src/commands.cpp

   1 /*       +------------------------------------+
   2  *       | Inspire Internet Relay Chat Daemon |
   3  *       +------------------------------------+
   4  *
   5  *  Inspire is copyright (C) 2002-2004 ChatSpike-Dev.
   6  *                       E-mail:
   7  *                <brain@chatspike.net>
   8  *                <Craig@chatspike.net>
   9  *
  10  * Written by Craig Edwards, Craig McLure, and others.
  11  * This program is free but copyrighted software; see
  12  *            the file COPYING for details.
  13  *
  14  * ---------------------------------------------------
  15  */
  16
  17 #include "inspircd.h"
  18 #include "inspircd_io.h"
  19 #include "inspircd_util.h"
  20 #include "inspircd_config.h"
  21 #include <unistd.h>
  22 #include <fcntl.h>
  23 #include <sys/errno.h>
  24 #include <sys/ioctl.h>
  25 #include <sys/utsname.h>
  26 #include <cstdio>
  27 #include <time.h>
  28 #include <string>
  29 #ifdef GCC3
  30 #include <ext/hash_map>
  31 #else
  32 #include <hash_map>
  33 #endif
  34 #include <map>
  35 #include <sstream>
  36 #include <vector>
  37 #include <errno.h>
  38 #include <deque>
  39 #include <errno.h>
  40 #include <unistd.h>
  41 #include <sched.h>
  42 #include "connection.h"
  43 #include "users.h"
  44 #include "servers.h"
  45 #include "ctables.h"
  46 #include "globals.h"
  47 #include "modules.h"
  48 #include "dynamic.h"
  49 #include "wildcard.h"
  50 #include "message.h"
  51 #include "mode.h"
  52 #include "xline.h"
  53 #include "inspstring.h"
  54 #include "dnsqueue.h"
  55
  56 #ifdef GCC3
  57 #define nspace __gnu_cxx
  58 #else
  59 #define nspace std
  60 #endif
  61
  62 using namespace std;
  63
  64 extern int MODCOUNT;
  65 extern std::vector<Module*> modules;
  66 extern std::vector<ircd_module*> factory;
  67
  68 extern int LogLevel;
  69 extern char ServerName[MAXBUF];
  70 extern char Network[MAXBUF];
  71 extern char ServerDesc[MAXBUF];
  72 extern char AdminName[MAXBUF];
  73 extern char AdminEmail[MAXBUF];
  74 extern char AdminNick[MAXBUF];
  75 extern char diepass[MAXBUF];
  76 extern char restartpass[MAXBUF];
  77 extern char motd[MAXBUF];
  78 extern char rules[MAXBUF];
  79 extern char list[MAXBUF];
  80 extern char PrefixQuit[MAXBUF];
  81 extern char DieValue[MAXBUF];
  82
  83 extern int debugging;
  84 extern int WHOWAS_STALE;
  85 extern int WHOWAS_MAX;
  86 extern int DieDelay;
  87 extern time_t startup_time;
  88 extern int NetBufferSize;
  89 extern int MaxWhoResults;
  90 extern time_t nb_start;
  91
  92 extern bool nofork;
  93
  94 extern time_t TIME;
  95
  96 extern std::vector<std::string> module_names;
  97
  98 extern char MyExecutable[1024];
  99 extern int boundPortCount;
 100 extern int portCount;
 101 extern int UDPportCount;
 102 extern int ports[MAXSOCKS];
 103 extern int defaultRoute;
 104
 105 extern std::vector<long> auth_cookies;
 106 extern std::stringstream config_f;
 107
 108 extern serverrec* me[32];
 109
 110 extern FILE *log_file;
 111
 112 extern ClassVector Classes;
 113
 114 const long duration_m = 60;
 115 const long duration_h = duration_m * 60;
 116 const long duration_d = duration_h * 24;
 117 const long duration_w = duration_d * 7;
 118 const long duration_y = duration_w * 52;
 119
 120 namespace nspace
 121 {
 122 #ifdef GCC34
 123         template<> struct hash<in_addr>
 124 #else
 125         template<> struct nspace::hash<in_addr>
 126 #endif
 127         {
 128                 size_t operator()(const struct in_addr &a) const
 129                 {
 130                         size_t q;
 131                         memcpy(&q,&a,sizeof(size_t));
 132                         return q;
 133                 }
 134         };
 135 #ifdef GCC34
 136         template<> struct hash<string>
 137 #else
 138         template<> struct nspace::hash<string>
 139 #endif
 140         {
 141                 size_t operator()(const string &s) const
 142                 {
 143                         char a[MAXBUF];
 144                         static struct hash<const char *> strhash;
 145                         strlcpy(a,s.c_str(),MAXBUF);
 146                         strlower(a);
 147                         return strhash(a);
 148                 }
 149         };
 150 }
 151
 152
 153 struct StrHashComp
 154 {
 155
 156         bool operator()(const string& s1, const string& s2) const
 157         {
 158                 char a[MAXBUF],b[MAXBUF];
 159                 strlcpy(a,s1.c_str(),MAXBUF);
 160                 strlcpy(b,s2.c_str(),MAXBUF);
 161                 strlower(a);
 162                 strlower(b);
 163                 return (strcasecmp(a,b) == 0);
 164         }
 165
 166 };
 167
 168 struct InAddr_HashComp
 169 {
 170
 171         bool operator()(const in_addr &s1, const in_addr &s2) const
 172         {
 173                 size_t q;
 174                 size_t p;
 175
 176                 memcpy(&q,&s1,sizeof(size_t));
 177                 memcpy(&p,&s2,sizeof(size_t));
 178
 179                 return (q == p);
 180         }
 181
 182 };
 183
 184
 185 typedef nspace::hash_map<std::string, userrec*, nspace::hash<string>, StrHashComp> user_hash;
 186 typedef nspace::hash_map<std::string, chanrec*, nspace::hash<string>, StrHashComp> chan_hash;
 187 typedef nspace::hash_map<in_addr,string*, nspace::hash<in_addr>, InAddr_HashComp> address_cache;
 188 typedef std::deque<command_t> command_table;
 189
 190
 191 extern user_hash clientlist;
 192 extern chan_hash chanlist;
 193 extern user_hash whowas;
 194 extern command_table cmdlist;
 195 extern file_cache MOTD;
 196 extern file_cache RULES;
 197 extern address_cache IP;
 198
 199
 200 void handle_join(char **parameters, int pcnt, userrec *user)
 201 {
 202         chanrec* Ptr;
 203
 204         if (loop_call(handle_join,parameters,pcnt,user,0,0,1))
 205                 return;
 206         if (parameters[0][0] == '#')
 207         {
 208                 Ptr = add_channel(user,parameters[0],parameters[1],false);
 209         }
 210 }
 211
 212
 213 void handle_part(char **parameters, int pcnt, userrec *user)
 214 {
 215         if (pcnt > 1)
 216         {
 217                 if (loop_call(handle_part,parameters,pcnt,user,0,pcnt-2,0))
 218                         return;
 219                 del_channel(user,parameters[0],parameters[1],false);
 220         }
 221         else
 222         {
 223                 if (loop_call(handle_part,parameters,pcnt,user,0,pcnt-1,0))
 224                         return;
 225                 del_channel(user,parameters[0],NULL,false);
 226         }
 227 }
 228
 229 void handle_kick(char **parameters, int pcnt, userrec *user)
 230 {
 231         chanrec* Ptr = FindChan(parameters[0]);
 232         userrec* u   = Find(parameters[1]);
 233
 234         if ((!u) || (!Ptr))
 235         {
 236                 WriteServ(user->fd,"401 %s %s :No such nick/channel",user->nick, parameters[0]);
 237                 return;
 238         }
 239
 240         if (!has_channel(user,Ptr))
 241         {
 242                 WriteServ(user->fd,"442 %s %s :You're not on that channel!",user->nick, parameters[0]);
 243                 return;
 244         }
 245
 246         char reason[MAXBUF];
 247
 248         if (pcnt > 2)
 249         {
 250                 strlcpy(reason,parameters[2],MAXBUF);
 251                 if (strlen(reason)>MAXKICK)
 252                 {
 253                         reason[MAXKICK-1] = '\0';
 254                 }
 255
 256                 kick_channel(user,u,Ptr,reason);
 257         }
 258         else
 259         {
 260                 strlcpy(reason,user->nick,MAXBUF);
 261                 kick_channel(user,u,Ptr,reason);
 262         }
 263
 264         // this must be propogated so that channel membership is kept in step network-wide
 265         char buffer[MAXBUF];
 266         snprintf(buffer,MAXBUF,"k %s %s %s :%s",user->nick,u->nick,Ptr->name,reason);
 267         NetSendToAll(buffer);
 268 }
 269
 270 void handle_loadmodule(char **parameters, int pcnt, userrec *user)
 271 {
 272         if (LoadModule(parameters[0]))
 273         {
 274                 WriteOpers("*** NEW MODULE: %s",parameters[0]);
 275                 WriteServ(user->fd,"975 %s %s :Module successfully loaded.",user->nick, parameters[0]);
 276         }
 277         else
 278         {
 279                 WriteServ(user->fd,"974 %s %s :Failed to load module: %s",user->nick, parameters[0],ModuleError());
 280         }
 281 }
 282
 283 void handle_unloadmodule(char **parameters, int pcnt, userrec *user)
 284 {
 285         if (UnloadModule(parameters[0]))
 286         {
 287                 WriteOpers("*** MODULE UNLOADED: %s",parameters[0]);
 288                 WriteServ(user->fd,"973 %s %s :Module successfully unloaded.",user->nick, parameters[0]);
 289         }
 290         else
 291         {
 292                 WriteServ(user->fd,"972 %s %s :Failed to unload module: %s",user->nick, parameters[0],ModuleError());
 293         }
 294 }
 295
 296 void handle_die(char **parameters, int pcnt, userrec *user)
 297 {
 298         log(DEBUG,"die: %s",user->nick);
 299         if (!strcmp(parameters[0],diepass))
 300         {
 301                 WriteOpers("*** DIE command from %s!%s@%s, terminating...",user->nick,user->ident,user->host);
 302                 sleep(DieDelay);
 303                 Exit(ERROR);
 304         }
 305         else
 306         {
 307                 WriteOpers("*** Failed DIE Command from %s!%s@%s.",user->nick,user->ident,user->host);
 308         }
 309 }
 310
 311 void handle_restart(char **parameters, int pcnt, userrec *user)
 312 {
 313         char *argv[32];
 314         log(DEFAULT,"Restart: %s",user->nick);
 315         if (!strcmp(parameters[0],restartpass))
 316         {
 317                 WriteOpers("*** RESTART command from %s!%s@%s, restarting server.",user->nick,user->ident,user->host);
 318
 319                 argv[0] = MyExecutable;
 320                 argv[1] = "-wait";
 321                 if (nofork)
 322                 {
 323                         argv[2] = "-nofork";
 324                 }
 325                 else
 326                 {
 327                         argv[2] = NULL;
 328                 }
 329                 argv[3] = NULL;
 330
 331                 // close ALL file descriptors
 332                 send_error("Server restarting.");
 333                 sleep(1);
 334                 for (int i = 0; i < 65536; i++)
 335                 {
 336                         int on = 1;
 337                         struct linger linger = { 0 };
 338                         setsockopt(i, SOL_SOCKET, SO_REUSEADDR, (const char*)&on, sizeof(on));
 339                         linger.l_onoff = 1;
 340                         linger.l_linger = 1;
 341                         setsockopt(i, SOL_SOCKET, SO_LINGER, (const char*)&linger,sizeof(linger));
 342                         Blocking(i);
 343                         close(i);
 344                 }
 345                 sleep(2);
 346
 347                 execv(MyExecutable,argv);
 348
 349                 exit(0);
 350         }
 351         else
 352         {
 353                 WriteOpers("*** Failed RESTART Command from %s!%s@%s.",user->nick,user->ident,user->host);
 354         }
 355 }
 356
 357 void handle_kill(char **parameters, int pcnt, userrec *user)
 358 {
 359         userrec *u = Find(parameters[0]);
 360         char killreason[MAXBUF];
 361
 362         log(DEBUG,"kill: %s %s",parameters[0],parameters[1]);
 363         if (u)
 364         {
 365                 log(DEBUG,"into kill mechanism");
 366                 int MOD_RESULT = 0;
 367                 FOREACH_RESULT(OnKill(user,u,parameters[1]));
 368                 if (MOD_RESULT) {
 369                         log(DEBUG,"A module prevented the kill with result %d",MOD_RESULT);
 370                         return;
 371                 }
 372
 373                 if (strcmp(ServerName,u->server))
 374                 {
 375                         // remote kill
 376                         WriteOpers("*** Remote kill by %s: %s!%s@%s (%s)",user->nick,u->nick,u->ident,u->host,parameters[1]);
 377                         snprintf(killreason,MAXBUF,"[%s] Killed (%s (%s))",ServerName,user->nick,parameters[1]);
 378                         WriteCommonExcept(u,"QUIT :%s",killreason);
 379                         // K token must go to ALL servers!!!
 380                         char buffer[MAXBUF];
 381                         snprintf(buffer,MAXBUF,"K %s %s :%s",user->nick,u->nick,killreason);
 382                         NetSendToAll(buffer);
 383
 384                         user_hash::iterator iter = clientlist.find(u->nick);
 385                         if (iter != clientlist.end())
 386                         {
 387                                 log(DEBUG,"deleting user hash value %d",iter->second);
 388                                 clientlist.erase(iter);
 389                         }
 390                         if (u->registered == 7)
 391                         {
 392                                 purge_empty_chans(u);
 393                         }
 394                         delete u;
 395                 }
 396                 else
 397                 {
 398                         // local kill
 399                         log(DEFAULT,"LOCAL KILL: %s :%s!%s!%s (%s)", u->nick, ServerName,user->dhost,user->nick,parameters[1]);
 400                         WriteTo(user, u, "KILL %s :%s!%s!%s (%s)", u->nick, ServerName,user->dhost,user->nick,parameters[1]);
 401                         WriteOpers("*** Local Kill by %s: %s!%s@%s (%s)",user->nick,u->nick,u->ident,u->host,parameters[1]);
 402                         snprintf(killreason,MAXBUF,"Killed (%s (%s))",user->nick,parameters[1]);
 403                         kill_link(u,killreason);
 404                 }
 405         }
 406         else
 407         {
 408                 WriteServ(user->fd,"401 %s %s :No such nick/channel",user->nick, parameters[0]);
 409         }
 410 }
 411
 412 void handle_summon(char **parameters, int pcnt, userrec *user)
 413 {
 414         WriteServ(user->fd,"445 %s :SUMMON has been disabled (depreciated command)",user->nick);
 415 }
 416
 417 void handle_users(char **parameters, int pcnt, userrec *user)
 418 {
 419         WriteServ(user->fd,"445 %s :USERS has been disabled (depreciated command)",user->nick);
 420 }
 421
 422 void handle_pass(char **parameters, int pcnt, userrec *user)
 423 {
 424         // Check to make sure they havnt registered -- Fix by FCS
 425         if (user->registered == 7)
 426         {
 427                 WriteServ(user->fd,"462 %s :You may not reregister",user->nick);
 428                 return;
 429         }
 430         strlcpy(user->password,parameters[0],MAXBUF);
 431         if (!strcasecmp(parameters[0],Passwd(user)))
 432         {
 433                 user->haspassed = true;
 434         }
 435 }
 436
 437 void handle_invite(char **parameters, int pcnt, userrec *user)
 438 {
 439         userrec* u = Find(parameters[0]);
 440         chanrec* c = FindChan(parameters[1]);
 441
 442         if ((!c) || (!u))
 443         {
 444                 if (!c)
 445                 {
 446                         WriteServ(user->fd,"401 %s %s :No such nick/channel",user->nick, parameters[1]);
 447                 }
 448                 else
 449                 {
 450                         if (c->inviteonly)
 451                         {
 452                                 WriteServ(user->fd,"401 %s %s :No such nick/channel",user->nick, parameters[0]);
 453                         }
 454                 }
 455
 456                 return;
 457         }
 458
 459         if (c->inviteonly)
 460         {
 461                 if (cstatus(user,c) < STATUS_HOP)
 462                 {
 463                         WriteServ(user->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel",user->nick, c->name);
 464                         return;
 465                 }
 466         }
 467         if (has_channel(u,c))
 468         {
 469                 WriteServ(user->fd,"443 %s %s %s :Is already on channel %s",user->nick,u->nick,c->name,c->name);
 470                 return;
 471         }
 472         if (!has_channel(user,c))
 473         {
 474                 WriteServ(user->fd,"442 %s %s :You're not on that channel!",user->nick, c->name);
 475                 return;
 476         }
 477
 478         int MOD_RESULT = 0;
 479         FOREACH_RESULT(OnUserPreInvite(user,u,c));
 480         if (MOD_RESULT == 1) {
 481                 return;
 482         }
 483
 484         u->InviteTo(c->name);
 485         WriteFrom(u->fd,user,"INVITE %s :%s",u->nick,c->name);
 486         WriteServ(user->fd,"341 %s %s %s",user->nick,u->nick,c->name);
 487
 488         // i token must go to ALL servers!!!
