src/send-announce.cc

   1
   2 /*
   3  * $Id$
   4  *
   5  * DEBUG: section 27    Cache Announcer
   6  * AUTHOR: Duane Wessels
   7  *
   8  * SQUID Web Proxy Cache          http://www.squid-cache.org/
   9  * ----------------------------------------------------------
  10  *
  11  *  Squid is the result of efforts by numerous individuals from
  12  *  the Internet community; see the CONTRIBUTORS file for full
  13  *  details.   Many organizations have provided support for Squid's
  14  *  development; see the SPONSORS file for full details.  Squid is
  15  *  Copyrighted (C) 2001 by the Regents of the University of
  16  *  California; see the COPYRIGHT file for full details.  Squid
  17  *  incorporates software developed and/or copyrighted by other
  18  *  sources; see the CREDITS file for full details.
  19  *
  20  *  This program is free software; you can redistribute it and/or modify
  21  *  it under the terms of the GNU General Public License as published by
  22  *  the Free Software Foundation; either version 2 of the License, or
  23  *  (at your option) any later version.
  24  *
  25  *  This program is distributed in the hope that it will be useful,
  26  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  27  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  28  *  GNU General Public License for more details.
  29  *
  30  *  You should have received a copy of the GNU General Public License
  31  *  along with this program; if not, write to the Free Software
  32  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA.
  33  *
  34  */
  35
  36 #include "squid.h"
  37 #include "comm/Connection.h"
  38 #include "event.h"
  39 #include "fde.h"
  40 #include "ICP.h"
  41 #include "SquidTime.h"
  42
  43 static IPH send_announce;
  44
  45 void
  46 start_announce(void *datanotused)
  47 {
  48     if (0 == Config.onoff.announce)
  49         return;
  50
  51     if (!Comm::IsConnOpen(icpOutgoingConn))
  52         return;
  53
  54     ipcache_nbgethostbyname(Config.Announce.host, send_announce, NULL);
  55
  56     eventAdd("send_announce", start_announce, NULL, (double) Config.Announce.period, 1);
  57 }
  58
  59 static void
  60 send_announce(const ipcache_addrs *ia, const DnsLookupDetails &, void *junk)
  61 {
  62     LOCAL_ARRAY(char, tbuf, 256);
  63     LOCAL_ARRAY(char, sndbuf, BUFSIZ);
  64
  65     char *host = Config.Announce.host;
  66     char *file = NULL;
  67     u_short port = Config.Announce.port;
  68     int l;
  69     int n;
  70     int fd;
  71
  72     if (ia == NULL) {
  73         debugs(27, 1, "send_announce: Unknown host '" << host << "'");
  74         return;
  75     }
  76
  77     debugs(27, 1, "Sending Announcement to " << host);
  78     sndbuf[0] = '\0';
  79     snprintf(tbuf, 256, "cache_version SQUID/%s\n", version_string);
  80     strcat(sndbuf, tbuf);
  81     assert(Config.Sockaddr.http);
  82     snprintf(tbuf, 256, "Running on %s %d %d\n",
  83              getMyHostname(),
  84              getMyPort(),
  85              (int) Config.Port.icp);
  86     strcat(sndbuf, tbuf);
  87
  88     if (Config.adminEmail) {
  89         snprintf(tbuf, 256, "cache_admin: %s\n", Config.adminEmail);
  90         strcat(sndbuf, tbuf);
  91     }
  92
  93     snprintf(tbuf, 256, "generated %d [%s]\n",
  94              (int) squid_curtime,
  95              mkhttpdlogtime(&squid_curtime));
  96     strcat(sndbuf, tbuf);
  97     l = strlen(sndbuf);
  98
  99     if ((file = Config.Announce.file) != NULL) {
 100         fd = file_open(file, O_RDONLY | O_TEXT);
 101
 102         if (fd > -1 && (n = FD_READ_METHOD(fd, sndbuf + l, BUFSIZ - l - 1)) > 0) {
 103             fd_bytes(fd, n, FD_READ);
 104             l += n;
 105             sndbuf[l] = '\0';
 106             file_close(fd);
 107         } else {
 108             debugs(50, 1, "send_announce: " << file << ": " << xstrerror());
 109         }
 110     }
 111
 112     Ip::Address S = ia->in_addrs[0];
 113     S.SetPort(port);
 114     assert(Comm::IsConnOpen(icpOutgoingConn));
 115
 116     if (comm_udp_sendto(icpOutgoingConn->fd, S, sndbuf, strlen(sndbuf) + 1) < 0)
 117         debugs(27, 1, "ERROR: Failed to announce to " << S << " from " << icpOutgoingConn->local << ": " << xstrerror());
 118 }