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);
 457         }
 458         else
 459         {
 460                 strlcpy(b.set_by,Config->ServerName,NICKMAX);
 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                 {
 593                         switch (*modechar)
 594                         {
 595                                 case '-':
 596                                         if (mdir != 0)
 597                                         {
 598                                                 int t = strlen(outlist)-1;
 599                                                 if ((outlist[t] == '+') || (outlist[t] == '-'))
 600                                                 {
 601                                                         outlist[t] = '-';
 602                                                 }
 603                                                 else
 604                                                 {
 605                                                         strcat(outlist,"-");
 606                                                 }
 607                                         }
 608                                         mdir = 0;
 609
 610                                 break;
 611
 612                                 case '+':
 613                                         if (mdir != 1)
 614                                         {
 615                                                 int t = strlen(outlist)-1;
 616                                                 if ((outlist[t] == '+') || (outlist[t] == '-'))
 617                                                 {
 618                                                         outlist[t] = '+';
 619                                                 }
 620                                                 else
 621                                                 {
 622                                                         strcat(outlist,"+");
 623                                                 }
 624                                         }
 625                                         mdir = 1;
 626                                 break;
 627
 628                                 case 'o':
 629                                         log(DEBUG,"Ops");
 630                                         if ((param >= pcnt)) break;
 631                                         log(DEBUG,"Enough parameters left");
 632                                         if (mdir == 1)
 633                                         {
 634                                                 MOD_RESULT = 0;
 635                                                 FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'o', parameters[param], true, 1));
 636                                                 if (!MOD_RESULT)
 637                                                 {
 638                                                         log(DEBUG,"calling GiveOps");
 639                                                         r = GiveOps(user,parameters[param++],chan,status);
 640                                                 }
 641                                                 else param++;
 642                                         }
 643                                         else
 644                                         {
 645                                                 MOD_RESULT = 0;
 646                                                 FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'o', parameters[param], false, 1));
 647                                                 if (!MOD_RESULT)
 648                                                 {
 649                                                         log(DEBUG,"calling TakeOps");
 650                                                         r = TakeOps(user,parameters[param++],chan,status);
 651                                                 }
 652                                                 else param++;
 653                                         }
 654                                         if (r)
 655                                         {
 656                                                 strlcat(outlist,"o",MAXBUF);
 657                                                 strlcpy(outpars[pc++],r,MAXBUF);
 658                                         }
 659                                 break;
 660
 661                                 case 'h':
 662                                         if (((param >= pcnt)) || (!Config->AllowHalfop)) break;
 663                                         if (mdir == 1)
 664                                         {
 665                                                 MOD_RESULT = 0;
 666                                                 FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'h', parameters[param], true, 1));
 667                                                 if (!MOD_RESULT)
 668                                                 {
 669                                                         r = GiveHops(user,parameters[param++],chan,status);
 670                                                 }
 671                                                 else param++;
 672                                         }
 673                                         else
 674                                         {
 675                                                 MOD_RESULT = 0;
 676                                                 FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'h', parameters[param], false, 1));
 677                                                 if (!MOD_RESULT)
 678                                                 {
 679                                                         r = TakeHops(user,parameters[param++],chan,status);
 680                                                 }
 681                                                 else param++;
 682                                         }
 683                                         if (r)
 684                                         {
 685                                                 strlcat(outlist,"h",MAXBUF);
 686                                                 strlcpy(outpars[pc++],r,MAXBUF);
 687                                         }
 688                                 break;
 689
 690
 691                                 case 'v':
 692                                         if ((param >= pcnt)) break;
 693                                         if (mdir == 1)
 694                                         {
 695                                                 MOD_RESULT = 0;
 696                                                 FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'v', parameters[param], true, 1));
 697                                                 if (!MOD_RESULT)
 698                                                 {
 699                                                         r = GiveVoice(user,parameters[param++],chan,status);
 700                                                 }
 701                                                 else param++;
 702                                         }
 703                                         else
 704                                         {
 705                                                 MOD_RESULT = 0;
 706                                                 FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'v', parameters[param], false, 1));
 707                                                 if (!MOD_RESULT)
 708                                                 {
 709                                                         r = TakeVoice(user,parameters[param++],chan,status);
 710                                                 }
 711                                                 else param++;
 712                                         }
 713                                         if (r)
 714                                         {
 715                                                 strlcat(outlist,"v",MAXBUF);
 716                                                 strlcpy(outpars[pc++],r,MAXBUF);
 717                                         }
 718                                 break;
 719
 720                                 case 'b':
 721                                         if ((param >= pcnt)) break;
 722                                         if (mdir == 1)
 723                                         {
 724                                                 MOD_RESULT = 0;
 725                                                 FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'b', parameters[param], true, 1));
 726                                                 if (!MOD_RESULT)
 727                                                 {
 728                                                         r = AddBan(user,parameters[param++],chan,status);
 729                                                 }
 730                                                 else param++;
 731                                         }
 732                                         else
 733                                         {
 734                                                 MOD_RESULT = 0;
 735                                                 FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'b', parameters[param], false, 1));
 736                                                 if (!MOD_RESULT)
 737                                                 {
 738                                                         r = TakeBan(user,parameters[param++],chan,status);
 739                                                 }
 740                                                 else param++;
