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(I_OnAccessCheck,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(I_OnAccessCheck,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(I_OnAccessCheck,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(I_OnAccessCheck,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(I_OnAccessCheck,OnAccessCheck(user,d,chan,AC_DEHALFOP));
 316
 317                 if (MOD_RESULT == ACR_DENY)
 318                         return NULL;
 319                 if (MOD_RESULT == ACR_DEFAULT)
 320                 {
 321                         /* Tweak by Brain suggested by w00t, allow a halfop to dehalfop themselves */
 322                         if ((user != d) && ((status < STATUS_OP) && (!is_uline(user->server))))
 323                         {
 324                                 WriteServ(user->fd,"482 %s %s :You are not a channel operator",user->nick, chan->name);
 325                                 return NULL;
 326                         }
 327                 }
 328
 329                 for (unsigned int i = 0; i < d->chans.size(); i++)
 330                 {
 331                         if ((d->chans[i].channel != NULL) && (chan != NULL))
 332                         if (!strcasecmp(d->chans[i].channel->name,chan->name))
 333                         {
 334                                 if ((d->chans[i].uc_modes & UCMODE_HOP) == 0)
 335                                 {
 336                                         /* mode already set on user, dont allow multiple */
 337                                         return NULL;
 338                                 }
 339                                 d->chans[i].uc_modes ^= UCMODE_HOP;
 340                                 log(DEBUG,"took h-ops: %s %s",d->chans[i].channel->name,d->nick);
 341                                 return d->nick;
 342                         }
 343                 }
 344         }
 345         return NULL;
 346 }
 347
 348 char* ModeParser::TakeVoice(userrec *user,char *dest,chanrec *chan,int status)
 349 {
 350         userrec *d;
 351
 352         if ((!user) || (!dest) || (!chan))
 353         {
 354                 log(DEFAULT,"*** BUG *** TakeVoice was given an invalid parameter");
 355                 return NULL;
 356         }
 357
 358         d = Find(dest);
 359         if (!isnick(dest))
 360         {
 361                 WriteServ(user->fd,"401 %s %s :No such nick/channel",user->nick, dest);
 362                 return NULL;
 363         }
 364         if (!d)
 365         {
 366                 WriteServ(user->fd,"401 %s %s :No such nick/channel",user->nick, dest);
 367                 return NULL;
 368         }
 369         else
 370         {
 371                 int MOD_RESULT = 0;
 372                 FOREACH_RESULT(I_OnAccessCheck,OnAccessCheck(user,d,chan,AC_DEVOICE));
 373
 374                 if (MOD_RESULT == ACR_DENY)
 375                         return NULL;
 376                 if (MOD_RESULT == ACR_DEFAULT)
 377                 {
 378                         if ((status < STATUS_HOP) && (!is_uline(user->server)))
 379                         {
 380                                 WriteServ(user->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel",user->nick, chan->name);
 381                                 return NULL;
 382                         }
 383                 }
 384
 385                 for (unsigned int i = 0; i < d->chans.size(); i++)
 386                 {
 387                         if ((d->chans[i].channel != NULL) && (chan != NULL))
 388                         if (!strcasecmp(d->chans[i].channel->name,chan->name))
 389                         {
 390                                 if ((d->chans[i].uc_modes & UCMODE_VOICE) == 0)
 391                                 {
 392                                         /* mode already set on user, dont allow multiple */
 393                                         return NULL;
 394                                 }
 395                                 d->chans[i].uc_modes ^= UCMODE_VOICE;
 396                                 log(DEBUG,"took voice: %s %s",d->chans[i].channel->name,d->nick);
 397                                 return d->nick;
 398                         }
 399                 }
 400         }
 401         return NULL;
 402 }
 403
 404 char* ModeParser::AddBan(userrec *user,char *dest,chanrec *chan,int status)
 405 {
 406         if ((!user) || (!dest) || (!chan)) {
 407                 log(DEFAULT,"*** BUG *** AddBan was given an invalid parameter");
 408                 return NULL;
 409         }
 410
 411         BanItem b;
 412         if ((!user) || (!dest) || (!chan))
 413                 return NULL;
 414         unsigned int l = strlen(dest);
 415         if (strchr(dest,'!')==0)
 416                 return NULL;
 417         if (strchr(dest,'@')==0)
 418                 return NULL;
 419         for (unsigned int i = 0; i < l; i++)
 420                 if (dest[i] < 32)
 421                         return NULL;
 422         for (unsigned int i = 0; i < l; i++)
 423                 if (dest[i] > 126)
 424                         return NULL;
 425         int c = 0;
 426         for (unsigned int i = 0; i < l; i++)
 427                 if (dest[i] == '!')
 428                         c++;
 429         if (c>1)
 430                 return NULL;
 431         c = 0;
 432         for (unsigned int i = 0; i < l; i++)
 433                 if (dest[i] == '@')
 434                         c++;
 435         if (c>1)
 436                 return NULL;
 437
 438         long maxbans = GetMaxBans(chan->name);
 439         if ((unsigned)chan->bans.size() > (unsigned)maxbans)
 440         {
 441                 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);
 442                 return NULL;
 443         }
 444
 445         log(DEBUG,"AddBan: %s %s",chan->name,user->nick);
 446
 447         int MOD_RESULT = 0;
 448         FOREACH_RESULT(I_OnAddBan,OnAddBan(user,chan,dest));
 449         if (MOD_RESULT)
 450                 return NULL;
 451
 452         TidyBan(dest);
 453         for (BanList::iterator i = chan->bans.begin(); i != chan->bans.end(); i++)
 454         {
 455                 if (!strcasecmp(i->data,dest))
 456                 {
 457                         // dont allow a user to set the same ban twice
 458                         return NULL;
 459                 }
 460         }
 461
 462         b.set_time = TIME;
 463         strncpy(b.data,dest,MAXBUF);
 464         strncpy(b.set_by,user->nick,NICKMAX);
 465         chan->bans.push_back(b);
 466         return dest;
 467 }
 468
 469 char* ModeParser::TakeBan(userrec *user,char *dest,chanrec *chan,int status)
 470 {
 471         if ((!user) || (!dest) || (!chan)) {
 472                 log(DEFAULT,"*** BUG *** TakeBan was given an invalid parameter");
 473                 return 0;
 474         }
 475
 476         log(DEBUG,"del_ban: %s %s",chan->name,user->nick);
 477         for (BanList::iterator i = chan->bans.begin(); i != chan->bans.end(); i++)
 478         {
 479                 if (!strcasecmp(i->data,dest))
 480                 {
 481                         int MOD_RESULT = 0;
 482                         FOREACH_RESULT(I_OnDelBan,OnDelBan(user,chan,dest));
 483                         if (MOD_RESULT)
 484                                 return NULL;
 485                         chan->bans.erase(i);
 486                         return dest;
 487                 }
 488         }
 489         return NULL;
 490 }
 491
 492 // tidies up redundant modes, e.g. +nt-nt+i becomes +-+i,
 493 // a section further down the chain tidies up the +-+- crap.
