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 1.48 2006/12/07 17:57:20 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_Invite PARAMS(( CLIENT *Prefix, CLIENT *Client, CHANNEL *Channel, char *Pattern ));
  45 static bool Add_Ban PARAMS(( CLIENT *Prefix, CLIENT *Client, CHANNEL *Channel, char *Pattern ));
  46
  47 static bool Del_Invite PARAMS(( CLIENT *Prefix, CLIENT *Client, CHANNEL *Channel, char *Pattern ));
  48 static bool Del_Ban PARAMS(( CLIENT *Prefix, CLIENT *Client, CHANNEL *Channel, char *Pattern ));
  49
  50 static 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 = NULL; chan = NULL;
  75         if (Client_IsValidNick(Req->argv[0]))
  76                 cl = Client_Search(Req->argv[0]);
  77         if (Channel_IsValidName(Req->argv[0]))
  78                 chan = Channel_Search(Req->argv[0]);
  79
  80         if (cl)
  81                 return Client_Mode(Client, Req, origin, cl);
  82         if (chan)
  83                 return Channel_Mode(Client, Req, origin, chan);
  84
  85         /* No target found! */
  86         return IRC_WriteStrClient(Client, ERR_NOSUCHNICK_MSG,
  87                         Client_ID(Client), Req->argv[0]);
  88 } /* IRC_MODE */
  89
  90
  91 static bool
  92 Client_Mode( CLIENT *Client, REQUEST *Req, CLIENT *Origin, CLIENT *Target )
  93 {
  94         /* Handle client mode requests */
  95
  96         char the_modes[COMMAND_LEN], x[2], *mode_ptr;
  97         bool ok, set;
  98         int mode_arg;
  99         size_t len;
 100
 101         /* Is the client allowed to request or change the modes? */
 102         if( Client_Type( Client ) == CLIENT_USER )
 103         {
 104                 /* Users are only allowed to manipulate their own modes! */
 105                 if( Target != Client ) return IRC_WriteStrClient( Client, ERR_USERSDONTMATCH_MSG, Client_ID( Client ));
 106         }
 107
 108         /* Mode request: let's answer it :-) */
 109         if( Req->argc == 1 ) return IRC_WriteStrClient( Origin, RPL_UMODEIS_MSG, Client_ID( Origin ), Client_Modes( Target ));
 110
 111         mode_arg = 1;
 112         mode_ptr = Req->argv[mode_arg];
 113
 114         /* Initial state: set or unset modes? */
 115         if( *mode_ptr == '+' ) set = true;
 116         else if( *mode_ptr == '-' ) set = false;
 117         else return IRC_WriteStrClient( Origin, ERR_UMODEUNKNOWNFLAG_MSG, Client_ID( Origin ));
 118
 119         /* Prepare reply string */
 120         if( set ) strcpy( the_modes, "+" );
 121         else strcpy( the_modes, "-" );
 122
 123         x[1] = '\0';
 124         ok = CONNECTED;
 125         while( mode_ptr )
 126         {
 127                 mode_ptr++;
 128                 if( ! *mode_ptr )
 129                 {
 130                         /* Try next argument if there's any */
 131                         mode_arg++;
 132                         if( mode_arg < Req->argc ) mode_ptr = Req->argv[mode_arg];
 133                         else break;
 134                 }
 135
 136                 switch( *mode_ptr )
 137                 {
 138                         case '+':
 139                         case '-':
 140                                 if((( *mode_ptr == '+' ) && ( ! set )) || (( *mode_ptr == '-' ) && ( set )))
 141                                 {
 142                                         /* Action modifier ("+"/"-") must be changed ... */
 143                                         len = strlen( the_modes ) - 1;
 144                                         if(( the_modes[len] == '+' ) || ( the_modes[len] == '-' ))
 145                                         {
 146                                                 /* Adjust last action modifier in result */
 147                                                 the_modes[len] = *mode_ptr;
 148                                         }
 149                                         else
 150                                         {
 151                                                 /* Append modifier character to result string */
 152                                                 x[0] = *mode_ptr;
 153                                                 strlcat( the_modes, x, sizeof( the_modes ));
 154                                         }
 155                                         if( *mode_ptr == '+' ) set = true;
