Viewing file:  Cdn.php (4.21 KB) -rw-rw-rw-
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<?php
/**
* W3 CDN Class
*/
define('W3TC_CDN_FTP', 'ftp');
define('W3TC_CDN_S3', 's3');
define('W3TC_CDN_CF_S3', 'cf');
define('W3TC_CDN_CF_CUSTOM', 'cf2');
define('W3TC_CDN_RSCF', 'rscf');
define('W3TC_CDN_AZURE', 'azure');
define('W3TC_CDN_MIRROR', 'mirror');
define('W3TC_CDN_NETDNA', 'netdna');
define('W3TC_CDN_MAXCDN', 'maxcdn');
define('W3TC_CDN_COTENDO', 'cotendo');
define('W3TC_CDN_EDGECAST', 'edgecast');
define('W3TC_CDN_ATT', 'att');
define('W3TC_CDN_AKAMAI', 'akamai');
/**
* Class W3_Cdn
*/
class W3_Cdn {
/**
* Returns W3_Cdn_Base instance
*
* @param string $engine
* @param array $config
* @return W3_Cdn_Base
*/
static function instance($engine, $config = array()) {
static $instances = array();
$instance_key = sprintf('%s_%s', $engine, md5(serialize($config)));
if (!isset($instances[$instance_key])) {
switch (true) {
case ($engine == W3TC_CDN_FTP):
w3_require_once(W3TC_LIB_W3_DIR . '/Cdn/Ftp.php');
$instances[$instance_key] = new W3_Cdn_Ftp($config);
break;
case ($engine == W3TC_CDN_S3):
w3_require_once(W3TC_LIB_W3_DIR . '/Cdn/S3.php');
$instances[$instance_key] = new W3_Cdn_S3($config);
break;
case ($engine == W3TC_CDN_CF_S3):
w3_require_once(W3TC_LIB_W3_DIR . '/Cdn/S3/Cf/S3.php');
$instances[$instance_key] = new W3_Cdn_S3_Cf_S3($config);
break;
case ($engine == W3TC_CDN_CF_CUSTOM):
w3_require_once(W3TC_LIB_W3_DIR . '/Cdn/S3/Cf/Custom.php');
$instances[$instance_key] = new W3_Cdn_S3_Cf_Custom($config);
break;
case ($engine == W3TC_CDN_RSCF):
w3_require_once(W3TC_LIB_W3_DIR . '/Cdn/Rscf.php');
$instances[$instance_key] = new W3_Cdn_Rscf($config);
break;
case ($engine == W3TC_CDN_AZURE):
w3_require_once(W3TC_LIB_W3_DIR . '/Cdn/Azure.php');
$instances[$instance_key] = new W3_Cdn_Azure($config);
break;
case ($engine == W3TC_CDN_MIRROR):
w3_require_once(W3TC_LIB_W3_DIR . '/Cdn/Mirror.php');
$instances[$instance_key] = new W3_Cdn_Mirror($config);
break;
case ($engine == W3TC_CDN_NETDNA):
w3_require_once(W3TC_LIB_W3_DIR . '/Cdn/Mirror/Netdna.php');
$instances[$instance_key] = new W3_Cdn_Mirror_Netdna($config);
break;
case ($engine == W3TC_CDN_MAXCDN):
w3_require_once(W3TC_LIB_W3_DIR . '/Cdn/Mirror/MaxCDN.php');
$instances[$instance_key] = new W3_Cdn_Mirror_MaxCDN($config);
break;
case ($engine == W3TC_CDN_COTENDO):
w3_require_once(W3TC_LIB_W3_DIR . '/Cdn/Mirror/Cotendo.php');
$instances[$instance_key] = new W3_Cdn_Mirror_Cotendo($config);
break;
case ($engine == W3TC_CDN_EDGECAST):
w3_require_once(W3TC_LIB_W3_DIR . '/Cdn/Mirror/Edgecast.php');
$instances[$instance_key] = new W3_Cdn_Mirror_Edgecast($config);
break;
case ($engine == W3TC_CDN_ATT):
w3_require_once(W3TC_LIB_W3_DIR . '/Cdn/Mirror/Att.php');
$instances[$instance_key] = new W3_Cdn_Mirror_ATT($config);
break;
case ($engine == W3TC_CDN_AKAMAI):
w3_require_once(W3TC_LIB_W3_DIR . '/Cdn/Mirror/Akamai.php');
$instances[$instance_key] = new W3_Cdn_Mirror_Akamai($config);
break;
default :
trigger_error('Incorrect CDN engine', E_USER_WARNING);
w3_require_once(W3TC_LIB_W3_DIR . '/Cdn/Base.php');
$instances[$instance_key] = new W3_Cdn_Base();
break;
}
}
return $instances[$instance_key];
}
}
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