src/mode.cpp

   1 /*       +------------------------------------+
   2  *       | Inspire Internet Relay Chat Daemon |
   3  *       +------------------------------------+
   4  *
   5  *  Inspire is copyright (C) 2002-2004 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))
  62         {
  63                 log(DEFAULT,"*** BUG *** GiveOps was given an invalid parameter");
  64                 return NULL;
  65         }
  66
  67         if (!isnick(dest))
  68         {
  69                 log(DEFAULT,"the target nickname given to GiveOps was invalid");
  70                 WriteServ(user->fd,"401 %s %s :No such nick/channel",user->nick, dest);
  71                 return NULL;
  72         }
  73         d = Find(dest);
  74         if (!d)
  75         {
  76                 log(DEFAULT,"the target nickname given to GiveOps couldnt be found");
  77                 WriteServ(user->fd,"401 %s %s :No such nick/channel",user->nick, dest);
  78                 return NULL;
  79         }
  80         else
  81         {
  82
  83                 int MOD_RESULT = 0;
  84                 FOREACH_RESULT(OnAccessCheck(user,d,chan,AC_OP));
  85
  86                 if (MOD_RESULT == ACR_DENY)
  87                         return NULL;
  88                 if (MOD_RESULT == ACR_DEFAULT)
  89                 {
  90                         if ((status < STATUS_OP) && (!is_uline(user->server)))
  91                         {
  92                                 log(DEBUG,"%s cant give ops to %s because they nave status %d and needs %d",user->nick,dest,status,STATUS_OP);
  93                                 WriteServ(user->fd,"482 %s %s :You're not a channel operator",user->nick, chan->name);
  94                                 return NULL;
  95                         }
  96                 }
  97
  98
  99                 for (unsigned int i = 0; i < d->chans.size(); i++)
 100                 {
 101                         if ((d->chans[i].channel != NULL) && (chan != NULL))
 102                         if (!strcasecmp(d->chans[i].channel->name,chan->name))
 103                         {
 104                         if (d->chans[i].uc_modes & UCMODE_OP)
 105                                 {
 106                                         /* mode already set on user, dont allow multiple */
 107                                         log(DEFAULT,"The target user given to GiveOps was already opped on the channel");
 108                                         return NULL;
 109                                 }
 110                                 d->chans[i].uc_modes = d->chans[i].uc_modes | UCMODE_OP;
 111                                 log(DEBUG,"gave ops: %s %s",d->chans[i].channel->name,d->nick);
 112                                 return d->nick;
 113                         }
 114                 }
 115                 log(DEFAULT,"The target channel given to GiveOps was not in the users mode list");
 116         }
 117         return NULL;
 118 }
 119
 120 char* ModeParser::GiveHops(userrec *user,char *dest,chanrec *chan,int status)
 121 {
 122         userrec *d;
 123
 124         if ((!user) || (!dest) || (!chan))
 125         {
 126                 log(DEFAULT,"*** BUG *** GiveHops was given an invalid parameter");
 127                 return NULL;
 128         }
 129
 130         d = Find(dest);
 131         if (!isnick(dest))
 132         {
 133                 WriteServ(user->fd,"401 %s %s :No such nick/channel",user->nick, dest);
 134                 return NULL;
 135         }
 136         if (!d)
 137         {
 138                 WriteServ(user->fd,"401 %s %s :No such nick/channel",user->nick, dest);
 139                 return NULL;
 140         }
 141         else
 142         {
 143                 int MOD_RESULT = 0;
 144                 FOREACH_RESULT(OnAccessCheck(user,d,chan,AC_HALFOP));
 145
 146                 if (MOD_RESULT == ACR_DENY)
 147                         return NULL;
 148                 if (MOD_RESULT == ACR_DEFAULT)
 149                 {
 150                         if ((status < STATUS_OP) && (!is_uline(user->server)))
 151                         {
 152                                 WriteServ(user->fd,"482 %s %s :You're not a channel operator",user->nick, chan->name);
 153                                 return NULL;
 154                         }
 155                 }
 156
 157                 for (unsigned int i = 0; i < d->chans.size(); i++)
 158                 {
 159                         if ((d->chans[i].channel != NULL) && (chan != NULL))
 160                         if (!strcasecmp(d->chans[i].channel->name,chan->name))
 161                         {
 162                                 if (d->chans[i].uc_modes & UCMODE_HOP)
 163                                 {
 164                                         /* mode already set on user, dont allow multiple */
 165                                         return NULL;
 166                                 }
 167                                 d->chans[i].uc_modes = d->chans[i].uc_modes | UCMODE_HOP;
 168                                 log(DEBUG,"gave h-ops: %s %s",d->chans[i].channel->name,d->nick);
 169                                 return d->nick;
 170                         }
 171                 }
 172         }
 173         return NULL;
 174 }
 175
 176 char* ModeParser::GiveVoice(userrec *user,char *dest,chanrec *chan,int status)
 177 {
 178         userrec *d;
 179
 180         if ((!user) || (!dest) || (!chan))
 181         {
 182                 log(DEFAULT,"*** BUG *** GiveVoice was given an invalid parameter");
 183                 return NULL;
 184         }
 185
 186         d = Find(dest);
 187         if (!isnick(dest))
 188         {
 189                 WriteServ(user->fd,"401 %s %s :No such nick/channel",user->nick, dest);
 190                 return NULL;
 191         }
 192         if (!d)
 193         {
 194                 WriteServ(user->fd,"401 %s %s :No such nick/channel",user->nick, dest);
 195                 return NULL;
 196         }
 197         else
 198         {
 199                 int MOD_RESULT = 0;
 200                 FOREACH_RESULT(OnAccessCheck(user,d,chan,AC_VOICE));
 201
 202                 if (MOD_RESULT == ACR_DENY)
 203                         return NULL;
 204                 if (MOD_RESULT == ACR_DEFAULT)
 205                 {
 206                         if ((status < STATUS_HOP) && (!is_uline(user->server)))
 207                         {
 208                                 WriteServ(user->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel",user->nick, chan->name);
 209                                 return NULL;
 210                         }
 211                 }
 212
 213                 for (unsigned int i = 0; i < d->chans.size(); i++)
 214                 {
 215                         if ((d->chans[i].channel != NULL) && (chan != NULL))
 216                         if (!strcasecmp(d->chans[i].channel->name,chan->name))
 217                         {
 218                                 if (d->chans[i].uc_modes & UCMODE_VOICE)
 219                                 {
 220                                         /* mode already set on user, dont allow multiple */
 221                                         return NULL;
 222                                 }
 223                                 d->chans[i].uc_modes = d->chans[i].uc_modes | UCMODE_VOICE;
 224                                 log(DEBUG,"gave voice: %s %s",d->chans[i].channel->name,d->nick);
 225                                 return d->nick;
 226                         }
 227                 }
 228         }
 229         return NULL;
 230 }
 231
 232 char* ModeParser::TakeOps(userrec *user,char *dest,chanrec *chan,int status)
 233 {
 234         userrec *d;
 235
 236         if ((!user) || (!dest) || (!chan))
 237         {
 238                 log(DEFAULT,"*** BUG *** TakeOps was given an invalid parameter");
 239                 return NULL;
 240         }
 241
 242         d = Find(dest);
 243         if (!isnick(dest))
 244         {
 245                 log(DEBUG,"TakeOps was given an invalid target nickname of %s",dest);
 246                 WriteServ(user->fd,"401 %s %s :No such nick/channel",user->nick, dest);
 247                 return NULL;
 248         }
 249         if (!d)
 250         {
 251                 log(DEBUG,"TakeOps couldnt resolve the target nickname: %s",dest);
 252                 WriteServ(user->fd,"401 %s %s :No such nick/channel",user->nick, dest);
 253                 return NULL;
 254         }
 255         else
 256         {
 257                 int MOD_RESULT = 0;
 258                 FOREACH_RESULT(OnAccessCheck(user,d,chan,AC_DEOP));
 259
 260                 if (MOD_RESULT == ACR_DENY)
 261                         return NULL;
 262                 if (MOD_RESULT == ACR_DEFAULT)
 263                 {
 264                         if ((status < STATUS_OP) && (!is_uline(user->server)))
 265                         {
 266                                 WriteServ(user->fd,"482 %s %s :You are not a channel operator",user->nick, chan->name);
