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Spomkyfabpot
Spomky
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fabpot
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[Validator] New PasswordStrength constraint
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6 files changed

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‎CHANGELOG.md‎

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* Add `Uuid::TIME_BASED_VERSIONS` to match that a UUID being validated embeds a timestamp
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* Add the `pattern` parameter in violations of the `Regex` constraint
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* Add a `NoSuspiciousCharacters` constraint to validate a string is not a spoofing attempt
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* Add a `PasswordStrength` constraint to check the strength of a password (requires `bjeavons/zxcvbn-php` library)
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* Add the `countUnit` option to the `Length` constraint to allow counting the string length either by code points (like before, now the default setting `Length::COUNT_CODEPOINTS`), bytes (`Length::COUNT_BYTES`) or graphemes (`Length::COUNT_GRAPHEMES`)
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* Add the `filenameMaxLength` option to the `File` constraint
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* Add the `exclude` option to the `Cascade` constraint

‎Constraints/PasswordStrength.php‎

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<?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 <[email protected]>
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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\Validator\Constraint;
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use Symfony\Component\Validator\Exception\ConstraintDefinitionException;
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use Symfony\Component\Validator\Exception\LogicException;
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use ZxcvbnPhp\Zxcvbn;
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/**
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* @Annotation
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*
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* @Target({"PROPERTY", "METHOD", "ANNOTATION"})
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*
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* @author Florent Morselli <[email protected]>
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*/
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#[\Attribute(\Attribute::TARGET_PROPERTY | \Attribute::TARGET_METHOD | \Attribute::IS_REPEATABLE)]
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final class PasswordStrength extends Constraint
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{
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public const PASSWORD_STRENGTH_ERROR = '4234df00-45dd-49a4-b303-a75dbf8b10d8';
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public const RESTRICTED_USER_INPUT_ERROR = 'd187ff45-bf23-4331-aa87-c24a36e9b400';
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protected const ERROR_NAMES = [
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self::PASSWORD_STRENGTH_ERROR => 'PASSWORD_STRENGTH_ERROR',
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self::RESTRICTED_USER_INPUT_ERROR => 'RESTRICTED_USER_INPUT_ERROR',
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];
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public string $lowStrengthMessage = 'The password strength is too low. Please use a stronger password.';
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public int $minScore = 2;
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public string $restrictedDataMessage = 'The password contains the following restricted data: {{ wordList }}.';
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/**
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* @var array<string>
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*/
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public array $restrictedData = [];
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public function __construct(mixed $options = null, array $groups = null, mixed $payload = null)
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{
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if (!class_exists(Zxcvbn::class)) {
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throw new LogicException(sprintf('The "%s" class requires the "bjeavons/zxcvbn-php" library. Try running "composer require bjeavons/zxcvbn-php".', self::class));
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}
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if (isset($options['minScore']) && (!\is_int($options['minScore']) || $options['minScore'] < 1 || $options['minScore'] > 4)) {
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throw new ConstraintDefinitionException(sprintf('The parameter "minScore" of the "%s" constraint must be an integer between 1 and 4.', static::class));
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}
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if (isset($options['restrictedData'])) {
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array_walk($options['restrictedData'], static function (mixed $value): void {
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if (!\is_string($value)) {
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throw new ConstraintDefinitionException(sprintf('The parameter "restrictedData" of the "%s" constraint must be a list of strings.', static::class));
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}
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});
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}
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parent::__construct($options, $groups, $payload);
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}
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}

‎Constraints/PasswordStrengthValidator.php‎

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<?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 <[email protected]>
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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\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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use ZxcvbnPhp\Matchers\DictionaryMatch;
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use ZxcvbnPhp\Matchers\MatchInterface;
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use ZxcvbnPhp\Zxcvbn;
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final class PasswordStrengthValidator extends ConstraintValidator
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{
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public function validate(#[\SensitiveParameter] mixed $value, Constraint $constraint): void
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{
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if (!$constraint instanceof PasswordStrength) {
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throw new UnexpectedTypeException($constraint, PasswordStrength::class);
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}
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if (null === $value) {
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return;
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}
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if (!\is_string($value)) {
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throw new UnexpectedValueException($value, 'string');
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}
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$zxcvbn = new Zxcvbn();
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$strength = $zxcvbn->passwordStrength($value, $constraint->restrictedData);
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if ($strength['score'] < $constraint->minScore) {
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$this->context->buildViolation($constraint->lowStrengthMessage)
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->setCode(PasswordStrength::PASSWORD_STRENGTH_ERROR)
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->addViolation();
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}
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$wordList = $this->findRestrictedUserInputs($strength['sequence'] ?? []);
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if (0 !== \count($wordList)) {
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$this->context->buildViolation($constraint->restrictedDataMessage, [
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'{{ wordList }}' => implode(', ', $wordList),
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])
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->setCode(PasswordStrength::RESTRICTED_USER_INPUT_ERROR)
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->addViolation();
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}
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}
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/**
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* @param array<MatchInterface> $sequence
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*
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* @return array<string>
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*/
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private function findRestrictedUserInputs(array $sequence): array
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{
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$found = [];
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foreach ($sequence as $item) {
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if (!$item instanceof DictionaryMatch) {
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continue;
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}
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if ('user_inputs' === $item->dictionaryName) {
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$found[] = $item->token;
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}
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}
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return $found;
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}
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}

