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
  88         if ((!user) || (!dest) || (!chan))
  89         {
  90                 log(DEFAULT,"*** BUG *** give_ops was given an invalid parameter");
  91                 return NULL;
  92         }
  93
  94         if (!isnick(dest))
  95         {
  96                 log(DEFAULT,"the target nickname given to give_ops was invalid");
  97                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
  98                 return NULL;
  99         }
 100         d = Find(dest);
 101         if (!d)
 102         {
 103                 log(DEFAULT,"the target nickname given to give_ops couldnt be found");
 104                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
 105                 return NULL;
 106         }
 107         else
 108         {
 109
 110                 int MOD_RESULT = 0;
 111                 FOREACH_RESULT(OnAccessCheck(user,d,chan,AC_OP));
 112
 113                 if (MOD_RESULT == ACR_DENY)
 114                         return NULL;
 115                 if (MOD_RESULT == ACR_DEFAULT)
 116                 {
 117                         if ((status < STATUS_OP) && (!is_uline(user->server)))
 118                         {
 119                                 log(DEBUG,"%s cant give ops to %s because they nave status %d and needs %d",user->nick,dest,status,STATUS_OP);
 120                                 WriteServ(user->fd,"482 %s %s :You're not a channel operator",user->nick, chan->name);
 121                                 return NULL;
 122                         }
 123                 }
 124
 125
 126                 for (int i = 0; i != MAXCHANS; i++)
 127                 {
 128                         if ((d->chans[i].channel != NULL) && (chan != NULL))
 129                         if (!strcasecmp(d->chans[i].channel->name,chan->name))
 130                         {
 131                         if (d->chans[i].uc_modes & UCMODE_OP)
 132                                 {
 133                                         /* mode already set on user, dont allow multiple */
 134                                         log(DEFAULT,"The target user given to give_ops was already opped on the channel");
 135                                         return NULL;
 136                                 }
 137                                 d->chans[i].uc_modes = d->chans[i].uc_modes | UCMODE_OP;
 138                                 log(DEBUG,"gave ops: %s %s",d->chans[i].channel->name,d->nick);
 139                                 return d->nick;
 140                         }
 141                 }
 142                 log(DEFAULT,"The target channel given to give_ops was not in the users mode list");
 143         }
 144         return NULL;
 145 }
 146
 147 char* give_hops(userrec *user,char *dest,chanrec *chan,int status)
 148 {
 149         userrec *d;
 150
 151         if ((!user) || (!dest) || (!chan))
 152         {
 153                 log(DEFAULT,"*** BUG *** give_hops was given an invalid parameter");
 154                 return NULL;
 155         }
 156
 157         d = Find(dest);
 158         if (!isnick(dest))
 159         {
 160                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
 161                 return NULL;
 162         }
 163         if (!d)
 164         {
 165                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
 166                 return NULL;
 167         }
 168         else
 169         {
 170                 int MOD_RESULT = 0;
 171                 FOREACH_RESULT(OnAccessCheck(user,d,chan,AC_HALFOP));
 172
 173                 if (MOD_RESULT == ACR_DENY)
 174                         return NULL;
 175                 if (MOD_RESULT == ACR_DEFAULT)
 176                 {
 177                         if ((status < STATUS_OP) && (!is_uline(user->server)))
 178                         {
 179                                 WriteServ(user->fd,"482 %s %s :You're not a channel operator",user->nick, chan->name);
 180                                 return NULL;
 181                         }
 182                 }
 183
 184                 for (int i = 0; i != MAXCHANS; i++)
 185                 {
 186                         if ((d->chans[i].channel != NULL) && (chan != NULL))
 187                         if (!strcasecmp(d->chans[i].channel->name,chan->name))
 188                         {
 189                                 if (d->chans[i].uc_modes & UCMODE_HOP)
 190                                 {
 191                                         /* mode already set on user, dont allow multiple */
 192                                         return NULL;
 193                                 }
 194                                 d->chans[i].uc_modes = d->chans[i].uc_modes | UCMODE_HOP;
 195                                 log(DEBUG,"gave h-ops: %s %s",d->chans[i].channel->name,d->nick);
 196                                 return d->nick;
 197                         }
 198                 }
 199         }
 200         return NULL;
 201 }
 202
 203 char* give_voice(userrec *user,char *dest,chanrec *chan,int status)
 204 {
 205         userrec *d;
 206
 207         if ((!user) || (!dest) || (!chan))
 208         {
 209                 log(DEFAULT,"*** BUG *** give_voice was given an invalid parameter");
 210                 return NULL;
 211         }
 212
 213         d = Find(dest);
 214         if (!isnick(dest))
 215         {
 216                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
 217                 return NULL;
 218         }
 219         if (!d)
 220         {
 221                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
 222                 return NULL;
 223         }
 224         else
 225         {
 226                 int MOD_RESULT = 0;
 227                 FOREACH_RESULT(OnAccessCheck(user,d,chan,AC_VOICE));
 228
 229                 if (MOD_RESULT == ACR_DENY)
 230                         return NULL;
 231                 if (MOD_RESULT == ACR_DEFAULT)
 232                 {
 233                         if ((status < STATUS_HOP) && (!is_uline(user->server)))
 234                         {
 235                                 WriteServ(user->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel",user->nick, chan->name);
 236                                 return NULL;
 237                         }
 238                 }
 239
 240                 for (int i = 0; i != MAXCHANS; i++)
 241                 {
 242                         if ((d->chans[i].channel != NULL) && (chan != NULL))
 243                         if (!strcasecmp(d->chans[i].channel->name,chan->name))
 244                         {
 245                                 if (d->chans[i].uc_modes & UCMODE_VOICE)
 246                                 {
 247                                         /* mode already set on user, dont allow multiple */
 248                                         return NULL;
 249                                 }
 250                                 d->chans[i].uc_modes = d->chans[i].uc_modes | UCMODE_VOICE;
 251                                 log(DEBUG,"gave voice: %s %s",d->chans[i].channel->name,d->nick);
 252                                 return d->nick;
 253                         }
 254                 }
 255         }
 256         return NULL;
 257 }
 258
 259 char* take_ops(userrec *user,char *dest,chanrec *chan,int status)
 260 {
 261         userrec *d;
 262
 263         if ((!user) || (!dest) || (!chan))
 264         {
 265                 log(DEFAULT,"*** BUG *** take_ops was given an invalid parameter");
 266                 return NULL;
 267         }
 268
 269         d = Find(dest);
 270         if (!isnick(dest))
 271         {
 272                 log(DEBUG,"take_ops was given an invalid target nickname of %s",dest);
 273                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
 274                 return NULL;
 275         }
 276         if (!d)
 277         {
 278                 log(DEBUG,"take_ops couldnt resolve the target nickname: %s",dest);
 279                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
 280                 return NULL;
 281         }
 282         else
 283         {
 284                 int MOD_RESULT = 0;
 285                 FOREACH_RESULT(OnAccessCheck(user,d,chan,AC_DEOP));
 286
 287                 if (MOD_RESULT == ACR_DENY)
 288                         return NULL;
 289                 if (MOD_RESULT == ACR_DEFAULT)
 290                 {
 291                         if ((status < STATUS_OP) && (!is_uline(user->server)))
 292                         {
 293                                 WriteServ(user->fd,"482 %s %s :You are not a channel operator",user->nick, chan->name);
 294                                 return NULL;
 295                         }
 296                 }
 297
 298                 for (int i = 0; i != MAXCHANS; i++)
 299                 {
 300                         if ((d->chans[i].channel != NULL) && (chan != NULL))
 301                         if (!strcasecmp(d->chans[i].channel->name,chan->name))
 302                         {
 303                                 if ((d->chans[i].uc_modes & UCMODE_OP) == 0)
 304                                 {
 305                                         /* mode already set on user, dont allow multiple */
 306                                         return NULL;
 307                                 }
 308                                 d->chans[i].uc_modes ^= UCMODE_OP;
 309                                 log(DEBUG,"took ops: %s %s",d->chans[i].channel->name,d->nick);
 310                                 return d->nick;
 311                         }
 312                 }
 313                 log(DEBUG,"take_ops couldnt locate the target channel in the target users list");
 314         }
 315         return NULL;
 316 }
 317
 318 char* take_hops(userrec *user,char *dest,chanrec *chan,int status)
 319 {
 320         userrec *d;
 321
 322         if ((!user) || (!dest) || (!chan))
 323         {
 324                 log(DEFAULT,"*** BUG *** take_hops was given an invalid parameter");
 325                 return NULL;
 326         }
 327
 328         d = Find(dest);
 329         if (!isnick(dest))
 330         {
 331                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
 332                 return NULL;
 333         }
 334         if (!d)
 335         {
 336                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
 337                 return NULL;
 338         }
 339         else
 340         {
 341                 int MOD_RESULT = 0;
 342                 FOREACH_RESULT(OnAccessCheck(user,d,chan,AC_DEHALFOP));
 343
 344                 if (MOD_RESULT == ACR_DENY)
 345                         return NULL;
 346                 if (MOD_RESULT == ACR_DEFAULT)
 347                 {
 348                         if ((status < STATUS_OP) && (!is_uline(user->server)))
 349                         {
 350                                 WriteServ(user->fd,"482 %s %s :You are not a channel operator",user->nick, chan->name);
 351                                 return NULL;
 352                         }
 353                 }
 354
 355                 for (int i = 0; i != MAXCHANS; i++)
 356                 {
 357                         if ((d->chans[i].channel != NULL) && (chan != NULL))
 358                         if (!strcasecmp(d->chans[i].channel->name,chan->name))
 359                         {
 360                                 if ((d->chans[i].uc_modes & UCMODE_HOP) == 0)
 361                                 {
 362                                         /* mode already set on user, dont allow multiple */
 363                                         return NULL;
 364                                 }
 365                                 d->chans[i].uc_modes ^= UCMODE_HOP;
 366                                 log(DEBUG,"took h-ops: %s %s",d->chans[i].channel->name,d->nick);
 367                                 return d->nick;
 368                         }
 369                 }
 370         }
 371         return NULL;
 372 }
 373
 374 char* take_voice(userrec *user,char *dest,chanrec *chan,int status)
 375 {
 376         userrec *d;
 377
 378         if ((!user) || (!dest) || (!chan))
 379         {
 380                 log(DEFAULT,"*** BUG *** take_voice was given an invalid parameter");
 381                 return NULL;
 382         }
 383
 384         d = Find(dest);
 385         if (!isnick(dest))
 386         {
 387                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
 388                 return NULL;
 389         }
 390         if (!d)
 391         {
 392                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
 393                 return NULL;
 394         }
 395         else
 396         {
 397                 int MOD_RESULT = 0;