 489         char buffer[MAXBUF];
 490         snprintf(buffer,MAXBUF,"i %s %s %s",u->nick,user->nick,c->name);
 491         NetSendToAll(buffer);
 492 }
 493
 494 void handle_topic(char **parameters, int pcnt, userrec *user)
 495 {
 496         chanrec* Ptr;
 497
 498         if (pcnt == 1)
 499         {
 500                 if (strlen(parameters[0]) <= CHANMAX)
 501                 {
 502                         Ptr = FindChan(parameters[0]);
 503                         if (Ptr)
 504                         {
 505                                 if (((Ptr) && (!has_channel(user,Ptr))) && (Ptr->secret))
 506                                 {
 507                                         WriteServ(user->fd,"442 %s %s :You're not on that channel!",user->nick, Ptr->name);
 508                                         return;
 509                                 }
 510                                 if (Ptr->topicset)
 511                                 {
 512                                         WriteServ(user->fd,"332 %s %s :%s", user->nick, Ptr->name, Ptr->topic);
 513                                         WriteServ(user->fd,"333 %s %s %s %d", user->nick, Ptr->name, Ptr->setby, Ptr->topicset);
 514                                 }
 515                                 else
 516                                 {
 517                                         WriteServ(user->fd,"331 %s %s :No topic is set.", user->nick, Ptr->name);
 518                                 }
 519                         }
 520                         else
 521                         {
 522                                 WriteServ(user->fd,"401 %s %s :No such nick/channel",user->nick, parameters[0]);
 523                         }
 524                 }
 525                 return;
 526         }
 527         else if (pcnt>1)
 528         {
 529                 if (strlen(parameters[0]) <= CHANMAX)
 530                 {
 531                         Ptr = FindChan(parameters[0]);
 532                         if (Ptr)
 533                         {
 534                                 if ((Ptr) && (!has_channel(user,Ptr)))
 535                                 {
 536                                         WriteServ(user->fd,"442 %s %s :You're not on that channel!",user->nick, Ptr->name);
 537                                         return;
 538                                 }
 539                                 if ((Ptr->topiclock) && (cstatus(user,Ptr)<STATUS_HOP))
 540                                 {
 541                                         WriteServ(user->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel", user->nick, Ptr->name);
 542                                         return;
 543                                 }
 544
 545                                 char topic[MAXBUF];
 546                                 strlcpy(topic,parameters[1],MAXBUF);
 547                                 if (strlen(topic)>MAXTOPIC)
 548                                 {
 549                                         topic[MAXTOPIC-1] = '\0';
 550                                 }
 551
 552                                 if (!strcasecmp(user->server,ServerName))
 553                                 {
 554                                         int MOD_RESULT = 0;
 555                                         FOREACH_RESULT(OnLocalTopicChange(user,Ptr,topic));
 556                                         if (MOD_RESULT)
 557                                                 return;
 558                                 }
 559
 560                                 strlcpy(Ptr->topic,topic,MAXBUF);
 561                                 strlcpy(Ptr->setby,user->nick,NICKMAX);
 562                                 Ptr->topicset = TIME;
 563                                 WriteChannel(Ptr,user,"TOPIC %s :%s",Ptr->name, Ptr->topic);
 564
 565                                 // t token must go to ALL servers!!!
 566                                 char buffer[MAXBUF];
 567                                 snprintf(buffer,MAXBUF,"t %s %s :%s",user->nick,Ptr->name,topic);
 568                                 NetSendToAll(buffer);
 569                         }
 570                         else
 571                         {
 572                                 WriteServ(user->fd,"401 %s %s :No such nick/channel",user->nick, parameters[0]);
 573                         }
 574                 }
 575         }
 576 }
 577
 578 void handle_names(char **parameters, int pcnt, userrec *user)
 579 {
 580         chanrec* c;
 581
 582         if (!pcnt)
 583         {
 584                 WriteServ(user->fd,"366 %s * :End of /NAMES list.",user->nick);
 585                 return;
 586         }
 587
 588         if (loop_call(handle_names,parameters,pcnt,user,0,pcnt-1,0))
 589                 return;
 590         c = FindChan(parameters[0]);
 591         if (c)
 592         {
 593                 if (((c) && (!has_channel(user,c))) && (c->secret))
 594                 {
 595                       WriteServ(user->fd,"442 %s %s :You're not on that channel!",user->nick, c->name);
 596                       return;
 597                 }
 598                 userlist(user,c);
 599                 WriteServ(user->fd,"366 %s %s :End of /NAMES list.", user->nick, c->name);
 600         }
 601         else
 602         {
 603                 WriteServ(user->fd,"401 %s %s :No such nick/channel",user->nick, parameters[0]);
 604         }
 605 }
 606
 607 void handle_privmsg(char **parameters, int pcnt, userrec *user)
 608 {
 609         userrec *dest;
 610         chanrec *chan;
 611
 612         user->idle_lastmsg = TIME;
 613
 614         if (loop_call(handle_privmsg,parameters,pcnt,user,0,pcnt-2,0))
 615                 return;
 616         if (parameters[0][0] == '#')
 617         {
 618                 chan = FindChan(parameters[0]);
 619                 if (chan)
 620                 {
 621                         if ((chan->noexternal) && (!has_channel(user,chan)))
 622                         {
 623                                 WriteServ(user->fd,"404 %s %s :Cannot send to channel (no external messages)", user->nick, chan->name);
 624                                 return;
 625                         }
 626                         if ((chan->moderated) && (cstatus(user,chan)<STATUS_VOICE))
 627                         {
 628                                 WriteServ(user->fd,"404 %s %s :Cannot send to channel (+m)", user->nick, chan->name);
 629                                 return;
 630                         }
 631
 632                         int MOD_RESULT = 0;
 633
 634                         std::string temp = parameters[1];
 635                         FOREACH_RESULT(OnUserPreMessage(user,chan,TYPE_CHANNEL,temp));
 636                         if (MOD_RESULT) {
 637                                 return;
 638                         }
 639                         parameters[1] = (char*)temp.c_str();
 640
 641                         ChanExceptSender(chan, user, "PRIVMSG %s :%s", chan->name, parameters[1]);
 642
 643                         // if any users of this channel are on remote servers, broadcast the packet
 644                         char buffer[MAXBUF];
 645                         snprintf(buffer,MAXBUF,"P %s %s :%s",user->nick,chan->name,parameters[1]);
 646                         NetSendToCommon(user,buffer);
 647                 }
 648                 else
 649                 {
 650                         /* no such nick/channel */
 651                         WriteServ(user->fd,"401 %s %s :No such nick/channel",user->nick, parameters[0]);
 652                 }
 653                 return;
 654         }
 655
 656         dest = Find(parameters[0]);
 657         if (dest)
 658         {
 659                 if (strcmp(dest->awaymsg,""))
 660                 {
 661                         /* auto respond with aweh msg */
 662                         WriteServ(user->fd,"301 %s %s :%s",user->nick,dest->nick,dest->awaymsg);
 663                 }
 664
 665                 int MOD_RESULT = 0;
 666
 667                 std::string temp = parameters[1];
 668                 FOREACH_RESULT(OnUserPreMessage(user,dest,TYPE_USER,temp));
 669                 if (MOD_RESULT) {
 670                         return;
 671                 }
 672                 parameters[1] = (char*)temp.c_str();
 673
 674
 675
 676                 if (!strcmp(dest->server,user->server))
 677                 {
 678                         // direct write, same server
 679                         WriteTo(user, dest, "PRIVMSG %s :%s", dest->nick, parameters[1]);
 680                 }
 681                 else
 682                 {
 683                         char buffer[MAXBUF];
 684                         snprintf(buffer,MAXBUF,"P %s %s :%s",user->nick,dest->nick,parameters[1]);
 685                         NetSendToOne(dest->server,buffer);
 686                 }
 687         }
 688         else
 689         {
 690                 /* no such nick/channel */
 691                 WriteServ(user->fd,"401 %s %s :No such nick/channel",user->nick, parameters[0]);
 692         }
 693 }
 694
 695 void handle_notice(char **parameters, int pcnt, userrec *user)
 696 {
 697         userrec *dest;
 698         chanrec *chan;
 699
 700         user->idle_lastmsg = TIME;
 701
 702         if (loop_call(handle_notice,parameters,pcnt,user,0,pcnt-2,0))
 703                 return;
 704         if (parameters[0][0] == '#')
 705         {
 706                 chan = FindChan(parameters[0]);
 707                 if (chan)
 708                 {
 709                         if ((chan->noexternal) && (!has_channel(user,chan)))
 710                         {
 711                                 WriteServ(user->fd,"404 %s %s :Cannot send to channel (no external messages)", user->nick, chan->name);
 712                                 return;
 713                         }
 714                         if ((chan->moderated) && (cstatus(user,chan)<STATUS_VOICE))
 715                         {
 716                                 WriteServ(user->fd,"404 %s %s :Cannot send to channel (+m)", user->nick, chan->name);
 717                                 return;
 718                         }
 719
 720                         int MOD_RESULT = 0;
 721
 722                         std::string temp = parameters[1];
 723                         FOREACH_RESULT(OnUserPreNotice(user,chan,TYPE_CHANNEL,temp));
 724                         if (MOD_RESULT) {
 725                                 return;
 726                         }
 727                         parameters[1] = (char*)temp.c_str();
 728
 729                         ChanExceptSender(chan, user, "NOTICE %s :%s", chan->name, parameters[1]);
 730
 731                         // if any users of this channel are on remote servers, broadcast the packet
 732                         char buffer[MAXBUF];
 733                         snprintf(buffer,MAXBUF,"V %s %s :%s",user->nick,chan->name,parameters[1]);
 734                         NetSendToCommon(user,buffer);
 735                 }
 736                 else
 737                 {
 738                         /* no such nick/channel */
 739                         WriteServ(user->fd,"401 %s %s :No such nick/channel",user->nick, parameters[0]);
 740                 }
 741                 return;
 742         }
 743
 744         dest = Find(parameters[0]);
 745         if (dest)
 746         {
 747                 int MOD_RESULT = 0;
 748
 749                 std::string temp = parameters[1];
 750                 FOREACH_RESULT(OnUserPreNotice(user,dest,TYPE_USER,temp));
 751                 if (MOD_RESULT) {
 752                         return;
 753                 }
 754                 parameters[1] = (char*)temp.c_str();
 755
 756                 if (!strcmp(dest->server,user->server))
 757                 {
 758                         // direct write, same server
 759                         WriteTo(user, dest, "NOTICE %s :%s", dest->nick, parameters[1]);
 760                 }
 761                 else
 762                 {
 763                         char buffer[MAXBUF];
 764                         snprintf(buffer,MAXBUF,"V %s %s :%s",user->nick,dest->nick,parameters[1]);
 765                         NetSendToOne(dest->server,buffer);
 766                 }
 767         }
 768         else
 769         {
 770                 /* no such nick/channel */
 771                 WriteServ(user->fd,"401 %s %s :No such nick/channel",user->nick, parameters[0]);
 772         }
 773 }
 774
 775 void handle_server(char **parameters, int pcnt, userrec *user)
 776 {
 777         WriteServ(user->fd,"666 %s :You cannot identify as a server, you are a USER. IRC Operators informed.",user->nick);
 778         WriteOpers("*** WARNING: %s attempted to issue a SERVER command and is registered as a user!",user->nick);
 779 }
 780
 781 void handle_info(char **parameters, int pcnt, userrec *user)
 782 {
 783         WriteServ(user->fd,"371 %s :. o O (The Inspire Internet Relay Chat Server) O o .",user->nick);
 784         WriteServ(user->fd,"371 %s : ",user->nick);
 785         WriteServ(user->fd,"371 %s :Core developers: Craig Edwards (Brain)",user->nick);
 786         WriteServ(user->fd,"371 %s :                 Craig McLure",user->nick);
 787         WriteServ(user->fd,"371 %s : ",user->nick);
 788         WriteServ(user->fd,"371 %s :Contributors:    typobox43",user->nick);
 789         WriteServ(user->fd,"371 %s :                 w00t",user->nick);
 790         WriteServ(user->fd,"371 %s :                 Om",user->nick);
 791         WriteServ(user->fd,"371 %s :                 Jazza",user->nick);
 792         WriteServ(user->fd,"371 %s : ",user->nick);
 793         WriteServ(user->fd,"371 %s :Testers:         CC",user->nick);
 794         WriteServ(user->fd,"371 %s :                 Piggles",user->nick);
 795         WriteServ(user->fd,"371 %s :                 Foamy",user->nick);
 796         WriteServ(user->fd,"371 %s :                 Hart",user->nick);
 797         WriteServ(user->fd,"371 %s :                 RageD",user->nick);
 798         WriteServ(user->fd,"371 %s :                 [ed]",user->nick);
 799         WriteServ(user->fd,"371 %s :                 Azhrarn",user->nick);
 800         WriteServ(user->fd,"371 %s :                 nenolod",user->nick);
 801         WriteServ(user->fd,"371 %s :                 luigiman",user->nick);
 802         WriteServ(user->fd,"371 %s :                 Chu",user->nick);
 803         WriteServ(user->fd,"371 %s :                 aquanight",user->nick);
 804         WriteServ(user->fd,"371 %s :                 xptek",user->nick);
 805         WriteServ(user->fd,"371 %s :                 Grantlinks",user->nick);
 806         WriteServ(user->fd,"371 %s :                 Rob",user->nick);
 807         WriteServ(user->fd,"371 %s :                 angelic",user->nick);
 808         WriteServ(user->fd,"371 %s :                 Jason",user->nick);
 809         WriteServ(user->fd,"371 %s : ",user->nick);
 810         WriteServ(user->fd,"371 %s :Thanks to irc-junkie and searchirc",user->nick);
 811         WriteServ(user->fd,"371 %s :for the nice comments and the help",user->nick);
 812         WriteServ(user->fd,"371 %s :you gave us in attracting users to",user->nick);
 813         WriteServ(user->fd,"371 %s :this software.",user->nick);
 814         WriteServ(user->fd,"371 %s : ",user->nick);
 815         WriteServ(user->fd,"371 %s :Best experienced with: An IRC client.",user->nick);
 816         FOREACH_MOD OnInfo(user);
 817         WriteServ(user->fd,"374 %s :End of /INFO list",user->nick);
 818 }
 819
 820 void handle_time(char **parameters, int pcnt, userrec *user)
 821 {
 822         time_t rawtime;
 823         struct tm * timeinfo;
 824
 825         time ( &rawtime );
 826         timeinfo = localtime ( &rawtime );
 827         WriteServ(user->fd,"391 %s %s :%s",user->nick,ServerName, asctime (timeinfo) );
 828
 829 }
 830
 831 void handle_whois(char **parameters, int pcnt, userrec *user)
 832 {
 833         userrec *dest;
 834
 835         if (loop_call(handle_whois,parameters,pcnt,user,0,pcnt-1,0))
 836                 return;
 837         dest = Find(parameters[0]);
 838         if (dest)
 839         {
 840                 // bug found by phidjit - were able to whois an incomplete connection if it had sent a NICK or USER
 841                 if (dest->registered == 7)
 842                 {
 843                         WriteServ(user->fd,"311 %s %s %s %s * :%s",user->nick, dest->nick, dest->ident, dest->dhost, dest->fullname);
 844                         if ((user == dest) || (strchr(user->modes,'o')))
 845                         {
 846                                 WriteServ(user->fd,"378 %s %s :is connecting from *@%s",user->nick, dest->nick, dest->host);
 847                         }
 848                         if (strcmp(chlist(dest),""))
 849                         {
 850                                 WriteServ(user->fd,"319 %s %s :%s",user->nick, dest->nick, chlist(dest));
 851                         }
 852                         WriteServ(user->fd,"312 %s %s %s :%s",user->nick, dest->nick, dest->server, GetServerDescription(dest->server).c_str());
 853                         if (strcmp(dest->awaymsg,""))
 854                         {
 855                                 WriteServ(user->fd,"301 %s %s :%s",user->nick, dest->nick, dest->awaymsg);
 856                         }
 857                         if ((strchr(dest->modes,'o')) && (strcmp(dest->oper,"")))
 858                         {
 859                                 WriteServ(user->fd,"313 %s %s :is %s %s on %s",user->nick, dest->nick,
 860                                 (strchr("aeiou",dest->oper[0]) ? "an" : "a"),dest->oper, Network);
 861                         }
 862                         FOREACH_MOD OnWhois(user,dest);
 863                         if (!strcasecmp(user->server,dest->server))
 864                         {
 865                                 // idle time and signon line can only be sent if youre on the same server (according to RFC)
 866                                 WriteServ(user->fd,"317 %s %s %d %d :seconds idle, signon time",user->nick, dest->nick, abs((dest->idle_lastmsg)-TIME), dest->signon);
 867                         }
 868
 869                         WriteServ(user->fd,"318 %s %s :End of /WHOIS list.",user->nick, dest->nick);
 870                 }
 871                 else
 872                 {
 873                         WriteServ(user->fd,"401 %s %s :No such nick/channel",user->nick, parameters[0]);
 874                 }
 875         }
 876         else
 877         {
 878                 /* no such nick/channel */
 879                 WriteServ(user->fd,"401 %s %s :No such nick/channel",user->nick, parameters[0]);
 880         }
 881 }
 882
 883 void handle_quit(char **parameters, int pcnt, userrec *user)
 884 {
 885         user_hash::iterator iter = clientlist.find(user->nick);
 886         char* reason;
 887
 888         if (user->registered == 7)
 889         {
 890                 /* theres more to do here, but for now just close the socket */
 891                 if (pcnt == 1)
 892                 {
 893                         if (parameters[0][0] == ':')
 894                         {
 895                                 *parameters[0]++;
 896                         }
 897                         reason = parameters[0];
 898
 899                         if (strlen(reason)>MAXQUIT)
 900                         {
 901                                 reason[MAXQUIT-1] = '\0';
 902                         }
 903
 904                         Write(user->fd,"ERROR :Closing link (%s@%s) [%s%s]",user->ident,user->host,PrefixQuit,parameters[0]);
 905                         WriteOpers("*** Client exiting: %s!%s@%s [%s%s]",user->nick,user->ident,user->host,PrefixQuit,parameters[0]);
 906                         WriteCommonExcept(user,"QUIT :%s%s",PrefixQuit,parameters[0]);
 907
 908                         char buffer[MAXBUF];
 909                         snprintf(buffer,MAXBUF,"Q %s :%s%s",user->nick,PrefixQuit,parameters[0]);
 910                         NetSendToAll(buffer);
 911                 }
 912                 else
 913                 {
 914                         Write(user->fd,"ERROR :Closing link (%s@%s) [QUIT]",user->ident,user->host);
 915                         WriteOpers("*** Client exiting: %s!%s@%s [Client exited]",user->nick,user->ident,user->host);
 916                         WriteCommonExcept(user,"QUIT :Client exited");
 917
 918                         char buffer[MAXBUF];
 919                         snprintf(buffer,MAXBUF,"Q %s :Client exited",user->nick);
 920                         NetSendToAll(buffer);
 921                 }
 922                 FOREACH_MOD OnUserQuit(user);
 923                 AddWhoWas(user);
 924         }
 925
 926         FOREACH_MOD OnUserDisconnect(user);
 927
 928         /* push the socket on a stack of sockets due to be closed at the next opportunity */
 929         if (user->fd > -1)
 930         {
 931                 shutdown(user->fd,2);
 932                 close(user->fd);
 933         }
 934
 935         if (iter != clientlist.end())
 936         {
 937                 clientlist.erase(iter);
 938         }
 939
 940         if (user->registered == 7) {
 941                 purge_empty_chans(user);
 942         }
 943         delete user;
 944 }
 945
 946 void handle_who(char **parameters, int pcnt, userrec *user)
 947 {
 948         chanrec* Ptr = NULL;
 949         char tmp[10];
 950
 951         /* theres more to do here, but for now just close the socket */
 952         if (pcnt == 1)
 953         {
 954                 if ((!strcmp(parameters[0],"0")) || (!strcmp(parameters[0],"*")))
 955                 {
 956                         if (user->chans[0].channel)
 957                         {
 958                                 int n_list = 0;
 959                                 for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
 960                                 {
 961                                         Ptr = i->second->chans[0].channel;
 962                                         // suggested by phidjit and FCS
 963                                         if ((!common_channels(user,i->second)) && (isnick(i->second->nick)))
 964                                         {
 965                                                 // Bug Fix #29
 966                                                 strcpy(tmp, "");
 967                                                 if (strcmp(i->second->awaymsg, "")) {
 968                                                         strncat(tmp, "G", 9);
 969                                                 } else {
 970                                                         strncat(tmp, "H", 9);
 971                                                 }
 972                                                 if (strchr(i->second->modes,'o')) { strncat(tmp, "*", 9); }
 973                                                 WriteServ(user->fd,"352 %s %s %s %s %s %s %s :0 %s",user->nick, Ptr ? Ptr->name : "*", i->second->ident, i->second->dhost, i->second->server, i->second->nick, tmp, i->second->fullname);
 974                                                 n_list++;
 975                                                 if (n_list > MaxWhoResults)
 976                                                         break;
 977                                         }
 978                                 }
 979                         }
 980                         if (Ptr)
 981                         {
 982                                 WriteServ(user->fd,"315 %s %s :End of /WHO list.",user->nick , parameters[0]);
 983                         }
 984                         else
 985                         {
 986                                 WriteServ(user->fd,"315 %s %s :End of /WHO list.",user->nick, parameters[0]);
 987                         }
 988                         return;
 989                 }
 990                 if (parameters[0][0] == '#')
 991                 {
 992                         Ptr = FindChan(parameters[0]);
 993                         if (Ptr)
 994                         {
 995                                 for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
 996                                 {
 997                                         if ((has_channel(i->second,Ptr)) && (isnick(i->second->nick)))
 998                                         {
 999                                                 // Fix Bug #29 - Part 2..