 156                                         else set = false;
 157                                 }
 158                                 continue;
 159                 }
 160
 161                 /* Validate modes */
 162                 x[0] = '\0';
 163                 switch( *mode_ptr )
 164                 {
 165                         case 'i': /* Invisible */
 166                         case 's': /* Server 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( CLIENT *Client, REQUEST *Req, CLIENT *Origin, CHANNEL *Channel )
 246 {
 247         /* Handle channel and channel-user modes */
 248
 249         char the_modes[COMMAND_LEN], the_args[COMMAND_LEN], x[2], argadd[CLIENT_PASS_LEN], *mode_ptr;
 250         bool ok, set, modeok = false, skiponce, use_servermode = false;
 251         int mode_arg, arg_arg;
 252         CLIENT *client;
 253         long l;
 254         size_t len;
 255
 256         /* Mode request: let's answer it :-) */
 257         if( Req->argc == 1 )
 258         {
 259                 /* Member or not? -- That's the question! */
 260                 if( ! Channel_IsMemberOf( Channel, Origin )) return IRC_WriteStrClient( Origin, RPL_CHANNELMODEIS_MSG, Client_ID( Origin ), Channel_Name( Channel ), Channel_Modes( Channel ));
 261
 262                 /* The sender is a member: generate extended reply */
 263                 strlcpy( the_modes, Channel_Modes( Channel ), sizeof( the_modes ));
 264                 mode_ptr = the_modes;
 265                 the_args[0] = '\0';
 266                 while( *mode_ptr )
 267                 {
 268                         switch( *mode_ptr )
 269                         {
 270                                 case 'l':
 271                                         snprintf( argadd, sizeof( argadd ), " %lu", Channel_MaxUsers( Channel ));
 272                                         strlcat( the_args, argadd, sizeof( the_args ));
 273                                         break;
 274                                 case 'k':
 275                                         strlcat( the_args, " ", sizeof( the_args ));
 276                                         strlcat( the_args, Channel_Key( Channel ), sizeof( the_args ));
 277                                         break;
 278                         }
 279                         mode_ptr++;
 280                 }
 281                 if( the_args[0] ) strlcat( the_modes, the_args, sizeof( the_modes ));
 282
 283                 return IRC_WriteStrClient( Origin, RPL_CHANNELMODEIS_MSG, Client_ID( Origin ), Channel_Name( Channel ), the_modes );
 284         }
 285
 286         /* Is the user allowed to change modes? */
 287         if( Client_Type( Client ) == CLIENT_USER )
 288         {
 289                 /* Is the originating user on that channel? */
 290                 if( ! Channel_IsMemberOf( Channel, Origin )) return IRC_WriteStrClient( Origin, ERR_NOTONCHANNEL_MSG, Client_ID( Origin ), Channel_Name( Channel ));
 291
 292                 /* Is he channel operator? */
 293                 if( strchr( Channel_UserModes( Channel, Origin ), 'o' )) modeok = true;
 294                 else if( Conf_OperCanMode )
 295                 {
 296                         /* IRC-Operators can use MODE as well */
 297                         if( Client_OperByMe( Origin )) {
 298                                 modeok = true;
 299                                 if ( Conf_OperServerMode ) use_servermode = true; /* Change Origin to Server */
 300                         }
 301                 }
 302         }
 303         else modeok = true;
 304
 305         mode_arg = 1;
 306         mode_ptr = Req->argv[mode_arg];
 307         if( Req->argc > mode_arg + 1 ) arg_arg = mode_arg + 1;
 308         else arg_arg = -1;
 309
 310         /* Initial state: set or unset modes? */
 311         skiponce = false;
 312         if( *mode_ptr == '-' ) set = false;
 313         else if( *mode_ptr == '+' ) set = true;
 314         else set = skiponce = true;
 315
 316         /* Prepare reply string */
 317         if( set ) strcpy( the_modes, "+" );
 318         else strcpy( the_modes, "-" );
 319         strcpy( the_args, " " );
 320
 321         x[1] = '\0';
 322         ok = CONNECTED;
 323         while( mode_ptr )
 324         {
