src/mode.cpp

   1 /*       +------------------------------------+
   2  *       | Inspire Internet Relay Chat Daemon |
   3  *       +------------------------------------+
   4  *
   5  *  InspIRCd is copyright (C) 2002-2006 ChatSpike-Dev.
   6  *                       E-mail:
   7  *                <brain@chatspike.net>
   8  *                <Craig@chatspike.net>
   9  *
  10  * Written by Craig Edwards, Craig McLure, and others.
  11  * This program is free but copyrighted software; see
  12  *            the file COPYING for details.
  13  *
  14  * ---------------------------------------------------
  15  */
  16
  17 using namespace std;
  18
  19 #include "inspircd_config.h"
  20 #include "inspircd.h"
  21 #include "inspircd_io.h"
  22 #include <unistd.h>
  23 #include <sys/errno.h>
  24 #include <time.h>
  25 #include <string>
  26 #ifdef GCC3
  27 #include <ext/hash_map>
  28 #else
  29 #include <hash_map>
  30 #endif
  31 #include <map>
  32 #include <sstream>
  33 #include <vector>
  34 #include <deque>
  35 #include "connection.h"
  36 #include "users.h"
  37 #include "ctables.h"
  38 #include "globals.h"
  39 #include "modules.h"
  40 #include "dynamic.h"
  41 #include "wildcard.h"
  42 #include "message.h"
  43 #include "commands.h"
  44 #include "xline.h"
  45 #include "inspstring.h"
  46 #include "helperfuncs.h"
  47 #include "mode.h"
  48
  49 extern int MODCOUNT;
  50 extern std::vector<Module*> modules;
  51 extern std::vector<ircd_module*> factory;
  52 extern InspIRCd* ServerInstance;
  53 extern ServerConfig* Config;
  54
  55 extern time_t TIME;
  56
  57 char* ModeParser::GiveOps(userrec *user,char *dest,chanrec *chan,int status)
  58 {
  59         userrec *d;
  60
  61         if ((!user) || (!dest) || (!chan) || (!*dest))
  62         {
  63                 log(DEFAULT,"*** BUG *** GiveOps was given an invalid parameter");
  64                 return NULL;
  65         }
  66         d = Find(dest);
  67         if (!d)
  68         {
  69                 log(DEFAULT,"the target nickname given to GiveOps couldnt be found");
  70                 WriteServ(user->fd,"401 %s %s :No such nick/channel",user->nick, dest);
  71                 return NULL;
  72         }
  73         else
  74         {
  75                 if (user->server == d->server)
  76                 {
  77                         int MOD_RESULT = 0;
  78                         FOREACH_RESULT(I_OnAccessCheck,OnAccessCheck(user,d,chan,AC_OP));
  79
  80                         if (MOD_RESULT == ACR_DENY)
  81                                 return NULL;
  82                         if (MOD_RESULT == ACR_DEFAULT)
  83                         {
  84                                 if ((status < STATUS_OP) && (!is_uline(user->server)) && (IS_LOCAL(user)))
  85                                 {
  86                                         log(DEBUG,"%s cant give ops to %s because they nave status %d and needs %d",user->nick,dest,status,STATUS_OP);
  87                                         WriteServ(user->fd,"482 %s %s :You're not a channel operator",user->nick, chan->name);
  88                                         return NULL;
  89                                 }
  90                         }
  91                 }
  92
  93
  94                 for (unsigned int i = 0; i < d->chans.size(); i++)
  95                 {
  96                         if ((d->chans[i].channel != NULL) && (chan != NULL))
  97                         if (!strcasecmp(d->chans[i].channel->name,chan->name))
  98                         {
  99                                 if (d->chans[i].uc_modes & UCMODE_OP)
 100                                 {
 101                                         /* mode already set on user, dont allow multiple */
 102                                         return NULL;
 103                                 }
 104                                 d->chans[i].uc_modes = d->chans[i].uc_modes | UCMODE_OP;
 105                                 d->chans[i].channel->AddOppedUser((char*)d);
 106                                 log(DEBUG,"gave ops: %s %s",d->chans[i].channel->name,d->nick);
 107                                 return d->nick;
 108                         }
 109                 }
 110                 log(DEFAULT,"The target channel given to GiveOps was not in the users mode list");
 111         }
 112         return NULL;
 113 }
 114
 115 char* ModeParser::GiveHops(userrec *user,char *dest,chanrec *chan,int status)
 116 {
 117         userrec *d;
 118
 119         if ((!user) || (!dest) || (!chan) || (!*dest))
 120         {
 121                 log(DEFAULT,"*** BUG *** GiveHops was given an invalid parameter");
 122                 return NULL;
 123         }
 124
 125         d = Find(dest);
 126         if (!d)
 127         {
 128                 WriteServ(user->fd,"401 %s %s :No such nick/channel",user->nick, dest);
 129                 return NULL;
 130         }
 131         else
 132         {
 133                 if (user->server == d->server)
 134                 {
 135                         int MOD_RESULT = 0;
 136                         FOREACH_RESULT(I_OnAccessCheck,OnAccessCheck(user,d,chan,AC_HALFOP));
 137
 138                         if (MOD_RESULT == ACR_DENY)
 139                                 return NULL;
 140                         if (MOD_RESULT == ACR_DEFAULT)
 141                         {
 142                                 if ((status < STATUS_OP) && (!is_uline(user->server)) && (IS_LOCAL(user)))
 143                                 {
 144                                         WriteServ(user->fd,"482 %s %s :You're not a channel operator",user->nick, chan->name);
 145                                         return NULL;
 146                                 }
 147                         }
 148                 }
 149
 150                 for (unsigned int i = 0; i < d->chans.size(); i++)
 151                 {
 152                         if ((d->chans[i].channel != NULL) && (chan != NULL))
 153                         if (!strcasecmp(d->chans[i].channel->name,chan->name))
 154                         {
 155                                 if (d->chans[i].uc_modes & UCMODE_HOP)
 156                                 {
 157                                         /* mode already set on user, dont allow multiple */
 158                                         return NULL;
 159                                 }
 160                                 d->chans[i].uc_modes = d->chans[i].uc_modes | UCMODE_HOP;
 161                                 d->chans[i].channel->AddHalfoppedUser((char*)d);
 162                                 log(DEBUG,"gave h-ops: %s %s",d->chans[i].channel->name,d->nick);
 163                                 return d->nick;
 164                         }
 165                 }
 166         }
 167         return NULL;
 168 }
 169
 170 char* ModeParser::GiveVoice(userrec *user,char *dest,chanrec *chan,int status)
 171 {
 172         userrec *d;
 173
 174         if ((!user) || (!dest) || (!chan) || (!*dest))
 175         {
 176                 log(DEFAULT,"*** BUG *** GiveVoice was given an invalid parameter");
 177                 return NULL;
 178         }
 179
 180         d = Find(dest);
 181         if (!d)
 182         {
 183                 WriteServ(user->fd,"401 %s %s :No such nick/channel",user->nick, dest);
 184                 return NULL;
 185         }
 186         else
 187         {
 188                 if (user->server == d->server)
 189                 {
 190                         int MOD_RESULT = 0;
 191                         FOREACH_RESULT(I_OnAccessCheck,OnAccessCheck(user,d,chan,AC_VOICE));
 192
 193                         if (MOD_RESULT == ACR_DENY)
 194                                 return NULL;
 195                         if (MOD_RESULT == ACR_DEFAULT)
 196                         {
 197                                 if ((status < STATUS_HOP) && (!is_uline(user->server)) && (IS_LOCAL(user)))
 198                                 {
 199                                         WriteServ(user->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel",user->nick, chan->name);
 200                                         return NULL;
 201                                 }
 202                         }
 203                 }
 204
 205                 for (unsigned int i = 0; i < d->chans.size(); i++)
 206                 {
 207                         if ((d->chans[i].channel != NULL) && (chan != NULL))
 208                         if (!strcasecmp(d->chans[i].channel->name,chan->name))
 209                         {
 210                                 if (d->chans[i].uc_modes & UCMODE_VOICE)
 211                                 {
 212                                         /* mode already set on user, dont allow multiple */
 213                                         return NULL;
