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main/inc/lib/hook/interfaces/HookConditionalLoginObserverInterface.php

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+<?php
+/* For licensing terms, see /license.txt */
+
+/**
+ * Interface HookConditionalLoginObserverInterface.
+ */
+interface HookConditionalLoginObserverInterface extends HookObserverInterface
+{
+    /**
+     * Return an associative array (callable, url) needed for Conditional Login.
+     * <code>
+     * [
+     *     'conditional_function' => function (array $userInfo) {},
+     *     'url' => '',
+     * ]
+     * </code>
+     * conditional_function returns false to redirect to the url and returns true to continue with the classical login.
+     *
+     * @return array
+     */
+    public function hookConditionalLogin(HookConditionalLoginEventInterface $hook);
+}