From a377d5c981471f86c0d0c121be799aa0868e220e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Tobias=20Kapp=C3=A9?= <tobias.kappe@gmail.com>
Date: Sun, 12 Aug 2018 16:17:13 +0100
Subject: [PATCH] Determine language for atom entry without a loop.

---
 classes/feeditem/atom.php | 14 ++++++++------
 1 file changed, 8 insertions(+), 6 deletions(-)

diff --git a/classes/feeditem/atom.php b/classes/feeditem/atom.php
index 6e7a904f8..ee5591757 100644
--- a/classes/feeditem/atom.php
+++ b/classes/feeditem/atom.php
@@ -1,5 +1,6 @@
 <?php
 class FeedItem_Atom extends FeedItem_Common {
+	const NS_XML = "http://www.w3.org/XML/1998/namespace";
 
 	function get_id() {
 		$id = $this->elem->getElementsByTagName("id")->item(0);
@@ -198,12 +199,13 @@ class FeedItem_Atom extends FeedItem_Common {
 	}
 
 	function get_language() {
-		$elem = $this->elem;
-		do {
-			$lang = $elem->getAttributeNS("http://www.w3.org/XML/1998/namespace", "lang");
-			$elem = $elem->parentNode;
-		} while (empty($lang) && $elem instanceof DOMElement);
+		$lang = $this->elem->getAttributeNS(self::NS_XML, "lang");
 
-		return $lang;
+		if (!empty($lang)) {
+			return $lang;
+		} else {
+			// Fall back to the language declared on the feed, if any.
+			return $this->doc->firstChild->getAttributeNS(self::NS_XML, "lang");
+		}
 	}
 }