src/mode.cpp

   1 /*       +------------------------------------+
   2  *       | Inspire Internet Relay Chat Daemon |
   3  *       +------------------------------------+
   4  *
   5  *  InspIRCd is copyright (C) 2002-2006 ChatSpike-Dev.
   6  *                       E-mail:
   7  *                <brain@chatspike.net>
   8  *                <Craig@chatspike.net>
   9  *
  10  * Written by Craig Edwards, Craig McLure, and others.
  11  * This program is free but copyrighted software; see
  12  *            the file COPYING for details.
  13  *
  14  * ---------------------------------------------------
  15  */
  16
  17 using namespace std;
  18
  19 #include "inspircd_config.h"
  20 #include "inspircd.h"
  21 #include "inspircd_io.h"
  22 #include <unistd.h>
  23 #include <sys/errno.h>
  24 #include <time.h>
  25 #include <string>
  26 #ifdef GCC3
  27 #include <ext/hash_map>
  28 #else
  29 #include <hash_map>
  30 #endif
  31 #include <map>
  32 #include <sstream>
  33 #include <vector>
  34 #include <deque>
  35 #include "connection.h"
  36 #include "users.h"
  37 #include "ctables.h"
  38 #include "globals.h"
  39 #include "modules.h"
  40 #include "dynamic.h"
  41 #include "wildcard.h"
  42 #include "message.h"
  43 #include "commands.h"
  44 #include "xline.h"
  45 #include "inspstring.h"
  46 #include "helperfuncs.h"
  47 #include "mode.h"
  48
  49 extern int MODCOUNT;
  50 extern std::vector<Module*> modules;
  51 extern std::vector<ircd_module*> factory;
  52 extern InspIRCd* ServerInstance;
  53 extern ServerConfig* Config;
  54
  55 extern time_t TIME;
  56
  57 char* ModeParser::GiveOps(userrec *user,char *dest,chanrec *chan,int status)
  58 {
  59         userrec *d;
  60
  61         if ((!user) || (!dest) || (!chan) || (!*dest))
  62         {
  63                 log(DEFAULT,"*** BUG *** GiveOps was given an invalid parameter");
  64                 return NULL;
  65         }
  66         d = Find(dest);
  67         if (!d)
  68         {
  69                 log(DEFAULT,"the target nickname given to GiveOps couldnt be found");
  70                 WriteServ(user->fd,"401 %s %s :No such nick/channel",user->nick, dest);
  71                 return NULL;
  72         }
  73         else
  74         {
  75                 if (user->server == d->server)
  76                 {
  77                         int MOD_RESULT = 0;
  78                         FOREACH_RESULT(I_OnAccessCheck,OnAccessCheck(user,d,chan,AC_OP));
  79
  80                         if (MOD_RESULT == ACR_DENY)
  81                                 return NULL;
  82                         if (MOD_RESULT == ACR_DEFAULT)
  83                         {
  84                                 if ((status < STATUS_OP) && (!is_uline(user->server)) && (IS_LOCAL(user)))
  85                                 {
  86                                         log(DEBUG,"%s cant give ops to %s because they nave status %d and needs %d",user->nick,dest,status,STATUS_OP);
  87                                         WriteServ(user->fd,"482 %s %s :You're not a channel operator",user->nick, chan->name);
  88                                         return NULL;
  89                                 }
  90                         }
  91                 }
  92
  93
  94                 for (unsigned int i = 0; i < d->chans.size(); i++)
  95                 {
  96                         if ((d->chans[i].channel != NULL) && (chan != NULL))
  97                         if (!strcasecmp(d->chans[i].channel->name,chan->name))
  98                         {
  99                                 if (d->chans[i].uc_modes & UCMODE_OP)
 100                                 {
 101                                         /* mode already set on user, dont allow multiple */
 102                                         return NULL;
 103                                 }
 104                                 d->chans[i].uc_modes = d->chans[i].uc_modes | UCMODE_OP;
 105                                 d->chans[i].channel->AddOppedUser((char*)d);
 106                                 log(DEBUG,"gave ops: %s %s",d->chans[i].channel->name,d->nick);
 107                                 return d->nick;
 108                         }
 109                 }
 110                 log(DEFAULT,"The target channel given to GiveOps was not in the users mode list");
 111         }
 112         return NULL;
 113 }
 114
 115 char* ModeParser::GiveHops(userrec *user,char *dest,chanrec *chan,int status)
 116 {
 117         userrec *d;
 118
 119         if ((!user) || (!dest) || (!chan) || (!*dest))
 120         {
 121                 log(DEFAULT,"*** BUG *** GiveHops was given an invalid parameter");
 122                 return NULL;
 123         }
 124
 125         d = Find(dest);
 126         if (!d)
 127         {
 128                 WriteServ(user->fd,"401 %s %s :No such nick/channel",user->nick, dest);
 129                 return NULL;
 130         }
 131         else
 132         {
 133                 if (user->server == d->server)
 134                 {
 135                         int MOD_RESULT = 0;
 136                         FOREACH_RESULT(I_OnAccessCheck,OnAccessCheck(user,d,chan,AC_HALFOP));
 137
 138                         if (MOD_RESULT == ACR_DENY)
 139                                 return NULL;
 140                         if (MOD_RESULT == ACR_DEFAULT)
 141                         {
 142                                 if ((status < STATUS_OP) && (!is_uline(user->server)) && (IS_LOCAL(user)))
 143                                 {
 144                                         WriteServ(user->fd,"482 %s %s :You're not a channel operator",user->nick, chan->name);
 145                                         return NULL;
 146                                 }
 147                         }
 148                 }
 149
 150                 for (unsigned int i = 0; i < d->chans.size(); i++)
 151                 {
 152                         if ((d->chans[i].channel != NULL) && (chan != NULL))
 153                         if (!strcasecmp(d->chans[i].channel->name,chan->name))
 154                         {
 155                                 if (d->chans[i].uc_modes & UCMODE_HOP)
 156                                 {
 157                                         /* mode already set on user, dont allow multiple */
 158                                         return NULL;
 159                                 }
 160                                 d->chans[i].uc_modes = d->chans[i].uc_modes | UCMODE_HOP;
 161                                 d->chans[i].channel->AddHalfoppedUser((char*)d);
 162                                 log(DEBUG,"gave h-ops: %s %s",d->chans[i].channel->name,d->nick);
 163                                 return d->nick;
 164                         }
 165                 }
 166         }
 167         return NULL;
 168 }
 169
 170 char* ModeParser::GiveVoice(userrec *user,char *dest,chanrec *chan,int status)
 171 {
 172         userrec *d;
 173
 174         if ((!user) || (!dest) || (!chan) || (!*dest))
 175         {
 176                 log(DEFAULT,"*** BUG *** GiveVoice was given an invalid parameter");
 177                 return NULL;
 178         }
 179
 180         d = Find(dest);
 181         if (!d)
 182         {
 183                 WriteServ(user->fd,"401 %s %s :No such nick/channel",user->nick, dest);
 184                 return NULL;
 185         }
 186         else
 187         {
 188                 if (user->server == d->server)
 189                 {
 190                         int MOD_RESULT = 0;
 191                         FOREACH_RESULT(I_OnAccessCheck,OnAccessCheck(user,d,chan,AC_VOICE));
 192
 193                         if (MOD_RESULT == ACR_DENY)
 194                                 return NULL;
 195                         if (MOD_RESULT == ACR_DEFAULT)
 196                         {
 197                                 if ((status < STATUS_HOP) && (!is_uline(user->server)) && (IS_LOCAL(user)))
 198                                 {
 199                                         WriteServ(user->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel",user->nick, chan->name);
 200                                         return NULL;
 201                                 }
 202                         }
 203                 }
 204
 205                 for (unsigned int i = 0; i < d->chans.size(); i++)
 206                 {
 207                         if ((d->chans[i].channel != NULL) && (chan != NULL))
 208                         if (!strcasecmp(d->chans[i].channel->name,chan->name))
 209                         {
 210                                 if (d->chans[i].uc_modes & UCMODE_VOICE)
 211                                 {
 212                                         /* mode already set on user, dont allow multiple */
 213                                         return NULL;
