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         WriteServ(user->fd,"901 %s :End of MODULES list",user->nick);
1296 }
1297
1298 void handle_stats(char **parameters, int pcnt, userrec *user)
1299 {
1300         char Link_ServerName[MAXBUF],Link_IPAddr[MAXBUF],Link_Port[MAXBUF];
1301         if (pcnt != 1)
1302         {
1303                 return;
1304         }
1305         if (strlen(parameters[0])>1)
1306         {
1307                 /* make the stats query 1 character long */
1308                 parameters[0][1] = '\0';
1309         }
1310
1311
1312         FOREACH_MOD OnStats(*parameters[0]);
1313
1314         if (*parameters[0] == 'c')
1315         {
1316                 for (int i = 0; i < ConfValueEnum("link",&config_f); i++)
1317                 {
1318                         ConfValue("link","name",i,Link_ServerName,&config_f);
1319                         ConfValue("link","ipaddr",i,Link_IPAddr,&config_f);
1320                         ConfValue("link","port",i,Link_Port,&config_f);
1321                         WriteServ(user->fd,"213 %s C *@%s * %s %s 0 M",user->nick,Link_IPAddr,Link_ServerName,Link_Port);
1322                         WriteServ(user->fd,"244 %s H * * %s",user->nick,Link_ServerName);
1323                 }
1324         }
1325
1326         if (*parameters[0] == 'i')
1327         {
1328                 int idx = 0;
1329                 for (ClassVector::iterator i = Classes.begin(); i != Classes.end(); i++)
1330                 {
1331                         WriteServ(user->fd,"215 %s I * * * %d %d %s *",user->nick,MAXCLIENTS,idx,ServerName);
1332                         idx++;
1333                 }
1334         }
1335
1336         if (*parameters[0] == 'y')
1337         {
1338                 int idx = 0;
1339                 for (ClassVector::iterator i = Classes.begin(); i != Classes.end(); i++)
1340                 {
1341                         WriteServ(user->fd,"218 %s Y %d %d 0 %d %d",user->nick,idx,120,i->flood,i->registration_timeout);
1342                         idx++;
1343                 }
1344         }
1345
1346         if (*parameters[0] == 'U')
1347         {
1348                 for (int i = 0; i < ConfValueEnum("uline",&config_f); i++)
1349                 {
1350                         ConfValue("uline","server",i,Link_ServerName,&config_f);
1351                         WriteServ(user->fd,"248 %s U %s",user->nick,Link_ServerName);
1352                 }
1353         }
1354
1355         if (*parameters[0] == 'P')
1356         {
1357                 int idx = 0;
1358                 for (user_hash::iterator i = clientlist.begin(); i != clientlist.end(); i++)
1359                 {
1360                         if (strchr(i->second->modes,'o'))
1361                         {
1362                                 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));
1363                                 idx++;
1364                         }
1365                 }
1366                 WriteServ(user->fd,"249 %s :%d OPER(s)",user->nick,idx);
1367         //249 [Brain] :bwoadway-monitor (~wgmon@204.152.186.58) Idle: 18
1368         }
1369
1370         if (*parameters[0] == 'k')
1371         {
1372                 stats_k(user);
1373         }
1374
1375         if (*parameters[0] == 'g')
1376         {
1377                 stats_g(user);
1378         }
1379
1380         if (*parameters[0] == 'q')
1381         {
1382                 stats_q(user);
1383         }
1384
1385         if (*parameters[0] == 'Z')
1386         {
1387                 stats_z(user);
1388         }
1389
1390         if (*parameters[0] == 'e')
1391         {
1392                 stats_e(user);
1393         }
1394
1395         /* stats m (list number of times each command has been used, plus bytecount) */
1396         if (*parameters[0] == 'm')
1397         {
1398                 for (int i = 0; i < cmdlist.size(); i++)
1399                 {
1400                         if (cmdlist[i].handler_function)
1401                         {
1402                                 if (cmdlist[i].use_count)
1403                                 {
1404                                         /* RPL_STATSCOMMANDS */
1405                                         WriteServ(user->fd,"212 %s %s %d %d",user->nick,cmdlist[i].command,cmdlist[i].use_count,cmdlist[i].total_bytes);
1406                                 }
1407                         }
1408                 }
1409
1410         }
1411
1412         /* stats z (debug and memory info) */
1413         if (*parameters[0] == 'z')
1414         {
1415                 WriteServ(user->fd,"249 %s :Users(HASH_MAP) %d (%d bytes, %d buckets)",user->nick,clientlist.size(),clientlist.size()*sizeof(userrec),clientlist.bucket_count());
1416                 WriteServ(user->fd,"249 %s :Channels(HASH_MAP) %d (%d bytes, %d buckets)",user->nick,chanlist.size(),chanlist.size()*sizeof(chanrec),chanlist.bucket_count());
1417                 WriteServ(user->fd,"249 %s :Commands(VECTOR) %d (%d bytes)",user->nick,cmdlist.size(),cmdlist.size()*sizeof(command_t));
1418                 WriteServ(user->fd,"249 %s :MOTD(VECTOR) %d, RULES(VECTOR) %d",user->nick,MOTD.size(),RULES.size());
1419                 WriteServ(user->fd,"249 %s :address_cache(HASH_MAP) %d (%d buckets)",user->nick,IP.size(),IP.bucket_count());
1420                 WriteServ(user->fd,"249 %s :Modules(VECTOR) %d (%d)",user->nick,modules.size(),modules.size()*sizeof(Module));
1421                 WriteServ(user->fd,"249 %s :ClassFactories(VECTOR) %d (%d)",user->nick,factory.size(),factory.size()*sizeof(ircd_module));
1422                 WriteServ(user->fd,"249 %s :Ports(STATIC_ARRAY) %d",user->nick,boundPortCount);
1423         }
1424
1425         /* stats o */
1426         if (*parameters[0] == 'o')
1427         {
1428                 for (int i = 0; i < ConfValueEnum("oper",&config_f); i++)
1429                 {
1430                         char LoginName[MAXBUF];
1431                         char HostName[MAXBUF];
1432                         char OperType[MAXBUF];
1433                         ConfValue("oper","name",i,LoginName,&config_f);
1434                         ConfValue("oper","host",i,HostName,&config_f);
1435                         ConfValue("oper","type",i,OperType,&config_f);
1436                         WriteServ(user->fd,"243 %s O %s * %s %s 0",user->nick,HostName,LoginName,OperType);
1437                 }
1438         }
1439
1440         /* stats l (show user I/O stats) */
1441         if (*parameters[0] == 'l')
1442         {
1443                 WriteServ(user->fd,"211 %s :server:port nick bytes_in cmds_in bytes_out cmds_out",user->nick);
1444                 for (user_hash::iterator i = clientlist.begin(); i != clientlist.end(); i++)
1445                 {
1446                         if (isnick(i->second->nick))
1447                         {
1448                                 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);
1449                         }
1450                         else
1451                         {
1452                                 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);
1453                         }
1454
1455                 }
1456         }
1457
1458         /* stats u (show server uptime) */
1459         if (*parameters[0] == 'u')
1460         {
1461                 time_t current_time = 0;
1462                 current_time = TIME;
1463                 time_t server_uptime = current_time - startup_time;
1464                 struct tm* stime;
1465                 stime = gmtime(&server_uptime);
1466                 /* i dont know who the hell would have an ircd running for over a year nonstop, but
1467                  * Craig suggested this, and it seemed a good idea so in it went */
1468                 if (stime->tm_year > 70)
1469                 {
1470                         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);
1471                 }
1472                 else
1473                 {
1474                         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);
1475                 }
1476         }
1477
1478         WriteServ(user->fd,"219 %s %s :End of /STATS report",user->nick,parameters[0]);
1479         WriteOpers("*** Notice: Stats '%s' requested by %s (%s@%s)",parameters[0],user->nick,user->ident,user->host);
1480
1481 }
1482
1483 void handle_connect(char **parameters, int pcnt, userrec *user)
1484 {
1485         char Link_ServerName[1024];
1486         char Link_IPAddr[1024];
1487         char Link_Port[1024];
1488         char Link_Pass[1024];
1489         int LinkPort;
1490         bool found = false;
1491
1492         for (int i = 0; i < ConfValueEnum("link",&config_f); i++)
1493         {
1494                 if (!found)
1495                 {
1496                         ConfValue("link","name",i,Link_ServerName,&config_f);
1497                         ConfValue("link","ipaddr",i,Link_IPAddr,&config_f);
1498                         ConfValue("link","port",i,Link_Port,&config_f);
1499                         ConfValue("link","sendpass",i,Link_Pass,&config_f);
1500                         log(DEBUG,"(%d) Comparing against name='%s', ipaddr='%s', port='%s', recvpass='%s'",i,Link_ServerName,Link_IPAddr,Link_Port,Link_Pass);
1501                         LinkPort = atoi(Link_Port);
1502                         if (match(Link_ServerName,parameters[0])) {
1503                                 found = true;
1504                                 break;
1505                         }
1506                 }
1507         }
1508
1509         if (!found) {
1510                 WriteServ(user->fd,"NOTICE %s :*** Failed to connect to %s: No servers matching this pattern are configured for linking.",user->nick,parameters[0]);
1511                 return;
1512         }
1513
1514         // TODO: Perform a check here to stop a server being linked twice!
1515
1516         WriteServ(user->fd,"NOTICE %s :*** Connecting to %s (%s) port %s...",user->nick,Link_ServerName,Link_IPAddr,Link_Port);
1517
1518         if (me[defaultRoute])
1519         {
1520                 me[defaultRoute]->BeginLink(Link_IPAddr,LinkPort,Link_Pass,Link_ServerName,me[defaultRoute]->port);
1521                 return;
1522         }
1523         else
1524         {
1525                 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);
1526         }
1527 }
1528
1529 void handle_squit(char **parameters, int pcnt, userrec *user)
1530 {
1531         // send out an squit across the mesh and then clear the server list (for local squit)
1532         if (!pcnt)
1533         {
1534                 WriteOpers("SQUIT command issued by %s",user->nick);
1535                 char buffer[MAXBUF];
1536                 snprintf(buffer,MAXBUF,"& %s",ServerName);
1537                 NetSendToAll(buffer);
1538                 DoSplitEveryone();
1539         }
1540         else
1541         {
1542                 if (!strcasecmp("*",parameters[0]))
1543                 {
1544                         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);
1545                         WriteOpers("*** WARNING! %s tried to SQUIT all servers at once!",user->nick);
1546                         return;
1547                 }
1548                 if (!strcasecmp(ServerName,parameters[0]))
1549                 {
1550                         WriteServ(user->fd,"NOTICE %s :*** To take the local server out of the mesh, just use /SQUIT with no parameters instead.",user->nick);
1551                         return;
1552                 }
1553                 bool have_this_server = true;
1554                 int n_count = 0;
1555                 std::string server_to_squit = "";
1556                 while (have_this_server)
1557                 {
1558                         have_this_server = false;
1559                         for (int j = 0; j < 32; j++)
1560                         {
1561                                 if (me[j] != NULL)
1562                                 {
1563                                         for (int x = 0; x < me[j]->connectors.size(); x++)
1564                                         {
1565                                                 if (match(me[j]->connectors[x].GetServerName().c_str(),parameters[0]))
1566                                                 {
1567                                                         // found a valid ircd_connector.
