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                                         log(DEFAULT,"The target user given to GiveOps was already opped on the channel");
 103                                         return NULL;
 104                                 }
 105                                 d->chans[i].uc_modes = d->chans[i].uc_modes | UCMODE_OP;
 106                                 d->chans[i].channel->AddOppedUser((char*)d);
 107                                 log(DEBUG,"gave ops: %s %s",d->chans[i].channel->name,d->nick);
 108                                 return d->nick;
 109                         }
 110                 }
 111                 log(DEFAULT,"The target channel given to GiveOps was not in the users mode list");
 112         }
 113         return NULL;
 114 }
 115
 116 char* ModeParser::GiveHops(userrec *user,char *dest,chanrec *chan,int status)
 117 {
 118         userrec *d;
 119
 120         if ((!user) || (!dest) || (!chan) || (!*dest))
 121         {
 122                 log(DEFAULT,"*** BUG *** GiveHops was given an invalid parameter");
 123                 return NULL;
 124         }
 125
 126         d = Find(dest);
 127         if (!d)
 128         {
 129                 WriteServ(user->fd,"401 %s %s :No such nick/channel",user->nick, dest);
 130                 return NULL;
 131         }
 132         else
 133         {
 134                 if (user->server == d->server)
 135                 {
 136                         int MOD_RESULT = 0;
 137                         FOREACH_RESULT(I_OnAccessCheck,OnAccessCheck(user,d,chan,AC_HALFOP));
 138
 139                         if (MOD_RESULT == ACR_DENY)
 140                                 return NULL;
 141                         if (MOD_RESULT == ACR_DEFAULT)
 142                         {
 143                                 if ((status < STATUS_OP) && (!is_uline(user->server)) && (IS_LOCAL(user)))
 144                                 {
 145                                         WriteServ(user->fd,"482 %s %s :You're not a channel operator",user->nick, chan->name);
 146                                         return NULL;
 147                                 }
 148                         }
 149                 }
 150
 151                 for (unsigned int i = 0; i < d->chans.size(); i++)
 152                 {
 153                         if ((d->chans[i].channel != NULL) && (chan != NULL))
 154                         if (!strcasecmp(d->chans[i].channel->name,chan->name))
 155                         {
 156                                 if (d->chans[i].uc_modes & UCMODE_HOP)
 157                                 {
 158                                         /* mode already set on user, dont allow multiple */
 159                                         return NULL;
 160                                 }
 161                                 d->chans[i].uc_modes = d->chans[i].uc_modes | UCMODE_HOP;
 162                                 d->chans[i].channel->AddHalfoppedUser((char*)d);
 163                                 log(DEBUG,"gave h-ops: %s %s",d->chans[i].channel->name,d->nick);
 164                                 return d->nick;
 165                         }
 166                 }
 167         }
 168         return NULL;
 169 }
 170
 171 char* ModeParser::GiveVoice(userrec *user,char *dest,chanrec *chan,int status)
 172 {
 173         userrec *d;
 174
 175         if ((!user) || (!dest) || (!chan) || (!*dest))
 176         {
 177                 log(DEFAULT,"*** BUG *** GiveVoice was given an invalid parameter");
 178                 return NULL;
 179         }
 180
 181         d = Find(dest);
 182         if (!d)
 183         {
 184                 WriteServ(user->fd,"401 %s %s :No such nick/channel",user->nick, dest);
 185                 return NULL;
 186         }
 187         else
 188         {
 189                 if (user->server == d->server)
 190                 {
 191                         int MOD_RESULT = 0;
 192                         FOREACH_RESULT(I_OnAccessCheck,OnAccessCheck(user,d,chan,AC_VOICE));
 193
 194                         if (MOD_RESULT == ACR_DENY)
 195                                 return NULL;
 196                         if (MOD_RESULT == ACR_DEFAULT)
 197                         {
 198                                 if ((status < STATUS_HOP) && (!is_uline(user->server)) && (IS_LOCAL(user)))
 199                                 {
 200                                         WriteServ(user->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel",user->nick, chan->name);
 201                                         return NULL;
 202                                 }
 203                         }
 204                 }
 205
 206                 for (unsigned int i = 0; i < d->chans.size(); i++)
 207                 {
 208                         if ((d->chans[i].channel != NULL) && (chan != NULL))
 209                         if (!strcasecmp(d->chans[i].channel->name,chan->name))
 210                         {
 211                                 if (d->chans[i].uc_modes & UCMODE_VOICE)
 212                                 {
 213                                         /* mode already set on user, dont allow multiple */
 214                                         return NULL;
 215                                 }
 216                                 d->chans[i].uc_modes = d->chans[i].uc_modes | UCMODE_VOICE;
 217                                 d->chans[i].channel->AddVoicedUser((char*)d);
 218                                 log(DEBUG,"gave voice: %s %s",d->chans[i].channel->name,d->nick);
 219                                 return d->nick;
 220                         }
 221                 }
 222         }
 223         return NULL;
 224 }
 225
 226 char* ModeParser::TakeOps(userrec *user,char *dest,chanrec *chan,int status)
 227 {
 228         userrec *d;
 229
 230         if ((!user) || (!dest) || (!chan) || (!*dest))
 231         {
 232                 log(DEFAULT,"*** BUG *** TakeOps was given an invalid parameter");
 233                 return NULL;
 234         }
 235
 236         d = Find(dest);
 237         if (!d)
 238         {
 239                 log(DEBUG,"TakeOps couldnt resolve the target nickname: %s",dest);
 240                 WriteServ(user->fd,"401 %s %s :No such nick/channel",user->nick, dest);
 241                 return NULL;
 242         }
 243         else
 244         {
 245                 if (user->server == d->server)
 246                 {
 247                         int MOD_RESULT = 0;
 248                         FOREACH_RESULT(I_OnAccessCheck,OnAccessCheck(user,d,chan,AC_DEOP));
 249
 250                         if (MOD_RESULT == ACR_DENY)
 251                                 return NULL;
 252                         if (MOD_RESULT == ACR_DEFAULT)
 253                         {
 254                                 if ((status < STATUS_OP) && (!is_uline(user->server)) && (IS_LOCAL(user)) && (IS_LOCAL(user)))
 255                                 {
 256                                         WriteServ(user->fd,"482 %s %s :You are not a channel operator",user->nick, chan->name);
 257                                         return NULL;
 258                                 }
 259                         }
 260                 }
 261
 262                 for (unsigned int i = 0; i < d->chans.size(); i++)
 263                 {
 264                         if ((d->chans[i].channel != NULL) && (chan != NULL))
 265                         if (!strcasecmp(d->chans[i].channel->name,chan->name))
 266                         {
 267                                 if ((d->chans[i].uc_modes & UCMODE_OP) == 0)
 268                                 {
 269                                         /* mode already set on user, dont allow multiple */
 270                                         return NULL;
 271                                 }
 272                                 d->chans[i].uc_modes ^= UCMODE_OP;
 273                                 d->chans[i].channel->DelOppedUser((char*)d);
 274                                 log(DEBUG,"took ops: %s %s",d->chans[i].channel->name,d->nick);
 275                                 return d->nick;
 276                         }
 277                 }
 278                 log(DEBUG,"TakeOps couldnt locate the target channel in the target users list");
 279         }
