lua/luacommands.c

   1 /* Copyright (C) Chris Porter 2005-2007 */
   2 /* ALL RIGHTS RESERVED. */
   3 /* Don't put this into the SVN repo. */
   4
   5 /*
   6   @todo
   7     - Write a nick printf type thing for pcalled functions.
   8     - Make commands register as apposed to blinding calling.
   9     - Use numerics instead of huge structures, and add lookup functions.
  10 */
  11
  12 #include "../channel/channel.h"
  13 #include "../control/control.h"
  14 #include "../nick/nick.h"
  15 #include "../localuser/localuser.h"
  16 #include "../localuser/localuserchannel.h"
  17 #include "../lib/irc_string.h"
  18 #include "../lib/flags.h"
  19
  20 #include "lua.h"
  21 #include "luabot.h"
  22
  23 #include <stdarg.h>
  24 #include <stddef.h>
  25
  26 #define MAX_PUSHER 50
  27
  28 static int lua_smsg(lua_State *ps);
  29 static int lua_skill(lua_State *ps);
  30
  31 typedef struct lua_pusher {
  32   short argtype;
  33   short offset;
  34   const char *structname;
  35 } lua_pusher;
  36
  37 struct lua_pusher nickpusher[MAX_PUSHER];
  38 struct lua_pusher chanpusher[MAX_PUSHER];
  39 int nickpushercount, chanpushercount;
  40
  41 INLINE void lua_setuppusher(struct lua_pusher *pusherlist, lua_State *l, int index, struct lua_pusher **lp, int max, int pcount);
  42 INLINE int lua_usepusher(lua_State *l, struct lua_pusher **lp, void *np);
  43
  44 void lua_initnickpusher(void);
  45 void lua_initchanpusher(void);
  46
  47 #define lua_setupnickpusher(L2, I2, P2, M2) lua_setuppusher(&nickpusher[0], L2, I2, P2, M2, nickpushercount)
  48 #define lua_setupchanpusher(L2, I2, P2, M2) lua_setuppusher(&chanpusher[0], L2, I2, P2, M2, chanpushercount)
  49
  50 int lua_cmsg(char *channell, char *message, ...) {
  51   char buf[512];
  52   va_list va;
  53   channel *cp;
  54
  55   va_start(va, message);
  56   vsnprintf(buf, sizeof(buf), message, va);
  57   va_end(va);
  58
  59   cp = findchannel(channell);
  60   if(!cp)
  61     return LUA_FAIL;
  62
  63   if(!lua_lineok(buf))
  64     return LUA_FAIL;
  65
  66   lua_channelmessage(cp, "%s", buf);
  67
  68   return LUA_OK;
  69 }
  70
  71 static int lua_chanmsg(lua_State *ps) {
  72   if(!lua_isstring(ps, 1))
  73     LUA_RETURN(ps, LUA_FAIL);
  74
  75   LUA_RETURN(ps, lua_cmsg(LUA_PUKECHAN, "lua: %s", lua_tostring(ps, 1)));
  76 }
  77
  78 static int lua_ctcp(lua_State *ps) {
  79   const char *n, *msg;
  80   nick *np;
  81
  82   if(!lua_isstring(ps, 1) || !lua_isstring(ps, 2))
  83     LUA_RETURN(ps, LUA_FAIL);
  84
  85   n = lua_tostring(ps, 1);
  86   msg = lua_tostring(ps, 2);
  87
  88   np = getnickbynick(n);
  89   if(!np || !lua_lineok(msg))
  90     LUA_RETURN(ps, LUA_FAIL);
  91
  92   lua_message(np, "\001%s\001", msg);
  93
  94   LUA_RETURN(ps, lua_cmsg(LUA_PUKECHAN, "lua-ctcp: %s (%s)", np->nick, msg));
  95 }
  96
  97 static int lua_noticecmd(lua_State *ps) {
  98   const char *n, *msg;
  99   nick *np;
 100
 101   if(!lua_isstring(ps, 1) || !lua_isstring(ps, 2))
 102     LUA_RETURN(ps, LUA_FAIL);
 103
 104   n = lua_tostring(ps, 1);
 105   msg = lua_tostring(ps, 2);
 106
 107   np = getnickbynick(n);
 108   if(!np || !lua_lineok(msg))
 109     LUA_RETURN(ps, LUA_FAIL);
 110
 111   lua_notice(np, "%s", msg);
 112
 113   LUA_RETURN(ps, LUA_OK);
 114 }
 115
 116 static int lua_privmsgcmd(lua_State *ps) {
 117   const char *n, *msg;
 118   nick *np;
 119
 120   if(!lua_isstring(ps, 1) || !lua_isstring(ps, 2))
 121     LUA_RETURN(ps, LUA_FAIL);
 122
 123   n = lua_tostring(ps, 1);
 124   msg = lua_tostring(ps, 2);
 125
 126   np = getnickbynick(n);
 127   if(!np || !lua_lineok(msg))
 128     LUA_RETURN(ps, LUA_FAIL);
 129
 130   lua_message(np, "%s", msg);
