src/ngircd/irc-mode.c

   1 /*
   2  * ngIRCd -- The Next Generation IRC Daemon
   3  * Copyright (c)2001,2002 by 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 1.24.2.3 2003/01/08 23:13:45 alex 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 "conn.h"
  26 #include "client.h"
  27 #include "channel.h"
  28 #include "defines.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 LOCAL BOOLEAN Client_Mode PARAMS(( CLIENT *Client, REQUEST *Req, CLIENT *Origin, CLIENT *Target ));
  42 LOCAL BOOLEAN Channel_Mode PARAMS(( CLIENT *Client, REQUEST *Req, CLIENT *Origin, CHANNEL *Channel ));
  43
  44 LOCAL BOOLEAN Add_Invite PARAMS(( CLIENT *Prefix, CLIENT *Client, CHANNEL *Channel, CHAR *Pattern ));
  45 LOCAL BOOLEAN Add_Ban PARAMS(( CLIENT *Prefix, CLIENT *Client, CHANNEL *Channel, CHAR *Pattern ));
  46
  47 LOCAL BOOLEAN Del_Invite PARAMS(( CLIENT *Prefix, CLIENT *Client, CHANNEL *Channel, CHAR *Pattern ));
  48 LOCAL BOOLEAN Del_Ban PARAMS(( CLIENT *Prefix, CLIENT *Client, CHANNEL *Channel, CHAR *Pattern ));
  49
  50 LOCAL BOOLEAN Send_ListChange PARAMS(( CHAR *Mode, CLIENT *Prefix, CLIENT *Client, CHANNEL *Channel, CHAR *Mask ));
  51
  52
  53 GLOBAL BOOLEAN
  54 IRC_MODE( CLIENT *Client, REQUEST *Req )
  55 {
  56         CLIENT *cl, *origin;
  57         CHANNEL *chan;
  58
  59         assert( Client != NULL );
  60         assert( Req != NULL );
  61
  62         /* No parameters? */
  63         if( Req->argc < 1 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
  64
  65         /* Origin for answers */
  66         if( Client_Type( Client ) == CLIENT_SERVER )
  67         {
  68                 origin = Client_Search( Req->prefix );
  69                 if( ! origin ) return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->prefix );
  70         }
  71         else origin = Client;
  72
  73         /* Channel or user mode? */
  74         cl = chan = NULL;
  75         if( Client_IsValidNick( Req->argv[0] )) cl = Client_Search( Req->argv[0] );
  76         if( Channel_IsValidName( Req->argv[0] )) chan = Channel_Search( Req->argv[0] );
  77
  78         if( cl ) return Client_Mode( Client, Req, origin, cl );
  79         if( chan ) return Channel_Mode( Client, Req, origin, chan );
  80
  81         /* No target found! */
  82         return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->argv[0] );
  83 } /* IRC_MODE */
  84
  85
  86 LOCAL BOOLEAN
  87 Client_Mode( CLIENT *Client, REQUEST *Req, CLIENT *Origin, CLIENT *Target )
  88 {
  89         /* Handle client mode requests */
  90
  91         CHAR the_modes[COMMAND_LEN], x[2], *mode_ptr;
  92         BOOLEAN ok, set;
  93         INT mode_arg;
  94
  95         /* Is the client allowed to request or change the modes? */
  96         if( Client_Type( Client ) == CLIENT_USER )
  97         {
  98                 /* Users are only allowed to manipulate their own modes! */
  99                 if( Target != Client ) return IRC_WriteStrClient( Client, ERR_USERSDONTMATCH_MSG, Client_ID( Client ));
 100         }
 101
 102         /* Mode request: let's answer it :-) */
 103         if( Req->argc == 1 ) return IRC_WriteStrClient( Origin, RPL_UMODEIS_MSG, Client_ID( Origin ), Client_Modes( Target ));
 104
 105         mode_arg = 1;
 106         mode_ptr = Req->argv[mode_arg];
 107
 108         /* Initial state: set or unset modes? */
 109         if( *mode_ptr == '+' ) set = TRUE;
 110         else if( *mode_ptr == '-' ) set = FALSE;
 111         else return IRC_WriteStrClient( Origin, ERR_UMODEUNKNOWNFLAG_MSG, Client_ID( Origin ));
 112
 113         /* Prepare reply string */
 114         if( set ) strcpy( the_modes, "+" );
 115         else strcpy( the_modes, "-" );
 116
 117         x[1] = '\0';
 118         ok = CONNECTED;
 119         while( mode_ptr )
 120         {
 121                 mode_ptr++;
 122                 if( ! *mode_ptr )
 123                 {
 124                         /* Try next argument if there's any */
 125                         mode_arg++;
 126                         if( mode_arg < Req->argc ) mode_ptr = Req->argv[mode_arg];
 127                         else break;
 128                 }
 129
 130                 switch( *mode_ptr )
 131                 {
 132                         case '+':