 398                 FOREACH_RESULT(OnAccessCheck(user,d,chan,AC_DEVOICE));
 399
 400                 if (MOD_RESULT == ACR_DENY)
 401                         return NULL;
 402                 if (MOD_RESULT == ACR_DEFAULT)
 403                 {
 404                         if ((status < STATUS_HOP) && (!is_uline(user->server)))
 405                         {
 406                                 WriteServ(user->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel",user->nick, chan->name);
 407                                 return NULL;
 408                         }
 409                 }
 410
 411                 for (int i = 0; i != MAXCHANS; i++)
 412                 {
 413                         if ((d->chans[i].channel != NULL) && (chan != NULL))
 414                         if (!strcasecmp(d->chans[i].channel->name,chan->name))
 415                         {
 416                                 if ((d->chans[i].uc_modes & UCMODE_VOICE) == 0)
 417                                 {
 418                                         /* mode already set on user, dont allow multiple */
 419                                         return NULL;
 420                                 }
 421                                 d->chans[i].uc_modes ^= UCMODE_VOICE;
 422                                 log(DEBUG,"took voice: %s %s",d->chans[i].channel->name,d->nick);
 423                                 return d->nick;
 424                         }
 425                 }
 426         }
 427         return NULL;
 428 }
 429
 430 char* add_ban(userrec *user,char *dest,chanrec *chan,int status)
 431 {
 432         if ((!user) || (!dest) || (!chan)) {
 433                 log(DEFAULT,"*** BUG *** add_ban was given an invalid parameter");
 434                 return NULL;
 435         }
 436
 437         BanItem b;
 438         if ((!user) || (!dest) || (!chan))
 439                 return NULL;
 440         if (strchr(dest,'!')==0)
 441                 return NULL;
 442         if (strchr(dest,'@')==0)
 443                 return NULL;
 444         for (int i = 0; i < strlen(dest); i++)
 445                 if (dest[i] < 32)
 446                         return NULL;
 447         for (int i = 0; i < strlen(dest); i++)
 448                 if (dest[i] > 126)
 449                         return NULL;
 450         int c = 0;
 451         for (int i = 0; i < strlen(dest); i++)
 452                 if (dest[i] == '!')
 453                         c++;
 454         if (c>1)
 455                 return NULL;
 456         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
 463         long maxbans = GetMaxBans(chan->name);
 464         if (chan->bans.size() > maxbans)
 465         {
 466                 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);
 467                 return NULL;
 468         }
 469
 470         log(DEBUG,"add_ban: %s %s",chan->name,user->nick);
 471
 472         TidyBan(dest);
 473         for (BanList::iterator i = chan->bans.begin(); i != chan->bans.end(); i++)
 474         {
 475                 if (!strcasecmp(i->data,dest))
 476                 {
 477                         // dont allow a user to set the same ban twice
 478                         return NULL;
 479                 }
 480         }
 481
 482         b.set_time = TIME;
 483         strncpy(b.data,dest,MAXBUF);
 484         strncpy(b.set_by,user->nick,NICKMAX);
 485         chan->bans.push_back(b);
 486         return dest;
 487 }
 488
 489 char* take_ban(userrec *user,char *dest,chanrec *chan,int status)
 490 {
 491         if ((!user) || (!dest) || (!chan)) {
 492                 log(DEFAULT,"*** BUG *** take_ban was given an invalid parameter");
 493                 return 0;
 494         }
 495
 496         log(DEBUG,"del_ban: %s %s",chan->name,user->nick);
 497         for (BanList::iterator i = chan->bans.begin(); i != chan->bans.end(); i++)
 498         {
 499                 if (!strcasecmp(i->data,dest))
 500                 {
 501                         chan->bans.erase(i);
 502                         return dest;
 503                 }
 504         }
 505         return NULL;
 506 }
 507
 508 void process_modes(char **parameters,userrec* user,chanrec *chan,int status, int pcnt, bool servermode, bool silent, bool local)
 509 {
 510         if (!parameters) {
 511                 log(DEFAULT,"*** BUG *** process_modes was given an invalid parameter");
 512                 return;
 513         }
 514
 515         char modelist[MAXBUF];
 516         char outlist[MAXBUF];
 517         char outstr[MAXBUF];
 518         char outpars[32][MAXBUF];
 519         int param = 2;
 520         int pc = 0;
 521         int ptr = 0;
 522         int mdir = 1;
 523         char* r = NULL;
 524         bool k_set = false, l_set = false;
 525
 526         if (pcnt < 2)
 527         {
 528                 return;
 529         }
 530
 531         int MOD_RESULT = 0;
 532         FOREACH_RESULT(OnAccessCheck(user,NULL,chan,AC_GENERAL_MODE));
 533
 534         if (MOD_RESULT == ACR_DENY)
 535                 return;
 536
 537         log(DEBUG,"process_modes: start: parameters=%d",pcnt);
 538
 539         strlcpy(modelist,parameters[1],MAXBUF); /* mode list, e.g. +oo-o *
 540                                                  * parameters[2] onwards are parameters for
 541                                                  * modes that require them :) */
 542         strlcpy(outlist,"+",MAXBUF);
 543         mdir = 1;
 544
 545         log(DEBUG,"process_modes: modelist: %s",modelist);
 546
 547         for (ptr = 0; ptr < strlen(modelist); ptr++)
 548         {
 549                 r = NULL;
 550
 551                 {
 552                         log(DEBUG,"process_modes: modechar: %c",modelist[ptr]);
 553
 554                         char modechar = modelist[ptr];
 555                         switch (modelist[ptr])
 556                         {
 557                                 case '-':
 558                                         if (mdir != 0)
 559                                         {
 560                                                 if ((outlist[strlen(outlist)-1] == '+') || (outlist[strlen(outlist)-1] == '-'))
 561                                                 {
 562                                                         outlist[strlen(outlist)-1] = '-';
 563                                                 }
 564                                                 else
 565                                                 {
 566                                                         strcat(outlist,"-");
 567                                                 }
 568                                         }
 569                                         mdir = 0;
 570
 571                                 break;
 572
 573                                 case '+':
 574                                         if (mdir != 1)
 575                                         {
 576                                                 if ((outlist[strlen(outlist)-1] == '+') || (outlist[strlen(outlist)-1] == '-'))
 577                                                 {
 578                                                         outlist[strlen(outlist)-1] = '+';
 579                                                 }
 580                                                 else
 581                                                 {
 582                                                         strcat(outlist,"+");
 583                                                 }
 584                                         }
 585                                         mdir = 1;
 586                                 break;
 587
 588                                 case 'o':
 589                                         log(DEBUG,"Ops");
 590                                         if ((param >= pcnt)) break;
 591                                         log(DEBUG,"Enough parameters left");
 592                                         if (mdir == 1)
 593                                         {
 594                                                 MOD_RESULT = 0;
 595                                                 FOREACH_RESULT(OnRawMode(user, chan, 'o', parameters[param], true, 1));
 596                                                 if (!MOD_RESULT)
 597                                                 {
 598                                                         log(DEBUG,"calling give_ops");
 599                                                         r = give_ops(user,parameters[param++],chan,status);
 600                                                 }
 601                                                 else param++;
 602                                         }
 603                                         else
 604                                         {
 605                                                 MOD_RESULT = 0;
 606                                                 FOREACH_RESULT(OnRawMode(user, chan, 'o', parameters[param], false, 1));
 607                                                 if (!MOD_RESULT)
 608                                                 {
 609                                                         log(DEBUG,"calling take_ops");
 610                                                         r = take_ops(user,parameters[param++],chan,status);
 611                                                 }
 612                                                 else param++;
 613                                         }
 614                                         if (r)
 615                                         {
 616                                                 strlcat(outlist,"o",MAXBUF);
 617                                                 strlcpy(outpars[pc++],r,MAXBUF);
 618                                         }
 619                                 break;
 620
 621                                 case 'h':
 622                                         if (((param >= pcnt)) || (!AllowHalfop)) break;
 623                                         if (mdir == 1)
 624                                         {
 625                                                 MOD_RESULT = 0;
 626                                                 FOREACH_RESULT(OnRawMode(user, chan, 'h', parameters[param], true, 1));
 627                                                 if (!MOD_RESULT)
 628                                                 {
 629                                                         r = give_hops(user,parameters[param++],chan,status);
 630                                                 }
 631                                                 else param++;
 632                                         }
 633                                         else
 634                                         {
 635                                                 MOD_RESULT = 0;
 636                                                 FOREACH_RESULT(OnRawMode(user, chan, 'h', parameters[param], false, 1));
 637                                                 if (!MOD_RESULT)
 638                                                 {
 639                                                         r = take_hops(user,parameters[param++],chan,status);
 640                                                 }
 641                                                 else param++;
 642                                         }
 643                                         if (r)
 644                                         {
 645                                                 strlcat(outlist,"h",MAXBUF);
 646                                                 strlcpy(outpars[pc++],r,MAXBUF);
 647                                         }
 648                                 break;
 649
 650
 651                                 case 'v':
 652                                         if ((param >= pcnt)) break;
 653                                         if (mdir == 1)
 654                                         {
 655                                                 MOD_RESULT = 0;
 656                                                 FOREACH_RESULT(OnRawMode(user, chan, 'v', parameters[param], true, 1));
 657                                                 if (!MOD_RESULT)
 658                                                 {
 659                                                         r = give_voice(user,parameters[param++],chan,status);
 660                                                 }
 661                                                 else param++;
 662                                         }
 663                                         else
 664                                         {
 665                                                 MOD_RESULT = 0;
 666                                                 FOREACH_RESULT(OnRawMode(user, chan, 'v', parameters[param], false, 1));
