mirror of
https://github.com/processone/ejabberd.git
synced 2024-12-20 17:27:00 +01:00
New bosh module
This commit is contained in:
Paweł Chmielowski
parent
fbfbb96872
commit
ebadcf71c2
1095
src/ejabberd_bosh.erl
Normal file
1095
src/ejabberd_bosh.erl
Normal file
File diff suppressed because it is too large
Load Diff
@ -52,12 +52,14 @@
|
||||
-include("logger.hrl").
|
||||
|
||||
-type sockmod() :: ejabberd_http_bind |
|
||||
ejabberd_bosh |
|
||||
ejabberd_http_ws |
|
||||
gen_tcp | fast_tls | ezlib.
|
||||
-type receiver() :: pid () | atom().
|
||||
-type socket() :: pid() | inet:socket() |
|
||||
fast_tls:tls_socket() |
|
||||
ezlib:zlib_socket() |
|
||||
ezlib:zlib_socket() |
|
||||
ejabberd_bosh:bind_socket() |
|
||||
ejabberd_http_bind:bind_socket().
|
||||
|
||||
-record(socket_state, {sockmod = gen_tcp :: sockmod(),
|
||||
@ -228,6 +230,7 @@ get_transport(#socket_state{sockmod = SockMod,
|
||||
tcp -> tcp_zlib;
|
||||
tls -> tls_zlib
|
||||
end;
|
||||
ejabberd_bosh -> http_bind;
|
||||
ejabberd_http_bind -> http_bind;
|
||||
ejabberd_http_ws -> websocket
|
||||
end.
|
||||
@ -254,4 +257,3 @@ peername(#socket_state{sockmod = SockMod,
|
||||
gen_tcp -> inet:peername(Socket);
|
||||
_ -> SockMod:peername(Socket)
|
||||
end.
|
||||
|
||||
|
||||
296
src/mod_bosh.erl
Normal file
296
src/mod_bosh.erl
Normal file
@ -0,0 +1,296 @@
|
||||
%%%-------------------------------------------------------------------
|
||||
%%% File : mod_bosh.erl
|
||||
%%% Author : Evgeniy Khramtsov <ekhramtsov@process-one.net>
|
||||
%%% Purpose : This module acts as a bridge to ejabberd_bosh which implements
|
||||
%%% the real stuff, this is to handle the new pluggable architecture
|
||||
%%% for extending ejabberd's http service.
|
||||
%%% Created : 20 Jul 2011 by Evgeniy Khramtsov <ekhramtsov@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(mod_bosh).
|
||||
|
||||
-author('steve@zeank.in-berlin.de').
|
||||
|
||||
%%-define(ejabberd_debug, true).
|
||||
|
||||
-behaviour(gen_server).
|
||||
-behaviour(gen_mod).
|
||||
|
||||
-export([start_link/0]).
|
||||
-export([start/2, stop/1, process/2, open_session/2,
|
||||
close_session/1, find_session/1]).
|
||||
|
||||
-export([init/1, handle_call/3, handle_cast/2,
|
||||
handle_info/2, terminate/2, code_change/3,
|
||||
depends/2, mod_opt_type/1]).
|
||||
|
||||
-include("ejabberd.hrl").
|
||||
-include("logger.hrl").
|
||||
-include_lib("stdlib/include/ms_transform.hrl").
|
||||
-include("jlib.hrl").
|
||||
|
||||
-include("ejabberd_http.hrl").
|
||||
|
||||
-include("bosh.hrl").
|
||||
|
||||
-record(bosh, {sid = <<"">> :: binary() | '_',
|
||||
timestamp = p1_time_compat:timestamp() :: erlang:timestamp() | '_',
|
||||
pid = self() :: pid() | '$1'}).
|
||||
|
||||
-record(state, {}).
|
||||
|
||||
%%%----------------------------------------------------------------------
|
||||
%%% API
|
||||
%%%----------------------------------------------------------------------
|
||||
start_link() ->
|
||||
gen_server:start_link({local, ?MODULE}, ?MODULE, [], []).
|
||||
|
||||
process([], #request{method = 'POST', data = <<>>}) ->
|
||||
?DEBUG("Bad Request: no data", []),
|
||||
{400, ?HEADER(?CT_XML),
|
||||
#xmlel{name = <<"h1">>, attrs = [],
|
||||
children = [{xmlcdata, <<"400 Bad Request">>}]}};
|
||||
process([],
|
||||
#request{method = 'POST', data = Data, ip = IP, headers = Hdrs}) ->
|
||||
?DEBUG("Incoming data: ~p", [Data]),
|
||||
Type = get_type(Hdrs),
|
||||
ejabberd_bosh:process_request(Data, IP, Type);
|
||||
process([], #request{method = 'GET', data = <<>>}) ->
|
||||
{200, ?HEADER(?CT_XML), get_human_html_xmlel()};
|
||||
process([], #request{method = 'OPTIONS', data = <<>>}) ->
|
||||
{200, ?OPTIONS_HEADER, []};
|
||||
process(_Path, _Request) ->
|
||||
?DEBUG("Bad Request: ~p", [_Request]),
|
||||
{400, ?HEADER(?CT_XML),
|
||||
#xmlel{name = <<"h1">>, attrs = [],
|
||||
children = [{xmlcdata, <<"400 Bad Request">>}]}}.
