src/channels.cpp

   1 /*   +------------------------------------+
   2  *   | Inspire Internet Relay Chat Daemon |
   3  *   +------------------------------------+
   4  *
   5  *  InspIRCd is copyright (C) 2002-2006 ChatSpike-Dev.
   6  *   E-mail:
   7  *        <brain@chatspike.net>
   8  *        <Craig@chatspike.net>
   9  *
  10  * Written by Craig Edwards, Craig McLure, and others.
  11  * This program is free but copyrighted software; see
  12  *      the file COPYING for details.
  13  *
  14  * ---------------------------------------------------
  15  */
  16
  17 using namespace std;
  18
  19 #include <string>
  20 #include <map>
  21 #include <sstream>
  22 #include <vector>
  23 #include <deque>
  24 #include <stdarg.h>
  25 #include "configreader.h"
  26 #include "inspircd.h"
  27 #include "hash_map.h"
  28 #include "users.h"
  29 #include "ctables.h"
  30 #include "globals.h"
  31 #include "modules.h"
  32 #include "dynamic.h"
  33 #include "commands.h"
  34 #include "wildcard.h"
  35 #include "mode.h"
  36 #include "xline.h"
  37 #include "inspstring.h"
  38
  39 #include "typedefs.h"
  40
  41 chanrec::chanrec(InspIRCd* Instance) : ServerInstance(Instance)
  42 {
  43         *name = *topic = *setby = *key = 0;
  44         created = topicset = limit = 0;
  45         internal_userlist.clear();
  46         memset(&modes,0,64);
  47 }
  48
  49 void chanrec::SetMode(char mode,bool mode_on)
  50 {
  51         modes[mode-65] = mode_on;
  52         if (!mode_on)
  53                 this->SetModeParam(mode,"",false);
  54 }
  55
  56
  57 void chanrec::SetModeParam(char mode,const char* parameter,bool mode_on)
  58 {
  59         ServerInstance->Log(DEBUG,"SetModeParam called");
  60
  61         CustomModeList::iterator n = custom_mode_params.find(mode);
  62
  63         if (mode_on)
  64         {
  65                 if (n == custom_mode_params.end())
  66                 {
  67                         custom_mode_params[mode] = strdup(parameter);
  68                         ServerInstance->Log(DEBUG,"Custom mode parameter %c %s added",mode,parameter);
  69                 }
  70                 else
  71                 {
  72                         ServerInstance->Log(DEBUG, "Tried to set custom mode parameter for %c '%s' when it was already '%s'", mode, parameter, n->second);
  73                 }
  74         }
  75         else
  76         {
  77                 if (n != custom_mode_params.end())
  78                 {
  79                         free(n->second);
  80                         custom_mode_params.erase(n);
  81                 }
  82         }
  83 }
  84
  85 bool chanrec::IsModeSet(char mode)
  86 {
  87         return modes[mode-65];
  88 }
  89
  90 std::string chanrec::GetModeParameter(char mode)
  91 {
  92         if (mode == 'k')
  93         {
  94                 return this->key;
  95         }
  96         else if (mode == 'l')
  97         {
  98                 return ConvToStr(this->limit);
  99         }
 100         else
 101         {
 102                 CustomModeList::iterator n = custom_mode_params.find(mode);
 103                 if (n != custom_mode_params.end())
 104                 {
 105                         return n->second;
 106                 }
 107                 return "";
 108         }
 109 }
 110
 111 long chanrec::GetUserCounter()
 112 {
 113         return (this->internal_userlist.size());
 114 }
 115
 116 void chanrec::AddUser(userrec* user)
 117 {
 118         internal_userlist[user] = user;
 119 }
 120
 121 unsigned long chanrec::DelUser(userrec* user)
 122 {
 123         CUListIter a = internal_userlist.find(user);
 124
 125         if (a != internal_userlist.end())
 126         {
 127                 internal_userlist.erase(a);
 128                 /* And tidy any others... */
 129                 DelOppedUser(user);
 130                 DelHalfoppedUser(user);
 131                 DelVoicedUser(user);
 132         }
 133
 134         return internal_userlist.size();
 135 }
 136
 137 bool chanrec::HasUser(userrec* user)
 138 {
 139         return (internal_userlist.find(user) != internal_userlist.end());
 140 }
 141
 142 void chanrec::AddOppedUser(userrec* user)
 143 {
 144         internal_op_userlist[user] = user;
 145 }
 146
 147 void chanrec::DelOppedUser(userrec* user)
 148 {
 149         CUListIter a = internal_op_userlist.find(user);
 150         if (a != internal_op_userlist.end())
 151         {
 152                 internal_op_userlist.erase(a);
 153                 return;
 154         }
 155 }
 156
 157 void chanrec::AddHalfoppedUser(userrec* user)
 158 {
 159         internal_halfop_userlist[user] = user;
 160 }
 161
 162 void chanrec::DelHalfoppedUser(userrec* user)
 163 {
 164         CUListIter a = internal_halfop_userlist.find(user);
 165
 166         if (a != internal_halfop_userlist.end())
 167         {
 168                 internal_halfop_userlist.erase(a);
 169         }
 170 }
 171
 172 void chanrec::AddVoicedUser(userrec* user)
