src/ngircd/irc-mode.c

   1 /*
   2  * ngIRCd -- The Next Generation IRC Daemon
   3  * Copyright (c)2001-2005 Alexander Barton (alex@barton.de)
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  * Please read the file COPYING, README and AUTHORS for more information.
  10  *
  11  * IRC commands for mode changes (MODE, AWAY, ...)
  12  */
  13
  14
  15 #include "portab.h"
  16
  17 static char UNUSED id[] = "$Id: irc-mode.c,v 1.52 2008/02/24 18:44:41 fw Exp $";
  18
  19 #include "imp.h"
  20 #include <assert.h>
  21 #include <stdio.h>
  22 #include <stdlib.h>
  23 #include <string.h>
  24
  25 #include "defines.h"
  26 #include "conn.h"
  27 #include "client.h"
  28 #include "channel.h"
  29 #include "irc-write.h"
  30 #include "lists.h"
  31 #include "log.h"
  32 #include "parse.h"
  33 #include "messages.h"
  34 #include "resolve.h"
  35 #include "conf.h"
  36
  37 #include "exp.h"
  38 #include "irc-mode.h"
  39
  40
  41 static bool Client_Mode PARAMS(( CLIENT *Client, REQUEST *Req, CLIENT *Origin, CLIENT *Target ));
  42 static bool Channel_Mode PARAMS(( CLIENT *Client, REQUEST *Req, CLIENT *Origin, CHANNEL *Channel ));
  43
  44 static bool Add_Ban_Invite PARAMS((int what, CLIENT *Prefix, CLIENT *Client, CHANNEL *Channel, char *Pattern ));
  45
  46 static bool Del_Invite PARAMS(( CLIENT *Prefix, CLIENT *Client, CHANNEL *Channel, char *Pattern ));
  47 static bool Del_Ban PARAMS(( CLIENT *Prefix, CLIENT *Client, CHANNEL *Channel, char *Pattern ));
  48
  49 static bool Send_ListChange PARAMS(( char *Mode, CLIENT *Prefix, CLIENT *Client, CHANNEL *Channel, const char *Mask ));
  50
  51
  52 GLOBAL bool
  53 IRC_MODE( CLIENT *Client, REQUEST *Req )
  54 {
  55         CLIENT *cl, *origin;
  56         CHANNEL *chan;
  57
  58         assert( Client != NULL );
  59         assert( Req != NULL );
  60
  61         /* No parameters? */
  62         if( Req->argc < 1 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
  63
  64         /* Origin for answers */
  65         if( Client_Type( Client ) == CLIENT_SERVER )
  66         {
  67                 origin = Client_Search( Req->prefix );
  68                 if( ! origin ) return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->prefix );
  69         }
  70         else origin = Client;
  71
  72         /* Channel or user mode? */
  73         cl = NULL; chan = NULL;
  74         if (Client_IsValidNick(Req->argv[0]))
  75                 cl = Client_Search(Req->argv[0]);
  76         if (Channel_IsValidName(Req->argv[0]))
  77                 chan = Channel_Search(Req->argv[0]);
  78
  79         if (cl)
  80                 return Client_Mode(Client, Req, origin, cl);
  81         if (chan)
  82                 return Channel_Mode(Client, Req, origin, chan);
  83
  84         /* No target found! */
  85         return IRC_WriteStrClient(Client, ERR_NOSUCHNICK_MSG,
  86                         Client_ID(Client), Req->argv[0]);
  87 } /* IRC_MODE */
  88
  89
  90 static bool
  91 Client_Mode( CLIENT *Client, REQUEST *Req, CLIENT *Origin, CLIENT *Target )
  92 {
  93         /* Handle client mode requests */
  94
  95         char the_modes[COMMAND_LEN], x[2], *mode_ptr;
  96         bool ok, set;
  97         int mode_arg;
  98         size_t len;
  99
 100         /* Is the client allowed to request or change the modes? */
 101         if( Client_Type( Client ) == CLIENT_USER )
 102         {
 103                 /* Users are only allowed to manipulate their own modes! */
 104                 if( Target != Client ) return IRC_WriteStrClient( Client, ERR_USERSDONTMATCH_MSG, Client_ID( Client ));
 105         }
 106
 107         /* Mode request: let's answer it :-) */
 108         if( Req->argc == 1 ) return IRC_WriteStrClient( Origin, RPL_UMODEIS_MSG, Client_ID( Origin ), Client_Modes( Target ));
 109
 110         mode_arg = 1;
 111         mode_ptr = Req->argv[mode_arg];
 112
 113         /* Initial state: set or unset modes? */
 114         if( *mode_ptr == '+' ) set = true;
 115         else if( *mode_ptr == '-' ) set = false;
 116         else return IRC_WriteStrClient( Origin, ERR_UMODEUNKNOWNFLAG_MSG, Client_ID( Origin ));
 117
 118         /* Prepare reply string */
 119         if( set ) strcpy( the_modes, "+" );
 120         else strcpy( the_modes, "-" );
 121
 122         x[1] = '\0';
 123         ok = CONNECTED;
 124         while( mode_ptr )
 125         {
 126                 mode_ptr++;
 127                 if( ! *mode_ptr )
