From ccf98c0c22b16ccbebd3fca9b1a20b2e8b51fed7 Mon Sep 17 00:00:00 2001
From: rejas <github@veeck.de>
Date: Tue, 24 Nov 2020 21:32:16 +0100
Subject: [PATCH] Surround ical parsing with try/catch to catch unknown bugs

---
 modules/default/calendar/calendarfetcher.js | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/modules/default/calendar/calendarfetcher.js b/modules/default/calendar/calendarfetcher.js
index 7cb4434c..f6f84d71 100644
--- a/modules/default/calendar/calendarfetcher.js
+++ b/modules/default/calendar/calendarfetcher.js
@@ -76,7 +76,16 @@ const CalendarFetcher = function (url, reloadInterval, excludedEvents, maximumEn
 				return;
 			}
 
-			const data = ical.parseICS(requestData);
+			let data = [];
+
+			try {
+				data = ical.parseICS(requestData);
+			} catch (error) {
+				fetchFailedCallback(self, error.message);
+				scheduleTimer();
+				return;
+			}
+
 			const newEvents = [];
 
 			// limitFunction doesn't do much limiting, see comment re: the dates array in rrule section below as to why we need to do the filtering ourselves