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<?php
/**
* File: Cdn_Core.php
*
* @package W3TC
*/
namespace W3TC;
/**
* Class: Cdn_Core
*/
class Cdn_Core {
/**
* Config.
*
* @var Config
*/
private $_config = null;
/**
* Debug.
*
* @var bool
*/
private $debug;
/**
* Constructor
*/
public function __construct() {
$this->_config = Dispatcher::config();
$this->debug = $this->_config->get_boolean( 'cdn.debug' );
}
/**
* Adds file to queue.
*
* @param string $local_path Local path.
* @param string $remote_path Remote path.
* @param int $command Command number.
* @param string $last_error Last error.
* @return int
*/
public function queue_add( $local_path, $remote_path, $command, $last_error ) {
global $wpdb;
$table = $wpdb->base_prefix . W3TC_CDN_TABLE_QUEUE;
$rows = $wpdb->get_results(
$wpdb->prepare(
'SELECT id, command FROM ' . $table . ' WHERE local_path = %s AND remote_path = %s', // phpcs:ignore WordPress.DB.PreparedSQL.NotPrepared
$local_path,
$remote_path
)
);
$already_exists = false;
foreach ( $rows as $row ) {
if ( $row->command != $command ) {
$wpdb->query(
$wpdb->prepare(
'DELETE FROM ' . $table . ' WHERE id = %d', // phpcs:ignore WordPress.DB.PreparedSQL.NotPrepared
$row->id
)
);
} else {
$already_exists = true;
}
}
if ( $already_exists ) {
return true;
}
// Insert if not yet there.
return $wpdb->query(
$wpdb->prepare(
'INSERT INTO ' . $table . ' (local_path, remote_path, command, last_error, date) VALUES (%s, %s, %d, %s, NOW())', // phpcs:ignore WordPress.DB.PreparedSQL.NotPrepared
$local_path,
$remote_path,
$command,
$last_error
)
);
}
/**
* Returns array of array('local_path' => '', 'remote_path' => '') for specified file.
*
* @param string $file File.
* @return array
*/
public function get_files_for_upload( $file ) {
$files = array();
$upload_info = Util_Http::upload_info();
if ( $upload_info ) {
$file = $this->normalize_attachment_file( $file );
$local_file = $upload_info['basedir'] . '/' . $file;
$parsed = parse_url( rtrim( $upload_info['baseurl'], '/' ) . '/' . $file );
$local_uri = $parsed['path'];
$remote_uri = $this->uri_to_cdn_uri( $local_uri );
$remote_file = ltrim( $remote_uri, '/' );
$files[] = $this->build_file_descriptor( $local_file, $remote_file );
}
return $files;
}
/**
* Returns array of files from sizes array.
*
* @param string $attached_file Attached file.
* @param array $sizes Sizes.
* @return array
*/
public function _get_sizes_files( $attached_file, $sizes ) {
$files = array();
$base_dir = Util_File::dirname( $attached_file );
foreach ( (array) $sizes as $size ) {
if ( isset( $size['file'] ) ) {
if ( $base_dir ) {
$file = $base_dir . '/' . $size['file'];
} else {
$file = $size['file'];
}
$files = array_merge( $files, $this->get_files_for_upload( $file ) );
}
}
return $files;
}
/**
* Returns attachment files by metadata.
*
* @param array $metadata Metadata.
* @return array
*/
public function get_metadata_files( $metadata ) {
$files = array();
if ( isset( $metadata['file'] ) && isset( $metadata['sizes'] ) ) {
$files = array_merge( $files, $this->_get_sizes_files( $metadata['file'], $metadata['sizes'] ) );
}
return $files;
}
/**
* Returns attachment files by attachment id.
*
* @param int $attachment_id Attachment id.
* @return array
*/
public function get_attachment_files( $attachment_id ) {
$files = array();
// Get attached file.
$attached_file = get_post_meta( $attachment_id, '_wp_attached_file', true );
if ( ! empty( $attached_file ) ) {
$files = array_merge( $files, $this->get_files_for_upload( $attached_file ) );
// Get backup sizes files.
$attachment_backup_sizes = get_post_meta( $attachment_id, '_wp_attachment_backup_sizes', true );
if ( is_array( $attachment_backup_sizes ) ) {
$files = array_merge( $files, $this->_get_sizes_files( $attached_file, $attachment_backup_sizes ) );
}
}
// Get files from metadata.
