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.
module:depends"adhoc";
local dataforms_new = require "util.dataforms".new;
local jid_split = require "util.jid".split;
local t_insert = table.insert;
local prefs = module:require"mod_mam/mamprefs";
local set_prefs, get_prefs = prefs.set, prefs.get;
local mam_prefs_form = dataforms_new{
title = "Archive preferences";
--instructions = "";
{
name = "default",
label = "Default storage policy",
type = "list-single",
value = {
{ value = "always", label = "Always" },
{ value = "never", label = "Never", default = true},
{ value = "roster", label = "Roster" },
},
};
{
name = "always",
label = "Always store messages to/from",
type = "jid-multi"
};
{
name = "never",
label = "Never store messages to/from",
type = "jid-multi"
};
};
local host = module.host;
local default_attrs = {
always = true, [true] = "always",
never = false, [false] = "never",
roster = "roster",
}
local function mam_prefs_handler(self, data, state)
local username = jid_split(data.from);
if state then -- the second return value
if data.action == "cancel" then
return { status = "canceled" };
end
local fields = mam_prefs_form:data(data.form);
local default, always, never = fields.default, fields.always, fields.never;
local prefs = {};
if default then
prefs[false] = default_attrs[default];
end
if always then
for i=1,#always do
prefs[always[i]] = true;
end
end
if never then
for i=1,#never do
prefs[never[i]] = false;
end
end
set_prefs(username, prefs);
return { status = "completed" }
else -- No state, send the form.
local prefs = get_prefs(username);
local values = {
default = {
{ value = "always", label = "Always" };
{ value = "never", label = "Never" };
{ value = "roster", label = "Roster" };
};
always = {};
never = {};
};
for jid, p in pairs(prefs) do
if jid then
t_insert(values[p and "always" or "never"], jid);
elseif p == true then -- Yes, this is ugly. FIXME later.
values.default[1].default = true;
elseif p == false then
values.default[2].default = true;
elseif p == "roster" then
values.default[3].default = true;
end
end
return { status = "executing", actions = { "complete" }, form = { layout = mam_prefs_form, values = values } }, true;
end
end
module:provides("adhoc", module:require"adhoc".new("Archive settings", "urn:xmpp:mam#configure", mam_prefs_handler, "local_user"));