 267                                 return NULL;
 268                         }
 269                 }
 270
 271                 for (unsigned int i = 0; i < d->chans.size(); i++)
 272                 {
 273                         if ((d->chans[i].channel != NULL) && (chan != NULL))
 274                         if (!strcasecmp(d->chans[i].channel->name,chan->name))
 275                         {
 276                                 if ((d->chans[i].uc_modes & UCMODE_OP) == 0)
 277                                 {
 278                                         /* mode already set on user, dont allow multiple */
 279                                         return NULL;
 280                                 }
 281                                 d->chans[i].uc_modes ^= UCMODE_OP;
 282                                 log(DEBUG,"took ops: %s %s",d->chans[i].channel->name,d->nick);
 283                                 return d->nick;
 284                         }
 285                 }
 286                 log(DEBUG,"TakeOps couldnt locate the target channel in the target users list");
 287         }
 288         return NULL;
 289 }
 290
 291 char* ModeParser::TakeHops(userrec *user,char *dest,chanrec *chan,int status)
 292 {
 293         userrec *d;
 294
 295         if ((!user) || (!dest) || (!chan))
 296         {
 297                 log(DEFAULT,"*** BUG *** TakeHops was given an invalid parameter");
 298                 return NULL;
 299         }
 300
 301         d = Find(dest);
 302         if (!isnick(dest))
 303         {
 304                 WriteServ(user->fd,"401 %s %s :No such nick/channel",user->nick, dest);
 305                 return NULL;
 306         }
 307         if (!d)
 308         {
 309                 WriteServ(user->fd,"401 %s %s :No such nick/channel",user->nick, dest);
 310                 return NULL;
 311         }
 312         else
 313         {
 314                 int MOD_RESULT = 0;
 315                 FOREACH_RESULT(OnAccessCheck(user,d,chan,AC_DEHALFOP));
 316
 317                 if (MOD_RESULT == ACR_DENY)
 318                         return NULL;
 319                 if (MOD_RESULT == ACR_DEFAULT)
 320                 {
 321                         if ((status < STATUS_OP) && (!is_uline(user->server)))
 322                         {
 323                                 WriteServ(user->fd,"482 %s %s :You are not a channel operator",user->nick, chan->name);
 324                                 return NULL;
 325                         }
 326                 }
 327
 328                 for (unsigned int i = 0; i < d->chans.size(); i++)
 329                 {
 330                         if ((d->chans[i].channel != NULL) && (chan != NULL))
 331                         if (!strcasecmp(d->chans[i].channel->name,chan->name))
 332                         {
 333                                 if ((d->chans[i].uc_modes & UCMODE_HOP) == 0)
 334                                 {
 335                                         /* mode already set on user, dont allow multiple */
 336                                         return NULL;
 337                                 }
 338                                 d->chans[i].uc_modes ^= UCMODE_HOP;
 339                                 log(DEBUG,"took h-ops: %s %s",d->chans[i].channel->name,d->nick);
 340                                 return d->nick;
 341                         }
 342                 }
 343         }
 344         return NULL;
 345 }
 346
 347 char* ModeParser::TakeVoice(userrec *user,char *dest,chanrec *chan,int status)
 348 {
 349         userrec *d;
 350
 351         if ((!user) || (!dest) || (!chan))
 352         {
 353                 log(DEFAULT,"*** BUG *** TakeVoice was given an invalid parameter");
 354                 return NULL;
 355         }
 356
 357         d = Find(dest);
 358         if (!isnick(dest))
 359         {
 360                 WriteServ(user->fd,"401 %s %s :No such nick/channel",user->nick, dest);
 361                 return NULL;
 362         }
 363         if (!d)
 364         {
 365                 WriteServ(user->fd,"401 %s %s :No such nick/channel",user->nick, dest);
 366                 return NULL;
 367         }
 368         else
 369         {
 370                 int MOD_RESULT = 0;
 371                 FOREACH_RESULT(OnAccessCheck(user,d,chan,AC_DEVOICE));
 372
 373                 if (MOD_RESULT == ACR_DENY)
 374                         return NULL;
 375                 if (MOD_RESULT == ACR_DEFAULT)
 376                 {
 377                         if ((status < STATUS_HOP) && (!is_uline(user->server)))
 378                         {
 379                                 WriteServ(user->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel",user->nick, chan->name);
 380                                 return NULL;
 381                         }
 382                 }
 383
 384                 for (unsigned int i = 0; i < d->chans.size(); i++)
 385                 {
 386                         if ((d->chans[i].channel != NULL) && (chan != NULL))
 387                         if (!strcasecmp(d->chans[i].channel->name,chan->name))
 388                         {
 389                                 if ((d->chans[i].uc_modes & UCMODE_VOICE) == 0)
 390                                 {
 391                                         /* mode already set on user, dont allow multiple */
 392                                         return NULL;
 393                                 }
 394                                 d->chans[i].uc_modes ^= UCMODE_VOICE;
 395                                 log(DEBUG,"took voice: %s %s",d->chans[i].channel->name,d->nick);
 396                                 return d->nick;
 397                         }
 398                 }
 399         }
 400         return NULL;
 401 }
 402
 403 char* ModeParser::AddBan(userrec *user,char *dest,chanrec *chan,int status)
 404 {
 405         if ((!user) || (!dest) || (!chan)) {
 406                 log(DEFAULT,"*** BUG *** AddBan was given an invalid parameter");
 407                 return NULL;
 408         }
 409
 410         BanItem b;
 411         if ((!user) || (!dest) || (!chan))
 412                 return NULL;
 413         unsigned int l = strlen(dest);
 414         if (strchr(dest,'!')==0)
 415                 return NULL;
 416         if (strchr(dest,'@')==0)
 417                 return NULL;
 418         for (unsigned int i = 0; i < l; i++)
 419                 if (dest[i] < 32)
 420                         return NULL;
 421         for (unsigned int i = 0; i < l; i++)
 422                 if (dest[i] > 126)
 423                         return NULL;
 424         int c = 0;
 425         for (unsigned int i = 0; i < l; i++)
 426                 if (dest[i] == '!')
 427                         c++;
 428         if (c>1)
 429                 return NULL;
 430         c = 0;
 431         for (unsigned int i = 0; i < l; i++)
 432                 if (dest[i] == '@')
 433                         c++;
 434         if (c>1)
 435                 return NULL;
 436
 437         long maxbans = GetMaxBans(chan->name);
 438         if ((unsigned)chan->bans.size() > (unsigned)maxbans)
 439         {
 440                 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);
 441                 return NULL;
 442         }
 443
 444         log(DEBUG,"AddBan: %s %s",chan->name,user->nick);
 445
 446         int MOD_RESULT = 0;
 447         FOREACH_RESULT(OnAddBan(user,chan,dest));
 448         if (MOD_RESULT)
 449                 return NULL;
 450
 451         TidyBan(dest);
 452         for (BanList::iterator i = chan->bans.begin(); i != chan->bans.end(); i++)
 453         {
 454                 if (!strcasecmp(i->data,dest))
 455                 {
 456                         // dont allow a user to set the same ban twice
 457                         return NULL;
 458                 }
 459         }
 460
 461         b.set_time = TIME;
 462         strncpy(b.data,dest,MAXBUF);
 463         strncpy(b.set_by,user->nick,NICKMAX);
 464         chan->bans.push_back(b);
 465         return dest;
 466 }
 467
 468 char* ModeParser::TakeBan(userrec *user,char *dest,chanrec *chan,int status)
 469 {
 470         if ((!user) || (!dest) || (!chan)) {
 471                 log(DEFAULT,"*** BUG *** TakeBan was given an invalid parameter");
 472                 return 0;
 473         }
 474
 475         log(DEBUG,"del_ban: %s %s",chan->name,user->nick);
 476         for (BanList::iterator i = chan->bans.begin(); i != chan->bans.end(); i++)
 477         {
 478                 if (!strcasecmp(i->data,dest))
 479                 {
 480                         int MOD_RESULT = 0;
 481                         FOREACH_RESULT(OnDelBan(user,chan,dest));
 482                         if (MOD_RESULT)
 483                                 return NULL;
 484                         chan->bans.erase(i);
 485                         return dest;
 486                 }
 487         }
 488         return NULL;
 489 }
 490
 491 // tidies up redundant modes, e.g. +nt-nt+i becomes +-+i,
 492 // a section further down the chain tidies up the +-+- crap.
