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 #include "helperfuncs.h"
  39 #include "typedefs.h"
  40
  41 extern time_t TIME;
  42
  43 chanrec::chanrec(InspIRCd* Instance) : ServerInstance(Instance)
  44 {
  45         *name = *topic = *setby = *key = 0;
  46         created = topicset = limit = 0;
  47         internal_userlist.clear();
  48         memset(&modes,0,64);
  49 }
  50
  51 void chanrec::SetMode(char mode,bool mode_on)
  52 {
  53         modes[mode-65] = mode_on;
  54         if (!mode_on)
  55                 this->SetModeParam(mode,"",false);
  56 }
  57
  58
  59 void chanrec::SetModeParam(char mode,const char* parameter,bool mode_on)
  60 {
  61         log(DEBUG,"SetModeParam called");
  62
  63         CustomModeList::iterator n = custom_mode_params.find(mode);
  64
  65         if (mode_on)
  66         {
  67                 if (n == custom_mode_params.end())
  68                 {
  69                         custom_mode_params[mode] = strdup(parameter);
  70                         log(DEBUG,"Custom mode parameter %c %s added",mode,parameter);
  71                 }
  72                 else
  73                 {
  74                         log(DEBUG, "Tried to set custom mode parameter for %c '%s' when it was already '%s'", mode, parameter, n->second);
  75                 }
  76         }
  77         else
  78         {
  79                 if (n != custom_mode_params.end())
  80                 {
  81                         free(n->second);
  82                         custom_mode_params.erase(n);
  83                 }
  84         }
  85 }
  86
  87 bool chanrec::IsModeSet(char mode)
  88 {
  89         return modes[mode-65];
  90 }
  91
  92 std::string chanrec::GetModeParameter(char mode)
  93 {
  94         if (mode == 'k')
  95         {
  96                 return this->key;
  97         }
  98         else if (mode == 'l')
  99         {
 100                 return ConvToStr(this->limit);
 101         }
 102         else
 103         {
 104                 CustomModeList::iterator n = custom_mode_params.find(mode);
 105                 if (n != custom_mode_params.end())
 106                 {
 107                         return n->second;
 108                 }
 109                 return "";
 110         }
 111 }
 112
 113 long chanrec::GetUserCounter()
 114 {
 115         return (this->internal_userlist.size());
 116 }
 117
 118 void chanrec::AddUser(userrec* user)
 119 {
 120         internal_userlist[user] = user;
 121 }
 122
 123 unsigned long chanrec::DelUser(userrec* user)
 124 {
 125         CUListIter a = internal_userlist.find(user);
 126
 127         if (a != internal_userlist.end())
 128         {
 129                 internal_userlist.erase(a);
 130                 /* And tidy any others... */
 131                 DelOppedUser(user);
 132                 DelHalfoppedUser(user);
 133                 DelVoicedUser(user);
 134         }
 135
 136         return internal_userlist.size();
 137 }
 138
 139 bool chanrec::HasUser(userrec* user)
 140 {
 141         return (internal_userlist.find(user) != internal_userlist.end());
 142 }
 143
 144 void chanrec::AddOppedUser(userrec* user)
 145 {
 146         internal_op_userlist[user] = user;
 147 }
 148
 149 void chanrec::DelOppedUser(userrec* user)
 150 {
 151         CUListIter a = internal_op_userlist.find(user);
 152         if (a != internal_op_userlist.end())
 153         {
 154                 internal_op_userlist.erase(a);
 155                 return;
 156         }
 157 }
 158
 159 void chanrec::AddHalfoppedUser(userrec* user)
 160 {
 161         internal_halfop_userlist[user] = user;
 162 }
 163
 164 void chanrec::DelHalfoppedUser(userrec* user)
 165 {
 166         CUListIter a = internal_halfop_userlist.find(user);
 167
 168         if (a != internal_halfop_userlist.end())
 169         {
 170                 internal_halfop_userlist.erase(a);
 171         }
 172 }
 173
 174 void chanrec::AddVoicedUser(userrec* user)
 175 {
 176         internal_voice_userlist[user] = user;
 177 }
 178
 179 void chanrec::DelVoicedUser(userrec* user)
 180 {
 181         CUListIter a = internal_voice_userlist.find(user);
 182
 183         if (a != internal_voice_userlist.end())
 184         {
 185                 internal_voice_userlist.erase(a);
 186         }
 187 }
 188
 189 CUList* chanrec::GetUsers()
 190 {
 191         return &internal_userlist;
 192 }
 193
 194 CUList* chanrec::GetOppedUsers()
 195 {
 196         return &internal_op_userlist;
 197 }
 198
 199 CUList* chanrec::GetHalfoppedUsers()
 200 {
 201         return &internal_halfop_userlist;
 202 }
 203
 204 CUList* chanrec::GetVoicedUsers()
 205 {
 206         return &internal_voice_userlist;
 207 }
 208
 209 /*
 210  * add a channel to a user, creating the record for it if needed and linking
 211  * it to the user record
 212  */
 213 chanrec* chanrec::JoinUser(InspIRCd* Instance, userrec *user, const char* cn, bool override, const char* key)
 214 {
 215         if (!user || !cn)
 216                 return NULL;
 217
 218         int created = 0;
 219         char cname[MAXBUF];
 220         int MOD_RESULT = 0;
 221         strlcpy(cname,cn,CHANMAX);
 222
 223         chanrec* Ptr = Instance->FindChan(cname);
 224
 225         if (!Ptr)
 226         {
 227                 if (user->fd > -1)
 228                 {
 229                         MOD_RESULT = 0;
