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 1.42 2005/05/14 20:29:34 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 "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 LOCAL bool Client_Mode PARAMS(( CLIENT *Client, REQUEST *Req, CLIENT *Origin, CLIENT *Target ));
  42 LOCAL bool Channel_Mode PARAMS(( CLIENT *Client, REQUEST *Req, CLIENT *Origin, CHANNEL *Channel ));
  43
  44 LOCAL bool Add_Invite PARAMS(( CLIENT *Prefix, CLIENT *Client, CHANNEL *Channel, char *Pattern ));
  45 LOCAL bool Add_Ban PARAMS(( CLIENT *Prefix, CLIENT *Client, CHANNEL *Channel, char *Pattern ));
  46
  47 LOCAL bool Del_Invite PARAMS(( CLIENT *Prefix, CLIENT *Client, CHANNEL *Channel, char *Pattern ));
  48 LOCAL bool Del_Ban PARAMS(( CLIENT *Prefix, CLIENT *Client, CHANNEL *Channel, char *Pattern ));
  49
  50 LOCAL bool Send_ListChange PARAMS(( char *Mode, CLIENT *Prefix, CLIENT *Client, CHANNEL *Channel, char *Mask ));
  51
  52
  53 GLOBAL bool
  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 bool
  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         bool ok, set;
  93         int mode_arg;
  94         size_t len;
  95
  96         /* Is the client allowed to request or change the modes? */
  97         if( Client_Type( Client ) == CLIENT_USER )
  98         {
  99                 /* Users are only allowed to manipulate their own modes! */
 100                 if( Target != Client ) return IRC_WriteStrClient( Client, ERR_USERSDONTMATCH_MSG, Client_ID( Client ));
 101         }
 102
 103         /* Mode request: let's answer it :-) */
 104         if( Req->argc == 1 ) return IRC_WriteStrClient( Origin, RPL_UMODEIS_MSG, Client_ID( Origin ), Client_Modes( Target ));
 105
 106         mode_arg = 1;
 107         mode_ptr = Req->argv[mode_arg];
 108
 109         /* Initial state: set or unset modes? */
 110         if( *mode_ptr == '+' ) set = true;
 111         else if( *mode_ptr == '-' ) set = false;
 112         else return IRC_WriteStrClient( Origin, ERR_UMODEUNKNOWNFLAG_MSG, Client_ID( Origin ));
 113
 114         /* Prepare reply string */
 115         if( set ) strcpy( the_modes, "+" );
 116         else strcpy( the_modes, "-" );
 117
 118         x[1] = '\0';
 119         ok = CONNECTED;
 120         while( mode_ptr )
 121         {
 122                 mode_ptr++;
 123                 if( ! *mode_ptr )
 124                 {
 125                         /* Try next argument if there's any */
 126                         mode_arg++;
 127                         if( mode_arg < Req->argc ) mode_ptr = Req->argv[mode_arg];
 128                         else break;
 129                 }
 130
 131                 switch( *mode_ptr )
 132                 {
 133                         case '+':
 134                         case '-':
 135                                 if((( *mode_ptr == '+' ) && ( ! set )) || (( *mode_ptr == '-' ) && ( set )))
 136                                 {
 137                                         /* Action modifier ("+"/"-") must be changed ... */
 138                                         len = strlen( the_modes ) - 1;
 139                                         if(( the_modes[len] == '+' ) || ( the_modes[len] == '-' ))
 140                                         {
 141                                                 /* Adjust last action modifier in result */
 142                                                 the_modes[len] = *mode_ptr;
 143                                         }
 144                                         else
 145                                         {
 146                                                 /* Append modifier character to result string */
 147                                                 x[0] = *mode_ptr;
 148                                                 strlcat( the_modes, x, sizeof( the_modes ));
 149                                         }
 150                                         if( *mode_ptr == '+' ) set = true;
 151                                         else set = false;
 152                                 }
 153                                 continue;
 154                 }
 155
 156                 /* Validate modes */
 157                 x[0] = '\0';
 158                 switch( *mode_ptr )
 159                 {
 160                         case 'i': /* Invisible */
 161                         case 's': /* Server messages */
 162                                 x[0] = *mode_ptr;
 163                                 break;
 164
 165                         case 'a': /* Away */
 166                                 if( Client_Type( Client ) == CLIENT_SERVER )
 167                                 {
