86 lines
3.0 KiB
PHP
86 lines
3.0 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 Guzzle\Common\Event;
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use Symfony\Component\EventDispatcher\EventSubscriberInterface;
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/**
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* Listener used to change the way in which buckets are referenced (path/virtual style) based on context
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*/
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class BucketStyleListener 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.after_prepare' => array('onCommandAfterPrepare', -255));
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}
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/**
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* Changes how buckets are referenced in the HTTP request
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*
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* @param Event $event Event emitted
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*/
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public function onCommandAfterPrepare(Event $event)
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{
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$command = $event['command'];
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$bucket = $command['Bucket'];
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$request = $command->getRequest();
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$pathStyle = false;
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if ($key = $command['Key']) {
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// Modify the command Key to account for the {/Key*} explosion into an array
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if (is_array($key)) {
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$command['Key'] = $key = implode('/', $key);
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}
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}
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// Set the key and bucket on the request
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$request->getParams()->set('bucket', $bucket)->set('key', $key);
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// Switch to virtual if PathStyle is disabled, or not a DNS compatible bucket name, or the scheme is
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// http, or the scheme is https and there are no dots in the host header (avoids SSL issues)
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if (!$command['PathStyle'] && $command->getClient()->isValidBucketName($bucket)
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&& !($command->getRequest()->getScheme() == 'https' && strpos($bucket, '.'))
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) {
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// Switch to virtual hosted bucket
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$request->setHost($bucket . '.' . $request->getHost());
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$request->setPath(preg_replace("#^/{$bucket}#", '', $request->getPath()));
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} else {
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$pathStyle = true;
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}
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if (!$bucket) {
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$request->getParams()->set('s3.resource', '/');
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} elseif ($pathStyle) {
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// Path style does not need a trailing slash
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$request->getParams()->set(
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's3.resource',
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'/' . rawurlencode($bucket) . ($key ? ('/' . S3Client::encodeKey($key)) : '')
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);
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} else {
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// Bucket style needs a trailing slash
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$request->getParams()->set(
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's3.resource',
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'/' . rawurlencode($bucket) . ($key ? ('/' . S3Client::encodeKey($key)) : '/')
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);
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}
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}
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}
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