]+>.*?#i',
function( $m ) use ( &$protected_tags ) {
$c = count( $protected_tags );
$protect = '!#!#PROTECT' . $c . '#!#!';
$protected_tags[ $protect ] = $m[0];
return $protect;
},
$the_content
);
$the_content = \preg_replace_callback( '/@' . ACTIVITYPUB_USERNAME_REGEXP . '/', array( '\Activitypub\Mention', 'replace_with_links' ), $the_content );
$the_content = str_replace( array_keys( $protected_tags ), array_values( $protected_tags ), $the_content );
return $the_content;
}
/**
* A callback for preg_replace to build the user links
*
* @param array $result the preg_match results
* @return string the final string
*/
public static function replace_with_links( $result ) {
$metadata = \ActivityPub\get_remote_metadata_by_actor( $result[0] );
if ( ! is_wp_error( $metadata ) && ! empty( $metadata['url'] ) ) {
$username = ltrim( $result[0], '@' );
if ( ! empty( $metadata['name'] ) ) {
$username = $metadata['name'];
}
if ( ! empty( $metadata['preferredUsername'] ) ) {
$username = $metadata['preferredUsername'];
}
$username = '@' . $username . '';
return \sprintf( '%s', $metadata['url'], $username );
}
return $result[0];
}
/**
* Extract the mentions from the post_content.
*
* @param array $mentions The already found mentions.
* @param string $post_content The post content.
* @return mixed The discovered mentions.
*/
public static function extract_mentions( $mentions, $post_content ) {
\preg_match_all( '/@' . ACTIVITYPUB_USERNAME_REGEXP . '/i', $post_content, $matches );
foreach ( $matches[0] as $match ) {
$link = \Activitypub\Webfinger::resolve( $match );
if ( ! is_wp_error( $link ) ) {
$mentions[ $match ] = $link;
}
}
return $mentions;
}
}