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 over 3 days */
 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                         int groupsize = ServerInstance->Config->WhoWasGroupSize;
 885                         int maxgroups = ServerInstance->Config->WhoWasMaxGroups;
 886                         int maxkeep =   ServerInstance->Config->WhoWasMaxKeep;
 887
 888                         int groupcount = 0;
 889                         for (whowas_users_fifo::iterator iter = ServerInstance->whowas_fifo.begin(); iter != ServerInstance->whowas_fifo.end(); iter++)
 890                         {
 891                                 groupcount++;
 892
 893                                 if (groupcount > maxgroups || iter->first < t - maxkeep)
 894                                 {
 895                                         whowas_set* n = (whowas_set*)ServerInstance->whowas.find(iter->second)->second;
 896                                         if (n->size())
 897                                         {
 898                                                 while (n->begin() != n->end())
 899                                                 {
 900                                                         WhoWasGroup *a = *(n->begin());
 901                                                         DELETE(a);
 902                                                         n->erase(n->begin());
 903                                                 }
 904                                         }
 905                                         ServerInstance->whowas.erase(iter->second);
 906                                         ServerInstance->whowas_fifo.erase(iter->first);
 907                                 }
 908                                 else {
 909                                         whowas_set* n = (whowas_set*)ServerInstance->whowas.find(iter->second)->second;
 910                                         if (n->size())
 911                                         {
 912                                                 int nickcount = 0;
 913                                                 while (n->begin() != n->end())
 914                                                 {
 915                                                         nickcount++;
 916                                                         if (nickcount > groupsize){
 917                                                                 WhoWasGroup *a = *(n->begin());
 918                                                                 DELETE(a);
 919                                                                 n->erase(n->begin());
 920                                                         }
 921                                                 }
 922                                         }
 923                                 }
 924                         }
 925                 }
 926         };
 927 };
 928
 929 /* adds or updates an entry in the whowas list */
 930 void userrec::AddToWhoWas()
 931 {
 932         irc::whowas::whowas_users::iterator iter = ServerInstance->whowas.find(this->nick);
 933
 934         ServerInstance->Log(DEBUG,"Add to whowas lists");
 935
 936         if (iter == ServerInstance->whowas.end())
 937         {
 938                 ServerInstance->Log(DEBUG,"Adding new whowas set for %s",this->nick);
 939                 irc::whowas::whowas_set* n = new irc::whowas::whowas_set;
 940                 irc::whowas::WhoWasGroup *a = new irc::whowas::WhoWasGroup(this);
 941                 n->push_back(a);
 942                 ServerInstance->whowas[this->nick] = n;
 943                 ServerInstance->whowas_fifo[ServerInstance->Time()] = this->nick;
 944                 if ((int)(ServerInstance->whowas.size()) > ServerInstance->Config->WhoWasMaxGroups)
 945                 {
 946                         ServerInstance->whowas.erase(ServerInstance->whowas_fifo.begin()->second);
 947                         ServerInstance->whowas_fifo.erase(ServerInstance->whowas_fifo.begin());
 948                 }
 949         }
 950         else
 951         {
 952                 irc::whowas::whowas_set* group = (irc::whowas::whowas_set*)iter->second;
 953
 954                 ServerInstance->Log(DEBUG,"Using existing whowas group for %s",this->nick);
 955
 956                 if ((int)(group->size()) > ServerInstance->Config->WhoWasMaxGroups)
 957                 {
 958                         ServerInstance->Log(DEBUG,"Trimming existing group to ten entries for %s",this->nick);
 959                         irc::whowas::WhoWasGroup *a = (irc::whowas::WhoWasGroup*)*(group->begin());
 960                         DELETE(a);
 961                         group->pop_front();
 962                 }
 963
 964                 irc::whowas::WhoWasGroup *a = new irc::whowas::WhoWasGroup(this);
 965                 group->push_back(a);
 966         }
 967 }
 968
 969 /* add a client connection to the sockets list */
 970 void userrec::AddClient(InspIRCd* Instance, int socket, int port, bool iscached, insp_inaddr ip)
 971 {
 972         std::string tempnick = ConvToStr(socket) + "-unknown";
 973         user_hash::iterator iter = Instance->clientlist.find(tempnick);
 974         const char *ipaddr = insp_ntoa(ip);
 975         userrec* New;
 976         int j = 0;
 977
 978         /*
 979          * fix by brain.
 980          * as these nicknames are 'RFC impossible', we can be sure nobody is going to be
 981          * using one as a registered connection. As they are per fd, we can also safely assume
 982          * that we wont have collisions. Therefore, if the nick exists in the list, its only
 983          * used by a dead socket, erase the iterator so that the new client may reclaim it.
