# ezcache/1.2/includes/Admin.php

ezCache, version 1.2. 656 lines.

- Page: https://pluginprobe.com/plugins/ezcache/1.2/code/includes/Admin.php
- Raw: https://pluginprobe.com/plugins/ezcache/1.2/raw/includes/Admin.php
- Modified: 2019-09-02T08:42:58+00:00

Line numbers below start at 1. Link to a line or a range by appending a fragment to the
page URL, for example `https://pluginprobe.com/plugins/ezcache/1.2/code/includes/Admin.php#L10-L20`.

```php
<?php

namespace Upress\EzCache;

use WP_Admin_Bar;
use wpdb;

class Admin {
	/** @var Plugin */
	private $plugin;
	protected static $svg = '<svg viewBox="0 0 480 480" version="1.1" xmlns="http://www.w3.org/2000/svg" xml:space="preserve" xmlns:serif="http://www.serif.com/" fill-rule="evenodd" clip-rule="evenodd" stroke-linejoin="round" stroke-miterlimit="2">
<g id="Camada-1" serif:id="Camada 1" fill-rule="nonzero">
    <path d="M206.088 138.266l-90.584 127.353h115.3l-67.078 160.647 201.096-213.077H254.006l53.292-74.923h-101.21z" fill="#fc0"/>
    <path d="M205.088 138.266l-90.585 127.352h115.3l-67.078 160.647L285.68 239.266H180.327l75.364-101h-50.603z" fill="url(#_Linear1)"/>
  </g>
  <defs>
    <linearGradient id="_Linear1" x1="0" y1="0" x2="1" y2="0" gradientUnits="userSpaceOnUse" gradientTransform="matrix(171.176 0 0 -171.176 114.504 282.266)">
      <stop offset="0" stop-color="#deb203" stop-opacity="1"/>
      <stop offset="1" stop-color="#fc0" stop-opacity="1"/>
    </linearGradient>
  </defs>
</svg> ';

	function __construct( $plugin ) {
		$this->plugin = $plugin;

		add_action( 'admin_init', [ $this, 'start_session' ] );
		add_action( 'admin_init', [ $this, 'register_settings' ] );
		add_action( 'admin_menu', [ $this, 'register_menu' ] );
		add_action( 'admin_enqueue_scripts', [ $this, 'enqueue_scripts' ] );
		add_action( 'plugin_action_links_' . plugin_basename( $this->plugin->plugin_file ), [
			$this,
			'plugin_action_links'
		] );
		add_action( 'admin_notices', [ $this, 'maybe_show_advanced_cache_notice' ] );

		add_action( 'admin_bar_menu', [ $this, 'add_admin_bar_button' ], 999 );
		add_action( 'admin_post_wpb_clear_cache', [ $this, 'admin_clear_cache' ] );
		add_action( 'admin_post_nopriv_wpb_clear_cache', [ $this, 'admin_clear_cache' ] );
		add_action( 'admin_post_wpb_repair_install', [ $this, 'admin_repair_installation' ] );
		add_action( 'delete_attachment', [ $this, 'delete_webp_image' ] );

		add_action( 'init', [ $this, 'register_post_meta' ] );
		add_action( 'add_meta_boxes', [ $this, 'post_cache_metabox' ] );
		add_action( 'save_post', [ $this, 'save_post_cache_metabox' ] );
	}

	/**
     * Delete the webp versions when the image is deleted
     *
	 * @param int $attachment_id
	 */
	function delete_webp_image( $attachment_id ) {
		/** @var wpdb $wpdb */
		global $wpdb;

		$upload_dir = wp_upload_dir()['basedir'];

		$meta            = wp_get_attachment_metadata( $attachment_id );
		$meta['sizes'][] = [ 'file' => $meta['file'] ];

		$hashes = [];
		foreach ( $meta['sizes'] as $size ) {
			$image_path      = trailingslashit( $upload_dir ) . $meta['file'];
			$ext             = pathinfo( $image_path, PATHINFO_EXTENSION );
			$image_webp_path = preg_replace( '/^(.+)\.' . preg_quote( $ext, '/' ) . '$/u', '$1.webp', $image_path );

			$hashes[] = sha1( $image_path );

			if ( file_exists( $image_webp_path ) ) {
				unlink( $image_webp_path );
			}
		}

		$wpdb->query(
			$wpdb->prepare(
				"DELETE FROM `{$wpdb->prefix}ezcache_webp_images` WHERE `uid` IN (" . substr( str_repeat( "%d, ", count( $hashes ) ), 0, - 2 ) . ")",
				$hashes
			)
		);

		$wpdb->query( "OPTIMIZE TABLE `{$wpdb->prefix}ezcache_webp_images`" );
	}

	/**
	 * Register the post meta fields
	 */
	function register_post_meta() {
		register_post_meta( 'post', '_ezcache_do_not_cache_post', [
			'show_in_rest'  => true,
			'single'        => true,
			'type'          => 'bool',
			'auth_callback' => function () {
				return current_user_can( 'edit_posts' );
			}
		] );
	}

	/**
	 * Register the meta box
	 */
	function post_cache_metabox() {
		global $post_type;

		if ( 'attachement' == $post_type ) {
			return;
		}

		add_meta_box(
			'ezcache_metabox',
			__( 'Caching', 'ezcache' ),
