2011-09-03 01:04:22 +02:00
|
|
|
%%%----------------------------------------------------------------------
|
|
|
|
%%% File : ejabberd_zlib.erl
|
|
|
|
%%% Author : Alexey Shchepin <alexey@process-one.net>
|
|
|
|
%%% Purpose : Interface to exmpp_compress
|
|
|
|
%%% Created : 19 Jan 2006 by Alexey Shchepin <alexey@process-one.net>
|
|
|
|
%%%
|
|
|
|
%%%
|
|
|
|
%%% ejabberd, Copyright (C) 2002-2011 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(ejabberd_zlib).
|
|
|
|
-author('alexey@process-one.net').
|
|
|
|
|
|
|
|
-export([start/0, start_link/0,
|
|
|
|
enable_zlib/2, disable_zlib/1,
|
|
|
|
send/2,
|
|
|
|
recv/2, recv/3, recv_data/2,
|
|
|
|
setopts/2,
|
|
|
|
get_sockmod/1,
|
|
|
|
sockname/1, peername/1,
|
|
|
|
controlling_process/2,
|
|
|
|
close/1]).
|
|
|
|
|
|
|
|
-define(DEFLATE, 1).
|
|
|
|
-define(INFLATE, 2).
|
|
|
|
|
2011-09-05 16:53:04 +02:00
|
|
|
%% Copied from exmpp/src/core/exmpp_compress.erl
|
|
|
|
-record(compress_socket, {socket,
|
|
|
|
packet_mode = binary,
|
|
|
|
port
|
|
|
|
}).
|
|
|
|
|
2011-09-03 01:04:22 +02:00
|
|
|
start() ->
|
|
|
|
exmpp_compress:start().
|
|
|
|
|
|
|
|
start_link() ->
|
|
|
|
exmpp_compress:start_link().
|
|
|
|
|
|
|
|
|
|
|
|
enable_zlib(SockMod, Socket) ->
|
|
|
|
try
|
|
|
|
ZlibSock = exmpp_compress:enable_compression({SockMod, Socket},
|
|
|
|
[{compress_method, zlib}]),
|
|
|
|
{ok, ZlibSock}
|
|
|
|
catch
|
|
|
|
Exception ->
|
|
|
|
{error, Exception}
|
|
|
|
end.
|
|
|
|
|
|
|
|
disable_zlib(ZlibSock) ->
|
|
|
|
exmpp_compress:disable_compression(ZlibSock).
|
|
|
|
|
|
|
|
recv(Socket, Length) ->
|
|
|
|
recv(Socket, Length, infinity).
|
|
|
|
recv(ZlibSock, _Length, Timeout) ->
|
|
|
|
exmpp_compress:recv(ZlibSock, Timeout).
|
|
|
|
|
2011-09-05 16:53:04 +02:00
|
|
|
recv_data(#compress_socket{socket = {SockMod, Socket}} = ZlibSock, Packet) ->
|
|
|
|
case SockMod of
|
|
|
|
gen_tcp ->
|
|
|
|
recv_data2(ZlibSock, Packet);
|
|
|
|
_ ->
|
|
|
|
case SockMod:recv_data(Socket, Packet) of
|
|
|
|
{ok, Packet2} ->
|
|
|
|
recv_data2(ZlibSock, Packet2);
|
|
|
|
Error ->
|
|
|
|
Error
|
|
|
|
end
|
|
|
|
end.
|
|
|
|
|
|
|
|
recv_data2(ZlibSock, Packet) ->
|
2011-09-03 01:04:22 +02:00
|
|
|
exmpp_compress:recv_data(ZlibSock, Packet).
|
|
|
|
|
|
|
|
send(ZlibSock, Packet) ->
|
|
|
|
exmpp_compress:send(ZlibSock, Packet).
|
|
|
|
|
|
|
|
|
|
|
|
setopts(ZlibSock, Opts) ->
|
|
|
|
exmpp_compress:setopts(ZlibSock, Opts).
|
|
|
|
|
|
|
|
get_sockmod(#compress_socket{socket = {SockMod, _Port}}) ->
|
|
|
|
SockMod.
|
|
|
|
|
|
|
|
sockname(ZlibSock) ->
|
|
|
|
exmpp_compress:sockname(ZlibSock).
|
|
|
|
|
|
|
|
peername(ZlibSock) ->
|
|
|
|
exmpp_compress:peername(ZlibSock).
|
|
|
|
|
|
|
|
controlling_process(ZlibSock, Pid) ->
|
|
|
|
exmpp_compress:controlling_process(ZlibSock, Pid).
|
|
|
|
|
|
|
|
close(ZlibSock) ->
|
|
|
|
exmpp_compress:close(ZlibSock).
|
|
|
|
|
|
|
|
|