view mod_http_stats_stream/mod_http_stats_stream.lua @ 2963:504bb330e910

mod_net_proxy: Added proxy_trusted_proxies for whitelisting incoming connections
author Pascal Mathis <mail@pascalmathis.com>
date Wed, 28 Mar 2018 20:47:41 +0200
parents 47a6f01231b2
children fd054689a64c
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local statsman = require "core.statsmanager";
local json = require "util.json";

local sessions = {};

local function updates_client_closed(response)
	module:log("debug", "Streamstats client closed");
	sessions[response] = nil;
end

local function get_updates(event)
	local request, response = event.request, event.response;

	response.on_destroy = updates_client_closed;

	response.conn:write(table.concat({
		"HTTP/1.1 200 OK";
		"Content-Type: text/event-stream";
		"X-Accel-Buffering: no"; -- For nginx maybe?
		"";
		"event: stats-full";
		"data: "..json.encode(statsman.get_stats());
		"";
		"";
	}, "\r\n"));

	sessions[response] = request;
	return true;
end


module:hook_global("stats-updated", function (event)
	local data = table.concat({
		"event: stats-updated";
		"data: "..json.encode(event.changed_stats);
		"";
		"";
	}, "\r\n")
	for response in pairs(sessions) do
		response.conn:write(data);
	end
end);


module:depends("http");
module:provides("http", {
	route = {
		GET = get_updates;
	}
});