			[ $this, 'post_cache_metabox_output' ],
			null,
			'side'
		);
	}

	/**
	 * Render the post meta box
	 *
	 * @param $post
	 */
	function post_cache_metabox_output( $post ) {
		global $post_type_object;

		$value = get_post_meta( $post->ID, '_ezcache_do_not_cache_post', true );
		wp_nonce_field( 'ezcache_metabox', '_eznonce' );
		?>
        <div class="components-panel__row">
            <div class="components-base-control">
                <input type="checkbox"
                       id="ezcache_no_cache"
                       name="ezcache_no_cache"
                       class="components-checkbox-control__input"
					<?php checked( $value ); ?>
                >
                <label class="components-checkbox-control__label" for="ezcache_no_cache">
					<?php echo 'page' == $post_type_object->capability_type ? esc_html__( 'Do not cache this page', 'ezcache' ) : esc_html__( 'Do not cache this post', 'ezcache' ); ?>
                </label>
            </div>
        </div>
		<?php
	}

	/**
	 * Save the meta box settings
	 *
	 * @param $post_id
	 */
	function save_post_cache_metabox( $post_id ) {
		if ( ! isset( $_POST['_eznonce'] ) || ! wp_verify_nonce( $_POST['_eznonce'], 'ezcache_metabox' ) ) {
			return;
		}

		if ( defined( 'DOING_AUTOSAVE' ) && DOING_AUTOSAVE ) {
			return;
		}

		if ( ! current_user_can( 'edit_post', $post_id ) ) {
			return;
		}

		if ( isset( $_POST['ezcache_no_cache'] ) ) {
			update_post_meta( $post_id, '_ezcache_do_not_cache_post', true );
			Cache::instance()->clear_cache_single( $post_id );
		} else {
			delete_post_meta( $post_id, '_ezcache_do_not_cache_post' );
		}
	}

	/**
	 * Add settings link to the plugin action links
	 *
	 * @param array $links
	 *
	 * @return array
	 */
	function plugin_action_links( $links ) {
		$links[] = sprintf(
			'<a href="%s">%s</a>',
			admin_url( 'admin.php?page=ezcache' ),
			__( 'Settings' )
		);

		return $links;
	}

	/**
	 * Add the menu to the admin bar
	 *
	 * @param WP_Admin_Bar $wp_admin_bar
	 */
	function add_admin_bar_button( $wp_admin_bar ) {
		if ( ! current_user_can( 'manage_options' ) ) {
			return;
		}

		$referer = rawurlencode( wp_unslash( remove_query_arg( 'fl_builder', $_SERVER['REQUEST_URI'] ) ) );
		$svg     = preg_replace( '/<svg(\s+?)(?:(?:style=[\'"]([\s\S]+?);?[\'"]([\s\S]*?))|([\s\S]*?))>/i', '<svg class="ab-icon" style="height:1em;width:auto;color:#a0a5aa;color:rgba(240,245,250,.6);$2" $3$4>', self::$svg );

		$wp_admin_bar->add_menu( [
			'id'    => 'ezcache',
			'title' => $svg . __( 'ezCache', 'ezcache' ),
			'href'  => admin_url( 'admin.php?page=ezcache' ),
		] );

		$wp_admin_bar->add_menu( [
			'id'     => 'ezcache-settings',
			'parent' => 'ezcache',
			'title'  => __( 'Settings', 'ezcache' ),
			'href'   => admin_url( 'admin.php?page=ezcache' ),
		] );

		$wp_admin_bar->add_menu( [
			'id'     => 'ezcache-clear-cache',
			'parent' => 'ezcache',
			'title'  => __( 'Clear Cache', 'ezcache' ),
			'href'   => wp_nonce_url( admin_url( 'admin-post.php?action=wpb_clear_cache&_wp_http_referer=' . $referer ), 'wpb-clear-cache' ),
		] );
	}

	/**
	 * Make sure we have a session
	 */
	function start_session() {
		if ( session_status() == PHP_SESSION_NONE ) {
			session_start();
		}
	}

	/**
	 * Register settings for the plugin
	 */
	function register_settings() {
		register_setting( $this->plugin->plugin_settings_key . '_group', $this->plugin->plugin_settings_key );
	}

	/**
	 * Add the menu under the 'Settings' sidebar item
	 */
	function register_menu() {
		global $submenu;

		add_menu_page(
			__( 'ezCache' ),
			__( 'ezCache' ),
			'manage_options',
			'ezcache',
			[ $this, 'settings_page' ],
			'data:image/svg+xml;base64,' . base64_encode( self::$svg )
		);

		$urls = [
			__( 'Statistics', 'ezcache' )        => '/',
			__( 'Settings', 'ezcache' )          => '/settings',
			__( 'Advanced Settings', 'ezcache' ) => '/advanced',
			__( 'License', 'ezcache' )           => '/license',
		];

		if ( ! isset( $submenu['ezcache'] ) ) {
			$submenu['ezcache'] = [];
		}

		foreach ( $urls as $title => $url ) {
			$submenu['ezcache'][] = [ $title, 'manage_options', admin_url( 'admin.php?page=ezcache' ) . '#' . $url ];