 325                 if( ! skiponce ) mode_ptr++;
 326                 if( ! *mode_ptr )
 327                 {
 328                         /* Try next argument if there's any */
 329                         if( arg_arg > mode_arg ) mode_arg = arg_arg;
 330                         else mode_arg++;
 331                         if( mode_arg < Req->argc ) mode_ptr = Req->argv[mode_arg];
 332                         else break;
 333                         if( Req->argc > mode_arg + 1 ) arg_arg = mode_arg + 1;
 334                         else arg_arg = -1;
 335                 }
 336                 skiponce = false;
 337
 338                 switch( *mode_ptr )
 339                 {
 340                         case '+':
 341                         case '-':
 342                                 if((( *mode_ptr == '+' ) && ( ! set )) || (( *mode_ptr == '-' ) && ( set )))
 343                                 {
 344                                         /* Action modifier ("+"/"-") must be changed ... */
 345                                         len = strlen( the_modes ) - 1;
 346                                         if(( the_modes[len] == '+' ) || ( the_modes[len] == '-' ))
 347                                         {
 348                                                 /* Adjust last action modifier in result */
 349                                                 the_modes[len] = *mode_ptr;
 350                                         }
 351                                         else
 352                                         {
 353                                                 /* Append modifier character to result string */
 354                                                 x[0] = *mode_ptr;
 355                                                 strlcat( the_modes, x, sizeof( the_modes ));
 356                                         }
 357                                         if( *mode_ptr == '+' ) set = true;
 358                                         else set = false;
 359                                 }
 360                                 continue;
 361                 }
 362
 363                 /* Are there arguments left? */
 364                 if( arg_arg >= Req->argc ) arg_arg = -1;
 365
 366                 /* Validate modes */
 367                 x[0] = '\0';
 368                 argadd[0] = '\0';
 369                 client = NULL;
 370                 switch( *mode_ptr )
 371                 {
 372                         /* --- Channel modes --- */
 373
 374                         case 'i': /* Invite only */
 375                         case 'm': /* Moderated */
 376                         case 'n': /* Only members can write */
 377                         case 's': /* Secret channel */
 378                         case 't': /* Topic locked */
 379                                 if( modeok ) x[0] = *mode_ptr;
 380                                 else ok = IRC_WriteStrClient( Origin, ERR_CHANOPRIVSNEEDED_MSG, Client_ID( Origin ), Channel_Name( Channel ));
 381                                 break;
 382
 383                         case 'k': /* Channel key */
 384                                 if( ! set )
 385                                 {
 386                                         if( modeok ) x[0] = *mode_ptr;
 387                                         else ok = IRC_WriteStrClient( Origin, ERR_CHANOPRIVSNEEDED_MSG, Client_ID( Origin ), Channel_Name( Channel ));
 388                                         break;
 389                                 }
 390                                 if( arg_arg > mode_arg )
 391                                 {
 392                                         if( modeok )
 393                                         {
 394                                                 Channel_ModeDel( Channel, 'k' );
 395                                                 Channel_SetKey( Channel, Req->argv[arg_arg] );
 396                                                 strlcpy( argadd, Channel_Key( Channel ), sizeof( argadd ));
 397                                                 x[0] = *mode_ptr;
 398                                         }
 399                                         else ok = IRC_WriteStrClient( Origin, ERR_CHANOPRIVSNEEDED_MSG, Client_ID( Origin ), Channel_Name( Channel ));
