Sop\JWX\JWT\Header\JOSE

Complexity

Total Complexity

8

Size/Duplication

Total Lines	43
Duplicated Lines	0 %

Test Coverage

Coverage

100%

Importance

Changes

0

4 Methods

Rating	Name	Duplication	Size	Complexity
A	__construct()	0	12	4
A	withHeader()	0	3	1
A	isJWS()	0	3	2
A	isJWE()	0	3	1

<?php

declare(strict_types = 1);

namespace Sop\JWX\JWT\Header;

/**
 * Represents as JOSE header.
 *
 * JOSE header consists of one or more Header objects, that are merged together.
 *
 * @see https://tools.ietf.org/html/rfc7519#section-5
 * @see https://tools.ietf.org/html/rfc7515#section-4
 * @see https://tools.ietf.org/html/rfc7516#section-4
 */
class JOSE extends Header
{
    /**
     * Constructor.
     *
     * @param Header ...$headers One or more headers to merge
     */
    public function __construct(Header ...$headers)
    {
        $params = [];
        foreach ($headers as $header) {
            foreach ($header->parameters() as $param) {
                if (isset($params[$param->name()])) {
                    throw new \UnexpectedValueException('Duplicate parameter.');
                }
                $params[$param->name()] = $param;
            }
        }
        parent::__construct(...array_values($params));
    }

    /**
     * Get self merged with another Header.
     */
    public function withHeader(Header $header): self
    {
        return new self($this, $header);
    }

    /**
     * Whether JOSE is for a JWS.
     */
    public function isJWS(): bool
    {
        return $this->hasAlgorithm() && !$this->hasEncryptionAlgorithm();
    }

    /**
     * Whether JOSE is for a JWE.
     */
    public function isJWE(): bool
    {
        return $this->hasEncryptionAlgorithm();
    }
}