125 lines
3.8 KiB
PHP
125 lines
3.8 KiB
PHP
<?php
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/*
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* This file is part of the Symfony package.
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*
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* (c) Fabien Potencier <fabien@symfony.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace Symfony\Component\Validator\Constraints;
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use Symfony\Component\Intl\Exception\MissingResourceException;
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use Symfony\Component\Intl\Timezones;
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use Symfony\Component\Validator\Constraint;
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use Symfony\Component\Validator\ConstraintValidator;
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use Symfony\Component\Validator\Exception\UnexpectedTypeException;
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use Symfony\Component\Validator\Exception\UnexpectedValueException;
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/**
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* Validates whether a value is a valid timezone identifier.
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*
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* @author Javier Spagnoletti <phansys@gmail.com>
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* @author Hugo Hamon <hugohamon@neuf.fr>
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*/
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class TimezoneValidator extends ConstraintValidator
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{
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/**
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* {@inheritdoc}
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*/
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public function validate($value, Constraint $constraint)
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{
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if (!$constraint instanceof Timezone) {
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throw new UnexpectedTypeException($constraint, Timezone::class);
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}
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if (null === $value || '' === $value) {
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return;
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}
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if (!is_scalar($value) && !(\is_object($value) && method_exists($value, '__toString'))) {
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throw new UnexpectedValueException($value, 'string');
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}
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$value = (string) $value;
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if ($constraint->intlCompatible && 'Etc/Unknown' === \IntlTimeZone::createTimeZone($value)->getID()) {
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$this->context->buildViolation($constraint->message)
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->setParameter('{{ value }}', $this->formatValue($value))
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->setCode(Timezone::TIMEZONE_IDENTIFIER_INTL_ERROR)
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->addViolation();
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return;
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}
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if (
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\in_array($value, self::getPhpTimezones($constraint->zone, $constraint->countryCode), true) ||
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\in_array($value, self::getIntlTimezones($constraint->zone, $constraint->countryCode), true)
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) {
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return;
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}
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if ($constraint->countryCode) {
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$code = Timezone::TIMEZONE_IDENTIFIER_IN_COUNTRY_ERROR;
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} elseif (\DateTimeZone::ALL !== $constraint->zone) {
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$code = Timezone::TIMEZONE_IDENTIFIER_IN_ZONE_ERROR;
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} else {
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$code = Timezone::TIMEZONE_IDENTIFIER_ERROR;
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}
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$this->context->buildViolation($constraint->message)
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->setParameter('{{ value }}', $this->formatValue($value))
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->setCode($code)
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->addViolation();
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}
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private static function getPhpTimezones(int $zone, string $countryCode = null): array
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{
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if (null !== $countryCode) {
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try {
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return @\DateTimeZone::listIdentifiers($zone, $countryCode) ?: [];
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} catch (\ValueError $e) {
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return [];
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}
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}
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return \DateTimeZone::listIdentifiers($zone);
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}
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private static function getIntlTimezones(int $zone, string $countryCode = null): array
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{
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if (!class_exists(Timezones::class)) {
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return [];
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}
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if (null !== $countryCode) {
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try {
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return Timezones::forCountryCode($countryCode);
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} catch (MissingResourceException $e) {
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return [];
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}
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}
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$timezones = Timezones::getIds();
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if (\DateTimeZone::ALL === (\DateTimeZone::ALL & $zone)) {
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return $timezones;
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}
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$filtered = [];
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foreach ((new \ReflectionClass(\DateTimeZone::class))->getConstants() as $const => $flag) {
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if ($flag !== ($flag & $zone)) {
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continue;
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}
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$filtered[] = array_filter($timezones, static function ($id) use ($const) {
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return 0 === stripos($id, $const.'/');
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});
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}
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return $filtered ? array_merge(...$filtered) : [];
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}
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}
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