friendica-addons/s3_storage/src/S3Client.php

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2022-02-20 20:22:07 +00:00
<?php
namespace Friendica\Addon\s3_storage\src;
defined('AKEEBAENGINE') or define('AKEEBAENGINE', 1);
use Akeeba\Engine\Postproc\Connector\S3v4\Configuration;
use Akeeba\Engine\Postproc\Connector\S3v4\Connector;
use Akeeba\Engine\Postproc\Connector\S3v4\Exception\CannotDeleteFile;
use Akeeba\Engine\Postproc\Connector\S3v4\Input;
use Friendica\Core\Storage\Capability\ICanWriteToStorage;
use Friendica\Core\Storage\Exception\StorageException;
use Friendica\Util\Strings;
/**
* A WebDav Backend Storage class
*/
class S3Client implements ICanWriteToStorage
{
const NAME = 'S3';
/** @var Connector */
protected $connector;
/** @var string The name of the bucket used for the backend */
protected $bucket;
public function __construct(Configuration $config, string $bucket)
{
$this->connector = new Connector($config);
$this->bucket = $bucket;
}
/**
* Split data ref and return file path
*
* @param string $reference Data reference
*
* @return string
*/
private function pathForRef(string $reference): string
{
$fold1 = substr($reference, 0, 2);
$fold2 = substr($reference, 2, 2);
$file = substr($reference, 4);
return implode('/', [$fold1, $fold2, $file]);
}
/** {@inheritDoc} */
public function __toString(): string
{
return self::getName();
}
/** {@inheritDoc} */
public static function getName(): string
{
return self::NAME;
}
/** {@inheritDoc} */
public function get(string $reference): string
{
try {
return $this->connector->getObject($this->bucket, $this->pathForRef($reference), false);
} catch (\RuntimeException $exception) {
throw new StorageException(sprintf('Cannot get reference %s', $reference), $exception->getCode(), $exception);
}
}
/** {@inheritDoc} */
public function put(string $data, string $reference = ""): string
{
if ($reference === '') {
try {
$reference = Strings::getRandomHex();
} catch (\Exception $exception) {
throw new StorageException('S3 storage failed to generate a random hex', $exception->getCode(), $exception);
}
}
try {
$input = Input::createFromData($data);
$this->connector->putObject($input, $this->bucket, $this->pathForRef($reference));
return $reference;
} catch (\Exception $exception) {
throw new StorageException(sprintf('Cannot put data for reference %s', $reference), $exception->getCode(), $exception);
}
}
/** {@inheritDoc} */
public function delete(string $reference)
{
try {
$this->connector->deleteObject($this->bucket, $this->pathForRef($reference));
} catch (CannotDeleteFile $exception) {
throw new StorageException(sprintf('Cannot delete reference %s', $reference), $exception->getCode(), $exception);
}
}
}