From 98b0f0f8badb4bf36dec69f41435143fab48d31d Mon Sep 17 00:00:00 2001
From: teromene <teromene@teromene.fr>
Date: Thu, 12 Oct 2017 17:14:34 +0100
Subject: [PATCH] [Core] Verify the presence of the array keys before accessing
 them. Fixes  #588

---
 index.php | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/index.php b/index.php
index ec4007f2..799980b5 100644
--- a/index.php
+++ b/index.php
@@ -132,8 +132,8 @@ try {
 		$whitelist_selection = array_map('strtolower', $whitelist_selection);
 	}
 
-	$action = $params['action'];
-	$bridge = $params['bridge'];
+	$action = array_key_exists('action', $params) ? $params['action'] : null;
+	$bridge = array_key_exists('bridge', $params) ? $params['bridge'] : null;
 
 	if($action === 'display' && !empty($bridge)) {
 		// DEPRECATED: 'nameBridge' scheme is replaced by 'name' in bridge parameter values
@@ -160,7 +160,7 @@ try {
 		// Data retrieval
 		$bridge = Bridge::create($bridge);
 
-		$noproxy = filter_var($params['_noproxy'], FILTER_VALIDATE_BOOLEAN);
+		$noproxy = array_key_exists('_noproxy', $params) && filter_var($params['_noproxy'], FILTER_VALIDATE_BOOLEAN);
 		if(defined('PROXY_URL') && PROXY_BYBRIDGE && $noproxy) {
 			define('NOPROXY', true);
 		}