1000                                                 strcpy(tmp, "");
1001                                                 if (strcmp(i->second->awaymsg, "")) {
1002                                                         strncat(tmp, "G", 9);
1003                                                 } else {
1004                                                         strncat(tmp, "H", 9);
1005                                                 }
1006                                                 if (strchr(i->second->modes,'o')) { strncat(tmp, "*", 9); }
1007                                                 strcat(tmp, cmode(i->second, Ptr));
1008                                                 WriteServ(user->fd,"352 %s %s %s %s %s %s %s :0 %s",user->nick, Ptr->name, i->second->ident, i->second->dhost, i->second->server, i->second->nick, tmp, i->second->fullname);
1009                                         }
1010                                 }
1011                                 WriteServ(user->fd,"315 %s %s :End of /WHO list.",user->nick, parameters[0]);
1012                         }
1013                         else
1014                         {
1015                                 WriteServ(user->fd,"401 %s %s :No such nick/channel",user->nick, parameters[0]);
1016                         }
1017                 }
1018                 else
1019                 {
1020                         userrec* u = Find(parameters[0]);
1021                         if (u)
1022                         {
1023                                 // Bug Fix #29 -- Part 29..
1024                                 strcpy(tmp, "");
1025                                 if (strcmp(u->awaymsg, "")) {
1026                                         strncat(tmp, "G" ,9);
1027                                 } else {
1028                                         strncat(tmp, "H" ,9);
1029                                 }
1030                                 if (strchr(u->modes,'o')) { strncat(tmp, "*" ,9); }
1031                                 WriteServ(user->fd,"352 %s %s %s %s %s %s %s :0 %s",user->nick, u->nick, u->ident, u->dhost, u->server, u->nick, tmp, u->fullname);
1032                         }
1033                         WriteServ(user->fd,"315 %s %s :End of /WHO list.",user->nick, parameters[0]);
1034                 }
1035         }
1036         if (pcnt == 2)
1037         {
1038                 if ((!strcmp(parameters[0],"0")) || (!strcmp(parameters[0],"*")) && (!strcmp(parameters[1],"o")))
1039                 {
1040                         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
1041                         {
1042                                 if ((common_channels(user,i->second)) && (isnick(i->second->nick)))
1043                                 {
1044                                         if (strchr(i->second->modes,'o'))
1045                                         {
1046                                                 // If i were a rich man.. I wouldn't need to me making these bugfixes..
1047                                                 // But i'm a poor bastard with nothing better to do.
1048                                                 strcpy(tmp, "");
1049                                                 if (strcmp(i->second->awaymsg, "")) {
1050                                                         strncat(tmp, "G" ,9);
1051                                                 } else {
1052                                                         strncat(tmp, "H" ,9);
1053                                                 }
1054
1055                                                 WriteServ(user->fd,"352 %s %s %s %s %s %s %s* :0 %s",user->nick, user->nick, i->second->ident, i->second->dhost, i->second->server, i->second->nick, tmp, i->second->fullname);
1056                                         }
1057                                 }
1058                         }
1059                         WriteServ(user->fd,"315 %s %s :End of /WHO list.",user->nick, parameters[0]);
1060                         return;
1061                 }
1062         }
1063 }
1064
1065 void handle_wallops(char **parameters, int pcnt, userrec *user)
1066 {
1067         WriteWallOps(user,false,"%s",parameters[0]);
1068 }
1069
1070 void handle_list(char **parameters, int pcnt, userrec *user)
1071 {
1072         WriteServ(user->fd,"321 %s Channel :Users Name",user->nick);
1073         for (chan_hash::const_iterator i = chanlist.begin(); i != chanlist.end(); i++)
1074         {
1075                 if ((!i->second->c_private) && (!i->second->secret))
1076                 {
1077                         WriteServ(user->fd,"322 %s %s %d :[+%s] %s",user->nick,i->second->name,usercount_i(i->second),chanmodes(i->second),i->second->topic);
1078                 }
1079         }
1080         WriteServ(user->fd,"323 %s :End of channel list.",user->nick);
1081 }
1082
1083
1084 void handle_rehash(char **parameters, int pcnt, userrec *user)
1085 {
1086         WriteServ(user->fd,"382 %s %s :Rehashing",user->nick,CleanFilename(CONFIG_FILE));
1087         ReadConfig(false,user);
1088         FOREACH_MOD OnRehash();
1089         WriteOpers("%s is rehashing config file %s",user->nick,CleanFilename(CONFIG_FILE));
1090 }
1091
1092 void handle_lusers(char **parameters, int pcnt, userrec *user)
1093 {
1094         WriteServ(user->fd,"251 %s :There are %d users and %d invisible on %d servers",user->nick,usercnt()-usercount_invisible(),usercount_invisible(),servercount());
1095         WriteServ(user->fd,"252 %s %d :operator(s) online",user->nick,usercount_opers());
1096         WriteServ(user->fd,"253 %s %d :unknown connections",user->nick,usercount_unknown());
1097         WriteServ(user->fd,"254 %s %d :channels formed",user->nick,chancount());
1098         WriteServ(user->fd,"254 %s :I have %d clients and %d servers",user->nick,local_count(),count_servs());
1099 }
1100
1101 void handle_admin(char **parameters, int pcnt, userrec *user)
1102 {
1103         WriteServ(user->fd,"256 %s :Administrative info for %s",user->nick,ServerName);
1104         WriteServ(user->fd,"257 %s :Name     - %s",user->nick,AdminName);
1105         WriteServ(user->fd,"258 %s :Nickname - %s",user->nick,AdminNick);
1106         WriteServ(user->fd,"258 %s :E-Mail   - %s",user->nick,AdminEmail);
1107 }
1108
1109 void handle_ping(char **parameters, int pcnt, userrec *user)
1110 {
1111         WriteServ(user->fd,"PONG %s :%s",ServerName,parameters[0]);
1112 }
1113
1114 void handle_pong(char **parameters, int pcnt, userrec *user)
1115 {
1116         // set the user as alive so they survive to next ping
1117         user->lastping = 1;
1118 }
1119
1120 void handle_motd(char **parameters, int pcnt, userrec *user)
1121 {
1122         ShowMOTD(user);
1123 }
1124
1125 void handle_rules(char **parameters, int pcnt, userrec *user)
1126 {
1127         ShowRULES(user);
1128 }
1129
1130 void handle_user(char **parameters, int pcnt, userrec *user)
1131 {
1132         if (user->registered < 3)
1133         {
1134                 if (isident(parameters[0]) == 0) {
1135                         // This kinda Sucks, According to the RFC thou, its either this,
1136                         // or "You have already registered" :p -- Craig
1137                         WriteServ(user->fd,"461 %s USER :Not enough parameters",user->nick);
1138                 }
1139                 else {
1140                         strcpy(user->ident,"~"); /* we arent checking ident... but these days why bother anyway? */
1141                         strlcat(user->ident,parameters[0],IDENTMAX);
1142                         strlcpy(user->fullname,parameters[3],128);
1143                         user->registered = (user->registered | 1);
1144                 }
1145         }
1146         else
1147         {
1148                 WriteServ(user->fd,"462 %s :You may not reregister",user->nick);
1149                 return;
1150         }
1151         /* parameters 2 and 3 are local and remote hosts, ignored when sent by client connection */
1152         if (user->registered == 3)
1153         {
1154                 /* user is registered now, bit 0 = USER command, bit 1 = sent a NICK command */
1155                 FOREACH_MOD OnUserRegister(user);
1156                 ConnectUser(user);
1157         }
1158 }
1159
1160 void handle_userhost(char **parameters, int pcnt, userrec *user)
1161 {
1162         char Return[MAXBUF],junk[MAXBUF];
1163         snprintf(Return,MAXBUF,"302 %s :",user->nick);
1164         for (int i = 0; i < pcnt; i++)
1165         {
1166                 userrec *u = Find(parameters[i]);
1167                 if (u)
1168                 {
1169                         if (strchr(u->modes,'o'))
1170                         {
1171                                 snprintf(junk,MAXBUF,"%s*=+%s@%s ",u->nick,u->ident,u->host);
1172                                 strlcat(Return,junk,MAXBUF);
1173                         }
1174                         else
1175                         {
1176                                 snprintf(junk,MAXBUF,"%s=+%s@%s ",u->nick,u->ident,u->host);
1177                                 strlcat(Return,junk,MAXBUF);
1178                         }
1179                 }
1180         }
1181         WriteServ(user->fd,Return);
1182 }
1183
1184
1185 void handle_ison(char **parameters, int pcnt, userrec *user)
1186 {
1187         char Return[MAXBUF];
1188         snprintf(Return,MAXBUF,"303 %s :",user->nick);
1189         for (int i = 0; i < pcnt; i++)
1190         {
1191                 userrec *u = Find(parameters[i]);
1192                 if (u)
1193                 {
1194                         strlcat(Return,u->nick,MAXBUF);
1195                         strlcat(Return," ",MAXBUF);
1196                 }
1197         }
1198         WriteServ(user->fd,Return);
1199 }
1200
1201
1202 void handle_away(char **parameters, int pcnt, userrec *user)
1203 {
1204         if (pcnt)
1205         {
1206                 strlcpy(user->awaymsg,parameters[0],512);
1207                 WriteServ(user->fd,"306 %s :You have been marked as being away",user->nick);
1208         }
1209         else
1210         {
1211                 strlcpy(user->awaymsg,"",512);
1212                 WriteServ(user->fd,"305 %s :You are no longer marked as being away",user->nick);
1213         }
1214 }
1215
1216 void handle_whowas(char **parameters, int pcnt, userrec* user)
1217 {
1218         user_hash::iterator i = whowas.find(parameters[0]);
1219
1220         if (i == whowas.end())
1221         {
1222                 WriteServ(user->fd,"406 %s %s :There was no such nickname",user->nick,parameters[0]);
1223                 WriteServ(user->fd,"369 %s %s :End of WHOWAS",user->nick,parameters[0]);
1224         }
1225         else
1226         {
1227                 time_t rawtime = i->second->signon;
1228                 tm *timeinfo;
1229                 char b[MAXBUF];
1230
1231                 timeinfo = localtime(&rawtime);
1232                 strlcpy(b,asctime(timeinfo),MAXBUF);
1233                 b[strlen(b)-1] = '\0';
1234
1235                 WriteServ(user->fd,"314 %s %s %s %s * :%s",user->nick,i->second->nick,i->second->ident,i->second->dhost,i->second->fullname);
1236                 WriteServ(user->fd,"312 %s %s %s :%s",user->nick,i->second->nick,i->second->server,b);
1237                 WriteServ(user->fd,"369 %s %s :End of WHOWAS",user->nick,parameters[0]);
1238         }
1239
1240 }
1241
1242 void handle_trace(char **parameters, int pcnt, userrec *user)
1243 {
1244         for (user_hash::iterator i = clientlist.begin(); i != clientlist.end(); i++)
1245         {
1246                 if (i->second)
1247                 {
1248                         if (isnick(i->second->nick))
1249                         {
1250                                 if (strchr(i->second->modes,'o'))
1251                                 {
1252                                         WriteServ(user->fd,"205 %s :Oper 0 %s",user->nick,i->second->nick);
1253                                 }
1254                                 else
1255                                 {
1256                                         WriteServ(user->fd,"204 %s :User 0 %s",user->nick,i->second->nick);
1257                                 }
1258                         }
1259                         else
1260                         {
1261                                 WriteServ(user->fd,"203 %s :???? 0 [%s]",user->nick,i->second->host);
1262                         }
1263                 }
1264         }
1265 }
1266
1267 void handle_modules(char **parameters, int pcnt, userrec *user)
1268 {
1269         for (int i = 0; i < module_names.size(); i++)
1270         {
1271                 Version V = modules[i]->GetVersion();
1272                 char modulename[MAXBUF];
1273                 char flagstate[MAXBUF];
1274                 strcpy(flagstate,"");
1275                 if (V.Flags & VF_STATIC)
1276                         strlcat(flagstate,", static",MAXBUF);
1277                 if (V.Flags & VF_VENDOR)
1278                         strlcat(flagstate,", vendor",MAXBUF);
1279                 if (V.Flags & VF_COMMON)
1280                         strlcat(flagstate,", common",MAXBUF);
1281                 if (V.Flags & VF_SERVICEPROVIDER)
1282                         strlcat(flagstate,", service provider",MAXBUF);
1283                 if (!flagstate[0])
1284                         strcpy(flagstate,"  <no flags>");
1285                 strlcpy(modulename,module_names[i].c_str(),256);
1286                 if (strchr(user->modes,'o'))
1287                 {
1288                         WriteServ(user->fd,"900 %s :0x%08lx %d.%d.%d.%d %s (%s)",user->nick,modules[i],V.Major,V.Minor,V.Revision,V.Build,CleanFilename(modulename),flagstate+2);
1289                 }
1290                 else
1291                 {
1292                         WriteServ(user->fd,"900 %s :%s",user->nick,CleanFilename(modulename));
1293                 }
1294         }
1295 }
1296
1297 void handle_stats(char **parameters, int pcnt, userrec *user)
1298 {
1299         char Link_ServerName[MAXBUF],Link_IPAddr[MAXBUF],Link_Port[MAXBUF];
1300         if (pcnt != 1)
1301         {
1302                 return;
1303         }
1304         if (strlen(parameters[0])>1)
1305         {
1306                 /* make the stats query 1 character long */
1307                 parameters[0][1] = '\0';
1308         }
1309
1310
1311         FOREACH_MOD OnStats(*parameters[0]);
1312
1313         if (*parameters[0] == 'c')
1314         {
1315                 for (int i = 0; i < ConfValueEnum("link",&config_f); i++)
1316                 {
1317                         ConfValue("link","name",i,Link_ServerName,&config_f);
1318                         ConfValue("link","ipaddr",i,Link_IPAddr,&config_f);
1319                         ConfValue("link","port",i,Link_Port,&config_f);
1320                         WriteServ(user->fd,"213 %s C *@%s * %s %s 0 M",user->nick,Link_IPAddr,Link_ServerName,Link_Port);
1321                         WriteServ(user->fd,"244 %s H * * %s",user->nick,Link_ServerName);
1322                 }
1323         }
1324
1325         if (*parameters[0] == 'i')
1326         {
1327                 int idx = 0;
1328                 for (ClassVector::iterator i = Classes.begin(); i != Classes.end(); i++)
1329                 {
1330                         WriteServ(user->fd,"215 %s I * * * %d %d %s *",user->nick,MAXCLIENTS,idx,ServerName);
1331                         idx++;
1332                 }
1333         }
1334
1335         if (*parameters[0] == 'y')
1336         {
1337                 int idx = 0;
1338                 for (ClassVector::iterator i = Classes.begin(); i != Classes.end(); i++)
1339                 {
1340                         WriteServ(user->fd,"218 %s Y %d %d 0 %d %d",user->nick,idx,120,i->flood,i->registration_timeout);
1341                         idx++;
1342                 }
1343         }
1344
1345         if (*parameters[0] == 'U')
1346         {
1347                 for (int i = 0; i < ConfValueEnum("uline",&config_f); i++)
1348                 {
1349                         ConfValue("uline","server",i,Link_ServerName,&config_f);
1350                         WriteServ(user->fd,"248 %s U %s",user->nick,Link_ServerName);
1351                 }
1352         }
1353
1354         if (*parameters[0] == 'P')
1355         {
1356                 int idx = 0;
1357                 for (user_hash::iterator i = clientlist.begin(); i != clientlist.end(); i++)
1358                 {
1359                         if (strchr(i->second->modes,'o'))
1360                         {
1361                                 WriteServ(user->fd,"249 %s :%s (%s@%s) Idle: %d",user->nick,i->second->nick,i->second->ident,i->second->dhost,(TIME - i->second->idle_lastmsg));
1362                                 idx++;
1363                         }
1364                 }
1365                 WriteServ(user->fd,"249 %s :%d OPER(s)",user->nick,idx);
1366         //249 [Brain] :bwoadway-monitor (~wgmon@204.152.186.58) Idle: 18
1367         }
1368
1369         if (*parameters[0] == 'k')
1370         {
1371                 stats_k(user);
1372         }
1373
1374         if (*parameters[0] == 'g')
1375         {
1376                 stats_g(user);
1377         }
1378
1379         if (*parameters[0] == 'q')
1380         {
1381                 stats_q(user);
1382         }
1383
1384         if (*parameters[0] == 'Z')
1385         {
1386                 stats_z(user);
