AlkantarClanX12
Your IP : 18.224.73.157
<?php
namespace W3TC;
/**
* Rackspace Cloud Files CDN engine
*/
class CdnEngine_RackSpaceCloudFiles extends CdnEngine_Base {
private $_access_state;
private $_container;
private $_api_files;
private $_api_cdn;
function __construct( $config = array() ) {
$config = array_merge( array(
'user_name' => '',
'api_key' => '',
'region' => '',
'container' => '',
'cname' => array(),
'access_state' => ''
), $config );
$this->_container = $config['container'];
$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(),
'host_http' => '',
'host_https' => ''
), $this->_access_state );
parent::__construct( $config );
$this->_create_api(
array( $this, '_on_new_access_requested_api_files' ),
array( $this, '_on_new_access_requested_api_cdn' ) );
}
private function _create_api( $new_access_required_callback_api_files,
$new_access_required_callback_api_cdn ) {
$this->_api_files = new Cdn_RackSpace_Api_CloudFiles( 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_files ) );
$this->_api_cdn = new Cdn_RackSpace_Api_CloudFilesCdn( 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_cdn ) );
}
/**
* Called when new access token issued by api objects
*/
public function _on_new_access_requested_api_files() {
$this->_on_new_access_requested();
return $this->_api_files;
}
/**
* Called when new access token issued by api objects
*/
public function _on_new_access_requested_api_cdn() {
$this->_on_new_access_requested();
return $this->_api_cdn;
}
private function _on_new_access_requested() {
$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::cloudfiles_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' ),
array( $this, '_on_new_access_requested_second_time' ) );
$c = $this->_api_cdn->container_get( $this->_config['container'] );
$this->_access_state['host_http'] = substr( $c['x-cdn-uri'], 7 );
$this->_access_state['host_https'] = substr( $c['x-cdn-ssl-uri'], 8 );
call_user_func( $this->_new_access_state_callback,
json_encode( $this->_access_state ) );
}
private function _on_new_access_requested_second_time() {
throw new \Exception( 'Authentication failed' );
}
/**
* Formats URL
*/
function _format_url( $path ) {
$domain = $this->get_domain( $path );
if ( $domain ) {
$scheme = $this->_get_scheme();
// it does not support '+', requires '%2B'
$path = str_replace( '+', '%2B', $path );
$url = sprintf( '%s://%s/%s', $scheme, $domain, $path );
return $url;
}
return false;
}
/**
* Uploads files to CDN
*
* @param array $files
* @param array $results
* @param boolean $force_rewrite
* @return boolean
*/
function upload( $files, &$results, $force_rewrite = false,
$timeout_time = NULL ) {
foreach ( $files as $file ) {
$local_path = $file['local_path'];
$remote_path = $file['remote_path'];
// process at least one item before timeout so that progress goes on
if ( !empty( $results ) ) {
if ( !is_null( $timeout_time ) && time() > $timeout_time ) {
return 'timeout';
}
}
if ( !file_exists( $local_path ) ) {
$results[] = $this->_get_result( $local_path, $remote_path,
W3TC_CDN_RESULT_ERROR, 'Source file not found.', $file );
continue;
}
$file_content = file_get_contents( $local_path );
$do_write = true;
// rewrite is optional, check md5
if ( !$force_rewrite ) {
$object_meta = null;
try {
$object_meta = $this->_api_files->object_get_meta_or_null(
$this->_container, $remote_path );
} catch ( \Exception $exception ) {
$results[] = $this->_get_result( $local_path, $remote_path,
W3TC_CDN_RESULT_ERROR,
sprintf( 'Unable to check object (%s).', $exception->getMessage() ),
$file );
$do_write = false;
}
if ( is_array( $object_meta ) && isset( $object_meta['etag'] ) ) {
$md5_actual = md5( $file_content );
if ( $md5_actual == $object_meta['etag'] ) {
$results[] = $this->_get_result( $local_path,
$remote_path, W3TC_CDN_RESULT_OK,
'Object up-to-date.', $file );
$do_write = false;
}
}
}
if ( $do_write ) {
try {
$this->_api_files->object_create( array(
'container' => $this->_container,
'name' => $remote_path,
'content_type' => Util_Mime::get_mime_type( $local_path ),
'content' => $file_content ) );
$results[] = $this->_get_result( $local_path, $remote_path,
W3TC_CDN_RESULT_OK, 'OK', $file );
} catch ( \Exception $exception ) {
$results[] = $this->_get_result( $local_path, $remote_path,
W3TC_CDN_RESULT_ERROR,
sprintf( 'Unable to create object (%s).', $exception->getMessage() ),
$file );
}
}
}
return !$this->_is_error( $results );
}
/**
* Deletes files from CDN
*
* @param array $files
* @param array $results
* @return boolean
*/
function delete( $files, &$results ) {
foreach ( $files as $file ) {
$local_path = $file['local_path'];
$remote_path = $file['remote_path'];
try {
$this->_api_files->object_delete( $this->_container, $remote_path );
$results[] = $this->_get_result( $local_path, $remote_path,
W3TC_CDN_RESULT_OK, 'OK', $file );
} catch ( \Exception $exception ) {
$results[] = $this->_get_result( $local_path, $remote_path,
W3TC_CDN_RESULT_ERROR,
sprintf( 'Unable to delete object (%s).',
$exception->getMessage() ),
$file );
}
}
return !$this->_is_error( $results );
}
/**
* Test CDN connection
*
* @param string $error
* @return boolean
*/
function test( &$error ) {
$filename = 'test_rscf_' . md5( time() );
try {
$object = $this->_api_files->object_create( array(
'container' => $this->_container,
'name' => $filename,
'content_type' => 'text/plain',
'content' => $filename ) );
} catch ( \Exception $exception ) {
$error = sprintf( 'Unable to write object (%s).', $exception->getMessage() );
return false;
}
$result = true;
try {
$r = wp_remote_get( 'http://' . $this->get_host_http() . '/' . $filename );
if ( $r['body'] != $filename ) {
$error = 'Failed to retrieve object after storing.';
$result = false;
}
} catch ( \Exception $exception ) {
$error = sprintf( 'Unable to read object (%s).', $exception->getMessage() );
$result = false;
}
try {
$this->_api_files->object_delete( $this->_container, $filename );
} catch ( \Exception $exception ) {
$error = sprintf( 'Unable to delete object (%s).', $exception->getMessage() );
$result = false;
}
return $result;
}
/**
* Returns CDN domain
*
* @return array
*/
function get_domains() {
if ( Util_Environment::is_https() ) {
if ( !empty( $this->_config['cname'] ) ) {
return (array) $this->_config['cname'];
}
return array( $this->get_host_https() );
} else {
if ( !empty( $this->_config['cname'] ) ) {
return (array) $this->_config['cname'];
}
return array( $this->get_host_http() );
}
}
/**
* Returns VIA string
*
* @return string
*/
function get_via() {
return sprintf( 'Rackspace Cloud Files: %s', parent::get_via() );
}
public function get_host_http() {
if ( empty( $this->_access_state['host_http'] ) )
$this->_on_new_access_requested();
return $this->_access_state['host_http'];
}
public function get_host_https() {
if ( empty( $this->_access_state['host_https'] ) )
$this->_on_new_access_requested();
return $this->_access_state['host_https'];
}
}