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 "configreader.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 #include "modes/cmode_s.h"
  50
  51 extern int MODCOUNT;
  52 extern std::vector<Module*> modules;
  53 extern std::vector<ircd_module*> factory;
  54 extern InspIRCd* ServerInstance;
  55 extern ServerConfig* Config;
  56
  57 extern time_t TIME;
  58
  59 ModeHandler::ModeHandler(char modeletter, int parameters_on, int parameters_off, bool listmode, ModeType type, bool operonly) : mode(modeletter), n_params_on(parameters_on), n_params_off(parameters_off), list(listmode), m_type(type), oper(operonly)
  60 {
  61 }
  62
  63 ModeHandler::~ModeHandler()
  64 {
  65 }
  66
  67 bool ModeHandler::IsListMode()
  68 {
  69         return list;
  70 }
  71
  72 ModeType ModeHandler::GetModeType()
  73 {
  74         return m_type;
  75 }
  76
  77 bool ModeHandler::NeedsOper()
  78 {
  79         return oper;
  80 }
  81
  82 int ModeHandler::GetNumParams(bool adding)
  83 {
  84         return adding ? n_params_on : n_params_off;
  85 }
  86
  87 char ModeHandler::GetModeChar()
  88 {
  89         return mode;
  90 }
  91
  92 ModeAction ModeHandler::OnModeChange(userrec* source, userrec* dest, chanrec* channel, std::string &parameter, bool adding)
  93 {
  94         return MODEACTION_DENY;
  95 }
  96
  97 void ModeHandler::DisplayList(userrec* user, chanrec* channel)
  98 {
  99 }
 100
 101 bool ModeHandler::CheckTimeStamp(time_t theirs, time_t ours, const std::string &their_param, const std::string &our_param, chanrec* channel)
 102 {
 103         return (ours < theirs);
 104 }
 105
 106 ModeWatcher::ModeWatcher(char modeletter, ModeType type) : mode(modeletter), m_type(type)
 107 {
 108 }
 109
 110 ModeWatcher::~ModeWatcher()
 111 {
 112 }
 113
 114 char ModeWatcher::GetModeChar()
 115 {
 116         return mode;
 117 }
 118
 119 ModeType ModeWatcher::GetModeType()
 120 {
 121         return m_type;
 122 }
 123
 124 bool ModeWatcher::BeforeMode(userrec* source, userrec* dest, chanrec* channel, std::string &parameter, bool adding, ModeType type)
 125 {
 126         return true;
 127 }
 128
 129 void ModeWatcher::AfterMode(userrec* source, userrec* dest, chanrec* channel, const std::string &parameter, bool adding, ModeType type)
 130 {
 131 }
 132
 133 userrec* ModeParser::SanityChecks(userrec *user,char *dest,chanrec *chan,int status)
 134 {
 135         userrec *d;
 136         if ((!user) || (!dest) || (!chan) || (!*dest))
 137         {
 138                 return NULL;
 139         }
 140         d = Find(dest);
 141         if (!d)
 142         {
 143                 WriteServ(user->fd,"401 %s %s :No such nick/channel",user->nick, dest);
 144                 return NULL;
 145         }
 146         return d;
 147 }
 148
 149 char* ModeParser::Grant(userrec *d,chanrec *chan,int MASK)
 150 {
 151         if (!chan)
 152                 return NULL;
 153
 154         for (std::vector<ucrec*>::const_iterator i = d->chans.begin(); i != d->chans.end(); i++)
 155         {
 156                 if (((ucrec*)(*i))->channel == chan)
 157                 {
 158                         if (((ucrec*)(*i))->uc_modes & MASK)
 159                         {
 160                                 return NULL;
 161                         }
 162                         ((ucrec*)(*i))->uc_modes = ((ucrec*)(*i))->uc_modes | MASK;
 163                         switch (MASK)
 164                         {
 165                                 case UCMODE_OP:
 166                                         ((ucrec*)(*i))->channel->AddOppedUser(d);
 167                                 break;
 168                                 case UCMODE_HOP:
 169                                         ((ucrec*)(*i))->channel->AddHalfoppedUser(d);
 170                                 break;
 171                                 case UCMODE_VOICE:
 172                                         ((ucrec*)(*i))->channel->AddVoicedUser(d);
 173                                 break;
 174                         }
 175                         log(DEBUG,"grant: %s %s",((ucrec*)(*i))->channel->name,d->nick);
 176                         return d->nick;
 177                 }
 178         }
 179         return NULL;
 180 }
 181
 182 char* ModeParser::Revoke(userrec *d,chanrec *chan,int MASK)
 183 {
 184         if (!chan)
 185                 return NULL;
 186
 187         for (std::vector<ucrec*>::const_iterator i = d->chans.begin(); i != d->chans.end(); i++)
 188         {
 189                 if (((ucrec*)(*i))->channel == chan)
 190                 {
 191                         if ((((ucrec*)(*i))->uc_modes & MASK) == 0)
 192                         {
 193                                 return NULL;
 194                         }
 195                         ((ucrec*)(*i))->uc_modes ^= MASK;
 196                         switch (MASK)
 197                         {
 198                                 case UCMODE_OP:
 199                                         ((ucrec*)(*i))->channel->DelOppedUser(d);
 200                                 break;
 201                                 case UCMODE_HOP:
 202                                         ((ucrec*)(*i))->channel->DelHalfoppedUser(d);
 203                                 break;
 204                                 case UCMODE_VOICE:
 205                                         ((ucrec*)(*i))->channel->DelVoicedUser(d);
 206                                 break;
 207                         }
 208                         log(DEBUG,"revoke: %s %s",((ucrec*)(*i))->channel->name,d->nick);
 209                         return d->nick;
 210                 }
 211         }
 212         return NULL;
 213 }
 214
 215 char* ModeParser::GiveOps(userrec *user,char *dest,chanrec *chan,int status)
 216 {
 217         userrec *d = this->SanityChecks(user,dest,chan,status);
 218
 219         if (d)
 220         {
 221                 if (IS_LOCAL(user))
 222                 {
 223                         int MOD_RESULT = 0;
 224                         FOREACH_RESULT(I_OnAccessCheck,OnAccessCheck(user,d,chan,AC_OP));
 225
 226                         if (MOD_RESULT == ACR_DENY)
 227                                 return NULL;
 228                         if (MOD_RESULT == ACR_DEFAULT)
 229                         {
 230                                 if ((status < STATUS_OP) && (!is_uline(user->server)))
 231                                 {
 232                                         WriteServ(user->fd,"482 %s %s :You're not a channel operator",user->nick, chan->name);
 233                                         return NULL;
 234                                 }
 235                         }
 236                 }
 237
 238                 return this->Grant(d,chan,UCMODE_OP);
 239         }
 240         return NULL;
 241 }
 242
 243 char* ModeParser::GiveHops(userrec *user,char *dest,chanrec *chan,int status)
 244 {
 245         userrec *d = this->SanityChecks(user,dest,chan,status);
 246
 247         if (d)
 248         {
 249                 if (IS_LOCAL(user))
 250                 {
 251                         int MOD_RESULT = 0;
 252                         FOREACH_RESULT(I_OnAccessCheck,OnAccessCheck(user,d,chan,AC_HALFOP));
 253
 254                         if (MOD_RESULT == ACR_DENY)
 255                                 return NULL;
 256                         if (MOD_RESULT == ACR_DEFAULT)
 257                         {
 258                                 if ((status < STATUS_OP) && (!is_uline(user->server)))
 259                                 {
 260                                         WriteServ(user->fd,"482 %s %s :You're not a channel operator",user->nick, chan->name);
 261                                         return NULL;
 262                                 }
 263                         }
 264                 }
 265
 266                 return this->Grant(d,chan,UCMODE_HOP);
 267         }
 268         return NULL;
 269 }
 270
 271 char* ModeParser::GiveVoice(userrec *user,char *dest,chanrec *chan,int status)
 272 {
 273         userrec *d = this->SanityChecks(user,dest,chan,status);
 274
 275         if (d)
 276         {
 277                 if (IS_LOCAL(user))
 278                 {
 279                         int MOD_RESULT = 0;
 280                         FOREACH_RESULT(I_OnAccessCheck,OnAccessCheck(user,d,chan,AC_VOICE));
 281
 282                         if (MOD_RESULT == ACR_DENY)
 283                                 return NULL;
 284                         if (MOD_RESULT == ACR_DEFAULT)
 285                         {
 286                                 if ((status < STATUS_HOP) && (!is_uline(user->server)))
 287                                 {
 288                                         WriteServ(user->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel",user->nick, chan->name);
