Add Internationalization

- Add Utils/L10n class
- Add translator functions to PHP Renderer
- Refactor web controllers to prevent duplicated code
- Add locale middleware
- Add translation file loading
- Add i18n settings

src/classes/Content/L10n.php

@@ -1,141 +0,0 @@
-<?php
-
-namespace Friendica\Directory\Content;
-
-/**
- * @author Hypolite Petovan <mrpetovan@gmail.com>
- */
-class L10n
-{
-	/**
-	 * @var string
-	 */
-	private $lang;
-
-	/**
-	 * @var array
-	 */
-	private $strings;
-
-	/**
-	 * @var string
-	 */
-	private $lang_path;
-
-	public function __construct(string $language = 'en', string $lang_path = '')
-	{
-		$this->lang = $language;
-		$this->lang_path = $lang_path;
-
-		$this->loadTranslationTable();
-	}
-
-	/**
-	 * Loads string translation table
-	 *
-	 * First addon strings are loaded, then globals
-	 *
-	 * Uses an App object shim since all the strings files refer to $a->strings
-	 *
-	 * @param string $lang language code to load
-	 */
-	private function loadTranslationTable(): void
-	{
-		if (file_exists($this->lang_path . '/' . $this->lang . '/strings.php')) {
-			$this->strings = include $this->lang_path . '/' . $this->lang . '/strings.php';
-		}
-	}
-
-	/**
-	 * @brief Return the localized version of a singular/plural string with optional string interpolation
-	 *
-	 * This function takes two english strings as parameters, singular and plural, as
-	 * well as a count. If a localized version exists for the current language, they
-	 * are used instead. Discrimination between singular and plural is done using the
-	 * localized function if any or the default one. Finally, a string interpolation
-	 * is performed using the count as parameter.
-	 *
-	 * Usages:
-	 * - L10n::tt('Like', 'Likes', $count)
-	 * - L10n::tt("%s user deleted", "%s users deleted", count($users))
-	 *
-	 * @param string $singular
-	 * @param string $plural
-	 * @param int    $count
-	 * @return string
-	 */
-	public function tt(string $singular, string $plural, int $count): string
-	{
-		if (!empty($this->strings[$singular])) {
-			$t = $this->strings[$singular];
-			if (is_array($t)) {
-				$plural_function = 'string_plural_select_' . str_replace('-', '_', $this->lang);
-				if (function_exists($plural_function)) {
-					$i = $plural_function($count);
-				} else {
-					$i = $this->stringPluralSelectDefault($count);
-				}
-
-				// for some languages there is only a single array item
-				if (!isset($t[$i])) {
-					$s = $t[0];
-				} else {
-					$s = $t[$i];
-				}
-			} else {
-				$s = $t;
-			}
-		} elseif ($this->stringPluralSelectDefault($count)) {
-			$s = $plural;
-		} else {
-			$s = $singular;
-		}
-
-		$s = @sprintf($s, $count);
-
-		return $s;
-	}
-
-	/**
-	 * @brief Return the localized version of the provided string with optional string interpolation
-	 *
-	 * This function takes a english string as parameter, and if a localized version
-	 * exists for the current language, substitutes it before performing an eventual
-	 * string interpolation (sprintf) with additional optional arguments.
-	 *
-	 * Usages:
-	 * - L10n::t('This is an example')
-	 * - L10n::t('URL %s returned no result', $url)
-	 * - L10n::t('Current version: %s, new version: %s', $current_version, $new_version)
-	 *
-	 * @param string $s
-	 * @param array  $vars Variables to interpolate in the translation string
-	 * @return string
-	 */
-	public function t($s, ...$vars): string
-	{
-		if (empty($s)) {
-			return '';
-		}
-
-		if (!empty($this->strings[$s])) {
-			$t = $this->strings[$s];
-			$s = is_array($t) ? $t[0] : $t;
-		}
-
-		if (count($vars) > 0) {
-			$s = sprintf($s, ...$vars);
-		}
-
-		return $s;
-	}
-
-	/**
-	 * Provide a fallback which will not collide with a function defined in any language file
-	 */
-	private function stringPluralSelectDefault(int $n): bool
-	{
-		return $n != 1;
-	}
-
-}

src/classes/Content/Pager.php

@@ -24,7 +24,7 @@ class Pager
 	private $baseQueryString = '';
 
 	/**
-	 * @var \Friendica\Directory\Content\L10n
+	 * @var \Gettext\TranslatorInterface
 	 */
 	private $l10n;
 
@@ -33,11 +33,11 @@ class Pager
 	 *
 	 * Guesses the page number from the GET parameter 'page'.
 	 *
-	 * @param \Friendica\Directory\Content\L10n        $l10n
+	 * @param \Gettext\TranslatorInterface        $l10n
 	 * @param \Psr\Http\Message\ServerRequestInterface $request
 	 * @param integer                                  $itemsPerPage An optional number of items per page to override the default value
 	 */
-	public function __construct(L10n $l10n, \Psr\Http\Message\ServerRequestInterface $request, int $itemsPerPage = 50)
+	public function __construct(\Gettext\TranslatorInterface $l10n, \Psr\Http\Message\ServerRequestInterface $request, int $itemsPerPage = 50)
 	{
 		$this->l10n = $l10n;
 		$this->setQueryString($request);
@@ -157,7 +157,7 @@ class Pager
 	 * @param integer $itemCount The number of displayed items on the page
 	 * @return array of links
 	 */
-	public function renderMinimal(int $itemCount, string $previous_label = 'Previous', string $next_label = 'Next')
+	public function renderMinimal(int $itemCount)
 	{
 		$displayedItemCount = max(0, $itemCount);
 
