Adding language support in the before login plugin see BT#6939

index.php

@@ -137,11 +137,16 @@ if (api_get_setting('display_categories_on_homepage') == 'true') {
 if (api_is_facebook_auth_activated() && !api_get_user_id()) {
     facebook_connect();
 }
+
+// before login plugin conditions
 $showLoginForm = true;
 if (api_is_anonymous()) {
     if (!isset($_SESSION['before_login_accepted'])) {
         if (in_array('before_login', $controller->tpl->plugin->get_installed_plugins())) {
-            $showLoginForm = false;
+            $languageToActivate = api_get_plugin_setting('before_login', 'language');
+            if (api_get_interface_language() == $languageToActivate) {
+                $showLoginForm = false;
+            }
         }
     }
 }

main/inc/lib/main_api.lib.php

@@ -3490,6 +3490,21 @@ function api_get_languages() {
     return $language_list;
 }
 
+/**
+ * Returns a list of all the languages that are made available by the admin.
+ * @return array
+ */
+function api_get_languages_to_array() {
+    $tbl_language = Database::get_main_table(TABLE_MAIN_LANGUAGE);
+    $sql = "SELECT * FROM $tbl_language WHERE available='1' ORDER BY original_name ASC";
+    $result = Database::query($sql);
+    $languages = array();
+    while ($row = Database::fetch_array($result)) {
+        $languages[$row['dokeos_folder']] = $row['original_name'];
+    }
+    return $languages;
+}
+
 /**
  * Returns the id (the database id) of a language
  * @param   string  language name (the corresponding name of the language-folder in the filesystem)

plugin/before_login/index.php

@@ -7,16 +7,25 @@ if (api_is_anonymous()) {
 
     // Only available in the index.php page
     $loginAccepted = isset($_SESSION['before_login_accepted']) ? $_SESSION['before_login_accepted'] : null;
-    $currentPage = str_replace('index.php', '', $_SERVER['REQUEST_URI']);
-    //var_dump(api_get_path(REL_PATH), $currentPage);
+    $parsedUrl = parse_url($_SERVER['REQUEST_URI']);
+    $currentPage = str_replace('index.php', '', $parsedUrl['path']);
+
     if (api_get_path(REL_PATH) !== $currentPage) {
         return null;
     }
 
+    // Hide only if the before_login_accepted session was set to ON.
     if ($loginAccepted) {
         return null;
     }
 
+    // Only available for the selected language.
+    $languageToActivate = api_get_plugin_setting('before_login', 'language');
+
+    if (api_get_interface_language() != $languageToActivate) {
+        return null;
+    }
+
     $option1 = api_get_plugin_setting('before_login', 'option1');
     $urlOption1 = api_get_plugin_setting('before_login', 'option1_url');
 

plugin/before_login/plugin.php

@@ -20,14 +20,15 @@ $plugin_info['author']      = 'Julio Montoya';
 
 // The plugin configuration.
 $form = new FormValidator('form');
+$form->addElement('select', 'language', get_lang('Language'), api_get_languages_to_array());
 
 $form->addElement('header', 'Option 1');
-$form->addElement('textarea', 'option1', 'Description');
-$form->addElement('text', 'option1_url', 'Redirect to');
+$form->addElement('textarea', 'option1', get_lang('Description'));
+$form->addElement('text', 'option1_url', get_lang('RedirectTo'));
 
 $form->addElement('header', 'Option 2');
-$form->addElement('textarea', 'option2', 'Description');
-$form->addElement('text', 'option2_url', 'Redirect to');
+$form->addElement('textarea', 'option2', get_lang('Description'));
+$form->addElement('text', 'option2_url', get_lang('RedirectTo'));
 $form->addElement('button', 'submit_button', get_lang('Save'));
 
 // Get default value for form