src/commands.cpp

   1 /*       +------------------------------------+
   2  *       | Inspire Internet Relay Chat Daemon |
   3  *       +------------------------------------+
   4  *
   5  *  Inspire is copyright (C) 2002-2004 ChatSpike-Dev.
   6  *                       E-mail:
   7  *                <brain@chatspike.net>
   8  *                <Craig@chatspike.net>
   9  *
  10  * Written by Craig Edwards, Craig McLure, and others.
  11  * This program is free but copyrighted software; see
  12  *            the file COPYING for details.
  13  *
  14  * ---------------------------------------------------
  15  */
  16
  17 #include "inspircd.h"
  18 #include "inspircd_io.h"
  19 #include "inspircd_util.h"
  20 #include "inspircd_config.h"
  21 #include <unistd.h>
  22 #include <fcntl.h>
  23 #include <sys/errno.h>
  24 #include <sys/ioctl.h>
  25 #include <sys/utsname.h>
  26 #include <cstdio>
  27 #include <time.h>
  28 #include <string>
  29 #ifdef GCC3
  30 #include <ext/hash_map>
  31 #else
  32 #include <hash_map>
  33 #endif
  34 #include <map>
  35 #include <sstream>
  36 #include <vector>
  37 #include <errno.h>
  38 #include <deque>
  39 #include <errno.h>
  40 #include <unistd.h>
  41 #include <sched.h>
  42 #include "connection.h"
  43 #include "users.h"
  44 #include "servers.h"
  45 #include "ctables.h"
  46 #include "globals.h"
  47 #include "modules.h"
  48 #include "dynamic.h"
  49 #include "wildcard.h"
  50 #include "message.h"
  51 #include "mode.h"
  52 #include "xline.h"
  53 #include "inspstring.h"
  54 #include "dnsqueue.h"
  55
  56 #ifdef GCC3
  57 #define nspace __gnu_cxx
  58 #else
  59 #define nspace std
  60 #endif
  61
  62 using namespace std;
  63
  64 extern int MODCOUNT;
  65 extern std::vector<Module*> modules;
  66 extern std::vector<ircd_module*> factory;
  67
  68 extern int LogLevel;
  69 extern char ServerName[MAXBUF];
  70 extern char Network[MAXBUF];
  71 extern char ServerDesc[MAXBUF];
  72 extern char AdminName[MAXBUF];
  73 extern char AdminEmail[MAXBUF];
  74 extern char AdminNick[MAXBUF];
  75 extern char diepass[MAXBUF];
  76 extern char restartpass[MAXBUF];
  77 extern char motd[MAXBUF];
  78 extern char rules[MAXBUF];
  79 extern char list[MAXBUF];
  80 extern char PrefixQuit[MAXBUF];
  81 extern char DieValue[MAXBUF];
  82
  83 extern int debugging;
  84 extern int WHOWAS_STALE;
  85 extern int WHOWAS_MAX;
  86 extern int DieDelay;
  87 extern time_t startup_time;
  88 extern int NetBufferSize;
  89 extern int MaxWhoResults;
  90 extern time_t nb_start;
  91
  92 extern bool nofork;
  93
  94 extern time_t TIME;
  95
  96 extern std::vector<int> fd_reap;
  97 extern std::vector<std::string> module_names;
  98
  99 extern char MyExecutable[1024];
 100 extern int boundPortCount;
 101 extern int portCount;
 102 extern int UDPportCount;
 103 extern int ports[MAXSOCKS];
 104 extern int defaultRoute;
 105
 106 extern std::vector<long> auth_cookies;
 107 extern std::stringstream config_f;
 108
 109 extern serverrec* me[32];
 110
 111 extern FILE *log_file;
 112
 113 extern ClassVector Classes;
 114
 115 const long duration_m = 60;
 116 const long duration_h = duration_m * 60;
 117 const long duration_d = duration_h * 24;
 118 const long duration_w = duration_d * 7;
 119 const long duration_y = duration_w * 52;
 120
 121 namespace nspace
 122 {
 123 #ifdef GCC34
 124         template<> struct hash<in_addr>
 125 #else
 126         template<> struct nspace::hash<in_addr>
 127 #endif
 128         {
 129                 size_t operator()(const struct in_addr &a) const
 130                 {
 131                         size_t q;
 132                         memcpy(&q,&a,sizeof(size_t));
 133                         return q;
 134                 }
 135         };
 136 #ifdef GCC34
 137         template<> struct hash<string>
 138 #else
 139         template<> struct nspace::hash<string>
 140 #endif
 141         {
 142                 size_t operator()(const string &s) const
 143                 {
 144                         char a[MAXBUF];
 145                         static struct hash<const char *> strhash;
 146                         strlcpy(a,s.c_str(),MAXBUF);
 147                         strlower(a);
 148                         return strhash(a);
 149                 }
 150         };
 151 }
 152
 153
 154 struct StrHashComp
 155 {
 156
 157         bool operator()(const string& s1, const string& s2) const
 158         {
 159                 char a[MAXBUF],b[MAXBUF];
 160                 strlcpy(a,s1.c_str(),MAXBUF);
 161                 strlcpy(b,s2.c_str(),MAXBUF);
 162                 return (strcasecmp(a,b) == 0);
 163         }
 164
 165 };
 166
 167 struct InAddr_HashComp
 168 {
 169
 170         bool operator()(const in_addr &s1, const in_addr &s2) const
 171         {
 172                 size_t q;
 173                 size_t p;
 174
 175                 memcpy(&q,&s1,sizeof(size_t));
 176                 memcpy(&p,&s2,sizeof(size_t));
 177
 178                 return (q == p);
 179         }
 180
 181 };
 182
 183
 184 typedef nspace::hash_map<std::string, userrec*, nspace::hash<string>, StrHashComp> user_hash;
 185 typedef nspace::hash_map<std::string, chanrec*, nspace::hash<string>, StrHashComp> chan_hash;
 186 typedef nspace::hash_map<in_addr,string*, nspace::hash<in_addr>, InAddr_HashComp> address_cache;
 187 typedef std::deque<command_t> command_table;
 188
 189
 190 extern user_hash clientlist;
 191 extern chan_hash chanlist;
 192 extern user_hash whowas;
 193 extern command_table cmdlist;
 194 extern file_cache MOTD;
 195 extern file_cache RULES;
 196 extern address_cache IP;
 197
 198
 199 void handle_join(char **parameters, int pcnt, userrec *user)
 200 {
 201         chanrec* Ptr;
 202         int i = 0;
 203
 204         if (loop_call(handle_join,parameters,pcnt,user,0,0,1))
 205                 return;
 206         if (parameters[0][0] == '#')
 207         {
 208                 Ptr = add_channel(user,parameters[0],parameters[1],false);
 209         }
 210 }
 211
 212
 213 void handle_part(char **parameters, int pcnt, userrec *user)
 214 {
 215         chanrec* Ptr;
 216
 217         if (pcnt > 1)
 218         {
 219                 if (loop_call(handle_part,parameters,pcnt,user,0,pcnt-2,0))
 220                         return;
 221                 del_channel(user,parameters[0],parameters[1],false);
 222         }
 223         else
 224         {
 225                 if (loop_call(handle_part,parameters,pcnt,user,0,pcnt-1,0))
 226                         return;
 227                 del_channel(user,parameters[0],NULL,false);
 228         }
 229 }
 230
 231 void handle_kick(char **parameters, int pcnt, userrec *user)
 232 {
 233         chanrec* Ptr = FindChan(parameters[0]);
 234         userrec* u   = Find(parameters[1]);
 235
 236         if ((!u) || (!Ptr))
 237         {
 238                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
 239                 return;
 240         }
 241
 242         if (!has_channel(user,Ptr))
 243         {
 244                 WriteServ(user->fd,"442 %s %s :You're not on that channel!",user->nick, parameters[0]);
 245                 return;
 246         }
 247
 248         char reason[MAXBUF];
 249
 250         if (pcnt > 2)
 251         {
 252                 strlcpy(reason,parameters[2],MAXBUF);
 253                 if (strlen(reason)>MAXKICK)
 254                 {
 255                         reason[MAXKICK-1] = '\0';
 256                 }
 257
 258                 kick_channel(user,u,Ptr,reason);
 259         }
 260         else
 261         {
 262                 strlcpy(reason,user->nick,MAXBUF);
 263                 kick_channel(user,u,Ptr,reason);
 264         }
 265
 266         // this must be propogated so that channel membership is kept in step network-wide
 267         char buffer[MAXBUF];
 268         snprintf(buffer,MAXBUF,"k %s %s %s :%s",user->nick,u->nick,Ptr->name,reason);
 269         NetSendToAll(buffer);
 270 }
 271
 272 void handle_loadmodule(char **parameters, int pcnt, userrec *user)
 273 {
 274         if (LoadModule(parameters[0]))
 275         {
 276                 WriteOpers("*** NEW MODULE: %s",parameters[0]);
 277                 WriteServ(user->fd,"975 %s %s :Module successfully loaded.",user->nick, parameters[0]);
 278         }
 279         else
 280         {
 281                 WriteServ(user->fd,"974 %s %s :Failed to load module: %s",user->nick, parameters[0],ModuleError());
 282         }
 283 }
 284
 285 void handle_unloadmodule(char **parameters, int pcnt, userrec *user)
 286 {
 287         if (UnloadModule(parameters[0]))
 288         {
 289                 WriteOpers("*** MODULE UNLOADED: %s",parameters[0]);
 290                 WriteServ(user->fd,"973 %s %s :Module successfully unloaded.",user->nick, parameters[0]);
 291         }
 292         else
 293         {
 294                 WriteServ(user->fd,"972 %s %s :Failed to unload module: %s",user->nick, parameters[0],ModuleError());
 295         }
 296 }
 297
 298 void handle_die(char **parameters, int pcnt, userrec *user)
 299 {
 300         log(DEBUG,"die: %s",user->nick);
 301         if (!strcmp(parameters[0],diepass))
 302         {
 303                 WriteOpers("*** DIE command from %s!%s@%s, terminating...",user->nick,user->ident,user->host);
 304                 sleep(DieDelay);
 305                 Exit(ERROR);
 306         }
 307         else
 308         {
 309                 WriteOpers("*** Failed DIE Command from %s!%s@%s.",user->nick,user->ident,user->host);
 310         }
 311 }
 312
 313 void handle_restart(char **parameters, int pcnt, userrec *user)
 314 {
 315         char restart[1024];
 316         char *argv[32];
 317         log(DEFAULT,"Restart: %s",user->nick);
 318         if (!strcmp(parameters[0],restartpass))
 319         {
 320                 WriteOpers("*** RESTART command from %s!%s@%s, restarting server.",user->nick,user->ident,user->host);
 321
 322                 argv[0] = MyExecutable;
 323                 argv[1] = "-wait";
 324                 if (nofork)
 325                 {
 326                         argv[2] = "-nofork";
 327                 }
 328                 else
 329                 {
 330                         argv[2] = NULL;
 331                 }
 332                 argv[3] = NULL;
 333
 334                 // close ALL file descriptors
 335                 send_error("Server restarting.");
 336                 sleep(1);
 337                 for (int i = 0; i < 65536; i++)
 338                 {
 339                         int on = 0;
 340                         struct linger linger = { 0 };
 341                         setsockopt(i, SOL_SOCKET, SO_REUSEADDR, (const char*)&on, sizeof(on));
 342                         linger.l_onoff = 1;
 343                         linger.l_linger = 0;
 344                         setsockopt(i, SOL_SOCKET, SO_LINGER, (const char*)&linger,sizeof(linger));
 345                         Blocking(i);
 346                         close(i);
 347                 }
 348                 sleep(5);
 349
 350                 execv(MyExecutable,argv);
 351
 352                 exit(0);
 353         }
 354         else
 355         {
 356                 WriteOpers("*** Failed RESTART Command from %s!%s@%s.",user->nick,user->ident,user->host);
 357         }
 358 }
 359
 360 void handle_kill(char **parameters, int pcnt, userrec *user)
 361 {
 362         userrec *u = Find(parameters[0]);
 363         char killreason[MAXBUF];
 364
 365         log(DEBUG,"kill: %s %s",parameters[0],parameters[1]);
 366         if (u)
 367         {
 368                 log(DEBUG,"into kill mechanism");
 369                 int MOD_RESULT = 0;
 370                 FOREACH_RESULT(OnKill(user,u,parameters[1]));
 371                 if (MOD_RESULT) {
 372                         log(DEBUG,"A module prevented the kill with result %d",MOD_RESULT);
 373                         return;
 374                 }
 375
 376                 if (strcmp(ServerName,u->server))
 377                 {
 378                         // remote kill
 379                         WriteOpers("*** Remote kill by %s: %s!%s@%s (%s)",user->nick,u->nick,u->ident,u->host,parameters[1]);
 380                         snprintf(killreason,MAXBUF,"[%s] Killed (%s (%s))",ServerName,user->nick,parameters[1]);
 381                         WriteCommonExcept(u,"QUIT :%s",killreason);
 382                         // K token must go to ALL servers!!!
 383                         char buffer[MAXBUF];
 384                         snprintf(buffer,MAXBUF,"K %s %s :%s",user->nick,u->nick,killreason);
 385                         NetSendToAll(buffer);
 386
 387                         user_hash::iterator iter = clientlist.find(u->nick);
 388                         if (iter != clientlist.end())
 389                         {
 390                                 log(DEBUG,"deleting user hash value %d",iter->second);
 391                                 if ((iter->second) && (user->registered == 7)) {
 392                                         delete iter->second;
 393                                 }
 394                                 clientlist.erase(iter);
 395                         }
 396                         purge_empty_chans();
 397                 }
 398                 else
 399                 {
 400                         // local kill
 401                         log(DEFAULT,"LOCAL KILL: %s :%s!%s!%s (%s)", u->nick, ServerName,user->dhost,user->nick,parameters[1]);
 402                         WriteTo(user, u, "KILL %s :%s!%s!%s (%s)", u->nick, ServerName,user->dhost,user->nick,parameters[1]);
 403                         WriteOpers("*** Local Kill by %s: %s!%s@%s (%s)",user->nick,u->nick,u->ident,u->host,parameters[1]);
 404                         snprintf(killreason,MAXBUF,"Killed (%s (%s))",user->nick,parameters[1]);
 405                         kill_link(u,killreason);
 406                 }
 407         }
 408         else
 409         {
 410                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
 411         }
 412 }
 413
 414 void handle_summon(char **parameters, int pcnt, userrec *user)
 415 {
 416         WriteServ(user->fd,"445 %s :SUMMON has been disabled (depreciated command)",user->nick);
 417 }
 418
 419 void handle_users(char **parameters, int pcnt, userrec *user)
 420 {
 421         WriteServ(user->fd,"445 %s :USERS has been disabled (depreciated command)",user->nick);
 422 }
 423
 424 void handle_pass(char **parameters, int pcnt, userrec *user)
 425 {
 426         // Check to make sure they havnt registered -- Fix by FCS
 427         if (user->registered == 7)
 428         {
 429                 WriteServ(user->fd,"462 %s :You may not reregister",user->nick);
 430                 return;
 431         }
 432         if (!strcasecmp(parameters[0],Passwd(user)))
 433         {
 434                 user->haspassed = true;
 435         }
 436 }
 437
 438 void handle_invite(char **parameters, int pcnt, userrec *user)
 439 {
 440         userrec* u = Find(parameters[0]);
 441         chanrec* c = FindChan(parameters[1]);
 442
 443         if ((!c) || (!u))
 444         {
 445                 if (!c)
 446                 {
 447                         WriteServ(user->fd,"401 %s %s :No such nick/channel",user->nick, parameters[1]);
 448                 }
 449                 else
 450                 {
 451                         if (c->inviteonly)
 452                         {
 453                                 WriteServ(user->fd,"401 %s %s :No such nick/channel",user->nick, parameters[0]);
 454                         }
 455                 }
 456
 457                 return;
 458         }
 459
 460         if (c->inviteonly)
 461         {
 462                 if (cstatus(user,c) < STATUS_HOP)
 463                 {
 464                         WriteServ(user->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel",user->nick, c->name);
 465                         return;
 466                 }
 467         }
 468         if (has_channel(u,c))
 469         {
 470                 WriteServ(user->fd,"443 %s %s %s :Is already on channel %s",user->nick,u->nick,c->name,c->name);
 471                 return;
 472         }
 473         if (!has_channel(user,c))
 474         {
 475                 WriteServ(user->fd,"442 %s %s :You're not on that channel!",user->nick, c->name);
 476                 return;
 477         }
 478
 479         int MOD_RESULT = 0;
 480         FOREACH_RESULT(OnUserPreInvite(user,u,c));
 481         if (MOD_RESULT == 1) {
 482                 return;
 483         }
 484
 485         u->InviteTo(c->name);
 486         WriteFrom(u->fd,user,"INVITE %s :%s",u->nick,c->name);
 487         WriteServ(user->fd,"341 %s %s %s",user->nick,u->nick,c->name);
 488
 489         // i token must go to ALL servers!!!
