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 <stdarg.h>
  20 #include "configreader.h"
  21 #include "inspircd.h"
  22 #include "users.h"
  23 #include "modules.h"
  24 #include "wildcard.h"
  25 #include "mode.h"
  26
  27 chanrec::chanrec(InspIRCd* Instance) : ServerInstance(Instance)
  28 {
  29         *name = *topic = *setby = *key = 0;
  30         created = topicset = limit = 0;
  31         internal_userlist.clear();
  32         memset(&modes,0,64);
  33 }
  34
  35 void chanrec::SetMode(char mode,bool mode_on)
  36 {
  37         modes[mode-65] = mode_on;
  38         if (!mode_on)
  39                 this->SetModeParam(mode,"",false);
  40 }
  41
  42
  43 void chanrec::SetModeParam(char mode,const char* parameter,bool mode_on)
  44 {
  45         ServerInstance->Log(DEBUG,"SetModeParam called");
  46
  47         CustomModeList::iterator n = custom_mode_params.find(mode);
  48
  49         if (mode_on)
  50         {
  51                 if (n == custom_mode_params.end())
  52                 {
  53                         custom_mode_params[mode] = strdup(parameter);
  54                         ServerInstance->Log(DEBUG,"Custom mode parameter %c %s added",mode,parameter);
  55                 }
  56                 else
  57                 {
  58                         ServerInstance->Log(DEBUG, "Tried to set custom mode parameter for %c '%s' when it was already '%s'", mode, parameter, n->second);
  59                 }
  60         }
  61         else
  62         {
  63                 if (n != custom_mode_params.end())
  64                 {
  65                         free(n->second);
  66                         custom_mode_params.erase(n);
  67                 }
  68         }
  69 }
  70
  71 bool chanrec::IsModeSet(char mode)
  72 {
  73         return modes[mode-65];
  74 }
  75
  76 std::string chanrec::GetModeParameter(char mode)
  77 {
  78         if (mode == 'k')
  79         {
  80                 return this->key;
  81         }
  82         else if (mode == 'l')
  83         {
  84                 return ConvToStr(this->limit);
  85         }
  86         else
  87         {
  88                 CustomModeList::iterator n = custom_mode_params.find(mode);
  89                 if (n != custom_mode_params.end())
  90                 {
  91                         return n->second;
  92                 }
  93                 return "";
  94         }
  95 }
  96
  97 long chanrec::GetUserCounter()
  98 {
  99         return (this->internal_userlist.size());
 100 }
 101
 102 void chanrec::AddUser(userrec* user)
 103 {
 104         internal_userlist[user] = user;
 105 }
 106
 107 unsigned long chanrec::DelUser(userrec* user)
 108 {
 109         CUListIter a = internal_userlist.find(user);
 110
 111         if (a != internal_userlist.end())
 112         {
 113                 internal_userlist.erase(a);
 114                 /* And tidy any others... */
 115                 DelOppedUser(user);
 116                 DelHalfoppedUser(user);
 117                 DelVoicedUser(user);
 118         }
 119
 120         return internal_userlist.size();
 121 }
 122
 123 bool chanrec::HasUser(userrec* user)
 124 {
 125         return (internal_userlist.find(user) != internal_userlist.end());
 126 }
 127
 128 void chanrec::AddOppedUser(userrec* user)
 129 {
 130         internal_op_userlist[user] = user;
 131 }
 132
 133 void chanrec::DelOppedUser(userrec* user)
 134 {
 135         CUListIter a = internal_op_userlist.find(user);
 136         if (a != internal_op_userlist.end())
 137         {
 138                 internal_op_userlist.erase(a);
 139                 return;
 140         }
 141 }
 142
 143 void chanrec::AddHalfoppedUser(userrec* user)
 144 {
 145         internal_halfop_userlist[user] = user;
 146 }
 147
 148 void chanrec::DelHalfoppedUser(userrec* user)
 149 {
 150         CUListIter a = internal_halfop_userlist.find(user);
 151
 152         if (a != internal_halfop_userlist.end())
 153         {
 154                 internal_halfop_userlist.erase(a);
 155         }
 156 }
 157
 158 void chanrec::AddVoicedUser(userrec* user)
 159 {
 160         internal_voice_userlist[user] = user;
 161 }
 162
 163 void chanrec::DelVoicedUser(userrec* user)
 164 {
 165         CUListIter a = internal_voice_userlist.find(user);
 166
 167         if (a != internal_voice_userlist.end())
 168         {
 169                 internal_voice_userlist.erase(a);
 170         }
 171 }
 172
 173 CUList* chanrec::GetUsers()
 174 {
 175         return &internal_userlist;
 176 }
 177
 178 CUList* chanrec::GetOppedUsers()
 179 {
 180         return &internal_op_userlist;
 181 }
 182
 183 CUList* chanrec::GetHalfoppedUsers()
 184 {
 185         return &internal_halfop_userlist;
 186 }
 187
 188 CUList* chanrec::GetVoicedUsers()
 189 {
 190         return &internal_voice_userlist;
 191 }
 192
 193 /*
 194  * add a channel to a user, creating the record for it if needed and linking
 195  * it to the user record
 196  */
 197 chanrec* chanrec::JoinUser(InspIRCd* Instance, userrec *user, const char* cn, bool override, const char* key)
 198 {
 199         if (!user || !cn)
