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<?php |
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/** |
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* @filename TokenDispatcher.php |
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* @touch 09/11/2016 11:29 |
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* @author wudege <[email protected]> |
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* @version 1.0.0 |
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*/ |
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namespace TokenAssistant; |
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use Predis\Client; |
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class TokenDispatcher implements TokenDispatcherInterface |
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{ |
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const TOKEN_HASH_NAMESPACE = 'token:'; |
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const USER_ID_HASH_NAMESPACE = 'user-id:'; |
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/** |
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* @var Client |
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*/ |
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private $redisClient; |
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/** |
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* TokenDispatcher constructor. |
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* |
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* @param Client $client |
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*/ |
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public function __construct(Client $client) |
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{ |
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$this->redisClient = $client; |
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} |
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/** |
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* Assign a new token or gain existed token. |
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* @author wudege <[email protected]> |
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* |
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* @param string $userId |
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* @param bool $forceRefresh |
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* |
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* @return string |
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*/ |
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public function assign($userId, $forceRefresh = true) |
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{ |
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$token = $this->getTokenByUserId($userId); |
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if ($token && $forceRefresh) { |
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$this->redisClient->hdel(static::TOKEN_HASH_NAMESPACE, $token); |
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} |
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$token = $token ? $token : Util::genToken(); |
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$this->redisClient->hset(static::TOKEN_HASH_NAMESPACE, $token, $userId); |
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$this->redisClient->hset(static::USER_ID_HASH_NAMESPACE, $userId, $token); |
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return $token; |
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} |
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/** |
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* Recycle token if exist. |
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* @author wudege <[email protected]> |
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* |
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* @param string $userId |
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* |
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* @return bool |
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*/ |
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public function recycle($userId) |
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{ |
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$token = $this->getTokenByUserId($userId); |
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if ($token) { |
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$this->redisClient->hdel(static::TOKEN_HASH_NAMESPACE, $token); |
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} |
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$this->redisClient->hdel(static::USER_ID_HASH_NAMESPACE, $userId); |
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return true; |
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} |
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/** |
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* Recycle the old token if exist, then assign new token. |
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* @author wudege <[email protected]> |
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* |
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* @param $userId |
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* |
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* @return string |
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*/ |
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public function reassign($userId) |
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{ |
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$this->recycle($userId); |
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return $this->assign($userId); |
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} |
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/** |
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* Get user id from token. |
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* @author wudege <[email protected]> |
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* |
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* @param string $token |
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* |
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* @return string |
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*/ |
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public function getUserIdByToken($token) |
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{ |
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return $this->redisClient->hget(static::TOKEN_HASH_NAMESPACE, $token); |
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} |
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/** |
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* |
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* @author wudege <[email protected]> |
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* |
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* @param string $userId |
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* |
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* @return string |
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*/ |
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public function getTokenByUserId($userId) |
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{ |
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return $this->redisClient->hget(static::USER_ID_HASH_NAMESPACE, $userId); |
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} |
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} |
wudege /
token-assistant