 133                         case '-':
 134                                 if((( *mode_ptr == '+' ) && ( ! set )) || (( *mode_ptr == '-' ) && ( set )))
 135                                 {
 136                                         /* Action modifier ("+"/"-") must be changed ... */
 137                                         if(( the_modes[strlen( the_modes ) - 1] == '+' ) || ( the_modes[strlen( the_modes ) - 1] == '-' ))
 138                                         {
 139                                                 /* Adjust last action modifier in result */
 140                                                 the_modes[strlen( the_modes ) - 1] = *mode_ptr;
 141                                         }
 142                                         else
 143                                         {
 144                                                 /* Append modifier character to result string */
 145                                                 x[0] = *mode_ptr; strcat( the_modes, x );
 146                                         }
 147                                         if( *mode_ptr == '+' ) set = TRUE;
 148                                         else set = FALSE;
 149                                 }
 150                                 continue;
 151                 }
 152
 153                 /* Validate modes */
 154                 x[0] = '\0';
 155                 switch( *mode_ptr )
 156                 {
 157                         case 'a':
 158                                 /* Away */
 159                                 if( Client_Type( Client ) == CLIENT_SERVER )
 160                                 {
 161                                         x[0] = 'a';
 162                                         Client_SetAway( Client, DEFAULT_AWAY_MSG );
 163                                 }
 164                                 else ok = IRC_WriteStrClient( Origin, ERR_NOPRIVILEGES_MSG, Client_ID( Origin ));
 165                                 break;
 166                         case 'i':
 167                                 /* Invisible */
 168                                 x[0] = 'i';
 169                                 break;
 170                         case 'o':
 171                                 /* IRC operator (only unsetable!) */
 172                                 if(( ! set ) || ( Client_Type( Client ) == CLIENT_SERVER ))
 173                                 {
 174                                         Client_SetOperByMe( Target, FALSE );
 175                                         x[0] = 'o';
 176                                 }
 177                                 else ok = IRC_WriteStrClient( Origin, ERR_NOPRIVILEGES_MSG, Client_ID( Origin ));
 178                                 break;
 179                         case 'r':
 180                                 /* Restricted (only setable) */
 181                                 if(( set ) || ( Client_Type( Client ) == CLIENT_SERVER )) x[0] = 'r';
 182                                 else ok = IRC_WriteStrClient( Origin, ERR_RESTRICTED_MSG, Client_ID( Origin ));
 183                                 break;
 184                         case 's':
 185                                 /* Server messages */
 186                                 x[0] = 's';
 187                                 break;
 188                         default:
 189                                 Log( LOG_DEBUG, "Unknown mode \"%c%c\" from \"%s\"!?", set ? '+' : '-', *mode_ptr, Client_ID( Origin ));
 190                                 if( Client_Type( Client ) != CLIENT_SERVER ) ok = IRC_WriteStrClient( Origin, ERR_UMODEUNKNOWNFLAG2_MSG, Client_ID( Origin ), set ? '+' : '-', *mode_ptr );
 191                                 x[0] = '\0';
 192                                 goto client_exit;
 193                 }
 194                 if( ! ok ) break;
 195
 196                 /* Is there a valid mode change? */
 197                 if( ! x[0] ) continue;
 198
 199                 if( set )
 200                 {
 201                         /* Set mode */
 202                         if( Client_ModeAdd( Target, x[0] )) strcat( the_modes, x );
 203
 204                 }
 205                 else
 206                 {
 207                         /* Unset mode */