 494 std::string ModeParser::CompressModes(std::string modes,bool channelmodes)
 495 {
 496         int counts[127];
 497         bool active[127];
 498         memset(counts,0,sizeof(counts));
 499         memset(active,0,sizeof(active));
 500         for (unsigned int i = 0; i < modes.length(); i++)
 501         {
 502                 if ((modes[i] == '+') || (modes[i] == '-'))
 503                         continue;
 504                 if (channelmodes)
 505                 {
 506                         if ((strchr("itnmsp",modes[i])) || ((ModeDefined(modes[i],MT_CHANNEL)) && (ModeDefinedOn(modes[i],MT_CHANNEL)==0) && (ModeDefinedOff(modes[i],MT_CHANNEL)==0)))
 507                         {
 508                                 log(DEBUG,"Tidy mode %c",modes[i]);
 509                                 counts[(unsigned int)modes[i]]++;
 510                                 active[(unsigned int)modes[i]] = true;
 511                         }
 512                 }
 513                 else
 514                 {
 515                         log(DEBUG,"Tidy mode %c",modes[i]);
 516                         counts[(unsigned int)modes[i]]++;
 517                         active[(unsigned int)modes[i]] = true;
 518                 }
 519         }
 520         for (int j = 65; j < 127; j++)
 521         {
 522                 if ((counts[j] > 1) && (active[j] == true))
 523                 {
 524                         static char v[2];
 525                         v[0] = (unsigned char)j;
 526                         v[1] = '\0';
 527                         std::string mode_str = v;
 528                         std::string::size_type pos = modes.find(mode_str);
 529                         if (pos != std::string::npos)
 530                         {
 531                                 log(DEBUG,"all occurances of mode %c to be deleted...",(unsigned char)j);
 532                                 while (modes.find(mode_str) != std::string::npos)
 533                                         modes.erase(modes.find(mode_str),1);
 534                                 log(DEBUG,"New mode line: %s",modes.c_str());
 535                         }
 536                 }
 537         }
 538         return modes;
 539 }
 540
 541 void ModeParser::ProcessModes(char **parameters,userrec* user,chanrec *chan,int status, int pcnt, bool servermode, bool silent, bool local)
 542 {
 543         if (!parameters) {
 544                 log(DEFAULT,"*** BUG *** process_modes was given an invalid parameter");
 545                 return;
 546         }
 547
 548         char modelist[MAXBUF];
 549         char outlist[MAXBUF];
 550         char outstr[MAXBUF];
 551         char outpars[32][MAXBUF];
 552         int param = 2;
 553         int pc = 0;
 554         int ptr = 0;
 555         int mdir = 1;
 556         char* r = NULL;
 557         bool k_set = false, l_set = false, previously_set_l = false, previously_unset_l = false, previously_set_k = false, previously_unset_k = false;
 558
 559         if (pcnt < 2)
 560         {
 561                 return;
 562         }
 563
 564         int MOD_RESULT = 0;
 565         FOREACH_RESULT(I_OnAccessCheck,OnAccessCheck(user,NULL,chan,AC_GENERAL_MODE));
 566
 567         if (MOD_RESULT == ACR_DENY)
 568                 return;
 569
 570         log(DEBUG,"process_modes: start: parameters=%d",pcnt);
 571
 572         strlcpy(modelist,parameters[1],MAXBUF); /* mode list, e.g. +oo-o *
 573                                                  * parameters[2] onwards are parameters for
 574                                                  * modes that require them :) */
 575         strlcpy(outlist,"+",MAXBUF);
 576         mdir = 1;
 577
 578         log(DEBUG,"process_modes: modelist: %s",modelist);
 579
 580         std::string tidied = this->CompressModes(modelist,true);
 581         strlcpy(modelist,tidied.c_str(),MAXBUF);
 582
 583         int len = strlen(modelist);
 584         while (modelist[len-1] == ' ')
 585                 modelist[--len] = '\0';
 586         for (ptr = 0; ptr < len; ptr++)
 587         {
 588                 r = NULL;
 589
 590                 {
 591                         log(DEBUG,"process_modes: modechar: %c",modelist[ptr]);
 592
 593                         char modechar = modelist[ptr];
 594                         switch (modelist[ptr])
 595                         {
 596                                 case '-':
 597                                         if (mdir != 0)
 598                                         {
 599                                                 int t = strlen(outlist)-1;
 600                                                 if ((outlist[t] == '+') || (outlist[t] == '-'))
 601                                                 {
 602                                                         outlist[t] = '-';
 603                                                 }
 604                                                 else
 605                                                 {
 606                                                         strcat(outlist,"-");
 607                                                 }
 608                                         }
 609                                         mdir = 0;
 610
 611                                 break;
 612
 613                                 case '+':
 614                                         if (mdir != 1)
 615                                         {
 616                                                 int t = strlen(outlist)-1;
 617                                                 if ((outlist[t] == '+') || (outlist[t] == '-'))
 618                                                 {
 619                                                         outlist[t] = '+';
 620                                                 }
 621                                                 else
 622                                                 {
 623                                                         strcat(outlist,"+");
 624                                                 }
 625                                         }
 626                                         mdir = 1;
 627                                 break;
 628
 629                                 case 'o':
 630                                         log(DEBUG,"Ops");
 631                                         if ((param >= pcnt)) break;
 632                                         log(DEBUG,"Enough parameters left");
 633                                         if (mdir == 1)
 634                                         {
 635                                                 MOD_RESULT = 0;
 636                                                 FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'o', parameters[param], true, 1));
 637                                                 if (!MOD_RESULT)
 638                                                 {
 639                                                         log(DEBUG,"calling GiveOps");
 640                                                         r = GiveOps(user,parameters[param++],chan,status);
 641                                                 }
 642                                                 else param++;
 643                                         }
 644                                         else
 645                                         {
 646                                                 MOD_RESULT = 0;
 647                                                 FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'o', parameters[param], false, 1));
 648                                                 if (!MOD_RESULT)
 649                                                 {
 650                                                         log(DEBUG,"calling TakeOps");
 651                                                         r = TakeOps(user,parameters[param++],chan,status);
 652                                                 }
 653                                                 else param++;
 654                                         }
 655                                         if (r)
 656                                         {
 657                                                 strlcat(outlist,"o",MAXBUF);
 658                                                 strlcpy(outpars[pc++],r,MAXBUF);
 659                                         }
 660                                 break;
 661
 662                                 case 'h':
 663                                         if (((param >= pcnt)) || (!Config->AllowHalfop)) break;
 664                                         if (mdir == 1)
 665                                         {
 666                                                 MOD_RESULT = 0;
 667                                                 FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'h', parameters[param], true, 1));
 668                                                 if (!MOD_RESULT)
 669                                                 {
 670                                                         r = GiveHops(user,parameters[param++],chan,status);
 671                                                 }
 672                                                 else param++;
 673                                         }
 674                                         else
 675                                         {
 676                                                 MOD_RESULT = 0;
 677                                                 FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'h', parameters[param], false, 1));
 678                                                 if (!MOD_RESULT)
 679                                                 {
 680                                                         r = TakeHops(user,parameters[param++],chan,status);
 681                                                 }
 682                                                 else param++;
 683                                         }
 684                                         if (r)
 685                                         {
 686                                                 strlcat(outlist,"h",MAXBUF);
 687                                                 strlcpy(outpars[pc++],r,MAXBUF);
 688                                         }
 689                                 break;
 690
 691
 692                                 case 'v':
 693                                         if ((param >= pcnt)) break;
 694                                         if (mdir == 1)
 695                                         {
 696                                                 MOD_RESULT = 0;
 697                                                 FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'v', parameters[param], true, 1));
 698                                                 if (!MOD_RESULT)
 699                                                 {
 700                                                         r = GiveVoice(user,parameters[param++],chan,status);
