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
 436 struct lua_pusher *nickhashpusher[MAX_PUSHER];
 437
 438 static int lua_getnextnick(lua_State *l) {
 439   if(!lasthashnick && (hashindex != -1))
 440     return 0;
 441
 442   do {
 443     if(!lasthashnick) {
 444       hashindex++;
 445       if(hashindex >= NICKHASHSIZE)
 446         return 0;
 447       lasthashnick = nicktable[hashindex];
 448     } else {
 449       lasthashnick = lasthashnick->next;
 450     }
 451   } while(!lasthashnick);
 452
 453   return lua_usepusher(l, nickhashpusher, lasthashnick);
 454 }
 455
 456 static int lua_getfirstnick(lua_State *l) {
 457   hashindex = -1;
 458   lasthashnick = NULL;
 459
 460   lua_setupnickpusher(l, 1, nickhashpusher, MAX_PUSHER);
 461
 462   return lua_getnextnick(l);
 463 }
 464
 465 int chanhashindex;
 466 chanindex *lasthashchan;
 467
 468 struct lua_pusher *chanhashpusher[MAX_PUSHER];
 469
 470 static int lua_getnextchan(lua_State *l) {
 471   if(!lasthashchan && (chanhashindex != -1))
 472     return 0;
 473
 474   do {
 475     if(!lasthashchan) {
 476       chanhashindex++;
 477       if(chanhashindex >= CHANNELHASHSIZE)
 478         return 0;
 479       lasthashchan = chantable[chanhashindex];
 480     } else {
 481       lasthashchan = lasthashchan->next;
 482     }
 483   } while(!lasthashchan || !lasthashchan->channel);
 484
 485   return lua_usepusher(l, chanhashpusher, lasthashchan);
 486 }
 487
 488 static int lua_getfirstchan(lua_State *l) {
 489   chanhashindex = -1;
 490   lasthashchan = NULL;
 491
 492   lua_setupchanpusher(l, 1, chanhashpusher, MAX_PUSHER);
 493
 494   return lua_getnextchan(l);
 495 }
 496
 497 static int lua_getnickchancount(lua_State *l) {
 498   nick *np;
 499
 500   if(!lua_islong(l, 1))
 501     return 0;
 502
 503   np = getnickbynumeric(lua_tolong(l, 1));
 504   if(!np)
 505     return 0;
 506
 507   lua_pushint(l, np->channels->cursi);
 508
 509   return 1;
 510 }
 511
 512 static int lua_gethostusers(lua_State *l) {
 513   nick *np;
 514   int count;
 515
 516   if(!lua_islong(l, 1))
 517     return 0;
 518
 519   np = getnickbynumeric(lua_tolong(l, 1));
 520   if(!np || !np->host || !np->host->nicks)
 521     return 0;
 522
 523   np = np->host->nicks;
 524   count = np->host->clonecount;
 525
 526   do {
 527     LUA_PUSHNICK(l, np);
 528     np = np->nextbyhost;
 529   } while(np);
 530
 531   return count;
 532 }
 533
 534 static int lua_getnickcountry(lua_State *l) {
 535   nick *np;
 536   int ext;
 537
 538   ext = findnickext("geoip");
 539   if(ext == -1)
 540     return 0;
 541
 542   if(!lua_islong(l, 1))
 543     return 0;
 544
 545   np = getnickbynumeric(lua_tolong(l, 1));
 546   if(!np)
 547     return 0;
 548
 549   lua_pushint(l, (long)np->exts[ext]);
 550   return 1;
 551 }
 552
 553 static int lua_chanfix(lua_State *ps) {
 554   channel *cp;
 555   nick *np;
 556
 557   if(!lua_isstring(ps, 1))
 558     LUA_RETURN(ps, LUA_FAIL);
 559
 560   cp = findchannel((char *)lua_tostring(ps, 1));
 561   if(!cp || !cp->index)
 562     LUA_RETURN(ps, LUA_FAIL);
 563
 564   np = getnickbynick(LUA_CHANFIXBOT);
 565   if(!np)
 566     LUA_RETURN(ps, LUA_FAIL);
 567
 568   lua_message(np, "chanfix %s", cp->index->name->content);
 569
 570   LUA_RETURN(ps, LUA_OK);
 571 }
 572
