modules/m_testline.c

   1 /* modules/m_testline.c
   2  *
   3  *  Copyright (C) 2004 Lee Hardy <lee@leeh.co.uk>
   4  *  Copyright (C) 2004-2005 ircd-ratbox development team
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions are
   8  * met:
   9  *
  10  * 1.Redistributions of source code must retain the above copyright notice,
  11  *   this list of conditions and the following disclaimer.
  12  * 2.Redistributions in binary form must reproduce the above copyright
  13  *   notice, this list of conditions and the following disclaimer in the
  14  *   documentation and/or other materials provided with the distribution.
  15  * 3.The name of the author may not be used to endorse or promote products
  16  *   derived from this software without specific prior written permission.
  17  *
  18  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  19  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  20  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  21  * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
  22  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
  23  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
  24  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  25  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
  26  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
  27  * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  28  * POSSIBILITY OF SUCH DAMAGE.
  29  */
  30 #include "stdinc.h"
  31 #include "send.h"
  32 #include "client.h"
  33 #include "modules.h"
  34 #include "msg.h"
  35 #include "hash.h"
  36 #include "hostmask.h"
  37 #include "numeric.h"
  38 #include "s_conf.h"
  39 #include "s_newconf.h"
  40 #include "reject.h"
  41
  42 static const char testline_desc[] = "Provides the ability to test I/K/D/X lines and RESVs";
  43
  44 static void mo_testline(struct MsgBuf *, struct Client *, struct Client *, int, const char **);
  45 static void mo_testgecos(struct MsgBuf *, struct Client *, struct Client *, int, const char **);
  46
  47 struct Message testline_msgtab = {
  48         "TESTLINE", 0, 0, 0, 0,
  49         {mg_unreg, mg_not_oper, mg_ignore, mg_ignore, mg_ignore, {mo_testline, 2}}
  50 };
  51 struct Message testgecos_msgtab = {
  52         "TESTGECOS", 0, 0, 0, 0,
  53         {mg_unreg, mg_not_oper, mg_ignore, mg_ignore, mg_ignore, {mo_testgecos, 2}}
  54 };
  55
  56 mapi_clist_av1 testline_clist[] = { &testline_msgtab, &testgecos_msgtab, NULL };
  57
  58 DECLARE_MODULE_AV2(testline, NULL, NULL, testline_clist, NULL, NULL, NULL, NULL, testline_desc);
  59
  60 static void
  61 mo_testline(struct MsgBuf *msgbuf_p, struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
  62 {
  63         struct ConfItem *aconf;
  64         struct ConfItem *resv_p;
  65         struct rb_sockaddr_storage ip;
  66         char user_trunc[USERLEN + 1], notildeuser_trunc[USERLEN + 1];
  67         const char *name = NULL;
  68         const char *username = NULL;
  69         const char *host = NULL;
  70         char *mask;
  71         char *p;
  72         int host_mask;
  73         int type;
  74         int duration;
  75         char *puser, *phost, *reason, *operreason;
  76         char reasonbuf[BUFSIZE];
  77
  78         mask = LOCAL_COPY(parv[1]);
  79
  80         if (IsChannelName(mask))
  81         {
  82                 resv_p = hash_find_resv(mask);
  83                 if (resv_p != NULL)
  84                 {
  85                         sendto_one(source_p, form_str(RPL_TESTLINE),
  86                                         me.name, source_p->name,
  87                                         resv_p->hold ? 'q' : 'Q',
  88                                         resv_p->hold ? (long) ((resv_p->hold - rb_current_time()) / 60) : 0L,
  89                                         resv_p->host, resv_p->passwd);
  90                         /* this is a false positive, so make sure it isn't counted in stats q
  91                          * --nenolod
  92                          */
  93                         resv_p->port--;
  94                 }
  95                 else
  96                         sendto_one(source_p, form_str(RPL_NOTESTLINE),
  97                                         me.name, source_p->name, parv[1]);
  98                 return;
  99         }
 100
 101         if((p = strchr(mask, '!')))
 102         {
 103                 *p++ = '\0';
 104                 name = mask;
 105                 mask = p;
 106
 107                 if(EmptyString(mask))
 108                         return;
 109         }
 110
 111         if((p = strchr(mask, '@')))
 112         {
 113                 *p++ = '\0';
 114                 username = mask;
 115                 host = p;
 116
 117                 if(EmptyString(host))
 118                         return;
 119         }
 120         else
 121                 host = mask;
 122
 123         /* parses as an IP, check for a dline */
 124         if((type = parse_netmask(host, &ip, &host_mask)) != HM_HOST)
 125         {
 126                 if(type == HM_IPV6)
 127                         aconf = find_dline((struct sockaddr *)&ip, AF_INET6);
 128                 else
 129                         aconf = find_dline((struct sockaddr *)&ip, AF_INET);
 130
 131                 if(aconf && aconf->status & CONF_DLINE)
 132                 {
 133                         get_printable_kline(source_p, aconf, &phost, &reason, &puser, &operreason);
 134                         snprintf(reasonbuf, sizeof(reasonbuf), "%s%s%s", reason,
 135                                 operreason ? "|" : "", operreason ? operreason : "");
 136                         sendto_one(source_p, form_str(RPL_TESTLINE),
 137                                 me.name, source_p->name,
 138                                 (aconf->flags & CONF_FLAGS_TEMPORARY) ? 'd' : 'D',
 139                                 (aconf->flags & CONF_FLAGS_TEMPORARY) ?