1568                                                         have_this_server = true;
1569                                                         server_to_squit = me[j]->connectors[x].GetServerName().c_str();
1570                                                         break;
1571                                                 }
1572                                         }
1573                                 }
1574                         }
1575                         if (have_this_server)
1576                         {
1577                                 WriteOpers("SQUIT command issued by %s to remove %s from the mesh",user->nick,server_to_squit.c_str());
1578                                 WriteServ(user->fd,"NOTICE %s :*** Removing remote server %s.",user->nick,server_to_squit.c_str());
1579                                 char buffer[MAXBUF];
1580                                 snprintf(buffer,MAXBUF,"& %s",server_to_squit.c_str());
1581                                 NetSendToAll(buffer);
1582                                 DoSplit(server_to_squit.c_str());
1583                                 n_count++;
1584                         }
1585                 }
1586                 if (!n_count)
1587                 {
1588                         WriteServ(user->fd,"402 %s %s :Your pattern did not match any servers.",user->nick,parameters[0]);
1589                 }
1590         }
1591 }
1592
1593 void handle_links(char **parameters, int pcnt, userrec *user)
1594 {
1595         WriteServ(user->fd,"364 %s %s %s :0 %s",user->nick,ServerName,ServerName,ServerDesc);
1596         for (int j = 0; j < 32; j++)
1597         {
1598                 if (me[j] != NULL)
1599                 {
1600                         for (int k = 0; k < me[j]->connectors.size(); k++)
1601                         {
1602                                 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());
1603                         }
1604                 }
1605         }
1606         WriteServ(user->fd,"365 %s * :End of /LINKS list.",user->nick);
1607 }
1608
1609 void handle_map(char **parameters, int pcnt, userrec *user)
1610 {
1611         char line[MAXBUF];
1612         snprintf(line,MAXBUF,"006 %s :%s",user->nick,ServerName);
1613         while (strlen(line) < 50)
1614                 strcat(line," ");
1615         WriteServ(user->fd,"%s%d (%.2f%%)",line,local_count(),(float)(((float)local_count()/(float)registered_usercount())*100));
1616         for (int j = 0; j < 32; j++)
1617         {
1618                 if (me[j] != NULL)
1619                 {
1620                         for (int k = 0; k < me[j]->connectors.size(); k++)
1621                         {
1622                                 snprintf(line,MAXBUF,"006 %s :%c-%s",user->nick,islast(me[j]->connectors[k].GetServerName().c_str()),me[j]->connectors[k].GetServerName().c_str());
1623                                 while (strlen(line) < 50)
1624                                         strcat(line," ");
1625                                 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));
1626                         }
1627                 }
1628         }
1629         WriteServ(user->fd,"007 %s :End of /MAP",user->nick);
1630 }
1631
1632 bool is_uline(const char* server)
1633 {
1634         char ServName[MAXBUF];
1635         for (int i = 0; i < ConfValueEnum("uline",&config_f); i++)
1636         {
1637                 ConfValue("uline","server",i,ServName,&config_f);
1638                 if (!strcasecmp(server,ServName))
1639                 {
1640                         return true;
1641                 }
1642         }
1643         return false;
1644 }
1645 int operstrcmp(char* data,char* input)
1646 {
1647         int MOD_RESULT = 0;
1648         FOREACH_RESULT(OnOperCompare(data,input))
1649         log(DEBUG,"operstrcmp: %d",MOD_RESULT);
1650         if (MOD_RESULT == 1)
1651                 return 0;
1652         if (MOD_RESULT == -1)
1653                 return 1;
1654         log(DEBUG,"strcmp fallback: '%s' '%s' %d",data,input,strcmp(data,input));
1655         return strcmp(data,input);
1656 }
1657
1658 void handle_oper(char **parameters, int pcnt, userrec *user)
1659 {
1660         char LoginName[MAXBUF];
1661         char Password[MAXBUF];
1662         char OperType[MAXBUF];
1663         char TypeName[MAXBUF];
1664         char HostName[MAXBUF];
1665         char TheHost[MAXBUF];
1666         int j;
1667         bool found = false;
1668         bool fail2 = false;
1669         char global[MAXBUF];
1670
1671         snprintf(TheHost,MAXBUF,"%s@%s",user->ident,user->host);
1672
1673         for (int i = 0; i < ConfValueEnum("oper",&config_f); i++)
1674         {
1675                 ConfValue("oper","name",i,LoginName,&config_f);
1676                 ConfValue("oper","password",i,Password,&config_f);
1677                 ConfValue("oper","type",i,OperType,&config_f);
1678                 ConfValue("oper","host",i,HostName,&config_f);
1679                 if ((!strcmp(LoginName,parameters[0])) && (!operstrcmp(Password,parameters[1])) && (match(TheHost,HostName)))
1680                 {
1681                         fail2 = true;
1682                         for (j =0; j < ConfValueEnum("type",&config_f); j++)
1683                         {
1684                                 ConfValue("type","name",j,TypeName,&config_f);
1685
1686                                 if (!strcmp(TypeName,OperType))
1687                                 {
1688                                         /* found this oper's opertype */
1689                                         snprintf(global,MAXBUF,"| %s %s",user->nick,TypeName);
1690                                         NetSendToAll(global);
1691                                         ConfValue("type","host",j,HostName,&config_f);
1692                                         ChangeDisplayedHost(user,HostName);
1693                                         strlcpy(user->oper,TypeName,NICKMAX);
1694                                         found = true;
1695                                         fail2 = false;
1696                                         break;
1697                                 }
1698                         }
1699                 }
1700                 if (found)
1701                         break;
1702         }
1703         if (found)
1704         {
1705                 /* correct oper credentials */
1706                 WriteOpers("*** %s (%s@%s) is now an IRC operator of type %s",user->nick,user->ident,user->host,OperType);
1707                 WriteServ(user->fd,"381 %s :You are now an IRC operator of type %s",user->nick,OperType);
1708                 if (!strchr(user->modes,'o'))
1709                 {
1710                         strcat(user->modes,"o");
1711                         WriteServ(user->fd,"MODE %s :+o",user->nick);
1712                         snprintf(global,MAXBUF,"M %s +o",user->nick);
1713                         NetSendToAll(global);
1714                         FOREACH_MOD OnOper(user);
1715                         log(DEFAULT,"OPER: %s!%s@%s opered as type: %s",user->nick,user->ident,user->host,OperType);
1716                         AddOper(user);
1717                 }
1718         }
1719         else
1720         {
1721                 if (!fail2)
1722                 {
1723                         WriteServ(user->fd,"491 %s :Invalid oper credentials",user->nick);
1724                         WriteOpers("*** WARNING! Failed oper attempt by %s!%s@%s!",user->nick,user->ident,user->host);
1725                         log(DEFAULT,"OPER: Failed oper attempt by %s!%s@%s: user, host or password did not match.",user->nick,user->ident,user->host);
1726                 }
1727                 else
1728                 {
1729                         WriteServ(user->fd,"491 %s :Your oper block does not have a valid opertype associated with it",user->nick);
1730                         WriteOpers("*** CONFIGURATION ERROR! Oper block mismatch for OperType %s",OperType);
1731                         log(DEFAULT,"OPER: Failed oper attempt by %s!%s@%s: credentials valid, but oper type nonexistent.",user->nick,user->ident,user->host);
1732                 }
1733         }
1734         return;
1735 }
1736
1737 void handle_nick(char **parameters, int pcnt, userrec *user)
1738 {
1739         if (pcnt < 1)
1740         {
1741                 log(DEBUG,"not enough params for handle_nick");
1742                 return;
1743         }
1744         if (!parameters[0])
1745         {
1746                 log(DEBUG,"invalid parameter passed to handle_nick");
1747                 return;
1748         }
1749         if (!parameters[0][0])
1750         {
1751                 log(DEBUG,"zero length new nick passed to handle_nick");
1752                 return;
1753         }
1754         if (!user)
1755         {
1756                 log(DEBUG,"invalid user passed to handle_nick");
1757                 return;
1758         }
1759         if (!user->nick)
1760         {
1761                 log(DEBUG,"invalid old nick passed to handle_nick");
1762                 return;
1763         }
1764         if (!strcasecmp(user->nick,parameters[0]))
1765         {
1766                 log(DEBUG,"old nick is new nick, skipping");
1767                 return;
1768         }
1769         else
1770         {
1771                 if (strlen(parameters[0]) > 1)
1772                 {
1773                         if (parameters[0][0] == ':')
1774                         {
1775                                 *parameters[0]++;
1776                         }
1777                 }
1778                 if (matches_qline(parameters[0]))
1779                 {
1780                         WriteOpers("*** Q-Lined nickname %s from %s!%s@%s: %s",parameters[0],user->nick,user->ident,user->host,matches_qline(parameters[0]));
1781                         WriteServ(user->fd,"432 %s %s :Invalid nickname: %s",user->nick,parameters[0],matches_qline(parameters[0]));
1782                         return;
1783                 }
1784                 if ((Find(parameters[0])) && (Find(parameters[0]) != user))
1785                 {
1786                         WriteServ(user->fd,"433 %s %s :Nickname is already in use.",user->nick,parameters[0]);
1787                         return;
1788                 }
1789         }
1790         if (isnick(parameters[0]) == 0)
1791         {
1792                 WriteServ(user->fd,"432 %s %s :Erroneous Nickname",user->nick,parameters[0]);
1793                 return;
1794         }
1795
1796         if (user->registered == 7)
1797         {
1798                 int MOD_RESULT = 0;
1799                 FOREACH_RESULT(OnUserPreNick(user,parameters[0]));
1800                 if (MOD_RESULT) {
1801                         // if a module returns true, the nick change is silently forbidden.
1802                         return;
1803                 }
1804
1805                 WriteCommon(user,"NICK %s",parameters[0]);
1806
1807                 // N token must go to ALL servers!!!
1808                 char buffer[MAXBUF];
1809                 snprintf(buffer,MAXBUF,"n %s %s",user->nick,parameters[0]);
1810                 NetSendToAll(buffer);
1811         }
1812
1813         char oldnick[NICKMAX];
1814         strlcpy(oldnick,user->nick,NICKMAX);
1815
1816         /* change the nick of the user in the users_hash */
1817         user = ReHashNick(user->nick, parameters[0]);
1818         /* actually change the nick within the record */
1819         if (!user) return;
1820         if (!user->nick) return;
1821
1822         strlcpy(user->nick, parameters[0],NICKMAX);
1823
1824         log(DEBUG,"new nick set: %s",user->nick);
1825
1826         if (user->registered < 3)
1827         {
1828                 user->registered = (user->registered | 2);
1829                 // dont attempt to look up the dns until they pick a nick... because otherwise their pointer WILL change
1830                 // and unless we're lucky we'll get a duff one later on.
