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 #include "../authext/authext.h"
  20
  21 #include "lua.h"
  22 #include "luabot.h"
  23
  24 #include <stdarg.h>
  25 #include <stddef.h>
  26
  27 #define MAX_PUSHER 50
  28
  29 static int lua_smsg(lua_State *ps);
  30 static int lua_skill(lua_State *ps);
  31
  32 typedef struct lua_pusher {
  33   short argtype;
  34   short offset;
  35   const char *structname;
  36 } lua_pusher;
  37
  38 struct lua_pusher nickpusher[MAX_PUSHER];
  39 struct lua_pusher chanpusher[MAX_PUSHER];
  40 int nickpushercount, chanpushercount;
  41
  42 void lua_setuppusher(struct lua_pusher *pusherlist, lua_State *l, int index, struct lua_pusher **lp, int max, int pcount);
  43 int lua_usepusher(lua_State *l, struct lua_pusher **lp, void *np);
  44
  45 void lua_initnickpusher(void);
  46 void lua_initchanpusher(void);
  47
  48 #define lua_setupnickpusher(L2, I2, P2, M2) lua_setuppusher(&nickpusher[0], L2, I2, P2, M2, nickpushercount)
  49 #define lua_setupchanpusher(L2, I2, P2, M2) lua_setuppusher(&chanpusher[0], L2, I2, P2, M2, chanpushercount)
  50
  51 int lua_cmsg(char *channell, char *message, ...) __attribute__ ((format (printf, 2, 3)));
  52
  53 int lua_cmsg(char *channell, char *message, ...) {
  54   char buf[512];
  55   va_list va;
  56   channel *cp;
  57
  58   va_start(va, message);
  59   vsnprintf(buf, sizeof(buf), message, va);
  60   va_end(va);
  61
  62   cp = findchannel(channell);
  63   if(!cp)
  64     return LUA_FAIL;
  65
  66   if(!lua_lineok(buf))
  67     return LUA_FAIL;
  68
  69   lua_channelmessage(cp, "%s", buf);
  70
  71   return LUA_OK;
  72 }
  73
  74 static int lua_chanmsg(lua_State *ps) {
  75   if(!lua_isstring(ps, 1))
  76     LUA_RETURN(ps, LUA_FAIL);
  77
  78   LUA_RETURN(ps, lua_cmsg(LUA_PUKECHAN, "lua: %s", lua_tostring(ps, 1)));
  79 }
  80
  81 static int lua_ctcp(lua_State *ps) {
  82   const char *n, *msg;
  83   nick *np;
  84
  85   if(!lua_isstring(ps, 1) || !lua_isstring(ps, 2))
  86     LUA_RETURN(ps, LUA_FAIL);
  87
  88   n = lua_tostring(ps, 1);
  89   msg = lua_tostring(ps, 2);
  90
  91   np = getnickbynick(n);
  92   if(!np || !lua_lineok(msg))
  93     LUA_RETURN(ps, LUA_FAIL);
  94
  95   lua_message(np, "\001%s\001", msg);
  96
  97   LUA_RETURN(ps, lua_cmsg(LUA_PUKECHAN, "lua-ctcp: %s (%s)", np->nick, msg));
  98 }
  99
 100 static int lua_noticecmd(lua_State *ps) {
 101   const char *n, *msg;
 102   nick *np;
 103
 104   if(!lua_isstring(ps, 1) || !lua_isstring(ps, 2))
 105     LUA_RETURN(ps, LUA_FAIL);
 106
 107   n = lua_tostring(ps, 1);
 108   msg = lua_tostring(ps, 2);
 109
 110   np = getnickbynick(n);
 111   if(!np || !lua_lineok(msg))
 112     LUA_RETURN(ps, LUA_FAIL);
 113
 114   lua_notice(np, "%s", msg);
 115
 116   LUA_RETURN(ps, LUA_OK);
 117 }
 118
 119 static int lua_privmsgcmd(lua_State *ps) {
 120   const char *n, *msg;
 121   nick *np;
 122
 123   if(!lua_isstring(ps, 1) || !lua_isstring(ps, 2))
 124     LUA_RETURN(ps, LUA_FAIL);
 125
 126   n = lua_tostring(ps, 1);
 127   msg = lua_tostring(ps, 2);
 128
 129   np = getnickbynick(n);
 130   if(!np || !lua_lineok(msg))
 131     LUA_RETURN(ps, LUA_FAIL);
 132
 133   lua_message(np, "%s", msg);
 134
 135   LUA_RETURN(ps, LUA_OK);
 136 }
 137
 138 static int lua_kill(lua_State *ps) {
 139   const char *n, *msg;
 140   nick *np;
 141
 142   if(!lua_isstring(ps, 1) || !lua_isstring(ps, 2))
 143     LUA_RETURN(ps, LUA_FAIL);
 144
 145   n = lua_tostring(ps, 1);
 146   msg = lua_tostring(ps, 2);
 147
 148   np = getnickbynick(n);
 149   if(!np)
 150     LUA_RETURN(ps, LUA_FAIL);
 151
 152   if(IsOper(np) || IsService(np) || IsXOper(np))
 153     LUA_RETURN(ps, LUA_FAIL);
 154
 155   if(!lua_lineok(msg))
 156     LUA_RETURN(ps, LUA_FAIL);
 157
 158   killuser(lua_nick, np, "%s", msg);
 159
 160   LUA_RETURN(ps, lua_cmsg(LUA_PUKECHAN, "lua-KILL: %s (%s)", np->nick, msg));
