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         user->ModChannelCount(1);
 429         Ptr->WriteChannel(user,"JOIN :%s",Ptr->name);
 430
 431         /* Major improvement by Brain - we dont need to be calculating all this pointlessly for remote users */
 432         if (IS_LOCAL(user))
 433         {
 434                 if (Ptr->topicset)
 435                 {
 436                         user->WriteServ("332 %s %s :%s", user->nick, Ptr->name, Ptr->topic);
 437                         user->WriteServ("333 %s %s %s %lu", user->nick, Ptr->name, Ptr->setby, (unsigned long)Ptr->topicset);
 438                 }
 439                 Ptr->UserList(user);
 440         }
 441         FOREACH_MOD_I(Instance,I_OnUserJoin,OnUserJoin(user,Ptr));
 442         return Ptr;
 443 }
 444
 445 /* chanrec::PartUser
 446  * remove a channel from a users record, and remove the record from the hash
 447  * if the channel has become empty
 448  */
 449 long chanrec::PartUser(userrec *user, const char* reason)
 450 {
 451         if (!user)
 452                 return this->GetUserCounter();
 453
 454         for (unsigned int i =0; i < user->chans.size(); i++)
 455         {
 456                 /* zap it from the channel list of the user */
 457                 if (user->chans[i]->channel == this)
 458                 {
 459                         if (reason)
 460                         {
 461                                 FOREACH_MOD(I_OnUserPart,OnUserPart(user, this, reason));
 462                                 this->WriteChannel(user, "PART %s :%s", this->name, reason);
 463                         }
 464                         else
 465                         {
 466                                 FOREACH_MOD(I_OnUserPart,OnUserPart(user, this, ""));
 467                                 this->WriteChannel(user, "PART :%s", this->name);
 468                         }
 469                         user->chans[i]->uc_modes = 0;
 470                         user->chans[i]->channel = NULL;
 471                         user->ModChannelCount(-1);
 472                         this->RemoveAllPrefixes(user);
 473                         break;
 474                 }
 475         }
 476
 477         if (!this->DelUser(user)) /* if there are no users left on the channel... */
 478         {
 479                 chan_hash::iterator iter = ServerInstance->chanlist.find(this->name);
 480                 /* kill the record */
 481                 if (iter != ServerInstance->chanlist.end())
 482                 {
 483                         ServerInstance->Log(DEBUG,"del_channel: destroyed: %s", this->name);
 484                         FOREACH_MOD(I_OnChannelDelete,OnChannelDelete(this));
 485                         ServerInstance->chanlist.erase(iter);
 486                 }
 487                 return 0;
 488         }
 489
 490         return this->GetUserCounter();
 491 }
 492
 493 long chanrec::ServerKickUser(userrec* user, const char* reason, bool triggerevents)
 494 {
 495         if (!user || !reason)
 496                 return this->GetUserCounter();
 497
 498         if (IS_LOCAL(user))
 499         {
 500                 if (!this->HasUser(user))
 501                 {
 502                         /* Not on channel */
 503                         return this->GetUserCounter();
 504                 }
 505         }
 506
 507         if (triggerevents)
 508         {
 509                 FOREACH_MOD(I_OnUserKick,OnUserKick(NULL,user,this,reason));
 510         }
 511
 512         for (unsigned int i =0; i < user->chans.size(); i++)
 513         {
 514                 if (user->chans[i]->channel == this)
 515                 {
 516                         this->WriteChannelWithServ(ServerInstance->Config->ServerName, "KICK %s %s :%s", this->name, user->nick, reason);
 517                         user->chans[i]->uc_modes = 0;
 518                         user->chans[i]->channel = NULL;
 519                         this->RemoveAllPrefixes(user);
 520                         break;
 521                 }
 522         }
 523
 524         if (!this->DelUser(user))
 525         {
 526                 chan_hash::iterator iter = ServerInstance->chanlist.find(this->name);
 527                 /* kill the record */
 528                 if (iter != ServerInstance->chanlist.end())
 529                 {
 530                         FOREACH_MOD(I_OnChannelDelete,OnChannelDelete(this));
