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                 *Ptr->setby = 0;
 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) || strcmp(key,Ptr->key))
 264                                                 {
 265                                                         user->WriteServ("475 %s %s :Cannot join channel (Incorrect channel key)",user->nick, Ptr->name);
 266                                                         return NULL;
 267                                                 }
 268                                         }
 269                                 }
 270                                 if (Ptr->modes[CM_INVITEONLY])
 271                                 {
 272                                         MOD_RESULT = 0;
 273                                         irc::string xname(Ptr->name);
 274                                         FOREACH_RESULT_I(Instance,I_OnCheckInvite,OnCheckInvite(user, Ptr));
 275                                         if (!MOD_RESULT)
 276                                         {
 277                                                 if (user->IsInvited(xname))
 278                                                 {
 279                                                         /* user was invited to channel */
 280                                                         /* there may be an optional channel NOTICE here */
 281                                                 }
 282                                                 else
 283                                                 {
 284                                                         user->WriteServ("473 %s %s :Cannot join channel (Invite only)",user->nick, Ptr->name);
 285                                                         return NULL;
 286                                                 }
 287                                         }
 288                                         user->RemoveInvite(xname);
 289                                 }
 290                                 if (Ptr->limit)
 291                                 {
 292                                         MOD_RESULT = 0;
 293                                         FOREACH_RESULT_I(Instance,I_OnCheckLimit,OnCheckLimit(user, Ptr));
 294                                         if (!MOD_RESULT)
 295                                         {
 296                                                 if (Ptr->GetUserCounter() >= Ptr->limit)
 297                                                 {
 298                                                         user->WriteServ("471 %s %s :Cannot join channel (Channel is full)",user->nick, Ptr->name);
 299                                                         return NULL;
 300                                                 }
 301                                         }
 302                                 }
 303                                 if (Ptr->bans.size())
 304                                 {
 305                                         MOD_RESULT = 0;
 306                                         FOREACH_RESULT_I(Instance,I_OnCheckBan,OnCheckBan(user, Ptr));
 307                                         char mask[MAXBUF];
 308                                         sprintf(mask,"%s!%s@%s",user->nick, user->ident, user->GetIPString());
 309                                         if (!MOD_RESULT)
 310                                         {
 311                                                 if (Ptr->IsBanned(user))
 312                                                 {
 313                                                         user->WriteServ("474 %s %s :Cannot join channel (You're banned)",user->nick, Ptr->name);
 314                                                         return NULL;
 315                                                 }
 316                                         }
 317                                 }
 318                         }
 319                 }
 320                 else
 321                 {
 322                         Instance->Log(DEBUG,"chanrec::JoinUser(): Overridden checks");
 323                 }
 324                 created = 1;
 325         }
 326
 327         for (UserChanList::const_iterator index = user->chans.begin(); index != user->chans.end(); index++)
 328         {
 329                 if ((*index)->channel == NULL)
 330                 {
 331                         return chanrec::ForceChan(Instance, Ptr, *index, user, created);
 332                 }
 333         }
 334
 335         /*
 336          * XXX: If the user is an oper here, we can just extend their user->chans vector by one
 337          * and put the channel in here. Same for remote users which are not bound by
 338          * the channel limits. Otherwise, nope, youre boned.
