src/channels.cpp

   1 /*   +------------------------------------+
   2  *   | Inspire Internet Relay Chat Daemon |
   3  *   +------------------------------------+
   4  *
   5  *  InspIRCd is copyright (C) 2002-2006 ChatSpike-Dev.
   6  *   E-mail:
   7  *        <brain@chatspike.net>
   8  *        <Craig@chatspike.net>
   9  *
  10  * Written by Craig Edwards, Craig McLure, and others.
  11  * This program is free but copyrighted software; see
  12  *      the file COPYING for details.
  13  *
  14  * ---------------------------------------------------
  15  */
  16
  17 using namespace std;
  18
  19 #include <string>
  20 #include <map>
  21 #include <sstream>
  22 #include <vector>
  23 #include <deque>
  24 #include <stdarg.h>
  25 #include "configreader.h"
  26 #include "inspircd.h"
  27 #include "hash_map.h"
  28 #include "users.h"
  29 #include "ctables.h"
  30 #include "globals.h"
  31 #include "modules.h"
  32 #include "dynamic.h"
  33 #include "commands.h"
  34 #include "wildcard.h"
  35 #include "mode.h"
  36 #include "xline.h"
  37 #include "inspstring.h"
  38
  39 #include "typedefs.h"
  40
  41 chanrec::chanrec(InspIRCd* Instance) : ServerInstance(Instance)
  42 {
  43         *name = *topic = *setby = *key = 0;
  44         created = topicset = limit = 0;
  45         internal_userlist.clear();
  46         memset(&modes,0,64);
  47 }
  48
  49 void chanrec::SetMode(char mode,bool mode_on)
  50 {
  51         modes[mode-65] = mode_on;
  52         if (!mode_on)
  53                 this->SetModeParam(mode,"",false);
  54 }
  55
  56
  57 void chanrec::SetModeParam(char mode,const char* parameter,bool mode_on)
  58 {
  59         ServerInstance->Log(DEBUG,"SetModeParam called");
  60
  61         CustomModeList::iterator n = custom_mode_params.find(mode);
  62
  63         if (mode_on)
  64         {
  65                 if (n == custom_mode_params.end())
  66                 {
  67                         custom_mode_params[mode] = strdup(parameter);
  68                         ServerInstance->Log(DEBUG,"Custom mode parameter %c %s added",mode,parameter);
  69                 }
  70                 else
  71                 {
  72                         ServerInstance->Log(DEBUG, "Tried to set custom mode parameter for %c '%s' when it was already '%s'", mode, parameter, n->second);
  73                 }
  74         }
  75         else
  76         {
  77                 if (n != custom_mode_params.end())
  78                 {
  79                         free(n->second);
  80                         custom_mode_params.erase(n);
  81                 }
  82         }
  83 }
  84
  85 bool chanrec::IsModeSet(char mode)
  86 {
  87         return modes[mode-65];
  88 }
  89
  90 std::string chanrec::GetModeParameter(char mode)
  91 {
  92         if (mode == 'k')
  93         {
  94                 return this->key;
  95         }
  96         else if (mode == 'l')
  97         {
  98                 return ConvToStr(this->limit);
  99         }
 100         else
 101         {
 102                 CustomModeList::iterator n = custom_mode_params.find(mode);
 103                 if (n != custom_mode_params.end())
 104                 {
 105                         return n->second;
 106                 }
 107                 return "";
 108         }
 109 }
 110
 111 long chanrec::GetUserCounter()
 112 {
 113         return (this->internal_userlist.size());
 114 }
 115
 116 void chanrec::AddUser(userrec* user)
 117 {
 118         internal_userlist[user] = user;
 119 }
 120
 121 unsigned long chanrec::DelUser(userrec* user)
 122 {
 123         CUListIter a = internal_userlist.find(user);
 124
 125         if (a != internal_userlist.end())
 126         {
 127                 internal_userlist.erase(a);
 128                 /* And tidy any others... */
 129                 DelOppedUser(user);
 130                 DelHalfoppedUser(user);
 131                 DelVoicedUser(user);
 132         }
 133
 134         return internal_userlist.size();
 135 }
 136
 137 bool chanrec::HasUser(userrec* user)
 138 {
 139         return (internal_userlist.find(user) != internal_userlist.end());
 140 }
 141
 142 void chanrec::AddOppedUser(userrec* user)
 143 {
 144         internal_op_userlist[user] = user;
 145 }
 146
 147 void chanrec::DelOppedUser(userrec* user)
 148 {
 149         CUListIter a = internal_op_userlist.find(user);
 150         if (a != internal_op_userlist.end())
 151         {
 152                 internal_op_userlist.erase(a);
 153                 return;
 154         }
 155 }
 156
 157 void chanrec::AddHalfoppedUser(userrec* user)
 158 {
 159         internal_halfop_userlist[user] = user;
 160 }
 161
 162 void chanrec::DelHalfoppedUser(userrec* user)
 163 {
 164         CUListIter a = internal_halfop_userlist.find(user);
 165
 166         if (a != internal_halfop_userlist.end())
 167         {
 168                 internal_halfop_userlist.erase(a);
 169         }
 170 }
 171
 172 void chanrec::AddVoicedUser(userrec* user)