 289                                         return NULL;
 290                                 }
 291                         }
 292                 }
 293
 294                 return this->Grant(d,chan,UCMODE_VOICE);
 295         }
 296         return NULL;
 297 }
 298
 299 char* ModeParser::TakeOps(userrec *user,char *dest,chanrec *chan,int status)
 300 {
 301         userrec *d = this->SanityChecks(user,dest,chan,status);
 302
 303         if (d)
 304         {
 305                 if (IS_LOCAL(user))
 306                 {
 307                         int MOD_RESULT = 0;
 308                         FOREACH_RESULT(I_OnAccessCheck,OnAccessCheck(user,d,chan,AC_DEOP));
 309
 310                         if (MOD_RESULT == ACR_DENY)
 311                                 return NULL;
 312                         if (MOD_RESULT == ACR_DEFAULT)
 313                         {
 314                                 if ((status < STATUS_OP) && (!is_uline(user->server)) && (IS_LOCAL(user)))
 315                                 {
 316                                         WriteServ(user->fd,"482 %s %s :You are not a channel operator",user->nick, chan->name);
 317                                         return NULL;
 318                                 }
 319                         }
 320                 }
 321
 322                 return this->Revoke(d,chan,UCMODE_OP);
 323         }
 324         return NULL;
 325 }
 326
 327 char* ModeParser::TakeHops(userrec *user,char *dest,chanrec *chan,int status)
 328 {
 329         userrec *d = this->SanityChecks(user,dest,chan,status);
 330
 331         if (d)
 332         {
 333                 if (IS_LOCAL(user))
 334                 {
 335                         int MOD_RESULT = 0;
 336                         FOREACH_RESULT(I_OnAccessCheck,OnAccessCheck(user,d,chan,AC_DEHALFOP));
 337
 338                         if (MOD_RESULT == ACR_DENY)
 339                                 return NULL;
 340                         if (MOD_RESULT == ACR_DEFAULT)
 341                         {
 342                                 /* Tweak by Brain suggested by w00t, allow a halfop to dehalfop themselves */
 343                                 if ((user != d) && ((status < STATUS_OP) && (!is_uline(user->server))))
 344                                 {
 345                                         WriteServ(user->fd,"482 %s %s :You are not a channel operator",user->nick, chan->name);
 346                                         return NULL;
 347                                 }
 348                         }
 349                 }
 350
 351                 return this->Revoke(d,chan,UCMODE_HOP);
 352         }
 353         return NULL;
 354 }
 355
 356 char* ModeParser::TakeVoice(userrec *user,char *dest,chanrec *chan,int status)
 357 {
 358         userrec *d = this->SanityChecks(user,dest,chan,status);
 359
 360         if (d)
 361         {
 362                 if (IS_LOCAL(user))
 363                 {
 364                         int MOD_RESULT = 0;
 365                         FOREACH_RESULT(I_OnAccessCheck,OnAccessCheck(user,d,chan,AC_DEVOICE));
 366
 367                         if (MOD_RESULT == ACR_DENY)
 368                                 return NULL;
 369                         if (MOD_RESULT == ACR_DEFAULT)
 370                         {
 371                                 if ((status < STATUS_HOP) && (!is_uline(user->server)))
 372                                 {
 373                                         WriteServ(user->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel",user->nick, chan->name);
 374                                         return NULL;
 375                                 }
 376                         }
 377                 }
 378
 379                 return this->Revoke(d,chan,UCMODE_VOICE);
 380         }
 381         return NULL;
 382 }
 383
 384 char* ModeParser::AddBan(userrec *user,char *dest,chanrec *chan,int status)
 385 {
 386         BanItem b;
 387         int toomanyexclamation = 0;
 388         int toomanyat = 0;
 389
 390         if ((!user) || (!dest) || (!chan) || (!*dest))
 391         {
 392                 log(DEFAULT,"*** BUG *** AddBan was given an invalid parameter");
 393                 return NULL;
 394         }
 395
 396         for (char* i = dest; *i; i++)
 397         {
 398                 if ((*i < 32) || (*i > 126))
 399                 {
 400                         return NULL;
 401                 }
 402                 else if (*i == '!')
 403                 {
 404                         toomanyexclamation++;
 405                 }
 406                 else if (*i == '@')
 407                 {
 408                         toomanyat++;
 409                 }
 410         }
 411
 412         if (toomanyexclamation != 1 || toomanyat != 1)
 413                 /*
 414                  * this stops sillyness like n!u!u!u@h, though note that most
 415                  * ircds don't actually verify banmask validity. --w00t
 416                  */
 417                 return NULL;
 418
 419         long maxbans = GetMaxBans(chan->name);
 420         if ((unsigned)chan->bans.size() > (unsigned)maxbans)
 421         {
 422                 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);
 423                 return NULL;
 424         }
 425
 426         log(DEBUG,"AddBan: %s %s",chan->name,user->nick);
 427
 428         int MOD_RESULT = 0;
 429         FOREACH_RESULT(I_OnAddBan,OnAddBan(user,chan,dest));
 430         if (MOD_RESULT)
 431                 return NULL;
 432
 433         TidyBan(dest);
 434         for (BanList::iterator i = chan->bans.begin(); i != chan->bans.end(); i++)
 435         {
 436                 if (!strcasecmp(i->data,dest))
 437                 {
 438                         // dont allow a user to set the same ban twice
 439                         return NULL;
 440                 }
 441         }
 442
 443         b.set_time = TIME;
 444         strlcpy(b.data,dest,MAXBUF);
 445         if (*user->nick)
 446         {
 447                 strlcpy(b.set_by,user->nick,NICKMAX-1);
 448         }
 449         else
 450         {
 451                 strlcpy(b.set_by,Config->ServerName,NICKMAX-1);
 452         }
 453         chan->bans.push_back(b);
 454         return dest;
 455 }
 456
 457 char* ModeParser::TakeBan(userrec *user,char *dest,chanrec *chan,int status)
 458 {
 459         if ((!user) || (!dest) || (!chan) || (!*dest)) {
 460                 log(DEFAULT,"*** BUG *** TakeBan was given an invalid parameter");
 461                 return 0;
 462         }
 463
 464         log(DEBUG,"del_ban: %s %s",chan->name,user->nick);
 465         for (BanList::iterator i = chan->bans.begin(); i != chan->bans.end(); i++)
 466         {
 467                 if (!strcasecmp(i->data,dest))
 468                 {
 469                         int MOD_RESULT = 0;
 470                         FOREACH_RESULT(I_OnDelBan,OnDelBan(user,chan,dest));
 471                         if (MOD_RESULT)
 472                                 return NULL;
 473                         chan->bans.erase(i);
 474                         return dest;
 475                 }
 476         }
 477         return NULL;
 478 }
 479
 480 void ModeParser::Process(char **parameters, int pcnt, userrec *user, bool servermode)
 481 {
 482         std::string target = parameters[0];
 483         ModeType type = MODETYPE_USER;
 484         chanrec* targetchannel = FindChan(parameters[0]);
 485         userrec* targetuser  = Find(parameters[0]);
 486
 487         if (pcnt > 1)
 488         {
 489                 if (targetchannel)
 490                 {
 491                         type = MODETYPE_CHANNEL;
 492                 }
 493                 else if (targetuser)
 494                 {
 495                         type = MODETYPE_USER;
 496                 }
 497                 else
 498                 {
 499                         /* No such nick/channel */
 500                         return;
 501                 }
 502                 std::string mode_sequence = parameters[1];
 503                 std::string parameter = "";
 504                 std::ostringstream parameter_list;
 505                 std::string output_sequence = "";
 506                 bool adding = true, state_change = false;
 507                 int handler_id = 0;
 508                 int parameter_counter = 2; /* Index of first parameter */
 509
 510                 for (std::string::const_iterator modeletter = mode_sequence.begin(); modeletter != mode_sequence.end(); modeletter++)
 511                 {
 512                         switch (*modeletter)
 513                         {
 514                                 /* NB:
 515                                  * For + and - mode characters, we don't just stick the character into the output sequence.