 701                                                 }
 702                                                 else param++;
 703                                         }
 704                                         else
 705                                         {
 706                                                 MOD_RESULT = 0;
 707                                                 FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'v', parameters[param], false, 1));
 708                                                 if (!MOD_RESULT)
 709                                                 {
 710                                                         r = TakeVoice(user,parameters[param++],chan,status);
 711                                                 }
 712                                                 else param++;
 713                                         }
 714                                         if (r)
 715                                         {
 716                                                 strlcat(outlist,"v",MAXBUF);
 717                                                 strlcpy(outpars[pc++],r,MAXBUF);
 718                                         }
 719                                 break;
 720
 721                                 case 'b':
 722                                         if ((param >= pcnt)) break;
 723                                         if (mdir == 1)
 724                                         {
 725                                                 MOD_RESULT = 0;
 726                                                 FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'b', parameters[param], true, 1));
 727                                                 if (!MOD_RESULT)
 728                                                 {
 729                                                         r = AddBan(user,parameters[param++],chan,status);
 730                                                 }
 731                                                 else param++;
 732                                         }
 733                                         else
 734                                         {
 735                                                 MOD_RESULT = 0;
 736                                                 FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'b', parameters[param], false, 1));
 737                                                 if (!MOD_RESULT)
 738                                                 {
 739                                                         r = TakeBan(user,parameters[param++],chan,status);
 740                                                 }
 741                                                 else param++;
 742                                         }
 743                                         if (r)
 744                                         {
 745                                                 strlcat(outlist,"b",MAXBUF);
 746                                                 strlcpy(outpars[pc++],parameters[param-1],MAXBUF);
 747                                         }
 748                                 break;
 749
 750
 751                                 case 'k':
 752                                         if ((param >= pcnt))
 753                                                 break;
 754
 755                                         if (mdir == 1)
 756                                         {
 757                                                 if (k_set)
 758                                                         break;
 759
 760                                                 if (previously_unset_k)
 761                                                         break;
 762                                                 previously_set_k = true;
 763
 764                                                 if (!strcmp(chan->key,""))
 765                                                 {
 766                                                         MOD_RESULT = 0;
 767                                                         FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'k', parameters[param], true, 1));
 768                                                         if (!MOD_RESULT)
 769                                                         {
 770                                                                 strcat(outlist,"k");
 771                                                                 char key[MAXBUF];
 772                                                                 strlcpy(key,parameters[param++],32);
 773                                                                 strlcpy(outpars[pc++],key,MAXBUF);
 774                                                                 strlcpy(chan->key,key,MAXBUF);
 775                                                                 k_set = true;
 776                                                         }
 777                                                         else param++;
 778                                                 }
 779                                         }
 780                                         else
 781                                         {
 782                                                 /* checks on -k are case sensitive and only accurate to the
 783                                                    first 32 characters */
 784                                                 if (previously_set_k)
 785                                                         break;
 786                                                 previously_unset_k = true;
 787
 788                                                 char key[MAXBUF];
 789                                                 MOD_RESULT = 0;
 790                                                 FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'k', parameters[param], false, 1));
 791                                                 if (!MOD_RESULT)
 792                                                 {
 793                                                         strlcpy(key,parameters[param++],32);
 794                                                         /* only allow -k if correct key given */
 795                                                         if (!strcmp(chan->key,key))
 796                                                         {
 797                                                                 strlcat(outlist,"k",MAXBUF);
 798                                                                 strlcpy(chan->key,"",MAXBUF);
 799                                                                 strlcpy(outpars[pc++],key,MAXBUF);
 800                                                         }
 801                                                 }
 802                                                 else param++;
 803                                         }
 804                                 break;
 805
 806                                 case 'l':
 807                                         if (mdir == 0)
 808                                         {
 809                                                 if (previously_set_l)
 810                                                         break;
 811                                                 previously_unset_l = true;
 812                                                 MOD_RESULT = 0;
 813                                                 FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'l', "", false, 0));
 814                                                 if (!MOD_RESULT)
 815                                                 {
 816                                                         if (chan->limit)
 817                                                         {
 818                                                                 strcat(outlist,"l");
 819                                                                 chan->limit = 0;
 820                                                         }
 821                                                 }
 822                                         }
 823
 824                                         if ((param >= pcnt)) break;
 825                                         if (mdir == 1)
 826                                         {
 827                                                 if (l_set)
 828                                                         break;
 829                                                 if (previously_unset_l)
 830                                                         break;
 831                                                 previously_set_l = true;
 832                                                 bool invalid = false;
 833                                                 for (unsigned int i = 0; i < strlen(parameters[param]); i++)
 834                                                 {
 835                                                         if ((parameters[param][i] < '0') || (parameters[param][i] > '9'))
 836                                                         {
 837                                                                 invalid = true;
 838                                                         }
 839                                                 }
 840                                                 if (atoi(parameters[param]) < 1)
 841                                                 {
 842                                                         invalid = true;
 843                                                 }
 844
 845                                                 if (invalid)
 846                                                         break;
 847
 848                                                 MOD_RESULT = 0;
 849                                                 FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'l', parameters[param], true, 1));
 850                                                 if (!MOD_RESULT)
 851                                                 {
 852
 853                                                         chan->limit = atoi(parameters[param]);
 854
 855                                                         // reported by mech: large values cause underflow
 856                                                         if (chan->limit < 0)
 857                                                                 chan->limit = 0x7FFF;
 858                                                 }
 859
 860                                                 if (chan->limit)
 861                                                 {
 862                                                         strlcat(outlist,"l",MAXBUF);
 863                                                         strlcpy(outpars[pc++],parameters[param++],MAXBUF);
 864                                                         l_set = true;
 865                                                 }
 866                                         }
