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Linux v11800 5.3.0-1023-aws #25~18.04.1-Ubuntu SMP Fri Jun 5 15:19:18 UTC 2020 aarch64
|
| Current File : /storage/v11800/affypharma/public_html/wp-content/plugins/w3-total-cache/CdnEngine_CloudFront.php |
<?php
namespace W3TC;
if ( !defined( 'W3TC_SKIPLIB_AWS' ) ) {
require_once W3TC_DIR . '/vendor/autoload.php';
}
/**
* Amazon CloudFront (S3 origin) CDN engine
*/
class CdnEngine_CloudFront extends CdnEngine_Base {
private $s3;
private $api;
function __construct( $config = array() ) {
$config = array_merge( array(
'id' => ''
), $config );
parent::__construct( $config );
$this->s3 = new CdnEngine_S3( $config );
}
/**
* Initialize.
*
* @see Cdn_Core::get_region_id()
*/
public function _init() {
if ( ! is_null( $this->api ) ) {
return;
}
if ( empty( $this->_config['key'] ) && empty( $this->_config['secret'] ) ) {
$credentials = \Aws\Credentials\CredentialProvider::defaultProvider();
} else {
$credentials = new \Aws\Credentials\Credentials(
$this->_config['key'],
$this->_config['secret']
);
}
$this->api = new \Aws\CloudFront\CloudFrontClient(
array(
'credentials' => $credentials,
'region' => Cdn_Core::get_region_id( $this->_config['bucket_location'] ),
'version' => '2018-11-05',
)
);
return true;
}
/**
* 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;
}
/**
* Upload files
*
* @param array $files
* @param array $results
* @param boolean $force_rewrite
* @return boolean
*/
function upload( $files, &$results, $force_rewrite = false,
$timeout_time = NULL ) {
return $this->s3->upload( $files, $results, $force_rewrite,
$timeout_time );
}
/**
* Delete files from CDN
*
* @param array $files
* @param array $results
* @return boolean
*/
function delete( $files, &$results ) {
return $this->s3->delete( $files, $results );
}
/**
* Purge files from CDN
*
* @param array $files
* @param array $results
* @return boolean
*/
function purge( $files, &$results ) {
if ( !$this->s3->upload( $files, $results, true ) ) {
return false;
}
try {
$this->_init();
$dist = $this->_get_distribution();
} catch ( \Exception $ex ) {
$results = $this->_get_results( $files, W3TC_CDN_RESULT_HALT, $ex->getMessage() );
return false;
}
$paths = array();
foreach ( $files as $file ) {
$remote_file = $file['remote_path'];
$paths[] = '/' . $remote_file;
}
try {
$invalidation = $this->api->createInvalidation( array(
'DistributionId' => $dist['Id'],
'InvalidationBatch' => array(
'CallerReference' => 'w3tc-' . microtime(),
'Paths' => array(
'Items' => $paths,
'Quantity' => count( $paths ),
),
)
)
);
} catch ( \Exception $ex ) {
$results = $this->_get_results( $files, W3TC_CDN_RESULT_HALT,
sprintf( 'Unable to create invalidation batch (%s).',
$ex->getMessage() ) );
return false;
}
$results = $this->_get_results( $files, W3TC_CDN_RESULT_OK, 'OK' );
return true;
}
/**
* Get the S3 bucket region id used for the hostname.
*
* @since 2.7.2
*
* @return string
*/
public function get_region() {
switch ( $this->_config['bucket_location'] ) {
case 'us-east-1':
$region = '';
break;
case 'us-east-1-e':
$region = 'us-east-1.';
break;
default:
$region = $this->_config['bucket_location'] . '.';
break;
}
return $region;
}
/**
* Get the S3 bucket origin hostname.