 531                         ServerInstance->chanlist.erase(iter);
 532                 }
 533                 return 0;
 534         }
 535
 536         return this->GetUserCounter();
 537 }
 538
 539 long chanrec::KickUser(userrec *src, userrec *user, const char* reason)
 540 {
 541         if (!src || !user || !reason)
 542                 return this->GetUserCounter();
 543
 544         if (IS_LOCAL(src))
 545         {
 546                 if (!this->HasUser(user))
 547                 {
 548                         src->WriteServ("441 %s %s %s :They are not on that channel",src->nick, user->nick, this->name);
 549                         return this->GetUserCounter();
 550                 }
 551                 if ((ServerInstance->ULine(user->server)) && (!ServerInstance->ULine(src->server)))
 552                 {
 553                         src->WriteServ("482 %s %s :Only a u-line may kick a u-line from a channel.",src->nick, this->name);
 554                         return this->GetUserCounter();
 555                 }
 556                 int MOD_RESULT = 0;
 557
 558                 if (!ServerInstance->ULine(src->server))
 559                 {
 560                         MOD_RESULT = 0;
 561                         FOREACH_RESULT(I_OnUserPreKick,OnUserPreKick(src,user,this,reason));
 562                         if (MOD_RESULT == 1)
 563                                 return this->GetUserCounter();
 564                 }
 565                 /* Set to -1 by OnUserPreKick if explicit allow was set */
 566                 if (MOD_RESULT != -1)
 567                 {
 568                         FOREACH_RESULT(I_OnAccessCheck,OnAccessCheck(src,user,this,AC_KICK));
 569                         if ((MOD_RESULT == ACR_DENY) && (!ServerInstance->ULine(src->server)))
 570                                 return this->GetUserCounter();
 571
 572                         if ((MOD_RESULT == ACR_DEFAULT) || (!ServerInstance->ULine(src->server)))
 573                         {
 574                                 int them = this->GetStatus(src);
 575                                 int us = this->GetStatus(user);
 576                                 if ((them < STATUS_HOP) || (them < us))
 577                                 {
 578                                         if (them == STATUS_HOP)
 579                                         {
 580                                                 src->WriteServ("482 %s %s :You must be a channel operator",src->nick, this->name);
 581                                         }
 582                                         else
 583                                         {
 584                                                 src->WriteServ("482 %s %s :You must be at least a half-operator",src->nick, this->name);
 585                                         }
 586                                         return this->GetUserCounter();
 587                                 }
 588                         }
 589                 }
 590         }
 591
 592         FOREACH_MOD(I_OnUserKick,OnUserKick(src,user,this,reason));
 593
 594         for (UserChanList::const_iterator i = user->chans.begin(); i != user->chans.end(); i++)
 595         {
 596                 /* zap it from the channel list of the user */
 597                 if ((*i)->channel == this)
 598                 {
 599                         this->WriteChannel(src, "KICK %s %s :%s", this->name, user->nick, reason);
 600                         (*i)->uc_modes = 0;
 601                         (*i)->channel = NULL;
 602                         this->RemoveAllPrefixes(user);
 603                         break;
 604                 }
 605         }
 606
 607         if (!this->DelUser(user))
 608         /* if there are no users left on the channel */
 609         {
 610                 chan_hash::iterator iter = ServerInstance->chanlist.find(this->name);
 611
 612                 /* kill the record */
 613                 if (iter != ServerInstance->chanlist.end())
 614                 {
 615                         FOREACH_MOD(I_OnChannelDelete,OnChannelDelete(this));
 616                         ServerInstance->chanlist.erase(iter);
 617                 }
 618                 return 0;
 619         }
 620
 621         return this->GetUserCounter();
 622 }
 623
 624 void chanrec::WriteChannel(userrec* user, char* text, ...)
