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<std::string> module_names;
  97
  98 extern char MyExecutable[1024];
  99 extern int boundPortCount;
 100 extern int portCount;
 101 extern int UDPportCount;
 102 extern int ports[MAXSOCKS];
 103 extern int defaultRoute;
 104
 105 extern std::vector<long> auth_cookies;
 106 extern std::stringstream config_f;
 107
 108 extern serverrec* me[32];
 109
 110 extern FILE *log_file;
 111
 112 extern ClassVector Classes;
 113
 114 const long duration_m = 60;
 115 const long duration_h = duration_m * 60;
 116 const long duration_d = duration_h * 24;
 117 const long duration_w = duration_d * 7;
 118 const long duration_y = duration_w * 52;
 119
 120 namespace nspace
 121 {
 122 #ifdef GCC34
 123         template<> struct hash<in_addr>
 124 #else
 125         template<> struct nspace::hash<in_addr>
 126 #endif
 127         {
 128                 size_t operator()(const struct in_addr &a) const
 129                 {
 130                         size_t q;
 131                         memcpy(&q,&a,sizeof(size_t));
 132                         return q;
 133                 }
 134         };
 135 #ifdef GCC34
 136         template<> struct hash<string>
 137 #else
 138         template<> struct nspace::hash<string>
 139 #endif
 140         {
 141                 size_t operator()(const string &s) const
 142                 {
 143                         char a[MAXBUF];
 144                         static struct hash<const char *> strhash;
 145                         strlcpy(a,s.c_str(),MAXBUF);
 146                         strlower(a);
 147                         return strhash(a);
 148                 }
 149         };
 150 }
 151
 152
 153 struct StrHashComp
 154 {
 155
 156         bool operator()(const string& s1, const string& s2) const
 157         {
 158                 char a[MAXBUF],b[MAXBUF];
 159                 strlcpy(a,s1.c_str(),MAXBUF);
 160                 strlcpy(b,s2.c_str(),MAXBUF);
 161                 strlower(a);
 162                 strlower(b);
 163                 return (strcasecmp(a,b) == 0);
 164         }
 165
 166 };
 167
 168 struct InAddr_HashComp
 169 {
 170
 171         bool operator()(const in_addr &s1, const in_addr &s2) const
 172         {
 173                 size_t q;
 174                 size_t p;
 175
 176                 memcpy(&q,&s1,sizeof(size_t));
 177                 memcpy(&p,&s2,sizeof(size_t));
 178
 179                 return (q == p);
 180         }
 181
 182 };
 183
 184
 185 typedef nspace::hash_map<std::string, userrec*, nspace::hash<string>, StrHashComp> user_hash;
 186 typedef nspace::hash_map<std::string, chanrec*, nspace::hash<string>, StrHashComp> chan_hash;
 187 typedef nspace::hash_map<in_addr,string*, nspace::hash<in_addr>, InAddr_HashComp> address_cache;
 188 typedef std::deque<command_t> command_table;
 189
 190
 191 extern user_hash clientlist;
 192 extern chan_hash chanlist;
 193 extern user_hash whowas;
 194 extern command_table cmdlist;
 195 extern file_cache MOTD;
 196 extern file_cache RULES;
 197 extern address_cache IP;
 198
 199
 200 void handle_join(char **parameters, int pcnt, userrec *user)
 201 {
 202         chanrec* Ptr;
 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         if (pcnt > 1)
 216         {
 217                 if (loop_call(handle_part,parameters,pcnt,user,0,pcnt-2,0))
 218                         return;
 219                 del_channel(user,parameters[0],parameters[1],false);
 220         }
 221         else
 222         {
 223                 if (loop_call(handle_part,parameters,pcnt,user,0,pcnt-1,0))
 224                         return;
 225                 del_channel(user,parameters[0],NULL,false);
 226         }
 227 }
 228
 229 void handle_kick(char **parameters, int pcnt, userrec *user)
 230 {
 231         chanrec* Ptr = FindChan(parameters[0]);
 232         userrec* u   = Find(parameters[1]);
 233
 234         if ((!u) || (!Ptr))
 235         {
 236                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
 237                 return;
 238         }
 239
 240         if (!has_channel(user,Ptr))
 241         {
 242                 WriteServ(user->fd,"442 %s %s :You're not on that channel!",user->nick, parameters[0]);
 243                 return;
 244         }
 245
 246         char reason[MAXBUF];
 247
 248         if (pcnt > 2)
 249         {
 250                 strlcpy(reason,parameters[2],MAXBUF);
 251                 if (strlen(reason)>MAXKICK)
 252                 {
 253                         reason[MAXKICK-1] = '\0';
 254                 }
 255
 256                 kick_channel(user,u,Ptr,reason);
 257         }
 258         else
 259         {
 260                 strlcpy(reason,user->nick,MAXBUF);
 261                 kick_channel(user,u,Ptr,reason);
 262         }
 263
 264         // this must be propogated so that channel membership is kept in step network-wide
 265         char buffer[MAXBUF];
 266         snprintf(buffer,MAXBUF,"k %s %s %s :%s",user->nick,u->nick,Ptr->name,reason);
 267         NetSendToAll(buffer);
 268 }
 269
 270 void handle_loadmodule(char **parameters, int pcnt, userrec *user)
 271 {
 272         if (LoadModule(parameters[0]))
 273         {
 274                 WriteOpers("*** NEW MODULE: %s",parameters[0]);
 275                 WriteServ(user->fd,"975 %s %s :Module successfully loaded.",user->nick, parameters[0]);
 276         }
 277         else
 278         {
 279                 WriteServ(user->fd,"974 %s %s :Failed to load module: %s",user->nick, parameters[0],ModuleError());
 280         }
 281 }
 282
 283 void handle_unloadmodule(char **parameters, int pcnt, userrec *user)
 284 {
 285         if (UnloadModule(parameters[0]))
 286         {
 287                 WriteOpers("*** MODULE UNLOADED: %s",parameters[0]);
 288                 WriteServ(user->fd,"973 %s %s :Module successfully unloaded.",user->nick, parameters[0]);
 289         }
 290         else
 291         {
 292                 WriteServ(user->fd,"972 %s %s :Failed to unload module: %s",user->nick, parameters[0],ModuleError());
 293         }
 294 }
 295
 296 void handle_die(char **parameters, int pcnt, userrec *user)
 297 {
 298         log(DEBUG,"die: %s",user->nick);
 299         if (!strcmp(parameters[0],diepass))
 300         {
 301                 WriteOpers("*** DIE command from %s!%s@%s, terminating...",user->nick,user->ident,user->host);
 302                 sleep(DieDelay);
 303                 Exit(ERROR);
 304         }
 305         else
 306         {
 307                 WriteOpers("*** Failed DIE Command from %s!%s@%s.",user->nick,user->ident,user->host);
 308         }
 309 }
 310
 311 void handle_restart(char **parameters, int pcnt, userrec *user)
 312 {
 313         char *argv[32];
 314         log(DEFAULT,"Restart: %s",user->nick);
 315         if (!strcmp(parameters[0],restartpass))
 316         {
 317                 WriteOpers("*** RESTART command from %s!%s@%s, restarting server.",user->nick,user->ident,user->host);
 318
 319                 argv[0] = MyExecutable;
 320                 argv[1] = "-wait";
 321                 if (nofork)
 322                 {
 323                         argv[2] = "-nofork";
 324                 }
 325                 else
 326                 {
 327                         argv[2] = NULL;
 328                 }
 329                 argv[3] = NULL;
 330
 331                 // close ALL file descriptors
 332                 send_error("Server restarting.");
 333                 sleep(1);
 334                 for (int i = 0; i < 65536; i++)
 335                 {
 336                         int on = 1;
 337                         struct linger linger = { 0 };
 338                         setsockopt(i, SOL_SOCKET, SO_REUSEADDR, (const char*)&on, sizeof(on));
 339                         linger.l_onoff = 1;
 340                         linger.l_linger = 1;
 341                         setsockopt(i, SOL_SOCKET, SO_LINGER, (const char*)&linger,sizeof(linger));
 342                         Blocking(i);
 343                         close(i);
 344                 }
 345                 sleep(2);
 346
 347                 execv(MyExecutable,argv);
 348
 349                 exit(0);
 350         }
 351         else
 352         {
 353                 WriteOpers("*** Failed RESTART Command from %s!%s@%s.",user->nick,user->ident,user->host);
 354         }
 355 }
 356
 357 void handle_kill(char **parameters, int pcnt, userrec *user)
 358 {
 359         userrec *u = Find(parameters[0]);
 360         char killreason[MAXBUF];
 361
 362         log(DEBUG,"kill: %s %s",parameters[0],parameters[1]);
 363         if (u)
 364         {
 365                 log(DEBUG,"into kill mechanism");
 366                 int MOD_RESULT = 0;
 367                 FOREACH_RESULT(OnKill(user,u,parameters[1]));
 368                 if (MOD_RESULT) {
 369                         log(DEBUG,"A module prevented the kill with result %d",MOD_RESULT);
 370                         return;
 371                 }
 372
 373                 if (strcmp(ServerName,u->server))
 374                 {
 375                         // remote kill
 376                         WriteOpers("*** Remote kill by %s: %s!%s@%s (%s)",user->nick,u->nick,u->ident,u->host,parameters[1]);
 377                         snprintf(killreason,MAXBUF,"[%s] Killed (%s (%s))",ServerName,user->nick,parameters[1]);
 378                         WriteCommonExcept(u,"QUIT :%s",killreason);
 379                         // K token must go to ALL servers!!!
 380                         char buffer[MAXBUF];
 381                         snprintf(buffer,MAXBUF,"K %s %s :%s",user->nick,u->nick,killreason);
 382                         NetSendToAll(buffer);
 383
 384                         user_hash::iterator iter = clientlist.find(u->nick);
 385                         if (iter != clientlist.end())
 386                         {
 387                                 log(DEBUG,"deleting user hash value %d",iter->second);
 388                                 clientlist.erase(iter);
 389                         }
 390                         if (u->registered == 7)
 391                         {
 392                                 purge_empty_chans(u);
 393                         }
 394                         delete u;
 395                 }
 396                 else
 397                 {
 398                         // local kill
 399                         log(DEFAULT,"LOCAL KILL: %s :%s!%s!%s (%s)", u->nick, ServerName,user->dhost,user->nick,parameters[1]);
 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         strlcpy(user->password,parameters[0],MAXBUF);
 431         if (!strcasecmp(parameters[0],Passwd(user)))
 432         {
 433                 user->haspassed = true;
 434         }
 435 }
 436
 437 void handle_invite(char **parameters, int pcnt, userrec *user)
 438 {
 439         userrec* u = Find(parameters[0]);
 440         chanrec* c = FindChan(parameters[1]);
 441
 442         if ((!c) || (!u))
 443         {
 444                 if (!c)
 445                 {
 446                         WriteServ(user->fd,"401 %s %s :No such nick/channel",user->nick, parameters[1]);
 447                 }
 448                 else
 449                 {
 450                         if (c->inviteonly)
 451                         {
 452                                 WriteServ(user->fd,"401 %s %s :No such nick/channel",user->nick, parameters[0]);
 453                         }
 454                 }
 455
 456                 return;
 457         }
 458
 459         if (c->inviteonly)
 460         {
 461                 if (cstatus(user,c) < STATUS_HOP)
 462                 {
 463                         WriteServ(user->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel",user->nick, c->name);
 464                         return;
 465                 }
 466         }
 467         if (has_channel(u,c))
 468         {
 469                 WriteServ(user->fd,"443 %s %s %s :Is already on channel %s",user->nick,u->nick,c->name,c->name);
 470                 return;
 471         }
 472         if (!has_channel(user,c))
 473         {
 474                 WriteServ(user->fd,"442 %s %s :You're not on that channel!",user->nick, c->name);
 475                 return;
 476         }
 477
 478         int MOD_RESULT = 0;
 479         FOREACH_RESULT(OnUserPreInvite(user,u,c));
 480         if (MOD_RESULT == 1) {
 481                 return;
 482         }
 483
 484         u->InviteTo(c->name);
 485         WriteFrom(u->fd,user,"INVITE %s :%s",u->nick,c->name);
 486         WriteServ(user->fd,"341 %s %s %s",user->nick,u->nick,c->name);
 487
 488         // i token must go to ALL servers!!!
 489         char buffer[MAXBUF];
 490         snprintf(buffer,MAXBUF,"i %s %s %s",u->nick,user->nick,c->name);
 491         NetSendToAll(buffer);
 492 }
 493
 494 void handle_topic(char **parameters, int pcnt, userrec *user)
 495 {
 496         chanrec* Ptr;
 497
 498         if (pcnt == 1)
 499         {
 500                 if (strlen(parameters[0]) <= CHANMAX)
 501                 {
 502                         Ptr = FindChan(parameters[0]);
 503                         if (Ptr)
 504                         {
 505                                 if (((Ptr) && (!has_channel(user,Ptr))) && (Ptr->secret))
 506                                 {
 507                                         WriteServ(user->fd,"442 %s %s :You're not on that channel!",user->nick, Ptr->name);
 508                                         return;
 509                                 }
 510                                 if (Ptr->topicset)
 511                                 {
 512                                         WriteServ(user->fd,"332 %s %s :%s", user->nick, Ptr->name, Ptr->topic);
 513                                         WriteServ(user->fd,"333 %s %s %s %d", user->nick, Ptr->name, Ptr->setby, Ptr->topicset);
 514                                 }
 515                                 else
 516                                 {
 517                                         WriteServ(user->fd,"331 %s %s :No topic is set.", user->nick, Ptr->name);
 518                                 }
 519                         }
 520                         else
 521                         {
 522                                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
 523                         }
 524                 }
 525                 return;
 526         }
 527         else if (pcnt>1)
 528         {
 529                 if (strlen(parameters[0]) <= CHANMAX)
 530                 {
 531                         Ptr = FindChan(parameters[0]);
 532                         if (Ptr)
 533                         {
 534                                 if ((Ptr) && (!has_channel(user,Ptr)))
 535                                 {
 536                                         WriteServ(user->fd,"442 %s %s :You're not on that channel!",user->nick, Ptr->name);
 537                                         return;
 538                                 }
 539                                 if ((Ptr->topiclock) && (cstatus(user,Ptr)<STATUS_HOP))
 540                                 {
 541                                         WriteServ(user->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel", user->nick, Ptr->name);
 542                                         return;
 543                                 }
 544
 545                                 char topic[MAXBUF];
 546                                 strlcpy(topic,parameters[1],MAXBUF);
 547                                 if (strlen(topic)>MAXTOPIC)
 548                                 {
 549                                         topic[MAXTOPIC-1] = '\0';
 550                                 }
 551
 552                                 if (!strcasecmp(user->server,ServerName))
 553                                 {
 554                                         int MOD_RESULT = 0;
 555                                         FOREACH_RESULT(OnLocalTopicChange(user,Ptr,topic));
 556                                         if (MOD_RESULT)
 557                                                 return;
 558                                 }
 559
 560                                 strlcpy(Ptr->topic,topic,MAXBUF);
 561                                 strlcpy(Ptr->setby,user->nick,NICKMAX);
 562                                 Ptr->topicset = TIME;
 563                                 WriteChannel(Ptr,user,"TOPIC %s :%s",Ptr->name, Ptr->topic);
 564
 565                                 // t token must go to ALL servers!!!