 339          */
 340         if (!IS_LOCAL(user)) /* was a check on fd < 0 */
 341         {
 342                 ucrec* a = new ucrec();
 343                 chanrec* c = chanrec::ForceChan(Instance, Ptr,a,user,created);
 344                 user->chans.push_back(a);
 345                 return c;
 346         }
 347         else if (*user->oper)
 348         {
 349                 /* Oper allows extension up to the OPERMAXCHANS value */
 350                 if (user->chans.size() < OPERMAXCHANS)
 351                 {
 352                         ucrec* a = new ucrec();
 353                         chanrec* c = chanrec::ForceChan(Instance, Ptr,a,user,created);
 354                         user->chans.push_back(a);
 355                         return c;
 356                 }
 357         }
 358
 359         user->WriteServ("405 %s %s :You are on too many channels",user->nick, cname);
 360
 361         if (created == 2)
 362         {
 363                 Instance->Log(DEBUG,"BLAMMO, Whacking channel.");
 364                 /* Things went seriously pear shaped, so take this away. bwahaha. */
 365                 chan_hash::iterator n = Instance->chanlist.find(cname);
 366                 if (n != Instance->chanlist.end())
 367                 {
 368                         Ptr->DelUser(user);
 369                         DELETE(Ptr);
 370                         Instance->chanlist.erase(n);
 371                         for (unsigned int index =0; index < user->chans.size(); index++)
 372                         {
 373                                 if (user->chans[index]->channel == Ptr)
 374                                 {
 375                                         user->chans[index]->channel = NULL;
 376                                         user->chans[index]->uc_modes = 0;
 377                                 }
 378                         }
 379                 }
 380         }
 381         else
 382         {
 383                 for (unsigned int index =0; index < user->chans.size(); index++)
 384                 {
 385                         if (user->chans[index]->channel == Ptr)
 386                         {
 387                                 user->chans[index]->channel = NULL;
 388                                 user->chans[index]->uc_modes = 0;
 389                         }
 390                 }
 391         }
 392         return NULL;
 393 }
 394
 395 chanrec* chanrec::ForceChan(InspIRCd* Instance, chanrec* Ptr,ucrec *a,userrec* user, int created)
 396 {
 397         if (created == 2)
 398         {
 399                 /* first user in is given ops */
 400                 a->uc_modes = UCMODE_OP;
 401                 Ptr->AddOppedUser(user);
 402                 Ptr->SetPrefix(user, '@', OP_VALUE, true);
 403         }
 404         else
 405         {
 406                 a->uc_modes = 0;
 407         }
 408
 409         a->channel = Ptr;
 410         Ptr->AddUser(user);
 411         user->ModChannelCount(1);
 412         Ptr->WriteChannel(user,"JOIN :%s",Ptr->name);
 413
 414         /* Major improvement by Brain - we dont need to be calculating all this pointlessly for remote users */
 415         if (IS_LOCAL(user))
 416         {
 417                 if (Ptr->topicset)
 418                 {
 419                         user->WriteServ("332 %s %s :%s", user->nick, Ptr->name, Ptr->topic);
 420                         user->WriteServ("333 %s %s %s %lu", user->nick, Ptr->name, Ptr->setby, (unsigned long)Ptr->topicset);
 421                 }
 422                 Ptr->UserList(user);
 423         }
 424         FOREACH_MOD_I(Instance,I_OnUserJoin,OnUserJoin(user,Ptr));
 425         return Ptr;
 426 }
 427
 428 bool chanrec::IsBanned(userrec* user)
 429 {
 430         char mask[MAXBUF];
 431         sprintf(mask,"%s!%s@%s",user->nick, user->ident, user->GetIPString());
 432         for (BanList::iterator i = this->bans.begin(); i != this->bans.end(); i++)
 433         {
 434                 /* This allows CIDR ban matching
 435                  *
 436                  *        Full masked host                      Full unmasked host                   IP with/without CIDR
 437                  */
 438                 if ((match(user->GetFullHost(),i->data)) || (match(user->GetFullRealHost(),i->data)) || (match(mask, i->data, true)))
 439                 {
 440                         return true;
 441                 }
 442
 443         }
 444         return false;
