mirror of
https://github.com/processone/ejabberd.git
synced 2024-08-14 01:38:09 +02:00
120 lines
3.6 KiB
Erlang
120 lines
3.6 KiB
Erlang
%%%----------------------------------------------------------------------
|
|
%%% File : mod_ip_blacklist.erl
|
|
%%% Author : Mickael Remond <mremond@process-one.net>
|
|
%%% Purpose : Download blacklists from ProcessOne
|
|
%%% Created : 5 May 2008 by Mickael Remond <mremond@process-one.net>
|
|
%%% Usage : Add the following line in modules section of ejabberd.cfg:
|
|
%%% {mod_ip_blacklist, []}
|
|
%%%
|
|
%%%
|
|
%%% ejabberd, Copyright (C) 2002-2010 ProcessOne
|
|
%%%
|
|
%%% 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 the Free Software Foundation; either version 2 of the
|
|
%%% License, or (at your option) any later version.
|
|
%%%
|
|
%%% This program is distributed in the hope that it will be useful,
|
|
%%% but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
%%% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
%%% General Public License for more details.
|
|
%%%
|
|
%%% You should have received a copy of the GNU General Public License
|
|
%%% along with this program; if not, write to the Free Software
|
|
%%% Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
|
|
%%% 02111-1307 USA
|
|
%%%
|
|
%%%----------------------------------------------------------------------
|
|
|
|
-module(mod_ip_blacklist).
|
|
-author('mremond@process-one.net').
|
|
|
|
-behaviour(gen_mod).
|
|
|
|
%% API:
|
|
-export([start/2,
|
|
init/1,
|
|
stop/1]).
|
|
-export([update_bl_c2s/0]).
|
|
%% Hooks:
|
|
-export([is_ip_in_c2s_blacklist/2]).
|
|
|
|
-include("ejabberd.hrl").
|
|
|
|
-define(PROCNAME, ?MODULE).
|
|
-define(BLC2S, "http://xaai.process-one.net/bl_c2s.txt").
|
|
-define(UPDATE_INTERVAL, 6). %% in hours
|
|
|
|
-record(state, {timer}).
|
|
-record(bl_c2s, {ip}).
|
|
|
|
%% Start once for all vhost
|
|
start(Host, Opts) ->
|
|
case whereis(?PROCNAME) of
|
|
undefined ->
|
|
?DEBUG("Starting mod_ip_blacklist ~p ~p~n", [Host, Opts]),
|
|
register(?PROCNAME,
|
|
spawn(?MODULE, init, [#state{}]));
|
|
_ ->
|
|
ok
|
|
end.
|
|
|
|
%% TODO:
|
|
stop(_Host) ->
|
|
ok.
|
|
|
|
init(State)->
|
|
inets:start(),
|
|
ets:new(bl_c2s, [named_table, public, {keypos, #bl_c2s.ip}]),
|
|
update_bl_c2s(),
|
|
%% Register hooks for blacklist
|
|
ejabberd_hooks:add(check_bl_c2s, ?MODULE, is_ip_in_c2s_blacklist, 50),
|
|
%% Set timer: Download the blacklist file every 6 hours
|
|
timer:apply_interval(timer:hours(?UPDATE_INTERVAL), ?MODULE, update_bl_c2s, []),
|
|
loop(State).
|
|
|
|
%% Remove timer when stop is received.
|
|
loop(_State) ->
|
|
receive
|
|
stop ->
|
|
ok
|
|
end.
|
|
|
|
%% Download blacklist file from ProcessOne XAAI
|
|
%% and update the table internal table
|
|
%% TODO: Support comment lines starting by %
|
|
update_bl_c2s() ->
|
|
?INFO_MSG("Updating C2S Blacklist", []),
|
|
case http_p1:request(?BLC2S) of
|
|
{ok, {{_Version, 200, _Reason}, _Headers, Body}} ->
|
|
IPs = string:tokens(Body,"\n"),
|
|
ets:delete_all_objects(bl_c2s),
|
|
lists:foreach(
|
|
fun(IP) ->
|
|
ets:insert(bl_c2s, #bl_c2s{ip=list_to_binary(IP)})
|
|
end, IPs);
|
|
{error, Reason} ->
|
|
?ERROR_MSG("Cannot download C2S blacklist file. Reason: ~p",
|
|
[Reason])
|
|
end.
|
|
|
|
%% Hook is run with:
|
|
%% ejabberd_hooks:run_fold(check_bl_c2s, false, [IP]),
|
|
%% Return: false: IP not blacklisted
|
|
%% true: IP is blacklisted
|
|
%% IPV4 IP tuple:
|
|
is_ip_in_c2s_blacklist(_Val, IP) when is_tuple(IP) ->
|
|
BinaryIP = list_to_binary(jlib:ip_to_list(IP)),
|
|
case ets:lookup(bl_c2s, BinaryIP) of
|
|
[] -> %% Not in blacklist
|
|
false;
|
|
[_] -> %% Blacklisted!
|
|
{stop, true}
|
|
end;
|
|
is_ip_in_c2s_blacklist(_Val, _IP) ->
|
|
false.
|
|
|
|
%% TODO:
|
|
%% - For now, we do not kick user already logged on a given IP after
|
|
%% we update the blacklist.
|