modules/m_motd.c

   1 /*
   2  *  ircd-ratbox: A slightly useful ircd.
   3  *  m_motd.c: Shows the current message of the day.
   4  *
   5  *  Copyright (C) 1990 Jarkko Oikarinen and University of Oulu, Co Center
   6  *  Copyright (C) 1996-2002 Hybrid Development Team
   7  *  Copyright (C) 2002-2005 ircd-ratbox development team
   8  *
   9  *  This program is free software; you can redistribute it and/or modify
  10  *  it under the terms of the GNU General Public License as published by
  11  *  the Free Software Foundation; either version 2 of the License, or
  12  *  (at your option) any later version.
  13  *
  14  *  This program is distributed in the hope that it will be useful,
  15  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  *  GNU General Public License for more details.
  18  *
  19  *  You should have received a copy of the GNU General Public License
  20  *  along with this program; if not, write to the Free Software
  21  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307
  22  *  USA
  23  */
  24
  25 #include "stdinc.h"
  26 #include "client.h"
  27 #include "ircd.h"
  28 #include "send.h"
  29 #include "numeric.h"
  30 #include "hook.h"
  31 #include "msg.h"
  32 #include "s_serv.h"             /* hunt_server */
  33 #include "parse.h"
  34 #include "modules.h"
  35 #include "s_conf.h"
  36 #include "cache.h"
  37 #include "ratelimit.h"
  38
  39 static const char motd_desc[] = "Provides the MOTD command to view the Message of the Day";
  40
  41 static void m_motd(struct MsgBuf *, struct Client *, struct Client *, int, const char **);
  42 static void mo_motd(struct MsgBuf *, struct Client *, struct Client *, int, const char **);
  43
  44 struct Message motd_msgtab = {
  45         "MOTD", 0, 0, 0, 0,
  46         {mg_unreg, {m_motd, 0}, {mo_motd, 0}, mg_ignore, mg_ignore, {mo_motd, 0}}
  47 };
  48
  49 int doing_motd_hook;
  50
  51 mapi_clist_av1 motd_clist[] = { &motd_msgtab, NULL };
  52 mapi_hlist_av1 motd_hlist[] = {
  53         { "doing_motd", &doing_motd_hook },
  54         { NULL, NULL }
  55 };
  56
  57 DECLARE_MODULE_AV2(motd, NULL, NULL, motd_clist, motd_hlist, NULL, NULL, NULL, motd_desc);
  58
  59 static void motd_spy(struct Client *);
  60
  61 /*
  62 ** m_motd
  63 **      parv[1] = servername
  64 */
  65 static void
  66 m_motd(struct MsgBuf *msgbuf_p, struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
  67 {
  68         static time_t last_used = 0;
  69
  70         if (parc < 2) {
  71                 /* do nothing */
  72         } else if ((last_used + ConfigFileEntry.pace_wait) > rb_current_time() || !ratelimit_client(source_p, 6)) {
  73                 /* safe enough to give this on a local connect only */
  74                 sendto_one(source_p, form_str(RPL_LOAD2HI),
  75                            me.name, source_p->name, "MOTD");
  76                 sendto_one(source_p, form_str(RPL_ENDOFMOTD),
  77                            me.name, source_p->name);
  78                 return;
  79         } else {
  80                 last_used = rb_current_time();
  81         }
  82
  83         if(hunt_server(client_p, source_p, ":%s MOTD :%s", 1, parc, parv) != HUNTED_ISME)
  84                 return;
  85
  86         motd_spy(source_p);
  87         send_user_motd(source_p);
  88 }
  89
  90 /*
  91 ** mo_motd
  92 **      parv[1] = servername
  93 */
  94 static void
  95 mo_motd(struct MsgBuf *msgbuf_p, struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
  96 {
  97         if(hunt_server(client_p, source_p, ":%s MOTD :%s", 1, parc, parv) != HUNTED_ISME)
  98                 return;
  99
 100         motd_spy(source_p);
 101         send_user_motd(source_p);
 102 }
 103
 104 /* motd_spy()
 105  *
 106  * input        - pointer to client
 107  * output       - none
 108  * side effects - hook doing_motd is called
 109  */
 110 static void
 111 motd_spy(struct Client *source_p)
 112 {
 113         hook_data data;
 114
 115         data.client = source_p;
 116         data.arg1 = data.arg2 = NULL;
 117
 118         call_hook(doing_motd_hook, &data);
 119 }