 741                                         }
 742                                         if (r)
 743                                         {
 744                                                 strlcat(outlist,"b",MAXBUF);
 745                                                 strlcpy(outpars[pc++],parameters[param-1],MAXBUF);
 746                                         }
 747                                 break;
 748
 749
 750                                 case 'k':
 751                                         if ((param >= pcnt))
 752                                                 break;
 753
 754                                         if (mdir == 1)
 755                                         {
 756                                                 if (k_set)
 757                                                         break;
 758
 759                                                 if (previously_unset_k)
 760                                                         break;
 761                                                 previously_set_k = true;
 762
 763                                                 if (!*chan->key)
 764                                                 {
 765                                                         MOD_RESULT = 0;
 766                                                         FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'k', parameters[param], true, 1));
 767                                                         if (!MOD_RESULT)
 768                                                         {
 769                                                                 strcat(outlist,"k");
 770                                                                 char key[MAXBUF];
 771                                                                 strlcpy(key,parameters[param++],32);
 772                                                                 strlcpy(outpars[pc++],key,MAXBUF);
 773                                                                 strlcpy(chan->key,key,MAXBUF);
 774                                                                 k_set = true;
 775                                                         }
 776                                                         else param++;
 777                                                 }
 778                                         }
 779                                         else
 780                                         {
 781                                                 /* checks on -k are case sensitive and only accurate to the
 782                                                    first 32 characters */
 783                                                 if (previously_set_k)
 784                                                         break;
 785                                                 previously_unset_k = true;
 786
 787                                                 char key[MAXBUF];
 788                                                 MOD_RESULT = 0;
 789                                                 FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'k', parameters[param], false, 1));
 790                                                 if (!MOD_RESULT)
 791                                                 {
 792                                                         strlcpy(key,parameters[param++],32);
 793                                                         /* only allow -k if correct key given */
 794                                                         if (!strcmp(chan->key,key))
 795                                                         {
 796                                                                 strlcat(outlist,"k",MAXBUF);
 797                                                                 strlcpy(chan->key,"",MAXBUF);
 798                                                                 strlcpy(outpars[pc++],key,MAXBUF);
 799                                                         }
 800                                                 }
 801                                                 else param++;
 802                                         }
 803                                 break;
 804
 805                                 case 'l':
 806                                         if (mdir == 0)
 807                                         {
 808                                                 if (previously_set_l)
 809                                                         break;
 810                                                 previously_unset_l = true;
 811                                                 MOD_RESULT = 0;
 812                                                 FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'l', "", false, 0));
 813                                                 if (!MOD_RESULT)
 814                                                 {
 815                                                         if (chan->limit)
 816                                                         {
 817                                                                 strcat(outlist,"l");
 818                                                                 chan->limit = 0;
 819                                                         }
 820                                                 }
 821                                         }
 822
 823                                         if ((param >= pcnt)) break;
 824                                         if (mdir == 1)
 825                                         {
 826                                                 if (l_set)
 827                                                         break;
 828                                                 if (previously_unset_l)
 829                                                         break;
 830                                                 previously_set_l = true;
 831                                                 bool invalid = false;
 832                                                 for (char* f = parameters[param]; *f; f++)
 833                                                 {
 834                                                         if ((*f < '0') || (*f > '9'))
 835                                                         {
 836                                                                 invalid = true;
 837                                                         }
 838                                                 }
 839                                                 /* If the limit is < 1, or the new limit is the current limit, dont allow */
 840                                                 if ((atoi(parameters[param]) < 1) || ((chan->limit > 0) && (atoi(parameters[param]) == chan->limit)))
 841                                                 {
 842                                                         invalid = true;
 843                                                 }
 844
 845                                                 if (invalid)
 846                                                         break;
 847
 848                                                 MOD_RESULT = 0;
 849                                                 FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'l', parameters[param], true, 1));
 850                                                 if (!MOD_RESULT)
 851                                                 {
 852
 853                                                         chan->limit = atoi(parameters[param]);
 854
 855                                                         // reported by mech: large values cause underflow
 856                                                         if (chan->limit < 0)
 857                                                                 chan->limit = 0x7FFF;
 858                                                 }
 859
 860                                                 if (chan->limit)
 861                                                 {
 862                                                         strlcat(outlist,"l",MAXBUF);
 863                                                         strlcpy(outpars[pc++],parameters[param++],MAXBUF);
 864                                                         l_set = true;
 865                                                 }
 866                                         }
 867                                 break;
 868
 869                                 case 'i':
 870                                         MOD_RESULT = 0;
 871                                         FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'i', "", mdir, 0));
 872                                         if (!MOD_RESULT)
 873                                         {
 874                                                 if (mdir)
 875                                                 {
 876                                                         if (!(chan->binarymodes & CM_INVITEONLY)) strlcat(outlist,"i",MAXBUF);
 877                                                         chan->binarymodes |= CM_INVITEONLY;
 878                                                 }
 879                                                 else
 880                                                 {
 881                                                         if (chan->binarymodes & CM_INVITEONLY) strlcat(outlist,"i",MAXBUF);
 882                                                         chan->binarymodes &= ~CM_INVITEONLY;
 883                                                 }
 884                                         }
 885                                 break;
 886
 887                                 case 't':