 200                 return NULL;
 201
 202         bool new_channel = false;
 203         char cname[MAXBUF];
 204         int MOD_RESULT = 0;
 205         strlcpy(cname,cn,CHANMAX);
 206
 207         std::string privs;
 208
 209         chanrec* Ptr = Instance->FindChan(cname);
 210
 211         if (!Ptr)
 212         {
 213                 privs = "@";
 214
 215                 if (IS_LOCAL(user))
 216                 {
 217                         MOD_RESULT = 0;
 218                         FOREACH_RESULT_I(Instance,I_OnUserPreJoin,OnUserPreJoin(user,NULL,cname,privs));
 219                         if (MOD_RESULT == 1)
 220                                 return NULL;
 221                 }
 222
 223                 /* create a new one */
 224                 Ptr = new chanrec(Instance);
 225                 Instance->chanlist[cname] = Ptr;
 226
 227                 strlcpy(Ptr->name, cname,CHANMAX);
 228                 Ptr->modes[CM_TOPICLOCK] = Ptr->modes[CM_NOEXTERNAL] = 1;
 229                 Ptr->created = Instance->Time();
 230                 *Ptr->topic = 0;
 231                 *Ptr->setby = 0;
 232                 Ptr->topicset = 0;
 233                 Instance->Log(DEBUG,"chanrec::JoinUser(): created: %s",cname);
 234                 new_channel = true;
 235         }
 236         else
 237         {
 238                 /* Already on the channel */
 239                 if (Ptr->HasUser(user))
 240                         return NULL;
 241
 242                 /*
 243                  * remote users are allowed us to bypass channel modes
 244                  * and bans (used by servers)
 245                  */
 246                 if (IS_LOCAL(user)) /* was a check on fd > -1 */
 247                 {
 248                         MOD_RESULT = 0;
 249                         FOREACH_RESULT_I(Instance,I_OnUserPreJoin,OnUserPreJoin(user,Ptr,cname,privs));
 250                         if (MOD_RESULT == 1)
 251                         {
 252                                 return NULL;
 253                         }
 254                         else if (MOD_RESULT == 0)
 255                         {
 256                                 if (*Ptr->key)
 257                                 {
 258                                         MOD_RESULT = 0;
 259                                         FOREACH_RESULT_I(Instance,I_OnCheckKey,OnCheckKey(user, Ptr, key ? key : ""));
 260                                         if (!MOD_RESULT)
 261                                         {
 262                                                 if ((!key) || strcmp(key,Ptr->key))
 263                                                 {
 264                                                         user->WriteServ("475 %s %s :Cannot join channel (Incorrect channel key)",user->nick, Ptr->name);
 265                                                         return NULL;
 266                                                 }
 267                                         }
 268                                 }
 269                                 if (Ptr->modes[CM_INVITEONLY])
 270                                 {
 271                                         MOD_RESULT = 0;
 272                                         irc::string xname(Ptr->name);
 273                                         FOREACH_RESULT_I(Instance,I_OnCheckInvite,OnCheckInvite(user, Ptr));
 274                                         if (!MOD_RESULT)
 275                                         {
 276                                                 if (user->IsInvited(xname))
 277                                                 {
 278                                                         /* user was invited to channel */
 279                                                         /* there may be an optional channel NOTICE here */
 280                                                 }
 281                                                 else
 282                                                 {
 283                                                         user->WriteServ("473 %s %s :Cannot join channel (Invite only)",user->nick, Ptr->name);
 284                                                         return NULL;
 285                                                 }
 286                                         }
 287                                         user->RemoveInvite(xname);
 288                                 }
 289                                 if (Ptr->limit)
 290                                 {
 291                                         MOD_RESULT = 0;
 292                                         FOREACH_RESULT_I(Instance,I_OnCheckLimit,OnCheckLimit(user, Ptr));
 293                                         if (!MOD_RESULT)
 294                                         {
 295                                                 if (Ptr->GetUserCounter() >= Ptr->limit)
 296                                                 {
 297                                                         user->WriteServ("471 %s %s :Cannot join channel (Channel is full)",user->nick, Ptr->name);
