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<?php

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* Plugin Name: WP Super Cache

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* Plugin URI: https://wordpress.org/plugins/wp-super-cache/

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* Description: Very fast caching plugin for WordPress.

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* Version: 1.12.4

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* Author: Automattic

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* Author URI: https://automattic.com/

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* License: GPL2+

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* License URI: https://www.gnu.org/licenses/gpl-2.0.txt

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* Text Domain: wp-super-cache

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This program is free software; you can redistribute it and/or modify

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it under the terms of the GNU General Public License as published by

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the Free Software Foundation; either version 2 of the License, or

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(at your option) any later version.

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This program is distributed in the hope that it will be useful,

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but WITHOUT ANY WARRANTY; without even the implied warranty of

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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

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GNU General Public License for more details.

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You should have received a copy of the GNU General Public License

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along with this program; if not, write to the Free Software

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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA

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define( 'WPSC_VERSION_ID', '1.12.1' );

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require_once( __DIR__. '/inc/delete-cache-button.php');

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require_once( __DIR__. '/inc/preload-notification.php');

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require_once __DIR__ . '/inc/boost.php';

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if ( ! function_exists( 'wp_cache_phase2' ) ) {

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require_once( __DIR__. '/wp-cache-phase2.php');

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}

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if ( ! defined( 'PHP_VERSION_ID' ) ) {

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// For versions of PHP below 5.2.7, this constant doesn't exist.

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$wpsc_php_version = explode( '.', PHP_VERSION );

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define( 'PHP_VERSION_ID', intval( $wpsc_php_version[0] * 10000 + $wpsc_php_version[1] * 100 + $wpsc_php_version[2] ) );

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unset( $wpsc_php_version );

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}

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/**

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* Defines how many posts to preload per loop.

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if ( ! defined( 'WPSC_PRELOAD_POST_COUNT' ) ) {

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define( 'WPSC_PRELOAD_POST_COUNT', 10 );

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}

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/**

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* Defines the interval in seconds between preloading pages.

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if ( ! defined( 'WPSC_PRELOAD_POST_INTERVAL' ) ) {

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define( 'WPSC_PRELOAD_POST_INTERVAL', 1 );

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}

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/**

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* Defines the interval in seconds between preloading loops.

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if ( ! defined( 'WPSC_PRELOAD_LOOP_INTERVAL' ) ) {

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define( 'WPSC_PRELOAD_LOOP_INTERVAL', 0 );

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}

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function wpsc_init() {

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global $wp_cache_config_file, $wp_cache_config_file_sample, $wpsc_advanced_cache_dist_filename, $wp_cache_check_wp_config, $wpsc_advanced_cache_filename, $wpsc_promo_links;

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if ( ! defined( 'WPCACHECONFIGPATH' ) ) {

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define( 'WPCACHECONFIGPATH', WP_CONTENT_DIR );

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}

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$wp_cache_config_file = WPCACHECONFIGPATH . '/wp-cache-config.php';

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// Centralise the promotional links to other products

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$wpsc_promo_links = array(

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'boost' => 'https://jetpack.com/boost/?utm_source=wporg&utm_medium=plugin&utm_campaign=wp-super-cache&utm_id=wp-super-cache',

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'photon' => 'https://jetpack.com/features/design/content-delivery-network/?utm_source=wporg&utm_medium=plugin&utm_campaign=wp-super-cache&utm_id=wp-super-cache',

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'videopress' => 'https://jetpack.com/videopress/?utm_source=wporg&utm_medium=plugin&utm_campaign=wp-super-cache&utm_id=wp-super-cache',

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'crowdsignal' => 'https://crowdsignal.com/?utm_source=wporg&utm_medium=plugin&utm_campaign=wp-super-cache&utm_id=wp-super-cache',

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'jetpack' => 'https://jetpack.com/?utm_source=wporg&utm_medium=plugin&utm_campaign=wp-super-cache&utm_id=wp-super-cache',

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);

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if ( !defined( 'WPCACHEHOME' ) ) {

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define( 'WPCACHEHOME', __DIR__ . '/' );

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$wp_cache_config_file_sample = WPCACHEHOME . 'wp-cache-config-sample.php';

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$wpsc_advanced_cache_dist_filename = WPCACHEHOME . 'advanced-cache.php';

