src/users.cpp

   1 /*       +------------------------------------+
   2  *       | Inspire Internet Relay Chat Daemon |
   3  *       +------------------------------------+
   4  *
   5  *  InspIRCd: (C) 2002-2009 InspIRCd Development Team
   6  * See: http://wiki.inspircd.org/Credits
   7  *
   8  * This program is free but copyrighted software; see
   9  *            the file COPYING for details.
  10  *
  11  * ---------------------------------------------------
  12  */
  13
  14 /* $Core */
  15
  16 #include "inspircd.h"
  17 #include <stdarg.h>
  18 #include "socketengine.h"
  19 #include "xline.h"
  20 #include "bancache.h"
  21 #include "commands/cmd_whowas.h"
  22
  23 /* XXX: Used for speeding up WriteCommon operations */
  24 unsigned long uniq_id = 1;
  25
  26 static unsigned long* already_sent = NULL;
  27
  28
  29 void InitializeAlreadySent(SocketEngine* SE)
  30 {
  31         already_sent = new unsigned long[SE->GetMaxFds()];
  32         memset(already_sent, 0, SE->GetMaxFds() * sizeof(unsigned long));
  33 }
  34
  35
  36 std::string User::ProcessNoticeMasks(const char *sm)
  37 {
  38         bool adding = true, oldadding = false;
  39         const char *c = sm;
  40         std::string output;
  41
  42         while (c && *c)
  43         {
  44                 switch (*c)
  45                 {
  46                         case '+':
  47                                 adding = true;
  48                         break;
  49                         case '-':
  50                                 adding = false;
  51                         break;
  52                         case '*':
  53                                 for (unsigned char d = 'A'; d <= 'z'; d++)
  54                                 {
  55                                         if (ServerInstance->SNO->IsEnabled(d))
  56                                         {
  57                                                 if ((!IsNoticeMaskSet(d) && adding) || (IsNoticeMaskSet(d) && !adding))
  58                                                 {
  59                                                         if ((oldadding != adding) || (!output.length()))
  60                                                                 output += (adding ? '+' : '-');
  61
  62                                                         this->SetNoticeMask(d, adding);
  63
  64                                                         output += d;
  65                                                 }
  66                                         }
  67                                         oldadding = adding;
  68                                 }
  69                         break;
  70                         default:
  71                                 if ((*c >= 'A') && (*c <= 'z') && (ServerInstance->SNO->IsEnabled(*c)))
  72                                 {
  73                                         if ((!IsNoticeMaskSet(*c) && adding) || (IsNoticeMaskSet(*c) && !adding))
  74                                         {
  75                                                 if ((oldadding != adding) || (!output.length()))
  76                                                         output += (adding ? '+' : '-');
  77
  78                                                 this->SetNoticeMask(*c, adding);
  79
  80                                                 output += *c;
  81                                         }
  82                                 }
  83                                 else
  84                                         this->WriteNumeric(ERR_UNKNOWNSNOMASK, "%s %c :is unknown snomask char to me", this->nick.c_str(), *c);
  85
  86                                 oldadding = adding;
  87                         break;
  88                 }
  89
  90                 *c++;
  91         }
  92
  93         std::string s = this->FormatNoticeMasks();
  94         if (s.length() == 0)
  95         {
  96                 this->modes[UM_SNOMASK] = false;
  97         }
  98
  99         return output;
 100 }
 101
 102 void User::StartDNSLookup()
 103 {
 104         try
 105         {
 106                 bool cached = false;
 107                 const char* sip = this->GetIPString();
 108                 UserResolver *res_reverse;
 109
 110                 QueryType resolvtype = strchr(sip, ':') ? DNS_QUERY_PTR6 : DNS_QUERY_PTR4;
 111                 // when GetProtocolFamily() works correctly with 4in6, this can be replaced by
 112                 // this->GetProtocolFamily() == AF_INET ? DNS_QUERY_PTR4 : DNS_QUERY_PTR6;
 113                 res_reverse = new UserResolver(this->ServerInstance, this, sip, resolvtype, cached);
 114
 115                 this->ServerInstance->AddResolver(res_reverse, cached);
 116         }
 117         catch (CoreException& e)
 118         {
 119                 ServerInstance->Logs->Log("USERS", DEBUG,"Error in resolver: %s",e.GetReason());
 120         }
 121 }
 122
 123 bool User::IsNoticeMaskSet(unsigned char sm)
 124 {
 125         if (!isalpha(sm))
 126                 return false;
 127         return (snomasks[sm-65]);
 128 }
 129
 130 void User::SetNoticeMask(unsigned char sm, bool value)
 131 {
 132         if (!isalpha(sm))
 133                 return;
 134         snomasks[sm-65] = value;
 135 }
 136
 137 const char* User::FormatNoticeMasks()
 138 {
 139         static char data[MAXBUF];
 140         int offset = 0;
 141
 142         for (int n = 0; n < 64; n++)
 143         {
 144                 if (snomasks[n])
 145                         data[offset++] = n+65;
 146         }
 147
 148         data[offset] = 0;
 149         return data;
 150 }
 151
 152 bool User::IsModeSet(unsigned char m)
 153 {
 154         if (!isalpha(m))
 155                 return false;
 156         return (modes[m-65]);
 157 }
 158
 159 void User::SetMode(unsigned char m, bool value)
 160 {
 161         if (!isalpha(m))
 162                 return;
 163         modes[m-65] = value;
 164 }
 165
 166 const char* User::FormatModes(bool showparameters)
 167 {
 168         static char data[MAXBUF];
 169         std::string params;
 170         int offset = 0;
 171
 172         for (unsigned char n = 0; n < 64; n++)
 173         {
 174                 if (modes[n])
 175                 {
 176                         data[offset++] = n + 65;
 177                         ModeHandler* mh = ServerInstance->Modes->FindMode(n + 65, MODETYPE_USER);
 178                         if (showparameters && mh && mh->GetNumParams(true))
 179                         {
 180                                 std::string p = mh->GetUserParameter(this);
 181                                 if (p.length())
 182                                         params.append(" ").append(p);
 183                         }
 184                 }
 185         }
 186         data[offset] = 0;
 187         strlcat(data, params.c_str(), MAXBUF);
 188         return data;
 189 }
 190
 191 void User::DecrementModes()
 192 {
 193         ServerInstance->Logs->Log("USERS", DEBUG, "DecrementModes()");
 194         for (unsigned char n = 'A'; n <= 'z'; n++)
 195         {
 196                 if (modes[n-65])
 197                 {
 198                         ServerInstance->Logs->Log("USERS", DEBUG,"DecrementModes() found mode %c", n);
 199                         ModeHandler* mh = ServerInstance->Modes->FindMode(n, MODETYPE_USER);
 200                         if (mh)
 201                         {
 202                                 ServerInstance->Logs->Log("USERS", DEBUG,"Found handler %c and call ChangeCount", n);
 203                                 mh->ChangeCount(-1);
 204                         }
 205                 }
 206         }
 207 }
 208
 209 User::User(InspIRCd* Instance, const std::string &uid) : ServerInstance(Instance)
 210 {
 211         server = (char*)Instance->FindServerNamePtr(Instance->Config->ServerName);
 212         age = ServerInstance->Time();
 213         Penalty = 0;
 214         lastping = signon = idle_lastmsg = nping = registered = 0;
 215         bytes_in = bytes_out = cmds_in = cmds_out = 0;
 216         quietquit = quitting = exempt = haspassed = dns_done = false;
 217         fd = -1;
 218         recvq.clear();
 219         sendq.clear();
 220         Visibility = NULL;
 221         ip = NULL;
 222         MyClass = NULL;
 223         AllowedPrivs = AllowedOperCommands = NULL;
 224         chans.clear();
 225         invites.clear();
 226
 227         if (uid.empty())
 228                 uuid.assign(Instance->GetUID(), 0, UUID_LENGTH - 1);
 229         else
 230                 uuid.assign(uid, 0, UUID_LENGTH - 1);
 231
 232         ServerInstance->Logs->Log("USERS", DEBUG,"New UUID for user: %s (%s)", uuid.c_str(), uid.empty() ? "allocated new" : "used remote");
 233
 234         user_hash::iterator finduuid = Instance->Users->uuidlist->find(uuid);
 235         if (finduuid == Instance->Users->uuidlist->end())
 236                 (*Instance->Users->uuidlist)[uuid] = this;
 237         else
 238                 throw CoreException("Duplicate UUID "+std::string(uuid)+" in User constructor");
 239 }
 240
 241 User::~User()
 242 {
 243         /* NULL for remote users :) */
 244         if (this->MyClass)
 245         {
 246                 this->MyClass->RefCount--;
 247                 ServerInstance->Logs->Log("USERS", DEBUG, "User destructor -- connect refcount now: %lu", this->MyClass->RefCount);
 248         }
 249
 250         if (this->AllowedOperCommands)
 251         {
 252                 delete AllowedOperCommands;
 253                 AllowedOperCommands = NULL;
 254         }
 255
 256         if (this->AllowedPrivs)
 257         {
 258                 delete AllowedPrivs;
 259                 AllowedPrivs = NULL;
 260         }
 261
 262         this->InvalidateCache();
 263         this->DecrementModes();
 264
 265         if (ip)
 266         {
 267                 ServerInstance->Users->RemoveCloneCounts(this);
 268
 269                 if (this->GetProtocolFamily() == AF_INET)
 270                 {
 271                         delete (sockaddr_in*)ip;
 272                 }
 273 #ifdef SUPPORT_IP6LINKS
 274                 else
