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 #include "inspircd.h"
  18 #include "inspircd_io.h"
  19 #include "inspircd_util.h"
  20 #include "inspircd_config.h"
  21 #include <unistd.h>
  22 #include <fcntl.h>
  23 #include <sys/errno.h>
  24 #include <sys/ioctl.h>
  25 #include <sys/utsname.h>
  26 #include <cstdio>
  27 #include <time.h>
  28 #include <string>
  29 #ifdef GCC3
  30 #include <ext/hash_map>
  31 #else
  32 #include <hash_map>
  33 #endif
  34 #include <map>
  35 #include <sstream>
  36 #include <vector>
  37 #include <errno.h>
  38 #include <deque>
  39 #include <errno.h>
  40 #include <unistd.h>
  41 #include <sched.h>
  42 #include "connection.h"
  43 #include "users.h"
  44 #include "servers.h"
  45 #include "ctables.h"
  46 #include "globals.h"
  47 #include "modules.h"
  48 #include "dynamic.h"
  49 #include "wildcard.h"
  50 #include "message.h"
  51 #include "commands.h"
  52 #include "xline.h"
  53 #include "inspstring.h"
  54
  55 using namespace std;
  56
  57 extern int MODCOUNT;
  58 extern std::vector<Module*> modules;
  59 extern std::vector<ircd_module*> factory;
  60 extern std::vector<std::string> module_names;
  61
  62
  63 extern int LogLevel;
  64 extern char ServerName[MAXBUF];
  65 extern char Network[MAXBUF];
  66 extern char ServerDesc[MAXBUF];
  67 extern char AdminName[MAXBUF];
  68 extern char AdminEmail[MAXBUF];
  69 extern char AdminNick[MAXBUF];
  70 extern char diepass[MAXBUF];
  71 extern char restartpass[MAXBUF];
  72 extern char motd[MAXBUF];
  73 extern char rules[MAXBUF];
  74 extern char list[MAXBUF];
  75 extern char PrefixQuit[MAXBUF];
  76 extern char DieValue[MAXBUF];
  77
  78 extern bool AllowHalfop;
  79 extern bool AllowProtect;
  80 extern bool AllowFounder;
  81
  82 extern time_t TIME;
  83
  84 char* give_ops(userrec *user,char *dest,chanrec *chan,int status)
  85 {
  86         userrec *d;
  87         int i;
  88
  89         if ((!user) || (!dest) || (!chan))
  90         {
  91                 log(DEFAULT,"*** BUG *** give_ops was given an invalid parameter");
  92                 return NULL;
  93         }
  94
  95         if (!isnick(dest))
  96         {
  97                 log(DEFAULT,"the target nickname given to give_ops was invalid");
  98                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
  99                 return NULL;
 100         }
 101         d = Find(dest);
 102         if (!d)
 103         {
 104                 log(DEFAULT,"the target nickname given to give_ops couldnt be found");
 105                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
 106                 return NULL;
 107         }
 108         else
 109         {
 110
 111                 int MOD_RESULT = 0;
 112                 FOREACH_RESULT(OnAccessCheck(user,d,chan,AC_OP));
 113
 114                 if (MOD_RESULT == ACR_DENY)
 115                         return NULL;
 116                 if (MOD_RESULT == ACR_DEFAULT)
 117                 {
 118                         if ((status < STATUS_OP) && (!is_uline(user->server)))
 119                         {
 120                                 log(DEBUG,"%s cant give ops to %s because they nave status %d and needs %d",user->nick,dest,status,STATUS_OP);
 121                                 WriteServ(user->fd,"482 %s %s :You're not a channel operator",user->nick, chan->name);
 122                                 return NULL;
 123                         }
 124                 }
 125
 126
 127                 for (int i = 0; i != MAXCHANS; i++)
 128                 {
 129                         if ((d->chans[i].channel != NULL) && (chan != NULL))
 130                         if (!strcasecmp(d->chans[i].channel->name,chan->name))
 131                         {
 132                         if (d->chans[i].uc_modes & UCMODE_OP)
 133                                 {
 134                                         /* mode already set on user, dont allow multiple */
 135                                         log(DEFAULT,"The target user given to give_ops was already opped on the channel");
 136                                         return NULL;
 137                                 }
 138                                 d->chans[i].uc_modes = d->chans[i].uc_modes | UCMODE_OP;
 139                                 log(DEBUG,"gave ops: %s %s",d->chans[i].channel->name,d->nick);
 140                                 return d->nick;
 141                         }
 142                 }
 143                 log(DEFAULT,"The target channel given to give_ops was not in the users mode list");
 144         }
 145         return NULL;
 146 }
 147
 148 char* give_hops(userrec *user,char *dest,chanrec *chan,int status)
 149 {
 150         userrec *d;
 151         int i;
 152
 153         if ((!user) || (!dest) || (!chan))
 154         {
 155                 log(DEFAULT,"*** BUG *** give_hops was given an invalid parameter");
 156                 return NULL;
 157         }
 158
 159         d = Find(dest);
 160         if (!isnick(dest))
 161         {
 162                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
 163                 return NULL;
 164         }
 165         if (!d)
 166         {
 167                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
 168                 return NULL;
 169         }
 170         else
 171         {
 172                 int MOD_RESULT = 0;
 173                 FOREACH_RESULT(OnAccessCheck(user,d,chan,AC_HALFOP));
 174
 175                 if (MOD_RESULT == ACR_DENY)
 176                         return NULL;
 177                 if (MOD_RESULT == ACR_DEFAULT)
 178                 {
 179                         if ((status < STATUS_OP) && (!is_uline(user->server)))
 180                         {
 181                                 WriteServ(user->fd,"482 %s %s :You're not a channel operator",user->nick, chan->name);
 182                                 return NULL;
 183                         }
 184                 }
 185
 186                 for (int i = 0; i != MAXCHANS; i++)
 187                 {
 188                         if ((d->chans[i].channel != NULL) && (chan != NULL))
 189                         if (!strcasecmp(d->chans[i].channel->name,chan->name))
 190                         {
 191                                 if (d->chans[i].uc_modes & UCMODE_HOP)
 192                                 {
 193                                         /* mode already set on user, dont allow multiple */
 194                                         return NULL;
 195                                 }
 196                                 d->chans[i].uc_modes = d->chans[i].uc_modes | UCMODE_HOP;
 197                                 log(DEBUG,"gave h-ops: %s %s",d->chans[i].channel->name,d->nick);
 198                                 return d->nick;
 199                         }
 200                 }
 201         }
 202         return NULL;
 203 }
 204
 205 char* give_voice(userrec *user,char *dest,chanrec *chan,int status)
 206 {
 207         userrec *d;
 208         int i;
 209
 210         if ((!user) || (!dest) || (!chan))
 211         {
 212                 log(DEFAULT,"*** BUG *** give_voice was given an invalid parameter");
 213                 return NULL;
 214         }
 215
 216         d = Find(dest);
 217         if (!isnick(dest))
 218         {
 219                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
 220                 return NULL;
 221         }
 222         if (!d)
 223         {
 224                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
 225                 return NULL;
 226         }
 227         else
 228         {
 229                 int MOD_RESULT = 0;
 230                 FOREACH_RESULT(OnAccessCheck(user,d,chan,AC_VOICE));
 231
 232                 if (MOD_RESULT == ACR_DENY)
 233                         return NULL;
 234                 if (MOD_RESULT == ACR_DEFAULT)
 235                 {
 236                         if ((status < STATUS_HOP) && (!is_uline(user->server)))
 237                         {
 238                                 WriteServ(user->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel",user->nick, chan->name);
 239                                 return NULL;
 240                         }
 241                 }
 242
 243                 for (int i = 0; i != MAXCHANS; i++)
 244                 {
 245                         if ((d->chans[i].channel != NULL) && (chan != NULL))
 246                         if (!strcasecmp(d->chans[i].channel->name,chan->name))
 247                         {
 248                                 if (d->chans[i].uc_modes & UCMODE_VOICE)
 249                                 {
 250                                         /* mode already set on user, dont allow multiple */
 251                                         return NULL;
 252                                 }
 253                                 d->chans[i].uc_modes = d->chans[i].uc_modes | UCMODE_VOICE;
 254                                 log(DEBUG,"gave voice: %s %s",d->chans[i].channel->name,d->nick);
 255                                 return d->nick;
 256                         }
 257                 }
 258         }
 259         return NULL;
 260 }
 261
 262 char* take_ops(userrec *user,char *dest,chanrec *chan,int status)
 263 {
 264         userrec *d;
 265         int i;
 266
 267         if ((!user) || (!dest) || (!chan))
 268         {
 269                 log(DEFAULT,"*** BUG *** take_ops was given an invalid parameter");
 270                 return NULL;
 271         }
 272
 273         d = Find(dest);
 274         if (!isnick(dest))
 275         {
 276                 log(DEBUG,"take_ops was given an invalid target nickname of %s",dest);
 277                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
 278                 return NULL;
 279         }
 280         if (!d)
 281         {
 282                 log(DEBUG,"take_ops couldnt resolve the target nickname: %s",dest);
 283                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
 284                 return NULL;
 285         }
 286         else
 287         {
 288                 int MOD_RESULT = 0;
 289                 FOREACH_RESULT(OnAccessCheck(user,d,chan,AC_DEOP));
 290
 291                 if (MOD_RESULT == ACR_DENY)
 292                         return NULL;
 293                 if (MOD_RESULT == ACR_DEFAULT)
 294                 {
 295                         if ((status < STATUS_OP) && (!is_uline(user->server)))
 296                         {
 297                                 WriteServ(user->fd,"482 %s %s :You are not a channel operator",user->nick, chan->name);
 298                                 return NULL;
 299                         }
 300                 }
 301
 302                 for (int i = 0; i != MAXCHANS; i++)
 303                 {
 304                         if ((d->chans[i].channel != NULL) && (chan != NULL))
 305                         if (!strcasecmp(d->chans[i].channel->name,chan->name))
 306                         {
 307                                 if ((d->chans[i].uc_modes & UCMODE_OP) == 0)
 308                                 {
 309                                         /* mode already set on user, dont allow multiple */
 310                                         return NULL;
 311                                 }
 312                                 d->chans[i].uc_modes ^= UCMODE_OP;
 313                                 log(DEBUG,"took ops: %s %s",d->chans[i].channel->name,d->nick);
 314                                 return d->nick;
 315                         }
 316                 }
 317                 log(DEBUG,"take_ops couldnt locate the target channel in the target users list");
 318         }
 319         return NULL;
 320 }
 321
 322 char* take_hops(userrec *user,char *dest,chanrec *chan,int status)
 323 {
 324         userrec *d;
 325         int i;
 326
 327         if ((!user) || (!dest) || (!chan))
 328         {
 329                 log(DEFAULT,"*** BUG *** take_hops was given an invalid parameter");
 330                 return NULL;
 331         }
 332
 333         d = Find(dest);
 334         if (!isnick(dest))
 335         {
 336                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
 337                 return NULL;
 338         }
 339         if (!d)
 340         {
 341                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
 342                 return NULL;
 343         }
 344         else
 345         {
 346                 int MOD_RESULT = 0;
 347                 FOREACH_RESULT(OnAccessCheck(user,d,chan,AC_DEHALFOP));
 348
 349                 if (MOD_RESULT == ACR_DENY)
 350                         return NULL;
 351                 if (MOD_RESULT == ACR_DEFAULT)
 352                 {
 353                         if ((status < STATUS_OP) && (!is_uline(user->server)))
 354                         {
 355                                 WriteServ(user->fd,"482 %s %s :You are not a channel operator",user->nick, chan->name);
 356                                 return NULL;
 357                         }
 358                 }
 359
 360                 for (int i = 0; i != MAXCHANS; i++)
 361                 {
 362                         if ((d->chans[i].channel != NULL) && (chan != NULL))
 363                         if (!strcasecmp(d->chans[i].channel->name,chan->name))
