src/mode.cpp

   1 /*       +------------------------------------+
   2  *       | Inspire Internet Relay Chat Daemon |
   3  *       +------------------------------------+
   4  *
   5  *  InspIRCd is copyright (C) 2002-2006 ChatSpike-Dev.
   6  *                       E-mail:
   7  *                <brain@chatspike.net>
   8  *                <Craig@chatspike.net>
   9  *
  10  * Written by Craig Edwards, Craig McLure, and others.
  11  * This program is free but copyrighted software; see
  12  *            the file COPYING for details.
  13  *
  14  * ---------------------------------------------------
  15  */
  16
  17 using namespace std;
  18
  19 #include "inspircd_config.h"
  20 #include "inspircd.h"
  21 #include "inspircd_io.h"
  22 #include <unistd.h>
  23 #include <sys/errno.h>
  24 #include <time.h>
  25 #include <string>
  26 #ifdef GCC3
  27 #include <ext/hash_map>
  28 #else
  29 #include <hash_map>
  30 #endif
  31 #include <map>
  32 #include <sstream>
  33 #include <vector>
  34 #include <deque>
  35 #include "connection.h"
  36 #include "users.h"
  37 #include "ctables.h"
  38 #include "globals.h"
  39 #include "modules.h"
  40 #include "dynamic.h"
  41 #include "wildcard.h"
  42 #include "message.h"
  43 #include "commands.h"
  44 #include "xline.h"
  45 #include "inspstring.h"
  46 #include "helperfuncs.h"
  47 #include "mode.h"
  48
  49 extern int MODCOUNT;
  50 extern std::vector<Module*> modules;
  51 extern std::vector<ircd_module*> factory;
  52 extern InspIRCd* ServerInstance;
  53 extern ServerConfig* Config;
  54
  55 extern time_t TIME;
  56
  57 userrec* ModeParser::SanityChecks(userrec *user,char *dest,chanrec *chan,int status)
  58 {
  59         userrec *d;
  60         if ((!user) || (!dest) || (!chan) || (!*dest))
  61         {
  62                 return NULL;
  63         }
  64         d = Find(dest);
  65         if (!d)
  66         {
  67                 WriteServ(user->fd,"401 %s %s :No such nick/channel",user->nick, dest);
  68                 return NULL;
  69         }
  70         return d;
  71 }
  72
  73 char* ModeParser::Grant(userrec *d,chanrec *chan,int MASK)
  74 {
  75         for (unsigned int i = 0; i < d->chans.size(); i++)
  76         {
  77                 if ((d->chans[i].channel != NULL) && (chan != NULL))
  78                 if (d->chans[i].channel == chan)
  79                 {
  80                         if (d->chans[i].uc_modes & MASK)
  81                         {
  82                                 return NULL;
  83                         }
  84                         d->chans[i].uc_modes = d->chans[i].uc_modes | MASK;
  85                         switch (MASK)
  86                         {
  87                                 case UCMODE_OP:
  88                                         d->chans[i].channel->AddOppedUser((char*)d);
  89                                 break;
  90                                 case UCMODE_HOP:
  91                                         d->chans[i].channel->AddHalfoppedUser((char*)d);
  92                                 break;
  93                                 case UCMODE_VOICE:
  94                                         d->chans[i].channel->AddVoicedUser((char*)d);
  95                                 break;
  96                         }
  97                         log(DEBUG,"grant: %s %s",d->chans[i].channel->name,d->nick);
  98                         return d->nick;
  99                 }
 100         }
 101         return NULL;
 102 }
 103
 104 char* ModeParser::Revoke(userrec *d,chanrec *chan,int MASK)
 105 {
 106         for (unsigned int i = 0; i < d->chans.size(); i++)
 107         {
 108                 if ((d->chans[i].channel != NULL) && (chan != NULL))
 109                 if (d->chans[i].channel == chan)
 110                 {
 111                         if ((d->chans[i].uc_modes & MASK) == 0)
 112                         {
 113                                 return NULL;
 114                         }
 115                         d->chans[i].uc_modes ^= MASK;
 116                         switch (MASK)
 117                         {
 118                                 case UCMODE_OP:
 119                                         d->chans[i].channel->DelOppedUser((char*)d);
 120                                 break;
 121                                 case UCMODE_HOP:
 122                                         d->chans[i].channel->DelHalfoppedUser((char*)d);
 123                                 break;
 124                                 case UCMODE_VOICE:
 125                                         d->chans[i].channel->DelVoicedUser((char*)d);
 126                                 break;
 127                         }
 128                         log(DEBUG,"revoke: %s %s",d->chans[i].channel->name,d->nick);
 129                         return d->nick;
 130                 }
 131         }
 132         return NULL;
 133 }
 134
 135 char* ModeParser::GiveOps(userrec *user,char *dest,chanrec *chan,int status)
 136 {
 137         userrec *d = this->SanityChecks(user,dest,chan,status);
 138
 139         if (d)
 140         {
 141                 if (user->server == d->server)
 142                 {
 143                         int MOD_RESULT = 0;
 144                         FOREACH_RESULT(I_OnAccessCheck,OnAccessCheck(user,d,chan,AC_OP));
 145
 146                         if (MOD_RESULT == ACR_DENY)
 147                                 return NULL;
 148                         if (MOD_RESULT == ACR_DEFAULT)
 149                         {
 150                                 if ((status < STATUS_OP) && (!is_uline(user->server)) && (IS_LOCAL(user)))
 151                                 {
 152                                         log(DEBUG,"%s cant give ops to %s because they have status %d and needs %d",user->nick,dest,status,STATUS_OP);
 153                                         WriteServ(user->fd,"482 %s %s :You're not a channel operator",user->nick, chan->name);
 154                                         return NULL;
 155                                 }
 156                         }
 157                 }
 158
 159                 return this->Grant(d,chan,UCMODE_OP);
 160         }
 161         return NULL;
 162 }
 163
 164 char* ModeParser::GiveHops(userrec *user,char *dest,chanrec *chan,int status)
 165 {
 166         userrec *d = this->SanityChecks(user,dest,chan,status);
 167
 168         if (d)
 169         {
 170                 if (user->server == d->server)
 171                 {
 172                         int MOD_RESULT = 0;
 173                         FOREACH_RESULT(I_OnAccessCheck,OnAccessCheck(user,d,chan,AC_HALFOP));
 174
 175                         if (MOD_RESULT == ACR_DENY)
 176                                 return NULL;
 177                         if (MOD_RESULT == ACR_DEFAULT)
 178                         {
 179                                 if ((status < STATUS_OP) && (!is_uline(user->server)) && (IS_LOCAL(user)))
 180                                 {
 181                                         WriteServ(user->fd,"482 %s %s :You're not a channel operator",user->nick, chan->name);
 182                                         return NULL;
 183                                 }
 184                         }
 185                 }
 186
 187                 return this->Grant(d,chan,UCMODE_HOP);
 188         }
 189         return NULL;
 190 }
 191
 192 char* ModeParser::GiveVoice(userrec *user,char *dest,chanrec *chan,int status)
 193 {
 194         userrec *d = this->SanityChecks(user,dest,chan,status);
 195
 196         if (d)
 197         {
 198                 if (user->server == d->server)
 199                 {
 200                         int MOD_RESULT = 0;
 201                         FOREACH_RESULT(I_OnAccessCheck,OnAccessCheck(user,d,chan,AC_VOICE));
 202
 203                         if (MOD_RESULT == ACR_DENY)
 204                                 return NULL;