 131
 132   LUA_RETURN(ps, LUA_OK);
 133 }
 134
 135 static int lua_kill(lua_State *ps) {
 136   const char *n, *msg;
 137   nick *np;
 138
 139   if(!lua_isstring(ps, 1) || !lua_isstring(ps, 2))
 140     LUA_RETURN(ps, LUA_FAIL);
 141
 142   n = lua_tostring(ps, 1);
 143   msg = lua_tostring(ps, 2);
 144
 145   np = getnickbynick(n);
 146   if(!np)
 147     LUA_RETURN(ps, LUA_FAIL);
 148
 149   if(IsOper(np) || IsService(np) || IsXOper(np))
 150     LUA_RETURN(ps, LUA_FAIL);
 151
 152   if(!lua_lineok(msg))
 153     LUA_RETURN(ps, LUA_FAIL);
 154
 155   killuser(lua_nick, np, "%s", msg);
 156
 157   LUA_RETURN(ps, lua_cmsg(LUA_PUKECHAN, "lua-KILL: %s (%s)", np->nick, msg));
 158 }
 159
 160 static int lua_kick(lua_State *ps) {
 161   const char *n, *msg, *chan;
 162   nick *np;
 163   channel *cp;
 164   int dochecks = 1;
 165
 166   if(!lua_isstring(ps, 1) || !lua_isstring(ps, 2) || !lua_isstring(ps, 3))
 167     LUA_RETURN(ps, LUA_FAIL);
 168
 169   chan = lua_tostring(ps, 1);
 170   n = lua_tostring(ps, 2);
 171   msg = lua_tostring(ps, 3);
 172
 173   if(lua_isboolean(ps, 4) && !lua_toboolean(ps, 4))
 174     dochecks = 0;
 175
 176   np = getnickbynick(n);
 177   if(!np)
 178     LUA_RETURN(ps, LUA_FAIL);
 179
 180   if(dochecks && (IsOper(np) || IsXOper(np) || IsService(np)))
 181     LUA_RETURN(ps, LUA_FAIL);
 182
 183   cp = findchannel((char *)chan);
 184   if(!cp)
 185     LUA_RETURN(ps, LUA_FAIL);
 186
 187   if(!lua_lineok(msg))
 188     LUA_RETURN(ps, LUA_FAIL);
 189
 190   localkickuser(lua_nick, cp, np, msg);
 191
 192   LUA_RETURN(ps, LUA_OK);
 193 }
 194
 195 static int lua_invite(lua_State *ps) {
 196   nick *np;
 197   channel *cp;
 198
 199   if(!lua_isstring(ps, 1) || !lua_isstring(ps, 2))
 200     LUA_RETURN(ps, LUA_FAIL);
 201
 202   np = getnickbynick((char *)lua_tostring(ps, 1));
 203   if(!np)
 204     LUA_RETURN(ps, LUA_FAIL);
 205
 206   cp = findchannel((char *)lua_tostring(ps, 2));
 207   if(!cp)
 208     LUA_RETURN(ps, LUA_FAIL);
 209
 210   localinvite(lua_nick, cp, np);
 211
 212   LUA_RETURN(ps, LUA_OK);
 213 }
 214
 215 static int lua_gline(lua_State *ps) {
 216   const char *reason;
 217   nick *target;
 218   char mask[512];
 219   int duration, usercount = 0;
 220   host *hp;
 221
 222   if(!lua_isstring(ps, 1) || !lua_isint(ps, 2) || !lua_isstring(ps, 3))
 223     LUA_RETURN(ps, LUA_FAIL);
 224
 225   duration = lua_toint(ps, 2);
 226   if((duration < 1) || (duration >  31 * 86400))
 227     LUA_RETURN(ps, LUA_FAIL);
 228
 229   reason = lua_tostring(ps, 3);
 230   if(!lua_lineok(reason) || !reason)
 231     LUA_RETURN(ps, LUA_FAIL);
 232
 233   target = getnickbynick(lua_tostring(ps, 1));
 234   if(!target || (IsOper(target) || IsXOper(target) || IsService(target)))
 235     LUA_RETURN(ps, LUA_FAIL);
 236
 237   hp = target->host;
 238   if(!hp)
 239     LUA_RETURN(ps, LUA_FAIL);
 240
 241   usercount = hp->clonecount;
 242   if(usercount > 10) { /* (decent) trusted host */
 243     int j;
 244     nick *np;
 245
 246     usercount = 0;
 247
 248     for (j=0;j<NICKHASHSIZE;j++)
 249       for (np=nicktable[j];np;np=np->next)
 250         if (np && (np->host == hp) && (!ircd_strcmp(np->ident, target->ident)))
 251           usercount++;
 252
 253     if(usercount > 50)
 254       LUA_RETURN(ps, LUA_FAIL);
 255
 256     snprintf(mask, sizeof(mask), "*%s@%s", target->ident, IPtostr(target->p_ipaddr));
 257   } else {
 258     snprintf(mask, sizeof(mask), "*@%s", IPtostr(target->p_ipaddr));
 259   }
 260
 261   irc_send("%s GL * +%s %d :%s", mynumeric->content, mask, duration, reason);
 262   LUA_RETURN(ps, lua_cmsg(LUA_PUKECHAN, "lua-GLINE: %s (%d users, %d seconds -- %s)", mask, usercount, duration, reason));