		}
	}

	/**
	 * Render the settings page
	 */
	function settings_page() {
		$trans = $this->getJstraslations();
		?>
        <div class="wrap"><h1 aria-hidden="true"><!-- WordPress notices trap --></h1></div>
        <div id="ezcache-options" class="wrap ezcache-options">
            <!--suppress HtmlUnknownTag -->
            <ezc-options>
                <div class="ezcache-options--preload" aria-hidden="true">
                    <header class="ezcache-header">
                        <h1>
                            <svg viewBox="0 0 360 68" version="1.1" xmlns="http://www.w3.org/2000/svg"
                                 xml:space="preserve" fill-rule="evenodd"
                                 clip-rule="evenodd" stroke-linejoin="round" stroke-miterlimit="2" class="logo">
                                <g id="Camada-1" fill-rule="nonzero">
                                    <path d="M51.154 53.752H13.691V37.239h22.056l9.144-12.855h-31.2V13.378H52.72L62.235 0H0v67.338h45.91l5.244-13.586z"
                                          fill="#1e1e1e"></path>
                                    <path d="M72.596 24.521h21.219L53.38 67.338h58.228V54.797H80.976l39.09-41.42H80.389l-7.794 11.144z"
                                          fill="#1e1e1e"></path>
                                    <path d="M57.073 13.378L40.101 37.239h21.603l-12.568 30.1 37.678-39.923H66.051l9.985-14.038H57.073z"
                                          fill="#fc0"></path>
                                    <path d="M57.074 13.378L40.102 37.239h21.602L49.136 67.338l23.038-35.036H52.435l14.12-18.924h-9.481z"
                                          fill="url(#_Linear1)"></path>
                                    <path d="M200.202 47.707h-19.221l9.611-22.993 9.61 22.993zm8.279 19.631h10.645l-23.212-53.965h-10.645l-23.213 53.965h10.572l4.435-10.163h27.056l4.362 10.163z"
                                          fill="gray"></path>
                                    <path d="M313.541 67.338V13.373h-9.684V36.29h-25.43V13.373h-9.758v53.965h9.758v-22.03h25.43v22.03h9.684z"
                                          fill="gray"></path>
                                    <path d="M360 57.728h-29.053V44.865h16.255l3.911-9.092h-20.166V22.835h24.983l4.07-9.461h-38.736v53.964H360v-9.61z"
                                          fill="gray"></path>
                                    <path d="M143.812 13.373h15.746v9.314h-15.746c-12.493 0-17.89 9.315-17.815 17.964.073 8.575 5.026 17.52 17.815 17.52h15.659l-3.943 9.167H143.812c-19.22 0-27.352-13.233-27.426-26.687-.073-13.528 8.723-27.278 27.426-27.278z"
                                          fill="gray"></path>
                                    <path d="M245.201 13.373h15.746v9.314H245.201c-12.493 0-17.89 9.315-17.816 17.964.074 8.575 5.027 17.52 17.816 17.52h15.746v9.167H245.201c-19.221 0-27.352-13.233-27.426-26.687-.074-13.528 8.723-27.278 27.426-27.278"
                                          fill="gray"></path>
                                </g>
                                <defs>
                                    <linearGradient id="_Linear1" x1="0" y1="0" x2="1" y2="0"
                                                    gradientUnits="userSpaceOnUse"
                                                    gradientTransform="matrix(32.072 0 0 -32.072 40.101 40.358)">
                                        <stop offset="0" stop-color="#deb203" stop-opacity="1"></stop>
                                        <stop offset="1" stop-color="#fc0" stop-opacity="1"></stop>
                                    </linearGradient>
                                </defs>
                            </svg>
                        </h1>
                    </header>
                    <div class="row">
                        <div class="col-12 order-first col-sm-4 col-md-3 col-xl-2">
                            <nav class="ezcache-nav">
                                <a href="#" class="nav-item">
									<?php echo str_repeat( '■', mb_strlen( $trans['stats'] ) ); ?>
                                </a>
                                <a href="#" class="nav-item">