 984          * this was probably the cause of 'server ignores me when i hammer it with reconnects'
 985          * issue in earlier alphas/betas
 986          */
 987         if (iter != Instance->clientlist.end())
 988         {
 989                 userrec* goner = iter->second;
 990                 DELETE(goner);
 991                 Instance->clientlist.erase(iter);
 992         }
 993
 994         Instance->Log(DEBUG,"AddClient: %d %d %s",socket,port,ipaddr);
 995
 996         New = new userrec(Instance);
 997         Instance->clientlist[tempnick] = New;
 998         New->fd = socket;
 999         strlcpy(New->nick,tempnick.c_str(),NICKMAX-1);
1000
1001         New->server = Instance->FindServerNamePtr(Instance->Config->ServerName);
1002         /* We don't need range checking here, we KNOW 'unknown\0' will fit into the ident field. */
1003         strcpy(New->ident, "unknown");
1004
1005         New->registered = REG_NONE;
1006         New->signon = Instance->Time() + Instance->Config->dns_timeout;
1007         New->lastping = 1;
1008
1009         Instance->Log(DEBUG,"Setting socket addresses");
1010         New->SetSockAddr(AF_FAMILY, ipaddr, port);
1011         Instance->Log(DEBUG,"Socket addresses set.");
1012
1013         /* Smarter than your average bear^H^H^H^Hset of strlcpys. */
1014         for (const char* temp = New->GetIPString(); *temp && j < 64; temp++, j++)
1015                 New->dhost[j] = New->host[j] = *temp;
1016         New->dhost[j] = New->host[j] = 0;
1017
1018         Instance->Log(DEBUG,"Hosts set.");
1019
1020         // set the registration timeout for this user
1021         unsigned long class_regtimeout = 90;
1022         int class_flood = 0;
1023         long class_threshold = 5;
1024         long class_sqmax = 262144;      // 256kb
1025         long class_rqmax = 4096;        // 4k
1026
1027         Instance->Log(DEBUG,"Class stuff set.");
1028
1029         for (ClassVector::iterator i = Instance->Config->Classes.begin(); i != Instance->Config->Classes.end(); i++)
1030         {
1031                 if ((i->type == CC_ALLOW) && (match(ipaddr,i->host.c_str(),true)))
1032                 {
1033                         class_regtimeout = (unsigned long)i->registration_timeout;
1034                         class_flood = i->flood;
1035                         New->pingmax = i->pingtime;
1036                         class_threshold = i->threshold;
1037                         class_sqmax = i->sendqmax;
1038                         class_rqmax = i->recvqmax;
1039                         break;
1040                 }
1041         }
1042
1043         Instance->Log(DEBUG,"nping etc set.");
1044
1045         New->nping = Instance->Time() + New->pingmax + Instance->Config->dns_timeout;
1046         New->timeout = Instance->Time() + class_regtimeout;
1047         New->flood = class_flood;
1048         New->threshold = class_threshold;
1049         New->sendqmax = class_sqmax;
1050         New->recvqmax = class_rqmax;
1051
1052         Instance->Log(DEBUG,"Push back to local users.");
1053         Instance->local_users.push_back(New);
1054
1055         Instance->Log(DEBUG,"Check softlimit: %d %d %d",Instance->local_users.size(), Instance->Config->SoftLimit, MAXCLIENTS);
1056         if ((Instance->local_users.size() > Instance->Config->SoftLimit) || (Instance->local_users.size() >= MAXCLIENTS))
1057         {
1058                 Instance->Log(DEBUG,"Check softlimit failed");
1059                 Instance->WriteOpers("*** Warning: softlimit value has been reached: %d clients", Instance->Config->SoftLimit);
1060                 userrec::QuitUser(Instance, New,"No more connections allowed");
1061                 return;
1062         }
1063
1064         Instance->Log(DEBUG,"Softlimit passed.");
1065
1066         /*
1067          * XXX -
1068          * this is done as a safety check to keep the file descriptors within range of fd_ref_table.
1069          * its a pretty big but for the moment valid assumption:
1070          * file descriptors are handed out starting at 0, and are recycled as theyre freed.
1071          * therefore if there is ever an fd over 65535, 65536 clients must be connected to the
1072          * irc server at once (or the irc server otherwise initiating this many connections, files etc)
1073          * which for the time being is a physical impossibility (even the largest networks dont have more
1074          * than about 10,000 users on ONE server!)
1075          */
1076         if ((unsigned int)socket >= MAX_DESCRIPTORS)
1077         {
1078                 userrec::QuitUser(Instance, New, "Server is full");
1079                 return;
1080         }
1081
1082         Instance->Log(DEBUG,"socket < MAX_DESCRIPTORS passed.");
1083
1084         ELine* e = Instance->XLines->matches_exception(New);
1085         if (!e)
1086         {
1087                 Instance->Log(DEBUG,"Doesnt match eline.");
1088                 ZLine* r = Instance->XLines->matches_zline(ipaddr);
1089                 if (r)
1090                 {
1091                         Instance->Log(DEBUG,"Matches zline.");
1092                         char reason[MAXBUF];
1093                         snprintf(reason,MAXBUF,"Z-Lined: %s",r->reason);
1094                         userrec::QuitUser(Instance, New, reason);
1095                         return;
1096                 }
1097                 Instance->Log(DEBUG,"Doesnt match zline.");
1098         }
1099
1100         Instance->Log(DEBUG,"Check before AddFd.");
1101
1102         if (socket > -1)
1103         {
1104                 Instance->Log(DEBUG,"Adding fd.");
1105                 if (!Instance->SE->AddFd(New))
1106                 {
1107                         Instance->Log(DEBUG,"Oops, fd already exists");
1108                         userrec::QuitUser(Instance, New, "Internal error handling connection");
1109                         return;
1110                 }
1111         }
1112
1113         New->WriteServ("NOTICE Auth :*** Looking up your hostname...");
1114 }
1115
1116 long userrec::GlobalCloneCount()
1117 {
1118         char u2[128];
1119         long x = 0;
1120         strlcpy(u2, this->GetIPString(), 64);
1121
1122         for (user_hash::const_iterator a = ServerInstance->clientlist.begin(); a != ServerInstance->clientlist.end(); a++)
1123         {
1124                 /* We have to match ip's as strings - we don't know what protocol