 490         char buffer[MAXBUF];
 491         snprintf(buffer,MAXBUF,"i %s %s %s",u->nick,user->nick,c->name);
 492         NetSendToAll(buffer);
 493 }
 494
 495 void handle_topic(char **parameters, int pcnt, userrec *user)
 496 {
 497         chanrec* Ptr;
 498
 499         if (pcnt == 1)
 500         {
 501                 if (strlen(parameters[0]) <= CHANMAX)
 502                 {
 503                         Ptr = FindChan(parameters[0]);
 504                         if (Ptr)
 505                         {
 506                                 if (((Ptr) && (!has_channel(user,Ptr))) && (Ptr->secret))
 507                                 {
 508                                         WriteServ(user->fd,"442 %s %s :You're not on that channel!",user->nick, Ptr->name);
 509                                         return;
 510                                 }
 511                                 if (Ptr->topicset)
 512                                 {
 513                                         WriteServ(user->fd,"332 %s %s :%s", user->nick, Ptr->name, Ptr->topic);
 514                                         WriteServ(user->fd,"333 %s %s %s %d", user->nick, Ptr->name, Ptr->setby, Ptr->topicset);
 515                                 }
 516                                 else
 517                                 {
 518                                         WriteServ(user->fd,"331 %s %s :No topic is set.", user->nick, Ptr->name);
 519                                 }
 520                         }
 521                         else
 522                         {
 523                                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
 524                         }
 525                 }
 526                 return;
 527         }
 528         else if (pcnt>1)
 529         {
 530                 if (strlen(parameters[0]) <= CHANMAX)
 531                 {
 532                         Ptr = FindChan(parameters[0]);
 533                         if (Ptr)
 534                         {
 535                                 if ((Ptr) && (!has_channel(user,Ptr)))
 536                                 {
 537                                         WriteServ(user->fd,"442 %s %s :You're not on that channel!",user->nick, Ptr->name);
 538                                         return;
 539                                 }
 540                                 if ((Ptr->topiclock) && (cstatus(user,Ptr)<STATUS_HOP))
 541                                 {
 542                                         WriteServ(user->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel", user->nick, Ptr->name);
 543                                         return;
 544                                 }
 545
 546                                 char topic[MAXBUF];
 547                                 strlcpy(topic,parameters[1],MAXBUF);
 548                                 if (strlen(topic)>MAXTOPIC)
 549                                 {
 550                                         topic[MAXTOPIC-1] = '\0';
 551                                 }
 552
 553                                 strlcpy(Ptr->topic,topic,MAXBUF);
 554                                 strlcpy(Ptr->setby,user->nick,NICKMAX);
 555                                 Ptr->topicset = TIME;
 556                                 WriteChannel(Ptr,user,"TOPIC %s :%s",Ptr->name, Ptr->topic);
 557
 558                                 // t token must go to ALL servers!!!
 559                                 char buffer[MAXBUF];
 560                                 snprintf(buffer,MAXBUF,"t %s %s :%s",user->nick,Ptr->name,topic);
 561                                 NetSendToAll(buffer);
 562                         }
 563                         else
 564                         {
 565                                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
 566                         }
 567                 }
 568         }
 569 }
 570
 571 void handle_names(char **parameters, int pcnt, userrec *user)
 572 {
 573         chanrec* c;
 574
 575         if (!pcnt)
 576         {
 577                 WriteServ(user->fd,"366 %s * :End of /NAMES list.",user->nick);
 578                 return;
 579         }
 580
 581         if (loop_call(handle_names,parameters,pcnt,user,0,pcnt-1,0))
 582                 return;
 583         c = FindChan(parameters[0]);
 584         if (c)
 585         {
 586                 if (((c) && (!has_channel(user,c))) && (c->secret))
 587                 {
 588                       WriteServ(user->fd,"442 %s %s :You're not on that channel!",user->nick, c->name);
 589                       return;
 590                 }
 591                 userlist(user,c);
 592                 WriteServ(user->fd,"366 %s %s :End of /NAMES list.", user->nick, c->name);
 593         }
 594         else
 595         {
 596                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
 597         }
 598 }
 599
 600 void handle_privmsg(char **parameters, int pcnt, userrec *user)
 601 {
 602         userrec *dest;
 603         chanrec *chan;
 604
 605         user->idle_lastmsg = TIME;
 606
 607         if (loop_call(handle_privmsg,parameters,pcnt,user,0,pcnt-2,0))
 608                 return;
 609         if (parameters[0][0] == '#')
 610         {
 611                 chan = FindChan(parameters[0]);
 612                 if (chan)
 613                 {
 614                         if ((chan->noexternal) && (!has_channel(user,chan)))
 615                         {
 616                                 WriteServ(user->fd,"404 %s %s :Cannot send to channel (no external messages)", user->nick, chan->name);
 617                                 return;
 618                         }
 619                         if ((chan->moderated) && (cstatus(user,chan)<STATUS_VOICE))
 620                         {
 621                                 WriteServ(user->fd,"404 %s %s :Cannot send to channel (+m)", user->nick, chan->name);
 622                                 return;
 623                         }
 624
 625                         int MOD_RESULT = 0;
 626
 627                         std::string temp = parameters[1];
 628                         FOREACH_RESULT(OnUserPreMessage(user,chan,TYPE_CHANNEL,temp));
 629                         if (MOD_RESULT) {
 630                                 return;
 631                         }
 632                         parameters[1] = (char*)temp.c_str();
 633
 634                         ChanExceptSender(chan, user, "PRIVMSG %s :%s", chan->name, parameters[1]);
 635
 636                         // if any users of this channel are on remote servers, broadcast the packet
 637                         char buffer[MAXBUF];
 638                         snprintf(buffer,MAXBUF,"P %s %s :%s",user->nick,chan->name,parameters[1]);
 639                         NetSendToCommon(user,buffer);
 640                 }
 641                 else
 642                 {
 643                         /* no such nick/channel */
 644                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
 645                 }
 646                 return;
 647         }
 648
 649         dest = Find(parameters[0]);
 650         if (dest)
 651         {
 652                 if (strcmp(dest->awaymsg,""))
 653                 {
 654                         /* auto respond with aweh msg */
 655                         WriteServ(user->fd,"301 %s %s :%s",user->nick,dest->nick,dest->awaymsg);
 656                 }
 657
 658                 int MOD_RESULT = 0;
 659
 660                 std::string temp = parameters[1];
 661                 FOREACH_RESULT(OnUserPreMessage(user,dest,TYPE_USER,temp));
 662                 if (MOD_RESULT) {
 663                         return;
 664                 }
 665                 parameters[1] = (char*)temp.c_str();
 666
 667
 668
 669                 if (!strcmp(dest->server,user->server))
 670                 {
 671                         // direct write, same server
 672                         WriteTo(user, dest, "PRIVMSG %s :%s", dest->nick, parameters[1]);
 673                 }
 674                 else
 675                 {
 676                         char buffer[MAXBUF];
 677                         snprintf(buffer,MAXBUF,"P %s %s :%s",user->nick,dest->nick,parameters[1]);
 678                         NetSendToOne(dest->server,buffer);
 679                 }
 680         }
 681         else
 682         {
 683                 /* no such nick/channel */
 684                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
 685         }
 686 }
 687
 688 void handle_notice(char **parameters, int pcnt, userrec *user)
 689 {
 690         userrec *dest;
 691         chanrec *chan;
 692
 693         user->idle_lastmsg = TIME;
 694
 695         if (loop_call(handle_notice,parameters,pcnt,user,0,pcnt-2,0))
 696                 return;
 697         if (parameters[0][0] == '#')
 698         {
 699                 chan = FindChan(parameters[0]);
 700                 if (chan)
 701                 {
 702                         if ((chan->noexternal) && (!has_channel(user,chan)))
 703                         {
 704                                 WriteServ(user->fd,"404 %s %s :Cannot send to channel (no external messages)", user->nick, chan->name);
 705                                 return;
 706                         }
 707                         if ((chan->moderated) && (cstatus(user,chan)<STATUS_VOICE))
 708                         {
 709                                 WriteServ(user->fd,"404 %s %s :Cannot send to channel (+m)", user->nick, chan->name);
 710                                 return;
 711                         }
 712
 713                         int MOD_RESULT = 0;
 714
 715                         std::string temp = parameters[1];
 716                         FOREACH_RESULT(OnUserPreNotice(user,chan,TYPE_CHANNEL,temp));
 717                         if (MOD_RESULT) {
 718                                 return;
 719                         }
 720                         parameters[1] = (char*)temp.c_str();
 721
 722                         ChanExceptSender(chan, user, "NOTICE %s :%s", chan->name, parameters[1]);
 723
 724                         // if any users of this channel are on remote servers, broadcast the packet
 725                         char buffer[MAXBUF];
 726                         snprintf(buffer,MAXBUF,"V %s %s :%s",user->nick,chan->name,parameters[1]);
 727                         NetSendToCommon(user,buffer);
 728                 }
 729                 else
 730                 {
 731                         /* no such nick/channel */
 732                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
 733                 }
 734                 return;
 735         }
 736
 737         dest = Find(parameters[0]);
 738         if (dest)
 739         {
 740                 int MOD_RESULT = 0;
 741
 742                 std::string temp = parameters[1];
 743                 FOREACH_RESULT(OnUserPreNotice(user,dest,TYPE_USER,temp));
 744                 if (MOD_RESULT) {
 745                         return;
 746                 }
 747                 parameters[1] = (char*)temp.c_str();
 748
 749                 if (!strcmp(dest->server,user->server))
 750                 {
 751                         // direct write, same server
 752                         WriteTo(user, dest, "NOTICE %s :%s", dest->nick, parameters[1]);
 753                 }
 754                 else
 755                 {
 756                         char buffer[MAXBUF];
 757                         snprintf(buffer,MAXBUF,"V %s %s :%s",user->nick,dest->nick,parameters[1]);
 758                         NetSendToOne(dest->server,buffer);
 759                 }
 760         }
 761         else
 762         {
 763                 /* no such nick/channel */
 764                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
 765         }
 766 }
 767
 768 void handle_server(char **parameters, int pcnt, userrec *user)
 769 {
 770         WriteServ(user->fd,"666 %s :You cannot identify as a server, you are a USER. IRC Operators informed.",user->nick);
 771         WriteOpers("*** WARNING: %s attempted to issue a SERVER command and is registered as a user!",user->nick);
 772 }
 773
 774 void handle_info(char **parameters, int pcnt, userrec *user)
 775 {
 776         WriteServ(user->fd,"371 %s :. o O (The Inspire Internet Relay Chat Server) O o .",user->nick);
 777         WriteServ(user->fd,"371 %s : ",user->nick);
 778         WriteServ(user->fd,"371 %s :Core developers: Craig Edwards (Brain)",user->nick);
 779         WriteServ(user->fd,"371 %s :                 Craig McLure",user->nick);
 780         WriteServ(user->fd,"371 %s : ",user->nick);
 781         WriteServ(user->fd,"371 %s :Contributors:    typobox43",user->nick);
 782         WriteServ(user->fd,"371 %s :                 w00t",user->nick);
 783         WriteServ(user->fd,"371 %s :                 Om",user->nick);
 784         WriteServ(user->fd,"371 %s :                 Jazza",user->nick);
 785         WriteServ(user->fd,"371 %s : ",user->nick);
 786         WriteServ(user->fd,"371 %s :Testers:         CC",user->nick);
 787         WriteServ(user->fd,"371 %s :                 Piggles",user->nick);
 788         WriteServ(user->fd,"371 %s :                 Foamy",user->nick);
 789         WriteServ(user->fd,"371 %s :                 Hart",user->nick);
 790         WriteServ(user->fd,"371 %s :                 RageD",user->nick);
 791         WriteServ(user->fd,"371 %s :                 [ed]",user->nick);
 792         WriteServ(user->fd,"371 %s :                 Azhrarn",user->nick);
 793         WriteServ(user->fd,"371 %s :                 nenolod",user->nick);
 794         WriteServ(user->fd,"371 %s :                 luigiman",user->nick);
 795         WriteServ(user->fd,"371 %s :                 Chu",user->nick);
 796         WriteServ(user->fd,"371 %s :                 aquanight",user->nick);
 797         WriteServ(user->fd,"371 %s :                 xptek",user->nick);
 798         WriteServ(user->fd,"371 %s :                 Grantlinks",user->nick);
 799         WriteServ(user->fd,"371 %s :                 Rob",user->nick);
 800         WriteServ(user->fd,"371 %s :                 angelic",user->nick);
 801         WriteServ(user->fd,"371 %s :                 Jason",user->nick);
 802         WriteServ(user->fd,"371 %s : ",user->nick);
 803         WriteServ(user->fd,"371 %s :Thanks to irc-junkie and searchirc",user->nick);
 804         WriteServ(user->fd,"371 %s :for the nice comments and the help",user->nick);
 805         WriteServ(user->fd,"371 %s :you gave us in attracting users to",user->nick);
 806         WriteServ(user->fd,"371 %s :this software.",user->nick);
 807         WriteServ(user->fd,"371 %s : ",user->nick);
 808         WriteServ(user->fd,"371 %s :Best experienced with: An IRC client.",user->nick);
 809         FOREACH_MOD OnInfo(user);
 810         WriteServ(user->fd,"374 %s :End of /INFO list",user->nick);
 811 }
 812
 813 void handle_time(char **parameters, int pcnt, userrec *user)
 814 {
 815         time_t rawtime;
 816         struct tm * timeinfo;
 817
 818         time ( &rawtime );
 819         timeinfo = localtime ( &rawtime );
 820         WriteServ(user->fd,"391 %s %s :%s",user->nick,ServerName, asctime (timeinfo) );
 821
 822 }
 823
 824 void handle_whois(char **parameters, int pcnt, userrec *user)
 825 {
 826         userrec *dest;
 827         char *t;
 828
 829         if (loop_call(handle_whois,parameters,pcnt,user,0,pcnt-1,0))
 830                 return;
 831         dest = Find(parameters[0]);
 832         if (dest)
 833         {
 834                 // bug found by phidjit - were able to whois an incomplete connection if it had sent a NICK or USER
 835                 if (dest->registered == 7)
 836                 {
 837                         WriteServ(user->fd,"311 %s %s %s %s * :%s",user->nick, dest->nick, dest->ident, dest->dhost, dest->fullname);
 838                         if ((user == dest) || (strchr(user->modes,'o')))
 839                         {
 840                                 WriteServ(user->fd,"378 %s %s :is connecting from *@%s",user->nick, dest->nick, dest->host);
 841                         }
 842                         if (strcmp(chlist(dest),""))
 843                         {
 844                                 WriteServ(user->fd,"319 %s %s :%s",user->nick, dest->nick, chlist(dest));
 845                         }
 846                         WriteServ(user->fd,"312 %s %s %s :%s",user->nick, dest->nick, dest->server, GetServerDescription(dest->server).c_str());
 847                         if (strcmp(dest->awaymsg,""))
 848                         {
 849                                 WriteServ(user->fd,"301 %s %s :%s",user->nick, dest->nick, dest->awaymsg);
 850                         }
 851                         if ((strchr(dest->modes,'o')) && (strcmp(dest->oper,"")))
 852                         {
 853                                 WriteServ(user->fd,"313 %s %s :is %s %s on %s",user->nick, dest->nick,
 854                                 (strchr("aeiou",dest->oper[0]) ? "an" : "a"),dest->oper, Network);
 855                         }
 856                         FOREACH_MOD OnWhois(user,dest);
 857                         if (!strcasecmp(user->server,dest->server))
 858                         {
 859                                 // idle time and signon line can only be sent if youre on the same server (according to RFC)
 860                                 WriteServ(user->fd,"317 %s %s %d %d :seconds idle, signon time",user->nick, dest->nick, abs((dest->idle_lastmsg)-TIME), dest->signon);
 861                         }
 862
 863                         WriteServ(user->fd,"318 %s %s :End of /WHOIS list.",user->nick, dest->nick);
 864                 }
 865                 else
 866                 {
 867                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
 868                 }
 869         }
 870         else
 871         {
 872                 /* no such nick/channel */
 873                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
 874         }
 875 }
 876
 877 void handle_quit(char **parameters, int pcnt, userrec *user)
 878 {
 879         user_hash::iterator iter = clientlist.find(user->nick);
 880         char* reason;
 881
 882         if (user->registered == 7)
 883         {
 884                 /* theres more to do here, but for now just close the socket */
 885                 if (pcnt == 1)
 886                 {
 887                         if (parameters[0][0] == ':')
 888                         {
 889                                 *parameters[0]++;
 890                         }
 891                         reason = parameters[0];
 892
 893                         if (strlen(reason)>MAXQUIT)
 894                         {
 895                                 reason[MAXQUIT-1] = '\0';
 896                         }
 897
 898                         Write(user->fd,"ERROR :Closing link (%s@%s) [%s]",user->ident,user->host,parameters[0]);
 899                         WriteOpers("*** Client exiting: %s!%s@%s [%s]",user->nick,user->ident,user->host,parameters[0]);
 900                         WriteCommonExcept(user,"QUIT :%s%s",PrefixQuit,parameters[0]);
 901
 902                         char buffer[MAXBUF];
 903                         snprintf(buffer,MAXBUF,"Q %s :%s%s",user->nick,PrefixQuit,parameters[0]);
 904                         NetSendToAll(buffer);
 905                 }
 906                 else
 907                 {
 908                         Write(user->fd,"ERROR :Closing link (%s@%s) [QUIT]",user->ident,user->host);
 909                         WriteOpers("*** Client exiting: %s!%s@%s [Client exited]",user->nick,user->ident,user->host);
 910                         WriteCommonExcept(user,"QUIT :Client exited");
 911
 912                         char buffer[MAXBUF];
 913                         snprintf(buffer,MAXBUF,"Q %s :Client exited",user->nick);
 914                         NetSendToAll(buffer);
 915                 }
 916                 FOREACH_MOD OnUserQuit(user);
 917                 AddWhoWas(user);
 918         }
 919
 920         /* push the socket on a stack of sockets due to be closed at the next opportunity */
 921         fd_reap.push_back(user->fd);
 922
 923         if (iter != clientlist.end())
 924         {
 925                 clientlist.erase(iter);
 926                 log(DEBUG,"deleting user hash value %d",iter->second);
 927                 //if ((user) && (user->registered == 7)) {
 928                         //delete user;
 929                 //}
 930         }
 931
 932         if (user->registered == 7) {
 933                 purge_empty_chans();
 934         }
 935 }
 936
 937 void handle_who(char **parameters, int pcnt, userrec *user)
 938 {
 939         chanrec* Ptr = NULL;
 940         char tmp[10];
 941
 942         /* theres more to do here, but for now just close the socket */
 943         if (pcnt == 1)
 944         {
 945                 if ((!strcmp(parameters[0],"0")) || (!strcmp(parameters[0],"*")))
 946                 {
 947                         if (user->chans[0].channel)
 948                         {
 949                                 int n_list = 0;
 950                                 for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
 951                                 {
 952                                         Ptr = i->second->chans[0].channel;
 953                                         // suggested by phidjit and FCS
 954                                         if ((!common_channels(user,i->second)) && (isnick(i->second->nick)))
 955                                         {
 956                                                 // Bug Fix #29
 957                                                 strcpy(tmp, "");
 958                                                 if (strcmp(i->second->awaymsg, "")) {
 959                                                         strncat(tmp, "G", 9);
 960                                                 } else {
 961                                                         strncat(tmp, "H", 9);
 962                                                 }
 963                                                 if (strchr(i->second->modes,'o')) { strncat(tmp, "*", 9); }
 964                                                 WriteServ(user->fd,"352 %s %s %s %s %s %s %s :0 %s",user->nick, Ptr ? Ptr->name : "*", i->second->ident, i->second->dhost, i->second->server, i->second->nick, tmp, i->second->fullname);
 965                                                 n_list++;
 966                                                 if (n_list > MaxWhoResults)
 967                                                         break;
 968                                         }
 969                                 }
 970                         }
 971                         if (Ptr)
 972                         {
 973                                 WriteServ(user->fd,"315 %s %s :End of /WHO list.",user->nick , parameters[0]);
 974                         }
 975                         else
 976                         {
 977                                 WriteServ(user->fd,"315 %s %s :End of /WHO list.",user->nick, parameters[0]);
 978                         }
 979                         return;
 980                 }
 981                 if (parameters[0][0] == '#')
 982                 {
 983                         Ptr = FindChan(parameters[0]);
 984                         if (Ptr)
 985                         {
 986                                 for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
 987                                 {
 988                                         if ((has_channel(i->second,Ptr)) && (isnick(i->second->nick)))
 989                                         {
 990                                                 // Fix Bug #29 - Part 2..
