fix(caldav): Only track interactions of event organizers

Signed-off-by: Christoph Wurst <[email protected]>

apps/dav/lib/Listener/CalendarContactInteractionListener.php

@@ -142,10 +142,30 @@ private function emitFromUri(string $uri, IUser $user): void {
 	}
 
 	private function emitFromObject(VEvent $vevent, IUser $user): void {
-		if (!$vevent->ATTENDEE) {
+		$userEmail = $user->getPrimaryEMailAddress();
+		if ($userEmail === null) {
+			// This user can't be organizer
+			return;
+		}
+
+		if (!$vevent->ORGANIZER || !$vevent->ATTENDEE) {
 			// Nothing left to do
 			return;
 		}
+		$organizer = $vevent->ORGANIZER;
+		if (!($organizer instanceof Property)) {
+			return;
+		}
+		$organizerMailTo = $organizer->getValue();
+		if (strpos($organizerMailTo, 'mailto:') !== 0) {
+			// Doesn't look like an email
+			return;
+		}
+		$organizerEmail = substr($organizerMailTo, strlen('mailto:'));
+		$userEmail = $user->getPrimaryEMailAddress();
+		if ($organizerEmail !== $userEmail) {
+			return;
+		}
 
 		foreach ($vevent->ATTENDEE as $attendee) {
 			if (!($attendee instanceof Property)) {

apps/dav/tests/unit/Listener/CalendarContactInteractionListenerTest.php

@@ -135,14 +135,63 @@ public function testParseCalendarEventWithInvalidEmail(): void {
 DTSTART;TZID=Europe/Vienna:20210202T103000
 DTEND;TZID=Europe/Vienna:20210202T133000
 SUMMARY:tes
-ORGANIZER;CN=admin:mailto:[email protected]
+ORGANIZER;CN=admin:mailto:[email protected]
 ATTENDEE;CN=somethingbutnotanemail;CUTYPE=INDIVIDUAL;PARTSTAT=NEEDS-ACTION;
  ROLE=REQ-PARTICIPANT;RSVP=FALSE:mailto:somethingbutnotanemail
 DESCRIPTION:test
 END:VEVENT
 END:VCALENDAR
 EVENT]);
 		$user = $this->createMock(IUser::class);
+		$user->method('getPrimaryEMailAddress')->willReturn('[email protected]');
+		$this->userSession->expects(self::once())->method('getUser')->willReturn($user);
+		$this->eventDispatcher->expects(self::never())->method('dispatchTyped');
+		$this->logger->expects(self::never())->method('warning');
+
+		$this->listener->handle($event);
+	}
+
+	public function testParseImportedEventWithUnknownOrganizer(): void {
+		$event = new CalendarObjectCreatedEvent(123, [], [], ['calendardata' => <<<EVENT
+BEGIN:VCALENDAR
+VERSION:2.0
+CALSCALE:GREGORIAN
+PRODID:-//IDN nextcloud.com//Calendar app 2.1.3//EN
+BEGIN:VTIMEZONE
+TZID:Europe/Vienna
+BEGIN:DAYLIGHT
+TZOFFSETFROM:+0100
+TZOFFSETTO:+0200
+TZNAME:CEST
+DTSTART:19700329T020000
+RRULE:FREQ=YEARLY;BYMONTH=3;BYDAY=-1SU
+END:DAYLIGHT
+BEGIN:STANDARD
+TZOFFSETFROM:+0200
+TZOFFSETTO:+0100
+TZNAME:CET
+DTSTART:19701025T030000
+RRULE:FREQ=YEARLY;BYMONTH=10;BYDAY=-1SU
+END:STANDARD
+END:VTIMEZONE
+BEGIN:VEVENT
+CREATED:20210202T091151Z
+DTSTAMP:20210203T130231Z
+LAST-MODIFIED:20210203T130231Z
+SEQUENCE:9
+UID:b74a0c8e-93b0-447f-aed5-b679b19e874a
+DTSTART;TZID=Europe/Vienna:20210202T103000
+DTEND;TZID=Europe/Vienna:20210202T133000
+SUMMARY:tes
+ORGANIZER;CN=admin:mailto:[email protected]
+ATTENDEE;CN=somethingbutnotanemail;CUTYPE=INDIVIDUAL;PARTSTAT=NEEDS-ACTION;
+ ROLE=REQ-PARTICIPANT;RSVP=FALSE:mailto:somethingbutnotanemail
+DESCRIPTION:test
+END:VEVENT
+END:VCALENDAR
+EVENT]);
+		$user = $this->createMock(IUser::class);
+		$user->method('getPrimaryEMailAddress')->willReturn('[email protected]');
 		$this->userSession->expects(self::once())->method('getUser')->willReturn($user);
 		$this->eventDispatcher->expects(self::never())->method('dispatchTyped');
 		$this->logger->expects(self::never())->method('warning');
@@ -182,14 +231,15 @@ public function testParseCalendarEvent(): void {
 DTSTART;TZID=Europe/Vienna:20210202T103000
 DTEND;TZID=Europe/Vienna:20210202T133000
 SUMMARY:tes
-ORGANIZER;CN=admin:mailto:[email protected]
+ORGANIZER;CN=admin:mailto:[email protected]
 ATTENDEE;[email protected];CUTYPE=INDIVIDUAL;PARTSTAT=NEEDS-ACTION;
  ROLE=REQ-PARTICIPANT;RSVP=FALSE:mailto:[email protected]
 DESCRIPTION:test
 END:VEVENT
 END:VCALENDAR
 EVENT]);
 		$user = $this->createMock(IUser::class);
+		$user->method('getPrimaryEMailAddress')->willReturn('[email protected]');
 		$this->userSession->expects(self::once())->method('getUser')->willReturn($user);
 		$this->mailer->expects(self::once())->method('validateMailAddress')->willReturn(true);
 		$this->eventDispatcher->expects(self::once())