From 97c393832cdf618d934ca7b10b9ef25b39f5c2df Mon Sep 17 00:00:00 2001 From: SebastianKrupinski Date: Sun, 6 Oct 2024 18:39:36 -0400 Subject: [PATCH] fix: override iTip Broker to fix several issues Signed-off-by: SebastianKrupinski --- .../composer/composer/autoload_classmap.php | 1 + .../dav/composer/composer/autoload_static.php | 1 + apps/dav/lib/CalDAV/Schedule/Plugin.php | 7 + apps/dav/lib/CalDAV/TipBroker.php | 187 ++++++++++++++++++ apps/dav/tests/unit/CalDAV/TipBrokerTest.php | 178 +++++++++++++++++ 5 files changed, 374 insertions(+) create mode 100644 apps/dav/lib/CalDAV/TipBroker.php create mode 100644 apps/dav/tests/unit/CalDAV/TipBrokerTest.php diff --git a/apps/dav/composer/composer/autoload_classmap.php b/apps/dav/composer/composer/autoload_classmap.php index 1e0bac392819a..bb4e6daf5183b 100644 --- a/apps/dav/composer/composer/autoload_classmap.php +++ b/apps/dav/composer/composer/autoload_classmap.php @@ -105,6 +105,7 @@ 'OCA\\DAV\\CalDAV\\Security\\RateLimitingPlugin' => $baseDir . '/../lib/CalDAV/Security/RateLimitingPlugin.php', 'OCA\\DAV\\CalDAV\\Status\\StatusService' => $baseDir . '/../lib/CalDAV/Status/StatusService.php', 'OCA\\DAV\\CalDAV\\TimezoneService' => $baseDir . '/../lib/CalDAV/TimezoneService.php', + 'OCA\\DAV\\CalDAV\\TipBroker' => $baseDir . '/../lib/CalDAV/TipBroker.php', 'OCA\\DAV\\CalDAV\\Trashbin\\DeletedCalendarObject' => $baseDir . '/../lib/CalDAV/Trashbin/DeletedCalendarObject.php', 'OCA\\DAV\\CalDAV\\Trashbin\\DeletedCalendarObjectsCollection' => $baseDir . '/../lib/CalDAV/Trashbin/DeletedCalendarObjectsCollection.php', 'OCA\\DAV\\CalDAV\\Trashbin\\Plugin' => $baseDir . '/../lib/CalDAV/Trashbin/Plugin.php', diff --git a/apps/dav/composer/composer/autoload_static.php b/apps/dav/composer/composer/autoload_static.php index 4e931c10af782..af38a1bc08073 100644 --- a/apps/dav/composer/composer/autoload_static.php +++ b/apps/dav/composer/composer/autoload_static.php @@ -120,6 +120,7 @@ class ComposerStaticInitDAV 'OCA\\DAV\\CalDAV\\Security\\RateLimitingPlugin' => __DIR__ . '/..' . '/../lib/CalDAV/Security/RateLimitingPlugin.php', 'OCA\\DAV\\CalDAV\\Status\\StatusService' => __DIR__ . '/..' . '/../lib/CalDAV/Status/StatusService.php', 'OCA\\DAV\\CalDAV\\TimezoneService' => __DIR__ . '/..' . '/../lib/CalDAV/TimezoneService.php', + 'OCA\\DAV\\CalDAV\\TipBroker' => __DIR__ . '/..' . '/../lib/CalDAV/TipBroker.php', 'OCA\\DAV\\CalDAV\\Trashbin\\DeletedCalendarObject' => __DIR__ . '/..' . '/../lib/CalDAV/Trashbin/DeletedCalendarObject.php', 'OCA\\DAV\\CalDAV\\Trashbin\\DeletedCalendarObjectsCollection' => __DIR__ . '/..' . '/../lib/CalDAV/Trashbin/DeletedCalendarObjectsCollection.php', 'OCA\\DAV\\CalDAV\\Trashbin\\Plugin' => __DIR__ . '/..' . '/../lib/CalDAV/Trashbin/Plugin.php', diff --git a/apps/dav/lib/CalDAV/Schedule/Plugin.php b/apps/dav/lib/CalDAV/Schedule/Plugin.php index c6d08b0f3b77a..75c99254a3850 100644 --- a/apps/dav/lib/CalDAV/Schedule/Plugin.php +++ b/apps/dav/lib/CalDAV/Schedule/Plugin.php @@ -97,6 +97,13 @@ public function initialize(Server $server) { $server->on('afterCreateFile', [$this, 'dispatchSchedulingResponses']); } + /** + * Returns an instance of the iTip\Broker. + */ + protected