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 such 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 such 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 such 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 such 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 such 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 such 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 such 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 such 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 such 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 such nick/channel",user->nick, parameters[0]);
 874                 }
 875         }
 876         else
 877         {
 878                 /* no such nick/channel */
 879                 WriteServ(user->fd,"401 %s %s :No such 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         delete user;
 944 }
 945
 946 void handle_who(char **parameters, int pcnt, userrec *user)
 947 {
 948         chanrec* Ptr = NULL;
 949         char tmp[10];
 950
 951         /* theres more to do here, but for now just close the socket */
 952         if (pcnt == 1)
 953         {
 954                 if ((!strcmp(parameters[0],"0")) || (!strcmp(parameters[0],"*")))
 955                 {
 956                         if (user->chans[0].channel)
 957                         {
 958                                 int n_list = 0;
 959                                 for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
 960                                 {
 961                                         Ptr = i->second->chans[0].channel;
 962                                         // suggested by phidjit and FCS
 963                                         if ((!common_channels(user,i->second)) && (isnick(i->second->nick)))
 964                                         {
 965                                                 // Bug Fix #29
 966                                                 strcpy(tmp, "");
 967                                                 if (strcmp(i->second->awaymsg, "")) {
 968                                                         strncat(tmp, "G", 9);
 969                                                 } else {
 970                                                         strncat(tmp, "H", 9);
 971                                                 }
 972                                                 if (strchr(i->second->modes,'o')) { strncat(tmp, "*", 9); }
 973                                                 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);
 974                                                 n_list++;
 975                                                 if (n_list > MaxWhoResults)
 976                                                         break;
 977                                         }
 978                                 }
 979                         }
 980                         if (Ptr)
 981                         {
 982                                 WriteServ(user->fd,"315 %s %s :End of /WHO list.",user->nick , parameters[0]);
 983                         }
 984                         else
 985                         {
 986                                 WriteServ(user->fd,"315 %s %s :End of /WHO list.",user->nick, parameters[0]);
 987                         }
 988                         return;
 989                 }
 990                 if (parameters[0][0] == '#')
 991                 {
 992                         Ptr = FindChan(parameters[0]);
 993                         if (Ptr)
 994                         {
 995                                 for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
 996                                 {
 997                                         if ((has_channel(i->second,Ptr)) && (isnick(i->second->nick)))
 998                                         {
 999                                                 // Fix Bug #29 - Part 2..
1000                                                 strcpy(tmp, "");
1001                                                 if (strcmp(i->second->awaymsg, "")) {
1002                                                         strncat(tmp, "G", 9);
1003                                                 } else {
1004                                                         strncat(tmp, "H", 9);
1005                                                 }
1006                                                 if (strchr(i->second->modes,'o')) { strncat(tmp, "*", 9); }
1007                                                 strcat(tmp, cmode(i->second, Ptr));
1008                                                 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);
1009                                         }
1010                                 }
1011                                 WriteServ(user->fd,"315 %s %s :End of /WHO list.",user->nick, parameters[0]);
1012                         }
1013                         else
1014                         {
1015                                 WriteServ(user->fd,"401 %s %s :No such nick/channel",user->nick, parameters[0]);
1016                         }
1017                 }
1018                 else
1019                 {
1020                         userrec* u = Find(parameters[0]);
1021                         if (u)
1022                         {
1023                                 // Bug Fix #29 -- Part 29..
1024                                 strcpy(tmp, "");
1025                                 if (strcmp(u->awaymsg, "")) {
1026                                         strncat(tmp, "G" ,9);
1027                                 } else {
1028                                         strncat(tmp, "H" ,9);
1029                                 }
1030                                 if (strchr(u->modes,'o')) { strncat(tmp, "*" ,9); }
1031                                 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);
1032                         }
1033                         WriteServ(user->fd,"315 %s %s :End of /WHO list.",user->nick, parameters[0]);
1034                 }
1035         }
1036         if (pcnt == 2)
1037         {
1038                 if ((!strcmp(parameters[0],"0")) || (!strcmp(parameters[0],"*")) && (!strcmp(parameters[1],"o")))
1039                 {
1040                         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
1041                         {
1042                                 if ((common_channels(user,i->second)) && (isnick(i->second->nick)))
1043                                 {
1044                                         if (strchr(i->second->modes,'o'))
1045                                         {
1046                                                 // If i were a rich man.. I wouldn't need to me making these bugfixes..
1047                                                 // But i'm a poor bastard with nothing better to do.
1048                                                 strcpy(tmp, "");
1049                                                 if (strcmp(i->second->awaymsg, "")) {
1050                                                         strncat(tmp, "G" ,9);
1051                                                 } else {
1052                                                         strncat(tmp, "H" ,9);
1053                                                 }
1054
1055                                                 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);
1056                                         }
1057                                 }
1058                         }
1059                         WriteServ(user->fd,"315 %s %s :End of /WHO list.",user->nick, parameters[0]);
1060                         return;
1061                 }
1062         }
1063 }
1064
1065 void handle_wallops(char **parameters, int pcnt, userrec *user)
1066 {
1067         WriteWallOps(user,false,"%s",parameters[0]);
1068 }
1069
1070 void handle_list(char **parameters, int pcnt, userrec *user)
1071 {
1072         WriteServ(user->fd,"321 %s Channel :Users Name",user->nick);
1073         for (chan_hash::const_iterator i = chanlist.begin(); i != chanlist.end(); i++)
1074         {
1075                 if ((!i->second->c_private) && (!i->second->secret))
1076                 {
1077                         WriteServ(user->fd,"322 %s %s %d :[+%s] %s",user->nick,i->second->name,usercount_i(i->second),chanmodes(i->second),i->second->topic);
1078                 }
1079         }
1080         WriteServ(user->fd,"323 %s :End of channel list.",user->nick);
1081 }
1082
1083
1084 void handle_rehash(char **parameters, int pcnt, userrec *user)
1085 {
1086         WriteServ(user->fd,"382 %s %s :Rehashing",user->nick,CleanFilename(CONFIG_FILE));
1087         ReadConfig(false,user);
1088         FOREACH_MOD OnRehash();
1089         WriteOpers("%s is rehashing config file %s",user->nick,CleanFilename(CONFIG_FILE));
1090 }
1091
1092 void handle_lusers(char **parameters, int pcnt, userrec *user)
1093 {
1094         WriteServ(user->fd,"251 %s :There are %d users and %d invisible on %d servers",user->nick,usercnt()-usercount_invisible(),usercount_invisible(),servercount());
1095         WriteServ(user->fd,"252 %s %d :operator(s) online",user->nick,usercount_opers());
1096         WriteServ(user->fd,"253 %s %d :unknown connections",user->nick,usercount_unknown());
1097         WriteServ(user->fd,"254 %s %d :channels formed",user->nick,chancount());
1098         WriteServ(user->fd,"254 %s :I have %d clients and %d servers",user->nick,local_count(),count_servs());
1099 }
1100
1101 void handle_admin(char **parameters, int pcnt, userrec *user)
1102 {
1103         WriteServ(user->fd,"256 %s :Administrative info for %s",user->nick,ServerName);
1104         WriteServ(user->fd,"257 %s :Name     - %s",user->nick,AdminName);
1105         WriteServ(user->fd,"258 %s :Nickname - %s",user->nick,AdminNick);
1106         WriteServ(user->fd,"258 %s :E-Mail   - %s",user->nick,AdminEmail);
1107 }
1108
1109 void handle_ping(char **parameters, int pcnt, userrec *user)
1110 {
1111         WriteServ(user->fd,"PONG %s :%s",ServerName,parameters[0]);
1112 }
1113
1114 void handle_pong(char **parameters, int pcnt, userrec *user)
1115 {
1116         // set the user as alive so they survive to next ping
1117         user->lastping = 1;
1118 }
1119
1120 void handle_motd(char **parameters, int pcnt, userrec *user)
1121 {
1122         ShowMOTD(user);
1123 }
1124
1125 void handle_rules(char **parameters, int pcnt, userrec *user)
1126 {
1127         ShowRULES(user);
1128 }
1129
1130 void handle_user(char **parameters, int pcnt, userrec *user)
1131 {
1132         if (user->registered < 3)
1133         {
1134                 if (isident(parameters[0]) == 0) {
1135                         // This kinda Sucks, According to the RFC thou, its either this,
1136                         // or "You have already registered" :p -- Craig
1137                         WriteServ(user->fd,"461 %s USER :Not enough parameters",user->nick);
1138                 }
1139                 else {
1140                         strcpy(user->ident,"~"); /* we arent checking ident... but these days why bother anyway? */
1141                         strlcat(user->ident,parameters[0],IDENTMAX);
1142                         strlcpy(user->fullname,parameters[3],128);
1143                         user->registered = (user->registered | 1);
1144                 }
1145         }
1146         else
1147         {
1148                 WriteServ(user->fd,"462 %s :You may not reregister",user->nick);
1149                 return;
1150         }
1151         /* parameters 2 and 3 are local and remote hosts, ignored when sent by client connection */
1152         if (user->registered == 3)
1153         {
1154                 /* user is registered now, bit 0 = USER command, bit 1 = sent a NICK command */
1155                 FOREACH_MOD OnUserRegister(user);
1156                 ConnectUser(user);
1157         }
1158 }
1159
1160 void handle_userhost(char **parameters, int pcnt, userrec *user)
1161 {
1162         char Return[MAXBUF],junk[MAXBUF];
1163         snprintf(Return,MAXBUF,"302 %s :",user->nick);
1164         for (int i = 0; i < pcnt; i++)
1165         {
1166                 userrec *u = Find(parameters[i]);
1167                 if (u)
1168                 {
1169                         if (strchr(u->modes,'o'))
1170                         {
1171                                 snprintf(junk,MAXBUF,"%s*=+%s@%s ",u->nick,u->ident,u->host);
1172                                 strlcat(Return,junk,MAXBUF);
1173                         }
1174                         else
1175                         {
1176                                 snprintf(junk,MAXBUF,"%s=+%s@%s ",u->nick,u->ident,u->host);
1177                                 strlcat(Return,junk,MAXBUF);
1178                         }
1179                 }
1180         }
1181         WriteServ(user->fd,Return);
1182 }
1183
1184
1185 void handle_ison(char **parameters, int pcnt, userrec *user)
1186 {
1187         char Return[MAXBUF];
1188         snprintf(Return,MAXBUF,"303 %s :",user->nick);
1189         for (int i = 0; i < pcnt; i++)
1190         {
1191                 userrec *u = Find(parameters[i]);
1192                 if (u)
1193                 {
1194                         strlcat(Return,u->nick,MAXBUF);
1195                         strlcat(Return," ",MAXBUF);
1196                 }
1197         }
1198         WriteServ(user->fd,Return);
1199 }
1200
1201
1202 void handle_away(char **parameters, int pcnt, userrec *user)
1203 {
1204         if (pcnt)
1205         {
1206                 strlcpy(user->awaymsg,parameters[0],512);
1207                 WriteServ(user->fd,"306 %s :You have been marked as being away",user->nick);
1208         }
1209         else
1210         {
1211                 strlcpy(user->awaymsg,"",512);
1212                 WriteServ(user->fd,"305 %s :You are no longer marked as being away",user->nick);
1213         }
1214 }
1215
1216 void handle_whowas(char **parameters, int pcnt, userrec* user)
1217 {
1218         user_hash::iterator i = whowas.find(parameters[0]);
1219
1220         if (i == whowas.end())
1221         {
1222                 WriteServ(user->fd,"406 %s %s :There was no such nickname",user->nick,parameters[0]);
1223                 WriteServ(user->fd,"369 %s %s :End of WHOWAS",user->nick,parameters[0]);
1224         }
1225         else
1226         {
1227                 time_t rawtime = i->second->signon;
1228                 tm *timeinfo;
1229                 char b[MAXBUF];
1230
1231                 timeinfo = localtime(&rawtime);