 275                 {
 276                         delete (sockaddr_in6*)ip;
 277                 }
 278 #endif
 279         }
 280
 281         ServerInstance->Users->uuidlist->erase(uuid);
 282 }
 283
 284 const std::string& User::MakeHost()
 285 {
 286         if (!this->cached_makehost.empty())
 287                 return this->cached_makehost;
 288
 289         char nhost[MAXBUF];
 290         /* This is much faster than snprintf */
 291         char* t = nhost;
 292         for(const char* n = ident.c_str(); *n; n++)
 293                 *t++ = *n;
 294         *t++ = '@';
 295         for(const char* n = host.c_str(); *n; n++)
 296                 *t++ = *n;
 297         *t = 0;
 298
 299         this->cached_makehost.assign(nhost);
 300
 301         return this->cached_makehost;
 302 }
 303
 304 const std::string& User::MakeHostIP()
 305 {
 306         if (!this->cached_hostip.empty())
 307                 return this->cached_hostip;
 308
 309         char ihost[MAXBUF];
 310         /* This is much faster than snprintf */
 311         char* t = ihost;
 312         for(const char* n = ident.c_str(); *n; n++)
 313                 *t++ = *n;
 314         *t++ = '@';
 315         for(const char* n = this->GetIPString(); *n; n++)
 316                 *t++ = *n;
 317         *t = 0;
 318
 319         this->cached_hostip = ihost;
 320
 321         return this->cached_hostip;
 322 }
 323
 324 void User::CloseSocket()
 325 {
 326         if (this->fd > -1)
 327         {
 328                 ServerInstance->SE->Shutdown(this, 2);
 329                 ServerInstance->SE->Close(this);
 330         }
 331 }
 332
 333 const std::string User::GetFullHost()
 334 {
 335         if (!this->cached_fullhost.empty())
 336                 return this->cached_fullhost;
 337
 338         char result[MAXBUF];
 339         char* t = result;
 340         for(const char* n = nick.c_str(); *n; n++)
 341                 *t++ = *n;
 342         *t++ = '!';
 343         for(const char* n = ident.c_str(); *n; n++)
 344                 *t++ = *n;
 345         *t++ = '@';
 346         for(const char* n = dhost.c_str(); *n; n++)
 347                 *t++ = *n;
 348         *t = 0;
 349
 350         this->cached_fullhost = result;
 351
 352         return this->cached_fullhost;
 353 }
 354
 355 char* User::MakeWildHost()
 356 {
 357         static char nresult[MAXBUF];
 358         char* t = nresult;
 359         *t++ = '*';     *t++ = '!';
 360         *t++ = '*';     *t++ = '@';
 361         for(const char* n = dhost.c_str(); *n; n++)
 362                 *t++ = *n;
 363         *t = 0;
 364         return nresult;
 365 }
 366
 367 int User::ReadData(void* buffer, size_t size)
 368 {
 369         if (IS_LOCAL(this))
 370         {
 371 #ifndef WIN32
 372                 return read(this->fd, buffer, size);
 373 #else
 374                 return recv(this->fd, (char*)buffer, size, 0);
 375 #endif
 376         }
 377         else
 378                 return 0;
 379 }
 380
 381
 382 const std::string User::GetFullRealHost()
 383 {
 384         if (!this->cached_fullrealhost.empty())
 385                 return this->cached_fullrealhost;
 386
 387         char fresult[MAXBUF];
 388         char* t = fresult;
 389         for(const char* n = nick.c_str(); *n; n++)
 390                 *t++ = *n;
 391         *t++ = '!';
 392         for(const char* n = ident.c_str(); *n; n++)
 393                 *t++ = *n;
 394         *t++ = '@';
 395         for(const char* n = host.c_str(); *n; n++)
 396                 *t++ = *n;
 397         *t = 0;
 398
 399         this->cached_fullrealhost = fresult;
 400
 401         return this->cached_fullrealhost;
 402 }
 403
 404 bool User::IsInvited(const irc::string &channel)
 405 {
 406         time_t now = ServerInstance->Time();
 407         InvitedList::iterator safei;
 408         for (InvitedList::iterator i = invites.begin(); i != invites.end(); ++i)
 409         {
 410                 if (channel == i->first)
 411                 {
 412                         if (i->second != 0 && now > i->second)
 413                         {
 414                                 /* Expired invite, remove it. */
 415                                 safei = i;
 416                                 --i;
 417                                 invites.erase(safei);
 418                                 continue;
 419                         }
 420                         return true;
 421                 }
 422         }
 423         return false;
 424 }
 425
 426 InvitedList* User::GetInviteList()
 427 {
 428         time_t now = ServerInstance->Time();
 429         /* Weed out expired invites here. */
 430         InvitedList::iterator safei;
 431         for (InvitedList::iterator i = invites.begin(); i != invites.end(); ++i)
 432         {
 433                 if (i->second != 0 && now > i->second)
 434                 {
 435                         /* Expired invite, remove it. */
 436                         safei = i;
 437                         --i;
 438                         invites.erase(safei);
 439                 }
 440         }
 441         return &invites;
 442 }
 443
 444 void User::InviteTo(const irc::string &channel, time_t invtimeout)
 445 {
 446         time_t now = ServerInstance->Time();
 447         if (invtimeout != 0 && now > invtimeout) return; /* Don't add invites that are expired from the get-go. */
 448         for (InvitedList::iterator i = invites.begin(); i != invites.end(); ++i)
 449         {
 450                 if (channel == i->first)
 451                 {
 452                         if (i->second != 0 && invtimeout > i->second)
 453                         {
 454                                 i->second = invtimeout;
 455                         }
 456
 457                         return;
 458                 }
 459         }
 460         invites.push_back(std::make_pair(channel, invtimeout));
 461 }
 462
 463 void User::RemoveInvite(const irc::string &channel)
 464 {
 465         for (InvitedList::iterator i = invites.begin(); i != invites.end(); i++)
 466         {
 467                 if (channel == i->first)
 468                 {
 469                         invites.erase(i);
 470                         return;
 471                 }
 472         }
 473 }
 474
 475 bool User::HasModePermission(unsigned char mode, ModeType type)
 476 {
 477         if (!IS_LOCAL(this))
 478                 return true;
 479
 480         if (!IS_OPER(this))
 481                 return false;
 482
 483         if (mode < 'A' || mode > ('A' + 64)) return false;
 484
 485         return ((type == MODETYPE_USER ? AllowedUserModes : AllowedChanModes))[(mode - 'A')];
 486
 487 }
 488
 489 bool User::HasPermission(const std::string &command)
 490 {
 491         /*
 492          * users on remote servers can completely bypass all permissions based checks.
 493          * This prevents desyncs when one server has different type/class tags to another.
 494          * That having been said, this does open things up to the possibility of source changes
 495          * allowing remote kills, etc - but if they have access to the src, they most likely have
 496          * access to the conf - so it's an end to a means either way.
 497          */
 498         if (!IS_LOCAL(this))
 499                 return true;
 500
 501         // are they even an oper at all?
 502         if (!IS_OPER(this))
 503         {
 504                 return false;
 505         }
 506
 507         if (!AllowedOperCommands)
 508                 return false;
 509
 510         if (AllowedOperCommands->find(command) != AllowedOperCommands->end())
 511                 return true;
 512         else if (AllowedOperCommands->find("*") != AllowedOperCommands->end())
 513                 return true;
 514
 515         return false;
 516 }
 517
 518
 519 bool User::HasPrivPermission(const std::string &privstr, bool noisy)
 520 {
 521         ServerInstance->Logs->Log("PRIVS", DEBUG, "Checking if I have " + privstr);
 522         if (!IS_LOCAL(this))
 523         {
 524                 ServerInstance->Logs->Log("PRIVS", DEBUG, "Remote (yes)");
 525                 return true;
 526         }
 527
 528         if (!IS_OPER(this))
 529         {
 530                 if (noisy)
 531                         this->WriteServ("NOTICE %s :You are not an oper", this->nick.c_str());
 532                 ServerInstance->Logs->Log("PRIVS", DEBUG, "Not oper (no)");
 533                 return false;
 534         }
 535
 536         if (!AllowedPrivs)
 537         {
 538                 if (noisy)
 539                         this->WriteServ("NOTICE %s :Privset empty(!?)", this->nick.c_str());
 540                 ServerInstance->Logs->Log("PRIVS", DEBUG, "No privs(?) (no)");
 541                 return false;
 542         }
 543
 544         if (AllowedPrivs->find(privstr) != AllowedPrivs->end())
 545         {
 546                 return true;
 547         }
 548         else if (AllowedPrivs->find("*") != AllowedPrivs->end())
 549         {
 550                 return true;
 551         }
 552
 553         if (noisy)
 554                 this->WriteServ("NOTICE %s :Oper type %s does not have access to priv %s", this->nick.c_str(), this->oper.c_str(), privstr.c_str());
 555         return false;
 556 }
 557
 558 bool User::AddBuffer(const std::string &a)
 559 {
 560         std::string::size_type start = 0;
 561         std::string::size_type i = a.find('\r');
 562
 563         /*
 564          * The old implementation here took a copy, and rfind() on \r, removing as it found them, before
 565          * copying a second time onto the recvq. That's ok, but involves three copies minimum (recv() to buffer,
 566          * buffer to here, here to recvq) - The new method now copies twice (recv() to buffer, buffer to recvq).
 567          *
 568          * We use find() instead of rfind() for clarity, however unlike the old code, our scanning of the string is
 569          * contiguous: as we specify a startpoint, we never see characters we have scanned previously, making this
 570          * marginally faster in cases with a number of \r hidden early on in the buffer.
