<?php
declare(strict_types=1);
/*
* The MIT License (MIT)
*
* Copyright (c) 2014-2021 Spomky-Labs
*
* This software may be modified and distributed under the terms
* of the MIT license. See the LICENSE file for details.
*/
namespace Webauthn;
use Assert\Assertion;
use Base64Url\Base64Url;
use function count;
use JsonSerializable;
use function Safe\json_decode;
class PublicKeyCredentialDescriptor implements JsonSerializable
{
public const CREDENTIAL_TYPE_PUBLIC_KEY = 'public-key';
public const AUTHENTICATOR_TRANSPORT_USB = 'usb';
public const AUTHENTICATOR_TRANSPORT_NFC = 'nfc';
public const AUTHENTICATOR_TRANSPORT_BLE = 'ble';
public const AUTHENTICATOR_TRANSPORT_INTERNAL = 'internal';
/**
* @var string
*/
protected $type;
/**
* @var string
*/
protected $id;
/**
* @var string[]
*/
protected $transports;
/**
* @param string[] $transports
*/
public function __construct(string $type, string $id, array $transports = [])
{
$this->type = $type;
$this->id = $id;
$this->transports = $transports;
}
public function getType(): string
{
return $this->type;
}
public function getId(): string
{
return $this->id;
}
/**
* @return string[]
*/
public function getTransports(): array
{
return $this->transports;
}
public static function createFromString(string $data): self
{
$data = json_decode($data, true);
Assertion::isArray($data, 'Invalid data');
return self::createFromArray($data);
}
/**
* @param mixed[] $json
*/
public static function createFromArray(array $json): self
{
Assertion::keyExists($json, 'type', 'Invalid input. "type" is missing.');
Assertion::keyExists($json, 'id', 'Invalid input. "id" is missing.');
return new self(
$json['type'],
Base64Url::decode($json['id']),
$json['transports'] ?? []
);
}
/**
* @return mixed[]
*/
public function jsonSerialize(): array
{
$json = [
'type' => $this->type,
'id' => Base64Url::encode($this->id),
];
if (0 !== count($this->transports)) {
$json['transports'] = $this->transports;
}
return $json;
}
}