1232                 strlcpy(b,asctime(timeinfo),MAXBUF);
1233                 b[strlen(b)-1] = '\0';
1234
1235                 WriteServ(user->fd,"314 %s %s %s %s * :%s",user->nick,i->second->nick,i->second->ident,i->second->dhost,i->second->fullname);
1236                 WriteServ(user->fd,"312 %s %s %s :%s",user->nick,i->second->nick,i->second->server,b);
1237                 WriteServ(user->fd,"369 %s %s :End of WHOWAS",user->nick,parameters[0]);
1238         }
1239
1240 }
1241
1242 void handle_trace(char **parameters, int pcnt, userrec *user)
1243 {
1244         for (user_hash::iterator i = clientlist.begin(); i != clientlist.end(); i++)
1245         {
1246                 if (i->second)
1247                 {
1248                         if (isnick(i->second->nick))
1249                         {
1250                                 if (strchr(i->second->modes,'o'))
1251                                 {
1252                                         WriteServ(user->fd,"205 %s :Oper 0 %s",user->nick,i->second->nick);
1253                                 }
1254                                 else
1255                                 {
1256                                         WriteServ(user->fd,"204 %s :User 0 %s",user->nick,i->second->nick);
1257                                 }
1258                         }
1259                         else
1260                         {
1261                                 WriteServ(user->fd,"203 %s :???? 0 [%s]",user->nick,i->second->host);
1262                         }
1263                 }
1264         }
1265 }
1266
1267 void handle_modules(char **parameters, int pcnt, userrec *user)
1268 {
1269         for (int i = 0; i < module_names.size(); i++)
1270         {
1271                 Version V = modules[i]->GetVersion();
1272                 char modulename[MAXBUF];
1273                 char flagstate[MAXBUF];
1274                 strcpy(flagstate,"");
1275                 if (V.Flags & VF_STATIC)
1276                         strlcat(flagstate,", static",MAXBUF);
1277                 if (V.Flags & VF_VENDOR)
1278                         strlcat(flagstate,", vendor",MAXBUF);
1279                 if (V.Flags & VF_COMMON)
1280                         strlcat(flagstate,", common",MAXBUF);
1281                 if (V.Flags & VF_SERVICEPROVIDER)
1282                         strlcat(flagstate,", service provider",MAXBUF);
1283                 if (!flagstate[0])
1284                         strcpy(flagstate,"  <no flags>");
1285                 strlcpy(modulename,module_names[i].c_str(),256);
1286                 if (strchr(user->modes,'o'))
1287                 {
1288                         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);
1289                 }
1290                 else
1291                 {
1292                         WriteServ(user->fd,"900 %s :%s",user->nick,CleanFilename(modulename));
1293                 }
1294         }
1295 }
1296
1297 void handle_stats(char **parameters, int pcnt, userrec *user)
1298 {
1299         char Link_ServerName[MAXBUF],Link_IPAddr[MAXBUF],Link_Port[MAXBUF];
1300         if (pcnt != 1)
1301         {
1302                 return;
1303         }
1304         if (strlen(parameters[0])>1)
1305         {
1306                 /* make the stats query 1 character long */
1307                 parameters[0][1] = '\0';
1308         }
1309
1310
1311         FOREACH_MOD OnStats(*parameters[0]);
1312
1313         if (*parameters[0] == 'c')
1314         {
1315                 for (int i = 0; i < ConfValueEnum("link",&config_f); i++)
1316                 {
1317                         ConfValue("link","name",i,Link_ServerName,&config_f);
1318                         ConfValue("link","ipaddr",i,Link_IPAddr,&config_f);
1319                         ConfValue("link","port",i,Link_Port,&config_f);
1320                         WriteServ(user->fd,"213 %s C *@%s * %s %s 0 M",user->nick,Link_IPAddr,Link_ServerName,Link_Port);
1321                         WriteServ(user->fd,"244 %s H * * %s",user->nick,Link_ServerName);
1322                 }
1323         }
1324
1325         if (*parameters[0] == 'i')
1326         {
1327                 int idx = 0;
1328                 for (ClassVector::iterator i = Classes.begin(); i != Classes.end(); i++)
1329                 {
1330                         WriteServ(user->fd,"215 %s I * * * %d %d %s *",user->nick,MAXCLIENTS,idx,ServerName);
1331                         idx++;
1332                 }
1333         }
1334
1335         if (*parameters[0] == 'y')
1336         {
1337                 int idx = 0;
1338                 for (ClassVector::iterator i = Classes.begin(); i != Classes.end(); i++)
1339                 {
1340                         WriteServ(user->fd,"218 %s Y %d %d 0 %d %d",user->nick,idx,120,i->flood,i->registration_timeout);
1341                         idx++;
1342                 }
1343         }
1344
1345         if (*parameters[0] == 'U')
1346         {
1347                 for (int i = 0; i < ConfValueEnum("uline",&config_f); i++)
1348                 {
1349                         ConfValue("uline","server",i,Link_ServerName,&config_f);
1350                         WriteServ(user->fd,"248 %s U %s",user->nick,Link_ServerName);
1351                 }
1352         }
1353
1354         if (*parameters[0] == 'P')
1355         {
1356                 int idx = 0;
1357                 for (user_hash::iterator i = clientlist.begin(); i != clientlist.end(); i++)
1358                 {
1359                         if (strchr(i->second->modes,'o'))
1360                         {
1361                                 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));
1362                                 idx++;
1363                         }
1364                 }
1365                 WriteServ(user->fd,"249 %s :%d OPER(s)",user->nick,idx);
1366         //249 [Brain] :bwoadway-monitor (~wgmon@204.152.186.58) Idle: 18
1367         }
1368
1369         if (*parameters[0] == 'k')
1370         {
1371                 stats_k(user);
1372         }
1373
1374         if (*parameters[0] == 'g')
1375         {
1376                 stats_g(user);
1377         }
1378
1379         if (*parameters[0] == 'q')
1380         {
1381                 stats_q(user);
1382         }
1383
1384         if (*parameters[0] == 'Z')
1385         {
1386                 stats_z(user);
1387         }
1388
1389         if (*parameters[0] == 'e')
1390         {
1391                 stats_e(user);
1392         }
1393
1394         /* stats m (list number of times each command has been used, plus bytecount) */
1395         if (*parameters[0] == 'm')
1396         {
1397                 for (int i = 0; i < cmdlist.size(); i++)
1398                 {
1399                         if (cmdlist[i].handler_function)
1400                         {
1401                                 if (cmdlist[i].use_count)
1402                                 {
1403                                         /* RPL_STATSCOMMANDS */
1404                                         WriteServ(user->fd,"212 %s %s %d %d",user->nick,cmdlist[i].command,cmdlist[i].use_count,cmdlist[i].total_bytes);
1405                                 }
1406                         }
1407                 }
1408
1409         }
1410
1411         /* stats z (debug and memory info) */
1412         if (*parameters[0] == 'z')
1413         {
1414                 WriteServ(user->fd,"249 %s :Users(HASH_MAP) %d (%d bytes, %d buckets)",user->nick,clientlist.size(),clientlist.size()*sizeof(userrec),clientlist.bucket_count());
1415                 WriteServ(user->fd,"249 %s :Channels(HASH_MAP) %d (%d bytes, %d buckets)",user->nick,chanlist.size(),chanlist.size()*sizeof(chanrec),chanlist.bucket_count());
1416                 WriteServ(user->fd,"249 %s :Commands(VECTOR) %d (%d bytes)",user->nick,cmdlist.size(),cmdlist.size()*sizeof(command_t));
1417                 WriteServ(user->fd,"249 %s :MOTD(VECTOR) %d, RULES(VECTOR) %d",user->nick,MOTD.size(),RULES.size());
1418                 WriteServ(user->fd,"249 %s :address_cache(HASH_MAP) %d (%d buckets)",user->nick,IP.size(),IP.bucket_count());
1419                 WriteServ(user->fd,"249 %s :Modules(VECTOR) %d (%d)",user->nick,modules.size(),modules.size()*sizeof(Module));
1420                 WriteServ(user->fd,"249 %s :ClassFactories(VECTOR) %d (%d)",user->nick,factory.size(),factory.size()*sizeof(ircd_module));
1421                 WriteServ(user->fd,"249 %s :Ports(STATIC_ARRAY) %d",user->nick,boundPortCount);
1422         }
1423
1424         /* stats o */
1425         if (*parameters[0] == 'o')
1426         {
1427                 for (int i = 0; i < ConfValueEnum("oper",&config_f); i++)
1428                 {
1429                         char LoginName[MAXBUF];
1430                         char HostName[MAXBUF];
1431                         char OperType[MAXBUF];
1432                         ConfValue("oper","name",i,LoginName,&config_f);
1433                         ConfValue("oper","host",i,HostName,&config_f);
1434                         ConfValue("oper","type",i,OperType,&config_f);
1435                         WriteServ(user->fd,"243 %s O %s * %s %s 0",user->nick,HostName,LoginName,OperType);
1436                 }
1437         }
1438
1439         /* stats l (show user I/O stats) */
1440         if (*parameters[0] == 'l')
1441         {
1442                 WriteServ(user->fd,"211 %s :server:port nick bytes_in cmds_in bytes_out cmds_out",user->nick);
1443                 for (user_hash::iterator i = clientlist.begin(); i != clientlist.end(); i++)
1444                 {
1445                         if (isnick(i->second->nick))
1446                         {
1447                                 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);
1448                         }
1449                         else
1450                         {
1451                                 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);
1452                         }
1453
1454                 }
1455         }
1456
1457         /* stats u (show server uptime) */
1458         if (*parameters[0] == 'u')
1459         {
1460                 time_t current_time = 0;
1461                 current_time = TIME;
1462                 time_t server_uptime = current_time - startup_time;
1463                 struct tm* stime;
1464                 stime = gmtime(&server_uptime);
1465                 /* i dont know who the hell would have an ircd running for over a year nonstop, but
1466                  * Craig suggested this, and it seemed a good idea so in it went */
1467                 if (stime->tm_year > 70)
1468                 {
1469                         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);
1470                 }
1471                 else
1472                 {
1473                         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);
1474                 }
1475         }
1476
1477         WriteServ(user->fd,"219 %s %s :End of /STATS report",user->nick,parameters[0]);
1478         WriteOpers("*** Notice: Stats '%s' requested by %s (%s@%s)",parameters[0],user->nick,user->ident,user->host);
1479
1480 }
1481
1482 void handle_connect(char **parameters, int pcnt, userrec *user)
1483 {
1484         char Link_ServerName[1024];
1485         char Link_IPAddr[1024];
1486         char Link_Port[1024];
1487         char Link_Pass[1024];
1488         int LinkPort;
1489         bool found = false;
1490
1491         for (int i = 0; i < ConfValueEnum("link",&config_f); i++)
1492         {
1493                 if (!found)
1494                 {
1495                         ConfValue("link","name",i,Link_ServerName,&config_f);
1496                         ConfValue("link","ipaddr",i,Link_IPAddr,&config_f);
1497                         ConfValue("link","port",i,Link_Port,&config_f);
1498                         ConfValue("link","sendpass",i,Link_Pass,&config_f);
1499                         log(DEBUG,"(%d) Comparing against name='%s', ipaddr='%s', port='%s', recvpass='%s'",i,Link_ServerName,Link_IPAddr,Link_Port,Link_Pass);
1500                         LinkPort = atoi(Link_Port);
1501                         if (match(Link_ServerName,parameters[0])) {
1502                                 found = true;
1503                                 break;
1504                         }
1505                 }
1506         }
1507
1508         if (!found) {
1509                 WriteServ(user->fd,"NOTICE %s :*** Failed to connect to %s: No servers matching this pattern are configured for linking.",user->nick,parameters[0]);
1510                 return;
1511         }
1512
1513         // TODO: Perform a check here to stop a server being linked twice!
1514
1515         WriteServ(user->fd,"NOTICE %s :*** Connecting to %s (%s) port %s...",user->nick,Link_ServerName,Link_IPAddr,Link_Port);
1516
1517         if (me[defaultRoute])
1518         {
1519                 me[defaultRoute]->BeginLink(Link_IPAddr,LinkPort,Link_Pass,Link_ServerName,me[defaultRoute]->port);
1520                 return;
1521         }
1522         else
1523         {
1524                 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);
1525         }
1526 }
1527
1528 void handle_squit(char **parameters, int pcnt, userrec *user)
1529 {
1530         // send out an squit across the mesh and then clear the server list (for local squit)
1531         if (!pcnt)
1532         {
1533                 WriteOpers("SQUIT command issued by %s",user->nick);
1534                 char buffer[MAXBUF];
1535                 snprintf(buffer,MAXBUF,"& %s",ServerName);
1536                 NetSendToAll(buffer);
1537                 DoSplitEveryone();
1538         }
1539         else
1540         {
1541                 if (!strcasecmp(ServerName,parameters[0]))
1542                 {
1543                         WriteServ(user->fd,"NOTICE %s :*** To take the local server out of the mesh, just use /SQUIT with no parameters instead.",user->nick);
1544                         return;
1545                 }
1546                 bool have_this_server = false;
1547                 for (int j = 0; j < 32; j++)
1548                 {
1549                         if (me[j] != NULL)
1550                         {
1551                                 for (int x = 0; x < me[j]->connectors.size(); x++)
1552                                 {
1553                                         if (!strcasecmp(me[j]->connectors[x].GetServerName().c_str(),parameters[0]))
1554                                         {
1555                                                 // found a valid ircd_connector.
