src/mode.cpp

   1 /*       +------------------------------------+
   2  *       | Inspire Internet Relay Chat Daemon |
   3  *       +------------------------------------+
   4  *
   5  *  Inspire is copyright (C) 2002-2004 ChatSpike-Dev.
   6  *                       E-mail:
   7  *                <brain@chatspike.net>
   8  *                <Craig@chatspike.net>
   9  *
  10  * Written by Craig Edwards, Craig McLure, and others.
  11  * This program is free but copyrighted software; see
  12  *            the file COPYING for details.
  13  *
  14  * ---------------------------------------------------
  15  */
  16
  17 #include "inspircd.h"
  18 #include "inspircd_io.h"
  19 #include "inspircd_util.h"
  20 #include "inspircd_config.h"
  21 #include <unistd.h>
  22 #include <fcntl.h>
  23 #include <sys/errno.h>
  24 #include <sys/ioctl.h>
  25 #include <sys/utsname.h>
  26 #include <cstdio>
  27 #include <time.h>
  28 #include <string>
  29 #ifdef GCC3
  30 #include <ext/hash_map>
  31 #else
  32 #include <hash_map>
  33 #endif
  34 #include <map>
  35 #include <sstream>
  36 #include <vector>
  37 #include <errno.h>
  38 #include <deque>
  39 #include <errno.h>
  40 #include <unistd.h>
  41 #include <sched.h>
  42 #include "connection.h"
  43 #include "users.h"
  44 #include "servers.h"
  45 #include "ctables.h"
  46 #include "globals.h"
  47 #include "modules.h"
  48 #include "dynamic.h"
  49 #include "wildcard.h"
  50 #include "message.h"
  51 #include "commands.h"
  52 #include "xline.h"
  53 #include "inspstring.h"
  54
  55 using namespace std;
  56
  57 extern int MODCOUNT;
  58 extern std::vector<Module*> modules;
  59 extern std::vector<ircd_module*> factory;
  60 extern std::vector<std::string> module_names;
  61
  62
  63 extern int LogLevel;
  64 extern char ServerName[MAXBUF];
  65 extern char Network[MAXBUF];
  66 extern char ServerDesc[MAXBUF];
  67 extern char AdminName[MAXBUF];
  68 extern char AdminEmail[MAXBUF];
  69 extern char AdminNick[MAXBUF];
  70 extern char diepass[MAXBUF];
  71 extern char restartpass[MAXBUF];
  72 extern char motd[MAXBUF];
  73 extern char rules[MAXBUF];
  74 extern char list[MAXBUF];
  75 extern char PrefixQuit[MAXBUF];
  76 extern char DieValue[MAXBUF];
  77
  78 extern bool AllowHalfop;
  79 extern bool AllowProtect;
  80 extern bool AllowFounder;
  81
  82 extern time_t TIME;
  83
  84 char* give_ops(userrec *user,char *dest,chanrec *chan,int status)
  85 {
  86         userrec *d;
  87         int i;
  88
  89         if ((!user) || (!dest) || (!chan))
  90         {
  91                 log(DEFAULT,"*** BUG *** give_ops was given an invalid parameter");
  92                 return NULL;
  93         }
  94
  95         if (!isnick(dest))
  96         {
  97                 log(DEFAULT,"the target nickname given to give_ops was invalid");
  98                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
  99                 return NULL;
 100         }
 101         d = Find(dest);
 102         if (!d)
 103         {
 104                 log(DEFAULT,"the target nickname given to give_ops couldnt be found");
 105                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
 106                 return NULL;
 107         }
 108         else
 109         {
 110
 111                 int MOD_RESULT = 0;
 112                 FOREACH_RESULT(OnAccessCheck(user,d,chan,AC_OP));
 113
 114                 if (MOD_RESULT == ACR_DENY)
 115                         return NULL;
 116                 if (MOD_RESULT == ACR_DEFAULT)
 117                 {
 118                         if ((status < STATUS_OP) && (!is_uline(user->server)))
 119                         {
 120                                 log(DEBUG,"%s cant give ops to %s because they nave status %d and needs %d",user->nick,dest,status,STATUS_OP);
 121                                 WriteServ(user->fd,"482 %s %s :You're not a channel operator",user->nick, chan->name);
 122                                 return NULL;
 123                         }
 124                 }
 125
 126
 127                 for (int i = 0; i != MAXCHANS; i++)
 128                 {
 129                         if ((d->chans[i].channel != NULL) && (chan != NULL))
 130                         if (!strcasecmp(d->chans[i].channel->name,chan->name))
 131                         {
 132                         if (d->chans[i].uc_modes & UCMODE_OP)
 133                                 {
 134                                         /* mode already set on user, dont allow multiple */
 135                                         log(DEFAULT,"The target user given to give_ops was already opped on the channel");
 136                                         return NULL;
 137                                 }
 138                                 d->chans[i].uc_modes = d->chans[i].uc_modes | UCMODE_OP;
 139                                 log(DEBUG,"gave ops: %s %s",d->chans[i].channel->name,d->nick);
 140                                 return d->nick;
 141                         }
 142                 }
 143                 log(DEFAULT,"The target channel given to give_ops was not in the users mode list");
 144         }
 145         return NULL;
 146 }
 147
 148 char* give_hops(userrec *user,char *dest,chanrec *chan,int status)
 149 {
 150         userrec *d;
 151         int i;
 152
 153         if ((!user) || (!dest) || (!chan))
 154         {
 155                 log(DEFAULT,"*** BUG *** give_hops was given an invalid parameter");
 156                 return NULL;
 157         }
 158
 159         d = Find(dest);
 160         if (!isnick(dest))
 161         {
 162                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
 163                 return NULL;
 164         }
 165         if (!d)
 166         {
 167                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
 168                 return NULL;
 169         }
 170         else
 171         {
 172                 int MOD_RESULT = 0;
 173                 FOREACH_RESULT(OnAccessCheck(user,d,chan,AC_HALFOP));
 174
 175                 if (MOD_RESULT == ACR_DENY)
 176                         return NULL;
 177                 if (MOD_RESULT == ACR_DEFAULT)
 178                 {
 179                         if ((status < STATUS_OP) && (!is_uline(user->server)))
 180                         {
 181                                 WriteServ(user->fd,"482 %s %s :You're not a channel operator",user->nick, chan->name);
 182                                 return NULL;
 183                         }
 184                 }
 185
 186                 for (int i = 0; i != MAXCHANS; i++)
 187                 {
 188                         if ((d->chans[i].channel != NULL) && (chan != NULL))
 189                         if (!strcasecmp(d->chans[i].channel->name,chan->name))
 190                         {
 191                                 if (d->chans[i].uc_modes & UCMODE_HOP)
 192                                 {
 193                                         /* mode already set on user, dont allow multiple */
 194                                         return NULL;
 195                                 }
 196                                 d->chans[i].uc_modes = d->chans[i].uc_modes | UCMODE_HOP;
 197                                 log(DEBUG,"gave h-ops: %s %s",d->chans[i].channel->name,d->nick);
 198                                 return d->nick;
 199                         }
 200                 }
 201         }
 202         return NULL;
 203 }
 204
 205 char* give_voice(userrec *user,char *dest,chanrec *chan,int status)
 206 {
 207         userrec *d;
 208         int i;
 209
 210         if ((!user) || (!dest) || (!chan))
 211         {
 212                 log(DEFAULT,"*** BUG *** give_voice was given an invalid parameter");
 213                 return NULL;
 214         }
 215
 216         d = Find(dest);
 217         if (!isnick(dest))
 218         {
 219                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
 220                 return NULL;
 221         }
 222         if (!d)
 223         {
 224                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
 225                 return NULL;
 226         }
 227         else
 228         {
 229                 int MOD_RESULT = 0;
 230                 FOREACH_RESULT(OnAccessCheck(user,d,chan,AC_VOICE));
 231
 232                 if (MOD_RESULT == ACR_DENY)
 233                         return NULL;
 234                 if (MOD_RESULT == ACR_DEFAULT)
 235                 {
 236                         if ((status < STATUS_HOP) && (!is_uline(user->server)))
 237                         {
 238                                 WriteServ(user->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel",user->nick, chan->name);
 239                                 return NULL;
 240                         }
 241                 }
 242
 243                 for (int i = 0; i != MAXCHANS; i++)
