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 #include "../glines/glines.h"
  21 #include "../trusts/trusts.h"
  22 #include "../bans/bans.h"
  23 #include "../core/modules.h"
  24
  25 #include "lua.h"
  26 #include "luabot.h"
  27
  28 #include <stdarg.h>
  29 #include <stddef.h>
  30
  31 #define MAX_PUSHER 50
  32
  33 static int lua_smsg(lua_State *ps);
  34 static int lua_skill(lua_State *ps);
  35
  36 typedef struct lua_pusher {
  37   short argtype;
  38   short offset;
  39   const char *structname;
  40 } lua_pusher;
  41
  42 struct lua_pusher nickpusher[MAX_PUSHER];
  43 struct lua_pusher chanpusher[MAX_PUSHER];
  44 int nickpushercount, chanpushercount;
  45
  46 void lua_setuppusher(struct lua_pusher *pusherlist, lua_State *l, int index, struct lua_pusher **lp, int max, int pcount);
  47 int lua_usepusher(lua_State *l, struct lua_pusher **lp, void *np);
  48
  49 void lua_initnickpusher(void);
  50 void lua_initchanpusher(void);
  51
  52 #define lua_setupnickpusher(L2, I2, P2, M2) lua_setuppusher(&nickpusher[0], L2, I2, P2, M2, nickpushercount)
  53 #define lua_setupchanpusher(L2, I2, P2, M2) lua_setuppusher(&chanpusher[0], L2, I2, P2, M2, chanpushercount)
  54
  55 int lua_cmsg(char *channell, char *message, ...) __attribute__ ((format (printf, 2, 3)));
  56
  57 int lua_cmsg(char *channell, char *message, ...) {
  58   char buf[512];
  59   va_list va;
  60   channel *cp;
  61
  62   va_start(va, message);
  63   vsnprintf(buf, sizeof(buf), message, va);
  64   va_end(va);
  65
  66   cp = findchannel(channell);
  67   if(!cp)
  68     return LUA_FAIL;
  69
  70   if(!lua_lineok(buf))
  71     return LUA_FAIL;
  72
  73   lua_channelmessage(cp, "%s", buf);
  74
  75   return LUA_OK;
  76 }
  77
  78 static int lua_chanmsg(lua_State *ps) {
  79   if(!lua_isstring(ps, 1))
  80     LUA_RETURN(ps, LUA_FAIL);
  81
  82   LUA_RETURN(ps, lua_cmsg(LUA_PUKECHAN, "lua: %s", lua_tostring(ps, 1)));
  83 }
  84
  85 static int lua_ctcp(lua_State *ps) {
  86   const char *n, *msg;
  87   nick *np;
  88
  89   if(!lua_isstring(ps, 1) || !lua_isstring(ps, 2))
  90     LUA_RETURN(ps, LUA_FAIL);
  91
  92   n = lua_tostring(ps, 1);
  93   msg = lua_tostring(ps, 2);
  94
  95   np = getnickbynick(n);
  96   if(!np || !lua_lineok(msg))
  97     LUA_RETURN(ps, LUA_FAIL);
  98
  99   lua_message(np, "\001%s\001", msg);
 100
 101   LUA_RETURN(ps, lua_cmsg(LUA_PUKECHAN, "lua-ctcp: %s (%s)", np->nick, msg));
 102 }
 103
 104 static int lua_noticecmd(lua_State *ps) {
 105   const char *n, *msg;
 106   nick *np;
 107
 108   if(!lua_isstring(ps, 1) || !lua_isstring(ps, 2))
 109     LUA_RETURN(ps, LUA_FAIL);
 110
 111   n = lua_tostring(ps, 1);
 112   msg = lua_tostring(ps, 2);
 113
 114   np = getnickbynick(n);
 115   if(!np || !lua_lineok(msg))
 116     LUA_RETURN(ps, LUA_FAIL);
 117
 118   lua_notice(np, "%s", msg);
 119
 120   LUA_RETURN(ps, LUA_OK);
 121 }
 122
 123 static int lua_privmsgcmd(lua_State *ps) {
 124   const char *n, *msg;
 125   nick *np;
 126
 127   if(!lua_isstring(ps, 1) || !lua_isstring(ps, 2))
 128     LUA_RETURN(ps, LUA_FAIL);
 129
 130   n = lua_tostring(ps, 1);
 131   msg = lua_tostring(ps, 2);
 132
 133   np = getnickbynick(n);
 134   if(!np || !lua_lineok(msg))
 135     LUA_RETURN(ps, LUA_FAIL);
 136
 137   lua_message(np, "%s", msg);
 138
 139   LUA_RETURN(ps, LUA_OK);
 140 }
 141
 142 static int lua_kill(lua_State *ps) {
 143   const char *n, *msg;
 144   nick *np;
 145
 146   if(!lua_isstring(ps, 1) || !lua_isstring(ps, 2))
 147     LUA_RETURN(ps, LUA_FAIL);
 148
 149   n = lua_tostring(ps, 1);
 150   msg = lua_tostring(ps, 2);
 151
 152   np = getnickbynick(n);
 153   if(!np)
 154     LUA_RETURN(ps, LUA_FAIL);
 155
 156   if(IsOper(np) || IsService(np) || IsXOper(np))
 157     LUA_RETURN(ps, LUA_FAIL);
 158
 159   if(!lua_lineok(msg))
 160     LUA_RETURN(ps, LUA_FAIL);
 161
 162   killuser(lua_nick, np, "%s", msg);
 163
 164   LUA_RETURN(ps, lua_cmsg(LUA_PUKECHAN, "lua-KILL: %s (%s)", np->nick, msg));
 165 }
 166
 167 static int lua_kick(lua_State *ps) {
 168   const char *n, *msg, *chan;
 169   nick *np;
 170   channel *cp;
 171   int dochecks = 1;
 172
 173   if(!lua_isstring(ps, 1) || !lua_isstring(ps, 2) || !lua_isstring(ps, 3))
 174     LUA_RETURN(ps, LUA_FAIL);
 175
 176   chan = lua_tostring(ps, 1);
 177   n = lua_tostring(ps, 2);