 566                                 char buffer[MAXBUF];
 567                                 snprintf(buffer,MAXBUF,"t %s %s :%s",user->nick,Ptr->name,topic);
 568                                 NetSendToAll(buffer);
 569                         }
 570                         else
 571                         {
 572                                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
 573                         }
 574                 }
 575         }
 576 }
 577
 578 void handle_names(char **parameters, int pcnt, userrec *user)
 579 {
 580         chanrec* c;
 581
 582         if (!pcnt)
 583         {
 584                 WriteServ(user->fd,"366 %s * :End of /NAMES list.",user->nick);
 585                 return;
 586         }
 587
 588         if (loop_call(handle_names,parameters,pcnt,user,0,pcnt-1,0))
 589                 return;
 590         c = FindChan(parameters[0]);
 591         if (c)
 592         {
 593                 if (((c) && (!has_channel(user,c))) && (c->secret))
 594                 {
 595                       WriteServ(user->fd,"442 %s %s :You're not on that channel!",user->nick, c->name);
 596                       return;
 597                 }
 598                 userlist(user,c);
 599                 WriteServ(user->fd,"366 %s %s :End of /NAMES list.", user->nick, c->name);
 600         }
 601         else
 602         {
 603                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
 604         }
 605 }
 606
 607 void handle_privmsg(char **parameters, int pcnt, userrec *user)
 608 {
 609         userrec *dest;
 610         chanrec *chan;
 611
 612         user->idle_lastmsg = TIME;
 613
 614         if (loop_call(handle_privmsg,parameters,pcnt,user,0,pcnt-2,0))
 615                 return;
 616         if (parameters[0][0] == '#')
 617         {
 618                 chan = FindChan(parameters[0]);
 619                 if (chan)
 620                 {
 621                         if ((chan->noexternal) && (!has_channel(user,chan)))
 622                         {
 623                                 WriteServ(user->fd,"404 %s %s :Cannot send to channel (no external messages)", user->nick, chan->name);
 624                                 return;
 625                         }
 626                         if ((chan->moderated) && (cstatus(user,chan)<STATUS_VOICE))
 627                         {
 628                                 WriteServ(user->fd,"404 %s %s :Cannot send to channel (+m)", user->nick, chan->name);
 629                                 return;
 630                         }
 631
 632                         int MOD_RESULT = 0;
 633
 634                         std::string temp = parameters[1];
 635                         FOREACH_RESULT(OnUserPreMessage(user,chan,TYPE_CHANNEL,temp));
 636                         if (MOD_RESULT) {
 637                                 return;
 638                         }
 639                         parameters[1] = (char*)temp.c_str();
 640
 641                         ChanExceptSender(chan, user, "PRIVMSG %s :%s", chan->name, parameters[1]);
 642
 643                         // if any users of this channel are on remote servers, broadcast the packet
 644                         char buffer[MAXBUF];
 645                         snprintf(buffer,MAXBUF,"P %s %s :%s",user->nick,chan->name,parameters[1]);
 646                         NetSendToCommon(user,buffer);
 647                 }
 648                 else
 649                 {
 650                         /* no such nick/channel */
 651                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
 652                 }
 653                 return;
 654         }
 655
 656         dest = Find(parameters[0]);
 657         if (dest)
 658         {
 659                 if (strcmp(dest->awaymsg,""))
 660                 {
 661                         /* auto respond with aweh msg */
 662                         WriteServ(user->fd,"301 %s %s :%s",user->nick,dest->nick,dest->awaymsg);
 663                 }
 664
 665                 int MOD_RESULT = 0;
 666
 667                 std::string temp = parameters[1];
 668                 FOREACH_RESULT(OnUserPreMessage(user,dest,TYPE_USER,temp));
 669                 if (MOD_RESULT) {
 670                         return;
 671                 }
 672                 parameters[1] = (char*)temp.c_str();
 673
 674
 675
 676                 if (!strcmp(dest->server,user->server))
 677                 {
 678                         // direct write, same server
 679                         WriteTo(user, dest, "PRIVMSG %s :%s", dest->nick, parameters[1]);
 680                 }
 681                 else
 682                 {
 683                         char buffer[MAXBUF];
 684                         snprintf(buffer,MAXBUF,"P %s %s :%s",user->nick,dest->nick,parameters[1]);
 685                         NetSendToOne(dest->server,buffer);
 686                 }
 687         }
 688         else
 689         {
 690                 /* no such nick/channel */
 691                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
 692         }
 693 }
 694
 695 void handle_notice(char **parameters, int pcnt, userrec *user)
 696 {
 697         userrec *dest;
 698         chanrec *chan;
 699
 700         user->idle_lastmsg = TIME;
 701
 702         if (loop_call(handle_notice,parameters,pcnt,user,0,pcnt-2,0))
 703                 return;
 704         if (parameters[0][0] == '#')
 705         {
 706                 chan = FindChan(parameters[0]);
 707                 if (chan)
 708                 {
 709                         if ((chan->noexternal) && (!has_channel(user,chan)))
 710                         {
 711                                 WriteServ(user->fd,"404 %s %s :Cannot send to channel (no external messages)", user->nick, chan->name);
 712                                 return;
 713                         }
 714                         if ((chan->moderated) && (cstatus(user,chan)<STATUS_VOICE))
 715                         {
 716                                 WriteServ(user->fd,"404 %s %s :Cannot send to channel (+m)", user->nick, chan->name);
 717                                 return;
 718                         }
 719
 720                         int MOD_RESULT = 0;
 721
 722                         std::string temp = parameters[1];
 723                         FOREACH_RESULT(OnUserPreNotice(user,chan,TYPE_CHANNEL,temp));
 724                         if (MOD_RESULT) {
 725                                 return;
 726                         }
 727                         parameters[1] = (char*)temp.c_str();
 728
 729                         ChanExceptSender(chan, user, "NOTICE %s :%s", chan->name, parameters[1]);
 730
 731                         // if any users of this channel are on remote servers, broadcast the packet
 732                         char buffer[MAXBUF];
 733                         snprintf(buffer,MAXBUF,"V %s %s :%s",user->nick,chan->name,parameters[1]);
 734                         NetSendToCommon(user,buffer);
 735                 }
 736                 else
 737                 {
 738                         /* no such nick/channel */
 739                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
 740                 }
 741                 return;
 742         }
 743
 744         dest = Find(parameters[0]);
 745         if (dest)
 746         {
 747                 int MOD_RESULT = 0;
 748
 749                 std::string temp = parameters[1];
 750                 FOREACH_RESULT(OnUserPreNotice(user,dest,TYPE_USER,temp));
 751                 if (MOD_RESULT) {
 752                         return;
 753                 }
 754                 parameters[1] = (char*)temp.c_str();
 755
 756                 if (!strcmp(dest->server,user->server))
 757                 {
 758                         // direct write, same server
 759                         WriteTo(user, dest, "NOTICE %s :%s", dest->nick, parameters[1]);
 760                 }
 761                 else
 762                 {
 763                         char buffer[MAXBUF];
 764                         snprintf(buffer,MAXBUF,"V %s %s :%s",user->nick,dest->nick,parameters[1]);
 765                         NetSendToOne(dest->server,buffer);
 766                 }
 767         }
 768         else
 769         {
 770                 /* no such nick/channel */
 771                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
 772         }
 773 }
 774
 775 void handle_server(char **parameters, int pcnt, userrec *user)
 776 {
 777         WriteServ(user->fd,"666 %s :You cannot identify as a server, you are a USER. IRC Operators informed.",user->nick);
 778         WriteOpers("*** WARNING: %s attempted to issue a SERVER command and is registered as a user!",user->nick);
 779 }
 780
 781 void handle_info(char **parameters, int pcnt, userrec *user)
 782 {
 783         WriteServ(user->fd,"371 %s :. o O (The Inspire Internet Relay Chat Server) O o .",user->nick);
 784         WriteServ(user->fd,"371 %s : ",user->nick);
 785         WriteServ(user->fd,"371 %s :Core developers: Craig Edwards (Brain)",user->nick);
 786         WriteServ(user->fd,"371 %s :                 Craig McLure",user->nick);
 787         WriteServ(user->fd,"371 %s : ",user->nick);
 788         WriteServ(user->fd,"371 %s :Contributors:    typobox43",user->nick);
 789         WriteServ(user->fd,"371 %s :                 w00t",user->nick);
 790         WriteServ(user->fd,"371 %s :                 Om",user->nick);
 791         WriteServ(user->fd,"371 %s :                 Jazza",user->nick);
 792         WriteServ(user->fd,"371 %s : ",user->nick);
 793         WriteServ(user->fd,"371 %s :Testers:         CC",user->nick);
 794         WriteServ(user->fd,"371 %s :                 Piggles",user->nick);
 795         WriteServ(user->fd,"371 %s :                 Foamy",user->nick);
 796         WriteServ(user->fd,"371 %s :                 Hart",user->nick);
 797         WriteServ(user->fd,"371 %s :                 RageD",user->nick);
 798         WriteServ(user->fd,"371 %s :                 [ed]",user->nick);
 799         WriteServ(user->fd,"371 %s :                 Azhrarn",user->nick);
 800         WriteServ(user->fd,"371 %s :                 nenolod",user->nick);
 801         WriteServ(user->fd,"371 %s :                 luigiman",user->nick);
 802         WriteServ(user->fd,"371 %s :                 Chu",user->nick);
 803         WriteServ(user->fd,"371 %s :                 aquanight",user->nick);
 804         WriteServ(user->fd,"371 %s :                 xptek",user->nick);
 805         WriteServ(user->fd,"371 %s :                 Grantlinks",user->nick);
 806         WriteServ(user->fd,"371 %s :                 Rob",user->nick);
 807         WriteServ(user->fd,"371 %s :                 angelic",user->nick);
 808         WriteServ(user->fd,"371 %s :                 Jason",user->nick);
 809         WriteServ(user->fd,"371 %s : ",user->nick);
 810         WriteServ(user->fd,"371 %s :Thanks to irc-junkie and searchirc",user->nick);
 811         WriteServ(user->fd,"371 %s :for the nice comments and the help",user->nick);
 812         WriteServ(user->fd,"371 %s :you gave us in attracting users to",user->nick);
 813         WriteServ(user->fd,"371 %s :this software.",user->nick);
 814         WriteServ(user->fd,"371 %s : ",user->nick);
 815         WriteServ(user->fd,"371 %s :Best experienced with: An IRC client.",user->nick);
 816         FOREACH_MOD OnInfo(user);
 817         WriteServ(user->fd,"374 %s :End of /INFO list",user->nick);
 818 }
 819
 820 void handle_time(char **parameters, int pcnt, userrec *user)
 821 {
 822         time_t rawtime;
 823         struct tm * timeinfo;
 824
 825         time ( &rawtime );
 826         timeinfo = localtime ( &rawtime );
 827         WriteServ(user->fd,"391 %s %s :%s",user->nick,ServerName, asctime (timeinfo) );
 828
 829 }
 830
 831 void handle_whois(char **parameters, int pcnt, userrec *user)
 832 {
 833         userrec *dest;
 834
 835         if (loop_call(handle_whois,parameters,pcnt,user,0,pcnt-1,0))
 836                 return;
 837         dest = Find(parameters[0]);
 838         if (dest)
 839         {
 840                 // bug found by phidjit - were able to whois an incomplete connection if it had sent a NICK or USER
 841                 if (dest->registered == 7)
 842                 {
 843                         WriteServ(user->fd,"311 %s %s %s %s * :%s",user->nick, dest->nick, dest->ident, dest->dhost, dest->fullname);
 844                         if ((user == dest) || (strchr(user->modes,'o')))
 845                         {
 846                                 WriteServ(user->fd,"378 %s %s :is connecting from *@%s",user->nick, dest->nick, dest->host);
 847                         }
 848                         if (strcmp(chlist(dest),""))
 849                         {
 850                                 WriteServ(user->fd,"319 %s %s :%s",user->nick, dest->nick, chlist(dest));
 851                         }
 852                         WriteServ(user->fd,"312 %s %s %s :%s",user->nick, dest->nick, dest->server, GetServerDescription(dest->server).c_str());
 853                         if (strcmp(dest->awaymsg,""))
 854                         {
 855                                 WriteServ(user->fd,"301 %s %s :%s",user->nick, dest->nick, dest->awaymsg);
 856                         }
 857                         if ((strchr(dest->modes,'o')) && (strcmp(dest->oper,"")))
 858                         {
 859                                 WriteServ(user->fd,"313 %s %s :is %s %s on %s",user->nick, dest->nick,
 860                                 (strchr("aeiou",dest->oper[0]) ? "an" : "a"),dest->oper, Network);
 861                         }
 862                         FOREACH_MOD OnWhois(user,dest);
 863                         if (!strcasecmp(user->server,dest->server))
 864                         {
 865                                 // idle time and signon line can only be sent if youre on the same server (according to RFC)
 866                                 WriteServ(user->fd,"317 %s %s %d %d :seconds idle, signon time",user->nick, dest->nick, abs((dest->idle_lastmsg)-TIME), dest->signon);
 867                         }
 868
 869                         WriteServ(user->fd,"318 %s %s :End of /WHOIS list.",user->nick, dest->nick);
 870                 }
 871                 else
 872                 {
 873                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
 874                 }
 875         }
 876         else
 877         {
 878                 /* no such nick/channel */
 879                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
 880         }
 881 }
 882
 883 void handle_quit(char **parameters, int pcnt, userrec *user)
 884 {
 885         user_hash::iterator iter = clientlist.find(user->nick);
 886         char* reason;
 887
 888         if (user->registered == 7)
 889         {
 890                 /* theres more to do here, but for now just close the socket */
 891                 if (pcnt == 1)
 892                 {
 893                         if (parameters[0][0] == ':')
 894                         {
 895                                 *parameters[0]++;
 896                         }
 897                         reason = parameters[0];
 898
 899                         if (strlen(reason)>MAXQUIT)
 900                         {
 901                                 reason[MAXQUIT-1] = '\0';
 902                         }
 903
 904                         Write(user->fd,"ERROR :Closing link (%s@%s) [%s%s]",user->ident,user->host,PrefixQuit,parameters[0]);
 905                         WriteOpers("*** Client exiting: %s!%s@%s [%s%s]",user->nick,user->ident,user->host,PrefixQuit,parameters[0]);
 906                         WriteCommonExcept(user,"QUIT :%s%s",PrefixQuit,parameters[0]);
 907
 908                         char buffer[MAXBUF];
 909                         snprintf(buffer,MAXBUF,"Q %s :%s%s",user->nick,PrefixQuit,parameters[0]);
 910                         NetSendToAll(buffer);
 911                 }
 912                 else
 913                 {
 914                         Write(user->fd,"ERROR :Closing link (%s@%s) [QUIT]",user->ident,user->host);
 915                         WriteOpers("*** Client exiting: %s!%s@%s [Client exited]",user->nick,user->ident,user->host);
 916                         WriteCommonExcept(user,"QUIT :Client exited");
 917
 918                         char buffer[MAXBUF];
 919                         snprintf(buffer,MAXBUF,"Q %s :Client exited",user->nick);
 920                         NetSendToAll(buffer);
 921                 }
 922                 FOREACH_MOD OnUserQuit(user);
 923                 AddWhoWas(user);
 924         }
 925
 926         FOREACH_MOD OnUserDisconnect(user);
 927
 928         /* push the socket on a stack of sockets due to be closed at the next opportunity */
 929         if (user->fd > -1)
 930         {
 931                 shutdown(user->fd,2);
 932                 close(user->fd);
 933         }
 934
 935         if (iter != clientlist.end())
 936         {
 937                 clientlist.erase(iter);
 938         }
 939
 940         if (user->registered == 7) {
 941                 purge_empty_chans(user);
 942         }
 943 }
 944
 945 void handle_who(char **parameters, int pcnt, userrec *user)
 946 {
 947         chanrec* Ptr = NULL;
 948         char tmp[10];
 949
 950         /* theres more to do here, but for now just close the socket */
 951         if (pcnt == 1)
 952         {
 953                 if ((!strcmp(parameters[0],"0")) || (!strcmp(parameters[0],"*")))
 954                 {
 955                         if (user->chans[0].channel)
 956                         {
 957                                 int n_list = 0;
 958                                 for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
 959                                 {
 960                                         Ptr = i->second->chans[0].channel;
 961                                         // suggested by phidjit and FCS
 962                                         if ((!common_channels(user,i->second)) && (isnick(i->second->nick)))
 963                                         {
 964                                                 // Bug Fix #29
 965                                                 strcpy(tmp, "");
 966                                                 if (strcmp(i->second->awaymsg, "")) {
 967                                                         strncat(tmp, "G", 9);
 968                                                 } else {
 969                                                         strncat(tmp, "H", 9);
 970                                                 }
 971                                                 if (strchr(i->second->modes,'o')) { strncat(tmp, "*", 9); }
 972                                                 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);
 973                                                 n_list++;
 974                                                 if (n_list > MaxWhoResults)
 975                                                         break;
 976                                         }
 977                                 }
 978                         }
 979                         if (Ptr)
 980                         {
 981                                 WriteServ(user->fd,"315 %s %s :End of /WHO list.",user->nick , parameters[0]);
 982                         }
 983                         else
 984                         {
 985                                 WriteServ(user->fd,"315 %s %s :End of /WHO list.",user->nick, parameters[0]);
 986                         }
 987                         return;
 988                 }
 989                 if (parameters[0][0] == '#')
 990                 {
 991                         Ptr = FindChan(parameters[0]);
 992                         if (Ptr)
 993                         {
 994                                 for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
 995                                 {
 996                                         if ((has_channel(i->second,Ptr)) && (isnick(i->second->nick)))
 997                                         {
 998                                                 // Fix Bug #29 - Part 2..
