view mod_statistics/prosodytop.lib.lua @ 5255:001c8fdc91a4

mod_http_oauth2: Add support for the "openid" scope This "openid" scope is there to signal access to the userinfo endpoint, which is needed for OIDC support. We don't actually check this later because the userinfo endpoint only returns info embedded in the token itself, but in the future we may want to check this more carefully.
author Kim Alvefur <zash@zash.se>
date Thu, 16 Mar 2023 17:06:35 +0100
parents 1962c94e2203
children
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local curses = require "curses";
local server = require "net.server_select";
local timer = require "util.timer";
local envload = require "util.envload".envload;

assert(curses.timeout, "Incorrect version of curses library. Try 'sudo luarocks install luaposix'");

local top = module:require "top";

function main()
	local stdscr = curses.stdscr()  -- it's a userdatum
	--stdscr:clear();
	local view = top.new({
		stdscr = stdscr;
		prosody = { up_since = os.time() };
		conn_list = {};
	});

	timer.add_task(0.01, function ()
		local ch = stdscr:getch();
		if ch then
			if stdscr:getch() == 410 then
				view:resized();
			else
				curses.ungetch(ch);
			end
		end
		return 0.2;
	end);

	timer.add_task(0, function ()
		view:draw();
		return 1;
	end);

	--[[
	posix.signal(28, function ()
		table.insert(view.conn_list, { jid = "WINCH" });
		--view:draw();
	end);
	]]

	-- Fake socket object around stdin
	local stdin = {
        	getfd = function () return 0; end;
        	dirty = function (self) return false; end;
        	settimeout = function () end;
        	send = function (_, d) return #d, 0; end;
        	close = function () end;
        	receive = function (_, patt)
        		local ch = stdscr:getch();
        		if ch >= 0 and ch <=255 then
        			return string.char(ch);
        		elseif ch == 410 then
        			view:resized();
        		else
        			table.insert(view.conn_list, { jid = tostring(ch) }); --FIXME
        		end
        		return "";
        	end
	};
	local function on_incoming(stdin, text)
		-- TODO: Handle keypresses
		if text:lower() == "q" then os.exit(); end
	end
	stdin = server.wrapclient(stdin, "stdin", 0, {
		onincoming = on_incoming, ondisconnect = function () end
	}, "*a");

	local function handle_line(line)
		local e = {
			STAT = function (name) return function (value)
				view:update_stat(name, value);
			end end;
			SESS = function (id) return function (jid) return function (stats)
				view:update_session(id, jid, stats);
			end end end;
		};
		local chunk = assert(envload(line, "=prosodytop", e));
		chunk();
	end

	local stats_listener = {};

	function stats_listener.onconnect(conn)
		--stdscr:mvaddstr(6, 0, "CONNECTED");
	end

	local partial = "";
	function stats_listener.onincoming(conn, data)
		--print("DATA", data)
		data = partial..data;
		local lastpos = 1;
		for line, pos in data:gmatch("([^\n]+)\n()") do
			lastpos = pos;
			handle_line(line);
		end
		partial = data:sub(lastpos);
	end

	function stats_listener.ondisconnect(conn, err)
		stdscr:mvaddstr(6, 0, "DISCONNECTED: "..(err or "unknown"));
	end

	local conn = require "socket".tcp();
	assert(conn:connect("localhost", 5782));
	handler = server.wrapclient(conn, "localhost", 5782, stats_listener, "*a");
end

return {
	run = function ()
		--os.setlocale("UTF-8", "all")

		curses.initscr()
		curses.cbreak()
		curses.echo(false)  -- not noecho !
		curses.nl(false)    -- not nonl !
		curses.timeout(0);

		local ok, err = pcall(main);

		--while true do stdscr:getch() end
		--stdscr:endwin()

		if ok then
			ok, err = xpcall(server.loop, debug.traceback);
		end

		curses.endwin();

		--stdscr:refresh();
		if not ok then
			print(err);
		end

		print"DONE"
	end;
};