1125                  * a remote user may be using
1126                  */
1127                 if (strcasecmp(a->second->GetIPString(), u2) == 0)
1128                         x++;
1129         }
1130
1131         return x;
1132 }
1133
1134 long userrec::LocalCloneCount()
1135 {
1136         long x = 0;
1137         for (std::vector<userrec*>::const_iterator a = ServerInstance->local_users.begin(); a != ServerInstance->local_users.end(); a++)
1138         {
1139                 userrec* comp = *a;
1140 #ifdef IPV6
1141                 /* I dont think theres any faster way of matching two ipv6 addresses than memcmp */
1142                 in6_addr* s1 = &(((sockaddr_in6*)comp->ip)->sin6_addr);
1143                 in6_addr* s2 = &(((sockaddr_in6*)this->ip)->sin6_addr);
1144                 if (!memcmp(s1->s6_addr, s2->s6_addr, sizeof(in6_addr)))
1145                         x++;
1146 #else
1147                 in_addr* s1 = &((sockaddr_in*)comp->ip)->sin_addr;
1148                 in_addr* s2 = &((sockaddr_in*)this->ip)->sin_addr;
1149                 if (s1->s_addr == s2->s_addr)
1150                         x++;
1151 #endif
1152         }
1153         return x;
1154 }
1155
1156 void userrec::FullConnect(CullList* Goners)
1157 {
1158         ServerInstance->stats->statsConnects++;
1159         this->idle_lastmsg = ServerInstance->Time();
1160
1161         ConnectClass a = this->GetClass();
1162
1163         if (a.type == CC_DENY)
1164         {
1165                 Goners->AddItem(this,"Unauthorised connection");
1166                 return;
1167         }
1168
1169         if ((*(a.pass.c_str())) && (!this->haspassed))
1170         {
1171                 Goners->AddItem(this,"Invalid password");
1172                 return;
1173         }
1174
1175         if (this->LocalCloneCount() > a.maxlocal)
1176         {
1177                 Goners->AddItem(this, "No more connections allowed from your host via this connect class (local)");
1178                 ServerInstance->WriteOpers("*** WARNING: maximum LOCAL connections (%ld) exceeded for IP %s", a.maxlocal, this->GetIPString());
1179                 return;
1180         }
1181         else if (this->GlobalCloneCount() > a.maxglobal)
1182         {
1183                 Goners->AddItem(this, "No more connections allowed from your host via this connect class (global)");
1184                 ServerInstance->WriteOpers("*** WARNING: maximum GLOBAL connections (%ld) exceeded for IP %s",a.maxglobal, this->GetIPString());
1185                 return;
1186         }
1187
1188         ELine* e = ServerInstance->XLines->matches_exception(this);
1189
1190         if (!e)
1191         {
1192                 GLine* r = ServerInstance->XLines->matches_gline(this);
1193
1194                 if (r)
1195                 {
1196                         char reason[MAXBUF];
1197                         snprintf(reason,MAXBUF,"G-Lined: %s",r->reason);
1198                         Goners->AddItem(this, reason);
1199                         return;
1200                 }
1201
1202                 KLine* n = ServerInstance->XLines->matches_kline(this);
1203
1204                 if (n)
1205                 {
1206                         char reason[MAXBUF];
1207                         snprintf(reason,MAXBUF,"K-Lined: %s",n->reason);
1208                         Goners->AddItem(this, reason);
1209                         return;
1210                 }
1211         }
1212
1213
1214         this->WriteServ("NOTICE Auth :Welcome to \002%s\002!",ServerInstance->Config->Network);
1215         this->WriteServ("001 %s :Welcome to the %s IRC Network %s!%s@%s",this->nick, ServerInstance->Config->Network, this->nick, this->ident, this->host);
1216         this->WriteServ("002 %s :Your host is %s, running version %s",this->nick,ServerInstance->Config->ServerName,VERSION);
1217         this->WriteServ("003 %s :This server was created %s %s", this->nick, __TIME__, __DATE__);
1218         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());
1219
1220         // anfl @ #ratbox, efnet reminded me that according to the RFC this cant contain more than 13 tokens per line...
1221         // so i'd better split it :)
1222         std::stringstream out(ServerInstance->Config->data005);
1223         std::string token = "";
1224         std::string line5 = "";
1225         int token_counter = 0;
1226
1227         while (!out.eof())
1228         {
1229                 out >> token;
1230                 line5 = line5 + token + " ";
1231                 token_counter++;
1232
1233                 if ((token_counter >= 13) || (out.eof() == true))
1234                 {
1235                         this->WriteServ("005 %s %s:are supported by this server", this->nick, line5.c_str());
1236                         line5 = "";
1237                         token_counter = 0;
1238                 }
1239         }
1240
1241         this->ShowMOTD();
1242
1243         /*
1244          * fix 3 by brain, move registered = 7 below these so that spurious modes and host
1245          * changes dont go out onto the network and produce 'fake direction'.
1246          */
1247         FOREACH_MOD(I_OnUserConnect,OnUserConnect(this));
1248
1249         this->registered = REG_ALL;
1250
1251         FOREACH_MOD(I_OnPostConnect,OnPostConnect(this));
1252
1253         ServerInstance->SNO->WriteToSnoMask('c',"Client connecting on port %d: %s!%s@%s [%s]", this->GetPort(), this->nick, this->ident, this->host, this->GetIPString());
1254 }
1255
1256 /** userrec::UpdateNick()
1257  * re-allocates a nick in the user_hash after they change nicknames,
1258  * returns a pointer to the new user as it may have moved
1259  */
1260 userrec* userrec::UpdateNickHash(const char* New)
1261 {
1262         try
1263         {
1264                 //user_hash::iterator newnick;
1265                 user_hash::iterator oldnick = ServerInstance->clientlist.find(this->nick);
1266
1267                 if (!strcasecmp(this->nick,New))
1268                         return oldnick->second;
1269
1270                 if (oldnick == ServerInstance->clientlist.end())
1271                         return NULL; /* doesnt exist */
1272
1273                 userrec* olduser = oldnick->second;
1274                 ServerInstance->clientlist[New] = olduser;
1275                 ServerInstance->clientlist.erase(oldnick);
1276                 return ServerInstance->clientlist[New];
1277         }
1278
1279         catch (...)