 178   msg = lua_tostring(ps, 3);
 179
 180   if(lua_isboolean(ps, 4) && !lua_toboolean(ps, 4))
 181     dochecks = 0;
 182
 183   np = getnickbynick(n);
 184   if(!np)
 185     LUA_RETURN(ps, LUA_FAIL);
 186
 187   if(dochecks && (IsOper(np) || IsXOper(np) || IsService(np)))
 188     LUA_RETURN(ps, LUA_FAIL);
 189
 190   cp = findchannel((char *)chan);
 191   if(!cp)
 192     LUA_RETURN(ps, LUA_FAIL);
 193
 194   if(!lua_lineok(msg))
 195     LUA_RETURN(ps, LUA_FAIL);
 196
 197   localkickuser(lua_nick, cp, np, msg);
 198
 199   LUA_RETURN(ps, LUA_OK);
 200 }
 201
 202 static int lua_invite(lua_State *ps) {
 203   nick *np;
 204   channel *cp;
 205
 206   if(!lua_isstring(ps, 1) || !lua_isstring(ps, 2))
 207     LUA_RETURN(ps, LUA_FAIL);
 208
 209   np = getnickbynick((char *)lua_tostring(ps, 1));
 210   if(!np)
 211     LUA_RETURN(ps, LUA_FAIL);
 212
 213   cp = findchannel((char *)lua_tostring(ps, 2));
 214   if(!cp)
 215     LUA_RETURN(ps, LUA_FAIL);
 216
 217   localinvite(lua_nick, cp->index, np);
 218
 219   LUA_RETURN(ps, LUA_OK);
 220 }
 221
 222 static int lua_gline(lua_State *ps) {
 223   glineinfo *info;
 224   const char *reason;
 225   nick *target;
 226   int duration;
 227
 228   if(!lua_isstring(ps, 1) || !lua_isint(ps, 2) || !lua_isstring(ps, 3))
 229     LUA_RETURN(ps, LUA_FAIL);
 230
 231   duration = lua_toint(ps, 2);
 232   if((duration < 1) || (duration >  31 * 86400))
 233     LUA_RETURN(ps, LUA_FAIL);
 234
 235   reason = lua_tostring(ps, 3);
 236   if(!lua_lineok(reason) || !reason)
 237     LUA_RETURN(ps, LUA_FAIL);
 238
 239   target = getnickbynick(lua_tostring(ps, 1));
 240   if(!target || (IsOper(target) || IsXOper(target) || IsService(target)))
 241     LUA_RETURN(ps, LUA_FAIL);
 242
 243   if(glinebynick(target, duration, reason, GLINE_SIMULATE, "lua") > 50)
 244     LUA_RETURN(ps, LUA_FAIL);
 245
 246   info = glinebynickex(target, duration, reason, 0, "lua");
 247   LUA_RETURN(ps, lua_cmsg(LUA_PUKECHAN, "lua-GLINE: %s (%d users, %d seconds -- %s)", info->mask, info->hits, duration, reason));
 248 }
 249
 250 static int lua_fastgetchaninfo(lua_State *ps) {
 251   static struct lua_pusher *ourpusher[MAX_PUSHER];
 252   channel *cp;
 253
 254   if(!lua_isstring(ps, 1))
 255     return 0;
 256
 257   cp = findchannel((char *)lua_tostring(ps, 1));
 258   if(!cp || cp->index->channel != cp)
 259     return 0;
 260
 261   lua_setupchanpusher(ps, 2, ourpusher, MAX_PUSHER);
 262   return lua_usepusher(ps, ourpusher, cp->index);
 263 }
 264
 265 static int lua_opchan(lua_State *ps) {
 266   channel *cp;
 267   nick *np;
 268
 269   if(!lua_isstring(ps, 1) || !lua_isstring(ps, 2))
 270     LUA_RETURN(ps, LUA_FAIL);
 271
 272   cp = findchannel((char *)lua_tostring(ps, 1));
 273   if(!cp)
 274     LUA_RETURN(ps, LUA_FAIL);
 275
 276   np = getnickbynick((char *)lua_tostring(ps, 2));
 277   if(!np)
 278     LUA_RETURN(ps, LUA_FAIL);
 279
 280   localsetmodes(lua_nick, cp, np, MC_OP);
 281   LUA_RETURN(ps, LUA_OK);
 282 }
 283
 284 static int lua_deopchan(lua_State *ps) {
 285   channel *cp;
 286   nick *np;
 287
 288   if(!lua_isstring(ps, 1) || !lua_isstring(ps, 2))
 289     LUA_RETURN(ps, LUA_FAIL);
 290
 291   cp = findchannel((char *)lua_tostring(ps, 1));
 292   if(!cp)
 293     LUA_RETURN(ps, LUA_FAIL);
 294
 295   np = getnickbynick((char *)lua_tostring(ps, 2));
 296   if(!np)
 297     LUA_RETURN(ps, LUA_FAIL);
 298
 299   localsetmodes(lua_nick, cp, np, MC_DEOP);
 300   LUA_RETURN(ps, LUA_OK);
 301 }
 302
 303 static int lua_voicechan(lua_State *ps) {
 304   channel *cp;
 305   nick *np;
 306
 307   if(!lua_isstring(ps, 1) || !lua_isstring(ps, 2))
 308     LUA_RETURN(ps, LUA_FAIL);
 309
 310   cp = findchannel((char *)lua_tostring(ps, 1));
 311   if(!cp)
 312     LUA_RETURN(ps, LUA_FAIL);
 313
 314   np = getnickbynick((char *)lua_tostring(ps, 2));
 315   if(!np)
 316     LUA_RETURN(ps, LUA_FAIL);
 317
 318   localsetmodes(lua_nick, cp, np, MC_VOICE);
 319   LUA_RETURN(ps, LUA_OK);
 320 }
 321
 322 static int lua_counthost(lua_State *ps) {
 323   long numeric;
 324   nick *np;
 325
 326   if(!lua_islong(ps, 1))
 327     return 0;
 328
 329   numeric = lua_tolong(ps, 1);
 330
 331   np = getnickbynumeric(numeric);
 332   if(!np)
 333     return 0;
 334
 335   lua_pushint(ps, np->host->clonecount);
 336   return 1;