 445 }
 446
 447 /* chanrec::PartUser
 448  * remove a channel from a users record, and remove the record from the hash
 449  * if the channel has become empty
 450  */
 451 long chanrec::PartUser(userrec *user, const char* reason)
 452 {
 453         if (!user)
 454                 return this->GetUserCounter();
 455
 456         for (unsigned int i =0; i < user->chans.size(); i++)
 457         {
 458                 /* zap it from the channel list of the user */
 459                 if (user->chans[i]->channel == this)
 460                 {
 461                         if (reason)
 462                         {
 463                                 FOREACH_MOD(I_OnUserPart,OnUserPart(user, this, reason));
 464                                 this->WriteChannel(user, "PART %s :%s", this->name, reason);
 465                         }
 466                         else
 467                         {
 468                                 FOREACH_MOD(I_OnUserPart,OnUserPart(user, this, ""));
 469                                 this->WriteChannel(user, "PART :%s", this->name);
 470                         }
 471                         user->chans[i]->uc_modes = 0;
 472                         user->chans[i]->channel = NULL;
 473                         user->ModChannelCount(-1);
 474                         this->RemoveAllPrefixes(user);
 475                         break;
 476                 }
 477         }
 478
 479         if (!this->DelUser(user)) /* if there are no users left on the channel... */
 480         {
 481                 chan_hash::iterator iter = ServerInstance->chanlist.find(this->name);
 482                 /* kill the record */
 483                 if (iter != ServerInstance->chanlist.end())
 484                 {
 485                         ServerInstance->Log(DEBUG,"del_channel: destroyed: %s", this->name);
 486                         FOREACH_MOD(I_OnChannelDelete,OnChannelDelete(this));
 487                         ServerInstance->chanlist.erase(iter);
 488                 }
 489                 return 0;
 490         }
 491
 492         return this->GetUserCounter();
 493 }
 494
 495 long chanrec::ServerKickUser(userrec* user, const char* reason, bool triggerevents)
 496 {
 497         if (!user || !reason)
 498                 return this->GetUserCounter();
 499
 500         if (IS_LOCAL(user))
 501         {
 502                 if (!this->HasUser(user))
 503                 {
 504                         /* Not on channel */
 505                         return this->GetUserCounter();
 506                 }
 507         }
 508
 509         if (triggerevents)
 510         {
 511                 FOREACH_MOD(I_OnUserKick,OnUserKick(NULL,user,this,reason));
 512         }
 513
 514         for (unsigned int i =0; i < user->chans.size(); i++)
 515         {
 516                 if (user->chans[i]->channel == this)
 517                 {
 518                         this->WriteChannelWithServ(ServerInstance->Config->ServerName, "KICK %s %s :%s", this->name, user->nick, reason);
 519                         user->chans[i]->uc_modes = 0;
 520                         user->chans[i]->channel = NULL;
 521                         this->RemoveAllPrefixes(user);
 522                         break;
 523                 }
 524         }
 525
 526         if (!this->DelUser(user))
 527         {
 528                 chan_hash::iterator iter = ServerInstance->chanlist.find(this->name);
 529                 /* kill the record */
 530                 if (iter != ServerInstance->chanlist.end())
 531                 {
 532                         FOREACH_MOD(I_OnChannelDelete,OnChannelDelete(this));
 533                         ServerInstance->chanlist.erase(iter);
 534                 }
 535                 return 0;
 536         }
 537
 538         return this->GetUserCounter();
 539 }
 540
 541 long chanrec::KickUser(userrec *src, userrec *user, const char* reason)
 542 {
 543         if (!src || !user || !reason)
 544                 return this->GetUserCounter();
 545
 546         if (IS_LOCAL(src))
 547         {
 548                 if (!this->HasUser(user))
 549                 {
 550                         src->WriteServ("441 %s %s %s :They are not on that channel",src->nick, user->nick, this->name);
 551                         return this->GetUserCounter();
 552                 }
 553                 if ((ServerInstance->ULine(user->server)) && (!ServerInstance->ULine(src->server)))