 516                                  * This is because the user may do something dumb, like: +-+ooo or +oo-+. To prevent this
 517                                  * appearing in the output sequence, we store a flag which says there was a state change,
 518                                  * which is set on any + or -, however, the + or - that we finish on is only appended to
 519                                  * the output stream in the event it is followed by a non "+ or -" character, such as o or v.
 520                                  */
 521                                 case '+':
 522                                         /* The following expression prevents: +o+o nick nick, compressing it to +oo nick nick,
 523                                          * however, will allow the + if it is the first item in the sequence, regardless.
 524                                          */
 525                                         if ((!adding) || (!output_sequence.length()))
 526                                                 state_change = true;
 527                                         adding = true;
 528                                         continue;
 529                                 break;
 530                                 case '-':
 531                                         if ((adding) || (!output_sequence.length()))
 532                                                 state_change = true;
 533                                         adding = false;
 534                                         continue;
 535                                 break;
 536                                 default:
 537
 538                                         /* 65 is the ascii value of 'A' */
 539                                         handler_id = *modeletter - 65;
 540
 541                                         if (modehandlers[handler_id])
 542                                         {
 543                                                 bool abort = false;
 544                                                 for (ModeWatchIter watchers = modewatchers[handler_id].begin(); watchers != modewatchers[handler_id].end(); watchers++)
 545                                                 {
 546                                                         if ((*watchers)->BeforeMode(user, targetuser, targetchannel, parameter, adding, type) == MODEACTION_DENY)
 547                                                                 abort = true;
 548                                                 }
 549                                                 if ((modehandlers[handler_id]->GetModeType() == type) && (!abort))
 550                                                 {
 551                                                         if (modehandlers[handler_id]->GetNumParams(adding))
 552                                                         {
 553                                                                 if (pcnt < parameter_counter)
 554                                                                 {
 555                                                                         parameter = parameters[parameter_counter++];
 556                                                                 }
 557                                                                 else
 558                                                                 {
 559                                                                         parameter = "";
 560                                                                 }
 561                                                         }
 562                                                         ModeAction ma = modehandlers[handler_id]->OnModeChange(user, targetuser, targetchannel, parameter, adding);
 563                                                         if (ma == MODEACTION_ALLOW)
 564                                                         {
 565                                                                 /* We're about to output a valid mode letter - was there previously a pending state-change? */
 566                                                                 if (state_change)
 567                                                                         output_sequence.append(adding ? "+" : "-");
 568
 569                                                                 /* Add the mode letter */
 570                                                                 output_sequence = output_sequence + *modeletter;
 571
 572                                                                 /* Is there a valid parameter for this mode? If so add it to the parameter list */
 573                                                                 if ((modehandlers[handler_id]->GetNumParams(adding)) && (parameter != ""))
 574                                                                 {
 575                                                                         parameter_list << " " << parameter;
 576                                                                 }
 577
 578                                                                 /* Call all the AfterMode events in the mode watchers for this mode */
 579                                                                 for (ModeWatchIter watchers = modewatchers[handler_id].begin(); watchers != modewatchers[handler_id].end(); watchers++)
 580                                                                 {
 581                                                                         (*watchers)->AfterMode(user, targetuser, targetchannel, parameter, adding, type);
 582                                                                 }
 583
 584                                                                 /* Reset the state change flag */
 585                                                                 state_change = false;
 586                                                         }
 587                                                 }
 588                                         }
 589                                 break;
 590                         }
 591                 }
 592                 /* Was there at least one valid mode in the sequence? */
 593                 if (output_sequence != "")
 594                 {
 595                         if (servermode)
 596                         {
 597                                 if (type == MODETYPE_CHANNEL)
 598                                 {
 599                                         WriteChannelWithServ(Config->ServerName,targetchannel,"MODE %s %s%s",targetchannel->name,output_sequence.c_str(),parameter_list.str().c_str());
 600                                 }
 601                         }
 602                         else
 603                         {
 604                                 if (type == MODETYPE_CHANNEL)
 605                                 {
 606                                         WriteChannel(targetchannel,user,"MODE %s %s%s",targetchannel->name,output_sequence.c_str(),parameter_list.str().c_str());
 607                                         FOREACH_MOD(I_OnMode,OnMode(user, targetchannel, TYPE_CHANNEL, output_sequence + parameter_list.str()));
 608                                 }
 609                         }
 610                 }
 611         }
 612 }
 613
 614 std::string ModeParser::CompressModes(std::string modes,bool channelmodes)
 615 {
 616         return "";
 617 }
 618
 619 void ModeParser::ProcessModes(char **parameters,userrec* user,chanrec *chan,int status, int pcnt, bool servermode, bool silent, bool local)
 620 {
 621         if ((!parameters) || (pcnt < 2)) {
 622                 return;
 623         }
 624
 625         char outlist[MAXBUF];
 626         char mlist[MAXBUF];
 627         char *outpars[32];
 628         int param = 2;
 629         int pc = 0;
 630         int ptr = 0;
 631         int mdir = 1;
 632         char* r = NULL;
 633         bool k_set = false, l_set = false, previously_set_l = false, previously_unset_l = false, previously_set_k = false, previously_unset_k = false;
 634
 635         int MOD_RESULT = 0;
 636
 637         if (IS_LOCAL(user))
 638         {
 639                 FOREACH_RESULT(I_OnAccessCheck,OnAccessCheck(user,NULL,chan,AC_GENERAL_MODE));
 640                 if (MOD_RESULT == ACR_DENY)
 641                         return;
 642         }
 643
 644         std::string tidied = this->CompressModes(parameters[1],true);
 645         strlcpy(mlist,tidied.c_str(),MAXBUF);
 646         char* modelist = mlist;
 647
 648         *outlist = *modelist;
 649         char* outl = outlist+1;
 650
 651         mdir = (*modelist == '+');
 652
 653         log(DEBUG,"process_modes: modelist: %s",modelist);
 654
 655         int len = tidied.length();
 656         while (modelist[len-1] == ' ')
 657                 modelist[--len] = '\0';
 658
 659         for (char* modechar = (modelist + 1); *modechar; ptr++, modechar++)
 660         {
 661                 r = NULL;
 662
 663                 /* If we have more than MAXMODES changes in one line,
 664                  * drop all after the MAXMODES
 665                  */
 666                 if (pc > MAXMODES-1)
 667                         break;
 668
 669
 670
 671                 switch (*modechar)
 672                 {
 673                         case '-':
 674                                 *outl++ = '-';
 675                                 mdir = 0;
 676                         break;
 677
 678                         case '+':
 679                                 *outl++ = '+';
 680                                 mdir = 1;
 681                         break;
 682
 683                         case 'o':
 684                                 log(DEBUG,"Ops");
 685                                 if ((param >= pcnt)) break;
 686                                 log(DEBUG,"Enough parameters left");
 687                                 r = NULL;
 688                                 if (mdir == 1)
 689                                 {
 690                                         MOD_RESULT = 0;
 691                                         FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'o', parameters[param], true, 1));
 692                                         if (!MOD_RESULT)
 693                                         {
 694                                                 r = GiveOps(user,parameters[param++],chan,status);
 695                                         }
 696                                         else param++;
 697                                 }
 698                                 else
 699                                 {
 700                                         MOD_RESULT = 0;
 701                                         FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'o', parameters[param], false, 1));
 702                                         if (!MOD_RESULT)
 703                                         {
 704                                                 r = TakeOps(user,parameters[param++],chan,status);
 705                                         }
 706                                         else param++;
 707                                 }
 708                                 if (r)
 709                                 {
 710                                         *outl++ = 'o';
 711                                         outpars[pc++] = r;
 712                                 }
 713                         break;
 714
 715                         case 'h':
 716                                 if (((param >= pcnt)) || (!Config->AllowHalfop)) break;
 717                                 r = NULL;
 718                                 if (mdir == 1)
 719                                 {
 720                                         MOD_RESULT = 0;
 721                                         FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'h', parameters[param], true, 1));
 722                                         if (!MOD_RESULT)
 723                                         {
 724                                                 r = GiveHops(user,parameters[param++],chan,status);
 725                                         }
 726                                         else param++;
 727                                 }
 728                                 else
 729                                 {
 730                                         MOD_RESULT = 0;
 731                                         FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'h', parameters[param], false, 1));
 732                                         if (!MOD_RESULT)
 733                                         {
 734                                                 r = TakeHops(user,parameters[param++],chan,status);
 735                                         }
 736                                         else param++;
 737                                 }
 738                                 if (r)
 739                                 {
