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("*",parameters[0]))
1542                 {
1543                         WriteServ(user->fd,"NOTICE %s :*** You cannot issue an SQUIT this wide! If this is REALLY what you want, use a less wide mask.",user->nick);
1544                         WriteOpers("*** WARNING! %s tried to SQUIT all servers at once!",user->nick);
1545                         return;
1546                 }
1547                 if (!strcasecmp(ServerName,parameters[0]))
1548                 {
1549                         WriteServ(user->fd,"NOTICE %s :*** To take the local server out of the mesh, just use /SQUIT with no parameters instead.",user->nick);
1550                         return;
1551                 }
1552                 bool have_this_server = true;
1553                 int n_count = 0;
1554                 while (have_this_server)
1555                 {
1556                         have_this_server = false;
1557                         for (int j = 0; j < 32; j++)
1558                         {
1559                                 if (me[j] != NULL)
1560                                 {
1561                                         for (int x = 0; x < me[j]->connectors.size(); x++)
1562                                         {
1563                                                 if (match(me[j]->connectors[x].GetServerName().c_str(),parameters[0]))
1564                                                 {
1565                                                         // found a valid ircd_connector.
1566                                                         have_this_server = true;
1567                                                         break;
1568                                                 }
1569                                         }
1570                                 }
1571                         }
1572                         if (have_this_server)
1573                         {
1574                                 WriteOpers("SQUIT command issued by %s to remove %s from the mesh",user->nick,parameters[0]);
1575                                 WriteServ(user->fd,"NOTICE %s :*** Removing remote server %s.",user->nick,parameters[0]);
1576                                 char buffer[MAXBUF];
1577                                 snprintf(buffer,MAXBUF,"& %s",parameters[0]);
1578                                 NetSendToAll(buffer);
1579                                 DoSplit(parameters[0]);
1580                                 n_count++;
1581                         }
1582                 }
1583                 if (!n_count)
1584                 {
1585                         WriteServ(user->fd,"402 %s %s :Your pattern did not match any servers.",user->nick,parameters[0]);
1586                 }
1587         }
1588 }
1589
1590 void handle_links(char **parameters, int pcnt, userrec *user)
1591 {
1592         WriteServ(user->fd,"364 %s %s %s :0 %s",user->nick,ServerName,ServerName,ServerDesc);
1593         for (int j = 0; j < 32; j++)
1594         {
1595                 if (me[j] != NULL)
1596                 {
1597                         for (int k = 0; k < me[j]->connectors.size(); k++)
1598                         {
1599                                 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());
1600                         }
1601                 }
1602         }
1603         WriteServ(user->fd,"365 %s * :End of /LINKS list.",user->nick);
1604 }
1605
1606 void handle_map(char **parameters, int pcnt, userrec *user)
1607 {
1608         char line[MAXBUF];
1609         snprintf(line,MAXBUF,"006 %s :%s",user->nick,ServerName);
1610         while (strlen(line) < 50)
1611                 strcat(line," ");
1612         WriteServ(user->fd,"%s%d (%.2f%%)",line,local_count(),(float)(((float)local_count()/(float)registered_usercount())*100));
1613         for (int j = 0; j < 32; j++)
1614         {
1615                 if (me[j] != NULL)
1616                 {
1617                         for (int k = 0; k < me[j]->connectors.size(); k++)
1618                         {
1619                                 snprintf(line,MAXBUF,"006 %s :%c-%s",user->nick,islast(me[j]->connectors[k].GetServerName().c_str()),me[j]->connectors[k].GetServerName().c_str());
1620                                 while (strlen(line) < 50)
1621                                         strcat(line," ");
1622                                 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));
1623                         }
1624                 }
1625         }
1626         WriteServ(user->fd,"007 %s :End of /MAP",user->nick);
1627 }
1628
1629 bool is_uline(const char* server)
1630 {
1631         char ServName[MAXBUF];
1632         for (int i = 0; i < ConfValueEnum("uline",&config_f); i++)
1633         {
1634                 ConfValue("uline","server",i,ServName,&config_f);
1635                 if (!strcasecmp(server,ServName))
1636                 {
1637                         return true;
1638                 }
1639         }
1640         return false;
1641 }
1642 int operstrcmp(char* data,char* input)
1643 {
1644         int MOD_RESULT = 0;
1645         FOREACH_RESULT(OnOperCompare(data,input))
1646         log(DEBUG,"operstrcmp: %d",MOD_RESULT);
1647         if (MOD_RESULT == 1)
1648                 return 0;
1649         if (MOD_RESULT == -1)
1650                 return 1;
1651         log(DEBUG,"strcmp fallback: '%s' '%s' %d",data,input,strcmp(data,input));
1652         return strcmp(data,input);
1653 }
1654
1655 void handle_oper(char **parameters, int pcnt, userrec *user)
1656 {
1657         char LoginName[MAXBUF];
1658         char Password[MAXBUF];
1659         char OperType[MAXBUF];
1660         char TypeName[MAXBUF];
1661         char HostName[MAXBUF];
1662         char TheHost[MAXBUF];
1663         int j;
1664         bool found = false;
1665         bool fail2 = false;
1666         char global[MAXBUF];
1667
1668         snprintf(TheHost,MAXBUF,"%s@%s",user->ident,user->host);
1669
1670         for (int i = 0; i < ConfValueEnum("oper",&config_f); i++)
1671         {
1672                 ConfValue("oper","name",i,LoginName,&config_f);
1673                 ConfValue("oper","password",i,Password,&config_f);
1674                 ConfValue("oper","type",i,OperType,&config_f);
1675                 ConfValue("oper","host",i,HostName,&config_f);
1676                 if ((!strcmp(LoginName,parameters[0])) && (!operstrcmp(Password,parameters[1])) && (match(TheHost,HostName)))
1677                 {
1678                         fail2 = true;
1679                         for (j =0; j < ConfValueEnum("type",&config_f); j++)
1680                         {
1681                                 ConfValue("type","name",j,TypeName,&config_f);
1682
1683                                 if (!strcmp(TypeName,OperType))
1684                                 {
1685                                         /* found this oper's opertype */
1686                                         snprintf(global,MAXBUF,"| %s %s",user->nick,TypeName);
1687                                         NetSendToAll(global);
1688                                         ConfValue("type","host",j,HostName,&config_f);
1689                                         ChangeDisplayedHost(user,HostName);
1690                                         strlcpy(user->oper,TypeName,NICKMAX);
1691                                         found = true;
1692                                         fail2 = false;
1693                                         break;
1694                                 }
1695                         }
1696                 }
1697                 if (found)
1698                         break;
1699         }
1700         if (found)
1701         {
1702                 /* correct oper credentials */
1703                 WriteOpers("*** %s (%s@%s) is now an IRC operator of type %s",user->nick,user->ident,user->host,OperType);
1704                 WriteServ(user->fd,"381 %s :You are now an IRC operator of type %s",user->nick,OperType);
1705                 if (!strchr(user->modes,'o'))
1706                 {
1707                         strcat(user->modes,"o");
1708                         WriteServ(user->fd,"MODE %s :+o",user->nick);
1709                         snprintf(global,MAXBUF,"M %s +o",user->nick);
1710                         NetSendToAll(global);
1711                         FOREACH_MOD OnOper(user);
1712                         log(DEFAULT,"OPER: %s!%s@%s opered as type: %s",user->nick,user->ident,user->host,OperType);
1713                         AddOper(user);
1714                 }
1715         }
1716         else
1717         {
1718                 if (!fail2)
1719                 {
1720                         WriteServ(user->fd,"491 %s :Invalid oper credentials",user->nick);
1721                         WriteOpers("*** WARNING! Failed oper attempt by %s!%s@%s!",user->nick,user->ident,user->host);
1722                         log(DEFAULT,"OPER: Failed oper attempt by %s!%s@%s: user, host or password did not match.",user->nick,user->ident,user->host);
1723                 }
1724                 else
1725                 {
1726                         WriteServ(user->fd,"491 %s :Your oper block does not have a valid opertype associated with it",user->nick);
1727                         WriteOpers("*** CONFIGURATION ERROR! Oper block mismatch for OperType %s",OperType);
1728                         log(DEFAULT,"OPER: Failed oper attempt by %s!%s@%s: credentials valid, but oper type nonexistent.",user->nick,user->ident,user->host);
1729                 }
1730         }
1731         return;
1732 }
1733
1734 void handle_nick(char **parameters, int pcnt, userrec *user)
1735 {
1736         if (pcnt < 1)
1737         {
1738                 log(DEBUG,"not enough params for handle_nick");
1739                 return;
1740         }
1741         if (!parameters[0])
1742         {
1743                 log(DEBUG,"invalid parameter passed to handle_nick");
1744                 return;
1745         }
1746         if (!parameters[0][0])
1747         {
1748                 log(DEBUG,"zero length new nick passed to handle_nick");
1749                 return;
1750         }
1751         if (!user)
1752         {
1753                 log(DEBUG,"invalid user passed to handle_nick");
1754                 return;
1755         }
1756         if (!user->nick)
1757         {
1758                 log(DEBUG,"invalid old nick passed to handle_nick");
1759                 return;
1760         }
1761         if (!strcasecmp(user->nick,parameters[0]))
1762         {
1763                 log(DEBUG,"old nick is new nick, skipping");
1764                 return;
1765         }
1766         else
1767         {
1768                 if (strlen(parameters[0]) > 1)
1769                 {
1770                         if (parameters[0][0] == ':')
1771                         {
1772                                 *parameters[0]++;
1773                         }
1774                 }
1775                 if (matches_qline(parameters[0]))
1776                 {
1777                         WriteOpers("*** Q-Lined nickname %s from %s!%s@%s: %s",parameters[0],user->nick,user->ident,user->host,matches_qline(parameters[0]));
1778                         WriteServ(user->fd,"432 %s %s :Invalid nickname: %s",user->nick,parameters[0],matches_qline(parameters[0]));
1779                         return;
1780                 }
1781                 if ((Find(parameters[0])) && (Find(parameters[0]) != user))
1782                 {
1783                         WriteServ(user->fd,"433 %s %s :Nickname is already in use.",user->nick,parameters[0]);
1784                         return;
1785                 }
1786         }
1787         if (isnick(parameters[0]) == 0)
1788         {
1789                 WriteServ(user->fd,"432 %s %s :Erroneous Nickname",user->nick,parameters[0]);
1790                 return;
1791         }
1792
1793         if (user->registered == 7)
1794         {
1795                 int MOD_RESULT = 0;
1796                 FOREACH_RESULT(OnUserPreNick(user,parameters[0]));
1797                 if (MOD_RESULT) {
1798                         // if a module returns true, the nick change is silently forbidden.