 168                                         x[0] = 'a';
 169                                         Client_SetAway( Origin, DEFAULT_AWAY_MSG );
 170                                 }
 171                                 else ok = IRC_WriteStrClient( Origin, ERR_NOPRIVILEGES_MSG, Client_ID( Origin ));
 172                                 break;
 173
 174                         case 'o': /* IRC operator (only unsettable!) */
 175                                 if(( ! set ) || ( Client_Type( Client ) == CLIENT_SERVER ))
 176                                 {
 177                                         Client_SetOperByMe( Target, false );
 178                                         x[0] = 'o';
 179                                 }
 180                                 else ok = IRC_WriteStrClient( Origin, ERR_NOPRIVILEGES_MSG, Client_ID( Origin ));
 181                                 break;
 182
 183                         case 'r': /* Restricted (only settable) */
 184                                 if(( set ) || ( Client_Type( Client ) == CLIENT_SERVER )) x[0] = 'r';
 185                                 else ok = IRC_WriteStrClient( Origin, ERR_RESTRICTED_MSG, Client_ID( Origin ));
 186                                 break;
 187
 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] )) strlcat( the_modes, x, sizeof( the_modes ));
 203
 204                 }
 205                 else
 206                 {
 207                         /* Unset mode */
 208                         if( Client_ModeDel( Target, x[0] )) strlcat( the_modes, x, sizeof( the_modes ));
 209                 }
 210         }
 211 client_exit:
 212
 213         /* Are there changed modes? */
 214         if( the_modes[1] )
 215         {
 216                 /* Remoce needless action modifier characters */
 217                 len = strlen( the_modes ) - 1;
 218                 if(( the_modes[len] == '+' ) || ( the_modes[len] == '-' )) the_modes[len] = '\0';
 219
 220                 if( Client_Type( Client ) == CLIENT_SERVER )
 221                 {
 222                         /* Forward modes to other servers */
 223                         IRC_WriteStrServersPrefix( Client, Origin, "MODE %s :%s", Client_ID( Target ), the_modes );
 224                 }
 225                 else
 226                 {
 227                         /* Send reply to client and inform other servers */
 228                         ok = IRC_WriteStrClientPrefix( Client, Origin, "MODE %s :%s", Client_ID( Target ), the_modes );
 229                         IRC_WriteStrServersPrefix( Client, Origin, "MODE %s :%s", Client_ID( Target ), the_modes );
 230                 }
 231                 Log( LOG_DEBUG, "User \"%s\": Mode change, now \"%s\".", Client_Mask( Target ), Client_Modes( Target ));
 232         }
 233
 234         IRC_SetPenalty( Client, 1 );
 235         return ok;
 236 } /* Client_Mode */
 237
 238
 239 LOCAL bool
 240 Channel_Mode( CLIENT *Client, REQUEST *Req, CLIENT *Origin, CHANNEL *Channel )
 241 {
 242         /* Handle channel and channel-user modes */
 243
 244         char the_modes[COMMAND_LEN], the_args[COMMAND_LEN], x[2], argadd[CLIENT_PASS_LEN], *mode_ptr;
 245         bool ok, set, modeok = false, skiponce, use_servermode = false;
 246         int mode_arg, arg_arg;
 247         CLIENT *client;
 248         long l;
 249         size_t len;
 250
 251         /* Mode request: let's answer it :-) */
 252         if( Req->argc == 1 )
 253         {
 254                 /* Member or not? -- That's the question! */
 255                 if( ! Channel_IsMemberOf( Channel, Origin )) return IRC_WriteStrClient( Origin, RPL_CHANNELMODEIS_MSG, Client_ID( Origin ), Channel_Name( Channel ), Channel_Modes( Channel ));
 256
 257                 /* The sender is a member: generate extended reply */
 258                 strlcpy( the_modes, Channel_Modes( Channel ), sizeof( the_modes ));
 259                 mode_ptr = the_modes;
 260                 strcpy( the_args, "" );
 261                 while( *mode_ptr )
 262                 {
 263                         switch( *mode_ptr )
 264                         {
 265                                 case 'l':
 266                                         snprintf( argadd, sizeof( argadd ), " %ld", Channel_MaxUsers( Channel ));
 267                                         strlcat( the_args, argadd, sizeof( the_args ));
 268                                         break;
 269                                 case 'k':
 270                                         strlcat( the_args, " ", sizeof( the_args ));
 271                                         strlcat( the_args, Channel_Key( Channel ), sizeof( the_args ));