 991                                                 strcpy(tmp, "");
 992                                                 if (strcmp(i->second->awaymsg, "")) {
 993                                                         strncat(tmp, "G", 9);
 994                                                 } else {
 995                                                         strncat(tmp, "H", 9);
 996                                                 }
 997                                                 if (strchr(i->second->modes,'o')) { strncat(tmp, "*", 9); }
 998                                                 strcat(tmp, cmode(i->second, Ptr));
 999                                                 WriteServ(user->fd,"352 %s %s %s %s %s %s %s :0 %s",user->nick, Ptr->name, i->second->ident, i->second->dhost, i->second->server, i->second->nick, tmp, i->second->fullname);
1000                                         }
1001                                 }
1002                                 WriteServ(user->fd,"315 %s %s :End of /WHO list.",user->nick, parameters[0]);
1003                         }
1004                         else
1005                         {
1006                                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
1007                         }
1008                 }
1009                 else
1010                 {
1011                         userrec* u = Find(parameters[0]);
1012                         if (u)
1013                         {
1014                                 // Bug Fix #29 -- Part 29..
1015                                 strcpy(tmp, "");
1016                                 if (strcmp(u->awaymsg, "")) {
1017                                         strncat(tmp, "G" ,9);
1018                                 } else {
1019                                         strncat(tmp, "H" ,9);
1020                                 }
1021                                 if (strchr(u->modes,'o')) { strncat(tmp, "*" ,9); }
1022                                 WriteServ(user->fd,"352 %s %s %s %s %s %s %s :0 %s",user->nick, u->nick, u->ident, u->dhost, u->server, u->nick, tmp, u->fullname);
1023                         }
1024                         WriteServ(user->fd,"315 %s %s :End of /WHO list.",user->nick, parameters[0]);
1025                 }
1026         }
1027         if (pcnt == 2)
1028         {
1029                 if ((!strcmp(parameters[0],"0")) || (!strcmp(parameters[0],"*")) && (!strcmp(parameters[1],"o")))
1030                 {
1031                         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
1032                         {
1033                                 if ((common_channels(user,i->second)) && (isnick(i->second->nick)))
1034                                 {
1035                                         if (strchr(i->second->modes,'o'))
1036                                         {
1037                                                 // If i were a rich man.. I wouldn't need to me making these bugfixes..
1038                                                 // But i'm a poor bastard with nothing better to do.
1039                                                 strcpy(tmp, "");
1040                                                 if (strcmp(i->second->awaymsg, "")) {
1041                                                         strncat(tmp, "G" ,9);
1042                                                 } else {
1043                                                         strncat(tmp, "H" ,9);
1044                                                 }
1045
1046                                                 WriteServ(user->fd,"352 %s %s %s %s %s %s %s* :0 %s",user->nick, user->nick, i->second->ident, i->second->dhost, i->second->server, i->second->nick, tmp, i->second->fullname);
1047                                         }
1048                                 }
1049                         }
1050                         WriteServ(user->fd,"315 %s %s :End of /WHO list.",user->nick, parameters[0]);
1051                         return;
1052                 }
1053         }
1054 }
1055
1056 void handle_wallops(char **parameters, int pcnt, userrec *user)
1057 {
1058         WriteWallOps(user,false,"%s",parameters[0]);
1059 }
1060
1061 void handle_list(char **parameters, int pcnt, userrec *user)
1062 {
1063         chanrec* Ptr;
1064
1065         WriteServ(user->fd,"321 %s Channel :Users Name",user->nick);
1066         for (chan_hash::const_iterator i = chanlist.begin(); i != chanlist.end(); i++)
1067         {
1068                 if ((!i->second->c_private) && (!i->second->secret))
1069                 {
1070                         WriteServ(user->fd,"322 %s %s %d :[+%s] %s",user->nick,i->second->name,usercount_i(i->second),chanmodes(i->second),i->second->topic);
1071                 }
1072         }
1073         WriteServ(user->fd,"323 %s :End of channel list.",user->nick);
1074 }
1075
1076
1077 void handle_rehash(char **parameters, int pcnt, userrec *user)
1078 {
1079         WriteServ(user->fd,"382 %s %s :Rehashing",user->nick,CleanFilename(CONFIG_FILE));
1080         ReadConfig(false,user);
1081         FOREACH_MOD OnRehash();
1082         WriteOpers("%s is rehashing config file %s",user->nick,CleanFilename(CONFIG_FILE));
1083 }
1084
1085 void handle_lusers(char **parameters, int pcnt, userrec *user)
1086 {
1087         WriteServ(user->fd,"251 %s :There are %d users and %d invisible on %d servers",user->nick,usercnt()-usercount_invisible(),usercount_invisible(),servercount());
1088         WriteServ(user->fd,"252 %s %d :operator(s) online",user->nick,usercount_opers());
1089         WriteServ(user->fd,"253 %s %d :unknown connections",user->nick,usercount_unknown());
1090         WriteServ(user->fd,"254 %s %d :channels formed",user->nick,chancount());
1091         WriteServ(user->fd,"254 %s :I have %d clients and %d servers",user->nick,local_count(),count_servs());
1092 }
1093
1094 void handle_admin(char **parameters, int pcnt, userrec *user)
1095 {
1096         WriteServ(user->fd,"256 %s :Administrative info for %s",user->nick,ServerName);
1097         WriteServ(user->fd,"257 %s :Name     - %s",user->nick,AdminName);
1098         WriteServ(user->fd,"258 %s :Nickname - %s",user->nick,AdminNick);
1099         WriteServ(user->fd,"258 %s :E-Mail   - %s",user->nick,AdminEmail);
1100 }
1101
1102 void handle_ping(char **parameters, int pcnt, userrec *user)
1103 {
1104         WriteServ(user->fd,"PONG %s :%s",ServerName,parameters[0]);
1105 }
1106
1107 void handle_pong(char **parameters, int pcnt, userrec *user)
1108 {
1109         // set the user as alive so they survive to next ping
1110         user->lastping = 1;
1111 }
1112
1113 void handle_motd(char **parameters, int pcnt, userrec *user)
1114 {
1115         ShowMOTD(user);
1116 }
1117
1118 void handle_rules(char **parameters, int pcnt, userrec *user)
1119 {
1120         ShowRULES(user);
1121 }
1122
1123 void handle_user(char **parameters, int pcnt, userrec *user)
1124 {
1125         if (user->registered < 3)
1126         {
1127                 if (isident(parameters[0]) == 0) {
1128                         // This kinda Sucks, According to the RFC thou, its either this,
1129                         // or "You have already registered" :p -- Craig
1130                         WriteServ(user->fd,"461 %s USER :Not enough parameters",user->nick);
1131                 }
1132                 else {
1133                         WriteServ(user->fd,"NOTICE Auth :No ident response, ident prefixed with ~");
1134                         strcpy(user->ident,"~"); /* we arent checking ident... but these days why bother anyway? */
1135                         strlcat(user->ident,parameters[0],IDENTMAX);
1136                         strlcpy(user->fullname,parameters[3],128);
1137                         user->registered = (user->registered | 1);
1138                 }
1139         }
1140         else
1141         {
1142                 WriteServ(user->fd,"462 %s :You may not reregister",user->nick);
1143                 return;
1144         }
1145         /* parameters 2 and 3 are local and remote hosts, ignored when sent by client connection */
1146         if (user->registered == 3)
1147         {
1148                 /* user is registered now, bit 0 = USER command, bit 1 = sent a NICK command */
1149                 ConnectUser(user);
1150         }
1151 }
1152
1153 void handle_userhost(char **parameters, int pcnt, userrec *user)
1154 {
1155         char Return[MAXBUF],junk[MAXBUF];
1156         snprintf(Return,MAXBUF,"302 %s :",user->nick);
1157         for (int i = 0; i < pcnt; i++)
1158         {
1159                 userrec *u = Find(parameters[i]);
1160                 if (u)
1161                 {
1162                         if (strchr(u->modes,'o'))
1163                         {
1164                                 snprintf(junk,MAXBUF,"%s*=+%s@%s ",u->nick,u->ident,u->host);
1165                                 strlcat(Return,junk,MAXBUF);
1166                         }
1167                         else
1168                         {
1169                                 snprintf(junk,MAXBUF,"%s=+%s@%s ",u->nick,u->ident,u->host);
1170                                 strlcat(Return,junk,MAXBUF);
1171                         }
1172                 }
1173         }
1174         WriteServ(user->fd,Return);
1175 }
1176
1177
1178 void handle_ison(char **parameters, int pcnt, userrec *user)
1179 {
1180         char Return[MAXBUF];
1181         snprintf(Return,MAXBUF,"303 %s :",user->nick);
1182         for (int i = 0; i < pcnt; i++)
1183         {
1184                 userrec *u = Find(parameters[i]);
1185                 if (u)
1186                 {
1187                         strlcat(Return,u->nick,MAXBUF);
1188                         strlcat(Return," ",MAXBUF);
1189                 }
1190         }
1191         WriteServ(user->fd,Return);
1192 }
1193
1194
1195 void handle_away(char **parameters, int pcnt, userrec *user)
1196 {
1197         if (pcnt)
1198         {
1199                 strlcpy(user->awaymsg,parameters[0],512);
1200                 WriteServ(user->fd,"306 %s :You have been marked as being away",user->nick);
1201         }
1202         else
1203         {
1204                 strlcpy(user->awaymsg,"",512);
1205                 WriteServ(user->fd,"305 %s :You are no longer marked as being away",user->nick);
1206         }
1207 }
1208
1209 void handle_whowas(char **parameters, int pcnt, userrec* user)
1210 {
1211         user_hash::iterator i = whowas.find(parameters[0]);
1212
1213         if (i == whowas.end())
1214         {
1215                 WriteServ(user->fd,"406 %s %s :There was no such nickname",user->nick,parameters[0]);
1216                 WriteServ(user->fd,"369 %s %s :End of WHOWAS",user->nick,parameters[0]);
1217         }
1218         else
1219         {
1220                 time_t rawtime = i->second->signon;
1221                 tm *timeinfo;
1222                 char b[MAXBUF];
1223
1224                 timeinfo = localtime(&rawtime);
1225                 strlcpy(b,asctime(timeinfo),MAXBUF);
1226                 b[strlen(b)-1] = '\0';
1227
1228                 WriteServ(user->fd,"314 %s %s %s %s * :%s",user->nick,i->second->nick,i->second->ident,i->second->dhost,i->second->fullname);
1229                 WriteServ(user->fd,"312 %s %s %s :%s",user->nick,i->second->nick,i->second->server,b);
1230                 WriteServ(user->fd,"369 %s %s :End of WHOWAS",user->nick,parameters[0]);
1231         }
1232
1233 }
1234
1235 void handle_trace(char **parameters, int pcnt, userrec *user)
1236 {
1237         for (user_hash::iterator i = clientlist.begin(); i != clientlist.end(); i++)
1238         {
1239                 if (i->second)
1240                 {
1241                         if (isnick(i->second->nick))
1242                         {
1243                                 if (strchr(i->second->modes,'o'))
1244                                 {
1245                                         WriteServ(user->fd,"205 %s :Oper 0 %s",user->nick,i->second->nick);
1246                                 }
1247                                 else
1248                                 {
1249                                         WriteServ(user->fd,"204 %s :User 0 %s",user->nick,i->second->nick);
1250                                 }
1251                         }
1252                         else
1253                         {
1254                                 WriteServ(user->fd,"203 %s :???? 0 [%s]",user->nick,i->second->host);
1255                         }
1256                 }
1257         }
1258 }
1259
1260 void handle_modules(char **parameters, int pcnt, userrec *user)
1261 {
1262         for (int i = 0; i < module_names.size(); i++)
1263         {
1264                 Version V = modules[i]->GetVersion();
1265                 char modulename[MAXBUF];
1266                 char flagstate[MAXBUF];
1267                 strcpy(flagstate,"");
1268                 if (V.Flags & VF_STATIC)
1269                         strlcat(flagstate,", static",MAXBUF);
1270                 if (V.Flags & VF_VENDOR)
1271                         strlcat(flagstate,", vendor",MAXBUF);
1272                 if (V.Flags & VF_COMMON)
1273                         strlcat(flagstate,", common",MAXBUF);
1274                 if (V.Flags & VF_SERVICEPROVIDER)
1275                         strlcat(flagstate,", service provider",MAXBUF);
1276                 if (!strlen(flagstate))
1277                         strcpy(flagstate,"  <no flags>");
1278                 strlcpy(modulename,module_names[i].c_str(),256);
1279                 if (strchr(user->modes,'o'))
1280                 {
1281                         WriteServ(user->fd,"900 %s :0x%08lx %d.%d.%d.%d %s (%s)",user->nick,modules[i],V.Major,V.Minor,V.Revision,V.Build,CleanFilename(modulename),flagstate+2);
1282                 }
1283                 else
1284                 {
1285                         WriteServ(user->fd,"900 %s :%s",user->nick,CleanFilename(modulename));
1286                 }
1287         }
1288 }
1289
1290 void handle_stats(char **parameters, int pcnt, userrec *user)
1291 {
1292         char Link_ServerName[MAXBUF],Link_IPAddr[MAXBUF],Link_Port[MAXBUF];
1293         if (pcnt != 1)
1294         {
1295                 return;
1296         }
1297         if (strlen(parameters[0])>1)
1298         {
1299                 /* make the stats query 1 character long */
1300                 parameters[0][1] = '\0';
1301         }
1302
1303
1304         if (!strcasecmp(parameters[0],"c"))
1305         {
1306                 for (int i = 0; i < ConfValueEnum("link",&config_f); i++)
1307                 {
1308                         ConfValue("link","name",i,Link_ServerName,&config_f);
1309                         ConfValue("link","ipaddr",i,Link_IPAddr,&config_f);
1310                         ConfValue("link","port",i,Link_Port,&config_f);
1311                         WriteServ(user->fd,"213 %s C *@%s * %s %s 0 M",user->nick,Link_IPAddr,Link_ServerName,Link_Port);
1312                         WriteServ(user->fd,"244 %s H * * %s",user->nick,Link_ServerName);
1313                 }
1314         }
1315
1316         if (!strcasecmp(parameters[0],"i"))
1317         {
1318                 int idx = 0;
1319                 for (ClassVector::iterator i = Classes.begin(); i != Classes.end(); i++)
1320                 {
1321                         WriteServ(user->fd,"215 %s I * * * %d %d %s *",user->nick,MAXCLIENTS,idx,ServerName);
1322                         idx++;
1323                 }
1324         }
1325
1326         if (!strcasecmp(parameters[0],"y"))
1327         {
1328                 int idx = 0;
1329                 for (ClassVector::iterator i = Classes.begin(); i != Classes.end(); i++)
1330                 {
1331                         WriteServ(user->fd,"218 %s Y %d %d 0 %d %d",user->nick,idx,120,i->flood,i->registration_timeout);
1332                         idx++;
1333                 }
1334         }
1335
1336         if (!strcmp(parameters[0],"U"))
1337         {
1338                 for (int i = 0; i < ConfValueEnum("uline",&config_f); i++)
1339                 {
1340                         ConfValue("uline","server",i,Link_ServerName,&config_f);
1341                         WriteServ(user->fd,"248 %s U %s",user->nick,Link_ServerName);
1342                 }
1343         }
1344
1345         if (!strcmp(parameters[0],"P"))
1346         {
1347                 int idx = 0;
1348                 for (user_hash::iterator i = clientlist.begin(); i != clientlist.end(); i++)
1349                 {
1350                         if (strchr(i->second->modes,'o'))
1351                         {
1352                                 WriteServ(user->fd,"249 %s :%s (%s@%s) Idle: %d",user->nick,i->second->nick,i->second->ident,i->second->dhost,(TIME - i->second->idle_lastmsg));
1353                                 idx++;
1354                         }
1355                 }
1356                 WriteServ(user->fd,"249 %s :%d OPER(s)",user->nick,idx);