$attachment_metadata = get_post_meta( $attachment_id, '_wp_attachment_metadata', true );
if ( is_array( $attachment_metadata ) ) {
$files = array_merge( $files, $this->get_metadata_files( $attachment_metadata ) );
}
return $files;
}
/**
* Uploads files to CDN.
*
* @param array $files Files.
* @param bool $queue_failed Is queue failed.
* @param array $results Results.
* @param int $timeout_time Timeout time.
* @return bool
*/
public function upload( $files, $queue_failed, &$results, $timeout_time = null ) {
if ( $this->debug ) {
Util_Debug::log( 'cdn', 'upload: ' . json_encode( $files, JSON_PRETTY_PRINT ) );
}
$cdn = $this->get_cdn();
$force_rewrite = $this->_config->get_boolean( 'cdn.force.rewrite' );
@set_time_limit( $this->_config->get_integer( 'timelimit.cdn_upload' ) );
$engine = $this->_config->get_string( 'cdn.engine' );
$return = $cdn->upload( $files, $results, $force_rewrite, $timeout_time );
if ( ! $return && $queue_failed ) {
foreach ( $results as $result ) {
if ( W3TC_CDN_RESULT_OK !== $result['result'] ) {
$this->queue_add( $result['local_path'], $result['remote_path'], W3TC_CDN_COMMAND_UPLOAD, $result['error'] );
}
}
}
return $return;
}
/**
* Deletes files from CDN.
*
* @param array $files Files.
* @param bool $queue_failed Is queue failed.
* @param array $results Results.
* @return bool
*/
public function delete( $files, $queue_failed, &$results ) {
$cdn = $this->get_cdn();
@set_time_limit( $this->_config->get_integer( 'timelimit.cdn_delete' ) );
$return = $cdn->delete( $files, $results );
if ( $this->debug ) {
Util_Debug::log( 'cdn', 'delete: ' . json_encode( $files, JSON_PRETTY_PRINT ) );
}
if ( ! $return && $queue_failed ) {
foreach ( $results as $result ) {
if ( W3TC_CDN_RESULT_OK !== $result['result'] ) {
$this->queue_add( $result['local_path'], $result['remote_path'], W3TC_CDN_COMMAND_DELETE, $result['error'] );
}
}
}
return $return;
}
/**
* Purges files from CDN.
*
* @param array $files Files; consisting of array( 'local_path'=>'', 'remote_path'=>'' ).
* @param array $results Results.
* @return bool
*/
public function purge( $files, &$results ) {
if ( $this->debug ) {
Util_Debug::log( 'cdn', 'purge: ' . json_encode( $files, JSON_PRETTY_PRINT ) );
}
/**
* Purge varnish servers before mirror purging.
*/
if ( Cdn_Util::is_engine_mirror( $this->_config->get_string( 'cdn.engine' ) ) && $this->_config->get_boolean( 'varnish.enabled' ) ) {
$varnish = Dispatcher::component( 'Varnish_Flush' );
foreach ( $files as $file ) {
$remote_path = $file['remote_path'];
$varnish->flush_url( network_site_url( $remote_path ) );
}
}
/**
* Purge CDN.
*/
$cdn = $this->get_cdn();
@set_time_limit( $this->_config->get_integer( 'timelimit.cdn_purge' ) );
$return = $cdn->purge( $files, $results );
if ( ! $return ) {
foreach ( $results as $result ) {
if ( W3TC_CDN_RESULT_OK !== $result['result'] ) {
$this->queue_add( $result['local_path'], $result['remote_path'], W3TC_CDN_COMMAND_PURGE, $result['error'] );
}
}
}
return $return;
}
/**
* Purge CDN completely.
*
* @param unknown $results Results of the purge.
* @return mixed
*/
public function purge_all( &$results ) {
$cdn = $this->get_cdn();
@set_time_limit( $this->_config->get_integer( 'timelimit.cdn_purge' ) );
return $cdn->purge_all( $results );
}
/**
* Queues file upload.
*
* Links wp_cron call to do that by the end of request processing.
*
* @param string $url Url.
