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 "hash_map.h"
  24 #include "connection.h"
  25 #include "users.h"
  26 #include "modules.h"
  27 #include "inspstring.h"
  28
  29 #include "commands.h"
  30 #include "mode.h"
  31
  32 /* +s (secret) */
  33 #include "modes/cmode_s.h"
  34 /* +p (private) */
  35 #include "modes/cmode_p.h"
  36 /* +b (bans) */
  37 #include "modes/cmode_b.h"
  38 /* +m (moderated) */
  39 #include "modes/cmode_m.h"
  40 /* +t (only (half) ops can change topic) */
  41 #include "modes/cmode_t.h"
  42 /* +n (no external messages) */
  43 #include "modes/cmode_n.h"
  44 /* +i (invite only) */
  45 #include "modes/cmode_i.h"
  46 /* +k (keyed channel) */
  47 #include "modes/cmode_k.h"
  48 /* +l (channel user limit) */
  49 #include "modes/cmode_l.h"
  50 /* +o (channel op) */
  51 #include "modes/cmode_o.h"
  52 /* +h (channel halfop) */
  53 #include "modes/cmode_h.h"
  54 /* +v (channel voice) */
  55 #include "modes/cmode_v.h"
  56
  57 /* +s (server notices) */
  58 #include "modes/umode_s.h"
  59 /* +w (see wallops) */
  60 #include "modes/umode_w.h"
  61 /* +i (invisible) */
  62 #include "modes/umode_i.h"
  63 /* +o (operator) */
  64 #include "modes/umode_o.h"
  65 /* +n (notice mask - our implementation of snomasks) */
  66 #include "modes/umode_n.h"
  67
  68 ModeHandler::ModeHandler(InspIRCd* Instance, char modeletter, int parameters_on, int parameters_off, bool listmode, ModeType type, bool operonly, char mprefix)
  69         : ServerInstance(Instance), mode(modeletter), n_params_on(parameters_on), n_params_off(parameters_off), list(listmode), m_type(type), oper(operonly), prefix(mprefix)
  70 {
  71 }
  72
  73 ModeHandler::~ModeHandler()
  74 {
  75 }
  76
  77 bool ModeHandler::IsListMode()
  78 {
  79         return list;
  80 }
  81
  82 unsigned int ModeHandler::GetPrefixRank()
  83 {
  84         return 0;
  85 }
  86
  87 ModeType ModeHandler::GetModeType()
  88 {
  89         return m_type;
  90 }
  91
  92 bool ModeHandler::NeedsOper()
  93 {
  94         return oper;
  95 }
  96
  97 char ModeHandler::GetPrefix()
  98 {
  99         return prefix;
 100 }
 101
 102 int ModeHandler::GetNumParams(bool adding)
 103 {
 104         return adding ? n_params_on : n_params_off;
 105 }
 106
 107 char ModeHandler::GetModeChar()
 108 {
 109         return mode;
 110 }
 111
 112 ModeAction ModeHandler::OnModeChange(userrec* source, userrec* dest, chanrec* channel, std::string &parameter, bool adding)
 113 {
 114         return MODEACTION_DENY;
 115 }
 116
 117 ModePair ModeHandler::ModeSet(userrec* source, userrec* dest, chanrec* channel, const std::string &parameter)
 118 {
 119         if (dest)
 120         {
 121                 return std::make_pair(dest->IsModeSet(this->mode), "");
 122         }
 123         else
 124         {
 125                 return std::make_pair(channel->IsModeSet(this->mode), "");
 126         }
 127 }
 128
 129 void ModeHandler::DisplayList(userrec* user, chanrec* channel)
 130 {
 131 }
 132
 133 bool ModeHandler::CheckTimeStamp(time_t theirs, time_t ours, const std::string &their_param, const std::string &our_param, chanrec* channel)
 134 {
 135         return (ours < theirs);
 136 }
 137
 138 ModeWatcher::ModeWatcher(InspIRCd* Instance, char modeletter, ModeType type) : ServerInstance(Instance), mode(modeletter), m_type(type)
 139 {
 140 }
 141
 142 ModeWatcher::~ModeWatcher()
 143 {
 144 }
 145
 146 char ModeWatcher::GetModeChar()
 147 {
 148         return mode;
 149 }
 150
 151 ModeType ModeWatcher::GetModeType()
 152 {
 153         return m_type;
 154 }
 155
 156 bool ModeWatcher::BeforeMode(userrec* source, userrec* dest, chanrec* channel, std::string &parameter, bool adding, ModeType type)
 157 {
 158         return true;
 159 }
 160
 161 void ModeWatcher::AfterMode(userrec* source, userrec* dest, chanrec* channel, const std::string &parameter, bool adding, ModeType type)
 162 {
 163 }
 164
 165 userrec* ModeParser::SanityChecks(userrec *user,const char *dest,chanrec *chan,int status)
 166 {
 167         userrec *d;
 168         if ((!user) || (!dest) || (!chan) || (!*dest))
 169         {
 170                 return NULL;
 171         }
 172         d = ServerInstance->FindNick(dest);
 173         if (!d)
 174         {