 625 {
 626         char textbuffer[MAXBUF];
 627         va_list argsPtr;
 628
 629         if (!user || !text)
 630                 return;
 631
 632         va_start(argsPtr, text);
 633         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 634         va_end(argsPtr);
 635
 636         this->WriteChannel(user, std::string(textbuffer));
 637 }
 638
 639 void chanrec::WriteChannel(userrec* user, const std::string &text)
 640 {
 641         CUList *ulist = this->GetUsers();
 642
 643         if (!user)
 644                 return;
 645
 646         for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
 647         {
 648                 if (IS_LOCAL(i->second))
 649                         user->WriteTo(i->second,text);
 650         }
 651 }
 652
 653 void chanrec::WriteChannelWithServ(const char* ServName, const char* text, ...)
 654 {
 655         char textbuffer[MAXBUF];
 656         va_list argsPtr;
 657
 658         if (!text)
 659                 return;
 660
 661         va_start(argsPtr, text);
 662         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 663         va_end(argsPtr);
 664
 665         this->WriteChannelWithServ(ServName, std::string(textbuffer));
 666 }
 667
 668 void chanrec::WriteChannelWithServ(const char* ServName, const std::string &text)
 669 {
 670         CUList *ulist = this->GetUsers();
 671
 672         for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
 673         {
 674                 if (IS_LOCAL(i->second))
 675                         i->second->WriteServ(text);
 676         }
 677 }
 678
 679 /* write formatted text from a source user to all users on a channel except
 680  * for the sender (for privmsg etc) */
 681 void chanrec::WriteAllExceptSender(userrec* user, char status, char* text, ...)
 682 {
 683         char textbuffer[MAXBUF];
 684         va_list argsPtr;
 685
 686         if (!user || !text)
 687                 return;
 688
 689         va_start(argsPtr, text);
 690         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 691         va_end(argsPtr);
 692
 693         this->WriteAllExceptSender(user, status, std::string(textbuffer));
 694 }
 695
 696 void chanrec::WriteAllExceptSender(userrec* user, char status, const std::string& text)
 697 {
 698         CUList *ulist;
 699
 700         if (!user)
 701                 return;
 702
 703         switch (status)
 704         {
 705                 case '@':
 706                         ulist = this->GetOppedUsers();
 707                         break;
 708                 case '%':
 709                         ulist = this->GetHalfoppedUsers();
 710                         break;
 711                 case '+':
 712                         ulist = this->GetVoicedUsers();
 713                         break;
 714                 default:
 715                         ulist = this->GetUsers();
 716                         break;
 717         }
 718
 719         for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
 720         {
 721                 if ((IS_LOCAL(i->second)) && (user != i->second))
 722                         i->second->WriteFrom(user,text);
 723         }
 724 }
 725
 726 /*
 727  * return a count of the users on a specific channel accounting for
 728  * invisible users who won't increase the count. e.g. for /LIST
 729  */
 730 int chanrec::CountInvisible()
 731 {
 732         int count = 0;
 733         CUList *ulist= this->GetUsers();
 734         for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
 735         {
 736                 if (!(i->second->modes[UM_INVISIBLE]))
 737                         count++;
 738         }
 739
 740         return count;
 741 }
 742
 743 char* chanrec::ChanModes(bool showkey)
 744 {
 745         static char scratch[MAXBUF];
 746         static char sparam[MAXBUF];
 747         char* offset = scratch;
 748         std::string extparam = "";
 749
 750         *scratch = '\0';
 751         *sparam = '\0';
 752
 753         /* This was still iterating up to 190, chanrec::custom_modes is only 64 elements -- Om */
 754         for(int n = 0; n < 64; n++)
 755         {
 756                 if(this->modes[n])
 757                 {
 758                         *offset++ = n + 65;
 759                         extparam = "";
 760                         switch (n)
 761                         {
 762                                 case CM_KEY:
 763                                         extparam = (showkey ? this->key : "<key>");
 764                                 break;
