modules/m_resv.c

   1 /*
   2  *  ircd-ratbox: A slightly useful ircd.
   3  *  m_resv.c: Reserves(jupes) a nickname or channel.
   4  *
   5  *  Copyright (C) 2001-2002 Hybrid Development Team
   6  *  Copyright (C) 2002-2005 ircd-ratbox development team
   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 the Free Software
  20  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307
  21  *  USA
  22  *
  23  *  $Id$
  24  */
  25
  26 #include "stdinc.h"
  27 #include "client.h"
  28 #include "channel.h"
  29 #include "ircd.h"
  30 #include "numeric.h"
  31 #include "s_serv.h"
  32 #include "send.h"
  33 #include "msg.h"
  34 #include "parse.h"
  35 #include "modules.h"
  36 #include "s_conf.h"
  37 #include "s_newconf.h"
  38 #include "hash.h"
  39 #include "logger.h"
  40 #include "bandbi.h"
  41
  42 static int mo_resv(struct Client *, struct Client *, int, const char **);
  43 static int ms_resv(struct Client *, struct Client *, int, const char **);
  44 static int me_resv(struct Client *, struct Client *, int, const char **);
  45 static int mo_unresv(struct Client *, struct Client *, int, const char **);
  46 static int ms_unresv(struct Client *, struct Client *, int, const char **);
  47 static int me_unresv(struct Client *, struct Client *, int, const char **);
  48
  49 struct Message resv_msgtab = {
  50         "RESV", 0, 0, 0, MFLG_SLOW | MFLG_UNREG,
  51         {mg_ignore, mg_not_oper, {ms_resv, 4}, {ms_resv, 4}, {me_resv, 5}, {mo_resv, 3}}
  52 };
  53
  54 struct Message unresv_msgtab = {
  55         "UNRESV", 0, 0, 0, MFLG_SLOW | MFLG_UNREG,
  56         {mg_ignore, mg_not_oper, {ms_unresv, 3}, {ms_unresv, 3}, {me_unresv, 2}, {mo_unresv, 2}}
  57 };
  58
  59 mapi_clist_av1 resv_clist[] = { &resv_msgtab, &unresv_msgtab, NULL };
  60
  61 DECLARE_MODULE_AV1(resv, NULL, NULL, resv_clist, NULL, NULL, "$Revision$");
  62
  63 static void parse_resv(struct Client *source_p, const char *name,
  64                        const char *reason, int temp_time);
  65 static void propagate_resv(struct Client *source_p, const char *target,
  66                            int temp_time, const char *name, const char *reason);
  67 static void cluster_resv(struct Client *source_p, int temp_time,
  68                          const char *name, const char *reason);
  69
  70 static void handle_remote_unresv(struct Client *source_p, const char *name);
  71 static void remove_resv(struct Client *source_p, const char *name);
  72
  73 /*
  74  * mo_resv()
  75  *      parv[0] = sender prefix
  76  *      parv[1] = channel/nick to forbid
  77  *      parv[2] = reason
  78  */
  79 static int
  80 mo_resv(struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
  81 {
  82         const char *name;
  83         const char *reason;
  84         const char *target_server = NULL;
  85         int temp_time;
  86         int loc = 1;
  87
  88         if(!IsOperResv(source_p))
  89         {
  90                 sendto_one(source_p, form_str(ERR_NOPRIVS), me.name, source_p->name, "resv");
  91                 return 0;
  92         }
  93
  94         /* RESV [time] <name> [ON <server>] :<reason> */
  95
  96         if((temp_time = valid_temp_time(parv[loc])) >= 0)
  97                 loc++;
  98         /* we just set temp_time to -1! */
  99         else
 100                 temp_time = 0;
 101
 102         name = parv[loc];
 103         loc++;
 104
 105         if((parc >= loc + 2) && (irccmp(parv[loc], "ON") == 0))
 106         {
 107                 if(!IsOperRemoteBan(source_p))
 108                 {
 109                         sendto_one(source_p, form_str(ERR_NOPRIVS),
 110                                    me.name, source_p->name, "remoteban");
 111                         return 0;
 112                 }
 113
 114                 target_server = parv[loc + 1];
 115                 loc += 2;
 116         }
 117
 118         if(parc <= loc || EmptyString(parv[loc]))
 119         {
 120                 sendto_one(source_p, form_str(ERR_NEEDMOREPARAMS), me.name, source_p->name, "RESV");
 121                 return 0;
 122         }
 123
 124         reason = parv[loc];
 125
 126         /* remote resv.. */
 127         if(target_server)
 128         {
 129                 propagate_resv(source_p, target_server, temp_time, name, reason);
 130
 131                 if(match(target_server, me.name) == 0)
 132                         return 0;
 133         }
 134         else if(rb_dlink_list_length(&cluster_conf_list) > 0)
 135                 cluster_resv(source_p, temp_time, name, reason);
 136
 137         parse_resv(source_p, name, reason, temp_time);
 138
 139         return 0;
 140 }
 141
 142 /* ms_resv()
 143  *     parv[0] = sender prefix
 144  *     parv[1] = target server
 145  *     parv[2] = channel/nick to forbid
 146  *     parv[3] = reason
 147  */
 148 static int
 149 ms_resv(struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