* @return void
*/
public function queue_upload_url( $url ) {
$docroot_filename = Util_Environment::url_to_docroot_filename( $url );
if ( is_null( $docroot_filename ) ) {
return;
}
$filename = Util_Environment::docroot_to_full_filename( $docroot_filename );
$a = \parse_url( $url );
$remote_filename = $this->uri_to_cdn_uri( $a['path'] );
$this->queue_add( $filename, $remote_filename, W3TC_CDN_COMMAND_UPLOAD, 'Pending' );
}
/**
* Normalizes attachment file.
*
* @param string $file Filename.
* @return string
*/
public function normalize_attachment_file( $file ) {
$upload_info = Util_Http::upload_info();
if ( $upload_info ) {
$file = ltrim( str_replace( $upload_info['basedir'], '', $file ), '/\\' );
$matches = null;
if ( preg_match( '~(\d{4}/\d{2}/)?[^/]+$~', $file, $matches ) ) {
$file = $matches[0];
}
}
return $file;
}
/**
* Returns CDN object.
*/
public function get_cdn() {
static $cdn = null;
if ( is_null( $cdn ) ) {
$c = $this->_config;
$engine = $c->get_string( 'cdn.engine' );
$compression = ( $c->get_boolean( 'browsercache.enabled' ) && $c->get_boolean( 'browsercache.html.compression' ) );
switch ( $engine ) {
case 'akamai':
$engine_config = array(
'username' => $c->get_string( 'cdn.akamai.username' ),
'password' => $c->get_string( 'cdn.akamai.password' ),
'zone' => $c->get_string( 'cdn.akamai.zone' ),
'domain' => $c->get_array( 'cdn.akamai.domain' ),
'ssl' => $c->get_string( 'cdn.akamai.ssl' ),
'email_notification' => $c->get_array( 'cdn.akamai.email_notification' ),
'compression' => false,
);
break;
case 'att':
$engine_config = array(
'account' => $c->get_string( 'cdn.att.account' ),
'token' => $c->get_string( 'cdn.att.token' ),
'domain' => $c->get_array( 'cdn.att.domain' ),
'ssl' => $c->get_string( 'cdn.att.ssl' ),
'compression' => false,
);
break;
case 'azure':
$engine_config = array(
'user' => $c->get_string( 'cdn.azure.user' ),
'key' => $c->get_string( 'cdn.azure.key' ),
'container' => $c->get_string( 'cdn.azure.container' ),
'cname' => $c->get_array( 'cdn.azure.cname' ),
'ssl' => $c->get_string( 'cdn.azure.ssl' ),
'compression' => false,
);
break;
case 'cf':
$engine_config = array(
'key' => $c->get_string( 'cdn.cf.key' ),
'secret' => $c->get_string( 'cdn.cf.secret' ),
'bucket' => $c->get_string( 'cdn.cf.bucket' ),
'bucket_location' => self::get_region_id( $c->get_string( 'cdn.cf.bucket.location' ) ),
'id' => $c->get_string( 'cdn.cf.id' ),
'cname' => $c->get_array( 'cdn.cf.cname' ),
'ssl' => $c->get_string( 'cdn.cf.ssl' ),
'public_objects' => $c->get_string( 'cdn.cf.public_objects' ),
'compression' => $compression,
);
break;
case 'cf2':
$engine_config = array(
'key' => $c->get_string( 'cdn.cf2.key' ),
'secret' => $c->get_string( 'cdn.cf2.secret' ),
'id' => $c->get_string( 'cdn.cf2.id' ),
'cname' => $c->get_array( 'cdn.cf2.cname' ),
'ssl' => $c->get_string( 'cdn.cf2.ssl' ),
'compression' => false,
);
break;
case 'cotendo':
$engine_config = array(
'username' => $c->get_string( 'cdn.cotendo.username' ),
'password' => $c->get_string( 'cdn.cotendo.password' ),
'zones' => $c->get_array( 'cdn.cotendo.zones' ),
'domain' => $c->get_array( 'cdn.cotendo.domain' ),
'ssl' => $c->get_string( 'cdn.cotendo.ssl' ),
'compression' => false,
);
break;
case 'edgecast':
$engine_config = array(
'account' => $c->get_string( 'cdn.edgecast.account' ),
'token' => $c->get_string( 'cdn.edgecast.token' ),
'domain' => $c->get_array( 'cdn.edgecast.domain' ),
'ssl' => $c->get_string( 'cdn.edgecast.ssl' ),
'compression' => false,
);
break;
case 'ftp':
$engine_config = array(
'host' => $c->get_string( 'cdn.ftp.host' ),