1831                 user->dns_done = (!lookup_dns(user->nick));
1832                 if (user->dns_done)
1833                         log(DEBUG,"Aborting dns lookup of %s because dns server experienced a failure.",user->nick);
1834         }
1835         if (user->registered == 3)
1836         {
1837                 /* user is registered now, bit 0 = USER command, bit 1 = sent a NICK command */
1838                 FOREACH_MOD OnUserRegister(user);
1839                 ConnectUser(user);
1840         }
1841         if (user->registered == 7)
1842         {
1843                 FOREACH_MOD OnUserPostNick(user,oldnick);
1844         }
1845 }
1846
1847
1848 void handle_v(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
1849 {
1850         char* servername = strtok(params," ");
1851         char* versionstr = strtok(NULL,"\r\n");
1852         ircd_connector* cn = reply->FindHost(servername);
1853         cn->SetVersionString(versionstr);
1854 }
1855
1856 void handle_V(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
1857 {
1858         char* src = strtok(params," ");
1859         char* dest = strtok(NULL," :");
1860         char* text = strtok(NULL,"\r\n");
1861         text++;
1862
1863         userrec* user = Find(src);
1864         if (user)
1865         {
1866                 userrec* dst = Find(dest);
1867
1868                 if (dst)
1869                 {
1870                         WriteTo(user, dst, "NOTICE %s :%s", dst->nick, text);
1871                 }
1872                 else
1873                 {
1874                         chanrec* d = FindChan(dest);
1875                         if (d)
1876                         {
1877                                 ChanExceptSender(d, user, "NOTICE %s :%s", d->name, text);
1878                         }
1879                 }
1880         }
1881
1882 }
1883
1884
1885 void handle_P(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
1886 {
1887         char* src = strtok(params," ");
1888         char* dest = strtok(NULL," :");
1889         char* text = strtok(NULL,"\r\n");
1890         text++;
1891
1892         userrec* user = Find(src);
1893         if (user)
1894         {
1895                 userrec* dst = Find(dest);
1896
1897                 if (dst)
1898                 {
1899                         WriteTo(user, dst, "PRIVMSG %s :%s", dst->nick, text);
1900                 }
1901                 else
1902                 {
1903                         chanrec* d = FindChan(dest);
1904                         if (d)
1905                         {
1906                                 ChanExceptSender(d, user, "PRIVMSG %s :%s", d->name, text);
1907                         }
1908                 }
1909         }
1910
1911 }
1912
1913 void handle_i(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
1914 {
1915         char* nick = strtok(params," ");
1916         char* from = strtok(NULL," ");
1917         char* channel = strtok(NULL," ");
1918         userrec* u = Find(nick);
1919         userrec* user = Find(from);
1920         chanrec* c = FindChan(channel);
1921         if ((c) && (u) && (user))
1922         {
1923                 u->InviteTo(c->name);
1924                 WriteFrom(u->fd,user,"INVITE %s :%s",u->nick,c->name);
1925         }
1926 }
1927
1928 void handle_t(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
1929 {
1930         char* setby = strtok(params," ");
1931         char* channel = strtok(NULL," :");
1932         char* topic = strtok(NULL,"\r\n");
1933         topic++;
1934         userrec* u = Find(setby);
1935         chanrec* c = FindChan(channel);
1936         if ((c) && (u))
1937         {
1938                 WriteChannelLocal(c,u,"TOPIC %s :%s",c->name,topic);
1939                 strlcpy(c->topic,topic,MAXTOPIC);
1940                 strlcpy(c->setby,u->nick,NICKMAX);
1941                 c->topicset = TIME;
1942         }
1943 }
1944
1945
1946 void handle_T(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
1947 {
1948         char* tm = strtok(params," ");
1949         char* setby = strtok(NULL," ");
1950         char* channel = strtok(NULL," :");
1951         char* topic = strtok(NULL,"\r\n");
1952         topic++;
1953         time_t TS = atoi(tm);
1954         chanrec* c = FindChan(channel);
1955         if (c)
1956         {
1957                 // in the case of topics and TS, the *NEWER*
1958                 if (TS <= c->topicset)
1959                 {
1960                         WriteChannelLocal(c,NULL,"TOPIC %s :%s",c->name,topic);
1961                         strlcpy(c->topic,topic,MAXTOPIC);
1962                         strlcpy(c->setby,setby,NICKMAX);
1963                 }
1964         }
1965 }
1966
1967 void handle_M(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
1968 {
1969         char* pars[128];
1970         char original[MAXBUF],target[MAXBUF];
1971         strlcpy(original,params,MAXBUF);
1972         int index = 0;
1973         char* parameter = strtok(params," ");
1974         strlcpy(target,parameter,MAXBUF);
1975         while (parameter)
1976         {
1977                 if (parameter[0] == ':')
1978                         parameter++;
1979                 pars[index++] = parameter;
1980                 parameter = strtok(NULL," ");
1981         }
1982         log(DEBUG,"*** MODE: %s %s",pars[0],pars[1]);
1983         merge_mode(pars,index);
1984         if (FindChan(target))
1985         {
1986                 WriteChannelLocal(FindChan(target), NULL, "MODE %s",original);
1987         }
1988         if (Find(target))
1989         {
1990                 Write(Find(target)->fd,":%s MODE %s",ServerName,original);
1991         }
1992 }
1993
1994 // m is modes set by users only (not servers) valid targets are channels or users.
1995
1996 void handle_m(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
1997 {
1998         // m blah #chatspike +b *!test@*4
1999         char* pars[128];
2000         char original[MAXBUF];
2001         strlcpy(original,params,MAXBUF);
2002
2003         if (!strchr(params,' '))
2004         {
2005                 WriteOpers("WARNING! 'm' token in data stream without any parameters! Something fishy is going on!");
2006                 return;
2007         }
2008
2009         int index = 0;
2010
2011         char* src = strtok(params," ");
2012         userrec* user = Find(src);
2013
2014         if (user)
2015         {
2016                 log(DEBUG,"Found user: %s",user->nick);
2017                 char* parameter = strtok(NULL," ");
2018                 while (parameter)
2019                 {
2020                         pars[index++] = parameter;
2021                         parameter = strtok(NULL," ");
2022                 }
2023
2024                 log(DEBUG,"Calling merge_mode2");
2025                 merge_mode2(pars,index,user);
2026         }
2027 }
2028
2029
2030 void handle_L(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2031 {
2032         char* nick = NULL;
2033         char* channel = NULL;
2034         char* reason = NULL;
2035         log(DEBUG,"L TOKEN PARS: '%s'",params);
2036         if (strstr(params,":#"))
2037         {
2038                 nick = strtok(params," ");
2039                 channel = strtok(NULL,"\r\n");
2040                 channel++;
2041                 reason = "";
2042         }
2043         else
2044         {
2045                 nick = strtok(params," ");
2046                 channel = strtok(NULL," :");
2047                 reason = strtok(NULL,"\r\n");
2048                 reason++;
2049         }
2050         userrec* user = Find(nick);
2051         if ((user) && (channel) && (reason))
2052         {
2053                 if ((!reason) && (*reason != '\0'))
2054                 {
2055                         del_channel(user,channel,reason,true);
2056                 }
2057                 else
2058                 {
2059                         del_channel(user,channel,NULL,true);
2060                 }
2061         }
2062 }
2063
2064 void handle_K(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2065 {
2066         char* src = strtok(params," ");
2067         char* nick = strtok(NULL," :");
2068         char* reason = strtok(NULL,"\r\n");
2069         char kreason[MAXBUF];
2070         reason++;
2071
2072         userrec* u = Find(nick);
2073         userrec* user = Find(src);
2074
2075         if ((user) && (u))
2076         {
2077                 WriteTo(user, u, "KILL %s :%s!%s!%s!%s (%s)", u->nick, source->name, ServerName, user->dhost,user->nick,reason);
2078                 WriteOpers("*** Remote kill from %s by %s: %s!%s@%s (%s)",source->name,user->nick,u->nick,u->ident,u->host,reason);
2079                 snprintf(kreason,MAXBUF,"[%s] Killed (From: '%s' (%s))",source->name,user->nick,reason);
2080                 kill_link(u,kreason);
2081         }
2082 }
2083
2084 void handle_Q(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2085 {
2086         char* nick = strtok(params," :");
2087         char* reason = strtok(NULL,"\r\n");
2088         reason++;
2089
2090         userrec* user = Find(nick);
2091
2092         if (user)
2093         {
2094                 if (strlen(reason)>MAXQUIT)
2095                 {
2096                         reason[MAXQUIT-1] = '\0';
2097                 }
2098
2099
2100                 WriteCommonExcept(user,"QUIT :%s",reason);
2101
2102                 user_hash::iterator iter = clientlist.find(user->nick);
2103
2104                 if (iter != clientlist.end())
2105                 {
2106                         log(DEBUG,"deleting user hash value %d",iter->second);
2107                         clientlist.erase(iter);
2108                 }
2109
2110                 if (user->registered == 7)
2111                 {
2112                         purge_empty_chans(user);
2113                 }
2114                 delete user;
2115         }
2116 }
2117
2118 void handle_n(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2119 {
2120         char* oldnick = strtok(params," ");
2121         char* newnick = strtok(NULL," ");
2122
2123         userrec* user = Find(oldnick);
2124
2125         if (user)
2126         {
2127                 if (is_uline(tcp_host))
2128                 {
2129                         int MOD_RESULT = 0;
2130                         FOREACH_RESULT(OnUserPreNick(user,newnick));
2131                         if (MOD_RESULT) {
2132                                 // if a module returns true, the nick change couldnt be allowed
2133                                 kill_link(user,"Nickname collision");
2134                                 return;
2135                         }
2136                         if (matches_qline(newnick))
2137                         {
2138                                 kill_link(user,"Nickname collision");
2139                                 return;
2140                         }
2141
2142                         // broadcast this because its a services thingy
2143                         char buffer[MAXBUF];
2144                         snprintf(buffer,MAXBUF,"n %s %s",user->nick,newnick);
2145                         NetSendToAllExcept(tcp_host,buffer);
2146                 }
2147                 WriteCommon(user,"NICK %s",newnick);
2148                 user = ReHashNick(user->nick, newnick);
2149                 if (!user) return;
2150                 if (!user->nick) return;
2151                 strlcpy(user->nick, newnick,NICKMAX);
2152                 log(DEBUG,"new nick set: %s",user->nick);
2153         }
2154 }
2155
2156 // k <SOURCE> <DEST> <CHANNEL> :<REASON>
2157 void handle_k(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2158 {
2159         char* src = strtok(params," ");
2160         char* dest = strtok(NULL," ");
2161         char* channel = strtok(NULL," :");
2162         char* reason = strtok(NULL,"\r\n");
2163         reason++;
2164         userrec* s = Find(src);
2165         userrec* d = Find(dest);
2166         chanrec* c = FindChan(channel);
2167         if ((s) && (d) && (c))
2168         {
2169                 kick_channel(s,d,c,reason);
2170                 return;
2171         }
2172         d = Find(channel);
2173         c = FindChan(dest);
2174         if ((s) && (d) && (c))
2175         {
2176                 kick_channel(s,d,c,reason);
2177                 return;
2178         }
2179 }
2180
2181 void handle_AT(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2182 {
2183         char* who = strtok(params," :");
2184         char* text = strtok(NULL,"\r\n");
2185         text++;
2186         userrec* s = Find(who);
2187         if (s)
2188         {
2189                 WriteWallOps(s,true,text);
2190         }
2191 }
2192
2193 void handle_H(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2194 {
2195         log(DEBUG,"Adding ULined server %s to my map",params);
2196         ircd_connector s;
2197         s.SetState(STATE_DISCONNECTED);
2198         s.SetServerName(params);
2199
2200         for (int j = 0; j < 32; j++)
2201         {
2202                 if (me[j] != NULL)
2203                 {
2204                         for (int k = 0; k < me[j]->connectors.size(); k++)
2205                         {
2206                                 if (!strcasecmp(me[j]->connectors[k].GetServerName().c_str(),params))
2207                                 {
2208                                         // dont allow a server to be added twice
2209                                         log(DEBUG,"ULined server %s already in the map!",params);
2210                                         return;
2211                                 }
2212                         }
2213                 }
2214         }
2215
2216         source->connectors.push_back(s);
2217         WriteOpers("Non-Mesh server %s has joined the network",params);
2218 }
2219
2220 void handle_N(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2221 {
2222         char* tm = strtok(params," ");
2223         char* nick = strtok(NULL," ");
2224         char* host = strtok(NULL," ");
2225         char* dhost = strtok(NULL," ");
2226         char* ident = strtok(NULL," ");
2227         char* modes = strtok(NULL," ");
2228         char* ipaddr = strtok(NULL," ");
2229         char* server = strtok(NULL," :");
2230         char* gecos = strtok(NULL,"\r\n");
2231         gecos++;
2232         modes++;
2233         time_t TS = atoi(tm);
2234         user_hash::iterator iter = clientlist.find(nick);
2235         if (iter != clientlist.end())
2236         {
2237                 // nick collision
2238                 WriteOpers("Nickname collision: %s@%s != %s@%s",nick,server,iter->second->nick,iter->second->server);
2239                 char str[MAXBUF];
2240                 snprintf(str,MAXBUF,"Killed (Nick Collision (%s@%s < %s@%s))",nick,server,iter->second->nick,iter->second->server);
2241                 WriteServ(iter->second->fd, "KILL %s :%s",iter->second->nick,str);
2242                 kill_link(iter->second,str);
2243         }
2244         clientlist[nick] = new userrec();
2245         // remote users have an fd of -1. This is so that our Write abstraction
2246         // routines know to route any messages to this record away to whatever server
2247         // theyre on.