 571          *
 572          * How it works:
 573          * Start at first pos of string, find first \r, append everything in the chunk (excluding \r) to recvq. Set
 574          * i ahead of the \r, search for next \r, add next chunk to buffer... repeat.
 575          *              -- w00t (7 may, 2008)
 576          */
 577         if (i == std::string::npos)
 578         {
 579                 // no \r that we need to dance around, just add to buffer
 580                 recvq.append(a);
 581         }
 582         else
 583         {
 584                 // While we can find the end of a chunk to add
 585                 while (i != std::string::npos)
 586                 {
 587                         // Append the chunk that we have
 588                         recvq.append(a, start, (i - start));
 589
 590                         // Start looking for the next one
 591                         start = i + 1;
 592                         i = a.find('\r', start);
 593                 }
 594
 595                 if (start != a.length())
 596                 {
 597                         /*
 598                          * This is here to catch a corner case when we get something like:
 599                          * NICK w0
 600                          * 0t\r\nU
 601                          * SER ...
 602                          * in successive calls to us.
 603                          *
 604                          * Without this conditional, the 'U' on the second case will be dropped,
 605                          * which is most *certainly* not the behaviour we want!
 606                          *              -- w00t
 607                          */
 608                         recvq.append(a, start, (a.length() - start));
 609                 }
 610         }
 611
 612         if (this->MyClass && !this->HasPrivPermission("users/flood/increased-buffers") && recvq.length() > this->MyClass->GetRecvqMax())
 613         {
 614                 ServerInstance->Users->QuitUser(this, "RecvQ exceeded");
 615                 ServerInstance->SNO->WriteToSnoMask('a', "User %s RecvQ of %lu exceeds connect class maximum of %lu",this->nick.c_str(),(unsigned long int)recvq.length(),this->MyClass->GetRecvqMax());
 616                 return false;
 617         }
 618
 619         return true;
 620 }
 621
 622 bool User::BufferIsReady()
 623 {
 624         return (recvq.find('\n') != std::string::npos);
 625 }
 626
 627 void User::ClearBuffer()
 628 {
 629         recvq.clear();
 630 }
 631
 632 std::string User::GetBuffer()
 633 {
 634         try
 635         {
 636                 if (recvq.empty())
 637                         return "";
 638
 639                 /* Strip any leading \r or \n off the string.
 640                  * Usually there are only one or two of these,
 641                  * so its is computationally cheap to do.
 642                  */
 643                 std::string::iterator t = recvq.begin();
 644                 while (t != recvq.end() && (*t == '\r' || *t == '\n'))
 645                 {
 646                         recvq.erase(t);
 647                         t = recvq.begin();
 648                 }
 649
 650                 for (std::string::iterator x = recvq.begin(); x != recvq.end(); x++)
 651                 {
 652                         /* Find the first complete line, return it as the
 653                          * result, and leave the recvq as whats left
 654                          */
 655                         if (*x == '\n')
 656                         {
 657                                 std::string ret = std::string(recvq.begin(), x);
 658                                 recvq.erase(recvq.begin(), x + 1);
 659                                 return ret;
 660                         }
 661                 }
 662                 return "";
 663         }
 664
 665         catch (...)
 666         {
 667                 ServerInstance->Logs->Log("USERS", DEBUG,"Exception in User::GetBuffer()");
 668                 return "";
 669         }
 670 }
 671
 672 void User::AddWriteBuf(const std::string &data)
 673 {
 674         if (!this->quitting && this->MyClass && !this->HasPrivPermission("users/flood/increased-buffers") && sendq.length() + data.length() > this->MyClass->GetSendqMax())
 675         {
 676                 /*
 677                  * Fix by brain - Set the error text BEFORE calling, because
 678                  * if we dont it'll recursively  call here over and over again trying
 679                  * to repeatedly add the text to the sendq!
 680                  */
 681                 ServerInstance->Users->QuitUser(this, "SendQ exceeded");
 682                 ServerInstance->SNO->WriteToSnoMask('a', "User %s SendQ of %lu exceeds connect class maximum of %lu",this->nick.c_str(),(unsigned long int)sendq.length() + data.length(),this->MyClass->GetSendqMax());
 683                 return;
 684         }
 685
 686         // We still want to append data to the sendq of a quitting user,
 687         // e.g. their ERROR message that says 'closing link'
 688
 689         if (data.length() > MAXBUF - 2) /* MAXBUF has a value of 514, to account for line terminators */
 690                 sendq.append(data.substr(0,MAXBUF - 4)).append("\r\n"); /* MAXBUF-4 = 510 */
 691         else
 692                 sendq.append(data);
 693 }
 694
 695 // send AS MUCH OF THE USERS SENDQ as we are able to (might not be all of it)
 696 void User::FlushWriteBuf()
 697 {
 698         if (this->fd == FD_MAGIC_NUMBER)
 699         {
 700                 sendq.clear();
 701                 return;
 702         }
 703
 704         if ((sendq.length()) && (this->fd != FD_MAGIC_NUMBER))
 705         {
 706                 int old_sendq_length = sendq.length();
 707                 int n_sent = ServerInstance->SE->Send(this, this->sendq.data(), this->sendq.length(), 0);
 708
 709                 if (n_sent == -1)
 710                 {
 711                         if (errno == EAGAIN)
 712                         {
 713                                 /* The socket buffer is full. This isnt fatal,
 714                                  * try again later.
 715                                  */
 716                                 ServerInstance->SE->WantWrite(this);
 717                         }
 718                         else
 719                         {
 720                                 /* Fatal error, set write error and bail */
 721                                 ServerInstance->Users->QuitUser(this, errno ? strerror(errno) : "Write error");
 722                                 return;
 723                         }
 724                 }
 725                 else
 726                 {
 727                         /* advance the queue */
 728                         if (n_sent)
 729                                 this->sendq = this->sendq.substr(n_sent);
 730                         /* update the user's stats counters */
 731                         this->bytes_out += n_sent;
 732                         this->cmds_out++;
 733                         if (n_sent != old_sendq_length)
 734                                 this->ServerInstance->SE->WantWrite(this);
 735                 }
 736         }
 737
 738         /* note: NOT else if! */
 739         if (this->sendq.empty())
 740         {
 741                 FOREACH_MOD(I_OnBufferFlushed,OnBufferFlushed(this));
 742         }
 743 }
 744
 745 void User::Oper(const std::string &opertype, const std::string &opername)
 746 {
 747         if (this->IsModeSet('o'))
 748                 this->UnOper();
 749
 750         this->modes[UM_OPERATOR] = 1;
 751         this->WriteServ("MODE %s :+o", this->nick.c_str());
 752         FOREACH_MOD(I_OnOper, OnOper(this, opertype));
 753
 754         ServerInstance->SNO->WriteToSnoMask('o',"%s (%s@%s) is now an IRC operator of type %s (using oper '%s')", this->nick.c_str(), this->ident.c_str(), this->host.c_str(), irc::Spacify(opertype.c_str()), opername.c_str());
 755         this->WriteNumeric(381, "%s :You are now %s %s", this->nick.c_str(), strchr("aeiouAEIOU", *opertype.c_str()) ? "an" : "a", irc::Spacify(opertype.c_str()));
 756
 757         ServerInstance->Logs->Log("OPER", DEFAULT, "%s!%s@%s opered as type: %s", this->nick.c_str(), this->ident.c_str(), this->host.c_str(), opertype.c_str());
 758         this->oper.assign(opertype, 0, 512);
 759         ServerInstance->Users->all_opers.push_back(this);
 760
 761         /*
 762          * This might look like it's in the wrong place.
 763          * It is *not*!
 764          *
 765          * For multi-network servers, we may not have the opertypes of the remote server, but we still want to mark the user as an oper of that type.
 766          * -- w00t
 767          */
 768         opertype_t::iterator iter_opertype = ServerInstance->Config->opertypes.find(this->oper.c_str());
 769         if (iter_opertype != ServerInstance->Config->opertypes.end())
 770         {
 771                 if (AllowedOperCommands)
 772                         AllowedOperCommands->clear();
 773                 else
 774                         AllowedOperCommands = new std::set<std::string>;
 775
 776                 if (AllowedPrivs)
 777                         AllowedPrivs->clear();
 778                 else
 779                         AllowedPrivs = new std::set<std::string>;
 780
 781                 AllowedUserModes.reset();
 782                 AllowedChanModes.reset();
 783                 this->AllowedUserModes['o' - 'A'] = true; // Call me paranoid if you want.
 784
 785                 std::string myclass, mycmd, mypriv;
 786                 irc::spacesepstream Classes(iter_opertype->second.c_str());
 787                 while (Classes.GetToken(myclass))
 788                 {
 789                         operclass_t::iterator iter_operclass = ServerInstance->Config->operclass.find(myclass.c_str());
 790                         if (iter_operclass != ServerInstance->Config->operclass.end())
 791                         {
 792                                 /* Process commands */
 793                                 irc::spacesepstream CommandList(iter_operclass->second.commandlist);
 794                                 while (CommandList.GetToken(mycmd))
 795                                 {
 796                                         this->AllowedOperCommands->insert(mycmd);
 797                                 }
 798
 799                                 irc::spacesepstream PrivList(iter_operclass->second.privs);
 800                                 while (PrivList.GetToken(mypriv))
 801                                 {
 802                                         this->AllowedPrivs->insert(mypriv);
 803                                 }
 804
 805                                 for (unsigned char* c = (unsigned char*)iter_operclass->second.umodelist; *c; ++c)
 806                                 {
 807                                         if (*c == '*')
 808                                         {
 809                                                 this->AllowedUserModes.set();
 810                                         }
 811                                         else
 812                                         {
 813                                                 this->AllowedUserModes[*c - 'A'] = true;
 814                                         }
 815                                 }
 816
 817                                 for (unsigned char* c = (unsigned char*)iter_operclass->second.cmodelist; *c; ++c)
 818                                 {
 819                                         if (*c == '*')
 820                                         {
 821                                                 this->AllowedChanModes.set();
 822                                         }
 823                                         else
 824                                         {
 825                                                 this->AllowedChanModes[*c - 'A'] = true;
 826                                         }
 827                                 }
 828                         }
 829                 }
 830         }
 831
 832         FOREACH_MOD(I_OnPostOper,OnPostOper(this, opertype, opername));
 833 }
 834
 835 void User::UnOper()
 836 {
 837         if (IS_OPER(this))
 838         {
 839                 /*
 840                  * unset their oper type (what IS_OPER checks).
