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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 DateTimeInterface; |
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use Stadly\PasswordPolice\DateFormatter; |
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use Stadly\PasswordPolice\DateFormatter\DefaultFormatter; |
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use Stadly\PasswordPolice\Password; |
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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\WordFormatter\FormatterCombiner; |
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use Traversable; |
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final class GuessableDataRule implements Rule |
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{ |
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/** |
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* @var (string|DateTimeInterface)[] Guessable data. |
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*/ |
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private $guessableData; |
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/** |
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* @var WordFormatter Word formatter. |
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*/ |
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private $wordFormatter; |
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/** |
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* @var DateFormatter Date formatter. |
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*/ |
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private $dateFormatter; |
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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 (string|DateTimeInterface)[] $guessableData Guessable data. |
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* @param WordFormatter[] $wordFormatters Word formatters. |
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* @param DateFormatter|null $dateFormatter Date formatter. |
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* @param int $weight Constraint weight. |
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*/ |
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public function __construct( |
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array $guessableData = [], |
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array $wordFormatters = [], |
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?DateFormatter $dateFormatter = null, |
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int $weight = 1 |
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) { |
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$this->guessableData = $guessableData; |
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$this->wordFormatter = new FormatterCombiner($wordFormatters); |
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$this->dateFormatter = $dateFormatter ?? new DefaultFormatter(); |
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$this->weight = $weight; |
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} |
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/** |
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* Check whether a password is in compliance with the rule. |
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* |
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* @param Password|string $password Password to check. |
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* @param int|null $weight Don't consider constraints with lower weights. |
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* @return bool Whether the password is in compliance with the rule. |
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*/ |
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public function test($password, ?int $weight = 1): bool |
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{ |
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if ($weight !== null && $this->weight < $weight) { |
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return true; |
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} |
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$data = $this->getGuessableData($password); |
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return $data === null; |
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} |
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/** |
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* Validate that a password is in compliance with the rule. |
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* |
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* @param Password|string $password Password to validate. |
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* @return ValidationError|null Validation error describing why the password is not in compliance with the rule. |
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*/ |
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public function validate($password): ?ValidationError |
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{ |
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$data = $this->getGuessableData($password); |
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if ($data !== null) { |
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return new ValidationError( |
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$this->getMessage($data), |
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$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 Password|string $password Password to find guessable data in. |
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* @return string|DateTimeInterface|null Guessable data in the password. |
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*/ |
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private function getGuessableData($password) |
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{ |
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$guessableData = $this->guessableData; |
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if ($password instanceof Password) { |
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$guessableData = array_merge($guessableData, $password->getGuessableData()); |
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} |
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foreach ($this->wordFormatter->apply([(string)$password]) as $word) { |
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foreach ($guessableData as $data) { |
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if ($this->contains($word, $data)) { |
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return $data; |
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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 $password Password to check. |
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* @param string|DateTimeInterface $data Data to check. |
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* @return bool Whether the password contains the data. |
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*/ |
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private function contains(string $password, $data): bool |
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{ |
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if ($data instanceof DateTimeInterface) { |
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$strings = $this->dateFormatter->apply([$data]); |
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} else { |
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$strings = [$data]; |
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} |
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foreach ($strings as $string) { |
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if (mb_stripos($password, $string) !== false) { |
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return true; |
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} |
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} |
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return false; |
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} |
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/** |
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* @param string|DateTimeInterface $data Data that violates the constraint. |
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* @return string Message explaining the violation. |
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*/ |
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private function getMessage($data): 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 guessable data.' |
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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.