 208                         if( Client_ModeDel( Target, x[0] )) strcat( the_modes, x );
 209                 }
 210         }
 211 client_exit:
 212
 213         /* Are there changed modes? */
 214         if( the_modes[1] )
 215         {
 216                 /* Remoce needless action modifier characters */
 217                 if(( the_modes[strlen( the_modes ) - 1] == '+' ) || ( the_modes[strlen( the_modes ) - 1] == '-' )) the_modes[strlen( the_modes ) - 1] = '\0';
 218
 219                 if( Client_Type( Client ) == CLIENT_SERVER )
 220                 {
 221                         /* Forward modes to other servers */
 222                         IRC_WriteStrServersPrefix( Client, Origin, "MODE %s :%s", Client_ID( Target ), the_modes );
 223                 }
 224                 else
 225                 {
 226                         /* Send reply to client and inform other servers */
 227                         ok = IRC_WriteStrClientPrefix( Client, Origin, "MODE %s %s", Client_ID( Target ), the_modes );
 228                         IRC_WriteStrServersPrefix( Client, Origin, "MODE %s :%s", Client_ID( Target ), the_modes );
 229                 }
 230                 Log( LOG_DEBUG, "User \"%s\": Mode change, now \"%s\".", Client_Mask( Target ), Client_Modes( Target ));
 231         }
 232
 233         return ok;
 234 } /* Client_Mode */
 235
 236
 237 LOCAL BOOLEAN
 238 Channel_Mode( CLIENT *Client, REQUEST *Req, CLIENT *Origin, CHANNEL *Channel )
 239 {
 240         /* Handle channel and channel-user modes */
 241
 242         CHAR the_modes[COMMAND_LEN], the_args[COMMAND_LEN], x[2], argadd[CLIENT_PASS_LEN], *mode_ptr;
 243         BOOLEAN ok, set, modeok, skiponce;
 244         INT mode_arg, arg_arg;
 245         CLIENT *client;
 246         LONG l;
 247
 248         /* Mode request: let's answer it :-) */
 249         if( Req->argc == 1 )
 250         {
 251                 /* Member or not? -- That's the question! */
 252                 if( ! Channel_IsMemberOf( Channel, Origin )) return IRC_WriteStrClient( Origin, RPL_CHANNELMODEIS_MSG, Client_ID( Origin ), Channel_Name( Channel ), Channel_Modes( Channel ));
 253
 254                 /* The sender is a member: generate extended reply */
 255                 strcpy( the_modes, Channel_Modes( Channel ));
 256                 mode_ptr = the_modes;
 257                 strcpy( the_args, "" );
 258                 while( *mode_ptr )
 259                 {
 260                         switch( *mode_ptr )
 261                         {
 262                                 case 'l':
 263                                         snprintf( argadd, sizeof( argadd ), " %ld", Channel_MaxUsers( Channel ));
 264                                         strcat( the_args, argadd );
 265                                         break;
 266                                 case 'k':
 267                                         strcat( the_args, " " );
 268                                         strcat( the_args, Channel_Key( Channel ));
 269                                         break;
 270                         }
 271                         mode_ptr++;
 272                 }
 273                 if( the_args[0] ) strcat( the_modes, the_args );
 274
 275                 return IRC_WriteStrClient( Origin, RPL_CHANNELMODEIS_MSG, Client_ID( Origin ), Channel_Name( Channel ), the_modes );
 276         }
 277
 278         /* Is the user allowed to change modes? */
 279         if( Client_Type( Client ) == CLIENT_USER )
 280         {
 281                 if( strchr( Channel_UserModes( Channel, Origin ), 'o' )) modeok = TRUE;
 282                 else modeok = FALSE;
 283                 if( Conf_OperCanMode )
 284                 {
 285                         /* auch IRC-Operatoren duerfen MODE verwenden */
 286                         if( Client_OperByMe( Origin )) modeok = TRUE;
 287                 }
 288         }
 289         else modeok = TRUE;
 290
 291         mode_arg = 1;
 292         mode_ptr = Req->argv[mode_arg];
 293         if( Req->argc > mode_arg + 1 ) arg_arg = mode_arg + 1;
 294         else arg_arg = -1;
 295
 296         /* Initial state: set or unset modes? */
 297         skiponce = FALSE;
 298         if( *mode_ptr == '-' ) set = FALSE;