1357         //249 [Brain] :bwoadway-monitor (~wgmon@204.152.186.58) Idle: 18
1358         }
1359
1360         if (!strcmp(parameters[0],"k"))
1361         {
1362                 stats_k(user);
1363         }
1364
1365         if (!strcmp(parameters[0],"g"))
1366         {
1367                 stats_g(user);
1368         }
1369
1370         if (!strcmp(parameters[0],"q"))
1371         {
1372                 stats_q(user);
1373         }
1374
1375         if (!strcmp(parameters[0],"Z"))
1376         {
1377                 stats_z(user);
1378         }
1379
1380         if (!strcmp(parameters[0],"e"))
1381         {
1382                 stats_e(user);
1383         }
1384
1385         /* stats m (list number of times each command has been used, plus bytecount) */
1386         if (!strcmp(parameters[0],"m"))
1387         {
1388                 for (int i = 0; i < cmdlist.size(); i++)
1389                 {
1390                         if (cmdlist[i].handler_function)
1391                         {
1392                                 if (cmdlist[i].use_count)
1393                                 {
1394                                         /* RPL_STATSCOMMANDS */
1395                                         WriteServ(user->fd,"212 %s %s %d %d",user->nick,cmdlist[i].command,cmdlist[i].use_count,cmdlist[i].total_bytes);
1396                                 }
1397                         }
1398                 }
1399
1400         }
1401
1402         /* stats z (debug and memory info) */
1403         if (!strcmp(parameters[0],"z"))
1404         {
1405                 WriteServ(user->fd,"249 %s :Users(HASH_MAP) %d (%d bytes, %d buckets)",user->nick,clientlist.size(),clientlist.size()*sizeof(userrec),clientlist.bucket_count());
1406                 WriteServ(user->fd,"249 %s :Channels(HASH_MAP) %d (%d bytes, %d buckets)",user->nick,chanlist.size(),chanlist.size()*sizeof(chanrec),chanlist.bucket_count());
1407                 WriteServ(user->fd,"249 %s :Commands(VECTOR) %d (%d bytes)",user->nick,cmdlist.size(),cmdlist.size()*sizeof(command_t));
1408                 WriteServ(user->fd,"249 %s :MOTD(VECTOR) %d, RULES(VECTOR) %d",user->nick,MOTD.size(),RULES.size());
1409                 WriteServ(user->fd,"249 %s :address_cache(HASH_MAP) %d (%d buckets)",user->nick,IP.size(),IP.bucket_count());
1410                 WriteServ(user->fd,"249 %s :Modules(VECTOR) %d (%d)",user->nick,modules.size(),modules.size()*sizeof(Module));
1411                 WriteServ(user->fd,"249 %s :ClassFactories(VECTOR) %d (%d)",user->nick,factory.size(),factory.size()*sizeof(ircd_module));
1412                 WriteServ(user->fd,"249 %s :Ports(STATIC_ARRAY) %d",user->nick,boundPortCount);
1413         }
1414
1415         /* stats o */
1416         if (!strcmp(parameters[0],"o"))
1417         {
1418                 for (int i = 0; i < ConfValueEnum("oper",&config_f); i++)
1419                 {
1420                         char LoginName[MAXBUF];
1421                         char HostName[MAXBUF];
1422                         char OperType[MAXBUF];
1423                         ConfValue("oper","name",i,LoginName,&config_f);
1424                         ConfValue("oper","host",i,HostName,&config_f);
1425                         ConfValue("oper","type",i,OperType,&config_f);
1426                         WriteServ(user->fd,"243 %s O %s * %s %s 0",user->nick,HostName,LoginName,OperType);
1427                 }
1428         }
1429
1430         /* stats l (show user I/O stats) */
1431         if (!strcmp(parameters[0],"l"))
1432         {
1433                 WriteServ(user->fd,"211 %s :server:port nick bytes_in cmds_in bytes_out cmds_out",user->nick);
1434                 for (user_hash::iterator i = clientlist.begin(); i != clientlist.end(); i++)
1435                 {
1436                         if (isnick(i->second->nick))
1437                         {
1438                                 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);
1439                         }
1440                         else
1441                         {
1442                                 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);
1443                         }
1444
1445                 }
1446         }
1447
1448         /* stats u (show server uptime) */
1449         if (!strcmp(parameters[0],"u"))
1450         {
1451                 time_t current_time = 0;
1452                 current_time = TIME;
1453                 time_t server_uptime = current_time - startup_time;
1454                 struct tm* stime;
1455                 stime = gmtime(&server_uptime);
1456                 /* i dont know who the hell would have an ircd running for over a year nonstop, but
1457                  * Craig suggested this, and it seemed a good idea so in it went */
1458                 if (stime->tm_year > 70)
1459                 {
1460                         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);
1461                 }
1462                 else
1463                 {
1464                         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);
1465                 }
1466         }
1467
1468         WriteServ(user->fd,"219 %s %s :End of /STATS report",user->nick,parameters[0]);
1469         WriteOpers("*** Notice: Stats '%s' requested by %s (%s@%s)",parameters[0],user->nick,user->ident,user->host);
1470
1471 }
1472
1473 void handle_connect(char **parameters, int pcnt, userrec *user)
1474 {
1475         char Link_ServerName[1024];
1476         char Link_IPAddr[1024];
1477         char Link_Port[1024];
1478         char Link_Pass[1024];
1479         int LinkPort;
1480         bool found = false;
1481
1482         for (int i = 0; i < ConfValueEnum("link",&config_f); i++)
1483         {
1484                 if (!found)
1485                 {
1486                         ConfValue("link","name",i,Link_ServerName,&config_f);
1487                         ConfValue("link","ipaddr",i,Link_IPAddr,&config_f);
1488                         ConfValue("link","port",i,Link_Port,&config_f);
1489                         ConfValue("link","sendpass",i,Link_Pass,&config_f);
1490                         log(DEBUG,"(%d) Comparing against name='%s', ipaddr='%s', port='%s', recvpass='%s'",i,Link_ServerName,Link_IPAddr,Link_Port,Link_Pass);
1491                         LinkPort = atoi(Link_Port);
1492                         if (match(Link_ServerName,parameters[0])) {
1493                                 found = true;
1494                                 break;
1495                         }
1496                 }
1497         }
1498
1499         if (!found) {
1500                 WriteServ(user->fd,"NOTICE %s :*** Failed to connect to %s: No servers matching this pattern are configured for linking.",user->nick,parameters[0]);
1501                 return;
1502         }
1503
1504         // TODO: Perform a check here to stop a server being linked twice!
1505
1506         WriteServ(user->fd,"NOTICE %s :*** Connecting to %s (%s) port %s...",user->nick,Link_ServerName,Link_IPAddr,Link_Port);
1507
1508         if (me[defaultRoute])
1509         {
1510                 me[defaultRoute]->BeginLink(Link_IPAddr,LinkPort,Link_Pass,Link_ServerName,me[defaultRoute]->port);
1511                 return;
1512         }
1513         else
1514         {
1515                 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);
1516         }
1517 }
1518
1519 void handle_squit(char **parameters, int pcnt, userrec *user)
1520 {
1521         // send out an squit across the mesh and then clear the server list (for local squit)
1522         if (!pcnt)
1523         {
1524                 WriteOpers("SQUIT command issued by %s",user->nick);
1525                 char buffer[MAXBUF];
1526                 snprintf(buffer,MAXBUF,"& %s",ServerName);
1527                 NetSendToAll(buffer);
1528                 DoSplitEveryone();
1529         }
1530         else
1531         {
1532                 WriteServ(user->fd,"NOTICE :*** Remote SQUIT not supported yet.");
1533         }
1534 }
1535
1536 void handle_links(char **parameters, int pcnt, userrec *user)
1537 {
1538         WriteServ(user->fd,"364 %s %s %s :0 %s",user->nick,ServerName,ServerName,ServerDesc);
1539         for (int j = 0; j < 32; j++)
1540         {
1541                 if (me[j] != NULL)
1542                 {
1543                         for (int k = 0; k < me[j]->connectors.size(); k++)
1544                         {
1545                                 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());
1546                         }
1547                 }
1548         }
1549         WriteServ(user->fd,"365 %s * :End of /LINKS list.",user->nick);
1550 }
1551
1552 void handle_map(char **parameters, int pcnt, userrec *user)
1553 {
1554         char line[MAXBUF];
1555         snprintf(line,MAXBUF,"006 %s :%s",user->nick,ServerName);
1556         while (strlen(line) < 50)
1557                 strcat(line," ");
1558         WriteServ(user->fd,"%s%d (%.2f%%)",line,local_count(),(float)(((float)local_count()/(float)registered_usercount())*100));
1559         for (int j = 0; j < 32; j++)
1560         {
1561                 if (me[j] != NULL)
1562                 {
1563                         for (int k = 0; k < me[j]->connectors.size(); k++)
1564                         {
1565                                 snprintf(line,MAXBUF,"006 %s :%c-%s",user->nick,islast(me[j]->connectors[k].GetServerName().c_str()),me[j]->connectors[k].GetServerName().c_str());
1566                                 while (strlen(line) < 50)
1567                                         strcat(line," ");
1568                                 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)registered_usercount())*100));
1569                         }
1570                 }
1571         }
1572         WriteServ(user->fd,"007 %s :End of /MAP",user->nick);
1573 }
1574
1575 bool is_uline(const char* server)
1576 {
1577         char ServName[MAXBUF];
1578         int i,j;
1579
1580         for (int i = 0; i < ConfValueEnum("uline",&config_f); i++)
1581         {
1582                 ConfValue("uline","server",i,ServName,&config_f);
1583                 if (!strcasecmp(server,ServName))
1584                 {
1585                         return true;
1586                 }
1587         }
1588         return false;
1589 }
1590
1591
1592 void handle_oper(char **parameters, int pcnt, userrec *user)
1593 {
1594         char LoginName[MAXBUF];
1595         char Password[MAXBUF];
1596         char OperType[MAXBUF];
1597         char TypeName[MAXBUF];
1598         char HostName[MAXBUF];
1599         char TheHost[MAXBUF];
1600         int i,j;
1601         bool found = false;
1602         bool fail2 = false;
1603         char global[MAXBUF];
1604
1605         snprintf(TheHost,MAXBUF,"%s@%s",user->ident,user->host);
1606
1607         for (int i = 0; i < ConfValueEnum("oper",&config_f); i++)
1608         {
1609                 ConfValue("oper","name",i,LoginName,&config_f);
1610                 ConfValue("oper","password",i,Password,&config_f);
1611                 ConfValue("oper","type",i,OperType,&config_f);
1612                 ConfValue("oper","host",i,HostName,&config_f);
1613                 if ((!strcmp(LoginName,parameters[0])) && (!strcmp(Password,parameters[1])) && (match(TheHost,HostName)))
1614                 {
1615                         fail2 = true;
1616                         for (j =0; j < ConfValueEnum("type",&config_f); j++)
1617                         {
1618                                 ConfValue("type","name",j,TypeName,&config_f);
1619
1620                                 if (!strcmp(TypeName,OperType))
1621                                 {
1622                                         /* found this oper's opertype */
1623                                         snprintf(global,MAXBUF,"| %s %s",user->nick,TypeName);
1624                                         NetSendToAll(global);
1625                                         ConfValue("type","host",j,HostName,&config_f);
1626                                         ChangeDisplayedHost(user,HostName);
1627                                         strlcpy(user->oper,TypeName,NICKMAX);
1628                                         found = true;
1629                                         fail2 = false;
1630                                         break;
1631                                 }
1632                         }
1633                 }
1634                 if (found)
1635                         break;
1636         }
1637         if (found)
1638         {
1639                 /* correct oper credentials */
1640                 WriteOpers("*** %s (%s@%s) is now an IRC operator of type %s",user->nick,user->ident,user->host,OperType);
1641                 WriteServ(user->fd,"381 %s :You are now an IRC operator of type %s",user->nick,OperType);
1642                 if (!strchr(user->modes,'o'))
1643                 {
1644                         strcat(user->modes,"o");
1645                         WriteServ(user->fd,"MODE %s :+o",user->nick);
1646                         snprintf(global,MAXBUF,"M %s +o",user->nick);
1647                         NetSendToAll(global);
1648                         FOREACH_MOD OnOper(user);
1649                         log(DEFAULT,"OPER: %s!%s@%s opered as type: %s",user->nick,user->ident,user->host,OperType);
1650                 }
1651         }
1652         else
1653         {
1654                 if (!fail2)
1655                 {
1656                         WriteServ(user->fd,"491 %s :Invalid oper credentials",user->nick);
1657                         WriteOpers("*** WARNING! Failed oper attempt by %s!%s@%s!",user->nick,user->ident,user->host);
1658                         log(DEFAULT,"OPER: Failed oper attempt by %s!%s@%s: user, host or password did not match.",user->nick,user->ident,user->host);
1659                 }
1660                 else
1661                 {
1662                         WriteServ(user->fd,"491 %s :Your oper block does not have a valid opertype associated with it",user->nick);
1663                         WriteOpers("*** CONFIGURATION ERROR! Oper block mismatch for OperType %s",OperType);
1664                         log(DEFAULT,"OPER: Failed oper attempt by %s!%s@%s: credentials valid, but oper type nonexistent.",user->nick,user->ident,user->host);
1665                 }
1666         }
1667         return;
1668 }
1669
1670 void handle_nick(char **parameters, int pcnt, userrec *user)
1671 {
1672         if (pcnt < 1)
1673         {
1674                 log(DEBUG,"not enough params for handle_nick");
1675                 return;
1676         }
1677         if (!parameters[0])
1678         {
1679                 log(DEBUG,"invalid parameter passed to handle_nick");
1680                 return;
1681         }
1682         if (!strlen(parameters[0]))
1683         {
1684                 log(DEBUG,"zero length new nick passed to handle_nick");
1685                 return;
1686         }
1687         if (!user)
1688         {
1689                 log(DEBUG,"invalid user passed to handle_nick");
1690                 return;
1691         }
1692         if (!user->nick)
1693         {
1694                 log(DEBUG,"invalid old nick passed to handle_nick");
1695                 return;
1696         }
1697         if (!strcasecmp(user->nick,parameters[0]))
1698         {
1699                 log(DEBUG,"old nick is new nick, skipping");
1700                 return;
1701         }
1702         else
1703         {
1704                 if (strlen(parameters[0]) > 1)
1705                 {
1706                         if (parameters[0][0] == ':')
1707                         {
1708                                 *parameters[0]++;
1709                         }
1710                 }
1711                 if (matches_qline(parameters[0]))
1712                 {
1713                         WriteOpers("*** Q-Lined nickname %s from %s!%s@%s: %s",parameters[0],user->nick,user->ident,user->host,matches_qline(parameters[0]));
1714                         WriteServ(user->fd,"432 %s %s :Invalid nickname: %s",user->nick,parameters[0],matches_qline(parameters[0]));
1715                         return;
1716                 }
1717                 if ((Find(parameters[0])) && (Find(parameters[0]) != user))
1718                 {
1719                         WriteServ(user->fd,"433 %s %s :Nickname is already in use.",user->nick,parameters[0]);
1720                         return;
1721                 }
1722         }
1723         if (isnick(parameters[0]) == 0)
1724         {
1725                 WriteServ(user->fd,"432 %s %s :Erroneous Nickname",user->nick,parameters[0]);
1726                 return;
1727         }
1728
1729         if (user->registered == 7)
1730         {
1731                 int MOD_RESULT = 0;
1732                 FOREACH_RESULT(OnUserPreNick(user,parameters[0]));
1733                 if (MOD_RESULT) {
1734                         // if a module returns true, the nick change is silently forbidden.
