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<?php |
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namespace Sesshin\Id; |
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use Sesshin\EntropyGenerator\EntropyGeneratorInterface; |
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use Sesshin\EntropyGenerator\Uniq; |
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use Sesshin\Exception; |
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use Sesshin\Id\Store\StoreInterface; |
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use Sesshin\Id\Store\Cookie as CookieStore; |
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/** |
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* Session id handler (store, entropy generator, hash algo...). |
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*/ |
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class Handler |
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{ |
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/** @var StoreInterface */ |
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private $idStore; |
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/** @var EntropyGeneratorInterface */ |
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private $entropyGenerator; |
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/** @var string Hash algo used to generate session ID (it hashes entropy). */ |
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private $hashAlgo = 'sha1'; |
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/** |
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* @param StoreInterface $idStore |
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*/ |
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public function setIdStore(StoreInterface $idStore) |
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{ |
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$this->idStore = $idStore; |
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} |
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/** |
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* @return StoreInterface |
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*/ |
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public function getIdStore() |
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{ |
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if (!$this->idStore) { |
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$this->idStore = new CookieStore(); |
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} |
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return $this->idStore; |
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} |
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/** |
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* Sets entropy that is used to generate session id. |
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* |
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* @param EntropyGeneratorInterface $entropyGenerator |
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*/ |
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public function setEntropyGenerator(EntropyGeneratorInterface $entropyGenerator) |
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{ |
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$this->entropyGenerator = $entropyGenerator; |
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} |
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/** |
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* @return EntropyGeneratorInterface |
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*/ |
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public function getEntropyGenerator() |
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{ |
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if (!$this->entropyGenerator) { |
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$this->entropyGenerator = new Uniq(); |
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} |
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return $this->entropyGenerator; |
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} |
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/** |
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* @param string $algo Hash algorith accepted by hash extension. |
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* @throws Exception |
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*/ |
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public function setHashAlgo($algo) |
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{ |
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if (in_array($algo, hash_algos())) { |
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$this->hashAlgo = $algo; |
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} else { |
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throw new Exception('Provided algo is not valid (not on hash_algos() list)'); |
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} |
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} |
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/** |
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* @return string |
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*/ |
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public function getHashAlgo() |
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{ |
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return $this->hashAlgo; |
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} |
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/** |
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* @return string |
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*/ |
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public function generateId() |
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{ |
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$id = hash($this->getHashAlgo(), $this->getEntropyGenerator()->generate()); |
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$this->setId($id); |
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return $this->getId(); |
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} |
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/** |
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* @param string $id |
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*/ |
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public function setId($id) |
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{ |
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$this->getIdStore()->setId($id); |
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} |
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/** |
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* @return string |
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*/ |
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public function getId() |
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{ |
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return $this->getIdStore()->getId(); |
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} |
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/** |
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* @return bool |
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*/ |
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public function issetId() |
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{ |
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return $this->getIdStore()->issetId(); |
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} |
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/** |
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* @return void |
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*/ |
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public function unsetId() |
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{ |
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$this->getIdStore()->unsetId(); |
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} |
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} |
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sobstel /
sesshin