 280         return NULL;
 281 }
 282
 283 char* ModeParser::TakeHops(userrec *user,char *dest,chanrec *chan,int status)
 284 {
 285         userrec *d;
 286
 287         if ((!user) || (!dest) || (!chan) || (!*dest))
 288         {
 289                 log(DEFAULT,"*** BUG *** TakeHops was given an invalid parameter");
 290                 return NULL;
 291         }
 292
 293         d = Find(dest);
 294         if (!d)
 295         {
 296                 WriteServ(user->fd,"401 %s %s :No such nick/channel",user->nick, dest);
 297                 return NULL;
 298         }
 299         else
 300         {
 301                 if (user->server == d->server)
 302                 {
 303                         int MOD_RESULT = 0;
 304                         FOREACH_RESULT(I_OnAccessCheck,OnAccessCheck(user,d,chan,AC_DEHALFOP));
 305
 306                         if (MOD_RESULT == ACR_DENY)
 307                                 return NULL;
 308                         if (MOD_RESULT == ACR_DEFAULT)
 309                         {
 310                                 /* Tweak by Brain suggested by w00t, allow a halfop to dehalfop themselves */
 311                                 if ((user != d) && ((status < STATUS_OP) && (!is_uline(user->server))) && (IS_LOCAL(user)))
 312                                 {
 313                                         WriteServ(user->fd,"482 %s %s :You are not a channel operator",user->nick, chan->name);
 314                                         return NULL;
 315                                 }
 316                         }
 317                 }
 318
 319                 for (unsigned int i = 0; i < d->chans.size(); i++)
 320                 {
 321                         if ((d->chans[i].channel != NULL) && (chan != NULL))
 322                         if (!strcasecmp(d->chans[i].channel->name,chan->name))
 323                         {
 324                                 if ((d->chans[i].uc_modes & UCMODE_HOP) == 0)
 325                                 {
 326                                         /* mode already set on user, dont allow multiple */
 327                                         return NULL;
 328                                 }
 329                                 d->chans[i].uc_modes ^= UCMODE_HOP;
 330                                 d->chans[i].channel->DelHalfoppedUser((char*)d);
 331                                 log(DEBUG,"took h-ops: %s %s",d->chans[i].channel->name,d->nick);
 332                                 return d->nick;
 333                         }
 334                 }
 335         }
 336         return NULL;
 337 }
 338
 339 char* ModeParser::TakeVoice(userrec *user,char *dest,chanrec *chan,int status)
 340 {
 341         userrec *d;
 342
 343         if ((!user) || (!dest) || (!chan) || (!*dest))
 344         {
 345                 log(DEFAULT,"*** BUG *** TakeVoice was given an invalid parameter");
 346                 return NULL;
 347         }
 348
 349         d = Find(dest);
 350         if (!d)
 351         {
 352                 WriteServ(user->fd,"401 %s %s :No such nick/channel",user->nick, dest);
 353                 return NULL;
 354         }
 355         else
 356         {
 357                 if (user->server == d->server)
 358                 {
 359                         int MOD_RESULT = 0;
 360                         FOREACH_RESULT(I_OnAccessCheck,OnAccessCheck(user,d,chan,AC_DEVOICE));
 361
 362                         if (MOD_RESULT == ACR_DENY)
 363                                 return NULL;
 364                         if (MOD_RESULT == ACR_DEFAULT)
 365                         {
 366                                 if ((status < STATUS_HOP) && (!is_uline(user->server)) && (IS_LOCAL(user)))
 367                                 {
 368                                         WriteServ(user->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel",user->nick, chan->name);
 369                                         return NULL;
 370                                 }
 371                         }
 372                 }
 373
 374                 for (unsigned int i = 0; i < d->chans.size(); i++)
 375                 {
 376                         if ((d->chans[i].channel != NULL) && (chan != NULL))
 377                         if (!strcasecmp(d->chans[i].channel->name,chan->name))
 378                         {
 379                                 if ((d->chans[i].uc_modes & UCMODE_VOICE) == 0)
 380                                 {
 381                                         /* mode already set on user, dont allow multiple */
 382                                         return NULL;
 383                                 }
 384                                 d->chans[i].uc_modes ^= UCMODE_VOICE;
 385                                 d->chans[i].channel->DelVoicedUser((char*)d);
 386                                 log(DEBUG,"took voice: %s %s",d->chans[i].channel->name,d->nick);
 387                                 return d->nick;
 388                         }
 389                 }
 390         }
 391         return NULL;
 392 }
 393
 394 char* ModeParser::AddBan(userrec *user,char *dest,chanrec *chan,int status)
 395 {
 396         BanItem b;
 397         int toomanyexclamation = 0;
 398         int toomanyat = 0;
 399
 400         if ((!user) || (!dest) || (!chan) || (!*dest))
 401         {
 402                 log(DEFAULT,"*** BUG *** AddBan was given an invalid parameter");
 403                 return NULL;
 404         }
 405
 406         for (char* i = dest; *i; i++)
 407         {
 408                 if ((*i < 32) || (*i > 126))
 409                 {
 410                         return NULL;
 411                 }
 412                 else if (*i == '!')
 413                 {
 414                         toomanyexclamation++;
 415                 }
 416                 else if (*i == '@')
 417                 {
 418                         toomanyat++;
 419                 }
 420         }
 421
 422         if (toomanyexclamation != 1 || toomanyat != 1)
 423                 /*
 424                  * this stops sillyness like n!u!u!u@h, though note that most
 425                  * ircds don't actually verify banmask validity. --w00t
 426                  */
 427                 return NULL;
 428
 429         long maxbans = GetMaxBans(chan->name);
 430         if ((unsigned)chan->bans.size() > (unsigned)maxbans)
 431         {
 432                 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);
 433                 return NULL;
 434         }
 435
 436         log(DEBUG,"AddBan: %s %s",chan->name,user->nick);
 437
 438         int MOD_RESULT = 0;
 439         FOREACH_RESULT(I_OnAddBan,OnAddBan(user,chan,dest));
 440         if (MOD_RESULT)
 441                 return NULL;
 442
 443         TidyBan(dest);
 444         for (BanList::iterator i = chan->bans.begin(); i != chan->bans.end(); i++)
 445         {
 446                 if (!strcasecmp(i->data,dest))
 447                 {
 448                         // dont allow a user to set the same ban twice
 449                         return NULL;
 450                 }
 451         }
 452
 453         b.set_time = TIME;
 454         strlcpy(b.data,dest,MAXBUF);
 455         strlcpy(b.set_by,user->nick,NICKMAX);
 456         chan->bans.push_back(b);
 457         return dest;
 458 }
 459
 460 char* ModeParser::TakeBan(userrec *user,char *dest,chanrec *chan,int status)
 461 {
 462         if ((!user) || (!dest) || (!chan) || (!*dest)) {
 463                 log(DEFAULT,"*** BUG *** TakeBan was given an invalid parameter");
 464                 return 0;
 465         }
 466
 467         log(DEBUG,"del_ban: %s %s",chan->name,user->nick);
 468         for (BanList::iterator i = chan->bans.begin(); i != chan->bans.end(); i++)
 469         {
 470                 if (!strcasecmp(i->data,dest))
 471                 {
 472                         int MOD_RESULT = 0;
 473                         FOREACH_RESULT(I_OnDelBan,OnDelBan(user,chan,dest));
 474                         if (MOD_RESULT)
 475                                 return NULL;
 476                         chan->bans.erase(i);
 477                         return dest;
 478                 }
 479         }
 480         return NULL;
 481 }
 482
 483 // tidies up redundant modes, e.g. +nt-nt+i becomes +-+i,
 484 // a section further down the chain tidies up the +-+- crap.