2248         clientlist[nick]->fd = -1;
2249         strlcpy(clientlist[nick]->nick, nick,NICKMAX);
2250         strlcpy(clientlist[nick]->host, host,160);
2251         strlcpy(clientlist[nick]->dhost, dhost,160);
2252         strlcpy(clientlist[nick]->server, server,256);
2253         strlcpy(clientlist[nick]->ident, ident,10); // +1 char to compensate for tilde
2254         strlcpy(clientlist[nick]->fullname, gecos,128);
2255         strlcpy(clientlist[nick]->ip,ipaddr,32);
2256         clientlist[nick]->signon = TS;
2257         clientlist[nick]->nping = 0; // this is ignored for a remote user anyway.
2258         clientlist[nick]->lastping = 1;
2259         clientlist[nick]->port = 0; // so is this...
2260         clientlist[nick]->registered = 7; // this however we need to set for them to receive messages and appear online
2261         clientlist[nick]->idle_lastmsg = TIME; // this is unrealiable and wont actually be used locally
2262         for (int i = 0; i < MAXCHANS; i++)
2263         {
2264                 clientlist[nick]->chans[i].channel = NULL;
2265                 clientlist[nick]->chans[i].uc_modes = 0;
2266         }
2267         FOREACH_MOD OnGlobalConnect(clientlist[nick]);
2268         if (strchr(clientlist[nick]->modes,'o'))
2269         {
2270                 FOREACH_MOD OnGlobalOper(clientlist[nick]);
2271         }
2272 }
2273
2274 void handle_F(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2275 {
2276         long tdiff = TIME - atoi(params);
2277         if (tdiff)
2278                 WriteOpers("TS split for %s -> %s: %d",source->name,reply->name,tdiff);
2279 }
2280
2281 void handle_a(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2282 {
2283         char* nick = strtok(params," :");
2284         char* gecos = strtok(NULL,"\r\n");
2285
2286         userrec* user = Find(nick);
2287
2288         if (user)
2289                 strlcpy(user->fullname,gecos,MAXBUF);
2290 }
2291
2292 void handle_b(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2293 {
2294         char* nick = strtok(params," ");
2295         char* host = strtok(NULL," ");
2296
2297         userrec* user = Find(nick);
2298
2299         if (user)
2300                 strlcpy(user->dhost,host,160);
2301 }
2302
2303 void handle_plus(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2304 {
2305         // %s %s %d %d
2306         // + test3.chatspike.net 7010 -2016508415
2307         char* servername = strtok(params," ");
2308         char* ipaddr = strtok(NULL," ");
2309         char* ipport = strtok(NULL," ");
2310         char* cookie = strtok(NULL," ");
2311         log(DEBUG,"*** Connecting back to %s:%d",ipaddr,atoi(ipport));
2312
2313
2314         bool conn_already = false;
2315         for (int i = 0; i < 32; i++)
2316         {
2317                 if (me[i] != NULL)
2318                 {
2319                         for (int j = 0; j < me[i]->connectors.size(); j++)
2320                         {
2321                                 if (!strcasecmp(me[i]->connectors[j].GetServerName().c_str(),servername))
2322                                 {
2323                                         if (me[i]->connectors[j].GetServerPort() == atoi(ipport))
2324                                         {
2325                                                 log(DEBUG,"Already got a connection to %s:%d, ignoring +",ipaddr,atoi(ipport));
2326                                                 conn_already = true;
2327                                         }
2328                                 }
2329                         }
2330                 }
2331         }
2332         if (!conn_already)
2333                 me[defaultRoute]->MeshCookie(ipaddr,atoi(ipport),atoi(cookie),servername);
2334 }
2335
2336 void handle_R(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2337 {
2338         char* server = strtok(params," ");
2339         char* data = strtok(NULL,"\r\n");
2340         if ((!data) || (!server))
2341         {
2342                 log(DEBUG,"Someones playing silly buggers, attempting to send to a null server or send a null message (BUG?)");
2343                 return;
2344         }
2345
2346         log(DEBUG,"Forwarded packet '%s' to '%s'",data,server);
2347         NetSendToOne(server,data);
2348 }
2349
2350 void handle_J(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2351 {
2352         // IMPORTANT NOTE
2353         // The J token currently has no timestamp - this needs looking at
2354         // because it will allow splitriding.
2355         char* nick = strtok(params," ");
2356         char* channel = strtok(NULL," ");
2357         userrec* user = Find(nick);
2358         while (channel)
2359         {
2360                 if ((user != NULL) && (strcmp(channel,"")))
2361                 {
2362                         char privilage = '\0';
2363                         if (channel[0] != '#')
2364                         {
2365                                 privilage = channel[0];
2366                                 channel++;
2367                         }
2368                         add_channel(user,channel,"",true);
2369
2370                         // now work out the privilages they should have on each channel
2371                         // and send the appropriate servermodes.
2372                         for (int i = 0; i != MAXCHANS; i++)
2373                         {
2374                                 if (user->chans[i].channel)
2375                                 {
2376                                         if (!strcasecmp(user->chans[i].channel->name,channel))
2377                                         {
2378                                                 if (privilage == '@')
2379                                                 {
2380                                                         user->chans[i].uc_modes = user->chans[i].uc_modes | UCMODE_OP;
2381                                                         WriteChannelLocal(user->chans[i].channel, NULL, "MODE %s +o %s",channel,user->nick);
2382                                                 }
2383                                                 if (privilage == '%')
2384                                                 {
2385                                                         user->chans[i].uc_modes = user->chans[i].uc_modes | UCMODE_HOP;
2386                                                         WriteChannelLocal(user->chans[i].channel, NULL, "MODE %s +h %s",channel,user->nick);
2387                                                 }
2388                                                 if (privilage == '+')
2389                                                 {
2390                                                         user->chans[i].uc_modes = user->chans[i].uc_modes | UCMODE_VOICE;
2391                                                         WriteChannelLocal(user->chans[i].channel, NULL, "MODE %s +v %s",channel,user->nick);
2392                                                 }
2393                                         }
2394                                 }
2395                         }
2396
2397                 }
2398                 channel = strtok(NULL," ");
2399         }
2400 }
2401
2402 void handle_dollar(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2403 {
2404         log(DEBUG,"Storing routing table...");
2405         char* sourceserver = strtok(params," ");
2406         char* server = strtok(NULL," ");
2407         for (int i = 0; i < 32; i++)
2408         {
2409                 if (me[i] != NULL)
2410                 {
2411                         for (int j = 0; j < me[i]->connectors.size(); j++)
2412                         {
2413                                 if (!strcasecmp(me[i]->connectors[j].GetServerName().c_str(),sourceserver))
2414                                 {
2415                                         me[i]->connectors[j].routes.clear();
2416                                         log(DEBUG,"Found entry for source server.");
2417                                         while (server)
2418                                         {
2419                                                 // store each route
2420                                                 me[i]->connectors[j].routes.push_back(server);
2421                                                 log(DEBUG,"*** Stored route: %s -> %s -> %s",ServerName,sourceserver,server);
2422                                                 server = strtok(NULL," ");
2423                                         }
2424                                         return;
2425                                 }
2426                         }
2427                 }
2428         }
2429         log(DEBUG,"Warning! routing table received from nonexistent server!");
2430 }
2431
2432 void handle_amp(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2433 {
2434         log(DEBUG,"Netsplit! %s split from mesh, removing!",params);
2435         WriteOpers("*** NOTICE - Controlled netsplit: %s split from %s",params,ServerName);
2436         bool go_again = true;
2437         while (go_again)
2438         {
2439                 go_again = false;
2440                 for (int i = 0; i < 32; i++)
2441                 {
2442                         if (me[i] != NULL)
2443                         {
2444                                 for (vector<ircd_connector>::iterator j = me[i]->connectors.begin(); j != me[i]->connectors.end(); j++)
2445                                 {
2446                                         if (!strcasecmp(j->GetServerName().c_str(),params))
2447                                         {
2448                                                 j->routes.clear();
2449                                                 j->CloseConnection();
2450                                                 me[i]->connectors.erase(j);
2451                                                 go_again = true;
2452                                                 break;
2453                                         }
2454                                 }
2455                         }
2456                 }
2457         }
2458         log(DEBUG,"Removed server. Will remove clients...");
2459         // iterate through the userlist and remove all users on this server.
