117 lines
3.4 KiB
PHP
117 lines
3.4 KiB
PHP
<?php
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/**
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* @copyright Copyright (c) 2016 Robin Appelman <robin@icewind.nl>
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*
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* @license GNU AGPL version 3 or any later version
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as
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* published by the Free Software Foundation, either version 3 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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namespace OC\Files\ObjectStore;
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use Guzzle\Http\EntityBody;
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use Guzzle\Http\Message\RequestInterface;
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use Guzzle\Service\Command\CommandInterface;
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use Guzzle\Stream\PhpStreamRequestFactory;
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use Icewind\Streams\CallbackWrapper;
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use OCP\Files\ObjectStore\IObjectStore;
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// TODO: proper composer
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set_include_path(get_include_path() . PATH_SEPARATOR .
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\OC_App::getAppPath('files_external') . '/3rdparty/aws-sdk-php');
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require_once 'aws-autoloader.php';
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class S3 implements IObjectStore {
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use S3ConnectionTrait;
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public function __construct($parameters) {
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$this->parseParams($parameters);
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}
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/**
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* @return string the container or bucket name where objects are stored
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* @since 7.0.0
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*/
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function getStorageId() {
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return $this->id;
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}
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/**
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* Serialize and sign a command, returning a request object
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*
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* @param CommandInterface $command Command to sign
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*
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* @return RequestInterface
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*/
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protected function getSignedRequest($command) {
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$request = $command->prepare();
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$request->dispatch('request.before_send', array('request' => $request));
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return $request;
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}
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/**
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* @param string $urn the unified resource name used to identify the object
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* @return resource stream with the read data
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* @throws \Exception when something goes wrong, message will be logged
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* @since 7.0.0
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*/
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function readObject($urn) {
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// Create the command and serialize the request
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$request = $this->getSignedRequest($this->getConnection()->getCommand('GetObject', [
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'Bucket' => $this->bucket,
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'Key' => $urn
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]));
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// Create a stream that uses the EntityBody object
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$factory = new PhpStreamRequestFactory();
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/** @var EntityBody $body */
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$body = $factory->fromRequest($request, array(), array('stream_class' => 'Guzzle\Http\EntityBody'));
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$stream = $body->getStream();
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// we need to keep the guzzle request in scope untill the stream is closed
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return CallbackWrapper::wrap($stream, null, null, function () use ($body) {
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$body->close();
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});
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}
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/**
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* @param string $urn the unified resource name used to identify the object
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* @param resource $stream stream with the data to write
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* @throws \Exception when something goes wrong, message will be logged
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* @since 7.0.0
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*/
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function writeObject($urn, $stream) {
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$this->getConnection()->putObject([
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'Bucket' => $this->bucket,
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'Key' => $urn,
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'Body' => $stream
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]);
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}
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/**
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* @param string $urn the unified resource name used to identify the object
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* @return void
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* @throws \Exception when something goes wrong, message will be logged
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* @since 7.0.0
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*/
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function deleteObject($urn) {
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$this->getConnection()->deleteObject([
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'Bucket' => $this->bucket,
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'Key' => $urn
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]);
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}
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}
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