@@ -165,12 +165,12 @@ class Pager
 			'class' => 'pager',
 			'prev' => [
 				'url' => $this->ensureQueryParameter($this->baseQueryString . '&page=' . ($this->getPage() - 1)),
-				'text' => $this->l10n->t($previous_label),
+				'text' => $this->l10n->gettext('Previous'),
 				'class' => 'previous' . ($this->getPage() == 1 ? ' disabled' : '')
 			],
 			'next' => [
 				'url' => $this->ensureQueryParameter($this->baseQueryString . '&page=' . ($this->getPage() + 1)),
-				'text' => $this->l10n->t($next_label),
+				'text' => $this->l10n->gettext('Next'),
 				'class' => 'next' . ($displayedItemCount <= 0 ? ' disabled' : '')
 			]
 		];
@@ -208,12 +208,12 @@ class Pager
 		if ($totalItemCount > $this->getItemsPerPage()) {
 			$data['first'] = [
 				'url' => $this->ensureQueryParameter($this->baseQueryString . '&page=1'),
-				'text' => $this->l10n->t('First'),
+				'text' => $this->l10n->gettext('First'),
 				'class' => $this->getPage() == 1 ? 'disabled' : ''
 			];
 			$data['prev'] = [
 				'url' => $this->ensureQueryParameter($this->baseQueryString . '&page=' . ($this->getPage() - 1)),
-				'text' => $this->l10n->t('Previous'),
+				'text' => $this->l10n->gettext('Previous'),
 				'class' => $this->getPage() == 1 ? 'disabled' : ''
 			];
 
@@ -270,12 +270,12 @@ class Pager
 
 			$data['next'] = [
 				'url' => $this->ensureQueryParameter($this->baseQueryString . '&page=' . ($this->getPage() + 1)),
-				'text' => $this->l10n->t('Next'),
+				'text' => $this->l10n->gettext('Next'),
 				'class' => $this->getPage() == $lastpage ? 'disabled' : ''
 			];
 			$data['last'] = [
 				'url' => $this->ensureQueryParameter($this->baseQueryString . '&page=' . $lastpage),
-				'text' => $this->l10n->t('Last'),
+				'text' => $this->l10n->gettext('Last'),
 				'class' => $this->getPage() == $lastpage ? 'disabled' : ''
 			];
 		}

src/classes/Controllers/Api/Search.php

@@ -21,14 +21,14 @@ class Search
 	 */
 	private $profileModel;
 	/**
-	 * @var \Friendica\Directory\Content\L10n
+	 * @var \Gettext\TranslatorInterface
 	 */
 	private $l10n;
 
 	public function __construct(
 		\Atlas\Pdo\Connection $atlas,
 		\Friendica\Directory\Models\Profile $profileModel,
-		\Friendica\Directory\Content\L10n $l10n
+		\Gettext\TranslatorInterface $l10n
 	)
 	{
 		$this->atlas = $atlas;
@@ -67,6 +67,7 @@ AND `account_type` = :account_type';
 
 		$vars = [
 			'query'        => $originalQuery,
+			'field'        => $field,
 			'page'         => $pager->getPage(),
 			'itemsperpage' => $pager->getItemsPerPage(),
 			'count'        => $count,

src/classes/Controllers/Web/BaseController.php

@@ -0,0 +1,9 @@
+<?php
+
+namespace Friendica\Directory\Controllers\Web;
+
+
+abstract class BaseController
+{
+
+}

src/classes/Controllers/Web/Directory.php

@@ -2,17 +2,17 @@
 
 namespace Friendica\Directory\Controllers\Web;
 
-use \Friendica\Directory\Content\Pager;
-use \Friendica\Directory\Views\Widget\PopularCountries;
-use \Friendica\Directory\Views\Widget\PopularTags;
-use PDO;
+use Friendica\Directory\Content\Pager;
+use Friendica\Directory\Views\Widget\PopularCountries;
+use Friendica\Directory\Views\Widget\PopularLanguages;
+use Friendica\Directory\Views\Widget\PopularTags;
 use Slim\Http\Request;
 use Slim\Http\Response;
 
 /**
  * @author Hypolite Petovan <mrpetovan@gmail.com>
  */
-class Directory
+class Directory extends BaseController
 {
 	/**
 	 * @var \Atlas\Pdo\Connection
@@ -31,7 +31,7 @@ class Directory
 	 */
 	private $renderer;
 	/**
-	 * @var \Friendica\Directory\Content\L10n
+	 * @var \Gettext\TranslatorInterface
 	 */
 	private $l10n;
 