 263 }
 264
 265 static int lua_getchaninfo(lua_State *ps) {
 266   channel *cp;
 267
 268   if(!lua_isstring(ps, 1))
 269     return 0;
 270
 271   cp = findchannel((char *)lua_tostring(ps, 1));
 272   if(!cp)
 273     return 0;
 274
 275   LUA_PUSHCHAN(ps, cp);
 276
 277   return 1;
 278 }
 279
 280 static int lua_opchan(lua_State *ps) {
 281   channel *cp;
 282   nick *np;
 283
 284   if(!lua_isstring(ps, 1) || !lua_isstring(ps, 2))
 285     LUA_RETURN(ps, LUA_FAIL);
 286
 287   cp = findchannel((char *)lua_tostring(ps, 1));
 288   if(!cp)
 289     LUA_RETURN(ps, LUA_FAIL);
 290
 291   np = getnickbynick((char *)lua_tostring(ps, 2));
 292   if(!np)
 293     LUA_RETURN(ps, LUA_FAIL);
 294
 295   localsetmodes(lua_nick, cp, np, MC_OP);
 296   LUA_RETURN(ps, LUA_OK);
 297 }
 298
 299 static int lua_deopchan(lua_State *ps) {
 300   channel *cp;
 301   nick *np;
 302
 303   if(!lua_isstring(ps, 1) || !lua_isstring(ps, 2))
 304     LUA_RETURN(ps, LUA_FAIL);
 305
 306   cp = findchannel((char *)lua_tostring(ps, 1));
 307   if(!cp)
 308     LUA_RETURN(ps, LUA_FAIL);
 309
 310   np = getnickbynick((char *)lua_tostring(ps, 2));
 311   if(!np)
 312     LUA_RETURN(ps, LUA_FAIL);
 313
 314   localsetmodes(lua_nick, cp, np, MC_DEOP);
 315   LUA_RETURN(ps, LUA_OK);
 316 }
 317
 318 static int lua_voicechan(lua_State *ps) {
 319   channel *cp;
 320   nick *np;
 321
 322   if(!lua_isstring(ps, 1) || !lua_isstring(ps, 2))
 323     LUA_RETURN(ps, LUA_FAIL);
 324
 325   cp = findchannel((char *)lua_tostring(ps, 1));
 326   if(!cp)
 327     LUA_RETURN(ps, LUA_FAIL);
 328
 329   np = getnickbynick((char *)lua_tostring(ps, 2));
 330   if(!np)
 331     LUA_RETURN(ps, LUA_FAIL);
 332
 333   localsetmodes(lua_nick, cp, np, MC_VOICE);
 334   LUA_RETURN(ps, LUA_OK);
 335 }
 336
 337 static int lua_counthost(lua_State *ps) {
 338   long numeric;
 339   nick *np;
 340
 341   if(!lua_islong(ps, 1))
 342     return 0;
 343
 344   numeric = lua_tolong(ps, 1);
 345
 346   np = getnickbynumeric(numeric);
 347   if(!np)
 348     return 0;
 349
 350   lua_pushint(ps, np->host->clonecount);
 351   return 1;
 352 }
 353
 354 static int lua_versioninfo(lua_State *ps) {
 355   lua_pushstring(ps, LUA_VERSION);
 356   lua_pushstring(ps, LUA_BOTVERSION);
 357   lua_pushstring(ps, __DATE__);
 358   lua_pushstring(ps, __TIME__);
 359
 360   lua_pushstring(ps, LUA_AUXVERSION);
 361
 362   return 5;
 363 }
 364
 365 static int lua_basepath(lua_State *ps) {
 366   lua_pushfstring(ps, "%s/", cpath->content);
 367
 368   return 1;
 369 }
 370
 371 /* O(n) */
 372 static int lua_getuserbyauth(lua_State *l) {
 373   const char *acc;
 374   nick *np;
 375   int i, found = 0;
 376
 377   if(!lua_isstring(l, 1))
 378     return 0;
 379
 380   acc = lua_tostring(l, 1);
 381
 382   for(i=0;i<NICKHASHSIZE;i++) {
 383     for(np=nicktable[i];np;np=np->next) {
 384       if(np && np->authname && !ircd_strcmp(np->authname, acc)) {
 385         LUA_PUSHNICK(l, np);
 386         found++;
 387       }
 388     }
 389   }
 390
 391   return found;
 392 }
 393
 394 static int lua_getnickchans(lua_State *l) {
 395   nick *np;
 396   int i;
 397   channel **channels;
 398
 399   if(!lua_islong(l, 1))
 400     return 0;
 401
 402   np = getnickbynumeric(lua_tolong(l, 1));
 403   if(!np)
 404     return 0;
 405
 406   channels = (channel **)np->channels->content;
 407   for(i=0;i<np->channels->cursi;i++)
 408     lua_pushstring(l, channels[i]->index->name->content);
 409
 410   return np->channels->cursi;
 411 }
 412
 413 static int lua_getnickchanindex(lua_State *l) {
 414   nick *np;
 415   int offset;
 416
 417   if(!lua_islong(l, 1) || !lua_isint(l, 2))
 418     return 0;
 419
