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<?php
/**
* File: CdnEngine.php
*
* @package W3TC
*/
namespace W3TC;
/**
* Class: CdnEngine
*
* phpcs:disable WordPress.PHP.DiscouragedPHPFunctions.serialize_serialize
*/
class CdnEngine {
/**
* Returns CdnEngine_Base instance.
*
* @param string $engine CDN engine.
* @param array $config Configuration.
*
* @return CdnEngine_Base
*/
public static function instance( $engine, array $config = array() ) {
static $instances = array();
$instance_key = sprintf( '%s_%s', $engine, md5( serialize( $config ) ) );
if ( ! isset( $instances[ $instance_key ] ) ) {
switch ( $engine ) {
case 'akamai':
$instances[ $instance_key ] = new CdnEngine_Mirror_Akamai( $config );
break;
case 'att':
$instances[ $instance_key ] = new CdnEngine_Mirror_Att( $config );
break;
case 'azure':
$instances[ $instance_key ] = new CdnEngine_Azure( $config );
break;
case 'azuremi':
$instances[ $instance_key ] = new CdnEngine_Azure_MI( $config );
break;
case 'bunnycdn':
$instances[ $instance_key ] = new CdnEngine_Mirror_BunnyCdn( $config );
break;
case 'cf':
$instances[ $instance_key ] = new CdnEngine_CloudFront( $config );
break;
case 'cf2':
$instances[ $instance_key ] = new CdnEngine_Mirror_CloudFront( $config );
break;
case 'cotendo':
$instances[ $instance_key ] = new CdnEngine_Mirror_Cotendo( $config );
break;
case 'edgecast':
$instances[ $instance_key ] = new CdnEngine_Mirror_Edgecast( $config );
break;
case 'ftp':
$instances[ $instance_key ] = new CdnEngine_Ftp( $config );
break;
case 'google_drive':
$instances[ $instance_key ] = new CdnEngine_GoogleDrive( $config );
break;
case 'mirror':
$instances[ $instance_key ] = new CdnEngine_Mirror( $config );
break;
case 'rackspace_cdn':
$instances[ $instance_key ] = new CdnEngine_Mirror_RackSpaceCdn( $config );
break;
case 'rscf':
$instances[ $instance_key ] = new CdnEngine_RackSpaceCloudFiles( $config );
break;
case 's3':
$instances[ $instance_key ] = new CdnEngine_S3( $config );
break;
case 's3_compatible':
$instances[ $instance_key ] = new CdnEngine_S3_Compatible( $config );
break;
default:
empty( $engine ) || trigger_error( 'Incorrect CDN engine', E_USER_WARNING ); // phpcs:ignore WordPress.PHP.DevelopmentFunctions.error_log_trigger_error
$instances[ $instance_key ] = new CdnEngine_Base();
break;
}
}
return $instances[ $instance_key ];
}
}