 150 {
 151         /* parv[0]  parv[1]        parv[2]  parv[3]
 152          * oper     target server  resv     reason
 153          */
 154         propagate_resv(source_p, parv[1], 0, parv[2], parv[3]);
 155
 156         if(!match(parv[1], me.name))
 157                 return 0;
 158
 159         if(!IsPerson(source_p))
 160                 return 0;
 161
 162         parse_resv(source_p, parv[2], parv[3], 0);
 163         return 0;
 164 }
 165
 166 static int
 167 me_resv(struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
 168 {
 169         /* time name 0 :reason */
 170         if(!IsPerson(source_p))
 171                 return 0;
 172
 173         parse_resv(source_p, parv[2], parv[4], atoi(parv[1]));
 174         return 0;
 175 }
 176
 177 /* parse_resv()
 178  *
 179  * inputs       - source_p if error messages wanted
 180  *              - thing to resv
 181  *              - reason for resv
 182  * outputs      -
 183  * side effects - will parse the resv and create it if valid
 184  */
 185 static void
 186 parse_resv(struct Client *source_p, const char *name, const char *reason, int temp_time)
 187 {
 188         struct ConfItem *aconf;
 189
 190         if(!MyClient(source_p) &&
 191            !find_shared_conf(source_p->username, source_p->host,
 192                              source_p->servptr->name,
 193                              (temp_time > 0) ? SHARED_TRESV : SHARED_PRESV))
 194                 return;
 195
 196         if(IsChannelName(name))
 197         {
 198                 if(hash_find_resv(name))
 199                 {
 200                         sendto_one_notice(source_p,
 201                                           ":A RESV has already been placed on channel: %s", name);
 202                         return;
 203                 }
 204
 205                 if(strlen(name) > CHANNELLEN)
 206                 {
 207                         sendto_one_notice(source_p, ":Invalid RESV length: %s", name);
 208                         return;
 209                 }
 210
 211                 if(strchr(reason, '"'))
 212                 {
 213                         sendto_one_notice(source_p, ":Invalid character '\"' in comment");
 214                         return;
 215                 }
 216
 217                 aconf = make_conf();
 218                 aconf->status = CONF_RESV_CHANNEL;
 219                 aconf->port = 0;
 220                 aconf->host = rb_strdup(name);
 221                 aconf->passwd = rb_strdup(reason);
 222                 add_to_resv_hash(aconf->host, aconf);
 223
 224                 if(temp_time > 0)
 225                 {
 226                         aconf->hold = rb_current_time() + temp_time;
 227
 228                         sendto_realops_snomask(SNO_GENERAL, L_ALL,
 229                                                "%s added temporary %d min. RESV for [%s] [%s]",
 230                                                get_oper_name(source_p), temp_time / 60,
 231                                                name, reason);
 232                         ilog(L_KLINE, "R %s %d %s %s",
 233                              get_oper_name(source_p), temp_time / 60, name, reason);
 234                         sendto_one_notice(source_p, ":Added temporary %d min. RESV [%s]",
 235                                           temp_time / 60, name);
 236                 }
 237                 else
 238                 {
 239                         sendto_realops_snomask(SNO_GENERAL, L_ALL,
 240                                                "%s added RESV for [%s] [%s]",
 241                                                get_oper_name(source_p), name, reason);
 242                         ilog(L_KLINE, "R %s 0 %s %s",
 243                              get_oper_name(source_p), name, reason);
 244                         sendto_one_notice(source_p, ":Added RESV [%s]", name);
 245
 246                         bandb_add(BANDB_RESV, source_p, aconf->host, NULL, aconf->passwd, NULL, 0);
 247                 }
 248         }
 249         else if(clean_resv_nick(name))
 250         {
 251                 if(strlen(name) > NICKLEN * 2)
 252                 {
 253                         sendto_one_notice(source_p, ":Invalid RESV length: %s", name);
 254                         return;
 255                 }
 256
 257                 if(strchr(reason, '"'))
 258                 {
 259                         sendto_one_notice(source_p, ":Invalid character '\"' in comment");
 260                         return;
 261                 }
 262
 263                 if(!valid_wild_card_simple(name))
 264                 {
 265                         sendto_one_notice(source_p,
 266                                           ":Please include at least %d non-wildcard "
 267                                           "characters with the resv",
 268                                           ConfigFileEntry.min_nonwildcard_simple);
