mod_restrict_xmpp: Treat archive query as a read despite using iq-set
XEP-0313 uses iq-set to initiate a query, but unlike many other uses of
iq-set, this does not mutate anything on the server, so it should not be
treated as a write request.
local jid_split = require "util.jid".split;
local jid_bare = require "util.jid".bare;
local load_roster = require "core.rostermanager".load_roster;
local blocked_servers = module:get_option_set("block_s2s_subscriptions")._items;
function filter_presence(event)
if blocked_servers[event.origin.from_host] and event.stanza.attr.type == "subscribe" then
local stanza = event.stanza;
local to_user, to_host = jid_split(stanza.attr.to);
local roster = load_roster(to_user, to_host);
if roster and roster[jid_bare(stanza.attr.from)] then
return; -- In roster, pass through
end
return true; -- Drop
end
end
module:hook("presence/bare", filter_presence, 200); -- Client receiving