 554                 {
 555                         src->WriteServ("482 %s %s :Only a u-line may kick a u-line from a channel.",src->nick, this->name);
 556                         return this->GetUserCounter();
 557                 }
 558                 int MOD_RESULT = 0;
 559
 560                 if (!ServerInstance->ULine(src->server))
 561                 {
 562                         MOD_RESULT = 0;
 563                         FOREACH_RESULT(I_OnUserPreKick,OnUserPreKick(src,user,this,reason));
 564                         if (MOD_RESULT == 1)
 565                                 return this->GetUserCounter();
 566                 }
 567                 /* Set to -1 by OnUserPreKick if explicit allow was set */
 568                 if (MOD_RESULT != -1)
 569                 {
 570                         FOREACH_RESULT(I_OnAccessCheck,OnAccessCheck(src,user,this,AC_KICK));
 571                         if ((MOD_RESULT == ACR_DENY) && (!ServerInstance->ULine(src->server)))
 572                                 return this->GetUserCounter();
 573
 574                         if ((MOD_RESULT == ACR_DEFAULT) || (!ServerInstance->ULine(src->server)))
 575                         {
 576                                 int them = this->GetStatus(src);
 577                                 int us = this->GetStatus(user);
 578                                 if ((them < STATUS_HOP) || (them < us))
 579                                 {
 580                                         if (them == STATUS_HOP)
 581                                         {
 582                                                 src->WriteServ("482 %s %s :You must be a channel operator",src->nick, this->name);
 583                                         }
 584                                         else
 585                                         {
 586                                                 src->WriteServ("482 %s %s :You must be at least a half-operator",src->nick, this->name);
 587                                         }
 588                                         return this->GetUserCounter();
 589                                 }
 590                         }
 591                 }
 592         }
 593
 594         FOREACH_MOD(I_OnUserKick,OnUserKick(src,user,this,reason));
 595
 596         for (UserChanList::const_iterator i = user->chans.begin(); i != user->chans.end(); i++)
 597         {
 598                 /* zap it from the channel list of the user */
 599                 if ((*i)->channel == this)
 600                 {
 601                         this->WriteChannel(src, "KICK %s %s :%s", this->name, user->nick, reason);
 602                         (*i)->uc_modes = 0;
 603                         (*i)->channel = NULL;
 604                         this->RemoveAllPrefixes(user);
 605                         break;
 606                 }
 607         }
 608
 609         if (!this->DelUser(user))
 610         /* if there are no users left on the channel */
 611         {
 612                 chan_hash::iterator iter = ServerInstance->chanlist.find(this->name);
 613
 614                 /* kill the record */
 615                 if (iter != ServerInstance->chanlist.end())
 616                 {
 617                         FOREACH_MOD(I_OnChannelDelete,OnChannelDelete(this));
 618                         ServerInstance->chanlist.erase(iter);
 619                 }
 620                 return 0;
 621         }
 622
 623         return this->GetUserCounter();
 624 }
 625
 626 void chanrec::WriteChannel(userrec* user, char* text, ...)
 627 {
 628         char textbuffer[MAXBUF];
 629         va_list argsPtr;
 630
 631         if (!user || !text)
 632                 return;
 633
 634         va_start(argsPtr, text);
 635         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 636         va_end(argsPtr);
 637
 638         this->WriteChannel(user, std::string(textbuffer));
 639 }
 640
 641 void chanrec::WriteChannel(userrec* user, const std::string &text)
 642 {
 643         CUList *ulist = this->GetUsers();
 644
 645         if (!user)
 646                 return;
 647
 648         for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
 649         {
 650                 if (IS_LOCAL(i->second))
 651                         user->WriteTo(i->second,text);
 652         }
 653 }
 654
 655 void chanrec::WriteChannelWithServ(const char* ServName, const char* text, ...)