 161 }
 162
 163 static int lua_kick(lua_State *ps) {
 164   const char *n, *msg, *chan;
 165   nick *np;
 166   channel *cp;
 167   int dochecks = 1;
 168
 169   if(!lua_isstring(ps, 1) || !lua_isstring(ps, 2) || !lua_isstring(ps, 3))
 170     LUA_RETURN(ps, LUA_FAIL);
 171
 172   chan = lua_tostring(ps, 1);
 173   n = lua_tostring(ps, 2);
 174   msg = lua_tostring(ps, 3);
 175
 176   if(lua_isboolean(ps, 4) && !lua_toboolean(ps, 4))
 177     dochecks = 0;
 178
 179   np = getnickbynick(n);
 180   if(!np)
 181     LUA_RETURN(ps, LUA_FAIL);
 182
 183   if(dochecks && (IsOper(np) || IsXOper(np) || IsService(np)))
 184     LUA_RETURN(ps, LUA_FAIL);
 185
 186   cp = findchannel((char *)chan);
 187   if(!cp)
 188     LUA_RETURN(ps, LUA_FAIL);
 189
 190   if(!lua_lineok(msg))
 191     LUA_RETURN(ps, LUA_FAIL);
 192
 193   localkickuser(lua_nick, cp, np, msg);
 194
 195   LUA_RETURN(ps, LUA_OK);
 196 }
 197
 198 static int lua_invite(lua_State *ps) {
 199   nick *np;
 200   channel *cp;
 201
 202   if(!lua_isstring(ps, 1) || !lua_isstring(ps, 2))
 203     LUA_RETURN(ps, LUA_FAIL);
 204
 205   np = getnickbynick((char *)lua_tostring(ps, 1));
 206   if(!np)
 207     LUA_RETURN(ps, LUA_FAIL);
 208
 209   cp = findchannel((char *)lua_tostring(ps, 2));
 210   if(!cp)
 211     LUA_RETURN(ps, LUA_FAIL);
 212
 213   localinvite(lua_nick, cp, np);
 214
 215   LUA_RETURN(ps, LUA_OK);
 216 }
 217
 218 static int lua_gline(lua_State *ps) {
 219   const char *reason;
 220   nick *target;
 221   char mask[512];
 222   int duration, usercount = 0;
 223   host *hp;
 224
 225   if(!lua_isstring(ps, 1) || !lua_isint(ps, 2) || !lua_isstring(ps, 3))
 226     LUA_RETURN(ps, LUA_FAIL);
 227
 228   duration = lua_toint(ps, 2);
 229   if((duration < 1) || (duration >  31 * 86400))
 230     LUA_RETURN(ps, LUA_FAIL);
 231
 232   reason = lua_tostring(ps, 3);
 233   if(!lua_lineok(reason) || !reason)
 234     LUA_RETURN(ps, LUA_FAIL);
 235
 236   target = getnickbynick(lua_tostring(ps, 1));
 237   if(!target || (IsOper(target) || IsXOper(target) || IsService(target)))
 238     LUA_RETURN(ps, LUA_FAIL);
 239
 240   hp = target->host;
 241   if(!hp)
 242     LUA_RETURN(ps, LUA_FAIL);
 243
 244   usercount = hp->clonecount;
 245   if(usercount > 10) { /* (decent) trusted host */
 246     int j;
 247     nick *np;
 248
 249     usercount = 0;
 250
 251     for (j=0;j<NICKHASHSIZE;j++)
 252       for (np=nicktable[j];np;np=np->next)
 253         if (np && (np->host == hp) && (!ircd_strcmp(np->ident, target->ident)))
 254           usercount++;
 255
 256     if(usercount > 50)
 257       LUA_RETURN(ps, LUA_FAIL);
 258
 259     snprintf(mask, sizeof(mask), "*%s@%s", target->ident, IPtostr(target->p_ipaddr));
 260   } else {
 261     snprintf(mask, sizeof(mask), "*@%s", IPtostr(target->p_ipaddr));
 262   }
 263
 264   irc_send("%s GL * +%s %d %jd :%s", mynumeric->content, mask, duration, (intmax_t)getnettime(), reason);
 265   LUA_RETURN(ps, lua_cmsg(LUA_PUKECHAN, "lua-GLINE: %s (%d users, %d seconds -- %s)", mask, usercount, duration, reason));
 266 }
 267
 268 static int lua_fastgetchaninfo(lua_State *ps) {
 269   static struct lua_pusher *ourpusher[MAX_PUSHER];
 270   channel *cp;
 271
 272   if(!lua_isstring(ps, 1))
 273     return 0;
 274
 275   cp = findchannel((char *)lua_tostring(ps, 1));
 276   if(!cp || cp->index->channel != cp)
 277     return 0;
 278
 279   lua_setupchanpusher(ps, 2, ourpusher, MAX_PUSHER);
 280   return lua_usepusher(ps, ourpusher, cp->index);
 281 }
 282
 283 static int lua_opchan(lua_State *ps) {
 284   channel *cp;
 285   nick *np;
 286
 287   if(!lua_isstring(ps, 1) || !lua_isstring(ps, 2))
 288     LUA_RETURN(ps, LUA_FAIL);
 289
 290   cp = findchannel((char *)lua_tostring(ps, 1));
 291   if(!cp)
 292     LUA_RETURN(ps, LUA_FAIL);
 293
 294   np = getnickbynick((char *)lua_tostring(ps, 2));
