src/users.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 #include "configreader.h"
  18 #include "channels.h"
  19 #include "users.h"
  20 #include "inspircd.h"
  21 #include <stdarg.h>
  22 #include "socketengine.h"
  23 #include "wildcard.h"
  24 #include "xline.h"
  25 #include "cull_list.h"
  26
  27 static unsigned long already_sent[MAX_DESCRIPTORS] = {0};
  28
  29 /* XXX: Used for speeding up WriteCommon operations */
  30 unsigned long uniq_id = 0;
  31
  32 bool InitTypes(ServerConfig* conf, const char* tag)
  33 {
  34         if (conf->opertypes.size())
  35         {
  36                 conf->GetInstance()->Log(DEBUG,"Currently %d items to clear",conf->opertypes.size());
  37                 for (opertype_t::iterator n = conf->opertypes.begin(); n != conf->opertypes.end(); n++)
  38                 {
  39                         conf->GetInstance()->Log(DEBUG,"Clear item");
  40                         if (n->second)
  41                                 delete[] n->second;
  42                 }
  43         }
  44
  45         conf->opertypes.clear();
  46         return true;
  47 }
  48
  49 bool InitClasses(ServerConfig* conf, const char* tag)
  50 {
  51         if (conf->operclass.size())
  52         {
  53                 for (operclass_t::iterator n = conf->operclass.begin(); n != conf->operclass.end(); n++)
  54                 {
  55                         if (n->second)
  56                                 delete[] n->second;
  57                 }
  58         }
  59
  60         conf->operclass.clear();
  61         return true;
  62 }
  63
  64 bool DoType(ServerConfig* conf, const char* tag, char** entries, void** values, int* types)
  65 {
  66         char* TypeName = (char*)values[0];
  67         char* Classes = (char*)values[1];
  68
  69         conf->opertypes[TypeName] = strdup(Classes);
  70         conf->GetInstance()->Log(DEBUG,"Read oper TYPE '%s' with classes '%s'",TypeName,Classes);
  71         return true;
  72 }
  73
  74 bool DoClass(ServerConfig* conf, const char* tag, char** entries, void** values, int* types)
  75 {
  76         char* ClassName = (char*)values[0];
  77         char* CommandList = (char*)values[1];
  78
  79         conf->operclass[ClassName] = strdup(CommandList);
  80         conf->GetInstance()->Log(DEBUG,"Read oper CLASS '%s' with commands '%s'",ClassName,CommandList);
  81         return true;
  82 }
  83
  84 bool DoneClassesAndTypes(ServerConfig* conf, const char* tag)
  85 {
  86         return true;
  87 }
  88
  89 std::string userrec::ProcessNoticeMasks(const char *sm)
  90 {
  91         bool adding = true, oldadding = false;
  92         const char *c = sm;
  93         std::string output;
  94
  95         ServerInstance->Log(DEBUG,"Process notice masks");
  96
  97         while (c && *c)
  98         {
  99                 ServerInstance->Log(DEBUG,"Process notice mask %c",*c);
 100
 101                 switch (*c)
 102                 {
 103                         case '+':
 104                                 adding = true;
 105                         break;
 106                         case '-':
 107                                 adding = false;
 108                         break;
 109                         case '*':
 110                                 for (unsigned char d = 'A'; d <= 'z'; d++)
 111                                 {
 112                                         if (ServerInstance->SNO->IsEnabled(d))
 113                                         {
 114                                                 if ((!IsNoticeMaskSet(d) && adding) || (IsNoticeMaskSet(d) && !adding))
 115                                                 {
 116                                                         if ((oldadding != adding) || (!output.length()))
 117                                                                 output += (adding ? '+' : '-');
 118
 119                                                         this->SetNoticeMask(d, adding);
 120
 121                                                         output += d;
 122                                                 }
 123                                         }
 124                                         oldadding = adding;
 125                                 }
 126                         break;
 127                         default:
 128                                 if ((*c >= 'A') && (*c <= 'z') && (ServerInstance->SNO->IsEnabled(*c)))
 129                                 {
 130                                         if ((!IsNoticeMaskSet(*c) && adding) || (IsNoticeMaskSet(*c) && !adding))
 131                                         {
 132                                                 if ((oldadding != adding) || (!output.length()))
 133                                                         output += (adding ? '+' : '-');
 134
 135                                                 this->SetNoticeMask(*c, adding);
 136
 137                                                 output += *c;
 138                                         }
 139                                 }
 140                                 oldadding = adding;
 141                         break;
 142                 }
 143
 144                 *c++;
 145         }
 146
 147         return output;
 148 }
 149
 150 void userrec::StartDNSLookup()
 151 {
 152         ServerInstance->Log(DEBUG,"Commencing reverse lookup");
 153         try
 154         {
 155                 ServerInstance->Log(DEBUG,"Passing instance: %08x",this->ServerInstance);
 156                 res_reverse = new UserResolver(this->ServerInstance, this, this->GetIPString(), DNS_QUERY_REVERSE);
 157                 this->ServerInstance->AddResolver(res_reverse);
 158         }
 159         catch (ModuleException& e)
 160         {
 161                 ServerInstance->Log(DEBUG,"Error in resolver: %s",e.GetReason());
 162         }
 163 }
 164
 165 UserResolver::UserResolver(InspIRCd* Instance, userrec* user, std::string to_resolve, QueryType qt) :
 166         Resolver(Instance, to_resolve, qt), bound_user(user)
 167 {
 168         this->fwd = (qt == DNS_QUERY_A || qt == DNS_QUERY_AAAA);
 169         this->bound_fd = user->GetFd();
 170 }
 171
 172 void UserResolver::OnLookupComplete(const std::string &result)
 173 {
 174         if ((!this->fwd) && (ServerInstance->SE->GetRef(this->bound_fd) == this->bound_user))
 175         {
 176                 ServerInstance->Log(DEBUG,"Commencing forward lookup");
 177                 this->bound_user->stored_host = result;
 178                 try
 179                 {
 180                         /* Check we didnt time out */
 181                         if (this->bound_user->registered != REG_ALL)
 182                         {
 183 #ifdef IPV6
 184                                 const char *ip = this->bound_user->GetIPString();
 185                                 bound_user->res_forward = new UserResolver(this->ServerInstance, this->bound_user, result, (strstr(ip,"0::ffff:") == ip ? DNS_QUERY_A : DNS_QUERY_AAAA));
 186 #else
 187                                 bound_user->res_forward = new UserResolver(this->ServerInstance, this->bound_user, result, DNS_QUERY_A);
 188 #endif
 189                                 this->ServerInstance->AddResolver(bound_user->res_forward);
 190                         }
 191                 }
 192                 catch (ModuleException& e)
 193                 {
 194                         ServerInstance->Log(DEBUG,"Error in resolver: %s",e.GetReason());
 195                 }
 196         }
 197         else if ((this->fwd) && (ServerInstance->SE->GetRef(this->bound_fd) == this->bound_user))
 198         {
 199                 /* Both lookups completed */
 200                 std::string result2 = "0::ffff:";
 201                 result2.append(result);
 202                 if (this->bound_user->GetIPString() == result || this->bound_user->GetIPString() == result2)
 203                 {
 204                         std::string hostname = this->bound_user->stored_host;
 205                         if (hostname.length() < 65)
 206                         {
 207                                 /* Check we didnt time out */
 208                                 if (this->bound_user->registered != REG_ALL)
 209                                 {
 210                                         /* Hostnames starting with : are not a good thing (tm) */
 211                                         if (*(hostname.c_str()) == ':')
 212                                                 hostname = "0" + hostname;
 213
 214                                         this->bound_user->WriteServ("NOTICE Auth :*** Found your hostname (%s)", hostname.c_str());
 215                                         this->bound_user->dns_done = true;
 216                                         strlcpy(this->bound_user->dhost, hostname.c_str(),64);
 217                                         strlcpy(this->bound_user->host, hostname.c_str(),64);
 218                                 }
 219                         }
 220                         else
 221                         {
 222                                 this->bound_user->WriteServ("NOTICE Auth :*** Your hostname is longer than the maximum of 64 characters, using your IP address (%s) instead.", this->bound_user->GetIPString());
 223                         }
 224                 }
 225                 else
 226                 {
 227                         this->bound_user->WriteServ("NOTICE Auth :*** Your hostname does not match up with your IP address. Sorry, using your IP address (%s) instead.", this->bound_user->GetIPString());
 228                 }
 229         }
 230 }
 231
 232 void UserResolver::OnError(ResolverError e, const std::string &errormessage)
 233 {
 234         if (ServerInstance->SE->GetRef(this->bound_fd) == this->bound_user)
 235         {
 236                 /* Error message here */
 237                 this->bound_user->WriteServ("NOTICE Auth :*** Could not resolve your hostname, using your IP address (%s) instead.", this->bound_user->GetIPString());
 238                 this->bound_user->dns_done = true;
 239         }
 240 }
 241
 242
 243 bool userrec::IsNoticeMaskSet(unsigned char sm)
 244 {
 245         return (snomasks[sm-65]);
 246 }
 247
 248 void userrec::SetNoticeMask(unsigned char sm, bool value)
 249 {
 250         snomasks[sm-65] = value;
 251 }
 252
 253 const char* userrec::FormatNoticeMasks()
 254 {
 255         static char data[MAXBUF];
 256         int offset = 0;
 257
 258         for (int n = 0; n < 64; n++)
 259         {
 260                 if (snomasks[n])
 261                         data[offset++] = n+65;
 262         }
 263
 264         data[offset] = 0;
 265         return data;
 266 }
 267
 268
 269