 173 {
 174         internal_voice_userlist[user] = user;
 175 }
 176
 177 void chanrec::DelVoicedUser(userrec* user)
 178 {
 179         CUListIter a = internal_voice_userlist.find(user);
 180
 181         if (a != internal_voice_userlist.end())
 182         {
 183                 internal_voice_userlist.erase(a);
 184         }
 185 }
 186
 187 CUList* chanrec::GetUsers()
 188 {
 189         return &internal_userlist;
 190 }
 191
 192 CUList* chanrec::GetOppedUsers()
 193 {
 194         return &internal_op_userlist;
 195 }
 196
 197 CUList* chanrec::GetHalfoppedUsers()
 198 {
 199         return &internal_halfop_userlist;
 200 }
 201
 202 CUList* chanrec::GetVoicedUsers()
 203 {
 204         return &internal_voice_userlist;
 205 }
 206
 207 /*
 208  * add a channel to a user, creating the record for it if needed and linking
 209  * it to the user record
 210  */
 211 chanrec* chanrec::JoinUser(InspIRCd* Instance, userrec *user, const char* cn, bool override, const char* key)
 212 {
 213         if (!user || !cn)
 214                 return NULL;
 215
 216         int created = 0;
 217         char cname[MAXBUF];
 218         int MOD_RESULT = 0;
 219         strlcpy(cname,cn,CHANMAX);
 220
 221         chanrec* Ptr = Instance->FindChan(cname);
 222
 223         if (!Ptr)
 224         {
 225                 if (user->fd > -1)
 226                 {
 227                         MOD_RESULT = 0;
 228                         FOREACH_RESULT_I(Instance,I_OnUserPreJoin,OnUserPreJoin(user,NULL,cname));
 229                         if (MOD_RESULT == 1)
 230                                 return NULL;
 231                 }
 232
 233                 /* create a new one */
 234                 Ptr = new chanrec(Instance);
 235                 Instance->chanlist[cname] = Ptr;
 236
 237                 strlcpy(Ptr->name, cname,CHANMAX);
 238                 Ptr->modes[CM_TOPICLOCK] = Ptr->modes[CM_NOEXTERNAL] = 1;
 239                 Ptr->created = Instance->Time();
 240                 *Ptr->topic = 0;
 241                 strlcpy(Ptr->setby, user->nick,NICKMAX-1);
 242                 Ptr->topicset = 0;
 243                 Instance->Log(DEBUG,"chanrec::JoinUser(): created: %s",cname);
 244                 /*
 245                  * set created to 2 to indicate user
 246                  * is the first in the channel
 247                  * and should be given ops
 248                  */
 249                 created = 2;
 250         }
 251         else
 252         {
 253                 /* Already on the channel */
 254                 if (Ptr->HasUser(user))
 255                         return NULL;
 256
 257                 /*
 258                  * remote users are allowed us to bypass channel modes
 259                  * and bans (used by servers)
 260                  */
 261                 if (IS_LOCAL(user)) /* was a check on fd > -1 */
 262                 {
 263                         MOD_RESULT = 0;
 264                         FOREACH_RESULT_I(Instance,I_OnUserPreJoin,OnUserPreJoin(user,Ptr,cname));
 265                         if (MOD_RESULT == 1)
 266                         {
 267                                 return NULL;
 268                         }
 269                         else if (MOD_RESULT == 0)
 270                         {
 271                                 if (*Ptr->key)
 272                                 {
 273                                         MOD_RESULT = 0;
 274                                         FOREACH_RESULT_I(Instance,I_OnCheckKey,OnCheckKey(user, Ptr, key ? key : ""));
 275                                         if (!MOD_RESULT)
 276                                         {
 277                                                 if (!key)
 278                                                 {
 279                                                         Instance->Log(DEBUG,"chanrec::JoinUser(): no key given in JOIN");
 280                                                         user->WriteServ("475 %s %s :Cannot join channel (Requires key)",user->nick, Ptr->name);
 281                                                         return NULL;
 282                                                 }
 283                                                 else
 284                                                 {
 285                                                         if (strcmp(key,Ptr->key))
 286                                                         {
 287                                                                 Instance->Log(DEBUG,"chanrec::JoinUser(): bad key given in JOIN");
 288                                                                 user->WriteServ("475 %s %s :Cannot join channel (Incorrect key)",user->nick, Ptr->name);
 289                                                                 return NULL;
 290                                                         }
 291                                                 }
 292                                         }