 765                                 case CM_LIMIT:
 766                                         extparam = ConvToStr(this->limit);
 767                                 break;
 768                                 case CM_NOEXTERNAL:
 769                                 case CM_TOPICLOCK:
 770                                 case CM_INVITEONLY:
 771                                 case CM_MODERATED:
 772                                 case CM_SECRET:
 773                                 case CM_PRIVATE:
 774                                         /* We know these have no parameters */
 775                                 break;
 776                                 default:
 777                                         extparam = this->GetModeParameter(n + 65);
 778                                 break;
 779                         }
 780                         if (extparam != "")
 781                         {
 782                                 charlcat(sparam,' ',MAXBUF);
 783                                 strlcat(sparam,extparam.c_str(),MAXBUF);
 784                         }
 785                 }
 786         }
 787
 788         /* Null terminate scratch */
 789         *offset = '\0';
 790         strlcat(scratch,sparam,MAXBUF);
 791         return scratch;
 792 }
 793
 794 /* compile a userlist of a channel into a string, each nick seperated by
 795  * spaces and op, voice etc status shown as @ and +, and send it to 'user'
 796  */
 797 void chanrec::UserList(userrec *user)
 798 {
 799         char list[MAXBUF];
 800         size_t dlen, curlen;
 801         int MOD_RESULT = 0;
 802
 803         FOREACH_RESULT(I_OnUserList,OnUserList(user, this));
 804         ServerInstance->Log(DEBUG,"MOD_RESULT for UserList = %d",MOD_RESULT);
 805         if (MOD_RESULT == 1)
 806                 return;
 807
 808         ServerInstance->Log(DEBUG,"Using builtin NAMES list generation");
 809
 810         dlen = curlen = snprintf(list,MAXBUF,"353 %s = %s :", user->nick, this->name);
 811
 812         int numusers = 0;
 813         char* ptr = list + dlen;
 814
 815         CUList *ulist= this->GetUsers();
 816
 817         /* Improvement by Brain - this doesnt change in value, so why was it inside
 818          * the loop?
 819          */
 820         bool has_user = this->HasUser(user);
 821
 822         for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
 823         {
 824                 if ((!has_user) && (i->second->modes[UM_INVISIBLE]))
 825                 {
 826                         /*
 827                          * user is +i, and source not on the channel, does not show
 828                          * nick in NAMES list
 829                          */
 830                         continue;
 831                 }
 832
 833                 size_t ptrlen = snprintf(ptr, MAXBUF, "%s%s ", this->GetPrefixChar(i->second), i->second->nick);
 834
 835                 curlen += ptrlen;
 836                 ptr += ptrlen;
 837
 838                 numusers++;
 839
 840                 if (curlen > (480-NICKMAX))
 841                 {
 842                         /* list overflowed into multiple numerics */
 843                         user->WriteServ(list);
 844
 845                         /* reset our lengths */
 846                         dlen = curlen = snprintf(list,MAXBUF,"353 %s = %s :", user->nick, this->name);
 847                         ptr = list + dlen;
 848
 849                         ptrlen = 0;
 850                         numusers = 0;
 851                 }
 852         }
 853
 854         /* if whats left in the list isnt empty, send it */
 855         if (numusers)
 856         {
 857                 user->WriteServ(list);
 858         }
 859
 860         user->WriteServ("366 %s %s :End of /NAMES list.", user->nick, this->name);
 861 }
 862
 863 long chanrec::GetMaxBans()
 864 {
 865         std::string x;
 866         for (std::map<std::string,int>::iterator n = ServerInstance->Config->maxbans.begin(); n != ServerInstance->Config->maxbans.end(); n++)
 867         {
 868                 x = n->first;
 869                 if (match(this->name,x.c_str()))
 870                 {
 871                         return n->second;
 872                 }
 873         }
 874         return 64;
 875 }
 876
 877
 878 /* returns the status character for a given user on a channel, e.g. @ for op,
 879  * % for halfop etc. If the user has several modes set, the highest mode
 880  * the user has must be returned.