 485 std::string ModeParser::CompressModes(std::string modes,bool channelmodes)
 486 {
 487         int counts[127];
 488         bool active[127];
 489         memset(counts,0,sizeof(counts));
 490         memset(active,0,sizeof(active));
 491         for (unsigned int i = 0; i < modes.length(); i++)
 492         {
 493                 if ((modes[i] == '+') || (modes[i] == '-'))
 494                         continue;
 495                 if (channelmodes)
 496                 {
 497                         if ((strchr("itnmsp",modes[i])) || ((ModeDefined(modes[i],MT_CHANNEL)) && (ModeDefinedOn(modes[i],MT_CHANNEL)==0) && (ModeDefinedOff(modes[i],MT_CHANNEL)==0)))
 498                         {
 499                                 log(DEBUG,"Tidy mode %c",modes[i]);
 500                                 counts[(unsigned int)modes[i]]++;
 501                                 active[(unsigned int)modes[i]] = true;
 502                         }
 503                 }
 504                 else
 505                 {
 506                         log(DEBUG,"Tidy mode %c",modes[i]);
 507                         counts[(unsigned int)modes[i]]++;
 508                         active[(unsigned int)modes[i]] = true;
 509                 }
 510         }
 511         for (int j = 65; j < 127; j++)
 512         {
 513                 if ((counts[j] > 1) && (active[j] == true))
 514                 {
 515                         static char v[2];
 516                         v[0] = (unsigned char)j;
 517                         v[1] = '\0';
 518                         std::string mode_str = v;
 519                         std::string::size_type pos = modes.find(mode_str);
 520                         if (pos != std::string::npos)
 521                         {
 522                                 log(DEBUG,"all occurances of mode %c to be deleted...",(unsigned char)j);
 523                                 while (modes.find(mode_str) != std::string::npos)
 524                                         modes.erase(modes.find(mode_str),1);
 525                                 log(DEBUG,"New mode line: %s",modes.c_str());
 526                         }
 527                 }
 528         }
 529         return modes;
 530 }
 531
 532 void ModeParser::ProcessModes(char **parameters,userrec* user,chanrec *chan,int status, int pcnt, bool servermode, bool silent, bool local)
 533 {
 534         if (!parameters) {
 535                 log(DEFAULT,"*** BUG *** process_modes was given an invalid parameter");
 536                 return;
 537         }
 538
 539         char modelist[MAXBUF];
 540         char outlist[MAXBUF];
 541         char outstr[MAXBUF];
 542         char outpars[32][MAXBUF];
 543         int param = 2;
 544         int pc = 0;
 545         int ptr = 0;
 546         int mdir = 1;
 547         char* r = NULL;
 548         bool k_set = false, l_set = false, previously_set_l = false, previously_unset_l = false, previously_set_k = false, previously_unset_k = false;
 549
 550         if (pcnt < 2)
 551         {
 552                 return;
 553         }
 554
 555         int MOD_RESULT = 0;
 556
 557         if (IS_LOCAL(user))
 558         {
 559                 FOREACH_RESULT(I_OnAccessCheck,OnAccessCheck(user,NULL,chan,AC_GENERAL_MODE));
 560                 if (MOD_RESULT == ACR_DENY)
 561                         return;
 562         }
 563
 564         log(DEBUG,"process_modes: start: parameters=%d",pcnt);
 565
 566         strlcpy(modelist,parameters[1],MAXBUF); /* mode list, e.g. +oo-o *
 567                                                  * parameters[2] onwards are parameters for
 568                                                  * modes that require them :) */
 569         *outlist = '+';
 570         *(outlist+1) = 0;
 571         mdir = 1;
 572
 573         log(DEBUG,"process_modes: modelist: %s",modelist);
 574
 575         std::string tidied = this->CompressModes(modelist,true);
 576         strlcpy(modelist,tidied.c_str(),MAXBUF);
 577
 578         int len = tidied.length();
 579         while (modelist[len-1] == ' ')
 580                 modelist[--len] = '\0';
 581
 582         for (char* modechar = modelist; *modechar; ptr++, modechar++)
 583         {
 584                 r = NULL;
 585
 586                 {
 587                         switch (*modechar)
 588                         {
 589                                 case '-':
 590                                         if (mdir != 0)
 591                                         {
 592                                                 int t = strlen(outlist)-1;
 593                                                 if ((outlist[t] == '+') || (outlist[t] == '-'))
 594                                                 {
 595                                                         outlist[t] = '-';
 596                                                 }
 597                                                 else
 598                                                 {
 599                                                         strcat(outlist,"-");
 600                                                 }
 601                                         }
 602                                         mdir = 0;
 603
 604                                 break;
 605
 606                                 case '+':
 607                                         if (mdir != 1)
 608                                         {
 609                                                 int t = strlen(outlist)-1;
 610                                                 if ((outlist[t] == '+') || (outlist[t] == '-'))
 611                                                 {
 612                                                         outlist[t] = '+';
 613                                                 }
 614                                                 else
 615                                                 {
 616                                                         strcat(outlist,"+");
 617                                                 }
 618                                         }
 619                                         mdir = 1;
 620                                 break;
 621
 622                                 case 'o':
 623                                         log(DEBUG,"Ops");
 624                                         if ((param >= pcnt)) break;
 625                                         log(DEBUG,"Enough parameters left");
 626                                         if (mdir == 1)
 627                                         {
 628                                                 MOD_RESULT = 0;
 629                                                 FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'o', parameters[param], true, 1));
 630                                                 if (!MOD_RESULT)
 631                                                 {
 632                                                         log(DEBUG,"calling GiveOps");
 633                                                         r = GiveOps(user,parameters[param++],chan,status);
 634                                                 }
 635                                                 else param++;
 636                                         }
 637                                         else
 638                                         {
 639                                                 MOD_RESULT = 0;
 640                                                 FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'o', parameters[param], false, 1));
 641                                                 if (!MOD_RESULT)
 642                                                 {
 643                                                         log(DEBUG,"calling TakeOps");
 644                                                         r = TakeOps(user,parameters[param++],chan,status);
 645                                                 }
 646                                                 else param++;
 647                                         }
 648                                         if (r)
 649                                         {
 650                                                 strlcat(outlist,"o",MAXBUF);
 651                                                 strlcpy(outpars[pc++],r,MAXBUF);
 652                                         }
 653                                 break;
 654
 655                                 case 'h':
 656                                         if (((param >= pcnt)) || (!Config->AllowHalfop)) break;
 657                                         if (mdir == 1)
 658                                         {
 659                                                 MOD_RESULT = 0;
 660                                                 FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'h', parameters[param], true, 1));
 661                                                 if (!MOD_RESULT)
 662                                                 {
 663                                                         r = GiveHops(user,parameters[param++],chan,status);
 664                                                 }
 665                                                 else param++;
 666                                         }
 667                                         else
 668                                         {
 669                                                 MOD_RESULT = 0;
 670                                                 FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'h', parameters[param], false, 1));
 671                                                 if (!MOD_RESULT)
 672                                                 {
 673                                                         r = TakeHops(user,parameters[param++],chan,status);
 674                                                 }
 675                                                 else param++;
 676                                         }
 677                                         if (r)
 678                                         {
 679                                                 strlcat(outlist,"h",MAXBUF);
 680                                                 strlcpy(outpars[pc++],r,MAXBUF);
 681                                         }
 682                                 break;
 683
 684
 685                                 case 'v':
 686                                         if ((param >= pcnt)) break;
 687                                         if (mdir == 1)
 688                                         {
 689                                                 MOD_RESULT = 0;
 690                                                 FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'v', parameters[param], true, 1));
 691                                                 if (!MOD_RESULT)
 692                                                 {
 693                                                         r = GiveVoice(user,parameters[param++],chan,status);
 694                                                 }
 695                                                 else param++;
 696                                         }
 697                                         else
 698                                         {
 699                                                 MOD_RESULT = 0;
 700                                                 FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'v', parameters[param], false, 1));
 701                                                 if (!MOD_RESULT)
 702                                                 {
 703                                                         r = TakeVoice(user,parameters[param++],chan,status);
 704                                                 }
 705                                                 else param++;
 706                                         }
 707                                         if (r)
 708                                         {
 709                                                 strlcat(outlist,"v",MAXBUF);
 710                                                 strlcpy(outpars[pc++],r,MAXBUF);
 711                                         }
 712                                 break;
 713
 714                                 case 'b':
 715                                         if ((param >= pcnt)) break;
 716                                         if (mdir == 1)
 717                                         {
 718                                                 MOD_RESULT = 0;
 719                                                 FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'b', parameters[param], true, 1));
 720                                                 if (!MOD_RESULT)
 721                                                 {
 722                                                         r = AddBan(user,parameters[param++],chan,status);
 723                                                 }
 724                                                 else param++;
 725                                         }
 726                                         else
 727                                         {
 728                                                 MOD_RESULT = 0;
