From 801b88a9820a9999a6db91a26656ff757a9e0406 Mon Sep 17 00:00:00 2001
From: Matthew Exon <github.mexon@spamgourmet.com>
Date: Sun, 29 Sep 2019 22:22:52 +0200
Subject: [PATCH] [mailstream] Check for malformed image URLs and do not
 attempt to attach them

---
 mailstream/mailstream.php | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/mailstream/mailstream.php b/mailstream/mailstream.php
index 563dd906..a58dfc1c 100644
--- a/mailstream/mailstream.php
+++ b/mailstream/mailstream.php
@@ -166,6 +166,9 @@ function mailstream_do_images($a, &$item, &$attachments) {
 	preg_match_all("/\[img\=([^\]]*)\]([^[]*)\[\/img\]/ism", $item["body"], $matches3);
 	foreach (array_merge($matches1[3], $matches2[1], $matches3[1]) as $url) {
 		$components = parse_url($url);
+		if (!$components) {
+			continue;
+		}
 		$cookiejar = tempnam(get_temppath(), 'cookiejar-mailstream-');
 		$curlResult = Network::fetchUrlFull($url, true, 0, '', $cookiejar);
 		$attachments[$url] = [