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local log = require "util.logger".init("presencemanager")
local require = require;
local pairs = pairs;
local st = require "util.stanza";
local jid_split = require "util.jid".split;
local hosts = hosts;
local rostermanager = require "core.rostermanager";
local sessionmanager = require "core.sessionmanager";
module "presencemanager"
function send_presence_of_available_resources(user, host, jid, recipient_session, core_route_stanza)
local h = hosts[host];
local count = 0;
if h and h.type == "local" then
local u = h.sessions[user];
if u then
for k, session in pairs(u.sessions) do
local pres = session.presence;
if pres then
pres.attr.to = jid;
pres.attr.from = session.full_jid;
core_route_stanza(session, pres);
pres.attr.to = nil;
pres.attr.from = nil;
count = count + 1;
end
end
end
end
log("info", "broadcasted presence of "..count.." resources from "..user.."@"..host.." to "..jid);
return count;
end
function handle_outbound_presence_subscriptions_and_probes(origin, stanza, from_bare, to_bare, core_route_stanza)
local node, host = jid_split(from_bare);
local st_from, st_to = stanza.attr.from, stanza.attr.to;
stanza.attr.from, stanza.attr.to = from_bare, to_bare;
log("debug", "outbound presence "..stanza.attr.type.." from "..from_bare.." for "..to_bare);
if stanza.attr.type == "subscribe" then
-- 1. route stanza
-- 2. roster push (subscription = none, ask = subscribe)
if rostermanager.set_contact_pending_out(node, host, to_bare) then
rostermanager.roster_push(node, host, to_bare);
end -- else file error
core_route_stanza(origin, stanza);
elseif stanza.attr.type == "unsubscribe" then
-- 1. route stanza
-- 2. roster push (subscription = none or from)
if rostermanager.unsubscribe(node, host, to_bare) then
rostermanager.roster_push(node, host, to_bare); -- FIXME do roster push when roster has in fact not changed?
end -- else file error
core_route_stanza(origin, stanza);
elseif stanza.attr.type == "subscribed" then
-- 1. route stanza
-- 2. roster_push ()
-- 3. send_presence_of_available_resources
if rostermanager.subscribed(node, host, to_bare) then
rostermanager.roster_push(node, host, to_bare);
end
core_route_stanza(origin, stanza);
send_presence_of_available_resources(node, host, to_bare, origin, core_route_stanza);
elseif stanza.attr.type == "unsubscribed" then
-- 1. route stanza
-- 2. roster push (subscription = none or to)
if rostermanager.unsubscribed(node, host, to_bare) then
rostermanager.roster_push(node, host, to_bare);
end
core_route_stanza(origin, stanza);
end
stanza.attr.from, stanza.attr.to = st_from, st_to;
end
function handle_inbound_presence_subscriptions_and_probes(origin, stanza, from_bare, to_bare, core_route_stanza)
local node, host = jid_split(to_bare);
local st_from, st_to = stanza.attr.from, stanza.attr.to;
stanza.attr.from, stanza.attr.to = from_bare, to_bare;
log("debug", "inbound presence "..stanza.attr.type.." from "..from_bare.." for "..to_bare);
if stanza.attr.type == "probe" then
if rostermanager.is_contact_subscribed(node, host, from_bare) then
if 0 == send_presence_of_available_resources(node, host, from_bare, origin, core_route_stanza) then
-- TODO send last recieved unavailable presence (or we MAY do nothing, which is fine too)
end
else
core_route_stanza(origin, st.presence({from=to_bare, to=from_bare, type="unsubscribed"}));
end
elseif stanza.attr.type == "subscribe" then
if rostermanager.is_contact_subscribed(node, host, from_bare) then
core_route_stanza(origin, st.presence({from=to_bare, to=from_bare, type="subscribed"})); -- already subscribed
-- Sending presence is not clearly stated in the RFC, but it seems appropriate
if 0 == send_presence_of_available_resources(node, host, from_bare, origin, core_route_stanza) then
-- TODO send last recieved unavailable presence (or we MAY do nothing, which is fine too)
end
else
if not rostermanager.is_contact_pending_in(node, host, from_bare) then
if rostermanager.set_contact_pending_in(node, host, from_bare) then
sessionmanager.send_to_available_resources(node, host, stanza);
end -- TODO else return error, unable to save
end
end
elseif stanza.attr.type == "unsubscribe" then
if rostermanager.process_inbound_unsubscribe(node, host, from_bare) then
rostermanager.roster_push(node, host, from_bare);
end
elseif stanza.attr.type == "subscribed" then
if rostermanager.process_inbound_subscription_approval(node, host, from_bare) then
rostermanager.roster_push(node, host, from_bare);
end
elseif stanza.attr.type == "unsubscribed" then
if rostermanager.process_inbound_subscription_cancellation(node, host, from_bare) then
rostermanager.roster_push(node, host, from_bare);
end
end -- discard any other type
stanza.attr.from, stanza.attr.to = st_from, st_to;
end
return _M;
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