 272                                         break;
 273                         }
 274                         mode_ptr++;
 275                 }
 276                 if( the_args[0] ) strlcat( the_modes, the_args, sizeof( the_modes ));
 277
 278                 return IRC_WriteStrClient( Origin, RPL_CHANNELMODEIS_MSG, Client_ID( Origin ), Channel_Name( Channel ), the_modes );
 279         }
 280
 281         /* Is the user allowed to change modes? */
 282         if( Client_Type( Client ) == CLIENT_USER )
 283         {
 284                 /* Is the originating user on that channel? */
 285                 if( ! Channel_IsMemberOf( Channel, Origin )) return IRC_WriteStrClient( Origin, ERR_NOTONCHANNEL_MSG, Client_ID( Origin ), Channel_Name( Channel ));
 286
 287                 /* Is he channel operator? */
 288                 if( strchr( Channel_UserModes( Channel, Origin ), 'o' )) modeok = true;
 289                 else if( Conf_OperCanMode )
 290                 {
 291                         /* IRC-Operators can use MODE as well */
 292                         if( Client_OperByMe( Origin )) {
 293                                 modeok = true;
 294                                 if ( Conf_OperServerMode ) use_servermode = true; /* Change Origin to Server */
 295                         }
 296                 }
 297         }
 298         else modeok = true;
 299
 300         mode_arg = 1;
 301         mode_ptr = Req->argv[mode_arg];
 302         if( Req->argc > mode_arg + 1 ) arg_arg = mode_arg + 1;
 303         else arg_arg = -1;
 304
 305         /* Initial state: set or unset modes? */
 306         skiponce = false;
 307         if( *mode_ptr == '-' ) set = false;
 308         else if( *mode_ptr == '+' ) set = true;
 309         else set = skiponce = true;
 310
 311         /* Prepare reply string */
 312         if( set ) strcpy( the_modes, "+" );
 313         else strcpy( the_modes, "-" );
 314         strcpy( the_args, " " );
 315
 316         x[1] = '\0';
 317         ok = CONNECTED;
 318         while( mode_ptr )
 319         {
 320                 if( ! skiponce ) mode_ptr++;
 321                 if( ! *mode_ptr )
 322                 {
 323                         /* Try next argument if there's any */
 324                         if( arg_arg > mode_arg ) mode_arg = arg_arg;
 325                         else mode_arg++;
 326                         if( mode_arg < Req->argc ) mode_ptr = Req->argv[mode_arg];
 327                         else break;
 328                         if( Req->argc > mode_arg + 1 ) arg_arg = mode_arg + 1;
 329                         else arg_arg = -1;
 330                 }
 331                 skiponce = false;
 332
 333                 switch( *mode_ptr )
 334                 {
 335                         case '+':
 336                         case '-':
 337                                 if((( *mode_ptr == '+' ) && ( ! set )) || (( *mode_ptr == '-' ) && ( set )))
 338                                 {
 339                                         /* Action modifier ("+"/"-") must be changed ... */
 340                                         len = strlen( the_modes ) - 1;
 341                                         if(( the_modes[len] == '+' ) || ( the_modes[len] == '-' ))
 342                                         {
 343                                                 /* Adjust last action modifier in result */
 344                                                 the_modes[len] = *mode_ptr;
 345                                         }
 346                                         else
 347                                         {
 348                                                 /* Append modifier character to result string */
 349                                                 x[0] = *mode_ptr;
 350                                                 strlcat( the_modes, x, sizeof( the_modes ));
 351                                         }
 352                                         if( *mode_ptr == '+' ) set = true;
 353                                         else set = false;
 354                                 }
 355                                 continue;
 356                 }
 357
 358                 /* Are there arguments left? */
 359                 if( arg_arg >= Req->argc ) arg_arg = -1;
 360
 361                 /* Validate modes */
 362                 x[0] = '\0';
 363                 argadd[0] = '\0';
 364                 client = NULL;
 365                 switch( *mode_ptr )
 366                 {
 367                         /* --- Channel modes --- */
 368
 369                         case 'i': /* Invite only */