 729                                                 FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'b', parameters[param], false, 1));
 730                                                 if (!MOD_RESULT)
 731                                                 {
 732                                                         r = TakeBan(user,parameters[param++],chan,status);
 733                                                 }
 734                                                 else param++;
 735                                         }
 736                                         if (r)
 737                                         {
 738                                                 strlcat(outlist,"b",MAXBUF);
 739                                                 strlcpy(outpars[pc++],parameters[param-1],MAXBUF);
 740                                         }
 741                                 break;
 742
 743
 744                                 case 'k':
 745                                         if ((param >= pcnt))
 746                                                 break;
 747
 748                                         if (mdir == 1)
 749                                         {
 750                                                 if (k_set)
 751                                                         break;
 752
 753                                                 if (previously_unset_k)
 754                                                         break;
 755                                                 previously_set_k = true;
 756
 757                                                 if (!*chan->key)
 758                                                 {
 759                                                         MOD_RESULT = 0;
 760                                                         FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'k', parameters[param], true, 1));
 761                                                         if (!MOD_RESULT)
 762                                                         {
 763                                                                 strcat(outlist,"k");
 764                                                                 char key[MAXBUF];
 765                                                                 strlcpy(key,parameters[param++],32);
 766                                                                 strlcpy(outpars[pc++],key,MAXBUF);
 767                                                                 strlcpy(chan->key,key,MAXBUF);
 768                                                                 k_set = true;
 769                                                         }
 770                                                         else param++;
 771                                                 }
 772                                         }
 773                                         else
 774                                         {
 775                                                 /* checks on -k are case sensitive and only accurate to the
 776                                                    first 32 characters */
 777                                                 if (previously_set_k)
 778                                                         break;
 779                                                 previously_unset_k = true;
 780
 781                                                 char key[MAXBUF];
 782                                                 MOD_RESULT = 0;
 783                                                 FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'k', parameters[param], false, 1));
 784                                                 if (!MOD_RESULT)
 785                                                 {
 786                                                         strlcpy(key,parameters[param++],32);
 787                                                         /* only allow -k if correct key given */
 788                                                         if (!strcmp(chan->key,key))
 789                                                         {
 790                                                                 strlcat(outlist,"k",MAXBUF);
 791                                                                 strlcpy(chan->key,"",MAXBUF);
 792                                                                 strlcpy(outpars[pc++],key,MAXBUF);
 793                                                         }
 794                                                 }
 795                                                 else param++;
 796                                         }
 797                                 break;
 798
 799                                 case 'l':
 800                                         if (mdir == 0)
 801                                         {
 802                                                 if (previously_set_l)
 803                                                         break;
 804                                                 previously_unset_l = true;
 805                                                 MOD_RESULT = 0;
 806                                                 FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'l', "", false, 0));
 807                                                 if (!MOD_RESULT)
 808                                                 {
 809                                                         if (chan->limit)
 810                                                         {
 811                                                                 strcat(outlist,"l");
 812                                                                 chan->limit = 0;
 813                                                         }
 814                                                 }
 815                                         }
 816
 817                                         if ((param >= pcnt)) break;
 818                                         if (mdir == 1)
 819                                         {
 820                                                 if (l_set)
 821                                                         break;
 822                                                 if (previously_unset_l)
 823                                                         break;
 824                                                 previously_set_l = true;
 825                                                 bool invalid = false;
 826                                                 for (char* f = parameters[param]; *f; f++)
 827                                                 {
 828                                                         if ((*f < '0') || (*f > '9'))
 829                                                         {
 830                                                                 invalid = true;
 831                                                         }
 832                                                 }
 833                                                 /* If the limit is < 1, or the new limit is the current limit, dont allow */
 834                                                 if ((atoi(parameters[param]) < 1) || ((chan->limit > 0) && (atoi(parameters[param]) == chan->limit)))
 835                                                 {
 836                                                         invalid = true;
 837                                                 }
 838
 839                                                 if (invalid)
 840                                                         break;
 841
 842                                                 MOD_RESULT = 0;
 843                                                 FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'l', parameters[param], true, 1));
 844                                                 if (!MOD_RESULT)
 845                                                 {
 846
 847                                                         chan->limit = atoi(parameters[param]);
 848
 849                                                         // reported by mech: large values cause underflow
 850                                                         if (chan->limit < 0)
 851                                                                 chan->limit = 0x7FFF;
 852                                                 }
 853
 854                                                 if (chan->limit)
 855                                                 {
 856                                                         strlcat(outlist,"l",MAXBUF);
 857                                                         strlcpy(outpars[pc++],parameters[param++],MAXBUF);
 858                                                         l_set = true;
 859                                                 }
 860                                         }
 861                                 break;
 862
 863                                 case 'i':
 864                                         MOD_RESULT = 0;
 865                                         FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'i', "", mdir, 0));
 866                                         if (!MOD_RESULT)
 867                                         {
 868                                                 if (mdir)
 869                                                 {
 870                                                         if (!(chan->binarymodes & CM_INVITEONLY)) strlcat(outlist,"i",MAXBUF);
 871                                                         chan->binarymodes |= CM_INVITEONLY;
 872                                                 }
 873                                                 else
 874                                                 {
 875                                                         if (chan->binarymodes & CM_INVITEONLY) strlcat(outlist,"i",MAXBUF);
 876                                                         chan->binarymodes &= ~CM_INVITEONLY;
 877                                                 }
 878                                         }
 879                                 break;
 880
 881                                 case 't':
 882                                         MOD_RESULT = 0;
 883                                         FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 't', "", mdir, 0));
 884                                         if (!MOD_RESULT)
 885                                         {
 886                                                 if (mdir)
 887                                                 {
 888                                                         if (!(chan->binarymodes & CM_TOPICLOCK)) strlcat(outlist,"t",MAXBUF);
 889                                                         chan->binarymodes |= CM_TOPICLOCK;
 890                                                 }
 891                                                 else
 892                                                 {
 893                                                         if (chan->binarymodes & CM_TOPICLOCK) strlcat(outlist,"t",MAXBUF);
 894                                                         chan->binarymodes &= ~CM_TOPICLOCK;
 895                                                 }
 896                                         }
 897                                 break;
 898
 899                                 case 'n':
 900                                         MOD_RESULT = 0;
 901                                         FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'n', "", mdir, 0));
 902                                         if (!MOD_RESULT)
 903                                         {
 904                                                 if (mdir)
 905                                                 {
 906                                                         if (!(chan->binarymodes & CM_NOEXTERNAL)) strlcat(outlist,"n",MAXBUF);
 907                                                         chan->binarymodes |= CM_NOEXTERNAL;
 908                                                 }
 909                                                 else
 910                                                 {
 911                                                         if (chan->binarymodes & CM_NOEXTERNAL) strlcat(outlist,"n",MAXBUF);
 912                                                         chan->binarymodes &= ~CM_NOEXTERNAL;
 913                                                 }
 914                                         }
 915                                 break;
 916
 917                                 case 'm':
 918                                         MOD_RESULT = 0;
 919                                         FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'm', "", mdir, 0));
 920                                         if (!MOD_RESULT)
 921                                         {
 922                                                 if (mdir)
 923                                                 {
 924                                                         if (!(chan->binarymodes & CM_MODERATED)) strlcat(outlist,"m",MAXBUF);
 925                                                         chan->binarymodes |= CM_MODERATED;
 926                                                 }
 927                                                 else
