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-rw-r--r--src/ejabberd_frontend_socket.erl244
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diff --git a/src/ejabberd_frontend_socket.erl b/src/ejabberd_frontend_socket.erl
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--- a/src/ejabberd_frontend_socket.erl
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-%%%-------------------------------------------------------------------
-%%% File : ejabberd_frontend_socket.erl
-%%% Author : Alexey Shchepin <alexey@process-one.net>
-%%% Purpose : Frontend socket with zlib and TLS support library
-%%% Created : 23 Aug 2006 by Alexey Shchepin <alexey@process-one.net>
-%%%
-%%%
-%%% ejabberd, Copyright (C) 2002-2016 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.,
-%%% 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
-%%%
-%%%----------------------------------------------------------------------
-
--module(ejabberd_frontend_socket).
-
--author('alexey@process-one.net').
-
--behaviour(gen_server).
-
-%% API
--export([start/4,
- start_link/5,
- %connect/3,
- starttls/2,
- starttls/3,
- compress/1,
- compress/2,
- reset_stream/1,
- send/2,
- change_shaper/2,
- monitor/1,
- get_sockmod/1,
- get_peer_certificate/1,
- get_verify_result/1,
- close/1,
- sockname/1, peername/1]).
-
-%% gen_server callbacks
--export([init/1, handle_call/3, handle_cast/2,
- handle_info/2, terminate/2, code_change/3]).
-
--record(state, {sockmod, socket, receiver}).
-
--define(HIBERNATE_TIMEOUT, 90000).
-
-%%====================================================================
-%% API
-%%====================================================================
-start_link(Module, SockMod, Socket, Opts, Receiver) ->
- gen_server:start_link(?MODULE,
- [Module, SockMod, Socket, Opts, Receiver], []).
-
-start(Module, SockMod, Socket, Opts) ->
- case Module:socket_type() of
- xml_stream ->
- MaxStanzaSize = case lists:keysearch(max_stanza_size, 1,
- Opts)
- of
- {value, {_, Size}} -> Size;
- _ -> infinity
- end,
- Receiver = ejabberd_receiver:start(Socket, SockMod,
- none, MaxStanzaSize),
- case SockMod:controlling_process(Socket, Receiver) of
- ok -> ok;
- {error, _Reason} -> SockMod:close(Socket)
- end,
- supervisor:start_child(ejabberd_frontend_socket_sup,
- [Module, SockMod, Socket, Opts, Receiver]);
- raw ->
- %{ok, Pid} = Module:start({SockMod, Socket}, Opts),
- %case SockMod:controlling_process(Socket, Pid) of
- % ok ->
- % ok;
- % {error, _Reason} ->
- % SockMod:close(Socket)
- %end
- todo
- end.
-
-starttls(FsmRef, _TLSOpts) ->
- %% TODO: Frontend improvements planned by Aleksey
- %%gen_server:call(FsmRef, {starttls, TLSOpts}),
- FsmRef.
-
-starttls(FsmRef, TLSOpts, Data) ->
- gen_server:call(FsmRef, {starttls, TLSOpts, Data}),
- FsmRef.
-
-compress(FsmRef) -> compress(FsmRef, undefined).
-
-compress(FsmRef, Data) ->
- gen_server:call(FsmRef, {compress, Data}), FsmRef.
-
-reset_stream(FsmRef) ->
- gen_server:call(FsmRef, reset_stream).
-
-send(FsmRef, Data) ->
- gen_server:call(FsmRef, {send, Data}).
-
-change_shaper(FsmRef, Shaper) ->
- gen_server:call(FsmRef, {change_shaper, Shaper}).
-
-monitor(FsmRef) -> erlang:monitor(process, FsmRef).
-
-get_sockmod(FsmRef) ->
- gen_server:call(FsmRef, get_sockmod).
-
-get_peer_certificate(FsmRef) ->
- gen_server:call(FsmRef, get_peer_certificate).
-
-get_verify_result(FsmRef) ->
- gen_server:call(FsmRef, get_verify_result).
-
-close(FsmRef) -> gen_server:call(FsmRef, close).
-
-sockname(FsmRef) -> gen_server:call(FsmRef, sockname).
-
-peername(_FsmRef) ->
- %% TODO: Frontend improvements planned by Aleksey
- %%gen_server:call(FsmRef, peername).
- {ok, {{0, 0, 0, 0}, 0}}.
-
-%%====================================================================
-%% gen_server callbacks
-%%====================================================================
-
-init([Module, SockMod, Socket, Opts, Receiver]) ->
- Node = ejabberd_node_groups:get_closest_node(backend),
- {SockMod2, Socket2} = check_starttls(SockMod, Socket, Receiver, Opts),
- {ok, Pid} =
- rpc:call(Node, Module, start, [{?MODULE, self()}, Opts]),
- ejabberd_receiver:become_controller(Receiver, Pid),
- {ok, #state{sockmod = SockMod2,
- socket = Socket2,
- receiver = Receiver}}.
