AlkantarClanX12
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<?php
/**
* File: CdnEngine_Azure.php
*
* @package W3TC
*/
namespace W3TC;
use MicrosoftAzure\Storage\Blob\BlobRestProxy;
use MicrosoftAzure\Storage\Common\ServiceException;
/**
* Class: CdnEngine_Azure
*
* Windows Azure Storage CDN engine
*/
class CdnEngine_Azure extends CdnEngine_Base {
/**
* Storage client object
*
* @var \MicrosoftAzure\Storage\Blob\BlobRestProxy
*/
var $_client = null; // phpcs:ignore PSR2.Classes.PropertyDeclaration
/**
* Constructor.
*
* @param array $config Configuration.
*/
public function __construct( $config = array() ) {
$config = array_merge(
array(
'user' => '',
'key' => '',
'container' => '',
'cname' => array(),
),
$config
);
parent::__construct( $config );
// Load the Composer autoloader.
require_once W3TC_DIR . '/vendor/autoload.php';
}
/**
* Inits storage client object
*
* @param string $error Error message.
* @return bool
*/
public function _init( &$error ) {
if ( empty( $this->_config['user'] ) ) {
$error = 'Empty account name.';
return false;
}
if ( empty( $this->_config['key'] ) ) {
$error = 'Empty account key.';
return false;
}
if ( empty( $this->_config['container'] ) ) {
$error = 'Empty container name.';
return false;
}
try {
$this->_client = BlobRestProxy::createBlobService(
'DefaultEndpointsProtocol=https;AccountName=' . $this->_config['user'] . ';AccountKey=' . $this->_config['key']
);
} catch ( \Exception $ex ) {
$error = $ex->getMessage();
return false;
}
return true;
}
/**
* Uploads files to S3
*
* @param array $files
* @param array $results
* @param boolean $force_rewrite
* @return boolean
*/
function upload( $files, &$results, $force_rewrite = false,
$timeout_time = NULL ) {
$error = null;
if ( !$this->_init( $error ) ) {
$results = $this->_get_results( $files, W3TC_CDN_RESULT_HALT, $error );
return false;
}
foreach ( $files as $file ) {
$remote_path = $file['remote_path'];
$local_path = $file['local_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, $force_rewrite );
}
return !$this->_is_error( $results );
}
/**
* Uploads file
*
* @param string $local_path
* @param string $remote_path
* @param bool $force_rewrite
* @return array
*/
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 );
}
$contents = @file_get_contents( $local_path );
$md5 = md5( $contents ); // @md5_file( $local_path );
$content_md5 = $this->_get_content_md5( $md5 );
if ( !$force_rewrite ) {
try {
$propertiesResult = $this->_client->getBlobProperties( $this->_config['container'], $remote_path );
$p = $propertiesResult->getProperties();
$local_size = @filesize( $local_path );
if ( $local_size == $p->getContentLength() && $content_md5 === $p->getContentMD5() ) {
return $this->_get_result( $local_path, $remote_path,
W3TC_CDN_RESULT_OK, 'File up-to-date.', $file );
}
} catch ( \Exception $exception ) {
}
}
$headers = $this->get_headers_for_file( $file );
try {
// $headers
$options = new \MicrosoftAzure\Storage\Blob\Models\CreateBlockBlobOptions();
$options->setContentMD5( $content_md5 );
if ( isset( $headers['Content-Type'] ) )
$options->setContentType( $headers['Content-Type'] );
if ( isset( $headers['Cache-Control'] ) )
$options->setCacheControl( $headers['Cache-Control'] );
$this->_client->createBlockBlob( $this->_config['container'],
$remote_path, $contents, $options );
} catch ( \Exception $exception ) {
return $this->_get_result( $local_path, $remote_path,
W3TC_CDN_RESULT_ERROR,
sprintf( 'Unable to put blob (%s).', $exception->getMessage() ),
$file );
}
return $this->_get_result( $local_path, $remote_path, W3TC_CDN_RESULT_OK,
'OK', $file );
}
/**
* Deletes files from storage
*
* @param array $files
* @param array $results
* @return boolean
*/
function delete( $files, &$results ) {
$error = null;
if ( !$this->_init( $error ) ) {
$results = $this->_get_results( $files, W3TC_CDN_RESULT_HALT, $error );
return false;
}
foreach ( $files as $file ) {
$local_path = $file['local_path'];
$remote_path = $file['remote_path'];
try {
$r = $this->_client->deleteBlob( $this->_config['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 blob (%s).', $exception->getMessage() ),
$file );
}
}
return !$this->_is_error( $results );
}
/**
* Tests S3
*
* @param string $error
* @return boolean
*/
function test( &$error ) {
if ( !parent::test( $error ) ) {
return false;
}
$string = 'test_azure_' . md5( time() );
if ( !$this->_init( $error ) ) {
return false;
}
try {
