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-rw-r--r--core/eventmanager2.lua6
-rw-r--r--core/stanza_router.lua9
-rw-r--r--plugins/mod_presence.lua265
3 files changed, 277 insertions, 3 deletions
diff --git a/core/eventmanager2.lua b/core/eventmanager2.lua
new file mode 100644
index 00000000..4783d0a9
--- /dev/null
+++ b/core/eventmanager2.lua
@@ -0,0 +1,6 @@
+
+local events = require "util.events".new();
+
+module "eventmanager"
+
+return events;
diff --git a/core/stanza_router.lua b/core/stanza_router.lua
index 08224c8d..f5a19307 100644
--- a/core/stanza_router.lua
+++ b/core/stanza_router.lua
@@ -24,9 +24,9 @@ local s2s_make_authenticated = require "core.s2smanager".make_authenticated;
local modules_handle_stanza = require "core.modulemanager".handle_stanza;
local component_handle_stanza = require "core.componentmanager".handle_stanza;
-local handle_outbound_presence_subscriptions_and_probes = require "core.presencemanager".handle_outbound_presence_subscriptions_and_probes;
-local handle_inbound_presence_subscriptions_and_probes = require "core.presencemanager".handle_inbound_presence_subscriptions_and_probes;
-local handle_normal_presence = require "core.presencemanager".handle_normal_presence;
+local handle_outbound_presence_subscriptions_and_probes = function()end;--require "core.presencemanager".handle_outbound_presence_subscriptions_and_probes;
+local handle_inbound_presence_subscriptions_and_probes = function()end;--require "core.presencemanager".handle_inbound_presence_subscriptions_and_probes;
+local handle_normal_presence = function()end;--require "core.presencemanager".handle_normal_presence;
local format = string.format;
local tostring = tostring;
@@ -40,6 +40,7 @@ local ipairs = ipairs;
local jid_split = require "util.jid".split;
local jid_prepped_split = require "util.jid".prepped_split;
local print = print;
+local fire_event = require "core.eventmanager2".fire_event;
local function checked_error_reply(origin, stanza)
if (stanza.attr.xmlns == "jabber:client" or stanza.attr.xmlns == "jabber:server") and stanza.attr.type ~= "error" and stanza.attr.type ~= "result" then
origin.send(st.error_reply(stanza, "cancel", "service-unavailable")); -- FIXME correct error?
@@ -100,6 +101,8 @@ function core_process_stanza(origin, stanza)
-- FIXME do stanzas not of jabber:client get handled by components?
if (origin.type == "s2sin" or origin.type == "c2s" or origin.type == "component") and (not xmlns or xmlns == "jabber:server" or xmlns == "jabber:client") then
+ local event_data = {origin=origin, stanza=stanza};
+ fire_event(tostring(host or origin.host).."/"..stanza.name, event_data);
if origin.type == "s2sin" and not origin.dummy then
local host_status = origin.hosts[from_host];
if not host_status or not host_status.authed then -- remote server trying to impersonate some other server?
diff --git a/plugins/mod_presence.lua b/plugins/mod_presence.lua
new file mode 100644
index 00000000..2e3c6b18
--- /dev/null
+++ b/plugins/mod_presence.lua
@@ -0,0 +1,265 @@
+-- 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.
+--
+
+
+
+local log = require "util.logger".init("mod_presence")
+
+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 jid_bare = require "util.jid".bare;
+local hosts = hosts;
+
+local rostermanager = require "core.rostermanager";
+local sessionmanager = require "core.sessionmanager";
+local offlinemanager = require "core.offlinemanager";
+
+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
+ 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
+ end
+ origin.priority = 0;
+ if stanza.attr.type == "unavailable" then
+ origin.presence = nil;
+ if origin.directed then
+ 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
+ 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("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
+
+local function presence_handler(data)
+ local origin, stanza = data.origin, data.stanza;
+ local to = stanza.attr.to;
+ local node, host = jid_split(to);
+ local to_bare = jid_bare(to);
+ local from_bare = jid_bare(stanza.attr.from);
+ if origin.type == "c2s" then
+ if to ~= nil and not(origin.roster[to_bare] and (origin.roster[to_bare].subscription == "both" or origin.roster[to_bare].subscription == "from")) then -- directed presence
+ origin.directed = origin.directed or {};
+ origin.directed[to] = true;
+ end
+ if stanza.attr.type ~= nil and stanza.attr.type ~= "unavailable" and stanza.attr.type ~= "error" then
+ handle_outbound_presence_subscriptions_and_probes(origin, stanza, from_bare, to_bare, core_route_stanza);
+ elseif not to then
+ handle_normal_presence(origin, stanza, core_route_stanza);
+ else
+ core_route_stanza(origin, stanza);
+ end
+ elseif (origin.type == "s2sin" or origin.type == "component") and hosts[host] then
+ if stanza.attr.type ~= nil and stanza.attr.type ~= "unavailable" and stanza.attr.type ~= "error" then
+ handle_inbound_presence_subscriptions_and_probes(origin, stanza, from_bare, to_bare, core_route_stanza);
+ else
+ core_route_stanza(origin, stanza);
+ end
+ end
+end
+
+local add_handler = require "core.eventmanager2".add_handler;
+local remove_handler = require "core.eventmanager2".remove_handler;
+
+add_handler(module:get_host().."/presence", presence_handler);
+module.unload = function()
+ remove_handler(module:get_host().."/presence", presence_handler);
+end
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-09 09:02:52 +0000