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
  76                 int MOD_RESULT = 0;
  77                 FOREACH_RESULT(I_OnAccessCheck,OnAccessCheck(user,d,chan,AC_OP));
  78
  79                 if (MOD_RESULT == ACR_DENY)
  80                         return NULL;
  81                 if (MOD_RESULT == ACR_DEFAULT)
  82                 {
  83                         if ((status < STATUS_OP) && (!is_uline(user->server)))
  84                         {
  85                                 log(DEBUG,"%s cant give ops to %s because they nave status %d and needs %d",user->nick,dest,status,STATUS_OP);
  86                                 WriteServ(user->fd,"482 %s %s :You're not a channel operator",user->nick, chan->name);
  87                                 return NULL;
  88                         }
  89                 }
  90
  91
  92                 for (unsigned int i = 0; i < d->chans.size(); i++)
  93                 {
  94                         if ((d->chans[i].channel != NULL) && (chan != NULL))
  95                         if (!strcasecmp(d->chans[i].channel->name,chan->name))
  96                         {
  97                         if (d->chans[i].uc_modes & UCMODE_OP)
  98                                 {
  99                                         /* mode already set on user, dont allow multiple */
 100                                         log(DEFAULT,"The target user given to GiveOps was already opped on the channel");
 101                                         return NULL;
 102                                 }
 103                                 d->chans[i].uc_modes = d->chans[i].uc_modes | UCMODE_OP;
 104                                 log(DEBUG,"gave ops: %s %s",d->chans[i].channel->name,d->nick);
 105                                 return d->nick;
 106                         }
 107                 }
 108                 log(DEFAULT,"The target channel given to GiveOps was not in the users mode list");
 109         }
 110         return NULL;
 111 }
 112
 113 char* ModeParser::GiveHops(userrec *user,char *dest,chanrec *chan,int status)
 114 {
 115         userrec *d;
 116
 117         if ((!user) || (!dest) || (!chan) || (!*dest))
 118         {
 119                 log(DEFAULT,"*** BUG *** GiveHops was given an invalid parameter");
 120                 return NULL;
 121         }
 122
 123         d = Find(dest);
 124         if (!d)
 125         {
 126                 WriteServ(user->fd,"401 %s %s :No such nick/channel",user->nick, dest);
 127                 return NULL;
 128         }
 129         else
 130         {
 131                 int MOD_RESULT = 0;
 132                 FOREACH_RESULT(I_OnAccessCheck,OnAccessCheck(user,d,chan,AC_HALFOP));
 133
 134                 if (MOD_RESULT == ACR_DENY)
 135                         return NULL;
 136                 if (MOD_RESULT == ACR_DEFAULT)
 137                 {
 138                         if ((status < STATUS_OP) && (!is_uline(user->server)))
 139                         {
 140                                 WriteServ(user->fd,"482 %s %s :You're not a channel operator",user->nick, chan->name);
 141                                 return NULL;
 142                         }
 143                 }
 144
 145                 for (unsigned int i = 0; i < d->chans.size(); i++)
 146                 {
 147                         if ((d->chans[i].channel != NULL) && (chan != NULL))
 148                         if (!strcasecmp(d->chans[i].channel->name,chan->name))
 149                         {
 150                                 if (d->chans[i].uc_modes & UCMODE_HOP)
 151                                 {
 152                                         /* mode already set on user, dont allow multiple */
 153                                         return NULL;
 154                                 }
 155                                 d->chans[i].uc_modes = d->chans[i].uc_modes | UCMODE_HOP;
 156                                 log(DEBUG,"gave h-ops: %s %s",d->chans[i].channel->name,d->nick);
 157                                 return d->nick;
 158                         }
 159                 }
 160         }
 161         return NULL;
 162 }
 163
 164 char* ModeParser::GiveVoice(userrec *user,char *dest,chanrec *chan,int status)
 165 {
 166         userrec *d;
 167
 168         if ((!user) || (!dest) || (!chan) || (!*dest))
 169         {
 170                 log(DEFAULT,"*** BUG *** GiveVoice was given an invalid parameter");
 171                 return NULL;
 172         }
 173
 174         d = Find(dest);
 175         if (!d)
 176         {
 177                 WriteServ(user->fd,"401 %s %s :No such nick/channel",user->nick, dest);
 178                 return NULL;
 179         }
 180         else
 181         {
 182                 int MOD_RESULT = 0;
 183                 FOREACH_RESULT(I_OnAccessCheck,OnAccessCheck(user,d,chan,AC_VOICE));
 184
 185                 if (MOD_RESULT == ACR_DENY)
 186                         return NULL;
 187                 if (MOD_RESULT == ACR_DEFAULT)
 188                 {
 189                         if ((status < STATUS_HOP) && (!is_uline(user->server)))
 190                         {
 191                                 WriteServ(user->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel",user->nick, chan->name);
 192                                 return NULL;
 193                         }
 194                 }
 195
 196                 for (unsigned int i = 0; i < d->chans.size(); i++)
 197                 {
 198                         if ((d->chans[i].channel != NULL) && (chan != NULL))
 199                         if (!strcasecmp(d->chans[i].channel->name,chan->name))
 200                         {
 201                                 if (d->chans[i].uc_modes & UCMODE_VOICE)
 202                                 {
 203                                         /* mode already set on user, dont allow multiple */
 204                                         return NULL;
 205                                 }
 206                                 d->chans[i].uc_modes = d->chans[i].uc_modes | UCMODE_VOICE;
 207                                 log(DEBUG,"gave voice: %s %s",d->chans[i].channel->name,d->nick);
 208                                 return d->nick;
 209                         }
 210                 }
 211         }
 212         return NULL;
 213 }
 214
 215 char* ModeParser::TakeOps(userrec *user,char *dest,chanrec *chan,int status)
 216 {
 217         userrec *d;
 218
 219         if ((!user) || (!dest) || (!chan) || (!*dest))
 220         {
 221                 log(DEFAULT,"*** BUG *** TakeOps was given an invalid parameter");
 222                 return NULL;
 223         }
 224
 225         d = Find(dest);
 226         if (!d)
 227         {
 228                 log(DEBUG,"TakeOps couldnt resolve the target nickname: %s",dest);
 229                 WriteServ(user->fd,"401 %s %s :No such nick/channel",user->nick, dest);
 230                 return NULL;
 231         }
 232         else
 233         {
 234                 int MOD_RESULT = 0;
 235                 FOREACH_RESULT(I_OnAccessCheck,OnAccessCheck(user,d,chan,AC_DEOP));
 236
 237                 if (MOD_RESULT == ACR_DENY)
 238                         return NULL;
 239                 if (MOD_RESULT == ACR_DEFAULT)
 240                 {
 241                         if ((status < STATUS_OP) && (!is_uline(user->server)))
 242                         {
 243                                 WriteServ(user->fd,"482 %s %s :You are not a channel operator",user->nick, chan->name);
 244                                 return NULL;
 245                         }
 246                 }
 247
 248                 for (unsigned int i = 0; i < d->chans.size(); i++)
 249                 {
 250                         if ((d->chans[i].channel != NULL) && (chan != NULL))
 251                         if (!strcasecmp(d->chans[i].channel->name,chan->name))
 252                         {
 253                                 if ((d->chans[i].uc_modes & UCMODE_OP) == 0)
 254                                 {
 255                                         /* mode already set on user, dont allow multiple */
 256                                         return NULL;
