src/commands.cpp

   1 #include "inspircd.h"
   2 #include "inspircd_io.h"
   3 #include "inspircd_util.h"
   4 #include "inspircd_config.h"
   5 #include <unistd.h>
   6 #include <fcntl.h>
   7 #include <sys/errno.h>
   8 #include <sys/ioctl.h>
   9 #include <sys/utsname.h>
  10 #include <cstdio>
  11 #include <time.h>
  12 #include <string>
  13 #ifdef GCC3
  14 #include <ext/hash_map>
  15 #else
  16 #include <hash_map>
  17 #endif
  18 #include <map>
  19 #include <sstream>
  20 #include <vector>
  21 #include <errno.h>
  22 #include <deque>
  23 #include <errno.h>
  24 #include <unistd.h>
  25 #include <sched.h>
  26 #include "connection.h"
  27 #include "users.h"
  28 #include "servers.h"
  29 #include "ctables.h"
  30 #include "globals.h"
  31 #include "modules.h"
  32 #include "dynamic.h"
  33 #include "wildcard.h"
  34 #include "message.h"
  35 #include "mode.h"
  36
  37 #ifdef GCC3
  38 #define nspace __gnu_cxx
  39 #else
  40 #define nspace std
  41 #endif
  42
  43 using namespace std;
  44
  45 extern int MODCOUNT;
  46 extern vector<Module*> modules;
  47 extern vector<ircd_module*> factory;
  48
  49 extern int LogLevel;
  50 extern char ServerName[MAXBUF];
  51 extern char Network[MAXBUF];
  52 extern char ServerDesc[MAXBUF];
  53 extern char AdminName[MAXBUF];
  54 extern char AdminEmail[MAXBUF];
  55 extern char AdminNick[MAXBUF];
  56 extern char diepass[MAXBUF];
  57 extern char restartpass[MAXBUF];
  58 extern char motd[MAXBUF];
  59 extern char rules[MAXBUF];
  60 extern char list[MAXBUF];
  61 extern char PrefixQuit[MAXBUF];
  62 extern char DieValue[MAXBUF];
  63
  64 extern int debugging;
  65 extern int WHOWAS_STALE;
  66 extern int WHOWAS_MAX;
  67 extern int DieDelay;
  68 extern time_t startup_time;
  69 extern int NetBufferSize;
  70 extern time_t nb_start;
  71
  72 extern std::vector<int> fd_reap;
  73 extern std::vector<std::string> module_names;
  74
  75 extern char bannerBuffer[MAXBUF];
  76 extern int boundPortCount;
  77 extern int portCount;
  78 extern int UDPportCount;
  79 extern int ports[MAXSOCKS];
  80 extern int defaultRoute;
  81
  82 extern std::vector<long> auth_cookies;
  83 extern std::stringstream config_f;
  84
  85 extern serverrec* me[32];
  86
  87 extern FILE *log_file;
  88
  89 namespace nspace
  90 {
  91         template<> struct nspace::hash<in_addr>
  92         {
  93                 size_t operator()(const struct in_addr &a) const
  94                 {
  95                         size_t q;
  96                         memcpy(&q,&a,sizeof(size_t));
  97                         return q;
  98                 }
  99         };
 100
 101         template<> struct nspace::hash<string>
 102         {
 103                 size_t operator()(const string &s) const
 104                 {
 105                         char a[MAXBUF];
 106                         static struct hash<const char *> strhash;
 107                         strcpy(a,s.c_str());
 108                         strlower(a);
 109                         return strhash(a);
 110                 }
 111         };
 112 }
 113
 114
 115 struct StrHashComp
 116 {
 117
 118         bool operator()(const string& s1, const string& s2) const
 119         {
 120                 char a[MAXBUF],b[MAXBUF];
 121                 strcpy(a,s1.c_str());
 122                 strcpy(b,s2.c_str());
 123                 return (strcasecmp(a,b) == 0);
 124         }
 125
 126 };
 127
 128 struct InAddr_HashComp
 129 {
 130
 131         bool operator()(const in_addr &s1, const in_addr &s2) const
 132         {
 133                 size_t q;
 134                 size_t p;
 135
 136                 memcpy(&q,&s1,sizeof(size_t));
 137                 memcpy(&p,&s2,sizeof(size_t));
 138
 139                 return (q == p);
 140         }
 141
 142 };
 143
 144
 145 typedef nspace::hash_map<std::string, userrec*, nspace::hash<string>, StrHashComp> user_hash;
 146 typedef nspace::hash_map<std::string, chanrec*, nspace::hash<string>, StrHashComp> chan_hash;
 147 typedef nspace::hash_map<in_addr,string*, nspace::hash<in_addr>, InAddr_HashComp> address_cache;
 148 typedef std::deque<command_t> command_table;
 149
 150
 151 extern user_hash clientlist;
 152 extern chan_hash chanlist;
 153 extern user_hash whowas;
 154 extern command_table cmdlist;
 155 extern file_cache MOTD;
 156 extern file_cache RULES;
 157 extern address_cache IP;
 158
 159
 160 void handle_join(char **parameters, int pcnt, userrec *user)
 161 {
 162         chanrec* Ptr;
 163         int i = 0;
 164
 165         if (loop_call(handle_join,parameters,pcnt,user,0,0,1))
 166                 return;
 167         if (parameters[0][0] == '#')
 168         {
 169                 Ptr = add_channel(user,parameters[0],parameters[1],false);
 170         }
 171 }
 172
 173
 174 void handle_part(char **parameters, int pcnt, userrec *user)
 175 {
 176         chanrec* Ptr;
 177
 178         if (pcnt > 1)
 179         {
 180                 if (loop_call(handle_part,parameters,pcnt,user,0,pcnt-2,0))
 181                         return;
 182                 del_channel(user,parameters[0],parameters[1],false);
 183         }
 184         else
 185         {
 186                 if (loop_call(handle_part,parameters,pcnt,user,0,pcnt-1,0))
 187                         return;
 188                 del_channel(user,parameters[0],NULL,false);
 189         }
 190 }
 191
 192 void handle_kick(char **parameters, int pcnt, userrec *user)
 193 {
 194         chanrec* Ptr = FindChan(parameters[0]);
 195         userrec* u   = Find(parameters[1]);
 196
 197         if ((!u) || (!Ptr))
 198         {
 199                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
 200                 return;
 201         }
 202
 203         if (!has_channel(u,Ptr))
 204         {
 205                 WriteServ(user->fd,"442 %s %s :You're not on that channel!",user->nick, parameters[0]);
 206                 return;
 207         }
 208
 209         char reason[MAXBUF];
 210
 211         if (pcnt > 2)
 212         {
 213                 strncpy(reason,parameters[2],MAXBUF);
 214                 if (strlen(reason)>MAXKICK)
 215                 {
 216                         reason[MAXKICK-1] = '\0';
 217                 }
 218
 219                 kick_channel(user,u,Ptr,reason);
 220         }
 221         else
 222         {
 223                 strcpy(reason,user->nick);
 224                 kick_channel(user,u,Ptr,reason);
 225         }
 226
 227         // this must be propogated so that channel membership is kept in step network-wide
 228
 229         char buffer[MAXBUF];
 230         snprintf(buffer,MAXBUF,"k %s %s %s :%s",user->nick,u->nick,Ptr->name,reason);
 231         NetSendToAll(buffer);
 232 }
 233
 234
 235 void handle_die(char **parameters, int pcnt, userrec *user)
 236 {
 237         log(DEBUG,"die: %s",user->nick);
 238         if (!strcmp(parameters[0],diepass))
 239         {
 240                 WriteOpers("*** DIE command from %s!%s@%s, terminating...",user->nick,user->ident,user->host);
 241                 sleep(DieDelay);
 242                 Exit(ERROR);
 243         }
 244         else
 245         {
 246                 WriteOpers("*** Failed DIE Command from %s!%s@%s.",user->nick,user->ident,user->host);
 247         }
 248 }
 249
 250 void handle_restart(char **parameters, int pcnt, userrec *user)
 251 {
 252         log(DEBUG,"restart: %s",user->nick);
 253         if (!strcmp(parameters[0],restartpass))
 254         {
 255                 WriteOpers("*** RESTART command from %s!%s@%s, Pretending to restart till this is finished :D",user->nick,user->ident,user->host);
 256                 sleep(DieDelay);
 257                 Exit(ERROR);
 258                 /* Will finish this later when i can be arsed :) */
 259         }
 260         else
 261         {
 262                 WriteOpers("*** Failed RESTART Command from %s!%s@%s.",user->nick,user->ident,user->host);
 263         }
 264 }
 265
 266 void handle_kill(char **parameters, int pcnt, userrec *user)
 267 {
 268         userrec *u = Find(parameters[0]);
 269         char killreason[MAXBUF];
 270
 271         log(DEBUG,"kill: %s %s",parameters[0],parameters[1]);
 272         if (u)
 273         {
 274                 if (strcmp(ServerName,u->server))
 275                 {
 276                         // remote kill
 277                         WriteOpers("*** Remote kill by %s: %s!%s@%s (%s)",user->nick,u->nick,u->ident,u->host,parameters[1]);
 278                         sprintf(killreason,"[%s] Killed (%s (%s))",ServerName,user->nick,parameters[1]);
 279                         WriteCommonExcept(u,"QUIT :%s",killreason);
 280                         // K token must go to ALL servers!!!
 281                         char buffer[MAXBUF];
 282                         snprintf(buffer,MAXBUF,"K %s %s :%s",user->nick,u->nick,killreason);
 283                         NetSendToAll(buffer);
 284
 285                         user_hash::iterator iter = clientlist.find(u->nick);
 286                         if (iter != clientlist.end())
 287                         {
 288                                 log(DEBUG,"deleting user hash value %d",iter->second);
 289                                 if ((iter->second) && (user->registered == 7)) {
 290                                         delete iter->second;
 291                                         }
 292                         clientlist.erase(iter);
 293                         }
 294                         purge_empty_chans();
 295                 }
 296                 else
 297                 {
 298                         // local kill
 299                         WriteTo(user, u, "KILL %s :%s!%s!%s (%s)", u->nick, ServerName,user->dhost,user->nick,parameters[1]);
 300                         WriteOpers("*** Local Kill by %s: %s!%s@%s (%s)",user->nick,u->nick,u->ident,u->host,parameters[1]);
 301                         sprintf(killreason,"Killed (%s (%s))",user->nick,parameters[1]);
 302                         kill_link(u,killreason);
 303                 }
 304         }
 305         else
 306         {
 307                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
 308         }
 309 }
 310
 311 void handle_summon(char **parameters, int pcnt, userrec *user)
 312 {
 313         WriteServ(user->fd,"445 %s :SUMMON has been disabled (depreciated command)",user->nick);
 314 }
 315
 316 void handle_users(char **parameters, int pcnt, userrec *user)
 317 {
 318         WriteServ(user->fd,"445 %s :USERS has been disabled (depreciated command)",user->nick);
 319 }
 320
 321 void handle_pass(char **parameters, int pcnt, userrec *user)
 322 {
 323         // Check to make sure they havnt registered -- Fix by FCS
 324         if (user->registered == 7)
 325         {
 326                 WriteServ(user->fd,"462 %s :You may not reregister",user->nick);
 327                 return;
 328         }
 329         if (!strcasecmp(parameters[0],Passwd(user)))
 330         {
 331                 user->haspassed = true;
 332         }
 333 }
 334
 335 void handle_invite(char **parameters, int pcnt, userrec *user)
 336 {
 337         userrec* u = Find(parameters[0]);
 338         chanrec* c = FindChan(parameters[1]);
 339
 340         if ((!c) || (!u))
 341         {
 342                 if (!c)
 343                 {
 344                         WriteServ(user->fd,"401 %s %s :No such nick/channel",user->nick, parameters[1]);
 345                 }
 346                 else
 347                 {
 348                         if (c->inviteonly)
 349                         {
 350                                 WriteServ(user->fd,"401 %s %s :No such nick/channel",user->nick, parameters[0]);
 351                         }
 352                 }
 353
 354                 return;
 355         }
 356
 357         if (c->inviteonly)
 358         {
 359                 if (cstatus(user,c) < STATUS_HOP)
 360                 {
 361                         WriteServ(user->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel",user->nick, c->name);
 362                         return;
 363                 }
 364         }
 365         if (has_channel(u,c))
 366         {
 367                 WriteServ(user->fd,"443 %s %s %s :Is already on channel %s",user->nick,u->nick,c->name,c->name);
 368                 return;
 369         }
 370         if (!has_channel(user,c))
 371         {
 372                 WriteServ(user->fd,"442 %s %s :You're not on that channel!",user->nick, c->name);
 373                 return;
 374         }
 375         u->InviteTo(c->name);
 376         WriteFrom(u->fd,user,"INVITE %s :%s",u->nick,c->name);
 377         WriteServ(user->fd,"341 %s %s %s",user->nick,u->nick,c->name);
 378
 379         // i token must go to ALL servers!!!