2460         // because we're dealing with a mesh, we dont have to deal with anything
2461         // "down-route" from this server (nice huh)
2462         go_again = true;
2463         char reason[MAXBUF];
2464         snprintf(reason,MAXBUF,"%s %s",ServerName,params);
2465         while (go_again)
2466         {
2467                 go_again = false;
2468                 for (user_hash::const_iterator u = clientlist.begin(); u != clientlist.end(); u++)
2469                 {
2470                         if (!strcasecmp(u->second->server,params))
2471                         {
2472                                 kill_link(u->second,reason);
2473                                 go_again = true;
2474                                 break;
2475                         }
2476                 }
2477         }
2478 }
2479
2480 unsigned long authcookie;
2481
2482 void handle_hash(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2483 {
2484         // # <mask> <who-set-it> <time-set> <duration> :<reason>
2485         log(DEBUG,"Adding G-line");
2486         char* mask = strtok(params," ");
2487         char* who = strtok(NULL," ");
2488         char* create_time = strtok(NULL," ");
2489         char* duration = strtok(NULL," :");
2490         char* reason = strtok(NULL,"\r\n");
2491         reason++;
2492         add_gline(atoi(duration),(const char*)who,(const char*)reason,(const char*)mask);
2493         // we must update the creation time on this gline
2494         // now that we've added it, or it wont expire at the right time.
2495         gline_set_creation_time(mask,atoi(create_time));
2496         if (!atoi(duration))
2497         {
2498                 WriteOpers("*** %s Added permenant G-Line on %s.",who,mask);
2499         }
2500         else
2501         {
2502                 WriteOpers("*** %s Added timed G-Line on %s to expire in %d seconds.",who,mask,atoi(duration));
2503         }
2504         apply_lines();
2505 }
2506
2507 void handle_dot(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2508 {
2509         log(DEBUG,"Removing G-line");
2510         char* mask = strtok(params," ");
2511         char* who = strtok(NULL," ");
2512         if (mask)
2513         {
2514                 if (del_gline((const char*)mask))
2515                 {
2516                         if (who)
2517                         {
2518                                 WriteOpers("*** %s Removed G-line on %s.",who,mask);
2519                         }
2520                 }
2521         }
2522 }
2523
2524 void handle_add_sqline(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2525 {
2526         // { <mask> <who-set-it> <time-set> <duration> :<reason>
2527         log(DEBUG,"Adding Q-line");
2528         char* mask = strtok(params," ");
2529         char* who = strtok(NULL," ");
2530         char* create_time = strtok(NULL," ");
2531         char* duration = strtok(NULL," :");
2532         char* reason = strtok(NULL,"\r\n");
2533         reason++;
2534         add_qline(atoi(duration),(const char*)who,(const char*)reason,(const char*)mask);
2535         // we must update the creation time on this gline
2536         // now that we've added it, or it wont expire at the right time.
2537         qline_set_creation_time(mask,atoi(create_time));
2538         qline_make_global(mask);
2539         if (!atoi(duration))
2540         {
2541                 WriteOpers("*** %s Added permenant Q-Line on %s.",who,mask);
2542         }
2543         else
2544         {
2545                 WriteOpers("*** %s Added timed Q-Line on %s to expire in %d seconds.",who,mask,atoi(duration));
2546         }
2547         apply_lines();
2548 }
2549
2550 void handle_del_sqline(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2551 {
2552         log(DEBUG,"Removing Q-line");
2553         char* mask = strtok(params," ");
2554         char* who = strtok(NULL," ");
2555         if (mask)
2556         {
2557                 if (del_qline((const char*)mask))
2558                 {
2559                         if (who)
2560                         {
2561                                 WriteOpers("*** %s Removed Q-line on %s.",who,mask);
2562                         }
2563                 }
2564         }
2565 }
2566
2567 void handle_add_szline(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2568 {
2569         // } <mask> <who-set-it> <time-set> <duration> :<reason>
2570         log(DEBUG,"Adding Z-line");
2571         char* mask = strtok(params," ");
2572         char* who = strtok(NULL," ");
2573         char* create_time = strtok(NULL," ");
2574         char* duration = strtok(NULL," :");
2575         char* reason = strtok(NULL,"\r\n");
2576         reason++;
2577         add_zline(atoi(duration),(const char*)who,(const char*)reason,(const char*)mask);
2578         // we must update the creation time on this gline
2579         // now that we've added it, or it wont expire at the right time.
2580         zline_set_creation_time(mask,atoi(create_time));
2581         zline_make_global(mask);
2582         if (!atoi(duration))
2583         {
2584                 WriteOpers("*** %s Added permenant Z-Line on %s.",who,mask);
2585         }
2586         else
2587         {
2588                 WriteOpers("*** %s Added timed Z-Line on %s to expire in %d seconds.",who,mask,atoi(duration));
2589         }
2590         apply_lines();
2591 }
2592
2593 void handle_del_szline(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2594 {
2595         log(DEBUG,"Removing Z-line");
2596         char* mask = strtok(params," ");
2597         char* who = strtok(NULL," ");
2598         if (mask)
2599         {
2600                 if (del_zline((const char*)mask))
2601                 {
2602                         if (who)
2603                         {
2604                                 WriteOpers("*** %s Removed Q-line on %s.",who,mask);
2605                         }
2606                 }
2607         }
2608 }
2609
2610 void handle_pipe(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2611 {
2612         char* nick = strtok(params," ");
2613         char* type = strtok(params," ");
2614         userrec* u = Find(nick);
2615         if (u)
2616         {
2617                 strlcpy(u->oper,type,NICKMAX);
2618         }
2619 }
2620
2621
2622 void process_restricted_commands(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host,char* ipaddr,int port)
2623 {
2624         char buffer[MAXBUF];
2625         int MOD_RESULT = 0;
2626
2627         switch(token)
2628         {
2629                 // Y <TS>
2630                 // start netburst
2631                 case 'Y':
2632                         nb_start = TIME;
2633                         WriteOpers("Server %s is starting netburst.",tcp_host);
2634                         // now broadcast this new servers address out to all servers that are linked to us,
2635                         // except the newcomer. They'll all attempt to connect back to it.
2636                         authcookie = rand()*rand();
2637                         snprintf(buffer,MAXBUF,"~ %lu",(unsigned long)authcookie);
2638                         NetSendToAll(buffer);
2639                 break;
2640                 // ~
2641                 // Store authcookie
2642                 // once stored, this authcookie permits other servers to log in
2643                 // without user or password, using it.
2644                 case '~':
2645                         auth_cookies.push_back(atoi(params));
2646                         log(DEBUG,"*** Stored auth cookie, will permit servers with auth-cookie %d",atoi(params));
2647                 break;
2648                 // connect back to a server using an authcookie
2649                 case '+':
2650                         handle_plus(token,params,source,reply,tcp_host);
2651                 break;
2652                 // routing table
2653                 case '$':
2654                         handle_dollar(token,params,source,reply,tcp_host);
2655                 break;
2656                 // node unreachable - we cant route to a server, sooooo we slit it off.
2657                 // servers can generate these for themselves for an squit.
2658                 case '&':
2659                         handle_amp(token,params,source,reply,tcp_host);
2660                 break;
2661                 // R <server> <data>
2662                 // redirect token, send all of <data> along to the given
2663                 // server as this server has been found to still have a route to it
2664                 case 'R':
2665                         handle_R(token,params,source,reply,tcp_host);
2666                 break;
2667                 // ?
2668                 // ping
2669                 case '?':
2670                         reply->SendPacket("!",tcp_host);
2671                 break;
2672                 // ?
2673                 // pong
2674                 case '!':
2675                 break;
2676                 // *
2677                 // no operation
2678                 case '*':
2679                 break;
2680                 // N <TS> <NICK> <HOST> <DHOST> <IDENT> <MODES> <SERVER> :<GECOS>
2681                 // introduce remote client
2682                 case 'N':
2683                         handle_N(token,params,source,reply,tcp_host);
2684                 break;
2685                 // a <NICK> :<GECOS>
2686                 // change GECOS (SETNAME)
2687                 case 'a':
2688                         handle_a(token,params,source,reply,tcp_host);
2689                 break;
2690                 // b <NICK> :<HOST>
2691                 // change displayed host (SETHOST)
2692                 case 'b':
2693                         handle_b(token,params,source,reply,tcp_host);
2694                 break;
2695                 // t <NICK> <CHANNEL> :<TOPIC>
2696                 // change a channel topic
2697                 case 't':
2698                         handle_t(token,params,source,reply,tcp_host);
2699                 break;
2700                 // i <NICK> <CHANNEL>
2701                 // invite a user to a channel
2702                 case 'i':
2703                         handle_i(token,params,source,reply,tcp_host);
2704                 break;
2705                 // k <SOURCE> <DEST> <CHANNEL> :<REASON>
2706                 // kick a user from a channel
2707                 case 'k':
2708                         handle_k(token,params,source,reply,tcp_host);
2709                 break;
2710                 // n <NICK> <NEWNICK>
2711                 // change nickname of client -- a server should only be able to
2712                 // change the nicknames of clients that reside on it unless
2713                 // they are ulined.
