--- Prosody IM v0.2
--- Copyright (C) 2008 Matthew Wild
--- Copyright (C) 2008 Waqas Hussain
+-- Prosody IM v0.4
+-- Copyright (C) 2008-2009 Matthew Wild
+-- Copyright (C) 2008-2009 Waqas Hussain
--
-- This project is MIT/X11 licensed. Please see the
-- COPYING file in the source package for more information.
--
-\r
-local log = require "util.logger".init("presencemanager")\r
-\r
-local require = require;\r
-local pairs, ipairs = pairs, ipairs;\r
-local t_concat = table.concat;\r
-local s_find = string.find;\r
-local tonumber = tonumber;\r
-\r
-local st = require "util.stanza";\r
-local jid_split = require "util.jid".split;\r
-local hosts = hosts;\r
-\r
-local rostermanager = require "core.rostermanager";\r
-local sessionmanager = require "core.sessionmanager";\r
-local offlinemanager = require "core.offlinemanager";\r
-\r
-module "presencemanager"\r
-\r
-function handle_presence(origin, stanza, from_bare, to_bare, core_route_stanza, inbound)\r
- local type = stanza.attr.type;\r
- if type and type ~= "unavailable" then\r
- if inbound then\r
- handle_inbound_presence_subscriptions_and_probes(origin, stanza, from_bare, to_bare, core_route_stanza);\r
- else\r
- handle_outbound_presence_subscriptions_and_probes(origin, stanza, from_bare, to_bare, core_route_stanza);\r
- end\r
- elseif not inbound and not stanza.attr.to then\r
- handle_normal_presence(origin, stanza, core_route_stanza);\r
- else\r
- core_route_stanza(origin, stanza);\r
- end\r
-end\r
-\r
-function handle_normal_presence(origin, stanza, core_route_stanza)\r
- if origin.roster then\r
- for jid in pairs(origin.roster) do -- broadcast to all interested contacts\r
- local subscription = origin.roster[jid].subscription;\r
- if subscription == "both" or subscription == "from" then\r
- stanza.attr.to = jid;\r
- core_route_stanza(origin, stanza);\r
- end\r
- end\r
- local node, host = jid_split(stanza.attr.from);\r
- for _, res in pairs(hosts[host].sessions[node].sessions) do -- broadcast to all resources\r
- if res ~= origin and res.full_jid then -- to resource. FIXME is res.full_jid the correct check? Maybe it should be res.presence\r
- stanza.attr.to = res.full_jid;\r
- core_route_stanza(origin, stanza);\r
- end\r
- end\r
- if stanza.attr.type == nil and not origin.presence then -- initial presence\r
- local probe = st.presence({from = origin.full_jid, type = "probe"});\r
- for jid in pairs(origin.roster) do -- probe all contacts we are subscribed to\r
- local subscription = origin.roster[jid].subscription;\r
- if subscription == "both" or subscription == "to" then\r
- probe.attr.to = jid;\r
- core_route_stanza(origin, probe);\r
- end\r
- end\r
- for _, res in pairs(hosts[host].sessions[node].sessions) do -- broadcast from all available resources\r
- if res ~= origin and res.presence then\r
- res.presence.attr.to = origin.full_jid;\r
- core_route_stanza(res, res.presence);\r
- res.presence.attr.to = nil;\r
- end\r
- end\r
- if origin.roster.pending then -- resend incoming subscription requests\r
- for jid in pairs(origin.roster.pending) do\r
- origin.send(st.presence({type="subscribe", from=jid})); -- TODO add to attribute? Use original?\r
- end\r
- end\r
- local request = st.presence({type="subscribe", from=origin.username.."@"..origin.host});\r
- for jid, item in pairs(origin.roster) do -- resend outgoing subscription requests\r
- if item.ask then\r
- request.attr.to = jid;\r
- core_route_stanza(origin, request);\r
- end\r
+
+local log = require "util.logger".init("presencemanager")
+
+local require = require;
+local pairs, ipairs = pairs, ipairs;
+local t_concat = table.concat;
+local s_find = string.find;
+local tonumber = tonumber;
+
+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";
+local offlinemanager = require "core.offlinemanager";
+
+module "presencemanager"
+
+function handle_presence(origin, stanza, from_bare, to_bare, core_route_stanza, inbound)
+ local type = stanza.attr.type;
+ if type and type ~= "unavailable" and type ~= "error" then
+ if inbound then
+ handle_inbound_presence_subscriptions_and_probes(origin, stanza, from_bare, to_bare, core_route_stanza);
+ else
+ handle_outbound_presence_subscriptions_and_probes(origin, stanza, from_bare, to_bare, core_route_stanza);
+ end
+ elseif not inbound and not stanza.attr.to then
+ handle_normal_presence(origin, stanza, core_route_stanza);
+ else
+ core_route_stanza(origin, stanza);