 298                                                         return NULL;
 299                                                 }
 300                                         }
 301                                 }
 302                                 if (Ptr->bans.size())
 303                                 {
 304                                         char mask[MAXBUF];
 305                                         snprintf(mask, MAXBUF, "%s!%s@%s",user->nick, user->ident, user->GetIPString());
 306                                         if (Ptr->IsBanned(user))
 307                                         {
 308                                                 user->WriteServ("474 %s %s :Cannot join channel (You're banned)",user->nick, Ptr->name);
 309                                                 return NULL;
 310                                         }
 311                                 }
 312                         }
 313                 }
 314                 else
 315                 {
 316                         Instance->Log(DEBUG,"chanrec::JoinUser(): Overridden checks");
 317                 }
 318         }
 319
 320         for (UserChanList::const_iterator index = user->chans.begin(); index != user->chans.end(); index++)
 321         {
 322                 if ((*index)->channel == NULL)
 323                 {
 324                         return chanrec::ForceChan(Instance, Ptr, *index, user, privs);
 325                 }
 326         }
 327
 328         /*
 329          * XXX: If the user is an oper here, we can just extend their user->chans vector by one
 330          * and put the channel in here. Same for remote users which are not bound by
 331          * the channel limits. Otherwise, nope, youre boned.
 332          */
 333         if (!IS_LOCAL(user)) /* was a check on fd < 0 */
 334         {
 335                 ucrec* a = new ucrec();
 336                 chanrec* c = chanrec::ForceChan(Instance, Ptr, a, user, privs);
 337                 user->chans.push_back(a);
 338                 return c;
 339         }
 340         else if (*user->oper)
 341         {
 342                 /* Oper allows extension up to the OPERMAXCHANS value */
 343                 if (user->chans.size() < OPERMAXCHANS)
 344                 {
 345                         ucrec* a = new ucrec();
 346                         chanrec* c = chanrec::ForceChan(Instance, Ptr, a, user, privs);
 347                         user->chans.push_back(a);
 348                         return c;
 349                 }
 350         }
 351
 352         user->WriteServ("405 %s %s :You are on too many channels",user->nick, cname);
 353
 354         if (new_channel)
 355         {
 356                 Instance->Log(DEBUG,"BLAMMO, Whacking channel.");
 357                 /* Things went seriously pear shaped, so take this away. bwahaha. */
 358                 chan_hash::iterator n = Instance->chanlist.find(cname);
 359                 if (n != Instance->chanlist.end())
 360                 {
 361                         Ptr->DelUser(user);
 362                         DELETE(Ptr);
 363                         Instance->chanlist.erase(n);
 364                         for (unsigned int index =0; index < user->chans.size(); index++)
 365                         {
 366                                 if (user->chans[index]->channel == Ptr)
 367                                 {
 368                                         user->chans[index]->channel = NULL;
 369                                         user->chans[index]->uc_modes = 0;
 370                                 }
 371                         }
 372                 }
 373         }
 374         else
 375         {
 376                 for (unsigned int index =0; index < user->chans.size(); index++)
 377                 {
 378                         if (user->chans[index]->channel == Ptr)
 379                         {
 380                                 user->chans[index]->channel = NULL;
 381                                 user->chans[index]->uc_modes = 0;
 382                         }
 383                 }
 384         }
 385         return NULL;
 386 }
 387
 388 chanrec* chanrec::ForceChan(InspIRCd* Instance, chanrec* Ptr,ucrec *a,userrec* user, const std::string &privs)
 389 {
 390         a->uc_modes = 0;
 391
 392         for (std::string::const_iterator x = privs.begin(); x != privs.end(); x++)
 393         {
 394                 const char status = *x;
 395                 switch (status)
 396                 {
 397                         case '@':
 398                                 a->uc_modes |= UCMODE_OP;
 399                         break;
 400                         case '%':
 401                                 a->uc_modes |= UCMODE_HOP;
 402                         break;
 403                         case '+':
 404                                 a->uc_modes |= UCMODE_VOICE;
 405                         break;
 406                 }
 407                 ModeHandler* mh = Instance->Modes->FindPrefix(status);
 408                 if (mh)
 409                 {
 410                         Ptr->SetPrefix(user, status, mh->GetPrefixRank(), true);