1735                         return;
1736                 }
1737
1738                 WriteCommon(user,"NICK %s",parameters[0]);
1739
1740                 // Q token must go to ALL servers!!!
1741                 char buffer[MAXBUF];
1742                 snprintf(buffer,MAXBUF,"n %s %s",user->nick,parameters[0]);
1743                 NetSendToAll(buffer);
1744         }
1745
1746         char oldnick[NICKMAX];
1747         strlcpy(oldnick,user->nick,NICKMAX);
1748
1749         /* change the nick of the user in the users_hash */
1750         user = ReHashNick(user->nick, parameters[0]);
1751         /* actually change the nick within the record */
1752         if (!user) return;
1753         if (!user->nick) return;
1754
1755         strlcpy(user->nick, parameters[0],NICKMAX);
1756
1757         log(DEBUG,"new nick set: %s",user->nick);
1758
1759         if (user->registered < 3)
1760         {
1761                 user->registered = (user->registered | 2);
1762                 // dont attempt to look up the dns until they pick a nick... because otherwise their pointer WILL change
1763                 // and unless we're lucky we'll get a duff one later on.
1764                 user->dns_done = (!lookup_dns(user->nick));
1765                 if (user->dns_done)
1766                         log(DEBUG,"Aborting dns lookup of %s because dns server experienced a failure.",user->nick);
1767         }
1768         if (user->registered == 3)
1769         {
1770                 /* user is registered now, bit 0 = USER command, bit 1 = sent a NICK command */
1771                 ConnectUser(user);
1772         }
1773         if (user->registered == 7)
1774         {
1775                 FOREACH_MOD OnUserPostNick(user,oldnick);
1776         }
1777 }
1778
1779
1780
1781 void handle_V(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
1782 {
1783         char* src = strtok(params," ");
1784         char* dest = strtok(NULL," :");
1785         char* text = strtok(NULL,"\r\n");
1786         text++;
1787
1788         userrec* user = Find(src);
1789         if (user)
1790         {
1791                 userrec* dst = Find(dest);
1792
1793                 if (dst)
1794                 {
1795                         WriteTo(user, dst, "NOTICE %s :%s", dst->nick, text);
1796                 }
1797                 else
1798                 {
1799                         chanrec* d = FindChan(dest);
1800                         if (d)
1801                         {
1802                                 ChanExceptSender(d, user, "NOTICE %s :%s", d->name, text);
1803                         }
1804                 }
1805         }
1806
1807 }
1808
1809
1810 void handle_P(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
1811 {
1812         char* src = strtok(params," ");
1813         char* dest = strtok(NULL," :");
1814         char* text = strtok(NULL,"\r\n");
1815         text++;
1816
1817         userrec* user = Find(src);
1818         if (user)
1819         {
1820                 userrec* dst = Find(dest);
1821
1822                 if (dst)
1823                 {
1824                         WriteTo(user, dst, "PRIVMSG %s :%s", dst->nick, text);
1825                 }
1826                 else
1827                 {
1828                         chanrec* d = FindChan(dest);
1829                         if (d)
1830                         {
1831                                 ChanExceptSender(d, user, "PRIVMSG %s :%s", d->name, text);
1832                         }
1833                 }
1834         }
1835
1836 }
1837
1838 void handle_i(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
1839 {
1840         char* nick = strtok(params," ");
1841         char* from = strtok(NULL," ");
1842         char* channel = strtok(NULL," ");
1843         userrec* u = Find(nick);
1844         userrec* user = Find(from);
1845         chanrec* c = FindChan(channel);
1846         if ((c) && (u) && (user))
1847         {
1848                 u->InviteTo(c->name);
1849                 WriteFrom(u->fd,user,"INVITE %s :%s",u->nick,c->name);
1850         }
1851 }
1852
1853 void handle_t(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
1854 {
1855         char* setby = strtok(params," ");
1856         char* channel = strtok(NULL," :");
1857         char* topic = strtok(NULL,"\r\n");
1858         topic++;
1859         userrec* u = Find(setby);
1860         chanrec* c = FindChan(channel);
1861         if ((c) && (u))
1862         {
1863                 WriteChannelLocal(c,u,"TOPIC %s :%s",c->name,topic);
1864                 strlcpy(c->topic,topic,MAXTOPIC);
1865                 strlcpy(c->setby,u->nick,NICKMAX);
1866                 c->topicset = TIME;
1867         }
1868 }
1869
1870
1871 void handle_T(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
1872 {
1873         char* tm = strtok(params," ");
1874         char* setby = strtok(NULL," ");
1875         char* channel = strtok(NULL," :");
1876         char* topic = strtok(NULL,"\r\n");
1877         topic++;
1878         time_t TS = atoi(tm);
1879         chanrec* c = FindChan(channel);
1880         if (c)
1881         {
1882                 // in the case of topics and TS, the *NEWER*
1883                 if (TS <= c->topicset)
1884                 {
1885                         WriteChannelLocal(c,NULL,"TOPIC %s :%s",c->name,topic);
1886                         strlcpy(c->topic,topic,MAXTOPIC);
1887                         strlcpy(c->setby,setby,NICKMAX);
1888                 }
1889         }
1890 }
1891
1892 void handle_M(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
1893 {
1894         char* pars[128];
1895         char original[MAXBUF],target[MAXBUF];
1896         strlcpy(original,params,MAXBUF);
1897         int index = 0;
1898         char* parameter = strtok(params," ");
1899         strlcpy(target,parameter,MAXBUF);
1900         while (parameter)
1901         {
1902                 if (parameter[0] == ':')
1903                         parameter++;
1904                 pars[index++] = parameter;
1905                 parameter = strtok(NULL," ");
1906         }
1907         log(DEBUG,"*** MODE: %s %s",pars[0],pars[1]);
1908         merge_mode(pars,index);
1909         if (FindChan(target))
1910         {
1911                 WriteChannelLocal(FindChan(target), NULL, "MODE %s",original);
1912         }
1913         if (Find(target))
1914         {
1915                 Write(Find(target)->fd,":%s MODE %s",ServerName,original);
1916         }
1917 }
1918
1919 // m is modes set by users only (not servers) valid targets are channels or users.
1920
1921 void handle_m(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
1922 {
1923         // m blah #chatspike +b *!test@*4
1924         char* pars[128];
1925         char original[MAXBUF];
1926         strlcpy(original,params,MAXBUF);
1927
1928         if (!strchr(params,' '))
1929         {
1930                 WriteOpers("WARNING! 'm' token in data stream without any parameters! Something fishy is going on!");
1931                 return;
1932         }
1933
1934         int index = 0;
1935
1936         char* src = strtok(params," ");
1937         userrec* user = Find(src);
1938
1939         if (user)
1940         {
1941                 log(DEBUG,"Found user: %s",user->nick);
1942                 char* parameter = strtok(NULL," ");
1943                 while (parameter)
1944                 {
1945                         pars[index++] = parameter;
1946                         parameter = strtok(NULL," ");
1947                 }
1948
1949                 log(DEBUG,"Calling merge_mode2");
1950                 merge_mode2(pars,index,user);
1951         }
1952 }
1953
1954
1955 void handle_L(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
1956 {
1957         char* nick = strtok(params," ");
1958         char* channel = strtok(NULL," :");
1959         char* reason = strtok(NULL,"\r\n");
1960         userrec* user = Find(nick);
1961         reason++;
1962         if (user)
1963         {
1964                 if (strcmp(reason,""))
1965                 {
1966                         del_channel(user,channel,reason,true);
1967                 }
1968                 else
1969                 {
1970                         del_channel(user,channel,NULL,true);
1971                 }
1972         }
1973 }
1974
1975 void handle_K(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
1976 {
1977         char* src = strtok(params," ");
1978         char* nick = strtok(NULL," :");
1979         char* reason = strtok(NULL,"\r\n");
1980         char kreason[MAXBUF];
1981         reason++;
1982
1983         userrec* u = Find(nick);
1984         userrec* user = Find(src);
1985
1986         if ((user) && (u))
1987         {
1988                 WriteTo(user, u, "KILL %s :%s!%s!%s!%s (%s)", u->nick, source->name, ServerName, user->dhost,user->nick,reason);
1989                 WriteOpers("*** Remote kill from %s by %s: %s!%s@%s (%s)",source->name,user->nick,u->nick,u->ident,u->host,reason);
1990                 snprintf(kreason,MAXBUF,"[%s] Killed (%s (%s))",source->name,user->nick,reason);
1991                 kill_link(u,kreason);
1992         }
1993 }
1994
1995 void handle_Q(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
1996 {
1997         char* nick = strtok(params," :");
1998         char* reason = strtok(NULL,"\r\n");
1999         reason++;
2000
2001         userrec* user = Find(nick);
2002
2003         if (user)
2004         {
2005                 if (strlen(reason)>MAXQUIT)
2006                 {
2007                         reason[MAXQUIT-1] = '\0';
2008                 }
2009
2010
2011                 WriteCommonExcept(user,"QUIT :%s",reason);
2012
2013                 user_hash::iterator iter = clientlist.find(user->nick);
2014
2015                 if (iter != clientlist.end())
2016                 {
2017                         log(DEBUG,"deleting user hash value %d",iter->second);
2018                         if ((iter->second) && (user->registered == 7)) {
2019                                 delete iter->second;
2020                         }
2021                         clientlist.erase(iter);
2022                 }
2023
2024                 purge_empty_chans();
2025         }
2026 }
2027
2028 void handle_n(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2029 {
2030         char* oldnick = strtok(params," ");
2031         char* newnick = strtok(NULL," ");
2032
2033         userrec* user = Find(oldnick);
2034
2035         if (user)
2036         {
2037                 WriteCommon(user,"NICK %s",newnick);
2038                 if (is_uline(tcp_host))
2039                 {
2040                         int MOD_RESULT = 0;
2041                         FOREACH_RESULT(OnUserPreNick(user,newnick));
2042                         if (MOD_RESULT) {
2043                                 // if a module returns true, the nick change couldnt be allowed
2044                                 kill_link(user,"Nickname collision");
2045                                 return;
2046                         }
2047                         if (matches_qline(newnick))
2048                         {
2049                                 kill_link(user,"Nickname collision");
2050                                 return;
2051                         }
2052
2053                         // broadcast this because its a services thingy
2054                         char buffer[MAXBUF];
2055                         snprintf(buffer,MAXBUF,"n %s %s",user->nick,newnick);
2056                         NetSendToAll(buffer);
2057                 }
2058                 user = ReHashNick(user->nick, newnick);
2059                 if (!user) return;
2060                 if (!user->nick) return;
2061                 strlcpy(user->nick, newnick,NICKMAX);
2062                 log(DEBUG,"new nick set: %s",user->nick);
2063         }
2064 }
2065
2066 // k <SOURCE> <DEST> <CHANNEL> :<REASON>
2067 void handle_k(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2068 {
2069         char* src = strtok(params," ");
2070         char* dest = strtok(NULL," ");
2071         char* channel = strtok(NULL," :");
2072         char* reason = strtok(NULL,"\r\n");
2073         reason++;
2074         userrec* s = Find(src);
2075         userrec* d = Find(dest);
2076         chanrec* c = FindChan(channel);
2077         if ((s) && (d) && (c))
2078         {
2079                 kick_channel(s,d,c,reason);
2080                 return;
2081         }
2082         d = Find(channel);
2083         c = FindChan(dest);
2084         if ((s) && (d) && (c))
2085         {
2086                 kick_channel(s,d,c,reason);
2087                 return;
2088         }
2089 }
2090
2091 void handle_AT(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2092 {
2093         char* who = strtok(params," :");
2094         char* text = strtok(NULL,"\r\n");
2095         text++;
2096         userrec* s = Find(who);
2097         if (s)
2098         {
2099                 WriteWallOps(s,true,text);
2100         }
2101 }
2102
2103 void handle_H(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2104 {
2105         log(DEBUG,"Adding ULined server %s to my map",params);
2106         ircd_connector s;
2107         s.SetState(STATE_DISCONNECTED);
2108         s.SetServerName(params);
2109
2110         for (int j = 0; j < 32; j++)
2111         {
2112                 if (me[j] != NULL)
2113                 {
2114                         for (int k = 0; k < me[j]->connectors.size(); k++)
2115                         {
2116                                 if (!strcasecmp(me[j]->connectors[k].GetServerName().c_str(),params))
2117                                 {
2118                                         // dont allow a server to be added twice
2119                                         log(DEBUG,"ULined server %s already in the map!",params);
2120                                         return;
2121                                 }
2122                         }
2123                 }
2124         }
2125
2126         source->connectors.push_back(s);
2127         WriteOpers("Non-Mesh server %s has joined the network",params);
2128 }
2129
2130 void handle_N(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2131 {
2132         char* tm = strtok(params," ");
2133         char* nick = strtok(NULL," ");
2134         char* host = strtok(NULL," ");
2135         char* dhost = strtok(NULL," ");
2136         char* ident = strtok(NULL," ");
2137         char* modes = strtok(NULL," ");
2138         char* ipaddr = strtok(NULL," ");
2139         char* server = strtok(NULL," :");
2140         char* gecos = strtok(NULL,"\r\n");
2141         gecos++;
2142         modes++;
2143         time_t TS = atoi(tm);
2144         user_hash::iterator iter = clientlist.find(nick);
2145         if (iter != clientlist.end())
2146         {
2147                 // nick collision
2148                 WriteOpers("Nickname collision: %s@%s != %s@%s",nick,server,iter->second->nick,iter->second->server);
2149                 char str[MAXBUF];
2150                 snprintf(str,MAXBUF,"Killed (Nick Collision (%s@%s < %s@%s))",nick,server,iter->second->nick,iter->second->server);
2151                 WriteServ(iter->second->fd, "KILL %s :%s",iter->second->nick,str);
2152                 kill_link(iter->second,str);
2153         }
2154         clientlist[nick] = new userrec();
2155         // remote users have an fd of -1. This is so that our Write abstraction
2156         // routines know to route any messages to this record away to whatever server
2157         // theyre on.
