extensions/m_sendbans.c

   1 /*
   2  * m_sendbans.c: sends all permanent resvs and xlines to given server
   3  *
   4  * Copyright (C) 2008 Jilles Tjoelker
   5  * Copyright (C) 2008 charybdis development team
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions are
   9  * met:
  10  *
  11  * 1.Redistributions of source code must retain the above copyright notice,
  12  *   this list of conditions and the following disclaimer.
  13  * 2.Redistributions in binary form must reproduce the above copyright
  14  *   notice, this list of conditions and the following disclaimer in the
  15  *   documentation and/or other materials provided with the distribution.
  16  * 3.The name of the author may not be used to endorse or promote products
  17  *   derived from this software without specific prior written permission.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  20  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  21  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  22  * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
  23  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
  24  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
  25  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
  27  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
  28  * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  29  * POSSIBILITY OF SUCH DAMAGE.
  30  */
  31
  32 #include "stdinc.h"
  33 #include "client.h"
  34 #include "common.h"
  35 #include "ircd.h"
  36 #include "match.h"
  37 #include "numeric.h"
  38 #include "s_conf.h"
  39 #include "s_serv.h"
  40 #include "s_newconf.h"
  41 #include "send.h"
  42 #include "msg.h"
  43 #include "hash.h"
  44 #include "modules.h"
  45 #include "messages.h"
  46 #include "rb_radixtree.h"
  47
  48 static int mo_sendbans(struct MsgBuf *msgbuf_p, struct Client *client_p, struct Client *source_p, int parc, const char *parv[]);
  49
  50 struct Message sendbans_msgtab = {
  51         "SENDBANS", 0, 0, 0, 0,
  52         {mg_unreg, mg_not_oper, mg_ignore, mg_ignore, mg_ignore, {mo_sendbans, 2}}
  53 };
  54
  55 mapi_clist_av1 sendbans_clist[] = {
  56         &sendbans_msgtab,
  57         NULL
  58 };
  59
  60 static const char sendbands_desc[] =
  61         "Adds the ability to send all permanent RESVs and XLINEs to given server";
  62
  63 DECLARE_MODULE_AV2(sendbans, NULL, NULL, sendbans_clist, NULL, NULL, NULL, NULL, sendbands_desc);
  64
  65 static const char *expand_xline(const char *mask)
  66 {
  67         static char buf[512];
  68         const char *p;
  69         char *q;
  70
  71         if (!strchr(mask, ' '))
  72                 return mask;
  73         if (strlen(mask) > 250)
  74                 return NULL;
  75         p = mask;
  76         q = buf;
  77         while (*p != '\0')
  78         {
  79                 if (*p == ' ')
  80                         *q++ = '\\', *q++ = 's';
  81                 else
  82                         *q++ = *p;
  83                 p++;
  84         }
  85         *q = '\0';
  86         return buf;
  87 }
  88
  89 static int mo_sendbans(struct MsgBuf *msgbuf_p, struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
  90 {
  91         struct ConfItem *aconf;
  92         rb_dlink_node *ptr;
  93         int i, count;
  94         const char *target, *mask2;
  95         struct Client *server_p;
  96         struct rb_radixtree_iteration_state state;
  97
  98         if (!IsOperRemoteBan(source_p))
  99         {
 100                 sendto_one(source_p, form_str(ERR_NOPRIVS),
 101                         me.name, source_p->name, "remoteban");
 102                 return 0;
 103         }
 104         if (!IsOperXline(source_p))
 105         {
 106                 sendto_one(source_p, form_str(ERR_NOPRIVS),
 107                         me.name, source_p->name, "xline");
 108                 return 0;
 109         }
 110         if (!IsOperResv(source_p))
 111         {
 112                 sendto_one(source_p, form_str(ERR_NOPRIVS),
 113                         me.name, source_p->name, "resv");
 114                 return 0;
 115         }
 116
 117         target = parv[1];
 118         count = 0;
 119         RB_DLINK_FOREACH(ptr, global_serv_list.head)
 120         {
 121                 server_p = ptr->data;
 122                 if (IsMe(server_p))
 123                         continue;
 124                 if (match(target, server_p->name))
 125                         count++;
 126         }
 127         if (count == 0)
 128         {
 129                 sendto_one_numeric(source_p, ERR_NOSUCHSERVER,
 130                                 form_str(ERR_NOSUCHSERVER), target);
 131                 return 0;
 132         }
 133
 134         sendto_realops_snomask(SNO_GENERAL, L_NETWIDE,
 135                         "%s!%s@%s is sending resvs and xlines to %s",
 136                         source_p->name, source_p->username, source_p->host,
 137                         target);
 138
 139         RB_DLINK_FOREACH(ptr, resv_conf_list.head)
 140         {
 141                 aconf = ptr->data;
 142                 if (aconf->hold)
 143                         continue;
 144                 sendto_match_servs(source_p, target,
 145                                 CAP_ENCAP, NOCAPS,
 146                                 "ENCAP %s RESV 0 %s 0 :%s",
 147                                 target, aconf->host, aconf->passwd);
 148         }
 149
 150         RB_RADIXTREE_FOREACH(aconf, &state, resv_tree)
 151         {
 152                 if (aconf->hold)
 153                         continue;
 154                 sendto_match_servs(source_p, target,
 155                                 CAP_ENCAP, NOCAPS,
 156                                 "ENCAP %s RESV 0 %s 0 :%s",
 157                                 target, aconf->host, aconf->passwd);
 158         }
 159
 160         RB_DLINK_FOREACH(ptr, xline_conf_list.head)
 161         {
 162                 aconf = ptr->data;
 163                 if (aconf->hold)
 164                         continue;
 165                 mask2 = expand_xline(aconf->host);
 166                 if (mask2 == NULL)
 167                 {
 168                         sendto_one_notice(source_p, ":Skipping xline [%s]",
 169                                         aconf->host);
 170                         continue;
 171                 }
 172                 sendto_match_servs(source_p, target,
 173                                 CAP_ENCAP, NOCAPS,
 174                                 "ENCAP %s XLINE 0 %s 2 :%s",
 175                                 target, mask2, aconf->passwd);
 176         }
 177
 178         return 0;
 179 }