 244                 {
 245                         if ((d->chans[i].channel != NULL) && (chan != NULL))
 246                         if (!strcasecmp(d->chans[i].channel->name,chan->name))
 247                         {
 248                                 if (d->chans[i].uc_modes & UCMODE_VOICE)
 249                                 {
 250                                         /* mode already set on user, dont allow multiple */
 251                                         return NULL;
 252                                 }
 253                                 d->chans[i].uc_modes = d->chans[i].uc_modes | UCMODE_VOICE;
 254                                 log(DEBUG,"gave voice: %s %s",d->chans[i].channel->name,d->nick);
 255                                 return d->nick;
 256                         }
 257                 }
 258         }
 259         return NULL;
 260 }
 261
 262 char* take_ops(userrec *user,char *dest,chanrec *chan,int status)
 263 {
 264         userrec *d;
 265         int i;
 266
 267         if ((!user) || (!dest) || (!chan))
 268         {
 269                 log(DEFAULT,"*** BUG *** take_ops was given an invalid parameter");
 270                 return NULL;
 271         }
 272
 273         d = Find(dest);
 274         if (!isnick(dest))
 275         {
 276                 log(DEBUG,"take_ops was given an invalid target nickname of %s",dest);
 277                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
 278                 return NULL;
 279         }
 280         if (!d)
 281         {
 282                 log(DEBUG,"take_ops couldnt resolve the target nickname: %s",dest);
 283                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
 284                 return NULL;
 285         }
 286         else
 287         {
 288                 int MOD_RESULT = 0;
 289                 FOREACH_RESULT(OnAccessCheck(user,d,chan,AC_DEOP));
 290
 291                 if (MOD_RESULT == ACR_DENY)
 292                         return NULL;
 293                 if (MOD_RESULT == ACR_DEFAULT)
 294                 {
 295                         if ((status < STATUS_OP) && (!is_uline(user->server)))
 296                         {
 297                                 WriteServ(user->fd,"482 %s %s :You are not a channel operator",user->nick, chan->name);
 298                                 return NULL;
 299                         }
 300                 }
 301
 302                 for (int i = 0; i != MAXCHANS; i++)
 303                 {
 304                         if ((d->chans[i].channel != NULL) && (chan != NULL))
 305                         if (!strcasecmp(d->chans[i].channel->name,chan->name))
 306                         {
 307                                 if ((d->chans[i].uc_modes & UCMODE_OP) == 0)
 308                                 {
 309                                         /* mode already set on user, dont allow multiple */
 310                                         return NULL;
 311                                 }
 312                                 d->chans[i].uc_modes ^= UCMODE_OP;
 313                                 log(DEBUG,"took ops: %s %s",d->chans[i].channel->name,d->nick);
 314                                 return d->nick;
 315                         }
 316                 }
 317                 log(DEBUG,"take_ops couldnt locate the target channel in the target users list");
 318         }
 319         return NULL;
 320 }
 321
 322 char* take_hops(userrec *user,char *dest,chanrec *chan,int status)
 323 {
 324         userrec *d;
 325         int i;
 326
 327         if ((!user) || (!dest) || (!chan))
 328         {
 329                 log(DEFAULT,"*** BUG *** take_hops was given an invalid parameter");
 330                 return NULL;
 331         }
 332
 333         d = Find(dest);
 334         if (!isnick(dest))
 335         {
 336                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
 337                 return NULL;
 338         }
 339         if (!d)
 340         {
 341                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
 342                 return NULL;
 343         }
 344         else
 345         {
 346                 int MOD_RESULT = 0;
 347                 FOREACH_RESULT(OnAccessCheck(user,d,chan,AC_DEHALFOP));
 348
 349                 if (MOD_RESULT == ACR_DENY)
 350                         return NULL;
 351                 if (MOD_RESULT == ACR_DEFAULT)
 352                 {
 353                         if ((status < STATUS_OP) && (!is_uline(user->server)))
 354                         {
 355                                 WriteServ(user->fd,"482 %s %s :You are not a channel operator",user->nick, chan->name);
 356                                 return NULL;
 357                         }
 358                 }
 359
 360                 for (int i = 0; i != MAXCHANS; i++)
 361                 {
 362                         if ((d->chans[i].channel != NULL) && (chan != NULL))
 363                         if (!strcasecmp(d->chans[i].channel->name,chan->name))
 364                         {
 365                                 if ((d->chans[i].uc_modes & UCMODE_HOP) == 0)
 366                                 {
 367                                         /* mode already set on user, dont allow multiple */
 368                                         return NULL;
 369                                 }
 370                                 d->chans[i].uc_modes ^= UCMODE_HOP;
 371                                 log(DEBUG,"took h-ops: %s %s",d->chans[i].channel->name,d->nick);
 372                                 return d->nick;
 373                         }
 374                 }
 375         }
 376         return NULL;
 377 }
 378
 379 char* take_voice(userrec *user,char *dest,chanrec *chan,int status)
 380 {
 381         userrec *d;
 382         int i;
 383
 384         if ((!user) || (!dest) || (!chan))
 385         {
 386                 log(DEFAULT,"*** BUG *** take_voice was given an invalid parameter");
 387                 return NULL;
 388         }
 389
 390         d = Find(dest);
 391         if (!isnick(dest))
 392         {
 393                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
 394                 return NULL;
 395         }
 396         if (!d)
 397         {
 398                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
 399                 return NULL;
 400         }
 401         else
 402         {
 403                 int MOD_RESULT = 0;
 404                 FOREACH_RESULT(OnAccessCheck(user,d,chan,AC_DEVOICE));
 405
 406                 if (MOD_RESULT == ACR_DENY)
 407                         return NULL;
 408                 if (MOD_RESULT == ACR_DEFAULT)
 409                 {
 410                         if ((status < STATUS_HOP) && (!is_uline(user->server)))
 411                         {
 412                                 WriteServ(user->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel",user->nick, chan->name);
 413                                 return NULL;
 414                         }
 415                 }
 416
 417                 for (int i = 0; i != MAXCHANS; i++)
 418                 {
 419                         if ((d->chans[i].channel != NULL) && (chan != NULL))
 420                         if (!strcasecmp(d->chans[i].channel->name,chan->name))
 421                         {
 422                                 if ((d->chans[i].uc_modes & UCMODE_VOICE) == 0)
 423                                 {
 424                                         /* mode already set on user, dont allow multiple */
 425                                         return NULL;
 426                                 }
 427                                 d->chans[i].uc_modes ^= UCMODE_VOICE;
 428                                 log(DEBUG,"took voice: %s %s",d->chans[i].channel->name,d->nick);
 429                                 return d->nick;
 430                         }
 431                 }
 432         }
 433         return NULL;
 434 }
 435
 436 char* add_ban(userrec *user,char *dest,chanrec *chan,int status)
 437 {
 438         if ((!user) || (!dest) || (!chan)) {
 439                 log(DEFAULT,"*** BUG *** add_ban was given an invalid parameter");
 440                 return NULL;
 441         }
 442
 443         BanItem b;
 444         if ((!user) || (!dest) || (!chan))
 445                 return NULL;
 446         if (strchr(dest,'!')==0)
 447                 return NULL;
 448         if (strchr(dest,'@')==0)
 449                 return NULL;
 450         for (int i = 0; i < strlen(dest); i++)
 451                 if (dest[i] < 32)
 452                         return NULL;
 453         for (int i = 0; i < strlen(dest); i++)
 454                 if (dest[i] > 126)
 455                         return NULL;
 456         int c = 0;
 457         for (int i = 0; i < strlen(dest); i++)
 458                 if (dest[i] == '!')