 337 }
 338
 339 static int lua_versioninfo(lua_State *ps) {
 340   lua_pushstring(ps, LUA_VERSION);
 341   lua_pushstring(ps, LUA_BOTVERSION);
 342   lua_pushstring(ps, __DATE__);
 343   lua_pushstring(ps, __TIME__);
 344
 345   lua_pushstring(ps, LUA_AUXVERSION);
 346
 347   return 5;
 348 }
 349
 350 static int lua_nickmatchban(lua_State *ps) {
 351   const char *chanban_str;
 352   long numeric;
 353   chanban *cb;
 354   nick *np;
 355
 356   if(!lua_islong(ps, 1) || !lua_isstring(ps, 2))
 357     return 0;
 358
 359   numeric = lua_tolong(ps, 1);
 360   chanban_str = lua_tostring(ps, 2);
 361
 362   np = getnickbynumeric(numeric);
 363   if(!np)
 364     return 0;
 365
 366   cb = makeban(chanban_str);
 367   if(!cb)
 368     return 0;
 369
 370   lua_pushboolean(ps, nickmatchban(np, cb, 1));
 371
 372   freechanban(cb);
 373
 374   return 1;
 375 }
 376
 377 static int lua_nickbanned(lua_State *ps) {
 378   const char *channel_str;
 379   long numeric;
 380   channel *cp;
 381   nick *np;
 382
 383   if(!lua_islong(ps, 1) || !lua_isstring(ps, 2))
 384     return 0;
 385
 386   numeric = lua_tolong(ps, 1);
 387   channel_str = lua_tostring(ps, 2);
 388
 389   np = getnickbynumeric(numeric);
 390   if(!np)
 391     return 0;
 392
 393   cp = findchannel((char *)channel_str);
 394   if(!cp)
 395     return 0;
 396
 397   lua_pushboolean(ps, nickbanned(np, cp, 1));
 398
 399   return 1;
 400 }
 401
 402 static int lua_suggestbanmask(lua_State *ps) {
 403   nick *np;
 404   glinebuf gb;
 405   gline *gl;
 406   long numeric;
 407   int i = 1;
 408
 409   if (!lua_islong(ps, 1))
 410     return 0;
 411
 412   numeric = lua_tolong(ps, 1);
 413
 414   np = getnickbynumeric(numeric);
 415   if (!np)
 416     return 0;
 417
 418   glinebufinit(&gb, 0);
 419   glinebufaddbynick(&gb, np, 0, "Auto", "None", time(NULL), time(NULL), time(NULL));
 420
 421   lua_newtable(ps);
 422
 423   for (gl = gb.glines; gl; gl = gl->next) {
 424     if (gl->host && gl->host->content) {
 425       char *mask = glinetostring(gl);
 426       LUA_APUSHSTRING(ps, i, mask);
 427       i++;
 428     }
 429   }
 430
 431   glinebufabort(&gb);
 432
 433   return 1;
 434 }
 435
 436 static int lua_nickistrusted(lua_State *ps) {
 437   long numeric;
 438   nick *np;
 439
 440   if(!lua_islong(ps, 1))
 441     return 0;
 442
 443   numeric = lua_tolong(ps, 1);
 444
 445   np = getnickbynumeric(numeric);
 446   if(!np)
 447     return 0;
 448
 449   lua_pushboolean(ps, istrusted(np));
 450
 451   return 1;
 452 }
 453
 454 static int lua_basepath(lua_State *ps) {
 455   lua_pushfstring(ps, "%s/", cpath->content);
 456
 457   return 1;
 458 }
 459
 460 static int lua_botnick(lua_State *ps) {
 461   lua_pushstring(ps, luabotnick->content);
 462
 463   return 1;
 464 }
 465
 466 static int lua_numerictobase64(lua_State *ps) {
 467   if(!lua_islong(ps, 1))
 468     return 0;
 469
 470   lua_pushstring(ps, longtonumeric(lua_tolong(ps, 1), 5));
 471   return 1;
 472 }
 473
 474 static int lua_match(lua_State *ps) {
 475   const char *mask, *string;
 476
 477   if(!lua_isstring(ps, 1) || !lua_isstring(ps, 2))
 478     return 0;
 479
 480   mask = lua_tostring(ps, 1);
 481   string = lua_tostring(ps, 2);
 482
 483   if (!mask || !mask[0] || !string || !string[0])
 484     return 0;
 485
 486   lua_pushboolean(ps, match2strings(mask, string));
 487   return 1;
 488 }
 489
 490 static int lua_getuserbyauth(lua_State *l) {
 491   nick *np;
 492   int found = 0;
 493   authname *au;
 494
 495   if(!lua_isstring(l, 1))
 496     return 0;
 497
 498   au = getauthbyname(lua_tostring(l, 1));
 499   if(!au)
 500     return 0;
 501
 502   for(np=au->nicks;np;np=np->nextbyauthname) {
 503     lua_pushnumeric(l, np->numeric);
 504     found++;
 505   }
 506
 507   return found;
 508 }
 509
 510 static int lua_getnickchans(lua_State *l) {
 511   nick *np;
 512   int i;
 513   channel **channels;
 514
 515   if(!lua_islong(l, 1))
 516     return 0;
 517
 518   np = getnickbynumeric(lua_tolong(l, 1));
 519   if(!np)
 520     return 0;
 521
 522   channels = (channel **)np->channels->content;
 523   for(i=0;i<np->channels->cursi;i++)
 524     lua_pushstring(l, channels[i]->index->name->content);
 525
 526   return np->channels->cursi;
 527 }
 528
 529 static int lua_getnickchanindex(lua_State *l) {