 867                                 break;
 868
 869                                 case 'i':
 870                                         MOD_RESULT = 0;
 871                                         FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'i', "", mdir, 0));
 872                                         if (!MOD_RESULT)
 873                                         {
 874                                                 if (mdir)
 875                                                 {
 876                                                         if (!(chan->binarymodes & CM_INVITEONLY)) strlcat(outlist,"i",MAXBUF);
 877                                                         chan->binarymodes |= CM_INVITEONLY;
 878                                                 }
 879                                                 else
 880                                                 {
 881                                                         if (chan->binarymodes & CM_INVITEONLY) strlcat(outlist,"i",MAXBUF);
 882                                                         chan->binarymodes &= ~CM_INVITEONLY;
 883                                                 }
 884                                         }
 885                                 break;
 886
 887                                 case 't':
 888                                         MOD_RESULT = 0;
 889                                         FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 't', "", mdir, 0));
 890                                         if (!MOD_RESULT)
 891                                         {
 892                                                 if (mdir)
 893                                                 {
 894                                                         if (!(chan->binarymodes & CM_TOPICLOCK)) strlcat(outlist,"t",MAXBUF);
 895                                                         chan->binarymodes |= CM_TOPICLOCK;
 896                                                 }
 897                                                 else
 898                                                 {
 899                                                         if (chan->binarymodes & CM_NOEXTERNAL) strlcat(outlist,"t",MAXBUF);
 900                                                         chan->binarymodes &= ~CM_TOPICLOCK;
 901                                                 }
 902                                         }
 903                                 break;
 904
 905                                 case 'n':
 906                                         MOD_RESULT = 0;
 907                                         FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'n', "", mdir, 0));
 908                                         if (!MOD_RESULT)
 909                                         {
 910                                                 if (mdir)
 911                                                 {
 912                                                         if (!(chan->binarymodes & CM_NOEXTERNAL)) strlcat(outlist,"n",MAXBUF);
 913                                                         chan->binarymodes |= CM_NOEXTERNAL;
 914                                                 }
 915                                                 else
 916                                                 {
 917                                                         if (chan->binarymodes & CM_NOEXTERNAL) strlcat(outlist,"n",MAXBUF);
 918                                                         chan->binarymodes &= ~CM_NOEXTERNAL;
 919                                                 }
 920                                         }
 921                                 break;
 922
 923                                 case 'm':
 924                                         MOD_RESULT = 0;
 925                                         FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'm', "", mdir, 0));
 926                                         if (!MOD_RESULT)
 927                                         {
 928                                                 if (mdir)
 929                                                 {
 930                                                         if (!(chan->binarymodes & CM_MODERATED)) strlcat(outlist,"m",MAXBUF);
 931                                                         chan->binarymodes |= CM_MODERATED;
 932                                                 }
 933                                                 else
 934                                                 {
 935                                                         if (chan->binarymodes & CM_MODERATED) strlcat(outlist,"m",MAXBUF);
 936                                                         chan->binarymodes &= ~CM_MODERATED;
 937                                                 }
 938                                         }
 939                                 break;
 940
 941                                 case 's':
 942                                         MOD_RESULT = 0;
 943                                         FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 's', "", mdir, 0));
 944                                         if (!MOD_RESULT)
 945                                         {
 946                                                 if (mdir)
 947                                                 {
 948                                                         if (!(chan->binarymodes & CM_SECRET)) strlcat(outlist,"s",MAXBUF);
 949                                                         chan->binarymodes |= CM_SECRET;
 950                                                         if (chan->binarymodes & CM_PRIVATE)
 951                                                         {
 952                                                                 chan->binarymodes &= ~CM_PRIVATE;
 953                                                                 if (mdir)
 954                                                                 {
 955                                                                         strlcat(outlist,"-p+",MAXBUF);
 956                                                                 }
 957                                                         }
 958                                                 }
 959                                                 else
 960                                                 {
 961                                                         if (chan->binarymodes & CM_SECRET) strlcat(outlist,"s",MAXBUF);
 962                                                         chan->binarymodes &= ~CM_SECRET;
 963                                                 }
 964                                         }
 965                                 break;
 966
 967                                 case 'p':
 968                                         MOD_RESULT = 0;
 969                                         FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, 'p', "", mdir, 0));
 970                                         if (!MOD_RESULT)
 971                                         {
 972                                                 if (mdir)
 973                                                 {
 974                                                         if (!(chan->binarymodes & CM_PRIVATE)) strlcat(outlist,"p",MAXBUF);
 975                                                         chan->binarymodes |= CM_PRIVATE;
 976                                                         if (chan->binarymodes & CM_SECRET)
 977                                                         {
 978                                                                 chan->binarymodes &= ~CM_SECRET;
 979                                                                 if (mdir)
 980                                                                 {
 981                                                                         strlcat(outlist,"-s+",MAXBUF);
 982                                                                 }
 983                                                         }
 984                                                 }
 985                                                 else
 986                                                 {
 987                                                         if (chan->binarymodes & CM_PRIVATE) strlcat(outlist,"p",MAXBUF);
 988                                                         chan->binarymodes &= ~CM_PRIVATE;
 989                                                 }
 990                                         }
 991                                 break;
 992
 993                                 default:
 994                                         log(DEBUG,"Preprocessing custom mode %c: modelist: %s",modechar,chan->custom_modes);
 995                                         string_list p;
 996                                         p.clear();
 997                                         if (((!strchr(chan->custom_modes,modechar)) && (!mdir)) || ((strchr(chan->custom_modes,modechar)) && (mdir)))
 998                                         {
 999                                                 if (!ModeIsListMode(modechar,MT_CHANNEL))
1000                                                 {
1001                                                         log(DEBUG,"Mode %c isnt set on %s but trying to remove!",modechar,chan->name);
1002                                                         break;
1003                                                 }
1004                                         }
1005                                         if (ModeDefined(modechar,MT_CHANNEL))
1006                                         {
1007                                                 log(DEBUG,"A module has claimed this mode");
1008                                                 if (param<pcnt)
1009                                                 {
1010                                                         if ((ModeDefinedOn(modechar,MT_CHANNEL)>0) && (mdir))
1011                                                         {
1012                                                                 p.push_back(parameters[param]);
1013                                                         }
1014                                                         if ((ModeDefinedOff(modechar,MT_CHANNEL)>0) && (!mdir))
1015                                                         {
1016                                                                 p.push_back(parameters[param]);
1017                                                         }
1018                                                 }
1019                                                 bool handled = false;
1020                                                 if (param>=pcnt)
1021                                                 {
1022                                                         // we're supposed to have a parameter, but none was given... so dont handle the mode.
