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