 530   nick *np;
 531   int offset;
 532
 533   if(!lua_islong(l, 1) || !lua_isint(l, 2))
 534     return 0;
 535
 536   np = getnickbynumeric(lua_tolong(l, 1));
 537   if(!np)
 538     return 0;
 539
 540   offset = lua_toint(l, 2);
 541   if((offset < 0) || (offset >= np->channels->cursi))
 542     return 0;
 543
 544   lua_pushstring(l, ((channel **)np->channels->content)[offset]->index->name->content);
 545
 546   return 1;
 547 }
 548
 549 int hashindex;
 550 nick *lasthashnick;
 551 static int geoipext;
 552
 553 struct lua_pusher *nickhashpusher[MAX_PUSHER];
 554
 555 static int lua_getnextnick(lua_State *l) {
 556   if(!lasthashnick && (hashindex != -1))
 557     return 0;
 558
 559   do {
 560     if(!lasthashnick) {
 561       hashindex++;
 562       if(hashindex >= NICKHASHSIZE)
 563         return 0;
 564       lasthashnick = nicktable[hashindex];
 565     } else {
 566       lasthashnick = lasthashnick->next;
 567     }
 568   } while(!lasthashnick);
 569
 570   return lua_usepusher(l, nickhashpusher, lasthashnick);
 571 }
 572
 573 static int lua_getfirstnick(lua_State *l) {
 574   hashindex = -1;
 575   lasthashnick = NULL;
 576
 577   lua_setupnickpusher(l, 1, nickhashpusher, MAX_PUSHER);
 578   geoipext = findnickext("geoip");
 579
 580   return lua_getnextnick(l);
 581 }
 582
 583 int chanhashindex;
 584 chanindex *lasthashchan;
 585
 586 struct lua_pusher *chanhashpusher[MAX_PUSHER];
 587
 588 static int lua_getnextchan(lua_State *l) {
 589   if(!lasthashchan && (chanhashindex != -1))
 590     return 0;
 591
 592   do {
 593     if(!lasthashchan) {
 594       chanhashindex++;
 595       if(chanhashindex >= CHANNELHASHSIZE)
 596         return 0;
 597       lasthashchan = chantable[chanhashindex];
 598     } else {
 599       lasthashchan = lasthashchan->next;
 600     }
 601   } while(!lasthashchan || !lasthashchan->channel);
 602
 603   return lua_usepusher(l, chanhashpusher, lasthashchan);
 604 }
 605
 606 static int lua_getfirstchan(lua_State *l) {
 607   chanhashindex = -1;
 608   lasthashchan = NULL;
 609
 610   lua_setupchanpusher(l, 1, chanhashpusher, MAX_PUSHER);
 611
 612   return lua_getnextchan(l);
 613 }
 614
 615 static int lua_getnickchancount(lua_State *l) {
 616   nick *np;
 617
 618   if(!lua_islong(l, 1))
 619     return 0;
 620
 621   np = getnickbynumeric(lua_tolong(l, 1));
 622   if(!np)
 623     return 0;
 624
 625   lua_pushint(l, np->channels->cursi);
 626
 627   return 1;
 628 }
 629
 630 static int lua_gethostusers(lua_State *l) {
 631   nick *np;
 632   int count;
 633
 634   if(!lua_islong(l, 1))
 635     return 0;
 636
 637   np = getnickbynumeric(lua_tolong(l, 1));
 638   if(!np || !np->host || !np->host->nicks)
 639     return 0;
 640
 641   np = np->host->nicks;
 642   count = np->host->clonecount;
 643
 644   do {
 645     lua_pushnumeric(l, np->numeric);
 646     np = np->nextbyhost;
 647   } while(np);
 648
 649   return count;
 650 }
 651
 652 static int lua_getnickcountry(lua_State *l) {
 653   nick *np;
 654   int ext;
 655
 656   ext = findnickext("geoip");
 657   if(ext == -1)
 658     return 0;
 659
 660   if(!lua_islong(l, 1))
 661     return 0;
 662
 663   np = getnickbynumeric(lua_tolong(l, 1));
 664   if(!np)
 665     return 0;
 666
 667   lua_pushint(l, (long)np->exts[ext]);
 668   return 1;
 669 }
 670
 671 static int lua_chanfix(lua_State *ps) {
 672   channel *cp;
 673   nick *np;
 674
 675   if(!lua_isstring(ps, 1))
 676     LUA_RETURN(ps, LUA_FAIL);
 677
 678   cp = findchannel((char *)lua_tostring(ps, 1));
 679   if(!cp || !cp->index)
 680     LUA_RETURN(ps, LUA_FAIL);
 681
 682   np = getnickbynick(LUA_CHANFIXBOT);
 683   if(!np)
 684     LUA_RETURN(ps, LUA_FAIL);
 685
 686   lua_message(np, "chanfix %s", cp->index->name->content);
 687
 688   LUA_RETURN(ps, LUA_OK);
 689 }
 690
 691 static int lua_clearmode(lua_State *ps) {
 692   channel *cp;
 693   int i;
 694   nick *np;
 695   unsigned long *lp;
 696   modechanges changes;
 697
 698   if(!lua_isstring(ps, 1))
 699     LUA_RETURN(ps, LUA_FAIL);
 700
 701   cp = findchannel((char *)lua_tostring(ps, 1));
 702   if(!cp || !cp->users)
 703     LUA_RETURN(ps, LUA_FAIL);
 704
 705   localsetmodeinit(&changes, cp, lua_nick);
 706
 707   localdosetmode_key(&changes, NULL, MCB_DEL);
 708   localdosetmode_simple(&changes, 0, CHANMODE_INVITEONLY | CHANMODE_LIMIT);