 299         else if( *mode_ptr == '+' ) set = TRUE;
 300         else set = skiponce = TRUE;
 301
 302         /* Prepare reply string */
 303         if( set ) strcpy( the_modes, "+" );
 304         else strcpy( the_modes, "-" );
 305         strcpy( the_args, " " );
 306
 307         x[1] = '\0';
 308         ok = CONNECTED;
 309         while( mode_ptr )
 310         {
 311                 if( ! skiponce ) mode_ptr++;
 312                 if( ! *mode_ptr )
 313                 {
 314                         /* Try next argument if there's any */
 315                         if( arg_arg > mode_arg ) mode_arg = arg_arg;
 316                         else mode_arg++;
 317                         if( mode_arg < Req->argc ) mode_ptr = Req->argv[mode_arg];
 318                         else break;
 319                         if( Req->argc > mode_arg + 1 ) arg_arg = mode_arg + 1;
 320                         else arg_arg = -1;
 321                 }
 322                 skiponce = FALSE;
 323
 324                 switch( *mode_ptr )
 325                 {
 326                         case '+':
 327                         case '-':
 328                                 if((( *mode_ptr == '+' ) && ( ! set )) || (( *mode_ptr == '-' ) && ( set )))
 329                                 {
 330                                         /* Action modifier ("+"/"-") must be changed ... */
 331                                         if(( the_modes[strlen( the_modes ) - 1] == '+' ) || ( the_modes[strlen( the_modes ) - 1] == '-' ))
 332                                         {
 333                                                 /* Adjust last action modifier in result */
 334                                                 the_modes[strlen( the_modes ) - 1] = *mode_ptr;
 335                                         }
 336                                         else
 337                                         {
 338                                                 /* Append modifier character to result string */
 339                                                 x[0] = *mode_ptr; strcat( the_modes, x );
 340                                         }
 341                                         if( *mode_ptr == '+' ) set = TRUE;
 342                                         else set = FALSE;
 343                                 }
 344                                 continue;
 345                 }
 346
 347                 /* Are there arguments left? */
 348                 if( arg_arg >= Req->argc ) arg_arg = -1;
 349
 350                 /* Validate modes */
 351                 x[0] = '\0';
 352                 argadd[0] = '\0';
 353                 client = NULL;
 354                 switch( *mode_ptr )
 355                 {
 356                         /* Channel modes */
 357                         case 'i':
 358                                 /* Invite-Only */
 359                                 if( modeok ) x[0] = 'i';
 360                                 else ok = IRC_WriteStrClient( Origin, ERR_CHANOPRIVSNEEDED_MSG, Client_ID( Origin ), Channel_Name( Channel ));
 361                                 break;
 362                         case 'm':
 363                                 /* Moderated */
 364                                 if( modeok ) x[0] = 'm';
 365                                 else ok = IRC_WriteStrClient( Origin, ERR_CHANOPRIVSNEEDED_MSG, Client_ID( Origin ), Channel_Name( Channel ));
 366                                 break;
 367                         case 'n':
 368                                 /* kein Schreiben in den Channel von aussen */
 369                                 if( modeok ) x[0] = 'n';
 370                                 else ok = IRC_WriteStrClient( Origin, ERR_CHANOPRIVSNEEDED_MSG, Client_ID( Origin ), Channel_Name( Channel ));
 371                                 break;
 372                         case 't':
 373                                 /* Topic Lock */
 374                                 if( modeok ) x[0] = 't';
 375                                 else ok = IRC_WriteStrClient( Origin, ERR_CHANOPRIVSNEEDED_MSG, Client_ID( Origin ), Channel_Name( Channel ));
 376                                 break;
 377                         case 'P':
 378                                 /* Persistent channel */