 841                  * note, order is important - this must come before modes as -o attempts
 842                  * to call UnOper. -- w00t
 843                  */
 844                 this->oper.clear();
 845
 846
 847                 /* Remove all oper only modes from the user when the deoper - Bug #466*/
 848                 std::string moderemove("-");
 849
 850                 for (unsigned char letter = 'A'; letter <= 'z'; letter++)
 851                 {
 852                         ModeHandler* mh = ServerInstance->Modes->FindMode(letter, MODETYPE_USER);
 853                         if (mh && mh->NeedsOper())
 854                                 moderemove += letter;
 855                 }
 856
 857
 858                 std::vector<std::string> parameters;
 859                 parameters.push_back(this->nick);
 860                 parameters.push_back(moderemove);
 861
 862                 ServerInstance->Parser->CallHandler("MODE", parameters, this);
 863
 864                 /* remove the user from the oper list. Will remove multiple entries as a safeguard against bug #404 */
 865                 ServerInstance->Users->all_opers.remove(this);
 866
 867                 if (AllowedOperCommands)
 868                 {
 869                         delete AllowedOperCommands;
 870                         AllowedOperCommands = NULL;
 871                 }
 872
 873                 if (AllowedPrivs)
 874                 {
 875                         delete AllowedPrivs;
 876                         AllowedPrivs = NULL;
 877                 }
 878
 879                 AllowedUserModes.reset();
 880                 AllowedChanModes.reset();
 881                 this->modes[UM_OPERATOR] = 0;
 882         }
 883 }
 884
 885 /* adds or updates an entry in the whowas list */
 886 void User::AddToWhoWas()
 887 {
 888         Command* whowas_command = ServerInstance->Parser->GetHandler("WHOWAS");
 889         if (whowas_command)
 890         {
 891                 std::deque<classbase*> params;
 892                 params.push_back(this);
 893                 whowas_command->HandleInternal(WHOWAS_ADD, params);
 894         }
 895 }
 896
 897 /*
 898  * Check class restrictions
 899  */
 900 void User::CheckClass()
 901 {
 902         ConnectClass* a = this->MyClass;
 903
 904         if ((!a) || (a->GetType() == CC_DENY))
 905         {
 906                 ServerInstance->Users->QuitUser(this, "Unauthorised connection");
 907                 return;
 908         }
 909         else if ((a->GetMaxLocal()) && (ServerInstance->Users->LocalCloneCount(this) > a->GetMaxLocal()))
 910         {
 911                 ServerInstance->Users->QuitUser(this, "No more connections allowed from your host via this connect class (local)");
 912                 ServerInstance->SNO->WriteToSnoMask('a', "WARNING: maximum LOCAL connections (%ld) exceeded for IP %s", a->GetMaxLocal(), this->GetIPString());
 913                 return;
 914         }
 915         else if ((a->GetMaxGlobal()) && (ServerInstance->Users->GlobalCloneCount(this) > a->GetMaxGlobal()))
 916         {
 917                 ServerInstance->Users->QuitUser(this, "No more connections allowed from your host via this connect class (global)");
 918                 ServerInstance->SNO->WriteToSnoMask('a', "WARNING: maximum GLOBAL connections (%ld) exceeded for IP %s", a->GetMaxGlobal(), this->GetIPString());
 919                 return;
 920         }
 921
 922         this->nping = ServerInstance->Time() + a->GetPingTime() + ServerInstance->Config->dns_timeout;
 923 }
 924
 925 bool User::CheckLines(bool doZline)
 926 {
 927         const char* check[] = { "G" , "K", (doZline) ? "Z" : NULL, NULL };
 928
 929         if (!this->exempt)
 930         {
 931                 for (int n = 0; check[n]; ++n)
 932                 {
 933                         XLine *r = ServerInstance->XLines->MatchesLine(check[n], this);
 934
 935                         if (r)
 936                         {
 937                                 r->Apply(this);
 938                                 return true;
 939                         }
 940                 }
 941         }
 942
 943         return false;
 944 }
 945
 946 void User::FullConnect()
 947 {
 948         ServerInstance->stats->statsConnects++;
 949         this->idle_lastmsg = ServerInstance->Time();
 950
 951         /*
 952          * You may be thinking "wtf, we checked this in User::AddClient!" - and yes, we did, BUT.
 953          * At the time AddClient is called, we don't have a resolved host, by here we probably do - which
 954          * may put the user into a totally seperate class with different restrictions! so we *must* check again.
 955          * Don't remove this! -- w00t
 956          */
 957         this->SetClass();
 958
 959         /* Check the password, if one is required by the user's connect class.
 960          * This CANNOT be in CheckClass(), because that is called prior to PASS as well!
 961          */
 962         if (this->MyClass && !this->MyClass->GetPass().empty() && !this->haspassed)
 963         {
 964                 ServerInstance->Users->QuitUser(this, "Invalid password");
 965                 return;
 966         }
 967
 968         if (this->CheckLines())
 969                 return;
 970
 971         this->WriteServ("NOTICE Auth :Welcome to \002%s\002!",ServerInstance->Config->Network);
 972         this->WriteNumeric(RPL_WELCOME, "%s :Welcome to the %s IRC Network %s!%s@%s",this->nick.c_str(), ServerInstance->Config->Network, this->nick.c_str(), this->ident.c_str(), this->host.c_str());
 973         this->WriteNumeric(RPL_YOURHOSTIS, "%s :Your host is %s, running version InspIRCd-1.2",this->nick.c_str(),ServerInstance->Config->ServerName);
 974         this->WriteNumeric(RPL_SERVERCREATED, "%s :This server was created %s %s", this->nick.c_str(), __TIME__, __DATE__);
 975         this->WriteNumeric(RPL_SERVERVERSION, "%s %s InspIRCd-1.2 %s %s %s", this->nick.c_str(), ServerInstance->Config->ServerName, ServerInstance->Modes->UserModeList().c_str(), ServerInstance->Modes->ChannelModeList().c_str(), ServerInstance->Modes->ParaModeList().c_str());
 976
 977         ServerInstance->Config->Send005(this);
 978         this->WriteNumeric(RPL_YOURUUID, "%s %s :your unique ID", this->nick.c_str(), this->uuid.c_str());
 979
 980
 981         this->ShowMOTD();
 982
 983         /* Now registered */
 984         if (ServerInstance->Users->unregistered_count)
 985                 ServerInstance->Users->unregistered_count--;
 986
 987         /* Trigger LUSERS output, give modules a chance too */
 988         int MOD_RESULT = 0;
 989         std::string command("LUSERS");
 990         std::vector<std::string> parameters;
 991         FOREACH_RESULT(I_OnPreCommand, OnPreCommand(command, parameters, this, true, "LUSERS"));
 992         if (!MOD_RESULT)
 993                 ServerInstance->CallCommandHandler(command, parameters, this);
 994
 995         /*
 996          * We don't set REG_ALL until triggering OnUserConnect, so some module events don't spew out stuff
 997          * for a user that doesn't exist yet.