2714                 case 'n':
2715                         handle_n(token,params,source,reply,tcp_host);
2716                 break;
2717                 // J <NICK> <CHANLIST>
2718                 // Join user to channel list, merge channel permissions
2719                 case 'J':
2720                         handle_J(token,params,source,reply,tcp_host);
2721                 break;
2722                 // T <TS> <CHANNEL> <TOPICSETTER> :<TOPIC>
2723                 // change channel topic (netburst only)
2724                 case 'T':
2725                         handle_T(token,params,source,reply,tcp_host);
2726                 break;
2727                 // M <TARGET> <MODES> [MODE-PARAMETERS]
2728                 // Server setting modes on an object
2729                 case 'M':
2730                         handle_M(token,params,source,reply,tcp_host);
2731                 break;
2732                 // m <SOURCE> <TARGET> <MODES> [MODE-PARAMETERS]
2733                 // User setting modes on an object
2734                 case 'm':
2735                         handle_m(token,params,source,reply,tcp_host);
2736                 break;
2737                 // P <SOURCE> <TARGET> :<TEXT>
2738                 // Send a private/channel message
2739                 case 'P':
2740                         handle_P(token,params,source,reply,tcp_host);
2741                 break;
2742                 // V <SOURCE> <TARGET> :<TEXT>
2743                 // Send a private/channel notice
2744                 case 'V':
2745                         handle_V(token,params,source,reply,tcp_host);
2746                 break;
2747                 // v <servername> <arbitary version string>
2748                 case 'v':
2749                         handle_v(token,params,source,reply,tcp_host);
2750                 break;
2751                 // L <SOURCE> <CHANNEL> :<REASON>
2752                 // User parting a channel
2753                 case 'L':
2754                         handle_L(token,params,source,reply,tcp_host);
2755                 break;
2756                 // Q <SOURCE> :<REASON>
2757                 // user quitting
2758                 case 'Q':
2759                         handle_Q(token,params,source,reply,tcp_host);
2760                 break;
2761                 // H <SERVER>
2762                 // introduce non-meshable server (such as a services server)
2763                 case 'H':
2764                         handle_H(token,params,source,reply,tcp_host);
2765                 break;
2766                 // K <SOURCE> <DEST> :<REASON>
2767                 // remote kill
2768                 case 'K':
2769                         handle_K(token,params,source,reply,tcp_host);
2770                 break;
2771                 // @ <SOURCE> :<TEXT>
2772                 // wallops
2773                 case '@':
2774                         handle_AT(token,params,source,reply,tcp_host);
2775                 break;
2776                 // # <mask> <who-set-it> <time-set> <duration> :<reason>
2777                 // add gline
2778                 case '#':
2779                         handle_hash(token,params,source,reply,tcp_host);
2780                 break;
2781                 // . <mask> <who>
2782                 // remove gline
2783                 case '.':
2784                         handle_dot(token,params,source,reply,tcp_host);
2785                 break;
2786                 // # <mask> <who-set-it> <time-set> <duration> :<reason>
2787                 // add gline
2788                 case '{':
2789                         handle_add_sqline(token,params,source,reply,tcp_host);
2790                 break;
2791                 // . <mask> <who>
2792                 // remove gline
2793                 case '[':
2794                         handle_del_sqline(token,params,source,reply,tcp_host);
2795                 break;
2796                 // # <mask> <who-set-it> <time-set> <duration> :<reason>
2797                 // add gline
2798                 case '}':
2799                         handle_add_szline(token,params,source,reply,tcp_host);
2800                 break;
2801                 // . <mask> <who>
2802                 // remove gline
2803                 case ']':
2804                         handle_del_szline(token,params,source,reply,tcp_host);
2805                 break;
2806                 // | <nick> <opertype>
2807                 // set opertype
2808                 case '|':
2809                         handle_pipe(token,params,source,reply,tcp_host);
2810                 break;
2811                 // F <TS>
2812                 // end netburst
2813                 case 'F':
2814                         WriteOpers("Server %s has completed netburst. (%d secs)",tcp_host,TIME-nb_start);
2815                         handle_F(token,params,source,reply,tcp_host);
2816                         nb_start = 0;
2817                         // tell all the other servers to use this authcookie to connect back again
2818                         // got '+ test3.chatspike.net 7010 -2016508415' from test.chatspike.net
2819                         snprintf(buffer,MAXBUF,"+ %s %s %d %lu",tcp_host,ipaddr,port,(unsigned long)authcookie);
2820                         NetSendToAllExcept(tcp_host,buffer);
2821                 break;
2822                 case '/':
2823                         WriteOpers("Server %s is IRCServices-based server (assumes-SVSMODE) - Nickname Services: %s",tcp_host,params);
2824                         strlcpy(source->nickserv,params,NICKMAX);
2825                 break;
2826                 // F <TS>
2827                 // end netburst with no mesh creation
2828                 case 'f':
2829                         WriteOpers("Server %s has completed netburst. (%d secs)",tcp_host,TIME-nb_start);
2830                         handle_F(token,params,source,reply,tcp_host);
2831                         nb_start = 0;
2832                         // tell everyone else about the new server name so they just add it in the disconnected
2833                         // state
2834                         snprintf(buffer,MAXBUF,"u %s :%s",tcp_host,GetServerDescription(tcp_host).c_str());
2835                         NetSendToAllExcept(tcp_host,buffer);
2836                 break;
2837                 // X <reserved>
2838                 // Send netburst now
2839                 case 'X':
2840                         WriteOpers("Sending my netburst to %s",tcp_host);
2841                         DoSync(source,tcp_host);
2842                         WriteOpers("Send of netburst to %s completed",tcp_host);
2843                         NetSendMyRoutingTable();
2844                 break;
2845                 // anything else
2846                 default:
2847                         MOD_RESULT = 0;
2848                         string_list s;
2849                         char* data = strtok(params," ");
2850                         while (data)
2851                         {
2852                                 if (*data == ':')
2853                                 {
2854                                         // the last item is a special case
2855                                         data++;
2856                                         char datalast[MAXBUF];
2857                                         strlcpy(datalast,data,MAXBUF);
2858                                         data = strtok(NULL," ");
2859                                         while (data)
2860                                         {
2861                                                 strlcpy(datalast," ",MAXBUF);
2862                                                 strlcpy(datalast,data,MAXBUF);
2863                                                 data = strtok(NULL," ");
2864                                         }
2865                                         s.push_back(data);
2866                                         break;
2867                                 }
2868                                 s.push_back(data);
2869                                 data = strtok(NULL," ");
2870                         }
2871                         FOREACH_RESULT(OnMeshToken(token,s,source,reply,tcp_host,ipaddr,port));
2872                         if (!MOD_RESULT)
2873                                 WriteOpers("WARNING! Unknown datagram type '%c'",token);
2874                 break;
2875         }
2876 }
2877
2878
2879 void handle_link_packet(char* udp_msg, char* tcp_host, serverrec *serv)
2880 {
2881         if ((!strncmp(udp_msg,"USER ",5)) || (!strncmp(udp_msg,"NICK ",5)) || (!strncmp(udp_msg,"PASS ",5)) || (!strncmp(udp_msg,"SERVER ",7)))
2882         {
2883                 // a user on a server port, just close their connection.
2884                 RemoveServer(tcp_host);
2885                 return;
2886         }
2887
2888         char response[10240];
2889         char token = udp_msg[0];
2890         char* old = udp_msg;
2891
2892         if ((token != ':') && (strlen(udp_msg)>1) && (udp_msg[1] != ' '))
2893         {
2894                 WriteOpers("*** Discarded %d chars illegal data from %s",strlen(udp_msg),tcp_host);
2895         }
2896
2897         if (token == ':') // leading :servername or details - strip them off (services does this, sucky)
2898         {
2899                 char* src = udp_msg+1;
2900                 while (udp_msg[0] != ' ')
2901                         udp_msg++;
2902                 udp_msg[0] = 0;
2903                 udp_msg++;
2904                 char* comd = udp_msg;
2905                 while (udp_msg[0] != ' ')
2906                         udp_msg++;
2907                 udp_msg[0] = 0;
2908                 udp_msg++;
2909                 char data[MAXBUF];
2910                 char source[MAXBUF];
2911                 char command[MAXBUF];
2912                 strlcpy(data,udp_msg,512);
2913                 strlcpy(source,src,MAXBUF);
2914                 strlcpy(command,comd,MAXBUF);
2915                 udp_msg = old;
2916
2917                 // unused numeric:
2918                 // :services-dev.chatspike.net 433 Craig Craig :Nickname is registered to someone else
2919                 if (!strcmp(command,"433"))
2920                 {
2921                         token = '*';
2922                 }
2923                 if (!strcmp(command,"432"))
2924                 {
2925                         token = '*';
2926                 }
2927                 if (!strcmp(command,"PING"))
2928                 {
2929                         token = '*';
2930                 }
2931                 if (!strcmp(command,"NOTICE"))
2932                 {
2933                         snprintf(udp_msg,MAXBUF,"V %s %s",source,data);
2934                         log(DEBUG,"Rewrote NOTICE from services to: '%s'",udp_msg);
2935                         token = udp_msg[0];
2936                 }
2937                 if (!strcmp(command,"QUIT"))
2938                 {
2939                         if ((!udp_msg) || (!strcmp(data,"")) || (strcmp(data,":")))
2940                         {
2941                                 strcpy(data,":No reason");
2942                         }
2943                         if (!strcmp(data,":"))
2944                         {
2945                                 strcpy(data,":No reason");
2946                         }
2947                         snprintf(udp_msg,MAXBUF,"Q %s %s",source,data);
2948                         log(DEBUG,"Rewrote QUIT from services to: '%s'",udp_msg);
2949                         token = udp_msg[0];
2950                 }
2951                 if (!strcmp(command,"SQUIT"))
2952                 {
2953                         snprintf(udp_msg,MAXBUF,"& %s",source);
2954                         log(DEBUG,"Rewrote SQUIT from services to: '%s'",udp_msg);
2955                         token = udp_msg[0];
2956                 }
2957                 if (!strcmp(command,"SVSMODE"))
2958                 {
2959                         snprintf(udp_msg,MAXBUF,"m %s %s",source,data);
2960                         log(DEBUG,"Rewrote SVSMODE from services to: '%s'",udp_msg);
2961                         token = udp_msg[0];
2962                 }
2963                 if (!strcmp(command,"SVS2MODE"))
2964                 {
2965                         snprintf(udp_msg,MAXBUF,"m %s %s",source,data);
2966                         log(DEBUG,"Rewrote SVS2MODE from services to: '%s'",udp_msg);
2967                         token = udp_msg[0];
2968                 }
2969                 // todo: this wont work without u:lines
2970                 // in give_ops etc allow nick on a u:lined serv to do just about anything
2971                 if (!strcmp(command,"MODE"))
2972                 {
2973                         snprintf(udp_msg,MAXBUF,"m %s %s",source,data);
2974                         log(DEBUG,"Rewrote MODE from services to: '%s'",udp_msg);
2975                         token = udp_msg[0];
2976                 }
2977                 if (!strcmp(command,"KICK"))
2978                 {
2979                         snprintf(udp_msg,MAXBUF,"k %s %s",source,data);
2980                         log(DEBUG,"Rewrote KICK from services to: '%s'",udp_msg);
2981                         token = udp_msg[0];
2982                 }
2983                 if (!strcmp(command,"KILL"))
2984                 {
2985                         snprintf(udp_msg,MAXBUF,"K %s %s",source,data);
2986                         log(DEBUG,"Rewrote KILL from services to: '%s'",udp_msg);
2987                         token = udp_msg[0];
2988                 }
2989                 if (!strcmp(command,"SVSJOIN"))
2990                 {
2991                         snprintf(udp_msg,MAXBUF,"J %s",data);
2992                         NetSendToOne(tcp_host,udp_msg);
2993                         char* nick = strtok(data," ");
2994                         char* chan = strtok(NULL," ");
2995                         log(DEBUG,"Rewrote SVSJOIN from services to: '%s'",udp_msg);
2996                         userrec* u = Find(nick);
2997                         if (u)
2998                         {
2999                                 add_channel(u,chan,"",true);
3000                         }
3001                         token = udp_msg[0];
3002                 }
3003
3004         }
3005
3006         char* params = udp_msg + 2;
3007         char finalparam[1024];
3008         strcpy(finalparam," :xxxx");
3009         if (strstr(udp_msg," :")) {
3010                 strlcpy(finalparam,strstr(udp_msg," :"),1024);
3011         }
3012
3013
3014         if (token == '-') {
3015                 char* cookie = strtok(params," ");
3016                 char* servername = strtok(NULL," ");
3017                 char* serverdesc = finalparam+2;
3018
3019                 WriteOpers("AuthCookie CONNECT from %s (%s)",servername,tcp_host);
3020
3021                 for (int u = 0; u < auth_cookies.size(); u++)
3022                 {
3023                         if (auth_cookies[u] == atoi(cookie))
3024                         {
3025                                 WriteOpers("Allowed cookie from %s, is now part of the mesh",servername);
3026
3027
3028                                 for (int j = 0; j < 32; j++)
3029                                 {
3030                                         if (me[j] != NULL)
3031                                         {
3032                                                 for (int k = 0; k < me[j]->connectors.size(); k++)
3033                                                 {
3034                                                         if (!strcasecmp(me[j]->connectors[k].GetServerName().c_str(),tcp_host))
3035                                                         {
3036                                                                 me[j]->connectors[k].SetServerName(servername);
3037                                                                 me[j]->connectors[k].SetDescription(serverdesc);
3038                                                                 me[j]->connectors[k].SetState(STATE_CONNECTED);
3039                                                                 NetSendMyRoutingTable();
3040                                                                 return;
3041                                                         }
3042                                                 }
3043                                         }
3044                                         WriteOpers("\2WARNING!\2 %s sent us an authentication packet but we are not authenticating with this server right now! Possible intrusion attempt!",tcp_host);
3045                                         return;
3046                                 }
3047
3048
3049                                 return;
3050                         }
3051                 }
3052                 // bad cookie, bad bad! go sit in the corner!
