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<?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' ] );
}
}