 270 bool userrec::IsModeSet(unsigned char m)
 271 {
 272         return (modes[m-65]);
 273 }
 274
 275 void userrec::SetMode(unsigned char m, bool value)
 276 {
 277         modes[m-65] = value;
 278 }
 279
 280 const char* userrec::FormatModes()
 281 {
 282         static char data[MAXBUF];
 283         int offset = 0;
 284         for (int n = 0; n < 64; n++)
 285         {
 286                 if (modes[n])
 287                         data[offset++] = n+65;
 288         }
 289         data[offset] = 0;
 290         return data;
 291 }
 292
 293 userrec::userrec(InspIRCd* Instance) : ServerInstance(Instance)
 294 {
 295         ServerInstance->Log(DEBUG,"userrec::userrec(): Instance: %08x",ServerInstance);
 296         // the PROPER way to do it, AVOID bzero at *ALL* costs
 297         *password = *nick = *ident = *host = *dhost = *fullname = *awaymsg = *oper = 0;
 298         server = (char*)Instance->FindServerNamePtr(Instance->Config->ServerName);
 299         reset_due = ServerInstance->Time();
 300         age = ServerInstance->Time(true);
 301         lines_in = lastping = signon = idle_lastmsg = nping = registered = 0;
 302         ChannelCount = timeout = flood = bytes_in = bytes_out = cmds_in = cmds_out = 0;
 303         haspassed = dns_done = false;
 304         fd = -1;
 305         recvq = "";
 306         sendq = "";
 307         WriteError = "";
 308         res_forward = res_reverse = NULL;
 309         ip = NULL;
 310         chans.clear();
 311         invites.clear();
 312         chans.resize(MAXCHANS);
 313         memset(modes,0,sizeof(modes));
 314         memset(snomasks,0,sizeof(snomasks));
 315
 316         for (unsigned int n = 0; n < MAXCHANS; n++)
 317         {
 318                 chans[n] = new ucrec();
 319                 chans[n]->channel = NULL;
 320                 chans[n]->uc_modes = 0;
 321         }
 322 }
 323
 324 userrec::~userrec()
 325 {
 326         for (std::vector<ucrec*>::iterator n = chans.begin(); n != chans.end(); n++)
 327         {
 328                 ucrec* x = (ucrec*)*n;
 329                 delete x;
 330         }
 331
 332         if (ip)
 333         {
 334                 if (this->GetProtocolFamily() == AF_INET)
 335                 {
 336                         delete (sockaddr_in*)ip;
 337                 }
 338 #ifdef SUPPORT_IP6LINKS
 339                 else
 340                 {
 341                         delete (sockaddr_in6*)ip;
 342                 }
 343 #endif
 344         }
 345 }
 346
 347 char* userrec::MakeHost()
 348 {
 349         static char nhost[MAXBUF];
 350         /* This is much faster than snprintf */
 351         char* t = nhost;
 352         for(char* n = ident; *n; n++)
 353                 *t++ = *n;
 354         *t++ = '@';
 355         for(char* n = host; *n; n++)
 356                 *t++ = *n;
 357         *t = 0;
 358         return nhost;
 359 }
 360
 361 char* userrec::MakeHostIP()
 362 {
 363         static char ihost[MAXBUF];
 364         /* This is much faster than snprintf */
 365         char* t = ihost;
 366         for(char* n = ident; *n; n++)
 367                 *t++ = *n;
 368         *t++ = '@';
 369         for(const char* n = this->GetIPString(); *n; n++)
 370                 *t++ = *n;
 371         *t = 0;
 372         return ihost;
 373 }
 374
 375 void userrec::CloseSocket()
 376 {
 377         shutdown(this->fd,2);
 378         close(this->fd);
 379 }
 380
 381 char* userrec::GetFullHost()
 382 {
 383         static char result[MAXBUF];
 384         char* t = result;
 385         for(char* n = nick; *n; n++)
 386                 *t++ = *n;
 387         *t++ = '!';
 388         for(char* n = ident; *n; n++)
 389                 *t++ = *n;
 390         *t++ = '@';
 391         for(char* n = dhost; *n; n++)
 392                 *t++ = *n;
 393         *t = 0;
 394         return result;
 395 }
 396
 397 char* userrec::MakeWildHost()
 398 {
 399         static char nresult[MAXBUF];
 400         char* t = nresult;
 401         *t++ = '*';     *t++ = '!';
 402         *t++ = '*';     *t++ = '@';
 403         for(char* n = dhost; *n; n++)
 404                 *t++ = *n;
 405         *t = 0;
 406         return nresult;
 407 }
 408
 409 int userrec::ReadData(void* buffer, size_t size)
 410 {
 411         if (IS_LOCAL(this))
 412         {
 413                 return read(this->fd, buffer, size);
 414         }
 415         else
 416                 return 0;
 417 }
 418
 419
 420 char* userrec::GetFullRealHost()
 421 {
 422         static char fresult[MAXBUF];
 423         char* t = fresult;
 424         for(char* n = nick; *n; n++)
 425                 *t++ = *n;
 426         *t++ = '!';
 427         for(char* n = ident; *n; n++)
 428                 *t++ = *n;
 429         *t++ = '@';
 430         for(char* n = host; *n; n++)
 431                 *t++ = *n;
 432         *t = 0;
 433         return fresult;
 434 }
 435
 436 bool userrec::IsInvited(irc::string &channel)
 437 {
 438         for (InvitedList::iterator i = invites.begin(); i != invites.end(); i++)
 439         {
 440                 irc::string compare = i->channel;
 441
 442                 if (compare == channel)
 443                 {
 444                         return true;
 445                 }
 446         }
 447         return false;
 448 }
 449
 450 InvitedList* userrec::GetInviteList()
 451 {
 452         return &invites;
 453 }
 454
 455 void userrec::InviteTo(irc::string &channel)
 456 {
 457         Invited i;
 458         i.channel = channel;
 459         invites.push_back(i);
 460 }
 461
 462 void userrec::RemoveInvite(irc::string &channel)
 463 {
 464         ServerInstance->Log(DEBUG,"Removing invites");
 465
 466         if (invites.size())
 467         {
 468                 for (InvitedList::iterator i = invites.begin(); i != invites.end(); i++)
 469                 {
 470                         irc::string compare = i->channel;
 471
 472                         if (compare == channel)
 473                         {
 474                                 invites.erase(i);
 475                                 return;
 476                         }
 477                 }
 478         }
 479 }
 480
 481 bool userrec::HasPermission(const std::string &command)
 482 {
 483         char* mycmd;
 484         char* savept;
 485         char* savept2;
 486
 487         /*
 488          * users on remote servers can completely bypass all permissions based checks.
 489          * This prevents desyncs when one server has different type/class tags to another.
 490          * That having been said, this does open things up to the possibility of source changes
 491          * allowing remote kills, etc - but if they have access to the src, they most likely have
 492          * access to the conf - so it's an end to a means either way.
 493          */
 494         if (!IS_LOCAL(this))
 495                 return true;
 496
 497         // are they even an oper at all?
 498         if (*this->oper)
 499         {
 500                 opertype_t::iterator iter_opertype = ServerInstance->Config->opertypes.find(this->oper);
 501                 if (iter_opertype != ServerInstance->Config->opertypes.end())
 502                 {
 503                         char* Classes = strdup(iter_opertype->second);
 504                         char* myclass = strtok_r(Classes," ",&savept);
 505                         while (myclass)
 506                         {
 507                                 operclass_t::iterator iter_operclass = ServerInstance->Config->operclass.find(myclass);
 508                                 if (iter_operclass != ServerInstance->Config->operclass.end())
 509                                 {
 510                                         char* CommandList = strdup(iter_operclass->second);
 511                                         mycmd = strtok_r(CommandList," ",&savept2);
 512                                         while (mycmd)
 513                                         {
 514                                                 if ((!strcasecmp(mycmd,command.c_str())) || (*mycmd == '*'))
 515                                                 {
 516                                                         free(Classes);
 517                                                         free(CommandList);
 518                                                         return true;
 519                                                 }
 520                                                 mycmd = strtok_r(NULL," ",&savept2);
 521                                         }
 522                                         free(CommandList);
 523                                 }
 524                                 myclass = strtok_r(NULL," ",&savept);
 525                         }
 526                         free(Classes);
 527                 }
 528         }
 529         return false;
 530 }
 531
 532 /** NOTE: We cannot pass a const reference to this method.
 533  * The string is changed by the workings of the method,
 534  * so that if we pass const ref, we end up copying it to
 535  * something we can change anyway. Makes sense to just let
 536  * the compiler do that copy for us.
 537  */
 538 bool userrec::AddBuffer(std::string a)
 539 {
 540         try
 541         {
 542                 std::string::size_type i = a.rfind('\r');
 543
 544                 while (i != std::string::npos)
 545                 {
 546                         a.erase(i, 1);
 547                         i = a.rfind('\r');
 548                 }
 549
 550                 if (a.length())
 551                         recvq.append(a);
 552
 553                 if (recvq.length() > (unsigned)this->recvqmax)
 554                 {
 555                         this->SetWriteError("RecvQ exceeded");
 556                         ServerInstance->WriteOpers("*** User %s RecvQ of %d exceeds connect class maximum of %d",this->nick,recvq.length(),this->recvqmax);
 557                         return false;
 558                 }
 559
 560                 return true;
 561         }
 562
 563         catch (...)
 564         {
 565                 ServerInstance->Log(DEBUG,"Exception in userrec::AddBuffer()");
 566                 return false;
 567         }
 568 }
 569
 570 bool userrec::BufferIsReady()
 571 {
 572         return (recvq.find('\n') != std::string::npos);
 573 }
 574
 575 void userrec::ClearBuffer()
 576 {
 577         recvq = "";
 578 }
 579
 580 std::string userrec::GetBuffer()
 581 {
 582         try
 583         {
 584                 if (!recvq.length())
 585                         return "";
 586
 587                 /* Strip any leading \r or \n off the string.
 588                  * Usually there are only one or two of these,
 589                  * so its is computationally cheap to do.