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} elseif ( realpath( WPCACHEHOME ) != realpath( __DIR__ ) ) {

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$wp_cache_config_file_sample = __DIR__. '/wp-cache-config-sample.php';

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$wpsc_advanced_cache_dist_filename = __DIR__. '/advanced-cache.php';

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if ( ! defined( 'ADVANCEDCACHEPROBLEM' ) ) {

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define( 'ADVANCEDCACHEPROBLEM', 1 ); // force an update of WPCACHEHOME

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}

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} else {

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$wp_cache_config_file_sample = WPCACHEHOME . 'wp-cache-config-sample.php';

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$wpsc_advanced_cache_dist_filename = WPCACHEHOME . 'advanced-cache.php';

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}

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$wpsc_advanced_cache_filename = WP_CONTENT_DIR . '/advanced-cache.php';

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if ( !defined( 'WP_CACHE' ) || ( defined( 'WP_CACHE' ) && constant( 'WP_CACHE' ) == false ) ) {

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$wp_cache_check_wp_config = true;

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}

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}

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wpsc_init();

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/**

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* WP-CLI requires explicit declaration of global variables.

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* It's minimal list of global variables.

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global $super_cache_enabled, $cache_enabled, $wp_cache_mod_rewrite, $wp_cache_home_path, $cache_path, $file_prefix;

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global $wp_cache_mutex_disabled, $mutex_filename, $sem_id, $wp_super_cache_late_init;

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global $cache_compression, $cache_max_time, $wp_cache_shutdown_gc, $cache_rebuild_files;

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global $wp_super_cache_debug, $wp_super_cache_advanced_debug, $wp_cache_debug_level, $wp_cache_debug_to_file;

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global $wp_cache_debug_log, $wp_cache_debug_ip, $wp_cache_debug_username, $wp_cache_debug_email;

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global $cache_time_interval, $cache_scheduled_time, $cache_schedule_interval, $cache_schedule_type, $cache_gc_email_me;

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global $wp_cache_preload_on, $wp_cache_preload_interval, $wp_cache_preload_posts, $wp_cache_preload_taxonomies;

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// phpcs:ignore VariableAnalysis.CodeAnalysis.VariableAnalysis.UnusedVariable -- these are used by various functions but the linter complains.

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global $wp_cache_preload_email_me, $wp_cache_preload_email_volume;

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global $wp_cache_mobile, $wp_cache_mobile_enabled, $wp_cache_mobile_browsers, $wp_cache_mobile_prefixes;

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global $wp_cache_config_file, $wp_cache_config_file_sample;

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// Check is cache config already loaded.

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if ( ! isset( $cache_enabled, $super_cache_enabled, $wp_cache_mod_rewrite, $cache_path ) &&

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empty( $wp_cache_phase1_loaded ) &&

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// phpcs:ignore Generic.PHP.NoSilencedErrors.Discouraged

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! @include( $wp_cache_config_file )

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) {

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@include $wp_cache_config_file_sample; // phpcs:ignore Generic.PHP.NoSilencedErrors.Discouraged

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}

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include(WPCACHEHOME . 'wp-cache-base.php');

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if ( class_exists( 'WP_REST_Controller' ) ) {

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include( __DIR__. '/rest/load.php' );

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}

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function wp_super_cache_init_action() {

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load_plugin_textdomain( 'wp-super-cache', false, basename( __DIR__ ) . '/languages' );

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wpsc_register_post_hooks();

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}

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add_action( 'init', 'wp_super_cache_init_action' );

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function wp_cache_set_home() {

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global $wp_cache_is_home;

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$wp_cache_is_home = ( is_front_page() || is_home() );

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if ( $wp_cache_is_home && is_paged() )

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$wp_cache_is_home = false;

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}

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add_action( 'template_redirect', 'wp_cache_set_home' );

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function wpsc_enqueue_styles() {

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wp_enqueue_style(

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'wpsc_styles',

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plugins_url( 'styling/dashboard.css', __FILE__ ),

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array(),

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filemtime( plugin_dir_path( __FILE__ ) . 'styling/dashboard.css' )

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);

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}

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// Check for the page parameter to see if we're on a WPSC page.