1799                         return;
1800                 }
1801
1802                 WriteCommon(user,"NICK %s",parameters[0]);
1803
1804                 // N token must go to ALL servers!!!
1805                 char buffer[MAXBUF];
1806                 snprintf(buffer,MAXBUF,"n %s %s",user->nick,parameters[0]);
1807                 NetSendToAll(buffer);
1808         }
1809
1810         char oldnick[NICKMAX];
1811         strlcpy(oldnick,user->nick,NICKMAX);
1812
1813         /* change the nick of the user in the users_hash */
1814         user = ReHashNick(user->nick, parameters[0]);
1815         /* actually change the nick within the record */
1816         if (!user) return;
1817         if (!user->nick) return;
1818
1819         strlcpy(user->nick, parameters[0],NICKMAX);
1820
1821         log(DEBUG,"new nick set: %s",user->nick);
1822
1823         if (user->registered < 3)
1824         {
1825                 user->registered = (user->registered | 2);
1826                 // dont attempt to look up the dns until they pick a nick... because otherwise their pointer WILL change
1827                 // and unless we're lucky we'll get a duff one later on.
1828                 user->dns_done = (!lookup_dns(user->nick));
1829                 if (user->dns_done)
1830                         log(DEBUG,"Aborting dns lookup of %s because dns server experienced a failure.",user->nick);
1831         }
1832         if (user->registered == 3)
1833         {
1834                 /* user is registered now, bit 0 = USER command, bit 1 = sent a NICK command */
1835                 FOREACH_MOD OnUserRegister(user);
1836                 ConnectUser(user);
1837         }
1838         if (user->registered == 7)
1839         {
1840                 FOREACH_MOD OnUserPostNick(user,oldnick);
1841         }
1842 }
1843
1844
1845 void handle_v(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
1846 {
1847         char* servername = strtok(params," ");
1848         char* versionstr = strtok(NULL,"\r\n");
1849         ircd_connector* cn = reply->FindHost(servername);
1850         cn->SetVersionString(versionstr);
1851 }
1852
1853 void handle_V(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
1854 {
1855         char* src = strtok(params," ");
1856         char* dest = strtok(NULL," :");
1857         char* text = strtok(NULL,"\r\n");
1858         text++;
1859
1860         userrec* user = Find(src);
1861         if (user)
1862         {
1863                 userrec* dst = Find(dest);
1864
1865                 if (dst)
1866                 {
1867                         WriteTo(user, dst, "NOTICE %s :%s", dst->nick, text);
1868                 }
1869                 else
1870                 {
1871                         chanrec* d = FindChan(dest);
1872                         if (d)
1873                         {
1874                                 ChanExceptSender(d, user, "NOTICE %s :%s", d->name, text);
1875                         }
1876                 }
1877         }
1878
1879 }
1880
1881
1882 void handle_P(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
1883 {
1884         char* src = strtok(params," ");
1885         char* dest = strtok(NULL," :");
1886         char* text = strtok(NULL,"\r\n");
1887         text++;
1888
1889         userrec* user = Find(src);
1890         if (user)
1891         {
1892                 userrec* dst = Find(dest);
1893
1894                 if (dst)
1895                 {
1896                         WriteTo(user, dst, "PRIVMSG %s :%s", dst->nick, text);
1897                 }
1898                 else
1899                 {
1900                         chanrec* d = FindChan(dest);
1901                         if (d)
1902                         {
1903                                 ChanExceptSender(d, user, "PRIVMSG %s :%s", d->name, text);
1904                         }
1905                 }
1906         }
1907
1908 }
1909
1910 void handle_i(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
1911 {
1912         char* nick = strtok(params," ");
1913         char* from = strtok(NULL," ");
1914         char* channel = strtok(NULL," ");
1915         userrec* u = Find(nick);
1916         userrec* user = Find(from);
1917         chanrec* c = FindChan(channel);
1918         if ((c) && (u) && (user))
1919         {
1920                 u->InviteTo(c->name);
1921                 WriteFrom(u->fd,user,"INVITE %s :%s",u->nick,c->name);
1922         }
1923 }
1924
1925 void handle_t(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
1926 {
1927         char* setby = strtok(params," ");
1928         char* channel = strtok(NULL," :");
1929         char* topic = strtok(NULL,"\r\n");
1930         topic++;
1931         userrec* u = Find(setby);
1932         chanrec* c = FindChan(channel);
1933         if ((c) && (u))
1934         {
1935                 WriteChannelLocal(c,u,"TOPIC %s :%s",c->name,topic);
1936                 strlcpy(c->topic,topic,MAXTOPIC);
1937                 strlcpy(c->setby,u->nick,NICKMAX);
1938                 c->topicset = TIME;
1939         }
1940 }
1941
1942
1943 void handle_T(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
1944 {
1945         char* tm = strtok(params," ");
1946         char* setby = strtok(NULL," ");
1947         char* channel = strtok(NULL," :");
1948         char* topic = strtok(NULL,"\r\n");
1949         topic++;
1950         time_t TS = atoi(tm);
1951         chanrec* c = FindChan(channel);
1952         if (c)
1953         {
1954                 // in the case of topics and TS, the *NEWER*
1955                 if (TS <= c->topicset)
1956                 {
1957                         WriteChannelLocal(c,NULL,"TOPIC %s :%s",c->name,topic);
1958                         strlcpy(c->topic,topic,MAXTOPIC);
1959                         strlcpy(c->setby,setby,NICKMAX);
1960                 }
1961         }
1962 }
1963
1964 void handle_M(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
1965 {
1966         char* pars[128];
1967         char original[MAXBUF],target[MAXBUF];
1968         strlcpy(original,params,MAXBUF);
1969         int index = 0;
1970         char* parameter = strtok(params," ");
1971         strlcpy(target,parameter,MAXBUF);
1972         while (parameter)
1973         {
1974                 if (parameter[0] == ':')
1975                         parameter++;
1976                 pars[index++] = parameter;
1977                 parameter = strtok(NULL," ");
1978         }
1979         log(DEBUG,"*** MODE: %s %s",pars[0],pars[1]);
1980         merge_mode(pars,index);
1981         if (FindChan(target))
1982         {
1983                 WriteChannelLocal(FindChan(target), NULL, "MODE %s",original);
1984         }
1985         if (Find(target))
1986         {
1987                 Write(Find(target)->fd,":%s MODE %s",ServerName,original);
1988         }
1989 }
1990
1991 // m is modes set by users only (not servers) valid targets are channels or users.