 888                                         MOD_RESULT = 0;
 889                                         FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 't', "", mdir, 0));
 890                                         if (!MOD_RESULT)
 891                                         {
 892                                                 if (mdir)
 893                                                 {
 894                                                         if (!(chan->binarymodes & CM_TOPICLOCK)) strlcat(outlist,"t",MAXBUF);
 895                                                         chan->binarymodes |= CM_TOPICLOCK;
 896                                                 }
 897                                                 else
 898                                                 {
 899                                                         if (chan->binarymodes & CM_TOPICLOCK) strlcat(outlist,"t",MAXBUF);
 900                                                         chan->binarymodes &= ~CM_TOPICLOCK;
 901                                                 }
 902                                         }
 903                                 break;
 904
 905                                 case 'n':
 906                                         MOD_RESULT = 0;
 907                                         FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'n', "", mdir, 0));
 908                                         if (!MOD_RESULT)
 909                                         {
 910                                                 if (mdir)
 911                                                 {
 912                                                         if (!(chan->binarymodes & CM_NOEXTERNAL)) strlcat(outlist,"n",MAXBUF);
 913                                                         chan->binarymodes |= CM_NOEXTERNAL;
 914                                                 }
 915                                                 else
 916                                                 {
 917                                                         if (chan->binarymodes & CM_NOEXTERNAL) strlcat(outlist,"n",MAXBUF);
 918                                                         chan->binarymodes &= ~CM_NOEXTERNAL;
 919                                                 }
 920                                         }
 921                                 break;
 922
 923                                 case 'm':
 924                                         MOD_RESULT = 0;
 925                                         FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'm', "", mdir, 0));
 926                                         if (!MOD_RESULT)
 927                                         {
 928                                                 if (mdir)
 929                                                 {
 930                                                         if (!(chan->binarymodes & CM_MODERATED)) strlcat(outlist,"m",MAXBUF);
 931                                                         chan->binarymodes |= CM_MODERATED;
 932                                                 }
 933                                                 else
 934                                                 {
 935                                                         if (chan->binarymodes & CM_MODERATED) strlcat(outlist,"m",MAXBUF);
 936                                                         chan->binarymodes &= ~CM_MODERATED;
 937                                                 }
 938                                         }
 939                                 break;
 940
 941                                 case 's':
 942                                         MOD_RESULT = 0;
 943                                         FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 's', "", mdir, 0));
 944                                         if (!MOD_RESULT)
 945                                         {
 946                                                 if (mdir)
 947                                                 {
 948                                                         if (!(chan->binarymodes & CM_SECRET)) strlcat(outlist,"s",MAXBUF);
 949                                                         chan->binarymodes |= CM_SECRET;
 950                                                         if (chan->binarymodes & CM_PRIVATE)
 951                                                         {
 952                                                                 chan->binarymodes &= ~CM_PRIVATE;
 953                                                                 if (mdir)
 954                                                                 {
 955                                                                         strlcat(outlist,"-p+",MAXBUF);
 956                                                                 }
 957                                                         }
 958                                                 }
 959                                                 else
 960                                                 {
 961                                                         if (chan->binarymodes & CM_SECRET) strlcat(outlist,"s",MAXBUF);
 962                                                         chan->binarymodes &= ~CM_SECRET;
 963                                                 }
 964                                         }
 965                                 break;
 966
 967                                 case 'p':
 968                                         MOD_RESULT = 0;
 969                                         FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'p', "", mdir, 0));
 970                                         if (!MOD_RESULT)
 971                                         {
 972                                                 if (mdir)
 973                                                 {
 974                                                         if (!(chan->binarymodes & CM_PRIVATE)) strlcat(outlist,"p",MAXBUF);
 975                                                         chan->binarymodes |= CM_PRIVATE;
 976                                                         if (chan->binarymodes & CM_SECRET)
 977                                                         {
 978                                                                 chan->binarymodes &= ~CM_SECRET;
 979                                                                 if (mdir)
 980                                                                 {
 981                                                                         strlcat(outlist,"-s+",MAXBUF);
 982                                                                 }
 983                                                         }
 984                                                 }
 985                                                 else
 986                                                 {
 987                                                         if (chan->binarymodes & CM_PRIVATE) strlcat(outlist,"p",MAXBUF);
 988                                                         chan->binarymodes &= ~CM_PRIVATE;
 989                                                 }
 990                                         }
 991                                 break;
 992
 993                                 default:
 994                                         log(DEBUG,"Preprocessing custom mode %c: modelist: %s",*modechar,chan->custom_modes);
 995                                         string_list p;
 996                                         p.clear();
 997                                         if (((!strchr(chan->custom_modes,*modechar)) && (!mdir)) || ((strchr(chan->custom_modes,*modechar)) && (mdir)))
 998                                         {
 999                                                 if (!ModeIsListMode(*modechar,MT_CHANNEL))
1000                                                 {
1001                                                         log(DEBUG,"Mode %c isnt set on %s but trying to remove!",*modechar,chan->name);
1002                                                         break;
1003                                                 }
1004                                         }
1005                                         if (ModeDefined(*modechar,MT_CHANNEL))
1006                                         {
1007                                                 log(DEBUG,"A module has claimed this mode");
1008                                                 if (param<pcnt)
1009                                                 {
1010                                                         if ((ModeDefinedOn(*modechar,MT_CHANNEL)>0) && (mdir))
1011                                                         {
1012                                                                 p.push_back(parameters[param]);
1013                                                         }
1014                                                         if ((ModeDefinedOff(*modechar,MT_CHANNEL)>0) && (!mdir))
1015                                                         {
1016                                                                 p.push_back(parameters[param]);
1017                                                         }
1018                                                 }
1019                                                 bool handled = false;
1020                                                 if (param>=pcnt)
1021                                                 {
1022                                                         // we're supposed to have a parameter, but none was given... so dont handle the mode.