 370                         case 'm': /* Moderated */
 371                         case 'n': /* Only members can write */
 372                         case 's': /* Secret channel */
 373                         case 't': /* Topic locked */
 374                                 if( modeok ) x[0] = *mode_ptr;
 375                                 else ok = IRC_WriteStrClient( Origin, ERR_CHANOPRIVSNEEDED_MSG, Client_ID( Origin ), Channel_Name( Channel ));
 376                                 break;
 377
 378                         case 'k': /* Channel key */
 379                                 if( ! set )
 380                                 {
 381                                         if( modeok ) x[0] = *mode_ptr;
 382                                         else ok = IRC_WriteStrClient( Origin, ERR_CHANOPRIVSNEEDED_MSG, Client_ID( Origin ), Channel_Name( Channel ));
 383                                         break;
 384                                 }
 385                                 if( arg_arg > mode_arg )
 386                                 {
 387                                         if( modeok )
 388                                         {
 389                                                 Channel_ModeDel( Channel, 'k' );
 390                                                 Channel_SetKey( Channel, Req->argv[arg_arg] );
 391                                                 strlcpy( argadd, Channel_Key( Channel ), sizeof( argadd ));
 392                                                 x[0] = *mode_ptr;
 393                                         }
 394                                         else ok = IRC_WriteStrClient( Origin, ERR_CHANOPRIVSNEEDED_MSG, Client_ID( Origin ), Channel_Name( Channel ));
 395                                         Req->argv[arg_arg][0] = '\0';
 396                                         arg_arg++;
 397                                 }
 398                                 else ok = IRC_WriteStrClient( Origin, ERR_NEEDMOREPARAMS_MSG, Client_ID( Origin ), Req->command );
 399                                 break;
 400
 401                         case 'l': /* Member limit */
 402                                 if( ! set )
 403                                 {
 404                                         if( modeok ) x[0] = *mode_ptr;
 405                                         else ok = IRC_WriteStrClient( Origin, ERR_CHANOPRIVSNEEDED_MSG, Client_ID( Origin ), Channel_Name( Channel ));
 406                                         break;
 407                                 }
 408                                 if( arg_arg > mode_arg )
 409                                 {
 410                                         if( modeok )
 411                                         {
 412                                                 l = atol( Req->argv[arg_arg] );
 413                                                 if( l > 0 && l < 0xFFFF )
 414                                                 {
 415                                                         Channel_ModeDel( Channel, 'l' );
 416                                                         Channel_SetMaxUsers( Channel, l );
 417                                                         snprintf( argadd, sizeof( argadd ), "%ld", l );
 418                                                         x[0] = *mode_ptr;
 419                                                 }
 420                                         }
 421                                         else ok = IRC_WriteStrClient( Origin, ERR_CHANOPRIVSNEEDED_MSG, Client_ID( Origin ), Channel_Name( Channel ));
 422                                         Req->argv[arg_arg][0] = '\0';
 423                                         arg_arg++;
 424                                 }
 425                                 else ok = IRC_WriteStrClient( Origin, ERR_NEEDMOREPARAMS_MSG, Client_ID( Origin ), Req->command );
 426                                 break;
 427
 428                         case 'P': /* Persistent channel */
 429                                 if( modeok )
 430                                 {
 431                                         if( set && ( ! Client_OperByMe( Client )))
 432                                         {
 433                                                 /* Only IRC operators are allowed to set P mode */
 434                                                 ok = IRC_WriteStrClient( Origin, ERR_NOPRIVILEGES_MSG, Client_ID( Origin ));
 435                                         }
 436                                         else x[0] = 'P';
 437                                 }