 128                 {
 129                         /* Try next argument if there's any */
 130                         mode_arg++;
 131                         if( mode_arg < Req->argc ) mode_ptr = Req->argv[mode_arg];
 132                         else break;
 133                 }
 134
 135                 switch( *mode_ptr )
 136                 {
 137                         case '+':
 138                         case '-':
 139                                 if((( *mode_ptr == '+' ) && ( ! set )) || (( *mode_ptr == '-' ) && ( set )))
 140                                 {
 141                                         /* Action modifier ("+"/"-") must be changed ... */
 142                                         len = strlen( the_modes ) - 1;
 143                                         if(( the_modes[len] == '+' ) || ( the_modes[len] == '-' ))
 144                                         {
 145                                                 /* Adjust last action modifier in result */
 146                                                 the_modes[len] = *mode_ptr;
 147                                         }
 148                                         else
 149                                         {
 150                                                 /* Append modifier character to result string */
 151                                                 x[0] = *mode_ptr;
 152                                                 strlcat( the_modes, x, sizeof( the_modes ));
 153                                         }
 154                                         if( *mode_ptr == '+' ) set = true;
 155                                         else set = false;
 156                                 }
 157                                 continue;
 158                 }
 159
 160                 /* Validate modes */
 161                 x[0] = '\0';
 162                 switch( *mode_ptr )
 163                 {
 164                         case 'i': /* Invisible */
 165                         case 's': /* Server messages */
 166                         case 'w': /* Wallops messages */
 167                                 x[0] = *mode_ptr;
 168                                 break;
 169
 170                         case 'a': /* Away */
 171                                 if( Client_Type( Client ) == CLIENT_SERVER )
 172                                 {
 173                                         x[0] = 'a';
 174                                         Client_SetAway( Origin, DEFAULT_AWAY_MSG );
 175                                 }
 176                                 else ok = IRC_WriteStrClient( Origin, ERR_NOPRIVILEGES_MSG, Client_ID( Origin ));
 177                                 break;
 178
 179                         case 'o': /* IRC operator (only unsettable!) */
 180                                 if(( ! set ) || ( Client_Type( Client ) == CLIENT_SERVER ))
 181                                 {
 182                                         Client_SetOperByMe( Target, false );
 183                                         x[0] = 'o';
 184                                 }
 185                                 else ok = IRC_WriteStrClient( Origin, ERR_NOPRIVILEGES_MSG, Client_ID( Origin ));
 186                                 break;
 187
 188                         case 'r': /* Restricted (only settable) */
 189                                 if(( set ) || ( Client_Type( Client ) == CLIENT_SERVER )) x[0] = 'r';
 190                                 else ok = IRC_WriteStrClient( Origin, ERR_RESTRICTED_MSG, Client_ID( Origin ));
 191                                 break;
 192
 193                         default:
 194                                 Log( LOG_DEBUG, "Unknown mode \"%c%c\" from \"%s\"!?", set ? '+' : '-', *mode_ptr, Client_ID( Origin ));
 195                                 if( Client_Type( Client ) != CLIENT_SERVER ) ok = IRC_WriteStrClient( Origin, ERR_UMODEUNKNOWNFLAG2_MSG, Client_ID( Origin ), set ? '+' : '-', *mode_ptr );
 196                                 x[0] = '\0';
 197                                 goto client_exit;
 198                 }
 199                 if( ! ok ) break;
 200
 201                 /* Is there a valid mode change? */
 202                 if( ! x[0] ) continue;
 203
 204                 if( set )
 205                 {
 206                         /* Set mode */