‎Tests/Constraints/PasswordStrengthTest.php‎

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<?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 <[email protected]>
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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\Tests\Constraints;
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use PHPUnit\Framework\TestCase;
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use Symfony\Component\Validator\Constraints\PasswordStrength;
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use Symfony\Component\Validator\Exception\ConstraintDefinitionException;
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class PasswordStrengthTest extends TestCase
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{
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public function testConstructor()
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{
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$constraint = new PasswordStrength();
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$this->assertEquals(2, $constraint->minScore);
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$this->assertEquals([], $constraint->restrictedData);
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}
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public function testConstructorWithParameters()
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{
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$constraint = new PasswordStrength([
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'minScore' => 3,
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'restrictedData' => ['foo', 'bar'],
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]);
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$this->assertEquals(3, $constraint->minScore);
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$this->assertEquals(['foo', 'bar'], $constraint->restrictedData);
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}
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public function testInvalidScoreOfZero()
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{
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$this->expectException(ConstraintDefinitionException::class);
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$this->expectExceptionMessage('The parameter "minScore" of the "Symfony\Component\Validator\Constraints\PasswordStrength" constraint must be an integer between 1 and 4.');
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new PasswordStrength(['minScore' => 0]);
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}
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public function testInvalidScoreOfFive()
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{
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$this->expectException(ConstraintDefinitionException::class);
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$this->expectExceptionMessage('The parameter "minScore" of the "Symfony\Component\Validator\Constraints\PasswordStrength" constraint must be an integer between 1 and 4.');
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new PasswordStrength(['minScore' => 5]);
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}
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public function testInvalidRestrictedData()
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{
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$this->expectException(ConstraintDefinitionException::class);
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$this->expectExceptionMessage('The parameter "restrictedData" of the "Symfony\Component\Validator\Constraints\PasswordStrength" constraint must be a list of strings.');
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new PasswordStrength(['restrictedData' => [123]]);
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}
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}

‎Tests/Constraints/PasswordStrengthValidatorTest.php‎

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<?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 <[email protected]>
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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\Tests\Constraints;
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use Symfony\Component\Validator\Constraints\PasswordStrength;
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use Symfony\Component\Validator\Constraints\PasswordStrengthValidator;
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use Symfony\Component\Validator\Test\ConstraintValidatorTestCase;
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class PasswordStrengthValidatorTest extends ConstraintValidatorTestCase
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{
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protected function createValidator(): PasswordStrengthValidator
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{
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return new PasswordStrengthValidator();
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}
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/**
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* @dataProvider getValidValues
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*/
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public function testValidValues(string $value)
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{
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$this->validator->validate($value, new PasswordStrength());
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$this->assertNoViolation();
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}
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public static function getValidValues(): iterable
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{
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yield ['This 1s a very g00d Pa55word! ;-)'];
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}
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/**
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* @dataProvider provideInvalidConstraints
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*/
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public function testThePasswordIsWeak(PasswordStrength $constraint, string $password, string $expectedMessage, string $expectedCode, array $parameters = [])
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{
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$this->validator->validate($password, $constraint);
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$this->buildViolation($expectedMessage)
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->setCode($expectedCode)
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->setParameters($parameters)
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->assertRaised();
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}
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public static function provideInvalidConstraints(): iterable
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{
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yield [
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new PasswordStrength(),
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'password',
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'The password strength is too low. Please use a stronger password.',
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PasswordStrength::PASSWORD_STRENGTH_ERROR,
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];
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yield [
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new PasswordStrength([
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'minScore' => 4,
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]),
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'Good password?',
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'The password strength is too low. Please use a stronger password.',
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PasswordStrength::PASSWORD_STRENGTH_ERROR,
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];
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yield [
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new PasswordStrength([
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'restrictedData' => ['symfony'],
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]),
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'SyMfONY-framework-john',
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'The password contains the following restricted data: {{ wordList }}.',
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PasswordStrength::RESTRICTED_USER_INPUT_ERROR,
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[
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'{{ wordList }}' => 'SyMfONY',
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],
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];
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}
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}

‎composer.json‎

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"symfony/property-info": "^5.4|^6.0",
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"symfony/translation": "^5.4|^6.0",
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"doctrine/annotations": "^1.13|^2",
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"egulias/email-validator": "^2.1.10|^3|^4"
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"egulias/email-validator": "^2.1.10|^3|^4",
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"bjeavons/zxcvbn-php": "^1.0"
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},
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"conflict": {
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"doctrine/annotations": "<1.13",

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