404-solution / includes / matching / OldPermalinkStructureResolver.php

OldPermalinkStructureResolver.php in 404 Solution trunk, at includes/matching/OldPermalinkStructureResolver.php

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1	<?php
2
3	if (!defined('ABSPATH')) {
4	exit;
5	}
6
7	/**
8	* Resolves a 404 request against previously used WordPress permalink
9	* structures without building a full old-URL map.
10	*
11	* Orchestrates three collaborators: ABJ_404_Solution_OldPermalinkCandidateStructureProvider
12	* (which structures to try), ABJ_404_Solution_PermalinkStructureCompiler
13	* (structure -> regex), and ABJ_404_Solution_OldPermalinkPostResolver (regex
14	* match -> validated post).
15	*/
16	class ABJ_404_Solution_OldPermalinkStructureResolver {
17
18	/** @var ABJ_404_Solution_PermalinkStructureCompiler */
19	private $compiler;
20
21	/** @var ABJ_404_Solution_OldPermalinkCandidateStructureProvider */
22	private $candidateProvider;
23
24	/** @var ABJ_404_Solution_OldPermalinkPostResolver */
25	private $postResolver;
26
27	/** @var ABJ_404_Solution_Logging */
28	private $logger;
29
30	/**
31	* @param ABJ_404_Solution_OldPermalinkStructureStore $structureStore
32	* @param ABJ_404_Solution_ContentRepositoryInterface $contentRepository
33	* @param ABJ_404_Solution_Logging $logger
34	*/
35	public function __construct(
36	ABJ_404_Solution_OldPermalinkStructureStore $structureStore,
37	ABJ_404_Solution_ContentRepositoryInterface $contentRepository,
38	ABJ_404_Solution_Logging $logger
39	) {
40	$this->compiler = new ABJ_404_Solution_PermalinkStructureCompiler();
41	$this->candidateProvider = new ABJ_404_Solution_OldPermalinkCandidateStructureProvider($structureStore, $this->compiler);
42	$this->postResolver = new ABJ_404_Solution_OldPermalinkPostResolver($contentRepository, $logger);
43	$this->logger = $logger;
44	}
45
46	/**
47	* @param ABJ_404_Solution_MatchRequest $request
48	* @return array{id: string, type: string, link: string, title: string, score: float}\|null
49	*/
50	public function resolve(ABJ_404_Solution_MatchRequest $request): ?array {
51	$path = $this->normalizeRequestPath($request->getRequestedURL());
52	if ($path === '') {
53	return null;
54	}
55
56	foreach ($this->candidateProvider->candidatesFor($path) as $candidate) {
57	$compiled = $this->compiler->compile($candidate['structure']);
58	if ($compiled === null) {
59	$this->logger->debugMessage('Old permalink structure skipped: ' . $candidate['structure']);
60	continue;
61	}
62
63	$matches = array();
64	$matched = @preg_match($compiled['regex'], $path, $matches);
65	if ($matched !== 1) {
66	continue;
67	}
68
69	$postId = $this->postResolver->resolve($matches, $candidate, $request->getOptions());
70	if ($postId === null) {
71	continue;
72	}
73
74	$link = function_exists('get_permalink') ? get_permalink($postId) : '';
75	if (!is_string($link) \|\| $link === '') {
76	return null;
77	}
78
79	if ($this->normalizeRequestPath($link) === $path) {
80	$this->logger->debugMessage('Old permalink structure matched canonical URL; skipping self redirect.');
81	return null;
82	}
83
84	return array(
85	'id' => (string)$postId,
86	'type' => (string)ABJ404_TYPE_POST,
87	'link' => $link,
88	'title' => function_exists('get_the_title') ? (string)get_the_title($postId) : '',
89	'score' => 100.0,
90	);
91	}
92
93	return null;
94	}
95
96	/**
97	* @param string $requestedURL
98	* @return string
99	*/
100	private function normalizeRequestPath(string $requestedURL): string {
101	$path = parse_url($requestedURL, PHP_URL_PATH);
102	if (!is_string($path)) {
103	$path = $requestedURL;
104	}
105	$path = trim($path);
106	if ($path === '') {
107	return '';
108	}
109	if ($path[0] !== '/') {
110	$path = '/' . $path;
111	}
112	$path = '/' . trim($path, '/');
113	return $path === '/' ? '/' : $path . '/';
114	}
115	}
116