1023                                                         if (((ModeDefinedOn(*modechar,MT_CHANNEL)>0) && (mdir)) || ((ModeDefinedOff(*modechar,MT_CHANNEL)>0) && (!mdir)))
1024                                                         {
1025                                                                 log(DEBUG,"Not enough parameters for module-mode %c",*modechar);
1026                                                                 handled = true;
1027                                                                 param++;
1028                                                         }
1029                                                 }
1030
1031                                                 // BIG ASS IDIOTIC CODER WARNING!
1032                                                 // Using OnRawMode on another modules mode's behavour
1033                                                 // will confuse the crap out of admins! just because you CAN
1034                                                 // do it, doesnt mean you SHOULD!
1035                                                 MOD_RESULT = 0;
1036                                                 std::string para = "";
1037                                                 if (p.size())
1038                                                         para = p[0];
1039                                                 FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, *modechar, para, mdir, pcnt));
1040                                                 if (!MOD_RESULT)
1041                                                 {
1042                                                         for (int i = 0; i <= MODCOUNT; i++)
1043                                                         {
1044                                                                 if (!handled)
1045                                                                 {
1046                                                                         int t = modules[i]->OnExtendedMode(user,chan,*modechar,MT_CHANNEL,mdir,p);
1047                                                                         if (t != 0)
1048                                                                         {
1049                                                                                 log(DEBUG,"OnExtendedMode returned nonzero for a module");
1050                                                                                 char app[] = {*modechar, 0};
1051                                                                                 if (ModeIsListMode(*modechar,MT_CHANNEL))
1052                                                                                 {
1053                                                                                         if (t == -1)
1054                                                                                         {
1055                                                                                                 //pc++;
1056                                                                                                 param++;
1057                                                                                         }
1058                                                                                         else
1059                                                                                         {
1060                                                                                                 if (ptr>0)
1061                                                                                                 {
1062                                                                                                         strlcat(outlist, app,MAXBUF);
1063                                                                                                 }
1064                                                                                                 strlcpy(outpars[pc++],parameters[param++],MAXBUF);
1065                                                                                         }
1066                                                                                 }
1067                                                                                 else
1068                                                                                 {
1069                                                                                         if (ptr>0)
1070                                                                                         {
1071                                                                                                 if ((modelist[ptr-1] == '+') || (modelist[ptr-1] == '-'))
1072                                                                                                 {
1073                                                                                                         strlcat(outlist, app,MAXBUF);
1074                                                                                                 }
1075                                                                                                 else if (!strchr(outlist,*modechar))
1076                                                                                                 {
1077                                                                                                         strlcat(outlist, app,MAXBUF);
1078                                                                                                 }
1079                                                                                         }
1080                                                                                         chan->SetCustomMode(*modechar,mdir);
1081                                                                                         // include parameters in output if mode has them
1082                                                                                         if ((ModeDefinedOn(*modechar,MT_CHANNEL)>0) && (mdir))
1083                                                                                         {
1084                                                                                                 chan->SetCustomModeParam(modelist[ptr],parameters[param],mdir);
1085                                                                                                 strlcpy(outpars[pc++],parameters[param++],MAXBUF);
1086                                                                                         }
1087                                                                                 }
1088                                                                                 // break, because only one module can handle the mode.
1089                                                                                 handled = true;
1090                                                                         }
1091                                                                 }
1092                                                         }
1093                                                 }
1094                                         }
1095                                         else
1096                                         {
1097                                                 WriteServ(user->fd,"472 %s %c :is unknown mode char to me",user->nick,*modechar);
1098                                         }
1099                                 break;
1100
1101                         }
1102                 }
1103         }
1104
1105         /* this ensures only the *valid* modes are sent out onto the network */
1106         int xt = strlen(outlist)-1;
1107         while ((outlist[xt] == '-') || (outlist[xt] == '+'))
1108         {
1109                 outlist[xt] = '\0';
1110                 xt = strlen(outlist)-1;
1111         }
1112         if (outlist[0])
1113         {
1114                 strlcpy(outstr,outlist,MAXBUF);
1115                 for (ptr = 0; ptr < pc; ptr++)
1116                 {
1117                         strlcat(outstr," ",MAXBUF);
1118                         strlcat(outstr,outpars[ptr],MAXBUF);
1119                 }
1120                 if (local)
1121                 {
1122                         log(DEBUG,"Local mode change");
1123                         WriteChannelLocal(chan, user, "MODE %s %s",chan->name,outstr);
1124                         FOREACH_MOD(I_OnMode,OnMode(user, chan, TYPE_CHANNEL, outstr));
1125                 }
1126                 else
1127                 {
1128                         if (servermode)
1129                         {
1130                                 if (!silent)
1131                                 {
1132                                         WriteChannelWithServ(Config->ServerName,chan,"MODE %s %s",chan->name,outstr);
1133                                 }
1134
1135                         }
1136                         else
1137                         {
1138                                 if (!silent)
1139                                 {
1140                                         WriteChannel(chan,user,"MODE %s %s",chan->name,outstr);
1141                                         FOREACH_MOD(I_OnMode,OnMode(user, chan, TYPE_CHANNEL, outstr));
1142                                 }
1143                         }
1144                 }
1145         }
1146 }
1147
1148 // based on sourcemodes, return true or false to determine if umode is a valid mode a user may set on themselves or others.
