AlkantarClanX12
Your IP : 18.224.52.54
<?php
namespace W3TC;
if ( !defined( 'W3TC_SKIPLIB_AWS' ) ) {
require_once W3TC_DIR . '/vendor/autoload.php';
}
/**
* CDN engine for S3 push type
*/
class CdnEngine_S3 extends CdnEngine_Base {
private $api;
/**
* Regions list.
*
* @see Cdn_Core::get_region_id()
* @link https://docs.aws.amazon.com/general/latest/gr/rande.html
*
* @return array
*/
public static function regions_list() {
return array(
'us-east-1' => __( 'US East (N. Virginia) (default)', 'w3-total-cache' ), // Default; region not included in hostnmae.
'us-east-1-e' => __( 'US East (N. Virginia) (long hostname)', 'w3-total-cache' ), // Explicitly included in hostname.
'us-east-2' => __( 'US East (Ohio)', 'w3-total-cache' ),
'us-west-1' => __( 'US West (N. California)', 'w3-total-cache' ),
'us-west-2' => __( 'US West (Oregon)', 'w3-total-cache' ),
'af-south-1' => __( 'Africa (Cape Town)', 'w3-total-cache' ),
'ap-east-1' => __( 'Asia Pacific (Hong Kong)', 'w3-total-cache' ),
'ap-northeast-1' => __( 'Asia Pacific (Tokyo)', 'w3-total-cache' ),
'ap-northeast-2' => __( 'Asia Pacific (Seoul)', 'w3-total-cache' ),
'ap-northeast-3' => __( 'Asia Pacific (Osaka-Local)', 'w3-total-cache' ),
'ap-south-1' => __( 'Asia Pacific (Mumbai)', 'w3-total-cache' ),
'ap-southeast-1' => __( 'Asia Pacific (Singapore)', 'w3-total-cache' ),
'ap-southeast-2' => __( 'Asia Pacific (Sydney)', 'w3-total-cache' ),
'ca-central-1' => __( 'Canada (Central)', 'w3-total-cache' ),
'cn-north-1' => __( 'China (Beijing)', 'w3-total-cache' ),
'cn-northwest-1' => __( 'China (Ningxia)', 'w3-total-cache' ),
'eu-central-1' => __( 'Europe (Frankfurt)', 'w3-total-cache' ),
'eu-north-1' => __( 'Europe (Stockholm)', 'w3-total-cache' ),
'eu-south-1' => __( 'Europe (Milan)', 'w3-total-cache' ),
'eu-west-1' => __( 'Europe (Ireland)', 'w3-total-cache' ),
'eu-west-2' => __( 'Europe (London)', 'w3-total-cache' ),
'eu-west-3' => __( 'Europe (Paris)', 'w3-total-cache' ),
'me-south-1' => __( 'Middle East (Bahrain)', 'w3-total-cache' ),
'sa-east-1' => __( 'South America (São Paulo)', 'w3-total-cache' ),
);
}
public function __construct( $config = array() ) {
$config = array_merge( array(
'key' => '',
'secret' => '',
'bucket' => '',
'bucket_location' => '',
'cname' => array(),
), $config );
$config['bucket_location'] = Cdn_Core::get_region_id( $config['bucket_location'] );
parent::__construct( $config );
}
/**
* 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;
}
/**
* Inits S3 object
*
* @see Cdn_Core::get_region_id()
*
* @return bool
* @throws \Exception Exception.
*/
public function _init() {
if ( ! is_null( $this->api ) ) {
return;
}
if ( empty( $this->_config['bucket'] ) ) {
throw new \Exception( 'Empty bucket.' );
}
if ( empty( $this->_config['key'] ) && empty( $this->_config['secret'] ) ) {
$credentials = \Aws\Credentials\CredentialProvider::defaultProvider();
} else {
if ( empty( $this->_config['key'] ) ) {
throw new \Exception( 'Empty access key.' );
}
if ( empty( $this->_config['secret'] ) ) {
throw new \Exception( 'Empty secret key.' );
}
$credentials = new \Aws\Credentials\Credentials(
$this->_config['key'],
$this->_config['secret']
);
}
if ( isset( $this->_config['public_objects'] ) && 'enabled' === $this->_config['public_objects'] ) {
$this->_config['s3_acl'] = 'public-read';
}
$this->api = new \Aws\S3\S3Client(
array(
'credentials' => $credentials,
'region' => Cdn_Core::get_region_id( $this->_config['bucket_location'] ),
'version' => '2006-03-01',
'use_arn_region' => true,
)
);
}
/**
* Uploads files to S3
*
* @param array $files
* @param array $results
* @param boolean $force_rewrite
* @return boolean
*/
public function upload( $files, &$results, $force_rewrite = false,
$timeout_time = NULL ) {
$error = null;
try {
$this->_init();
} catch ( \Exception $ex ) {
$results = $this->_get_results( $files, W3TC_CDN_RESULT_HALT, $ex->getMessage() );
return false;
}
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';
}
