class-latest-autoloader-guard.php — Jetpack – WP Security, Backup, Speed, & Growth 15.9-a.7

jetpack / vendor / jetpack-autoloader / class-latest-autoloader-guard.php

jetpack / vendor / jetpack-autoloader Last commit date

class-latest-autoloader-guard.php

166 lines

1	<?php
2	/**
3	* This file was automatically generated by automattic/jetpack-autoloader.
4	*
5	* @package automattic/jetpack-autoloader
6	*/
7
8	namespace Automattic\Jetpack\Autoloader\jpf11009ded9fc4592b6a05b61ce272b3c_jetpackⓥ15_9_a_7\al5_0_18;
9
10	// phpcs:ignore
11
12	/**
13	* This class ensures that we're only executing the latest autoloader.
14	*/
15	class Latest_Autoloader_Guard {
16
17	/**
18	* The Plugins_Handler instance.
19	*
20	* @var Plugins_Handler
21	*/
22	private $plugins_handler;
23
24	/**
25	* The Autoloader_Handler instance.
26	*
27	* @var Autoloader_Handler
28	*/
29	private $autoloader_handler;
30
31	/**
32	* The Autoloader_locator instance.
33	*
34	* @var Autoloader_Locator
35	*/
36	private $autoloader_locator;
37
38	/**
39	* The constructor.
40	*
41	* @param Plugins_Handler $plugins_handler The Plugins_Handler instance.
42	* @param Autoloader_Handler $autoloader_handler The Autoloader_Handler instance.
43	* @param Autoloader_Locator $autoloader_locator The Autoloader_Locator instance.
44	*/
45	public function __construct( $plugins_handler, $autoloader_handler, $autoloader_locator ) {
46	$this->plugins_handler = $plugins_handler;
47	$this->autoloader_handler = $autoloader_handler;
48	$this->autoloader_locator = $autoloader_locator;
49	}
50
51	/**
52	* Indicates whether or not the autoloader should be initialized. Note that this function
53	* has the side-effect of actually loading the latest autoloader in the event that this
54	* is not it.
55	*
56	* @param string $current_plugin The current plugin we're checking.
57	* @param string[] $plugins The active plugins to check for autoloaders in.
58	* @param bool $was_included_by_autoloader Indicates whether or not this autoloader was included by another.
59	*
60	* @return bool True if we should stop initialization, otherwise false.
61	*/
62	public function should_stop_init( $current_plugin, $plugins, $was_included_by_autoloader ) {
63	global $jetpack_autoloader_latest_version;
64
65	// We need to reset the autoloader when the plugins change because
66	// that means the autoloader was generated with a different list.
67	if ( $this->plugins_handler->have_plugins_changed( $plugins ) ) {
68	$this->autoloader_handler->reset_autoloader();
69	}
70
71	// When the latest autoloader has already been found we don't need to search for it again.
72	// We should take care however because this will also trigger if the autoloader has been
73	// included by an older one.
74	if ( isset( $jetpack_autoloader_latest_version ) && ! $was_included_by_autoloader ) {
75	return true;
76	}
77
78	$latest_plugin = $this->autoloader_locator->find_latest_autoloader( $plugins, $jetpack_autoloader_latest_version );
79	if ( isset( $latest_plugin ) && $latest_plugin !== $current_plugin ) {
80	require $this->autoloader_locator->get_autoloader_path( $latest_plugin );
81	return true;
82	}
83
84	return false;
85	}
86
87	/**
88	* Check for conflicting autoloaders.
89	*
90	* A common source of strange and confusing problems is when another plugin
91	* registers a Composer autoloader at a higher priority that us. If enabled,
92	* check for this problem and warn about it.
93	*
94	* Called from the plugins_loaded hook.
95	*
96	* @since 3.1.0
97	* @return void
98	*/
99	public function check_for_conflicting_autoloaders() {
100	if ( ! defined( 'JETPACK_AUTOLOAD_DEBUG_CONFLICTING_LOADERS' ) \|\| ! JETPACK_AUTOLOAD_DEBUG_CONFLICTING_LOADERS ) {
101	return;
102	}
103
104	global $jetpack_autoloader_loader;
105	if ( ! isset( $jetpack_autoloader_loader ) ) {
106	return;
107	}
108	$prefixes = array();
109	foreach ( ( $jetpack_autoloader_loader->get_class_map() ?? array() ) as $classname => $data ) {
110	$parts = explode( '\\', trim( $classname, '\\' ) );
111	array_pop( $parts );
112	while ( $parts ) {
113	$prefixes[ implode( '\\', $parts ) . '\\' ] = true;
114	array_pop( $parts );
115	}
116	}
117	foreach ( ( $jetpack_autoloader_loader->get_psr4_map() ?? array() ) as $prefix => $data ) {
118	$parts = explode( '\\', trim( $prefix, '\\' ) );
119	while ( $parts ) {
120	$prefixes[ implode( '\\', $parts ) . '\\' ] = true;
121	array_pop( $parts );
122	}
123	}
124
125	$autoload_chain = spl_autoload_functions();
126	if ( ! $autoload_chain ) {
127	return;
128	}
129
130	foreach ( $autoload_chain as $autoloader ) {
131	// No need to check anything after us.
132	if ( is_array( $autoloader ) && is_string( $autoloader[0] ) && substr( $autoloader[0], 0, strlen( __NAMESPACE__ ) + 1 ) === __NAMESPACE__ . '\\' ) {
133	break;
134	}
135
136	// We can check Composer autoloaders easily enough.
137	if ( is_array( $autoloader ) && $autoloader[0] instanceof \Composer\Autoload\ClassLoader && is_callable( array( $autoloader[0], 'getPrefixesPsr4' ) ) ) {
138	$composer_autoloader = $autoloader[0];
139	foreach ( $composer_autoloader->getClassMap() as $classname => $path ) {
140	if ( $jetpack_autoloader_loader->find_class_file( $classname ) ) {
141	$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.";
142	wp_trigger_error( '', $msg );
143	continue 2;
144	}
145	}
146	foreach ( $composer_autoloader->getPrefixesPsr4() 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	foreach ( $composer_autoloader->getPrefixes() as $prefix => $paths ) {
155	if ( isset( $prefixes[ $prefix ] ) ) {
156	$path = array_pop( $paths );
157	$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.";
158	wp_trigger_error( '', $msg );
159	continue 2;
160	}
161	}
162	}
163	}
164	}
165	}
166