 205                         if (MOD_RESULT == ACR_DEFAULT)
 206                         {
 207                                 if ((status < STATUS_HOP) && (!is_uline(user->server)) && (IS_LOCAL(user)))
 208                                 {
 209                                         WriteServ(user->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel",user->nick, chan->name);
 210                                         return NULL;
 211                                 }
 212                         }
 213                 }
 214
 215                 return this->Grant(d,chan,UCMODE_VOICE);
 216         }
 217         return NULL;
 218 }
 219
 220 char* ModeParser::TakeOps(userrec *user,char *dest,chanrec *chan,int status)
 221 {
 222         userrec *d = this->SanityChecks(user,dest,chan,status);
 223
 224         if (d)
 225         {
 226                 if (user->server == d->server)
 227                 {
 228                         int MOD_RESULT = 0;
 229                         FOREACH_RESULT(I_OnAccessCheck,OnAccessCheck(user,d,chan,AC_DEOP));
 230
 231                         if (MOD_RESULT == ACR_DENY)
 232                                 return NULL;
 233                         if (MOD_RESULT == ACR_DEFAULT)
 234                         {
 235                                 if ((status < STATUS_OP) && (!is_uline(user->server)) && (IS_LOCAL(user)) && (IS_LOCAL(user)))
 236                                 {
 237                                         WriteServ(user->fd,"482 %s %s :You are not a channel operator",user->nick, chan->name);
 238                                         return NULL;
 239                                 }
 240                         }
 241                 }
 242
 243                 return this->Revoke(d,chan,UCMODE_OP);
 244         }
 245         return NULL;
 246 }
 247
 248 char* ModeParser::TakeHops(userrec *user,char *dest,chanrec *chan,int status)
 249 {
 250         userrec *d = this->SanityChecks(user,dest,chan,status);
 251
 252         if (d)
 253         {
 254                 if (user->server == d->server)
 255                 {
 256                         int MOD_RESULT = 0;
 257                         FOREACH_RESULT(I_OnAccessCheck,OnAccessCheck(user,d,chan,AC_DEHALFOP));
 258
 259                         if (MOD_RESULT == ACR_DENY)
 260                                 return NULL;
 261                         if (MOD_RESULT == ACR_DEFAULT)
 262                         {
 263                                 /* Tweak by Brain suggested by w00t, allow a halfop to dehalfop themselves */
 264                                 if ((user != d) && ((status < STATUS_OP) && (!is_uline(user->server))) && (IS_LOCAL(user)))
 265                                 {
 266                                         WriteServ(user->fd,"482 %s %s :You are not a channel operator",user->nick, chan->name);
 267                                         return NULL;
 268                                 }
 269                         }
 270                 }
 271
 272                 return this->Revoke(d,chan,UCMODE_HOP);
 273         }
 274         return NULL;
 275 }
 276
 277 char* ModeParser::TakeVoice(userrec *user,char *dest,chanrec *chan,int status)
 278 {
 279         userrec *d = this->SanityChecks(user,dest,chan,status);
 280
 281         if (d)
 282         {
 283                 if (user->server == d->server)
 284                 {
 285                         int MOD_RESULT = 0;
 286                         FOREACH_RESULT(I_OnAccessCheck,OnAccessCheck(user,d,chan,AC_DEVOICE));
 287
 288                         if (MOD_RESULT == ACR_DENY)
 289                                 return NULL;
 290                         if (MOD_RESULT == ACR_DEFAULT)
 291                         {
 292                                 if ((status < STATUS_HOP) && (!is_uline(user->server)) && (IS_LOCAL(user)))
 293                                 {
 294                                         WriteServ(user->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel",user->nick, chan->name);
 295                                         return NULL;
 296                                 }
 297                         }
 298                 }
 299
 300                 return this->Revoke(d,chan,UCMODE_VOICE);
 301         }
 302         return NULL;
 303 }
 304
 305 char* ModeParser::AddBan(userrec *user,char *dest,chanrec *chan,int status)
 306 {
 307         BanItem b;
 308         int toomanyexclamation = 0;
 309         int toomanyat = 0;
 310
 311         if ((!user) || (!dest) || (!chan) || (!*dest))
 312         {
 313                 log(DEFAULT,"*** BUG *** AddBan was given an invalid parameter");
 314                 return NULL;
 315         }
 316
 317         for (char* i = dest; *i; i++)
 318         {
 319                 if ((*i < 32) || (*i > 126))
 320                 {
 321                         return NULL;
 322                 }
 323                 else if (*i == '!')
 324                 {
 325                         toomanyexclamation++;
 326                 }
 327                 else if (*i == '@')
 328                 {
 329                         toomanyat++;
 330                 }
 331         }
 332
 333         if (toomanyexclamation != 1 || toomanyat != 1)
 334                 /*
 335                  * this stops sillyness like n!u!u!u@h, though note that most
 336                  * ircds don't actually verify banmask validity. --w00t
 337                  */
 338                 return NULL;
 339
 340         long maxbans = GetMaxBans(chan->name);
 341         if ((unsigned)chan->bans.size() > (unsigned)maxbans)
 342         {
 343                 WriteServ(user->fd,"478 %s %s :Channel ban list for %s is full (maximum entries for this channel is %d)",user->nick, chan->name,chan->name,maxbans);
 344                 return NULL;
 345         }
 346
 347         log(DEBUG,"AddBan: %s %s",chan->name,user->nick);
 348
 349         int MOD_RESULT = 0;
 350         FOREACH_RESULT(I_OnAddBan,OnAddBan(user,chan,dest));
 351         if (MOD_RESULT)
 352                 return NULL;
 353
 354         TidyBan(dest);
 355         for (BanList::iterator i = chan->bans.begin(); i != chan->bans.end(); i++)
 356         {
 357                 if (!strcasecmp(i->data,dest))
 358                 {
 359                         // dont allow a user to set the same ban twice
 360                         return NULL;
 361                 }
 362         }
 363
 364         b.set_time = TIME;
 365         strlcpy(b.data,dest,MAXBUF);
 366         if (*user->nick)
 367         {
 368                 strlcpy(b.set_by,user->nick,NICKMAX-1);
 369         }
 370         else
 371         {
 372                 strlcpy(b.set_by,Config->ServerName,NICKMAX-1);
 373         }
 374         chan->bans.push_back(b);
 375         return dest;
 376 }
 377
 378 char* ModeParser::TakeBan(userrec *user,char *dest,chanrec *chan,int status)
 379 {
 380         if ((!user) || (!dest) || (!chan) || (!*dest)) {
 381                 log(DEFAULT,"*** BUG *** TakeBan was given an invalid parameter");
 382                 return 0;
 383         }
 384
 385         log(DEBUG,"del_ban: %s %s",chan->name,user->nick);
 386         for (BanList::iterator i = chan->bans.begin(); i != chan->bans.end(); i++)
 387         {
 388                 if (!strcasecmp(i->data,dest))
 389                 {
 390                         int MOD_RESULT = 0;
 391                         FOREACH_RESULT(I_OnDelBan,OnDelBan(user,chan,dest));
 392                         if (MOD_RESULT)
 393                                 return NULL;
 394                         chan->bans.erase(i);
 395                         return dest;
 396                 }
 397         }
 398         return NULL;
 399 }
 400
 401 // tidies up redundant modes, e.g. +nt-nt+i becomes +-+i,
 402 // a section further down the chain tidies up the +-+- crap.
