prevent-browser-caching / prevent-browser-caching.php

prevent-browser-caching.php in Prevent Browser Caching trunk, at prevent-browser-caching.php

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1	<?php
2	/**
3	* Plugin Name: Prevent Browser Caching
4	* Description: Prevents browser cache problems: visitors always get the current version of your CSS, JS, images and pages, while caching keeps working.
5	* Version: 3.2.1
6	* Requires at least: 4.7
7	* Requires PHP: 7.2
8	* Author: Kostya Tereshchuk
9	* Author URI: https://tutori.org/kostya/
10	* License: GPLv2 or later
11	* License URI: http://www.gnu.org/licenses/gpl-2.0.txt
12	* Text Domain: prevent-browser-caching
13	* Domain Path: /lang/
14	*/
15
16	// Exit if accessed directly.
17	if ( ! defined( 'ABSPATH' ) ) {
18	exit;
19	}
20
21	if ( ! defined( 'PREVENT_BROWSER_CACHING_VERSION' ) ) {
22	define( 'PREVENT_BROWSER_CACHING_VERSION', '3.2.1' );
23	}
24
25	if ( defined( 'WP_CLI' ) && WP_CLI ) {
26	include_once dirname( __FILE__ ) . '/includes/class-prevent-browser-caching-cli.php';
27	}
28
29	add_action( 'wp_abilities_api_init', 'prevent_browser_caching_register_abilities' );
30
31	if ( ! function_exists( 'prevent_browser_caching_register_abilities' ) ) {
32	/**
33	* Register the plugin's abilities (no-op on WordPress without the Abilities API).
34	*/
35	function prevent_browser_caching_register_abilities()
36	{
37	if ( ! function_exists( 'wp_register_ability' ) ) {
38	return;
39	}
40
41	include_once dirname( __FILE__ ) . '/includes/class-prevent-browser-caching-abilities.php';
42
43	Prevent_Browser_Caching_Abilities::register();
44	}
45	}
46
47	if ( ! function_exists( 'prevent_browser_caching_plugin_actions' ) ) {
48	/**
49	* Add settings to plugin links.
50	* @param $actions
51	* @return mixed
52	*/
53	function prevent_browser_caching_plugin_actions( $actions )
54	{
55	array_unshift( $actions, "<a href=\"" . esc_url( menu_page_url( 'prevent-browser-caching', false ) ) . "\">" . esc_html__( "Settings", "prevent-browser-caching" ) . "</a>" );
56	return $actions;
57	}
58	add_filter( 'plugin_action_links_' . plugin_basename(__FILE__), 'prevent_browser_caching_plugin_actions', 10, 1 );
59	}
60
61	if ( ! function_exists( 'prevent_browser_caching_load_textdomain' ) ) {
62	/**
63	* Set languages directory.
64	*/
65	function prevent_browser_caching_load_textdomain()
66	{
67	load_plugin_textdomain( 'prevent-browser-caching', false, dirname( plugin_basename( __FILE__ ) ) . '/lang/' );
68	}
69	add_action( 'plugins_loaded', 'prevent_browser_caching_load_textdomain' );
70	}
71
72	if ( ! function_exists( 'prevent_browser_caching' ) ) {
73	/**
74	* Changes the version of CSS and JS files.
75	* Disables loading Prevent_Browser_Caching class if this function is used before setup theme.
76	*
77	* @param array $args
78	*/
79	function prevent_browser_caching( $args = array() ) {
80	if ( ! class_exists( 'Prevent_Browser_Caching_Function' ) ) {
81	include_once 'includes/class-prevent-browser-caching-function.php';
82	}
83
84	Prevent_Browser_Caching_Function::instance( $args );
85	}
86	}
87
88	if ( ! function_exists( 'maybe_load_class_prevent_browser_caching' ) ) {
89	/**
90	* Load Prevent_Browser_Caching class if the function prevent_browser_caching is not used before setup theme.
