<?php
/**
* The PayPal bearer.
*
* @package WooCommerce\PayPalCommerce\ApiClient\Authentication
*/
declare(strict_types=1);
namespace WooCommerce\PayPalCommerce\ApiClient\Authentication;
use WooCommerce\PayPalCommerce\ApiClient\Endpoint\RequestTrait;
use WooCommerce\PayPalCommerce\ApiClient\Entity\Token;
use WooCommerce\PayPalCommerce\ApiClient\Exception\RuntimeException;
use WooCommerce\PayPalCommerce\ApiClient\Helper\Cache;
use Psr\Log\LoggerInterface;
use WooCommerce\PayPalCommerce\Vendor\Psr\Container\ContainerInterface;
/**
* Class PayPalBearer
*/
class PayPalBearer implements Bearer {
use RequestTrait;
const CACHE_KEY = 'ppcp-bearer';
/**
* The settings.
*
* @var ContainerInterface
*/
protected $settings;
/**
* The cache.
*
* @var Cache
*/
private $cache;
/**
* The host.
*
* @var string
*/
private $host;
/**
* The client key.
*
* @var string
*/
private $key;
/**
* The client secret.
*
* @var string
*/
private $secret;
/**
* The logger.
*
* @var LoggerInterface
*/
private $logger;
/**
* PayPalBearer constructor.
*
* @param Cache $cache The cache.
* @param string $host The host.
* @param string $key The key.
* @param string $secret The secret.
* @param LoggerInterface $logger The logger.
* @param ContainerInterface $settings The settings.
*/
public function __construct(
Cache $cache,
string $host,
string $key,
string $secret,
LoggerInterface $logger,
ContainerInterface $settings
) {
$this->cache = $cache;
$this->host = $host;
$this->key = $key;
$this->secret = $secret;
$this->logger = $logger;
$this->settings = $settings;
}
/**
* Returns a bearer token.
*
* @return Token
* @throws RuntimeException When request fails.
*/
public function bearer(): Token {
try {
$bearer = Token::from_json( (string) $this->cache->get( self::CACHE_KEY ) );
return ( $bearer->is_valid() ) ? $bearer : $this->newBearer();
} catch ( RuntimeException $error ) {
return $this->newBearer();
}
}
/**
* Creates a new bearer token.
*
* @return Token
* @throws RuntimeException When request fails.
*/
private function newBearer(): Token {
$key = $this->settings->has( 'client_id' ) && $this->settings->get( 'client_id' ) ? $this->settings->get( 'client_id' ) : $this->key;
$secret = $this->settings->has( 'client_secret' ) && $this->settings->get( 'client_secret' ) ? $this->settings->get( 'client_secret' ) : $this->secret;
$url = trailingslashit( $this->host ) . 'v1/oauth2/token?grant_type=client_credentials';
$args = array(
'method' => 'POST',
'headers' => array(
// phpcs:ignore WordPress.PHP.DiscouragedPHPFunctions.obfuscation_base64_encode
'Authorization' => 'Basic ' . base64_encode( $key . ':' . $secret ),
),
);
$response = $this->request(
$url,
$args
);
if ( is_wp_error( $response ) || wp_remote_retrieve_response_code( $response ) !== 200 ) {
$error = new RuntimeException(
__( 'Could not create token.', 'woocommerce-paypal-payments' )
);
$this->logger->warning(
$error->getMessage(),
array(
'args' => $args,
'response' => $response,
)
);
throw $error;
}
$token = Token::from_json( $response['body'] );
$this->cache->set( self::CACHE_KEY, $token->as_json() );
return $token;
}
}