 667                                                 if (!MOD_RESULT)
 668                                                 {
 669                                                         r = take_voice(user,parameters[param++],chan,status);
 670                                                 }
 671                                                 else param++;
 672                                         }
 673                                         if (r)
 674                                         {
 675                                                 strlcat(outlist,"v",MAXBUF);
 676                                                 strlcpy(outpars[pc++],r,MAXBUF);
 677                                         }
 678                                 break;
 679
 680                                 case 'b':
 681                                         if ((param >= pcnt)) break;
 682                                         if (mdir == 1)
 683                                         {
 684                                                 MOD_RESULT = 0;
 685                                                 FOREACH_RESULT(OnRawMode(user, chan, 'b', parameters[param], true, 1));
 686                                                 if (!MOD_RESULT)
 687                                                 {
 688                                                         r = add_ban(user,parameters[param++],chan,status);
 689                                                 }
 690                                                 else param++;
 691                                         }
 692                                         else
 693                                         {
 694                                                 MOD_RESULT = 0;
 695                                                 FOREACH_RESULT(OnRawMode(user, chan, 'b', parameters[param], false, 1));
 696                                                 if (!MOD_RESULT)
 697                                                 {
 698                                                         r = take_ban(user,parameters[param++],chan,status);
 699                                                 }
 700                                                 else param++;
 701                                         }
 702                                         if (r)
 703                                         {
 704                                                 strlcat(outlist,"b",MAXBUF);
 705                                                 strlcpy(outpars[pc++],parameters[param-1],MAXBUF);
 706                                         }
 707                                 break;
 708
 709
 710                                 case 'k':
 711                                         if ((param >= pcnt))
 712                                                 break;
 713
 714                                         if (mdir == 1)
 715                                         {
 716                                                 if (k_set)
 717                                                         break;
 718
 719                                                 if (!strcmp(chan->key,""))
 720                                                 {
 721                                                         MOD_RESULT = 0;
 722                                                         FOREACH_RESULT(OnRawMode(user, chan, 'k', parameters[param], true, 1));
 723                                                         if (!MOD_RESULT)
 724                                                         {
 725                                                                 strcat(outlist,"k");
 726                                                                 char key[MAXBUF];
 727                                                                 strlcpy(key,parameters[param++],MAXBUF);
 728                                                                 if (strlen(key)>32) {
 729                                                                         key[31] = '\0';
 730                                                                 }
 731                                                                 strlcpy(outpars[pc++],key,MAXBUF);
 732                                                                 strlcpy(chan->key,key,MAXBUF);
 733                                                                 k_set = true;
 734                                                         }
 735                                                         else param++;
 736                                                 }
 737                                         }
 738                                         else
 739                                         {
 740                                                 /* checks on -k are case sensitive and only accurate to the
 741                                                    first 32 characters */
 742                                                 char key[MAXBUF];
 743                                                 MOD_RESULT = 0;
 744                                                 FOREACH_RESULT(OnRawMode(user, chan, 'k', parameters[param], false, 1));
 745                                                 if (!MOD_RESULT)
 746                                                 {
 747                                                         strlcpy(key,parameters[param++],MAXBUF);
 748                                                         if (strlen(key)>32)
 749                                                         {
 750                                                                 key[31] = '\0';
 751                                                         }
 752                                                         /* only allow -k if correct key given */
 753                                                         if (!strcmp(chan->key,key))
 754                                                         {
 755                                                                 strlcat(outlist,"k",MAXBUF);
 756                                                                 strlcpy(chan->key,"",MAXBUF);
 757                                                                 strlcpy(outpars[pc++],key,MAXBUF);
 758                                                         }
 759                                                 }
 760                                                 else param++;
 761                                         }
 762                                 break;
 763
 764                                 case 'l':
 765                                         if (mdir == 0)
 766                                         {
 767                                                 MOD_RESULT = 0;
 768                                                 FOREACH_RESULT(OnRawMode(user, chan, 'l', "", false, 0));
 769                                                 if (!MOD_RESULT)
 770                                                 {
 771                                                         if (chan->limit)
 772                                                         {
 773                                                                 strcat(outlist,"l");
 774                                                                 chan->limit = 0;
 775                                                         }
 776                                                 }
 777                                         }
 778
 779                                         if ((param >= pcnt)) break;
 780                                         if (mdir == 1)
 781                                         {
 782                                                 if (l_set)
 783                                                         break;
 784
 785                                                 bool invalid = false;
 786                                                 for (int i = 0; i < strlen(parameters[param]); i++)
 787                                                 {
 788                                                         if ((parameters[param][i] < '0') || (parameters[param][i] > '9'))
 789                                                         {
 790                                                                 invalid = true;
 791                                                         }
 792                                                 }
 793                                                 if (atoi(parameters[param]) < 1)
 794                                                 {
 795                                                         invalid = true;
 796                                                 }
 797
 798                                                 if (invalid)
 799                                                         break;
 800
 801                                                 MOD_RESULT = 0;
 802                                                 FOREACH_RESULT(OnRawMode(user, chan, 'l', parameters[param], true, 1));
 803                                                 if (!MOD_RESULT)
 804                                                 {
 805
 806                                                         chan->limit = atoi(parameters[param]);
 807
 808                                                         // reported by mech: large values cause underflow
 809                                                         if (chan->limit < 0)
 810                                                                 chan->limit = 0x7FFFFF;
 811                                                 }
 812
 813                                                 if (chan->limit)
 814                                                 {
 815                                                         strlcat(outlist,"l",MAXBUF);
 816                                                         strlcpy(outpars[pc++],parameters[param++],MAXBUF);
 817                                                         l_set = true;
 818                                                 }
 819                                         }
 820                                 break;
 821
 822                                 case 'i':
 823                                         MOD_RESULT = 0;
 824                                         FOREACH_RESULT(OnRawMode(user, chan, 'i', "", mdir, 0));
 825                                         if (!MOD_RESULT)
 826                                         {
 827                                                 if (chan->inviteonly != mdir)
 828                                                 {
 829                                                         strlcat(outlist,"i",MAXBUF);
 830                                                 }
 831                                                 chan->inviteonly = mdir;
 832                                         }
 833                                 break;
 834
 835                                 case 't':
 836                                         MOD_RESULT = 0;
 837                                         FOREACH_RESULT(OnRawMode(user, chan, 't', "", mdir, 0));
 838                                         if (!MOD_RESULT)
 839                                         {
 840                                                 if (chan->topiclock != mdir)
 841                                                 {
 842                                                         strlcat(outlist,"t",MAXBUF);
 843                                                 }
 844                                                 chan->topiclock = mdir;
 845                                         }
 846                                 break;
 847
 848                                 case 'n':
 849                                         MOD_RESULT = 0;
 850                                         FOREACH_RESULT(OnRawMode(user, chan, 'n', "", mdir, 0));
 851                                         if (!MOD_RESULT)
 852                                         {
 853                                                 if (chan->noexternal != mdir)
 854                                                 {
 855                                                         strlcat(outlist,"n",MAXBUF);
 856                                                 }
 857                                                 chan->noexternal = mdir;
 858                                         }
 859                                 break;
 860
 861                                 case 'm':
 862                                         MOD_RESULT = 0;
 863                                         FOREACH_RESULT(OnRawMode(user, chan, 'm', "", mdir, 0));
 864                                         if (!MOD_RESULT)
 865                                         {