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// phpcs:ignore WordPress.Security.NonceVerification.Recommended

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if ( isset( $_GET['page'] ) && $_GET['page'] === 'wpsupercache' ) {

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add_action( 'admin_enqueue_scripts', 'wpsc_enqueue_styles' );

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}

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// OSSDL CDN plugin (https://wordpress.org/plugins/ossdl-cdn-off-linker/)

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include_once( WPCACHEHOME . 'ossdl-cdn.php' );

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function get_wpcachehome() {

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if ( function_exists( '_deprecated_function' ) ) {

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_deprecated_function( __FUNCTION__, 'WP Super Cache 1.6.5' );

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}

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if ( ! defined( 'WPCACHEHOME' ) ) {

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if ( is_file( __DIR__ . '/wp-cache-config-sample.php' ) ) {

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define( 'WPCACHEHOME', trailingslashit( __DIR__ ) );

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} elseif ( is_file( __DIR__ . '/wp-super-cache/wp-cache-config-sample.php' ) ) {

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define( 'WPCACHEHOME', __DIR__ . '/wp-super-cache/' );

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} else {

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die( sprintf( esc_html__( 'Please create %s/wp-cache-config.php from wp-super-cache/wp-cache-config-sample.php', 'wp-super-cache' ), esc_attr( WPCACHECONFIGPATH ) ) );

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}

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}

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}

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function wpsc_remove_advanced_cache() {

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global $wpsc_advanced_cache_filename;

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if ( file_exists( $wpsc_advanced_cache_filename ) ) {

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$file = file_get_contents( $wpsc_advanced_cache_filename );

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if (

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strpos( $file, "WP SUPER CACHE 0.8.9.1" ) ||

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strpos( $file, "WP SUPER CACHE 1.2" )

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) {

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unlink( $wpsc_advanced_cache_filename );

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}

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}

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}

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function wpsupercache_uninstall() {

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global $wp_cache_config_file, $cache_path;

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wpsc_remove_advanced_cache();

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if ( file_exists( $wp_cache_config_file ) ) {

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unlink( $wp_cache_config_file );

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}

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wp_cache_remove_index();

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if ( ! empty( $cache_path ) ) {

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@unlink( $cache_path . '.htaccess' );

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@unlink( $cache_path . 'meta' );

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@unlink( $cache_path . 'supercache' );

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}

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wp_clear_scheduled_hook( 'wp_cache_check_site_hook' );

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wp_clear_scheduled_hook( 'wp_cache_gc' );

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wp_clear_scheduled_hook( 'wp_cache_gc_watcher' );

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wp_cache_disable_plugin();

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delete_site_option( 'wp_super_cache_index_detected' );

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}

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if ( is_admin() ) {

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register_uninstall_hook( __FILE__, 'wpsupercache_uninstall' );

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}

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function wpsupercache_deactivate() {

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global $wp_cache_config_file, $wpsc_advanced_cache_filename, $cache_path;

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wpsc_remove_advanced_cache();

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if ( ! empty( $cache_path ) ) {

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prune_super_cache( $cache_path, true );

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wp_cache_remove_index();

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@unlink( $cache_path . '.htaccess' );

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@unlink( $cache_path . 'meta' );

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@unlink( $cache_path . 'supercache' );

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}

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wp_clear_scheduled_hook( 'wp_cache_check_site_hook' );

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wp_clear_scheduled_hook( 'wp_cache_gc' );

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wp_clear_scheduled_hook( 'wp_cache_gc_watcher' );

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wp_cache_replace_line('^ *\$cache_enabled', '$cache_enabled = false;', $wp_cache_config_file);

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wp_cache_disable_plugin( false ); // don't delete configuration file

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delete_user_option( get_current_user_id(), 'wpsc_dismissed_boost_banner' );

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}

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register_deactivation_hook( __FILE__, 'wpsupercache_deactivate' );

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function wpsupercache_activate() {

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global $cache_path;

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if ( ! isset( $cache_path ) || $cache_path == '' )

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$cache_path = WP_CONTENT_DIR . '/cache/'; // from sample config file

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ob_start();

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wpsc_init();

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if (

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! wp_cache_verify_cache_dir() ||

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! wpsc_check_advanced_cache() ||

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! wp_cache_verify_config_file()

