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                                                 if (Ptr->IsBanned(user))
 322                                                 {
 323                                                         user->WriteServ("474 %s %s :Cannot join channel (You're banned)",user->nick, Ptr->name);
 324                                                         return NULL;
 325                                                 }
 326                                         }
 327                                 }
 328                         }
 329                 }
 330                 else
 331                 {
 332                         Instance->Log(DEBUG,"chanrec::JoinUser(): Overridden checks");
 333                 }
 334                 created = 1;
 335         }
 336
 337         for (UserChanList::const_iterator index = user->chans.begin(); index != user->chans.end(); index++)
 338         {
 339                 if ((*index)->channel == NULL)
 340                 {
 341                         return chanrec::ForceChan(Instance, Ptr, *index, user, created);
 342                 }
 343         }
 344
 345         /*
 346          * XXX: If the user is an oper here, we can just extend their user->chans vector by one
 347          * and put the channel in here. Same for remote users which are not bound by
 348          * the channel limits. Otherwise, nope, youre boned.
 349          */
 350         if (!IS_LOCAL(user)) /* was a check on fd < 0 */
 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         else if (*user->oper)
 358         {
 359                 /* Oper allows extension up to the OPERMAXCHANS value */
 360                 if (user->chans.size() < OPERMAXCHANS)
 361                 {
 362                         ucrec* a = new ucrec();
 363                         chanrec* c = chanrec::ForceChan(Instance, Ptr,a,user,created);
 364                         user->chans.push_back(a);
 365                         return c;
 366                 }
 367         }
 368
 369         user->WriteServ("405 %s %s :You are on too many channels",user->nick, cname);
 370
 371         if (created == 2)
 372         {
 373                 Instance->Log(DEBUG,"BLAMMO, Whacking channel.");
 374                 /* Things went seriously pear shaped, so take this away. bwahaha. */
 375                 chan_hash::iterator n = Instance->chanlist.find(cname);
 376                 if (n != Instance->chanlist.end())
 377                 {
 378                         Ptr->DelUser(user);
 379                         DELETE(Ptr);
 380                         Instance->chanlist.erase(n);
 381                         for (unsigned int index =0; index < user->chans.size(); index++)
 382                         {
 383                                 if (user->chans[index]->channel == Ptr)
 384                                 {
 385                                         user->chans[index]->channel = NULL;
 386                                         user->chans[index]->uc_modes = 0;
 387                                 }
 388                         }
 389                 }
 390         }
 391         else
 392         {
 393                 for (unsigned int index =0; index < user->chans.size(); index++)
 394                 {
 395                         if (user->chans[index]->channel == Ptr)
 396                         {
 397                                 user->chans[index]->channel = NULL;
 398                                 user->chans[index]->uc_modes = 0;
 399                         }
 400                 }
 401         }
 402         return NULL;
 403 }
 404
 405 chanrec* chanrec::ForceChan(InspIRCd* Instance, chanrec* Ptr,ucrec *a,userrec* user, int created)
 406 {
 407         if (created == 2)
 408         {
 409                 /* first user in is given ops */
 410                 a->uc_modes = UCMODE_OP;
 411                 Ptr->AddOppedUser(user);
 412                 Ptr->SetPrefix(user, '@', OP_VALUE, true);
 413         }
 414         else
 415         {
 416                 a->uc_modes = 0;
 417         }
 418
 419         a->channel = Ptr;
 420         Ptr->AddUser(user);
 421         user->ModChannelCount(1);
 422         Ptr->WriteChannel(user,"JOIN :%s",Ptr->name);
 423
 424         /* Major improvement by Brain - we dont need to be calculating all this pointlessly for remote users */
 425         if (IS_LOCAL(user))
 426         {
 427                 if (Ptr->topicset)
 428                 {
 429                         user->WriteServ("332 %s %s :%s", user->nick, Ptr->name, Ptr->topic);