 379                                 if( modeok )
 380                                 {
 381                                         if( set && ( ! Client_OperByMe( Client )))
 382                                         {
 383                                                 /* Only IRC operators are allowed to set P mode */
 384                                                 ok = IRC_WriteStrClient( Origin, ERR_NOPRIVILEGES_MSG, Client_ID( Origin ));
 385                                         }
 386                                         else x[0] = 'P';
 387                                 }
 388                                 else ok = IRC_WriteStrClient( Origin, ERR_CHANOPRIVSNEEDED_MSG, Client_ID( Origin ), Channel_Name( Channel ));
 389                                 break;
 390
 391                         /* Channel user modes */
 392                         case 'o':
 393                                 /* Channel operator */
 394                         case 'v':
 395                                 /* Voice */
 396                                 if( arg_arg > mode_arg )
 397                                 {
 398                                         if( modeok )
 399                                         {
 400                                                 client = Client_Search( Req->argv[arg_arg] );
 401                                                 if( client ) x[0] = *mode_ptr;
 402                                                 else ok = IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->argv[arg_arg] );
 403                                         }
 404                                         else ok = IRC_WriteStrClient( Origin, ERR_CHANOPRIVSNEEDED_MSG, Client_ID( Origin ), Channel_Name( Channel ));
 405                                         Req->argv[arg_arg][0] = '\0';
 406                                         arg_arg++;
 407                                 }
 408                                 else ok = IRC_WriteStrClient( Origin, ERR_NEEDMOREPARAMS_MSG, Client_ID( Origin ), Req->command );
 409                                 break;
 410                         case 'k':
 411                                 /* Channel key */
 412                                 if( ! set )
 413                                 {
 414                                         if( modeok ) x[0] = *mode_ptr;
 415                                         else ok = IRC_WriteStrClient( Origin, ERR_CHANOPRIVSNEEDED_MSG, Client_ID( Origin ), Channel_Name( Channel ));
 416                                         break;
 417                                 }
 418                                 if( arg_arg > mode_arg )
 419                                 {
 420                                         if( modeok )
 421                                         {
 422                                                 Channel_ModeDel( Channel, 'k' );
 423                                                 Channel_SetKey( Channel, Req->argv[arg_arg] );
 424                                                 strcpy( argadd, Channel_Key( Channel ));
 425                                                 x[0] = *mode_ptr;
 426                                         }
 427                                         else ok = IRC_WriteStrClient( Origin, ERR_CHANOPRIVSNEEDED_MSG, Client_ID( Origin ), Channel_Name( Channel ));
 428                                         Req->argv[arg_arg][0] = '\0';
 429                                         arg_arg++;
 430                                 }
 431                                 else ok = IRC_WriteStrClient( Origin, ERR_NEEDMOREPARAMS_MSG, Client_ID( Origin ), Req->command );
 432                                 break;
 433                         case 'l':
 434                                 /* Member limit */
 435                                 if( ! set )
 436                                 {
 437                                         if( modeok ) x[0] = *mode_ptr;
 438                                         else ok = IRC_WriteStrClient( Origin, ERR_CHANOPRIVSNEEDED_MSG, Client_ID( Origin ), Channel_Name( Channel ));
 439                                         break;
 440                                 }
 441                                 if( arg_arg > mode_arg )
