X-Git-Url: https://git.arvados.org/arvados.git/blobdiff_plain/7c7dc19ffa0a20fff6d97e51c874bfaca9596b24..ca06cfbda0e84d469f7810a280cfa4dfa8997260:/sdk/go/keepclient/keepclient.go

diff --git a/sdk/go/keepclient/keepclient.go b/sdk/go/keepclient/keepclient.go
index 029c6ee7f3..cbfad8177d 100644
--- a/sdk/go/keepclient/keepclient.go
+++ b/sdk/go/keepclient/keepclient.go
@@ -1,3 +1,7 @@
+// Copyright (C) The Arvados Authors. All rights reserved.
+//
+// SPDX-License-Identifier: Apache-2.0
+
 /* Provides low-level Get/Put primitives for accessing Arvados Keep blocks. */
 package keepclient
 
@@ -242,6 +246,10 @@ func (kc *KeepClient) getOrHead(method string, locator string) (io.ReadCloser, i
 				} else if resp.StatusCode == 404 {
 					count404++
 				}
+			} else if resp.ContentLength < 0 {
+				// Missing Content-Length
+				resp.Body.Close()
+				return nil, 0, "", fmt.Errorf("Missing Content-Length of block")
 			} else {
 				// Success.
 				if method == "GET" {
@@ -430,6 +438,10 @@ func (kc *KeepClient) cache() *BlockCache {
 	}
 }
 
+func (kc *KeepClient) ClearBlockCache() {
+	kc.cache().Clear()
+}
+
 var (
 	// There are four global http.Client objects for the four
 	// possible permutations of TLS behavior (verify/skip-verify)