golden hour

/home/godaofbq/elite-hyperbarics.com/wp-content/plugins/woocommerce/src/StoreApi/Utilities

File/Folder	Size	Actions
ArrayUtils.php	1.49 KB
CartController.php	44.63 KB
CheckoutTrait.php	7.42 KB
DraftOrderTrait.php	1.76 KB
JsonWebToken.php	5.03 KB
LocalPickupUtils.php	2.37 KB
NoticeHandler.php	2.11 KB
OrderAuthorizationTrait.php	2.28 KB
OrderController.php	27.1 KB
Pagination.php	2.05 KB
ProductItemTrait.php	2.95 KB
ProductQuery.php	18.49 KB
ProductQueryFilters.php	7.94 KB
QuantityLimits.php	6.81 KB
RateLimits.php	5.96 KB
SanitizationUtils.php	794 B
ValidationUtils.php	1.73 KB

Edit: JsonWebToken.php

<?php

namespace Automattic\WooCommerce\StoreApi\Utilities;

/**
 * JsonWebToken class.
 *
 * Simple Json Web Token generator & verifier static utility class, currently supporting only HS256 signatures.
 */
final class JsonWebToken {

/**
	 * JWT header type.
	 *
	 * @var string
	 */
	private static $type = 'JWT';

/**
	 * JWT algorithm to generate signature.
	 *
	 * @var string
	 */
	private static $algorithm = 'HS256';

/**
	 * Generates a token from provided data and secret.
	 *
	 * @param array  $payload Payload data.
	 * @param string $secret The secret used to generate the signature.
	 *
	 * @return string
	 */
	public static function create( array $payload, string $secret ) {
		$header    = self::to_base_64_url( self::generate_header() );
		$payload   = self::to_base_64_url( self::generate_payload( $payload ) );
		$signature = self::to_base_64_url( self::generate_signature( $header . '.' . $payload, $secret ) );

return $header . '.' . $payload . '.' . $signature;
	}

/**
	 * Validates a provided token against the provided secret.
	 * Checks for format, valid header for our class, expiration claim validity and signature.
	 * https://datatracker.ietf.org/doc/html/rfc7519#section-7.2
	 *
	 * @param string $token Full token string.
	 * @param string $secret The secret used to generate the signature.
	 *
	 * @return bool
	 */
	public static function validate( string $token, string $secret ) {
		/**
		 * Confirm the structure of a JSON Web Token, it has three parts separated
		 * by dots and complies with Base64URL standards.
		 */
		if ( preg_match( '/^[a-zA-Z\d\-_=]+\.[a-zA-Z\d\-_=]+\.[a-zA-Z\d\-_=]+$/', $token ) !== 1 ) {
			return false;
		}

$parts = self::get_parts( $token );

/**
		 * Check if header declares a supported JWT by this class.
		 */
		if (
			! is_object( $parts->header ) ||
			! property_exists( $parts->header, 'typ' ) ||
			! property_exists( $parts->header, 'alg' ) ||
			self::$type !== $parts->header->typ ||
			self::$algorithm !== $parts->header->alg
		) {
			return false;
		}

/**
		 * Check if token is expired.
		 */
		if ( ! property_exists( $parts->payload, 'exp' ) || time() > (int) $parts->payload->exp ) {
			return false;
		}

/**
		 * Check if the token is based on our secret.
		 */
		$encoded_regenerated_signature = self::to_base_64_url(
			self::generate_signature( $parts->header_encoded . '.' . $parts->payload_encoded, $secret )
		);

return hash_equals( $encoded_regenerated_signature, $parts->signature_encoded );
	}

/**
	 * Returns the decoded/encoded header, payload and signature from a token string.
	 *
	 * @param string $token Full token string.
	 *
	 * @return object
	 */
	public static function get_parts( string $token ) {
		$parts = explode( '.', $token );

return (object) array(
			'header'            => json_decode( self::from_base_64_url( $parts[0] ) ),
			'header_encoded'    => $parts[0],
			'payload'           => json_decode( self::from_base_64_url( $parts[1] ) ),
			'payload_encoded'   => $parts[1],
			'signature'         => self::from_base_64_url( $parts[2] ),
			'signature_encoded' => $parts[2],

);
	}

/**
	 * Generates the json formatted header for our HS256 JWT token.
	 *
	 * @return string|bool
	 */
	private static function generate_header() {
		return wp_json_encode(
			array(
				'alg' => self::$algorithm,
				'typ' => self::$type,
			)
		);
	}

/**
	 * Generates a sha256 signature for the provided string using the provided secret.
	 *
	 * @param string $string Header + Payload token substring.
	 * @param string $secret The secret used to generate the signature.
	 *
	 * @return false|string
	 */
	private static function generate_signature( string $string, string $secret ) {
		return hash_hmac(
			'sha256',
			$string,
			$secret,
			true
		);
	}

/**
	 * Generates the payload in json formatted string.
	 *
	 * @param array $payload Payload data.
	 *
	 * @return string|bool
	 */
	private static function generate_payload( array $payload ) {
		return wp_json_encode( array_merge( $payload, [ 'iat' => time() ] ) );
	}

/**
	 * Encodes a string to url safe base64.
	 *
	 * @param string $string The string to be encoded.
	 *
	 * @return string
	 */
	private static function to_base_64_url( string $string ) {
		return str_replace(
			array( '+', '/', '=' ),
			array( '-', '_', '' ),
			base64_encode( $string ) // phpcs:ignore WordPress.PHP.DiscouragedPHPFunctions.obfuscation_base64_encode
		);
	}

/**
	 * Decodes a string encoded using url safe base64, supporting auto padding.
	 *
	 * @param string $string the string to be decoded.
	 *
	 * @return string
	 */
	private static function from_base_64_url( string $string ) {
		/**
		 * Add padding to base64 strings which require it. Some base64 URL strings
		 * which are decoded will have missing padding which is represented by the
		 * equals sign.
		 */
		if ( strlen( $string ) % 4 !== 0 ) {
			return self::from_base_64_url( $string . '=' );
		}

return base64_decode( // phpcs:ignore WordPress.PHP.DiscouragedPHPFunctions.obfuscation_base64_decode
			str_replace(
				array( '-', '_' ),
				array( '+', '/' ),
				$string
			)
		);
	}
}