 207                         if( Client_ModeAdd( Target, x[0] )) strlcat( the_modes, x, sizeof( the_modes ));
 208
 209                 }
 210                 else
 211                 {
 212                         /* Unset mode */
 213                         if( Client_ModeDel( Target, x[0] )) strlcat( the_modes, x, sizeof( the_modes ));
 214                 }
 215         }
 216 client_exit:
 217
 218         /* Are there changed modes? */
 219         if( the_modes[1] )
 220         {
 221                 /* Remoce needless action modifier characters */
 222                 len = strlen( the_modes ) - 1;
 223                 if(( the_modes[len] == '+' ) || ( the_modes[len] == '-' )) the_modes[len] = '\0';
 224
 225                 if( Client_Type( Client ) == CLIENT_SERVER )
 226                 {
 227                         /* Forward modes to other servers */
 228                         IRC_WriteStrServersPrefix( Client, Origin, "MODE %s :%s", Client_ID( Target ), the_modes );
 229                 }
 230                 else
 231                 {
 232                         /* Send reply to client and inform other servers */
 233                         ok = IRC_WriteStrClientPrefix( Client, Origin, "MODE %s :%s", Client_ID( Target ), the_modes );
 234                         IRC_WriteStrServersPrefix( Client, Origin, "MODE %s :%s", Client_ID( Target ), the_modes );
 235                 }
 236                 Log( LOG_DEBUG, "User \"%s\": Mode change, now \"%s\".", Client_Mask( Target ), Client_Modes( Target ));
 237         }
 238
 239         IRC_SetPenalty( Client, 1 );
 240         return ok;
 241 } /* Client_Mode */
 242
 243
 244 static bool
 245 Channel_Mode_Answer_Request(CLIENT *Origin, CHANNEL *Channel)
 246 {
 247         char the_modes[COMMAND_LEN], the_args[COMMAND_LEN], argadd[CLIENT_PASS_LEN];
 248         const char *mode_ptr;
 249
 250         /* Member or not? -- That's the question! */
 251         if (!Channel_IsMemberOf(Channel, Origin))
 252                 return IRC_WriteStrClient(Origin, RPL_CHANNELMODEIS_MSG,
 253                         Client_ID(Origin), Channel_Name(Channel), Channel_Modes(Channel));
 254
 255         /* The sender is a member: generate extended reply */
 256         strlcpy(the_modes, Channel_Modes(Channel), sizeof(the_modes));
 257         mode_ptr = the_modes;
 258         the_args[0] = '\0';
 259
 260         while(*mode_ptr) {
 261                 switch(*mode_ptr) {
 262                 case 'l':
 263                         snprintf(argadd, sizeof(argadd), " %lu", Channel_MaxUsers(Channel));
 264                         strlcat(the_args, argadd, sizeof(the_args));
 265                         break;
 266                 case 'k':
 267                         strlcat(the_args, " ", sizeof(the_args));
 268                         strlcat(the_args, Channel_Key(Channel), sizeof(the_args));
 269                         break;
 270                 }
 271                 mode_ptr++;
 272         }
 273         if (the_args[0])
 274                 strlcat(the_modes, the_args, sizeof(the_modes));
 275
 276         return IRC_WriteStrClient(Origin, RPL_CHANNELMODEIS_MSG,
 277                 Client_ID(Origin), Channel_Name(Channel), the_modes);
 278 }
 279
 280
 281 static bool
 282 Channel_Mode( CLIENT *Client, REQUEST *Req, CLIENT *Origin, CHANNEL *Channel )
 283 {
 284         /* Handle channel and channel-user modes */
 285
 286         char the_modes[COMMAND_LEN], the_args[COMMAND_LEN], x[2], argadd[CLIENT_PASS_LEN], *mode_ptr;
 287         bool ok, set, modeok = true, skiponce, use_servermode = false;
 288         int mode_arg, arg_arg;
 289         CLIENT *client;
 290         long l;
 291         size_t len;
 292
 293         /* Mode request: let's answer it :-) */
 294         if (Req->argc <= 1)
 295                 return Channel_Mode_Answer_Request(Origin, Channel);
 296
 297         /* Is the user allowed to change modes? */
 298         if (Client_Type(Client) == CLIENT_USER) {
 299                 /* Is the originating user on that channel? */
 300                 if (!Channel_IsMemberOf(Channel, Origin))
 301                         return IRC_WriteStrClient(Origin, ERR_NOTONCHANNEL_MSG,
 302                                 Client_ID(Origin), Channel_Name(Channel));
 303                 modeok = false;
 304                 /* channel operator? */
 305                 if (strchr(Channel_UserModes(Channel, Origin), 'o'))
 306                         modeok = true;