 364                         {
 365                                 if ((d->chans[i].uc_modes & UCMODE_HOP) == 0)
 366                                 {
 367                                         /* mode already set on user, dont allow multiple */
 368                                         return NULL;
 369                                 }
 370                                 d->chans[i].uc_modes ^= UCMODE_HOP;
 371                                 log(DEBUG,"took h-ops: %s %s",d->chans[i].channel->name,d->nick);
 372                                 return d->nick;
 373                         }
 374                 }
 375         }
 376         return NULL;
 377 }
 378
 379 char* take_voice(userrec *user,char *dest,chanrec *chan,int status)
 380 {
 381         userrec *d;
 382         int i;
 383
 384         if ((!user) || (!dest) || (!chan))
 385         {
 386                 log(DEFAULT,"*** BUG *** take_voice was given an invalid parameter");
 387                 return NULL;
 388         }
 389
 390         d = Find(dest);
 391         if (!isnick(dest))
 392         {
 393                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
 394                 return NULL;
 395         }
 396         if (!d)
 397         {
 398                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
 399                 return NULL;
 400         }
 401         else
 402         {
 403                 int MOD_RESULT = 0;
 404                 FOREACH_RESULT(OnAccessCheck(user,d,chan,AC_DEVOICE));
 405
 406                 if (MOD_RESULT == ACR_DENY)
 407                         return NULL;
 408                 if (MOD_RESULT == ACR_DEFAULT)
 409                 {
 410                         if ((status < STATUS_HOP) && (!is_uline(user->server)))
 411                         {
 412                                 WriteServ(user->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel",user->nick, chan->name);
 413                                 return NULL;
 414                         }
 415                 }
 416
 417                 for (int i = 0; i != MAXCHANS; i++)
 418                 {
 419                         if ((d->chans[i].channel != NULL) && (chan != NULL))
 420                         if (!strcasecmp(d->chans[i].channel->name,chan->name))
 421                         {
 422                                 if ((d->chans[i].uc_modes & UCMODE_VOICE) == 0)
 423                                 {
 424                                         /* mode already set on user, dont allow multiple */
 425                                         return NULL;
 426                                 }
 427                                 d->chans[i].uc_modes ^= UCMODE_VOICE;
 428                                 log(DEBUG,"took voice: %s %s",d->chans[i].channel->name,d->nick);
 429                                 return d->nick;
 430                         }
 431                 }
 432         }
 433         return NULL;
 434 }
 435
 436 char* add_ban(userrec *user,char *dest,chanrec *chan,int status)
 437 {
 438         if ((!user) || (!dest) || (!chan)) {
 439                 log(DEFAULT,"*** BUG *** add_ban was given an invalid parameter");
 440                 return NULL;
 441         }
 442
 443         BanItem b;
 444         if ((!user) || (!dest) || (!chan))
 445                 return NULL;
 446         if (strchr(dest,'!')==0)
 447                 return NULL;
 448         if (strchr(dest,'@')==0)
 449                 return NULL;
 450         for (int i = 0; i < strlen(dest); i++)
 451                 if (dest[i] < 32)
 452                         return NULL;
 453         for (int i = 0; i < strlen(dest); i++)
 454                 if (dest[i] > 126)
 455                         return NULL;
 456         int c = 0;
 457         for (int i = 0; i < strlen(dest); i++)
 458                 if (dest[i] == '!')
 459                         c++;
 460         if (c>1)
 461                 return NULL;
 462         c = 0;
 463         for (int i = 0; i < strlen(dest); i++)
 464                 if (dest[i] == '@')
 465                         c++;
 466         if (c>1)
 467                 return NULL;
 468
 469         long maxbans = GetMaxBans(chan->name);
 470         if (chan->bans.size() > maxbans)
 471         {
 472                 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);
 473                 return NULL;
 474         }
 475
 476         log(DEBUG,"add_ban: %s %s",chan->name,user->nick);
 477
 478         TidyBan(dest);
 479         for (BanList::iterator i = chan->bans.begin(); i != chan->bans.end(); i++)
 480         {
 481                 if (!strcasecmp(i->data,dest))
 482                 {
 483                         // dont allow a user to set the same ban twice
 484                         return NULL;
 485                 }
 486         }
 487
 488         b.set_time = TIME;
 489         strncpy(b.data,dest,MAXBUF);
 490         strncpy(b.set_by,user->nick,NICKMAX);
 491         chan->bans.push_back(b);
 492         return dest;
 493 }
 494
 495 char* take_ban(userrec *user,char *dest,chanrec *chan,int status)
 496 {
 497         if ((!user) || (!dest) || (!chan)) {
 498                 log(DEFAULT,"*** BUG *** take_ban was given an invalid parameter");
 499                 return 0;
 500         }
 501
 502         log(DEBUG,"del_ban: %s %s",chan->name,user->nick);
 503         for (BanList::iterator i = chan->bans.begin(); i != chan->bans.end(); i++)
 504         {
 505                 if (!strcasecmp(i->data,dest))
 506                 {
 507                         chan->bans.erase(i);
 508                         return dest;
 509                 }
 510         }
 511         return NULL;
 512 }
 513
 514 void process_modes(char **parameters,userrec* user,chanrec *chan,int status, int pcnt, bool servermode, bool silent, bool local)
 515 {
 516         if (!parameters) {
 517                 log(DEFAULT,"*** BUG *** process_modes was given an invalid parameter");
 518                 return;
 519         }
 520
 521         char modelist[MAXBUF];
 522         char outlist[MAXBUF];
 523         char outstr[MAXBUF];
 524         char outpars[32][MAXBUF];
 525         int param = 2;
 526         int pc = 0;
 527         int ptr = 0;
 528         int mdir = 1;
 529         char* r = NULL;
 530         bool k_set = false, l_set = false;
 531
 532         if (pcnt < 2)
 533         {
 534                 return;
 535         }
 536
 537         int MOD_RESULT = 0;
 538         FOREACH_RESULT(OnAccessCheck(user,NULL,chan,AC_GENERAL_MODE));
 539
 540         if (MOD_RESULT == ACR_DENY)
 541                 return;
 542
 543         log(DEBUG,"process_modes: start: parameters=%d",pcnt);
 544
 545         strlcpy(modelist,parameters[1],MAXBUF); /* mode list, e.g. +oo-o *
 546                                                  * parameters[2] onwards are parameters for
 547                                                  * modes that require them :) */
 548         strlcpy(outlist,"+",MAXBUF);
 549         mdir = 1;
 550
 551         log(DEBUG,"process_modes: modelist: %s",modelist);
 552
 553         for (ptr = 0; ptr < strlen(modelist); ptr++)
 554         {
 555                 r = NULL;
 556
 557                 {
 558                         log(DEBUG,"process_modes: modechar: %c",modelist[ptr]);
 559
 560                         char modechar = modelist[ptr];
 561                         switch (modelist[ptr])
 562                         {
 563                                 case '-':
 564                                         if (mdir != 0)
 565                                         {
 566                                                 if ((outlist[strlen(outlist)-1] == '+') || (outlist[strlen(outlist)-1] == '-'))
 567                                                 {
 568                                                         outlist[strlen(outlist)-1] = '-';
 569                                                 }
 570                                                 else
 571                                                 {
 572                                                         strcat(outlist,"-");
 573                                                 }
 574                                         }
 575                                         mdir = 0;
 576
 577                                 break;
 578
 579                                 case '+':
 580                                         if (mdir != 1)
 581                                         {
 582                                                 if ((outlist[strlen(outlist)-1] == '+') || (outlist[strlen(outlist)-1] == '-'))
 583                                                 {
 584                                                         outlist[strlen(outlist)-1] = '+';
 585                                                 }
 586                                                 else
 587                                                 {
 588                                                         strcat(outlist,"+");
 589                                                 }
 590                                         }
 591                                         mdir = 1;
 592                                 break;
 593
 594                                 case 'o':
 595                                         log(DEBUG,"Ops");
 596                                         if ((param >= pcnt)) break;
 597                                         log(DEBUG,"Enough parameters left");
 598                                         if (mdir == 1)
 599                                         {
 600                                                 MOD_RESULT = 0;
 601                                                 FOREACH_RESULT(OnRawMode(user, chan, 'o', parameters[param], true, 1));
 602                                                 if (!MOD_RESULT)
 603                                                 {
 604                                                         log(DEBUG,"calling give_ops");
 605                                                         r = give_ops(user,parameters[param++],chan,status);
 606                                                 }
 607                                                 else param++;
 608                                         }
 609                                         else
 610                                         {
 611                                                 MOD_RESULT = 0;
 612                                                 FOREACH_RESULT(OnRawMode(user, chan, 'o', parameters[param], false, 1));
 613                                                 if (!MOD_RESULT)
 614                                                 {
 615                                                         log(DEBUG,"calling take_ops");
 616                                                         r = take_ops(user,parameters[param++],chan,status);
 617                                                 }
 618                                                 else param++;
 619                                         }
 620                                         if (r)
 621                                         {
 622                                                 strlcat(outlist,"o",MAXBUF);
 623                                                 strlcpy(outpars[pc++],r,MAXBUF);
 624                                         }
 625                                 break;
 626
 627                                 case 'h':
 628                                         if (((param >= pcnt)) || (!AllowHalfop)) break;
 629                                         if (mdir == 1)
 630                                         {
 631                                                 MOD_RESULT = 0;
 632                                                 FOREACH_RESULT(OnRawMode(user, chan, 'h', parameters[param], true, 1));
 633                                                 if (!MOD_RESULT)
 634                                                 {
 635                                                         r = give_hops(user,parameters[param++],chan,status);
 636                                                 }
 637                                                 else param++;
 638                                         }
 639                                         else
 640                                         {
 641                                                 MOD_RESULT = 0;
 642                                                 FOREACH_RESULT(OnRawMode(user, chan, 'h', parameters[param], false, 1));
 643                                                 if (!MOD_RESULT)
 644                                                 {
 645                                                         r = take_hops(user,parameters[param++],chan,status);
 646                                                 }
 647                                                 else param++;
 648                                         }
 649                                         if (r)
 650                                         {
 651                                                 strlcat(outlist,"h",MAXBUF);
 652                                                 strlcpy(outpars[pc++],r,MAXBUF);
 653                                         }
 654                                 break;
 655
 656