1992
1993 void handle_m(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
1994 {
1995         // m blah #chatspike +b *!test@*4
1996         char* pars[128];
1997         char original[MAXBUF];
1998         strlcpy(original,params,MAXBUF);
1999
2000         if (!strchr(params,' '))
2001         {
2002                 WriteOpers("WARNING! 'm' token in data stream without any parameters! Something fishy is going on!");
2003                 return;
2004         }
2005
2006         int index = 0;
2007
2008         char* src = strtok(params," ");
2009         userrec* user = Find(src);
2010
2011         if (user)
2012         {
2013                 log(DEBUG,"Found user: %s",user->nick);
2014                 char* parameter = strtok(NULL," ");
2015                 while (parameter)
2016                 {
2017                         pars[index++] = parameter;
2018                         parameter = strtok(NULL," ");
2019                 }
2020
2021                 log(DEBUG,"Calling merge_mode2");
2022                 merge_mode2(pars,index,user);
2023         }
2024 }
2025
2026
2027 void handle_L(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2028 {
2029         char* nick = NULL;
2030         char* channel = NULL;
2031         char* reason = NULL;
2032         log(DEBUG,"L TOKEN PARS: '%s'",params);
2033         if (strstr(params,":#"))
2034         {
2035                 nick = strtok(params," ");
2036                 channel = strtok(NULL,"\r\n");
2037                 channel++;
2038                 reason = "";
2039         }
2040         else
2041         {
2042                 nick = strtok(params," ");
2043                 channel = strtok(NULL," :");
2044                 reason = strtok(NULL,"\r\n");
2045                 reason++;
2046         }
2047         userrec* user = Find(nick);
2048         if ((user) && (channel) && (reason))
2049         {
2050                 if ((!reason) && (*reason != '\0'))
2051                 {
2052                         del_channel(user,channel,reason,true);
2053                 }
2054                 else
2055                 {
2056                         del_channel(user,channel,NULL,true);
2057                 }
2058         }
2059 }
2060
2061 void handle_K(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2062 {
2063         char* src = strtok(params," ");
2064         char* nick = strtok(NULL," :");
2065         char* reason = strtok(NULL,"\r\n");
2066         char kreason[MAXBUF];
2067         reason++;
2068
2069         userrec* u = Find(nick);
2070         userrec* user = Find(src);
2071
2072         if ((user) && (u))
2073         {
2074                 WriteTo(user, u, "KILL %s :%s!%s!%s!%s (%s)", u->nick, source->name, ServerName, user->dhost,user->nick,reason);
2075                 WriteOpers("*** Remote kill from %s by %s: %s!%s@%s (%s)",source->name,user->nick,u->nick,u->ident,u->host,reason);
2076                 snprintf(kreason,MAXBUF,"[%s] Killed (From: '%s' (%s))",source->name,user->nick,reason);
2077                 kill_link(u,kreason);
2078         }
2079 }
2080
2081 void handle_Q(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2082 {
2083         char* nick = strtok(params," :");
2084         char* reason = strtok(NULL,"\r\n");
2085         reason++;
2086
2087         userrec* user = Find(nick);
2088
2089         if (user)
2090         {
2091                 if (strlen(reason)>MAXQUIT)
2092                 {
2093                         reason[MAXQUIT-1] = '\0';
2094                 }
2095
2096
2097                 WriteCommonExcept(user,"QUIT :%s",reason);
2098
2099                 user_hash::iterator iter = clientlist.find(user->nick);
2100
2101                 if (iter != clientlist.end())
2102                 {
2103                         log(DEBUG,"deleting user hash value %d",iter->second);
2104                         clientlist.erase(iter);
2105                 }
2106
2107                 if (user->registered == 7)
2108                 {
2109                         purge_empty_chans(user);
2110                 }
2111                 delete user;
2112         }
2113 }
2114
2115 void handle_n(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2116 {
2117         char* oldnick = strtok(params," ");
2118         char* newnick = strtok(NULL," ");
2119
2120         userrec* user = Find(oldnick);
2121
2122         if (user)
2123         {
2124                 if (is_uline(tcp_host))
2125                 {
2126                         int MOD_RESULT = 0;
2127                         FOREACH_RESULT(OnUserPreNick(user,newnick));
2128                         if (MOD_RESULT) {
2129                                 // if a module returns true, the nick change couldnt be allowed
2130                                 kill_link(user,"Nickname collision");
2131                                 return;
2132                         }
2133                         if (matches_qline(newnick))
2134                         {
2135                                 kill_link(user,"Nickname collision");
2136                                 return;
2137                         }
2138
2139                         // broadcast this because its a services thingy
2140                         char buffer[MAXBUF];
2141                         snprintf(buffer,MAXBUF,"n %s %s",user->nick,newnick);
2142                         NetSendToAllExcept(tcp_host,buffer);
2143                 }
2144                 WriteCommon(user,"NICK %s",newnick);
2145                 user = ReHashNick(user->nick, newnick);
2146                 if (!user) return;
2147                 if (!user->nick) return;
2148                 strlcpy(user->nick, newnick,NICKMAX);
2149                 log(DEBUG,"new nick set: %s",user->nick);
2150         }
2151 }
2152
2153 // k <SOURCE> <DEST> <CHANNEL> :<REASON>
2154 void handle_k(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2155 {
2156         char* src = strtok(params," ");
2157         char* dest = strtok(NULL," ");
2158         char* channel = strtok(NULL," :");
2159         char* reason = strtok(NULL,"\r\n");
2160         reason++;
2161         userrec* s = Find(src);
2162         userrec* d = Find(dest);
2163         chanrec* c = FindChan(channel);
2164         if ((s) && (d) && (c))
2165         {
2166                 kick_channel(s,d,c,reason);
2167                 return;
2168         }
2169         d = Find(channel);
2170         c = FindChan(dest);
2171         if ((s) && (d) && (c))
2172         {
2173                 kick_channel(s,d,c,reason);
2174                 return;
2175         }
2176 }
2177
2178 void handle_AT(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2179 {
2180         char* who = strtok(params," :");
2181         char* text = strtok(NULL,"\r\n");
2182         text++;
2183         userrec* s = Find(who);
2184         if (s)
2185         {
2186                 WriteWallOps(s,true,text);
2187         }
2188 }
2189
2190 void handle_H(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2191 {
2192         log(DEBUG,"Adding ULined server %s to my map",params);
2193         ircd_connector s;
2194         s.SetState(STATE_DISCONNECTED);
2195         s.SetServerName(params);
2196
2197         for (int j = 0; j < 32; j++)
2198         {
2199                 if (me[j] != NULL)
2200                 {
2201                         for (int k = 0; k < me[j]->connectors.size(); k++)
2202                         {
2203                                 if (!strcasecmp(me[j]->connectors[k].GetServerName().c_str(),params))
2204                                 {
2205                                         // dont allow a server to be added twice
2206                                         log(DEBUG,"ULined server %s already in the map!",params);
2207                                         return;
2208                                 }
2209                         }
2210                 }
2211         }
2212
2213         source->connectors.push_back(s);
2214         WriteOpers("Non-Mesh server %s has joined the network",params);
2215 }
2216
2217 void handle_N(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2218 {
2219         char* tm = strtok(params," ");
2220         char* nick = strtok(NULL," ");
2221         char* host = strtok(NULL," ");
2222         char* dhost = strtok(NULL," ");
2223         char* ident = strtok(NULL," ");
2224         char* modes = strtok(NULL," ");
2225         char* ipaddr = strtok(NULL," ");
2226         char* server = strtok(NULL," :");
2227         char* gecos = strtok(NULL,"\r\n");
2228         gecos++;
2229         modes++;
2230         time_t TS = atoi(tm);
2231         user_hash::iterator iter = clientlist.find(nick);
2232         if (iter != clientlist.end())
2233         {
2234                 // nick collision
2235                 WriteOpers("Nickname collision: %s@%s != %s@%s",nick,server,iter->second->nick,iter->second->server);
2236                 char str[MAXBUF];
2237                 snprintf(str,MAXBUF,"Killed (Nick Collision (%s@%s < %s@%s))",nick,server,iter->second->nick,iter->second->server);
2238                 WriteServ(iter->second->fd, "KILL %s :%s",iter->second->nick,str);
2239                 kill_link(iter->second,str);
2240         }
2241         clientlist[nick] = new userrec();
2242         // remote users have an fd of -1. This is so that our Write abstraction
2243         // routines know to route any messages to this record away to whatever server
2244         // theyre on.
2245         clientlist[nick]->fd = -1;
2246         strlcpy(clientlist[nick]->nick, nick,NICKMAX);
2247         strlcpy(clientlist[nick]->host, host,160);
2248         strlcpy(clientlist[nick]->dhost, dhost,160);
2249         strlcpy(clientlist[nick]->server, server,256);
2250         strlcpy(clientlist[nick]->ident, ident,10); // +1 char to compensate for tilde
2251         strlcpy(clientlist[nick]->fullname, gecos,128);
2252         strlcpy(clientlist[nick]->ip,ipaddr,32);
2253         clientlist[nick]->signon = TS;
2254         clientlist[nick]->nping = 0; // this is ignored for a remote user anyway.
2255         clientlist[nick]->lastping = 1;
2256         clientlist[nick]->port = 0; // so is this...
2257         clientlist[nick]->registered = 7; // this however we need to set for them to receive messages and appear online
2258         clientlist[nick]->idle_lastmsg = TIME; // this is unrealiable and wont actually be used locally
2259         for (int i = 0; i < MAXCHANS; i++)
2260         {
2261                 clientlist[nick]->chans[i].channel = NULL;
2262                 clientlist[nick]->chans[i].uc_modes = 0;
2263         }
2264         FOREACH_MOD OnGlobalConnect(clientlist[nick]);
2265         if (strchr(clientlist[nick]->modes,'o'))
2266         {
2267                 FOREACH_MOD OnGlobalOper(clientlist[nick]);
2268         }
2269 }
2270
2271 void handle_F(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2272 {
2273         long tdiff = TIME - atoi(params);
2274         if (tdiff)
2275                 WriteOpers("TS split for %s -> %s: %d",source->name,reply->name,tdiff);
2276 }
2277
2278 void handle_a(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2279 {
2280         char* nick = strtok(params," :");
2281         char* gecos = strtok(NULL,"\r\n");
2282
2283         userrec* user = Find(nick);
2284
2285         if (user)
2286                 strlcpy(user->fullname,gecos,MAXBUF);
2287 }
2288
2289 void handle_b(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2290 {
2291         char* nick = strtok(params," ");
2292         char* host = strtok(NULL," ");
2293
2294         userrec* user = Find(nick);
2295
2296         if (user)
2297                 strlcpy(user->dhost,host,160);
2298 }
2299
2300 void handle_plus(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2301 {
2302         // %s %s %d %d
2303         // + test3.chatspike.net 7010 -2016508415
2304         char* servername = strtok(params," ");
2305         char* ipaddr = strtok(NULL," ");
2306         char* ipport = strtok(NULL," ");
2307         char* cookie = strtok(NULL," ");
2308         log(DEBUG,"*** Connecting back to %s:%d",ipaddr,atoi(ipport));
2309
2310
2311         bool conn_already = false;
2312         for (int i = 0; i < 32; i++)
2313         {
2314                 if (me[i] != NULL)
2315                 {
2316                         for (int j = 0; j < me[i]->connectors.size(); j++)
2317                         {
2318                                 if (!strcasecmp(me[i]->connectors[j].GetServerName().c_str(),servername))
2319                                 {
2320                                         if (me[i]->connectors[j].GetServerPort() == atoi(ipport))
2321                                         {
2322                                                 log(DEBUG,"Already got a connection to %s:%d, ignoring +",ipaddr,atoi(ipport));
2323                                                 conn_already = true;
2324                                         }
2325                                 }
2326                         }
2327                 }
2328         }
2329         if (!conn_already)
2330                 me[defaultRoute]->MeshCookie(ipaddr,atoi(ipport),atoi(cookie),servername);
2331 }
2332
2333 void handle_R(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2334 {
2335         char* server = strtok(params," ");
2336         char* data = strtok(NULL,"\r\n");
2337         if ((!data) || (!server))
2338         {
2339                 log(DEBUG,"Someones playing silly buggers, attempting to send to a null server or send a null message (BUG?)");
2340                 return;
2341         }
2342
2343         log(DEBUG,"Forwarded packet '%s' to '%s'",data,server);
2344         NetSendToOne(server,data);
2345 }
2346
2347 void handle_J(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2348 {
2349         // IMPORTANT NOTE
2350         // The J token currently has no timestamp - this needs looking at
2351         // because it will allow splitriding.
