defender-security / lib / packages / DI / Definition / Source / SourceCache.php

SourceCache.php in Defender Security – Malware Scanner, Login Security & Firewall 6.1.0, at lib/packages/DI/Definition/Source/SourceCache.php

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1	<?php
2
3	declare(strict_types=1);
4
5	namespace WPMU_DEV\Defender\Vendor\DI\Definition\Source;
6
7	use WPMU_DEV\Defender\Vendor\DI\Definition\AutowireDefinition;
8	use WPMU_DEV\Defender\Vendor\DI\Definition\Definition;
9	use WPMU_DEV\Defender\Vendor\DI\Definition\ObjectDefinition;
10
11	/**
12	* Decorator that caches another definition source.
13	*
14	* @author Matthieu Napoli <[email protected]>
15	*/
16	class SourceCache implements DefinitionSource, MutableDefinitionSource
17	{
18	public const CACHE_KEY = 'php-di.definitions.';
19
20	public function __construct(
21	private DefinitionSource $cachedSource,
22	private string $cacheNamespace = '',
23	) {
24	}
25
26	public function getDefinition(string $name) : ?Definition
27	{
28	$definition = apcu_fetch($this->getCacheKey($name));
29
30	if ($definition === false) {
31	$definition = $this->cachedSource->getDefinition($name);
32
33	// Update the cache
34	if ($this->shouldBeCached($definition)) {
35	apcu_store($this->getCacheKey($name), $definition);
36	}
37	}
38
39	return $definition;
40	}
41
42	/**
43	* Used only for the compilation so we can skip the cache safely.
44	*/
45	public function getDefinitions() : array
46	{
47	return $this->cachedSource->getDefinitions();
48	}
49
50	public static function isSupported() : bool
51	{
52	return function_exists('apcu_fetch')
53	&& ini_get('apc.enabled')
54	&& ! ('cli' === \PHP_SAPI && ! ini_get('apc.enable_cli'));
55	}
56
57	public function getCacheKey(string $name) : string
58	{
59	return self::CACHE_KEY . $this->cacheNamespace . $name;
60	}
61
62	public function addDefinition(Definition $definition) : void
63	{
64	throw new \LogicException('You cannot set a definition at runtime on a container that has caching enabled. Doing so would risk caching the definition for the next execution, where it might be different. You can either put your definitions in a file, remove the cache or ->set() a raw value directly (PHP object, string, int, ...) instead of a PHP-WPMU_DEV\Defender\Vendor\DI definition.');
65	}
66
67	private function shouldBeCached(?Definition $definition = null) : bool
68	{
69	return
70	// Cache missing definitions
71	($definition === null)
72	// Object definitions are used with `make()`
73	\|\| ($definition instanceof ObjectDefinition)
74	// Autowired definitions cannot be all compiled and are used with `make()`
75	\|\| ($definition instanceof AutowireDefinition);
76	}
77	}
78