 459                         c++;
 460         if (c>1)
 461                 return NULL;
 462         c = 0;
 463         for (int i = 0; i < strlen(dest); i++)
 464                 if (dest[i] == '@')
 465                         c++;
 466         if (c>1)
 467                 return NULL;
 468
 469         long maxbans = GetMaxBans(chan->name);
 470         if (chan->bans.size() > maxbans)
 471         {
 472                 WriteServ(user->fd,"478 %s %s :Channel ban list for %s is full (maximum entries for this channel is %d)",user->nick, chan->name,chan->name,maxbans);
 473                 return NULL;
 474         }
 475
 476         log(DEBUG,"add_ban: %s %s",chan->name,user->nick);
 477
 478         TidyBan(dest);
 479         for (BanList::iterator i = chan->bans.begin(); i != chan->bans.end(); i++)
 480         {
 481                 if (!strcasecmp(i->data,dest))
 482                 {
 483                         // dont allow a user to set the same ban twice
 484                         return NULL;
 485                 }
 486         }
 487
 488         b.set_time = TIME;
 489         strncpy(b.data,dest,MAXBUF);
 490         strncpy(b.set_by,user->nick,NICKMAX);
 491         chan->bans.push_back(b);
 492         return dest;
 493 }
 494
 495 char* take_ban(userrec *user,char *dest,chanrec *chan,int status)
 496 {
 497         if ((!user) || (!dest) || (!chan)) {
 498                 log(DEFAULT,"*** BUG *** take_ban was given an invalid parameter");
 499                 return 0;
 500         }
 501
 502         log(DEBUG,"del_ban: %s %s",chan->name,user->nick);
 503         for (BanList::iterator i = chan->bans.begin(); i != chan->bans.end(); i++)
 504         {
 505                 if (!strcasecmp(i->data,dest))
 506                 {
 507                         chan->bans.erase(i);
 508                         return dest;
 509                 }
 510         }
 511         return NULL;
 512 }
 513
 514 void process_modes(char **parameters,userrec* user,chanrec *chan,int status, int pcnt, bool servermode, bool silent, bool local)
 515 {
 516         if (!parameters) {
 517                 log(DEFAULT,"*** BUG *** process_modes was given an invalid parameter");
 518                 return;
 519         }
 520
 521         char modelist[MAXBUF];
 522         char outlist[MAXBUF];
 523         char outstr[MAXBUF];
 524         char outpars[32][MAXBUF];
 525         int param = 2;
 526         int pc = 0;
 527         int ptr = 0;
 528         int mdir = 1;
 529         char* r = NULL;
 530         bool k_set = false, l_set = false;
 531
 532         if (pcnt < 2)
 533         {
 534                 return;
 535         }
 536
 537         int MOD_RESULT = 0;
 538         FOREACH_RESULT(OnAccessCheck(user,NULL,chan,AC_GENERAL_MODE));
 539
 540         if (MOD_RESULT == ACR_DENY)
 541                 return;
 542
 543         log(DEBUG,"process_modes: start: parameters=%d",pcnt);
 544
 545         strlcpy(modelist,parameters[1],MAXBUF); /* mode list, e.g. +oo-o *
 546                                                  * parameters[2] onwards are parameters for
 547                                                  * modes that require them :) */
 548         strlcpy(outlist,"+",MAXBUF);
 549         mdir = 1;
 550
 551         log(DEBUG,"process_modes: modelist: %s",modelist);
 552
 553         for (ptr = 0; ptr < strlen(modelist); ptr++)
 554         {
 555                 r = NULL;
 556
 557                 {
 558                         log(DEBUG,"process_modes: modechar: %c",modelist[ptr]);
 559                         char modechar = modelist[ptr];
 560                         switch (modelist[ptr])
 561                         {
 562                                 case '-':
 563                                         if (mdir != 0)
 564                                         {
 565                                                 if ((outlist[strlen(outlist)-1] == '+') || (outlist[strlen(outlist)-1] == '-'))
 566                                                 {
 567                                                         outlist[strlen(outlist)-1] = '-';
 568                                                 }
 569                                                 else
 570                                                 {
 571                                                         strcat(outlist,"-");
 572                                                 }
 573                                         }
 574                                         mdir = 0;
 575
 576                                 break;
 577
 578                                 case '+':
 579                                         if (mdir != 1)
 580                                         {
 581                                                 if ((outlist[strlen(outlist)-1] == '+') || (outlist[strlen(outlist)-1] == '-'))
 582                                                 {
 583                                                         outlist[strlen(outlist)-1] = '+';
 584                                                 }
 585                                                 else
 586                                                 {
 587                                                         strcat(outlist,"+");
 588                                                 }
 589                                         }
 590                                         mdir = 1;
 591                                 break;
 592
 593                                 case 'o':
 594                                         log(DEBUG,"Ops");
 595                                         if ((param >= pcnt)) break;
 596                                         log(DEBUG,"Enough parameters left");
 597                                         if (mdir == 1)
 598                                         {
 599                                                 log(DEBUG,"calling give_ops");
 600                                                 r = give_ops(user,parameters[param++],chan,status);
 601                                         }
 602                                         else
 603                                         {
 604                                                 log(DEBUG,"calling take_ops");
 605                                                 r = take_ops(user,parameters[param++],chan,status);
 606                                         }
 607                                         if (r)
 608                                         {
 609                                                 strlcat(outlist,"o",MAXBUF);
 610                                                 strlcpy(outpars[pc++],r,MAXBUF);
 611                                         }
 612                                 break;
 613
 614                                 case 'h':
 615                                         if (((param >= pcnt)) || (!AllowHalfop)) break;
 616                                         if (mdir == 1)
 617                                         {
 618                                                 r = give_hops(user,parameters[param++],chan,status);
 619                                         }
 620                                         else
 621                                         {
 622                                                 r = take_hops(user,parameters[param++],chan,status);
 623                                         }
 624                                         if (r)
 625                                         {
 626                                                 strlcat(outlist,"h",MAXBUF);
 627                                                 strlcpy(outpars[pc++],r,MAXBUF);
 628                                         }
 629                                 break;
 630
 631
 632                                 case 'v':
 633                                         if ((param >= pcnt)) break;
 634                                         if (mdir == 1)
 635                                         {
 636                                                 r = give_voice(user,parameters[param++],chan,status);
 637                                         }
 638                                         else
 639                                         {
 640                                                 r = take_voice(user,parameters[param++],chan,status);
 641                                         }
 642                                         if (r)
 643                                         {
 644                                                 strlcat(outlist,"v",MAXBUF);
 645                                                 strlcpy(outpars[pc++],r,MAXBUF);
 646                                         }
 647                                 break;
 648
 649                                 case 'b':
 650                                         if ((param >= pcnt)) break;
 651                                         if (mdir == 1)
 652                                         {
 653                                                 r = add_ban(user,parameters[param++],chan,status);
 654                                         }
 655                                         else
 656                                         {
 657                                                 r = take_ban(user,parameters[param++],chan,status);
 658                                         }
 659                                         if (r)
 660                                         {
 661                                                 strlcat(outlist,"b",MAXBUF);
 662                                                 strlcpy(outpars[pc++],parameters[param-1],MAXBUF);
 663                                         }
 664                                 break;
 665
 666
 667                                 case 'k':
 668                                         if ((param >= pcnt))
 669                                                 break;
 670
 671                                         if (mdir == 1)
 672                                         {
 673                                                 if (k_set)
 674                                                         break;
 675
 676                                                 if (!strcmp(chan->key,""))
 677                                                 {
 678                                                         strcat(outlist,"k");
 679                                                         char key[MAXBUF];
 680                                                         strlcpy(key,parameters[param++],MAXBUF);
 681                                                         if (strlen(key)>32) {
 682                                                                 key[31] = '\0';
 683                                                         }
 684                                                         strlcpy(outpars[pc++],key,MAXBUF);
 685                                                         strlcpy(chan->key,key,MAXBUF);
 686                                                         k_set = true;
 687                                                 }
 688                                         }
 689                                         else
 690                                         {
 691                                                 /* checks on -k are case sensitive and only accurate to the
 692                                                    first 32 characters */
 693                                                 char key[MAXBUF];
 694                                                 strlcpy(key,parameters[param++],MAXBUF);
 695                                                 if (strlen(key)>32) {
 696                                                         key[31] = '\0';
 697                                                 }
 698                                                 /* only allow -k if correct key given */
 699                                                 if (!strcmp(chan->key,key))
 700                                                 {
 701                                                         strlcat(outlist,"k",MAXBUF);
 702                                                         strlcpy(chan->key,"",MAXBUF);
 703                                                         strlcpy(outpars[pc++],key,MAXBUF);
 704                                                 }
 705                                         }
 706                                 break;
 707
 708                                 case 'l':
 709                                         if (mdir == 0)
 710                                         {
 711                                                 if (chan->limit)
 712                                                 {
 713                                                         strcat(outlist,"l");
 714                                                         chan->limit = 0;
 715                                                 }
 716                                         }
 717
 718                                         if ((param >= pcnt)) break;
 719                                         if (mdir == 1)
 720                                         {
 721                                                 if (l_set)
 722                                                         break;
 723
 724                                                 bool invalid = false;
 725                                                 for (int i = 0; i < strlen(parameters[param]); i++)
 726                                                 {
 727                                                         if ((parameters[param][i] < '0') || (parameters[param][i] > '9'))
 728                                                         {
 729                                                                 invalid = true;
 730                                                         }
 731                                                 }
 732                                                 if (atoi(parameters[param]) < 1)
 733                                                 {
 734                                                         invalid = true;
 735                                                 }
 736
 737                                                 if (invalid)
 738                                                         break;
 739
 740                                                 chan->limit = atoi(parameters[param]);
 741
 742                                                 // reported by mech: large values cause underflow
 743                                                 if (chan->limit < 0)
 744                                                         chan->limit = 0x7FFFFF;
 745
 746                                                 if (chan->limit)
 747                                                 {
 748                                                         strlcat(outlist,"l",MAXBUF);
 749                                                         strlcpy(outpars[pc++],parameters[param++],MAXBUF);
 750                                                         l_set = true;