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) {

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$text = ob_get_contents();

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ob_end_clean();

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return false;

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}

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$text = ob_get_contents();

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wp_cache_check_global_config();

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ob_end_clean();

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wp_schedule_single_event( time() + 10, 'wp_cache_add_site_cache_index' );

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}

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register_activation_hook( __FILE__, 'wpsupercache_activate' );

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function wpsupercache_site_admin() {

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global $wp_version;

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if ( version_compare( $wp_version, '4.8', '>=' ) ) {

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return current_user_can( 'setup_network' );

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}

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return is_super_admin();

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}

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function wp_cache_add_pages() {

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if ( wpsupercache_site_admin() ) {

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// In single or MS mode add this menu item too, but only for superadmins in MS mode.

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add_options_page( 'WP Super Cache', 'WP Super Cache', 'manage_options', 'wpsupercache', 'wp_cache_manager' );

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}

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}

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add_action( 'admin_menu', 'wp_cache_add_pages' );

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function wp_cache_network_pages() {

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add_submenu_page( 'settings.php', 'WP Super Cache', 'WP Super Cache', 'manage_options', 'wpsupercache', 'wp_cache_manager' );

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}

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add_action( 'network_admin_menu', 'wp_cache_network_pages' );

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/**

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* Load JavaScript on admin pages.

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function wp_super_cache_admin_enqueue_scripts( $hook ) {

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if ( 'settings_page_wpsupercache' !== $hook ) {

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return;

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}

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wp_enqueue_script(

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'wp-super-cache-admin',

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trailingslashit( plugin_dir_url( __FILE__ ) ) . 'js/admin.js',

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array( 'jquery' ),

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WPSC_VERSION_ID,

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false

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);

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wp_localize_script(

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'wp-super-cache-admin',

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'wpscAdmin',

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array(

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'boostNoticeDismissNonce' => wp_create_nonce( 'wpsc_dismiss_boost_notice' ),

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'boostDismissNonce' => wp_create_nonce( 'wpsc_dismiss_boost_banner' ),

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'boostInstallNonce' => wp_create_nonce( 'updates' ),

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'boostActivateNonce' => wp_create_nonce( 'activate-boost' ),

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)

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);

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}

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add_action( 'admin_enqueue_scripts', 'wp_super_cache_admin_enqueue_scripts' );

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/**

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* Use the standard WordPress plugin installation ajax handler.

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add_action( 'wp_ajax_wpsc_install_plugin', 'wp_ajax_install_plugin' );

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/**

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* Check if Jetpack Boost has been installed.

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function wpsc_is_boost_installed() {

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$plugins = array_keys( get_plugins() );

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foreach ( $plugins as $plugin ) {

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if ( str_contains( $plugin, 'jetpack-boost/jetpack-boost.php' ) ) {

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return true;

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}

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}

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return false;

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}

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/**

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* Check if Jetpack Boost is active.

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function wpsc_is_boost_active() {

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return class_exists( '\Automattic\Jetpack_Boost\Jetpack_Boost' );

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}

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/**

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* Admin ajax action: hide the Boost Banner.

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function wpsc_hide_boost_banner() {

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check_ajax_referer( 'wpsc_dismiss_boost_banner', 'nonce' );

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update_user_option( get_current_user_id(), 'wpsc_dismissed_boost_banner', '1' );

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wp_die();

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}

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add_action( 'wp_ajax_wpsc-hide-boost-banner', 'wpsc_hide_boost_banner' );

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/**

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* Admin ajax action: activate Jetpack Boost.

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function wpsc_ajax_activate_boost() {

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check_ajax_referer( 'activate-boost' );

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if ( ! isset( $_POST['source'] ) ) {

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wp_send_json_error( 'no source specified' );

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}

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$source = sanitize_text_field( wp_unslash( $_POST['source'] ) );

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$result = activate_plugin( 'jetpack-boost/jetpack-boost.php' );

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if ( is_wp_error( $result ) ) {

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wp_send_json_error( $result->get_error_message() );

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}

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wpsc_notify_migration_to_boost( $source );

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wp_send_json_success();

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}

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add_action( 'wp_ajax_wpsc_activate_boost', 'wpsc_ajax_activate_boost' );

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/**

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* Show a Jetpack Boost installation banner (unless dismissed or installed)

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function wpsc_jetpack_boost_install_banner() {

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if ( ! wpsc_is_boost_current() ) {

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return;

[395] Fix | Delete

}

[396] Fix | Delete

// Don't show the banner if Boost is installed, or the banner has been dismissed.