 295   if(!np)
 296     LUA_RETURN(ps, LUA_FAIL);
 297
 298   localsetmodes(lua_nick, cp, np, MC_OP);
 299   LUA_RETURN(ps, LUA_OK);
 300 }
 301
 302 static int lua_deopchan(lua_State *ps) {
 303   channel *cp;
 304   nick *np;
 305
 306   if(!lua_isstring(ps, 1) || !lua_isstring(ps, 2))
 307     LUA_RETURN(ps, LUA_FAIL);
 308
 309   cp = findchannel((char *)lua_tostring(ps, 1));
 310   if(!cp)
 311     LUA_RETURN(ps, LUA_FAIL);
 312
 313   np = getnickbynick((char *)lua_tostring(ps, 2));
 314   if(!np)
 315     LUA_RETURN(ps, LUA_FAIL);
 316
 317   localsetmodes(lua_nick, cp, np, MC_DEOP);
 318   LUA_RETURN(ps, LUA_OK);
 319 }
 320
 321 static int lua_voicechan(lua_State *ps) {
 322   channel *cp;
 323   nick *np;
 324
 325   if(!lua_isstring(ps, 1) || !lua_isstring(ps, 2))
 326     LUA_RETURN(ps, LUA_FAIL);
 327
 328   cp = findchannel((char *)lua_tostring(ps, 1));
 329   if(!cp)
 330     LUA_RETURN(ps, LUA_FAIL);
 331
 332   np = getnickbynick((char *)lua_tostring(ps, 2));
 333   if(!np)
 334     LUA_RETURN(ps, LUA_FAIL);
 335
 336   localsetmodes(lua_nick, cp, np, MC_VOICE);
 337   LUA_RETURN(ps, LUA_OK);
 338 }
 339
 340 static int lua_counthost(lua_State *ps) {
 341   long numeric;
 342   nick *np;
 343
 344   if(!lua_islong(ps, 1))
 345     return 0;
 346
 347   numeric = lua_tolong(ps, 1);
 348
 349   np = getnickbynumeric(numeric);
 350   if(!np)
 351     return 0;
 352
 353   lua_pushint(ps, np->host->clonecount);
 354   return 1;
 355 }
 356
 357 static int lua_versioninfo(lua_State *ps) {
 358   lua_pushstring(ps, LUA_VERSION);
 359   lua_pushstring(ps, LUA_BOTVERSION);
 360   lua_pushstring(ps, __DATE__);
 361   lua_pushstring(ps, __TIME__);
 362
 363   lua_pushstring(ps, LUA_AUXVERSION);
 364
 365   return 5;
 366 }
 367
 368 static int lua_basepath(lua_State *ps) {
 369   lua_pushfstring(ps, "%s/", cpath->content);
 370
 371   return 1;
 372 }
 373
 374 static int lua_botnick(lua_State *ps) {
 375   lua_pushstring(ps, luabotnick->content);
 376
 377   return 1;
 378 }
 379
 380 static int lua_getuserbyauth(lua_State *l) {
 381   nick *np;
 382   int found = 0;
 383   authname *au;
 384
 385   if(!lua_isstring(l, 1))
 386     return 0;
 387
 388   au = getauthbyname(lua_tostring(l, 1));
 389   if(!au)
 390     return 0;
 391
 392   for(np=au->nicks;np;np=np->nextbyauthname) {
 393     lua_pushnumeric(l, np->numeric);
 394     found++;
 395   }
 396
 397   return found;
 398 }
 399
 400 static int lua_getnickchans(lua_State *l) {
 401   nick *np;
 402   int i;
 403   channel **channels;
 404
 405   if(!lua_islong(l, 1))
 406     return 0;
 407
 408   np = getnickbynumeric(lua_tolong(l, 1));
 409   if(!np)
 410     return 0;
 411
 412   channels = (channel **)np->channels->content;
 413   for(i=0;i<np->channels->cursi;i++)
 414     lua_pushstring(l, channels[i]->index->name->content);
 415
 416   return np->channels->cursi;
 417 }
 418
 419 static int lua_getnickchanindex(lua_State *l) {
 420   nick *np;
 421   int offset;
 422
 423   if(!lua_islong(l, 1) || !lua_isint(l, 2))
 424     return 0;
 425
 426   np = getnickbynumeric(lua_tolong(l, 1));
 427   if(!np)
 428     return 0;
 429
 430   offset = lua_toint(l, 2);
 431   if((offset < 0) || (offset >= np->channels->cursi))
 432     return 0;
 433
 434   lua_pushstring(l, ((channel **)np->channels->content)[offset]->index->name->content);
 435
 436   return 1;
 437 }
 438
 439 int hashindex;
 440 nick *lasthashnick;
 441 static int geoipext;
 442
 443 struct lua_pusher *nickhashpusher[MAX_PUSHER];
 444
 445 static int lua_getnextnick(lua_State *l) {
 446   if(!lasthashnick && (hashindex != -1))
 447     return 0;
 448
 449   do {
 450     if(!lasthashnick) {
 451       hashindex++;
 452       if(hashindex >= NICKHASHSIZE)
 453         return 0;
 454       lasthashnick = nicktable[hashindex];
 455     } else {