1149
1150 bool ModeParser::AllowedUmode(char umode, char* sourcemodes,bool adding,bool serveroverride)
1151 {
1152         log(DEBUG,"Allowed_umode: %c %s",umode,sourcemodes);
1153         // Servers can +o and -o arbitrarily
1154         if ((serveroverride == true) && (umode == 'o'))
1155         {
1156                 return true;
1157         }
1158         // RFC1459 specified modes
1159         if ((umode == 'w') || (umode == 's') || (umode == 'i'))
1160         {
1161                 log(DEBUG,"umode %c allowed by RFC1459 scemantics",umode);
1162                 return true;
1163         }
1164
1165         // user may not +o themselves or others, but an oper may de-oper other opers or themselves
1166         if ((strchr(sourcemodes,'o')) && (!adding))
1167         {
1168                 log(DEBUG,"umode %c allowed by RFC1459 scemantics",umode);
1169                 return true;
1170         }
1171         else if (umode == 'o')
1172         {
1173                 log(DEBUG,"umode %c allowed by RFC1459 scemantics",umode);
1174                 return false;
1175         }
1176
1177         // process any module-defined modes that need oper
1178         if ((ModeDefinedOper(umode,MT_CLIENT)) && (strchr(sourcemodes,'o')))
1179         {
1180                 log(DEBUG,"umode %c allowed by module handler (oper only mode)",umode);
1181                 return true;
1182         }
1183         else
1184         if (ModeDefined(umode,MT_CLIENT))
1185         {
1186                 // process any module-defined modes that don't need oper
1187                 log(DEBUG,"umode %c allowed by module handler (non-oper mode)",umode);
1188                 if ((ModeDefinedOper(umode,MT_CLIENT)) && (!strchr(sourcemodes,'o')))
1189                 {
1190                         // no, this mode needs oper, and this user 'aint got what it takes!
1191                         return false;
1192                 }
1193                 return true;
1194         }
1195
1196         // anything else - return false.
1197         log(DEBUG,"umode %c not known by any ruleset",umode);
1198         return false;
1199 }
1200
1201 bool ModeParser::ProcessModuleUmode(char umode, userrec* source, void* dest, bool adding)
1202 {
1203         userrec* s2;
1204         bool faked = false;
1205         if (!source)
1206         {
1207                 s2 = new userrec;
1208                 strlcpy(s2->nick,Config->ServerName,NICKMAX);
1209                 strlcpy(s2->modes,"o",52);
1210                 s2->fd = -1;
1211                 source = s2;
1212                 faked = true;
1213         }
1214         string_list p;
1215         p.clear();
1216         if (ModeDefined(umode,MT_CLIENT))
1217         {
1218                 for (int i = 0; i <= MODCOUNT; i++)
1219                 {
1220                         if (modules[i]->OnExtendedMode(source,(void*)dest,umode,MT_CLIENT,adding,p))
1221                         {
1222                                 log(DEBUG,"Module %s claims umode %c",Config->module_names[i].c_str(),umode);
1223                                 return true;
1224                         }
1225                 }
1226                 log(DEBUG,"No module claims umode %c",umode);
1227                 if (faked)
1228                 {
1229                         delete s2;
1230                         source = NULL;
1231                 }
1232                 return false;
1233         }
1234         else
1235         {
1236                 if (faked)
1237                 {
1238                         delete s2;
1239                         source = NULL;
1240                 }
1241                 return false;
1242         }
1243 }
1244
1245 void cmd_mode::Handle (char **parameters, int pcnt, userrec *user)
1246 {
1247         chanrec* Ptr;
1248         userrec* dest;
1249         int can_change;
1250         int direction = 1;
1251         char outpars[MAXBUF];
1252
1253         dest = Find(parameters[0]);
1254
1255         if (!user)
1256         {
1257                 return;
1258         }
1259
1260         if ((dest) && (pcnt == 1))
1261         {
1262                 WriteServ(user->fd,"221 %s :+%s",dest->nick,dest->modes);
1263                 return;
1264         }
1265
1266         if ((dest) && (pcnt > 1))
1267         {
1268                 std::string tidied = ServerInstance->ModeGrok->CompressModes(parameters[1],false);
1269                 parameters[1] = (char*)tidied.c_str();
1270
1271                 char dmodes[MAXBUF];
1272                 strlcpy(dmodes,dest->modes,52);
1273                 log(DEBUG,"pulled up dest user modes: %s",dmodes);
1274
1275                 can_change = 0;
1276                 if (user != dest)
1277                 {
1278                         if ((strchr(user->modes,'o')) || (is_uline(user->server)))
1279                         {
1280                                 can_change = 1;
1281                         }
1282                 }
1283                 else
1284                 {
1285                         can_change = 1;
1286                 }
1287                 if (!can_change)
1288                 {
1289                         WriteServ(user->fd,"482 %s :Can't change mode for other users",user->nick);
1290                         return;
1291                 }
1292
1293                 outpars[0] = '+';
1294                 outpars[1] = 0;
1295                 direction = 1;
1296
1297                 if ((parameters[1][0] != '+') && (parameters[1][0] != '-'))
1298                         return;
1299
1300                 for (unsigned int i = 0; i < strlen(parameters[1]); i++)
1301                 {
1302                         if (parameters[1][i] == ' ')
1303                                 continue;
1304                         if (parameters[1][i] == '+')
1305                         {
1306                                 if (direction != 1)
1307                                 {
1308                                         int t = strlen(outpars)-1;
1309                                         if ((outpars[t] == '+') || (outpars[t] == '-'))
1310                                         {
1311                                                 outpars[t] = '+';
1312                                         }
1313                                         else
1314                                         {
1315                                                 strcat(outpars,"+");
1316                                         }
1317                                 }
1318                                 direction = 1;
1319                         }
1320                         else
1321                         if (parameters[1][i] == '-')
1322                         {
1323                                 if (direction != 0)
1324                                 {
1325                                         int t = strlen(outpars)-1;
1326                                         if ((outpars[t] == '+') || (outpars[t] == '-'))
