add wp-rocket

wp-content/plugins/wp-rocket/inc/ThirdParty/Hostings/AbstractNoCacheHost.php

@@ -0,0 +1,63 @@
+<?php
+
+namespace WP_Rocket\ThirdParty\Hostings;
+
+use WP_Rocket\Engine\Activation\ActivationInterface;
+use WP_Rocket\Engine\Deactivation\DeactivationInterface;
+use WP_Rocket\Event_Management\Event_Manager;
+use WP_Rocket\Event_Management\Event_Manager_Aware_Subscriber_Interface;
+use WP_Rocket\ThirdParty\ReturnTypesTrait;
+
+abstract class AbstractNoCacheHost implements ActivationInterface, DeactivationInterface, Event_Manager_Aware_Subscriber_Interface {
+	use ReturnTypesTrait;
+
+	/**
+	 * Event Manager instance
+	 *
+	 * @var Event_Manager
+	 */
+	protected $event_manager;
+
+	/**
+	 * Actions to perform on plugin activation
+	 *
+	 * @since 3.6.3
+	 *
+	 * @return void
+	 */
+	public function activate() {
+		add_action( 'rocket_activation', [ $this, 'no_cache_config' ] );
+	}
+
+	/**
+	 * Actions to perform on plugin deactivation
+	 *
+	 * @since 3.6.3
+	 *
+	 * @return void
+	 */
+	public function deactivate() {
+		add_action( 'rocket_deactivation', [ $this, 'no_cache_config' ] );
+	}
+
+	/**
+	 * Prevent writing in advanced-cache.php & wp-config.php when on self-caching host.
+	 *
+	 * @since 3.6.3
+	 *
+	 * @return void
+	 */
+	public function no_cache_config() {
+		add_filter( 'rocket_set_wp_cache_constant', [ $this, 'return_false' ] );
+		add_filter( 'rocket_generate_advanced_cache_file', [ $this, 'return_false' ] );
+	}
+
+	/**
+	 * Sets the event manager for the subscriber.
+	 *
+	 * @param Event_Manager $event_manager Event Manager instance.
+	 */
+	public function set_event_manager( Event_Manager $event_manager ) {
+		$this->event_manager = $event_manager;
+	}
+}

wp-content/plugins/wp-rocket/inc/ThirdParty/Hostings/Cloudways.php

@@ -0,0 +1,117 @@
+<?php
+
+namespace WP_Rocket\ThirdParty\Hostings;
+
+use WP_Rocket\Event_Management\Subscriber_Interface;
+use WP_Rocket\ThirdParty\NullSubscriber;
+
+/**
+ * Compatibility class for Cloudways Varnish
+ *
+ * @since 3.5.5
+ */
+class Cloudways extends NullSubscriber implements Subscriber_Interface {
+
+	/**
+	 * Array of events this subscriber wants to listen to.
+	 *
+	 * @since 3.5.5
+	 *
+	 * @return array
+	 */
+	public static function get_subscribed_events() {
+		return [
+			'rocket_display_input_varnish_auto_purge' => 'return_false',
+			'do_rocket_varnish_http_purge'            => 'should_purge',
+			'rocket_varnish_field_settings'           => 'varnish_addon_title',
+			'rocket_varnish_ip'                       => 'varnish_ip',
+		];
+	}
+
+	/**
+	 * Determine if the Varnish server is up and running.
+	 *
+	 * @since 3.6.1
+	 */
+	private static function is_varnish_running() {
+		if ( ! isset( $_SERVER['HTTP_X_VARNISH'] ) ) {
+			return false;
+		}
+
+		if ( ! isset( $_SERVER['HTTP_X_APPLICATION'] ) ) {
+			return false;
+		}
+
+		return ( 'varnishpass' !== trim( strtolower( $_SERVER['HTTP_X_APPLICATION'] ) ) ); // phpcs:ignore WordPress.Security.ValidatedSanitizedInput.InputNotSanitized, WordPress.Security.ValidatedSanitizedInput.MissingUnslash
+	}
+
+	/**
+	 * Returns false
+	 *
+	 * @since 3.5.5
+	 *
+	 * @return bool
+	 */
+	public function return_false() {
+		return false;
+	}
+
+	/**
+	 * Returns should purge Varnish.
+	 *
+	 * @since 3.5.5
+	 *
+	 * @return true
+	 */
+	public function should_purge() {
+		return self::is_varnish_running();
+	}
+
+	/**
+	 * Displays custom title for the Varnish add-on
+	 *
+	 * @since 3.5.5
+	 *
+	 * @param array $settings Array of settings for Varnish.
+	 * @return array
+	 */
+	public function varnish_addon_title( array $settings ) {
+		if ( ! self::is_varnish_running() ) {
+			$settings['varnish_auto_purge']['title'] = sprintf(
+				// Translators: %s = Hosting name.
+				__( 'Varnish auto-purge will be automatically enabled once Varnish is enabled on your %s server.', 'rocket' ),
+				'Cloudways'
+			);
+
+			return $settings;
+		}
+		$settings['varnish_auto_purge']['title'] = sprintf(
+			// Translators: %s = Hosting name.
+			__( 'Your site is hosted on %s, we have enabled Varnish auto-purge for compatibility.', 'rocket' ),
+			'Cloudways'
+		);
+
+		return $settings;
+	}
+
+	/**
+	 * Adds Cloudways Varnish IP to varnish IPs array
+	 *
+	 * @since 3.5.5
+	 *
+	 * @param array $varnish_ip Varnish IP.
+	 * @return array
+	 */
+	public function varnish_ip( $varnish_ip ) {
+		if ( ! self::is_varnish_running() ) {
+			return $varnish_ip;
+		}
+		if ( ! is_array( $varnish_ip ) ) {
+			$varnish_ip = (array) $varnish_ip;
+		}
+
+		$varnish_ip[] = '127.0.0.1:8080';
+
+		return $varnish_ip;
+	}
+}

