prosody-modules
adc6241e5d16
mod_admin_probe/mod_admin_probe.lua

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Software / code / prosody-modules

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mod_admin_probe/mod_admin_probe.lua @ 4877:adc6241e5d16

mod_measure_process: Report the enforced limit The soft limit is what the kernel actually enforces, while the hard limit is is how far you can change the soft limit without privileges. Unless the process dynamically adjusts the soft limit, knowing the hard limit is not as useful as knowing the soft limit. Reporting the soft limit and the number of in-use FDs allows placing alerts on expressions like 'process_open_fds / process_max_fds >= 0.95'
author Kim Alvefur <zash@zash.se>
date Tue, 18 Jan 2022 18:55:20 +0100
parent 1281:f78661861e98
line wrap: on
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-- Prosody IM
-- Copyright (C) 2014 Florian Zeitz
--
-- This project is MIT/X11 licensed. Please see the
-- COPYING file in the source package for more information.
--

local presence = module:depends("presence");
local send_presence_of_available_resources = presence.send_presence_of_available_resources;

local hosts = prosody.hosts;
local core_post_stanza = prosody.core_post_stanza;

local st = require "util.stanza";
local is_admin = require "core.usermanager".is_admin;
local jid_split = require "util.jid".split;

module:hook("presence/bare", function(data)
	local origin, stanza = data.origin, data.stanza;
	local to, from, type = stanza.attr.to, stanza.attr.from, stanza.attr.type;
	local node, host = jid_split(to);

	if type ~= "probe" then return; end
	if not is_admin(from, module.host) then return; end

	if 0 == send_presence_of_available_resources(node, host, from, origin) then
		core_post_stanza(hosts[host], st.presence({from=to, to=from, type="unavailable"}), true);
	end
	return true;
end, 10);