 709
 710   while(cp->bans)
 711     localdosetmode_ban(&changes, bantostring(cp->bans), MCB_DEL);
 712
 713   for(i=0,lp=cp->users->content;i<cp->users->hashsize;i++,lp++)
 714     if((*lp != nouser) && (*lp & CUMODE_OP)) {
 715       np = getnickbynumeric(*lp);
 716       if(np && !IsService(np))
 717         localdosetmode_nick(&changes, np, MC_DEOP);
 718     }
 719
 720   localsetmodeflush(&changes, 1);
 721
 722   LUA_RETURN(ps, LUA_OK);
 723 }
 724
 725 static int lua_ban(lua_State *ps) {
 726   channel *cp;
 727   const char *mask;
 728   modechanges changes;
 729   int dir = MCB_ADD;
 730
 731   if(!lua_isstring(ps, 1) || !lua_isstring(ps, 2))
 732     LUA_RETURN(ps, LUA_FAIL);
 733
 734   if(lua_isboolean(ps, 3) && lua_toboolean(ps, 3))
 735     dir = MCB_DEL;
 736
 737   cp = findchannel((char *)lua_tostring(ps, 1));
 738   if(!cp)
 739     LUA_RETURN(ps, LUA_FAIL);
 740
 741   mask = lua_tostring(ps, 2);
 742   if(!mask || !mask[0] || !lua_lineok(mask))
 743     LUA_RETURN(ps, LUA_FAIL);
 744
 745   localsetmodeinit(&changes, cp, lua_nick);
 746   localdosetmode_ban(&changes, mask, dir);
 747   localsetmodeflush(&changes, 1);
 748
 749   LUA_RETURN(ps, LUA_OK);
 750 }
 751
 752 static int lua_topic(lua_State *ps) {
 753   channel *cp;
 754   char *topic;
 755
 756   if(!lua_isstring(ps, 1) || !lua_isstring(ps, 2))
 757     LUA_RETURN(ps, LUA_FAIL);
 758
 759   cp = findchannel((char *)lua_tostring(ps, 1));
 760   if(!cp)
 761     LUA_RETURN(ps, LUA_FAIL);
 762
 763   topic = (char *)lua_tostring(ps, 2);
 764   if(!topic || !lua_lineok(topic))
 765     LUA_RETURN(ps, LUA_FAIL);
 766
 767   localsettopic(lua_nick, cp, topic);
 768
 769   LUA_RETURN(ps, LUA_OK);
 770 }
 771
 772 static int lua_getuserchanmodes(lua_State *l) {
 773   nick *np;
 774   channel *cp;
 775   unsigned long *lp;
 776
 777   if(!lua_islong(l, 1) || !lua_isstring(l, 2))
 778     return 0;
 779
 780   np = getnickbynumeric(lua_tolong(l, 1));
 781   if(!np)
 782     return 0;
 783
 784   cp = findchannel((char *)lua_tostring(l, 2));
 785   if(!cp || !cp->users)
 786     return 0;
 787
 788   lp = getnumerichandlefromchanhash(cp->users, np->numeric);
 789   if(!lp)
 790     return 0;
 791
 792   LUA_PUSHNICKCHANMODES(l, lp);
 793   return 1;
 794 }
 795
 796 static int lua_getusermodes(lua_State *l) {
 797   nick *np;
 798
 799   if(!lua_islong(l, 1))
 800     return 0;
 801
 802   np = getnickbynumeric(lua_tolong(l, 1));
 803   if(!np)
 804     return 0;
 805
 806   lua_pushstring(l, printflags(np->umodes, umodeflags));
 807   return 1;
 808 }
 809
 810 static int lua_fastgetnickbynumeric(lua_State *l) {
 811   static struct lua_pusher *ourpusher[MAX_PUSHER];
 812   nick *np;
 813
 814   if(!lua_islong(l, 1))
 815     return 0;
 816
 817   np = getnickbynumeric(lua_tolong(l, 1));
 818   if(!np)
 819     return 0;
 820
 821   lua_setupnickpusher(l, 2, ourpusher, MAX_PUSHER);
 822   return lua_usepusher(l, ourpusher, np);
 823 }
 824
 825 static int lua_fastgetnickbynick(lua_State *l) {
 826   static struct lua_pusher *ourpusher[MAX_PUSHER];
 827   nick *np;
 828
 829   if(!lua_isstring(l, 1))
 830     return 0;
 831
 832   np = getnickbynick((char *)lua_tostring(l, 1));
 833   if(!np)
 834     return 0;
 835
 836   lua_setupnickpusher(l, 2, ourpusher, MAX_PUSHER);
 837   return lua_usepusher(l, ourpusher, np);
 838 }
 839
 840 int channelnicklistindex, channelnicklistcount = -1;
 841 channel *channelnicklist;
 842
 843 struct lua_pusher *channelnickpusher[MAX_PUSHER];
 844
 845 static int lua_getnextchannick(lua_State *l) {
 846   nick *np;
 847
 848   do {
 849     channelnicklistindex++;
 850
 851     if(channelnicklistindex >= channelnicklistcount)
 852       return 0;
 853   } while((channelnicklist->users->content[channelnicklistindex] == nouser) || !(np = getnickbynumeric(channelnicklist->users->content[channelnicklistindex])));
 854
 855   return lua_usepusher(l, channelnickpusher, np);
 856 }
 857
 858 static int lua_getfirstchannick(lua_State *l) {
 859   if(!lua_isstring(l, 1))
 860     return 0;
 861
 862   channelnicklist = findchannel((char *)lua_tostring(l, 1));
 863   if(!channelnicklist|| !channelnicklist->users)
 864     return 0;
 865
 866   channelnicklistindex = -1;
 867   channelnicklistcount = channelnicklist->users->hashsize;
 868