[397] Fix | Delete

$is_dismissed = '1' === get_user_option( 'wpsc_dismissed_boost_banner' );

[398] Fix | Delete

if ( wpsc_is_boost_active() || $is_dismissed ) {

[399] Fix | Delete

return;

[400] Fix | Delete

}

[401] Fix | Delete

[402] Fix | Delete

$config = wpsc_get_boost_migration_config();

[403] Fix | Delete

$button_url = $config['is_installed'] ? $config['activate_url'] : $config['install_url'];

[404] Fix | Delete

$button_label = $config['is_installed'] ? __( 'Set up Jetpack Boost', 'wp-super-cache' ) : __( 'Install Jetpack Boost', 'wp-super-cache' );

[405] Fix | Delete

$button_class = $config['is_installed'] ? 'wpsc-activate-boost-button' : 'wpsc-install-boost-button';

[406] Fix | Delete

$plugin_url = plugin_dir_url( __FILE__ );

[407] Fix | Delete

[408] Fix | Delete

[409] Fix | Delete

[410] Fix | Delete

[411] Fix | Delete

[412] Fix | Delete

<img style="width:282px" src="<?php echo esc_url( $plugin_url . '/assets/jetpack-logo.svg' ); ?>" height="36" />

[413] Fix | Delete

[414] Fix | Delete

<h3>

[415] Fix | Delete

<?php esc_html_e( 'Speed up your site with our top‑rated performance tool', 'wp-super-cache' ); ?>

[416] Fix | Delete

</h3>

[417] Fix | Delete

[418] Fix | Delete

[419] Fix | Delete

<?php

[420] Fix | Delete

esc_html_e(

[421] Fix | Delete

'Caching is a great start, but there is more to maximize your site speed. Find out how much your cache speeds up your site and make it blazing fast with Jetpack Boost, the easiest WordPress speed optimization plugin developed by WP Super Cache engineers.',

[422] Fix | Delete

'wp-super-cache'

[423] Fix | Delete

);

[424] Fix | Delete

[425] Fix | Delete

</p>

[426] Fix | Delete

[427] Fix | Delete

[428] Fix | Delete

[429] Fix | Delete

[430] Fix | Delete

<a style="font-weight: 500; line-height: 1; padding: 10px 20px 15px;" data-source='banner' href="<?php echo esc_url( $button_url ); ?>" class="wpsc-boost-migration-button button button-primary <?php echo esc_attr( $button_class ); ?>">

[431] Fix | Delete

[432] Fix | Delete

[433] Fix | Delete

</a>

[434] Fix | Delete

[435] Fix | Delete

Learn More

[436] Fix | Delete

</a>

[437] Fix | Delete

</div>

[438] Fix | Delete

</div>

[439] Fix | Delete

[440] Fix | Delete

[441] Fix | Delete

<img

[442] Fix | Delete

width="350"

[443] Fix | Delete

height="452"

[444] Fix | Delete

src="<?php echo esc_url( $plugin_url . 'assets/boost-install-card-main.png' ); ?>"

[445] Fix | Delete

title="<?php esc_attr_e( 'Check how your web site performance scores for desktop and mobile.', 'wp-super-cache' ); ?>"

[446] Fix | Delete

alt="<?php esc_attr_e( 'An image showing the Jetpack Boost dashboard.', 'wp-super-cache' ); ?>"

[447] Fix | Delete

srcset="<?php echo esc_url( $plugin_url . 'assets/boost-install-card-main.png' ); ?> 400w, <?php echo esc_url( $plugin_url . 'assets/boost-install-card-main-2x.png' ); ?> 800w"

[448] Fix | Delete

sizes="(max-width: 782px) 350px, 700px"