+ end
+end
+
+function handle_normal_presence(origin, stanza, core_route_stanza)
+ if origin.roster then
+ for jid in pairs(origin.roster) do -- broadcast to all interested contacts
+ local subscription = origin.roster[jid].subscription;
+ if subscription == "both" or subscription == "from" then
+ stanza.attr.to = jid;
+ core_route_stanza(origin, stanza);
+ end
+ end
+ local node, host = jid_split(stanza.attr.from);
+ for _, res in pairs(hosts[host].sessions[node].sessions) do -- broadcast to all resources
+ if res ~= origin and res.full_jid then -- to resource. FIXME is res.full_jid the correct check? Maybe it should be res.presence
+ stanza.attr.to = res.full_jid;
+ core_route_stanza(origin, stanza);
+ end
+ end
+ if stanza.attr.type == nil and not origin.presence then -- initial presence
+ local probe = st.presence({from = origin.full_jid, type = "probe"});
+ for jid in pairs(origin.roster) do -- probe all contacts we are subscribed to
+ local subscription = origin.roster[jid].subscription;
+ if subscription == "both" or subscription == "to" then
+ probe.attr.to = jid;
+ core_route_stanza(origin, probe);
+ end
+ end
+ for _, res in pairs(hosts[host].sessions[node].sessions) do -- broadcast from all available resources
+ if res ~= origin and res.presence then
+ res.presence.attr.to = origin.full_jid;
+ core_route_stanza(res, res.presence);
+ res.presence.attr.to = nil;
+ end
+ end
+ if origin.roster.pending then -- resend incoming subscription requests
+ for jid in pairs(origin.roster.pending) do
+ origin.send(st.presence({type="subscribe", from=jid})); -- TODO add to attribute? Use original?
+ end
+ end
+ local request = st.presence({type="subscribe", from=origin.username.."@"..origin.host});
+ for jid, item in pairs(origin.roster) do -- resend outgoing subscription requests
+ if item.ask then
+ request.attr.to = jid;
+ core_route_stanza(origin, request);
+ end
end
local offline = offlinemanager.load(node, host);
- if offline then\r
- for _, msg in ipairs(offline) do\r
- origin.send(msg); -- FIXME do we need to modify to/from in any way?\r
- end\r
+ if offline then
+ for _, msg in ipairs(offline) do
+ origin.send(msg); -- FIXME do we need to modify to/from in any way?
+ end
offlinemanager.deleteAll(node, host);
- end\r
- end\r
- origin.priority = 0;\r
- if stanza.attr.type == "unavailable" then\r
+ end
+ end
+ origin.priority = 0;
+ if stanza.attr.type == "unavailable" then
origin.presence = nil;
if origin.directed then
- for _, jid in ipairs(origin.directed) do
+ local old_from = stanza.attr.from;
+ stanza.attr.from = origin.full_jid;
+ for jid in pairs(origin.directed) do
stanza.attr.to = jid;
core_route_stanza(origin, stanza);
end
+ stanza.attr.from = old_from;
origin.directed = nil;
- end\r
- else\r
- origin.presence = stanza;\r
- local priority = stanza:child_with_name("priority");\r
- if priority and #priority > 0 then\r
- priority = t_concat(priority);\r
- if s_find(priority, "^[+-]?[0-9]+$") then\r
- priority = tonumber(priority);\r
- if priority < -128 then priority = -128 end\r
- if priority > 127 then priority = 127 end\r
- origin.priority = priority;\r
- end\r
- end\r
- end\r
- stanza.attr.to = nil; -- reset it\r
- else\r
- log("error", "presence recieved from client with no roster");\r
- end\r
-end\r
-\r
-function send_presence_of_available_resources(user, host, jid, recipient_session, core_route_stanza)\r
- local h = hosts[host];\r
- local count = 0;\r
- if h and h.type == "local" then\r
- local u = h.sessions[user];\r
- if u then\r
- for k, session in pairs(u.sessions) do\r
- local pres = session.presence;\r
- if pres then\r
- pres.attr.to = jid;\r
- pres.attr.from = session.full_jid;\r
- core_route_stanza(session, pres);\r
- pres.attr.to = nil;\r
- pres.attr.from = nil;\r
- count = count + 1;\r
- end\r
- end\r
- end\r
- end\r
- log("info", "broadcasted presence of "..count.." resources from "..user.."@"..host.." to "..jid);\r
- return count;\r
-end\r
-\r
-function handle_outbound_presence_subscriptions_and_probes(origin, stanza, from_bare, to_bare, core_route_stanza)\r
- local node, host = jid_split(from_bare);\r
- local st_from, st_to = stanza.attr.from, stanza.attr.to;\r
- stanza.attr.from, stanza.attr.to = from_bare, to_bare;\r
- log("debug", "outbound presence "..stanza.attr.type.." from "..from_bare.." for "..to_bare);\r
- if stanza.attr.type == "subscribe" then\r