 173 {
 174         internal_voice_userlist[user] = user;
 175 }
 176
 177 void chanrec::DelVoicedUser(userrec* user)
 178 {
 179         CUListIter a = internal_voice_userlist.find(user);
 180
 181         if (a != internal_voice_userlist.end())
 182         {
 183                 internal_voice_userlist.erase(a);
 184         }
 185 }
 186
 187 CUList* chanrec::GetUsers()
 188 {
 189         return &internal_userlist;
 190 }
 191
 192 CUList* chanrec::GetOppedUsers()
 193 {
 194         return &internal_op_userlist;
 195 }
 196
 197 CUList* chanrec::GetHalfoppedUsers()
 198 {
 199         return &internal_halfop_userlist;
 200 }
 201
 202 CUList* chanrec::GetVoicedUsers()
 203 {
 204         return &internal_voice_userlist;
 205 }
 206
 207 /*
 208  * add a channel to a user, creating the record for it if needed and linking
 209  * it to the user record
 210  */
 211 chanrec* chanrec::JoinUser(InspIRCd* Instance, userrec *user, const char* cn, bool override, const char* key)
 212 {
 213         if (!user || !cn)
 214                 return NULL;
 215
 216         int created = 0;
 217         char cname[MAXBUF];
 218         int MOD_RESULT = 0;
 219         strlcpy(cname,cn,CHANMAX);
 220
 221         chanrec* Ptr = Instance->FindChan(cname);
 222
 223         if (!Ptr)
 224         {
 225                 if (IS_LOCAL(user))
 226                 {
 227                         MOD_RESULT = 0;
 228                         FOREACH_RESULT_I(Instance,I_OnUserPreJoin,OnUserPreJoin(user,NULL,cname));
 229                         if (MOD_RESULT == 1)
 230                                 return NULL;
 231                 }
 232
 233                 /* create a new one */
 234                 Ptr = new chanrec(Instance);
 235                 Instance->chanlist[cname] = Ptr;
 236
 237                 strlcpy(Ptr->name, cname,CHANMAX);
 238                 Ptr->modes[CM_TOPICLOCK] = Ptr->modes[CM_NOEXTERNAL] = 1;
 239                 Ptr->created = Instance->Time();
 240                 *Ptr->topic = 0;
 241                 strlcpy(Ptr->setby, user->nick,NICKMAX-1);
 242                 Ptr->topicset = 0;
 243                 Instance->Log(DEBUG,"chanrec::JoinUser(): created: %s",cname);
 244                 /*
 245                  * set created to 2 to indicate user
 246                  * is the first in the channel
 247                  * and should be given ops
 248                  */
 249                 created = 2;
 250         }
 251         else
 252         {
 253                 /* Already on the channel */
 254                 if (Ptr->HasUser(user))
 255                         return NULL;
 256
 257                 /*
 258                  * remote users are allowed us to bypass channel modes
 259                  * and bans (used by servers)
 260                  */
 261                 if (IS_LOCAL(user)) /* was a check on fd > -1 */
 262                 {
 263                         MOD_RESULT = 0;
 264                         FOREACH_RESULT_I(Instance,I_OnUserPreJoin,OnUserPreJoin(user,Ptr,cname));
 265                         if (MOD_RESULT == 1)
 266                         {
 267                                 return NULL;
 268                         }
 269                         else if (MOD_RESULT == 0)
 270                         {
 271                                 if (*Ptr->key)
 272                                 {
 273                                         MOD_RESULT = 0;
 274                                         FOREACH_RESULT_I(Instance,I_OnCheckKey,OnCheckKey(user, Ptr, key ? key : ""));
 275                                         if (!MOD_RESULT)
 276                                         {
 277                                                 if (!key)
 278                                                 {
 279                                                         Instance->Log(DEBUG,"chanrec::JoinUser(): no key given in JOIN");
 280                                                         user->WriteServ("475 %s %s :Cannot join channel (Requires key)",user->nick, Ptr->name);
 281                                                         return NULL;
 282                                                 }
 283                                                 else
 284                                                 {
 285                                                         if (strcmp(key,Ptr->key))
 286                                                         {
 287                                                                 Instance->Log(DEBUG,"chanrec::JoinUser(): bad key given in JOIN");
 288                                                                 user->WriteServ("475 %s %s :Cannot join channel (Incorrect key)",user->nick, Ptr->name);
 289                                                                 return NULL;
 290                                                         }
 291                                                 }
 292                                         }