 740                                         *outl++ = 'h';
 741                                         outpars[pc++] = r;
 742                                 }
 743                         break;
 744
 745
 746                         case 'v':
 747                                         if ((param >= pcnt)) break;
 748                                         r = NULL;
 749                                         if (mdir == 1)
 750                                         {
 751                                                 MOD_RESULT = 0;
 752                                                 FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'v', parameters[param], true, 1));
 753                                                 if (!MOD_RESULT)
 754                                                 {
 755                                                         r = GiveVoice(user,parameters[param++],chan,status);
 756                                                 }
 757                                                 else param++;
 758                                         }
 759                                         else
 760                                         {
 761                                                 MOD_RESULT = 0;
 762                                                 FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'v', parameters[param], false, 1));
 763                                                 if (!MOD_RESULT)
 764                                                 {
 765                                                         r = TakeVoice(user,parameters[param++],chan,status);
 766                                                 }
 767                                                 else param++;
 768                                         }
 769                                         if (r)
 770                                         {
 771                                                 *outl++ = 'v';
 772                                                 outpars[pc++] = r;
 773                                         }
 774                         break;
 775
 776                         case 'b':
 777                                 if ((param >= pcnt)) break;
 778                                 r = NULL;
 779                                 if (mdir == 1)
 780                                 {
 781                                         MOD_RESULT = 0;
 782                                         FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'b', parameters[param], true, 1));
 783                                         if (!MOD_RESULT)
 784                                         {
 785                                                 r = AddBan(user,parameters[param++],chan,status);
 786                                         }
 787                                         else param++;
 788                                 }
 789                                 else
 790                                 {
 791                                         MOD_RESULT = 0;
 792                                         FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'b', parameters[param], false, 1));
 793                                         if (!MOD_RESULT)
 794                                         {
 795                                                 r = TakeBan(user,parameters[param++],chan,status);
 796                                         }
 797                                         else param++;
 798                                 }
 799                                 if (r)
 800                                 {
 801                                         *outl++ = 'b';
 802                                         outpars[pc++] = parameters[param-1];
 803                                 }
 804                         break;
 805
 806
 807                         case 'k':
 808                                 if ((param >= pcnt))
 809                                         break;
 810
 811                                 if (mdir == 1)
 812                                 {
 813                                         if (k_set)
 814                                                 break;
 815
 816                                         if (previously_unset_k)
 817                                                 break;
 818                                         previously_set_k = true;
 819
 820                                         if (!chan->modes[CM_KEY])
 821                                         {
 822                                                 MOD_RESULT = 0;
 823                                                 FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'k', parameters[param], true, 1));
 824                                                 if (!MOD_RESULT)
 825                                                 {
 826                                                         *outl++ = 'k';
 827                                                         char key[MAXBUF];
 828                                                         strlcpy(key,parameters[param++],32);
 829                                                         outpars[pc++] = key;
 830                                                         strlcpy(chan->key,key,MAXBUF);
 831                                                         chan->modes[CM_KEY] = 1;
 832                                                         k_set = true;
 833                                                 }
 834                                                 else param++;
 835                                         }
 836                                 }
 837                                 else
 838                                 {
 839                                         /* checks on -k are case sensitive and only accurate to the
 840                                                    first 32 characters */
 841                                         if (previously_set_k)
 842                                                 break;
 843                                         previously_unset_k = true;
 844
 845                                         char key[MAXBUF];
 846                                         MOD_RESULT = 0;
 847                                         FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'k', parameters[param], false, 1));
 848                                         if (!MOD_RESULT)
 849                                         {
 850                                                 strlcpy(key,parameters[param++],32);
 851                                                 /* only allow -k if correct key given */
 852                                                 if (!strcmp(chan->key,key))
 853                                                 {
 854                                                         *outl++ = 'k';
 855                                                         *chan->key = 0;
 856                                                         chan->modes[CM_KEY] = 0;
 857                                                         outpars[pc++] = key;
 858                                                 }
 859                                         }
 860                                         else param++;
 861                                 }
 862                         break;
 863
 864                         case 'l':
 865                                 if (mdir == 0)
 866                                 {
 867                                         if (previously_set_l)
 868                                                 break;
 869                                         previously_unset_l = true;
 870                                         MOD_RESULT = 0;
 871                                         FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'l', "", false, 0));
 872                                         if (!MOD_RESULT)
 873                                         {
 874                                                 if (chan->modes[CM_LIMIT])
 875                                                 {
 876                                                         *outl++ = 'l';
 877                                                         chan->limit = 0;
 878                                                         chan->modes[CM_LIMIT] = 0;
 879                                                 }
 880                                         }
 881                                 }
 882
 883                                 if ((param >= pcnt)) break;
 884                                 if (mdir == 1)
 885                                 {
 886                                         if (l_set)
 887                                                 break;
 888                                         if (previously_unset_l)
 889                                                 break;
 890                                         previously_set_l = true;
 891                                         bool invalid = false;
 892                                         for (char* f = parameters[param]; *f; f++)
 893                                         {
 894                                                 if ((*f < '0') || (*f > '9'))
 895                                                 {
 896                                                         invalid = true;
 897                                                 }
 898                                         }
 899                                         /* If the limit is < 1, or the new limit is the current limit, dont allow */
 900                                         if ((atoi(parameters[param]) < 1) || ((chan->limit > 0) && (atoi(parameters[param]) == chan->limit)))
 901                                         {
 902                                                 invalid = true;
 903                                         }
 904
 905                                         if (invalid)
 906                                                 break;
 907
 908                                         MOD_RESULT = 0;
 909                                         FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'l', parameters[param], true, 1));
 910                                         if (!MOD_RESULT)
 911                                         {
 912
 913                                                 chan->limit = atoi(parameters[param]);
 914
 915                                                 // reported by mech: large values cause underflow
 916                                                 if (chan->limit < 0)
 917                                                         chan->limit = 0x7FFF;
 918                                         }
 919
 920                                         if (chan->limit)
 921                                         {
 922                                                 *outl++ = 'l';
 923                                                 chan->modes[CM_LIMIT] = 1;
 924                                                 outpars[pc++] = parameters[param++];
 925                                                 l_set = true;
 926                                         }
 927                                 }
 928                         break;
 929
 930                         case 'i':
 931                                 MOD_RESULT = 0;
 932                                 FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'i', "", mdir, 0));
 933                                 if (!MOD_RESULT)
 934                                 {
 935                                         if (mdir)
 936                                         {
 937                                                 if (!(chan->modes[CM_INVITEONLY])) *outl++ = 'i';
 938                                                 chan->modes[CM_INVITEONLY] = 1;
 939                                         }
 940                                         else
 941                                         {
 942                                                 if (chan->modes[CM_INVITEONLY]) *outl++ = 'i';
 943                                                 chan->modes[CM_INVITEONLY] = 0;
 944                                         }
 945                                 }
 946                         break;
 947
 948                         case 't':
 949                                 MOD_RESULT = 0;
 950                                 FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 't', "", mdir, 0));
 951                                 if (!MOD_RESULT)
 952                                 {
 953                                         if (mdir)
 954                                         {
 955                                                 if (!(chan->modes[CM_TOPICLOCK])) *outl++ = 't';
 956                                                 chan->modes[CM_TOPICLOCK] = 1;
 957                                         }
 958                                         else
 959                                         {
