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<?php |
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/** |
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* This file is part of the adlogix/guzzle-atlassian-connect-middleware package. |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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namespace Adlogix\GuzzleAtlassianConnect\Entity; |
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use Adlogix\GuzzleAtlassianConnect\Helpers\Qsh; |
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use Firebase\JWT\JWT; |
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/** |
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* Class JwtToken |
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* |
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* The JWT standard can be found there |
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* @see https://jwt.io/ |
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* |
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* JWT made by atlassian sits there |
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* @see https://developer.atlassian.com/static/connect/docs/latest/concepts/understanding-jwt.html |
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* |
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* You can test your JWT token validity against Atlassian there |
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* @see http://jwt-decoder.herokuapp.com/jwt/decode |
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* |
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* @package Adlogix\GuzzleAtlassianConnect\Entity |
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* @author Cedric Michaux <[email protected]> |
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*/ |
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class JwtToken |
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{ |
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/** |
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* @var string |
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*/ |
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private $audience; |
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/** |
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* @var object |
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*/ |
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private $context; |
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/** |
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* @var int |
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*/ |
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private $validityDuration; |
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/** |
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* @var int |
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*/ |
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private $issuedAtTime; |
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/** |
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* @var string |
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*/ |
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private $issuer; |
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/** |
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* @var string |
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*/ |
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private $queryStringHash; |
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/** |
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* @var string |
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*/ |
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private $secret; |
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/** |
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* @var string |
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*/ |
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private $subject; |
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/** |
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* JwtToken constructor. |
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* |
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* @param string $issuer |
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* @param string $secret |
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* @param null $issuedAtTime |
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* @param int $validityDuration = 3600 |
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*/ |
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public function __construct($issuer, $secret, $issuedAtTime = null, $validityDuration = 3600) |
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{ |
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$this->issuer = $issuer; |
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$this->secret = $secret; |
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$this->issuedAtTime = ($issuedAtTime) ?: time(); |
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$this->validityDuration = $validityDuration; |
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} |
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/** |
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* @return string |
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*/ |
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public function __toString() |
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{ |
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return $this->sign(); |
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} |
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/** |
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* @return string |
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*/ |
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public function sign() |
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{ |
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$payload = $this->buildPayload(); |
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return JWT::encode($payload, $this->secret); |
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} |
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/** |
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* @return array |
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*/ |
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public function buildPayload() |
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{ |
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if (null == $this->queryStringHash) { |
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throw new \LogicException('You should provide a Query String before calling sign'); |
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} |
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$payload = [ |
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'iss' => $this->issuer, |
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'iat' => $this->issuedAtTime, |
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'exp' => $this->issuedAtTime + $this->validityDuration, |
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'qsh' => $this->queryStringHash |
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]; |
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$payload = $this->setPayloadContext($payload); |
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$payload = $this->setPayloadSubject($payload); |
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return $this->setPayloadAudience($payload); |
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} |
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/** |
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* @param $payload |
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* |
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* @return array |
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*/ |
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private function setPayloadContext(array $payload) |
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{ |
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if (null !== $this->context) { |
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$payload['context'] = $this->context; |
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} |
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return $payload; |
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} |
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/** |
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* @param $payload |
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* |
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* @return array |
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*/ |
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private function setPayloadSubject(array $payload) |
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{ |
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if (null !== $this->subject) { |
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$payload['sub'] = $this->subject; |
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} |
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return $payload; |
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} |
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/** |
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* @param $payload |
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* |
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* @return array |
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*/ |
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private function setPayloadAudience(array $payload) |
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{ |
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if (null !== $this->audience) { |
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$payload['aud'] = $this->audience; |
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} |
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return $payload; |
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} |
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/** |
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* @param int $validityDuration |
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* |
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* @return JwtToken |
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*/ |
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public function setValidityDuration($validityDuration) |
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{ |
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$this->validityDuration = $validityDuration; |
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return $this; |
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} |
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/** |
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* @param int $issuedAtTime |
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* |
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* @return JwtToken |
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*/ |
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public function setIssuedAtTime($issuedAtTime) |
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{ |
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$this->issuedAtTime = $issuedAtTime; |
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return $this; |
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} |
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/** |
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* @param string $method |
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* @param string $url |
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* |
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* @return $this |
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*/ |
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public function setQueryString($method, $url) |
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{ |
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$this->queryStringHash = Qsh::create($method, $url); |
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return $this; |
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} |
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/** |
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* @param string $audience |
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* |
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* @return JwtToken |
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*/ |
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public function setAudience($audience) |
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{ |
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$this->audience = $audience; |
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return $this; |
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} |
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/** |
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* @param object $context |
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* |
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* @return JwtToken |
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*/ |
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public function setContext($context) |
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{ |
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$this->context = $context; |
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return $this; |
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} |
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/** |
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* @param string $subject |
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* |
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* @return JwtToken |
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*/ |
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public function setSubject($subject) |
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{ |
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$this->subject = $subject; |
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return $this; |
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} |
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} |
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