 928                                                 {
 929                                                         if (chan->binarymodes & CM_MODERATED) strlcat(outlist,"m",MAXBUF);
 930                                                         chan->binarymodes &= ~CM_MODERATED;
 931                                                 }
 932                                         }
 933                                 break;
 934
 935                                 case 's':
 936                                         MOD_RESULT = 0;
 937                                         FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 's', "", mdir, 0));
 938                                         if (!MOD_RESULT)
 939                                         {
 940                                                 if (mdir)
 941                                                 {
 942                                                         if (!(chan->binarymodes & CM_SECRET)) strlcat(outlist,"s",MAXBUF);
 943                                                         chan->binarymodes |= CM_SECRET;
 944                                                         if (chan->binarymodes & CM_PRIVATE)
 945                                                         {
 946                                                                 chan->binarymodes &= ~CM_PRIVATE;
 947                                                                 if (mdir)
 948                                                                 {
 949                                                                         strlcat(outlist,"-p+",MAXBUF);
 950                                                                 }
 951                                                         }
 952                                                 }
 953                                                 else
 954                                                 {
 955                                                         if (chan->binarymodes & CM_SECRET) strlcat(outlist,"s",MAXBUF);
 956                                                         chan->binarymodes &= ~CM_SECRET;
 957                                                 }
 958                                         }
 959                                 break;
 960
 961                                 case 'p':
 962                                         MOD_RESULT = 0;
 963                                         FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'p', "", mdir, 0));
 964                                         if (!MOD_RESULT)
 965                                         {
 966                                                 if (mdir)
 967                                                 {
 968                                                         if (!(chan->binarymodes & CM_PRIVATE)) strlcat(outlist,"p",MAXBUF);
 969                                                         chan->binarymodes |= CM_PRIVATE;
 970                                                         if (chan->binarymodes & CM_SECRET)
 971                                                         {
 972                                                                 chan->binarymodes &= ~CM_SECRET;
 973                                                                 if (mdir)
 974                                                                 {
 975                                                                         strlcat(outlist,"-s+",MAXBUF);
 976                                                                 }
 977                                                         }
 978                                                 }
 979                                                 else
 980                                                 {
 981                                                         if (chan->binarymodes & CM_PRIVATE) strlcat(outlist,"p",MAXBUF);
 982                                                         chan->binarymodes &= ~CM_PRIVATE;
 983                                                 }
 984                                         }
 985                                 break;
 986
 987                                 default:
 988                                         log(DEBUG,"Preprocessing custom mode %c: modelist: %s",*modechar,chan->custom_modes);
 989                                         string_list p;
 990                                         p.clear();
 991                                         if (((!strchr(chan->custom_modes,*modechar)) && (!mdir)) || ((strchr(chan->custom_modes,*modechar)) && (mdir)))
 992                                         {
 993                                                 if (!ModeIsListMode(*modechar,MT_CHANNEL))
 994                                                 {
 995                                                         log(DEBUG,"Mode %c isnt set on %s but trying to remove!",*modechar,chan->name);
 996                                                         break;
 997                                                 }
 998                                         }
 999                                         if (ModeDefined(*modechar,MT_CHANNEL))
1000                                         {
1001                                                 log(DEBUG,"A module has claimed this mode");
1002                                                 if (param<pcnt)
1003                                                 {
1004                                                         if ((ModeDefinedOn(*modechar,MT_CHANNEL)>0) && (mdir))
1005                                                         {
1006                                                                 p.push_back(parameters[param]);
1007                                                         }
1008                                                         if ((ModeDefinedOff(*modechar,MT_CHANNEL)>0) && (!mdir))
1009                                                         {
1010                                                                 p.push_back(parameters[param]);
1011                                                         }
1012                                                 }
1013                                                 bool handled = false;
1014                                                 if (param>=pcnt)
1015                                                 {
1016                                                         // we're supposed to have a parameter, but none was given... so dont handle the mode.
1017                                                         if (((ModeDefinedOn(*modechar,MT_CHANNEL)>0) && (mdir)) || ((ModeDefinedOff(*modechar,MT_CHANNEL)>0) && (!mdir)))
1018                                                         {
1019                                                                 log(DEBUG,"Not enough parameters for module-mode %c",*modechar);
1020                                                                 handled = true;
1021                                                                 param++;
1022                                                         }
1023                                                 }
1024
1025                                                 // BIG ASS IDIOTIC CODER WARNING!
1026                                                 // Using OnRawMode on another modules mode's behavour
1027                                                 // will confuse the crap out of admins! just because you CAN
1028                                                 // do it, doesnt mean you SHOULD!
1029                                                 MOD_RESULT = 0;
1030                                                 std::string para = "";
1031                                                 if (p.size())
1032                                                         para = p[0];
1033                                                 FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, *modechar, para, mdir, pcnt));
1034                                                 if (!MOD_RESULT)
1035                                                 {
1036                                                         for (int i = 0; i <= MODCOUNT; i++)
1037                                                         {
1038                                                                 if (!handled)
1039                                                                 {
1040                                                                         int t = modules[i]->OnExtendedMode(user,chan,*modechar,MT_CHANNEL,mdir,p);
1041                                                                         if (t != 0)
1042                                                                         {
1043                                                                                 log(DEBUG,"OnExtendedMode returned nonzero for a module");
1044                                                                                 char app[] = {*modechar, 0};
1045                                                                                 if (ModeIsListMode(*modechar,MT_CHANNEL))
1046                                                                                 {
1047                                                                                         if (t == -1)
1048                                                                                         {
1049                                                                                                 //pc++;
1050                                                                                                 param++;
1051                                                                                         }
1052                                                                                         else
1053                                                                                         {
1054                                                                                                 if (ptr>0)
1055                                                                                                 {
1056                                                                                                         strlcat(outlist, app,MAXBUF);
1057                                                                                                 }
1058                                                                                                 strlcpy(outpars[pc++],parameters[param++],MAXBUF);
1059                                                                                         }
1060                                                                                 }
1061                                                                                 else
1062                                                                                 {
1063                                                                                         if (ptr>0)
1064                                                                                         {
1065                                                                                                 if ((modelist[ptr-1] == '+') || (modelist[ptr-1] == '-'))
1066                                                                                                 {
1067                                                                                                         strlcat(outlist, app,MAXBUF);
1068                                                                                                 }
1069                                                                                                 else if (!strchr(outlist,*modechar))
1070                                                                                                 {
1071                                                                                                         strlcat(outlist, app,MAXBUF);
1072                                                                                                 }
1073                                                                                         }
1074                                                                                         chan->SetCustomMode(*modechar,mdir);
1075                                                                                         // include parameters in output if mode has them
1076                                                                                         if ((ModeDefinedOn(*modechar,MT_CHANNEL)>0) && (mdir))
1077                                                                                         {
1078                                                                                                 chan->SetCustomModeParam(modelist[ptr],parameters[param],mdir);
1079                                                                                                 strlcpy(outpars[pc++],parameters[param++],MAXBUF);
1080                                                                                         }
1081                                                                                 }
1082                                                                                 // break, because only one module can handle the mode.