 257                                 }
 258                                 d->chans[i].uc_modes ^= UCMODE_OP;
 259                                 log(DEBUG,"took ops: %s %s",d->chans[i].channel->name,d->nick);
 260                                 return d->nick;
 261                         }
 262                 }
 263                 log(DEBUG,"TakeOps couldnt locate the target channel in the target users list");
 264         }
 265         return NULL;
 266 }
 267
 268 char* ModeParser::TakeHops(userrec *user,char *dest,chanrec *chan,int status)
 269 {
 270         userrec *d;
 271
 272         if ((!user) || (!dest) || (!chan) || (!*dest))
 273         {
 274                 log(DEFAULT,"*** BUG *** TakeHops was given an invalid parameter");
 275                 return NULL;
 276         }
 277
 278         d = Find(dest);
 279         if (!d)
 280         {
 281                 WriteServ(user->fd,"401 %s %s :No such nick/channel",user->nick, dest);
 282                 return NULL;
 283         }
 284         else
 285         {
 286                 int MOD_RESULT = 0;
 287                 FOREACH_RESULT(I_OnAccessCheck,OnAccessCheck(user,d,chan,AC_DEHALFOP));
 288
 289                 if (MOD_RESULT == ACR_DENY)
 290                         return NULL;
 291                 if (MOD_RESULT == ACR_DEFAULT)
 292                 {
 293                         /* Tweak by Brain suggested by w00t, allow a halfop to dehalfop themselves */
 294                         if ((user != d) && ((status < STATUS_OP) && (!is_uline(user->server))))
 295                         {
 296                                 WriteServ(user->fd,"482 %s %s :You are not a channel operator",user->nick, chan->name);
 297                                 return NULL;
 298                         }
 299                 }
 300
 301                 for (unsigned int i = 0; i < d->chans.size(); i++)
 302                 {
 303                         if ((d->chans[i].channel != NULL) && (chan != NULL))
 304                         if (!strcasecmp(d->chans[i].channel->name,chan->name))
 305                         {
 306                                 if ((d->chans[i].uc_modes & UCMODE_HOP) == 0)
 307                                 {
 308                                         /* mode already set on user, dont allow multiple */
 309                                         return NULL;
 310                                 }
 311                                 d->chans[i].uc_modes ^= UCMODE_HOP;
 312                                 log(DEBUG,"took h-ops: %s %s",d->chans[i].channel->name,d->nick);
 313                                 return d->nick;
 314                         }
 315                 }
 316         }
 317         return NULL;
 318 }
 319
 320 char* ModeParser::TakeVoice(userrec *user,char *dest,chanrec *chan,int status)
 321 {
 322         userrec *d;
 323
 324         if ((!user) || (!dest) || (!chan) || (!*dest))
 325         {
 326                 log(DEFAULT,"*** BUG *** TakeVoice was given an invalid parameter");
 327                 return NULL;
 328         }
 329
 330         d = Find(dest);
 331         if (!d)
 332         {
 333                 WriteServ(user->fd,"401 %s %s :No such nick/channel",user->nick, dest);
 334                 return NULL;
 335         }
 336         else
 337         {
 338                 int MOD_RESULT = 0;
 339                 FOREACH_RESULT(I_OnAccessCheck,OnAccessCheck(user,d,chan,AC_DEVOICE));
 340
 341                 if (MOD_RESULT == ACR_DENY)
 342                         return NULL;
 343                 if (MOD_RESULT == ACR_DEFAULT)
 344                 {
 345                         if ((status < STATUS_HOP) && (!is_uline(user->server)))
 346                         {
 347                                 WriteServ(user->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel",user->nick, chan->name);
 348                                 return NULL;
 349                         }
 350                 }
 351
 352                 for (unsigned int i = 0; i < d->chans.size(); i++)
 353                 {
 354                         if ((d->chans[i].channel != NULL) && (chan != NULL))
 355                         if (!strcasecmp(d->chans[i].channel->name,chan->name))
 356                         {
 357                                 if ((d->chans[i].uc_modes & UCMODE_VOICE) == 0)
 358                                 {
 359                                         /* mode already set on user, dont allow multiple */
 360                                         return NULL;
 361                                 }
 362                                 d->chans[i].uc_modes ^= UCMODE_VOICE;
 363                                 log(DEBUG,"took voice: %s %s",d->chans[i].channel->name,d->nick);
 364                                 return d->nick;
 365                         }
 366                 }
 367         }
 368         return NULL;
 369 }
 370
 371 char* ModeParser::AddBan(userrec *user,char *dest,chanrec *chan,int status)
 372 {
 373         BanItem b;
 374         int toomanyexclamation = 0;
 375         int toomanyat = 0;
 376
 377         if ((!user) || (!dest) || (!chan) || (!*dest))
 378         {
 379                 log(DEFAULT,"*** BUG *** AddBan was given an invalid parameter");
 380                 return NULL;
 381         }
 382
 383         for (char* i = dest; *i; i++)
 384         {
 385                 if ((*i < 32) || (*i > 126))
 386                 {
 387                         return NULL;
 388                 }
 389                 else if (*i == '!')
 390                 {
 391                         toomanyexclamation++;
 392                 }
 393                 else if (*i == '@')
 394                 {
 395                         toomanyat++;
 396                 }
 397         }
 398
 399         if (toomanyexclamation != 1 || toomanyat != 1)
 400                 /*
 401                  * this stops sillyness like n!u!u!u@h, though note that most
 402                  * ircds don't actually verify banmask validity. --w00t
 403                  */
 404                 return NULL;
 405
 406         long maxbans = GetMaxBans(chan->name);
 407         if ((unsigned)chan->bans.size() > (unsigned)maxbans)
 408         {
 409                 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);
 410                 return NULL;
 411         }
 412
 413         log(DEBUG,"AddBan: %s %s",chan->name,user->nick);
 414
 415         int MOD_RESULT = 0;
 416         FOREACH_RESULT(I_OnAddBan,OnAddBan(user,chan,dest));
 417         if (MOD_RESULT)
 418                 return NULL;
 419
 420         TidyBan(dest);
 421         for (BanList::iterator i = chan->bans.begin(); i != chan->bans.end(); i++)
 422         {
 423                 if (!strcasecmp(i->data,dest))
 424                 {
 425                         // dont allow a user to set the same ban twice
 426                         return NULL;
 427                 }
 428         }
 429
 430         b.set_time = TIME;
 431         strlcpy(b.data,dest,MAXBUF);
 432         strlcpy(b.set_by,user->nick,NICKMAX);
 433         chan->bans.push_back(b);
 434         return dest;
 435 }
 436
 437 char* ModeParser::TakeBan(userrec *user,char *dest,chanrec *chan,int status)
 438 {
 439         if ((!user) || (!dest) || (!chan) || (!*dest)) {
 440                 log(DEFAULT,"*** BUG *** TakeBan was given an invalid parameter");
 441                 return 0;
 442         }
 443
 444         log(DEBUG,"del_ban: %s %s",chan->name,user->nick);
 445         for (BanList::iterator i = chan->bans.begin(); i != chan->bans.end(); i++)
 446         {
 447                 if (!strcasecmp(i->data,dest))
 448                 {
 449                         int MOD_RESULT = 0;
 450                         FOREACH_RESULT(I_OnDelBan,OnDelBan(user,chan,dest));
 451                         if (MOD_RESULT)
 452                                 return NULL;
 453                         chan->bans.erase(i);
 454                         return dest;
 455                 }
 456         }
 457         return NULL;
 458 }
 459
 460 // tidies up redundant modes, e.g. +nt-nt+i becomes +-+i,
 461 // a section further down the chain tidies up the +-+- crap.