 293                                 }
 294                                 if (Ptr->modes[CM_INVITEONLY])
 295                                 {
 296                                         MOD_RESULT = 0;
 297                                         irc::string xname(Ptr->name);
 298                                         FOREACH_RESULT_I(Instance,I_OnCheckInvite,OnCheckInvite(user, Ptr));
 299                                         if (!MOD_RESULT)
 300                                         {
 301                                                 if (user->IsInvited(xname))
 302                                                 {
 303                                                         /* user was invited to channel */
 304                                                         /* there may be an optional channel NOTICE here */
 305                                                 }
 306                                                 else
 307                                                 {
 308                                                         user->WriteServ("473 %s %s :Cannot join channel (Invite only)",user->nick, Ptr->name);
 309                                                         return NULL;
 310                                                 }
 311                                         }
 312                                         user->RemoveInvite(xname);
 313                                 }
 314                                 if (Ptr->limit)
 315                                 {
 316                                         MOD_RESULT = 0;
 317                                         FOREACH_RESULT_I(Instance,I_OnCheckLimit,OnCheckLimit(user, Ptr));
 318                                         if (!MOD_RESULT)
 319                                         {
 320                                                 if (Ptr->GetUserCounter() >= Ptr->limit)
 321                                                 {
 322                                                         user->WriteServ("471 %s %s :Cannot join channel (Channel is full)",user->nick, Ptr->name);
 323                                                         return NULL;
 324                                                 }
 325                                         }
 326                                 }
 327                                 if (Ptr->bans.size())
 328                                 {
 329                                         MOD_RESULT = 0;
 330                                         FOREACH_RESULT_I(Instance,I_OnCheckBan,OnCheckBan(user, Ptr));
 331                                         char mask[MAXBUF];
 332                                         sprintf(mask,"%s!%s@%s",user->nick, user->ident, user->GetIPString());
 333                                         if (!MOD_RESULT)
 334                                         {
 335                                                 for (BanList::iterator i = Ptr->bans.begin(); i != Ptr->bans.end(); i++)
 336                                                 {
 337                                                         /* This allows CIDR ban matching
 338                                                          *
 339                                                          *        Full masked host                      Full unmasked host                   IP with/without CIDR
 340                                                          */
 341                                                         if ((match(user->GetFullHost(),i->data)) || (match(user->GetFullRealHost(),i->data)) || (match(mask, i->data, true)))
 342                                                         {
 343                                                                 user->WriteServ("474 %s %s :Cannot join channel (You're banned)",user->nick, Ptr->name);
 344                                                                 return NULL;
 345                                                         }
 346                                                 }
 347                                         }
 348                                 }
 349                         }
 350                 }
 351                 else
 352                 {
 353                         Instance->Log(DEBUG,"chanrec::JoinUser(): Overridden checks");
 354                 }
 355                 created = 1;
 356         }
 357
 358         for (UserChanList::const_iterator index = user->chans.begin(); index != user->chans.end(); index++)
 359         {
 360                 if ((*index)->channel == NULL)
 361                 {
 362                         return chanrec::ForceChan(Instance, Ptr, *index, user, created);
 363                 }
 364         }
 365
 366         /*
 367          * XXX: If the user is an oper here, we can just extend their user->chans vector by one
 368          * and put the channel in here. Same for remote users which are not bound by
 369          * the channel limits. Otherwise, nope, youre boned.