1556                                                 have_this_server = true;
1557                                                 return;
1558                                         }
1559                                 }
1560                         }
1561                 }
1562                 if (have_this_server)
1563                 {
1564                         WriteOpers("SQUIT command issued by %s to remove %s from the mesh",user->nick,parameters[0]);
1565                         char buffer[MAXBUF];
1566                         snprintf(buffer,MAXBUF,"& %s",parameters[0]);
1567                         NetSendToAll(buffer);
1568                         DoSplit(parameters[0]);
1569                 }
1570                 else
1571                 {
1572                         WriteServ(user->fd,"NOTICE %s :*** No such server exists in the mesh.",user->nick);
1573                 }
1574         }
1575 }
1576
1577 void handle_links(char **parameters, int pcnt, userrec *user)
1578 {
1579         WriteServ(user->fd,"364 %s %s %s :0 %s",user->nick,ServerName,ServerName,ServerDesc);
1580         for (int j = 0; j < 32; j++)
1581         {
1582                 if (me[j] != NULL)
1583                 {
1584                         for (int k = 0; k < me[j]->connectors.size(); k++)
1585                         {
1586                                 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());
1587                         }
1588                 }
1589         }
1590         WriteServ(user->fd,"365 %s * :End of /LINKS list.",user->nick);
1591 }
1592
1593 void handle_map(char **parameters, int pcnt, userrec *user)
1594 {
1595         char line[MAXBUF];
1596         snprintf(line,MAXBUF,"006 %s :%s",user->nick,ServerName);
1597         while (strlen(line) < 50)
1598                 strcat(line," ");
1599         WriteServ(user->fd,"%s%d (%.2f%%)",line,local_count(),(float)(((float)local_count()/(float)registered_usercount())*100));
1600         for (int j = 0; j < 32; j++)
1601         {
1602                 if (me[j] != NULL)
1603                 {
1604                         for (int k = 0; k < me[j]->connectors.size(); k++)
1605                         {
1606                                 snprintf(line,MAXBUF,"006 %s :%c-%s",user->nick,islast(me[j]->connectors[k].GetServerName().c_str()),me[j]->connectors[k].GetServerName().c_str());
1607                                 while (strlen(line) < 50)
1608                                         strcat(line," ");
1609                                 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));
1610                         }
1611                 }
1612         }
1613         WriteServ(user->fd,"007 %s :End of /MAP",user->nick);
1614 }
1615
1616 bool is_uline(const char* server)
1617 {
1618         char ServName[MAXBUF];
1619         for (int i = 0; i < ConfValueEnum("uline",&config_f); i++)
1620         {
1621                 ConfValue("uline","server",i,ServName,&config_f);
1622                 if (!strcasecmp(server,ServName))
1623                 {
1624                         return true;
1625                 }
1626         }
1627         return false;
1628 }
1629 int operstrcmp(char* data,char* input)
1630 {
1631         int MOD_RESULT = 0;
1632         FOREACH_RESULT(OnOperCompare(data,input))
1633         log(DEBUG,"operstrcmp: %d",MOD_RESULT);
1634         if (MOD_RESULT == 1)
1635                 return 0;
1636         if (MOD_RESULT == -1)
1637                 return 1;
1638         log(DEBUG,"strcmp fallback: '%s' '%s' %d",data,input,strcmp(data,input));
1639         return strcmp(data,input);
1640 }
1641
1642 void handle_oper(char **parameters, int pcnt, userrec *user)
1643 {
1644         char LoginName[MAXBUF];
1645         char Password[MAXBUF];
1646         char OperType[MAXBUF];
1647         char TypeName[MAXBUF];
1648         char HostName[MAXBUF];
1649         char TheHost[MAXBUF];
1650         int j;
1651         bool found = false;
1652         bool fail2 = false;
1653         char global[MAXBUF];
1654
1655         snprintf(TheHost,MAXBUF,"%s@%s",user->ident,user->host);
1656
1657         for (int i = 0; i < ConfValueEnum("oper",&config_f); i++)
1658         {
1659                 ConfValue("oper","name",i,LoginName,&config_f);
1660                 ConfValue("oper","password",i,Password,&config_f);
1661                 ConfValue("oper","type",i,OperType,&config_f);
1662                 ConfValue("oper","host",i,HostName,&config_f);
1663                 if ((!strcmp(LoginName,parameters[0])) && (!operstrcmp(Password,parameters[1])) && (match(TheHost,HostName)))
1664                 {
1665                         fail2 = true;
1666                         for (j =0; j < ConfValueEnum("type",&config_f); j++)
1667                         {
1668                                 ConfValue("type","name",j,TypeName,&config_f);
1669
1670                                 if (!strcmp(TypeName,OperType))
1671                                 {
1672                                         /* found this oper's opertype */
1673                                         snprintf(global,MAXBUF,"| %s %s",user->nick,TypeName);
1674                                         NetSendToAll(global);
1675                                         ConfValue("type","host",j,HostName,&config_f);
1676                                         ChangeDisplayedHost(user,HostName);
1677                                         strlcpy(user->oper,TypeName,NICKMAX);
1678                                         found = true;
1679                                         fail2 = false;
1680                                         break;
1681                                 }
1682                         }
1683                 }
1684                 if (found)
1685                         break;
1686         }
1687         if (found)
1688         {
1689                 /* correct oper credentials */
1690                 WriteOpers("*** %s (%s@%s) is now an IRC operator of type %s",user->nick,user->ident,user->host,OperType);
1691                 WriteServ(user->fd,"381 %s :You are now an IRC operator of type %s",user->nick,OperType);
1692                 if (!strchr(user->modes,'o'))
1693                 {
1694                         strcat(user->modes,"o");
1695                         WriteServ(user->fd,"MODE %s :+o",user->nick);
1696                         snprintf(global,MAXBUF,"M %s +o",user->nick);
1697                         NetSendToAll(global);
1698                         FOREACH_MOD OnOper(user);
1699                         log(DEFAULT,"OPER: %s!%s@%s opered as type: %s",user->nick,user->ident,user->host,OperType);
1700                         AddOper(user);
1701                 }
1702         }
1703         else
1704         {
1705                 if (!fail2)
1706                 {
1707                         WriteServ(user->fd,"491 %s :Invalid oper credentials",user->nick);
1708                         WriteOpers("*** WARNING! Failed oper attempt by %s!%s@%s!",user->nick,user->ident,user->host);
1709                         log(DEFAULT,"OPER: Failed oper attempt by %s!%s@%s: user, host or password did not match.",user->nick,user->ident,user->host);
1710                 }
1711                 else
1712                 {
1713                         WriteServ(user->fd,"491 %s :Your oper block does not have a valid opertype associated with it",user->nick);
1714                         WriteOpers("*** CONFIGURATION ERROR! Oper block mismatch for OperType %s",OperType);
1715                         log(DEFAULT,"OPER: Failed oper attempt by %s!%s@%s: credentials valid, but oper type nonexistent.",user->nick,user->ident,user->host);
1716                 }
1717         }
1718         return;
1719 }
1720
1721 void handle_nick(char **parameters, int pcnt, userrec *user)
1722 {
1723         if (pcnt < 1)
1724         {
1725                 log(DEBUG,"not enough params for handle_nick");
1726                 return;
1727         }
1728         if (!parameters[0])
1729         {
1730                 log(DEBUG,"invalid parameter passed to handle_nick");
1731                 return;
1732         }
1733         if (!parameters[0][0])
1734         {
1735                 log(DEBUG,"zero length new nick passed to handle_nick");
1736                 return;
1737         }
1738         if (!user)
1739         {
1740                 log(DEBUG,"invalid user passed to handle_nick");
1741                 return;
1742         }
1743         if (!user->nick)
1744         {
1745                 log(DEBUG,"invalid old nick passed to handle_nick");
1746                 return;
1747         }
1748         if (!strcasecmp(user->nick,parameters[0]))
1749         {
1750                 log(DEBUG,"old nick is new nick, skipping");
1751                 return;
1752         }
1753         else
1754         {
1755                 if (strlen(parameters[0]) > 1)
1756                 {
1757                         if (parameters[0][0] == ':')
1758                         {
1759                                 *parameters[0]++;
1760                         }
1761                 }
1762                 if (matches_qline(parameters[0]))
1763                 {
1764                         WriteOpers("*** Q-Lined nickname %s from %s!%s@%s: %s",parameters[0],user->nick,user->ident,user->host,matches_qline(parameters[0]));
1765                         WriteServ(user->fd,"432 %s %s :Invalid nickname: %s",user->nick,parameters[0],matches_qline(parameters[0]));
1766                         return;
1767                 }
1768                 if ((Find(parameters[0])) && (Find(parameters[0]) != user))
1769                 {
1770                         WriteServ(user->fd,"433 %s %s :Nickname is already in use.",user->nick,parameters[0]);
1771                         return;
1772                 }
1773         }
1774         if (isnick(parameters[0]) == 0)
1775         {
1776                 WriteServ(user->fd,"432 %s %s :Erroneous Nickname",user->nick,parameters[0]);
1777                 return;
1778         }
1779
1780         if (user->registered == 7)
1781         {
1782                 int MOD_RESULT = 0;
1783                 FOREACH_RESULT(OnUserPreNick(user,parameters[0]));
1784                 if (MOD_RESULT) {
1785                         // if a module returns true, the nick change is silently forbidden.
1786                         return;
1787                 }
1788
1789                 WriteCommon(user,"NICK %s",parameters[0]);
1790
1791                 // N token must go to ALL servers!!!
1792                 char buffer[MAXBUF];
1793                 snprintf(buffer,MAXBUF,"n %s %s",user->nick,parameters[0]);
1794                 NetSendToAll(buffer);
1795         }
1796
1797         char oldnick[NICKMAX];
1798         strlcpy(oldnick,user->nick,NICKMAX);
1799
1800         /* change the nick of the user in the users_hash */
1801         user = ReHashNick(user->nick, parameters[0]);
1802         /* actually change the nick within the record */
1803         if (!user) return;
1804         if (!user->nick) return;
1805
1806         strlcpy(user->nick, parameters[0],NICKMAX);
1807
1808         log(DEBUG,"new nick set: %s",user->nick);
1809
1810         if (user->registered < 3)
1811         {
1812                 user->registered = (user->registered | 2);
1813                 // dont attempt to look up the dns until they pick a nick... because otherwise their pointer WILL change
1814                 // and unless we're lucky we'll get a duff one later on.
