Install: Fix change installation language

assets/vue/components/installer/Step1.vue

@@ -15,7 +15,7 @@
         <Dropdown
           v-model="installerData.langIso"
           :filter="true"
-          :options="languages"
+          :options="availableLanguages"
           input-id="language_list"
           option-label="english_name"
           option-value="isocode"
@@ -87,6 +87,7 @@ import Dropdown from 'primevue/dropdown';
 import Button from 'primevue/button';
 
 import languages from '../../utils/languages';
+const availableLanguages = languages.filter((language) => ["en_US", "fr_FR"].includes(language.isocode))
 
 const { t } = useI18n();
 

public/main/install/index.php

@@ -66,9 +66,19 @@ putenv('APP_DEBUG=1');
 
 session_start();
 
+Container::$session = new HttpSession();
+
 require_once 'install.lib.php';
 $installationLanguage = 'en_US';
 
+if (!empty($_POST['language_list']) && !ChamiloSession::has('install_language')) {
+    $search = ['../', '\\0'];
+    $installationLanguage = str_replace($search, '', urldecode($_POST['language_list']));
+    ChamiloSession::write('install_language', $installationLanguage);
+} elseif (ChamiloSession::has('install_language')) {
+  $installationLanguage = ChamiloSession::read('install_language');
+}
+
 // Set translation
 $translator = new Translator($installationLanguage);
 $translator->addLoader('po', new PoFileLoader());
@@ -79,8 +89,6 @@ $translator->addResource(
 );
 Container::$translator = $translator;
 
-Container::$session = new HttpSession();
-
 // The function api_get_setting() might be called within the installation scripts.
 // We need to provide some limited support for it through initialization of the
 // global array-type variable $_setting.
@@ -109,14 +117,12 @@ $adminFirstName = get_lang('John');
 $loginForm = 'admin';
 $passForm = '';
 $institutionUrlForm = 'https://chamilo.org';
-$languageForm = '';
+$languageForm = $installationLanguage;
 $campusForm = 'My campus';
 $educationForm = 'Albert Einstein';
 $adminPhoneForm = '(000) 001 02 03';
 $institutionForm = 'My Organisation';
 $session_lifetime = 360000;
-//$installLanguage = isset($_SESSION['install_language']) ? $_SESSION['install_language'] : 'english';
-$installLanguage = '';
 $installationGuideLink = '../../documentation/installation_guide.html';
 
 // Setting the error reporting levels.
@@ -225,7 +231,6 @@ if (!isset($_GET['running'])) {
     $loginForm = 'admin';
     $passForm = api_generate_password(12, false);
     $institutionUrlForm = 'https://chamilo.org';
-    $languageForm = api_get_language_isocode();
     $checkEmailByHashSent = 0;
     $userMailCanBeEmpty = 1;
     $allowSelfReg = 'approval';