 442                                 {
 443                                         if( modeok )
 444                                         {
 445                                                 l = atol( Req->argv[arg_arg] );
 446                                                 if( l > 0 && l < 0xFFFF )
 447                                                 {
 448                                                         Channel_ModeDel( Channel, 'l' );
 449                                                         Channel_SetMaxUsers( Channel, l );
 450                                                         sprintf( argadd, "%ld", l );
 451                                                         x[0] = *mode_ptr;
 452                                                 }
 453                                         }
 454                                         else ok = IRC_WriteStrClient( Origin, ERR_CHANOPRIVSNEEDED_MSG, Client_ID( Origin ), Channel_Name( Channel ));
 455                                         Req->argv[arg_arg][0] = '\0';
 456                                         arg_arg++;
 457                                 }
 458                                 else ok = IRC_WriteStrClient( Origin, ERR_NEEDMOREPARAMS_MSG, Client_ID( Origin ), Req->command );
 459                                 break;
 460
 461                         /* Channel lists */
 462                         case 'I':
 463                                 /* Invite lists */
 464                                 if( arg_arg > mode_arg )
 465                                 {
 466                                         /* modify list */
 467                                         if( modeok )
 468                                         {
 469                                                 if( set ) Add_Invite( Origin, Client, Channel, Req->argv[arg_arg] );
 470                                                 else Del_Invite( Origin, Client, Channel, Req->argv[arg_arg] );
 471                                         }
 472                                         else ok = IRC_WriteStrClient( Origin, ERR_CHANOPRIVSNEEDED_MSG, Client_ID( Origin ), Channel_Name( Channel ));
 473                                         Req->argv[arg_arg][0] = '\0';
 474                                         arg_arg++;
 475                                 }
 476                                 else Lists_ShowInvites( Origin, Channel );
 477                                 break;
 478                         case 'b':
 479                                 /* Ban lists */
 480                                 if( arg_arg > mode_arg )
 481                                 {
 482                                         /* modify list */
 483                                         if( modeok )
 484                                         {
 485                                                 if( set ) Add_Ban( Origin, Client, Channel, Req->argv[arg_arg] );
 486                                                 else Del_Ban( Origin, Client, Channel, Req->argv[arg_arg] );
 487                                         }
 488                                         else ok = IRC_WriteStrClient( Origin, ERR_CHANOPRIVSNEEDED_MSG, Client_ID( Origin ), Channel_Name( Channel ));
 489                                         Req->argv[arg_arg][0] = '\0';
 490                                         arg_arg++;
 491                                 }
 492                                 else Lists_ShowBans( Origin, Channel );
 493                                 break;
 494
 495                         default:
 496                                 Log( LOG_DEBUG, "Unknown mode \"%c%c\" from \"%s\" on %s!?", set ? '+' : '-', *mode_ptr, Client_ID( Origin ), Channel_Name( Channel ));
 497                                 if( Client_Type( Client ) != CLIENT_SERVER ) ok = IRC_WriteStrClient( Origin, ERR_UMODEUNKNOWNFLAG2_MSG, Client_ID( Origin ), set ? '+' : '-', *mode_ptr );
 498                                 x[0] = '\0';
 499                                 goto chan_exit;
 500                 }
 501                 if( ! ok ) break;
 502
 503                 /* Is there a valid mode change? */
 504                 if( ! x[0] ) continue;
 505
 506                 if( set )
 507                 {
