src/ngircd/irc-oper.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 operator commands
  12  */
  13
  14
  15 #include "portab.h"
  16
  17 #include "imp.h"
  18 #include <assert.h>
  19 #include <stdlib.h>
  20 #include <string.h>
  21
  22 #include "ngircd.h"
  23 #include "resolve.h"
  24 #include "conn-func.h"
  25 #include "conf.h"
  26 #include "client.h"
  27 #include "channel.h"
  28 #include "irc-write.h"
  29 #include "log.h"
  30 #include "match.h"
  31 #include "messages.h"
  32 #include "parse.h"
  33
  34 #include <exp.h>
  35 #include "irc-oper.h"
  36
  37
  38 /**
  39  * Handle invalid received OPER command.
  40  * Log OPER attempt and send error message to client.
  41  */
  42 static bool
  43 Bad_OperPass(CLIENT *Client, char *errtoken, char *errmsg)
  44 {
  45         Log(LOG_WARNING, "Got invalid OPER from \"%s\": \"%s\" -- %s",
  46             Client_Mask(Client), errtoken, errmsg);
  47         IRC_SetPenalty(Client, 3);
  48         return IRC_WriteStrClient(Client, ERR_PASSWDMISMATCH_MSG,
  49                                   Client_ID(Client));
  50 } /* Bad_OperPass */
  51
  52
  53 GLOBAL bool
  54 IRC_OPER( CLIENT *Client, REQUEST *Req )
  55 {
  56         unsigned int i;
  57
  58         assert( Client != NULL );
  59         assert( Req != NULL );
  60
  61         if( Req->argc != 2 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
  62
  63         for( i = 0; i < Conf_Oper_Count; i++)
  64         {
  65                 if( Conf_Oper[i].name[0] && Conf_Oper[i].pwd[0] && ( strcmp( Conf_Oper[i].name, Req->argv[0] ) == 0 )) break;
  66         }
  67         if( i >= Conf_Oper_Count )
  68                 return Bad_OperPass(Client, Req->argv[0], "not configured");
  69
  70         if( strcmp( Conf_Oper[i].pwd, Req->argv[1] ) != 0 )
  71                 return Bad_OperPass(Client, Conf_Oper[i].name, "bad password");
  72
  73         if( Conf_Oper[i].mask && (! Match( Conf_Oper[i].mask, Client_Mask( Client ) )))
  74                 return Bad_OperPass(Client, Conf_Oper[i].mask, "hostmask check failed" );
  75
  76         if( ! Client_HasMode( Client, 'o' ))
  77         {
  78                 Client_ModeAdd( Client, 'o' );
  79                 if( ! IRC_WriteStrClient( Client, "MODE %s :+o", Client_ID( Client ))) return DISCONNECTED;
  80                 IRC_WriteStrServersPrefix( NULL, Client, "MODE %s :+o", Client_ID( Client ));
  81         }
  82
  83         if( ! Client_OperByMe( Client )) Log( LOG_NOTICE|LOG_snotice, "Got valid OPER from \"%s\", user is an IRC operator now.", Client_Mask( Client ));
  84
  85         Client_SetOperByMe( Client, true);
  86         return IRC_WriteStrClient( Client, RPL_YOUREOPER_MSG, Client_ID( Client ));
  87 } /* IRC_OPER */
  88
  89
  90 GLOBAL bool
  91 IRC_DIE(CLIENT * Client, REQUEST * Req)
  92 {
  93         /* Shut down server */
  94
  95         CONN_ID c;
  96         CLIENT *cl;
  97
  98         assert(Client != NULL);
  99         assert(Req != NULL);
 100
 101         /* Not a local IRC operator? */
 102         if ((!Client_HasMode(Client, 'o')) || (!Client_OperByMe(Client)))
 103                 return IRC_WriteStrClient(Client, ERR_NOPRIVILEGES_MSG,
 104                                           Client_ID(Client));
 105
 106         /* Bad number of parameters? */
 107 #ifdef STRICT_RFC
 108         if (Req->argc != 0)
 109 #else
 110         if (Req->argc > 1)
 111 #endif
 112                 return IRC_WriteStrClient(Client, ERR_NEEDMOREPARAMS_MSG,
 113                                           Client_ID(Client), Req->command);
 114
 115         /* Is a message given? */
 116         if (Req->argc > 0) {
 117                 c = Conn_First();
 118                 while (c != NONE) {
 119                         cl = Conn_GetClient(c);
 120                         if (Client_Type(cl) == CLIENT_USER)
