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<?php |
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namespace Palladium\Entity; |
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use Palladium\Exception\InvalidCookieToken; |
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class CookieIdentity extends Identity |
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{ |
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const SERIES_SIZE = 16; |
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const KEY_SIZE = 32; |
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private $series; |
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private $key; |
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private $hash; |
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protected $type = Identity::TYPE_COOKIE; |
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public function setSeries($series) |
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{ |
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if (empty($series)) { |
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$this->series = null; |
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return; |
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} |
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$this->series = (string) $series; |
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} |
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/** |
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* @codeCoverageIgnore |
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*/ |
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public function getSeries() |
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{ |
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return $this->series; |
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} |
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/** |
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* Produces a hash from series to obscure it for storage. |
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* |
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* @return string |
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*/ |
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public function getFingerprint() |
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{ |
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return hash('sha384', $this->series); |
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} |
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public function generateNewSeries() |
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{ |
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$this->series = bin2hex(random_bytes(self::SERIES_SIZE)); |
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} |
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/** |
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* Assignes a new identification key and resets a the hash. |
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* |
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* @param string $key |
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*/ |
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public function setKey($key) |
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{ |
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$this->hash = null; |
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if (empty($key)) { |
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$this->key = null; |
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return; |
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} |
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$this->key = (string) $key; |
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$this->hash = $this->makeHash($key); |
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} |
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/** |
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* @codeCoverageIgnore |
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* @return string |
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*/ |
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public function getKey() |
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{ |
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return $this->key; |
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} |
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/** |
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* Sets a new key and resets the hash. |
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*/ |
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public function generateNewKey() |
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{ |
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$key = bin2hex(random_bytes(self::KEY_SIZE)); |
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$this->key = $key; |
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$this->hash = $this->makeHash($key); |
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} |
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/** |
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* @codeCoverageIgnore |
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*/ |
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public function getHash() |
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{ |
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return $this->hash; |
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} |
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private function makeHash($key) |
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{ |
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return hash('sha384', $key); |
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} |
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/** |
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* @param string $hash |
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*/ |
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public function setHash($hash) |
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{ |
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if (empty($hash)) { |
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$this->hash = null; |
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return; |
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} |
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$this->hash = (string) $hash; |
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} |
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public function matchKey($key) |
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{ |
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return $this->makeHash($key) === $this->hash; |
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} |
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/** |
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* Retrieves the identification token in a compact form. |
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* |
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* @return string|null |
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*/ |
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public function getCollapsedValue() |
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{ |
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if (null === $this->getId()) { |
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return null; |
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} |
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return $this->getUserId() . '|' . $this->getSeries() . '|' . $this->getKey(); |
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} |
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/** |
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* Populates the instance from the identification token. |
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* |
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* @param string $value |
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*/ |
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public function setCollapsedValue($value) |
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{ |
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if (empty($value) || substr_count($value, '|') !== 2) { |
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throw new InvalidCookieToken; |
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} |
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list($userId, $series, $key) = explode('|', $value); |
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$this->setUserId($userId); |
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$this->setSeries($series); |
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$this->setKey($key); |
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} |
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} |
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teresko /
palladium