 403 std::string ModeParser::CompressModes(std::string modes,bool channelmodes)
 404 {
 405         int counts[127];
 406         bool active[127];
 407         memset(counts,0,sizeof(counts));
 408         memset(active,0,sizeof(active));
 409         for (unsigned int i = 0; i < modes.length(); i++)
 410         {
 411                 if ((modes[i] == '+') || (modes[i] == '-'))
 412                         continue;
 413                 if (channelmodes)
 414                 {
 415                         if ((strchr("itnmsp",modes[i])) || ((ModeDefined(modes[i],MT_CHANNEL)) && (ModeDefinedOn(modes[i],MT_CHANNEL)==0) && (ModeDefinedOff(modes[i],MT_CHANNEL)==0)))
 416                         {
 417                                 log(DEBUG,"Tidy mode %c",modes[i]);
 418                                 counts[(unsigned int)modes[i]]++;
 419                                 active[(unsigned int)modes[i]] = true;
 420                         }
 421                 }
 422                 else
 423                 {
 424                         log(DEBUG,"Tidy mode %c",modes[i]);
 425                         counts[(unsigned int)modes[i]]++;
 426                         active[(unsigned int)modes[i]] = true;
 427                 }
 428         }
 429         for (int j = 65; j < 127; j++)
 430         {
 431                 if ((counts[j] > 1) && (active[j] == true))
 432                 {
 433                         static char v[2];
 434                         v[0] = (unsigned char)j;
 435                         v[1] = '\0';
 436                         std::string mode_str = v;
 437                         std::string::size_type pos = modes.find(mode_str);
 438                         if (pos != std::string::npos)
 439                         {
 440                                 log(DEBUG,"all occurances of mode %c to be deleted...",(unsigned char)j);
 441                                 while (modes.find(mode_str) != std::string::npos)
 442                                         modes.erase(modes.find(mode_str),1);
 443                                 log(DEBUG,"New mode line: %s",modes.c_str());
 444                         }
 445                 }
 446         }
 447         return modes;
 448 }
 449
 450 void ModeParser::ProcessModes(char **parameters,userrec* user,chanrec *chan,int status, int pcnt, bool servermode, bool silent, bool local)
 451 {
 452         if (!parameters) {
 453                 log(DEFAULT,"*** BUG *** process_modes was given an invalid parameter");
 454                 return;
 455         }
 456
 457         char outlist[MAXBUF];
 458         char *outpars[32];
 459         int param = 2;
 460         int pc = 0;
 461         int ptr = 0;
 462         int mdir = 1;
 463         char* r = NULL;
 464         bool k_set = false, l_set = false, previously_set_l = false, previously_unset_l = false, previously_set_k = false, previously_unset_k = false;
 465
 466         if (pcnt < 2)
 467         {
 468                 return;
 469         }
 470
 471         int MOD_RESULT = 0;
 472
 473         if (IS_LOCAL(user))
 474         {
 475                 FOREACH_RESULT(I_OnAccessCheck,OnAccessCheck(user,NULL,chan,AC_GENERAL_MODE));
 476                 if (MOD_RESULT == ACR_DENY)
 477                         return;
 478         }
 479
 480         log(DEBUG,"process_modes: start: parameters=%d",pcnt);
 481
 482         char* modelist = parameters[1];         /* mode list, e.g. +oo-o *
 483                                                  * parameters[2] onwards are parameters for
 484                                                  * modes that require them :) */
 485         *outlist = *modelist;
 486         char* outl = outlist+1;
 487
 488         mdir = (*modelist == '+');
 489
 490         log(DEBUG,"process_modes: modelist: %s",modelist);
 491
 492         std::string tidied = this->CompressModes(modelist,true);
 493         strlcpy(modelist,tidied.c_str(),MAXBUF);
 494
 495         int len = tidied.length();
 496         while (modelist[len-1] == ' ')
 497                 modelist[--len] = '\0';
 498
 499         char* modechar;
 500
 501         for (modechar = (modelist + 1); *modechar; ptr++, modechar++)
 502         {
 503                 r = NULL;
 504
 505                 /* If we have more than MAXMODES changes in one line,
 506                  * drop all after the MAXMODES
 507                  */
 508                 if (pc > MAXMODES-1)
 509                         break;
 510
 511                 log(DEBUG,"Mode %c",*modechar);
 512
 513                 {
 514                         switch (*modechar)
 515                         {
 516                                 case '-':
 517                                         *outl++ = '-';
 518                                         mdir = 0;
 519                                 break;
 520
 521                                 case '+':
 522                                         *outl++ = '+';
 523                                         mdir = 1;
 524                                 break;
 525
 526                                 case 'o':
 527                                         log(DEBUG,"Ops");
 528                                         if ((param >= pcnt)) break;
 529                                         log(DEBUG,"Enough parameters left");
 530                                         r = NULL;
 531                                         if (mdir == 1)
 532                                         {
 533                                                 MOD_RESULT = 0;
 534                                                 FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'o', parameters[param], true, 1));
 535                                                 if (!MOD_RESULT)
 536                                                 {
 537                                                         log(DEBUG,"calling GiveOps");
 538                                                         r = GiveOps(user,parameters[param++],chan,status);
 539                                                 }
 540                                                 else param++;
 541                                         }
 542                                         else
 543                                         {
 544                                                 MOD_RESULT = 0;
 545                                                 FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'o', parameters[param], false, 1));
 546                                                 if (!MOD_RESULT)
 547                                                 {
 548                                                         log(DEBUG,"calling TakeOps");
 549                                                         r = TakeOps(user,parameters[param++],chan,status);
 550                                                 }
 551                                                 else param++;
 552                                         }
 553                                         if (r)
 554                                         {
 555                                                 *outl++ = 'o';
 556                                                 outpars[pc++] = r;
 557                                         }
 558                                 break;
 559
 560                                 case 'h':
 561                                         if (((param >= pcnt)) || (!Config->AllowHalfop)) break;
 562                                         r = NULL;
 563                                         if (mdir == 1)
 564                                         {
 565                                                 MOD_RESULT = 0;
 566                                                 FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'h', parameters[param], true, 1));
 567                                                 if (!MOD_RESULT)
 568                                                 {
 569                                                         r = GiveHops(user,parameters[param++],chan,status);
 570                                                 }
 571                                                 else param++;
 572                                         }
 573                                         else
 574                                         {
 575                                                 MOD_RESULT = 0;
 576                                                 FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'h', parameters[param], false, 1));
 577                                                 if (!MOD_RESULT)
 578                                                 {
 579                                                         r = TakeHops(user,parameters[param++],chan,status);
 580                                                 }
 581                                                 else param++;
 582                                         }
 583                                         if (r)
 584                                         {
 585                                                 *outl++ = 'h';
 586                                                 outpars[pc++] = r;
 587                                         }
 588                                 break;
 589
 590
 591                                 case 'v':
 592                                         if ((param >= pcnt)) break;
 593                                         r = NULL;
 594                                         if (mdir == 1)
 595                                         {
 596                                                 MOD_RESULT = 0;
 597                                                 FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'v', parameters[param], true, 1));
 598                                                 if (!MOD_RESULT)
 599                                                 {
 600                                                         r = GiveVoice(user,parameters[param++],chan,status);
 601                                                 }
 602                                                 else param++;
 603                                         }
 604                                         else
 605                                         {
 606                                                 MOD_RESULT = 0;
 607                                                 FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'v', parameters[param], false, 1));
 608                                                 if (!MOD_RESULT)
 609                                                 {
 610                                                         r = TakeVoice(user,parameters[param++],chan,status);
 611                                                 }
 612                                                 else param++;
 613                                         }
 614                                         if (r)
 615                                         {
 616                                                 *outl++ = 'v';
 617                                                 outpars[pc++] = r;
 618                                         }
 619                                 break;
 620
 621                                 case 'b':
 622                                         if ((param >= pcnt)) break;
 623                                         r = NULL;
 624                                         if (mdir == 1)
 625                                         {
 626                                                 MOD_RESULT = 0;
 627                                                 FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'b', parameters[param], true, 1));
 628                                                 if (!MOD_RESULT)
 629                                                 {
 630                                                         r = AddBan(user,parameters[param++],chan,status);
 631                                                 }
 632                                                 else param++;
 633                                         }
 634                                         else
 635                                         {
 636                                                 MOD_RESULT = 0;
 637                                                 FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'b', parameters[param], false, 1));
 638                                                 if (!MOD_RESULT)
 639                                                 {