 960                                                 if (chan->modes[CM_TOPICLOCK]) *outl++ = 't';
 961                                                 chan->modes[CM_TOPICLOCK] = 0;
 962                                         }
 963                                 }
 964                         break;
 965
 966                         case 'n':
 967                                 MOD_RESULT = 0;
 968                                 FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'n', "", mdir, 0));
 969                                 if (!MOD_RESULT)
 970                                 {
 971                                         if (mdir)
 972                                         {
 973                                                 if (!(chan->modes[CM_NOEXTERNAL])) *outl++ = 'n';
 974                                                 chan->modes[CM_NOEXTERNAL] = 1;
 975                                         }
 976                                         else
 977                                         {
 978                                                 if (chan->modes[CM_NOEXTERNAL]) *outl++ = 'n';
 979                                                 chan->modes[CM_NOEXTERNAL] = 0;
 980                                         }
 981                                 }
 982                         break;
 983
 984                         case 'm':
 985                                 MOD_RESULT = 0;
 986                                 FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'm', "", mdir, 0));
 987                                 if (!MOD_RESULT)
 988                                 {
 989                                         if (mdir)
 990                                         {
 991                                                 if (!(chan->modes[CM_MODERATED])) *outl++ = 'm';
 992                                                 chan->modes[CM_MODERATED] = 1;
 993                                         }
 994                                         else
 995                                         {
 996                                                 if (chan->modes[CM_MODERATED]) *outl++ = 'm';
 997                                                 chan->modes[CM_MODERATED] = 0;
 998                                         }
 999                                 }
1000                         break;
1001
1002                         case 's':
1003                                 MOD_RESULT = 0;
1004                                 FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 's', "", mdir, 0));
1005                                 if (!MOD_RESULT)
1006                                 {
1007                                         if (mdir)
1008                                         {
1009                                                 if (!(chan->modes[CM_SECRET])) *outl++ = 's';
1010                                                 chan->modes[CM_SECRET] = 1;
1011                                                 if (chan->modes[CM_PRIVATE])
1012                                                 {
1013                                                         chan->modes[CM_PRIVATE] = 0;
1014                                                         if (mdir)
1015                                                         {
1016                                                                 *outl++ = '-'; *outl++ = 'p'; *outl++ = '+';
1017                                                         }
1018                                                 }
1019                                         }
1020                                         else
1021                                         {
1022                                                 if (chan->modes[CM_SECRET]) *outl++ = 's';
1023                                                 chan->modes[CM_SECRET] = 0;
1024                                         }
1025                                 }
1026                         break;
1027
1028                         case 'p':
1029                                 MOD_RESULT = 0;
1030                                 FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'p', "", mdir, 0));
1031                                 if(!MOD_RESULT)
1032                                 {
1033                                         if(mdir)
1034                                         {
1035                                                 if(!(chan->modes[CM_PRIVATE]))
1036                                                         *outl++ = 'p';
1037
1038                                                 chan->modes[CM_PRIVATE] = 1;
1039
1040                                                 if(chan->modes[CM_SECRET])
1041                                                 {
1042                                                         chan->modes[CM_SECRET] = 0;
1043
1044                                                         *outl++ = '-';
1045                                                         *outl++ = 's';
1046                                                         *outl++ = '+';
1047                                                 }
1048                                         }
1049                                         else
1050                                         {
1051                                                 if(chan->modes[CM_PRIVATE])
1052                                                         *outl++ = 'p';
1053
1054                                                 chan->modes[CM_PRIVATE] = 0;
1055                                         }
1056                                 }
1057                                 break;
1058
1059                         default:
1060                                 string_list p;
1061                                 p.clear();
1062                                 bool x = chan->modes[*modechar-65];
1063                                 if ((!x && !mdir) || (x && mdir))
1064                                 {
1065                                         if (!ModeIsListMode(*modechar,MT_CHANNEL))
1066                                         {
1067                                                 log(DEBUG,"Mode %c isnt set on %s but trying to remove!",*modechar,chan->name);
1068                                                 break;
1069                                         }
1070                                 }
1071                                 if (ModeDefined(*modechar,MT_CHANNEL))
1072                                 {
1073                                         /* A module has claimed this mode */
1074                                         if (param<pcnt)
1075                                         {
1076                                                 if ((ModeDefinedOn(*modechar,MT_CHANNEL)>0) && (mdir))
1077                                                 {
1078                                                         p.push_back(parameters[param]);
1079                                                 }
1080                                                 if ((ModeDefinedOff(*modechar,MT_CHANNEL)>0) && (!mdir))
1081                                                 {
1082                                                         p.push_back(parameters[param]);
1083                                                 }
1084                                         }
1085                                         bool handled = false;
1086                                         if (param>=pcnt)
1087                                         {
1088                                                 // we're supposed to have a parameter, but none was given... so dont handle the mode.
1089                                                 if (((ModeDefinedOn(*modechar,MT_CHANNEL)>0) && (mdir)) || ((ModeDefinedOff(*modechar,MT_CHANNEL)>0) && (!mdir)))
1090                                                 {
1091                                                         log(DEBUG,"Not enough parameters for module-mode %c",*modechar);
1092                                                         handled = true;
1093                                                         param++;
1094                                                 }
1095                                         }
1096                                         // BIG ASS IDIOTIC CODER WARNING!
1097                                         // Using OnRawMode on another modules mode's behavour
1098                                         // will confuse the crap out of admins! just because you CAN
1099                                         // do it, doesnt mean you SHOULD!
1100                                         MOD_RESULT = 0;
1101                                         std::string para = "";
1102                                         if (p.size())
1103                                                 para = p[0];
1104
1105                                         FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, *modechar, para, mdir, pcnt));
1106                                         if(!MOD_RESULT)
1107                                         {
1108                                                 for (int i = 0; i <= MODCOUNT; i++)
1109                                                 {
1110                                                         if (!handled)
1111                                                         {
1112                                                                 int t = modules[i]->OnExtendedMode(user,chan,*modechar,MT_CHANNEL,mdir,p);
1113                                                                 if (t != 0)
1114                                                                 {
1115                                                                         log(DEBUG,"OnExtendedMode returned nonzero for a module");
1116                                                                         if (ModeIsListMode(*modechar,MT_CHANNEL))
1117                                                                         {
1118                                                                                 if (t == -1)
1119                                                                                 {
1120                                                                                         //pc++;
1121                                                                                         param++;
1122                                                                                 }
1123                                                                                 else
1124                                                                                 {
1125                                                                                         if (param < pcnt)
1126                                                                                         {
1127                                                                                                 *outl++ = *modechar;
1128                                                                                         }
1129                                                                                         outpars[pc++] = parameters[param++];
1130                                                                                 }
1131                                                                         }
1132                                                                         else
1133                                                                         {
1134                                                                                 *outl++ = *modechar;
1135                                                                                 chan->SetCustomMode(*modechar,mdir);
1136                                                                                 // include parameters in output if mode has them
1137                                                                                 if ((ModeDefinedOn(*modechar,MT_CHANNEL)>0) && (mdir))
1138                                                                                 {
1139                                                                                         if (param < pcnt)
1140                                                                                         {
1141                                                                                                 chan->SetCustomModeParam(*modechar,parameters[param],mdir);
1142                                                                                                 outpars[pc++] = parameters[param++];
1143                                                                                         }
1144                                                                                 }
1145                                                                         }
1146                                                                         // break, because only one module can handle the mode.