 214                                 }
 215                                 d->chans[i].uc_modes = d->chans[i].uc_modes | UCMODE_VOICE;
 216                                 d->chans[i].channel->AddVoicedUser((char*)d);
 217                                 log(DEBUG,"gave voice: %s %s",d->chans[i].channel->name,d->nick);
 218                                 return d->nick;
 219                         }
 220                 }
 221         }
 222         return NULL;
 223 }
 224
 225 char* ModeParser::TakeOps(userrec *user,char *dest,chanrec *chan,int status)
 226 {
 227         userrec *d;
 228
 229         if ((!user) || (!dest) || (!chan) || (!*dest))
 230         {
 231                 log(DEFAULT,"*** BUG *** TakeOps was given an invalid parameter");
 232                 return NULL;
 233         }
 234
 235         d = Find(dest);
 236         if (!d)
 237         {
 238                 log(DEBUG,"TakeOps couldnt resolve the target nickname: %s",dest);
 239                 WriteServ(user->fd,"401 %s %s :No such nick/channel",user->nick, dest);
 240                 return NULL;
 241         }
 242         else
 243         {
 244                 if (user->server == d->server)
 245                 {
 246                         int MOD_RESULT = 0;
 247                         FOREACH_RESULT(I_OnAccessCheck,OnAccessCheck(user,d,chan,AC_DEOP));
 248
 249                         if (MOD_RESULT == ACR_DENY)
 250                                 return NULL;
 251                         if (MOD_RESULT == ACR_DEFAULT)
 252                         {
 253                                 if ((status < STATUS_OP) && (!is_uline(user->server)) && (IS_LOCAL(user)) && (IS_LOCAL(user)))
 254                                 {
 255                                         WriteServ(user->fd,"482 %s %s :You are not a channel operator",user->nick, chan->name);
 256                                         return NULL;
 257                                 }
 258                         }
 259                 }
 260
 261                 for (unsigned int i = 0; i < d->chans.size(); i++)
 262                 {
 263                         if ((d->chans[i].channel != NULL) && (chan != NULL))
 264                         if (!strcasecmp(d->chans[i].channel->name,chan->name))
 265                         {
 266                                 if ((d->chans[i].uc_modes & UCMODE_OP) == 0)
 267                                 {
 268                                         /* mode already set on user, dont allow multiple */
 269                                         return NULL;
 270                                 }
 271                                 d->chans[i].uc_modes ^= UCMODE_OP;
 272                                 d->chans[i].channel->DelOppedUser((char*)d);
 273                                 log(DEBUG,"took ops: %s %s",d->chans[i].channel->name,d->nick);
 274                                 return d->nick;
 275                         }
 276                 }
 277                 log(DEBUG,"TakeOps couldnt locate the target channel in the target users list");
 278         }
 279         return NULL;
 280 }
 281
 282 char* ModeParser::TakeHops(userrec *user,char *dest,chanrec *chan,int status)
 283 {
 284         userrec *d;
 285
 286         if ((!user) || (!dest) || (!chan) || (!*dest))
 287         {
 288                 log(DEFAULT,"*** BUG *** TakeHops was given an invalid parameter");
 289                 return NULL;
 290         }
 291
 292         d = Find(dest);
 293         if (!d)
 294         {
 295                 WriteServ(user->fd,"401 %s %s :No such nick/channel",user->nick, dest);
 296                 return NULL;
 297         }
 298         else
 299         {
 300                 if (user->server == d->server)
 301                 {
 302                         int MOD_RESULT = 0;
 303                         FOREACH_RESULT(I_OnAccessCheck,OnAccessCheck(user,d,chan,AC_DEHALFOP));
 304
 305                         if (MOD_RESULT == ACR_DENY)
 306                                 return NULL;
 307                         if (MOD_RESULT == ACR_DEFAULT)
 308                         {
 309                                 /* Tweak by Brain suggested by w00t, allow a halfop to dehalfop themselves */
 310                                 if ((user != d) && ((status < STATUS_OP) && (!is_uline(user->server))) && (IS_LOCAL(user)))
 311                                 {
 312                                         WriteServ(user->fd,"482 %s %s :You are not a channel operator",user->nick, chan->name);
 313                                         return NULL;
 314                                 }
 315                         }
 316                 }
 317
 318                 for (unsigned int i = 0; i < d->chans.size(); i++)
 319                 {
 320                         if ((d->chans[i].channel != NULL) && (chan != NULL))
 321                         if (!strcasecmp(d->chans[i].channel->name,chan->name))
 322                         {
 323                                 if ((d->chans[i].uc_modes & UCMODE_HOP) == 0)
 324                                 {
 325                                         /* mode already set on user, dont allow multiple */
 326                                         return NULL;
 327                                 }
 328                                 d->chans[i].uc_modes ^= UCMODE_HOP;
 329                                 d->chans[i].channel->DelHalfoppedUser((char*)d);
 330                                 log(DEBUG,"took h-ops: %s %s",d->chans[i].channel->name,d->nick);
 331                                 return d->nick;
 332                         }
 333                 }
 334         }
 335         return NULL;
 336 }
 337
 338 char* ModeParser::TakeVoice(userrec *user,char *dest,chanrec *chan,int status)
 339 {
 340         userrec *d;
 341
 342         if ((!user) || (!dest) || (!chan) || (!*dest))
 343         {
 344                 log(DEFAULT,"*** BUG *** TakeVoice was given an invalid parameter");
 345                 return NULL;
 346         }
 347
 348         d = Find(dest);
 349         if (!d)
 350         {
 351                 WriteServ(user->fd,"401 %s %s :No such nick/channel",user->nick, dest);
 352                 return NULL;
 353         }
 354         else
 355         {
 356                 if (user->server == d->server)
 357                 {
 358                         int MOD_RESULT = 0;
 359                         FOREACH_RESULT(I_OnAccessCheck,OnAccessCheck(user,d,chan,AC_DEVOICE));
 360
 361                         if (MOD_RESULT == ACR_DENY)
 362                                 return NULL;
 363                         if (MOD_RESULT == ACR_DEFAULT)
 364                         {
 365                                 if ((status < STATUS_HOP) && (!is_uline(user->server)) && (IS_LOCAL(user)))
 366                                 {
 367                                         WriteServ(user->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel",user->nick, chan->name);
 368                                         return NULL;
 369                                 }
 370                         }
 371                 }
 372
 373                 for (unsigned int i = 0; i < d->chans.size(); i++)
 374                 {
 375                         if ((d->chans[i].channel != NULL) && (chan != NULL))
 376                         if (!strcasecmp(d->chans[i].channel->name,chan->name))
 377                         {
 378                                 if ((d->chans[i].uc_modes & UCMODE_VOICE) == 0)
 379                                 {
 380                                         /* mode already set on user, dont allow multiple */
 381                                         return NULL;
 382                                 }
 383                                 d->chans[i].uc_modes ^= UCMODE_VOICE;
 384                                 d->chans[i].channel->DelVoicedUser((char*)d);
 385                                 log(DEBUG,"took voice: %s %s",d->chans[i].channel->name,d->nick);
 386                                 return d->nick;
 387                         }
 388                 }
 389         }
 390         return NULL;
 391 }
 392
 393 char* ModeParser::AddBan(userrec *user,char *dest,chanrec *chan,int status)
 394 {
 395         BanItem b;
 396         int toomanyexclamation = 0;
 397         int toomanyat = 0;
 398
 399         if ((!user) || (!dest) || (!chan) || (!*dest))
 400         {
 401                 log(DEFAULT,"*** BUG *** AddBan was given an invalid parameter");
 402                 return NULL;
 403         }
 404
 405         for (char* i = dest; *i; i++)
 406         {
 407                 if ((*i < 32) || (*i > 126))
 408                 {
 409                         return NULL;
 410                 }
 411                 else if (*i == '!')