 640                                                         r = TakeBan(user,parameters[param++],chan,status);
 641                                                 }
 642                                                 else param++;
 643                                         }
 644                                         if (r)
 645                                         {
 646                                                 *outl++ = 'b';
 647                                                 outpars[pc++] = parameters[param-1];
 648                                         }
 649                                 break;
 650
 651
 652                                 case 'k':
 653                                         if ((param >= pcnt))
 654                                                 break;
 655
 656                                         if (mdir == 1)
 657                                         {
 658                                                 if (k_set)
 659                                                         break;
 660
 661                                                 if (previously_unset_k)
 662                                                         break;
 663                                                 previously_set_k = true;
 664
 665                                                 if (!*chan->key)
 666                                                 {
 667                                                         MOD_RESULT = 0;
 668                                                         FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'k', parameters[param], true, 1));
 669                                                         if (!MOD_RESULT)
 670                                                         {
 671                                                                 *outl++ = 'k';
 672                                                                 char key[MAXBUF];
 673                                                                 strlcpy(key,parameters[param++],32);
 674                                                                 outpars[pc++] = key;
 675                                                                 strlcpy(chan->key,key,MAXBUF);
 676                                                                 k_set = true;
 677                                                         }
 678                                                         else param++;
 679                                                 }
 680                                         }
 681                                         else
 682                                         {
 683                                                 /* checks on -k are case sensitive and only accurate to the
 684                                                    first 32 characters */
 685                                                 if (previously_set_k)
 686                                                         break;
 687                                                 previously_unset_k = true;
 688
 689                                                 char key[MAXBUF];
 690                                                 MOD_RESULT = 0;
 691                                                 FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'k', parameters[param], false, 1));
 692                                                 if (!MOD_RESULT)
 693                                                 {
 694                                                         strlcpy(key,parameters[param++],32);
 695                                                         /* only allow -k if correct key given */
 696                                                         if (!strcmp(chan->key,key))
 697                                                         {
 698                                                                 *outl++ = 'k';
 699                                                                 *chan->key = 0;
 700                                                                 outpars[pc++] = key;
 701                                                         }
 702                                                 }
 703                                                 else param++;
 704                                         }
 705                                 break;
 706
 707                                 case 'l':
 708                                         if (mdir == 0)
 709                                         {
 710                                                 if (previously_set_l)
 711                                                         break;
 712                                                 previously_unset_l = true;
 713                                                 MOD_RESULT = 0;
 714                                                 FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'l', "", false, 0));
 715                                                 if (!MOD_RESULT)
 716                                                 {
 717                                                         if (chan->limit)
 718                                                         {
 719                                                                 *outl++ = 'l';
 720                                                                 chan->limit = 0;
 721                                                         }
 722                                                 }
 723                                         }
 724
 725                                         if ((param >= pcnt)) break;
 726                                         if (mdir == 1)
 727                                         {
 728                                                 if (l_set)
 729                                                         break;
 730                                                 if (previously_unset_l)
 731                                                         break;
 732                                                 previously_set_l = true;
 733                                                 bool invalid = false;
 734                                                 for (char* f = parameters[param]; *f; f++)
 735                                                 {
 736                                                         if ((*f < '0') || (*f > '9'))
 737                                                         {
 738                                                                 invalid = true;
 739                                                         }
 740                                                 }
 741                                                 /* If the limit is < 1, or the new limit is the current limit, dont allow */
 742                                                 if ((atoi(parameters[param]) < 1) || ((chan->limit > 0) && (atoi(parameters[param]) == chan->limit)))
 743                                                 {
 744                                                         invalid = true;
 745                                                 }
 746
 747                                                 if (invalid)
 748                                                         break;
 749
 750                                                 MOD_RESULT = 0;
 751                                                 FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'l', parameters[param], true, 1));
 752                                                 if (!MOD_RESULT)
 753                                                 {
 754
 755                                                         chan->limit = atoi(parameters[param]);
 756
 757                                                         // reported by mech: large values cause underflow
 758                                                         if (chan->limit < 0)
 759                                                                 chan->limit = 0x7FFF;
 760                                                 }
 761
 762                                                 if (chan->limit)
 763                                                 {
 764                                                         *outl++ = 'l';
 765                                                         outpars[pc++] = parameters[param++];
 766                                                         l_set = true;
 767                                                 }
 768                                         }
 769                                 break;
 770
 771                                 case 'i':
 772                                         MOD_RESULT = 0;
 773                                         FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'i', "", mdir, 0));
 774                                         if (!MOD_RESULT)
 775                                         {
 776                                                 if (mdir)
 777                                                 {
 778                                                         if (!(chan->binarymodes & CM_INVITEONLY)) *outl++ = 'i';
 779                                                         chan->binarymodes |= CM_INVITEONLY;
 780                                                 }
 781                                                 else
 782                                                 {
 783                                                         if (chan->binarymodes & CM_INVITEONLY) *outl++ = 'i';
 784                                                         chan->binarymodes &= ~CM_INVITEONLY;
 785                                                 }
 786                                         }
 787                                 break;
 788
 789                                 case 't':
 790                                         MOD_RESULT = 0;
 791                                         FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 't', "", mdir, 0));
 792                                         if (!MOD_RESULT)
 793                                         {
 794                                                 if (mdir)
 795                                                 {
 796                                                         if (!(chan->binarymodes & CM_TOPICLOCK)) *outl++ = 't';
 797                                                         chan->binarymodes |= CM_TOPICLOCK;
 798                                                 }
 799                                                 else
 800                                                 {
 801                                                         if (chan->binarymodes & CM_TOPICLOCK) *outl++ = 't';
 802                                                         chan->binarymodes &= ~CM_TOPICLOCK;
 803                                                 }
 804                                         }
 805                                 break;
 806
 807                                 case 'n':
 808                                         MOD_RESULT = 0;
 809                                         FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'n', "", mdir, 0));
 810                                         if (!MOD_RESULT)
 811                                         {
 812                                                 if (mdir)
 813                                                 {
 814                                                         if (!(chan->binarymodes & CM_NOEXTERNAL)) *outl++ = 'n';
 815                                                         chan->binarymodes |= CM_NOEXTERNAL;
 816                                                 }
 817                                                 else
 818                                                 {
 819                                                         if (chan->binarymodes & CM_NOEXTERNAL) *outl++ = 'n';
 820                                                         chan->binarymodes &= ~CM_NOEXTERNAL;
 821                                                 }
 822                                         }
 823                                 break;
 824
 825                                 case 'm':
 826                                         MOD_RESULT = 0;
 827                                         FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'm', "", mdir, 0));
 828                                         if (!MOD_RESULT)
 829                                         {
 830                                                 if (mdir)
 831                                                 {
