nextcloud/apps/files_external/3rdparty/aws-sdk-php/Aws/S3/Model/DeleteObjectsTransfer.php

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<?php
/**
* Copyright 2010-2013 Amazon.com, Inc. or its affiliates. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License").
* You may not use this file except in compliance with the License.
* A copy of the License is located at
*
* http://aws.amazon.com/apache2.0
*
* or in the "license" file accompanying this file. This file is distributed
* on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
* express or implied. See the License for the specific language governing
* permissions and limitations under the License.
*/
namespace Aws\S3\Model;
use Aws\Common\Client\AwsClientInterface;
use Aws\Common\Exception\OverflowException;
use Aws\Common\Enum\UaString as Ua;
use Aws\S3\Exception\InvalidArgumentException;
use Aws\S3\Exception\DeleteMultipleObjectsException;
use Guzzle\Batch\BatchTransferInterface;
use Guzzle\Service\Command\CommandInterface;
/**
* Transfer logic for deleting multiple objects from an Amazon S3 bucket in a
* single request
*/
class DeleteObjectsTransfer implements BatchTransferInterface
{
/**
* @var AwsClientInterface The Amazon S3 client for doing transfers
*/
protected $client;
/**
* @var string Bucket from which to delete the objects
*/
protected $bucket;
/**
* @var string MFA token to apply to the request
*/
protected $mfa;
/**
* Constructs a transfer using the injected client
*
* @param AwsClientInterface $client Client used to transfer the requests
* @param string $bucket Name of the bucket that stores the objects
* @param string $mfa MFA token used when contacting the Amazon S3 API
*/
public function __construct(AwsClientInterface $client, $bucket, $mfa = null)
{
$this->client = $client;
$this->bucket = $bucket;
$this->mfa = $mfa;
}
/**
* Set a new MFA token value
*
* @param string $token MFA token
*
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* @return $this
*/
public function setMfa($token)
{
$this->mfa = $token;
return $this;
}
/**
* {@inheritdoc}
* @throws OverflowException if a batch has more than 1000 items
* @throws InvalidArgumentException when an invalid batch item is encountered
*/
public function transfer(array $batch)
{
if (empty($batch)) {
return;
}
if (count($batch) > 1000) {
throw new OverflowException('Batches should be divided into chunks of no larger than 1000 keys');
}
$del = array();
$command = $this->client->getCommand('DeleteObjects', array(
'Bucket' => $this->bucket,
Ua::OPTION => Ua::BATCH
));
if ($this->mfa) {
$command->getRequestHeaders()->set('x-amz-mfa', $this->mfa);
}
foreach ($batch as $object) {
// Ensure that the batch item is valid
if (!is_array($object) || !isset($object['Key'])) {
throw new InvalidArgumentException('Invalid batch item encountered: ' . var_export($batch, true));
}
$del[] = array(
'Key' => $object['Key'],
'VersionId' => isset($object['VersionId']) ? $object['VersionId'] : null
);
}
$command['Objects'] = $del;
$command->execute();
$this->processResponse($command);
}
/**
* Process the response of the DeleteMultipleObjects request
*
* @paramCommandInterface $command Command executed
*/
protected function processResponse(CommandInterface $command)
{
$result = $command->getResult();
// Ensure that the objects were deleted successfully
if (!empty($result['Errors'])) {
$errors = $result['Errors'];
throw new DeleteMultipleObjectsException($errors);
}
}
}