 230                         FOREACH_RESULT_I(Instance,I_OnUserPreJoin,OnUserPreJoin(user,NULL,cname));
 231                         if (MOD_RESULT == 1)
 232                                 return NULL;
 233                 }
 234
 235                 /* create a new one */
 236                 Ptr = new chanrec(Instance);
 237                 Instance->chanlist[cname] = Ptr;
 238
 239                 strlcpy(Ptr->name, cname,CHANMAX);
 240                 Ptr->modes[CM_TOPICLOCK] = Ptr->modes[CM_NOEXTERNAL] = 1;
 241                 Ptr->created = TIME;
 242                 *Ptr->topic = 0;
 243                 strlcpy(Ptr->setby, user->nick,NICKMAX-1);
 244                 Ptr->topicset = 0;
 245                 log(DEBUG,"chanrec::JoinUser(): created: %s",cname);
 246                 /*
 247                  * set created to 2 to indicate user
 248                  * is the first in the channel
 249                  * and should be given ops
 250                  */
 251                 created = 2;
 252         }
 253         else
 254         {
 255                 /* Already on the channel */
 256                 if (Ptr->HasUser(user))
 257                         return NULL;
 258
 259                 /*
 260                  * remote users are allowed us to bypass channel modes
 261                  * and bans (used by servers)
 262                  */
 263                 if (IS_LOCAL(user)) /* was a check on fd > -1 */
 264                 {
 265                         MOD_RESULT = 0;
 266                         FOREACH_RESULT_I(Instance,I_OnUserPreJoin,OnUserPreJoin(user,Ptr,cname));
 267                         if (MOD_RESULT == 1)
 268                         {
 269                                 return NULL;
 270                         }
 271                         else if (MOD_RESULT == 0)
 272                         {
 273                                 if (*Ptr->key)
 274                                 {
 275                                         MOD_RESULT = 0;
 276                                         FOREACH_RESULT_I(Instance,I_OnCheckKey,OnCheckKey(user, Ptr, key ? key : ""));
 277                                         if (!MOD_RESULT)
 278                                         {
 279                                                 if (!key)
 280                                                 {
 281                                                         log(DEBUG,"chanrec::JoinUser(): no key given in JOIN");
 282                                                         user->WriteServ("475 %s %s :Cannot join channel (Requires key)",user->nick, Ptr->name);
 283                                                         return NULL;
 284                                                 }
 285                                                 else
 286                                                 {
 287                                                         if (strcmp(key,Ptr->key))
 288                                                         {
 289                                                                 log(DEBUG,"chanrec::JoinUser(): bad key given in JOIN");
 290                                                                 user->WriteServ("475 %s %s :Cannot join channel (Incorrect key)",user->nick, Ptr->name);
 291                                                                 return NULL;
 292                                                         }
 293                                                 }
 294                                         }
 295                                 }
 296                                 if (Ptr->modes[CM_INVITEONLY])
 297                                 {
 298                                         MOD_RESULT = 0;
 299                                         irc::string xname(Ptr->name);
 300                                         FOREACH_RESULT_I(Instance,I_OnCheckInvite,OnCheckInvite(user, Ptr));
 301                                         if (!MOD_RESULT)
 302                                         {
 303                                                 if (user->IsInvited(xname))
 304                                                 {
 305                                                         /* user was invited to channel */
 306                                                         /* there may be an optional channel NOTICE here */
 307                                                 }
 308                                                 else
 309                                                 {
 310                                                         user->WriteServ("473 %s %s :Cannot join channel (Invite only)",user->nick, Ptr->name);
 311                                                         return NULL;
 312                                                 }
 313                                         }
 314                                         user->RemoveInvite(xname);
 315                                 }
 316                                 if (Ptr->limit)
 317                                 {
 318                                         MOD_RESULT = 0;
 319                                         FOREACH_RESULT_I(Instance,I_OnCheckLimit,OnCheckLimit(user, Ptr));
 320                                         if (!MOD_RESULT)
 321                                         {
 322                                                 if (Ptr->GetUserCounter() >= Ptr->limit)
