src/ngircd/irc-oper.c

   1 /*
   2  * ngIRCd -- The Next Generation IRC Daemon
   3  * Copyright (c)2001-2008 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 <stdio.h>
  20 #include <stdlib.h>
  21 #include <string.h>
  22
  23 #include "ngircd.h"
  24 #include "resolve.h"
  25 #include "conn-func.h"
  26 #include "conf.h"
  27 #include "client.h"
  28 #include "channel.h"
  29 #include "irc-write.h"
  30 #include "log.h"
  31 #include "match.h"
  32 #include "messages.h"
  33 #include "parse.h"
  34 #include "op.h"
  35
  36 #include <exp.h>
  37 #include "irc-oper.h"
  38
  39
  40 /**
  41  * Handle invalid received OPER command.
  42  * Log OPER attempt and send error message to client.
  43  */
  44 static bool
  45 Bad_OperPass(CLIENT *Client, char *errtoken, char *errmsg)
  46 {
  47         Log(LOG_WARNING, "Got invalid OPER from \"%s\": \"%s\" -- %s",
  48             Client_Mask(Client), errtoken, errmsg);
  49         IRC_SetPenalty(Client, 3);
  50         return IRC_WriteStrClient(Client, ERR_PASSWDMISMATCH_MSG,
  51                                   Client_ID(Client));
  52 } /* Bad_OperPass */
  53
  54
  55 GLOBAL bool
  56 IRC_OPER( CLIENT *Client, REQUEST *Req )
  57 {
  58         unsigned int i;
  59
  60         assert( Client != NULL );
  61         assert( Req != NULL );
  62
  63         if( Req->argc != 2 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
  64
  65         for( i = 0; i < Conf_Oper_Count; i++)
  66         {
  67                 if( Conf_Oper[i].name[0] && Conf_Oper[i].pwd[0] && ( strcmp( Conf_Oper[i].name, Req->argv[0] ) == 0 )) break;
  68         }
  69         if( i >= Conf_Oper_Count )
  70                 return Bad_OperPass(Client, Req->argv[0], "not configured");
  71
  72         if( strcmp( Conf_Oper[i].pwd, Req->argv[1] ) != 0 )
  73                 return Bad_OperPass(Client, Conf_Oper[i].name, "bad password");
  74
  75         if( Conf_Oper[i].mask && (! Match( Conf_Oper[i].mask, Client_Mask( Client ) )))
  76                 return Bad_OperPass(Client, Conf_Oper[i].mask, "hostmask check failed" );
  77
  78         if( ! Client_HasMode( Client, 'o' ))
  79         {
  80                 Client_ModeAdd( Client, 'o' );
  81                 if( ! IRC_WriteStrClient( Client, "MODE %s :+o", Client_ID( Client ))) return DISCONNECTED;
  82                 IRC_WriteStrServersPrefix( NULL, Client, "MODE %s :+o", Client_ID( Client ));
  83         }
  84
  85         if( ! Client_OperByMe( Client )) Log( LOG_NOTICE|LOG_snotice, "Got valid OPER from \"%s\", user is an IRC operator now.", Client_Mask( Client ));
  86
  87         Client_SetOperByMe( Client, true);
  88         return IRC_WriteStrClient( Client, RPL_YOUREOPER_MSG, Client_ID( Client ));
  89 } /* IRC_OPER */
  90
  91
  92 GLOBAL bool
  93 IRC_DIE(CLIENT * Client, REQUEST * Req)
  94 {
  95         /* Shut down server */
  96
  97         CONN_ID c;
  98         CLIENT *cl;
  99
 100         assert(Client != NULL);
 101         assert(Req != NULL);
 102
 103         if (!Op_Check(Client, Req))
 104                 return Op_NoPrivileges(Client, Req);
 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         if (!Op_Check(Client, Req))
 144                 return Op_NoPrivileges(Client, Req);
 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         if (!Op_Check(Client, Req))
 165                 return Op_NoPrivileges(Client, Req);
 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         CLIENT *from, *target;
 183
 184         assert(Client != NULL);
 185         assert(Req != NULL);
 186
 187         if (!Op_Check(Client, Req))
 188                 return Op_NoPrivileges(Client, Req);
 189
 190         /* Bad number of parameters? */
 191         if (Req->argc != 1 && Req->argc != 2 && Req->argc != 3 &&
 192             Req->argc != 5 && Req->argc != 6)
 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         from = Client;
 202         target = Client_ThisServer();
 203
 204         if (Req->argc == 3 || Req->argc == 6) {
 205                 /* This CONNECT has a target parameter */
 206                 if (Client_Type(Client) == CLIENT_SERVER)
 207                         from = Client_Search(Req->prefix);
 208                 if (! from)
 209                         return IRC_WriteStrClient(Client, ERR_NOSUCHNICK_MSG,
 210                                         Client_ID(Client), Req->prefix);
 211
 212                 target = (Req->argc == 3) ? Client_Search(Req->argv[2])
 213                                           : Client_Search(Req->argv[5]);
 214                 if (! target || Client_Type(target) != CLIENT_SERVER)
 215                         return IRC_WriteStrClient(from, ERR_NOSUCHSERVER_MSG,
 216                                         Client_ID(from), Req->argv[0]);
 217         }
 218
 219         if (target != Client_ThisServer()) {
 220                 /* Forward CONNECT command ... */
 221                 if (Req->argc == 3)