1327                                         {
1328                                                 outpars[t] = '-';
1329                                         }
1330                                         else
1331                                         {
1332                                                 strcat(outpars,"-");
1333                                         }
1334                                 }
1335                                 direction = 0;
1336                         }
1337                         else
1338                         {
1339                                 can_change = 0;
1340                                 if (strchr(user->modes,'o'))
1341                                 {
1342                                         can_change = 1;
1343                                 }
1344                                 else
1345                                 {
1346                                         if ((parameters[1][i] == 'i') || (parameters[1][i] == 'w') || (parameters[1][i] == 's') || (ServerInstance->ModeGrok->AllowedUmode(parameters[1][i],user->modes,direction,false)))
1347                                         {
1348                                                 can_change = 1;
1349                                         }
1350                                 }
1351                                 if (can_change)
1352                                 {
1353                                         if (direction == 1)
1354                                         {
1355                                                 if ((!strchr(dmodes,parameters[1][i])) && (ServerInstance->ModeGrok->AllowedUmode(parameters[1][i],user->modes,true,false)))
1356                                                 {
1357                                                         char umode = parameters[1][i];
1358                                                         if ((ServerInstance->ModeGrok->ProcessModuleUmode(umode, user, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
1359                                                         {
1360                                                                 int q = strlen(dmodes);
1361                                                                 int r = strlen(outpars);
1362                                                                 dmodes[q+1]='\0';
1363                                                                 dmodes[q] = parameters[1][i];
1364                                                                 outpars[r+1]='\0';
1365                                                                 outpars[r] = parameters[1][i];
1366                                                                 if (parameters[1][i] == 'o')
1367                                                                 {
1368                                                                         FOREACH_MOD(I_OnGlobalOper,OnGlobalOper(dest));
1369                                                                 }
1370                                                         }
1371                                                 }
1372                                         }
1373                                         else
1374                                         {
1375                                                 if ((ServerInstance->ModeGrok->AllowedUmode(parameters[1][i],user->modes,false,false)) && (strchr(dmodes,parameters[1][i])))
1376                                                 {
1377                                                         char umode = parameters[1][i];
1378                                                         if ((ServerInstance->ModeGrok->ProcessModuleUmode(umode, user, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
1379                                                         {
1380                                                                 unsigned int q = 0;
1381                                                                 char temp[MAXBUF];
1382                                                                 char moo[MAXBUF];
1383
1384                                                                 unsigned int r = strlen(outpars);
1385                                                                 outpars[r+1]='\0';
1386                                                                 outpars[r] = parameters[1][i];
1387
1388                                                                 *temp = 0;
1389                                                                 for (q = 0; q < strlen(dmodes); q++)
1390                                                                 {
1391                                                                         if (dmodes[q] != parameters[1][i])
1392                                                                         {
1393                                                                                 moo[0] = dmodes[q];
1394                                                                                 moo[1] = '\0';
1395                                                                                 strlcat(temp,moo,MAXBUF);
1396                                                                         }
1397                                                                 }
1398                                                                 strlcpy(dmodes,temp,52);
1399
1400                                                                 if (umode == 'o')
1401                                                                 {
1402                                                                         *dest->oper = 0;
1403                                                                         DeleteOper(dest);
1404                                                                 }
1405                                                         }
1406                                                 }
1407                                         }
1408                                 }
1409                         }
1410                 }
1411                 if (outpars[0])
1412                 {
1413                         char b[MAXBUF];
1414                         strlcpy(b,"",MAXBUF);
1415                         unsigned int z = 0;
1416                         unsigned int i = 0;
1417                         while (i < strlen (outpars))
1418                         {
1419                                 b[z++] = outpars[i++];
1420                                 b[z] = '\0';
1421                                 if (i<strlen(outpars)-1)
1422                                 {
1423                                         if (((outpars[i] == '-') || (outpars[i] == '+')) && ((outpars[i+1] == '-') || (outpars[i+1] == '+')))
1424                                         {
1425                                                 // someones playing silly buggers and trying
1426                                                 // to put a +- or -+ into the line...