 590                  */
 591                 while ((*recvq.begin() == '\r') || (*recvq.begin() == '\n'))
 592                         recvq.erase(recvq.begin());
 593
 594                 for (std::string::iterator x = recvq.begin(); x != recvq.end(); x++)
 595                 {
 596                         /* Find the first complete line, return it as the
 597                          * result, and leave the recvq as whats left
 598                          */
 599                         if (*x == '\n')
 600                         {
 601                                 std::string ret = std::string(recvq.begin(), x);
 602                                 recvq.erase(recvq.begin(), x + 1);
 603                                 return ret;
 604                         }
 605                 }
 606                 return "";
 607         }
 608
 609         catch (...)
 610         {
 611                 ServerInstance->Log(DEBUG,"Exception in userrec::GetBuffer()");
 612                 return "";
 613         }
 614 }
 615
 616 void userrec::AddWriteBuf(const std::string &data)
 617 {
 618         if (*this->GetWriteError())
 619                 return;
 620
 621         if (sendq.length() + data.length() > (unsigned)this->sendqmax)
 622         {
 623                 /*
 624                  * Fix by brain - Set the error text BEFORE calling writeopers, because
 625                  * if we dont it'll recursively  call here over and over again trying
 626                  * to repeatedly add the text to the sendq!
 627                  */
 628                 this->SetWriteError("SendQ exceeded");
 629                 ServerInstance->WriteOpers("*** User %s SendQ of %d exceeds connect class maximum of %d",this->nick,sendq.length() + data.length(),this->sendqmax);
 630                 return;
 631         }
 632
 633         try
 634         {
 635                 if (data.length() > 512)
 636                 {
 637                         std::string newdata(data);
 638                         newdata.resize(510);
 639                         newdata.append("\r\n");
 640                         sendq.append(newdata);
 641                 }
 642                 else
 643                 {
 644                         sendq.append(data);
 645                 }
 646         }
 647         catch (...)
 648         {
 649                 this->SetWriteError("SendQ exceeded");
 650                 ServerInstance->WriteOpers("*** User %s SendQ got an exception",this->nick);
 651         }
 652 }
 653
 654 // send AS MUCH OF THE USERS SENDQ as we are able to (might not be all of it)
 655 void userrec::FlushWriteBuf()
 656 {
 657         try
 658         {
 659                 if ((this->fd == FD_MAGIC_NUMBER) || (*this->GetWriteError()))
 660                 {
 661                         sendq = "";
 662                 }
 663                 if ((sendq.length()) && (this->fd != FD_MAGIC_NUMBER))
 664                 {
 665                         int old_sendq_length = sendq.length();
 666                         const char* tb = this->sendq.c_str();
 667                         int n_sent = write(this->fd,tb,this->sendq.length());
 668                         if (n_sent == -1)
 669                         {
 670                                 if (errno == EAGAIN)
 671                                 {
 672                                         ServerInstance->Log(DEBUG,"EAGAIN, want write");
 673                                         this->ServerInstance->SE->WantWrite(this);
 674                                 }
 675                                 else
 676                                         this->SetWriteError(strerror(errno));
 677                         }
 678                         else
 679                         {
 680                                 /*ServerInstance->Log(DEBUG,"Wrote: %d of %d: %s", n_sent, old_sendq_length, sendq.substr(0, n_sent).c_str());*/
 681                                 // advance the queue
 682                                 tb += n_sent;
 683                                 this->sendq = tb;
 684                                 // update the user's stats counters
 685                                 this->bytes_out += n_sent;
 686                                 this->cmds_out++;
 687                                 if (n_sent != old_sendq_length)
 688                                 {
 689                                         ServerInstance->Log(DEBUG,"Not all written, want write");
 690                                         this->ServerInstance->SE->WantWrite(this);
 691                                 }
 692                         }
 693                 }
 694         }
 695
 696         catch (...)
 697         {
 698                 ServerInstance->Log(DEBUG,"Exception in userrec::FlushWriteBuf()");
 699         }
 700 }
 701
 702 void userrec::SetWriteError(const std::string &error)
 703 {
 704         try
 705         {
 706                 ServerInstance->Log(DEBUG,"SetWriteError: %s",error.c_str());
 707                 // don't try to set the error twice, its already set take the first string.
 708                 if (!this->WriteError.length())
 709                 {
 710                         ServerInstance->Log(DEBUG,"Setting error string for %s to '%s'",this->nick,error.c_str());
 711                         this->WriteError = error;
 712                 }
 713         }
 714
 715         catch (...)
 716         {
 717                 ServerInstance->Log(DEBUG,"Exception in userrec::SetWriteError()");
 718         }
 719 }
 720
 721 const char* userrec::GetWriteError()
 722 {
 723         return this->WriteError.c_str();
 724 }
 725
 726 void userrec::Oper(const std::string &opertype)
 727 {
 728         try
 729         {
 730                 this->modes[UM_OPERATOR] = 1;
 731                 this->WriteServ("MODE %s :+o", this->nick);
 732                 FOREACH_MOD(I_OnOper, OnOper(this, opertype));
 733                 ServerInstance->Log(DEFAULT,"OPER: %s!%s@%s opered as type: %s", this->nick, this->ident, this->host, opertype.c_str());
 734                 strlcpy(this->oper, opertype.c_str(), NICKMAX - 1);
 735                 ServerInstance->all_opers.push_back(this);
 736                 FOREACH_MOD(I_OnPostOper,OnPostOper(this, opertype));
 737         }
 738
 739         catch (...)
 740         {
 741                 ServerInstance->Log(DEBUG,"Exception in userrec::Oper()");
 742         }
 743 }
 744
 745 void userrec::UnOper()
 746 {
 747         try
 748         {
 749                 if (*this->oper)
 750                 {
 751                         *this->oper = 0;
 752                         this->modes[UM_OPERATOR] = 0;
 753                         for (std::vector<userrec*>::iterator a = ServerInstance->all_opers.begin(); a < ServerInstance->all_opers.end(); a++)
 754                         {
 755                                 if (*a == this)
 756                                 {
 757                                         ServerInstance->Log(DEBUG,"Oper removed from optimization list");
 758                                         ServerInstance->all_opers.erase(a);
 759                                         return;
 760                                 }
 761                         }
 762                 }
 763         }
 764
 765         catch (...)
 766         {
 767                 ServerInstance->Log(DEBUG,"Exception in userrec::UnOper()");
 768         }
 769 }
 770
 771 void userrec::QuitUser(InspIRCd* Instance, userrec *user, const std::string &quitreason)
 772 {
 773         user_hash::iterator iter = Instance->clientlist.find(user->nick);
 774         std::string reason = quitreason;
 775
 776         if (reason.length() > MAXQUIT - 1)
 777                 reason.resize(MAXQUIT - 1);
 778
 779         if (IS_LOCAL(user))
 780                 user->Write("ERROR :Closing link (%s@%s) [%s]",user->ident,user->host,reason.c_str());
 781
 782         if (user->registered == REG_ALL)
 783         {
 784                 user->PurgeEmptyChannels();
 785                 FOREACH_MOD_I(Instance,I_OnUserQuit,OnUserQuit(user,reason));
 786                 user->WriteCommonExcept("QUIT :%s",reason.c_str());
 787         }
 788
 789         if (IS_LOCAL(user))
 790                 user->FlushWriteBuf();
 791
 792         FOREACH_MOD_I(Instance,I_OnUserDisconnect,OnUserDisconnect(user));
 793
 794         if (IS_LOCAL(user))
 795         {
 796                 if (Instance->Config->GetIOHook(user->GetPort()))
 797                 {
 798                         try
 799                         {
 800                                 Instance->Config->GetIOHook(user->GetPort())->OnRawSocketClose(user->fd);
 801                         }
 802                         catch (ModuleException& modexcept)
 803                         {
 804                                 Instance->Log(DEBUG,"Module exception cought: %s",modexcept.GetReason());
 805                         }
 806                 }
 807
 808                 Instance->SE->DelFd(user);
 809                 user->CloseSocket();
 810         }
 811
 812         /*
 813          * this must come before the ServerInstance->SNO->WriteToSnoMaskso that it doesnt try to fill their buffer with anything
 814          * if they were an oper with +sn +qQ.