 656 {
 657         char textbuffer[MAXBUF];
 658         va_list argsPtr;
 659
 660         if (!text)
 661                 return;
 662
 663         va_start(argsPtr, text);
 664         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 665         va_end(argsPtr);
 666
 667         this->WriteChannelWithServ(ServName, std::string(textbuffer));
 668 }
 669
 670 void chanrec::WriteChannelWithServ(const char* ServName, const std::string &text)
 671 {
 672         CUList *ulist = this->GetUsers();
 673
 674         for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
 675         {
 676                 if (IS_LOCAL(i->second))
 677                         i->second->WriteServ(text);
 678         }
 679 }
 680
 681 /* write formatted text from a source user to all users on a channel except
 682  * for the sender (for privmsg etc) */
 683 void chanrec::WriteAllExceptSender(userrec* user, bool serversource, char status, char* text, ...)
 684 {
 685         char textbuffer[MAXBUF];
 686         va_list argsPtr;
 687
 688         if (!text)
 689                 return;
 690
 691         va_start(argsPtr, text);
 692         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 693         va_end(argsPtr);
 694
 695         this->WriteAllExceptSender(user, serversource, status, std::string(textbuffer));
 696 }
 697
 698 void chanrec::WriteAllExceptSender(userrec* user, bool serversource, char status, const std::string& text)
 699 {
 700         CUList *ulist;
 701
 702         switch (status)
 703         {
 704                 case '@':
 705                         ulist = this->GetOppedUsers();
 706                         break;
 707                 case '%':
 708                         ulist = this->GetHalfoppedUsers();
 709                         break;
 710                 case '+':
 711                         ulist = this->GetVoicedUsers();
 712                         break;
 713                 default:
 714                         ulist = this->GetUsers();
 715                         break;
 716         }
 717
 718         for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
 719         {
 720                 if ((IS_LOCAL(i->second)) && (user != i->second))
 721                 {
 722                         if (serversource)
 723                                 i->second->WriteServ(text);
 724                         else
 725                                 i->second->WriteFrom(user,text);
 726                 }
 727         }
 728 }
 729
 730 /*
 731  * return a count of the users on a specific channel accounting for
 732  * invisible users who won't increase the count. e.g. for /LIST
 733  */
 734 int chanrec::CountInvisible()
 735 {
 736         int count = 0;
 737         CUList *ulist= this->GetUsers();
 738         for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
 739         {
 740                 if (!(i->second->modes[UM_INVISIBLE]))
 741                         count++;
 742         }
 743
 744         return count;
 745 }
 746
 747 char* chanrec::ChanModes(bool showkey)
 748 {
 749         static char scratch[MAXBUF];
 750         static char sparam[MAXBUF];
 751         char* offset = scratch;
 752         std::string extparam = "";
 753
 754         *scratch = '\0';
 755         *sparam = '\0';
 756
 757         /* This was still iterating up to 190, chanrec::custom_modes is only 64 elements -- Om */
 758         for(int n = 0; n < 64; n++)
 759         {
 760                 if(this->modes[n])
 761                 {
 762                         *offset++ = n + 65;
 763                         extparam = "";
 764                         switch (n)
 765                         {
 766                                 case CM_KEY:
 767                                         extparam = (showkey ? this->key : "<key>");
 768                                 break;
 769                                 case CM_LIMIT:
 770                                         extparam = ConvToStr(this->limit);
 771                                 break;
 772                                 case CM_NOEXTERNAL:
 773                                 case CM_TOPICLOCK:
 774                                 case CM_INVITEONLY:
 775                                 case CM_MODERATED:
 776                                 case CM_SECRET:
 777                                 case CM_PRIVATE:
 778                                         /* We know these have no parameters */
 779                                 break;
 780                                 default:
 781                                         extparam = this->GetModeParameter(n + 65);
 782                                 break;
 783                         }
 784                         if (extparam != "")
 785                         {
 786                                 charlcat(sparam,' ',MAXBUF);
 787                                 strlcat(sparam,extparam.c_str(),MAXBUF);
 788                         }
 789                 }
 790         }
 791
 792         /* Null terminate scratch */
 793         *offset = '\0';
 794         strlcat(scratch,sparam,MAXBUF);
 795         return scratch;
 796 }
 797
 798 /* compile a userlist of a channel into a string, each nick seperated by
 799  * spaces and op, voice etc status shown as @ and +, and send it to 'user'
 800  */
 801 void chanrec::UserList(userrec *user)
 802 {
 803         char list[MAXBUF];
 804         size_t dlen, curlen;
 805         int MOD_RESULT = 0;
 806
 807         FOREACH_RESULT(I_OnUserList,OnUserList(user, this));
 808         ServerInstance->Log(DEBUG,"MOD_RESULT for UserList = %d",MOD_RESULT);
 809         if (MOD_RESULT == 1)
 810                 return;
 811
 812         ServerInstance->Log(DEBUG,"Using builtin NAMES list generation");
 813
 814         dlen = curlen = snprintf(list,MAXBUF,"353 %s = %s :", user->nick, this->name);
 815
 816         int numusers = 0;
 817         char* ptr = list + dlen;
 818
 819         CUList *ulist= this->GetUsers();
 820
 821         /* Improvement by Brain - this doesnt change in value, so why was it inside
 822          * the loop?