 307                 else if(Conf_OperCanMode) {
 308                         /* IRC-Operators can use MODE as well */
 309                         if (Client_OperByMe(Origin)) {
 310                                 modeok = true;
 311                                 if (Conf_OperServerMode)
 312                                         use_servermode = true; /* Change Origin to Server */
 313                         }
 314                 }
 315         }
 316
 317         mode_arg = 1;
 318         mode_ptr = Req->argv[mode_arg];
 319         if (Req->argc > mode_arg + 1)
 320                 arg_arg = mode_arg + 1;
 321         else
 322                 arg_arg = -1;
 323
 324         /* Initial state: set or unset modes? */
 325         skiponce = false;
 326         switch (*mode_ptr) {
 327         case '-': set = false; break;
 328         case '+': set = true; break;
 329         default:
 330                 set = true;
 331                 skiponce = true;
 332         }
 333
 334         /* Prepare reply string */
 335         strcpy(the_modes, set ? "+" : "-");
 336         the_args[0] = '\0';
 337
 338         x[1] = '\0';
 339         ok = CONNECTED;
 340         while (mode_ptr) {
 341                 if (! skiponce)
 342                         mode_ptr++;
 343                 if (!*mode_ptr) {
 344                         /* Try next argument if there's any */
 345                         if (arg_arg > mode_arg)
 346                                 mode_arg = arg_arg;
 347                         else
 348                                 mode_arg++;
 349
 350                         if (mode_arg >= Req->argc)
 351                                 break;
 352                         mode_ptr = Req->argv[mode_arg];
 353
 354                         if (Req->argc > mode_arg + 1)
 355                                 arg_arg = mode_arg + 1;
 356                         else
 357                                 arg_arg = -1;
 358                 }
 359                 skiponce = false;
 360
 361                 switch (*mode_ptr) {
 362                 case '+':
 363                 case '-':
 364                         if (((*mode_ptr == '+') && !set) || ((*mode_ptr == '-') && set)) {
 365                                 /* Action modifier ("+"/"-") must be changed ... */
 366                                 len = strlen( the_modes ) - 1;
 367                                 if ((the_modes[len] == '+') || (the_modes[len] == '-')) {
 368                                         /* Adjust last action modifier in result */
 369                                         the_modes[len] = *mode_ptr;
 370                                 } else {
 371                                         /* Append modifier character to result string */
 372                                         x[0] = *mode_ptr;
 373                                         strlcat(the_modes, x, sizeof(the_modes));
 374                                 }
 375                                 set = *mode_ptr == '+';
 376                         }
 377                         continue;
 378                 }
 379
 380                 /* Are there arguments left? */
 381                 if( arg_arg >= Req->argc ) arg_arg = -1;
 382
 383                 /* Validate modes */
 384                 x[0] = '\0';
 385                 argadd[0] = '\0';
 386                 client = NULL;
 387                 switch( *mode_ptr )
 388                 {
 389                         /* --- Channel modes --- */
 390
 391                         case 'i': /* Invite only */
 392                         case 'm': /* Moderated */
 393                         case 'n': /* Only members can write */
 394                         case 's': /* Secret channel */
 395                         case 't': /* Topic locked */
 396                                 if( modeok ) x[0] = *mode_ptr;
 397                                 else ok = IRC_WriteStrClient( Origin, ERR_CHANOPRIVSNEEDED_MSG, Client_ID( Origin ), Channel_Name( Channel ));
 398                                 break;
 399
 400                         case 'k': /* Channel key */
 401                                 if( ! set )
 402                                 {
 403                                         if( modeok ) x[0] = *mode_ptr;
 404                                         else ok = IRC_WriteStrClient( Origin, ERR_CHANOPRIVSNEEDED_MSG, Client_ID( Origin ), Channel_Name( Channel ));