 400                                         Req->argv[arg_arg][0] = '\0';
 401                                         arg_arg++;
 402                                 }
 403                                 else ok = IRC_WriteStrClient( Origin, ERR_NEEDMOREPARAMS_MSG, Client_ID( Origin ), Req->command );
 404                                 break;
 405
 406                         case 'l': /* Member limit */
 407                                 if( ! set )
 408                                 {
 409                                         if( modeok ) x[0] = *mode_ptr;
 410                                         else ok = IRC_WriteStrClient( Origin, ERR_CHANOPRIVSNEEDED_MSG, Client_ID( Origin ), Channel_Name( Channel ));
 411                                         break;
 412                                 }
 413                                 if( arg_arg > mode_arg )
 414                                 {
 415                                         if( modeok )
 416                                         {
 417                                                 l = atol( Req->argv[arg_arg] );
 418                                                 if( l > 0 && l < 0xFFFF )
 419                                                 {
 420                                                         Channel_ModeDel( Channel, 'l' );
 421                                                         Channel_SetMaxUsers( Channel, l );
 422                                                         snprintf( argadd, sizeof( argadd ), "%ld", l );
 423                                                         x[0] = *mode_ptr;
 424                                                 }
 425                                         }
 426                                         else ok = IRC_WriteStrClient( Origin, ERR_CHANOPRIVSNEEDED_MSG, Client_ID( Origin ), Channel_Name( Channel ));
 427                                         Req->argv[arg_arg][0] = '\0';
 428                                         arg_arg++;
 429                                 }
 430                                 else ok = IRC_WriteStrClient( Origin, ERR_NEEDMOREPARAMS_MSG, Client_ID( Origin ), Req->command );
 431                                 break;
 432
 433                         case 'P': /* Persistent channel */
 434                                 if( modeok )
 435                                 {
 436                                         if( set && ( ! Client_OperByMe( Client )))
 437                                         {
 438                                                 /* Only IRC operators are allowed to set P mode */
 439                                                 ok = IRC_WriteStrClient( Origin, ERR_NOPRIVILEGES_MSG, Client_ID( Origin ));
 440                                         }
 441                                         else x[0] = 'P';
 442                                 }
 443                                 else ok = IRC_WriteStrClient( Origin, ERR_CHANOPRIVSNEEDED_MSG, Client_ID( Origin ), Channel_Name( Channel ));
 444                                 break;
 445
 446                         /* --- Channel user modes --- */
 447
 448                         case 'o': /* Channel operator */
 449                         case 'v': /* Voice */
 450                                 if( arg_arg > mode_arg )
 451                                 {
 452                                         if( modeok )
 453                                         {
 454                                                 client = Client_Search( Req->argv[arg_arg] );
 455                                                 if( client ) x[0] = *mode_ptr;
 456                                                 else ok = IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->argv[arg_arg] );
 457                                         }
 458                                         else ok = IRC_WriteStrClient( Origin, ERR_CHANOPRIVSNEEDED_MSG, Client_ID( Origin ), Channel_Name( Channel ));
 459                                         Req->argv[arg_arg][0] = '\0';
 460                                         arg_arg++;
 461                                 }
 462                                 else ok = IRC_WriteStrClient( Origin, ERR_NEEDMOREPARAMS_MSG, Client_ID( Origin ), Req->command );
