rostermanager: Optimisation to avoid unnecessarily loading rosters for offline contacts on probes, etc.
--- a/core/rostermanager.lua Sat May 29 02:08:56 2010 +0100
+++ b/core/rostermanager.lua Tue Jun 01 20:09:31 2010 +0100
@@ -190,7 +190,19 @@
end
end
+local function _get_online_roster_subscription(jidA, jidB)
+ local user = bare_sessions[jidA];
+ local item = user and (user.roster[jidB] or { subscription = "none" });
+ return item and item.subscription;
+end
function is_contact_subscribed(username, host, jid)
+ do
+ local selfjid = username.."@"..host;
+ local subscription = _get_online_roster_subscription(selfjid, jid);
+ if subscription then return (subscription == "both" or subscription == "from"); end
+ local subscription = _get_online_roster_subscription(jid, selfjid);
+ if subscription then return (subscription == "both" or subscription == "to"); end
+ end
local roster, err = load_roster(username, host);
local item = roster[jid];
return item and (item.subscription == "from" or item.subscription == "both"), err;