 573 static int lua_clearmode(lua_State *ps) {
 574   channel *cp;
 575   int i;
 576   nick *np;
 577   unsigned long *lp;
 578   modechanges changes;
 579
 580   if(!lua_isstring(ps, 1))
 581     LUA_RETURN(ps, LUA_FAIL);
 582
 583   cp = findchannel((char *)lua_tostring(ps, 1));
 584   if(!cp || !cp->users)
 585     LUA_RETURN(ps, LUA_FAIL);
 586
 587   localsetmodeinit(&changes, cp, lua_nick);
 588
 589   localdosetmode_key(&changes, NULL, MCB_DEL);
 590   localdosetmode_simple(&changes, 0, CHANMODE_INVITEONLY | CHANMODE_LIMIT);
 591
 592   while(cp->bans)
 593     localdosetmode_ban(&changes, bantostring(cp->bans), MCB_DEL);
 594
 595   for(i=0,lp=cp->users->content;i<cp->users->hashsize;i++,lp++)
 596     if((*lp != nouser) && (*lp & CUMODE_OP)) {
 597       np = getnickbynumeric(*lp);
 598       if(np && !IsService(np))
 599         localdosetmode_nick(&changes, np, MC_DEOP);
 600     }
 601
 602   localsetmodeflush(&changes, 1);
 603
 604   LUA_RETURN(ps, LUA_OK);
 605 }
 606
 607 static int lua_ban(lua_State *ps) {
 608   channel *cp;
 609   const char *mask;
 610   modechanges changes;
 611   int dir = MCB_ADD;
 612
 613   if(!lua_isstring(ps, 1) || !lua_isstring(ps, 2))
 614     LUA_RETURN(ps, LUA_FAIL);
 615
 616   if(lua_isboolean(ps, 3) && lua_toboolean(ps, 3))
 617     dir = MCB_DEL;
 618
 619   cp = findchannel((char *)lua_tostring(ps, 1));
 620   if(!cp)
 621     LUA_RETURN(ps, LUA_FAIL);
 622
 623   mask = lua_tostring(ps, 2);
 624   if(!mask || !mask[0] || !lua_lineok(mask))
 625     LUA_RETURN(ps, LUA_FAIL);
 626
 627   localsetmodeinit(&changes, cp, lua_nick);
 628   localdosetmode_ban(&changes, mask, dir);
 629   localsetmodeflush(&changes, 1);
 630
 631   LUA_RETURN(ps, LUA_OK);
 632 }
 633
 634 static int lua_topic(lua_State *ps) {
 635   channel *cp;
 636   char *topic;
 637
 638   if(!lua_isstring(ps, 1) || !lua_isstring(ps, 2))
 639     LUA_RETURN(ps, LUA_FAIL);
 640
 641   cp = findchannel((char *)lua_tostring(ps, 1));
 642   if(!cp)
 643     LUA_RETURN(ps, LUA_FAIL);
 644
 645   topic = (char *)lua_tostring(ps, 2);
 646   if(!topic || !lua_lineok(topic))
 647     LUA_RETURN(ps, LUA_FAIL);
 648
 649   localsettopic(lua_nick, cp, topic);
 650
 651   LUA_RETURN(ps, LUA_OK);
 652 }
 653
 654 static int lua_getuserchanmodes(lua_State *l) {
 655   nick *np;
 656   channel *cp;
 657   unsigned long *lp;
 658
 659   if(!lua_islong(l, 1) || !lua_isstring(l, 2))
 660     return 0;
 661
 662   np = getnickbynumeric(lua_tolong(l, 1));
 663   if(!np)
 664     return 0;
 665
 666   cp = findchannel((char *)lua_tostring(l, 2));
 667   if(!cp || !cp->users)
 668     return 0;
 669
 670   lp = getnumerichandlefromchanhash(cp->users, np->numeric);
 671   if(!lp)
 672     return 0;
 673
 674   LUA_PUSHNICKCHANMODES(l, lp);
 675   return 1;
 676 }
 677
 678 static int lua_getusermodes(lua_State *l) {
 679   nick *np;
 680
 681   if(!lua_islong(l, 1))
 682     return 0;
 683
 684   np = getnickbynumeric(lua_tolong(l, 1));
 685   if(!np)
 686     return 0;
 687
 688   lua_pushstring(l, printflags(np->umodes, umodeflags));
 689   return 1;
 690 }
 691
 692 static int lua_getnickbynick(lua_State *l) {
 693   nick *np;
 694
 695   if(!lua_isstring(l, 1))
 696     return 0;
 697
 698   np = getnickbynick(lua_tostring(l, 1));
 699   if(!np)
 700     return 0;