function createITipBroker(): TipBroker { + return new TipBroker(); + } + /** * Allow manual setting of the object change URL * to support public write diff --git a/apps/dav/lib/CalDAV/TipBroker.php b/apps/dav/lib/CalDAV/TipBroker.php new file mode 100644 index 0000000000000..43eff124f0bb1 --- /dev/null +++ b/apps/dav/lib/CalDAV/TipBroker.php @@ -0,0 +1,187 @@ + $attendee['href'], + 'oldInstances' => $attendee['instances'], + 'newInstances' => [], + 'name' => $attendee['name'], + 'forceSend' => null, + ]; + } + foreach ($eventInfo['attendees'] as $attendee) { + if (isset($attendees[$attendee['href']])) { + $attendees[$attendee['href']]['name'] = $attendee['name']; + $attendees[$attendee['href']]['newInstances'] = $attendee['instances']; + $attendees[$attendee['href']]['forceSend'] = $attendee['forceSend']; + } else { + $attendees[$attendee['href']] = [ + 'href' => $attendee['href'], + 'oldInstances' => [], + 'newInstances' => $attendee['instances'], + 'name' => $attendee['name'], + 'forceSend' => $attendee['forceSend'], + ]; + } + } + + $messages = []; + + foreach ($attendees as $attendee) { + // An organizer can also be an attendee. We should not generate any + // messages for those. + if ($attendee['href'] === $eventInfo['organizer']) { + continue; + } + + $message = new Message(); + $message->uid = $eventInfo['uid']; + $message->component = 'VEVENT'; + $message->sequence = $eventInfo['sequence']; + $message->sender = $eventInfo['organizer']; + $message->senderName = $eventInfo['organizerName']; + $message->recipient = $attendee['href']; + $message->recipientName = $attendee['name']; + + // Creating the new iCalendar body. + $icalMsg = new VCalendar(); + + foreach ($calendar->select('VTIMEZONE') as $timezone) { + $icalMsg->add(clone $timezone); + } + // If there are no instances the attendee is a part of, it means + // the attendee was removed and we need to send them a CANCEL message. + // Also If the meeting STATUS property was changed to CANCELLED + // we need to send the attendee a CANCEL message. + if (!$attendee['newInstances'] || $eventInfo['status'] === 'CANCELLED') { + + $message->method = $icalMsg->METHOD = 'CANCEL'; + $message->significantChange = true; + // clone base event + $event = clone $eventInfo['instances']['master']; + // alter some properties + unset($event->ATTENDEE); + $event->add('ATTENDEE', $attendee['href'], ['CN' => $attendee['name'],]); + $event->DTSTAMP = gmdate('Ymd\\THis\\Z'); + $event->SEQUENCE = $message->sequence; + $icalMsg->add($event); + + } else { + // The attendee gets the updated event body + $message->method = $icalMsg->METHOD = 'REQUEST'; + + // We need to find out that this change is significant. If it's + // not, systems may opt to not send messages. + // + // We do this based on the 'significantChangeHash' which is + // some value that changes if there's a certain set of + // properties changed in the event, or simply if there's a + // difference in instances that the attendee is invited to. + + $oldAttendeeInstances = array_keys($attendee['oldInstances']); + $newAttendeeInstances = array_keys($attendee['newInstances']); + + $message->significantChange = + $attendee['forceSend'] === 'REQUEST' || + count($oldAttendeeInstances) !