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<?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;
}
}