Check for href existence for links in Protocol\PortableContact

See https://github.com/friendica/friendica/issues/6918#issuecomment-495198587

diff --git a/src/Protocol/PortableContact.php b/src/Protocol/PortableContact.php
index b9c1533e6601365a53af1045fa66355895d998cd..5345cb22fce2ae182c6f155ab93e518138c08790 100644 (file)
--- a/src/Protocol/PortableContact.php
+++ b/src/Protocol/PortableContact.php
@@ -665,7 +665,7 @@ class PortableContact
                $nodeinfo2_url = '';
 
                foreach ($nodeinfo['links'] as $link) {
-                       if (!is_array($link) || empty($link['rel'])) {
+                       if (!is_array($link) || empty($link['rel']) || empty($link['href'])) {
                                Logger::log('Invalid nodeinfo format for ' . $server_url, Logger::DEBUG);
                                continue;
                        }