 701
 702   LUA_PUSHNICK(l, np);
 703   return 1;
 704 }
 705
 706 static int lua_getnickbynumeric(lua_State *l) {
 707   nick *np;
 708
 709   if(!lua_islong(l, 1))
 710     return 0;
 711
 712   np = getnickbynumeric(lua_tolong(l, 1));
 713   if(!np)
 714     return 0;
 715
 716   LUA_PUSHNICK(l, np);
 717   return 1;
 718 }
 719
 720 static int lua_fastgetnickbynumeric(lua_State *l) {
 721   static struct lua_pusher *ourpusher[MAX_PUSHER];
 722   nick *np;
 723
 724   if(!lua_islong(l, 1))
 725     return 0;
 726
 727   np = getnickbynumeric(lua_tolong(l, 1));
 728   if(!np)
 729     return 0;
 730
 731   lua_setupnickpusher(l, 2, ourpusher, MAX_PUSHER);
 732   return lua_usepusher(l, ourpusher, np);
 733 }
 734
 735 int channelnicklistindex, channelnicklistcount = -1;
 736 channel *channelnicklist;
 737
 738 struct lua_pusher *channelnickpusher[MAX_PUSHER];
 739
 740 static int lua_getnextchannick(lua_State *l) {
 741   nick *np;
 742
 743   do {
 744     channelnicklistindex++;
 745
 746     if(channelnicklistindex >= channelnicklistcount)
 747       return 0;
 748   } while((channelnicklist->users->content[channelnicklistindex] == nouser) || !(np = getnickbynumeric(channelnicklist->users->content[channelnicklistindex])));
 749
 750   return lua_usepusher(l, channelnickpusher, np);
 751 }
 752
 753 static int lua_getfirstchannick(lua_State *l) {
 754   if(!lua_isstring(l, 1))
 755     return 0;
 756
 757   channelnicklist = findchannel((char *)lua_tostring(l, 1));
 758   if(!channelnicklist|| !channelnicklist->users)
 759     return 0;
 760
 761   channelnicklistindex = -1;
 762   channelnicklistcount = channelnicklist->users->hashsize;
 763
 764   lua_setupnickpusher(l, 2, channelnickpusher, MAX_PUSHER);
 765
 766   return lua_getnextchannick(l);
 767 }
 768
 769 static int lua_nickonchan(lua_State *l) {
 770   int success = 0;
 771   if(lua_islong(l, 1) && lua_isstring(l, 2)) {
 772     channel *cp = findchannel((char *)lua_tostring(l, 2));
 773     if(cp && cp->users) {
 774       unsigned long *lp = getnumerichandlefromchanhash(cp->users, lua_tolong(l, 1));
 775       if(lp)
 776         success = 1;
 777     }
 778   }
 779
 780   lua_pushboolean(l, success);
 781   return 1;
 782 }
 783
 784 static int lua_simplechanmode(lua_State *ps) {
 785   channel *cp;
 786   char *modes;
 787   flag_t add = 0, del = ~add;
 788   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;
 789   modechanges changes;
 790
 791   if(!lua_isstring(ps, 1) || !lua_isstring(ps, 2))
 792     LUA_RETURN(ps, LUA_FAIL);
 793
 794   cp = findchannel((char *)lua_tostring(ps, 1));
 795   if(!cp)
 796     LUA_RETURN(ps, LUA_FAIL);
 797
 798   modes = (char *)lua_tostring(ps, 2);
 799   if(!modes)
 800     LUA_RETURN(ps, LUA_FAIL);
 801
 802   if(setflags(&add, permitted, modes, cmodeflags, REJECT_DISALLOWED|REJECT_UNKNOWN) != REJECT_NONE)
 803     LUA_RETURN(ps, LUA_FAIL);
 804
 805   if(setflags(&del, permitted, modes, cmodeflags, REJECT_DISALLOWED|REJECT_UNKNOWN) != REJECT_NONE)
 806     LUA_RETURN(ps, LUA_FAIL);
 807
 808   localsetmodeinit(&changes, cp, lua_nick);
 809   localdosetmode_simple(&changes, add, ~del);
 810   localsetmodeflush(&changes, 1);
 811
 812   LUA_RETURN(ps, LUA_OK);
 813 }
 814
 815 void lua_registercommands(lua_State *l) {