1147                                                                         handled = true;
1148                                                                 }
1149                                                         }
1150                                                 }
1151                                         }
1152                                 }
1153                                 else
1154                                 {
1155                                         WriteServ(user->fd,"472 %s %c :is unknown mode char to me",user->nick,*modechar);
1156                                 }
1157                         break;
1158                 }
1159         }
1160
1161         /* Null terminate it now we're done */
1162         *outl = 0;
1163
1164
1165         /************ Fast, but confusing string tidying ************/
1166         outl = outlist;
1167         while (*outl && (*outl < 'A'))
1168                 outl++;
1169         /* outl now points to the first mode character after +'s and -'s */
1170         outl--;
1171         /* Now points at first mode-modifier + or - symbol */
1172         char* trim = outl;
1173         /* Now we tidy off any trailing -'s etc */
1174         while (*trim++);
1175         trim--;
1176         while ((*--trim == '+') || (*trim == '-'))
1177                 *trim = 0;
1178         /************ Done wih the string tidy functions ************/
1179
1180
1181         /* The mode change must be at least two characters long (+ or - and at least one mode) */
1182         if (((*outl == '+') || (*outl == '-')) && *(outl+1))
1183         {
1184                 for (ptr = 0; ptr < pc; ptr++)
1185                 {
1186                         charlcat(outl,' ',MAXBUF);
1187                         strlcat(outl,outpars[ptr],MAXBUF-1);
1188                 }
1189                 if (local)
1190                 {
1191                         log(DEBUG,"Local mode change");
1192                         WriteChannelLocal(chan, user, "MODE %s %s",chan->name,outl);
1193                         FOREACH_MOD(I_OnMode,OnMode(user, chan, TYPE_CHANNEL, outl));
1194                 }
1195                 else
1196                 {
1197                         if (servermode)
1198                         {
1199                                 if (!silent)
1200                                 {
1201                                         WriteChannelWithServ(Config->ServerName,chan,"MODE %s %s",chan->name,outl);
1202                                 }
1203
1204                         }
1205                         else
1206                         {
1207                                 if (!silent)
1208                                 {
1209                                         WriteChannel(chan,user,"MODE %s %s",chan->name,outl);
1210                                         FOREACH_MOD(I_OnMode,OnMode(user, chan, TYPE_CHANNEL, outl));
1211                                 }
1212                         }
1213                 }
1214         }
1215 }
1216
1217 // based on sourcemodes, return true or false to determine if umode is a valid mode a user may set on themselves or others.
1218
1219 bool ModeParser::AllowedUmode(char umode, char* sourcemodes,bool adding,bool serveroverride)
1220 {
1221         bool sourceoper = (strchr(sourcemodes,'o') != NULL);
1222         log(DEBUG,"Allowed_umode: %c %s",umode,sourcemodes);
1223         // Servers can +o and -o arbitrarily
1224         if ((serveroverride == true) && (umode == 'o'))
1225         {
1226                 return true;
1227         }
1228         // RFC1459 specified modes
1229         if ((umode == 'w') || (umode == 's') || (umode == 'i'))
1230         {
1231                 /* umode allowed by RFC1459 scemantics */
1232                 return true;
1233         }
1234
1235         /* user may not +o themselves or others, but an oper may de-oper other opers or themselves */
1236         if (sourceoper && !adding)
1237         {
1238                 return true;
1239         }
1240         else if (umode == 'o')
1241         {
1242                 /* Bad oper, bad bad! */
1243                 return false;
1244         }
1245
1246         /* process any module-defined modes that need oper */
1247         if ((ModeDefinedOper(umode,MT_CLIENT)) && (sourceoper))
1248         {
1249                 log(DEBUG,"umode %c allowed by module handler (oper only mode)",umode);
1250                 return true;
1251         }
1252         else if (ModeDefined(umode,MT_CLIENT))
1253         {
1254                 // process any module-defined modes that don't need oper
1255                 log(DEBUG,"umode %c allowed by module handler (non-oper mode)",umode);
1256                 if ((ModeDefinedOper(umode,MT_CLIENT)) && (!sourceoper))
1257                 {
1258                         // no, this mode needs oper, and this user 'aint got what it takes!
1259                         return false;
1260                 }
1261                 return true;
1262         }
1263
1264         // anything else - return false.
1265         log(DEBUG,"umode %c not known by any ruleset",umode);
1266         return false;
1267 }
1268
1269 bool ModeParser::ProcessModuleUmode(char umode, userrec* source, void* dest, bool adding)
1270 {
1271         userrec* s2;
1272         bool faked = false;
1273         if (!source)
1274         {
1275                 s2 = new userrec;
1276                 strlcpy(s2->nick,Config->ServerName,NICKMAX-1);
1277                 *s2->modes = 'o';
1278                 *(s2->modes+1) = 0;
1279                 s2->fd = -1;
1280                 source = s2;
1281                 faked = true;
1282         }
1283         string_list p;
1284         p.clear();
1285         if (ModeDefined(umode,MT_CLIENT))
1286         {
1287                 for (int i = 0; i <= MODCOUNT; i++)
1288                 {
1289                         if (modules[i]->OnExtendedMode(source,(void*)dest,umode,MT_CLIENT,adding,p))
1290                         {
1291                                 log(DEBUG,"Module %s claims umode %c",Config->module_names[i].c_str(),umode);
1292                                 return true;
1293                         }
1294                 }
1295                 log(DEBUG,"No module claims umode %c",umode);
1296                 if (faked)
1297                 {
1298                         DELETE(s2);
1299                         source = NULL;
1300                 }
1301                 return false;
1302         }
1303         else
1304         {
1305                 if (faked)
1306                 {
1307                         DELETE(s2);
1308                         source = NULL;
1309                 }
1310                 return false;
1311         }
1312 }
1313
1314 void cmd_mode::Handle (char **parameters, int pcnt, userrec *user)
1315 {
1316         chanrec* chan;
1317         userrec* dest = Find(parameters[0]);
1318         int MOD_RESULT;
1319         int can_change;
1320         int direction = 1;
1321         char outpars[MAXBUF];
1322         bool next_ok = true;
1323
1324         if (!user)
1325                 return;
1326
1327         if ((dest) && (pcnt == 1))
1328         {
1329                 WriteServ(user->fd,"221 %s :+%s",dest->nick,dest->modes);
1330                 return;
1331         }
1332         else if ((dest) && (pcnt > 1))
1333         {
1334                 std::string tidied = ServerInstance->ModeGrok->CompressModes(parameters[1],false);
1335                 parameters[1] = (char*)tidied.c_str();
1336
1337                 char dmodes[MAXBUF];
1338                 strlcpy(dmodes,dest->modes,MAXMODES);
1339                 log(DEBUG,"pulled up dest user modes: %s",dmodes);
1340
1341                 can_change = 0;
1342                 if (user != dest)
1343                 {
1344                         if ((*user->oper) || (is_uline(user->server)))
1345                         {
1346                                 can_change = 1;
1347                         }
1348                 }
1349                 else
1350                 {
1351                         can_change = 1;
1352                 }
1353                 if (!can_change)
1354                 {
1355                         WriteServ(user->fd,"482 %s :Can't change mode for other users",user->nick);
1356                         return;
1357                 }
1358
1359                 outpars[0] = *parameters[1];
1360                 outpars[1] = 0;
1361                 direction = (*parameters[1] == '+');
1362
1363                 if ((*parameters[1] != '+') && (*parameters[1] != '-'))
1364                         return;
1365
1366                 for (char* i = parameters[1]; *i; i++)
1367                 {
1368                         if ((i != parameters[1]) && (*i != '+') && (*i != '-'))
1369                                 next_ok = true;
1370
1371                         switch (*i)
1372                         {
1373                                 case ' ':
1374                                 continue;
1375
1376                                 case '+':
1377                                         if ((direction != 1) && (next_ok))
1378                                         {
1379                                                 charlcat(outpars,'+',MAXBUF);
1380                                                 next_ok = false;
1381                                         }
1382                                         direction = 1;
1383                                 break;
1384
1385                                 case '-':
1386                                         if ((direction != 0) && (next_ok))
1387                                         {
1388                                                 charlcat(outpars,'-',MAXBUF);
1389                                                 next_ok = false;
1390                                         }
1391                                         direction = 0;
1392                                 break;
1393
1394                                 default:
1395                                         can_change = 0;
1396                                         if (*user->oper)
1397                                         {
1398                                                 can_change = 1;
1399                                         }
1400                                         else
1401                                         {
1402                                                 if ((*i == 'i') || (*i == 'w') || (*i == 's') || (ServerInstance->ModeGrok->AllowedUmode(*i,user->modes,direction,false)))
1403                                                 {
1404                                                         can_change = 1;
1405                                                 }
1406                                         }
1407                                         if (can_change)
1408                                         {
1409                                                 if (direction == 1)
