src/users.cpp

   1 /*       +------------------------------------+
   2  *       | Inspire Internet Relay Chat Daemon |
   3  *       +------------------------------------+
   4  *
   5  *  Inspire is copyright (C) 2002-2006 ChatSpike-Dev.
   6  *                       E-mail:
   7  *                <brain@chatspike.net>
   8  *                <Craig@chatspike.net>
   9  *
  10  * Written by Craig Edwards, Craig McLure, and others.
  11  * This program is free but copyrighted software; see
  12  *            the file COPYING for details.
  13  *
  14  * ---------------------------------------------------
  15  */
  16
  17 using namespace std;
  18
  19 #include "inspircd_config.h"
  20 #include "channels.h"
  21 #include "connection.h"
  22 #include "users.h"
  23 #include "inspircd.h"
  24 #include <stdio.h>
  25 #ifdef THREADED_DNS
  26 #include <pthread.h>
  27 #include <signal.h>
  28 #endif
  29 #include "inspstring.h"
  30 #include "commands.h"
  31 #include "helperfuncs.h"
  32 #include "typedefs.h"
  33 #include "socketengine.h"
  34 #include "hashcomp.h"
  35 #include "message.h"
  36 #include "wildcard.h"
  37 #include "xline.h"
  38
  39 extern InspIRCd* ServerInstance;
  40 extern int WHOWAS_STALE;
  41 extern int WHOWAS_MAX;
  42 extern std::vector<Module*> modules;
  43 extern std::vector<ircd_module*> factory;
  44 extern std::vector<InspSocket*> module_sockets;
  45 extern int MODCOUNT;
  46 extern InspSocket* socket_ref[65535];
  47 extern time_t TIME;
  48 extern userrec* fd_ref_table[65536];
  49 extern ServerConfig *Config;
  50 extern user_hash clientlist;
  51 extern whowas_hash whowas;
  52 extern std::vector<userrec*> local_users;
  53
  54 std::vector<userrec*> all_opers;
  55
  56 template<typename T> inline string ConvToStr(const T &in)
  57 {
  58         stringstream tmp;
  59         if (!(tmp << in)) return string();
  60         return tmp.str();
  61 }
  62
  63 userrec::userrec()
  64 {
  65         // the PROPER way to do it, AVOID bzero at *ALL* costs
  66         *nick = *ident = *host = *dhost = *fullname = *modes = *awaymsg = *oper = *ip = 0;
  67         server = (char*)FindServerNamePtr(Config->ServerName);
  68         reset_due = TIME;
  69         lines_in = fd = lastping = signon = idle_lastmsg = nping = registered = 0;
  70         timeout = flood = port = bytes_in = bytes_out = cmds_in = cmds_out = 0;
  71         haspassed = dns_done = false;
  72         recvq = "";
  73         sendq = "";
  74         chans.clear();
  75         invites.clear();
  76 }
  77
  78 userrec::~userrec()
  79 {
  80 }
  81
  82 void userrec::CloseSocket()
  83 {
  84         shutdown(this->fd,2);
  85         close(this->fd);
  86 }
  87
  88 char* userrec::GetFullHost()
  89 {
  90         static char result[MAXBUF];
  91         snprintf(result,MAXBUF,"%s!%s@%s",nick,ident,dhost);
  92         return result;
  93 }
  94
  95 int userrec::ReadData(void* buffer, size_t size)
  96 {
  97         if (this->fd > -1)
  98         {
  99                 return read(this->fd, buffer, size);
 100         }
 101         else return 0;
 102 }
 103
 104
 105 char* userrec::GetFullRealHost()
 106 {
 107         static char fresult[MAXBUF];
 108         snprintf(fresult,MAXBUF,"%s!%s@%s",nick,ident,host);
 109         return fresult;
 110 }
 111
 112 bool userrec::IsInvited(irc::string &channel)
 113 {
 114         for (InvitedList::iterator i = invites.begin(); i != invites.end(); i++)
 115         {
 116                 irc::string compare = i->channel;
 117                 if (compare == channel)
 118                 {
 119                         return true;
 120                 }
 121         }
 122         return false;
 123 }
 124
 125 InvitedList* userrec::GetInviteList()
 126 {
 127         return &invites;
 128 }
 129
 130 void userrec::InviteTo(irc::string &channel)
 131 {
 132         Invited i;
 133         i.channel = channel;
 134         invites.push_back(i);
 135 }
 136
 137 void userrec::RemoveInvite(irc::string &channel)
 138 {
 139         log(DEBUG,"Removing invites");
 140         if (invites.size())
 141         {
 142                 for (InvitedList::iterator i = invites.begin(); i != invites.end(); i++)
 143                 {
 144                         irc::string compare = i->channel;
 145                         if (compare == channel)
 146                         {
 147                                 invites.erase(i);
 148                                 return;
 149                         }
 150                 }
 151         }
 152 }
 153
 154 bool userrec::HasPermission(std::string &command)
 155 {
 156         char TypeName[MAXBUF],Classes[MAXBUF],ClassName[MAXBUF],CommandList[MAXBUF];
 157         char* mycmd;
 158         char* savept;
 159         char* savept2;
 160
 161         // users on u-lined servers can completely bypass
 162         // all permissions based checks.
