catch exception if event date are in a wrong format

Author: Marc Vachette

src/IcalParser.php

@@ -244,7 +244,11 @@ private function parseRow($row) {
 
 		// process simple dates with timezone
 		if ($key === 'DTSTAMP' || $key === 'LAST-MODIFIED' || $key === 'CREATED' || $key === 'DTSTART' || $key === 'DTEND') {
-			$value = new \DateTime($value, ($timezone ?: $this->timezone));
+			try {
+                $value = new \DateTime($value, ($timezone ?: $this->timezone));
+            } catch (\Exception $e) {
+                $value = null;
+            }
 		}
 
 		if ($key === 'RRULE' && preg_match_all('#(?<key>[^=;]+)=(?<value>[^;]+)#', $value, $matches, PREG_SET_ORDER)) {
@@ -298,7 +302,7 @@ public function getTimezones() {
 	 */
 	public function getSortedEvents() {
 		if ($events = $this->getEvents()) {
-			usort(
+        	usort(
 				$events, function ($a, $b) {
 					return $a['DTSTART'] > $b['DTSTART'];
 				}

tests/cal/wrong_dates.ics

@@ -0,0 +1,37 @@
+BEGIN:VCALENDAR
+PRODID:-//Google Inc//Google Calendar 70.9054//EN
+VERSION:2.0
+CALSCALE:GREGORIAN
+X-WR-CALNAME:[email protected]
+X-WR-TIMEZONE:America/Los_Angeles
+BEGIN:VTIMEZONE
+TZID:America/Los_Angeles
+X-LIC-LOCATION:America/Los_Angeles
+END:VTIMEZONE
+BEGIN:VEVENT
+DTSTART;VALUE=DATE:2014929
+DTEND;VALUE=DATE:20140930
+UID:[email protected]
+CREATED:20120724T212411Z
+DESCRIPTION:
+LAST-MODIFIED:20120724T212411Z
+LOCATION:
+SEQUENCE:0
+STATUS:CONFIRMED
+SUMMARY:Really long event name thing
+TRANSP:OPAQUE
+END:VEVENT
+BEGIN:VEVENT
+DTSTART;VALUE=DATE:20140929
+DTEND;VALUE=DATE:2014930
+UID:[email protected]
+CREATED:20120724T212411Z
+DESCRIPTION:
+LAST-MODIFIED:20120724T212411Z
+LOCATION:
+SEQUENCE:0
+STATUS:CONFIRMED
+SUMMARY:Really long event name thing
+TRANSP:OPAQUE
+END:VEVENT
+END:VCALENDAR

tests/wrong_dates.phpt

@@ -0,0 +1,17 @@
+<?php
+/**
+ * @author Roman Ozana <[email protected]>
+ */
+use Tester\Assert;
+
+require_once __DIR__ . '/../vendor/autoload.php';
+\Tester\Environment::setup();
+
+$cal = new \om\IcalParser();
+$results = $cal->parseFile(__DIR__ . '/cal/wrong_dates.ics');
+$events = $cal->getSortedEvents();
+Assert::same('29.9.2014 00:00:00', $events[1]['DTSTART']->format('j.n.Y H:i:s'));
+Assert::same(null, $events[1]['DTEND']);
+
+Assert::same(null, $events[0]['DTSTART']);
+Assert::same('30.9.2014 00:00:00', $events[0]['DTEND']->format('j.n.Y H:i:s'));