 751                                                 }
 752                                         }
 753                                 break;
 754
 755                                 case 'i':
 756                                         if (chan->inviteonly != mdir)
 757                                         {
 758                                                 strlcat(outlist,"i",MAXBUF);
 759                                         }
 760                                         chan->inviteonly = mdir;
 761                                 break;
 762
 763                                 case 't':
 764                                         if (chan->topiclock != mdir)
 765                                         {
 766                                                 strlcat(outlist,"t",MAXBUF);
 767                                         }
 768                                         chan->topiclock = mdir;
 769                                 break;
 770
 771                                 case 'n':
 772                                         if (chan->noexternal != mdir)
 773                                         {
 774                                                 strlcat(outlist,"n",MAXBUF);
 775                                         }
 776                                         chan->noexternal = mdir;
 777                                 break;
 778
 779                                 case 'm':
 780                                         if (chan->moderated != mdir)
 781                                         {
 782                                                 strlcat(outlist,"m",MAXBUF);
 783                                         }
 784                                         chan->moderated = mdir;
 785                                 break;
 786
 787                                 case 's':
 788                                         if (chan->secret != mdir)
 789                                         {
 790                                                 strcat(outlist,"s");
 791                                                 if (chan->c_private)
 792                                                 {
 793                                                         chan->c_private = 0;
 794                                                         if (mdir)
 795                                                         {
 796                                                                 strlcat(outlist,"-p+",MAXBUF);
 797                                                         }
 798                                                         else
 799                                                         {
 800                                                                 strlcat(outlist,"+p-",MAXBUF);
 801                                                         }
 802                                                 }
 803                                         }
 804                                         chan->secret = mdir;
 805                                 break;
 806
 807                                 case 'p':
 808                                         if (chan->c_private != mdir)
 809                                         {
 810                                                 strlcat(outlist,"p",MAXBUF);
 811                                                 if (chan->secret)
 812                                                 {
 813                                                         chan->secret = 0;
 814                                                         if (mdir)
 815                                                         {
 816                                                                 strlcat(outlist,"-s+",MAXBUF);
 817                                                         }
 818                                                         else
 819                                                         {
 820                                                                 strlcat(outlist,"+s-",MAXBUF);
 821                                                         }
 822                                                 }
 823                                         }
 824                                         chan->c_private = mdir;
 825                                 break;
 826
 827                                 default:
 828                                         log(DEBUG,"Preprocessing custom mode %c: modelist: %s",modechar,chan->custom_modes);
 829                                         string_list p;
 830                                         p.clear();
 831                                         if (((!strchr(chan->custom_modes,modechar)) && (!mdir)) || ((strchr(chan->custom_modes,modechar)) && (mdir)))
 832                                         {
 833                                                 if (!ModeIsListMode(modechar,MT_CHANNEL))
 834                                                 {
 835                                                         log(DEBUG,"Mode %c isnt set on %s but trying to remove!",modechar,chan->name);
 836                                                         break;
 837                                                 }
 838                                         }
 839                                         if (ModeDefined(modechar,MT_CHANNEL))
 840                                         {
 841                                                 log(DEBUG,"A module has claimed this mode");
 842                                                 if (param<pcnt)
 843                                                 {
 844                                                         if ((ModeDefinedOn(modechar,MT_CHANNEL)>0) && (mdir))
 845                                                         {
 846                                                                 p.push_back(parameters[param]);
 847                                                         }
 848                                                         if ((ModeDefinedOff(modechar,MT_CHANNEL)>0) && (!mdir))
 849                                                         {
 850                                                                 p.push_back(parameters[param]);
 851                                                         }
 852                                                 }
 853                                                 bool handled = false;
 854                                                 if (param>=pcnt)
 855                                                 {
 856                                                         // we're supposed to have a parameter, but none was given... so dont handle the mode.
 857                                                         if (((ModeDefinedOn(modechar,MT_CHANNEL)>0) && (mdir)) || ((ModeDefinedOff(modechar,MT_CHANNEL)>0) && (!mdir)))
 858                                                         {
 859                                                                 log(DEBUG,"Not enough parameters for module-mode %c",modechar);
 860                                                                 handled = true;
 861                                                                 param++;
 862                                                         }
 863                                                 }
 864                                                 for (int i = 0; i <= MODCOUNT; i++)
 865                                                 {
 866                                                         if (!handled)
 867                                                         {
 868                                                                 int t = modules[i]->OnExtendedMode(user,chan,modechar,MT_CHANNEL,mdir,p);
 869                                                                 if (t != 0)
 870                                                                 {
 871                                                                         log(DEBUG,"OnExtendedMode returned nonzero for a module");
 872                                                                         char app[] = {modechar, 0};
 873                                                                         if (ModeIsListMode(modechar,MT_CHANNEL))
 874                                                                         {
 875                                                                                 if (t == -1)
 876                                                                                 {
 877                                                                                         pc++;
 878                                                                                 }
 879                                                                                 else
 880                                                                                 {
 881                                                                                         if (ptr>0)
 882                                                                                         {
 883                                                                                                 strlcat(outlist, app,MAXBUF);
 884                                                                                         }
 885                                                                                         strlcpy(outpars[pc++],parameters[param++],MAXBUF);
 886                                                                                 }
 887                                                                         }
 888                                                                         else
 889                                                                         {
 890                                                                                 if (ptr>0)
 891                                                                                 {
 892                                                                                         if ((modelist[ptr-1] == '+') || (modelist[ptr-1] == '-'))
 893                                                                                         {
 894                                                                                                 strlcat(outlist, app,MAXBUF);
 895                                                                                         }
 896                                                                                         else if (!strchr(outlist,modechar))
 897                                                                                         {
 898                                                                                                 strlcat(outlist, app,MAXBUF);
 899                                                                                         }
 900                                                                                 }
 901                                                                                 chan->SetCustomMode(modechar,mdir);
 902                                                                                 // include parameters in output if mode has them
 903                                                                                 if ((ModeDefinedOn(modechar,MT_CHANNEL)>0) && (mdir))
 904                                                                                 {
 905                                                                                         chan->SetCustomModeParam(modelist[ptr],parameters[param],mdir);
 906                                                                                         strlcpy(outpars[pc++],parameters[param++],MAXBUF);
 907                                                                                 }
 908                                                                         }
 909                                                                         // break, because only one module can handle the mode.
 910                                                                         handled = true;
 911                                                                 }
 912                                                         }
 913                                                 }
 914                                         }
 915                                         else
 916                                         {
 917                                                 WriteServ(user->fd,"472 %s %c :is unknown mode char to me",user->nick,modechar);
 918                                         }
 919                                 break;
 920
 921                         }
 922                 }
 923         }
 924
 925         /* this ensures only the *valid* modes are sent out onto the network */
 926         while ((outlist[strlen(outlist)-1] == '-') || (outlist[strlen(outlist)-1] == '+'))
 927         {
 928                 outlist[strlen(outlist)-1] = '\0';
 929         }
 930         if (strcmp(outlist,""))
 931         {
 932                 strlcpy(outstr,outlist,MAXBUF);
 933                 for (ptr = 0; ptr < pc; ptr++)
 934                 {
 935                         strlcat(outstr," ",MAXBUF);
 936                         strlcat(outstr,outpars[ptr],MAXBUF);
 937                 }
 938                 if (local)
 939                 {
 940                         log(DEBUG,"Local mode change");
 941                         WriteChannelLocal(chan, user, "MODE %s %s",chan->name,outstr);
 942                 }
 943                 else
 944                 {
 945                         if (servermode)
 946                         {
 947                                 if (!silent)
 948                                 {
 949                                         WriteChannelWithServ(ServerName,chan,user,"MODE %s %s",chan->name,outstr);
 950                                         // M token for a usermode must go to all servers
 951                                         char buffer[MAXBUF];
 952                                         snprintf(buffer,MAXBUF,"M %s %s",chan->name, outstr);
 953                                         NetSendToAll(buffer);
 954                                 }
 955
 956                         }
 957                         else
 958                         {
 959                                 if (!silent)
 960                                 {
 961                                         WriteChannel(chan,user,"MODE %s %s",chan->name,outstr);
 962                                         // M token for a usermode must go to all servers
 963                                         char buffer[MAXBUF];
 964                                         snprintf(buffer,MAXBUF,"m %s %s %s",user->nick,chan->name, outstr);
 965                                         NetSendToAll(buffer);
 966                                 }
 967                         }
 968                 }
 969         }
 970 }
 971
 972 // based on sourcemodes, return true or false to determine if umode is a valid mode a user may set on themselves or others.
