Set state as online if PING is received.
[cascardo/f2fchat.git] / message.c
1 /*
2  *  Copyright (C) 2013  Thadeu Lima de Souza Cascardo <cascardo@cascardo.info>
3  *
4  *  This program is free software; you can redistribute it and/or modify
5  *  it under the terms of the GNU General Public License as published by
6  *  the Free Software Foundation; either version 3 of the License, or
7  *  (at your option) any later version.
8  *
9  *  This program is distributed in the hope that it will be useful,
10  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
11  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12  *  GNU General Public License for more details.
13  *
14  *  You should have received a copy of the GNU General Public License along
15  *  with this program; if not, write to the Free Software Foundation, Inc.,
16  *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
17  */
18
19 #include "message.h"
20 #include "friend.h"
21 #include <glib.h>
22 #include <gio/gio.h>
23
24 #include <stdio.h>
25
26 gboolean ping_timeout(gpointer data)
27 {
28         struct friend *friend = data;
29         friend_timeout(friend);
30         return G_SOURCE_REMOVE;
31 }
32
33 static GIOChannel *uchannel;
34 static GSocket *gusock;
35
36 static void command(char *buffer, size_t len)
37 {
38         printf("message from loopback: %d %.*s\n", len, len, buffer);
39 }
40
41 gboolean message_incoming(GIOChannel *channel, GIOCondition cond, gpointer data)
42 {
43         size_t len;
44         char *buffer;
45         GSocketAddress *address;
46         GInetAddress *iaddress;
47         if (!gusock) {
48                 gusock = g_socket_new_from_fd(g_io_channel_unix_get_fd(channel), NULL);
49         }
50         len = g_socket_get_available_bytes(gusock);
51         buffer = g_malloc(len);
52         len = g_socket_receive_from(gusock, &address, buffer, len, NULL, NULL);
53         iaddress = g_inet_socket_address_get_address(G_INET_SOCKET_ADDRESS(address));
54         if (g_inet_address_get_is_loopback(iaddress)) {
55                 command(buffer, len);
56         } else {
57                 struct friend *friend;
58                 uint16_t port = g_inet_socket_address_get_port(G_INET_SOCKET_ADDRESS(address));
59                 friend = friend_get_by_address(iaddress, port);
60                 if (friend) {
61                         printf("got message from %s\n", friend_get_name(friend));
62                         friend_got_message(friend, buffer, len);
63                 } else {
64                         printf("could not find friend from address %s\n", g_inet_address_to_string(iaddress));
65                 }
66         }
67         g_object_unref(address);
68         g_free(buffer);
69         return TRUE;
70 }
71
72 int message_init(GSocket *sock)
73 {
74         uchannel = g_io_channel_unix_new(g_socket_get_fd(sock));
75         g_io_add_watch(uchannel, G_IO_IN, message_incoming, NULL);
76         return 0;
77 }
78
79 int ping(struct friend *friend)
80 {
81         int err;
82         char ping[5] = "PING";
83         err = friend_send_message(friend, ping, 4);
84         if (!err)
85                 g_timeout_add(2000, ping_timeout, friend);
86         return err;
87 }
88
89 int pong(struct friend *friend)
90 {
91         char pong[5] = "PONG";
92         return friend_send_message(friend, pong, 4);
93 }