'type' => $c->get_string( 'cdn.ftp.type' ),
'user' => $c->get_string( 'cdn.ftp.user' ),
'pass' => $c->get_string( 'cdn.ftp.pass' ),
'path' => $c->get_string( 'cdn.ftp.path' ),
'pasv' => $c->get_boolean( 'cdn.ftp.pasv' ),
'domain' => $c->get_array( 'cdn.ftp.domain' ),
'ssl' => $c->get_string( 'cdn.ftp.ssl' ),
'compression' => false,
'docroot' => Util_Environment::document_root(),
);
break;
case 'google_drive':
$state = Dispatcher::config_state();
$engine_config = array(
'client_id' => $c->get_string( 'cdn.google_drive.client_id' ),
'access_token' => $state->get_string( 'cdn.google_drive.access_token' ),
'refresh_token' => $c->get_string( 'cdn.google_drive.refresh_token' ),
'root_url' => $c->get_string( 'cdn.google_drive.folder.url' ),
'root_folder_id' => $c->get_string( 'cdn.google_drive.folder.id' ),
'new_access_token_callback' => array( $this, 'on_google_drive_new_access_token' ),
);
break;
case 'highwinds':
$state = Dispatcher::config_state();
$engine_config = array(
'domains' => $c->get_array( 'cdn.highwinds.host.domains' ),
'ssl' => $c->get_string( 'cdn.highwinds.ssl' ),
'api_token' => $c->get_string( 'cdn.highwinds.api_token' ),
'account_hash' => $c->get_string( 'cdn.highwinds.account_hash' ),
'host_hash_code' => $c->get_string( 'cdn.highwinds.host.hash_code' ),
);
break;
case 'limelight':
$engine_config = array(
'short_name' => $c->get_string( 'cdn.limelight.short_name' ),
'username' => $c->get_string( 'cdn.limelight.username' ),
'api_key' => $c->get_string( 'cdn.limelight.api_key' ),
'domains' => $c->get_array( 'cdn.limelight.host.domains' ),
'debug' => $c->get_string( 'cdn.debug' ),
);
break;
case 'mirror':
$engine_config = array(
'domain' => $c->get_array( 'cdn.mirror.domain' ),
'ssl' => $c->get_string( 'cdn.mirror.ssl' ),
'compression' => false,
);
break;
case 'rackspace_cdn':
$state = Dispatcher::config_state();
$engine_config = array(
'user_name' => $c->get_string( 'cdn.rackspace_cdn.user_name' ),
'api_key' => $c->get_string( 'cdn.rackspace_cdn.api_key' ),
'region' => $c->get_string( 'cdn.rackspace_cdn.region' ),
'service_access_url' => $c->get_string( 'cdn.rackspace_cdn.service.access_url' ),
'service_id' => $c->get_string( 'cdn.rackspace_cdn.service.id' ),
'service_protocol' => $c->get_string( 'cdn.rackspace_cdn.service.protocol' ),
'domains' => $c->get_array( 'cdn.rackspace_cdn.domains' ),
'access_state' => $state->get_string( 'cdn.rackspace_cdn.access_state' ),
'new_access_state_callback' => array( $this, 'on_rackspace_cdn_new_access_state' ),
);
break;
case 'rscf':
$state = Dispatcher::config_state();
$engine_config = array(
'user_name' => $c->get_string( 'cdn.rscf.user' ),
'api_key' => $c->get_string( 'cdn.rscf.key' ),
'region' => $c->get_string( 'cdn.rscf.location' ),
'container' => $c->get_string( 'cdn.rscf.container' ),
'cname' => $c->get_array( 'cdn.rscf.cname' ),
'ssl' => $c->get_string( 'cdn.rscf.ssl' ),
'compression' => false,
'access_state' => $state->get_string( 'cdn.rackspace_cf.access_state' ),
'new_access_state_callback' => array( $this, 'on_rackspace_cf_new_access_state' ),
);
break;
case 's3':
$engine_config = array(
'key' => $c->get_string( 'cdn.s3.key' ),
'secret' => $c->get_string( 'cdn.s3.secret' ),
'bucket' => $c->get_string( 'cdn.s3.bucket' ),
'bucket_location' => self::get_region_id( $c->get_string( 'cdn.s3.bucket.location' ) ),
'cname' => $c->get_array( 'cdn.s3.cname' ),
'ssl' => $c->get_string( 'cdn.s3.ssl' ),
'public_objects' => $c->get_string( 'cdn.s3.public_objects' ),
'compression' => $compression,
);
break;
case 's3_compatible':
$engine_config = array(