 973
 974 bool allowed_umode(char umode, char* sourcemodes,bool adding)
 975 {
 976         log(DEBUG,"Allowed_umode: %c %s",umode,sourcemodes);
 977         // RFC1459 specified modes
 978         if ((umode == 'w') || (umode == 's') || (umode == 'i'))
 979         {
 980                 log(DEBUG,"umode %c allowed by RFC1459 scemantics",umode);
 981                 return true;
 982         }
 983
 984         // user may not +o themselves or others, but an oper may de-oper other opers or themselves
 985         if ((strchr(sourcemodes,'o')) && (!adding))
 986         {
 987                 log(DEBUG,"umode %c allowed by RFC1459 scemantics",umode);
 988                 return true;
 989         }
 990         else if (umode == 'o')
 991         {
 992                 log(DEBUG,"umode %c allowed by RFC1459 scemantics",umode);
 993                 return false;
 994         }
 995
 996         // process any module-defined modes that need oper
 997         if ((ModeDefinedOper(umode,MT_CLIENT)) && (strchr(sourcemodes,'o')))
 998         {
 999                 log(DEBUG,"umode %c allowed by module handler (oper only mode)",umode);
1000                 return true;
1001         }
1002         else
1003         if (ModeDefined(umode,MT_CLIENT))
1004         {
1005                 // process any module-defined modes that don't need oper
1006                 log(DEBUG,"umode %c allowed by module handler (non-oper mode)",umode);
1007                 if ((ModeDefinedOper(umode,MT_CLIENT)) && (!strchr(sourcemodes,'o')))
1008                 {
1009                         // no, this mode needs oper, and this user 'aint got what it takes!
1010                         return false;
1011                 }
1012                 return true;
1013         }
1014
1015         // anything else - return false.
1016         log(DEBUG,"umode %c not known by any ruleset",umode);
1017         return false;
1018 }
1019
1020 bool process_module_umode(char umode, userrec* source, void* dest, bool adding)
1021 {
1022         userrec* s2;
1023         bool faked = false;
1024         if (!source)
1025         {
1026                 s2 = new userrec;
1027                 strlcpy(s2->nick,ServerName,NICKMAX);
1028                 strcpy(s2->modes,"o");
1029                 s2->fd = -1;
1030                 source = s2;
1031                 faked = true;
1032         }
1033         string_list p;
1034         p.clear();
1035         if (ModeDefined(umode,MT_CLIENT))
1036         {
1037                 for (int i = 0; i <= MODCOUNT; i++)
1038                 {
1039                         if (modules[i]->OnExtendedMode(source,(void*)dest,umode,MT_CLIENT,adding,p))
1040                         {
1041                                 log(DEBUG,"Module %s claims umode %c",module_names[i].c_str(),umode);
1042                                 return true;
1043                         }
1044                 }
1045                 log(DEBUG,"No module claims umode %c",umode);
1046                 if (faked)
1047                 {
1048                         delete s2;
1049                         source = NULL;
1050                 }
1051                 return false;
1052         }
1053         else
1054         {
1055                 if (faked)
1056                 {
1057                         delete s2;
1058                         source = NULL;
1059                 }
1060                 return false;
1061         }
1062 }
1063
1064 void handle_mode(char **parameters, int pcnt, userrec *user)
1065 {
1066         chanrec* Ptr;
1067         userrec* dest;
1068         int can_change,i;
1069         int direction = 1;
1070         char outpars[MAXBUF];
1071
1072         dest = Find(parameters[0]);
1073
1074         if (!user)
1075         {
1076                 return;
1077         }
1078
1079         if ((dest) && (pcnt == 1))
1080         {
1081                 WriteServ(user->fd,"221 %s :+%s",dest->nick,dest->modes);
1082                 return;
1083         }
1084
1085         if ((dest) && (pcnt > 1))
1086         {
1087                 char dmodes[MAXBUF];
1088                 strlcpy(dmodes,dest->modes,MAXBUF);
1089                 log(DEBUG,"pulled up dest user modes: %s",dmodes);
1090
1091                 can_change = 0;
1092                 if (user != dest)
1093                 {
1094                         if (strchr(user->modes,'o'))
1095                         {
1096                                 can_change = 1;
1097                         }
1098                 }
1099                 else
1100                 {
1101                         can_change = 1;
1102                 }
1103                 if (!can_change)
1104                 {
1105                         WriteServ(user->fd,"482 %s :Can't change mode for other users",user->nick);
1106                         return;
1107                 }
1108
1109                 strcpy(outpars,"+");
1110                 direction = 1;
1111
1112                 if ((parameters[1][0] != '+') && (parameters[1][0] != '-'))
1113                         return;
1114
1115                 for (int i = 0; i < strlen(parameters[1]); i++)
1116                 {
1117                         if (parameters[1][i] == '+')
1118                         {
1119                                 if (direction != 1)
1120                                 {
1121                                         if ((outpars[strlen(outpars)-1] == '+') || (outpars[strlen(outpars)-1] == '-'))
1122                                         {
1123                                                 outpars[strlen(outpars)-1] = '+';
1124                                         }
1125                                         else
1126                                         {
1127                                                 strcat(outpars,"+");
1128                                         }
1129                                 }
1130                                 direction = 1;
1131                         }
1132                         else
1133                         if (parameters[1][i] == '-')
1134                         {
1135                                 if (direction != 0)
1136                                 {
1137                                         if ((outpars[strlen(outpars)-1] == '+') || (outpars[strlen(outpars)-1] == '-'))
1138                                         {
1139                                                 outpars[strlen(outpars)-1] = '-';
1140                                         }
1141                                         else
1142                                         {
1143                                                 strcat(outpars,"-");
1144                                         }
1145                                 }
1146                                 direction = 0;
1147                         }
1148                         else
1149                         {
1150                                 can_change = 0;
1151                                 if (strchr(user->modes,'o'))
1152                                 {
1153                                         can_change = 1;
1154                                 }
1155                                 else
1156                                 {
1157                                         if ((parameters[1][i] == 'i') || (parameters[1][i] == 'w') || (parameters[1][i] == 's') || (allowed_umode(parameters[1][i],user->modes,direction)))
1158                                         {
1159                                                 can_change = 1;
1160                                         }
1161                                 }
1162                                 if (can_change)
1163                                 {
1164                                         if (direction == 1)
1165                                         {
1166                                                 if ((!strchr(dmodes,parameters[1][i])) && (allowed_umode(parameters[1][i],user->modes,true)))
1167                                                 {
1168                                                         char umode = parameters[1][i];
1169                                                         if ((process_module_umode(umode, user, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
1170                                                         {
1171                                                                 dmodes[strlen(dmodes)+1]='\0';
1172                                                                 dmodes[strlen(dmodes)] = parameters[1][i];
1173                                                                 outpars[strlen(outpars)+1]='\0';
1174                                                                 outpars[strlen(outpars)] = parameters[1][i];
1175                                                         }
1176                                                 }
1177                                         }
1178                                         else
1179                                         {
1180                                                 if ((allowed_umode(parameters[1][i],user->modes,false)) && (strchr(dmodes,parameters[1][i])))
1181                                                 {
1182                                                         char umode = parameters[1][i];
1183                                                         if ((process_module_umode(umode, user, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
1184                                                         {
1185                                                                 int q = 0;
1186                                                                 char temp[MAXBUF];
1187                                                                 char moo[MAXBUF];
1188
1189                                                                 outpars[strlen(outpars)+1]='\0';
1190                                                                 outpars[strlen(outpars)] = parameters[1][i];
1191
1192                                                                 strcpy(temp,"");
1193                                                                 for (q = 0; q < strlen(dmodes); q++)
1194                                                                 {
1195                                                                         if (dmodes[q] != parameters[1][i])
1196                                                                         {
1197                                                                                 moo[0] = dmodes[q];
1198                                                                                 moo[1] = '\0';
1199                                                                                 strlcat(temp,moo,MAXBUF);
1200                                                                         }
1201                                                                 }
1202                                                                 strlcpy(dmodes,temp,MAXBUF);
1203                                                         }
1204                                                 }
1205                                         }
1206                                 }
1207                         }
1208                 }
1209                 if (strlen(outpars))
1210                 {
1211                         char b[MAXBUF];
1212                         strlcpy(b,"",MAXBUF);
1213                         int z = 0;
1214                         int i = 0;
1215                         while (i < strlen (outpars))
1216                         {
1217                                 b[z++] = outpars[i++];
1218                                 b[z] = '\0';
1219                                 if (i<strlen(outpars)-1)
1220                                 {
1221                                         if (((outpars[i] == '-') || (outpars[i] == '+')) && ((outpars[i+1] == '-') || (outpars[i+1] == '+')))
1222                                         {
1223                                                 // someones playing silly buggers and trying
1224                                                 // to put a +- or -+ into the line...
