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