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         strlcpy(b.set_by,user->nick,NICKMAX);
 455         chan->bans.push_back(b);
 456         return dest;
 457 }
 458
 459 char* ModeParser::TakeBan(userrec *user,char *dest,chanrec *chan,int status)
 460 {
 461         if ((!user) || (!dest) || (!chan) || (!*dest)) {
 462                 log(DEFAULT,"*** BUG *** TakeBan was given an invalid parameter");
 463                 return 0;
 464         }
 465
 466         log(DEBUG,"del_ban: %s %s",chan->name,user->nick);
 467         for (BanList::iterator i = chan->bans.begin(); i != chan->bans.end(); i++)
 468         {
 469                 if (!strcasecmp(i->data,dest))
 470                 {
 471                         int MOD_RESULT = 0;
 472                         FOREACH_RESULT(I_OnDelBan,OnDelBan(user,chan,dest));
 473                         if (MOD_RESULT)
 474                                 return NULL;
 475                         chan->bans.erase(i);
 476                         return dest;
 477                 }
 478         }
 479         return NULL;
 480 }
 481
 482 // tidies up redundant modes, e.g. +nt-nt+i becomes +-+i,
 483 // a section further down the chain tidies up the +-+- crap.
 484 std::string ModeParser::CompressModes(std::string modes,bool channelmodes)
 485 {
 486         int counts[127];
 487         bool active[127];
 488         memset(counts,0,sizeof(counts));
 489         memset(active,0,sizeof(active));
 490         for (unsigned int i = 0; i < modes.length(); i++)
 491         {
 492                 if ((modes[i] == '+') || (modes[i] == '-'))
 493                         continue;
 494                 if (channelmodes)
 495                 {
 496                         if ((strchr("itnmsp",modes[i])) || ((ModeDefined(modes[i],MT_CHANNEL)) && (ModeDefinedOn(modes[i],MT_CHANNEL)==0) && (ModeDefinedOff(modes[i],MT_CHANNEL)==0)))
 497                         {
 498                                 log(DEBUG,"Tidy mode %c",modes[i]);
 499                                 counts[(unsigned int)modes[i]]++;
 500                                 active[(unsigned int)modes[i]] = true;
 501                         }
 502                 }
 503                 else
 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         for (int j = 65; j < 127; j++)
 511         {
 512                 if ((counts[j] > 1) && (active[j] == true))
 513                 {
 514                         static char v[2];
 515                         v[0] = (unsigned char)j;
 516                         v[1] = '\0';
 517                         std::string mode_str = v;
 518                         std::string::size_type pos = modes.find(mode_str);
 519                         if (pos != std::string::npos)
 520                         {
 521                                 log(DEBUG,"all occurances of mode %c to be deleted...",(unsigned char)j);
 522                                 while (modes.find(mode_str) != std::string::npos)
 523                                         modes.erase(modes.find(mode_str),1);
 524                                 log(DEBUG,"New mode line: %s",modes.c_str());
 525                         }
 526                 }
 527         }
 528         return modes;
 529 }
 530
 531 void ModeParser::ProcessModes(char **parameters,userrec* user,chanrec *chan,int status, int pcnt, bool servermode, bool silent, bool local)
 532 {
 533         if (!parameters) {
 534                 log(DEFAULT,"*** BUG *** process_modes was given an invalid parameter");
 535                 return;
 536         }
 537
 538         char modelist[MAXBUF];
 539         char outlist[MAXBUF];
 540         char outstr[MAXBUF];
 541         char outpars[32][MAXBUF];
 542         int param = 2;
 543         int pc = 0;
 544         int ptr = 0;
 545         int mdir = 1;
 546         char* r = NULL;
 547         bool k_set = false, l_set = false, previously_set_l = false, previously_unset_l = false, previously_set_k = false, previously_unset_k = false;
 548
 549         if (pcnt < 2)
 550         {
 551                 return;
 552         }
 553
 554         int MOD_RESULT = 0;
 555
 556         if (IS_LOCAL(user))
 557         {
 558                 FOREACH_RESULT(I_OnAccessCheck,OnAccessCheck(user,NULL,chan,AC_GENERAL_MODE));
 559                 if (MOD_RESULT == ACR_DENY)
 560                         return;
 561         }
 562
 563         log(DEBUG,"process_modes: start: parameters=%d",pcnt);
 564
 565         strlcpy(modelist,parameters[1],MAXBUF); /* mode list, e.g. +oo-o *
 566                                                  * parameters[2] onwards are parameters for
 567                                                  * modes that require them :) */
 568         *outlist = '+';
 569         *(outlist+1) = 0;
 570         mdir = 1;
 571
 572         log(DEBUG,"process_modes: modelist: %s",modelist);
 573
 574         std::string tidied = this->CompressModes(modelist,true);
 575         strlcpy(modelist,tidied.c_str(),MAXBUF);
 576
 577         int len = tidied.length();
 578         while (modelist[len-1] == ' ')
 579                 modelist[--len] = '\0';
 580
 581         for (char* modechar = modelist; *modechar; ptr++, modechar++)
 582         {
 583                 r = NULL;
 584
 585                 {
 586                         switch (*modechar)
 587                         {
 588                                 case '-':
 589                                         if (mdir != 0)
 590                                         {
 591                                                 int t = strlen(outlist)-1;
 592                                                 if ((outlist[t] == '+') || (outlist[t] == '-'))
 593                                                 {
 594                                                         outlist[t] = '-';
 595                                                 }
 596                                                 else
 597                                                 {
 598                                                         strcat(outlist,"-");
 599                                                 }
 600                                         }
 601                                         mdir = 0;
 602
 603                                 break;
 604
 605                                 case '+':
 606                                         if (mdir != 1)
 607                                         {
 608                                                 int t = strlen(outlist)-1;
 609                                                 if ((outlist[t] == '+') || (outlist[t] == '-'))
 610                                                 {
 611                                                         outlist[t] = '+';
 612                                                 }
 613                                                 else
 614                                                 {
 615                                                         strcat(outlist,"+");
 616                                                 }
 617                                         }
 618                                         mdir = 1;
 619                                 break;
 620
 621                                 case 'o':
 622                                         log(DEBUG,"Ops");
 623                                         if ((param >= pcnt)) break;
 624                                         log(DEBUG,"Enough parameters left");
 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                                                 strlcat(outlist,"o",MAXBUF);
 650                                                 strlcpy(outpars[pc++],r,MAXBUF);
 651                                         }
 652                                 break;
 653
 654                                 case 'h':
 655                                         if (((param >= pcnt)) || (!Config->AllowHalfop)) break;
 656                                         if (mdir == 1)
 657                                         {
 658                                                 MOD_RESULT = 0;
 659                                                 FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'h', parameters[param], true, 1));
 660                                                 if (!MOD_RESULT)
 661                                                 {
 662                                                         r = GiveHops(user,parameters[param++],chan,status);
 663                                                 }
 664                                                 else param++;
 665                                         }
 666                                         else
 667                                         {
 668                                                 MOD_RESULT = 0;
 669                                                 FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'h', parameters[param], false, 1));
 670                                                 if (!MOD_RESULT)
 671                                                 {
 672                                                         r = TakeHops(user,parameters[param++],chan,status);
 673                                                 }
 674                                                 else param++;
 675                                         }
 676                                         if (r)
 677                                         {
 678                                                 strlcat(outlist,"h",MAXBUF);
 679                                                 strlcpy(outpars[pc++],r,MAXBUF);
 680                                         }
 681                                 break;
 682
 683
 684                                 case 'v':
 685                                         if ((param >= pcnt)) break;