 832                                                         if (!(chan->binarymodes & CM_MODERATED)) *outl++ = 'm';
 833                                                         chan->binarymodes |= CM_MODERATED;
 834                                                 }
 835                                                 else
 836                                                 {
 837                                                         if (chan->binarymodes & CM_MODERATED) *outl++ = 'm';
 838                                                         chan->binarymodes &= ~CM_MODERATED;
 839                                                 }
 840                                         }
 841                                 break;
 842
 843                                 case 's':
 844                                         MOD_RESULT = 0;
 845                                         FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 's', "", mdir, 0));
 846                                         if (!MOD_RESULT)
 847                                         {
 848                                                 if (mdir)
 849                                                 {
 850                                                         if (!(chan->binarymodes & CM_SECRET)) *outl++ = 's';
 851                                                         chan->binarymodes |= CM_SECRET;
 852                                                         if (chan->binarymodes & CM_PRIVATE)
 853                                                         {
 854                                                                 chan->binarymodes &= ~CM_PRIVATE;
 855                                                                 if (mdir)
 856                                                                 {
 857                                                                         *outl++ = '-'; *outl++ = 'p'; *outl++ = '+';
 858                                                                 }
 859                                                         }
 860                                                 }
 861                                                 else
 862                                                 {
 863                                                         if (chan->binarymodes & CM_SECRET) *outl++ = 's';
 864                                                         chan->binarymodes &= ~CM_SECRET;
 865                                                 }
 866                                         }
 867                                 break;
 868
 869                                 case 'p':
 870                                         MOD_RESULT = 0;
 871                                         FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'p', "", mdir, 0));
 872                                         if (!MOD_RESULT)
 873                                         {
 874                                                 if (mdir)
 875                                                 {
 876                                                         if (!(chan->binarymodes & CM_PRIVATE)) *outl++ = 'p';
 877                                                         chan->binarymodes |= CM_PRIVATE;
 878                                                         if (chan->binarymodes & CM_SECRET)
 879                                                         {
 880                                                                 chan->binarymodes &= ~CM_SECRET;
 881                                                                 if (mdir)
 882                                                                 {
 883                                                                         *outl++ = '-'; *outl++ = 's'; *outl++ = '+';
 884                                                                 }
 885                                                         }
 886                                                 }
 887                                                 else
 888                                                 {
 889                                                         if (chan->binarymodes & CM_PRIVATE) *outl++ = 'p';
 890                                                         chan->binarymodes &= ~CM_PRIVATE;
 891                                                 }
 892                                         }
 893                                 break;
 894
 895                                 default:
 896                                         log(DEBUG,"Preprocessing custom mode %c: modelist: %s",*modechar,chan->custom_modes);
 897                                         string_list p;
 898                                         p.clear();
 899                                         if (((!strchr(chan->custom_modes,*modechar)) && (!mdir)) || ((strchr(chan->custom_modes,*modechar)) && (mdir)))
 900                                         {
 901                                                 if (!ModeIsListMode(*modechar,MT_CHANNEL))
 902                                                 {
 903                                                         log(DEBUG,"Mode %c isnt set on %s but trying to remove!",*modechar,chan->name);
 904                                                         break;
 905                                                 }
 906                                         }
 907                                         if (ModeDefined(*modechar,MT_CHANNEL))
 908                                         {
 909                                                 log(DEBUG,"A module has claimed this mode");
 910                                                 if (param<pcnt)
 911                                                 {
 912                                                         if ((ModeDefinedOn(*modechar,MT_CHANNEL)>0) && (mdir))
 913                                                         {
 914                                                                 p.push_back(parameters[param]);
 915                                                         }
 916                                                         if ((ModeDefinedOff(*modechar,MT_CHANNEL)>0) && (!mdir))
 917                                                         {
 918                                                                 p.push_back(parameters[param]);
 919                                                         }
 920                                                 }
 921                                                 bool handled = false;
 922                                                 if (param>=pcnt)
 923                                                 {
 924                                                         // we're supposed to have a parameter, but none was given... so dont handle the mode.
 925                                                         if (((ModeDefinedOn(*modechar,MT_CHANNEL)>0) && (mdir)) || ((ModeDefinedOff(*modechar,MT_CHANNEL)>0) && (!mdir)))
 926                                                         {
 927                                                                 log(DEBUG,"Not enough parameters for module-mode %c",*modechar);
 928                                                                 handled = true;
 929                                                                 param++;
 930                                                         }
 931                                                 }
 932
 933                                                 // BIG ASS IDIOTIC CODER WARNING!
 934                                                 // Using OnRawMode on another modules mode's behavour
 935                                                 // will confuse the crap out of admins! just because you CAN
 936                                                 // do it, doesnt mean you SHOULD!
 937                                                 MOD_RESULT = 0;
 938                                                 std::string para = "";
 939                                                 if (p.size())
 940                                                         para = p[0];
 941                                                 FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, *modechar, para, mdir, pcnt));
 942                                                 if (!MOD_RESULT)
 943                                                 {
 944                                                         for (int i = 0; i <= MODCOUNT; i++)
 945                                                         {
 946                                                                 if (!handled)
 947                                                                 {
 948                                                                         int t = modules[i]->OnExtendedMode(user,chan,*modechar,MT_CHANNEL,mdir,p);
 949                                                                         if (t != 0)
 950                                                                         {
 951                                                                                 log(DEBUG,"OnExtendedMode returned nonzero for a module");
 952                                                                                 if (ModeIsListMode(*modechar,MT_CHANNEL))
 953                                                                                 {
 954                                                                                         if (t == -1)
 955                                                                                         {
 956                                                                                                 //pc++;
 957                                                                                                 param++;
 958                                                                                         }
 959                                                                                         else
 960                                                                                         {
 961                                                                                                 if (param < pcnt)
 962                                                                                                 {
 963                                                                                                         *outl++ = *modechar;
 964                                                                                                 }
 965                                                                                                 outpars[pc++] = parameters[param++];
 966                                                                                         }
 967                                                                                 }
 968                                                                                 else
 969                                                                                 {
 970                                                                                         if (param < pcnt)
 971                                                                                         {
 972                                                                                                 *outl++ = *modechar;
 973                                                                                                 chan->SetCustomMode(*modechar,mdir);
 974                                                                                                 // include parameters in output if mode has them
 975                                                                                                 if ((ModeDefinedOn(*modechar,MT_CHANNEL)>0) && (mdir))
 976                                                                                                 {
 977                                                                                                         chan->SetCustomModeParam(modelist[ptr],parameters[param],mdir);
 978                                                                                                         outpars[pc++] = parameters[param++];
 979                                                                                                 }
 980                                                                                         }
 981                                                                                 }
 982                                                                                 // break, because only one module can handle the mode.