									<?php echo str_repeat( '■', mb_strlen( $trans['settings'] ) ); ?>
                                </a>
                                <a href="#" class="nav-item">
									<?php echo str_repeat( '■', mb_strlen( $trans['advanced_settings'] ) ); ?>
                                </a>
                                <a href="#" class="nav-item">
									<?php echo str_repeat( '■', mb_strlen( $trans['license'] ) ); ?>
                                </a>
                            </nav>
                        </div>
                        <div class="col-12 col-sm-4 order-sm-last col-md-3 col-xl-2 mb-4">
                            <div class="ezcache-nav mt-1">
                                <button type="button" class="wpb-button" disabled>
                                    <svg viewBox="0 0 24 24">
                                        <path d="M19,8L15,12H18A6,6 0 0,1 12,18C11,18 10.03,17.75 9.2,17.3L7.74,18.76C8.97,19.54 10.43,20 12,20A8,8 0 0,0 20,12H23M6,12A6,6 0 0,1 12,6C13,6 13.97,6.25 14.8,6.7L16.26,5.24C15.03,4.46 13.57,4 12,4A8,8 0 0,0 4,12H1L5,16L9,12"></path>
                                    </svg>
									<?php echo str_repeat( '■', mb_strlen( $trans['clear_cache'] ) ); ?>
                                </button>
                                <a href="#" target="_blank" class="mt-2 wpb-button wpb-button-outlined disabled">
                                    <svg viewBox="0 0 24 24">
                                        <path d="M12,16A3,3 0 0,1 9,13C9,11.88 9.61,10.9 10.5,10.39L20.21,4.77L14.68,14.35C14.18,15.33 13.17,16 12,16M12,3C13.81,3 15.5,3.5 16.97,4.32L14.87,5.53C14,5.19 13,5 12,5A8,8 0 0,0 4,13C4,15.21 4.89,17.21 6.34,18.65H6.35C6.74,19.04 6.74,19.67 6.35,20.06C5.96,20.45 5.32,20.45 4.93,20.07V20.07C3.12,18.26 2,15.76 2,13A10,10 0 0,1 12,3M22,13C22,15.76 20.88,18.26 19.07,20.07V20.07C18.68,20.45 18.05,20.45 17.66,20.06C17.27,19.67 17.27,19.04 17.66,18.65V18.65C19.11,17.2 20,15.21 20,13C20,12 19.81,11 19.46,10.1L20.67,8C21.5,9.5 22,11.18 22,13Z"></path>
                                    </svg>
									<?php echo str_repeat( '■', mb_strlen( $trans['run_speed_test'] ) ); ?>
                                </a>
                            </div>
                            <div class="side-links">
                                <a href="#" target="_blank" class="side-links-item disabled">
									<?php echo str_repeat( '■', mb_strlen( $trans['documentation'] ) ); ?>
                                </a>
                                <a href="#" target="_blank" class="side-links-item disabled">
									<?php echo str_repeat( '■', mb_strlen( $trans['knowledgebase'] ) ); ?>
                                </a>
                            </div>
                        </div>
                        <div class="col-12 col-sm-4 order-sm-first col-md-6 col-xl-8">
                            <section class="ezcache-main">
                                <div>
                                    <header class="ezcache-screen-header">
                                        <svg viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg">
                                        </svg>
										<?php echo str_repeat( '■', mb_strlen( $trans['stats'] ) ); ?>
                                    </header>
                                    <div class="row">
                                    </div>
                                </div>
                            </section>
                        </div>
                    </div>
                </div>
                <noscript>
                    <p class="text-center">
                        <strong><?php esc_html_e( 'This application requires JavaScript to run', 'ezcache' ); ?></strong>
                    </p>
                </noscript>
            </ezc-options>
        </div>
		<?php
	}

	/**
	 * Queue up the options page scripts
	 */
	public function enqueue_scripts() {
		$screen = get_current_screen();

		if ( 'toplevel_page_ezcache' != $screen->id ) {
			return;
		}

		$ver = defined( 'WP_DEBUG' ) && WP_DEBUG ? time() : $this->plugin->plugin_version;

