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<?php |
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/** |
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* This file is part of graze/gigya-client |
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* |
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* Copyright (c) 2016 Nature Delivered Ltd. <https://www.graze.com> |
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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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* @license https://github.com/graze/gigya-client/blob/master/LICENSE.md |
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* @link https://github.com/graze/gigya-client |
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*/ |
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namespace Graze\Gigya\Auth\OAuth2; |
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use GuzzleHttp\Event\BeforeEvent; |
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use GuzzleHttp\Event\ErrorEvent; |
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use GuzzleHttp\Event\RequestEvents; |
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use GuzzleHttp\Event\SubscriberInterface; |
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class OAuth2Subscriber implements SubscriberInterface |
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{ |
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const AUTH_NAME = 'gigya-oauth2'; |
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/** @var GrantInterface */ |
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private $grant; |
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/** @var string|null */ |
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private $name; |
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/** |
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* @param GrantInterface $grant |
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* @param string|null $name |
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*/ |
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public function __construct(GrantInterface $grant, $name = null) |
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{ |
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$this->grant = $grant; |
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$this->name = $name ?: static::AUTH_NAME; |
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} |
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/** |
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* Returns an array of event names this subscriber wants to listen to. |
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* |
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* @return array |
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*/ |
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public function getEvents() |
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{ |
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return [ |
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'before' => ['sign', RequestEvents::SIGN_REQUEST], |
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'error' => ['error', RequestEvents::EARLY], |
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]; |
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} |
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/** |
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* Add the authentication params to the request. |
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* |
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* @param BeforeEvent $event |
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*/ |
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public function sign(BeforeEvent $event) |
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{ |
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$request = $event->getRequest(); |
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if ($request->getScheme() == 'https' |
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&& $request->getConfig()->get('auth') == $this->name |
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) { |
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$token = $this->grant->getToken(); |
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if (!is_null($token)) { |
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$request->addHeader('Authorization', sprintf('OAuth %s', $token->getToken())); |
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} |
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} |
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} |
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/** |
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* @param ErrorEvent $event |
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*/ |
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public function error(ErrorEvent $event) |
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{ |
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$response = $event->getResponse(); |
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if ($response && $response->getStatusCode() == 401) { |
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$request = $event->getRequest(); |
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if ($request->getScheme() == 'https' |
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&& $request->getConfig()->get('auth') == $this->name |
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&& !$request->getConfig()->get('retried') |
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) { |
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$token = $this->grant->getToken(); |
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if (!is_null($token)) { |
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$request->getConfig()->set('retried', true); |
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$event->intercept($event->getClient()->send($request)); |
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} |
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} |
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} |
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} |
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} |
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graze /
gigya-client