1387         }
1388
1389         if (*parameters[0] == 'e')
1390         {
1391                 stats_e(user);
1392         }
1393
1394         /* stats m (list number of times each command has been used, plus bytecount) */
1395         if (*parameters[0] == 'm')
1396         {
1397                 for (int i = 0; i < cmdlist.size(); i++)
1398                 {
1399                         if (cmdlist[i].handler_function)
1400                         {
1401                                 if (cmdlist[i].use_count)
1402                                 {
1403                                         /* RPL_STATSCOMMANDS */
1404                                         WriteServ(user->fd,"212 %s %s %d %d",user->nick,cmdlist[i].command,cmdlist[i].use_count,cmdlist[i].total_bytes);
1405                                 }
1406                         }
1407                 }
1408
1409         }
1410
1411         /* stats z (debug and memory info) */
1412         if (*parameters[0] == 'z')
1413         {
1414                 WriteServ(user->fd,"249 %s :Users(HASH_MAP) %d (%d bytes, %d buckets)",user->nick,clientlist.size(),clientlist.size()*sizeof(userrec),clientlist.bucket_count());
1415                 WriteServ(user->fd,"249 %s :Channels(HASH_MAP) %d (%d bytes, %d buckets)",user->nick,chanlist.size(),chanlist.size()*sizeof(chanrec),chanlist.bucket_count());
1416                 WriteServ(user->fd,"249 %s :Commands(VECTOR) %d (%d bytes)",user->nick,cmdlist.size(),cmdlist.size()*sizeof(command_t));
1417                 WriteServ(user->fd,"249 %s :MOTD(VECTOR) %d, RULES(VECTOR) %d",user->nick,MOTD.size(),RULES.size());
1418                 WriteServ(user->fd,"249 %s :address_cache(HASH_MAP) %d (%d buckets)",user->nick,IP.size(),IP.bucket_count());
1419                 WriteServ(user->fd,"249 %s :Modules(VECTOR) %d (%d)",user->nick,modules.size(),modules.size()*sizeof(Module));
1420                 WriteServ(user->fd,"249 %s :ClassFactories(VECTOR) %d (%d)",user->nick,factory.size(),factory.size()*sizeof(ircd_module));
1421                 WriteServ(user->fd,"249 %s :Ports(STATIC_ARRAY) %d",user->nick,boundPortCount);
1422         }
1423
1424         /* stats o */
1425         if (*parameters[0] == 'o')
1426         {
1427                 for (int i = 0; i < ConfValueEnum("oper",&config_f); i++)
1428                 {
1429                         char LoginName[MAXBUF];
1430                         char HostName[MAXBUF];
1431                         char OperType[MAXBUF];
1432                         ConfValue("oper","name",i,LoginName,&config_f);
1433                         ConfValue("oper","host",i,HostName,&config_f);
1434                         ConfValue("oper","type",i,OperType,&config_f);
1435                         WriteServ(user->fd,"243 %s O %s * %s %s 0",user->nick,HostName,LoginName,OperType);
1436                 }
1437         }
1438
1439         /* stats l (show user I/O stats) */
1440         if (*parameters[0] == 'l')
1441         {
1442                 WriteServ(user->fd,"211 %s :server:port nick bytes_in cmds_in bytes_out cmds_out",user->nick);
1443                 for (user_hash::iterator i = clientlist.begin(); i != clientlist.end(); i++)
1444                 {
1445                         if (isnick(i->second->nick))
1446                         {
1447                                 WriteServ(user->fd,"211 %s :%s:%d %s %d %d %d %d",user->nick,ServerName,i->second->port,i->second->nick,i->second->bytes_in,i->second->cmds_in,i->second->bytes_out,i->second->cmds_out);
1448                         }
1449                         else
1450                         {
1451                                 WriteServ(user->fd,"211 %s :%s:%d (unknown@%d) %d %d %d %d",user->nick,ServerName,i->second->port,i->second->fd,i->second->bytes_in,i->second->cmds_in,i->second->bytes_out,i->second->cmds_out);
1452                         }
1453
1454                 }
1455         }
1456
1457         /* stats u (show server uptime) */
1458         if (*parameters[0] == 'u')
1459         {
1460                 time_t current_time = 0;
1461                 current_time = TIME;
1462                 time_t server_uptime = current_time - startup_time;
1463                 struct tm* stime;
1464                 stime = gmtime(&server_uptime);
1465                 /* i dont know who the hell would have an ircd running for over a year nonstop, but
1466                  * Craig suggested this, and it seemed a good idea so in it went */
1467                 if (stime->tm_year > 70)
1468                 {
1469                         WriteServ(user->fd,"242 %s :Server up %d years, %d days, %.2d:%.2d:%.2d",user->nick,(stime->tm_year-70),stime->tm_yday,stime->tm_hour,stime->tm_min,stime->tm_sec);
1470                 }
1471                 else
1472                 {
1473                         WriteServ(user->fd,"242 %s :Server up %d days, %.2d:%.2d:%.2d",user->nick,stime->tm_yday,stime->tm_hour,stime->tm_min,stime->tm_sec);
1474                 }
1475         }
1476
1477         WriteServ(user->fd,"219 %s %s :End of /STATS report",user->nick,parameters[0]);
1478         WriteOpers("*** Notice: Stats '%s' requested by %s (%s@%s)",parameters[0],user->nick,user->ident,user->host);
1479
1480 }
1481
1482 void handle_connect(char **parameters, int pcnt, userrec *user)
1483 {
1484         char Link_ServerName[1024];
1485         char Link_IPAddr[1024];
1486         char Link_Port[1024];
1487         char Link_Pass[1024];
1488         int LinkPort;
1489         bool found = false;
1490
1491         for (int i = 0; i < ConfValueEnum("link",&config_f); i++)
1492         {
1493                 if (!found)
1494                 {
1495                         ConfValue("link","name",i,Link_ServerName,&config_f);
1496                         ConfValue("link","ipaddr",i,Link_IPAddr,&config_f);
1497                         ConfValue("link","port",i,Link_Port,&config_f);
1498                         ConfValue("link","sendpass",i,Link_Pass,&config_f);
1499                         log(DEBUG,"(%d) Comparing against name='%s', ipaddr='%s', port='%s', recvpass='%s'",i,Link_ServerName,Link_IPAddr,Link_Port,Link_Pass);
1500                         LinkPort = atoi(Link_Port);
1501                         if (match(Link_ServerName,parameters[0])) {
1502                                 found = true;
1503                                 break;
1504                         }
1505                 }
1506         }
1507
1508         if (!found) {
1509                 WriteServ(user->fd,"NOTICE %s :*** Failed to connect to %s: No servers matching this pattern are configured for linking.",user->nick,parameters[0]);
1510                 return;
1511         }
1512
1513         // TODO: Perform a check here to stop a server being linked twice!
1514
1515         WriteServ(user->fd,"NOTICE %s :*** Connecting to %s (%s) port %s...",user->nick,Link_ServerName,Link_IPAddr,Link_Port);
1516
1517         if (me[defaultRoute])
1518         {
1519                 me[defaultRoute]->BeginLink(Link_IPAddr,LinkPort,Link_Pass,Link_ServerName,me[defaultRoute]->port);
1520                 return;
1521         }
1522         else
1523         {
1524                 WriteServ(user->fd,"NOTICE %s :No default route is defined for server connections on this server. You must define a server connection to be default route so that sockets can be bound to it.",user->nick);
1525         }
1526 }
1527
1528 void handle_squit(char **parameters, int pcnt, userrec *user)
1529 {
1530         // send out an squit across the mesh and then clear the server list (for local squit)
1531         if (!pcnt)
1532         {
1533                 WriteOpers("SQUIT command issued by %s",user->nick);
1534                 char buffer[MAXBUF];
1535                 snprintf(buffer,MAXBUF,"& %s",ServerName);
1536                 NetSendToAll(buffer);
1537                 DoSplitEveryone();
1538         }
1539         else
1540         {
1541                 WriteServ(user->fd,"NOTICE :*** Remote SQUIT not supported yet.");
1542         }
1543 }
1544
1545 void handle_links(char **parameters, int pcnt, userrec *user)
1546 {
1547         WriteServ(user->fd,"364 %s %s %s :0 %s",user->nick,ServerName,ServerName,ServerDesc);
1548         for (int j = 0; j < 32; j++)
1549         {
1550                 if (me[j] != NULL)
1551                 {
1552                         for (int k = 0; k < me[j]->connectors.size(); k++)
1553                         {
1554                                 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());
1555                         }
1556                 }
1557         }
1558         WriteServ(user->fd,"365 %s * :End of /LINKS list.",user->nick);
1559 }
1560
1561 void handle_map(char **parameters, int pcnt, userrec *user)
1562 {
1563         char line[MAXBUF];
1564         snprintf(line,MAXBUF,"006 %s :%s",user->nick,ServerName);
1565         while (strlen(line) < 50)
1566                 strcat(line," ");
1567         WriteServ(user->fd,"%s%d (%.2f%%)",line,local_count(),(float)(((float)local_count()/(float)registered_usercount())*100));
1568         for (int j = 0; j < 32; j++)
1569         {
1570                 if (me[j] != NULL)
1571                 {
1572                         for (int k = 0; k < me[j]->connectors.size(); k++)
1573                         {
1574                                 snprintf(line,MAXBUF,"006 %s :%c-%s",user->nick,islast(me[j]->connectors[k].GetServerName().c_str()),me[j]->connectors[k].GetServerName().c_str());
1575                                 while (strlen(line) < 50)
1576                                         strcat(line," ");
1577                                 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));
1578                         }
1579                 }
1580         }
1581         WriteServ(user->fd,"007 %s :End of /MAP",user->nick);
1582 }
1583
1584 bool is_uline(const char* server)
1585 {
1586         char ServName[MAXBUF];
1587         for (int i = 0; i < ConfValueEnum("uline",&config_f); i++)
1588         {
1589                 ConfValue("uline","server",i,ServName,&config_f);
1590                 if (!strcasecmp(server,ServName))
1591                 {
1592                         return true;
1593                 }
1594         }
1595         return false;
1596 }
1597 int operstrcmp(char* data,char* input)
1598 {
1599         int MOD_RESULT = 0;
1600         FOREACH_RESULT(OnOperCompare(data,input))
1601         log(DEBUG,"operstrcmp: %d",MOD_RESULT);
1602         if (MOD_RESULT == 1)
1603                 return 0;
1604         if (MOD_RESULT == -1)
1605                 return 1;
1606         log(DEBUG,"strcmp fallback: '%s' '%s' %d",data,input,strcmp(data,input));
1607         return strcmp(data,input);
1608 }
1609
1610 void handle_oper(char **parameters, int pcnt, userrec *user)
1611 {
1612         char LoginName[MAXBUF];
1613         char Password[MAXBUF];
1614         char OperType[MAXBUF];
1615         char TypeName[MAXBUF];
1616         char HostName[MAXBUF];
1617         char TheHost[MAXBUF];
1618         int j;
1619         bool found = false;
1620         bool fail2 = false;
1621         char global[MAXBUF];
1622
1623         snprintf(TheHost,MAXBUF,"%s@%s",user->ident,user->host);
1624
1625         for (int i = 0; i < ConfValueEnum("oper",&config_f); i++)
1626         {
1627                 ConfValue("oper","name",i,LoginName,&config_f);
1628                 ConfValue("oper","password",i,Password,&config_f);
1629                 ConfValue("oper","type",i,OperType,&config_f);
1630                 ConfValue("oper","host",i,HostName,&config_f);
1631                 if ((!strcmp(LoginName,parameters[0])) && (!operstrcmp(Password,parameters[1])) && (match(TheHost,HostName)))
1632                 {
1633                         fail2 = true;
1634                         for (j =0; j < ConfValueEnum("type",&config_f); j++)
1635                         {
1636                                 ConfValue("type","name",j,TypeName,&config_f);
1637
1638                                 if (!strcmp(TypeName,OperType))
1639                                 {
1640                                         /* found this oper's opertype */
1641                                         snprintf(global,MAXBUF,"| %s %s",user->nick,TypeName);
1642                                         NetSendToAll(global);
1643                                         ConfValue("type","host",j,HostName,&config_f);
1644                                         ChangeDisplayedHost(user,HostName);
1645                                         strlcpy(user->oper,TypeName,NICKMAX);
1646                                         found = true;
1647                                         fail2 = false;
1648                                         break;
1649                                 }
1650                         }
1651                 }
1652                 if (found)
1653                         break;
1654         }
1655         if (found)
1656         {
1657                 /* correct oper credentials */
1658                 WriteOpers("*** %s (%s@%s) is now an IRC operator of type %s",user->nick,user->ident,user->host,OperType);
1659                 WriteServ(user->fd,"381 %s :You are now an IRC operator of type %s",user->nick,OperType);
1660                 if (!strchr(user->modes,'o'))
1661                 {
1662                         strcat(user->modes,"o");
1663                         WriteServ(user->fd,"MODE %s :+o",user->nick);
1664                         snprintf(global,MAXBUF,"M %s +o",user->nick);
1665                         NetSendToAll(global);
1666                         FOREACH_MOD OnOper(user);
1667                         log(DEFAULT,"OPER: %s!%s@%s opered as type: %s",user->nick,user->ident,user->host,OperType);
1668                         AddOper(user);
1669                 }
1670         }
1671         else
1672         {
1673                 if (!fail2)
1674                 {
1675                         WriteServ(user->fd,"491 %s :Invalid oper credentials",user->nick);
1676                         WriteOpers("*** WARNING! Failed oper attempt by %s!%s@%s!",user->nick,user->ident,user->host);
1677                         log(DEFAULT,"OPER: Failed oper attempt by %s!%s@%s: user, host or password did not match.",user->nick,user->ident,user->host);
1678                 }
1679                 else
1680                 {
1681                         WriteServ(user->fd,"491 %s :Your oper block does not have a valid opertype associated with it",user->nick);
1682                         WriteOpers("*** CONFIGURATION ERROR! Oper block mismatch for OperType %s",OperType);
1683                         log(DEFAULT,"OPER: Failed oper attempt by %s!%s@%s: credentials valid, but oper type nonexistent.",user->nick,user->ident,user->host);
1684                 }
1685         }
1686         return;
1687 }
1688
1689 void handle_nick(char **parameters, int pcnt, userrec *user)
1690 {
1691         if (pcnt < 1)
1692         {
1693                 log(DEBUG,"not enough params for handle_nick");
1694                 return;
1695         }
1696         if (!parameters[0])
1697         {
1698                 log(DEBUG,"invalid parameter passed to handle_nick");
1699                 return;
1700         }
1701         if (!parameters[0][0])
1702         {
1703                 log(DEBUG,"zero length new nick passed to handle_nick");
1704                 return;
1705         }
1706         if (!user)
1707         {
1708                 log(DEBUG,"invalid user passed to handle_nick");
1709                 return;
1710         }
1711         if (!user->nick)
1712         {
1713                 log(DEBUG,"invalid old nick passed to handle_nick");
1714                 return;
1715         }
1716         if (!strcasecmp(user->nick,parameters[0]))
1717         {
1718                 log(DEBUG,"old nick is new nick, skipping");
1719                 return;
1720         }
1721         else
1722         {
1723                 if (strlen(parameters[0]) > 1)
1724                 {
1725                         if (parameters[0][0] == ':')
1726                         {
1727                                 *parameters[0]++;
1728                         }
1729                 }
1730                 if (matches_qline(parameters[0]))
1731                 {
1732                         WriteOpers("*** Q-Lined nickname %s from %s!%s@%s: %s",parameters[0],user->nick,user->ident,user->host,matches_qline(parameters[0]));
1733                         WriteServ(user->fd,"432 %s %s :Invalid nickname: %s",user->nick,parameters[0],matches_qline(parameters[0]));
1734                         return;
1735                 }
1736                 if ((Find(parameters[0])) && (Find(parameters[0]) != user))
1737                 {
1738                         WriteServ(user->fd,"433 %s %s :Nickname is already in use.",user->nick,parameters[0]);
1739                         return;
1740                 }
1741         }
1742         if (isnick(parameters[0]) == 0)
1743         {
1744                 WriteServ(user->fd,"432 %s %s :Erroneous Nickname",user->nick,parameters[0]);
1745                 return;
1746         }
1747
1748         if (user->registered == 7)
1749         {
1750                 int MOD_RESULT = 0;
1751                 FOREACH_RESULT(OnUserPreNick(user,parameters[0]));
1752                 if (MOD_RESULT) {
1753                         // if a module returns true, the nick change is silently forbidden.