 293                                 }
 294                                 if (Ptr->modes[CM_INVITEONLY])
 295                                 {
 296                                         MOD_RESULT = 0;
 297                                         irc::string xname(Ptr->name);
 298                                         FOREACH_RESULT_I(Instance,I_OnCheckInvite,OnCheckInvite(user, Ptr));
 299                                         if (!MOD_RESULT)
 300                                         {
 301                                                 if (user->IsInvited(xname))
 302                                                 {
 303                                                         /* user was invited to channel */
 304                                                         /* there may be an optional channel NOTICE here */
 305                                                 }
 306                                                 else
 307                                                 {
 308                                                         user->WriteServ("473 %s %s :Cannot join channel (Invite only)",user->nick, Ptr->name);
 309                                                         return NULL;
 310                                                 }
 311                                         }
 312                                         user->RemoveInvite(xname);
 313                                 }
 314                                 if (Ptr->limit)
 315                                 {
 316                                         MOD_RESULT = 0;
 317                                         FOREACH_RESULT_I(Instance,I_OnCheckLimit,OnCheckLimit(user, Ptr));
 318                                         if (!MOD_RESULT)
 319                                         {
 320                                                 if (Ptr->GetUserCounter() >= Ptr->limit)
 321                                                 {
 322                                                         user->WriteServ("471 %s %s :Cannot join channel (Channel is full)",user->nick, Ptr->name);
 323                                                         return NULL;
 324                                                 }
 325                                         }
 326                                 }
 327                                 if (Ptr->bans.size())
 328                                 {
 329                                         MOD_RESULT = 0;
 330                                         FOREACH_RESULT_I(Instance,I_OnCheckBan,OnCheckBan(user, Ptr));
 331                                         char mask[MAXBUF];
 332                                         sprintf(mask,"%s!%s@%s",user->nick, user->ident, user->GetIPString());
 333                                         if (!MOD_RESULT)
 334                                         {
 335                                                 for (BanList::iterator i = Ptr->bans.begin(); i != Ptr->bans.end(); i++)
 336                                                 {
 337                                                         /* This allows CIDR ban matching
 338                                                          *
 339                                                          *        Full masked host                      Full unmasked host                   IP with/without CIDR
 340                                                          */
 341                                                         if ((match(user->GetFullHost(),i->data)) || (match(user->GetFullRealHost(),i->data)) || (match(mask, i->data, true)))
 342                                                         {
 343                                                                 user->WriteServ("474 %s %s :Cannot join channel (You're banned)",user->nick, Ptr->name);
 344                                                                 return NULL;
 345                                                         }
 346                                                 }
 347                                         }
 348                                 }
 349                         }
 350                 }
 351                 else
 352                 {
 353                         Instance->Log(DEBUG,"chanrec::JoinUser(): Overridden checks");
 354                 }
 355                 created = 1;
 356         }
 357
 358         for (UserChanList::const_iterator index = user->chans.begin(); index != user->chans.end(); index++)
 359         {
 360                 if ((*index)->channel == NULL)
 361                 {
 362                         return chanrec::ForceChan(Instance, Ptr, *index, user, created);
 363                 }
 364         }
 365
 366         /*
 367          * XXX: If the user is an oper here, we can just extend their user->chans vector by one
 368          * and put the channel in here. Same for remote users which are not bound by
 369          * the channel limits. Otherwise, nope, youre boned.