wp-content/plugins/wp-rocket/inc/ThirdParty/Hostings/Dreampress.php

@@ -0,0 +1,112 @@
+<?php
+
+namespace WP_Rocket\ThirdParty\Hostings;
+
+/**
+ * Compatibility class for DreamPress
+ *
+ * @since 3.7.2
+ */
+class Dreampress extends AbstractNoCacheHost {
+	/**
+	 * Array of events this subscriber wants to listen to.
+	 *
+	 * @since 3.7.2
+	 *
+	 * @return array
+	 */
+	public static function get_subscribed_events() {
+		return [
+			'do_rocket_varnish_http_purge'            => 'return_true',
+			'rocket_varnish_field_settings'           => 'set_varnish_addon_title',
+			'rocket_display_input_varnish_auto_purge' => 'return_false',
+			'rocket_varnish_ip'                       => 'set_varnish_host',
+			'rocket_set_wp_cache_constant'            => 'return_false',
+			'do_rocket_generate_caching_files'        => 'return_false',
+			'rocket_generate_advanced_cache_file'     => 'return_false',
+			'rocket_cache_mandatory_cookies'          => [ 'return_empty_array', PHP_INT_MAX ],
+			'rocket_htaccess_mod_expires'             => [ 'remove_htaccess_html_expire', 5 ],
+		];
+	}
+
+	/**
+	 * Changes the text on the Varnish one-click block.
+	 *
+	 * @since 3.7.2
+	 *
+	 * @param array $settings Field settings data.
+	 *
+	 * @return array modified field settings data.
+	 */
+	public function set_varnish_addon_title( $settings ) {
+		$settings['varnish_auto_purge']['title'] = sprintf(
+		// Translators: %s = Hosting name.
+			__( 'Your site is hosted on %s, we have enabled Varnish auto-purge for compatibility.', 'rocket' ),
+			'DreamPress'
+		);
+
+		return $settings;
+	}
+
+	/**
+	 * Sets the Varnish host to localhost
+	 *
+	 * @since 3.7.2
+	 *
+	 * @param mixed $hosts Varnish hosts.
+	 * @return array
+	 */
+	public function set_varnish_host( $hosts ) {
+		if ( ! is_array( $hosts ) ) {
+			$hosts = (array) $hosts;
+		}
+
+		if ( in_array( 'localhost', $hosts, true ) ) {
+			return $hosts;
+		}
+
+		$hosts[] = 'localhost';
+
+		return $hosts;
+	}
+
+	/**
+	 * Remove expiration on HTML to prevent issue with Varnish cache.
+	 *
+	 * @since 3.7.2
+	 *
+	 * @param  string $rules htaccess rules.
+	 *
+	 * @return string        Updated htaccess rules.
+	 */
+	public function remove_htaccess_html_expire( $rules ) {
+		$rules = preg_replace( '@\s*#\s*Your document html@', '', $rules );
+		$rules = preg_replace( '@\s*ExpiresByType text/html\s*"access plus \d+ (seconds|minutes|hour|week|month|year)"@', '', $rules );
+
+		return $rules;
+	}
+
+	/**
+	 * Performs these actions during the plugin activation
+	 *
+	 * @since 3.7.2
+	 *
+	 * @return void
+	 */
+	public function activate() {
+		parent::activate();
+
+		add_action( 'rocket_activation', [ $this, 'activate_no_htaccess_html_expire' ] );
+	}
+
+	/**
+	 * Remove expiration on HTML on activation to prevent issue with Varnish cache.
+	 *
+	 * @since 3.7.2
+	 *
+	 * @return void
+	 */
+	public function activate_no_htaccess_html_expire() {
+		add_filter( 'rocket_htaccess_mod_expires', [ $this, 'remove_htaccess_html_expire' ] );
+	}
+}