1754                         return;
1755                 }
1756
1757                 WriteCommon(user,"NICK %s",parameters[0]);
1758
1759                 // N token must go to ALL servers!!!
1760                 char buffer[MAXBUF];
1761                 snprintf(buffer,MAXBUF,"n %s %s",user->nick,parameters[0]);
1762                 NetSendToAll(buffer);
1763         }
1764
1765         char oldnick[NICKMAX];
1766         strlcpy(oldnick,user->nick,NICKMAX);
1767
1768         /* change the nick of the user in the users_hash */
1769         user = ReHashNick(user->nick, parameters[0]);
1770         /* actually change the nick within the record */
1771         if (!user) return;
1772         if (!user->nick) return;
1773
1774         strlcpy(user->nick, parameters[0],NICKMAX);
1775
1776         log(DEBUG,"new nick set: %s",user->nick);
1777
1778         if (user->registered < 3)
1779         {
1780                 user->registered = (user->registered | 2);
1781                 // dont attempt to look up the dns until they pick a nick... because otherwise their pointer WILL change
1782                 // and unless we're lucky we'll get a duff one later on.
1783                 user->dns_done = (!lookup_dns(user->nick));
1784                 if (user->dns_done)
1785                         log(DEBUG,"Aborting dns lookup of %s because dns server experienced a failure.",user->nick);
1786         }
1787         if (user->registered == 3)
1788         {
1789                 /* user is registered now, bit 0 = USER command, bit 1 = sent a NICK command */
1790                 FOREACH_MOD OnUserRegister(user);
1791                 ConnectUser(user);
1792         }
1793         if (user->registered == 7)
1794         {
1795                 FOREACH_MOD OnUserPostNick(user,oldnick);
1796         }
1797 }
1798
1799
1800
1801 void handle_V(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
1802 {
1803         char* src = strtok(params," ");
1804         char* dest = strtok(NULL," :");
1805         char* text = strtok(NULL,"\r\n");
1806         text++;
1807
1808         userrec* user = Find(src);
1809         if (user)
1810         {
1811                 userrec* dst = Find(dest);
1812
1813                 if (dst)
1814                 {
1815                         WriteTo(user, dst, "NOTICE %s :%s", dst->nick, text);
1816                 }
1817                 else
1818                 {
1819                         chanrec* d = FindChan(dest);
1820                         if (d)
1821                         {
1822                                 ChanExceptSender(d, user, "NOTICE %s :%s", d->name, text);
1823                         }
1824                 }
1825         }
1826
1827 }
1828
1829
1830 void handle_P(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
1831 {
1832         char* src = strtok(params," ");
1833         char* dest = strtok(NULL," :");
1834         char* text = strtok(NULL,"\r\n");
1835         text++;
1836
1837         userrec* user = Find(src);
1838         if (user)
1839         {
1840                 userrec* dst = Find(dest);
1841
1842                 if (dst)
1843                 {
1844                         WriteTo(user, dst, "PRIVMSG %s :%s", dst->nick, text);
1845                 }
1846                 else
1847                 {
1848                         chanrec* d = FindChan(dest);
1849                         if (d)
1850                         {
1851                                 ChanExceptSender(d, user, "PRIVMSG %s :%s", d->name, text);
1852                         }
1853                 }
1854         }
1855
1856 }
1857
1858 void handle_i(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
1859 {
1860         char* nick = strtok(params," ");
1861         char* from = strtok(NULL," ");
1862         char* channel = strtok(NULL," ");
1863         userrec* u = Find(nick);
1864         userrec* user = Find(from);
1865         chanrec* c = FindChan(channel);
1866         if ((c) && (u) && (user))
1867         {
1868                 u->InviteTo(c->name);
1869                 WriteFrom(u->fd,user,"INVITE %s :%s",u->nick,c->name);
1870         }
1871 }
1872
1873 void handle_t(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
1874 {
1875         char* setby = strtok(params," ");
1876         char* channel = strtok(NULL," :");
1877         char* topic = strtok(NULL,"\r\n");
1878         topic++;
1879         userrec* u = Find(setby);
1880         chanrec* c = FindChan(channel);
1881         if ((c) && (u))
1882         {
1883                 WriteChannelLocal(c,u,"TOPIC %s :%s",c->name,topic);
1884                 strlcpy(c->topic,topic,MAXTOPIC);
1885                 strlcpy(c->setby,u->nick,NICKMAX);
1886                 c->topicset = TIME;
1887         }
1888 }
1889
1890
1891 void handle_T(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
1892 {
1893         char* tm = strtok(params," ");
1894         char* setby = strtok(NULL," ");
1895         char* channel = strtok(NULL," :");
1896         char* topic = strtok(NULL,"\r\n");
1897         topic++;
1898         time_t TS = atoi(tm);
1899         chanrec* c = FindChan(channel);
1900         if (c)
1901         {
1902                 // in the case of topics and TS, the *NEWER*
1903                 if (TS <= c->topicset)
1904                 {
1905                         WriteChannelLocal(c,NULL,"TOPIC %s :%s",c->name,topic);
1906                         strlcpy(c->topic,topic,MAXTOPIC);
1907                         strlcpy(c->setby,setby,NICKMAX);
1908                 }
1909         }
1910 }
1911
1912 void handle_M(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
1913 {
1914         char* pars[128];
1915         char original[MAXBUF],target[MAXBUF];
1916         strlcpy(original,params,MAXBUF);
1917         int index = 0;
1918         char* parameter = strtok(params," ");
1919         strlcpy(target,parameter,MAXBUF);
1920         while (parameter)
1921         {
1922                 if (parameter[0] == ':')
1923                         parameter++;
1924                 pars[index++] = parameter;
1925                 parameter = strtok(NULL," ");
1926         }
1927         log(DEBUG,"*** MODE: %s %s",pars[0],pars[1]);
1928         merge_mode(pars,index);
1929         if (FindChan(target))
1930         {
1931                 WriteChannelLocal(FindChan(target), NULL, "MODE %s",original);
1932         }
1933         if (Find(target))
1934         {
1935                 Write(Find(target)->fd,":%s MODE %s",ServerName,original);
1936         }
1937 }
1938
1939 // m is modes set by users only (not servers) valid targets are channels or users.
1940
1941 void handle_m(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
1942 {
1943         // m blah #chatspike +b *!test@*4
1944         char* pars[128];
1945         char original[MAXBUF];
1946         strlcpy(original,params,MAXBUF);
1947
1948         if (!strchr(params,' '))
1949         {
1950                 WriteOpers("WARNING! 'm' token in data stream without any parameters! Something fishy is going on!");
1951                 return;
1952         }
1953
1954         int index = 0;
1955
1956         char* src = strtok(params," ");
1957         userrec* user = Find(src);
1958
1959         if (user)
1960         {
1961                 log(DEBUG,"Found user: %s",user->nick);
1962                 char* parameter = strtok(NULL," ");
1963                 while (parameter)
1964                 {
1965                         pars[index++] = parameter;
1966                         parameter = strtok(NULL," ");
1967                 }
1968
1969                 log(DEBUG,"Calling merge_mode2");
1970                 merge_mode2(pars,index,user);
1971         }
1972 }
1973
1974
1975 void handle_L(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
1976 {
1977         char* nick = NULL;
1978         char* channel = NULL;
1979         char* reason = NULL;
1980         log(DEBUG,"L TOKEN PARS: '%s'",params);
1981         if (strstr(params,":#"))
1982         {
1983                 nick = strtok(params," ");
1984                 channel = strtok(NULL,"\r\n");
1985                 channel++;
1986                 reason = "";
1987         }
1988         else
1989         {
1990                 nick = strtok(params," ");
1991                 channel = strtok(NULL," :");
1992                 reason = strtok(NULL,"\r\n");
1993                 reason++;
1994         }
1995         userrec* user = Find(nick);
1996         if ((user) && (channel) && (reason))
1997         {
1998                 if ((!reason) && (*reason != '\0'))
1999                 {
2000                         del_channel(user,channel,reason,true);
2001                 }
2002                 else
2003                 {
2004                         del_channel(user,channel,NULL,true);
2005                 }
2006         }
2007 }
2008
2009 void handle_K(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2010 {
2011         char* src = strtok(params," ");
2012         char* nick = strtok(NULL," :");
2013         char* reason = strtok(NULL,"\r\n");
2014         char kreason[MAXBUF];
2015         reason++;
2016
2017         userrec* u = Find(nick);
2018         userrec* user = Find(src);
2019
2020         if ((user) && (u))
2021         {
2022                 WriteTo(user, u, "KILL %s :%s!%s!%s!%s (%s)", u->nick, source->name, ServerName, user->dhost,user->nick,reason);
2023                 WriteOpers("*** Remote kill from %s by %s: %s!%s@%s (%s)",source->name,user->nick,u->nick,u->ident,u->host,reason);
2024                 snprintf(kreason,MAXBUF,"[%s] Killed (%s (%s))",source->name,user->nick,reason);
2025                 kill_link(u,kreason);
2026         }
2027 }
2028
2029 void handle_Q(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2030 {
2031         char* nick = strtok(params," :");
2032         char* reason = strtok(NULL,"\r\n");
2033         reason++;
2034
2035         userrec* user = Find(nick);
2036
2037         if (user)
2038         {
2039                 if (strlen(reason)>MAXQUIT)
2040                 {
2041                         reason[MAXQUIT-1] = '\0';
2042                 }
2043
2044
2045                 WriteCommonExcept(user,"QUIT :%s",reason);
2046
2047                 user_hash::iterator iter = clientlist.find(user->nick);
2048
2049                 if (iter != clientlist.end())
2050                 {
2051                         log(DEBUG,"deleting user hash value %d",iter->second);
2052                         clientlist.erase(iter);
2053                 }
2054
2055                 if (user->registered == 7)
2056                 {
2057                         purge_empty_chans(user);
2058                 }
2059                 delete user;
2060         }
2061 }
2062
2063 void handle_n(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2064 {
2065         char* oldnick = strtok(params," ");
2066         char* newnick = strtok(NULL," ");
2067
2068         userrec* user = Find(oldnick);
2069
2070         if (user)
2071         {
2072                 if (is_uline(tcp_host))
2073                 {
2074                         int MOD_RESULT = 0;
2075                         FOREACH_RESULT(OnUserPreNick(user,newnick));
2076                         if (MOD_RESULT) {
2077                                 // if a module returns true, the nick change couldnt be allowed
2078                                 kill_link(user,"Nickname collision");
2079                                 return;
2080                         }
2081                         if (matches_qline(newnick))
2082                         {
2083                                 kill_link(user,"Nickname collision");
2084                                 return;
2085                         }
2086
2087                         // broadcast this because its a services thingy
2088                         char buffer[MAXBUF];
2089                         snprintf(buffer,MAXBUF,"n %s %s",user->nick,newnick);
2090                         NetSendToAllExcept(tcp_host,buffer);
2091                 }
2092                 WriteCommon(user,"NICK %s",newnick);
2093                 user = ReHashNick(user->nick, newnick);
2094                 if (!user) return;
2095                 if (!user->nick) return;
2096                 strlcpy(user->nick, newnick,NICKMAX);
2097                 log(DEBUG,"new nick set: %s",user->nick);
2098         }
2099 }
2100
2101 // k <SOURCE> <DEST> <CHANNEL> :<REASON>
2102 void handle_k(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2103 {
2104         char* src = strtok(params," ");
2105         char* dest = strtok(NULL," ");
2106         char* channel = strtok(NULL," :");
2107         char* reason = strtok(NULL,"\r\n");
2108         reason++;
2109         userrec* s = Find(src);
2110         userrec* d = Find(dest);
2111         chanrec* c = FindChan(channel);
2112         if ((s) && (d) && (c))
2113         {
2114                 kick_channel(s,d,c,reason);
2115                 return;
2116         }
2117         d = Find(channel);
2118         c = FindChan(dest);
2119         if ((s) && (d) && (c))
2120         {
2121                 kick_channel(s,d,c,reason);
2122                 return;
2123         }
2124 }
2125
2126 void handle_AT(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2127 {
2128         char* who = strtok(params," :");
2129         char* text = strtok(NULL,"\r\n");
2130         text++;
2131         userrec* s = Find(who);
2132         if (s)
2133         {
2134                 WriteWallOps(s,true,text);
2135         }
2136 }
2137
2138 void handle_H(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2139 {
2140         log(DEBUG,"Adding ULined server %s to my map",params);
2141         ircd_connector s;
2142         s.SetState(STATE_DISCONNECTED);
2143         s.SetServerName(params);
2144
2145         for (int j = 0; j < 32; j++)
2146         {
2147                 if (me[j] != NULL)
2148                 {
2149                         for (int k = 0; k < me[j]->connectors.size(); k++)
2150                         {
2151                                 if (!strcasecmp(me[j]->connectors[k].GetServerName().c_str(),params))
2152                                 {
2153                                         // dont allow a server to be added twice
2154                                         log(DEBUG,"ULined server %s already in the map!",params);
2155                                         return;
2156                                 }
2157                         }
2158                 }
2159         }
2160
2161         source->connectors.push_back(s);
2162         WriteOpers("Non-Mesh server %s has joined the network",params);
2163 }
2164
2165 void handle_N(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2166 {
2167         char* tm = strtok(params," ");
2168         char* nick = strtok(NULL," ");
2169         char* host = strtok(NULL," ");
2170         char* dhost = strtok(NULL," ");
2171         char* ident = strtok(NULL," ");
2172         char* modes = strtok(NULL," ");
2173         char* ipaddr = strtok(NULL," ");
2174         char* server = strtok(NULL," :");
2175         char* gecos = strtok(NULL,"\r\n");
2176         gecos++;
2177         modes++;
2178         time_t TS = atoi(tm);
2179         user_hash::iterator iter = clientlist.find(nick);
2180         if (iter != clientlist.end())
2181         {
2182                 // nick collision
2183                 WriteOpers("Nickname collision: %s@%s != %s@%s",nick,server,iter->second->nick,iter->second->server);
2184                 char str[MAXBUF];
2185                 snprintf(str,MAXBUF,"Killed (Nick Collision (%s@%s < %s@%s))",nick,server,iter->second->nick,iter->second->server);
2186                 WriteServ(iter->second->fd, "KILL %s :%s",iter->second->nick,str);
2187                 kill_link(iter->second,str);
2188         }
2189         clientlist[nick] = new userrec();
2190         // remote users have an fd of -1. This is so that our Write abstraction
2191         // routines know to route any messages to this record away to whatever server
2192         // theyre on.