 370          */
 371         if (!IS_LOCAL(user)) /* was a check on fd < 0 */
 372         {
 373                 ucrec* a = new ucrec();
 374                 chanrec* c = chanrec::ForceChan(Instance, Ptr,a,user,created);
 375                 user->chans.push_back(a);
 376                 return c;
 377         }
 378         else if (*user->oper)
 379         {
 380                 /* Oper allows extension up to the OPERMAXCHANS value */
 381                 if (user->chans.size() < OPERMAXCHANS)
 382                 {
 383                         ucrec* a = new ucrec();
 384                         chanrec* c = chanrec::ForceChan(Instance, Ptr,a,user,created);
 385                         user->chans.push_back(a);
 386                         return c;
 387                 }
 388         }
 389
 390         user->WriteServ("405 %s %s :You are on too many channels",user->nick, cname);
 391
 392         if (created == 2)
 393         {
 394                 Instance->Log(DEBUG,"BLAMMO, Whacking channel.");
 395                 /* Things went seriously pear shaped, so take this away. bwahaha. */
 396                 chan_hash::iterator n = Instance->chanlist.find(cname);
 397                 if (n != Instance->chanlist.end())
 398                 {
 399                         Ptr->DelUser(user);
 400                         DELETE(Ptr);
 401                         Instance->chanlist.erase(n);
 402                         for (unsigned int index =0; index < user->chans.size(); index++)
 403                         {
 404                                 if (user->chans[index]->channel == Ptr)
 405                                 {
 406                                         user->chans[index]->channel = NULL;
 407                                         user->chans[index]->uc_modes = 0;
 408                                 }
 409                         }
 410                 }
 411         }
 412         else
 413         {
 414                 for (unsigned int index =0; index < user->chans.size(); index++)
 415                 {
 416                         if (user->chans[index]->channel == Ptr)
 417                         {
 418                                 user->chans[index]->channel = NULL;
 419                                 user->chans[index]->uc_modes = 0;
 420                         }
 421                 }
 422         }
 423         return NULL;
 424 }
 425
 426 chanrec* chanrec::ForceChan(InspIRCd* Instance, chanrec* Ptr,ucrec *a,userrec* user, int created)
 427 {
 428         if (created == 2)
 429         {
 430                 /* first user in is given ops */
 431                 a->uc_modes = UCMODE_OP;
 432                 Ptr->AddOppedUser(user);
 433         }
 434         else
 435         {
 436                 a->uc_modes = 0;
 437         }
 438
 439         a->channel = Ptr;
 440         Ptr->AddUser(user);
 441         Ptr->WriteChannel(user,"JOIN :%s",Ptr->name);
 442
 443         /* Major improvement by Brain - we dont need to be calculating all this pointlessly for remote users */
 444         if (IS_LOCAL(user))
 445         {
 446                 if (Ptr->topicset)
 447                 {
 448                         user->WriteServ("332 %s %s :%s", user->nick, Ptr->name, Ptr->topic);
 449                         user->WriteServ("333 %s %s %s %lu", user->nick, Ptr->name, Ptr->setby, (unsigned long)Ptr->topicset);
 450                 }
 451                 Ptr->UserList(user);
 452                 user->WriteServ("366 %s %s :End of /NAMES list.", user->nick, Ptr->name);
 453         }
 454         FOREACH_MOD_I(Instance,I_OnUserJoin,OnUserJoin(user,Ptr));
 455         return Ptr;
 456 }
 457
 458 /* chanrec::PartUser
 459  * remove a channel from a users record, and remove the record from the hash
 460  * if the channel has become empty
 461  */
 462 long chanrec::PartUser(userrec *user, const char* reason)
 463 {
 464         if (!user)
 465                 return this->GetUserCounter();
 466
 467         for (unsigned int i =0; i < user->chans.size(); i++)
 468         {
 469                 /* zap it from the channel list of the user */
 470                 if (user->chans[i]->channel == this)
 471                 {
 472                         if (reason)
 473                         {
 474                                 FOREACH_MOD(I_OnUserPart,OnUserPart(user, this, reason));