 463                                 break;
 464
 465                         /* --- Channel lists --- */
 466
 467                         case 'I': /* Invite lists */
 468                                 if( arg_arg > mode_arg )
 469                                 {
 470                                         /* modify list */
 471                                         if( modeok )
 472                                         {
 473                                                 if( set ) Add_Invite( Origin, Client, Channel, Req->argv[arg_arg] );
 474                                                 else Del_Invite( Origin, Client, Channel, Req->argv[arg_arg] );
 475                                         }
 476                                         else ok = IRC_WriteStrClient( Origin, ERR_CHANOPRIVSNEEDED_MSG, Client_ID( Origin ), Channel_Name( Channel ));
 477                                         Req->argv[arg_arg][0] = '\0';
 478                                         arg_arg++;
 479                                 }
 480                                 else Channel_ShowInvites( Origin, Channel );
 481                                 break;
 482
 483                         case 'b': /* Ban lists */
 484                                 if( arg_arg > mode_arg )
 485                                 {
 486                                         /* modify list */
 487                                         if( modeok )
 488                                         {
 489                                                 if( set ) Add_Ban( Origin, Client, Channel, Req->argv[arg_arg] );
 490                                                 else Del_Ban( Origin, Client, Channel, Req->argv[arg_arg] );
 491                                         }
 492                                         else ok = IRC_WriteStrClient( Origin, ERR_CHANOPRIVSNEEDED_MSG, Client_ID( Origin ), Channel_Name( Channel ));
 493                                         Req->argv[arg_arg][0] = '\0';
 494                                         arg_arg++;
 495                                 }
 496                                 else Channel_ShowBans( Origin, Channel );
 497                                 break;
 498
 499                         default:
 500                                 Log( LOG_DEBUG, "Unknown mode \"%c%c\" from \"%s\" on %s!?", set ? '+' : '-', *mode_ptr, Client_ID( Origin ), Channel_Name( Channel ));
 501                                 if( Client_Type( Client ) != CLIENT_SERVER ) ok = IRC_WriteStrClient( Origin, ERR_UMODEUNKNOWNFLAG2_MSG, Client_ID( Origin ), set ? '+' : '-', *mode_ptr );
 502                                 x[0] = '\0';
 503                                 goto chan_exit;
 504                 }
 505                 if( ! ok ) break;
 506
 507                 /* Is there a valid mode change? */
 508                 if( ! x[0] ) continue;
 509
 510                 /* Validate target client */
 511                 if( client && ( ! Channel_IsMemberOf( Channel, client )))
 512                 {
 513                         if( ! IRC_WriteStrClient( Origin, ERR_USERNOTINCHANNEL_MSG, Client_ID( Origin ), Client_ID( client ), Channel_Name( Channel ))) break;
 514                         continue;
 515                 }
 516
 517                 if( set )
 518                 {
 519                         /* Set mode */
 520                         if( client )
 521                         {
 522                                 /* Channel-User-Mode */
 523                                 if( Channel_UserModeAdd( Channel, client, x[0] ))
 524                                 {
 525                                         strlcat( the_args, Client_ID( client ), sizeof( the_args ));
 526                                         strlcat( the_args, " ", sizeof( the_args ));
 527                                         strlcat( the_modes, x, sizeof( the_modes ));
 528                                         Log( LOG_DEBUG, "User \"%s\": Mode change on %s, now \"%s\"", Client_Mask( client ), Channel_Name( Channel ), Channel_UserModes( Channel, client ));
 529                                 }
 530                         }
 531                         else
 532                         {
 533                                 /* Channel-Mode */
