docket-cache / includes / src / MoCache.php

MoCache.php in Docket Cache – Object Cache Accelerator trunk, at includes/src/MoCache.php

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1	<?php
2	/**
3	* Docket Cache.
4	*
5	* @author Nawawi Jamili
6	* @license MIT
7	*
8	* @see https://github.com/nawawi/docket-cache
9	*/
10
11	namespace Nawawi\DocketCache;
12
13	\defined('ABSPATH') \|\| exit;
14
15	#[AllowDynamicProperties]
16	final class MoCache
17	{
18	private $domain = null;
19	private $cache = [];
20	private $dosave = false;
21	private $override = null;
22	private $upstream = null;
23	private $mofile = null;
24
25	// Avoid warning on get_translations_for_domain.
26	// Reference: wp-includes/pomo/translations.php.
27	public $entries = [];
28	public $headers = [];
29
30	public function __construct($mofile, $domain, $override)
31	{
32	// The $mofile has already been filtered by WordPress core via
33	// apply_filters('load_textdomain_mofile') in load_textdomain()
34	// before calling override_load_textdomain. Re-applying the filter
35	// here causes it to run twice, which breaks plugins with stateful
36	// filter callbacks (e.g. Polylang Pro's PLL_Locale_Fallback::load_file
37	// returns empty on the second pass, causing a PHP 8+ ValueError).
38	$this->mofile = $mofile;
39	$this->domain = $domain;
40	$this->override = $override;
41
42	$cache_key = $domain.'-'.basename($this->mofile, '.mo');
43	$cache_group = 'docketcache-mo';
44
45	if (\function_exists('wp_cache_add_global_groups')) {
46	wp_cache_add_global_groups($cache_group);
47	}
48
49	$mtime = @filemtime($this->mofile);
50	$cache = wp_cache_get($cache_key, $cache_group);
51	if (false !== $cache && !empty($cache['data'])) {
52	if (!empty($cache['time']) && $mtime > $cache['time']) {
53	$this->cache = [];
54	wp_cache_delete($cache_key, $cache_group);
55	} else {
56	$this->cache = $cache['data'];
57	}
58	}
59
60	add_action(
61	'shutdown',
62	function () use ($mtime, $cache_key, $cache_group) {
63	if ($this->dosave) {
64	$cache_data = [
65	'time' => $mtime,
66	'data' => $this->cache,
67	];
68
69	wp_cache_set($cache_key, $cache_data, $cache_group);
70	}
71	},
72	\PHP_INT_MAX
73	);
74	}
75
76	public function translate($text, $context = null)
77	{
78	$args = \func_get_args();
79
80	return $this->get_translation($this->text_key($args), $text, $args);
81	}
82
83	public function translate_plural($singular, $plural, $count, $context = null)
84	{
85	$text = (1 == abs($count)) ? $singular : $plural;
86	$args = \func_get_args();
87
88	return $this->get_translation($this->text_key([$text, $count, $context]), $text, $args);
89	}
90
91	private function text_key($args)
92	{
93	// return substr(md5(serialize([$args, $this->domain])), 0, 12);
94	return md5(serialize([$args, $this->domain]));
95	}
96
97	private function get_translation($text_key, $text, $args)
98	{
99	if (isset($this->cache[$text_key])) {
100	return $this->cache[$text_key];
101	}
102
103	$translate_function = \count($args) > 2 ? 'translate_plural' : 'translate';
104
105	if ($this->override) {
106	if (($translation = \call_user_func_array([$this->override, $translate_function], $args)) !== $text) {
107	$this->dosave = true;
108
109	return $this->cache[$text_key] = $translation;
110	}
111	}
112
113	if (!$this->upstream) {
114	$this->upstream = new \Mo();
115	if (!empty($this->mofile)) {
116	do_action('load_textdomain', $this->domain, $this->mofile);
117	$this->upstream->import_from_file($this->mofile);
118	}
119	}
120
121	if (($translation = \call_user_func_array([$this->upstream, $translate_function], $args)) !== $text) {
122	$this->dosave = true;
123
124	return $this->cache[$text_key] = $translation;
125	}
126
127	$translation = \call_user_func_array([$this->upstream, $translate_function], $args);
128
129	$this->dosave = true;
130
131	return $this->cache[$text_key] = $translation;
132	}
133	}
134