From 338e84e122d4f63e338643ce91e0549487fb7f40 Mon Sep 17 00:00:00 2001
From: Aaron <aschulz@wikimedia.org>
Date: Mon, 27 Aug 2012 12:36:47 -0700
Subject: [PATCH] [FileBackend] Made Swift clear the auth cache on certain HTTP
 errors.

* This can handle when the auth token is expired sooner than expected.

Change-Id: I2e5ecc0adbde032b987af37dfe05a4aadb12b319
---
 includes/filebackend/SwiftFileBackend.php | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/includes/filebackend/SwiftFileBackend.php b/includes/filebackend/SwiftFileBackend.php
index f54f6667fe..38cd427dbd 100644
--- a/includes/filebackend/SwiftFileBackend.php
+++ b/includes/filebackend/SwiftFileBackend.php
@@ -1297,6 +1297,9 @@ class SwiftFileBackend extends FileBackendStore {
 		if ( $e->getMessage() ) {
 			trigger_error( "$func: " . $e->getMessage(), E_USER_WARNING );
 		}
+		if ( $e instanceof InvalidResponseException ) { // possibly a stale token
+			$this->srvCache->delete( $this->getCredsCacheKey( $this->auth->username ) );
+		}
 		wfDebugLog( 'SwiftBackend',
 			get_class( $e ) . " in '{$func}' (given '" . FormatJson::encode( $params ) . "')" .
 			( $e->getMessage() ? ": {$e->getMessage()}" : "" )
-- 
2.20.1