2158         clientlist[nick]->fd = -1;
2159         strlcpy(clientlist[nick]->nick, nick,NICKMAX);
2160         strlcpy(clientlist[nick]->host, host,160);
2161         strlcpy(clientlist[nick]->dhost, dhost,160);
2162         strlcpy(clientlist[nick]->server, server,256);
2163         strlcpy(clientlist[nick]->ident, ident,10); // +1 char to compensate for tilde
2164         strlcpy(clientlist[nick]->fullname, gecos,128);
2165         clientlist[nick]->signon = TS;
2166         clientlist[nick]->nping = 0; // this is ignored for a remote user anyway.
2167         clientlist[nick]->lastping = 1;
2168         clientlist[nick]->port = 0; // so is this...
2169         clientlist[nick]->registered = 7; // this however we need to set for them to receive messages and appear online
2170         clientlist[nick]->idle_lastmsg = TIME; // this is unrealiable and wont actually be used locally
2171         for (int i = 0; i < MAXCHANS; i++)
2172         {
2173                 clientlist[nick]->chans[i].channel = NULL;
2174                 clientlist[nick]->chans[i].uc_modes = 0;
2175         }
2176 }
2177
2178 void handle_F(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2179 {
2180         long tdiff = TIME - atoi(params);
2181         if (tdiff)
2182                 WriteOpers("TS split for %s -> %s: %d",source->name,reply->name,tdiff);
2183 }
2184
2185 void handle_a(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2186 {
2187         char* nick = strtok(params," :");
2188         char* gecos = strtok(NULL,"\r\n");
2189
2190         userrec* user = Find(nick);
2191
2192         if (user)
2193                 strlcpy(user->fullname,gecos,MAXBUF);
2194 }
2195
2196 void handle_b(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2197 {
2198         char* nick = strtok(params," ");
2199         char* host = strtok(NULL," ");
2200
2201         userrec* user = Find(nick);
2202
2203         if (user)
2204                 strlcpy(user->dhost,host,160);
2205 }
2206
2207 void handle_plus(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2208 {
2209         // %s %s %d %d
2210         // + test3.chatspike.net 7010 -2016508415
2211         char* servername = strtok(params," ");
2212         char* ipaddr = strtok(NULL," ");
2213         char* ipport = strtok(NULL," ");
2214         char* cookie = strtok(NULL," ");
2215         log(DEBUG,"*** Connecting back to %s:%d",ipaddr,atoi(ipport));
2216
2217
2218         bool conn_already = false;
2219         for (int i = 0; i < 32; i++)
2220         {
2221                 if (me[i] != NULL)
2222                 {
2223                         for (int j = 0; j < me[i]->connectors.size(); j++)
2224                         {
2225                                 if (!strcasecmp(me[i]->connectors[j].GetServerName().c_str(),servername))
2226                                 {
2227                                         if (me[i]->connectors[j].GetServerPort() == atoi(ipport))
2228                                         {
2229                                                 log(DEBUG,"Already got a connection to %s:%d, ignoring +",ipaddr,atoi(ipport));
2230                                                 conn_already = true;
2231                                         }
2232                                 }
2233                         }
2234                 }
2235         }
2236         if (!conn_already)
2237                 me[defaultRoute]->MeshCookie(ipaddr,atoi(ipport),atoi(cookie),servername);
2238 }
2239
2240 void handle_R(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2241 {
2242         char* server = strtok(params," ");
2243         char* data = strtok(NULL,"\r\n");
2244         if ((!data) || (!server))
2245         {
2246                 log(DEBUG,"Someones playing silly buggers, attempting to send to a null server or send a null message (BUG?)");
2247                 return;
2248         }
2249
2250         log(DEBUG,"Forwarded packet '%s' to '%s'",data,server);
2251         NetSendToOne(server,data);
2252 }
2253
2254 void handle_J(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2255 {
2256         // IMPORTANT NOTE
2257         // The J token currently has no timestamp - this needs looking at
2258         // because it will allow splitriding.
2259         char* nick = strtok(params," ");
2260         char* channel = strtok(NULL," ");
2261         userrec* user = Find(nick);
2262         while (channel)
2263         {
2264                 if ((user != NULL) && (strcmp(channel,"")))
2265                 {
2266                         char privilage = '\0';
2267                         if (channel[0] != '#')
2268                         {
2269                                 privilage = channel[0];
2270                                 channel++;
2271                         }
2272                         add_channel(user,channel,"",true);
2273
2274                         // now work out the privilages they should have on each channel
2275                         // and send the appropriate servermodes.
2276                         for (int i = 0; i != MAXCHANS; i++)
2277                         {
2278                                 if (user->chans[i].channel)
2279                                 {
2280                                         if (!strcasecmp(user->chans[i].channel->name,channel))
2281                                         {
2282                                                 if (privilage == '@')
2283                                                 {
2284                                                         user->chans[i].uc_modes = user->chans[i].uc_modes | UCMODE_OP;
2285                                                         WriteChannelLocal(user->chans[i].channel, NULL, "MODE %s +o %s",channel,user->nick);
2286                                                 }
2287                                                 if (privilage == '%')
2288                                                 {
2289                                                         user->chans[i].uc_modes = user->chans[i].uc_modes | UCMODE_HOP;
2290                                                         WriteChannelLocal(user->chans[i].channel, NULL, "MODE %s +h %s",channel,user->nick);
2291                                                 }
2292                                                 if (privilage == '+')
2293                                                 {
2294                                                         user->chans[i].uc_modes = user->chans[i].uc_modes | UCMODE_VOICE;
2295                                                         WriteChannelLocal(user->chans[i].channel, NULL, "MODE %s +v %s",channel,user->nick);
2296                                                 }
2297                                         }
2298                                 }
2299                         }
2300
2301                 }
2302                 channel = strtok(NULL," ");
2303         }
2304 }
2305
2306 void handle_dollar(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2307 {
2308         log(DEBUG,"Storing routing table...");
2309         char* sourceserver = strtok(params," ");
2310         char* server = strtok(NULL," ");
2311         for (int i = 0; i < 32; i++)
2312         {
2313                 if (me[i] != NULL)
2314                 {
2315                         for (int j = 0; j < me[i]->connectors.size(); j++)
2316                         {
2317                                 if (!strcasecmp(me[i]->connectors[j].GetServerName().c_str(),sourceserver))
2318                                 {
2319                                         me[i]->connectors[j].routes.clear();
2320                                         log(DEBUG,"Found entry for source server.");
2321                                         while (server)
2322                                         {
2323                                                 // store each route
2324                                                 me[i]->connectors[j].routes.push_back(server);
2325                                                 log(DEBUG,"*** Stored route: %s -> %s -> %s",ServerName,sourceserver,server);
2326                                                 server = strtok(NULL," ");
2327                                         }
2328                                         return;
2329                                 }
2330                         }
2331                 }
2332         }
2333         log(DEBUG,"Warning! routing table received from nonexistent server!");
2334 }
2335
2336 void handle_amp(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2337 {
2338         log(DEBUG,"Netsplit! %s split from mesh, removing!",params);
2339         WriteOpers("*** NOTICE - Controlled netsplit: %s split from %s",params,ServerName);
2340         bool go_again = true;
2341         while (go_again)
2342         {
2343                 go_again = false;
2344                 for (int i = 0; i < 32; i++)
2345                 {
2346                         if (me[i] != NULL)
2347                         {
2348                                 for (vector<ircd_connector>::iterator j = me[i]->connectors.begin(); j != me[i]->connectors.end(); j++)
2349                                 {
2350                                         if (!strcasecmp(j->GetServerName().c_str(),params))
2351                                         {
2352                                                 j->routes.clear();
2353                                                 j->CloseConnection();
2354                                                 me[i]->connectors.erase(j);
2355                                                 go_again = true;
2356                                                 break;
2357                                         }
2358                                 }
2359                         }
2360                 }
2361         }
2362         log(DEBUG,"Removed server. Will remove clients...");
2363         // iterate through the userlist and remove all users on this server.
2364         // because we're dealing with a mesh, we dont have to deal with anything
2365         // "down-route" from this server (nice huh)
2366         go_again = true;
2367         char reason[MAXBUF];
2368         snprintf(reason,MAXBUF,"%s %s",ServerName,params);
2369         while (go_again)
2370         {
2371                 go_again = false;
2372                 for (user_hash::const_iterator u = clientlist.begin(); u != clientlist.end(); u++)
2373                 {
2374                         if (!strcasecmp(u->second->server,params))
2375                         {
2376                                 kill_link(u->second,reason);
2377                                 go_again = true;
2378                                 break;
2379                         }
2380                 }
2381         }
2382 }
2383
2384 long authcookie;
2385
2386 void handle_hash(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2387 {
2388         // # <mask> <who-set-it> <time-set> <duration> :<reason>
2389         log(DEBUG,"Adding G-line");
2390         char* mask = strtok(params," ");
2391         char* who = strtok(NULL," ");
2392         char* create_time = strtok(NULL," ");
2393         char* duration = strtok(NULL," :");
2394         char* reason = strtok(NULL,"\r\n");
2395         add_gline(atoi(duration),(const char*)who,(const char*)reason,(const char*)mask);
2396         // we must update the creation time on this gline
2397         // now that we've added it, or it wont expire at the right time.
2398         gline_set_creation_time(mask,atoi(create_time));
2399         if (!atoi(duration))
2400         {
2401                 WriteOpers("*** %s Added permenant G-Line on %s.",who,mask);
2402         }
2403         else
2404         {
2405                 WriteOpers("*** %s Added timed G-Line on %s to expire in %d seconds.",who,mask,atoi(duration));
2406         }
2407         apply_lines();
2408 }
2409
2410 void handle_dot(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2411 {
2412         log(DEBUG,"Removing G-line");
2413         char* mask = strtok(params," ");
2414         char* who = strtok(NULL," ");
2415         if (mask)
2416         {
2417                 if (del_gline((const char*)mask))
2418                 {
2419                         if (who)
2420                         {
2421                                 WriteOpers("*** %s Removed G-line on %s.",who,mask);
2422                         }
2423                 }
2424         }
2425 }
2426
2427 void handle_add_sqline(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2428 {
2429         // { <mask> <who-set-it> <time-set> <duration> :<reason>
2430         log(DEBUG,"Adding Q-line");
2431         char* mask = strtok(params," ");
2432         char* who = strtok(NULL," ");
2433         char* create_time = strtok(NULL," ");
2434         char* duration = strtok(NULL," :");
2435         char* reason = strtok(NULL,"\r\n");
2436         add_qline(atoi(duration),(const char*)who,(const char*)reason,(const char*)mask);
2437         // we must update the creation time on this gline
2438         // now that we've added it, or it wont expire at the right time.
2439         qline_set_creation_time(mask,atoi(create_time));
2440         qline_make_global(mask);
2441         if (!atoi(duration))
2442         {
2443                 WriteOpers("*** %s Added permenant Q-Line on %s.",who,mask);
2444         }
2445         else
2446         {
2447                 WriteOpers("*** %s Added timed Q-Line on %s to expire in %d seconds.",who,mask,atoi(duration));
2448         }
2449         apply_lines();
2450 }
2451
2452 void handle_del_sqline(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2453 {
2454         log(DEBUG,"Removing Q-line");
2455         char* mask = strtok(params," ");
2456         char* who = strtok(NULL," ");
2457         if (mask)
2458         {
2459                 if (del_qline((const char*)mask))
2460                 {
2461                         if (who)
2462                         {
2463                                 WriteOpers("*** %s Removed Q-line on %s.",who,mask);
2464                         }
2465                 }
2466         }
2467 }
2468
2469 void handle_add_szline(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2470 {
2471         // } <mask> <who-set-it> <time-set> <duration> :<reason>
2472         log(DEBUG,"Adding Z-line");
2473         char* mask = strtok(params," ");
2474         char* who = strtok(NULL," ");
2475         char* create_time = strtok(NULL," ");
2476         char* duration = strtok(NULL," :");
2477         char* reason = strtok(NULL,"\r\n");
2478         add_zline(atoi(duration),(const char*)who,(const char*)reason,(const char*)mask);
2479         // we must update the creation time on this gline
2480         // now that we've added it, or it wont expire at the right time.
2481         zline_set_creation_time(mask,atoi(create_time));
2482         zline_make_global(mask);
2483         if (!atoi(duration))
2484         {
2485                 WriteOpers("*** %s Added permenant Z-Line on %s.",who,mask);
2486         }
2487         else
2488         {
2489                 WriteOpers("*** %s Added timed Z-Line on %s to expire in %d seconds.",who,mask,atoi(duration));
2490         }
2491         apply_lines();
2492 }
2493
2494 void handle_del_szline(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2495 {
2496         log(DEBUG,"Removing Z-line");
2497         char* mask = strtok(params," ");
2498         char* who = strtok(NULL," ");
2499         if (mask)
2500         {
2501                 if (del_zline((const char*)mask))
2502                 {
2503                         if (who)
2504                         {
2505                                 WriteOpers("*** %s Removed Q-line on %s.",who,mask);
2506                         }
2507                 }
2508         }
2509 }
2510
2511 void handle_pipe(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2512 {
2513         char* nick = strtok(params," ");
2514         char* type = strtok(params," ");
2515         userrec* u = Find(nick);
2516         if (u)
2517         {
2518                 strlcpy(u->oper,type,NICKMAX);
2519         }
2520 }
2521
2522
2523 void process_restricted_commands(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host,char* ipaddr,int port)
2524 {
2525         char buffer[MAXBUF];
2526
2527         switch(token)
2528         {
2529                 // Y <TS>
2530                 // start netburst
2531                 case 'Y':
2532                         nb_start = TIME;
2533                         WriteOpers("Server %s is starting netburst.",tcp_host);
2534                         // now broadcast this new servers address out to all servers that are linked to us,
2535                         // except the newcomer. They'll all attempt to connect back to it.
2536                         authcookie = rand()*rand();
2537                         snprintf(buffer,MAXBUF,"~ %d",authcookie);
2538                         NetSendToAll(buffer);
2539                 break;
2540                 // ~
2541                 // Store authcookie
2542                 // once stored, this authcookie permits other servers to log in
2543                 // without user or password, using it.
2544                 case '~':
2545                         auth_cookies.push_back(atoi(params));
2546                         log(DEBUG,"*** Stored auth cookie, will permit servers with auth-cookie %d",atoi(params));
2547                 break;
2548                 // connect back to a server using an authcookie
2549                 case '+':
2550                         handle_plus(token,params,source,reply,tcp_host);
2551                 break;
2552                 // routing table
2553                 case '$':
2554                         handle_dollar(token,params,source,reply,tcp_host);
2555                 break;
2556                 // node unreachable - we cant route to a server, sooooo we slit it off.
2557                 // servers can generate these for themselves for an squit.
2558                 case '&':
2559                         handle_amp(token,params,source,reply,tcp_host);
2560                 break;
2561                 // R <server> <data>
2562                 // redirect token, send all of <data> along to the given
2563                 // server as this server has been found to still have a route to it
2564                 case 'R':
2565                         handle_R(token,params,source,reply,tcp_host);
2566                 break;
2567                 // ?
2568                 // ping
2569                 case '?':
2570                         reply->SendPacket("!",tcp_host);
2571                 break;
2572                 // ?
2573                 // pong
2574                 case '!':
2575                 break;
2576                 // *
2577                 // no operation
2578                 case '*':
2579                 break;
2580                 // N <TS> <NICK> <HOST> <DHOST> <IDENT> <MODES> <SERVER> :<GECOS>
2581                 // introduce remote client
2582                 case 'N':
2583                         handle_N(token,params,source,reply,tcp_host);
2584                 break;
2585                 // a <NICK> :<GECOS>
2586                 // change GECOS (SETNAME)
2587                 case 'a':
2588                         handle_a(token,params,source,reply,tcp_host);
2589                 break;
2590                 // b <NICK> :<HOST>
2591                 // change displayed host (SETHOST)
2592                 case 'b':
2593                         handle_b(token,params,source,reply,tcp_host);
2594                 break;
2595                 // t <NICK> <CHANNEL> :<TOPIC>
2596                 // change a channel topic
2597                 case 't':
2598                         handle_t(token,params,source,reply,tcp_host);
2599                 break;
2600                 // i <NICK> <CHANNEL>
2601                 // invite a user to a channel
2602                 case 'i':
2603                         handle_i(token,params,source,reply,tcp_host);
2604                 break;
2605                 // k <SOURCE> <DEST> <CHANNEL> :<REASON>
2606                 // kick a user from a channel
2607                 case 'k':
2608                         handle_k(token,params,source,reply,tcp_host);
2609                 break;
2610                 // n <NICK> <NEWNICK>
2611                 // change nickname of client -- a server should only be able to
2612                 // change the nicknames of clients that reside on it unless
2613                 // they are ulined.