 816   lua_register(l, "irc_smsg", lua_smsg);
 817   lua_register(l, "irc_skill", lua_skill);
 818
 819   lua_register(l, "chanmsg", lua_chanmsg);
 820   lua_register(l, "versioninfo", lua_versioninfo);
 821   lua_register(l, "basepath", lua_basepath);
 822
 823   lua_register(l, "irc_report", lua_chanmsg);
 824   lua_register(l, "irc_ctcp", lua_ctcp);
 825   lua_register(l, "irc_kill", lua_kill);
 826   lua_register(l, "irc_kick", lua_kick);
 827   lua_register(l, "irc_invite", lua_invite);
 828   lua_register(l, "irc_gline", lua_gline);
 829   lua_register(l, "irc_getchaninfo", lua_getchaninfo);
 830   lua_register(l, "irc_counthost", lua_counthost);
 831   lua_register(l, "irc_getuserbyauth", lua_getuserbyauth);
 832   lua_register(l, "irc_notice", lua_noticecmd);
 833   lua_register(l, "irc_privmsg", lua_privmsgcmd);
 834   lua_register(l, "irc_opchan", lua_opchan);
 835   lua_register(l, "irc_voicechan", lua_voicechan);
 836   lua_register(l, "irc_chanfix", lua_chanfix);
 837   lua_register(l, "irc_clearmode", lua_clearmode);
 838   lua_register(l, "irc_ban", lua_ban);
 839   lua_register(l, "irc_deopchan", lua_deopchan);
 840   lua_register(l, "irc_topic", lua_topic);
 841
 842   lua_register(l, "irc_getnickbynick", lua_getnickbynick);
 843   lua_register(l, "irc_getnickbynumeric", lua_getnickbynumeric);
 844   lua_register(l, "irc_getfirstnick", lua_getfirstnick);
 845   lua_register(l, "irc_getnextnick", lua_getnextnick);
 846
 847   lua_register(l, "irc_getnickchans", lua_getnickchans);
 848   lua_register(l, "irc_getnickchanindex", lua_getnickchanindex);
 849   lua_register(l, "irc_getnickchancount", lua_getnickchancount);
 850
 851   lua_register(l, "irc_getuserchanmodes", lua_getuserchanmodes);
 852
 853   lua_register(l, "irc_getfirstchannick", lua_getfirstchannick);
 854   lua_register(l, "irc_getnextchannick", lua_getnextchannick);
 855
 856   lua_register(l, "irc_gethostusers", lua_gethostusers);
 857   lua_register(l, "irc_getnickcountry", lua_getnickcountry);
 858
 859   lua_register(l, "irc_getfirstchan", lua_getfirstchan);
 860   lua_register(l, "irc_getnextchan", lua_getnextchan);
 861   lua_register(l, "irc_getusermodes", lua_getusermodes);
 862   lua_register(l, "irc_nickonchan", lua_nickonchan);
 863
 864   lua_register(l, "irc_fastgetnickbynumeric", lua_fastgetnickbynumeric);
 865
 866   lua_register(l, "irc_simplechanmode", lua_simplechanmode);
 867 }
 868
 869 /* --- */
 870
 871 static int lua_smsg(lua_State *ps) {
 872   if(!lua_isstring(ps, 1) || !lua_isstring(ps, 2))
 873     LUA_RETURN(ps, LUA_FAIL);
 874
 875   LUA_RETURN(ps, lua_cmsg((char *)lua_tostring(ps, 2), "%s", lua_tostring(ps, 1)));
 876 }
 877
 878 static int lua_skill(lua_State *ps) {
 879   const char *n, *msg;
 880   nick *np;
 881
 882   if(!lua_isstring(ps, 1) || !lua_isstring(ps, 2))
 883     LUA_RETURN(ps, LUA_FAIL);
 884
 885   n = lua_tostring(ps, 1);
 886   msg = lua_tostring(ps, 2);
 887
 888   np = getnickbynick(n);
 889   if(!np)
 890     LUA_RETURN(ps, LUA_FAIL);
 891
 892   if(IsOper(np) || IsService(np) || IsXOper(np))
 893     LUA_RETURN(ps, LUA_FAIL);
 894
 895   if(!lua_lineok(msg))
 896     LUA_RETURN(ps, LUA_FAIL);
 897
 898   killuser(lua_nick, np, "%s", msg);
 899
 900   LUA_RETURN(ps, LUA_OK);
 901 }
 902
 903 #define PUSHER_STRING 1
 904 #define PUSHER_REALNAME 2