 323                                                 {
 324                                                         user->WriteServ("471 %s %s :Cannot join channel (Channel is full)",user->nick, Ptr->name);
 325                                                         return NULL;
 326                                                 }
 327                                         }
 328                                 }
 329                                 if (Ptr->bans.size())
 330                                 {
 331                                         MOD_RESULT = 0;
 332                                         FOREACH_RESULT_I(Instance,I_OnCheckBan,OnCheckBan(user, Ptr));
 333                                         char mask[MAXBUF];
 334                                         sprintf(mask,"%s!%s@%s",user->nick, user->ident, user->GetIPString());
 335                                         if (!MOD_RESULT)
 336                                         {
 337                                                 for (BanList::iterator i = Ptr->bans.begin(); i != Ptr->bans.end(); i++)
 338                                                 {
 339                                                         /* This allows CIDR ban matching
 340                                                          *
 341                                                          *        Full masked host                      Full unmasked host                   IP with/without CIDR
 342                                                          */
 343                                                         if ((match(user->GetFullHost(),i->data)) || (match(user->GetFullRealHost(),i->data)) || (match(mask, i->data, true)))
 344                                                         {
 345                                                                 user->WriteServ("474 %s %s :Cannot join channel (You're banned)",user->nick, Ptr->name);
 346                                                                 return NULL;
 347                                                         }
 348                                                 }
 349                                         }
 350                                 }
 351                         }
 352                 }
 353                 else
 354                 {
 355                         log(DEBUG,"chanrec::JoinUser(): Overridden checks");
 356                 }
 357                 created = 1;
 358         }
 359
 360         for (UserChanList::const_iterator index = user->chans.begin(); index != user->chans.end(); index++)
 361         {
 362                 if ((*index)->channel == NULL)
 363                 {
 364                         return chanrec::ForceChan(Instance, Ptr, *index, user, created);
 365                 }
 366         }
 367
 368         /*
 369          * XXX: If the user is an oper here, we can just extend their user->chans vector by one
 370          * and put the channel in here. Same for remote users which are not bound by
 371          * the channel limits. Otherwise, nope, youre boned.
 372          */
 373         if (!IS_LOCAL(user)) /* was a check on fd < 0 */
 374         {
 375                 ucrec* a = new ucrec();
 376                 chanrec* c = chanrec::ForceChan(Instance, Ptr,a,user,created);
 377                 user->chans.push_back(a);
 378                 return c;
 379         }
 380         else if (*user->oper)
 381         {
 382                 /* Oper allows extension up to the OPERMAXCHANS value */
 383                 if (user->chans.size() < OPERMAXCHANS)
 384                 {
 385                         ucrec* a = new ucrec();
 386                         chanrec* c = chanrec::ForceChan(Instance, Ptr,a,user,created);
 387                         user->chans.push_back(a);
 388                         return c;
 389                 }
 390         }
 391
 392         user->WriteServ("405 %s %s :You are on too many channels",user->nick, cname);
 393
 394         if (created == 2)
 395         {
 396                 log(DEBUG,"BLAMMO, Whacking channel.");
 397                 /* Things went seriously pear shaped, so take this away. bwahaha. */
 398                 chan_hash::iterator n = Instance->chanlist.find(cname);
 399                 if (n != Instance->chanlist.end())
 400                 {
 401                         Ptr->DelUser(user);
 402                         DELETE(Ptr);
 403                         Instance->chanlist.erase(n);
 404                         for (unsigned int index =0; index < user->chans.size(); index++)
 405                         {
 406                                 if (user->chans[index]->channel == Ptr)
 407                                 {
 408                                         user->chans[index]->channel = NULL;
 409                                         user->chans[index]->uc_modes = 0;
 410                                 }
 411                         }
 412                 }
 413         }
 414         else
 415         {
 416                 for (unsigned int index =0; index < user->chans.size(); index++)
 417                 {
 418                         if (user->chans[index]->channel == Ptr)
 419                         {
 420                                 user->chans[index]->channel = NULL;
 421                                 user->chans[index]->uc_modes = 0;