2614                 case 'n':
2615                         handle_n(token,params,source,reply,tcp_host);
2616                 break;
2617                 // J <NICK> <CHANLIST>
2618                 // Join user to channel list, merge channel permissions
2619                 case 'J':
2620                         handle_J(token,params,source,reply,tcp_host);
2621                 break;
2622                 // T <TS> <CHANNEL> <TOPICSETTER> :<TOPIC>
2623                 // change channel topic (netburst only)
2624                 case 'T':
2625                         handle_T(token,params,source,reply,tcp_host);
2626                 break;
2627                 // M <TARGET> <MODES> [MODE-PARAMETERS]
2628                 // Server setting modes on an object
2629                 case 'M':
2630                         handle_M(token,params,source,reply,tcp_host);
2631                 break;
2632                 // m <SOURCE> <TARGET> <MODES> [MODE-PARAMETERS]
2633                 // User setting modes on an object
2634                 case 'm':
2635                         handle_m(token,params,source,reply,tcp_host);
2636                 break;
2637                 // P <SOURCE> <TARGET> :<TEXT>
2638                 // Send a private/channel message
2639                 case 'P':
2640                         handle_P(token,params,source,reply,tcp_host);
2641                 break;
2642                 // V <SOURCE> <TARGET> :<TEXT>
2643                 // Send a private/channel notice
2644                 case 'V':
2645                         handle_V(token,params,source,reply,tcp_host);
2646                 break;
2647                 // L <SOURCE> <CHANNEL> :<REASON>
2648                 // User parting a channel
2649                 case 'L':
2650                         handle_L(token,params,source,reply,tcp_host);
2651                 break;
2652                 // Q <SOURCE> :<REASON>
2653                 // user quitting
2654                 case 'Q':
2655                         handle_Q(token,params,source,reply,tcp_host);
2656                 break;
2657                 // H <SERVER>
2658                 // introduce non-meshable server (such as a services server)
2659                 case 'H':
2660                         handle_H(token,params,source,reply,tcp_host);
2661                 break;
2662                 // K <SOURCE> <DEST> :<REASON>
2663                 // remote kill
2664                 case 'K':
2665                         handle_K(token,params,source,reply,tcp_host);
2666                 break;
2667                 // @ <SOURCE> :<TEXT>
2668                 // wallops
2669                 case '@':
2670                         handle_AT(token,params,source,reply,tcp_host);
2671                 break;
2672                 // # <mask> <who-set-it> <time-set> <duration> :<reason>
2673                 // add gline
2674                 case '#':
2675                         handle_hash(token,params,source,reply,tcp_host);
2676                 break;
2677                 // . <mask> <who>
2678                 // remove gline
2679                 case '.':
2680                         handle_dot(token,params,source,reply,tcp_host);
2681                 break;
2682                 // # <mask> <who-set-it> <time-set> <duration> :<reason>
2683                 // add gline
2684                 case '{':
2685                         handle_add_sqline(token,params,source,reply,tcp_host);
2686                 break;
2687                 // . <mask> <who>
2688                 // remove gline
2689                 case '[':
2690                         handle_del_sqline(token,params,source,reply,tcp_host);
2691                 break;
2692                 // # <mask> <who-set-it> <time-set> <duration> :<reason>
2693                 // add gline
2694                 case '}':
2695                         handle_add_szline(token,params,source,reply,tcp_host);
2696                 break;
2697                 // . <mask> <who>
2698                 // remove gline
2699                 case ']':
2700                         handle_del_szline(token,params,source,reply,tcp_host);
2701                 break;
2702                 // | <nick> <opertype>
2703                 // set opertype
2704                 case '|':
2705                         handle_pipe(token,params,source,reply,tcp_host);
2706                 break;
2707                 // F <TS>
2708                 // end netburst
2709                 case 'F':
2710                         WriteOpers("Server %s has completed netburst. (%d secs)",tcp_host,TIME-nb_start);
2711                         handle_F(token,params,source,reply,tcp_host);
2712                         nb_start = 0;
2713                         // tell all the other servers to use this authcookie to connect back again
2714                         // got '+ test3.chatspike.net 7010 -2016508415' from test.chatspike.net
2715                         snprintf(buffer,MAXBUF,"+ %s %s %d %d",tcp_host,ipaddr,port,authcookie);
2716                         NetSendToAllExcept(tcp_host,buffer);
2717                 break;
2718                 case '/':
2719                         WriteOpers("Server %s is IRCServices-based server (assumes-SVSMODE) - Nickname Services: %s",tcp_host,params);
2720                         strlcpy(source->nickserv,params,NICKMAX);
2721                 break;
2722                 // F <TS>
2723                 // end netburst with no mesh creation
2724                 case 'f':
2725                         WriteOpers("Server %s has completed netburst. (%d secs)",tcp_host,TIME-nb_start);
2726                         handle_F(token,params,source,reply,tcp_host);
2727                         nb_start = 0;
2728                         // tell everyone else about the new server name so they just add it in the disconnected
2729                         // state
2730                         snprintf(buffer,MAXBUF,"u %s :%s",tcp_host,GetServerDescription(tcp_host).c_str());
2731                         NetSendToAllExcept(tcp_host,buffer);
2732                 break;
2733                 // X <reserved>
2734                 // Send netburst now
2735                 case 'X':
2736                         WriteOpers("Sending my netburst to %s",tcp_host);
2737                         DoSync(source,tcp_host);
2738                         WriteOpers("Send of netburst to %s completed",tcp_host);
2739                         NetSendMyRoutingTable();
2740                 break;
2741                 // anything else
2742                 default:
2743                         WriteOpers("WARNING! Unknown datagram type '%c'",token);
2744                 break;
2745         }
2746 }
2747
2748
2749 void handle_link_packet(char* udp_msg, char* tcp_host, serverrec *serv)
2750 {
2751         if ((!strncmp(udp_msg,"USER ",5)) || (!strncmp(udp_msg,"NICK ",5)))
2752         {
2753                 // a user on a server port, just close their connection.
2754                 RemoveServer(tcp_host);
2755                 return;
2756         }
2757
2758         char response[10240];
2759         char token = udp_msg[0];
2760         char* old = udp_msg;
2761
2762         if (token == ':') // leading :servername or details - strip them off (services does this, sucky)
2763         {
2764                 char* src = udp_msg+1;
2765                 while (udp_msg[0] != ' ')
2766                         udp_msg++;
2767                 udp_msg[0] = 0;
2768                 udp_msg++;
2769                 char* comd = udp_msg;
2770                 while (udp_msg[0] != ' ')
2771                         udp_msg++;
2772                 udp_msg[0] = 0;
2773                 udp_msg++;
2774                 char data[MAXBUF];
2775                 char source[MAXBUF];
2776                 char command[MAXBUF];
2777                 strlcpy(data,udp_msg,512);
2778                 strlcpy(source,src,MAXBUF);
2779                 strlcpy(command,comd,MAXBUF);
2780                 udp_msg = old;
2781
2782                 // unused numeric:
2783                 // :services-dev.chatspike.net 433 Craig Craig :Nickname is registered to someone else
2784                 if (!strcmp(command,"433"))
2785                 {
2786                         token = '*';
2787                 }
2788                 if (!strcmp(command,"432"))
2789                 {
2790                         token = '*';
2791                 }
2792                 if (!strcmp(command,"PING"))
2793                 {
2794                         token = '*';
2795                 }
2796                 if (!strcmp(command,"NOTICE"))
2797                 {
2798                         snprintf(udp_msg,MAXBUF,"V %s %s",source,data);
2799                         log(DEBUG,"Rewrote NOTICE from services to: '%s'",udp_msg);
2800                         token = udp_msg[0];
2801                 }
2802                 if (!strcmp(command,"QUIT"))
2803                 {
2804                         if ((!udp_msg) || (!strcmp(data,"")) || (strcmp(data,":")))
2805                         {
2806                                 strcpy(data,":No reason");
2807                         }
2808                         if (!strcmp(data,":"))
2809                         {
2810                                 strcpy(data,":No reason");
2811                         }
2812                         snprintf(udp_msg,MAXBUF,"Q %s %s",source,data);
2813                         log(DEBUG,"Rewrote QUIT from services to: '%s'",udp_msg);
2814                         token = udp_msg[0];
2815                 }
2816                 if (!strcmp(command,"SQUIT"))
2817                 {
2818                         snprintf(udp_msg,MAXBUF,"& %s",source);
2819                         log(DEBUG,"Rewrote SQUIT from services to: '%s'",udp_msg);
2820                         token = udp_msg[0];
2821                 }
2822                 if (!strcmp(command,"SVSMODE"))
2823                 {
2824                         snprintf(udp_msg,MAXBUF,"m %s %s",source,data);
2825                         log(DEBUG,"Rewrote SVSMODE from services to: '%s'",udp_msg);
2826                         token = udp_msg[0];
2827                 }
2828                 if (!strcmp(command,"SVS2MODE"))
2829                 {
2830                         snprintf(udp_msg,MAXBUF,"m %s %s",source,data);
2831                         log(DEBUG,"Rewrote SVS2MODE from services to: '%s'",udp_msg);
2832                         token = udp_msg[0];
2833                 }
2834                 // todo: this wont work without u:lines
2835                 // in give_ops etc allow nick on a u:lined serv to do just about anything
2836                 if (!strcmp(command,"MODE"))
2837                 {
2838                         snprintf(udp_msg,MAXBUF,"m %s %s",source,data);
2839                         log(DEBUG,"Rewrote MODE from services to: '%s'",udp_msg);
2840                         token = udp_msg[0];
2841                 }
2842                 if (!strcmp(command,"KICK"))
2843                 {
2844                         snprintf(udp_msg,MAXBUF,"k %s %s",source,data);
2845                         log(DEBUG,"Rewrote KICK from services to: '%s'",udp_msg);
2846                         token = udp_msg[0];
2847                 }
2848                 if (!strcmp(command,"KILL"))
2849                 {
2850                         snprintf(udp_msg,MAXBUF,"K %s %s",source,data);
2851                         log(DEBUG,"Rewrote KILL from services to: '%s'",udp_msg);
2852                         token = udp_msg[0];
2853                 }
2854                 if (!strcmp(command,"SVSJOIN"))
2855                 {
2856                         snprintf(udp_msg,MAXBUF,"J %s",data);
2857                         NetSendToOne(tcp_host,udp_msg);
2858                         char* nick = strtok(data," ");
2859                         char* chan = strtok(NULL," ");
2860                         log(DEBUG,"Rewrote SVSJOIN from services to: '%s'",udp_msg);
2861                         userrec* u = Find(nick);
2862                         if (u)
2863                         {
2864                                 add_channel(u,chan,"",true);
2865                         }
2866                         token = udp_msg[0];
2867                 }
2868
2869         }
2870
2871
2872         char* params = udp_msg + 2;
2873         char finalparam[1024];
2874         strcpy(finalparam," :xxxx");
2875         if (strstr(udp_msg," :")) {
2876                 strlcpy(finalparam,strstr(udp_msg," :"),1024);
2877         }
2878
2879
2880         if (token == '-') {
2881                 char* cookie = strtok(params," ");
2882                 char* servername = strtok(NULL," ");
2883                 char* serverdesc = finalparam+2;
2884
2885                 WriteOpers("AuthCookie CONNECT from %s (%s)",servername,tcp_host);
2886
2887                 for (int u = 0; u < auth_cookies.size(); u++)
2888                 {
2889                         if (auth_cookies[u] == atoi(cookie))
2890                         {
2891                                 WriteOpers("Allowed cookie from %s, is now part of the mesh",servername);
2892
2893
2894                                 for (int j = 0; j < 32; j++)
2895                                 {
2896                                         if (me[j] != NULL)
2897                                         {
2898                                                 for (int k = 0; k < me[j]->connectors.size(); k++)
2899                                                 {
2900                                                         if (!strcasecmp(me[j]->connectors[k].GetServerName().c_str(),tcp_host))
2901                                                         {
2902                                                                 me[j]->connectors[k].SetServerName(servername);
2903                                                                 me[j]->connectors[k].SetDescription(serverdesc);
2904                                                                 me[j]->connectors[k].SetState(STATE_CONNECTED);
2905                                                                 NetSendMyRoutingTable();
2906                                                                 return;
2907                                                         }
2908                                                 }
2909                                         }
2910                                         WriteOpers("\2WARNING!\2 %s sent us an authentication packet but we are not authenticating with this server right now! Possible intrusion attempt!",tcp_host);
2911                                         return;
2912                                 }
2913
2914
2915                                 return;
2916                         }
2917                 }
2918                 // bad cookie, bad bad! go sit in the corner!
2919                 WriteOpers("Bad cookie from %s!",servername);
2920                 return;
2921         }
2922         else
2923         if (token == 'S') {
2924                 // S test.chatspike.net password portn :ChatSpike InspIRCd test server
2925                 char* servername = strtok(params," ");
2926                 char* password = strtok(NULL," ");
2927                 char* myport = strtok(NULL," ");
2928                 char* revision = strtok(NULL," ");
2929                 char* serverdesc = finalparam+2;
2930
2931                 WriteOpers("CONNECT from %s (%s) (their port: %d)",servername,tcp_host,atoi(myport));
2932
2933                 ircd_connector* cn = serv->FindHost(servername);
2934
2935                 if (cn)
2936                 {
2937                         WriteOpers("CONNECT aborted: Server %s already exists from %s",servername,ServerName);
2938                         char buffer[MAXBUF];
2939                         snprintf(buffer,MAXBUF,"E :Server %s already exists!",servername);
2940                         serv->SendPacket(buffer,tcp_host);
2941                         RemoveServer(tcp_host);
2942                         return;
2943                 }
2944
2945                 if (atoi(revision) != GetRevision())
2946                 {
2947                         WriteOpers("CONNECT aborted: Could not link to %s, is an incompatible version %s, our version is %d",servername,revision,GetRevision());
2948                         char buffer[MAXBUF];
2949                         sprintf(buffer,"E :Version number mismatch");
2950                         serv->SendPacket(buffer,tcp_host);
2951                         RemoveServer(tcp_host);
2952                         RemoveServer(servername);
2953                         return;
2954                 }
2955
2956                 for (int j = 0; j < serv->connectors.size(); j++)
2957                 {
2958                         if (!strcasecmp(serv->connectors[j].GetServerName().c_str(),tcp_host))
2959                         {
2960                                 serv->connectors[j].SetServerName(servername);
2961                                 serv->connectors[j].SetDescription(serverdesc);
2962                                 serv->connectors[j].SetServerPort(atoi(myport));
2963                         }
2964                 }
2965
2966
2967                 char Link_ServerName[1024];
2968                 char Link_IPAddr[1024];
2969                 char Link_Port[1024];
2970                 char Link_Pass[1024];
2971                 char Link_SendPass[1024];
2972                 int LinkPort = 0;
2973
2974                 // search for a corresponding <link> block in the config files
2975                 for (int i = 0; i < ConfValueEnum("link",&config_f); i++)
2976                 {
2977                         ConfValue("link","name",i,Link_ServerName,&config_f);
2978                         ConfValue("link","ipaddr",i,Link_IPAddr,&config_f);
2979                         ConfValue("link","port",i,Link_Port,&config_f);
2980                         ConfValue("link","recvpass",i,Link_Pass,&config_f);
2981                         ConfValue("link","sendpass",i,Link_SendPass,&config_f);
2982                         log(DEBUG,"(%d) Comparing against name='%s', ipaddr='%s', port='%s', recvpass='%s'",i,Link_ServerName,Link_IPAddr,Link_Port,Link_Pass);
2983                         LinkPort = atoi(Link_Port);
2984                         if ((!strcasecmp(Link_ServerName,servername)) && (!strcmp(Link_Pass,password)))
2985                         {
2986                                 // we have a matching link line -
2987                                 // send a 'diminutive' server message back...