 657                                 case 'v':
 658                                         if ((param >= pcnt)) break;
 659                                         if (mdir == 1)
 660                                         {
 661                                                 MOD_RESULT = 0;
 662                                                 FOREACH_RESULT(OnRawMode(user, chan, 'v', parameters[param], true, 1));
 663                                                 if (!MOD_RESULT)
 664                                                 {
 665                                                         r = give_voice(user,parameters[param++],chan,status);
 666                                                 }
 667                                                 else param++;
 668                                         }
 669                                         else
 670                                         {
 671                                                 MOD_RESULT = 0;
 672                                                 FOREACH_RESULT(OnRawMode(user, chan, 'v', parameters[param], false, 1));
 673                                                 if (!MOD_RESULT)
 674                                                 {
 675                                                         r = take_voice(user,parameters[param++],chan,status);
 676                                                 }
 677                                                 else param++;
 678                                         }
 679                                         if (r)
 680                                         {
 681                                                 strlcat(outlist,"v",MAXBUF);
 682                                                 strlcpy(outpars[pc++],r,MAXBUF);
 683                                         }
 684                                 break;
 685
 686                                 case 'b':
 687                                         if ((param >= pcnt)) break;
 688                                         if (mdir == 1)
 689                                         {
 690                                                 MOD_RESULT = 0;
 691                                                 FOREACH_RESULT(OnRawMode(user, chan, 'b', parameters[param], true, 1));
 692                                                 if (!MOD_RESULT)
 693                                                 {
 694                                                         r = add_ban(user,parameters[param++],chan,status);
 695                                                 }
 696                                                 else param++;
 697                                         }
 698                                         else
 699                                         {
 700                                                 MOD_RESULT = 0;
 701                                                 FOREACH_RESULT(OnRawMode(user, chan, 'b', parameters[param], false, 1));
 702                                                 if (!MOD_RESULT)
 703                                                 {
 704                                                         r = take_ban(user,parameters[param++],chan,status);
 705                                                 }
 706                                                 else param++;
 707                                         }
 708                                         if (r)
 709                                         {
 710                                                 strlcat(outlist,"b",MAXBUF);
 711                                                 strlcpy(outpars[pc++],parameters[param-1],MAXBUF);
 712                                         }
 713                                 break;
 714
 715
 716                                 case 'k':
 717                                         if ((param >= pcnt))
 718                                                 break;
 719
 720                                         if (mdir == 1)
 721                                         {
 722                                                 if (k_set)
 723                                                         break;
 724
 725                                                 if (!strcmp(chan->key,""))
 726                                                 {
 727                                                         MOD_RESULT = 0;
 728                                                         FOREACH_RESULT(OnRawMode(user, chan, 'k', parameters[param], true, 1));
 729                                                         if (!MOD_RESULT)
 730                                                         {
 731                                                                 strcat(outlist,"k");
 732                                                                 char key[MAXBUF];
 733                                                                 strlcpy(key,parameters[param++],MAXBUF);
 734                                                                 if (strlen(key)>32) {
 735                                                                         key[31] = '\0';
 736                                                                 }
 737                                                                 strlcpy(outpars[pc++],key,MAXBUF);
 738                                                                 strlcpy(chan->key,key,MAXBUF);
 739                                                                 k_set = true;
 740                                                         }
 741                                                         else param++;
 742                                                 }
 743                                         }
 744                                         else
 745                                         {
 746                                                 /* checks on -k are case sensitive and only accurate to the
 747                                                    first 32 characters */
 748                                                 char key[MAXBUF];
 749                                                 MOD_RESULT = 0;
 750                                                 FOREACH_RESULT(OnRawMode(user, chan, 'k', parameters[param], false, 1));
 751                                                 if (!MOD_RESULT)
 752                                                 {
 753                                                         strlcpy(key,parameters[param++],MAXBUF);
 754                                                         if (strlen(key)>32)
 755                                                         {
 756                                                                 key[31] = '\0';
 757                                                         }
 758                                                         /* only allow -k if correct key given */
 759                                                         if (!strcmp(chan->key,key))
 760                                                         {
 761                                                                 strlcat(outlist,"k",MAXBUF);
 762                                                                 strlcpy(chan->key,"",MAXBUF);
 763                                                                 strlcpy(outpars[pc++],key,MAXBUF);
 764                                                         }
 765                                                 }
 766                                                 else param++;
 767                                         }
 768                                 break;
 769
 770                                 case 'l':
 771                                         if (mdir == 0)
 772                                         {
 773                                                 MOD_RESULT = 0;
 774                                                 FOREACH_RESULT(OnRawMode(user, chan, 'l', "", false, 0));
 775                                                 if (!MOD_RESULT)
 776                                                 {
 777                                                         if (chan->limit)
 778                                                         {
 779                                                                 strcat(outlist,"l");
 780                                                                 chan->limit = 0;
 781                                                         }
 782                                                 }
 783                                         }
 784
 785                                         if ((param >= pcnt)) break;
 786                                         if (mdir == 1)
 787                                         {
 788                                                 if (l_set)
 789                                                         break;
 790
 791                                                 bool invalid = false;
 792                                                 for (int i = 0; i < strlen(parameters[param]); i++)
 793                                                 {
 794                                                         if ((parameters[param][i] < '0') || (parameters[param][i] > '9'))
 795                                                         {
 796                                                                 invalid = true;
 797                                                         }
 798                                                 }
 799                                                 if (atoi(parameters[param]) < 1)
 800                                                 {
 801                                                         invalid = true;
 802                                                 }
 803
 804                                                 if (invalid)
 805                                                         break;
 806
 807                                                 MOD_RESULT = 0;
 808                                                 FOREACH_RESULT(OnRawMode(user, chan, 'l', parameters[param], true, 1));
 809                                                 if (!MOD_RESULT)
 810                                                 {
 811
 812                                                         chan->limit = atoi(parameters[param]);
 813
 814                                                         // reported by mech: large values cause underflow
 815                                                         if (chan->limit < 0)
 816                                                                 chan->limit = 0x7FFFFF;
 817                                                 }
 818
 819                                                 if (chan->limit)
 820                                                 {
 821                                                         strlcat(outlist,"l",MAXBUF);
 822                                                         strlcpy(outpars[pc++],parameters[param++],MAXBUF);
 823                                                         l_set = true;
 824                                                 }
 825                                         }
 826                                 break;
 827
 828                                 case 'i':
 829                                         MOD_RESULT = 0;
 830                                         FOREACH_RESULT(OnRawMode(user, chan, 'i', "", mdir, 0));
 831                                         if (!MOD_RESULT)
 832                                         {
 833                                                 if (chan->inviteonly != mdir)
 834                                                 {
 835                                                         strlcat(outlist,"i",MAXBUF);
 836                                                 }
 837                                                 chan->inviteonly = mdir;
 838                                         }
 839                                 break;
 840
 841                                 case 't':
 842                                         MOD_RESULT = 0;
 843                                         FOREACH_RESULT(OnRawMode(user, chan, 't', "", mdir, 0));
 844                                         if (!MOD_RESULT)
 845                                         {
 846                                                 if (chan->topiclock != mdir)
 847                                                 {
 848                                                         strlcat(outlist,"t",MAXBUF);
 849                                                 }
 850                                                 chan->topiclock = mdir;
 851                                         }
 852                                 break;
 853
 854                                 case 'n':
 855                                         MOD_RESULT = 0;
 856                                         FOREACH_RESULT(OnRawMode(user, chan, 'n', "", mdir, 0));
 857                                         if (!MOD_RESULT)
 858                                         {
 859                                                 if (chan->noexternal != mdir)
 860                                                 {
 861                                                         strlcat(outlist,"n",MAXBUF);
 862                                                 }