1280         {
1281                 ServerInstance->Log(DEBUG,"Exception in userrec::UpdateNickHash()");
1282                 return NULL;
1283         }
1284 }
1285
1286 bool userrec::ForceNickChange(const char* newnick)
1287 {
1288         try
1289         {
1290                 int MOD_RESULT = 0;
1291
1292                 FOREACH_RESULT(I_OnUserPreNick,OnUserPreNick(this, newnick));
1293
1294                 if (MOD_RESULT)
1295                 {
1296                         ServerInstance->stats->statsCollisions++;
1297                         return false;
1298                 }
1299
1300                 if (ServerInstance->XLines->matches_qline(newnick))
1301                 {
1302                         ServerInstance->stats->statsCollisions++;
1303                         return false;
1304                 }
1305
1306                 if (this->registered == REG_ALL)
1307                 {
1308                         const char* pars[1];
1309                         pars[0] = newnick;
1310                         std::string cmd = "NICK";
1311                         return (ServerInstance->Parser->CallHandler(cmd, pars, 1, this) == CMD_SUCCESS);
1312                 }
1313                 return false;
1314         }
1315
1316         catch (...)
1317         {
1318                 ServerInstance->Log(DEBUG,"Exception in userrec::ForceNickChange()");
1319                 return false;
1320         }
1321 }
1322
1323 void userrec::SetSockAddr(int protocol_family, const char* ip, int port)
1324 {
1325         switch (protocol_family)
1326         {
1327 #ifdef SUPPORT_IP6LINKS
1328                 case AF_INET6:
1329                 {
1330                         ServerInstance->Log(DEBUG,"Set inet6 protocol address");
1331                         sockaddr_in6* sin = new sockaddr_in6;
1332                         sin->sin6_family = AF_INET6;
1333                         sin->sin6_port = port;
1334                         inet_pton(AF_INET6, ip, &sin->sin6_addr);
1335                         this->ip = (sockaddr*)sin;
1336                 }
1337                 break;
1338 #endif
1339                 case AF_INET:
1340                 {
1341                         ServerInstance->Log(DEBUG,"Set inet4 protocol address");
1342                         sockaddr_in* sin = new sockaddr_in;
1343                         sin->sin_family = AF_INET;
1344                         sin->sin_port = port;
1345                         inet_pton(AF_INET, ip, &sin->sin_addr);
1346                         this->ip = (sockaddr*)sin;
1347                 }
1348                 break;
1349                 default:
1350                         ServerInstance->Log(DEBUG,"Ut oh, I dont know protocol %d to be set on '%s'!", protocol_family, this->nick);
1351                 break;
1352         }
1353 }
1354
1355 int userrec::GetPort()
1356 {
1357         if (this->ip == NULL)
1358                 return 0;
1359
1360         switch (this->GetProtocolFamily())
1361         {
1362 #ifdef SUPPORT_IP6LINKS
1363                 case AF_INET6:
1364                 {
1365                         sockaddr_in6* sin = (sockaddr_in6*)this->ip;
1366                         return sin->sin6_port;
1367                 }
1368                 break;
1369 #endif
1370                 case AF_INET:
1371                 {
1372                         sockaddr_in* sin = (sockaddr_in*)this->ip;
1373                         return sin->sin_port;
1374                 }
1375                 break;
1376                 default:
1377                         ServerInstance->Log(DEBUG,"Ut oh, '%s' has an unknown protocol family!",this->nick);
1378                 break;
1379         }
1380         return 0;
1381 }
1382
1383 int userrec::GetProtocolFamily()
1384 {
1385         if (this->ip == NULL)
1386                 return 0;
1387
1388         sockaddr_in* sin = (sockaddr_in*)this->ip;
1389         return sin->sin_family;
1390 }
1391
1392 const char* userrec::GetIPString()
1393 {
1394         static char buf[1024];
1395
1396         if (this->ip == NULL)
1397                 return "";
1398
1399         switch (this->GetProtocolFamily())
1400         {
1401 #ifdef SUPPORT_IP6LINKS
1402                 case AF_INET6:
1403                 {
1404                         static char temp[1024];
1405
1406                         sockaddr_in6* sin = (sockaddr_in6*)this->ip;
1407                         inet_ntop(sin->sin6_family, &sin->sin6_addr, buf, sizeof(buf));
1408                         /* IP addresses starting with a : on irc are a Bad Thing (tm) */
1409                         if (*buf == ':')
1410                         {
1411                                 strlcpy(&temp[1], buf, sizeof(temp) - 1);
1412                                 *temp = '0';
1413                                 return temp;
1414                         }
1415                         return buf;
1416                 }
1417                 break;
1418 #endif
1419                 case AF_INET:
1420                 {
1421                         sockaddr_in* sin = (sockaddr_in*)this->ip;
1422                         inet_ntop(sin->sin_family, &sin->sin_addr, buf, sizeof(buf));
1423                         return buf;
1424                 }
1425                 break;
1426                 default:
1427                         ServerInstance->Log(DEBUG,"Ut oh, '%s' has an unknown protocol family!",this->nick);
1428                 break;
1429         }
1430         return "";
1431 }
1432
1433 const char* userrec::GetIPString(char* buf)
1434 {
1435         if (this->ip == NULL)
1436         {
1437                 *buf = 0;
1438                 return buf;
1439         }
1440
1441         switch (this->GetProtocolFamily())
1442         {
1443 #ifdef SUPPORT_IP6LINKS
1444                 case AF_INET6:
1445                 {
1446                         static char temp[1024];
1447
1448                         sockaddr_in6* sin = (sockaddr_in6*)this->ip;
1449                         inet_ntop(sin->sin6_family, &sin->sin6_addr, buf, sizeof(buf));
1450                         /* IP addresses starting with a : on irc are a Bad Thing (tm) */
1451                         if (*buf == ':')
1452                         {
1453                                 strlcpy(&temp[1], buf, sizeof(temp) - 1);
1454                                 *temp = '0';
1455                                 strlcpy(buf, temp, sizeof(temp));
1456                         }
1457                         return buf;
1458                 }
1459                 break;
1460 #endif
1461                 case AF_INET:
1462                 {
1463                         sockaddr_in* sin = (sockaddr_in*)this->ip;
1464                         inet_ntop(sin->sin_family, &sin->sin_addr, buf, sizeof(buf));
1465                         return buf;
1466                 }
1467                 break;
1468
1469                 default:
1470                         ServerInstance->Log(DEBUG,"Ut oh, '%s' has an unknown protocol family!",this->nick);
1471                 break;
1472         }
1473         return "";
1474 }
1475
1476 /** NOTE: We cannot pass a const reference to this method.