 380         char buffer[MAXBUF];
 381         snprintf(buffer,MAXBUF,"i %s %s %s",u->nick,user->nick,c->name);
 382         NetSendToAll(buffer);
 383 }
 384
 385 void handle_topic(char **parameters, int pcnt, userrec *user)
 386 {
 387         chanrec* Ptr;
 388
 389         if (pcnt == 1)
 390         {
 391                 if (strlen(parameters[0]) <= CHANMAX)
 392                 {
 393                         Ptr = FindChan(parameters[0]);
 394                         if (Ptr)
 395                         {
 396                                 if (Ptr->topicset)
 397                                 {
 398                                         WriteServ(user->fd,"332 %s %s :%s", user->nick, Ptr->name, Ptr->topic);
 399                                         WriteServ(user->fd,"333 %s %s %s %d", user->nick, Ptr->name, Ptr->setby, Ptr->topicset);
 400                                 }
 401                                 else
 402                                 {
 403                                         WriteServ(user->fd,"331 %s %s :No topic is set.", user->nick, Ptr->name);
 404                                 }
 405                         }
 406                         else
 407                         {
 408                                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
 409                         }
 410                 }
 411                 return;
 412         }
 413         else if (pcnt>1)
 414         {
 415                 if (strlen(parameters[0]) <= CHANMAX)
 416                 {
 417                         Ptr = FindChan(parameters[0]);
 418                         if (Ptr)
 419                         {
 420                                 if ((Ptr->topiclock) && (cstatus(user,Ptr)<STATUS_HOP))
 421                                 {
 422                                         WriteServ(user->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel", user->nick, Ptr->name);
 423                                         return;
 424                                 }
 425
 426                                 char topic[MAXBUF];
 427                                 strncpy(topic,parameters[1],MAXBUF);
 428                                 if (strlen(topic)>MAXTOPIC)
 429                                 {
 430                                         topic[MAXTOPIC-1] = '\0';
 431                                 }
 432
 433                                 strcpy(Ptr->topic,topic);
 434                                 strcpy(Ptr->setby,user->nick);
 435                                 Ptr->topicset = time(NULL);
 436                                 WriteChannel(Ptr,user,"TOPIC %s :%s",Ptr->name, Ptr->topic);
 437
 438                                 // t token must go to ALL servers!!!
 439                                 char buffer[MAXBUF];
 440                                 snprintf(buffer,MAXBUF,"t %s %s :%s",user->nick,Ptr->name,topic);
 441                                 NetSendToAll(buffer);
 442                         }
 443                         else
 444                         {
 445                                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
 446                         }
 447                 }
 448         }
 449 }
 450
 451 void handle_names(char **parameters, int pcnt, userrec *user)
 452 {
 453         chanrec* c;
 454
 455         if (loop_call(handle_names,parameters,pcnt,user,0,pcnt-1,0))
 456                 return;
 457         c = FindChan(parameters[0]);
 458         if (c)
 459         {
 460                 /*WriteServ(user->fd,"353 %s = %s :%s", user->nick, c->name,*/
 461                 userlist(user,c);
 462                 WriteServ(user->fd,"366 %s %s :End of /NAMES list.", user->nick, c->name);
 463         }
 464         else
 465         {
 466                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
 467         }
 468 }
 469
 470 void handle_privmsg(char **parameters, int pcnt, userrec *user)
 471 {
 472         userrec *dest;
 473         chanrec *chan;
 474
 475         user->idle_lastmsg = time(NULL);
 476
 477         if (loop_call(handle_privmsg,parameters,pcnt,user,0,pcnt-2,0))
 478                 return;
 479         if (parameters[0][0] == '#')
 480         {
 481                 chan = FindChan(parameters[0]);
 482                 if (chan)
 483                 {
 484                         if ((chan->noexternal) && (!has_channel(user,chan)))
 485                         {
 486                                 WriteServ(user->fd,"404 %s %s :Cannot send to channel (no external messages)", user->nick, chan->name);
 487                                 return;
 488                         }
 489                         if ((chan->moderated) && (cstatus(user,chan)<STATUS_VOICE))
 490                         {
 491                                 WriteServ(user->fd,"404 %s %s :Cannot send to channel (+m)", user->nick, chan->name);
 492                                 return;
 493                         }
 494
 495                         int MOD_RESULT = 0;
 496
 497                         FOREACH_RESULT(OnUserPreMessage(user,chan,TYPE_CHANNEL,std::string(parameters[1])));
 498                         if (MOD_RESULT) {
 499                                 return;
 500                         }
 501
 502                         ChanExceptSender(chan, user, "PRIVMSG %s :%s", chan->name, parameters[1]);
 503
 504                         // if any users of this channel are on remote servers, broadcast the packet
 505                         char buffer[MAXBUF];
 506                         snprintf(buffer,MAXBUF,"P %s %s :%s",user->nick,chan->name,parameters[1]);
 507                         NetSendToCommon(user,buffer);
 508                 }
 509                 else
 510                 {
 511                         /* no such nick/channel */
 512                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
 513                 }
 514                 return;
 515         }
 516
 517         dest = Find(parameters[0]);
 518         if (dest)
 519         {
 520                 if (strcmp(dest->awaymsg,""))
 521                 {
 522                         /* auto respond with aweh msg */
 523                         WriteServ(user->fd,"301 %s %s :%s",user->nick,dest->nick,dest->awaymsg);
 524                 }
 525
 526                 int MOD_RESULT = 0;
 527
 528                 FOREACH_RESULT(OnUserPreMessage(user,dest,TYPE_USER,std::string(parameters[1])));
 529                 if (MOD_RESULT) {
 530                         return;
 531                 }
 532
 533
 534
 535                 if (!strcmp(dest->server,user->server))
 536                 {
 537                         // direct write, same server
 538                         WriteTo(user, dest, "PRIVMSG %s :%s", dest->nick, parameters[1]);
 539                 }
 540                 else
 541                 {
 542                         char buffer[MAXBUF];
 543                         snprintf(buffer,MAXBUF,"P %s %s :%s",user->nick,dest->nick,parameters[1]);
 544                         NetSendToOne(dest->server,buffer);
 545                 }
 546         }
 547         else
 548         {
 549                 /* no such nick/channel */
 550                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
 551         }
 552 }
 553
 554 void handle_notice(char **parameters, int pcnt, userrec *user)
 555 {
 556         userrec *dest;
 557         chanrec *chan;
 558
 559         user->idle_lastmsg = time(NULL);
 560
 561         if (loop_call(handle_notice,parameters,pcnt,user,0,pcnt-2,0))
 562                 return;
 563         if (parameters[0][0] == '#')
 564         {
 565                 chan = FindChan(parameters[0]);
 566                 if (chan)
 567                 {
 568                         if ((chan->noexternal) && (!has_channel(user,chan)))
 569                         {
 570                                 WriteServ(user->fd,"404 %s %s :Cannot send to channel (no external messages)", user->nick, chan->name);
 571                                 return;
 572                         }
 573                         if ((chan->moderated) && (cstatus(user,chan)<STATUS_VOICE))
 574                         {
 575                                 WriteServ(user->fd,"404 %s %s :Cannot send to channel (+m)", user->nick, chan->name);
 576                                 return;
 577                         }
 578
 579                         int MOD_RESULT = 0;
 580
 581                         FOREACH_RESULT(OnUserPreNotice(user,chan,TYPE_CHANNEL,std::string(parameters[1])));
 582                         if (MOD_RESULT) {
 583                                 return;
 584                         }
 585
 586                         ChanExceptSender(chan, user, "NOTICE %s :%s", chan->name, parameters[1]);
 587
 588                         // if any users of this channel are on remote servers, broadcast the packet
 589                         char buffer[MAXBUF];
 590                         snprintf(buffer,MAXBUF,"V %s %s :%s",user->nick,chan->name,parameters[1]);
 591                         NetSendToCommon(user,buffer);
 592                 }
 593                 else
 594                 {
 595                         /* no such nick/channel */
 596                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
 597                 }
 598                 return;
 599         }
 600
 601         dest = Find(parameters[0]);
 602         if (dest)
 603         {
 604                 int MOD_RESULT = 0;
 605
 606                 FOREACH_RESULT(OnUserPreNotice(user,dest,TYPE_USER,std::string(parameters[1])));
 607                 if (MOD_RESULT) {
 608                         return;
 609                 }
 610
 611                 if (!strcmp(dest->server,user->server))
 612                 {
 613                         // direct write, same server
 614                         WriteTo(user, dest, "NOTICE %s :%s", dest->nick, parameters[1]);
 615                 }
 616                 else
 617                 {
 618                         char buffer[MAXBUF];
 619                         snprintf(buffer,MAXBUF,"V %s %s :%s",user->nick,dest->nick,parameters[1]);
 620                         NetSendToOne(dest->server,buffer);
 621                 }
 622         }
 623         else
 624         {
 625                 /* no such nick/channel */
 626                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
 627         }
 628 }
 629
 630
 631 void handle_info(char **parameters, int pcnt, userrec *user)
 632 {
 633         WriteServ(user->fd,"371 %s :The Inspire IRCd Project Has been brought to you by the following people..",user->nick);
 634         WriteServ(user->fd,"371 %s :Craig Edwards, Craig McLure, and Others..",user->nick);
 635         WriteServ(user->fd,"371 %s :Will finish this later when i can be arsed :p",user->nick);
 636         FOREACH_MOD OnInfo(user);
 637         WriteServ(user->fd,"374 %s :End of /INFO list",user->nick);
 638 }
 639
 640 void handle_time(char **parameters, int pcnt, userrec *user)
 641 {
 642         time_t rawtime;
 643         struct tm * timeinfo;
 644
 645         time ( &rawtime );
 646         timeinfo = localtime ( &rawtime );
 647         WriteServ(user->fd,"391 %s %s :%s",user->nick,ServerName, asctime (timeinfo) );
 648
 649 }
 650
 651 void handle_whois(char **parameters, int pcnt, userrec *user)
 652 {
 653         userrec *dest;
 654         char *t;
 655
 656         if (loop_call(handle_whois,parameters,pcnt,user,0,pcnt-1,0))
 657                 return;
 658         dest = Find(parameters[0]);
 659         if (dest)
 660         {
 661                 // bug found by phidjit - were able to whois an incomplete connection if it had sent a NICK or USER
 662                 if (dest->registered == 7)
 663                 {
 664                         WriteServ(user->fd,"311 %s %s %s %s * :%s",user->nick, dest->nick, dest->ident, dest->dhost, dest->fullname);
 665                         if ((user == dest) || (strchr(user->modes,'o')))
 666                         {
 667                                 WriteServ(user->fd,"378 %s %s :is connecting from *@%s",user->nick, dest->nick, dest->host);
 668                         }
 669                         if (strcmp(chlist(dest),""))
 670                         {
