diff options
Diffstat (limited to 'plugins')
| -rw-r--r-- | plugins/mod_cloud_notify.lua | 653 |
1 files changed, 653 insertions, 0 deletions
diff --git a/plugins/mod_cloud_notify.lua b/plugins/mod_cloud_notify.lua new file mode 100644 index 00000000..987be84f --- /dev/null +++ b/plugins/mod_cloud_notify.lua @@ -0,0 +1,653 @@ +-- XEP-0357: Push (aka: My mobile OS vendor won't let me have persistent TCP connections) +-- Copyright (C) 2015-2016 Kim Alvefur +-- Copyright (C) 2017-2019 Thilo Molitor +-- +-- This file is MIT/X11 licensed. + +local os_time = os.time; +local st = require"util.stanza"; +local jid = require"util.jid"; +local dataform = require"util.dataforms".new; +local hashes = require"util.hashes"; +local random = require"util.random"; +local cache = require"util.cache"; +local watchdog = require "util.watchdog"; + +local xmlns_push = "urn:xmpp:push:0"; + +-- configuration +local include_body = module:get_option_boolean("push_notification_with_body", false); +local include_sender = module:get_option_boolean("push_notification_with_sender", false); +local max_push_errors = module:get_option_number("push_max_errors", 16); +local max_push_devices = module:get_option_number("push_max_devices", 5); +local dummy_body = module:get_option_string("push_notification_important_body", "New Message!"); +local extended_hibernation_timeout = module:get_option_number("push_max_hibernation_timeout", 72*3600); -- use same timeout like ejabberd + +local host_sessions = prosody.hosts[module.host].sessions; +local push_errors = module:shared("push_errors"); +local id2node = {}; +local id2identifier = {}; + +-- For keeping state across reloads while caching reads +-- This uses util.cache for caching the most recent devices and removing all old devices when max_push_devices is reached +local push_store = (function() + local store = module:open_store(); + local push_services = {}; + local api = {}; + --luacheck: ignore 212/self + function api:get(user) + if not push_services[user] then + local loaded, err = store:get(user); + if not loaded and err then + module:log("warn", "Error reading push notification storage for user '%s': %s", user, tostring(err)); + push_services[user] = cache.new(max_push_devices):table(); + return push_services[user], false; + end + if loaded then + push_services[user] = cache.new(max_push_devices):table(); + -- copy over plain table loaded from disk into our cache + for k, v in pairs(loaded) do push_services[user][k] = v; end + else + push_services[user] = cache.new(max_push_devices):table(); + end + end + return push_services[user], true; + end + function api:flush_to_disk(user) + local plain_table = {}; + for k, v in pairs(push_services[user]) do plain_table[k] = v; end + local ok, err = store:set(user, plain_table); + if not ok then + module:log("error", "Error writing push notification storage for user '%s': %s", user, tostring(err)); + return false; + end + return true; + end + function api:set_identifier(user, push_identifier, data) + local services = self:get(user); + services[push_identifier] = data; + end + return api; +end)(); + + +-- Forward declarations, as both functions need to reference each other +local handle_push_success, handle_push_error; + +function handle_push_error(event) + local stanza = event.stanza; + local error_type, condition, error_text = stanza:get_error(); + local node = id2node[stanza.attr.id]; + local identifier = id2identifier[stanza.attr.id]; + if node == nil then + module:log("warn", "Received push error with unrecognised id: %s", stanza.attr.id); + return false; -- unknown stanza? Ignore for now! + end + local from = stanza.attr.from; + local user_push_services = push_store:get(node); + local found, changed = false, false; + + for push_identifier, _ in pairs(user_push_services) do + if push_identifier == identifier then + found = true; + if user_push_services[push_identifier] and user_push_services[push_identifier].jid == from and error_type ~= "wait" then + push_errors[push_identifier] = push_errors[push_identifier] + 1; + module:log("info", "Got error <%s:%s:%s> for identifier '%s': " + .."error count for this identifier is now at %s", error_type, condition, error_text or "", push_identifier, + tostring(push_errors[push_identifier])); + if push_errors[push_identifier] >= max_push_errors then + module:log("warn", "Disabling push notifications for identifier '%s'", push_identifier); + -- remove push settings from sessions + if host_sessions[node] then + for _, session in pairs(host_sessions[node].sessions) do + if session.push_identifier == push_identifier then + session.push_identifier = nil; + session.push_settings = nil; + session.first_hibernated_push = nil; + -- check for prosody 0.12 mod_smacks + if session.hibernating_watchdog and session.original_smacks_callback and session.original_smacks_timeout then + -- restore old smacks watchdog + session.hibernating_watchdog:cancel(); + session.hibernating_watchdog = watchdog.new(session.original_smacks_timeout, session.original_smacks_callback); + end + end + end + end + -- save changed global config + changed = true; + user_push_services[push_identifier] = nil + push_errors[push_identifier] = nil; + -- unhook iq handlers for this identifier (if possible) + module:unhook("iq-error/host/"..stanza.attr.id, handle_push_error); + module:unhook("iq-result/host/"..stanza.attr.id, handle_push_success); + id2node[stanza.attr.id] = nil; + id2identifier[stanza.attr.id] = nil; + end + elseif user_push_services[push_identifier] and user_push_services[push_identifier].jid == from and error_type == "wait" then + module:log("debug", "Got error <%s:%s:%s> for identifier '%s': " + .."NOT increasing error count for this identifier", error_type, condition, error_text or "", push_identifier); + else + module:log("debug", "Unhandled push error <%s:%s:%s> from %s for identifier '%s'", + error_type, condition, error_text or "", from, push_identifier + ); + end + end + end + if changed then + push_store:flush_to_disk(node); + elseif not found then + module:log("warn", "Unable to find matching registration for push error <%s:%s:%s> from %s", error_type, condition, error_text or "", from); + end + return true; +end + +function handle_push_success(event) + local stanza = event.stanza; + local node = id2node[stanza.attr.id]; + local identifier = id2identifier[stanza.attr.id]; + if node == nil then return false; end -- unknown stanza? Ignore for now! + local from = stanza.attr.from; + local user_push_services = push_store:get(node); + + for push_identifier, _ in pairs(user_push_services) do + if push_identifier == identifier then + if user_push_services[push_identifier] and user_push_services[push_identifier].jid == from and push_errors[push_identifier] > 0 then + push_errors[push_identifier] = 0; + -- unhook iq handlers for this identifier (if possible) + module:unhook("iq-error/host/"..stanza.attr.id, handle_push_error); + module:unhook("iq-result/host/"..stanza.attr.id, handle_push_success); + id2node[stanza.attr.id] = nil; + id2identifier[stanza.attr.id] = nil; + module:log("debug", "Push succeeded, error count for identifier '%s' is now at %s again", + push_identifier, tostring(push_errors[push_identifier]) + ); + end + end + end + return true; +end + +-- http://xmpp.org/extensions/xep-0357.html#disco +local function account_dico_info(event) + (event.reply or event.stanza):tag("feature", {var=xmlns_push}):up(); +end +module:hook("account-disco-info", account_dico_info); + +-- http://xmpp.org/extensions/xep-0357.html#enabling +local function push_enable(event) + local origin, stanza = event.origin, event.stanza; + local enable = stanza.tags[1]; + origin.log("debug", "Attempting to enable push notifications"); + -- MUST contain a 'jid' attribute of the XMPP Push Service being enabled + local push_jid = enable.attr.jid; + -- SHOULD contain a 'node' attribute + local push_node = enable.attr.node; + -- CAN contain a 'include_payload' attribute + local include_payload = enable.attr.include_payload; + if not push_jid then + origin.log("debug", "Push notification enable request missing the 'jid' field"); + origin.send(st.error_reply(stanza, "modify", "bad-request", "Missing jid")); + return true; + end + if push_jid == stanza.attr.from then + origin.log("debug", "Push notification enable request 'jid' field identical to our own"); + origin.send(st.error_reply(stanza, "modify", "bad-request", "JID must be different from ours")); + return true; + end + local publish_options = enable:get_child("x", "jabber:x:data"); + if not publish_options then + -- Could be intentional + origin.log("debug", "No publish options in request"); + end + local push_identifier = push_jid .. "<" .. (push_node or ""); + local push_service = { + jid = push_jid; + node = push_node; + include_payload = include_payload; + options = publish_options and st.preserialize(publish_options); + timestamp = os_time(); + client_id = origin.client_id; + resource = not origin.client_id and origin.resource or nil; + language = stanza.attr["xml:lang"]; + }; + local allow_registration = module:fire_event("cloud_notify/registration", { + origin = origin, stanza = stanza, push_info = push_service; + }); + if allow_registration == false then + return true; -- Assume error reply already sent + end + push_store:set_identifier(origin.username, push_identifier, push_service); + local ok = push_store:flush_to_disk(origin.username); + if not ok then + origin.send(st.error_reply(stanza, "wait", "internal-server-error")); + else + origin.push_identifier = push_identifier; + origin.push_settings = push_service; + origin.first_hibernated_push = nil; + origin.log("info", "Push notifications enabled for %s (%s)", tostring(stanza.attr.from), tostring(origin.push_identifier)); + origin.send(st.reply(stanza)); + end + return true; +end +module:hook("iq-set/self/"..xmlns_push..":enable", push_enable); + +-- http://xmpp.org/extensions/xep-0357.html#disabling +local function push_disable(event) + local origin, stanza = event.origin, event.stanza; + local push_jid = stanza.tags[1].attr.jid; -- MUST include a 'jid' attribute + local push_node = stanza.tags[1].attr.node; -- A 'node' attribute MAY be included + if not push_jid then + origin.send(st.error_reply(stanza, "modify", "bad-request", "Missing jid")); + return true; + end + local user_push_services = push_store:get(origin.username); + for key, push_info in pairs(user_push_services) do + if push_info.jid == push_jid and (not push_node or push_info.node == push_node) then + origin.log("info", "Push notifications disabled (%s)", tostring(key)); + if origin.push_identifier == key then + origin.push_identifier = nil; + origin.push_settings = nil; + origin.first_hibernated_push = nil; + -- check for prosody 0.12 mod_smacks + if origin.hibernating_watchdog and origin.original_smacks_callback and origin.original_smacks_timeout then + -- restore old smacks watchdog + origin.hibernating_watchdog:cancel(); + origin.hibernating_watchdog = watchdog.new(origin.original_smacks_timeout, origin.original_smacks_callback); + end + end + user_push_services[key] = nil; + push_errors[key] = nil; + for stanza_id, identifier in pairs(id2identifier) do + if identifier == key then + module:unhook("iq-error/host/"..stanza_id, handle_push_error); + module:unhook("iq-result/host/"..stanza_id, handle_push_success); + id2node[stanza_id] = nil; + id2identifier[stanza_id] = nil; + end + end + end + end + local ok = push_store:flush_to_disk(origin.username); + if not ok then + origin.send(st.error_reply(stanza, "wait", "internal-server-error")); + else + origin.send(st.reply(stanza)); + end + return true; +end +module:hook("iq-set/self/"..xmlns_push..":disable", push_disable); + +-- urgent stanzas should be delivered without delay +local function is_urgent(stanza) + -- TODO + if stanza.name == "message" then + if stanza:get_child("propose", "urn:xmpp:jingle-message:0") then + return true, "jingle call"; + end + end +end + +-- is this push a high priority one (this is needed for ios apps not using voip pushes) +local function is_important(stanza) + local st_name = stanza and stanza.name or nil; + if not st_name then return false; end -- nonzas are never important here + if st_name == "presence" then + return false; -- same for presences + elseif st_name == "message" then + -- unpack carbon copied message stanzas + local carbon = stanza:find("{urn:xmpp:carbons:2}/{urn:xmpp:forward:0}/{jabber:client}message"); + local stanza_direction = carbon and stanza:child_with_name("sent") and "out" or "in"; + if carbon then stanza = carbon; end + local st_type = stanza.attr.type; + + -- headline message are always not important + if st_type == "headline" then return false; end + + -- carbon copied outgoing messages are not important + if carbon and stanza_direction == "out" then return false; end + + -- We can't check for body contents in encrypted messages, so let's treat them as important + -- Some clients don't even set a body or an empty body for encrypted messages + + -- check omemo https://xmpp.org/extensions/inbox/omemo.html + if stanza:get_child("encrypted", "eu.siacs.conversations.axolotl") or stanza:get_child("encrypted", "urn:xmpp:omemo:0") then return true; end + + -- check xep27 pgp https://xmpp.org/extensions/xep-0027.html + if stanza:get_child("x", "jabber:x:encrypted") then return true; end + + -- check xep373 pgp (OX) https://xmpp.org/extensions/xep-0373.html + if stanza:get_child("openpgp", "urn:xmpp:openpgp:0") then return true; end + + -- XEP-0353: Jingle Message Initiation (incoming call request) + if stanza:get_child("propose", "urn:xmpp:jingle-message:0") then return true; end + + local body = stanza:get_child_text("body"); + + -- groupchat subjects are not important here + if st_type == "groupchat" and stanza:get_child_text("subject") then + return false; + end + + -- empty bodies are not important + return body ~= nil and body ~= ""; + end + return false; -- this stanza wasn't one of the above cases --> it is not important, too +end + +local push_form = dataform { + { name = "FORM_TYPE"; type = "hidden"; value = "urn:xmpp:push:summary"; }; + { name = "message-count"; type = "text-single"; }; + { name = "pending-subscription-count"; type = "text-single"; }; + { name = "last-message-sender"; type = "jid-single"; }; + { name = "last-message-body"; type = "text-single"; }; +}; + +-- http://xmpp.org/extensions/xep-0357.html#publishing +local function handle_notify_request(stanza, node, user_push_services, log_push_decline) + local pushes = 0; + if not #user_push_services then return pushes end + + for push_identifier, push_info in pairs(user_push_services) do + local send_push = true; -- only send push to this node when not already done for this stanza or if no stanza is given at all + if stanza then + if not stanza._push_notify then stanza._push_notify = {}; end + if stanza._push_notify[push_identifier] then + if log_push_decline then + module:log("debug", "Already sent push notification for %s@%s to %s (%s)", node, module.host, push_info.jid, tostring(push_info.node)); + end + send_push = false; + end + stanza._push_notify[push_identifier] = true; + end + + if send_push then + -- construct push stanza + local stanza_id = hashes.sha256(random.bytes(8), true); + local push_notification_payload = st.stanza("notification", { xmlns = xmlns_push }); + local form_data = { + -- hardcode to 1 because other numbers are just meaningless (the XEP does not specify *what exactly* to count) + ["message-count"] = "1"; + }; + if stanza and include_sender then + form_data["last-message-sender"] = stanza.attr.from; + end + if stanza and include_body then + form_data["last-message-body"] = stanza:get_child_text("body"); + elseif stanza and dummy_body and is_important(stanza) then + form_data["last-message-body"] = tostring(dummy_body); + end + + push_notification_payload:add_child(push_form:form(form_data)); + + local push_publish = st.iq({ to = push_info.jid, from = module.host, type = "set", id = stanza_id }) + :tag("pubsub", { xmlns = "http://jabber.org/protocol/pubsub" }) + :tag("publish", { node = push_info.node }) + :tag("item") + :add_child(push_notification_payload) + :up() + :up(); + + if push_info.options then + push_publish:tag("publish-options"):add_child(st.deserialize(push_info.options)); + end + -- send out push + module:log("debug", "Sending %s push notification for %s@%s to %s (%s)", + form_data["last-message-body"] and "important" or "unimportant", + node, module.host, push_info.jid, tostring(push_info.node) + ); + -- module:log("debug", "PUSH STANZA: %s", tostring(push_publish)); + local push_event = { + notification_stanza = push_publish; + notification_payload = push_notification_payload; + original_stanza = stanza; + username = node; + push_info = push_info; + push_summary = form_data; + important = not not form_data["last-message-body"]; + }; + + if module:fire_event("cloud_notify/push", push_event) then + module:log("debug", "Push was blocked by event handler: %s", push_event.reason or "Unknown reason"); + else + -- handle push errors for this node + if push_errors[push_identifier] == nil then + push_errors[push_identifier] = 0; + end + module:hook("iq-error/host/"..stanza_id, handle_push_error); + module:hook("iq-result/host/"..stanza_id, handle_push_success); + id2node[stanza_id] = node; + id2identifier[stanza_id] = push_identifier; + module:send(push_publish); + pushes = pushes + 1; + end + end + end + return pushes; +end + +-- small helper function to extract relevant push settings +local function get_push_settings(stanza, session) + local to = stanza.attr.to; + local node = to and jid.split(to) or session.username; + local user_push_services = push_store:get(node); + return node, user_push_services; +end + +-- publish on offline message +module:hook("message/offline/handle", function(event) + local node, user_push_services = get_push_settings(event.stanza, event.origin); + module:log("debug", "Invoking cloud handle_notify_request() for offline stanza"); + handle_notify_request(event.stanza, node, user_push_services, true); +end, 1); + +-- publish on bare groupchat +-- this picks up MUC messages when there are no devices connected +module:hook("message/bare/groupchat", function(event) + module:log("debug", "Invoking cloud handle_notify_request() for bare groupchat stanza"); + local