3053                 WriteOpers("Bad cookie from %s!",servername);
3054                 return;
3055         }
3056         else
3057         if (token == 'S') {
3058                 // S test.chatspike.net password portn :ChatSpike InspIRCd test server
3059                 char* servername = strtok(params," ");
3060                 char* password = strtok(NULL," ");
3061                 char* myport = strtok(NULL," ");
3062                 char* revision = strtok(NULL," ");
3063                 char* serverdesc = finalparam+2;
3064
3065                 password = password;
3066
3067                 WriteOpers("CONNECT from %s (%s) (their port: %d)",servername,tcp_host,atoi(myport));
3068
3069                 ircd_connector* cn = serv->FindHost(servername);
3070
3071                 if (cn)
3072                 {
3073                         WriteOpers("CONNECT aborted: Server %s already exists from %s",servername,ServerName);
3074                         char buffer[MAXBUF];
3075                         snprintf(buffer,MAXBUF,"E :Server %s already exists!",servername);
3076                         serv->SendPacket(buffer,tcp_host);
3077                         RemoveServer(tcp_host);
3078                         return;
3079                 }
3080
3081                 if (atoi(revision) != GetRevision())
3082                 {
3083                         WriteOpers("CONNECT aborted: Could not link to %s, is an incompatible version %s, our version is %d",servername,revision,GetRevision());
3084                         char buffer[MAXBUF];
3085                         sprintf(buffer,"E :Version number mismatch");
3086                         serv->SendPacket(buffer,tcp_host);
3087                         RemoveServer(tcp_host);
3088                         RemoveServer(servername);
3089                         return;
3090                 }
3091
3092                 for (int j = 0; j < serv->connectors.size(); j++)
3093                 {
3094                         if (!strcasecmp(serv->connectors[j].GetServerName().c_str(),tcp_host))
3095                         {
3096                                 serv->connectors[j].SetServerName(servername);
3097                                 serv->connectors[j].SetDescription(serverdesc);
3098                                 serv->connectors[j].SetServerPort(atoi(myport));
3099                         }
3100                 }
3101
3102
3103                 char Link_ServerName[1024];
3104                 char Link_IPAddr[1024];
3105                 char Link_Port[1024];
3106                 char Link_Pass[1024];
3107                 char Link_SendPass[1024];
3108                 int LinkPort = 0;
3109
3110                 // search for a corresponding <link> block in the config files
3111                 for (int i = 0; i < ConfValueEnum("link",&config_f); i++)
3112                 {
3113                         ConfValue("link","name",i,Link_ServerName,&config_f);
3114                         ConfValue("link","ipaddr",i,Link_IPAddr,&config_f);
3115                         ConfValue("link","port",i,Link_Port,&config_f);
3116                         ConfValue("link","recvpass",i,Link_Pass,&config_f);
3117                         ConfValue("link","sendpass",i,Link_SendPass,&config_f);
3118                         log(DEBUG,"(%d) Comparing against name='%s', ipaddr='%s', port='%s', recvpass='%s'",i,Link_ServerName,Link_IPAddr,Link_Port,Link_Pass);
3119                         LinkPort = atoi(Link_Port);
3120                         if ((!strcasecmp(Link_ServerName,servername)) && (!strcmp(Link_Pass,password)))
3121                         {
3122                                 // we have a matching link line -
3123                                 // send a 'diminutive' server message back...
3124                                 snprintf(response,10240,"s %s %s :%s",ServerName,Link_SendPass,ServerDesc);
3125                                 serv->SendPacket(response,servername);
3126
3127                                 for (int t = 0; t < serv->connectors.size(); t++)
3128                                 {
3129                                         if (!strcasecmp(serv->connectors[t].GetServerName().c_str(),servername))
3130                                         {
3131                                                 serv->connectors[t].SetState(STATE_CONNECTED);
3132                                         }
3133                                 }
3134
3135                                 return;
3136                         }
3137                 }
3138                 char buffer[MAXBUF];
3139                 sprintf(buffer,"E :Access is denied (no matching link block)");
3140                 serv->SendPacket(buffer,tcp_host);
3141                 WriteOpers("CONNECT from %s denied, no matching link block",servername);
3142                 RemoveServer(tcp_host);
3143                 RemoveServer(servername);
3144                 return;
3145         }
3146         else
3147         if (token == 's') {
3148                 // S test.chatspike.net password :ChatSpike InspIRCd test server
3149                 char* servername = strtok(params," ");
3150                 char* password = strtok(NULL," ");
3151                 char* serverdesc = finalparam+2;
3152
3153                 password = password;
3154
3155                 // TODO: we should do a check here to ensure that this server is one we recently initiated a
3156                 // link with, and didnt hear an 's' or 'E' back from yet (these are the only two valid responses
3157                 // to an 'S' command. If we didn't recently send an 'S' to this server, theyre trying to spoof
3158                 // a connect, so put out an oper alert!
3159
3160                 // for now, just accept all, we'll fix that later.
3161                 WriteOpers("%s accepted our link credentials ",servername);
3162
3163                 char Link_ServerName[1024];
3164                 char Link_IPAddr[1024];
3165                 char Link_Port[1024];
3166                 char Link_Pass[1024];
3167                 char Link_SendPass[1024];
3168                 int LinkPort = 0;
3169
3170                 // search for a corresponding <link> block in the config files
3171                 for (int i = 0; i < ConfValueEnum("link",&config_f); i++)
3172                 {
3173                         ConfValue("link","name",i,Link_ServerName,&config_f);
3174                         ConfValue("link","ipaddr",i,Link_IPAddr,&config_f);
3175                         ConfValue("link","port",i,Link_Port,&config_f);
3176                         ConfValue("link","recvpass",i,Link_Pass,&config_f);
3177                         ConfValue("link","sendpass",i,Link_SendPass,&config_f);
3178                         log(DEBUG,"(%d) Comparing against name='%s', ipaddr='%s', port='%s', recvpass='%s'",i,Link_ServerName,Link_IPAddr,Link_Port,Link_Pass);
3179                         LinkPort = atoi(Link_Port);
3180                         if (!strcasecmp(Link_ServerName,servername))
3181                         {
3182                                 // matching link at this end too, we're all done!
3183                                 // at this point we must begin key exchange and insert this
3184                                 // server into our 'active' table.
3185                                 for (int j = 0; j < 32; j++)
3186                                 {
3187                                         if (me[j] != NULL)
3188                                         {
3189                                                 for (int k = 0; k < me[j]->connectors.size(); k++)
3190                                                 {
3191                                                         if (!strcasecmp(me[j]->connectors[k].GetServerName().c_str(),tcp_host))
3192                                                         {
3193                                                                 char buffer[MAXBUF];
3194                                                                 me[j]->connectors[k].SetDescription(serverdesc);
3195                                                                 me[j]->connectors[k].SetState(STATE_CONNECTED);
3196                                                                 sprintf(buffer,"X 0");
3197                                                                 serv->SendPacket(buffer,tcp_host);
3198                                                                 DoSync(me[j],tcp_host);
3199                                                                 NetSendMyRoutingTable();
3200                                                                 return;
3201                                                         }
3202                                                 }
3203                                         }
3204                                 }
3205                         }
3206                         else {
3207                                 log(DEBUG,"Server names '%s' and '%s' don't match",Link_ServerName,servername);
3208                         }
3209                 }
3210                 char buffer[MAXBUF];
3211                 sprintf(buffer,"E :Access is denied (no matching link block)");
3212                 serv->SendPacket(buffer,tcp_host);
3213                 WriteOpers("CONNECT from %s denied, no matching link block",servername);
3214                 RemoveServer(tcp_host);
3215                 RemoveServer(servername);
3216                 return;
3217         }
3218         else
3219         if (token == 'U') {
3220                 // U services.chatspike.net password :ChatSpike Services
3221                 //
3222                 // non-meshed link, used by services. Everything coming from a non-meshed link is auto broadcasted.
3223                 char* servername = strtok(params," ");
3224                 char* password = strtok(NULL," ");
3225                 char* serverdesc = finalparam+2;
3226
3227                 char Link_ServerName[1024];
3228                 char Link_IPAddr[1024];
3229                 char Link_Port[1024];
3230                 char Link_Pass[1024];
3231                 char Link_SendPass[1024];
3232                 int LinkPort = 0;
3233
3234                 log(DEBUG,"U-token linked server detected.\n\nservername='%s' password='%s'\n\n",servername,password);
3235
3236
3237                 for (int j = 0; j < 32; j++)
3238                 {
3239                         if (me[j] != NULL)
3240                         {
3241                                 for (int k = 0; k < me[j]->connectors.size(); k++)
3242                                 {
3243                                         if (!strcasecmp(me[j]->connectors[k].GetServerName().c_str(),servername))
3244                                         {
3245                                                 char buffer[MAXBUF];
3246                                                 sprintf(buffer,"E :Access is denied (Server exists in the mesh)");
3247                                                 serv->SendPacket(buffer,tcp_host);
3248                                                 WriteOpers("CONNECT from %s denied, \"%s\" already exists!",tcp_host,servername);
3249                                                 RemoveServer(tcp_host);
3250                                                 return;
3251                                         }
3252                                 }
3253                         }
3254                 }
3255
3256                 // search for a corresponding <link> block in the config files
3257                 for (int i = 0; i < ConfValueEnum("link",&config_f); i++)
3258                 {
3259                         ConfValue("link","name",i,Link_ServerName,&config_f);
3260                         ConfValue("link","ipaddr",i,Link_IPAddr,&config_f);
3261                         ConfValue("link","port",i,Link_Port,&config_f);
3262                         ConfValue("link","recvpass",i,Link_Pass,&config_f);
3263                         ConfValue("link","sendpass",i,Link_SendPass,&config_f);
3264                         log(DEBUG,"(%d) Comparing against name='%s', ipaddr='%s', port='%s', recvpass='%s'",i,Link_ServerName,Link_IPAddr,Link_Port,Link_Pass);
3265                         LinkPort = atoi(Link_Port);
3266                         if ((!strcasecmp(Link_ServerName,servername)) && (!strcmp(Link_Pass,password)))
3267                         {
3268                                 // matching link at this end too, we're all done!