 222                         IRC_WriteStrClientPrefix(target, from,
 223                                  "CONNECT %s %s :%s", Req->argv[0],
 224                                  Req->argv[1], Req->argv[2]);
 225                 else
 226                         IRC_WriteStrClientPrefix(target, from,
 227                                 "CONNECT %s %s %s %s %s :%s", Req->argv[0],
 228                                 Req->argv[1], Req->argv[2], Req->argv[3],
 229                                 Req->argv[4], Req->argv[5]);
 230                 return CONNECTED;
 231         }
 232
 233         Log(LOG_NOTICE | LOG_snotice,
 234             "Got CONNECT command from \"%s\" for \"%s\".", Client_Mask(from),
 235             Req->argv[0]);
 236         IRC_SendWallops(Client_ThisServer(), Client_ThisServer(),
 237                         "Received CONNECT %s from %s",
 238                         Req->argv[0], Client_ID(from));
 239
 240         switch (Req->argc) {
 241         case 1:
 242                 if (!Conf_EnablePassiveServer(Req->argv[0]))
 243                         return IRC_WriteStrClient(from, ERR_NOSUCHSERVER_MSG,
 244                                                   Client_ID(from),
 245                                                   Req->argv[0]);
 246                 break;
 247         case 2:
 248         case 3:
 249                 /* Connect configured server */
 250                 if (!Conf_EnableServer
 251                     (Req->argv[0], (UINT16) atoi(Req->argv[1])))
 252                         return IRC_WriteStrClient(from, ERR_NOSUCHSERVER_MSG,
 253                                                   Client_ID(from),
 254                                                   Req->argv[0]);
 255                 break;
 256         default:
 257                 /* Add server */
 258                 if (!Conf_AddServer
 259                     (Req->argv[0], (UINT16) atoi(Req->argv[1]), Req->argv[2],
 260                      Req->argv[3], Req->argv[4]))
 261                         return IRC_WriteStrClient(from, ERR_NOSUCHSERVER_MSG,
 262                                                   Client_ID(from),
 263                                                   Req->argv[0]);
 264         }
 265
 266         return CONNECTED;
 267 } /* IRC_CONNECT */
 268
 269
 270 /**
 271  * Disconnect (and disable) configured server.
 272  */
 273 GLOBAL bool
 274 IRC_DISCONNECT(CLIENT * Client, REQUEST * Req)
 275 {
 276         CONN_ID my_conn;
 277
 278         assert(Client != NULL);
 279         assert(Req != NULL);
 280
 281         if (!Op_Check(Client, Req))
 282                 return Op_NoPrivileges(Client, Req);
 283
 284         /* Bad number of parameters? */
 285         if (Req->argc != 1)
 286                 return IRC_WriteStrClient(Client, ERR_NEEDMOREPARAMS_MSG,
 287                                           Client_ID(Client), Req->command);
 288
 289         IRC_SendWallops(Client_ThisServer(), Client_ThisServer(),
 290                         "Received DISCONNECT %s from %s",
 291                         Req->argv[0], Client_ID(Client));
 292
 293         Log(LOG_NOTICE | LOG_snotice,
 294             "Got DISCONNECT command from \"%s\" for \"%s\".",
 295             Client_Mask(Client), Req->argv[0]);
 296
 297         /* Save ID of this connection */
 298         my_conn = Client_Conn(Client);
 299
 300         /* Disconnect configured server */
 301         if (!Conf_DisableServer(Req->argv[0]))
 302                 return IRC_WriteStrClient(Client, ERR_NOSUCHSERVER_MSG,
 303                                           Client_ID(Client), Req->argv[0]);
 304
 305         /* Are we still connected or were we killed, too? */
 306         if (Conn_GetClient(my_conn))
 307                 return CONNECTED;
 308         else
 309                 return DISCONNECTED;
 310 } /* IRC_DISCONNECT */
 311
 312
 313 GLOBAL bool
 314 IRC_WALLOPS( CLIENT *Client, REQUEST *Req )
 315 {
 316         CLIENT *from;
 317
 318         assert( Client != NULL );
 319         assert( Req != NULL );
 320
 321         if (Req->argc != 1)
 322                 return IRC_WriteStrClient(Client, ERR_NEEDMOREPARAMS_MSG, Client_ID(Client), Req->command);
 323
 324         switch (Client_Type(Client)) {
 325         case CLIENT_USER:
 326                 if (!Client_OperByMe(Client))
 327                         return IRC_WriteStrClient(Client, ERR_NOPRIVILEGES_MSG, Client_ID(Client));
 328                 from = Client;
 329                 break;
 330         case CLIENT_SERVER:
 331                 from = Client_Search(Req->prefix);
 332                 break;
 333         default:
 334                 return CONNECTED;
 335         }
 336
 337         if (!from)
 338                 return IRC_WriteStrClient(Client, ERR_NOSUCHNICK_MSG, Client_ID(Client), Req->prefix);
 339
 340         IRC_SendWallops(Client, from, "%s", Req->argv[0]);
 341         return CONNECTED;
 342 } /* IRC_WALLOPS */
 343
 344
 345 /* -eof- */