 214                                 }
 215                                 d->chans[i].uc_modes = d->chans[i].uc_modes | UCMODE_VOICE;
 216                                 d->chans[i].channel->AddVoicedUser((char*)d);
 217                                 log(DEBUG,"gave voice: %s %s",d->chans[i].channel->name,d->nick);
 218                                 return d->nick;
 219                         }
 220                 }
 221         }
 222         return NULL;
 223 }
 224
 225 char* ModeParser::TakeOps(userrec *user,char *dest,chanrec *chan,int status)
 226 {
 227         userrec *d;
 228
 229         if ((!user) || (!dest) || (!chan) || (!*dest))
 230         {
 231                 log(DEFAULT,"*** BUG *** TakeOps was given an invalid parameter");
 232                 return NULL;
 233         }
 234
 235         d = Find(dest);
 236         if (!d)
 237         {
 238                 log(DEBUG,"TakeOps couldnt resolve the target nickname: %s",dest);
 239                 WriteServ(user->fd,"401 %s %s :No such nick/channel",user->nick, dest);
 240                 return NULL;
 241         }
 242         else
 243         {
 244                 if (user->server == d->server)
 245                 {
 246                         int MOD_RESULT = 0;
 247                         FOREACH_RESULT(I_OnAccessCheck,OnAccessCheck(user,d,chan,AC_DEOP));
 248
 249                         if (MOD_RESULT == ACR_DENY)
 250                                 return NULL;
 251                         if (MOD_RESULT == ACR_DEFAULT)
 252                         {
 253                                 if ((status < STATUS_OP) && (!is_uline(user->server)) && (IS_LOCAL(user)) && (IS_LOCAL(user)))
 254                                 {
 255                                         WriteServ(user->fd,"482 %s %s :You are not a channel operator",user->nick, chan->name);
 256                                         return NULL;
 257                                 }
 258                         }
 259                 }
 260
 261                 for (unsigned int i = 0; i < d->chans.size(); i++)
 262                 {
 263                         if ((d->chans[i].channel != NULL) && (chan != NULL))
 264                         if (!strcasecmp(d->chans[i].channel->name,chan->name))
 265                         {
 266                                 if ((d->chans[i].uc_modes & UCMODE_OP) == 0)
 267                                 {
 268                                         /* mode already set on user, dont allow multiple */
 269                                         return NULL;
 270                                 }
 271                                 d->chans[i].uc_modes ^= UCMODE_OP;
 272                                 d->chans[i].channel->DelOppedUser((char*)d);
 273                                 log(DEBUG,"took ops: %s %s",d->chans[i].channel->name,d->nick);
 274                                 return d->nick;
 275                         }
 276                 }
 277                 log(DEBUG,"TakeOps couldnt locate the target channel in the target users list");
 278         }
 279         return NULL;
 280 }
 281
 282 char* ModeParser::TakeHops(userrec *user,char *dest,chanrec *chan,int status)
 283 {
 284         userrec *d;
 285
 286         if ((!user) || (!dest) || (!chan) || (!*dest))
 287         {
 288                 log(DEFAULT,"*** BUG *** TakeHops was given an invalid parameter");
 289                 return NULL;
 290         }
 291
 292         d = Find(dest);
 293         if (!d)
 294         {
 295                 WriteServ(user->fd,"401 %s %s :No such nick/channel",user->nick, dest);
 296                 return NULL;
 297         }
 298         else
 299         {
 300                 if (user->server == d->server)
 301                 {
 302                         int MOD_RESULT = 0;
 303                         FOREACH_RESULT(I_OnAccessCheck,OnAccessCheck(user,d,chan,AC_DEHALFOP));
 304
 305                         if (MOD_RESULT == ACR_DENY)
 306                                 return NULL;
 307                         if (MOD_RESULT == ACR_DEFAULT)
 308                         {
 309                                 /* Tweak by Brain suggested by w00t, allow a halfop to dehalfop themselves */
 310                                 if ((user != d) && ((status < STATUS_OP) && (!is_uline(user->server))) && (IS_LOCAL(user)))
 311                                 {
 312                                         WriteServ(user->fd,"482 %s %s :You are not a channel operator",user->nick, chan->name);
 313                                         return NULL;
 314                                 }
 315                         }
 316                 }
 317
 318                 for (unsigned int i = 0; i < d->chans.size(); i++)
 319                 {
 320                         if ((d->chans[i].channel != NULL) && (chan != NULL))
 321                         if (!strcasecmp(d->chans[i].channel->name,chan->name))
 322                         {
 323                                 if ((d->chans[i].uc_modes & UCMODE_HOP) == 0)
 324                                 {
 325                                         /* mode already set on user, dont allow multiple */
 326                                         return NULL;
 327                                 }
 328                                 d->chans[i].uc_modes ^= UCMODE_HOP;
 329                                 d->chans[i].channel->DelHalfoppedUser((char*)d);
 330                                 log(DEBUG,"took h-ops: %s %s",d->chans[i].channel->name,d->nick);
 331                                 return d->nick;
 332                         }
 333                 }
 334         }
 335         return NULL;
 336 }
 337
 338 char* ModeParser::TakeVoice(userrec *user,char *dest,chanrec *chan,int status)
 339 {
 340         userrec *d;
 341
 342         if ((!user) || (!dest) || (!chan) || (!*dest))
 343         {
 344                 log(DEFAULT,"*** BUG *** TakeVoice was given an invalid parameter");
 345                 return NULL;
 346         }
 347
 348         d = Find(dest);
 349         if (!d)
 350         {
 351                 WriteServ(user->fd,"401 %s %s :No such nick/channel",user->nick, dest);
 352                 return NULL;
 353         }
 354         else
 355         {
 356                 if (user->server == d->server)
 357                 {
 358                         int MOD_RESULT = 0;
 359                         FOREACH_RESULT(I_OnAccessCheck,OnAccessCheck(user,d,chan,AC_DEVOICE));
 360
 361                         if (MOD_RESULT == ACR_DENY)
 362                                 return NULL;
 363                         if (MOD_RESULT == ACR_DEFAULT)
 364                         {
 365                                 if ((status < STATUS_HOP) && (!is_uline(user->server)) && (IS_LOCAL(user)))
 366                                 {
 367                                         WriteServ(user->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel",user->nick, chan->name);
 368                                         return NULL;
 369                                 }
 370                         }
 371                 }
 372
 373                 for (unsigned int i = 0; i < d->chans.size(); i++)
 374                 {
 375                         if ((d->chans[i].channel != NULL) && (chan != NULL))
 376                         if (!strcasecmp(d->chans[i].channel->name,chan->name))
 377                         {
 378                                 if ((d->chans[i].uc_modes & UCMODE_VOICE) == 0)
 379                                 {
 380                                         /* mode already set on user, dont allow multiple */
 381                                         return NULL;
 382                                 }
 383                                 d->chans[i].uc_modes ^= UCMODE_VOICE;
 384                                 d->chans[i].channel->DelVoicedUser((char*)d);
 385                                 log(DEBUG,"took voice: %s %s",d->chans[i].channel->name,d->nick);
 386                                 return d->nick;
 387                         }
 388                 }
 389         }
 390         return NULL;
 391 }
 392
 393 char* ModeParser::AddBan(userrec *user,char *dest,chanrec *chan,int status)
 394 {
 395         BanItem b;
 396         int toomanyexclamation = 0;
 397         int toomanyat = 0;
 398
 399         if ((!user) || (!dest) || (!chan) || (!*dest))
 400         {
 401                 log(DEFAULT,"*** BUG *** AddBan was given an invalid parameter");
 402                 return NULL;
 403         }
 404
 405         for (char* i = dest; *i; i++)
 406         {
 407                 if ((*i < 32) || (*i > 126))
 408                 {
 409                         return NULL;
 410                 }
 411                 else if (*i == '!')