 869   lua_setupnickpusher(l, 2, channelnickpusher, MAX_PUSHER);
 870
 871   return lua_getnextchannick(l);
 872 }
 873
 874 static int lua_nickonchan(lua_State *l) {
 875   int success = 0;
 876   if(lua_islong(l, 1) && lua_isstring(l, 2)) {
 877     channel *cp = findchannel((char *)lua_tostring(l, 2));
 878     if(cp && cp->users) {
 879       unsigned long *lp = getnumerichandlefromchanhash(cp->users, lua_tolong(l, 1));
 880       if(lp)
 881         success = 1;
 882     }
 883   }
 884
 885   lua_pushboolean(l, success);
 886   return 1;
 887 }
 888
 889 static int lua_simplechanmode(lua_State *ps) {
 890   channel *cp;
 891   char *modes;
 892   flag_t add = 0, del = ~add;
 893   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;
 894   modechanges changes;
 895
 896   if(!lua_isstring(ps, 1) || !lua_isstring(ps, 2))
 897     LUA_RETURN(ps, LUA_FAIL);
 898
 899   cp = findchannel((char *)lua_tostring(ps, 1));
 900   if(!cp)
 901     LUA_RETURN(ps, LUA_FAIL);
 902
 903   modes = (char *)lua_tostring(ps, 2);
 904   if(!modes)
 905     LUA_RETURN(ps, LUA_FAIL);
 906
 907   if(setflags(&add, permitted, modes, cmodeflags, REJECT_DISALLOWED|REJECT_UNKNOWN) != REJECT_NONE)
 908     LUA_RETURN(ps, LUA_FAIL);
 909
 910   if(setflags(&del, permitted, modes, cmodeflags, REJECT_DISALLOWED|REJECT_UNKNOWN) != REJECT_NONE)
 911     LUA_RETURN(ps, LUA_FAIL);
 912
 913   localsetmodeinit(&changes, cp, lua_nick);
 914   localdosetmode_simple(&changes, add, ~del);
 915   localsetmodeflush(&changes, 1);
 916
 917   LUA_RETURN(ps, LUA_OK);
 918 }
 919
 920 static int lua_sethost(lua_State *ps) {
 921   char *ident, *host;
 922   nick *np;
 923
 924   if(!lua_islong(ps, 1) || !lua_isstring(ps, 2) || !lua_isstring(ps, 3))
 925     LUA_RETURN(ps, LUA_FAIL);
 926
 927   np = getnickbynumeric(lua_tolong(ps, 1));
 928   if(!np)
 929     LUA_RETURN(ps, LUA_FAIL);
 930
 931   ident = (char *)lua_tostring(ps, 2);
 932   host = (char *)lua_tostring(ps, 3);
 933   if(!lua_lineok(ident) || !lua_lineok(host))
 934     LUA_RETURN(ps, LUA_FAIL);
 935
 936   sethostuser(np, ident, host);
 937
 938   LUA_RETURN(ps, LUA_OK);
 939 }
 940
 941 static int lua_getvisiblehostmask(lua_State *l) {
 942   nick *np;
 943   char buf[HOSTLEN+USERLEN+NICKLEN+REALLEN+10];
 944
 945   if(!lua_islong(l, 1))
 946     return 0;
 947
 948   np = getnickbynumeric(lua_tolong(l, 1));
 949   if(!np)
 950     return 0;
 951
 952   lua_pushstring(l, visiblehostmask(np, buf));
 953   return 1;
 954 }
 955
 956 void lua_registercommands(lua_State *l) {
 957   lua_register(l, "irc_smsg", lua_smsg);
 958   lua_register(l, "irc_skill", lua_skill);
 959
 960   lua_register(l, "chanmsg", lua_chanmsg);
 961   lua_register(l, "versioninfo", lua_versioninfo);
 962   lua_register(l, "basepath", lua_basepath);
 963   lua_register(l, "botnick", lua_botnick);
 964
 965   lua_register(l, "irc_report", lua_chanmsg);
 966   lua_register(l, "irc_ctcp", lua_ctcp);
 967   lua_register(l, "irc_kill", lua_kill);
 968   lua_register(l, "irc_kick", lua_kick);
 969   lua_register(l, "irc_invite", lua_invite);
 970   lua_register(l, "irc_gline", lua_gline);
 971   lua_register(l, "irc_counthost", lua_counthost);
 972   lua_register(l, "irc_getuserbyauth", lua_getuserbyauth);
 973   lua_register(l, "irc_notice", lua_noticecmd);
 974   lua_register(l, "irc_privmsg", lua_privmsgcmd);
 975   lua_register(l, "irc_opchan", lua_opchan);
 976   lua_register(l, "irc_voicechan", lua_voicechan);
 977   lua_register(l, "irc_chanfix", lua_chanfix);
 978   lua_register(l, "irc_clearmode", lua_clearmode);
 979   lua_register(l, "irc_ban", lua_ban);
 980   lua_register(l, "irc_deopchan", lua_deopchan);
 981   lua_register(l, "irc_topic", lua_topic);
 982
 983   lua_register(l, "irc_getfirstnick", lua_getfirstnick);
 984   lua_register(l, "irc_getnextnick", lua_getnextnick);
 985
 986   lua_register(l, "irc_getnickchans", lua_getnickchans);
 987   lua_register(l, "irc_getnickchanindex", lua_getnickchanindex);
 988   lua_register(l, "irc_getnickchancount", lua_getnickchancount);
 989
 990   lua_register(l, "irc_getuserchanmodes", lua_getuserchanmodes);
 991
 992   lua_register(l, "irc_getfirstchannick", lua_getfirstchannick);
 993   lua_register(l, "irc_getnextchannick", lua_getnextchannick);
 994
 995   lua_register(l, "irc_gethostusers", lua_gethostusers);