 823          */
 824         bool has_user = this->HasUser(user);
 825
 826         for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
 827         {
 828                 if ((!has_user) && (i->second->modes[UM_INVISIBLE]))
 829                 {
 830                         /*
 831                          * user is +i, and source not on the channel, does not show
 832                          * nick in NAMES list
 833                          */
 834                         continue;
 835                 }
 836
 837                 size_t ptrlen = snprintf(ptr, MAXBUF, "%s%s ", this->GetPrefixChar(i->second), i->second->nick);
 838
 839                 curlen += ptrlen;
 840                 ptr += ptrlen;
 841
 842                 numusers++;
 843
 844                 if (curlen > (480-NICKMAX))
 845                 {
 846                         /* list overflowed into multiple numerics */
 847                         user->WriteServ(std::string(list));
 848
 849                         /* reset our lengths */
 850                         dlen = curlen = snprintf(list,MAXBUF,"353 %s = %s :", user->nick, this->name);
 851                         ptr = list + dlen;
 852
 853                         ptrlen = 0;
 854                         numusers = 0;
 855                 }
 856         }
 857
 858         /* if whats left in the list isnt empty, send it */
 859         if (numusers)
 860         {
 861                 user->WriteServ(std::string(list));
 862         }
 863
 864         user->WriteServ("366 %s %s :End of /NAMES list.", user->nick, this->name);
 865 }
 866
 867 long chanrec::GetMaxBans()
 868 {
 869         std::string x;
 870         for (std::map<std::string,int>::iterator n = ServerInstance->Config->maxbans.begin(); n != ServerInstance->Config->maxbans.end(); n++)
 871         {
 872                 x = n->first;
 873                 if (match(this->name,x.c_str()))
 874                 {
 875                         return n->second;
 876                 }
 877         }
 878         return 64;
 879 }
 880
 881
 882 /* returns the status character for a given user on a channel, e.g. @ for op,
 883  * % for halfop etc. If the user has several modes set, the highest mode
 884  * the user has must be returned.
