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<?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;
}
if ( ! current_user_can( 'rocket_preload_cache' ) ) {
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;
}
}