 163         //
 164         // of course, if this is sent to a remote server and this
 165         // server is not ulined there, then that other server
 166         // silently drops the command.
 167         if (is_uline(this->server))
 168                 return true;
 169
 170         // are they even an oper at all?
 171         if (strchr(this->modes,'o'))
 172         {
 173                 for (int j =0; j < Config->ConfValueEnum("type",&Config->config_f); j++)
 174                 {
 175                         Config->ConfValue("type","name",j,TypeName,&Config->config_f);
 176                         if (!strcmp(TypeName,this->oper))
 177                         {
 178                                 Config->ConfValue("type","classes",j,Classes,&Config->config_f);
 179                                 char* myclass = strtok_r(Classes," ",&savept);
 180                                 while (myclass)
 181                                 {
 182                                         for (int k =0; k < Config->ConfValueEnum("class",&Config->config_f); k++)
 183                                         {
 184                                                 Config->ConfValue("class","name",k,ClassName,&Config->config_f);
 185                                                 if (!strcmp(ClassName,myclass))
 186                                                 {
 187                                                         Config->ConfValue("class","commands",k,CommandList,&Config->config_f);
 188                                                         mycmd = strtok_r(CommandList," ",&savept2);
 189                                                         while (mycmd)
 190                                                         {
 191                                                                 if ((!strcasecmp(mycmd,command.c_str())) || (*mycmd == '*'))
 192                                                                 {
 193                                                                         return true;
 194                                                                 }
 195                                                                 mycmd = strtok_r(NULL," ",&savept2);
 196                                                         }
 197                                                 }
 198                                         }
 199                                         myclass = strtok_r(NULL," ",&savept);
 200                                 }
 201                         }
 202                 }
 203         }
 204         return false;
 205 }
 206
 207
 208 bool userrec::AddBuffer(std::string a)
 209 {
 210         std::string b = "";
 211         for (unsigned int i = 0; i < a.length(); i++)
 212                 if ((a[i] != '\r') && (a[i] != '\0') && (a[i] != 7))
 213                         b = b + a[i];
 214         std::stringstream stream(recvq);
 215         stream << b;
 216         recvq = stream.str();
 217         unsigned int i = 0;
 218         // count the size of the first line in the buffer.
 219         while (i < recvq.length())
 220         {
 221                 if (recvq[i++] == '\n')
 222                         break;
 223         }
 224         if (recvq.length() > (unsigned)this->recvqmax)
 225         {
 226                 this->SetWriteError("RecvQ exceeded");
 227                 WriteOpers("*** User %s RecvQ of %d exceeds connect class maximum of %d",this->nick,recvq.length(),this->recvqmax);
 228         }
 229         // return false if we've had more than 600 characters WITHOUT
 230         // a carriage return (this is BAD, drop the socket)
 231         return (i < 600);
 232 }
 233
 234 bool userrec::BufferIsReady()
 235 {
 236         for (unsigned int i = 0; i < recvq.length(); i++)
 237                 if (recvq[i] == '\n')
 238                         return true;
 239         return false;
 240 }
 241
 242 void userrec::ClearBuffer()
 243 {
 244         recvq = "";
 245 }
 246
 247 std::string userrec::GetBuffer()
 248 {
 249         if (recvq == "")
 250                 return "";
 251         char* line = (char*)recvq.c_str();
 252         std::string ret = "";
 253         while ((*line != '\n') && (strlen(line)))
 254         {
 255                 ret = ret + *line;
 256                 line++;
 257         }
 258         if ((*line == '\n') || (*line == '\r'))
 259                 line++;
 260         recvq = line;
 261         return ret;
 262 }
 263
 264 void userrec::AddWriteBuf(std::string data)
 265 {
 266         if (this->GetWriteError() != "")
 267                 return;
 268         if (sendq.length() + data.length() > (unsigned)this->sendqmax)
 269         {
 270                 /* Fix by brain - Set the error text BEFORE calling writeopers, because
 271                  * if we dont it'll recursively  call here over and over again trying
 272                  * to repeatedly add the text to the sendq!