 983                                                                                 handled = true;
 984                                                                         }
 985                                                                 }
 986                                                         }
 987                                                 }
 988                                         }
 989                                         else
 990                                         {
 991                                                 WriteServ(user->fd,"472 %s %c :is unknown mode char to me",user->nick,*modechar);
 992                                         }
 993                                 break;
 994
 995                         }
 996                 }
 997         }
 998
 999         /* Null terminate it now we're done */
1000         *outl = 0;
1001
1002
1003         /************ Fast, but confusing string tidying ************/
1004         outl = outlist;
1005         while (*outl && (*outl < 'A'))
1006                 outl++;
1007         /* outl now points to the first mode character after +'s and -'s */
1008         outl--;
1009         /* Now points at first mode-modifier + or - symbol */
1010         char* trim = outl;
1011         /* Now we tidy off any trailing -'s etc */
1012         while (*trim++);
1013         trim--;
1014         while ((*--trim == '+') || (*trim == '-'))
1015                 *trim = 0;
1016         /************ Done wih the string tidy functions ************/
1017
1018
1019         /* The mode change must be at least two characters long (+ or - and at least one mode) */
1020         if (((*outl == '+') || (*outl == '-')) && *(outl+1))
1021         {
1022                 for (ptr = 0; ptr < pc; ptr++)
1023                 {
1024                         charlcat(outl,' ',MAXBUF);
1025                         strlcat(outl,outpars[ptr],MAXBUF-1);
1026                 }
1027                 if (local)
1028                 {
1029                         log(DEBUG,"Local mode change");
1030                         WriteChannelLocal(chan, user, "MODE %s %s",chan->name,outl);
1031                         FOREACH_MOD(I_OnMode,OnMode(user, chan, TYPE_CHANNEL, outl));
1032                 }
1033                 else
1034                 {
1035                         if (servermode)
1036                         {
1037                                 if (!silent)
1038                                 {
1039                                         WriteChannelWithServ(Config->ServerName,chan,"MODE %s %s",chan->name,outl);
1040                                 }
1041
1042                         }
1043                         else
1044                         {
1045                                 if (!silent)
1046                                 {
1047                                         WriteChannel(chan,user,"MODE %s %s",chan->name,outl);
1048                                         FOREACH_MOD(I_OnMode,OnMode(user, chan, TYPE_CHANNEL, outl));
1049                                 }
1050                         }
1051                 }
1052         }
1053 }
1054
1055 // based on sourcemodes, return true or false to determine if umode is a valid mode a user may set on themselves or others.
1056
1057 bool ModeParser::AllowedUmode(char umode, char* sourcemodes,bool adding,bool serveroverride)
1058 {
1059         log(DEBUG,"Allowed_umode: %c %s",umode,sourcemodes);
1060         // Servers can +o and -o arbitrarily
1061         if ((serveroverride == true) && (umode == 'o'))
1062         {
1063                 return true;
1064         }
1065         // RFC1459 specified modes
1066         if ((umode == 'w') || (umode == 's') || (umode == 'i'))
1067         {
1068                 log(DEBUG,"umode %c allowed by RFC1459 scemantics",umode);
1069                 return true;
1070         }
1071
1072         // user may not +o themselves or others, but an oper may de-oper other opers or themselves
1073         if ((strchr(sourcemodes,'o')) && (!adding))
1074         {
1075                 log(DEBUG,"umode %c allowed by RFC1459 scemantics",umode);
1076                 return true;
1077         }
1078         else if (umode == 'o')
1079         {
1080                 log(DEBUG,"umode %c allowed by RFC1459 scemantics",umode);
1081                 return false;
1082         }
1083
1084         // process any module-defined modes that need oper
1085         if ((ModeDefinedOper(umode,MT_CLIENT)) && (strchr(sourcemodes,'o')))
1086         {
1087                 log(DEBUG,"umode %c allowed by module handler (oper only mode)",umode);
1088                 return true;
1089         }
1090         else
1091         if (ModeDefined(umode,MT_CLIENT))
1092         {
1093                 // process any module-defined modes that don't need oper
1094                 log(DEBUG,"umode %c allowed by module handler (non-oper mode)",umode);
1095                 if ((ModeDefinedOper(umode,MT_CLIENT)) && (!strchr(sourcemodes,'o')))
1096                 {
1097                         // no, this mode needs oper, and this user 'aint got what it takes!
1098                         return false;
1099                 }
1100                 return true;
1101         }
1102
1103         // anything else - return false.