 686                                         if (mdir == 1)
 687                                         {
 688                                                 MOD_RESULT = 0;
 689                                                 FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'v', parameters[param], true, 1));
 690                                                 if (!MOD_RESULT)
 691                                                 {
 692                                                         r = GiveVoice(user,parameters[param++],chan,status);
 693                                                 }
 694                                                 else param++;
 695                                         }
 696                                         else
 697                                         {
 698                                                 MOD_RESULT = 0;
 699                                                 FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'v', parameters[param], false, 1));
 700                                                 if (!MOD_RESULT)
 701                                                 {
 702                                                         r = TakeVoice(user,parameters[param++],chan,status);
 703                                                 }
 704                                                 else param++;
 705                                         }
 706                                         if (r)
 707                                         {
 708                                                 strlcat(outlist,"v",MAXBUF);
 709                                                 strlcpy(outpars[pc++],r,MAXBUF);
 710                                         }
 711                                 break;
 712
 713                                 case 'b':
 714                                         if ((param >= pcnt)) break;
 715                                         if (mdir == 1)
 716                                         {
 717                                                 MOD_RESULT = 0;
 718                                                 FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'b', parameters[param], true, 1));
 719                                                 if (!MOD_RESULT)
 720                                                 {
 721                                                         r = AddBan(user,parameters[param++],chan,status);
 722                                                 }
 723                                                 else param++;
 724                                         }
 725                                         else
 726                                         {
 727                                                 MOD_RESULT = 0;
 728                                                 FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'b', parameters[param], false, 1));
 729                                                 if (!MOD_RESULT)
 730                                                 {
 731                                                         r = TakeBan(user,parameters[param++],chan,status);
 732                                                 }
 733                                                 else param++;
 734                                         }
 735                                         if (r)
 736                                         {
 737                                                 strlcat(outlist,"b",MAXBUF);
 738                                                 strlcpy(outpars[pc++],parameters[param-1],MAXBUF);
 739                                         }
 740                                 break;
 741
 742
 743                                 case 'k':
 744                                         if ((param >= pcnt))
 745                                                 break;
 746
 747                                         if (mdir == 1)
 748                                         {
 749                                                 if (k_set)
 750                                                         break;
 751
 752                                                 if (previously_unset_k)
 753                                                         break;
 754                                                 previously_set_k = true;
 755
 756                                                 if (!*chan->key)
 757                                                 {
 758                                                         MOD_RESULT = 0;
 759                                                         FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'k', parameters[param], true, 1));
 760                                                         if (!MOD_RESULT)
 761                                                         {
 762                                                                 strcat(outlist,"k");
 763                                                                 char key[MAXBUF];
 764                                                                 strlcpy(key,parameters[param++],32);
 765                                                                 strlcpy(outpars[pc++],key,MAXBUF);
 766                                                                 strlcpy(chan->key,key,MAXBUF);
 767                                                                 k_set = true;
 768                                                         }
 769                                                         else param++;
 770                                                 }
 771                                         }
 772                                         else
 773                                         {
 774                                                 /* checks on -k are case sensitive and only accurate to the
 775                                                    first 32 characters */
 776                                                 if (previously_set_k)
 777                                                         break;
 778                                                 previously_unset_k = true;
 779
 780                                                 char key[MAXBUF];
 781                                                 MOD_RESULT = 0;
 782                                                 FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'k', parameters[param], false, 1));
 783                                                 if (!MOD_RESULT)
 784                                                 {
 785                                                         strlcpy(key,parameters[param++],32);
 786                                                         /* only allow -k if correct key given */
 787                                                         if (!strcmp(chan->key,key))
 788                                                         {
 789                                                                 strlcat(outlist,"k",MAXBUF);
 790                                                                 strlcpy(chan->key,"",MAXBUF);
 791                                                                 strlcpy(outpars[pc++],key,MAXBUF);
 792                                                         }
 793                                                 }
 794                                                 else param++;
 795                                         }
 796                                 break;
 797
 798                                 case 'l':
 799                                         if (mdir == 0)
 800                                         {
 801                                                 if (previously_set_l)
 802                                                         break;
 803                                                 previously_unset_l = true;
 804                                                 MOD_RESULT = 0;
 805                                                 FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'l', "", false, 0));
 806                                                 if (!MOD_RESULT)
 807                                                 {
 808                                                         if (chan->limit)
 809                                                         {
 810                                                                 strcat(outlist,"l");
 811                                                                 chan->limit = 0;
 812                                                         }
 813                                                 }
 814                                         }
 815
 816                                         if ((param >= pcnt)) break;
 817                                         if (mdir == 1)
 818                                         {
 819                                                 if (l_set)
 820                                                         break;
 821                                                 if (previously_unset_l)
 822                                                         break;
 823                                                 previously_set_l = true;
 824                                                 bool invalid = false;
 825                                                 for (char* f = parameters[param]; *f; f++)
 826                                                 {
 827                                                         if ((*f < '0') || (*f > '9'))
 828                                                         {
 829                                                                 invalid = true;
 830                                                         }
 831                                                 }