 866                                                 if (chan->moderated != mdir)
 867                                                 {
 868                                                         strlcat(outlist,"m",MAXBUF);
 869                                                 }
 870                                                 chan->moderated = mdir;
 871                                         }
 872                                 break;
 873
 874                                 case 's':
 875                                         MOD_RESULT = 0;
 876                                         FOREACH_RESULT(OnRawMode(user, chan, 's', "", mdir, 0));
 877                                         if (!MOD_RESULT)
 878                                         {
 879                                                 if (chan->secret != mdir)
 880                                                 {
 881                                                         strcat(outlist,"s");
 882                                                         if (chan->c_private)
 883                                                         {
 884                                                                 chan->c_private = 0;
 885                                                                 if (mdir)
 886                                                                 {
 887                                                                         strlcat(outlist,"-p+",MAXBUF);
 888                                                                 }
 889                                                                 else
 890                                                                 {
 891                                                                         strlcat(outlist,"+p-",MAXBUF);
 892                                                                 }
 893                                                         }
 894                                                 }
 895                                                 chan->secret = mdir;
 896                                         }
 897                                 break;
 898
 899                                 case 'p':
 900                                         MOD_RESULT = 0;
 901                                         FOREACH_RESULT(OnRawMode(user, chan, 'p', "", mdir, 0));
 902                                         if (!MOD_RESULT)
 903                                         {
 904                                                 if (chan->c_private != mdir)
 905                                                 {
 906                                                         strlcat(outlist,"p",MAXBUF);
 907                                                         if (chan->secret)
 908                                                         {
 909                                                                 chan->secret = 0;
 910                                                                 if (mdir)
 911                                                                 {
 912                                                                         strlcat(outlist,"-s+",MAXBUF);
 913                                                                 }
 914                                                                 else
 915                                                                 {
 916                                                                         strlcat(outlist,"+s-",MAXBUF);
 917                                                                 }
 918                                                         }
 919                                                 }
 920                                                 chan->c_private = mdir;
 921                                         }
 922                                 break;
 923
 924                                 default:
 925                                         log(DEBUG,"Preprocessing custom mode %c: modelist: %s",modechar,chan->custom_modes);
 926                                         string_list p;
 927                                         p.clear();
 928                                         if (((!strchr(chan->custom_modes,modechar)) && (!mdir)) || ((strchr(chan->custom_modes,modechar)) && (mdir)))
 929                                         {
 930                                                 if (!ModeIsListMode(modechar,MT_CHANNEL))
 931                                                 {
 932                                                         log(DEBUG,"Mode %c isnt set on %s but trying to remove!",modechar,chan->name);
 933                                                         break;
 934                                                 }
 935                                         }
 936                                         if (ModeDefined(modechar,MT_CHANNEL))
 937                                         {
 938                                                 log(DEBUG,"A module has claimed this mode");
 939                                                 if (param<pcnt)
 940                                                 {
 941                                                         if ((ModeDefinedOn(modechar,MT_CHANNEL)>0) && (mdir))
 942                                                         {
 943                                                                 p.push_back(parameters[param]);
 944                                                         }
 945                                                         if ((ModeDefinedOff(modechar,MT_CHANNEL)>0) && (!mdir))
 946                                                         {
 947                                                                 p.push_back(parameters[param]);
 948                                                         }
 949                                                 }
 950                                                 bool handled = false;
 951                                                 if (param>=pcnt)
 952                                                 {
 953                                                         // we're supposed to have a parameter, but none was given... so dont handle the mode.
 954                                                         if (((ModeDefinedOn(modechar,MT_CHANNEL)>0) && (mdir)) || ((ModeDefinedOff(modechar,MT_CHANNEL)>0) && (!mdir)))
 955                                                         {
 956                                                                 log(DEBUG,"Not enough parameters for module-mode %c",modechar);
 957                                                                 handled = true;
 958                                                                 param++;
 959                                                         }
 960                                                 }
 961
 962                                                 // BIG ASS IDIOTIC CODER WARNING!
 963                                                 // Using OnRawMode on another modules mode's behavour
 964                                                 // will confuse the crap out of admins! just because you CAN
 965                                                 // do it, doesnt mean you SHOULD!
 966                                                 MOD_RESULT = 0;
 967                                                 std::string para = "";
 968                                                 if (p.size())
 969                                                         para = p[0];
 970                                                 FOREACH_RESULT(OnRawMode(user, chan, modechar, para, mdir, pcnt));
 971                                                 if (!MOD_RESULT)
 972                                                 {
 973                                                         for (int i = 0; i <= MODCOUNT; i++)
 974                                                         {
 975                                                                 if (!handled)
 976                                                                 {
 977                                                                         int t = modules[i]->OnExtendedMode(user,chan,modechar,MT_CHANNEL,mdir,p);
 978                                                                         if (t != 0)
 979                                                                         {
 980                                                                                 log(DEBUG,"OnExtendedMode returned nonzero for a module");
 981                                                                                 char app[] = {modechar, 0};
 982                                                                                 if (ModeIsListMode(modechar,MT_CHANNEL))
 983                                                                                 {
 984                                                                                         if (t == -1)
 985                                                                                         {
 986                                                                                                 pc++;
 987                                                                                         }
 988                                                                                         else
 989                                                                                         {
 990                                                                                                 if (ptr>0)
 991                                                                                                 {
 992                                                                                                         strlcat(outlist, app,MAXBUF);
 993                                                                                                 }
 994                                                                                                 strlcpy(outpars[pc++],parameters[param++],MAXBUF);
 995                                                                                         }
 996                                                                                 }
 997                                                                                 else
 998                                                                                 {
 999                                                                                         if (ptr>0)
1000                                                                                         {
1001                                                                                                 if ((modelist[ptr-1] == '+') || (modelist[ptr-1] == '-'))
1002                                                                                                 {
1003                                                                                                         strlcat(outlist, app,MAXBUF);
1004                                                                                                 }
1005                                                                                                 else if (!strchr(outlist,modechar))
1006                                                                                                 {
1007                                                                                                         strlcat(outlist, app,MAXBUF);
1008                                                                                                 }
1009                                                                                         }
1010                                                                                         chan->SetCustomMode(modechar,mdir);
1011                                                                                         // include parameters in output if mode has them
1012                                                                                         if ((ModeDefinedOn(modechar,MT_CHANNEL)>0) && (mdir))
1013                                                                                         {
1014                                                                                                 chan->SetCustomModeParam(modelist[ptr],parameters[param],mdir);
1015                                                                                                 strlcpy(outpars[pc++],parameters[param++],MAXBUF);
1016                                                                                         }
1017                                                                                 }
1018                                                                                 // break, because only one module can handle the mode.
