From 302070875c1f9c32704a72ba77997df7602fd1d0 Mon Sep 17 00:00:00 2001
From: Hypolite Petovan <hypolite@mrpetovan.com>
Date: Mon, 31 May 2021 00:47:03 -0400
Subject: [PATCH] Ensure nodeinfo-provided protocols are strings in
 Model\GServer::parseNodeinfo2

- https://github.com/friendica/friendica/issues/10168#issuecomment-828281803
---
 src/Model/GServer.php | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/Model/GServer.php b/src/Model/GServer.php
index 6a1a363e3..7e1d178dd 100644
--- a/src/Model/GServer.php
+++ b/src/Model/GServer.php
@@ -802,6 +802,7 @@ class GServer
 	/**
 	 * Parses Nodeinfo 2
 	 *
+	 * @see https://git.feneas.org/jaywink/nodeinfo2
 	 * @param string $nodeinfo_url address of the nodeinfo path
 	 * @return array Server data
 	 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
@@ -850,7 +851,9 @@ class GServer
 		if (!empty($nodeinfo['protocols'])) {
 			$protocols = [];
 			foreach ($nodeinfo['protocols'] as $protocol) {
-				$protocols[$protocol] = true;
+				if (is_string($protocol)) {
+					$protocols[$protocol] = true;
+				}
 			}
 
 			if (!empty($protocols['dfrn'])) {