*
* @see self::get_region()
*
* @return string
*/
public function _get_origin() {
return sprintf( '%1$s.s3.%2$samazonaws.com', $this->_config['bucket'], $this->get_region() );
}
/**
* Returns array of CDN domains
*/
public function get_domains() {
if ( !empty( $this->_config['cname'] ) ) {
return (array) $this->_config['cname'];
} elseif ( !empty( $this->_config['id'] ) ) {
$domain = sprintf( '%s.cloudfront.net', $this->_config['id'] );
return array(
$domain
);
}
return array();
}
/**
* Test CDN connectivity
*/
function test( &$error ) {
$this->_init();
if ( !$this->s3->test( $error ) ) {
return false;
}
/**
* Search active CF distribution
*/
$dists = $this->api->listDistributions();
if ( !isset( $dists['DistributionList']['Items'] ) ) {
$error = 'Unable to list distributions.';
return false;
}
if ( !count( $dists['DistributionList']['Items'] ) ) {
$error = 'No distributions found.';
return false;
}
$dist = $this->_get_distribution( $dists );
if ( $dist["Status"] != 'Deployed' ) {
$error = sprintf( 'Distribution status is not Deployed, but "%s".', $dist["Status"] );
return false;
}
if ( !$dist['Enabled'] ) {
$error = sprintf( 'Distribution for origin "%s" is disabled.', $this->_get_origin() );
return false;
}
if ( !empty( $this->_config['cname'] ) ) {
$domains = (array) $this->_config['cname'];
$cnames = ( isset( $dist['Aliases']['Items'] ) ? (array) $dist['Aliases']['Items'] : array() );
foreach ( $domains as $domain ) {
$_domains = array_map( 'trim', explode( ',', $domain ) );
foreach ( $_domains as $_domain ) {
if ( !in_array( $_domain, $cnames ) ) {
$error = sprintf( 'Domain name %s is not in distribution <acronym title="Canonical Name">CNAME</acronym> list.', $_domain );
return false;
}
}
}
} elseif ( !empty( $this->_config['id'] ) ) {
$domain = $this->get_domain();
if ( $domain != $dist['DomainName'] ) {
$error = sprintf( 'Distribution domain name mismatch (%s != %s).', $domain, $dist['DomainName'] );
return false;
}
}
return true;
}
/**
* Create bucket
*/
function create_container() {
$this->_init();
$this->s3->create_container();
// plugin cant set CNAMEs list since it CloudFront requires
// certificate to be specified associated with it
$cnames = array();
// make distibution
$originDomain = $this->_get_origin();
try {
$result = $this->api->createDistribution(array(
'DistributionConfig' => array(
'CallerReference' => $originDomain,
'Comment' => 'Created by W3-Total-Cache',
'DefaultCacheBehavior' => array(
'AllowedMethods' => array(
'CachedMethods' => array(
'Items' => array( 'HEAD', 'GET' ),
'Quantity' => 2,
),
'Items' => array( 'HEAD', 'GET' ),
'Quantity' => 2,
),
'Compress' => true,
'DefaultTTL' => 86400,
'FieldLevelEncryptionId' => '',
'ForwardedValues' => array(
'Cookies' => array(
'Forward' => 'none',
),
'Headers' => array(
'Quantity' => 0,
),
'QueryString' => false,
'QueryStringCacheKeys' => array(
'Quantity' => 0,
),
),
'LambdaFunctionAssociations' => array( 'Quantity' => 0),
'MinTTL' => 0,
'SmoothStreaming' => false,
'TargetOriginId' => $originDomain,
'TrustedSigners' => array(
'Enabled' => false,
'Quantity' => 0,
),
'ViewerProtocolPolicy' => 'allow-all',
),
'Enabled' => true,
'Origins' => array(
'Items' => array(
array(
'DomainName' => $originDomain,
'Id' => $originDomain,
'OriginPath' => '',
'CustomHeaders' => array( 'Quantity' => 0 ),
'S3OriginConfig' => array(
'OriginAccessIdentity' => ''
),
),
),
'Quantity' => 1,
),
'Aliases' => array(
'Items' => $cnames,
'Quantity' => count( $cnames )
)
)
));
// extract domain dynamic part stored later in a config
$domain = $result['Distribution']['DomainName'];
$container_id = '';
if ( preg_match( '~^(.+)\.cloudfront\.net$~', $domain, $matches ) ) {
$container_id = $matches[1];
}
return $container_id;
} catch ( \Exception $ex ) {
throw new \Exception( sprintf(
'Unable to create distribution for origin %s: %s', $originDomain,
$ex->getMessage() ) );
}
}
/**
* Returns via string
*
* @return string
*/
function get_via() {
$domain = $this->get_domain();
$via = ( $domain ? $domain : 'N/A' );
return sprintf( 'Amazon Web Services: CloudFront: %s', $via );
}
private function _get_distribution( $dists = null ) {
if ( is_null( $dists ) ) {
$dists = $this->api->listDistributions();
}
if ( !isset( $dists['DistributionList']['Items'] ) ||
!count( $dists['DistributionList']['Items'] ) ) {
throw new \Exception( 'No distributions found.' );
}
$dist = false;
$origin = $this->_get_origin();
$items = $dists['DistributionList']['Items'];
foreach ( $items as $dist ) {
if ( isset( $dist['Origins']['Items'] ) ) {
foreach ( $dist['Origins']['Items'] as $o ) {
if ( isset( $o['DomainName'] ) && $o['DomainName'] == $origin ) {
return $dist;
}
}
}
}
throw new \Exception( sprintf( 'Distribution for origin "%s" not found.', $origin ) );
}
}