 175                 user->WriteServ("401 %s %s :No such nick/channel",user->nick, dest);
 176                 return NULL;
 177         }
 178         return d;
 179 }
 180
 181 const char* ModeParser::Grant(userrec *d,chanrec *chan,int MASK)
 182 {
 183         if (!chan)
 184                 return "";
 185
 186         for (std::vector<ucrec*>::const_iterator i = d->chans.begin(); i != d->chans.end(); i++)
 187         {
 188                 ucrec* n = (ucrec*)(*i);
 189                 if (n->channel == chan)
 190                 {
 191                         if (n->uc_modes & MASK)
 192                         {
 193                                 return "";
 194                         }
 195                         n->uc_modes = n->uc_modes | MASK;
 196                         switch (MASK)
 197                         {
 198                                 case UCMODE_OP:
 199                                         n->channel->AddOppedUser(d);
 200                                 break;
 201                                 case UCMODE_HOP:
 202                                         n->channel->AddHalfoppedUser(d);
 203                                 break;
 204                                 case UCMODE_VOICE:
 205                                         n->channel->AddVoicedUser(d);
 206                                 break;
 207                         }
 208                         ServerInstance->Log(DEBUG,"grant: %s %s",n->channel->name,d->nick);
 209                         return d->nick;
 210                 }
 211         }
 212         return "";
 213 }
 214
 215 const char* ModeParser::Revoke(userrec *d,chanrec *chan,int MASK)
 216 {
 217         if (!chan)
 218                 return "";
 219
 220         for (std::vector<ucrec*>::const_iterator i = d->chans.begin(); i != d->chans.end(); i++)
 221         {
 222                 ucrec* n = (ucrec*)(*i);
 223                 if (n->channel == chan)
 224                 {
 225                         if ((n->uc_modes & MASK) == 0)
 226                         {
 227                                 return "";
 228                         }
 229                         n->uc_modes ^= MASK;
 230                         switch (MASK)
 231                         {
 232                                 case UCMODE_OP:
 233                                         n->channel->DelOppedUser(d);
 234                                 break;
 235                                 case UCMODE_HOP:
 236                                         n->channel->DelHalfoppedUser(d);
 237                                 break;
 238                                 case UCMODE_VOICE:
 239                                         n->channel->DelVoicedUser(d);
 240                                 break;
 241                         }
 242                         ServerInstance->Log(DEBUG,"revoke: %s %s",n->channel->name,d->nick);
 243                         return d->nick;
 244                 }
 245         }
 246         return "";
 247 }
 248
 249 void ModeParser::DisplayCurrentModes(userrec *user, userrec* targetuser, chanrec* targetchannel, const char* text)
 250 {
 251         if (targetchannel)
 252         {
 253                 /* Display channel's current mode string */
 254                 user->WriteServ("324 %s %s +%s",user->nick, targetchannel->name, targetchannel->ChanModes(targetchannel->HasUser(user)));
 255                 user->WriteServ("329 %s %s %d", user->nick, targetchannel->name, targetchannel->created);
 256                 return;
 257         }
 258         else if (targetuser)
 259         {
 260                 /* Display user's current mode string */
 261                 user->WriteServ("221 %s :+%s",targetuser->nick,targetuser->FormatModes());
 262                 user->WriteServ("008 %s :+%s", targetuser->nick, targetuser->FormatNoticeMasks());
 263                 return;
 264         }
 265
 266         /* No such nick/channel */
 267         user->WriteServ("401 %s %s :No such nick/channel",user->nick, text);
 268         return;
 269 }
 270
 271 void ModeParser::Process(const char** parameters, int pcnt, userrec *user, bool servermode)
 272 {
 273         std::string target = parameters[0];
 274         ModeType type = MODETYPE_USER;
 275         unsigned char mask = 0;