1477  * The string is changed by the workings of the method,
1478  * so that if we pass const ref, we end up copying it to
1479  * something we can change anyway. Makes sense to just let
1480  * the compiler do that copy for us.
1481  */
1482 void userrec::Write(std::string text)
1483 {
1484         if ((this->fd < 0) || (this->fd > MAX_DESCRIPTORS))
1485                 return;
1486
1487         try
1488         {
1489                 text.append("\r\n");
1490         }
1491         catch (...)
1492         {
1493                 ServerInstance->Log(DEBUG,"Exception in userrec::Write() std::string::append");
1494                 return;
1495         }
1496
1497         if (ServerInstance->Config->GetIOHook(this->GetPort()))
1498         {
1499                 try
1500                 {
1501                         ServerInstance->Config->GetIOHook(this->GetPort())->OnRawSocketWrite(this->fd, text.data(), text.length());
1502                 }
1503                 catch (ModuleException& modexcept)
1504                 {
1505                         ServerInstance->Log(DEBUG,"Module exception caught: %s",modexcept.GetReason());
1506                 }
1507         }
1508         else
1509         {
1510                 this->AddWriteBuf(text);
1511         }
1512         ServerInstance->stats->statsSent += text.length();
1513         this->ServerInstance->SE->WantWrite(this);
1514 }
1515
1516 /** Write()
1517  */
1518 void userrec::Write(const char *text, ...)
1519 {
1520         va_list argsPtr;
1521         char textbuffer[MAXBUF];
1522
1523         va_start(argsPtr, text);
1524         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
1525         va_end(argsPtr);
1526
1527         this->Write(std::string(textbuffer));
1528 }
1529
1530 void userrec::WriteServ(const std::string& text)
1531 {
1532         char textbuffer[MAXBUF];
1533
1534         snprintf(textbuffer,MAXBUF,":%s %s",ServerInstance->Config->ServerName,text.c_str());
1535         this->Write(std::string(textbuffer));
1536 }
1537
1538 /** WriteServ()
1539  *  Same as Write(), except `text' is prefixed with `:server.name '.
1540  */
1541 void userrec::WriteServ(const char* text, ...)
1542 {
1543         va_list argsPtr;
1544         char textbuffer[MAXBUF];
1545
1546         va_start(argsPtr, text);
1547         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
1548         va_end(argsPtr);
1549
1550         this->WriteServ(std::string(textbuffer));
1551 }
1552
1553
1554 void userrec::WriteFrom(userrec *user, const std::string &text)
1555 {
1556         char tb[MAXBUF];
1557
1558         snprintf(tb,MAXBUF,":%s %s",user->GetFullHost(),text.c_str());
1559
1560         this->Write(std::string(tb));
1561 }
1562
1563
1564 /* write text from an originating user to originating user */
1565
1566 void userrec::WriteFrom(userrec *user, const char* text, ...)
1567 {
1568         va_list argsPtr;
1569         char textbuffer[MAXBUF];
1570
1571         va_start(argsPtr, text);
1572         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
1573         va_end(argsPtr);
1574
1575         this->WriteFrom(user, std::string(textbuffer));
1576 }
1577
1578
1579 /* write text to an destination user from a source user (e.g. user privmsg) */
1580
1581 void userrec::WriteTo(userrec *dest, const char *data, ...)
1582 {
1583         char textbuffer[MAXBUF];
1584         va_list argsPtr;
1585
1586         va_start(argsPtr, data);
1587         vsnprintf(textbuffer, MAXBUF, data, argsPtr);
1588         va_end(argsPtr);
1589
1590         this->WriteTo(dest, std::string(textbuffer));
1591 }
1592
1593 void userrec::WriteTo(userrec *dest, const std::string &data)
1594 {
1595         dest->WriteFrom(this, data);
1596 }
1597
1598
1599 void userrec::WriteCommon(const char* text, ...)
1600 {
1601         char textbuffer[MAXBUF];
1602         va_list argsPtr;
1603
1604         if (this->registered != REG_ALL)
1605                 return;
1606
1607         va_start(argsPtr, text);
1608         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
1609         va_end(argsPtr);
1610
1611         this->WriteCommon(std::string(textbuffer));
1612 }
1613
1614 void userrec::WriteCommon(const std::string &text)
1615 {
1616         try
1617         {
1618                 bool sent_to_at_least_one = false;
1619
1620                 if (this->registered != REG_ALL)
1621                         return;
1622
1623                 uniq_id++;
1624
1625                 for (std::vector<ucrec*>::const_iterator v = this->chans.begin(); v != this->chans.end(); v++)
1626                 {
1627                         ucrec *n = *v;
1628                         if (n->channel)
1629                         {
1630                                 CUList *ulist= n->channel->GetUsers();
1631
1632                                 for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
1633                                 {
1634                                         if ((IS_LOCAL(i->second)) && (already_sent[i->second->fd] != uniq_id))
1635                                         {
1636                                                 already_sent[i->second->fd] = uniq_id;
1637                                                 i->second->WriteFrom(this, std::string(text));
1638                                                 sent_to_at_least_one = true;
1639                                         }
1640                                 }
1641                         }
1642                 }
1643
1644                 /*
1645                  * if the user was not in any channels, no users will receive the text. Make sure the user
1646                  * receives their OWN message for WriteCommon
1647                  */
1648                 if (!sent_to_at_least_one)
1649                 {
1650                         this->WriteFrom(this,std::string(text));
1651                 }
1652         }
1653
1654         catch (...)
1655         {
1656                 ServerInstance->Log(DEBUG,"Exception in userrec::WriteCommon()");
1657         }
1658 }
1659
1660
1661 /* write a formatted string to all users who share at least one common
1662  * channel, NOT including the source user e.g. for use in QUIT
1663  */
1664
1665 void userrec::WriteCommonExcept(const char* text, ...)