 273                  */
 274                 this->SetWriteError("SendQ exceeded");
 275                 WriteOpers("*** User %s SendQ of %d exceeds connect class maximum of %d",this->nick,sendq.length() + data.length(),this->sendqmax);
 276                 return;
 277         }
 278         std::stringstream stream;
 279         stream << sendq << data;
 280         sendq = stream.str();
 281 }
 282
 283 // send AS MUCH OF THE USERS SENDQ as we are able to (might not be all of it)
 284 void userrec::FlushWriteBuf()
 285 {
 286         if (sendq.length())
 287         {
 288                 char* tb = (char*)this->sendq.c_str();
 289                 int n_sent = write(this->fd,tb,this->sendq.length());
 290                 if (n_sent == -1)
 291                 {
 292                         this->SetWriteError(strerror(errno));
 293                 }
 294                 else
 295                 {
 296                         // advance the queue
 297                         tb += n_sent;
 298                         this->sendq = tb;
 299                         // update the user's stats counters
 300                         this->bytes_out += n_sent;
 301                         this->cmds_out++;
 302                 }
 303         }
 304 }
 305
 306 void userrec::SetWriteError(std::string error)
 307 {
 308         log(DEBUG,"Setting error string for %s to '%s'",this->nick,error.c_str());
 309         // don't try to set the error twice, its already set take the first string.
 310         if (this->WriteError == "")
 311                 this->WriteError = error;
 312 }
 313
 314 std::string userrec::GetWriteError()
 315 {
 316         return this->WriteError;
 317 }
 318
 319 void AddOper(userrec* user)
 320 {
 321         log(DEBUG,"Oper added to optimization list");
 322         all_opers.push_back(user);
 323 }
 324
 325 void DeleteOper(userrec* user)
 326 {
 327         for (std::vector<userrec*>::iterator a = all_opers.begin(); a < all_opers.end(); a++)
 328         {
 329                 if (*a == user)
 330                 {
 331                         log(DEBUG,"Oper removed from optimization list");
 332                         all_opers.erase(a);
 333                         return;
 334                 }
 335         }
 336 }
 337
 338 void kill_link(userrec *user,const char* r)
 339 {
 340         user_hash::iterator iter = clientlist.find(user->nick);
 341
 342         char reason[MAXBUF];
 343
 344         strncpy(reason,r,MAXBUF);
 345
 346         if (strlen(reason)>MAXQUIT)
 347         {
 348                 reason[MAXQUIT-1] = '\0';
 349         }
 350
 351         log(DEBUG,"kill_link: %s '%s'",user->nick,reason);
 352         Write(user->fd,"ERROR :Closing link (%s@%s) [%s]",user->ident,user->host,reason);
 353         log(DEBUG,"closing fd %lu",(unsigned long)user->fd);
 354
 355         if (user->registered == 7) {
 356                 FOREACH_MOD(I_OnUserQuit,OnUserQuit(user,reason));
 357                 WriteCommonExcept(user,"QUIT :%s",reason);
 358         }
 359
 360         user->FlushWriteBuf();
 361
 362         FOREACH_MOD(I_OnUserDisconnect,OnUserDisconnect(user));
 363
 364         if (user->fd > -1)
 365         {
 366                 if (Config->GetIOHook(user->port))
 367                 {
 368                         Config->GetIOHook(user->port)->OnRawSocketClose(user->fd);
 369                 }
 370                 ServerInstance->SE->DelFd(user->fd);
 371                 user->CloseSocket();
 372         }
 373
 374         // this must come before the WriteOpers so that it doesnt try to fill their buffer with anything
 375         // if they were an oper with +s.