 412                 {
 413                         toomanyexclamation++;
 414                 }
 415                 else if (*i == '@')
 416                 {
 417                         toomanyat++;
 418                 }
 419         }
 420
 421         if (toomanyexclamation != 1 || toomanyat != 1)
 422                 /*
 423                  * this stops sillyness like n!u!u!u@h, though note that most
 424                  * ircds don't actually verify banmask validity. --w00t
 425                  */
 426                 return NULL;
 427
 428         long maxbans = GetMaxBans(chan->name);
 429         if ((unsigned)chan->bans.size() > (unsigned)maxbans)
 430         {
 431                 WriteServ(user->fd,"478 %s %s :Channel ban list for %s is full (maximum entries for this channel is %d)",user->nick, chan->name,chan->name,maxbans);
 432                 return NULL;
 433         }
 434
 435         log(DEBUG,"AddBan: %s %s",chan->name,user->nick);
 436
 437         int MOD_RESULT = 0;
 438         FOREACH_RESULT(I_OnAddBan,OnAddBan(user,chan,dest));
 439         if (MOD_RESULT)
 440                 return NULL;
 441
 442         TidyBan(dest);
 443         for (BanList::iterator i = chan->bans.begin(); i != chan->bans.end(); i++)
 444         {
 445                 if (!strcasecmp(i->data,dest))
 446                 {
 447                         // dont allow a user to set the same ban twice
 448                         return NULL;
 449                 }
 450         }
 451
 452         b.set_time = TIME;
 453         strlcpy(b.data,dest,MAXBUF);
 454         if (*user->nick)
 455         {
 456                 strlcpy(b.set_by,user->nick,NICKMAX-1);
 457         }
 458         else
 459         {
 460                 strlcpy(b.set_by,Config->ServerName,NICKMAX-1);
 461         }
 462         chan->bans.push_back(b);
 463         return dest;
 464 }
 465
 466 char* ModeParser::TakeBan(userrec *user,char *dest,chanrec *chan,int status)
 467 {
 468         if ((!user) || (!dest) || (!chan) || (!*dest)) {
 469                 log(DEFAULT,"*** BUG *** TakeBan was given an invalid parameter");
 470                 return 0;
 471         }
 472
 473         log(DEBUG,"del_ban: %s %s",chan->name,user->nick);
 474         for (BanList::iterator i = chan->bans.begin(); i != chan->bans.end(); i++)
 475         {
 476                 if (!strcasecmp(i->data,dest))
 477                 {
 478                         int MOD_RESULT = 0;
 479                         FOREACH_RESULT(I_OnDelBan,OnDelBan(user,chan,dest));
 480                         if (MOD_RESULT)
 481                                 return NULL;
 482                         chan->bans.erase(i);
 483                         return dest;
 484                 }
 485         }
 486         return NULL;
 487 }
 488
 489 // tidies up redundant modes, e.g. +nt-nt+i becomes +-+i,
 490 // a section further down the chain tidies up the +-+- crap.
 491 std::string ModeParser::CompressModes(std::string modes,bool channelmodes)
 492 {
 493         int counts[127];
 494         bool active[127];
 495         memset(counts,0,sizeof(counts));
 496         memset(active,0,sizeof(active));
 497         for (unsigned int i = 0; i < modes.length(); i++)
 498         {
 499                 if ((modes[i] == '+') || (modes[i] == '-'))
 500                         continue;
 501                 if (channelmodes)
 502                 {
 503                         if ((strchr("itnmsp",modes[i])) || ((ModeDefined(modes[i],MT_CHANNEL)) && (ModeDefinedOn(modes[i],MT_CHANNEL)==0) && (ModeDefinedOff(modes[i],MT_CHANNEL)==0)))
 504                         {
 505                                 log(DEBUG,"Tidy mode %c",modes[i]);
 506                                 counts[(unsigned int)modes[i]]++;
 507                                 active[(unsigned int)modes[i]] = true;
 508                         }
 509                 }
 510                 else
 511                 {
 512                         log(DEBUG,"Tidy mode %c",modes[i]);
 513                         counts[(unsigned int)modes[i]]++;
 514                         active[(unsigned int)modes[i]] = true;
 515                 }
 516         }
 517         for (int j = 65; j < 127; j++)
 518         {
 519                 if ((counts[j] > 1) && (active[j] == true))
 520                 {
 521                         static char v[2];
 522                         v[0] = (unsigned char)j;
 523                         v[1] = '\0';
 524                         std::string mode_str = v;
 525                         std::string::size_type pos = modes.find(mode_str);
 526                         if (pos != std::string::npos)
 527                         {
 528                                 log(DEBUG,"all occurances of mode %c to be deleted...",(unsigned char)j);
 529                                 while (modes.find(mode_str) != std::string::npos)
 530                                         modes.erase(modes.find(mode_str),1);
 531                                 log(DEBUG,"New mode line: %s",modes.c_str());
 532                         }
 533                 }
 534         }
 535         return modes;
 536 }
 537
 538 void ModeParser::ProcessModes(char **parameters,userrec* user,chanrec *chan,int status, int pcnt, bool servermode, bool silent, bool local)
 539 {
 540         if (!parameters) {
 541                 log(DEFAULT,"*** BUG *** process_modes was given an invalid parameter");
 542                 return;
 543         }
 544
 545         char modelist[MAXBUF];
 546         char outlist[MAXBUF];
 547         char outstr[MAXBUF];
 548         char outpars[32][MAXBUF];
 549         int param = 2;
 550         int pc = 0;
 551         int ptr = 0;
 552         int mdir = 1;
 553         char* r = NULL;
 554         bool k_set = false, l_set = false, previously_set_l = false, previously_unset_l = false, previously_set_k = false, previously_unset_k = false;
 555
 556         if (pcnt < 2)
 557         {
 558                 return;
 559         }
 560
 561         int MOD_RESULT = 0;
 562
 563         if (IS_LOCAL(user))
 564         {
 565                 FOREACH_RESULT(I_OnAccessCheck,OnAccessCheck(user,NULL,chan,AC_GENERAL_MODE));
 566                 if (MOD_RESULT == ACR_DENY)
 567                         return;
 568         }
 569
 570         log(DEBUG,"process_modes: start: parameters=%d",pcnt);
 571
 572         strlcpy(modelist,parameters[1],MAXBUF); /* mode list, e.g. +oo-o *
 573                                                  * parameters[2] onwards are parameters for
 574                                                  * modes that require them :) */
 575         *outlist = '+';
 576         *(outlist+1) = 0;
 577         mdir = 1;
 578
 579         log(DEBUG,"process_modes: modelist: %s",modelist);
 580
 581         std::string tidied = this->CompressModes(modelist,true);
 582         strlcpy(modelist,tidied.c_str(),MAXBUF);
 583
 584         int len = tidied.length();
 585         while (modelist[len-1] == ' ')
 586                 modelist[--len] = '\0';
 587
 588         for (char* modechar = modelist; *modechar; ptr++, modechar++)
 589         {
 590                 r = NULL;
 591
 592                 /* If we have more than MAXMODES changes in one line,
 593                  * drop all after the MAXMODES
 594                  */
 595                 if (pc > MAXMODES-1)
 596                         break;
 597
 598                 {
 599                         switch (*modechar)
 600                         {
 601                                 case '-':
 602                                         if (mdir != 0)
 603                                         {
 604                                                 int t = strlen(outlist)-1;
 605                                                 if ((outlist[t] == '+') || (outlist[t] == '-'))
 606                                                 {
 607                                                         outlist[t] = '-';
 608                                                 }
 609                                                 else
 610                                                 {
 611                                                         strcat(outlist,"-");
 612                                                 }
 613                                         }
 614                                         mdir = 0;
 615
 616                                 break;
 617
 618                                 case '+':
 619                                         if (mdir != 1)
 620                                         {
 621                                                 int t = strlen(outlist)-1;
 622                                                 if ((outlist[t] == '+') || (outlist[t] == '-'))
 623                                                 {
 624                                                         outlist[t] = '+';
 625                                                 }
 626                                                 else
 627                                                 {
 628                                                         strcat(outlist,"+");
 629                                                 }
 630                                         }
 631                                         mdir = 1;
 632                                 break;
 633
 634                                 case 'o':
 635                                         log(DEBUG,"Ops");
 636                                         if ((param >= pcnt)) break;
 637                                         log(DEBUG,"Enough parameters left");
 638                                         r = NULL;
 639                                         if (mdir == 1)
 640                                         {
 641                                                 MOD_RESULT = 0;
 642                                                 FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'o', parameters[param], true, 1));
 643                                                 if (!MOD_RESULT)
 644                                                 {
 645                                                         log(DEBUG,"calling GiveOps");
 646                                                         r = GiveOps(user,parameters[param++],chan,status);
 647                                                 }
 648                                                 else param++;
 649                                         }
 650                                         else
 651                                         {
 652                                                 MOD_RESULT = 0;
 653                                                 FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'o', parameters[param], false, 1));
 654                                                 if (!MOD_RESULT)
 655                                                 {
 656                                                         log(DEBUG,"calling TakeOps");
 657                                                         r = TakeOps(user,parameters[param++],chan,status);
 658                                                 }
 659                                                 else param++;
 660                                         }
 661                                         if (r)
 662                                         {
 663                                                 strlcat(outlist,"o",MAXBUF);
 664                                                 strlcpy(outpars[pc++],r,MAXBUF);
 665                                         }
 666                                 break;
 667
 668                                 case 'h':
 669                                         if (((param >= pcnt)) || (!Config->AllowHalfop)) break;
 670                                         r = NULL;
 671                                         if (mdir == 1)
 672                                         {
 673                                                 MOD_RESULT = 0;
 674                                                 FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'h', parameters[param], true, 1));
 675                                                 if (!MOD_RESULT)
 676                                                 {
 677                                                         r = GiveHops(user,parameters[param++],chan,status);
 678                                                 }
 679                                                 else param++;
