class-latest-autoloader-guard.php — Hostinger Reach – AI-Powered Email Marketing for WordPress 1.7.0

hostinger-reach / vendor / automattic / jetpack-autoloader / src / class-latest-autoloader-guard.php

hostinger-reach / vendor / automattic / jetpack-autoloader / src Last commit date

class-latest-autoloader-guard.php

158 lines

1	<?php
2	/* HEADER */ // phpcs:ignore
3
4	/**
5	* This class ensures that we're only executing the latest autoloader.
6	*/
7	class Latest_Autoloader_Guard {
8
9	/**
10	* The Plugins_Handler instance.
11	*
12	* @var Plugins_Handler
13	*/
14	private $plugins_handler;
15
16	/**
17	* The Autoloader_Handler instance.
18	*
19	* @var Autoloader_Handler
20	*/
21	private $autoloader_handler;
22
23	/**
24	* The Autoloader_locator instance.
25	*
26	* @var Autoloader_Locator
27	*/
28	private $autoloader_locator;
29
30	/**
31	* The constructor.
32	*
33	* @param Plugins_Handler $plugins_handler The Plugins_Handler instance.
34	* @param Autoloader_Handler $autoloader_handler The Autoloader_Handler instance.
35	* @param Autoloader_Locator $autoloader_locator The Autoloader_Locator instance.
36	*/
37	public function __construct( $plugins_handler, $autoloader_handler, $autoloader_locator ) {
38	$this->plugins_handler = $plugins_handler;
39	$this->autoloader_handler = $autoloader_handler;
40	$this->autoloader_locator = $autoloader_locator;
41	}
42
43	/**
44	* Indicates whether or not the autoloader should be initialized. Note that this function
45	* has the side-effect of actually loading the latest autoloader in the event that this
46	* is not it.
47	*
48	* @param string $current_plugin The current plugin we're checking.
49	* @param string[] $plugins The active plugins to check for autoloaders in.
50	* @param bool $was_included_by_autoloader Indicates whether or not this autoloader was included by another.
51	*
52	* @return bool True if we should stop initialization, otherwise false.
53	*/
54	public function should_stop_init( $current_plugin, $plugins, $was_included_by_autoloader ) {
55	global $jetpack_autoloader_latest_version;
56
57	// We need to reset the autoloader when the plugins change because
58	// that means the autoloader was generated with a different list.
59	if ( $this->plugins_handler->have_plugins_changed( $plugins ) ) {
60	$this->autoloader_handler->reset_autoloader();
61	}
62
63	// When the latest autoloader has already been found we don't need to search for it again.
64	// We should take care however because this will also trigger if the autoloader has been
65	// included by an older one.
66	if ( isset( $jetpack_autoloader_latest_version ) && ! $was_included_by_autoloader ) {
67	return true;
68	}
69
70	$latest_plugin = $this->autoloader_locator->find_latest_autoloader( $plugins, $jetpack_autoloader_latest_version );
71	if ( isset( $latest_plugin ) && $latest_plugin !== $current_plugin ) {
72	require $this->autoloader_locator->get_autoloader_path( $latest_plugin );
73	return true;
74	}
75
76	return false;
77	}
78
79	/**
80	* Check for conflicting autoloaders.
81	*
82	* A common source of strange and confusing problems is when another plugin
83	* registers a Composer autoloader at a higher priority that us. If enabled,
84	* check for this problem and warn about it.
85	*
86	* Called from the plugins_loaded hook.
87	*
88	* @since 3.1.0
89	* @return void
90	*/
91	public function check_for_conflicting_autoloaders() {
92	if ( ! defined( 'JETPACK_AUTOLOAD_DEBUG_CONFLICTING_LOADERS' ) \|\| ! JETPACK_AUTOLOAD_DEBUG_CONFLICTING_LOADERS ) {
93	return;
94	}
95
96	global $jetpack_autoloader_loader;
97	if ( ! isset( $jetpack_autoloader_loader ) ) {
98	return;
99	}
100	$prefixes = array();
101	foreach ( ( $jetpack_autoloader_loader->get_class_map() ?? array() ) as $classname => $data ) {
102	$parts = explode( '\\', trim( $classname, '\\' ) );
103	array_pop( $parts );
104	while ( $parts ) {
105	$prefixes[ implode( '\\', $parts ) . '\\' ] = true;
106	array_pop( $parts );
107	}
108	}
109	foreach ( ( $jetpack_autoloader_loader->get_psr4_map() ?? array() ) as $prefix => $data ) {
110	$parts = explode( '\\', trim( $prefix, '\\' ) );
111	while ( $parts ) {
112	$prefixes[ implode( '\\', $parts ) . '\\' ] = true;
113	array_pop( $parts );
114	}
115	}
116
117	$autoload_chain = spl_autoload_functions();
118	if ( ! $autoload_chain ) {
119	return;
120	}
121
122	foreach ( $autoload_chain as $autoloader ) {
123	// No need to check anything after us.
124	if ( is_array( $autoloader ) && is_string( $autoloader[0] ) && substr( $autoloader[0], 0, strlen( __NAMESPACE__ ) + 1 ) === __NAMESPACE__ . '\\' ) {
125	break;
126	}
127
128	// We can check Composer autoloaders easily enough.
129	if ( is_array( $autoloader ) && $autoloader[0] instanceof \Composer\Autoload\ClassLoader && is_callable( array( $autoloader[0], 'getPrefixesPsr4' ) ) ) {
130	$composer_autoloader = $autoloader[0];
131	foreach ( $composer_autoloader->getClassMap() as $classname => $path ) {
132	if ( $jetpack_autoloader_loader->find_class_file( $classname ) ) {
133	$msg = "A Composer autoloader is registered with a higher priority than the Jetpack Autoloader and would also handle some of the classes we handle (e.g. $classname => $path). This may cause strange and confusing problems.";
134	wp_trigger_error( '', $msg );
135	continue 2;
136	}
137	}
138	foreach ( $composer_autoloader->getPrefixesPsr4() as $prefix => $paths ) {
139	if ( isset( $prefixes[ $prefix ] ) ) {
140	$path = array_pop( $paths );
141	$msg = "A Composer autoloader is registered with a higher priority than the Jetpack Autoloader and would also handle some of the namespaces we handle (e.g. $prefix => $path). This may cause strange and confusing problems.";
142	wp_trigger_error( '', $msg );
143	continue 2;
144	}
145	}
146	foreach ( $composer_autoloader->getPrefixes() as $prefix => $paths ) {
147	if ( isset( $prefixes[ $prefix ] ) ) {
148	$path = array_pop( $paths );
149	$msg = "A Composer autoloader is registered with a higher priority than the Jetpack Autoloader and would also handle some of the namespaces we handle (e.g. $prefix => $path). This may cause strange and confusing problems.";
150	wp_trigger_error( '', $msg );
151	continue 2;
152	}
153	}
154	}
155	}
156	}
157	}
158