 412                 {
 413                         toomanyexclamation++;
 414                 }
 415                 else if (*i == '@')
 416                 {
 417                         toomanyat++;
 418                 }
 419         }
 420
 421         if (toomanyexclamation != 1 || toomanyat != 1)
 422                 /*
 423                  * this stops sillyness like n!u!u!u@h, though note that most
 424                  * ircds don't actually verify banmask validity. --w00t
 425                  */
 426                 return NULL;
 427
 428         long maxbans = GetMaxBans(chan->name);
 429         if ((unsigned)chan->bans.size() > (unsigned)maxbans)
 430         {
 431                 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);
 432                 return NULL;
 433         }
 434
 435         log(DEBUG,"AddBan: %s %s",chan->name,user->nick);
 436
 437         int MOD_RESULT = 0;
 438         FOREACH_RESULT(I_OnAddBan,OnAddBan(user,chan,dest));
 439         if (MOD_RESULT)
 440                 return NULL;
 441
 442         TidyBan(dest);
 443         for (BanList::iterator i = chan->bans.begin(); i != chan->bans.end(); i++)
 444         {
 445                 if (!strcasecmp(i->data,dest))
 446                 {
 447                         // dont allow a user to set the same ban twice
 448                         return NULL;
 449                 }
 450         }
 451
 452         b.set_time = TIME;
 453         strlcpy(b.data,dest,MAXBUF);
 454         if (*user->nick)
 455         {
 456                 strlcpy(b.set_by,user->nick,NICKMAX-1);
 457         }
 458         else
 459         {
 460                 strlcpy(b.set_by,Config->ServerName,NICKMAX-1);
 461         }
 462         chan->bans.push_back(b);
 463         return dest;
 464 }
 465
 466 char* ModeParser::TakeBan(userrec *user,char *dest,chanrec *chan,int status)
 467 {
 468         if ((!user) || (!dest) || (!chan) || (!*dest)) {
 469                 log(DEFAULT,"*** BUG *** TakeBan was given an invalid parameter");
 470                 return 0;
 471         }
 472
 473         log(DEBUG,"del_ban: %s %s",chan->name,user->nick);
 474         for (BanList::iterator i = chan->bans.begin(); i != chan->bans.end(); i++)
 475         {
 476                 if (!strcasecmp(i->data,dest))
 477                 {
 478                         int MOD_RESULT = 0;
 479                         FOREACH_RESULT(I_OnDelBan,OnDelBan(user,chan,dest));
 480                         if (MOD_RESULT)
 481                                 return NULL;
 482                         chan->bans.erase(i);
 483                         return dest;
 484                 }
 485         }
 486         return NULL;
 487 }
 488
 489 // tidies up redundant modes, e.g. +nt-nt+i becomes +-+i,
 490 // a section further down the chain tidies up the +-+- crap.
 491 std::string ModeParser::CompressModes(std::string modes,bool channelmodes)
 492 {
 493         int counts[127];
 494         bool active[127];
 495         memset(counts,0,sizeof(counts));
 496         memset(active,0,sizeof(active));
 497         for (unsigned int i = 0; i < modes.length(); i++)
 498         {
 499                 if ((modes[i] == '+') || (modes[i] == '-'))
 500                         continue;
 501                 if (channelmodes)
 502                 {
 503                         if ((strchr("itnmsp",modes[i])) || ((ModeDefined(modes[i],MT_CHANNEL)) && (ModeDefinedOn(modes[i],MT_CHANNEL)==0) && (ModeDefinedOff(modes[i],MT_CHANNEL)==0)))
 504                         {
 505                                 log(DEBUG,"Tidy mode %c",modes[i]);
 506                                 counts[(unsigned int)modes[i]]++;
 507                                 active[(unsigned int)modes[i]] = true;
 508                         }
 509                 }
 510                 else
 511                 {
 512                         log(DEBUG,"Tidy mode %c",modes[i]);
 513                         counts[(unsigned int)modes[i]]++;
 514                         active[(unsigned int)modes[i]] = true;
 515                 }
 516         }
 517         for (int j = 65; j < 127; j++)
 518         {
 519                 if ((counts[j] > 1) && (active[j] == true))
 520                 {
 521                         static char v[2];
 522                         v[0] = (unsigned char)j;
 523                         v[1] = '\0';
 524                         std::string mode_str = v;
 525                         std::string::size_type pos = modes.find(mode_str);
 526                         if (pos != std::string::npos)
 527                         {
 528                                 log(DEBUG,"all occurances of mode %c to be deleted...",(unsigned char)j);
 529                                 while (modes.find(mode_str) != std::string::npos)
 530                                         modes.erase(modes.find(mode_str),1);
 531                                 log(DEBUG,"New mode line: %s",modes.c_str());
 532                         }
 533                 }
 534         }
 535         return modes;
 536 }
 537
 538 void ModeParser::ProcessModes(char **parameters,userrec* user,chanrec *chan,int status, int pcnt, bool servermode, bool silent, bool local)
 539 {
 540         if (!parameters) {
 541                 log(DEFAULT,"*** BUG *** process_modes was given an invalid parameter");
 542                 return;
 543         }
 544
 545         char modelist[MAXBUF];
 546         char outlist[MAXBUF];
 547         char outstr[MAXBUF];
 548         char outpars[32][MAXBUF];
 549         int param = 2;
 550         int pc = 0;
 551         int ptr = 0;
 552         int mdir = 1;
 553         char* r = NULL;
 554         bool k_set = false, l_set = false, previously_set_l = false, previously_unset_l = false, previously_set_k = false, previously_unset_k = false;
 555
 556         if (pcnt < 2)
 557         {
 558                 return;
 559         }
 560
 561         int MOD_RESULT = 0;
 562
 563         if (IS_LOCAL(user))
 564         {
 565                 FOREACH_RESULT(I_OnAccessCheck,OnAccessCheck(user,NULL,chan,AC_GENERAL_MODE));
 566                 if (MOD_RESULT == ACR_DENY)
 567                         return;
 568         }
 569
 570         log(DEBUG,"process_modes: start: parameters=%d",pcnt);
 571
 572         strlcpy(modelist,parameters[1],MAXBUF); /* mode list, e.g. +oo-o *
 573                                                  * parameters[2] onwards are parameters for
 574                                                  * modes that require them :) */
 575         *outlist = *modelist;
 576         char* outl = outlist+1;
 577
 578         mdir = (*modelist == '+');
 579
 580         log(DEBUG,"process_modes: modelist: %s",modelist);
 581
 582         std::string tidied = this->CompressModes(modelist,true);
 583         strlcpy(modelist,tidied.c_str(),MAXBUF);
 584
 585         int len = tidied.length();
 586         while (modelist[len-1] == ' ')
 587                 modelist[--len] = '\0';
 588
 589         bool next_cant_be_modifier = false;
 590         char* modechar;
 591
 592         for (modechar = (modelist + 1); *modechar; ptr++, modechar++)
 593         {
 594                 r = NULL;
 595
 596                 /* If we have more than MAXMODES changes in one line,
 597                  * drop all after the MAXMODES
 598                  */
 599                 if (pc > MAXMODES-1)
 600                         break;
 601
 602                 log(DEBUG,"Mode %c",*modechar);
 603
 604                 {
 605                         switch (*modechar)
 606                         {
 607                                 case '-':
 608                                         *outl++ = '-';
 609                                         mdir = 0;
 610                                         next_cant_be_modifier = true;
 611
 612                                 break;
 613
 614                                 case '+':
 615                                         *outl++ = '+';
 616                                         mdir = 1;
 617                                         next_cant_be_modifier = true;
 618                                 break;
 619
 620                                 case 'o':
 621                                         log(DEBUG,"Ops");
 622                                         if ((param >= pcnt)) break;
 623                                         log(DEBUG,"Enough parameters left");
 624                                         r = NULL;
 625                                         if (mdir == 1)
 626                                         {
 627                                                 MOD_RESULT = 0;
 628                                                 FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'o', parameters[param], true, 1));
 629                                                 if (!MOD_RESULT)
 630                                                 {
 631                                                         log(DEBUG,"calling GiveOps");
 632                                                         r = GiveOps(user,parameters[param++],chan,status);
 633                                                 }
 634                                                 else param++;
 635                                         }
 636                                         else
 637                                         {
 638                                                 MOD_RESULT = 0;
 639                                                 FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'o', parameters[param], false, 1));
 640                                                 if (!MOD_RESULT)
 641                                                 {
 642                                                         log(DEBUG,"calling TakeOps");
 643                                                         r = TakeOps(user,parameters[param++],chan,status);
 644                                                 }
 645                                                 else param++;
 646                                         }
 647                                         if (r)
 648                                         {
 649                                                 *outl++ = 'o';
 650                                                 strlcpy(outpars[pc++],r,MAXBUF);
 651                                         }
 652                                 break;
 653
 654                                 case 'h':
 655                                         if (((param >= pcnt)) || (!Config->AllowHalfop)) break;
 656                                         r = NULL;
 657                                         if (mdir == 1)
 658                                         {
 659                                                 MOD_RESULT = 0;
 660                                                 FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'h', parameters[param], true, 1));
 661                                                 if (!MOD_RESULT)
 662                                                 {
 663                                                         r = GiveHops(user,parameters[param++],chan,status);
 664                                                 }
 665                                                 else param++;
 666                                         }
 667                                         else
 668                                         {
 669                                                 MOD_RESULT = 0;
 670                                                 FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'h', parameters[param], false, 1));
 671                                                 if (!MOD_RESULT)
 672                                                 {
 673                                                         r = TakeHops(user,parameters[param++],chan,status);
 674                                                 }