 999                                                 strcpy(tmp, "");
1000                                                 if (strcmp(i->second->awaymsg, "")) {
1001                                                         strncat(tmp, "G", 9);
1002                                                 } else {
1003                                                         strncat(tmp, "H", 9);
1004                                                 }
1005                                                 if (strchr(i->second->modes,'o')) { strncat(tmp, "*", 9); }
1006                                                 strcat(tmp, cmode(i->second, Ptr));
1007                                                 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);
1008                                         }
1009                                 }
1010                                 WriteServ(user->fd,"315 %s %s :End of /WHO list.",user->nick, parameters[0]);
1011                         }
1012                         else
1013                         {
1014                                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
1015                         }
1016                 }
1017                 else
1018                 {
1019                         userrec* u = Find(parameters[0]);
1020                         if (u)
1021                         {
1022                                 // Bug Fix #29 -- Part 29..
1023                                 strcpy(tmp, "");
1024                                 if (strcmp(u->awaymsg, "")) {
1025                                         strncat(tmp, "G" ,9);
1026                                 } else {
1027                                         strncat(tmp, "H" ,9);
1028                                 }
1029                                 if (strchr(u->modes,'o')) { strncat(tmp, "*" ,9); }
1030                                 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);
1031                         }
1032                         WriteServ(user->fd,"315 %s %s :End of /WHO list.",user->nick, parameters[0]);
1033                 }
1034         }
1035         if (pcnt == 2)
1036         {
1037                 if ((!strcmp(parameters[0],"0")) || (!strcmp(parameters[0],"*")) && (!strcmp(parameters[1],"o")))
1038                 {
1039                         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
1040                         {
1041                                 if ((common_channels(user,i->second)) && (isnick(i->second->nick)))
1042                                 {
1043                                         if (strchr(i->second->modes,'o'))
1044                                         {
1045                                                 // If i were a rich man.. I wouldn't need to me making these bugfixes..
1046                                                 // But i'm a poor bastard with nothing better to do.
1047                                                 strcpy(tmp, "");
1048                                                 if (strcmp(i->second->awaymsg, "")) {
1049                                                         strncat(tmp, "G" ,9);
1050                                                 } else {
1051                                                         strncat(tmp, "H" ,9);
1052                                                 }
1053
1054                                                 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);
1055                                         }
1056                                 }
1057                         }
1058                         WriteServ(user->fd,"315 %s %s :End of /WHO list.",user->nick, parameters[0]);
1059                         return;
1060                 }
1061         }
1062 }
1063
1064 void handle_wallops(char **parameters, int pcnt, userrec *user)
1065 {
1066         WriteWallOps(user,false,"%s",parameters[0]);
1067 }
1068
1069 void handle_list(char **parameters, int pcnt, userrec *user)
1070 {
1071         WriteServ(user->fd,"321 %s Channel :Users Name",user->nick);
1072         for (chan_hash::const_iterator i = chanlist.begin(); i != chanlist.end(); i++)
1073         {
1074                 if ((!i->second->c_private) && (!i->second->secret))
1075                 {
1076                         WriteServ(user->fd,"322 %s %s %d :[+%s] %s",user->nick,i->second->name,usercount_i(i->second),chanmodes(i->second),i->second->topic);
1077                 }
1078         }
1079         WriteServ(user->fd,"323 %s :End of channel list.",user->nick);
1080 }
1081
1082
1083 void handle_rehash(char **parameters, int pcnt, userrec *user)
1084 {
1085         WriteServ(user->fd,"382 %s %s :Rehashing",user->nick,CleanFilename(CONFIG_FILE));
1086         ReadConfig(false,user);
1087         FOREACH_MOD OnRehash();
1088         WriteOpers("%s is rehashing config file %s",user->nick,CleanFilename(CONFIG_FILE));
1089 }
1090
1091 void handle_lusers(char **parameters, int pcnt, userrec *user)
1092 {
1093         WriteServ(user->fd,"251 %s :There are %d users and %d invisible on %d servers",user->nick,usercnt()-usercount_invisible(),usercount_invisible(),servercount());
1094         WriteServ(user->fd,"252 %s %d :operator(s) online",user->nick,usercount_opers());
1095         WriteServ(user->fd,"253 %s %d :unknown connections",user->nick,usercount_unknown());
1096         WriteServ(user->fd,"254 %s %d :channels formed",user->nick,chancount());
1097         WriteServ(user->fd,"254 %s :I have %d clients and %d servers",user->nick,local_count(),count_servs());
1098 }
1099
1100 void handle_admin(char **parameters, int pcnt, userrec *user)
1101 {
1102         WriteServ(user->fd,"256 %s :Administrative info for %s",user->nick,ServerName);
1103         WriteServ(user->fd,"257 %s :Name     - %s",user->nick,AdminName);
1104         WriteServ(user->fd,"258 %s :Nickname - %s",user->nick,AdminNick);
1105         WriteServ(user->fd,"258 %s :E-Mail   - %s",user->nick,AdminEmail);
1106 }
1107
1108 void handle_ping(char **parameters, int pcnt, userrec *user)
1109 {
1110         WriteServ(user->fd,"PONG %s :%s",ServerName,parameters[0]);
1111 }
1112
1113 void handle_pong(char **parameters, int pcnt, userrec *user)
1114 {
1115         // set the user as alive so they survive to next ping
1116         user->lastping = 1;
1117 }
1118
1119 void handle_motd(char **parameters, int pcnt, userrec *user)
1120 {
1121         ShowMOTD(user);
1122 }
1123
1124 void handle_rules(char **parameters, int pcnt, userrec *user)
1125 {
1126         ShowRULES(user);
1127 }
1128
1129 void handle_user(char **parameters, int pcnt, userrec *user)
1130 {
1131         if (user->registered < 3)
1132         {
1133                 if (isident(parameters[0]) == 0) {
1134                         // This kinda Sucks, According to the RFC thou, its either this,
1135                         // or "You have already registered" :p -- Craig
1136                         WriteServ(user->fd,"461 %s USER :Not enough parameters",user->nick);
1137                 }
1138                 else {
1139                         strcpy(user->ident,"~"); /* we arent checking ident... but these days why bother anyway? */
1140                         strlcat(user->ident,parameters[0],IDENTMAX);
1141                         strlcpy(user->fullname,parameters[3],128);
1142                         user->registered = (user->registered | 1);
1143                 }
1144         }
1145         else
1146         {
1147                 WriteServ(user->fd,"462 %s :You may not reregister",user->nick);
1148                 return;
1149         }
1150         /* parameters 2 and 3 are local and remote hosts, ignored when sent by client connection */
1151         if (user->registered == 3)
1152         {
1153                 /* user is registered now, bit 0 = USER command, bit 1 = sent a NICK command */
1154                 FOREACH_MOD OnUserRegister(user);
1155                 ConnectUser(user);
1156         }
1157 }
1158
1159 void handle_userhost(char **parameters, int pcnt, userrec *user)
1160 {
1161         char Return[MAXBUF],junk[MAXBUF];
1162         snprintf(Return,MAXBUF,"302 %s :",user->nick);
1163         for (int i = 0; i < pcnt; i++)
1164         {
1165                 userrec *u = Find(parameters[i]);
1166                 if (u)
1167                 {
1168                         if (strchr(u->modes,'o'))
1169                         {
1170                                 snprintf(junk,MAXBUF,"%s*=+%s@%s ",u->nick,u->ident,u->host);
1171                                 strlcat(Return,junk,MAXBUF);
1172                         }
1173                         else
1174                         {
1175                                 snprintf(junk,MAXBUF,"%s=+%s@%s ",u->nick,u->ident,u->host);
1176                                 strlcat(Return,junk,MAXBUF);
1177                         }
1178                 }
1179         }
1180         WriteServ(user->fd,Return);
1181 }
1182
1183
1184 void handle_ison(char **parameters, int pcnt, userrec *user)
1185 {
1186         char Return[MAXBUF];
1187         snprintf(Return,MAXBUF,"303 %s :",user->nick);
1188         for (int i = 0; i < pcnt; i++)
1189         {
1190                 userrec *u = Find(parameters[i]);
1191                 if (u)
1192                 {
1193                         strlcat(Return,u->nick,MAXBUF);
1194                         strlcat(Return," ",MAXBUF);
1195                 }
1196         }
1197         WriteServ(user->fd,Return);
1198 }
1199
1200
1201 void handle_away(char **parameters, int pcnt, userrec *user)
1202 {
1203         if (pcnt)
1204         {
1205                 strlcpy(user->awaymsg,parameters[0],512);
1206                 WriteServ(user->fd,"306 %s :You have been marked as being away",user->nick);
1207         }
1208         else
1209         {
1210                 strlcpy(user->awaymsg,"",512);
1211                 WriteServ(user->fd,"305 %s :You are no longer marked as being away",user->nick);
1212         }
1213 }
1214
1215 void handle_whowas(char **parameters, int pcnt, userrec* user)
1216 {
1217         user_hash::iterator i = whowas.find(parameters[0]);
1218
1219         if (i == whowas.end())
1220         {
1221                 WriteServ(user->fd,"406 %s %s :There was no such nickname",user->nick,parameters[0]);
1222                 WriteServ(user->fd,"369 %s %s :End of WHOWAS",user->nick,parameters[0]);
1223         }
1224         else
1225         {
1226                 time_t rawtime = i->second->signon;
1227                 tm *timeinfo;
1228                 char b[MAXBUF];
1229
1230                 timeinfo = localtime(&rawtime);
1231                 strlcpy(b,asctime(timeinfo),MAXBUF);
1232                 b[strlen(b)-1] = '\0';
1233
1234                 WriteServ(user->fd,"314 %s %s %s %s * :%s",user->nick,i->second->nick,i->second->ident,i->second->dhost,i->second->fullname);
1235                 WriteServ(user->fd,"312 %s %s %s :%s",user->nick,i->second->nick,i->second->server,b);
1236                 WriteServ(user->fd,"369 %s %s :End of WHOWAS",user->nick,parameters[0]);
1237         }
1238
1239 }
1240
1241 void handle_trace(char **parameters, int pcnt, userrec *user)
1242 {
1243         for (user_hash::iterator i = clientlist.begin(); i != clientlist.end(); i++)
1244         {
1245                 if (i->second)
1246                 {
1247                         if (isnick(i->second->nick))
1248                         {
1249                                 if (strchr(i->second->modes,'o'))
1250                                 {
1251                                         WriteServ(user->fd,"205 %s :Oper 0 %s",user->nick,i->second->nick);
1252                                 }
1253                                 else
1254                                 {
1255                                         WriteServ(user->fd,"204 %s :User 0 %s",user->nick,i->second->nick);
1256                                 }
1257                         }
1258                         else
1259                         {
1260                                 WriteServ(user->fd,"203 %s :???? 0 [%s]",user->nick,i->second->host);
1261                         }
1262                 }
1263         }
1264 }
1265
1266 void handle_modules(char **parameters, int pcnt, userrec *user)
1267 {
1268         for (int i = 0; i < module_names.size(); i++)
1269         {
1270                 Version V = modules[i]->GetVersion();
1271                 char modulename[MAXBUF];
1272                 char flagstate[MAXBUF];
1273                 strcpy(flagstate,"");
1274                 if (V.Flags & VF_STATIC)
1275                         strlcat(flagstate,", static",MAXBUF);
1276                 if (V.Flags & VF_VENDOR)
1277                         strlcat(flagstate,", vendor",MAXBUF);
1278                 if (V.Flags & VF_COMMON)
1279                         strlcat(flagstate,", common",MAXBUF);
1280                 if (V.Flags & VF_SERVICEPROVIDER)
1281                         strlcat(flagstate,", service provider",MAXBUF);
1282                 if (!flagstate[0])
1283                         strcpy(flagstate,"  <no flags>");
1284                 strlcpy(modulename,module_names[i].c_str(),256);
1285                 if (strchr(user->modes,'o'))
1286                 {
1287                         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);
1288                 }
1289                 else
1290                 {
1291                         WriteServ(user->fd,"900 %s :%s",user->nick,CleanFilename(modulename));
1292                 }
1293         }
1294 }
1295
1296 void handle_stats(char **parameters, int pcnt, userrec *user)
1297 {
1298         char Link_ServerName[MAXBUF],Link_IPAddr[MAXBUF],Link_Port[MAXBUF];
1299         if (pcnt != 1)
1300         {
1301                 return;
1302         }
1303         if (strlen(parameters[0])>1)
1304         {
1305                 /* make the stats query 1 character long */
1306                 parameters[0][1] = '\0';
1307         }
1308
1309
1310         FOREACH_MOD OnStats(*parameters[0]);
1311
1312         if (*parameters[0] == 'c')
1313         {
1314                 for (int i = 0; i < ConfValueEnum("link",&config_f); i++)
1315                 {
1316                         ConfValue("link","name",i,Link_ServerName,&config_f);
1317                         ConfValue("link","ipaddr",i,Link_IPAddr,&config_f);
1318                         ConfValue("link","port",i,Link_Port,&config_f);
1319                         WriteServ(user->fd,"213 %s C *@%s * %s %s 0 M",user->nick,Link_IPAddr,Link_ServerName,Link_Port);
1320                         WriteServ(user->fd,"244 %s H * * %s",user->nick,Link_ServerName);
1321                 }
1322         }
1323
1324         if (*parameters[0] == 'i')
1325         {
1326                 int idx = 0;
1327                 for (ClassVector::iterator i = Classes.begin(); i != Classes.end(); i++)
1328                 {
1329                         WriteServ(user->fd,"215 %s I * * * %d %d %s *",user->nick,MAXCLIENTS,idx,ServerName);
1330                         idx++;
1331                 }
1332         }
1333
1334         if (*parameters[0] == 'y')
1335         {
1336                 int idx = 0;
1337                 for (ClassVector::iterator i = Classes.begin(); i != Classes.end(); i++)
1338                 {
1339                         WriteServ(user->fd,"218 %s Y %d %d 0 %d %d",user->nick,idx,120,i->flood,i->registration_timeout);
1340                         idx++;
1341                 }
1342         }
1343
1344         if (*parameters[0] == 'U')
1345         {
1346                 for (int i = 0; i < ConfValueEnum("uline",&config_f); i++)
1347                 {
1348                         ConfValue("uline","server",i,Link_ServerName,&config_f);
1349                         WriteServ(user->fd,"248 %s U %s",user->nick,Link_ServerName);
1350                 }
1351         }
1352
1353         if (*parameters[0] == 'P')
1354         {
1355                 int idx = 0;
1356                 for (user_hash::iterator i = clientlist.begin(); i != clientlist.end(); i++)
1357                 {
1358                         if (strchr(i->second->modes,'o'))
1359                         {
1360                                 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));
1361                                 idx++;
1362                         }
1363                 }
1364                 WriteServ(user->fd,"249 %s :%d OPER(s)",user->nick,idx);
1365         //249 [Brain] :bwoadway-monitor (~wgmon@204.152.186.58) Idle: 18
1366         }
1367
1368         if (*parameters[0] == 'k')
1369         {
1370                 stats_k(user);
1371         }
1372
1373         if (*parameters[0] == 'g')
1374         {
1375                 stats_g(user);
1376         }
1377
1378         if (*parameters[0] == 'q')
1379         {
1380                 stats_q(user);
1381         }
1382
1383         if (*parameters[0] == 'Z')
1384         {
1385                 stats_z(user);
1386         }
1387
1388         if (*parameters[0] == 'e')
1389         {
1390                 stats_e(user);
1391         }
1392
1393         /* stats m (list number of times each command has been used, plus bytecount) */
1394         if (*parameters[0] == 'm')
1395         {
1396                 for (int i = 0; i < cmdlist.size(); i++)
1397                 {
1398                         if (cmdlist[i].handler_function)
1399                         {
1400                                 if (cmdlist[i].use_count)
