Add empty entry author if contact query fails in DFRN

- Addresses https://github.com/friendica/friendica/issues/6338#issuecomment-462722599

diff --git a/src/Protocol/DFRN.php b/src/Protocol/DFRN.php
index 544e77fa81cf02780742820a37acf1ef170126e5..e30f02756345c804916a8be4bc3cc339934e02aa 100644 (file)
--- a/src/Protocol/DFRN.php
+++ b/src/Protocol/DFRN.php
@@ -763,31 +763,33 @@ class DFRN
         */
        private static function addEntryAuthor(DOMDocument $doc, $element, $contact_url, $item)
        {
-               $contact = Contact::getDetailsByURL($contact_url, $item["uid"]);
-
                $author = $doc->createElement($element);
-               XML::addElement($doc, $author, "name", $contact["name"]);
-               XML::addElement($doc, $author, "uri", $contact["url"]);
-               XML::addElement($doc, $author, "dfrn:handle", $contact["addr"]);
 
-               /// @Todo
-               /// - Check real image type and image size
-               /// - Check which of these boths elements we should use
-               $attributes = [
+               $contact = Contact::getDetailsByURL($contact_url, $item["uid"]);
+               if (!empty($contact)) {
+                       XML::addElement($doc, $author, "name", $contact["name"]);
+                       XML::addElement($doc, $author, "uri", $contact["url"]);
+                       XML::addElement($doc, $author, "dfrn:handle", $contact["addr"]);
+
+                       /// @Todo
+                       /// - Check real image type and image size
+                       /// - Check which of these boths elements we should use
+                       $attributes = [
                                "rel" => "photo",
                                "type" => "image/jpeg",
                                "media:width" => 80,
                                "media:height" => 80,
                                "href" => $contact["photo"]];
-               XML::addElement($doc, $author, "link", "", $attributes);
+                       XML::addElement($doc, $author, "link", "", $attributes);
 
-               $attributes = [
+                       $attributes = [
                                "rel" => "avatar",
                                "type" => "image/jpeg",
                                "media:width" => 80,
                                "media:height" => 80,
                                "href" => $contact["photo"]];
-               XML::addElement($doc, $author, "link", "", $attributes);
+                       XML::addElement($doc, $author, "link", "", $attributes);
+               }
 
                return $author;
        }