1427                                                 i++;
1428                                         }
1429                                 }
1430                                 if (i == strlen(outpars)-1)
1431                                 {
1432                                         if ((outpars[i] == '-') || (outpars[i] == '+'))
1433                                         {
1434                                                 i++;
1435                                         }
1436                                 }
1437                         }
1438
1439                         z = strlen(b)-1;
1440                         if ((b[z] == '-') || (b[z] == '+'))
1441                                 b[z] = '\0';
1442
1443                         if ((!b[0]) || (!strcmp(b,"+")) || (!strcmp(b,"-")))
1444                                 return;
1445
1446                         if (strcmp(b,""))
1447                         {
1448                                 WriteTo(user, dest, "MODE %s :%s", dest->nick, b);
1449                                 FOREACH_MOD(I_OnMode,OnMode(user, dest, TYPE_USER, b));
1450                         }
1451
1452                         if (strlen(dmodes)>MAXMODES)
1453                         {
1454                                 dmodes[MAXMODES-1] = '\0';
1455                         }
1456                         log(DEBUG,"Stripped mode line");
1457                         log(DEBUG,"Line dest is now %s",dmodes);
1458                         strlcpy(dest->modes,dmodes,52);
1459
1460                 }
1461
1462                 return;
1463         }
1464
1465         Ptr = FindChan(parameters[0]);
1466         if (Ptr)
1467         {
1468                 if (pcnt == 1)
1469                 {
1470                         /* just /modes #channel */
1471                         WriteServ(user->fd,"324 %s %s +%s",user->nick, Ptr->name, chanmodes(Ptr,has_channel(user,Ptr)));
1472                         WriteServ(user->fd,"329 %s %s %d", user->nick, Ptr->name, Ptr->created);
1473                         return;
1474                 }
1475                 else
1476                 if (pcnt == 2)
1477                 {
1478                         char* mode = parameters[1];
1479                         if (*mode == '+')
1480                                 mode++;
1481                         int MOD_RESULT = 0;
1482                         FOREACH_RESULT(I_OnRawMode,OnRawMode(user, Ptr, *mode, "", false, 0));
1483                         if (!MOD_RESULT)
1484                         {
1485                                 if (*mode == 'b')
1486                                 {
1487
1488                                         for (BanList::iterator i = Ptr->bans.begin(); i != Ptr->bans.end(); i++)
1489                                         {
1490                                                 WriteServ(user->fd,"367 %s %s %s %s %d",user->nick, Ptr->name, i->data, i->set_by, i->set_time);
1491                                         }
1492                                         WriteServ(user->fd,"368 %s %s :End of channel ban list",user->nick, Ptr->name);
1493                                         return;
1494                                 }
1495                                 if ((ModeDefined(*mode,MT_CHANNEL)) && (ModeIsListMode(*mode,MT_CHANNEL)))
1496                                 {
1497                                         // list of items for an extmode
1498                                         log(DEBUG,"Calling OnSendList for all modules, list output for mode %c",*mode);
1499                                         FOREACH_MOD(I_OnSendList,OnSendList(user,Ptr,*mode));
1500                                         return;
1501                                 }
1502                         }
1503                 }
1504
1505                 if (((Ptr) && (!has_channel(user,Ptr))) && (!is_uline(user->server)) && (IS_LOCAL(user)))
1506                 {
1507                         WriteServ(user->fd,"442 %s %s :You're not on that channel!",user->nick, Ptr->name);
1508                         return;
1509                 }
1510
1511                 if (Ptr)
1512                 {
1513                         int MOD_RESULT = 0;
1514                         FOREACH_RESULT(I_OnAccessCheck,OnAccessCheck(user,NULL,Ptr,AC_GENERAL_MODE));
1515
1516                         if (MOD_RESULT == ACR_DENY)
1517                                 return;
1518                         if (MOD_RESULT == ACR_DEFAULT)
1519                         {
1520                                 if ((cstatus(user,Ptr) < STATUS_HOP) && (IS_LOCAL(user)))
1521                                 {
1522                                         WriteServ(user->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel",user->nick, Ptr->name);
1523                                         return;
1524                                 }
1525                         }
1526
1527                         ServerInstance->ModeGrok->ProcessModes(parameters,user,Ptr,cstatus(user,Ptr),pcnt,false,false,false);
1528                 }
1529         }
1530         else
1531         {
1532                 WriteServ(user->fd,"401 %s %s :No such nick/channel",user->nick, parameters[0]);
1533         }
1534 }
1535
1536
1537
1538
1539 void ModeParser::ServerMode(char **parameters, int pcnt, userrec *user)
1540 {
1541         chanrec* Ptr;
1542         userrec* dest;
1543         int can_change;
1544         int direction = 1;
1545         char outpars[MAXBUF];
1546
1547         dest = Find(parameters[0]);
1548
1549         // fix: ChroNiCk found this - we cant use this as debug if its null!
