src/mode.cpp

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