}
$results[] = $this->_upload( $file, $force_rewrite );
if ( $this->_config['compression'] && $this->_may_gzip( $remote_path ) ) {
$file['remote_path_gzip'] = $remote_path . $this->_gzip_extension;
$results[] = $this->_upload_gzip( $file, $force_rewrite );
}
}
return !$this->_is_error( $results );
}
/**
* Uploads single file to S3
*
* @param array CDN file array
* @param boolean $force_rewrite
* @return array
*/
private function _upload( $file, $force_rewrite = false ) {
$local_path = $file['local_path'];
$remote_path = $file['remote_path'];
if ( !file_exists( $local_path ) ) {
return $this->_get_result( $local_path, $remote_path,
W3TC_CDN_RESULT_ERROR, 'Source file not found.', $file );
}
try {
if ( !$force_rewrite ) {
try {
$info = $this->api->headObject( array(
'Bucket' => $this->_config['bucket'],
'Key' => $remote_path )
);
$hash = '"' . @md5_file( $local_path ) . '"';
$s3_hash = ( isset( $info['ETag'] ) ? $info['ETag'] : '' );
if ( $hash === $s3_hash ) {
return $this->_get_result( $local_path, $remote_path,
W3TC_CDN_RESULT_OK, 'Object up-to-date.', $file );
}
} catch ( \Aws\Exception\AwsException $ex ) {
if ( $ex->getAwsErrorCode() == 'NotFound' ) {
} else {
throw $ex;
}
}
}
$headers = $this->get_headers_for_file( $file );
$result = $this->_put_object( array(
'Key' => $remote_path,
'SourceFile' => $local_path,
), $headers
);
return $this->_get_result( $local_path, $remote_path,
W3TC_CDN_RESULT_OK, 'OK', $file );
} catch ( \Exception $ex ) {
$error = sprintf( 'Unable to put object (%s).', $ex->getMessage() );
return $this->_get_result( $local_path, $remote_path,
W3TC_CDN_RESULT_ERROR, $error, $file );
}
}
/**
* Uploads gzip version of file
*/
private function _upload_gzip( $file, $force_rewrite = false ) {
$local_path = $file['local_path'];
$remote_path = $file['remote_path_gzip'];
if ( !function_exists( 'gzencode' ) ) {
return $this->_get_result( $local_path, $remote_path,
W3TC_CDN_RESULT_ERROR, "GZIP library doesn't exist.", $file );
}
if ( !file_exists( $local_path ) ) {
return $this->_get_result( $local_path, $remote_path,
W3TC_CDN_RESULT_ERROR, 'Source file not found.', $file );
}
$contents = @file_get_contents( $local_path );
if ( $contents === false ) {
return $this->_get_result( $local_path, $remote_path,
W3TC_CDN_RESULT_ERROR, 'Unable to read file.', $file );
}
$data = gzencode( $contents );
try {
if ( !$force_rewrite ) {
try {
$info = $this->api->headObject( array(
'Bucket' => $this->_config['bucket'],
'Key' => $remote_path )
);
$hash = '"' . md5( $data ) . '"';
$s3_hash = ( isset( $info['ETag'] ) ? $info['ETag'] : '' );
if ( $hash === $s3_hash ) {
return $this->_get_result( $local_path, $remote_path,
W3TC_CDN_RESULT_OK, 'Object up-to-date.', $file );
}
} catch ( \Aws\Exception\AwsException $ex ) {
if ( $ex->getAwsErrorCode() == 'NotFound' ) {
} else {
throw $ex;
}
}
}
$headers = $this->get_headers_for_file( $file );
$headers['Content-Encoding'] = 'gzip';
$result = $this->_put_object( array(
'Key' => $remote_path,
'Body' => $data
), $headers
);
return $this->_get_result( $local_path, $remote_path,
W3TC_CDN_RESULT_OK, 'OK', $file );
} catch ( \Exception $ex ) {
$error = sprintf( 'Unable to put object (%s).', $ex->getMessage() );
return $this->_get_result( $local_path, $remote_path,
W3TC_CDN_RESULT_ERROR, $error, $file );
}
}
/**
* Wrapper to set headers well
*/
private function _put_object( $data, $headers ) {
if ( ! empty( $this->_config['s3_acl'] ) ) {
$data['ACL'] = 'public-read';
}
$data['Bucket'] = $this->_config['bucket'];
$data['ContentType'] = $headers['Content-Type'];
if ( isset( $headers['Content-Encoding'] ) ) {
$data['ContentEncoding'] = $headers['Content-Encoding'];
}
if ( isset( $headers['Cache-Control'] ) ) {
$data['CacheControl'] = $headers['Cache-Control'];
}
return $this->api->putObject( $data );
}
/**
* Deletes files from S3
*
* @param array $files
* @param array $results
* @return boolean
*/
public function delete( $files, &$results ) {
