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<?php |
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namespace WWON\JwtGuard; |
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use Firebase\JWT\ExpiredException; |
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use Firebase\JWT\JWT; |
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use Illuminate\Support\Facades\Config; |
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use WWON\JwtGuard\Contract\ClaimManager as ClaimManagerContract; |
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use WWON\JwtGuard\Exceptions\InaccessibleException; |
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use WWON\JwtGuard\Exceptions\InvalidTokenException; |
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use WWON\JwtGuard\Exceptions\MalformedException; |
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use WWON\JwtGuard\Exceptions\TokenExpiredException; |
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use WWON\JwtGuard\Exceptions\UnRefreshableException; |
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class JwtService |
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{ |
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/** |
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* @var string |
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*/ |
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private $key; |
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/** |
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* @var ClaimManagerContract |
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*/ |
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protected $claimManager; |
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/** |
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* JwtService constructor |
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* |
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* @param ClaimManagerContract $claimManager |
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*/ |
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public function __construct(ClaimManagerContract $claimManager) |
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{ |
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$this->key = Config::get('jwt.secret'); |
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$this->claimManager = $claimManager; |
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JWT::$leeway = Config::get('jwt.leeway'); |
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} |
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/** |
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* getTokenForUser method |
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* |
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* @param Claim $claim |
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* @return string |
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*/ |
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public function getTokenForClaim(Claim $claim) |
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{ |
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$token = JWT::encode($claim->toArray(), $this->key, Config::get('jwt.algo')); |
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$this->claimManager->add($claim); |
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return $token; |
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} |
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/** |
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* getEntityFromToken method |
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* |
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* @param string $token |
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* @return Claim |
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* @throws InaccessibleException |
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* @throws MalformedException |
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* @throws TokenExpiredException |
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* @throws InvalidTokenException |
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*/ |
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public function getClaimFromToken($token) |
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{ |
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$claim = $this->getValidClaimFromToken($token); |
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$claim->validateAccessible(); |
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return $claim; |
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} |
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/** |
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* refreshToken method |
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* |
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* @param string $token |
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* @return string |
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* @throws MalformedException |
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* @throws TokenExpiredException |
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* @throws InvalidTokenException |
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* @throws UnRefreshableException |
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*/ |
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public function refreshToken($token) |
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{ |
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$claim = $this->getValidClaimFromToken($token); |
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if (empty($claim->refresh)) { |
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throw new UnRefreshableException; |
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} |
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$this->claimManager->remove($claim); |
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$newClaim = new Claim([ |
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'sub' => $claim->sub, |
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'aud' => $claim->aud, |
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'refresh' => $claim->refresh |
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]); |
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return $this->getTokenForClaim($newClaim); |
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} |
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/** |
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* invalidateToken method |
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* |
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* @param string $token |
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* @throws MalformedException |
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* @throws TokenExpiredException |
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* @throws UnRefreshableException |
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*/ |
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public function invalidateToken($token) |
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{ |
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$claim = $this->getClaimFromToken($token); |
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$this->claimManager->remove($claim); |
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} |
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/** |
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* wipeUserTokens method |
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* |
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* @param Claim $claim |
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*/ |
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public function wipeUserTokens(Claim $claim) |
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{ |
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$this->claimManager->removeAll($claim); |
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} |
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/** |
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* getValidClaimFromToken method |
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* |
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* @param $token |
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* @return Claim |
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* @throws MalformedException |
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* @throws TokenExpiredException |
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* @throws InvalidTokenException |
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*/ |
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protected function getValidClaimFromToken($token) |
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{ |
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try { |
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$payload = JWT::decode($token, $this->key, [ |
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'HS256', 'HS384', 'HS512', 'RS256' |
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]); |
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} catch (ExpiredException $e) { |
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throw new TokenExpiredException($e->getMessage(), $e->getCode(), $e); |
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} catch (\Exception $e) { |
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throw new InvalidTokenException; |
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} |
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$claim = new Claim((array) $payload); |
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if (!$this->claimManager->check($claim)) { |
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throw new InvalidTokenException; |
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} |
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return $claim; |
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} |
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} |