91	*/
92	function maybe_load_class_prevent_browser_caching()
93	{
94	if ( ! class_exists( 'Prevent_Browser_Caching' ) && ! class_exists( 'Prevent_Browser_Caching_Function' ) ) {
95	include_once 'includes/class-prevent-browser-caching.php';
96	}
97	}
98
99	add_action( 'after_setup_theme', 'maybe_load_class_prevent_browser_caching' );
100	}
101
102	if ( ! function_exists( 'prevent_browser_caching_activate' ) ) {
103	/**
104	* On activation: store the recommended defaults for fresh installs (an existing
105	* option is never overwritten) and remember to open the settings page.
106	*/
107	function prevent_browser_caching_activate( $network_wide = false )
108	{
109	if ( ! class_exists( 'Prevent_Browser_Caching' ) ) {
110	include_once dirname( __FILE__ ) . '/includes/class-prevent-browser-caching.php';
111	}
112
113	add_option( 'prevent_browser_caching_options', Prevent_Browser_Caching::get_fresh_defaults() );
114
115	// Fresh installs never see the "what's new" notice; upgraded sites
116	// (option row already exists, no seen-version yet) see it once.
117	add_option( 'prevent_browser_caching_seen_version', PREVENT_BROWSER_CACHING_VERSION, '', false );
118
119	// A re-activation with the cache-policy option on must restore the
120	// .htaccess block that deactivation removed.
121	$pbc_existing = get_option( 'prevent_browser_caching_options' );
122
123	if ( is_array( $pbc_existing ) && ! empty( $pbc_existing['cache_policy'] ) ) {
124	Prevent_Browser_Caching::require_cache_policy_class();
125	Prevent_Browser_Caching_Cache_Policy::sync( array(), Prevent_Browser_Caching::instance()->filter_options( $pbc_existing ) );
126	}
127
128	if ( ! $network_wide ) {
129	set_transient( 'pbc_activation_redirect', 1, MINUTE_IN_SECONDS );
130	}
131	}
132	register_activation_hook( __FILE__, 'prevent_browser_caching_activate' );
133	}
134
135	if ( ! function_exists( 'prevent_browser_caching_deactivate' ) ) {
136	/**
137	* On deactivation: a disabled plugin must leave no server-config footprint,
138	* so the .htaccess cache-policy block is removed (options are kept).
139	*/
140	function prevent_browser_caching_deactivate()
141	{
142	if ( ! class_exists( 'Prevent_Browser_Caching' ) ) {
143	include_once dirname( __FILE__ ) . '/includes/class-prevent-browser-caching.php';
144	}
145
146	Prevent_Browser_Caching::require_cache_policy_class();
147
148	Prevent_Browser_Caching_Cache_Policy::remove_rules();
149	delete_option( Prevent_Browser_Caching_Cache_Policy::PROBE_OPTION );
150	}
151	register_deactivation_hook( __FILE__, 'prevent_browser_caching_deactivate' );
152	}
153
154	if ( ! function_exists( 'prevent_browser_caching_activation_redirect' ) ) {
155	/**
156	* Open the settings page right after a single-plugin activation.
157	*/
158	function prevent_browser_caching_activation_redirect()
159	{
160	if ( ! get_transient( 'pbc_activation_redirect' ) ) {
161	return;
162	}
163
164	delete_transient( 'pbc_activation_redirect' );
165
166	if ( isset( $_GET['activate-multi'] ) \|\| wp_doing_ajax() \|\| ! current_user_can( 'manage_options' ) ) {
167	return;
168	}
169
170	wp_safe_redirect( admin_url( 'options-general.php?page=prevent-browser-caching' ) );
171	exit;
172	}
173	add_action( 'admin_init', 'prevent_browser_caching_activation_redirect' );
174	}
175
176	if ( is_admin() ) {
177	include_once 'includes/admin/class-prevent-browser-caching-admin-settings.php';
178	}
179