1083                                                                                 handled = true;
1084                                                                         }
1085                                                                 }
1086                                                         }
1087                                                 }
1088                                         }
1089                                         else
1090                                         {
1091                                                 WriteServ(user->fd,"472 %s %c :is unknown mode char to me",user->nick,*modechar);
1092                                         }
1093                                 break;
1094
1095                         }
1096                 }
1097         }
1098
1099         /* this ensures only the *valid* modes are sent out onto the network */
1100         int xt = strlen(outlist)-1;
1101         while ((outlist[xt] == '-') || (outlist[xt] == '+'))
1102         {
1103                 outlist[xt] = '\0';
1104                 xt = strlen(outlist)-1;
1105         }
1106         if (outlist[0])
1107         {
1108                 strlcpy(outstr,outlist,MAXBUF);
1109                 for (ptr = 0; ptr < pc; ptr++)
1110                 {
1111                         strlcat(outstr," ",MAXBUF);
1112                         strlcat(outstr,outpars[ptr],MAXBUF);
1113                 }
1114                 if (local)
1115                 {
1116                         log(DEBUG,"Local mode change");
1117                         WriteChannelLocal(chan, user, "MODE %s %s",chan->name,outstr);
1118                         FOREACH_MOD(I_OnMode,OnMode(user, chan, TYPE_CHANNEL, outstr));
1119                 }
1120                 else
1121                 {
1122                         if (servermode)
1123                         {
1124                                 if (!silent)
1125                                 {
1126                                         WriteChannelWithServ(Config->ServerName,chan,"MODE %s %s",chan->name,outstr);
1127                                 }
1128
1129                         }
1130                         else
1131                         {
1132                                 if (!silent)
1133                                 {
1134                                         WriteChannel(chan,user,"MODE %s %s",chan->name,outstr);
1135                                         FOREACH_MOD(I_OnMode,OnMode(user, chan, TYPE_CHANNEL, outstr));
1136                                 }
1137                         }
1138                 }
1139         }
1140 }
1141
1142 // based on sourcemodes, return true or false to determine if umode is a valid mode a user may set on themselves or others.
1143
1144 bool ModeParser::AllowedUmode(char umode, char* sourcemodes,bool adding,bool serveroverride)
1145 {
1146         log(DEBUG,"Allowed_umode: %c %s",umode,sourcemodes);
1147         // Servers can +o and -o arbitrarily
1148         if ((serveroverride == true) && (umode == 'o'))
1149         {
1150                 return true;
1151         }
1152         // RFC1459 specified modes
1153         if ((umode == 'w') || (umode == 's') || (umode == 'i'))
1154         {
1155                 log(DEBUG,"umode %c allowed by RFC1459 scemantics",umode);
1156                 return true;
1157         }
1158
1159         // user may not +o themselves or others, but an oper may de-oper other opers or themselves
1160         if ((strchr(sourcemodes,'o')) && (!adding))
1161         {
1162                 log(DEBUG,"umode %c allowed by RFC1459 scemantics",umode);
1163                 return true;
1164         }
1165         else if (umode == 'o')
1166         {
1167                 log(DEBUG,"umode %c allowed by RFC1459 scemantics",umode);
1168                 return false;
1169         }
1170
1171         // process any module-defined modes that need oper
1172         if ((ModeDefinedOper(umode,MT_CLIENT)) && (strchr(sourcemodes,'o')))
1173         {
1174                 log(DEBUG,"umode %c allowed by module handler (oper only mode)",umode);
1175                 return true;
1176         }
1177         else
1178         if (ModeDefined(umode,MT_CLIENT))
1179         {
1180                 // process any module-defined modes that don't need oper
1181                 log(DEBUG,"umode %c allowed by module handler (non-oper mode)",umode);
1182                 if ((ModeDefinedOper(umode,MT_CLIENT)) && (!strchr(sourcemodes,'o')))
1183                 {
1184                         // no, this mode needs oper, and this user 'aint got what it takes!
1185                         return false;
1186                 }
1187                 return true;
1188         }
1189
1190         // anything else - return false.
1191         log(DEBUG,"umode %c not known by any ruleset",umode);
1192         return false;
1193 }
1194
1195 bool ModeParser::ProcessModuleUmode(char umode, userrec* source, void* dest, bool adding)
1196 {
1197         userrec* s2;
1198         bool faked = false;
1199         if (!source)
1200         {
1201                 s2 = new userrec;
1202                 strlcpy(s2->nick,Config->ServerName,NICKMAX);
1203                 strlcpy(s2->modes,"o",52);
1204                 s2->fd = -1;
1205                 source = s2;
1206                 faked = true;
1207         }
1208         string_list p;
1209         p.clear();
1210         if (ModeDefined(umode,MT_CLIENT))
1211         {
1212                 for (int i = 0; i <= MODCOUNT; i++)
1213                 {
1214                         if (modules[i]->OnExtendedMode(source,(void*)dest,umode,MT_CLIENT,adding,p))
1215                         {
1216                                 log(DEBUG,"Module %s claims umode %c",Config->module_names[i].c_str(),umode);
1217                                 return true;
1218                         }
1219                 }
1220                 log(DEBUG,"No module claims umode %c",umode);
1221                 if (faked)
1222                 {
1223                         delete s2;
1224                         source = NULL;
1225                 }
1226                 return false;
1227         }
1228         else
1229         {
1230                 if (faked)
1231                 {
1232                         delete s2;
1233                         source = NULL;
1234                 }
1235                 return false;
1236         }
1237 }
1238
1239 void cmd_mode::Handle (char **parameters, int pcnt, userrec *user)
1240 {
1241         chanrec* Ptr;
1242         userrec* dest;
1243         int can_change;
1244         int direction = 1;
1245         char outpars[MAXBUF];
1246
1247         dest = Find(parameters[0]);
1248
1249         if (!user)
1250         {
1251                 return;
1252         }
1253
1254         if ((dest) && (pcnt == 1))
1255         {
1256                 WriteServ(user->fd,"221 %s :+%s",dest->nick,dest->modes);
1257                 return;
1258         }
1259
1260         if ((dest) && (pcnt > 1))
1261         {
1262                 std::string tidied = ServerInstance->ModeGrok->CompressModes(parameters[1],false);
1263                 parameters[1] = (char*)tidied.c_str();
1264
1265                 char dmodes[MAXBUF];
1266                 strlcpy(dmodes,dest->modes,52);
1267                 log(DEBUG,"pulled up dest user modes: %s",dmodes);
1268
1269                 can_change = 0;
1270                 if (user != dest)
1271                 {
1272                         if ((strchr(user->modes,'o')) || (is_uline(user->server)))
1273                         {
1274                                 can_change = 1;
1275                         }
1276                 }
1277                 else
1278                 {
1279                         can_change = 1;
1280                 }
1281                 if (!can_change)
1282                 {
1283                         WriteServ(user->fd,"482 %s :Can't change mode for other users",user->nick);
1284                         return;
1285                 }
1286
1287                 outpars[0] = '+';
1288                 outpars[1] = 0;
1289                 direction = 1;
1290
1291                 if ((parameters[1][0] != '+') && (parameters[1][0] != '-'))
1292                         return;
1293
1294                 for (unsigned int i = 0; i < strlen(parameters[1]); i++)
1295                 {
1296                         if (parameters[1][i] == ' ')
1297                                 continue;
1298                         if (parameters[1][i] == '+')
1299                         {
1300                                 if (direction != 1)
1301                                 {
1302                                         int t = strlen(outpars)-1;
1303                                         if ((outpars[t] == '+') || (outpars[t] == '-'))
1304                                         {
1305                                                 outpars[t] = '+';
1306                                         }
1307                                         else
1308                                         {
1309                                                 strcat(outpars,"+");
1310                                         }
1311                                 }
1312                                 direction = 1;
1313                         }
1314                         else
1315                         if (parameters[1][i] == '-')
1316                         {
1317                                 if (direction != 0)
1318                                 {
1319                                         int t = strlen(outpars)-1;
1320                                         if ((outpars[t] == '+') || (outpars[t] == '-'))
1321                                         {
1322                                                 outpars[t] = '-';
1323                                         }
1324                                         else
1325                                         {
1326                                                 strcat(outpars,"-");
1327                                         }
1328                                 }
1329                                 direction = 0;
1330                         }
1331                         else
1332                         {
1333                                 can_change = 0;
1334                                 if (strchr(user->modes,'o'))
1335                                 {
1336                                         can_change = 1;
1337                                 }
1338                                 else
1339                                 {
1340                                         if ((parameters[1][i] == 'i') || (parameters[1][i] == 'w') || (parameters[1][i] == 's') || (ServerInstance->ModeGrok->AllowedUmode(parameters[1][i],user->modes,direction,false)))
1341                                         {
1342                                                 can_change = 1;
1343                                         }
1344                                 }
1345                                 if (can_change)
1346                                 {
1347                                         if (direction == 1)
