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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\Policy; |
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use Stadly\PasswordPolice\Rule; |
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use Stadly\PasswordPolice\ValidationError; |
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use Stadly\PasswordPolice\WordFormatter; |
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use Stadly\PasswordPolice\WordList; |
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use Traversable; |
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final class Dictionary 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 WordFormatter[] Word formatters. |
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*/ |
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private $wordFormatters; |
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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 WordFormatter[] $wordFormatters Word formatters. |
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* @param int $weight Constraint weight. |
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*/ |
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public function __construct( |
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WordList $wordList, |
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array $wordFormatters = [], |
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int $weight = 1 |
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) { |
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$this->wordList = $wordList; |
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$this->wordFormatters = $wordFormatters; |
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$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 $weight = 1): bool |
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{ |
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if ($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): ?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($word), |
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$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 Exception 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->getFormattedWords($password) as $word) { |
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try { |
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if ($this->wordList->contains($word)) { |
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return $word; |
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} |
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} catch (RuntimeException $exception) { |
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throw new Exception( |
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$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 to format. |
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* @return Traversable<string> Formatted words. May contain duplicates. |
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*/ |
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private function getFormattedWords(string $word): Traversable |
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{ |
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yield $word; |
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foreach ($this->wordFormatters as $wordFormatter) { |
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yield from $wordFormatter->apply([$word]); |
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} |
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} |
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/** |
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* @param string $word Word that violates the constraint. |
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* @return string Message explaining the violation. |
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*/ |
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private function getMessage(string $word): string |
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{ |
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$translator = Policy::getTranslator(); |
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return $translator->trans( |
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'Must not contain dictionary words.' |
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); |
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} |
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} |
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Stadly /
PasswordPolice
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