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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 data object representing an ICAP request. |
| 25 | * |
| 26 | * An ICAP request is an ICAP envelope (method/URI/ICAP-headers) that |
| 27 | * optionally carries a single encapsulated HTTP request (REQMOD) or a |
| 28 | * single encapsulated HTTP response (RESPMOD), per RFC 3507 §4.4. |
| 29 | * |
| 30 | * Rendering into wire bytes is the {@see \Ndrstmr\Icap\RequestFormatter}'s |
| 31 | * job; this class is a pure value object. |
| 32 | */ |
| 33 | final readonly class IcapRequest |
| 34 | { |
| 35 | /** @var array<string, string[]> */ |
| 36 | public array $headers; |
| 37 | |
| 38 | /** |
| 39 | * @param string $method ICAP method (OPTIONS, REQMOD, RESPMOD) |
| 40 | * @param string $uri Fully-qualified ICAP URI, e.g. icap://host:1344/service |
| 41 | * @param array<string, string|string[]> $headers ICAP headers (Host is filled in from $uri when missing); |
| 42 | * scalar values are promoted to a one-element list |
| 43 | * @param HttpRequest|null $encapsulatedRequest Encapsulated HTTP request (REQMOD) |
| 44 | * @param HttpResponse|null $encapsulatedResponse Encapsulated HTTP response (RESPMOD) |
| 45 | * @param bool $previewIsComplete When true, the body attached to the encapsulated HTTP |
| 46 | * message represents the complete payload in a preview |
| 47 | * scenario, so the terminator must be `0; ieof\r\n\r\n` |
| 48 | * rather than `0\r\n\r\n` (RFC 3507 §4.5). |
| 49 | */ |
| 50 | public function __construct( |
| 51 | public string $method, |
| 52 | public string $uri = '/', |
| 53 | array $headers = [], |
| 54 | public ?HttpRequest $encapsulatedRequest = null, |
| 55 | public ?HttpResponse $encapsulatedResponse = null, |
| 56 | public bool $previewIsComplete = false, |
| 57 | ) { |
| 58 | $this->headers = array_map(fn ($v) => (array) $v, $headers); |
| 59 | } |
| 60 | |
| 61 | /** |
| 62 | * @param string|string[] $value |
| 63 | */ |
| 64 | public function withHeader(string $name, string|array $value): self |
| 65 | { |
| 66 | $headers = $this->headers; |
| 67 | $headers[$name] = (array) $value; |
| 68 | |
| 69 | return new self( |
| 70 | $this->method, |
| 71 | $this->uri, |
| 72 | $headers, |
| 73 | $this->encapsulatedRequest, |
| 74 | $this->encapsulatedResponse, |
| 75 | $this->previewIsComplete, |
| 76 | ); |
| 77 | } |
| 78 | } |