 405                                         break;
 406                                 }
 407                                 if( arg_arg > mode_arg )
 408                                 {
 409                                         if( modeok )
 410                                         {
 411                                                 Channel_ModeDel( Channel, 'k' );
 412                                                 Channel_SetKey( Channel, Req->argv[arg_arg] );
 413                                                 strlcpy( argadd, Channel_Key( Channel ), sizeof( argadd ));
 414                                                 x[0] = *mode_ptr;
 415                                         }
 416                                         else ok = IRC_WriteStrClient( Origin, ERR_CHANOPRIVSNEEDED_MSG, Client_ID( Origin ), Channel_Name( Channel ));
 417                                         Req->argv[arg_arg][0] = '\0';
 418                                         arg_arg++;
 419                                 }
 420                                 else ok = IRC_WriteStrClient( Origin, ERR_NEEDMOREPARAMS_MSG, Client_ID( Origin ), Req->command );
 421                                 break;
 422
 423                         case 'l': /* Member limit */
 424                                 if( ! set )
 425                                 {
 426                                         if( modeok ) x[0] = *mode_ptr;
 427                                         else ok = IRC_WriteStrClient( Origin, ERR_CHANOPRIVSNEEDED_MSG, Client_ID( Origin ), Channel_Name( Channel ));
 428                                         break;
 429                                 }
 430                                 if( arg_arg > mode_arg )
 431                                 {
 432                                         if( modeok )
 433                                         {
 434                                                 l = atol( Req->argv[arg_arg] );
 435                                                 if( l > 0 && l < 0xFFFF )
 436                                                 {
 437                                                         Channel_ModeDel( Channel, 'l' );
 438                                                         Channel_SetMaxUsers( Channel, l );
 439                                                         snprintf( argadd, sizeof( argadd ), "%ld", l );
 440                                                         x[0] = *mode_ptr;
 441                                                 }
 442                                         }
 443                                         else ok = IRC_WriteStrClient( Origin, ERR_CHANOPRIVSNEEDED_MSG, Client_ID( Origin ), Channel_Name( Channel ));
 444                                         Req->argv[arg_arg][0] = '\0';
 445                                         arg_arg++;
 446                                 }
 447                                 else ok = IRC_WriteStrClient( Origin, ERR_NEEDMOREPARAMS_MSG, Client_ID( Origin ), Req->command );
 448                                 break;
 449
 450                         case 'P': /* Persistent channel */
 451                                 if (modeok) {
 452                                         /* Only IRC operators are allowed to
 453                                          * set the 'P' channel mode! */
 454                                         if (set && ! (Client_OperByMe(Client)
 455                                             || Client_Type(Client) == CLIENT_SERVER)) {
 456                                                 ok = IRC_WriteStrClient(Origin,
 457                                                         ERR_NOPRIVILEGES_MSG,
 458                                                         Client_ID(Origin));
 459                                         } else
 460                                                 x[0] = 'P';
 461                                 } else
 462                                         ok = IRC_WriteStrClient(Origin,
 463                                                 ERR_CHANOPRIVSNEEDED_MSG,
 464                                                 Client_ID(Origin),
 465                                                 Channel_Name(Channel));
 466                                 break;
 467
 468                         /* --- Channel user modes --- */
 469
 470                         case 'o': /* Channel operator */
 471                         case 'v': /* Voice */