 508                         /* Set mode */
 509                         if( client )
 510                         {
 511                                 /* Channel-User-Mode */
 512                                 if( Channel_UserModeAdd( Channel, client, x[0] ))
 513                                 {
 514                                         strcat( the_args, Client_ID( client ));
 515                                         strcat( the_args, " " ); strcat( the_modes, x );
 516                                         Log( LOG_DEBUG, "User \"%s\": Mode change on %s, now \"%s\"", Client_Mask( client ), Channel_Name( Channel ), Channel_UserModes( Channel, client ));
 517                                 }
 518                         }
 519                         else
 520                         {
 521                                 /* Channel-Mode */
 522                                 if( Channel_ModeAdd( Channel, x[0] ))
 523                                 {
 524                                         strcat( the_modes, x );
 525                                         Log( LOG_DEBUG, "Channel %s: Mode change, now \"%s\".", Channel_Name( Channel ), Channel_Modes( Channel ));
 526                                 }
 527                         }
 528                 }
 529                 else
 530                 {
 531                         /* Unset mode */
 532                         if( client )
 533                         {
 534                                 /* Channel-User-Mode */
 535                                 if( Channel_UserModeDel( Channel, client, x[0] ))
 536                                 {
 537                                         strcat( the_args, Client_ID( client ));
 538                                         strcat( the_args, " " ); strcat( the_modes, x );
 539                                         Log( LOG_DEBUG, "User \"%s\": Mode change on %s, now \"%s\"", Client_Mask( client ), Channel_Name( Channel ), Channel_UserModes( Channel, client ));
 540                                 }
 541                         }
 542                         else
 543                         {
 544                                 /* Channel-Mode */
 545                                 if( Channel_ModeDel( Channel, x[0] ))
 546                                 {
 547                                         strcat( the_modes, x );
 548                                         Log( LOG_DEBUG, "Channel %s: Mode change, now \"%s\".", Channel_Name( Channel ), Channel_Modes( Channel ));
 549                                 }
 550                         }
 551                 }
 552
 553                 /* Are there additional arguments to add? */
 554                 if( argadd[0] )
 555                 {
 556                         if( the_args[strlen( the_args ) - 1] != ' ' ) strcat( the_args, " " );
 557                         strcat( the_args, argadd );
 558                 }
 559         }
 560 chan_exit:
 561
 562         /* Are there changed modes? */
 563         if( the_modes[1] )
 564         {
 565                 /* Clean up mode string */
 566                 if(( the_modes[strlen( the_modes ) - 1] == '+' ) || ( the_modes[strlen( the_modes ) - 1] == '-' )) the_modes[strlen( the_modes ) - 1] = '\0';
 567
 568                 /* Clean up argument string if there are none */
 569                 if( ! the_args[1] ) the_args[0] = '\0';
 570
 571                 if( Client_Type( Client ) == CLIENT_SERVER )
 572                 {
 573                         /* Forward mode changes to channel users and other servers */
 574                         IRC_WriteStrServersPrefix( Client, Origin, "MODE %s %s%s", Channel_Name( Channel ), the_modes, the_args );
 575                         IRC_WriteStrChannelPrefix( Client, Channel, Origin, FALSE, "MODE %s %s%s", Channel_Name( Channel ), the_modes, the_args );
 576                 }
 577                 else
 578                 {
 579                         /* Send reply to client and inform other servers and channel users */
 580                         ok = IRC_WriteStrClientPrefix( Client, Origin, "MODE %s %s%s", Channel_Name( Channel ), the_modes, the_args );
 581                         IRC_WriteStrServersPrefix( Client, Origin, "MODE %s %s%s", Channel_Name( Channel ), the_modes, the_args );