 996   lua_register(l, "irc_getnickcountry", lua_getnickcountry);
 997
 998   lua_register(l, "irc_getfirstchan", lua_getfirstchan);
 999   lua_register(l, "irc_getnextchan", lua_getnextchan);
1000   lua_register(l, "irc_getusermodes", lua_getusermodes);
1001   lua_register(l, "irc_nickonchan", lua_nickonchan);
1002
1003   lua_register(l, "irc_fastgetnickbynumeric", lua_fastgetnickbynumeric);
1004   lua_register(l, "irc_fastgetnickbynick", lua_fastgetnickbynick);
1005   lua_register(l, "irc_fastgetchaninfo", lua_fastgetchaninfo);
1006
1007   lua_register(l, "irc_getvisiblehostmask", lua_getvisiblehostmask);
1008
1009   lua_register(l, "irc_simplechanmode", lua_simplechanmode);
1010   lua_register(l, "irc_sethost", lua_sethost);
1011
1012   lua_register(l, "irc_numerictobase64", lua_numerictobase64);
1013   lua_register(l, "ircmatch", lua_match);
1014
1015   lua_register(l, "irc_nickmatchban", lua_nickmatchban);
1016   lua_register(l, "irc_nickistrusted", lua_nickistrusted);
1017   lua_register(l, "irc_nickbanned", lua_nickbanned);
1018   lua_register(l, "irc_suggestbanmask", lua_suggestbanmask);
1019 }
1020
1021 /* --- */
1022
1023 static int lua_smsg(lua_State *ps) {
1024   if(!lua_isstring(ps, 1) || !lua_isstring(ps, 2))
1025     LUA_RETURN(ps, LUA_FAIL);
1026
1027   LUA_RETURN(ps, lua_cmsg((char *)lua_tostring(ps, 2), "%s", lua_tostring(ps, 1)));
1028 }
1029
1030 static int lua_skill(lua_State *ps) {
1031   const char *n, *msg;
1032   nick *np;
1033
1034   if(!lua_isstring(ps, 1) || !lua_isstring(ps, 2))
1035     LUA_RETURN(ps, LUA_FAIL);
1036
1037   n = lua_tostring(ps, 1);
1038   msg = lua_tostring(ps, 2);
1039
1040   np = getnickbynick(n);
1041   if(!np)
1042     LUA_RETURN(ps, LUA_FAIL);
1043
1044   if(IsOper(np) || IsService(np) || IsXOper(np))
1045     LUA_RETURN(ps, LUA_FAIL);
1046
1047   if(!lua_lineok(msg))
1048     LUA_RETURN(ps, LUA_FAIL);
1049
1050   killuser(lua_nick, np, "%s", msg);
1051
1052   LUA_RETURN(ps, LUA_OK);
1053 }
1054
1055 #define PUSHER_STRING 1
1056 #define PUSHER_REALNAME 2
1057 #define PUSHER_IP 3
1058 #define PUSHER_LONG 4
1059 #define PUSHER_HOSTNAME 5
1060 #define PUSHER_SSTRING 6
1061 #define PUSHER_TOTALUSERS 7
1062 #define PUSHER_TOPIC 8
1063 #define PUSHER_UMODES 9
1064 #define PUSHER_COUNTRY 10
1065 #define PUSHER_REALUSERS 11
1066 #define PUSHER_CHANMODES 12
1067 #define PUSHER_TIMESTAMP 13
1068 #define PUSHER_STRING_INDIRECT 14
1069 #define PUSHER_ACC_ID 15
1070 #define PUSHER_SERVER_NAME 16
1071 #define PUSHER_SERVER_NUMERIC 17
1072 #define PUSHER_IS_SERVICE 18
1073
1074 void lua_initnickpusher(void) {
1075   int i = 0;
1076
1077 #define PUSH_NICKPUSHER(F2, O2) nickpusher[i].argtype = F2; nickpusher[i].structname = #O2; nickpusher[i].offset = offsetof(nick, O2); i++;
1078 #define PUSH_NICKPUSHER_CUSTOM(F2, custom) nickpusher[i].argtype = F2; nickpusher[i].structname = custom; nickpusher[i].offset = 0; i++;
1079
1080   PUSH_NICKPUSHER(PUSHER_STRING, nick);
1081   PUSH_NICKPUSHER(PUSHER_STRING, ident);
1082   PUSH_NICKPUSHER(PUSHER_HOSTNAME, host);
1083   PUSH_NICKPUSHER(PUSHER_REALNAME, realname);
1084   PUSH_NICKPUSHER(PUSHER_STRING_INDIRECT, authname);
1085   PUSH_NICKPUSHER(PUSHER_IP, ipnode);
1086   PUSH_NICKPUSHER(PUSHER_LONG, numeric);
1087   PUSH_NICKPUSHER(PUSHER_LONG, timestamp);
1088   PUSH_NICKPUSHER(PUSHER_LONG, accountts);
1089   PUSH_NICKPUSHER(PUSHER_UMODES, umodes);
1090   PUSH_NICKPUSHER_CUSTOM(PUSHER_COUNTRY, "country");
1091   PUSH_NICKPUSHER_CUSTOM(PUSHER_ACC_ID, "accountid");
1092   PUSH_NICKPUSHER_CUSTOM(PUSHER_SERVER_NAME, "servername");
1093   PUSH_NICKPUSHER_CUSTOM(PUSHER_SERVER_NUMERIC, "servernumeric");
1094   PUSH_NICKPUSHER_CUSTOM(PUSHER_IS_SERVICE, "isservice");
1095
1096   nickpushercount = i;
1097   nickpusher[i].argtype = 0;
1098 }
1099
1100 void lua_setuppusher(struct lua_pusher *pusherlist, lua_State *l, int index, struct lua_pusher **lp, int max, int pcount) {
1101   int current = 0;
1102
1103   if(max > 0)
1104     lp[0] = NULL;
1105
1106   if(!lua_istable(l, index) || (max < 2))
1107     return;
1108
1109   lua_pushnil(l);
1110
1111   max--;
1112
1113   while(lua_next(l, index)) {
1114     if(lua_isint(l, -1)) {
1115       int index = lua_toint(l, -1);
1116       if((index >= 0) && (index < pcount))
1117         lp[current++] = &pusherlist[index];
1118     }
1119