 472                                 if( arg_arg > mode_arg )
 473                                 {
 474                                         if( modeok )
 475                                         {
 476                                                 client = Client_Search( Req->argv[arg_arg] );
 477                                                 if( client ) x[0] = *mode_ptr;
 478                                                 else ok = IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->argv[arg_arg] );
 479                                         }
 480                                         else ok = IRC_WriteStrClient( Origin, ERR_CHANOPRIVSNEEDED_MSG, Client_ID( Origin ), Channel_Name( Channel ));
 481                                         Req->argv[arg_arg][0] = '\0';
 482                                         arg_arg++;
 483                                 }
 484                                 else ok = IRC_WriteStrClient( Origin, ERR_NEEDMOREPARAMS_MSG, Client_ID( Origin ), Req->command );
 485                                 break;
 486
 487                         /* --- Channel lists --- */
 488
 489                         case 'I': /* Invite lists */
 490                                 if( arg_arg > mode_arg )
 491                                 {
 492                                         /* modify list */
 493                                         if( modeok )
 494                                         {
 495                                                 if( set ) Add_Ban_Invite(*mode_ptr, Origin, Client, Channel, Req->argv[arg_arg] );
 496                                                 else Del_Invite( Origin, Client, Channel, Req->argv[arg_arg] );
 497                                         }
 498                                         else ok = IRC_WriteStrClient( Origin, ERR_CHANOPRIVSNEEDED_MSG, Client_ID( Origin ), Channel_Name( Channel ));
 499                                         Req->argv[arg_arg][0] = '\0';
 500                                         arg_arg++;
 501                                 }
 502                                 else Channel_ShowInvites( Origin, Channel );
 503                                 break;
 504
 505                         case 'b': /* Ban lists */
 506                                 if( arg_arg > mode_arg )
 507                                 {
 508                                         /* modify list */
 509                                         if( modeok )
 510                                         {
 511                                                 if( set ) Add_Ban_Invite(*mode_ptr, Origin, Client, Channel, Req->argv[arg_arg] );
 512                                                 else Del_Ban( Origin, Client, Channel, Req->argv[arg_arg] );
 513                                         }
 514                                         else ok = IRC_WriteStrClient( Origin, ERR_CHANOPRIVSNEEDED_MSG, Client_ID( Origin ), Channel_Name( Channel ));
 515                                         Req->argv[arg_arg][0] = '\0';
 516                                         arg_arg++;
 517                                 }
 518                                 else Channel_ShowBans( Origin, Channel );
 519                                 break;
 520
 521                         default:
 522                                 Log( LOG_DEBUG, "Unknown mode \"%c%c\" from \"%s\" on %s!?", set ? '+' : '-', *mode_ptr, Client_ID( Origin ), Channel_Name( Channel ));
 523                                 if( Client_Type( Client ) != CLIENT_SERVER ) ok = IRC_WriteStrClient( Origin, ERR_UMODEUNKNOWNFLAG2_MSG, Client_ID( Origin ), set ? '+' : '-', *mode_ptr );
 524                                 x[0] = '\0';
 525                                 goto chan_exit;
 526                 }
 527                 if( ! ok ) break;
 528
 529                 /* Is there a valid mode change? */
 530                 if( ! x[0] ) continue;
 531
 532                 /* Validate target client */
 533                 if( client && ( ! Channel_IsMemberOf( Channel, client )))
 534                 {
 535                         if( ! IRC_WriteStrClient( Origin, ERR_USERNOTINCHANNEL_MSG, Client_ID( Origin ), Client_ID( client ), Channel_Name( Channel ))) break;
 536                         continue;
 537                 }
 538
 539                 if( set )
 540                 {
 541                         /* Set mode */