- -- 1. route stanza\r
- -- 2. roster push (subscription = none, ask = subscribe)\r
- if rostermanager.set_contact_pending_out(node, host, to_bare) then\r
- rostermanager.roster_push(node, host, to_bare);\r
- end -- else file error\r
- core_route_stanza(origin, stanza);\r
- elseif stanza.attr.type == "unsubscribe" then\r
- -- 1. route stanza\r
- -- 2. roster push (subscription = none or from)\r
- if rostermanager.unsubscribe(node, host, to_bare) then\r
- rostermanager.roster_push(node, host, to_bare); -- FIXME do roster push when roster has in fact not changed?\r
- end -- else file error\r
- core_route_stanza(origin, stanza);\r
- elseif stanza.attr.type == "subscribed" then\r
- -- 1. route stanza\r
- -- 2. roster_push ()\r
- -- 3. send_presence_of_available_resources\r
- if rostermanager.subscribed(node, host, to_bare) then\r
- rostermanager.roster_push(node, host, to_bare);\r
- end\r
- core_route_stanza(origin, stanza);\r
- send_presence_of_available_resources(node, host, to_bare, origin, core_route_stanza);\r
- elseif stanza.attr.type == "unsubscribed" then\r
- -- 1. route stanza\r
- -- 2. roster push (subscription = none or to)\r
- if rostermanager.unsubscribed(node, host, to_bare) then\r
- rostermanager.roster_push(node, host, to_bare);\r
- end\r
- core_route_stanza(origin, stanza);\r
- end\r
- stanza.attr.from, stanza.attr.to = st_from, st_to;\r
-end\r
-\r
-function handle_inbound_presence_subscriptions_and_probes(origin, stanza, from_bare, to_bare, core_route_stanza)\r
- local node, host = jid_split(to_bare);\r
- local st_from, st_to = stanza.attr.from, stanza.attr.to;\r
- stanza.attr.from, stanza.attr.to = from_bare, to_bare;\r
- log("debug", "inbound presence "..stanza.attr.type.." from "..from_bare.." for "..to_bare);\r
- if stanza.attr.type == "probe" then\r
- if rostermanager.is_contact_subscribed(node, host, from_bare) then\r
- if 0 == send_presence_of_available_resources(node, host, from_bare, origin, core_route_stanza) then\r
- -- TODO send last recieved unavailable presence (or we MAY do nothing, which is fine too)\r
- end\r
- else\r
- core_route_stanza(origin, st.presence({from=to_bare, to=from_bare, type="unsubscribed"}));\r
- end\r
- elseif stanza.attr.type == "subscribe" then\r
- if rostermanager.is_contact_subscribed(node, host, from_bare) then\r
- core_route_stanza(origin, st.presence({from=to_bare, to=from_bare, type="subscribed"})); -- already subscribed\r
- -- Sending presence is not clearly stated in the RFC, but it seems appropriate\r
- if 0 == send_presence_of_available_resources(node, host, from_bare, origin, core_route_stanza) then\r
- -- TODO send last recieved unavailable presence (or we MAY do nothing, which is fine too)\r
- end\r
- else\r
- if not rostermanager.is_contact_pending_in(node, host, from_bare) then\r
- if rostermanager.set_contact_pending_in(node, host, from_bare) then\r
- sessionmanager.send_to_available_resources(node, host, stanza);\r
- end -- TODO else return error, unable to save\r
- end\r
- end\r
- elseif stanza.attr.type == "unsubscribe" then\r
- if rostermanager.process_inbound_unsubscribe(node, host, from_bare) then\r
- rostermanager.roster_push(node, host, from_bare);\r
- end\r
- elseif stanza.attr.type == "subscribed" then\r
- if rostermanager.process_inbound_subscription_approval(node, host, from_bare) then\r
- rostermanager.roster_push(node, host, from_bare);\r
- end\r
- elseif stanza.attr.type == "unsubscribed" then\r
- if rostermanager.process_inbound_subscription_cancellation(node, host, from_bare) then\r
- rostermanager.roster_push(node, host, from_bare);\r
- end\r
- end -- discard any other type\r
- stanza.attr.from, stanza.attr.to = st_from, st_to;\r
-end\r
-\r
-return _M;\r
+ end
+ else
+ origin.presence = stanza;
+ local priority = stanza:child_with_name("priority");
+ if priority and #priority > 0 then
+ priority = t_concat(priority);
+ if s_find(priority, "^[+-]?[0-9]+$") then
+ priority = tonumber(priority);
+ if priority < -128 then priority = -128 end
+ if priority > 127 then priority = 127 end
+ origin.priority = priority;
+ end
+ end
+ end
+ stanza.attr.to = nil; -- reset it
+ else
+ log("error", "presence recieved from client with no roster");
+ end
+end
+
+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("debug", "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;
projects / prosody.git / blobdiff