 881  */
 882 const char* chanrec::GetPrefixChar(userrec *user)
 883 {
 884         static char px[2];
 885         unsigned int mx = 0;
 886
 887         *px = 0;
 888         *(px+1) = 0;
 889
 890         prefixlist::iterator n = prefixes.find(user);
 891         if (n != prefixes.end())
 892         {
 893                 for (std::vector<prefixtype>::iterator x = n->second.begin(); x != n->second.end(); x++)
 894                 {
 895                         if (x->second > mx)
 896                         {
 897                                 *px = x->first;
 898                                 mx  = x->second;
 899                         }
 900                 }
 901         }
 902
 903         return px;
 904 }
 905
 906 const char* chanrec::GetAllPrefixChars(userrec* user)
 907 {
 908         static char prefix[MAXBUF];
 909         int ctr = 0;
 910         *prefix = 0;
 911
 912         prefixlist::iterator n = prefixes.find(user);
 913         if (n != prefixes.end())
 914         {
 915                 for (std::vector<prefixtype>::iterator x = n->second.begin(); x != n->second.end(); x++)
 916                 {
 917                         prefix[ctr++] = x->first;
 918                 }
 919         }
 920
 921         prefix[ctr] = 0;
 922
 923         return prefix;
 924 }
 925
 926 unsigned int chanrec::GetPrefixValue(userrec* user)
 927 {
 928         unsigned int mx = 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                         if (x->second > mx)
 936                                 mx  = x->second;
 937                 }
 938         }
 939
 940         return mx;
 941 }
 942
 943
 944 int chanrec::GetStatusFlags(userrec *user)
 945 {
 946         for (std::vector<ucrec*>::const_iterator i = user->chans.begin(); i != user->chans.end(); i++)
 947         {
 948                 if ((*i)->channel == this)
 949                 {
 950                         return (*i)->uc_modes;
 951                 }
 952         }
 953         return 0;
 954 }
 955
 956
 957 int chanrec::GetStatus(userrec *user)
 958 {
 959         if (ServerInstance->ULine(user->server))
 960                 return STATUS_OP;
 961
 962         for (std::vector<ucrec*>::const_iterator i = user->chans.begin(); i != user->chans.end(); i++)
 963         {
 964                 if ((*i)->channel == this)
 965                 {
 966                         if (((*i)->uc_modes & UCMODE_OP) > 0)
 967                         {
 968                                 return STATUS_OP;
 969                         }
 970                         if (((*i)->uc_modes & UCMODE_HOP) > 0)
 971                         {
 972                                 return STATUS_HOP;
 973                         }
 974                         if (((*i)->uc_modes & UCMODE_VOICE) > 0)
 975                         {
 976                                 return STATUS_VOICE;
 977                         }
 978                         return STATUS_NORMAL;
 979                 }
 980         }
 981         return STATUS_NORMAL;
 982 }
 983
 984 /*bool ModeParser::PrefixComparison(const prefixtype one, const prefixtype two)
 985 {
 986         return one.second > two.second;
 987 }*/
 988
 989 void chanrec::SetPrefix(userrec* user, char prefix, unsigned int prefix_value, bool adding)
 990 {
 991         prefixlist::iterator n = prefixes.find(user);
 992         prefixtype pfx = std::make_pair(prefix,prefix_value);
 993         if (adding)
 994         {
 995                 if (n != prefixes.end())
 996                 {
 997                         if (std::find(n->second.begin(), n->second.end(), pfx) == n->second.end())
 998                         {
 999                                 n->second.push_back(pfx);
1000                                 std::sort(n->second.begin(), n->second.end(), ModeParser::PrefixComparison);
1001                         }
1002                 }
1003                 else
1004                 {
1005                         pfxcontainer one;
1006                         one.push_back(pfx);
1007                         prefixes.insert(std::make_pair<userrec*,pfxcontainer>(user, one));
1008                 }
1009         }
1010         else
1011         {
1012                 if (n != prefixes.end())
1013                 {
1014                         pfxcontainer::iterator x = std::find(n->second.begin(), n->second.end(), pfx);
1015                         if (x != n->second.end())
1016                                 n->second.erase(x);
1017                 }
1018         }
1019 }
1020
1021 void chanrec::RemoveAllPrefixes(userrec* user)
1022 {
1023         prefixlist::iterator n = prefixes.find(user);
1024         if (n != prefixes.end())
1025                 prefixes.erase(n);
1026 }
1027