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 static char UNUSED id[] = "$Id: irc-oper.c,v 1.22 2005/06/12 18:02:09 fw Exp $";
18 
19 #include "imp.h"
20 #include <assert.h>
21 #include <stdlib.h>
22 #include <string.h>
23 
24 #include "ngircd.h"
25 #include "resolve.h"
26 #include "conn.h"
27 #include "conf.h"
28 #include "client.h"
29 #include "channel.h"
30 #include "irc-write.h"
31 #include "log.h"
32 #include "match.h"
33 #include "messages.h"
34 #include "parse.h"
35 
36 #include <exp.h>
37 #include "irc-oper.h"
38 
39 
40 LOCAL bool
41 Bad_OperPass(CLIENT *Client, char *errtoken, char *errmsg)
42 {
43 	Log( LOG_WARNING, "Got invalid OPER from \"%s\": \"%s\" -- %s", Client_Mask( Client ),
44 										errtoken, errmsg);
45 	IRC_SetPenalty(Client, 3);
46 	return IRC_WriteStrClient( Client, ERR_PASSWDMISMATCH_MSG, Client_ID( Client ));
47 }
48 
49 
50 GLOBAL bool
51 IRC_OPER( CLIENT *Client, REQUEST *Req )
52 {
53 	int i;
54 
55 	assert( Client != NULL );
56 	assert( Req != NULL );
57 
58 	/* Falsche Anzahl Parameter? */
59 	if( Req->argc != 2 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
60 
61 	/* Operator suchen */
62 	for( i = 0; i < Conf_Oper_Count; i++)
63 	{
64 		if( Conf_Oper[i].name[0] && Conf_Oper[i].pwd[0] && ( strcmp( Conf_Oper[i].name, Req->argv[0] ) == 0 )) break;
65 	}
66 	if( i >= Conf_Oper_Count )
67 		return Bad_OperPass(Client, Req->argv[0], "not configured");
68 
69 	/* Stimmt das Passwort? */
70 	if( strcmp( Conf_Oper[i].pwd, Req->argv[1] ) != 0 )
71 		return Bad_OperPass(Client, Conf_Oper[i].name, "Bad password");
72 
73 	/* Authorized Mask? */
74 	if( Conf_Oper[i].mask && (! Match( Conf_Oper[i].mask, Client_Mask( Client ) )))
75 		return Bad_OperPass(Client, Conf_Oper[i].mask, "hostmask check failed" );
76 
77 	if( ! Client_HasMode( Client, 'o' ))
78 	{
79 		/* noch kein o-Mode gesetzt */
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 	assert( Client != NULL );
98 	assert( Req != NULL );
99 
100 	/* Not a local IRC operator? */
101 	if(( ! Client_HasMode( Client, 'o' )) || ( ! Client_OperByMe( Client ))) return IRC_WriteStrClient( Client, ERR_NOPRIVILEGES_MSG, Client_ID( Client ));
102 	
103 	/* Bad number of parameters? */
104 	if( Req->argc != 0 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
105 
106 	Log( LOG_NOTICE|LOG_snotice, "Got DIE command from \"%s\" ...", Client_Mask( Client ));
107 	NGIRCd_SignalQuit = true;
108 	return CONNECTED;
109 } /* IRC_DIE */
110 
111 
112 GLOBAL bool
113 IRC_REHASH( CLIENT *Client, REQUEST *Req )
114 {
115 	/* Reload configuration file */
116 
117 	assert( Client != NULL );
118 	assert( Req != NULL );
119 
120 	/* Not a local IRC operator? */
121 	if(( ! Client_HasMode( Client, 'o' )) || ( ! Client_OperByMe( Client ))) return IRC_WriteStrClient( Client, ERR_NOPRIVILEGES_MSG, Client_ID( Client ));
122 
123 	/* Bad number of parameters? */
124 	if( Req->argc != 0 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
125 
126 	Log( LOG_NOTICE|LOG_snotice, "Got REHASH command from \"%s\" ...", Client_Mask( Client ));
127 	NGIRCd_SignalRehash = true;
128 	
129 	return CONNECTED;
130 } /* IRC_REHASH */
131 
132 