 420   np = getnickbynumeric(lua_tolong(l, 1));
 421   if(!np)
 422     return 0;
 423
 424   offset = lua_toint(l, 2);
 425   if((offset < 0) || (offset >= np->channels->cursi))
 426     return 0;
 427
 428   lua_pushstring(l, ((channel **)np->channels->content)[offset]->index->name->content);
 429
 430   return 1;
 431 }
 432
 433 int hashindex;
 434 nick *lasthashnick;
 435 static int geoipext;
 436
 437 struct lua_pusher *nickhashpusher[MAX_PUSHER];
 438
 439 static int lua_getnextnick(lua_State *l) {
 440   if(!lasthashnick && (hashindex != -1))
 441     return 0;
 442
 443   do {
 444     if(!lasthashnick) {
 445       hashindex++;
 446       if(hashindex >= NICKHASHSIZE)
 447         return 0;
 448       lasthashnick = nicktable[hashindex];
 449     } else {
 450       lasthashnick = lasthashnick->next;
 451     }
 452   } while(!lasthashnick);
 453
 454   return lua_usepusher(l, nickhashpusher, lasthashnick);
 455 }
 456
 457 static int lua_getfirstnick(lua_State *l) {
 458   hashindex = -1;
 459   lasthashnick = NULL;
 460
 461   lua_setupnickpusher(l, 1, nickhashpusher, MAX_PUSHER);
 462   geoipext = findnickext("geoip");
 463
 464   return lua_getnextnick(l);
 465 }
 466
 467 int chanhashindex;
 468 chanindex *lasthashchan;
 469
 470 struct lua_pusher *chanhashpusher[MAX_PUSHER];
 471
 472 static int lua_getnextchan(lua_State *l) {
 473   if(!lasthashchan && (chanhashindex != -1))
 474     return 0;
 475
 476   do {
 477     if(!lasthashchan) {
 478       chanhashindex++;
 479       if(chanhashindex >= CHANNELHASHSIZE)
 480         return 0;
 481       lasthashchan = chantable[chanhashindex];
 482     } else {
 483       lasthashchan = lasthashchan->next;
 484     }
 485   } while(!lasthashchan || !lasthashchan->channel);
 486
 487   return lua_usepusher(l, chanhashpusher, lasthashchan);
 488 }
 489
 490 static int lua_getfirstchan(lua_State *l) {
 491   chanhashindex = -1;
 492   lasthashchan = NULL;
 493
 494   lua_setupchanpusher(l, 1, chanhashpusher, MAX_PUSHER);
 495
 496   return lua_getnextchan(l);
 497 }
 498
 499 static int lua_getnickchancount(lua_State *l) {
 500   nick *np;
 501
 502   if(!lua_islong(l, 1))
 503     return 0;
 504
 505   np = getnickbynumeric(lua_tolong(l, 1));
 506   if(!np)
 507     return 0;
 508
 509   lua_pushint(l, np->channels->cursi);
 510
 511   return 1;
 512 }
 513
 514 static int lua_gethostusers(lua_State *l) {
 515   nick *np;
 516   int count;
 517
 518   if(!lua_islong(l, 1))
 519     return 0;
 520
 521   np = getnickbynumeric(lua_tolong(l, 1));
 522   if(!np || !np->host || !np->host->nicks)
 523     return 0;
 524
 525   np = np->host->nicks;
 526   count = np->host->clonecount;
 527
 528   do {
 529     LUA_PUSHNICK(l, np);
 530     np = np->nextbyhost;
 531   } while(np);
 532
 533   return count;
 534 }
 535
 536 static int lua_getnickcountry(lua_State *l) {
 537   nick *np;
 538   int ext;
 539
 540   ext = findnickext("geoip");
 541   if(ext == -1)
 542     return 0;
 543
 544   if(!lua_islong(l, 1))
 545     return 0;
 546
 547   np = getnickbynumeric(lua_tolong(l, 1));
 548   if(!np)
 549     return 0;
 550
 551   lua_pushint(l, (long)np->exts[ext]);
 552   return 1;
 553 }
 554
 555 static int lua_chanfix(lua_State *ps) {
 556   channel *cp;
 557   nick *np;
 558
 559   if(!lua_isstring(ps, 1))
 560     LUA_RETURN(ps, LUA_FAIL);
 561
 562   cp = findchannel((char *)lua_tostring(ps, 1));
 563   if(!cp || !cp->index)
 564     LUA_RETURN(ps, LUA_FAIL);
 565
 566   np = getnickbynick(LUA_CHANFIXBOT);
 567   if(!np)
 568     LUA_RETURN(ps, LUA_FAIL);
 569
 570   lua_message(np, "chanfix %s", cp->index->name->content);
 571
 572   LUA_RETURN(ps, LUA_OK);
 573 }
 574
 575 static int lua_clearmode(lua_State *ps) {
