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efrain |
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<?php
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namespace Aws\S3;
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use Aws\CommandInterface;
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use Aws\Multipart\UploadState;
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use Aws\ResultInterface;
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trait MultipartUploadingTrait
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{
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/**
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* Creates an UploadState object for a multipart upload by querying the
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* service for the specified upload's information.
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*
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* @param S3ClientInterface $client S3Client used for the upload.
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* @param string $bucket Bucket for the multipart upload.
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* @param string $key Object key for the multipart upload.
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* @param string $uploadId Upload ID for the multipart upload.
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*
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* @return UploadState
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*/
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public static function getStateFromService(
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S3ClientInterface $client,
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$bucket,
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$key,
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$uploadId
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) {
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$state = new UploadState([
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'Bucket' => $bucket,
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'Key' => $key,
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'UploadId' => $uploadId,
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]);
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foreach ($client->getPaginator('ListParts', $state->getId()) as $result) {
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// Get the part size from the first part in the first result.
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if (!$state->getPartSize()) {
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$state->setPartSize($result->search('Parts[0].Size'));
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}
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// Mark all the parts returned by ListParts as uploaded.
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foreach ($result['Parts'] as $part) {
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$state->markPartAsUploaded($part['PartNumber'], [
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'PartNumber' => $part['PartNumber'],
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'ETag' => $part['ETag']
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]);
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}
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}
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$state->setStatus(UploadState::INITIATED);
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return $state;
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}
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protected function handleResult(CommandInterface $command, ResultInterface $result)
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{
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$this->getState()->markPartAsUploaded($command['PartNumber'], [
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'PartNumber' => $command['PartNumber'],
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'ETag' => $this->extractETag($result),
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]);
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}
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abstract protected function extractETag(ResultInterface $result);
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protected function getCompleteParams()
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{
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$config = $this->getConfig();
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$params = isset($config['params']) ? $config['params'] : [];
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$params['MultipartUpload'] = [
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'Parts' => $this->getState()->getUploadedParts()
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];
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return $params;
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}
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protected function determinePartSize()
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{
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// Make sure the part size is set.
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$partSize = $this->getConfig()['part_size'] ?: MultipartUploader::PART_MIN_SIZE;
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// Adjust the part size to be larger for known, x-large uploads.
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if ($sourceSize = $this->getSourceSize()) {
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$partSize = (int) max(
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$partSize,
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ceil($sourceSize / MultipartUploader::PART_MAX_NUM)
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);
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}
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// Ensure that the part size follows the rules: 5 MB <= size <= 5 GB.
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if ($partSize < MultipartUploader::PART_MIN_SIZE || $partSize > MultipartUploader::PART_MAX_SIZE) {
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throw new \InvalidArgumentException('The part size must be no less '
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. 'than 5 MB and no greater than 5 GB.');
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}
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return $partSize;
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}
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protected function getInitiateParams()
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{
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$config = $this->getConfig();
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$params = isset($config['params']) ? $config['params'] : [];
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if (isset($config['acl'])) {
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$params['ACL'] = $config['acl'];
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}
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// Set the ContentType if not already present
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if (empty($params['ContentType']) && $type = $this->getSourceMimeType()) {
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$params['ContentType'] = $type;
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}
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return $params;
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}
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/**
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* @return UploadState
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*/
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abstract protected function getState();
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/**
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* @return array
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*/
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abstract protected function getConfig();
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/**
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* @return int
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*/
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abstract protected function getSourceSize();
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/**
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* @return string|null
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*/
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abstract protected function getSourceMimeType();
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}
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