 863                                                 chan->noexternal = mdir;
 864                                         }
 865                                 break;
 866
 867                                 case 'm':
 868                                         MOD_RESULT = 0;
 869                                         FOREACH_RESULT(OnRawMode(user, chan, 'm', "", mdir, 0));
 870                                         if (!MOD_RESULT)
 871                                         {
 872                                                 if (chan->moderated != mdir)
 873                                                 {
 874                                                         strlcat(outlist,"m",MAXBUF);
 875                                                 }
 876                                                 chan->moderated = mdir;
 877                                         }
 878                                 break;
 879
 880                                 case 's':
 881                                         MOD_RESULT = 0;
 882                                         FOREACH_RESULT(OnRawMode(user, chan, 's', "", mdir, 0));
 883                                         if (!MOD_RESULT)
 884                                         {
 885                                                 if (chan->secret != mdir)
 886                                                 {
 887                                                         strcat(outlist,"s");
 888                                                         if (chan->c_private)
 889                                                         {
 890                                                                 chan->c_private = 0;
 891                                                                 if (mdir)
 892                                                                 {
 893                                                                         strlcat(outlist,"-p+",MAXBUF);
 894                                                                 }
 895                                                                 else
 896                                                                 {
 897                                                                         strlcat(outlist,"+p-",MAXBUF);
 898                                                                 }
 899                                                         }
 900                                                 }
 901                                                 chan->secret = mdir;
 902                                         }
 903                                 break;
 904
 905                                 case 'p':
 906                                         MOD_RESULT = 0;
 907                                         FOREACH_RESULT(OnRawMode(user, chan, 'p', "", mdir, 0));
 908                                         if (!MOD_RESULT)
 909                                         {
 910                                                 if (chan->c_private != mdir)
 911                                                 {
 912                                                         strlcat(outlist,"p",MAXBUF);
 913                                                         if (chan->secret)
 914                                                         {
 915                                                                 chan->secret = 0;
 916                                                                 if (mdir)
 917                                                                 {
 918                                                                         strlcat(outlist,"-s+",MAXBUF);
 919                                                                 }
 920                                                                 else
 921                                                                 {
 922                                                                         strlcat(outlist,"+s-",MAXBUF);
 923                                                                 }
 924                                                         }
 925                                                 }
 926                                                 chan->c_private = mdir;
 927                                         }
 928                                 break;
 929
 930                                 default:
 931                                         log(DEBUG,"Preprocessing custom mode %c: modelist: %s",modechar,chan->custom_modes);
 932                                         string_list p;
 933                                         p.clear();
 934                                         if (((!strchr(chan->custom_modes,modechar)) && (!mdir)) || ((strchr(chan->custom_modes,modechar)) && (mdir)))
 935                                         {
 936                                                 if (!ModeIsListMode(modechar,MT_CHANNEL))
 937                                                 {
 938                                                         log(DEBUG,"Mode %c isnt set on %s but trying to remove!",modechar,chan->name);
 939                                                         break;
 940                                                 }
 941                                         }
 942                                         if (ModeDefined(modechar,MT_CHANNEL))
 943                                         {
 944                                                 log(DEBUG,"A module has claimed this mode");
 945                                                 if (param<pcnt)
 946                                                 {
 947                                                         if ((ModeDefinedOn(modechar,MT_CHANNEL)>0) && (mdir))
 948                                                         {
 949                                                                 p.push_back(parameters[param]);
 950                                                         }
 951                                                         if ((ModeDefinedOff(modechar,MT_CHANNEL)>0) && (!mdir))
 952                                                         {
 953                                                                 p.push_back(parameters[param]);
 954                                                         }
 955                                                 }
 956                                                 bool handled = false;
 957                                                 if (param>=pcnt)
 958                                                 {
 959                                                         // we're supposed to have a parameter, but none was given... so dont handle the mode.
 960                                                         if (((ModeDefinedOn(modechar,MT_CHANNEL)>0) && (mdir)) || ((ModeDefinedOff(modechar,MT_CHANNEL)>0) && (!mdir)))
 961                                                         {
 962                                                                 log(DEBUG,"Not enough parameters for module-mode %c",modechar);
 963                                                                 handled = true;
 964                                                                 param++;
 965                                                         }
 966                                                 }
 967
 968                                                 // BIG ASS IDIOTIC CODER WARNING!
 969                                                 // Using OnRawMode on another modules mode's behavour
 970                                                 // will confuse the crap out of admins! just because you CAN
 971                                                 // do it, doesnt mean you SHOULD!
 972                                                 MOD_RESULT = 0;
 973                                                 std::string para = "";
 974                                                 if (p.size())
 975                                                         para = p[0];
 976                                                 FOREACH_RESULT(OnRawMode(user, chan, modechar, para, mdir, pcnt));
 977                                                 if (!MOD_RESULT)
 978                                                 {
 979                                                         for (int i = 0; i <= MODCOUNT; i++)
 980                                                         {
 981                                                                 if (!handled)
 982                                                                 {
 983                                                                         int t = modules[i]->OnExtendedMode(user,chan,modechar,MT_CHANNEL,mdir,p);
 984                                                                         if (t != 0)
 985                                                                         {
 986                                                                                 log(DEBUG,"OnExtendedMode returned nonzero for a module");
 987                                                                                 char app[] = {modechar, 0};
 988                                                                                 if (ModeIsListMode(modechar,MT_CHANNEL))
 989                                                                                 {
 990                                                                                         if (t == -1)
 991                                                                                         {
 992                                                                                                 pc++;
 993                                                                                         }
 994                                                                                         else
 995                                                                                         {
 996                                                                                                 if (ptr>0)
 997                                                                                                 {
 998                                                                                                         strlcat(outlist, app,MAXBUF);
 999                                                                                                 }
1000                                                                                                 strlcpy(outpars[pc++],parameters[param++],MAXBUF);
1001                                                                                         }
1002                                                                                 }
1003                                                                                 else
1004                                                                                 {
1005                                                                                         if (ptr>0)
1006                                                                                         {
1007                                                                                                 if ((modelist[ptr-1] == '+') || (modelist[ptr-1] == '-'))
1008                                                                                                 {
1009                                                                                                         strlcat(outlist, app,MAXBUF);
1010                                                                                                 }
1011                                                                                                 else if (!strchr(outlist,modechar))
1012                                                                                                 {
1013                                                                                                         strlcat(outlist, app,MAXBUF);
1014                                                                                                 }
1015                                                                                         }
1016                                                                                         chan->SetCustomMode(modechar,mdir);
1017                                                                                         // include parameters in output if mode has them
1018                                                                                         if ((ModeDefinedOn(modechar,MT_CHANNEL)>0) && (mdir))
1019                                                                                         {
1020                                                                                                 chan->SetCustomModeParam(modelist[ptr],parameters[param],mdir);
1021                                                                                                 strlcpy(outpars[pc++],parameters[param++],MAXBUF);
1022                                                                                         }
1023                                                                                 }
1024                                                                                 // break, because only one module can handle the mode.