 576   channel *cp;
 577   int i;
 578   nick *np;
 579   unsigned long *lp;
 580   modechanges changes;
 581
 582   if(!lua_isstring(ps, 1))
 583     LUA_RETURN(ps, LUA_FAIL);
 584
 585   cp = findchannel((char *)lua_tostring(ps, 1));
 586   if(!cp || !cp->users)
 587     LUA_RETURN(ps, LUA_FAIL);
 588
 589   localsetmodeinit(&changes, cp, lua_nick);
 590
 591   localdosetmode_key(&changes, NULL, MCB_DEL);
 592   localdosetmode_simple(&changes, 0, CHANMODE_INVITEONLY | CHANMODE_LIMIT);
 593
 594   while(cp->bans)
 595     localdosetmode_ban(&changes, bantostring(cp->bans), MCB_DEL);
 596
 597   for(i=0,lp=cp->users->content;i<cp->users->hashsize;i++,lp++)
 598     if((*lp != nouser) && (*lp & CUMODE_OP)) {
 599       np = getnickbynumeric(*lp);
 600       if(np && !IsService(np))
 601         localdosetmode_nick(&changes, np, MC_DEOP);
 602     }
 603
 604   localsetmodeflush(&changes, 1);
 605
 606   LUA_RETURN(ps, LUA_OK);
 607 }
 608
 609 static int lua_ban(lua_State *ps) {
 610   channel *cp;
 611   const char *mask;
 612   modechanges changes;
 613   int dir = MCB_ADD;
 614
 615   if(!lua_isstring(ps, 1) || !lua_isstring(ps, 2))
 616     LUA_RETURN(ps, LUA_FAIL);
 617
 618   if(lua_isboolean(ps, 3) && lua_toboolean(ps, 3))
 619     dir = MCB_DEL;
 620
 621   cp = findchannel((char *)lua_tostring(ps, 1));
 622   if(!cp)
 623     LUA_RETURN(ps, LUA_FAIL);
 624
 625   mask = lua_tostring(ps, 2);
 626   if(!mask || !mask[0] || !lua_lineok(mask))
 627     LUA_RETURN(ps, LUA_FAIL);
 628
 629   localsetmodeinit(&changes, cp, lua_nick);
 630   localdosetmode_ban(&changes, mask, dir);
 631   localsetmodeflush(&changes, 1);
 632
 633   LUA_RETURN(ps, LUA_OK);
 634 }
 635
 636 static int lua_topic(lua_State *ps) {
 637   channel *cp;
 638   char *topic;
 639
 640   if(!lua_isstring(ps, 1) || !lua_isstring(ps, 2))
 641     LUA_RETURN(ps, LUA_FAIL);
 642
 643   cp = findchannel((char *)lua_tostring(ps, 1));
 644   if(!cp)
 645     LUA_RETURN(ps, LUA_FAIL);
 646
 647   topic = (char *)lua_tostring(ps, 2);
 648   if(!topic || !lua_lineok(topic))
 649     LUA_RETURN(ps, LUA_FAIL);
 650
 651   localsettopic(lua_nick, cp, topic);
 652
 653   LUA_RETURN(ps, LUA_OK);
 654 }
 655
 656 static int lua_getuserchanmodes(lua_State *l) {
 657   nick *np;
 658   channel *cp;
 659   unsigned long *lp;
 660
 661   if(!lua_islong(l, 1) || !lua_isstring(l, 2))
 662     return 0;
 663
 664   np = getnickbynumeric(lua_tolong(l, 1));
 665   if(!np)
 666     return 0;
 667
 668   cp = findchannel((char *)lua_tostring(l, 2));
 669   if(!cp || !cp->users)
 670     return 0;
 671
 672   lp = getnumerichandlefromchanhash(cp->users, np->numeric);
 673   if(!lp)
 674     return 0;
 675
 676   LUA_PUSHNICKCHANMODES(l, lp);
 677   return 1;
 678 }
 679
 680 static int lua_getusermodes(lua_State *l) {
 681   nick *np;
 682
 683   if(!lua_islong(l, 1))
 684     return 0;
 685
 686   np = getnickbynumeric(lua_tolong(l, 1));
 687   if(!np)
 688     return 0;
 689
 690   lua_pushstring(l, printflags(np->umodes, umodeflags));
 691   return 1;
 692 }
 693
 694 static int lua_getnickbynick(lua_State *l) {
 695   nick *np;
 696
 697   if(!lua_isstring(l, 1))
 698     return 0;
 699
 700   np = getnickbynick(lua_tostring(l, 1));
 701   if(!np)
 702     return 0;
 703
 704   LUA_PUSHNICK(l, np);
 705   return 1;
 706 }
 707
 708 static int lua_getnickbynumeric(lua_State *l) {
 709   nick *np;
 710
 711   if(!lua_islong(l, 1))
 712     return 0;
 713
 714   np = getnickbynumeric(lua_tolong(l, 1));
 715   if(!np)
 716     return 0;
 717
 718   LUA_PUSHNICK(l, np);
 719   return 1;
 720 }
 721
 722 static int lua_fastgetnickbynumeric(lua_State *l) {