 376         if (user->registered == 7) {
 377                 purge_empty_chans(user);
 378                 // fix by brain: only show local quits because we only show local connects (it just makes SENSE)
 379                 if (user->fd > -1)
 380                         WriteOpers("*** Client exiting: %s!%s@%s [%s]",user->nick,user->ident,user->host,reason);
 381                 AddWhoWas(user);
 382         }
 383
 384         if (iter != clientlist.end())
 385         {
 386                 log(DEBUG,"deleting user hash value %lu",(unsigned long)user);
 387                 if (user->fd > -1)
 388                 {
 389                         fd_ref_table[user->fd] = NULL;
 390                         if (find(local_users.begin(),local_users.end(),user) != local_users.end())
 391                         {
 392                                 local_users.erase(find(local_users.begin(),local_users.end(),user));
 393                                 log(DEBUG,"Delete local user");
 394                         }
 395                 }
 396                 clientlist.erase(iter);
 397         }
 398         delete user;
 399 }
 400
 401 void kill_link_silent(userrec *user,const char* r)
 402 {
 403         user_hash::iterator iter = clientlist.find(user->nick);
 404
 405         char reason[MAXBUF];
 406
 407         strncpy(reason,r,MAXBUF);
 408
 409         if (strlen(reason)>MAXQUIT)
 410         {
 411                 reason[MAXQUIT-1] = '\0';
 412         }
 413
 414         log(DEBUG,"kill_link: %s '%s'",user->nick,reason);
 415         Write(user->fd,"ERROR :Closing link (%s@%s) [%s]",user->ident,user->host,reason);
 416         log(DEBUG,"closing fd %lu",(unsigned long)user->fd);
 417
 418         user->FlushWriteBuf();
 419
 420         if (user->registered == 7) {
 421                 FOREACH_MOD(I_OnUserQuit,OnUserQuit(user,reason));
 422                 WriteCommonExcept(user,"QUIT :%s",reason);
 423         }
 424
 425         FOREACH_MOD(I_OnUserDisconnect,OnUserDisconnect(user));
 426
 427         if (user->fd > -1)
 428         {
 429                 if (Config->GetIOHook(user->port))
 430                 {
 431                         Config->GetIOHook(user->port)->OnRawSocketClose(user->fd);
 432                 }
 433                 ServerInstance->SE->DelFd(user->fd);
 434                 user->CloseSocket();
 435         }
 436
 437         if (user->registered == 7) {
 438                 purge_empty_chans(user);
 439         }
 440
 441         if (iter != clientlist.end())
 442         {
 443                 log(DEBUG,"deleting user hash value %lu",(unsigned long)user);
 444                 if (user->fd > -1)
 445                 {
 446                         fd_ref_table[user->fd] = NULL;
 447                         if (find(local_users.begin(),local_users.end(),user) != local_users.end())
 448                         {
 449                                 log(DEBUG,"Delete local user");
 450                                 local_users.erase(find(local_users.begin(),local_users.end(),user));
 451                         }
 452                 }
 453                 clientlist.erase(iter);
 454         }
 455         delete user;
 456 }
 457
 458
 459 /* adds or updates an entry in the whowas list */
 460 void AddWhoWas(userrec* u)
 461 {
 462         whowas_hash::iterator iter = whowas.find(u->nick);
 463         WhoWasUser *a = new WhoWasUser();
 464         strlcpy(a->nick,u->nick,NICKMAX);
 465         strlcpy(a->ident,u->ident,IDENTMAX);
 466         strlcpy(a->dhost,u->dhost,160);
 467         strlcpy(a->host,u->host,160);
 468         strlcpy(a->fullname,u->fullname,MAXGECOS);
 469         strlcpy(a->server,u->server,256);
 470         a->signon = u->signon;
 471
 472         /* MAX_WHOWAS:   max number of /WHOWAS items
 473          * WHOWAS_STALE: number of hours before a WHOWAS item is marked as stale and
 474          *               can be replaced by a newer one
 475          */
 476
 477         if (iter == whowas.end())
 478         {
 479                 if (whowas.size() >= (unsigned)WHOWAS_MAX)
 480                 {
 481                         for (whowas_hash::iterator i = whowas.begin(); i != whowas.end(); i++)
 482                         {
 483                                 // 3600 seconds in an hour ;)
 484                                 if ((i->second->signon)<(TIME-(WHOWAS_STALE*3600)))
 485                                 {
 486                                         // delete the old one
 487                                         if (i->second) delete i->second;
 488                                         // replace with new one
 489                                         i->second = a;
 490                                         log(DEBUG,"added WHOWAS entry, purged an old record");
 491                                         return;
 492                                 }
 493                         }
 494                         // no space left and user doesnt exist. Don't leave ram in use!
