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                         bandb_add(BANDB_RESV, source_p, aconf->host, NULL, aconf->passwd, NULL, 0);
 239         }
 240         else if(clean_resv_nick(name))
 241         {
 242                 if(strlen(name) > NICKLEN * 2)
 243                 {
 244                         sendto_one_notice(source_p, ":Invalid RESV length: %s", name);
 245                         return;
 246                 }
 247
 248                 if(strchr(reason, '"'))
 249                 {
 250                         sendto_one_notice(source_p, ":Invalid character '\"' in comment");
 251                         return;
 252                 }
 253
 254                 if(!valid_wild_card_simple(name))
 255                 {
 256                         sendto_one_notice(source_p,
 257                                           ":Please include at least %d non-wildcard "
 258                                           "characters with the resv",
 259                                           ConfigFileEntry.min_nonwildcard_simple);
 260                         return;
 261                 }
 262
 263                 if(find_nick_resv_mask(name))
 264                 {
 265                         sendto_one_notice(source_p,
 266                                           ":A RESV has already been placed on nick: %s", name);
 267                         return;
 268                 }
 269
 270                 aconf = make_conf();
 271                 aconf->status = CONF_RESV_NICK;
 272                 aconf->port = 0;
 273                 aconf->host = rb_strdup(name);
 274                 aconf->passwd = rb_strdup(reason);
 275                 rb_dlinkAddAlloc(aconf, &resv_conf_list);
 276
 277                 if(temp_time > 0)
 278                 {
 279                         aconf->hold = rb_current_time() + temp_time;
 280
 281                         sendto_realops_snomask(SNO_GENERAL, L_ALL,
 282                                                "%s added temporary %d min. RESV for [%s] [%s]",
 283                                                get_oper_name(source_p), temp_time / 60,
 284                                                name, reason);
 285                         ilog(L_KLINE, "R %s %d %s %s",
 286                              get_oper_name(source_p), temp_time / 60, name, reason);
 287                         sendto_one_notice(source_p, ":Added temporary %d min. RESV [%s]",
 288                                           temp_time / 60, name);
 289                 }
 290                 else
 291                         bandb_add(BANDB_RESV, source_p, aconf->host, NULL, aconf->passwd, NULL, 0);
 292         }
 293         else
 294                 sendto_one_notice(source_p, ":You have specified an invalid resv: [%s]", name);
 295 }
 296
 297 static void
 298 propagate_resv(struct Client *source_p, const char *target,
 299                int temp_time, const char *name, const char *reason)
 300 {
 301         if(!temp_time)
 302         {
 303                 sendto_match_servs(source_p, target,
 304                                    CAP_CLUSTER, NOCAPS, "RESV %s %s :%s", target, name, reason);
 305                 sendto_match_servs(source_p, target,
 306                                    CAP_ENCAP, CAP_CLUSTER,
 307                                    "ENCAP %s RESV %d %s 0 :%s", target, temp_time, name, reason);
 308         }
 309         else
 310                 sendto_match_servs(source_p, target,
 311                                    CAP_ENCAP, NOCAPS,
 312                                    "ENCAP %s RESV %d %s 0 :%s", target, temp_time, name, reason);
 313 }
 314
 315 static void
 316 cluster_resv(struct Client *source_p, int temp_time, const char *name, const char *reason)
 317 {
 318         struct remote_conf *shared_p;
 319         rb_dlink_node *ptr;
 320
 321         RB_DLINK_FOREACH(ptr, cluster_conf_list.head)
 322         {
 323                 shared_p = ptr->data;
 324
 325                 /* old protocol cant handle temps, and we dont really want
 326                  * to convert them to perm.. --fl
 327                  */
 328                 if(!temp_time)
 329                 {
 330                         if(!(shared_p->flags & SHARED_PRESV))
 331                                 continue;
 332
 333                         sendto_match_servs(source_p, shared_p->server,
 334                                            CAP_CLUSTER, NOCAPS,
 335                                            "RESV %s %s :%s", shared_p->server, name, reason);
 336                         sendto_match_servs(source_p, shared_p->server,
 337                                            CAP_ENCAP, CAP_CLUSTER,
 338                                            "ENCAP %s RESV 0 %s 0 :%s",
 339                                            shared_p->server, name, reason);
 340                 }
 341                 else if(shared_p->flags & SHARED_TRESV)
 342                         sendto_match_servs(source_p, shared_p->server,
 343                                            CAP_ENCAP, NOCAPS,
 344                                            "ENCAP %s RESV %d %s 0 :%s",