1410                                                 {
1411                                                         if ((!strchr(dmodes,*i)) && (ServerInstance->ModeGrok->AllowedUmode(*i,user->modes,true,false)))
1412                                                         {
1413                                                                 if ((ServerInstance->ModeGrok->ProcessModuleUmode(*i, user, dest, direction)) || (*i == 'i') || (*i == 's') || (*i == 'w') || (*i == 'o'))
1414                                                                 {
1415                                                                         charlcat(dmodes,*i,53);
1416                                                                         charlcat(outpars,*i,MAXMODES);
1417                                                                         switch (*i)
1418                                                                         {
1419                                                                                 case 'o':
1420                                                                                         FOREACH_MOD(I_OnGlobalOper,OnGlobalOper(dest));
1421                                                                                 break;
1422                                                                                 case 'i':
1423                                                                                         dest->modebits |= UM_INVISIBLE;
1424                                                                                 break;
1425                                                                                 case 's':
1426                                                                                         dest->modebits |= UM_SERVERNOTICE;
1427                                                                                 break;
1428                                                                                 case 'w':
1429                                                                                         dest->modebits |= UM_WALLOPS;
1430                                                                                 break;
1431                                                                                 default:
1432                                                                                 break;
1433                                                                         }
1434                                                                 }
1435                                                         }
1436                                                 }
1437                                                 else
1438                                                 {
1439                                                         if ((ServerInstance->ModeGrok->AllowedUmode(*i,user->modes,false,false)) && (strchr(dmodes,*i)))
1440                                                         {
1441                                                                 if ((ServerInstance->ModeGrok->ProcessModuleUmode(*i, user, dest, direction)) || (*i == 'i') || (*i == 's') || (*i == 'w') || (*i == 'o'))
1442                                                                 {
1443                                                                         charlcat(outpars,*i,MAXMODES);
1444                                                                         charremove(dmodes,*i);
1445                                                                         switch (*i)
1446                                                                         {
1447                                                                                 case 'o':
1448                                                                                         *dest->oper = 0;
1449                                                                                         DeleteOper(dest);
1450                                                                                 break;
1451                                                                                 case 'i':
1452                                                                                         dest->modebits &= ~UM_INVISIBLE;
1453                                                                                 break;
1454                                                                                 case 's':
1455                                                                                         dest->modebits &= ~UM_SERVERNOTICE;
1456                                                                                 break;
1457                                                                                 case 'w':
1458                                                                                         dest->modebits &= ~UM_WALLOPS;
1459                                                                                 break;
1460                                                                                 default:
1461                                                                                 break;
1462                                                                         }
1463                                                                 }
1464                                                         }
1465                                                 }
1466                                         }
1467                                 break;
1468                         }
1469                 }
1470                 if (*outpars)
1471                 {
1472                         char b[MAXBUF];
1473                         char* z = b;
1474
1475                         for (char* i = outpars; *i;)
1476                         {
1477                                 *z++ = *i++;
1478                                 if (((*i == '-') || (*i == '+')) && ((*(i+1) == '-') || (*(i+1) == '+')))
1479                                 {
1480                                         // someones playing silly buggers and trying
1481                                         // to put a +- or -+ into the line...
1482                                         i++;
1483                                 }
1484                                 if (!*(i+1))
1485                                 {
1486                                         // Someone's trying to make the last character in
1487                                         // the line be a + or - symbol.
1488                                         if ((*i == '-') || (*i == '+'))
1489                                         {
1490                                                 i++;
1491                                         }
1492                                 }
1493                         }
1494                         *z = 0;
1495
1496                         if ((*b) && (!IS_SINGLE(b,'+')) && (!IS_SINGLE(b,'-')))
1497                         {
1498                                 WriteTo(user, dest, "MODE %s :%s", dest->nick, b);
1499                                 FOREACH_MOD(I_OnMode,OnMode(user, dest, TYPE_USER, b));
1500                         }
1501
1502                         log(DEBUG,"Stripped mode line");
1503                         log(DEBUG,"Line dest is now %s",dmodes);
1504                         strlcpy(dest->modes,dmodes,MAXMODES-1);
1505
1506                 }
1507
1508                 return;
1509         }
1510         else
1511         {
1512                 chan = FindChan(parameters[0]);
1513                 if(chan)
1514                 {
1515                         if (pcnt == 1)
1516                         {
1517                                 /* just /modes #channel */
1518                                 WriteServ(user->fd,"324 %s %s +%s",user->nick, chan->name, chanmodes(chan, chan->HasUser(user)));
1519                                 WriteServ(user->fd,"329 %s %s %d", user->nick, chan->name, chan->created);
1520                                 return;
1521                         }
1522                         else if (pcnt == 2)
1523                         {
1524                                 char* mode = parameters[1];
1525
1526                                 MOD_RESULT = 0;
1527
1528                                 if (*mode == '+')
1529                                         mode++;
1530
1531                                 FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, *mode, "", false, 0));
1532                                 if(!MOD_RESULT)
1533                                 {
1534                                         if (*mode == 'b')
1535                                         {
1536                                                 for (BanList::iterator i = chan->bans.begin(); i != chan->bans.end(); i++)
1537                                                 {
1538                                                         WriteServ(user->fd,"367 %s %s %s %s %d",user->nick, chan->name, i->data, i->set_by, i->set_time);
1539                                                 }
1540                                                 WriteServ(user->fd,"368 %s %s :End of channel ban list",user->nick, chan->name);
1541                                                 return;
1542                                         }
1543
1544                                         if ((ModeDefined(*mode,MT_CHANNEL)) && (ModeIsListMode(*mode,MT_CHANNEL)))
1545                                         {
1546                                                 // list of items for an extmode
1547                                                 log(DEBUG,"Calling OnSendList for all modules, list output for mode %c",*mode);
1548                                                 FOREACH_MOD(I_OnSendList,OnSendList(user,chan,*mode));
1549                                                 return;
1550                                         }
1551                                 }
1552                         }
1553
1554                         if ((IS_LOCAL(user)) && (!is_uline(user->server)) && (!chan->HasUser(user)))
1555                         {
1556                                 WriteServ(user->fd,"442 %s %s :You're not on that channel!",user->nick, chan->name);
1557                                 return;
1558                         }
1559
1560                         MOD_RESULT = 0;
1561                         FOREACH_RESULT(I_OnAccessCheck,OnAccessCheck(user, NULL, chan, AC_GENERAL_MODE));
1562
1563                         if(MOD_RESULT == ACR_DENY)
1564                                 return;
1565
1566                         if(MOD_RESULT == ACR_DEFAULT)
1567                         {
1568                                 if ((IS_LOCAL(user)) && (cstatus(user,chan) < STATUS_HOP))
1569                                 {
1570                                         WriteServ(user->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel",user->nick, chan->name);