 493 std::string ModeParser::CompressModes(std::string modes,bool channelmodes)
 494 {
 495         int counts[127];
 496         bool active[127];
 497         memset(counts,0,sizeof(counts));
 498         memset(active,0,sizeof(active));
 499         for (unsigned int i = 0; i < modes.length(); i++)
 500         {
 501                 if ((modes[i] == '+') || (modes[i] == '-'))
 502                         continue;
 503                 if (channelmodes)
 504                 {
 505                         if ((strchr("itnmsp",modes[i])) || ((ModeDefined(modes[i],MT_CHANNEL)) && (ModeDefinedOn(modes[i],MT_CHANNEL)==0) && (ModeDefinedOff(modes[i],MT_CHANNEL)==0)))
 506                         {
 507                                 log(DEBUG,"Tidy mode %c",modes[i]);
 508                                 counts[(unsigned int)modes[i]]++;
 509                                 active[(unsigned int)modes[i]] = true;
 510                         }
 511                 }
 512                 else
 513                 {
 514                         log(DEBUG,"Tidy mode %c",modes[i]);
 515                         counts[(unsigned int)modes[i]]++;
 516                         active[(unsigned int)modes[i]] = true;
 517                 }
 518         }
 519         for (int j = 65; j < 127; j++)
 520         {
 521                 if ((counts[j] > 1) && (active[j] == true))
 522                 {
 523                         static char v[2];
 524                         v[0] = (unsigned char)j;
 525                         v[1] = '\0';
 526                         std::string mode_str = v;
 527                         std::string::size_type pos = modes.find(mode_str);
 528                         if (pos != std::string::npos)
 529                         {
 530                                 log(DEBUG,"all occurances of mode %c to be deleted...",(unsigned char)j);
 531                                 while (modes.find(mode_str) != std::string::npos)
 532                                         modes.erase(modes.find(mode_str),1);
 533                                 log(DEBUG,"New mode line: %s",modes.c_str());
 534                         }
 535                 }
 536         }
 537         return modes;
 538 }
 539
 540 void ModeParser::ProcessModes(char **parameters,userrec* user,chanrec *chan,int status, int pcnt, bool servermode, bool silent, bool local)
 541 {
 542         if (!parameters) {
 543                 log(DEFAULT,"*** BUG *** process_modes was given an invalid parameter");
 544                 return;
 545         }
 546
 547         char modelist[MAXBUF];
 548         char outlist[MAXBUF];
 549         char outstr[MAXBUF];
 550         char outpars[32][MAXBUF];
 551         int param = 2;
 552         int pc = 0;
 553         int ptr = 0;
 554         int mdir = 1;
 555         char* r = NULL;
 556         bool k_set = false, l_set = false, previously_set_l = false, previously_unset_l = false, previously_set_k = false, previously_unset_k = false;
 557
 558         if (pcnt < 2)
 559         {
 560                 return;
 561         }
 562
 563         int MOD_RESULT = 0;
 564         FOREACH_RESULT(OnAccessCheck(user,NULL,chan,AC_GENERAL_MODE));
 565
 566         if (MOD_RESULT == ACR_DENY)
 567                 return;
 568
 569         log(DEBUG,"process_modes: start: parameters=%d",pcnt);
 570
 571         strlcpy(modelist,parameters[1],MAXBUF); /* mode list, e.g. +oo-o *
 572                                                  * parameters[2] onwards are parameters for
 573                                                  * modes that require them :) */
 574         strlcpy(outlist,"+",MAXBUF);
 575         mdir = 1;
 576
 577         log(DEBUG,"process_modes: modelist: %s",modelist);
 578
 579         std::string tidied = this->CompressModes(modelist,true);
 580         strlcpy(modelist,tidied.c_str(),MAXBUF);
 581
 582         int len = strlen(modelist);
 583         while (modelist[len-1] == ' ')
 584                 modelist[--len] = '\0';
 585         for (ptr = 0; ptr < len; ptr++)
 586         {
 587                 r = NULL;
 588
 589                 {
 590                         log(DEBUG,"process_modes: modechar: %c",modelist[ptr]);
 591
 592                         char modechar = modelist[ptr];
 593                         switch (modelist[ptr])
 594                         {
 595                                 case '-':
 596                                         if (mdir != 0)
 597                                         {
 598                                                 int t = strlen(outlist)-1;
 599                                                 if ((outlist[t] == '+') || (outlist[t] == '-'))
 600                                                 {
 601                                                         outlist[t] = '-';
 602                                                 }
 603                                                 else
 604                                                 {
 605                                                         strcat(outlist,"-");
 606                                                 }
 607                                         }
 608                                         mdir = 0;
 609
 610                                 break;
 611
 612                                 case '+':
 613                                         if (mdir != 1)
 614                                         {
 615                                                 int t = strlen(outlist)-1;
 616                                                 if ((outlist[t] == '+') || (outlist[t] == '-'))
 617                                                 {
 618                                                         outlist[t] = '+';
 619                                                 }
 620                                                 else
 621                                                 {
 622                                                         strcat(outlist,"+");
 623                                                 }
 624                                         }
 625                                         mdir = 1;
 626                                 break;
 627
 628                                 case 'o':
 629                                         log(DEBUG,"Ops");
 630                                         if ((param >= pcnt)) break;
 631                                         log(DEBUG,"Enough parameters left");
 632                                         if (mdir == 1)
 633                                         {
 634                                                 MOD_RESULT = 0;
 635                                                 FOREACH_RESULT(OnRawMode(user, chan, 'o', parameters[param], true, 1));
 636                                                 if (!MOD_RESULT)
 637                                                 {
 638                                                         log(DEBUG,"calling GiveOps");
 639                                                         r = GiveOps(user,parameters[param++],chan,status);
 640                                                 }
 641                                                 else param++;
 642                                         }
 643                                         else
 644                                         {
 645                                                 MOD_RESULT = 0;
 646                                                 FOREACH_RESULT(OnRawMode(user, chan, 'o', parameters[param], false, 1));
 647                                                 if (!MOD_RESULT)
 648                                                 {
 649                                                         log(DEBUG,"calling TakeOps");
 650                                                         r = TakeOps(user,parameters[param++],chan,status);
 651                                                 }
 652                                                 else param++;
 653                                         }
 654                                         if (r)
 655                                         {
 656                                                 strlcat(outlist,"o",MAXBUF);
 657                                                 strlcpy(outpars[pc++],r,MAXBUF);
 658                                         }
 659                                 break;
 660
 661                                 case 'h':
 662                                         if (((param >= pcnt)) || (!Config->AllowHalfop)) break;
 663                                         if (mdir == 1)
 664                                         {
 665                                                 MOD_RESULT = 0;
 666                                                 FOREACH_RESULT(OnRawMode(user, chan, 'h', parameters[param], true, 1));
 667                                                 if (!MOD_RESULT)
 668                                                 {
 669                                                         r = GiveHops(user,parameters[param++],chan,status);
 670                                                 }
 671                                                 else param++;
 672                                         }
 673                                         else
 674                                         {
 675                                                 MOD_RESULT = 0;
 676                                                 FOREACH_RESULT(OnRawMode(user, chan, 'h', parameters[param], false, 1));
 677                                                 if (!MOD_RESULT)
 678                                                 {
 679                                                         r = TakeHops(user,parameters[param++],chan,status);
 680                                                 }
 681                                                 else param++;
 682                                         }
 683                                         if (r)
 684                                         {
 685                                                 strlcat(outlist,"h",MAXBUF);
 686                                                 strlcpy(outpars[pc++],r,MAXBUF);
 687                                         }
 688                                 break;
 689
 690
 691                                 case 'v':
 692                                         if ((param >= pcnt)) break;
 693                                         if (mdir == 1)
 694                                         {
 695                                                 MOD_RESULT = 0;
 696                                                 FOREACH_RESULT(OnRawMode(user, chan, 'v', parameters[param], true, 1));
 697                                                 if (!MOD_RESULT)
 698                                                 {
 699                                                         r = GiveVoice(user,parameters[param++],chan,status);
 700                                                 }
 701                                                 else param++;
 702                                         }
 703                                         else
 704                                         {
 705                                                 MOD_RESULT = 0;
 706                                                 FOREACH_RESULT(OnRawMode(user, chan, 'v', parameters[param], false, 1));
 707                                                 if (!MOD_RESULT)
 708                                                 {
 709                                                         r = TakeVoice(user,parameters[param++],chan,status);
 710                                                 }
 711                                                 else param++;
 712                                         }
 713                                         if (r)
 714                                         {
 715                                                 strlcat(outlist,"v",MAXBUF);
 716                                                 strlcpy(outpars[pc++],r,MAXBUF);
 717                                         }
 718                                 break;
 719
 720                                 case 'b':
 721                                         if ((param >= pcnt)) break;
 722                                         if (mdir == 1)
 723                                         {
 724                                                 MOD_RESULT = 0;
 725                                                 FOREACH_RESULT(OnRawMode(user, chan, 'b', parameters[param], true, 1));
 726                                                 if (!MOD_RESULT)
 727                                                 {
 728                                                         r = AddBan(user,parameters[param++],chan,status);
 729                                                 }
 730                                                 else param++;
 731                                         }
 732                                         else
 733                                         {
 734                                                 MOD_RESULT = 0;