 680                                         }
 681                                         else
 682                                         {
 683                                                 MOD_RESULT = 0;
 684                                                 FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'h', parameters[param], false, 1));
 685                                                 if (!MOD_RESULT)
 686                                                 {
 687                                                         r = TakeHops(user,parameters[param++],chan,status);
 688                                                 }
 689                                                 else param++;
 690                                         }
 691                                         if (r)
 692                                         {
 693                                                 strlcat(outlist,"h",MAXBUF);
 694                                                 strlcpy(outpars[pc++],r,MAXBUF);
 695                                         }
 696                                 break;
 697
 698
 699                                 case 'v':
 700                                         if ((param >= pcnt)) break;
 701                                         r = NULL;
 702                                         if (mdir == 1)
 703                                         {
 704                                                 MOD_RESULT = 0;
 705                                                 FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'v', parameters[param], true, 1));
 706                                                 if (!MOD_RESULT)
 707                                                 {
 708                                                         r = GiveVoice(user,parameters[param++],chan,status);
 709                                                 }
 710                                                 else param++;
 711                                         }
 712                                         else
 713                                         {
 714                                                 MOD_RESULT = 0;
 715                                                 FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'v', parameters[param], false, 1));
 716                                                 if (!MOD_RESULT)
 717                                                 {
 718                                                         r = TakeVoice(user,parameters[param++],chan,status);
 719                                                 }
 720                                                 else param++;
 721                                         }
 722                                         if (r)
 723                                         {
 724                                                 strlcat(outlist,"v",MAXBUF);
 725                                                 strlcpy(outpars[pc++],r,MAXBUF);
 726                                         }
 727                                 break;
 728
 729                                 case 'b':
 730                                         if ((param >= pcnt)) break;
 731                                         r = NULL;
 732                                         if (mdir == 1)
 733                                         {
 734                                                 MOD_RESULT = 0;
 735                                                 FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'b', parameters[param], true, 1));
 736                                                 if (!MOD_RESULT)
 737                                                 {
 738                                                         r = AddBan(user,parameters[param++],chan,status);
 739                                                 }
 740                                                 else param++;
 741                                         }
 742                                         else
 743                                         {
 744                                                 MOD_RESULT = 0;
 745                                                 FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'b', parameters[param], false, 1));
 746                                                 if (!MOD_RESULT)
 747                                                 {
 748                                                         r = TakeBan(user,parameters[param++],chan,status);
 749                                                 }
 750                                                 else param++;
 751                                         }
 752                                         if (r)
 753                                         {
 754                                                 strlcat(outlist,"b",MAXBUF);
 755                                                 strlcpy(outpars[pc++],parameters[param-1],MAXBUF);
 756                                         }
 757                                 break;
 758
 759
 760                                 case 'k':
 761                                         if ((param >= pcnt))
 762                                                 break;
 763
 764                                         if (mdir == 1)
 765                                         {
 766                                                 if (k_set)
 767                                                         break;
 768
 769                                                 if (previously_unset_k)
 770                                                         break;
 771                                                 previously_set_k = true;
 772
 773                                                 if (!*chan->key)
 774                                                 {
 775                                                         MOD_RESULT = 0;
 776                                                         FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'k', parameters[param], true, 1));
 777                                                         if (!MOD_RESULT)
 778                                                         {
 779                                                                 strcat(outlist,"k");
 780                                                                 char key[MAXBUF];
 781                                                                 strlcpy(key,parameters[param++],32);
 782                                                                 strlcpy(outpars[pc++],key,MAXBUF);
 783                                                                 strlcpy(chan->key,key,MAXBUF);
 784                                                                 k_set = true;
 785                                                         }
 786                                                         else param++;
 787                                                 }
 788                                         }
 789                                         else
 790                                         {
 791                                                 /* checks on -k are case sensitive and only accurate to the
 792                                                    first 32 characters */
 793                                                 if (previously_set_k)
 794                                                         break;
 795                                                 previously_unset_k = true;
 796
 797                                                 char key[MAXBUF];
 798                                                 MOD_RESULT = 0;
 799                                                 FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'k', parameters[param], false, 1));
 800                                                 if (!MOD_RESULT)
 801                                                 {
 802                                                         strlcpy(key,parameters[param++],32);
 803                                                         /* only allow -k if correct key given */
 804                                                         if (!strcmp(chan->key,key))
 805                                                         {
 806                                                                 strlcat(outlist,"k",MAXBUF);
 807                                                                 strlcpy(chan->key,"",MAXBUF);
 808                                                                 strlcpy(outpars[pc++],key,MAXBUF);
 809                                                         }
 810                                                 }
 811                                                 else param++;
 812                                         }
 813                                 break;
 814
 815                                 case 'l':
 816                                         if (mdir == 0)
 817                                         {
 818                                                 if (previously_set_l)
 819                                                         break;
 820                                                 previously_unset_l = true;
 821                                                 MOD_RESULT = 0;
 822                                                 FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'l', "", false, 0));
 823                                                 if (!MOD_RESULT)
 824                                                 {
 825                                                         if (chan->limit)
 826                                                         {
 827                                                                 strcat(outlist,"l");
 828                                                                 chan->limit = 0;
 829                                                         }
 830                                                 }
 831                                         }
 832
 833                                         if ((param >= pcnt)) break;
 834                                         if (mdir == 1)
 835                                         {
 836                                                 if (l_set)
 837                                                         break;
 838                                                 if (previously_unset_l)
 839                                                         break;
 840                                                 previously_set_l = true;
 841                                                 bool invalid = false;
 842                                                 for (char* f = parameters[param]; *f; f++)
 843                                                 {
 844                                                         if ((*f < '0') || (*f > '9'))
 845                                                         {
 846                                                                 invalid = true;
 847                                                         }
 848                                                 }
 849                                                 /* If the limit is < 1, or the new limit is the current limit, dont allow */
 850                                                 if ((atoi(parameters[param]) < 1) || ((chan->limit > 0) && (atoi(parameters[param]) == chan->limit)))
 851                                                 {
 852                                                         invalid = true;
 853                                                 }
 854
 855                                                 if (invalid)
 856                                                         break;
 857
 858                                                 MOD_RESULT = 0;
 859                                                 FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'l', parameters[param], true, 1));
 860                                                 if (!MOD_RESULT)
 861                                                 {
 862
 863                                                         chan->limit = atoi(parameters[param]);
 864
 865                                                         // reported by mech: large values cause underflow
 866                                                         if (chan->limit < 0)
 867                                                                 chan->limit = 0x7FFF;
 868                                                 }
 869