 815          */
 816         if (user->registered == REG_ALL)
 817         {
 818                 if (IS_LOCAL(user))
 819                         Instance->SNO->WriteToSnoMask('q',"Client exiting: %s!%s@%s [%s]",user->nick,user->ident,user->host,reason.c_str());
 820                 else
 821                         Instance->SNO->WriteToSnoMask('Q',"Client exiting on server %s: %s!%s@%s [%s]",user->server,user->nick,user->ident,user->host,reason.c_str());
 822                 user->AddToWhoWas();
 823         }
 824
 825         if (iter != Instance->clientlist.end())
 826         {
 827                 Instance->Log(DEBUG,"deleting user hash value %lx",(unsigned long)user);
 828                 if (IS_LOCAL(user))
 829                 {
 830                         if (find(Instance->local_users.begin(),Instance->local_users.end(),user) != Instance->local_users.end())
 831                                 Instance->local_users.erase(find(Instance->local_users.begin(),Instance->local_users.end(),user));
 832                 }
 833                 Instance->clientlist.erase(iter);
 834                 DELETE(user);
 835         }
 836 }
 837
 838 namespace irc
 839 {
 840         namespace whowas
 841         {
 842
 843                 WhoWasGroup::WhoWasGroup(userrec* user) : host(NULL), dhost(NULL), ident(NULL), server(NULL), gecos(NULL), signon(user->signon)
 844                 {
 845                         this->host = strdup(user->host);
 846                         this->dhost = strdup(user->dhost);
 847                         this->ident = strdup(user->ident);
 848                         this->server = user->server;
 849                         this->gecos = strdup(user->fullname);
 850                 }
 851
 852                 WhoWasGroup::~WhoWasGroup()
 853                 {
 854                         if (host)
 855                                 free(host);
 856                         if (dhost)
 857                                 free(dhost);
 858                         if (ident)
 859                                 free(ident);
 860                         if (gecos)
 861                                 free(gecos);
 862                 }
 863
 864                 /* every hour, run this function which removes all entries older than Config->WhoWasMaxKeep */
 865                 void MaintainWhoWas(InspIRCd* ServerInstance, time_t t)
 866                 {
 867                         for (whowas_users::iterator iter = ServerInstance->whowas.begin(); iter != ServerInstance->whowas.end(); iter++)
 868                         {
 869                                 whowas_set* n = (whowas_set*)iter->second;
 870                                 if (n->size())
 871                                 {
 872                                         while ((n->begin() != n->end()) && ((*n->begin())->signon < t - ServerInstance->Config->WhoWasMaxKeep))
 873                                         {
 874                                                 WhoWasGroup *a = *(n->begin());
 875                                                 DELETE(a);
 876                                                 n->erase(n->begin());
 877                                         }
 878                                 }
 879                         }
 880                 }
 881                 /* on rehash, refactor maps according to new conf values */
 882                 void PruneWhoWas(InspIRCd* ServerInstance, time_t t)
 883                 {
 884                         /* config values */
 885                         int groupsize = ServerInstance->Config->WhoWasGroupSize;
 886                         int maxgroups = ServerInstance->Config->WhoWasMaxGroups;
 887                         int maxkeep =   ServerInstance->Config->WhoWasMaxKeep;
 888
 889                         int groupcount = ServerInstance->whowas.size();
 890                         /* iterate whowas_fifo oldest first */
 891                         for (whowas_users_fifo::iterator iter = ServerInstance->whowas_fifo.begin(); iter != ServerInstance->whowas_fifo.end(); iter++)
 892                         {
 893                                 /** prune all groups that has expired due to new maxkeep time and
 894                                  *  also any group number higher than new maxgroups. The oldest are
 895                                  *  removed first due to iteration over whowas_fifo
 896                                  */
 897                                 if (groupcount > maxgroups || iter->first < t - maxkeep)
 898                                 {
 899                                         whowas_set* n = (whowas_set*)ServerInstance->whowas.find(iter->second)->second;
 900                                         if (n->size())
 901                                         {
 902                                                 while (n->begin() != n->end())
 903                                                 {
 904                                                         WhoWasGroup *a = *(n->begin());
 905                                                         DELETE(a);
 906                                                         n->erase(n->begin());
 907                                                 }
 908                                         }
 909                                         ServerInstance->whowas.erase(iter->second);
 910                                         ServerInstance->whowas_fifo.erase(iter->first);
 911                                 }
 912                                 else {
 913                                         /* also trim individual groupsizes in case groupsize should have been lowered */
 914                                         whowas_set* n = (whowas_set*)ServerInstance->whowas.find(iter->second)->second;
 915                                         if (n->size())
 916                                         {
 917                                                 int nickcount = n->size();
 918                                                 while (n->begin() != n->end() && nickcount > groupsize)
 919                                                 {
 920                                                         WhoWasGroup *a = *(n->begin());
 921                                                         DELETE(a);
 922                                                         n->erase(n->begin());
 923                                                         nickcount--;
 924                                                 }
 925                                         }
 926                                 }
 927                                 groupcount--;
 928                         }
 929                 }
 930         };
 931 };
 932
 933 /* adds or updates an entry in the whowas list */
 934 void userrec::AddToWhoWas()
 935 {
 936         /* if whowas disabled */
 937         if (ServerInstance->Config->WhoWasGroupSize == 0 || ServerInstance->Config->WhoWasMaxGroups == 0)
 938         {
 939                 return;
 940         }
 941
 942         irc::whowas::whowas_users::iterator iter = ServerInstance->whowas.find(this->nick);
 943
 944         ServerInstance->Log(DEBUG,"Add to whowas lists");
 945
 946         if (iter == ServerInstance->whowas.end())
 947         {
 948                 ServerInstance->Log(DEBUG,"Adding new whowas set for %s",this->nick);
 949                 irc::whowas::whowas_set* n = new irc::whowas::whowas_set;
 950                 irc::whowas::WhoWasGroup *a = new irc::whowas::WhoWasGroup(this);
 951                 n->push_back(a);
 952                 ServerInstance->whowas[this->nick] = n;
 953                 ServerInstance->whowas_fifo[ServerInstance->Time()] = this->nick;
 954                 if ((int)(ServerInstance->whowas.size()) > ServerInstance->Config->WhoWasMaxGroups)
 955                 {
 956                         ServerInstance->Log(DEBUG,"Maxgroups of %d reached deleting oldest group '%s'",ServerInstance->Config->WhoWasMaxGroups, ServerInstance->whowas_fifo.begin()->second.c_str());
 957                         ServerInstance->whowas.erase(ServerInstance->whowas_fifo.begin()->second);
 958                         ServerInstance->whowas_fifo.erase(ServerInstance->whowas_fifo.begin());
 959                 }
 960         }
 961         else
 962         {
 963                 irc::whowas::whowas_set* group = (irc::whowas::whowas_set*)iter->second;
 964
 965                 ServerInstance->Log(DEBUG,"Using existing whowas group for %s",this->nick);
 966
 967                 if ((int)(group->size()) >= ServerInstance->Config->WhoWasGroupSize)
 968                 {
 969                         ServerInstance->Log(DEBUG,"Trimming existing group '%s' to %d entries",this->nick, ServerInstance->Config->WhoWasGroupSize);
 970                         irc::whowas::WhoWasGroup *a = (irc::whowas::WhoWasGroup*)*(group->begin());
 971                         DELETE(a);
 972                         group->pop_front();
 973                 }
 974
 975                 irc::whowas::WhoWasGroup *a = new irc::whowas::WhoWasGroup(this);
 976                 group->push_back(a);
 977         }
 978 }
 979
 980 /* add a client connection to the sockets list */
 981 void userrec::AddClient(InspIRCd* Instance, int socket, int port, bool iscached, insp_inaddr ip)
 982 {
 983         std::string tempnick = ConvToStr(socket) + "-unknown";
 984         user_hash::iterator iter = Instance->clientlist.find(tempnick);
 985         const char *ipaddr = insp_ntoa(ip);
 986         userrec* New;
 987         int j = 0;
 988
 989         /*
 990          * fix by brain.
 991          * as these nicknames are 'RFC impossible', we can be sure nobody is going to be
 992          * using one as a registered connection. As they are per fd, we can also safely assume
 993          * that we wont have collisions. Therefore, if the nick exists in the list, its only
 994          * used by a dead socket, erase the iterator so that the new client may reclaim it.
 995          * this was probably the cause of 'server ignores me when i hammer it with reconnects'
 996          * issue in earlier alphas/betas
 997          */
 998         if (iter != Instance->clientlist.end())
 999         {
1000                 userrec* goner = iter->second;
1001                 DELETE(goner);
1002                 Instance->clientlist.erase(iter);
1003         }
1004
1005         Instance->Log(DEBUG,"AddClient: %d %d %s",socket,port,ipaddr);
1006
1007         New = new userrec(Instance);
1008         Instance->clientlist[tempnick] = New;
1009         New->fd = socket;
1010         strlcpy(New->nick,tempnick.c_str(),NICKMAX-1);
1011
1012         New->server = Instance->FindServerNamePtr(Instance->Config->ServerName);
1013         /* We don't need range checking here, we KNOW 'unknown\0' will fit into the ident field. */
1014         strcpy(New->ident, "unknown");
1015
1016         New->registered = REG_NONE;
1017         New->signon = Instance->Time() + Instance->Config->dns_timeout;
1018         New->lastping = 1;
1019
1020         Instance->Log(DEBUG,"Setting socket addresses");
1021         New->SetSockAddr(AF_FAMILY, ipaddr, port);
1022         Instance->Log(DEBUG,"Socket addresses set.");
1023
1024         /* Smarter than your average bear^H^H^H^Hset of strlcpys. */
1025         for (const char* temp = New->GetIPString(); *temp && j < 64; temp++, j++)
1026                 New->dhost[j] = New->host[j] = *temp;
1027         New->dhost[j] = New->host[j] = 0;
1028
1029         Instance->Log(DEBUG,"Hosts set.");
1030
1031         // set the registration timeout for this user
1032         unsigned long class_regtimeout = 90;
1033         int class_flood = 0;
1034         long class_threshold = 5;
1035         long class_sqmax = 262144;      // 256kb
1036         long class_rqmax = 4096;        // 4k
1037
1038         Instance->Log(DEBUG,"Class stuff set.");
1039
1040         for (ClassVector::iterator i = Instance->Config->Classes.begin(); i != Instance->Config->Classes.end(); i++)
1041         {
1042                 if ((i->type == CC_ALLOW) && (match(ipaddr,i->host.c_str(),true)))
1043                 {
1044                         class_regtimeout = (unsigned long)i->registration_timeout;
1045                         class_flood = i->flood;
1046                         New->pingmax = i->pingtime;
1047                         class_threshold = i->threshold;
1048                         class_sqmax = i->sendqmax;
1049                         class_rqmax = i->recvqmax;
1050                         break;
1051                 }
1052         }
1053
1054         Instance->Log(DEBUG,"nping etc set.");
1055
1056         New->nping = Instance->Time() + New->pingmax + Instance->Config->dns_timeout;
1057         New->timeout = Instance->Time() + class_regtimeout;
1058         New->flood = class_flood;
1059         New->threshold = class_threshold;
1060         New->sendqmax = class_sqmax;
1061         New->recvqmax = class_rqmax;
1062
1063         Instance->Log(DEBUG,"Push back to local users.");
1064         Instance->local_users.push_back(New);
1065
1066         Instance->Log(DEBUG,"Check softlimit: %d %d %d",Instance->local_users.size(), Instance->Config->SoftLimit, MAXCLIENTS);
1067         if ((Instance->local_users.size() > Instance->Config->SoftLimit) || (Instance->local_users.size() >= MAXCLIENTS))
1068         {
1069                 Instance->Log(DEBUG,"Check softlimit failed");
1070                 Instance->WriteOpers("*** Warning: softlimit value has been reached: %d clients", Instance->Config->SoftLimit);
1071                 userrec::QuitUser(Instance, New,"No more connections allowed");
1072                 return;
1073         }
1074
1075         Instance->Log(DEBUG,"Softlimit passed.");
1076
1077         /*
1078          * XXX -
1079          * this is done as a safety check to keep the file descriptors within range of fd_ref_table.