 121                                 IRC_WriteStrClient(cl, "NOTICE %s :%s",
 122                                                 Client_ID(cl), Req->argv[0]);
 123                         c = Conn_Next(c);
 124                 }
 125         }
 126
 127         Log(LOG_NOTICE | LOG_snotice, "Got DIE command from \"%s\" ...",
 128             Client_Mask(Client));
 129         NGIRCd_SignalQuit = true;
 130
 131         return CONNECTED;
 132 } /* IRC_DIE */
 133
 134
 135 GLOBAL bool
 136 IRC_REHASH( CLIENT *Client, REQUEST *Req )
 137 {
 138         /* Reload configuration file */
 139
 140         assert( Client != NULL );
 141         assert( Req != NULL );
 142
 143         /* Not a local IRC operator? */
 144         if(( ! Client_HasMode( Client, 'o' )) || ( ! Client_OperByMe( Client ))) return IRC_WriteStrClient( Client, ERR_NOPRIVILEGES_MSG, Client_ID( Client ));
 145
 146         /* Bad number of parameters? */
 147         if( Req->argc != 0 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
 148
 149         Log( LOG_NOTICE|LOG_snotice, "Got REHASH command from \"%s\" ...", Client_Mask( Client ));
 150         NGIRCd_SignalRehash = true;
 151
 152         return CONNECTED;
 153 } /* IRC_REHASH */
 154
 155
 156 GLOBAL bool
 157 IRC_RESTART( CLIENT *Client, REQUEST *Req )
 158 {
 159         /* Restart IRC server (fork a new process) */
 160
 161         assert( Client != NULL );
 162         assert( Req != NULL );
 163
 164         /* Not a local IRC operator? */
 165         if(( ! Client_HasMode( Client, 'o' )) || ( ! Client_OperByMe( Client ))) return IRC_WriteStrClient( Client, ERR_NOPRIVILEGES_MSG, Client_ID( Client ));
 166
 167         /* Bad number of parameters? */
 168         if( Req->argc != 0 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
 169
 170         Log( LOG_NOTICE|LOG_snotice, "Got RESTART command from \"%s\" ...", Client_Mask( Client ));
 171         NGIRCd_SignalRestart = true;
 172         return CONNECTED;
 173 } /* IRC_RESTART */
 174
 175
 176 /**
 177  * Connect configured or new server.
 178  */
 179 GLOBAL bool
 180 IRC_CONNECT(CLIENT * Client, REQUEST * Req)
 181 {
 182
 183         assert(Client != NULL);
 184         assert(Req != NULL);
 185
 186         /* Not a local IRC operator? */
 187         if ((!Client_HasMode(Client, 'o')) || (!Client_OperByMe(Client)))
 188                 return IRC_WriteStrClient(Client, ERR_NOPRIVILEGES_MSG,
 189                                           Client_ID(Client));
 190
 191         /* Bad number of parameters? */
 192         if ((Req->argc != 1) && (Req->argc != 2) && (Req->argc != 5))
 193                 return IRC_WriteStrClient(Client, ERR_NEEDMOREPARAMS_MSG,
 194                                           Client_ID(Client), Req->command);
 195
 196         /* Invalid port number? */
 197         if ((Req->argc > 1) && atoi(Req->argv[1]) < 1)
 198                 return IRC_WriteStrClient(Client, ERR_NEEDMOREPARAMS_MSG,
 199                                           Client_ID(Client), Req->command);
 200
 201         Log(LOG_NOTICE | LOG_snotice,
 202             "Got CONNECT command from \"%s\" for \"%s\".", Client_Mask(Client),
 203             Req->argv[0]);
 204
 205         switch (Req->argc) {
 206         case 1:
 207                 if (!Conf_EnablePassiveServer(Req->argv[0]))
 208                         return IRC_WriteStrClient(Client, ERR_NOSUCHSERVER_MSG,
 209                                                   Client_ID(Client),
 210                                                   Req->argv[0]);
 211         break;
 212         case 2:
 213                 /* Connect configured server */
 214                 if (!Conf_EnableServer
 215                     (Req->argv[0], (UINT16) atoi(Req->argv[1])))
 216                         return IRC_WriteStrClient(Client, ERR_NOSUCHSERVER_MSG,