 675                                                 else param++;
 676                                         }
 677                                         if (r)
 678                                         {
 679                                                 *outl++ = 'h';
 680                                                 strlcpy(outpars[pc++],r,MAXBUF);
 681                                         }
 682                                 break;
 683
 684
 685                                 case 'v':
 686                                         if ((param >= pcnt)) break;
 687                                         r = NULL;
 688                                         if (mdir == 1)
 689                                         {
 690                                                 MOD_RESULT = 0;
 691                                                 FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'v', parameters[param], true, 1));
 692                                                 if (!MOD_RESULT)
 693                                                 {
 694                                                         r = GiveVoice(user,parameters[param++],chan,status);
 695                                                 }
 696                                                 else param++;
 697                                         }
 698                                         else
 699                                         {
 700                                                 MOD_RESULT = 0;
 701                                                 FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'v', parameters[param], false, 1));
 702                                                 if (!MOD_RESULT)
 703                                                 {
 704                                                         r = TakeVoice(user,parameters[param++],chan,status);
 705                                                 }
 706                                                 else param++;
 707                                         }
 708                                         if (r)
 709                                         {
 710                                                 *outl++ = 'v';
 711                                                 strlcpy(outpars[pc++],r,MAXBUF);
 712                                         }
 713                                 break;
 714
 715                                 case 'b':
 716                                         if ((param >= pcnt)) break;
 717                                         r = NULL;
 718                                         if (mdir == 1)
 719                                         {
 720                                                 MOD_RESULT = 0;
 721                                                 FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'b', parameters[param], true, 1));
 722                                                 if (!MOD_RESULT)
 723                                                 {
 724                                                         r = AddBan(user,parameters[param++],chan,status);
 725                                                 }
 726                                                 else param++;
 727                                         }
 728                                         else
 729                                         {
 730                                                 MOD_RESULT = 0;
 731                                                 FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'b', parameters[param], false, 1));
 732                                                 if (!MOD_RESULT)
 733                                                 {
 734                                                         r = TakeBan(user,parameters[param++],chan,status);
 735                                                 }
 736                                                 else param++;
 737                                         }
 738                                         if (r)
 739                                         {
 740                                                 *outl++ = 'b';
 741                                                 strlcpy(outpars[pc++],parameters[param-1],MAXBUF);
 742                                         }
 743                                 break;
 744
 745
 746                                 case 'k':
 747                                         if ((param >= pcnt))
 748                                                 break;
 749
 750                                         if (mdir == 1)
 751                                         {
 752                                                 if (k_set)
 753                                                         break;
 754
 755                                                 if (previously_unset_k)
 756                                                         break;
 757                                                 previously_set_k = true;
 758
 759                                                 if (!*chan->key)
 760                                                 {
 761                                                         MOD_RESULT = 0;
 762                                                         FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'k', parameters[param], true, 1));
 763                                                         if (!MOD_RESULT)
 764                                                         {
 765                                                                 *outl++ = 'k';
 766                                                                 char key[MAXBUF];
 767                                                                 strlcpy(key,parameters[param++],32);
 768                                                                 strlcpy(outpars[pc++],key,MAXBUF);
 769                                                                 strlcpy(chan->key,key,MAXBUF);
 770                                                                 k_set = true;
 771                                                         }
 772                                                         else param++;
 773                                                 }
 774                                         }
 775                                         else
 776                                         {
 777                                                 /* checks on -k are case sensitive and only accurate to the
 778                                                    first 32 characters */
 779                                                 if (previously_set_k)
 780                                                         break;
 781                                                 previously_unset_k = true;
 782
 783                                                 char key[MAXBUF];
 784                                                 MOD_RESULT = 0;
 785                                                 FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'k', parameters[param], false, 1));
 786                                                 if (!MOD_RESULT)
 787                                                 {
 788                                                         strlcpy(key,parameters[param++],32);
 789                                                         /* only allow -k if correct key given */
 790                                                         if (!strcmp(chan->key,key))
 791                                                         {
 792                                                                 *outl++ = 'k';
 793                                                                 *chan->key = 0;
 794                                                                 strlcpy(outpars[pc++],key,MAXBUF);
 795                                                         }
 796                                                 }
 797                                                 else param++;
 798                                         }
 799                                 break;
 800
 801                                 case 'l':
 802                                         if (mdir == 0)
 803                                         {
 804                                                 if (previously_set_l)
 805                                                         break;
 806                                                 previously_unset_l = true;
 807                                                 MOD_RESULT = 0;
 808                                                 FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'l', "", false, 0));
 809                                                 if (!MOD_RESULT)
 810                                                 {
 811                                                         if (chan->limit)
 812                                                         {
 813                                                                 *outl++ = 'l';
 814                                                                 chan->limit = 0;
 815                                                         }
 816                                                 }
 817                                         }
 818
 819                                         if ((param >= pcnt)) break;
 820                                         if (mdir == 1)
 821                                         {
 822                                                 if (l_set)
 823                                                         break;
 824                                                 if (previously_unset_l)
 825                                                         break;
 826                                                 previously_set_l = true;
 827                                                 bool invalid = false;
 828                                                 for (char* f = parameters[param]; *f; f++)
 829                                                 {
 830                                                         if ((*f < '0') || (*f > '9'))
 831                                                         {
 832                                                                 invalid = true;
 833                                                         }
 834                                                 }
 835                                                 /* If the limit is < 1, or the new limit is the current limit, dont allow */
 836                                                 if ((atoi(parameters[param]) < 1) || ((chan->limit > 0) && (atoi(parameters[param]) == chan->limit)))
 837                                                 {
 838                                                         invalid = true;
 839                                                 }
 840
 841                                                 if (invalid)
 842                                                         break;
 843
 844                                                 MOD_RESULT = 0;
 845                                                 FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'l', parameters[param], true, 1));
 846                                                 if (!MOD_RESULT)
 847                                                 {
 848
 849                                                         chan->limit = atoi(parameters[param]);
 850
 851                                                         // reported by mech: large values cause underflow
 852                                                         if (chan->limit < 0)
 853                                                                 chan->limit = 0x7FFF;
 854                                                 }
 855
 856                                                 if (chan->limit)
 857                                                 {
