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<?php |
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namespace phpbu\App\Backup\Sync; |
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use Aws\S3\S3Client; |
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use Aws\S3\MultipartUploader; |
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use phpbu\App\Result; |
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use phpbu\App\Backup\Target; |
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/** |
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* Amazon S3 Sync |
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* |
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* @package phpbu |
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* @subpackage Backup |
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* @author Sebastian Feldmann <[email protected]> |
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* @copyright Sebastian Feldmann <[email protected]> |
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* @license https://opensource.org/licenses/MIT The MIT License (MIT) |
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* @link http://phpbu.de/ |
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* @since Class available since Release 3.0.0 |
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*/ |
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class AmazonS3v3 extends AmazonS3 |
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{ |
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/** |
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* Execute the sync. |
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* |
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* @see \phpbu\App\Backup\Sync::sync() |
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* @param \phpbu\App\Backup\Target $target |
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* @param \phpbu\App\Result $result |
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* @throws \phpbu\App\Backup\Sync\Exception |
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*/ |
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public function sync(Target $target, Result $result) |
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{ |
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$s3 = new S3Client([ |
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'region' => $this->region, |
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'version' => '2006-03-01', |
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'credentials' => [ |
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'key' => $this->key, |
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'secret' => $this->secret, |
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] |
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]); |
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if (!$s3->doesBucketExist($this->bucket)) { |
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$result->debug('create s3 bucket'); |
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$this->createBucket($s3); |
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} |
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try { |
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$this->upload($target, $s3); |
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} catch (\Exception $e) { |
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throw new Exception($e->getMessage(), null, $e); |
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} |
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$result->debug('upload: done'); |
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} |
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/** |
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* Create a s3 bucket. |
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* |
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* @param \Aws\S3\S3Client $s3 |
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*/ |
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private function createBucket(S3Client $s3) |
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{ |
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$s3->createBucket([ |
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'ACL' => $this->acl, |
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'Bucket' => $this->bucket, |
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'CreateBucketConfiguration' => [ |
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'LocationConstraint' => $this->region, |
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] |
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]); |
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} |
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/** |
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* Upload backup to Amazon S3 bucket. |
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* |
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* @param \phpbu\App\Backup\Target $target |
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* @param \Aws\S3\S3Client $s3 |
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*/ |
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private function upload(Target $target, S3Client $s3) |
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{ |
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if ($this->useMultiPartUpload($target)) { |
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$this->uploadMultiPart($target, $s3); |
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} else { |
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$this->uploadStream($target, $s3); |
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} |
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} |
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/** |
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* Upload via stream wrapper. |
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* |
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* @param \phpbu\App\Backup\Target $target |
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* @param \Aws\S3\S3Client $s3 |
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* @throws \phpbu\App\Backup\Sync\Exception |
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*/ |
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private function uploadStream(Target $target, S3Client $s3) |
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{ |
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$s3->registerStreamWrapper(); |
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$source = $this->getFileHandle($target->getPathname(), 'r'); |
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$stream = $this->getFileHandle('s3://' . $this->bucket . '/' . $this->getUploadPath($target), 'w'); |
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while(!feof($source)) { |
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fwrite($stream, fread($source, 4096)); |
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} |
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fclose($stream); |
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} |
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/** |
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* Upload via multi part. |
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* |
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* @param \phpbu\App\Backup\Target $target |
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* @param \Aws\S3\S3Client $s3 |
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* @param \Aws\Exception\MultipartUploadException |
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*/ |
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private function uploadMultiPart(Target $target, S3Client $s3) |
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{ |
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$uploader = new MultipartUploader($s3, $target->getPathname(), [ |
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'bucket' => $this->bucket, |
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'key' => $this->getUploadPath($target), |
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]); |
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$uploader->upload(); |
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} |
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/** |
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* Open stream and validate it. |
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* |
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* @param string $path |
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* @param string $mode |
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* @return resource |
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* @throws \phpbu\App\Backup\Sync\Exception |
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*/ |
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private function getFileHandle($path, $mode) |
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{ |
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$handle = fopen($path, $mode); |
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if (!is_resource($handle)) { |
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throw new Exception('fopen failed: could not open stream ' . $path); |
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} |
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return $handle; |
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} |
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/** |
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* Get the s3 upload path |
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* |
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* @param \phpbu\App\Backup\Target $target |
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* @return string |
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*/ |
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public function getUploadPath(Target $target) |
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{ |
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// remove leading slash |
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return (substr($this->path, 0, 1) == '/' ? substr($this->path, 1) : $this->path) |
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. (substr($this->path, -1, 1) == '/' ? '' : '/') |
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. $target->getFilename(); |
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} |
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} |
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sebastianfeldmann /
phpbu
