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| 1 | <?php |
| 2 | |
| 3 | /** |
| 4 | * SPDX-License-Identifier: EUPL-1.2 |
| 5 | * |
| 6 | * This file is part of icap-flow. |
| 7 | * |
| 8 | * Licensed under the EUPL, Version 1.2 only (the "Licence"); |
| 9 | * you may not use this work except in compliance with the Licence. |
| 10 | * You may obtain a copy of the Licence at: |
| 11 | * |
| 12 | * https://joinup.ec.europa.eu/collection/eupl/eupl-text-eupl-12 |
| 13 | * |
| 14 | * Unless required by applicable law or agreed to in writing, software |
| 15 | * distributed under the Licence is distributed on an "AS IS" basis, |
| 16 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 17 | */ |
| 18 | |
| 19 | declare(strict_types=1); |
| 20 | |
| 21 | namespace Ndrstmr\Icap\DTO; |
| 22 | |
| 23 | /** |
| 24 | * Immutable DTO representing an ICAP response. |
| 25 | * |
| 26 | * A response that was read in the discarding mode of the scan helpers |
| 27 | * ({@see \Ndrstmr\Icap\DiscardingIcapClient}) was received and checked to its last |
| 28 | * byte, but its body was not kept: `body` is then empty and `discardedBodyBytes` |
| 29 | * says how many bytes the body had (0 for none). Only that field tells such a |
| 30 | * response from one whose body is empty. |
| 31 | * |
| 32 | * `encapsulatedStatus` is the HTTP status of the encapsulated response (its `res-hdr` section), if the |
| 33 | * ICAP response has one: the 403 of a block page, the 200 of a message sent back. |
| 34 | */ |
| 35 | final readonly class IcapResponse |
| 36 | { |
| 37 | /** @var array<string, string[]> */ |
| 38 | public array $headers; |
| 39 | |
| 40 | /** |
| 41 | * @param int $statusCode HTTP status code, e.g. 200, 204, 500 |
| 42 | * @param array<string, string[]> $headers Response headers |
| 43 | * @param string $body Response body content |
| 44 | * @param int|null $discardedBodyBytes Length of the decoded body that was received and not kept; null if the body is in `$body` |
| 45 | * @param int|null $encapsulatedStatus HTTP status of the encapsulated response; null if the response has none |
| 46 | */ |
| 47 | public function __construct( |
| 48 | public int $statusCode, |
| 49 | array $headers = [], |
| 50 | public string $body = '', |
| 51 | public ?int $discardedBodyBytes = null, |
| 52 | public ?int $encapsulatedStatus = null, |
| 53 | ) { |
| 54 | $this->headers = array_map(fn ($v) => (array) $v, $headers); |
| 55 | } |
| 56 | |
| 57 | /** |
| 58 | * @param string|string[] $value |
| 59 | */ |
| 60 | public function withHeader(string $name, string|array $value): self |
| 61 | { |
| 62 | $headers = $this->headers; |
| 63 | $headers[$name] = (array) $value; |
| 64 | |
| 65 | return new self( |
| 66 | $this->statusCode, |
| 67 | $headers, |
| 68 | $this->body, |
| 69 | $this->discardedBodyBytes, |
| 70 | $this->encapsulatedStatus, |
| 71 | ); |
| 72 | } |
| 73 | } |