 462 std::string ModeParser::CompressModes(std::string modes,bool channelmodes)
 463 {
 464         int counts[127];
 465         bool active[127];
 466         memset(counts,0,sizeof(counts));
 467         memset(active,0,sizeof(active));
 468         for (unsigned int i = 0; i < modes.length(); i++)
 469         {
 470                 if ((modes[i] == '+') || (modes[i] == '-'))
 471                         continue;
 472                 if (channelmodes)
 473                 {
 474                         if ((strchr("itnmsp",modes[i])) || ((ModeDefined(modes[i],MT_CHANNEL)) && (ModeDefinedOn(modes[i],MT_CHANNEL)==0) && (ModeDefinedOff(modes[i],MT_CHANNEL)==0)))
 475                         {
 476                                 log(DEBUG,"Tidy mode %c",modes[i]);
 477                                 counts[(unsigned int)modes[i]]++;
 478                                 active[(unsigned int)modes[i]] = true;
 479                         }
 480                 }
 481                 else
 482                 {
 483                         log(DEBUG,"Tidy mode %c",modes[i]);
 484                         counts[(unsigned int)modes[i]]++;
 485                         active[(unsigned int)modes[i]] = true;
 486                 }
 487         }
 488         for (int j = 65; j < 127; j++)
 489         {
 490                 if ((counts[j] > 1) && (active[j] == true))
 491                 {
 492                         static char v[2];
 493                         v[0] = (unsigned char)j;
 494                         v[1] = '\0';
 495                         std::string mode_str = v;
 496                         std::string::size_type pos = modes.find(mode_str);
 497                         if (pos != std::string::npos)
 498                         {
 499                                 log(DEBUG,"all occurances of mode %c to be deleted...",(unsigned char)j);
 500                                 while (modes.find(mode_str) != std::string::npos)
 501                                         modes.erase(modes.find(mode_str),1);
 502                                 log(DEBUG,"New mode line: %s",modes.c_str());
 503                         }
 504                 }
 505         }
 506         return modes;
 507 }
 508
 509 void ModeParser::ProcessModes(char **parameters,userrec* user,chanrec *chan,int status, int pcnt, bool servermode, bool silent, bool local)
 510 {
 511         if (!parameters) {
 512                 log(DEFAULT,"*** BUG *** process_modes was given an invalid parameter");
 513                 return;
 514         }
 515
 516         char modelist[MAXBUF];
 517         char outlist[MAXBUF];
 518         char outstr[MAXBUF];
 519         char outpars[32][MAXBUF];
 520         int param = 2;
 521         int pc = 0;
 522         int ptr = 0;
 523         int mdir = 1;
 524         char* r = NULL;
 525         bool k_set = false, l_set = false, previously_set_l = false, previously_unset_l = false, previously_set_k = false, previously_unset_k = false;
 526
 527         if (pcnt < 2)
 528         {
 529                 return;
 530         }
 531
 532         int MOD_RESULT = 0;
 533         FOREACH_RESULT(I_OnAccessCheck,OnAccessCheck(user,NULL,chan,AC_GENERAL_MODE));
 534
 535         if (MOD_RESULT == ACR_DENY)
 536                 return;
 537
 538         log(DEBUG,"process_modes: start: parameters=%d",pcnt);
 539
 540         strlcpy(modelist,parameters[1],MAXBUF); /* mode list, e.g. +oo-o *
 541                                                  * parameters[2] onwards are parameters for
 542                                                  * modes that require them :) */
 543         *outlist = '+';
 544         *(outlist+1) = 0;
 545         mdir = 1;
 546
 547         log(DEBUG,"process_modes: modelist: %s",modelist);
 548
 549         std::string tidied = this->CompressModes(modelist,true);
 550         strlcpy(modelist,tidied.c_str(),MAXBUF);
 551
 552         int len = tidied.length();
 553         while (modelist[len-1] == ' ')
 554                 modelist[--len] = '\0';
 555
 556         for (char* modechar = modelist; *modechar; ptr++, modechar++)
 557         {
 558                 r = NULL;
 559
 560                 {
 561                         switch (*modechar)
 562                         {
 563                                 case '-':
 564                                         if (mdir != 0)
 565                                         {
 566                                                 int t = strlen(outlist)-1;
 567                                                 if ((outlist[t] == '+') || (outlist[t] == '-'))
 568                                                 {
 569                                                         outlist[t] = '-';
 570                                                 }
 571                                                 else
 572                                                 {
 573                                                         strcat(outlist,"-");
 574                                                 }
 575                                         }
 576                                         mdir = 0;
 577
 578                                 break;
 579
 580                                 case '+':
 581                                         if (mdir != 1)
 582                                         {
 583                                                 int t = strlen(outlist)-1;
 584                                                 if ((outlist[t] == '+') || (outlist[t] == '-'))
 585                                                 {
 586                                                         outlist[t] = '+';
 587                                                 }
 588                                                 else
 589                                                 {
 590                                                         strcat(outlist,"+");
 591                                                 }
 592                                         }
 593                                         mdir = 1;
 594                                 break;
 595
 596                                 case 'o':
 597                                         log(DEBUG,"Ops");
 598                                         if ((param >= pcnt)) break;
 599                                         log(DEBUG,"Enough parameters left");
 600                                         if (mdir == 1)
 601                                         {
 602                                                 MOD_RESULT = 0;
 603                                                 FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'o', parameters[param], true, 1));
 604                                                 if (!MOD_RESULT)
 605                                                 {
 606                                                         log(DEBUG,"calling GiveOps");
 607                                                         r = GiveOps(user,parameters[param++],chan,status);
 608                                                 }
 609                                                 else param++;
 610                                         }
 611                                         else
 612                                         {
 613                                                 MOD_RESULT = 0;
 614                                                 FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'o', parameters[param], false, 1));
 615                                                 if (!MOD_RESULT)
 616                                                 {
 617                                                         log(DEBUG,"calling TakeOps");
 618                                                         r = TakeOps(user,parameters[param++],chan,status);
 619                                                 }
 620                                                 else param++;
 621                                         }
 622                                         if (r)
 623                                         {
 624                                                 strlcat(outlist,"o",MAXBUF);
 625                                                 strlcpy(outpars[pc++],r,MAXBUF);
 626                                         }
 627                                 break;
 628
 629                                 case 'h':
 630                                         if (((param >= pcnt)) || (!Config->AllowHalfop)) break;
 631                                         if (mdir == 1)
 632                                         {
 633                                                 MOD_RESULT = 0;
 634                                                 FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'h', parameters[param], true, 1));
 635                                                 if (!MOD_RESULT)
 636                                                 {
 637                                                         r = GiveHops(user,parameters[param++],chan,status);
 638                                                 }
 639                                                 else param++;
 640                                         }
 641                                         else
 642                                         {
 643                                                 MOD_RESULT = 0;
 644                                                 FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'h', parameters[param], false, 1));
 645                                                 if (!MOD_RESULT)
 646                                                 {
 647                                                         r = TakeHops(user,parameters[param++],chan,status);
 648                                                 }
 649                                                 else param++;
 650                                         }
 651                                         if (r)
 652                                         {
 653                                                 strlcat(outlist,"h",MAXBUF);
 654                                                 strlcpy(outpars[pc++],r,MAXBUF);
 655                                         }
 656                                 break;
 657
 658
 659                                 case 'v':
 660                                         if ((param >= pcnt)) break;
 661                                         if (mdir == 1)
 662                                         {
 663                                                 MOD_RESULT = 0;
 664                                                 FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'v', parameters[param], true, 1));
 665                                                 if (!MOD_RESULT)
 666                                                 {
 667                                                         r = GiveVoice(user,parameters[param++],chan,status);
 668                                                 }
 669                                                 else param++;
 670                                         }
 671                                         else
 672                                         {
 673                                                 MOD_RESULT = 0;
 674                                                 FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'v', parameters[param], false, 1));
 675                                                 if (!MOD_RESULT)
 676                                                 {
 677                                                         r = TakeVoice(user,parameters[param++],chan,status);
 678                                                 }
 679                                                 else param++;
 680                                         }
 681                                         if (r)
 682                                         {
 683                                                 strlcat(outlist,"v",MAXBUF);
 684                                                 strlcpy(outpars[pc++],r,MAXBUF);
 685                                         }
 686                                 break;
 687
 688                                 case 'b':
 689                                         if ((param >= pcnt)) break;
 690                                         if (mdir == 1)
 691                                         {
 692                                                 MOD_RESULT = 0;
 693                                                 FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'b', parameters[param], true, 1));
 694                                                 if (!MOD_RESULT)
 695                                                 {
 696                                                         r = AddBan(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, 'b', parameters[param], false, 1));
 704                                                 if (!MOD_RESULT)
 705                                                 {
 706                                                         r = TakeBan(user,parameters[param++],chan,status);
