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fix: (CalDav) Delete invitation link when deleting Calendars or Events #47832

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54 changes: 52 additions & 2 deletions apps/dav/lib/CalDAV/CalDavBackend.php
Original file line number Diff line number Diff line change
Expand Up @@ -178,7 +178,9 @@ class CalDavBackend extends AbstractBackend implements SyncSupport, Subscription
*/
protected array $userDisplayNames;

private string $dbObjectsTable = 'calendarobjects';
private string $dbObjectPropertiesTable = 'calendarobjects_props';
private string $dbObjectInvitationsTable = 'calendar_invitations';
private array $cachedObjects = [];

public function __construct(
Expand Down Expand Up @@ -876,6 +878,8 @@ public function deleteCalendar($calendarId, bool $forceDeletePermanently = false
$calendarData = $this->getCalendarById($calendarId);
$shares = $this->getShares($calendarId);

$this->purgeCalendarInvitations($calendarId);

$qbDeleteCalendarObjectProps = $this->db->getQueryBuilder();
$qbDeleteCalendarObjectProps->delete($this->dbObjectPropertiesTable)
->where($qbDeleteCalendarObjectProps->expr()->eq('calendarid', $qbDeleteCalendarObjectProps->createNamedParameter($calendarId)))
Expand Down Expand Up @@ -1143,7 +1147,7 @@ public function getCalendarObject($calendarId, $objectUri, int $calendarType = s
return $this->cachedObjects[$key];
}
$query = $this->db->getQueryBuilder();
$query->select(['id', 'uri', 'lastmodified', 'etag', 'calendarid', 'size', 'calendardata', 'componenttype', 'classification', 'deleted_at'])
$query->select(['id', 'uri', 'uid', 'lastmodified', 'etag', 'calendarid', 'size', 'calendardata', 'componenttype', 'classification', 'deleted_at'])
->from('calendarobjects')
->where($query->expr()->eq('calendarid', $query->createNamedParameter($calendarId)))
->andWhere($query->expr()->eq('uri', $query->createNamedParameter($objectUri)))
Expand All @@ -1165,6 +1169,7 @@ private function rowToCalendarObject(array $row): array {
return [
'id' => $row['id'],
'uri' => $row['uri'],
'uid' => $row['uid'],
'lastmodified' => $row['lastmodified'],
'etag' => '"' . $row['etag'] . '"',
'calendarid' => $row['calendarid'],
Expand Down Expand Up @@ -1485,6 +1490,8 @@ public function deleteCalendarObject($calendarId, $objectUri, $calendarType = se

$this->purgeProperties($calendarId, $data['id']);

$this->purgeObjectInvitations($data['uid']);

if ($calendarType === self::CALENDAR_TYPE_CALENDAR) {
$calendarRow = $this->getCalendarById($calendarId);
$shares = $this->getShares($calendarId);
Expand Down Expand Up @@ -1681,7 +1688,7 @@ public function calendarQuery($calendarId, array $filters, $calendarType = self:
}
}
$query = $this->db->getQueryBuilder();
$query->select(['id', 'uri', 'lastmodified', 'etag', 'calendarid', 'size', 'calendardata', 'componenttype', 'classification', 'deleted_at'])
$query->select(['id', 'uri', 'uid', 'lastmodified', 'etag', 'calendarid', 'size', 'calendardata', 'componenttype', 'classification', 'deleted_at'])
->from('calendarobjects')
->where($query->expr()->eq('calendarid', $query->createNamedParameter($calendarId)))
->andWhere($query->expr()->eq('calendartype', $query->createNamedParameter($calendarType)))
Expand Down Expand Up @@ -3542,4 +3549,47 @@ private function rowToSubscription($row, array $subscription): array {
}
return $subscription;
}

/**
* delete all invitations from a given calendar
*
* @since 31.0.0
*
* @param int $calendarId
*
* @return void
*/
protected function purgeCalendarInvitations(int $calendarId): void {
// select all calendar object uid's
$cmd = $this->db->getQueryBuilder();
$cmd->select('uid')
->from($this->dbObjectsTable)
->where($cmd->expr()->eq('calendarid', $cmd->createNamedParameter($calendarId)));
// execute command
$allIds = $cmd->executeQuery()->fetchAll(\PDO::FETCH_COLUMN);
$allIds = array_chunk($allIds, 1000);
// delete all links that match object uid's
foreach ($allIds as $chunckIds) {
$cmd = $this->db->getQueryBuilder();
$cmd->delete($this->dbObjectInvitationsTable)
->where($cmd->expr()->in('uid', $cmd->createNamedParameter($chunckIds, IQueryBuilder::PARAM_STR_ARRAY), IQueryBuilder::PARAM_STR_ARRAY));
$cmd->executeStatement();
}
}

/**
* delete all invitations from a given calendar event
*
* @since 31.0.0
*
* @param string $eventId UID of the event
*
* @return void
*/
protected function purgeObjectInvitations(string $eventId): void {
$cmd = $this->db->getQueryBuilder();
$cmd->delete($this->dbObjectInvitationsTable)
->where($cmd->expr()->eq('uid', $cmd->createNamedParameter($eventId)));
$cmd->executeStatement();
}
}
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