 495                         log(DEBUG,"Not able to update whowas (list at WHOWAS_MAX entries and trying to add new?), freeing excess ram");
 496                         delete a;
 497                 }
 498                 else
 499                 {
 500                         log(DEBUG,"added fresh WHOWAS entry");
 501                         whowas[a->nick] = a;
 502                 }
 503         }
 504         else
 505         {
 506                 log(DEBUG,"updated WHOWAS entry");
 507                 if (iter->second) delete iter->second;
 508                 iter->second = a;
 509         }
 510 }
 511
 512 /* add a client connection to the sockets list */
 513 void AddClient(int socket, char* host, int port, bool iscached, char* ip)
 514 {
 515         string tempnick;
 516         char tn2[MAXBUF];
 517         user_hash::iterator iter;
 518
 519         tempnick = ConvToStr(socket) + "-unknown";
 520         sprintf(tn2,"%lu-unknown",(unsigned long)socket);
 521
 522         iter = clientlist.find(tempnick);
 523
 524         // fix by brain.
 525         // as these nicknames are 'RFC impossible', we can be sure nobody is going to be
 526         // using one as a registered connection. As theyre per fd, we can also safely assume
 527         // that we wont have collisions. Therefore, if the nick exists in the list, its only
 528         // used by a dead socket, erase the iterator so that the new client may reclaim it.
 529         // this was probably the cause of 'server ignores me when i hammer it with reconnects'
 530         // issue in earlier alphas/betas
 531         if (iter != clientlist.end())
 532         {
 533                 userrec* goner = iter->second;
 534                 delete goner;
 535                 clientlist.erase(iter);
 536         }
 537
 538         /*
 539          * It is OK to access the value here this way since we know
 540          * it exists, we just created it above.
 541          *
 542          * At NO other time should you access a value in a map or a
 543          * hash_map this way.
 544          */
 545         clientlist[tempnick] = new userrec();
 546
 547         log(DEBUG,"AddClient: %lu %s %d %s",(unsigned long)socket,host,port,ip);
 548
 549         clientlist[tempnick]->fd = socket;
 550         strlcpy(clientlist[tempnick]->nick, tn2,NICKMAX);
 551         strlcpy(clientlist[tempnick]->host, host,160);
 552         strlcpy(clientlist[tempnick]->dhost, host,160);
 553         clientlist[tempnick]->server = (char*)FindServerNamePtr(Config->ServerName);
 554         strlcpy(clientlist[tempnick]->ident, "unknown",IDENTMAX);
 555         clientlist[tempnick]->registered = 0;
 556         clientlist[tempnick]->signon = TIME + Config->dns_timeout;
 557         clientlist[tempnick]->lastping = 1;
 558         clientlist[tempnick]->port = port;
 559         strlcpy(clientlist[tempnick]->ip,ip,16);
 560
 561         // set the registration timeout for this user
 562         unsigned long class_regtimeout = 90;
 563         int class_flood = 0;
 564         long class_threshold = 5;
 565         long class_sqmax = 262144;      // 256kb
 566         long class_rqmax = 4096;        // 4k
 567
 568         for (ClassVector::iterator i = Config->Classes.begin(); i != Config->Classes.end(); i++)
 569         {
 570                 if (match(clientlist[tempnick]->host,i->host.c_str()) && (i->type == CC_ALLOW))
 571                 {
 572                         class_regtimeout = (unsigned long)i->registration_timeout;
 573                         class_flood = i->flood;
 574                         clientlist[tempnick]->pingmax = i->pingtime;
 575                         class_threshold = i->threshold;
 576                         class_sqmax = i->sendqmax;
 577                         class_rqmax = i->recvqmax;
 578                         break;
 579                 }
 580         }
 581
 582         clientlist[tempnick]->nping = TIME+clientlist[tempnick]->pingmax + Config->dns_timeout;
 583         clientlist[tempnick]->timeout = TIME+class_regtimeout;
 584         clientlist[tempnick]->flood = class_flood;
 585         clientlist[tempnick]->threshold = class_threshold;
 586         clientlist[tempnick]->sendqmax = class_sqmax;
 587         clientlist[tempnick]->recvqmax = class_rqmax;
 588
 589         ucrec a;
 590         a.channel = NULL;
 591         a.uc_modes = 0;
 592         for (int i = 0; i < MAXCHANS; i++)
 593                 clientlist[tempnick]->chans.push_back(a);
 594
 595         if (clientlist.size() > Config->SoftLimit)
 596         {
 597                 kill_link(clientlist[tempnick],"No more connections allowed");
 598                 return;
 599         }
 600
 601         if (clientlist.size() >= MAXCLIENTS)
 602         {
 603                 kill_link(clientlist[tempnick],"No more connections allowed");
 604                 return;
 605         }
 606
 607         // this is done as a safety check to keep the file descriptors within range of fd_ref_table.
