.svn.wordpress.org/branches/4.6@44671 1a063a9b-81f0-0310-95a4-ce76da25c4cd
This commit is contained in:
Sergey Biryukov 2019-03-12 22:23:22 +00:00
parent c046ee1abd
commit f2daa0b4e6
1 changed files with 8 additions and 6 deletions
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14
wp-includes/formatting.php
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@ -2716,10 +2716,12 @@ function wp_rel_nofollow_callback( $matches ) {
$atts = shortcode_parse_atts( $matches[1] );
$rel = 'nofollow';
if ( preg_match( '%href=["\'](' . preg_quote( set_url_scheme( home_url(), 'http' ) ) . ')%i', $text ) ||
preg_match( '%href=["\'](' . preg_quote( set_url_scheme( home_url(), 'https' ) ) . ')%i', $text )
) {
return "<a $text>";
if ( ! empty( $atts['href'] ) ) {
if ( in_array( strtolower( wp_parse_url( $atts['href'], PHP_URL_SCHEME ) ), array( 'http', 'https' ), true ) ) {
if ( strtolower( wp_parse_url( $atts['href'], PHP_URL_HOST ) ) === strtolower( wp_parse_url( home_url(), PHP_URL_HOST ) ) ) {
return "<a $text>";
}
}
}
if ( ! empty( $atts['rel'] ) ) {
@ -2732,11 +2734,11 @@ function wp_rel_nofollow_callback( $matches ) {
$html = '';
foreach ( $atts as $name => $value ) {
$html .= "{$name}=\"$value\" ";
$html .= "{$name}=\"" . esc_attr( $value ) . "\" ";
}
$text = trim( $html );
}
return "<a $text rel=\"$rel\">";
return "<a $text rel=\"" . esc_attr( $rel ) . "\">";
}
/**