1401                                 {
1402                                         /* RPL_STATSCOMMANDS */
1403                                         WriteServ(user->fd,"212 %s %s %d %d",user->nick,cmdlist[i].command,cmdlist[i].use_count,cmdlist[i].total_bytes);
1404                                 }
1405                         }
1406                 }
1407
1408         }
1409
1410         /* stats z (debug and memory info) */
1411         if (*parameters[0] == 'z')
1412         {
1413                 WriteServ(user->fd,"249 %s :Users(HASH_MAP) %d (%d bytes, %d buckets)",user->nick,clientlist.size(),clientlist.size()*sizeof(userrec),clientlist.bucket_count());
1414                 WriteServ(user->fd,"249 %s :Channels(HASH_MAP) %d (%d bytes, %d buckets)",user->nick,chanlist.size(),chanlist.size()*sizeof(chanrec),chanlist.bucket_count());
1415                 WriteServ(user->fd,"249 %s :Commands(VECTOR) %d (%d bytes)",user->nick,cmdlist.size(),cmdlist.size()*sizeof(command_t));
1416                 WriteServ(user->fd,"249 %s :MOTD(VECTOR) %d, RULES(VECTOR) %d",user->nick,MOTD.size(),RULES.size());
1417                 WriteServ(user->fd,"249 %s :address_cache(HASH_MAP) %d (%d buckets)",user->nick,IP.size(),IP.bucket_count());
1418                 WriteServ(user->fd,"249 %s :Modules(VECTOR) %d (%d)",user->nick,modules.size(),modules.size()*sizeof(Module));
1419                 WriteServ(user->fd,"249 %s :ClassFactories(VECTOR) %d (%d)",user->nick,factory.size(),factory.size()*sizeof(ircd_module));
1420                 WriteServ(user->fd,"249 %s :Ports(STATIC_ARRAY) %d",user->nick,boundPortCount);
1421         }
1422
1423         /* stats o */
1424         if (*parameters[0] == 'o')
1425         {
1426                 for (int i = 0; i < ConfValueEnum("oper",&config_f); i++)
1427                 {
1428                         char LoginName[MAXBUF];
1429                         char HostName[MAXBUF];
1430                         char OperType[MAXBUF];
1431                         ConfValue("oper","name",i,LoginName,&config_f);
1432                         ConfValue("oper","host",i,HostName,&config_f);
1433                         ConfValue("oper","type",i,OperType,&config_f);
1434                         WriteServ(user->fd,"243 %s O %s * %s %s 0",user->nick,HostName,LoginName,OperType);
1435                 }
1436         }
1437
1438         /* stats l (show user I/O stats) */
1439         if (*parameters[0] == 'l')
1440         {
1441                 WriteServ(user->fd,"211 %s :server:port nick bytes_in cmds_in bytes_out cmds_out",user->nick);
1442                 for (user_hash::iterator i = clientlist.begin(); i != clientlist.end(); i++)
1443                 {
1444                         if (isnick(i->second->nick))
1445                         {
1446                                 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);
1447                         }
1448                         else
1449                         {
1450                                 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);
1451                         }
1452
1453                 }
1454         }
1455
1456         /* stats u (show server uptime) */
1457         if (*parameters[0] == 'u')
1458         {
1459                 time_t current_time = 0;
1460                 current_time = TIME;
1461                 time_t server_uptime = current_time - startup_time;
1462                 struct tm* stime;
1463                 stime = gmtime(&server_uptime);
1464                 /* i dont know who the hell would have an ircd running for over a year nonstop, but
1465                  * Craig suggested this, and it seemed a good idea so in it went */
1466                 if (stime->tm_year > 70)
1467                 {
1468                         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);
1469                 }
1470                 else
1471                 {
1472                         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);
1473                 }
1474         }
1475
1476         WriteServ(user->fd,"219 %s %s :End of /STATS report",user->nick,parameters[0]);
1477         WriteOpers("*** Notice: Stats '%s' requested by %s (%s@%s)",parameters[0],user->nick,user->ident,user->host);
1478
1479 }
1480
1481 void handle_connect(char **parameters, int pcnt, userrec *user)
1482 {
1483         char Link_ServerName[1024];
1484         char Link_IPAddr[1024];
1485         char Link_Port[1024];
1486         char Link_Pass[1024];
1487         int LinkPort;
1488         bool found = false;
1489
1490         for (int i = 0; i < ConfValueEnum("link",&config_f); i++)
1491         {
1492                 if (!found)
1493                 {
1494                         ConfValue("link","name",i,Link_ServerName,&config_f);
1495                         ConfValue("link","ipaddr",i,Link_IPAddr,&config_f);
1496                         ConfValue("link","port",i,Link_Port,&config_f);
1497                         ConfValue("link","sendpass",i,Link_Pass,&config_f);
1498                         log(DEBUG,"(%d) Comparing against name='%s', ipaddr='%s', port='%s', recvpass='%s'",i,Link_ServerName,Link_IPAddr,Link_Port,Link_Pass);
1499                         LinkPort = atoi(Link_Port);
1500                         if (match(Link_ServerName,parameters[0])) {
1501                                 found = true;
1502                                 break;
1503                         }
1504                 }
1505         }
1506
1507         if (!found) {
1508                 WriteServ(user->fd,"NOTICE %s :*** Failed to connect to %s: No servers matching this pattern are configured for linking.",user->nick,parameters[0]);
1509                 return;
1510         }
1511
1512         // TODO: Perform a check here to stop a server being linked twice!
1513
1514         WriteServ(user->fd,"NOTICE %s :*** Connecting to %s (%s) port %s...",user->nick,Link_ServerName,Link_IPAddr,Link_Port);
1515
1516         if (me[defaultRoute])
1517         {
1518                 me[defaultRoute]->BeginLink(Link_IPAddr,LinkPort,Link_Pass,Link_ServerName,me[defaultRoute]->port);
1519                 return;
1520         }
1521         else
1522         {
1523                 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);
1524         }
1525 }
1526
1527 void handle_squit(char **parameters, int pcnt, userrec *user)
1528 {
1529         // send out an squit across the mesh and then clear the server list (for local squit)
1530         if (!pcnt)
1531         {
1532                 WriteOpers("SQUIT command issued by %s",user->nick);
1533                 char buffer[MAXBUF];
1534                 snprintf(buffer,MAXBUF,"& %s",ServerName);
1535                 NetSendToAll(buffer);
1536                 DoSplitEveryone();
1537         }
1538         else
1539         {
1540                 WriteServ(user->fd,"NOTICE :*** Remote SQUIT not supported yet.");
1541         }
1542 }
1543
1544 void handle_links(char **parameters, int pcnt, userrec *user)
1545 {
1546         WriteServ(user->fd,"364 %s %s %s :0 %s",user->nick,ServerName,ServerName,ServerDesc);
1547         for (int j = 0; j < 32; j++)
1548         {
1549                 if (me[j] != NULL)
1550                 {
1551                         for (int k = 0; k < me[j]->connectors.size(); k++)
1552                         {
1553                                 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());
1554                         }
1555                 }
1556         }
1557         WriteServ(user->fd,"365 %s * :End of /LINKS list.",user->nick);
1558 }
1559
1560 void handle_map(char **parameters, int pcnt, userrec *user)
1561 {
1562         char line[MAXBUF];
1563         snprintf(line,MAXBUF,"006 %s :%s",user->nick,ServerName);
1564         while (strlen(line) < 50)
1565                 strcat(line," ");
1566         WriteServ(user->fd,"%s%d (%.2f%%)",line,local_count(),(float)(((float)local_count()/(float)registered_usercount())*100));
1567         for (int j = 0; j < 32; j++)
1568         {
1569                 if (me[j] != NULL)
1570                 {
1571                         for (int k = 0; k < me[j]->connectors.size(); k++)
1572                         {
1573                                 snprintf(line,MAXBUF,"006 %s :%c-%s",user->nick,islast(me[j]->connectors[k].GetServerName().c_str()),me[j]->connectors[k].GetServerName().c_str());
1574                                 while (strlen(line) < 50)
1575                                         strcat(line," ");
1576                                 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));
1577                         }
1578                 }
1579         }
1580         WriteServ(user->fd,"007 %s :End of /MAP",user->nick);
1581 }
1582
1583 bool is_uline(const char* server)
1584 {
1585         char ServName[MAXBUF];
1586         for (int i = 0; i < ConfValueEnum("uline",&config_f); i++)
1587         {
1588                 ConfValue("uline","server",i,ServName,&config_f);
1589                 if (!strcasecmp(server,ServName))
1590                 {
1591                         return true;
1592                 }
1593         }
1594         return false;
1595 }
1596 int operstrcmp(char* data,char* input)
1597 {
1598         int MOD_RESULT = 0;
1599         FOREACH_RESULT(OnOperCompare(data,input))
1600         log(DEBUG,"operstrcmp: %d",MOD_RESULT);
1601         if (MOD_RESULT == 1)
1602                 return 0;
1603         if (MOD_RESULT == -1)
1604                 return 1;
1605         log(DEBUG,"strcmp fallback: '%s' '%s' %d",data,input,strcmp(data,input));
1606         return strcmp(data,input);
1607 }
1608
1609 void handle_oper(char **parameters, int pcnt, userrec *user)
1610 {
1611         char LoginName[MAXBUF];
1612         char Password[MAXBUF];
1613         char OperType[MAXBUF];
1614         char TypeName[MAXBUF];
1615         char HostName[MAXBUF];
1616         char TheHost[MAXBUF];
1617         int j;
1618         bool found = false;
1619         bool fail2 = false;
1620         char global[MAXBUF];
1621
1622         snprintf(TheHost,MAXBUF,"%s@%s",user->ident,user->host);
1623
1624         for (int i = 0; i < ConfValueEnum("oper",&config_f); i++)
1625         {
1626                 ConfValue("oper","name",i,LoginName,&config_f);
1627                 ConfValue("oper","password",i,Password,&config_f);
1628                 ConfValue("oper","type",i,OperType,&config_f);
1629                 ConfValue("oper","host",i,HostName,&config_f);
1630                 if ((!strcmp(LoginName,parameters[0])) && (!operstrcmp(Password,parameters[1])) && (match(TheHost,HostName)))
1631                 {
1632                         fail2 = true;
1633                         for (j =0; j < ConfValueEnum("type",&config_f); j++)
1634                         {
1635                                 ConfValue("type","name",j,TypeName,&config_f);
1636
1637                                 if (!strcmp(TypeName,OperType))
1638                                 {
1639                                         /* found this oper's opertype */
1640                                         snprintf(global,MAXBUF,"| %s %s",user->nick,TypeName);
1641                                         NetSendToAll(global);
1642                                         ConfValue("type","host",j,HostName,&config_f);
1643                                         ChangeDisplayedHost(user,HostName);
1644                                         strlcpy(user->oper,TypeName,NICKMAX);
1645                                         found = true;
1646                                         fail2 = false;
1647                                         break;
1648                                 }
1649                         }
1650                 }
1651                 if (found)
1652                         break;
1653         }
1654         if (found)
1655         {
1656                 /* correct oper credentials */
1657                 WriteOpers("*** %s (%s@%s) is now an IRC operator of type %s",user->nick,user->ident,user->host,OperType);
1658                 WriteServ(user->fd,"381 %s :You are now an IRC operator of type %s",user->nick,OperType);
1659                 if (!strchr(user->modes,'o'))
1660                 {
1661                         strcat(user->modes,"o");
1662                         WriteServ(user->fd,"MODE %s :+o",user->nick);
1663                         snprintf(global,MAXBUF,"M %s +o",user->nick);
1664                         NetSendToAll(global);
1665                         FOREACH_MOD OnOper(user);
1666                         log(DEFAULT,"OPER: %s!%s@%s opered as type: %s",user->nick,user->ident,user->host,OperType);
1667                 }
1668         }
1669         else
1670         {
1671                 if (!fail2)
1672                 {
1673                         WriteServ(user->fd,"491 %s :Invalid oper credentials",user->nick);
1674                         WriteOpers("*** WARNING! Failed oper attempt by %s!%s@%s!",user->nick,user->ident,user->host);
1675                         log(DEFAULT,"OPER: Failed oper attempt by %s!%s@%s: user, host or password did not match.",user->nick,user->ident,user->host);
1676                 }
1677                 else
1678                 {
1679                         WriteServ(user->fd,"491 %s :Your oper block does not have a valid opertype associated with it",user->nick);
1680                         WriteOpers("*** CONFIGURATION ERROR! Oper block mismatch for OperType %s",OperType);
1681                         log(DEFAULT,"OPER: Failed oper attempt by %s!%s@%s: credentials valid, but oper type nonexistent.",user->nick,user->ident,user->host);
1682                 }
1683         }
1684         return;
1685 }
1686
1687 void handle_nick(char **parameters, int pcnt, userrec *user)
1688 {
1689         if (pcnt < 1)
1690         {
1691                 log(DEBUG,"not enough params for handle_nick");
1692                 return;
1693         }
1694         if (!parameters[0])
1695         {
1696                 log(DEBUG,"invalid parameter passed to handle_nick");
1697                 return;
1698         }
1699         if (!parameters[0][0])
1700         {
1701                 log(DEBUG,"zero length new nick passed to handle_nick");
1702                 return;
1703         }
1704         if (!user)
1705         {
1706                 log(DEBUG,"invalid user passed to handle_nick");
1707                 return;
1708         }
1709         if (!user->nick)
1710         {
1711                 log(DEBUG,"invalid old nick passed to handle_nick");
1712                 return;
1713         }
1714         if (!strcasecmp(user->nick,parameters[0]))
1715         {
1716                 log(DEBUG,"old nick is new nick, skipping");
1717                 return;
1718         }
1719         else
1720         {
1721                 if (strlen(parameters[0]) > 1)
1722                 {
1723                         if (parameters[0][0] == ':')
1724                         {
1725                                 *parameters[0]++;
1726                         }
1727                 }
1728                 if (matches_qline(parameters[0]))
1729                 {
1730                         WriteOpers("*** Q-Lined nickname %s from %s!%s@%s: %s",parameters[0],user->nick,user->ident,user->host,matches_qline(parameters[0]));
1731                         WriteServ(user->fd,"432 %s %s :Invalid nickname: %s",user->nick,parameters[0],matches_qline(parameters[0]));
1732                         return;
1733                 }
1734                 if ((Find(parameters[0])) && (Find(parameters[0]) != user))
1735                 {
1736                         WriteServ(user->fd,"433 %s %s :Nickname is already in use.",user->nick,parameters[0]);
1737                         return;
1738                 }
1739         }
1740         if (isnick(parameters[0]) == 0)
1741         {
1742                 WriteServ(user->fd,"432 %s %s :Erroneous Nickname",user->nick,parameters[0]);
1743                 return;
1744         }
1745
1746         if (user->registered == 7)
1747         {
1748                 int MOD_RESULT = 0;
1749                 FOREACH_RESULT(OnUserPreNick(user,parameters[0]));
1750                 if (MOD_RESULT) {
1751                         // if a module returns true, the nick change is silently forbidden.
1752                         return;
1753                 }
1754
1755                 WriteCommon(user,"NICK %s",parameters[0]);
1756
1757                 // Q token must go to ALL servers!!!
1758                 char buffer[MAXBUF];
1759                 snprintf(buffer,MAXBUF,"n %s %s",user->nick,parameters[0]);
1760                 NetSendToAll(buffer);
1761         }
1762
1763         char oldnick[NICKMAX];
1764         strlcpy(oldnick,user->nick,NICKMAX);
1765
1766         /* change the nick of the user in the users_hash */
1767         user = ReHashNick(user->nick, parameters[0]);
1768         /* actually change the nick within the record */
1769         if (!user) return;
1770         if (!user->nick) return;
1771
1772         strlcpy(user->nick, parameters[0],NICKMAX);
1773
1774         log(DEBUG,"new nick set: %s",user->nick);
1775
1776         if (user->registered < 3)
1777         {
1778                 user->registered = (user->registered | 2);
1779                 // dont attempt to look up the dns until they pick a nick... because otherwise their pointer WILL change
1780                 // and unless we're lucky we'll get a duff one later on.