1225                                                 i++;
1226                                         }
1227                                 }
1228                                 if (i == strlen(outpars)-1)
1229                                 {
1230                                         if ((outpars[i] == '-') || (outpars[i] == '+'))
1231                                         {
1232                                                 i++;
1233                                         }
1234                                 }
1235                         }
1236
1237                         z = strlen(b)-1;
1238                         if ((b[z] == '-') || (b[z] == '+'))
1239                                 b[z] == '\0';
1240
1241                         if ((!strcmp(b,"+")) || (!strcmp(b,"-")))
1242                                 return;
1243
1244                         WriteTo(user, dest, "MODE %s :%s", dest->nick, b);
1245
1246                         // M token for a usermode must go to all servers
1247                         char buffer[MAXBUF];
1248                         snprintf(buffer,MAXBUF,"m %s %s %s",user->nick, dest->nick, b);
1249                         NetSendToAll(buffer);
1250
1251                         if (strlen(dmodes)>MAXMODES)
1252                         {
1253                                 dmodes[MAXMODES-1] = '\0';
1254                         }
1255                         log(DEBUG,"Stripped mode line");
1256                         log(DEBUG,"Line dest is now %s",dmodes);
1257                         strlcpy(dest->modes,dmodes,MAXMODES);
1258
1259                 }
1260
1261                 return;
1262         }
1263
1264         Ptr = FindChan(parameters[0]);
1265         if (Ptr)
1266         {
1267                 if (pcnt == 1)
1268                 {
1269                         /* just /modes #channel */
1270                         WriteServ(user->fd,"324 %s %s +%s",user->nick, Ptr->name, chanmodes(Ptr));
1271                         return;
1272                 }
1273                 else
1274                 if (pcnt == 2)
1275                 {
1276                         if ((!strcmp(parameters[1],"+b")) || (!strcmp(parameters[1],"b")))
1277                         {
1278
1279                                 for (BanList::iterator i = Ptr->bans.begin(); i != Ptr->bans.end(); i++)
1280                                 {
1281                                         WriteServ(user->fd,"367 %s %s %s %s %d",user->nick, Ptr->name, i->data, i->set_by, i->set_time);
1282                                 }
1283                                 WriteServ(user->fd,"368 %s %s :End of channel ban list",user->nick, Ptr->name);
1284                                 return;
1285                         }
1286                 }
1287
1288                 if ((Ptr) && (!has_channel(user,Ptr)))
1289                 {
1290                         WriteServ(user->fd,"442 %s %s :You're not on that channel!",user->nick, Ptr->name);
1291                         return;
1292                 }
1293
1294                 if (Ptr)
1295                 {
1296                         int MOD_RESULT = 0;
1297                         FOREACH_RESULT(OnAccessCheck(user,NULL,Ptr,AC_GENERAL_MODE));
1298
1299                         if (MOD_RESULT == ACR_DENY)
1300                                 return;
1301                         if (MOD_RESULT == ACR_DEFAULT)
1302                         {
1303                                 if (cstatus(user,Ptr) < STATUS_HOP)
1304                                 {
1305                                         WriteServ(user->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel",user->nick, Ptr->name);
1306                                         return;
1307                                 }
1308                         }
1309
1310                         process_modes(parameters,user,Ptr,cstatus(user,Ptr),pcnt,false,false,false);
1311                 }
1312         }
1313         else
1314         {
1315                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
1316         }
1317 }
1318
1319
1320
1321
1322 void server_mode(char **parameters, int pcnt, userrec *user)
1323 {
1324         chanrec* Ptr;
1325         userrec* dest;
1326         int can_change,i;
1327         int direction = 1;
1328         char outpars[MAXBUF];
1329
1330         dest = Find(parameters[0]);
1331
1332         // fix: ChroNiCk found this - we cant use this as debug if its null!
1333         if (dest)
1334         {
1335                 log(DEBUG,"server_mode on %s",dest->nick);
1336         }
1337
1338         if ((dest) && (pcnt > 1))
1339         {
1340                 log(DEBUG,"params > 1");
1341
1342                 char dmodes[MAXBUF];
1343                 strlcpy(dmodes,dest->modes,MAXBUF);
1344
1345                 strcpy(outpars,"+");
1346                 direction = 1;
1347
1348                 if ((parameters[1][0] != '+') && (parameters[1][0] != '-'))
1349                         return;
1350
1351                 for (int i = 0; i < strlen(parameters[1]); i++)
1352                 {
1353                         if (parameters[1][i] == '+')
1354                         {
1355                                 if (direction != 1)
1356                                 {
1357                                         if ((outpars[strlen(outpars)-1] == '+') || (outpars[strlen(outpars)-1] == '-'))
1358                                         {
1359                                                 outpars[strlen(outpars)-1] = '+';
1360                                         }
1361                                         else
1362                                         {
1363                                                 strcat(outpars,"+");
1364                                         }
1365                                 }
1366                                 direction = 1;
1367                         }
1368                         else
1369                         if (parameters[1][i] == '-')
1370                         {
1371                                 if (direction != 0)
1372                                 {
1373                                         if ((outpars[strlen(outpars)-1] == '+') || (outpars[strlen(outpars)-1] == '-'))
1374                                         {
1375                                                 outpars[strlen(outpars)-1] = '-';
1376                                         }
1377                                         else
1378                                         {
1379                                                 strcat(outpars,"-");
1380                                         }
1381                                 }
1382                                 direction = 0;
1383                         }
1384                         else
1385                         {
1386                                 log(DEBUG,"begin mode processing entry");
1387                                 can_change = 1;
1388                                 if (can_change)
1389                                 {
1390                                         if (direction == 1)
1391                                         {
1392                                                 log(DEBUG,"umode %c being added",parameters[1][i]);
1393                                                 if ((!strchr(dmodes,parameters[1][i])) && (allowed_umode(parameters[1][i],user->modes,true)))
1394                                                 {
1395                                                         char umode = parameters[1][i];
1396                                                         log(DEBUG,"umode %c is an allowed umode",umode);
1397                                                         if ((process_module_umode(umode, user, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
1398                                                         {
1399                                                                 dmodes[strlen(dmodes)+1]='\0';
1400                                                                 dmodes[strlen(dmodes)] = parameters[1][i];
1401                                                                 outpars[strlen(outpars)+1]='\0';
1402                                                                 outpars[strlen(outpars)] = parameters[1][i];
1403                                                         }
1404                                                 }
1405                                         }
1406                                         else
1407                                         {
1408                                                 // can only remove a mode they already have
1409                                                 log(DEBUG,"umode %c being removed",parameters[1][i]);
1410                                                 if ((allowed_umode(parameters[1][i],user->modes,false)) && (strchr(dmodes,parameters[1][i])))
1411                                                 {
1412                                                         char umode = parameters[1][i];
1413                                                         log(DEBUG,"umode %c is an allowed umode",umode);
1414                                                         if ((process_module_umode(umode, user, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
1415                                                         {
1416                                                                 int q = 0;
1417                                                                 char temp[MAXBUF];
1418                                                                 char moo[MAXBUF];
1419
1420                                                                 outpars[strlen(outpars)+1]='\0';
1421                                                                 outpars[strlen(outpars)] = parameters[1][i];
1422
1423                                                                 strcpy(temp,"");
1424                                                                 for (q = 0; q < strlen(dmodes); q++)
1425                                                                 {
1426                                                                         if (dmodes[q] != parameters[1][i])
1427                                                                         {
1428                                                                                 moo[0] = dmodes[q];
1429                                                                                 moo[1] = '\0';
1430                                                                                 strlcat(temp,moo,MAXBUF);
1431                                                                         }
1432                                                                 }
1433                                                                 strlcpy(dmodes,temp,MAXBUF);
1434                                                         }
1435                                                 }
1436                                         }
1437                                 }
1438                         }
1439                 }
1440                 if (strlen(outpars))
1441                 {
1442                         char b[MAXBUF];
1443                         strlcpy(b,"",MAXBUF);
1444                         int z = 0;
1445                         int i = 0;
1446                         while (i < strlen (outpars))
1447                         {
1448                                 b[z++] = outpars[i++];
1449                                 b[z] = '\0';
1450                                 if (i<strlen(outpars)-1)
1451                                 {
1452                                         if (((outpars[i] == '-') || (outpars[i] == '+')) && ((outpars[i+1] == '-') || (outpars[i+1] == '+')))
1453                                         {
1454                                                 // someones playing silly buggers and trying
1455                                                 // to put a +- or -+ into the line...