		wp_enqueue_script( 'ezcache-options', $this->plugin->plugin_url . '/assets/dist/js/options.js', [], $ver, true );
		wp_enqueue_style( 'ezcache-options', $this->plugin->plugin_url . '/assets/dist/css/options.css', [], $ver );

		wp_localize_script( 'ezcache-options', 'ezcache', [
			'assets_url' => esc_url_raw( EZCACHE_URL . '/assets' ),
			'ajax_url'   => esc_url_raw( admin_url( 'admin-ajax.php' ) ),
			'rest_url'   => esc_url_raw( rest_url() ),
			'ajax_nonce' => wp_create_nonce( 'ezcache-options' ),
			'rest_nonce' => wp_create_nonce( 'wp_rest' ),
			'is_rtl'     => is_rtl(),
			'site_url'   => esc_url_raw( untrailingslashit( site_url() ) ),
			'trans'      => $this->getJstraslations(),
			'is_https_2' => $this->check_https_2_support(),
		] );
	}

	/**
	 * Check if current website supports HTTPS/2
	 *
	 * @return bool
	 */
	protected function check_https_2_support() {
		if ( ! is_ssl() ) {
			return false;
		}

		$supports = get_transient( 'ezcache_https_2_support' );

		if ( ! $supports ) {
			$response = wp_safe_remote_head( home_url(), [
				'httpversion' => '2.0'
			] );
			$response = $response['http_response']->get_response_object();
			$supports = $response->protocol_version == 2;

			set_transient( 'ezcache_https_2_support', [ 'has_support' => $supports ], DAY_IN_SECONDS );
		}

		return isset( $supports['has_support'] ) ? $supports['has_support'] : false;
	}

	/**
	 * Get the trnaslations required for the javascript frontend
	 *
	 * @return array
	 */
	protected function getJstraslations() {
		return [
			'ezcache'                              => __( 'ezCache', 'ezcache' ),
			'enabled'                              => __( 'Enabled', 'ezcache' ),
			'disabled'                             => __( 'Disabled', 'ezcache' ),
			'run_speed_test'                       => __( 'Run a Speed Test', 'ezcache' ),
			'save_settings'                        => __( 'Save Settings', 'ezcache' ),
			'settings_saved'                       => __( 'Settings updated.', 'ezcache' ),
			'error_saving_settings'                => __( 'Could not save settings.', 'ezcache' ),
			'clear_cache'                          => __( 'Clear Cache', 'ezcache' ),
			'cache_cleared'                        => __( 'Cache has been cleared.', 'ezcache' ),
			'settings'                             => __( 'Settings', 'ezcache' ),
			'advanced_settings'                    => __( 'Advanced Settings', 'ezcache' ),
			'stats'                                => __( 'Statistics', 'ezcache' ),
			'license'                              => __( 'License', 'ezcache' ),
			'recommended'                          => __( 'Recommended', 'ezcache' ),
			'basic_settings'                       => __( 'Basic Settings', 'ezcache' ),
			'no_cache_known_users'                 => __( 'Don\'t cache pages for known users', 'ezcache' ),
			'no_cache_known_users_description'     => __( 'This disables cache for logged in users or visitors who left comments on posts.', 'ezcache' ),
			'cache_expiry'                         => __( 'Cache Expiry', 'ezcache' ),
			'cache_lifetime'                       => __( 'Cache Timeout', 'ezcache' ),
			'cache_lifetime_description'           => __( 'How long to keep the cached data, the recommended and effective starting point is one day.', 'ezcache' ),
			'cache_expiry_interval'                => __( 'Check for stale cache every', 'ezcache' ),
			'cache_expiry_interval_description'    => __( 'Automatically check for stale cache files and delete them at a set interval.', 'ezcache' ),
			'interval'                             => __( 'Interval', 'ezcache' ),
			'every'                                => __( 'Every', 'ezcache' ),
			'seconds'                              => __( 'Seconds', 'ezcache' ),
			'cache_schedule_type_time'             => __( 'At Time', 'ezcache' ),
			'cache_schedule_interval'              => __( 'Interval', 'ezcache' ),
			'weekly'                               => __( 'Weekly', 'ezcache' ),
			'daily'                                => __( 'Daily', 'ezcache' ),
			'twicedaily'                           => __( 'Twice Daily', 'ezcache' ),
			'hourly'                               => __( 'Hourly', 'ezcache' ),