 430                         user->WriteServ("333 %s %s %s %lu", user->nick, Ptr->name, Ptr->setby, (unsigned long)Ptr->topicset);
 431                 }
 432                 Ptr->UserList(user);
 433         }
 434         FOREACH_MOD_I(Instance,I_OnUserJoin,OnUserJoin(user,Ptr));
 435         return Ptr;
 436 }
 437
 438 bool chanrec::IsBanned(userrec* user)
 439 {
 440         char mask[MAXBUF];
 441         sprintf(mask,"%s!%s@%s",user->nick, user->ident, user->GetIPString());
 442         for (BanList::iterator i = this->bans.begin(); i != this->bans.end(); i++)
 443         {
 444                 /* This allows CIDR ban matching
 445                  *
 446                  *        Full masked host                      Full unmasked host                   IP with/without CIDR
 447                  */
 448                 if ((match(user->GetFullHost(),i->data)) || (match(user->GetFullRealHost(),i->data)) || (match(mask, i->data, true)))
 449                 {
 450                         return true;
 451                 }
 452
 453         }
 454         return false;
 455 }
 456
 457 /* chanrec::PartUser
 458  * remove a channel from a users record, and remove the record from the hash
 459  * if the channel has become empty
 460  */
 461 long chanrec::PartUser(userrec *user, const char* reason)
 462 {
 463         if (!user)
 464                 return this->GetUserCounter();
 465
 466         for (unsigned int i =0; i < user->chans.size(); i++)
 467         {
 468                 /* zap it from the channel list of the user */
 469                 if (user->chans[i]->channel == this)
 470                 {
 471                         if (reason)
 472                         {
 473                                 FOREACH_MOD(I_OnUserPart,OnUserPart(user, this, reason));
 474                                 this->WriteChannel(user, "PART %s :%s", this->name, reason);
 475                         }
 476                         else
 477                         {
 478                                 FOREACH_MOD(I_OnUserPart,OnUserPart(user, this, ""));
 479                                 this->WriteChannel(user, "PART :%s", this->name);
 480                         }
 481                         user->chans[i]->uc_modes = 0;
 482                         user->chans[i]->channel = NULL;
 483                         user->ModChannelCount(-1);
 484                         this->RemoveAllPrefixes(user);
 485                         break;
 486                 }
 487         }
 488
 489         if (!this->DelUser(user)) /* if there are no users left on the channel... */
 490         {
 491                 chan_hash::iterator iter = ServerInstance->chanlist.find(this->name);
 492                 /* kill the record */
 493                 if (iter != ServerInstance->chanlist.end())
 494                 {
 495                         ServerInstance->Log(DEBUG,"del_channel: destroyed: %s", this->name);
 496                         FOREACH_MOD(I_OnChannelDelete,OnChannelDelete(this));
 497                         ServerInstance->chanlist.erase(iter);
 498                 }
 499                 return 0;
 500         }
 501
 502         return this->GetUserCounter();
 503 }
 504
 505 long chanrec::ServerKickUser(userrec* user, const char* reason, bool triggerevents)
 506 {
 507         if (!user || !reason)
 508                 return this->GetUserCounter();
 509
 510         if (IS_LOCAL(user))
 511         {
 512                 if (!this->HasUser(user))
 513                 {
 514                         /* Not on channel */
 515                         return this->GetUserCounter();
 516                 }
 517         }
 518
 519         if (triggerevents)
 520         {
 521                 FOREACH_MOD(I_OnUserKick,OnUserKick(NULL,user,this,reason));
 522         }
 523
 524         for (unsigned int i =0; i < user->chans.size(); i++)
 525         {
 526                 if (user->chans[i]->channel == this)
 527                 {
 528                         this->WriteChannelWithServ(ServerInstance->Config->ServerName, "KICK %s %s :%s", this->name, user->nick, reason);
 529                         user->chans[i]->uc_modes = 0;
 530                         user->chans[i]->channel = NULL;
 531                         this->RemoveAllPrefixes(user);
 532                         break;
 533                 }
 534         }
 535
 536         if (!this->DelUser(user))
 537         {
 538                 chan_hash::iterator iter = ServerInstance->chanlist.find(this->name);