1781                 user->dns_done = (!lookup_dns(user->nick));
1782                 if (user->dns_done)
1783                         log(DEBUG,"Aborting dns lookup of %s because dns server experienced a failure.",user->nick);
1784         }
1785         if (user->registered == 3)
1786         {
1787                 /* user is registered now, bit 0 = USER command, bit 1 = sent a NICK command */
1788                 FOREACH_MOD OnUserRegister(user);
1789                 ConnectUser(user);
1790         }
1791         if (user->registered == 7)
1792         {
1793                 FOREACH_MOD OnUserPostNick(user,oldnick);
1794         }
1795 }
1796
1797
1798
1799 void handle_V(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
1800 {
1801         char* src = strtok(params," ");
1802         char* dest = strtok(NULL," :");
1803         char* text = strtok(NULL,"\r\n");
1804         text++;
1805
1806         userrec* user = Find(src);
1807         if (user)
1808         {
1809                 userrec* dst = Find(dest);
1810
1811                 if (dst)
1812                 {
1813                         WriteTo(user, dst, "NOTICE %s :%s", dst->nick, text);
1814                 }
1815                 else
1816                 {
1817                         chanrec* d = FindChan(dest);
1818                         if (d)
1819                         {
1820                                 ChanExceptSender(d, user, "NOTICE %s :%s", d->name, text);
1821                         }
1822                 }
1823         }
1824
1825 }
1826
1827
1828 void handle_P(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
1829 {
1830         char* src = strtok(params," ");
1831         char* dest = strtok(NULL," :");
1832         char* text = strtok(NULL,"\r\n");
1833         text++;
1834
1835         userrec* user = Find(src);
1836         if (user)
1837         {
1838                 userrec* dst = Find(dest);
1839
1840                 if (dst)
1841                 {
1842                         WriteTo(user, dst, "PRIVMSG %s :%s", dst->nick, text);
1843                 }
1844                 else
1845                 {
1846                         chanrec* d = FindChan(dest);
1847                         if (d)
1848                         {
1849                                 ChanExceptSender(d, user, "PRIVMSG %s :%s", d->name, text);
1850                         }
1851                 }
1852         }
1853
1854 }
1855
1856 void handle_i(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
1857 {
1858         char* nick = strtok(params," ");
1859         char* from = strtok(NULL," ");
1860         char* channel = strtok(NULL," ");
1861         userrec* u = Find(nick);
1862         userrec* user = Find(from);
1863         chanrec* c = FindChan(channel);
1864         if ((c) && (u) && (user))
1865         {
1866                 u->InviteTo(c->name);
1867                 WriteFrom(u->fd,user,"INVITE %s :%s",u->nick,c->name);
1868         }
1869 }
1870
1871 void handle_t(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
1872 {
1873         char* setby = strtok(params," ");
1874         char* channel = strtok(NULL," :");
1875         char* topic = strtok(NULL,"\r\n");
1876         topic++;
1877         userrec* u = Find(setby);
1878         chanrec* c = FindChan(channel);
1879         if ((c) && (u))
1880         {
1881                 WriteChannelLocal(c,u,"TOPIC %s :%s",c->name,topic);
1882                 strlcpy(c->topic,topic,MAXTOPIC);
1883                 strlcpy(c->setby,u->nick,NICKMAX);
1884                 c->topicset = TIME;
1885         }
1886 }
1887
1888
1889 void handle_T(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
1890 {
1891         char* tm = strtok(params," ");
1892         char* setby = strtok(NULL," ");
1893         char* channel = strtok(NULL," :");
1894         char* topic = strtok(NULL,"\r\n");
1895         topic++;
1896         time_t TS = atoi(tm);
1897         chanrec* c = FindChan(channel);
1898         if (c)
1899         {
1900                 // in the case of topics and TS, the *NEWER*
1901                 if (TS <= c->topicset)
1902                 {
1903                         WriteChannelLocal(c,NULL,"TOPIC %s :%s",c->name,topic);
1904                         strlcpy(c->topic,topic,MAXTOPIC);
1905                         strlcpy(c->setby,setby,NICKMAX);
1906                 }
1907         }
1908 }
1909
1910 void handle_M(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
1911 {
1912         char* pars[128];
1913         char original[MAXBUF],target[MAXBUF];
1914         strlcpy(original,params,MAXBUF);
1915         int index = 0;
1916         char* parameter = strtok(params," ");
1917         strlcpy(target,parameter,MAXBUF);
1918         while (parameter)
1919         {
1920                 if (parameter[0] == ':')
1921                         parameter++;
1922                 pars[index++] = parameter;
1923                 parameter = strtok(NULL," ");
1924         }
1925         log(DEBUG,"*** MODE: %s %s",pars[0],pars[1]);
1926         merge_mode(pars,index);
1927         if (FindChan(target))
1928         {
1929                 WriteChannelLocal(FindChan(target), NULL, "MODE %s",original);
1930         }
1931         if (Find(target))
1932         {
1933                 Write(Find(target)->fd,":%s MODE %s",ServerName,original);
1934         }
1935 }
1936
1937 // m is modes set by users only (not servers) valid targets are channels or users.
1938
1939 void handle_m(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
1940 {
1941         // m blah #chatspike +b *!test@*4
1942         char* pars[128];
1943         char original[MAXBUF];
1944         strlcpy(original,params,MAXBUF);
1945
1946         if (!strchr(params,' '))
1947         {
1948                 WriteOpers("WARNING! 'm' token in data stream without any parameters! Something fishy is going on!");
1949                 return;
1950         }
1951
1952         int index = 0;
1953
1954         char* src = strtok(params," ");
1955         userrec* user = Find(src);
1956
1957         if (user)
1958         {
1959                 log(DEBUG,"Found user: %s",user->nick);
1960                 char* parameter = strtok(NULL," ");
1961                 while (parameter)
1962                 {
1963                         pars[index++] = parameter;
1964                         parameter = strtok(NULL," ");
1965                 }
1966
1967                 log(DEBUG,"Calling merge_mode2");
1968                 merge_mode2(pars,index,user);
1969         }
1970 }
1971
1972
1973 void handle_L(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
1974 {
1975         char* nick = NULL;
1976         char* channel = NULL;
1977         char* reason = NULL;
1978         log(DEBUG,"L TOKEN PARS: '%s'",params);
1979         if (strstr(params,":#"))
1980         {
1981                 nick = strtok(params," ");
1982                 channel = strtok(NULL,"\r\n");
1983                 channel++;
1984                 reason = "";
1985         }
1986         else
1987         {
1988                 nick = strtok(params," ");
1989                 channel = strtok(NULL," :");
1990                 reason = strtok(NULL,"\r\n");
1991                 reason++;
1992         }
1993         userrec* user = Find(nick);
1994         if ((user) && (channel) && (reason))
1995         {
1996                 if ((!reason) && (*reason != '\0'))
1997                 {
1998                         del_channel(user,channel,reason,true);
1999                 }
2000                 else
2001                 {
2002                         del_channel(user,channel,NULL,true);
2003                 }
2004         }
2005 }
2006
2007 void handle_K(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2008 {
2009         char* src = strtok(params," ");
2010         char* nick = strtok(NULL," :");
2011         char* reason = strtok(NULL,"\r\n");
2012         char kreason[MAXBUF];
2013         reason++;
2014
2015         userrec* u = Find(nick);
2016         userrec* user = Find(src);
2017
2018         if ((user) && (u))
2019         {
2020                 WriteTo(user, u, "KILL %s :%s!%s!%s!%s (%s)", u->nick, source->name, ServerName, user->dhost,user->nick,reason);
2021                 WriteOpers("*** Remote kill from %s by %s: %s!%s@%s (%s)",source->name,user->nick,u->nick,u->ident,u->host,reason);
2022                 snprintf(kreason,MAXBUF,"[%s] Killed (%s (%s))",source->name,user->nick,reason);
2023                 kill_link(u,kreason);
2024         }
2025 }
2026
2027 void handle_Q(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2028 {
2029         char* nick = strtok(params," :");
2030         char* reason = strtok(NULL,"\r\n");
2031         reason++;
2032
2033         userrec* user = Find(nick);
2034
2035         if (user)
2036         {
2037                 if (strlen(reason)>MAXQUIT)
2038                 {
2039                         reason[MAXQUIT-1] = '\0';
2040                 }
2041
2042
2043                 WriteCommonExcept(user,"QUIT :%s",reason);
2044
2045                 user_hash::iterator iter = clientlist.find(user->nick);
2046
2047                 if (iter != clientlist.end())
2048                 {
2049                         log(DEBUG,"deleting user hash value %d",iter->second);
2050                         clientlist.erase(iter);
2051                 }
2052
2053                 if (user->registered == 7)
2054                 {
2055                         purge_empty_chans(user);
2056                 }
2057         }
2058 }
2059
2060 void handle_n(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2061 {
2062         char* oldnick = strtok(params," ");
2063         char* newnick = strtok(NULL," ");
2064
2065         userrec* user = Find(oldnick);
2066
2067         if (user)
2068         {
2069                 WriteCommon(user,"NICK %s",newnick);
2070                 if (is_uline(tcp_host))
2071                 {
2072                         int MOD_RESULT = 0;
2073                         FOREACH_RESULT(OnUserPreNick(user,newnick));
2074                         if (MOD_RESULT) {
2075                                 // if a module returns true, the nick change couldnt be allowed
2076                                 kill_link(user,"Nickname collision");
2077                                 return;
2078                         }
2079                         if (matches_qline(newnick))
2080                         {
2081                                 kill_link(user,"Nickname collision");
2082                                 return;
2083                         }
2084
2085                         // broadcast this because its a services thingy
2086                         char buffer[MAXBUF];
2087                         snprintf(buffer,MAXBUF,"n %s %s",user->nick,newnick);
2088                         NetSendToAll(buffer);
2089                 }
2090                 user = ReHashNick(user->nick, newnick);
2091                 if (!user) return;
2092                 if (!user->nick) return;
2093                 strlcpy(user->nick, newnick,NICKMAX);
2094                 log(DEBUG,"new nick set: %s",user->nick);
2095         }
2096 }
2097
2098 // k <SOURCE> <DEST> <CHANNEL> :<REASON>
2099 void handle_k(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2100 {
2101         char* src = strtok(params," ");
2102         char* dest = strtok(NULL," ");
2103         char* channel = strtok(NULL," :");
2104         char* reason = strtok(NULL,"\r\n");
2105         reason++;
2106         userrec* s = Find(src);
2107         userrec* d = Find(dest);
2108         chanrec* c = FindChan(channel);
2109         if ((s) && (d) && (c))
2110         {
2111                 kick_channel(s,d,c,reason);
2112                 return;
2113         }
2114         d = Find(channel);
2115         c = FindChan(dest);
2116         if ((s) && (d) && (c))
2117         {
2118                 kick_channel(s,d,c,reason);
2119                 return;
2120         }
2121 }
2122
2123 void handle_AT(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2124 {
2125         char* who = strtok(params," :");
2126         char* text = strtok(NULL,"\r\n");
2127         text++;
2128         userrec* s = Find(who);
2129         if (s)
2130         {
2131                 WriteWallOps(s,true,text);
2132         }
2133 }
2134
2135 void handle_H(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2136 {
2137         log(DEBUG,"Adding ULined server %s to my map",params);
2138         ircd_connector s;
2139         s.SetState(STATE_DISCONNECTED);
2140         s.SetServerName(params);
2141
2142         for (int j = 0; j < 32; j++)
2143         {
2144                 if (me[j] != NULL)
2145                 {
2146                         for (int k = 0; k < me[j]->connectors.size(); k++)
2147                         {
2148                                 if (!strcasecmp(me[j]->connectors[k].GetServerName().c_str(),params))
2149                                 {
2150                                         // dont allow a server to be added twice
2151                                         log(DEBUG,"ULined server %s already in the map!",params);
2152                                         return;
2153                                 }
2154                         }
2155                 }
2156         }
2157
2158         source->connectors.push_back(s);
2159         WriteOpers("Non-Mesh server %s has joined the network",params);
2160 }
2161
2162 void handle_N(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2163 {
2164         char* tm = strtok(params," ");
2165         char* nick = strtok(NULL," ");
2166         char* host = strtok(NULL," ");
2167         char* dhost = strtok(NULL," ");
2168         char* ident = strtok(NULL," ");
2169         char* modes = strtok(NULL," ");
2170         char* ipaddr = strtok(NULL," ");
2171         char* server = strtok(NULL," :");
2172         char* gecos = strtok(NULL,"\r\n");
2173         gecos++;
2174         modes++;
2175         time_t TS = atoi(tm);
2176         user_hash::iterator iter = clientlist.find(nick);
2177         if (iter != clientlist.end())
2178         {
2179                 // nick collision
2180                 WriteOpers("Nickname collision: %s@%s != %s@%s",nick,server,iter->second->nick,iter->second->server);
2181                 char str[MAXBUF];
2182                 snprintf(str,MAXBUF,"Killed (Nick Collision (%s@%s < %s@%s))",nick,server,iter->second->nick,iter->second->server);
2183                 WriteServ(iter->second->fd, "KILL %s :%s",iter->second->nick,str);
2184                 kill_link(iter->second,str);
2185         }
2186         clientlist[nick] = new userrec();
2187         // remote users have an fd of -1. This is so that our Write abstraction
2188         // routines know to route any messages to this record away to whatever server
2189         // theyre on.
2190         clientlist[nick]->fd = -1;
2191         strlcpy(clientlist[nick]->nick, nick,NICKMAX);
2192         strlcpy(clientlist[nick]->host, host,160);
2193         strlcpy(clientlist[nick]->dhost, dhost,160);
2194         strlcpy(clientlist[nick]->server, server,256);
2195         strlcpy(clientlist[nick]->ident, ident,10); // +1 char to compensate for tilde
2196         strlcpy(clientlist[nick]->fullname, gecos,128);
2197         strlcpy(clientlist[nick]->ip,ipaddr,32);
2198         clientlist[nick]->signon = TS;
2199         clientlist[nick]->nping = 0; // this is ignored for a remote user anyway.
2200         clientlist[nick]->lastping = 1;
2201         clientlist[nick]->port = 0; // so is this...
2202         clientlist[nick]->registered = 7; // this however we need to set for them to receive messages and appear online
2203         clientlist[nick]->idle_lastmsg = TIME; // this is unrealiable and wont actually be used locally
2204         for (int i = 0; i < MAXCHANS; i++)
2205         {
2206                 clientlist[nick]->chans[i].channel = NULL;
2207                 clientlist[nick]->chans[i].uc_modes = 0;
2208         }
2209         FOREACH_MOD OnGlobalConnect(clientlist[nick]);
2210         if (strchr(clientlist[nick]->modes,'o'))
2211         {
2212                 FOREACH_MOD OnGlobalOper(clientlist[nick]);
2213         }
2214 }
2215
2216 void handle_F(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2217 {
2218         long tdiff = TIME - atoi(params);
2219         if (tdiff)
2220                 WriteOpers("TS split for %s -> %s: %d",source->name,reply->name,tdiff);
2221 }
2222
2223 void handle_a(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2224 {
2225         char* nick = strtok(params," :");
2226         char* gecos = strtok(NULL,"\r\n");
2227
2228         userrec* user = Find(nick);
2229
2230         if (user)
2231                 strlcpy(user->fullname,gecos,MAXBUF);
2232 }
2233
2234 void handle_b(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2235 {
2236         char* nick = strtok(params," ");
2237         char* host = strtok(NULL," ");
2238
2239         userrec* user = Find(nick);
2240
2241         if (user)
2242                 strlcpy(user->dhost,host,160);
2243 }
2244
2245 void handle_plus(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2246 {
2247         // %s %s %d %d
2248         // + test3.chatspike.net 7010 -2016508415
2249         char* servername = strtok(params," ");
2250         char* ipaddr = strtok(NULL," ");
2251         char* ipport = strtok(NULL," ");
2252         char* cookie = strtok(NULL," ");
2253         log(DEBUG,"*** Connecting back to %s:%d",ipaddr,atoi(ipport));
2254
2255
2256         bool conn_already = false;
2257         for (int i = 0; i < 32; i++)
2258         {
2259                 if (me[i] != NULL)
2260                 {
2261                         for (int j = 0; j < me[i]->connectors.size(); j++)
2262                         {
2263                                 if (!strcasecmp(me[i]->connectors[j].GetServerName().c_str(),servername))
2264                                 {
2265                                         if (me[i]->connectors[j].GetServerPort() == atoi(ipport))
2266                                         {
2267                                                 log(DEBUG,"Already got a connection to %s:%d, ignoring +",ipaddr,atoi(ipport));
2268                                                 conn_already = true;
2269                                         }
2270                                 }
2271                         }
2272                 }
2273         }
2274         if (!conn_already)
2275                 me[defaultRoute]->MeshCookie(ipaddr,atoi(ipport),atoi(cookie),servername);
2276 }
2277
2278 void handle_R(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2279 {
2280         char* server = strtok(params," ");
2281         char* data = strtok(NULL,"\r\n");
2282         if ((!data) || (!server))
2283         {
2284                 log(DEBUG,"Someones playing silly buggers, attempting to send to a null server or send a null message (BUG?)");
2285                 return;
2286         }
2287
2288         log(DEBUG,"Forwarded packet '%s' to '%s'",data,server);
2289         NetSendToOne(server,data);
2290 }
2291
2292 void handle_J(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2293 {
2294         // IMPORTANT NOTE
2295         // The J token currently has no timestamp - this needs looking at
2296         // because it will allow splitriding.