 735                                                 FOREACH_RESULT(OnRawMode(user, chan, 'b', parameters[param], false, 1));
 736                                                 if (!MOD_RESULT)
 737                                                 {
 738                                                         r = TakeBan(user,parameters[param++],chan,status);
 739                                                 }
 740                                                 else param++;
 741                                         }
 742                                         if (r)
 743                                         {
 744                                                 strlcat(outlist,"b",MAXBUF);
 745                                                 strlcpy(outpars[pc++],parameters[param-1],MAXBUF);
 746                                         }
 747                                 break;
 748
 749
 750                                 case 'k':
 751                                         if ((param >= pcnt))
 752                                                 break;
 753
 754                                         if (mdir == 1)
 755                                         {
 756                                                 if (k_set)
 757                                                         break;
 758
 759                                                 if (previously_unset_k)
 760                                                         break;
 761                                                 previously_set_k = true;
 762
 763                                                 if (!strcmp(chan->key,""))
 764                                                 {
 765                                                         MOD_RESULT = 0;
 766                                                         FOREACH_RESULT(OnRawMode(user, chan, 'k', parameters[param], true, 1));
 767                                                         if (!MOD_RESULT)
 768                                                         {
 769                                                                 strcat(outlist,"k");
 770                                                                 char key[MAXBUF];
 771                                                                 strlcpy(key,parameters[param++],32);
 772                                                                 strlcpy(outpars[pc++],key,MAXBUF);
 773                                                                 strlcpy(chan->key,key,MAXBUF);
 774                                                                 k_set = true;
 775                                                         }
 776                                                         else param++;
 777                                                 }
 778                                         }
 779                                         else
 780                                         {
 781                                                 /* checks on -k are case sensitive and only accurate to the
 782                                                    first 32 characters */
 783                                                 if (previously_set_k)
 784                                                         break;
 785                                                 previously_unset_k = true;
 786
 787                                                 char key[MAXBUF];
 788                                                 MOD_RESULT = 0;
 789                                                 FOREACH_RESULT(OnRawMode(user, chan, 'k', parameters[param], false, 1));
 790                                                 if (!MOD_RESULT)
 791                                                 {
 792                                                         strlcpy(key,parameters[param++],32);
 793                                                         /* only allow -k if correct key given */
 794                                                         if (!strcmp(chan->key,key))
 795                                                         {
 796                                                                 strlcat(outlist,"k",MAXBUF);
 797                                                                 strlcpy(chan->key,"",MAXBUF);
 798                                                                 strlcpy(outpars[pc++],key,MAXBUF);
 799                                                         }
 800                                                 }
 801                                                 else param++;
 802                                         }
 803                                 break;
 804
 805                                 case 'l':
 806                                         if (mdir == 0)
 807                                         {
 808                                                 if (previously_set_l)
 809                                                         break;
 810                                                 previously_unset_l = true;
 811                                                 MOD_RESULT = 0;
 812                                                 FOREACH_RESULT(OnRawMode(user, chan, 'l', "", false, 0));
 813                                                 if (!MOD_RESULT)
 814                                                 {
 815                                                         if (chan->limit)
 816                                                         {
 817                                                                 strcat(outlist,"l");
 818                                                                 chan->limit = 0;
 819                                                         }
 820                                                 }
 821                                         }
 822
 823                                         if ((param >= pcnt)) break;
 824                                         if (mdir == 1)
 825                                         {
 826                                                 if (l_set)
 827                                                         break;
 828                                                 if (previously_unset_l)
 829                                                         break;
 830                                                 previously_set_l = true;
 831                                                 bool invalid = false;
 832                                                 for (unsigned int i = 0; i < strlen(parameters[param]); i++)
 833                                                 {
 834                                                         if ((parameters[param][i] < '0') || (parameters[param][i] > '9'))
 835                                                         {
 836                                                                 invalid = true;
 837                                                         }
 838                                                 }
 839                                                 if (atoi(parameters[param]) < 1)
 840                                                 {
 841                                                         invalid = true;
 842                                                 }
 843
 844                                                 if (invalid)
 845                                                         break;
 846
 847                                                 MOD_RESULT = 0;
 848                                                 FOREACH_RESULT(OnRawMode(user, chan, 'l', parameters[param], true, 1));
 849                                                 if (!MOD_RESULT)
 850                                                 {
 851
 852                                                         chan->limit = atoi(parameters[param]);
 853
 854                                                         // reported by mech: large values cause underflow
 855                                                         if (chan->limit < 0)
 856                                                                 chan->limit = 0x7FFF;
 857                                                 }
 858
 859                                                 if (chan->limit)
 860                                                 {
 861                                                         strlcat(outlist,"l",MAXBUF);
 862                                                         strlcpy(outpars[pc++],parameters[param++],MAXBUF);
 863                                                         l_set = true;
 864                                                 }
 865                                         }
 866                                 break;
 867
 868                                 case 'i':
 869                                         MOD_RESULT = 0;
 870                                         FOREACH_RESULT(OnRawMode(user, chan, 'i', "", mdir, 0));
 871                                         if (!MOD_RESULT)
 872                                         {
 873                                                 if (mdir)
 874                                                 {
 875                                                         if (!(chan->binarymodes & CM_INVITEONLY)) strlcat(outlist,"i",MAXBUF);
 876                                                         chan->binarymodes |= CM_INVITEONLY;
 877                                                 }
 878                                                 else
 879                                                 {
 880                                                         if (chan->binarymodes & CM_INVITEONLY) strlcat(outlist,"i",MAXBUF);
 881                                                         chan->binarymodes &= ~CM_INVITEONLY;
 882                                                 }
 883                                         }
 884                                 break;
 885
 886                                 case 't':
 887                                         MOD_RESULT = 0;
 888                                         FOREACH_RESULT(OnRawMode(user, chan, 't', "", mdir, 0));
 889                                         if (!MOD_RESULT)
 890                                         {
 891                                                 if (mdir)
 892                                                 {
 893                                                         if (!(chan->binarymodes & CM_TOPICLOCK)) strlcat(outlist,"t",MAXBUF);
 894                                                         chan->binarymodes |= CM_TOPICLOCK;
 895                                                 }
 896                                                 else
 897                                                 {
 898                                                         if (chan->binarymodes & CM_NOEXTERNAL) strlcat(outlist,"t",MAXBUF);
 899                                                         chan->binarymodes &= ~CM_TOPICLOCK;
 900                                                 }
 901                                         }
 902                                 break;
 903
 904                                 case 'n':
 905                                         MOD_RESULT = 0;
 906                                         FOREACH_RESULT(OnRawMode(user, chan, 'n', "", mdir, 0));
 907                                         if (!MOD_RESULT)
 908                                         {
 909                                                 if (mdir)
 910                                                 {
 911                                                         if (!(chan->binarymodes & CM_NOEXTERNAL)) strlcat(outlist,"n",MAXBUF);
 912                                                         chan->binarymodes |= CM_NOEXTERNAL;
 913                                                 }
 914                                                 else
 915                                                 {
 916                                                         if (chan->binarymodes & CM_NOEXTERNAL) strlcat(outlist,"n",MAXBUF);
 917                                                         chan->binarymodes &= ~CM_NOEXTERNAL;
 918                                                 }
 919                                         }
 920                                 break;
 921
 922                                 case 'm':
 923                                         MOD_RESULT = 0;
 924                                         FOREACH_RESULT(OnRawMode(user, chan, 'm', "", mdir, 0));
 925                                         if (!MOD_RESULT)
 926                                         {
 927                                                 if (mdir)
 928                                                 {
 929                                                         if (!(chan->binarymodes & CM_MODERATED)) strlcat(outlist,"m",MAXBUF);
 930                                                         chan->binarymodes |= CM_MODERATED;
 931                                                 }
 932                                                 else
 933                                                 {
