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 #include "xline.h"
  37
  38 #ifdef GCC3
  39 #define nspace __gnu_cxx
  40 #else
  41 #define nspace std
  42 #endif
  43
  44 using namespace std;
  45
  46 extern int MODCOUNT;
  47 extern vector<Module*> modules;
  48 extern vector<ircd_module*> factory;
  49
  50 extern int LogLevel;
  51 extern char ServerName[MAXBUF];
  52 extern char Network[MAXBUF];
  53 extern char ServerDesc[MAXBUF];
  54 extern char AdminName[MAXBUF];
  55 extern char AdminEmail[MAXBUF];
  56 extern char AdminNick[MAXBUF];
  57 extern char diepass[MAXBUF];
  58 extern char restartpass[MAXBUF];
  59 extern char motd[MAXBUF];
  60 extern char rules[MAXBUF];
  61 extern char list[MAXBUF];
  62 extern char PrefixQuit[MAXBUF];
  63 extern char DieValue[MAXBUF];
  64
  65 extern int debugging;
  66 extern int WHOWAS_STALE;
  67 extern int WHOWAS_MAX;
  68 extern int DieDelay;
  69 extern time_t startup_time;
  70 extern int NetBufferSize;
  71 int MaxWhoResults;
  72 extern time_t nb_start;
  73
  74 extern std::vector<int> fd_reap;
  75 extern std::vector<std::string> module_names;
  76
  77 extern char bannerBuffer[MAXBUF];
  78 extern int boundPortCount;
  79 extern int portCount;
  80 extern int UDPportCount;
  81 extern int ports[MAXSOCKS];
  82 extern int defaultRoute;
  83
  84 extern std::vector<long> auth_cookies;
  85 extern std::stringstream config_f;
  86
  87 extern serverrec* me[32];
  88
  89 extern FILE *log_file;
  90
  91 const long duration_m = 60;
  92 const long duration_h = duration_m * 60;
  93 const long duration_d = duration_h * 24;
  94 const long duration_w = duration_d * 7;
  95 const long duration_y = duration_w * 52;
  96
  97 namespace nspace
  98 {
  99         template<> struct nspace::hash<in_addr>
 100         {
 101                 size_t operator()(const struct in_addr &a) const
 102                 {
 103                         size_t q;
 104                         memcpy(&q,&a,sizeof(size_t));
 105                         return q;
 106                 }
 107         };
 108
 109         template<> struct nspace::hash<string>
 110         {
 111                 size_t operator()(const string &s) const
 112                 {
 113                         char a[MAXBUF];
 114                         static struct hash<const char *> strhash;
 115                         strcpy(a,s.c_str());
 116                         strlower(a);
 117                         return strhash(a);
 118                 }
 119         };
 120 }
 121
 122
 123 struct StrHashComp
 124 {
 125
 126         bool operator()(const string& s1, const string& s2) const
 127         {
 128                 char a[MAXBUF],b[MAXBUF];
 129                 strcpy(a,s1.c_str());
 130                 strcpy(b,s2.c_str());
 131                 return (strcasecmp(a,b) == 0);
 132         }
 133
 134 };
 135
 136 struct InAddr_HashComp
 137 {
 138
 139         bool operator()(const in_addr &s1, const in_addr &s2) const
 140         {
 141                 size_t q;
 142                 size_t p;
 143
 144                 memcpy(&q,&s1,sizeof(size_t));
 145                 memcpy(&p,&s2,sizeof(size_t));
 146
 147                 return (q == p);
 148         }
 149
 150 };
 151
 152
 153 typedef nspace::hash_map<std::string, userrec*, nspace::hash<string>, StrHashComp> user_hash;
 154 typedef nspace::hash_map<std::string, chanrec*, nspace::hash<string>, StrHashComp> chan_hash;
 155 typedef nspace::hash_map<in_addr,string*, nspace::hash<in_addr>, InAddr_HashComp> address_cache;
 156 typedef std::deque<command_t> command_table;
 157
 158
 159 extern user_hash clientlist;
 160 extern chan_hash chanlist;
 161 extern user_hash whowas;
 162 extern command_table cmdlist;
 163 extern file_cache MOTD;
 164 extern file_cache RULES;
 165 extern address_cache IP;
 166
 167
 168 void handle_join(char **parameters, int pcnt, userrec *user)
 169 {
 170         chanrec* Ptr;
 171         int i = 0;
 172
 173         if (loop_call(handle_join,parameters,pcnt,user,0,0,1))
 174                 return;
 175         if (parameters[0][0] == '#')
 176         {
 177                 Ptr = add_channel(user,parameters[0],parameters[1],false);
 178         }
 179 }
 180
 181
 182 void handle_part(char **parameters, int pcnt, userrec *user)
 183 {
 184         chanrec* Ptr;
 185
 186         if (pcnt > 1)
 187         {
 188                 if (loop_call(handle_part,parameters,pcnt,user,0,pcnt-2,0))
 189                         return;
 190                 del_channel(user,parameters[0],parameters[1],false);
 191         }
 192         else
 193         {
 194                 if (loop_call(handle_part,parameters,pcnt,user,0,pcnt-1,0))
 195                         return;
 196                 del_channel(user,parameters[0],NULL,false);
 197         }
 198 }
 199
 200 void handle_kick(char **parameters, int pcnt, userrec *user)
 201 {
 202         chanrec* Ptr = FindChan(parameters[0]);
 203         userrec* u   = Find(parameters[1]);
 204
 205         if ((!u) || (!Ptr))
 206         {
 207                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
 208                 return;
 209         }
 210
 211         if (!has_channel(u,Ptr))
 212         {
 213                 WriteServ(user->fd,"442 %s %s :You're not on that channel!",user->nick, parameters[0]);
 214                 return;
 215         }
 216
 217         char reason[MAXBUF];
 218
 219         if (pcnt > 2)
 220         {
 221                 strncpy(reason,parameters[2],MAXBUF);
 222                 if (strlen(reason)>MAXKICK)
 223                 {
 224                         reason[MAXKICK-1] = '\0';
 225                 }
 226
 227                 kick_channel(user,u,Ptr,reason);
 228         }
 229         else
 230         {
 231                 strcpy(reason,user->nick);
 232                 kick_channel(user,u,Ptr,reason);
 233         }
 234
 235         // this must be propogated so that channel membership is kept in step network-wide
 236
 237         char buffer[MAXBUF];
 238         snprintf(buffer,MAXBUF,"k %s %s %s :%s",user->nick,u->nick,Ptr->name,reason);
 239         NetSendToAll(buffer);
 240 }
 241
 242
 243 void handle_die(char **parameters, int pcnt, userrec *user)
 244 {
 245         log(DEBUG,"die: %s",user->nick);
 246         if (!strcmp(parameters[0],diepass))
 247         {
 248                 WriteOpers("*** DIE command from %s!%s@%s, terminating...",user->nick,user->ident,user->host);
 249                 sleep(DieDelay);
 250                 Exit(ERROR);
 251         }
 252         else
 253         {
 254                 WriteOpers("*** Failed DIE Command from %s!%s@%s.",user->nick,user->ident,user->host);
 255         }
 256 }
 257
 258 void handle_restart(char **parameters, int pcnt, userrec *user)
 259 {
 260         log(DEBUG,"restart: %s",user->nick);
 261         if (!strcmp(parameters[0],restartpass))
 262         {
 263                 WriteOpers("*** RESTART command from %s!%s@%s, Pretending to restart till this is finished :D",user->nick,user->ident,user->host);
 264                 sleep(DieDelay);
 265                 Exit(ERROR);
 266                 /* Will finish this later when i can be arsed :) */
 267         }
 268         else
 269         {
 270                 WriteOpers("*** Failed RESTART Command from %s!%s@%s.",user->nick,user->ident,user->host);
 271         }
 272 }
 273
 274 void handle_kill(char **parameters, int pcnt, userrec *user)
 275 {
 276         userrec *u = Find(parameters[0]);
 277         char killreason[MAXBUF];
 278
 279         log(DEBUG,"kill: %s %s",parameters[0],parameters[1]);
 280         if (u)
 281         {
 282                 if (strcmp(ServerName,u->server))
 283                 {
 284                         // remote kill
 285                         WriteOpers("*** Remote kill by %s: %s!%s@%s (%s)",user->nick,u->nick,u->ident,u->host,parameters[1]);
 286                         sprintf(killreason,"[%s] Killed (%s (%s))",ServerName,user->nick,parameters[1]);
 287                         WriteCommonExcept(u,"QUIT :%s",killreason);
 288                         // K token must go to ALL servers!!!
 289                         char buffer[MAXBUF];
 290                         snprintf(buffer,MAXBUF,"K %s %s :%s",user->nick,u->nick,killreason);
 291                         NetSendToAll(buffer);
 292
 293                         user_hash::iterator iter = clientlist.find(u->nick);
 294                         if (iter != clientlist.end())
 295                         {
 296                                 log(DEBUG,"deleting user hash value %d",iter->second);
 297                                 if ((iter->second) && (user->registered == 7)) {
 298                                         delete iter->second;
 299                                         }
 300                         clientlist.erase(iter);
 301                         }
 302                         purge_empty_chans();
 303                 }
 304                 else
 305                 {
 306                         // local kill
 307                         WriteTo(user, u, "KILL %s :%s!%s!%s (%s)", u->nick, ServerName,user->dhost,user->nick,parameters[1]);
 308                         WriteOpers("*** Local Kill by %s: %s!%s@%s (%s)",user->nick,u->nick,u->ident,u->host,parameters[1]);
 309                         sprintf(killreason,"Killed (%s (%s))",user->nick,parameters[1]);
 310                         kill_link(u,killreason);
 311                 }
 312         }
 313         else
 314         {
 315                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
 316         }
 317 }
 318
 319 void handle_summon(char **parameters, int pcnt, userrec *user)
 320 {
 321         WriteServ(user->fd,"445 %s :SUMMON has been disabled (depreciated command)",user->nick);
 322 }
 323
 324 void handle_users(char **parameters, int pcnt, userrec *user)
 325 {
 326         WriteServ(user->fd,"445 %s :USERS has been disabled (depreciated command)",user->nick);
 327 }
 328
 329 void handle_pass(char **parameters, int pcnt, userrec *user)
 330 {
 331         // Check to make sure they havnt registered -- Fix by FCS
 332         if (user->registered == 7)
 333         {
 334                 WriteServ(user->fd,"462 %s :You may not reregister",user->nick);
 335                 return;
 336         }
 337         if (!strcasecmp(parameters[0],Passwd(user)))
 338         {
 339                 user->haspassed = true;
 340         }
 341 }
 342
 343 void handle_invite(char **parameters, int pcnt, userrec *user)
 344 {
 345         userrec* u = Find(parameters[0]);
 346         chanrec* c = FindChan(parameters[1]);
 347
 348         if ((!c) || (!u))
 349         {
 350                 if (!c)
 351                 {
 352                         WriteServ(user->fd,"401 %s %s :No such nick/channel",user->nick, parameters[1]);
 353                 }
 354                 else
 355                 {
 356                         if (c->inviteonly)
 357                         {
 358                                 WriteServ(user->fd,"401 %s %s :No such nick/channel",user->nick, parameters[0]);
 359                         }
 360                 }
 361
 362                 return;
 363         }
 364
 365         if (c->inviteonly)
 366         {
 367                 if (cstatus(user,c) < STATUS_HOP)
 368                 {
 369                         WriteServ(user->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel",user->nick, c->name);
 370                         return;
 371                 }
 372         }
 373         if (has_channel(u,c))
 374         {
 375                 WriteServ(user->fd,"443 %s %s %s :Is already on channel %s",user->nick,u->nick,c->name,c->name);
 376                 return;
 377         }
 378         if (!has_channel(user,c))
 379         {
 380                 WriteServ(user->fd,"442 %s %s :You're not on that channel!",user->nick, c->name);
 381                 return;
 382         }
 383         u->InviteTo(c->name);
 384         WriteFrom(u->fd,user,"INVITE %s :%s",u->nick,c->name);
 385         WriteServ(user->fd,"341 %s %s %s",user->nick,u->nick,c->name);
 386
 387         // i token must go to ALL servers!!!
 388         char buffer[MAXBUF];
 389         snprintf(buffer,MAXBUF,"i %s %s %s",u->nick,user->nick,c->name);
 390         NetSendToAll(buffer);
 391 }
 392
 393 void handle_topic(char **parameters, int pcnt, userrec *user)
 394 {
 395         chanrec* Ptr;
 396
 397         if (pcnt == 1)
 398         {
 399                 if (strlen(parameters[0]) <= CHANMAX)
 400                 {
 401                         Ptr = FindChan(parameters[0]);
 402                         if (Ptr)
 403                         {
 404                                 if (Ptr->topicset)
 405                                 {
 406                                         WriteServ(user->fd,"332 %s %s :%s", user->nick, Ptr->name, Ptr->topic);
 407                                         WriteServ(user->fd,"333 %s %s %s %d", user->nick, Ptr->name, Ptr->setby, Ptr->topicset);
 408                                 }
 409                                 else
 410                                 {
 411                                         WriteServ(user->fd,"331 %s %s :No topic is set.", user->nick, Ptr->name);
 412                                 }
 413                         }
 414                         else
 415                         {
 416                                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
 417                         }
 418                 }
 419                 return;
 420         }
 421         else if (pcnt>1)
 422         {
 423                 if (strlen(parameters[0]) <= CHANMAX)
 424                 {
 425                         Ptr = FindChan(parameters[0]);
 426                         if (Ptr)
 427                         {
 428                                 if ((Ptr->topiclock) && (cstatus(user,Ptr)<STATUS_HOP))
 429                                 {
 430                                         WriteServ(user->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel", user->nick, Ptr->name);
 431                                         return;
 432                                 }
 433
 434                                 char topic[MAXBUF];
 435                                 strncpy(topic,parameters[1],MAXBUF);
 436                                 if (strlen(topic)>MAXTOPIC)
 437                                 {
 438                                         topic[MAXTOPIC-1] = '\0';
 439                                 }
 440
 441                                 strcpy(Ptr->topic,topic);
 442                                 strcpy(Ptr->setby,user->nick);
 443                                 Ptr->topicset = time(NULL);
 444                                 WriteChannel(Ptr,user,"TOPIC %s :%s",Ptr->name, Ptr->topic);
 445
 446                                 // t token must go to ALL servers!!!