 723   static struct lua_pusher *ourpusher[MAX_PUSHER];
 724   nick *np;
 725
 726   if(!lua_islong(l, 1))
 727     return 0;
 728
 729   np = getnickbynumeric(lua_tolong(l, 1));
 730   if(!np)
 731     return 0;
 732
 733   lua_setupnickpusher(l, 2, ourpusher, MAX_PUSHER);
 734   return lua_usepusher(l, ourpusher, np);
 735 }
 736
 737 int channelnicklistindex, channelnicklistcount = -1;
 738 channel *channelnicklist;
 739
 740 struct lua_pusher *channelnickpusher[MAX_PUSHER];
 741
 742 static int lua_getnextchannick(lua_State *l) {
 743   nick *np;
 744
 745   do {
 746     channelnicklistindex++;
 747
 748     if(channelnicklistindex >= channelnicklistcount)
 749       return 0;
 750   } while((channelnicklist->users->content[channelnicklistindex] == nouser) || !(np = getnickbynumeric(channelnicklist->users->content[channelnicklistindex])));
 751
 752   return lua_usepusher(l, channelnickpusher, np);
 753 }
 754
 755 static int lua_getfirstchannick(lua_State *l) {
 756   if(!lua_isstring(l, 1))
 757     return 0;
 758
 759   channelnicklist = findchannel((char *)lua_tostring(l, 1));
 760   if(!channelnicklist|| !channelnicklist->users)
 761     return 0;
 762
 763   channelnicklistindex = -1;
 764   channelnicklistcount = channelnicklist->users->hashsize;
 765
 766   lua_setupnickpusher(l, 2, channelnickpusher, MAX_PUSHER);
 767
 768   return lua_getnextchannick(l);
 769 }
 770
 771 static int lua_nickonchan(lua_State *l) {
 772   int success = 0;
 773   if(lua_islong(l, 1) && lua_isstring(l, 2)) {
 774     channel *cp = findchannel((char *)lua_tostring(l, 2));
 775     if(cp && cp->users) {
 776       unsigned long *lp = getnumerichandlefromchanhash(cp->users, lua_tolong(l, 1));
 777       if(lp)
 778         success = 1;
 779     }
 780   }
 781
 782   lua_pushboolean(l, success);
 783   return 1;
 784 }
 785
 786 static int lua_simplechanmode(lua_State *ps) {
 787   channel *cp;
 788   char *modes;
 789   flag_t add = 0, del = ~add;
 790   flag_t permitted = CHANMODE_NOEXTMSG | CHANMODE_TOPICLIMIT | CHANMODE_SECRET | CHANMODE_PRIVATE | CHANMODE_INVITEONLY | CHANMODE_MODERATE | CHANMODE_NOCOLOUR | CHANMODE_NOCTCP | CHANMODE_REGONLY | CHANMODE_DELJOINS | CHANMODE_NOQUITMSG | CHANMODE_NONOTICE;
 791   modechanges changes;
 792
 793   if(!lua_isstring(ps, 1) || !lua_isstring(ps, 2))
 794     LUA_RETURN(ps, LUA_FAIL);
 795
 796   cp = findchannel((char *)lua_tostring(ps, 1));
 797   if(!cp)
 798     LUA_RETURN(ps, LUA_FAIL);
 799
 800   modes = (char *)lua_tostring(ps, 2);
 801   if(!modes)
 802     LUA_RETURN(ps, LUA_FAIL);
 803
 804   if(setflags(&add, permitted, modes, cmodeflags, REJECT_DISALLOWED|REJECT_UNKNOWN) != REJECT_NONE)
 805     LUA_RETURN(ps, LUA_FAIL);
 806
 807   if(setflags(&del, permitted, modes, cmodeflags, REJECT_DISALLOWED|REJECT_UNKNOWN) != REJECT_NONE)
 808     LUA_RETURN(ps, LUA_FAIL);
 809
 810   localsetmodeinit(&changes, cp, lua_nick);
 811   localdosetmode_simple(&changes, add, ~del);
 812   localsetmodeflush(&changes, 1);
 813
 814   LUA_RETURN(ps, LUA_OK);
 815 }
 816
 817 static int lua_sethost(lua_State *ps) {
 818   char *ident, *host;
 819   nick *np;
 820
 821   if(!lua_islong(ps, 1) || !lua_isstring(ps, 2) || !lua_isstring(ps, 3))
 822     LUA_RETURN(ps, LUA_FAIL);
 823
 824   np = getnickbynumeric(lua_tolong(ps, 1));
 825   if(!np)
 826     LUA_RETURN(ps, LUA_FAIL);
 827
 828   ident = (char *)lua_tostring(ps, 2);
 829   host = (char *)lua_tostring(ps, 3);
 830   if(!lua_lineok(ident) || !lua_lineok(host))
 831     LUA_RETURN(ps, LUA_FAIL);
 832
 833   sethostuser(np, ident, host);
 834
 835   LUA_RETURN(ps, LUA_OK);
 836 }
 837
 838 void lua_registercommands(lua_State *l) {
 839   lua_register(l, "irc_smsg", lua_smsg);