 534                                 if( Channel_ModeAdd( Channel, x[0] ))
 535                                 {
 536                                         strlcat( the_modes, x, sizeof( the_modes ));
 537                                         Log( LOG_DEBUG, "Channel %s: Mode change, now \"%s\".", Channel_Name( Channel ), Channel_Modes( Channel ));
 538                                 }
 539                         }
 540                 }
 541                 else
 542                 {
 543                         /* Unset mode */
 544                         if( client )
 545                         {
 546                                 /* Channel-User-Mode */
 547                                 if( Channel_UserModeDel( Channel, client, x[0] ))
 548                                 {
 549                                         strlcat( the_args, Client_ID( client ), sizeof( the_args ));
 550                                         strlcat( the_args, " ", sizeof( the_args ));
 551                                         strlcat( the_modes, x, sizeof( the_modes ));
 552                                         Log( LOG_DEBUG, "User \"%s\": Mode change on %s, now \"%s\"", Client_Mask( client ), Channel_Name( Channel ), Channel_UserModes( Channel, client ));
 553                                 }
 554                         }
 555                         else
 556                         {
 557                                 /* Channel-Mode */
 558                                 if( Channel_ModeDel( Channel, x[0] ))
 559                                 {
 560                                         strlcat( the_modes, x, sizeof( the_modes ));
 561                                         Log( LOG_DEBUG, "Channel %s: Mode change, now \"%s\".", Channel_Name( Channel ), Channel_Modes( Channel ));
 562                                 }
 563                         }
 564                 }
 565
 566                 /* Are there additional arguments to add? */
 567                 if( argadd[0] )
 568                 {
 569                         len = strlen( the_args ) - 1;
 570                         if( the_args[len] != ' ' ) strlcat( the_args, " ", sizeof( the_args ));
 571                         strlcat( the_args, argadd, sizeof( the_args ));
 572                 }
 573         }
 574 chan_exit:
 575
 576         /* Are there changed modes? */
 577         if( the_modes[1] )
 578         {
 579                 /* Clean up mode string */
 580                 len = strlen( the_modes ) - 1;
 581                 if(( the_modes[len] == '+' ) || ( the_modes[len] == '-' )) the_modes[len] = '\0';
 582
 583                 /* Clean up argument string if there are none */
 584                 if( ! the_args[1] ) the_args[0] = '\0';
 585
 586                 if( Client_Type( Client ) == CLIENT_SERVER )
 587                 {
 588                         /* Forward mode changes to channel users and other servers */
 589                         IRC_WriteStrServersPrefix( Client, Origin, "MODE %s %s%s", Channel_Name( Channel ), the_modes, the_args );
 590                         IRC_WriteStrChannelPrefix( Client, Channel, Origin, false, "MODE %s %s%s", Channel_Name( Channel ), the_modes, the_args );
 591                 }
 592                 else
 593                 {
 594                         if ( use_servermode ) Origin = Client_ThisServer();
 595
 596                         /* Send reply to client and inform other servers and channel users */
 597                         ok = IRC_WriteStrClientPrefix( Client, Origin, "MODE %s %s%s", Channel_Name( Channel ), the_modes, the_args );
 598                         IRC_WriteStrServersPrefix( Client, Origin, "MODE %s %s%s", Channel_Name( Channel ), the_modes, the_args );
 599                         IRC_WriteStrChannelPrefix( Client, Channel, Origin, false, "MODE %s %s%s", Channel_Name( Channel ), the_modes, the_args );
 600                 }
 601         }
 602
 603         IRC_SetPenalty( Client, 1 );
 604         return CONNECTED;
 605 } /* Channel_Mode */
 606
 607
 608 GLOBAL bool
 609 IRC_AWAY( CLIENT *Client, REQUEST *Req )
 610 {
 611         assert( Client != NULL );
 612         assert( Req != NULL );
 613
 614         /* Falsche Anzahl Parameter? */
 615         if( Req->argc > 1 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