 447                                 char buffer[MAXBUF];
 448                                 snprintf(buffer,MAXBUF,"t %s %s :%s",user->nick,Ptr->name,topic);
 449                                 NetSendToAll(buffer);
 450                         }
 451                         else
 452                         {
 453                                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
 454                         }
 455                 }
 456         }
 457 }
 458
 459 void handle_names(char **parameters, int pcnt, userrec *user)
 460 {
 461         chanrec* c;
 462
 463         if (loop_call(handle_names,parameters,pcnt,user,0,pcnt-1,0))
 464                 return;
 465         c = FindChan(parameters[0]);
 466         if (c)
 467         {
 468                 /*WriteServ(user->fd,"353 %s = %s :%s", user->nick, c->name,*/
 469                 userlist(user,c);
 470                 WriteServ(user->fd,"366 %s %s :End of /NAMES list.", user->nick, c->name);
 471         }
 472         else
 473         {
 474                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
 475         }
 476 }
 477
 478 void handle_privmsg(char **parameters, int pcnt, userrec *user)
 479 {
 480         userrec *dest;
 481         chanrec *chan;
 482
 483         user->idle_lastmsg = time(NULL);
 484
 485         if (loop_call(handle_privmsg,parameters,pcnt,user,0,pcnt-2,0))
 486                 return;
 487         if (parameters[0][0] == '#')
 488         {
 489                 chan = FindChan(parameters[0]);
 490                 if (chan)
 491                 {
 492                         if ((chan->noexternal) && (!has_channel(user,chan)))
 493                         {
 494                                 WriteServ(user->fd,"404 %s %s :Cannot send to channel (no external messages)", user->nick, chan->name);
 495                                 return;
 496                         }
 497                         if ((chan->moderated) && (cstatus(user,chan)<STATUS_VOICE))
 498                         {
 499                                 WriteServ(user->fd,"404 %s %s :Cannot send to channel (+m)", user->nick, chan->name);
 500                                 return;
 501                         }
 502
 503                         int MOD_RESULT = 0;
 504
 505                         FOREACH_RESULT(OnUserPreMessage(user,chan,TYPE_CHANNEL,std::string(parameters[1])));
 506                         if (MOD_RESULT) {
 507                                 return;
 508                         }
 509
 510                         ChanExceptSender(chan, user, "PRIVMSG %s :%s", chan->name, parameters[1]);
 511
 512                         // if any users of this channel are on remote servers, broadcast the packet
 513                         char buffer[MAXBUF];
 514                         snprintf(buffer,MAXBUF,"P %s %s :%s",user->nick,chan->name,parameters[1]);
 515                         NetSendToCommon(user,buffer);
 516                 }
 517                 else
 518                 {
 519                         /* no such nick/channel */
 520                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
 521                 }
 522                 return;
 523         }
 524
 525         dest = Find(parameters[0]);
 526         if (dest)
 527         {
 528                 if (strcmp(dest->awaymsg,""))
 529                 {
 530                         /* auto respond with aweh msg */
 531                         WriteServ(user->fd,"301 %s %s :%s",user->nick,dest->nick,dest->awaymsg);
 532                 }
 533
 534                 int MOD_RESULT = 0;
 535
 536                 FOREACH_RESULT(OnUserPreMessage(user,dest,TYPE_USER,std::string(parameters[1])));
 537                 if (MOD_RESULT) {
 538                         return;
 539                 }
 540
 541
 542
 543                 if (!strcmp(dest->server,user->server))
 544                 {
 545                         // direct write, same server
 546                         WriteTo(user, dest, "PRIVMSG %s :%s", dest->nick, parameters[1]);
 547                 }
 548                 else
 549                 {
 550                         char buffer[MAXBUF];
 551                         snprintf(buffer,MAXBUF,"P %s %s :%s",user->nick,dest->nick,parameters[1]);
 552                         NetSendToOne(dest->server,buffer);
 553                 }
 554         }
 555         else
 556         {
 557                 /* no such nick/channel */
 558                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
 559         }
 560 }
 561
 562 void handle_notice(char **parameters, int pcnt, userrec *user)
 563 {
 564         userrec *dest;
 565         chanrec *chan;
 566
 567         user->idle_lastmsg = time(NULL);
 568
 569         if (loop_call(handle_notice,parameters,pcnt,user,0,pcnt-2,0))
 570                 return;
 571         if (parameters[0][0] == '#')
 572         {
 573                 chan = FindChan(parameters[0]);
 574                 if (chan)
 575                 {
 576                         if ((chan->noexternal) && (!has_channel(user,chan)))
 577                         {
 578                                 WriteServ(user->fd,"404 %s %s :Cannot send to channel (no external messages)", user->nick, chan->name);
 579                                 return;
 580                         }
 581                         if ((chan->moderated) && (cstatus(user,chan)<STATUS_VOICE))
 582                         {
 583                                 WriteServ(user->fd,"404 %s %s :Cannot send to channel (+m)", user->nick, chan->name);
 584                                 return;
 585                         }
 586
 587                         int MOD_RESULT = 0;
 588
 589                         FOREACH_RESULT(OnUserPreNotice(user,chan,TYPE_CHANNEL,std::string(parameters[1])));
 590                         if (MOD_RESULT) {
 591                                 return;
 592                         }
 593
 594                         ChanExceptSender(chan, user, "NOTICE %s :%s", chan->name, parameters[1]);
 595
 596                         // if any users of this channel are on remote servers, broadcast the packet
 597                         char buffer[MAXBUF];
 598                         snprintf(buffer,MAXBUF,"V %s %s :%s",user->nick,chan->name,parameters[1]);
 599                         NetSendToCommon(user,buffer);
 600                 }
 601                 else
 602                 {
 603                         /* no such nick/channel */
 604                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
 605                 }
 606                 return;
 607         }
 608
 609         dest = Find(parameters[0]);
 610         if (dest)
 611         {
 612                 int MOD_RESULT = 0;
 613
 614                 FOREACH_RESULT(OnUserPreNotice(user,dest,TYPE_USER,std::string(parameters[1])));
 615                 if (MOD_RESULT) {
 616                         return;
 617                 }
 618
 619                 if (!strcmp(dest->server,user->server))
 620                 {
 621                         // direct write, same server
 622                         WriteTo(user, dest, "NOTICE %s :%s", dest->nick, parameters[1]);
 623                 }
 624                 else
 625                 {
 626                         char buffer[MAXBUF];
 627                         snprintf(buffer,MAXBUF,"V %s %s :%s",user->nick,dest->nick,parameters[1]);
 628                         NetSendToOne(dest->server,buffer);
 629                 }
 630         }
 631         else
 632         {
 633                 /* no such nick/channel */
 634                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
 635         }
 636 }
 637
 638
 639 void handle_info(char **parameters, int pcnt, userrec *user)
 640 {
 641         WriteServ(user->fd,"371 %s :The Inspire IRCd Project Has been brought to you by the following people..",user->nick);
 642         WriteServ(user->fd,"371 %s :Craig Edwards, Craig McLure, and Others..",user->nick);
 643         WriteServ(user->fd,"371 %s :Will finish this later when i can be arsed :p",user->nick);
 644         FOREACH_MOD OnInfo(user);
 645         WriteServ(user->fd,"374 %s :End of /INFO list",user->nick);
 646 }
 647
 648 void handle_time(char **parameters, int pcnt, userrec *user)
 649 {
 650         time_t rawtime;
 651         struct tm * timeinfo;
 652
 653         time ( &rawtime );
 654         timeinfo = localtime ( &rawtime );
 655         WriteServ(user->fd,"391 %s %s :%s",user->nick,ServerName, asctime (timeinfo) );
 656
 657 }
 658
 659 void handle_whois(char **parameters, int pcnt, userrec *user)
 660 {
 661         userrec *dest;
 662         char *t;
 663
 664         if (loop_call(handle_whois,parameters,pcnt,user,0,pcnt-1,0))
 665                 return;
 666         dest = Find(parameters[0]);
 667         if (dest)
 668         {
 669                 // bug found by phidjit - were able to whois an incomplete connection if it had sent a NICK or USER
 670                 if (dest->registered == 7)
 671                 {
 672                         WriteServ(user->fd,"311 %s %s %s %s * :%s",user->nick, dest->nick, dest->ident, dest->dhost, dest->fullname);
 673                         if ((user == dest) || (strchr(user->modes,'o')))
 674                         {
 675                                 WriteServ(user->fd,"378 %s %s :is connecting from *@%s",user->nick, dest->nick, dest->host);
 676                         }
 677                         if (strcmp(chlist(dest),""))
 678                         {
 679                                 WriteServ(user->fd,"319 %s %s :%s",user->nick, dest->nick, chlist(dest));
 680                         }
 681                         WriteServ(user->fd,"312 %s %s %s :%s",user->nick, dest->nick, dest->server, GetServerDescription(dest->server).c_str());
 682                         if (strcmp(dest->awaymsg,""))
 683                         {
 684                                 WriteServ(user->fd,"301 %s %s :%s",user->nick, dest->nick, dest->awaymsg);
 685                         }
 686                         if (strchr(dest->modes,'o'))
 687                         {
 688                                 WriteServ(user->fd,"313 %s %s :is an IRC operator",user->nick, dest->nick);
 689                         }
 690                         FOREACH_MOD OnWhois(user,dest);
 691                         if (!strcasecmp(user->server,dest->server))
 692                         {
 693                                 // idle time and signon line can only be sent if youre on the same server (according to RFC)
 694                                 WriteServ(user->fd,"317 %s %s %d %d :seconds idle, signon time",user->nick, dest->nick, abs((dest->idle_lastmsg)-time(NULL)), dest->signon);
 695                         }
 696
 697                         WriteServ(user->fd,"318 %s %s :End of /WHOIS list.",user->nick, dest->nick);
 698                 }
 699                 else
 700                 {
 701                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
 702                 }
 703         }
 704         else
 705         {
 706                 /* no such nick/channel */
 707                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
 708         }
 709 }
 710
 711 void handle_quit(char **parameters, int pcnt, userrec *user)
 712 {
 713         user_hash::iterator iter = clientlist.find(user->nick);
 714         char* reason;
 715
 716         if (user->registered == 7)
 717         {
 718                 /* theres more to do here, but for now just close the socket */
 719                 if (pcnt == 1)
 720                 {
 721                         if (parameters[0][0] == ':')
 722                         {
 723                                 *parameters[0]++;
 724                         }
 725                         reason = parameters[0];
 726
 727                         if (strlen(reason)>MAXQUIT)
 728                         {
 729                                 reason[MAXQUIT-1] = '\0';
 730                         }
 731
 732                         Write(user->fd,"ERROR :Closing link (%s@%s) [%s]",user->ident,user->host,parameters[0]);
 733                         WriteOpers("*** Client exiting: %s!%s@%s [%s]",user->nick,user->ident,user->host,parameters[0]);
 734                         WriteCommonExcept(user,"QUIT :%s%s",PrefixQuit,parameters[0]);
 735
 736                         char buffer[MAXBUF];
 737                         snprintf(buffer,MAXBUF,"Q %s :%s%s",user->nick,PrefixQuit,parameters[0]);
 738                         NetSendToAll(buffer);
 739                 }
 740                 else
 741                 {
 742                         Write(user->fd,"ERROR :Closing link (%s@%s) [QUIT]",user->ident,user->host);
 743                         WriteOpers("*** Client exiting: %s!%s@%s [Client exited]",user->nick,user->ident,user->host);
 744                         WriteCommonExcept(user,"QUIT :Client exited");
 745
 746                         char buffer[MAXBUF];
 747                         snprintf(buffer,MAXBUF,"Q %s :Client exited",user->nick);
 748                         NetSendToAll(buffer);
 749                 }
 750                 FOREACH_MOD OnUserQuit(user);
 751                 AddWhoWas(user);
 752         }
 753
 754         /* push the socket on a stack of sockets due to be closed at the next opportunity */
 755         fd_reap.push_back(user->fd);
 756
 757         if (iter != clientlist.end())
 758         {
 759                 clientlist.erase(iter);
 760                 log(DEBUG,"deleting user hash value %d",iter->second);
 761                 //if ((user) && (user->registered == 7)) {
 762                         //delete user;
 763                 //}
 764         }
 765
 766         if (user->registered == 7) {
 767                 purge_empty_chans();
 768         }
 769 }
 770
 771 void handle_who(char **parameters, int pcnt, userrec *user)
 772 {
 773         chanrec* Ptr = NULL;
 774
 775         /* theres more to do here, but for now just close the socket */
 776         if (pcnt == 1)
 777         {
 778                 if ((!strcmp(parameters[0],"0")) || (!strcmp(parameters[0],"*")))
 779                 {
 780                         if (user->chans[0].channel)
 781                         {
 782                                 int n_list = 0;
 783                                 for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
 784                                 {
 785                                         Ptr = i->second->chans[0].channel;
 786                                         // suggested by phidjit and FCS
 787                                         if ((!common_channels(user,i->second)) && (isnick(i->second->nick)))
 788                                         {
 789                                                 WriteServ(user->fd,"352 %s %s %s %s %s %s Hr@ :0 %s",user->nick, Ptr ? Ptr->name : "*", i->second->ident, i->second->dhost, i->second->server, i->second->nick, i->second->fullname);
 790                                                 n_list++;
 791                                                 if (n_list > MaxWhoResults)
 792                                                         break;
 793                                         }
 794                                 }
 795                         }
 796                         if (Ptr)
 797                         {
 798                                 WriteServ(user->fd,"315 %s %s :End of /WHO list.",user->nick, Ptr->name);
 799                         }
 800                         else
 801                         {
 802                                 WriteServ(user->fd,"315 %s %s :End of /WHO list.",user->nick, user->nick);
 803                         }
 804                         return;
 805                 }
 806                 if (parameters[0][0] == '#')
 807                 {
 808                         Ptr = FindChan(parameters[0]);
 809                         if (Ptr)
 810                         {
 811                                 for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
 812                                 {
 813                                         if ((has_channel(i->second,Ptr)) && (isnick(i->second->nick)))
 814                                         {
 815                                                 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);
 816                                         }
 817                                 }
 818                                 WriteServ(user->fd,"315 %s %s :End of /WHO list.",user->nick, Ptr->name);
 819                         }
 820                         else
 821                         {
 822                                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
 823                         }
 824                 }
 825                 else
 826                 {
 827                         userrec* u = Find(parameters[0]);
 828                         if (u)
 829                         {