 934                                                         if (chan->binarymodes & CM_MODERATED) strlcat(outlist,"m",MAXBUF);
 935                                                         chan->binarymodes &= ~CM_MODERATED;
 936                                                 }
 937                                         }
 938                                 break;
 939
 940                                 case 's':
 941                                         MOD_RESULT = 0;
 942                                         FOREACH_RESULT(OnRawMode(user, chan, 's', "", mdir, 0));
 943                                         if (!MOD_RESULT)
 944                                         {
 945                                                 if (mdir)
 946                                                 {
 947                                                         if (!(chan->binarymodes & CM_SECRET)) strlcat(outlist,"s",MAXBUF);
 948                                                         chan->binarymodes |= CM_SECRET;
 949                                                         if (chan->binarymodes & CM_PRIVATE)
 950                                                         {
 951                                                                 chan->binarymodes &= ~CM_PRIVATE;
 952                                                                 if (mdir)
 953                                                                 {
 954                                                                         strlcat(outlist,"-p+",MAXBUF);
 955                                                                 }
 956                                                         }
 957                                                 }
 958                                                 else
 959                                                 {
 960                                                         if (chan->binarymodes & CM_SECRET) strlcat(outlist,"s",MAXBUF);
 961                                                         chan->binarymodes &= ~CM_SECRET;
 962                                                 }
 963                                         }
 964                                 break;
 965
 966                                 case 'p':
 967                                         MOD_RESULT = 0;
 968                                         FOREACH_RESULT(OnRawMode(user, chan, 'p', "", mdir, 0));
 969                                         if (!MOD_RESULT)
 970                                         {
 971                                                 if (mdir)
 972                                                 {
 973                                                         if (!(chan->binarymodes & CM_PRIVATE)) strlcat(outlist,"p",MAXBUF);
 974                                                         chan->binarymodes |= CM_PRIVATE;
 975                                                         if (chan->binarymodes & CM_SECRET)
 976                                                         {
 977                                                                 chan->binarymodes &= ~CM_SECRET;
 978                                                                 if (mdir)
 979                                                                 {
 980                                                                         strlcat(outlist,"-s+",MAXBUF);
 981                                                                 }
 982                                                         }
 983                                                 }
 984                                                 else
 985                                                 {
 986                                                         if (chan->binarymodes & CM_PRIVATE) strlcat(outlist,"p",MAXBUF);
 987                                                         chan->binarymodes &= ~CM_PRIVATE;
 988                                                 }
 989                                         }
 990                                 break;
 991
 992                                 default:
 993                                         log(DEBUG,"Preprocessing custom mode %c: modelist: %s",modechar,chan->custom_modes);
 994                                         string_list p;
 995                                         p.clear();
 996                                         if (((!strchr(chan->custom_modes,modechar)) && (!mdir)) || ((strchr(chan->custom_modes,modechar)) && (mdir)))
 997                                         {
 998                                                 if (!ModeIsListMode(modechar,MT_CHANNEL))
 999                                                 {
1000                                                         log(DEBUG,"Mode %c isnt set on %s but trying to remove!",modechar,chan->name);
1001                                                         break;
1002                                                 }
1003                                         }
1004                                         if (ModeDefined(modechar,MT_CHANNEL))
1005                                         {
1006                                                 log(DEBUG,"A module has claimed this mode");
1007                                                 if (param<pcnt)
1008                                                 {
1009                                                         if ((ModeDefinedOn(modechar,MT_CHANNEL)>0) && (mdir))
1010                                                         {
1011                                                                 p.push_back(parameters[param]);
1012                                                         }
1013                                                         if ((ModeDefinedOff(modechar,MT_CHANNEL)>0) && (!mdir))
1014                                                         {
1015                                                                 p.push_back(parameters[param]);
1016                                                         }
1017                                                 }
1018                                                 bool handled = false;
1019                                                 if (param>=pcnt)
1020                                                 {
1021                                                         // we're supposed to have a parameter, but none was given... so dont handle the mode.
1022                                                         if (((ModeDefinedOn(modechar,MT_CHANNEL)>0) && (mdir)) || ((ModeDefinedOff(modechar,MT_CHANNEL)>0) && (!mdir)))
1023                                                         {
1024                                                                 log(DEBUG,"Not enough parameters for module-mode %c",modechar);
1025                                                                 handled = true;
1026                                                                 param++;
1027                                                         }
1028                                                 }
1029
1030                                                 // BIG ASS IDIOTIC CODER WARNING!
1031                                                 // Using OnRawMode on another modules mode's behavour
1032                                                 // will confuse the crap out of admins! just because you CAN
1033                                                 // do it, doesnt mean you SHOULD!
1034                                                 MOD_RESULT = 0;
1035                                                 std::string para = "";
1036                                                 if (p.size())
1037                                                         para = p[0];
1038                                                 FOREACH_RESULT(OnRawMode(user, chan, modechar, para, mdir, pcnt));
1039                                                 if (!MOD_RESULT)
1040                                                 {
1041                                                         for (int i = 0; i <= MODCOUNT; i++)
1042                                                         {
1043                                                                 if (!handled)
1044                                                                 {
1045                                                                         int t = modules[i]->OnExtendedMode(user,chan,modechar,MT_CHANNEL,mdir,p);
1046                                                                         if (t != 0)
1047                                                                         {
1048                                                                                 log(DEBUG,"OnExtendedMode returned nonzero for a module");
1049                                                                                 char app[] = {modechar, 0};
1050                                                                                 if (ModeIsListMode(modechar,MT_CHANNEL))
1051                                                                                 {
1052                                                                                         if (t == -1)
1053                                                                                         {
1054                                                                                                 //pc++;
1055                                                                                                 param++;
1056                                                                                         }
1057                                                                                         else
1058                                                                                         {
1059                                                                                                 if (ptr>0)
1060                                                                                                 {
1061                                                                                                         strlcat(outlist, app,MAXBUF);
1062                                                                                                 }
1063                                                                                                 strlcpy(outpars[pc++],parameters[param++],MAXBUF);
1064                                                                                         }
1065                                                                                 }
1066                                                                                 else
1067                                                                                 {
1068                                                                                         if (ptr>0)
1069                                                                                         {
1070                                                                                                 if ((modelist[ptr-1] == '+') || (modelist[ptr-1] == '-'))
1071                                                                                                 {
1072                                                                                                         strlcat(outlist, app,MAXBUF);
1073                                                                                                 }
1074                                                                                                 else if (!strchr(outlist,modechar))
1075                                                                                                 {
1076                                                                                                         strlcat(outlist, app,MAXBUF);
1077                                                                                                 }
1078                                                                                         }
1079                                                                                         chan->SetCustomMode(modechar,mdir);
1080                                                                                         // include parameters in output if mode has them
1081                                                                                         if ((ModeDefinedOn(modechar,MT_CHANNEL)>0) && (mdir))
1082                                                                                         {
1083                                                                                                 chan->SetCustomModeParam(modelist[ptr],parameters[param],mdir);
1084                                                                                                 strlcpy(outpars[pc++],parameters[param++],MAXBUF);
1085                                                                                         }
1086                                                                                 }
1087                                                                                 // break, because only one module can handle the mode.