 832                                                 /* If the limit is < 1, or the new limit is the current limit, dont allow */
 833                                                 if ((atoi(parameters[param]) < 1) || ((chan->limit > 0) && (atoi(parameters[param]) == chan->limit)))
 834                                                 {
 835                                                         invalid = true;
 836                                                 }
 837
 838                                                 if (invalid)
 839                                                         break;
 840
 841                                                 MOD_RESULT = 0;
 842                                                 FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'l', parameters[param], true, 1));
 843                                                 if (!MOD_RESULT)
 844                                                 {
 845
 846                                                         chan->limit = atoi(parameters[param]);
 847
 848                                                         // reported by mech: large values cause underflow
 849                                                         if (chan->limit < 0)
 850                                                                 chan->limit = 0x7FFF;
 851                                                 }
 852
 853                                                 if (chan->limit)
 854                                                 {
 855                                                         strlcat(outlist,"l",MAXBUF);
 856                                                         strlcpy(outpars[pc++],parameters[param++],MAXBUF);
 857                                                         l_set = true;
 858                                                 }
 859                                         }
 860                                 break;
 861
 862                                 case 'i':
 863                                         MOD_RESULT = 0;
 864                                         FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'i', "", mdir, 0));
 865                                         if (!MOD_RESULT)
 866                                         {
 867                                                 if (mdir)
 868                                                 {
 869                                                         if (!(chan->binarymodes & CM_INVITEONLY)) strlcat(outlist,"i",MAXBUF);
 870                                                         chan->binarymodes |= CM_INVITEONLY;
 871                                                 }
 872                                                 else
 873                                                 {
 874                                                         if (chan->binarymodes & CM_INVITEONLY) strlcat(outlist,"i",MAXBUF);
 875                                                         chan->binarymodes &= ~CM_INVITEONLY;
 876                                                 }
 877                                         }
 878                                 break;
 879
 880                                 case 't':
 881                                         MOD_RESULT = 0;
 882                                         FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 't', "", mdir, 0));
 883                                         if (!MOD_RESULT)
 884                                         {
 885                                                 if (mdir)
 886                                                 {
 887                                                         if (!(chan->binarymodes & CM_TOPICLOCK)) strlcat(outlist,"t",MAXBUF);
 888                                                         chan->binarymodes |= CM_TOPICLOCK;
 889                                                 }
 890                                                 else
 891                                                 {
 892                                                         if (chan->binarymodes & CM_TOPICLOCK) strlcat(outlist,"t",MAXBUF);
 893                                                         chan->binarymodes &= ~CM_TOPICLOCK;
 894                                                 }
 895                                         }
 896                                 break;
 897
 898                                 case 'n':
 899                                         MOD_RESULT = 0;
 900                                         FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'n', "", mdir, 0));
 901                                         if (!MOD_RESULT)
 902                                         {
 903                                                 if (mdir)
 904                                                 {
 905                                                         if (!(chan->binarymodes & CM_NOEXTERNAL)) strlcat(outlist,"n",MAXBUF);
 906                                                         chan->binarymodes |= CM_NOEXTERNAL;
 907                                                 }
 908                                                 else
 909                                                 {
 910                                                         if (chan->binarymodes & CM_NOEXTERNAL) strlcat(outlist,"n",MAXBUF);
 911                                                         chan->binarymodes &= ~CM_NOEXTERNAL;
 912                                                 }
 913                                         }
 914                                 break;
 915
 916                                 case 'm':
 917                                         MOD_RESULT = 0;
 918                                         FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'm', "", mdir, 0));
 919                                         if (!MOD_RESULT)
 920                                         {
 921                                                 if (mdir)
 922                                                 {
 923                                                         if (!(chan->binarymodes & CM_MODERATED)) strlcat(outlist,"m",MAXBUF);
 924                                                         chan->binarymodes |= CM_MODERATED;
 925                                                 }
 926                                                 else
 927                                                 {
 928                                                         if (chan->binarymodes & CM_MODERATED) strlcat(outlist,"m",MAXBUF);
 929                                                         chan->binarymodes &= ~CM_MODERATED;
 930                                                 }
 931                                         }
 932                                 break;
 933
 934                                 case 's':
 935                                         MOD_RESULT = 0;
 936                                         FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 's', "", mdir, 0));
 937                                         if (!MOD_RESULT)
 938                                         {
 939                                                 if (mdir)
 940                                                 {
 941                                                         if (!(chan->binarymodes & CM_SECRET)) strlcat(outlist,"s",MAXBUF);
 942                                                         chan->binarymodes |= CM_SECRET;
 943                                                         if (chan->binarymodes & CM_PRIVATE)
 944                                                         {
 945                                                                 chan->binarymodes &= ~CM_PRIVATE;
 946                                                                 if (mdir)
 947                                                                 {
 948                                                                         strlcat(outlist,"-p+",MAXBUF);
 949                                                                 }
 950                                                         }
 951                                                 }
 952                                                 else
 953                                                 {
 954                                                         if (chan->binarymodes & CM_SECRET) strlcat(outlist,"s",MAXBUF);
 955                                                         chan->binarymodes &= ~CM_SECRET;
 956                                                 }
 957                                         }
 958                                 break;
 959
 960                                 case 'p':
 961                                         MOD_RESULT = 0;
 962                                         FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'p', "", mdir, 0));
 963                                         if (!MOD_RESULT)
 964                                         {
 965                                                 if (mdir)
 966                                                 {
 967                                                         if (!(chan->binarymodes & CM_PRIVATE)) strlcat(outlist,"p",MAXBUF);
 968                                                         chan->binarymodes |= CM_PRIVATE;
 969                                                         if (chan->binarymodes & CM_SECRET)
 970                                                         {
 971                                                                 chan->binarymodes &= ~CM_SECRET;
 972                                                                 if (mdir)
 973                                                                 {
 974                                                                         strlcat(outlist,"-s+",MAXBUF);
