mod_log_ringbuffer: Detach event handlers on logging reload (thanks Menel)
Otherwise the global event handlers accumulate, one added each time
logging is reoladed, and each invocation of the signal or event triggers
one dump of each created ringbuffer.
-- Send carbons v0 style copies of incoming messages to clients which
-- are not (yet) capable of Message Carbons (XEP-0280).
--
-- This extension integrates with the mod_carbons plugin in such a way
-- that a client capable of Message Carbons will not get a v0 copy.
--
-- This extension can be enabled for all users by default by setting
-- carbons_copies_default = true.
--
-- Alternatively or additionally setting carbons_copies_adhoc = true
-- will allow the user to enable or disable copies through Adhoc
-- commands.
--
-- Copyright (C) 2012 Michael Holzt
--
-- This file is MIT/X11 licensed.
local jid_split = require "util.jid".split;
local dm_load = require "util.datamanager".load;
local dm_store = require "util.datamanager".store;
local adhoc_new = module:require "adhoc".new;
local xmlns_carbons_v0 = "urn:xmpp:carbons:0";
local storename = "mod_carbons_copies";
local function toggle_copies(data, on)
local username, hostname, resource = jid_split(data.from);
dm_store(username, hostname, storename, { enabled = on });
end
local function adhoc_enable_copies(self, data, state)
toggle_copies(data, true);
return { info = "Copies are enabled for you now.\nPlease restart/reconnect clients.", status = "completed" };
end
local function adhoc_disable_copies(self, data, state)
toggle_copies(data, false);
return { info = "Copies are disabled for you now.\nPlease restart/reconnect clients.", status = "completed" };
end
module:hook("resource-bind", function(event)
local session = event.session;
local username, hostname, resource = jid_split(session.full_jid);
local store = dm_load(username, hostname, storename) or
{ enabled =
module:get_option_boolean("carbons_copies_default") };
if store.enabled then
session.want_carbons = xmlns_carbons_v0;
module:log("debug", "%s enabling copies", session.full_jid);
end
end);
-- Adhoc-Support
if module:get_option_boolean("carbons_copies_adhoc") then
local enable_desc = adhoc_new("Carbons: Enable Copies",
"mod_carbons_copies#enable", adhoc_enable_copies);
local disable_desc = adhoc_new("Carbons: Disable Copies",
"mod_carbons_copies#disable", adhoc_disable_copies);
module:add_item("adhoc", enable_desc);
module:add_item("adhoc", disable_desc);
end