# HG changeset patch # User Matthew Wild # Date 1679835964 -3600 # Node ID e385f3a0667391fd70b39c27ecb3f8fdca97ef34 # Parent 5625da6ae6b65e4c4700abe8b2f81e79cea8650e moduleapi: Add 'peek' to :may() and new :could() helper to suppress logging The current method logs scary "access denied" messages on failure - this is generally very useful when debugging access control stuff, but in some cases the call is simply a check to see if someone *could* perform an action, even if they haven't requested it yet. One example is determining whether to show the user as an admin in disco. The 'peek' parameter, if true, will suppress such logging. The :could() method is just a simple helper that can make the calling code a bit more readable (suggested by Zash). diff -r 5625da6ae6b6 -r e385f3a06673 core/moduleapi.lua --- a/core/moduleapi.lua Sat Mar 25 19:38:41 2023 +0000 +++ b/core/moduleapi.lua Sun Mar 26 14:06:04 2023 +0100 @@ -626,7 +626,11 @@ end end -function api:may(action, context) +function api:could(action, context) + return self:may(action, context, true); +end + +function api:may(action, context, peek) if action:byte(1) == 58 then -- action begins with ':' action = self.name..action; -- prepend module name end @@ -639,12 +643,16 @@ role = hosts[self.host].authz.get_jid_role(context); end if not role then - self:log("debug", "Access denied: JID <%s> may not %s (no role found)", context, action); + if not peek then + self:log("debug", "Access denied: JID <%s> may not %s (no role found)", context, action); + end return false; end local permit = role:may(action); if not permit then - self:log("debug", "Access denied: JID <%s> may not %s (not permitted by role %s)", context, action, role.name); + if not peek then + self:log("debug", "Access denied: JID <%s> may not %s (not permitted by role %s)", context, action, role.name); + end end return permit; end @@ -656,11 +664,13 @@ if session.type == "c2s" and session.host == self.host then local role = session.role; if not role then - self:log("warn", "Access denied: session %s has no role assigned"); + if not peek then + self:log("warn", "Access denied: session %s has no role assigned"); + end return false; end local permit = role:may(action, context); - if not permit then + if not permit and not peek then self:log("debug", "Access denied: session %s (%s) may not %s (not permitted by role %s)", session.id, session.full_jid, action, role.name ); @@ -670,11 +680,13 @@ local actor_jid = context.stanza.attr.from; local role = hosts[self.host].authz.get_jid_role(actor_jid); if not role then - self:log("debug", "Access denied: JID <%s> may not %s (no role found)", actor_jid, action); + if not peek then + self:log("debug", "Access denied: JID <%s> may not %s (no role found)", actor_jid, action); + end return false; end local permit = role:may(action, context); - if not permit then + if not permit and not peek then self:log("debug", "Access denied: JID <%s> may not %s (not permitted by role %s)", actor_jid, action, role.name); end return permit;