 840   lua_register(l, "irc_skill", lua_skill);
 841
 842   lua_register(l, "chanmsg", lua_chanmsg);
 843   lua_register(l, "versioninfo", lua_versioninfo);
 844   lua_register(l, "basepath", lua_basepath);
 845
 846   lua_register(l, "irc_report", lua_chanmsg);
 847   lua_register(l, "irc_ctcp", lua_ctcp);
 848   lua_register(l, "irc_kill", lua_kill);
 849   lua_register(l, "irc_kick", lua_kick);
 850   lua_register(l, "irc_invite", lua_invite);
 851   lua_register(l, "irc_gline", lua_gline);
 852   lua_register(l, "irc_getchaninfo", lua_getchaninfo);
 853   lua_register(l, "irc_counthost", lua_counthost);
 854   lua_register(l, "irc_getuserbyauth", lua_getuserbyauth);
 855   lua_register(l, "irc_notice", lua_noticecmd);
 856   lua_register(l, "irc_privmsg", lua_privmsgcmd);
 857   lua_register(l, "irc_opchan", lua_opchan);
 858   lua_register(l, "irc_voicechan", lua_voicechan);
 859   lua_register(l, "irc_chanfix", lua_chanfix);
 860   lua_register(l, "irc_clearmode", lua_clearmode);
 861   lua_register(l, "irc_ban", lua_ban);
 862   lua_register(l, "irc_deopchan", lua_deopchan);
 863   lua_register(l, "irc_topic", lua_topic);
 864
 865   lua_register(l, "irc_getnickbynick", lua_getnickbynick);
 866   lua_register(l, "irc_getnickbynumeric", lua_getnickbynumeric);
 867   lua_register(l, "irc_getfirstnick", lua_getfirstnick);
 868   lua_register(l, "irc_getnextnick", lua_getnextnick);
 869
 870   lua_register(l, "irc_getnickchans", lua_getnickchans);
 871   lua_register(l, "irc_getnickchanindex", lua_getnickchanindex);
 872   lua_register(l, "irc_getnickchancount", lua_getnickchancount);
 873
 874   lua_register(l, "irc_getuserchanmodes", lua_getuserchanmodes);
 875
 876   lua_register(l, "irc_getfirstchannick", lua_getfirstchannick);
 877   lua_register(l, "irc_getnextchannick", lua_getnextchannick);
 878
 879   lua_register(l, "irc_gethostusers", lua_gethostusers);
 880   lua_register(l, "irc_getnickcountry", lua_getnickcountry);
 881
 882   lua_register(l, "irc_getfirstchan", lua_getfirstchan);
 883   lua_register(l, "irc_getnextchan", lua_getnextchan);
 884   lua_register(l, "irc_getusermodes", lua_getusermodes);
 885   lua_register(l, "irc_nickonchan", lua_nickonchan);
 886
 887   lua_register(l, "irc_fastgetnickbynumeric", lua_fastgetnickbynumeric);
 888
 889   lua_register(l, "irc_simplechanmode", lua_simplechanmode);
 890   lua_register(l, "irc_sethost", lua_sethost);
 891 }
 892
 893 /* --- */
 894
 895 static int lua_smsg(lua_State *ps) {
 896   if(!lua_isstring(ps, 1) || !lua_isstring(ps, 2))
 897     LUA_RETURN(ps, LUA_FAIL);
 898
 899   LUA_RETURN(ps, lua_cmsg((char *)lua_tostring(ps, 2), "%s", lua_tostring(ps, 1)));
 900 }
 901
 902 static int lua_skill(lua_State *ps) {
 903   const char *n, *msg;
 904   nick *np;
 905
 906   if(!lua_isstring(ps, 1) || !lua_isstring(ps, 2))
 907     LUA_RETURN(ps, LUA_FAIL);
 908
 909   n = lua_tostring(ps, 1);
 910   msg = lua_tostring(ps, 2);
 911
 912   np = getnickbynick(n);
 913   if(!np)
 914     LUA_RETURN(ps, LUA_FAIL);
 915
 916   if(IsOper(np) || IsService(np) || IsXOper(np))
 917     LUA_RETURN(ps, LUA_FAIL);
 918
 919   if(!lua_lineok(msg))
 920     LUA_RETURN(ps, LUA_FAIL);
 921
 922   killuser(lua_nick, np, "%s", msg);
 923
 924   LUA_RETURN(ps, LUA_OK);
 925 }
 926
 927 #define PUSHER_STRING 1
 928 #define PUSHER_REALNAME 2
 929 #define PUSHER_IP 3
 930 #define PUSHER_LONG 4
 931 #define PUSHER_HOSTNAME 5
 932 #define PUSHER_SSTRING 6
 933 #define PUSHER_TOTALUSERS 7
 934 #define PUSHER_TOPIC 8
 935 #define PUSHER_UMODES 9
 936 #define PUSHER_COUNTRY 10
 937
 938 void lua_initnickpusher(void) {
 939   int i = 0;
 940