wp-content/plugins/wp-rocket/inc/ThirdParty/Hostings/HostResolver.php

@@ -0,0 +1,113 @@
+<?php
+
+namespace WP_Rocket\ThirdParty\Hostings;
+
+/**
+ * Host Resolver.
+ *
+ * @since 3.6.3
+ */
+class HostResolver {
+
+	/**
+	 * Name of the current host service.
+	 *
+	 * @var string
+	 */
+	private static $hostname = '';
+
+	/**
+	 * Get the name of an identifiable hosting service.
+	 *
+	 * @since 3.6.3
+	 *
+	 * @param bool $ignore_cached_hostname (optional) Don't use cached hostname when true.
+	 *
+	 * @return string Name of the hosting service or '' if no service is recognized.
+	 */
+	public static function get_host_service( $ignore_cached_hostname = false ) {
+
+		if ( ! $ignore_cached_hostname && ! empty( self::$hostname ) ) {
+			return self::$hostname;
+		}
+
+		if ( isset( $_SERVER['cw_allowed_ip'] ) ) {
+			self::$hostname = 'cloudways';
+
+			return 'cloudways';
+		}
+
+		if ( rocket_get_constant( 'IS_PRESSABLE' ) ) {
+			self::$hostname = 'pressable';
+
+			return 'pressable';
+		}
+
+		if ( getenv( 'SPINUPWP_CACHE_PATH' ) ) {
+			self::$hostname = 'spinupwp';
+
+			return 'spinupwp';
+		}
+
+		if (
+		(
+			class_exists( 'WpeCommon' )
+			&&
+			function_exists( 'wpe_param' )
+		)
+		) {
+			self::$hostname = 'wpengine';
+
+			return 'wpengine';
+		}
+
+		if ( rocket_has_constant( 'O2SWITCH_VARNISH_PURGE_KEY' ) ) {
+			self::$hostname = 'o2switch';
+
+			return 'o2switch';
+		}
+
+		if ( rocket_get_constant( 'WPCOMSH_VERSION' ) ) {
+			self::$hostname = 'wordpresscom';
+
+			return 'wordpresscom';
+		}
+
+		if (
+			rocket_get_constant( '\Savvii\CacheFlusherPlugin::NAME_FLUSH_NOW' )
+			&&
+			rocket_get_constant( '\Savvii\CacheFlusherPlugin::NAME_DOMAINFLUSH_NOW' )
+		) {
+			return 'savvii';
+		}
+
+		if ( self::is_dreampress() ) {
+			return 'dreampress';
+		}
+
+		return '';
+	}
+
+	/**
+	 * Checks if the current host is DreamPress
+	 *
+	 * @since 3.7.2
+	 *
+	 * @return boolean
+	 */
+	private static function is_dreampress() {
+		if ( ! isset( $_SERVER['DH_USER'] ) ) {
+			return false;
+		}
+
+		if (
+			! rocket_get_constant( 'WP_ROCKET_IS_TESTING', false )
+			&&
+			'dp-' !== substr( gethostname(), 0, 3 )
+		) {
+			return false;
+		}
+
+		return 'wp_' === substr( sanitize_key( wp_unslash( $_SERVER['DH_USER'] ) ), 0, 3 );
+	}
+}