 370          */
 371         if (!IS_LOCAL(user)) /* was a check on fd < 0 */
 372         {
 373                 ucrec* a = new ucrec();
 374                 chanrec* c = chanrec::ForceChan(Instance, Ptr,a,user,created);
 375                 user->chans.push_back(a);
 376                 return c;
 377         }
 378         else if (*user->oper)
 379         {
 380                 /* Oper allows extension up to the OPERMAXCHANS value */
 381                 if (user->chans.size() < OPERMAXCHANS)
 382                 {
 383                         ucrec* a = new ucrec();
 384                         chanrec* c = chanrec::ForceChan(Instance, Ptr,a,user,created);
 385                         user->chans.push_back(a);
 386                         return c;
 387                 }
 388         }
 389
 390         user->WriteServ("405 %s %s :You are on too many channels",user->nick, cname);
 391
 392         if (created == 2)
 393         {
 394                 Instance->Log(DEBUG,"BLAMMO, Whacking channel.");
 395                 /* Things went seriously pear shaped, so take this away. bwahaha. */
 396                 chan_hash::iterator n = Instance->chanlist.find(cname);
 397                 if (n != Instance->chanlist.end())
 398                 {
 399                         Ptr->DelUser(user);
 400                         DELETE(Ptr);
 401                         Instance->chanlist.erase(n);
 402                         for (unsigned int index =0; index < user->chans.size(); index++)
 403                         {
 404                                 if (user->chans[index]->channel == Ptr)
 405                                 {
 406                                         user->chans[index]->channel = NULL;
 407                                         user->chans[index]->uc_modes = 0;
 408                                 }
 409                         }
 410                 }
 411         }
 412         else
 413         {
 414                 for (unsigned int index =0; index < user->chans.size(); index++)
 415                 {
 416                         if (user->chans[index]->channel == Ptr)
 417                         {
 418                                 user->chans[index]->channel = NULL;
 419                                 user->chans[index]->uc_modes = 0;
 420                         }
 421                 }
 422         }
 423         return NULL;
 424 }
 425
 426 chanrec* chanrec::ForceChan(InspIRCd* Instance, chanrec* Ptr,ucrec *a,userrec* user, int created)
 427 {
 428         if (created == 2)
 429         {
 430                 /* first user in is given ops */
 431                 a->uc_modes = UCMODE_OP;
 432                 Ptr->AddOppedUser(user);
 433                 Ptr->SetPrefix(user, '@', OP_VALUE, true);
 434         }
 435         else
 436         {
 437                 a->uc_modes = 0;
 438         }
 439
 440         a->channel = Ptr;
 441         Ptr->AddUser(user);
 442         Ptr->WriteChannel(user,"JOIN :%s",Ptr->name);
 443
 444         /* Major improvement by Brain - we dont need to be calculating all this pointlessly for remote users */
 445         if (IS_LOCAL(user))
 446         {
 447                 if (Ptr->topicset)
 448                 {
 449                         user->WriteServ("332 %s %s :%s", user->nick, Ptr->name, Ptr->topic);
 450                         user->WriteServ("333 %s %s %s %lu", user->nick, Ptr->name, Ptr->setby, (unsigned long)Ptr->topicset);
 451                 }
 452                 Ptr->UserList(user);
 453                 user->WriteServ("366 %s %s :End of /NAMES list.", user->nick, Ptr->name);
 454         }
 455         FOREACH_MOD_I(Instance,I_OnUserJoin,OnUserJoin(user,Ptr));
 456         return Ptr;
 457 }
 458
 459 /* chanrec::PartUser
 460  * remove a channel from a users record, and remove the record from the hash
 461  * if the channel has become empty
 462  */
 463 long chanrec::PartUser(userrec *user, const char* reason)
 464 {
 465         if (!user)
 466                 return this->GetUserCounter();
 467
 468         for (unsigned int i =0; i < user->chans.size(); i++)
 469         {
 470                 /* zap it from the channel list of the user */
 471                 if (user->chans[i]->channel == this)
 472                 {
 473                         if (reason)
 474                         {
 475                                 FOREACH_MOD(I_OnUserPart,OnUserPart(user, this, reason));
 476                                 this->WriteChannel(user, "PART %s :%s", this->name, reason);
