2 GoVPN -- simple secure free software virtual private network daemon
3 Copyright (C) 2014-2017 Sergey Matveev <stargrave@stargrave.org>
5 This program is free software: you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation, either version 3 of the License, or
8 (at your option) any later version.
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with this program. If not, see <http://www.gnu.org/licenses/>.
30 RWTimeout = 10 * time.Second
33 // StatsProcessor is assumed to be run in background. It accepts
34 // connection on statsPort, reads anything one send to them and show
35 // information about known peers in serialized JSON format. peers
36 // argument is a reference to the map with references to the peers as
37 // values. Map is used here because of ease of adding and removing
39 func StatsProcessor(statsPort net.Listener, peers *sync.Map) {
43 buf := make([]byte, 2<<8)
45 conn, err = statsPort.Accept()
47 log.Println("Error during accepting connection", err.Error())
50 conn.SetDeadline(time.Now().Add(RWTimeout))
52 conn.Write([]byte("HTTP/1.0 200 OK\r\nContent-Type: application/json\r\n\r\n"))
54 peers.Range(func(_, peerI interface{}) bool {
55 peersList = append(peersList, *peerI.(**Peer))
58 data, err = json.Marshal(peersList)