			'at'                                   => __( 'At', 'ezcache' ),
			'cache_bypass'                         => __( 'Cache Bypass', 'ezcache' ),
			'no_cache_query_params'                => __( 'Don\'t cache pages where the URLs contain parameters in the query string', 'ezcache' ),
			'no_cache_query_params_description'    => __( 'Don\'t save cache when the URL contains query string parameters, such as ?page_id=15 at the end of the URL.', 'ezcache' ),
			'separate_mobile_cache'                => __( 'Separate cache for mobile devices', 'ezcache' ),
			'separate_mobile_cache_description'    => __( 'Save separate cache files for mobile browsers and a separate file for desktop browsers, you should only enable this option if your theme is not responsive and you use a theme or a plugin that produces a separate mobile version of the website.', 'ezcache' ),
			'cache_clear_on_post_edit'             => __( 'Clear cache when a post or page is published or updated', 'ezcache' ),
			'cache_clear_on_post_edit_description' => __( 'Make sure your visitors read the latest posts by clearing the cache when you update or publish a post.', 'ezcache' ),
			'bypass_cache_title'                   => __( 'Disable caching for the following pages', 'ezcache' ),
			'bypass_cache_single'                  => __( 'Single Posts', 'ezcache' ),
			'bypass_cache_pages'                   => __( 'Pages', 'ezcache' ),
			'bypass_cache_frontpage'               => __( 'Front Page', 'ezcache' ),
			'bypass_cache_home'                    => __( 'Home', 'ezcache' ),
			'bypass_cache_archives'                => __( 'Archives', 'ezcache' ),
			'bypass_cache_tag'                     => __( 'Tags', 'ezcache' ),
			'bypass_cache_category'                => __( 'Categories', 'ezcache' ),
			'bypass_cache_feed'                    => __( 'Feeds', 'ezcache' ),
			'bypass_cache_search'                  => __( 'Search Results', 'ezcache' ),
			'bypass_cache_author'                  => __( 'Author Pages', 'ezcache' ),
			'rejected_uri'                         => __( 'Links (URLs) which will never get cached', 'ezcache' ),
			'rejected_uri_description'             => __( 'Do not serve cached content if the URL matches any link in the following list', 'ezcache' ),
			'rejected_uri_wildcard'                => __( 'The domain part of the URL will be stripped automatically. Use * wildcard character to match multiple characters at this position (eg. /product/*).', 'ezcache' ),
			'rejected_user_agent'                  => __( 'User Agents which will never receive cached data', 'ezcache' ),
			'rejected_user_agent_description'      => __( 'Do not serve cached content to the following useragents', 'ezcache' ),
			'n_minutes'                            => __( '%s Minutes', 'ezcache' ),
			'n_hours'                              => __( '%s Hours', 'ezcache' ),
			'n_days'                               => __( '%s Days', 'ezcache' ),
			'never_expire'                         => __( 'Never Expire', 'ezcache' ),
			'cache_disabled'                       => __( 'WP_CACHE is disabled in your wp-config.php, caching will not work.', 'ezcache' ),
			'adv_cache_not_exists'                 => __( 'advanced-cache.php is missing from your wp-content folder, caching will not work.', 'ezcache' ),
			'plugin_badly_installed'               => __( 'Plugin is not installed properly, please reinstall, caching will not work.', 'ezcache' ),
			'desktop'                              => _x( 'Desktop', 'statistics block title', 'ezcache' ),
			'mobile'                               => _x( 'Mobile', 'statistics block title', 'ezcache' ),
			'expired'                              => _x( 'Expire Cache', 'statistics block title', 'ezcache' ),
			'javascript'                           => _x( 'JavaScript Files', 'statistics block title', 'ezcache' ),
			'css'                                  => _x( 'CSS Files', 'statistics block title', 'ezcache' ),
			'webp_images'                          => _x( 'WebP Images', 'statistics block title', 'ezcache' ),
			'cache_usage'                          => __( 'ezCache Cache Usage', 'ezcache' ),
			'webp_stats_description'               => __( 'Images optimized with WebP.', 'ezcache' ),