1104         log(DEBUG,"umode %c not known by any ruleset",umode);
1105         return false;
1106 }
1107
1108 bool ModeParser::ProcessModuleUmode(char umode, userrec* source, void* dest, bool adding)
1109 {
1110         userrec* s2;
1111         bool faked = false;
1112         if (!source)
1113         {
1114                 s2 = new userrec;
1115                 strlcpy(s2->nick,Config->ServerName,NICKMAX-1);
1116                 *s2->modes = 'o';
1117                 *(s2->modes+1) = 0;
1118                 s2->fd = -1;
1119                 source = s2;
1120                 faked = true;
1121         }
1122         string_list p;
1123         p.clear();
1124         if (ModeDefined(umode,MT_CLIENT))
1125         {
1126                 for (int i = 0; i <= MODCOUNT; i++)
1127                 {
1128                         if (modules[i]->OnExtendedMode(source,(void*)dest,umode,MT_CLIENT,adding,p))
1129                         {
1130                                 log(DEBUG,"Module %s claims umode %c",Config->module_names[i].c_str(),umode);
1131                                 return true;
1132                         }
1133                 }
1134                 log(DEBUG,"No module claims umode %c",umode);
1135                 if (faked)
1136                 {
1137                         delete s2;
1138                         source = NULL;
1139                 }
1140                 return false;
1141         }
1142         else
1143         {
1144                 if (faked)
1145                 {
1146                         delete s2;
1147                         source = NULL;
1148                 }
1149                 return false;
1150         }
1151 }
1152
1153 void cmd_mode::Handle (char **parameters, int pcnt, userrec *user)
1154 {
1155         chanrec* Ptr;
1156         userrec* dest;
1157         int can_change;
1158         int direction = 1;
1159         char outpars[MAXBUF];
1160         bool next_ok = true;
1161
1162         dest = Find(parameters[0]);
1163
1164         if (!user)
1165         {
1166                 return;
1167         }
1168
1169         if ((dest) && (pcnt == 1))
1170         {
1171                 WriteServ(user->fd,"221 %s :+%s",dest->nick,dest->modes);
1172                 return;
1173         }
1174
1175         if ((dest) && (pcnt > 1))
1176         {
1177                 std::string tidied = ServerInstance->ModeGrok->CompressModes(parameters[1],false);
1178                 parameters[1] = (char*)tidied.c_str();
1179
1180                 char dmodes[MAXBUF];
1181                 strlcpy(dmodes,dest->modes,MAXMODES);
1182                 log(DEBUG,"pulled up dest user modes: %s",dmodes);
1183
1184                 can_change = 0;
1185                 if (user != dest)
1186                 {
1187                         if ((strchr(user->modes,'o')) || (is_uline(user->server)))
1188                         {
1189                                 can_change = 1;
1190                         }
1191                 }
1192                 else
1193                 {
1194                         can_change = 1;
1195                 }
1196                 if (!can_change)
1197                 {
1198                         WriteServ(user->fd,"482 %s :Can't change mode for other users",user->nick);
1199                         return;
1200                 }
1201
1202                 outpars[0] = *parameters[1];
1203                 outpars[1] = 0;
1204                 direction = (*parameters[1] == '+');
1205
1206                 if ((*parameters[1] != '+') && (*parameters[1] != '-'))
1207                         return;
1208
1209                 for (char* i = parameters[1]; *i; i++)
1210                 {
1211                         if (*i == ' ')
1212                                 continue;
1213
1214                         if ((i != parameters[1]) && (*i != '+') && (*i != '-'))
1215                                 next_ok = true;
1216
1217                         if (*i == '+')
1218                         {
1219                                 if ((direction != 1) && (next_ok))
1220                                 {
1221                                         charlcat(outpars,'+',MAXBUF);
1222                                         next_ok = false;
1223                                 }
1224                                 direction = 1;
1225                         }
1226                         else
1227                         if (*i == '-')
1228                         {
1229                                 if ((direction != 0) && (next_ok))
1230                                 {
1231                                         charlcat(outpars,'-',MAXBUF);
1232                                         next_ok = false;
1233                                 }
1234                                 direction = 0;
1235                         }
1236                         else
1237                         {
1238                                 can_change = 0;
1239                                 if (strchr(user->modes,'o'))
1240                                 {
1241                                         can_change = 1;
1242                                 }
1243                                 else
1244                                 {
1245                                         if ((*i == 'i') || (*i == 'w') || (*i == 's') || (ServerInstance->ModeGrok->AllowedUmode(*i,user->modes,direction,false)))
1246                                         {
1247                                                 can_change = 1;
1248                                         }
1249                                 }
1250                                 if (can_change)
1251                                 {
1252                                         if (direction == 1)
1253                                         {
1254                                                 if ((!strchr(dmodes,*i)) && (ServerInstance->ModeGrok->AllowedUmode(*i,user->modes,true,false)))
1255                                                 {
1256                                                         if ((ServerInstance->ModeGrok->ProcessModuleUmode(*i, user, dest, direction)) || (*i == 'i') || (*i == 's') || (*i == 'w') || (*i == 'o'))
1257                                                         {
1258                                                                 charlcat(dmodes,*i,MAXMODES);
1259                                                                 charlcat(outpars,*i,MAXMODES);
1260                                                                 if (*i == 'o')
1261                                                                 {
1262                                                                         FOREACH_MOD(I_OnGlobalOper,OnGlobalOper(dest));
1263                                                                 }
1264                                                         }
1265                                                 }
1266                                         }
1267                                         else
1268                                         {
1269                                                 if ((ServerInstance->ModeGrok->AllowedUmode(*i,user->modes,false,false)) && (strchr(dmodes,*i)))
1270                                                 {
1271                                                         if ((ServerInstance->ModeGrok->ProcessModuleUmode(*i, user, dest, direction)) || (*i == 'i') || (*i == 's') || (*i == 'w') || (*i == 'o'))
1272                                                         {
1273                                                                 charlcat(outpars,*i,MAXMODES);
1274                                                                 charremove(dmodes,*i);
1275                                                                 if (*i == 'o')
1276                                                                 {
1277                                                                         *dest->oper = 0;
1278                                                                         DeleteOper(dest);
1279                                                                 }
1280                                                         }
1281                                                 }
1282                                         }
1283                                 }
1284                         }
1285                 }
1286                 if (*outpars)
1287                 {
1288                         char b[MAXBUF];
1289                         char* z = b;
1290
1291                         for (char* i = outpars; *i;)
1292                         {
1293                                 *z++ = *i++;
1294                                 if (((*i == '-') || (*i == '+')) && ((*(i+1) == '-') || (*(i+1) == '+')))
1295                                 {
1296                                         // someones playing silly buggers and trying
1297                                         // to put a +- or -+ into the line...
1298                                         i++;
1299                                 }
1300                                 if (!*(i+1))
1301                                 {
1302                                         // Someone's trying to make the last character in
1303                                         // the line be a + or - symbol.
1304                                         if ((*i == '-') || (*i == '+'))
1305                                         {
1306                                                 i++;
1307                                         }
1308                                 }
1309                         }
1310                         *z = 0;
1311
1312                         if ((*b) && (!IS_SINGLE(b,'+')) && (!IS_SINGLE(b,'-')))
1313                         {
1314                                 WriteTo(user, dest, "MODE %s :%s", dest->nick, b);
1315                                 FOREACH_MOD(I_OnMode,OnMode(user, dest, TYPE_USER, b));
1316                         }
1317
1318                         log(DEBUG,"Stripped mode line");
1319                         log(DEBUG,"Line dest is now %s",dmodes);
1320                         strlcpy(dest->modes,dmodes,MAXMODES-1);
1321
1322                 }
1323
1324                 return;
1325         }
1326
1327         Ptr = FindChan(parameters[0]);
1328         if (Ptr)
1329         {
1330                 if (pcnt == 1)
1331                 {
1332                         /* just /modes #channel */
1333                         WriteServ(user->fd,"324 %s %s +%s",user->nick, Ptr->name, chanmodes(Ptr,has_channel(user,Ptr)));
1334                         WriteServ(user->fd,"329 %s %s %d", user->nick, Ptr->name, Ptr->created);
1335                         return;
1336                 }
1337                 else
1338                 if (pcnt == 2)
1339                 {
1340                         char* mode = parameters[1];
1341                         if (*mode == '+')
1342                                 mode++;
1343                         int MOD_RESULT = 0;
1344                         FOREACH_RESULT(I_OnRawMode,OnRawMode(user, Ptr, *mode, "", false, 0));
1345                         if (!MOD_RESULT)
1346                         {
1347                                 if (*mode == 'b')
1348                                 {
1349
1350                                         for (BanList::iterator i = Ptr->bans.begin(); i != Ptr->bans.end(); i++)
1351                                         {
1352                                                 WriteServ(user->fd,"367 %s %s %s %s %d",user->nick, Ptr->name, i->data, i->set_by, i->set_time);
1353                                         }
1354                                         WriteServ(user->fd,"368 %s %s :End of channel ban list",user->nick, Ptr->name);
1355                                         return;
1356                                 }
1357                                 if ((ModeDefined(*mode,MT_CHANNEL)) && (ModeIsListMode(*mode,MT_CHANNEL)))
1358                                 {
1359                                         // list of items for an extmode
1360                                         log(DEBUG,"Calling OnSendList for all modules, list output for mode %c",*mode);
1361                                         FOREACH_MOD(I_OnSendList,OnSendList(user,Ptr,*mode));
1362                                         return;
1363                                 }
1364                         }
1365                 }
1366
1367                 if (((Ptr) && (!has_channel(user,Ptr))) && (!is_uline(user->server)) && (IS_LOCAL(user)))
1368                 {
1369                         WriteServ(user->fd,"442 %s %s :You're not on that channel!",user->nick, Ptr->name);
1370                         return;
1371                 }
1372
1373                 if (Ptr)
1374                 {
1375                         int MOD_RESULT = 0;
1376                         FOREACH_RESULT(I_OnAccessCheck,OnAccessCheck(user,NULL,Ptr,AC_GENERAL_MODE));
1377
1378                         if (MOD_RESULT == ACR_DENY)
1379                                 return;
1380                         if (MOD_RESULT == ACR_DEFAULT)
1381                         {
1382                                 if ((cstatus(user,Ptr) < STATUS_HOP) && (IS_LOCAL(user)))
1383                                 {
1384                                         WriteServ(user->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel",user->nick, Ptr->name);
1385                                         return;
1386                                 }
1387                         }
1388
1389                         ServerInstance->ModeGrok->ProcessModes(parameters,user,Ptr,cstatus(user,Ptr),pcnt,false,false,false);
1390                 }
1391         }
1392         else
1393         {
1394                 WriteServ(user->fd,"401 %s %s :No such nick/channel",user->nick, parameters[0]);
1395         }
1396 }
1397
1398
1399
1400
1401 void ModeParser::ServerMode(char **parameters, int pcnt, userrec *user)
1402 {
1403         chanrec* Ptr;
1404         userrec* dest;
1405         int can_change;
1406         int direction = 1;
1407         char outpars[MAXBUF];
1408         bool next_ok = true;
1409
1410         dest = Find(parameters[0]);
1411
1412         // fix: ChroNiCk found this - we cant use this as debug if its null!