1025                                                                                 handled = true;
1026                                                                         }
1027                                                                 }
1028                                                         }
1029                                                 }
1030                                         }
1031                                         else
1032                                         {
1033                                                 WriteServ(user->fd,"472 %s %c :is unknown mode char to me",user->nick,modechar);
1034                                         }
1035                                 break;
1036
1037                         }
1038                 }
1039         }
1040
1041         /* this ensures only the *valid* modes are sent out onto the network */
1042         while ((outlist[strlen(outlist)-1] == '-') || (outlist[strlen(outlist)-1] == '+'))
1043         {
1044                 outlist[strlen(outlist)-1] = '\0';
1045         }
1046         if (strcmp(outlist,""))
1047         {
1048                 strlcpy(outstr,outlist,MAXBUF);
1049                 for (ptr = 0; ptr < pc; ptr++)
1050                 {
1051                         strlcat(outstr," ",MAXBUF);
1052                         strlcat(outstr,outpars[ptr],MAXBUF);
1053                 }
1054                 if (local)
1055                 {
1056                         log(DEBUG,"Local mode change");
1057                         WriteChannelLocal(chan, user, "MODE %s %s",chan->name,outstr);
1058                 }
1059                 else
1060                 {
1061                         if (servermode)
1062                         {
1063                                 if (!silent)
1064                                 {
1065                                         WriteChannelWithServ(ServerName,chan,user,"MODE %s %s",chan->name,outstr);
1066                                         // M token for a usermode must go to all servers
1067                                         char buffer[MAXBUF];
1068                                         snprintf(buffer,MAXBUF,"M %s %s",chan->name, outstr);
1069                                         NetSendToAll(buffer);
1070                                 }
1071
1072                         }
1073                         else
1074                         {
1075                                 if (!silent)
1076                                 {
1077                                         WriteChannel(chan,user,"MODE %s %s",chan->name,outstr);
1078                                         // M token for a usermode must go to all servers
1079                                         char buffer[MAXBUF];
1080                                         snprintf(buffer,MAXBUF,"m %s %s %s",user->nick,chan->name, outstr);
1081                                         NetSendToAll(buffer);
1082                                 }
1083                         }
1084                 }
1085         }
1086 }
1087
1088 // based on sourcemodes, return true or false to determine if umode is a valid mode a user may set on themselves or others.
1089
1090 bool allowed_umode(char umode, char* sourcemodes,bool adding)
1091 {
1092         log(DEBUG,"Allowed_umode: %c %s",umode,sourcemodes);
1093         // RFC1459 specified modes
1094         if ((umode == 'w') || (umode == 's') || (umode == 'i'))
1095         {
1096                 log(DEBUG,"umode %c allowed by RFC1459 scemantics",umode);
1097                 return true;
1098         }
1099
1100         // user may not +o themselves or others, but an oper may de-oper other opers or themselves
1101         if ((strchr(sourcemodes,'o')) && (!adding))
1102         {
1103                 log(DEBUG,"umode %c allowed by RFC1459 scemantics",umode);
1104                 return true;
1105         }
1106         else if (umode == 'o')
1107         {
1108                 log(DEBUG,"umode %c allowed by RFC1459 scemantics",umode);
1109                 return false;
1110         }
1111
1112         // process any module-defined modes that need oper
1113         if ((ModeDefinedOper(umode,MT_CLIENT)) && (strchr(sourcemodes,'o')))
1114         {
1115                 log(DEBUG,"umode %c allowed by module handler (oper only mode)",umode);
1116                 return true;
1117         }
1118         else
1119         if (ModeDefined(umode,MT_CLIENT))
1120         {
1121                 // process any module-defined modes that don't need oper
1122                 log(DEBUG,"umode %c allowed by module handler (non-oper mode)",umode);
1123                 if ((ModeDefinedOper(umode,MT_CLIENT)) && (!strchr(sourcemodes,'o')))
1124                 {
1125                         // no, this mode needs oper, and this user 'aint got what it takes!
1126                         return false;
1127                 }
1128                 return true;
1129         }
1130
1131         // anything else - return false.
1132         log(DEBUG,"umode %c not known by any ruleset",umode);
1133         return false;
1134 }
1135
1136 bool process_module_umode(char umode, userrec* source, void* dest, bool adding)
1137 {
1138         userrec* s2;
1139         bool faked = false;
1140         if (!source)
1141         {
1142                 s2 = new userrec;
1143                 strlcpy(s2->nick,ServerName,NICKMAX);
1144                 strcpy(s2->modes,"o");
1145                 s2->fd = -1;
1146                 source = s2;
1147                 faked = true;
1148         }
1149         string_list p;
1150         p.clear();
1151         if (ModeDefined(umode,MT_CLIENT))
1152         {
1153                 for (int i = 0; i <= MODCOUNT; i++)
1154                 {
1155                         if (modules[i]->OnExtendedMode(source,(void*)dest,umode,MT_CLIENT,adding,p))
1156                         {
1157                                 log(DEBUG,"Module %s claims umode %c",module_names[i].c_str(),umode);
1158                                 return true;
1159                         }
1160                 }
1161                 log(DEBUG,"No module claims umode %c",umode);
1162                 if (faked)
1163                 {
1164                         delete s2;
1165                         source = NULL;
1166                 }
1167                 return false;
1168         }
1169         else
1170         {
1171                 if (faked)
1172                 {
1173                         delete s2;
1174                         source = NULL;
1175                 }
1176                 return false;
1177         }
1178 }
1179
1180 void handle_mode(char **parameters, int pcnt, userrec *user)
1181 {
1182         chanrec* Ptr;
1183         userrec* dest;
1184         int can_change,i;
1185         int direction = 1;
1186         char outpars[MAXBUF];
1187
1188         dest = Find(parameters[0]);
1189
1190         if (!user)
1191         {
1192                 return;
1193         }
1194
1195         if ((dest) && (pcnt == 1))
1196         {
1197                 WriteServ(user->fd,"221 %s :+%s",dest->nick,dest->modes);
1198                 return;
1199         }
1200
1201         if ((dest) && (pcnt > 1))
1202         {
1203                 char dmodes[MAXBUF];
1204                 strlcpy(dmodes,dest->modes,MAXBUF);
1205                 log(DEBUG,"pulled up dest user modes: %s",dmodes);
1206
1207                 can_change = 0;
1208                 if (user != dest)
1209                 {
1210                         if (strchr(user->modes,'o'))
1211                         {
1212                                 can_change = 1;
1213                         }
1214                 }
1215                 else
1216                 {
1217                         can_change = 1;
1218                 }
1219                 if (!can_change)
1220                 {
1221                         WriteServ(user->fd,"482 %s :Can't change mode for other users",user->nick);
1222                         return;
1223                 }
1224
1225                 strcpy(outpars,"+");
1226                 direction = 1;
1227
1228                 if ((parameters[1][0] != '+') && (parameters[1][0] != '-'))
1229                         return;
1230
1231                 for (int i = 0; i < strlen(parameters[1]); i++)
1232                 {
1233                         if (parameters[1][i] == '+')
1234                         {
1235                                 if (direction != 1)
1236                                 {
1237                                         if ((outpars[strlen(outpars)-1] == '+') || (outpars[strlen(outpars)-1] == '-'))
1238                                         {
1239                                                 outpars[strlen(outpars)-1] = '+';
1240                                         }
1241                                         else
1242                                         {
1243                                                 strcat(outpars,"+");
1244                                         }
1245                                 }
1246                                 direction = 1;
1247                         }
1248                         else
1249                         if (parameters[1][i] == '-')
1250                         {
1251                                 if (direction != 0)
1252                                 {
1253                                         if ((outpars[strlen(outpars)-1] == '+') || (outpars[strlen(outpars)-1] == '-'))
1254                                         {
1255                                                 outpars[strlen(outpars)-1] = '-';
1256                                         }
1257                                         else
1258                                         {
1259                                                 strcat(outpars,"-");
1260                                         }
1261                                 }
1262                                 direction = 0;
1263                         }
1264                         else
1265                         {
1266                                 can_change = 0;
1267                                 if (strchr(user->modes,'o'))
1268                                 {
1269                                         can_change = 1;
1270                                 }
1271                                 else
1272                                 {
1273                                         if ((parameters[1][i] == 'i') || (parameters[1][i] == 'w') || (parameters[1][i] == 's') || (allowed_umode(parameters[1][i],user->modes,direction)))
1274                                         {
1275                                                 can_change = 1;
1276                                         }
1277                                 }
1278                                 if (can_change)
1279                                 {
1280                                         if (direction == 1)
1281                                         {
1282                                                 if ((!strchr(dmodes,parameters[1][i])) && (allowed_umode(parameters[1][i],user->modes,true)))
1283                                                 {
1284                                                         char umode = parameters[1][i];
1285                                                         if ((process_module_umode(umode, user, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
1286                                                         {
1287                                                                 dmodes[strlen(dmodes)+1]='\0';
1288                                                                 dmodes[strlen(dmodes)] = parameters[1][i];
1289                                                                 outpars[strlen(outpars)+1]='\0';
1290                                                                 outpars[strlen(outpars)] = parameters[1][i];
1291                                                         }
1292                                                 }
1293                                         }
1294                                         else
1295                                         {
1296                                                 if ((allowed_umode(parameters[1][i],user->modes,false)) && (strchr(dmodes,parameters[1][i])))
1297                                                 {
1298                                                         char umode = parameters[1][i];
1299                                                         if ((process_module_umode(umode, user, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
1300                                                         {
1301                                                                 int q = 0;
1302                                                                 char temp[MAXBUF];
1303                                                                 char moo[MAXBUF];
1304
1305                                                                 outpars[strlen(outpars)+1]='\0';
1306                                                                 outpars[strlen(outpars)] = parameters[1][i];
1307
1308                                                                 strcpy(temp,"");
1309                                                                 for (q = 0; q < strlen(dmodes); q++)
1310                                                                 {
1311                                                                         if (dmodes[q] != parameters[1][i])
1312                                                                         {
1313                                                                                 moo[0] = dmodes[q];
1314                                                                                 moo[1] = '\0';
1315                                                                                 strlcat(temp,moo,MAXBUF);
1316                                                                         }
1317                                                                 }
1318                                                                 strlcpy(dmodes,temp,MAXBUF);
1319                                                         }
1320                                                 }
1321                                         }
1322                                 }
1323                         }
1324                 }
1325                 if (strlen(outpars))
1326                 {
1327                         char b[MAXBUF];
1328                         strlcpy(b,"",MAXBUF);
1329                         int z = 0;
1330                         int i = 0;
1331                         while (i < strlen (outpars))
1332                         {
1333                                 b[z++] = outpars[i++];
1334                                 b[z] = '\0';
1335                                 if (i<strlen(outpars)-1)
1336                                 {
1337                                         if (((outpars[i] == '-') || (outpars[i] == '+')) && ((outpars[i+1] == '-') || (outpars[i+1] == '+')))
1338                                         {
1339                                                 // someones playing silly buggers and trying
1340                                                 // to put a +- or -+ into the line...
