mod_tokenauth: Delete grants without tokens after period Generally it is expected that a grant would have at least one token as long as the grant is in active use. Refresh tokens issued by mod_http_oauth2 have a lifetime of one week by default, so the idea here is that if that refresh token expired and another week goes by without the grant being used, then the whole grant can be removed.

author: Kim Alvefur <zash@zash.se>
date: Mon, 16 Oct 2023 23:51:52 +0200
parent: 13272:8535a6105919
child: 13274:ddfe07041fc5
--- a/plugins/mod_tokenauth.lua	Mon Oct 09 20:28:37 2023 +0200
+++ b/plugins/mod_tokenauth.lua	Mon Oct 16 23:51:52 2023 +0200
@@ -9,6 +9,7 @@
 local token_store = module:open_store("auth_tokens", "keyval+");
 
 local access_time_granularity = module:get_option_period("token_auth_access_time_granularity", 60);
+local empty_grant_lifetime = module:get_option_period("tokenless_grant_ttl", "2w");
 
 local function select_role(username, host, role_name)
 	if not role_name then return end
@@ -171,6 +172,13 @@
 			grant.tokens[secret_hash] = nil;
 		end
 	end
+
+	if not grant.expires and next(grant.tokens) == nil and grant.accessed + empty_grant_lifetime < now then
+		module:log("debug", "Token grant has no tokens, discarding");
+		token_store:set_key(username, grant.id, nil);
+		return nil, "expired";
+	end
+
 	return grant;
 end