== count($newAttendeeInstances) || + count(array_diff($oldAttendeeInstances, $newAttendeeInstances)) > 0 || + $oldEventInfo['significantChangeHash'] !== $eventInfo['significantChangeHash']; + + foreach ($attendee['newInstances'] as $instanceId => $instanceInfo) { + $currentEvent = clone $eventInfo['instances'][$instanceId]; + if ($instanceId === 'master') { + // We need to find a list of events that the attendee + // is not a part of to add to the list of exceptions. + $exceptions = []; + foreach ($eventInfo['instances'] as $instanceId => $vevent) { + if (!isset($attendee['newInstances'][$instanceId])) { + $exceptions[] = $instanceId; + } + } + + // If there were exceptions, we need to add it to an + // existing EXDATE property, if it exists. + if ($exceptions) { + if (isset($currentEvent->EXDATE)) { + $currentEvent->EXDATE->setParts(array_merge( + $currentEvent->EXDATE->getParts(), + $exceptions + )); + } else { + $currentEvent->EXDATE = $exceptions; + } + } + + // Cleaning up any scheduling information that + // shouldn't be sent along. + unset($currentEvent->ORGANIZER['SCHEDULE-FORCE-SEND']); + unset($currentEvent->ORGANIZER['SCHEDULE-STATUS']); + + foreach ($currentEvent->ATTENDEE as $attendee) { + unset($attendee['SCHEDULE-FORCE-SEND']); + unset($attendee['SCHEDULE-STATUS']); + + // We're adding PARTSTAT=NEEDS-ACTION to ensure that + // iOS shows an "Inbox Item" + if (!isset($attendee['PARTSTAT'])) { + $attendee['PARTSTAT'] = 'NEEDS-ACTION'; + } + } + } + + $currentEvent->DTSTAMP = gmdate('Ymd\\THis\\Z'); + $icalMsg->add($currentEvent); + } + } + + $message->message = $icalMsg; + $messages[] = $message; + } + + return $messages; + } + +} diff --git a/apps/dav/tests/unit/CalDAV/TipBrokerTest.php b/apps/dav/tests/unit/CalDAV/TipBrokerTest.php new file mode 100644 index 0000000000000..3a8e240c1d806 --- /dev/null +++ b/apps/dav/tests/unit/CalDAV/TipBrokerTest.php @@ -0,0 +1,178 @@ +broker = new TipBroker(); + // construct calendar with a 1 hour event and same start/end time zones + $this->vCalendar1a = new VCalendar(); + /** @var VEvent $vEvent */ + $vEvent = $this->vCalendar1a->add('VEVENT', []); + $vEvent->add('UID', '96a0e6b1-d886-4a55-a60d-152b31401dcc'); + $vEvent->add('DTSTAMP', '20240701T000000Z'); + $vEvent->add('CREATED', '20240701T000000Z'); + $vEvent->add('LAST-MODIFIED', '20240701T000000Z'); + $vEvent->add('SEQUENCE', '1'); + $vEvent->add('STATUS', 'CONFIRMED'); + $vEvent->add('DTSTART', '20240701T080000', ['TZID' => 'America/Toronto']); + $vEvent->add('DTEND', '20240701T090000', ['TZID' => 'America/Toronto']); + $vEvent->add('SUMMARY', 'Test Event'); + $vEvent->add('ORGANIZER', 'mailto:organizer@testing.com', ['CN' => 'Organizer']); + $vEvent->add('ATTENDEE', 'mailto:attendee1@testing.com', [ + 'CN' => 'Attendee One', + 'CUTYPE' => 'INDIVIDUAL', + 'PARTSTAT' => 'NEEDS-ACTION', + 'ROLE' => 'REQ-PARTICIPANT', + 'RSVP' => 'TRUE' + ]); + } + + public function testParseEventForOrganizerOnCreate(): void { + + // construct calendar and generate event info for newly created event with one attendee + $calendar = clone $this->vCalendar1a; + $previousEventInfo = [ + 'organizer' => null, + 