 539                 /* kill the record */
 540                 if (iter != ServerInstance->chanlist.end())
 541                 {
 542                         FOREACH_MOD(I_OnChannelDelete,OnChannelDelete(this));
 543                         ServerInstance->chanlist.erase(iter);
 544                 }
 545                 return 0;
 546         }
 547
 548         return this->GetUserCounter();
 549 }
 550
 551 long chanrec::KickUser(userrec *src, userrec *user, const char* reason)
 552 {
 553         if (!src || !user || !reason)
 554                 return this->GetUserCounter();
 555
 556         if (IS_LOCAL(src))
 557         {
 558                 if (!this->HasUser(user))
 559                 {
 560                         src->WriteServ("441 %s %s %s :They are not on that channel",src->nick, user->nick, this->name);
 561                         return this->GetUserCounter();
 562                 }
 563                 if ((ServerInstance->ULine(user->server)) && (!ServerInstance->ULine(src->server)))
 564                 {
 565                         src->WriteServ("482 %s %s :Only a u-line may kick a u-line from a channel.",src->nick, this->name);
 566                         return this->GetUserCounter();
 567                 }
 568                 int MOD_RESULT = 0;
 569
 570                 if (!ServerInstance->ULine(src->server))
 571                 {
 572                         MOD_RESULT = 0;
 573                         FOREACH_RESULT(I_OnUserPreKick,OnUserPreKick(src,user,this,reason));
 574                         if (MOD_RESULT == 1)
 575                                 return this->GetUserCounter();
 576                 }
 577                 /* Set to -1 by OnUserPreKick if explicit allow was set */
 578                 if (MOD_RESULT != -1)
 579                 {
 580                         FOREACH_RESULT(I_OnAccessCheck,OnAccessCheck(src,user,this,AC_KICK));
 581                         if ((MOD_RESULT == ACR_DENY) && (!ServerInstance->ULine(src->server)))
 582                                 return this->GetUserCounter();
 583
 584                         if ((MOD_RESULT == ACR_DEFAULT) || (!ServerInstance->ULine(src->server)))
 585                         {
 586                                 int them = this->GetStatus(src);
 587                                 int us = this->GetStatus(user);
 588                                 if ((them < STATUS_HOP) || (them < us))
 589                                 {
 590                                         if (them == STATUS_HOP)
 591                                         {
 592                                                 src->WriteServ("482 %s %s :You must be a channel operator",src->nick, this->name);
 593                                         }
 594                                         else
 595                                         {
 596                                                 src->WriteServ("482 %s %s :You must be at least a half-operator",src->nick, this->name);
 597                                         }
 598                                         return this->GetUserCounter();
 599                                 }
 600                         }
 601                 }
 602         }
 603
 604         FOREACH_MOD(I_OnUserKick,OnUserKick(src,user,this,reason));
 605
 606         for (UserChanList::const_iterator i = user->chans.begin(); i != user->chans.end(); i++)
 607         {
 608                 /* zap it from the channel list of the user */
 609                 if ((*i)->channel == this)
 610                 {
 611                         this->WriteChannel(src, "KICK %s %s :%s", this->name, user->nick, reason);
 612                         (*i)->uc_modes = 0;
 613                         (*i)->channel = NULL;
 614                         this->RemoveAllPrefixes(user);
 615                         break;
 616                 }
 617         }
 618
 619         if (!this->DelUser(user))
 620         /* if there are no users left on the channel */
 621         {
 622                 chan_hash::iterator iter = ServerInstance->chanlist.find(this->name);
 623
 624                 /* kill the record */
 625                 if (iter != ServerInstance->chanlist.end())
 626                 {
 627                         FOREACH_MOD(I_OnChannelDelete,OnChannelDelete(this));
 628                         ServerInstance->chanlist.erase(iter);
 629                 }
 630                 return 0;
 631         }
 632
 633         return this->GetUserCounter();
 634 }
 635
 636 void chanrec::WriteChannel(userrec* user, char* text, ...)