 941 #define PUSH_NICKPUSHER(F2, O2) nickpusher[i].argtype = F2; nickpusher[i].structname = #O2; nickpusher[i].offset = offsetof(nick, O2); i++;
 942 #define PUSH_NICKPUSHER_CUSTOM(F2, custom) nickpusher[i].argtype = F2; nickpusher[i].structname = custom; nickpusher[i].offset = 0; i++;
 943
 944   PUSH_NICKPUSHER(PUSHER_STRING, nick);
 945   PUSH_NICKPUSHER(PUSHER_STRING, ident);
 946   PUSH_NICKPUSHER(PUSHER_HOSTNAME, host);
 947   PUSH_NICKPUSHER(PUSHER_REALNAME, realname);
 948   PUSH_NICKPUSHER(PUSHER_STRING, authname);
 949   PUSH_NICKPUSHER(PUSHER_IP, ipnode);
 950   PUSH_NICKPUSHER(PUSHER_LONG, numeric);
 951   PUSH_NICKPUSHER(PUSHER_LONG, timestamp);
 952   PUSH_NICKPUSHER(PUSHER_LONG, accountts);
 953   PUSH_NICKPUSHER(PUSHER_UMODES, umodes);
 954   PUSH_NICKPUSHER_CUSTOM(PUSHER_COUNTRY, "country");
 955
 956   nickpushercount = i;
 957   nickpusher[i].argtype = 0;
 958 }
 959
 960 INLINE void lua_setuppusher(struct lua_pusher *pusherlist, lua_State *l, int index, struct lua_pusher **lp, int max, int pcount) {
 961   int current = 0;
 962
 963   if(max > 0)
 964     lp[0] = NULL;
 965
 966   if(!lua_istable(l, index) || (max < 2))
 967     return;
 968
 969   lua_pushnil(l);
 970
 971   max--;
 972
 973   while(lua_next(l, index)) {
 974     if(lua_isint(l, -1)) {
 975       int index = lua_toint(l, -1);
 976       if((index >= 0) && (index < pcount))
 977         lp[current++] = &pusherlist[index];
 978     }
 979
 980     lua_pop(l, 1);
 981
 982     if(current == max)
 983       break;
 984   }
 985
 986   lp[current] = NULL;
 987 }
 988
 989 INLINE int lua_usepusher(lua_State *l, struct lua_pusher **lp, void *np) {
 990   int i = 0;
 991
 992   while(*lp) {
 993     void *offset = (void *)np + (*lp)->offset;
 994
 995     switch((*lp)->argtype) {
 996       case PUSHER_STRING:
 997         lua_pushstring(l, (char *)offset);
 998         break;
 999       case PUSHER_HOSTNAME:
1000         lua_pushstring(l, (*(host **)offset)->name->content);
1001         break;
1002       case PUSHER_REALNAME:
1003         lua_pushstring(l, (*(realname **)offset)->name->content);
1004         break;
1005       case PUSHER_SSTRING:
1006         lua_pushstring(l, (*((sstring **)offset))->content);
1007         break;
1008       case PUSHER_LONG:
1009         lua_pushlong(l, *((long *)offset));
1010         break;
1011       case PUSHER_IP:
1012         lua_pushstring(l, IPtostr((*((patricia_node_t **)offset))->prefix->sin));
1013         break;
1014       case PUSHER_TOTALUSERS:
1015         lua_pushint(l, (*((channel **)offset))->users->totalusers);
1016         break;
1017       case PUSHER_UMODES:
1018         lua_pushstring(l, printflags(*((flag_t *)offset), umodeflags));
1019         break;
1020       case PUSHER_TOPIC:
1021         if((*((channel **)offset))->topic) {
1022           lua_pushstring(l, (*((channel **)offset))->topic->content);
1023         } else {
1024           lua_pushnil(l);
1025         }
1026         break;
1027       case PUSHER_COUNTRY:
1028         if(geoipext < 0) {
1029           lua_pushint(l, -1);
1030         } else {
1031           lua_pushint(l, (long)((nick *)offset)->exts[geoipext]);
1032         }
1033         break;
1034     }
1035
1036     i++;
1037     lp++;
1038   }
1039
1040   return i;
1041 }
1042
1043 void lua_initchanpusher(void) {
1044   int i = 0;
1045
1046 #define PUSH_CHANPUSHER(F2, O2, N2) chanpusher[i].argtype = F2; chanpusher[i].structname = N2; chanpusher[i].offset = offsetof(chanindex, O2); i++;
1047
1048   PUSH_CHANPUSHER(PUSHER_SSTRING, name, "name");
1049   PUSH_CHANPUSHER(PUSHER_TOTALUSERS, channel, "totalusers");
1050   PUSH_CHANPUSHER(PUSHER_TOPIC, channel, "topic");
1051
1052   chanpushercount = i;
1053   chanpusher[i].argtype = 0;
1054 }