wp-content/plugins/wp-rocket/inc/ThirdParty/Hostings/HostSubscriberFactory.php

@@ -0,0 +1,46 @@
+<?php
+
+namespace WP_Rocket\ThirdParty\Hostings;
+
+use WP_Rocket\Event_Management\Subscriber_Interface;
+use WP_Rocket\ThirdParty\NullSubscriber;
+use WP_Rocket\ThirdParty\SubscriberFactoryInterface;
+
+/**
+ * Host Subscriber Factory
+ *
+ * @since 3.6.3
+ */
+class HostSubscriberFactory implements SubscriberFactoryInterface {
+	/**
+	 * Get a Subscriber Interface object.
+	 *
+	 * @since 3.6.3
+	 *
+	 * @return Subscriber_Interface A Subscribe Interface for the current host.
+	 */
+	public function get_subscriber() {
+		$host_service = HostResolver::get_host_service( rocket_get_constant( 'WP_ROCKET_IS_TESTING', false ) );
+
+		switch ( $host_service ) {
+			case 'pressable':
+				return new Pressable();
+			case 'cloudways':
+				return new Cloudways();
+			case 'spinupwp':
+				return new SpinUpWP();
+			case 'wpengine':
+				return new WPEngine();
+			case 'o2switch':
+				return new O2Switch();
+			case 'wordpresscom':
+				return new WordPressCom();
+			case 'savvii':
+				return new Savvii();
+			case 'dreampress':
+				return new Dreampress();
+			default:
+				return new NullSubscriber();
+		}
+	}
+}

wp-content/plugins/wp-rocket/inc/ThirdParty/Hostings/O2Switch.php

@@ -0,0 +1,126 @@
+<?php
+
+namespace WP_Rocket\ThirdParty\Hostings;
+
+use WP_Rocket\Engine\Activation\ActivationInterface;
+use WP_Rocket\Event_Management\Subscriber_Interface;
+use WP_Rocket\ThirdParty\NullSubscriber;
+use WP_Rocket\ThirdParty\ReturnTypesTrait;
+
+/**
+ * Compatibility class for O2Switch
+ *
+ * @since 3.6.3
+ */
+class O2Switch extends NullSubscriber implements Subscriber_Interface, ActivationInterface {
+	use ReturnTypesTrait;
+
+	/**
+	 * Array of events this subscriber wants to listen to.
+	 *
+	 * @since 3.6.3
+	 *
+	 * @return array
+	 */
+	public static function get_subscribed_events() {
+		return [
+			'do_rocket_varnish_http_purge'            => 'return_true',
+			'rocket_varnish_field_settings'           => 'varnish_addon_title',
+			'rocket_display_input_varnish_auto_purge' => 'return_false',
+			'rocket_cache_mandatory_cookies'          => [ 'return_empty_array', PHP_INT_MAX ],
+			'rocket_htaccess_mod_expires'             => [ 'remove_htaccess_html_expire', 5 ],
+			'rocket_varnish_purge_headers'            => 'add_purge_headers',
+			'rocket_varnish_purge_url'                => [ 'remove_regex_from_purge_url', 10, 2 ],
+		];
+	}
+
+	/**
+	 * Changes the text on the Varnish one-click block.
+	 *
+	 * @since 3.6.3
+	 *
+	 * @param array $settings Field settings data.
+	 *
+	 * @return array modified field settings data.
+	 */
+	public function varnish_addon_title( $settings ) {
+		$settings['varnish_auto_purge']['title'] = sprintf(
+		// Translators: %s = Hosting name.
+			__( 'Your site is hosted on %s, we have enabled Varnish auto-purge for compatibility.', 'rocket' ),
+			'O2Switch'
+		);
+
+		return $settings;
+	}
+
+	/**
+	 * Remove expiration on HTML to prevent issue with Varnish cache.
+	 *
+	 * @since 3.6.3
+	 *
+	 * @param  string $rules htaccess rules.
+	 *
+	 * @return string        Updated htaccess rules.
+	 */
+	public function remove_htaccess_html_expire( $rules ) {
+		$rules = preg_replace( '@\s*#\s*Your document html@', '', $rules );
+		$rules = preg_replace( '@\s*ExpiresByType text/html\s*"access plus \d+ (seconds|minutes|hour|week|month|year)"@', '', $rules );
+
+		return $rules;
+	}
+
+	/**
+	 * Adjust purge request header array.
+	 *
+	 * @since 3.6.3
+	 *
+	 * @param array $headers Headers to send.
+	 *
+	 * @return array Array for headers to be sent.
+	 */
+	public function add_purge_headers( $headers ) {
+		$headers['X-VC-Purge-Key'] = rocket_get_constant( 'O2SWITCH_VARNISH_PURGE_KEY' );
+
+		if ( isset( $headers['X-Purge-Method'] ) && 'regex' === $headers['X-Purge-Method'] ) {
+			$headers['X-Purge-Regex'] = '.*';
+
+			unset( $headers['X-Purge-Method'] );
+		}
+
+		return $headers;
+	}
+
+	/**
+	 * Remove regex part from purge_url as it's handled via headers instead.
+	 *
+	 * @since 3.6.3
+	 *
+	 * @param string $full_purge_url Full url for purge, regex included.
+	 * @param string $main_purge_url Main url without regex.
+	 *
+	 * @return mixed
+	 */
+	public function remove_regex_from_purge_url( $full_purge_url, $main_purge_url ) {
+		return $main_purge_url;
+	}
+
+	/**
+	 * Performs these actions during the plugin activation
+	 *
+	 * @return void
+	 */
+	public function activate() {
+		add_action( 'rocket_activation', [ $this, 'activate_no_htaccess_html_expire' ] );
+	}
+
+	/**
+	 * Remove expiration on HTML on activation to prevent issue with Varnish cache.
+	 *
+	 * @since 3.6.3
+	 *
+	 * @return void
+	 */
+	public function activate_no_htaccess_html_expire() {
+		add_filter( 'rocket_htaccess_mod_expires', [ $this, 'remove_htaccess_html_expire' ] );
+	}
+}