 671                                 WriteServ(user->fd,"319 %s %s :%s",user->nick, dest->nick, chlist(dest));
 672                         }
 673                         WriteServ(user->fd,"312 %s %s %s :%s",user->nick, dest->nick, dest->server, GetServerDescription(dest->server).c_str());
 674                         if (strcmp(dest->awaymsg,""))
 675                         {
 676                                 WriteServ(user->fd,"301 %s %s :%s",user->nick, dest->nick, dest->awaymsg);
 677                         }
 678                         if (strchr(dest->modes,'o'))
 679                         {
 680                                 WriteServ(user->fd,"313 %s %s :is an IRC operator",user->nick, dest->nick);
 681                         }
 682                         FOREACH_MOD OnWhois(user,dest);
 683                         if (!strcasecmp(user->server,dest->server))
 684                         {
 685                                 // idle time and signon line can only be sent if youre on the same server (according to RFC)
 686                                 WriteServ(user->fd,"317 %s %s %d %d :seconds idle, signon time",user->nick, dest->nick, abs((dest->idle_lastmsg)-time(NULL)), dest->signon);
 687                         }
 688
 689                         WriteServ(user->fd,"318 %s %s :End of /WHOIS list.",user->nick, dest->nick);
 690                 }
 691                 else
 692                 {
 693                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
 694                 }
 695         }
 696         else
 697         {
 698                 /* no such nick/channel */
 699                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
 700         }
 701 }
 702
 703 void handle_quit(char **parameters, int pcnt, userrec *user)
 704 {
 705         user_hash::iterator iter = clientlist.find(user->nick);
 706         char* reason;
 707
 708         if (user->registered == 7)
 709         {
 710                 /* theres more to do here, but for now just close the socket */
 711                 if (pcnt == 1)
 712                 {
 713                         if (parameters[0][0] == ':')
 714                         {
 715                                 *parameters[0]++;
 716                         }
 717                         reason = parameters[0];
 718
 719                         if (strlen(reason)>MAXQUIT)
 720                         {
 721                                 reason[MAXQUIT-1] = '\0';
 722                         }
 723
 724                         Write(user->fd,"ERROR :Closing link (%s@%s) [%s]",user->ident,user->host,parameters[0]);
 725                         WriteOpers("*** Client exiting: %s!%s@%s [%s]",user->nick,user->ident,user->host,parameters[0]);
 726                         WriteCommonExcept(user,"QUIT :%s%s",PrefixQuit,parameters[0]);
 727
 728                         char buffer[MAXBUF];
 729                         snprintf(buffer,MAXBUF,"Q %s :%s%s",user->nick,PrefixQuit,parameters[0]);
 730                         NetSendToAll(buffer);
 731                 }
 732                 else
 733                 {
 734                         Write(user->fd,"ERROR :Closing link (%s@%s) [QUIT]",user->ident,user->host);
 735                         WriteOpers("*** Client exiting: %s!%s@%s [Client exited]",user->nick,user->ident,user->host);
 736                         WriteCommonExcept(user,"QUIT :Client exited");
 737
 738                         char buffer[MAXBUF];
 739                         snprintf(buffer,MAXBUF,"Q %s :Client exited",user->nick);
 740                         NetSendToAll(buffer);
 741                 }
 742                 FOREACH_MOD OnUserQuit(user);
 743                 AddWhoWas(user);
 744         }
 745
 746         /* push the socket on a stack of sockets due to be closed at the next opportunity */
 747         fd_reap.push_back(user->fd);
 748
 749         if (iter != clientlist.end())
 750         {
 751                 clientlist.erase(iter);
 752                 log(DEBUG,"deleting user hash value %d",iter->second);
 753                 //if ((user) && (user->registered == 7)) {
 754                         //delete user;
 755                 //}
 756         }
 757
 758         if (user->registered == 7) {
 759                 purge_empty_chans();
 760         }
 761 }
 762
 763 void handle_who(char **parameters, int pcnt, userrec *user)
 764 {
 765         chanrec* Ptr = NULL;
 766
 767         /* theres more to do here, but for now just close the socket */
 768         if (pcnt == 1)
 769         {
 770                 if ((!strcmp(parameters[0],"0")) || (!strcmp(parameters[0],"*")))
 771                 {
 772                         if (user->chans[0].channel)
 773                         {
 774                                 Ptr = user->chans[0].channel;
 775                                 for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
 776                                 {
 777                                         if ((common_channels(user,i->second)) && (isnick(i->second->nick)))
 778                                         {
 779                                                 WriteServ(user->fd,"352 %s %s %s %s %s %s Hr@ :0 %s",user->nick, Ptr->name, i->second->ident, i->second->dhost, i->second->server, i->second->nick, i->second->fullname);
 780                                         }
 781                                 }
 782                         }
 783                         if (Ptr)
 784                         {
 785                                 WriteServ(user->fd,"315 %s %s :End of /WHO list.",user->nick, Ptr->name);
 786                         }
 787                         else
 788                         {
 789                                 WriteServ(user->fd,"315 %s %s :End of /WHO list.",user->nick, user->nick);
 790                         }
 791                         return;
 792                 }
 793                 if (parameters[0][0] == '#')
 794                 {
 795                         Ptr = FindChan(parameters[0]);
 796                         if (Ptr)
 797                         {
 798                                 for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
 799                                 {
 800                                         if ((has_channel(i->second,Ptr)) && (isnick(i->second->nick)))
 801                                         {
 802                                                 WriteServ(user->fd,"352 %s %s %s %s %s %s Hr@ :0 %s",user->nick, Ptr->name, i->second->ident, i->second->dhost, i->second->server, i->second->nick, i->second->fullname);
 803                                         }
 804                                 }
 805                                 WriteServ(user->fd,"315 %s %s :End of /WHO list.",user->nick, Ptr->name);
 806                         }
 807                         else
 808                         {
 809                                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
 810                         }
 811                 }
 812                 else
 813                 {
 814                         userrec* u = Find(parameters[0]);
 815                         if (u)
 816                         {
 817                                 WriteServ(user->fd,"352 %s %s %s %s %s %s Hr@ :0 %s",user->nick, u->nick, u->ident, u->dhost, u->server, u->nick, u->fullname);
 818                         }
 819                         WriteServ(user->fd,"315 %s %s :End of /WHO list.",user->nick, parameters[0]);
 820                 }
 821         }
 822         if (pcnt == 2)
 823         {
 824                 if ((!strcmp(parameters[0],"0")) || (!strcmp(parameters[0],"*")) && (!strcmp(parameters[1],"o")))
 825                 {
 826                         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
 827                         {
 828                                 if ((common_channels(user,i->second)) && (isnick(i->second->nick)))
 829                                 {
 830                                         if (strchr(i->second->modes,'o'))
 831                                         {
 832                                                 WriteServ(user->fd,"352 %s %s %s %s %s %s Hr@ :0 %s",user->nick, user->nick, i->second->ident, i->second->dhost, i->second->server, i->second->nick, i->second->fullname);
 833                                         }
 834                                 }
 835                         }
 836                         WriteServ(user->fd,"315 %s %s :End of /WHO list.",user->nick, user->nick);
 837                         return;
 838                 }
 839         }
 840 }
 841
 842 void handle_wallops(char **parameters, int pcnt, userrec *user)
 843 {
 844         WriteWallOps(user,false,"%s",parameters[0]);
 845 }
 846
 847 void handle_list(char **parameters, int pcnt, userrec *user)
 848 {
 849         chanrec* Ptr;
 850
 851         WriteServ(user->fd,"321 %s Channel :Users Name",user->nick);
 852         for (chan_hash::const_iterator i = chanlist.begin(); i != chanlist.end(); i++)
 853         {
 854                 if ((!i->second->c_private) && (!i->second->secret))
 855                 {
 856                         WriteServ(user->fd,"322 %s %s %d :[+%s] %s",user->nick,i->second->name,usercount_i(i->second),chanmodes(i->second),i->second->topic);
 857                 }
 858         }
 859         WriteServ(user->fd,"323 %s :End of channel list.",user->nick);
 860 }
 861
 862
 863 void handle_rehash(char **parameters, int pcnt, userrec *user)
 864 {
 865         WriteServ(user->fd,"382 %s %s :Rehashing",user->nick,CleanFilename(CONFIG_FILE));
 866         ReadConfig();
 867         FOREACH_MOD OnRehash();
 868         WriteOpers("%s is rehashing config file %s",user->nick,CleanFilename(CONFIG_FILE));
 869 }
 870
 871 void handle_lusers(char **parameters, int pcnt, userrec *user)
 872 {
 873         WriteServ(user->fd,"251 %s :There are %d users and %d invisible on %d servers",user->nick,usercnt()-usercount_invisible(),usercount_invisible(),servercount());
 874         WriteServ(user->fd,"252 %s %d :operator(s) online",user->nick,usercount_opers());
 875         WriteServ(user->fd,"253 %s %d :unknown connections",user->nick,usercount_unknown());
 876         WriteServ(user->fd,"254 %s %d :channels formed",user->nick,chancount());
 877         WriteServ(user->fd,"254 %s :I have %d clients and %d servers",user->nick,local_count(),count_servs());
 878 }
 879
 880 void handle_admin(char **parameters, int pcnt, userrec *user)
 881 {
 882         WriteServ(user->fd,"256 %s :Administrative info for %s",user->nick,ServerName);
 883         WriteServ(user->fd,"257 %s :Name     - %s",user->nick,AdminName);
 884         WriteServ(user->fd,"258 %s :Nickname - %s",user->nick,AdminNick);
 885         WriteServ(user->fd,"258 %s :E-Mail   - %s",user->nick,AdminEmail);
 886 }
 887
 888 void handle_ping(char **parameters, int pcnt, userrec *user)
 889 {
 890         WriteServ(user->fd,"PONG %s :%s",ServerName,parameters[0]);
 891 }
 892
 893 void handle_pong(char **parameters, int pcnt, userrec *user)
 894 {
 895         // set the user as alive so they survive to next ping
 896         user->lastping = 1;
 897 }
 898
 899 void handle_motd(char **parameters, int pcnt, userrec *user)
 900 {
 901         ShowMOTD(user);
 902 }
 903
 904 void handle_rules(char **parameters, int pcnt, userrec *user)
 905 {
 906         ShowRULES(user);
 907 }
 908
 909 void handle_user(char **parameters, int pcnt, userrec *user)
 910 {
 911         if (user->registered < 3)
 912         {
 913                 if (isident(parameters[0]) == 0) {
 914                         // This kinda Sucks, According to the RFC thou, its either this,
 915                         // or "You have already registered" :p -- Craig
 916                         WriteServ(user->fd,"461 %s USER :Not enough parameters",user->nick);
 917                 }
 918                 else {
 919                         WriteServ(user->fd,"NOTICE Auth :No ident response, ident prefixed with ~");
 920                         strcpy(user->ident,"~"); /* we arent checking ident... but these days why bother anyway? */
 921                         strncat(user->ident,parameters[0],IDENTMAX);
 922                         strncpy(user->fullname,parameters[3],128);