3269                                 // at this point we must begin key exchange and insert this
3270                                 // server into our 'active' table.
3271                                 for (int j = 0; j < 32; j++)
3272                                 {
3273                                         if (me[j] != NULL)
3274                                         {
3275                                                 for (int k = 0; k < me[j]->connectors.size(); k++)
3276                                                 {
3277                                                         if (!strcasecmp(me[j]->connectors[k].GetServerName().c_str(),tcp_host))
3278                                                         {
3279                                                                 char buffer[MAXBUF];
3280                                                                 log(DEBUG,"Found matching link block");
3281                                                                 me[j]->connectors[k].SetDescription(serverdesc);
3282                                                                 me[j]->connectors[k].SetServerName(servername);
3283                                                                 me[j]->connectors[k].SetState(STATE_SERVICES);
3284                                                                 sprintf(buffer,"X 0");
3285                                                                 serv->SendPacket(buffer,servername);
3286                                                                 sprintf(buffer,"s %s %s %lu :%s",ServerName,Link_SendPass,LinkPort,ServerDesc);
3287                                                                 serv->SendPacket(buffer,servername);
3288                                                                 DoSync(me[j],servername);
3289                                                                 snprintf(buffer,MAXBUF,"H %s",servername);
3290                                                                 NetSendToAllExcept(servername,buffer);
3291                                                                 WriteOpers("Non-Mesh server %s has joined the network",servername);
3292                                                                 log(DEBUG,"******** SENDING MY ROUTING TABLE! *******");
3293                                                                 NetSendMyRoutingTable();
3294                                                                 return;
3295                                                         }
3296                                                 }
3297                                         }
3298                                 }
3299                         }
3300                         else {
3301                                 log(DEBUG,"Server names '%s' and '%s' don't match",Link_ServerName,servername);
3302                         }
3303                 }
3304                 log(DEBUG,"No matching link block found");
3305                 char buffer[MAXBUF];
3306                 sprintf(buffer,"E :Access is denied (no matching link block)");
3307                 serv->SendPacket(buffer,tcp_host);
3308                 WriteOpers("CONNECT from %s denied, no matching link block",servername);
3309                 RemoveServer(tcp_host);
3310                 RemoveServer(servername);
3311                 return;
3312         }
3313         else
3314         if (token == 'E') {
3315                 char* error_message = finalparam+2;
3316                 WriteOpers("ERROR from %s: %s",tcp_host,error_message);
3317                 return;
3318         }
3319         else {
3320                 for (int j = 0; j < 32; j++)
3321                 {
3322                         if (me[j] != NULL)
3323                         {
3324                                 for (int x = 0; x < me[j]->connectors.size(); x++)
3325                                 {
3326                                         log(DEBUG,"Servers are: '%s' '%s'",tcp_host,me[j]->connectors[x].GetServerName().c_str());
3327                                         if (!strcasecmp(me[j]->connectors[x].GetServerName().c_str(),tcp_host))
3328                                         {
3329                                                 if ((me[j]->connectors[x].GetState() == STATE_CONNECTED) || (me[j]->connectors[x].GetState() == STATE_SERVICES))
3330                                                 {
3331                                                         // found a valid ircd_connector.
3332                                                         process_restricted_commands(token,params,me[j],serv,tcp_host,me[j]->connectors[x].GetServerIP(),me[j]->connectors[x].GetServerPort());
3333                                                         return;
3334                                                 }
3335                                         }
3336                                 }
3337                         }
3338                 }
3339
3340                 log(DEBUG,"Unrecognised token or unauthenticated host in datagram from %s: %c",tcp_host,token);
3341         }
3342 }
3343
3344 long duration(const char* str)
3345 {
3346         char n_field[MAXBUF];
3347         long total = 0;
3348         const char* str_end = str + strlen(str);
3349         n_field[0] = 0;
3350
3351         for (char* i = (char*)str; i < str_end; i++)
3352         {
3353                 // if we have digits, build up a string for the value in n_field,
3354                 // up to 10 digits in size.
3355                 if ((*i >= '0') && (*i <= '9'))
3356                 {
3357                         strlcat(n_field,i,10);
3358                 }
3359                 else
3360                 {
3361                         // we dont have a digit, check for numeric tokens
3362                         switch (tolower(*i))
3363                         {
3364                                 case 's':
3365                                         total += atoi(n_field);
3366                                 break;
3367
3368                                 case 'm':
3369                                         total += (atoi(n_field)*duration_m);
3370                                 break;
3371
3372                                 case 'h':
3373                                         total += (atoi(n_field)*duration_h);
3374                                 break;
3375
3376                                 case 'd':
3377                                         total += (atoi(n_field)*duration_d);
3378                                 break;
3379
3380                                 case 'w':
3381                                         total += (atoi(n_field)*duration_w);
3382                                 break;
3383
3384                                 case 'y':
3385                                         total += (atoi(n_field)*duration_y);
3386                                 break;
3387                         }
3388                         n_field[0] = 0;
3389                 }
3390         }
3391         // add trailing seconds
3392         total += atoi(n_field);
3393
3394         return total;
3395 }
3396
3397
3398 void handle_kline(char **parameters, int pcnt, userrec *user)
3399 {
3400         if (pcnt >= 3)
3401         {
3402                 add_kline(duration(parameters[1]),user->nick,parameters[2],parameters[0]);
3403                 if (!duration(parameters[1]))
3404                 {
3405                         WriteOpers("*** %s added permenant K-line for %s.",user->nick,parameters[0]);
3406                 }
3407                 else
3408                 {
3409                         WriteOpers("*** %s added timed K-line for %s, expires in %d seconds.",user->nick,parameters[0],duration(parameters[1]));
3410                 }
3411         }
3412         else
3413         {
3414                 if (del_kline(parameters[0]))
3415                 {
3416                         WriteOpers("*** %s Removed K-line on %s.",user->nick,parameters[0]);
3417                 }
3418                 else
3419                 {
3420                         WriteServ(user->fd,"NOTICE %s :*** K-Line %s not found in list, try /stats k.",user->nick,parameters[0]);
3421                 }
3422         }
3423         apply_lines();
3424 }
3425
3426 void handle_eline(char **parameters, int pcnt, userrec *user)
3427 {
3428         if (pcnt >= 3)
3429         {
3430                 add_eline(duration(parameters[1]),user->nick,parameters[2],parameters[0]);
3431                 if (!duration(parameters[1]))
3432                 {
3433                         WriteOpers("*** %s added permenant E-line for %s.",user->nick,parameters[0]);
3434                 }
3435                 else
3436                 {
3437                         WriteOpers("*** %s added timed E-line for %s, expires in %d seconds.",user->nick,parameters[0],duration(parameters[1]));
3438                 }
3439         }
3440         else
3441         {
3442                 if (del_eline(parameters[0]))
3443                 {
3444                         WriteOpers("*** %s Removed E-line on %s.",user->nick,parameters[0]);
3445                 }
3446                 else
3447                 {
3448                         WriteServ(user->fd,"NOTICE %s :*** E-Line %s not found in list, try /stats e.",user->nick,parameters[0]);
3449                 }
3450         }
3451         // no need to apply the lines for an eline
3452 }
3453
3454 void handle_gline(char **parameters, int pcnt, userrec *user)
3455 {
3456         char netdata[MAXBUF];
3457         if (pcnt >= 3)
3458         {
3459                 add_gline(duration(parameters[1]),user->nick,parameters[2],parameters[0]);
3460                 // # <mask> <who-set-it> <time-set> <duration> :<reason>
3461                 snprintf(netdata,MAXBUF,"# %s %s %lu %lu :%s",parameters[0],user->nick,(unsigned long)TIME,(unsigned long)duration(parameters[1]),parameters[2]);
3462                 NetSendToAll(netdata);
3463                 if (!duration(parameters[1]))
3464                 {
3465                         WriteOpers("*** %s added permenant G-line for %s.",user->nick,parameters[0]);
3466                 }
3467                 else
3468                 {
3469                         WriteOpers("*** %s added timed G-line for %s, expires in %d seconds.",user->nick,parameters[0],duration(parameters[1]));
3470                 }
3471         }
3472         else
3473         {
3474                 if (del_gline(parameters[0]))
3475                 {
3476                         // . <mask> <who-removed-it>
3477                         snprintf(netdata,MAXBUF,". %s %s",parameters[0],user->nick);
3478                         WriteOpers("*** %s Removed G-line on %s.",user->nick,parameters[0]);
3479                 }
3480                 else
3481                 {
3482                         WriteServ(user->fd,"NOTICE %s :*** G-Line %s not found in list, try /stats g.",user->nick,parameters[0]);
3483                 }
3484         }
3485         apply_lines();
3486 }
3487
3488 void handle_zline(char **parameters, int pcnt, userrec *user)
3489 {
3490         if (pcnt >= 3)
3491         {
3492                 add_zline(duration(parameters[1]),user->nick,parameters[2],parameters[0]);
3493                 if (!duration(parameters[1]))
3494                 {
3495                         WriteOpers("*** %s added permenant Z-line for %s.",user->nick,parameters[0]);
3496                 }
3497                 else
3498                 {
3499                         WriteOpers("*** %s added timed Z-line for %s, expires in %d seconds.",user->nick,parameters[0],duration(parameters[1]));
3500                 }
3501         }
3502         else
3503         {
3504                 if (del_zline(parameters[0]))
3505                 {
3506                         WriteOpers("*** %s Removed Z-line on %s.",user->nick,parameters[0]);
3507                 }
3508                 else
3509                 {
3510                         WriteServ(user->fd,"NOTICE %s :*** Z-Line %s not found in list, try /stats Z.",user->nick,parameters[0]);
3511                 }
3512         }
3513         apply_lines();
3514 }
3515
3516 void handle_qline(char **parameters, int pcnt, userrec *user)
3517 {
3518         if (pcnt >= 3)
3519         {
3520                 add_qline(duration(parameters[1]),user->nick,parameters[2],parameters[0]);
3521                 if (!duration(parameters[1]))
3522                 {
3523                         WriteOpers("*** %s added permenant Q-line for %s.",user->nick,parameters[0]);
3524                 }
3525                 else
3526                 {
3527                         WriteOpers("*** %s added timed Q-line for %s, expires in %d seconds.",user->nick,parameters[0],duration(parameters[1]));
3528                 }
3529         }
3530         else
3531         {
3532                 if (del_qline(parameters[0]))
3533                 {
3534                         WriteOpers("*** %s Removed Q-line on %s.",user->nick,parameters[0]);
3535                 }
3536                 else
3537                 {
3538                         WriteServ(user->fd,"NOTICE %s :*** Q-Line %s not found in list, try /stats k.",user->nick,parameters[0]);
3539                 }
3540         }
3541         apply_lines();
3542 }
3543
3544