From 57e31fe5a7315507ccda78a1f38f79b1c355b054 Mon Sep 17 00:00:00 2001
From: wn_ <invalid@email.com>
Date: Sun, 14 Aug 2022 16:38:58 +0000
Subject: [PATCH 1/2] Handle valid HTTP responses with no response body.

---
 classes/urlhelper.php | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/classes/urlhelper.php b/classes/urlhelper.php
index bb51f5d06..f8fdd7de9 100644
--- a/classes/urlhelper.php
+++ b/classes/urlhelper.php
@@ -462,7 +462,11 @@ class UrlHelper {
 			}
 
 			if (!$contents) {
-				self::$fetch_last_error = curl_errno($ch) . " " . curl_error($ch);
+				if (curl_errno($ch) === 0) {
+					self::$fetch_last_error = 'Successful response, but no content was received.';
+				} else {
+					self::$fetch_last_error = curl_errno($ch) . " " . curl_error($ch);
+				}
 				curl_close($ch);
 				return false;
 			}
@@ -578,6 +582,11 @@ class UrlHelper {
 				return false;
 			}
 
+			if (!$data) {
+				self::$fetch_last_error = 'Successful response, but no content was received.';
+				return false;
+			}
+
 			$is_gzipped = RSSUtils::is_gzipped($data);
 
 			if ($is_gzipped && $data) {

From 830a20debf5f26fdd6f4c754a76498a19ead7d0d Mon Sep 17 00:00:00 2001
From: wn_ <invalid@email.com>
Date: Sun, 14 Aug 2022 16:52:35 +0000
Subject: [PATCH 2/2] Handle 'file_get_contents()' failure in
 'UrlHelper::fetch()'.

---
 classes/urlhelper.php | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/classes/urlhelper.php b/classes/urlhelper.php
index f8fdd7de9..cdaa6cc87 100644
--- a/classes/urlhelper.php
+++ b/classes/urlhelper.php
@@ -547,6 +547,11 @@ class UrlHelper {
 
 			$data = @file_get_contents($url, false, $context);
 
+			if ($data === false) {
+				self::$fetch_last_error = "'file_get_contents' failed.";
+				return false;
+			}
+
 			foreach ($http_response_header as $header) {
 				if (strstr($header, ": ") !== false) {
 					list ($key, $value) = explode(": ", $header);