 870                                                 if (chan->limit)
 871                                                 {
 872                                                         strlcat(outlist,"l",MAXBUF);
 873                                                         strlcpy(outpars[pc++],parameters[param++],MAXBUF);
 874                                                         l_set = true;
 875                                                 }
 876                                         }
 877                                 break;
 878
 879                                 case 'i':
 880                                         MOD_RESULT = 0;
 881                                         FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'i', "", mdir, 0));
 882                                         if (!MOD_RESULT)
 883                                         {
 884                                                 if (mdir)
 885                                                 {
 886                                                         if (!(chan->binarymodes & CM_INVITEONLY)) strlcat(outlist,"i",MAXBUF);
 887                                                         chan->binarymodes |= CM_INVITEONLY;
 888                                                 }
 889                                                 else
 890                                                 {
 891                                                         if (chan->binarymodes & CM_INVITEONLY) strlcat(outlist,"i",MAXBUF);
 892                                                         chan->binarymodes &= ~CM_INVITEONLY;
 893                                                 }
 894                                         }
 895                                 break;
 896
 897                                 case 't':
 898                                         MOD_RESULT = 0;
 899                                         FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 't', "", mdir, 0));
 900                                         if (!MOD_RESULT)
 901                                         {
 902                                                 if (mdir)
 903                                                 {
 904                                                         if (!(chan->binarymodes & CM_TOPICLOCK)) strlcat(outlist,"t",MAXBUF);
 905                                                         chan->binarymodes |= CM_TOPICLOCK;
 906                                                 }
 907                                                 else
 908                                                 {
 909                                                         if (chan->binarymodes & CM_TOPICLOCK) strlcat(outlist,"t",MAXBUF);
 910                                                         chan->binarymodes &= ~CM_TOPICLOCK;
 911                                                 }
 912                                         }
 913                                 break;
 914
 915                                 case 'n':
 916                                         MOD_RESULT = 0;
 917                                         FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'n', "", mdir, 0));
 918                                         if (!MOD_RESULT)
 919                                         {
 920                                                 if (mdir)
 921                                                 {
 922                                                         if (!(chan->binarymodes & CM_NOEXTERNAL)) strlcat(outlist,"n",MAXBUF);
 923                                                         chan->binarymodes |= CM_NOEXTERNAL;
 924                                                 }
 925                                                 else
 926                                                 {
 927                                                         if (chan->binarymodes & CM_NOEXTERNAL) strlcat(outlist,"n",MAXBUF);
 928                                                         chan->binarymodes &= ~CM_NOEXTERNAL;
 929                                                 }
 930                                         }
 931                                 break;
 932
 933                                 case 'm':
 934                                         MOD_RESULT = 0;
 935                                         FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'm', "", mdir, 0));
 936                                         if (!MOD_RESULT)
 937                                         {
 938                                                 if (mdir)
 939                                                 {
 940                                                         if (!(chan->binarymodes & CM_MODERATED)) strlcat(outlist,"m",MAXBUF);
 941                                                         chan->binarymodes |= CM_MODERATED;
 942                                                 }
 943                                                 else
 944                                                 {
 945                                                         if (chan->binarymodes & CM_MODERATED) strlcat(outlist,"m",MAXBUF);
 946                                                         chan->binarymodes &= ~CM_MODERATED;
 947                                                 }
 948                                         }
 949                                 break;
 950
 951                                 case 's':
 952                                         MOD_RESULT = 0;
 953                                         FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 's', "", mdir, 0));
 954                                         if (!MOD_RESULT)
 955                                         {
 956                                                 if (mdir)
 957                                                 {
 958                                                         if (!(chan->binarymodes & CM_SECRET)) strlcat(outlist,"s",MAXBUF);
 959                                                         chan->binarymodes |= CM_SECRET;
 960                                                         if (chan->binarymodes & CM_PRIVATE)
 961                                                         {
 962                                                                 chan->binarymodes &= ~CM_PRIVATE;
 963                                                                 if (mdir)
 964                                                                 {
 965                                                                         strlcat(outlist,"-p+",MAXBUF);
 966                                                                 }
 967                                                         }
 968                                                 }
 969                                                 else
 970                                                 {
 971                                                         if (chan->binarymodes & CM_SECRET) strlcat(outlist,"s",MAXBUF);
 972                                                         chan->binarymodes &= ~CM_SECRET;
 973                                                 }
 974                                         }
 975                                 break;
 976
 977                                 case 'p':
 978                                         MOD_RESULT = 0;
 979                                         FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'p', "", mdir, 0));
 980                                         if (!MOD_RESULT)
 981                                         {
 982                                                 if (mdir)
 983                                                 {
 984                                                         if (!(chan->binarymodes & CM_PRIVATE)) strlcat(outlist,"p",MAXBUF);
 985                                                         chan->binarymodes |= CM_PRIVATE;
 986                                                         if (chan->binarymodes & CM_SECRET)
 987                                                         {
 988                                                                 chan->binarymodes &= ~CM_SECRET;
 989                                                                 if (mdir)
 990                                                                 {
 991                                                                         strlcat(outlist,"-s+",MAXBUF);
 992                                                                 }
 993                                                         }
 994                                                 }
 995                                                 else
 996                                                 {
 997                                                         if (chan->binarymodes & CM_PRIVATE) strlcat(outlist,"p",MAXBUF);
 998                                                         chan->binarymodes &= ~CM_PRIVATE;
 999                                                 }
1000                                         }
1001                                 break;
1002
1003                                 default:
1004                                         log(DEBUG,"Preprocessing custom mode %c: modelist: %s",*modechar,chan->custom_modes);
1005                                         string_list p;
1006                                         p.clear();
1007                                         if (((!strchr(chan->custom_modes,*modechar)) && (!mdir)) || ((strchr(chan->custom_modes,*modechar)) && (mdir)))
1008                                         {
1009                                                 if (!ModeIsListMode(*modechar,MT_CHANNEL))
1010                                                 {
1011                                                         log(DEBUG,"Mode %c isnt set on %s but trying to remove!",*modechar,chan->name);
1012                                                         break;
1013                                                 }
1014                                         }
1015                                         if (ModeDefined(*modechar,MT_CHANNEL))
1016                                         {
1017                                                 log(DEBUG,"A module has claimed this mode");
1018                                                 if (param<pcnt)
1019                                                 {
1020                                                         if ((ModeDefinedOn(*modechar,MT_CHANNEL)>0) && (mdir))
1021                                                         {
1022                                                                 p.push_back(parameters[param]);
1023                                                         }
1024                                                         if ((ModeDefinedOff(*modechar,MT_CHANNEL)>0) && (!mdir))
1025                                                         {
1026                                                                 p.push_back(parameters[param]);
1027                                                         }
1028                                                 }
1029                                                 bool handled = false;
1030                                                 if (param>=pcnt)
1031                                                 {
1032                                                         // we're supposed to have a parameter, but none was given... so dont handle the mode.
1033                                                         if (((ModeDefinedOn(*modechar,MT_CHANNEL)>0) && (mdir)) || ((ModeDefinedOff(*modechar,MT_CHANNEL)>0) && (!mdir)))
1034                                                         {
1035                                                                 log(DEBUG,"Not enough parameters for module-mode %c",*modechar);
1036                                                                 handled = true;
1037                                                                 param++;
1038                                                         }
1039                                                 }
1040
1041                                                 // BIG ASS IDIOTIC CODER WARNING!
1042                                                 // Using OnRawMode on another modules mode's behavour
1043                                                 // will confuse the crap out of admins! just because you CAN
1044                                                 // do it, doesnt mean you SHOULD!