 269                         return;
 270                 }
 271
 272                 if(find_nick_resv_mask(name))
 273                 {
 274                         sendto_one_notice(source_p,
 275                                           ":A RESV has already been placed on nick: %s", name);
 276                         return;
 277                 }
 278
 279                 aconf = make_conf();
 280                 aconf->status = CONF_RESV_NICK;
 281                 aconf->port = 0;
 282                 aconf->host = rb_strdup(name);
 283                 aconf->passwd = rb_strdup(reason);
 284                 rb_dlinkAddAlloc(aconf, &resv_conf_list);
 285
 286                 if(temp_time > 0)
 287                 {
 288                         aconf->hold = rb_current_time() + temp_time;
 289
 290                         sendto_realops_snomask(SNO_GENERAL, L_ALL,
 291                                                "%s added temporary %d min. RESV for [%s] [%s]",
 292                                                get_oper_name(source_p), temp_time / 60,
 293                                                name, reason);
 294                         ilog(L_KLINE, "R %s %d %s %s",
 295                              get_oper_name(source_p), temp_time / 60, name, reason);
 296                         sendto_one_notice(source_p, ":Added temporary %d min. RESV [%s]",
 297                                           temp_time / 60, name);
 298                 }
 299                 else
 300                 {
 301                         sendto_realops_snomask(SNO_GENERAL, L_ALL,
 302                                                "%s added RESV for [%s] [%s]",
 303                                                get_oper_name(source_p), name, reason);
 304                         ilog(L_KLINE, "R %s 0 %s %s",
 305                              get_oper_name(source_p), name, reason);
 306                         sendto_one_notice(source_p, ":Added RESV [%s]", name);
 307
 308                         bandb_add(BANDB_RESV, source_p, aconf->host, NULL, aconf->passwd, NULL, 0);
 309                 }
 310         }
 311         else
 312                 sendto_one_notice(source_p, ":You have specified an invalid resv: [%s]", name);
 313 }
 314
 315 static void
 316 propagate_resv(struct Client *source_p, const char *target,
 317                int temp_time, const char *name, const char *reason)
 318 {
 319         if(!temp_time)
 320         {
 321                 sendto_match_servs(source_p, target,
 322                                    CAP_CLUSTER, NOCAPS, "RESV %s %s :%s", target, name, reason);
 323                 sendto_match_servs(source_p, target,
 324                                    CAP_ENCAP, CAP_CLUSTER,
 325                                    "ENCAP %s RESV %d %s 0 :%s", target, temp_time, name, reason);
 326         }
 327         else
 328                 sendto_match_servs(source_p, target,
 329                                    CAP_ENCAP, NOCAPS,
 330                                    "ENCAP %s RESV %d %s 0 :%s", target, temp_time, name, reason);
 331 }
 332
 333 static void
 334 cluster_resv(struct Client *source_p, int temp_time, const char *name, const char *reason)
 335 {
 336         struct remote_conf *shared_p;
 337         rb_dlink_node *ptr;
 338
 339         RB_DLINK_FOREACH(ptr, cluster_conf_list.head)
 340         {
 341                 shared_p = ptr->data;
 342
 343                 /* old protocol cant handle temps, and we dont really want
 344                  * to convert them to perm.. --fl
 345                  */
 346                 if(!temp_time)
 347                 {
 348                         if(!(shared_p->flags & SHARED_PRESV))
 349                                 continue;
 350
 351                         sendto_match_servs(source_p, shared_p->server,
 352                                            CAP_CLUSTER, NOCAPS,
 353                                            "RESV %s %s :%s", shared_p->server, name, reason);
 354                         sendto_match_servs(source_p, shared_p->server,
 355                                            CAP_ENCAP, CAP_CLUSTER,
 356                                            "ENCAP %s RESV 0 %s 0 :%s",
 357                                            shared_p->server, name, reason);
 358                 }
 359                 else if(shared_p->flags & SHARED_TRESV)
 360                         sendto_match_servs(source_p, shared_p->server,
 361                                            CAP_ENCAP, NOCAPS,
 362                                            "ENCAP %s RESV %d %s 0 :%s",
 363                                            shared_p->server, temp_time, name, reason);
 364         }
 365 }
 366
 367
 368 /*
 369  * mo_unresv()
 370  *     parv[0] = sender prefix
 371  *     parv[1] = channel/nick to unforbid
 372  */
 373 static int
 374 mo_unresv(struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