 542                         if( client )
 543                         {
 544                                 /* Channel-User-Mode */
 545                                 if( Channel_UserModeAdd( Channel, client, x[0] ))
 546                                 {
 547                                         strlcat( the_args, " ", sizeof( the_args ));
 548                                         strlcat( the_args, Client_ID( client ), sizeof( the_args ));
 549                                         strlcat( the_modes, x, sizeof( the_modes ));
 550                                         Log( LOG_DEBUG, "User \"%s\": Mode change on %s, now \"%s\"", Client_Mask( client ), Channel_Name( Channel ), Channel_UserModes( Channel, client ));
 551                                 }
 552                         }
 553                         else
 554                         {
 555                                 /* Channel-Mode */
 556                                 if( Channel_ModeAdd( Channel, x[0] ))
 557                                 {
 558                                         strlcat( the_modes, x, sizeof( the_modes ));
 559                                         Log( LOG_DEBUG, "Channel %s: Mode change, now \"%s\".", Channel_Name( Channel ), Channel_Modes( Channel ));
 560                                 }
 561                         }
 562                 }
 563                 else
 564                 {
 565                         /* Unset mode */
 566                         if( client )
 567                         {
 568                                 /* Channel-User-Mode */
 569                                 if( Channel_UserModeDel( Channel, client, x[0] ))
 570                                 {
 571                                         strlcat( the_args, " ", sizeof( the_args ));
 572                                         strlcat( the_args, Client_ID( client ), sizeof( the_args ));
 573                                         strlcat( the_modes, x, sizeof( the_modes ));
 574                                         Log( LOG_DEBUG, "User \"%s\": Mode change on %s, now \"%s\"", Client_Mask( client ), Channel_Name( Channel ), Channel_UserModes( Channel, client ));
 575                                 }
 576                         }
 577                         else
 578                         {
 579                                 /* Channel-Mode */
 580                                 if( Channel_ModeDel( Channel, x[0] ))
 581                                 {
 582                                         strlcat( the_modes, x, sizeof( the_modes ));
 583                                         Log( LOG_DEBUG, "Channel %s: Mode change, now \"%s\".", Channel_Name( Channel ), Channel_Modes( Channel ));
 584                                 }
 585                         }
 586                 }
 587
 588                 /* Are there additional arguments to add? */
 589                 if( argadd[0] )
 590                 {
 591                         strlcat( the_args, " ", sizeof( the_args ));
 592                         strlcat( the_args, argadd, sizeof( the_args ));
 593                 }
 594         }
 595 chan_exit:
 596
 597         /* Are there changed modes? */
 598         if (the_modes[1]) {
 599                 /* Clean up mode string */
 600                 len = strlen(the_modes) - 1;
 601                 if ((the_modes[len] == '+') || (the_modes[len] == '-'))
 602                         the_modes[len] = '\0';
 603
 604                 if (Client_Type(Client) == CLIENT_SERVER) {
 605                         /* Forward mode changes to channel users and other servers */
 606                         IRC_WriteStrServersPrefix(Client, Origin, "MODE %s %s%s", Channel_Name( Channel ), the_modes, the_args);
 607                         IRC_WriteStrChannelPrefix(Client, Channel, Origin, false, "MODE %s %s%s", Channel_Name( Channel ), the_modes, the_args);
 608                 } else {
 609                         if (use_servermode)
 610                                 Origin = Client_ThisServer();
 611                         /* Send reply to client and inform other servers and channel users */
 612                         ok = IRC_WriteStrClientPrefix( Client, Origin, "MODE %s %s%s", Channel_Name( Channel ), the_modes, the_args );
 613                         IRC_WriteStrServersPrefix( Client, Origin, "MODE %s %s%s", Channel_Name( Channel ), the_modes, the_args );
