Chapril/xmpp.chapril.org-ejabberd
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xmpp.chapril.org-ejabberd/src/mod_bosh.erl

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%%%-------------------------------------------------------------------
%%% 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) 2002-2017 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">>}]}}.
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,
ejabberd_mnesia:create(?MODULE, 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].
%%%----------------------------------------------------------------------
%%% Help Web Page
%%%----------------------------------------------------------------------
get_human_html_xmlel() ->
Heading = <<"ejabberd ",
(iolist_to_binary(atom_to_list(?MODULE)))/binary>>,
#xmlel{name = <<"html">>,
attrs =
[{<<"xmlns">>, <<"http://www.w3.org/1999/xhtml">>}],
children =
[#xmlel{name = <<"head">>,
children =
[#xmlel{name = <<"title">>,
children = [{xmlcdata, Heading}]},
#xmlel{name = <<"style">>,
children = [{xmlcdata, get_style_cdata()}]}]},
#xmlel{name = <<"body">>,
children =
[#xmlel{name = <<"div">>,
attrs = [{<<"class">>, <<"container">>}],
children = get_container_children(Heading)}]}]}.
get_container_children(Heading) ->
[#xmlel{name = <<"div">>,
attrs = [{<<"class">>, <<"section">>}],
children =
[#xmlel{name = <<"div">>,
attrs = [{<<"class">>, <<"block">>}],
children =
[#xmlel{name = <<"a">>,
attrs = [{<<"href">>, <<"https://www.ejabberd.im">>}],
children =
[#xmlel{name = <<"img">>,
attrs = [{<<"height">>, <<"32">>},
{<<"src">>, get_image_src()}]}]}]}]},
#xmlel{name = <<"div">>,
attrs = [{<<"class">>, <<"white section">>}],
children =
[#xmlel{name = <<"div">>,
attrs = [{<<"class">>, <<"block">>}],
children =
[#xmlel{name = <<"h1">>, children = [{xmlcdata, Heading}]},
#xmlel{name = <<"p">>, 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">>, children =
[{xmlcdata, <<"This web page is only informative. To "
"use HTTP-Bind you need a Jabber/XMPP "
"client that supports it.">>}]}]}]},
#xmlel{name = <<"div">>,
attrs = [{<<"class">>, <<"section">>}],
children =
[#xmlel{name = <<"div">>,
attrs = [{<<"class">>, <<"block">>}],
children =
[#xmlel{name = <<"a">>,
attrs = [{<<"href">>, <<"https://www.ejabberd.im">>},
{<<"title">>, <<"ejabberd XMPP server">>}],
children = [{xmlcdata, <<"ejabberd">>}]},
{xmlcdata, <<" is maintained by ">>},
#xmlel{name = <<"a">>,
attrs = [{<<"href">>, <<"https://www.process-one.net">>},
{<<"title">>, <<"ProcessOne - Leader in Instant Messaging and Push Solutions">>}],
children = [{xmlcdata, <<"ProcessOne">>}]} ]}]}
].
get_style_cdata() ->
<<"
body {
margin: 0;
padding: 0;
font-family: sans-serif;
color: #fff;
}
h1 {
font-size: 3em;
color: #444;
}
p {
line-height: 1.5em;
color: #888;
}
a {
color: #fff;
}
a:hover,
a:active {
text-decoration: underline;
}
.container {
position: absolute;
top: 0;
left: 0;
right: 0;
bottom: 0;
background: #424A55;
background-image: -webkit-linear-gradient(270deg, rgba(48,52,62,0) 24%, #30353e 100%);
background-image: linear-gradient(-180deg, rgba(48,52,62,0) 24%, #30353e 100%);
}
.section {
padding: 3em;
}
.white.section {
background: #fff;
border-bottom: 4px solid #41AFCA;
}
.white.section a {
text-decoration: none;
color: #41AFCA;
}
.white.section a:hover,
.white.section a:active {
text-decoration: underline;
}
.block {
margin: 0 auto;
max-width: 900px;
width: 100%;
}">>.
get_image_src() ->
<<"data:image/png;base64,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">>.
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