[449] Fix | Delete

[450] Fix | Delete

</div>

[451] Fix | Delete

</div>

[452] Fix | Delete

[453] Fix | Delete

[454] Fix | Delete

</div>

[455] Fix | Delete

<?php

[456] Fix | Delete

}

[457] Fix | Delete

[458] Fix | Delete

function wp_cache_manager_error_checks() {

[459] Fix | Delete

global $wp_cache_debug, $wp_cache_cron_check, $cache_enabled, $super_cache_enabled, $wp_cache_config_file, $wp_cache_mobile_browsers, $wp_cache_mobile_prefixes, $wp_cache_mobile_browsers, $wp_cache_mobile_enabled, $wp_cache_mod_rewrite;

[460] Fix | Delete

global $dismiss_htaccess_warning, $dismiss_readable_warning, $dismiss_gc_warning, $wp_cache_shutdown_gc, $is_nginx;

[461] Fix | Delete

global $htaccess_path;

[462] Fix | Delete

[463] Fix | Delete

if ( ! wpsupercache_site_admin() ) {

[464] Fix | Delete

return false;

[465] Fix | Delete

}

[466] Fix | Delete

[467] Fix | Delete

if ( PHP_VERSION_ID < 50300 && ( ini_get( 'safe_mode' ) === '1' || strtolower( ini_get( 'safe_mode' ) ) === 'on' ) ) { // @codingStandardsIgnoreLine

[468] Fix | Delete

echo '<div class="notice notice-error"><h4>' . esc_html__( 'Warning! PHP Safe Mode Enabled!', 'wp-super-cache' ) . '</h4>';

[469] Fix | Delete

echo '<p>' . esc_html__( 'You may experience problems running this plugin because SAFE MODE is enabled.', 'wp-super-cache' ) . '<br />';

[470] Fix | Delete

[471] Fix | Delete

if ( ! ini_get( 'safe_mode_gid' ) ) { // @codingStandardsIgnoreLine

[472] Fix | Delete

esc_html_e( 'Your server is set up to check the owner of PHP scripts before allowing them to read and write files.', 'wp-super-cache' );

[473] Fix | Delete

echo '<br />';

[474] Fix | Delete

printf( __( 'You or an administrator may be able to make it work by changing the group owner of the plugin scripts to match that of the web server user. The group owner of the %s/cache/ directory must also be changed. See the <a href="http://php.net/features.safe-mode">safe mode manual page</a> for further details.', 'wp-super-cache' ), esc_attr( WP_CONTENT_DIR ) );

[475] Fix | Delete

} else {

[476] Fix | Delete

_e( 'You or an administrator must disable this. See the <a href="http://php.net/features.safe-mode">safe mode manual page</a> for further details. This cannot be disabled in a .htaccess file unfortunately. It must be done in the php.ini config file.', 'wp-super-cache' );

[477] Fix | Delete

}

[478] Fix | Delete

echo '</p></div>';

[479] Fix | Delete

}

[480] Fix | Delete

[481] Fix | Delete

if ( '' == get_option( 'permalink_structure' ) ) {

[482] Fix | Delete

echo '<div class="notice notice-error"><h4>' . __( 'Permlink Structure Error', 'wp-super-cache' ) . '</h4>';

[483] Fix | Delete

echo "<p>" . __( 'A custom url or permalink structure is required for this plugin to work correctly. Please go to the <a href="options-permalink.php">Permalinks Options Page</a> to configure your permalinks.', 'wp-super-cache' ) . "</p>";

[484] Fix | Delete

echo '</div>';

[485] Fix | Delete

return false;

[486] Fix | Delete

}

[487] Fix | Delete

[488] Fix | Delete

if ( $wp_cache_debug || ! $wp_cache_cron_check ) {

[489] Fix | Delete

if ( defined( 'DISABLE_WP_CRON' ) && constant( 'DISABLE_WP_CRON' ) ) {

[490] Fix | Delete

[491] Fix | Delete

[492] Fix | Delete

[493] Fix | Delete

</div>

[494] Fix | Delete

<?php

[495] Fix | Delete

} elseif ( function_exists( "wp_remote_get" ) == false ) {

[496] Fix | Delete

$hostname = str_replace( 'http://', '', str_replace( 'https://', '', get_option( 'siteurl' ) ) );

[497] Fix | Delete

if( strpos( $hostname, '/' ) )

[498] Fix | Delete

$hostname = substr( $hostname, 0, strpos( $hostname, '/' ) );

[499] Fix | Delete

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