 830                                 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);
 831                         }
 832                         WriteServ(user->fd,"315 %s %s :End of /WHO list.",user->nick, parameters[0]);
 833                 }
 834         }
 835         if (pcnt == 2)
 836         {
 837                 if ((!strcmp(parameters[0],"0")) || (!strcmp(parameters[0],"*")) && (!strcmp(parameters[1],"o")))
 838                 {
 839                         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
 840                         {
 841                                 if ((common_channels(user,i->second)) && (isnick(i->second->nick)))
 842                                 {
 843                                         if (strchr(i->second->modes,'o'))
 844                                         {
 845                                                 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);
 846                                         }
 847                                 }
 848                         }
 849                         WriteServ(user->fd,"315 %s %s :End of /WHO list.",user->nick, user->nick);
 850                         return;
 851                 }
 852         }
 853 }
 854
 855 void handle_wallops(char **parameters, int pcnt, userrec *user)
 856 {
 857         WriteWallOps(user,false,"%s",parameters[0]);
 858 }
 859
 860 void handle_list(char **parameters, int pcnt, userrec *user)
 861 {
 862         chanrec* Ptr;
 863
 864         WriteServ(user->fd,"321 %s Channel :Users Name",user->nick);
 865         for (chan_hash::const_iterator i = chanlist.begin(); i != chanlist.end(); i++)
 866         {
 867                 if ((!i->second->c_private) && (!i->second->secret))
 868                 {
 869                         WriteServ(user->fd,"322 %s %s %d :[+%s] %s",user->nick,i->second->name,usercount_i(i->second),chanmodes(i->second),i->second->topic);
 870                 }
 871         }
 872         WriteServ(user->fd,"323 %s :End of channel list.",user->nick);
 873 }
 874
 875
 876 void handle_rehash(char **parameters, int pcnt, userrec *user)
 877 {
 878         WriteServ(user->fd,"382 %s %s :Rehashing",user->nick,CleanFilename(CONFIG_FILE));
 879         ReadConfig();
 880         FOREACH_MOD OnRehash();
 881         WriteOpers("%s is rehashing config file %s",user->nick,CleanFilename(CONFIG_FILE));
 882 }
 883
 884 void handle_lusers(char **parameters, int pcnt, userrec *user)
 885 {
 886         WriteServ(user->fd,"251 %s :There are %d users and %d invisible on %d servers",user->nick,usercnt()-usercount_invisible(),usercount_invisible(),servercount());
 887         WriteServ(user->fd,"252 %s %d :operator(s) online",user->nick,usercount_opers());
 888         WriteServ(user->fd,"253 %s %d :unknown connections",user->nick,usercount_unknown());
 889         WriteServ(user->fd,"254 %s %d :channels formed",user->nick,chancount());
 890         WriteServ(user->fd,"254 %s :I have %d clients and %d servers",user->nick,local_count(),count_servs());
 891 }
 892
 893 void handle_admin(char **parameters, int pcnt, userrec *user)
 894 {
 895         WriteServ(user->fd,"256 %s :Administrative info for %s",user->nick,ServerName);
 896         WriteServ(user->fd,"257 %s :Name     - %s",user->nick,AdminName);
 897         WriteServ(user->fd,"258 %s :Nickname - %s",user->nick,AdminNick);
 898         WriteServ(user->fd,"258 %s :E-Mail   - %s",user->nick,AdminEmail);
 899 }
 900
 901 void handle_ping(char **parameters, int pcnt, userrec *user)
 902 {
 903         WriteServ(user->fd,"PONG %s :%s",ServerName,parameters[0]);
 904 }
 905
 906 void handle_pong(char **parameters, int pcnt, userrec *user)
 907 {
 908         // set the user as alive so they survive to next ping
 909         user->lastping = 1;
 910 }
 911
 912 void handle_motd(char **parameters, int pcnt, userrec *user)
 913 {
 914         ShowMOTD(user);
 915 }
 916
 917 void handle_rules(char **parameters, int pcnt, userrec *user)
 918 {
 919         ShowRULES(user);
 920 }
 921
 922 void handle_user(char **parameters, int pcnt, userrec *user)
 923 {
 924         if (user->registered < 3)
 925         {
 926                 if (isident(parameters[0]) == 0) {
 927                         // This kinda Sucks, According to the RFC thou, its either this,
 928                         // or "You have already registered" :p -- Craig
 929                         WriteServ(user->fd,"461 %s USER :Not enough parameters",user->nick);
 930                 }
 931                 else {
 932                         WriteServ(user->fd,"NOTICE Auth :No ident response, ident prefixed with ~");
 933                         strcpy(user->ident,"~"); /* we arent checking ident... but these days why bother anyway? */
 934                         strncat(user->ident,parameters[0],IDENTMAX);
 935                         strncpy(user->fullname,parameters[3],128);
 936                         user->registered = (user->registered | 1);
 937                 }
 938         }
 939         else
 940         {
 941                 WriteServ(user->fd,"462 %s :You may not reregister",user->nick);
 942                 return;
 943         }
 944         /* parameters 2 and 3 are local and remote hosts, ignored when sent by client connection */
 945         if (user->registered == 3)
 946         {
 947                 /* user is registered now, bit 0 = USER command, bit 1 = sent a NICK command */
 948                 ConnectUser(user);
 949         }
 950 }
 951
 952 void handle_userhost(char **parameters, int pcnt, userrec *user)
 953 {
 954         char Return[MAXBUF],junk[MAXBUF];
 955         sprintf(Return,"302 %s :",user->nick);
 956         for (int i = 0; i < pcnt; i++)
 957         {
 958                 userrec *u = Find(parameters[i]);
 959                 if (u)
 960                 {
 961                         if (strchr(u->modes,'o'))
 962                         {
 963                                 sprintf(junk,"%s*=+%s@%s ",u->nick,u->ident,u->host);
 964                                 strcat(Return,junk);
 965                         }
 966                         else
 967                         {
 968                                 sprintf(junk,"%s=+%s@%s ",u->nick,u->ident,u->host);
 969                                 strcat(Return,junk);
 970                         }
 971                 }
 972         }
 973         WriteServ(user->fd,Return);
 974 }
 975
 976
 977 void handle_ison(char **parameters, int pcnt, userrec *user)
 978 {
 979         char Return[MAXBUF];
 980         sprintf(Return,"303 %s :",user->nick);
 981         for (int i = 0; i < pcnt; i++)
 982         {
 983                 userrec *u = Find(parameters[i]);
 984                 if (u)
 985                 {
 986                         strcat(Return,u->nick);
 987                         strcat(Return," ");
 988                 }
 989         }
 990         WriteServ(user->fd,Return);
 991 }
 992
 993
 994 void handle_away(char **parameters, int pcnt, userrec *user)
 995 {
 996         if (pcnt)
 997         {
 998                 strcpy(user->awaymsg,parameters[0]);
 999                 WriteServ(user->fd,"306 %s :You have been marked as being away",user->nick);
1000         }
1001         else
1002         {
1003                 strcpy(user->awaymsg,"");
1004                 WriteServ(user->fd,"305 %s :You are no longer marked as being away",user->nick);
1005         }
1006 }
1007
1008 void handle_whowas(char **parameters, int pcnt, userrec* user)
1009 {
1010         user_hash::iterator i = whowas.find(parameters[0]);
1011
1012         if (i == whowas.end())
1013         {
1014                 WriteServ(user->fd,"406 %s %s :There was no such nickname",user->nick,parameters[0]);
1015                 WriteServ(user->fd,"369 %s %s :End of WHOWAS",user->nick,parameters[0]);
1016         }
1017         else
1018         {
1019                 time_t rawtime = i->second->signon;
1020                 tm *timeinfo;
1021                 char b[MAXBUF];
1022
1023                 timeinfo = localtime(&rawtime);
1024                 strcpy(b,asctime(timeinfo));
1025                 b[strlen(b)-1] = '\0';
1026
1027                 WriteServ(user->fd,"314 %s %s %s %s * :%s",user->nick,i->second->nick,i->second->ident,i->second->dhost,i->second->fullname);
1028                 WriteServ(user->fd,"312 %s %s %s :%s",user->nick,i->second->nick,i->second->server,b);
1029                 WriteServ(user->fd,"369 %s %s :End of WHOWAS",user->nick,parameters[0]);
1030         }
1031
1032 }
1033
1034 void handle_trace(char **parameters, int pcnt, userrec *user)
1035 {
1036         for (user_hash::iterator i = clientlist.begin(); i != clientlist.end(); i++)
1037         {
1038                 if (i->second)
1039                 {
1040                         if (isnick(i->second->nick))
1041                         {
1042                                 if (strchr(i->second->modes,'o'))
1043                                 {
1044                                         WriteServ(user->fd,"205 %s :Oper 0 %s",user->nick,i->second->nick);
1045                                 }
1046                                 else
1047                                 {
1048                                         WriteServ(user->fd,"204 %s :User 0 %s",user->nick,i->second->nick);
1049                                 }
1050                         }
1051                         else
1052                         {
1053                                 WriteServ(user->fd,"203 %s :???? 0 [%s]",user->nick,i->second->host);
1054                         }
1055                 }
1056         }
1057 }
1058
1059 void handle_modules(char **parameters, int pcnt, userrec *user)
1060 {
1061         for (int i = 0; i < module_names.size(); i++)
1062         {
1063                         Version V = modules[i]->GetVersion();
1064                         char modulename[MAXBUF];
1065                         strncpy(modulename,module_names[i].c_str(),256);
1066                         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));
1067         }
1068 }
1069
1070 void handle_stats(char **parameters, int pcnt, userrec *user)
1071 {
1072         if (pcnt != 1)
1073         {
1074                 return;
1075         }
1076         if (strlen(parameters[0])>1)
1077         {
1078                 /* make the stats query 1 character long */
1079                 parameters[0][1] = '\0';
1080         }
1081
1082         if (!strcmp(parameters[0],"k"))
1083         {
1084                 stats_k(user);
1085         }
1086
1087         if (!strcmp(parameters[0],"g"))
1088         {
1089                 stats_g(user);
1090         }
1091
1092         if (!strcmp(parameters[0],"q"))
1093         {
1094                 stats_q(user);
1095         }
1096
1097         if (!strcmp(parameters[0],"Z"))
1098         {
1099                 stats_z(user);
1100         }
1101
1102         /* stats m (list number of times each command has been used, plus bytecount) */
1103         if (!strcmp(parameters[0],"m"))
1104         {
1105                 for (int i = 0; i < cmdlist.size(); i++)
1106                 {
1107                         if (cmdlist[i].handler_function)
1108                         {
1109                                 if (cmdlist[i].use_count)
1110                                 {
1111                                         /* RPL_STATSCOMMANDS */
1112                                         WriteServ(user->fd,"212 %s %s %d %d",user->nick,cmdlist[i].command,cmdlist[i].use_count,cmdlist[i].total_bytes);
1113                                 }
1114                         }
1115                 }
1116
1117         }
1118
1119         /* stats z (debug and memory info) */
1120         if (!strcmp(parameters[0],"z"))
1121         {
1122                 WriteServ(user->fd,"249 %s :Users(HASH_MAP) %d (%d bytes, %d buckets)",user->nick,clientlist.size(),clientlist.size()*sizeof(userrec),clientlist.bucket_count());
1123                 WriteServ(user->fd,"249 %s :Channels(HASH_MAP) %d (%d bytes, %d buckets)",user->nick,chanlist.size(),chanlist.size()*sizeof(chanrec),chanlist.bucket_count());
1124                 WriteServ(user->fd,"249 %s :Commands(VECTOR) %d (%d bytes)",user->nick,cmdlist.size(),cmdlist.size()*sizeof(command_t));
1125                 WriteServ(user->fd,"249 %s :MOTD(VECTOR) %d, RULES(VECTOR) %d",user->nick,MOTD.size(),RULES.size());
1126                 WriteServ(user->fd,"249 %s :address_cache(HASH_MAP) %d (%d buckets)",user->nick,IP.size(),IP.bucket_count());
1127                 WriteServ(user->fd,"249 %s :Modules(VECTOR) %d (%d)",user->nick,modules.size(),modules.size()*sizeof(Module));
1128                 WriteServ(user->fd,"249 %s :ClassFactories(VECTOR) %d (%d)",user->nick,factory.size(),factory.size()*sizeof(ircd_module));
1129                 WriteServ(user->fd,"249 %s :Ports(STATIC_ARRAY) %d",user->nick,boundPortCount);
1130         }
1131
1132         /* stats o */
1133         if (!strcmp(parameters[0],"o"))
1134         {
1135                 for (int i = 0; i < ConfValueEnum("oper",&config_f); i++)
1136                 {
1137                         char LoginName[MAXBUF];
1138                         char HostName[MAXBUF];
1139                         char OperType[MAXBUF];
1140                         ConfValue("oper","name",i,LoginName,&config_f);
1141                         ConfValue("oper","host",i,HostName,&config_f);
1142                         ConfValue("oper","type",i,OperType,&config_f);
1143                         WriteServ(user->fd,"243 %s O %s * %s %s 0",user->nick,HostName,LoginName,OperType);
1144                 }
1145         }
1146
1147         /* stats l (show user I/O stats) */
1148         if (!strcmp(parameters[0],"l"))
1149         {
1150                 WriteServ(user->fd,"211 %s :server:port nick bytes_in cmds_in bytes_out cmds_out",user->nick);
1151                 for (user_hash::iterator i = clientlist.begin(); i != clientlist.end(); i++)
1152                 {
1153                         if (isnick(i->second->nick))
1154                         {
1155                                 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);
1156                         }
1157                         else
1158                         {
1159                                 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);
1160                         }
1161
1162                 }
1163         }
1164
1165         /* stats u (show server uptime) */
1166         if (!strcmp(parameters[0],"u"))
1167         {
1168                 time_t current_time = 0;
1169                 current_time = time(NULL);
1170                 time_t server_uptime = current_time - startup_time;
1171                 struct tm* stime;
1172                 stime = gmtime(&server_uptime);
1173                 /* i dont know who the hell would have an ircd running for over a year nonstop, but
1174                  * Craig suggested this, and it seemed a good idea so in it went */
1175                 if (stime->tm_year > 70)
1176                 {
1177                         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);
1178                 }
1179                 else
1180                 {
1181                         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);
1182                 }
1183         }
1184
1185         WriteServ(user->fd,"219 %s %s :End of /STATS report",user->nick,parameters[0]);
1186         WriteOpers("*** Notice: Stats '%s' requested by %s (%s@%s)",parameters[0],user->nick,user->ident,user->host);
1187
1188 }
1189
1190 void handle_connect(char **parameters, int pcnt, userrec *user)
1191 {
1192         char Link_ServerName[1024];
1193         char Link_IPAddr[1024];
1194         char Link_Port[1024];
1195         char Link_Pass[1024];
1196         int LinkPort;
1197         bool found = false;
1198
1199         for (int i = 0; i < ConfValueEnum("link",&config_f); i++)
1200         {
1201                 if (!found)
1202                 {
1203                         ConfValue("link","name",i,Link_ServerName,&config_f);
1204                         ConfValue("link","ipaddr",i,Link_IPAddr,&config_f);
1205                         ConfValue("link","port",i,Link_Port,&config_f);
1206                         ConfValue("link","sendpass",i,Link_Pass,&config_f);
1207                         log(DEBUG,"(%d) Comparing against name='%s', ipaddr='%s', port='%s', recvpass='%s'",i,Link_ServerName,Link_IPAddr,Link_Port,Link_Pass);
1208                         LinkPort = atoi(Link_Port);
1209                         if (match(Link_ServerName,parameters[0])) {
1210                                 found = true;
1211                                 break;
1212                         }
1213                 }
1214         }
1215
1216         if (!found) {
1217                 WriteServ(user->fd,"NOTICE %s :*** Failed to connect to %s: No servers matching this pattern are configured for linking.",user->nick,parameters[0]);
1218                 return;
1219         }
1220
1221         // TODO: Perform a check here to stop a server being linked twice!