 608         // its a pretty big but for the moment valid assumption:
 609         // file descriptors are handed out starting at 0, and are recycled as theyre freed.
 610         // therefore if there is ever an fd over 65535, 65536 clients must be connected to the
 611         // irc server at once (or the irc server otherwise initiating this many connections, files etc)
 612         // which for the time being is a physical impossibility (even the largest networks dont have more
 613         // than about 10,000 users on ONE server!)
 614         if ((unsigned)socket > 65534)
 615         {
 616                 kill_link(clientlist[tempnick],"Server is full");
 617                 return;
 618         }
 619         char* e = matches_exception(ip);
 620         if (!e)
 621         {
 622                 char* r = matches_zline(ip);
 623                 if (r)
 624                 {
 625                         char reason[MAXBUF];
 626                         snprintf(reason,MAXBUF,"Z-Lined: %s",r);
 627                         kill_link(clientlist[tempnick],reason);
 628                         return;
 629                 }
 630         }
 631         fd_ref_table[socket] = clientlist[tempnick];
 632         local_users.push_back(clientlist[tempnick]);
 633         ServerInstance->SE->AddFd(socket,true,X_ESTAB_CLIENT);
 634 }
 635
 636 void FullConnectUser(userrec* user)
 637 {
 638         ServerInstance->stats->statsConnects++;
 639         user->idle_lastmsg = TIME;
 640         log(DEBUG,"ConnectUser: %s",user->nick);
 641
 642         if ((strcmp(Passwd(user),"")) && (!user->haspassed))
 643         {
 644                 kill_link(user,"Invalid password");
 645                 return;
 646         }
 647         if (IsDenied(user))
 648         {
 649                 kill_link(user,"Unauthorised connection");
 650                 return;
 651         }
 652
 653         char match_against[MAXBUF];
 654         snprintf(match_against,MAXBUF,"%s@%s",user->ident,user->host);
 655         char* e = matches_exception(match_against);
 656         if (!e)
 657         {
 658                 char* r = matches_gline(match_against);
 659                 if (r)
 660                 {
 661                         char reason[MAXBUF];
 662                         snprintf(reason,MAXBUF,"G-Lined: %s",r);
 663                         kill_link_silent(user,reason);
 664                         return;
 665                 }
 666                 r = matches_kline(user->host);
 667                 if (r)
 668                 {
 669                         char reason[MAXBUF];
 670                         snprintf(reason,MAXBUF,"K-Lined: %s",r);
 671                         kill_link_silent(user,reason);
 672                         return;
 673                 }
 674         }
 675
 676
 677         WriteServ(user->fd,"NOTICE Auth :Welcome to \002%s\002!",Config->Network);
 678         WriteServ(user->fd,"001 %s :Welcome to the %s IRC Network %s!%s@%s",user->nick,Config->Network,user->nick,user->ident,user->host);
 679         WriteServ(user->fd,"002 %s :Your host is %s, running version %s",user->nick,Config->ServerName,VERSION);
 680         WriteServ(user->fd,"003 %s :This server was created %s %s",user->nick,__TIME__,__DATE__);
 681         WriteServ(user->fd,"004 %s %s %s iowghraAsORVSxNCWqBzvdHtGI lvhopsmntikrRcaqOALQbSeKVfHGCuzN",user->nick,Config->ServerName,VERSION);
 682         // the neatest way to construct the initial 005 numeric, considering the number of configure constants to go in it...