1815                 user->dns_done = (!lookup_dns(user->nick));
1816                 if (user->dns_done)
1817                         log(DEBUG,"Aborting dns lookup of %s because dns server experienced a failure.",user->nick);
1818         }
1819         if (user->registered == 3)
1820         {
1821                 /* user is registered now, bit 0 = USER command, bit 1 = sent a NICK command */
1822                 FOREACH_MOD OnUserRegister(user);
1823                 ConnectUser(user);
1824         }
1825         if (user->registered == 7)
1826         {
1827                 FOREACH_MOD OnUserPostNick(user,oldnick);
1828         }
1829 }
1830
1831
1832
1833 void handle_V(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
1834 {
1835         char* src = strtok(params," ");
1836         char* dest = strtok(NULL," :");
1837         char* text = strtok(NULL,"\r\n");
1838         text++;
1839
1840         userrec* user = Find(src);
1841         if (user)
1842         {
1843                 userrec* dst = Find(dest);
1844
1845                 if (dst)
1846                 {
1847                         WriteTo(user, dst, "NOTICE %s :%s", dst->nick, text);
1848                 }
1849                 else
1850                 {
1851                         chanrec* d = FindChan(dest);
1852                         if (d)
1853                         {
1854                                 ChanExceptSender(d, user, "NOTICE %s :%s", d->name, text);
1855                         }
1856                 }
1857         }
1858
1859 }
1860
1861
1862 void handle_P(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
1863 {
1864         char* src = strtok(params," ");
1865         char* dest = strtok(NULL," :");
1866         char* text = strtok(NULL,"\r\n");
1867         text++;
1868
1869         userrec* user = Find(src);
1870         if (user)
1871         {
1872                 userrec* dst = Find(dest);
1873
1874                 if (dst)
1875                 {
1876                         WriteTo(user, dst, "PRIVMSG %s :%s", dst->nick, text);
1877                 }
1878                 else
1879                 {
1880                         chanrec* d = FindChan(dest);
1881                         if (d)
1882                         {
1883                                 ChanExceptSender(d, user, "PRIVMSG %s :%s", d->name, text);
1884                         }
1885                 }
1886         }
1887
1888 }
1889
1890 void handle_i(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
1891 {
1892         char* nick = strtok(params," ");
1893         char* from = strtok(NULL," ");
1894         char* channel = strtok(NULL," ");
1895         userrec* u = Find(nick);
1896         userrec* user = Find(from);
1897         chanrec* c = FindChan(channel);
1898         if ((c) && (u) && (user))
1899         {
1900                 u->InviteTo(c->name);
1901                 WriteFrom(u->fd,user,"INVITE %s :%s",u->nick,c->name);
1902         }
1903 }
1904
1905 void handle_t(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
1906 {
1907         char* setby = strtok(params," ");
1908         char* channel = strtok(NULL," :");
1909         char* topic = strtok(NULL,"\r\n");
1910         topic++;
1911         userrec* u = Find(setby);
1912         chanrec* c = FindChan(channel);
1913         if ((c) && (u))
1914         {
1915                 WriteChannelLocal(c,u,"TOPIC %s :%s",c->name,topic);
1916                 strlcpy(c->topic,topic,MAXTOPIC);
1917                 strlcpy(c->setby,u->nick,NICKMAX);
1918                 c->topicset = TIME;
1919         }
1920 }
1921
1922
1923 void handle_T(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
1924 {
1925         char* tm = strtok(params," ");
1926         char* setby = strtok(NULL," ");
1927         char* channel = strtok(NULL," :");
1928         char* topic = strtok(NULL,"\r\n");
1929         topic++;
1930         time_t TS = atoi(tm);
1931         chanrec* c = FindChan(channel);
1932         if (c)
1933         {
1934                 // in the case of topics and TS, the *NEWER*
1935                 if (TS <= c->topicset)
1936                 {
1937                         WriteChannelLocal(c,NULL,"TOPIC %s :%s",c->name,topic);
1938                         strlcpy(c->topic,topic,MAXTOPIC);
1939                         strlcpy(c->setby,setby,NICKMAX);
1940                 }
1941         }
1942 }
1943
1944 void handle_M(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
1945 {
1946         char* pars[128];
1947         char original[MAXBUF],target[MAXBUF];
1948         strlcpy(original,params,MAXBUF);
1949         int index = 0;
1950         char* parameter = strtok(params," ");
1951         strlcpy(target,parameter,MAXBUF);
1952         while (parameter)
1953         {
1954                 if (parameter[0] == ':')
1955                         parameter++;
1956                 pars[index++] = parameter;
1957                 parameter = strtok(NULL," ");
1958         }
1959         log(DEBUG,"*** MODE: %s %s",pars[0],pars[1]);
1960         merge_mode(pars,index);
1961         if (FindChan(target))
1962         {
1963                 WriteChannelLocal(FindChan(target), NULL, "MODE %s",original);
1964         }
1965         if (Find(target))
1966         {
1967                 Write(Find(target)->fd,":%s MODE %s",ServerName,original);
1968         }
1969 }
1970
1971 // m is modes set by users only (not servers) valid targets are channels or users.
1972
1973 void handle_m(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
1974 {
1975         // m blah #chatspike +b *!test@*4
1976         char* pars[128];
1977         char original[MAXBUF];
1978         strlcpy(original,params,MAXBUF);
1979
1980         if (!strchr(params,' '))
1981         {
1982                 WriteOpers("WARNING! 'm' token in data stream without any parameters! Something fishy is going on!");
1983                 return;
1984         }
1985
1986         int index = 0;
1987
1988         char* src = strtok(params," ");
1989         userrec* user = Find(src);
1990
1991         if (user)
1992         {
1993                 log(DEBUG,"Found user: %s",user->nick);
1994                 char* parameter = strtok(NULL," ");
1995                 while (parameter)
1996                 {
1997                         pars[index++] = parameter;
1998                         parameter = strtok(NULL," ");
1999                 }
2000
2001                 log(DEBUG,"Calling merge_mode2");
2002                 merge_mode2(pars,index,user);
2003         }
2004 }
2005
2006
2007 void handle_L(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2008 {
2009         char* nick = NULL;
2010         char* channel = NULL;
2011         char* reason = NULL;
2012         log(DEBUG,"L TOKEN PARS: '%s'",params);
2013         if (strstr(params,":#"))
2014         {
2015                 nick = strtok(params," ");
2016                 channel = strtok(NULL,"\r\n");
2017                 channel++;
2018                 reason = "";
2019         }
2020         else
2021         {
2022                 nick = strtok(params," ");
2023                 channel = strtok(NULL," :");
2024                 reason = strtok(NULL,"\r\n");
2025                 reason++;
2026         }
2027         userrec* user = Find(nick);
2028         if ((user) && (channel) && (reason))
2029         {
2030                 if ((!reason) && (*reason != '\0'))
2031                 {
2032                         del_channel(user,channel,reason,true);
2033                 }
2034                 else
2035                 {
2036                         del_channel(user,channel,NULL,true);
2037                 }
2038         }
2039 }
2040
2041 void handle_K(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2042 {
2043         char* src = strtok(params," ");
2044         char* nick = strtok(NULL," :");
2045         char* reason = strtok(NULL,"\r\n");
2046         char kreason[MAXBUF];
2047         reason++;
2048
2049         userrec* u = Find(nick);
2050         userrec* user = Find(src);
2051
2052         if ((user) && (u))
2053         {
2054                 WriteTo(user, u, "KILL %s :%s!%s!%s!%s (%s)", u->nick, source->name, ServerName, user->dhost,user->nick,reason);
2055                 WriteOpers("*** Remote kill from %s by %s: %s!%s@%s (%s)",source->name,user->nick,u->nick,u->ident,u->host,reason);
2056                 snprintf(kreason,MAXBUF,"[%s] Killed (%s (%s))",source->name,user->nick,reason);
2057                 kill_link(u,kreason);
2058         }
2059 }
2060
2061 void handle_Q(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2062 {
2063         char* nick = strtok(params," :");
2064         char* reason = strtok(NULL,"\r\n");
2065         reason++;
2066
2067         userrec* user = Find(nick);
2068
2069         if (user)
2070         {
2071                 if (strlen(reason)>MAXQUIT)
2072                 {
2073                         reason[MAXQUIT-1] = '\0';
2074                 }
2075
2076
2077                 WriteCommonExcept(user,"QUIT :%s",reason);
2078
2079                 user_hash::iterator iter = clientlist.find(user->nick);
2080
2081                 if (iter != clientlist.end())
2082                 {
2083                         log(DEBUG,"deleting user hash value %d",iter->second);
2084                         clientlist.erase(iter);
2085                 }
2086
2087                 if (user->registered == 7)
2088                 {
2089                         purge_empty_chans(user);
2090                 }
2091                 delete user;
2092         }
2093 }
2094
2095 void handle_n(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2096 {
2097         char* oldnick = strtok(params," ");
2098         char* newnick = strtok(NULL," ");
2099
2100         userrec* user = Find(oldnick);
2101
2102         if (user)
2103         {
2104                 if (is_uline(tcp_host))
2105                 {
2106                         int MOD_RESULT = 0;
2107                         FOREACH_RESULT(OnUserPreNick(user,newnick));
2108                         if (MOD_RESULT) {
2109                                 // if a module returns true, the nick change couldnt be allowed
2110                                 kill_link(user,"Nickname collision");
2111                                 return;
2112                         }
2113                         if (matches_qline(newnick))
2114                         {
2115                                 kill_link(user,"Nickname collision");
2116                                 return;
2117                         }
2118
2119                         // broadcast this because its a services thingy
2120                         char buffer[MAXBUF];
2121                         snprintf(buffer,MAXBUF,"n %s %s",user->nick,newnick);
2122                         NetSendToAllExcept(tcp_host,buffer);
2123                 }
2124                 WriteCommon(user,"NICK %s",newnick);
2125                 user = ReHashNick(user->nick, newnick);
2126                 if (!user) return;
2127                 if (!user->nick) return;
2128                 strlcpy(user->nick, newnick,NICKMAX);
2129                 log(DEBUG,"new nick set: %s",user->nick);
2130         }
2131 }
2132
2133 // k <SOURCE> <DEST> <CHANNEL> :<REASON>
2134 void handle_k(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2135 {
2136         char* src = strtok(params," ");
2137         char* dest = strtok(NULL," ");
2138         char* channel = strtok(NULL," :");
2139         char* reason = strtok(NULL,"\r\n");
2140         reason++;
2141         userrec* s = Find(src);
2142         userrec* d = Find(dest);
2143         chanrec* c = FindChan(channel);
2144         if ((s) && (d) && (c))
2145         {
2146                 kick_channel(s,d,c,reason);
2147                 return;
2148         }
2149         d = Find(channel);
2150         c = FindChan(dest);
2151         if ((s) && (d) && (c))
2152         {
2153                 kick_channel(s,d,c,reason);
2154                 return;
2155         }
2156 }
2157
2158 void handle_AT(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2159 {
2160         char* who = strtok(params," :");
2161         char* text = strtok(NULL,"\r\n");
2162         text++;
2163         userrec* s = Find(who);
2164         if (s)
2165         {
2166                 WriteWallOps(s,true,text);
2167         }
2168 }
2169
2170 void handle_H(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2171 {
2172         log(DEBUG,"Adding ULined server %s to my map",params);
2173         ircd_connector s;
2174         s.SetState(STATE_DISCONNECTED);
2175         s.SetServerName(params);
2176
2177         for (int j = 0; j < 32; j++)
2178         {
2179                 if (me[j] != NULL)
2180                 {
2181                         for (int k = 0; k < me[j]->connectors.size(); k++)
2182                         {
2183                                 if (!strcasecmp(me[j]->connectors[k].GetServerName().c_str(),params))
2184                                 {
2185                                         // dont allow a server to be added twice
2186                                         log(DEBUG,"ULined server %s already in the map!",params);
2187                                         return;
2188                                 }
2189                         }
2190                 }
2191         }
2192
2193         source->connectors.push_back(s);
2194         WriteOpers("Non-Mesh server %s has joined the network",params);
2195 }
2196
2197 void handle_N(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2198 {
2199         char* tm = strtok(params," ");
2200         char* nick = strtok(NULL," ");
2201         char* host = strtok(NULL," ");
2202         char* dhost = strtok(NULL," ");
2203         char* ident = strtok(NULL," ");
2204         char* modes = strtok(NULL," ");
2205         char* ipaddr = strtok(NULL," ");
2206         char* server = strtok(NULL," :");
2207         char* gecos = strtok(NULL,"\r\n");
2208         gecos++;
2209         modes++;
2210         time_t TS = atoi(tm);
2211         user_hash::iterator iter = clientlist.find(nick);
2212         if (iter != clientlist.end())
2213         {
2214                 // nick collision
2215                 WriteOpers("Nickname collision: %s@%s != %s@%s",nick,server,iter->second->nick,iter->second->server);
2216                 char str[MAXBUF];
2217                 snprintf(str,MAXBUF,"Killed (Nick Collision (%s@%s < %s@%s))",nick,server,iter->second->nick,iter->second->server);
2218                 WriteServ(iter->second->fd, "KILL %s :%s",iter->second->nick,str);
2219                 kill_link(iter->second,str);
2220         }
2221         clientlist[nick] = new userrec();
2222         // remote users have an fd of -1. This is so that our Write abstraction
2223         // routines know to route any messages to this record away to whatever server
2224         // theyre on.
2225         clientlist[nick]->fd = -1;
2226         strlcpy(clientlist[nick]->nick, nick,NICKMAX);
2227         strlcpy(clientlist[nick]->host, host,160);
2228         strlcpy(clientlist[nick]->dhost, dhost,160);
2229         strlcpy(clientlist[nick]->server, server,256);
2230         strlcpy(clientlist[nick]->ident, ident,10); // +1 char to compensate for tilde
2231         strlcpy(clientlist[nick]->fullname, gecos,128);
2232         strlcpy(clientlist[nick]->ip,ipaddr,32);
2233         clientlist[nick]->signon = TS;
2234         clientlist[nick]->nping = 0; // this is ignored for a remote user anyway.
2235         clientlist[nick]->lastping = 1;
2236         clientlist[nick]->port = 0; // so is this...