 637 {
 638         char textbuffer[MAXBUF];
 639         va_list argsPtr;
 640
 641         if (!user || !text)
 642                 return;
 643
 644         va_start(argsPtr, text);
 645         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 646         va_end(argsPtr);
 647
 648         this->WriteChannel(user, std::string(textbuffer));
 649 }
 650
 651 void chanrec::WriteChannel(userrec* user, const std::string &text)
 652 {
 653         CUList *ulist = this->GetUsers();
 654
 655         if (!user)
 656                 return;
 657
 658         for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
 659         {
 660                 if (IS_LOCAL(i->second))
 661                         user->WriteTo(i->second,text);
 662         }
 663 }
 664
 665 void chanrec::WriteChannelWithServ(const char* ServName, const char* text, ...)
 666 {
 667         char textbuffer[MAXBUF];
 668         va_list argsPtr;
 669
 670         if (!text)
 671                 return;
 672
 673         va_start(argsPtr, text);
 674         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 675         va_end(argsPtr);
 676
 677         this->WriteChannelWithServ(ServName, std::string(textbuffer));
 678 }
 679
 680 void chanrec::WriteChannelWithServ(const char* ServName, const std::string &text)
 681 {
 682         CUList *ulist = this->GetUsers();
 683
 684         for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
 685         {
 686                 if (IS_LOCAL(i->second))
 687                         i->second->WriteServ(text);
 688         }
 689 }
 690
 691 /* write formatted text from a source user to all users on a channel except
 692  * for the sender (for privmsg etc) */
 693 void chanrec::WriteAllExceptSender(userrec* user, char status, char* text, ...)
 694 {
 695         char textbuffer[MAXBUF];
 696         va_list argsPtr;
 697
 698         if (!user || !text)
 699                 return;
 700
 701         va_start(argsPtr, text);
 702         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 703         va_end(argsPtr);
 704
 705         this->WriteAllExceptSender(user, status, std::string(textbuffer));
 706 }
 707
 708 void chanrec::WriteAllExceptSender(userrec* user, char status, const std::string& text)
 709 {
 710         CUList *ulist;
 711
 712         if (!user)
 713                 return;
 714
 715         switch (status)
 716         {
 717                 case '@':
 718                         ulist = this->GetOppedUsers();
 719                         break;
 720                 case '%':
 721                         ulist = this->GetHalfoppedUsers();
 722                         break;
 723                 case '+':
 724                         ulist = this->GetVoicedUsers();
 725                         break;
 726                 default:
 727                         ulist = this->GetUsers();
 728                         break;
 729         }
 730
 731         for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
 732         {
 733                 if ((IS_LOCAL(i->second)) && (user != i->second))
 734                         i->second->WriteFrom(user,text);
 735         }
 736 }
 737
 738 /*
 739  * return a count of the users on a specific channel accounting for
 740  * invisible users who won't increase the count. e.g. for /LIST
 741  */
 742 int chanrec::CountInvisible()
 743 {
 744         int count = 0;
 745         CUList *ulist= this->GetUsers();
 746         for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
 747         {
 748                 if (!(i->second->modes[UM_INVISIBLE]))
 749                         count++;
 750         }
 751
 752         return count;
 753 }
 754
 755 char* chanrec::ChanModes(bool showkey)
 756 {
 757         static char scratch[MAXBUF];
 758         static char sparam[MAXBUF];
 759         char* offset = scratch;
 760         std::string extparam = "";
 761
 762         *scratch = '\0';
 763         *sparam = '\0';
 764
 765         /* This was still iterating up to 190, chanrec::custom_modes is only 64 elements -- Om */
 766         for(int n = 0; n < 64; n++)
 767         {
 768                 if(this->modes[n])
 769                 {
 770                         *offset++ = n + 65;
 771                         extparam = "";
 772                         switch (n)
 773                         {
 774                                 case CM_KEY:
 775                                         extparam = (showkey ? this->key : "<key>");
 776                                 break;