1023                                                         if (((ModeDefinedOn(modechar,MT_CHANNEL)>0) && (mdir)) || ((ModeDefinedOff(modechar,MT_CHANNEL)>0) && (!mdir)))
1024                                                         {
1025                                                                 log(DEBUG,"Not enough parameters for module-mode %c",modechar);
1026                                                                 handled = true;
1027                                                                 param++;
1028                                                         }
1029                                                 }
1030
1031                                                 // BIG ASS IDIOTIC CODER WARNING!
1032                                                 // Using OnRawMode on another modules mode's behavour
1033                                                 // will confuse the crap out of admins! just because you CAN
1034                                                 // do it, doesnt mean you SHOULD!
1035                                                 MOD_RESULT = 0;
1036                                                 std::string para = "";
1037                                                 if (p.size())
1038                                                         para = p[0];
1039                                                 FOREACH_RESULT(I_OnRawMode,OnRawMode(user, chan, modechar, para, mdir, pcnt));
1040                                                 if (!MOD_RESULT)
1041                                                 {
1042                                                         for (int i = 0; i <= MODCOUNT; i++)
1043                                                         {
1044                                                                 if (!handled)
1045                                                                 {
1046                                                                         int t = modules[i]->OnExtendedMode(user,chan,modechar,MT_CHANNEL,mdir,p);
1047                                                                         if (t != 0)
1048                                                                         {
1049                                                                                 log(DEBUG,"OnExtendedMode returned nonzero for a module");
1050                                                                                 char app[] = {modechar, 0};
1051                                                                                 if (ModeIsListMode(modechar,MT_CHANNEL))
1052                                                                                 {
1053                                                                                         if (t == -1)
1054                                                                                         {
1055                                                                                                 //pc++;
1056                                                                                                 param++;
1057                                                                                         }
1058                                                                                         else
1059                                                                                         {
1060                                                                                                 if (ptr>0)
1061                                                                                                 {
1062                                                                                                         strlcat(outlist, app,MAXBUF);
1063                                                                                                 }
1064                                                                                                 strlcpy(outpars[pc++],parameters[param++],MAXBUF);
1065                                                                                         }
1066                                                                                 }
1067                                                                                 else
1068                                                                                 {
1069                                                                                         if (ptr>0)
1070                                                                                         {
1071                                                                                                 if ((modelist[ptr-1] == '+') || (modelist[ptr-1] == '-'))
1072                                                                                                 {
1073                                                                                                         strlcat(outlist, app,MAXBUF);
1074                                                                                                 }
1075                                                                                                 else if (!strchr(outlist,modechar))
1076                                                                                                 {
1077                                                                                                         strlcat(outlist, app,MAXBUF);
1078                                                                                                 }
1079                                                                                         }
1080                                                                                         chan->SetCustomMode(modechar,mdir);
1081                                                                                         // include parameters in output if mode has them
1082                                                                                         if ((ModeDefinedOn(modechar,MT_CHANNEL)>0) && (mdir))
1083                                                                                         {
1084                                                                                                 chan->SetCustomModeParam(modelist[ptr],parameters[param],mdir);
1085                                                                                                 strlcpy(outpars[pc++],parameters[param++],MAXBUF);
1086                                                                                         }
1087                                                                                 }
1088                                                                                 // break, because only one module can handle the mode.
1089                                                                                 handled = true;
1090                                                                         }
1091                                                                 }
1092                                                         }
1093                                                 }
1094                                         }
1095                                         else
1096                                         {
1097                                                 WriteServ(user->fd,"472 %s %c :is unknown mode char to me",user->nick,modechar);
1098                                         }
1099                                 break;
1100
1101                         }
1102                 }
1103         }
1104
1105         /* this ensures only the *valid* modes are sent out onto the network */
1106         int xt = strlen(outlist)-1;
1107         while ((outlist[xt] == '-') || (outlist[xt] == '+'))
1108         {
1109                 outlist[xt] = '\0';
1110                 xt = strlen(outlist)-1;
1111         }
1112         if (outlist[0])
1113         {
1114                 strlcpy(outstr,outlist,MAXBUF);
1115                 for (ptr = 0; ptr < pc; ptr++)
1116                 {
1117                         strlcat(outstr," ",MAXBUF);
1118                         strlcat(outstr,outpars[ptr],MAXBUF);
1119                 }
1120                 if (local)
1121                 {
1122                         log(DEBUG,"Local mode change");
1123                         WriteChannelLocal(chan, user, "MODE %s %s",chan->name,outstr);
1124                         FOREACH_MOD(I_OnMode,OnMode(user, chan, TYPE_CHANNEL, outstr));
1125                 }
1126                 else
1127                 {
1128                         if (servermode)
1129                         {
1130                                 if (!silent)
1131                                 {
1132                                         WriteChannelWithServ(Config->ServerName,chan,"MODE %s %s",chan->name,outstr);
1133                                 }
1134
1135                         }
1136                         else
1137                         {
1138                                 if (!silent)
1139                                 {
1140                                         WriteChannel(chan,user,"MODE %s %s",chan->name,outstr);
1141                                         FOREACH_MOD(I_OnMode,OnMode(user, chan, TYPE_CHANNEL, outstr));
1142                                 }
1143                         }
1144                 }
1145         }
1146 }
1147
1148 // based on sourcemodes, return true or false to determine if umode is a valid mode a user may set on themselves or others.
1149
1150 bool ModeParser::AllowedUmode(char umode, char* sourcemodes,bool adding,bool serveroverride)
1151 {
1152         log(DEBUG,"Allowed_umode: %c %s",umode,sourcemodes);
1153         // Servers can +o and -o arbitrarily
1154         if ((serveroverride == true) && (umode == 'o'))
1155         {
1156                 return true;
1157         }
1158         // RFC1459 specified modes
1159         if ((umode == 'w') || (umode == 's') || (umode == 'i'))
1160         {
1161                 log(DEBUG,"umode %c allowed by RFC1459 scemantics",umode);
1162                 return true;
1163         }
1164
1165         // user may not +o themselves or others, but an oper may de-oper other opers or themselves
1166         if ((strchr(sourcemodes,'o')) && (!adding))
1167         {
1168                 log(DEBUG,"umode %c allowed by RFC1459 scemantics",umode);
1169                 return true;
1170         }
1171         else if (umode == 'o')
1172         {
1173                 log(DEBUG,"umode %c allowed by RFC1459 scemantics",umode);
1174                 return false;
1175         }
1176
1177         // process any module-defined modes that need oper
1178         if ((ModeDefinedOper(umode,MT_CLIENT)) && (strchr(sourcemodes,'o')))
1179         {
1180                 log(DEBUG,"umode %c allowed by module handler (oper only mode)",umode);
1181                 return true;
1182         }
1183         else
1184         if (ModeDefined(umode,MT_CLIENT))
1185         {
1186                 // process any module-defined modes that don't need oper
1187                 log(DEBUG,"umode %c allowed by module handler (non-oper mode)",umode);
1188                 if ((ModeDefinedOper(umode,MT_CLIENT)) && (!strchr(sourcemodes,'o')))
1189                 {
1190                         // no, this mode needs oper, and this user 'aint got what it takes!