 707                                                 }
 708                                                 else param++;
 709                                         }
 710                                         if (r)
 711                                         {
 712                                                 strlcat(outlist,"b",MAXBUF);
 713                                                 strlcpy(outpars[pc++],parameters[param-1],MAXBUF);
 714                                         }
 715                                 break;
 716
 717
 718                                 case 'k':
 719                                         if ((param >= pcnt))
 720                                                 break;
 721
 722                                         if (mdir == 1)
 723                                         {
 724                                                 if (k_set)
 725                                                         break;
 726
 727                                                 if (previously_unset_k)
 728                                                         break;
 729                                                 previously_set_k = true;
 730
 731                                                 if (!*chan->key)
 732                                                 {
 733                                                         MOD_RESULT = 0;
 734                                                         FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'k', parameters[param], true, 1));
 735                                                         if (!MOD_RESULT)
 736                                                         {
 737                                                                 strcat(outlist,"k");
 738                                                                 char key[MAXBUF];
 739                                                                 strlcpy(key,parameters[param++],32);
 740                                                                 strlcpy(outpars[pc++],key,MAXBUF);
 741                                                                 strlcpy(chan->key,key,MAXBUF);
 742                                                                 k_set = true;
 743                                                         }
 744                                                         else param++;
 745                                                 }
 746                                         }
 747                                         else
 748                                         {
 749                                                 /* checks on -k are case sensitive and only accurate to the
 750                                                    first 32 characters */
 751                                                 if (previously_set_k)
 752                                                         break;
 753                                                 previously_unset_k = true;
 754
 755                                                 char key[MAXBUF];
 756                                                 MOD_RESULT = 0;
 757                                                 FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'k', parameters[param], false, 1));
 758                                                 if (!MOD_RESULT)
 759                                                 {
 760                                                         strlcpy(key,parameters[param++],32);
 761                                                         /* only allow -k if correct key given */
 762                                                         if (!strcmp(chan->key,key))
 763                                                         {
 764                                                                 strlcat(outlist,"k",MAXBUF);
 765                                                                 strlcpy(chan->key,"",MAXBUF);
 766                                                                 strlcpy(outpars[pc++],key,MAXBUF);
 767                                                         }
 768                                                 }
 769                                                 else param++;
 770                                         }
 771                                 break;
 772
 773                                 case 'l':
 774                                         if (mdir == 0)
 775                                         {
 776                                                 if (previously_set_l)
 777                                                         break;
 778                                                 previously_unset_l = true;
 779                                                 MOD_RESULT = 0;
 780                                                 FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'l', "", false, 0));
 781                                                 if (!MOD_RESULT)
 782                                                 {
 783                                                         if (chan->limit)
 784                                                         {
 785                                                                 strcat(outlist,"l");
 786                                                                 chan->limit = 0;
 787                                                         }
 788                                                 }
 789                                         }
 790
 791                                         if ((param >= pcnt)) break;
 792                                         if (mdir == 1)
 793                                         {
 794                                                 if (l_set)
 795                                                         break;
 796                                                 if (previously_unset_l)
 797                                                         break;
 798                                                 previously_set_l = true;
 799                                                 bool invalid = false;
 800                                                 for (char* f = parameters[param]; *f; f++)
 801                                                 {
 802                                                         if ((*f < '0') || (*f > '9'))
 803                                                         {
 804                                                                 invalid = true;
 805                                                         }
 806                                                 }
 807                                                 /* If the limit is < 1, or the new limit is the current limit, dont allow */
 808                                                 if ((atoi(parameters[param]) < 1) || ((chan->limit > 0) && (atoi(parameters[param]) == chan->limit)))
 809                                                 {
 810                                                         invalid = true;
 811                                                 }
 812
 813                                                 if (invalid)
 814                                                         break;
 815
 816                                                 MOD_RESULT = 0;
 817                                                 FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'l', parameters[param], true, 1));
 818                                                 if (!MOD_RESULT)
 819                                                 {
 820
 821                                                         chan->limit = atoi(parameters[param]);
 822
 823                                                         // reported by mech: large values cause underflow
 824                                                         if (chan->limit < 0)
 825                                                                 chan->limit = 0x7FFF;
 826                                                 }
 827
 828                                                 if (chan->limit)
 829                                                 {
 830                                                         strlcat(outlist,"l",MAXBUF);
 831                                                         strlcpy(outpars[pc++],parameters[param++],MAXBUF);
 832                                                         l_set = true;
 833                                                 }
 834                                         }
 835                                 break;
 836
 837                                 case 'i':
 838                                         MOD_RESULT = 0;
 839                                         FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'i', "", mdir, 0));
 840                                         if (!MOD_RESULT)
 841                                         {
 842                                                 if (mdir)
 843                                                 {
 844                                                         if (!(chan->binarymodes & CM_INVITEONLY)) strlcat(outlist,"i",MAXBUF);
 845                                                         chan->binarymodes |= CM_INVITEONLY;
 846                                                 }
 847                                                 else
 848                                                 {
 849                                                         if (chan->binarymodes & CM_INVITEONLY) strlcat(outlist,"i",MAXBUF);
 850                                                         chan->binarymodes &= ~CM_INVITEONLY;
 851                                                 }
 852                                         }
 853                                 break;
 854
 855                                 case 't':
 856                                         MOD_RESULT = 0;
 857                                         FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 't', "", mdir, 0));
 858                                         if (!MOD_RESULT)
 859                                         {
 860                                                 if (mdir)
 861                                                 {
 862                                                         if (!(chan->binarymodes & CM_TOPICLOCK)) strlcat(outlist,"t",MAXBUF);
 863                                                         chan->binarymodes |= CM_TOPICLOCK;
 864                                                 }
 865                                                 else
 866                                                 {
 867                                                         if (chan->binarymodes & CM_NOEXTERNAL) strlcat(outlist,"t",MAXBUF);
 868                                                         chan->binarymodes &= ~CM_TOPICLOCK;
 869                                                 }
 870                                         }
 871                                 break;
 872
 873                                 case 'n':
 874                                         MOD_RESULT = 0;
 875                                         FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'n', "", mdir, 0));
 876                                         if (!MOD_RESULT)
 877                                         {
 878                                                 if (mdir)
 879                                                 {
 880                                                         if (!(chan->binarymodes & CM_NOEXTERNAL)) strlcat(outlist,"n",MAXBUF);
 881                                                         chan->binarymodes |= CM_NOEXTERNAL;
 882                                                 }
 883                                                 else
 884                                                 {
 885                                                         if (chan->binarymodes & CM_NOEXTERNAL) strlcat(outlist,"n",MAXBUF);
 886                                                         chan->binarymodes &= ~CM_NOEXTERNAL;
 887                                                 }
 888                                         }
 889                                 break;
 890
 891                                 case 'm':
 892                                         MOD_RESULT = 0;
 893                                         FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'm', "", mdir, 0));
 894                                         if (!MOD_RESULT)
 895                                         {
 896                                                 if (mdir)
 897                                                 {
 898                                                         if (!(chan->binarymodes & CM_MODERATED)) strlcat(outlist,"m",MAXBUF);
 899                                                         chan->binarymodes |= CM_MODERATED;
 900                                                 }
 901                                                 else
 902                                                 {
 903                                                         if (chan->binarymodes & CM_MODERATED) strlcat(outlist,"m",MAXBUF);