 923                         user->registered = (user->registered | 1);
 924                 }
 925         }
 926         else
 927         {
 928                 WriteServ(user->fd,"462 %s :You may not reregister",user->nick);
 929                 return;
 930         }
 931         /* parameters 2 and 3 are local and remote hosts, ignored when sent by client connection */
 932         if (user->registered == 3)
 933         {
 934                 /* user is registered now, bit 0 = USER command, bit 1 = sent a NICK command */
 935                 ConnectUser(user);
 936         }
 937 }
 938
 939 void handle_userhost(char **parameters, int pcnt, userrec *user)
 940 {
 941         char Return[MAXBUF],junk[MAXBUF];
 942         sprintf(Return,"302 %s :",user->nick);
 943         for (int i = 0; i < pcnt; i++)
 944         {
 945                 userrec *u = Find(parameters[i]);
 946                 if (u)
 947                 {
 948                         if (strchr(u->modes,'o'))
 949                         {
 950                                 sprintf(junk,"%s*=+%s@%s ",u->nick,u->ident,u->host);
 951                                 strcat(Return,junk);
 952                         }
 953                         else
 954                         {
 955                                 sprintf(junk,"%s=+%s@%s ",u->nick,u->ident,u->host);
 956                                 strcat(Return,junk);
 957                         }
 958                 }
 959         }
 960         WriteServ(user->fd,Return);
 961 }
 962
 963
 964 void handle_ison(char **parameters, int pcnt, userrec *user)
 965 {
 966         char Return[MAXBUF];
 967         sprintf(Return,"303 %s :",user->nick);
 968         for (int i = 0; i < pcnt; i++)
 969         {
 970                 userrec *u = Find(parameters[i]);
 971                 if (u)
 972                 {
 973                         strcat(Return,u->nick);
 974                         strcat(Return," ");
 975                 }
 976         }
 977         WriteServ(user->fd,Return);
 978 }
 979
 980
 981 void handle_away(char **parameters, int pcnt, userrec *user)
 982 {
 983         if (pcnt)
 984         {
 985                 strcpy(user->awaymsg,parameters[0]);
 986                 WriteServ(user->fd,"306 %s :You have been marked as being away",user->nick);
 987         }
 988         else
 989         {
 990                 strcpy(user->awaymsg,"");
 991                 WriteServ(user->fd,"305 %s :You are no longer marked as being away",user->nick);
 992         }
 993 }
 994
 995 void handle_whowas(char **parameters, int pcnt, userrec* user)
 996 {
 997         user_hash::iterator i = whowas.find(parameters[0]);
 998
 999         if (i == whowas.end())
1000         {
1001                 WriteServ(user->fd,"406 %s %s :There was no such nickname",user->nick,parameters[0]);
1002                 WriteServ(user->fd,"369 %s %s :End of WHOWAS",user->nick,parameters[0]);
1003         }
1004         else
1005         {
1006                 time_t rawtime = i->second->signon;
1007                 tm *timeinfo;
1008                 char b[MAXBUF];
1009
1010                 timeinfo = localtime(&rawtime);
1011                 strcpy(b,asctime(timeinfo));
1012                 b[strlen(b)-1] = '\0';
1013
1014                 WriteServ(user->fd,"314 %s %s %s %s * :%s",user->nick,i->second->nick,i->second->ident,i->second->dhost,i->second->fullname);
1015                 WriteServ(user->fd,"312 %s %s %s :%s",user->nick,i->second->nick,i->second->server,b);
1016                 WriteServ(user->fd,"369 %s %s :End of WHOWAS",user->nick,parameters[0]);
1017         }
1018
1019 }
1020
1021 void handle_trace(char **parameters, int pcnt, userrec *user)
1022 {
1023         for (user_hash::iterator i = clientlist.begin(); i != clientlist.end(); i++)
1024         {
1025                 if (i->second)
1026                 {
1027                         if (isnick(i->second->nick))
1028                         {
1029                                 if (strchr(i->second->modes,'o'))
1030                                 {
1031                                         WriteServ(user->fd,"205 %s :Oper 0 %s",user->nick,i->second->nick);
1032                                 }
1033                                 else
1034                                 {
1035                                         WriteServ(user->fd,"204 %s :User 0 %s",user->nick,i->second->nick);
1036                                 }
1037                         }
1038                         else
1039                         {
1040                                 WriteServ(user->fd,"203 %s :???? 0 [%s]",user->nick,i->second->host);
1041                         }
1042                 }
1043         }
1044 }
1045
1046 void handle_modules(char **parameters, int pcnt, userrec *user)
1047 {
1048         for (int i = 0; i < module_names.size(); i++)
1049         {
1050                         Version V = modules[i]->GetVersion();
1051                         char modulename[MAXBUF];
1052                         strncpy(modulename,module_names[i].c_str(),256);
1053                         WriteServ(user->fd,"900 %s :0x%08lx %d.%d.%d.%d %s",user->nick,modules[i],V.Major,V.Minor,V.Revision,V.Build,CleanFilename(modulename));
1054         }
1055 }
1056
1057 void handle_stats(char **parameters, int pcnt, userrec *user)
1058 {
1059         if (pcnt != 1)
1060         {
1061                 return;
1062         }
1063         if (strlen(parameters[0])>1)
1064         {
1065                 /* make the stats query 1 character long */
1066                 parameters[0][1] = '\0';
1067         }
1068
1069         /* stats m (list number of times each command has been used, plus bytecount) */
1070         if (!strcasecmp(parameters[0],"m"))
1071         {
1072                 for (int i = 0; i < cmdlist.size(); i++)
1073                 {
1074                         if (cmdlist[i].handler_function)
1075                         {
1076                                 if (cmdlist[i].use_count)
1077                                 {
1078                                         /* RPL_STATSCOMMANDS */
1079                                         WriteServ(user->fd,"212 %s %s %d %d",user->nick,cmdlist[i].command,cmdlist[i].use_count,cmdlist[i].total_bytes);
1080                                 }
1081                         }
1082                 }
1083
1084         }
1085
1086         /* stats z (debug and memory info) */
1087         if (!strcasecmp(parameters[0],"z"))
1088         {
1089                 WriteServ(user->fd,"249 %s :Users(HASH_MAP) %d (%d bytes, %d buckets)",user->nick,clientlist.size(),clientlist.size()*sizeof(userrec),clientlist.bucket_count());
1090                 WriteServ(user->fd,"249 %s :Channels(HASH_MAP) %d (%d bytes, %d buckets)",user->nick,chanlist.size(),chanlist.size()*sizeof(chanrec),chanlist.bucket_count());
1091                 WriteServ(user->fd,"249 %s :Commands(VECTOR) %d (%d bytes)",user->nick,cmdlist.size(),cmdlist.size()*sizeof(command_t));
1092                 WriteServ(user->fd,"249 %s :MOTD(VECTOR) %d, RULES(VECTOR) %d",user->nick,MOTD.size(),RULES.size());
1093                 WriteServ(user->fd,"249 %s :address_cache(HASH_MAP) %d (%d buckets)",user->nick,IP.size(),IP.bucket_count());
1094                 WriteServ(user->fd,"249 %s :Modules(VECTOR) %d (%d)",user->nick,modules.size(),modules.size()*sizeof(Module));
1095                 WriteServ(user->fd,"249 %s :ClassFactories(VECTOR) %d (%d)",user->nick,factory.size(),factory.size()*sizeof(ircd_module));
1096                 WriteServ(user->fd,"249 %s :Ports(STATIC_ARRAY) %d",user->nick,boundPortCount);
1097         }
1098
1099         /* stats o */
1100         if (!strcasecmp(parameters[0],"o"))
1101         {
1102                 for (int i = 0; i < ConfValueEnum("oper",&config_f); i++)
1103                 {
1104                         char LoginName[MAXBUF];
1105                         char HostName[MAXBUF];
1106                         char OperType[MAXBUF];
1107                         ConfValue("oper","name",i,LoginName,&config_f);
1108                         ConfValue("oper","host",i,HostName,&config_f);
1109                         ConfValue("oper","type",i,OperType,&config_f);
1110                         WriteServ(user->fd,"243 %s O %s * %s %s 0",user->nick,HostName,LoginName,OperType);
1111                 }
1112         }
1113
1114         /* stats l (show user I/O stats) */
1115         if (!strcasecmp(parameters[0],"l"))
1116         {
1117                 WriteServ(user->fd,"211 %s :server:port nick bytes_in cmds_in bytes_out cmds_out",user->nick);
1118                 for (user_hash::iterator i = clientlist.begin(); i != clientlist.end(); i++)
1119                 {
1120                         if (isnick(i->second->nick))
1121                         {
1122                                 WriteServ(user->fd,"211 %s :%s:%d %s %d %d %d %d",user->nick,ServerName,i->second->port,i->second->nick,i->second->bytes_in,i->second->cmds_in,i->second->bytes_out,i->second->cmds_out);
1123                         }
1124                         else
1125                         {
1126                                 WriteServ(user->fd,"211 %s :%s:%d (unknown@%d) %d %d %d %d",user->nick,ServerName,i->second->port,i->second->fd,i->second->bytes_in,i->second->cmds_in,i->second->bytes_out,i->second->cmds_out);
1127                         }
1128
1129                 }
1130         }
1131
1132         /* stats u (show server uptime) */
1133         if (!strcasecmp(parameters[0],"u"))
1134         {
1135                 time_t current_time = 0;
1136                 current_time = time(NULL);
1137                 time_t server_uptime = current_time - startup_time;
1138                 struct tm* stime;
1139                 stime = gmtime(&server_uptime);
1140                 /* i dont know who the hell would have an ircd running for over a year nonstop, but
1141                  * Craig suggested this, and it seemed a good idea so in it went */
1142                 if (stime->tm_year > 70)
1143                 {
1144                         WriteServ(user->fd,"242 %s :Server up %d years, %d days, %.2d:%.2d:%.2d",user->nick,(stime->tm_year-70),stime->tm_yday,stime->tm_hour,stime->tm_min,stime->tm_sec);
1145                 }
1146                 else
1147                 {
1148                         WriteServ(user->fd,"242 %s :Server up %d days, %.2d:%.2d:%.2d",user->nick,stime->tm_yday,stime->tm_hour,stime->tm_min,stime->tm_sec);
1149                 }
1150         }
1151
1152         WriteServ(user->fd,"219 %s %s :End of /STATS report",user->nick,parameters[0]);
1153         WriteOpers("*** Notice: Stats '%s' requested by %s (%s@%s)",parameters[0],user->nick,user->ident,user->host);
1154
1155 }
1156
1157 void handle_connect(char **parameters, int pcnt, userrec *user)
1158 {
1159         char Link_ServerName[1024];
1160         char Link_IPAddr[1024];
1161         char Link_Port[1024];
1162         char Link_Pass[1024];
1163         int LinkPort;
1164         bool found = false;
1165
1166         for (int i = 0; i < ConfValueEnum("link",&config_f); i++)
1167         {
1168                 if (!found)
1169                 {
1170                         ConfValue("link","name",i,Link_ServerName,&config_f);
1171                         ConfValue("link","ipaddr",i,Link_IPAddr,&config_f);
1172                         ConfValue("link","port",i,Link_Port,&config_f);
1173                         ConfValue("link","sendpass",i,Link_Pass,&config_f);
1174                         log(DEBUG,"(%d) Comparing against name='%s', ipaddr='%s', port='%s', recvpass='%s'",i,Link_ServerName,Link_IPAddr,Link_Port,Link_Pass);
1175                         LinkPort = atoi(Link_Port);
1176                         if (match(Link_ServerName,parameters[0])) {
1177                                 found = true;
1178                                 break;
1179                         }
1180                 }
1181         }
1182
1183         if (!found) {
1184                 WriteServ(user->fd,"NOTICE %s :*** Failed to connect to %s: No servers matching this pattern are configured for linking.",user->nick,parameters[0]);
1185                 return;
1186         }
1187
1188         // TODO: Perform a check here to stop a server being linked twice!
