File

mod_http_user_count/mod_http_user_count.lua @ 5691:ecfd7aece33b

mod_measure_modules: Report module statuses via OpenMetrics Someone in the chat asked about a health check endpoint, which reminded me of mod_http_status, which provides access to module statuses with full details. After that, this idea came about, which seems natural. As noted in the README, it could be used to monitor that critical modules are in fact loaded correctly. As more modules use the status API, the more useful this module and mod_http_status becomes.
author Kim Alvefur <zash@zash.se>
date Fri, 06 Oct 2023 18:34:39 +0200
parent 1830:a45f2f79e99b
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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;
    };
});