 217                                                   Client_ID(Client),
 218                                                   Req->argv[0]);
 219         break;
 220         default:
 221                 /* Add server */
 222                 if (!Conf_AddServer
 223                     (Req->argv[0], (UINT16) atoi(Req->argv[1]), Req->argv[2],
 224                      Req->argv[3], Req->argv[4]))
 225                         return IRC_WriteStrClient(Client, ERR_NOSUCHSERVER_MSG,
 226                                                   Client_ID(Client),
 227                                                   Req->argv[0]);
 228         }
 229
 230         return CONNECTED;
 231 } /* IRC_CONNECT */
 232
 233
 234 GLOBAL bool
 235 IRC_DISCONNECT(CLIENT *Client, REQUEST *Req )
 236 {
 237         /* Disconnect and disable configured server */
 238
 239         CONN_ID my_conn;
 240
 241         assert( Client != NULL );
 242         assert( Req != NULL );
 243
 244         /* Not a local IRC operator? */
 245         if(( ! Client_HasMode( Client, 'o' )) || ( ! Client_OperByMe( Client ))) return IRC_WriteStrClient( Client, ERR_NOPRIVILEGES_MSG, Client_ID( Client ));
 246
 247         /* Bad number of parameters? */
 248         if( Req->argc != 1 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
 249
 250         Log( LOG_NOTICE|LOG_snotice, "Got DISCONNECT command from \"%s\" for0 \"%s\".", Client_Mask( Client ), Req->argv[0]);
 251
 252         /* Save ID of this connection */
 253         my_conn = Client_Conn( Client );
 254
 255         /* Connect configured server */
 256         if( ! Conf_DisableServer( Req->argv[0] )) return IRC_WriteStrClient( Client, ERR_NOSUCHSERVER_MSG, Client_ID( Client ), Req->argv[0] );
 257
 258         /* Are we still connected or were we killed, too? */
 259         if( Conn_GetClient( my_conn )) return CONNECTED;
 260         else return DISCONNECTED;
 261 } /* IRC_CONNECT */
 262
 263
 264 GLOBAL bool
 265 IRC_WALLOPS( CLIENT *Client, REQUEST *Req )
 266 {
 267         CLIENT *to, *from;
 268         int client_type;
 269
 270         assert( Client != NULL );
 271         assert( Req != NULL );
 272
 273         if (Req->argc != 1)
 274                 return IRC_WriteStrClient(Client, ERR_NEEDMOREPARAMS_MSG, Client_ID(Client), Req->command);
 275
 276         client_type = Client_Type(Client);
 277         switch (client_type) {
 278         case CLIENT_USER:
 279                 if (!Client_OperByMe(Client))
 280                         return IRC_WriteStrClient(Client, ERR_NOPRIVILEGES_MSG, Client_ID(Client));
 281                 from = Client;
 282                 break;
 283         case CLIENT_SERVER:
 284                 from = Client_Search(Req->prefix);
 285                 break;
 286         default:
 287                 return CONNECTED;
 288         }
 289
 290         if (!from)
 291                 return IRC_WriteStrClient(Client, ERR_NOSUCHNICK_MSG, Client_ID(Client), Req->prefix);
 292
 293         for (to=Client_First(); to != NULL; to=Client_Next(to)) {
 294                 if (Client_Conn(to) < 0) /* no local connection or WALLOPS origin */
 295                         continue;
 296
 297                 client_type = Client_Type(to);
 298                 switch (client_type) {
 299                 case CLIENT_USER:
 300                         if (Client_HasMode(to, 'w'))
 301                                 IRC_WriteStrClientPrefix(to, from, "WALLOPS :%s", Req->argv[0]);
 302                         break;
 303                 case CLIENT_SERVER:
 304                         if (to != Client)
 305                                 IRC_WriteStrClientPrefix(to, from, "WALLOPS :%s", Req->argv[0]);
 306                         break;
 307                 }
 308         }
 309         return CONNECTED;
 310 }
 311
 312
 313
 314 /* -eof- */