1222
1223         WriteServ(user->fd,"NOTICE %s :*** Connecting to %s (%s) port %s...",user->nick,Link_ServerName,Link_IPAddr,Link_Port);
1224
1225         if (me[defaultRoute])
1226         {
1227                 me[defaultRoute]->BeginLink(Link_IPAddr,LinkPort,Link_Pass,Link_ServerName,me[defaultRoute]->port);
1228                 return;
1229         }
1230         else
1231         {
1232                 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);
1233         }
1234 }
1235
1236 void handle_squit(char **parameters, int pcnt, userrec *user)
1237 {
1238         // send out an squit across the mesh and then clear the server list (for local squit)
1239         if (!pcnt)
1240         {
1241                 WriteOpers("SQUIT command issued by %s",user->nick);
1242                 char buffer[MAXBUF];
1243                 snprintf(buffer,MAXBUF,"& %s",ServerName);
1244                 NetSendToAll(buffer);
1245                 DoSplitEveryone();
1246         }
1247         else
1248         {
1249                 WriteServ(user->fd,"NOTICE :*** Remote SQUIT not supported yet.");
1250         }
1251 }
1252
1253 void handle_links(char **parameters, int pcnt, userrec *user)
1254 {
1255         WriteServ(user->fd,"364 %s %s %s :0 %s",user->nick,ServerName,ServerName,ServerDesc);
1256         for (int j = 0; j < 32; j++)
1257         {
1258                 if (me[j] != NULL)
1259                 {
1260                         for (int k = 0; k < me[j]->connectors.size(); k++)
1261                         {
1262                                 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());
1263                         }
1264                 }
1265         }
1266         WriteServ(user->fd,"365 %s * :End of /LINKS list.",user->nick);
1267 }
1268
1269 void handle_map(char **parameters, int pcnt, userrec *user)
1270 {
1271         char line[MAXBUF];
1272         snprintf(line,MAXBUF,"006 %s :%s",user->nick,ServerName);
1273         while (strlen(line) < 50)
1274                 strcat(line," ");
1275         WriteServ(user->fd,"%s%d (%.2f%%)",line,local_count(),(float)(((float)local_count()/(float)usercnt())*100));
1276         for (int j = 0; j < 32; j++)
1277         {
1278                 if (me[j] != NULL)
1279                 {
1280                         for (int k = 0; k < me[j]->connectors.size(); k++)
1281                         {
1282                                 snprintf(line,MAXBUF,"006 %s :%c-%s",user->nick,islast(me[j]->connectors[k].GetServerName().c_str()),me[j]->connectors[k].GetServerName().c_str());
1283                                 while (strlen(line) < 50)
1284                                         strcat(line," ");
1285                                 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));
1286                         }
1287                 }
1288         }
1289         WriteServ(user->fd,"007 %s :End of /MAP",user->nick);
1290 }
1291
1292 bool is_uline(const char* server)
1293 {
1294         char ServName[MAXBUF];
1295         int i,j;
1296
1297         for (int i = 0; i < ConfValueEnum("uline",&config_f); i++)
1298         {
1299                 ConfValue("uline","server",i,ServName,&config_f);
1300                 if (!strcasecmp(server,ServName))
1301                 {
1302                         return true;
1303                 }
1304         }
1305         return false;
1306 }
1307
1308
1309 void handle_oper(char **parameters, int pcnt, userrec *user)
1310 {
1311         char LoginName[MAXBUF];
1312         char Password[MAXBUF];
1313         char OperType[MAXBUF];
1314         char TypeName[MAXBUF];
1315         char Hostname[MAXBUF];
1316         int i,j;
1317
1318         for (int i = 0; i < ConfValueEnum("oper",&config_f); i++)
1319         {
1320                 ConfValue("oper","name",i,LoginName,&config_f);
1321                 ConfValue("oper","password",i,Password,&config_f);
1322                 if ((!strcmp(LoginName,parameters[0])) && (!strcmp(Password,parameters[1])))
1323                 {
1324                         /* correct oper credentials */
1325                         ConfValue("oper","type",i,OperType,&config_f);
1326                         WriteOpers("*** %s (%s@%s) is now an IRC operator of type %s",user->nick,user->ident,user->host,OperType);
1327                         WriteServ(user->fd,"381 %s :You are now an IRC operator of type %s",user->nick,OperType);
1328                         WriteServ(user->fd,"MODE %s :+o",user->nick);
1329                         char global[MAXBUF];
1330                         snprintf(global,MAXBUF,"M %s +o",user->nick);
1331                         NetSendToAll(global);
1332                         for (j =0; j < ConfValueEnum("type",&config_f); j++)
1333                         {
1334                                 ConfValue("type","name",j,TypeName,&config_f);
1335                                 if (!strcmp(TypeName,OperType))
1336                                 {
1337                                         /* found this oper's opertype */
1338                                         ConfValue("type","host",j,Hostname,&config_f);
1339                                         ChangeDisplayedHost(user,Hostname);
1340                                 }
1341                         }
1342                         if (!strchr(user->modes,'o'))
1343                         {
1344                                 strcat(user->modes,"o");
1345                         }
1346                         FOREACH_MOD OnOper(user);
1347                         return;
1348                 }
1349         }
1350         /* no such oper */
1351         WriteServ(user->fd,"491 %s :Invalid oper credentials",user->nick);
1352         WriteOpers("*** WARNING! Failed oper attempt by %s!%s@%s!",user->nick,user->ident,user->host);
1353 }
1354
1355 void handle_nick(char **parameters, int pcnt, userrec *user)
1356 {
1357         if (pcnt < 1)
1358         {
1359                 log(DEBUG,"not enough params for handle_nick");
1360                 return;
1361         }
1362         if (!parameters[0])
1363         {
1364                 log(DEBUG,"invalid parameter passed to handle_nick");
1365                 return;
1366         }
1367         if (!strlen(parameters[0]))
1368         {
1369                 log(DEBUG,"zero length new nick passed to handle_nick");
1370                 return;
1371         }
1372         if (!user)
1373         {
1374                 log(DEBUG,"invalid user passed to handle_nick");
1375                 return;
1376         }
1377         if (!user->nick)
1378         {
1379                 log(DEBUG,"invalid old nick passed to handle_nick");
1380                 return;
1381         }
1382         if (!strcasecmp(user->nick,parameters[0]))
1383         {
1384                 log(DEBUG,"old nick is new nick, skipping");
1385                 return;
1386         }
1387         else
1388         {
1389                 if (strlen(parameters[0]) > 1)
1390                 {
1391                         if (parameters[0][0] == ':')
1392                         {
1393                                 *parameters[0]++;
1394                         }
1395                 }
1396                 if (matches_qline(parameters[0]))
1397                 {
1398                         WriteOpers("*** Q-Lined nickname %s from %s!%s@%s: %s",parameters[0],user->nick,user->ident,user->host,matches_qline(parameters[0]));
1399                         WriteServ(user->fd,"432 %s %s :Invalid nickname: %s",user->nick,parameters[0],matches_qline(parameters[0]));
1400                         return;
1401                 }
1402                 if ((Find(parameters[0])) && (Find(parameters[0]) != user))
1403                 {
1404                         WriteServ(user->fd,"433 %s %s :Nickname is already in use.",user->nick,parameters[0]);
1405                         return;
1406                 }
1407         }
1408         if (isnick(parameters[0]) == 0)
1409         {
1410                 WriteServ(user->fd,"432 %s %s :Erroneous Nickname",user->nick,parameters[0]);
1411                 return;
1412         }
1413
1414         if (user->registered == 7)
1415         {
1416                 int MOD_RESULT = 0;
1417                 FOREACH_RESULT(OnUserPreNick(user,parameters[0]));
1418                 if (MOD_RESULT) {
1419                         // if a module returns true, the nick change is silently forbidden.
1420                         return;
1421                 }
1422
1423                 WriteCommon(user,"NICK %s",parameters[0]);
1424
1425                 // Q token must go to ALL servers!!!
1426                 char buffer[MAXBUF];
1427                 snprintf(buffer,MAXBUF,"n %s %s",user->nick,parameters[0]);
1428                 NetSendToAll(buffer);
1429
1430         }
1431
1432         /* change the nick of the user in the users_hash */
1433         user = ReHashNick(user->nick, parameters[0]);
1434         /* actually change the nick within the record */
1435         if (!user) return;
1436         if (!user->nick) return;
1437
1438         strncpy(user->nick, parameters[0],NICKMAX);
1439
1440         log(DEBUG,"new nick set: %s",user->nick);
1441
1442         if (user->registered < 3)
1443                 user->registered = (user->registered | 2);
1444         if (user->registered == 3)
1445         {
1446                 /* user is registered now, bit 0 = USER command, bit 1 = sent a NICK command */
1447                 ConnectUser(user);
1448         }
1449 }
1450
1451
1452
1453 void handle_V(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
1454 {
1455         char* src = strtok(params," ");
1456         char* dest = strtok(NULL," :");
1457         char* text = strtok(NULL,"\r\n");
1458         text++;
1459
1460         userrec* user = Find(src);
1461         if (user)
1462         {
1463                 userrec* dst = Find(dest);
1464
1465                 if (dst)
1466                 {
1467                         WriteTo(user, dst, "NOTICE %s :%s", dst->nick, text);
1468                 }
1469                 else
1470                 {
1471                         chanrec* d = FindChan(dest);
1472                         if (d)
1473                         {
1474                                 ChanExceptSender(d, user, "NOTICE %s :%s", d->name, text);
1475                         }
1476                 }
1477         }
1478
1479 }
1480
1481
1482 void handle_P(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
1483 {
1484         char* src = strtok(params," ");
1485         char* dest = strtok(NULL," :");
1486         char* text = strtok(NULL,"\r\n");
1487         text++;
1488
1489         userrec* user = Find(src);
1490         if (user)
1491         {
1492                 userrec* dst = Find(dest);
1493
1494                 if (dst)
1495                 {
1496                         WriteTo(user, dst, "PRIVMSG %s :%s", dst->nick, text);
1497                 }
1498                 else
1499                 {
1500                         chanrec* d = FindChan(dest);
1501                         if (d)
1502                         {
1503                                 ChanExceptSender(d, user, "PRIVMSG %s :%s", d->name, text);
1504                         }
1505                 }
1506         }
1507
1508 }
1509
1510 void handle_i(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
1511 {
1512         char* nick = strtok(params," ");
1513         char* from = strtok(NULL," ");
1514         char* channel = strtok(NULL," ");
1515         userrec* u = Find(nick);
1516         userrec* user = Find(from);
1517         chanrec* c = FindChan(channel);
1518         if ((c) && (u) && (user))
1519         {
1520                 u->InviteTo(c->name);
1521                 WriteFrom(u->fd,user,"INVITE %s :%s",u->nick,c->name);
1522         }
1523 }
1524
1525 void handle_t(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
1526 {
1527         char* setby = strtok(params," ");
1528         char* channel = strtok(NULL," :");
1529         char* topic = strtok(NULL,"\r\n");
1530         topic++;
1531         userrec* u = Find(setby);
1532         chanrec* c = FindChan(channel);
1533         if ((c) && (u))
1534         {
1535                 WriteChannelLocal(c,u,"TOPIC %s :%s",c->name,topic);
1536                 strncpy(c->topic,topic,MAXTOPIC);
1537                 strncpy(c->setby,u->nick,NICKMAX);
1538                 c->topicset = time(NULL);
1539         }
1540 }
1541
1542
1543 void handle_T(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
1544 {
1545         char* tm = strtok(params," ");
1546         char* setby = strtok(NULL," ");
1547         char* channel = strtok(NULL," :");
1548         char* topic = strtok(NULL,"\r\n");
1549         topic++;
1550         time_t TS = atoi(tm);
1551         chanrec* c = FindChan(channel);
1552         if (c)
1553         {
1554                 // in the case of topics and TS, the *NEWER*
1555                 if (TS <= c->topicset)
1556                 {
1557                         WriteChannelLocal(c,NULL,"TOPIC %s :%s",c->name,topic);
1558                         strncpy(c->topic,topic,MAXTOPIC);
1559                         strncpy(c->setby,setby,NICKMAX);
1560                 }
1561         }
1562 }
1563
1564 void handle_M(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
1565 {
1566         char* pars[128];
1567         char original[MAXBUF],target[MAXBUF];
1568         strncpy(original,params,MAXBUF);
1569         int index = 0;
1570         char* parameter = strtok(params," ");
1571         strncpy(target,parameter,MAXBUF);
1572         while (parameter)
1573         {
1574                 if (parameter[0] == ':')
1575                         parameter++;
1576                 pars[index++] = parameter;
1577                 parameter = strtok(NULL," ");
1578         }
1579         log(DEBUG,"*** MODE: %s %s",pars[0],pars[1]);
1580         merge_mode(pars,index);
1581         if (FindChan(target))
1582         {
1583                 WriteChannelLocal(FindChan(target), NULL, "MODE %s",original);
1584         }
1585         if (Find(target))
1586         {
1587                 Write(Find(target)->fd,":%s MODE %s",ServerName,original);
1588         }
1589 }
1590
1591 // m is modes set by users only (not servers) valid targets are channels or users.
