modules/m_restart.c

   1 /* {{{ irc-seven: Cows like it.
   2  *
   3  * Copyright (C) 1990 Jarkko Oikarinen and University of Oulu, Co Center
   4  * Copyright (C) 1996-2002 Hybrid Development Team
   5  * Copyright (C) 2002-2005 ircd-ratbox development team
   6  * Copyright (c) 2006 Elfyn McBratney.
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License as published by
  10  * the Free Software Foundation; either version 2 of the License, or
  11  * (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to:
  20  *
  21  *      Free Software Foundation, Inc.
  22  *      51 Franklin St - Fifth Floor
  23  *      Boston, MA 02110-1301
  24  *      USA
  25  *
  26  * }}} */
  27
  28 /* {{{ Includes. */
  29 #include "stdinc.h"
  30 #include "client.h"
  31 #include "common.h"
  32 #include "irc_string.h"
  33 #include "sprintf_irc.h"
  34 #include "ircd.h"
  35 #include "numeric.h"
  36 #include "s_conf.h"
  37 #include "s_newconf.h"
  38 #include "s_log.h"
  39 #include "s_serv.h"
  40 #include "restart.h"
  41 #include "send.h"
  42 #include "msg.h"
  43 #include "parse.h"
  44 #include "modules.h"
  45 #include "hash.h"
  46 /* }}} */
  47
  48 static int mo_restart (struct Client *, struct Client *, int, const char **);
  49 static int me_restart (struct Client *, struct Client *, int, const char **);
  50
  51 static int do_restart (struct Client *, const char *, uint8_t);
  52
  53 /* {{{ struct Message restart_msgtab = { ... } */
  54 struct Message restart_msgtab =
  55 {
  56         "RESTART", 0, 0, 0, MFLG_SLOW,
  57         {
  58                 mg_unreg, mg_not_oper, mg_ignore,
  59                 mg_ignore, {me_restart, 0}, {mo_restart, 0},
  60         },
  61 };
  62 /* }}} */
  63
  64 mapi_clist_av1 restart_clist[] =
  65 {
  66         &restart_msgtab,
  67         NULL,
  68 };
  69
  70 /* {{{ DECLARE_MODULE_AV1(...) */
  71 DECLARE_MODULE_AV1
  72 (
  73         restart,
  74         NULL,
  75         NULL,
  76         restart_clist,
  77         NULL,
  78         NULL,
  79         "$Revision: 195 $"
  80 );
  81 /* }}} */
  82
  83 /* {{{ mo_restart()
  84  *
  85  * RESTART message handler.
  86  *
  87  * Usage:
  88  *      RESTART <target>
  89  *
  90  * parv[0] - prefix
  91  * parv[1] - target
  92  */
  93 static int
  94 mo_restart (struct Client *client_p, struct Client *source_p, int parc, const char **parv)
  95 {
  96         uint8_t is_me;
  97
  98         if (!IsOperDie(source_p))
  99         {
 100                 sendto_one(source_p, form_str(ERR_NOPRIVS), me.name,
 101                         source_p->name, "die");
 102                 return 0;
 103         }
 104         else if (parc < 2 || EmptyString(parv[1]))
 105         {
 106                 sendto_one(source_p, form_str(ERR_NEEDMOREPARAMS), me.name,
 107                         source_p->name, "RESTART");
 108                 return 0;
 109         }
 110         else if (strchr(parv[1], '?') || strchr(parv[1], '*'))
 111         {
 112                 sendto_one(source_p,
 113                         ":%s NOTICE %s :Argument to RESTART cannot contain wildcards",
 114                         me.name, source_p->name);
 115                 return 0;
 116         }
 117         else if (!find_server(source_p, parv[1]))
 118         {
 119                 sendto_one_numeric(source_p, ERR_NOSUCHSERVER,
 120                         form_str(ERR_NOSUCHSERVER), parv[1]);
 121                 return 0;
 122         }
 123
 124         is_me = irccmp(parv[1], me.name) == 0 ? 1 : 0;
 125         if (!is_me && !ConfigFileEntry.remote_restart)
 126         {
 127                 sendto_one(source_p,
 128                         ":%s NOTICE %s :Argument to RESTART must local server name (%s)",
 129                         me.name, source_p->name, me.name);
 130                 return 0;
 131         }
 132
 133         return do_restart(source_p, parv[1], !is_me);
 134 }
 135 /* }}} */
 136
 137 /* {{{ me_restart()
 138  *
 139  * parv[0] - prefix
 140  */
 141 static int
 142 me_restart (struct Client *client_p, struct Client *source_p, int parc, const char **parv)
 143 {
 144         if (!IsPerson(source_p) || !ConfigFileEntry.remote_restart)
 145                 return 0;
 146         if (!find_client_shared_conf(source_p, SHARED_DIE))
 147                 return 0;
 148
 149         return do_restart(source_p, NULL, 0);
 150 }
 151 /* }}} */
 152
 153 /* {{{ do_restart()
 154  *
 155  * Restart local server or request that a remote server restart.
 156  */
 157 static int
 158 do_restart (struct Client *source_p, const char *target, uint8_t remote)
 159 {
 160         dlink_node      *cur = NULL;
 161         struct Client   *target_p = NULL;
 162         char            buf[BUFSIZE];
 163
 164         if (remote)
 165         {
 166                 sendto_realops_snomask(SNO_GENERAL, L_NETWIDE,
 167                         "%s is requesting restart of %s",
 168                         get_oper_name(source_p), target);
 169                 sendto_match_servs(source_p, target, CAP_ENCAP, NOCAPS,
 170                         "ENCAP %s RESTART", target);
 171
 172                 return 0;
 173         }
 174
 175         sendto_realops_snomask(SNO_GENERAL, L_NETWIDE, "%s is restarting %s...",
 176                 get_oper_name(source_p), me.name);
 177
 178         DLINK_FOREACH (cur, lclient_list.head)
 179         {
 180                 target_p = cur->data;
 181                 sendto_one(target_p,
 182                         ":%s NOTICE %s :Server Restarting.",
 183                         me.name, target_p->name);
 184         }
 185
 186         DLINK_FOREACH (cur, serv_list.head)
 187         {
 188                 target_p = cur->data;
 189                 sendto_one(target_p, ":%s ERROR :Restart by %s",
 190                         me.name, get_client_name(source_p, HIDE_IP));
 191         }
 192
 193         ircsprintf(buf, "Server RESTART by %s", get_client_name(source_p, HIDE_IP));
 194         restart(buf);
 195
 196         return 0;
 197 }
 198 /* }}} */
 199
 200 /*
 201  * vim: ts=8 sw=8 noet fdm=marker tw=80
 202  */