1045                                                 MOD_RESULT = 0;
1046                                                 std::string para = "";
1047                                                 if (p.size())
1048                                                         para = p[0];
1049                                                 FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, *modechar, para, mdir, pcnt));
1050                                                 if (!MOD_RESULT)
1051                                                 {
1052                                                         for (int i = 0; i <= MODCOUNT; i++)
1053                                                         {
1054                                                                 if (!handled)
1055                                                                 {
1056                                                                         int t = modules[i]->OnExtendedMode(user,chan,*modechar,MT_CHANNEL,mdir,p);
1057                                                                         if (t != 0)
1058                                                                         {
1059                                                                                 log(DEBUG,"OnExtendedMode returned nonzero for a module");
1060                                                                                 char app[] = {*modechar, 0};
1061                                                                                 if (ModeIsListMode(*modechar,MT_CHANNEL))
1062                                                                                 {
1063                                                                                         if (t == -1)
1064                                                                                         {
1065                                                                                                 //pc++;
1066                                                                                                 param++;
1067                                                                                         }
1068                                                                                         else
1069                                                                                         {
1070                                                                                                 if (ptr>0)
1071                                                                                                 {
1072                                                                                                         strlcat(outlist, app,MAXBUF);
1073                                                                                                 }
1074                                                                                                 strlcpy(outpars[pc++],parameters[param++],MAXBUF);
1075                                                                                         }
1076                                                                                 }
1077                                                                                 else
1078                                                                                 {
1079                                                                                         if (ptr>0)
1080                                                                                         {
1081                                                                                                 if ((modelist[ptr-1] == '+') || (modelist[ptr-1] == '-'))
1082                                                                                                 {
1083                                                                                                         strlcat(outlist, app,MAXBUF);
1084                                                                                                 }
1085                                                                                                 else if (!strchr(outlist,*modechar))
1086                                                                                                 {
1087                                                                                                         strlcat(outlist, app,MAXBUF);
1088                                                                                                 }
1089                                                                                         }
1090                                                                                         chan->SetCustomMode(*modechar,mdir);
1091                                                                                         // include parameters in output if mode has them
1092                                                                                         if ((ModeDefinedOn(*modechar,MT_CHANNEL)>0) && (mdir))
1093                                                                                         {
1094                                                                                                 chan->SetCustomModeParam(modelist[ptr],parameters[param],mdir);
1095                                                                                                 strlcpy(outpars[pc++],parameters[param++],MAXBUF);
1096                                                                                         }
1097                                                                                 }
1098                                                                                 // break, because only one module can handle the mode.
1099                                                                                 handled = true;
1100                                                                         }
1101                                                                 }
1102                                                         }
1103                                                 }
1104                                         }
1105                                         else
1106                                         {
1107                                                 WriteServ(user->fd,"472 %s %c :is unknown mode char to me",user->nick,*modechar);
1108                                         }
1109                                 break;
1110
1111                         }
1112                 }
1113         }
1114
1115         /* this ensures only the *valid* modes are sent out onto the network */
1116         int xt = strlen(outlist)-1;
1117         while ((outlist[xt] == '-') || (outlist[xt] == '+'))
1118         {
1119                 outlist[xt] = '\0';
1120                 xt = strlen(outlist)-1;
1121         }
1122         if (outlist[0])
1123         {
1124                 strlcpy(outstr,outlist,MAXBUF);
1125                 for (ptr = 0; ptr < pc; ptr++)
1126                 {
1127                         strlcat(outstr," ",MAXBUF);
1128                         strlcat(outstr,outpars[ptr],MAXBUF);
1129                 }
1130                 if (local)
1131                 {
1132                         log(DEBUG,"Local mode change");
1133                         WriteChannelLocal(chan, user, "MODE %s %s",chan->name,outstr);
1134                         FOREACH_MOD(I_OnMode,OnMode(user, chan, TYPE_CHANNEL, outstr));
1135                 }
1136                 else
1137                 {
1138                         if (servermode)
1139                         {
1140                                 if (!silent)
1141                                 {
1142                                         WriteChannelWithServ(Config->ServerName,chan,"MODE %s %s",chan->name,outstr);
1143                                 }
1144
1145                         }
1146                         else
1147                         {
1148                                 if (!silent)
1149                                 {
1150                                         WriteChannel(chan,user,"MODE %s %s",chan->name,outstr);
1151                                         FOREACH_MOD(I_OnMode,OnMode(user, chan, TYPE_CHANNEL, outstr));
1152                                 }
1153                         }
1154                 }
1155         }
1156 }
1157
1158 // based on sourcemodes, return true or false to determine if umode is a valid mode a user may set on themselves or others.
1159
1160 bool ModeParser::AllowedUmode(char umode, char* sourcemodes,bool adding,bool serveroverride)
1161 {
1162         log(DEBUG,"Allowed_umode: %c %s",umode,sourcemodes);
1163         // Servers can +o and -o arbitrarily
1164         if ((serveroverride == true) && (umode == 'o'))
1165         {
1166                 return true;
1167         }
1168         // RFC1459 specified modes
1169         if ((umode == 'w') || (umode == 's') || (umode == 'i'))
1170         {
1171                 log(DEBUG,"umode %c allowed by RFC1459 scemantics",umode);
1172                 return true;
1173         }
1174
1175         // user may not +o themselves or others, but an oper may de-oper other opers or themselves
1176         if ((strchr(sourcemodes,'o')) && (!adding))
1177         {
1178                 log(DEBUG,"umode %c allowed by RFC1459 scemantics",umode);
1179                 return true;
1180         }
1181         else if (umode == 'o')
1182         {
1183                 log(DEBUG,"umode %c allowed by RFC1459 scemantics",umode);
1184                 return false;
1185         }
1186
1187         // process any module-defined modes that need oper
1188         if ((ModeDefinedOper(umode,MT_CLIENT)) && (strchr(sourcemodes,'o')))
1189         {
1190                 log(DEBUG,"umode %c allowed by module handler (oper only mode)",umode);
1191                 return true;
1192         }
1193         else
1194         if (ModeDefined(umode,MT_CLIENT))
1195         {
1196                 // process any module-defined modes that don't need oper
1197                 log(DEBUG,"umode %c allowed by module handler (non-oper mode)",umode);
1198                 if ((ModeDefinedOper(umode,MT_CLIENT)) && (!strchr(sourcemodes,'o')))
1199                 {
1200                         // no, this mode needs oper, and this user 'aint got what it takes!
1201                         return false;
1202                 }
1203                 return true;
1204         }
1205
1206         // anything else - return false.
1207         log(DEBUG,"umode %c not known by any ruleset",umode);
1208         return false;
1209 }
1210
1211 bool ModeParser::ProcessModuleUmode(char umode, userrec* source, void* dest, bool adding)
1212 {
1213         userrec* s2;
1214         bool faked = false;
1215         if (!source)
1216         {
1217                 s2 = new userrec;
1218                 strlcpy(s2->nick,Config->ServerName,NICKMAX-1);
1219                 strlcpy(s2->modes,"o",52);
1220                 s2->fd = -1;
1221                 source = s2;
1222                 faked = true;
1223         }
1224         string_list p;
1225         p.clear();
1226         if (ModeDefined(umode,MT_CLIENT))
1227         {
1228                 for (int i = 0; i <= MODCOUNT; i++)
1229                 {
1230                         if (modules[i]->OnExtendedMode(source,(void*)dest,umode,MT_CLIENT,adding,p))
1231                         {
1232                                 log(DEBUG,"Module %s claims umode %c",Config->module_names[i].c_str(),umode);
1233                                 return true;
1234                         }
1235                 }
1236                 log(DEBUG,"No module claims umode %c",umode);
1237                 if (faked)
1238                 {
1239                         delete s2;
1240                         source = NULL;
1241                 }
1242                 return false;
1243         }
1244         else
1245         {
1246                 if (faked)
1247                 {
1248                         delete s2;
1249                         source = NULL;
1250                 }
1251                 return false;
1252         }
1253 }
1254
1255 void cmd_mode::Handle (char **parameters, int pcnt, userrec *user)
1256 {
1257         chanrec* Ptr;
1258         userrec* dest;
1259         int can_change;
1260         int direction = 1;
1261         char outpars[MAXBUF];
1262
1263         dest = Find(parameters[0]);
1264
1265         if (!user)
1266         {
1267                 return;
1268         }
1269
1270         if ((dest) && (pcnt == 1))
1271         {
1272                 WriteServ(user->fd,"221 %s :+%s",dest->nick,dest->modes);
1273                 return;
1274         }
1275
1276         if ((dest) && (pcnt > 1))
1277         {
1278                 std::string tidied = ServerInstance->ModeGrok->CompressModes(parameters[1],false);
1279                 parameters[1] = (char*)tidied.c_str();
1280
1281                 char dmodes[MAXBUF];
1282                 strlcpy(dmodes,dest->modes,52);
1283                 log(DEBUG,"pulled up dest user modes: %s",dmodes);
1284
1285                 can_change = 0;
1286                 if (user != dest)
1287                 {
1288                         if ((strchr(user->modes,'o')) || (is_uline(user->server)))
1289                         {
1290                                 can_change = 1;
1291                         }
1292                 }
1293                 else
1294                 {
1295                         can_change = 1;
1296                 }
1297                 if (!can_change)
1298                 {
1299                         WriteServ(user->fd,"482 %s :Can't change mode for other users",user->nick);
1300                         return;
