Users: Return a `WP_Error` from `wp_insert_user()` if the `user_url` field is too long.

The `user_url` database field only allows up to 100 characters, and if the value is longer than that, the function should return a proper error message instead of silently failing.

This complements similar checks for `user_login` and `user_nicename` fields.

Follow-up to [45], [1575], [32299], [34218], [34626].

Props mkox, sabernhardt, tszming, SergeyBiryukov.
Fixes #44107.
Built from https://develop.svn.wordpress.org/trunk@52650


git-svn-id: http://core.svn.wordpress.org/trunk@52239 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-includes/user.php

@@ -2043,6 +2043,10 @@ function wp_insert_user( $userdata ) {
 	 */
 	$user_url = apply_filters( 'pre_user_url', $raw_user_url );
 
+	if ( mb_strlen( $user_url ) > 100 ) {
+		return new WP_Error( 'user_url_too_long', __( 'User URL may not be longer than 100 characters.' ) );
+	}
+
 	$user_registered = empty( $userdata['user_registered'] ) ? gmdate( 'Y-m-d H:i:s' ) : $userdata['user_registered'];
 
 	$user_activation_key = empty( $userdata['user_activation_key'] ) ? '' : $userdata['user_activation_key'];

wp-includes/version.php

@@ -16,7 +16,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '6.0-alpha-52649';
+$wp_version = '6.0-alpha-52650';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.