@@ -40,7 +40,7 @@ class Directory
 		\Friendica\Directory\Models\Profile $profileModel,
 		\Friendica\Directory\Views\Widget\AccountTypeTabs $accountTypeTabs,
 		\Friendica\Directory\Views\PhpRenderer $renderer,
-		\Friendica\Directory\Content\L10n $l10n
+		\Gettext\TranslatorInterface $l10n
 	)
 	{
 		$this->atlas = $atlas;
@@ -50,10 +50,11 @@ class Directory
 		$this->l10n = $l10n;
 	}
 
-	public function render(Request $request, Response $response, array $args): Response
+	public function render(Request $request, Response $response, array $args): array
 	{
 		$popularTags = new PopularTags($this->atlas, $this->renderer);
 		$popularCountries = new PopularCountries($this->atlas, $this->renderer);
+		$popularLanguages = new PopularLanguages($this->atlas, $this->renderer);
 
 		$pager = new Pager($this->l10n, $request, 20);
 
@@ -69,18 +70,19 @@ class Directory
 		$count = $this->profileModel->getCountForDisplay($condition, $values);
 
 		$vars = [
-			'title' => $this->l10n->t('People'),
+			'title' => $this->l10n->gettext('People'),
 			'profiles' => $profiles,
 			'pager_full' => $pager->renderFull($count),
 			'pager_minimal' => $pager->renderMinimal($count),
 			'accountTypeTabs' => $this->accountTypeTabs->render('directory', $args['account_type'] ?? ''),
 			'popularTags' => $popularTags->render(),
 			'popularCountries' => $popularCountries->render(),
+			'popularLanguages' => $popularLanguages->render(),
 		];
 
 		$content = $this->renderer->fetch('directory.phtml', $vars);
 
 		// Render index view
-		return $this->renderer->render($response, 'layout.phtml', ['baseUrl' => $request->getUri()->getBaseUrl(), 'content' => $content]);
+		return ['content' => $content];
 	}
 }

src/classes/Controllers/Web/Search.php

@@ -10,7 +10,7 @@ use Psr\Http\Message\ServerRequestInterface;
 /**
  * @author Hypolite Petovan <mrpetovan@gmail.com>
  */
-class Search
+class Search extends BaseController
 {
 	/**
 	 * @var \Atlas\Pdo\Connection
@@ -29,7 +29,7 @@ class Search
 	 */
 	private $accountTypeTabs;
 	/**
-	 * @var \Friendica\Directory\Content\L10n
+	 * @var \Gettext\TranslatorInterface
 	 */
 	private $l10n;
 
@@ -38,7 +38,7 @@ class Search
 		\Friendica\Directory\Models\Profile $profileModel,
 		\Friendica\Directory\Views\Widget\AccountTypeTabs $accountTypeTabs,
 		\Friendica\Directory\Views\PhpRenderer $renderer,
-		\Friendica\Directory\Content\L10n $l10n
+		\Gettext\TranslatorInterface $l10n
 	)
 	{
 		$this->atlas = $atlas;
@@ -48,7 +48,7 @@ class Search
 		$this->l10n = $l10n;
 	}
 
-	public function render(\Slim\Http\Request $request, \Slim\Http\Response $response, array $args): \Slim\Http\Response
+	public function render(\Slim\Http\Request $request, \Slim\Http\Response $response, array $args): array
 	{
 		$pager = new Pager($this->l10n, $request, 20);
 
@@ -56,9 +56,20 @@ class Search
 
 		$field = filter_input(INPUT_GET, 'field', FILTER_SANITIZE_STRING, FILTER_FLAG_STRIP_LOW & FILTER_FLAG_STRIP_HIGH);
 
+		$fieldName = '';
+
 		if ($field) {
 			$query .= '%';
-			$sql_where = '`' . $field . '` LIKE :query';
+			$sql_where = 'p.`' . $field . '` LIKE :query';
+
+			switch($field) {
+				case 'language': $fieldName = $this->l10n->pgettext('field', 'Language'); break;
+				case 'locality': $fieldName = $this->l10n->pgettext('field', 'Locality'); break;
+				case 'region'  : $fieldName = $this->l10n->pgettext('field', 'Region')  ; break;
+				case 'country' : $fieldName = $this->l10n->pgettext('field', 'Country') ; break;
+				default: $fieldName = ucfirst($field);
+			}
+
 		} else {
 			$sql_where = "MATCH (p.`name`, p.`pdesc`, p.`profile_url`, p.`locality`, p.`region`, p.`country`, p.`tags` )
 AGAINST (:query IN BOOLEAN MODE)";
@@ -79,8 +90,10 @@ AND `account_type` = :account_type';
 
 		$vars = [
 			'query'      => $originalQuery,
+			'field'      => $field,
+			'fieldName'  => $fieldName,
 			'count'      => $count,
-			'accountTypeTabs' => $this->accountTypeTabs->render('search', $account_type, ['q' => $originalQuery]),
+			'accountTypeTabs' => $this->accountTypeTabs->render('search', $account_type, ['q' => $originalQuery, 'field' => $field]),
 			'profiles'   => $profiles,
 			'pager_full' => $pager->renderFull($count),
 			'pager_minimal' => $pager->renderMinimal($count),
@@ -89,6 +102,6 @@ AND `account_type` = :account_type';
 		$content = $this->renderer->fetch('search.phtml', $vars);
 