2352         char* nick = strtok(params," ");
2353         char* channel = strtok(NULL," ");
2354         userrec* user = Find(nick);
2355         while (channel)
2356         {
2357                 if ((user != NULL) && (strcmp(channel,"")))
2358                 {
2359                         char privilage = '\0';
2360                         if (channel[0] != '#')
2361                         {
2362                                 privilage = channel[0];
2363                                 channel++;
2364                         }
2365                         add_channel(user,channel,"",true);
2366
2367                         // now work out the privilages they should have on each channel
2368                         // and send the appropriate servermodes.
2369                         for (int i = 0; i != MAXCHANS; i++)
2370                         {
2371                                 if (user->chans[i].channel)
2372                                 {
2373                                         if (!strcasecmp(user->chans[i].channel->name,channel))
2374                                         {
2375                                                 if (privilage == '@')
2376                                                 {
2377                                                         user->chans[i].uc_modes = user->chans[i].uc_modes | UCMODE_OP;
2378                                                         WriteChannelLocal(user->chans[i].channel, NULL, "MODE %s +o %s",channel,user->nick);
2379                                                 }
2380                                                 if (privilage == '%')
2381                                                 {
2382                                                         user->chans[i].uc_modes = user->chans[i].uc_modes | UCMODE_HOP;
2383                                                         WriteChannelLocal(user->chans[i].channel, NULL, "MODE %s +h %s",channel,user->nick);
2384                                                 }
2385                                                 if (privilage == '+')
2386                                                 {
2387                                                         user->chans[i].uc_modes = user->chans[i].uc_modes | UCMODE_VOICE;
2388                                                         WriteChannelLocal(user->chans[i].channel, NULL, "MODE %s +v %s",channel,user->nick);
2389                                                 }
2390                                         }
2391                                 }
2392                         }
2393
2394                 }
2395                 channel = strtok(NULL," ");
2396         }
2397 }
2398
2399 void handle_dollar(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2400 {
2401         log(DEBUG,"Storing routing table...");
2402         char* sourceserver = strtok(params," ");
2403         char* server = strtok(NULL," ");
2404         for (int i = 0; i < 32; i++)
2405         {
2406                 if (me[i] != NULL)
2407                 {
2408                         for (int j = 0; j < me[i]->connectors.size(); j++)
2409                         {
2410                                 if (!strcasecmp(me[i]->connectors[j].GetServerName().c_str(),sourceserver))
2411                                 {
2412                                         me[i]->connectors[j].routes.clear();
2413                                         log(DEBUG,"Found entry for source server.");
2414                                         while (server)
2415                                         {
2416                                                 // store each route
2417                                                 me[i]->connectors[j].routes.push_back(server);
2418                                                 log(DEBUG,"*** Stored route: %s -> %s -> %s",ServerName,sourceserver,server);
2419                                                 server = strtok(NULL," ");
2420                                         }
2421                                         return;
2422                                 }
2423                         }
2424                 }
2425         }
2426         log(DEBUG,"Warning! routing table received from nonexistent server!");
2427 }
2428
2429 void handle_amp(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2430 {
2431         log(DEBUG,"Netsplit! %s split from mesh, removing!",params);
2432         WriteOpers("*** NOTICE - Controlled netsplit: %s split from %s",params,ServerName);
2433         bool go_again = true;
2434         while (go_again)
2435         {
2436                 go_again = false;
2437                 for (int i = 0; i < 32; i++)
2438                 {
2439                         if (me[i] != NULL)
2440                         {
2441                                 for (vector<ircd_connector>::iterator j = me[i]->connectors.begin(); j != me[i]->connectors.end(); j++)
2442                                 {
2443                                         if (!strcasecmp(j->GetServerName().c_str(),params))
2444                                         {
2445                                                 j->routes.clear();
2446                                                 j->CloseConnection();
2447                                                 me[i]->connectors.erase(j);
2448                                                 go_again = true;
2449                                                 break;
2450                                         }
2451                                 }
2452                         }
2453                 }
2454         }
2455         log(DEBUG,"Removed server. Will remove clients...");
2456         // iterate through the userlist and remove all users on this server.
2457         // because we're dealing with a mesh, we dont have to deal with anything
2458         // "down-route" from this server (nice huh)
2459         go_again = true;
2460         char reason[MAXBUF];
2461         snprintf(reason,MAXBUF,"%s %s",ServerName,params);
2462         while (go_again)
2463         {
2464                 go_again = false;
2465                 for (user_hash::const_iterator u = clientlist.begin(); u != clientlist.end(); u++)
2466                 {
2467                         if (!strcasecmp(u->second->server,params))
2468                         {
2469                                 kill_link(u->second,reason);
2470                                 go_again = true;
2471                                 break;
2472                         }
2473                 }
2474         }
2475 }
2476
2477 unsigned long authcookie;
2478
2479 void handle_hash(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2480 {
2481         // # <mask> <who-set-it> <time-set> <duration> :<reason>
2482         log(DEBUG,"Adding G-line");
2483         char* mask = strtok(params," ");
2484         char* who = strtok(NULL," ");
2485         char* create_time = strtok(NULL," ");
2486         char* duration = strtok(NULL," :");
2487         char* reason = strtok(NULL,"\r\n");
2488         reason++;
2489         add_gline(atoi(duration),(const char*)who,(const char*)reason,(const char*)mask);
2490         // we must update the creation time on this gline
2491         // now that we've added it, or it wont expire at the right time.
2492         gline_set_creation_time(mask,atoi(create_time));
2493         if (!atoi(duration))
2494         {
2495                 WriteOpers("*** %s Added permenant G-Line on %s.",who,mask);
2496         }
2497         else
2498         {
2499                 WriteOpers("*** %s Added timed G-Line on %s to expire in %d seconds.",who,mask,atoi(duration));
2500         }
2501         apply_lines();
2502 }
2503
2504 void handle_dot(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2505 {
2506         log(DEBUG,"Removing G-line");
2507         char* mask = strtok(params," ");
2508         char* who = strtok(NULL," ");
2509         if (mask)
2510         {
2511                 if (del_gline((const char*)mask))
2512                 {
2513                         if (who)
2514                         {
2515                                 WriteOpers("*** %s Removed G-line on %s.",who,mask);
2516                         }
2517                 }
2518         }
2519 }
2520
2521 void handle_add_sqline(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2522 {
2523         // { <mask> <who-set-it> <time-set> <duration> :<reason>
2524         log(DEBUG,"Adding Q-line");
2525         char* mask = strtok(params," ");
2526         char* who = strtok(NULL," ");
2527         char* create_time = strtok(NULL," ");
2528         char* duration = strtok(NULL," :");
2529         char* reason = strtok(NULL,"\r\n");
2530         reason++;
2531         add_qline(atoi(duration),(const char*)who,(const char*)reason,(const char*)mask);
2532         // we must update the creation time on this gline
2533         // now that we've added it, or it wont expire at the right time.
2534         qline_set_creation_time(mask,atoi(create_time));
2535         qline_make_global(mask);
2536         if (!atoi(duration))
2537         {
2538                 WriteOpers("*** %s Added permenant Q-Line on %s.",who,mask);
2539         }
2540         else
2541         {
2542                 WriteOpers("*** %s Added timed Q-Line on %s to expire in %d seconds.",who,mask,atoi(duration));
2543         }
2544         apply_lines();
2545 }
2546
2547 void handle_del_sqline(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2548 {
2549         log(DEBUG,"Removing Q-line");
2550         char* mask = strtok(params," ");
2551         char* who = strtok(NULL," ");
2552         if (mask)
2553         {
2554                 if (del_qline((const char*)mask))
2555                 {
2556                         if (who)
2557                         {
2558                                 WriteOpers("*** %s Removed Q-line on %s.",who,mask);
2559                         }
2560                 }
2561         }
2562 }
2563
2564 void handle_add_szline(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2565 {
2566         // } <mask> <who-set-it> <time-set> <duration> :<reason>
2567         log(DEBUG,"Adding Z-line");
2568         char* mask = strtok(params," ");
2569         char* who = strtok(NULL," ");
2570         char* create_time = strtok(NULL," ");
2571         char* duration = strtok(NULL," :");
2572         char* reason = strtok(NULL,"\r\n");
2573         reason++;
2574         add_zline(atoi(duration),(const char*)who,(const char*)reason,(const char*)mask);
2575         // we must update the creation time on this gline
2576         // now that we've added it, or it wont expire at the right time.