 438                                 else ok = IRC_WriteStrClient( Origin, ERR_CHANOPRIVSNEEDED_MSG, Client_ID( Origin ), Channel_Name( Channel ));
 439                                 break;
 440
 441                         /* --- Channel user modes --- */
 442
 443                         case 'o': /* Channel operator */
 444                         case 'v': /* Voice */
 445                                 if( arg_arg > mode_arg )
 446                                 {
 447                                         if( modeok )
 448                                         {
 449                                                 client = Client_Search( Req->argv[arg_arg] );
 450                                                 if( client ) x[0] = *mode_ptr;
 451                                                 else ok = IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->argv[arg_arg] );
 452                                         }
 453                                         else ok = IRC_WriteStrClient( Origin, ERR_CHANOPRIVSNEEDED_MSG, Client_ID( Origin ), Channel_Name( Channel ));
 454                                         Req->argv[arg_arg][0] = '\0';
 455                                         arg_arg++;
 456                                 }
 457                                 else ok = IRC_WriteStrClient( Origin, ERR_NEEDMOREPARAMS_MSG, Client_ID( Origin ), Req->command );
 458                                 break;
 459
 460                         /* --- Channel lists --- */
 461
 462                         case 'I': /* Invite lists */
 463                                 if( arg_arg > mode_arg )
 464                                 {
 465                                         /* modify list */
 466                                         if( modeok )
 467                                         {
 468                                                 if( set ) Add_Invite( Origin, Client, Channel, Req->argv[arg_arg] );
 469                                                 else Del_Invite( Origin, Client, Channel, Req->argv[arg_arg] );
 470                                         }
 471                                         else ok = IRC_WriteStrClient( Origin, ERR_CHANOPRIVSNEEDED_MSG, Client_ID( Origin ), Channel_Name( Channel ));
 472                                         Req->argv[arg_arg][0] = '\0';
 473                                         arg_arg++;
 474                                 }
 475                                 else Lists_ShowInvites( Origin, Channel );
 476                                 break;
 477
 478                         case 'b': /* Ban lists */
 479                                 if( arg_arg > mode_arg )
 480                                 {
 481                                         /* modify list */
 482                                         if( modeok )
 483                                         {
 484                                                 if( set ) Add_Ban( Origin, Client, Channel, Req->argv[arg_arg] );
 485                                                 else Del_Ban( Origin, Client, Channel, Req->argv[arg_arg] );
 486                                         }
 487                                         else ok = IRC_WriteStrClient( Origin, ERR_CHANOPRIVSNEEDED_MSG, Client_ID( Origin ), Channel_Name( Channel ));
 488                                         Req->argv[arg_arg][0] = '\0';
 489                                         arg_arg++;
 490                                 }
 491                                 else Lists_ShowBans( Origin, Channel );
 492                                 break;
 493
 494                         default:
 495                                 Log( LOG_DEBUG, "Unknown mode \"%c%c\" from \"%s\" on %s!?", set ? '+' : '-', *mode_ptr, Client_ID( Origin ), Channel_Name( Channel ));
 496                                 if( Client_Type( Client ) != CLIENT_SERVER ) ok = IRC_WriteStrClient( Origin, ERR_UMODEUNKNOWNFLAG2_MSG, Client_ID( Origin ), set ? '+' : '-', *mode_ptr );
 497                                 x[0] = '\0';
 498                                 goto chan_exit;
 499                 }
 500                 if( ! ok ) break;
 501
 502                 /* Is there a valid mode change? */
 503                 if( ! x[0] ) continue;
 504
 505                 /* Validate target client */
 506                 if( client && ( ! Channel_IsMemberOf( Channel, client )))
 507                 {
 508                         if( ! IRC_WriteStrClient( Origin, ERR_USERNOTINCHANNEL_MSG, Client_ID( Origin ), Client_ID( client ), Channel_Name( Channel ))) break;
 509                         continue;
 510                 }
 511
 512                 if( set )
 513                 {