1592
1593 void handle_m(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
1594 {
1595         // m blah #chatspike +b *!test@*4
1596         char* pars[128];
1597         char original[MAXBUF];
1598         strncpy(original,params,MAXBUF);
1599
1600         if (!strchr(params,' '))
1601         {
1602                 WriteOpers("WARNING! 'm' token in data stream without any parameters! Something fishy is going on!");
1603                 return;
1604         }
1605
1606         int index = 0;
1607
1608         char* src = strtok(params," ");
1609         userrec* user = Find(src);
1610
1611         if (user)
1612         {
1613                 log(DEBUG,"Found user: %s",user->nick);
1614                 char* parameter = strtok(NULL," ");
1615                 while (parameter)
1616                 {
1617                         pars[index++] = parameter;
1618                         parameter = strtok(NULL," ");
1619                 }
1620
1621                 log(DEBUG,"Calling merge_mode2");
1622                 merge_mode2(pars,index,user);
1623         }
1624 }
1625
1626
1627 void handle_L(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
1628 {
1629         char* nick = strtok(params," ");
1630         char* channel = strtok(NULL," :");
1631         char* reason = strtok(NULL,"\r\n");
1632         userrec* user = Find(nick);
1633         reason++;
1634         if (user)
1635         {
1636                 if (strcmp(reason,""))
1637                 {
1638                         del_channel(user,channel,reason,true);
1639                 }
1640                 else
1641                 {
1642                         del_channel(user,channel,NULL,true);
1643                 }
1644         }
1645 }
1646
1647 void handle_K(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
1648 {
1649         char* src = strtok(params," ");
1650         char* nick = strtok(NULL," :");
1651         char* reason = strtok(NULL,"\r\n");
1652         char kreason[MAXBUF];
1653         reason++;
1654
1655         userrec* u = Find(nick);
1656         userrec* user = Find(src);
1657
1658         if ((user) && (u))
1659         {
1660                 WriteTo(user, u, "KILL %s :%s!%s!%s!%s (%s)", u->nick, source->name, ServerName, user->dhost,user->nick,reason);
1661                 WriteOpers("*** Remote kill from %s by %s: %s!%s@%s (%s)",source->name,user->nick,u->nick,u->ident,u->host,reason);
1662                 snprintf(kreason,MAXBUF,"[%s] Killed (%s (%s))",source->name,user->nick,reason);
1663                 kill_link(u,kreason);
1664         }
1665 }
1666
1667 void handle_Q(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
1668 {
1669         char* nick = strtok(params," :");
1670         char* reason = strtok(NULL,"\r\n");
1671         reason++;
1672
1673         userrec* user = Find(nick);
1674
1675         if (user)
1676         {
1677                 if (strlen(reason)>MAXQUIT)
1678                 {
1679                         reason[MAXQUIT-1] = '\0';
1680                 }
1681
1682
1683                 WriteCommonExcept(user,"QUIT :%s",reason);
1684
1685                 user_hash::iterator iter = clientlist.find(user->nick);
1686
1687                 if (iter != clientlist.end())
1688                 {
1689                         log(DEBUG,"deleting user hash value %d",iter->second);
1690                         if ((iter->second) && (user->registered == 7)) {
1691                                 delete iter->second;
1692                         }
1693                         clientlist.erase(iter);
1694                 }
1695
1696                 purge_empty_chans();
1697         }
1698 }
1699
1700 void handle_n(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
1701 {
1702         char* oldnick = strtok(params," ");
1703         char* newnick = strtok(NULL," ");
1704
1705         userrec* user = Find(oldnick);
1706
1707         if (user)
1708         {
1709                 WriteCommon(user,"NICK %s",newnick);
1710                 if (is_uline(tcp_host))
1711                 {
1712                         int MOD_RESULT = 0;
1713                         FOREACH_RESULT(OnUserPreNick(user,newnick));
1714                         if (MOD_RESULT) {
1715                                 // if a module returns true, the nick change couldnt be allowed
1716                                 kill_link(user,"Nickname collision");
1717                                 return;
1718                         }
1719                         if (matches_qline(newnick))
1720                         {
1721                                 kill_link(user,"Nickname collision");
1722                                 return;
1723                         }
1724
1725                         // broadcast this because its a services thingy
1726                         char buffer[MAXBUF];
1727                         snprintf(buffer,MAXBUF,"n %s %s",user->nick,newnick);
1728                         NetSendToAll(buffer);
1729                 }
1730                 user = ReHashNick(user->nick, newnick);
1731                 if (!user) return;
1732                 if (!user->nick) return;
1733                 strncpy(user->nick, newnick,NICKMAX);
1734                 log(DEBUG,"new nick set: %s",user->nick);
1735         }
1736 }
1737
1738 // k <SOURCE> <DEST> <CHANNEL> :<REASON>
1739 void handle_k(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
1740 {
1741         char* src = strtok(params," ");
1742         char* dest = strtok(NULL," ");
1743         char* channel = strtok(NULL," :");
1744         char* reason = strtok(NULL,"\r\n");
1745         reason++;
1746         userrec* s = Find(src);
1747         userrec* d = Find(dest);
1748         chanrec* c = FindChan(channel);
1749         if ((s) && (d) && (c))
1750         {
1751                 kick_channel(s,d,c,reason);
1752                 return;
1753         }
1754         d = Find(channel);
1755         c = FindChan(dest);
1756         if ((s) && (d) && (c))
1757         {
1758                 kick_channel(s,d,c,reason);
1759                 return;
1760         }
1761 }
1762
1763 void handle_AT(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
1764 {
1765         char* who = strtok(params," :");
1766         char* text = strtok(NULL,"\r\n");
1767         text++;
1768         userrec* s = Find(who);
1769         if (s)
1770         {
1771                 WriteWallOps(s,true,text);
1772         }
1773 }
1774
1775 void handle_H(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
1776 {
1777         log(DEBUG,"Adding ULined server %s to my map",params);
1778         ircd_connector s;
1779         s.SetState(STATE_DISCONNECTED);
1780         s.SetServerName(params);
1781         source->connectors.push_back(s);
1782         WriteOpers("Non-Mesh server %s has joined the network",params);
1783 }
1784
1785 void handle_N(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
1786 {
1787         char* tm = strtok(params," ");
1788         char* nick = strtok(NULL," ");
1789         char* host = strtok(NULL," ");
1790         char* dhost = strtok(NULL," ");
1791         char* ident = strtok(NULL," ");
1792         char* modes = strtok(NULL," ");
1793         char* server = strtok(NULL," :");
1794         char* gecos = strtok(NULL,"\r\n");
1795         gecos++;
1796         modes++;
1797         time_t TS = atoi(tm);
1798         user_hash::iterator iter = clientlist.find(nick);
1799         if (iter != clientlist.end())
1800         {
1801                 // nick collision
1802                 WriteOpers("Nickname collision: %s@%s != %s@%s",nick,server,iter->second->nick,iter->second->server);
1803                 char str[MAXBUF];
1804                 snprintf(str,MAXBUF,"Killed (Nick Collision (%s@%s < %s@%s))",nick,server,iter->second->nick,iter->second->server);
1805                 WriteServ(iter->second->fd, "KILL %s :%s",iter->second->nick,str);
1806                 kill_link(iter->second,str);
1807         }
1808         clientlist[nick] = new userrec();
1809         // remote users have an fd of -1. This is so that our Write abstraction
1810         // routines know to route any messages to this record away to whatever server
1811         // theyre on.
1812         clientlist[nick]->fd = -1;
1813         strncpy(clientlist[nick]->nick, nick,NICKMAX);
1814         strncpy(clientlist[nick]->host, host,160);
1815         strncpy(clientlist[nick]->dhost, dhost,160);
1816         strncpy(clientlist[nick]->server, server,256);
1817         strncpy(clientlist[nick]->ident, ident,10); // +1 char to compensate for tilde
1818         strncpy(clientlist[nick]->fullname, gecos,128);
1819         clientlist[nick]->signon = TS;
1820         clientlist[nick]->nping = 0; // this is ignored for a remote user anyway.
1821         clientlist[nick]->lastping = 1;
1822         clientlist[nick]->port = 0; // so is this...
1823         clientlist[nick]->registered = 7; // this however we need to set for them to receive messages and appear online
1824         clientlist[nick]->idle_lastmsg = time(NULL); // this is unrealiable and wont actually be used locally
1825         for (int i = 0; i < MAXCHANS; i++)
1826         {
1827                 clientlist[nick]->chans[i].channel = NULL;
1828                 clientlist[nick]->chans[i].uc_modes = 0;
1829         }
1830 }
1831
1832 void handle_F(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
1833 {
1834         long tdiff = time(NULL) - atoi(params);
1835         if (tdiff)
1836                 WriteOpers("TS split for %s -> %s: %d",source->name,reply->name,tdiff);
1837 }
1838
1839 void handle_a(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
1840 {
1841         char* nick = strtok(params," :");
1842         char* gecos = strtok(NULL,"\r\n");
1843
1844         userrec* user = Find(nick);
1845
1846         if (user)
1847                 strncpy(user->fullname,gecos,MAXBUF);
1848 }
1849
1850 void handle_b(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
1851 {
1852         char* nick = strtok(params," ");
1853         char* host = strtok(NULL," ");
1854
1855         userrec* user = Find(nick);
1856
1857         if (user)
1858                 strncpy(user->dhost,host,160);
1859 }
1860
1861 void handle_plus(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
1862 {
1863         // %s %s %d %d
1864         // + test3.chatspike.net 7010 -2016508415
1865         char* servername = strtok(params," ");
1866         char* ipaddr = strtok(NULL," ");
1867         char* ipport = strtok(NULL," ");
1868         char* cookie = strtok(NULL," ");
1869         log(DEBUG,"*** Connecting back to %s:%d",ipaddr,atoi(ipport));
1870
1871
1872         bool conn_already = false;
1873         for (int i = 0; i < 32; i++)
1874         {
1875                 if (me[i] != NULL)
1876                 {
1877                         for (int j = 0; j < me[i]->connectors.size(); j++)
1878                         {
1879                                 if (!strcasecmp(me[i]->connectors[j].GetServerName().c_str(),servername))
1880                                 {
1881                                         if (me[i]->connectors[j].GetServerPort() == atoi(ipport))
1882                                         {
1883                                                 log(DEBUG,"Already got a connection to %s:%d, ignoring +",ipaddr,atoi(ipport));
1884                                                 conn_already = true;
1885                                         }
1886                                 }
1887                         }
1888                 }
1889         }
1890         if (!conn_already)
1891                 me[defaultRoute]->MeshCookie(ipaddr,atoi(ipport),atoi(cookie),servername);
1892 }
1893
1894 void handle_R(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
1895 {
1896         char* server = strtok(params," ");
1897         char* data = strtok(NULL,"\r\n");
1898         if ((!data) || (!server))
1899         {
1900                 log(DEBUG,"Someones playing silly buggers, attempting to send to a null server or send a null message (BUG?)");
1901                 return;
1902         }
1903
1904         log(DEBUG,"Forwarded packet '%s' to '%s'",data,server);
1905         NetSendToOne(server,data);
1906 }
1907
1908 void handle_J(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
1909 {
1910         // IMPORTANT NOTE
1911         // The J token currently has no timestamp - this needs looking at
1912         // because it will allow splitriding.
1913         char* nick = strtok(params," ");
1914         char* channel = strtok(NULL," ");
1915         userrec* user = Find(nick);
1916         while (channel)
1917         {
1918                 if ((user != NULL) && (strcmp(channel,"")))
1919                 {
1920                         char privilage = '\0';
1921                         if (channel[0] != '#')
1922                         {
1923                                 privilage = channel[0];
1924                                 channel++;
1925                         }
1926                         add_channel(user,channel,"",true);
1927
1928                         // now work out the privilages they should have on each channel
1929                         // and send the appropriate servermodes.