 422                         }
 423                 }
 424         }
 425         return NULL;
 426 }
 427
 428 chanrec* chanrec::ForceChan(InspIRCd* Instance, chanrec* Ptr,ucrec *a,userrec* user, int created)
 429 {
 430         if (created == 2)
 431         {
 432                 /* first user in is given ops */
 433                 a->uc_modes = UCMODE_OP;
 434                 Ptr->AddOppedUser(user);
 435         }
 436         else
 437         {
 438                 a->uc_modes = 0;
 439         }
 440
 441         a->channel = Ptr;
 442         Ptr->AddUser(user);
 443         Ptr->WriteChannel(user,"JOIN :%s",Ptr->name);
 444
 445         /* Major improvement by Brain - we dont need to be calculating all this pointlessly for remote users */
 446         if (IS_LOCAL(user))
 447         {
 448                 log(DEBUG,"Sent JOIN to client");
 449                 if (Ptr->topicset)
 450                 {
 451                         user->WriteServ("332 %s %s :%s", user->nick, Ptr->name, Ptr->topic);
 452                         user->WriteServ("333 %s %s %s %lu", user->nick, Ptr->name, Ptr->setby, (unsigned long)Ptr->topicset);
 453                 }
 454                 Ptr->UserList(user);
 455                 user->WriteServ("366 %s %s :End of /NAMES list.", user->nick, Ptr->name);
 456         }
 457         FOREACH_MOD_I(Instance,I_OnUserJoin,OnUserJoin(user,Ptr));
 458         return Ptr;
 459 }
 460
 461 /* chanrec::PartUser
 462  * remove a channel from a users record, and remove the record from the hash
 463  * if the channel has become empty
 464  */
 465 long chanrec::PartUser(userrec *user, const char* reason)
 466 {
 467         if (!user)
 468                 return this->GetUserCounter();
 469
 470         for (unsigned int i =0; i < user->chans.size(); i++)
 471         {
 472                 /* zap it from the channel list of the user */
 473                 if (user->chans[i]->channel == this)
 474                 {
 475                         if (reason)
 476                         {
 477                                 FOREACH_MOD(I_OnUserPart,OnUserPart(user, this, reason));
 478                                 this->WriteChannel(user, "PART %s :%s", this->name, reason);
 479                         }
 480                         else
 481                         {
 482                                 FOREACH_MOD(I_OnUserPart,OnUserPart(user, this, ""));
 483                                 this->WriteChannel(user, "PART :%s", this->name);
 484                         }
 485                         user->chans[i]->uc_modes = 0;
 486                         user->chans[i]->channel = NULL;
 487                         break;
 488                 }
 489         }
 490
 491         if (!this->DelUser(user)) /* if there are no users left on the channel... */
 492         {
 493                 chan_hash::iterator iter = ServerInstance->chanlist.find(this->name);
 494                 /* kill the record */
 495                 if (iter != ServerInstance->chanlist.end())
 496                 {
 497                         log(DEBUG,"del_channel: destroyed: %s", this->name);
 498                         FOREACH_MOD(I_OnChannelDelete,OnChannelDelete(this));
 499                         ServerInstance->chanlist.erase(iter);
 500                 }
 501                 return 0;
 502         }
 503
 504         return this->GetUserCounter();
 505 }
 506
 507 long chanrec::ServerKickUser(userrec* user, const char* reason, bool triggerevents)
 508 {
 509         if (!user || !reason)
 510                 return this->GetUserCounter();
 511
 512         if (IS_LOCAL(user))
 513         {
 514                 if (!this->HasUser(user))
 515                 {
 516                         /* Not on channel */
 517                         return this->GetUserCounter();
 518                 }
 519         }
 520
 521         if (triggerevents)
 522         {
 523                 FOREACH_MOD(I_OnUserKick,OnUserKick(NULL,user,this,reason));
 524         }
 525
 526         for (unsigned int i =0; i < user->chans.size(); i++)
 527         {
 528                 if (user->chans[i]->channel == this)
 529                 {
 530                         this->WriteChannelWithServ(ServerInstance->Config->ServerName, "KICK %s %s :%s", this->name, user->nick, reason);
 531                         user->chans[i]->uc_modes = 0;
 532                         user->chans[i]->channel = NULL;
 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 ((is_uline(user->server)) && (!is_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 (!is_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) && (!is_uline(src->server)))
 583                                 return this->GetUserCounter();
 584
 585                         if ((MOD_RESULT == ACR_DEFAULT) || (!is_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                         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 (i->second->fd != FD_MAGIC_NUMBER)
 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
 814         dlen = curlen = snprintf(list,MAXBUF,"353 %s = %s :", user->nick, this->name);
 815
 816         int numusers = 0;
 817         char* ptr = list + dlen;
 818
 819         CUList *ulist= this->GetUsers();
 820
 821         /* Improvement by Brain - this doesnt change in value, so why was it inside
 822          * the loop?