2297         char* nick = strtok(params," ");
2298         char* channel = strtok(NULL," ");
2299         userrec* user = Find(nick);
2300         while (channel)
2301         {
2302                 if ((user != NULL) && (strcmp(channel,"")))
2303                 {
2304                         char privilage = '\0';
2305                         if (channel[0] != '#')
2306                         {
2307                                 privilage = channel[0];
2308                                 channel++;
2309                         }
2310                         add_channel(user,channel,"",true);
2311
2312                         // now work out the privilages they should have on each channel
2313                         // and send the appropriate servermodes.
2314                         for (int i = 0; i != MAXCHANS; i++)
2315                         {
2316                                 if (user->chans[i].channel)
2317                                 {
2318                                         if (!strcasecmp(user->chans[i].channel->name,channel))
2319                                         {
2320                                                 if (privilage == '@')
2321                                                 {
2322                                                         user->chans[i].uc_modes = user->chans[i].uc_modes | UCMODE_OP;
2323                                                         WriteChannelLocal(user->chans[i].channel, NULL, "MODE %s +o %s",channel,user->nick);
2324                                                 }
2325                                                 if (privilage == '%')
2326                                                 {
2327                                                         user->chans[i].uc_modes = user->chans[i].uc_modes | UCMODE_HOP;
2328                                                         WriteChannelLocal(user->chans[i].channel, NULL, "MODE %s +h %s",channel,user->nick);
2329                                                 }
2330                                                 if (privilage == '+')
2331                                                 {
2332                                                         user->chans[i].uc_modes = user->chans[i].uc_modes | UCMODE_VOICE;
2333                                                         WriteChannelLocal(user->chans[i].channel, NULL, "MODE %s +v %s",channel,user->nick);
2334                                                 }
2335                                         }
2336                                 }
2337                         }
2338
2339                 }
2340                 channel = strtok(NULL," ");
2341         }
2342 }
2343
2344 void handle_dollar(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2345 {
2346         log(DEBUG,"Storing routing table...");
2347         char* sourceserver = strtok(params," ");
2348         char* server = strtok(NULL," ");
2349         for (int i = 0; i < 32; i++)
2350         {
2351                 if (me[i] != NULL)
2352                 {
2353                         for (int j = 0; j < me[i]->connectors.size(); j++)
2354                         {
2355                                 if (!strcasecmp(me[i]->connectors[j].GetServerName().c_str(),sourceserver))
2356                                 {
2357                                         me[i]->connectors[j].routes.clear();
2358                                         log(DEBUG,"Found entry for source server.");
2359                                         while (server)
2360                                         {
2361                                                 // store each route
2362                                                 me[i]->connectors[j].routes.push_back(server);
2363                                                 log(DEBUG,"*** Stored route: %s -> %s -> %s",ServerName,sourceserver,server);
2364                                                 server = strtok(NULL," ");
2365                                         }
2366                                         return;
2367                                 }
2368                         }
2369                 }
2370         }
2371         log(DEBUG,"Warning! routing table received from nonexistent server!");
2372 }
2373
2374 void handle_amp(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2375 {
2376         log(DEBUG,"Netsplit! %s split from mesh, removing!",params);
2377         WriteOpers("*** NOTICE - Controlled netsplit: %s split from %s",params,ServerName);
2378         bool go_again = true;
2379         while (go_again)
2380         {
2381                 go_again = false;
2382                 for (int i = 0; i < 32; i++)
2383                 {
2384                         if (me[i] != NULL)
2385                         {
2386                                 for (vector<ircd_connector>::iterator j = me[i]->connectors.begin(); j != me[i]->connectors.end(); j++)
2387                                 {
2388                                         if (!strcasecmp(j->GetServerName().c_str(),params))
2389                                         {
2390                                                 j->routes.clear();
2391                                                 j->CloseConnection();
2392                                                 me[i]->connectors.erase(j);
2393                                                 go_again = true;
2394                                                 break;
2395                                         }
2396                                 }
2397                         }
2398                 }
2399         }
2400         log(DEBUG,"Removed server. Will remove clients...");
2401         // iterate through the userlist and remove all users on this server.
2402         // because we're dealing with a mesh, we dont have to deal with anything
2403         // "down-route" from this server (nice huh)
2404         go_again = true;
2405         char reason[MAXBUF];
2406         snprintf(reason,MAXBUF,"%s %s",ServerName,params);
2407         while (go_again)
2408         {
2409                 go_again = false;
2410                 for (user_hash::const_iterator u = clientlist.begin(); u != clientlist.end(); u++)
2411                 {
2412                         if (!strcasecmp(u->second->server,params))
2413                         {
2414                                 kill_link(u->second,reason);
2415                                 go_again = true;
2416                                 break;
2417                         }
2418                 }
2419         }
2420 }
2421
2422 unsigned long authcookie;
2423
2424 void handle_hash(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2425 {
2426         // # <mask> <who-set-it> <time-set> <duration> :<reason>
2427         log(DEBUG,"Adding G-line");
2428         char* mask = strtok(params," ");
2429         char* who = strtok(NULL," ");
2430         char* create_time = strtok(NULL," ");
2431         char* duration = strtok(NULL," :");
2432         char* reason = strtok(NULL,"\r\n");
2433         reason++;
2434         add_gline(atoi(duration),(const char*)who,(const char*)reason,(const char*)mask);
2435         // we must update the creation time on this gline
2436         // now that we've added it, or it wont expire at the right time.
2437         gline_set_creation_time(mask,atoi(create_time));
2438         if (!atoi(duration))
2439         {
2440                 WriteOpers("*** %s Added permenant G-Line on %s.",who,mask);
2441         }
2442         else
2443         {
2444                 WriteOpers("*** %s Added timed G-Line on %s to expire in %d seconds.",who,mask,atoi(duration));
2445         }
2446         apply_lines();
2447 }
2448
2449 void handle_dot(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2450 {
2451         log(DEBUG,"Removing G-line");
2452         char* mask = strtok(params," ");
2453         char* who = strtok(NULL," ");
2454         if (mask)
2455         {
2456                 if (del_gline((const char*)mask))
2457                 {
2458                         if (who)
2459                         {
2460                                 WriteOpers("*** %s Removed G-line on %s.",who,mask);
2461                         }
2462                 }
2463         }
2464 }
2465
2466 void handle_add_sqline(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2467 {
2468         // { <mask> <who-set-it> <time-set> <duration> :<reason>
2469         log(DEBUG,"Adding Q-line");
2470         char* mask = strtok(params," ");
2471         char* who = strtok(NULL," ");
2472         char* create_time = strtok(NULL," ");
2473         char* duration = strtok(NULL," :");
2474         char* reason = strtok(NULL,"\r\n");
2475         reason++;
2476         add_qline(atoi(duration),(const char*)who,(const char*)reason,(const char*)mask);
2477         // we must update the creation time on this gline
2478         // now that we've added it, or it wont expire at the right time.
2479         qline_set_creation_time(mask,atoi(create_time));
2480         qline_make_global(mask);
2481         if (!atoi(duration))
2482         {
2483                 WriteOpers("*** %s Added permenant Q-Line on %s.",who,mask);
2484         }
2485         else
2486         {
2487                 WriteOpers("*** %s Added timed Q-Line on %s to expire in %d seconds.",who,mask,atoi(duration));
2488         }
2489         apply_lines();
2490 }
2491
2492 void handle_del_sqline(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2493 {
2494         log(DEBUG,"Removing Q-line");
2495         char* mask = strtok(params," ");
2496         char* who = strtok(NULL," ");
2497         if (mask)
2498         {
2499                 if (del_qline((const char*)mask))
2500                 {
2501                         if (who)
2502                         {
2503                                 WriteOpers("*** %s Removed Q-line on %s.",who,mask);
2504                         }
2505                 }
2506         }
2507 }
2508
2509 void handle_add_szline(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2510 {
2511         // } <mask> <who-set-it> <time-set> <duration> :<reason>
2512         log(DEBUG,"Adding Z-line");
2513         char* mask = strtok(params," ");
2514         char* who = strtok(NULL," ");
2515         char* create_time = strtok(NULL," ");
2516         char* duration = strtok(NULL," :");
2517         char* reason = strtok(NULL,"\r\n");
2518         reason++;
2519         add_zline(atoi(duration),(const char*)who,(const char*)reason,(const char*)mask);
2520         // we must update the creation time on this gline
2521         // now that we've added it, or it wont expire at the right time.
2522         zline_set_creation_time(mask,atoi(create_time));
2523         zline_make_global(mask);
2524         if (!atoi(duration))
2525         {
2526                 WriteOpers("*** %s Added permenant Z-Line on %s.",who,mask);
2527         }
2528         else
2529         {
2530                 WriteOpers("*** %s Added timed Z-Line on %s to expire in %d seconds.",who,mask,atoi(duration));
2531         }
2532         apply_lines();
2533 }
2534
2535 void handle_del_szline(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2536 {
2537         log(DEBUG,"Removing Z-line");
2538         char* mask = strtok(params," ");
2539         char* who = strtok(NULL," ");
2540         if (mask)
2541         {
2542                 if (del_zline((const char*)mask))
2543                 {
2544                         if (who)
2545                         {
2546                                 WriteOpers("*** %s Removed Q-line on %s.",who,mask);
2547                         }
2548                 }
2549         }
2550 }
2551
2552 void handle_pipe(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2553 {
2554         char* nick = strtok(params," ");
2555         char* type = strtok(params," ");
2556         userrec* u = Find(nick);
2557         if (u)
2558         {
2559                 strlcpy(u->oper,type,NICKMAX);
2560         }
2561 }
2562
2563
2564 void process_restricted_commands(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host,char* ipaddr,int port)
2565 {
2566         char buffer[MAXBUF];
2567         int MOD_RESULT = 0;
2568
2569         switch(token)
2570         {
2571                 // Y <TS>
2572                 // start netburst
2573                 case 'Y':
2574                         nb_start = TIME;
2575                         WriteOpers("Server %s is starting netburst.",tcp_host);
2576                         // now broadcast this new servers address out to all servers that are linked to us,
2577                         // except the newcomer. They'll all attempt to connect back to it.
2578                         authcookie = rand()*rand();
2579                         snprintf(buffer,MAXBUF,"~ %lu",(unsigned long)authcookie);
2580                         NetSendToAll(buffer);
2581                 break;
2582                 // ~
2583                 // Store authcookie
2584                 // once stored, this authcookie permits other servers to log in
2585                 // without user or password, using it.
2586                 case '~':
2587                         auth_cookies.push_back(atoi(params));
2588                         log(DEBUG,"*** Stored auth cookie, will permit servers with auth-cookie %d",atoi(params));
2589                 break;
2590                 // connect back to a server using an authcookie
2591                 case '+':
2592                         handle_plus(token,params,source,reply,tcp_host);
2593                 break;
2594                 // routing table
2595                 case '$':
2596                         handle_dollar(token,params,source,reply,tcp_host);
2597                 break;
2598                 // node unreachable - we cant route to a server, sooooo we slit it off.
2599                 // servers can generate these for themselves for an squit.
2600                 case '&':
2601                         handle_amp(token,params,source,reply,tcp_host);
2602                 break;
2603                 // R <server> <data>
2604                 // redirect token, send all of <data> along to the given
2605                 // server as this server has been found to still have a route to it
2606                 case 'R':
2607                         handle_R(token,params,source,reply,tcp_host);
2608                 break;
2609                 // ?
2610                 // ping
2611                 case '?':
2612                         reply->SendPacket("!",tcp_host);
2613                 break;
2614                 // ?
2615                 // pong
2616                 case '!':
2617                 break;
2618                 // *
2619                 // no operation
2620                 case '*':
2621                 break;
2622                 // N <TS> <NICK> <HOST> <DHOST> <IDENT> <MODES> <SERVER> :<GECOS>
2623                 // introduce remote client
2624                 case 'N':
2625                         handle_N(token,params,source,reply,tcp_host);
2626                 break;
2627                 // a <NICK> :<GECOS>
2628                 // change GECOS (SETNAME)
2629                 case 'a':
2630                         handle_a(token,params,source,reply,tcp_host);
2631                 break;
2632                 // b <NICK> :<HOST>
2633                 // change displayed host (SETHOST)
2634                 case 'b':
2635                         handle_b(token,params,source,reply,tcp_host);
2636                 break;
2637                 // t <NICK> <CHANNEL> :<TOPIC>
2638                 // change a channel topic
2639                 case 't':
2640                         handle_t(token,params,source,reply,tcp_host);
2641                 break;
2642                 // i <NICK> <CHANNEL>
2643                 // invite a user to a channel
2644                 case 'i':
2645                         handle_i(token,params,source,reply,tcp_host);
2646                 break;
2647                 // k <SOURCE> <DEST> <CHANNEL> :<REASON>
2648                 // kick a user from a channel
2649                 case 'k':
2650                         handle_k(token,params,source,reply,tcp_host);
2651                 break;
2652                 // n <NICK> <NEWNICK>
2653                 // change nickname of client -- a server should only be able to
2654                 // change the nicknames of clients that reside on it unless
2655                 // they are ulined.