2193         clientlist[nick]->fd = -1;
2194         strlcpy(clientlist[nick]->nick, nick,NICKMAX);
2195         strlcpy(clientlist[nick]->host, host,160);
2196         strlcpy(clientlist[nick]->dhost, dhost,160);
2197         strlcpy(clientlist[nick]->server, server,256);
2198         strlcpy(clientlist[nick]->ident, ident,10); // +1 char to compensate for tilde
2199         strlcpy(clientlist[nick]->fullname, gecos,128);
2200         strlcpy(clientlist[nick]->ip,ipaddr,32);
2201         clientlist[nick]->signon = TS;
2202         clientlist[nick]->nping = 0; // this is ignored for a remote user anyway.
2203         clientlist[nick]->lastping = 1;
2204         clientlist[nick]->port = 0; // so is this...
2205         clientlist[nick]->registered = 7; // this however we need to set for them to receive messages and appear online
2206         clientlist[nick]->idle_lastmsg = TIME; // this is unrealiable and wont actually be used locally
2207         for (int i = 0; i < MAXCHANS; i++)
2208         {
2209                 clientlist[nick]->chans[i].channel = NULL;
2210                 clientlist[nick]->chans[i].uc_modes = 0;
2211         }
2212         FOREACH_MOD OnGlobalConnect(clientlist[nick]);
2213         if (strchr(clientlist[nick]->modes,'o'))
2214         {
2215                 FOREACH_MOD OnGlobalOper(clientlist[nick]);
2216         }
2217 }
2218
2219 void handle_F(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2220 {
2221         long tdiff = TIME - atoi(params);
2222         if (tdiff)
2223                 WriteOpers("TS split for %s -> %s: %d",source->name,reply->name,tdiff);
2224 }
2225
2226 void handle_a(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2227 {
2228         char* nick = strtok(params," :");
2229         char* gecos = strtok(NULL,"\r\n");
2230
2231         userrec* user = Find(nick);
2232
2233         if (user)
2234                 strlcpy(user->fullname,gecos,MAXBUF);
2235 }
2236
2237 void handle_b(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2238 {
2239         char* nick = strtok(params," ");
2240         char* host = strtok(NULL," ");
2241
2242         userrec* user = Find(nick);
2243
2244         if (user)
2245                 strlcpy(user->dhost,host,160);
2246 }
2247
2248 void handle_plus(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2249 {
2250         // %s %s %d %d
2251         // + test3.chatspike.net 7010 -2016508415
2252         char* servername = strtok(params," ");
2253         char* ipaddr = strtok(NULL," ");
2254         char* ipport = strtok(NULL," ");
2255         char* cookie = strtok(NULL," ");
2256         log(DEBUG,"*** Connecting back to %s:%d",ipaddr,atoi(ipport));
2257
2258
2259         bool conn_already = false;
2260         for (int i = 0; i < 32; i++)
2261         {
2262                 if (me[i] != NULL)
2263                 {
2264                         for (int j = 0; j < me[i]->connectors.size(); j++)
2265                         {
2266                                 if (!strcasecmp(me[i]->connectors[j].GetServerName().c_str(),servername))
2267                                 {
2268                                         if (me[i]->connectors[j].GetServerPort() == atoi(ipport))
2269                                         {
2270                                                 log(DEBUG,"Already got a connection to %s:%d, ignoring +",ipaddr,atoi(ipport));
2271                                                 conn_already = true;
2272                                         }
2273                                 }
2274                         }
2275                 }
2276         }
2277         if (!conn_already)
2278                 me[defaultRoute]->MeshCookie(ipaddr,atoi(ipport),atoi(cookie),servername);
2279 }
2280
2281 void handle_R(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2282 {
2283         char* server = strtok(params," ");
2284         char* data = strtok(NULL,"\r\n");
2285         if ((!data) || (!server))
2286         {
2287                 log(DEBUG,"Someones playing silly buggers, attempting to send to a null server or send a null message (BUG?)");
2288                 return;
2289         }
2290
2291         log(DEBUG,"Forwarded packet '%s' to '%s'",data,server);
2292         NetSendToOne(server,data);
2293 }
2294
2295 void handle_J(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2296 {
2297         // IMPORTANT NOTE
2298         // The J token currently has no timestamp - this needs looking at
2299         // because it will allow splitriding.
2300         char* nick = strtok(params," ");
2301         char* channel = strtok(NULL," ");
2302         userrec* user = Find(nick);
2303         while (channel)
2304         {
2305                 if ((user != NULL) && (strcmp(channel,"")))
2306                 {
2307                         char privilage = '\0';
2308                         if (channel[0] != '#')
2309                         {
2310                                 privilage = channel[0];
2311                                 channel++;
2312                         }
2313                         add_channel(user,channel,"",true);
2314
2315                         // now work out the privilages they should have on each channel
2316                         // and send the appropriate servermodes.
2317                         for (int i = 0; i != MAXCHANS; i++)
2318                         {
2319                                 if (user->chans[i].channel)
2320                                 {
2321                                         if (!strcasecmp(user->chans[i].channel->name,channel))
2322                                         {
2323                                                 if (privilage == '@')
2324                                                 {
2325                                                         user->chans[i].uc_modes = user->chans[i].uc_modes | UCMODE_OP;
2326                                                         WriteChannelLocal(user->chans[i].channel, NULL, "MODE %s +o %s",channel,user->nick);
2327                                                 }
2328                                                 if (privilage == '%')
2329                                                 {
2330                                                         user->chans[i].uc_modes = user->chans[i].uc_modes | UCMODE_HOP;
2331                                                         WriteChannelLocal(user->chans[i].channel, NULL, "MODE %s +h %s",channel,user->nick);
2332                                                 }
2333                                                 if (privilage == '+')
2334                                                 {
2335                                                         user->chans[i].uc_modes = user->chans[i].uc_modes | UCMODE_VOICE;
2336                                                         WriteChannelLocal(user->chans[i].channel, NULL, "MODE %s +v %s",channel,user->nick);
2337                                                 }
2338                                         }
2339                                 }
2340                         }
2341
2342                 }
2343                 channel = strtok(NULL," ");
2344         }
2345 }
2346
2347 void handle_dollar(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2348 {
2349         log(DEBUG,"Storing routing table...");
2350         char* sourceserver = strtok(params," ");
2351         char* server = strtok(NULL," ");
2352         for (int i = 0; i < 32; i++)
2353         {
2354                 if (me[i] != NULL)
2355                 {
2356                         for (int j = 0; j < me[i]->connectors.size(); j++)
2357                         {
2358                                 if (!strcasecmp(me[i]->connectors[j].GetServerName().c_str(),sourceserver))
2359                                 {
2360                                         me[i]->connectors[j].routes.clear();
2361                                         log(DEBUG,"Found entry for source server.");
2362                                         while (server)
2363                                         {
2364                                                 // store each route
2365                                                 me[i]->connectors[j].routes.push_back(server);
2366                                                 log(DEBUG,"*** Stored route: %s -> %s -> %s",ServerName,sourceserver,server);
2367                                                 server = strtok(NULL," ");
2368                                         }
2369                                         return;
2370                                 }
2371                         }
2372                 }
2373         }
2374         log(DEBUG,"Warning! routing table received from nonexistent server!");
2375 }
2376
2377 void handle_amp(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2378 {
2379         log(DEBUG,"Netsplit! %s split from mesh, removing!",params);
2380         WriteOpers("*** NOTICE - Controlled netsplit: %s split from %s",params,ServerName);
2381         bool go_again = true;
2382         while (go_again)
2383         {
2384                 go_again = false;
2385                 for (int i = 0; i < 32; i++)
2386                 {
2387                         if (me[i] != NULL)
2388                         {
2389                                 for (vector<ircd_connector>::iterator j = me[i]->connectors.begin(); j != me[i]->connectors.end(); j++)
2390                                 {
2391                                         if (!strcasecmp(j->GetServerName().c_str(),params))
2392                                         {
2393                                                 j->routes.clear();
2394                                                 j->CloseConnection();
2395                                                 me[i]->connectors.erase(j);
2396                                                 go_again = true;
2397                                                 break;
2398                                         }
2399                                 }
2400                         }
2401                 }
2402         }
2403         log(DEBUG,"Removed server. Will remove clients...");
2404         // iterate through the userlist and remove all users on this server.
2405         // because we're dealing with a mesh, we dont have to deal with anything
2406         // "down-route" from this server (nice huh)
2407         go_again = true;
2408         char reason[MAXBUF];
2409         snprintf(reason,MAXBUF,"%s %s",ServerName,params);
2410         while (go_again)
2411         {
2412                 go_again = false;
2413                 for (user_hash::const_iterator u = clientlist.begin(); u != clientlist.end(); u++)
2414                 {
2415                         if (!strcasecmp(u->second->server,params))
2416                         {
2417                                 kill_link(u->second,reason);
2418                                 go_again = true;
2419                                 break;
2420                         }
2421                 }
2422         }
2423 }
2424
2425 unsigned long authcookie;
2426
2427 void handle_hash(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2428 {
2429         // # <mask> <who-set-it> <time-set> <duration> :<reason>
2430         log(DEBUG,"Adding G-line");
2431         char* mask = strtok(params," ");
2432         char* who = strtok(NULL," ");
2433         char* create_time = strtok(NULL," ");
2434         char* duration = strtok(NULL," :");
2435         char* reason = strtok(NULL,"\r\n");
2436         reason++;
2437         add_gline(atoi(duration),(const char*)who,(const char*)reason,(const char*)mask);
2438         // we must update the creation time on this gline
2439         // now that we've added it, or it wont expire at the right time.
2440         gline_set_creation_time(mask,atoi(create_time));
2441         if (!atoi(duration))
2442         {
2443                 WriteOpers("*** %s Added permenant G-Line on %s.",who,mask);
2444         }
2445         else
2446         {
2447                 WriteOpers("*** %s Added timed G-Line on %s to expire in %d seconds.",who,mask,atoi(duration));
2448         }
2449         apply_lines();
2450 }
2451
2452 void handle_dot(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2453 {
2454         log(DEBUG,"Removing G-line");
2455         char* mask = strtok(params," ");
2456         char* who = strtok(NULL," ");
2457         if (mask)
2458         {
2459                 if (del_gline((const char*)mask))
2460                 {
2461                         if (who)
2462                         {
2463                                 WriteOpers("*** %s Removed G-line on %s.",who,mask);
2464                         }
2465                 }
2466         }
2467 }
2468
2469 void handle_add_sqline(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2470 {
2471         // { <mask> <who-set-it> <time-set> <duration> :<reason>
2472         log(DEBUG,"Adding Q-line");
2473         char* mask = strtok(params," ");
2474         char* who = strtok(NULL," ");
2475         char* create_time = strtok(NULL," ");
2476         char* duration = strtok(NULL," :");
2477         char* reason = strtok(NULL,"\r\n");
2478         reason++;
2479         add_qline(atoi(duration),(const char*)who,(const char*)reason,(const char*)mask);
2480         // we must update the creation time on this gline
2481         // now that we've added it, or it wont expire at the right time.
2482         qline_set_creation_time(mask,atoi(create_time));
2483         qline_make_global(mask);
2484         if (!atoi(duration))
2485         {
2486                 WriteOpers("*** %s Added permenant Q-Line on %s.",who,mask);
2487         }
2488         else
2489         {
2490                 WriteOpers("*** %s Added timed Q-Line on %s to expire in %d seconds.",who,mask,atoi(duration));
2491         }
2492         apply_lines();
2493 }
2494
2495 void handle_del_sqline(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2496 {
2497         log(DEBUG,"Removing Q-line");
2498         char* mask = strtok(params," ");
2499         char* who = strtok(NULL," ");
2500         if (mask)
2501         {
2502                 if (del_qline((const char*)mask))
2503                 {
2504                         if (who)
2505                         {
2506                                 WriteOpers("*** %s Removed Q-line on %s.",who,mask);
2507                         }
2508                 }
2509         }
2510 }
2511
2512 void handle_add_szline(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2513 {
2514         // } <mask> <who-set-it> <time-set> <duration> :<reason>
2515         log(DEBUG,"Adding Z-line");
2516         char* mask = strtok(params," ");
2517         char* who = strtok(NULL," ");
2518         char* create_time = strtok(NULL," ");
2519         char* duration = strtok(NULL," :");
2520         char* reason = strtok(NULL,"\r\n");
2521         reason++;
2522         add_zline(atoi(duration),(const char*)who,(const char*)reason,(const char*)mask);
2523         // we must update the creation time on this gline
2524         // now that we've added it, or it wont expire at the right time.
2525         zline_set_creation_time(mask,atoi(create_time));
2526         zline_make_global(mask);
2527         if (!atoi(duration))
2528         {
2529                 WriteOpers("*** %s Added permenant Z-Line on %s.",who,mask);
2530         }
2531         else
2532         {
2533                 WriteOpers("*** %s Added timed Z-Line on %s to expire in %d seconds.",who,mask,atoi(duration));
2534         }
2535         apply_lines();
2536 }
2537
2538 void handle_del_szline(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2539 {
2540         log(DEBUG,"Removing Z-line");
2541         char* mask = strtok(params," ");
2542         char* who = strtok(NULL," ");
2543         if (mask)
2544         {
2545                 if (del_zline((const char*)mask))
2546                 {
2547                         if (who)
2548                         {
2549                                 WriteOpers("*** %s Removed Q-line on %s.",who,mask);
2550                         }
2551                 }
2552         }
2553 }
2554
2555 void handle_pipe(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host)
2556 {
2557         char* nick = strtok(params," ");
2558         char* type = strtok(params," ");
2559         userrec* u = Find(nick);
2560         if (u)
2561         {
2562                 strlcpy(u->oper,type,NICKMAX);
2563         }
2564 }
2565
2566
2567 void process_restricted_commands(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host,char* ipaddr,int port)
2568 {
2569         char buffer[MAXBUF];
2570         int MOD_RESULT = 0;
2571
2572         switch(token)
2573         {
2574                 // Y <TS>
2575                 // start netburst
2576                 case 'Y':
2577                         nb_start = TIME;
2578                         WriteOpers("Server %s is starting netburst.",tcp_host);
2579                         // now broadcast this new servers address out to all servers that are linked to us,
2580                         // except the newcomer. They'll all attempt to connect back to it.
2581                         authcookie = rand()*rand();
2582                         snprintf(buffer,MAXBUF,"~ %lu",(unsigned long)authcookie);
2583                         NetSendToAll(buffer);
2584                 break;
2585                 // ~
2586                 // Store authcookie
2587                 // once stored, this authcookie permits other servers to log in
2588                 // without user or password, using it.
2589                 case '~':
2590                         auth_cookies.push_back(atoi(params));
2591                         log(DEBUG,"*** Stored auth cookie, will permit servers with auth-cookie %d",atoi(params));
2592                 break;
2593                 // connect back to a server using an authcookie
2594                 case '+':
2595                         handle_plus(token,params,source,reply,tcp_host);
2596                 break;
2597                 // routing table
2598                 case '$':
2599                         handle_dollar(token,params,source,reply,tcp_host);
2600                 break;
2601                 // node unreachable - we cant route to a server, sooooo we slit it off.
2602                 // servers can generate these for themselves for an squit.
2603                 case '&':
2604                         handle_amp(token,params,source,reply,tcp_host);
2605                 break;
2606                 // R <server> <data>
2607                 // redirect token, send all of <data> along to the given
2608                 // server as this server has been found to still have a route to it
2609                 case 'R':
2610                         handle_R(token,params,source,reply,tcp_host);
2611                 break;
2612                 // ?
2613                 // ping
2614                 case '?':
2615                         reply->SendPacket("!",tcp_host);
2616                 break;
2617                 // ?
2618                 // pong
2619                 case '!':
2620                 break;
2621                 // *
2622                 // no operation
2623                 case '*':
2624                 break;
2625                 // N <TS> <NICK> <HOST> <DHOST> <IDENT> <MODES> <SERVER> :<GECOS>
2626                 // introduce remote client
2627                 case 'N':
2628                         handle_N(token,params,source,reply,tcp_host);
2629                 break;
2630                 // a <NICK> :<GECOS>
2631                 // change GECOS (SETNAME)
2632                 case 'a':
2633                         handle_a(token,params,source,reply,tcp_host);
2634                 break;
2635                 // b <NICK> :<HOST>
2636                 // change displayed host (SETHOST)
2637                 case 'b':
2638                         handle_b(token,params,source,reply,tcp_host);
2639                 break;
2640                 // t <NICK> <CHANNEL> :<TOPIC>
2641                 // change a channel topic
2642                 case 't':
2643                         handle_t(token,params,source,reply,tcp_host);
2644                 break;
2645                 // i <NICK> <CHANNEL>
2646                 // invite a user to a channel
2647                 case 'i':
2648                         handle_i(token,params,source,reply,tcp_host);
2649                 break;
2650                 // k <SOURCE> <DEST> <CHANNEL> :<REASON>
2651                 // kick a user from a channel
2652                 case 'k':
2653                         handle_k(token,params,source,reply,tcp_host);
2654                 break;
2655                 // n <NICK> <NEWNICK>
2656                 // change nickname of client -- a server should only be able to
2657                 // change the nicknames of clients that reside on it unless
2658                 // they are ulined.
