laipower/wp-content/plugins/w3-total-cache/CdnEngine_Mirror_RackSpaceCdn.php

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<?php
namespace W3TC;
/**
* Rackspace CDN (pull) engine
*/
class CdnEngine_Mirror_RackSpaceCdn extends CdnEngine_Mirror {
private $_access_state;
private $_service_id;
private $_domains;
private $_api;
private $_new_access_state_callback;
function __construct( $config = array() ) {
$config = array_merge( array(
'user_name' => '',
'api_key' => '',
'region' => '',
'service_id' => '',
'service_access_url' => '',
'service_protocol' => 'http',
'domains' => array(),
'access_state' => '',
'new_access_state_callback' => ''
), $config );
$this->_service_id = $config['service_id'];
$this->_new_access_state_callback = $config['new_access_state_callback'];
// init access state
$this->_access_state = @json_decode( $config['access_state'], true );
if ( !is_array( $this->_access_state ) )
$this->_access_state = array();
$this->_access_state = array_merge( array(
'access_token' => '',
'access_region_descriptor' => array()
), $this->_access_state );
// cnames
if ( $config['service_protocol'] != 'https' && !empty( $config['domains'] ) )
$this->_domains = (array)$config['domains'];
else
$this->_domains = array( $config['service_access_url'] );
// form 'ssl' parameter based on service protocol
if ( $config['service_protocol'] == 'https' )
$config['ssl'] = 'enabled';
else
$config['ssl'] = 'disabled';
parent::__construct( $config );
$this->_create_api( array( $this, '_on_new_access_requested_api' ) );
}
private function _create_api( $new_access_required_callback_api ) {
$this->_api = new Cdn_RackSpace_Api_Cdn( array(
'access_token' => $this->_access_state['access_token'],
'access_region_descriptor' => $this->_access_state['access_region_descriptor'],
'new_access_required' => $new_access_required_callback_api ) );
}
/**
* Called when new access token issued by api objects
*/
public function _on_new_access_requested_api() {
$r = Cdn_RackSpace_Api_Tokens::authenticate( $this->_config['user_name'],
$this->_config['api_key'] );
if ( !isset( $r['access_token'] ) || !isset( $r['services'] ) )
throw new \Exception( 'Authentication failed' );
$r['regions'] = Cdn_RackSpace_Api_Tokens::cdn_services_by_region(
$r['services'] );
if ( !isset( $r['regions'][$this->_config['region']] ) )
throw new \Exception( 'Region ' . $this->_config['region'] . ' not found' );
$this->_access_state['access_token'] = $r['access_token'];
$this->_access_state['access_region_descriptor'] =
$r['regions'][$this->_config['region']];
$this->_create_api( array( $this, '_on_new_access_requested_second_time' ) );
if ( !empty( $this->_new_access_state_callback ) )
call_user_func( $this->_new_access_state_callback,
json_encode( $this->_access_state ) );
return $this->_api;
}
private function _on_new_access_requested_second_time() {
throw new \Exception( 'Authentication failed' );
}
/**
* Purges remote files
*
* @param array $files
* @param array $results
* @return boolean
*/
function purge( $files, &$results ) {
$results = array();
try {
foreach ( $files as $file ) {
$url = $this->_format_url( $file['remote_path'] );
$this->_api->purge( $this->_service_id, $url );
$results[] = $this->_get_result( '', '', W3TC_CDN_RESULT_OK, 'OK' );
}
} catch ( \Exception $e ) {
$results[] = $this->_get_result( '', '', W3TC_CDN_RESULT_HALT,
__( 'Failed to purge: ', 'w3-total-cache' ) . $e->getMessage() );
}
return !$this->_is_error( $results );
}
public function get_domains() {
return $this->_domains;
}
public function service_domains_get() {
$service = $this->_api->service_get( $this->_service_id );
$domains = array();
if ( isset( $service['domains'] ) ) {
foreach ( $service['domains'] as $d )
$domains[] = $d['domain'];
}
return $domains;
}
public function service_domains_set( $domains ) {
$value = array();
foreach ( $domains as $d ) {
$v = array( 'domain' => $d );
if ( $this->_config['service_protocol'] == 'https' )
$v['protocol'] = 'https';
$value[] = $v;
}
$this->_api->service_set( $this->_service_id,
array( array(
'op' => 'replace',
'path' => '/domains',
'value' => $value ) ) );
}
}