2577         zline_set_creation_time(mask,atoi(create_time));
2578         zline_make_global(mask);
2579         if (!atoi(duration))
2580         {
2581                 WriteOpers("*** %s Added permenant Z-Line on %s.",who,mask);
2582         }
2583         else
2584         {
2585                 WriteOpers("*** %s Added timed Z-Line on %s to expire in %d seconds.",who,mask,atoi(duration));
2586         }
2587         apply_lines();
2588 }
2589
2590 void handle_del_szline(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2591 {
2592         log(DEBUG,"Removing Z-line");
2593         char* mask = strtok(params," ");
2594         char* who = strtok(NULL," ");
2595         if (mask)
2596         {
2597                 if (del_zline((const char*)mask))
2598                 {
2599                         if (who)
2600                         {
2601                                 WriteOpers("*** %s Removed Q-line on %s.",who,mask);
2602                         }
2603                 }
2604         }
2605 }
2606
2607 void handle_pipe(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2608 {
2609         char* nick = strtok(params," ");
2610         char* type = strtok(params," ");
2611         userrec* u = Find(nick);
2612         if (u)
2613         {
2614                 strlcpy(u->oper,type,NICKMAX);
2615         }
2616 }
2617
2618
2619 void process_restricted_commands(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host,char* ipaddr,int port)
2620 {
2621         char buffer[MAXBUF];
2622         int MOD_RESULT = 0;
2623
2624         switch(token)
2625         {
2626                 // Y <TS>
2627                 // start netburst
2628                 case 'Y':
2629                         nb_start = TIME;
2630                         WriteOpers("Server %s is starting netburst.",tcp_host);
2631                         // now broadcast this new servers address out to all servers that are linked to us,
2632                         // except the newcomer. They'll all attempt to connect back to it.
2633                         authcookie = rand()*rand();
2634                         snprintf(buffer,MAXBUF,"~ %lu",(unsigned long)authcookie);
2635                         NetSendToAll(buffer);
2636                 break;
2637                 // ~
2638                 // Store authcookie
2639                 // once stored, this authcookie permits other servers to log in
2640                 // without user or password, using it.
2641                 case '~':
2642                         auth_cookies.push_back(atoi(params));
2643                         log(DEBUG,"*** Stored auth cookie, will permit servers with auth-cookie %d",atoi(params));
2644                 break;
2645                 // connect back to a server using an authcookie
2646                 case '+':
2647                         handle_plus(token,params,source,reply,tcp_host);
2648                 break;
2649                 // routing table
2650                 case '$':
2651                         handle_dollar(token,params,source,reply,tcp_host);
2652                 break;
2653                 // node unreachable - we cant route to a server, sooooo we slit it off.
2654                 // servers can generate these for themselves for an squit.
2655                 case '&':
2656                         handle_amp(token,params,source,reply,tcp_host);
2657                 break;
2658                 // R <server> <data>
2659                 // redirect token, send all of <data> along to the given
2660                 // server as this server has been found to still have a route to it
2661                 case 'R':
2662                         handle_R(token,params,source,reply,tcp_host);
2663                 break;
2664                 // ?
2665                 // ping
2666                 case '?':
2667                         reply->SendPacket("!",tcp_host);
2668                 break;
2669                 // ?
2670                 // pong
2671                 case '!':
2672                 break;
2673                 // *
2674                 // no operation
2675                 case '*':
2676                 break;
2677                 // N <TS> <NICK> <HOST> <DHOST> <IDENT> <MODES> <SERVER> :<GECOS>
2678                 // introduce remote client
2679                 case 'N':
2680                         handle_N(token,params,source,reply,tcp_host);
2681                 break;
2682                 // a <NICK> :<GECOS>
2683                 // change GECOS (SETNAME)
2684                 case 'a':
2685                         handle_a(token,params,source,reply,tcp_host);
2686                 break;
2687                 // b <NICK> :<HOST>
2688                 // change displayed host (SETHOST)
2689                 case 'b':
2690                         handle_b(token,params,source,reply,tcp_host);
2691                 break;
2692                 // t <NICK> <CHANNEL> :<TOPIC>
2693                 // change a channel topic
2694                 case 't':
2695                         handle_t(token,params,source,reply,tcp_host);
2696                 break;
2697                 // i <NICK> <CHANNEL>
2698                 // invite a user to a channel
2699                 case 'i':
2700                         handle_i(token,params,source,reply,tcp_host);
2701                 break;
2702                 // k <SOURCE> <DEST> <CHANNEL> :<REASON>
2703                 // kick a user from a channel
2704                 case 'k':
2705                         handle_k(token,params,source,reply,tcp_host);
2706                 break;
2707                 // n <NICK> <NEWNICK>
2708                 // change nickname of client -- a server should only be able to
2709                 // change the nicknames of clients that reside on it unless
2710                 // they are ulined.
2711                 case 'n':
2712                         handle_n(token,params,source,reply,tcp_host);
2713                 break;
2714                 // J <NICK> <CHANLIST>
2715                 // Join user to channel list, merge channel permissions
2716                 case 'J':
2717                         handle_J(token,params,source,reply,tcp_host);
2718                 break;
2719                 // T <TS> <CHANNEL> <TOPICSETTER> :<TOPIC>
2720                 // change channel topic (netburst only)
2721                 case 'T':
2722                         handle_T(token,params,source,reply,tcp_host);
2723                 break;
2724                 // M <TARGET> <MODES> [MODE-PARAMETERS]
2725                 // Server setting modes on an object
2726                 case 'M':
2727                         handle_M(token,params,source,reply,tcp_host);
2728                 break;
2729                 // m <SOURCE> <TARGET> <MODES> [MODE-PARAMETERS]
2730                 // User setting modes on an object
2731                 case 'm':
2732                         handle_m(token,params,source,reply,tcp_host);
2733                 break;
2734                 // P <SOURCE> <TARGET> :<TEXT>
2735                 // Send a private/channel message
2736                 case 'P':
2737                         handle_P(token,params,source,reply,tcp_host);
2738                 break;
2739                 // V <SOURCE> <TARGET> :<TEXT>
2740                 // Send a private/channel notice
2741                 case 'V':
2742                         handle_V(token,params,source,reply,tcp_host);
2743                 break;
2744                 // v <servername> <arbitary version string>
2745                 case 'v':
2746                         handle_v(token,params,source,reply,tcp_host);
2747                 break;
2748                 // L <SOURCE> <CHANNEL> :<REASON>
2749                 // User parting a channel
2750                 case 'L':
2751                         handle_L(token,params,source,reply,tcp_host);
2752                 break;
2753                 // Q <SOURCE> :<REASON>
2754                 // user quitting
2755                 case 'Q':
2756                         handle_Q(token,params,source,reply,tcp_host);
2757                 break;
2758                 // H <SERVER>
2759                 // introduce non-meshable server (such as a services server)
2760                 case 'H':
2761                         handle_H(token,params,source,reply,tcp_host);
2762                 break;
2763                 // K <SOURCE> <DEST> :<REASON>
2764                 // remote kill
2765                 case 'K':
2766                         handle_K(token,params,source,reply,tcp_host);
2767                 break;
2768                 // @ <SOURCE> :<TEXT>
2769                 // wallops
2770                 case '@':
2771                         handle_AT(token,params,source,reply,tcp_host);
2772                 break;
2773                 // # <mask> <who-set-it> <time-set> <duration> :<reason>
2774                 // add gline
2775                 case '#':
2776                         handle_hash(token,params,source,reply,tcp_host);
2777                 break;
2778                 // . <mask> <who>
2779                 // remove gline
2780                 case '.':
2781                         handle_dot(token,params,source,reply,tcp_host);
2782                 break;
2783                 // # <mask> <who-set-it> <time-set> <duration> :<reason>
2784                 // add gline
2785                 case '{':
2786                         handle_add_sqline(token,params,source,reply,tcp_host);
2787                 break;
2788                 // . <mask> <who>
2789                 // remove gline
2790                 case '[':
2791                         handle_del_sqline(token,params,source,reply,tcp_host);
2792                 break;
2793                 // # <mask> <who-set-it> <time-set> <duration> :<reason>
2794                 // add gline
2795                 case '}':
2796                         handle_add_szline(token,params,source,reply,tcp_host);
2797                 break;
2798                 // . <mask> <who>
2799                 // remove gline
2800                 case ']':
2801                         handle_del_szline(token,params,source,reply,tcp_host);
2802                 break;
2803                 // | <nick> <opertype>
2804                 // set opertype
2805                 case '|':
2806                         handle_pipe(token,params,source,reply,tcp_host);
2807                 break;
2808                 // F <TS>
2809                 // end netburst
2810                 case 'F':
2811                         WriteOpers("Server %s has completed netburst. (%d secs)",tcp_host,TIME-nb_start);
2812                         handle_F(token,params,source,reply,tcp_host);
2813                         nb_start = 0;
2814                         // tell all the other servers to use this authcookie to connect back again
2815                         // got '+ test3.chatspike.net 7010 -2016508415' from test.chatspike.net
2816                         snprintf(buffer,MAXBUF,"+ %s %s %d %lu",tcp_host,ipaddr,port,(unsigned long)authcookie);
2817                         NetSendToAllExcept(tcp_host,buffer);
2818                 break;
2819                 case '/':
2820                         WriteOpers("Server %s is IRCServices-based server (assumes-SVSMODE) - Nickname Services: %s",tcp_host,params);
2821                         strlcpy(source->nickserv,params,NICKMAX);
2822                 break;
2823                 // F <TS>
2824                 // end netburst with no mesh creation
2825                 case 'f':
2826                         WriteOpers("Server %s has completed netburst. (%d secs)",tcp_host,TIME-nb_start);
2827                         handle_F(token,params,source,reply,tcp_host);
2828                         nb_start = 0;
2829                         // tell everyone else about the new server name so they just add it in the disconnected
2830                         // state
2831                         snprintf(buffer,MAXBUF,"u %s :%s",tcp_host,GetServerDescription(tcp_host).c_str());
2832                         NetSendToAllExcept(tcp_host,buffer);
2833                 break;
2834                 // X <reserved>
2835                 // Send netburst now
2836                 case 'X':
2837                         WriteOpers("Sending my netburst to %s",tcp_host);
2838                         DoSync(source,tcp_host);
2839                         WriteOpers("Send of netburst to %s completed",tcp_host);
2840                         NetSendMyRoutingTable();
2841                 break;
2842                 // anything else
2843                 default:
2844                         MOD_RESULT = 0;
2845                         string_list s;
2846                         char* data = strtok(params," ");
2847                         while (data)
2848                         {
2849                                 if (*data == ':')
2850                                 {
2851                                         // the last item is a special case
2852                                         data++;
2853                                         char datalast[MAXBUF];
2854                                         strlcpy(datalast,data,MAXBUF);
2855                                         data = strtok(NULL," ");
2856                                         while (data)
2857                                         {
2858                                                 strlcpy(datalast," ",MAXBUF);
2859                                                 strlcpy(datalast,data,MAXBUF);
2860                                                 data = strtok(NULL," ");
2861                                         }
2862                                         s.push_back(data);
2863                                         break;
2864                                 }
2865                                 s.push_back(data);
2866                                 data = strtok(NULL," ");
2867                         }
2868                         FOREACH_RESULT(OnMeshToken(token,s,source,reply,tcp_host,ipaddr,port));
2869                         if (!MOD_RESULT)
2870                                 WriteOpers("WARNING! Unknown datagram type '%c'",token);
2871                 break;
2872         }
2873 }
2874
2875
2876 void handle_link_packet(char* udp_msg, char* tcp_host, serverrec *serv)
2877 {
2878         if ((!strncmp(udp_msg,"USER ",5)) || (!strncmp(udp_msg,"NICK ",5)) || (!strncmp(udp_msg,"PASS ",5)) || (!strncmp(udp_msg,"SERVER ",7)))
2879         {
2880                 // a user on a server port, just close their connection.
