view mod_http_stats_stream/mod_http_stats_stream.lua @ 5446:dd7bddc87f98

mod_http_oauth2: Fix inclusion of role in refreshed access tokens `refresh_token_info` does not carry the role, and due to behavior prior to prosody trunk rev a1ba503610ed it would have reverted to the users' default role. After that it instead issues a token without role which is thus not usable with e.g. mod_rest
author Kim Alvefur <zash@zash.se>
date Thu, 11 May 2023 21:37:35 +0200
parents bac3dae031ee
children
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module:set_global();

local statsman = require "core.statsmanager";
local http = require "net.http.server";
local json = require "util.json";

assert(statsman.get_stats, "not compatible with trunk based on openmetrics");

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.headers.content_type = "text/event-stream";
	response.headers.x_accel_buffering = "no"; -- for nginx maybe?
	local resp = http.prepare_header(response);
	table.insert(resp, "event: stats-full\r\n");
	table.insert(resp, "data: ");
	table.insert(resp, json.encode(statsman.get_stats()));
	table.insert(resp, "\r\n\r\n");
	response.conn:write(table.concat(resp));

	sessions[response] = request;
	return true;
end


module:hook("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;
	}
});