1550         if (dest)
1551         {
1552                 log(DEBUG,"server_mode on %s",dest->nick);
1553         }
1554
1555         if ((dest) && (pcnt > 1))
1556         {
1557                 std::string tidied = ServerInstance->ModeGrok->CompressModes(parameters[1],false);
1558                 parameters[1] = (char*)tidied.c_str();
1559
1560                 char dmodes[MAXBUF];
1561                 strlcpy(dmodes,dest->modes,52);
1562
1563                 outpars[0] = '+';
1564                 outpars[1] = 0;
1565                 direction = 1;
1566
1567                 if ((parameters[1][0] != '+') && (parameters[1][0] != '-'))
1568                         return;
1569
1570                 for (unsigned int i = 0; i < strlen(parameters[1]); i++)
1571                 {
1572                         if (parameters[1][i] == ' ')
1573                                 continue;
1574                         if (parameters[1][i] == '+')
1575                         {
1576                                 if (direction != 1)
1577                                 {
1578                                         int t = strlen(outpars)-1;
1579                                         if ((outpars[t] == '+') || (outpars[t] == '-'))
1580                                         {
1581                                                 outpars[t] = '+';
1582                                         }
1583                                         else
1584                                         {
1585                                                 strcat(outpars,"+");
1586                                         }
1587                                 }
1588                                 direction = 1;
1589                         }
1590                         else
1591                         if (parameters[1][i] == '-')
1592                         {
1593                                 if (direction != 0)
1594                                 {
1595                                         int t = strlen(outpars)-1;
1596                                         if ((outpars[t] == '+') || (outpars[t] == '-'))
1597                                         {
1598                                                 outpars[t] = '-';
1599                                         }
1600                                         else
1601                                         {
1602                                                 strcat(outpars,"-");
1603                                         }
1604                                 }
1605                                 direction = 0;
1606                         }
1607                         else
1608                         {
1609                                 log(DEBUG,"begin mode processing entry");
1610                                 can_change = 1;
1611                                 if (can_change)
1612                                 {
1613                                         if (direction == 1)
1614                                         {
1615                                                 log(DEBUG,"umode %c being added",parameters[1][i]);
1616                                                 if ((!strchr(dmodes,parameters[1][i])) && (ServerInstance->ModeGrok->AllowedUmode(parameters[1][i],user->modes,true,true)))
1617                                                 {
1618                                                         char umode = parameters[1][i];
1619                                                         log(DEBUG,"umode %c is an allowed umode",umode);
1620                                                         if ((ServerInstance->ModeGrok->ProcessModuleUmode(umode, user, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
1621                                                         {
1622                                                                 int v1 = strlen(dmodes);
1623                                                                 int v2 = strlen(outpars);
1624                                                                 dmodes[v1+1]='\0';
1625                                                                 dmodes[v1] = parameters[1][i];
1626                                                                 outpars[v2+1]='\0';
1627                                                                 outpars[v2] = parameters[1][i];
1628                                                         }
1629                                                 }
1630                                         }
1631                                         else
1632                                         {
1633                                                 // can only remove a mode they already have
1634                                                 log(DEBUG,"umode %c being removed",parameters[1][i]);
1635                                                 if ((ServerInstance->ModeGrok->AllowedUmode(parameters[1][i],user->modes,false,true)) && (strchr(dmodes,parameters[1][i])))
1636                                                 {
1637                                                         char umode = parameters[1][i];
1638                                                         log(DEBUG,"umode %c is an allowed umode",umode);
1639                                                         if ((ServerInstance->ModeGrok->ProcessModuleUmode(umode, user, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
1640                                                         {
1641                                                                 unsigned int q = 0;
1642                                                                 char temp[MAXBUF];
1643                                                                 char moo[MAXBUF];
1644
1645                                                                 unsigned int v1 = strlen(outpars);
1646                                                                 outpars[v1+1]='\0';
1647                                                                 outpars[v1] = parameters[1][i];
1648                                                                 *temp = 0;
1649                                                                 for (q = 0; q < strlen(dmodes); q++)
1650                                                                 {
1651                                                                         if (dmodes[q] != parameters[1][i])
1652                                                                         {
1653                                                                                 moo[0] = dmodes[q];
1654                                                                                 moo[1] = '\0';
1655                                                                                 strlcat(temp,moo,MAXBUF);
1656                                                                         }
1657                                                                 }
1658                                                                 strlcpy(dmodes,temp,52);
1659                                                         }
1660                                                 }
1661                                         }
1662                                 }
1663                         }
1664                 }
1665                 if (outpars[0])
1666                 {
1667                         char b[MAXBUF];
1668                         strlcpy(b,"",MAXBUF);
1669                         unsigned int z = 0;
1670                         unsigned int i = 0;
1671                         while (i < strlen (outpars))
1672                         {
1673                                 b[z++] = outpars[i++];
1674                                 b[z] = '\0';
1675                                 if (i<strlen(outpars)-1)
1676                                 {
1677                                         if (((outpars[i] == '-') || (outpars[i] == '+')) && ((outpars[i+1] == '-') || (outpars[i+1] == '+')))
1678                                         {
1679                                                 // someones playing silly buggers and trying
1680                                                 // to put a +- or -+ into the line...
1681                                                 i++;
1682                                         }
1683                                 }
1684                                 if (i == strlen(outpars)-1)
1685                                 {
1686                                         if ((outpars[i] == '-') || (outpars[i] == '+'))
1687                                         {
1688                                                 i++;
1689                                         }
1690                                 }
1691                         }
1692
1693                         z = strlen(b)-1;
1694                         if ((b[z] == '-') || (b[z] == '+'))
1695                                 b[z] = '\0';
1696
1697                         if ((!b[0]) || (!strcmp(b,"+")) || (!strcmp(b,"-")))
1698                                 return;
1699
1700                         if (strcmp(b,""))
1701                         {
1702                                 WriteTo(user, dest, "MODE %s :%s", dest->nick, b);
1703                                 FOREACH_MOD(I_OnMode,OnMode(user, dest, TYPE_USER, b));
1704                         }
1705
1706                         if (strlen(dmodes)>MAXMODES)
1707                         {
1708                                 dmodes[MAXMODES-1] = '\0';
1709                         }
1710                         log(DEBUG,"Stripped mode line");
1711                         log(DEBUG,"Line dest is now %s",dmodes);
1712                         strlcpy(dest->modes,dmodes,MAXMODES);
1713
1714                 }
1715
1716                 return;
1717         }
1718
1719         Ptr = FindChan(parameters[0]);
1720         if (Ptr)
1721         {
1722                 ServerInstance->ModeGrok->ProcessModes(parameters,user,Ptr,STATUS_OP,pcnt,true,false,false);
1723         }
1724         else
1725         {
1726                 WriteServ(user->fd,"401 %s %s :No such nick/channel",user->nick, parameters[0]);
1727         }
1728 }