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

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<?php
namespace W3TC;
class Cdn_RackSpace_Api_Cdn {
private $_access_token;
private $_access_region_descriptor;
private $_new_access_required = null;
public function __construct( $config = array() ) {
$this->_access_token = $config['access_token'];
$this->_access_region_descriptor = $config['access_region_descriptor'];
$this->_new_access_required = $config['new_access_required'];
}
public function services() {
$r = $this->_wp_remote_get( '/services' );
if ( !isset( $r['services'] ) )
return array();
return $r['services'];
}
public function service_get( $service ) {
$response = $this->_wp_remote_get( '/services/' . $service );
// expand links to links_by_rel
if ( isset( $response['links'] ) ) {
$by_rel = array();
foreach ( $response['links'] as $r ) {
$by_rel[ $r['rel'] ] = $r;
}
$response['links_by_rel'] = $by_rel;
}
return $response;
}
public function service_create( $data ) {
// required static
$data['flavor_id'] = 'cdn';
return $this->_wp_remote_post( '/services', json_encode( $data ),
array(
'Accept' => 'application/json',
'Content-type' => 'application/json'
) );
}
public function service_set( $service_id, $data ) {
return $this->_wp_remote_patch( '/services/' . $service_id,
json_encode( $data ),
array(
'Accept' => 'application/json',
'Content-type' => 'application/json'
) );
}
public function purge( $service_id, $url ) {
return $this->_wp_remote_delete( '/services/' . $service_id . '/assets?url=' .
urlencode( $url ) );
}
private function _wp_remote_get( $uri ) {
if ( !empty( $this->_access_region_descriptor['cdn.publicURL'] ) ) {
$url_base = $this->_access_region_descriptor['cdn.publicURL'];
$result = wp_remote_get( $url_base . $uri . '?format=json', array(
'headers' => 'X-Auth-Token: ' . $this->_access_token
//'sslcertificates' => dirname( __FILE__ ) . '/Cdn_RackSpace_Api_CaCert.pem'
) );
$r = self::_decode_response_json( $result );
if ( !$r['auth_required'] )
return $r['response_json'];
}
$new_object = call_user_func( $this->_new_access_required );
return $new_object->_wp_remote_get( $uri );
}
private function _wp_remote_patch( $uri, $body = array(), $headers = array() ) {
if ( !empty( $this->_access_region_descriptor['cdn.publicURL'] ) ) {
$url_base = $this->_access_region_descriptor['cdn.publicURL'];
$headers['X-Auth-Token'] = $this->_access_token;
$result = wp_remote_post( $url_base . $uri, array(
'headers' => $headers,
'body' => $body,
//'sslcertificates' => dirname( __FILE__ ) . '/Cdn_RackSpace_Api_CaCert.pem',
'method' => 'PATCH'
) );
$r = self::_decode_response( $result );
if ( !$r['auth_required'] ) {
$location = explode( '/', $result['headers']['location'] );
return $location[ count( $location ) - 1 ];
}
}
$new_object = call_user_func( $this->_new_access_required );
return $new_object->_wp_remote_patch( $uri, $body );
}
private function _wp_remote_post( $uri, $body = array(), $headers = array() ) {
if ( !empty( $this->_access_region_descriptor['cdn.publicURL'] ) ) {
$url_base = $this->_access_region_descriptor['cdn.publicURL'];
$headers['X-Auth-Token'] = $this->_access_token;
$result = wp_remote_post( $url_base . $uri, array(
'headers' => $headers,
'body' => $body
//'sslcertificates' => dirname( __FILE__ ) . '/Cdn_RackSpace_Api_CaCert.pem'
) );
$r = self::_decode_response( $result );
if ( !$r['auth_required'] ) {
$location = explode( '/', $result['headers']['location'] );
return $location[ count( $location ) - 1 ];
}
}
$new_object = call_user_func( $this->_new_access_required );
return $new_object->_wp_remote_post( $uri, $body );
}
private function _wp_remote_delete( $uri, $headers = array() ) {
if ( !empty( $this->_access_region_descriptor['cdn.publicURL'] ) ) {
$url_base = $this->_access_region_descriptor['cdn.publicURL'];
$headers['X-Auth-Token'] = $this->_access_token;
$result = wp_remote_post( $url_base . $uri, array(
'headers' => $headers,
//'sslcertificates' => dirname( __FILE__ ) . '/Cdn_RackSpace_Api_CaCert.pem',
'method' => 'DELETE'
) );
$r = self::_decode_response( $result );
if ( !$r['auth_required'] )
return;
}
$new_object = call_user_func( $this->_new_access_required );
return $new_object->_wp_remote_delete( $uri, array() );
}
static private function _decode_response_json( $result ) {
if ( is_wp_error( $result ) )
throw new \Exception( 'Failed to reach API endpoint' );
if ( empty( $result['body'] ) )
$response_json = array();
else {
if ( $result['body'] == 'Unauthorized' )
return array(
'response_json' => array(),
'auth_required' => true
);
$response_json = @json_decode( $result['body'], true );
if ( is_null( $response_json ) )
throw new \Exception(
'Failed to reach API endpoint, got unexpected response ' .
$result['body'] );
}
if ( $result['response']['code'] != '200' &&
$result['response']['code'] != '201' &&
$result['response']['code'] != '202' &&
$result['response']['code'] != '204' )
throw new \Exception( $result['body'] );
return array(
'response_json' => $response_json,
'auth_required' => false
);
}
static private function _decode_response( $result ) {
if ( is_wp_error( $result ) )
throw new \Exception( 'Failed to reach API endpoint' );
if ( $result['response']['code'] != '200' &&
$result['response']['code'] != '201' &&
$result['response']['code'] != '202' &&
$result['response']['code'] != '204' ) {
if ( $result['response']['message'] == 'Unauthorized' )
return array(
'response_json' => array(),
'auth_required' => true
);
// try to decode response
$response_json = @json_decode( $result['body'], true );
if ( is_null( $response_json ) ||
!isset( $response_json['message'] ) )
throw new \Exception(
'Failed to reach API endpoint, got unexpected response ' .
$result['response']['message'] );
else {
$errors = array();
if ( is_string( $response_json['message'] ) ) {
$errors[] = $response_json['message'];
} elseif ( isset( $response_json['message']['errors'] ) ) {
foreach ( $response_json['message']['errors'] as $error )
$errors[] = $error['message'];
}
throw new \Exception( implode( ';', $errors ) );
}
}
return array( 'auth_required' => false );
}
}