1191                         return false;
1192                 }
1193                 return true;
1194         }
1195
1196         // anything else - return false.
1197         log(DEBUG,"umode %c not known by any ruleset",umode);
1198         return false;
1199 }
1200
1201 bool ModeParser::ProcessModuleUmode(char umode, userrec* source, void* dest, bool adding)
1202 {
1203         userrec* s2;
1204         bool faked = false;
1205         if (!source)
1206         {
1207                 s2 = new userrec;
1208                 strlcpy(s2->nick,Config->ServerName,NICKMAX);
1209                 strlcpy(s2->modes,"o",52);
1210                 s2->fd = -1;
1211                 source = s2;
1212                 faked = true;
1213         }
1214         string_list p;
1215         p.clear();
1216         if (ModeDefined(umode,MT_CLIENT))
1217         {
1218                 for (int i = 0; i <= MODCOUNT; i++)
1219                 {
1220                         if (modules[i]->OnExtendedMode(source,(void*)dest,umode,MT_CLIENT,adding,p))
1221                         {
1222                                 log(DEBUG,"Module %s claims umode %c",Config->module_names[i].c_str(),umode);
1223                                 return true;
1224                         }
1225                 }
1226                 log(DEBUG,"No module claims umode %c",umode);
1227                 if (faked)
1228                 {
1229                         delete s2;
1230                         source = NULL;
1231                 }
1232                 return false;
1233         }
1234         else
1235         {
1236                 if (faked)
1237                 {
1238                         delete s2;
1239                         source = NULL;
1240                 }
1241                 return false;
1242         }
1243 }
1244
1245 void cmd_mode::Handle (char **parameters, int pcnt, userrec *user)
1246 {
1247         chanrec* Ptr;
1248         userrec* dest;
1249         int can_change;
1250         int direction = 1;
1251         char outpars[MAXBUF];
1252
1253         dest = Find(parameters[0]);
1254
1255         if (!user)
1256         {
1257                 return;
1258         }
1259
1260         if ((dest) && (pcnt == 1))
1261         {
1262                 WriteServ(user->fd,"221 %s :+%s",dest->nick,dest->modes);
1263                 return;
1264         }
1265
1266         if ((dest) && (pcnt > 1))
1267         {
1268                 std::string tidied = ServerInstance->ModeGrok->CompressModes(parameters[1],false);
1269                 parameters[1] = (char*)tidied.c_str();
1270
1271                 char dmodes[MAXBUF];
1272                 strlcpy(dmodes,dest->modes,52);
1273                 log(DEBUG,"pulled up dest user modes: %s",dmodes);
1274
1275                 can_change = 0;
1276                 if (user != dest)
1277                 {
1278                         if ((strchr(user->modes,'o')) || (is_uline(user->server)))
1279                         {
1280                                 can_change = 1;
1281                         }
1282                 }
1283                 else
1284                 {
1285                         can_change = 1;
1286                 }
1287                 if (!can_change)
1288                 {
1289                         WriteServ(user->fd,"482 %s :Can't change mode for other users",user->nick);
1290                         return;
1291                 }
1292
1293                 outpars[0] = '+';
1294                 outpars[1] = 0;
1295                 direction = 1;
1296
1297                 if ((parameters[1][0] != '+') && (parameters[1][0] != '-'))
1298                         return;
1299
1300                 for (unsigned int i = 0; i < strlen(parameters[1]); i++)
1301                 {
1302                         if (parameters[1][i] == ' ')
1303                                 continue;
1304                         if (parameters[1][i] == '+')
1305                         {
1306                                 if (direction != 1)
1307                                 {
1308                                         int t = strlen(outpars)-1;
1309                                         if ((outpars[t] == '+') || (outpars[t] == '-'))
1310                                         {
1311                                                 outpars[t] = '+';
1312                                         }
1313                                         else
1314                                         {
1315                                                 strcat(outpars,"+");
1316                                         }
1317                                 }
1318                                 direction = 1;
1319                         }
1320                         else
1321                         if (parameters[1][i] == '-')
1322                         {
1323                                 if (direction != 0)
1324                                 {
1325                                         int t = strlen(outpars)-1;
1326                                         if ((outpars[t] == '+') || (outpars[t] == '-'))
1327                                         {
1328                                                 outpars[t] = '-';
1329                                         }
1330                                         else
1331                                         {
1332                                                 strcat(outpars,"-");
1333                                         }
1334                                 }
1335                                 direction = 0;
1336                         }
1337                         else
1338                         {
1339                                 can_change = 0;
1340                                 if (strchr(user->modes,'o'))
1341                                 {
1342                                         can_change = 1;
1343                                 }
1344                                 else
1345                                 {
1346                                         if ((parameters[1][i] == 'i') || (parameters[1][i] == 'w') || (parameters[1][i] == 's') || (ServerInstance->ModeGrok->AllowedUmode(parameters[1][i],user->modes,direction,false)))
1347                                         {
1348                                                 can_change = 1;
1349                                         }
1350                                 }
1351                                 if (can_change)
1352                                 {
1353                                         if (direction == 1)
1354                                         {
1355                                                 if ((!strchr(dmodes,parameters[1][i])) && (ServerInstance->ModeGrok->AllowedUmode(parameters[1][i],user->modes,true,false)))
1356                                                 {
1357                                                         char umode = parameters[1][i];
1358                                                         if ((ServerInstance->ModeGrok->ProcessModuleUmode(umode, user, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
1359                                                         {
1360                                                                 int q = strlen(dmodes);
1361                                                                 int r = strlen(outpars);
1362                                                                 dmodes[q+1]='\0';
1363                                                                 dmodes[q] = parameters[1][i];
1364                                                                 outpars[r+1]='\0';
1365                                                                 outpars[r] = parameters[1][i];
1366                                                                 if (parameters[1][i] == 'o')
1367                                                                 {
1368                                                                         FOREACH_MOD(I_OnGlobalOper,OnGlobalOper(dest));
1369                                                                 }
1370                                                         }
1371                                                 }
1372                                         }
1373                                         else
1374                                         {
1375                                                 if ((ServerInstance->ModeGrok->AllowedUmode(parameters[1][i],user->modes,false,false)) && (strchr(dmodes,parameters[1][i])))
1376                                                 {
1377                                                         char umode = parameters[1][i];
1378                                                         if ((ServerInstance->ModeGrok->ProcessModuleUmode(umode, user, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
1379                                                         {
1380                                                                 unsigned int q = 0;
1381                                                                 char temp[MAXBUF];
1382                                                                 char moo[MAXBUF];
1383
1384                                                                 unsigned int r = strlen(outpars);
1385                                                                 outpars[r+1]='\0';
1386                                                                 outpars[r] = parameters[1][i];
1387
1388                                                                 *temp = 0;
1389                                                                 for (q = 0; q < strlen(dmodes); q++)
1390                                                                 {
1391                                                                         if (dmodes[q] != parameters[1][i])
1392                                                                         {
1393                                                                                 moo[0] = dmodes[q];
1394                                                                                 moo[1] = '\0';
1395                                                                                 strlcat(temp,moo,MAXBUF);
1396                                                                         }
1397                                                                 }
1398                                                                 strlcpy(dmodes,temp,52);
1399
1400                                                                 if (umode == 'o')
1401                                                                         DeleteOper(dest);
1402                                                         }
1403                                                 }
1404                                         }
1405                                 }
1406                         }
1407                 }
1408                 if (outpars[0])
1409                 {
1410                         char b[MAXBUF];
1411                         strlcpy(b,"",MAXBUF);
1412                         unsigned int z = 0;
1413                         unsigned int i = 0;
1414                         while (i < strlen (outpars))
1415                         {
1416                                 b[z++] = outpars[i++];
1417                                 b[z] = '\0';
1418                                 if (i<strlen(outpars)-1)
1419                                 {
1420                                         if (((outpars[i] == '-') || (outpars[i] == '+')) && ((outpars[i+1] == '-') || (outpars[i+1] == '+')))
1421                                         {
1422                                                 // someones playing silly buggers and trying
1423                                                 // to put a +- or -+ into the line...
