From 60c8668aca0d596319ca02dcfbabde7028c9b572 Mon Sep 17 00:00:00 2001
From: Hypolite Petovan <hypolite@mrpetovan.com>
Date: Fri, 8 Mar 2019 21:53:44 -0500
Subject: [PATCH] Add defaults() to url parameter in mod/follow

- Add error redirection to /contact when url param is empty
- Addresses part of https://github.com/friendica/friendica/issues/6338#issuecomment-470681556
---
 mod/follow.php | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/mod/follow.php b/mod/follow.php
index abde4abd03..404c79ea10 100644
--- a/mod/follow.php
+++ b/mod/follow.php
@@ -60,7 +60,11 @@ function follow_content(App $a)
 	}
 
 	$uid = local_user();
-	$url = Strings::escapeTags(trim($_REQUEST['url']));
+	$url = Strings::escapeTags(trim(defaults($_REQUEST, 'url', '')));
+
+	if (!$url) {
+		$a->internalRedirect($return_path);
+	}
 
 	$submit = L10n::t('Submit Request');