 276         chanrec* targetchannel = ServerInstance->FindChan(parameters[0]);
 277         userrec* targetuser  = ServerInstance->FindNick(parameters[0]);
 278
 279         ServerInstance->Log(DEBUG,"ModeParser::Process start");
 280
 281         /* Special case for displaying the list for listmodes,
 282          * e.g. MODE #chan b, or MODE #chan +b without a parameter
 283          */
 284         if ((targetchannel) && (pcnt == 2))
 285         {
 286                 ServerInstance->Log(DEBUG,"Spool list");
 287                 const char* mode = parameters[1];
 288                 if (*mode == '+')
 289                         mode++;
 290                 unsigned char handler_id = ((*mode) - 65) | MASK_CHANNEL;
 291                 ModeHandler* mh = modehandlers[handler_id];
 292                 if ((mh) && (mh->IsListMode()))
 293                 {
 294                         mh->DisplayList(user, targetchannel);
 295                         return;
 296                 }
 297         }
 298
 299         if (pcnt == 1)
 300         {
 301                 ServerInstance->Log(DEBUG,"Mode list request");
 302                 this->DisplayCurrentModes(user, targetuser, targetchannel, parameters[0]);
 303         }
 304         else if (pcnt > 1)
 305         {
 306                 ServerInstance->Log(DEBUG,"More than one parameter");
 307
 308                 if (targetchannel)
 309                 {
 310                         type = MODETYPE_CHANNEL;
 311                         mask = MASK_CHANNEL;
 312
 313                         /* Extra security checks on channel modes
 314                          * (e.g. are they a (half)op?
 315                          */
 316
 317                         if ((IS_LOCAL(user)) && (targetchannel->GetStatus(user) < STATUS_HOP))
 318                         {
 319                                 /* We don't have halfop */
 320                                 ServerInstance->Log(DEBUG,"The user is not a halfop or above, checking other reasons for being able to set the modes");
 321
 322                                 /* Are we a uline or is it a servermode? */
 323                                 if ((!ServerInstance->ULine(user->server)) && (!servermode))
 324                                 {
 325                                         /* Not enough permission:
 326                                          * NOT a uline and NOT a servermode,
 327                                          * OR, NOT halfop or above.
 328                                          */
 329                                         user->WriteServ("482 %s %s :You're not a channel (half)operator",user->nick, targetchannel->name);
 330                                         return;
 331                                 }
 332                         }
 333                 }
 334                 else if (targetuser)
 335                 {
 336                         type = MODETYPE_USER;
 337                         mask = MASK_USER;
 338                 }
 339                 else
 340                 {
 341                         /* No such nick/channel */
 342                         user->WriteServ("401 %s %s :No such nick/channel",user->nick, parameters[0]);
 343                         return;
 344                 }
 345
 346                 std::string mode_sequence = parameters[1];
 347                 std::string parameter = "";
 348                 std::ostringstream parameter_list;
 349                 std::string output_sequence = "";
 350                 bool adding = true, state_change = false;
 351                 unsigned char handler_id = 0;
 352                 int parameter_counter = 2; /* Index of first parameter */
 353
 354                 for (std::string::const_iterator letter = mode_sequence.begin(); letter != mode_sequence.end(); letter++)
 355                 {
 356                         unsigned char modechar = *letter;
 357
 358                         ServerInstance->Log(DEBUG,"Process letter %c", modechar);
 359
 360                         switch (modechar)
 361                         {
 362                                 /* NB:
 363                                  * For + and - mode characters, we don't just stick the character into the output sequence.
