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