 375 {
 376         if(!IsOperResv(source_p))
 377         {
 378                 sendto_one(source_p, form_str(ERR_NOPRIVS), me.name, source_p->name, "resv");
 379                 return 0;
 380         }
 381
 382         if((parc == 4) && (irccmp(parv[2], "ON") == 0))
 383         {
 384                 if(!IsOperRemoteBan(source_p))
 385                 {
 386                         sendto_one(source_p, form_str(ERR_NOPRIVS),
 387                                    me.name, source_p->name, "remoteban");
 388                         return 0;
 389                 }
 390
 391                 propagate_generic(source_p, "UNRESV", parv[3], CAP_CLUSTER, "%s", parv[1]);
 392
 393                 if(match(parv[3], me.name) == 0)
 394                         return 0;
 395         }
 396         else if(rb_dlink_list_length(&cluster_conf_list) > 0)
 397                 cluster_generic(source_p, "UNRESV", SHARED_UNRESV, CAP_CLUSTER, "%s", parv[1]);
 398
 399         remove_resv(source_p, parv[1]);
 400         return 0;
 401 }
 402
 403 /* ms_unresv()
 404  *     parv[0] = sender prefix
 405  *     parv[1] = target server
 406  *     parv[2] = resv to remove
 407  */
 408 static int
 409 ms_unresv(struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
 410 {
 411         /* parv[0]  parv[1]        parv[2]
 412          * oper     target server  resv to remove
 413          */
 414         propagate_generic(source_p, "UNRESV", parv[1], CAP_CLUSTER, "%s", parv[2]);
 415
 416         if(!match(parv[1], me.name))
 417                 return 0;
 418
 419         if(!IsPerson(source_p))
 420                 return 0;
 421
 422         handle_remote_unresv(source_p, parv[2]);
 423         return 0;
 424 }
 425
 426 static int
 427 me_unresv(struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
 428 {
 429         /* name */
 430         if(!IsPerson(source_p))
 431                 return 0;
 432
 433         handle_remote_unresv(source_p, parv[1]);
 434         return 0;
 435 }
 436
 437 static void
 438 handle_remote_unresv(struct Client *source_p, const char *name)
 439 {
 440         if(!find_shared_conf(source_p->username, source_p->host,
 441                              source_p->servptr->name, SHARED_UNRESV))
 442                 return;
 443
 444         remove_resv(source_p, name);
 445
 446         return;
 447 }
 448
 449 static void
 450 remove_resv(struct Client *source_p, const char *name)
 451 {
 452         struct ConfItem *aconf = NULL;
 453
 454         if(IsChannelName(name))
 455         {
 456                 if((aconf = hash_find_resv(name)) == NULL)
 457                 {
 458                         sendto_one_notice(source_p, ":No RESV for %s", name);
 459                         return;
 460                 }
 461
 462                 if(!aconf->hold)
 463                         bandb_del(BANDB_RESV, aconf->host, NULL);
 464                 else
 465                 {
 466                         sendto_one_notice(source_p, ":RESV for [%s] is removed", name);
 467                         sendto_realops_snomask(SNO_GENERAL, L_ALL,
 468                                                "%s has removed the RESV for: [%s]",
 469                                                get_oper_name(source_p), name);
 470                         ilog(L_KLINE, "UR %s %s", get_oper_name(source_p), name);
 471                 }
 472                 del_from_resv_hash(name, aconf);
 473         }
 474         else
 475         {
 476                 rb_dlink_node *ptr;
 477
 478                 RB_DLINK_FOREACH(ptr, resv_conf_list.head)
 479                 {
 480                         aconf = ptr->data;
 481
 482                         if(irccmp(aconf->host, name))
 483                                 aconf = NULL;
 484                         else
 485                                 break;
 486                 }
 487
 488                 if(aconf == NULL)
 489                 {
 490                         sendto_one_notice(source_p, ":No RESV for %s", name);
 491                         return;
 492                 }
 493
 494                 if(!aconf->hold)
 495                         bandb_del(BANDB_RESV, aconf->host, NULL);
 496                 else
 497                 {
 498                         sendto_one_notice(source_p, ":RESV for [%s] is removed", name);
 499                         sendto_realops_snomask(SNO_GENERAL, L_ALL,
 500                                                "%s has removed the RESV for: [%s]",
 501                                                get_oper_name(source_p), name);
 502                         ilog(L_KLINE, "UR %s %s", get_oper_name(source_p), name);
 503                 }
 504                 /* already have ptr from the loop above.. */
 505                 rb_dlinkDestroy(ptr, &resv_conf_list);
 506         }
 507         free_conf(aconf);
 508
 509         return;
 510 }