 477                         }
 478                         else
 479                         {
 480                                 FOREACH_MOD(I_OnUserPart,OnUserPart(user, this, ""));
 481                                 this->WriteChannel(user, "PART :%s", this->name);
 482                         }
 483                         user->chans[i]->uc_modes = 0;
 484                         user->chans[i]->channel = NULL;
 485                         this->RemoveAllPrefixes(user);
 486                         break;
 487                 }
 488         }
 489
 490         if (!this->DelUser(user)) /* if there are no users left on the channel... */
 491         {
 492                 chan_hash::iterator iter = ServerInstance->chanlist.find(this->name);
 493                 /* kill the record */
 494                 if (iter != ServerInstance->chanlist.end())
 495                 {
 496                         ServerInstance->Log(DEBUG,"del_channel: destroyed: %s", this->name);
 497                         FOREACH_MOD(I_OnChannelDelete,OnChannelDelete(this));
 498                         ServerInstance->chanlist.erase(iter);
 499                 }
 500                 return 0;
 501         }
 502
 503         return this->GetUserCounter();
 504 }
 505
 506 long chanrec::ServerKickUser(userrec* user, const char* reason, bool triggerevents)
 507 {
 508         if (!user || !reason)
 509                 return this->GetUserCounter();
 510
 511         if (IS_LOCAL(user))
 512         {
 513                 if (!this->HasUser(user))
 514                 {
 515                         /* Not on channel */
 516                         return this->GetUserCounter();
 517                 }
 518         }
 519
 520         if (triggerevents)
 521         {
 522                 FOREACH_MOD(I_OnUserKick,OnUserKick(NULL,user,this,reason));
 523         }
 524
 525         for (unsigned int i =0; i < user->chans.size(); i++)
 526         {
 527                 if (user->chans[i]->channel == this)
 528                 {
 529                         this->WriteChannelWithServ(ServerInstance->Config->ServerName, "KICK %s %s :%s", this->name, user->nick, reason);
 530                         user->chans[i]->uc_modes = 0;
 531                         user->chans[i]->channel = NULL;
 532                         this->RemoveAllPrefixes(user);
 533                         break;
 534                 }
 535         }
 536
 537         if (!this->DelUser(user))
 538         {
 539                 chan_hash::iterator iter = ServerInstance->chanlist.find(this->name);
 540                 /* kill the record */
 541                 if (iter != ServerInstance->chanlist.end())
 542                 {
 543                         FOREACH_MOD(I_OnChannelDelete,OnChannelDelete(this));
 544                         ServerInstance->chanlist.erase(iter);
 545                 }
 546                 return 0;
 547         }
 548
 549         return this->GetUserCounter();
 550 }
 551
 552 long chanrec::KickUser(userrec *src, userrec *user, const char* reason)
 553 {
 554         if (!src || !user || !reason)
 555                 return this->GetUserCounter();
 556
 557         if (IS_LOCAL(src))
 558         {
 559                 if (!this->HasUser(user))
 560                 {
 561                         src->WriteServ("441 %s %s %s :They are not on that channel",src->nick, user->nick, this->name);
 562                         return this->GetUserCounter();
 563                 }
 564                 if ((ServerInstance->ULine(user->server)) && (!ServerInstance->ULine(src->server)))
 565                 {
 566                         src->WriteServ("482 %s %s :Only a u-line may kick a u-line from a channel.",src->nick, this->name);
 567                         return this->GetUserCounter();
 568                 }
 569                 int MOD_RESULT = 0;
 570
 571                 if (!ServerInstance->ULine(src->server))
 572                 {
 573                         MOD_RESULT = 0;
 574                         FOREACH_RESULT(I_OnUserPreKick,OnUserPreKick(src,user,this,reason));
 575                         if (MOD_RESULT == 1)
 576                                 return this->GetUserCounter();
 577                 }
 578                 /* Set to -1 by OnUserPreKick if explicit allow was set */
 579                 if (MOD_RESULT != -1)
 580                 {
 581                         FOREACH_RESULT(I_OnAccessCheck,OnAccessCheck(src,user,this,AC_KICK));