 411                 }
 412         }
 413
 414         a->channel = Ptr;
 415         Ptr->AddUser(user);
 416         user->ModChannelCount(1);
 417         Ptr->WriteChannel(user,"JOIN :%s",Ptr->name);
 418
 419         /* Theyre not the first ones in here, make sure everyone else sees the modes we gave the user */
 420         std::string ms = Instance->Modes->ModeString(user, Ptr);
 421         if ((Ptr->GetUserCounter() > 1) && (ms.length()))
 422                 Ptr->WriteAllExceptSender(user, true, 0, "MODE %s +%s", Ptr->name, ms.c_str());
 423
 424         /* Major improvement by Brain - we dont need to be calculating all this pointlessly for remote users */
 425         if (IS_LOCAL(user))
 426         {
 427                 if (Ptr->topicset)
 428                 {
 429                         user->WriteServ("332 %s %s :%s", user->nick, Ptr->name, Ptr->topic);
 430                         user->WriteServ("333 %s %s %s %lu", user->nick, Ptr->name, Ptr->setby, (unsigned long)Ptr->topicset);
 431                 }
 432                 Ptr->UserList(user);
 433         }
 434         FOREACH_MOD_I(Instance,I_OnUserJoin,OnUserJoin(user,Ptr));
 435         return Ptr;
 436 }
 437
 438 bool chanrec::IsBanned(userrec* user)
 439 {
 440         char mask[MAXBUF];
 441         int MOD_RESULT = 0;
 442         FOREACH_RESULT_I(Instance,I_OnCheckBan,OnCheckBan(user, Ptr));
 443         if (!MOD_RESULT)
 444         {
 445                 snprintf(mask, MAXBUF, "%s!%s@%s", user->nick, user->ident, user->GetIPString());
 446                 for (BanList::iterator i = this->bans.begin(); i != this->bans.end(); i++)
 447                 {
 448                         /* This allows CIDR ban matching
 449                          *
 450                          *        Full masked host                      Full unmasked host                   IP with/without CIDR
 451                          */
 452                         if ((match(user->GetFullHost(),i->data)) || (match(user->GetFullRealHost(),i->data)) || (match(mask, i->data, true)))
 453                         {
 454                                 return true;
 455                         }
 456                 }
 457         }
 458         return false;
 459 }
 460
 461 /* chanrec::PartUser
 462  * remove a channel from a users record, and remove the record from the hash
 463  * if the channel has become empty
 464  */
 465 long chanrec::PartUser(userrec *user, const char* reason)
 466 {
 467         if (!user)
 468                 return this->GetUserCounter();
 469
 470         for (unsigned int i =0; i < user->chans.size(); i++)
 471         {
 472                 /* zap it from the channel list of the user */
 473                 if (user->chans[i]->channel == this)
 474                 {
 475                         if (reason)
 476                         {
 477                                 FOREACH_MOD(I_OnUserPart,OnUserPart(user, this, reason));
 478                                 this->WriteChannel(user, "PART %s :%s", this->name, reason);
 479                         }
 480                         else
 481                         {
 482                                 FOREACH_MOD(I_OnUserPart,OnUserPart(user, this, ""));
 483                                 this->WriteChannel(user, "PART :%s", this->name);
 484                         }
 485                         user->chans[i]->uc_modes = 0;
 486                         user->chans[i]->channel = NULL;
 487                         user->ModChannelCount(-1);
 488                         this->RemoveAllPrefixes(user);
 489                         break;
 490                 }
 491         }
 492
 493         if (!this->DelUser(user)) /* if there are no users left on the channel... */
 494         {
 495                 chan_hash::iterator iter = ServerInstance->chanlist.find(this->name);
 496                 /* kill the record */
 497                 if (iter != ServerInstance->chanlist.end())
 498                 {
 499                         ServerInstance->Log(DEBUG,"del_channel: destroyed: %s", this->name);
 500                         FOREACH_MOD(I_OnChannelDelete,OnChannelDelete(this));
 501                         ServerInstance->chanlist.erase(iter);
 502                 }
 503                 return 0;
 504         }
 505
 506         return this->GetUserCounter();
 507 }
 508
 509 long chanrec::ServerKickUser(userrec* user, const char* reason, bool triggerevents)
 510 {
 511         if (!user || !reason)
 512                 return this->GetUserCounter();
 513
 514         if (IS_LOCAL(user))
 515         {
 516                 if (!this->HasUser(user))
 517                 {
 518                         /* Not on channel */
 519                         return this->GetUserCounter();
 520                 }
 521         }
 522
 523         if (triggerevents)
 524         {
 525                 FOREACH_MOD(I_OnUserKick,OnUserKick(NULL,user,this,reason));
 526         }
 527
 528         for (unsigned int i =0; i < user->chans.size(); i++)
 529         {
 530                 if (user->chans[i]->channel == this)
 531                 {