 858                                                         *outl++ = 'l';
 859                                                         strlcpy(outpars[pc++],parameters[param++],MAXBUF);
 860                                                         l_set = true;
 861                                                 }
 862                                         }
 863                                 break;
 864
 865                                 case 'i':
 866                                         MOD_RESULT = 0;
 867                                         FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'i', "", mdir, 0));
 868                                         if (!MOD_RESULT)
 869                                         {
 870                                                 if (mdir)
 871                                                 {
 872                                                         if (!(chan->binarymodes & CM_INVITEONLY)) *outl++ = 'i';
 873                                                         chan->binarymodes |= CM_INVITEONLY;
 874                                                 }
 875                                                 else
 876                                                 {
 877                                                         if (chan->binarymodes & CM_INVITEONLY) *outl++ = 'i';
 878                                                         chan->binarymodes &= ~CM_INVITEONLY;
 879                                                 }
 880                                         }
 881                                 break;
 882
 883                                 case 't':
 884                                         MOD_RESULT = 0;
 885                                         FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 't', "", mdir, 0));
 886                                         if (!MOD_RESULT)
 887                                         {
 888                                                 if (mdir)
 889                                                 {
 890                                                         if (!(chan->binarymodes & CM_TOPICLOCK)) *outl++ = 't';
 891                                                         chan->binarymodes |= CM_TOPICLOCK;
 892                                                 }
 893                                                 else
 894                                                 {
 895                                                         if (chan->binarymodes & CM_TOPICLOCK) *outl++ = 't';
 896                                                         chan->binarymodes &= ~CM_TOPICLOCK;
 897                                                 }
 898                                         }
 899                                 break;
 900
 901                                 case 'n':
 902                                         MOD_RESULT = 0;
 903                                         FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'n', "", mdir, 0));
 904                                         if (!MOD_RESULT)
 905                                         {
 906                                                 if (mdir)
 907                                                 {
 908                                                         if (!(chan->binarymodes & CM_NOEXTERNAL)) *outl++ = 'n';
 909                                                         chan->binarymodes |= CM_NOEXTERNAL;
 910                                                 }
 911                                                 else
 912                                                 {
 913                                                         if (chan->binarymodes & CM_NOEXTERNAL) *outl++ = 'n';
 914                                                         chan->binarymodes &= ~CM_NOEXTERNAL;
 915                                                 }
 916                                         }
 917                                 break;
 918
 919                                 case 'm':
 920                                         MOD_RESULT = 0;
 921                                         FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'm', "", mdir, 0));
 922                                         if (!MOD_RESULT)
 923                                         {
 924                                                 if (mdir)
 925                                                 {
 926                                                         if (!(chan->binarymodes & CM_MODERATED)) *outl++ = 'm';
 927                                                         chan->binarymodes |= CM_MODERATED;
 928                                                 }
 929                                                 else
 930                                                 {
 931                                                         if (chan->binarymodes & CM_MODERATED) *outl++ = 'm';
 932                                                         chan->binarymodes &= ~CM_MODERATED;
 933                                                 }
 934                                         }
 935                                 break;
 936
 937                                 case 's':
 938                                         MOD_RESULT = 0;
 939                                         FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 's', "", mdir, 0));
 940                                         if (!MOD_RESULT)
 941                                         {
 942                                                 if (mdir)
 943                                                 {
 944                                                         if (!(chan->binarymodes & CM_SECRET)) *outl++ = 's';
 945                                                         chan->binarymodes |= CM_SECRET;
 946                                                         if (chan->binarymodes & CM_PRIVATE)
 947                                                         {
 948                                                                 chan->binarymodes &= ~CM_PRIVATE;
 949                                                                 if (mdir)
 950                                                                 {
 951                                                                         *outl++ = '-'; *outl++ = 'p'; *outl++ = '+';
 952                                                                 }
 953                                                         }
 954                                                 }
 955                                                 else
 956                                                 {
 957                                                         if (chan->binarymodes & CM_SECRET) *outl++ = 's';
 958                                                         chan->binarymodes &= ~CM_SECRET;
 959                                                 }
 960                                         }
 961                                 break;
 962
 963                                 case 'p':
 964                                         MOD_RESULT = 0;
 965                                         FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'p', "", mdir, 0));
 966                                         if (!MOD_RESULT)
 967                                         {
 968                                                 if (mdir)
 969                                                 {
 970                                                         if (!(chan->binarymodes & CM_PRIVATE)) *outl++ = 'p';
 971                                                         chan->binarymodes |= CM_PRIVATE;
 972                                                         if (chan->binarymodes & CM_SECRET)
 973                                                         {
 974                                                                 chan->binarymodes &= ~CM_SECRET;
 975                                                                 if (mdir)
 976                                                                 {
 977                                                                         *outl++ = '-'; *outl++ = 's'; *outl++ = '+';
 978                                                                 }
 979                                                         }
 980                                                 }
 981                                                 else
 982                                                 {
 983                                                         if (chan->binarymodes & CM_PRIVATE) *outl++ = 'p';
 984                                                         chan->binarymodes &= ~CM_PRIVATE;
 985                                                 }
 986                                         }
 987                                 break;
 988
 989                                 default:
 990                                         log(DEBUG,"Preprocessing custom mode %c: modelist: %s",*modechar,chan->custom_modes);
 991                                         string_list p;
 992                                         p.clear();
 993                                         if (((!strchr(chan->custom_modes,*modechar)) && (!mdir)) || ((strchr(chan->custom_modes,*modechar)) && (mdir)))
 994                                         {
 995                                                 if (!ModeIsListMode(*modechar,MT_CHANNEL))
 996                                                 {
 997                                                         log(DEBUG,"Mode %c isnt set on %s but trying to remove!",*modechar,chan->name);
 998                                                         break;
 999                                                 }
1000                                         }
1001                                         if (ModeDefined(*modechar,MT_CHANNEL))
1002                                         {
1003                                                 log(DEBUG,"A module has claimed this mode");
1004                                                 if (param<pcnt)
1005                                                 {
1006                                                         if ((ModeDefinedOn(*modechar,MT_CHANNEL)>0) && (mdir))
1007                                                         {
1008                                                                 p.push_back(parameters[param]);
1009                                                         }
1010                                                         if ((ModeDefinedOff(*modechar,MT_CHANNEL)>0) && (!mdir))
1011                                                         {
1012                                                                 p.push_back(parameters[param]);
1013                                                         }
1014                                                 }
1015                                                 bool handled = false;
1016                                                 if (param>=pcnt)
1017                                                 {
1018                                                         // we're supposed to have a parameter, but none was given... so dont handle the mode.
1019                                                         if (((ModeDefinedOn(*modechar,MT_CHANNEL)>0) && (mdir)) || ((ModeDefinedOff(*modechar,MT_CHANNEL)>0) && (!mdir)))
1020                                                         {
1021                                                                 log(DEBUG,"Not enough parameters for module-mode %c",*modechar);
1022                                                                 handled = true;
1023                                                                 param++;
1024                                                         }
1025                                                 }
1026
1027                                                 // BIG ASS IDIOTIC CODER WARNING!