 777                                 case CM_LIMIT:
 778                                         extparam = ConvToStr(this->limit);
 779                                 break;
 780                                 case CM_NOEXTERNAL:
 781                                 case CM_TOPICLOCK:
 782                                 case CM_INVITEONLY:
 783                                 case CM_MODERATED:
 784                                 case CM_SECRET:
 785                                 case CM_PRIVATE:
 786                                         /* We know these have no parameters */
 787                                 break;
 788                                 default:
 789                                         extparam = this->GetModeParameter(n + 65);
 790                                 break;
 791                         }
 792                         if (extparam != "")
 793                         {
 794                                 charlcat(sparam,' ',MAXBUF);
 795                                 strlcat(sparam,extparam.c_str(),MAXBUF);
 796                         }
 797                 }
 798         }
 799
 800         /* Null terminate scratch */
 801         *offset = '\0';
 802         strlcat(scratch,sparam,MAXBUF);
 803         return scratch;
 804 }
 805
 806 /* compile a userlist of a channel into a string, each nick seperated by
 807  * spaces and op, voice etc status shown as @ and +, and send it to 'user'
 808  */
 809 void chanrec::UserList(userrec *user)
 810 {
 811         char list[MAXBUF];
 812         size_t dlen, curlen;
 813         int MOD_RESULT = 0;
 814
 815         FOREACH_RESULT(I_OnUserList,OnUserList(user, this));
 816         ServerInstance->Log(DEBUG,"MOD_RESULT for UserList = %d",MOD_RESULT);
 817         if (MOD_RESULT == 1)
 818                 return;
 819
 820         ServerInstance->Log(DEBUG,"Using builtin NAMES list generation");
 821
 822         dlen = curlen = snprintf(list,MAXBUF,"353 %s = %s :", user->nick, this->name);
 823
 824         int numusers = 0;
 825         char* ptr = list + dlen;
 826
 827         CUList *ulist= this->GetUsers();
 828
 829         /* Improvement by Brain - this doesnt change in value, so why was it inside
 830          * the loop?
 831          */
 832         bool has_user = this->HasUser(user);
 833
 834         for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
 835         {
 836                 if ((!has_user) && (i->second->modes[UM_INVISIBLE]))
 837                 {
 838                         /*
 839                          * user is +i, and source not on the channel, does not show
 840                          * nick in NAMES list
 841                          */
 842                         continue;
 843                 }
 844
 845                 size_t ptrlen = snprintf(ptr, MAXBUF, "%s%s ", this->GetPrefixChar(i->second), i->second->nick);
 846
 847                 curlen += ptrlen;
 848                 ptr += ptrlen;
 849
 850                 numusers++;
 851
 852                 if (curlen > (480-NICKMAX))
 853                 {
 854                         /* list overflowed into multiple numerics */
 855                         user->WriteServ(std::string(list));
 856
 857                         /* reset our lengths */
 858                         dlen = curlen = snprintf(list,MAXBUF,"353 %s = %s :", user->nick, this->name);
 859                         ptr = list + dlen;
 860
 861                         ptrlen = 0;
 862                         numusers = 0;
 863                 }
 864         }
 865
 866         /* if whats left in the list isnt empty, send it */
 867         if (numusers)
 868         {
 869                 user->WriteServ(std::string(list));
 870         }
 871
 872         user->WriteServ("366 %s %s :End of /NAMES list.", user->nick, this->name);
 873 }
 874
 875 long chanrec::GetMaxBans()
 876 {
 877         std::string x;
 878         for (std::map<std::string,int>::iterator n = ServerInstance->Config->maxbans.begin(); n != ServerInstance->Config->maxbans.end(); n++)
 879         {
 880                 x = n->first;
 881                 if (match(this->name,x.c_str()))
 882                 {
 883                         return n->second;
 884                 }
 885         }
 886         return 64;
 887 }
 888
 889
 890 /* returns the status character for a given user on a channel, e.g. @ for op,
 891  * % for halfop etc. If the user has several modes set, the highest mode
 892  * the user has must be returned.