 456       lasthashnick = lasthashnick->next;
 457     }
 458   } while(!lasthashnick);
 459
 460   return lua_usepusher(l, nickhashpusher, lasthashnick);
 461 }
 462
 463 static int lua_getfirstnick(lua_State *l) {
 464   hashindex = -1;
 465   lasthashnick = NULL;
 466
 467   lua_setupnickpusher(l, 1, nickhashpusher, MAX_PUSHER);
 468   geoipext = findnickext("geoip");
 469
 470   return lua_getnextnick(l);
 471 }
 472
 473 int chanhashindex;
 474 chanindex *lasthashchan;
 475
 476 struct lua_pusher *chanhashpusher[MAX_PUSHER];
 477
 478 static int lua_getnextchan(lua_State *l) {
 479   if(!lasthashchan && (chanhashindex != -1))
 480     return 0;
 481
 482   do {
 483     if(!lasthashchan) {
 484       chanhashindex++;
 485       if(chanhashindex >= CHANNELHASHSIZE)
 486         return 0;
 487       lasthashchan = chantable[chanhashindex];
 488     } else {
 489       lasthashchan = lasthashchan->next;
 490     }
 491   } while(!lasthashchan || !lasthashchan->channel);
 492
 493   return lua_usepusher(l, chanhashpusher, lasthashchan);
 494 }
 495
 496 static int lua_getfirstchan(lua_State *l) {
 497   chanhashindex = -1;
 498   lasthashchan = NULL;
 499
 500   lua_setupchanpusher(l, 1, chanhashpusher, MAX_PUSHER);
 501
 502   return lua_getnextchan(l);
 503 }
 504
 505 static int lua_getnickchancount(lua_State *l) {
 506   nick *np;
 507
 508   if(!lua_islong(l, 1))
 509     return 0;
 510
 511   np = getnickbynumeric(lua_tolong(l, 1));
 512   if(!np)
 513     return 0;
 514
 515   lua_pushint(l, np->channels->cursi);
 516
 517   return 1;
 518 }
 519
 520 static int lua_gethostusers(lua_State *l) {
 521   nick *np;
 522   int count;
 523
 524   if(!lua_islong(l, 1))
 525     return 0;
 526
 527   np = getnickbynumeric(lua_tolong(l, 1));
 528   if(!np || !np->host || !np->host->nicks)
 529     return 0;
 530
 531   np = np->host->nicks;
 532   count = np->host->clonecount;
 533
 534   do {
 535     lua_pushnumeric(l, np->numeric);
 536     np = np->nextbyhost;
 537   } while(np);
 538
 539   return count;
 540 }
 541
 542 static int lua_getnickcountry(lua_State *l) {
 543   nick *np;
 544   int ext;
 545
 546   ext = findnickext("geoip");
 547   if(ext == -1)
 548     return 0;
 549
 550   if(!lua_islong(l, 1))
 551     return 0;
 552
 553   np = getnickbynumeric(lua_tolong(l, 1));
 554   if(!np)
 555     return 0;
 556
 557   lua_pushint(l, (long)np->exts[ext]);
 558   return 1;
 559 }
 560
 561 static int lua_chanfix(lua_State *ps) {
 562   channel *cp;
 563   nick *np;
 564
 565   if(!lua_isstring(ps, 1))
 566     LUA_RETURN(ps, LUA_FAIL);
 567
 568   cp = findchannel((char *)lua_tostring(ps, 1));
 569   if(!cp || !cp->index)
 570     LUA_RETURN(ps, LUA_FAIL);
 571
 572   np = getnickbynick(LUA_CHANFIXBOT);
 573   if(!np)
 574     LUA_RETURN(ps, LUA_FAIL);
 575
 576   lua_message(np, "chanfix %s", cp->index->name->content);
 577
 578   LUA_RETURN(ps, LUA_OK);
 579 }
 580
 581 static int lua_clearmode(lua_State *ps) {
 582   channel *cp;
 583   int i;
 584   nick *np;
 585   unsigned long *lp;
 586   modechanges changes;
 587
 588   if(!lua_isstring(ps, 1))
 589     LUA_RETURN(ps, LUA_FAIL);
 590
 591   cp = findchannel((char *)lua_tostring(ps, 1));
 592   if(!cp || !cp->users)
 593     LUA_RETURN(ps, LUA_FAIL);
 594
 595   localsetmodeinit(&changes, cp, lua_nick);
 596
 597   localdosetmode_key(&changes, NULL, MCB_DEL);
 598   localdosetmode_simple(&changes, 0, CHANMODE_INVITEONLY | CHANMODE_LIMIT);
 599
 600   while(cp->bans)
 601     localdosetmode_ban(&changes, bantostring(cp->bans), MCB_DEL);
 602
 603   for(i=0,lp=cp->users->content;i<cp->users->hashsize;i++,lp++)
 604     if((*lp != nouser) && (*lp & CUMODE_OP)) {
 605       np = getnickbynumeric(*lp);
 606       if(np && !IsService(np))
 607         localdosetmode_nick(&changes, np, MC_DEOP);
 608     }
 609
 610   localsetmodeflush(&changes, 1);