2237         clientlist[nick]->registered = 7; // this however we need to set for them to receive messages and appear online
2238         clientlist[nick]->idle_lastmsg = TIME; // this is unrealiable and wont actually be used locally
2239         for (int i = 0; i < MAXCHANS; i++)
2240         {
2241                 clientlist[nick]->chans[i].channel = NULL;
2242                 clientlist[nick]->chans[i].uc_modes = 0;
2243         }
2244         FOREACH_MOD OnGlobalConnect(clientlist[nick]);
2245         if (strchr(clientlist[nick]->modes,'o'))
2246         {
2247                 FOREACH_MOD OnGlobalOper(clientlist[nick]);
2248         }
2249 }
2250
2251 void handle_F(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2252 {
2253         long tdiff = TIME - atoi(params);
2254         if (tdiff)
2255                 WriteOpers("TS split for %s -> %s: %d",source->name,reply->name,tdiff);
2256 }
2257
2258 void handle_a(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2259 {
2260         char* nick = strtok(params," :");
2261         char* gecos = strtok(NULL,"\r\n");
2262
2263         userrec* user = Find(nick);
2264
2265         if (user)
2266                 strlcpy(user->fullname,gecos,MAXBUF);
2267 }
2268
2269 void handle_b(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2270 {
2271         char* nick = strtok(params," ");
2272         char* host = strtok(NULL," ");
2273
2274         userrec* user = Find(nick);
2275
2276         if (user)
2277                 strlcpy(user->dhost,host,160);
2278 }
2279
2280 void handle_plus(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2281 {
2282         // %s %s %d %d
2283         // + test3.chatspike.net 7010 -2016508415
2284         char* servername = strtok(params," ");
2285         char* ipaddr = strtok(NULL," ");
2286         char* ipport = strtok(NULL," ");
2287         char* cookie = strtok(NULL," ");
2288         log(DEBUG,"*** Connecting back to %s:%d",ipaddr,atoi(ipport));
2289
2290
2291         bool conn_already = false;
2292         for (int i = 0; i < 32; i++)
2293         {
2294                 if (me[i] != NULL)
2295                 {
2296                         for (int j = 0; j < me[i]->connectors.size(); j++)
2297                         {
2298                                 if (!strcasecmp(me[i]->connectors[j].GetServerName().c_str(),servername))
2299                                 {
2300                                         if (me[i]->connectors[j].GetServerPort() == atoi(ipport))
2301                                         {
2302                                                 log(DEBUG,"Already got a connection to %s:%d, ignoring +",ipaddr,atoi(ipport));
2303                                                 conn_already = true;
2304                                         }
2305                                 }
2306                         }
2307                 }
2308         }
2309         if (!conn_already)
2310                 me[defaultRoute]->MeshCookie(ipaddr,atoi(ipport),atoi(cookie),servername);
2311 }
2312
2313 void handle_R(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2314 {
2315         char* server = strtok(params," ");
2316         char* data = strtok(NULL,"\r\n");
2317         if ((!data) || (!server))
2318         {
2319                 log(DEBUG,"Someones playing silly buggers, attempting to send to a null server or send a null message (BUG?)");
2320                 return;
2321         }
2322
2323         log(DEBUG,"Forwarded packet '%s' to '%s'",data,server);
2324         NetSendToOne(server,data);
2325 }
2326
2327 void handle_J(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2328 {
2329         // IMPORTANT NOTE
2330         // The J token currently has no timestamp - this needs looking at
2331         // because it will allow splitriding.
2332         char* nick = strtok(params," ");
2333         char* channel = strtok(NULL," ");
2334         userrec* user = Find(nick);
2335         while (channel)
2336         {
2337                 if ((user != NULL) && (strcmp(channel,"")))
2338                 {
2339                         char privilage = '\0';
2340                         if (channel[0] != '#')
2341                         {
2342                                 privilage = channel[0];
2343                                 channel++;
2344                         }
2345                         add_channel(user,channel,"",true);
2346
2347                         // now work out the privilages they should have on each channel
2348                         // and send the appropriate servermodes.
2349                         for (int i = 0; i != MAXCHANS; i++)
2350                         {
2351                                 if (user->chans[i].channel)
2352                                 {
2353                                         if (!strcasecmp(user->chans[i].channel->name,channel))
2354                                         {
2355                                                 if (privilage == '@')
2356                                                 {
2357                                                         user->chans[i].uc_modes = user->chans[i].uc_modes | UCMODE_OP;
2358                                                         WriteChannelLocal(user->chans[i].channel, NULL, "MODE %s +o %s",channel,user->nick);
2359                                                 }
2360                                                 if (privilage == '%')
2361                                                 {
2362                                                         user->chans[i].uc_modes = user->chans[i].uc_modes | UCMODE_HOP;
2363                                                         WriteChannelLocal(user->chans[i].channel, NULL, "MODE %s +h %s",channel,user->nick);
2364                                                 }
2365                                                 if (privilage == '+')
2366                                                 {
2367                                                         user->chans[i].uc_modes = user->chans[i].uc_modes | UCMODE_VOICE;
2368                                                         WriteChannelLocal(user->chans[i].channel, NULL, "MODE %s +v %s",channel,user->nick);
2369                                                 }
2370                                         }
2371                                 }
2372                         }
2373
2374                 }
2375                 channel = strtok(NULL," ");
2376         }
2377 }
2378
2379 void handle_dollar(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2380 {
2381         log(DEBUG,"Storing routing table...");
2382         char* sourceserver = strtok(params," ");
2383         char* server = strtok(NULL," ");
2384         for (int i = 0; i < 32; i++)
2385         {
2386                 if (me[i] != NULL)
2387                 {
2388                         for (int j = 0; j < me[i]->connectors.size(); j++)
2389                         {
2390                                 if (!strcasecmp(me[i]->connectors[j].GetServerName().c_str(),sourceserver))
2391                                 {
2392                                         me[i]->connectors[j].routes.clear();
2393                                         log(DEBUG,"Found entry for source server.");
2394                                         while (server)
2395                                         {
2396                                                 // store each route
2397                                                 me[i]->connectors[j].routes.push_back(server);
2398                                                 log(DEBUG,"*** Stored route: %s -> %s -> %s",ServerName,sourceserver,server);
2399                                                 server = strtok(NULL," ");
2400                                         }
2401                                         return;
2402                                 }
2403                         }
2404                 }
2405         }
2406         log(DEBUG,"Warning! routing table received from nonexistent server!");
2407 }
2408
2409 void handle_amp(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2410 {
2411         log(DEBUG,"Netsplit! %s split from mesh, removing!",params);
2412         WriteOpers("*** NOTICE - Controlled netsplit: %s split from %s",params,ServerName);
2413         bool go_again = true;
2414         while (go_again)
2415         {
2416                 go_again = false;
2417                 for (int i = 0; i < 32; i++)
2418                 {
2419                         if (me[i] != NULL)
2420                         {
2421                                 for (vector<ircd_connector>::iterator j = me[i]->connectors.begin(); j != me[i]->connectors.end(); j++)
2422                                 {
2423                                         if (!strcasecmp(j->GetServerName().c_str(),params))
2424                                         {
2425                                                 j->routes.clear();
2426                                                 j->CloseConnection();
2427                                                 me[i]->connectors.erase(j);
2428                                                 go_again = true;
2429                                                 break;
2430                                         }
2431                                 }
2432                         }
2433                 }
2434         }
2435         log(DEBUG,"Removed server. Will remove clients...");
2436         // iterate through the userlist and remove all users on this server.
2437         // because we're dealing with a mesh, we dont have to deal with anything
2438         // "down-route" from this server (nice huh)
2439         go_again = true;
2440         char reason[MAXBUF];
2441         snprintf(reason,MAXBUF,"%s %s",ServerName,params);
2442         while (go_again)
2443         {
2444                 go_again = false;
2445                 for (user_hash::const_iterator u = clientlist.begin(); u != clientlist.end(); u++)
2446                 {
2447                         if (!strcasecmp(u->second->server,params))
2448                         {
2449                                 kill_link(u->second,reason);
2450                                 go_again = true;
2451                                 break;
2452                         }
2453                 }
2454         }
2455 }
2456
2457 unsigned long authcookie;
2458
2459 void handle_hash(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2460 {
2461         // # <mask> <who-set-it> <time-set> <duration> :<reason>
2462         log(DEBUG,"Adding G-line");
2463         char* mask = strtok(params," ");
2464         char* who = strtok(NULL," ");
2465         char* create_time = strtok(NULL," ");
2466         char* duration = strtok(NULL," :");
2467         char* reason = strtok(NULL,"\r\n");
2468         reason++;
2469         add_gline(atoi(duration),(const char*)who,(const char*)reason,(const char*)mask);
2470         // we must update the creation time on this gline
2471         // now that we've added it, or it wont expire at the right time.
2472         gline_set_creation_time(mask,atoi(create_time));
2473         if (!atoi(duration))
2474         {
2475                 WriteOpers("*** %s Added permenant G-Line on %s.",who,mask);
2476         }
2477         else
2478         {
2479                 WriteOpers("*** %s Added timed G-Line on %s to expire in %d seconds.",who,mask,atoi(duration));
2480         }
2481         apply_lines();
2482 }
2483
2484 void handle_dot(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2485 {
2486         log(DEBUG,"Removing G-line");
2487         char* mask = strtok(params," ");
2488         char* who = strtok(NULL," ");
2489         if (mask)
2490         {
2491                 if (del_gline((const char*)mask))
2492                 {
2493                         if (who)
2494                         {
2495                                 WriteOpers("*** %s Removed G-line on %s.",who,mask);
2496                         }
2497                 }
2498         }
2499 }
2500
2501 void handle_add_sqline(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2502 {
2503         // { <mask> <who-set-it> <time-set> <duration> :<reason>
2504         log(DEBUG,"Adding Q-line");
2505         char* mask = strtok(params," ");
2506         char* who = strtok(NULL," ");
2507         char* create_time = strtok(NULL," ");
2508         char* duration = strtok(NULL," :");
2509         char* reason = strtok(NULL,"\r\n");
2510         reason++;
2511         add_qline(atoi(duration),(const char*)who,(const char*)reason,(const char*)mask);
2512         // we must update the creation time on this gline
2513         // now that we've added it, or it wont expire at the right time.
2514         qline_set_creation_time(mask,atoi(create_time));
2515         qline_make_global(mask);
2516         if (!atoi(duration))
2517         {
2518                 WriteOpers("*** %s Added permenant Q-Line on %s.",who,mask);
2519         }
2520         else
2521         {
2522                 WriteOpers("*** %s Added timed Q-Line on %s to expire in %d seconds.",who,mask,atoi(duration));
2523         }
2524         apply_lines();
2525 }
2526
2527 void handle_del_sqline(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2528 {
2529         log(DEBUG,"Removing Q-line");
2530         char* mask = strtok(params," ");
2531         char* who = strtok(NULL," ");
2532         if (mask)
2533         {
2534                 if (del_qline((const char*)mask))
2535                 {
2536                         if (who)
2537                         {
2538                                 WriteOpers("*** %s Removed Q-line on %s.",who,mask);
2539                         }
2540                 }
2541         }
2542 }
2543
2544 void handle_add_szline(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2545 {
2546         // } <mask> <who-set-it> <time-set> <duration> :<reason>
2547         log(DEBUG,"Adding Z-line");
2548         char* mask = strtok(params," ");
2549         char* who = strtok(NULL," ");
2550         char* create_time = strtok(NULL," ");
2551         char* duration = strtok(NULL," :");
2552         char* reason = strtok(NULL,"\r\n");
2553         reason++;
2554         add_zline(atoi(duration),(const char*)who,(const char*)reason,(const char*)mask);
2555         // we must update the creation time on this gline
2556         // now that we've added it, or it wont expire at the right time.
2557         zline_set_creation_time(mask,atoi(create_time));
2558         zline_make_global(mask);
2559         if (!atoi(duration))
2560         {
2561                 WriteOpers("*** %s Added permenant Z-Line on %s.",who,mask);
2562         }
2563         else
2564         {
2565                 WriteOpers("*** %s Added timed Z-Line on %s to expire in %d seconds.",who,mask,atoi(duration));
2566         }
2567         apply_lines();
2568 }
2569
2570 void handle_del_szline(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2571 {
2572         log(DEBUG,"Removing Z-line");
2573         char* mask = strtok(params," ");
2574         char* who = strtok(NULL," ");
2575         if (mask)
2576         {
2577                 if (del_zline((const char*)mask))
2578                 {
2579                         if (who)
2580                         {
2581                                 WriteOpers("*** %s Removed Q-line on %s.",who,mask);
2582                         }
2583                 }
2584         }
2585 }
2586
2587 void handle_pipe(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2588 {
2589         char* nick = strtok(params," ");
2590         char* type = strtok(params," ");
2591         userrec* u = Find(nick);
2592         if (u)
2593         {
2594                 strlcpy(u->oper,type,NICKMAX);
2595         }
2596 }
2597
2598
2599 void process_restricted_commands(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host,char* ipaddr,int port)
2600 {
2601         char buffer[MAXBUF];
2602         int MOD_RESULT = 0;
2603
2604         switch(token)
2605         {
2606                 // Y <TS>
2607                 // start netburst
2608                 case 'Y':
2609                         nb_start = TIME;
2610                         WriteOpers("Server %s is starting netburst.",tcp_host);
2611                         // now broadcast this new servers address out to all servers that are linked to us,
2612                         // except the newcomer. They'll all attempt to connect back to it.
