Hashtags: 1MB limit for attempting to link (#544)

includes/class-hashtag.php

@@ -43,6 +43,10 @@ class Hashtag {
 	 * @return string the filtered post-content
 	 */
 	public static function the_content( $the_content ) {
+		// small protection against execution timeouts: limit to 1 MB
+		if ( mb_strlen( $the_content ) > MB_IN_BYTES ) {
+			return $the_content;
+		}
 		$tag_stack = array();
 		$protected_tags = array(
 			'pre',

readme.txt

@@ -110,6 +110,7 @@ Project maintained on GitHub at [automattic/wordpress-activitypub](https://githu
 * Improved: audio and video attachments are now supported!
 * Improved: better error messages if remote profile is not accessible
 * Improved: PHP 8.1 compatibility
+* Fixed: don't try to parse mentions or hashtags for very large (>1MB) posts to prevent timeouts
 
 = 1.0.10 =