 823          */
 824         bool has_user = this->HasUser(user);
 825
 826         for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
 827         {
 828                 if ((!has_user) && (i->second->modes[UM_INVISIBLE]))
 829                 {
 830                         /*
 831                          * user is +i, and source not on the channel, does not show
 832                          * nick in NAMES list
 833                          */
 834                         continue;
 835                 }
 836
 837                 size_t ptrlen = snprintf(ptr, MAXBUF, "%s%s ", this->GetStatusChar(i->second), i->second->nick);
 838
 839                 curlen += ptrlen;
 840                 ptr += ptrlen;
 841
 842                 numusers++;
 843
 844                 if (curlen > (480-NICKMAX))
 845                 {
 846                         /* list overflowed into multiple numerics */
 847                         user->WriteServ(list);
 848
 849                         /* reset our lengths */
 850                         dlen = curlen = snprintf(list,MAXBUF,"353 %s = %s :", user->nick, this->name);
 851                         ptr = list + dlen;
 852
 853                         ptrlen = 0;
 854                         numusers = 0;
 855                 }
 856         }
 857
 858         /* if whats left in the list isnt empty, send it */
 859         if (numusers)
 860         {
 861                 user->WriteServ(list);
 862         }
 863 }
 864
 865 long chanrec::GetMaxBans()
 866 {
 867         std::string x;
 868         for (std::map<std::string,int>::iterator n = ServerInstance->Config->maxbans.begin(); n != ServerInstance->Config->maxbans.end(); n++)
 869         {
 870                 x = n->first;
 871                 if (match(this->name,x.c_str()))
 872                 {
 873                         return n->second;
 874                 }
 875         }
 876         return 64;
 877 }
 878
 879
 880 /* returns the status character for a given user on a channel, e.g. @ for op,
 881  * % for halfop etc. If the user has several modes set, the highest mode
 882  * the user has must be returned. */
 883
 884 const char* chanrec::GetStatusChar(userrec *user)
 885 {
 886         for (std::vector<ucrec*>::const_iterator i = user->chans.begin(); i != user->chans.end(); i++)
 887         {
 888                 if ((*i)->channel == this)
 889                 {
 890                         if (((*i)->uc_modes & UCMODE_OP) > 0)
 891                         {
 892                                 return "@";
 893                         }
 894                         if (((*i)->uc_modes & UCMODE_HOP) > 0)
 895                         {
 896                                 return "%";
 897                         }
 898                         if (((*i)->uc_modes & UCMODE_VOICE) > 0)
 899                         {
 900                                 return "+";
 901                         }
 902                         return "";
 903                 }
 904         }
 905         return "";
 906 }
 907
 908
 909 int chanrec::GetStatusFlags(userrec *user)
 910 {
 911         for (std::vector<ucrec*>::const_iterator i = user->chans.begin(); i != user->chans.end(); i++)
 912         {
 913                 if ((*i)->channel == this)
 914                 {
 915                         return (*i)->uc_modes;
 916                 }
 917         }
 918         return 0;
 919 }
 920
 921
 922
 923 int chanrec::GetStatus(userrec *user)
 924 {
 925         if (is_uline(user->server))
 926                 return STATUS_OP;
 927
 928         for (std::vector<ucrec*>::const_iterator i = user->chans.begin(); i != user->chans.end(); i++)
 929         {
 930                 if ((*i)->channel == this)
 931                 {
 932                         if (((*i)->uc_modes & UCMODE_OP) > 0)
 933                         {
 934                                 return STATUS_OP;
 935                         }
 936                         if (((*i)->uc_modes & UCMODE_HOP) > 0)
 937                         {
 938                                 return STATUS_HOP;
 939                         }
 940                         if (((*i)->uc_modes & UCMODE_VOICE) > 0)
 941                         {
 942                                 return STATUS_VOICE;
 943                         }
 944                         return STATUS_NORMAL;
 945                 }
 946         }
 947         return STATUS_NORMAL;
 948 }
 949
 950