			'cache_bypass_settings'                => _x( 'Cache Bypass', 'settings block title', 'ezcache' ),
			'cache_settings'                       => _x( 'Caching', 'settings block title', 'ezcache' ),
			'file_optimizations_settings'          => _x( 'File Optimizations', 'settings block title', 'ezcache' ),
			'cache_expiry_settings'                => _x( 'Cache Expiration', 'settings block title', 'ezcache' ),
			'optimize_google_fonts'                => __( 'Optimize Google fonts', 'ezcache' ),
			'optimize_google_fonts_description'    => __( 'Combine multiple Google Fonts declerations into one.', 'ezcache' ),
			'minify_html'                          => __( 'Minify HTML', 'ezcache' ),
			'minify_html_description'              => __( 'Minify the cached HTML to make cached files smaller.', 'ezcache' ),
			'minify_inline_js'                     => __( 'Minify Inline JavaScript', 'ezcache' ),
			'minify_inline_js_description'         => __( 'Include JavaScript embedded in the HTML in the minification process.', 'ezcache' ),
			'minify_inline_css'                    => __( 'Minify Inline CSS', 'ezcache' ),
			'minify_inline_css_description'        => __( 'Include CSS embedded in the HTML in the minification process.', 'ezcache' ),
			'minify_js'                            => __( 'Minify JavaScript', 'ezcache' ),
			'minify_js_description'                => __( 'Minify JavaScript files to reduce their size.', 'ezcache' ),
			'combine_head_js'                      => __( 'Combine JavaScript in Head', 'ezcache' ),
			'combine_head_js_description'          => __( 'Combine multiple JavaScript files found in the head section of the HTML into one file.', 'ezcache' ),
			'combine_body_js'                      => __( 'Combine JavaScript in Body', 'ezcache' ),
			'combine_body_js_description'          => __( 'Combine multiple JavaScript files found in the body section of the HTML into one file.', 'ezcache' ),
			'minify_css'                           => __( 'Minify CSS', 'ezcache' ),
			'minify_css_description'               => __( 'Minify CSS files to reduce their size.', 'ezcache' ),
			'combine_css'                          => __( 'Combine CSS', 'ezcache' ),
			'combine_css_description'              => __( 'Combine multiple CSS files into one to reduce HTTP requests.', 'ezcache' ),
			'not_recommended_https2'               => __( 'Your server supports HTTP/2 which benefits from having this option kept disabled', 'ezcache' ),
			'enable_webp_support'                  => __( 'Optimize Images With WebP', 'ezcache' ),
			'enable_webp_support_description'      => __( 'WebP is a modern image format that provides superior lossless and lossy compression for images on the web. WebP lossless images are 26% smaller in size compared to PNGs, and 25-34% smaller than comparable JPEG images.', 'ezcache' ),
			'requries_premium_license'             => __( 'Requires a premium license', 'ezcache' ),

			'documentation'  => __( 'Documentation', 'ezcache' ),
			'knowledgebase'  => __( 'Knowledgebase', 'ezcache' ),
			'upress_ad'      => __( 'uPress Premium WordPress Hosting', 'ezcache' ),
			'upress_domain'  => __( 'www.upress.io', 'ezcache' ),
			'upress_ad_link' => __( 'https://www.upress.io/?utm_source=wordpress&utm_medium=cpc&utm_campaign=ezcache', 'ezcache' ),
			'speed_test_url' => __( 'https://speedom.net/?url=%s&location=US-NY&utm_source=wordpress&utm_medium=cpc&utm_campaign=ezcache', 'ezcache' ),

			'rejected_user_agent_placeholder' => _x( 'Googlebot', 'user agent example', 'ezcache' ),
			'rejected_uri_placeholder'        => _x( '/products/*', 'rejected uri example', 'ezcache' ),

			'css_stats_description'        => __( 'Optimized and cached CSS files.', 'ezcache' ),
			'javascript_stats_description' => __( 'Optimized and cached JavaScript files.', 'ezcache' ),
			'expired_stats_description'    => __( 'Cache data that has expired and waiting to be cleaned up.', 'ezcache' ),
			'mobile_stats_description'     => __( 'Cache data for pages viewed from mobile devices.', 'ezcache' ),
			'desktop_stats_description'    => __( 'Cache data for pages viewed from desktop computers.', 'ezcache' ),