 		// Render index view
-		return $this->renderer->render($response, 'layout.phtml', ['baseUrl' => $request->getUri()->getBaseUrl(), 'content' => $content, 'noNavSearch' => true]);
+		return ['content' => $content, 'noNavSearch' => true];
 	}
 }

src/classes/Controllers/Web/Servers.php

@@ -10,7 +10,7 @@ use Slim\Http\Response;
 /**
  * @author Hypolite Petovan <mrpetovan@gmail.com>
  */
-class Servers
+class Servers extends BaseController
 {
 	/**
 	 * @var \Atlas\Pdo\Connection
@@ -21,7 +21,7 @@ class Servers
 	 */
 	private $renderer;
 	/**
-	 * @var \Friendica\Directory\Content\L10n
+	 * @var \Gettext\TranslatorInterface
 	 */
 	private $l10n;
 	/**
@@ -32,7 +32,7 @@ class Servers
 	public function __construct(
 		\Atlas\Pdo\Connection $atlas,
 		\Friendica\Directory\Views\PhpRenderer $renderer,
-		\Friendica\Directory\Content\L10n $l10n,
+		\Gettext\TranslatorInterface $l10n,
 		\Psr\SimpleCache\CacheInterface $simplecache
 	)
 	{
@@ -42,7 +42,7 @@ class Servers
 		$this->simplecache = $simplecache;
 	}
 
-	public function render(Request $request, Response $response): Response
+	public function render(Request $request, Response $response): array
 	{
 		$stable_version = $this->simplecache->get('stable_version');
 		if (!$stable_version) {
@@ -72,7 +72,7 @@ LIMIT :start, :limit';
 
 		foreach ($servers as $key => $server) {
 			$servers[$key]['user_count'] = $this->atlas->fetchValue(
-				'SELECT COUNT(*) FROM `profile` WHERE `available` AND `server_id` = :server_id',
+				'SELECT COUNT(*) FROM `profile` WHERE `available` AND NOT `hidden` AND `server_id` = :server_id',
 				['server_id' => [$server['id'], PDO::PARAM_INT]]
 			);
 		}
@@ -85,7 +85,7 @@ AND NOT `hidden`';
 		$count = $this->atlas->fetchValue($stmt);
 
 		$vars = [
-			'title' => $this->l10n->t('Public Servers'),
+			'title' => $this->l10n->gettext('Public Servers'),
 			'servers' => $servers,
 			'pager' => $pager->renderFull($count),
 			'stable_version' => $stable_version,
@@ -95,6 +95,6 @@ AND NOT `hidden`';
 		$content = $this->renderer->fetch('servers.phtml', $vars);
 
 		// Render index view
-		return $this->renderer->render($response, 'layout.phtml', ['baseUrl' => $request->getUri()->getBaseUrl(), 'content' => $content]);
+		return ['content' => $content];
 	}
 }

src/classes/Routes/Http/Search.php

@@ -9,22 +9,10 @@ class Search extends BaseRoute
 {
 	public function __invoke(\Slim\Http\Request $request, \Slim\Http\Response $response, array $args): \Slim\Http\Response
 	{
-		if ($request->getAttribute('negotiation')->getMediaType() == 'application/json') {
-			$controller = new \Friendica\Directory\Controllers\Api\Search(
+		return (new \Friendica\Directory\Controllers\Api\Search(
 			$this->container->atlas,
 			$this->container->get('\Friendica\Directory\Models\Profile'),
 			$this->container->l10n
-			);
-		} else {
-			$controller = new \Friendica\Directory\Controllers\Web\Search(
-				$this->container->atlas,
-				$this->container->get('\Friendica\Directory\Models\Profile'),
-				$this->container->get('\Friendica\Directory\Views\Widget\AccountTypeTabs'),
-				$this->container->renderer,
-				$this->container->l10n
-			);
-		}
-
-		return $controller->render($request, $response, $args);
+		))->render($request, $response, $args);
 	}
 }

src/classes/Routes/Http/Servers.php

@@ -1,19 +0,0 @@
-<?php
-
-namespace Friendica\Directory\Routes\Http;
-
-/**
- * @author Hypolite Petovan <mrpetovan@gmail.com>
- */
-class Servers extends BaseRoute
-{
-	public function __invoke(\Slim\Http\Request $request, \Slim\Http\Response $response, array $args): \Slim\Http\Response
-	{
-		return (new \Friendica\Directory\Controllers\Web\Servers(
-			$this->container->atlas,
-			$this->container->renderer,
-			$this->container->l10n,
-			$this->container->simplecache)
-		)->render($request, $response);
-	}
-}