1189
1190         WriteServ(user->fd,"NOTICE %s :*** Connecting to %s (%s) port %s...",user->nick,Link_ServerName,Link_IPAddr,Link_Port);
1191
1192         if (me[defaultRoute])
1193         {
1194                 me[defaultRoute]->BeginLink(Link_IPAddr,LinkPort,Link_Pass,Link_ServerName,me[defaultRoute]->port);
1195                 return;
1196         }
1197         else
1198         {
1199                 WriteServ(user->fd,"NOTICE %s :No default route is defined for server connections on this server. You must define a server connection to be default route so that sockets can be bound to it.",user->nick);
1200         }
1201 }
1202
1203 void handle_squit(char **parameters, int pcnt, userrec *user)
1204 {
1205         // send out an squit across the mesh and then clear the server list (for local squit)
1206         if (!pcnt)
1207         {
1208                 WriteOpers("SQUIT command issued by %s",user->nick);
1209                 char buffer[MAXBUF];
1210                 snprintf(buffer,MAXBUF,"& %s",ServerName);
1211                 NetSendToAll(buffer);
1212                 DoSplitEveryone();
1213         }
1214         else
1215         {
1216                 WriteServ(user->fd,"NOTICE :*** Remote SQUIT not supported yet.");
1217         }
1218 }
1219
1220 void handle_links(char **parameters, int pcnt, userrec *user)
1221 {
1222         WriteServ(user->fd,"364 %s %s %s :0 %s",user->nick,ServerName,ServerName,ServerDesc);
1223         for (int j = 0; j < 32; j++)
1224         {
1225                 if (me[j] != NULL)
1226                 {
1227                         for (int k = 0; k < me[j]->connectors.size(); k++)
1228                         {
1229                                 WriteServ(user->fd,"364 %s %s %s :1 %s",user->nick,me[j]->connectors[k].GetServerName().c_str(),ServerName,me[j]->connectors[k].GetDescription().c_str());
1230                         }
1231                 }
1232         }
1233         WriteServ(user->fd,"365 %s * :End of /LINKS list.",user->nick);
1234 }
1235
1236 void handle_map(char **parameters, int pcnt, userrec *user)
1237 {
1238         char line[MAXBUF];
1239         snprintf(line,MAXBUF,"006 %s :%s",user->nick,ServerName);
1240         while (strlen(line) < 50)
1241                 strcat(line," ");
1242         WriteServ(user->fd,"%s%d (%.2f%%)",line,local_count(),(float)(((float)local_count()/(float)usercnt())*100));
1243         for (int j = 0; j < 32; j++)
1244         {
1245                 if (me[j] != NULL)
1246                 {
1247                         for (int k = 0; k < me[j]->connectors.size(); k++)
1248                         {
1249                                 snprintf(line,MAXBUF,"006 %s :%c-%s",user->nick,islast(me[j]->connectors[k].GetServerName().c_str()),me[j]->connectors[k].GetServerName().c_str());
1250                                 while (strlen(line) < 50)
1251                                         strcat(line," ");
1252                                 WriteServ(user->fd,"%s%d (%.2f%%)",line,map_count(me[j]->connectors[k].GetServerName().c_str()),(float)(((float)map_count(me[j]->connectors[k].GetServerName().c_str())/(float)usercnt())*100));
1253                         }
1254                 }
1255         }
1256         WriteServ(user->fd,"007 %s :End of /MAP",user->nick);
1257 }
1258
1259
1260 void handle_oper(char **parameters, int pcnt, userrec *user)
1261 {
1262         char LoginName[MAXBUF];
1263         char Password[MAXBUF];
1264         char OperType[MAXBUF];
1265         char TypeName[MAXBUF];
1266         char Hostname[MAXBUF];
1267         int i,j;
1268
1269         for (int i = 0; i < ConfValueEnum("oper",&config_f); i++)
1270         {
1271                 ConfValue("oper","name",i,LoginName,&config_f);
1272                 ConfValue("oper","password",i,Password,&config_f);
1273                 if ((!strcmp(LoginName,parameters[0])) && (!strcmp(Password,parameters[1])))
1274                 {
1275                         /* correct oper credentials */
1276                         ConfValue("oper","type",i,OperType,&config_f);
1277                         WriteOpers("*** %s (%s@%s) is now an IRC operator of type %s",user->nick,user->ident,user->host,OperType);
1278                         WriteServ(user->fd,"381 %s :You are now an IRC operator of type %s",user->nick,OperType);
1279                         WriteServ(user->fd,"MODE %s :+o",user->nick);
1280                         for (j =0; j < ConfValueEnum("type",&config_f); j++)
1281                         {
1282                                 ConfValue("type","name",j,TypeName,&config_f);
1283                                 if (!strcmp(TypeName,OperType))
1284                                 {
1285                                         /* found this oper's opertype */
1286                                         ConfValue("type","host",j,Hostname,&config_f);
1287                                         ChangeDisplayedHost(user,Hostname);
1288                                 }
1289                         }
1290                         if (!strchr(user->modes,'o'))
1291                         {
1292                                 strcat(user->modes,"o");
1293                         }
1294                         FOREACH_MOD OnOper(user);
1295                         return;
1296                 }
1297         }
1298         /* no such oper */
1299         WriteServ(user->fd,"491 %s :Invalid oper credentials",user->nick);
1300         WriteOpers("*** WARNING! Failed oper attempt by %s!%s@%s!",user->nick,user->ident,user->host);
1301 }
1302
1303 void handle_nick(char **parameters, int pcnt, userrec *user)
1304 {
1305         if (pcnt < 1)
1306         {
1307                 log(DEBUG,"not enough params for handle_nick");
1308                 return;
1309         }
1310         if (!parameters[0])
1311         {
1312                 log(DEBUG,"invalid parameter passed to handle_nick");
1313                 return;
1314         }
1315         if (!strlen(parameters[0]))
1316         {
1317                 log(DEBUG,"zero length new nick passed to handle_nick");
1318                 return;
1319         }
1320         if (!user)
1321         {
1322                 log(DEBUG,"invalid user passed to handle_nick");
1323                 return;
1324         }
1325         if (!user->nick)
1326         {
1327                 log(DEBUG,"invalid old nick passed to handle_nick");
1328                 return;
1329         }
1330         if (!strcasecmp(user->nick,parameters[0]))
1331         {
1332                 log(DEBUG,"old nick is new nick, skipping");
1333                 return;
1334         }
1335         else
1336         {
1337                 if (strlen(parameters[0]) > 1)
1338                 {
1339                         if (parameters[0][0] == ':')
1340                         {
1341                                 *parameters[0]++;
1342                         }
1343                 }
1344                 if ((Find(parameters[0])) && (Find(parameters[0]) != user))
1345                 {
1346                         WriteServ(user->fd,"433 %s %s :Nickname is already in use.",user->nick,parameters[0]);
1347                         return;
1348                 }
1349         }
1350         if (isnick(parameters[0]) == 0)
1351         {
1352                 WriteServ(user->fd,"432 %s %s :Erroneous Nickname",user->nick,parameters[0]);
1353                 return;
1354         }
1355
1356         if (user->registered == 7)
1357         {
1358                 WriteCommon(user,"NICK %s",parameters[0]);
1359
1360                 // Q token must go to ALL servers!!!
1361                 char buffer[MAXBUF];
1362                 snprintf(buffer,MAXBUF,"n %s %s",user->nick,parameters[0]);
1363                 NetSendToAll(buffer);
1364
1365         }
1366
1367         /* change the nick of the user in the users_hash */
1368         user = ReHashNick(user->nick, parameters[0]);
1369         /* actually change the nick within the record */
1370         if (!user) return;
1371         if (!user->nick) return;
1372
1373         strncpy(user->nick, parameters[0],NICKMAX);
1374
1375         log(DEBUG,"new nick set: %s",user->nick);
1376
1377         if (user->registered < 3)
1378                 user->registered = (user->registered | 2);
1379         if (user->registered == 3)
1380         {
1381                 /* user is registered now, bit 0 = USER command, bit 1 = sent a NICK command */
1382                 ConnectUser(user);
1383         }
1384         log(DEBUG,"exit nickchange: %s",user->nick);
1385 }
1386
1387
1388
1389 void handle_V(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
1390 {
1391         char* src = strtok(params," ");
1392         char* dest = strtok(NULL," :");
1393         char* text = strtok(NULL,"\r\n");
1394         text++;
1395
1396         userrec* user = Find(src);
1397         if (user)
1398         {
1399                 userrec* dst = Find(dest);
1400
1401                 if (dst)
1402                 {
1403                         WriteTo(user, dst, "NOTICE %s :%s", dst->nick, text);
1404                 }
1405                 else
1406                 {
1407                         chanrec* d = FindChan(dest);
1408                         if (d)
1409                         {
1410                                 ChanExceptSender(d, user, "NOTICE %s :%s", d->name, text);
1411                         }
1412                 }
1413         }
1414
1415 }
1416
1417
1418 void handle_P(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
1419 {
1420         char* src = strtok(params," ");
1421         char* dest = strtok(NULL," :");
1422         char* text = strtok(NULL,"\r\n");
1423         text++;
1424
1425         userrec* user = Find(src);
1426         if (user)
1427         {
1428                 userrec* dst = Find(dest);
1429
1430                 if (dst)
1431                 {
1432                         WriteTo(user, dst, "PRIVMSG %s :%s", dst->nick, text);
1433                 }
1434                 else
1435                 {
1436                         chanrec* d = FindChan(dest);
1437                         if (d)
1438                         {
1439                                 ChanExceptSender(d, user, "PRIVMSG %s :%s", d->name, text);
1440                         }
1441                 }
1442         }
1443
1444 }
1445
1446 void handle_i(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
1447 {
1448         char* nick = strtok(params," ");
1449         char* from = strtok(NULL," ");
1450         char* channel = strtok(NULL," ");
1451         userrec* u = Find(nick);
1452         userrec* user = Find(from);
1453         chanrec* c = FindChan(channel);
1454         if ((c) && (u) && (user))
1455         {
1456                 u->InviteTo(c->name);
1457                 WriteFrom(u->fd,user,"INVITE %s :%s",u->nick,c->name);
1458         }
1459 }
1460
1461 void handle_t(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
1462 {
1463         char* setby = strtok(params," ");
1464         char* channel = strtok(NULL," :");
1465         char* topic = strtok(NULL,"\r\n");
1466         topic++;
1467         userrec* u = Find(setby);
1468         chanrec* c = FindChan(channel);
1469         if ((c) && (u))
1470         {
1471                 WriteChannelLocal(c,u,"TOPIC %s :%s",c->name,topic);
1472                 strncpy(c->topic,topic,MAXTOPIC);
1473                 strncpy(c->setby,u->nick,NICKMAX);
1474         }
1475 }
1476
1477
1478 void handle_T(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
1479 {
1480         char* tm = strtok(params," ");
1481         char* setby = strtok(NULL," ");
1482         char* channel = strtok(NULL," :");
1483         char* topic = strtok(NULL,"\r\n");
1484         topic++;
1485         time_t TS = atoi(tm);
1486         chanrec* c = FindChan(channel);
1487         if (c)
1488         {
1489                 // in the case of topics and TS, the *NEWER*
1490                 if (TS <= c->topicset)
1491                 {
1492                         WriteChannelLocal(c,NULL,"TOPIC %s :%s",c->name,topic);
1493                         strncpy(c->topic,topic,MAXTOPIC);
1494                         strncpy(c->setby,setby,NICKMAX);
1495                 }
1496         }
1497 }
1498
1499 void handle_M(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
1500 {
1501         char* pars[128];
1502         char original[MAXBUF],target[MAXBUF];
1503         strncpy(original,params,MAXBUF);
1504         int index = 0;
1505         char* parameter = strtok(params," ");
1506         strncpy(target,parameter,MAXBUF);
1507         while (parameter)
1508         {
1509                 pars[index++] = parameter;
1510                 parameter = strtok(NULL," ");
1511         }
1512         merge_mode(pars,index);
1513         if (FindChan(target))
1514         {
1515                 WriteChannelLocal(FindChan(target), NULL, "MODE %s",original);
1516         }
1517         if (Find(target))
1518         {
1519                 WriteTo(NULL,Find(target),"MODE %s",original);
1520         }
1521 }
1522
1523 // m is modes set by users only (not servers) valid targets are channels or users.
