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Embeds: Ensure that the title attribute is set correctly on embeds.

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git-svn-id: https://develop.svn.wordpress.org/trunk@47947 602fd350-edb4-49c9-b593-d223f7449a82
This commit is contained in:
Jake Spurlock
2020-06-10 16:34:18 +00:00
parent 4d506a300f
commit fe83aca573
3 changed files with 56 additions and 9 deletions
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29
src/wp-includes/embed.php
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@@ -806,11 +806,24 @@ function wp_filter_oembed_iframe_title_attribute( $result, $data, $url ) {
$title = ! empty( $data->title ) ? $data->title : '';
$pattern = '`<iframe[^>]*?title=(\\\\\'|\\\\"|[\'"])([^>]*?)\1`i';
$has_title_attr = preg_match( $pattern, $result, $matches );
$pattern = '`<iframe([^>]*)>`i';
if ( preg_match( $pattern, $result, $matches ) ) {
$attrs = wp_kses_hair( $matches[1], wp_allowed_protocols() );
if ( $has_title_attr && ! empty( $matches[2] ) ) {
$title = $matches[2];
foreach ( $attrs as $attr => $item ) {
$lower_attr = strtolower( $attr );
if ( $lower_attr === $attr ) {
continue;
}
if ( ! isset( $attrs[ $lower_attr ] ) ) {
$attrs[ $lower_attr ] = $item;
unset( $attrs[ $attr ] );
}
}
}
if ( ! empty( $attrs['title']['value'] ) ) {
$title = $attrs['title']['value'];
}
/**
@@ -829,11 +842,11 @@ function wp_filter_oembed_iframe_title_attribute( $result, $data, $url ) {
return $result;
}
if ( $has_title_attr ) {
// Remove the old title, $matches[1]: quote, $matches[2]: title attribute value.
$result = str_replace( ' title=' . $matches[1] . $matches[2] . $matches[1], '', $result );
if ( isset( $attrs['title'] ) ) {
unset( $attrs['title'] );
$attr_string = join( ' ', wp_list_pluck( $attrs, 'whole' ) );
$result = str_replace( $matches[0], '<iframe ' . trim( $attr_string ) . '>', $result );
}
return str_ireplace( '<iframe ', sprintf( '<iframe title="%s" ', esc_attr( $title ) ), $result );
}