1088                                                                                 handled = true;
1089                                                                         }
1090                                                                 }
1091                                                         }
1092                                                 }
1093                                         }
1094                                         else
1095                                         {
1096                                                 WriteServ(user->fd,"472 %s %c :is unknown mode char to me",user->nick,modechar);
1097                                         }
1098                                 break;
1099
1100                         }
1101                 }
1102         }
1103
1104         /* this ensures only the *valid* modes are sent out onto the network */
1105         int xt = strlen(outlist)-1;
1106         while ((outlist[xt] == '-') || (outlist[xt] == '+'))
1107         {
1108                 outlist[xt] = '\0';
1109                 xt = strlen(outlist)-1;
1110         }
1111         if (outlist[0])
1112         {
1113                 strlcpy(outstr,outlist,MAXBUF);
1114                 for (ptr = 0; ptr < pc; ptr++)
1115                 {
1116                         strlcat(outstr," ",MAXBUF);
1117                         strlcat(outstr,outpars[ptr],MAXBUF);
1118                 }
1119                 if (local)
1120                 {
1121                         log(DEBUG,"Local mode change");
1122                         WriteChannelLocal(chan, user, "MODE %s %s",chan->name,outstr);
1123                         FOREACH_MOD OnMode(user, chan, TYPE_CHANNEL, outstr);
1124                 }
1125                 else
1126                 {
1127                         if (servermode)
1128                         {
1129                                 if (!silent)
1130                                 {
1131                                         WriteChannelWithServ(Config->ServerName,chan,"MODE %s %s",chan->name,outstr);
1132                                 }
1133
1134                         }
1135                         else
1136                         {
1137                                 if (!silent)
1138                                 {
1139                                         WriteChannel(chan,user,"MODE %s %s",chan->name,outstr);
1140                                         FOREACH_MOD OnMode(user, chan, TYPE_CHANNEL, outstr);
1141                                 }
1142                         }
1143                 }
1144         }
1145 }
1146
1147 // based on sourcemodes, return true or false to determine if umode is a valid mode a user may set on themselves or others.
1148
1149 bool ModeParser::AllowedUmode(char umode, char* sourcemodes,bool adding,bool serveroverride)
1150 {
1151         log(DEBUG,"Allowed_umode: %c %s",umode,sourcemodes);
1152         // Servers can +o and -o arbitrarily
1153         if ((serveroverride == true) && (umode == 'o'))
1154         {
1155                 return true;
1156         }
1157         // RFC1459 specified modes
1158         if ((umode == 'w') || (umode == 's') || (umode == 'i'))
1159         {
1160                 log(DEBUG,"umode %c allowed by RFC1459 scemantics",umode);
1161                 return true;
1162         }
1163
1164         // user may not +o themselves or others, but an oper may de-oper other opers or themselves
1165         if ((strchr(sourcemodes,'o')) && (!adding))
1166         {
1167                 log(DEBUG,"umode %c allowed by RFC1459 scemantics",umode);
1168                 return true;
1169         }
1170         else if (umode == 'o')
1171         {
1172                 log(DEBUG,"umode %c allowed by RFC1459 scemantics",umode);
1173                 return false;
1174         }
1175
1176         // process any module-defined modes that need oper
1177         if ((ModeDefinedOper(umode,MT_CLIENT)) && (strchr(sourcemodes,'o')))
1178         {
1179                 log(DEBUG,"umode %c allowed by module handler (oper only mode)",umode);
1180                 return true;
1181         }
1182         else
1183         if (ModeDefined(umode,MT_CLIENT))
1184         {
1185                 // process any module-defined modes that don't need oper
1186                 log(DEBUG,"umode %c allowed by module handler (non-oper mode)",umode);
1187                 if ((ModeDefinedOper(umode,MT_CLIENT)) && (!strchr(sourcemodes,'o')))
1188                 {
1189                         // no, this mode needs oper, and this user 'aint got what it takes!
1190                         return false;
1191                 }
1192                 return true;
1193         }
1194
1195         // anything else - return false.
1196         log(DEBUG,"umode %c not known by any ruleset",umode);
1197         return false;
1198 }
1199
1200 bool ModeParser::ProcessModuleUmode(char umode, userrec* source, void* dest, bool adding)
1201 {
1202         userrec* s2;
1203         bool faked = false;
1204         if (!source)
1205         {
1206                 s2 = new userrec;
1207                 strlcpy(s2->nick,Config->ServerName,NICKMAX);
1208                 strlcpy(s2->modes,"o",52);
1209                 s2->fd = -1;
1210                 source = s2;
1211                 faked = true;
1212         }
1213         string_list p;
1214         p.clear();
1215         if (ModeDefined(umode,MT_CLIENT))
1216         {
1217                 for (int i = 0; i <= MODCOUNT; i++)
1218                 {
1219                         if (modules[i]->OnExtendedMode(source,(void*)dest,umode,MT_CLIENT,adding,p))
1220                         {
1221                                 log(DEBUG,"Module %s claims umode %c",Config->module_names[i].c_str(),umode);
1222                                 return true;
1223                         }
1224                 }
1225                 log(DEBUG,"No module claims umode %c",umode);
1226                 if (faked)
1227                 {
1228                         delete s2;
1229                         source = NULL;
1230                 }
1231                 return false;
1232         }
1233         else
1234         {
1235                 if (faked)
1236                 {
1237                         delete s2;
1238                         source = NULL;
1239                 }
1240                 return false;
1241         }
1242 }
1243
1244 void cmd_mode::Handle (char **parameters, int pcnt, userrec *user)
1245 {
1246         chanrec* Ptr;
1247         userrec* dest;
1248         int can_change;
1249         int direction = 1;
1250         char outpars[MAXBUF];
1251
1252         dest = Find(parameters[0]);
1253
1254         if (!user)
1255         {
1256                 return;
1257         }
1258
1259         if ((dest) && (pcnt == 1))
1260         {
1261                 WriteServ(user->fd,"221 %s :+%s",dest->nick,dest->modes);
1262                 return;
1263         }
1264
1265         if ((dest) && (pcnt > 1))
1266         {
1267                 std::string tidied = ServerInstance->ModeGrok->CompressModes(parameters[1],false);
1268                 parameters[1] = (char*)tidied.c_str();
1269
1270                 char dmodes[MAXBUF];
1271                 strlcpy(dmodes,dest->modes,52);
1272                 log(DEBUG,"pulled up dest user modes: %s",dmodes);
1273
1274                 can_change = 0;
1275                 if (user != dest)
1276                 {
1277                         if ((strchr(user->modes,'o')) || (is_uline(user->server)))
1278                         {
1279                                 can_change = 1;
1280                         }
1281                 }
1282                 else
1283                 {
1284                         can_change = 1;
1285                 }
1286                 if (!can_change)
1287                 {
1288                         WriteServ(user->fd,"482 %s :Can't change mode for other users",user->nick);
1289                         return;
1290                 }
1291
1292                 outpars[0] = '+';
1293                 outpars[1] = 0;
1294                 direction = 1;
1295
1296                 if ((parameters[1][0] != '+') && (parameters[1][0] != '-'))
1297                         return;
1298
1299                 for (unsigned int i = 0; i < strlen(parameters[1]); i++)
1300                 {
1301                         if (parameters[1][i] == ' ')
1302                                 continue;
1303                         if (parameters[1][i] == '+')
1304                         {
1305                                 if (direction != 1)
1306                                 {
1307                                         int t = strlen(outpars)-1;
1308                                         if ((outpars[t] == '+') || (outpars[t] == '-'))
1309                                         {
1310                                                 outpars[t] = '+';
1311                                         }
1312                                         else
1313                                         {
1314                                                 strcat(outpars,"+");
1315                                         }
1316                                 }
1317                                 direction = 1;
1318                         }
1319                         else
1320                         if (parameters[1][i] == '-')
1321                         {
1322                                 if (direction != 0)
1323                                 {
1324                                         int t = strlen(outpars)-1;
1325                                         if ((outpars[t] == '+') || (outpars[t] == '-'))
1326                                         {
1327                                                 outpars[t] = '-';
1328                                         }
1329                                         else
1330                                         {
1331                                                 strcat(outpars,"-");
1332                                         }
1333                                 }
1334                                 direction = 0;
1335                         }
1336                         else
1337                         {
1338                                 can_change = 0;
1339                                 if (strchr(user->modes,'o'))
1340                                 {
1341                                         can_change = 1;
1342                                 }
1343                                 else
1344                                 {
1345                                         if ((parameters[1][i] == 'i') || (parameters[1][i] == 'w') || (parameters[1][i] == 's') || (ServerInstance->ModeGrok->AllowedUmode(parameters[1][i],user->modes,direction,false)))
1346                                         {
1347                                                 can_change = 1;
1348                                         }