 514                         /* Set mode */
 515                         if( client )
 516                         {
 517                                 /* Channel-User-Mode */
 518                                 if( Channel_UserModeAdd( Channel, client, x[0] ))
 519                                 {
 520                                         strlcat( the_args, Client_ID( client ), sizeof( the_args ));
 521                                         strlcat( the_args, " ", sizeof( the_args ));
 522                                         strlcat( the_modes, x, sizeof( the_modes ));
 523                                         Log( LOG_DEBUG, "User \"%s\": Mode change on %s, now \"%s\"", Client_Mask( client ), Channel_Name( Channel ), Channel_UserModes( Channel, client ));
 524                                 }
 525                         }
 526                         else
 527                         {
 528                                 /* Channel-Mode */
 529                                 if( Channel_ModeAdd( Channel, x[0] ))
 530                                 {
 531                                         strlcat( the_modes, x, sizeof( the_modes ));
 532                                         Log( LOG_DEBUG, "Channel %s: Mode change, now \"%s\".", Channel_Name( Channel ), Channel_Modes( Channel ));
 533                                 }
 534                         }
 535                 }
 536                 else
 537                 {
 538                         /* Unset mode */
 539                         if( client )
 540                         {
 541                                 /* Channel-User-Mode */
 542                                 if( Channel_UserModeDel( Channel, client, x[0] ))
 543                                 {
 544                                         strlcat( the_args, Client_ID( client ), sizeof( the_args ));
 545                                         strlcat( the_args, " ", sizeof( the_args ));
 546                                         strlcat( the_modes, x, sizeof( the_modes ));
 547                                         Log( LOG_DEBUG, "User \"%s\": Mode change on %s, now \"%s\"", Client_Mask( client ), Channel_Name( Channel ), Channel_UserModes( Channel, client ));
 548                                 }
 549                         }
 550                         else
 551                         {
 552                                 /* Channel-Mode */
 553                                 if( Channel_ModeDel( Channel, x[0] ))
 554                                 {
 555                                         strlcat( the_modes, x, sizeof( the_modes ));
 556                                         Log( LOG_DEBUG, "Channel %s: Mode change, now \"%s\".", Channel_Name( Channel ), Channel_Modes( Channel ));
 557                                 }
 558                         }
 559                 }
 560
 561                 /* Are there additional arguments to add? */
 562                 if( argadd[0] )
 563                 {
 564                         len = strlen( the_args ) - 1;
 565                         if( the_args[len] != ' ' ) strlcat( the_args, " ", sizeof( the_args ));
 566                         strlcat( the_args, argadd, sizeof( the_args ));
 567                 }
 568         }
 569 chan_exit:
 570
 571         /* Are there changed modes? */
 572         if( the_modes[1] )
 573         {
 574                 /* Clean up mode string */
 575                 len = strlen( the_modes ) - 1;
 576                 if(( the_modes[len] == '+' ) || ( the_modes[len] == '-' )) the_modes[len] = '\0';
 577
 578                 /* Clean up argument string if there are none */
 579                 if( ! the_args[1] ) the_args[0] = '\0';
 580
 581                 if( Client_Type( Client ) == CLIENT_SERVER )
 582                 {
 583                         /* Forward mode changes to channel users and other servers */
 584                         IRC_WriteStrServersPrefix( Client, Origin, "MODE %s %s%s", Channel_Name( Channel ), the_modes, the_args );
 585                         IRC_WriteStrChannelPrefix( Client, Channel, Origin, false, "MODE %s %s%s", Channel_Name( Channel ), the_modes, the_args );
 586                 }
 587                 else
 588                 {
 589                         if ( use_servermode ) Origin = Client_ThisServer();
 590
 591                         /* Send reply to client and inform other servers and channel users */
 592                         ok = IRC_WriteStrClientPrefix( Client, Origin, "MODE %s %s%s", Channel_Name( Channel ), the_modes, the_args );
 593                         IRC_WriteStrServersPrefix( Client, Origin, "MODE %s %s%s", Channel_Name( Channel ), the_modes, the_args );