 905 #define PUSHER_IP 3
 906 #define PUSHER_LONG 4
 907 #define PUSHER_HOSTNAME 5
 908 #define PUSHER_SSTRING 6
 909 #define PUSHER_TOTALUSERS 7
 910 #define PUSHER_TOPIC 8
 911
 912 void lua_initnickpusher(void) {
 913   int i = 0;
 914
 915 #define PUSH_NICKPUSHER(F2, O2) nickpusher[i].argtype = F2; nickpusher[i].structname = #O2; nickpusher[i].offset = offsetof(nick, O2); i++;
 916
 917   PUSH_NICKPUSHER(PUSHER_STRING, nick);
 918   PUSH_NICKPUSHER(PUSHER_STRING, ident);
 919   PUSH_NICKPUSHER(PUSHER_HOSTNAME, host);
 920   PUSH_NICKPUSHER(PUSHER_REALNAME, realname);
 921   PUSH_NICKPUSHER(PUSHER_STRING, authname);
 922   PUSH_NICKPUSHER(PUSHER_IP, ipnode);
 923   PUSH_NICKPUSHER(PUSHER_LONG, numeric);
 924
 925   nickpushercount = i;
 926   nickpusher[i].argtype = 0;
 927 }
 928
 929 INLINE void lua_setuppusher(struct lua_pusher *pusherlist, lua_State *l, int index, struct lua_pusher **lp, int max, int pcount) {
 930   int current = 0;
 931
 932   if(max > 0)
 933     lp[0] = NULL;
 934
 935   if(!lua_istable(l, index) || (max < 2))
 936     return;
 937
 938   lua_pushnil(l);
 939
 940   max--;
 941
 942   while(lua_next(l, index)) {
 943     if(lua_isint(l, -1)) {
 944       int index = lua_toint(l, -1);
 945       if((index >= 0) && (index < pcount))
 946         lp[current++] = &pusherlist[index];
 947     }
 948
 949     lua_pop(l, 1);
 950
 951     if(current == max)
 952       break;
 953   }
 954
 955   lp[current] = NULL;
 956 }
 957
 958 INLINE int lua_usepusher(lua_State *l, struct lua_pusher **lp, void *np) {
 959   int i = 0;
 960
 961   while(*lp) {
 962     void *offset = (void *)np + (*lp)->offset;
 963
 964     switch((*lp)->argtype) {
 965       case PUSHER_STRING:
 966         lua_pushstring(l, (char *)offset);
 967         break;
 968       case PUSHER_HOSTNAME:
 969         lua_pushstring(l, (*(host **)offset)->name->content);
 970         break;
 971       case PUSHER_REALNAME:
 972         lua_pushstring(l, (*(realname **)offset)->name->content);
 973         break;
 974       case PUSHER_SSTRING:
 975         lua_pushstring(l, (*((sstring **)offset))->content);
 976         break;
 977       case PUSHER_LONG:
 978         lua_pushlong(l, *((long *)offset));
 979         break;
 980       case PUSHER_IP:
 981         lua_pushstring(l, IPtostr((((patricia_node_t *)offset)->prefix->sin)));
 982         break;
 983       case PUSHER_TOTALUSERS:
 984         lua_pushint(l, (*((channel **)offset))->users->totalusers);
 985         break;
 986       case PUSHER_TOPIC:
 987         if((*((channel **)offset))->topic) {
 988           lua_pushstring(l, (*((channel **)offset))->topic->content);
 989         } else {
 990           lua_pushnil(l);
 991         }
 992         break;
 993     }
 994
 995     i++;
 996     lp++;
 997   }
 998
 999   return i;
1000 }
1001
1002 void lua_initchanpusher(void) {
1003   int i = 0;
1004
1005 #define PUSH_CHANPUSHER(F2, O2, N2) chanpusher[i].argtype = F2; chanpusher[i].structname = N2; chanpusher[i].offset = offsetof(chanindex, O2); i++;
1006
1007   PUSH_CHANPUSHER(PUSHER_SSTRING, name, "name");
1008   PUSH_CHANPUSHER(PUSHER_TOTALUSERS, channel, "totalusers");
1009   PUSH_CHANPUSHER(PUSHER_TOPIC, channel, "topic");
1010
1011   chanpushercount = i;
1012   chanpusher[i].argtype = 0;
1013 }