1524
1525 void handle_m(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
1526 {
1527         // m blah #chatspike +b *!test@*4
1528         char* pars[128];
1529         char original[MAXBUF];
1530         strncpy(original,params,MAXBUF);
1531
1532         if (!strchr(params,' '))
1533         {
1534                 WriteOpers("WARNING! 'm' token in data stream without any parameters! Something fishy is going on!");
1535                 return;
1536         }
1537
1538         int index = 0;
1539
1540         char* src = strtok(params," ");
1541         userrec* user = Find(src);
1542
1543         if (user)
1544         {
1545                 log(DEBUG,"Found user: %s",user->nick);
1546                 char* parameter = strtok(NULL," ");
1547                 while (parameter)
1548                 {
1549                         pars[index++] = parameter;
1550                         parameter = strtok(NULL," ");
1551                 }
1552
1553                 log(DEBUG,"Calling merge_mode2");
1554                 merge_mode2(pars,index,user);
1555         }
1556 }
1557
1558
1559 void handle_L(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
1560 {
1561         char* nick = strtok(params," ");
1562         char* channel = strtok(NULL," :");
1563         char* reason = strtok(NULL,"\r\n");
1564         userrec* user = Find(nick);
1565         reason++;
1566         if (user)
1567         {
1568                 if (strcmp(reason,""))
1569                 {
1570                         del_channel(user,channel,reason,true);
1571                 }
1572                 else
1573                 {
1574                         del_channel(user,channel,NULL,true);
1575                 }
1576         }
1577 }
1578
1579 void handle_K(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
1580 {
1581         char* src = strtok(params," ");
1582         char* nick = strtok(NULL," :");
1583         char* reason = strtok(NULL,"\r\n");
1584         char kreason[MAXBUF];
1585         reason++;
1586
1587         userrec* u = Find(nick);
1588         userrec* user = Find(src);
1589
1590         if ((user) && (u))
1591         {
1592                 WriteTo(user, u, "KILL %s :%s!%s!%s!%s (%s)", u->nick, source->name, ServerName, user->dhost,user->nick,reason);
1593                 WriteOpers("*** Remote kill from %s by %s: %s!%s@%s (%s)",source->name,user->nick,u->nick,u->ident,u->host,reason);
1594                 snprintf(kreason,MAXBUF,"[%s] Killed (%s (%s))",source->name,user->nick,reason);
1595                 kill_link(u,kreason);
1596         }
1597 }
1598
1599 void handle_Q(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
1600 {
1601         char* nick = strtok(params," :");
1602         char* reason = strtok(NULL,"\r\n");
1603         reason++;
1604
1605         userrec* user = Find(nick);
1606
1607         if (user)
1608         {
1609                 if (strlen(reason)>MAXQUIT)
1610                 {
1611                         reason[MAXQUIT-1] = '\0';
1612                 }
1613
1614
1615                 WriteCommonExcept(user,"QUIT :%s",reason);
1616
1617                 user_hash::iterator iter = clientlist.find(user->nick);
1618
1619                 if (iter != clientlist.end())
1620                 {
1621                         log(DEBUG,"deleting user hash value %d",iter->second);
1622                         if ((iter->second) && (user->registered == 7)) {
1623                                 delete iter->second;
1624                         }
1625                         clientlist.erase(iter);
1626                 }
1627
1628                 purge_empty_chans();
1629         }
1630 }
1631
1632 void handle_n(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
1633 {
1634         char* oldnick = strtok(params," ");
1635         char* newnick = strtok(NULL," ");
1636
1637         userrec* user = Find(oldnick);
1638
1639         if (user)
1640         {
1641                 WriteCommon(user,"NICK %s",newnick);
1642                 user = ReHashNick(user->nick, newnick);
1643                 if (!user) return;
1644                 if (!user->nick) return;
1645                 strncpy(user->nick, newnick,NICKMAX);
1646                 log(DEBUG,"new nick set: %s",user->nick);
1647         }
1648 }
1649
1650 // k <SOURCE> <DEST> <CHANNEL> :<REASON>
1651 void handle_k(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
1652 {
1653         char* src = strtok(params," ");
1654         char* dest = strtok(NULL," ");
1655         char* channel = strtok(NULL," :");
1656         char* reason = strtok(NULL,"\r\n");
1657         reason++;
1658         userrec* s = Find(src);
1659         userrec* d = Find(dest);
1660         chanrec* c = FindChan(channel);
1661         if ((s) && (d) && (c))
1662         {
1663                 kick_channel(s,d,c,reason);
1664         }
1665 }
1666
1667 void handle_AT(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
1668 {
1669         char* who = strtok(params," :");
1670         char* text = strtok(NULL,"\r\n");
1671         text++;
1672         userrec* s = Find(who);
1673         if (s)
1674         {
1675                 WriteWallOps(s,true,text);
1676         }
1677 }
1678
1679
1680 void handle_N(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
1681 {
1682         char* tm = strtok(params," ");
1683         char* nick = strtok(NULL," ");
1684         char* host = strtok(NULL," ");
1685         char* dhost = strtok(NULL," ");
1686         char* ident = strtok(NULL," ");
1687         char* modes = strtok(NULL," ");
1688         char* server = strtok(NULL," :");
1689         char* gecos = strtok(NULL,"\r\n");
1690         gecos++;
1691         modes++;
1692         time_t TS = atoi(tm);
1693         user_hash::iterator iter = clientlist.find(nick);
1694         if (iter != clientlist.end())
1695         {
1696                 // nick collision
1697                 WriteOpers("Nickname collision: %s@%s != %s@%s",nick,server,iter->second->nick,iter->second->server);
1698                 char str[MAXBUF];
1699                 snprintf(str,MAXBUF,"Killed (Nick Collision (%s@%s < %s@%s))",nick,server,iter->second->nick,iter->second->server);
1700                 WriteServ(iter->second->fd, "KILL %s :%s",iter->second->nick,str);
1701                 kill_link(iter->second,str);
1702         }
1703         clientlist[nick] = new userrec();
1704         // remote users have an fd of -1. This is so that our Write abstraction
1705         // routines know to route any messages to this record away to whatever server
1706         // theyre on.
1707         clientlist[nick]->fd = -1;
1708         strncpy(clientlist[nick]->nick, nick,NICKMAX);
1709         strncpy(clientlist[nick]->host, host,160);
1710         strncpy(clientlist[nick]->dhost, dhost,160);
1711         strncpy(clientlist[nick]->server, server,256);
1712         strncpy(clientlist[nick]->ident, ident,10); // +1 char to compensate for tilde
1713         strncpy(clientlist[nick]->fullname, gecos,128);
1714         clientlist[nick]->signon = TS;
1715         clientlist[nick]->nping = 0; // this is ignored for a remote user anyway.
1716         clientlist[nick]->lastping = 1;
1717         clientlist[nick]->port = 0; // so is this...
1718         clientlist[nick]->registered = 7; // this however we need to set for them to receive messages and appear online
1719         clientlist[nick]->idle_lastmsg = time(NULL); // this is unrealiable and wont actually be used locally
1720         for (int i = 0; i < MAXCHANS; i++)
1721         {
1722                 clientlist[nick]->chans[i].channel = NULL;
1723                 clientlist[nick]->chans[i].uc_modes = 0;
1724         }
1725 }
1726
1727 void handle_F(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
1728 {
1729         long tdiff = time(NULL) - atoi(params);
1730         if (tdiff)
1731                 WriteOpers("TS split for %s -> %s: %d",source->name,reply->name,tdiff);
1732 }
1733
1734 void handle_a(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
1735 {
1736         char* nick = strtok(params," :");
1737         char* gecos = strtok(NULL,"\r\n");
1738
1739         userrec* user = Find(nick);
1740
1741         if (user)
1742                 strncpy(user->fullname,gecos,MAXBUF);
1743 }
1744
1745 void handle_b(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
1746 {
1747         char* nick = strtok(params," ");
1748         char* host = strtok(NULL," ");
1749
1750         userrec* user = Find(nick);
1751
1752         if (user)
1753                 strncpy(user->dhost,host,160);
1754 }
1755
1756 void handle_plus(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
1757 {
1758         // %s %s %d %d
1759         // + test3.chatspike.net 7010 -2016508415
1760         char* servername = strtok(params," ");
1761         char* ipaddr = strtok(NULL," ");
1762         char* ipport = strtok(NULL," ");
1763         char* cookie = strtok(NULL," ");
1764         log(DEBUG,"*** Connecting back to %s:%d",ipaddr,atoi(ipport));
1765
1766
1767         bool conn_already = false;
1768         for (int i = 0; i < 32; i++)
1769         {
1770                 if (me[i] != NULL)
1771                 {
1772                         for (int j = 0; j < me[i]->connectors.size(); j++)
1773                         {
1774                                 if (!strcasecmp(me[i]->connectors[j].GetServerName().c_str(),servername))
1775                                 {
1776                                         if (me[i]->connectors[j].GetServerPort() == atoi(ipport))
1777                                         {
1778                                                 log(DEBUG,"Already got a connection to %s:%d, ignoring +",ipaddr,atoi(ipport));
1779                                                 conn_already = true;
1780                                         }
1781                                 }
1782                         }
1783                 }
1784         }
1785         if (!conn_already)
1786                 me[defaultRoute]->MeshCookie(ipaddr,atoi(ipport),atoi(cookie),servername);
1787 }
1788
1789 void handle_R(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
1790 {
1791         char* server = strtok(params," ");
1792         char* data = strtok(NULL,"\r\n");
1793         log(DEBUG,"Forwarded packet '%s' to '%s'",data,server);
1794         NetSendToOne(server,data);
1795 }
1796
1797 void handle_J(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
1798 {
1799         // IMPORTANT NOTE
1800         // The J token currently has no timestamp - this needs looking at
1801         // because it will allow splitriding.