$error = null;
try {
$this->_init();
} catch ( \Exception $ex ) {
$results = $this->_get_results( $files, W3TC_CDN_RESULT_HALT, $ex->getMessage() );
return false;
}
foreach ( $files as $file ) {
$local_path = $file['local_path'];
$remote_path = $file['remote_path'];
try {
$this->api->deleteObject( array(
'Bucket' => $this->_config['bucket'],
'Key' => $remote_path
) );
$results[] = $this->_get_result( $local_path, $remote_path,
W3TC_CDN_RESULT_OK, 'OK', $file );
} catch ( \Exception $ex ) {
$results[] = $this->_get_result( $local_path, $remote_path,
W3TC_CDN_RESULT_ERROR,
sprintf( 'Unable to delete object (%s).',
$ex->getMessage() ),
$file );
}
if ( $this->_config['compression'] ) {
$remote_path_gzip = $remote_path . $this->_gzip_extension;
try {
$this->api->deleteObject( array(
'Bucket' => $this->_config['bucket'],
'Key' => $remote_path_gzip
) );
$results[] = $this->_get_result( $local_path, $remote_path_gzip,
W3TC_CDN_RESULT_OK, 'OK', $file );
} catch ( \Exception $ex ) {
$results[] = $this->_get_result( $local_path, $remote_path_gzip,
W3TC_CDN_RESULT_ERROR,
sprintf( 'Unable to delete object (%s).',
$ex->getMessage() ),
$file );
}
}
}
return !$this->_is_error( $results );
}
/**
* Test CDN connectivity works
*/
public function test( &$error ) {
if ( !parent::test( $error ) ) {
return false;
}
$key = 'test_s3_' . md5( time() );
$this->_init();
$buckets = $this->api->listBuckets();
$bucket_found = false;
foreach ( $buckets['Buckets'] as $bucket ) {
if ( $bucket['Name'] == $this->_config['bucket'] ) {
$bucket_found = true;
}
}
if ( !$bucket_found ) {
throw new \Exception(
sprintf(
// translators: 1: AWS S3 bucket name.
esc_html__( 'Bucket doesn\'t exist: %1$s.', 'w3-total-cache' ),
$this->_config['bucket']
)
);
}
if ( ! empty( $this->_config['s3_acl'] ) ) {
$result = $this->api->putObject(
array(
'ACL' => $this->_config['s3_acl'],
'Bucket' => $this->_config['bucket'],
'Key' => $key,
'Body' => $key
)
);
} else {
$result = $this->api->putObject(
array(
'Bucket' => $this->_config['bucket'],
'Key' => $key,
'Body' => $key
)
);
}
$object = $this->api->getObject( array(
'Bucket' => $this->_config['bucket'],
'Key' => $key
) );
if ( $object['Body'] != $key ) {
$error = 'Objects are not equal.';
$this->api->deleteObject( array(
'Bucket' => $this->_config['bucket'],
'Key' => $key
) );
return false;
}
$this->api->deleteObject( array(
'Bucket' => $this->_config['bucket'],
'Key' => $key
) );
return true;
}
/**
* Returns CDN domain
*
* @return array
*/
public function get_domains() {
if ( !empty( $this->_config['cname'] ) ) {
return (array) $this->_config['cname'];
} elseif ( !empty( $this->_config['bucket'] ) ) {
$domain = sprintf( '%s.s3.amazonaws.com', $this->_config['bucket'] );
return array(
$domain
);
}
return array();
}
/**
* Returns via string
*
* @return string
*/
public function get_via() {
return sprintf( 'Amazon Web Services: S3: %s', parent::get_via() );
}
/**
* Creates bucket
*/
public function create_container() {
$this->_init();
try {
$buckets = $this->api->listBuckets();
} catch ( \Exception $ex ) {
throw new \Exception( 'Unable to list buckets: ' . $ex->getMessage() );
}
foreach ( $buckets['Buckets'] as $bucket ) {
if ( $bucket['Name'] == $this->_config['bucket'] ) {
throw new \Exception( 'Bucket already exists: ' . $this->_config['bucket'] );
}
}
try {
$this->api->createBucket( array(
'Bucket' => $this->_config['bucket'],
) );
$this->api->putBucketCors( array(
'Bucket' => $this->_config['bucket'],
'CORSConfiguration' => array(
'CORSRules' => array(
array(
'AllowedHeaders' => array( '*' ),
'AllowedMethods' => array( 'GET' ),
'AllowedOrigins' => array( '*' )
)
)
)
) );
} catch ( \Exception $e) {
throw new \Exception( 'Failed to create bucket: ' . $ex->getMessage() );
}
}
/**
* How and if headers should be set
*
* @return string W3TC_CDN_HEADER_NONE, W3TC_CDN_HEADER_UPLOADABLE, W3TC_CDN_HEADER_MIRRORING
*/
public function headers_support() {
return W3TC_CDN_HEADER_UPLOADABLE;
}
}