1301                 }
1302
1303                 outpars[0] = '+';
1304                 outpars[1] = 0;
1305                 direction = 1;
1306
1307                 if ((parameters[1][0] != '+') && (parameters[1][0] != '-'))
1308                         return;
1309
1310                 for (unsigned int i = 0; i < strlen(parameters[1]); i++)
1311                 {
1312                         if (parameters[1][i] == ' ')
1313                                 continue;
1314                         if (parameters[1][i] == '+')
1315                         {
1316                                 if (direction != 1)
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 = 1;
1329                         }
1330                         else
1331                         if (parameters[1][i] == '-')
1332                         {
1333                                 if (direction != 0)
1334                                 {
1335                                         int t = strlen(outpars)-1;
1336                                         if ((outpars[t] == '+') || (outpars[t] == '-'))
1337                                         {
1338                                                 outpars[t] = '-';
1339                                         }
1340                                         else
1341                                         {
1342                                                 strcat(outpars,"-");
1343                                         }
1344                                 }
1345                                 direction = 0;
1346                         }
1347                         else
1348                         {
1349                                 can_change = 0;
1350                                 if (strchr(user->modes,'o'))
1351                                 {
1352                                         can_change = 1;
1353                                 }
1354                                 else
1355                                 {
1356                                         if ((parameters[1][i] == 'i') || (parameters[1][i] == 'w') || (parameters[1][i] == 's') || (ServerInstance->ModeGrok->AllowedUmode(parameters[1][i],user->modes,direction,false)))
1357                                         {
1358                                                 can_change = 1;
1359                                         }
1360                                 }
1361                                 if (can_change)
1362                                 {
1363                                         if (direction == 1)
1364                                         {
1365                                                 if ((!strchr(dmodes,parameters[1][i])) && (ServerInstance->ModeGrok->AllowedUmode(parameters[1][i],user->modes,true,false)))
1366                                                 {
1367                                                         char umode = parameters[1][i];
1368                                                         if ((ServerInstance->ModeGrok->ProcessModuleUmode(umode, user, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
1369                                                         {
1370                                                                 int q = strlen(dmodes);
1371                                                                 int r = strlen(outpars);
1372                                                                 dmodes[q+1]='\0';
1373                                                                 dmodes[q] = parameters[1][i];
1374                                                                 outpars[r+1]='\0';
1375                                                                 outpars[r] = parameters[1][i];
1376                                                                 if (parameters[1][i] == 'o')
1377                                                                 {
1378                                                                         FOREACH_MOD(I_OnGlobalOper,OnGlobalOper(dest));
1379                                                                 }
1380                                                         }
1381                                                 }
1382                                         }
1383                                         else
1384                                         {
1385                                                 if ((ServerInstance->ModeGrok->AllowedUmode(parameters[1][i],user->modes,false,false)) && (strchr(dmodes,parameters[1][i])))
1386                                                 {
1387                                                         char umode = parameters[1][i];
1388                                                         if ((ServerInstance->ModeGrok->ProcessModuleUmode(umode, user, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
1389                                                         {
1390                                                                 unsigned int q = 0;
1391                                                                 char temp[MAXBUF];
1392                                                                 char moo[MAXBUF];
1393
1394                                                                 unsigned int r = strlen(outpars);
1395                                                                 outpars[r+1]='\0';
1396                                                                 outpars[r] = parameters[1][i];
1397
1398                                                                 *temp = 0;
1399                                                                 for (q = 0; q < strlen(dmodes); q++)
1400                                                                 {
1401                                                                         if (dmodes[q] != parameters[1][i])
1402                                                                         {
1403                                                                                 moo[0] = dmodes[q];
1404                                                                                 moo[1] = '\0';
1405                                                                                 strlcat(temp,moo,MAXBUF);
1406                                                                         }
1407                                                                 }
1408                                                                 strlcpy(dmodes,temp,52);
1409
1410                                                                 if (umode == 'o')
1411                                                                 {
1412                                                                         *dest->oper = 0;
1413                                                                         DeleteOper(dest);
1414                                                                 }
1415                                                         }
1416                                                 }
1417                                         }
1418                                 }
1419                         }
1420                 }
1421                 if (outpars[0])
1422                 {
1423                         char b[MAXBUF];
1424                         strlcpy(b,"",MAXBUF);
1425                         unsigned int z = 0;
1426                         unsigned int i = 0;
1427                         while (i < strlen (outpars))
1428                         {
1429                                 b[z++] = outpars[i++];
1430                                 b[z] = '\0';
1431                                 if (i<strlen(outpars)-1)
1432                                 {
1433                                         if (((outpars[i] == '-') || (outpars[i] == '+')) && ((outpars[i+1] == '-') || (outpars[i+1] == '+')))
1434                                         {
1435                                                 // someones playing silly buggers and trying
1436                                                 // to put a +- or -+ into the line...
1437                                                 i++;
1438                                         }
1439                                 }
1440                                 if (i == strlen(outpars)-1)
1441                                 {
1442                                         if ((outpars[i] == '-') || (outpars[i] == '+'))
1443                                         {
1444                                                 i++;
1445                                         }
1446                                 }
1447                         }
1448
1449                         z = strlen(b)-1;
1450                         if ((b[z] == '-') || (b[z] == '+'))
1451                                 b[z] = '\0';
1452
1453                         if ((!b[0]) || (!strcmp(b,"+")) || (!strcmp(b,"-")))
1454                                 return;
1455
1456                         if (strcmp(b,""))
1457                         {
1458                                 WriteTo(user, dest, "MODE %s :%s", dest->nick, b);
1459                                 FOREACH_MOD(I_OnMode,OnMode(user, dest, TYPE_USER, b));
1460                         }
1461
1462                         if (strlen(dmodes)>MAXMODES)
1463                         {
1464                                 dmodes[MAXMODES-1] = '\0';
1465                         }
1466                         log(DEBUG,"Stripped mode line");
1467                         log(DEBUG,"Line dest is now %s",dmodes);
1468                         strlcpy(dest->modes,dmodes,52);
1469
1470                 }
1471
1472                 return;
1473         }
1474
1475         Ptr = FindChan(parameters[0]);
1476         if (Ptr)
1477         {
1478                 if (pcnt == 1)
1479                 {
1480                         /* just /modes #channel */
1481                         WriteServ(user->fd,"324 %s %s +%s",user->nick, Ptr->name, chanmodes(Ptr,has_channel(user,Ptr)));
1482                         WriteServ(user->fd,"329 %s %s %d", user->nick, Ptr->name, Ptr->created);
1483                         return;
1484                 }
1485                 else
1486                 if (pcnt == 2)
1487                 {
1488                         char* mode = parameters[1];
1489                         if (*mode == '+')
1490                                 mode++;
1491                         int MOD_RESULT = 0;
1492                         FOREACH_RESULT(I_OnRawMode,OnRawMode(user, Ptr, *mode, "", false, 0));
1493                         if (!MOD_RESULT)
1494                         {
1495                                 if (*mode == 'b')
1496                                 {
1497
1498                                         for (BanList::iterator i = Ptr->bans.begin(); i != Ptr->bans.end(); i++)
1499                                         {
1500                                                 WriteServ(user->fd,"367 %s %s %s %s %d",user->nick, Ptr->name, i->data, i->set_by, i->set_time);
1501                                         }
1502                                         WriteServ(user->fd,"368 %s %s :End of channel ban list",user->nick, Ptr->name);
1503                                         return;
1504                                 }
1505                                 if ((ModeDefined(*mode,MT_CHANNEL)) && (ModeIsListMode(*mode,MT_CHANNEL)))
1506                                 {
1507                                         // list of items for an extmode
1508                                         log(DEBUG,"Calling OnSendList for all modules, list output for mode %c",*mode);
1509                                         FOREACH_MOD(I_OnSendList,OnSendList(user,Ptr,*mode));
1510                                         return;
1511                                 }
1512                         }
1513                 }
1514
1515                 if (((Ptr) && (!has_channel(user,Ptr))) && (!is_uline(user->server)) && (IS_LOCAL(user)))
1516                 {
1517                         WriteServ(user->fd,"442 %s %s :You're not on that channel!",user->nick, Ptr->name);
1518                         return;
1519                 }
1520
1521                 if (Ptr)
1522                 {
1523                         int MOD_RESULT = 0;
1524                         FOREACH_RESULT(I_OnAccessCheck,OnAccessCheck(user,NULL,Ptr,AC_GENERAL_MODE));
1525
1526                         if (MOD_RESULT == ACR_DENY)
1527                                 return;
1528                         if (MOD_RESULT == ACR_DEFAULT)
1529                         {
1530                                 if ((cstatus(user,Ptr) < STATUS_HOP) && (IS_LOCAL(user)))
1531                                 {
1532                                         WriteServ(user->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel",user->nick, Ptr->name);
1533                                         return;
1534                                 }
1535                         }
1536
1537                         ServerInstance->ModeGrok->ProcessModes(parameters,user,Ptr,cstatus(user,Ptr),pcnt,false,false,false);
1538                 }
1539         }
1540         else
1541         {
1542                 WriteServ(user->fd,"401 %s %s :No such nick/channel",user->nick, parameters[0]);
1543         }
1544 }
1545
1546
1547
1548
1549 void ModeParser::ServerMode(char **parameters, int pcnt, userrec *user)
1550 {
1551         chanrec* Ptr;
1552         userrec* dest;
1553         int can_change;
1554         int direction = 1;
1555         char outpars[MAXBUF];
1556
1557         dest = Find(parameters[0]);
1558
1559         // fix: ChroNiCk found this - we cant use this as debug if its null!