1019                                                                                 handled = true;
1020                                                                         }
1021                                                                 }
1022                                                         }
1023                                                 }
1024                                         }
1025                                         else
1026                                         {
1027                                                 WriteServ(user->fd,"472 %s %c :is unknown mode char to me",user->nick,modechar);
1028                                         }
1029                                 break;
1030
1031                         }
1032                 }
1033         }
1034
1035         /* this ensures only the *valid* modes are sent out onto the network */
1036         while ((outlist[strlen(outlist)-1] == '-') || (outlist[strlen(outlist)-1] == '+'))
1037         {
1038                 outlist[strlen(outlist)-1] = '\0';
1039         }
1040         if (strcmp(outlist,""))
1041         {
1042                 strlcpy(outstr,outlist,MAXBUF);
1043                 for (ptr = 0; ptr < pc; ptr++)
1044                 {
1045                         strlcat(outstr," ",MAXBUF);
1046                         strlcat(outstr,outpars[ptr],MAXBUF);
1047                 }
1048                 if (local)
1049                 {
1050                         log(DEBUG,"Local mode change");
1051                         WriteChannelLocal(chan, user, "MODE %s %s",chan->name,outstr);
1052                 }
1053                 else
1054                 {
1055                         if (servermode)
1056                         {
1057                                 if (!silent)
1058                                 {
1059                                         WriteChannelWithServ(ServerName,chan,user,"MODE %s %s",chan->name,outstr);
1060                                         // M token for a usermode must go to all servers
1061                                         char buffer[MAXBUF];
1062                                         snprintf(buffer,MAXBUF,"M %s %s",chan->name, outstr);
1063                                         NetSendToAll(buffer);
1064                                 }
1065
1066                         }
1067                         else
1068                         {
1069                                 if (!silent)
1070                                 {
1071                                         WriteChannel(chan,user,"MODE %s %s",chan->name,outstr);
1072                                         // M token for a usermode must go to all servers
1073                                         char buffer[MAXBUF];
1074                                         snprintf(buffer,MAXBUF,"m %s %s %s",user->nick,chan->name, outstr);
1075                                         NetSendToAll(buffer);
1076                                 }
1077                         }
1078                 }
1079         }
1080 }
1081
1082 // based on sourcemodes, return true or false to determine if umode is a valid mode a user may set on themselves or others.
1083
1084 bool allowed_umode(char umode, char* sourcemodes,bool adding)
1085 {
1086         log(DEBUG,"Allowed_umode: %c %s",umode,sourcemodes);
1087         // RFC1459 specified modes
1088         if ((umode == 'w') || (umode == 's') || (umode == 'i'))
1089         {
1090                 log(DEBUG,"umode %c allowed by RFC1459 scemantics",umode);
1091                 return true;
1092         }
1093
1094         // user may not +o themselves or others, but an oper may de-oper other opers or themselves
1095         if ((strchr(sourcemodes,'o')) && (!adding))
1096         {
1097                 log(DEBUG,"umode %c allowed by RFC1459 scemantics",umode);
1098                 return true;
1099         }
1100         else if (umode == 'o')
1101         {
1102                 log(DEBUG,"umode %c allowed by RFC1459 scemantics",umode);
1103                 return false;
1104         }
1105
1106         // process any module-defined modes that need oper
1107         if ((ModeDefinedOper(umode,MT_CLIENT)) && (strchr(sourcemodes,'o')))
1108         {
1109                 log(DEBUG,"umode %c allowed by module handler (oper only mode)",umode);
1110                 return true;
1111         }
1112         else
1113         if (ModeDefined(umode,MT_CLIENT))
1114         {
1115                 // process any module-defined modes that don't need oper
1116                 log(DEBUG,"umode %c allowed by module handler (non-oper mode)",umode);
1117                 if ((ModeDefinedOper(umode,MT_CLIENT)) && (!strchr(sourcemodes,'o')))
1118                 {
1119                         // no, this mode needs oper, and this user 'aint got what it takes!
1120                         return false;
1121                 }
1122                 return true;
1123         }
1124
1125         // anything else - return false.
1126         log(DEBUG,"umode %c not known by any ruleset",umode);
1127         return false;
1128 }
1129
1130 bool process_module_umode(char umode, userrec* source, void* dest, bool adding)
1131 {
1132         userrec* s2;
1133         bool faked = false;
1134         if (!source)
1135         {
1136                 s2 = new userrec;
1137                 strlcpy(s2->nick,ServerName,NICKMAX);
1138                 strcpy(s2->modes,"o");
1139                 s2->fd = -1;
1140                 source = s2;
1141                 faked = true;
1142         }
1143         string_list p;
1144         p.clear();
1145         if (ModeDefined(umode,MT_CLIENT))
1146         {
1147                 for (int i = 0; i <= MODCOUNT; i++)
1148                 {
1149                         if (modules[i]->OnExtendedMode(source,(void*)dest,umode,MT_CLIENT,adding,p))
1150                         {
1151                                 log(DEBUG,"Module %s claims umode %c",module_names[i].c_str(),umode);
1152                                 return true;
1153                         }
1154                 }
1155                 log(DEBUG,"No module claims umode %c",umode);
1156                 if (faked)
1157                 {
1158                         delete s2;
1159                         source = NULL;
1160                 }
1161                 return false;
1162         }
1163         else
1164         {
1165                 if (faked)
1166                 {
1167                         delete s2;
1168                         source = NULL;
1169                 }
1170                 return false;
1171         }
1172 }
1173
1174 void handle_mode(char **parameters, int pcnt, userrec *user)
1175 {
1176         chanrec* Ptr;
1177         userrec* dest;
1178         int can_change;
1179         int direction = 1;
1180         char outpars[MAXBUF];
1181
1182         dest = Find(parameters[0]);
1183
1184         if (!user)
1185         {
1186                 return;
1187         }
1188
1189         if ((dest) && (pcnt == 1))
1190         {
1191                 WriteServ(user->fd,"221 %s :+%s",dest->nick,dest->modes);
1192                 return;
1193         }
1194
1195         if ((dest) && (pcnt > 1))
1196         {
1197                 char dmodes[MAXBUF];
1198                 strlcpy(dmodes,dest->modes,MAXBUF);
1199                 log(DEBUG,"pulled up dest user modes: %s",dmodes);
1200
1201                 can_change = 0;
1202                 if (user != dest)
1203                 {
1204                         if (strchr(user->modes,'o'))
1205                         {
1206                                 can_change = 1;
1207                         }
1208                 }
1209                 else
1210                 {
1211                         can_change = 1;
1212                 }
1213                 if (!can_change)
1214                 {
1215                         WriteServ(user->fd,"482 %s :Can't change mode for other users",user->nick);
1216                         return;
1217                 }
1218
1219                 strcpy(outpars,"+");
1220                 direction = 1;
1221
1222                 if ((parameters[1][0] != '+') && (parameters[1][0] != '-'))
1223                         return;
1224
1225                 for (int i = 0; i < strlen(parameters[1]); i++)
1226                 {
1227                         if (parameters[1][i] == '+')
1228                         {
1229                                 if (direction != 1)
1230                                 {
1231                                         if ((outpars[strlen(outpars)-1] == '+') || (outpars[strlen(outpars)-1] == '-'))
1232                                         {
1233                                                 outpars[strlen(outpars)-1] = '+';
1234                                         }
1235                                         else
1236                                         {
1237                                                 strcat(outpars,"+");
1238                                         }
1239                                 }
1240                                 direction = 1;
1241                         }
1242                         else
1243                         if (parameters[1][i] == '-')
1244                         {
1245                                 if (direction != 0)
1246                                 {
1247                                         if ((outpars[strlen(outpars)-1] == '+') || (outpars[strlen(outpars)-1] == '-'))
1248                                         {
1249                                                 outpars[strlen(outpars)-1] = '-';
1250                                         }
1251                                         else
1252                                         {
1253                                                 strcat(outpars,"-");
1254                                         }
1255                                 }
1256                                 direction = 0;
1257                         }
1258                         else
1259                         {
1260                                 can_change = 0;
1261                                 if (strchr(user->modes,'o'))
1262                                 {
1263                                         can_change = 1;
1264                                 }
1265                                 else
1266                                 {
1267                                         if ((parameters[1][i] == 'i') || (parameters[1][i] == 'w') || (parameters[1][i] == 's') || (allowed_umode(parameters[1][i],user->modes,direction)))
1268                                         {
1269                                                 can_change = 1;
1270                                         }
1271                                 }
1272                                 if (can_change)
1273                                 {
1274                                         if (direction == 1)
1275                                         {
1276                                                 if ((!strchr(dmodes,parameters[1][i])) && (allowed_umode(parameters[1][i],user->modes,true)))
1277                                                 {
1278                                                         char umode = parameters[1][i];
1279                                                         if ((process_module_umode(umode, user, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
1280                                                         {
1281                                                                 dmodes[strlen(dmodes)+1]='\0';
1282                                                                 dmodes[strlen(dmodes)] = parameters[1][i];
1283                                                                 outpars[strlen(outpars)+1]='\0';
1284                                                                 outpars[strlen(outpars)] = parameters[1][i];
1285                                                                 if (parameters[1][i] == 'o')
1286                                                                 {
1287                                                                         FOREACH_MOD OnGlobalOper(dest);
1288                                                                 }
1289                                                         }
1290                                                 }
1291                                         }
1292                                         else
1293                                         {
1294                                                 if ((allowed_umode(parameters[1][i],user->modes,false)) && (strchr(dmodes,parameters[1][i])))
1295                                                 {
1296                                                         char umode = parameters[1][i];
1297                                                         if ((process_module_umode(umode, user, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
1298                                                         {
1299                                                                 int q = 0;
1300                                                                 char temp[MAXBUF];
1301                                                                 char moo[MAXBUF];
1302
1303                                                                 outpars[strlen(outpars)+1]='\0';
1304                                                                 outpars[strlen(outpars)] = parameters[1][i];
1305
1306                                                                 strcpy(temp,"");
1307                                                                 for (q = 0; q < strlen(dmodes); q++)
1308                                                                 {
1309                                                                         if (dmodes[q] != parameters[1][i])
1310                                                                         {
1311                                                                                 moo[0] = dmodes[q];
1312                                                                                 moo[1] = '\0';
1313                                                                                 strlcat(temp,moo,MAXBUF);
1314                                                                         }
1315                                                                 }
1316                                                                 strlcpy(dmodes,temp,MAXBUF);
1317
1318                                                                 if (umode == 'o')
1319                                                                         DeleteOper(dest);
1320                                                         }
1321                                                 }
1322                                         }
1323                                 }
1324                         }
1325                 }
1326                 if (strlen(outpars))
1327                 {
1328                         char b[MAXBUF];
1329                         strlcpy(b,"",MAXBUF);
1330                         int z = 0;
1331                         int i = 0;
1332                         while (i < strlen (outpars))
1333                         {
1334                                 b[z++] = outpars[i++];
1335                                 b[z] = '\0';
1336                                 if (i<strlen(outpars)-1)
1337                                 {
1338                                         if (((outpars[i] == '-') || (outpars[i] == '+')) && ((outpars[i+1] == '-') || (outpars[i+1] == '+')))
1339                                         {
1340                                                 // someones playing silly buggers and trying
1341                                                 // to put a +- or -+ into the line...