 582                         IRC_WriteStrChannelPrefix( Client, Channel, Origin, FALSE, "MODE %s %s%s", Channel_Name( Channel ), the_modes, the_args );
 583                 }
 584         }
 585
 586         return CONNECTED;
 587 } /* Channel_Mode */
 588
 589
 590 GLOBAL BOOLEAN
 591 IRC_AWAY( CLIENT *Client, REQUEST *Req )
 592 {
 593         assert( Client != NULL );
 594         assert( Req != NULL );
 595
 596         /* Falsche Anzahl Parameter? */
 597         if( Req->argc > 1 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
 598
 599         if(( Req->argc == 1 ) && (Req->argv[0][0] ))
 600         {
 601                 /* AWAY setzen */
 602                 Client_SetAway( Client, Req->argv[0] );
 603                 Client_ModeAdd( Client, 'a' );
 604                 IRC_WriteStrServersPrefix( Client, Client, "MODE %s :+a", Client_ID( Client ));
 605                 return IRC_WriteStrClient( Client, RPL_NOWAWAY_MSG, Client_ID( Client ));
 606         }
 607         else
 608         {
 609                 /* AWAY loeschen */
 610                 Client_ModeDel( Client, 'a' );
 611                 IRC_WriteStrServersPrefix( Client, Client, "MODE %s :-a", Client_ID( Client ));
 612                 return IRC_WriteStrClient( Client, RPL_UNAWAY_MSG, Client_ID( Client ));
 613         }
 614 } /* IRC_AWAY */
 615
 616
 617 LOCAL BOOLEAN
 618 Add_Invite( CLIENT *Prefix, CLIENT *Client, CHANNEL *Channel, CHAR *Pattern )
 619 {
 620         CHAR *mask;
 621
 622         assert( Client != NULL );
 623         assert( Channel != NULL );
 624         assert( Pattern != NULL );
 625
 626         mask = Lists_MakeMask( Pattern );
 627
 628         if( ! Lists_AddInvited( Prefix, mask, Channel, FALSE )) return CONNECTED;
 629         return Send_ListChange( "+I", Prefix, Client, Channel, mask );
 630 } /* Add_Invite */
 631
 632
 633 LOCAL BOOLEAN
 634 Add_Ban( CLIENT *Prefix, CLIENT *Client, CHANNEL *Channel, CHAR *Pattern )
 635 {
 636         CHAR *mask;
 637
 638         assert( Client != NULL );
 639         assert( Channel != NULL );
 640         assert( Pattern != NULL );
 641
 642         mask = Lists_MakeMask( Pattern );
 643
 644         if( ! Lists_AddBanned( Prefix, mask, Channel )) return CONNECTED;
 645         return Send_ListChange( "+b", Prefix, Client, Channel, mask );
 646 } /* Add_Ban */
 647
 648
 649 LOCAL BOOLEAN
 650 Del_Invite( CLIENT *Prefix, CLIENT *Client, CHANNEL *Channel, CHAR *Pattern )
 651 {
 652         CHAR *mask;
 653
 654         assert( Client != NULL );
 655         assert( Channel != NULL );
 656         assert( Pattern != NULL );
 657
 658         mask = Lists_MakeMask( Pattern );
 659         Lists_DelInvited( mask, Channel );
 660         return Send_ListChange( "-I", Prefix, Client, Channel, mask );
 661 } /* Del_Invite */
 662
 663
 664 LOCAL BOOLEAN
 665 Del_Ban( CLIENT *Prefix, CLIENT *Client, CHANNEL *Channel, CHAR *Pattern )
 666 {
 667         CHAR *mask;
 668
 669         assert( Client != NULL );
 670         assert( Channel != NULL );
 671         assert( Pattern != NULL );
 672
 673         mask = Lists_MakeMask( Pattern );
 674         Lists_DelBanned( mask, Channel );
 675         return Send_ListChange( "-b", Prefix, Client, Channel, mask );
 676 } /* Del_Ban */
 677
 678
 679 LOCAL BOOLEAN
 680 Send_ListChange( CHAR *Mode, CLIENT *Prefix, CLIENT *Client, CHANNEL *Channel, CHAR *Mask )
 681 {
 682         /* Bestaetigung an Client schicken & andere Server sowie Channel-User informieren */
 683
 684         BOOLEAN ok;
 685
 686         if( Client_Type( Client ) == CLIENT_USER )
 687         {
 688                 /* Bestaetigung an Client */
 689                 ok = IRC_WriteStrClientPrefix( Client, Prefix, "MODE %s %s %s", Channel_Name( Channel ), Mode, Mask );
 690         }
 691         else ok = TRUE;
 692
 693         /* an andere Server */
 694         IRC_WriteStrServersPrefix( Client, Prefix, "MODE %s %s %s", Channel_Name( Channel ), Mode, Mask );
 695
 696         /* und lokale User im Channel */
 697         IRC_WriteStrChannelPrefix( Client, Channel, Prefix, FALSE, "MODE %s %s %s", Channel_Name( Channel ), Mode, Mask );
 698
 699         return ok;
 700 } /* Send_ListChange */
 701
 702
 703 /* -eof- */