src/classes/Routes/Web/BaseRoute.php

@@ -0,0 +1,44 @@
+<?php
+
+namespace Friendica\Directory\Routes\Web;
+
+use Friendica\Directory\Controllers\Web\BaseController;
+
+/**
+ * @author Hypolite Petovan <mrpetovan@gmail.com>
+ */
+abstract class BaseRoute
+{
+	/**
+	 * @var \Slim\Container
+	 */
+	protected $container;
+
+	/**
+	 * @var BaseController
+	 */
+	protected $controller;
+
+	public function __construct(\Slim\Container $container)
+	{
+		$this->container = $container;
+	}
+
+	public function __invoke(\Slim\Http\Request $request, \Slim\Http\Response $response, array $args): \Slim\Http\Response
+	{
+		$defaults = [
+			'languages'   => $this->container->settings['i18n']['locales'],
+			'lang'        => $request->getAttribute('locale'),
+			'baseUrl'     => $request->getUri()->getBaseUrl(),
+			'content'     => '',
+			'noNavSearch' => false
+		];
+
+		$values = $this->controller->render($request, $response, $args);
+
+		$values = $values + $defaults;
+
+		// Render index view
+		return $this->container->renderer->render($response, 'layout.phtml', $values);
+	}
+}

src/classes/Routes/Web/Directory.php

@@ -1,20 +1,22 @@
 <?php
 
-namespace Friendica\Directory\Routes\Http;
+namespace Friendica\Directory\Routes\Web;
 
 /**
  * @author Hypolite Petovan <mrpetovan@gmail.com>
  */
 class Directory extends BaseRoute
 {
-	public function __invoke(\Slim\Http\Request $request, \Slim\Http\Response $response, array $args): \Slim\Http\Response
+	public function __construct(\Slim\Container $container)
 	{
-		return (new \Friendica\Directory\Controllers\Web\Directory(
+		parent::__construct($container);
+
+		$this->controller = new \Friendica\Directory\Controllers\Web\Directory(
 			$this->container->atlas,
 			$this->container->get('\Friendica\Directory\Models\Profile'),
 			$this->container->get('\Friendica\Directory\Views\Widget\AccountTypeTabs'),
 			$this->container->renderer,
-			$this->container->l10n)
-		)->render($request, $response, $args);
+			$this->container->l10n
+		);
 	}
 }

src/classes/Routes/Web/Search.php

@@ -0,0 +1,22 @@
+<?php
+
+namespace Friendica\Directory\Routes\Web;
+
+/**
+ * @author Hypolite Petovan <mrpetovan@gmail.com>
+ */
+class Search extends BaseRoute
+{
+	public function __construct(\Slim\Container $container)
+	{
+		parent::__construct($container);
+
+		$this->controller = new \Friendica\Directory\Controllers\Web\Search(
+			$this->container->atlas,
+			$this->container->get('\Friendica\Directory\Models\Profile'),
+			$this->container->get('\Friendica\Directory\Views\Widget\AccountTypeTabs'),
+			$this->container->renderer,
+			$this->container->l10n
+		);
+	}
+}

src/classes/Routes/Web/Servers.php

@@ -0,0 +1,21 @@
+<?php
+
+namespace Friendica\Directory\Routes\Web;
+
+/**
+ * @author Hypolite Petovan <mrpetovan@gmail.com>
+ */
+class Servers extends BaseRoute
+{
+	public function __construct(\Slim\Container $container)
+	{
+		parent::__construct($container);
+
+		$this->controller = new \Friendica\Directory\Controllers\Web\Servers(
+			$this->container->atlas,
+			$this->container->renderer,
+			$this->container->l10n,
+			$this->container->simplecache
+		);
+	}
+}