 614                         IRC_WriteStrChannelPrefix( Client, Channel, Origin, false, "MODE %s %s%s", Channel_Name( Channel ), the_modes, the_args );
 615                 }
 616         }
 617
 618         IRC_SetPenalty( Client, 1 );
 619         return CONNECTED;
 620 } /* Channel_Mode */
 621
 622
 623 GLOBAL bool
 624 IRC_AWAY( CLIENT *Client, REQUEST *Req )
 625 {
 626         assert( Client != NULL );
 627         assert( Req != NULL );
 628
 629         /* Falsche Anzahl Parameter? */
 630         if( Req->argc > 1 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
 631
 632         if(( Req->argc == 1 ) && (Req->argv[0][0] ))
 633         {
 634                 /* AWAY setzen */
 635                 Client_SetAway( Client, Req->argv[0] );
 636                 Client_ModeAdd( Client, 'a' );
 637                 IRC_WriteStrServersPrefix( Client, Client, "MODE %s :+a", Client_ID( Client ));
 638                 return IRC_WriteStrClient( Client, RPL_NOWAWAY_MSG, Client_ID( Client ));
 639         }
 640         else
 641         {
 642                 /* AWAY loeschen */
 643                 Client_ModeDel( Client, 'a' );
 644                 IRC_WriteStrServersPrefix( Client, Client, "MODE %s :-a", Client_ID( Client ));
 645                 return IRC_WriteStrClient( Client, RPL_UNAWAY_MSG, Client_ID( Client ));
 646         }
 647 } /* IRC_AWAY */
 648
 649
 650 static bool
 651 Add_Ban_Invite(int what, CLIENT *Prefix, CLIENT *Client, CHANNEL *Channel, char *Pattern )
 652 {
 653         const char *mask;
 654         bool already;
 655         bool ret;
 656
 657         assert( Client != NULL );
 658         assert( Channel != NULL );
 659         assert( Pattern != NULL );
 660         assert(what == 'I' || what == 'b');
 661
 662         mask = Lists_MakeMask(Pattern);
 663
 664         already = Lists_CheckDupeMask(Channel_GetListInvites(Channel), mask);
 665         if (!already) {
 666                 if (what == 'I')
 667                         ret = Channel_AddInvite(Channel, mask, false);
 668                 else
 669                         ret = Channel_AddBan(Channel, mask);
 670                 if (!ret)
 671                         return CONNECTED;
 672         }
 673         if (already && (Client_Type(Prefix) == CLIENT_SERVER))
 674                 return CONNECTED;
 675
 676         if (what == 'I')
 677                 return Send_ListChange("+I", Prefix, Client, Channel, mask);
 678         return Send_ListChange("+b", Prefix, Client, Channel, mask);
 679 }
 680
 681
 682 static bool
 683 Del_Invite( CLIENT *Prefix, CLIENT *Client, CHANNEL *Channel, char *Pattern )
 684 {
 685         char *mask;
 686
 687         assert( Client != NULL );
 688         assert( Channel != NULL );
 689         assert( Pattern != NULL );
 690
 691         mask = Lists_MakeMask( Pattern );
 692         Lists_Del(Channel_GetListInvites(Channel), mask);
 693         return Send_ListChange( "-I", Prefix, Client, Channel, mask );
 694 } /* Del_Invite */
 695
 696
 697 static bool
 698 Del_Ban( CLIENT *Prefix, CLIENT *Client, CHANNEL *Channel, char *Pattern )
 699 {
 700         char *mask;
 701
 702         assert( Client != NULL );
 703         assert( Channel != NULL );
 704         assert( Pattern != NULL );
 705
 706         mask = Lists_MakeMask( Pattern );
 707         Lists_Del(Channel_GetListBans(Channel), mask);
 708         return Send_ListChange( "-b", Prefix, Client, Channel, mask );
 709 } /* Del_Ban */
 710
 711
 712 static bool
 713 Send_ListChange( char *Mode, CLIENT *Prefix, CLIENT *Client, CHANNEL *Channel, const char *Mask )
 714 {
 715         /* Bestaetigung an Client schicken & andere Server sowie Channel-User informieren */
 716
 717         bool ok;
 718
 719         if( Client_Type( Client ) == CLIENT_USER )
 720         {
 721                 /* Bestaetigung an Client */
 722                 ok = IRC_WriteStrClientPrefix( Client, Prefix, "MODE %s %s %s", Channel_Name( Channel ), Mode, Mask );
 723         }
 724         else ok = true;
 725
 726         /* an andere Server */
 727         IRC_WriteStrServersPrefix( Client, Prefix, "MODE %s %s %s", Channel_Name( Channel ), Mode, Mask );
 728
 729         /* und lokale User im Channel */
 730         IRC_WriteStrChannelPrefix( Client, Channel, Prefix, false, "MODE %s %s %s", Channel_Name( Channel ), Mode, Mask );
 731
 732         return ok;
 733 } /* Send_ListChange */
 734
 735
 736 /* -eof- */