2656                 case 'n':
2657                         handle_n(token,params,source,reply,tcp_host);
2658                 break;
2659                 // J <NICK> <CHANLIST>
2660                 // Join user to channel list, merge channel permissions
2661                 case 'J':
2662                         handle_J(token,params,source,reply,tcp_host);
2663                 break;
2664                 // T <TS> <CHANNEL> <TOPICSETTER> :<TOPIC>
2665                 // change channel topic (netburst only)
2666                 case 'T':
2667                         handle_T(token,params,source,reply,tcp_host);
2668                 break;
2669                 // M <TARGET> <MODES> [MODE-PARAMETERS]
2670                 // Server setting modes on an object
2671                 case 'M':
2672                         handle_M(token,params,source,reply,tcp_host);
2673                 break;
2674                 // m <SOURCE> <TARGET> <MODES> [MODE-PARAMETERS]
2675                 // User setting modes on an object
2676                 case 'm':
2677                         handle_m(token,params,source,reply,tcp_host);
2678                 break;
2679                 // P <SOURCE> <TARGET> :<TEXT>
2680                 // Send a private/channel message
2681                 case 'P':
2682                         handle_P(token,params,source,reply,tcp_host);
2683                 break;
2684                 // V <SOURCE> <TARGET> :<TEXT>
2685                 // Send a private/channel notice
2686                 case 'V':
2687                         handle_V(token,params,source,reply,tcp_host);
2688                 break;
2689                 // L <SOURCE> <CHANNEL> :<REASON>
2690                 // User parting a channel
2691                 case 'L':
2692                         handle_L(token,params,source,reply,tcp_host);
2693                 break;
2694                 // Q <SOURCE> :<REASON>
2695                 // user quitting
2696                 case 'Q':
2697                         handle_Q(token,params,source,reply,tcp_host);
2698                 break;
2699                 // H <SERVER>
2700                 // introduce non-meshable server (such as a services server)
2701                 case 'H':
2702                         handle_H(token,params,source,reply,tcp_host);
2703                 break;
2704                 // K <SOURCE> <DEST> :<REASON>
2705                 // remote kill
2706                 case 'K':
2707                         handle_K(token,params,source,reply,tcp_host);
2708                 break;
2709                 // @ <SOURCE> :<TEXT>
2710                 // wallops
2711                 case '@':
2712                         handle_AT(token,params,source,reply,tcp_host);
2713                 break;
2714                 // # <mask> <who-set-it> <time-set> <duration> :<reason>
2715                 // add gline
2716                 case '#':
2717                         handle_hash(token,params,source,reply,tcp_host);
2718                 break;
2719                 // . <mask> <who>
2720                 // remove gline
2721                 case '.':
2722                         handle_dot(token,params,source,reply,tcp_host);
2723                 break;
2724                 // # <mask> <who-set-it> <time-set> <duration> :<reason>
2725                 // add gline
2726                 case '{':
2727                         handle_add_sqline(token,params,source,reply,tcp_host);
2728                 break;
2729                 // . <mask> <who>
2730                 // remove gline
2731                 case '[':
2732                         handle_del_sqline(token,params,source,reply,tcp_host);
2733                 break;
2734                 // # <mask> <who-set-it> <time-set> <duration> :<reason>
2735                 // add gline
2736                 case '}':
2737                         handle_add_szline(token,params,source,reply,tcp_host);
2738                 break;
2739                 // . <mask> <who>
2740                 // remove gline
2741                 case ']':
2742                         handle_del_szline(token,params,source,reply,tcp_host);
2743                 break;
2744                 // | <nick> <opertype>
2745                 // set opertype
2746                 case '|':
2747                         handle_pipe(token,params,source,reply,tcp_host);
2748                 break;
2749                 // F <TS>
2750                 // end netburst
2751                 case 'F':
2752                         WriteOpers("Server %s has completed netburst. (%d secs)",tcp_host,TIME-nb_start);
2753                         handle_F(token,params,source,reply,tcp_host);
2754                         nb_start = 0;
2755                         // tell all the other servers to use this authcookie to connect back again
2756                         // got '+ test3.chatspike.net 7010 -2016508415' from test.chatspike.net
2757                         snprintf(buffer,MAXBUF,"+ %s %s %d %lu",tcp_host,ipaddr,port,(unsigned long)authcookie);
2758                         NetSendToAllExcept(tcp_host,buffer);
2759                 break;
2760                 case '/':
2761                         WriteOpers("Server %s is IRCServices-based server (assumes-SVSMODE) - Nickname Services: %s",tcp_host,params);
2762                         strlcpy(source->nickserv,params,NICKMAX);
2763                 break;
2764                 // F <TS>
2765                 // end netburst with no mesh creation
2766                 case 'f':
2767                         WriteOpers("Server %s has completed netburst. (%d secs)",tcp_host,TIME-nb_start);
2768                         handle_F(token,params,source,reply,tcp_host);
2769                         nb_start = 0;
2770                         // tell everyone else about the new server name so they just add it in the disconnected
2771                         // state
2772                         snprintf(buffer,MAXBUF,"u %s :%s",tcp_host,GetServerDescription(tcp_host).c_str());
2773                         NetSendToAllExcept(tcp_host,buffer);
2774                 break;
2775                 // X <reserved>
2776                 // Send netburst now
2777                 case 'X':
2778                         WriteOpers("Sending my netburst to %s",tcp_host);
2779                         DoSync(source,tcp_host);
2780                         WriteOpers("Send of netburst to %s completed",tcp_host);
2781                         NetSendMyRoutingTable();
2782                 break;
2783                 // anything else
2784                 default:
2785                         MOD_RESULT = 0;
2786                         string_list s;
2787                         char* data = strtok(params," ");
2788                         while (data)
2789                         {
2790                                 if (*data == ':')
2791                                 {
2792                                         // the last item is a special case
2793                                         data++;
2794                                         char datalast[MAXBUF];
2795                                         strlcpy(datalast,data,MAXBUF);
2796                                         data = strtok(NULL," ");
2797                                         while (data)
2798                                         {
2799                                                 strlcpy(datalast," ",MAXBUF);
2800                                                 strlcpy(datalast,data,MAXBUF);
2801                                                 data = strtok(NULL," ");
2802                                         }
2803                                         s.push_back(data);
2804                                         break;
2805                                 }
2806                                 s.push_back(data);
2807                                 data = strtok(NULL," ");
2808                         }
2809                         FOREACH_RESULT(OnMeshToken(token,s,source,reply,tcp_host,ipaddr,port));
2810                         if (!MOD_RESULT)
2811                                 WriteOpers("WARNING! Unknown datagram type '%c'",token);
2812                 break;
2813         }
2814 }
2815
2816
2817 void handle_link_packet(char* udp_msg, char* tcp_host, serverrec *serv)
2818 {
2819         if ((!strncmp(udp_msg,"USER ",5)) || (!strncmp(udp_msg,"NICK ",5)) || (!strncmp(udp_msg,"PASS ",5)) || (!strncmp(udp_msg,"SERVER ",7)))
2820         {
2821                 // a user on a server port, just close their connection.
2822                 RemoveServer(tcp_host);
2823                 return;
2824         }
2825
2826         char response[10240];
2827         char token = udp_msg[0];
2828         char* old = udp_msg;
2829
2830         if ((token != ':') && (strlen(udp_msg)>1) && (udp_msg[1] != ' '))
2831         {
2832                 WriteOpers("*** Discarded %d chars illegal data from %s",strlen(udp_msg),tcp_host);
2833         }
2834
2835         if (token == ':') // leading :servername or details - strip them off (services does this, sucky)
2836         {
2837                 char* src = udp_msg+1;
2838                 while (udp_msg[0] != ' ')
2839                         udp_msg++;
2840                 udp_msg[0] = 0;
2841                 udp_msg++;
2842                 char* comd = udp_msg;
2843                 while (udp_msg[0] != ' ')
2844                         udp_msg++;
2845                 udp_msg[0] = 0;
2846                 udp_msg++;
2847                 char data[MAXBUF];
2848                 char source[MAXBUF];
2849                 char command[MAXBUF];
2850                 strlcpy(data,udp_msg,512);
2851                 strlcpy(source,src,MAXBUF);
2852                 strlcpy(command,comd,MAXBUF);
2853                 udp_msg = old;
2854
2855                 // unused numeric:
2856                 // :services-dev.chatspike.net 433 Craig Craig :Nickname is registered to someone else
2857                 if (!strcmp(command,"433"))
2858                 {
2859                         token = '*';
2860                 }
2861                 if (!strcmp(command,"432"))
2862                 {
2863                         token = '*';
2864                 }
2865                 if (!strcmp(command,"PING"))
2866                 {
2867                         token = '*';
2868                 }
2869                 if (!strcmp(command,"NOTICE"))
2870                 {
2871                         snprintf(udp_msg,MAXBUF,"V %s %s",source,data);
2872                         log(DEBUG,"Rewrote NOTICE from services to: '%s'",udp_msg);
2873                         token = udp_msg[0];
2874                 }
2875                 if (!strcmp(command,"QUIT"))
2876                 {
2877                         if ((!udp_msg) || (!strcmp(data,"")) || (strcmp(data,":")))
2878                         {
2879                                 strcpy(data,":No reason");
2880                         }
2881                         if (!strcmp(data,":"))
2882                         {
2883                                 strcpy(data,":No reason");
2884                         }
2885                         snprintf(udp_msg,MAXBUF,"Q %s %s",source,data);
2886                         log(DEBUG,"Rewrote QUIT from services to: '%s'",udp_msg);
2887                         token = udp_msg[0];
2888                 }
2889                 if (!strcmp(command,"SQUIT"))
2890                 {
2891                         snprintf(udp_msg,MAXBUF,"& %s",source);
2892                         log(DEBUG,"Rewrote SQUIT from services to: '%s'",udp_msg);
2893                         token = udp_msg[0];
2894                 }
2895                 if (!strcmp(command,"SVSMODE"))
2896                 {
2897                         snprintf(udp_msg,MAXBUF,"m %s %s",source,data);
2898                         log(DEBUG,"Rewrote SVSMODE from services to: '%s'",udp_msg);
2899                         token = udp_msg[0];
2900                 }
2901                 if (!strcmp(command,"SVS2MODE"))
2902                 {
2903                         snprintf(udp_msg,MAXBUF,"m %s %s",source,data);
2904                         log(DEBUG,"Rewrote SVS2MODE from services to: '%s'",udp_msg);
2905                         token = udp_msg[0];
2906                 }
2907                 // todo: this wont work without u:lines
2908                 // in give_ops etc allow nick on a u:lined serv to do just about anything
2909                 if (!strcmp(command,"MODE"))
2910                 {
2911                         snprintf(udp_msg,MAXBUF,"m %s %s",source,data);
2912                         log(DEBUG,"Rewrote MODE from services to: '%s'",udp_msg);
2913                         token = udp_msg[0];
2914                 }
2915                 if (!strcmp(command,"KICK"))
2916                 {
2917                         snprintf(udp_msg,MAXBUF,"k %s %s",source,data);
2918                         log(DEBUG,"Rewrote KICK from services to: '%s'",udp_msg);
2919                         token = udp_msg[0];
2920                 }
2921                 if (!strcmp(command,"KILL"))
2922                 {
2923                         snprintf(udp_msg,MAXBUF,"K %s %s",source,data);
2924                         log(DEBUG,"Rewrote KILL from services to: '%s'",udp_msg);
2925                         token = udp_msg[0];
2926                 }
2927                 if (!strcmp(command,"SVSJOIN"))
2928                 {
2929                         snprintf(udp_msg,MAXBUF,"J %s",data);
2930                         NetSendToOne(tcp_host,udp_msg);
2931                         char* nick = strtok(data," ");
2932                         char* chan = strtok(NULL," ");
2933                         log(DEBUG,"Rewrote SVSJOIN from services to: '%s'",udp_msg);
2934                         userrec* u = Find(nick);
2935                         if (u)
2936                         {
2937                                 add_channel(u,chan,"",true);
2938                         }
2939                         token = udp_msg[0];
2940                 }
2941
2942         }
2943
2944         char* params = udp_msg + 2;
2945         char finalparam[1024];
2946         strcpy(finalparam," :xxxx");
2947         if (strstr(udp_msg," :")) {
2948                 strlcpy(finalparam,strstr(udp_msg," :"),1024);
2949         }
2950
2951
2952         if (token == '-') {
2953                 char* cookie = strtok(params," ");
2954                 char* servername = strtok(NULL," ");
2955                 char* serverdesc = finalparam+2;
2956
2957                 WriteOpers("AuthCookie CONNECT from %s (%s)",servername,tcp_host);
2958
2959                 for (int u = 0; u < auth_cookies.size(); u++)
2960                 {
2961                         if (auth_cookies[u] == atoi(cookie))
2962                         {
2963                                 WriteOpers("Allowed cookie from %s, is now part of the mesh",servername);
2964
2965
2966                                 for (int j = 0; j < 32; j++)
2967                                 {
2968                                         if (me[j] != NULL)
2969                                         {
2970                                                 for (int k = 0; k < me[j]->connectors.size(); k++)
2971                                                 {
2972                                                         if (!strcasecmp(me[j]->connectors[k].GetServerName().c_str(),tcp_host))
2973                                                         {
2974                                                                 me[j]->connectors[k].SetServerName(servername);
2975                                                                 me[j]->connectors[k].SetDescription(serverdesc);
2976                                                                 me[j]->connectors[k].SetState(STATE_CONNECTED);
2977                                                                 NetSendMyRoutingTable();
2978                                                                 return;
2979                                                         }
2980                                                 }
2981                                         }
2982                                         WriteOpers("\2WARNING!\2 %s sent us an authentication packet but we are not authenticating with this server right now! Possible intrusion attempt!",tcp_host);
2983                                         return;
2984                                 }
2985
2986
2987                                 return;
2988                         }
2989                 }
2990                 // bad cookie, bad bad! go sit in the corner!
2991                 WriteOpers("Bad cookie from %s!",servername);
2992                 return;
2993         }
2994         else
2995         if (token == 'S') {
2996                 // S test.chatspike.net password portn :ChatSpike InspIRCd test server
2997                 char* servername = strtok(params," ");
2998                 char* password = strtok(NULL," ");
2999                 char* myport = strtok(NULL," ");
3000                 char* revision = strtok(NULL," ");
3001                 char* serverdesc = finalparam+2;
3002
3003                 password = password;
3004
3005                 WriteOpers("CONNECT from %s (%s) (their port: %d)",servername,tcp_host,atoi(myport));
3006
3007                 ircd_connector* cn = serv->FindHost(servername);
3008
3009                 if (cn)
3010                 {
3011                         WriteOpers("CONNECT aborted: Server %s already exists from %s",servername,ServerName);
3012                         char buffer[MAXBUF];
3013                         snprintf(buffer,MAXBUF,"E :Server %s already exists!",servername);
3014                         serv->SendPacket(buffer,tcp_host);
3015                         RemoveServer(tcp_host);
3016                         return;
3017                 }
3018
3019                 if (atoi(revision) != GetRevision())
3020                 {
3021                         WriteOpers("CONNECT aborted: Could not link to %s, is an incompatible version %s, our version is %d",servername,revision,GetRevision());
3022                         char buffer[MAXBUF];
3023                         sprintf(buffer,"E :Version number mismatch");
3024                         serv->SendPacket(buffer,tcp_host);
3025                         RemoveServer(tcp_host);
3026                         RemoveServer(servername);
3027                         return;
3028                 }
3029
3030                 for (int j = 0; j < serv->connectors.size(); j++)
3031                 {
3032                         if (!strcasecmp(serv->connectors[j].GetServerName().c_str(),tcp_host))
3033                         {
3034                                 serv->connectors[j].SetServerName(servername);
3035                                 serv->connectors[j].SetDescription(serverdesc);
3036                                 serv->connectors[j].SetServerPort(atoi(myport));
3037                         }
3038                 }
3039
3040
3041                 char Link_ServerName[1024];
3042                 char Link_IPAddr[1024];
3043                 char Link_Port[1024];
3044                 char Link_Pass[1024];
3045                 char Link_SendPass[1024];
3046                 int LinkPort = 0;
3047
3048                 // search for a corresponding <link> block in the config files
3049                 for (int i = 0; i < ConfValueEnum("link",&config_f); i++)
3050                 {
3051                         ConfValue("link","name",i,Link_ServerName,&config_f);
3052                         ConfValue("link","ipaddr",i,Link_IPAddr,&config_f);
3053                         ConfValue("link","port",i,Link_Port,&config_f);
3054                         ConfValue("link","recvpass",i,Link_Pass,&config_f);
3055                         ConfValue("link","sendpass",i,Link_SendPass,&config_f);
3056                         log(DEBUG,"(%d) Comparing against name='%s', ipaddr='%s', port='%s', recvpass='%s'",i,Link_ServerName,Link_IPAddr,Link_Port,Link_Pass);
3057                         LinkPort = atoi(Link_Port);
3058                         if ((!strcasecmp(Link_ServerName,servername)) && (!strcmp(Link_Pass,password)))
3059                         {
3060                                 // we have a matching link line -
3061                                 // send a 'diminutive' server message back...
3062                                 snprintf(response,10240,"s %s %s :%s",ServerName,Link_SendPass,ServerDesc);
3063                                 serv->SendPacket(response,servername);
3064
3065                                 for (int t = 0; t < serv->connectors.size(); t++)
3066                                 {
3067                                         if (!strcasecmp(serv->connectors[t].GetServerName().c_str(),servername))
3068                                         {
3069                                                 serv->connectors[t].SetState(STATE_CONNECTED);
3070                                         }
3071                                 }
3072
3073                                 return;
3074                         }
3075                 }
3076                 char buffer[MAXBUF];
3077                 sprintf(buffer,"E :Access is denied (no matching link block)");
3078                 serv->SendPacket(buffer,tcp_host);
3079                 WriteOpers("CONNECT from %s denied, no matching link block",servername);
3080                 RemoveServer(tcp_host);
3081                 RemoveServer(servername);
3082                 return;
3083         }
3084         else
3085         if (token == 's') {
3086                 // S test.chatspike.net password :ChatSpike InspIRCd test server
3087                 char* servername = strtok(params," ");
3088                 char* password = strtok(NULL," ");
3089                 char* serverdesc = finalparam+2;
3090
3091                 password = password;
3092
3093                 // TODO: we should do a check here to ensure that this server is one we recently initiated a
3094                 // link with, and didnt hear an 's' or 'E' back from yet (these are the only two valid responses
3095                 // to an 'S' command. If we didn't recently send an 'S' to this server, theyre trying to spoof
3096                 // a connect, so put out an oper alert!