|
||||
|
||||
get_human_html_xmlel() ->
|
||||
Heading = <<"ejabberd ", (jlib:atom_to_binary(?MODULE))/binary>>,
|
||||
#xmlel{name = <<"html">>,
|
||||
attrs =
|
||||
[{<<"xmlns">>, <<"http://www.w3.org/1999/xhtml">>}],
|
||||
children =
|
||||
[#xmlel{name = <<"head">>, attrs = [],
|
||||
children =
|
||||
[#xmlel{name = <<"title">>, attrs = [],
|
||||
children = [{xmlcdata, Heading}]}]},
|
||||
#xmlel{name = <<"body">>, attrs = [],
|
||||
children =
|
||||
[#xmlel{name = <<"h1">>, attrs = [],
|
||||
children = [{xmlcdata, Heading}]},
|
||||
#xmlel{name = <<"p">>, attrs = [],
|
||||
children =
|
||||
[{xmlcdata, <<"An implementation of ">>},
|
||||
#xmlel{name = <<"a">>,
|
||||
attrs =
|
||||
[{<<"href">>,
|
||||
<<"http://xmpp.org/extensions/xep-0206.html">>}],
|
||||
children =
|
||||
[{xmlcdata,
|
||||
<<"XMPP over BOSH (XEP-0206)">>}]}]},
|
||||
#xmlel{name = <<"p">>, attrs = [],
|
||||
children =
|
||||
[{xmlcdata,
|
||||
<<"This web page is only informative. To "
|
||||
"use HTTP-Bind you need a Jabber/XMPP "
|
||||
"client that supports it.">>}]}]}]}.
|
||||
|
||||
open_session(SID, Pid) ->
|
||||
Session = #bosh{sid = SID, timestamp = p1_time_compat:timestamp(), pid = Pid},
|
||||
lists:foreach(
|
||||
fun(Node) when Node == node() ->
|
||||
gen_server:call(?MODULE, {write, Session});
|
||||
(Node) ->
|
||||
cluster_send({?MODULE, Node}, {write, Session})
|
||||
end, ejabberd_cluster:get_nodes()).
|
||||
|
||||
close_session(SID) ->
|
||||
case mnesia:dirty_read(bosh, SID) of
|
||||
[Session] ->
|
||||
lists:foreach(
|
||||
fun(Node) when Node == node() ->
|
||||
gen_server:call(?MODULE, {delete, Session});
|
||||
(Node) ->
|
||||
cluster_send({?MODULE, Node}, {delete, Session})
|
||||
end, ejabberd_cluster:get_nodes());
|
||||
[] ->
|
||||
ok
|
||||
end.
|
||||
|
||||
write_session(#bosh{pid = Pid1, sid = SID, timestamp = T1} = S1) ->
|
||||
case mnesia:dirty_read(bosh, SID) of
|
||||
[#bosh{pid = Pid2, timestamp = T2} = S2] ->
|
||||
if Pid1 == Pid2 ->
|
||||
mnesia:dirty_write(S1);
|
||||
T1 < T2 ->
|
||||
cluster_send(Pid2, replaced),
|
||||
mnesia:dirty_write(S1);
|
||||
true ->
|
||||
cluster_send(Pid1, replaced),
|
||||
mnesia:dirty_write(S2)
|
||||
end;
|
||||
[] ->
|
||||
mnesia:dirty_write(S1)
|
||||
end.
|
||||
|
||||
delete_session(#bosh{sid = SID, pid = Pid1}) ->
|
||||
case mnesia:dirty_read(bosh, SID) of
|
||||
[#bosh{pid = Pid2}] ->
|
||||
if Pid1 == Pid2 ->
|
||||
mnesia:dirty_delete(bosh, SID);
|
||||
true ->
|
||||
ok
|
||||
end;
|
||||
[] ->
|
||||
ok
|
||||
end.
|
||||
|
||||
find_session(SID) ->
|
||||
case mnesia:dirty_read(bosh, SID) of
|
||||
[#bosh{pid = Pid}] ->
|
||||
{ok, Pid};
|
||||
[] ->
|
||||
error
|
||||
end.