wp-content/plugins/wp-rocket/inc/ThirdParty/Hostings/Pressable.php

@@ -0,0 +1,70 @@
+<?php
+namespace WP_Rocket\ThirdParty\Hostings;
+
+/**
+ * Subscriber for compatibility with Pressable hosting
+ *
+ * @since 3.3
+ */
+class Pressable extends AbstractNoCacheHost {
+	/**
+	 * Return an array of events that this subscriber wants to listen to.
+	 *
+	 * @since  3.3
+	 *
+	 * @return array
+	 */
+	public static function get_subscribed_events() {
+		return [
+			'do_rocket_generate_caching_files'    => [ 'return_false', PHP_INT_MAX ],
+			'rocket_display_varnish_options_tab'  => 'return_false',
+			'rocket_cache_mandatory_cookies'      => [ 'return_empty_array', PHP_INT_MAX ],
+			'after_rocket_clean_domain'           => 'purge_pressable_cache',
+			'rocket_url_to_path'                  => 'fix_wp_includes_path',
+			'rocket_set_wp_cache_constant'        => 'return_false',
+			'rocket_generate_advanced_cache_file' => 'return_false',
+			'rocket_cdn_cnames'                   => [ 'add_pressable_cdn_cname', 1 ],
+		];
+	}
+
+	/**
+	 * Purge Pressable cache
+	 *
+	 * @since 3.3
+	 *
+	 * @return void
+	 */
+	public function purge_pressable_cache() {
+		wp_cache_flush();
+	}
+
+	/**
+	 * Modify wp-includes absolute path to be able to optimize assets in this directory on Pressable
+	 *
+	 * @since 3.3
+	 *
+	 * @param string $file Absolute path to the file.
+	 * @return string
+	 */
+	public function fix_wp_includes_path( $file ) {
+		return preg_replace( '#^(.+)(wp-includes(?:.+))$#is', ABSPATH . '$2', $file );
+	}
+
+	/**
+	 * Add Pressable CDN cname to WP Rocket list to recognize assets as internal ones.
+	 *
+	 * @since 3.3
+	 *
+	 * @param array $hosts Array of CDN URLs.
+	 * @return array
+	 */
+	public function add_pressable_cdn_cname( $hosts ) {
+		if ( ! rocket_get_constant( 'WP_STACK_CDN_DOMAIN' ) ) {
+			return $hosts;
+		}
+
+		$hosts[] = WP_STACK_CDN_DOMAIN;
+
+		return $hosts;
+	}
+}