'significantChangeHash' => '', + 'attendees' => [], + ]; + $currentEventInfo = $this->invokePrivate($this->broker, 'parseEventInfo', [$calendar]); + // test iTip generation + $messages = $this->invokePrivate($this->broker, 'parseEventForOrganizer', [$calendar, $currentEventInfo, $previousEventInfo]); + $this->assertCount(1, $messages); + $this->assertEquals('REQUEST', $messages[0]->method); + $this->assertEquals($calendar->VEVENT->ORGANIZER->getValue(), $messages[0]->sender); + $this->assertEquals($calendar->VEVENT->ATTENDEE[0]->getValue(), $messages[0]->recipient); + + } + + public function testParseEventForOrganizerOnModify(): void { + + // construct calendar and generate event info for modified event with one attendee + $calendar = clone $this->vCalendar1a; + $previousEventInfo = $this->invokePrivate($this->broker, 'parseEventInfo', [$calendar]); + $calendar->VEVENT->{'LAST-MODIFIED'}->setValue('20240701T020000Z'); + $calendar->VEVENT->SEQUENCE->setValue(2); + $calendar->VEVENT->SUMMARY->setValue('Test Event Modified'); + $currentEventInfo = $this->invokePrivate($this->broker, 'parseEventInfo', [$calendar]); + // test iTip generation + $messages = $this->invokePrivate($this->broker, 'parseEventForOrganizer', [$calendar, $currentEventInfo, $previousEventInfo]); + $this->assertCount(1, $messages); + $this->assertEquals('REQUEST', $messages[0]->method); + $this->assertEquals($calendar->VEVENT->ORGANIZER->getValue(), $messages[0]->sender); + $this->assertEquals($calendar->VEVENT->ATTENDEE[0]->getValue(), $messages[0]->recipient); + + } + + public function testParseEventForOrganizerOnDelete(): void { + + // construct calendar and generate event info for modified event with one attendee + $calendar = clone $this->vCalendar1a; + $previousEventInfo = $this->invokePrivate($this->broker, 'parseEventInfo', [$calendar]); + $currentEventInfo = $previousEventInfo; + $currentEventInfo['attendees'] = []; + ++$currentEventInfo['sequence']; + // test iTip generation + $messages = $this->invokePrivate($this->broker, 'parseEventForOrganizer', [$calendar, $currentEventInfo, $previousEventInfo]); + $this->assertCount(1, $messages); + $this->assertEquals('CANCEL', $messages[0]->method); + $this->assertEquals($calendar->VEVENT->ORGANIZER->getValue(), $messages[0]->sender); + $this->assertEquals($calendar->VEVENT->ATTENDEE[0]->getValue(), $messages[0]->recipient); + + } + + public function testParseEventForOrganizerOnStatusCancelled(): void { + + // construct calendar and generate event info for modified event with one attendee + $calendar = clone $this->vCalendar1a; + $previousEventInfo = $this->invokePrivate($this->broker, 'parseEventInfo', [$calendar]); + $calendar->VEVENT->{'LAST-MODIFIED'}->setValue('20240701T020000Z'); + $calendar->VEVENT->SEQUENCE->setValue(2); + $calendar->VEVENT->STATUS->setValue('CANCELLED'); + $currentEventInfo = $this->invokePrivate($this->broker, 'parseEventInfo', [$calendar]); + // test iTip generation + $messages = $this->invokePrivate($this->broker, 