 582                         if ((MOD_RESULT == ACR_DENY) && (!ServerInstance->ULine(src->server)))
 583                                 return this->GetUserCounter();
 584
 585                         if ((MOD_RESULT == ACR_DEFAULT) || (!ServerInstance->ULine(src->server)))
 586                         {
 587                                 int them = this->GetStatus(src);
 588                                 int us = this->GetStatus(user);
 589                                 if ((them < STATUS_HOP) || (them < us))
 590                                 {
 591                                         if (them == STATUS_HOP)
 592                                         {
 593                                                 src->WriteServ("482 %s %s :You must be a channel operator",src->nick, this->name);
 594                                         }
 595                                         else
 596                                         {
 597                                                 src->WriteServ("482 %s %s :You must be at least a half-operator",src->nick, this->name);
 598                                         }
 599                                         return this->GetUserCounter();
 600                                 }
 601                         }
 602                 }
 603         }
 604
 605         FOREACH_MOD(I_OnUserKick,OnUserKick(src,user,this,reason));
 606
 607         for (UserChanList::const_iterator i = user->chans.begin(); i != user->chans.end(); i++)
 608         {
 609                 /* zap it from the channel list of the user */
 610                 if ((*i)->channel == this)
 611                 {
 612                         this->WriteChannel(src, "KICK %s %s :%s", this->name, user->nick, reason);
 613                         (*i)->uc_modes = 0;
 614                         (*i)->channel = NULL;
 615                         this->RemoveAllPrefixes(user);
 616                         break;
 617                 }
 618         }
 619
 620         if (!this->DelUser(user))
 621         /* if there are no users left on the channel */
 622         {
 623                 chan_hash::iterator iter = ServerInstance->chanlist.find(this->name);
 624
 625                 /* kill the record */
 626                 if (iter != ServerInstance->chanlist.end())
 627                 {
 628                         FOREACH_MOD(I_OnChannelDelete,OnChannelDelete(this));
 629                         ServerInstance->chanlist.erase(iter);
 630                 }
 631                 return 0;
 632         }
 633
 634         return this->GetUserCounter();
 635 }
 636
 637 void chanrec::WriteChannel(userrec* user, char* text, ...)
 638 {
 639         char textbuffer[MAXBUF];
 640         va_list argsPtr;
 641
 642         if (!user || !text)
 643                 return;
 644
 645         va_start(argsPtr, text);
 646         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 647         va_end(argsPtr);
 648
 649         this->WriteChannel(user, std::string(textbuffer));
 650 }
 651
 652 void chanrec::WriteChannel(userrec* user, const std::string &text)
 653 {
 654         CUList *ulist = this->GetUsers();
 655
 656         if (!user)
 657                 return;
 658
 659         for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
 660         {
 661                 if (IS_LOCAL(i->second))
 662                         user->WriteTo(i->second,text);
 663         }
 664 }
 665
 666 void chanrec::WriteChannelWithServ(const char* ServName, const char* text, ...)
 667 {
 668         char textbuffer[MAXBUF];
 669         va_list argsPtr;
 670
 671         if (!text)
 672                 return;
 673
 674         va_start(argsPtr, text);
 675         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 676         va_end(argsPtr);
 677
 678         this->WriteChannelWithServ(ServName, std::string(textbuffer));
 679 }
 680
 681 void chanrec::WriteChannelWithServ(const char* ServName, const std::string &text)
 682 {
 683         CUList *ulist = this->GetUsers();
 684
 685         for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
 686         {
 687                 if (IS_LOCAL(i->second))
 688                         i->second->WriteServ(text);
 689         }
 690 }
 691
 692 /* write formatted text from a source user to all users on a channel except
 693  * for the sender (for privmsg etc) */
 694 void chanrec::WriteAllExceptSender(userrec* user, char status, char* text, ...)