1349                                 }
1350                                 if (can_change)
1351                                 {
1352                                         if (direction == 1)
1353                                         {
1354                                                 if ((!strchr(dmodes,parameters[1][i])) && (ServerInstance->ModeGrok->AllowedUmode(parameters[1][i],user->modes,true,false)))
1355                                                 {
1356                                                         char umode = parameters[1][i];
1357                                                         if ((ServerInstance->ModeGrok->ProcessModuleUmode(umode, user, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
1358                                                         {
1359                                                                 int q = strlen(dmodes);
1360                                                                 int r = strlen(outpars);
1361                                                                 dmodes[q+1]='\0';
1362                                                                 dmodes[q] = parameters[1][i];
1363                                                                 outpars[r+1]='\0';
1364                                                                 outpars[r] = parameters[1][i];
1365                                                                 if (parameters[1][i] == 'o')
1366                                                                 {
1367                                                                         FOREACH_MOD OnGlobalOper(dest);
1368                                                                 }
1369                                                         }
1370                                                 }
1371                                         }
1372                                         else
1373                                         {
1374                                                 if ((ServerInstance->ModeGrok->AllowedUmode(parameters[1][i],user->modes,false,false)) && (strchr(dmodes,parameters[1][i])))
1375                                                 {
1376                                                         char umode = parameters[1][i];
1377                                                         if ((ServerInstance->ModeGrok->ProcessModuleUmode(umode, user, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
1378                                                         {
1379                                                                 unsigned int q = 0;
1380                                                                 char temp[MAXBUF];
1381                                                                 char moo[MAXBUF];
1382
1383                                                                 unsigned int r = strlen(outpars);
1384                                                                 outpars[r+1]='\0';
1385                                                                 outpars[r] = parameters[1][i];
1386
1387                                                                 *temp = 0;
1388                                                                 for (q = 0; q < strlen(dmodes); q++)
1389                                                                 {
1390                                                                         if (dmodes[q] != parameters[1][i])
1391                                                                         {
1392                                                                                 moo[0] = dmodes[q];
1393                                                                                 moo[1] = '\0';
1394                                                                                 strlcat(temp,moo,MAXBUF);
1395                                                                         }
1396                                                                 }
1397                                                                 strlcpy(dmodes,temp,52);
1398
1399                                                                 if (umode == 'o')
1400                                                                         DeleteOper(dest);
1401                                                         }
1402                                                 }
1403                                         }
1404                                 }
1405                         }
1406                 }
1407                 if (outpars[0])
1408                 {
1409                         char b[MAXBUF];
1410                         strlcpy(b,"",MAXBUF);
1411                         unsigned int z = 0;
1412                         unsigned int i = 0;
1413                         while (i < strlen (outpars))
1414                         {
1415                                 b[z++] = outpars[i++];
1416                                 b[z] = '\0';
1417                                 if (i<strlen(outpars)-1)
1418                                 {
1419                                         if (((outpars[i] == '-') || (outpars[i] == '+')) && ((outpars[i+1] == '-') || (outpars[i+1] == '+')))
1420                                         {
1421                                                 // someones playing silly buggers and trying
1422                                                 // to put a +- or -+ into the line...
1423                                                 i++;
1424                                         }
1425                                 }
1426                                 if (i == strlen(outpars)-1)
1427                                 {
1428                                         if ((outpars[i] == '-') || (outpars[i] == '+'))
1429                                         {
1430                                                 i++;
1431                                         }
1432                                 }
1433                         }
1434
1435                         z = strlen(b)-1;
1436                         if ((b[z] == '-') || (b[z] == '+'))
1437                                 b[z] = '\0';
1438
1439                         if ((!b[0]) || (!strcmp(b,"+")) || (!strcmp(b,"-")))
1440                                 return;
1441
1442                         if (strcmp(b,""))
1443                         {
1444                                 WriteTo(user, dest, "MODE %s :%s", dest->nick, b);
1445                                 FOREACH_MOD OnMode(user, dest, TYPE_USER, b);
1446                         }
1447
1448                         if (strlen(dmodes)>MAXMODES)
1449                         {
1450                                 dmodes[MAXMODES-1] = '\0';
1451                         }
1452                         log(DEBUG,"Stripped mode line");
1453                         log(DEBUG,"Line dest is now %s",dmodes);
1454                         strlcpy(dest->modes,dmodes,52);
1455
1456                 }
1457
1458                 return;
1459         }
1460
1461         Ptr = FindChan(parameters[0]);
1462         if (Ptr)
1463         {
1464                 if (pcnt == 1)
1465                 {
1466                         /* just /modes #channel */
1467                         WriteServ(user->fd,"324 %s %s +%s",user->nick, Ptr->name, chanmodes(Ptr));
1468                         WriteServ(user->fd,"329 %s %s %d", user->nick, Ptr->name, Ptr->created);
1469                         return;
1470                 }
1471                 else
1472                 if (pcnt == 2)
1473                 {
1474                         char* mode = parameters[1];
1475                         if (*mode == '+')
1476                                 mode++;
1477                         int MOD_RESULT = 0;
1478                         FOREACH_RESULT(OnRawMode(user, Ptr, *mode, "", false, 0));
1479                         if (!MOD_RESULT)
1480                         {
1481                                 if (*mode == 'b')
1482                                 {
1483
1484                                         for (BanList::iterator i = Ptr->bans.begin(); i != Ptr->bans.end(); i++)
1485                                         {
1486                                                 WriteServ(user->fd,"367 %s %s %s %s %d",user->nick, Ptr->name, i->data, i->set_by, i->set_time);
1487                                         }
1488                                         WriteServ(user->fd,"368 %s %s :End of channel ban list",user->nick, Ptr->name);
1489                                         return;
1490                                 }
1491                                 if ((ModeDefined(*mode,MT_CHANNEL)) && (ModeIsListMode(*mode,MT_CHANNEL)))
1492                                 {
1493                                         // list of items for an extmode
1494                                         log(DEBUG,"Calling OnSendList for all modules, list output for mode %c",*mode);
1495                                         FOREACH_MOD OnSendList(user,Ptr,*mode);
1496                                         return;
1497                                 }
1498                         }
1499                 }
1500
1501                 if (((Ptr) && (!has_channel(user,Ptr))) && (!is_uline(user->server)))
1502                 {
1503                         WriteServ(user->fd,"442 %s %s :You're not on that channel!",user->nick, Ptr->name);
1504                         return;
1505                 }
1506
1507                 if (Ptr)
1508                 {
1509                         int MOD_RESULT = 0;
1510                         FOREACH_RESULT(OnAccessCheck(user,NULL,Ptr,AC_GENERAL_MODE));
1511
1512                         if (MOD_RESULT == ACR_DENY)
1513                                 return;
1514                         if (MOD_RESULT == ACR_DEFAULT)
1515                         {
1516                                 if (cstatus(user,Ptr) < STATUS_HOP)
1517                                 {
1518                                         WriteServ(user->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel",user->nick, Ptr->name);
1519                                         return;
1520                                 }
1521                         }
1522
1523                         ServerInstance->ModeGrok->ProcessModes(parameters,user,Ptr,cstatus(user,Ptr),pcnt,false,false,false);
1524                 }
1525         }
1526         else
1527         {
1528                 WriteServ(user->fd,"401 %s %s :No such nick/channel",user->nick, parameters[0]);
1529         }
1530 }
1531
1532
1533
1534
1535 void ModeParser::ServerMode(char **parameters, int pcnt, userrec *user)
1536 {
1537         chanrec* Ptr;
1538         userrec* dest;
1539         int can_change;
1540         int direction = 1;
1541         char outpars[MAXBUF];
1542
1543         dest = Find(parameters[0]);
1544
1545         // fix: ChroNiCk found this - we cant use this as debug if its null!
