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Channel_CheckAdminRights(): test if client can admin a channel

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This generic function tests if a client is allowed to do administrative
tasks to a specific channel:

 - servers and services are always truested ("allowed everything"),
 - channel operators are allowed,
 - IRC operarors are allowed if OperCanUseMode is set in the config.
This commit is contained in:
Alexander Barton 2011-01-09 22:40:11 +01:00
parent 3460c87c58
commit ba32d594fd
3 changed files with 72 additions and 26 deletions
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60
src/ngircd/channel.c
View File

@ -1,6 +1,6 @@
/*
* ngIRCd -- The Next Generation IRC Daemon
* Copyright (c)2001-2009 Alexander Barton (alex@barton.de)
* Copyright (c)2001-2011 Alexander Barton (alex@barton.de) and Contributors.
*
* 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
@ -1119,6 +1119,64 @@ Channel_CheckKey(CHANNEL *Chan, CLIENT *Client, const char *Key)
} /* Channel_CheckKey */
/**
* Check wether a client is allowed to administer a channel or not.
*
* @param Chan The channel to test.
* @param Client The client from which the command has been received.
* @param Origin The originator of the command (or NULL).
* @param OnChannel Set to true if the originator is member of the channel.
* @param AdminOk Set to true if the client is allowed to do
* administrative tasks on this channel.
* @param UseServerMode Set to true if ngIRCd should emulate "server mode",
* that is send commands as if originating from a server
* and not the originator of the command.
*/
GLOBAL void
Channel_CheckAdminRights(CHANNEL *Chan, CLIENT *Client, CLIENT *Origin,
bool *OnChannel, bool *AdminOk, bool *UseServerMode)
{
assert (Chan != NULL);
assert (Client != NULL);
assert (OnChannel != NULL);
assert (AdminOk != NULL);
assert (UseServerMode != NULL);
/* Use the client as origin, if no origin has been given (no prefix?) */
if (!Origin)
Origin = Client;
*OnChannel = false;
*AdminOk = false;
*UseServerMode = false;
if (Client_Type(Client) != CLIENT_USER
&& Client_Type(Client) != CLIENT_SERVER
&& Client_Type(Client) != CLIENT_SERVICE)
return;
/* Allow channel administration if the client is a server or service */
if (Client_Type(Client) != CLIENT_USER) {
*AdminOk = true;
return;
}
*OnChannel = Channel_IsMemberOf(Chan, Origin);
if (*OnChannel && strchr(Channel_UserModes(Chan, Origin), 'o')) {
/* User is a channel operator */
*AdminOk = true;
} else if (Conf_OperCanMode) {
/* IRC operators are allowed to administer channels as well */
if (Client_OperByMe(Origin)) {
*AdminOk = true;
if (Conf_OperServerMode)
*UseServerMode = true;
}
}
} /* Channel_CheckAdminRights */
static CL2CHAN *
Get_First_Cl2Chan( CLIENT *Client, CHANNEL *Chan )
{

6
src/ngircd/channel.h
View File

@ -1,6 +1,6 @@
/*
* ngIRCd -- The Next Generation IRC Daemon
* Copyright (c)2001-2008 by Alexander Barton (alex@barton.de)
* Copyright (c)2001-2011 Alexander Barton (alex@barton.de) and Contributors.
*
* 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
@ -133,6 +133,10 @@ GLOBAL void Channel_LogServer PARAMS((const char *msg));
GLOBAL bool Channel_CheckKey PARAMS((CHANNEL *Chan, CLIENT *Client,
const char *Key));
GLOBAL void Channel_CheckAdminRights PARAMS((CHANNEL *Chan, CLIENT *Client,
CLIENT *Origin, bool *OnChannel,
bool *AdminOk, bool *UseServerMode));
#define Channel_IsLocal(c) (Channel_Name(c)[0] == '&')
#define Channel_IsModeless(c) (Channel_Name(c)[0] == '+')

32
src/ngircd/irc-mode.c
View File

@ -1,6 +1,6 @@
/*
* ngIRCd -- The Next Generation IRC Daemon
* Copyright (c)2001-2010 Alexander Barton (alex@barton.de)
* Copyright (c)2001-2011 Alexander Barton (alex@barton.de) and Contributors.
*
* 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
@ -316,8 +316,7 @@ Channel_Mode(CLIENT *Client, REQUEST *Req, CLIENT *Origin, CHANNEL *Channel)
{
char the_modes[COMMAND_LEN], the_args[COMMAND_LEN], x[2],
argadd[CLIENT_PASS_LEN], *mode_ptr;
bool connected, set, skiponce, retval, onchannel;
bool modeok = true, use_servermode = false;
bool connected, set, skiponce, retval, onchannel, modeok, use_servermode;
int mode_arg, arg_arg;
CLIENT *client;
long l;
@ -331,28 +330,13 @@ Channel_Mode(CLIENT *Client, REQUEST *Req, CLIENT *Origin, CHANNEL *Channel)
if (Req->argc <= 1)
return Channel_Mode_Answer_Request(Origin, Channel);
/* Is the user allowed to change modes? */
if (Client_Type(Client) == CLIENT_USER) {
/* Is the originating user on that channel? */
onchannel = Channel_IsMemberOf(Channel, Origin);
modeok = false;
/* channel operator? */
if (onchannel &&
strchr(Channel_UserModes(Channel, Origin), 'o')) {
modeok = true;
} else if (Conf_OperCanMode) {
/* IRC-Operators can use MODE as well */
if (Client_OperByMe(Origin)) {
modeok = true;
if (Conf_OperServerMode)
use_servermode = true; /* Change Origin to Server */
}
}
Channel_CheckAdminRights(Channel, Client, Origin,
&onchannel, &modeok, &use_servermode);
if (!onchannel && !modeok)
return IRC_WriteStrClient(Origin, ERR_NOTONCHANNEL_MSG,
Client_ID(Origin), Channel_Name(Channel));
}
if (!onchannel && !modeok)
return IRC_WriteStrClient(Origin, ERR_NOTONCHANNEL_MSG,
Client_ID(Origin),
Channel_Name(Channel));
mode_arg = 1;
mode_ptr = Req->argv[mode_arg];