 998          */
 999         FOREACH_MOD(I_OnUserConnect,OnUserConnect(this));
1000
1001         this->registered = REG_ALL;
1002
1003         ServerInstance->PI->Introduce(this);
1004
1005         FOREACH_MOD(I_OnPostConnect,OnPostConnect(this));
1006
1007         ServerInstance->SNO->WriteToSnoMask('c',"Client connecting on port %d: %s!%s@%s [%s] [%s]", this->GetPort(), this->nick.c_str(), this->ident.c_str(), this->host.c_str(), this->GetIPString(), this->fullname.c_str());
1008         ServerInstance->Logs->Log("BANCACHE", DEBUG, "BanCache: Adding NEGATIVE hit for %s", this->GetIPString());
1009         ServerInstance->BanCache->AddHit(this->GetIPString(), "", "");
1010 }
1011
1012 /** User::UpdateNick()
1013  * re-allocates a nick in the user_hash after they change nicknames,
1014  * returns a pointer to the new user as it may have moved
1015  */
1016 User* User::UpdateNickHash(const char* New)
1017 {
1018         //user_hash::iterator newnick;
1019         user_hash::iterator oldnick = ServerInstance->Users->clientlist->find(this->nick);
1020
1021         if (!irc::string(this->nick.c_str()).compare(New))
1022                 return oldnick->second;
1023
1024         if (oldnick == ServerInstance->Users->clientlist->end())
1025                 return NULL; /* doesnt exist */
1026
1027         User* olduser = oldnick->second;
1028         ServerInstance->Users->clientlist->erase(oldnick);
1029         (*(ServerInstance->Users->clientlist))[New] = olduser;
1030         return olduser;
1031 }
1032
1033 void User::InvalidateCache()
1034 {
1035         /* Invalidate cache */
1036         cached_fullhost.clear();
1037         cached_hostip.clear();
1038         cached_makehost.clear();
1039         cached_fullrealhost.clear();
1040 }
1041
1042 bool User::ForceNickChange(const char* newnick)
1043 {
1044         int MOD_RESULT = 0;
1045
1046         this->InvalidateCache();
1047
1048         this->Extend("NICKForced", "Enabled");
1049
1050         FOREACH_RESULT(I_OnUserPreNick,OnUserPreNick(this, newnick));
1051
1052         this->Shrink("NICKForced");
1053
1054         if (MOD_RESULT)
1055         {
1056                 ServerInstance->stats->statsCollisions++;
1057                 return false;
1058         }
1059
1060         std::deque<classbase*> dummy;
1061         Command* nickhandler = ServerInstance->Parser->GetHandler("NICK");
1062         if (nickhandler) // wtfbbq, when would this not be here
1063         {
1064                 std::vector<std::string> parameters;
1065                 nickhandler->HandleInternal(1, dummy);
1066                 parameters.push_back(newnick);
1067                 this->Extend("NICKForced", "Enabled");
1068                 bool result = (ServerInstance->Parser->CallHandler("NICK", parameters, this) == CMD_SUCCESS);
1069                 this->Shrink("NICKForced");
1070                 nickhandler->HandleInternal(0, dummy);
1071                 return result;
1072         }
1073
1074         // Unreachable, we hope
1075         return false;
1076 }
1077
1078 void User::SetSockAddr(int protocol_family, const char* sip, int port)
1079 {
1080         this->cachedip = "";
1081
1082         switch (protocol_family)
1083         {
1084 #ifdef SUPPORT_IP6LINKS
1085                 case AF_INET6:
1086                 {
1087                         sockaddr_in6* sin = new sockaddr_in6;
1088                         sin->sin6_family = AF_INET6;
1089                         sin->sin6_port = port;
1090                         inet_pton(AF_INET6, sip, &sin->sin6_addr);
1091                         this->ip = (sockaddr*)sin;
1092                 }
1093                 break;
1094 #endif
1095                 case AF_INET:
1096                 {
1097                         sockaddr_in* sin = new sockaddr_in;
1098                         sin->sin_family = AF_INET;
1099                         sin->sin_port = port;
1100                         inet_pton(AF_INET, sip, &sin->sin_addr);
1101                         this->ip = (sockaddr*)sin;
1102                 }
1103                 break;
1104                 default:
1105                         ServerInstance->Logs->Log("USERS",DEBUG,"Uh oh, I dont know protocol %d to be set on '%s'!", protocol_family, this->nick.c_str());
1106                 break;
1107         }
1108 }
1109
1110 int User::GetPort()
1111 {
1112         if (this->ip == NULL)
1113                 return 0;
1114
1115         switch (this->GetProtocolFamily())
1116         {
1117 #ifdef SUPPORT_IP6LINKS
1118                 case AF_INET6:
1119                 {
1120                         sockaddr_in6* sin = (sockaddr_in6*)this->ip;
1121                         return sin->sin6_port;
1122                 }
1123                 break;
1124 #endif
1125                 case AF_INET:
1126                 {
1127                         sockaddr_in* sin = (sockaddr_in*)this->ip;
1128                         return sin->sin_port;
1129                 }
1130                 break;
1131                 default:
1132                 break;
1133         }
1134         return 0;
1135 }
1136
1137 int User::GetProtocolFamily()
1138 {
1139         if (this->ip == NULL)
1140                 return 0;
1141
1142         sockaddr_in* sin = (sockaddr_in*)this->ip;
1143         return sin->sin_family;
1144 }
1145
1146 const char* User::GetCIDRMask(int range)
1147 {
1148         static char buf[44];
1149
1150         if (this->ip == NULL)
1151                 return "";
1152
1153         if (range < 0)
1154                 throw "Negative range, sorry, no.";
1155
1156         /*
1157          * Original code written by Oliver Lupton (Om).
1158          * Integrated by me. Thanks. :) -- w00t
1159          */
1160         switch (this->GetProtocolFamily())
1161         {
1162 #ifdef SUPPORT_IP6LINKS
1163                 case AF_INET6:
1164                 {
1165                         /* unsigned char s6_addr[16]; */
1166                         struct in6_addr v6;
1167                         sockaddr_in6* sin;
1168                         int i, bytestozero, extrabits;
1169                         char buffer[40];
1170
1171                         if(range > 128)
1172                                 throw "CIDR mask width greater than address width (IPv6, 128 bit)";
1173
1174                         /* Access the user's IP structure directly */
1175                         sin = (sockaddr_in6*)this->ip;
1176
1177                         /* To create the CIDR mask we want to set all the bits after 'range' bits of the address
1178                          * to zero. This means the last (128 - range) bits of the address must be set to zero.
1179                          * Hence this number divided by 8 is the number of whole bytes from the end of the address
1180                          * which must be set to zero.
1181                          */
1182                         bytestozero = (128 - range) / 8;
1183
1184                         /* Some of the least significant bits of the next most significant byte may also have to
1185                          * be zeroed. The number of bits is the remainder of the above division.
1186                          */
1187                         extrabits = (128 - range) % 8;
1188
1189                         /* Populate our working struct with the parts of the user's IP which are required in the
1190                          * final CIDR mask. Set all the subsequent bytes to zero.
1191                          * (16 - bytestozero) is the number of bytes which must be populated with actual IP data.
1192                          */
1193                         for(i = 0; i < (16 - bytestozero); i++)
1194                         {
1195                                 v6.s6_addr[i] = sin->sin6_addr.s6_addr[i];
1196                         }
1197
1198                         /* And zero all the remaining bytes in the IP. */
1199                         for(; i < 16; i++)
1200                         {
1201                                 v6.s6_addr[i] = 0;
1202                         }
1203
1204                         /* And finally, zero the extra bits required. */
1205                         v6.s6_addr[15 - bytestozero] = (v6.s6_addr[15 - bytestozero] >> extrabits) << extrabits;
1206
1207                         snprintf(buf, 44, "%s/%d", inet_ntop(AF_INET6, &v6, buffer, 40), range);
1208                         return buf;
1209                 }
1210                 break;
1211 #endif
1212                 case AF_INET:
1213                 {
1214                         struct in_addr v4;
1215                         sockaddr_in* sin;
1216                         char buffer[16];
1217
1218                         if (range > 32)
1219                                 throw "CIDR mask width greater than address width (IPv4, 32 bit)";
1220
1221                         /* Users already have a sockaddr* pointer (User::ip) which contains either a v4 or v6 structure */
1222                         sin = (sockaddr_in*)this->ip;
1223                         v4.s_addr = sin->sin_addr.s_addr;
1224
1225                         /* To create the CIDR mask we want to set all the bits after 'range' bits of the address
1226                          * to zero. This means the last (32 - range) bits of the address must be set to zero.
1227                          * This is done by shifting the value right and then back left by (32 - range) bits.
1228                          */
1229                         if(range > 0)
1230                         {
1231                                 v4.s_addr = ntohl(v4.s_addr);
1232                                 v4.s_addr = (v4.s_addr >> (32 - range)) << (32 - range);
1233                                 v4.s_addr = htonl(v4.s_addr);
1234                         }
1235                         else
1236                         {
1237                                 /* a range of zero would cause a 32 bit value to be shifted by 32 bits.
1238                                  * this has undefined behaviour, but for CIDR purposes the resulting mask
1239                                  * from a.b.c.d/0 is 0.0.0.0/0
1240                                  */
1241                                 v4.s_addr = 0;
1242                         }
1243
1244                         snprintf(buf, 44, "%s/%d", inet_ntop(AF_INET, &v4, buffer, 16), range);
1245                         return buf;
1246                 }
1247                 break;
1248         }
1249
1250         return ""; // unused, but oh well
1251 }
1252
1253 const char* User::GetIPString()
1254 {
1255         static char buf[40];
1256
1257         if (this->ip == NULL)
1258                 return "";
1259
1260         if (!this->cachedip.empty())
1261                 return this->cachedip.c_str();
1262
1263         switch (this->GetProtocolFamily())
1264         {
1265 #ifdef SUPPORT_IP6LINKS
1266                 case AF_INET6:
1267                 {
1268                         static char temp[1024];
1269
1270                         sockaddr_in6* sin = (sockaddr_in6*)this->ip;
1271                         inet_ntop(sin->sin6_family, &sin->sin6_addr, buf, sizeof(buf));
1272                         /* IP addresses starting with a : on irc are a Bad Thing (tm) */
1273                         if (*buf == ':')
1274                         {
1275                                 strlcpy(&temp[1], buf, sizeof(temp) - 1);
1276                                 *temp = '0';
1277                                 this->cachedip = temp;
1278                                 return temp;
1279                         }
1280
1281                         this->cachedip = buf;
1282                         return buf;
1283                 }
1284                 break;
1285 #endif
1286                 case AF_INET:
1287                 {
1288                         sockaddr_in* sin = (sockaddr_in*)this->ip;
1289                         inet_ntop(sin->sin_family, &sin->sin_addr, buf, sizeof(buf));
1290                         this->cachedip = buf;
1291                         return buf;
1292                 }
1293                 break;
1294                 default:
1295                 break;
1296         }
1297
1298         // Unreachable, probably
1299         return "";
1300 }
1301
1302 /** NOTE: We cannot pass a const reference to this method.
1303  * The string is changed by the workings of the method,
1304  * so that if we pass const ref, we end up copying it to
1305  * something we can change anyway. Makes sense to just let
1306  * the compiler do that copy for us.