 611
 612   LUA_RETURN(ps, LUA_OK);
 613 }
 614
 615 static int lua_ban(lua_State *ps) {
 616   channel *cp;
 617   const char *mask;
 618   modechanges changes;
 619   int dir = MCB_ADD;
 620
 621   if(!lua_isstring(ps, 1) || !lua_isstring(ps, 2))
 622     LUA_RETURN(ps, LUA_FAIL);
 623
 624   if(lua_isboolean(ps, 3) && lua_toboolean(ps, 3))
 625     dir = MCB_DEL;
 626
 627   cp = findchannel((char *)lua_tostring(ps, 1));
 628   if(!cp)
 629     LUA_RETURN(ps, LUA_FAIL);
 630
 631   mask = lua_tostring(ps, 2);
 632   if(!mask || !mask[0] || !lua_lineok(mask))
 633     LUA_RETURN(ps, LUA_FAIL);
 634
 635   localsetmodeinit(&changes, cp, lua_nick);
 636   localdosetmode_ban(&changes, mask, dir);
 637   localsetmodeflush(&changes, 1);
 638
 639   LUA_RETURN(ps, LUA_OK);
 640 }
 641
 642 static int lua_topic(lua_State *ps) {
 643   channel *cp;
 644   char *topic;
 645
 646   if(!lua_isstring(ps, 1) || !lua_isstring(ps, 2))
 647     LUA_RETURN(ps, LUA_FAIL);
 648
 649   cp = findchannel((char *)lua_tostring(ps, 1));
 650   if(!cp)
 651     LUA_RETURN(ps, LUA_FAIL);
 652
 653   topic = (char *)lua_tostring(ps, 2);
 654   if(!topic || !lua_lineok(topic))
 655     LUA_RETURN(ps, LUA_FAIL);
 656
 657   localsettopic(lua_nick, cp, topic);
 658
 659   LUA_RETURN(ps, LUA_OK);
 660 }
 661
 662 static int lua_getuserchanmodes(lua_State *l) {
 663   nick *np;
 664   channel *cp;
 665   unsigned long *lp;
 666
 667   if(!lua_islong(l, 1) || !lua_isstring(l, 2))
 668     return 0;
 669
 670   np = getnickbynumeric(lua_tolong(l, 1));
 671   if(!np)
 672     return 0;
 673
 674   cp = findchannel((char *)lua_tostring(l, 2));
 675   if(!cp || !cp->users)
 676     return 0;
 677
 678   lp = getnumerichandlefromchanhash(cp->users, np->numeric);
 679   if(!lp)
 680     return 0;
 681
 682   LUA_PUSHNICKCHANMODES(l, lp);
 683   return 1;
 684 }
 685
 686 static int lua_getusermodes(lua_State *l) {
 687   nick *np;
 688
 689   if(!lua_islong(l, 1))
 690     return 0;
 691
 692   np = getnickbynumeric(lua_tolong(l, 1));
 693   if(!np)
 694     return 0;
 695
 696   lua_pushstring(l, printflags(np->umodes, umodeflags));
 697   return 1;
 698 }
 699
 700 static int lua_fastgetnickbynumeric(lua_State *l) {
 701   static struct lua_pusher *ourpusher[MAX_PUSHER];
 702   nick *np;
 703
 704   if(!lua_islong(l, 1))
 705     return 0;
 706
 707   np = getnickbynumeric(lua_tolong(l, 1));
 708   if(!np)
 709     return 0;
 710
 711   lua_setupnickpusher(l, 2, ourpusher, MAX_PUSHER);
 712   return lua_usepusher(l, ourpusher, np);
 713 }
 714
 715 static int lua_fastgetnickbynick(lua_State *l) {
 716   static struct lua_pusher *ourpusher[MAX_PUSHER];
 717   nick *np;
 718
 719   if(!lua_isstring(l, 1))
 720     return 0;
 721
 722   np = getnickbynick((char *)lua_tostring(l, 1));
 723   if(!np)
 724     return 0;
 725
 726   lua_setupnickpusher(l, 2, ourpusher, MAX_PUSHER);
 727   return lua_usepusher(l, ourpusher, np);
 728 }
 729
 730 int channelnicklistindex, channelnicklistcount = -1;
 731 channel *channelnicklist;
 732
 733 struct lua_pusher *channelnickpusher[MAX_PUSHER];
 734
 735 static int lua_getnextchannick(lua_State *l) {
 736   nick *np;
 737
 738   do {
 739     channelnicklistindex++;
 740
 741     if(channelnicklistindex >= channelnicklistcount)
 742       return 0;
 743   } while((channelnicklist->users->content[channelnicklistindex] == nouser) || !(np = getnickbynumeric(channelnicklist->users->content[channelnicklistindex])));
 744
 745   return lua_usepusher(l, channelnickpusher, np);
 746 }
 747
 748 static int lua_getfirstchannick(lua_State *l) {
 749   if(!lua_isstring(l, 1))
 750     return 0;
 751
 752   channelnicklist = findchannel((char *)lua_tostring(l, 1));
 753   if(!channelnicklist|| !channelnicklist->users)
 754     return 0;
 755
 756   channelnicklistindex = -1;