1666 {
1667         char textbuffer[MAXBUF];
1668         va_list argsPtr;
1669
1670         va_start(argsPtr, text);
1671         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
1672         va_end(argsPtr);
1673
1674         this->WriteCommonExcept(std::string(textbuffer));
1675 }
1676
1677 void userrec::WriteCommonExcept(const std::string &text)
1678 {
1679         bool quit_munge = false;
1680         char oper_quit[MAXBUF];
1681         char textbuffer[MAXBUF];
1682
1683         strlcpy(textbuffer, text.c_str(), MAXBUF);
1684
1685         if (this->registered != REG_ALL)
1686                 return;
1687
1688         uniq_id++;
1689
1690         /* TODO: We need some form of WriteCommonExcept that will send two lines, one line to
1691          * opers and the other line to non-opers, then all this hidebans and hidesplits gunk
1692          * can go byebye.
1693          */
1694         if (ServerInstance->Config->HideSplits)
1695         {
1696                 char* check = textbuffer + 6;
1697
1698                 if (!strncasecmp(textbuffer, "QUIT :",6))
1699                 {
1700                         std::stringstream split(check);
1701                         std::string server_one;
1702                         std::string server_two;
1703
1704                         split >> server_one;
1705                         split >> server_two;
1706
1707                         if ((ServerInstance->FindServerName(server_one)) && (ServerInstance->FindServerName(server_two)))
1708                         {
1709                                 strlcpy(oper_quit,textbuffer,MAXQUIT);
1710                                 strlcpy(check,"*.net *.split",MAXQUIT);
1711                                 quit_munge = true;
1712                         }
1713                 }
1714         }
1715
1716         if ((ServerInstance->Config->HideBans) && (!quit_munge))
1717         {
1718                 if ((!strncasecmp(textbuffer, "QUIT :G-Lined:",14)) || (!strncasecmp(textbuffer, "QUIT :K-Lined:",14))
1719                 || (!strncasecmp(textbuffer, "QUIT :Q-Lined:",14)) || (!strncasecmp(textbuffer, "QUIT :Z-Lined:",14)))
1720                 {
1721                         char* check = textbuffer + 13;
1722                         strlcpy(oper_quit,textbuffer,MAXQUIT);
1723                         *check = 0;  // We don't need to strlcpy, we just chop it from the :
1724                         quit_munge = true;
1725                 }
1726         }
1727
1728         for (std::vector<ucrec*>::const_iterator v = this->chans.begin(); v != this->chans.end(); v++)
1729         {
1730                 ucrec* n = *v;
1731                 if (n->channel)
1732                 {
1733                         CUList *ulist= n->channel->GetUsers();
1734
1735                         for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
1736                         {
1737                                 if (this != i->second)
1738                                 {
1739                                         if ((IS_LOCAL(i->second)) && (already_sent[i->second->fd] != uniq_id))
1740                                         {
1741                                                 already_sent[i->second->fd] = uniq_id;
1742                                                 if (quit_munge)
1743                                                         i->second->WriteFrom(this, *i->second->oper ? std::string(oper_quit) : std::string(textbuffer));
1744                                                 else
1745                                                         i->second->WriteFrom(this, std::string(textbuffer));
1746                                         }
1747                                 }
1748                         }
1749                 }
1750         }
1751
1752 }
1753
1754 void userrec::WriteWallOps(const std::string &text)
1755 {
1756         /* Does nothing if theyre not opered */
1757         if ((!*this->oper) && (IS_LOCAL(this)))
1758                 return;
1759
1760         std::string wallop = "WALLOPS :";
1761
1762         try
1763         {
1764                 wallop.append(text);
1765         }
1766         catch (...)
1767         {
1768                 ServerInstance->Log(DEBUG,"Exception in userrec::Write() std::string::append");
1769                 return;
1770         }
1771
1772         for (std::vector<userrec*>::const_iterator i = ServerInstance->local_users.begin(); i != ServerInstance->local_users.end(); i++)
1773         {
1774                 userrec* t = *i;
1775                 if ((IS_LOCAL(t)) && (t->modes[UM_WALLOPS]))
1776                         this->WriteTo(t,wallop);
1777         }
1778 }
1779
1780 void userrec::WriteWallOps(const char* text, ...)
1781 {
1782         char textbuffer[MAXBUF];
1783         va_list argsPtr;
1784
1785         va_start(argsPtr, text);
1786         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
1787         va_end(argsPtr);
1788
1789         this->WriteWallOps(std::string(textbuffer));
1790 }
1791
1792 /* return 0 or 1 depending if users u and u2 share one or more common channels
1793  * (used by QUIT, NICK etc which arent channel specific notices)
1794  *
1795  * The old algorithm in 1.0 for this was relatively inefficient, iterating over
1796  * the first users channels then the second users channels within the outer loop,
1797  * therefore it was a maximum of x*y iterations (upon returning 0 and checking
1798  * all possible iterations). However this new function instead checks against the
1799  * channel's userlist in the inner loop which is a std::map<userrec*,userrec*>
1800  * and saves us time as we already know what pointer value we are after.
1801  * Don't quote me on the maths as i am not a mathematician or computer scientist,
1802  * but i believe this algorithm is now x+(log y) maximum iterations instead.
