Basic locale switcher

classes/LocaleManager.php

@@ -0,0 +1,77 @@
+<?php
+/**
+ * LocaleManager class.
+ */
+
+namespace Alltube;
+
+/**
+ * Class used to manage locales.
+ */
+class LocaleManager
+{
+    /**
+     * Supported locales.
+     *
+     * @var array
+     */
+    private $supportedLocales = ['en_US', 'fr_FR', 'zh_CN'];
+
+    /**
+     * Current locale.
+     *
+     * @var string
+     */
+    private $curLocale;
+
+    /**
+     * LocaleManager constructor.
+     *
+     * @param array $cookies Cookie array
+     */
+    public function __construct(array $cookies = [])
+    {
+        $session_factory = new \Aura\Session\SessionFactory();
+        $session = $session_factory->newInstance($cookies);
+        $this->sessionSegment = $session->getSegment('Alltube\LocaleManager');
+        $this->setLocale($this->sessionSegment->get('locale'));
+    }
+
+    /**
+     * Get a list of supported locales.
+     *
+     * @return array
+     */
+    public function getSupportedLocales()
+    {
+        $return = [];
+        foreach ($this->supportedLocales as $supportedLocale) {
+            $return[$supportedLocale] = \Locale::getDisplayName($supportedLocale, $this->curLocale);
+        }
+
+        return $return;
+    }
+
+    /**
+     * Get the current locale.
+     *
+     * @return string
+     */
+    public function getLocale()
+    {
+        return $this->curLocale;
+    }
+
+    /**
+     * Set the current locale.
+     *
+     * @param string $locale Locale code.
+     */
+    public function setLocale($locale)
+    {
+        putenv('LANG='.$locale);
+        setlocale(LC_ALL, [$locale, $locale.'.utf8']);
+        $this->curLocale = $locale;
+        $this->sessionSegment->set('locale', $locale);
+    }
+}

classes/LocaleMiddleware.php

@@ -5,6 +5,7 @@
 
 namespace Alltube;
 
+use Psr\Container\ContainerInterface;
 use Slim\Http\Request;
 use Slim\Http\Response;
 use Teto\HTTP\AcceptLanguage;
@@ -15,11 +16,14 @@ use Teto\HTTP\AcceptLanguage;
 class LocaleMiddleware
 {
     /**
-     * Supported locales.
+     * LocaleMiddleware constructor.
      *
-     * @var array
+     * @param ContainerInterface $container Slim dependency container
      */
-    private $locales = ['fr_FR', 'zh_CN'];
+    public function __construct(ContainerInterface $container)
+    {
+        $this->locale = $container->get('locale');
+    }
 
     /**
      * Test if a locale can be used for the current user.
@@ -30,7 +34,7 @@ class LocaleMiddleware
      */
     public function testLocale(array $proposedLocale)
     {
-        foreach ($this->locales as $locale) {
+        foreach ($this->locale->getSupportedLocales() as $locale => $name) {
             $parsedLocale = AcceptLanguage::parse($locale);
             if (isset($proposedLocale['language'])
                 && $parsedLocale[1]['language'] == $proposedLocale['language']
@@ -53,9 +57,12 @@ class LocaleMiddleware
     public function __invoke(Request $request, Response $response, callable $next)
     {
         $headers = $request->getHeader('Accept-Language');
-        $locale = AcceptLanguage::detect([$this, 'testLocale'], 'en_US', $headers[0]);
-        putenv('LANG='.$locale);
-        setlocale(LC_ALL, [$locale, $locale.'.utf8']);
+        $curLocale = $this->locale->getLocale();
+        if (!isset($curLocale)) {
+            $this->locale->setLocale(
+                AcceptLanguage::detect([$this, 'testLocale'], 'en_US', $headers[0])
+            );
+        }
 
         return $next($request, $response);
     }

controllers/FrontController.php

@@ -78,6 +78,7 @@ class FrontController
         $this->download = new VideoDownload();
         $this->container = $container;
         $this->view = $this->container->get('view');
+        $this->locale = $this->container->get('locale');
         $session_factory = new \Aura\Session\SessionFactory();
         $session = $session_factory->newInstance($cookies);
         $this->sessionSegment = $session->getSegment('Alltube\Controller\FrontController');
@@ -106,12 +107,30 @@ class FrontController
                 'description'  => 'Easily download videos from Youtube, Dailymotion, Vimeo and other websites.',
                 'domain'       => $uri->getScheme().'://'.$uri->getAuthority(),
                 'canonical'    => $this->getCanonicalUrl($request),
+                'locales'      => $this->locale->getSupportedLocales(),
+                'locale'       => $this->locale->getLocale(),
             ]
         );
 