2881                 RemoveServer(tcp_host);
2882                 return;
2883         }
2884
2885         char response[10240];
2886         char token = udp_msg[0];
2887         char* old = udp_msg;
2888
2889         if ((token != ':') && (strlen(udp_msg)>1) && (udp_msg[1] != ' '))
2890         {
2891                 WriteOpers("*** Discarded %d chars illegal data from %s",strlen(udp_msg),tcp_host);
2892         }
2893
2894         if (token == ':') // leading :servername or details - strip them off (services does this, sucky)
2895         {
2896                 char* src = udp_msg+1;
2897                 while (udp_msg[0] != ' ')
2898                         udp_msg++;
2899                 udp_msg[0] = 0;
2900                 udp_msg++;
2901                 char* comd = udp_msg;
2902                 while (udp_msg[0] != ' ')
2903                         udp_msg++;
2904                 udp_msg[0] = 0;
2905                 udp_msg++;
2906                 char data[MAXBUF];
2907                 char source[MAXBUF];
2908                 char command[MAXBUF];
2909                 strlcpy(data,udp_msg,512);
2910                 strlcpy(source,src,MAXBUF);
2911                 strlcpy(command,comd,MAXBUF);
2912                 udp_msg = old;
2913
2914                 // unused numeric:
2915                 // :services-dev.chatspike.net 433 Craig Craig :Nickname is registered to someone else
2916                 if (!strcmp(command,"433"))
2917                 {
2918                         token = '*';
2919                 }
2920                 if (!strcmp(command,"432"))
2921                 {
2922                         token = '*';
2923                 }
2924                 if (!strcmp(command,"PING"))
2925                 {
2926                         token = '*';
2927                 }
2928                 if (!strcmp(command,"NOTICE"))
2929                 {
2930                         snprintf(udp_msg,MAXBUF,"V %s %s",source,data);
2931                         log(DEBUG,"Rewrote NOTICE from services to: '%s'",udp_msg);
2932                         token = udp_msg[0];
2933                 }
2934                 if (!strcmp(command,"QUIT"))
2935                 {
2936                         if ((!udp_msg) || (!strcmp(data,"")) || (strcmp(data,":")))
2937                         {
2938                                 strcpy(data,":No reason");
2939                         }
2940                         if (!strcmp(data,":"))
2941                         {
2942                                 strcpy(data,":No reason");
2943                         }
2944                         snprintf(udp_msg,MAXBUF,"Q %s %s",source,data);
2945                         log(DEBUG,"Rewrote QUIT from services to: '%s'",udp_msg);
2946                         token = udp_msg[0];
2947                 }
2948                 if (!strcmp(command,"SQUIT"))
2949                 {
2950                         snprintf(udp_msg,MAXBUF,"& %s",source);
2951                         log(DEBUG,"Rewrote SQUIT from services to: '%s'",udp_msg);
2952                         token = udp_msg[0];
2953                 }
2954                 if (!strcmp(command,"SVSMODE"))
2955                 {
2956                         snprintf(udp_msg,MAXBUF,"m %s %s",source,data);
2957                         log(DEBUG,"Rewrote SVSMODE from services to: '%s'",udp_msg);
2958                         token = udp_msg[0];
2959                 }
2960                 if (!strcmp(command,"SVS2MODE"))
2961                 {
2962                         snprintf(udp_msg,MAXBUF,"m %s %s",source,data);
2963                         log(DEBUG,"Rewrote SVS2MODE from services to: '%s'",udp_msg);
2964                         token = udp_msg[0];
2965                 }
2966                 // todo: this wont work without u:lines
2967                 // in give_ops etc allow nick on a u:lined serv to do just about anything
2968                 if (!strcmp(command,"MODE"))
2969                 {
2970                         snprintf(udp_msg,MAXBUF,"m %s %s",source,data);
2971                         log(DEBUG,"Rewrote MODE from services to: '%s'",udp_msg);
2972                         token = udp_msg[0];
2973                 }
2974                 if (!strcmp(command,"KICK"))
2975                 {
2976                         snprintf(udp_msg,MAXBUF,"k %s %s",source,data);
2977                         log(DEBUG,"Rewrote KICK from services to: '%s'",udp_msg);
2978                         token = udp_msg[0];
2979                 }
2980                 if (!strcmp(command,"KILL"))
2981                 {
2982                         snprintf(udp_msg,MAXBUF,"K %s %s",source,data);
2983                         log(DEBUG,"Rewrote KILL from services to: '%s'",udp_msg);
2984                         token = udp_msg[0];
2985                 }
2986                 if (!strcmp(command,"SVSJOIN"))
2987                 {
2988                         snprintf(udp_msg,MAXBUF,"J %s",data);
2989                         NetSendToOne(tcp_host,udp_msg);
2990                         char* nick = strtok(data," ");
2991                         char* chan = strtok(NULL," ");
2992                         log(DEBUG,"Rewrote SVSJOIN from services to: '%s'",udp_msg);
2993                         userrec* u = Find(nick);
2994                         if (u)
2995                         {
2996                                 add_channel(u,chan,"",true);
2997                         }
2998                         token = udp_msg[0];
2999                 }
3000
3001         }
3002
3003         char* params = udp_msg + 2;
3004         char finalparam[1024];
3005         strcpy(finalparam," :xxxx");
3006         if (strstr(udp_msg," :")) {
3007                 strlcpy(finalparam,strstr(udp_msg," :"),1024);
3008         }
3009
3010
3011         if (token == '-') {
3012                 char* cookie = strtok(params," ");
3013                 char* servername = strtok(NULL," ");
3014                 char* serverdesc = finalparam+2;
3015
3016                 WriteOpers("AuthCookie CONNECT from %s (%s)",servername,tcp_host);
3017
3018                 for (int u = 0; u < auth_cookies.size(); u++)
3019                 {
3020                         if (auth_cookies[u] == atoi(cookie))
3021                         {
3022                                 WriteOpers("Allowed cookie from %s, is now part of the mesh",servername);
3023
3024
3025                                 for (int j = 0; j < 32; j++)
3026                                 {
3027                                         if (me[j] != NULL)
3028                                         {
3029                                                 for (int k = 0; k < me[j]->connectors.size(); k++)
3030                                                 {
3031                                                         if (!strcasecmp(me[j]->connectors[k].GetServerName().c_str(),tcp_host))
3032                                                         {
3033                                                                 me[j]->connectors[k].SetServerName(servername);
3034                                                                 me[j]->connectors[k].SetDescription(serverdesc);
3035                                                                 me[j]->connectors[k].SetState(STATE_CONNECTED);
3036                                                                 NetSendMyRoutingTable();
3037                                                                 return;
3038                                                         }
3039                                                 }
3040                                         }
3041                                         WriteOpers("\2WARNING!\2 %s sent us an authentication packet but we are not authenticating with this server right now! Possible intrusion attempt!",tcp_host);
3042                                         return;
3043                                 }
3044
3045
3046                                 return;
3047                         }
3048                 }
3049                 // bad cookie, bad bad! go sit in the corner!