 594                         IRC_WriteStrChannelPrefix( Client, Channel, Origin, false, "MODE %s %s%s", Channel_Name( Channel ), the_modes, the_args );
 595                 }
 596         }
 597
 598         IRC_SetPenalty( Client, 1 );
 599         return CONNECTED;
 600 } /* Channel_Mode */
 601
 602
 603 GLOBAL bool
 604 IRC_AWAY( CLIENT *Client, REQUEST *Req )
 605 {
 606         assert( Client != NULL );
 607         assert( Req != NULL );
 608
 609         /* Falsche Anzahl Parameter? */
 610         if( Req->argc > 1 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
 611
 612         if(( Req->argc == 1 ) && (Req->argv[0][0] ))
 613         {
 614                 /* AWAY setzen */
 615                 Client_SetAway( Client, Req->argv[0] );
 616                 Client_ModeAdd( Client, 'a' );
 617                 IRC_WriteStrServersPrefix( Client, Client, "MODE %s :+a", Client_ID( Client ));
 618                 return IRC_WriteStrClient( Client, RPL_NOWAWAY_MSG, Client_ID( Client ));
 619         }
 620         else
 621         {
 622                 /* AWAY loeschen */
 623                 Client_ModeDel( Client, 'a' );
 624                 IRC_WriteStrServersPrefix( Client, Client, "MODE %s :-a", Client_ID( Client ));
 625                 return IRC_WriteStrClient( Client, RPL_UNAWAY_MSG, Client_ID( Client ));
 626         }
 627 } /* IRC_AWAY */
 628
 629
 630 LOCAL bool
 631 Add_Invite( CLIENT *Prefix, CLIENT *Client, CHANNEL *Channel, char *Pattern )
 632 {
 633         char *mask;
 634         bool already;
 635
 636         assert( Client != NULL );
 637         assert( Channel != NULL );
 638         assert( Pattern != NULL );
 639
 640         mask = Lists_MakeMask( Pattern );
 641
 642         already = Lists_IsInviteEntry( mask, Channel );
 643
 644         if( ! Lists_AddInvited( mask, Channel, false )) return CONNECTED;
 645
 646         if(( Client_Type( Prefix ) == CLIENT_SERVER ) && ( already == true)) return CONNECTED;
 647
 648         return Send_ListChange( "+I", Prefix, Client, Channel, mask );
 649 } /* Add_Invite */
 650
 651
 652 LOCAL bool
 653 Add_Ban( CLIENT *Prefix, CLIENT *Client, CHANNEL *Channel, char *Pattern )
 654 {
 655         char *mask;
 656         bool already;
 657
 658         assert( Client != NULL );
 659         assert( Channel != NULL );
 660         assert( Pattern != NULL );
 661
 662         mask = Lists_MakeMask( Pattern );
 663
 664         already = Lists_IsBanEntry( mask, Channel );
 665
 666         if( ! Lists_AddBanned( mask, Channel )) return CONNECTED;
 667
 668         if(( Client_Type( Prefix ) == CLIENT_SERVER ) && ( already == true)) return CONNECTED;
 669
 670         return Send_ListChange( "+b", Prefix, Client, Channel, mask );
 671 } /* Add_Ban */
 672
 673
 674 LOCAL bool
 675 Del_Invite( CLIENT *Prefix, CLIENT *Client, CHANNEL *Channel, char *Pattern )
 676 {
 677         char *mask;
 678
 679         assert( Client != NULL );
 680         assert( Channel != NULL );
 681         assert( Pattern != NULL );
 682
 683         mask = Lists_MakeMask( Pattern );
 684         Lists_DelInvited( mask, Channel );
 685         return Send_ListChange( "-I", Prefix, Client, Channel, mask );
 686 } /* Del_Invite */
 687
 688
 689 LOCAL bool
 690 Del_Ban( CLIENT *Prefix, CLIENT *Client, CHANNEL *Channel, char *Pattern )
 691 {
 692         char *mask;
 693
 694         assert( Client != NULL );
 695         assert( Channel != NULL );
 696         assert( Pattern != NULL );
 697
 698         mask = Lists_MakeMask( Pattern );
 699         Lists_DelBanned( mask, Channel );
 700         return Send_ListChange( "-b", Prefix, Client, Channel, mask );
 701 } /* Del_Ban */
 702
 703
 704 LOCAL bool
 705 Send_ListChange( char *Mode, CLIENT *Prefix, CLIENT *Client, CHANNEL *Channel, char *Mask )
 706 {
 707         /* Bestaetigung an Client schicken & andere Server sowie Channel-User informieren */
 708
 709         bool ok;
 710
 711         if( Client_Type( Client ) == CLIENT_USER )
 712         {
 713                 /* Bestaetigung an Client */
 714                 ok = IRC_WriteStrClientPrefix( Client, Prefix, "MODE %s %s %s", Channel_Name( Channel ), Mode, Mask );
 715         }
 716         else ok = true;
 717
 718         /* an andere Server */
 719         IRC_WriteStrServersPrefix( Client, Prefix, "MODE %s %s %s", Channel_Name( Channel ), Mode, Mask );
 720
 721         /* und lokale User im Channel */
 722         IRC_WriteStrChannelPrefix( Client, Channel, Prefix, false, "MODE %s %s %s", Channel_Name( Channel ), Mode, Mask );
 723
 724         return ok;
 725 } /* Send_ListChange */
 726
 727
 728 /* -eof- */