 757   channelnicklistcount = channelnicklist->users->hashsize;
 758
 759   lua_setupnickpusher(l, 2, channelnickpusher, MAX_PUSHER);
 760
 761   return lua_getnextchannick(l);
 762 }
 763
 764 static int lua_nickonchan(lua_State *l) {
 765   int success = 0;
 766   if(lua_islong(l, 1) && lua_isstring(l, 2)) {
 767     channel *cp = findchannel((char *)lua_tostring(l, 2));
 768     if(cp && cp->users) {
 769       unsigned long *lp = getnumerichandlefromchanhash(cp->users, lua_tolong(l, 1));
 770       if(lp)
 771         success = 1;
 772     }
 773   }
 774
 775   lua_pushboolean(l, success);
 776   return 1;
 777 }
 778
 779 static int lua_simplechanmode(lua_State *ps) {
 780   channel *cp;
 781   char *modes;
 782   flag_t add = 0, del = ~add;
 783   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 | CHANMODE_MODNOAUTH | CHANMODE_SINGLETARG;
 784   modechanges changes;
 785
 786   if(!lua_isstring(ps, 1) || !lua_isstring(ps, 2))
 787     LUA_RETURN(ps, LUA_FAIL);
 788
 789   cp = findchannel((char *)lua_tostring(ps, 1));
 790   if(!cp)
 791     LUA_RETURN(ps, LUA_FAIL);
 792
 793   modes = (char *)lua_tostring(ps, 2);
 794   if(!modes)
 795     LUA_RETURN(ps, LUA_FAIL);
 796
 797   if(setflags(&add, permitted, modes, cmodeflags, REJECT_DISALLOWED|REJECT_UNKNOWN) != REJECT_NONE)
 798     LUA_RETURN(ps, LUA_FAIL);
 799
 800   if(setflags(&del, permitted, modes, cmodeflags, REJECT_DISALLOWED|REJECT_UNKNOWN) != REJECT_NONE)
 801     LUA_RETURN(ps, LUA_FAIL);
 802
 803   localsetmodeinit(&changes, cp, lua_nick);
 804   localdosetmode_simple(&changes, add, ~del);
 805   localsetmodeflush(&changes, 1);
 806
 807   LUA_RETURN(ps, LUA_OK);
 808 }
 809
 810 static int lua_sethost(lua_State *ps) {
 811   char *ident, *host;
 812   nick *np;
 813
 814   if(!lua_islong(ps, 1) || !lua_isstring(ps, 2) || !lua_isstring(ps, 3))
 815     LUA_RETURN(ps, LUA_FAIL);
 816
 817   np = getnickbynumeric(lua_tolong(ps, 1));
 818   if(!np)
 819     LUA_RETURN(ps, LUA_FAIL);
 820
 821   ident = (char *)lua_tostring(ps, 2);
 822   host = (char *)lua_tostring(ps, 3);
 823   if(!lua_lineok(ident) || !lua_lineok(host))
 824     LUA_RETURN(ps, LUA_FAIL);
 825
 826   sethostuser(np, ident, host);
 827
 828   LUA_RETURN(ps, LUA_OK);
 829 }
 830
 831 static int lua_getvisiblehostmask(lua_State *l) {
 832   nick *np;
 833   char buf[HOSTLEN+USERLEN+NICKLEN+REALLEN+10];
 834
 835   if(!lua_islong(l, 1))
 836     return 0;
 837
 838   np = getnickbynumeric(lua_tolong(l, 1));
 839   if(!np)
 840     return 0;
 841
 842   lua_pushstring(l, visiblehostmask(np, buf));
 843   return 1;
 844 }
 845
 846 void lua_registercommands(lua_State *l) {
 847   lua_register(l, "irc_smsg", lua_smsg);
 848   lua_register(l, "irc_skill", lua_skill);
 849
 850   lua_register(l, "chanmsg", lua_chanmsg);
 851   lua_register(l, "versioninfo", lua_versioninfo);
 852   lua_register(l, "basepath", lua_basepath);
 853   lua_register(l, "botnick", lua_botnick);
 854
 855   lua_register(l, "irc_report", lua_chanmsg);
 856   lua_register(l, "irc_ctcp", lua_ctcp);
 857   lua_register(l, "irc_kill", lua_kill);
 858   lua_register(l, "irc_kick", lua_kick);
 859   lua_register(l, "irc_invite", lua_invite);
 860   lua_register(l, "irc_gline", lua_gline);
 861   lua_register(l, "irc_counthost", lua_counthost);
 862   lua_register(l, "irc_getuserbyauth", lua_getuserbyauth);
 863   lua_register(l, "irc_notice", lua_noticecmd);
 864   lua_register(l, "irc_privmsg", lua_privmsgcmd);
 865   lua_register(l, "irc_opchan", lua_opchan);
 866   lua_register(l, "irc_voicechan", lua_voicechan);
 867   lua_register(l, "irc_chanfix", lua_chanfix);
 868   lua_register(l, "irc_clearmode", lua_clearmode);
 869   lua_register(l, "irc_ban", lua_ban);
 870   lua_register(l, "irc_deopchan", lua_deopchan);
 871   lua_register(l, "irc_topic", lua_topic);
 872
 873   lua_register(l, "irc_getfirstnick", lua_getfirstnick);