-
-handle_call({starttls, TLSOpts}, _From, State) ->
- {ok, TLSSocket} = fast_tls:tcp_to_tls(State#state.socket, TLSOpts),
- ejabberd_receiver:starttls(State#state.receiver, TLSSocket),
- Reply = ok,
- {reply, Reply, State#state{socket = TLSSocket, sockmod = fast_tls},
- ?HIBERNATE_TIMEOUT};
-
-handle_call({starttls, TLSOpts, Data}, _From, State) ->
- {ok, TLSSocket} = fast_tls:tcp_to_tls(State#state.socket, TLSOpts),
- ejabberd_receiver:starttls(State#state.receiver, TLSSocket),
- catch (State#state.sockmod):send(
- State#state.socket, Data),
- Reply = ok,
- {reply, Reply,
- State#state{socket = TLSSocket, sockmod = fast_tls},
- ?HIBERNATE_TIMEOUT};
-handle_call({compress, Data}, _From, State) ->
- {ok, ZlibSocket} =
- ejabberd_receiver:compress(State#state.receiver, Data),
- Reply = ok,
- {reply, Reply,
- State#state{socket = ZlibSocket, sockmod = ezlib},
- ?HIBERNATE_TIMEOUT};
-handle_call(reset_stream, _From, State) ->
- ejabberd_receiver:reset_stream(State#state.receiver),
- Reply = ok,
- {reply, Reply, State, ?HIBERNATE_TIMEOUT};
-handle_call({send, Data}, _From, State) ->
- catch (State#state.sockmod):send(State#state.socket, Data),
- Reply = ok,
- {reply, Reply, State, ?HIBERNATE_TIMEOUT};
-handle_call({change_shaper, Shaper}, _From, State) ->
- ejabberd_receiver:change_shaper(State#state.receiver,
- Shaper),
- Reply = ok,
- {reply, Reply, State, ?HIBERNATE_TIMEOUT};
-handle_call(get_sockmod, _From, State) ->
- Reply = State#state.sockmod,
- {reply, Reply, State, ?HIBERNATE_TIMEOUT};
-handle_call(get_peer_certificate, _From, State) ->
- Reply = fast_tls:get_peer_certificate(State#state.socket),
- {reply, Reply, State, ?HIBERNATE_TIMEOUT};
-handle_call(get_verify_result, _From, State) ->
- Reply = fast_tls:get_verify_result(State#state.socket),
- {reply, Reply, State, ?HIBERNATE_TIMEOUT};
-handle_call(close, _From, State) ->
- ejabberd_receiver:close(State#state.receiver),
- Reply = ok,
- {stop, normal, Reply, State};
-handle_call(sockname, _From, State) ->
- #state{sockmod = SockMod, socket = Socket} = State,
- Reply =
- case SockMod of
- gen_tcp ->
- inet:sockname(Socket);
- _ ->
- SockMod:sockname(Socket)
- end,
- {reply, Reply, State, ?HIBERNATE_TIMEOUT};
-handle_call(peername, _From, State) ->
- #state{sockmod = SockMod, socket = Socket} = State,
- Reply = case SockMod of
- gen_tcp -> inet:peername(Socket);
- _ -> SockMod:peername(Socket)
- end,
- {reply, Reply, State, ?HIBERNATE_TIMEOUT};
-handle_call(_Request, _From, State) ->
- Reply = ok, {reply, Reply, State, ?HIBERNATE_TIMEOUT}.
-
-handle_cast(_Msg, State) ->
- {noreply, State, ?HIBERNATE_TIMEOUT}.
-
-handle_info(timeout, State) ->
- proc_lib:hibernate(gen_server, enter_loop,
- [?MODULE, [], State]),
- {noreply, State, ?HIBERNATE_TIMEOUT};
-handle_info(_Info, State) ->
- {noreply, State, ?HIBERNATE_TIMEOUT}.
-
-terminate(_Reason, _State) -> ok.
-
-code_change(_OldVsn, State, _Extra) -> {ok, State}.
-
-check_starttls(SockMod, Socket, Receiver, Opts) ->
- TLSEnabled = proplists:get_bool(tls, Opts),
- TLSOpts = lists:filter(fun({certfile, _}) -> true;
- (_) -> false
- end, Opts),
- if TLSEnabled ->
- {ok, TLSSocket} = fast_tls:tcp_to_tls(Socket, TLSOpts),
- ejabberd_receiver:starttls(Receiver, TLSSocket),
- {fast_tls, TLSSocket};
- true ->
- {SockMod, Socket}
- end.
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