1930                         for (int i = 0; i != MAXCHANS; i++)
1931                         {
1932                                 if (user->chans[i].channel)
1933                                 {
1934                                         if (!strcasecmp(user->chans[i].channel->name,channel))
1935                                         {
1936                                                 if (privilage == '@')
1937                                                 {
1938                                                         user->chans[i].uc_modes = user->chans[i].uc_modes | UCMODE_OP;
1939                                                         WriteChannelLocal(user->chans[i].channel, NULL, "MODE %s +o %s",channel,user->nick);
1940                                                 }
1941                                                 if (privilage == '%')
1942                                                 {
1943                                                         user->chans[i].uc_modes = user->chans[i].uc_modes | UCMODE_HOP;
1944                                                         WriteChannelLocal(user->chans[i].channel, NULL, "MODE %s +h %s",channel,user->nick);
1945                                                 }
1946                                                 if (privilage == '+')
1947                                                 {
1948                                                         user->chans[i].uc_modes = user->chans[i].uc_modes | UCMODE_VOICE;
1949                                                         WriteChannelLocal(user->chans[i].channel, NULL, "MODE %s +v %s",channel,user->nick);
1950                                                 }
1951                                         }
1952                                 }
1953                         }
1954
1955                 }
1956                 channel = strtok(NULL," ");
1957         }
1958 }
1959
1960 void handle_dollar(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
1961 {
1962         log(DEBUG,"Storing routing table...");
1963         char* sourceserver = strtok(params," ");
1964         char* server = strtok(NULL," ");
1965         for (int i = 0; i < 32; i++)
1966         {
1967                 if (me[i] != NULL)
1968                 {
1969                         for (int j = 0; j < me[i]->connectors.size(); j++)
1970                         {
1971                                 if (!strcasecmp(me[i]->connectors[j].GetServerName().c_str(),sourceserver))
1972                                 {
1973                                         me[i]->connectors[j].routes.clear();
1974                                         log(DEBUG,"Found entry for source server.");
1975                                         while (server)
1976                                         {
1977                                                 // store each route
1978                                                 me[i]->connectors[j].routes.push_back(server);
1979                                                 log(DEBUG,"*** Stored route: %s -> %s -> %s",ServerName,sourceserver,server);
1980                                                 server = strtok(NULL," ");
1981                                         }
1982                                         return;
1983                                 }
1984                         }
1985                 }
1986         }
1987         log(DEBUG,"Warning! routing table received from nonexistent server!");
1988 }
1989
1990 void handle_amp(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
1991 {
1992         log(DEBUG,"Netsplit! %s split from mesh, removing!",params);
1993         WriteOpers("*** NOTICE - Controlled netsplit: %s split from %s",params,ServerName);
1994         bool go_again = true;
1995         while (go_again)
1996         {
1997                 go_again = false;
1998                 for (int i = 0; i < 32; i++)
1999                 {
2000                         if (me[i] != NULL)
2001                         {
2002                                 for (vector<ircd_connector>::iterator j = me[i]->connectors.begin(); j != me[i]->connectors.end(); j++)
2003                                 {
2004                                         if (!strcasecmp(j->GetServerName().c_str(),params))
2005                                         {
2006                                                 j->routes.clear();
2007                                                 j->CloseConnection();
2008                                                 me[i]->connectors.erase(j);
2009                                                 go_again = true;
2010                                                 break;
2011                                         }
2012                                 }
2013                         }
2014                 }
2015         }
2016         log(DEBUG,"Removed server. Will remove clients...");
2017         // iterate through the userlist and remove all users on this server.
2018         // because we're dealing with a mesh, we dont have to deal with anything
2019         // "down-route" from this server (nice huh)
2020         go_again = true;
2021         char reason[MAXBUF];
2022         snprintf(reason,MAXBUF,"%s %s",ServerName,params);
2023         while (go_again)
2024         {
2025                 go_again = false;
2026                 for (user_hash::const_iterator u = clientlist.begin(); u != clientlist.end(); u++)
2027                 {
2028                         if (!strcasecmp(u->second->server,params))
2029                         {
2030                                 kill_link(u->second,reason);
2031                                 go_again = true;
2032                                 break;
2033                         }
2034                 }
2035         }
2036 }
2037
2038 long authcookie;
2039
2040 void handle_hash(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2041 {
2042         // # <mask> <who-set-it> <time-set> <duration> :<reason>
2043         log(DEBUG,"Adding G-line");
2044         char* mask = strtok(params," ");
2045         char* who = strtok(NULL," ");
2046         char* create_time = strtok(NULL," ");
2047         char* duration = strtok(NULL," :");
2048         char* reason = strtok(NULL,"\r\n");
2049         add_gline(atoi(duration),who,reason,mask);
2050         // we must update the creation time on this gline
2051         // now that we've added it, or it wont expire at the right time.
2052         gline_set_creation_time(mask,atoi(create_time));
2053         if (!atoi(duration))
2054         {
2055                 WriteOpers("*** %s Added permenant G-Line on %s.",who,mask);
2056         }
2057         else
2058         {
2059                 WriteOpers("*** %s Added timed G-Line on %s to expire in %d seconds.",who,mask,atoi(duration));
2060         }
2061         apply_lines();
2062 }
2063
2064 void handle_dot(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2065 {
2066         log(DEBUG,"Removing G-line");
2067         char* mask = strtok(params," ");
2068         char* who = strtok(NULL," ");
2069         if (mask)
2070         {
2071                 if (del_gline(mask))
2072                 {
2073                         if (who)
2074                         {
2075                                 WriteOpers("*** %s Removed G-line on %s.",who,mask);
2076                         }
2077                 }
2078         }
2079 }
2080
2081 void handle_add_sqline(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2082 {
2083         // { <mask> <who-set-it> <time-set> <duration> :<reason>
2084         log(DEBUG,"Adding Q-line");
2085         char* mask = strtok(params," ");
2086         char* who = strtok(NULL," ");
2087         char* create_time = strtok(NULL," ");
2088         char* duration = strtok(NULL," :");
2089         char* reason = strtok(NULL,"\r\n");
2090         add_qline(atoi(duration),who,reason,mask);
2091         // we must update the creation time on this gline
2092         // now that we've added it, or it wont expire at the right time.
2093         qline_set_creation_time(mask,atoi(create_time));
2094         qline_make_global(mask);
2095         if (!atoi(duration))
2096         {
2097                 WriteOpers("*** %s Added permenant Q-Line on %s.",who,mask);
2098         }
2099         else
2100         {
2101                 WriteOpers("*** %s Added timed Q-Line on %s to expire in %d seconds.",who,mask,atoi(duration));
2102         }
2103         apply_lines();
2104 }
2105
2106 void handle_del_sqline(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2107 {
2108         log(DEBUG,"Removing Q-line");
2109         char* mask = strtok(params," ");
2110         char* who = strtok(NULL," ");
2111         if (mask)
2112         {
2113                 if (del_qline(mask))
2114                 {
2115                         if (who)
2116                         {
2117                                 WriteOpers("*** %s Removed Q-line on %s.",who,mask);
2118                         }
2119                 }
2120         }
2121 }
2122
2123 void handle_add_szline(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2124 {
2125         // } <mask> <who-set-it> <time-set> <duration> :<reason>
2126         log(DEBUG,"Adding Z-line");
2127         char* mask = strtok(params," ");
2128         char* who = strtok(NULL," ");
2129         char* create_time = strtok(NULL," ");
2130         char* duration = strtok(NULL," :");
2131         char* reason = strtok(NULL,"\r\n");
2132         add_zline(atoi(duration),who,reason,mask);
2133         // we must update the creation time on this gline
2134         // now that we've added it, or it wont expire at the right time.
2135         zline_set_creation_time(mask,atoi(create_time));
2136         zline_make_global(mask);
2137         if (!atoi(duration))
2138         {
2139                 WriteOpers("*** %s Added permenant Z-Line on %s.",who,mask);
2140         }
2141         else
2142         {
2143                 WriteOpers("*** %s Added timed Z-Line on %s to expire in %d seconds.",who,mask,atoi(duration));
2144         }
2145         apply_lines();
2146 }
2147
2148 void handle_del_szline(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2149 {
2150         log(DEBUG,"Removing Z-line");
2151         char* mask = strtok(params," ");
2152         char* who = strtok(NULL," ");
2153         if (mask)
2154         {
2155                 if (del_zline(mask))
2156                 {
2157                         if (who)
2158                         {
2159                                 WriteOpers("*** %s Removed Q-line on %s.",who,mask);
2160                         }
2161                 }
2162         }
2163 }
2164
2165
2166 void process_restricted_commands(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host,char* ipaddr,int port)
2167 {
2168         char buffer[MAXBUF];
2169
2170         switch(token)
2171         {
2172                 // Y <TS>
2173                 // start netburst
2174                 case 'Y':
2175                         nb_start = time(NULL);
2176                         WriteOpers("Server %s is starting netburst.",tcp_host);
2177                         // now broadcast this new servers address out to all servers that are linked to us,
2178                         // except the newcomer. They'll all attempt to connect back to it.
2179                         authcookie = rand()*rand();
2180                         snprintf(buffer,MAXBUF,"~ %d",authcookie);
2181                         NetSendToAll(buffer);
2182                 break;
2183                 // ~
2184                 // Store authcookie
2185                 // once stored, this authcookie permits other servers to log in
2186                 // without user or password, using it.
2187                 case '~':
2188                         auth_cookies.push_back(atoi(params));
2189                         log(DEBUG,"*** Stored auth cookie, will permit servers with auth-cookie %d",atoi(params));
2190                 break;
2191                 // connect back to a server using an authcookie
2192                 case '+':
2193                         handle_plus(token,params,source,reply,tcp_host);
2194                 break;
2195                 // routing table
2196                 case '$':
2197                         handle_dollar(token,params,source,reply,tcp_host);
2198                 break;
2199                 // node unreachable - we cant route to a server, sooooo we slit it off.
2200                 // servers can generate these for themselves for an squit.
2201                 case '&':
2202                         handle_amp(token,params,source,reply,tcp_host);
2203                 break;
2204                 // R <server> <data>
2205                 // redirect token, send all of <data> along to the given
2206                 // server as this server has been found to still have a route to it
2207                 case 'R':
2208                         handle_R(token,params,source,reply,tcp_host);
2209                 break;
2210                 // ?
2211                 // ping
2212                 case '?':
2213                         reply->SendPacket("!",tcp_host);
2214                 break;
2215                 // ?
2216                 // pong
2217                 case '!':
2218                 break;
2219                 // *
2220                 // no operation
2221                 case '*':
2222                 break;
2223                 // N <TS> <NICK> <HOST> <DHOST> <IDENT> <MODES> <SERVER> :<GECOS>
2224                 // introduce remote client
2225                 case 'N':
2226                         handle_N(token,params,source,reply,tcp_host);
2227                 break;
2228                 // a <NICK> :<GECOS>
2229                 // change GECOS (SETNAME)
2230                 case 'a':
2231                         handle_a(token,params,source,reply,tcp_host);
2232                 break;
2233                 // b <NICK> :<HOST>
2234                 // change displayed host (SETHOST)
2235                 case 'b':
2236                         handle_b(token,params,source,reply,tcp_host);
2237                 break;
2238                 // t <NICK> <CHANNEL> :<TOPIC>
2239                 // change a channel topic
2240                 case 't':
2241                         handle_t(token,params,source,reply,tcp_host);
2242                 break;
2243                 // i <NICK> <CHANNEL>
2244                 // invite a user to a channel
2245                 case 'i':
2246                         handle_i(token,params,source,reply,tcp_host);
2247                 break;
2248                 // k <SOURCE> <DEST> <CHANNEL> :<REASON>
2249                 // kick a user from a channel
2250                 case 'k':
2251                         handle_k(token,params,source,reply,tcp_host);
2252                 break;
2253                 // n <NICK> <NEWNICK>
2254                 // change nickname of client -- a server should only be able to
2255                 // change the nicknames of clients that reside on it unless
2256                 // they are ulined.