1802         char* nick = strtok(params," ");
1803         char* channel = strtok(NULL," ");
1804         userrec* user = Find(nick);
1805         while (channel)
1806         {
1807                 if ((user != NULL) && (strcmp(channel,"")))
1808                 {
1809                         char privilage = '\0';
1810                         if (channel[0] != '#')
1811                         {
1812                                 privilage = channel[0];
1813                                 channel++;
1814                         }
1815                         add_channel(user,channel,"",true);
1816
1817                         // now work out the privilages they should have on each channel
1818                         // and send the appropriate servermodes.
1819                         for (int i = 0; i != MAXCHANS; i++)
1820                         {
1821                                 if (user->chans[i].channel)
1822                                 {
1823                                         if (!strcasecmp(user->chans[i].channel->name,channel))
1824                                         {
1825                                                 if (privilage == '@')
1826                                                 {
1827                                                         user->chans[i].uc_modes = user->chans[i].uc_modes | UCMODE_OP;
1828                                                         WriteChannelLocal(user->chans[i].channel, NULL, "MODE %s +o %s",channel,user->nick);
1829                                                 }
1830                                                 if (privilage == '%')
1831                                                 {
1832                                                         user->chans[i].uc_modes = user->chans[i].uc_modes | UCMODE_HOP;
1833                                                         WriteChannelLocal(user->chans[i].channel, NULL, "MODE %s +h %s",channel,user->nick);
1834                                                 }
1835                                                 if (privilage == '+')
1836                                                 {
1837                                                         user->chans[i].uc_modes = user->chans[i].uc_modes | UCMODE_VOICE;
1838                                                         WriteChannelLocal(user->chans[i].channel, NULL, "MODE %s +v %s",channel,user->nick);
1839                                                 }
1840                                         }
1841                                 }
1842                         }
1843
1844                 }
1845                 channel = strtok(NULL," ");
1846         }
1847 }
1848
1849 void handle_dollar(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
1850 {
1851         log(DEBUG,"Storing routing table...");
1852         char* sourceserver = strtok(params," ");
1853         char* server = strtok(NULL," ");
1854         for (int i = 0; i < 32; i++)
1855         {
1856                 if (me[i] != NULL)
1857                 {
1858                         for (int j = 0; j < me[i]->connectors.size(); j++)
1859                         {
1860                                 if (!strcasecmp(me[i]->connectors[j].GetServerName().c_str(),sourceserver))
1861                                 {
1862                                         me[i]->connectors[j].routes.clear();
1863                                         log(DEBUG,"Found entry for source server.");
1864                                         while (server)
1865                                         {
1866                                                 // store each route
1867                                                 me[i]->connectors[j].routes.push_back(server);
1868                                                 log(DEBUG,"*** Stored route: %s -> %s -> %s",ServerName,sourceserver,server);
1869                                                 server = strtok(NULL," ");
1870                                         }
1871                                         return;
1872                                 }
1873                         }
1874                 }
1875         }
1876         log(DEBUG,"Warning! routing table received from nonexistent server!");
1877 }
1878
1879 void handle_amp(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
1880 {
1881         log(DEBUG,"Netsplit! %s split from mesh, removing!",params);
1882         bool go_again = true;
1883         while (go_again)
1884         {
1885                 go_again = false;
1886                 for (int i = 0; i < 32; i++)
1887                 {
1888                         if (me[i] != NULL)
1889                         {
1890                                 for (vector<ircd_connector>::iterator j = me[i]->connectors.begin(); j != me[i]->connectors.end(); j++)
1891                                 {
1892                                         if (!strcasecmp(j->GetServerName().c_str(),params))
1893                                         {
1894                                                 j->routes.clear();
1895                                                 j->CloseConnection();
1896                                                 me[i]->connectors.erase(j);
1897                                                 go_again = true;
1898                                                 break;
1899                                         }
1900                                 }
1901                         }
1902                 }
1903         }
1904         log(DEBUG,"Removed server. Will remove clients...");
1905         // iterate through the userlist and remove all users on this server.
1906         // because we're dealing with a mesh, we dont have to deal with anything
1907         // "down-route" from this server (nice huh)
1908         go_again = true;
1909         char reason[MAXBUF];
1910         snprintf(reason,MAXBUF,"%s %s",ServerName,params);
1911         while (go_again)
1912         {
1913                 go_again = false;
1914                 for (user_hash::const_iterator u = clientlist.begin(); u != clientlist.end(); u++)
1915                 {
1916                         if (!strcasecmp(u->second->server,params))
1917                         {
1918                                 kill_link(u->second,reason);
1919                                 go_again = true;
1920                                 break;
1921                         }
1922                 }
1923         }
1924 }
1925
1926 long authcookie;
1927
1928
1929 void process_restricted_commands(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host,char* ipaddr,int port)
1930 {
1931         char buffer[MAXBUF];
1932
1933         switch(token)
1934         {
1935                 // Y <TS>
1936                 // start netburst
1937                 case 'Y':
1938                         nb_start = time(NULL);
1939                         WriteOpers("Server %s is starting netburst.",tcp_host);
1940                         // now broadcast this new servers address out to all servers that are linked to us,
1941                         // except the newcomer. They'll all attempt to connect back to it.
1942                         authcookie = rand()*rand();
1943                         snprintf(buffer,MAXBUF,"~ %d",authcookie);
1944                         NetSendToAll(buffer);
1945                 break;
1946                 // ~
1947                 // Store authcookie
1948                 // once stored, this authcookie permits other servers to log in
1949                 // without user or password, using it.
1950                 case '~':
1951                         auth_cookies.push_back(atoi(params));
1952                         log(DEBUG,"*** Stored auth cookie, will permit servers with auth-cookie %d",atoi(params));
1953                 break;
1954                 // connect back to a server using an authcookie
1955                 case '+':
1956                         handle_plus(token,params,source,reply,tcp_host);
1957                 break;
1958                 // routing table
1959                 case '$':
1960                         handle_dollar(token,params,source,reply,tcp_host);
1961                 break;
1962                 // node unreachable - we cant route to a server, sooooo we slit it off.
1963                 // servers can generate these for themselves for an squit.
1964                 case '&':
1965                         handle_amp(token,params,source,reply,tcp_host);
1966                 break;
1967                 // R <server> <data>
1968                 // redirect token, send all of <data> along to the given
1969                 // server as this server has been found to still have a route to it
1970                 case 'R':
1971                         handle_R(token,params,source,reply,tcp_host);
1972                 break;
1973                 // ?
1974                 // ping
1975                 case '?':
1976                         reply->SendPacket("!",tcp_host);
1977                 break;
1978                 // ?
1979                 // pong
1980                 case '!':
1981                 break;
1982                 // *
1983                 // no operation
1984                 case '*':
1985                 break;
1986                 // N <TS> <NICK> <HOST> <DHOST> <IDENT> <MODES> <SERVER> :<GECOS>
1987                 // introduce remote client
1988                 case 'N':
1989                         handle_N(token,params,source,reply,tcp_host);
1990                 break;
1991                 // a <NICK> :<GECOS>
1992                 // change GECOS (SETNAME)
1993                 case 'a':
1994                         handle_a(token,params,source,reply,tcp_host);
1995                 break;
1996                 // b <NICK> :<HOST>
1997                 // change displayed host (SETHOST)
1998                 case 'b':
1999                         handle_b(token,params,source,reply,tcp_host);
2000                 break;
2001                 // t <NICK> <CHANNEL> :<TOPIC>
2002                 // change a channel topic
2003                 case 't':
2004                         handle_t(token,params,source,reply,tcp_host);
2005                 break;
2006                 // i <NICK> <CHANNEL>
2007                 // invite a user to a channel
2008                 case 'i':
2009                         handle_i(token,params,source,reply,tcp_host);
2010                 break;
2011                 // k <SOURCE> <DEST> <CHANNEL> :<REASON>
2012                 // kick a user from a channel
2013                 case 'k':
2014                         handle_k(token,params,source,reply,tcp_host);
2015                 break;
2016                 // n <NICK> <NEWNICK>
2017                 // change nickname of client -- a server should only be able to
2018                 // change the nicknames of clients that reside on it unless
2019                 // they are ulined.
2020                 case 'n':
2021                         handle_n(token,params,source,reply,tcp_host);
2022                 break;
2023                 // J <NICK> <CHANLIST>
2024                 // Join user to channel list, merge channel permissions
2025                 case 'J':
2026                         handle_J(token,params,source,reply,tcp_host);
2027                 break;
2028                 // T <TS> <CHANNEL> <TOPICSETTER> :<TOPIC>
2029                 // change channel topic (netburst only)
2030                 case 'T':
2031                         handle_T(token,params,source,reply,tcp_host);
2032                 break;
2033                 // M <TARGET> <MODES> [MODE-PARAMETERS]
2034                 // Server setting modes on an object
2035                 case 'M':
2036                         handle_M(token,params,source,reply,tcp_host);
2037                 break;
2038                 // m <SOURCE> <TARGET> <MODES> [MODE-PARAMETERS]
2039                 // User setting modes on an object
2040                 case 'm':
2041                         handle_m(token,params,source,reply,tcp_host);
2042                 break;
2043                 // P <SOURCE> <TARGET> :<TEXT>
2044                 // Send a private/channel message
2045                 case 'P':
2046                         handle_P(token,params,source,reply,tcp_host);
2047                 break;
2048                 // V <SOURCE> <TARGET> :<TEXT>
2049                 // Send a private/channel notice
2050                 case 'V':
2051                         handle_V(token,params,source,reply,tcp_host);
2052                 break;
2053                 // L <SOURCE> <CHANNEL> :<REASON>
2054                 // User parting a channel
2055                 case 'L':
2056                         handle_L(token,params,source,reply,tcp_host);
2057                 break;
2058                 // Q <SOURCE> :<REASON>
2059                 // user quitting
2060                 case 'Q':
2061                         handle_Q(token,params,source,reply,tcp_host);
2062                 break;
2063                 // K <SOURCE> <DEST> :<REASON>
2064                 // remote kill
2065                 case 'K':
2066                         handle_K(token,params,source,reply,tcp_host);
2067                 break;
2068                 // @ <SOURCE> :<TEXT>
2069                 // wallops
2070                 case '@':
2071                         handle_AT(token,params,source,reply,tcp_host);
2072                 break;
2073                 // F <TS>
2074                 // end netburst
2075                 case 'F':
2076                         WriteOpers("Server %s has completed netburst. (%d secs)",tcp_host,time(NULL)-nb_start);
2077                         handle_F(token,params,source,reply,tcp_host);
2078                         nb_start = 0;
2079                         // tell all the other servers to use this authcookie to connect back again
2080                         // got '+ test3.chatspike.net 7010 -2016508415' from test.chatspike.net
2081                         snprintf(buffer,MAXBUF,"+ %s %s %d %d",tcp_host,ipaddr,port,authcookie);
2082                         NetSendToAllExcept(tcp_host,buffer);
2083                 break;
2084                 // X <reserved>
2085                 // Send netburst now
2086                 case 'X':
2087                         WriteOpers("Sending my netburst to %s",tcp_host);
2088                         DoSync(source,tcp_host);
2089                         WriteOpers("Send of netburst to %s completed",tcp_host);
2090                         NetSendMyRoutingTable();
2091                 break;
2092                 // anything else
2093                 default:
2094                         WriteOpers("WARNING! Unknown datagram type '%c'",token);
2095                 break;
2096         }
2097 }
2098
2099
2100 void handle_link_packet(char* udp_msg, char* tcp_host, serverrec *serv)
2101 {
2102         char response[10240];
2103         char token = udp_msg[0];
2104         char* params = udp_msg + 2;
2105         char finalparam[1024];
2106         strcpy(finalparam," :xxxx");
2107         if (strstr(udp_msg," :")) {
2108                 strncpy(finalparam,strstr(udp_msg," :"),1024);
2109         }
2110         if (token == '-') {
2111                 char* cookie = strtok(params," ");
2112                 char* servername = strtok(NULL," ");
2113                 char* serverdesc = finalparam+2;
2114
2115                 WriteOpers("AuthCookie CONNECT from %s (%s)",servername,tcp_host);
2116
2117                 for (int u = 0; u < auth_cookies.size(); u++)
2118                 {
2119                         if (auth_cookies[u] == atoi(cookie))
2120                         {
2121                                 WriteOpers("Allowed cookie from %s, is now part of the mesh",servername);
2122
2123
2124                                 for (int j = 0; j < 32; j++)
2125                                 {
2126                                         if (me[j] != NULL)
2127                                         {
2128                                                 for (int k = 0; k < me[j]->connectors.size(); k++)
2129                                                 {
2130                                                         if (!strcasecmp(me[j]->connectors[k].GetServerName().c_str(),tcp_host))
2131                                                         {
2132                                                                 me[j]->connectors[k].SetServerName(servername);
2133                                                                 me[j]->connectors[k].SetDescription(serverdesc);
2134                                                                 me[j]->connectors[k].SetState(STATE_CONNECTED);
2135                                                                 NetSendMyRoutingTable();
2136                                                                 return;
2137                                                         }
2138                                                 }
2139                                         }
2140                                         WriteOpers("\2WARNING!\2 %s sent us an authentication packet but we are not authenticating with this server right now! Possible intrusion attempt!",tcp_host);
2141                                         return;
2142                                 }
2143
2144
2145                                 return;
2146                         }
2147                 }
2148                 // bad cookie, bad bad! go sit in the corner!