 532                         this->WriteChannelWithServ(ServerInstance->Config->ServerName, "KICK %s %s :%s", this->name, user->nick, reason);
 533                         user->chans[i]->uc_modes = 0;
 534                         user->chans[i]->channel = NULL;
 535                         this->RemoveAllPrefixes(user);
 536                         break;
 537                 }
 538         }
 539
 540         if (!this->DelUser(user))
 541         {
 542                 chan_hash::iterator iter = ServerInstance->chanlist.find(this->name);
 543                 /* kill the record */
 544                 if (iter != ServerInstance->chanlist.end())
 545                 {
 546                         FOREACH_MOD(I_OnChannelDelete,OnChannelDelete(this));
 547                         ServerInstance->chanlist.erase(iter);
 548                 }
 549                 return 0;
 550         }
 551
 552         return this->GetUserCounter();
 553 }
 554
 555 long chanrec::KickUser(userrec *src, userrec *user, const char* reason)
 556 {
 557         if (!src || !user || !reason)
 558                 return this->GetUserCounter();
 559
 560         if (IS_LOCAL(src))
 561         {
 562                 if (!this->HasUser(user))
 563                 {
 564                         src->WriteServ("441 %s %s %s :They are not on that channel",src->nick, user->nick, this->name);
 565                         return this->GetUserCounter();
 566                 }
 567                 if ((ServerInstance->ULine(user->server)) && (!ServerInstance->ULine(src->server)))
 568                 {
 569                         src->WriteServ("482 %s %s :Only a u-line may kick a u-line from a channel.",src->nick, this->name);
 570                         return this->GetUserCounter();
 571                 }
 572                 int MOD_RESULT = 0;
 573
 574                 if (!ServerInstance->ULine(src->server))
 575                 {
 576                         MOD_RESULT = 0;
 577                         FOREACH_RESULT(I_OnUserPreKick,OnUserPreKick(src,user,this,reason));
 578                         if (MOD_RESULT == 1)
 579                                 return this->GetUserCounter();
 580                 }
 581                 /* Set to -1 by OnUserPreKick if explicit allow was set */
 582                 if (MOD_RESULT != -1)
 583                 {
 584                         FOREACH_RESULT(I_OnAccessCheck,OnAccessCheck(src,user,this,AC_KICK));
 585                         if ((MOD_RESULT == ACR_DENY) && (!ServerInstance->ULine(src->server)))
 586                                 return this->GetUserCounter();
 587
 588                         if ((MOD_RESULT == ACR_DEFAULT) || (!ServerInstance->ULine(src->server)))
 589                         {
 590                                 int them = this->GetStatus(src);
 591                                 int us = this->GetStatus(user);
 592                                 if ((them < STATUS_HOP) || (them < us))
 593                                 {
 594                                         if (them == STATUS_HOP)
 595                                         {
 596                                                 src->WriteServ("482 %s %s :You must be a channel operator",src->nick, this->name);
 597                                         }
 598                                         else
 599                                         {
 600                                                 src->WriteServ("482 %s %s :You must be at least a half-operator",src->nick, this->name);
 601                                         }
 602                                         return this->GetUserCounter();
 603                                 }
 604                         }
 605                 }
 606         }
 607
 608         FOREACH_MOD(I_OnUserKick,OnUserKick(src,user,this,reason));
 609
 610         for (UserChanList::const_iterator i = user->chans.begin(); i != user->chans.end(); i++)
 611         {
 612                 /* zap it from the channel list of the user */
 613                 if ((*i)->channel == this)
 614                 {
 615                         this->WriteChannel(src, "KICK %s %s :%s", this->name, user->nick, reason);
 616                         (*i)->uc_modes = 0;
 617                         (*i)->channel = NULL;
 618                         this->RemoveAllPrefixes(user);
 619                         break;
 620                 }
 621         }
 622
 623         if (!this->DelUser(user))
 624         /* if there are no users left on the channel */
 625         {
 626                 chan_hash::iterator iter = ServerInstance->chanlist.find(this->name);
 627
 628                 /* kill the record */
 629                 if (iter != ServerInstance->chanlist.end())
 630                 {
 631                         FOREACH_MOD(I_OnChannelDelete,OnChannelDelete(this));
 632                         ServerInstance->chanlist.erase(iter);
 633                 }
 634                 return 0;
 635         }
 636
 637         return this->GetUserCounter();
 638 }
 639
 640 void chanrec::WriteChannel(userrec* user, char* text, ...)