1307  */
1308 void User::Write(std::string text)
1309 {
1310         if (!ServerInstance->SE->BoundsCheckFd(this))
1311                 return;
1312
1313         try
1314         {
1315                 ServerInstance->Logs->Log("USEROUTPUT", DEBUG,"C[%d] O %s", this->GetFd(), text.c_str());
1316                 text.append("\r\n");
1317         }
1318         catch (...)
1319         {
1320                 ServerInstance->Logs->Log("USEROUTPUT", DEBUG,"Exception in User::Write() std::string::append");
1321                 return;
1322         }
1323
1324         if (this->GetIOHook())
1325         {
1326                 /* XXX: The lack of buffering here is NOT a bug, modules implementing this interface have to
1327                  * implement their own buffering mechanisms
1328                  */
1329                 try
1330                 {
1331                         this->GetIOHook()->OnRawSocketWrite(this->fd, text.data(), text.length());
1332                 }
1333                 catch (CoreException& modexcept)
1334                 {
1335                         ServerInstance->Logs->Log("USEROUTPUT", DEBUG, "%s threw an exception: %s", modexcept.GetSource(), modexcept.GetReason());
1336                 }
1337         }
1338         else
1339         {
1340                 this->AddWriteBuf(text);
1341         }
1342         ServerInstance->stats->statsSent += text.length();
1343         this->ServerInstance->SE->WantWrite(this);
1344 }
1345
1346 /** Write()
1347  */
1348 void User::Write(const char *text, ...)
1349 {
1350         va_list argsPtr;
1351         char textbuffer[MAXBUF];
1352
1353         va_start(argsPtr, text);
1354         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
1355         va_end(argsPtr);
1356
1357         this->Write(std::string(textbuffer));
1358 }
1359
1360 void User::WriteServ(const std::string& text)
1361 {
1362         char textbuffer[MAXBUF];
1363
1364         snprintf(textbuffer,MAXBUF,":%s %s",ServerInstance->Config->ServerName,text.c_str());
1365         this->Write(std::string(textbuffer));
1366 }
1367
1368 /** WriteServ()
1369  *  Same as Write(), except `text' is prefixed with `:server.name '.
1370  */
1371 void User::WriteServ(const char* text, ...)
1372 {
1373         va_list argsPtr;
1374         char textbuffer[MAXBUF];
1375
1376         va_start(argsPtr, text);
1377         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
1378         va_end(argsPtr);
1379
1380         this->WriteServ(std::string(textbuffer));
1381 }
1382
1383
1384 void User::WriteNumeric(unsigned int numeric, const char* text, ...)
1385 {
1386         va_list argsPtr;
1387         char textbuffer[MAXBUF];
1388
1389         va_start(argsPtr, text);
1390         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
1391         va_end(argsPtr);
1392
1393         this->WriteNumeric(numeric, std::string(textbuffer));
1394 }
1395
1396 void User::WriteNumeric(unsigned int numeric, const std::string &text)
1397 {
1398         char textbuffer[MAXBUF];
1399         int MOD_RESULT = 0;
1400
1401         FOREACH_RESULT(I_OnNumeric, OnNumeric(this, numeric, text));
1402
1403         if (MOD_RESULT)
1404                 return;
1405
1406         snprintf(textbuffer,MAXBUF,":%s %03u %s",ServerInstance->Config->ServerName, numeric, text.c_str());
1407         this->Write(std::string(textbuffer));
1408 }
1409
1410 void User::WriteFrom(User *user, const std::string &text)
1411 {
1412         char tb[MAXBUF];
1413
1414         snprintf(tb,MAXBUF,":%s %s",user->GetFullHost().c_str(),text.c_str());
1415
1416         this->Write(std::string(tb));
1417 }
1418
1419
1420 /* write text from an originating user to originating user */
1421
1422 void User::WriteFrom(User *user, const char* text, ...)
1423 {
1424         va_list argsPtr;
1425         char textbuffer[MAXBUF];
1426
1427         va_start(argsPtr, text);
1428         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
1429         va_end(argsPtr);
1430
1431         this->WriteFrom(user, std::string(textbuffer));
1432 }
1433
1434
1435 /* write text to an destination user from a source user (e.g. user privmsg) */
1436
1437 void User::WriteTo(User *dest, const char *data, ...)
1438 {
1439         char textbuffer[MAXBUF];
1440         va_list argsPtr;
1441
1442         va_start(argsPtr, data);
1443         vsnprintf(textbuffer, MAXBUF, data, argsPtr);
1444         va_end(argsPtr);
1445
1446         this->WriteTo(dest, std::string(textbuffer));
1447 }
1448
1449 void User::WriteTo(User *dest, const std::string &data)
1450 {
1451         dest->WriteFrom(this, data);
1452 }
1453
1454
1455 void User::WriteCommon(const char* text, ...)
1456 {
1457         char textbuffer[MAXBUF];
1458         va_list argsPtr;
1459
1460         if (this->registered != REG_ALL)
1461                 return;
1462
1463         va_start(argsPtr, text);
1464         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
1465         va_end(argsPtr);
1466
1467         this->WriteCommon(std::string(textbuffer));
1468 }
1469
1470 void User::WriteCommon(const std::string &text)
1471 {
1472         bool sent_to_at_least_one = false;
1473         char tb[MAXBUF];
1474
1475         if (this->registered != REG_ALL)
1476                 return;
1477
1478         uniq_id++;
1479
1480         if (!already_sent)
1481                 InitializeAlreadySent(ServerInstance->SE);
1482
1483         /* We dont want to be doing this n times, just once */
1484         snprintf(tb,MAXBUF,":%s %s",this->GetFullHost().c_str(),text.c_str());
1485         std::string out = tb;
1486
1487         for (UCListIter v = this->chans.begin(); v != this->chans.end(); v++)
1488         {
1489                 CUList* ulist = v->first->GetUsers();
1490                 for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
1491                 {
1492                         if ((IS_LOCAL(i->first)) && (already_sent[i->first->fd] != uniq_id))
1493                         {
1494                                 already_sent[i->first->fd] = uniq_id;
1495                                 i->first->Write(out);
1496                                 sent_to_at_least_one = true;
1497                         }
1498                 }
1499         }
1500
1501         /*
1502          * if the user was not in any channels, no users will receive the text. Make sure the user
1503          * receives their OWN message for WriteCommon
1504          */
1505         if (!sent_to_at_least_one)
1506         {
1507                 this->Write(std::string(tb));
1508         }
1509 }
1510
1511
1512 /* write a formatted string to all users who share at least one common
1513  * channel, NOT including the source user e.g. for use in QUIT
1514  */
1515
1516 void User::WriteCommonExcept(const char* text, ...)
1517 {
1518         char textbuffer[MAXBUF];
1519         va_list argsPtr;
1520
1521         va_start(argsPtr, text);
1522         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
1523         va_end(argsPtr);
1524
1525         this->WriteCommonExcept(std::string(textbuffer));
1526 }
1527
1528 void User::WriteCommonQuit(const std::string &normal_text, const std::string &oper_text)
1529 {
1530         char tb1[MAXBUF];
1531         char tb2[MAXBUF];
1532
1533         if (this->registered != REG_ALL)
1534                 return;
1535
1536         uniq_id++;
1537
1538         if (!already_sent)
1539                 InitializeAlreadySent(ServerInstance->SE);
1540
1541         snprintf(tb1,MAXBUF,":%s QUIT :%s",this->GetFullHost().c_str(),normal_text.c_str());
1542         snprintf(tb2,MAXBUF,":%s QUIT :%s",this->GetFullHost().c_str(),oper_text.c_str());
1543         std::string out1 = tb1;
1544         std::string out2 = tb2;
1545
1546         for (UCListIter v = this->chans.begin(); v != this->chans.end(); v++)
1547         {
1548                 CUList *ulist = v->first->GetUsers();
1549                 for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
1550                 {
1551                         if (this != i->first)
1552                         {
1553                                 if ((IS_LOCAL(i->first)) && (already_sent[i->first->fd] != uniq_id))
1554                                 {
1555                                         already_sent[i->first->fd] = uniq_id;
1556                                         i->first->Write(IS_OPER(i->first) ? out2 : out1);
1557                                 }
1558                         }
1559                 }
1560         }
1561 }
1562
1563 void User::WriteCommonExcept(const std::string &text)
1564 {
1565         char tb1[MAXBUF];
1566         std::string out1;
1567
1568         if (this->registered != REG_ALL)
1569                 return;
1570
1571         uniq_id++;
1572
1573         if (!already_sent)
1574                 InitializeAlreadySent(ServerInstance->SE);
1575
1576         snprintf(tb1,MAXBUF,":%s %s",this->GetFullHost().c_str(),text.c_str());
1577         out1 = tb1;
1578
1579         for (UCListIter v = this->chans.begin(); v != this->chans.end(); v++)
1580         {
1581                 CUList *ulist = v->first->GetUsers();
1582                 for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
1583                 {
1584                         if (this != i->first)
1585                         {
1586                                 if ((IS_LOCAL(i->first)) && (already_sent[i->first->fd] != uniq_id))
1587                                 {
1588                                         already_sent[i->first->fd] = uniq_id;
1589                                         i->first->Write(out1);
1590                                 }
1591                         }
1592                 }
1593         }
1594
1595 }
1596
1597 void User::WriteWallOps(const std::string &text)
1598 {
1599         std::string wallop("WALLOPS :");
1600         wallop.append(text);
1601
1602         for (std::vector<User*>::const_iterator i = ServerInstance->Users->local_users.begin(); i != ServerInstance->Users->local_users.end(); i++)
1603         {
1604                 User* t = *i;
1605                 if (t->IsModeSet('w'))
1606                         this->WriteTo(t,wallop);
1607         }
1608 }
1609
1610 void User::WriteWallOps(const char* text, ...)