 140                                  (long) ((aconf->hold - rb_current_time()) / 60) : 0L,
 141                                 phost, reasonbuf);
 142
 143                         return;
 144                 }
 145                 /* Otherwise, aconf is an exempt{} */
 146                 if(aconf == NULL &&
 147                                 (duration = is_reject_ip((struct sockaddr *)&ip)))
 148                         sendto_one(source_p, form_str(RPL_TESTLINE),
 149                                         me.name, source_p->name,
 150                                         '!',
 151                                         duration / 60L,
 152                                         host, "Reject cache");
 153                 if(aconf == NULL &&
 154                                 (duration = is_throttle_ip((struct sockaddr *)&ip)))
 155                         sendto_one(source_p, form_str(RPL_TESTLINE),
 156                                         me.name, source_p->name,
 157                                         '!',
 158                                         duration / 60L,
 159                                         host, "Throttled");
 160         }
 161
 162         if (username != NULL)
 163         {
 164                 rb_strlcpy(user_trunc, username, sizeof user_trunc);
 165                 rb_strlcpy(notildeuser_trunc, *username == '~' ? username + 1 : username, sizeof notildeuser_trunc);
 166         }
 167         else
 168         {
 169                 rb_strlcpy(user_trunc, "dummy", sizeof user_trunc);
 170                 rb_strlcpy(notildeuser_trunc, "dummy", sizeof notildeuser_trunc);
 171         }
 172         /* now look for a matching I/K/G */
 173         if((aconf = find_address_conf(host, NULL, user_trunc, notildeuser_trunc,
 174                                 (type != HM_HOST) ? (struct sockaddr *)&ip : NULL,
 175                                 (type != HM_HOST) ? (
 176                                  (type == HM_IPV6) ? AF_INET6 :
 177                                   AF_INET) : 0, NULL)))
 178         {
 179                 static char buf[HOSTLEN+USERLEN+2];
 180
 181                 if(aconf->status & CONF_KILL)
 182                 {
 183                         get_printable_kline(source_p, aconf, &phost, &reason, &puser, &operreason);
 184                         snprintf(buf, sizeof(buf), "%s@%s",
 185                                         puser, phost);
 186                         snprintf(reasonbuf, sizeof(reasonbuf), "%s%s%s", reason,
 187                                 operreason ? "|" : "", operreason ? operreason : "");
 188                         sendto_one(source_p, form_str(RPL_TESTLINE),
 189                                 me.name, source_p->name,
 190                                 (aconf->flags & CONF_FLAGS_TEMPORARY) ? 'k' : 'K',
 191                                 (aconf->flags & CONF_FLAGS_TEMPORARY) ?
 192                                  (long) ((aconf->hold - rb_current_time()) / 60) : 0L,
 193                                 buf, reasonbuf);
 194                         return;
 195                 }
 196         }
 197
 198         /* they asked us to check a nick, so hunt for resvs.. */
 199         if(name && (resv_p = find_nick_resv(name)))
 200         {
 201                 sendto_one(source_p, form_str(RPL_TESTLINE),
 202                                 me.name, source_p->name,
 203                                 resv_p->hold ? 'q' : 'Q',
 204                                 resv_p->hold ? (long) ((resv_p->hold - rb_current_time()) / 60) : 0L,
 205                                 resv_p->host, resv_p->passwd);
 206
 207                 /* this is a false positive, so make sure it isn't counted in stats q
 208                  * --nenolod
 209                  */
 210                 resv_p->port--;
 211                 return;
 212         }
 213
 214         /* no matching resv, we can print the I: if it exists */
 215         if(aconf && aconf->status & CONF_CLIENT)
 216         {
 217                 sendto_one_numeric(source_p, RPL_STATSILINE, form_str(RPL_STATSILINE),
 218                                 aconf->info.name, EmptyString(aconf->spasswd) ? "<NULL>" : aconf->spasswd,
 219                                 show_iline_prefix(source_p, aconf, aconf->user),
 220                                 aconf->host, aconf->port, aconf->className);
 221                 return;
 222         }
 223
 224         /* nothing matches.. */
 225         sendto_one(source_p, form_str(RPL_NOTESTLINE),
 226                         me.name, source_p->name, parv[1]);
 227 }
 228
 229 static void
 230 mo_testgecos(struct MsgBuf *msgbuf_p, struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
 231 {
 232         struct ConfItem *aconf;
 233
 234         if(!(aconf = find_xline(parv[1], 0)))
 235         {
 236                 sendto_one(source_p, form_str(RPL_NOTESTLINE),
 237                                 me.name, source_p->name, parv[1]);
 238                 return;
 239         }
 240
 241         sendto_one(source_p, form_str(RPL_TESTLINE),
 242                         me.name, source_p->name,
 243                         aconf->hold ? 'x' : 'X',
 244                         aconf->hold ? (long) ((aconf->hold - rb_current_time()) / 60) : 0L,
 245                         aconf->host, aconf->passwd);
 246 }