- global $wgWhitelistRead, $wgWhitelistReadRegexp, $wgRevokePermissions;
- static $useShortcut = null;
-
- # Initialize the $useShortcut boolean, to determine if we can skip quite a bit of code below
- if ( is_null( $useShortcut ) ) {
- $useShortcut = true;
- if ( !User::groupHasPermission( '*', 'read' ) ) {
- # Not a public wiki, so no shortcut
- $useShortcut = false;
- } elseif ( !empty( $wgRevokePermissions ) ) {
- /**
- * Iterate through each group with permissions being revoked (key not included since we don't care
- * what the group name is), then check if the read permission is being revoked. If it is, then
- * we don't use the shortcut below since the user might not be able to read, even though anon
- * reading is allowed.
- */
- foreach ( $wgRevokePermissions as $perms ) {
- if ( !empty( $perms['read'] ) ) {
- # We might be removing the read right from the user, so no shortcut
- $useShortcut = false;
- break;
- }
- }
- }
- }