1028                                                 // Using OnRawMode on another modules mode's behavour
1029                                                 // will confuse the crap out of admins! just because you CAN
1030                                                 // do it, doesnt mean you SHOULD!
1031                                                 MOD_RESULT = 0;
1032                                                 std::string para = "";
1033                                                 if (p.size())
1034                                                         para = p[0];
1035                                                 FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, *modechar, para, mdir, pcnt));
1036                                                 if (!MOD_RESULT)
1037                                                 {
1038                                                         for (int i = 0; i <= MODCOUNT; i++)
1039                                                         {
1040                                                                 if (!handled)
1041                                                                 {
1042                                                                         int t = modules[i]->OnExtendedMode(user,chan,*modechar,MT_CHANNEL,mdir,p);
1043                                                                         if (t != 0)
1044                                                                         {
1045                                                                                 log(DEBUG,"OnExtendedMode returned nonzero for a module");
1046                                                                                 if (ModeIsListMode(*modechar,MT_CHANNEL))
1047                                                                                 {
1048                                                                                         if (t == -1)
1049                                                                                         {
1050                                                                                                 //pc++;
1051                                                                                                 param++;
1052                                                                                         }
1053                                                                                         else
1054                                                                                         {
1055                                                                                                 if (param < pcnt)
1056                                                                                                 {
1057                                                                                                         *outl++ = *modechar;
1058                                                                                                 }
1059                                                                                                 strlcpy(outpars[pc++],parameters[param++],MAXBUF);
1060                                                                                         }
1061                                                                                 }
1062                                                                                 else
1063                                                                                 {
1064                                                                                         if (param < pcnt)
1065                                                                                         {
1066                                                                                                 /* Null terminate it early for the 'else' below
1067                                                                                                  * so it can use strchr (ugh)
1068                                                                                                  */
1069                                                                                                 *outl++ = *modechar;
1070                                                                                                 chan->SetCustomMode(*modechar,mdir);
1071                                                                                                 // include parameters in output if mode has them
1072                                                                                                 if ((ModeDefinedOn(*modechar,MT_CHANNEL)>0) && (mdir))
1073                                                                                                 {
1074                                                                                                         chan->SetCustomModeParam(modelist[ptr],parameters[param],mdir);
1075                                                                                                         strlcpy(outpars[pc++],parameters[param++],MAXBUF);
1076                                                                                                 }
1077                                                                                         }
1078                                                                                 }
1079                                                                                 // break, because only one module can handle the mode.
1080                                                                                 handled = true;
1081                                                                         }
1082                                                                 }
1083                                                         }
1084                                                 }
1085                                         }
1086                                         else
1087                                         {
1088                                                 WriteServ(user->fd,"472 %s %c :is unknown mode char to me",user->nick,*modechar);
1089                                         }
1090                                 break;
1091
1092                         }
1093                 }
1094         }
1095
1096         /* Null terminate it now we're done */
1097         *outl = 0;
1098
1099         outl = outlist;
1100         while (*outl && (*outl < 'A'))
1101                 outl++;
1102         /* outl now points to the first mode character after +'s and -'s */
1103         outl--;
1104         /* Now points at first mode-modifier + or - symbol */
1105
1106         char* trim = outl;
1107         /* Now we tidy off any trailing -'s etc */
1108         while (*trim++);
1109         trim--;
1110         while ((*--trim == '+') || (*trim == '-'))
1111         {
1112                 log(DEBUG,"Removed trailing modifier");
1113                 *trim = 0;
1114         }
1115
1116         /* The mode change must be at least two characters long (+ or - and at least one mode) */
1117         if (((*outl == '+') || (*outl == '-')) && *(outl+1))
1118         {
1119                 strlcpy(outstr,outl,MAXBUF);
1120                 for (ptr = 0; ptr < pc; ptr++)
1121                 {
1122                         charlcat(outstr,' ',MAXBUF);
1123                         strlcat(outstr,outpars[ptr],MAXBUF);
1124                 }
1125                 if (local)
1126                 {
1127                         log(DEBUG,"Local mode change");
1128                         WriteChannelLocal(chan, user, "MODE %s %s",chan->name,outstr);
1129                         FOREACH_MOD(I_OnMode,OnMode(user, chan, TYPE_CHANNEL, outstr));
1130                 }
1131                 else
1132                 {
1133                         if (servermode)
1134                         {
1135                                 if (!silent)
1136                                 {
1137                                         WriteChannelWithServ(Config->ServerName,chan,"MODE %s %s",chan->name,outstr);
1138                                 }
1139
1140                         }
1141                         else
1142                         {
1143                                 if (!silent)
1144                                 {
1145                                         WriteChannel(chan,user,"MODE %s %s",chan->name,outstr);
1146                                         FOREACH_MOD(I_OnMode,OnMode(user, chan, TYPE_CHANNEL, outstr));
1147                                 }
1148                         }
1149                 }
1150         }
1151 }
1152
1153 // based on sourcemodes, return true or false to determine if umode is a valid mode a user may set on themselves or others.
1154
1155 bool ModeParser::AllowedUmode(char umode, char* sourcemodes,bool adding,bool serveroverride)
1156 {
1157         log(DEBUG,"Allowed_umode: %c %s",umode,sourcemodes);
1158         // Servers can +o and -o arbitrarily
1159         if ((serveroverride == true) && (umode == 'o'))
1160         {
1161                 return true;
1162         }
1163         // RFC1459 specified modes
1164         if ((umode == 'w') || (umode == 's') || (umode == 'i'))
1165         {
1166                 log(DEBUG,"umode %c allowed by RFC1459 scemantics",umode);
1167                 return true;
1168         }
1169
1170         // user may not +o themselves or others, but an oper may de-oper other opers or themselves
1171         if ((strchr(sourcemodes,'o')) && (!adding))
1172         {
1173                 log(DEBUG,"umode %c allowed by RFC1459 scemantics",umode);
1174                 return true;
1175         }
1176         else if (umode == 'o')
1177         {
1178                 log(DEBUG,"umode %c allowed by RFC1459 scemantics",umode);
1179                 return false;
1180         }
1181
1182         // process any module-defined modes that need oper
1183         if ((ModeDefinedOper(umode,MT_CLIENT)) && (strchr(sourcemodes,'o')))
1184         {
1185                 log(DEBUG,"umode %c allowed by module handler (oper only mode)",umode);
1186                 return true;
1187         }
1188         else
1189         if (ModeDefined(umode,MT_CLIENT))
1190         {
1191                 // process any module-defined modes that don't need oper
1192                 log(DEBUG,"umode %c allowed by module handler (non-oper mode)",umode);
1193                 if ((ModeDefinedOper(umode,MT_CLIENT)) && (!strchr(sourcemodes,'o')))
1194                 {
1195                         // no, this mode needs oper, and this user 'aint got what it takes!
1196                         return false;
1197                 }
1198                 return true;
1199         }
1200
1201         // anything else - return false.