 364                                  * This is because the user may do something dumb, like: +-+ooo or +oo-+. To prevent this
 365                                  * appearing in the output sequence, we store a flag which says there was a state change,
 366                                  * which is set on any + or -, however, the + or - that we finish on is only appended to
 367                                  * the output stream in the event it is followed by a non "+ or -" character, such as o or v.
 368                                  */
 369                                 case '+':
 370                                         /* The following expression prevents: +o+o nick nick, compressing it to +oo nick nick,
 371                                          * however, will allow the + if it is the first item in the sequence, regardless.
 372                                          */
 373                                         if ((!adding) || (!output_sequence.length()))
 374                                                 state_change = true;
 375                                         adding = true;
 376                                         continue;
 377                                 break;
 378                                 case '-':
 379                                         if ((adding) || (!output_sequence.length()))
 380                                                 state_change = true;
 381                                         adding = false;
 382                                         continue;
 383                                 break;
 384                                 default:
 385
 386                                         /**
 387                                          * Watch carefully for the sleight of hand trick.
 388                                          * 65 is the ascii value of 'A'. We take this from
 389                                          * the char we're looking at to get a number between
 390                                          * 1 and 127. We then logic-or it to get the hashed
 391                                          * position, dependent on wether its a channel or
 392                                          * a user mode. This is a little stranger, but a lot
 393                                          * faster, than using a map of pairs.
 394                                          */
 395                                         handler_id = (modechar - 65) | mask;
 396
 397                                         if (modehandlers[handler_id])
 398                                         {
 399                                                 bool abort = false;
 400
 401                                                 for (ModeWatchIter watchers = modewatchers[handler_id].begin(); watchers != modewatchers[handler_id].end(); watchers++)
 402                                                 {
 403                                                         if ((*watchers)->BeforeMode(user, targetuser, targetchannel, parameter, adding, type) == MODEACTION_DENY)
 404                                                                 abort = true;
 405                                                 }
 406                                                 if ((modehandlers[handler_id]->GetModeType() == type) && (!abort))
 407                                                 {
 408                                                         if (modehandlers[handler_id]->GetNumParams(adding))
 409                                                         {
 410                                                                 /* This mode expects a parameter, do we have any parameters left in our list to use? */
 411                                                                 if (parameter_counter < pcnt)
 412                                                                 {
 413                                                                         parameter = parameters[parameter_counter++];
 414
 415                                                                         /* Yerk, invalid! */
 416                                                                         if ((parameter.rfind(':') != std::string::npos) || (parameter.rfind(' ') != std::string::npos))
 417                                                                                 parameter = "";
 418                                                                 }
 419                                                                 else
 420                                                                 {
 421                                                                         /* No parameter, continue to the next mode */
 422                                                                         continue;
 423                                                                 }
 424                                                         }
 425
 426                                                         /* It's an oper only mode, check if theyre an oper. If they arent,
 427                                                          * eat any parameter that  came with the mode, and continue to next
 428                                                          */
 429                                                         if ((IS_LOCAL(user)) && (modehandlers[handler_id]->NeedsOper()) && (!*user->oper))
 430                                                                 continue;
 431
 432                                                         /* Call the handler for the mode */
 433                                                         ModeAction ma = modehandlers[handler_id]->OnModeChange(user, targetuser, targetchannel, parameter, adding);
 434
 435                                                         if ((modehandlers[handler_id]->GetNumParams(adding)) && (parameter == ""))
 436                                                         {
 437                                                                 /* The handler nuked the parameter and they are supposed to have one.
 438                                                                  * We CANT continue now, even if they actually returned MODEACTION_ALLOW,
 439                                                                  * so we bail to the next mode character.
