opcache-reset / opcache-admin.php

opcache-admin.php in OPcache Reset trunk, at opcache-admin.php

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1	<?php
2	/**
3	* OPcache Reset Admin functionality.
4	*
5	* Handles admin notices and file invalidation in the plugin/theme editors.
6	*
7	* @package opcache-reset
8	*/
9
10	// Prevent direct access.
11	if ( ! defined( 'ABSPATH' ) ) {
12	exit;
13	}
14
15	/**
16	* Get the Linux distribution name.
17	*
18	* @return string\|null The distribution name or null if not found.
19	*/
20	function gps_opcache_get_linux_distro() {
21	// Declare Linux distros (extensible list).
22	$distros = array(
23	'Arch' => 'arch-release',
24	'Debian' => 'debian_version',
25	'Fedora' => 'fedora-release',
26	'Ubuntu' => 'lsb-release',
27	'Redhat' => 'redhat-release',
28	'CentOS' => 'centos-release',
29	);
30
31	// Get everything from /etc directory.
32	$etc_list = scandir( '/etc' );
33
34	// Loop through /etc results.
35	$os_distro = null;
36	foreach ( $etc_list as $entry ) {
37	// Loop through list of distros.
38	foreach ( $distros as $distro_release_file ) {
39	// Match was found.
40	if ( $distro_release_file === $entry ) {
41	// Find distros array key (i.e. Distro name) by value (i.e. distro release file).
42	$os_distro = array_search( $distro_release_file, $distros, true );
43	break 2; // Break inner and outer loop.
44	}
45	}
46	}
47
48	return $os_distro;
49	}
50
51	/**
52	* Display success notice for OPcache invalidation.
53	*/
54	function gps_opcache_edit_success() {
55	?>
56	<style>.updated.notice { display: none; }</style>
57	<div class="notice notice-success is-dismissible">
58	<p><?php esc_html_e( 'File edited successfully and invalidated in bytecode cache.', 'opcache-reset' ); ?></p>
59	</div>
60	<?php
61	}
62
63	/**
64	* Display warning notice when OPcache had nothing to invalidate.
65	*/
66	function gps_opcache_edit_warning() {
67	// phpcs:ignore WordPress.Security.NonceVerification.Recommended -- Nonce verified in calling function.
68	$file = isset( $_REQUEST['file'] ) ? sanitize_file_name( wp_unslash( $_REQUEST['file'] ) ) : '';
69	?>
70	<div class="notice notice-warning is-dismissible">
71	<p>
72	<?php
73	printf(
74	/* translators: %s: file path */
75	esc_html__( 'OPcache had nothing to invalidate for %s.', 'opcache-reset' ),
76	esc_html( WP_PLUGIN_DIR . '/' . $file )
77	);
78	?>
79	</p>
80	</div>
81	<?php
82	}
83
84	/**
85	* Hook into plugin editor to invalidate OPcache for edited files.
86	*/
87	function gps_opcache_plugin_editor() {
88	// phpcs:ignore WordPress.Security.NonceVerification.Recommended -- This runs after WordPress core has already verified the nonce.
89	if ( isset( $_GET['a'] ) && isset( $_REQUEST['file'] ) ) {
90	// phpcs:ignore WordPress.Security.NonceVerification.Recommended
91	$file = sanitize_file_name( wp_unslash( $_REQUEST['file'] ) );
92	// File was edited successfully and we know the filename.
93	if ( opcache_invalidate( WP_PLUGIN_DIR . '/' . $file ) ) {
94	add_action( 'admin_notices', 'gps_opcache_edit_success', 999 );
95	} else {
96	add_action( 'admin_notices', 'gps_opcache_edit_warning', 999 );
97	}
98	}
99	}
100	add_action( 'load-plugin-editor.php', 'gps_opcache_plugin_editor' );
101
102	/**
103	* Handle OPcache invalidation on admin init for file edits.
104	*/
105	function gps_opcache_admin_init() {
106	// phpcs:ignore WordPress.Security.ValidatedSanitizedInput.InputNotValidated
107	if ( isset( $_SERVER['REQUEST_METHOD'] ) && 'POST' === $_SERVER['REQUEST_METHOD'] && ( current_user_can( 'edit_themes' ) \|\| current_user_can( 'edit_plugins' ) ) ) {
108	// phpcs:disable WordPress.Security.NonceVerification.Recommended -- This runs after WordPress core has already verified the nonce for file editing.
109	if ( isset( $_REQUEST['file'] ) ) {
110	$file = sanitize_text_field( wp_unslash( $_REQUEST['file'] ) );
111	opcache_invalidate( $file );
112	} elseif ( isset( $_REQUEST['action'] ) && isset( $_REQUEST['filename'] ) ) {
113	$filename = sanitize_text_field( wp_unslash( $_REQUEST['filename'] ) );
114	// phpcs:enable WordPress.Security.NonceVerification.Recommended
115	opcache_invalidate( $filename );
116	}
117	}
118	}
119	add_action( 'init', 'gps_opcache_admin_init', 1 );
120