 683         std::stringstream v;
 684         v << "WALLCHOPS MODES=13 CHANTYPES=# PREFIX=(ohv)@%+ MAP SAFELIST MAXCHANNELS=" << MAXCHANS;
 685         v << " MAXBANS=60 NICKLEN=" << NICKMAX;
 686         v << " TOPICLEN=" << MAXTOPIC << " KICKLEN=" << MAXKICK << " MAXTARGETS=20 AWAYLEN=" << MAXAWAY << " CHANMODES=ohvb,k,l,psmnti NETWORK=";
 687         v << Config->Network;
 688         std::string data005 = v.str();
 689         FOREACH_MOD(I_On005Numeric,On005Numeric(data005));
 690         // anfl @ #ratbox, efnet reminded me that according to the RFC this cant contain more than 13 tokens per line...
 691         // so i'd better split it :)
 692         std::stringstream out(data005);
 693         std::string token = "";
 694         std::string line5 = "";
 695         int token_counter = 0;
 696         while (!out.eof())
 697         {
 698                 out >> token;
 699                 line5 = line5 + token + " ";
 700                 token_counter++;
 701                 if ((token_counter >= 13) || (out.eof() == true))
 702                 {
 703                         WriteServ(user->fd,"005 %s %s:are supported by this server",user->nick,line5.c_str());
 704                         line5 = "";
 705                         token_counter = 0;
 706                 }
 707         }
 708         ShowMOTD(user);
 709
 710         // fix 3 by brain, move registered = 7 below these so that spurious modes and host changes dont go out
 711         // onto the network and produce 'fake direction'
 712         FOREACH_MOD(I_OnUserConnect,OnUserConnect(user));
 713         FOREACH_MOD(I_OnGlobalConnect,OnGlobalConnect(user));
 714         user->registered = 7;
 715         WriteOpers("*** Client connecting on port %lu: %s!%s@%s [%s]",(unsigned long)user->port,user->nick,user->ident,user->host,user->ip);
 716 }
 717
 718
 719 /* shows the message of the day, and any other on-logon stuff */
 720 void ConnectUser(userrec *user)
 721 {
 722         // dns is already done, things are fast. no need to wait for dns to complete just pass them straight on
 723         if ((user->dns_done) && (user->registered >= 3) && (AllModulesReportReady(user)))
 724         {
 725                 FullConnectUser(user);
 726         }
 727 }
 728
 729 /* re-allocates a nick in the user_hash after they change nicknames,
 730  * returns a pointer to the new user as it may have moved */
 731
 732 userrec* ReHashNick(char* Old, char* New)
 733 {
 734         //user_hash::iterator newnick;
 735         user_hash::iterator oldnick = clientlist.find(Old);
 736
 737         log(DEBUG,"ReHashNick: %s %s",Old,New);
 738
 739         if (!strcasecmp(Old,New))
 740         {
 741                 log(DEBUG,"old nick is new nick, skipping");
 742                 return oldnick->second;
 743         }
 744
 745         if (oldnick == clientlist.end()) return NULL; /* doesnt exist */
 746
 747         log(DEBUG,"ReHashNick: Found hashed nick %s",Old);
 748
 749         userrec* olduser = oldnick->second;
 750         clientlist[New] = olduser;
 751         clientlist.erase(oldnick);
 752
 753         log(DEBUG,"ReHashNick: Nick rehashed as %s",New);
 754
 755         return clientlist[New];
 756 }
 757
 758 void force_nickchange(userrec* user,const char* newnick)
 759 {
 760         char nick[MAXBUF];
 761         int MOD_RESULT = 0;
 762
 763         *nick = 0;
 764
 765         FOREACH_RESULT(I_OnUserPreNick,OnUserPreNick(user,newnick));
 766         if (MOD_RESULT) {
 767                 ServerInstance->stats->statsCollisions++;
 768                 kill_link(user,"Nickname collision");
 769                 return;
 770         }
 771         if (matches_qline(newnick))
 772         {
 773                 ServerInstance->stats->statsCollisions++;
 774                 kill_link(user,"Nickname collision");
 775                 return;
 776         }
 777
 778         if (user)
 779         {
 780                 if (newnick)
 781                 {
 782                         strncpy(nick,newnick,MAXBUF);
 783                 }
 784                 if (user->registered == 7)
 785                 {
 786                         char* pars[1];
 787                         pars[0] = nick;
 788                         std::string cmd = "NICK";
 789                         ServerInstance->Parser->CallHandler(cmd,pars,1,user);
 790                 }
 791         }
 792 }
 793