1080          * its a pretty big but for the moment valid assumption:
1081          * file descriptors are handed out starting at 0, and are recycled as theyre freed.
1082          * therefore if there is ever an fd over 65535, 65536 clients must be connected to the
1083          * irc server at once (or the irc server otherwise initiating this many connections, files etc)
1084          * which for the time being is a physical impossibility (even the largest networks dont have more
1085          * than about 10,000 users on ONE server!)
1086          */
1087         if ((unsigned int)socket >= MAX_DESCRIPTORS)
1088         {
1089                 userrec::QuitUser(Instance, New, "Server is full");
1090                 return;
1091         }
1092
1093         Instance->Log(DEBUG,"socket < MAX_DESCRIPTORS passed.");
1094
1095         ELine* e = Instance->XLines->matches_exception(New);
1096         if (!e)
1097         {
1098                 Instance->Log(DEBUG,"Doesnt match eline.");
1099                 ZLine* r = Instance->XLines->matches_zline(ipaddr);
1100                 if (r)
1101                 {
1102                         Instance->Log(DEBUG,"Matches zline.");
1103                         char reason[MAXBUF];
1104                         snprintf(reason,MAXBUF,"Z-Lined: %s",r->reason);
1105                         userrec::QuitUser(Instance, New, reason);
1106                         return;
1107                 }
1108                 Instance->Log(DEBUG,"Doesnt match zline.");
1109         }
1110
1111         Instance->Log(DEBUG,"Check before AddFd.");
1112
1113         if (socket > -1)
1114         {
1115                 Instance->Log(DEBUG,"Adding fd.");
1116                 if (!Instance->SE->AddFd(New))
1117                 {
1118                         Instance->Log(DEBUG,"Oops, fd already exists");
1119                         userrec::QuitUser(Instance, New, "Internal error handling connection");
1120                         return;
1121                 }
1122         }
1123
1124         New->WriteServ("NOTICE Auth :*** Looking up your hostname...");
1125 }
1126
1127 long userrec::GlobalCloneCount()
1128 {
1129         char u2[128];
1130         long x = 0;
1131         strlcpy(u2, this->GetIPString(), 64);
1132
1133         for (user_hash::const_iterator a = ServerInstance->clientlist.begin(); a != ServerInstance->clientlist.end(); a++)
1134         {
1135                 /* We have to match ip's as strings - we don't know what protocol
1136                  * a remote user may be using
1137                  */
1138                 if (strcasecmp(a->second->GetIPString(), u2) == 0)
1139                         x++;
1140         }
1141
1142         return x;
1143 }
1144
1145 long userrec::LocalCloneCount()
1146 {
1147         long x = 0;
1148         for (std::vector<userrec*>::const_iterator a = ServerInstance->local_users.begin(); a != ServerInstance->local_users.end(); a++)
1149         {
1150                 userrec* comp = *a;
1151 #ifdef IPV6
1152                 /* I dont think theres any faster way of matching two ipv6 addresses than memcmp */
1153                 in6_addr* s1 = &(((sockaddr_in6*)comp->ip)->sin6_addr);
1154                 in6_addr* s2 = &(((sockaddr_in6*)this->ip)->sin6_addr);
1155                 if (!memcmp(s1->s6_addr, s2->s6_addr, sizeof(in6_addr)))
1156                         x++;
1157 #else
1158                 in_addr* s1 = &((sockaddr_in*)comp->ip)->sin_addr;
1159                 in_addr* s2 = &((sockaddr_in*)this->ip)->sin_addr;
1160                 if (s1->s_addr == s2->s_addr)
1161                         x++;
1162 #endif
1163         }
1164         return x;
1165 }
1166
1167 void userrec::FullConnect(CullList* Goners)
1168 {
1169         ServerInstance->stats->statsConnects++;
1170         this->idle_lastmsg = ServerInstance->Time();
1171
1172         ConnectClass a = this->GetClass();
1173
1174         if (a.type == CC_DENY)
1175         {
1176                 Goners->AddItem(this,"Unauthorised connection");
1177                 return;
1178         }
1179
1180         if ((*(a.pass.c_str())) && (!this->haspassed))
1181         {
1182                 Goners->AddItem(this,"Invalid password");
1183                 return;
1184         }
1185
1186         if (this->LocalCloneCount() > a.maxlocal)
1187         {
1188                 Goners->AddItem(this, "No more connections allowed from your host via this connect class (local)");
1189                 ServerInstance->WriteOpers("*** WARNING: maximum LOCAL connections (%ld) exceeded for IP %s", a.maxlocal, this->GetIPString());
1190                 return;
1191         }
1192         else if (this->GlobalCloneCount() > a.maxglobal)
1193         {
1194                 Goners->AddItem(this, "No more connections allowed from your host via this connect class (global)");
1195                 ServerInstance->WriteOpers("*** WARNING: maximum GLOBAL connections (%ld) exceeded for IP %s",a.maxglobal, this->GetIPString());
1196                 return;
1197         }
1198
1199         ELine* e = ServerInstance->XLines->matches_exception(this);
1200
1201         if (!e)
1202         {
1203                 GLine* r = ServerInstance->XLines->matches_gline(this);
1204
1205                 if (r)
1206                 {
1207                         char reason[MAXBUF];
1208                         snprintf(reason,MAXBUF,"G-Lined: %s",r->reason);
1209                         Goners->AddItem(this, reason);
1210                         return;
1211                 }
1212
1213                 KLine* n = ServerInstance->XLines->matches_kline(this);
1214
1215                 if (n)
1216                 {
1217                         char reason[MAXBUF];
1218                         snprintf(reason,MAXBUF,"K-Lined: %s",n->reason);
1219                         Goners->AddItem(this, reason);
1220                         return;
1221                 }
1222         }
1223
1224
1225         this->WriteServ("NOTICE Auth :Welcome to \002%s\002!",ServerInstance->Config->Network);
1226         this->WriteServ("001 %s :Welcome to the %s IRC Network %s!%s@%s",this->nick, ServerInstance->Config->Network, this->nick, this->ident, this->host);
1227         this->WriteServ("002 %s :Your host is %s, running version %s",this->nick,ServerInstance->Config->ServerName,VERSION);
1228         this->WriteServ("003 %s :This server was created %s %s", this->nick, __TIME__, __DATE__);
1229         this->WriteServ("004 %s %s %s %s %s %s", this->nick, ServerInstance->Config->ServerName, VERSION, ServerInstance->Modes->UserModeList().c_str(), ServerInstance->Modes->ChannelModeList().c_str(), ServerInstance->Modes->ParaModeList().c_str());
1230
1231         // anfl @ #ratbox, efnet reminded me that according to the RFC this cant contain more than 13 tokens per line...
1232         // so i'd better split it :)
1233         std::stringstream out(ServerInstance->Config->data005);
1234         std::string token = "";
1235         std::string line5 = "";
1236         int token_counter = 0;
1237
1238         while (!out.eof())
1239         {
1240                 out >> token;
1241                 line5 = line5 + token + " ";
1242                 token_counter++;
1243
1244                 if ((token_counter >= 13) || (out.eof() == true))
1245                 {
1246                         this->WriteServ("005 %s %s:are supported by this server", this->nick, line5.c_str());
1247                         line5 = "";
1248                         token_counter = 0;
1249                 }
1250         }
1251
1252         this->ShowMOTD();
1253
1254         /*
1255          * fix 3 by brain, move registered = 7 below these so that spurious modes and host
1256          * changes dont go out onto the network and produce 'fake direction'.
1257          */
1258         FOREACH_MOD(I_OnUserConnect,OnUserConnect(this));
1259
1260         this->registered = REG_ALL;
1261
1262         FOREACH_MOD(I_OnPostConnect,OnPostConnect(this));
1263
1264         ServerInstance->SNO->WriteToSnoMask('c',"Client connecting on port %d: %s!%s@%s [%s]", this->GetPort(), this->nick, this->ident, this->host, this->GetIPString());
1265 }
1266
1267 /** userrec::UpdateNick()
1268  * re-allocates a nick in the user_hash after they change nicknames,
1269  * returns a pointer to the new user as it may have moved
1270  */
1271 userrec* userrec::UpdateNickHash(const char* New)
1272 {
1273         try
1274         {
1275                 //user_hash::iterator newnick;
1276                 user_hash::iterator oldnick = ServerInstance->clientlist.find(this->nick);
1277
1278                 if (!strcasecmp(this->nick,New))
1279                         return oldnick->second;
1280
1281                 if (oldnick == ServerInstance->clientlist.end())
1282                         return NULL; /* doesnt exist */
1283
1284                 userrec* olduser = oldnick->second;
1285                 ServerInstance->clientlist[New] = olduser;
1286                 ServerInstance->clientlist.erase(oldnick);
1287                 return ServerInstance->clientlist[New];
1288         }
1289
1290         catch (...)