1611 {
1612         if (!IS_LOCAL(this))
1613                 return;
1614
1615         char textbuffer[MAXBUF];
1616         va_list argsPtr;
1617
1618         va_start(argsPtr, text);
1619         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
1620         va_end(argsPtr);
1621
1622         this->WriteWallOps(std::string(textbuffer));
1623 }
1624
1625 /* return 0 or 1 depending if users u and u2 share one or more common channels
1626  * (used by QUIT, NICK etc which arent channel specific notices)
1627  *
1628  * The old algorithm in 1.0 for this was relatively inefficient, iterating over
1629  * the first users channels then the second users channels within the outer loop,
1630  * therefore it was a maximum of x*y iterations (upon returning 0 and checking
1631  * all possible iterations). However this new function instead checks against the
1632  * channel's userlist in the inner loop which is a std::map<User*,User*>
1633  * and saves us time as we already know what pointer value we are after.
1634  * Don't quote me on the maths as i am not a mathematician or computer scientist,
1635  * but i believe this algorithm is now x+(log y) maximum iterations instead.
1636  */
1637 bool User::SharesChannelWith(User *other)
1638 {
1639         if ((!other) || (this->registered != REG_ALL) || (other->registered != REG_ALL))
1640                 return false;
1641
1642         /* Outer loop */
1643         for (UCListIter i = this->chans.begin(); i != this->chans.end(); i++)
1644         {
1645                 /* Eliminate the inner loop (which used to be ~equal in size to the outer loop)
1646                  * by replacing it with a map::find which *should* be more efficient
1647                  */
1648                 if (i->first->HasUser(other))
1649                         return true;
1650         }
1651         return false;
1652 }
1653
1654 bool User::ChangeName(const char* gecos)
1655 {
1656         if (!this->fullname.compare(gecos))
1657                 return true;
1658
1659         if (IS_LOCAL(this))
1660         {
1661                 int MOD_RESULT = 0;
1662                 FOREACH_RESULT(I_OnChangeLocalUserGECOS,OnChangeLocalUserGECOS(this,gecos));
1663                 if (MOD_RESULT)
1664                         return false;
1665                 FOREACH_MOD(I_OnChangeName,OnChangeName(this,gecos));
1666         }
1667         this->fullname.assign(gecos, 0, ServerInstance->Config->Limits.MaxGecos);
1668
1669         return true;
1670 }
1671
1672 bool User::ChangeDisplayedHost(const char* shost)
1673 {
1674         if (dhost == shost)
1675                 return true;
1676
1677         if (IS_LOCAL(this))
1678         {
1679                 int MOD_RESULT = 0;
1680                 FOREACH_RESULT(I_OnChangeLocalUserHost,OnChangeLocalUserHost(this,shost));
1681                 if (MOD_RESULT)
1682                         return false;
1683         }
1684
1685         FOREACH_MOD(I_OnChangeHost, OnChangeHost(this,shost));
1686
1687         int MOD_RESULT = 0;
1688         FOREACH_RESULT(I_OnHostCycle, OnHostCycle(this));
1689
1690         if (this->ServerInstance->Config->CycleHosts && !MOD_RESULT)
1691                 this->WriteCommonExcept("QUIT :Changing hosts");
1692
1693         /* Fix by Om: User::dhost is 65 long, this was truncating some long hosts */
1694         this->dhost.assign(shost, 0, 64);
1695
1696         this->InvalidateCache();
1697
1698         if (this->ServerInstance->Config->CycleHosts && !MOD_RESULT)
1699         {
1700                 for (UCListIter i = this->chans.begin(); i != this->chans.end(); i++)
1701                 {
1702                         i->first->WriteAllExceptSender(this, false, 0, "JOIN %s", i->first->name.c_str());
1703                         std::string n = this->ServerInstance->Modes->ModeString(this, i->first);
1704                         if (n.length() > 0)
1705                                 i->first->WriteAllExceptSender(this, true, 0, "MODE %s +%s", i->first->name.c_str(), n.c_str());
1706                 }
1707         }
1708
1709         if (IS_LOCAL(this))
1710                 this->WriteNumeric(RPL_YOURDISPLAYEDHOST, "%s %s :is now your displayed host",this->nick.c_str(),this->dhost.c_str());
1711
1712         return true;
1713 }
1714
1715 bool User::ChangeIdent(const char* newident)
1716 {
1717         if (this->ident == newident)
1718                 return true;
1719
1720         int MOD_RESULT = 0;
1721         FOREACH_RESULT(I_OnHostCycle, OnHostCycle(this));
1722
1723         if (this->ServerInstance->Config->CycleHosts && !MOD_RESULT)
1724                 this->WriteCommonExcept("%s","QUIT :Changing ident");
1725
1726         this->ident.assign(newident, 0, ServerInstance->Config->Limits.IdentMax + 1);
1727
1728         this->InvalidateCache();
1729
1730         if (this->ServerInstance->Config->CycleHosts && !MOD_RESULT)
1731         {
1732                 for (UCListIter i = this->chans.begin(); i != this->chans.end(); i++)
1733                 {
1734                         i->first->WriteAllExceptSender(this, false, 0, "JOIN %s", i->first->name.c_str());
1735                         std::string n = this->ServerInstance->Modes->ModeString(this, i->first);
1736                         if (n.length() > 0)
1737                                 i->first->WriteAllExceptSender(this, true, 0, "MODE %s +%s", i->first->name.c_str(), n.c_str());
1738                 }
1739         }
1740
1741         return true;
1742 }
1743
1744 void User::SendAll(const char* command, const char* text, ...)
1745 {
1746         char textbuffer[MAXBUF];
1747         char formatbuffer[MAXBUF];
1748         va_list argsPtr;
1749
1750         va_start(argsPtr, text);
1751         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
1752         va_end(argsPtr);
1753
1754         snprintf(formatbuffer,MAXBUF,":%s %s $* :%s", this->GetFullHost().c_str(), command, textbuffer);
1755         std::string fmt = formatbuffer;
1756
1757         for (std::vector<User*>::const_iterator i = ServerInstance->Users->local_users.begin(); i != ServerInstance->Users->local_users.end(); i++)
1758         {
1759                 (*i)->Write(fmt);
1760         }
1761 }
1762
1763
1764 std::string User::ChannelList(User* source)
1765 {
1766         std::string list;
1767
1768         for (UCListIter i = this->chans.begin(); i != this->chans.end(); i++)
1769         {
1770                 /* If the target is the same as the sender, let them see all their channels.
1771                  * If the channel is NOT private/secret OR the user shares a common channel
1772                  * If the user is an oper, and the <options:operspywhois> option is set.
1773                  */
1774                 if ((source == this) || (IS_OPER(source) && ServerInstance->Config->OperSpyWhois) || (((!i->first->IsModeSet('p')) && (!i->first->IsModeSet('s'))) || (i->first->HasUser(source))))
1775                 {
1776                         list.append(i->first->GetPrefixChar(this)).append(i->first->name).append(" ");
1777                 }
1778         }
1779
1780         return list;
1781 }
1782
1783 void User::SplitChanList(User* dest, const std::string &cl)
1784 {
1785         std::string line;
1786         std::ostringstream prefix;
1787         std::string::size_type start, pos, length;
1788
1789         prefix << this->nick << " " << dest->nick << " :";
1790         line = prefix.str();
1791         int namelen = strlen(ServerInstance->Config->ServerName) + 6;
1792
1793         for (start = 0; (pos = cl.find(' ', start)) != std::string::npos; start = pos+1)
1794         {
1795                 length = (pos == std::string::npos) ? cl.length() : pos;
1796
1797                 if (line.length() + namelen + length - start > 510)
1798                 {
1799                         ServerInstance->SendWhoisLine(this, dest, 319, "%s", line.c_str());
1800                         line = prefix.str();
1801                 }
1802
1803                 if(pos == std::string::npos)
1804                 {
1805                         line.append(cl.substr(start, length - start));
1806                         break;
1807                 }
1808                 else
1809                 {
1810                         line.append(cl.substr(start, length - start + 1));
1811                 }
1812         }
1813
1814         if (line.length())
1815         {
1816                 ServerInstance->SendWhoisLine(this, dest, 319, "%s", line.c_str());
1817         }
1818 }
1819
1820 /*
1821  * Sets a user's connection class.
1822  * If the class name is provided, it will be used. Otherwise, the class will be guessed using host/ip/ident/etc.
