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