1202         log(DEBUG,"umode %c not known by any ruleset",umode);
1203         return false;
1204 }
1205
1206 bool ModeParser::ProcessModuleUmode(char umode, userrec* source, void* dest, bool adding)
1207 {
1208         userrec* s2;
1209         bool faked = false;
1210         if (!source)
1211         {
1212                 s2 = new userrec;
1213                 strlcpy(s2->nick,Config->ServerName,NICKMAX-1);
1214                 *s2->modes = 'o';
1215                 *(s2->modes+1) = 0;
1216                 s2->fd = -1;
1217                 source = s2;
1218                 faked = true;
1219         }
1220         string_list p;
1221         p.clear();
1222         if (ModeDefined(umode,MT_CLIENT))
1223         {
1224                 for (int i = 0; i <= MODCOUNT; i++)
1225                 {
1226                         if (modules[i]->OnExtendedMode(source,(void*)dest,umode,MT_CLIENT,adding,p))
1227                         {
1228                                 log(DEBUG,"Module %s claims umode %c",Config->module_names[i].c_str(),umode);
1229                                 return true;
1230                         }
1231                 }
1232                 log(DEBUG,"No module claims umode %c",umode);
1233                 if (faked)
1234                 {
1235                         delete s2;
1236                         source = NULL;
1237                 }
1238                 return false;
1239         }
1240         else
1241         {
1242                 if (faked)
1243                 {
1244                         delete s2;
1245                         source = NULL;
1246                 }
1247                 return false;
1248         }
1249 }
1250
1251 void cmd_mode::Handle (char **parameters, int pcnt, userrec *user)
1252 {
1253         chanrec* Ptr;
1254         userrec* dest;
1255         int can_change;
1256         int direction = 1;
1257         char outpars[MAXBUF];
1258         bool next_ok = true;
1259
1260         dest = Find(parameters[0]);
1261
1262         if (!user)
1263         {
1264                 return;
1265         }
1266
1267         if ((dest) && (pcnt == 1))
1268         {
1269                 WriteServ(user->fd,"221 %s :+%s",dest->nick,dest->modes);
1270                 return;
1271         }
1272
1273         if ((dest) && (pcnt > 1))
1274         {
1275                 std::string tidied = ServerInstance->ModeGrok->CompressModes(parameters[1],false);
1276                 parameters[1] = (char*)tidied.c_str();
1277
1278                 char dmodes[MAXBUF];
1279                 strlcpy(dmodes,dest->modes,MAXMODES);
1280                 log(DEBUG,"pulled up dest user modes: %s",dmodes);
1281
1282                 can_change = 0;
1283                 if (user != dest)
1284                 {
1285                         if ((strchr(user->modes,'o')) || (is_uline(user->server)))
1286                         {
1287                                 can_change = 1;
1288                         }
1289                 }
1290                 else
1291                 {
1292                         can_change = 1;
1293                 }
1294                 if (!can_change)
1295                 {
1296                         WriteServ(user->fd,"482 %s :Can't change mode for other users",user->nick);
1297                         return;
1298                 }
1299
1300                 outpars[0] = *parameters[1];
1301                 outpars[1] = 0;
1302                 direction = (*parameters[1] == '+');
1303
1304                 if ((*parameters[1] != '+') && (*parameters[1] != '-'))
1305                         return;
1306
1307                 for (char* i = parameters[1]; *i; i++)
1308                 {
1309                         if (*i == ' ')
1310                                 continue;
1311
1312                         if ((i != parameters[1]) && (*i != '+') && (*i != '-'))
1313                                 next_ok = true;
1314
1315                         if (*i == '+')
1316                         {
1317                                 if ((direction != 1) && (next_ok))
1318                                 {
1319                                         charlcat(outpars,'+',MAXBUF);
1320                                         next_ok = false;
1321                                 }
1322                                 direction = 1;
1323                         }
1324                         else
1325                         if (*i == '-')
1326                         {
1327                                 if ((direction != 0) && (next_ok))
1328                                 {
1329                                         charlcat(outpars,'-',MAXBUF);
1330                                         next_ok = false;
1331                                 }
1332                                 direction = 0;
1333                         }
1334                         else
1335                         {
1336                                 can_change = 0;
1337                                 if (strchr(user->modes,'o'))
1338                                 {
1339                                         can_change = 1;
1340                                 }
1341                                 else
1342                                 {
1343                                         if ((*i == 'i') || (*i == 'w') || (*i == 's') || (ServerInstance->ModeGrok->AllowedUmode(*i,user->modes,direction,false)))
1344                                         {
1345                                                 can_change = 1;
1346                                         }
1347                                 }
1348                                 if (can_change)
1349                                 {
1350                                         if (direction == 1)
1351                                         {
1352                                                 if ((!strchr(dmodes,*i)) && (ServerInstance->ModeGrok->AllowedUmode(*i,user->modes,true,false)))
1353                                                 {
1354                                                         if ((ServerInstance->ModeGrok->ProcessModuleUmode(*i, user, dest, direction)) || (*i == 'i') || (*i == 's') || (*i == 'w') || (*i == 'o'))
1355                                                         {
1356                                                                 charlcat(dmodes,*i,MAXMODES);
1357                                                                 charlcat(outpars,*i,MAXMODES);
1358                                                                 if (*i == 'o')
1359                                                                 {
1360                                                                         FOREACH_MOD(I_OnGlobalOper,OnGlobalOper(dest));
1361                                                                 }
1362                                                         }
1363                                                 }
1364                                         }
1365                                         else
1366                                         {
1367                                                 if ((ServerInstance->ModeGrok->AllowedUmode(*i,user->modes,false,false)) && (strchr(dmodes,*i)))
1368                                                 {
1369                                                         if ((ServerInstance->ModeGrok->ProcessModuleUmode(*i, user, dest, direction)) || (*i == 'i') || (*i == 's') || (*i == 'w') || (*i == 'o'))
1370                                                         {
1371                                                                 charlcat(outpars,*i,MAXMODES);
1372                                                                 charremove(dmodes,*i);
1373                                                                 if (*i == 'o')
1374                                                                 {
1375                                                                         *dest->oper = 0;
1376                                                                         DeleteOper(dest);
1377                                                                 }
1378                                                         }
1379                                                 }
1380                                         }
1381                                 }
1382                         }
1383                 }
1384                 if (*outpars)
1385                 {
1386                         char b[MAXBUF];
1387                         char* z = b;
1388
1389                         for (char* i = outpars; *i;)
1390                         {
1391                                 *z++ = *i++;
1392                                 if (((*i == '-') || (*i == '+')) && ((*(i+1) == '-') || (*(i+1) == '+')))
1393                                 {
1394                                         // someones playing silly buggers and trying
1395                                         // to put a +- or -+ into the line...
1396                                         i++;
1397                                 }
1398                                 if (!*(i+1))
1399                                 {
1400                                         // Someone's trying to make the last character in
1401                                         // the line be a + or - symbol.