1291         {
1292                 ServerInstance->Log(DEBUG,"Exception in userrec::UpdateNickHash()");
1293                 return NULL;
1294         }
1295 }
1296
1297 bool userrec::ForceNickChange(const char* newnick)
1298 {
1299         try
1300         {
1301                 int MOD_RESULT = 0;
1302
1303                 FOREACH_RESULT(I_OnUserPreNick,OnUserPreNick(this, newnick));
1304
1305                 if (MOD_RESULT)
1306                 {
1307                         ServerInstance->stats->statsCollisions++;
1308                         return false;
1309                 }
1310
1311                 if (ServerInstance->XLines->matches_qline(newnick))
1312                 {
1313                         ServerInstance->stats->statsCollisions++;
1314                         return false;
1315                 }
1316
1317                 if (this->registered == REG_ALL)
1318                 {
1319                         const char* pars[1];
1320                         pars[0] = newnick;
1321                         std::string cmd = "NICK";
1322                         return (ServerInstance->Parser->CallHandler(cmd, pars, 1, this) == CMD_SUCCESS);
1323                 }
1324                 return false;
1325         }
1326
1327         catch (...)
1328         {
1329                 ServerInstance->Log(DEBUG,"Exception in userrec::ForceNickChange()");
1330                 return false;
1331         }
1332 }
1333
1334 void userrec::SetSockAddr(int protocol_family, const char* ip, int port)
1335 {
1336         switch (protocol_family)
1337         {
1338 #ifdef SUPPORT_IP6LINKS
1339                 case AF_INET6:
1340                 {
1341                         ServerInstance->Log(DEBUG,"Set inet6 protocol address");
1342                         sockaddr_in6* sin = new sockaddr_in6;
1343                         sin->sin6_family = AF_INET6;
1344                         sin->sin6_port = port;
1345                         inet_pton(AF_INET6, ip, &sin->sin6_addr);
1346                         this->ip = (sockaddr*)sin;
1347                 }
1348                 break;
1349 #endif
1350                 case AF_INET:
1351                 {
1352                         ServerInstance->Log(DEBUG,"Set inet4 protocol address");
1353                         sockaddr_in* sin = new sockaddr_in;
1354                         sin->sin_family = AF_INET;
1355                         sin->sin_port = port;
1356                         inet_pton(AF_INET, ip, &sin->sin_addr);
1357                         this->ip = (sockaddr*)sin;
1358                 }
1359                 break;
1360                 default:
1361                         ServerInstance->Log(DEBUG,"Ut oh, I dont know protocol %d to be set on '%s'!", protocol_family, this->nick);
1362                 break;
1363         }
1364 }
1365
1366 int userrec::GetPort()
1367 {
1368         if (this->ip == NULL)
1369                 return 0;
1370
1371         switch (this->GetProtocolFamily())
1372         {
1373 #ifdef SUPPORT_IP6LINKS
1374                 case AF_INET6:
1375                 {
1376                         sockaddr_in6* sin = (sockaddr_in6*)this->ip;
1377                         return sin->sin6_port;
1378                 }
1379                 break;
1380 #endif
1381                 case AF_INET:
1382                 {
1383                         sockaddr_in* sin = (sockaddr_in*)this->ip;
1384                         return sin->sin_port;
1385                 }
1386                 break;
1387                 default:
1388                         ServerInstance->Log(DEBUG,"Ut oh, '%s' has an unknown protocol family!",this->nick);
1389                 break;
1390         }
1391         return 0;
1392 }
1393
1394 int userrec::GetProtocolFamily()
1395 {
1396         if (this->ip == NULL)
1397                 return 0;
1398
1399         sockaddr_in* sin = (sockaddr_in*)this->ip;
1400         return sin->sin_family;
1401 }
1402
1403 const char* userrec::GetIPString()
1404 {
1405         static char buf[1024];
1406
1407         if (this->ip == NULL)
1408                 return "";
1409
1410         switch (this->GetProtocolFamily())
1411         {
1412 #ifdef SUPPORT_IP6LINKS
1413                 case AF_INET6:
1414                 {
1415                         static char temp[1024];
1416
1417                         sockaddr_in6* sin = (sockaddr_in6*)this->ip;
1418                         inet_ntop(sin->sin6_family, &sin->sin6_addr, buf, sizeof(buf));
1419                         /* IP addresses starting with a : on irc are a Bad Thing (tm) */
1420                         if (*buf == ':')
1421                         {
1422                                 strlcpy(&temp[1], buf, sizeof(temp) - 1);
1423                                 *temp = '0';
1424                                 return temp;
1425                         }
1426                         return buf;
1427                 }
1428                 break;
1429 #endif
1430                 case AF_INET:
1431                 {
1432                         sockaddr_in* sin = (sockaddr_in*)this->ip;
1433                         inet_ntop(sin->sin_family, &sin->sin_addr, buf, sizeof(buf));
1434                         return buf;
1435                 }
1436                 break;
1437                 default:
1438                         ServerInstance->Log(DEBUG,"Ut oh, '%s' has an unknown protocol family!",this->nick);
1439                 break;
1440         }
1441         return "";
1442 }
1443
1444 const char* userrec::GetIPString(char* buf)
1445 {
1446         if (this->ip == NULL)
1447         {
1448                 *buf = 0;
1449                 return buf;
1450         }
1451
1452         switch (this->GetProtocolFamily())
1453         {
1454 #ifdef SUPPORT_IP6LINKS
1455                 case AF_INET6:
1456                 {
1457                         static char temp[1024];
1458
1459                         sockaddr_in6* sin = (sockaddr_in6*)this->ip;
1460                         inet_ntop(sin->sin6_family, &sin->sin6_addr, buf, sizeof(buf));
1461                         /* IP addresses starting with a : on irc are a Bad Thing (tm) */
1462                         if (*buf == ':')
1463                         {
1464                                 strlcpy(&temp[1], buf, sizeof(temp) - 1);
1465                                 *temp = '0';
1466                                 strlcpy(buf, temp, sizeof(temp));
1467                         }
1468                         return buf;
1469                 }
1470                 break;
1471 #endif
1472                 case AF_INET:
1473                 {
1474                         sockaddr_in* sin = (sockaddr_in*)this->ip;
1475                         inet_ntop(sin->sin_family, &sin->sin_addr, buf, sizeof(buf));
1476                         return buf;
1477                 }
1478                 break;
1479
1480                 default:
1481                         ServerInstance->Log(DEBUG,"Ut oh, '%s' has an unknown protocol family!",this->nick);
1482                 break;
1483         }
1484         return "";
1485 }
1486
1487 /** NOTE: We cannot pass a const reference to this method.
1488  * The string is changed by the workings of the method,
1489  * so that if we pass const ref, we end up copying it to
1490  * something we can change anyway. Makes sense to just let
1491  * the compiler do that copy for us.
1492  */
1493 void userrec::Write(std::string text)
1494 {
1495         if ((this->fd < 0) || (this->fd > MAX_DESCRIPTORS))
1496                 return;
1497
1498         try
1499         {
1500                 text.append("\r\n");
1501         }
1502         catch (...)
1503         {
1504                 ServerInstance->Log(DEBUG,"Exception in userrec::Write() std::string::append");
1505                 return;
1506         }
1507
1508         if (ServerInstance->Config->GetIOHook(this->GetPort()))
1509         {
1510                 try
1511                 {
1512                         ServerInstance->Config->GetIOHook(this->GetPort())->OnRawSocketWrite(this->fd, text.data(), text.length());
1513                 }
1514                 catch (ModuleException& modexcept)
1515                 {
1516                         ServerInstance->Log(DEBUG,"Module exception caught: %s",modexcept.GetReason());
1517                 }
1518         }
1519         else
1520         {
1521                 this->AddWriteBuf(text);
1522         }
1523         ServerInstance->stats->statsSent += text.length();
1524         this->ServerInstance->SE->WantWrite(this);
1525 }
1526
1527 /** Write()
1528  */
1529 void userrec::Write(const char *text, ...)
1530 {
1531         va_list argsPtr;
1532         char textbuffer[MAXBUF];
1533
1534         va_start(argsPtr, text);
1535         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
1536         va_end(argsPtr);
1537
1538         this->Write(std::string(textbuffer));
1539 }
1540
1541 void userrec::WriteServ(const std::string& text)
1542 {
1543         char textbuffer[MAXBUF];
1544
1545         snprintf(textbuffer,MAXBUF,":%s %s",ServerInstance->Config->ServerName,text.c_str());
1546         this->Write(std::string(textbuffer));
1547 }
1548
1549 /** WriteServ()
1550  *  Same as Write(), except `text' is prefixed with `:server.name '.
1551  */
1552 void userrec::WriteServ(const char* text, ...)
1553 {
1554         va_list argsPtr;
1555         char textbuffer[MAXBUF];
1556
1557         va_start(argsPtr, text);
1558         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
1559         va_end(argsPtr);
1560
1561         this->WriteServ(std::string(textbuffer));
1562 }
1563
1564
1565 void userrec::WriteFrom(userrec *user, const std::string &text)
1566 {
1567         char tb[MAXBUF];
1568
1569         snprintf(tb,MAXBUF,":%s %s",user->GetFullHost(),text.c_str());
1570
1571         this->Write(std::string(tb));
1572 }
1573
1574
1575 /* write text from an originating user to originating user */
1576
1577 void userrec::WriteFrom(userrec *user, const char* text, ...)
1578 {
1579         va_list argsPtr;
1580         char textbuffer[MAXBUF];
1581
1582         va_start(argsPtr, text);
1583         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
1584         va_end(argsPtr);
1585
1586         this->WriteFrom(user, std::string(textbuffer));
1587 }
1588
1589
1590 /* write text to an destination user from a source user (e.g. user privmsg) */
1591
1592 void userrec::WriteTo(userrec *dest, const char *data, ...)
1593 {
1594         char textbuffer[MAXBUF];
1595         va_list argsPtr;
1596
1597         va_start(argsPtr, data);
1598         vsnprintf(textbuffer, MAXBUF, data, argsPtr);
1599         va_end(argsPtr);
1600
1601         this->WriteTo(dest, std::string(textbuffer));
1602 }
1603
1604 void userrec::WriteTo(userrec *dest, const std::string &data)
1605 {
1606         dest->WriteFrom(this, data);
1607 }
1608
1609
1610 void userrec::WriteCommon(const char* text, ...)