 695 {
 696         char textbuffer[MAXBUF];
 697         va_list argsPtr;
 698
 699         if (!user || !text)
 700                 return;
 701
 702         va_start(argsPtr, text);
 703         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 704         va_end(argsPtr);
 705
 706         this->WriteAllExceptSender(user, status, std::string(textbuffer));
 707 }
 708
 709 void chanrec::WriteAllExceptSender(userrec* user, char status, const std::string& text)
 710 {
 711         CUList *ulist;
 712
 713         if (!user)
 714                 return;
 715
 716         switch (status)
 717         {
 718                 case '@':
 719                         ulist = this->GetOppedUsers();
 720                         break;
 721                 case '%':
 722                         ulist = this->GetHalfoppedUsers();
 723                         break;
 724                 case '+':
 725                         ulist = this->GetVoicedUsers();
 726                         break;
 727                 default:
 728                         ulist = this->GetUsers();
 729                         break;
 730         }
 731
 732         for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
 733         {
 734                 if ((IS_LOCAL(i->second)) && (user != i->second))
 735                         i->second->WriteFrom(user,text);
 736         }
 737 }
 738
 739 /*
 740  * return a count of the users on a specific channel accounting for
 741  * invisible users who won't increase the count. e.g. for /LIST
 742  */
 743 int chanrec::CountInvisible()
 744 {
 745         int count = 0;
 746         CUList *ulist= this->GetUsers();
 747         for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
 748         {
 749                 if (!(i->second->modes[UM_INVISIBLE]))
 750                         count++;
 751         }
 752
 753         return count;
 754 }
 755
 756 char* chanrec::ChanModes(bool showkey)
 757 {
 758         static char scratch[MAXBUF];
 759         static char sparam[MAXBUF];
 760         char* offset = scratch;
 761         std::string extparam = "";
 762
 763         *scratch = '\0';
 764         *sparam = '\0';
 765
 766         /* This was still iterating up to 190, chanrec::custom_modes is only 64 elements -- Om */
 767         for(int n = 0; n < 64; n++)
 768         {
 769                 if(this->modes[n])
 770                 {
 771                         *offset++ = n + 65;
 772                         extparam = "";
 773                         switch (n)
 774                         {
 775                                 case CM_KEY:
 776                                         extparam = (showkey ? this->key : "<key>");
 777                                 break;
 778                                 case CM_LIMIT:
 779                                         extparam = ConvToStr(this->limit);
 780                                 break;
 781                                 case CM_NOEXTERNAL:
 782                                 case CM_TOPICLOCK:
 783                                 case CM_INVITEONLY:
 784                                 case CM_MODERATED:
 785                                 case CM_SECRET:
 786                                 case CM_PRIVATE:
 787                                         /* We know these have no parameters */
 788                                 break;
 789                                 default:
 790                                         extparam = this->GetModeParameter(n + 65);
 791                                 break;
 792                         }
 793                         if (extparam != "")
 794                         {
 795                                 charlcat(sparam,' ',MAXBUF);
 796                                 strlcat(sparam,extparam.c_str(),MAXBUF);
 797                         }
 798                 }
 799         }
 800
 801         /* Null terminate scratch */
 802         *offset = '\0';
 803         strlcat(scratch,sparam,MAXBUF);
 804         return scratch;
 805 }
 806
 807 /* compile a userlist of a channel into a string, each nick seperated by
 808  * spaces and op, voice etc status shown as @ and +, and send it to 'user'
 809  */
 810 void chanrec::UserList(userrec *user)
 811 {
 812         char list[MAXBUF];
 813         size_t dlen, curlen;
 814
 815         dlen = curlen = snprintf(list,MAXBUF,"353 %s = %s :", user->nick, this->name);
 816
 817         int numusers = 0;
 818         char* ptr = list + dlen;
 819
 820         CUList *ulist= this->GetUsers();
 821
 822         /* Improvement by Brain - this doesnt change in value, so why was it inside
 823          * the loop?