 904                                                         chan->binarymodes &= ~CM_MODERATED;
 905                                                 }
 906                                         }
 907                                 break;
 908
 909                                 case 's':
 910                                         MOD_RESULT = 0;
 911                                         FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 's', "", mdir, 0));
 912                                         if (!MOD_RESULT)
 913                                         {
 914                                                 if (mdir)
 915                                                 {
 916                                                         if (!(chan->binarymodes & CM_SECRET)) strlcat(outlist,"s",MAXBUF);
 917                                                         chan->binarymodes |= CM_SECRET;
 918                                                         if (chan->binarymodes & CM_PRIVATE)
 919                                                         {
 920                                                                 chan->binarymodes &= ~CM_PRIVATE;
 921                                                                 if (mdir)
 922                                                                 {
 923                                                                         strlcat(outlist,"-p+",MAXBUF);
 924                                                                 }
 925                                                         }
 926                                                 }
 927                                                 else
 928                                                 {
 929                                                         if (chan->binarymodes & CM_SECRET) strlcat(outlist,"s",MAXBUF);
 930                                                         chan->binarymodes &= ~CM_SECRET;
 931                                                 }
 932                                         }
 933                                 break;
 934
 935                                 case 'p':
 936                                         MOD_RESULT = 0;
 937                                         FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'p', "", mdir, 0));
 938                                         if (!MOD_RESULT)
 939                                         {
 940                                                 if (mdir)
 941                                                 {
 942                                                         if (!(chan->binarymodes & CM_PRIVATE)) strlcat(outlist,"p",MAXBUF);
 943                                                         chan->binarymodes |= CM_PRIVATE;
 944                                                         if (chan->binarymodes & CM_SECRET)
 945                                                         {
 946                                                                 chan->binarymodes &= ~CM_SECRET;
 947                                                                 if (mdir)
 948                                                                 {
 949                                                                         strlcat(outlist,"-s+",MAXBUF);
 950                                                                 }
 951                                                         }
 952                                                 }
 953                                                 else
 954                                                 {
 955                                                         if (chan->binarymodes & CM_PRIVATE) strlcat(outlist,"p",MAXBUF);
 956                                                         chan->binarymodes &= ~CM_PRIVATE;
 957                                                 }
 958                                         }
 959                                 break;
 960
 961                                 default:
 962                                         log(DEBUG,"Preprocessing custom mode %c: modelist: %s",*modechar,chan->custom_modes);
 963                                         string_list p;
 964                                         p.clear();
 965                                         if (((!strchr(chan->custom_modes,*modechar)) && (!mdir)) || ((strchr(chan->custom_modes,*modechar)) && (mdir)))
 966                                         {
 967                                                 if (!ModeIsListMode(*modechar,MT_CHANNEL))
 968                                                 {
 969                                                         log(DEBUG,"Mode %c isnt set on %s but trying to remove!",*modechar,chan->name);
 970                                                         break;
 971                                                 }
 972                                         }
 973                                         if (ModeDefined(*modechar,MT_CHANNEL))
 974                                         {
 975                                                 log(DEBUG,"A module has claimed this mode");
 976                                                 if (param<pcnt)
 977                                                 {
 978                                                         if ((ModeDefinedOn(*modechar,MT_CHANNEL)>0) && (mdir))
 979                                                         {
 980                                                                 p.push_back(parameters[param]);
 981                                                         }
 982                                                         if ((ModeDefinedOff(*modechar,MT_CHANNEL)>0) && (!mdir))
 983                                                         {
 984                                                                 p.push_back(parameters[param]);
 985                                                         }
 986                                                 }
 987                                                 bool handled = false;
 988                                                 if (param>=pcnt)
 989                                                 {
 990                                                         // we're supposed to have a parameter, but none was given... so dont handle the mode.
 991                                                         if (((ModeDefinedOn(*modechar,MT_CHANNEL)>0) && (mdir)) || ((ModeDefinedOff(*modechar,MT_CHANNEL)>0) && (!mdir)))
 992                                                         {
 993                                                                 log(DEBUG,"Not enough parameters for module-mode %c",*modechar);
 994                                                                 handled = true;
 995                                                                 param++;
 996                                                         }
 997                                                 }
 998
 999                                                 // BIG ASS IDIOTIC CODER WARNING!
1000                                                 // Using OnRawMode on another modules mode's behavour
1001                                                 // will confuse the crap out of admins! just because you CAN
1002                                                 // do it, doesnt mean you SHOULD!
1003                                                 MOD_RESULT = 0;
1004                                                 std::string para = "";
1005                                                 if (p.size())
1006                                                         para = p[0];
1007                                                 FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, *modechar, para, mdir, pcnt));
1008                                                 if (!MOD_RESULT)
1009                                                 {
1010                                                         for (int i = 0; i <= MODCOUNT; i++)
1011                                                         {
1012                                                                 if (!handled)
1013                                                                 {
1014                                                                         int t = modules[i]->OnExtendedMode(user,chan,*modechar,MT_CHANNEL,mdir,p);
1015                                                                         if (t != 0)
1016                                                                         {
1017                                                                                 log(DEBUG,"OnExtendedMode returned nonzero for a module");
1018                                                                                 char app[] = {*modechar, 0};
1019                                                                                 if (ModeIsListMode(*modechar,MT_CHANNEL))
1020                                                                                 {
1021                                                                                         if (t == -1)
1022                                                                                         {
1023                                                                                                 //pc++;
1024                                                                                                 param++;
1025                                                                                         }
1026                                                                                         else
1027                                                                                         {
1028                                                                                                 if (ptr>0)
1029                                                                                                 {
1030                                                                                                         strlcat(outlist, app,MAXBUF);
1031                                                                                                 }
1032                                                                                                 strlcpy(outpars[pc++],parameters[param++],MAXBUF);
1033                                                                                         }
1034                                                                                 }
1035                                                                                 else
1036                                                                                 {
1037                                                                                         if (ptr>0)
1038                                                                                         {
1039                                                                                                 if ((modelist[ptr-1] == '+') || (modelist[ptr-1] == '-'))
1040                                                                                                 {
1041                                                                                                         strlcat(outlist, app,MAXBUF);
1042                                                                                                 }
1043                                                                                                 else if (!strchr(outlist,*modechar))
1044                                                                                                 {
1045                                                                                                         strlcat(outlist, app,MAXBUF);
1046                                                                                                 }
1047                                                                                         }
1048                                                                                         chan->SetCustomMode(*modechar,mdir);
1049                                                                                         // include parameters in output if mode has them
1050                                                                                         if ((ModeDefinedOn(*modechar,MT_CHANNEL)>0) && (mdir))
1051                                                                                         {
1052                                                                                                 chan->SetCustomModeParam(modelist[ptr],parameters[param],mdir);
1053                                                                                                 strlcpy(outpars[pc++],parameters[param++],MAXBUF);
1054                                                                                         }
1055                                                                                 }
1056                                                                                 // break, because only one module can handle the mode.