 440                                                                  */
 441                                                                 continue;
 442                                                         }
 443
 444                                                         if (ma == MODEACTION_ALLOW)
 445                                                         {
 446                                                                 /* We're about to output a valid mode letter - was there previously a pending state-change? */
 447                                                                 if (state_change)
 448                                                                         output_sequence.append(adding ? "+" : "-");
 449
 450                                                                 /* Add the mode letter */
 451                                                                 output_sequence.push_back(modechar);
 452
 453                                                                 /* Is there a valid parameter for this mode? If so add it to the parameter list */
 454                                                                 if ((modehandlers[handler_id]->GetNumParams(adding)) && (parameter != ""))
 455                                                                 {
 456                                                                         parameter_list << " " << parameter;
 457                                                                         /* Does this mode have a prefix? */
 458                                                                         if (modehandlers[handler_id]->GetPrefix() && targetchannel)
 459                                                                         {
 460                                                                                 userrec* user_to_prefix = ServerInstance->FindNick(parameter);
 461                                                                                 if (user_to_prefix)
 462                                                                                         targetchannel->SetPrefix(user_to_prefix, modehandlers[handler_id]->GetPrefix(),
 463                                                                                                         modehandlers[handler_id]->GetPrefixRank(), adding);
 464                                                                         }
 465                                                                 }
 466
 467                                                                 /* Call all the AfterMode events in the mode watchers for this mode */
 468                                                                 for (ModeWatchIter watchers = modewatchers[handler_id].begin(); watchers != modewatchers[handler_id].end(); watchers++)
 469                                                                         (*watchers)->AfterMode(user, targetuser, targetchannel, parameter, adding, type);
 470
 471                                                                 /* Reset the state change flag */
 472                                                                 state_change = false;
 473                                                         }
 474                                                 }
 475                                         }
 476                                         else
 477                                         {
 478                                                 /* No mode handler? Unknown mode character then. */
 479                                                 user->WriteServ("472 %s %c :is unknown mode char to me",user->nick, modechar);
 480                                         }
 481                                 break;
 482                         }
 483                 }
 484                 /* Was there at least one valid mode in the sequence? */
 485                 if (output_sequence != "")
 486                 {
 487                         if (servermode)
 488                         {
 489                                 if (type == MODETYPE_CHANNEL)
 490                                 {
 491                                         targetchannel->WriteChannelWithServ(ServerInstance->Config->ServerName, "MODE %s %s%s", targetchannel->name, output_sequence.c_str(), parameter_list.str().c_str());
 492                                 }
 493                                 else
 494                                 {
 495                                         targetuser->WriteServ("MODE %s %s",targetuser->nick,output_sequence.c_str());
 496                                 }
 497                         }
 498                         else
 499                         {
 500                                 if (type == MODETYPE_CHANNEL)
 501                                 {
 502                                         ServerInstance->Log(DEBUG,"Write output sequence and parameters to channel: %s %s%s",targetchannel->name,output_sequence.c_str(),parameter_list.str().c_str());
 503                                         targetchannel->WriteChannel(user,"MODE %s %s%s",targetchannel->name,output_sequence.c_str(),parameter_list.str().c_str());
 504                                         FOREACH_MOD(I_OnMode,OnMode(user, targetchannel, TYPE_CHANNEL, output_sequence + parameter_list.str()));
 505                                 }
 506                                 else
 507                                 {
 508                                         user->WriteTo(targetuser,"MODE %s %s",targetuser->nick,output_sequence.c_str());
 509                                         FOREACH_MOD(I_OnMode,OnMode(user, targetuser, TYPE_USER, output_sequence));
 510                                 }
 511                         }
 512                 }
 513         }
 514 }
 515
 516
 517 void cmd_mode::Handle (const char** parameters, int pcnt, userrec *user)
 518 {
 519         if (!user)
 520                 return;
 521
 522         ServerInstance->Modes->Process(parameters, pcnt, user, false);
 523
 524         return;
 525 }
 526
 527 void ModeParser::CleanMask(std::string &mask)
 528 {
 529         std::string::size_type pos_of_pling = mask.find_first_of('!');
 530         std::string::size_type pos_of_at = mask.find_first_of('@');
 531         std::string::size_type pos_of_dot = mask.find_first_of('.');
 532         std::string::size_type pos_of_colon = mask.find_first_of(':'); /* Because ipv6 addresses are colon delimited */
 533
 534         if ((pos_of_pling == std::string::npos) && (pos_of_at == std::string::npos))
 535         {
 536                 /* Just a nick, or just a host */
 537                 if ((pos_of_dot == std::string::npos) && (pos_of_colon == std::string::npos))
 538                 {
 539                         /* It has no '.' in it, it must be a nick. */
 540                         mask.append("!*@*");
 541                 }
 542                 else
 543                 {
 544                         /* Got a dot in it? Has to be a host */
 545                         mask = "*!*@" + mask;
 546                 }
 547         }
 548         else if ((pos_of_pling == std::string::npos) && (pos_of_at != std::string::npos))
 549         {
 550                 /* Has an @ but no !, its a user@host */
 551                  mask = "*!" + mask;
 552         }
 553         else if ((pos_of_pling != std::string::npos) && (pos_of_at == std::string::npos))
 554         {
 555                 /* Has a ! but no @, it must be a nick!ident */
 556                 mask.append("@*");
 557         }
 558 }
 559
 560 bool ModeParser::AddMode(ModeHandler* mh, unsigned const char modeletter)
 561 {
 562         unsigned char mask = 0;
 563         unsigned char pos = 0;
 564
 565         /* Yes, i know, this might let people declare modes like '_' or '^'.