3097
3098                 // for now, just accept all, we'll fix that later.
3099                 WriteOpers("%s accepted our link credentials ",servername);
3100
3101                 char Link_ServerName[1024];
3102                 char Link_IPAddr[1024];
3103                 char Link_Port[1024];
3104                 char Link_Pass[1024];
3105                 char Link_SendPass[1024];
3106                 int LinkPort = 0;
3107
3108                 // search for a corresponding <link> block in the config files
3109                 for (int i = 0; i < ConfValueEnum("link",&config_f); i++)
3110                 {
3111                         ConfValue("link","name",i,Link_ServerName,&config_f);
3112                         ConfValue("link","ipaddr",i,Link_IPAddr,&config_f);
3113                         ConfValue("link","port",i,Link_Port,&config_f);
3114                         ConfValue("link","recvpass",i,Link_Pass,&config_f);
3115                         ConfValue("link","sendpass",i,Link_SendPass,&config_f);
3116                         log(DEBUG,"(%d) Comparing against name='%s', ipaddr='%s', port='%s', recvpass='%s'",i,Link_ServerName,Link_IPAddr,Link_Port,Link_Pass);
3117                         LinkPort = atoi(Link_Port);
3118                         if (!strcasecmp(Link_ServerName,servername))
3119                         {
3120                                 // matching link at this end too, we're all done!
3121                                 // at this point we must begin key exchange and insert this
3122                                 // server into our 'active' table.
3123                                 for (int j = 0; j < 32; j++)
3124                                 {
3125                                         if (me[j] != NULL)
3126                                         {
3127                                                 for (int k = 0; k < me[j]->connectors.size(); k++)
3128                                                 {
3129                                                         if (!strcasecmp(me[j]->connectors[k].GetServerName().c_str(),tcp_host))
3130                                                         {
3131                                                                 char buffer[MAXBUF];
3132                                                                 me[j]->connectors[k].SetDescription(serverdesc);
3133                                                                 me[j]->connectors[k].SetState(STATE_CONNECTED);
3134                                                                 sprintf(buffer,"X 0");
3135                                                                 serv->SendPacket(buffer,tcp_host);
3136                                                                 DoSync(me[j],tcp_host);
3137                                                                 NetSendMyRoutingTable();
3138                                                                 return;
3139                                                         }
3140                                                 }
3141                                         }
3142                                 }
3143                         }
3144                         else {
3145                                 log(DEBUG,"Server names '%s' and '%s' don't match",Link_ServerName,servername);
3146                         }
3147                 }
3148                 char buffer[MAXBUF];
3149                 sprintf(buffer,"E :Access is denied (no matching link block)");
3150                 serv->SendPacket(buffer,tcp_host);
3151                 WriteOpers("CONNECT from %s denied, no matching link block",servername);
3152                 RemoveServer(tcp_host);
3153                 RemoveServer(servername);
3154                 return;
3155         }
3156         else
3157         if (token == 'U') {
3158                 // U services.chatspike.net password :ChatSpike Services
3159                 //
3160                 // non-meshed link, used by services. Everything coming from a non-meshed link is auto broadcasted.
3161                 char* servername = strtok(params," ");
3162                 char* password = strtok(NULL," ");
3163                 char* serverdesc = finalparam+2;
3164
3165                 char Link_ServerName[1024];
3166                 char Link_IPAddr[1024];
3167                 char Link_Port[1024];
3168                 char Link_Pass[1024];
3169                 char Link_SendPass[1024];
3170                 int LinkPort = 0;
3171
3172                 log(DEBUG,"U-token linked server detected.\n\nservername='%s' password='%s'\n\n",servername,password);
3173
3174
3175                 for (int j = 0; j < 32; j++)
3176                 {
3177                         if (me[j] != NULL)
3178                         {
3179                                 for (int k = 0; k < me[j]->connectors.size(); k++)
3180                                 {
3181                                         if (!strcasecmp(me[j]->connectors[k].GetServerName().c_str(),servername))
3182                                         {
3183                                                 char buffer[MAXBUF];
3184                                                 sprintf(buffer,"E :Access is denied (Server exists in the mesh)");
3185                                                 serv->SendPacket(buffer,tcp_host);
3186                                                 WriteOpers("CONNECT from %s denied, \"%s\" already exists!",tcp_host,servername);
3187                                                 RemoveServer(tcp_host);
3188                                                 return;
3189                                         }
3190                                 }
3191                         }
3192                 }
3193
3194                 // search for a corresponding <link> block in the config files
3195                 for (int i = 0; i < ConfValueEnum("link",&config_f); i++)
3196                 {
3197                         ConfValue("link","name",i,Link_ServerName,&config_f);
3198                         ConfValue("link","ipaddr",i,Link_IPAddr,&config_f);
3199                         ConfValue("link","port",i,Link_Port,&config_f);
3200                         ConfValue("link","recvpass",i,Link_Pass,&config_f);
3201                         ConfValue("link","sendpass",i,Link_SendPass,&config_f);
3202                         log(DEBUG,"(%d) Comparing against name='%s', ipaddr='%s', port='%s', recvpass='%s'",i,Link_ServerName,Link_IPAddr,Link_Port,Link_Pass);
3203                         LinkPort = atoi(Link_Port);
3204                         if ((!strcasecmp(Link_ServerName,servername)) && (!strcmp(Link_Pass,password)))
3205                         {
3206                                 // matching link at this end too, we're all done!
3207                                 // at this point we must begin key exchange and insert this
3208                                 // server into our 'active' table.
3209                                 for (int j = 0; j < 32; j++)
3210                                 {
3211                                         if (me[j] != NULL)
3212                                         {
3213                                                 for (int k = 0; k < me[j]->connectors.size(); k++)
3214                                                 {
3215                                                         if (!strcasecmp(me[j]->connectors[k].GetServerName().c_str(),tcp_host))
3216                                                         {
3217                                                                 char buffer[MAXBUF];
3218                                                                 log(DEBUG,"Found matching link block");
3219                                                                 me[j]->connectors[k].SetDescription(serverdesc);
3220                                                                 me[j]->connectors[k].SetServerName(servername);
3221                                                                 me[j]->connectors[k].SetState(STATE_SERVICES);
3222                                                                 sprintf(buffer,"X 0");
3223                                                                 serv->SendPacket(buffer,servername);
3224                                                                 sprintf(buffer,"s %s %s %lu :%s",ServerName,Link_SendPass,LinkPort,ServerDesc);
3225                                                                 serv->SendPacket(buffer,servername);
3226                                                                 DoSync(me[j],servername);
3227                                                                 snprintf(buffer,MAXBUF,"H %s",servername);
3228                                                                 NetSendToAllExcept(servername,buffer);
3229                                                                 WriteOpers("Non-Mesh server %s has joined the network",servername);
3230                                                                 log(DEBUG,"******** SENDING MY ROUTING TABLE! *******");
3231                                                                 NetSendMyRoutingTable();
3232                                                                 return;
3233                                                         }
3234                                                 }
3235                                         }
3236                                 }
3237                         }
3238                         else {
3239                                 log(DEBUG,"Server names '%s' and '%s' don't match",Link_ServerName,servername);
3240                         }
3241                 }
3242                 log(DEBUG,"No matching link block found");
3243                 char buffer[MAXBUF];
3244                 sprintf(buffer,"E :Access is denied (no matching link block)");
3245                 serv->SendPacket(buffer,tcp_host);
3246                 WriteOpers("CONNECT from %s denied, no matching link block",servername);
3247                 RemoveServer(tcp_host);
3248                 RemoveServer(servername);
3249                 return;
3250         }
3251         else
3252         if (token == 'E') {
3253                 char* error_message = finalparam+2;
3254                 WriteOpers("ERROR from %s: %s",tcp_host,error_message);
3255                 return;
3256         }
3257         else {
3258                 for (int j = 0; j < 32; j++)
3259                 {
3260                         if (me[j] != NULL)
3261                         {
3262                                 for (int x = 0; x < me[j]->connectors.size(); x++)
3263                                 {
3264                                         log(DEBUG,"Servers are: '%s' '%s'",tcp_host,me[j]->connectors[x].GetServerName().c_str());
3265                                         if (!strcasecmp(me[j]->connectors[x].GetServerName().c_str(),tcp_host))
3266                                         {
3267                                                 if ((me[j]->connectors[x].GetState() == STATE_CONNECTED) || (me[j]->connectors[x].GetState() == STATE_SERVICES))
3268                                                 {
3269                                                         // found a valid ircd_connector.
3270                                                         process_restricted_commands(token,params,me[j],serv,tcp_host,me[j]->connectors[x].GetServerIP(),me[j]->connectors[x].GetServerPort());
3271                                                         return;
3272                                                 }
3273                                         }
3274                                 }
3275                         }
3276                 }
3277
3278                 log(DEBUG,"Unrecognised token or unauthenticated host in datagram from %s: %c",tcp_host,token);
3279         }
3280 }
3281
3282 long duration(const char* str)
3283 {
3284         char n_field[MAXBUF];
3285         long total = 0;
3286         const char* str_end = str + strlen(str);
3287         n_field[0] = 0;
3288
3289         for (char* i = (char*)str; i < str_end; i++)
3290         {
3291                 // if we have digits, build up a string for the value in n_field,
3292                 // up to 10 digits in size.
3293                 if ((*i >= '0') && (*i <= '9'))
3294                 {
3295                         strlcat(n_field,i,10);
3296                 }
3297                 else
3298                 {
3299                         // we dont have a digit, check for numeric tokens
3300                         switch (tolower(*i))
3301                         {
3302                                 case 's':
3303                                         total += atoi(n_field);
3304                                 break;
3305
3306                                 case 'm':
3307                                         total += (atoi(n_field)*duration_m);
3308                                 break;
3309
3310                                 case 'h':
3311                                         total += (atoi(n_field)*duration_h);
3312                                 break;
3313
3314                                 case 'd':
3315                                         total += (atoi(n_field)*duration_d);
3316                                 break;
3317
3318                                 case 'w':
3319                                         total += (atoi(n_field)*duration_w);
3320                                 break;
3321
3322                                 case 'y':
3323                                         total += (atoi(n_field)*duration_y);
3324                                 break;
3325                         }
3326                         n_field[0] = 0;
3327                 }
3328         }
3329         // add trailing seconds
3330         total += atoi(n_field);
3331
3332         return total;
3333 }
3334
3335
3336 void handle_kline(char **parameters, int pcnt, userrec *user)
3337 {
3338         if (pcnt >= 3)
3339         {
3340                 add_kline(duration(parameters[1]),user->nick,parameters[2],parameters[0]);
3341                 if (!duration(parameters[1]))
3342                 {
3343                         WriteOpers("*** %s added permenant K-line for %s.",user->nick,parameters[0]);
3344                 }
3345                 else
3346                 {
3347                         WriteOpers("*** %s added timed K-line for %s, expires in %d seconds.",user->nick,parameters[0],duration(parameters[1]));
3348                 }
3349         }
3350         else
3351         {
3352                 if (del_kline(parameters[0]))
3353                 {
3354                         WriteOpers("*** %s Removed K-line on %s.",user->nick,parameters[0]);
3355                 }
3356                 else
3357                 {
3358                         WriteServ(user->fd,"NOTICE %s :*** K-Line %s not found in list, try /stats k.",user->nick,parameters[0]);
3359                 }
3360         }
3361         apply_lines();
3362 }
3363
3364 void handle_eline(char **parameters, int pcnt, userrec *user)
3365 {
3366         if (pcnt >= 3)
3367         {
3368                 add_eline(duration(parameters[1]),user->nick,parameters[2],parameters[0]);
3369                 if (!duration(parameters[1]))
3370                 {
3371                         WriteOpers("*** %s added permenant E-line for %s.",user->nick,parameters[0]);
3372                 }
3373                 else
3374                 {
3375                         WriteOpers("*** %s added timed E-line for %s, expires in %d seconds.",user->nick,parameters[0],duration(parameters[1]));
3376                 }
3377         }
3378         else
3379         {
3380                 if (del_eline(parameters[0]))
3381                 {
3382                         WriteOpers("*** %s Removed E-line on %s.",user->nick,parameters[0]);
3383                 }
3384                 else
3385                 {
3386                         WriteServ(user->fd,"NOTICE %s :*** E-Line %s not found in list, try /stats e.",user->nick,parameters[0]);
3387                 }
3388         }
3389         // no need to apply the lines for an eline
3390 }
3391
3392 void handle_gline(char **parameters, int pcnt, userrec *user)
3393 {
3394         char netdata[MAXBUF];
3395         if (pcnt >= 3)
3396         {
3397                 add_gline(duration(parameters[1]),user->nick,parameters[2],parameters[0]);
3398                 // # <mask> <who-set-it> <time-set> <duration> :<reason>
3399                 snprintf(netdata,MAXBUF,"# %s %s %lu %lu :%s",parameters[0],user->nick,(unsigned long)TIME,(unsigned long)duration(parameters[1]),parameters[2]);
3400                 NetSendToAll(netdata);
3401                 if (!duration(parameters[1]))
3402                 {
3403                         WriteOpers("*** %s added permenant G-line for %s.",user->nick,parameters[0]);
3404                 }
3405                 else
3406                 {
3407                         WriteOpers("*** %s added timed G-line for %s, expires in %d seconds.",user->nick,parameters[0],duration(parameters[1]));
3408                 }
3409         }
3410         else
3411         {
3412                 if (del_gline(parameters[0]))
3413                 {
3414                         // . <mask> <who-removed-it>
3415                         snprintf(netdata,MAXBUF,". %s %s",parameters[0],user->nick);
3416                         WriteOpers("*** %s Removed G-line on %s.",user->nick,parameters[0]);
3417                 }
3418                 else
3419                 {
3420                         WriteServ(user->fd,"NOTICE %s :*** G-Line %s not found in list, try /stats g.",user->nick,parameters[0]);
3421                 }
3422         }
3423         apply_lines();
3424 }
3425
3426 void handle_zline(char **parameters, int pcnt, userrec *user)
3427 {
3428         if (pcnt >= 3)
3429         {
3430                 add_zline(duration(parameters[1]),user->nick,parameters[2],parameters[0]);
3431                 if (!duration(parameters[1]))
3432                 {
3433                         WriteOpers("*** %s added permenant Z-line for %s.",user->nick,parameters[0]);
3434                 }
3435                 else
3436                 {
3437                         WriteOpers("*** %s added timed Z-line for %s, expires in %d seconds.",user->nick,parameters[0],duration(parameters[1]));
3438                 }
3439         }
3440         else
3441         {
3442                 if (del_zline(parameters[0]))
3443                 {
3444                         WriteOpers("*** %s Removed Z-line on %s.",user->nick,parameters[0]);
3445                 }
3446                 else
3447                 {
3448                         WriteServ(user->fd,"NOTICE %s :*** Z-Line %s not found in list, try /stats Z.",user->nick,parameters[0]);
3449                 }
3450         }
3451         apply_lines();
3452 }
3453
3454 void handle_qline(char **parameters, int pcnt, userrec *user)
3455 {
3456         if (pcnt >= 3)
3457         {
3458                 add_qline(duration(parameters[1]),user->nick,parameters[2],parameters[0]);
3459                 if (!duration(parameters[1]))
3460                 {
3461                         WriteOpers("*** %s added permenant Q-line for %s.",user->nick,parameters[0]);
3462                 }
3463                 else
3464                 {
3465                         WriteOpers("*** %s added timed Q-line for %s, expires in %d seconds.",user->nick,parameters[0],duration(parameters[1]));
3466                 }
3467         }
3468         else
3469         {
3470                 if (del_qline(parameters[0]))
3471                 {
3472                         WriteOpers("*** %s Removed Q-line on %s.",user->nick,parameters[0]);
3473                 }
3474                 else
3475                 {
3476                         WriteServ(user->fd,"NOTICE %s :*** Q-Line %s not found in list, try /stats k.",user->nick,parameters[0]);
3477                 }
3478         }
3479         apply_lines();
3480 }
3481
3482