src/mode.cpp

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