WPDB: Check that AUTH_SALT is not empty, Fix a PHP notice when AUTH_SALT is undefined.

Props jsonfry, mkomar, pento.
Merges [42119] and [42120] to the 4.4 branch.
Fixes #42431 and #42401 for 4.4.

Built from https://develop.svn.wordpress.org/branches/4.4@42234


git-svn-id: http://core.svn.wordpress.org/branches/4.4@42063 1a063a9b-81f0-0310-95a4-ce76da25c4cd
This commit is contained in:
Dion Hulse 2017-11-27 01:11:03 +00:00
parent fa59d4b446
commit 5da6b7c200

View File

@ -1896,7 +1896,7 @@ class wpdb {
// If ext/hash is not present, compat.php's hash_hmac() does not support sha256.
$algo = function_exists( 'hash' ) ? 'sha256' : 'sha1';
// Old WP installs may not have AUTH_SALT defined.
$salt = defined( 'AUTH_SALT' ) ? AUTH_SALT : rand();
$salt = defined( 'AUTH_SALT' ) && AUTH_SALT ? AUTH_SALT : (string) rand();
$placeholder = '{' . hash_hmac( $algo, uniqid( $salt, true ), $salt ) . '}';
}