Changeset 59255 for trunk/src/wp-trackback.php

Timestamp:

10/18/2024 03:54:07 PM (7 weeks ago)

Author:

SergeyBiryukov

Message:

Pings/Trackbacks: Validate that the specified charset is available on the receiving site.

This aims to avoid a subsequent fatal error from mb_convert_encoding() when an invalid charset is specified.

Follow-up to [1734], [2563], [12032].

Props dd32, jrf, oglekler, rajinsharwar.
Fixes #60261.

File:

• trunk/src/wp-trackback.php (modified) (1 diff)

trunk/src/wp-trackback.php

@@ -61 +61 @@
 if ( $charset ) {
     $charset = str_replace( array( ',', ' ' ), '', strtoupper( trim( $charset ) ) );
-} else {
+
+    // Validate the specified "sender" charset is available on the receiving site.
+    if ( function_exists( 'mb_list_encodings' ) && ! in_array( $charset, mb_list_encodings(), true ) ) {
+        $charset = '';
+    }
+}
+
+if ( ! $charset ) {
     $charset = 'ASCII, UTF-8, ISO-8859-1, JIS, EUC-JP, SJIS';
 }