ermyth/src/packet.C

/*
 * packet.C: IRC packet handling.
 * Rights to this code are documented in doc/pod/license.pod.
 *
 * Copyright © 2005-2007 Atheme Project (http://www.atheme.org)
 */

static char const rcsid[] = "$Id: packet.C,v 1.3 2007-07-21 13:23:22 pippijn Exp $";

#include "atheme.h"
#include "uplink.h"
#include "datastream.h"

static void on_connected (connection_t *cptr);

/* bursting timer */
#if HAVE_GETTIMEOFDAY
struct timeval burstime;
#endif

static void
irc_recvq_handler (connection_t *cptr)
{
  bool wasnonl;
  char parsebuf[BUFSIZE + 1];
  int count;

  wasnonl = cptr->flags & CF_NONEWLINE ? true : false;
  count = recvq_getline (cptr, parsebuf, sizeof parsebuf - 1);
  if (count <= 0)
    return;
  cnt.bin += count;
  /* ignore the excessive part of a too long line */
  if (wasnonl)
    return;
  me.uplinkpong = NOW;
  if (parsebuf[count - 1] == '\n')
    count--;
  if (count > 0 && parsebuf[count - 1] == '\r')
    count--;
  parsebuf[count] = '\0';
  parse (parsebuf);
}

static void
ping_uplink (void *arg)
{
  unsigned int diff;

  if (me.connected)
    {
      phandler->ping_sts ();

      diff = NOW - me.uplinkpong;

      if (diff >= 600)
        {
          slog (LG_INFO, "ping_uplink(): uplink appears to be dead, disconnecting");
          sts ("ERROR :Closing Link: 127.0.0.1 (Ping timeout: %d seconds)", diff);
          sendq_flush (curr_uplink->conn);
          if (me.connected)
            {
              errno = 0;
              connection_close (curr_uplink->conn);
            }
        }
    }

  if (!me.connected)
    event_delete (ping_uplink, NULL);
}

static void
on_connected (connection_t *cptr)
{
  /* add our server */

  if (cptr == curr_uplink->conn)
    {
      cptr->flags = CF_UPLINK;
      cptr->recvq_handler = irc_recvq_handler;
      me.connected = true;
      /* no SERVER message received */
      me.recvsvr = false;

      slog (LG_INFO, "irc_handle_connect(): connection to uplink established");

      phandler->server_login ();

#ifdef HAVE_GETTIMEOFDAY
      /* start our burst timer */
      s_time (&burstime);
#endif

      /* done bursting by this time... */
      phandler->ping_sts ();

      /* ping our uplink every 5 minutes */
      event_delete (ping_uplink, NULL);
      event_add ("ping_uplink", ping_uplink, NULL, 300);
      me.uplinkpong = NOW;
    }
}

void
init_ircpacket (void)
{
  connection_t::callback.connected.attach (on_connected);
}
Revision:	1.4
Committed:	Tue Aug 28 17:08:12 2007 UTC (16 years, 9 months ago) by pippijn
Content type:	text/plain
Branch:	MAIN
Changes since 1.3:	+10 -17 lines
Log Message:	- changed name - updated the example config to the new system - added more documentation - enhanced documentation generators - added a link to the pdf to the website - added an RSS feed generator - transitioned hooks to c++ callbacks - did various merges with upstream along the way - added const where appropriate - removed the old block allocator - fixed most memory leaks - transitioned some dictionaries to std::map - transitioned some lists to std::vector - made some free functions members where appropriate - renamed string to dynstr and added a static string ststr - use NOW instead of time (NULL) if possible - completely reworked database backends, crypto handlers and protocol handlers to use an object factory - removed the old module system. ermyth does not do any dynamic loading anymore - fixed most of the build system - reworked how protocol commands work
#	User	Rev	Content
1	pippijn	1.1	/*
2			* packet.C: IRC packet handling.
3	pippijn	1.2	* Rights to this code are documented in doc/pod/license.pod.
4	pippijn	1.1	*
5	pippijn	1.4	* Copyright © 2005-2007 Atheme Project (http://www.atheme.org)
6	pippijn	1.1	*/
7
8	pippijn	1.4	static char const rcsid[] = "$Id: packet.C,v 1.3 2007-07-21 13:23:22 pippijn Exp $";
9	pippijn	1.1
10			#include "atheme.h"
11			#include "uplink.h"
12			#include "datastream.h"
13
14	pippijn	1.4	static void on_connected (connection_t *cptr);
15
16	pippijn	1.1	/* bursting timer */
17			#if HAVE_GETTIMEOFDAY
18			struct timeval burstime;
19			#endif
20
21			static void
22			irc_recvq_handler (connection_t *cptr)
23			{
24			bool wasnonl;
25			char parsebuf[BUFSIZE + 1];
26			int count;
27
28			wasnonl = cptr->flags & CF_NONEWLINE ? true : false;
29			count = recvq_getline (cptr, parsebuf, sizeof parsebuf - 1);
30			if (count <= 0)
31			return;
32			cnt.bin += count;
33			/* ignore the excessive part of a too long line */
34			if (wasnonl)
35			return;
36			me.uplinkpong = NOW;
37			if (parsebuf[count - 1] == '\n')
38			count--;
39			if (count > 0 && parsebuf[count - 1] == '\r')
40			count--;
41			parsebuf[count] = '\0';
42			parse (parsebuf);
43			}
44
45			static void
46			ping_uplink (void *arg)
47			{
48			unsigned int diff;
49
50			if (me.connected)
51			{
52	pippijn	1.4	phandler->ping_sts ();
53	pippijn	1.1
54			diff = NOW - me.uplinkpong;
55
56			if (diff >= 600)
57			{
58			slog (LG_INFO, "ping_uplink(): uplink appears to be dead, disconnecting");
59			sts ("ERROR :Closing Link: 127.0.0.1 (Ping timeout: %d seconds)", diff);
60			sendq_flush (curr_uplink->conn);
61			if (me.connected)
62			{
63			errno = 0;
64			connection_close (curr_uplink->conn);
65			}
66			}
67			}
68
69			if (!me.connected)
70			event_delete (ping_uplink, NULL);
71			}
72
73			static void
74	pippijn	1.4	on_connected (connection_t *cptr)
75	pippijn	1.1	{
76			/* add our server */
77
78			if (cptr == curr_uplink->conn)
79			{
80			cptr->flags = CF_UPLINK;
81			cptr->recvq_handler = irc_recvq_handler;
82			me.connected = true;
83			/* no SERVER message received */
84			me.recvsvr = false;
85
86			slog (LG_INFO, "irc_handle_connect(): connection to uplink established");
87
88	pippijn	1.4	phandler->server_login ();
89	pippijn	1.1
90			#ifdef HAVE_GETTIMEOFDAY
91			/* start our burst timer */
92			s_time (&burstime);
93			#endif
94
95			/* done bursting by this time... */
96	pippijn	1.4	phandler->ping_sts ();
97	pippijn	1.1
98			/* ping our uplink every 5 minutes */
99			event_delete (ping_uplink, NULL);
100			event_add ("ping_uplink", ping_uplink, NULL, 300);
101	pippijn	1.4	me.uplinkpong = NOW;
102	pippijn	1.1	}
103			}
104
105			void
106			init_ircpacket (void)
107			{
108	pippijn	1.4	connection_t::callback.connected.attach (on_connected);
109	pippijn	1.1	}