$containers = $this->_client->listContainers();
} catch ( \Exception $exception ) {
$error = sprintf( 'Unable to list containers (%s).', $exception->getMessage() );
return false;
}
$container = null;
foreach ( $containers->getContainers() as $_container ) {
if ( $_container->getName() == $this->_config['container'] ) {
$container = $_container;
break;
}
}
if ( !$container ) {
$error = sprintf( 'Container doesn\'t exist: %s.', $this->_config['container'] );
return false;
}
try {
$this->_client->createBlockBlob( $this->_config['container'], $string, $string );
} catch ( \Exception $exception ) {
$error = sprintf( 'Unable to create blob (%s).', $exception->getMessage() );
return false;
}
try {
$propertiesResult = $this->_client->getBlobProperties( $this->_config['container'], $string );
$p = $propertiesResult->getProperties();
$size = $p->getContentLength();
$md5 = $p->getContentMD5();
} catch ( \Exception $exception ) {
$error = sprintf( 'Unable to get blob properties (%s).', $exception->getMessage() );
return false;
}
if ( $size != strlen( $string ) || $this->_get_content_md5( md5( $string ) ) != $md5 ) {
try {
$this->_client->deleteBlob( $this->_config['container'], $string );
} catch ( \Exception $exception ) {
}
$error = 'Blob data properties are not equal.';
return false;
}
try {
$getBlob = $this->_client->getBlob( $this->_config['container'], $string );
$dataStream = $getBlob->getContentStream();
$data = stream_get_contents( $dataStream );
} catch ( \Exception $exception ) {
$error = sprintf( 'Unable to get blob data (%s).', $exception->getMessage() );
return false;
}
if ( $data != $string ) {
try {
$this->_client->deleteBlob( $this->_config['container'], $string );
} catch ( \Exception $exception ) {
}
$error = 'Blob datas are not equal.';
return false;
}
try {
$this->_client->deleteBlob( $this->_config['container'], $string );
} catch ( \Exception $exception ) {
$error = sprintf( 'Unable to delete blob (%s).', $exception->getMessage() );
return false;
}
return true;
}
/**
* Returns CDN domain
*
* @return array
*/
function get_domains() {
if ( !empty( $this->_config['cname'] ) ) {
return (array) $this->_config['cname'];
} elseif ( !empty( $this->_config['user'] ) ) {
$domain = sprintf( '%s.blob.core.windows.net', $this->_config['user'] );
return array(
$domain
);
}
return array();
}
/**
* Returns via string
*
* @return string
*/
function get_via() {
return sprintf( 'Windows Azure Storage: %s', parent::get_via() );
}
/**
* Creates bucket
*
* @param string $error
* @return boolean
*/
function create_container() {
if ( !$this->_init( $error ) ) {
throw new \Exception( $error );
}
try {
$containers = $this->_client->listContainers();
} catch ( \Exception $exception ) {
$error = sprintf( 'Unable to list containers (%s).', $exception->getMessage() );
throw new \Exception( $error );
}
if ( in_array( $this->_config['container'], (array) $containers ) ) {
$error = sprintf( 'Container already exists: %s.', $this->_config['container'] );
throw new \Exception( $error );
}
try {
$createContainerOptions = new \MicrosoftAzure\Storage\Blob\Models\CreateContainerOptions();
$createContainerOptions->setPublicAccess(
\MicrosoftAzure\Storage\Blob\Models\PublicAccessType::CONTAINER_AND_BLOBS );
$this->_client->createContainer( $this->_config['container'], $createContainerOptions );
} catch ( \Exception $exception ) {
$error = sprintf( 'Unable to create container: %s (%s)', $this->_config['container'], $exception->getMessage() );
throw new \Exception( $error );
}
}
/**
* Returns Content-MD5 header value
*
* @param string $string
* @return string
*/
function _get_content_md5( $md5 ) {
return base64_encode( pack( 'H*', $md5 ) );
}
/**
* Formats object URL
*
* @param string $path
* @return string
*/
function _format_url( $path ) {
$domain = $this->get_domain( $path );
if ( $domain && !empty( $this->_config['container'] ) ) {
$scheme = $this->_get_scheme();
$url = sprintf( '%s://%s/%s/%s', $scheme, $domain, $this->_config['container'], $path );
return $url;
}
return false;
}
/**
* How and if headers should be set
*
* @return string W3TC_CDN_HEADER_NONE, W3TC_CDN_HEADER_UPLOADABLE, W3TC_CDN_HEADER_MIRRORING
*/
function headers_support() {
return W3TC_CDN_HEADER_UPLOADABLE;
}
function get_prepend_path( $path ) {
$path = parent::get_prepend_path( $path );
$path = $this->_config['container'] ? trim( $path, '/' ) . '/' . trim( $this->_config['container'], '/' ): $path;
return $path;
}
}