1803  */
1804 bool userrec::SharesChannelWith(userrec *other)
1805 {
1806         if ((!other) || (this->registered != REG_ALL) || (other->registered != REG_ALL))
1807                 return false;
1808
1809         /* Outer loop */
1810         for (std::vector<ucrec*>::const_iterator i = this->chans.begin(); i != this->chans.end(); i++)
1811         {
1812                 /* Fetch the channel from the user */
1813                 ucrec* user_channel = *i;
1814
1815                 if (user_channel->channel)
1816                 {
1817                         /* Eliminate the inner loop (which used to be ~equal in size to the outer loop)
1818                          * by replacing it with a map::find which *should* be more efficient
1819                          */
1820                         if (user_channel->channel->HasUser(other))
1821                                 return true;
1822                 }
1823         }
1824         return false;
1825 }
1826
1827 int userrec::CountChannels()
1828 {
1829         return ChannelCount;
1830 }
1831
1832 void userrec::ModChannelCount(int n)
1833 {
1834         ChannelCount += n;
1835 }
1836
1837 bool userrec::ChangeName(const char* gecos)
1838 {
1839         if (!strcmp(gecos, this->fullname))
1840                 return true;
1841
1842         if (IS_LOCAL(this))
1843         {
1844                 int MOD_RESULT = 0;
1845                 FOREACH_RESULT(I_OnChangeLocalUserGECOS,OnChangeLocalUserGECOS(this,gecos));
1846                 if (MOD_RESULT)
1847                         return false;
1848                 FOREACH_MOD(I_OnChangeName,OnChangeName(this,gecos));
1849         }
1850         strlcpy(this->fullname,gecos,MAXGECOS+1);
1851         return true;
1852 }
1853
1854 bool userrec::ChangeDisplayedHost(const char* host)
1855 {
1856         if (!strcmp(host, this->dhost))
1857                 return true;
1858
1859         if (IS_LOCAL(this))
1860         {
1861                 int MOD_RESULT = 0;
1862                 FOREACH_RESULT(I_OnChangeLocalUserHost,OnChangeLocalUserHost(this,host));
1863                 if (MOD_RESULT)
1864                         return false;
1865                 FOREACH_MOD(I_OnChangeHost,OnChangeHost(this,host));
1866         }
1867         if (this->ServerInstance->Config->CycleHosts)
1868                 this->WriteCommonExcept("%s","QUIT :Changing hosts");
1869
1870         /* Fix by Om: userrec::dhost is 65 long, this was truncating some long hosts */
1871         strlcpy(this->dhost,host,64);
1872
1873         if (this->ServerInstance->Config->CycleHosts)
1874         {
1875                 for (std::vector<ucrec*>::const_iterator i = this->chans.begin(); i != this->chans.end(); i++)
1876                 {
1877                         if ((*i)->channel)
1878                         {
1879                                 (*i)->channel->WriteAllExceptSender(this, false, 0, "JOIN %s", (*i)->channel->name);
1880                                 std::string n = this->ServerInstance->Modes->ModeString(this, (*i)->channel);
1881                                 if (n.length() > 0)
1882                                         (*i)->channel->WriteAllExceptSender(this, true, 0, "MODE %s +%s", (*i)->channel->name, n.c_str());
1883                         }
1884                 }
1885         }
1886
1887         if (IS_LOCAL(this))
1888                 this->WriteServ("396 %s %s :is now your hidden host",this->nick,this->dhost);
1889
1890         return true;
1891 }
1892
1893 bool userrec::ChangeIdent(const char* newident)
1894 {
1895         if (!strcmp(newident, this->ident))
1896                 return true;
1897
1898         if (this->ServerInstance->Config->CycleHosts)
1899                 this->WriteCommonExcept("%s","QUIT :Changing ident");
1900
1901         strlcpy(this->ident, newident, IDENTMAX+2);
1902
1903         if (this->ServerInstance->Config->CycleHosts)
1904         {
1905                 for (std::vector<ucrec*>::const_iterator i = this->chans.begin(); i != this->chans.end(); i++)
1906                 {
1907                         if ((*i)->channel)
1908                         {
1909                                 (*i)->channel->WriteAllExceptSender(this, false, 0, "JOIN %s", (*i)->channel->name);
1910                                 std::string n = this->ServerInstance->Modes->ModeString(this, (*i)->channel);
1911                                 if (n.length() > 0)
1912                                         (*i)->channel->WriteAllExceptSender(this, true, 0, "MODE %s +%s", (*i)->channel->name, n.c_str());
1913                         }
1914                 }
1915         }
1916
1917         return true;
1918 }
1919
1920 void userrec::NoticeAll(char* text, ...)
1921 {
1922         char textbuffer[MAXBUF];
1923         char formatbuffer[MAXBUF];
1924         va_list argsPtr;
1925
1926         va_start(argsPtr, text);
1927         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
1928         va_end(argsPtr);
1929
1930         snprintf(formatbuffer,MAXBUF,"NOTICE $* :%s",textbuffer);
1931
1932         for (std::vector<userrec*>::const_iterator i = ServerInstance->local_users.begin(); i != ServerInstance->local_users.end(); i++)
1933         {
1934                 userrec* t = *i;
1935                 t->WriteFrom(this, std::string(formatbuffer));
1936         }
1937 }
1938
1939
1940 std::string userrec::ChannelList(userrec* source)
1941 {
1942         try
1943         {
1944                 std::string list;
1945                 for (std::vector<ucrec*>::const_iterator i = this->chans.begin(); i != this->chans.end(); i++)
1946                 {
1947                         ucrec* rec = *i;
1948
1949                         if(rec->channel && rec->channel->name)
1950                         {
1951                                 /* If the target is the same as the sender, let them see all their channels.
1952                                  * If the channel is NOT private/secret OR the user shares a common channel
1953                                  * If the user is an oper, and the <options:operspywhois> option is set.
1954                                  */
1955                                 if ((source == this) || (*source->oper && ServerInstance->Config->OperSpyWhois) || (((!rec->channel->modes[CM_PRIVATE]) && (!rec->channel->modes[CM_SECRET])) || (rec->channel->HasUser(source))))
1956                                 {
1957                                         list.append(rec->channel->GetPrefixChar(this)).append(rec->channel->name).append(" ");
1958                                 }
1959                         }
1960                 }
1961                 return list;
1962         }
1963         catch (...)