2988                                 snprintf(response,10240,"s %s %s :%s",ServerName,Link_SendPass,ServerDesc);
2989                                 serv->SendPacket(response,servername);
2990
2991                                 for (int t = 0; t < serv->connectors.size(); t++)
2992                                 {
2993                                         if (!strcasecmp(serv->connectors[t].GetServerName().c_str(),servername))
2994                                         {
2995                                                 serv->connectors[t].SetState(STATE_CONNECTED);
2996                                         }
2997                                 }
2998
2999                                 return;
3000                         }
3001                 }
3002                 char buffer[MAXBUF];
3003                 sprintf(buffer,"E :Access is denied (no matching link block)");
3004                 serv->SendPacket(buffer,tcp_host);
3005                 WriteOpers("CONNECT from %s denied, no matching link block",servername);
3006                 RemoveServer(tcp_host);
3007                 RemoveServer(servername);
3008                 return;
3009         }
3010         else
3011         if (token == 's') {
3012                 // S test.chatspike.net password :ChatSpike InspIRCd test server
3013                 char* servername = strtok(params," ");
3014                 char* password = strtok(NULL," ");
3015                 char* serverdesc = finalparam+2;
3016
3017                 // TODO: we should do a check here to ensure that this server is one we recently initiated a
3018                 // link with, and didnt hear an 's' or 'E' back from yet (these are the only two valid responses
3019                 // to an 'S' command. If we didn't recently send an 'S' to this server, theyre trying to spoof
3020                 // a connect, so put out an oper alert!
3021
3022                 // for now, just accept all, we'll fix that later.
3023                 WriteOpers("%s accepted our link credentials ",servername);
3024
3025                 char Link_ServerName[1024];
3026                 char Link_IPAddr[1024];
3027                 char Link_Port[1024];
3028                 char Link_Pass[1024];
3029                 char Link_SendPass[1024];
3030                 int LinkPort = 0;
3031
3032                 // search for a corresponding <link> block in the config files
3033                 for (int i = 0; i < ConfValueEnum("link",&config_f); i++)
3034                 {
3035                         ConfValue("link","name",i,Link_ServerName,&config_f);
3036                         ConfValue("link","ipaddr",i,Link_IPAddr,&config_f);
3037                         ConfValue("link","port",i,Link_Port,&config_f);
3038                         ConfValue("link","recvpass",i,Link_Pass,&config_f);
3039                         ConfValue("link","sendpass",i,Link_SendPass,&config_f);
3040                         log(DEBUG,"(%d) Comparing against name='%s', ipaddr='%s', port='%s', recvpass='%s'",i,Link_ServerName,Link_IPAddr,Link_Port,Link_Pass);
3041                         LinkPort = atoi(Link_Port);
3042                         if (!strcasecmp(Link_ServerName,servername))
3043                         {
3044                                 // matching link at this end too, we're all done!
3045                                 // at this point we must begin key exchange and insert this
3046                                 // server into our 'active' table.
3047                                 for (int j = 0; j < 32; j++)
3048                                 {
3049                                         if (me[j] != NULL)
3050                                         {
3051                                                 for (int k = 0; k < me[j]->connectors.size(); k++)
3052                                                 {
3053                                                         if (!strcasecmp(me[j]->connectors[k].GetServerName().c_str(),tcp_host))
3054                                                         {
3055                                                                 char buffer[MAXBUF];
3056                                                                 me[j]->connectors[k].SetDescription(serverdesc);
3057                                                                 me[j]->connectors[k].SetState(STATE_CONNECTED);
3058                                                                 sprintf(buffer,"X 0");
3059                                                                 serv->SendPacket(buffer,tcp_host);
3060                                                                 DoSync(me[j],tcp_host);
3061                                                                 NetSendMyRoutingTable();
3062                                                                 return;
3063                                                         }
3064                                                 }
3065                                         }
3066                                         WriteOpers("\2WARNING!\2 %s sent us an authentication packet but we are not authenticating with this server right noe! Possible intrusion attempt!",tcp_host);
3067                                         return;
3068                                 }
3069                         }
3070                         else {
3071                                 log(DEBUG,"Server names '%s' and '%s' don't match",Link_ServerName,servername);
3072                         }
3073                 }
3074                 char buffer[MAXBUF];
3075                 sprintf(buffer,"E :Access is denied (no matching link block)");
3076                 serv->SendPacket(buffer,tcp_host);
3077                 WriteOpers("CONNECT from %s denied, no matching link block",servername);
3078                 RemoveServer(tcp_host);
3079                 RemoveServer(servername);
3080                 return;
3081         }
3082         else
3083         if (token == 'U') {
3084                 // U services.chatspike.net password :ChatSpike Services
3085                 //
3086                 // non-meshed link, used by services. Everything coming from a non-meshed link is auto broadcasted.
3087                 char* servername = strtok(params," ");
3088                 char* password = strtok(NULL," ");
3089                 char* serverdesc = finalparam+2;
3090
3091                 char Link_ServerName[1024];
3092                 char Link_IPAddr[1024];
3093                 char Link_Port[1024];
3094                 char Link_Pass[1024];
3095                 char Link_SendPass[1024];
3096                 int LinkPort = 0;
3097
3098                 log(DEBUG,"U-token linked server detected.");
3099
3100                 // search for a corresponding <link> block in the config files
3101                 for (int i = 0; i < ConfValueEnum("link",&config_f); i++)
3102                 {
3103                         ConfValue("link","name",i,Link_ServerName,&config_f);
3104                         ConfValue("link","ipaddr",i,Link_IPAddr,&config_f);
3105                         ConfValue("link","port",i,Link_Port,&config_f);
3106                         ConfValue("link","recvpass",i,Link_Pass,&config_f);
3107                         ConfValue("link","sendpass",i,Link_SendPass,&config_f);
3108                         log(DEBUG,"(%d) Comparing against name='%s', ipaddr='%s', port='%s', recvpass='%s'",i,Link_ServerName,Link_IPAddr,Link_Port,Link_Pass);
3109                         LinkPort = atoi(Link_Port);
3110                         if ((!strcasecmp(Link_ServerName,servername)) && (!strcmp(Link_Pass,password)))
3111                         {
3112                                 // matching link at this end too, we're all done!
3113                                 // at this point we must begin key exchange and insert this
3114                                 // server into our 'active' table.
3115                                 for (int j = 0; j < 32; j++)
3116                                 {
3117                                         if (me[j] != NULL)
3118                                         {
3119                                                 for (int k = 0; k < me[j]->connectors.size(); k++)
3120                                                 {
3121                                                         if (!strcasecmp(me[j]->connectors[k].GetServerName().c_str(),tcp_host))
3122                                                         {
3123                                                                 char buffer[MAXBUF];
3124                                                                 me[j]->connectors[k].SetDescription(serverdesc);
3125                                                                 me[j]->connectors[k].SetServerName(servername);
3126                                                                 me[j]->connectors[k].SetState(STATE_SERVICES);
3127                                                                 sprintf(buffer,"X 0");
3128                                                                 serv->SendPacket(buffer,servername);
3129                                                                 DoSync(me[j],servername);
3130                                                                 snprintf(buffer,MAXBUF,"H %s",servername);
3131                                                                 NetSendToAllExcept(servername,buffer);
3132                                                                 WriteOpers("Non-Mesh server %s has joined the network",servername);
3133                                                                 log(DEBUG,"******** SENDING MY ROUTING TABLE! *******");
3134                                                                 NetSendMyRoutingTable();
3135                                                                 return;
3136                                                         }
3137                                                 }
3138                                         }
3139                                         WriteOpers("\2WARNING!\2 %s sent us an authentication packet but we are not authenticating with this server right noe! Possible intrusion attempt!",tcp_host);
3140                                         return;
3141                                 }
3142                         }
3143                         else {
3144                                 log(DEBUG,"Server names '%s' and '%s' don't match",Link_ServerName,servername);
3145                         }
3146                 }
3147                 char buffer[MAXBUF];
3148                 sprintf(buffer,"E :Access is denied (no matching link block)");
3149                 serv->SendPacket(buffer,tcp_host);
3150                 WriteOpers("CONNECT from %s denied, no matching link block",servername);
3151                 RemoveServer(tcp_host);
3152                 RemoveServer(servername);
3153                 return;
3154         }
3155         else
3156         if (token == 'E') {
3157                 char* error_message = finalparam+2;
3158                 WriteOpers("ERROR from %s: %s",tcp_host,error_message);
3159                 return;
3160         }
3161         else {
3162
3163                 serverrec* source_server = NULL;
3164
3165                 for (int j = 0; j < 32; j++)
3166                 {
3167                         if (me[j] != NULL)
3168                         {
3169                                 for (int x = 0; x < me[j]->connectors.size(); x++)
3170                                 {
3171                                         log(DEBUG,"Servers are: '%s' '%s'",tcp_host,me[j]->connectors[x].GetServerName().c_str());
3172                                         if (!strcasecmp(me[j]->connectors[x].GetServerName().c_str(),tcp_host))
3173                                         {
3174                                                 if ((me[j]->connectors[x].GetState() == STATE_CONNECTED) || (me[j]->connectors[x].GetState() == STATE_SERVICES))
3175                                                 {
3176                                                         // found a valid ircd_connector.
3177                                                         process_restricted_commands(token,params,me[j],serv,tcp_host,me[j]->connectors[x].GetServerIP(),me[j]->connectors[x].GetServerPort());
3178                                                         return;
3179                                                 }
3180                                         }
3181                                 }
3182                         }
3183                 }
3184
3185                 log(DEBUG,"Unrecognised token or unauthenticated host in datagram from %s: %c",tcp_host,token);
3186         }
3187 }
3188
3189 long duration(const char* str)
3190 {
3191         char n_field[MAXBUF];
3192         long total = 0;
3193         const char* str_end = str + strlen(str);
3194         n_field[0] = 0;
3195
3196         for (char* i = (char*)str; i < str_end; i++)
3197         {
3198                 // if we have digits, build up a string for the value in n_field,
3199                 // up to 10 digits in size.
3200                 if ((*i >= '0') && (*i <= '9'))
3201                 {
3202                         strlcat(n_field,i,10);
3203                 }
3204                 else
3205                 {
3206                         // we dont have a digit, check for numeric tokens
3207                         switch (tolower(*i))
3208                         {
3209                                 case 's':
3210                                         total += atoi(n_field);
3211                                 break;
3212
3213                                 case 'm':
3214                                         total += (atoi(n_field)*duration_m);
3215                                 break;
3216
3217                                 case 'h':
3218                                         total += (atoi(n_field)*duration_h);
3219                                 break;
3220
3221                                 case 'd':
3222                                         total += (atoi(n_field)*duration_d);
3223                                 break;
3224
3225                                 case 'w':
3226                                         total += (atoi(n_field)*duration_w);
3227                                 break;
3228
3229                                 case 'y':
3230                                         total += (atoi(n_field)*duration_y);
3231                                 break;
3232                         }
3233                         n_field[0] = 0;
3234                 }
3235         }
3236         // add trailing seconds
3237         total += atoi(n_field);
3238
3239         return total;
3240 }
3241
3242
3243 void handle_kline(char **parameters, int pcnt, userrec *user)
3244 {
3245         if (pcnt >= 3)
3246         {
3247                 add_kline(duration(parameters[1]),user->nick,parameters[2],parameters[0]);
3248                 if (!duration(parameters[1]))
3249                 {
3250                         WriteOpers("*** %s added permenant K-line for %s.",user->nick,parameters[0]);
3251                 }
3252                 else
3253                 {
3254                         WriteOpers("*** %s added timed K-line for %s, expires in %d seconds.",user->nick,parameters[0],duration(parameters[1]));
3255                 }
3256         }
3257         else
3258         {
3259                 if (del_kline(parameters[0]))
3260                 {
3261                         WriteOpers("*** %s Removed K-line on %s.",user->nick,parameters[0]);
3262                 }
3263                 else
3264                 {
3265                         WriteServ(user->fd,"NOTICE %s :*** K-Line %s not found in list, try /stats k.",user->nick,parameters[0]);
3266                 }
3267         }
3268         apply_lines();
3269 }
3270
3271 void handle_eline(char **parameters, int pcnt, userrec *user)
3272 {
3273         if (pcnt >= 3)
3274         {
3275                 add_eline(duration(parameters[1]),user->nick,parameters[2],parameters[0]);
3276                 if (!duration(parameters[1]))
3277                 {
3278                         WriteOpers("*** %s added permenant E-line for %s.",user->nick,parameters[0]);
3279                 }
3280                 else
3281                 {
3282                         WriteOpers("*** %s added timed E-line for %s, expires in %d seconds.",user->nick,parameters[0],duration(parameters[1]));
3283                 }
3284         }
3285         else
3286         {
3287                 if (del_eline(parameters[0]))
3288                 {
3289                         WriteOpers("*** %s Removed E-line on %s.",user->nick,parameters[0]);
3290                 }
3291                 else
3292                 {
3293                         WriteServ(user->fd,"NOTICE %s :*** E-Line %s not found in list, try /stats e.",user->nick,parameters[0]);
3294                 }
3295         }
3296         // no need to apply the lines for an eline
3297 }
3298
3299 void handle_gline(char **parameters, int pcnt, userrec *user)
3300 {
3301         char netdata[MAXBUF];
3302         if (pcnt >= 3)
3303         {
3304                 add_gline(duration(parameters[1]),user->nick,parameters[2],parameters[0]);
3305                 // # <mask> <who-set-it> <time-set> <duration> :<reason>
3306                 snprintf(netdata,MAXBUF,"# %s %s %ld %ld :%s",parameters[0],user->nick,TIME,duration(parameters[1]),parameters[2]);
3307                 NetSendToAll(netdata);
3308                 if (!duration(parameters[1]))
3309                 {
3310                         WriteOpers("*** %s added permenant G-line for %s.",user->nick,parameters[0]);
3311                 }
3312                 else
3313                 {
3314                         WriteOpers("*** %s added timed G-line for %s, expires in %d seconds.",user->nick,parameters[0],duration(parameters[1]));
3315                 }
3316         }
3317         else
3318         {
3319                 if (del_gline(parameters[0]))
3320                 {
3321                         // . <mask> <who-removed-it>
3322                         snprintf(netdata,MAXBUF,". %s %s",parameters[0],user->nick);
3323                         WriteOpers("*** %s Removed G-line on %s.",user->nick,parameters[0]);
3324                 }
3325                 else
3326                 {
3327                         WriteServ(user->fd,"NOTICE %s :*** G-Line %s not found in list, try /stats g.",user->nick,parameters[0]);
3328                 }
3329         }
3330         apply_lines();
3331 }
3332
3333 void handle_zline(char **parameters, int pcnt, userrec *user)
3334 {
3335         if (pcnt >= 3)
3336         {
3337                 add_zline(duration(parameters[1]),user->nick,parameters[2],parameters[0]);
3338                 if (!duration(parameters[1]))
3339                 {
3340                         WriteOpers("*** %s added permenant Z-line for %s.",user->nick,parameters[0]);
3341                 }
3342                 else
3343                 {
3344                         WriteOpers("*** %s added timed Z-line for %s, expires in %d seconds.",user->nick,parameters[0],duration(parameters[1]));
3345                 }
3346         }
3347         else
3348         {
3349                 if (del_zline(parameters[0]))
3350                 {
3351                         WriteOpers("*** %s Removed Z-line on %s.",user->nick,parameters[0]);
3352                 }
3353                 else
3354                 {
3355                         WriteServ(user->fd,"NOTICE %s :*** Z-Line %s not found in list, try /stats Z.",user->nick,parameters[0]);
3356                 }
3357         }
3358         apply_lines();
3359 }
3360
3361 void handle_qline(char **parameters, int pcnt, userrec *user)
3362 {
3363         if (pcnt >= 3)
3364         {
3365                 add_qline(duration(parameters[1]),user->nick,parameters[2],parameters[0]);
3366                 if (!duration(parameters[1]))
3367                 {
3368                         WriteOpers("*** %s added permenant Q-line for %s.",user->nick,parameters[0]);
3369                 }
3370                 else
3371                 {
3372                         WriteOpers("*** %s added timed Q-line for %s, expires in %d seconds.",user->nick,parameters[0],duration(parameters[1]));
3373                 }
3374         }
3375         else
3376         {
3377                 if (del_qline(parameters[0]))
3378                 {
3379                         WriteOpers("*** %s Removed Q-line on %s.",user->nick,parameters[0]);
3380                 }
3381                 else
3382                 {
3383                         WriteServ(user->fd,"NOTICE %s :*** Q-Line %s not found in list, try /stats k.",user->nick,parameters[0]);
3384                 }
3385         }
3386         apply_lines();
3387 }
3388
3389