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<?php |
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declare(strict_types=1); |
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/* |
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* The MIT License (MIT) |
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* |
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* Copyright (c) 2014-2018 Spomky-Labs |
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* |
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* This software may be modified and distributed under the terms |
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* of the MIT license. See the LICENSE file for details. |
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*/ |
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namespace U2FAuthentication\Fido2; |
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use Base64Url\Base64Url; |
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use CBOR\Decoder; |
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use U2FAuthentication\Fido2\AttestationStatement\AttestationObjectLoader; |
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class PublicKeyCredentialLoader |
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{ |
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/** |
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* @var Decoder |
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*/ |
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private $decoder; |
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/** |
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* @var AttestationObjectLoader |
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*/ |
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private $attestationObjectLoader; |
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public function __construct(Decoder $decoder, AttestationObjectLoader $attestationObjectLoader) |
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{ |
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$this->decoder = $decoder; |
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$this->attestationObjectLoader = $attestationObjectLoader; |
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} |
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public function load(string $data): PublicKeyCredential |
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{ |
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$json = json_decode($data, true); |
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if (!array_key_exists('id', $json)) { |
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throw new \InvalidArgumentException(); |
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} |
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$id = Base64Url::decode($json['id']); |
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if (!array_key_exists('rawId', $json)) { |
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throw new \InvalidArgumentException(); |
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} |
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$rawId = Base64Url::decode($json['rawId']); |
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if (!array_key_exists('type', $json)) { |
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throw new \InvalidArgumentException(); |
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} |
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if (!hash_equals($id, $rawId)) { |
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throw new \InvalidArgumentException(); |
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} |
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if (!array_key_exists('response', $json)) { |
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throw new \InvalidArgumentException(); |
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} |
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$publicKeyCredential = new PublicKeyCredential( |
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$json['id'], |
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$json['type'], |
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$rawId, |
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$this->createAuthenticatorResponse($json['response']) |
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); |
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return $publicKeyCredential; |
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} |
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private function createAuthenticatorResponse(array $response): AuthenticatorAttestationResponse |
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{ |
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if (!array_key_exists('clientDataJSON', $response)) { |
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throw new \InvalidArgumentException(); |
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} |
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if (!array_key_exists('attestationObject', $response)) { |
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throw new \InvalidArgumentException(); |
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} |
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$attestationObject = $this->attestationObjectLoader->load($response['attestationObject']); |
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return new AuthenticatorAttestationResponse( |
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CollectedClientData::createFormJson($response['clientDataJSON']), |
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$attestationObject |
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); |
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} |
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} |
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Spomky-Labs /
u2f-php