1057                                                                                 handled = true;
1058                                                                         }
1059                                                                 }
1060                                                         }
1061                                                 }
1062                                         }
1063                                         else
1064                                         {
1065                                                 WriteServ(user->fd,"472 %s %c :is unknown mode char to me",user->nick,*modechar);
1066                                         }
1067                                 break;
1068
1069                         }
1070                 }
1071         }
1072
1073         /* this ensures only the *valid* modes are sent out onto the network */
1074         int xt = strlen(outlist)-1;
1075         while ((outlist[xt] == '-') || (outlist[xt] == '+'))
1076         {
1077                 outlist[xt] = '\0';
1078                 xt = strlen(outlist)-1;
1079         }
1080         if (outlist[0])
1081         {
1082                 strlcpy(outstr,outlist,MAXBUF);
1083                 for (ptr = 0; ptr < pc; ptr++)
1084                 {
1085                         strlcat(outstr," ",MAXBUF);
1086                         strlcat(outstr,outpars[ptr],MAXBUF);
1087                 }
1088                 if (local)
1089                 {
1090                         log(DEBUG,"Local mode change");
1091                         WriteChannelLocal(chan, user, "MODE %s %s",chan->name,outstr);
1092                         FOREACH_MOD(I_OnMode,OnMode(user, chan, TYPE_CHANNEL, outstr));
1093                 }
1094                 else
1095                 {
1096                         if (servermode)
1097                         {
1098                                 if (!silent)
1099                                 {
1100                                         WriteChannelWithServ(Config->ServerName,chan,"MODE %s %s",chan->name,outstr);
1101                                 }
1102
1103                         }
1104                         else
1105                         {
1106                                 if (!silent)
1107                                 {
1108                                         WriteChannel(chan,user,"MODE %s %s",chan->name,outstr);
1109                                         FOREACH_MOD(I_OnMode,OnMode(user, chan, TYPE_CHANNEL, outstr));
1110                                 }
1111                         }
1112                 }
1113         }
1114 }
1115
1116 // based on sourcemodes, return true or false to determine if umode is a valid mode a user may set on themselves or others.
1117
1118 bool ModeParser::AllowedUmode(char umode, char* sourcemodes,bool adding,bool serveroverride)
1119 {
1120         log(DEBUG,"Allowed_umode: %c %s",umode,sourcemodes);
1121         // Servers can +o and -o arbitrarily
1122         if ((serveroverride == true) && (umode == 'o'))
1123         {
1124                 return true;
1125         }
1126         // RFC1459 specified modes
1127         if ((umode == 'w') || (umode == 's') || (umode == 'i'))
1128         {
1129                 log(DEBUG,"umode %c allowed by RFC1459 scemantics",umode);
1130                 return true;
1131         }
1132
1133         // user may not +o themselves or others, but an oper may de-oper other opers or themselves
1134         if ((strchr(sourcemodes,'o')) && (!adding))
1135         {
1136                 log(DEBUG,"umode %c allowed by RFC1459 scemantics",umode);
1137                 return true;
1138         }
1139         else if (umode == 'o')
1140         {
1141                 log(DEBUG,"umode %c allowed by RFC1459 scemantics",umode);
1142                 return false;
1143         }
1144
1145         // process any module-defined modes that need oper
1146         if ((ModeDefinedOper(umode,MT_CLIENT)) && (strchr(sourcemodes,'o')))
1147         {
1148                 log(DEBUG,"umode %c allowed by module handler (oper only mode)",umode);
1149                 return true;
1150         }
1151         else
1152         if (ModeDefined(umode,MT_CLIENT))
1153         {
1154                 // process any module-defined modes that don't need oper
1155                 log(DEBUG,"umode %c allowed by module handler (non-oper mode)",umode);
1156                 if ((ModeDefinedOper(umode,MT_CLIENT)) && (!strchr(sourcemodes,'o')))
1157                 {
1158                         // no, this mode needs oper, and this user 'aint got what it takes!
1159                         return false;
1160                 }
1161                 return true;
1162         }
1163
1164         // anything else - return false.
1165         log(DEBUG,"umode %c not known by any ruleset",umode);
1166         return false;
1167 }
1168
1169 bool ModeParser::ProcessModuleUmode(char umode, userrec* source, void* dest, bool adding)
1170 {
1171         userrec* s2;
1172         bool faked = false;
1173         if (!source)
1174         {
1175                 s2 = new userrec;
1176                 strlcpy(s2->nick,Config->ServerName,NICKMAX);
1177                 strlcpy(s2->modes,"o",52);
1178                 s2->fd = -1;
1179                 source = s2;
1180                 faked = true;
1181         }
1182         string_list p;
1183         p.clear();
1184         if (ModeDefined(umode,MT_CLIENT))
1185         {
1186                 for (int i = 0; i <= MODCOUNT; i++)
1187                 {
1188                         if (modules[i]->OnExtendedMode(source,(void*)dest,umode,MT_CLIENT,adding,p))
1189                         {
1190                                 log(DEBUG,"Module %s claims umode %c",Config->module_names[i].c_str(),umode);
1191                                 return true;
1192                         }
1193                 }
1194                 log(DEBUG,"No module claims umode %c",umode);
1195                 if (faked)
1196                 {
1197                         delete s2;
1198                         source = NULL;
1199                 }
1200                 return false;
1201         }
1202         else
1203         {
1204                 if (faked)
1205                 {
1206                         delete s2;
1207                         source = NULL;
1208                 }
1209                 return false;
1210         }
1211 }
1212
1213 void cmd_mode::Handle (char **parameters, int pcnt, userrec *user)
1214 {
1215         chanrec* Ptr;
1216         userrec* dest;
1217         int can_change;
1218         int direction = 1;
1219         char outpars[MAXBUF];
1220
1221         dest = Find(parameters[0]);
1222
1223         if (!user)
1224         {
1225                 return;
1226         }
1227
1228         if ((dest) && (pcnt == 1))
1229         {
1230                 WriteServ(user->fd,"221 %s :+%s",dest->nick,dest->modes);
1231                 return;
1232         }
1233
1234         if ((dest) && (pcnt > 1))
1235         {
1236                 std::string tidied = ServerInstance->ModeGrok->CompressModes(parameters[1],false);
1237                 parameters[1] = (char*)tidied.c_str();
1238
1239                 char dmodes[MAXBUF];
1240                 strlcpy(dmodes,dest->modes,52);
1241                 log(DEBUG,"pulled up dest user modes: %s",dmodes);
1242
1243                 can_change = 0;
1244                 if (user != dest)
1245                 {
1246                         if ((strchr(user->modes,'o')) || (is_uline(user->server)))
1247                         {
1248                                 can_change = 1;
1249                         }
1250                 }
1251                 else
1252                 {
1253                         can_change = 1;
1254                 }
1255                 if (!can_change)
1256                 {
1257                         WriteServ(user->fd,"482 %s :Can't change mode for other users",user->nick);
1258                         return;
1259                 }
1260
1261                 outpars[0] = '+';
1262                 outpars[1] = 0;
1263                 direction = 1;
1264
1265                 if ((parameters[1][0] != '+') && (parameters[1][0] != '-'))
1266                         return;
1267
1268                 for (unsigned int i = 0; i < strlen(parameters[1]); i++)
1269                 {
1270                         if (parameters[1][i] == ' ')
1271                                 continue;
1272                         if (parameters[1][i] == '+')
1273                         {
1274                                 if (direction != 1)
1275                                 {
1276                                         int t = strlen(outpars)-1;
1277                                         if ((outpars[t] == '+') || (outpars[t] == '-'))
1278                                         {
1279                                                 outpars[t] = '+';
1280                                         }
1281                                         else
1282                                         {
1283                                                 strcat(outpars,"+");
1284                                         }
1285                                 }
1286                                 direction = 1;
1287                         }
1288                         else
1289                         if (parameters[1][i] == '-')
1290                         {
1291                                 if (direction != 0)
1292                                 {
1293                                         int t = strlen(outpars)-1;
1294                                         if ((outpars[t] == '+') || (outpars[t] == '-'))
1295                                         {
1296                                                 outpars[t] = '-';
1297                                         }
1298                                         else
1299                                         {
1300                                                 strcat(outpars,"-");
1301                                         }
1302                                 }
1303                                 direction = 0;
1304                         }
1305                         else
1306                         {
1307                                 can_change = 0;
1308                                 if (strchr(user->modes,'o'))
1309                                 {
1310                                         can_change = 1;
1311                                 }
1312                                 else
1313                                 {
1314                                         if ((parameters[1][i] == 'i') || (parameters[1][i] == 'w') || (parameters[1][i] == 's') || (ServerInstance->ModeGrok->AllowedUmode(parameters[1][i],user->modes,direction,false)))
1315                                         {
1316                                                 can_change = 1;
1317                                         }
1318                                 }
1319                                 if (can_change)
1320                                 {