 975                                                                 }
 976                                                         }
 977                                                 }
 978                                                 else
 979                                                 {
 980                                                         if (chan->binarymodes & CM_PRIVATE) strlcat(outlist,"p",MAXBUF);
 981                                                         chan->binarymodes &= ~CM_PRIVATE;
 982                                                 }
 983                                         }
 984                                 break;
 985
 986                                 default:
 987                                         log(DEBUG,"Preprocessing custom mode %c: modelist: %s",*modechar,chan->custom_modes);
 988                                         string_list p;
 989                                         p.clear();
 990                                         if (((!strchr(chan->custom_modes,*modechar)) && (!mdir)) || ((strchr(chan->custom_modes,*modechar)) && (mdir)))
 991                                         {
 992                                                 if (!ModeIsListMode(*modechar,MT_CHANNEL))
 993                                                 {
 994                                                         log(DEBUG,"Mode %c isnt set on %s but trying to remove!",*modechar,chan->name);
 995                                                         break;
 996                                                 }
 997                                         }
 998                                         if (ModeDefined(*modechar,MT_CHANNEL))
 999                                         {
1000                                                 log(DEBUG,"A module has claimed this mode");
1001                                                 if (param<pcnt)
1002                                                 {
1003                                                         if ((ModeDefinedOn(*modechar,MT_CHANNEL)>0) && (mdir))
1004                                                         {
1005                                                                 p.push_back(parameters[param]);
1006                                                         }
1007                                                         if ((ModeDefinedOff(*modechar,MT_CHANNEL)>0) && (!mdir))
1008                                                         {
1009                                                                 p.push_back(parameters[param]);
1010                                                         }
1011                                                 }
1012                                                 bool handled = false;
1013                                                 if (param>=pcnt)
1014                                                 {
1015                                                         // we're supposed to have a parameter, but none was given... so dont handle the mode.
1016                                                         if (((ModeDefinedOn(*modechar,MT_CHANNEL)>0) && (mdir)) || ((ModeDefinedOff(*modechar,MT_CHANNEL)>0) && (!mdir)))
1017                                                         {
1018                                                                 log(DEBUG,"Not enough parameters for module-mode %c",*modechar);
1019                                                                 handled = true;
1020                                                                 param++;
1021                                                         }
1022                                                 }
1023
1024                                                 // BIG ASS IDIOTIC CODER WARNING!
1025                                                 // Using OnRawMode on another modules mode's behavour
1026                                                 // will confuse the crap out of admins! just because you CAN
1027                                                 // do it, doesnt mean you SHOULD!
1028                                                 MOD_RESULT = 0;
1029                                                 std::string para = "";
1030                                                 if (p.size())
1031                                                         para = p[0];
1032                                                 FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, *modechar, para, mdir, pcnt));
1033                                                 if (!MOD_RESULT)
1034                                                 {
1035                                                         for (int i = 0; i <= MODCOUNT; i++)
1036                                                         {
1037                                                                 if (!handled)
1038                                                                 {
1039                                                                         int t = modules[i]->OnExtendedMode(user,chan,*modechar,MT_CHANNEL,mdir,p);
1040                                                                         if (t != 0)
1041                                                                         {
1042                                                                                 log(DEBUG,"OnExtendedMode returned nonzero for a module");
1043                                                                                 char app[] = {*modechar, 0};
1044                                                                                 if (ModeIsListMode(*modechar,MT_CHANNEL))
1045                                                                                 {
1046                                                                                         if (t == -1)
1047                                                                                         {
1048                                                                                                 //pc++;
1049                                                                                                 param++;
1050                                                                                         }
1051                                                                                         else
1052                                                                                         {
1053                                                                                                 if (ptr>0)
1054                                                                                                 {
1055                                                                                                         strlcat(outlist, app,MAXBUF);
1056                                                                                                 }
1057                                                                                                 strlcpy(outpars[pc++],parameters[param++],MAXBUF);
1058                                                                                         }
1059                                                                                 }
1060                                                                                 else
1061                                                                                 {
1062                                                                                         if (ptr>0)
1063                                                                                         {
1064                                                                                                 if ((modelist[ptr-1] == '+') || (modelist[ptr-1] == '-'))
1065                                                                                                 {
1066                                                                                                         strlcat(outlist, app,MAXBUF);
1067                                                                                                 }
1068                                                                                                 else if (!strchr(outlist,*modechar))
1069                                                                                                 {
1070                                                                                                         strlcat(outlist, app,MAXBUF);
1071                                                                                                 }
1072                                                                                         }
1073                                                                                         chan->SetCustomMode(*modechar,mdir);
1074                                                                                         // include parameters in output if mode has them
1075                                                                                         if ((ModeDefinedOn(*modechar,MT_CHANNEL)>0) && (mdir))
1076                                                                                         {
1077                                                                                                 chan->SetCustomModeParam(modelist[ptr],parameters[param],mdir);
1078                                                                                                 strlcpy(outpars[pc++],parameters[param++],MAXBUF);
1079                                                                                         }
1080                                                                                 }
1081                                                                                 // break, because only one module can handle the mode.
