symfony · fabpot · Apr 6, 2019 · Apr 4, 2017
diff --git a/src/Symfony/Component/Validator/CHANGELOG.md b/src/Symfony/Component/Validator/CHANGELOG.md
@@ -4,6 +4,7 @@ CHANGELOG
 4.3.0
 -----

+ * added `Timezone` constraint
 * added `NotCompromisedPassword` constraint
 * added options `iban` and `ibanPropertyPath` to Bic constraint
 * added UATP cards support to `CardSchemeValidator`

diff --git a/src/Symfony/Component/Validator/Constraints/Timezone.php b/src/Symfony/Component/Validator/Constraints/Timezone.php
@@ -0,0 +1,51 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Validator\Constraints;
+
+use Symfony\Component\Validator\Constraint;
+use Symfony\Component\Validator\Exception\ConstraintDefinitionException;
+
+/**
+ * @Annotation
+ * @Target({"PROPERTY", "METHOD", "ANNOTATION"})
+ *
+ * @author Javier Spagnoletti <phansys@gmail.com>
+ * @author Hugo Hamon <hugohamon@neuf.fr>
+ */
+class Timezone extends Constraint
+{
+    public const TIMEZONE_IDENTIFIER_ERROR = '5ce113e6-5e64-4ea2-90fe-d2233956db13';
+    public const TIMEZONE_IDENTIFIER_IN_ZONE_ERROR = 'b57767b1-36c0-40ac-a3d7-629420c775b8';
+    public const TIMEZONE_IDENTIFIER_IN_COUNTRY_ERROR = 'c4a22222-dc92-4fc0-abb0-d95b268c7d0b';
+
+    public $zone = \DateTimeZone::ALL;
+    public $countryCode;
+    public $message = 'This value is not a valid timezone.';
+
+    protected static $errorNames = [
+        self::TIMEZONE_IDENTIFIER_ERROR => 'TIMEZONE_IDENTIFIER_ERROR',
+        self::TIMEZONE_IDENTIFIER_IN_ZONE_ERROR => 'TIMEZONE_IDENTIFIER_IN_ZONE_ERROR',
+        self::TIMEZONE_IDENTIFIER_IN_COUNTRY_ERROR => 'TIMEZONE_IDENTIFIER_IN_COUNTRY_ERROR',
+    ];
+
+    /**
+     * {@inheritdoc}
+     */
+    public function __construct(array $options = null)
+    {
+        parent::__construct($options);
+
+        if ($this->countryCode && \DateTimeZone::PER_COUNTRY !== $this->zone) {
+            throw new ConstraintDefinitionException('The option "countryCode" can only be used when "zone" option is configured with `\DateTimeZone::PER_COUNTRY`.');
+        }
+    }
+}
diff --git a/src/Symfony/Component/Validator/Constraints/TimezoneValidator.php b/src/Symfony/Component/Validator/Constraints/TimezoneValidator.php
@@ -0,0 +1,92 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Validator\Constraints;
+
+use Symfony\Component\Validator\Constraint;
+use Symfony\Component\Validator\ConstraintValidator;
+use Symfony\Component\Validator\Exception\UnexpectedTypeException;
+use Symfony\Component\Validator\Exception\UnexpectedValueException;
+
+/**
+ * Validates whether a value is a valid timezone identifier.
+ *
+ * @author Javier Spagnoletti <phansys@gmail.com>
+ * @author Hugo Hamon <hugohamon@neuf.fr>
+ */
+class TimezoneValidator extends ConstraintValidator
+{
+    /**
+     * {@inheritdoc}
+     */
+    public function validate($value, Constraint $constraint)
+    {
+        if (!$constraint instanceof Timezone) {
+            throw new UnexpectedTypeException($constraint, Timezone::class);
+        }
+
+        if (null === $value || '' === $value) {
+            return;
+        }
+
+        if (!is_scalar($value) && !(\is_object($value) && method_exists($value, '__toString'))) {
+            throw new UnexpectedValueException($value, 'string');
+        }
+
+        $value = (string) $value;
+
+        // @see: https://bugs.php.net/bug.php?id=75928
+        if ($constraint->countryCode) {
+            $timezoneIds = \DateTimeZone::listIdentifiers($constraint->zone, $constraint->countryCode);
+        } else {
+            $timezoneIds = \DateTimeZone::listIdentifiers($constraint->zone);
+        }
+
+        if ($timezoneIds && \in_array($value, $timezoneIds, true)) {
+            return;
+        }
+
+        if ($constraint->countryCode) {
+            $code = Timezone::TIMEZONE_IDENTIFIER_IN_COUNTRY_ERROR;
+        } elseif (\DateTimeZone::ALL !== $constraint->zone) {
+            $code = Timezone::TIMEZONE_IDENTIFIER_IN_ZONE_ERROR;
+        } else {
+            $code = Timezone::TIMEZONE_IDENTIFIER_ERROR;
+        }
+
+        $this->context->buildViolation($constraint->message)
+                      ->setParameter('{{ value }}', $this->formatValue($value))
+                      ->setCode($code)
+                      ->addViolation();
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getDefaultOption()
+    {
+        return 'zone';
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function formatValue($value, $format = 0)
+    {