src/classes/Utils/L10n.php

@@ -0,0 +1,165 @@
+<?php
+
+namespace Friendica\Directory\Utils;
+
+use Gettext\Languages\Language;
+use Gettext\Translator;
+
+/**
+ * @author Hypolite Petovan <mrpetovan@gmail.com>
+ */
+class L10n
+{
+	public static $languages = [
+		'af' => 'Afrikaans',
+		'ak' => 'Akan',
+		'am' => 'አማርኛ',
+		'ar' => 'العربية',
+		'as' => 'অসমীয়া',
+		'az' => 'Azərbaycan',
+		'be' => 'Беларуская',
+		'bg' => 'Български',
+		'bm' => 'Bamanakan',
+		'bn' => 'বাংলা',
+		'bo' => 'བོད་སྐད་',
+		'br' => 'Brezhoneg',
+		'bs' => 'Bosanski',
+		'ca' => 'Català',
+		'cs' => 'Čeština',
+		'cy' => 'Cymraeg',
+		'da' => 'Dansk',
+		'de' => 'Deutsch',
+		'de_AT' => 'Österreichisches Deutsch',
+		'de_CH' => 'Schweizer Hochdeutsch',
+		'dz' => 'རྫོང་ཁ',
+		'ee' => 'Eʋegbe',
+		'el' => 'Ελληνικά',
+		'en' => 'English',
+		'en_AU' => 'Australian English',
+		'en_CA' => 'Canadian English',
+		'en_GB' => 'British English',
+		'en_US' => 'American English',
+		'eo' => 'Esperanto',
+		'es' => 'Español',
+		'es_ES' => 'Español De España',
+		'es_MX' => 'Español De México',
+		'et' => 'Eesti',
+		'eu' => 'Euskara',
+		'fa' => 'فارسی',
+		'ff' => 'Pulaar',
+		'fi' => 'Suomi',
+		'fo' => 'Føroyskt',
+		'fr' => 'Français',
+		'fr_CA' => 'Français Canadien',
+		'fr_CH' => 'Français Suisse',
+		'fy' => 'West-Frysk',
+		'ga' => 'Gaeilge',
+		'gd' => 'Gàidhlig',
+		'gl' => 'Galego',
+		'gu' => 'ગુજરાતી',
+		'gv' => 'Gaelg',
+		'ha' => 'Hausa',
+		'he' => 'עברית',
+		'hi' => 'हिन्दी',
+		'hr' => 'Hrvatski',
+		'hu' => 'Magyar',
+		'hy' => 'Հայերեն',
+		'id' => 'Bahasa Indonesia',
+		'ig' => 'Igbo',
+		'ii' => 'ꆈꌠꉙ',
+		'is' => 'Íslenska',
+		'it' => 'Italiano',
+		'ja' => '日本語',
+		'ka' => 'ქართული',
+		'ki' => 'Gikuyu',
+		'kk' => 'Қазақ Тілі',
+		'kl' => 'Kalaallisut',
+		'km' => 'ខ្មែរ',
+		'kn' => 'ಕನ್ನಡ',
+		'ko' => '한국어',
+		'ks' => 'کٲشُر',
+		'kw' => 'Kernewek',
+		'ky' => 'Кыргызча',
+		'lb' => 'Lëtzebuergesch',
+		'lg' => 'Luganda',
+		'ln' => 'Lingála',
+		'lo' => 'ລາວ',
+		'lt' => 'Lietuvių',
+		'lu' => 'Tshiluba',
+		'lv' => 'Latviešu',
+		'mg' => 'Malagasy',
+		'mk' => 'Македонски',
+		'ml' => 'മലയാളം',
+		'mn' => 'Монгол',
+		'mr' => 'मराठी',
+		'ms' => 'Bahasa Melayu',
+		'mt' => 'Malti',
+		'my' => 'ဗမာ',
+		'nb' => 'Norsk Bokmål',
+		'nd' => 'Isindebele',
+		'ne' => 'नेपाली',
+		'nl' => 'Nederlands',
+		'nl_BE' => 'Vlaams',
+		'nn' => 'Nynorsk',
+		'no' => 'Norsk',
+		'om' => 'Oromoo',
+		'or' => 'ଓଡ଼ିଆ',
+		'os' => 'Ирон',
+		'pa' => 'ਪੰਜਾਬੀ',
+		'pl' => 'Polski',
+		'ps' => 'پښتو',
+		'pt' => 'Português',
+		'pt_BR' => 'Português Do Brasil',
+		'pt_PT' => 'Português Europeu',
+		'qu' => 'Runasimi',
+		'rm' => 'Rumantsch',
+		'rn' => 'Ikirundi',
+		'ro' => 'Română',
+		'ro_MD' => 'Moldovenească',
+		'ru' => 'Русский',
+		'rw' => 'Kinyarwanda',
+		'se' => 'Davvisámegiella',
+		'sg' => 'Sängö',
+		'sh' => 'Srpskohrvatski',
+		'si' => 'සිංහල',
+		'sk' => 'Slovenčina',
+		'sl' => 'Slovenščina',
+		'sn' => 'Chishona',
+		'so' => 'Soomaali',
+		'sq' => 'Shqip',
+		'sr' => 'Српски',
+		'sv' => 'Svenska',
+		'sw' => 'Kiswahili',
+		'ta' => 'தமிழ்',
+		'te' => 'తెలుగు',
+		'th' => 'ไทย',
+		'ti' => 'ትግርኛ',
+		'tl' => 'Tagalog',
+		'to' => 'Lea Fakatonga',
+		'tr' => 'Türkçe',
+		'ug' => 'ئۇيغۇرچە',
+		'uk' => 'Українська',
+		'ur' => 'اردو',
+		'uz' => 'Oʻzbekcha',
+		'vi' => 'Tiếng Việt',
+		'yi' => 'ייִדיש',
+		'yo' => 'Èdè Yorùbá',
+		'zh' => '中文',
+		'zh_Hans' => '简体中文',
+		'zh_Hant' => '繁體中文',
+		'zu' => 'Isizulu',
+	];
+
+	public static function langToString($lang)
+	{
+		$found = false;
+		foreach(self::$languages as $key => $language) {
+			if (strtolower($key) == strtolower(str_replace('-', '_', $lang))) {
+				$found = true;
+				break;
+			}
+		}
+
+		return $found ? $language : $lang;
+	}
+}

src/classes/Views/PhpRenderer.php

@@ -6,6 +6,21 @@ namespace Friendica\Directory\Views;
  * Zend-Escaper wrapper for Slim PHP Renderer
  *
  * @author Hypolite Petovan <mrpetovan@gmail.com>
+ *
+ * @method string escapeHtml(string $value)
+ * @method string escapeHtmlAttr(string $value)
+ * @method string escapeCss(string $value)
+ * @method string escapeJs(string $value)
+ * @method string escapeUrl(string $value)
+ * @method string noop(string $original)
+ * @method string gettext(string $original)
+ * @method string ngettext(string $original, string $plural, string $value)
+ * @method string dngettext(string $domain, string $original, string $plural, string $value)
+ * @method string npgettext(string $context, string $original, string $plural, string $value)
+ * @method string pgettext(string $context, string $original)
+ * @method string dgettext(string $domain, string $original)
+ * @method string dpgettext(string $domain, string $context, string $original)
+ * @method string dnpgettext(string $domain, string $context, string $original, string $plural, string $value)
  */
 class PhpRenderer extends \Slim\Views\PhpRenderer
 {
@@ -14,13 +29,13 @@ class PhpRenderer extends \Slim\Views\PhpRenderer
 	 */
 	private $escaper;
 	/**
-	 * @var \Friendica\Directory\Content\L10n
+	 * @var \Gettext\TranslatorInterface
 	 */
 	private $l10n;
 