 475                                 this->WriteChannel(user, "PART %s :%s", this->name, reason);
 476                         }
 477                         else
 478                         {
 479                                 FOREACH_MOD(I_OnUserPart,OnUserPart(user, this, ""));
 480                                 this->WriteChannel(user, "PART :%s", this->name);
 481                         }
 482                         user->chans[i]->uc_modes = 0;
 483                         user->chans[i]->channel = NULL;
 484                         break;
 485                 }
 486         }
 487
 488         if (!this->DelUser(user)) /* if there are no users left on the channel... */
 489         {
 490                 chan_hash::iterator iter = ServerInstance->chanlist.find(this->name);
 491                 /* kill the record */
 492                 if (iter != ServerInstance->chanlist.end())
 493                 {
 494                         ServerInstance->Log(DEBUG,"del_channel: destroyed: %s", this->name);
 495                         FOREACH_MOD(I_OnChannelDelete,OnChannelDelete(this));
 496                         ServerInstance->chanlist.erase(iter);
 497                 }
 498                 return 0;
 499         }
 500
 501         return this->GetUserCounter();
 502 }
 503
 504 long chanrec::ServerKickUser(userrec* user, const char* reason, bool triggerevents)
 505 {
 506         if (!user || !reason)
 507                 return this->GetUserCounter();
 508
 509         if (IS_LOCAL(user))
 510         {
 511                 if (!this->HasUser(user))
 512                 {
 513                         /* Not on channel */
 514                         return this->GetUserCounter();
 515                 }
 516         }
 517
 518         if (triggerevents)
 519         {
 520                 FOREACH_MOD(I_OnUserKick,OnUserKick(NULL,user,this,reason));
 521         }
 522
 523         for (unsigned int i =0; i < user->chans.size(); i++)
 524         {
 525                 if (user->chans[i]->channel == this)
 526                 {
 527                         this->WriteChannelWithServ(ServerInstance->Config->ServerName, "KICK %s %s :%s", this->name, user->nick, reason);
 528                         user->chans[i]->uc_modes = 0;
 529                         user->chans[i]->channel = NULL;
 530                         break;
 531                 }
 532         }
 533
 534         if (!this->DelUser(user))
 535         {
 536                 chan_hash::iterator iter = ServerInstance->chanlist.find(this->name);
 537                 /* kill the record */
 538                 if (iter != ServerInstance->chanlist.end())
 539                 {
 540                         FOREACH_MOD(I_OnChannelDelete,OnChannelDelete(this));
 541                         ServerInstance->chanlist.erase(iter);
 542                 }
 543                 return 0;
 544         }
 545
 546         return this->GetUserCounter();
 547 }
 548
 549 long chanrec::KickUser(userrec *src, userrec *user, const char* reason)
 550 {
 551         if (!src || !user || !reason)
 552                 return this->GetUserCounter();
 553
 554         if (IS_LOCAL(src))
 555         {
 556                 if (!this->HasUser(user))
 557                 {
 558                         src->WriteServ("441 %s %s %s :They are not on that channel",src->nick, user->nick, this->name);
 559                         return this->GetUserCounter();
 560                 }
 561                 if ((ServerInstance->ULine(user->server)) && (!ServerInstance->ULine(src->server)))
 562                 {
 563                         src->WriteServ("482 %s %s :Only a u-line may kick a u-line from a channel.",src->nick, this->name);
 564                         return this->GetUserCounter();
 565                 }
 566                 int MOD_RESULT = 0;
 567
 568                 if (!ServerInstance->ULine(src->server))
 569                 {
 570                         MOD_RESULT = 0;
 571                         FOREACH_RESULT(I_OnUserPreKick,OnUserPreKick(src,user,this,reason));
 572                         if (MOD_RESULT == 1)
 573                                 return this->GetUserCounter();
 574                 }
 575                 /* Set to -1 by OnUserPreKick if explicit allow was set */
 576                 if (MOD_RESULT != -1)
 577                 {
 578                         FOREACH_RESULT(I_OnAccessCheck,OnAccessCheck(src,user,this,AC_KICK));