1342                                                 i++;
1343                                         }
1344                                 }
1345                                 if (i == strlen(outpars)-1)
1346                                 {
1347                                         if ((outpars[i] == '-') || (outpars[i] == '+'))
1348                                         {
1349                                                 i++;
1350                                         }
1351                                 }
1352                         }
1353
1354                         z = strlen(b)-1;
1355                         if ((b[z] == '-') || (b[z] == '+'))
1356                                 b[z] = '\0';
1357
1358                         if ((!strcmp(b,"+")) || (!strcmp(b,"-")))
1359                                 return;
1360
1361                         WriteTo(user, dest, "MODE %s :%s", dest->nick, b);
1362
1363                         // M token for a usermode must go to all servers
1364                         char buffer[MAXBUF];
1365                         snprintf(buffer,MAXBUF,"m %s %s %s",user->nick, dest->nick, b);
1366                         NetSendToAll(buffer);
1367
1368                         if (strlen(dmodes)>MAXMODES)
1369                         {
1370                                 dmodes[MAXMODES-1] = '\0';
1371                         }
1372                         log(DEBUG,"Stripped mode line");
1373                         log(DEBUG,"Line dest is now %s",dmodes);
1374                         strlcpy(dest->modes,dmodes,MAXMODES);
1375
1376                 }
1377
1378                 return;
1379         }
1380
1381         Ptr = FindChan(parameters[0]);
1382         if (Ptr)
1383         {
1384                 if (pcnt == 1)
1385                 {
1386                         /* just /modes #channel */
1387                         WriteServ(user->fd,"324 %s %s +%s",user->nick, Ptr->name, chanmodes(Ptr));
1388                         WriteServ(user->fd,"329 %s %s %d", user->nick, Ptr->name, Ptr->created);
1389                         return;
1390                 }
1391                 else
1392                 if (pcnt == 2)
1393                 {
1394                         char* mode = parameters[1];
1395                         if (*mode == '+')
1396                                 mode++;
1397                         int MOD_RESULT = 0;
1398                         FOREACH_RESULT(OnRawMode(user, Ptr, *mode, "", false, 0));
1399                         if (!MOD_RESULT)
1400                         {
1401                                 if (*mode == 'b')
1402                                 {
1403
1404                                         for (BanList::iterator i = Ptr->bans.begin(); i != Ptr->bans.end(); i++)
1405                                         {
1406                                                 WriteServ(user->fd,"367 %s %s %s %s %d",user->nick, Ptr->name, i->data, i->set_by, i->set_time);
1407                                         }
1408                                         WriteServ(user->fd,"368 %s %s :End of channel ban list",user->nick, Ptr->name);
1409                                         return;
1410                                 }
1411                                 if ((ModeDefined(*mode,MT_CHANNEL)) && (ModeIsListMode(*mode,MT_CHANNEL)))
1412                                 {
1413                                         // list of items for an extmode
1414                                         log(DEBUG,"Calling OnSendList for all modules, list output for mode %c",*mode);
1415                                         FOREACH_MOD OnSendList(user,Ptr,*mode);
1416                                         return;
1417                                 }
1418                         }
1419                 }
1420
1421                 if ((Ptr) && (!has_channel(user,Ptr)))
1422                 {
1423                         WriteServ(user->fd,"442 %s %s :You're not on that channel!",user->nick, Ptr->name);
1424                         return;
1425                 }
1426
1427                 if (Ptr)
1428                 {
1429                         int MOD_RESULT = 0;
1430                         FOREACH_RESULT(OnAccessCheck(user,NULL,Ptr,AC_GENERAL_MODE));
1431
1432                         if (MOD_RESULT == ACR_DENY)
1433                                 return;
1434                         if (MOD_RESULT == ACR_DEFAULT)
1435                         {
1436                                 if (cstatus(user,Ptr) < STATUS_HOP)
1437                                 {
1438                                         WriteServ(user->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel",user->nick, Ptr->name);
1439                                         return;
1440                                 }
1441                         }
1442
1443                         process_modes(parameters,user,Ptr,cstatus(user,Ptr),pcnt,false,false,false);
1444                 }
1445         }
1446         else
1447         {
1448                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
1449         }
1450 }
1451
1452
1453
1454
1455 void server_mode(char **parameters, int pcnt, userrec *user)
1456 {
1457         chanrec* Ptr;
1458         userrec* dest;
1459         int can_change;
1460         int direction = 1;
1461         char outpars[MAXBUF];
1462
1463         dest = Find(parameters[0]);
1464
1465         // fix: ChroNiCk found this - we cant use this as debug if its null!
1466         if (dest)
1467         {
1468                 log(DEBUG,"server_mode on %s",dest->nick);
1469         }
1470
1471         if ((dest) && (pcnt > 1))
1472         {
1473                 log(DEBUG,"params > 1");
1474
1475                 char dmodes[MAXBUF];
1476                 strlcpy(dmodes,dest->modes,MAXBUF);
1477
1478                 strcpy(outpars,"+");
1479                 direction = 1;
1480
1481                 if ((parameters[1][0] != '+') && (parameters[1][0] != '-'))
1482                         return;
1483
1484                 for (int i = 0; i < strlen(parameters[1]); i++)
1485                 {
1486                         if (parameters[1][i] == '+')
1487                         {
1488                                 if (direction != 1)
1489                                 {
1490                                         if ((outpars[strlen(outpars)-1] == '+') || (outpars[strlen(outpars)-1] == '-'))
1491                                         {
1492                                                 outpars[strlen(outpars)-1] = '+';
1493                                         }
1494                                         else
1495                                         {
1496                                                 strcat(outpars,"+");
1497                                         }
1498                                 }
1499                                 direction = 1;
1500                         }
1501                         else
1502                         if (parameters[1][i] == '-')
1503                         {
1504                                 if (direction != 0)
1505                                 {
1506                                         if ((outpars[strlen(outpars)-1] == '+') || (outpars[strlen(outpars)-1] == '-'))
1507                                         {
1508                                                 outpars[strlen(outpars)-1] = '-';
1509                                         }
1510                                         else
1511                                         {
1512                                                 strcat(outpars,"-");
1513                                         }
1514                                 }
1515                                 direction = 0;
1516                         }
1517                         else
1518                         {
1519                                 log(DEBUG,"begin mode processing entry");
1520                                 can_change = 1;
1521                                 if (can_change)
1522                                 {
1523                                         if (direction == 1)
1524                                         {
1525                                                 log(DEBUG,"umode %c being added",parameters[1][i]);
1526                                                 if ((!strchr(dmodes,parameters[1][i])) && (allowed_umode(parameters[1][i],user->modes,true)))
1527                                                 {
1528                                                         char umode = parameters[1][i];
1529                                                         log(DEBUG,"umode %c is an allowed umode",umode);
1530                                                         if ((process_module_umode(umode, user, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
1531                                                         {
1532                                                                 dmodes[strlen(dmodes)+1]='\0';
1533                                                                 dmodes[strlen(dmodes)] = parameters[1][i];
1534                                                                 outpars[strlen(outpars)+1]='\0';
1535                                                                 outpars[strlen(outpars)] = parameters[1][i];
1536                                                         }
1537                                                 }
1538                                         }
1539                                         else
1540                                         {
1541                                                 // can only remove a mode they already have
1542                                                 log(DEBUG,"umode %c being removed",parameters[1][i]);
1543                                                 if ((allowed_umode(parameters[1][i],user->modes,false)) && (strchr(dmodes,parameters[1][i])))
1544                                                 {
1545                                                         char umode = parameters[1][i];
1546                                                         log(DEBUG,"umode %c is an allowed umode",umode);
1547                                                         if ((process_module_umode(umode, user, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
1548                                                         {
1549                                                                 int q = 0;
1550                                                                 char temp[MAXBUF];
1551                                                                 char moo[MAXBUF];
1552
1553                                                                 outpars[strlen(outpars)+1]='\0';
1554                                                                 outpars[strlen(outpars)] = parameters[1][i];
1555
1556                                                                 strcpy(temp,"");
1557                                                                 for (q = 0; q < strlen(dmodes); q++)
1558                                                                 {
1559                                                                         if (dmodes[q] != parameters[1][i])
1560                                                                         {
1561                                                                                 moo[0] = dmodes[q];
1562                                                                                 moo[1] = '\0';
1563                                                                                 strlcat(temp,moo,MAXBUF);
1564                                                                         }
1565                                                                 }
1566                                                                 strlcpy(dmodes,temp,MAXBUF);
1567                                                         }
1568                                                 }
1569                                         }
1570                                 }
1571                         }
1572                 }
1573                 if (strlen(outpars))
1574                 {
1575                         char b[MAXBUF];
1576                         strlcpy(b,"",MAXBUF);
1577                         int z = 0;
1578                         int i = 0;
1579                         while (i < strlen (outpars))
1580                         {
1581                                 b[z++] = outpars[i++];
1582                                 b[z] = '\0';
1583                                 if (i<strlen(outpars)-1)
1584                                 {
1585                                         if (((outpars[i] == '-') || (outpars[i] == '+')) && ((outpars[i+1] == '-') || (outpars[i+1] == '+')))
1586                                         {
1587                                                 // someones playing silly buggers and trying
1588                                                 // to put a +- or -+ into the line...
