76 lines
2.5 KiB
PHP
76 lines
2.5 KiB
PHP
<?php
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/**
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* Copyright 2010-2013 Amazon.com, Inc. or its affiliates. All Rights Reserved.
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*
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* Licensed under the Apache License, Version 2.0 (the "License").
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* You may not use this file except in compliance with the License.
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* A copy of the License is located at
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*
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* http://aws.amazon.com/apache2.0
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*
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* or in the "license" file accompanying this file. This file is distributed
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* on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
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* express or implied. See the License for the specific language governing
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* permissions and limitations under the License.
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*/
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namespace Aws\S3;
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use Aws\Common\Exception\InvalidArgumentException;
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use Aws\S3\Model\Acp;
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use Guzzle\Common\Event;
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use Symfony\Component\EventDispatcher\EventSubscriberInterface;
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/**
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* Listener used to add an Access Control Policy to a request
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*/
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class AcpListener implements EventSubscriberInterface
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{
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/**
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* {@inheritdoc}
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*/
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public static function getSubscribedEvents()
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{
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return array('command.before_prepare' => array('onCommandBeforePrepare', -255));
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}
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/**
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* An event handler for constructing ACP definitions.
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*
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* @param Event $event The event to respond to.
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*
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* @throws InvalidArgumentException
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*/
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public function onCommandBeforePrepare(Event $event)
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{
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/** @var $command \Guzzle\Service\Command\AbstractCommand */
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$command = $event['command'];
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$operation = $command->getOperation();
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if ($operation->hasParam('ACP') && $command->hasKey('ACP')) {
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if ($acp = $command->get('ACP')) {
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// Ensure that the correct object was passed
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if (!($acp instanceof Acp)) {
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throw new InvalidArgumentException('ACP must be an instance of Aws\S3\Model\Acp');
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}
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// Check if the user specified both an ACP and Grants
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if ($command->hasKey('Grants')) {
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throw new InvalidArgumentException(
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'Use either the ACP parameter or the Grants parameter. Do not use both.'
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);
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}
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// Add the correct headers/body based parameters to the command
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if ($operation->hasParam('Grants')) {
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$command->overwriteWith($acp->toArray());
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} else {
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$acp->updateCommand($command);
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}
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}
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// Remove the ACP parameter
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$command->remove('ACP');
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}
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}
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}
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