2149                 WriteOpers("Bad cookie from %s!",servername);
2150                 return;
2151         }
2152         else
2153         if (token == 'S') {
2154                 // S test.chatspike.net password portn :ChatSpike InspIRCd test server
2155                 char* servername = strtok(params," ");
2156                 char* password = strtok(NULL," ");
2157                 char* myport = strtok(NULL," ");
2158                 char* revision = strtok(NULL," ");
2159                 char* serverdesc = finalparam+2;
2160
2161                 WriteOpers("CONNECT from %s (%s) (their port: %d)",servername,tcp_host,atoi(myport));
2162
2163                 ircd_connector* cn = serv->FindHost(servername);
2164
2165                 if (cn)
2166                 {
2167                         WriteOpers("CONNECT aborted: Server %s already exists from %s",servername,ServerName);
2168                         char buffer[MAXBUF];
2169                         sprintf(buffer,"E :Server %s already exists!",servername);
2170                         serv->SendPacket(buffer,tcp_host);
2171                         RemoveServer(tcp_host);
2172                         return;
2173                 }
2174
2175                 if (atoi(revision) != GetRevision())
2176                 {
2177                         WriteOpers("CONNECT aborted: Could not link to %s, is an incompatible version %s, our version is %d",servername,revision,GetRevision());
2178                         char buffer[MAXBUF];
2179                         sprintf(buffer,"E :Version number mismatch");
2180                         serv->SendPacket(buffer,tcp_host);
2181                         RemoveServer(tcp_host);
2182                         RemoveServer(servername);
2183                         return;
2184                 }
2185
2186                 for (int j = 0; j < serv->connectors.size(); j++)
2187                 {
2188                         if (!strcasecmp(serv->connectors[j].GetServerName().c_str(),tcp_host))
2189                         {
2190                                 serv->connectors[j].SetServerName(servername);
2191                                 serv->connectors[j].SetDescription(serverdesc);
2192                                 serv->connectors[j].SetServerPort(atoi(myport));
2193                         }
2194                 }
2195
2196
2197                 char Link_ServerName[1024];
2198                 char Link_IPAddr[1024];
2199                 char Link_Port[1024];
2200                 char Link_Pass[1024];
2201                 char Link_SendPass[1024];
2202                 int LinkPort = 0;
2203
2204                 // search for a corresponding <link> block in the config files
2205                 for (int i = 0; i < ConfValueEnum("link",&config_f); i++)
2206                 {
2207                         ConfValue("link","name",i,Link_ServerName,&config_f);
2208                         ConfValue("link","ipaddr",i,Link_IPAddr,&config_f);
2209                         ConfValue("link","port",i,Link_Port,&config_f);
2210                         ConfValue("link","recvpass",i,Link_Pass,&config_f);
2211                         ConfValue("link","sendpass",i,Link_SendPass,&config_f);
2212                         log(DEBUG,"(%d) Comparing against name='%s', ipaddr='%s', port='%s', recvpass='%s'",i,Link_ServerName,Link_IPAddr,Link_Port,Link_Pass);
2213                         LinkPort = atoi(Link_Port);
2214                         if (!strcasecmp(Link_ServerName,servername))
2215                         {
2216                                 // we have a matching link line -
2217                                 // send a 'diminutive' server message back...
2218                                 snprintf(response,10240,"s %s %s :%s",ServerName,Link_SendPass,ServerDesc);
2219                                 serv->SendPacket(response,servername);
2220
2221                                 for (int t = 0; t < serv->connectors.size(); t++)
2222                                 {
2223                                         if (!strcasecmp(serv->connectors[t].GetServerName().c_str(),servername))
2224                                         {
2225                                                 serv->connectors[t].SetState(STATE_CONNECTED);
2226                                         }
2227                                 }
2228
2229                                 return;
2230                         }
2231                 }
2232                 char buffer[MAXBUF];
2233                 sprintf(buffer,"E :Access is denied (no matching link block)");
2234                 serv->SendPacket(buffer,tcp_host);
2235                 WriteOpers("CONNECT from %s denied, no matching link block",servername);
2236                 RemoveServer(tcp_host);
2237                 RemoveServer(servername);
2238                 return;
2239         }
2240         else
2241         if (token == 's') {
2242                 // S test.chatspike.net password :ChatSpike InspIRCd test server
2243                 char* servername = strtok(params," ");
2244                 char* password = strtok(NULL," ");
2245                 char* serverdesc = finalparam+2;
2246
2247                 // TODO: we should do a check here to ensure that this server is one we recently initiated a
2248                 // link with, and didnt hear an 's' or 'E' back from yet (these are the only two valid responses
2249                 // to an 'S' command. If we didn't recently send an 'S' to this server, theyre trying to spoof
2250                 // a connect, so put out an oper alert!
2251
2252                 // for now, just accept all, we'll fix that later.
2253                 WriteOpers("%s accepted our link credentials ",servername);
2254
2255                 char Link_ServerName[1024];
2256                 char Link_IPAddr[1024];
2257                 char Link_Port[1024];
2258                 char Link_Pass[1024];
2259                 char Link_SendPass[1024];
2260                 int LinkPort = 0;
2261
2262                 // search for a corresponding <link> block in the config files
2263                 for (int i = 0; i < ConfValueEnum("link",&config_f); i++)
2264                 {
2265                         ConfValue("link","name",i,Link_ServerName,&config_f);
2266                         ConfValue("link","ipaddr",i,Link_IPAddr,&config_f);
2267                         ConfValue("link","port",i,Link_Port,&config_f);
2268                         ConfValue("link","recvpass",i,Link_Pass,&config_f);
2269                         ConfValue("link","sendpass",i,Link_SendPass,&config_f);
2270                         log(DEBUG,"(%d) Comparing against name='%s', ipaddr='%s', port='%s', recvpass='%s'",i,Link_ServerName,Link_IPAddr,Link_Port,Link_Pass);
2271                         LinkPort = atoi(Link_Port);
2272                         if (!strcasecmp(Link_ServerName,servername))
2273                         {
2274                                 // matching link at this end too, we're all done!
2275                                 // at this point we must begin key exchange and insert this
2276                                 // server into our 'active' table.
2277                                 for (int j = 0; j < 32; j++)
2278                                 {
2279                                         if (me[j] != NULL)
2280                                         {
2281                                                 for (int k = 0; k < me[j]->connectors.size(); k++)
2282                                                 {
2283                                                         if (!strcasecmp(me[j]->connectors[k].GetServerName().c_str(),tcp_host))
2284                                                         {
2285                                                                 char buffer[MAXBUF];
2286                                                                 me[j]->connectors[k].SetDescription(serverdesc);
2287                                                                 me[j]->connectors[k].SetState(STATE_CONNECTED);
2288                                                                 sprintf(buffer,"X 0");
2289                                                                 serv->SendPacket(buffer,tcp_host);
2290                                                                 DoSync(me[j],tcp_host);
2291                                                                 NetSendMyRoutingTable();
2292                                                                 return;
2293                                                         }
2294                                                 }
2295                                         }
2296                                         WriteOpers("\2WARNING!\2 %s sent us an authentication packet but we are not authenticating with this server right noe! Possible intrusion attempt!",tcp_host);
2297                                         return;
2298                                 }
2299                         }
2300                         else {
2301                                 log(DEBUG,"Server names '%s' and '%s' don't match",Link_ServerName,servername);
2302                         }
2303                 }
2304                 char buffer[MAXBUF];
2305                 sprintf(buffer,"E :Access is denied (no matching link block)");
2306                 serv->SendPacket(buffer,tcp_host);
2307                 WriteOpers("CONNECT from %s denied, no matching link block",servername);
2308                 RemoveServer(tcp_host);
2309                 RemoveServer(servername);
2310                 return;
2311         }
2312         else
2313         if (token == 'E') {
2314                 char* error_message = finalparam+2;
2315                 WriteOpers("ERROR from %s: %s",tcp_host,error_message);
2316                 return;
2317         }
2318         else {
2319
2320                 serverrec* source_server = NULL;
2321
2322                 for (int j = 0; j < 32; j++)
2323                 {
2324                         if (me[j] != NULL)
2325                         {
2326                                 for (int x = 0; x < me[j]->connectors.size(); x++)
2327                                 {
2328                                         log(DEBUG,"Servers are: '%s' '%s'",tcp_host,me[j]->connectors[x].GetServerName().c_str());
2329                                         if (!strcasecmp(me[j]->connectors[x].GetServerName().c_str(),tcp_host))
2330                                         {
2331                                                 if (me[j]->connectors[x].GetState() == STATE_CONNECTED)
2332                                                 {
2333                                                         // found a valid ircd_connector.
2334                                                         process_restricted_commands(token,params,me[j],serv,tcp_host,me[j]->connectors[x].GetServerIP(),me[j]->connectors[x].GetServerPort());
2335                                                         return;
2336                                                 }
2337                                         }
2338                                 }
2339                         }
2340                 }
2341
2342                 log(DEBUG,"Unrecognised token or unauthenticated host in datagram from %s: %c",tcp_host,token);
2343         }
2344 }
2345