3050                 WriteOpers("Bad cookie from %s!",servername);
3051                 return;
3052         }
3053         else
3054         if (token == 'S') {
3055                 // S test.chatspike.net password portn :ChatSpike InspIRCd test server
3056                 char* servername = strtok(params," ");
3057                 char* password = strtok(NULL," ");
3058                 char* myport = strtok(NULL," ");
3059                 char* revision = strtok(NULL," ");
3060                 char* serverdesc = finalparam+2;
3061
3062                 password = password;
3063
3064                 WriteOpers("CONNECT from %s (%s) (their port: %d)",servername,tcp_host,atoi(myport));
3065
3066                 ircd_connector* cn = serv->FindHost(servername);
3067
3068                 if (cn)
3069                 {
3070                         WriteOpers("CONNECT aborted: Server %s already exists from %s",servername,ServerName);
3071                         char buffer[MAXBUF];
3072                         snprintf(buffer,MAXBUF,"E :Server %s already exists!",servername);
3073                         serv->SendPacket(buffer,tcp_host);
3074                         RemoveServer(tcp_host);
3075                         return;
3076                 }
3077
3078                 if (atoi(revision) != GetRevision())
3079                 {
3080                         WriteOpers("CONNECT aborted: Could not link to %s, is an incompatible version %s, our version is %d",servername,revision,GetRevision());
3081                         char buffer[MAXBUF];
3082                         sprintf(buffer,"E :Version number mismatch");
3083                         serv->SendPacket(buffer,tcp_host);
3084                         RemoveServer(tcp_host);
3085                         RemoveServer(servername);
3086                         return;
3087                 }
3088
3089                 for (int j = 0; j < serv->connectors.size(); j++)
3090                 {
3091                         if (!strcasecmp(serv->connectors[j].GetServerName().c_str(),tcp_host))
3092                         {
3093                                 serv->connectors[j].SetServerName(servername);
3094                                 serv->connectors[j].SetDescription(serverdesc);
3095                                 serv->connectors[j].SetServerPort(atoi(myport));
3096                         }
3097                 }
3098
3099
3100                 char Link_ServerName[1024];
3101                 char Link_IPAddr[1024];
3102                 char Link_Port[1024];
3103                 char Link_Pass[1024];
3104                 char Link_SendPass[1024];
3105                 int LinkPort = 0;
3106
3107                 // search for a corresponding <link> block in the config files
3108                 for (int i = 0; i < ConfValueEnum("link",&config_f); i++)
3109                 {
3110                         ConfValue("link","name",i,Link_ServerName,&config_f);
3111                         ConfValue("link","ipaddr",i,Link_IPAddr,&config_f);
3112                         ConfValue("link","port",i,Link_Port,&config_f);
3113                         ConfValue("link","recvpass",i,Link_Pass,&config_f);
3114                         ConfValue("link","sendpass",i,Link_SendPass,&config_f);
3115                         log(DEBUG,"(%d) Comparing against name='%s', ipaddr='%s', port='%s', recvpass='%s'",i,Link_ServerName,Link_IPAddr,Link_Port,Link_Pass);
3116                         LinkPort = atoi(Link_Port);
3117                         if ((!strcasecmp(Link_ServerName,servername)) && (!strcmp(Link_Pass,password)))
3118                         {
3119                                 // we have a matching link line -
3120                                 // send a 'diminutive' server message back...
3121                                 snprintf(response,10240,"s %s %s :%s",ServerName,Link_SendPass,ServerDesc);
3122                                 serv->SendPacket(response,servername);
3123
3124                                 for (int t = 0; t < serv->connectors.size(); t++)
3125                                 {
3126                                         if (!strcasecmp(serv->connectors[t].GetServerName().c_str(),servername))
3127                                         {
3128                                                 serv->connectors[t].SetState(STATE_CONNECTED);
3129                                         }
3130                                 }
3131
3132                                 return;
3133                         }
3134                 }
3135                 char buffer[MAXBUF];
3136                 sprintf(buffer,"E :Access is denied (no matching link block)");
3137                 serv->SendPacket(buffer,tcp_host);
3138                 WriteOpers("CONNECT from %s denied, no matching link block",servername);
3139                 RemoveServer(tcp_host);
3140                 RemoveServer(servername);
3141                 return;
3142         }
3143         else
3144         if (token == 's') {
3145                 // S test.chatspike.net password :ChatSpike InspIRCd test server
3146                 char* servername = strtok(params," ");
3147                 char* password = strtok(NULL," ");
3148                 char* serverdesc = finalparam+2;
3149
3150                 password = password;
3151
3152                 // TODO: we should do a check here to ensure that this server is one we recently initiated a
3153                 // link with, and didnt hear an 's' or 'E' back from yet (these are the only two valid responses
3154                 // to an 'S' command. If we didn't recently send an 'S' to this server, theyre trying to spoof
3155                 // a connect, so put out an oper alert!
3156
3157                 // for now, just accept all, we'll fix that later.
3158                 WriteOpers("%s accepted our link credentials ",servername);
3159
3160                 char Link_ServerName[1024];
3161                 char Link_IPAddr[1024];
3162                 char Link_Port[1024];
3163                 char Link_Pass[1024];
3164                 char Link_SendPass[1024];
3165                 int LinkPort = 0;
3166
3167                 // search for a corresponding <link> block in the config files
3168                 for (int i = 0; i < ConfValueEnum("link",&config_f); i++)
3169                 {
3170                         ConfValue("link","name",i,Link_ServerName,&config_f);
3171                         ConfValue("link","ipaddr",i,Link_IPAddr,&config_f);
3172                         ConfValue("link","port",i,Link_Port,&config_f);
3173                         ConfValue("link","recvpass",i,Link_Pass,&config_f);
3174                         ConfValue("link","sendpass",i,Link_SendPass,&config_f);
3175                         log(DEBUG,"(%d) Comparing against name='%s', ipaddr='%s', port='%s', recvpass='%s'",i,Link_ServerName,Link_IPAddr,Link_Port,Link_Pass);
3176                         LinkPort = atoi(Link_Port);
3177                         if (!strcasecmp(Link_ServerName,servername))
3178                         {
3179                                 // matching link at this end too, we're all done!
3180                                 // at this point we must begin key exchange and insert this
3181                                 // server into our 'active' table.
3182                                 for (int j = 0; j < 32; j++)
3183                                 {
3184                                         if (me[j] != NULL)
3185                                         {
3186                                                 for (int k = 0; k < me[j]->connectors.size(); k++)
3187                                                 {
3188                                                         if (!strcasecmp(me[j]->connectors[k].GetServerName().c_str(),tcp_host))
3189                                                         {
3190                                                                 char buffer[MAXBUF];
3191                                                                 me[j]->connectors[k].SetDescription(serverdesc);
3192                                                                 me[j]->connectors[k].SetState(STATE_CONNECTED);
3193                                                                 sprintf(buffer,"X 0");
3194                                                                 serv->SendPacket(buffer,tcp_host);
3195                                                                 DoSync(me[j],tcp_host);
3196                                                                 NetSendMyRoutingTable();
3197                                                                 return;
3198                                                         }
3199                                                 }
3200                                         }
3201                                 }
3202                         }
3203                         else {
3204                                 log(DEBUG,"Server names '%s' and '%s' don't match",Link_ServerName,servername);
3205                         }
3206                 }
3207                 char buffer[MAXBUF];
3208                 sprintf(buffer,"E :Access is denied (no matching link block)");
3209                 serv->SendPacket(buffer,tcp_host);
3210                 WriteOpers("CONNECT from %s denied, no matching link block",servername);
3211                 RemoveServer(tcp_host);
3212                 RemoveServer(servername);
3213                 return;
3214         }
3215         else
3216         if (token == 'U') {
3217                 // U services.chatspike.net password :ChatSpike Services
3218                 //
3219                 // non-meshed link, used by services. Everything coming from a non-meshed link is auto broadcasted.
3220                 char* servername = strtok(params," ");
3221                 char* password = strtok(NULL," ");
3222                 char* serverdesc = finalparam+2;
3223
3224                 char Link_ServerName[1024];
3225                 char Link_IPAddr[1024];
3226                 char Link_Port[1024];
3227                 char Link_Pass[1024];
3228                 char Link_SendPass[1024];
3229                 int LinkPort = 0;
3230
3231                 log(DEBUG,"U-token linked server detected.\n\nservername='%s' password='%s'\n\n",servername,password);
3232
3233
3234                 for (int j = 0; j < 32; j++)
3235                 {
3236                         if (me[j] != NULL)
3237                         {
3238                                 for (int k = 0; k < me[j]->connectors.size(); k++)
3239                                 {
3240                                         if (!strcasecmp(me[j]->connectors[k].GetServerName().c_str(),servername))
3241                                         {
3242                                                 char buffer[MAXBUF];
3243                                                 sprintf(buffer,"E :Access is denied (Server exists in the mesh)");
3244                                                 serv->SendPacket(buffer,tcp_host);
3245                                                 WriteOpers("CONNECT from %s denied, \"%s\" already exists!",tcp_host,servername);
3246                                                 RemoveServer(tcp_host);
3247                                                 return;
3248                                         }
3249                                 }
3250                         }
3251                 }
3252
3253                 // search for a corresponding <link> block in the config files
3254                 for (int i = 0; i < ConfValueEnum("link",&config_f); i++)
3255                 {
3256                         ConfValue("link","name",i,Link_ServerName,&config_f);
3257                         ConfValue("link","ipaddr",i,Link_IPAddr,&config_f);
3258                         ConfValue("link","port",i,Link_Port,&config_f);
3259                         ConfValue("link","recvpass",i,Link_Pass,&config_f);
3260                         ConfValue("link","sendpass",i,Link_SendPass,&config_f);
3261                         log(DEBUG,"(%d) Comparing against name='%s', ipaddr='%s', port='%s', recvpass='%s'",i,Link_ServerName,Link_IPAddr,Link_Port,Link_Pass);
3262                         LinkPort = atoi(Link_Port);
3263                         if ((!strcasecmp(Link_ServerName,servername)) && (!strcmp(Link_Pass,password)))
3264                         {
3265                                 // matching link at this end too, we're all done!
3266                                 // at this point we must begin key exchange and insert this
3267                                 // server into our 'active' table.