1120     lua_pop(l, 1);
1121
1122     if(current == max)
1123       break;
1124   }
1125
1126   lp[current] = NULL;
1127 }
1128
1129 int lua_usepusher(lua_State *l, struct lua_pusher **lp, void *np) {
1130   int i = 0;
1131
1132   while(*lp) {
1133     void *offset = (void *)np + (*lp)->offset;
1134
1135     switch((*lp)->argtype) {
1136       case PUSHER_STRING:
1137         lua_pushstring(l, (char *)offset);
1138         break;
1139       case PUSHER_STRING_INDIRECT:
1140         lua_pushstring(l, *(char **)offset);
1141         break;
1142       case PUSHER_HOSTNAME:
1143         lua_pushstring(l, (*(host **)offset)->name->content);
1144         break;
1145       case PUSHER_REALNAME:
1146         lua_pushstring(l, (*(realname **)offset)->name->content);
1147         break;
1148       case PUSHER_SSTRING:
1149         lua_pushstring(l, (*((sstring **)offset))->content);
1150         break;
1151       case PUSHER_LONG:
1152         lua_pushlong(l, *((long *)offset));
1153         break;
1154       case PUSHER_TIMESTAMP:
1155         lua_pushlong(l, (*((channel **)offset))->timestamp);
1156         break;
1157       case PUSHER_IP:
1158         lua_pushstring(l, IPtostr((*((patricia_node_t **)offset))->prefix->sin));
1159         break;
1160       case PUSHER_TOTALUSERS:
1161         lua_pushint(l, (*((channel **)offset))->users->totalusers);
1162         break;
1163       case PUSHER_CHANMODES:
1164         lua_pushstring(l, printallmodes(*((channel **)offset)));
1165         break;
1166       case PUSHER_ACC_ID:
1167         {
1168           nick *tnp = (nick *)np;
1169           if(IsAccount(tnp) && tnp->auth) {
1170             lua_pushlong(l, tnp->auth->userid);
1171           } else {
1172             lua_pushnil(l);
1173           }
1174           break;
1175         }
1176       case PUSHER_REALUSERS:
1177         {
1178           channel *cp = *((channel **)offset);
1179           nick *np2;
1180           int i, currentusers = countuniquehosts(cp);
1181           for(i=0;i<cp->users->hashsize;i++) {
1182             if(cp->users->content[i]==nouser)
1183               continue;
1184
1185             if((np2=getnickbynumeric(cp->users->content[i]))==NULL) {
1186               Error("lua", ERR_ERROR, "Found unknown numeric %lu on channel %s", cp->users->content[i], cp->index->name->content);
1187               continue;
1188             }
1189
1190             if (IsXOper(np2) || IsService(np2))
1191               currentusers--;
1192           }
1193           lua_pushint(l, currentusers);
1194         }
1195         break;
1196       case PUSHER_UMODES:
1197         lua_pushstring(l, printflags(*((flag_t *)offset), umodeflags));
1198         break;
1199       case PUSHER_TOPIC:
1200         if((*((channel **)offset))->topic) {
1201           lua_pushstring(l, (*((channel **)offset))->topic->content);
1202         } else {
1203           lua_pushnil(l);
1204         }
1205         break;
1206       case PUSHER_COUNTRY:
1207         if(geoipext < 0) {
1208           lua_pushint(l, -1);
1209         } else {
1210           lua_pushint(l, (long)((nick *)offset)->exts[geoipext]);
1211         }
1212         break;
1213       case PUSHER_SERVER_NAME:
1214         lua_pushstring(l, serverlist[homeserver(((nick *)offset)->numeric)].name->content);
1215         break;
1216       case PUSHER_SERVER_NUMERIC:
1217         lua_pushint(l, homeserver(((nick *)offset)->numeric));
1218         break;
1219       case PUSHER_IS_SERVICE:
1220         lua_pushboolean(l, NickOnServiceServer((nick *)offset));
1221         break;
1222     }
1223
1224     i++;
1225     lp++;
1226   }
1227
1228   return i;
1229 }
1230
1231 void lua_initchanpusher(void) {
1232   int i = 0;
1233
1234 #define PUSH_CHANPUSHER(F2, O2, N2) chanpusher[i].argtype = F2; chanpusher[i].structname = N2; chanpusher[i].offset = offsetof(chanindex, O2); i++;
1235
1236   PUSH_CHANPUSHER(PUSHER_SSTRING, name, "name");
1237   PUSH_CHANPUSHER(PUSHER_TOTALUSERS, channel, "totalusers");
1238   PUSH_CHANPUSHER(PUSHER_TOPIC, channel, "topic");
1239   PUSH_CHANPUSHER(PUSHER_REALUSERS, channel, "realusers");
1240   PUSH_CHANPUSHER(PUSHER_TIMESTAMP, channel, "timestamp");
1241   PUSH_CHANPUSHER(PUSHER_CHANMODES, channel, "modes");
1242
1243   chanpushercount = i;
1244   chanpusher[i].argtype = 0;
1245 }
1246