1424                                                 i++;
1425                                         }
1426                                 }
1427                                 if (i == strlen(outpars)-1)
1428                                 {
1429                                         if ((outpars[i] == '-') || (outpars[i] == '+'))
1430                                         {
1431                                                 i++;
1432                                         }
1433                                 }
1434                         }
1435
1436                         z = strlen(b)-1;
1437                         if ((b[z] == '-') || (b[z] == '+'))
1438                                 b[z] = '\0';
1439
1440                         if ((!b[0]) || (!strcmp(b,"+")) || (!strcmp(b,"-")))
1441                                 return;
1442
1443                         if (strcmp(b,""))
1444                         {
1445                                 WriteTo(user, dest, "MODE %s :%s", dest->nick, b);
1446                                 FOREACH_MOD(I_OnMode,OnMode(user, dest, TYPE_USER, b));
1447                         }
1448
1449                         if (strlen(dmodes)>MAXMODES)
1450                         {
1451                                 dmodes[MAXMODES-1] = '\0';
1452                         }
1453                         log(DEBUG,"Stripped mode line");
1454                         log(DEBUG,"Line dest is now %s",dmodes);
1455                         strlcpy(dest->modes,dmodes,52);
1456
1457                 }
1458
1459                 return;
1460         }
1461
1462         Ptr = FindChan(parameters[0]);
1463         if (Ptr)
1464         {
1465                 if (pcnt == 1)
1466                 {
1467                         /* just /modes #channel */
1468                         WriteServ(user->fd,"324 %s %s +%s",user->nick, Ptr->name, chanmodes(Ptr));
1469                         WriteServ(user->fd,"329 %s %s %d", user->nick, Ptr->name, Ptr->created);
1470                         return;
1471                 }
1472                 else
1473                 if (pcnt == 2)
1474                 {
1475                         char* mode = parameters[1];
1476                         if (*mode == '+')
1477                                 mode++;
1478                         int MOD_RESULT = 0;
1479                         FOREACH_RESULT(I_OnRawMode,OnRawMode(user, Ptr, *mode, "", false, 0));
1480                         if (!MOD_RESULT)
1481                         {
1482                                 if (*mode == 'b')
1483                                 {
1484
1485                                         for (BanList::iterator i = Ptr->bans.begin(); i != Ptr->bans.end(); i++)
1486                                         {
1487                                                 WriteServ(user->fd,"367 %s %s %s %s %d",user->nick, Ptr->name, i->data, i->set_by, i->set_time);
1488                                         }
1489                                         WriteServ(user->fd,"368 %s %s :End of channel ban list",user->nick, Ptr->name);
1490                                         return;
1491                                 }
1492                                 if ((ModeDefined(*mode,MT_CHANNEL)) && (ModeIsListMode(*mode,MT_CHANNEL)))
1493                                 {
1494                                         // list of items for an extmode
1495                                         log(DEBUG,"Calling OnSendList for all modules, list output for mode %c",*mode);
1496                                         FOREACH_MOD(I_OnSendList,OnSendList(user,Ptr,*mode));
1497                                         return;
1498                                 }
1499                         }
1500                 }
1501
1502                 if (((Ptr) && (!has_channel(user,Ptr))) && (!is_uline(user->server)))
1503                 {
1504                         WriteServ(user->fd,"442 %s %s :You're not on that channel!",user->nick, Ptr->name);
1505                         return;
1506                 }
1507
1508                 if (Ptr)
1509                 {
1510                         int MOD_RESULT = 0;
1511                         FOREACH_RESULT(I_OnAccessCheck,OnAccessCheck(user,NULL,Ptr,AC_GENERAL_MODE));
1512
1513                         if (MOD_RESULT == ACR_DENY)
1514                                 return;
1515                         if (MOD_RESULT == ACR_DEFAULT)
1516                         {
1517                                 if (cstatus(user,Ptr) < STATUS_HOP)
1518                                 {
1519                                         WriteServ(user->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel",user->nick, Ptr->name);
1520                                         return;
1521                                 }
1522                         }
1523
1524                         ServerInstance->ModeGrok->ProcessModes(parameters,user,Ptr,cstatus(user,Ptr),pcnt,false,false,false);
1525                 }
1526         }
1527         else
1528         {
1529                 WriteServ(user->fd,"401 %s %s :No such nick/channel",user->nick, parameters[0]);
1530         }
1531 }
1532
1533
1534
1535
1536 void ModeParser::ServerMode(char **parameters, int pcnt, userrec *user)
1537 {
1538         chanrec* Ptr;
1539         userrec* dest;
1540         int can_change;
1541         int direction = 1;
1542         char outpars[MAXBUF];
1543
1544         dest = Find(parameters[0]);
1545
1546         // fix: ChroNiCk found this - we cant use this as debug if its null!