1341                                                 i++;
1342                                         }
1343                                 }
1344                                 if (i == strlen(outpars)-1)
1345                                 {
1346                                         if ((outpars[i] == '-') || (outpars[i] == '+'))
1347                                         {
1348                                                 i++;
1349                                         }
1350                                 }
1351                         }
1352
1353                         z = strlen(b)-1;
1354                         if ((b[z] == '-') || (b[z] == '+'))
1355                                 b[z] == '\0';
1356
1357                         if ((!strcmp(b,"+")) || (!strcmp(b,"-")))
1358                                 return;
1359
1360                         WriteTo(user, dest, "MODE %s :%s", dest->nick, b);
1361
1362                         // M token for a usermode must go to all servers
1363                         char buffer[MAXBUF];
1364                         snprintf(buffer,MAXBUF,"m %s %s %s",user->nick, dest->nick, b);
1365                         NetSendToAll(buffer);
1366
1367                         if (strlen(dmodes)>MAXMODES)
1368                         {
1369                                 dmodes[MAXMODES-1] = '\0';
1370                         }
1371                         log(DEBUG,"Stripped mode line");
1372                         log(DEBUG,"Line dest is now %s",dmodes);
1373                         strlcpy(dest->modes,dmodes,MAXMODES);
1374
1375                 }
1376
1377                 return;
1378         }
1379
1380         Ptr = FindChan(parameters[0]);
1381         if (Ptr)
1382         {
1383                 if (pcnt == 1)
1384                 {
1385                         /* just /modes #channel */
1386                         WriteServ(user->fd,"324 %s %s +%s",user->nick, Ptr->name, chanmodes(Ptr));
1387                         return;
1388                 }
1389                 else
1390                 if (pcnt == 2)
1391                 {
1392                         char* mode = parameters[1];
1393                         if (*mode == '+')
1394                                 mode++;
1395                         int MOD_RESULT = 0;
1396                         FOREACH_RESULT(OnRawMode(user, Ptr, *mode, "", false, 0));
1397                         if (!MOD_RESULT)
1398                         {
1399                                 if (*mode == 'b')
1400                                 {
1401
1402                                         for (BanList::iterator i = Ptr->bans.begin(); i != Ptr->bans.end(); i++)
1403                                         {
1404                                                 WriteServ(user->fd,"367 %s %s %s %s %d",user->nick, Ptr->name, i->data, i->set_by, i->set_time);
1405                                         }
1406                                         WriteServ(user->fd,"368 %s %s :End of channel ban list",user->nick, Ptr->name);
1407                                         return;
1408                                 }
1409                                 if ((ModeDefined(*mode,MT_CHANNEL)) && (ModeIsListMode(*mode,MT_CHANNEL)))
1410                                 {
1411                                         // list of items for an extmode
1412                                         log(DEBUG,"Calling OnSendList for all modules, list output for mode %c",*mode);
1413                                         FOREACH_MOD OnSendList(user,Ptr,*mode);
1414                                         return;
1415                                 }
1416                         }
1417                 }
1418
1419                 if ((Ptr) && (!has_channel(user,Ptr)))
1420                 {
1421                         WriteServ(user->fd,"442 %s %s :You're not on that channel!",user->nick, Ptr->name);
1422                         return;
1423                 }
1424
1425                 if (Ptr)
1426                 {
1427                         int MOD_RESULT = 0;
1428                         FOREACH_RESULT(OnAccessCheck(user,NULL,Ptr,AC_GENERAL_MODE));
1429
1430                         if (MOD_RESULT == ACR_DENY)
1431                                 return;
1432                         if (MOD_RESULT == ACR_DEFAULT)
1433                         {
1434                                 if (cstatus(user,Ptr) < STATUS_HOP)
1435                                 {
1436                                         WriteServ(user->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel",user->nick, Ptr->name);
1437                                         return;
1438                                 }
1439                         }
1440
1441                         process_modes(parameters,user,Ptr,cstatus(user,Ptr),pcnt,false,false,false);
1442                 }
1443         }
1444         else
1445         {
1446                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
1447         }
1448 }
1449
1450
1451
1452
1453 void server_mode(char **parameters, int pcnt, userrec *user)
1454 {
1455         chanrec* Ptr;
1456         userrec* dest;
1457         int can_change,i;
1458         int direction = 1;
1459         char outpars[MAXBUF];
1460
1461         dest = Find(parameters[0]);
1462
1463         // fix: ChroNiCk found this - we cant use this as debug if its null!