2659                 case 'n':
2660                         handle_n(token,params,source,reply,tcp_host);
2661                 break;
2662                 // J <NICK> <CHANLIST>
2663                 // Join user to channel list, merge channel permissions
2664                 case 'J':
2665                         handle_J(token,params,source,reply,tcp_host);
2666                 break;
2667                 // T <TS> <CHANNEL> <TOPICSETTER> :<TOPIC>
2668                 // change channel topic (netburst only)
2669                 case 'T':
2670                         handle_T(token,params,source,reply,tcp_host);
2671                 break;
2672                 // M <TARGET> <MODES> [MODE-PARAMETERS]
2673                 // Server setting modes on an object
2674                 case 'M':
2675                         handle_M(token,params,source,reply,tcp_host);
2676                 break;
2677                 // m <SOURCE> <TARGET> <MODES> [MODE-PARAMETERS]
2678                 // User setting modes on an object
2679                 case 'm':
2680                         handle_m(token,params,source,reply,tcp_host);
2681                 break;
2682                 // P <SOURCE> <TARGET> :<TEXT>
2683                 // Send a private/channel message
2684                 case 'P':
2685                         handle_P(token,params,source,reply,tcp_host);
2686                 break;
2687                 // V <SOURCE> <TARGET> :<TEXT>
2688                 // Send a private/channel notice
2689                 case 'V':
2690                         handle_V(token,params,source,reply,tcp_host);
2691                 break;
2692                 // L <SOURCE> <CHANNEL> :<REASON>
2693                 // User parting a channel
2694                 case 'L':
2695                         handle_L(token,params,source,reply,tcp_host);
2696                 break;
2697                 // Q <SOURCE> :<REASON>
2698                 // user quitting
2699                 case 'Q':
2700                         handle_Q(token,params,source,reply,tcp_host);
2701                 break;
2702                 // H <SERVER>
2703                 // introduce non-meshable server (such as a services server)
2704                 case 'H':
2705                         handle_H(token,params,source,reply,tcp_host);
2706                 break;
2707                 // K <SOURCE> <DEST> :<REASON>
2708                 // remote kill
2709                 case 'K':
2710                         handle_K(token,params,source,reply,tcp_host);
2711                 break;
2712                 // @ <SOURCE> :<TEXT>
2713                 // wallops
2714                 case '@':
2715                         handle_AT(token,params,source,reply,tcp_host);
2716                 break;
2717                 // # <mask> <who-set-it> <time-set> <duration> :<reason>
2718                 // add gline
2719                 case '#':
2720                         handle_hash(token,params,source,reply,tcp_host);
2721                 break;
2722                 // . <mask> <who>
2723                 // remove gline
2724                 case '.':
2725                         handle_dot(token,params,source,reply,tcp_host);
2726                 break;
2727                 // # <mask> <who-set-it> <time-set> <duration> :<reason>
2728                 // add gline
2729                 case '{':
2730                         handle_add_sqline(token,params,source,reply,tcp_host);
2731                 break;
2732                 // . <mask> <who>
2733                 // remove gline
2734                 case '[':
2735                         handle_del_sqline(token,params,source,reply,tcp_host);
2736                 break;
2737                 // # <mask> <who-set-it> <time-set> <duration> :<reason>
2738                 // add gline
2739                 case '}':
2740                         handle_add_szline(token,params,source,reply,tcp_host);
2741                 break;
2742                 // . <mask> <who>
2743                 // remove gline
2744                 case ']':
2745                         handle_del_szline(token,params,source,reply,tcp_host);
2746                 break;
2747                 // | <nick> <opertype>
2748                 // set opertype
2749                 case '|':
2750                         handle_pipe(token,params,source,reply,tcp_host);
2751                 break;
2752                 // F <TS>
2753                 // end netburst
2754                 case 'F':
2755                         WriteOpers("Server %s has completed netburst. (%d secs)",tcp_host,TIME-nb_start);
2756                         handle_F(token,params,source,reply,tcp_host);
2757                         nb_start = 0;
2758                         // tell all the other servers to use this authcookie to connect back again
2759                         // got '+ test3.chatspike.net 7010 -2016508415' from test.chatspike.net
2760                         snprintf(buffer,MAXBUF,"+ %s %s %d %lu",tcp_host,ipaddr,port,(unsigned long)authcookie);
2761                         NetSendToAllExcept(tcp_host,buffer);
2762                 break;
2763                 case '/':
2764                         WriteOpers("Server %s is IRCServices-based server (assumes-SVSMODE) - Nickname Services: %s",tcp_host,params);
2765                         strlcpy(source->nickserv,params,NICKMAX);
2766                 break;
2767                 // F <TS>
2768                 // end netburst with no mesh creation
2769                 case 'f':
2770                         WriteOpers("Server %s has completed netburst. (%d secs)",tcp_host,TIME-nb_start);
2771                         handle_F(token,params,source,reply,tcp_host);
2772                         nb_start = 0;
2773                         // tell everyone else about the new server name so they just add it in the disconnected
2774                         // state
2775                         snprintf(buffer,MAXBUF,"u %s :%s",tcp_host,GetServerDescription(tcp_host).c_str());
2776                         NetSendToAllExcept(tcp_host,buffer);
2777                 break;
2778                 // X <reserved>
2779                 // Send netburst now
2780                 case 'X':
2781                         WriteOpers("Sending my netburst to %s",tcp_host);
2782                         DoSync(source,tcp_host);
2783                         WriteOpers("Send of netburst to %s completed",tcp_host);
2784                         NetSendMyRoutingTable();
2785                 break;
2786                 // anything else
2787                 default:
2788                         MOD_RESULT = 0;
2789                         string_list s;
2790                         char* data = strtok(params," ");
2791                         while (data)
2792                         {
2793                                 if (*data == ':')
2794                                 {
2795                                         // the last item is a special case
2796                                         data++;
2797                                         char datalast[MAXBUF];
2798                                         strlcpy(datalast,data,MAXBUF);
2799                                         data = strtok(NULL," ");
2800                                         while (data)
2801                                         {
2802                                                 strlcpy(datalast," ",MAXBUF);
2803                                                 strlcpy(datalast,data,MAXBUF);
2804                                                 data = strtok(NULL," ");
2805                                         }
2806                                         s.push_back(data);
2807                                         break;
2808                                 }
2809                                 s.push_back(data);
2810                                 data = strtok(NULL," ");
2811                         }
2812                         FOREACH_RESULT(OnMeshToken(token,s,source,reply,tcp_host,ipaddr,port));
2813                         if (!MOD_RESULT)
2814                                 WriteOpers("WARNING! Unknown datagram type '%c'",token);
2815                 break;
2816         }
2817 }
2818
2819
2820 void handle_link_packet(char* udp_msg, char* tcp_host, serverrec *serv)
2821 {
2822         if ((!strncmp(udp_msg,"USER ",5)) || (!strncmp(udp_msg,"NICK ",5)) || (!strncmp(udp_msg,"PASS ",5)) || (!strncmp(udp_msg,"SERVER ",7)))
2823         {
2824                 // a user on a server port, just close their connection.
2825                 RemoveServer(tcp_host);
2826                 return;
2827         }
2828
2829         char response[10240];
2830         char token = udp_msg[0];
2831         char* old = udp_msg;
2832
2833         if ((token != ':') && (strlen(udp_msg)>1) && (udp_msg[1] != ' '))
2834         {
2835                 WriteOpers("*** Discarded %d chars illegal data from %s",strlen(udp_msg),tcp_host);
2836         }
2837
2838         if (token == ':') // leading :servername or details - strip them off (services does this, sucky)
2839         {
2840                 char* src = udp_msg+1;
2841                 while (udp_msg[0] != ' ')
2842                         udp_msg++;
2843                 udp_msg[0] = 0;
2844                 udp_msg++;
2845                 char* comd = udp_msg;
2846                 while (udp_msg[0] != ' ')
2847                         udp_msg++;
2848                 udp_msg[0] = 0;
2849                 udp_msg++;
2850                 char data[MAXBUF];
2851                 char source[MAXBUF];
2852                 char command[MAXBUF];
2853                 strlcpy(data,udp_msg,512);
2854                 strlcpy(source,src,MAXBUF);
2855                 strlcpy(command,comd,MAXBUF);
2856                 udp_msg = old;
2857
2858                 // unused numeric:
2859                 // :services-dev.chatspike.net 433 Craig Craig :Nickname is registered to someone else
2860                 if (!strcmp(command,"433"))
2861                 {
2862                         token = '*';
2863                 }
2864                 if (!strcmp(command,"432"))
2865                 {
2866                         token = '*';
2867                 }
2868                 if (!strcmp(command,"PING"))
2869                 {
2870                         token = '*';
2871                 }
2872                 if (!strcmp(command,"NOTICE"))
2873                 {
2874                         snprintf(udp_msg,MAXBUF,"V %s %s",source,data);
2875                         log(DEBUG,"Rewrote NOTICE from services to: '%s'",udp_msg);
2876                         token = udp_msg[0];
2877                 }
2878                 if (!strcmp(command,"QUIT"))
2879                 {
2880                         if ((!udp_msg) || (!strcmp(data,"")) || (strcmp(data,":")))
2881                         {
2882                                 strcpy(data,":No reason");
2883                         }
2884                         if (!strcmp(data,":"))
2885                         {
2886                                 strcpy(data,":No reason");
2887                         }
2888                         snprintf(udp_msg,MAXBUF,"Q %s %s",source,data);
2889                         log(DEBUG,"Rewrote QUIT from services to: '%s'",udp_msg);
2890                         token = udp_msg[0];
2891                 }
2892                 if (!strcmp(command,"SQUIT"))
2893                 {
2894                         snprintf(udp_msg,MAXBUF,"& %s",source);
2895                         log(DEBUG,"Rewrote SQUIT from services to: '%s'",udp_msg);
2896                         token = udp_msg[0];
2897                 }
2898                 if (!strcmp(command,"SVSMODE"))
2899                 {
2900                         snprintf(udp_msg,MAXBUF,"m %s %s",source,data);
2901                         log(DEBUG,"Rewrote SVSMODE from services to: '%s'",udp_msg);
2902                         token = udp_msg[0];
2903                 }
2904                 if (!strcmp(command,"SVS2MODE"))
2905                 {
2906                         snprintf(udp_msg,MAXBUF,"m %s %s",source,data);
2907                         log(DEBUG,"Rewrote SVS2MODE from services to: '%s'",udp_msg);
2908                         token = udp_msg[0];
2909                 }
2910                 // todo: this wont work without u:lines
2911                 // in give_ops etc allow nick on a u:lined serv to do just about anything
2912                 if (!strcmp(command,"MODE"))
2913                 {
2914                         snprintf(udp_msg,MAXBUF,"m %s %s",source,data);
2915                         log(DEBUG,"Rewrote MODE from services to: '%s'",udp_msg);
2916                         token = udp_msg[0];
2917                 }
2918                 if (!strcmp(command,"KICK"))
2919                 {
2920                         snprintf(udp_msg,MAXBUF,"k %s %s",source,data);
2921                         log(DEBUG,"Rewrote KICK from services to: '%s'",udp_msg);
2922                         token = udp_msg[0];
2923                 }
2924                 if (!strcmp(command,"KILL"))
2925                 {
2926                         snprintf(udp_msg,MAXBUF,"K %s %s",source,data);
2927                         log(DEBUG,"Rewrote KILL from services to: '%s'",udp_msg);
2928                         token = udp_msg[0];
2929                 }
2930                 if (!strcmp(command,"SVSJOIN"))
2931                 {
2932                         snprintf(udp_msg,MAXBUF,"J %s",data);
2933                         NetSendToOne(tcp_host,udp_msg);
2934                         char* nick = strtok(data," ");
2935                         char* chan = strtok(NULL," ");
2936                         log(DEBUG,"Rewrote SVSJOIN from services to: '%s'",udp_msg);
2937                         userrec* u = Find(nick);
2938                         if (u)
2939                         {
2940                                 add_channel(u,chan,"",true);
2941                         }
2942                         token = udp_msg[0];
2943                 }
2944
2945         }
2946
2947         char* params = udp_msg + 2;
2948         char finalparam[1024];
2949         strcpy(finalparam," :xxxx");
2950         if (strstr(udp_msg," :")) {
2951                 strlcpy(finalparam,strstr(udp_msg," :"),1024);
2952         }
2953
2954
2955         if (token == '-') {
2956                 char* cookie = strtok(params," ");
2957                 char* servername = strtok(NULL," ");
2958                 char* serverdesc = finalparam+2;
2959
2960                 WriteOpers("AuthCookie CONNECT from %s (%s)",servername,tcp_host);
2961
2962                 for (int u = 0; u < auth_cookies.size(); u++)
2963                 {
2964                         if (auth_cookies[u] == atoi(cookie))
2965                         {
2966                                 WriteOpers("Allowed cookie from %s, is now part of the mesh",servername);
2967
2968
2969                                 for (int j = 0; j < 32; j++)
2970                                 {
2971                                         if (me[j] != NULL)
2972                                         {
2973                                                 for (int k = 0; k < me[j]->connectors.size(); k++)
2974                                                 {
2975                                                         if (!strcasecmp(me[j]->connectors[k].GetServerName().c_str(),tcp_host))
2976                                                         {
2977                                                                 me[j]->connectors[k].SetServerName(servername);
2978                                                                 me[j]->connectors[k].SetDescription(serverdesc);
2979                                                                 me[j]->connectors[k].SetState(STATE_CONNECTED);
2980                                                                 NetSendMyRoutingTable();
2981                                                                 return;
2982                                                         }
2983                                                 }
2984                                         }
2985                                         WriteOpers("\2WARNING!\2 %s sent us an authentication packet but we are not authenticating with this server right now! Possible intrusion attempt!",tcp_host);
2986                                         return;
2987                                 }
2988
2989
2990                                 return;
2991                         }
2992                 }
2993                 // bad cookie, bad bad! go sit in the corner!
2994                 WriteOpers("Bad cookie from %s!",servername);
2995                 return;
2996         }
2997         else
2998         if (token == 'S') {
2999                 // S test.chatspike.net password portn :ChatSpike InspIRCd test server
3000                 char* servername = strtok(params," ");
3001                 char* password = strtok(NULL," ");
3002                 char* myport = strtok(NULL," ");
3003                 char* revision = strtok(NULL," ");
3004                 char* serverdesc = finalparam+2;
3005
3006                 password = password;
3007
3008                 WriteOpers("CONNECT from %s (%s) (their port: %d)",servername,tcp_host,atoi(myport));
3009
3010                 ircd_connector* cn = serv->FindHost(servername);
3011
3012                 if (cn)
3013                 {
3014                         WriteOpers("CONNECT aborted: Server %s already exists from %s",servername,ServerName);
3015                         char buffer[MAXBUF];
3016                         snprintf(buffer,MAXBUF,"E :Server %s already exists!",servername);
3017                         serv->SendPacket(buffer,tcp_host);
3018                         RemoveServer(tcp_host);
3019                         return;
3020                 }
3021
3022                 if (atoi(revision) != GetRevision())
3023                 {
3024                         WriteOpers("CONNECT aborted: Could not link to %s, is an incompatible version %s, our version is %d",servername,revision,GetRevision());
3025                         char buffer[MAXBUF];
3026                         sprintf(buffer,"E :Version number mismatch");
3027                         serv->SendPacket(buffer,tcp_host);
3028                         RemoveServer(tcp_host);
3029                         RemoveServer(servername);
3030                         return;
3031                 }
3032
3033                 for (int j = 0; j < serv->connectors.size(); j++)
3034                 {
3035                         if (!strcasecmp(serv->connectors[j].GetServerName().c_str(),tcp_host))
3036                         {
3037                                 serv->connectors[j].SetServerName(servername);
3038                                 serv->connectors[j].SetDescription(serverdesc);
3039                                 serv->connectors[j].SetServerPort(atoi(myport));
3040                         }
3041                 }
3042
3043
3044                 char Link_ServerName[1024];
3045                 char Link_IPAddr[1024];
3046                 char Link_Port[1024];
3047                 char Link_Pass[1024];
3048                 char Link_SendPass[1024];
3049                 int LinkPort = 0;
3050
3051                 // search for a corresponding <link> block in the config files
3052                 for (int i = 0; i < ConfValueEnum("link",&config_f); i++)
3053                 {
3054                         ConfValue("link","name",i,Link_ServerName,&config_f);
3055                         ConfValue("link","ipaddr",i,Link_IPAddr,&config_f);
3056                         ConfValue("link","port",i,Link_Port,&config_f);
3057                         ConfValue("link","recvpass",i,Link_Pass,&config_f);
3058                         ConfValue("link","sendpass",i,Link_SendPass,&config_f);
3059                         log(DEBUG,"(%d) Comparing against name='%s', ipaddr='%s', port='%s', recvpass='%s'",i,Link_ServerName,Link_IPAddr,Link_Port,Link_Pass);
3060                         LinkPort = atoi(Link_Port);
3061                         if ((!strcasecmp(Link_ServerName,servername)) && (!strcmp(Link_Pass,password)))
3062                         {
3063                                 // we have a matching link line -
3064                                 // send a 'diminutive' server message back...
