File

mod_http_user_count/mod_http_user_count.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 1830:a45f2f79e99b
line wrap: on
line source

local it = require "util.iterators";
local jid_split = require "util.jid".prepped_split;

module:depends("http");

local function check_muc(jid)
	local room_name, host = jid_split(jid);
	if not hosts[host] then
		return nil, "No such host: "..host;
	elseif not hosts[host].modules.muc then
		return nil, "Host '"..host.."' is not a MUC service";
	end
	return room_name, host;
end

module:provides("http", {
    route = {
        ["GET /sessions"] = function () return tostring(it.count(it.keys(prosody.full_sessions))); end;
        ["GET /users"] = function () return tostring(it.count(it.keys(prosody.bare_sessions))); end;
        ["GET /host"] = function () return tostring(it.count(it.keys(prosody.hosts[module.host].sessions))); end;
        ["GET /room/*"] = function (request, room_jid)
        	local name, host = check_muc(room_jid);
        	if not name then
        		return "0";
        	end
       		local room = prosody.hosts[host].modules.muc.rooms[name.."@"..host];
       		if not room then
       			return "0";
       		end
        	return tostring(it.count(it.keys(room._occupants)));
        end;
    };
});