 874   lua_register(l, "irc_getnextnick", lua_getnextnick);
 875
 876   lua_register(l, "irc_getnickchans", lua_getnickchans);
 877   lua_register(l, "irc_getnickchanindex", lua_getnickchanindex);
 878   lua_register(l, "irc_getnickchancount", lua_getnickchancount);
 879
 880   lua_register(l, "irc_getuserchanmodes", lua_getuserchanmodes);
 881
 882   lua_register(l, "irc_getfirstchannick", lua_getfirstchannick);
 883   lua_register(l, "irc_getnextchannick", lua_getnextchannick);
 884
 885   lua_register(l, "irc_gethostusers", lua_gethostusers);
 886   lua_register(l, "irc_getnickcountry", lua_getnickcountry);
 887
 888   lua_register(l, "irc_getfirstchan", lua_getfirstchan);
 889   lua_register(l, "irc_getnextchan", lua_getnextchan);
 890   lua_register(l, "irc_getusermodes", lua_getusermodes);
 891   lua_register(l, "irc_nickonchan", lua_nickonchan);
 892
 893   lua_register(l, "irc_fastgetnickbynumeric", lua_fastgetnickbynumeric);
 894   lua_register(l, "irc_fastgetnickbynick", lua_fastgetnickbynick);
 895   lua_register(l, "irc_fastgetchaninfo", lua_fastgetchaninfo);
 896
 897   lua_register(l, "irc_getvisiblehostmask", lua_getvisiblehostmask);
 898
 899   lua_register(l, "irc_simplechanmode", lua_simplechanmode);
 900   lua_register(l, "irc_sethost", lua_sethost);
 901 }
 902
 903 /* --- */
 904
 905 static int lua_smsg(lua_State *ps) {
 906   if(!lua_isstring(ps, 1) || !lua_isstring(ps, 2))
 907     LUA_RETURN(ps, LUA_FAIL);
 908
 909   LUA_RETURN(ps, lua_cmsg((char *)lua_tostring(ps, 2), "%s", lua_tostring(ps, 1)));
 910 }
 911
 912 static int lua_skill(lua_State *ps) {
 913   const char *n, *msg;
 914   nick *np;
 915
 916   if(!lua_isstring(ps, 1) || !lua_isstring(ps, 2))
 917     LUA_RETURN(ps, LUA_FAIL);
 918
 919   n = lua_tostring(ps, 1);
 920   msg = lua_tostring(ps, 2);
 921
 922   np = getnickbynick(n);
 923   if(!np)
 924     LUA_RETURN(ps, LUA_FAIL);
 925
 926   if(IsOper(np) || IsService(np) || IsXOper(np))
 927     LUA_RETURN(ps, LUA_FAIL);
 928
 929   if(!lua_lineok(msg))
 930     LUA_RETURN(ps, LUA_FAIL);
 931
 932   killuser(lua_nick, np, "%s", msg);
 933
 934   LUA_RETURN(ps, LUA_OK);
 935 }
 936
 937 #define PUSHER_STRING 1
 938 #define PUSHER_REALNAME 2
 939 #define PUSHER_IP 3
 940 #define PUSHER_LONG 4
 941 #define PUSHER_HOSTNAME 5
 942 #define PUSHER_SSTRING 6
 943 #define PUSHER_TOTALUSERS 7
 944 #define PUSHER_TOPIC 8
 945 #define PUSHER_UMODES 9
 946 #define PUSHER_COUNTRY 10
 947 #define PUSHER_REALUSERS 11
 948 #define PUSHER_CHANMODES 12
 949 #define PUSHER_TIMESTAMP 13
 950 #define PUSHER_STRING_INDIRECT 14
 951
 952 void lua_initnickpusher(void) {
 953   int i = 0;
 954
 955 #define PUSH_NICKPUSHER(F2, O2) nickpusher[i].argtype = F2; nickpusher[i].structname = #O2; nickpusher[i].offset = offsetof(nick, O2); i++;
 956 #define PUSH_NICKPUSHER_CUSTOM(F2, custom) nickpusher[i].argtype = F2; nickpusher[i].structname = custom; nickpusher[i].offset = 0; i++;
 957
 958   PUSH_NICKPUSHER(PUSHER_STRING, nick);
 959   PUSH_NICKPUSHER(PUSHER_STRING, ident);
 960   PUSH_NICKPUSHER(PUSHER_HOSTNAME, host);
 961   PUSH_NICKPUSHER(PUSHER_REALNAME, realname);
 962   PUSH_NICKPUSHER(PUSHER_STRING_INDIRECT, authname);
 963   PUSH_NICKPUSHER(PUSHER_IP, ipnode);
 964   PUSH_NICKPUSHER(PUSHER_LONG, numeric);
 965   PUSH_NICKPUSHER(PUSHER_LONG, timestamp);
 966   PUSH_NICKPUSHER(PUSHER_LONG, accountts);
 967   PUSH_NICKPUSHER(PUSHER_UMODES, umodes);
 968   PUSH_NICKPUSHER_CUSTOM(PUSHER_COUNTRY, "country");
 969
 970   nickpushercount = i;
 971   nickpusher[i].argtype = 0;
 972 }
 973
 974 void lua_setuppusher(struct lua_pusher *pusherlist, lua_State *l, int index, struct lua_pusher **lp, int max, int pcount) {
 975   int current = 0;
 976
 977   if(max > 0)
 978     lp[0] = NULL;
 979
 980   if(!lua_istable(l, index) || (max < 2))
 981     return;
 982
 983   lua_pushnil(l);
