Implemented new "secure clients only" channel mode: +z

Only clients using a SSL encrypted connection to the server are
allowed to join such a channel.

But please note three things:

a) already joined clients are not checked when setting this mode,
b) IRC operators are always allowed to join every channel, and
c) remote clients using a server not supporting this mode are not
   checked either and therefore always allowed to join.
This commit is contained in:
Alexander Barton 2010-01-17 14:19:35 +01:00
parent ef157715a0
commit 9f58418765
5 changed files with 26 additions and 6 deletions

12
NEWS
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@ -1,7 +1,7 @@
ngIRCd - Next Generation IRC Server
(c)2001-2009 Alexander Barton,
(c)2001-2010 Alexander Barton,
alex@barton.de, http://www.barton.de/
ngIRCd is free software and published under the
@ -10,6 +10,16 @@
-- NEWS --
ngIRCd Release 16
- A new channel mode "secure connections only" (+z) has been implemented:
Only clients using a SSL encrypted connection to the server are allowed
to join such a channel.
But please note three things: a) already joined clients are not checked
when setting this mode, b) IRC operators are always allowed to join
every channel, and c) remote clients using a server not supporting this
mode are not checked either and therefore always allowed to join.
ngIRCd Release 15 (2009-11-07)
ngIRCd 15~rc1 (2009-10-15)

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@ -81,7 +81,7 @@
in seconds. */
#define USERMODES "aiorsw" /* Supported user modes. */
#define CHANMODES "biIklmnoPstv" /* Supported channel modes. */
#define CHANMODES "biIklmnoPstvz" /* Supported channel modes. */
#define CONNECTED true /* Internal status codes. */
#define DISCONNECTED false

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@ -1,6 +1,6 @@
/*
* ngIRCd -- The Next Generation IRC Daemon
* Copyright (c)2001-2008 Alexander Barton (alex@barton.de)
* Copyright (c)2001-2010 Alexander Barton (alex@barton.de)
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
@ -93,7 +93,7 @@ join_allowed(CLIENT *Client, CHANNEL *chan, const char *channame,
}
channel_modes = Channel_Modes(chan);
if ((strchr(channel_modes, 'i')) && !is_invited) {
if (strchr(channel_modes, 'i') && !is_invited) {
/* Channel is "invite-only" and client is not on invite list */
IRC_WriteStrClient(Client, ERR_INVITEONLYCHAN_MSG,
Client_ID(Client), channame);
@ -108,7 +108,7 @@ join_allowed(CLIENT *Client, CHANNEL *chan, const char *channame,
return false;
}
if ((strchr(channel_modes, 'l')) &&
if (strchr(channel_modes, 'l') &&
(Channel_MaxUsers(chan) <= Channel_MemberCount(chan))) {
/* There are more clints joined to this channel than allowed */
IRC_WriteStrClient(Client, ERR_CHANNELISFULL_MSG,
@ -116,6 +116,14 @@ join_allowed(CLIENT *Client, CHANNEL *chan, const char *channame,
return false;
}
if (strchr(channel_modes, 'z') && !Conn_UsesSSL(Client_Conn(Client))) {
/* Only "secure" clients are allowed, but clients doesn't
* use SSL encryption */
IRC_WriteStrClient(Client, ERR_SECURECHANNEL_MSG,
Client_ID(Client), channame);
return false;
}
return true;
}

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@ -1,6 +1,6 @@
/*
* ngIRCd -- The Next Generation IRC Daemon
* Copyright (c)2001-2008 Alexander Barton (alex@barton.de)
* Copyright (c)2001-2010 Alexander Barton (alex@barton.de)
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
@ -401,6 +401,7 @@ Channel_Mode(CLIENT *Client, REQUEST *Req, CLIENT *Origin, CHANNEL *Channel)
case 'n': /* Only members can write */
case 's': /* Secret channel */
case 't': /* Topic locked */
case 'z': /* Secure connections only */
if (modeok)
x[0] = *mode_ptr;
else

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@ -113,6 +113,7 @@
#define ERR_ALREADYREGISTRED_MSG "462 %s :Connection already registered"
#define ERR_PASSWDMISMATCH_MSG "464 %s :Invalid password"
#define ERR_CHANNELISFULL_MSG "471 %s %s :Cannot join channel (+l)"
#define ERR_SECURECHANNEL_MSG "471 %s %s :Cannot join channel (+z)"
#define ERR_UNKNOWNMODE_MSG "472 %s: %c :is unknown mode char for %s"
#define ERR_INVITEONLYCHAN_MSG "473 %s %s :Cannot join channel (+i)"
#define ERR_BANNEDFROMCHAN_MSG "474 %s %s :Cannot join channel (+b)"