wp-content/plugins/wp-rocket/inc/ThirdParty/Hostings/Savvii.php

@@ -0,0 +1,97 @@
+<?php
+
+namespace WP_Rocket\ThirdParty\Hostings;
+
+use Savvii\CacheFlusherPlugin;
+use WP_Rocket\Event_Management\Subscriber_Interface;
+use WP_Rocket\ThirdParty\ReturnTypesTrait;
+
+/**
+ * Compatibility for Savvii.
+ *
+ * @since 3.6.3
+ */
+class Savvii implements Subscriber_Interface {
+	use ReturnTypesTrait;
+
+	/**
+	 * Returns an array of events that this subscriber wants to listen to.
+	 *
+	 * @see Subscriber_Interface.
+	 *
+	 * @since 3.6.3
+	 *
+	 * @return array
+	 */
+	public static function get_subscribed_events() {
+		return [
+			'do_rocket_generate_caching_files'        => [ 'return_false', PHP_INT_MAX ],
+			'rocket_varnish_field_settings'           => 'varnish_addon_title',
+			'rocket_display_input_varnish_auto_purge' => 'return_false',
+			'rocket_cache_mandatory_cookies'          => 'return_empty_array',
+			'init'                                    => 'clear_cache_after_savvii',
+			'after_rocket_clean_domain'               => 'clean_savvii',
+		];
+	}
+
+	/**
+	 * Changes the text on the Varnish one-click block.
+	 *
+	 * @since 3.6.3 Rename and move to new architecture.
+	 * @since  3.0
+	 *
+	 * @param array $settings Field settings data.
+	 *
+	 * @return array modified field settings data.
+	 */
+	public function varnish_addon_title( $settings ) {
+		$settings['varnish_auto_purge']['title'] = sprintf(
+		// Translators: %s = Hosting name.
+			__( 'Your site is hosted on %s, we have enabled Varnish auto-purge for compatibility.', 'rocket' ),
+			'Savvii'
+		);
+
+		return $settings;
+	}
+
+	/**
+	 * Clear WP Rocket cache after purged the Varnish cache via Savvii Hosting.
+	 *
+	 * @since 3.6.3 Rename and move to new architecture. Refactor. Fix wrong nonce names/actions.
+	 * @since 2.6.5
+	 */
+	public function clear_cache_after_savvii() {
+		if (
+			! (
+				isset( $_REQUEST[ CacheFlusherPlugin::NAME_FLUSH_NOW ] )
+				&&
+				check_admin_referer( CacheFlusherPlugin::NAME_FLUSH_NOW )
+			)
+			&&
+			! (
+				isset( $_REQUEST[ CacheFlusherPlugin::NAME_DOMAINFLUSH_NOW ] )
+				&&
+				check_admin_referer( CacheFlusherPlugin::NAME_DOMAINFLUSH_NOW )
+			)
+		) {
+			return;
+		}
+
+		// Clear all caching files.
+		rocket_clean_domain();
+
+		// Preload cache.
+		run_rocket_bot();
+		run_rocket_sitemap_preload();
+	}
+
+	/**
+	 * Call the cache server to purge the cache with Savvii hosting.
+	 *
+	 * @since 3.6.3 Rename and move to new architecture.
+	 * @since 2.6.5
+	 */
+	public function clean_savvii() {
+		do_action( 'warpdrive_domain_flush' ); //phpcs:ignore WordPress.NamingConventions.PrefixAllGlobals.NonPrefixedHooknameFound
+	}
+}

