From 2548a592f1bf7ee342d87bbc6473acd48f2e3aa1 Mon Sep 17 00:00:00 2001
From: Alejandro Liu <alejandro_liu@hotmail.com>
Date: Mon, 27 May 2019 21:40:40 +0200
Subject: [PATCH] Address issue #58

Signed-off-by: Alejandro Liu <alejandro_liu@hotmail.com>
---
 lib/basicauth.php | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/lib/basicauth.php b/lib/basicauth.php
index bdb89ef..a4a1a0f 100644
--- a/lib/basicauth.php
+++ b/lib/basicauth.php
@@ -24,6 +24,31 @@ class OC_User_BasicAuth extends \OCA\user_external\Base {
 	 * @return true/false
 	 */
 	public function checkPassword($uid, $password) {
+		/*
+		 * Connect without user/name password to make sure
+		 * URL is indeed authenticating or not...
+		 */
+		stream_context_set_default(array(
+		  'http'=>array(
+		    'method'=>"GET",
+		  ))
+		);
+		$headers = get_headers($this->authUrl, 1);
+		if(!$headers) {
+			OC::$server->getLogger()->error(
+				'ERROR: Not possible to connect to BasicAuth Url: '.$this->authUrl,
+				['app' => 'user_external']
+			);
+			return false;
+		}
+		if (!isset($headers['WWW-Authenticate'])) {
+			OC::$server->getLogger()->error(
+				'ERROR: Mis-configured BasicAuth Url: '.$this->authUrl,
+				['app' => 'user_external']
+			);
+			return false;
+		}
+
 		stream_context_set_default(array(
 		  'http'=>array(
 		    'method'=>"GET",