 641 {
 642         char textbuffer[MAXBUF];
 643         va_list argsPtr;
 644
 645         if (!user || !text)
 646                 return;
 647
 648         va_start(argsPtr, text);
 649         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 650         va_end(argsPtr);
 651
 652         this->WriteChannel(user, std::string(textbuffer));
 653 }
 654
 655 void chanrec::WriteChannel(userrec* user, const std::string &text)
 656 {
 657         CUList *ulist = this->GetUsers();
 658
 659         if (!user)
 660                 return;
 661
 662         for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
 663         {
 664                 if (IS_LOCAL(i->second))
 665                         user->WriteTo(i->second,text);
 666         }
 667 }
 668
 669 void chanrec::WriteChannelWithServ(const char* ServName, const char* text, ...)
 670 {
 671         char textbuffer[MAXBUF];
 672         va_list argsPtr;
 673
 674         if (!text)
 675                 return;
 676
 677         va_start(argsPtr, text);
 678         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 679         va_end(argsPtr);
 680
 681         this->WriteChannelWithServ(ServName, std::string(textbuffer));
 682 }
 683
 684 void chanrec::WriteChannelWithServ(const char* ServName, const std::string &text)
 685 {
 686         CUList *ulist = this->GetUsers();
 687
 688         for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
 689         {
 690                 if (IS_LOCAL(i->second))
 691                         i->second->WriteServ(text);
 692         }
 693 }
 694
 695 /* write formatted text from a source user to all users on a channel except
 696  * for the sender (for privmsg etc) */
 697 void chanrec::WriteAllExceptSender(userrec* user, bool serversource, char status, char* text, ...)
 698 {
 699         char textbuffer[MAXBUF];
 700         va_list argsPtr;
 701
 702         if (!text)
 703                 return;
 704
 705         va_start(argsPtr, text);
 706         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 707         va_end(argsPtr);
 708
 709         this->WriteAllExceptSender(user, serversource, status, std::string(textbuffer));
 710 }
 711
 712 void chanrec::WriteAllExceptSender(userrec* user, bool serversource, char status, const std::string& text)
 713 {
 714         CUList *ulist;
 715
 716         switch (status)
 717         {
 718                 case '@':
 719                         ulist = this->GetOppedUsers();
 720                         break;
 721                 case '%':
 722                         ulist = this->GetHalfoppedUsers();
 723                         break;
 724                 case '+':
 725                         ulist = this->GetVoicedUsers();
 726                         break;
 727                 default:
 728                         ulist = this->GetUsers();
 729                         break;
 730         }
 731
 732         for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
 733         {
 734                 if ((IS_LOCAL(i->second)) && (user != i->second))
 735                 {
 736                         if (serversource)
 737                                 i->second->WriteServ(text);
 738                         else
 739                                 i->second->WriteFrom(user,text);
 740                 }
 741         }
 742 }
 743
 744 /*
 745  * return a count of the users on a specific channel accounting for
 746  * invisible users who won't increase the count. e.g. for /LIST
 747  */
 748 int chanrec::CountInvisible()
 749 {
 750         int count = 0;
 751         CUList *ulist= this->GetUsers();
 752         for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
 753         {
 754                 if (!(i->second->modes[UM_INVISIBLE]))
 755                         count++;
 756         }
 757
 758         return count;
 759 }
 760
 761 char* chanrec::ChanModes(bool showkey)
 762 {
 763         static char scratch[MAXBUF];
 764         static char sparam[MAXBUF];
 765         char* offset = scratch;
 766         std::string extparam = "";
 767
 768         *scratch = '\0';
 769         *sparam = '\0';
 770
 771         /* This was still iterating up to 190, chanrec::custom_modes is only 64 elements -- Om */
 772         for(int n = 0; n < 64; n++)
 773         {
 774                 if(this->modes[n])
 775                 {
 776                         *offset++ = n + 65;
 777                         extparam = "";
 778                         switch (n)
 779                         {
 780                                 case CM_KEY:
 781                                         extparam = (showkey ? this->key : "<key>");
 782                                 break;
 783                                 case CM_LIMIT:
 784                                         extparam = ConvToStr(this->limit);
 785                                 break;
 786                                 case CM_NOEXTERNAL:
 787                                 case CM_TOPICLOCK:
 788                                 case CM_INVITEONLY:
 789                                 case CM_MODERATED:
 790                                 case CM_SECRET:
 791                                 case CM_PRIVATE:
 792                                         /* We know these have no parameters */
 793                                 break;
 794                                 default:
 795                                         extparam = this->GetModeParameter(n + 65);
 796                                 break;
 797                         }
 798                         if (extparam != "")
 799                         {
 800                                 charlcat(sparam,' ',MAXBUF);
 801                                 strlcat(sparam,extparam.c_str(),MAXBUF);
 802                         }
 803                 }
 804         }
 805
 806         /* Null terminate scratch */
 807         *offset = '\0';
 808         strlcat(scratch,sparam,MAXBUF);
 809         return scratch;
 810 }
 811
 812 /* compile a userlist of a channel into a string, each nick seperated by
 813  * spaces and op, voice etc status shown as @ and +, and send it to 'user'
 814  */
 815 void chanrec::UserList(userrec *user)
 816 {
 817         char list[MAXBUF];
 818         size_t dlen, curlen;
 819         int MOD_RESULT = 0;
 820
 821         FOREACH_RESULT(I_OnUserList,OnUserList(user, this));
 822         ServerInstance->Log(DEBUG,"MOD_RESULT for UserList = %d",MOD_RESULT);
 823         if (MOD_RESULT == 1)
 824                 return;
 825
 826         ServerInstance->Log(DEBUG,"Using builtin NAMES list generation");
 827
 828         dlen = curlen = snprintf(list,MAXBUF,"353 %s = %s :", user->nick, this->name);
 829
 830         int numusers = 0;
 831         char* ptr = list + dlen;
 832
 833         CUList *ulist= this->GetUsers();
 834
 835         /* Improvement by Brain - this doesnt change in value, so why was it inside
 836          * the loop?
 837          */
 838         bool has_user = this->HasUser(user);
 839
 840         for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
 841         {
 842                 if ((!has_user) && (i->second->modes[UM_INVISIBLE]))
 843                 {
 844                         /*
 845                          * user is +i, and source not on the channel, does not show
 846                          * nick in NAMES list
 847                          */
 848                         continue;
 849                 }
 850
 851                 size_t ptrlen = snprintf(ptr, MAXBUF, "%s%s ", this->GetPrefixChar(i->second), i->second->nick);
 852
 853                 curlen += ptrlen;
 854                 ptr += ptrlen;
 855
 856                 numusers++;
 857
 858                 if (curlen > (480-NICKMAX))
 859                 {
 860                         /* list overflowed into multiple numerics */
 861                         user->WriteServ(std::string(list));
 862
 863                         /* reset our lengths */
 864                         dlen = curlen = snprintf(list,MAXBUF,"353 %s = %s :", user->nick, this->name);
 865                         ptr = list + dlen;
 866
 867                         ptrlen = 0;
 868                         numusers = 0;
 869                 }
 870         }
 871
 872         /* if whats left in the list isnt empty, send it */
 873         if (numusers)
 874         {
 875                 user->WriteServ(std::string(list));
 876         }
 877
 878         user->WriteServ("366 %s %s :End of /NAMES list.", user->nick, this->name);
 879 }
 880
 881 long chanrec::GetMaxBans()
 882 {
 883         std::string x;
 884         for (std::map<std::string,int>::iterator n = ServerInstance->Config->maxbans.begin(); n != ServerInstance->Config->maxbans.end(); n++)
 885         {
 886                 x = n->first;
 887                 if (match(this->name,x.c_str()))
 888                 {
 889                         return n->second;
 890                 }
 891         }
 892         return 64;
 893 }
 894
 895
 896 /* returns the status character for a given user on a channel, e.g. @ for op,
 897  * % for halfop etc. If the user has several modes set, the highest mode
 898  * the user has must be returned.