2613                         authcookie = rand()*rand();
2614                         snprintf(buffer,MAXBUF,"~ %lu",(unsigned long)authcookie);
2615                         NetSendToAll(buffer);
2616                 break;
2617                 // ~
2618                 // Store authcookie
2619                 // once stored, this authcookie permits other servers to log in
2620                 // without user or password, using it.
2621                 case '~':
2622                         auth_cookies.push_back(atoi(params));
2623                         log(DEBUG,"*** Stored auth cookie, will permit servers with auth-cookie %d",atoi(params));
2624                 break;
2625                 // connect back to a server using an authcookie
2626                 case '+':
2627                         handle_plus(token,params,source,reply,tcp_host);
2628                 break;
2629                 // routing table
2630                 case '$':
2631                         handle_dollar(token,params,source,reply,tcp_host);
2632                 break;
2633                 // node unreachable - we cant route to a server, sooooo we slit it off.
2634                 // servers can generate these for themselves for an squit.
2635                 case '&':
2636                         handle_amp(token,params,source,reply,tcp_host);
2637                 break;
2638                 // R <server> <data>
2639                 // redirect token, send all of <data> along to the given
2640                 // server as this server has been found to still have a route to it
2641                 case 'R':
2642                         handle_R(token,params,source,reply,tcp_host);
2643                 break;
2644                 // ?
2645                 // ping
2646                 case '?':
2647                         reply->SendPacket("!",tcp_host);
2648                 break;
2649                 // ?
2650                 // pong
2651                 case '!':
2652                 break;
2653                 // *
2654                 // no operation
2655                 case '*':
2656                 break;
2657                 // N <TS> <NICK> <HOST> <DHOST> <IDENT> <MODES> <SERVER> :<GECOS>
2658                 // introduce remote client
2659                 case 'N':
2660                         handle_N(token,params,source,reply,tcp_host);
2661                 break;
2662                 // a <NICK> :<GECOS>
2663                 // change GECOS (SETNAME)
2664                 case 'a':
2665                         handle_a(token,params,source,reply,tcp_host);
2666                 break;
2667                 // b <NICK> :<HOST>
2668                 // change displayed host (SETHOST)
2669                 case 'b':
2670                         handle_b(token,params,source,reply,tcp_host);
2671                 break;
2672                 // t <NICK> <CHANNEL> :<TOPIC>
2673                 // change a channel topic
2674                 case 't':
2675                         handle_t(token,params,source,reply,tcp_host);
2676                 break;
2677                 // i <NICK> <CHANNEL>
2678                 // invite a user to a channel
2679                 case 'i':
2680                         handle_i(token,params,source,reply,tcp_host);
2681                 break;
2682                 // k <SOURCE> <DEST> <CHANNEL> :<REASON>
2683                 // kick a user from a channel
2684                 case 'k':
2685                         handle_k(token,params,source,reply,tcp_host);
2686                 break;
2687                 // n <NICK> <NEWNICK>
2688                 // change nickname of client -- a server should only be able to
2689                 // change the nicknames of clients that reside on it unless
2690                 // they are ulined.
2691                 case 'n':
2692                         handle_n(token,params,source,reply,tcp_host);
2693                 break;
2694                 // J <NICK> <CHANLIST>
2695                 // Join user to channel list, merge channel permissions
2696                 case 'J':
2697                         handle_J(token,params,source,reply,tcp_host);
2698                 break;
2699                 // T <TS> <CHANNEL> <TOPICSETTER> :<TOPIC>
2700                 // change channel topic (netburst only)
2701                 case 'T':
2702                         handle_T(token,params,source,reply,tcp_host);
2703                 break;
2704                 // M <TARGET> <MODES> [MODE-PARAMETERS]
2705                 // Server setting modes on an object
2706                 case 'M':
2707                         handle_M(token,params,source,reply,tcp_host);
2708                 break;
2709                 // m <SOURCE> <TARGET> <MODES> [MODE-PARAMETERS]
2710                 // User setting modes on an object
2711                 case 'm':
2712                         handle_m(token,params,source,reply,tcp_host);
2713                 break;
2714                 // P <SOURCE> <TARGET> :<TEXT>
2715                 // Send a private/channel message
2716                 case 'P':
2717                         handle_P(token,params,source,reply,tcp_host);
2718                 break;
2719                 // V <SOURCE> <TARGET> :<TEXT>
2720                 // Send a private/channel notice
2721                 case 'V':
2722                         handle_V(token,params,source,reply,tcp_host);
2723                 break;
2724                 // L <SOURCE> <CHANNEL> :<REASON>
2725                 // User parting a channel
2726                 case 'L':
2727                         handle_L(token,params,source,reply,tcp_host);
2728                 break;
2729                 // Q <SOURCE> :<REASON>
2730                 // user quitting
2731                 case 'Q':
2732                         handle_Q(token,params,source,reply,tcp_host);
2733                 break;
2734                 // H <SERVER>
2735                 // introduce non-meshable server (such as a services server)
2736                 case 'H':
2737                         handle_H(token,params,source,reply,tcp_host);
2738                 break;
2739                 // K <SOURCE> <DEST> :<REASON>
2740                 // remote kill
2741                 case 'K':
2742                         handle_K(token,params,source,reply,tcp_host);
2743                 break;
2744                 // @ <SOURCE> :<TEXT>
2745                 // wallops
2746                 case '@':
2747                         handle_AT(token,params,source,reply,tcp_host);
2748                 break;
2749                 // # <mask> <who-set-it> <time-set> <duration> :<reason>
2750                 // add gline
2751                 case '#':
2752                         handle_hash(token,params,source,reply,tcp_host);
2753                 break;
2754                 // . <mask> <who>
2755                 // remove gline
2756                 case '.':
2757                         handle_dot(token,params,source,reply,tcp_host);
2758                 break;
2759                 // # <mask> <who-set-it> <time-set> <duration> :<reason>
2760                 // add gline
2761                 case '{':
2762                         handle_add_sqline(token,params,source,reply,tcp_host);
2763                 break;
2764                 // . <mask> <who>
2765                 // remove gline
2766                 case '[':
2767                         handle_del_sqline(token,params,source,reply,tcp_host);
2768                 break;
2769                 // # <mask> <who-set-it> <time-set> <duration> :<reason>
2770                 // add gline
2771                 case '}':
2772                         handle_add_szline(token,params,source,reply,tcp_host);
2773                 break;
2774                 // . <mask> <who>
2775                 // remove gline
2776                 case ']':
2777                         handle_del_szline(token,params,source,reply,tcp_host);
2778                 break;
2779                 // | <nick> <opertype>
2780                 // set opertype
2781                 case '|':
2782                         handle_pipe(token,params,source,reply,tcp_host);
2783                 break;
2784                 // F <TS>
2785                 // end netburst
2786                 case 'F':
2787                         WriteOpers("Server %s has completed netburst. (%d secs)",tcp_host,TIME-nb_start);
2788                         handle_F(token,params,source,reply,tcp_host);
2789                         nb_start = 0;
2790                         // tell all the other servers to use this authcookie to connect back again
2791                         // got '+ test3.chatspike.net 7010 -2016508415' from test.chatspike.net
2792                         snprintf(buffer,MAXBUF,"+ %s %s %d %lu",tcp_host,ipaddr,port,(unsigned long)authcookie);
2793                         NetSendToAllExcept(tcp_host,buffer);
2794                 break;
2795                 case '/':
2796                         WriteOpers("Server %s is IRCServices-based server (assumes-SVSMODE) - Nickname Services: %s",tcp_host,params);
2797                         strlcpy(source->nickserv,params,NICKMAX);
2798                 break;
2799                 // F <TS>
2800                 // end netburst with no mesh creation
2801                 case 'f':
2802                         WriteOpers("Server %s has completed netburst. (%d secs)",tcp_host,TIME-nb_start);
2803                         handle_F(token,params,source,reply,tcp_host);
2804                         nb_start = 0;
2805                         // tell everyone else about the new server name so they just add it in the disconnected
2806                         // state
2807                         snprintf(buffer,MAXBUF,"u %s :%s",tcp_host,GetServerDescription(tcp_host).c_str());
2808                         NetSendToAllExcept(tcp_host,buffer);
2809                 break;
2810                 // X <reserved>
2811                 // Send netburst now
2812                 case 'X':
2813                         WriteOpers("Sending my netburst to %s",tcp_host);
2814                         DoSync(source,tcp_host);
2815                         WriteOpers("Send of netburst to %s completed",tcp_host);
2816                         NetSendMyRoutingTable();
2817                 break;
2818                 // anything else
2819                 default:
2820                         MOD_RESULT = 0;
2821                         string_list s;
2822                         char* data = strtok(params," ");
2823                         while (data)
2824                         {
2825                                 if (*data == ':')
2826                                 {
2827                                         // the last item is a special case
2828                                         data++;
2829                                         char datalast[MAXBUF];
2830                                         strlcpy(datalast,data,MAXBUF);
2831                                         data = strtok(NULL," ");
2832                                         while (data)
2833                                         {
2834                                                 strlcpy(datalast," ",MAXBUF);
2835                                                 strlcpy(datalast,data,MAXBUF);
2836                                                 data = strtok(NULL," ");
2837                                         }
2838                                         s.push_back(data);
2839                                         break;
2840                                 }
2841                                 s.push_back(data);
2842                                 data = strtok(NULL," ");
2843                         }
2844                         FOREACH_RESULT(OnMeshToken(token,s,source,reply,tcp_host,ipaddr,port));
2845                         if (!MOD_RESULT)
2846                                 WriteOpers("WARNING! Unknown datagram type '%c'",token);
2847                 break;
2848         }
2849 }
2850
2851
2852 void handle_link_packet(char* udp_msg, char* tcp_host, serverrec *serv)
2853 {
2854         if ((!strncmp(udp_msg,"USER ",5)) || (!strncmp(udp_msg,"NICK ",5)) || (!strncmp(udp_msg,"PASS ",5)) || (!strncmp(udp_msg,"SERVER ",7)))
2855         {
2856                 // a user on a server port, just close their connection.