|
||||
|
||||
start(Host, Opts) ->
|
||||
setup_database(),
|
||||
start_jiffy(Opts),
|
||||
TmpSup = gen_mod:get_module_proc(Host, ?PROCNAME),
|
||||
TmpSupSpec = {TmpSup,
|
||||
{ejabberd_tmp_sup, start_link, [TmpSup, ejabberd_bosh]},
|
||||
permanent, infinity, supervisor, [ejabberd_tmp_sup]},
|
||||
ProcSpec = {?MODULE,
|
||||
{?MODULE, start_link, []},
|
||||
transient, 2000, worker, [?MODULE]},
|
||||
case supervisor:start_child(ejabberd_sup, ProcSpec) of
|
||||
{ok, _} ->
|
||||
supervisor:start_child(ejabberd_sup, TmpSupSpec);
|
||||
{error, {already_started, _}} ->
|
||||
supervisor:start_child(ejabberd_sup, TmpSupSpec);
|
||||
Err ->
|
||||
Err
|
||||
end.
|
||||
|
||||
stop(Host) ->
|
||||
TmpSup = gen_mod:get_module_proc(Host, ?PROCNAME),
|
||||
supervisor:terminate_child(ejabberd_sup, TmpSup),
|
||||
supervisor:delete_child(ejabberd_sup, TmpSup).
|
||||
|
||||
%%%===================================================================
|
||||
%%% gen_server callbacks
|
||||
%%%===================================================================
|
||||
init([]) ->
|
||||
{ok, #state{}}.
|
||||
|
||||
handle_call({write, Session}, _From, State) ->
|
||||
Res = write_session(Session),
|
||||
{reply, Res, State};
|
||||
handle_call({delete, Session}, _From, State) ->
|
||||
Res = delete_session(Session),
|
||||
{reply, Res, State};
|
||||
handle_call(_Request, _From, State) ->
|
||||
Reply = ok,
|
||||
{reply, Reply, State}.
|
||||
|
||||
handle_cast(_Msg, State) ->
|
||||
{noreply, State}.
|
||||
|
||||
handle_info({write, Session}, State) ->
|
||||
write_session(Session),
|
||||
{noreply, State};
|
||||
handle_info({delete, Session}, State) ->
|
||||
delete_session(Session),
|
||||
{noreply, State};
|
||||
handle_info(_Info, State) ->
|
||||
?ERROR_MSG("got unexpected info: ~p", [_Info]),
|
||||
{noreply, State}.
|
||||
|
||||
terminate(_Reason, _State) ->
|
||||
ok.
|
||||
|
||||
code_change(_OldVsn, State, _Extra) ->
|
||||
{ok, State}.
|
||||
|
||||
%%%===================================================================
|
||||
%%% Internal functions
|
||||
%%%===================================================================
|
||||
setup_database() ->
|
||||
case catch mnesia:table_info(bosh, attributes) of
|
||||
[sid, pid] ->
|
||||
mnesia:delete_table(bosh);
|
||||
_ ->
|
||||
ok
|
||||
end,
|
||||
mnesia:create_table(bosh,
|
||||
[{ram_copies, [node()]}, {local_content, true},
|
||||
{attributes, record_info(fields, bosh)}]),
|
||||
mnesia:add_table_copy(bosh, node(), ram_copies).
|
||||
|
||||
start_jiffy(Opts) ->
|
||||
case gen_mod:get_opt(json, Opts,
|
||||
fun(false) -> false;
|
||||
(true) -> true
|
||||
end, false) of
|
||||
false ->
|
||||
ok;
|
||||
true ->
|
||||
case catch ejabberd:start_app(jiffy) of
|
||||
ok ->
|
||||
ok;
|
||||
Err ->
|
||||
?WARNING_MSG("Failed to start JSON codec (jiffy): ~p. "
|
||||
"JSON support will be disabled", [Err])
|
||||
end
|
||||
end.
|
||||
|
||||
get_type(Hdrs) ->
|
||||
try
|
||||
{_, S} = lists:keyfind('Content-Type', 1, Hdrs),
|
||||
[T|_] = str:tokens(S, <<";">>),
|
||||
[_, <<"json">>] = str:tokens(T, <<"/">>),
|
||||
json
|
||||
catch _:_ ->
|
||||
xml
|
||||
end.
|
||||
|
||||
cluster_send(NodePid, Msg) ->
|
||||
erlang:send(NodePid, Msg, [noconnect, nosuspend]).
|
||||
|
||||
depends(_Host, _Opts) ->
|
||||
[].
|
||||
|
||||
mod_opt_type(json) ->
|
||||
fun (false) -> false;
|
||||
(true) -> true
|
||||
end;
|
||||
mod_opt_type(max_concat) ->
|
||||
fun (unlimited) -> unlimited;
|
||||
(N) when is_integer(N), N > 0 -> N
|
||||
end;
|
||||
mod_opt_type(max_inactivity) ->
|
||||
fun (I) when is_integer(I), I > 0 -> I end;
|
||||
mod_opt_type(max_pause) ->
|
||||
fun (I) when is_integer(I), I > 0 -> I end;
|
||||
mod_opt_type(prebind) ->
|
||||
fun (B) when is_boolean(B) -> B end;
|
||||
mod_opt_type(_) ->
|
||||
[json, max_concat, max_inactivity, max_pause, prebind].
|
||||
Loading…
Reference in New Issue
Block a user