1456                                                 i++;
1457                                         }
1458                                 }
1459                                 if (i == strlen(outpars)-1)
1460                                 {
1461                                         if ((outpars[i] == '-') || (outpars[i] == '+'))
1462                                         {
1463                                                 i++;
1464                                         }
1465                                 }
1466                         }
1467
1468                         z = strlen(b)-1;
1469                         if ((b[z] == '-') || (b[z] == '+'))
1470                                 b[z] == '\0';
1471
1472                         if ((!strcmp(b,"+")) || (!strcmp(b,"-")))
1473                                 return;
1474
1475                         WriteTo(user, dest, "MODE %s :%s", dest->nick, b);
1476
1477                         // M token for a usermode must go to all servers
1478                         char buffer[MAXBUF];
1479                         snprintf(buffer,MAXBUF,"m %s %s %s",user->nick, dest->nick, b);
1480                         NetSendToAll(buffer);
1481
1482                         if (strlen(dmodes)>MAXMODES)
1483                         {
1484                                 dmodes[MAXMODES-1] = '\0';
1485                         }
1486                         log(DEBUG,"Stripped mode line");
1487                         log(DEBUG,"Line dest is now %s",dmodes);
1488                         strlcpy(dest->modes,dmodes,MAXMODES);
1489
1490                 }
1491
1492                 return;
1493         }
1494
1495         Ptr = FindChan(parameters[0]);
1496         if (Ptr)
1497         {
1498                 process_modes(parameters,user,Ptr,STATUS_OP,pcnt,true,false,false);
1499         }
1500         else
1501         {
1502                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
1503         }
1504 }
1505
1506
1507
1508 void merge_mode(char **parameters, int pcnt)
1509 {
1510         chanrec* Ptr;
1511         userrec* dest;
1512         int can_change,i;
1513         int direction = 1;
1514         char outpars[MAXBUF];
1515
1516         dest = Find(parameters[0]);
1517
1518         // fix: ChroNiCk found this - we cant use this as debug if its null!
1519         if (dest)
1520         {
1521                 log(DEBUG,"merge_mode on %s",dest->nick);
1522         }
1523
1524         if ((dest) && (pcnt > 1))
1525         {
1526                 log(DEBUG,"params > 1");
1527
1528                 char dmodes[MAXBUF];
1529                 strlcpy(dmodes,dest->modes,MAXBUF);
1530
1531                 strcpy(outpars,"+");
1532                 direction = 1;
1533
1534                 if ((parameters[1][0] != '+') && (parameters[1][0] != '-'))
1535                         return;
1536
1537                 for (int i = 0; i < strlen(parameters[1]); i++)
1538                 {
1539                         if (parameters[1][i] == '+')
1540                         {
1541                                 if (direction != 1)
1542                                 {
1543                                         if ((outpars[strlen(outpars)-1] == '+') || (outpars[strlen(outpars)-1] == '-'))
1544                                         {
1545                                                 outpars[strlen(outpars)-1] = '+';
1546                                         }
1547                                         else
1548                                         {
1549                                                 strcat(outpars,"+");
1550                                         }
1551                                 }
1552                                 direction = 1;
1553                         }
1554                         else
1555                         if (parameters[1][i] == '-')
1556                         {
1557                                 if (direction != 0)
1558                                 {
1559                                         if ((outpars[strlen(outpars)-1] == '+') || (outpars[strlen(outpars)-1] == '-'))
1560                                         {
1561                                                 outpars[strlen(outpars)-1] = '-';
1562                                         }
1563                                         else
1564                                         {
1565                                                 strcat(outpars,"-");
1566                                         }
1567                                 }
1568                                 direction = 0;
1569                         }
1570                         else
1571                         {
1572                                 log(DEBUG,"begin mode processing entry");
1573                                 can_change = 1;
1574                                 if (can_change)
1575                                 {
1576                                         if (direction == 1)
1577                                         {
1578                                                 log(DEBUG,"umode %c being added",parameters[1][i]);
1579                                                 if ((!strchr(dmodes,parameters[1][i])) && (allowed_umode(parameters[1][i],"o",true)))
1580                                                 {
1581                                                         char umode = parameters[1][i];
1582                                                         log(DEBUG,"umode %c is an allowed umode",umode);
1583                                                         if ((process_module_umode(umode, NULL, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
1584                                                         {
1585                                                                 dmodes[strlen(dmodes)+1]='\0';
1586                                                                 dmodes[strlen(dmodes)] = parameters[1][i];
1587                                                                 outpars[strlen(outpars)+1]='\0';
1588                                                                 outpars[strlen(outpars)] = parameters[1][i];
1589                                                         }
1590                                                 }
1591                                         }
1592                                         else
1593                                         {
1594                                                 // can only remove a mode they already have
1595                                                 log(DEBUG,"umode %c being removed",parameters[1][i]);
1596                                                 if ((allowed_umode(parameters[1][i],"o",false)) && (strchr(dmodes,parameters[1][i])))
1597                                                 {
1598                                                         char umode = parameters[1][i];
1599                                                         log(DEBUG,"umode %c is an allowed umode",umode);
1600                                                         if ((process_module_umode(umode, NULL, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
1601                                                         {
1602                                                                 int q = 0;
1603                                                                 char temp[MAXBUF];
1604                                                                 char moo[MAXBUF];
1605
1606                                                                 outpars[strlen(outpars)+1]='\0';
1607                                                                 outpars[strlen(outpars)] = parameters[1][i];
1608
1609                                                                 strcpy(temp,"");
1610                                                                 for (q = 0; q < strlen(dmodes); q++)
1611                                                                 {
1612                                                                         if (dmodes[q] != parameters[1][i])
1613                                                                         {
1614                                                                                 moo[0] = dmodes[q];
1615                                                                                 moo[1] = '\0';
1616                                                                                 strlcat(temp,moo,MAXBUF);
1617                                                                         }
1618                                                                 }
1619                                                                 strlcpy(dmodes,temp,MAXBUF);
1620                                                         }
1621                                                 }
1622                                         }
1623                                 }
1624                         }
1625                 }
1626                 if (strlen(outpars))
1627                 {
1628                         char b[MAXBUF];
1629                         strcpy(b,"");
1630                         int z = 0;
1631                         int i = 0;
1632                         while (i < strlen (outpars))
1633                         {
1634                                 b[z++] = outpars[i++];
1635                                 b[z] = '\0';
1636                                 if (i<strlen(outpars)-1)
1637                                 {
1638                                         if (((outpars[i] == '-') || (outpars[i] == '+')) && ((outpars[i+1] == '-') || (outpars[i+1] == '+')))
1639                                         {
1640                                                 // someones playing silly buggers and trying
1641                                                 // to put a +- or -+ into the line...