 579                         if ((MOD_RESULT == ACR_DENY) && (!ServerInstance->ULine(src->server)))
 580                                 return this->GetUserCounter();
 581
 582                         if ((MOD_RESULT == ACR_DEFAULT) || (!ServerInstance->ULine(src->server)))
 583                         {
 584                                 int them = this->GetStatus(src);
 585                                 int us = this->GetStatus(user);
 586                                 if ((them < STATUS_HOP) || (them < us))
 587                                 {
 588                                         if (them == STATUS_HOP)
 589                                         {
 590                                                 src->WriteServ("482 %s %s :You must be a channel operator",src->nick, this->name);
 591                                         }
 592                                         else
 593                                         {
 594                                                 src->WriteServ("482 %s %s :You must be at least a half-operator",src->nick, this->name);
 595                                         }
 596                                         return this->GetUserCounter();
 597                                 }
 598                         }
 599                 }
 600         }
 601
 602         FOREACH_MOD(I_OnUserKick,OnUserKick(src,user,this,reason));
 603
 604         for (UserChanList::const_iterator i = user->chans.begin(); i != user->chans.end(); i++)
 605         {
 606                 /* zap it from the channel list of the user */
 607                 if ((*i)->channel == this)
 608                 {
 609                         this->WriteChannel(src, "KICK %s %s :%s", this->name, user->nick, reason);
 610                         (*i)->uc_modes = 0;
 611                         (*i)->channel = NULL;
 612                         break;
 613                 }
 614         }
 615
 616         if (!this->DelUser(user))
 617         /* if there are no users left on the channel */
 618         {
 619                 chan_hash::iterator iter = ServerInstance->chanlist.find(this->name);
 620
 621                 /* kill the record */
 622                 if (iter != ServerInstance->chanlist.end())
 623                 {
 624                         FOREACH_MOD(I_OnChannelDelete,OnChannelDelete(this));
 625                         ServerInstance->chanlist.erase(iter);
 626                 }
 627                 return 0;
 628         }
 629
 630         return this->GetUserCounter();
 631 }
 632
 633 void chanrec::WriteChannel(userrec* user, char* text, ...)
 634 {
 635         char textbuffer[MAXBUF];
 636         va_list argsPtr;
 637
 638         if (!user || !text)
 639                 return;
 640
 641         va_start(argsPtr, text);
 642         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 643         va_end(argsPtr);
 644
 645         this->WriteChannel(user, std::string(textbuffer));
 646 }
 647
 648 void chanrec::WriteChannel(userrec* user, const std::string &text)
 649 {
 650         CUList *ulist = this->GetUsers();
 651
 652         if (!user)
 653                 return;
 654
 655         for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
 656         {
 657                 if (i->second->fd != FD_MAGIC_NUMBER)
 658                         user->WriteTo(i->second,text);
 659         }
 660 }
 661
 662 void chanrec::WriteChannelWithServ(const char* ServName, const char* text, ...)
 663 {
 664         char textbuffer[MAXBUF];
 665         va_list argsPtr;
 666
 667         if (!text)
 668                 return;
 669
 670         va_start(argsPtr, text);
 671         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 672         va_end(argsPtr);
 673
 674         this->WriteChannelWithServ(ServName, std::string(textbuffer));
 675 }
 676
 677 void chanrec::WriteChannelWithServ(const char* ServName, const std::string &text)
 678 {
 679         CUList *ulist = this->GetUsers();
 680
 681         for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
 682         {
 683                 if (IS_LOCAL(i->second))
 684                         i->second->WriteServ(text);
 685         }
 686 }
 687
 688 /* write formatted text from a source user to all users on a channel except
 689  * for the sender (for privmsg etc) */
 690 void chanrec::WriteAllExceptSender(userrec* user, char status, char* text, ...)
