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<?php |
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namespace AdvancedLearning\Oauth2Server\GraphQL; |
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use AdvancedLearning\Oauth2Server\Exceptions\AuthenticationException; |
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use AdvancedLearning\Oauth2Server\Models\Client; |
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use function is_null; |
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use SilverStripe\Control\HTTPRequest; |
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use SilverStripe\Core\Injector\Injector; |
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use SilverStripe\GraphQL\Auth\AuthenticatorInterface; |
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use SilverStripe\ORM\ValidationException; |
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use SilverStripe\Security\Member; |
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use function substr; |
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class Authenticator implements AuthenticatorInterface |
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{ |
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public function authenticate(HTTPRequest $request) |
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{ |
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$authenticator = Injector::inst()->get(\AdvancedLearning\Oauth2Server\Services\Authenticator::class); |
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try { |
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$request = $authenticator->authenticate($request); |
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if ($userId = $request->getHeader('oauth_user_id')) { |
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return Member::get()->filter(['Email' => $userId])->first(); |
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// return a fake member for the client |
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} else if ($clientId = $request->getHeader('oauth_client_id')) { |
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$member = new Member(); |
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$client = Client::get()->byID($clientId); |
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$member->FirstName = $client->Name; |
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return $member; |
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} |
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throw new ValidationException('Could not find a valid client/user'); |
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} catch (AuthenticationException $exception) { |
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throw new ValidationException($exception->getMessage()); |
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} |
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} |
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public function isApplicable(HTTPRequest $request) |
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{ |
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return !is_null($this->getToken($request)); |
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} |
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/** |
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* Extract the token from the authorization header. |
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* |
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* @param HTTPRequest $request The request container the token. |
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* |
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* @return null|string |
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*/ |
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protected function getToken(HTTPRequest $request): ?string |
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{ |
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if ($authHeader = $request->getHeader('Authorization')) { |
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if (stripos($authHeader, 'Bearer ') === 0) { |
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return substr($authHeader, 6); |
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} |
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} |
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return null; |
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} |
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} |
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