extauth_cache can have value 0

diff --git a/src/ejabberd_auth_external.erl b/src/ejabberd_auth_external.erl
index 9ae6c90810195b61a1ab7a4121881c6a00385273..17944b65036a63799f5ce443f8e6069f2cd12f4a 100644 (file)
--- a/src/ejabberd_auth_external.erl
+++ b/src/ejabberd_auth_external.erl
@@ -173,7 +173,7 @@ get_cache_option(Host) ->
     case ejabberd_config:get_option(
            {extauth_cache, Host},
            fun(false) -> undefined;
-              (I) when is_integer(I), I > 0 -> I
+              (I) when is_integer(I), I >= 0 -> I
            end) of
         undefined -> false;
         CacheTime -> {true, CacheTime}