 566          * If they do that, thats their problem, and if i ever EVER see an
 567          * official InspIRCd developer do that, i'll beat them with a paddle!
 568          */
 569         if ((mh->GetModeChar() < 'A') || (mh->GetModeChar() > 'z'))
 570                 return false;
 571
 572         mh->GetModeType() == MODETYPE_USER ? mask = MASK_USER : mask = MASK_CHANNEL;
 573         pos = (mh->GetModeChar()-65) | mask;
 574
 575         if (modehandlers[pos])
 576                 return false;
 577
 578         modehandlers[pos] = mh;
 579         ServerInstance->Log(DEBUG,"ModeParser::AddMode: added mode %c",mh->GetModeChar());
 580         return true;
 581 }
 582
 583 ModeHandler* ModeParser::FindMode(unsigned const char modeletter, ModeType mt)
 584 {
 585         unsigned char mask = 0;
 586         unsigned char pos = 0;
 587
 588         if ((modeletter < 'A') || (modeletter > 'z'))
 589                 return NULL;
 590
 591         mt == MODETYPE_USER ? mask = MASK_USER : mask = MASK_CHANNEL;
 592         pos = (modeletter-65) | mask;
 593
 594         return modehandlers[pos];
 595 }
 596
 597 std::string ModeParser::UserModeList()
 598 {
 599         char modestr[256];
 600         int pointer = 0;
 601
 602         for (unsigned char mode = 'A'; mode <= 'z'; mode++)
 603         {
 604                 unsigned char pos = (mode-65) | MASK_USER;
 605
 606                 if (modehandlers[pos])
 607                         modestr[pointer++] = mode;
 608         }
 609         modestr[pointer++] = 0;
 610         return modestr;
 611 }
 612
 613 std::string ModeParser::ChannelModeList()
 614 {
 615         char modestr[256];
 616         int pointer = 0;
 617
 618         for (unsigned char mode = 'A'; mode <= 'z'; mode++)
 619         {
 620                 unsigned char pos = (mode-65) | MASK_CHANNEL;
 621
 622                 if (modehandlers[pos])
 623                         modestr[pointer++] = mode;
 624         }
 625         modestr[pointer++] = 0;
 626         return modestr;
 627 }
 628
 629 std::string ModeParser::ParaModeList()
 630 {
 631         char modestr[256];
 632         int pointer = 0;
 633
 634         for (unsigned char mode = 'A'; mode <= 'z'; mode++)
 635         {
 636                 unsigned char pos = (mode-65) | MASK_CHANNEL;
 637
 638                 if ((modehandlers[pos]) && (modehandlers[pos]->GetNumParams(true)))
 639                         modestr[pointer++] = mode;
 640         }
 641         modestr[pointer++] = 0;
 642         return modestr;
 643 }
 644
 645 bool ModeParser::AddModeWatcher(ModeWatcher* mw)
 646 {
 647         unsigned char mask = 0;
 648         unsigned char pos = 0;
 649
 650         if (!mw)
 651                 return false;
 652
 653         if ((mw->GetModeChar() < 'A') || (mw->GetModeChar() > 'z'))
 654                 return false;
 655
 656         mw->GetModeType() == MODETYPE_USER ? mask = MASK_USER : mask = MASK_CHANNEL;
 657         pos = (mw->GetModeChar()-65) | mask;
 658
 659         modewatchers[pos].push_back(mw);
 660         ServerInstance->Log(DEBUG,"ModeParser::AddModeWatcher: watching mode %c",mw->GetModeChar());
 661
 662         return true;
 663 }
 664
 665 bool ModeParser::DelModeWatcher(ModeWatcher* mw)