 691 {
 692         char textbuffer[MAXBUF];
 693         va_list argsPtr;
 694
 695         if (!user || !text)
 696                 return;
 697
 698         va_start(argsPtr, text);
 699         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 700         va_end(argsPtr);
 701
 702         this->WriteAllExceptSender(user, status, std::string(textbuffer));
 703 }
 704
 705 void chanrec::WriteAllExceptSender(userrec* user, char status, const std::string& text)
 706 {
 707         CUList *ulist;
 708
 709         if (!user)
 710                 return;
 711
 712         switch (status)
 713         {
 714                 case '@':
 715                         ulist = this->GetOppedUsers();
 716                         break;
 717                 case '%':
 718                         ulist = this->GetHalfoppedUsers();
 719                         break;
 720                 case '+':
 721                         ulist = this->GetVoicedUsers();
 722                         break;
 723                 default:
 724                         ulist = this->GetUsers();
 725                         break;
 726         }
 727
 728         for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
 729         {
 730                 if ((IS_LOCAL(i->second)) && (user != i->second))
 731                         i->second->WriteFrom(user,text);
 732         }
 733 }
 734
 735 /*
 736  * return a count of the users on a specific channel accounting for
 737  * invisible users who won't increase the count. e.g. for /LIST
 738  */
 739 int chanrec::CountInvisible()
 740 {
 741         int count = 0;
 742         CUList *ulist= this->GetUsers();
 743         for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
 744         {
 745                 if (!(i->second->modes[UM_INVISIBLE]))
 746                         count++;
 747         }
 748
 749         return count;
 750 }
 751
 752 char* chanrec::ChanModes(bool showkey)
 753 {
 754         static char scratch[MAXBUF];
 755         static char sparam[MAXBUF];
 756         char* offset = scratch;
 757         std::string extparam = "";
 758
 759         *scratch = '\0';
 760         *sparam = '\0';
 761
 762         /* This was still iterating up to 190, chanrec::custom_modes is only 64 elements -- Om */
 763         for(int n = 0; n < 64; n++)
 764         {
 765                 if(this->modes[n])
 766                 {
 767                         *offset++ = n + 65;
 768                         extparam = "";
 769                         switch (n)
 770                         {
 771                                 case CM_KEY:
 772                                         extparam = (showkey ? this->key : "<key>");
 773                                 break;
 774                                 case CM_LIMIT:
 775                                         extparam = ConvToStr(this->limit);
 776                                 break;
 777                                 case CM_NOEXTERNAL:
 778                                 case CM_TOPICLOCK:
 779                                 case CM_INVITEONLY:
 780                                 case CM_MODERATED:
 781                                 case CM_SECRET:
 782                                 case CM_PRIVATE:
 783                                         /* We know these have no parameters */
 784                                 break;
 785                                 default:
 786                                         extparam = this->GetModeParameter(n + 65);
 787                                 break;
 788                         }
 789                         if (extparam != "")
 790                         {
 791                                 charlcat(sparam,' ',MAXBUF);
 792                                 strlcat(sparam,extparam.c_str(),MAXBUF);
 793                         }
 794                 }
 795         }
 796
 797         /* Null terminate scratch */
 798         *offset = '\0';
 799         strlcat(scratch,sparam,MAXBUF);
 800         return scratch;
 801 }
 802
 803 /* compile a userlist of a channel into a string, each nick seperated by
 804  * spaces and op, voice etc status shown as @ and +, and send it to 'user'
 805  */
 806 void chanrec::UserList(userrec *user)
 807 {
 808         char list[MAXBUF];
 809         size_t dlen, curlen;
 810
 811         dlen = curlen = snprintf(list,MAXBUF,"353 %s = %s :", user->nick, this->name);
 812
 813         int numusers = 0;
 814         char* ptr = list + dlen;
 815
 816         CUList *ulist= this->GetUsers();
 817
 818         /* Improvement by Brain - this doesnt change in value, so why was it inside
 819          * the loop?
