Ticket #41032: 41032.patch

src/wp-includes/rest-api.php

@@ -857 +857 @@
 }
 
 /**
- * Parses an RFC3339 time into a Unix timestamp.
+ * Parses an ISO8601 time into a Unix timestamp.
  *
  * @since 4.4.0
  *
- * @param string $date      RFC3339 timestamp.
+ * @param string $date      ISO8601 timestamp.
  * @param bool   $force_utc Optional. Whether to force UTC timezone instead of using
  *                          the timestamp's timezone. Default false.
  * @return int Unix timestamp.
@@ -871 +871 @@
                 $date = preg_replace( '/[+-]\d+:?\d+$/', '+00:00', $date );
         }
 
-        $regex = '#^\d{4}-\d{2}-\d{2}[Tt ]\d{2}:\d{2}:\d{2}(?:\.\d+)?(?:Z|[+-]\d{2}(?::\d{2})?)?$#';
+        $regex = '^([\+-]?\d{4}(?!\d{2}\b))((-?)((0[1-9]|1[0-2])
+                                                (\3([12]\d|0[1-9]|3[01]))?|W([0-4]\d|5[0-2])(-?[1-7])
+                                                ?|(00[1-9]|0[1-9]\d|[12]\d{2}|3([0-5]\d|6[1-6])))
+                                                ([T\s]((([01]\d|2[0-3])((:?)[0-5]\d)?|24\:?00)
+                                                ([\.,]\d+(?!:))?)?(\17[0-5]\d([\.,]\d+)?)?([zZ]|
+                                                ([\+-])([01]\d|2[0-3]):?([0-5]\d)?)?)?)?$';
 
         if ( ! preg_match( $regex, $date, $matches ) ) {
                 return false;