 	public function __construct(
 		\Zend\Escaper\Escaper $escaper,
-		\Friendica\Directory\Content\L10n $l10n,
+		\Gettext\TranslatorInterface $l10n,
 		string $templatePath = "",
 		array $attributes = array()
 	)
@@ -36,28 +51,106 @@ class PhpRenderer extends \Slim\Views\PhpRenderer
 		return $this->escapeHtml($value);
 	}
 
-	public function escapeHtml(string $value): string
+	public function __call($name, $arguments)
 	{
-		return $this->escaper->escapeHtml($value);
+		if (method_exists($this->escaper, $name)) {
+			return $this->escaper->$name(...$arguments);
+		} elseif (method_exists($this->l10n, $name)) {
+			return $this->l10n->$name(...$arguments);
+		} else {
+			throw new \Exception('Unknown PhpRendere magic method: ' . $name);
+		}
 	}
 
-	public function escapeCss(string $value): string
+	/**
+	 * Echoes the translation of a string.
+	 *
+	 * Loose copy of Gettext/gettext global __() function
+	 *
+	 * Usages:
+	 * - $this->__('Label')
+	 * - $this->__('Label %s', $value)
+	 *
+	 * @param $original
+	 * @param array  $args
+	 *
+	 * @return string
+	 */
+	public function __($original, ...$args)
 	{
-		return $this->escaper->escapeCss($value);
+		$text = $this->l10n->gettext($original);
+
+		if (!count($args)) {
+			return $text;
 		}
 
-	public function escapeJs(string $value): string
-	{
-		return $this->escaper->escapeJs($value);
+		return is_array($args[0]) ? strtr($text, $args[0]) : vsprintf($text, $args);
 	}
 
-	public function escapeHtmlAttr(string $value): string
+	/**
+	 * Returns the translation of a string in a specific context.
+	 *
+	 * @param string $context
+	 * @param string $original
+	 *
+	 * @param array  $args
+	 * @return string
+	 */
+	function p__($context, $original, ...$args)
 	{
-		return $this->escaper->escapeHtmlAttr($value);
+		$text = $this->l10n->pgettext($context, $original);
+
+		if (!count($args)) {
+			return $text;
 		}
 
-	public function escapeUrl(string $value): string
+		return is_array($args[0]) ? strtr($text, $args[0]) : vsprintf($text, $args);
+	}
+
+	/**
+	 * Returns the translation of a string in a specific domain.
+	 *
+	 * @param string $domain
+	 * @param string $original
+	 *
+	 * @param array  $args
+	 * @return string
+	 */
+	function d__($domain, $original, ...$args)
 	{
-		return $this->escaper->escapeUrl($value);
+		$text = $this->l10n->dgettext($domain, $original);
+
+		if (!count($args)) {
+			return $text;
 		}
+
+		return is_array($args[0]) ? strtr($text, $args[0]) : vsprintf($text, $args);
+	}
+
+	/**
+	 * Echoes the singular/plural translation of a string.
+	 *
+	 * Loose copy of Gettext/gettext global n__() function
+	 *
+	 * Usages:
+	 * - $this->n__('Label', 'Labels', 3)
+	 * - $this->n__('%d Label for %s', '%d Labels for %s', 3, $value)
+	 *
+	 * @param string $original
+	 * @param string $plural
+	 * @param string $count
+	 * @param array  $args
+	 *
+	 * @return string
+	 */
+	function n__($original, $plural, $count, ...$args)
+	{
+		$text = $this->l10n->ngettext($original, $plural, $count);
+
+		array_unshift($args, $count);
+
+		return is_array($args[1]) ? strtr($text, $args[1]) : vsprintf($text, $args);
+	}
+
+
 }

src/classes/Views/Widget/PopularLanguages.php

@@ -0,0 +1,36 @@
+<?php
+
+namespace Friendica\Directory\Views\Widget;
+
+/**
+ * @author Hypolite Petovan <mrpetovan@gmail.com>
+ */
+class PopularLanguages
+{
+	/**
+	 * @var \Atlas\Pdo\Connection
+	 */
+	private $connection;
+	/**
+	 * @var \Friendica\Directory\Views\PhpRenderer
+	 */
+	private $renderer;
+
+	public function __construct(\Atlas\Pdo\Connection $connection, \Friendica\Directory\Views\PhpRenderer $renderer)
+	{
+		$this->connection = $connection;
+		$this->renderer = $renderer;
+	}
+
+	public function render(): string
+	{
+		$stmt = 'SELECT `language`, COUNT(*) AS `total` FROM `profile` WHERE `language` IS NOT NULL GROUP BY `language` ORDER BY COUNT(`language`) DESC LIMIT 10';
+		$languages = $this->connection->fetchAll($stmt);
+
+		$vars = [
+			'languages' => $languages
+		];
+
+		return $this->renderer->fetch('widget/popularlanguages.phtml', $vars);
+	}
+}