1964         {
1965                 ServerInstance->Log(DEBUG,"Exception in userrec::ChannelList()");
1966                 return "";
1967         }
1968 }
1969
1970 void userrec::SplitChanList(userrec* dest, const std::string &cl)
1971 {
1972         std::string line;
1973         std::ostringstream prefix;
1974         std::string::size_type start, pos, length;
1975
1976         try
1977         {
1978                 prefix << this->nick << " " << dest->nick << " :";
1979                 line = prefix.str();
1980                 int namelen = strlen(ServerInstance->Config->ServerName) + 6;
1981
1982                 for (start = 0; (pos = cl.find(' ', start)) != std::string::npos; start = pos+1)
1983                 {
1984                         length = (pos == std::string::npos) ? cl.length() : pos;
1985
1986                         if (line.length() + namelen + length - start > 510)
1987                         {
1988                                 this->Write(line);
1989                                 line = prefix.str();
1990                         }
1991
1992                         if(pos == std::string::npos)
1993                         {
1994                                 line.append(cl.substr(start, length - start));
1995                                 break;
1996                         }
1997                         else
1998                         {
1999                                 line.append(cl.substr(start, length - start + 1));
2000                         }
2001                 }
2002
2003                 if (line.length())
2004                 {
2005                         ServerInstance->SendWhoisLine(this, dest, 319, "%s", line.c_str());
2006                 }
2007         }
2008
2009         catch (...)
2010         {
2011                 ServerInstance->Log(DEBUG,"Exception in userrec::SplitChanList()");
2012         }
2013 }
2014
2015
2016 /* looks up a users password for their connection class (<ALLOW>/<DENY> tags)
2017  * NOTE: If the <ALLOW> or <DENY> tag specifies an ip, and this user resolves,
2018  * then their ip will be taken as 'priority' anyway, so for example,
2019  * <connect allow="127.0.0.1"> will match joe!bloggs@localhost
2020  */
2021 ConnectClass& userrec::GetClass()
2022 {
2023         for (ClassVector::iterator i = ServerInstance->Config->Classes.begin(); i != ServerInstance->Config->Classes.end(); i++)
2024         {
2025                 if ((match(this->GetIPString(),i->host.c_str(),true)) || (match(this->host,i->host.c_str())))
2026                         return *i;
2027         }
2028
2029         return *(ServerInstance->Config->Classes.begin());
2030 }
2031
2032 void userrec::PurgeEmptyChannels()
2033 {
2034         std::vector<chanrec*> to_delete;
2035
2036         // firstly decrement the count on each channel
2037         for (std::vector<ucrec*>::iterator f = this->chans.begin(); f != this->chans.end(); f++)
2038         {
2039                 ucrec* uc = *f;
2040                 if (uc->channel)
2041                 {
2042                         uc->channel->RemoveAllPrefixes(this);
2043                         if (uc->channel->DelUser(this) == 0)
2044                         {
2045                                 /* No users left in here, mark it for deletion */
2046                                 try
2047                                 {
2048                                         to_delete.push_back(uc->channel);
2049                                 }
2050                                 catch (...)
2051                                 {
2052                                         ServerInstance->Log(DEBUG,"Exception in userrec::PurgeEmptyChannels to_delete.push_back()");
2053                                 }
2054                                 uc->channel = NULL;
2055                         }
2056                 }
2057         }
2058
2059         for (std::vector<chanrec*>::iterator n = to_delete.begin(); n != to_delete.end(); n++)
2060         {
2061                 chanrec* thischan = *n;
2062                 chan_hash::iterator i2 = ServerInstance->chanlist.find(thischan->name);
2063                 if (i2 != ServerInstance->chanlist.end())
2064                 {
2065                         FOREACH_MOD(I_OnChannelDelete,OnChannelDelete(i2->second));
2066                         DELETE(i2->second);
2067                         ServerInstance->chanlist.erase(i2);
2068                 }
2069         }
2070
2071         this->UnOper();
2072 }
2073
2074 void userrec::ShowMOTD()
2075 {
2076         if (!ServerInstance->Config->MOTD.size())
2077         {
2078                 this->WriteServ("422 %s :Message of the day file is missing.",this->nick);
2079                 return;
2080         }
2081         this->WriteServ("375 %s :%s message of the day", this->nick, ServerInstance->Config->ServerName);
2082
2083         for (unsigned int i = 0; i < ServerInstance->Config->MOTD.size(); i++)
2084                 this->WriteServ("372 %s :- %s",this->nick,ServerInstance->Config->MOTD[i].c_str());
2085
2086         this->WriteServ("376 %s :End of message of the day.", this->nick);
2087 }
2088
2089 void userrec::ShowRULES()
2090 {
2091         if (!ServerInstance->Config->RULES.size())
2092         {
2093                 this->WriteServ("NOTICE %s :Rules file is missing.",this->nick);
2094                 return;
2095         }
2096         this->WriteServ("NOTICE %s :%s rules",this->nick,ServerInstance->Config->ServerName);
2097
2098         for (unsigned int i = 0; i < ServerInstance->Config->RULES.size(); i++)
2099                 this->WriteServ("NOTICE %s :%s",this->nick,ServerInstance->Config->RULES[i].c_str());
2100
2101         this->WriteServ("NOTICE %s :End of %s rules.",this->nick,ServerInstance->Config->ServerName);
2102 }
2103
2104 void userrec::HandleEvent(EventType et, int errornum)
2105 {
2106         /* WARNING: May delete this user! */
2107         try
2108         {
2109                 switch (et)
2110                 {
2111                         case EVENT_READ:
2112                                 ServerInstance->ProcessUser(this);
2113                         break;
2114                         case EVENT_WRITE:
2115                                 this->FlushWriteBuf();
2116                         break;
2117                         case EVENT_ERROR:
2118                                 this->SetWriteError(errornum ? strerror(errornum) : "EOF from client");
2119                         break;
2120                 }
2121         }
2122         catch (...)
2123         {
2124                 ServerInstance->Log(DEBUG,"Exception in userrec::HandleEvent intercepted");
2125         }
2126 }