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<?php |
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declare(strict_types=1); |
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namespace Stadly\PasswordPolice\Rule; |
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use RuntimeException; |
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use Stadly\PasswordPolice\CharTree; |
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use Stadly\PasswordPolice\Formatter; |
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use Stadly\PasswordPolice\Formatter\Combiner; |
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use Stadly\PasswordPolice\Rule; |
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use Stadly\PasswordPolice\ValidationError; |
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use Stadly\PasswordPolice\WordList; |
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use Symfony\Contracts\Translation\LocaleAwareInterface; |
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use Symfony\Contracts\Translation\TranslatorInterface; |
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final class DictionaryRule implements Rule |
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{ |
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/** |
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* @var WordList Word list for the dictionary. |
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*/ |
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private $wordList; |
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/** |
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* @var Formatter Formatter. |
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*/ |
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private $formatter; |
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/** |
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* @var int Constraint weight. |
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*/ |
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private $weight; |
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/** |
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* @param WordList $wordList Word list for the dictionary. |
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* @param array<Formatter> $formatters Formatters. |
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* @param int $weight Constraint weight. |
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*/ |
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public function __construct(WordList $wordList, array $formatters = [], int $weight = 1) |
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{ |
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$this->wordList = $wordList; |
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$this->formatter = new Combiner($formatters); |
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$this->weight = $weight; |
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} |
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/** |
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* @return WordList Word list for the dictionary. |
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*/ |
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public function getWordList(): WordList |
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{ |
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return $this->wordList; |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function test($password, ?int $weight = null): bool |
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{ |
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if ($weight !== null && $this->weight < $weight) { |
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return true; |
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} |
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$word = $this->getDictionaryWord((string)$password); |
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return $word === null; |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function validate($password, TranslatorInterface $translator): ?ValidationError |
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{ |
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$word = $this->getDictionaryWord((string)$password); |
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if ($word !== null) { |
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return new ValidationError( |
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$this->getMessage($word, $translator), |
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$password, |
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$this, |
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$this->weight |
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); |
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} |
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return null; |
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} |
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/** |
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* @param string $password Password to find dictionary words in. |
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* @return string|null Dictionary word in the password. |
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* @throws CouldNotUseRuleException If an error occurred. |
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*/ |
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private function getDictionaryWord(string $password): ?string |
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{ |
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foreach ($this->formatter->apply(CharTree::fromString($password)) as $formattedPassword) { |
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try { |
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if ($this->wordList->contains($formattedPassword)) { |
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return $formattedPassword; |
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} |
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} catch (RuntimeException $exception) { |
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throw new CouldNotUseRuleException( |
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$this, |
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'An error occurred while using the word list: ' . $exception->getMessage(), |
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$exception |
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); |
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} |
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} |
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return null; |
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} |
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/** |
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* @param string $word Word that violates the constraint. |
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* @param TranslatorInterface&LocaleAwareInterface $translator Translator for translating messages. |
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* @return string Message explaining the violation. |
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*/ |
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private function getMessage(string $word, TranslatorInterface $translator): string |
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{ |
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return $translator->trans( |
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'The password cannot contain dictionary words.' |
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); |
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} |
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} |
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Stadly /
PasswordPolice
This check looks for parameters that have been defined for a function or method, but which are not used in the method body.