1348                                         {
1349                                                 if ((!strchr(dmodes,parameters[1][i])) && (ServerInstance->ModeGrok->AllowedUmode(parameters[1][i],user->modes,true,false)))
1350                                                 {
1351                                                         char umode = parameters[1][i];
1352                                                         if ((ServerInstance->ModeGrok->ProcessModuleUmode(umode, user, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
1353                                                         {
1354                                                                 int q = strlen(dmodes);
1355                                                                 int r = strlen(outpars);
1356                                                                 dmodes[q+1]='\0';
1357                                                                 dmodes[q] = parameters[1][i];
1358                                                                 outpars[r+1]='\0';
1359                                                                 outpars[r] = parameters[1][i];
1360                                                                 if (parameters[1][i] == 'o')
1361                                                                 {
1362                                                                         FOREACH_MOD(I_OnGlobalOper,OnGlobalOper(dest));
1363                                                                 }
1364                                                         }
1365                                                 }
1366                                         }
1367                                         else
1368                                         {
1369                                                 if ((ServerInstance->ModeGrok->AllowedUmode(parameters[1][i],user->modes,false,false)) && (strchr(dmodes,parameters[1][i])))
1370                                                 {
1371                                                         char umode = parameters[1][i];
1372                                                         if ((ServerInstance->ModeGrok->ProcessModuleUmode(umode, user, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
1373                                                         {
1374                                                                 unsigned int q = 0;
1375                                                                 char temp[MAXBUF];
1376                                                                 char moo[MAXBUF];
1377
1378                                                                 unsigned int r = strlen(outpars);
1379                                                                 outpars[r+1]='\0';
1380                                                                 outpars[r] = parameters[1][i];
1381
1382                                                                 *temp = 0;
1383                                                                 for (q = 0; q < strlen(dmodes); q++)
1384                                                                 {
1385                                                                         if (dmodes[q] != parameters[1][i])
1386                                                                         {
1387                                                                                 moo[0] = dmodes[q];
1388                                                                                 moo[1] = '\0';
1389                                                                                 strlcat(temp,moo,MAXBUF);
1390                                                                         }
1391                                                                 }
1392                                                                 strlcpy(dmodes,temp,52);
1393
1394                                                                 if (umode == 'o')
1395                                                                 {
1396                                                                         *dest->oper = 0;
1397                                                                         DeleteOper(dest);
1398                                                                 }
1399                                                         }
1400                                                 }
1401                                         }
1402                                 }
1403                         }
1404                 }
1405                 if (outpars[0])
1406                 {
1407                         char b[MAXBUF];
1408                         strlcpy(b,"",MAXBUF);
1409                         unsigned int z = 0;
1410                         unsigned int i = 0;
1411                         while (i < strlen (outpars))
1412                         {
1413                                 b[z++] = outpars[i++];
1414                                 b[z] = '\0';
1415                                 if (i<strlen(outpars)-1)
1416                                 {
1417                                         if (((outpars[i] == '-') || (outpars[i] == '+')) && ((outpars[i+1] == '-') || (outpars[i+1] == '+')))
1418                                         {
1419                                                 // someones playing silly buggers and trying
1420                                                 // to put a +- or -+ into the line...
1421                                                 i++;
1422                                         }
1423                                 }
1424                                 if (i == strlen(outpars)-1)
1425                                 {
1426                                         if ((outpars[i] == '-') || (outpars[i] == '+'))
1427                                         {
1428                                                 i++;
1429                                         }
1430                                 }
1431                         }
1432
1433                         z = strlen(b)-1;
1434                         if ((b[z] == '-') || (b[z] == '+'))
1435                                 b[z] = '\0';
1436
1437                         if ((!b[0]) || (!strcmp(b,"+")) || (!strcmp(b,"-")))
1438                                 return;
1439
1440                         if (strcmp(b,""))
1441                         {
1442                                 WriteTo(user, dest, "MODE %s :%s", dest->nick, b);
1443                                 FOREACH_MOD(I_OnMode,OnMode(user, dest, TYPE_USER, b));
1444                         }
1445
1446                         if (strlen(dmodes)>MAXMODES)
1447                         {
1448                                 dmodes[MAXMODES-1] = '\0';
1449                         }
1450                         log(DEBUG,"Stripped mode line");
1451                         log(DEBUG,"Line dest is now %s",dmodes);
1452                         strlcpy(dest->modes,dmodes,52);
1453
1454                 }
1455
1456                 return;
1457         }
1458
1459         Ptr = FindChan(parameters[0]);
1460         if (Ptr)
1461         {
1462                 if (pcnt == 1)
1463                 {
1464                         /* just /modes #channel */
1465                         WriteServ(user->fd,"324 %s %s +%s",user->nick, Ptr->name, chanmodes(Ptr,has_channel(user,Ptr)));
1466                         WriteServ(user->fd,"329 %s %s %d", user->nick, Ptr->name, Ptr->created);
1467                         return;
1468                 }
1469                 else
1470                 if (pcnt == 2)
1471                 {
1472                         char* mode = parameters[1];
1473                         if (*mode == '+')
1474                                 mode++;
1475                         int MOD_RESULT = 0;
1476                         FOREACH_RESULT(I_OnRawMode,OnRawMode(user, Ptr, *mode, "", false, 0));
1477                         if (!MOD_RESULT)
1478                         {
1479                                 if (*mode == 'b')
1480                                 {
1481
1482                                         for (BanList::iterator i = Ptr->bans.begin(); i != Ptr->bans.end(); i++)
1483                                         {
1484                                                 WriteServ(user->fd,"367 %s %s %s %s %d",user->nick, Ptr->name, i->data, i->set_by, i->set_time);
1485                                         }
1486                                         WriteServ(user->fd,"368 %s %s :End of channel ban list",user->nick, Ptr->name);
1487                                         return;
1488                                 }
1489                                 if ((ModeDefined(*mode,MT_CHANNEL)) && (ModeIsListMode(*mode,MT_CHANNEL)))
1490                                 {
1491                                         // list of items for an extmode
1492                                         log(DEBUG,"Calling OnSendList for all modules, list output for mode %c",*mode);
1493                                         FOREACH_MOD(I_OnSendList,OnSendList(user,Ptr,*mode));
1494                                         return;
1495                                 }
1496                         }
1497                 }
1498
1499                 if (((Ptr) && (!has_channel(user,Ptr))) && (!is_uline(user->server)) && (IS_LOCAL(user)))
1500                 {
1501                         WriteServ(user->fd,"442 %s %s :You're not on that channel!",user->nick, Ptr->name);
1502                         return;
1503                 }
1504
1505                 if (Ptr)
1506                 {
1507                         int MOD_RESULT = 0;
1508                         FOREACH_RESULT(I_OnAccessCheck,OnAccessCheck(user,NULL,Ptr,AC_GENERAL_MODE));
1509
1510                         if (MOD_RESULT == ACR_DENY)
1511                                 return;
1512                         if (MOD_RESULT == ACR_DEFAULT)
1513                         {
1514                                 if ((cstatus(user,Ptr) < STATUS_HOP) && (IS_LOCAL(user)))
1515                                 {
1516                                         WriteServ(user->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel",user->nick, Ptr->name);
1517                                         return;
1518                                 }
1519                         }
1520
1521                         ServerInstance->ModeGrok->ProcessModes(parameters,user,Ptr,cstatus(user,Ptr),pcnt,false,false,false);
1522                 }
1523         }
1524         else
1525         {
1526                 WriteServ(user->fd,"401 %s %s :No such nick/channel",user->nick, parameters[0]);
1527         }
1528 }
1529
1530
1531
1532
1533 void ModeParser::ServerMode(char **parameters, int pcnt, userrec *user)
1534 {
1535         chanrec* Ptr;
1536         userrec* dest;
1537         int can_change;
1538         int direction = 1;
1539         char outpars[MAXBUF];
1540
1541         dest = Find(parameters[0]);
1542
1543         // fix: ChroNiCk found this - we cant use this as debug if its null!