 899  */
 900 const char* chanrec::GetPrefixChar(userrec *user)
 901 {
 902         static char px[2];
 903         unsigned int mx = 0;
 904
 905         *px = 0;
 906         *(px+1) = 0;
 907
 908         prefixlist::iterator n = prefixes.find(user);
 909         if (n != prefixes.end())
 910         {
 911                 for (std::vector<prefixtype>::iterator x = n->second.begin(); x != n->second.end(); x++)
 912                 {
 913                         if (x->second > mx)
 914                         {
 915                                 *px = x->first;
 916                                 mx  = x->second;
 917                         }
 918                 }
 919         }
 920
 921         return px;
 922 }
 923
 924 const char* chanrec::GetAllPrefixChars(userrec* user)
 925 {
 926         static char prefix[MAXBUF];
 927         int ctr = 0;
 928         *prefix = 0;
 929
 930         prefixlist::iterator n = prefixes.find(user);
 931         if (n != prefixes.end())
 932         {
 933                 for (std::vector<prefixtype>::iterator x = n->second.begin(); x != n->second.end(); x++)
 934                 {
 935                         prefix[ctr++] = x->first;
 936                 }
 937         }
 938
 939         prefix[ctr] = 0;
 940
 941         return prefix;
 942 }
 943
 944 unsigned int chanrec::GetPrefixValue(userrec* user)
 945 {
 946         unsigned int mx = 0;
 947
 948         prefixlist::iterator n = prefixes.find(user);
 949         if (n != prefixes.end())
 950         {
 951                 for (std::vector<prefixtype>::iterator x = n->second.begin(); x != n->second.end(); x++)
 952                 {
 953                         if (x->second > mx)
 954                                 mx  = x->second;
 955                 }
 956         }
 957
 958         return mx;
 959 }
 960
 961
 962 int chanrec::GetStatusFlags(userrec *user)
 963 {
 964         for (std::vector<ucrec*>::const_iterator i = user->chans.begin(); i != user->chans.end(); i++)
 965         {
 966                 if ((*i)->channel == this)
 967                 {
 968                         return (*i)->uc_modes;
 969                 }
 970         }
 971         return 0;
 972 }
 973
 974
 975 int chanrec::GetStatus(userrec *user)
 976 {
 977         if (ServerInstance->ULine(user->server))
 978                 return STATUS_OP;
 979
 980         for (std::vector<ucrec*>::const_iterator i = user->chans.begin(); i != user->chans.end(); i++)
 981         {
 982                 if ((*i)->channel == this)
 983                 {
 984                         if (((*i)->uc_modes & UCMODE_OP) > 0)
 985                         {
 986                                 return STATUS_OP;
 987                         }
 988                         if (((*i)->uc_modes & UCMODE_HOP) > 0)
 989                         {
 990                                 return STATUS_HOP;
 991                         }
 992                         if (((*i)->uc_modes & UCMODE_VOICE) > 0)
 993                         {
 994                                 return STATUS_VOICE;
 995                         }
 996                         return STATUS_NORMAL;
 997                 }
 998         }
 999         return STATUS_NORMAL;
1000 }
1001
1002 /*bool ModeParser::PrefixComparison(const prefixtype one, const prefixtype two)
1003 {
1004         return one.second > two.second;
1005 }*/
1006
1007 void chanrec::SetPrefix(userrec* user, char prefix, unsigned int prefix_value, bool adding)
1008 {
1009         prefixlist::iterator n = prefixes.find(user);
1010         prefixtype pfx = std::make_pair(prefix,prefix_value);
1011         if (adding)
1012         {
1013                 if (n != prefixes.end())
1014                 {
1015                         if (std::find(n->second.begin(), n->second.end(), pfx) == n->second.end())
1016                         {
1017                                 n->second.push_back(pfx);
1018                                 std::sort(n->second.begin(), n->second.end(), ModeParser::PrefixComparison);
1019                         }
1020                 }
1021                 else
1022                 {
1023                         pfxcontainer one;
1024                         one.push_back(pfx);
1025                         prefixes.insert(std::make_pair<userrec*,pfxcontainer>(user, one));
1026                 }
1027         }
1028         else
1029         {
1030                 if (n != prefixes.end())
1031                 {
1032                         pfxcontainer::iterator x = std::find(n->second.begin(), n->second.end(), pfx);
1033                         if (x != n->second.end())
1034                                 n->second.erase(x);
1035                 }
1036         }
1037 }
1038
1039 void chanrec::RemoveAllPrefixes(userrec* user)
1040 {
1041         prefixlist::iterator n = prefixes.find(user);
1042         if (n != prefixes.end())
1043                 prefixes.erase(n);
1044 }
1045