node, user_push_services = get_push_settings(event.stanza, event.origin); + handle_notify_request(event.stanza, node, user_push_services, true); +end, 1); + + +local function process_stanza_queue(queue, session, queue_type) + if not session.push_identifier then return; end + local user_push_services = {[session.push_identifier] = session.push_settings}; + local notified = { unimportant = false; important = false } + for i=1, #queue do + local stanza = queue[i]; + -- fast ignore of already pushed stanzas + if stanza and not (stanza._push_notify and stanza._push_notify[session.push_identifier]) then + local node = get_push_settings(stanza, session); + local stanza_type = "unimportant"; + if dummy_body and is_important(stanza) then stanza_type = "important"; end + if not notified[stanza_type] then -- only notify if we didn't try to push for this stanza type already + -- session.log("debug", "Invoking cloud handle_notify_request() for smacks queued stanza: %d", i); + if handle_notify_request(stanza, node, user_push_services, false) ~= 0 then + if session.hibernating and not session.first_hibernated_push then + -- if important stanzas are treated differently (pushed with last-message-body field set to dummy string) + -- if the message was important (e.g. had a last-message-body field) OR if we treat all pushes equally, + -- then record the time of first push in the session for the smack module which will extend its hibernation + -- timeout based on the value of session.first_hibernated_push + if not dummy_body or (dummy_body and is_important(stanza)) then + session.first_hibernated_push = os_time(); + -- check for prosody 0.12 mod_smacks + if session.hibernating_watchdog and session.original_smacks_callback and session.original_smacks_timeout then + -- restore old smacks watchdog (--> the start of our original timeout will be delayed until first push) + session.hibernating_watchdog:cancel(); + session.hibernating_watchdog = watchdog.new(session.original_smacks_timeout, session.original_smacks_callback); + end + end + end + session.log("debug", "Cloud handle_notify_request() > 0, not notifying for other %s queued stanzas of type %s", queue_type, stanza_type); + notified[stanza_type] = true + end + end + end + if notified.unimportant and notified.important then break; end -- stop processing the queue if all push types are exhausted + end +end + +-- publish on unacked smacks message (use timer to send out push for all stanzas submitted in a row only once) +local function process_stanza(session, stanza) + if session.push_identifier then + session.log("debug", "adding new stanza to push_queue"); + if not session.push_queue then session.push_queue = {}; end + local queue = session.push_queue; + queue[#queue+1] = st.clone(stanza); + if not session.awaiting_push_timer then -- timer not already running --> start new timer + session.log("debug", "Invoking cloud handle_notify_request() for newly smacks queued stanza (in a moment)"); + session.awaiting_push_timer = module:add_timer(1.0, function () + session.log("debug", "Invoking cloud handle_notify_request() for newly smacks queued stanzas (now in timer)"); + process_stanza_queue(session.push_queue, session, "push"); + session.push_queue = {}; -- clean up queue after push + session.awaiting_push_timer = nil; + end); + end + end + return stanza; +end + +local function process_smacks_stanza(event) + local session = event.origin; + local stanza = event.stanza; + if not session.push_identifier then + session.log("debug", "NOT invoking cloud handle_notify_request() for newly smacks queued stanza (session.push_identifier is not set: %s)", + session.push_identifier + ); + else + process_stanza(session, stanza) + end +end + +-- smacks hibernation is started +local function hibernate_session(event) + local session = event.origin; + local queue = event.queue; + session.first_hibernated_push = nil; + if session.push_identifier and session.hibernating_watchdog then -- check for prosody 0.12 mod_smacks + -- save old watchdog callback and timeout + session.original_smacks_callback = session.hibernating_watchdog.callback; + session.original_smacks_timeout = session.hibernating_watchdog.timeout; + -- cancel old watchdog and create a new watchdog with extended timeout + session.hibernating_watchdog:cancel(); + session.hibernating_watchdog = watchdog.new(extended_hibernation_timeout, function() + session.log("debug", "Push-extended smacks watchdog triggered"); + if session.original_smacks_callback then + session.log("debug", "Calling original smacks watchdog handler"); + session.original_smacks_callback(); + end + end); + end + -- process unacked stanzas + process_stanza_queue(queue, session, "smacks"); +end + +-- smacks hibernation is ended +local function restore_session(event) + local session = event.resumed; + if session then -- older smacks module versions send only the "intermediate" session in event.session and no session.resumed one + if session.awaiting_push_timer then + session.awaiting_push_timer:stop(); + session.awaiting_push_timer = nil; + end + session.first_hibernated_push = nil; + -- the extended smacks watchdog will be canceled by the smacks module, no need to anything here + end +end + +-- smacks ack is delayed +local function ack_delayed(event) + local session = event.origin; + local queue = event.queue; + local stanza = event.stanza; + if not session.push_identifier then return; end + if stanza then process_stanza(session, stanza); return; end -- don't iterate through smacks queue if we know which stanza triggered this + for i=1, #queue do + local queued_stanza = queue[i]; + -- process unacked stanzas (handle_notify_request() will only send push requests for new stanzas) + process_stanza(session, queued_stanza); + end +end + +-- archive message added +local function archive_message_added(event) + -- event is: { origin = origin, stanza = stanza, for_user = store_user, id = id } + -- only notify for new mam messages when at least one device is online + if not event.for_user or not host_sessions[event.for_user] then return; end + local stanza = event.stanza; + local user_session = host_sessions[event.for_user].sessions; + local to = stanza.attr.to; + to = to and jid.split(to) or event.origin.username; + + -- only notify if the stanza destination is the mam user we store it for + if event.for_user == to then + local user_push_services = push_store:get(to); + + -- Urgent stanzas are time-sensitive (e.g. calls) and should + -- be pushed immediately to avoid getting stuck in the smacks + -- queue in case of dead connections, for example + local is_urgent_stanza, urgent_reason = is_urgent(event.stanza); + + local notify_push_services; + if is_urgent_stanza then + module:log("debug", "Urgent push for %s (%s)", to, urgent_reason); + notify_push_services = user_push_services; + else + -- only notify nodes with no active sessions (smacks is counted as active and handled separate) + notify_push_services = {}; + for identifier, push_info in pairs(user_push_services) do + local identifier_found = nil; + for _, session in pairs(user_session) do + if session.push_identifier == identifier then + identifier_found = session; + break; + end + end + if identifier_found then + identifier_found.log("debug", "Not cloud notifying '%s' of new MAM stanza (session still alive)", identifier); + else + notify_push_services[identifier] = push_info; + end + end + end + + handle_notify_request(event.stanza, to, notify_push_services, true); + end +end + +module:hook("smacks-hibernation-start", hibernate_session); +module:hook("smacks-hibernation-end", restore_session); +module:hook("smacks-ack-delayed", ack_delayed); +module:hook("smacks-hibernation-stanza-queued", process_smacks_stanza); +module:hook("archive-message-added", archive_message_added); + +local function send_ping(event) + local user = event.user; + local push_services = event.push_services or push_store:get(user); + module:log("debug", "Handling event 'cloud-notify-ping' for user '%s'", user); + local retval = handle_notify_request(nil, user, push_services, true); + module:log("debug", "handle_notify_request() returned %s", tostring(retval)); +end +-- can be used by other modules to ping one or more (or all) push endpoints +module:hook("cloud-notify-ping", send_ping); + +module:log("info", "Module loaded"); +function module.unload() + module:log("info", "Unloading module"); + -- cleanup some settings, reloading this module can cause process_smacks_stanza() to stop working otherwise + for user, _ in pairs(host_sessions) do + for _, session in pairs(host_sessions[user].sessions) do + if session.awaiting_push_timer then session.awaiting_push_timer:stop(); end + session.awaiting_push_timer = nil; + session.push_queue = nil; + session.first_hibernated_push = nil; + -- check for prosody 0.12 mod_smacks + if session.hibernating_watchdog and session.original_smacks_callback and session.original_smacks_timeout then + -- restore old smacks watchdog + session.hibernating_watchdog:cancel(); + session.hibernating_watchdog = watchdog.new(session.original_smacks_timeout, session.original_smacks_callback); + end + end + end + module:log("info", "Module unloaded"); +end |