/
Detector.php
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/
Detector.php
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<?php
namespace Concrete\Core\Multilingual\Service;
use Concrete\Core\Application\ApplicationAwareInterface;
use Concrete\Core\Application\ApplicationAwareTrait;
use Concrete\Core\Entity\Site\Site;
use Concrete\Core\Localization\Localization;
use Concrete\Core\Multilingual\Page\Section\Section;
use Concrete\Core\Page\Page;
use Concrete\Core\Session\SessionValidatorInterface;
use Concrete\Core\Site\SiteAggregateInterface;
use Concrete\Core\User\User;
use Concrete\Core\Utility\Service\Validation\Strings;
use Punic\Misc;
use Symfony\Component\HttpFoundation\Session\Session;
defined('C5_EXECUTE') or die('Access Denied.');
class Detector implements ApplicationAwareInterface, SiteAggregateInterface
{
use ApplicationAwareTrait;
/** @var bool */
protected $enabled;
/** @var bool|Section */
protected $preferredSection = false;
/** @var Site */
protected $site;
/**
* @return Site
*/
public function getSite()
{
if ($this->site === null) {
$this->site = $this->app->make('site')->getSite();
}
return $this->site;
}
/**
* Returns the preferred section based on session, cookie,
* user object, default browser (if allowed), and finally
* site preferences.
* Since the user's language is not a locale but a language,
* attempts to determine best section for the given language.
*
* @return Section|null
*/
public function getPreferredSection()
{
if ($this->preferredSection === false) {
/** @var Session $session */
$session = $this->app->make('session');
/** @var Strings $stringsValidator */
$stringsValidator = $this->app->make(Strings::class);
$section = null;
$default_locale = null;
if ($section === null) {
$locale = false;
// Detect locale by value stored in session or cookie
if ($this->canSetSessionValue() && $session->has('multilingual_default_locale')) {
$locale = $session->get('multilingual_default_locale');
} else {
$cookie = $this->app->make('cookie');
if ($cookie->has('multilingual_default_locale')) {
$locale = $cookie->get('multilingual_default_locale');
}
}
if ($locale) {
$home = Section::getByLocale($locale);
if (is_object($home)) {
$section = $home;
$default_locale = $locale;
}
}
}
if ($section === null) {
// Detect locale by user's preferred language
$u = $this->app->make(User::class);
if ($u->isRegistered()) {
$userDefaultLanguage = $u->getUserDefaultLanguage();
if ($userDefaultLanguage) {
$home = Section::getByLocaleOrLanguage($userDefaultLanguage);
if (is_object($home)) {
$section = $home;
$default_locale = $home->getLocale();
}
}
}
}
if ($section === null) {
// Detect locale by browsers headers
$siteConfig = $this->getSite()->getConfigRepository();
if ($siteConfig->get('multilingual.use_browser_detected_locale')) {
$browserLocales = Misc::getBrowserLocales();
foreach (array_keys($browserLocales) as $browserLocale) {
$home = Section::getByLocaleOrLanguage($browserLocale);
if (is_object($home)) {
$section = $home;
$default_locale = $browserLocale;
break;
}
}
}
}
if ($section === null) {
// Use the default site locale
$locale = $this->getSite()->getDefaultLocale();
if (is_object($locale)) {
$home = Section::getByLocale($locale->getLocale());
if ($home) {
$section = $home;
$default_locale = $locale->getLocale();
}
}
}
if ($section !== null && $stringsValidator->notempty($default_locale) && $this->canSetSessionValue()) {
$session->set('multilingual_default_locale', $default_locale);
}
$this->preferredSection = $section;
}
return $this->preferredSection;
}
/**
* Set the locale associated to the 'site' localization context.
*
* @param Page $c The page to be used to determine the site locale (if null we'll use the current page)
*
* @throws \Exception
*/
public function setupSiteInterfaceLocalization(Page $c = null)
{
$loc = $this->app->make(Localization::class);
$locale = null;
if ($c === null) {
$c = Page::getCurrentPage();
}
if ($c) {
$pageController = $c->getPageController();
if (is_object($pageController) && is_callable([$pageController, 'useUserLocale'])) {
$useUserLocale = $pageController->useUserLocale();
} else {
$dh = $this->app->make('helper/concrete/dashboard');
$useUserLocale = $dh->inDashboard($c);
}
if ($useUserLocale) {
$u = $this->app->make(User::class);
$locale = $u->getUserLanguageToDisplay();
} else {
if ($this->isEnabled()) {
$ms = Section::getBySectionOfSite($c);
if (!$ms) {
$ms = $this->getPreferredSection();
}
if ($ms) {
$locale = $ms->getLocale();
if ($this->canSetSessionValue()) {
$this->app->make('session')->set('multilingual_default_locale', $locale);
}
}
}
if (!$locale) {
$siteTree = $c->getSiteTreeObject();
if ($siteTree) {
$locale = $siteTree->getLocale()->getLocale();
}
}
}
}
if (!$locale) {
$localeEntity = $this->getSite()->getDefaultLocale();
if ($localeEntity) {
$locale = $localeEntity->getLocale();
}
}
if (!$locale) {
$locale = $this->app->make('config')->get('concrete.locale');
}
$loc->setContextLocale(Localization::CONTEXT_SITE, $locale);
}
/**
* Check if there's some multilingual section.
*
* @throws \Exception
*
* @return bool
*/
public function isEnabled()
{
if ($this->enabled === null) {
$result = false;
if ($this->app->isInstalled()) {
$site = $this->getSite();
if (count($site->getLocales()) > 1) {
$result = true;
}
}
$this->enabled = $result;
}
return $this->enabled;
}
/**
* Check if we can set a session value.
*
* @return bool
*/
protected function canSetSessionValue()
{
// If we already started the session, return true.
if ($this->app->make(SessionValidatorInterface::class)->hasActiveSession()) {
return true;
}
// If the site config value is true, it may start a new session without sign in to concrete5.
$site = $this->getSite();
if ($site !== null) {
$siteConfig = $site->getConfigRepository();
return (bool) $siteConfig->get('multilingual.always_track_user_locale');
}
return false;
}
}