 824          */
 825         bool has_user = this->HasUser(user);
 826
 827         for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
 828         {
 829                 if ((!has_user) && (i->second->modes[UM_INVISIBLE]))
 830                 {
 831                         /*
 832                          * user is +i, and source not on the channel, does not show
 833                          * nick in NAMES list
 834                          */
 835                         continue;
 836                 }
 837
 838                 size_t ptrlen = snprintf(ptr, MAXBUF, "%s%s ", this->GetStatusChar(i->second), i->second->nick);
 839
 840                 curlen += ptrlen;
 841                 ptr += ptrlen;
 842
 843                 numusers++;
 844
 845                 if (curlen > (480-NICKMAX))
 846                 {
 847                         /* list overflowed into multiple numerics */
 848                         user->WriteServ(list);
 849
 850                         /* reset our lengths */
 851                         dlen = curlen = snprintf(list,MAXBUF,"353 %s = %s :", user->nick, this->name);
 852                         ptr = list + dlen;
 853
 854                         ptrlen = 0;
 855                         numusers = 0;
 856                 }
 857         }
 858
 859         /* if whats left in the list isnt empty, send it */
 860         if (numusers)
 861         {
 862                 user->WriteServ(list);
 863         }
 864 }
 865
 866 long chanrec::GetMaxBans()
 867 {
 868         std::string x;
 869         for (std::map<std::string,int>::iterator n = ServerInstance->Config->maxbans.begin(); n != ServerInstance->Config->maxbans.end(); n++)
 870         {
 871                 x = n->first;
 872                 if (match(this->name,x.c_str()))
 873                 {
 874                         return n->second;
 875                 }
 876         }
 877         return 64;
 878 }
 879
 880
 881 /* returns the status character for a given user on a channel, e.g. @ for op,
 882  * % for halfop etc. If the user has several modes set, the highest mode
 883  * the user has must be returned. */
 884
 885 const char* chanrec::GetStatusChar(userrec *user)
 886 {
 887         static char px[2];
 888         unsigned int mx = 0;
 889
 890         *px = 0;
 891         *(px+1) = 0;
 892
 893         prefixlist::iterator n = prefixes.find(user);
 894         if (n != prefixes.end())
 895         {
 896                 for (std::vector<prefixtype>::iterator x = n->second.begin(); x != n->second.end(); x++)
 897                 {
 898                         if (x->second > mx)
 899                         {
 900                                 *px = x->first;
 901                                 mx  = x->second;
 902                         }
 903                 }
 904         }
 905
 906         return px;
 907 }
 908
 909
 910 int chanrec::GetStatusFlags(userrec *user)
 911 {
 912         for (std::vector<ucrec*>::const_iterator i = user->chans.begin(); i != user->chans.end(); i++)
 913         {
 914                 if ((*i)->channel == this)
 915                 {
 916                         return (*i)->uc_modes;
 917                 }
 918         }
 919         return 0;
 920 }
 921
 922
 923
 924 int chanrec::GetStatus(userrec *user)
 925 {
 926         if (ServerInstance->ULine(user->server))
 927                 return STATUS_OP;
 928
 929         for (std::vector<ucrec*>::const_iterator i = user->chans.begin(); i != user->chans.end(); i++)
 930         {
 931                 if ((*i)->channel == this)
 932                 {
 933                         if (((*i)->uc_modes & UCMODE_OP) > 0)
 934                         {
 935                                 return STATUS_OP;
 936                         }
 937                         if (((*i)->uc_modes & UCMODE_HOP) > 0)
 938                         {
 939                                 return STATUS_HOP;
 940                         }
 941                         if (((*i)->uc_modes & UCMODE_VOICE) > 0)
 942                         {
 943                                 return STATUS_VOICE;
 944                         }
 945                         return STATUS_NORMAL;
 946                 }
 947         }
 948         return STATUS_NORMAL;
 949 }
 950
 951 void chanrec::SetPrefix(userrec* user, char prefix, unsigned int prefix_value, bool adding)
 952 {
 953         prefixlist::iterator n = prefixes.find(user);
 954         prefixtype pfx = std::make_pair(prefix,prefix_value);
 955         if (adding)
 956         {
 957                 if (n != prefixes.end())
 958                 {
 959                         if (std::find(n->second.begin(), n->second.end(), pfx) == n->second.end())
 960                         {
 961                                 n->second.push_back(pfx);
 962                         }
 963                 }
 964                 else
 965                 {
 966                         pfxcontainer one;
 967                         one.push_back(pfx);
 968                         prefixes.insert(std::make_pair<userrec*,pfxcontainer>(user, one));
 969                 }
 970         }
 971         else
 972         {
 973                 if (n != prefixes.end())
 974                 {
 975                         pfxcontainer::iterator x = std::find(n->second.begin(), n->second.end(), pfx);
 976                         if (x != n->second.end())
 977                                 n->second.erase(x);
 978                 }
 979         }
 980 }
 981
 982 void chanrec::RemoveAllPrefixes(userrec* user)
 983 {
 984         prefixlist::iterator n = prefixes.find(user);
 985         if (n != prefixes.end())
 986                 prefixes.erase(n);
 987 }
 988