1823  * NOTE: If the <ALLOW> or <DENY> tag specifies an ip, and this user resolves,
1824  * then their ip will be taken as 'priority' anyway, so for example,
1825  * <connect allow="127.0.0.1"> will match joe!bloggs@localhost
1826  */
1827 ConnectClass* User::SetClass(const std::string &explicit_name)
1828 {
1829         ConnectClass *found = NULL;
1830
1831         if (!IS_LOCAL(this))
1832                 return NULL;
1833
1834         ServerInstance->Logs->Log("CONNECTCLASS", DEBUG, "Setting connect class for UID %s", this->uuid.c_str());
1835
1836         if (!explicit_name.empty())
1837         {
1838                 for (ClassVector::iterator i = ServerInstance->Config->Classes.begin(); i != ServerInstance->Config->Classes.end(); i++)
1839                 {
1840                         ConnectClass* c = *i;
1841
1842                         if (c->GetDisabled())
1843                                 continue; // can't possibly match, removed from conf
1844
1845                         if (explicit_name == c->GetName())
1846                         {
1847                                 ServerInstance->Logs->Log("CONNECTCLASS", DEBUG, "Explicitly set to %s", explicit_name.c_str());
1848                                 found = c;
1849                         }
1850                 }
1851         }
1852         else
1853         {
1854                 for (ClassVector::iterator i = ServerInstance->Config->Classes.begin(); i != ServerInstance->Config->Classes.end(); i++)
1855                 {
1856                         ConnectClass* c = *i;
1857
1858                         if (c->GetType() == CC_ALLOW)
1859                         {
1860                                 ServerInstance->Logs->Log("CONNECTCLASS", DEBUG, "ALLOW %s %d %s", c->GetHost().c_str(), c->GetPort(), c->GetName().c_str());
1861                         }
1862                         else
1863                         {
1864                                 ServerInstance->Logs->Log("CONNECTCLASS", DEBUG, "DENY %s %d %s", c->GetHost().c_str(), c->GetPort(), c->GetName().c_str());
1865                         }
1866
1867                         /* if it's disabled, we can't match this one. */
1868                         if (c->GetDisabled())
1869                         {
1870                                 ServerInstance->Logs->Log("CONNECTCLASS", DEBUG, "Class disabled");
1871                                 continue;
1872                         }
1873
1874                         /* check if host matches.. */
1875                         if (c->GetHost().length() && !InspIRCd::MatchCIDR(this->GetIPString(), c->GetHost(), NULL) &&
1876                             !InspIRCd::MatchCIDR(this->host, c->GetHost(), NULL))
1877                         {
1878                                 ServerInstance->Logs->Log("CONNECTCLASS", DEBUG, "No host match (for %s)", c->GetHost().c_str());
1879                                 continue;
1880                         }
1881
1882                         /*
1883                          * deny change if change will take class over the limit check it HERE, not after we found a matching class,
1884                          * because we should attempt to find another class if this one doesn't match us. -- w00t
1885                          */
1886                         if (c->limit && (c->RefCount + 1 >= c->limit))
1887                         {
1888                                 ServerInstance->Logs->Log("CONNECTCLASS", DEBUG, "OOPS: Connect class limit (%lu) hit, denying", c->limit);
1889                                 continue;
1890                         }
1891
1892                         /* if it requires a port ... */
1893                         if (c->GetPort())
1894                         {
1895                                 ServerInstance->Logs->Log("CONNECTCLASS", DEBUG, "Requires port (%d)", c->GetPort());
1896
1897                                 /* and our port doesn't match, fail. */
1898                                 if (this->GetPort() != c->GetPort())
1899                                 {
1900                                         ServerInstance->Logs->Log("CONNECTCLASS", DEBUG, "Port match failed (%d)", this->GetPort());
1901                                         continue;
1902                                 }
1903                         }
1904
1905                         /* we stop at the first class that meets ALL critera. */
1906                         found = c;
1907                         break;
1908                 }
1909         }
1910
1911         /*
1912          * Okay, assuming we found a class that matches.. switch us into that class, keeping refcounts up to date.
1913          */
1914         if (found)
1915         {
1916                 /* only fiddle with refcounts if they are already in a class .. */
1917                 if (this->MyClass)
1918                 {
1919                         if (found == this->MyClass) // no point changing this shit :P
1920                                 return this->MyClass;
1921                         this->MyClass->RefCount--;
1922                         ServerInstance->Logs->Log("USERS", DEBUG, "Untying user from connect class -- refcount: %lu", this->MyClass->RefCount);
1923                 }
1924
1925                 this->MyClass = found;
1926                 this->MyClass->RefCount++;
1927                 ServerInstance->Logs->Log("USERS", DEBUG, "User tied to new class -- connect refcount now: %lu", this->MyClass->RefCount);
1928         }
1929
1930         return this->MyClass;
1931 }
1932
1933 /* looks up a users password for their connection class (<ALLOW>/<DENY> tags)
1934  * NOTE: If the <ALLOW> or <DENY> tag specifies an ip, and this user resolves,
1935  * then their ip will be taken as 'priority' anyway, so for example,
1936  * <connect allow="127.0.0.1"> will match joe!bloggs@localhost
1937  */
1938 ConnectClass* User::GetClass()
1939 {
1940         return this->MyClass;
1941 }
1942
1943 void User::PurgeEmptyChannels()
1944 {
1945         std::vector<Channel*> to_delete;
1946
1947         // firstly decrement the count on each channel
1948         for (UCListIter f = this->chans.begin(); f != this->chans.end(); f++)
1949         {
1950                 f->first->RemoveAllPrefixes(this);
1951                 if (f->first->DelUser(this) == 0)
1952                 {
1953                         /* No users left in here, mark it for deletion */
1954                         try
1955                         {
1956                                 to_delete.push_back(f->first);
1957                         }
1958                         catch (...)
1959                         {
1960                                 ServerInstance->Logs->Log("USERS", DEBUG,"Exception in User::PurgeEmptyChannels to_delete.push_back()");
1961                         }
1962                 }
1963         }
1964
1965         for (std::vector<Channel*>::iterator n = to_delete.begin(); n != to_delete.end(); n++)
1966         {
1967                 Channel* thischan = *n;
1968                 chan_hash::iterator i2 = ServerInstance->chanlist->find(thischan->name);
1969                 if (i2 != ServerInstance->chanlist->end())
1970                 {
1971                         int MOD_RESULT = 0;
1972                         FOREACH_RESULT_I(ServerInstance,I_OnChannelPreDelete, OnChannelPreDelete(i2->second));
1973                         if (MOD_RESULT == 1)
1974                                 continue; // delete halted by module
1975                         FOREACH_MOD(I_OnChannelDelete,OnChannelDelete(i2->second));
1976                         delete i2->second;
1977                         ServerInstance->chanlist->erase(i2);
1978                         this->chans.erase(*n);
1979                 }
1980         }
1981
1982         this->UnOper();
1983 }
1984
1985 void User::ShowMOTD()
1986 {
1987         if (!ServerInstance->Config->MOTD.size())
1988         {
1989                 this->WriteNumeric(ERR_NOMOTD, "%s :Message of the day file is missing.",this->nick.c_str());
1990                 return;
1991         }
1992         this->WriteNumeric(RPL_MOTDSTART, "%s :%s message of the day", this->nick.c_str(), ServerInstance->Config->ServerName);
1993
1994         for (file_cache::iterator i = ServerInstance->Config->MOTD.begin(); i != ServerInstance->Config->MOTD.end(); i++)
1995                 this->WriteNumeric(RPL_MOTD, "%s :- %s",this->nick.c_str(),i->c_str());
1996
1997         this->WriteNumeric(RPL_ENDOFMOTD, "%s :End of message of the day.", this->nick.c_str());
1998 }
1999
2000 void User::ShowRULES()
2001 {
2002         if (!ServerInstance->Config->RULES.size())
2003         {
2004                 this->WriteNumeric(ERR_NORULES, "%s :RULES File is missing",this->nick.c_str());
2005                 return;
2006         }
2007
2008         this->WriteNumeric(RPL_RULESTART, "%s :- %s Server Rules -",this->nick.c_str(),ServerInstance->Config->ServerName);
2009
2010         for (file_cache::iterator i = ServerInstance->Config->RULES.begin(); i != ServerInstance->Config->RULES.end(); i++)
2011                 this->WriteNumeric(RPL_RULES, "%s :- %s",this->nick.c_str(),i->c_str());
2012
2013         this->WriteNumeric(RPL_RULESEND, "%s :End of RULES command.",this->nick.c_str());
2014 }
2015
2016 void User::HandleEvent(EventType et, int errornum)
2017 {
2018         if (this->quitting) // drop everything, user is due to be quit
2019                 return;
2020
2021         switch (et)
2022         {
2023                 case EVENT_READ:
2024                         ServerInstance->ProcessUser(this);
2025                 break;
2026                 case EVENT_WRITE:
2027                         this->FlushWriteBuf();
2028                 break;
2029                 case EVENT_ERROR:
2030                         ServerInstance->Users->QuitUser(this, errornum ? strerror(errornum) : "Client closed the connection");
2031                 break;
2032         }
2033 }
2034
2035 void User::SetOperQuit(const std::string &oquit)
2036 {
2037         operquitmsg = oquit;
2038 }
2039
2040 const std::string& User::GetOperQuit()
2041 {
2042         return operquitmsg;
2043 }
2044
2045 void User::IncreasePenalty(int increase)
2046 {
2047         this->Penalty += increase;
2048 }
2049
2050 void User::DecreasePenalty(int decrease)
2051 {
2052         this->Penalty -= decrease;
2053 }
2054
2055 void FakeUser::SetFakeServer(std::string name)
2056 {
2057         this->nick = name;
2058         this->server = nick.c_str();
2059 }
2060
2061 const std::string FakeUser::GetFullHost()
2062 {
2063         if (*ServerInstance->Config->HideWhoisServer)
2064                 return ServerInstance->Config->HideWhoisServer;
2065         return nick;
2066 }
2067
2068 const std::string FakeUser::GetFullRealHost()
2069 {
2070         if (*ServerInstance->Config->HideWhoisServer)
2071                 return ServerInstance->Config->HideWhoisServer;
2072         return nick;
2073 }
2074
2075 VisData::VisData()
2076 {
2077 }
2078
2079 VisData::~VisData()
2080 {
2081 }
2082
2083 bool VisData::VisibleTo(User* user)
2084 {
2085         return true;
2086 }