N°3078 - Fix error on login while in maintenance mode

Fix infinite loop on login failure

core/plugininstanciationmanager.class.inc.php

@@ -0,0 +1,30 @@
+<?php
+/**
+ * @copyright   Copyright (C) 2010-2020 Combodo SARL
+ * @license     http://opensource.org/licenses/AGPL-3.0
+ */
+
+
+class PluginInstanciationManager
+{
+	public function InstantiatePlugins($m_aExtensionClassNames, $sInterface)
+	{
+		$newPerInstanceClasses = array();
+		if (array_key_exists($sInterface, $m_aExtensionClassNames))
+		{
+			foreach ($m_aExtensionClassNames[$sInterface] as $sClassName)
+			{
+				if (class_exists($sClassName))
+				{
+					$class = new ReflectionClass($sClassName);
+
+					if ($class->isInstantiable())
+					{
+						$newPerInstanceClasses[$sClassName] = new $sClassName();
+					}
+				}
+			}
+		}
+		return $newPerInstanceClasses;
+	}
+}