         return $response;
     }
 
+    /**
+     * Switch locale.
+     *
+     * @param Request  $request  PSR-7 request
+     * @param Response $response PSR-7 response
+     * @param array    $data     Query parameters
+     *
+     * @return Response
+     */
+    public function locale(Request $request, Response $response, array $data)
+    {
+        $this->locale->setLocale($data['locale']);
+
+        return $response->withRedirect($this->container->get('router')->pathFor('index'));
+    }
+
     /**
      * Display a list of extractors.
      *
@@ -132,6 +151,7 @@ class FrontController
                 'description' => 'List of all supported websites from which Alltube Download '.
                     'can extract video or audio files',
                 'canonical'   => $this->getCanonicalUrl($request),
+                'locale'      => $this->locale->getLocale(),
             ]
         );
 
@@ -156,6 +176,7 @@ class FrontController
                 'title'       => 'Password prompt',
                 'description' => 'You need a password in order to download this video with Alltube Download',
                 'canonical'   => $this->getCanonicalUrl($request),
+                'locale'      => $this->locale->getLocale(),
             ]
         );
 
@@ -246,6 +267,7 @@ class FrontController
                 'protocol'    => $protocol,
                 'config'      => $this->config,
                 'canonical'   => $this->getCanonicalUrl($request),
+                'locale'      => $this->locale->getLocale(),
             ]
         );
 
@@ -297,6 +319,7 @@ class FrontController
                 'class'     => 'video',
                 'title'     => 'Error',
                 'canonical' => $this->getCanonicalUrl($request),
+                'locale'    => $this->locale->getLocale(),
             ]
         );
 

css/style.css

@@ -23,7 +23,7 @@ header {
 {padding-right:21px;}
 
 
-header a
+header .social a
 {
 overflow:hidden;
 height:38px;
@@ -595,6 +595,11 @@ h1 {
     font-family:monospace;
 }
 
+.locales {
+    float: left;
+    text-align: left;
+}
+
 @media (max-width: 640px) {
     .formats,
     .thumb {

index.php

@@ -3,6 +3,7 @@
 require_once __DIR__.'/vendor/autoload.php';
 use Alltube\Config;
 use Alltube\Controller\FrontController;
+use Alltube\LocaleManager;
 use Alltube\LocaleMiddleware;
 use Alltube\PlaylistArchiveStream;
 use Alltube\UglyRouter;
@@ -17,13 +18,14 @@ if (isset($_SERVER['REQUEST_URI']) && strpos($_SERVER['REQUEST_URI'], '/index.ph
 stream_wrapper_register('playlist', PlaylistArchiveStream::class);
 
 $app = new App();
-$app->add(new LocaleMiddleware());
 $container = $app->getContainer();
 $config = Config::getInstance();
 if ($config->uglyUrls) {
     $container['router'] = new UglyRouter();
 }
 $container['view'] = ViewFactory::create($container);
+$container['locale'] = new LocaleManager($_COOKIE);
+$app->add(new LocaleMiddleware($container));
 
 $controller = new FrontController($container, null, $_COOKIE);
 
@@ -45,4 +47,8 @@ $app->get(
     '/redirect',
     [$controller, 'redirect']
 )->setName('redirect');
+$app->get(
+    '/locale/{locale}',
+    [$controller, 'locale']
+)->setName('locale');
 $app->run();

templates/inc/head.tpl

@@ -1,6 +1,6 @@
 {locale path="../i18n" domain="Alltube"}
 <!Doctype HTML>
-<html lang="en">
+<html lang="{$locale|replace:'_':'-'}">
 <head>
 <meta charset="UTF-8" />
 <meta name=viewport content="width=device-width, initial-scale=1">

templates/inc/header.tpl

@@ -4,5 +4,12 @@
             {t}Share on Twitter{/t}<div class="twittermask"></div></a>
         <a class="facebook" href="https://www.facebook.com/sharer/sharer.php?u={base_url|urlencode}" target="_blank">{t}Share on Facebook{/t}<div class="facebookmask"></div></a>
     </div>
+    <ul class="locales">
+        {if isset($locales)}
+            {foreach $locales as $locale=>$name}
+                <li><a href="{path_for name='locale' data=['locale'=>$locale]}">{$name}</a></li>
+            {/foreach}
+        {/if}
+    </ul>
 </header>
 <div class="wrapper">