1321                                         if (direction == 1)
1322                                         {
1323                                                 if ((!strchr(dmodes,parameters[1][i])) && (ServerInstance->ModeGrok->AllowedUmode(parameters[1][i],user->modes,true,false)))
1324                                                 {
1325                                                         char umode = parameters[1][i];
1326                                                         if ((ServerInstance->ModeGrok->ProcessModuleUmode(umode, user, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
1327                                                         {
1328                                                                 int q = strlen(dmodes);
1329                                                                 int r = strlen(outpars);
1330                                                                 dmodes[q+1]='\0';
1331                                                                 dmodes[q] = parameters[1][i];
1332                                                                 outpars[r+1]='\0';
1333                                                                 outpars[r] = parameters[1][i];
1334                                                                 if (parameters[1][i] == 'o')
1335                                                                 {
1336                                                                         FOREACH_MOD(I_OnGlobalOper,OnGlobalOper(dest));
1337                                                                 }
1338                                                         }
1339                                                 }
1340                                         }
1341                                         else
1342                                         {
1343                                                 if ((ServerInstance->ModeGrok->AllowedUmode(parameters[1][i],user->modes,false,false)) && (strchr(dmodes,parameters[1][i])))
1344                                                 {
1345                                                         char umode = parameters[1][i];
1346                                                         if ((ServerInstance->ModeGrok->ProcessModuleUmode(umode, user, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
1347                                                         {
1348                                                                 unsigned int q = 0;
1349                                                                 char temp[MAXBUF];
1350                                                                 char moo[MAXBUF];
1351
1352                                                                 unsigned int r = strlen(outpars);
1353                                                                 outpars[r+1]='\0';
1354                                                                 outpars[r] = parameters[1][i];
1355
1356                                                                 *temp = 0;
1357                                                                 for (q = 0; q < strlen(dmodes); q++)
1358                                                                 {
1359                                                                         if (dmodes[q] != parameters[1][i])
1360                                                                         {
1361                                                                                 moo[0] = dmodes[q];
1362                                                                                 moo[1] = '\0';
1363                                                                                 strlcat(temp,moo,MAXBUF);
1364                                                                         }
1365                                                                 }
1366                                                                 strlcpy(dmodes,temp,52);
1367
1368                                                                 if (umode == 'o')
1369                                                                 {
1370                                                                         *dest->oper = 0;
1371                                                                         DeleteOper(dest);
1372                                                                 }
1373                                                         }
1374                                                 }
1375                                         }
1376                                 }
1377                         }
1378                 }
1379                 if (outpars[0])
1380                 {
1381                         char b[MAXBUF];
1382                         strlcpy(b,"",MAXBUF);
1383                         unsigned int z = 0;
1384                         unsigned int i = 0;
1385                         while (i < strlen (outpars))
1386                         {
1387                                 b[z++] = outpars[i++];
1388                                 b[z] = '\0';
1389                                 if (i<strlen(outpars)-1)
1390                                 {
1391                                         if (((outpars[i] == '-') || (outpars[i] == '+')) && ((outpars[i+1] == '-') || (outpars[i+1] == '+')))
1392                                         {
1393                                                 // someones playing silly buggers and trying
1394                                                 // to put a +- or -+ into the line...
1395                                                 i++;
1396                                         }
1397                                 }
1398                                 if (i == strlen(outpars)-1)
1399                                 {
1400                                         if ((outpars[i] == '-') || (outpars[i] == '+'))
1401                                         {
1402                                                 i++;
1403                                         }
1404                                 }
1405                         }
1406
1407                         z = strlen(b)-1;
1408                         if ((b[z] == '-') || (b[z] == '+'))
1409                                 b[z] = '\0';
1410
1411                         if ((!b[0]) || (!strcmp(b,"+")) || (!strcmp(b,"-")))
1412                                 return;
1413
1414                         if (strcmp(b,""))
1415                         {
1416                                 WriteTo(user, dest, "MODE %s :%s", dest->nick, b);
1417                                 FOREACH_MOD(I_OnMode,OnMode(user, dest, TYPE_USER, b));
1418                         }
1419
1420                         if (strlen(dmodes)>MAXMODES)
1421                         {
1422                                 dmodes[MAXMODES-1] = '\0';
1423                         }
1424                         log(DEBUG,"Stripped mode line");
1425                         log(DEBUG,"Line dest is now %s",dmodes);
1426                         strlcpy(dest->modes,dmodes,52);
1427
1428                 }
1429
1430                 return;
1431         }
1432
1433         Ptr = FindChan(parameters[0]);
1434         if (Ptr)
1435         {
1436                 if (pcnt == 1)
1437                 {
1438                         /* just /modes #channel */
1439                         WriteServ(user->fd,"324 %s %s +%s",user->nick, Ptr->name, chanmodes(Ptr));
1440                         WriteServ(user->fd,"329 %s %s %d", user->nick, Ptr->name, Ptr->created);
1441                         return;
1442                 }
1443                 else
1444                 if (pcnt == 2)
1445                 {
1446                         char* mode = parameters[1];
1447                         if (*mode == '+')
1448                                 mode++;
1449                         int MOD_RESULT = 0;
1450                         FOREACH_RESULT(I_OnRawMode,OnRawMode(user, Ptr, *mode, "", false, 0));
1451                         if (!MOD_RESULT)
1452                         {
1453                                 if (*mode == 'b')
1454                                 {
1455
1456                                         for (BanList::iterator i = Ptr->bans.begin(); i != Ptr->bans.end(); i++)
1457                                         {
1458                                                 WriteServ(user->fd,"367 %s %s %s %s %d",user->nick, Ptr->name, i->data, i->set_by, i->set_time);
1459                                         }
1460                                         WriteServ(user->fd,"368 %s %s :End of channel ban list",user->nick, Ptr->name);
1461                                         return;
1462                                 }
1463                                 if ((ModeDefined(*mode,MT_CHANNEL)) && (ModeIsListMode(*mode,MT_CHANNEL)))
1464                                 {
1465                                         // list of items for an extmode
1466                                         log(DEBUG,"Calling OnSendList for all modules, list output for mode %c",*mode);
1467                                         FOREACH_MOD(I_OnSendList,OnSendList(user,Ptr,*mode));
1468                                         return;
1469                                 }
1470                         }
1471                 }
1472
1473                 if (((Ptr) && (!has_channel(user,Ptr))) && (!is_uline(user->server)))
1474                 {
1475                         WriteServ(user->fd,"442 %s %s :You're not on that channel!",user->nick, Ptr->name);
1476                         return;
1477                 }
1478
1479                 if (Ptr)
1480                 {
1481                         int MOD_RESULT = 0;
1482                         FOREACH_RESULT(I_OnAccessCheck,OnAccessCheck(user,NULL,Ptr,AC_GENERAL_MODE));
1483
1484                         if (MOD_RESULT == ACR_DENY)
1485                                 return;
1486                         if (MOD_RESULT == ACR_DEFAULT)
1487                         {
1488                                 if (cstatus(user,Ptr) < STATUS_HOP)
1489                                 {
1490                                         WriteServ(user->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel",user->nick, Ptr->name);
1491                                         return;
1492                                 }
1493                         }
1494
1495                         ServerInstance->ModeGrok->ProcessModes(parameters,user,Ptr,cstatus(user,Ptr),pcnt,false,false,false);
1496                 }
1497         }
1498         else
1499         {
1500                 WriteServ(user->fd,"401 %s %s :No such nick/channel",user->nick, parameters[0]);
1501         }
1502 }
1503
1504
1505
1506
1507 void ModeParser::ServerMode(char **parameters, int pcnt, userrec *user)
1508 {
1509         chanrec* Ptr;
1510         userrec* dest;
1511         int can_change;
1512         int direction = 1;
1513         char outpars[MAXBUF];
1514
1515         dest = Find(parameters[0]);
1516
1517         // fix: ChroNiCk found this - we cant use this as debug if its null!