 616
 617         if(( Req->argc == 1 ) && (Req->argv[0][0] ))
 618         {
 619                 /* AWAY setzen */
 620                 Client_SetAway( Client, Req->argv[0] );
 621                 Client_ModeAdd( Client, 'a' );
 622                 IRC_WriteStrServersPrefix( Client, Client, "MODE %s :+a", Client_ID( Client ));
 623                 return IRC_WriteStrClient( Client, RPL_NOWAWAY_MSG, Client_ID( Client ));
 624         }
 625         else
 626         {
 627                 /* AWAY loeschen */
 628                 Client_ModeDel( Client, 'a' );
 629                 IRC_WriteStrServersPrefix( Client, Client, "MODE %s :-a", Client_ID( Client ));
 630                 return IRC_WriteStrClient( Client, RPL_UNAWAY_MSG, Client_ID( Client ));
 631         }
 632 } /* IRC_AWAY */
 633
 634
 635 static bool
 636 Add_Invite( CLIENT *Prefix, CLIENT *Client, CHANNEL *Channel, char *Pattern )
 637 {
 638         char *mask;
 639         bool already;
 640
 641         assert( Client != NULL );
 642         assert( Channel != NULL );
 643         assert( Pattern != NULL );
 644
 645         mask = Lists_MakeMask( Pattern );
 646
 647         already = Lists_CheckDupeMask(Channel_GetListInvites(Channel), mask );
 648         if (!already) {
 649                 if( ! Channel_AddInvite(Channel, mask, false ))
 650                         return CONNECTED;
 651         }
 652         if ( already && ( Client_Type( Prefix ) == CLIENT_SERVER ))
 653                 return CONNECTED;
 654
 655         return Send_ListChange( "+I", Prefix, Client, Channel, mask );
 656 } /* Add_Invite */
 657
 658
 659 static bool
 660 Add_Ban( CLIENT *Prefix, CLIENT *Client, CHANNEL *Channel, char *Pattern )
 661 {
 662         char *mask;
 663         bool already;
 664
 665         assert( Client != NULL );
 666         assert( Channel != NULL );
 667         assert( Pattern != NULL );
 668
 669         mask = Lists_MakeMask( Pattern );
 670
 671         already = Lists_CheckDupeMask(Channel_GetListBans(Channel), mask );
 672         if (!already) {
 673                 if( ! Channel_AddBan(Channel, mask))
 674                         return CONNECTED;
 675         }
 676         if ( already && ( Client_Type( Prefix ) == CLIENT_SERVER ))
 677                 return CONNECTED;
 678
 679         return Send_ListChange( "+b", Prefix, Client, Channel, mask );
 680 } /* Add_Ban */
 681
 682
 683 static bool
 684 Del_Invite( CLIENT *Prefix, CLIENT *Client, CHANNEL *Channel, char *Pattern )
 685 {
 686         char *mask;
 687
 688         assert( Client != NULL );
 689         assert( Channel != NULL );
 690         assert( Pattern != NULL );
 691
 692         mask = Lists_MakeMask( Pattern );
 693         Lists_Del(Channel_GetListInvites(Channel), mask);
 694         return Send_ListChange( "-I", Prefix, Client, Channel, mask );
 695 } /* Del_Invite */
 696
 697
 698 static bool
 699 Del_Ban( CLIENT *Prefix, CLIENT *Client, CHANNEL *Channel, char *Pattern )
 700 {
 701         char *mask;
 702
 703         assert( Client != NULL );
 704         assert( Channel != NULL );
 705         assert( Pattern != NULL );
 706
 707         mask = Lists_MakeMask( Pattern );
 708         Lists_Del(Channel_GetListBans(Channel), mask);
 709         return Send_ListChange( "-b", Prefix, Client, Channel, mask );
 710 } /* Del_Ban */
 711
 712
 713 static bool
 714 Send_ListChange( char *Mode, CLIENT *Prefix, CLIENT *Client, CHANNEL *Channel, char *Mask )
 715 {
 716         /* Bestaetigung an Client schicken & andere Server sowie Channel-User informieren */
 717
 718         bool ok;
 719
 720         if( Client_Type( Client ) == CLIENT_USER )
 721         {
 722                 /* Bestaetigung an Client */
 723                 ok = IRC_WriteStrClientPrefix( Client, Prefix, "MODE %s %s %s", Channel_Name( Channel ), Mode, Mask );
 724         }
 725         else ok = true;
 726
 727         /* an andere Server */
 728         IRC_WriteStrServersPrefix( Client, Prefix, "MODE %s %s %s", Channel_Name( Channel ), Mode, Mask );
 729
 730         /* und lokale User im Channel */
 731         IRC_WriteStrChannelPrefix( Client, Channel, Prefix, false, "MODE %s %s %s", Channel_Name( Channel ), Mode, Mask );
 732
 733         return ok;
 734 } /* Send_ListChange */
 735
 736
 737 /* -eof- */