2257                 case 'n':
2258                         handle_n(token,params,source,reply,tcp_host);
2259                 break;
2260                 // J <NICK> <CHANLIST>
2261                 // Join user to channel list, merge channel permissions
2262                 case 'J':
2263                         handle_J(token,params,source,reply,tcp_host);
2264                 break;
2265                 // T <TS> <CHANNEL> <TOPICSETTER> :<TOPIC>
2266                 // change channel topic (netburst only)
2267                 case 'T':
2268                         handle_T(token,params,source,reply,tcp_host);
2269                 break;
2270                 // M <TARGET> <MODES> [MODE-PARAMETERS]
2271                 // Server setting modes on an object
2272                 case 'M':
2273                         handle_M(token,params,source,reply,tcp_host);
2274                 break;
2275                 // m <SOURCE> <TARGET> <MODES> [MODE-PARAMETERS]
2276                 // User setting modes on an object
2277                 case 'm':
2278                         handle_m(token,params,source,reply,tcp_host);
2279                 break;
2280                 // P <SOURCE> <TARGET> :<TEXT>
2281                 // Send a private/channel message
2282                 case 'P':
2283                         handle_P(token,params,source,reply,tcp_host);
2284                 break;
2285                 // V <SOURCE> <TARGET> :<TEXT>
2286                 // Send a private/channel notice
2287                 case 'V':
2288                         handle_V(token,params,source,reply,tcp_host);
2289                 break;
2290                 // L <SOURCE> <CHANNEL> :<REASON>
2291                 // User parting a channel
2292                 case 'L':
2293                         handle_L(token,params,source,reply,tcp_host);
2294                 break;
2295                 // Q <SOURCE> :<REASON>
2296                 // user quitting
2297                 case 'Q':
2298                         handle_Q(token,params,source,reply,tcp_host);
2299                 break;
2300                 // H <SERVER>
2301                 // introduce non-meshable server (such as a services server)
2302                 case 'H':
2303                         handle_H(token,params,source,reply,tcp_host);
2304                 break;
2305                 // K <SOURCE> <DEST> :<REASON>
2306                 // remote kill
2307                 case 'K':
2308                         handle_K(token,params,source,reply,tcp_host);
2309                 break;
2310                 // @ <SOURCE> :<TEXT>
2311                 // wallops
2312                 case '@':
2313                         handle_AT(token,params,source,reply,tcp_host);
2314                 break;
2315                 // # <mask> <who-set-it> <time-set> <duration> :<reason>
2316                 // add gline
2317                 case '#':
2318                         handle_hash(token,params,source,reply,tcp_host);
2319                 break;
2320                 // . <mask> <who>
2321                 // remove gline
2322                 case '.':
2323                         handle_dot(token,params,source,reply,tcp_host);
2324                 break;
2325                 // # <mask> <who-set-it> <time-set> <duration> :<reason>
2326                 // add gline
2327                 case '{':
2328                         handle_add_sqline(token,params,source,reply,tcp_host);
2329                 break;
2330                 // . <mask> <who>
2331                 // remove gline
2332                 case '[':
2333                         handle_del_sqline(token,params,source,reply,tcp_host);
2334                 break;
2335                 // # <mask> <who-set-it> <time-set> <duration> :<reason>
2336                 // add gline
2337                 case '}':
2338                         handle_add_szline(token,params,source,reply,tcp_host);
2339                 break;
2340                 // . <mask> <who>
2341                 // remove gline
2342                 case ']':
2343                         handle_del_szline(token,params,source,reply,tcp_host);
2344                 break;
2345                 // F <TS>
2346                 // end netburst
2347                 case 'F':
2348                         WriteOpers("Server %s has completed netburst. (%d secs)",tcp_host,time(NULL)-nb_start);
2349                         handle_F(token,params,source,reply,tcp_host);
2350                         nb_start = 0;
2351                         // tell all the other servers to use this authcookie to connect back again
2352                         // got '+ test3.chatspike.net 7010 -2016508415' from test.chatspike.net
2353                         snprintf(buffer,MAXBUF,"+ %s %s %d %d",tcp_host,ipaddr,port,authcookie);
2354                         NetSendToAllExcept(tcp_host,buffer);
2355                 break;
2356                 // F <TS>
2357                 // end netburst with no mesh creation
2358                 case 'f':
2359                         WriteOpers("Server %s has completed netburst. (%d secs)",tcp_host,time(NULL)-nb_start);
2360                         handle_F(token,params,source,reply,tcp_host);
2361                         nb_start = 0;
2362                         // tell everyone else about the new server name so they just add it in the disconnected
2363                         // state
2364                         snprintf(buffer,MAXBUF,"u %s :%s",tcp_host,GetServerDescription(tcp_host).c_str());
2365                         NetSendToAllExcept(tcp_host,buffer);
2366                 break;
2367                 // X <reserved>
2368                 // Send netburst now
2369                 case 'X':
2370                         WriteOpers("Sending my netburst to %s",tcp_host);
2371                         DoSync(source,tcp_host);
2372                         WriteOpers("Send of netburst to %s completed",tcp_host);
2373                         NetSendMyRoutingTable();
2374                 break;
2375                 // anything else
2376                 default:
2377                         WriteOpers("WARNING! Unknown datagram type '%c'",token);
2378                 break;
2379         }
2380 }
2381
2382
2383 void handle_link_packet(char* udp_msg, char* tcp_host, serverrec *serv)
2384 {
2385         if ((!strncmp(udp_msg,"USER ",5)) || (!strncmp(udp_msg,"NICK ",5)))
2386         {
2387                 // a user on a server port, just close their connection.
2388                 RemoveServer(tcp_host);
2389                 return;
2390         }
2391
2392         char response[10240];
2393         char token = udp_msg[0];
2394         char* old = udp_msg;
2395
2396         if (token == ':') // leading :servername or details - strip them off (services does this, sucky)
2397         {
2398                 char* src = udp_msg+1;
2399                 while (udp_msg[0] != ' ')
2400                         udp_msg++;
2401                 udp_msg[0] = 0;
2402                 udp_msg++;
2403                 char* comd = udp_msg;
2404                 while (udp_msg[0] != ' ')
2405                         udp_msg++;
2406                 udp_msg[0] = 0;
2407                 udp_msg++;
2408                 char data[MAXBUF];
2409                 char source[MAXBUF];
2410                 char command[MAXBUF];
2411                 strcpy(data,udp_msg);
2412                 strcpy(source,src);
2413                 strcpy(command,comd);
2414                 udp_msg = old;
2415
2416                 // unused numeric:
2417                 // :services-dev.chatspike.net 433 Craig Craig :Nickname is registered to someone else
2418                 if (!strcmp(command,"433"))
2419                 {
2420                         token = '*';
2421                 }
2422                 if (!strcmp(command,"432"))
2423                 {
2424                         token = '*';
2425                 }
2426                 if (!strcmp(command,"NOTICE"))
2427                 {
2428                         snprintf(udp_msg,MAXBUF,"V %s %s",source,data);
2429                         log(DEBUG,"Rewrote NOTICE from services to: '%s'",udp_msg);
2430                         token = udp_msg[0];
2431                 }
2432                 if (!strcmp(command,"QUIT"))
2433                 {
2434                         if ((!udp_msg) || (!strcmp(data,"")) || (strcmp(data,":")))
2435                         {
2436                                 strcpy(data,":No reason");
2437                         }
2438                         if (!strcmp(data,":"))
2439                         {
2440                                 strcpy(data,":No reason");
2441                         }
2442                         snprintf(udp_msg,MAXBUF,"Q %s %s",source,data);
2443                         log(DEBUG,"Rewrote QUIT from services to: '%s'",udp_msg);
2444                         token = udp_msg[0];
2445                 }
2446                 if (!strcmp(command,"SQUIT"))
2447                 {
2448                         snprintf(udp_msg,MAXBUF,"& %s",source);
2449                         log(DEBUG,"Rewrote SQUIT from services to: '%s'",udp_msg);
2450                         token = udp_msg[0];
2451                 }
2452                 if (!strcmp(command,"SVSMODE"))
2453                 {
2454                         snprintf(udp_msg,MAXBUF,"M %s",data);
2455                         log(DEBUG,"Rewrote SVSMODE from services to: '%s'",udp_msg);
2456                         token = udp_msg[0];
2457                 }
2458                 if (!strcmp(command,"SVS2MODE"))
2459                 {
2460                         snprintf(udp_msg,MAXBUF,"M %s",data);
2461                         log(DEBUG,"Rewrote SVSMODE from services to: '%s'",udp_msg);
2462                         token = udp_msg[0];
2463                 }
2464                 // todo: this wont work without u:lines
2465                 // in give_ops etc allow nick on a u:lined serv to do just about anything
2466                 if (!strcmp(command,"MODE"))
2467                 {
2468                         snprintf(udp_msg,MAXBUF,"m %s %s",source,data);
2469                         log(DEBUG,"Rewrote MODE from services to: '%s'",udp_msg);
2470                         token = udp_msg[0];
2471                 }
2472                 if (!strcmp(command,"KICK"))
2473                 {
2474                         snprintf(udp_msg,MAXBUF,"k %s %s",source,data);
2475                         log(DEBUG,"Rewrote KICK from services to: '%s'",udp_msg);
2476                         token = udp_msg[0];
2477                 }
2478                 if (!strcmp(command,"SVSJOIN"))
2479                 {
2480                         snprintf(udp_msg,MAXBUF,"J %s",data);
2481                         NetSendToOne(tcp_host,udp_msg);
2482                         char* nick = strtok(data," ");
2483                         char* chan = strtok(NULL," ");
2484                         log(DEBUG,"Rewrote SVSJOIN from services to: '%s'",udp_msg);
2485                         userrec* u = Find(nick);
2486                         if (u)
2487                         {
2488                                 add_channel(u,chan,"",true);
2489                         }
2490                         token = udp_msg[0];
2491                 }
2492
2493         }
2494
2495
2496         char* params = udp_msg + 2;
2497         char finalparam[1024];
2498         strcpy(finalparam," :xxxx");
2499         if (strstr(udp_msg," :")) {
2500                 strncpy(finalparam,strstr(udp_msg," :"),1024);
2501         }
2502
2503
2504         if (token == '-') {
2505                 char* cookie = strtok(params," ");
2506                 char* servername = strtok(NULL," ");
2507                 char* serverdesc = finalparam+2;
2508
2509                 WriteOpers("AuthCookie CONNECT from %s (%s)",servername,tcp_host);
2510
2511                 for (int u = 0; u < auth_cookies.size(); u++)
2512                 {
2513                         if (auth_cookies[u] == atoi(cookie))
2514                         {
2515                                 WriteOpers("Allowed cookie from %s, is now part of the mesh",servername);
2516
2517
2518                                 for (int j = 0; j < 32; j++)
2519                                 {
2520                                         if (me[j] != NULL)
2521                                         {
2522                                                 for (int k = 0; k < me[j]->connectors.size(); k++)
2523                                                 {
2524                                                         if (!strcasecmp(me[j]->connectors[k].GetServerName().c_str(),tcp_host))
2525                                                         {
2526                                                                 me[j]->connectors[k].SetServerName(servername);
2527                                                                 me[j]->connectors[k].SetDescription(serverdesc);
2528                                                                 me[j]->connectors[k].SetState(STATE_CONNECTED);
2529                                                                 NetSendMyRoutingTable();
2530                                                                 return;
2531                                                         }
2532                                                 }
2533                                         }
2534                                         WriteOpers("\2WARNING!\2 %s sent us an authentication packet but we are not authenticating with this server right now! Possible intrusion attempt!",tcp_host);
2535                                         return;
2536                                 }
2537
2538
2539                                 return;
2540                         }
2541                 }
2542                 // bad cookie, bad bad! go sit in the corner!
2543                 WriteOpers("Bad cookie from %s!",servername);
2544                 return;
2545         }
2546         else
2547         if (token == 'S') {
2548                 // S test.chatspike.net password portn :ChatSpike InspIRCd test server
2549                 char* servername = strtok(params," ");
2550                 char* password = strtok(NULL," ");
2551                 char* myport = strtok(NULL," ");
2552                 char* revision = strtok(NULL," ");
2553                 char* serverdesc = finalparam+2;
2554
2555                 WriteOpers("CONNECT from %s (%s) (their port: %d)",servername,tcp_host,atoi(myport));
2556
2557                 ircd_connector* cn = serv->FindHost(servername);
2558
2559                 if (cn)
2560                 {
2561                         WriteOpers("CONNECT aborted: Server %s already exists from %s",servername,ServerName);
2562                         char buffer[MAXBUF];
2563                         sprintf(buffer,"E :Server %s already exists!",servername);
2564                         serv->SendPacket(buffer,tcp_host);
2565                         RemoveServer(tcp_host);
2566                         return;
2567                 }
2568
2569                 if (atoi(revision) != GetRevision())
2570                 {
2571                         WriteOpers("CONNECT aborted: Could not link to %s, is an incompatible version %s, our version is %d",servername,revision,GetRevision());
2572                         char buffer[MAXBUF];
2573                         sprintf(buffer,"E :Version number mismatch");
2574                         serv->SendPacket(buffer,tcp_host);
2575                         RemoveServer(tcp_host);
2576                         RemoveServer(servername);
2577                         return;
2578                 }
2579
2580                 for (int j = 0; j < serv->connectors.size(); j++)
2581                 {
2582                         if (!strcasecmp(serv->connectors[j].GetServerName().c_str(),tcp_host))
2583                         {
2584                                 serv->connectors[j].SetServerName(servername);
2585                                 serv->connectors[j].SetDescription(serverdesc);
2586                                 serv->connectors[j].SetServerPort(atoi(myport));
2587                         }
2588                 }
2589
2590
2591                 char Link_ServerName[1024];
2592                 char Link_IPAddr[1024];
2593                 char Link_Port[1024];
2594                 char Link_Pass[1024];
2595                 char Link_SendPass[1024];
2596                 int LinkPort = 0;
2597
2598                 // search for a corresponding <link> block in the config files
2599                 for (int i = 0; i < ConfValueEnum("link",&config_f); i++)
2600                 {
2601                         ConfValue("link","name",i,Link_ServerName,&config_f);
2602                         ConfValue("link","ipaddr",i,Link_IPAddr,&config_f);
2603                         ConfValue("link","port",i,Link_Port,&config_f);
2604                         ConfValue("link","recvpass",i,Link_Pass,&config_f);
2605                         ConfValue("link","sendpass",i,Link_SendPass,&config_f);
2606                         log(DEBUG,"(%d) Comparing against name='%s', ipaddr='%s', port='%s', recvpass='%s'",i,Link_ServerName,Link_IPAddr,Link_Port,Link_Pass);
2607                         LinkPort = atoi(Link_Port);
2608                         if (!strcasecmp(Link_ServerName,servername))
2609                         {
2610                                 // we have a matching link line -
2611                                 // send a 'diminutive' server message back...
2612                                 snprintf(response,10240,"s %s %s :%s",ServerName,Link_SendPass,ServerDesc);
2613                                 serv->SendPacket(response,servername);
2614
2615                                 for (int t = 0; t < serv->connectors.size(); t++)
2616                                 {
2617                                         if (!strcasecmp(serv->connectors[t].GetServerName().c_str(),servername))
2618                                         {
2619                                                 serv->connectors[t].SetState(STATE_CONNECTED);
2620                                         }
2621                                 }
2622
2623                                 return;
2624                         }
2625                 }
2626                 char buffer[MAXBUF];
2627                 sprintf(buffer,"E :Access is denied (no matching link block)");
2628                 serv->SendPacket(buffer,tcp_host);
2629                 WriteOpers("CONNECT from %s denied, no matching link block",servername);
2630                 RemoveServer(tcp_host);
2631                 RemoveServer(servername);
2632                 return;
2633         }
2634         else
2635         if (token == 's') {
2636                 // S test.chatspike.net password :ChatSpike InspIRCd test server
2637                 char* servername = strtok(params," ");
2638                 char* password = strtok(NULL," ");
2639                 char* serverdesc = finalparam+2;
2640
2641                 // TODO: we should do a check here to ensure that this server is one we recently initiated a
2642                 // link with, and didnt hear an 's' or 'E' back from yet (these are the only two valid responses
2643                 // to an 'S' command. If we didn't recently send an 'S' to this server, theyre trying to spoof
2644                 // a connect, so put out an oper alert!