2857                 RemoveServer(tcp_host);
2858                 return;
2859         }
2860
2861         char response[10240];
2862         char token = udp_msg[0];
2863         char* old = udp_msg;
2864
2865         if ((token != ':') && (strlen(udp_msg)>1) && (udp_msg[1] != ' '))
2866         {
2867                 WriteOpers("*** Discarded %d chars illegal data from %s",strlen(udp_msg),tcp_host);
2868         }
2869
2870         if (token == ':') // leading :servername or details - strip them off (services does this, sucky)
2871         {
2872                 char* src = udp_msg+1;
2873                 while (udp_msg[0] != ' ')
2874                         udp_msg++;
2875                 udp_msg[0] = 0;
2876                 udp_msg++;
2877                 char* comd = udp_msg;
2878                 while (udp_msg[0] != ' ')
2879                         udp_msg++;
2880                 udp_msg[0] = 0;
2881                 udp_msg++;
2882                 char data[MAXBUF];
2883                 char source[MAXBUF];
2884                 char command[MAXBUF];
2885                 strlcpy(data,udp_msg,512);
2886                 strlcpy(source,src,MAXBUF);
2887                 strlcpy(command,comd,MAXBUF);
2888                 udp_msg = old;
2889
2890                 // unused numeric:
2891                 // :services-dev.chatspike.net 433 Craig Craig :Nickname is registered to someone else
2892                 if (!strcmp(command,"433"))
2893                 {
2894                         token = '*';
2895                 }
2896                 if (!strcmp(command,"432"))
2897                 {
2898                         token = '*';
2899                 }
2900                 if (!strcmp(command,"PING"))
2901                 {
2902                         token = '*';
2903                 }
2904                 if (!strcmp(command,"NOTICE"))
2905                 {
2906                         snprintf(udp_msg,MAXBUF,"V %s %s",source,data);
2907                         log(DEBUG,"Rewrote NOTICE from services to: '%s'",udp_msg);
2908                         token = udp_msg[0];
2909                 }
2910                 if (!strcmp(command,"QUIT"))
2911                 {
2912                         if ((!udp_msg) || (!strcmp(data,"")) || (strcmp(data,":")))
2913                         {
2914                                 strcpy(data,":No reason");
2915                         }
2916                         if (!strcmp(data,":"))
2917                         {
2918                                 strcpy(data,":No reason");
2919                         }
2920                         snprintf(udp_msg,MAXBUF,"Q %s %s",source,data);
2921                         log(DEBUG,"Rewrote QUIT from services to: '%s'",udp_msg);
2922                         token = udp_msg[0];
2923                 }
2924                 if (!strcmp(command,"SQUIT"))
2925                 {
2926                         snprintf(udp_msg,MAXBUF,"& %s",source);
2927                         log(DEBUG,"Rewrote SQUIT from services to: '%s'",udp_msg);
2928                         token = udp_msg[0];
2929                 }
2930                 if (!strcmp(command,"SVSMODE"))
2931                 {
2932                         snprintf(udp_msg,MAXBUF,"m %s %s",source,data);
2933                         log(DEBUG,"Rewrote SVSMODE from services to: '%s'",udp_msg);
2934                         token = udp_msg[0];
2935                 }
2936                 if (!strcmp(command,"SVS2MODE"))
2937                 {
2938                         snprintf(udp_msg,MAXBUF,"m %s %s",source,data);
2939                         log(DEBUG,"Rewrote SVS2MODE from services to: '%s'",udp_msg);
2940                         token = udp_msg[0];
2941                 }
2942                 // todo: this wont work without u:lines
2943                 // in give_ops etc allow nick on a u:lined serv to do just about anything
2944                 if (!strcmp(command,"MODE"))
2945                 {
2946                         snprintf(udp_msg,MAXBUF,"m %s %s",source,data);
2947                         log(DEBUG,"Rewrote MODE from services to: '%s'",udp_msg);
2948                         token = udp_msg[0];
2949                 }
2950                 if (!strcmp(command,"KICK"))
2951                 {
2952                         snprintf(udp_msg,MAXBUF,"k %s %s",source,data);
2953                         log(DEBUG,"Rewrote KICK from services to: '%s'",udp_msg);
2954                         token = udp_msg[0];
2955                 }
2956                 if (!strcmp(command,"KILL"))
2957                 {
2958                         snprintf(udp_msg,MAXBUF,"K %s %s",source,data);
2959                         log(DEBUG,"Rewrote KILL from services to: '%s'",udp_msg);
2960                         token = udp_msg[0];
2961                 }
2962                 if (!strcmp(command,"SVSJOIN"))
2963                 {
2964                         snprintf(udp_msg,MAXBUF,"J %s",data);
2965                         NetSendToOne(tcp_host,udp_msg);
2966                         char* nick = strtok(data," ");
2967                         char* chan = strtok(NULL," ");
2968                         log(DEBUG,"Rewrote SVSJOIN from services to: '%s'",udp_msg);
2969                         userrec* u = Find(nick);
2970                         if (u)
2971                         {
2972                                 add_channel(u,chan,"",true);
2973                         }
2974                         token = udp_msg[0];
2975                 }
2976
2977         }
2978
2979         char* params = udp_msg + 2;
2980         char finalparam[1024];
2981         strcpy(finalparam," :xxxx");
2982         if (strstr(udp_msg," :")) {
2983                 strlcpy(finalparam,strstr(udp_msg," :"),1024);
2984         }
2985
2986
2987         if (token == '-') {
2988                 char* cookie = strtok(params," ");
2989                 char* servername = strtok(NULL," ");
2990                 char* serverdesc = finalparam+2;
2991
2992                 WriteOpers("AuthCookie CONNECT from %s (%s)",servername,tcp_host);
2993
2994                 for (int u = 0; u < auth_cookies.size(); u++)
2995                 {
2996                         if (auth_cookies[u] == atoi(cookie))
2997                         {
2998                                 WriteOpers("Allowed cookie from %s, is now part of the mesh",servername);
2999
3000
3001                                 for (int j = 0; j < 32; j++)
3002                                 {
3003                                         if (me[j] != NULL)
3004                                         {
3005                                                 for (int k = 0; k < me[j]->connectors.size(); k++)
3006                                                 {
3007                                                         if (!strcasecmp(me[j]->connectors[k].GetServerName().c_str(),tcp_host))
3008                                                         {
3009                                                                 me[j]->connectors[k].SetServerName(servername);
3010                                                                 me[j]->connectors[k].SetDescription(serverdesc);
3011                                                                 me[j]->connectors[k].SetState(STATE_CONNECTED);
3012                                                                 NetSendMyRoutingTable();
3013                                                                 return;
3014                                                         }
3015                                                 }
3016                                         }
3017                                         WriteOpers("\2WARNING!\2 %s sent us an authentication packet but we are not authenticating with this server right now! Possible intrusion attempt!",tcp_host);
3018                                         return;
3019                                 }
3020
3021
3022                                 return;
3023                         }
3024                 }
3025                 // bad cookie, bad bad! go sit in the corner!
3026                 WriteOpers("Bad cookie from %s!",servername);
3027                 return;
3028         }
3029         else
3030         if (token == 'S') {
3031                 // S test.chatspike.net password portn :ChatSpike InspIRCd test server
3032                 char* servername = strtok(params," ");
3033                 char* password = strtok(NULL," ");
3034                 char* myport = strtok(NULL," ");
3035                 char* revision = strtok(NULL," ");
3036                 char* serverdesc = finalparam+2;
3037
3038                 password = password;
3039
3040                 WriteOpers("CONNECT from %s (%s) (their port: %d)",servername,tcp_host,atoi(myport));
3041
3042                 ircd_connector* cn = serv->FindHost(servername);
3043
3044                 if (cn)
3045                 {
3046                         WriteOpers("CONNECT aborted: Server %s already exists from %s",servername,ServerName);
3047                         char buffer[MAXBUF];
3048                         snprintf(buffer,MAXBUF,"E :Server %s already exists!",servername);
3049                         serv->SendPacket(buffer,tcp_host);
3050                         RemoveServer(tcp_host);
3051                         return;
3052                 }
3053
3054                 if (atoi(revision) != GetRevision())
3055                 {
3056                         WriteOpers("CONNECT aborted: Could not link to %s, is an incompatible version %s, our version is %d",servername,revision,GetRevision());
3057                         char buffer[MAXBUF];
3058                         sprintf(buffer,"E :Version number mismatch");
3059                         serv->SendPacket(buffer,tcp_host);
3060                         RemoveServer(tcp_host);
3061                         RemoveServer(servername);
3062                         return;
3063                 }
3064
3065                 for (int j = 0; j < serv->connectors.size(); j++)
3066                 {
3067                         if (!strcasecmp(serv->connectors[j].GetServerName().c_str(),tcp_host))
3068                         {
3069                                 serv->connectors[j].SetServerName(servername);
3070                                 serv->connectors[j].SetDescription(serverdesc);
3071                                 serv->connectors[j].SetServerPort(atoi(myport));
3072                         }
3073                 }
3074
3075
3076                 char Link_ServerName[1024];
3077                 char Link_IPAddr[1024];
3078                 char Link_Port[1024];
3079                 char Link_Pass[1024];
3080                 char Link_SendPass[1024];
3081                 int LinkPort = 0;
3082
3083                 // search for a corresponding <link> block in the config files
3084                 for (int i = 0; i < ConfValueEnum("link",&config_f); i++)
3085                 {
3086                         ConfValue("link","name",i,Link_ServerName,&config_f);
3087                         ConfValue("link","ipaddr",i,Link_IPAddr,&config_f);
3088                         ConfValue("link","port",i,Link_Port,&config_f);
3089                         ConfValue("link","recvpass",i,Link_Pass,&config_f);
3090                         ConfValue("link","sendpass",i,Link_SendPass,&config_f);
3091                         log(DEBUG,"(%d) Comparing against name='%s', ipaddr='%s', port='%s', recvpass='%s'",i,Link_ServerName,Link_IPAddr,Link_Port,Link_Pass);
3092                         LinkPort = atoi(Link_Port);
3093                         if ((!strcasecmp(Link_ServerName,servername)) && (!strcmp(Link_Pass,password)))
3094                         {
3095                                 // we have a matching link line -
3096                                 // send a 'diminutive' server message back...
3097                                 snprintf(response,10240,"s %s %s :%s",ServerName,Link_SendPass,ServerDesc);
3098                                 serv->SendPacket(response,servername);
3099
3100                                 for (int t = 0; t < serv->connectors.size(); t++)
3101                                 {
3102                                         if (!strcasecmp(serv->connectors[t].GetServerName().c_str(),servername))
3103                                         {
3104                                                 serv->connectors[t].SetState(STATE_CONNECTED);
3105                                         }
3106                                 }
3107
3108                                 return;
3109                         }
3110                 }
3111                 char buffer[MAXBUF];
3112                 sprintf(buffer,"E :Access is denied (no matching link block)");
3113                 serv->SendPacket(buffer,tcp_host);
3114                 WriteOpers("CONNECT from %s denied, no matching link block",servername);
3115                 RemoveServer(tcp_host);
3116                 RemoveServer(servername);
3117                 return;
3118         }
3119         else
3120         if (token == 's') {
3121                 // S test.chatspike.net password :ChatSpike InspIRCd test server
3122                 char* servername = strtok(params," ");
3123                 char* password = strtok(NULL," ");
3124                 char* serverdesc = finalparam+2;
3125
3126                 password = password;
3127
3128                 // TODO: we should do a check here to ensure that this server is one we recently initiated a
3129                 // link with, and didnt hear an 's' or 'E' back from yet (these are the only two valid responses
3130                 // to an 'S' command. If we didn't recently send an 'S' to this server, theyre trying to spoof
3131                 // a connect, so put out an oper alert!
3132
3133                 // for now, just accept all, we'll fix that later.
3134                 WriteOpers("%s accepted our link credentials ",servername);
3135
3136                 char Link_ServerName[1024];
3137                 char Link_IPAddr[1024];
3138                 char Link_Port[1024];
3139                 char Link_Pass[1024];
3140                 char Link_SendPass[1024];
3141                 int LinkPort = 0;
3142
3143                 // search for a corresponding <link> block in the config files
3144                 for (int i = 0; i < ConfValueEnum("link",&config_f); i++)
3145                 {
3146                         ConfValue("link","name",i,Link_ServerName,&config_f);
3147                         ConfValue("link","ipaddr",i,Link_IPAddr,&config_f);
3148                         ConfValue("link","port",i,Link_Port,&config_f);
3149                         ConfValue("link","recvpass",i,Link_Pass,&config_f);
3150                         ConfValue("link","sendpass",i,Link_SendPass,&config_f);
3151                         log(DEBUG,"(%d) Comparing against name='%s', ipaddr='%s', port='%s', recvpass='%s'",i,Link_ServerName,Link_IPAddr,Link_Port,Link_Pass);
3152                         LinkPort = atoi(Link_Port);
3153                         if (!strcasecmp(Link_ServerName,servername))
3154                         {
3155                                 // matching link at this end too, we're all done!
3156                                 // at this point we must begin key exchange and insert this
3157                                 // server into our 'active' table.
3158                                 for (int j = 0; j < 32; j++)
3159                                 {
3160                                         if (me[j] != NULL)
3161                                         {
3162                                                 for (int k = 0; k < me[j]->connectors.size(); k++)
3163                                                 {
3164                                                         if (!strcasecmp(me[j]->connectors[k].GetServerName().c_str(),tcp_host))
3165                                                         {
3166                                                                 char buffer[MAXBUF];
3167                                                                 me[j]->connectors[k].SetDescription(serverdesc);
3168                                                                 me[j]->connectors[k].SetState(STATE_CONNECTED);
3169                                                                 sprintf(buffer,"X 0");
3170                                                                 serv->SendPacket(buffer,tcp_host);
3171                                                                 DoSync(me[j],tcp_host);
3172                                                                 NetSendMyRoutingTable();
3173                                                                 return;
3174                                                         }
3175                                                 }
3176                                         }
3177                                 }
3178                         }
3179                         else {
3180                                 log(DEBUG,"Server names '%s' and '%s' don't match",Link_ServerName,servername);
3181                         }
3182                 }
3183                 char buffer[MAXBUF];
3184                 sprintf(buffer,"E :Access is denied (no matching link block)");
3185                 serv->SendPacket(buffer,tcp_host);
3186                 WriteOpers("CONNECT from %s denied, no matching link block",servername);
3187                 RemoveServer(tcp_host);
3188                 RemoveServer(servername);
3189                 return;
3190         }
3191         else
3192         if (token == 'U') {
3193                 // U services.chatspike.net password :ChatSpike Services
3194                 //
3195                 // non-meshed link, used by services. Everything coming from a non-meshed link is auto broadcasted.