wp-content/plugins/wp-rocket/inc/ThirdParty/Hostings/ServiceProvider.php

@@ -0,0 +1,50 @@
+<?php
+
+namespace WP_Rocket\ThirdParty\Hostings;
+
+use WP_Rocket\Engine\Container\ServiceProvider\AbstractServiceProvider;
+use WP_Rocket\Engine\Container\ServiceProvider\BootableServiceProviderInterface;
+use WP_Rocket\ThirdParty\Hostings\HostResolver;
+use WP_Rocket\ThirdParty\Hostings\HostSubscriberFactory;
+
+/**
+ * Hostings compatibility service provider
+ *
+ * @since 3.6.3
+ */
+class ServiceProvider extends AbstractServiceProvider implements BootableServiceProviderInterface {
+	/**
+	 * Services provided
+	 *
+	 * @var array
+	 */
+	protected $provides = [];
+
+	/**
+	 * Register the service in the provider array
+	 *
+	 * @return void
+	 */
+	public function boot() {
+		$hosting_service = HostResolver::get_host_service();
+
+		if ( ! empty( $hosting_service ) ) {
+			$this->provides[] = $hosting_service;
+		}
+	}
+
+	/**
+	 * Registers the current hosting subscriber in the container
+	 *
+	 * @since 3.6.3
+	 *
+	 * @return void
+	 */
+	public function register() {
+		$hosting_service = HostResolver::get_host_service();
+
+		if ( ! empty( $hosting_service ) ) {
+			$this->getContainer()->share( $hosting_service, ( new HostSubscriberFactory() )->get_subscriber() );
+		}
+	}
+}

wp-content/plugins/wp-rocket/inc/ThirdParty/Hostings/SpinUpWP.php

@@ -0,0 +1,56 @@
+<?php
+
+namespace WP_Rocket\ThirdParty\Hostings;
+
+use WP_Rocket\Event_Management\Subscriber_Interface;
+use WP_Rocket\ThirdParty\NullSubscriber;
+use WP_Rocket\ThirdParty\ReturnTypesTrait;
+
+/**
+ * Compatibility class for SpinUpWP
+ *
+ * @since 3.6.2
+ */
+class SpinUpWP extends NullSubscriber implements Subscriber_Interface {
+	use ReturnTypesTrait;
+
+	/**
+	 * Array of events this subscriber wants to listen to.
+	 *
+	 * @since 3.6.2
+	 *
+	 * @return array
+	 */
+	public static function get_subscribed_events() {
+		return [
+			'do_rocket_generate_caching_files'   => 'return_false',
+			'rocket_display_varnish_options_tab' => 'return_false',
+			'rocket_cache_mandatory_cookies'     => 'return_empty_array',
+			'after_rocket_clean_domain'          => 'purge_site',
+			'wp_rocket_loaded'                   => 'remove_actions',
+		];
+	}
+
+	/**
+	 * Purge SpinUpWP cache after clean domain.
+	 *
+	 * @since 3.6.2
+	 */
+	public function purge_site() {
+		if ( ! function_exists( 'spinupwp_purge_site' ) ) {
+			return;
+		}
+
+		spinupwp_purge_site();
+	}
+
+	/**
+	 * Remove rocket_clean_domain which prevents a double clear of the cache.
+	 *
+	 * @since 3.6.2
+	 */
+	public function remove_actions() {
+		remove_action( 'switch_theme', 'rocket_clean_domain' );
+	}
+
+}