 984
 985   max--;
 986
 987   while(lua_next(l, index)) {
 988     if(lua_isint(l, -1)) {
 989       int index = lua_toint(l, -1);
 990       if((index >= 0) && (index < pcount))
 991         lp[current++] = &pusherlist[index];
 992     }
 993
 994     lua_pop(l, 1);
 995
 996     if(current == max)
 997       break;
 998   }
 999
1000   lp[current] = NULL;
1001 }
1002
1003 int lua_usepusher(lua_State *l, struct lua_pusher **lp, void *np) {
1004   int i = 0;
1005
1006   while(*lp) {
1007     void *offset = (void *)np + (*lp)->offset;
1008
1009     switch((*lp)->argtype) {
1010       case PUSHER_STRING:
1011         lua_pushstring(l, (char *)offset);
1012         break;
1013       case PUSHER_STRING_INDIRECT:
1014         lua_pushstring(l, *(char **)offset);
1015         break;
1016       case PUSHER_HOSTNAME:
1017         lua_pushstring(l, (*(host **)offset)->name->content);
1018         break;
1019       case PUSHER_REALNAME:
1020         lua_pushstring(l, (*(realname **)offset)->name->content);
1021         break;
1022       case PUSHER_SSTRING:
1023         lua_pushstring(l, (*((sstring **)offset))->content);
1024         break;
1025       case PUSHER_LONG:
1026         lua_pushlong(l, *((long *)offset));
1027         break;
1028       case PUSHER_TIMESTAMP:
1029         lua_pushlong(l, (*((channel **)offset))->timestamp);
1030         break;
1031       case PUSHER_IP:
1032         lua_pushstring(l, IPtostr((*((patricia_node_t **)offset))->prefix->sin));
1033         break;
1034       case PUSHER_TOTALUSERS:
1035         lua_pushint(l, (*((channel **)offset))->users->totalusers);
1036         break;
1037       case PUSHER_CHANMODES:
1038         lua_pushstring(l, printallmodes(*((channel **)offset)));
1039         break;
1040       case PUSHER_REALUSERS:
1041         {
1042           channel *cp = *((channel **)offset);
1043           nick *np2;
1044           int i, currentusers = countuniquehosts(cp);
1045           for(i=0;i<cp->users->hashsize;i++) {
1046             if(cp->users->content[i]==nouser)
1047               continue;
1048
1049             if((np2=getnickbynumeric(cp->users->content[i]))==NULL) {
1050               Error("lua", ERR_ERROR, "Found unknown numeric %lu on channel %s", cp->users->content[i], cp->index->name->content);
1051               continue;
1052             }
1053
1054             if (IsXOper(np2) || IsService(np2))
1055               currentusers--;
1056           }
1057           lua_pushint(l, currentusers);
1058         }
1059         break;
1060       case PUSHER_UMODES:
1061         lua_pushstring(l, printflags(*((flag_t *)offset), umodeflags));
1062         break;
1063       case PUSHER_TOPIC:
1064         if((*((channel **)offset))->topic) {
1065           lua_pushstring(l, (*((channel **)offset))->topic->content);
1066         } else {
1067           lua_pushnil(l);
1068         }
1069         break;
1070       case PUSHER_COUNTRY:
1071         if(geoipext < 0) {
1072           lua_pushint(l, -1);
1073         } else {
1074           lua_pushint(l, (long)((nick *)offset)->exts[geoipext]);
1075         }
1076         break;
1077     }
1078
1079     i++;
1080     lp++;
1081   }
1082
1083   return i;
1084 }
1085
1086 void lua_initchanpusher(void) {
1087   int i = 0;
1088
1089 #define PUSH_CHANPUSHER(F2, O2, N2) chanpusher[i].argtype = F2; chanpusher[i].structname = N2; chanpusher[i].offset = offsetof(chanindex, O2); i++;
1090
1091   PUSH_CHANPUSHER(PUSHER_SSTRING, name, "name");
1092   PUSH_CHANPUSHER(PUSHER_TOTALUSERS, channel, "totalusers");
1093   PUSH_CHANPUSHER(PUSHER_TOPIC, channel, "topic");
1094   PUSH_CHANPUSHER(PUSHER_REALUSERS, channel, "realusers");
1095   PUSH_CHANPUSHER(PUSHER_TIMESTAMP, channel, "timestamp");
1096   PUSH_CHANPUSHER(PUSHER_CHANMODES, channel, "modes");
1097
1098   chanpushercount = i;
1099   chanpusher[i].argtype = 0;
1100 }