 345                                            shared_p->server, temp_time, name, reason);
 346         }
 347 }
 348
 349
 350 /*
 351  * mo_unresv()
 352  *     parv[0] = sender prefix
 353  *     parv[1] = channel/nick to unforbid
 354  */
 355 static int
 356 mo_unresv(struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
 357 {
 358         if(!IsOperResv(source_p))
 359         {
 360                 sendto_one(source_p, form_str(ERR_NOPRIVS), me.name, source_p->name, "resv");
 361                 return 0;
 362         }
 363
 364         if((parc == 4) && (irccmp(parv[2], "ON") == 0))
 365         {
 366                 if(!IsOperRemoteBan(source_p))
 367                 {
 368                         sendto_one(source_p, form_str(ERR_NOPRIVS),
 369                                    me.name, source_p->name, "remoteban");
 370                         return 0;
 371                 }
 372
 373                 propagate_generic(source_p, "UNRESV", parv[3], CAP_CLUSTER, "%s", parv[1]);
 374
 375                 if(match(parv[3], me.name) == 0)
 376                         return 0;
 377         }
 378         else if(rb_dlink_list_length(&cluster_conf_list) > 0)
 379                 cluster_generic(source_p, "UNRESV", SHARED_UNRESV, CAP_CLUSTER, "%s", parv[1]);
 380
 381         remove_resv(source_p, parv[1]);
 382         return 0;
 383 }
 384
 385 /* ms_unresv()
 386  *     parv[0] = sender prefix
 387  *     parv[1] = target server
 388  *     parv[2] = resv to remove
 389  */
 390 static int
 391 ms_unresv(struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
 392 {
 393         /* parv[0]  parv[1]        parv[2]
 394          * oper     target server  resv to remove
 395          */
 396         propagate_generic(source_p, "UNRESV", parv[1], CAP_CLUSTER, "%s", parv[2]);
 397
 398         if(!match(parv[1], me.name))
 399                 return 0;
 400
 401         if(!IsPerson(source_p))
 402                 return 0;
 403
 404         handle_remote_unresv(source_p, parv[2]);
 405         return 0;
 406 }
 407
 408 static int
 409 me_unresv(struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
 410 {
 411         /* name */
 412         if(!IsPerson(source_p))
 413                 return 0;
 414
 415         handle_remote_unresv(source_p, parv[1]);
 416         return 0;
 417 }
 418
 419 static void
 420 handle_remote_unresv(struct Client *source_p, const char *name)
 421 {
 422         if(!find_shared_conf(source_p->username, source_p->host,
 423                              source_p->servptr->name, SHARED_UNRESV))
 424                 return;
 425
 426         remove_resv(source_p, name);
 427
 428         return;
 429 }
 430
 431 static void
 432 remove_resv(struct Client *source_p, const char *name)
 433 {
 434         struct ConfItem *aconf = NULL;
 435
 436         if(IsChannelName(name))
 437         {
 438                 if((aconf = hash_find_resv(name)) == NULL)
 439                 {
 440                         sendto_one_notice(source_p, ":No RESV for %s", name);
 441                         return;
 442                 }
 443
 444                 if(!aconf->hold)
 445                         bandb_del(BANDB_RESV, aconf->host, NULL);
 446                 else
 447                 {
 448                         sendto_one_notice(source_p, ":RESV for [%s] is removed", name);
 449                         sendto_realops_snomask(SNO_GENERAL, L_ALL,
 450                                                "%s has removed the RESV for: [%s]",
 451                                                get_oper_name(source_p), name);
 452                         ilog(L_KLINE, "UR %s %s", get_oper_name(source_p), name);
 453                 }
 454                 del_from_resv_hash(name, aconf);
 455         }
 456         else
 457         {
 458                 rb_dlink_node *ptr;
 459
 460                 RB_DLINK_FOREACH(ptr, resv_conf_list.head)
 461                 {
 462                         aconf = ptr->data;
 463
 464                         if(irccmp(aconf->host, name))
 465                                 aconf = NULL;
 466                         else
 467                                 break;
 468                 }
 469
 470                 if(aconf == NULL)
 471                 {
 472                         sendto_one_notice(source_p, ":No RESV for %s", name);
 473                         return;
 474                 }
 475
 476                 if(!aconf->hold)
 477                         bandb_del(BANDB_RESV, aconf->host, NULL);
 478                 else
 479                 {
 480                         sendto_one_notice(source_p, ":RESV for [%s] is removed", name);
 481                         sendto_realops_snomask(SNO_GENERAL, L_ALL,
 482                                                "%s has removed the RESV for: [%s]",
 483                                                get_oper_name(source_p), name);
 484                         ilog(L_KLINE, "UR %s %s", get_oper_name(source_p), name);
 485                 }
 486                 /* already have ptr from the loop above.. */
 487                 rb_dlinkDestroy(ptr, &resv_conf_list);
 488         }
 489         free_conf(aconf);
 490
 491         return;
 492 }