3065                                 snprintf(response,10240,"s %s %s :%s",ServerName,Link_SendPass,ServerDesc);
3066                                 serv->SendPacket(response,servername);
3067
3068                                 for (int t = 0; t < serv->connectors.size(); t++)
3069                                 {
3070                                         if (!strcasecmp(serv->connectors[t].GetServerName().c_str(),servername))
3071                                         {
3072                                                 serv->connectors[t].SetState(STATE_CONNECTED);
3073                                         }
3074                                 }
3075
3076                                 return;
3077                         }
3078                 }
3079                 char buffer[MAXBUF];
3080                 sprintf(buffer,"E :Access is denied (no matching link block)");
3081                 serv->SendPacket(buffer,tcp_host);
3082                 WriteOpers("CONNECT from %s denied, no matching link block",servername);
3083                 RemoveServer(tcp_host);
3084                 RemoveServer(servername);
3085                 return;
3086         }
3087         else
3088         if (token == 's') {
3089                 // S test.chatspike.net password :ChatSpike InspIRCd test server
3090                 char* servername = strtok(params," ");
3091                 char* password = strtok(NULL," ");
3092                 char* serverdesc = finalparam+2;
3093
3094                 password = password;
3095
3096                 // TODO: we should do a check here to ensure that this server is one we recently initiated a
3097                 // link with, and didnt hear an 's' or 'E' back from yet (these are the only two valid responses
3098                 // to an 'S' command. If we didn't recently send an 'S' to this server, theyre trying to spoof
3099                 // a connect, so put out an oper alert!
3100
3101                 // for now, just accept all, we'll fix that later.
3102                 WriteOpers("%s accepted our link credentials ",servername);
3103
3104                 char Link_ServerName[1024];
3105                 char Link_IPAddr[1024];
3106                 char Link_Port[1024];
3107                 char Link_Pass[1024];
3108                 char Link_SendPass[1024];
3109                 int LinkPort = 0;
3110
3111                 // search for a corresponding <link> block in the config files
3112                 for (int i = 0; i < ConfValueEnum("link",&config_f); i++)
3113                 {
3114                         ConfValue("link","name",i,Link_ServerName,&config_f);
3115                         ConfValue("link","ipaddr",i,Link_IPAddr,&config_f);
3116                         ConfValue("link","port",i,Link_Port,&config_f);
3117                         ConfValue("link","recvpass",i,Link_Pass,&config_f);
3118                         ConfValue("link","sendpass",i,Link_SendPass,&config_f);
3119                         log(DEBUG,"(%d) Comparing against name='%s', ipaddr='%s', port='%s', recvpass='%s'",i,Link_ServerName,Link_IPAddr,Link_Port,Link_Pass);
3120                         LinkPort = atoi(Link_Port);
3121                         if (!strcasecmp(Link_ServerName,servername))
3122                         {
3123                                 // matching link at this end too, we're all done!
3124                                 // at this point we must begin key exchange and insert this
3125                                 // server into our 'active' table.
3126                                 for (int j = 0; j < 32; j++)
3127                                 {
3128                                         if (me[j] != NULL)
3129                                         {
3130                                                 for (int k = 0; k < me[j]->connectors.size(); k++)
3131                                                 {
3132                                                         if (!strcasecmp(me[j]->connectors[k].GetServerName().c_str(),tcp_host))
3133                                                         {
3134                                                                 char buffer[MAXBUF];
3135                                                                 me[j]->connectors[k].SetDescription(serverdesc);
3136                                                                 me[j]->connectors[k].SetState(STATE_CONNECTED);
3137                                                                 sprintf(buffer,"X 0");
3138                                                                 serv->SendPacket(buffer,tcp_host);
3139                                                                 DoSync(me[j],tcp_host);
3140                                                                 NetSendMyRoutingTable();
3141                                                                 return;
3142                                                         }
3143                                                 }
3144                                         }
3145                                 }
3146                         }
3147                         else {
3148                                 log(DEBUG,"Server names '%s' and '%s' don't match",Link_ServerName,servername);
3149                         }
3150                 }
3151                 char buffer[MAXBUF];
3152                 sprintf(buffer,"E :Access is denied (no matching link block)");
3153                 serv->SendPacket(buffer,tcp_host);
3154                 WriteOpers("CONNECT from %s denied, no matching link block",servername);
3155                 RemoveServer(tcp_host);
3156                 RemoveServer(servername);
3157                 return;
3158         }
3159         else
3160         if (token == 'U') {
3161                 // U services.chatspike.net password :ChatSpike Services
3162                 //
3163                 // non-meshed link, used by services. Everything coming from a non-meshed link is auto broadcasted.
3164                 char* servername = strtok(params," ");
3165                 char* password = strtok(NULL," ");
3166                 char* serverdesc = finalparam+2;
3167
3168                 char Link_ServerName[1024];
3169                 char Link_IPAddr[1024];
3170                 char Link_Port[1024];
3171                 char Link_Pass[1024];
3172                 char Link_SendPass[1024];
3173                 int LinkPort = 0;
3174
3175                 log(DEBUG,"U-token linked server detected.\n\nservername='%s' password='%s'\n\n",servername,password);
3176
3177
3178                 for (int j = 0; j < 32; j++)
3179                 {
3180                         if (me[j] != NULL)
3181                         {
3182                                 for (int k = 0; k < me[j]->connectors.size(); k++)
3183                                 {
3184                                         if (!strcasecmp(me[j]->connectors[k].GetServerName().c_str(),servername))
3185                                         {
3186                                                 char buffer[MAXBUF];
3187                                                 sprintf(buffer,"E :Access is denied (Server exists in the mesh)");
3188                                                 serv->SendPacket(buffer,tcp_host);
3189                                                 WriteOpers("CONNECT from %s denied, \"%s\" already exists!",tcp_host,servername);
3190                                                 RemoveServer(tcp_host);
3191                                                 return;
3192                                         }
3193                                 }
3194                         }
3195                 }
3196
3197                 // search for a corresponding <link> block in the config files
3198                 for (int i = 0; i < ConfValueEnum("link",&config_f); i++)
3199                 {
3200                         ConfValue("link","name",i,Link_ServerName,&config_f);
3201                         ConfValue("link","ipaddr",i,Link_IPAddr,&config_f);
3202                         ConfValue("link","port",i,Link_Port,&config_f);
3203                         ConfValue("link","recvpass",i,Link_Pass,&config_f);
3204                         ConfValue("link","sendpass",i,Link_SendPass,&config_f);
3205                         log(DEBUG,"(%d) Comparing against name='%s', ipaddr='%s', port='%s', recvpass='%s'",i,Link_ServerName,Link_IPAddr,Link_Port,Link_Pass);
3206                         LinkPort = atoi(Link_Port);
3207                         if ((!strcasecmp(Link_ServerName,servername)) && (!strcmp(Link_Pass,password)))
3208                         {
3209                                 // matching link at this end too, we're all done!
3210                                 // at this point we must begin key exchange and insert this
3211                                 // server into our 'active' table.
3212                                 for (int j = 0; j < 32; j++)
3213                                 {
3214                                         if (me[j] != NULL)
3215                                         {
3216                                                 for (int k = 0; k < me[j]->connectors.size(); k++)
3217                                                 {
3218                                                         if (!strcasecmp(me[j]->connectors[k].GetServerName().c_str(),tcp_host))
3219                                                         {
3220                                                                 char buffer[MAXBUF];
3221                                                                 log(DEBUG,"Found matching link block");
3222                                                                 me[j]->connectors[k].SetDescription(serverdesc);
3223                                                                 me[j]->connectors[k].SetServerName(servername);
3224                                                                 me[j]->connectors[k].SetState(STATE_SERVICES);
3225                                                                 sprintf(buffer,"X 0");
3226                                                                 serv->SendPacket(buffer,servername);
3227                                                                 sprintf(buffer,"s %s %s %lu :%s",ServerName,Link_SendPass,LinkPort,ServerDesc);
3228                                                                 serv->SendPacket(buffer,servername);
3229                                                                 DoSync(me[j],servername);
3230                                                                 snprintf(buffer,MAXBUF,"H %s",servername);
3231                                                                 NetSendToAllExcept(servername,buffer);
3232                                                                 WriteOpers("Non-Mesh server %s has joined the network",servername);
3233                                                                 log(DEBUG,"******** SENDING MY ROUTING TABLE! *******");
3234                                                                 NetSendMyRoutingTable();
3235                                                                 return;
3236                                                         }
3237                                                 }
3238                                         }
3239                                 }
3240                         }
3241                         else {
3242                                 log(DEBUG,"Server names '%s' and '%s' don't match",Link_ServerName,servername);
3243                         }
3244                 }
3245                 log(DEBUG,"No matching link block found");
3246                 char buffer[MAXBUF];
3247                 sprintf(buffer,"E :Access is denied (no matching link block)");
3248                 serv->SendPacket(buffer,tcp_host);
3249                 WriteOpers("CONNECT from %s denied, no matching link block",servername);
3250                 RemoveServer(tcp_host);
3251                 RemoveServer(servername);
3252                 return;
3253         }
3254         else
3255         if (token == 'E') {
3256                 char* error_message = finalparam+2;
3257                 WriteOpers("ERROR from %s: %s",tcp_host,error_message);
3258                 return;
3259         }
3260         else {
3261                 for (int j = 0; j < 32; j++)
3262                 {
3263                         if (me[j] != NULL)
3264                         {
3265                                 for (int x = 0; x < me[j]->connectors.size(); x++)
3266                                 {
3267                                         log(DEBUG,"Servers are: '%s' '%s'",tcp_host,me[j]->connectors[x].GetServerName().c_str());
3268                                         if (!strcasecmp(me[j]->connectors[x].GetServerName().c_str(),tcp_host))
3269                                         {
3270                                                 if ((me[j]->connectors[x].GetState() == STATE_CONNECTED) || (me[j]->connectors[x].GetState() == STATE_SERVICES))
3271                                                 {
3272                                                         // found a valid ircd_connector.
3273                                                         process_restricted_commands(token,params,me[j],serv,tcp_host,me[j]->connectors[x].GetServerIP(),me[j]->connectors[x].GetServerPort());
3274                                                         return;
3275                                                 }
3276                                         }
3277                                 }
3278                         }
3279                 }
3280
3281                 log(DEBUG,"Unrecognised token or unauthenticated host in datagram from %s: %c",tcp_host,token);
3282         }
3283 }
3284
3285 long duration(const char* str)
3286 {
3287         char n_field[MAXBUF];
3288         long total = 0;
3289         const char* str_end = str + strlen(str);
3290         n_field[0] = 0;
3291
3292         for (char* i = (char*)str; i < str_end; i++)
3293         {
3294                 // if we have digits, build up a string for the value in n_field,
3295                 // up to 10 digits in size.
3296                 if ((*i >= '0') && (*i <= '9'))
3297                 {
3298                         strlcat(n_field,i,10);
3299                 }
3300                 else
3301                 {
3302                         // we dont have a digit, check for numeric tokens
3303                         switch (tolower(*i))
3304                         {
3305                                 case 's':
3306                                         total += atoi(n_field);
3307                                 break;
3308
3309                                 case 'm':
3310                                         total += (atoi(n_field)*duration_m);
3311                                 break;
3312
3313                                 case 'h':
3314                                         total += (atoi(n_field)*duration_h);
3315                                 break;
3316
3317                                 case 'd':
3318                                         total += (atoi(n_field)*duration_d);
3319                                 break;
3320
3321                                 case 'w':
3322                                         total += (atoi(n_field)*duration_w);
3323                                 break;
3324
3325                                 case 'y':
3326                                         total += (atoi(n_field)*duration_y);
3327                                 break;
3328                         }
3329                         n_field[0] = 0;
3330                 }
3331         }
3332         // add trailing seconds
3333         total += atoi(n_field);
3334
3335         return total;
3336 }
3337
3338
3339 void handle_kline(char **parameters, int pcnt, userrec *user)
3340 {
3341         if (pcnt >= 3)
3342         {
3343                 add_kline(duration(parameters[1]),user->nick,parameters[2],parameters[0]);
3344                 if (!duration(parameters[1]))
3345                 {
3346                         WriteOpers("*** %s added permenant K-line for %s.",user->nick,parameters[0]);
3347                 }
3348                 else
3349                 {
3350                         WriteOpers("*** %s added timed K-line for %s, expires in %d seconds.",user->nick,parameters[0],duration(parameters[1]));
3351                 }
3352         }
3353         else
3354         {
3355                 if (del_kline(parameters[0]))
3356                 {
3357                         WriteOpers("*** %s Removed K-line on %s.",user->nick,parameters[0]);
3358                 }
3359                 else
3360                 {
3361                         WriteServ(user->fd,"NOTICE %s :*** K-Line %s not found in list, try /stats k.",user->nick,parameters[0]);
3362                 }
3363         }
3364         apply_lines();
3365 }
3366
3367 void handle_eline(char **parameters, int pcnt, userrec *user)
3368 {
3369         if (pcnt >= 3)
3370         {
3371                 add_eline(duration(parameters[1]),user->nick,parameters[2],parameters[0]);
3372                 if (!duration(parameters[1]))
3373                 {
3374                         WriteOpers("*** %s added permenant E-line for %s.",user->nick,parameters[0]);
3375                 }
3376                 else
3377                 {
3378                         WriteOpers("*** %s added timed E-line for %s, expires in %d seconds.",user->nick,parameters[0],duration(parameters[1]));
3379                 }
3380         }
3381         else
3382         {
3383                 if (del_eline(parameters[0]))
3384                 {
3385                         WriteOpers("*** %s Removed E-line on %s.",user->nick,parameters[0]);
3386                 }
3387                 else
3388                 {
3389                         WriteServ(user->fd,"NOTICE %s :*** E-Line %s not found in list, try /stats e.",user->nick,parameters[0]);
3390                 }
3391         }
3392         // no need to apply the lines for an eline
3393 }
3394
3395 void handle_gline(char **parameters, int pcnt, userrec *user)
3396 {
3397         char netdata[MAXBUF];
3398         if (pcnt >= 3)
3399         {
3400                 add_gline(duration(parameters[1]),user->nick,parameters[2],parameters[0]);
3401                 // # <mask> <who-set-it> <time-set> <duration> :<reason>
3402                 snprintf(netdata,MAXBUF,"# %s %s %lu %lu :%s",parameters[0],user->nick,(unsigned long)TIME,(unsigned long)duration(parameters[1]),parameters[2]);
3403                 NetSendToAll(netdata);
3404                 if (!duration(parameters[1]))
3405                 {
3406                         WriteOpers("*** %s added permenant G-line for %s.",user->nick,parameters[0]);
3407                 }
3408                 else
3409                 {
3410                         WriteOpers("*** %s added timed G-line for %s, expires in %d seconds.",user->nick,parameters[0],duration(parameters[1]));
3411                 }
3412         }
3413         else
3414         {
3415                 if (del_gline(parameters[0]))
3416                 {
3417                         // . <mask> <who-removed-it>
3418                         snprintf(netdata,MAXBUF,". %s %s",parameters[0],user->nick);
3419                         WriteOpers("*** %s Removed G-line on %s.",user->nick,parameters[0]);
3420                 }
3421                 else
3422                 {
3423                         WriteServ(user->fd,"NOTICE %s :*** G-Line %s not found in list, try /stats g.",user->nick,parameters[0]);
3424                 }
3425         }
3426         apply_lines();
3427 }
3428
3429 void handle_zline(char **parameters, int pcnt, userrec *user)
3430 {
3431         if (pcnt >= 3)
3432         {
3433                 add_zline(duration(parameters[1]),user->nick,parameters[2],parameters[0]);
3434                 if (!duration(parameters[1]))
3435                 {
3436                         WriteOpers("*** %s added permenant Z-line for %s.",user->nick,parameters[0]);
3437                 }
3438                 else
3439                 {
3440                         WriteOpers("*** %s added timed Z-line for %s, expires in %d seconds.",user->nick,parameters[0],duration(parameters[1]));
3441                 }
3442         }
3443         else
3444         {
3445                 if (del_zline(parameters[0]))
3446                 {
3447                         WriteOpers("*** %s Removed Z-line on %s.",user->nick,parameters[0]);
3448                 }
3449                 else
3450                 {
3451                         WriteServ(user->fd,"NOTICE %s :*** Z-Line %s not found in list, try /stats Z.",user->nick,parameters[0]);
3452                 }
3453         }
3454         apply_lines();
3455 }
3456
3457 void handle_qline(char **parameters, int pcnt, userrec *user)
3458 {
3459         if (pcnt >= 3)
3460         {
3461                 add_qline(duration(parameters[1]),user->nick,parameters[2],parameters[0]);
3462                 if (!duration(parameters[1]))
3463                 {
3464                         WriteOpers("*** %s added permenant Q-line for %s.",user->nick,parameters[0]);
3465                 }
3466                 else
3467                 {
3468                         WriteOpers("*** %s added timed Q-line for %s, expires in %d seconds.",user->nick,parameters[0],duration(parameters[1]));
3469                 }
3470         }
3471         else
3472         {
3473                 if (del_qline(parameters[0]))
3474                 {
3475                         WriteOpers("*** %s Removed Q-line on %s.",user->nick,parameters[0]);
3476                 }
3477                 else
3478                 {
3479                         WriteServ(user->fd,"NOTICE %s :*** Q-Line %s not found in list, try /stats k.",user->nick,parameters[0]);
3480                 }
3481         }
3482         apply_lines();
3483 }
3484
3485