133 GLOBAL bool
134 IRC_RESTART( CLIENT *Client, REQUEST *Req )
135 {
136 	/* Restart IRC server (fork a new process) */
137 
138 	assert( Client != NULL );
139 	assert( Req != NULL );
140 
141 	/* Not a local IRC operator? */
142 	if(( ! Client_HasMode( Client, 'o' )) || ( ! Client_OperByMe( Client ))) return IRC_WriteStrClient( Client, ERR_NOPRIVILEGES_MSG, Client_ID( Client ));
143 
144 	/* Bad number of parameters? */
145 	if( Req->argc != 0 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
146 
147 	Log( LOG_NOTICE|LOG_snotice, "Got RESTART command from \"%s\" ...", Client_Mask( Client ));
148 	NGIRCd_SignalRestart = true;
149 	return CONNECTED;
150 } /* IRC_RESTART */
151 
152 
153 GLOBAL bool
154 IRC_CONNECT(CLIENT *Client, REQUEST *Req )
155 {
156 	/* Connect configured or new server */
157 
158 	assert( Client != NULL );
159 	assert( Req != NULL );
160 
161 	/* Not a local IRC operator? */
162 	if(( ! Client_HasMode( Client, 'o' )) || ( ! Client_OperByMe( Client ))) return IRC_WriteStrClient( Client, ERR_NOPRIVILEGES_MSG, Client_ID( Client ));
163 
164 	/* Bad number of parameters? */
165 	if(( Req->argc != 2 ) && ( Req->argc != 5 )) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
166 
167 	/* Invalid port number? */
168 	if( atoi( Req->argv[1] ) < 1 )  return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
169 
170 	Log( LOG_NOTICE|LOG_snotice, "Got CONNECT command from \"%s\" for \"%s\".", Client_Mask( Client ), Req->argv[0]);
171 
172 	if( Req->argc == 2 )
173 	{
174 		/* Connect configured server */
175 		if( ! Conf_EnableServer( Req->argv[0], atoi( Req->argv[1] ))) return IRC_WriteStrClient( Client, ERR_NOSUCHSERVER_MSG, Client_ID( Client ), Req->argv[0] );
176 	}
177 	else
178 	{
179 		/* Add server */
180 		if( ! Conf_AddServer( Req->argv[0], atoi( Req->argv[1] ), Req->argv[2], Req->argv[3], Req->argv[4] )) return IRC_WriteStrClient( Client, ERR_NOSUCHSERVER_MSG, Client_ID( Client ), Req->argv[0] );
181 	}
182 	return CONNECTED;
183 } /* IRC_CONNECT */
184 
185 
186 GLOBAL bool
187 IRC_DISCONNECT(CLIENT *Client, REQUEST *Req )
188 {
189 	/* Disconnect and disable configured server */
190 
191 	CONN_ID my_conn;
192 
193 	assert( Client != NULL );
194 	assert( Req != NULL );
195 
196 	/* Not a local IRC operator? */
197 	if(( ! Client_HasMode( Client, 'o' )) || ( ! Client_OperByMe( Client ))) return IRC_WriteStrClient( Client, ERR_NOPRIVILEGES_MSG, Client_ID( Client ));
198 
199 	/* Bad number of parameters? */
200 	if( Req->argc != 1 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
201 
202 	Log( LOG_NOTICE|LOG_snotice, "Got DISCONNECT command from \"%s\" for0 \"%s\".", Client_Mask( Client ), Req->argv[0]);
203 
204 	/* Save ID of this connection */
205 	my_conn = Client_Conn( Client );
206 
207 	/* Connect configured server */
208 	if( ! Conf_DisableServer( Req->argv[0] )) return IRC_WriteStrClient( Client, ERR_NOSUCHSERVER_MSG, Client_ID( Client ), Req->argv[0] );
209 
210 	/* Are we still connected or were we killed, too? */
211 	if( Client_GetFromConn( my_conn )) return CONNECTED;
212 	else return DISCONNECTED;
213 } /* IRC_CONNECT */
214 
215 
216 /* -eof- */