1082                                                                                 handled = true;
1083                                                                         }
1084                                                                 }
1085                                                         }
1086                                                 }
1087                                         }
1088                                         else
1089                                         {
1090                                                 WriteServ(user->fd,"472 %s %c :is unknown mode char to me",user->nick,*modechar);
1091                                         }
1092                                 break;
1093
1094                         }
1095                 }
1096         }
1097
1098         /* this ensures only the *valid* modes are sent out onto the network */
1099         int xt = strlen(outlist)-1;
1100         while ((outlist[xt] == '-') || (outlist[xt] == '+'))
1101         {
1102                 outlist[xt] = '\0';
1103                 xt = strlen(outlist)-1;
1104         }
1105         if (outlist[0])
1106         {
1107                 strlcpy(outstr,outlist,MAXBUF);
1108                 for (ptr = 0; ptr < pc; ptr++)
1109                 {
1110                         strlcat(outstr," ",MAXBUF);
1111                         strlcat(outstr,outpars[ptr],MAXBUF);
1112                 }
1113                 if (local)
1114                 {
1115                         log(DEBUG,"Local mode change");
1116                         WriteChannelLocal(chan, user, "MODE %s %s",chan->name,outstr);
1117                         FOREACH_MOD(I_OnMode,OnMode(user, chan, TYPE_CHANNEL, outstr));
1118                 }
1119                 else
1120                 {
1121                         if (servermode)
1122                         {
1123                                 if (!silent)
1124                                 {
1125                                         WriteChannelWithServ(Config->ServerName,chan,"MODE %s %s",chan->name,outstr);
1126                                 }
1127
1128                         }
1129                         else
1130                         {
1131                                 if (!silent)
1132                                 {
1133                                         WriteChannel(chan,user,"MODE %s %s",chan->name,outstr);
1134                                         FOREACH_MOD(I_OnMode,OnMode(user, chan, TYPE_CHANNEL, outstr));
1135                                 }
1136                         }
1137                 }
1138         }
1139 }
1140
1141 // based on sourcemodes, return true or false to determine if umode is a valid mode a user may set on themselves or others.
1142
1143 bool ModeParser::AllowedUmode(char umode, char* sourcemodes,bool adding,bool serveroverride)
1144 {
1145         log(DEBUG,"Allowed_umode: %c %s",umode,sourcemodes);
1146         // Servers can +o and -o arbitrarily
1147         if ((serveroverride == true) && (umode == 'o'))
1148         {
1149                 return true;
1150         }
1151         // RFC1459 specified modes
1152         if ((umode == 'w') || (umode == 's') || (umode == 'i'))
1153         {
1154                 log(DEBUG,"umode %c allowed by RFC1459 scemantics",umode);
1155                 return true;
1156         }
1157
1158         // user may not +o themselves or others, but an oper may de-oper other opers or themselves
1159         if ((strchr(sourcemodes,'o')) && (!adding))
1160         {
1161                 log(DEBUG,"umode %c allowed by RFC1459 scemantics",umode);
1162                 return true;
1163         }
1164         else if (umode == 'o')
1165         {
1166                 log(DEBUG,"umode %c allowed by RFC1459 scemantics",umode);
1167                 return false;
1168         }
1169
1170         // process any module-defined modes that need oper
1171         if ((ModeDefinedOper(umode,MT_CLIENT)) && (strchr(sourcemodes,'o')))
1172         {
1173                 log(DEBUG,"umode %c allowed by module handler (oper only mode)",umode);
1174                 return true;
1175         }
1176         else
1177         if (ModeDefined(umode,MT_CLIENT))
1178         {
1179                 // process any module-defined modes that don't need oper
1180                 log(DEBUG,"umode %c allowed by module handler (non-oper mode)",umode);
1181                 if ((ModeDefinedOper(umode,MT_CLIENT)) && (!strchr(sourcemodes,'o')))
1182                 {
1183                         // no, this mode needs oper, and this user 'aint got what it takes!
1184                         return false;
1185                 }
1186                 return true;
1187         }
1188
1189         // anything else - return false.
1190         log(DEBUG,"umode %c not known by any ruleset",umode);
1191         return false;
1192 }
1193
1194 bool ModeParser::ProcessModuleUmode(char umode, userrec* source, void* dest, bool adding)
1195 {
1196         userrec* s2;
1197         bool faked = false;
1198         if (!source)
1199         {
1200                 s2 = new userrec;
1201                 strlcpy(s2->nick,Config->ServerName,NICKMAX);
1202                 strlcpy(s2->modes,"o",52);
1203                 s2->fd = -1;
1204                 source = s2;
1205                 faked = true;
1206         }
1207         string_list p;
1208         p.clear();
1209         if (ModeDefined(umode,MT_CLIENT))
1210         {
1211                 for (int i = 0; i <= MODCOUNT; i++)
1212                 {
1213                         if (modules[i]->OnExtendedMode(source,(void*)dest,umode,MT_CLIENT,adding,p))
1214                         {
1215                                 log(DEBUG,"Module %s claims umode %c",Config->module_names[i].c_str(),umode);
1216                                 return true;
1217                         }
1218                 }
1219                 log(DEBUG,"No module claims umode %c",umode);
1220                 if (faked)
1221                 {
1222                         delete s2;
1223                         source = NULL;
1224                 }
1225                 return false;
1226         }
1227         else
1228         {
1229                 if (faked)
1230                 {
1231                         delete s2;
1232                         source = NULL;
1233                 }
1234                 return false;
1235         }
1236 }
1237
1238 void cmd_mode::Handle (char **parameters, int pcnt, userrec *user)
1239 {
1240         chanrec* Ptr;
1241         userrec* dest;
1242         int can_change;
1243         int direction = 1;
1244         char outpars[MAXBUF];
1245
1246         dest = Find(parameters[0]);
1247
1248         if (!user)
1249         {
1250                 return;
1251         }
1252
1253         if ((dest) && (pcnt == 1))
1254         {
1255                 WriteServ(user->fd,"221 %s :+%s",dest->nick,dest->modes);
1256                 return;
1257         }
1258
1259         if ((dest) && (pcnt > 1))
1260         {
1261                 std::string tidied = ServerInstance->ModeGrok->CompressModes(parameters[1],false);
1262                 parameters[1] = (char*)tidied.c_str();
1263
1264                 char dmodes[MAXBUF];
1265                 strlcpy(dmodes,dest->modes,52);
1266                 log(DEBUG,"pulled up dest user modes: %s",dmodes);
1267
1268                 can_change = 0;
1269                 if (user != dest)
1270                 {
1271                         if ((strchr(user->modes,'o')) || (is_uline(user->server)))
1272                         {
1273                                 can_change = 1;
1274                         }
1275                 }
1276                 else
1277                 {
1278                         can_change = 1;
1279                 }
1280                 if (!can_change)
1281                 {
1282                         WriteServ(user->fd,"482 %s :Can't change mode for other users",user->nick);
1283                         return;
1284                 }
1285
1286                 outpars[0] = '+';
1287                 outpars[1] = 0;
1288                 direction = 1;
1289
1290                 if ((parameters[1][0] != '+') && (parameters[1][0] != '-'))
1291                         return;
1292
1293                 for (unsigned int i = 0; i < strlen(parameters[1]); i++)