1642                                                 i++;
1643                                         }
1644                                 }
1645                                 if (i == strlen(outpars)-1)
1646                                 {
1647                                         if ((outpars[i] == '-') || (outpars[i] == '+'))
1648                                         {
1649                                                 i++;
1650                                         }
1651                                 }
1652                         }
1653
1654                         z = strlen(b)-1;
1655                         if ((b[z] == '-') || (b[z] == '+'))
1656                                 b[z] == '\0';
1657
1658                         if ((!strcmp(b,"+")) || (!strcmp(b,"-")))
1659                                 return;
1660
1661                         if (strlen(dmodes)>MAXMODES)
1662                         {
1663                                 dmodes[MAXMODES-1] = '\0';
1664                         }
1665                         log(DEBUG,"Stripped mode line");
1666                         log(DEBUG,"Line dest is now %s",dmodes);
1667                         strlcpy(dest->modes,dmodes,MAXMODES);
1668
1669                 }
1670
1671                 return;
1672         }
1673
1674         Ptr = FindChan(parameters[0]);
1675         if (Ptr)
1676         {
1677                 userrec s2;
1678                 strlcpy(s2.nick,ServerName,NICKMAX);
1679                 strcpy(s2.modes,"o");
1680                 s2.fd = -1;
1681                 process_modes(parameters,&s2,Ptr,STATUS_OP,pcnt,true,true,false);
1682         }
1683 }
1684
1685
1686 void merge_mode2(char **parameters, int pcnt, userrec* user)
1687 {
1688         chanrec* Ptr;
1689         userrec* dest;
1690         int can_change,i;
1691         int direction = 1;
1692         char outpars[MAXBUF];
1693
1694         dest = Find(parameters[0]);
1695
1696         // fix: ChroNiCk found this - we cant use this as debug if its null!
1697         if (dest)
1698         {
1699                 log(DEBUG,"merge_mode on %s",dest->nick);
1700         }
1701
1702         if ((dest) && (pcnt > 1))
1703         {
1704                 log(DEBUG,"params > 1");
1705
1706                 char dmodes[MAXBUF];
1707                 strlcpy(dmodes,dest->modes,MAXBUF);
1708
1709                 strcpy(outpars,"+");
1710                 direction = 1;
1711
1712                 if ((parameters[1][0] == ':') && (strlen(parameters[1])>1))
1713                 {
1714                         // some stupid 3rd party things (such as services packages) put a colon on the mode list...
1715                         log(DEBUG,"Some muppet put a colon on the modelist! changed to '%s'",++parameters[1]);
1716                 }
1717                 if ((parameters[1][0] != '+') && (parameters[1][0] != '-'))
1718                 return;
1719
1720                 for (int i = 0; i < strlen(parameters[1]); i++)
1721                 {
1722                         if (parameters[1][i] == '+')
1723                         {
1724                                 if (direction != 1)
1725                                 {
1726                                         if ((outpars[strlen(outpars)-1] == '+') || (outpars[strlen(outpars)-1] == '-'))
1727                                         {
1728                                                 outpars[strlen(outpars)-1] = '+';
1729                                         }
1730                                         else
1731                                         {
1732                                                 strcat(outpars,"+");
1733                                         }
1734                                 }
1735                                 direction = 1;
1736                         }
1737                         else
1738                         if (parameters[1][i] == '-')
1739                         {
1740                                 if (direction != 0)
1741                                 {
1742                                         if ((outpars[strlen(outpars)-1] == '+') || (outpars[strlen(outpars)-1] == '-'))
1743                                         {
1744                                                 outpars[strlen(outpars)-1] = '-';
1745                                         }
1746                                         else
1747                                         {
1748                                                 strcat(outpars,"-");
1749                                         }
1750                                 }
1751                                 direction = 0;
1752                         }
1753                         else
1754                         {
1755                                 log(DEBUG,"begin mode processing entry");
1756                                 can_change = 1;
1757                                 if (can_change)
1758                                 {
1759                                         if (direction == 1)
1760                                         {
1761                                                 log(DEBUG,"umode %c being added",parameters[1][i]);
1762                                                 if ((!strchr(dmodes,parameters[1][i])) && (allowed_umode(parameters[1][i],user->modes,true)))
1763                                                 {
1764                                                         char umode = parameters[1][i];
1765                                                         log(DEBUG,"umode %c is an allowed umode",umode);
1766                                                         if ((process_module_umode(umode, NULL, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
1767                                                         {
1768                                                                 dmodes[strlen(dmodes)+1]='\0';
1769                                                                 dmodes[strlen(dmodes)] = parameters[1][i];
1770                                                                 outpars[strlen(outpars)+1]='\0';
1771                                                                 outpars[strlen(outpars)] = parameters[1][i];
1772                                                                 log(DEBUG,"OUTPARS='%s', DMODES='%s'",outpars,dmodes);
1773                                                         }
1774                                                 }
1775                                         }
1776                                         else
1777                                         {
1778                                                 // can only remove a mode they already have
1779                                                 log(DEBUG,"umode %c being removed",parameters[1][i]);
1780                                                 if ((allowed_umode(parameters[1][i],user->modes,false)) && (strchr(dmodes,parameters[1][i])))
1781                                                 {
1782                                                         char umode = parameters[1][i];
1783                                                         log(DEBUG,"umode %c is an allowed umode",umode);
1784                                                         if ((process_module_umode(umode, NULL, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
1785                                                         {
1786                                                                 int q = 0;
1787                                                                 char temp[MAXBUF];
1788                                                                 char moo[MAXBUF];
1789
1790                                                                 outpars[strlen(outpars)+1]='\0';
1791                                                                 outpars[strlen(outpars)] = parameters[1][i];
1792
1793                                                                 strcpy(temp,"");
1794                                                                 for (q = 0; q < strlen(dmodes); q++)
1795                                                                 {
1796                                                                         if (dmodes[q] != parameters[1][i])
1797                                                                         {
1798                                                                                 moo[0] = dmodes[q];
1799                                                                                 moo[1] = '\0';
1800                                                                                 strlcat(temp,moo,MAXBUF);
1801                                                                         }
1802                                                                 }
1803                                                                 strlcpy(dmodes,temp,MAXBUF);
1804                                                         }
1805                                                 }
1806                                         }
1807                                 }
1808                         }
1809                 }
1810                 log(DEBUG,"DONE! OUTPARS='%s', DMODES='%s'",outpars,dmodes);
1811                 if (strlen(outpars))
1812                 {
1813                         char b[MAXBUF];
1814                         strcpy(b,"");
1815                         int z = 0;
1816                         int i = 0;
1817                         while (i < strlen (outpars))
1818                         {
1819                                 b[z++] = outpars[i++];
1820                                 b[z] = '\0';
1821                                 if (i<strlen(outpars)-1)
1822                                 {
1823                                         if (((outpars[i] == '-') || (outpars[i] == '+')) && ((outpars[i+1] == '-') || (outpars[i+1] == '+')))
1824                                         {
1825                                                 // someones playing silly buggers and trying
1826                                                 // to put a +- or -+ into the line...
1827                                                 i++;
1828                                         }
1829                                 }
1830                                 if (i == strlen(outpars)-1)
1831                                 {
1832                                         if ((outpars[i] == '-') || (outpars[i] == '+'))
1833                                         {
1834                                                 i++;
1835                                         }
1836                                 }
1837                         }
1838
1839                         z = strlen(b)-1;
1840                         if ((b[z] == '-') || (b[z] == '+'))
1841                                 b[z] == '\0';
1842
1843                         if ((!strcmp(b,"+")) || (!strcmp(b,"-")))
1844                                 return;
1845
1846                         // was sending 'b'
1847                         WriteTo(user,dest,"MODE %s :%s",dest->nick,b);
1848                         log(DEBUG,"Sent: :%s MODE %s",user->nick,b);
1849
1850                         if (strlen(dmodes)>MAXMODES)
1851                         {
1852                                 dmodes[MAXMODES-1] = '\0';
1853                         }
1854                         log(DEBUG,"Stripped mode line");
1855                         log(DEBUG,"Line dest is now %s",dmodes);
1856                         strlcpy(dest->modes,dmodes,MAXMODES);
1857
1858                 }
1859
1860                 return;
1861         }
1862
1863         Ptr = FindChan(parameters[0]);
1864         if (Ptr)
1865         {
1866                 log(DEBUG,"merge_mode2: found channel %s",Ptr->name);
1867                 if (Ptr)
1868                 {
1869                         if ((cstatus(user,Ptr) < STATUS_HOP) && (!is_uline(user->server)))
1870                         {
1871                                 return;
1872                         }
1873                         process_modes(parameters,user,Ptr,cstatus(user,Ptr),pcnt,false,false,true);
1874                 }
1875         }
1876 }
1877
1878