 820          */
 821         bool has_user = this->HasUser(user);
 822
 823         for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
 824         {
 825                 if ((!has_user) && (i->second->modes[UM_INVISIBLE]))
 826                 {
 827                         /*
 828                          * user is +i, and source not on the channel, does not show
 829                          * nick in NAMES list
 830                          */
 831                         continue;
 832                 }
 833
 834                 size_t ptrlen = snprintf(ptr, MAXBUF, "%s%s ", this->GetStatusChar(i->second), i->second->nick);
 835
 836                 curlen += ptrlen;
 837                 ptr += ptrlen;
 838
 839                 numusers++;
 840
 841                 if (curlen > (480-NICKMAX))
 842                 {
 843                         /* list overflowed into multiple numerics */
 844                         user->WriteServ(list);
 845
 846                         /* reset our lengths */
 847                         dlen = curlen = snprintf(list,MAXBUF,"353 %s = %s :", user->nick, this->name);
 848                         ptr = list + dlen;
 849
 850                         ptrlen = 0;
 851                         numusers = 0;
 852                 }
 853         }
 854
 855         /* if whats left in the list isnt empty, send it */
 856         if (numusers)
 857         {
 858                 user->WriteServ(list);
 859         }
 860 }
 861
 862 long chanrec::GetMaxBans()
 863 {
 864         std::string x;
 865         for (std::map<std::string,int>::iterator n = ServerInstance->Config->maxbans.begin(); n != ServerInstance->Config->maxbans.end(); n++)
 866         {
 867                 x = n->first;
 868                 if (match(this->name,x.c_str()))
 869                 {
 870                         return n->second;
 871                 }
 872         }
 873         return 64;
 874 }
 875
 876
 877 /* returns the status character for a given user on a channel, e.g. @ for op,
 878  * % for halfop etc. If the user has several modes set, the highest mode
 879  * the user has must be returned. */
 880
 881 const char* chanrec::GetStatusChar(userrec *user)
 882 {
 883         for (std::vector<ucrec*>::const_iterator i = user->chans.begin(); i != user->chans.end(); i++)
 884         {
 885                 if ((*i)->channel == this)
 886                 {
 887                         if (((*i)->uc_modes & UCMODE_OP) > 0)
 888                         {
 889                                 return "@";
 890                         }
 891                         if (((*i)->uc_modes & UCMODE_HOP) > 0)
 892                         {
 893                                 return "%";
 894                         }
 895                         if (((*i)->uc_modes & UCMODE_VOICE) > 0)
 896                         {
 897                                 return "+";
 898                         }
 899                         return "";
 900                 }
 901         }
 902         return "";
 903 }
 904
 905
 906 int chanrec::GetStatusFlags(userrec *user)
 907 {
 908         for (std::vector<ucrec*>::const_iterator i = user->chans.begin(); i != user->chans.end(); i++)
 909         {
 910                 if ((*i)->channel == this)
 911                 {
 912                         return (*i)->uc_modes;
 913                 }
 914         }
 915         return 0;
 916 }
 917
 918
 919
 920 int chanrec::GetStatus(userrec *user)
 921 {
 922         if (ServerInstance->ULine(user->server))
 923                 return STATUS_OP;
 924
 925         for (std::vector<ucrec*>::const_iterator i = user->chans.begin(); i != user->chans.end(); i++)
 926         {
 927                 if ((*i)->channel == this)
 928                 {
 929                         if (((*i)->uc_modes & UCMODE_OP) > 0)
 930                         {
 931                                 return STATUS_OP;
 932                         }
 933                         if (((*i)->uc_modes & UCMODE_HOP) > 0)
 934                         {
 935                                 return STATUS_HOP;
 936                         }
 937                         if (((*i)->uc_modes & UCMODE_VOICE) > 0)
 938                         {
 939                                 return STATUS_VOICE;
 940                         }
 941                         return STATUS_NORMAL;
 942                 }
 943         }
 944         return STATUS_NORMAL;
 945 }
 946
 947