			'license_key'             => __( 'License Key', 'ezcache' ),
			'license_key_description' => __( 'ezCache pro license will allow you to use the WebP image optimization without limits.', 'ezcache' ),
			'deactivate_license'      => __( 'Deactivate License', 'ezcache' ),
			'activate_license'        => __( 'Activate License', 'ezcache' ),
			'license_valid'           => __( 'License is valid', 'ezcache' ),
			'license_invalid'         => __( 'License is invalid', 'ezcache' ),
			'license_expires_at'      => __( 'License expires at %s', 'ezcache' ),
			'unknown'                 => __( 'Unknown', 'ezcache' ),

			'license_status'                => __( 'Status', 'ezcache' ),
			'license_details'               => __( 'License Details', 'ezcache' ),
			'license_type'                  => __( 'License Type', 'ezcache' ),
			'trial_license'                 => _x( 'Trial', 'license type', 'ezcache' ),
			'regular_license'               => _x( 'Pro', 'license type', 'ezcache' ),
			'expires_in'                    => __( 'Expires In', 'ezcache' ),
			'expires_at'                    => __( 'Expires At', 'ezcache' ),
			'uses_left'                     => __( 'Convertions Left', 'ezcache' ),
			'trial_not_started'             => __( '%s days after first usage', 'ezcache' ),
			'purchase_license'              => __( 'Get a Pro License', 'ezcache' ),
			'license_expired'               => __( 'Expired', 'ezcache' ),
			'no_expiry_while_upress_client' => __( 'Will not expire while hosted on uPress', 'ezcache' ),
		];
	}

	/**
	 * Show cache status admin notices when needed
	 */
	function maybe_show_advanced_cache_notice() {
		$webp_queue = get_site_option( 'ezcache_convert_images_to_webp_reprocess_queue' );
		if ( ! $webp_queue ) {
			$webp_queue = [];
		}
		$count_pending = array_reduce( $webp_queue, function ( $count, $images ) {
			return $count + count( $images );
		}, 0 );

		if ( $count_pending > 0 ) {
			echo '<div class="notice notice-info"><p><strong>' . esc_html__( 'ezCache', 'ezcache' ) . ':</strong> ' . sprintf( esc_html__( 'WebP Processing is currently running, %d images remaining.', 'ezcache' ), $count_pending ) . '</p></div>';
		}

		if ( isset( $_SESSION['EZCACHE_REPAIRED'] ) ) {
			unset( $_SESSION['EZCACHE_REPAIRED'] );
			echo '<div class="notice notice-success is-dismissible"><p>' . esc_html__( 'ezCache installation repaired.', 'ezcache' ) . '</p></div>';

			return;
		}

		$status = $this->plugin->ezcache->get_status();

		$messages = [];
		if ( ! $status['cache_enabled'] ) {
			$messages[] = __( 'WP_CACHE is disabled in your wp-config.php', 'ezcache' );
		}
		if ( ! $status['adv_cache_exists'] ) {
			$messages[] = __( 'advanced-cache.php is missing from your wp-content folder', 'ezcache' );
		}
		if ( $status['adv_cache_exists'] && ! $status['correct_cache_exists'] ) {
			$messages[] = __( 'Invalid advanced-cache.php file detected', 'ezcache' );
		}

		if ( ! count( $messages ) ) {
			return;
		}

		$referer = rawurlencode( wp_unslash( remove_query_arg( 'fl_builder', $_SERVER['REQUEST_URI'] ) ) );

		echo '<div class="notice notice-error"><p>';
		esc_html_e( 'ezCache detected the following configuration problems:', 'ezcache' );
		echo '<br>';
		echo implode( ', ', $messages );
		echo '<br>';
		echo '<a class="button button-sm button-secondary" href="' . wp_nonce_url( admin_url( 'admin-post.php?action=wpb_repair_install&_wp_http_referer=' . $referer ), 'wpb-repair-install' ) . '">' . esc_html__( 'Repair ezCache Installation', 'ezcache' ) . '</a>';
		echo '</p></div>';
	}

	function admin_clear_cache() {
		if ( ! isset( $_GET['_wpnonce'] ) || ! wp_verify_nonce( $_GET['_wpnonce'], 'wpb-clear-cache' ) ) {
			wp_nonce_ays( 'wpb-clear-cache' );
		}

		$this->plugin->ezcache->clear_cache();

		wp_redirect( wp_get_referer() );
		exit;
	}

	/**
	 * Repaire the plugin installation when POST variable is set
	 */
	function admin_repair_installation() {
		if ( ! isset( $_GET['_wpnonce'] ) || ! wp_verify_nonce( $_GET['_wpnonce'], 'wpb-repair-install' ) ) {
			wp_nonce_ays( 'wpb-repair-install' );
		}

		$this->plugin->activation_hook();

		$_SESSION['EZCACHE_REPAIRED'] = true;
		wp_redirect( wp_get_referer() );
		exit;
	}
}

```