wp-content/plugins/wp-rocket/inc/ThirdParty/Hostings/WPEngine.php

@@ -0,0 +1,113 @@
+<?php
+
+namespace WP_Rocket\ThirdParty\Hostings;
+
+use WpeCommon;
+
+/**
+ * Compatibility class for WP Engine.
+ *
+ * @since 3.6.1
+ */
+class WPEngine extends AbstractNoCacheHost {
+	/**
+	 * Array of events this subscriber wants to listen to.
+	 *
+	 * @since 3.6.1
+	 *
+	 * @return array
+	 */
+	public static function get_subscribed_events() {
+		return [
+			'rocket_varnish_field_settings'           => 'varnish_addon_title',
+			'rocket_display_input_varnish_auto_purge' => 'return_false',
+			'rocket_cache_mandatory_cookies'          => [ 'return_empty_array', PHP_INT_MAX ],
+			'admin_init'                              => 'run_rocket_bot_after_wpengine',
+			'rocket_set_wp_cache_constant'            => 'return_false',
+			'do_rocket_generate_caching_files'        => 'return_false',
+			'after_rocket_clean_domain'               => 'clean_wpengine',
+			'rocket_buffer'                           => [ 'add_footprint', 50 ],
+			'rocket_disable_htaccess'                 => 'return_true',
+			'rocket_generate_advanced_cache_file'     => 'return_false',
+		];
+	}
+
+	/**
+	 * Changes the text on the Varnish one-click block.
+	 *
+	 * @since 3.6.1
+	 *
+	 * @param array $settings Field settings data.
+	 *
+	 * @return array modified field settings data.
+	 */
+	public function varnish_addon_title( $settings ) {
+		$settings['varnish_auto_purge']['title'] = sprintf(
+			// Translators: %s = Hosting name.
+			__( 'Your site is hosted on %s, we have enabled Varnish auto-purge for compatibility.', 'rocket' ),
+			'WP Engine'
+		);
+
+		return $settings;
+	}
+
+	/**
+	 * Run WP Rocket preload bot after purged the Varnish cache via WP Engine Hosting.
+	 *
+	 * @since 3.6.1
+	 */
+	public function run_rocket_bot_after_wpengine() {
+		if ( ! wpe_param( 'purge-all' ) ) {
+			return;
+		}
+
+		if ( ! rocket_has_constant( 'PWP_NAME' ) ) {
+			return;
+		}
+
+		if ( ! check_admin_referer( rocket_get_constant( 'PWP_NAME' ) . '-config' ) ) {
+			return;
+		}
+
+		// Preload cache.
+		run_rocket_bot();
+		run_rocket_sitemap_preload();
+	}
+
+	/**
+	 * Call the cache server to purge the cache with WP Engine hosting.
+	 *
+	 * @since 3.6.1
+	 */
+	public function clean_wpengine() {
+		if ( method_exists( 'WpeCommon', 'purge_memcached' ) ) {
+			WpeCommon::purge_memcached();
+		}
+
+		if ( method_exists( 'WpeCommon', 'purge_varnish_cache' ) ) {
+			WpeCommon::purge_varnish_cache();
+		}
+	}
+
+	/**
+	 * Add WP Rocket footprint on Buffer.
+	 *
+	 * @since 3.6.1
+	 *
+	 * @param string $buffer HTML content.
+	 *
+	 * @return string HTML with WP Rocket footprint.
+	 */
+	public function add_footprint( $buffer ) {
+		if ( ! preg_match( '/<\/html>/i', $buffer ) ) {
+			return $buffer;
+		}
+
+		$footprint  = rocket_get_constant( 'WP_ROCKET_WHITE_LABEL_FOOTPRINT' )
+			? "\n" . '<!-- Optimized for great performance'
+			: "\n" . '<!-- This website is like a Rocket, isn\'t it? Performance optimized by ' . rocket_get_constant( 'WP_ROCKET_PLUGIN_NAME' ) . '. Learn more: https://wp-rocket.me';
+		$footprint .= ' -->';
+
+		return $buffer . $footprint;
+	}
+}

wp-content/plugins/wp-rocket/inc/ThirdParty/Hostings/WordPressCom.php

@@ -0,0 +1,39 @@
+<?php
+
+namespace WP_Rocket\ThirdParty\Hostings;
+
+/**
+ * Subscriber for compatibility with WordPress.com hosting.
+ *
+ * @since 3.6.3
+ */
+class WordPressCom extends AbstractNoCacheHost {
+	/**
+	 * Array of events this subscriber listens to.
+	 *
+	 * @since 3.6.3
+	 *
+	 * @return array The array of subscribed events.
+	 */
+	public static function get_subscribed_events() {
+		return [
+			'do_rocket_generate_caching_files'    => 'return_false',
+			'rocket_cache_mandatory_cookies'      => 'return_empty_array',
+			'rocket_display_varnish_options_tab'  => 'return_false',
+			'rocket_set_wp_cache_constant'        => 'return_false',
+			'rocket_generate_advanced_cache_file' => 'return_false',
+			'after_rocket_clean_domain'           => 'purge_wpcom_cache',
+		];
+	}
+
+	/**
+	 * Purge WordPress.com cache
+	 *
+	 * @since 3.6.3
+	 *
+	 * @return void
+	 */
+	public function purge_wpcom_cache() {
+		wp_cache_flush();
+	}
+}