1546         if (dest)
1547         {
1548                 log(DEBUG,"server_mode on %s",dest->nick);
1549         }
1550
1551         if ((dest) && (pcnt > 1))
1552         {
1553                 std::string tidied = ServerInstance->ModeGrok->CompressModes(parameters[1],false);
1554                 parameters[1] = (char*)tidied.c_str();
1555
1556                 char dmodes[MAXBUF];
1557                 strlcpy(dmodes,dest->modes,52);
1558
1559                 outpars[0] = '+';
1560                 outpars[1] = 0;
1561                 direction = 1;
1562
1563                 if ((parameters[1][0] != '+') && (parameters[1][0] != '-'))
1564                         return;
1565
1566                 for (unsigned int i = 0; i < strlen(parameters[1]); i++)
1567                 {
1568                         if (parameters[1][i] == ' ')
1569                                 continue;
1570                         if (parameters[1][i] == '+')
1571                         {
1572                                 if (direction != 1)
1573                                 {
1574                                         int t = strlen(outpars)-1;
1575                                         if ((outpars[t] == '+') || (outpars[t] == '-'))
1576                                         {
1577                                                 outpars[t] = '+';
1578                                         }
1579                                         else
1580                                         {
1581                                                 strcat(outpars,"+");
1582                                         }
1583                                 }
1584                                 direction = 1;
1585                         }
1586                         else
1587                         if (parameters[1][i] == '-')
1588                         {
1589                                 if (direction != 0)
1590                                 {
1591                                         int t = strlen(outpars)-1;
1592                                         if ((outpars[t] == '+') || (outpars[t] == '-'))
1593                                         {
1594                                                 outpars[t] = '-';
1595                                         }
1596                                         else
1597                                         {
1598                                                 strcat(outpars,"-");
1599                                         }
1600                                 }
1601                                 direction = 0;
1602                         }
1603                         else
1604                         {
1605                                 log(DEBUG,"begin mode processing entry");
1606                                 can_change = 1;
1607                                 if (can_change)
1608                                 {
1609                                         if (direction == 1)
1610                                         {
1611                                                 log(DEBUG,"umode %c being added",parameters[1][i]);
1612                                                 if ((!strchr(dmodes,parameters[1][i])) && (ServerInstance->ModeGrok->AllowedUmode(parameters[1][i],user->modes,true,true)))
1613                                                 {
1614                                                         char umode = parameters[1][i];
1615                                                         log(DEBUG,"umode %c is an allowed umode",umode);
1616                                                         if ((ServerInstance->ModeGrok->ProcessModuleUmode(umode, user, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
1617                                                         {
1618                                                                 int v1 = strlen(dmodes);
1619                                                                 int v2 = strlen(outpars);
1620                                                                 dmodes[v1+1]='\0';
1621                                                                 dmodes[v1] = parameters[1][i];
1622                                                                 outpars[v2+1]='\0';
1623                                                                 outpars[v2] = parameters[1][i];
1624                                                         }
1625                                                 }
1626                                         }
1627                                         else
1628                                         {
1629                                                 // can only remove a mode they already have
1630                                                 log(DEBUG,"umode %c being removed",parameters[1][i]);
1631                                                 if ((ServerInstance->ModeGrok->AllowedUmode(parameters[1][i],user->modes,false,true)) && (strchr(dmodes,parameters[1][i])))
1632                                                 {
1633                                                         char umode = parameters[1][i];
1634                                                         log(DEBUG,"umode %c is an allowed umode",umode);
1635                                                         if ((ServerInstance->ModeGrok->ProcessModuleUmode(umode, user, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
1636                                                         {
1637                                                                 unsigned int q = 0;
1638                                                                 char temp[MAXBUF];
1639                                                                 char moo[MAXBUF];
1640
1641                                                                 unsigned int v1 = strlen(outpars);
1642                                                                 outpars[v1+1]='\0';
1643                                                                 outpars[v1] = parameters[1][i];
1644                                                                 *temp = 0;
1645                                                                 for (q = 0; q < strlen(dmodes); q++)
1646                                                                 {
1647                                                                         if (dmodes[q] != parameters[1][i])
1648                                                                         {
1649                                                                                 moo[0] = dmodes[q];
1650                                                                                 moo[1] = '\0';
1651                                                                                 strlcat(temp,moo,MAXBUF);
1652                                                                         }
1653                                                                 }
1654                                                                 strlcpy(dmodes,temp,52);
1655                                                         }
1656                                                 }
1657                                         }
1658                                 }
1659                         }
1660                 }
1661                 if (outpars[0])
1662                 {
1663                         char b[MAXBUF];
1664                         strlcpy(b,"",MAXBUF);
1665                         unsigned int z = 0;
1666                         unsigned int i = 0;
1667                         while (i < strlen (outpars))
1668                         {
1669                                 b[z++] = outpars[i++];
1670                                 b[z] = '\0';
1671                                 if (i<strlen(outpars)-1)
1672                                 {
1673                                         if (((outpars[i] == '-') || (outpars[i] == '+')) && ((outpars[i+1] == '-') || (outpars[i+1] == '+')))
1674                                         {
1675                                                 // someones playing silly buggers and trying
1676                                                 // to put a +- or -+ into the line...
1677                                                 i++;
1678                                         }
1679                                 }
1680                                 if (i == strlen(outpars)-1)
1681                                 {
1682                                         if ((outpars[i] == '-') || (outpars[i] == '+'))
1683                                         {
1684                                                 i++;
1685                                         }
1686                                 }
1687                         }
1688
1689                         z = strlen(b)-1;
1690                         if ((b[z] == '-') || (b[z] == '+'))
1691                                 b[z] = '\0';
1692
1693                         if ((!b[0]) || (!strcmp(b,"+")) || (!strcmp(b,"-")))
1694                                 return;
1695
1696                         if (strcmp(b,""))
1697                         {
1698                                 WriteTo(user, dest, "MODE %s :%s", dest->nick, b);
1699                                 FOREACH_MOD OnMode(user, dest, TYPE_USER, b);
1700                         }
1701
1702                         if (strlen(dmodes)>MAXMODES)
1703                         {
1704                                 dmodes[MAXMODES-1] = '\0';
1705                         }
1706                         log(DEBUG,"Stripped mode line");
1707                         log(DEBUG,"Line dest is now %s",dmodes);
1708                         strlcpy(dest->modes,dmodes,MAXMODES);
1709
1710                 }
1711
1712                 return;
1713         }
1714
1715         Ptr = FindChan(parameters[0]);
1716         if (Ptr)
1717         {
1718                 ServerInstance->ModeGrok->ProcessModes(parameters,user,Ptr,STATUS_OP,pcnt,true,false,false);
1719         }
1720         else
1721         {
1722                 WriteServ(user->fd,"401 %s %s :No such nick/channel",user->nick, parameters[0]);
1723         }
1724 }