1571                                         return;
1572                                 }
1573                         }
1574
1575                         ServerInstance->ModeGrok->ProcessModes(parameters,user,chan,cstatus(user,chan),pcnt,false,false,false);
1576                 }
1577                 else
1578                 {
1579                         WriteServ(user->fd,"401 %s %s :No such nick/channel",user->nick, parameters[0]);
1580                 }
1581         }
1582 }
1583
1584
1585
1586
1587 void ModeParser::ServerMode(char **parameters, int pcnt, userrec *user)
1588 {
1589         chanrec* Ptr;
1590         userrec* dest = Find(parameters[0]);
1591         int can_change;
1592         int direction = 1;
1593         char outpars[MAXBUF];
1594         bool next_ok = true;
1595
1596         if ((dest) && (pcnt > 1))
1597         {
1598                 std::string tidied = ServerInstance->ModeGrok->CompressModes(parameters[1],false);
1599                 parameters[1] = (char*)tidied.c_str();
1600
1601                 char dmodes[MAXBUF];
1602                 strlcpy(dmodes,dest->modes,MAXBUF);
1603
1604                 outpars[0] = *parameters[1];
1605                 outpars[1] = 0;
1606                 direction = (*parameters[1] == '+');
1607
1608                 if ((*parameters[1] != '+') && (*parameters[1] != '-'))
1609                         return;
1610
1611                 for (char* i = parameters[1]; *i; i++)
1612                 {
1613                         if ((i != parameters[1]) && (*i != '+') && (*i != '-'))
1614                                 next_ok = true;
1615
1616                         switch (*i)
1617                         {
1618                                 case ' ':
1619                                 continue;
1620
1621                                 case '+':
1622                                         if ((direction != 1) && (next_ok))
1623                                         {
1624                                                 next_ok = false;
1625                                                 charlcat(outpars,'+',MAXBUF);
1626                                         }
1627                                         direction = 1;
1628                                 break;
1629
1630                                 case '-':
1631                                         if ((direction != 0) && (next_ok))
1632                                         {
1633                                                 next_ok = false;
1634                                                 charlcat(outpars,'-',MAXBUF);
1635                                         }
1636                                         direction = 0;
1637                                 break;
1638
1639                                 default:
1640                                         log(DEBUG,"begin mode processing entry");
1641                                         can_change = 1;
1642                                         if (can_change)
1643                                         {
1644                                                 if (direction == 1)
1645                                                 {
1646                                                         log(DEBUG,"umode %c being added",*i);
1647                                                         if ((!strchr(dmodes,*i)) && (ServerInstance->ModeGrok->AllowedUmode(*i,user->modes,true,true)))
1648                                                         {
1649                                                                 log(DEBUG,"umode %c is an allowed umode",*i);
1650                                                                 if ((*i == 'i') || (*i == 's') || (*i == 'w') || (*i == 'o') || (ServerInstance->ModeGrok->ProcessModuleUmode(*i, user, dest, direction)))
1651                                                                 {
1652                                                                         charlcat(dmodes,*i,MAXBUF);
1653                                                                         charlcat(outpars,*i,53);
1654                                                                         switch (*i)
1655                                                                         {
1656                                                                                 case 'i':
1657                                                                                         dest->modebits |= UM_INVISIBLE;
1658                                                                                 break;
1659                                                                                 case 's':
1660                                                                                         dest->modebits |= UM_SERVERNOTICE;
1661                                                                                 break;
1662                                                                                 case 'w':
1663                                                                                         dest->modebits |= UM_WALLOPS;
1664                                                                                 break;
1665                                                                                 default:
1666                                                                                 break;
1667                                                                         }
1668                                                                 }
1669                                                         }
1670                                                 }
1671                                                 else
1672                                                 {
1673                                                         // can only remove a mode they already have
1674                                                         log(DEBUG,"umode %c being removed",*i);
1675                                                         if ((ServerInstance->ModeGrok->AllowedUmode(*i,user->modes,false,true)) && (strchr(dmodes,*i)))
1676                                                         {
1677                                                                 log(DEBUG,"umode %c is an allowed umode",*i);
1678                                                                 if ((*i == 'i') || (*i == 's') || (*i == 'w') || (*i == 'o') || (ServerInstance->ModeGrok->ProcessModuleUmode(*i, user, dest, direction)))
1679                                                                 {
1680                                                                         charlcat(outpars,*i,MAXBUF);
1681                                                                         charremove(dmodes,*i);
1682                                                                         switch (*i)
1683                                                                         {
1684                                                                                 case 'i':
1685                                                                                         dest->modebits &= ~UM_INVISIBLE;
1686                                                                                 break;
1687                                                                                 case 's':
1688                                                                                         dest->modebits &= ~UM_SERVERNOTICE;
1689                                                                                 break;
1690                                                                                 case 'w':
1691                                                                                         dest->modebits &= ~UM_WALLOPS;
1692                                                                                 break;
1693                                                                                 default:
1694                                                                                 break;
1695                                                                         }
1696                                                                 }
1697                                                         }
1698                                                 }
1699                                         }
1700                                 break;
1701                         }
1702                 }
1703                 if (*outpars)
1704                 {
1705                         char b[MAXBUF];
1706                         char* z = b;
1707
1708                         for (char* i = outpars; *i;)
1709                         {
1710                                 *z++ = *i++;
1711                                 if (((*i == '-') || (*i == '+')) && ((*(i+1) == '-') || (*(i+1) == '+')))
1712                                 {
1713                                         // someones playing silly buggers and trying
1714                                         // to put a +- or -+ into the line...
1715                                         i++;
1716                                 }
1717                                 if (!*(i+1))
1718                                 {
1719                                         // Someone's trying to make the last character in
1720                                         // the line be a + or - symbol.
1721                                         if ((*i == '-') || (*i == '+'))
1722                                         {
1723                                                 i++;
1724                                         }
1725                                 }
1726                         }
1727                         *z = 0;
1728
1729                         if ((*b) && (!IS_SINGLE(b,'+')) && (!IS_SINGLE(b,'-')))
1730                         {
1731                                 WriteTo(user, dest, "MODE %s :%s", dest->nick, b);
1732                                 FOREACH_MOD(I_OnMode,OnMode(user, dest, TYPE_USER, b));
1733                         }
1734
1735                         log(DEBUG,"Stripped mode line");
1736                         log(DEBUG,"Line dest is now %s",dmodes);
1737                         strlcpy(dest->modes,dmodes,MAXMODES-1);
1738
1739                 }
1740
1741                 return;
1742         }
1743
1744         Ptr = FindChan(parameters[0]);
1745         if (Ptr)
1746         {
1747                 ServerInstance->ModeGrok->ProcessModes(parameters,user,Ptr,STATUS_OP,pcnt,true,false,false);
1748         }
1749         else
1750         {
1751                 WriteServ(user->fd,"401 %s %s :No such nick/channel",user->nick, parameters[0]);
1752         }
1753 }
1754
1755 ModeParser::ModeParser()
1756 {
1757         /* Dummy framework, XXX tidyme */
1758         ModeChannelSecret* cmode_s = new ModeChannelSecret();
1759         modehandlers[(unsigned char)'s'] = cmode_s;
1760 }