Admin: add config "extldap_config" that overwrites the auth.conf.php settings

BT#19295

app/config/auth.conf.dist.php

@@ -70,7 +70,10 @@ $extldap_config = array(
   'user_search_import_all_users' => 'uid=*'
 );
 
-
+$ldapConfig = api_get_configuration_value('extldap_config');
+if (!empty($ldapConfig)) {
+    $extldap_config = $ldapConfig;
+}
 
 /**
  * Correspondance array between chamilo user info and ldap user info

main/install/configuration.dist.php

@@ -2003,6 +2003,9 @@ VALUES (21, 13, 'send_notification_at_a_specific_date', 'Send notification at a
 // Ckeditor settings.
 //$_configuration['editor_settings'] = ['config' => ['youtube_responsive' => true]];
 
+// Overwrites the app/config/auth.conf.php settings
+//$_configuration['extldap_config'] = ['host' => '', 'port' => ''];
+
 // KEEP THIS AT THE END
 // -------- Custom DB changes
 // Add user activation by confirmation email