1518         if (dest)
1519         {
1520                 log(DEBUG,"server_mode on %s",dest->nick);
1521         }
1522
1523         if ((dest) && (pcnt > 1))
1524         {
1525                 std::string tidied = ServerInstance->ModeGrok->CompressModes(parameters[1],false);
1526                 parameters[1] = (char*)tidied.c_str();
1527
1528                 char dmodes[MAXBUF];
1529                 strlcpy(dmodes,dest->modes,52);
1530
1531                 outpars[0] = '+';
1532                 outpars[1] = 0;
1533                 direction = 1;
1534
1535                 if ((parameters[1][0] != '+') && (parameters[1][0] != '-'))
1536                         return;
1537
1538                 for (unsigned int i = 0; i < strlen(parameters[1]); i++)
1539                 {
1540                         if (parameters[1][i] == ' ')
1541                                 continue;
1542                         if (parameters[1][i] == '+')
1543                         {
1544                                 if (direction != 1)
1545                                 {
1546                                         int t = strlen(outpars)-1;
1547                                         if ((outpars[t] == '+') || (outpars[t] == '-'))
1548                                         {
1549                                                 outpars[t] = '+';
1550                                         }
1551                                         else
1552                                         {
1553                                                 strcat(outpars,"+");
1554                                         }
1555                                 }
1556                                 direction = 1;
1557                         }
1558                         else
1559                         if (parameters[1][i] == '-')
1560                         {
1561                                 if (direction != 0)
1562                                 {
1563                                         int t = strlen(outpars)-1;
1564                                         if ((outpars[t] == '+') || (outpars[t] == '-'))
1565                                         {
1566                                                 outpars[t] = '-';
1567                                         }
1568                                         else
1569                                         {
1570                                                 strcat(outpars,"-");
1571                                         }
1572                                 }
1573                                 direction = 0;
1574                         }
1575                         else
1576                         {
1577                                 log(DEBUG,"begin mode processing entry");
1578                                 can_change = 1;
1579                                 if (can_change)
1580                                 {
1581                                         if (direction == 1)
1582                                         {
1583                                                 log(DEBUG,"umode %c being added",parameters[1][i]);
1584                                                 if ((!strchr(dmodes,parameters[1][i])) && (ServerInstance->ModeGrok->AllowedUmode(parameters[1][i],user->modes,true,true)))
1585                                                 {
1586                                                         char umode = parameters[1][i];
1587                                                         log(DEBUG,"umode %c is an allowed umode",umode);
1588                                                         if ((ServerInstance->ModeGrok->ProcessModuleUmode(umode, user, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
1589                                                         {
1590                                                                 int v1 = strlen(dmodes);
1591                                                                 int v2 = strlen(outpars);
1592                                                                 dmodes[v1+1]='\0';
1593                                                                 dmodes[v1] = parameters[1][i];
1594                                                                 outpars[v2+1]='\0';
1595                                                                 outpars[v2] = parameters[1][i];
1596                                                         }
1597                                                 }
1598                                         }
1599                                         else
1600                                         {
1601                                                 // can only remove a mode they already have
1602                                                 log(DEBUG,"umode %c being removed",parameters[1][i]);
1603                                                 if ((ServerInstance->ModeGrok->AllowedUmode(parameters[1][i],user->modes,false,true)) && (strchr(dmodes,parameters[1][i])))
1604                                                 {
1605                                                         char umode = parameters[1][i];
1606                                                         log(DEBUG,"umode %c is an allowed umode",umode);
1607                                                         if ((ServerInstance->ModeGrok->ProcessModuleUmode(umode, user, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
1608                                                         {
1609                                                                 unsigned int q = 0;
1610                                                                 char temp[MAXBUF];
1611                                                                 char moo[MAXBUF];
1612
1613                                                                 unsigned int v1 = strlen(outpars);
1614                                                                 outpars[v1+1]='\0';
1615                                                                 outpars[v1] = parameters[1][i];
1616                                                                 *temp = 0;
1617                                                                 for (q = 0; q < strlen(dmodes); q++)
1618                                                                 {
1619                                                                         if (dmodes[q] != parameters[1][i])
1620                                                                         {
1621                                                                                 moo[0] = dmodes[q];
1622                                                                                 moo[1] = '\0';
1623                                                                                 strlcat(temp,moo,MAXBUF);
1624                                                                         }
1625                                                                 }
1626                                                                 strlcpy(dmodes,temp,52);
1627                                                         }
1628                                                 }
1629                                         }
1630                                 }
1631                         }
1632                 }
1633                 if (outpars[0])
1634                 {
1635                         char b[MAXBUF];
1636                         strlcpy(b,"",MAXBUF);
1637                         unsigned int z = 0;
1638                         unsigned int i = 0;
1639                         while (i < strlen (outpars))
1640                         {
1641                                 b[z++] = outpars[i++];
1642                                 b[z] = '\0';
1643                                 if (i<strlen(outpars)-1)
1644                                 {
1645                                         if (((outpars[i] == '-') || (outpars[i] == '+')) && ((outpars[i+1] == '-') || (outpars[i+1] == '+')))
1646                                         {
1647                                                 // someones playing silly buggers and trying
1648                                                 // to put a +- or -+ into the line...
1649                                                 i++;
1650                                         }
1651                                 }
1652                                 if (i == strlen(outpars)-1)
1653                                 {
1654                                         if ((outpars[i] == '-') || (outpars[i] == '+'))
1655                                         {
1656                                                 i++;
1657                                         }
1658                                 }
1659                         }
1660
1661                         z = strlen(b)-1;
1662                         if ((b[z] == '-') || (b[z] == '+'))
1663                                 b[z] = '\0';
1664
1665                         if ((!b[0]) || (!strcmp(b,"+")) || (!strcmp(b,"-")))
1666                                 return;
1667
1668                         if (strcmp(b,""))
1669                         {
1670                                 WriteTo(user, dest, "MODE %s :%s", dest->nick, b);
1671                                 FOREACH_MOD(I_OnMode,OnMode(user, dest, TYPE_USER, b));
1672                         }
1673
1674                         if (strlen(dmodes)>MAXMODES)
1675                         {
1676                                 dmodes[MAXMODES-1] = '\0';
1677                         }
1678                         log(DEBUG,"Stripped mode line");
1679                         log(DEBUG,"Line dest is now %s",dmodes);
1680                         strlcpy(dest->modes,dmodes,MAXMODES);
1681
1682                 }
1683
1684                 return;
1685         }
1686
1687         Ptr = FindChan(parameters[0]);
1688         if (Ptr)
1689         {
1690                 ServerInstance->ModeGrok->ProcessModes(parameters,user,Ptr,STATUS_OP,pcnt,true,false,false);
1691         }
1692         else
1693         {
1694                 WriteServ(user->fd,"401 %s %s :No such nick/channel",user->nick, parameters[0]);
1695         }
1696 }