'key' => $c->get_string( 'cdn.s3.key' ),
'secret' => $c->get_string( 'cdn.s3.secret' ),
'bucket' => $c->get_string( 'cdn.s3.bucket' ),
'cname' => $c->get_array( 'cdn.s3.cname' ),
'ssl' => $c->get_string( 'cdn.s3.ssl' ),
'compression' => $compression,
'api_host' => $c->get_string( 'cdn.s3_compatible.api_host' ),
);
break;
case 'stackpath':
$engine_config = array(
'authorization_key' => $c->get_string( 'cdn.stackpath.authorization_key' ),
'zone_id' => $c->get_integer( 'cdn.stackpath.zone_id' ),
'domain' => $c->get_array( 'cdn.stackpath.domain' ),
'ssl' => $c->get_string( 'cdn.stackpath.ssl' ),
'compression' => false,
);
break;
case 'stackpath2':
$state = Dispatcher::config_state();
$engine_config = array(
'client_id' => $c->get_string( 'cdn.stackpath2.client_id' ),
'client_secret' => $c->get_string( 'cdn.stackpath2.client_secret' ),
'stack_id' => $c->get_string( 'cdn.stackpath2.stack_id' ),
'site_root_domain' => $c->get_string( 'cdn.stackpath2.site_root_domain' ),
'domain' => $c->get_array( 'cdn.stackpath2.domain' ),
'ssl' => $c->get_string( 'cdn.stackpath2.ssl' ),
'access_token' => $state->get_string( 'cdn.stackpath2.access_token' ),
'on_new_access_token' => array( $this, 'on_stackpath2_new_access_token' ),
);
break;
case 'bunnycdn':
$engine_config = array(
'account_api_key' => $c->get_string( 'cdn.bunnycdn.account_api_key' ),
'storage_api_key' => $c->get_string( 'cdn.bunnycdn.storage_api_key' ),
'stream_api_key' => $c->get_string( 'cdn.bunnycdn.stream_api_key' ),
'pull_zone_id' => $c->get_integer( 'cdn.bunnycdn.pull_zone_id' ),
'domain' => $c->get_string( 'cdn.bunnycdn.cdn_hostname' ),
);
break;
default:
$engine_config = array();
break;
}
$engine_config = array_merge(
$engine_config,
array(
'debug' => $c->get_boolean( 'cdn.debug' ),
'headers' => apply_filters( 'w3tc_cdn_config_headers', array() ),
)
);
$cdn = CdnEngine::instance( $engine, $engine_config );
}
return $cdn;
}
/**
* Called when a new access token is issued by cdnengine.
*
* @param string $access_token Access token.
*/
public function on_google_drive_new_access_token( $access_token ) {
$state = Dispatcher::config_state();
$state->set( 'cdn.google_drive.access_token', $access_token );
$state->save();
}
/**
* Called when a new access state is issued by cdnengine
*
* @param string $access_state Access state.
*/
public function on_rackspace_cdn_new_access_state( $access_state ) {
$state = Dispatcher::config_state();
$state->set( 'cdn.rackspace_cdn.access_state', $access_state );
$state->save();
}
/**
* Called when a new access state is issued by cdnengine
*
* @param string $access_state Access state.
*/
public function on_rackspace_cf_new_access_state( $access_state ) {
$state = Dispatcher::config_state();
$state->set( 'cdn.rackspace_cf.access_state', $access_state );
$state->save();
}
/**
* Called when a new access token is issued by cdnengine.
*
* @param string $access_token Access token.
*/
public function on_stackpath2_new_access_token( $access_token ) {
$state = Dispatcher::config_state();
$state->set( 'cdn.stackpath2.access_token', $access_token );
$state->save();
}
/**
* Convert relative file which is relative to ABSPATH (wp folder on disc) to path uri.
*
* @param string $file Filename.
* @return string
*/
public function docroot_filename_to_uri( $file ) {
$file = ltrim( $file, '/' );
// Translate multisite subsite uploads paths.
return str_replace( basename( WP_CONTENT_DIR ) . '/blogs.dir/' . Util_Environment::blog_id() . '/', '', $file );
}
/**
* Convert a relative path (relative to ABSPATH (wp folder on disc) into a absolute path.