1611 {
1612         char textbuffer[MAXBUF];
1613         va_list argsPtr;
1614
1615         if (this->registered != REG_ALL)
1616                 return;
1617
1618         va_start(argsPtr, text);
1619         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
1620         va_end(argsPtr);
1621
1622         this->WriteCommon(std::string(textbuffer));
1623 }
1624
1625 void userrec::WriteCommon(const std::string &text)
1626 {
1627         try
1628         {
1629                 bool sent_to_at_least_one = false;
1630
1631                 if (this->registered != REG_ALL)
1632                         return;
1633
1634                 uniq_id++;
1635
1636                 for (std::vector<ucrec*>::const_iterator v = this->chans.begin(); v != this->chans.end(); v++)
1637                 {
1638                         ucrec *n = *v;
1639                         if (n->channel)
1640                         {
1641                                 CUList *ulist= n->channel->GetUsers();
1642
1643                                 for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
1644                                 {
1645                                         if ((IS_LOCAL(i->second)) && (already_sent[i->second->fd] != uniq_id))
1646                                         {
1647                                                 already_sent[i->second->fd] = uniq_id;
1648                                                 i->second->WriteFrom(this, std::string(text));
1649                                                 sent_to_at_least_one = true;
1650                                         }
1651                                 }
1652                         }
1653                 }
1654
1655                 /*
1656                  * if the user was not in any channels, no users will receive the text. Make sure the user
1657                  * receives their OWN message for WriteCommon
1658                  */
1659                 if (!sent_to_at_least_one)
1660                 {
1661                         this->WriteFrom(this,std::string(text));
1662                 }
1663         }
1664
1665         catch (...)
1666         {
1667                 ServerInstance->Log(DEBUG,"Exception in userrec::WriteCommon()");
1668         }
1669 }
1670
1671
1672 /* write a formatted string to all users who share at least one common
1673  * channel, NOT including the source user e.g. for use in QUIT
1674  */
1675
1676 void userrec::WriteCommonExcept(const char* text, ...)
1677 {
1678         char textbuffer[MAXBUF];
1679         va_list argsPtr;
1680
1681         va_start(argsPtr, text);
1682         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
1683         va_end(argsPtr);
1684
1685         this->WriteCommonExcept(std::string(textbuffer));
1686 }
1687
1688 void userrec::WriteCommonExcept(const std::string &text)
1689 {
1690         bool quit_munge = false;
1691         char oper_quit[MAXBUF];
1692         char textbuffer[MAXBUF];
1693
1694         strlcpy(textbuffer, text.c_str(), MAXBUF);
1695
1696         if (this->registered != REG_ALL)
1697                 return;
1698
1699         uniq_id++;
1700
1701         /* TODO: We need some form of WriteCommonExcept that will send two lines, one line to
1702          * opers and the other line to non-opers, then all this hidebans and hidesplits gunk
1703          * can go byebye.
1704          */
1705         if (ServerInstance->Config->HideSplits)
1706         {
1707                 char* check = textbuffer + 6;
1708
1709                 if (!strncasecmp(textbuffer, "QUIT :",6))
1710                 {
1711                         std::stringstream split(check);
1712                         std::string server_one;
1713                         std::string server_two;
1714
1715                         split >> server_one;
1716                         split >> server_two;
1717
1718                         if ((ServerInstance->FindServerName(server_one)) && (ServerInstance->FindServerName(server_two)))
1719                         {
1720                                 strlcpy(oper_quit,textbuffer,MAXQUIT);
1721                                 strlcpy(check,"*.net *.split",MAXQUIT);
1722                                 quit_munge = true;
1723                         }
1724                 }
1725         }
1726
1727         if ((ServerInstance->Config->HideBans) && (!quit_munge))
1728         {
1729                 if ((!strncasecmp(textbuffer, "QUIT :G-Lined:",14)) || (!strncasecmp(textbuffer, "QUIT :K-Lined:",14))
1730                 || (!strncasecmp(textbuffer, "QUIT :Q-Lined:",14)) || (!strncasecmp(textbuffer, "QUIT :Z-Lined:",14)))
1731                 {
1732                         char* check = textbuffer + 13;
1733                         strlcpy(oper_quit,textbuffer,MAXQUIT);
1734                         *check = 0;  // We don't need to strlcpy, we just chop it from the :
1735                         quit_munge = true;
1736                 }
1737         }
1738
1739         for (std::vector<ucrec*>::const_iterator v = this->chans.begin(); v != this->chans.end(); v++)
1740         {
1741                 ucrec* n = *v;
1742                 if (n->channel)
1743                 {
1744                         CUList *ulist= n->channel->GetUsers();
1745
1746                         for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
1747                         {
1748                                 if (this != i->second)
1749                                 {
1750                                         if ((IS_LOCAL(i->second)) && (already_sent[i->second->fd] != uniq_id))
1751                                         {
1752                                                 already_sent[i->second->fd] = uniq_id;
1753                                                 if (quit_munge)
1754                                                         i->second->WriteFrom(this, *i->second->oper ? std::string(oper_quit) : std::string(textbuffer));
1755                                                 else
1756                                                         i->second->WriteFrom(this, std::string(textbuffer));
1757                                         }
1758                                 }
1759                         }
1760                 }
1761         }
1762
1763 }
1764
1765 void userrec::WriteWallOps(const std::string &text)
1766 {
1767         /* Does nothing if theyre not opered */
1768         if ((!*this->oper) && (IS_LOCAL(this)))
1769                 return;
1770
1771         std::string wallop = "WALLOPS :";
1772
1773         try
1774         {
1775                 wallop.append(text);
1776         }
1777         catch (...)
1778         {
1779                 ServerInstance->Log(DEBUG,"Exception in userrec::Write() std::string::append");
1780                 return;
1781         }
1782
1783         for (std::vector<userrec*>::const_iterator i = ServerInstance->local_users.begin(); i != ServerInstance->local_users.end(); i++)
1784         {
1785                 userrec* t = *i;
1786                 if ((IS_LOCAL(t)) && (t->modes[UM_WALLOPS]))
1787                         this->WriteTo(t,wallop);
1788         }
1789 }
1790
1791 void userrec::WriteWallOps(const char* text, ...)
1792 {
1793         char textbuffer[MAXBUF];
1794         va_list argsPtr;
1795
1796         va_start(argsPtr, text);
1797         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
1798         va_end(argsPtr);
1799
1800         this->WriteWallOps(std::string(textbuffer));
1801 }
1802
1803 /* return 0 or 1 depending if users u and u2 share one or more common channels
1804  * (used by QUIT, NICK etc which arent channel specific notices)
1805  *
1806  * The old algorithm in 1.0 for this was relatively inefficient, iterating over
1807  * the first users channels then the second users channels within the outer loop,
1808  * therefore it was a maximum of x*y iterations (upon returning 0 and checking
1809  * all possible iterations). However this new function instead checks against the
1810  * channel's userlist in the inner loop which is a std::map<userrec*,userrec*>
1811  * and saves us time as we already know what pointer value we are after.
1812  * Don't quote me on the maths as i am not a mathematician or computer scientist,
1813  * but i believe this algorithm is now x+(log y) maximum iterations instead.
1814  */
1815 bool userrec::SharesChannelWith(userrec *other)
1816 {
1817         if ((!other) || (this->registered != REG_ALL) || (other->registered != REG_ALL))
1818                 return false;
1819
1820         /* Outer loop */
1821         for (std::vector<ucrec*>::const_iterator i = this->chans.begin(); i != this->chans.end(); i++)
1822         {
1823                 /* Fetch the channel from the user */
1824                 ucrec* user_channel = *i;
1825
1826                 if (user_channel->channel)
1827                 {
1828                         /* Eliminate the inner loop (which used to be ~equal in size to the outer loop)
1829                          * by replacing it with a map::find which *should* be more efficient
1830                          */
1831                         if (user_channel->channel->HasUser(other))
1832                                 return true;
1833                 }
1834         }
1835         return false;
1836 }
1837
1838 int userrec::CountChannels()
1839 {
1840         return ChannelCount;
1841 }
1842
1843 void userrec::ModChannelCount(int n)
1844 {
1845         ChannelCount += n;
1846 }
1847
1848 bool userrec::ChangeName(const char* gecos)
1849 {
1850         if (!strcmp(gecos, this->fullname))
1851                 return true;
1852
1853         if (IS_LOCAL(this))
1854         {
1855                 int MOD_RESULT = 0;
1856                 FOREACH_RESULT(I_OnChangeLocalUserGECOS,OnChangeLocalUserGECOS(this,gecos));
1857                 if (MOD_RESULT)
1858                         return false;
1859                 FOREACH_MOD(I_OnChangeName,OnChangeName(this,gecos));
1860         }
1861         strlcpy(this->fullname,gecos,MAXGECOS+1);
1862         return true;
1863 }
1864
1865 bool userrec::ChangeDisplayedHost(const char* host)
1866 {
1867         if (!strcmp(host, this->dhost))
1868                 return true;
1869
1870         if (IS_LOCAL(this))
1871         {
1872                 int MOD_RESULT = 0;
1873                 FOREACH_RESULT(I_OnChangeLocalUserHost,OnChangeLocalUserHost(this,host));
1874                 if (MOD_RESULT)
1875                         return false;
1876                 FOREACH_MOD(I_OnChangeHost,OnChangeHost(this,host));
1877         }
1878         if (this->ServerInstance->Config->CycleHosts)
1879                 this->WriteCommonExcept("%s","QUIT :Changing hosts");
1880
1881         /* Fix by Om: userrec::dhost is 65 long, this was truncating some long hosts */
1882         strlcpy(this->dhost,host,64);
1883
1884         if (this->ServerInstance->Config->CycleHosts)
1885         {
1886                 for (std::vector<ucrec*>::const_iterator i = this->chans.begin(); i != this->chans.end(); i++)
1887                 {
1888                         if ((*i)->channel)
1889                         {
1890                                 (*i)->channel->WriteAllExceptSender(this, false, 0, "JOIN %s", (*i)->channel->name);
1891                                 std::string n = this->ServerInstance->Modes->ModeString(this, (*i)->channel);
1892                                 if (n.length() > 0)
1893                                         (*i)->channel->WriteAllExceptSender(this, true, 0, "MODE %s +%s", (*i)->channel->name, n.c_str());
1894                         }
1895                 }
1896         }
1897
1898         if (IS_LOCAL(this))
1899                 this->WriteServ("396 %s %s :is now your hidden host",this->nick,this->dhost);
1900
1901         return true;
1902 }
1903
1904 bool userrec::ChangeIdent(const char* newident)
1905 {
1906         if (!strcmp(newident, this->ident))
1907                 return true;
1908
1909         if (this->ServerInstance->Config->CycleHosts)
1910                 this->WriteCommonExcept("%s","QUIT :Changing ident");
1911
1912         strlcpy(this->ident, newident, IDENTMAX+2);
1913
1914         if (this->ServerInstance->Config->CycleHosts)
1915         {
1916                 for (std::vector<ucrec*>::const_iterator i = this->chans.begin(); i != this->chans.end(); i++)
1917                 {
1918                         if ((*i)->channel)
1919                         {
1920                                 (*i)->channel->WriteAllExceptSender(this, false, 0, "JOIN %s", (*i)->channel->name);
1921                                 std::string n = this->ServerInstance->Modes->ModeString(this, (*i)->channel);
1922                                 if (n.length() > 0)
1923                                         (*i)->channel->WriteAllExceptSender(this, true, 0, "MODE %s +%s", (*i)->channel->name, n.c_str());
1924                         }
1925                 }
1926         }
1927
1928         return true;
1929 }
1930
1931 void userrec::NoticeAll(char* text, ...)
