<?php
/* -*- tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
# ***** BEGIN LICENSE BLOCK *****
# This file is part of Plume Framework, a simple PHP Application Framework.
# Copyright (C) 2001-2007 Loic d'Anterroches and contributors.
#
# Plume Framework is free software; you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License as published by
# the Free Software Foundation; either version 2.1 of the License, or
# (at your option) any later version.
#
# Plume Framework 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 Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
#
# ***** END LICENSE BLOCK ***** */
/**
* Translation middleware.
*
* Load the translation of the website based on the useragent.
*/
class Pluf_Middleware_Translation
{
/**
* Process the request.
*
* @param Pluf_HTTP_Request The request
* @return bool false
*/
function process_request(&$request)
{
// Find which language to use. By priority:
// A session value with 'pluf_language'
// A cookie with 'pluf_language'
// The browser information.
$lang = false;
if (!empty($request->session)) {
$lang = $request->session->getData('pluf_language', false);
if ($lang and !in_array($lang, Pluf::f('languages', array('en')))) {
$lang = false;
}
}
if ($lang === false and !empty($request->COOKIES[Pluf::f('lang_cookie', 'pluf_language')])) {
$lang = $request->COOKIES[Pluf::f('lang_cookie', 'pluf_language')];
if ($lang and !in_array($lang, Pluf::f('languages', array('en')))) {
$lang = false;
}
}
if ($lang === false) {
// will default to 'en'
$lang = Pluf_Translation::getAcceptedLanguage(Pluf::f('languages', array('en')));
}
$GLOBALS['_PX_current_locale'] = $lang;
$GLOBALS['_PX_locale'] = array();
$GLOBALS['_PX_locale'][$lang] = array();
foreach (Pluf::f('installed_apps') as $app) {
$pofile = Pluf::fileExists($app.'/locale/'.$lang.'/'.strtolower($app).'.po');
$GLOBALS['_PX_locale'][$lang] += Pluf_Translation::readPoFile($pofile);
}
$request->language_code = $lang;
return false;
}
/**
* Process the response of a view.
*
* @param Pluf_HTTP_Request The request
* @param Pluf_HTTP_Response The response
* @return Pluf_HTTP_Response The response
*/
function process_response($request, $response)
{
$vary_h = array();
if (!empty($response->headers['Vary'])) {
$vary_h = preg_split('/\s*,\s*/', $response->headers['Vary'],
-1, PREG_SPLIT_NO_EMPTY);
}
if (!in_array('accept-language', $vary_h)) {
$vary_h[] = 'accept-language';
}
$response->headers['Vary'] = implode(', ', $vary_h);
$response->headers['Content-Language'] = $request->language_code;
return $response;
}
}