1294                 {
1295                         if (parameters[1][i] == ' ')
1296                                 continue;
1297                         if (parameters[1][i] == '+')
1298                         {
1299                                 if (direction != 1)
1300                                 {
1301                                         int t = strlen(outpars)-1;
1302                                         if ((outpars[t] == '+') || (outpars[t] == '-'))
1303                                         {
1304                                                 outpars[t] = '+';
1305                                         }
1306                                         else
1307                                         {
1308                                                 strcat(outpars,"+");
1309                                         }
1310                                 }
1311                                 direction = 1;
1312                         }
1313                         else
1314                         if (parameters[1][i] == '-')
1315                         {
1316                                 if (direction != 0)
1317                                 {
1318                                         int t = strlen(outpars)-1;
1319                                         if ((outpars[t] == '+') || (outpars[t] == '-'))
1320                                         {
1321                                                 outpars[t] = '-';
1322                                         }
1323                                         else
1324                                         {
1325                                                 strcat(outpars,"-");
1326                                         }
1327                                 }
1328                                 direction = 0;
1329                         }
1330                         else
1331                         {
1332                                 can_change = 0;
1333                                 if (strchr(user->modes,'o'))
1334                                 {
1335                                         can_change = 1;
1336                                 }
1337                                 else
1338                                 {
1339                                         if ((parameters[1][i] == 'i') || (parameters[1][i] == 'w') || (parameters[1][i] == 's') || (ServerInstance->ModeGrok->AllowedUmode(parameters[1][i],user->modes,direction,false)))
1340                                         {
1341                                                 can_change = 1;
1342                                         }
1343                                 }
1344                                 if (can_change)
1345                                 {
1346                                         if (direction == 1)
1347                                         {
1348                                                 if ((!strchr(dmodes,parameters[1][i])) && (ServerInstance->ModeGrok->AllowedUmode(parameters[1][i],user->modes,true,false)))
1349                                                 {
1350                                                         char umode = parameters[1][i];
1351                                                         if ((ServerInstance->ModeGrok->ProcessModuleUmode(umode, user, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
1352                                                         {
1353                                                                 int q = strlen(dmodes);
1354                                                                 int r = strlen(outpars);
1355                                                                 dmodes[q+1]='\0';
1356                                                                 dmodes[q] = parameters[1][i];
1357                                                                 outpars[r+1]='\0';
1358                                                                 outpars[r] = parameters[1][i];
1359                                                                 if (parameters[1][i] == 'o')
1360                                                                 {
1361                                                                         FOREACH_MOD(I_OnGlobalOper,OnGlobalOper(dest));
1362                                                                 }
1363                                                         }
1364                                                 }
1365                                         }
1366                                         else
1367                                         {
1368                                                 if ((ServerInstance->ModeGrok->AllowedUmode(parameters[1][i],user->modes,false,false)) && (strchr(dmodes,parameters[1][i])))
1369                                                 {
1370                                                         char umode = parameters[1][i];
1371                                                         if ((ServerInstance->ModeGrok->ProcessModuleUmode(umode, user, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
1372                                                         {
1373                                                                 unsigned int q = 0;
1374                                                                 char temp[MAXBUF];
1375                                                                 char moo[MAXBUF];
1376
1377                                                                 unsigned int r = strlen(outpars);
1378                                                                 outpars[r+1]='\0';
1379                                                                 outpars[r] = parameters[1][i];
1380
1381                                                                 *temp = 0;
1382                                                                 for (q = 0; q < strlen(dmodes); q++)
1383                                                                 {
1384                                                                         if (dmodes[q] != parameters[1][i])
1385                                                                         {
1386                                                                                 moo[0] = dmodes[q];
1387                                                                                 moo[1] = '\0';
1388                                                                                 strlcat(temp,moo,MAXBUF);
1389                                                                         }
1390                                                                 }
1391                                                                 strlcpy(dmodes,temp,52);
1392
1393                                                                 if (umode == 'o')
1394                                                                 {
1395                                                                         *dest->oper = 0;
1396                                                                         DeleteOper(dest);
1397                                                                 }
1398                                                         }
1399                                                 }
1400                                         }
1401                                 }
1402                         }
1403                 }
1404                 if (outpars[0])
1405                 {
1406                         char b[MAXBUF];
1407                         strlcpy(b,"",MAXBUF);
1408                         unsigned int z = 0;
1409                         unsigned int i = 0;
1410                         while (i < strlen (outpars))
1411                         {
1412                                 b[z++] = outpars[i++];
1413                                 b[z] = '\0';
1414                                 if (i<strlen(outpars)-1)
1415                                 {
1416                                         if (((outpars[i] == '-') || (outpars[i] == '+')) && ((outpars[i+1] == '-') || (outpars[i+1] == '+')))
1417                                         {
1418                                                 // someones playing silly buggers and trying
1419                                                 // to put a +- or -+ into the line...