1544         if (dest)
1545         {
1546                 log(DEBUG,"server_mode on %s",dest->nick);
1547         }
1548
1549         if ((dest) && (pcnt > 1))
1550         {
1551                 std::string tidied = ServerInstance->ModeGrok->CompressModes(parameters[1],false);
1552                 parameters[1] = (char*)tidied.c_str();
1553
1554                 char dmodes[MAXBUF];
1555                 strlcpy(dmodes,dest->modes,52);
1556
1557                 outpars[0] = '+';
1558                 outpars[1] = 0;
1559                 direction = 1;
1560
1561                 if ((parameters[1][0] != '+') && (parameters[1][0] != '-'))
1562                         return;
1563
1564                 for (unsigned int i = 0; i < strlen(parameters[1]); i++)
1565                 {
1566                         if (parameters[1][i] == ' ')
1567                                 continue;
1568                         if (parameters[1][i] == '+')
1569                         {
1570                                 if (direction != 1)
1571                                 {
1572                                         int t = strlen(outpars)-1;
1573                                         if ((outpars[t] == '+') || (outpars[t] == '-'))
1574                                         {
1575                                                 outpars[t] = '+';
1576                                         }
1577                                         else
1578                                         {
1579                                                 strcat(outpars,"+");
1580                                         }
1581                                 }
1582                                 direction = 1;
1583                         }
1584                         else
1585                         if (parameters[1][i] == '-')
1586                         {
1587                                 if (direction != 0)
1588                                 {
1589                                         int t = strlen(outpars)-1;
1590                                         if ((outpars[t] == '+') || (outpars[t] == '-'))
1591                                         {
1592                                                 outpars[t] = '-';
1593                                         }
1594                                         else
1595                                         {
1596                                                 strcat(outpars,"-");
1597                                         }
1598                                 }
1599                                 direction = 0;
1600                         }
1601                         else
1602                         {
1603                                 log(DEBUG,"begin mode processing entry");
1604                                 can_change = 1;
1605                                 if (can_change)
1606                                 {
1607                                         if (direction == 1)
1608                                         {
1609                                                 log(DEBUG,"umode %c being added",parameters[1][i]);
1610                                                 if ((!strchr(dmodes,parameters[1][i])) && (ServerInstance->ModeGrok->AllowedUmode(parameters[1][i],user->modes,true,true)))
1611                                                 {
1612                                                         char umode = parameters[1][i];
1613                                                         log(DEBUG,"umode %c is an allowed umode",umode);
1614                                                         if ((ServerInstance->ModeGrok->ProcessModuleUmode(umode, user, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
1615                                                         {
1616                                                                 int v1 = strlen(dmodes);
1617                                                                 int v2 = strlen(outpars);
1618                                                                 dmodes[v1+1]='\0';
1619                                                                 dmodes[v1] = parameters[1][i];
1620                                                                 outpars[v2+1]='\0';
1621                                                                 outpars[v2] = parameters[1][i];
1622                                                         }
1623                                                 }
1624                                         }
1625                                         else
1626                                         {
1627                                                 // can only remove a mode they already have
1628                                                 log(DEBUG,"umode %c being removed",parameters[1][i]);
1629                                                 if ((ServerInstance->ModeGrok->AllowedUmode(parameters[1][i],user->modes,false,true)) && (strchr(dmodes,parameters[1][i])))
1630                                                 {
1631                                                         char umode = parameters[1][i];
1632                                                         log(DEBUG,"umode %c is an allowed umode",umode);
1633                                                         if ((ServerInstance->ModeGrok->ProcessModuleUmode(umode, user, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
1634                                                         {
1635                                                                 unsigned int q = 0;
1636                                                                 char temp[MAXBUF];
1637                                                                 char moo[MAXBUF];
1638
1639                                                                 unsigned int v1 = strlen(outpars);
1640                                                                 outpars[v1+1]='\0';
1641                                                                 outpars[v1] = parameters[1][i];
1642                                                                 *temp = 0;
1643                                                                 for (q = 0; q < strlen(dmodes); q++)
1644                                                                 {
1645                                                                         if (dmodes[q] != parameters[1][i])
1646                                                                         {
1647                                                                                 moo[0] = dmodes[q];
1648                                                                                 moo[1] = '\0';
1649                                                                                 strlcat(temp,moo,MAXBUF);
1650                                                                         }
1651                                                                 }
1652                                                                 strlcpy(dmodes,temp,52);
1653                                                         }
1654                                                 }
1655                                         }
1656                                 }
1657                         }
1658                 }
1659                 if (outpars[0])
1660                 {
1661                         char b[MAXBUF];
1662                         strlcpy(b,"",MAXBUF);
1663                         unsigned int z = 0;
1664                         unsigned int i = 0;
1665                         while (i < strlen (outpars))
1666                         {
1667                                 b[z++] = outpars[i++];
1668                                 b[z] = '\0';
1669                                 if (i<strlen(outpars)-1)
1670                                 {
1671                                         if (((outpars[i] == '-') || (outpars[i] == '+')) && ((outpars[i+1] == '-') || (outpars[i+1] == '+')))
1672                                         {
1673                                                 // someones playing silly buggers and trying
1674                                                 // to put a +- or -+ into the line...
1675                                                 i++;
1676                                         }
1677                                 }
1678                                 if (i == strlen(outpars)-1)
1679                                 {
1680                                         if ((outpars[i] == '-') || (outpars[i] == '+'))
1681                                         {
1682                                                 i++;
1683                                         }
1684                                 }
1685                         }
1686
1687                         z = strlen(b)-1;
1688                         if ((b[z] == '-') || (b[z] == '+'))
1689                                 b[z] = '\0';
1690
1691                         if ((!b[0]) || (!strcmp(b,"+")) || (!strcmp(b,"-")))
1692                                 return;
1693
1694                         if (strcmp(b,""))
1695                         {
1696                                 WriteTo(user, dest, "MODE %s :%s", dest->nick, b);
1697                                 FOREACH_MOD(I_OnMode,OnMode(user, dest, TYPE_USER, b));
1698                         }
1699
1700                         if (strlen(dmodes)>MAXMODES)
1701                         {
1702                                 dmodes[MAXMODES-1] = '\0';
1703                         }
1704                         log(DEBUG,"Stripped mode line");
1705                         log(DEBUG,"Line dest is now %s",dmodes);
1706                         strlcpy(dest->modes,dmodes,MAXMODES);
1707
1708                 }
1709
1710                 return;
1711         }
1712
1713         Ptr = FindChan(parameters[0]);
1714         if (Ptr)
1715         {
1716                 ServerInstance->ModeGrok->ProcessModes(parameters,user,Ptr,STATUS_OP,pcnt,true,false,false);
1717         }
1718         else
1719         {
1720                 WriteServ(user->fd,"401 %s %s :No such nick/channel",user->nick, parameters[0]);
1721         }
1722 }