1402                                         if ((*i == '-') || (*i == '+'))
1403                                         {
1404                                                 i++;
1405                                         }
1406                                 }
1407                         }
1408                         *z = 0;
1409
1410                         if ((*b) && (!IS_SINGLE(b,'+')) && (!IS_SINGLE(b,'-')))
1411                         {
1412                                 WriteTo(user, dest, "MODE %s :%s", dest->nick, b);
1413                                 FOREACH_MOD(I_OnMode,OnMode(user, dest, TYPE_USER, b));
1414                         }
1415
1416                         log(DEBUG,"Stripped mode line");
1417                         log(DEBUG,"Line dest is now %s",dmodes);
1418                         strlcpy(dest->modes,dmodes,MAXMODES-1);
1419
1420                 }
1421
1422                 return;
1423         }
1424
1425         Ptr = FindChan(parameters[0]);
1426         if (Ptr)
1427         {
1428                 if (pcnt == 1)
1429                 {
1430                         /* just /modes #channel */
1431                         WriteServ(user->fd,"324 %s %s +%s",user->nick, Ptr->name, chanmodes(Ptr,has_channel(user,Ptr)));
1432                         WriteServ(user->fd,"329 %s %s %d", user->nick, Ptr->name, Ptr->created);
1433                         return;
1434                 }
1435                 else
1436                 if (pcnt == 2)
1437                 {
1438                         char* mode = parameters[1];
1439                         if (*mode == '+')
1440                                 mode++;
1441                         int MOD_RESULT = 0;
1442                         FOREACH_RESULT(I_OnRawMode,OnRawMode(user, Ptr, *mode, "", false, 0));
1443                         if (!MOD_RESULT)
1444                         {
1445                                 if (*mode == 'b')
1446                                 {
1447
1448                                         for (BanList::iterator i = Ptr->bans.begin(); i != Ptr->bans.end(); i++)
1449                                         {
1450                                                 WriteServ(user->fd,"367 %s %s %s %s %d",user->nick, Ptr->name, i->data, i->set_by, i->set_time);
1451                                         }
1452                                         WriteServ(user->fd,"368 %s %s :End of channel ban list",user->nick, Ptr->name);
1453                                         return;
1454                                 }
1455                                 if ((ModeDefined(*mode,MT_CHANNEL)) && (ModeIsListMode(*mode,MT_CHANNEL)))
1456                                 {
1457                                         // list of items for an extmode
1458                                         log(DEBUG,"Calling OnSendList for all modules, list output for mode %c",*mode);
1459                                         FOREACH_MOD(I_OnSendList,OnSendList(user,Ptr,*mode));
1460                                         return;
1461                                 }
1462                         }
1463                 }
1464
1465                 if (((Ptr) && (!has_channel(user,Ptr))) && (!is_uline(user->server)) && (IS_LOCAL(user)))
1466                 {
1467                         WriteServ(user->fd,"442 %s %s :You're not on that channel!",user->nick, Ptr->name);
1468                         return;
1469                 }
1470
1471                 if (Ptr)
1472                 {
1473                         int MOD_RESULT = 0;
1474                         FOREACH_RESULT(I_OnAccessCheck,OnAccessCheck(user,NULL,Ptr,AC_GENERAL_MODE));
1475
1476                         if (MOD_RESULT == ACR_DENY)
1477                                 return;
1478                         if (MOD_RESULT == ACR_DEFAULT)
1479                         {
1480                                 if ((cstatus(user,Ptr) < STATUS_HOP) && (IS_LOCAL(user)))
1481                                 {
1482                                         WriteServ(user->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel",user->nick, Ptr->name);
1483                                         return;
1484                                 }
1485                         }
1486
1487                         ServerInstance->ModeGrok->ProcessModes(parameters,user,Ptr,cstatus(user,Ptr),pcnt,false,false,false);
1488                 }
1489         }
1490         else
1491         {
1492                 WriteServ(user->fd,"401 %s %s :No such nick/channel",user->nick, parameters[0]);
1493         }
1494 }
1495
1496
1497
1498
1499 void ModeParser::ServerMode(char **parameters, int pcnt, userrec *user)
1500 {
1501         chanrec* Ptr;
1502         userrec* dest;
1503         int can_change;
1504         int direction = 1;
1505         char outpars[MAXBUF];
1506         bool next_ok = true;
1507
1508         dest = Find(parameters[0]);
1509
1510         // fix: ChroNiCk found this - we cant use this as debug if its null!
1511         if (dest)
1512         {
1513                 log(DEBUG,"server_mode on %s",dest->nick);
1514         }
1515
1516         if ((dest) && (pcnt > 1))
1517         {
1518                 std::string tidied = ServerInstance->ModeGrok->CompressModes(parameters[1],false);
1519                 parameters[1] = (char*)tidied.c_str();
1520
1521                 char dmodes[MAXBUF];
1522                 strlcpy(dmodes,dest->modes,MAXBUF);
1523
1524                 outpars[0] = *parameters[1];
1525                 outpars[1] = 0;
1526                 direction = (*parameters[1] == '+');
1527
1528                 if ((*parameters[1] != '+') && (*parameters[1] != '-'))
1529                         return;
1530
1531                 for (char* i = parameters[1]; *i; i++)
1532                 {
1533                         if (*i == ' ')
1534                                 continue;
1535
1536                         if ((i != parameters[1]) && (*i != '+') && (*i != '-'))
1537                                 next_ok = true;
1538
1539                         if (*i == '+')
1540                         {
1541                                 if ((direction != 1) && (next_ok))
1542                                 {
1543                                         next_ok = false;
1544                                         charlcat(outpars,'+',MAXBUF);
1545                                 }
1546                                 direction = 1;
1547                         }
1548                         else
1549                         if (*i == '-')
1550                         {
1551                                 if ((direction != 0) && (next_ok))
1552                                 {
1553                                         next_ok = false;
1554                                         charlcat(outpars,'-',MAXBUF);
1555                                 }
1556                                 direction = 0;
1557                         }
1558                         else
1559                         {
1560                                 log(DEBUG,"begin mode processing entry");
1561                                 can_change = 1;
1562                                 if (can_change)
1563                                 {
1564                                         if (direction == 1)
1565                                         {
1566                                                 log(DEBUG,"umode %c being added",*i);
1567                                                 if ((!strchr(dmodes,*i)) && (ServerInstance->ModeGrok->AllowedUmode(*i,user->modes,true,true)))
1568                                                 {
1569                                                         log(DEBUG,"umode %c is an allowed umode",*i);
1570                                                         if ((ServerInstance->ModeGrok->ProcessModuleUmode(*i, user, dest, direction)) || (*i == 'i') || (*i == 's') || (*i == 'w') || (*i == 'o'))
1571                                                         {
1572                                                                 charlcat(dmodes,*i,MAXMODES);
1573                                                                 charlcat(outpars,*i,MAXMODES);
1574                                                         }
1575                                                 }
1576                                         }
1577                                         else
1578                                         {
1579                                                 // can only remove a mode they already have
1580                                                 log(DEBUG,"umode %c being removed",*i);
1581                                                 if ((ServerInstance->ModeGrok->AllowedUmode(*i,user->modes,false,true)) && (strchr(dmodes,*i)))
1582                                                 {
1583                                                         log(DEBUG,"umode %c is an allowed umode",*i);
1584                                                         if ((ServerInstance->ModeGrok->ProcessModuleUmode(*i, user, dest, direction)) || (*i == 'i') || (*i == 's') || (*i == 'w') || (*i == 'o'))
1585                                                         {
1586                                                                 charlcat(outpars,*i,MAXMODES);
1587                                                                 charremove(dmodes,*i);
1588                                                         }
1589                                                 }
1590                                         }
1591                                 }
1592                         }
1593                 }
1594                 if (*outpars)
1595                 {
1596                         char b[MAXBUF];
1597                         char* z = b;
1598
1599                         for (char* i = outpars; *i;)
1600                         {
1601                                 *z++ = *i++;
1602                                 if (((*i == '-') || (*i == '+')) && ((*(i+1) == '-') || (*(i+1) == '+')))
1603                                 {
1604                                         // someones playing silly buggers and trying
1605                                         // to put a +- or -+ into the line...
1606                                         i++;
1607                                 }
1608                                 if (!*(i+1))
1609                                 {
1610                                         // Someone's trying to make the last character in
1611                                         // the line be a + or - symbol.
1612                                         if ((*i == '-') || (*i == '+'))
1613                                         {
1614                                                 i++;
1615                                         }
1616                                 }
1617                         }
1618                         *z = 0;
1619
1620                         if ((*b) && (!IS_SINGLE(b,'+')) && (!IS_SINGLE(b,'-')))
1621                         {
1622                                 WriteTo(user, dest, "MODE %s :%s", dest->nick, b);
1623                                 FOREACH_MOD(I_OnMode,OnMode(user, dest, TYPE_USER, b));
1624                         }
1625
1626                         log(DEBUG,"Stripped mode line");
1627                         log(DEBUG,"Line dest is now %s",dmodes);
1628                         strlcpy(dest->modes,dmodes,MAXMODES-1);
1629
1630                 }
1631
1632                 return;
1633         }
1634
1635         Ptr = FindChan(parameters[0]);
1636         if (Ptr)
1637         {
1638                 ServerInstance->ModeGrok->ProcessModes(parameters,user,Ptr,STATUS_OP,pcnt,true,false,false);
1639         }
1640         else
1641         {
1642                 WriteServ(user->fd,"401 %s %s :No such nick/channel",user->nick, parameters[0]);
1643         }
1644 }