1420                                                 i++;
1421                                         }
1422                                 }
1423                                 if (i == strlen(outpars)-1)
1424                                 {
1425                                         if ((outpars[i] == '-') || (outpars[i] == '+'))
1426                                         {
1427                                                 i++;
1428                                         }
1429                                 }
1430                         }
1431
1432                         z = strlen(b)-1;
1433                         if ((b[z] == '-') || (b[z] == '+'))
1434                                 b[z] = '\0';
1435
1436                         if ((!b[0]) || (!strcmp(b,"+")) || (!strcmp(b,"-")))
1437                                 return;
1438
1439                         if (strcmp(b,""))
1440                         {
1441                                 WriteTo(user, dest, "MODE %s :%s", dest->nick, b);
1442                                 FOREACH_MOD(I_OnMode,OnMode(user, dest, TYPE_USER, b));
1443                         }
1444
1445                         if (strlen(dmodes)>MAXMODES)
1446                         {
1447                                 dmodes[MAXMODES-1] = '\0';
1448                         }
1449                         log(DEBUG,"Stripped mode line");
1450                         log(DEBUG,"Line dest is now %s",dmodes);
1451                         strlcpy(dest->modes,dmodes,52);
1452
1453                 }
1454
1455                 return;
1456         }
1457
1458         Ptr = FindChan(parameters[0]);
1459         if (Ptr)
1460         {
1461                 if (pcnt == 1)
1462                 {
1463                         /* just /modes #channel */
1464                         WriteServ(user->fd,"324 %s %s +%s",user->nick, Ptr->name, chanmodes(Ptr,has_channel(user,Ptr)));
1465                         WriteServ(user->fd,"329 %s %s %d", user->nick, Ptr->name, Ptr->created);
1466                         return;
1467                 }
1468                 else
1469                 if (pcnt == 2)
1470                 {
1471                         char* mode = parameters[1];
1472                         if (*mode == '+')
1473                                 mode++;
1474                         int MOD_RESULT = 0;
1475                         FOREACH_RESULT(I_OnRawMode,OnRawMode(user, Ptr, *mode, "", false, 0));
1476                         if (!MOD_RESULT)
1477                         {
1478                                 if (*mode == 'b')
1479                                 {
1480
1481                                         for (BanList::iterator i = Ptr->bans.begin(); i != Ptr->bans.end(); i++)
1482                                         {
1483                                                 WriteServ(user->fd,"367 %s %s %s %s %d",user->nick, Ptr->name, i->data, i->set_by, i->set_time);
1484                                         }
1485                                         WriteServ(user->fd,"368 %s %s :End of channel ban list",user->nick, Ptr->name);
1486                                         return;
1487                                 }
1488                                 if ((ModeDefined(*mode,MT_CHANNEL)) && (ModeIsListMode(*mode,MT_CHANNEL)))
1489                                 {
1490                                         // list of items for an extmode
1491                                         log(DEBUG,"Calling OnSendList for all modules, list output for mode %c",*mode);
1492                                         FOREACH_MOD(I_OnSendList,OnSendList(user,Ptr,*mode));
1493                                         return;
1494                                 }
1495                         }
1496                 }
1497
1498                 if (((Ptr) && (!has_channel(user,Ptr))) && (!is_uline(user->server)) && (IS_LOCAL(user)))
1499                 {
1500                         WriteServ(user->fd,"442 %s %s :You're not on that channel!",user->nick, Ptr->name);
1501                         return;
1502                 }
1503
1504                 if (Ptr)
1505                 {
1506                         int MOD_RESULT = 0;
1507                         FOREACH_RESULT(I_OnAccessCheck,OnAccessCheck(user,NULL,Ptr,AC_GENERAL_MODE));
1508
1509                         if (MOD_RESULT == ACR_DENY)
1510                                 return;
1511                         if (MOD_RESULT == ACR_DEFAULT)
1512                         {
1513                                 if ((cstatus(user,Ptr) < STATUS_HOP) && (IS_LOCAL(user)))
1514                                 {
1515                                         WriteServ(user->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel",user->nick, Ptr->name);
1516                                         return;
1517                                 }
1518                         }
1519
1520                         ServerInstance->ModeGrok->ProcessModes(parameters,user,Ptr,cstatus(user,Ptr),pcnt,false,false,false);
1521                 }
1522         }
1523         else
1524         {
1525                 WriteServ(user->fd,"401 %s %s :No such nick/channel",user->nick, parameters[0]);
1526         }
1527 }
1528
1529
1530
1531
1532 void ModeParser::ServerMode(char **parameters, int pcnt, userrec *user)
1533 {
1534         chanrec* Ptr;
1535         userrec* dest;
1536         int can_change;
1537         int direction = 1;
1538         char outpars[MAXBUF];
1539
1540         dest = Find(parameters[0]);
1541
1542         // fix: ChroNiCk found this - we cant use this as debug if its null!