1464         if (dest)
1465         {
1466                 log(DEBUG,"server_mode on %s",dest->nick);
1467         }
1468
1469         if ((dest) && (pcnt > 1))
1470         {
1471                 log(DEBUG,"params > 1");
1472
1473                 char dmodes[MAXBUF];
1474                 strlcpy(dmodes,dest->modes,MAXBUF);
1475
1476                 strcpy(outpars,"+");
1477                 direction = 1;
1478
1479                 if ((parameters[1][0] != '+') && (parameters[1][0] != '-'))
1480                         return;
1481
1482                 for (int i = 0; i < strlen(parameters[1]); i++)
1483                 {
1484                         if (parameters[1][i] == '+')
1485                         {
1486                                 if (direction != 1)
1487                                 {
1488                                         if ((outpars[strlen(outpars)-1] == '+') || (outpars[strlen(outpars)-1] == '-'))
1489                                         {
1490                                                 outpars[strlen(outpars)-1] = '+';
1491                                         }
1492                                         else
1493                                         {
1494                                                 strcat(outpars,"+");
1495                                         }
1496                                 }
1497                                 direction = 1;
1498                         }
1499                         else
1500                         if (parameters[1][i] == '-')
1501                         {
1502                                 if (direction != 0)
1503                                 {
1504                                         if ((outpars[strlen(outpars)-1] == '+') || (outpars[strlen(outpars)-1] == '-'))
1505                                         {
1506                                                 outpars[strlen(outpars)-1] = '-';
1507                                         }
1508                                         else
1509                                         {
1510                                                 strcat(outpars,"-");
1511                                         }
1512                                 }
1513                                 direction = 0;
1514                         }
1515                         else
1516                         {
1517                                 log(DEBUG,"begin mode processing entry");
1518                                 can_change = 1;
1519                                 if (can_change)
1520                                 {
1521                                         if (direction == 1)
1522                                         {
1523                                                 log(DEBUG,"umode %c being added",parameters[1][i]);
1524                                                 if ((!strchr(dmodes,parameters[1][i])) && (allowed_umode(parameters[1][i],user->modes,true)))
1525                                                 {
1526                                                         char umode = parameters[1][i];
1527                                                         log(DEBUG,"umode %c is an allowed umode",umode);
1528                                                         if ((process_module_umode(umode, user, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
1529                                                         {
1530                                                                 dmodes[strlen(dmodes)+1]='\0';
1531                                                                 dmodes[strlen(dmodes)] = parameters[1][i];
1532                                                                 outpars[strlen(outpars)+1]='\0';
1533                                                                 outpars[strlen(outpars)] = parameters[1][i];
1534                                                         }
1535                                                 }
1536                                         }
1537                                         else
1538                                         {
1539                                                 // can only remove a mode they already have
1540                                                 log(DEBUG,"umode %c being removed",parameters[1][i]);
1541                                                 if ((allowed_umode(parameters[1][i],user->modes,false)) && (strchr(dmodes,parameters[1][i])))
1542                                                 {
1543                                                         char umode = parameters[1][i];
1544                                                         log(DEBUG,"umode %c is an allowed umode",umode);
1545                                                         if ((process_module_umode(umode, user, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
1546                                                         {
1547                                                                 int q = 0;
1548                                                                 char temp[MAXBUF];
1549                                                                 char moo[MAXBUF];
1550
1551                                                                 outpars[strlen(outpars)+1]='\0';
1552                                                                 outpars[strlen(outpars)] = parameters[1][i];
1553
1554                                                                 strcpy(temp,"");
1555                                                                 for (q = 0; q < strlen(dmodes); q++)
1556                                                                 {
1557                                                                         if (dmodes[q] != parameters[1][i])
1558                                                                         {
1559                                                                                 moo[0] = dmodes[q];
1560                                                                                 moo[1] = '\0';
1561                                                                                 strlcat(temp,moo,MAXBUF);
1562                                                                         }
1563                                                                 }
1564                                                                 strlcpy(dmodes,temp,MAXBUF);
1565                                                         }
1566                                                 }
1567                                         }
1568                                 }
1569                         }
1570                 }
1571                 if (strlen(outpars))
1572                 {
1573                         char b[MAXBUF];
1574                         strlcpy(b,"",MAXBUF);
1575                         int z = 0;
1576                         int i = 0;
1577                         while (i < strlen (outpars))
1578                         {
1579                                 b[z++] = outpars[i++];
1580                                 b[z] = '\0';
1581                                 if (i<strlen(outpars)-1)
1582                                 {
1583                                         if (((outpars[i] == '-') || (outpars[i] == '+')) && ((outpars[i+1] == '-') || (outpars[i+1] == '+')))
1584                                         {
1585                                                 // someones playing silly buggers and trying
1586                                                 // to put a +- or -+ into the line...
1587                                                 i++;
1588                                         }
1589                                 }
1590                                 if (i == strlen(outpars)-1)
1591                                 {
1592                                         if ((outpars[i] == '-') || (outpars[i] == '+'))
1593                                         {
1594                                                 i++;
1595                                         }
1596                                 }
1597                         }
1598
1599                         z = strlen(b)-1;
1600                         if ((b[z] == '-') || (b[z] == '+'))
1601                                 b[z] == '\0';
1602
1603                         if ((!strcmp(b,"+")) || (!strcmp(b,"-")))
1604                                 return;
1605
1606                         WriteTo(user, dest, "MODE %s :%s", dest->nick, b);
1607
1608                         // M token for a usermode must go to all servers
1609                         char buffer[MAXBUF];
1610                         snprintf(buffer,MAXBUF,"m %s %s %s",user->nick, dest->nick, b);
1611                         NetSendToAll(buffer);
1612
1613                         if (strlen(dmodes)>MAXMODES)
1614                         {
1615                                 dmodes[MAXMODES-1] = '\0';
1616                         }
1617                         log(DEBUG,"Stripped mode line");
1618                         log(DEBUG,"Line dest is now %s",dmodes);
1619                         strlcpy(dest->modes,dmodes,MAXMODES);
1620
1621                 }
1622
1623                 return;
1624         }
1625
1626         Ptr = FindChan(parameters[0]);
1627         if (Ptr)
1628         {
1629                 process_modes(parameters,user,Ptr,STATUS_OP,pcnt,true,false,false);
1630         }
1631         else
1632         {
1633                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
1634         }
1635 }
1636
1637
1638
1639 void merge_mode(char **parameters, int pcnt)
1640 {
1641         chanrec* Ptr;
1642         userrec* dest;
1643         int can_change,i;
1644         int direction = 1;
1645         char outpars[MAXBUF];
1646
1647         dest = Find(parameters[0]);
1648
1649         // fix: ChroNiCk found this - we cant use this as debug if its null!
1650         if (dest)
1651         {
1652                 log(DEBUG,"merge_mode on %s",dest->nick);
1653         }
1654
1655         if ((dest) && (pcnt > 1))
1656         {
1657                 log(DEBUG,"params > 1");
1658
1659                 char dmodes[MAXBUF];
1660                 strlcpy(dmodes,dest->modes,MAXBUF);
1661
1662                 strcpy(outpars,"+");
1663                 direction = 1;
1664
1665                 if ((parameters[1][0] != '+') && (parameters[1][0] != '-'))
1666                         return;
1667
1668                 for (int i = 0; i < strlen(parameters[1]); i++)
1669                 {
1670                         if (parameters[1][i] == '+')
1671                         {
1672                                 if (direction != 1)
1673                                 {
1674                                         if ((outpars[strlen(outpars)-1] == '+') || (outpars[strlen(outpars)-1] == '-'))
1675                                         {
1676                                                 outpars[strlen(outpars)-1] = '+';
1677                                         }
1678                                         else
1679                                         {
1680                                                 strcat(outpars,"+");
1681                                         }
1682                                 }
1683                                 direction = 1;
1684                         }
1685                         else
1686                         if (parameters[1][i] == '-')
1687                         {
1688                                 if (direction != 0)
1689                                 {
1690                                         if ((outpars[strlen(outpars)-1] == '+') || (outpars[strlen(outpars)-1] == '-'))
1691                                         {
1692                                                 outpars[strlen(outpars)-1] = '-';
1693                                         }
1694                                         else
1695                                         {
1696                                                 strcat(outpars,"-");
1697                                         }
1698                                 }
1699                                 direction = 0;
1700                         }
1701                         else
1702                         {
1703                                 log(DEBUG,"begin mode processing entry");
1704                                 can_change = 1;
1705                                 if (can_change)
1706                                 {
1707                                         if (direction == 1)
1708                                         {
1709                                                 log(DEBUG,"umode %c being added",parameters[1][i]);
1710                                                 if ((!strchr(dmodes,parameters[1][i])) && (allowed_umode(parameters[1][i],"o",true)))
1711                                                 {
1712                                                         char umode = parameters[1][i];
1713                                                         log(DEBUG,"umode %c is an allowed umode",umode);
1714                                                         if ((process_module_umode(umode, NULL, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
1715                                                         {
1716                                                                 dmodes[strlen(dmodes)+1]='\0';
1717                                                                 dmodes[strlen(dmodes)] = parameters[1][i];
1718                                                                 outpars[strlen(outpars)+1]='\0';
1719                                                                 outpars[strlen(outpars)] = parameters[1][i];
1720                                                         }
1721                                                 }
1722                                         }
1723                                         else
1724                                         {
1725                                                 // can only remove a mode they already have
1726                                                 log(DEBUG,"umode %c being removed",parameters[1][i]);
1727                                                 if ((allowed_umode(parameters[1][i],"o",false)) && (strchr(dmodes,parameters[1][i])))
1728                                                 {
1729                                                         char umode = parameters[1][i];
1730                                                         log(DEBUG,"umode %c is an allowed umode",umode);
1731                                                         if ((process_module_umode(umode, NULL, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
1732                                                         {
1733                                                                 int q = 0;
1734                                                                 char temp[MAXBUF];
1735                                                                 char moo[MAXBUF];
1736
1737                                                                 outpars[strlen(outpars)+1]='\0';
1738                                                                 outpars[strlen(outpars)] = parameters[1][i];
1739
1740                                                                 strcpy(temp,"");
1741                                                                 for (q = 0; q < strlen(dmodes); q++)
1742                                                                 {
1743                                                                         if (dmodes[q] != parameters[1][i])
1744                                                                         {
1745                                                                                 moo[0] = dmodes[q];
1746                                                                                 moo[1] = '\0';
1747                                                                                 strlcat(temp,moo,MAXBUF);
1748                                                                         }
1749                                                                 }
1750                                                                 strlcpy(dmodes,temp,MAXBUF);
1751                                                         }
1752                                                 }
1753                                         }
1754                                 }
1755                         }
1756                 }
1757                 if (strlen(outpars))
1758                 {
1759                         char b[MAXBUF];
1760                         strcpy(b,"");
1761                         int z = 0;
1762                         int i = 0;
1763                         while (i < strlen (outpars))
1764                         {
1765                                 b[z++] = outpars[i++];
1766                                 b[z] = '\0';
1767                                 if (i<strlen(outpars)-1)
1768                                 {
1769                                         if (((outpars[i] == '-') || (outpars[i] == '+')) && ((outpars[i+1] == '-') || (outpars[i+1] == '+')))
1770                                         {
1771                                                 // someones playing silly buggers and trying
1772                                                 // to put a +- or -+ into the line...