+        $value = parent::formatValue($value, $format);
+
+        if (!$value || \DateTimeZone::PER_COUNTRY === $value) {
+            return $value;
+        }
+
+        return array_search($value, (new \ReflectionClass(\DateTimeZone::class))->getConstants(), true) ?: $value;
+    }
+}
diff --git a/src/Symfony/Component/Validator/Resources/translations/validators.de.xlf b/src/Symfony/Component/Validator/Resources/translations/validators.de.xlf
@@ -354,6 +354,10 @@
                <source>This collection should contain only unique elements.</source>
                <target>Diese Sammlung darf keine doppelten Elemente enthalten.</target>
            </trans-unit>
+            <trans-unit id="92">
+                <source>This value is not a valid timezone.</source>
+                <target>Dieser Wert ist keine gültige Zeitzone.</target>
+            </trans-unit>
        </body>
    </file>
 </xliff>
diff --git a/src/Symfony/Component/Validator/Resources/translations/validators.en.xlf b/src/Symfony/Component/Validator/Resources/translations/validators.en.xlf
@@ -354,6 +354,10 @@
                <source>This collection should contain only unique elements.</source>
                <target>This collection should contain only unique elements.</target>
            </trans-unit>
+            <trans-unit id="92">
+                <source>This value is not a valid timezone.</source>
+                <target>This value is not a valid timezone.</target>
+            </trans-unit>
        </body>
    </file>
 </xliff>
diff --git a/src/Symfony/Component/Validator/Resources/translations/validators.es.xlf b/src/Symfony/Component/Validator/Resources/translations/validators.es.xlf
@@ -330,6 +330,10 @@
                <source>This Business Identifier Code (BIC) is not associated with IBAN {{ iban }}.</source>
                <target>Este Código de Identificación Bancaria (BIC) no está asociado con el IBAN {{ iban }}.</target>
            </trans-unit>
+            <trans-unit id="92">
+                <source>This value is not a valid timezone.</source>
+                <target>Este valor no es una zona horaria válida.</target>
+            </trans-unit>
        </body>
    </file>
 </xliff>
diff --git a/src/Symfony/Component/Validator/Resources/translations/validators.fr.xlf b/src/Symfony/Component/Validator/Resources/translations/validators.fr.xlf
@@ -334,6 +334,10 @@
                <source>This value should be valid JSON.</source>
                <target>Cette valeur doit être un JSON valide.</target>
            </trans-unit>
+            <trans-unit id="92">
+                <source>This value is not a valid timezone.</source>
+                <target>Cette valeur n'est pas un fuseau horaire valide.</target>
+            </trans-unit>
        </body>
    </file>
 </xliff>
diff --git a/src/Symfony/Component/Validator/Tests/Constraints/TimezoneTest.php b/src/Symfony/Component/Validator/Tests/Constraints/TimezoneTest.php
@@ -0,0 +1,63 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Validator\Tests\Constraints;
+
+use PHPUnit\Framework\TestCase;
+use Symfony\Component\Validator\Constraints\Timezone;
+
+/**
+ * @author Javier Spagnoletti <phansys@gmail.com>
+ */
+class TimezoneTest extends TestCase
+{
+    public function testValidTimezoneConstraints()
+    {
+        $constraint = new Timezone();
+
+        $constraint = new Timezone([
+            'message' => 'myMessage',
+            'zone' => \DateTimeZone::PER_COUNTRY,
+            'countryCode' => 'AR',
+        ]);
+
+        $constraint = new Timezone([
+            'message' => 'myMessage',
+            'zone' => \DateTimeZone::ALL,
+        ]);
+
+        // Make an assertion in order to avoid this test to be marked as risky
+        $this->assertInstanceOf(Timezone::class, $constraint);
+    }
+
+    /**
+     * @expectedException \Symfony\Component\Validator\Exception\ConstraintDefinitionException
+     */
+    public function testExceptionForGroupedTimezonesByCountryWithWrongTimezone()
+    {
+        $constraint = new Timezone([
+            'message' => 'myMessage',
+            'zone' => \DateTimeZone::ALL,
+            'countryCode' => 'AR',
+        ]);
+    }
+
+    /**
+     * @expectedException \Symfony\Component\Validator\Exception\ConstraintDefinitionException
+     */
+    public function testExceptionForGroupedTimezonesByCountryWithoutTimezone()
+    {
+        $constraint = new Timezone([
+            'message' => 'myMessage',
+            'countryCode' => 'AR',
+        ]);
+    }
+}