*
* @param string $file Filename.
* @return string
*/
public function docroot_filename_to_absolute_path( $file ) {
if ( is_file( $file ) ) {
return $file;
}
if ( DIRECTORY_SEPARATOR != '/' ) {
$file = str_replace( '/', DIRECTORY_SEPARATOR, $file );
}
return rtrim( Util_Environment::document_root(), '/\\' ) . DIRECTORY_SEPARATOR . ltrim( $file, '/\\' );
}
/**
* Convert local uri path to CDN type specific path.
*
* @param string $local_uri Local URI.
* @return string
*/
public function uri_to_cdn_uri( $local_uri ) {
$local_uri = ltrim( $local_uri, '/' );
$remote_uri = $local_uri;
if ( Util_Environment::is_wpmu() && defined( 'DOMAIN_MAPPING' ) && DOMAIN_MAPPING ) {
$remote_uri = str_replace( site_url(), '', $local_uri );
}
$engine = $this->_config->get_string( 'cdn.engine' );
if ( Cdn_Util::is_engine_mirror( $engine ) ) {
if ( Util_Environment::is_wpmu() && strpos( $local_uri, 'files' ) === 0 ) {
$upload_dir = Util_Environment::wp_upload_dir();
$remote_uri = $this->abspath_to_relative_path( dirname( $upload_dir['basedir'] ) ) . '/' . $local_uri;
}
} elseif ( Util_Environment::is_wpmu() &&
! Util_Environment::is_wpmu_subdomain() &&
Util_Environment::is_using_master_config() &&
Cdn_Util::is_engine_push( $engine ) ) {
/**
* In common config mode files are uploaded for network home url so mirror will not contain /subblog/ path in uri.
* Since upload process is not blog-specific and wp-content/plugins/../*.jpg files are common.
*/
$home = trim( home_url( '', 'relative' ), '/' ) . '/';
$network_home = trim( network_home_url( '', 'relative' ), '/' ) . '/';
if ( $home !== $network_home && substr( $local_uri, 0, strlen( $home ) ) === $home ) {
$remote_uri = $network_home . substr( $local_uri, strlen( $home ) );
}
}
return apply_filters( 'w3tc_uri_cdn_uri', ltrim( $remote_uri, '/' ) );
}
/**
* Need to pass full URL and it's URI.
* URI passed to prevent redundant parsing, normally it's available for caller.
*
* @param string $url URL.
* @param string $path Path.
* @return string|null
**/
public function url_to_cdn_url( $url, $path ) {
$cdn = $this->get_cdn();
$remote_path = $this->uri_to_cdn_uri( $path );
$new_url = $cdn->format_url( $remote_path );
if ( ! $new_url ) {
return null;
}
$is_engine_mirror = Cdn_Util::is_engine_mirror( $this->_config->get_string( 'cdn.engine' ) );
$new_url = apply_filters( 'w3tc_cdn_url', $new_url, $url, $is_engine_mirror );
return $new_url;
}
/**
* Takes an absolute path and converts to a relative path to root.
*
* @param string $path Path.
* @return mixed
*/
public function abspath_to_relative_path( $path ) {
return str_replace( Util_Environment::document_root(), '', $path );
}
/**
* Takes a root relative path and converts to a full URI.
*
* @param string $path Path.
* @return string
*/
public function relative_path_to_url( $path ) {
return rtrim( Util_Environment::home_domain_root_url(), '/' ) . '/' .
$this->docroot_filename_to_uri( ltrim( $path, '/' ) );
}
/**
* Constructs a CDN file descriptor.
*
* @param string $local_path Local path.
* @param string $remote_path Remote path.
* @return array
*/
public function build_file_descriptor( $local_path, $remote_path ) {
$file = array(
'local_path' => $local_path,
'remote_path' => $remote_path,
'original_url' => $this->relative_path_to_url( $local_path ),
);
return apply_filters( 'w3tc_build_cdn_file_array', $file );
}
/**
* Get the S3 bucket region ID.
*
* @since 2.7.2
* @static
*
* @param string $bucket_location S3 bucket location.
* @return string
*/
public static function get_region_id( $bucket_location ) {
switch ( $bucket_location ) {
case 'us-east-1-e':
$region = 'us-east-1';
break;
default:
$region = $bucket_location;
break;
}
return $region;
}
}