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