'parseEventForOrganizer', [$calendar, $currentEventInfo, $previousEventInfo]); + $this->assertCount(1, $messages); + $this->assertEquals('CANCEL', $messages[0]->method); + $this->assertEquals($calendar->VEVENT->ORGANIZER->getValue(), $messages[0]->sender); + $this->assertEquals($calendar->VEVENT->ATTENDEE[0]->getValue(), $messages[0]->recipient); + + } + + public function testParseEventForOrganizerOnAddAttendee(): void { + + // construct calendar and generate event info for modified event with two attendees + $calendar = clone $this->vCalendar1a; + $previousEventInfo = $this->invokePrivate($this->broker, 'parseEventInfo', [$calendar]); + $calendar->VEVENT->{'LAST-MODIFIED'}->setValue('20240701T020000Z'); + $calendar->VEVENT->SEQUENCE->setValue(2); + $calendar->VEVENT->add('ATTENDEE', 'mailto:attendee2@testing.com', [ + 'CN' => 'Attendee Two', + 'CUTYPE' => 'INDIVIDUAL', + 'PARTSTAT' => 'NEEDS-ACTION', + 'ROLE' => 'REQ-PARTICIPANT', + 'RSVP' => 'TRUE' + ]); + $currentEventInfo = $this->invokePrivate($this->broker, 'parseEventInfo', [$calendar]); + // test iTip generation + $messages = $this->invokePrivate($this->broker, 'parseEventForOrganizer', [$calendar, $currentEventInfo, $previousEventInfo]); + $this->assertCount(2, $messages); + $this->assertEquals('REQUEST', $messages[0]->method); + $this->assertEquals($calendar->VEVENT->ORGANIZER->getValue(), $messages[0]->sender); + $this->assertEquals($calendar->VEVENT->ATTENDEE[0]->getValue(), $messages[0]->recipient); + $this->assertEquals('REQUEST', $messages[1]->method); + $this->assertEquals($calendar->VEVENT->ORGANIZER->getValue(), $messages[1]->sender); + $this->assertEquals($calendar->VEVENT->ATTENDEE[1]->getValue(), $messages[1]->recipient); + + } + + public function testParseEventForOrganizerOnRemoveAttendee(): void { + + // construct calendar and generate event info for modified event with two attendees + $calendar = clone $this->vCalendar1a; + $calendar->VEVENT->add('ATTENDEE', 'mailto:attendee2@testing.com', [ + 'CN' => 'Attendee Two', + 'CUTYPE' => 'INDIVIDUAL', + 'PARTSTAT' => 'NEEDS-ACTION', + 'ROLE' => 'REQ-PARTICIPANT', + 'RSVP' => 'TRUE' + ]); + $previousEventInfo = $this->invokePrivate($this->broker, 'parseEventInfo', [$calendar]); + $calendar->VEVENT->{'LAST-MODIFIED'}->setValue('20240701T020000Z'); + $calendar->VEVENT->SEQUENCE->setValue(2); + $calendar->VEVENT->remove('ATTENDEE'); + $calendar->VEVENT->add('ATTENDEE', 'mailto:attendee1@testing.com', [ + 'CN' => 'Attendee One', + 'CUTYPE' => 'INDIVIDUAL', + 'PARTSTAT' => 'NEEDS-ACTION', + 'ROLE' => 'REQ-PARTICIPANT', + 'RSVP' => 'TRUE' + ]); + $currentEventInfo = $this->invokePrivate($this->broker, 'parseEventInfo', [$calendar]); + // test iTip generation + $messages = $this->invokePrivate($this->broker, 'parseEventForOrganizer', [$calendar, $currentEventInfo, $previousEventInfo]); + $this->assertCount(2, $messages); + $this->assertEquals('REQUEST', $messages[0]->method); + $this->assertEquals($calendar->VEVENT->ORGANIZER->getValue(), $messages[0]->sender); + $this->assertEquals($calendar->VEVENT->ATTENDEE[0]->getValue(), $messages[0]->recipient); + $this->assertEquals('CANCEL', $messages[1]->method); + $this->assertEquals($calendar->VEVENT->ORGANIZER->getValue(), $messages[1]->sender); + $this->assertEquals('mailto:attendee2@testing.com', $messages[1]->recipient); + + } + +}