1413         if (dest)
1414         {
1415                 log(DEBUG,"server_mode on %s",dest->nick);
1416         }
1417
1418         if ((dest) && (pcnt > 1))
1419         {
1420                 std::string tidied = ServerInstance->ModeGrok->CompressModes(parameters[1],false);
1421                 parameters[1] = (char*)tidied.c_str();
1422
1423                 char dmodes[MAXBUF];
1424                 strlcpy(dmodes,dest->modes,MAXBUF);
1425
1426                 outpars[0] = *parameters[1];
1427                 outpars[1] = 0;
1428                 direction = (*parameters[1] == '+');
1429
1430                 if ((*parameters[1] != '+') && (*parameters[1] != '-'))
1431                         return;
1432
1433                 for (char* i = parameters[1]; *i; i++)
1434                 {
1435                         if (*i == ' ')
1436                                 continue;
1437
1438                         if ((i != parameters[1]) && (*i != '+') && (*i != '-'))
1439                                 next_ok = true;
1440
1441                         if (*i == '+')
1442                         {
1443                                 if ((direction != 1) && (next_ok))
1444                                 {
1445                                         next_ok = false;
1446                                         charlcat(outpars,'+',MAXBUF);
1447                                 }
1448                                 direction = 1;
1449                         }
1450                         else
1451                         if (*i == '-')
1452                         {
1453                                 if ((direction != 0) && (next_ok))
1454                                 {
1455                                         next_ok = false;
1456                                         charlcat(outpars,'-',MAXBUF);
1457                                 }
1458                                 direction = 0;
1459                         }
1460                         else
1461                         {
1462                                 log(DEBUG,"begin mode processing entry");
1463                                 can_change = 1;
1464                                 if (can_change)
1465                                 {
1466                                         if (direction == 1)
1467                                         {
1468                                                 log(DEBUG,"umode %c being added",*i);
1469                                                 if ((!strchr(dmodes,*i)) && (ServerInstance->ModeGrok->AllowedUmode(*i,user->modes,true,true)))
1470                                                 {
1471                                                         log(DEBUG,"umode %c is an allowed umode",*i);
1472                                                         if ((ServerInstance->ModeGrok->ProcessModuleUmode(*i, user, dest, direction)) || (*i == 'i') || (*i == 's') || (*i == 'w') || (*i == 'o'))
1473                                                         {
1474                                                                 charlcat(dmodes,*i,MAXMODES);
1475                                                                 charlcat(outpars,*i,MAXMODES);
1476                                                         }
1477                                                 }
1478                                         }
1479                                         else
1480                                         {
1481                                                 // can only remove a mode they already have
1482                                                 log(DEBUG,"umode %c being removed",*i);
1483                                                 if ((ServerInstance->ModeGrok->AllowedUmode(*i,user->modes,false,true)) && (strchr(dmodes,*i)))
1484                                                 {
1485                                                         log(DEBUG,"umode %c is an allowed umode",*i);
1486                                                         if ((ServerInstance->ModeGrok->ProcessModuleUmode(*i, user, dest, direction)) || (*i == 'i') || (*i == 's') || (*i == 'w') || (*i == 'o'))
1487                                                         {
1488                                                                 charlcat(outpars,*i,MAXMODES);
1489                                                                 charremove(dmodes,*i);
1490                                                         }
1491                                                 }
1492                                         }
1493                                 }
1494                         }
1495                 }
1496                 if (*outpars)
1497                 {
1498                         char b[MAXBUF];
1499                         char* z = b;
1500
1501                         for (char* i = outpars; *i;)
1502                         {
1503                                 *z++ = *i++;
1504                                 if (((*i == '-') || (*i == '+')) && ((*(i+1) == '-') || (*(i+1) == '+')))
1505                                 {
1506                                         // someones playing silly buggers and trying
1507                                         // to put a +- or -+ into the line...
1508                                         i++;
1509                                 }
1510                                 if (!*(i+1))
1511                                 {
1512                                         // Someone's trying to make the last character in
1513                                         // the line be a + or - symbol.
1514                                         if ((*i == '-') || (*i == '+'))
1515                                         {
1516                                                 i++;
1517                                         }
1518                                 }
1519                         }
1520                         *z = 0;
1521
1522                         if ((*b) && (!IS_SINGLE(b,'+')) && (!IS_SINGLE(b,'-')))
1523                         {
1524                                 WriteTo(user, dest, "MODE %s :%s", dest->nick, b);
1525                                 FOREACH_MOD(I_OnMode,OnMode(user, dest, TYPE_USER, b));
1526                         }
1527
1528                         log(DEBUG,"Stripped mode line");
1529                         log(DEBUG,"Line dest is now %s",dmodes);
1530                         strlcpy(dest->modes,dmodes,MAXMODES-1);
1531
1532                 }
1533
1534                 return;
1535         }
1536
1537         Ptr = FindChan(parameters[0]);
1538         if (Ptr)
1539         {
1540                 ServerInstance->ModeGrok->ProcessModes(parameters,user,Ptr,STATUS_OP,pcnt,true,false,false);
1541         }
1542         else
1543         {
1544                 WriteServ(user->fd,"401 %s %s :No such nick/channel",user->nick, parameters[0]);
1545         }
1546 }