2645
2646                 // for now, just accept all, we'll fix that later.
2647                 WriteOpers("%s accepted our link credentials ",servername);
2648
2649                 char Link_ServerName[1024];
2650                 char Link_IPAddr[1024];
2651                 char Link_Port[1024];
2652                 char Link_Pass[1024];
2653                 char Link_SendPass[1024];
2654                 int LinkPort = 0;
2655
2656                 // search for a corresponding <link> block in the config files
2657                 for (int i = 0; i < ConfValueEnum("link",&config_f); i++)
2658                 {
2659                         ConfValue("link","name",i,Link_ServerName,&config_f);
2660                         ConfValue("link","ipaddr",i,Link_IPAddr,&config_f);
2661                         ConfValue("link","port",i,Link_Port,&config_f);
2662                         ConfValue("link","recvpass",i,Link_Pass,&config_f);
2663                         ConfValue("link","sendpass",i,Link_SendPass,&config_f);
2664                         log(DEBUG,"(%d) Comparing against name='%s', ipaddr='%s', port='%s', recvpass='%s'",i,Link_ServerName,Link_IPAddr,Link_Port,Link_Pass);
2665                         LinkPort = atoi(Link_Port);
2666                         if (!strcasecmp(Link_ServerName,servername))
2667                         {
2668                                 // matching link at this end too, we're all done!
2669                                 // at this point we must begin key exchange and insert this
2670                                 // server into our 'active' table.
2671                                 for (int j = 0; j < 32; j++)
2672                                 {
2673                                         if (me[j] != NULL)
2674                                         {
2675                                                 for (int k = 0; k < me[j]->connectors.size(); k++)
2676                                                 {
2677                                                         if (!strcasecmp(me[j]->connectors[k].GetServerName().c_str(),tcp_host))
2678                                                         {
2679                                                                 char buffer[MAXBUF];
2680                                                                 me[j]->connectors[k].SetDescription(serverdesc);
2681                                                                 me[j]->connectors[k].SetState(STATE_CONNECTED);
2682                                                                 sprintf(buffer,"X 0");
2683                                                                 serv->SendPacket(buffer,tcp_host);
2684                                                                 DoSync(me[j],tcp_host);
2685                                                                 NetSendMyRoutingTable();
2686                                                                 return;
2687                                                         }
2688                                                 }
2689                                         }
2690                                         WriteOpers("\2WARNING!\2 %s sent us an authentication packet but we are not authenticating with this server right noe! Possible intrusion attempt!",tcp_host);
2691                                         return;
2692                                 }
2693                         }
2694                         else {
2695                                 log(DEBUG,"Server names '%s' and '%s' don't match",Link_ServerName,servername);
2696                         }
2697                 }
2698                 char buffer[MAXBUF];
2699                 sprintf(buffer,"E :Access is denied (no matching link block)");
2700                 serv->SendPacket(buffer,tcp_host);
2701                 WriteOpers("CONNECT from %s denied, no matching link block",servername);
2702                 RemoveServer(tcp_host);
2703                 RemoveServer(servername);
2704                 return;
2705         }
2706         else
2707         if (token == 'U') {
2708                 // U services.chatspike.net password :ChatSpike Services
2709                 //
2710                 // non-meshed link, used by services. Everything coming from a non-meshed link is auto broadcasted.
2711                 char* servername = strtok(params," ");
2712                 char* password = strtok(NULL," ");
2713                 char* serverdesc = finalparam+2;
2714
2715                 char Link_ServerName[1024];
2716                 char Link_IPAddr[1024];
2717                 char Link_Port[1024];
2718                 char Link_Pass[1024];
2719                 char Link_SendPass[1024];
2720                 int LinkPort = 0;
2721
2722                 // search for a corresponding <link> block in the config files
2723                 for (int i = 0; i < ConfValueEnum("link",&config_f); i++)
2724                 {
2725                         ConfValue("link","name",i,Link_ServerName,&config_f);
2726                         ConfValue("link","ipaddr",i,Link_IPAddr,&config_f);
2727                         ConfValue("link","port",i,Link_Port,&config_f);
2728                         ConfValue("link","recvpass",i,Link_Pass,&config_f);
2729                         ConfValue("link","sendpass",i,Link_SendPass,&config_f);
2730                         log(DEBUG,"(%d) Comparing against name='%s', ipaddr='%s', port='%s', recvpass='%s'",i,Link_ServerName,Link_IPAddr,Link_Port,Link_Pass);
2731                         LinkPort = atoi(Link_Port);
2732                         if (!strcasecmp(Link_ServerName,servername))
2733                         {
2734                                 // matching link at this end too, we're all done!
2735                                 // at this point we must begin key exchange and insert this
2736                                 // server into our 'active' table.
2737                                 for (int j = 0; j < 32; j++)
2738                                 {
2739                                         if (me[j] != NULL)
2740                                         {
2741                                                 for (int k = 0; k < me[j]->connectors.size(); k++)
2742                                                 {
2743                                                         if (!strcasecmp(me[j]->connectors[k].GetServerName().c_str(),tcp_host))
2744                                                         {
2745                                                                 char buffer[MAXBUF];
2746                                                                 me[j]->connectors[k].SetDescription(serverdesc);
2747                                                                 me[j]->connectors[k].SetServerName(servername);
2748                                                                 me[j]->connectors[k].SetState(STATE_SERVICES);
2749                                                                 sprintf(buffer,"X 0");
2750                                                                 serv->SendPacket(buffer,servername);
2751                                                                 DoSync(me[j],servername);
2752                                                                 NetSendMyRoutingTable();
2753                                                                 sprintf(buffer,"H %s",servername);
2754                                                                 NetSendToAllExcept(servername,buffer);
2755                                                                 WriteOpers("Non-Mesh server %s has joined the network",servername);
2756                                                                 return;
2757                                                         }
2758                                                 }
2759                                         }
2760                                         WriteOpers("\2WARNING!\2 %s sent us an authentication packet but we are not authenticating with this server right noe! Possible intrusion attempt!",tcp_host);
2761                                         return;
2762                                 }
2763                         }
2764                         else {
2765                                 log(DEBUG,"Server names '%s' and '%s' don't match",Link_ServerName,servername);
2766                         }
2767                 }
2768                 char buffer[MAXBUF];
2769                 sprintf(buffer,"E :Access is denied (no matching link block)");
2770                 serv->SendPacket(buffer,tcp_host);
2771                 WriteOpers("CONNECT from %s denied, no matching link block",servername);
2772                 RemoveServer(tcp_host);
2773                 RemoveServer(servername);
2774                 return;
2775         }
2776         else
2777         if (token == 'E') {
2778                 char* error_message = finalparam+2;
2779                 WriteOpers("ERROR from %s: %s",tcp_host,error_message);
2780                 return;
2781         }
2782         else {
2783
2784                 serverrec* source_server = NULL;
2785
2786                 for (int j = 0; j < 32; j++)
2787                 {
2788                         if (me[j] != NULL)
2789                         {
2790                                 for (int x = 0; x < me[j]->connectors.size(); x++)
2791                                 {
2792                                         log(DEBUG,"Servers are: '%s' '%s'",tcp_host,me[j]->connectors[x].GetServerName().c_str());
2793                                         if (!strcasecmp(me[j]->connectors[x].GetServerName().c_str(),tcp_host))
2794                                         {
2795                                                 if ((me[j]->connectors[x].GetState() == STATE_CONNECTED) || (me[j]->connectors[x].GetState() == STATE_SERVICES))
2796                                                 {
2797                                                         // found a valid ircd_connector.
2798                                                         process_restricted_commands(token,params,me[j],serv,tcp_host,me[j]->connectors[x].GetServerIP(),me[j]->connectors[x].GetServerPort());
2799                                                         return;
2800                                                 }
2801                                         }
2802                                 }
2803                         }
2804                 }
2805
2806                 log(DEBUG,"Unrecognised token or unauthenticated host in datagram from %s: %c",tcp_host,token);
2807         }
2808 }
2809
2810 long duration(char* str)
2811 {
2812         char n_field[MAXBUF];
2813         long total = 0;
2814         char* str_end = str + strlen(str);
2815         n_field[0] = 0;
2816
2817         for (char* i = str; i < str_end; i++)
2818         {
2819                 // if we have digits, build up a string for the value in n_field,
2820                 // up to 10 digits in size.
2821                 if ((*i >= '0') && (*i <= '9'))
2822                 {
2823                         strncat(n_field,i,10);
2824                 }
2825                 else
2826                 {
2827                         // we dont have a digit, check for numeric tokens
2828                         switch (tolower(*i))
2829                         {
2830                                 case 's':
2831                                         total += atoi(n_field);
2832                                 break;
2833
2834                                 case 'm':
2835                                         total += (atoi(n_field)*duration_m);
2836                                 break;
2837
2838                                 case 'h':
2839                                         total += (atoi(n_field)*duration_h);
2840                                 break;
2841
2842                                 case 'd':
2843                                         total += (atoi(n_field)*duration_d);
2844                                 break;
2845
2846                                 case 'w':
2847                                         total += (atoi(n_field)*duration_w);
2848                                 break;
2849
2850                                 case 'y':
2851                                         total += (atoi(n_field)*duration_y);
2852                                 break;
2853                         }
2854                         n_field[0] = 0;
2855                 }
2856         }
2857         // add trailing seconds
2858         total += atoi(n_field);
2859
2860         return total;
2861 }
2862
2863
2864 void handle_kline(char **parameters, int pcnt, userrec *user)
2865 {
2866         if (pcnt >= 3)
2867         {
2868                 add_kline(duration(parameters[1]),user->nick,parameters[2],parameters[0]);
2869                 if (!duration(parameters[1]))
2870                 {
2871                         WriteOpers("*** %s added permenant K-line for %s.",user->nick,parameters[0]);
2872                 }
2873                 else
2874                 {
2875                         WriteOpers("*** %s added timed K-line for %s, expires in %d seconds.",user->nick,parameters[0],duration(parameters[1]));
2876                 }
2877         }
2878         else
2879         {
2880                 if (del_kline(parameters[0]))
2881                 {
2882                         WriteOpers("*** %s Removed K-line on %s.",user->nick,parameters[0]);
2883                 }
2884                 else
2885                 {
2886                         WriteServ(user->fd,"NOTICE %s :*** K-Line %s not found in list, try /stats k.",user->nick,parameters[0]);
2887                 }
2888         }
2889         apply_lines();
2890 }
2891
2892 void handle_gline(char **parameters, int pcnt, userrec *user)
2893 {
2894         char netdata[MAXBUF];
2895         if (pcnt >= 3)
2896         {
2897                 add_gline(duration(parameters[1]),user->nick,parameters[2],parameters[0]);
2898                 // # <mask> <who-set-it> <time-set> <duration> :<reason>
2899                 snprintf(netdata,MAXBUF,"# %s %s %ld %ld :%s",parameters[0],user->nick,time(NULL),duration(parameters[1]),parameters[2]);
2900                 NetSendToAll(netdata);
2901                 if (!duration(parameters[1]))
2902                 {
2903                         WriteOpers("*** %s added permenant G-line for %s.",user->nick,parameters[0]);
2904                 }
2905                 else
2906                 {
2907                         WriteOpers("*** %s added timed G-line for %s, expires in %d seconds.",user->nick,parameters[0],duration(parameters[1]));
2908                 }
2909         }
2910         else
2911         {
2912                 if (del_gline(parameters[0]))
2913                 {
2914                         // . <mask> <who-removed-it>
2915                         snprintf(netdata,MAXBUF,". %s %s",parameters[0],user->nick);
2916                         WriteOpers("*** %s Removed G-line on %s.",user->nick,parameters[0]);
2917                 }
2918                 else
2919                 {
2920                         WriteServ(user->fd,"NOTICE %s :*** G-Line %s not found in list, try /stats g.",user->nick,parameters[0]);
2921                 }
2922         }
2923         apply_lines();
2924 }
2925
2926 void handle_zline(char **parameters, int pcnt, userrec *user)
2927 {
2928         if (pcnt >= 3)
2929         {
2930                 add_zline(duration(parameters[1]),user->nick,parameters[2],parameters[0]);
2931                 if (!duration(parameters[1]))
2932                 {
2933                         WriteOpers("*** %s added permenant Z-line for %s.",user->nick,parameters[0]);
2934                 }
2935                 else
2936                 {
2937                         WriteOpers("*** %s added timed Z-line for %s, expires in %d seconds.",user->nick,parameters[0],duration(parameters[1]));
2938                 }
2939         }
2940         else
2941         {
2942                 if (del_zline(parameters[0]))
2943                 {
2944                         WriteOpers("*** %s Removed Z-line on %s.",user->nick,parameters[0]);
2945                 }
2946                 else
2947                 {
2948                         WriteServ(user->fd,"NOTICE %s :*** Z-Line %s not found in list, try /stats Z.",user->nick,parameters[0]);
2949                 }
2950         }
2951         apply_lines();
2952 }
2953
2954 void handle_qline(char **parameters, int pcnt, userrec *user)
2955 {
2956         if (pcnt >= 3)
2957         {
2958                 add_qline(duration(parameters[1]),user->nick,parameters[2],parameters[0]);
2959                 if (!duration(parameters[1]))
2960                 {
2961                         WriteOpers("*** %s added permenant Q-line for %s.",user->nick,parameters[0]);
2962                 }
2963                 else
2964                 {
2965                         WriteOpers("*** %s added timed Q-line for %s, expires in %d seconds.",user->nick,parameters[0],duration(parameters[1]));
2966                 }
2967         }
2968         else
2969         {
2970                 if (del_qline(parameters[0]))
2971                 {
2972                         WriteOpers("*** %s Removed Q-line on %s.",user->nick,parameters[0]);
2973                 }
2974                 else
2975                 {
2976                         WriteServ(user->fd,"NOTICE %s :*** Q-Line %s not found in list, try /stats k.",user->nick,parameters[0]);
2977                 }
2978         }
2979         apply_lines();
2980 }
2981
2982