1547         if (dest)
1548         {
1549                 log(DEBUG,"server_mode on %s",dest->nick);
1550         }
1551
1552         if ((dest) && (pcnt > 1))
1553         {
1554                 std::string tidied = ServerInstance->ModeGrok->CompressModes(parameters[1],false);
1555                 parameters[1] = (char*)tidied.c_str();
1556
1557                 char dmodes[MAXBUF];
1558                 strlcpy(dmodes,dest->modes,52);
1559
1560                 outpars[0] = '+';
1561                 outpars[1] = 0;
1562                 direction = 1;
1563
1564                 if ((parameters[1][0] != '+') && (parameters[1][0] != '-'))
1565                         return;
1566
1567                 for (unsigned int i = 0; i < strlen(parameters[1]); i++)
1568                 {
1569                         if (parameters[1][i] == ' ')
1570                                 continue;
1571                         if (parameters[1][i] == '+')
1572                         {
1573                                 if (direction != 1)
1574                                 {
1575                                         int t = strlen(outpars)-1;
1576                                         if ((outpars[t] == '+') || (outpars[t] == '-'))
1577                                         {
1578                                                 outpars[t] = '+';
1579                                         }
1580                                         else
1581                                         {
1582                                                 strcat(outpars,"+");
1583                                         }
1584                                 }
1585                                 direction = 1;
1586                         }
1587                         else
1588                         if (parameters[1][i] == '-')
1589                         {
1590                                 if (direction != 0)
1591                                 {
1592                                         int t = strlen(outpars)-1;
1593                                         if ((outpars[t] == '+') || (outpars[t] == '-'))
1594                                         {
1595                                                 outpars[t] = '-';
1596                                         }
1597                                         else
1598                                         {
1599                                                 strcat(outpars,"-");
1600                                         }
1601                                 }
1602                                 direction = 0;
1603                         }
1604                         else
1605                         {
1606                                 log(DEBUG,"begin mode processing entry");
1607                                 can_change = 1;
1608                                 if (can_change)
1609                                 {
1610                                         if (direction == 1)
1611                                         {
1612                                                 log(DEBUG,"umode %c being added",parameters[1][i]);
1613                                                 if ((!strchr(dmodes,parameters[1][i])) && (ServerInstance->ModeGrok->AllowedUmode(parameters[1][i],user->modes,true,true)))
1614                                                 {
1615                                                         char umode = parameters[1][i];
1616                                                         log(DEBUG,"umode %c is an allowed umode",umode);
1617                                                         if ((ServerInstance->ModeGrok->ProcessModuleUmode(umode, user, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
1618                                                         {
1619                                                                 int v1 = strlen(dmodes);
1620                                                                 int v2 = strlen(outpars);
1621                                                                 dmodes[v1+1]='\0';
1622                                                                 dmodes[v1] = parameters[1][i];
1623                                                                 outpars[v2+1]='\0';
1624                                                                 outpars[v2] = parameters[1][i];
1625                                                         }
1626                                                 }
1627                                         }
1628                                         else
1629                                         {
1630                                                 // can only remove a mode they already have
1631                                                 log(DEBUG,"umode %c being removed",parameters[1][i]);
1632                                                 if ((ServerInstance->ModeGrok->AllowedUmode(parameters[1][i],user->modes,false,true)) && (strchr(dmodes,parameters[1][i])))
1633                                                 {
1634                                                         char umode = parameters[1][i];
1635                                                         log(DEBUG,"umode %c is an allowed umode",umode);
1636                                                         if ((ServerInstance->ModeGrok->ProcessModuleUmode(umode, user, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
1637                                                         {
1638                                                                 unsigned int q = 0;
1639                                                                 char temp[MAXBUF];
1640                                                                 char moo[MAXBUF];
1641
1642                                                                 unsigned int v1 = strlen(outpars);
1643                                                                 outpars[v1+1]='\0';
1644                                                                 outpars[v1] = parameters[1][i];
1645                                                                 *temp = 0;
1646                                                                 for (q = 0; q < strlen(dmodes); q++)
1647                                                                 {
1648                                                                         if (dmodes[q] != parameters[1][i])
1649                                                                         {
1650                                                                                 moo[0] = dmodes[q];
1651                                                                                 moo[1] = '\0';
1652                                                                                 strlcat(temp,moo,MAXBUF);
1653                                                                         }
1654                                                                 }
1655                                                                 strlcpy(dmodes,temp,52);
1656                                                         }
1657                                                 }
1658                                         }
1659                                 }
1660                         }
1661                 }
1662                 if (outpars[0])
1663                 {
1664                         char b[MAXBUF];
1665                         strlcpy(b,"",MAXBUF);
1666                         unsigned int z = 0;
1667                         unsigned int i = 0;
1668                         while (i < strlen (outpars))
1669                         {
1670                                 b[z++] = outpars[i++];
1671                                 b[z] = '\0';
1672                                 if (i<strlen(outpars)-1)
1673                                 {
1674                                         if (((outpars[i] == '-') || (outpars[i] == '+')) && ((outpars[i+1] == '-') || (outpars[i+1] == '+')))
1675                                         {
1676                                                 // someones playing silly buggers and trying
1677                                                 // to put a +- or -+ into the line...
1678                                                 i++;
1679                                         }
1680                                 }
1681                                 if (i == strlen(outpars)-1)
1682                                 {
1683                                         if ((outpars[i] == '-') || (outpars[i] == '+'))
1684                                         {
1685                                                 i++;
1686                                         }
1687                                 }
1688                         }
1689
1690                         z = strlen(b)-1;
1691                         if ((b[z] == '-') || (b[z] == '+'))
1692                                 b[z] = '\0';
1693
1694                         if ((!b[0]) || (!strcmp(b,"+")) || (!strcmp(b,"-")))
1695                                 return;
1696
1697                         if (strcmp(b,""))
1698                         {
1699                                 WriteTo(user, dest, "MODE %s :%s", dest->nick, b);
1700                                 FOREACH_MOD(I_OnMode,OnMode(user, dest, TYPE_USER, b));
1701                         }
1702
1703                         if (strlen(dmodes)>MAXMODES)
1704                         {
1705                                 dmodes[MAXMODES-1] = '\0';
1706                         }
1707                         log(DEBUG,"Stripped mode line");
1708                         log(DEBUG,"Line dest is now %s",dmodes);
1709                         strlcpy(dest->modes,dmodes,MAXMODES);
1710
1711                 }
1712
1713                 return;
1714         }
1715
1716         Ptr = FindChan(parameters[0]);
1717         if (Ptr)
1718         {
1719                 ServerInstance->ModeGrok->ProcessModes(parameters,user,Ptr,STATUS_OP,pcnt,true,false,false);
1720         }
1721         else
1722         {
1723                 WriteServ(user->fd,"401 %s %s :No such nick/channel",user->nick, parameters[0]);
1724         }
1725 }