1589                                                 i++;
1590                                         }
1591                                 }
1592                                 if (i == strlen(outpars)-1)
1593                                 {
1594                                         if ((outpars[i] == '-') || (outpars[i] == '+'))
1595                                         {
1596                                                 i++;
1597                                         }
1598                                 }
1599                         }
1600
1601                         z = strlen(b)-1;
1602                         if ((b[z] == '-') || (b[z] == '+'))
1603                                 b[z] = '\0';
1604
1605                         if ((!strcmp(b,"+")) || (!strcmp(b,"-")))
1606                                 return;
1607
1608                         WriteTo(user, dest, "MODE %s :%s", dest->nick, b);
1609
1610                         // M token for a usermode must go to all servers
1611                         char buffer[MAXBUF];
1612                         snprintf(buffer,MAXBUF,"m %s %s %s",user->nick, dest->nick, b);
1613                         NetSendToAll(buffer);
1614
1615                         if (strlen(dmodes)>MAXMODES)
1616                         {
1617                                 dmodes[MAXMODES-1] = '\0';
1618                         }
1619                         log(DEBUG,"Stripped mode line");
1620                         log(DEBUG,"Line dest is now %s",dmodes);
1621                         strlcpy(dest->modes,dmodes,MAXMODES);
1622
1623                 }
1624
1625                 return;
1626         }
1627
1628         Ptr = FindChan(parameters[0]);
1629         if (Ptr)
1630         {
1631                 process_modes(parameters,user,Ptr,STATUS_OP,pcnt,true,false,false);
1632         }
1633         else
1634         {
1635                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
1636         }
1637 }
1638
1639
1640
1641 void merge_mode(char **parameters, int pcnt)
1642 {
1643         chanrec* Ptr;
1644         userrec* dest;
1645         int can_change;
1646         int direction = 1;
1647         char outpars[MAXBUF];
1648
1649         dest = Find(parameters[0]);
1650
1651         // fix: ChroNiCk found this - we cant use this as debug if its null!
1652         if (dest)
1653         {
1654                 log(DEBUG,"merge_mode on %s",dest->nick);
1655         }
1656
1657         if ((dest) && (pcnt > 1))
1658         {
1659                 log(DEBUG,"params > 1");
1660
1661                 char dmodes[MAXBUF];
1662                 strlcpy(dmodes,dest->modes,MAXBUF);
1663
1664                 strcpy(outpars,"+");
1665                 direction = 1;
1666
1667                 if ((parameters[1][0] != '+') && (parameters[1][0] != '-'))
1668                         return;
1669
1670                 for (int i = 0; i < strlen(parameters[1]); i++)
1671                 {
1672                         if (parameters[1][i] == '+')
1673                         {
1674                                 if (direction != 1)
1675                                 {
1676                                         if ((outpars[strlen(outpars)-1] == '+') || (outpars[strlen(outpars)-1] == '-'))
1677                                         {
1678                                                 outpars[strlen(outpars)-1] = '+';
1679                                         }
1680                                         else
1681                                         {
1682                                                 strcat(outpars,"+");
1683                                         }
1684                                 }
1685                                 direction = 1;
1686                         }
1687                         else
1688                         if (parameters[1][i] == '-')
1689                         {
1690                                 if (direction != 0)
1691                                 {
1692                                         if ((outpars[strlen(outpars)-1] == '+') || (outpars[strlen(outpars)-1] == '-'))
1693                                         {
1694                                                 outpars[strlen(outpars)-1] = '-';
1695                                         }
1696                                         else
1697                                         {
1698                                                 strcat(outpars,"-");
1699                                         }
1700                                 }
1701                                 direction = 0;
1702                         }
1703                         else
1704                         {
1705                                 log(DEBUG,"begin mode processing entry");
1706                                 can_change = 1;
1707                                 if (can_change)
1708                                 {
1709                                         if (direction == 1)
1710                                         {
1711                                                 log(DEBUG,"umode %c being added",parameters[1][i]);
1712                                                 if ((!strchr(dmodes,parameters[1][i])) && (allowed_umode(parameters[1][i],"o",true)))
1713                                                 {
1714                                                         char umode = parameters[1][i];
1715                                                         log(DEBUG,"umode %c is an allowed umode",umode);
1716                                                         if ((process_module_umode(umode, NULL, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
1717                                                         {
1718                                                                 dmodes[strlen(dmodes)+1]='\0';
1719                                                                 dmodes[strlen(dmodes)] = parameters[1][i];
1720                                                                 outpars[strlen(outpars)+1]='\0';
1721                                                                 outpars[strlen(outpars)] = parameters[1][i];
1722                                                         }
1723                                                 }
1724                                         }
1725                                         else
1726                                         {
1727                                                 // can only remove a mode they already have
1728                                                 log(DEBUG,"umode %c being removed",parameters[1][i]);
1729                                                 if ((allowed_umode(parameters[1][i],"o",false)) && (strchr(dmodes,parameters[1][i])))
1730                                                 {
1731                                                         char umode = parameters[1][i];
1732                                                         log(DEBUG,"umode %c is an allowed umode",umode);
1733                                                         if ((process_module_umode(umode, NULL, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
1734                                                         {
1735                                                                 int q = 0;
1736                                                                 char temp[MAXBUF];
1737                                                                 char moo[MAXBUF];
1738
1739                                                                 outpars[strlen(outpars)+1]='\0';
1740                                                                 outpars[strlen(outpars)] = parameters[1][i];
1741
1742                                                                 strcpy(temp,"");
1743                                                                 for (q = 0; q < strlen(dmodes); q++)
1744                                                                 {
1745                                                                         if (dmodes[q] != parameters[1][i])
1746                                                                         {
1747                                                                                 moo[0] = dmodes[q];
1748                                                                                 moo[1] = '\0';
1749                                                                                 strlcat(temp,moo,MAXBUF);
1750                                                                         }
1751                                                                 }
1752                                                                 strlcpy(dmodes,temp,MAXBUF);
1753                                                         }
1754                                                 }
1755                                         }
1756                                 }
1757                         }
1758                 }
1759                 if (strlen(outpars))
1760                 {
1761                         char b[MAXBUF];
1762                         strcpy(b,"");
1763                         int z = 0;
1764                         int i = 0;
1765                         while (i < strlen (outpars))
1766                         {
1767                                 b[z++] = outpars[i++];
1768                                 b[z] = '\0';
1769                                 if (i<strlen(outpars)-1)
1770                                 {
1771                                         if (((outpars[i] == '-') || (outpars[i] == '+')) && ((outpars[i+1] == '-') || (outpars[i+1] == '+')))
1772                                         {
1773                                                 // someones playing silly buggers and trying
1774                                                 // to put a +- or -+ into the line...