3196                 char* servername = strtok(params," ");
3197                 char* password = strtok(NULL," ");
3198                 char* serverdesc = finalparam+2;
3199
3200                 char Link_ServerName[1024];
3201                 char Link_IPAddr[1024];
3202                 char Link_Port[1024];
3203                 char Link_Pass[1024];
3204                 char Link_SendPass[1024];
3205                 int LinkPort = 0;
3206
3207                 log(DEBUG,"U-token linked server detected.\n\nservername='%s' password='%s'\n\n",servername,password);
3208
3209
3210                 for (int j = 0; j < 32; j++)
3211                 {
3212                         if (me[j] != NULL)
3213                         {
3214                                 for (int k = 0; k < me[j]->connectors.size(); k++)
3215                                 {
3216                                         if (!strcasecmp(me[j]->connectors[k].GetServerName().c_str(),servername))
3217                                         {
3218                                                 char buffer[MAXBUF];
3219                                                 sprintf(buffer,"E :Access is denied (Server exists in the mesh)");
3220                                                 serv->SendPacket(buffer,tcp_host);
3221                                                 WriteOpers("CONNECT from %s denied, \"%s\" already exists!",tcp_host,servername);
3222                                                 RemoveServer(tcp_host);
3223                                                 return;
3224                                         }
3225                                 }
3226                         }
3227                 }
3228
3229                 // search for a corresponding <link> block in the config files
3230                 for (int i = 0; i < ConfValueEnum("link",&config_f); i++)
3231                 {
3232                         ConfValue("link","name",i,Link_ServerName,&config_f);
3233                         ConfValue("link","ipaddr",i,Link_IPAddr,&config_f);
3234                         ConfValue("link","port",i,Link_Port,&config_f);
3235                         ConfValue("link","recvpass",i,Link_Pass,&config_f);
3236                         ConfValue("link","sendpass",i,Link_SendPass,&config_f);
3237                         log(DEBUG,"(%d) Comparing against name='%s', ipaddr='%s', port='%s', recvpass='%s'",i,Link_ServerName,Link_IPAddr,Link_Port,Link_Pass);
3238                         LinkPort = atoi(Link_Port);
3239                         if ((!strcasecmp(Link_ServerName,servername)) && (!strcmp(Link_Pass,password)))
3240                         {
3241                                 // matching link at this end too, we're all done!
3242                                 // at this point we must begin key exchange and insert this
3243                                 // server into our 'active' table.
3244                                 for (int j = 0; j < 32; j++)
3245                                 {
3246                                         if (me[j] != NULL)
3247                                         {
3248                                                 for (int k = 0; k < me[j]->connectors.size(); k++)
3249                                                 {
3250                                                         if (!strcasecmp(me[j]->connectors[k].GetServerName().c_str(),tcp_host))
3251                                                         {
3252                                                                 char buffer[MAXBUF];
3253                                                                 log(DEBUG,"Found matching link block");
3254                                                                 me[j]->connectors[k].SetDescription(serverdesc);
3255                                                                 me[j]->connectors[k].SetServerName(servername);
3256                                                                 me[j]->connectors[k].SetState(STATE_SERVICES);
3257                                                                 sprintf(buffer,"X 0");
3258                                                                 serv->SendPacket(buffer,servername);
3259                                                                 sprintf(buffer,"s %s %s %lu :%s",ServerName,Link_SendPass,LinkPort,ServerDesc);
3260                                                                 serv->SendPacket(buffer,servername);
3261                                                                 DoSync(me[j],servername);
3262                                                                 snprintf(buffer,MAXBUF,"H %s",servername);
3263                                                                 NetSendToAllExcept(servername,buffer);
3264                                                                 WriteOpers("Non-Mesh server %s has joined the network",servername);
3265                                                                 log(DEBUG,"******** SENDING MY ROUTING TABLE! *******");
3266                                                                 NetSendMyRoutingTable();
3267                                                                 return;
3268                                                         }
3269                                                 }
3270                                         }
3271                                 }
3272                         }
3273                         else {
3274                                 log(DEBUG,"Server names '%s' and '%s' don't match",Link_ServerName,servername);
3275                         }
3276                 }
3277                 log(DEBUG,"No matching link block found");
3278                 char buffer[MAXBUF];
3279                 sprintf(buffer,"E :Access is denied (no matching link block)");
3280                 serv->SendPacket(buffer,tcp_host);
3281                 WriteOpers("CONNECT from %s denied, no matching link block",servername);
3282                 RemoveServer(tcp_host);
3283                 RemoveServer(servername);
3284                 return;
3285         }
3286         else
3287         if (token == 'E') {
3288                 char* error_message = finalparam+2;
3289                 WriteOpers("ERROR from %s: %s",tcp_host,error_message);
3290                 return;
3291         }
3292         else {
3293                 for (int j = 0; j < 32; j++)
3294                 {
3295                         if (me[j] != NULL)
3296                         {
3297                                 for (int x = 0; x < me[j]->connectors.size(); x++)
3298                                 {
3299                                         log(DEBUG,"Servers are: '%s' '%s'",tcp_host,me[j]->connectors[x].GetServerName().c_str());
3300                                         if (!strcasecmp(me[j]->connectors[x].GetServerName().c_str(),tcp_host))
3301                                         {
3302                                                 if ((me[j]->connectors[x].GetState() == STATE_CONNECTED) || (me[j]->connectors[x].GetState() == STATE_SERVICES))
3303                                                 {
3304                                                         // found a valid ircd_connector.
3305                                                         process_restricted_commands(token,params,me[j],serv,tcp_host,me[j]->connectors[x].GetServerIP(),me[j]->connectors[x].GetServerPort());
3306                                                         return;
3307                                                 }
3308                                         }
3309                                 }
3310                         }
3311                 }
3312
3313                 log(DEBUG,"Unrecognised token or unauthenticated host in datagram from %s: %c",tcp_host,token);
3314         }
3315 }
3316
3317 long duration(const char* str)
3318 {
3319         char n_field[MAXBUF];
3320         long total = 0;
3321         const char* str_end = str + strlen(str);
3322         n_field[0] = 0;
3323
3324         for (char* i = (char*)str; i < str_end; i++)
3325         {
3326                 // if we have digits, build up a string for the value in n_field,
3327                 // up to 10 digits in size.
3328                 if ((*i >= '0') && (*i <= '9'))
3329                 {
3330                         strlcat(n_field,i,10);
3331                 }
3332                 else
3333                 {
3334                         // we dont have a digit, check for numeric tokens
3335                         switch (tolower(*i))
3336                         {
3337                                 case 's':
3338                                         total += atoi(n_field);
3339                                 break;
3340
3341                                 case 'm':
3342                                         total += (atoi(n_field)*duration_m);
3343                                 break;
3344
3345                                 case 'h':
3346                                         total += (atoi(n_field)*duration_h);
3347                                 break;
3348
3349                                 case 'd':
3350                                         total += (atoi(n_field)*duration_d);
3351                                 break;
3352
3353                                 case 'w':
3354                                         total += (atoi(n_field)*duration_w);
3355                                 break;
3356
3357                                 case 'y':
3358                                         total += (atoi(n_field)*duration_y);
3359                                 break;
3360                         }
3361                         n_field[0] = 0;
3362                 }
3363         }
3364         // add trailing seconds
3365         total += atoi(n_field);
3366
3367         return total;
3368 }
3369
3370
3371 void handle_kline(char **parameters, int pcnt, userrec *user)
3372 {
3373         if (pcnt >= 3)
3374         {
3375                 add_kline(duration(parameters[1]),user->nick,parameters[2],parameters[0]);
3376                 if (!duration(parameters[1]))
3377                 {
3378                         WriteOpers("*** %s added permenant K-line for %s.",user->nick,parameters[0]);
3379                 }
3380                 else
3381                 {
3382                         WriteOpers("*** %s added timed K-line for %s, expires in %d seconds.",user->nick,parameters[0],duration(parameters[1]));
3383                 }
3384         }
3385         else
3386         {
3387                 if (del_kline(parameters[0]))
3388                 {
3389                         WriteOpers("*** %s Removed K-line on %s.",user->nick,parameters[0]);
3390                 }
3391                 else
3392                 {
3393                         WriteServ(user->fd,"NOTICE %s :*** K-Line %s not found in list, try /stats k.",user->nick,parameters[0]);
3394                 }
3395         }
3396         apply_lines();
3397 }
3398
3399 void handle_eline(char **parameters, int pcnt, userrec *user)
3400 {
3401         if (pcnt >= 3)
3402         {
3403                 add_eline(duration(parameters[1]),user->nick,parameters[2],parameters[0]);
3404                 if (!duration(parameters[1]))
3405                 {
3406                         WriteOpers("*** %s added permenant E-line for %s.",user->nick,parameters[0]);
3407                 }
3408                 else
3409                 {
3410                         WriteOpers("*** %s added timed E-line for %s, expires in %d seconds.",user->nick,parameters[0],duration(parameters[1]));
3411                 }
3412         }
3413         else
3414         {
3415                 if (del_eline(parameters[0]))
3416                 {
3417                         WriteOpers("*** %s Removed E-line on %s.",user->nick,parameters[0]);
3418                 }
3419                 else
3420                 {
3421                         WriteServ(user->fd,"NOTICE %s :*** E-Line %s not found in list, try /stats e.",user->nick,parameters[0]);
3422                 }
3423         }
3424         // no need to apply the lines for an eline
3425 }
3426
3427 void handle_gline(char **parameters, int pcnt, userrec *user)
3428 {
3429         char netdata[MAXBUF];
3430         if (pcnt >= 3)
3431         {
3432                 add_gline(duration(parameters[1]),user->nick,parameters[2],parameters[0]);
3433                 // # <mask> <who-set-it> <time-set> <duration> :<reason>
3434                 snprintf(netdata,MAXBUF,"# %s %s %lu %lu :%s",parameters[0],user->nick,(unsigned long)TIME,(unsigned long)duration(parameters[1]),parameters[2]);
3435                 NetSendToAll(netdata);
3436                 if (!duration(parameters[1]))
3437                 {
3438                         WriteOpers("*** %s added permenant G-line for %s.",user->nick,parameters[0]);
3439                 }
3440                 else
3441                 {
3442                         WriteOpers("*** %s added timed G-line for %s, expires in %d seconds.",user->nick,parameters[0],duration(parameters[1]));
3443                 }
3444         }
3445         else
3446         {
3447                 if (del_gline(parameters[0]))
3448                 {
3449                         // . <mask> <who-removed-it>
3450                         snprintf(netdata,MAXBUF,". %s %s",parameters[0],user->nick);
3451                         WriteOpers("*** %s Removed G-line on %s.",user->nick,parameters[0]);
3452                 }
3453                 else
3454                 {
3455                         WriteServ(user->fd,"NOTICE %s :*** G-Line %s not found in list, try /stats g.",user->nick,parameters[0]);
3456                 }
3457         }
3458         apply_lines();
3459 }
3460
3461 void handle_zline(char **parameters, int pcnt, userrec *user)
3462 {
3463         if (pcnt >= 3)
3464         {
3465                 add_zline(duration(parameters[1]),user->nick,parameters[2],parameters[0]);
3466                 if (!duration(parameters[1]))
3467                 {
3468                         WriteOpers("*** %s added permenant Z-line for %s.",user->nick,parameters[0]);
3469                 }
3470                 else
3471                 {
3472                         WriteOpers("*** %s added timed Z-line for %s, expires in %d seconds.",user->nick,parameters[0],duration(parameters[1]));
3473                 }
3474         }
3475         else
3476         {
3477                 if (del_zline(parameters[0]))
3478                 {
3479                         WriteOpers("*** %s Removed Z-line on %s.",user->nick,parameters[0]);
3480                 }
3481                 else
3482                 {
3483                         WriteServ(user->fd,"NOTICE %s :*** Z-Line %s not found in list, try /stats Z.",user->nick,parameters[0]);
3484                 }
3485         }
3486         apply_lines();
3487 }
3488
3489 void handle_qline(char **parameters, int pcnt, userrec *user)
3490 {
3491         if (pcnt >= 3)
3492         {
3493                 add_qline(duration(parameters[1]),user->nick,parameters[2],parameters[0]);
3494                 if (!duration(parameters[1]))
3495                 {
3496                         WriteOpers("*** %s added permenant Q-line for %s.",user->nick,parameters[0]);
3497                 }
3498                 else
3499                 {
3500                         WriteOpers("*** %s added timed Q-line for %s, expires in %d seconds.",user->nick,parameters[0],duration(parameters[1]));
3501                 }
3502         }
3503         else
3504         {
3505                 if (del_qline(parameters[0]))
3506                 {
3507                         WriteOpers("*** %s Removed Q-line on %s.",user->nick,parameters[0]);
3508                 }
3509                 else
3510                 {
3511                         WriteServ(user->fd,"NOTICE %s :*** Q-Line %s not found in list, try /stats k.",user->nick,parameters[0]);
3512                 }
3513         }
3514         apply_lines();
3515 }
3516
3517