1773                                                 i++;
1774                                         }
1775                                 }
1776                                 if (i == strlen(outpars)-1)
1777                                 {
1778                                         if ((outpars[i] == '-') || (outpars[i] == '+'))
1779                                         {
1780                                                 i++;
1781                                         }
1782                                 }
1783                         }
1784
1785                         z = strlen(b)-1;
1786                         if ((b[z] == '-') || (b[z] == '+'))
1787                                 b[z] == '\0';
1788
1789                         if ((!strcmp(b,"+")) || (!strcmp(b,"-")))
1790                                 return;
1791
1792                         if (strlen(dmodes)>MAXMODES)
1793                         {
1794                                 dmodes[MAXMODES-1] = '\0';
1795                         }
1796                         log(DEBUG,"Stripped mode line");
1797                         log(DEBUG,"Line dest is now %s",dmodes);
1798                         strlcpy(dest->modes,dmodes,MAXMODES);
1799
1800                 }
1801
1802                 return;
1803         }
1804
1805         Ptr = FindChan(parameters[0]);
1806         if (Ptr)
1807         {
1808                 userrec s2;
1809                 strlcpy(s2.nick,ServerName,NICKMAX);
1810                 strcpy(s2.modes,"o");
1811                 s2.fd = -1;
1812                 process_modes(parameters,&s2,Ptr,STATUS_OP,pcnt,true,true,false);
1813         }
1814 }
1815
1816
1817 void merge_mode2(char **parameters, int pcnt, userrec* user)
1818 {
1819         chanrec* Ptr;
1820         userrec* dest;
1821         int can_change,i;
1822         int direction = 1;
1823         char outpars[MAXBUF];
1824
1825         dest = Find(parameters[0]);
1826
1827         // fix: ChroNiCk found this - we cant use this as debug if its null!
1828         if (dest)
1829         {
1830                 log(DEBUG,"merge_mode on %s",dest->nick);
1831         }
1832
1833         if ((dest) && (pcnt > 1))
1834         {
1835                 log(DEBUG,"params > 1");
1836
1837                 char dmodes[MAXBUF];
1838                 strlcpy(dmodes,dest->modes,MAXBUF);
1839
1840                 strcpy(outpars,"+");
1841                 direction = 1;
1842
1843                 if ((parameters[1][0] == ':') && (strlen(parameters[1])>1))
1844                 {
1845                         // some stupid 3rd party things (such as services packages) put a colon on the mode list...
1846                         log(DEBUG,"Some muppet put a colon on the modelist! changed to '%s'",++parameters[1]);
1847                 }
1848                 if ((parameters[1][0] != '+') && (parameters[1][0] != '-'))
1849                 return;
1850
1851                 for (int i = 0; i < strlen(parameters[1]); i++)
1852                 {
1853                         if (parameters[1][i] == '+')
1854                         {
1855                                 if (direction != 1)
1856                                 {
1857                                         if ((outpars[strlen(outpars)-1] == '+') || (outpars[strlen(outpars)-1] == '-'))
1858                                         {
1859                                                 outpars[strlen(outpars)-1] = '+';
1860                                         }
1861                                         else
1862                                         {
1863                                                 strcat(outpars,"+");
1864                                         }
1865                                 }
1866                                 direction = 1;
1867                         }
1868                         else
1869                         if (parameters[1][i] == '-')
1870                         {
1871                                 if (direction != 0)
1872                                 {
1873                                         if ((outpars[strlen(outpars)-1] == '+') || (outpars[strlen(outpars)-1] == '-'))
1874                                         {
1875                                                 outpars[strlen(outpars)-1] = '-';
1876                                         }
1877                                         else
1878                                         {
1879                                                 strcat(outpars,"-");
1880                                         }
1881                                 }
1882                                 direction = 0;
1883                         }
1884                         else
1885                         {
1886                                 log(DEBUG,"begin mode processing entry");
1887                                 can_change = 1;
1888                                 if (can_change)
1889                                 {
1890                                         if (direction == 1)
1891                                         {
1892                                                 log(DEBUG,"umode %c being added",parameters[1][i]);
1893                                                 if ((!strchr(dmodes,parameters[1][i])) && (allowed_umode(parameters[1][i],user->modes,true)))
1894                                                 {
1895                                                         char umode = parameters[1][i];
1896                                                         log(DEBUG,"umode %c is an allowed umode",umode);
1897                                                         if ((process_module_umode(umode, NULL, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
1898                                                         {
1899                                                                 dmodes[strlen(dmodes)+1]='\0';
1900                                                                 dmodes[strlen(dmodes)] = parameters[1][i];
1901                                                                 outpars[strlen(outpars)+1]='\0';
1902                                                                 outpars[strlen(outpars)] = parameters[1][i];
1903                                                                 log(DEBUG,"OUTPARS='%s', DMODES='%s'",outpars,dmodes);
1904                                                         }
1905                                                 }
1906                                         }
1907                                         else
1908                                         {
1909                                                 // can only remove a mode they already have
1910                                                 log(DEBUG,"umode %c being removed",parameters[1][i]);
1911                                                 if ((allowed_umode(parameters[1][i],user->modes,false)) && (strchr(dmodes,parameters[1][i])))
1912                                                 {
1913                                                         char umode = parameters[1][i];
1914                                                         log(DEBUG,"umode %c is an allowed umode",umode);
1915                                                         if ((process_module_umode(umode, NULL, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
1916                                                         {
1917                                                                 int q = 0;
1918                                                                 char temp[MAXBUF];
1919                                                                 char moo[MAXBUF];
1920
1921                                                                 outpars[strlen(outpars)+1]='\0';
1922                                                                 outpars[strlen(outpars)] = parameters[1][i];
1923
1924                                                                 strcpy(temp,"");
1925                                                                 for (q = 0; q < strlen(dmodes); q++)
1926                                                                 {
1927                                                                         if (dmodes[q] != parameters[1][i])
1928                                                                         {
1929                                                                                 moo[0] = dmodes[q];
1930                                                                                 moo[1] = '\0';
1931                                                                                 strlcat(temp,moo,MAXBUF);
1932                                                                         }
1933                                                                 }
1934                                                                 strlcpy(dmodes,temp,MAXBUF);
1935                                                         }
1936                                                 }
1937                                         }
1938                                 }
1939                         }
1940                 }
1941                 log(DEBUG,"DONE! OUTPARS='%s', DMODES='%s'",outpars,dmodes);
1942                 if (strlen(outpars))
1943                 {
1944                         char b[MAXBUF];
1945                         strcpy(b,"");
1946                         int z = 0;
1947                         int i = 0;
1948                         while (i < strlen (outpars))
1949                         {
1950                                 b[z++] = outpars[i++];
1951                                 b[z] = '\0';
1952                                 if (i<strlen(outpars)-1)
1953                                 {
1954                                         if (((outpars[i] == '-') || (outpars[i] == '+')) && ((outpars[i+1] == '-') || (outpars[i+1] == '+')))
1955                                         {
1956                                                 // someones playing silly buggers and trying
1957                                                 // to put a +- or -+ into the line...
1958                                                 i++;
1959                                         }
1960                                 }
1961                                 if (i == strlen(outpars)-1)
1962                                 {
1963                                         if ((outpars[i] == '-') || (outpars[i] == '+'))
1964                                         {
1965                                                 i++;
1966                                         }
1967                                 }
1968                         }
1969
1970                         z = strlen(b)-1;
1971                         if ((b[z] == '-') || (b[z] == '+'))
1972                                 b[z] == '\0';
1973
1974                         if ((!strcmp(b,"+")) || (!strcmp(b,"-")))
1975                                 return;
1976
1977                         // was sending 'b'
1978                         WriteTo(user,dest,"MODE %s :%s",dest->nick,b);
1979                         log(DEBUG,"Sent: :%s MODE %s",user->nick,b);
1980
1981                         if (strlen(dmodes)>MAXMODES)
1982                         {
1983                                 dmodes[MAXMODES-1] = '\0';
1984                         }
1985                         log(DEBUG,"Stripped mode line");
1986                         log(DEBUG,"Line dest is now %s",dmodes);
1987                         strlcpy(dest->modes,dmodes,MAXMODES);
1988
1989                 }
1990
1991                 return;
1992         }
1993
1994         Ptr = FindChan(parameters[0]);
1995         if (Ptr)
1996         {
1997                 log(DEBUG,"merge_mode2: found channel %s",Ptr->name);
1998                 if (Ptr)
1999                 {
2000                         if ((cstatus(user,Ptr) < STATUS_HOP) && (!is_uline(user->server)))
2001                         {
2002                                 return;
2003                         }
2004                         process_modes(parameters,user,Ptr,cstatus(user,Ptr),pcnt,false,false,true);
2005                 }
2006         }
2007 }
2008
2009