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fix(dav): check if principal has email address before accessing it

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Ref https://github.com/nextcloud/calendar/issues/4811

Signed-off-by: Richard Steinmetz <richard@steinmetz.cloud>
This commit is contained in:
Richard Steinmetz 2023-01-18 12:10:49 +01:00 committed by backportbot-nextcloud[bot]
parent fb3261a062
commit 6728b4b30b
1 changed files with 2 additions and 2 deletions
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4
apps/dav/lib/Connector/Sabre/Principal.php
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@ -601,8 +601,8 @@ class Principal implements BackendInterface {
public function getEmailAddressesOfPrincipal(array $principal): array {
$emailAddresses = [];
if (($primaryAddress = $principal['{http://sabredav.org/ns}email-address'])) {
$emailAddresses[] = $primaryAddress;
if (isset($principal['{http://sabredav.org/ns}email-address'])) {
$emailAddresses[] = $principal['{http://sabredav.org/ns}email-address'];
}
if (isset($principal['{DAV:}alternate-URI-set'])) {