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<?php
/**
* SPDX-FileCopyrightText: 2024 Nextcloud GmbH and Nextcloud contributors
* SPDX-License-Identifier: AGPL-3.0-or-later
*/
namespace OCA\User_LDAP\Service;
use DateTimeImmutable;
use Exception;
use InvalidArgumentException;
class BirthdateParserService {
/**
* Try to parse the birthdate from LDAP.
* Supports LDAP's generalized time syntax, YYYYMMDD and YYYY-MM-DD.
*
* @throws InvalidArgumentException If the format of then given date is unknown
*/
public function parseBirthdate(string $value): DateTimeImmutable {
// Minimum LDAP generalized date is "1994121610Z" with 11 chars
// While maximum other format is "1994-12-16" with 10 chars
if (strlen($value) > strlen('YYYY-MM-DD')) {
// Probably LDAP generalized time syntax
$value = substr($value, 0, 8);
}
// Should be either YYYYMMDD or YYYY-MM-DD
if (!preg_match('/^(\d{8}|\d{4}-\d{2}-\d{2})$/', $value)) {
throw new InvalidArgumentException("Unknown date format: $value");
}
try {
return new DateTimeImmutable($value);
} catch (Exception $e) {
throw new InvalidArgumentException(
"Unknown date format: $value",
0,
$e,
);
}
}
}
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