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