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