1932 {
1933         char textbuffer[MAXBUF];
1934         char formatbuffer[MAXBUF];
1935         va_list argsPtr;
1936
1937         va_start(argsPtr, text);
1938         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
1939         va_end(argsPtr);
1940
1941         snprintf(formatbuffer,MAXBUF,"NOTICE $* :%s",textbuffer);
1942
1943         for (std::vector<userrec*>::const_iterator i = ServerInstance->local_users.begin(); i != ServerInstance->local_users.end(); i++)
1944         {
1945                 userrec* t = *i;
1946                 t->WriteFrom(this, std::string(formatbuffer));
1947         }
1948 }
1949
1950
1951 std::string userrec::ChannelList(userrec* source)
1952 {
1953         try
1954         {
1955                 std::string list;
1956                 for (std::vector<ucrec*>::const_iterator i = this->chans.begin(); i != this->chans.end(); i++)
1957                 {
1958                         ucrec* rec = *i;
1959
1960                         if(rec->channel && rec->channel->name)
1961                         {
1962                                 /* If the target is the same as the sender, let them see all their channels.
1963                                  * If the channel is NOT private/secret OR the user shares a common channel
1964                                  * If the user is an oper, and the <options:operspywhois> option is set.
1965                                  */
1966                                 if ((source == this) || (*source->oper && ServerInstance->Config->OperSpyWhois) || (((!rec->channel->modes[CM_PRIVATE]) && (!rec->channel->modes[CM_SECRET])) || (rec->channel->HasUser(source))))
1967                                 {
1968                                         list.append(rec->channel->GetPrefixChar(this)).append(rec->channel->name).append(" ");
1969                                 }
1970                         }
1971                 }
1972                 return list;
1973         }
1974         catch (...)
1975         {
1976                 ServerInstance->Log(DEBUG,"Exception in userrec::ChannelList()");
1977                 return "";
1978         }
1979 }
1980
1981 void userrec::SplitChanList(userrec* dest, const std::string &cl)
1982 {
1983         std::string line;
1984         std::ostringstream prefix;
1985         std::string::size_type start, pos, length;
1986
1987         try
1988         {
1989                 prefix << this->nick << " " << dest->nick << " :";
1990                 line = prefix.str();
1991                 int namelen = strlen(ServerInstance->Config->ServerName) + 6;
1992
1993                 for (start = 0; (pos = cl.find(' ', start)) != std::string::npos; start = pos+1)
1994                 {
1995                         length = (pos == std::string::npos) ? cl.length() : pos;
1996
1997                         if (line.length() + namelen + length - start > 510)
1998                         {
1999                                 this->Write(line);
2000                                 line = prefix.str();
2001                         }
2002
2003                         if(pos == std::string::npos)
2004                         {
2005                                 line.append(cl.substr(start, length - start));
2006                                 break;
2007                         }
2008                         else
2009                         {
2010                                 line.append(cl.substr(start, length - start + 1));
2011                         }
2012                 }
2013
2014                 if (line.length())
2015                 {
2016                         ServerInstance->SendWhoisLine(this, dest, 319, "%s", line.c_str());
2017                 }
2018         }
2019
2020         catch (...)
2021         {
2022                 ServerInstance->Log(DEBUG,"Exception in userrec::SplitChanList()");
2023         }
2024 }
2025
2026
2027 /* looks up a users password for their connection class (<ALLOW>/<DENY> tags)
2028  * NOTE: If the <ALLOW> or <DENY> tag specifies an ip, and this user resolves,
2029  * then their ip will be taken as 'priority' anyway, so for example,
2030  * <connect allow="127.0.0.1"> will match joe!bloggs@localhost
2031  */
2032 ConnectClass& userrec::GetClass()
2033 {
2034         for (ClassVector::iterator i = ServerInstance->Config->Classes.begin(); i != ServerInstance->Config->Classes.end(); i++)
2035         {
2036                 if ((match(this->GetIPString(),i->host.c_str(),true)) || (match(this->host,i->host.c_str())))
2037                         return *i;
2038         }
2039
2040         return *(ServerInstance->Config->Classes.begin());
2041 }
2042
2043 void userrec::PurgeEmptyChannels()
2044 {
2045         std::vector<chanrec*> to_delete;
2046
2047         // firstly decrement the count on each channel
2048         for (std::vector<ucrec*>::iterator f = this->chans.begin(); f != this->chans.end(); f++)
2049         {
2050                 ucrec* uc = *f;
2051                 if (uc->channel)
2052                 {
2053                         uc->channel->RemoveAllPrefixes(this);
2054                         if (uc->channel->DelUser(this) == 0)
2055                         {
2056                                 /* No users left in here, mark it for deletion */
2057                                 try
2058                                 {
2059                                         to_delete.push_back(uc->channel);
2060                                 }
2061                                 catch (...)
2062                                 {
2063                                         ServerInstance->Log(DEBUG,"Exception in userrec::PurgeEmptyChannels to_delete.push_back()");
2064                                 }
2065                                 uc->channel = NULL;
2066                         }
2067                 }
2068         }
2069
2070         for (std::vector<chanrec*>::iterator n = to_delete.begin(); n != to_delete.end(); n++)
2071         {
2072                 chanrec* thischan = *n;
2073                 chan_hash::iterator i2 = ServerInstance->chanlist.find(thischan->name);
2074                 if (i2 != ServerInstance->chanlist.end())
2075                 {
2076                         FOREACH_MOD(I_OnChannelDelete,OnChannelDelete(i2->second));
2077                         DELETE(i2->second);
2078                         ServerInstance->chanlist.erase(i2);
2079                 }
2080         }
2081
2082         this->UnOper();
2083 }
2084
2085 void userrec::ShowMOTD()
2086 {
2087         if (!ServerInstance->Config->MOTD.size())
2088         {
2089                 this->WriteServ("422 %s :Message of the day file is missing.",this->nick);
2090                 return;
2091         }
2092         this->WriteServ("375 %s :%s message of the day", this->nick, ServerInstance->Config->ServerName);
2093
2094         for (unsigned int i = 0; i < ServerInstance->Config->MOTD.size(); i++)
2095                 this->WriteServ("372 %s :- %s",this->nick,ServerInstance->Config->MOTD[i].c_str());
2096
2097         this->WriteServ("376 %s :End of message of the day.", this->nick);
2098 }
2099
2100 void userrec::ShowRULES()
2101 {
2102         if (!ServerInstance->Config->RULES.size())
2103         {
2104                 this->WriteServ("NOTICE %s :Rules file is missing.",this->nick);
2105                 return;
2106         }
2107         this->WriteServ("NOTICE %s :%s rules",this->nick,ServerInstance->Config->ServerName);
2108
2109         for (unsigned int i = 0; i < ServerInstance->Config->RULES.size(); i++)
2110                 this->WriteServ("NOTICE %s :%s",this->nick,ServerInstance->Config->RULES[i].c_str());
2111
2112         this->WriteServ("NOTICE %s :End of %s rules.",this->nick,ServerInstance->Config->ServerName);
2113 }
2114
2115 void userrec::HandleEvent(EventType et, int errornum)
2116 {
2117         /* WARNING: May delete this user! */
2118         try
2119         {
2120                 switch (et)
2121                 {
2122                         case EVENT_READ:
2123                                 ServerInstance->ProcessUser(this);
2124                         break;
2125                         case EVENT_WRITE:
2126                                 this->FlushWriteBuf();
2127                         break;
2128                         case EVENT_ERROR:
2129                                 this->SetWriteError(errornum ? strerror(errornum) : "EOF from client");
2130                         break;
2131                 }
2132         }
2133         catch (...)
2134         {
2135                 ServerInstance->Log(DEBUG,"Exception in userrec::HandleEvent intercepted");
2136         }
2137 }