 893  */
 894 const char* chanrec::GetPrefixChar(userrec *user)
 895 {
 896         static char px[2];
 897         unsigned int mx = 0;
 898
 899         *px = 0;
 900         *(px+1) = 0;
 901
 902         prefixlist::iterator n = prefixes.find(user);
 903         if (n != prefixes.end())
 904         {
 905                 for (std::vector<prefixtype>::iterator x = n->second.begin(); x != n->second.end(); x++)
 906                 {
 907                         if (x->second > mx)
 908                         {
 909                                 *px = x->first;
 910                                 mx  = x->second;
 911                         }
 912                 }
 913         }
 914
 915         return px;
 916 }
 917
 918 const char* chanrec::GetAllPrefixChars(userrec* user)
 919 {
 920         static char prefix[MAXBUF];
 921         int ctr = 0;
 922         *prefix = 0;
 923
 924         prefixlist::iterator n = prefixes.find(user);
 925         if (n != prefixes.end())
 926         {
 927                 for (std::vector<prefixtype>::iterator x = n->second.begin(); x != n->second.end(); x++)
 928                 {
 929                         prefix[ctr++] = x->first;
 930                 }
 931         }
 932
 933         prefix[ctr] = 0;
 934
 935         return prefix;
 936 }
 937
 938 unsigned int chanrec::GetPrefixValue(userrec* user)
 939 {
 940         unsigned int mx = 0;
 941
 942         prefixlist::iterator n = prefixes.find(user);
 943         if (n != prefixes.end())
 944         {
 945                 for (std::vector<prefixtype>::iterator x = n->second.begin(); x != n->second.end(); x++)
 946                 {
 947                         if (x->second > mx)
 948                                 mx  = x->second;
 949                 }
 950         }
 951
 952         return mx;
 953 }
 954
 955
 956 int chanrec::GetStatusFlags(userrec *user)
 957 {
 958         for (std::vector<ucrec*>::const_iterator i = user->chans.begin(); i != user->chans.end(); i++)
 959         {
 960                 if ((*i)->channel == this)
 961                 {
 962                         return (*i)->uc_modes;
 963                 }
 964         }
 965         return 0;
 966 }
 967
 968
 969 int chanrec::GetStatus(userrec *user)
 970 {
 971         if (ServerInstance->ULine(user->server))
 972                 return STATUS_OP;
 973
 974         for (std::vector<ucrec*>::const_iterator i = user->chans.begin(); i != user->chans.end(); i++)
 975         {
 976                 if ((*i)->channel == this)
 977                 {
 978                         if (((*i)->uc_modes & UCMODE_OP) > 0)
 979                         {
 980                                 return STATUS_OP;
 981                         }
 982                         if (((*i)->uc_modes & UCMODE_HOP) > 0)
 983                         {
 984                                 return STATUS_HOP;
 985                         }
 986                         if (((*i)->uc_modes & UCMODE_VOICE) > 0)
 987                         {
 988                                 return STATUS_VOICE;
 989                         }
 990                         return STATUS_NORMAL;
 991                 }
 992         }
 993         return STATUS_NORMAL;
 994 }
 995
 996 /*bool ModeParser::PrefixComparison(const prefixtype one, const prefixtype two)
 997 {
 998         return one.second > two.second;
 999 }*/
1000
1001 void chanrec::SetPrefix(userrec* user, char prefix, unsigned int prefix_value, bool adding)
1002 {
1003         prefixlist::iterator n = prefixes.find(user);
1004         prefixtype pfx = std::make_pair(prefix,prefix_value);
1005         if (adding)
1006         {
1007                 if (n != prefixes.end())
1008                 {
1009                         if (std::find(n->second.begin(), n->second.end(), pfx) == n->second.end())
1010                         {
1011                                 n->second.push_back(pfx);
1012                                 std::sort(n->second.begin(), n->second.end(), ModeParser::PrefixComparison);
1013                         }
1014                 }
1015                 else
1016                 {
1017                         pfxcontainer one;
1018                         one.push_back(pfx);
1019                         prefixes.insert(std::make_pair<userrec*,pfxcontainer>(user, one));
1020                 }
1021         }
1022         else
1023         {
1024                 if (n != prefixes.end())
1025                 {
1026                         pfxcontainer::iterator x = std::find(n->second.begin(), n->second.end(), pfx);
1027                         if (x != n->second.end())
1028                                 n->second.erase(x);
1029                 }
1030         }
1031 }
1032
1033 void chanrec::RemoveAllPrefixes(userrec* user)
1034 {
1035         prefixlist::iterator n = prefixes.find(user);
1036         if (n != prefixes.end())
1037                 prefixes.erase(n);
1038 }
1039