src/dependencies.php

@@ -5,9 +5,9 @@ use Interop\Container\ContainerInterface;
 // DIC configuration
 
 // l10n
-$container['l10n'] = function (ContainerInterface $c): Friendica\Directory\Content\L10n {
-	$settings = $c->get('settings')['l10n'];
-	return new Friendica\Directory\Content\L10n($settings['language'] ?: 'en', $settings['lang_path'] ?: '');
+$container['l10n'] = function (ContainerInterface $c): Gettext\TranslatorInterface {
+	$translator = new Gettext\Translator();
+	return $translator;
 };
 
 // simple cache

src/middleware.php

@@ -1,9 +1,40 @@
 <?php
 // Application middleware
 
-// e.g: $app->add(new \Slim\Csrf\Guard);
-// configure middleware
+use Boronczyk\LocalizationMiddleware;
 
 $app->add(new \Gofabian\Negotiation\NegotiationMiddleware([
 	'accept' => ['text/html', 'application/json']
 ]));
+
+
+$middleware = new LocalizationMiddleware(
+	$container->get('settings')['i18n']['locales'],
+	$container->get('settings')['i18n']['default']
+);
+
+$middleware->setLocaleCallback(function (string $locale) use ($container) {
+	$langPath = $container->get('settings')['i18n']['path'];
+
+	$translator = $container->get('l10n');
+	if (is_a($translator, 'Gettext\GettextTranslator')) {
+		// One of them will end up working, right?
+		$translator->setLanguage($locale);
+		$translator->setLanguage($locale . '.utf8');
+		$translator->setLanguage($locale . '.UTF8');
+		$translator->setLanguage($locale . '.utf-8');
+		$translator->setLanguage($locale . '.UTF-8');
+
+		$translator->loadDomain('strings', $langPath);
+	} else {
+		/** @var $translator \Gettext\Translator */
+		if (file_exists($langPath . '/' . $locale . '/LC_MESSAGES/strings.mo')) {
+			$translator->loadTranslations(Gettext\Translations::fromMoFile($langPath . '/' . $locale . '/LC_MESSAGES/strings.mo'));
+		} elseif (file_exists($langPath . '/' . $locale . '/LC_MESSAGES/strings.po')) {
+			$translator->loadTranslations(Gettext\Translations::fromPoFile($langPath . '/' . $locale . '/LC_MESSAGES/strings.po'));
+		}
+	}
+});
+$middleware->setUriParamName('lang');
+
+$app->add($middleware);

src/routes.php

@@ -9,9 +9,17 @@ use Slim\Http\Response;
  * @var $app \Slim\App
  */
 
-$app->get('/servers', \Friendica\Directory\Routes\Http\Servers::class);
+$app->get('/servers', \Friendica\Directory\Routes\Web\Servers::class);
 
-$app->get('/search[/{account_type}]', \Friendica\Directory\Routes\Http\Search::class)->setName('search');
+$app->get('/search[/{account_type}]', function (Request $request, Response $response, $args) {
+	if ($request->getAttribute('negotiation')->getMediaType() == 'application/json') {
+		$route = new \Friendica\Directory\Routes\Http\Search($this);
+	} else {
+		$route = new \Friendica\Directory\Routes\Web\Search($this);
+	}
+
+	return $route($request, $response, $args);
+})->setName('search');
 
 $app->get('/submit', \Friendica\Directory\Routes\Http\Submit::class);
 
@@ -26,4 +34,4 @@ $app->get('/VERSION', function (Request $request, Response $response) {
 	return $response;
 });
 
-$app->get('/[{account_type}]', \Friendica\Directory\Routes\Http\Directory::class)->setName('directory');
+$app->get('/[{account_type}]', \Friendica\Directory\Routes\Web\Directory::class)->setName('directory');

src/settings.php

@@ -18,6 +18,11 @@ if (\is_readable(__DIR__ . '/../config/local.json')) {
 $settings = [
 	'displayErrorDetails' => false, // set to false in production
 	'addContentLengthHeader' => false, // Allow the web server to send the content-length header
+	'i18n' => [
+		'locales' => ['en', 'fr'],
+		'default' => 'en',
+		'path' => __DIR__ . '/lang'
+	],
 	// Escaper settings
 	'escaper' => [
 		'encoding' => 'utf-8'

src/templates/widget/popularlanguages.phtml

@@ -0,0 +1,12 @@
+<div>
+    <h3><?php echo $this->__('Popular Languages')?></h3>
+    <ul>
+		<?php foreach ($languages as $language): ?>
+            <li>
+                <a href="search?field=language&q=<?php echo $this->escapeUrl($language['language']) ?>">
+					<?php echo $this->e(Friendica\Directory\Utils\L10n::langToString($language['language'])) ?>
+                </a>
+            </li>
+		<?php endforeach; ?>
+    </ul>
+</div>