3268                                 for (int j = 0; j < 32; j++)
3269                                 {
3270                                         if (me[j] != NULL)
3271                                         {
3272                                                 for (int k = 0; k < me[j]->connectors.size(); k++)
3273                                                 {
3274                                                         if (!strcasecmp(me[j]->connectors[k].GetServerName().c_str(),tcp_host))
3275                                                         {
3276                                                                 char buffer[MAXBUF];
3277                                                                 log(DEBUG,"Found matching link block");
3278                                                                 me[j]->connectors[k].SetDescription(serverdesc);
3279                                                                 me[j]->connectors[k].SetServerName(servername);
3280                                                                 me[j]->connectors[k].SetState(STATE_SERVICES);
3281                                                                 sprintf(buffer,"X 0");
3282                                                                 serv->SendPacket(buffer,servername);
3283                                                                 sprintf(buffer,"s %s %s %lu :%s",ServerName,Link_SendPass,LinkPort,ServerDesc);
3284                                                                 serv->SendPacket(buffer,servername);
3285                                                                 DoSync(me[j],servername);
3286                                                                 snprintf(buffer,MAXBUF,"H %s",servername);
3287                                                                 NetSendToAllExcept(servername,buffer);
3288                                                                 WriteOpers("Non-Mesh server %s has joined the network",servername);
3289                                                                 log(DEBUG,"******** SENDING MY ROUTING TABLE! *******");
3290                                                                 NetSendMyRoutingTable();
3291                                                                 return;
3292                                                         }
3293                                                 }
3294                                         }
3295                                 }
3296                         }
3297                         else {
3298                                 log(DEBUG,"Server names '%s' and '%s' don't match",Link_ServerName,servername);
3299                         }
3300                 }
3301                 log(DEBUG,"No matching link block found");
3302                 char buffer[MAXBUF];
3303                 sprintf(buffer,"E :Access is denied (no matching link block)");
3304                 serv->SendPacket(buffer,tcp_host);
3305                 WriteOpers("CONNECT from %s denied, no matching link block",servername);
3306                 RemoveServer(tcp_host);
3307                 RemoveServer(servername);
3308                 return;
3309         }
3310         else
3311         if (token == 'E') {
3312                 char* error_message = finalparam+2;
3313                 WriteOpers("ERROR from %s: %s",tcp_host,error_message);
3314                 return;
3315         }
3316         else {
3317                 for (int j = 0; j < 32; j++)
3318                 {
3319                         if (me[j] != NULL)
3320                         {
3321                                 for (int x = 0; x < me[j]->connectors.size(); x++)
3322                                 {
3323                                         log(DEBUG,"Servers are: '%s' '%s'",tcp_host,me[j]->connectors[x].GetServerName().c_str());
3324                                         if (!strcasecmp(me[j]->connectors[x].GetServerName().c_str(),tcp_host))
3325                                         {
3326                                                 if ((me[j]->connectors[x].GetState() == STATE_CONNECTED) || (me[j]->connectors[x].GetState() == STATE_SERVICES))
3327                                                 {
3328                                                         // found a valid ircd_connector.
3329                                                         process_restricted_commands(token,params,me[j],serv,tcp_host,me[j]->connectors[x].GetServerIP(),me[j]->connectors[x].GetServerPort());
3330                                                         return;
3331                                                 }
3332                                         }
3333                                 }
3334                         }
3335                 }
3336
3337                 log(DEBUG,"Unrecognised token or unauthenticated host in datagram from %s: %c",tcp_host,token);
3338         }
3339 }
3340
3341 long duration(const char* str)
3342 {
3343         char n_field[MAXBUF];
3344         long total = 0;
3345         const char* str_end = str + strlen(str);
3346         n_field[0] = 0;
3347
3348         for (char* i = (char*)str; i < str_end; i++)
3349         {
3350                 // if we have digits, build up a string for the value in n_field,
3351                 // up to 10 digits in size.
3352                 if ((*i >= '0') && (*i <= '9'))
3353                 {
3354                         strlcat(n_field,i,10);
3355                 }
3356                 else
3357                 {
3358                         // we dont have a digit, check for numeric tokens
3359                         switch (tolower(*i))
3360                         {
3361                                 case 's':
3362                                         total += atoi(n_field);
3363                                 break;
3364
3365                                 case 'm':
3366                                         total += (atoi(n_field)*duration_m);
3367                                 break;
3368
3369                                 case 'h':
3370                                         total += (atoi(n_field)*duration_h);
3371                                 break;
3372
3373                                 case 'd':
3374                                         total += (atoi(n_field)*duration_d);
3375                                 break;
3376
3377                                 case 'w':
3378                                         total += (atoi(n_field)*duration_w);
3379                                 break;
3380
3381                                 case 'y':
3382                                         total += (atoi(n_field)*duration_y);
3383                                 break;
3384                         }
3385                         n_field[0] = 0;
3386                 }
3387         }
3388         // add trailing seconds
3389         total += atoi(n_field);
3390
3391         return total;
3392 }
3393
3394
3395 void handle_kline(char **parameters, int pcnt, userrec *user)
3396 {
3397         if (pcnt >= 3)
3398         {
3399                 add_kline(duration(parameters[1]),user->nick,parameters[2],parameters[0]);
3400                 if (!duration(parameters[1]))
3401                 {
3402                         WriteOpers("*** %s added permenant K-line for %s.",user->nick,parameters[0]);
3403                 }
3404                 else
3405                 {
3406                         WriteOpers("*** %s added timed K-line for %s, expires in %d seconds.",user->nick,parameters[0],duration(parameters[1]));
3407                 }
3408         }
3409         else
3410         {
3411                 if (del_kline(parameters[0]))
3412                 {
3413                         WriteOpers("*** %s Removed K-line on %s.",user->nick,parameters[0]);
3414                 }
3415                 else
3416                 {
3417                         WriteServ(user->fd,"NOTICE %s :*** K-Line %s not found in list, try /stats k.",user->nick,parameters[0]);
3418                 }
3419         }
3420         apply_lines();
3421 }
3422
3423 void handle_eline(char **parameters, int pcnt, userrec *user)
3424 {
3425         if (pcnt >= 3)
3426         {
3427                 add_eline(duration(parameters[1]),user->nick,parameters[2],parameters[0]);
3428                 if (!duration(parameters[1]))
3429                 {
3430                         WriteOpers("*** %s added permenant E-line for %s.",user->nick,parameters[0]);
3431                 }
3432                 else
3433                 {
3434                         WriteOpers("*** %s added timed E-line for %s, expires in %d seconds.",user->nick,parameters[0],duration(parameters[1]));
3435                 }
3436         }
3437         else
3438         {
3439                 if (del_eline(parameters[0]))
3440                 {
3441                         WriteOpers("*** %s Removed E-line on %s.",user->nick,parameters[0]);
3442                 }
3443                 else
3444                 {
3445                         WriteServ(user->fd,"NOTICE %s :*** E-Line %s not found in list, try /stats e.",user->nick,parameters[0]);
3446                 }
3447         }
3448         // no need to apply the lines for an eline
3449 }
3450
3451 void handle_gline(char **parameters, int pcnt, userrec *user)
3452 {
3453         char netdata[MAXBUF];
3454         if (pcnt >= 3)
3455         {
3456                 add_gline(duration(parameters[1]),user->nick,parameters[2],parameters[0]);
3457                 // # <mask> <who-set-it> <time-set> <duration> :<reason>
3458                 snprintf(netdata,MAXBUF,"# %s %s %lu %lu :%s",parameters[0],user->nick,(unsigned long)TIME,(unsigned long)duration(parameters[1]),parameters[2]);
3459                 NetSendToAll(netdata);
3460                 if (!duration(parameters[1]))
3461                 {
3462                         WriteOpers("*** %s added permenant G-line for %s.",user->nick,parameters[0]);
3463                 }
3464                 else
3465                 {
3466                         WriteOpers("*** %s added timed G-line for %s, expires in %d seconds.",user->nick,parameters[0],duration(parameters[1]));
3467                 }
3468         }
3469         else
3470         {
3471                 if (del_gline(parameters[0]))
3472                 {
3473                         // . <mask> <who-removed-it>
3474                         snprintf(netdata,MAXBUF,". %s %s",parameters[0],user->nick);
3475                         WriteOpers("*** %s Removed G-line on %s.",user->nick,parameters[0]);
3476                 }
3477                 else
3478                 {
3479                         WriteServ(user->fd,"NOTICE %s :*** G-Line %s not found in list, try /stats g.",user->nick,parameters[0]);
3480                 }
3481         }
3482         apply_lines();
3483 }
3484
3485 void handle_zline(char **parameters, int pcnt, userrec *user)
3486 {
3487         if (pcnt >= 3)
3488         {
3489                 add_zline(duration(parameters[1]),user->nick,parameters[2],parameters[0]);
3490                 if (!duration(parameters[1]))
3491                 {
3492                         WriteOpers("*** %s added permenant Z-line for %s.",user->nick,parameters[0]);
3493                 }
3494                 else
3495                 {
3496                         WriteOpers("*** %s added timed Z-line for %s, expires in %d seconds.",user->nick,parameters[0],duration(parameters[1]));
3497                 }
3498         }
3499         else
3500         {
3501                 if (del_zline(parameters[0]))
3502                 {
3503                         WriteOpers("*** %s Removed Z-line on %s.",user->nick,parameters[0]);
3504                 }
3505                 else
3506                 {
3507                         WriteServ(user->fd,"NOTICE %s :*** Z-Line %s not found in list, try /stats Z.",user->nick,parameters[0]);
3508                 }
3509         }
3510         apply_lines();
3511 }
3512
3513 void handle_qline(char **parameters, int pcnt, userrec *user)
3514 {
3515         if (pcnt >= 3)
3516         {
3517                 add_qline(duration(parameters[1]),user->nick,parameters[2],parameters[0]);
3518                 if (!duration(parameters[1]))
3519                 {
3520                         WriteOpers("*** %s added permenant Q-line for %s.",user->nick,parameters[0]);
3521                 }
3522                 else
3523                 {
3524                         WriteOpers("*** %s added timed Q-line for %s, expires in %d seconds.",user->nick,parameters[0],duration(parameters[1]));
3525                 }
3526         }
3527         else
3528         {
3529                 if (del_qline(parameters[0]))
3530                 {
3531                         WriteOpers("*** %s Removed Q-line on %s.",user->nick,parameters[0]);
3532                 }
3533                 else
3534                 {
3535                         WriteServ(user->fd,"NOTICE %s :*** Q-Line %s not found in list, try /stats k.",user->nick,parameters[0]);
3536                 }
3537         }
3538         apply_lines();
3539 }
3540
3541