1560         if (dest)
1561         {
1562                 log(DEBUG,"server_mode on %s",dest->nick);
1563         }
1564
1565         if ((dest) && (pcnt > 1))
1566         {
1567                 std::string tidied = ServerInstance->ModeGrok->CompressModes(parameters[1],false);
1568                 parameters[1] = (char*)tidied.c_str();
1569
1570                 char dmodes[MAXBUF];
1571                 strlcpy(dmodes,dest->modes,52);
1572
1573                 outpars[0] = '+';
1574                 outpars[1] = 0;
1575                 direction = 1;
1576
1577                 if ((parameters[1][0] != '+') && (parameters[1][0] != '-'))
1578                         return;
1579
1580                 for (unsigned int i = 0; i < strlen(parameters[1]); i++)
1581                 {
1582                         if (parameters[1][i] == ' ')
1583                                 continue;
1584                         if (parameters[1][i] == '+')
1585                         {
1586                                 if (direction != 1)
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 = 1;
1599                         }
1600                         else
1601                         if (parameters[1][i] == '-')
1602                         {
1603                                 if (direction != 0)
1604                                 {
1605                                         int t = strlen(outpars)-1;
1606                                         if ((outpars[t] == '+') || (outpars[t] == '-'))
1607                                         {
1608                                                 outpars[t] = '-';
1609                                         }
1610                                         else
1611                                         {
1612                                                 strcat(outpars,"-");
1613                                         }
1614                                 }
1615                                 direction = 0;
1616                         }
1617                         else
1618                         {
1619                                 log(DEBUG,"begin mode processing entry");
1620                                 can_change = 1;
1621                                 if (can_change)
1622                                 {
1623                                         if (direction == 1)
1624                                         {
1625                                                 log(DEBUG,"umode %c being added",parameters[1][i]);
1626                                                 if ((!strchr(dmodes,parameters[1][i])) && (ServerInstance->ModeGrok->AllowedUmode(parameters[1][i],user->modes,true,true)))
1627                                                 {
1628                                                         char umode = parameters[1][i];
1629                                                         log(DEBUG,"umode %c is an allowed umode",umode);
1630                                                         if ((ServerInstance->ModeGrok->ProcessModuleUmode(umode, user, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
1631                                                         {
1632                                                                 int v1 = strlen(dmodes);
1633                                                                 int v2 = strlen(outpars);
1634                                                                 dmodes[v1+1]='\0';
1635                                                                 dmodes[v1] = parameters[1][i];
1636                                                                 outpars[v2+1]='\0';
1637                                                                 outpars[v2] = parameters[1][i];
1638                                                         }
1639                                                 }
1640                                         }
1641                                         else
1642                                         {
1643                                                 // can only remove a mode they already have
1644                                                 log(DEBUG,"umode %c being removed",parameters[1][i]);
1645                                                 if ((ServerInstance->ModeGrok->AllowedUmode(parameters[1][i],user->modes,false,true)) && (strchr(dmodes,parameters[1][i])))
1646                                                 {
1647                                                         char umode = parameters[1][i];
1648                                                         log(DEBUG,"umode %c is an allowed umode",umode);
1649                                                         if ((ServerInstance->ModeGrok->ProcessModuleUmode(umode, user, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
1650                                                         {
1651                                                                 unsigned int q = 0;
1652                                                                 char temp[MAXBUF];
1653                                                                 char moo[MAXBUF];
1654
1655                                                                 unsigned int v1 = strlen(outpars);
1656                                                                 outpars[v1+1]='\0';
1657                                                                 outpars[v1] = parameters[1][i];
1658                                                                 *temp = 0;
1659                                                                 for (q = 0; q < strlen(dmodes); q++)
1660                                                                 {
1661                                                                         if (dmodes[q] != parameters[1][i])
1662                                                                         {
1663                                                                                 moo[0] = dmodes[q];
1664                                                                                 moo[1] = '\0';
1665                                                                                 strlcat(temp,moo,MAXBUF);
1666                                                                         }
1667                                                                 }
1668                                                                 strlcpy(dmodes,temp,52);
1669                                                         }
1670                                                 }
1671                                         }
1672                                 }
1673                         }
1674                 }
1675                 if (outpars[0])
1676                 {
1677                         char b[MAXBUF];
1678                         strlcpy(b,"",MAXBUF);
1679                         unsigned int z = 0;
1680                         unsigned int i = 0;
1681                         while (i < strlen (outpars))
1682                         {
1683                                 b[z++] = outpars[i++];
1684                                 b[z] = '\0';
1685                                 if (i<strlen(outpars)-1)
1686                                 {
1687                                         if (((outpars[i] == '-') || (outpars[i] == '+')) && ((outpars[i+1] == '-') || (outpars[i+1] == '+')))
1688                                         {
1689                                                 // someones playing silly buggers and trying
1690                                                 // to put a +- or -+ into the line...
1691                                                 i++;
1692                                         }
1693                                 }
1694                                 if (i == strlen(outpars)-1)
1695                                 {
1696                                         if ((outpars[i] == '-') || (outpars[i] == '+'))
1697                                         {
1698                                                 i++;
1699                                         }
1700                                 }
1701                         }
1702
1703                         z = strlen(b)-1;
1704                         if ((b[z] == '-') || (b[z] == '+'))
1705                                 b[z] = '\0';
1706
1707                         if ((!b[0]) || (!strcmp(b,"+")) || (!strcmp(b,"-")))
1708                                 return;
1709
1710                         if (strcmp(b,""))
1711                         {
1712                                 WriteTo(user, dest, "MODE %s :%s", dest->nick, b);
1713                                 FOREACH_MOD(I_OnMode,OnMode(user, dest, TYPE_USER, b));
1714                         }
1715
1716                         if (strlen(dmodes)>MAXMODES)
1717                         {
1718                                 dmodes[MAXMODES-1] = '\0';
1719                         }
1720                         log(DEBUG,"Stripped mode line");
1721                         log(DEBUG,"Line dest is now %s",dmodes);
1722                         strlcpy(dest->modes,dmodes,MAXMODES);
1723
1724                 }
1725
1726                 return;
1727         }
1728
1729         Ptr = FindChan(parameters[0]);
1730         if (Ptr)
1731         {
1732                 ServerInstance->ModeGrok->ProcessModes(parameters,user,Ptr,STATUS_OP,pcnt,true,false,false);
1733         }
1734         else
1735         {
1736                 WriteServ(user->fd,"401 %s %s :No such nick/channel",user->nick, parameters[0]);
1737         }
1738 }