 666 {
 667         unsigned char mask = 0;
 668         unsigned char pos = 0;
 669
 670         if (!mw)
 671                 return false;
 672
 673         if ((mw->GetModeType() < 'A') || (mw->GetModeType() > 'z'))
 674                 return false;
 675
 676         mw->GetModeType() == MODETYPE_USER ? mask = MASK_USER : mask = MASK_CHANNEL;
 677         pos = (mw->GetModeChar()-65) | mask;
 678
 679         ModeWatchIter a = find(modewatchers[pos].begin(),modewatchers[pos].end(),mw);
 680
 681         if (a == modewatchers[pos].end())
 682                 return false;
 683
 684         modewatchers[pos].erase(a);
 685         ServerInstance->Log(DEBUG,"ModeParser::DelModeWatcher: stopped watching mode %c",mw->GetModeChar());
 686
 687         return true;
 688 }
 689
 690 ModeParser::ModeParser(InspIRCd* Instance) : ServerInstance(Instance)
 691 {
 692         /* Clear mode list */
 693         memset(modehandlers, 0, sizeof(modehandlers));
 694         memset(modewatchers, 0, sizeof(modewatchers));
 695
 696         /* Initialise the RFC mode letters */
 697
 698         /* Start with channel simple modes, no params */
 699         this->AddMode(new ModeChannelSecret(Instance), 's');
 700         this->AddMode(new ModeChannelPrivate(Instance), 'p');
 701         this->AddMode(new ModeChannelModerated(Instance), 'm');
 702         this->AddMode(new ModeChannelTopicOps(Instance), 't');
 703         this->AddMode(new ModeChannelNoExternal(Instance), 'n');
 704         this->AddMode(new ModeChannelInviteOnly(Instance), 'i');
 705
 706         /* Cannel modes with params */
 707         this->AddMode(new ModeChannelKey(Instance), 'k');
 708         this->AddMode(new ModeChannelLimit(Instance), 'l');
 709
 710         /* Channel listmodes */
 711         this->AddMode(new ModeChannelBan(Instance), 'b');
 712         this->AddMode(new ModeChannelOp(Instance), 'o');
 713         this->AddMode(new ModeChannelHalfOp(Instance), 'h');
 714         this->AddMode(new ModeChannelVoice(Instance), 'v');
 715
 716         /* Now for usermodes */
 717         this->AddMode(new ModeUserServerNotice(Instance), 's');
 718         this->AddMode(new ModeUserWallops(Instance), 'w');
 719         this->AddMode(new ModeUserInvisible(Instance), 'i');
 720         this->AddMode(new ModeUserOperator(Instance), 'o');
 721         this->AddMode(new ModeUserServerNoticeMask(Instance), 'n');
 722 }
 723
 724 bool ModeParser::InsertMode(std::string &output, const char* mode, unsigned short section)
 725 {
 726         unsigned short currsection = 1;
 727         unsigned int pos = output.find("CHANMODES=", 0) + 10; // +10 for the length of "CHANMODES="
 728
 729         if(section > 4 || section == 0)
 730         {
 731                 ServerInstance->Log(DEBUG, "InsertMode: CHANMODES doesn't have a section %dh :/", section);
 732                 return false;
 733         }
 734
 735         for(; pos < output.size(); pos++)
 736         {
 737                 if(section == currsection)
 738                         break;
 739
 740                 if(output[pos] == ',')
 741                         currsection++;
 742         }
 743
 744         output.insert(pos, mode);
 745         return true;
 746 }
 747