1543         if (dest)
1544         {
1545                 log(DEBUG,"server_mode on %s",dest->nick);
1546         }
1547
1548         if ((dest) && (pcnt > 1))
1549         {
1550                 std::string tidied = ServerInstance->ModeGrok->CompressModes(parameters[1],false);
1551                 parameters[1] = (char*)tidied.c_str();
1552
1553                 char dmodes[MAXBUF];
1554                 strlcpy(dmodes,dest->modes,52);
1555
1556                 outpars[0] = '+';
1557                 outpars[1] = 0;
1558                 direction = 1;
1559
1560                 if ((parameters[1][0] != '+') && (parameters[1][0] != '-'))
1561                         return;
1562
1563                 for (unsigned int i = 0; i < strlen(parameters[1]); i++)
1564                 {
1565                         if (parameters[1][i] == ' ')
1566                                 continue;
1567                         if (parameters[1][i] == '+')
1568                         {
1569                                 if (direction != 1)
1570                                 {
1571                                         int t = strlen(outpars)-1;
1572                                         if ((outpars[t] == '+') || (outpars[t] == '-'))
1573                                         {
1574                                                 outpars[t] = '+';
1575                                         }
1576                                         else
1577                                         {
1578                                                 strcat(outpars,"+");
1579                                         }
1580                                 }
1581                                 direction = 1;
1582                         }
1583                         else
1584                         if (parameters[1][i] == '-')
1585                         {
1586                                 if (direction != 0)
1587                                 {
1588                                         int t = strlen(outpars)-1;
1589                                         if ((outpars[t] == '+') || (outpars[t] == '-'))
1590                                         {
1591                                                 outpars[t] = '-';
1592                                         }
1593                                         else
1594                                         {
1595                                                 strcat(outpars,"-");
1596                                         }
1597                                 }
1598                                 direction = 0;
1599                         }
1600                         else
1601                         {
1602                                 log(DEBUG,"begin mode processing entry");
1603                                 can_change = 1;
1604                                 if (can_change)
1605                                 {
1606                                         if (direction == 1)
1607                                         {
1608                                                 log(DEBUG,"umode %c being added",parameters[1][i]);
1609                                                 if ((!strchr(dmodes,parameters[1][i])) && (ServerInstance->ModeGrok->AllowedUmode(parameters[1][i],user->modes,true,true)))
1610                                                 {
1611                                                         char umode = parameters[1][i];
1612                                                         log(DEBUG,"umode %c is an allowed umode",umode);
1613                                                         if ((ServerInstance->ModeGrok->ProcessModuleUmode(umode, user, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
1614                                                         {
1615                                                                 int v1 = strlen(dmodes);
1616                                                                 int v2 = strlen(outpars);
1617                                                                 dmodes[v1+1]='\0';
1618                                                                 dmodes[v1] = parameters[1][i];
1619                                                                 outpars[v2+1]='\0';
1620                                                                 outpars[v2] = parameters[1][i];
1621                                                         }
1622                                                 }
1623                                         }
1624                                         else
1625                                         {
1626                                                 // can only remove a mode they already have
1627                                                 log(DEBUG,"umode %c being removed",parameters[1][i]);
1628                                                 if ((ServerInstance->ModeGrok->AllowedUmode(parameters[1][i],user->modes,false,true)) && (strchr(dmodes,parameters[1][i])))
1629                                                 {
1630                                                         char umode = parameters[1][i];
1631                                                         log(DEBUG,"umode %c is an allowed umode",umode);
1632                                                         if ((ServerInstance->ModeGrok->ProcessModuleUmode(umode, user, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
1633                                                         {
1634                                                                 unsigned int q = 0;
1635                                                                 char temp[MAXBUF];
1636                                                                 char moo[MAXBUF];
1637
1638                                                                 unsigned int v1 = strlen(outpars);
1639                                                                 outpars[v1+1]='\0';
1640                                                                 outpars[v1] = parameters[1][i];
1641                                                                 *temp = 0;
1642                                                                 for (q = 0; q < strlen(dmodes); q++)
1643                                                                 {
1644                                                                         if (dmodes[q] != parameters[1][i])
1645                                                                         {
1646                                                                                 moo[0] = dmodes[q];
1647                                                                                 moo[1] = '\0';
1648                                                                                 strlcat(temp,moo,MAXBUF);
1649                                                                         }
1650                                                                 }
1651                                                                 strlcpy(dmodes,temp,52);
1652                                                         }
1653                                                 }
1654                                         }
1655                                 }
1656                         }
1657                 }
1658                 if (outpars[0])
1659                 {
1660                         char b[MAXBUF];
1661                         strlcpy(b,"",MAXBUF);
1662                         unsigned int z = 0;
1663                         unsigned int i = 0;
1664                         while (i < strlen (outpars))
1665                         {
1666                                 b[z++] = outpars[i++];
1667                                 b[z] = '\0';
1668                                 if (i<strlen(outpars)-1)
1669                                 {
1670                                         if (((outpars[i] == '-') || (outpars[i] == '+')) && ((outpars[i+1] == '-') || (outpars[i+1] == '+')))
1671                                         {
1672                                                 // someones playing silly buggers and trying
1673                                                 // to put a +- or -+ into the line...
1674                                                 i++;
1675                                         }
1676                                 }
1677                                 if (i == strlen(outpars)-1)
1678                                 {
1679                                         if ((outpars[i] == '-') || (outpars[i] == '+'))
1680                                         {
1681                                                 i++;
1682                                         }
1683                                 }
1684                         }
1685
1686                         z = strlen(b)-1;
1687                         if ((b[z] == '-') || (b[z] == '+'))
1688                                 b[z] = '\0';
1689
1690                         if ((!b[0]) || (!strcmp(b,"+")) || (!strcmp(b,"-")))
1691                                 return;
1692
1693                         if (strcmp(b,""))
1694                         {
1695                                 WriteTo(user, dest, "MODE %s :%s", dest->nick, b);
1696                                 FOREACH_MOD(I_OnMode,OnMode(user, dest, TYPE_USER, b));
1697                         }
1698
1699                         if (strlen(dmodes)>MAXMODES)
1700                         {
1701                                 dmodes[MAXMODES-1] = '\0';
1702                         }
1703                         log(DEBUG,"Stripped mode line");
1704                         log(DEBUG,"Line dest is now %s",dmodes);
1705                         strlcpy(dest->modes,dmodes,MAXMODES);
1706
1707                 }
1708
1709                 return;
1710         }
1711
1712         Ptr = FindChan(parameters[0]);
1713         if (Ptr)
1714         {
1715                 ServerInstance->ModeGrok->ProcessModes(parameters,user,Ptr,STATUS_OP,pcnt,true,false,false);
1716         }
1717         else
1718         {
1719                 WriteServ(user->fd,"401 %s %s :No such nick/channel",user->nick, parameters[0]);
1720         }
1721 }