 885  */
 886 const char* chanrec::GetPrefixChar(userrec *user)
 887 {
 888         static char px[2];
 889         unsigned int mx = 0;
 890
 891         *px = 0;
 892         *(px+1) = 0;
 893
 894         prefixlist::iterator n = prefixes.find(user);
 895         if (n != prefixes.end())
 896         {
 897                 for (std::vector<prefixtype>::iterator x = n->second.begin(); x != n->second.end(); x++)
 898                 {
 899                         if (x->second > mx)
 900                         {
 901                                 *px = x->first;
 902                                 mx  = x->second;
 903                         }
 904                 }
 905         }
 906
 907         return px;
 908 }
 909
 910 const char* chanrec::GetAllPrefixChars(userrec* user)
 911 {
 912         static char prefix[MAXBUF];
 913         int ctr = 0;
 914         *prefix = 0;
 915
 916         prefixlist::iterator n = prefixes.find(user);
 917         if (n != prefixes.end())
 918         {
 919                 for (std::vector<prefixtype>::iterator x = n->second.begin(); x != n->second.end(); x++)
 920                 {
 921                         prefix[ctr++] = x->first;
 922                 }
 923         }
 924
 925         prefix[ctr] = 0;
 926
 927         return prefix;
 928 }
 929
 930 unsigned int chanrec::GetPrefixValue(userrec* user)
 931 {
 932         unsigned int mx = 0;
 933
 934         prefixlist::iterator n = prefixes.find(user);
 935         if (n != prefixes.end())
 936         {
 937                 for (std::vector<prefixtype>::iterator x = n->second.begin(); x != n->second.end(); x++)
 938                 {
 939                         if (x->second > mx)
 940                                 mx  = x->second;
 941                 }
 942         }
 943
 944         return mx;
 945 }
 946
 947
 948 int chanrec::GetStatusFlags(userrec *user)
 949 {
 950         for (std::vector<ucrec*>::const_iterator i = user->chans.begin(); i != user->chans.end(); i++)
 951         {
 952                 if ((*i)->channel == this)
 953                 {
 954                         return (*i)->uc_modes;
 955                 }
 956         }
 957         return 0;
 958 }
 959
 960
 961 int chanrec::GetStatus(userrec *user)
 962 {
 963         if (ServerInstance->ULine(user->server))
 964                 return STATUS_OP;
 965
 966         for (std::vector<ucrec*>::const_iterator i = user->chans.begin(); i != user->chans.end(); i++)
 967         {
 968                 if ((*i)->channel == this)
 969                 {
 970                         if (((*i)->uc_modes & UCMODE_OP) > 0)
 971                         {
 972                                 return STATUS_OP;
 973                         }
 974                         if (((*i)->uc_modes & UCMODE_HOP) > 0)
 975                         {
 976                                 return STATUS_HOP;
 977                         }
 978                         if (((*i)->uc_modes & UCMODE_VOICE) > 0)
 979                         {
 980                                 return STATUS_VOICE;
 981                         }
 982                         return STATUS_NORMAL;
 983                 }
 984         }
 985         return STATUS_NORMAL;
 986 }
 987
 988 /*bool ModeParser::PrefixComparison(const prefixtype one, const prefixtype two)
 989 {
 990         return one.second > two.second;
 991 }*/
 992
 993 void chanrec::SetPrefix(userrec* user, char prefix, unsigned int prefix_value, bool adding)
 994 {
 995         prefixlist::iterator n = prefixes.find(user);
 996         prefixtype pfx = std::make_pair(prefix,prefix_value);
 997         if (adding)
 998         {
 999                 if (n != prefixes.end())
1000                 {
1001                         if (std::find(n->second.begin(), n->second.end(), pfx) == n->second.end())
1002                         {
1003                                 n->second.push_back(pfx);
1004                                 std::sort(n->second.begin(), n->second.end(), ModeParser::PrefixComparison);
1005                         }
1006                 }
1007                 else
1008                 {
1009                         pfxcontainer one;
1010                         one.push_back(pfx);
1011                         prefixes.insert(std::make_pair<userrec*,pfxcontainer>(user, one));
1012                 }
1013         }
1014         else
1015         {
1016                 if (n != prefixes.end())
1017                 {
1018                         pfxcontainer::iterator x = std::find(n->second.begin(), n->second.end(), pfx);
1019                         if (x != n->second.end())
1020                                 n->second.erase(x);
1021                 }
1022         }
1023 }
1024
1025 void chanrec::RemoveAllPrefixes(userrec* user)
1026 {
1027         prefixlist::iterator n = prefixes.find(user);
1028         if (n != prefixes.end())
1029                 prefixes.erase(n);
1030 }
1031