1775                                                 i++;
1776                                         }
1777                                 }
1778                                 if (i == strlen(outpars)-1)
1779                                 {
1780                                         if ((outpars[i] == '-') || (outpars[i] == '+'))
1781                                         {
1782                                                 i++;
1783                                         }
1784                                 }
1785                         }
1786
1787                         z = strlen(b)-1;
1788                         if ((b[z] == '-') || (b[z] == '+'))
1789                                 b[z] = '\0';
1790
1791                         if ((!strcmp(b,"+")) || (!strcmp(b,"-")))
1792                                 return;
1793
1794                         if (strlen(dmodes)>MAXMODES)
1795                         {
1796                                 dmodes[MAXMODES-1] = '\0';
1797                         }
1798                         log(DEBUG,"Stripped mode line");
1799                         log(DEBUG,"Line dest is now %s",dmodes);
1800                         strlcpy(dest->modes,dmodes,MAXMODES);
1801
1802                 }
1803
1804                 return;
1805         }
1806
1807         Ptr = FindChan(parameters[0]);
1808         if (Ptr)
1809         {
1810                 userrec s2;
1811                 strlcpy(s2.nick,ServerName,NICKMAX);
1812                 strcpy(s2.modes,"o");
1813                 s2.fd = -1;
1814                 process_modes(parameters,&s2,Ptr,STATUS_OP,pcnt,true,true,false);
1815         }
1816 }
1817
1818
1819 void merge_mode2(char **parameters, int pcnt, userrec* user)
1820 {
1821         chanrec* Ptr;
1822         userrec* dest;
1823         int can_change;
1824         int direction = 1;
1825         char outpars[MAXBUF];
1826
1827         dest = Find(parameters[0]);
1828
1829         // fix: ChroNiCk found this - we cant use this as debug if its null!
1830         if (dest)
1831         {
1832                 log(DEBUG,"merge_mode on %s",dest->nick);
1833         }
1834
1835         if ((dest) && (pcnt > 1))
1836         {
1837                 log(DEBUG,"params > 1");
1838
1839                 char dmodes[MAXBUF];
1840                 strlcpy(dmodes,dest->modes,MAXBUF);
1841
1842                 strcpy(outpars,"+");
1843                 direction = 1;
1844
1845                 if ((parameters[1][0] == ':') && (strlen(parameters[1])>1))
1846                 {
1847                         // some stupid 3rd party things (such as services packages) put a colon on the mode list...
1848                         log(DEBUG,"Some muppet put a colon on the modelist! changed to '%s'",++parameters[1]);
1849                 }
1850                 if ((parameters[1][0] != '+') && (parameters[1][0] != '-'))
1851                 return;
1852
1853                 for (int i = 0; i < strlen(parameters[1]); i++)
1854                 {
1855                         if (parameters[1][i] == '+')
1856                         {
1857                                 if (direction != 1)
1858                                 {
1859                                         if ((outpars[strlen(outpars)-1] == '+') || (outpars[strlen(outpars)-1] == '-'))
1860                                         {
1861                                                 outpars[strlen(outpars)-1] = '+';
1862                                         }
1863                                         else
1864                                         {
1865                                                 strcat(outpars,"+");
1866                                         }
1867                                 }
1868                                 direction = 1;
1869                         }
1870                         else
1871                         if (parameters[1][i] == '-')
1872                         {
1873                                 if (direction != 0)
1874                                 {
1875                                         if ((outpars[strlen(outpars)-1] == '+') || (outpars[strlen(outpars)-1] == '-'))
1876                                         {
1877                                                 outpars[strlen(outpars)-1] = '-';
1878                                         }
1879                                         else
1880                                         {
1881                                                 strcat(outpars,"-");
1882                                         }
1883                                 }
1884                                 direction = 0;
1885                         }
1886                         else
1887                         {
1888                                 log(DEBUG,"begin mode processing entry");
1889                                 can_change = 1;
1890                                 if (can_change)
1891                                 {
1892                                         if (direction == 1)
1893                                         {
1894                                                 log(DEBUG,"umode %c being added",parameters[1][i]);
1895                                                 if ((!strchr(dmodes,parameters[1][i])) && (allowed_umode(parameters[1][i],user->modes,true)))
1896                                                 {
1897                                                         char umode = parameters[1][i];
1898                                                         log(DEBUG,"umode %c is an allowed umode",umode);
1899                                                         if ((process_module_umode(umode, NULL, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
1900                                                         {
1901                                                                 dmodes[strlen(dmodes)+1]='\0';
1902                                                                 dmodes[strlen(dmodes)] = parameters[1][i];
1903                                                                 outpars[strlen(outpars)+1]='\0';
1904                                                                 outpars[strlen(outpars)] = parameters[1][i];
1905                                                                 log(DEBUG,"OUTPARS='%s', DMODES='%s'",outpars,dmodes);
1906                                                         }
1907                                                 }
1908                                         }
1909                                         else
1910                                         {
1911                                                 // can only remove a mode they already have
1912                                                 log(DEBUG,"umode %c being removed",parameters[1][i]);
1913                                                 if ((allowed_umode(parameters[1][i],user->modes,false)) && (strchr(dmodes,parameters[1][i])))
1914                                                 {
1915                                                         char umode = parameters[1][i];
1916                                                         log(DEBUG,"umode %c is an allowed umode",umode);
1917                                                         if ((process_module_umode(umode, NULL, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
1918                                                         {
1919                                                                 int q = 0;
1920                                                                 char temp[MAXBUF];
1921                                                                 char moo[MAXBUF];
1922
1923                                                                 outpars[strlen(outpars)+1]='\0';
1924                                                                 outpars[strlen(outpars)] = parameters[1][i];
1925
1926                                                                 strcpy(temp,"");
1927                                                                 for (q = 0; q < strlen(dmodes); q++)
1928                                                                 {
1929                                                                         if (dmodes[q] != parameters[1][i])
1930                                                                         {
1931                                                                                 moo[0] = dmodes[q];
1932                                                                                 moo[1] = '\0';
1933                                                                                 strlcat(temp,moo,MAXBUF);
1934                                                                         }
1935                                                                 }
1936                                                                 strlcpy(dmodes,temp,MAXBUF);
1937                                                         }
1938                                                 }
1939                                         }
1940                                 }
1941                         }
1942                 }
1943                 log(DEBUG,"DONE! OUTPARS='%s', DMODES='%s'",outpars,dmodes);
1944                 if (strlen(outpars))
1945                 {
1946                         char b[MAXBUF];
1947                         strcpy(b,"");
1948                         int z = 0;
1949                         int i = 0;
1950                         while (i < strlen (outpars))
1951                         {
1952                                 b[z++] = outpars[i++];
1953                                 b[z] = '\0';
1954                                 if (i<strlen(outpars)-1)
1955                                 {
1956                                         if (((outpars[i] == '-') || (outpars[i] == '+')) && ((outpars[i+1] == '-') || (outpars[i+1] == '+')))
1957                                         {
1958                                                 // someones playing silly buggers and trying
1959                                                 // to put a +- or -+ into the line...
1960                                                 i++;
1961                                         }
1962                                 }
1963                                 if (i == strlen(outpars)-1)
1964                                 {
1965                                         if ((outpars[i] == '-') || (outpars[i] == '+'))
1966                                         {
1967                                                 i++;
1968                                         }
1969                                 }
1970                         }
1971
1972                         z = strlen(b)-1;
1973                         if ((b[z] == '-') || (b[z] == '+'))
1974                                 b[z] = '\0';
1975
1976                         if ((!strcmp(b,"+")) || (!strcmp(b,"-")))
1977                                 return;
1978
1979                         // was sending 'b'
1980                         WriteTo(user,dest,"MODE %s :%s",dest->nick,b);
1981                         log(DEBUG,"Sent: :%s MODE %s",user->nick,b);
1982
1983                         if (strlen(dmodes)>MAXMODES)
1984                         {
1985                                 dmodes[MAXMODES-1] = '\0';
1986                         }
1987                         log(DEBUG,"Stripped mode line");
1988                         log(DEBUG,"Line dest is now %s",dmodes);
1989                         strlcpy(dest->modes,dmodes,MAXMODES);
1990
1991                 }
1992
1993                 return;
1994         }
1995
1996         Ptr = FindChan(parameters[0]);
1997         if (Ptr)
1998         {
1999                 log(DEBUG,"merge_mode2: found channel %s",Ptr->name);
2000                 if (Ptr)
2001                 {
2002                         if ((cstatus(user,Ptr) < STATUS_HOP) && (!is_uline(user->server)))
2003                         {
2004                                 return;
2005                         }
2006                         process_modes(parameters,user,Ptr,cstatus(user,Ptr),pcnt,false,false,true);
2007                 }
2008         }
2009 }
2010
2011