137 lines
4.7 KiB
Erlang
137 lines
4.7 KiB
Erlang
%%%----------------------------------------------------------------------
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%%% File : mod_http_bind.erl
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%%% Author : Stefan Strigler <steve@zeank.in-berlin.de>
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%%% Purpose : Implementation of XMPP over BOSH (XEP-0206)
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%%% Created : Tue Feb 20 13:15:52 CET 2007
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%%%
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%%%
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%%% ejabberd, Copyright (C) 2002-2009 ProcessOne
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%%%
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%%% This program is free software; you can redistribute it and/or
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%%% modify it under the terms of the GNU General Public License as
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%%% published by the Free Software Foundation; either version 2 of the
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%%% License, or (at your option) any later version.
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%%%
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%%% This program is distributed in the hope that it will be useful,
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%%% but WITHOUT ANY WARRANTY; without even the implied warranty of
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%%% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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%%% General Public License for more details.
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%%%
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%%% You should have received a copy of the GNU General Public License
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%%% along with this program; if not, write to the Free Software
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%%% Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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%%% 02111-1307 USA
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%%%
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%%%----------------------------------------------------------------------
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%%%----------------------------------------------------------------------
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%%% This module acts as a bridge to ejabberd_http_bind which implements
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%%% the real stuff, this is to handle the new pluggable architecture for
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%%% extending ejabberd's http service.
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%%%----------------------------------------------------------------------
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-module(mod_http_bind).
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-author('steve@zeank.in-berlin.de').
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-define(MOD_HTTP_BIND_VERSION, "1.2").
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%%-define(ejabberd_debug, true).
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-behaviour(gen_mod).
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-export([
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start/2,
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stop/1,
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process/2
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]).
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-include("ejabberd.hrl").
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-include("jlib.hrl").
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-include("ejabberd_http.hrl").
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%% Duplicated from ejabberd_http_bind.
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%% TODO: move to hrl file.
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-record(http_bind, {id, pid, to, hold, wait, version}).
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%%%----------------------------------------------------------------------
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%%% API
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%%%----------------------------------------------------------------------
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process([], #request{method = 'POST',
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data = []}) ->
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?DEBUG("Bad Request: no data", []),
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{400, [], {xmlelement, "h1", [],
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[{xmlcdata, "400 Bad Request"}]}};
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process([], #request{method = 'POST',
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data = Data,
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ip = IP}) ->
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?DEBUG("Incoming data: ~s", [Data]),
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ejabberd_http_bind:process_request(Data, IP);
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process([], #request{method = 'GET',
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data = []}) ->
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Heading = "Ejabberd " ++ atom_to_list(?MODULE) ++ " v" ++ ?MOD_HTTP_BIND_VERSION,
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{xmlelement, "html", [{"xmlns", "http://www.w3.org/1999/xhtml"}],
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[{xmlelement, "head", [],
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[{xmlelement, "title", [], [{xmlcdata, Heading}]}]},
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{xmlelement, "body", [],
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[{xmlelement, "h1", [], [{xmlcdata, Heading}]},
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{xmlelement, "p", [],
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[{xmlcdata, "An implementation of "},
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{xmlelement, "a", [{"href", "http://www.xmpp.org/extensions/xep-0206.html"}],
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[{xmlcdata, "XMPP over BOSH (XEP-0206)"}]}]}
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]}]};
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process(_Path, _Request) ->
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?DEBUG("Bad Request: ~p", [_Request]),
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{400, [], {xmlelement, "h1", [],
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[{xmlcdata, "400 Bad Request"}]}}.
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%%%----------------------------------------------------------------------
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%%% BEHAVIOUR CALLBACKS
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%%%----------------------------------------------------------------------
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start(_Host, _Opts) ->
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setup_database(),
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HTTPBindSupervisor =
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{ejabberd_http_bind_sup,
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{ejabberd_tmp_sup, start_link,
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[ejabberd_http_bind_sup, ejabberd_http_bind]},
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permanent,
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infinity,
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supervisor,
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[ejabberd_tmp_sup]},
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case supervisor:start_child(ejabberd_sup, HTTPBindSupervisor) of
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{ok, _Pid} ->
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ok;
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{ok, _Pid, _Info} ->
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ok;
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{error, {already_started, _PidOther}} ->
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% mod_http_bind is already started so it will not be started again
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ok;
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{error, Error} ->
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{'EXIT', {start_child_error, Error}}
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end.
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stop(_Host) ->
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case supervisor:terminate_child(ejabberd_sup, ejabberd_http_bind_sup) of
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ok ->
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ok;
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{error, Error} ->
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{'EXIT', {terminate_child_error, Error}}
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end.
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setup_database() ->
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migrate_database(),
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mnesia:create_table(http_bind,
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[{ram_copies, [node()]},
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{attributes, record_info(fields, http_bind)}]).
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migrate_database() ->
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case catch mnesia:table_info(http_bind, attributes) of
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[id, pid, to, hold, wait, version] ->
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ok;
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_ ->
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%% Since the stored information is not important, instead
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%% of actually migrating data, let's just destroy the table
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mnesia:delete_table(http_bind)
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end.
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