81 lines
2.2 KiB
PHP
81 lines
2.2 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\Common\Signature;
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use Aws\Common\Credentials\CredentialsInterface;
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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 sign requests before they are sent over the wire
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*/
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class SignatureListener implements EventSubscriberInterface
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{
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/**
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* @var CredentialsInterface
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*/
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protected $credentials;
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/**
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* @var SignatureInterface
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*/
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protected $signature;
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/**
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* Construct a new request signing plugin
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*
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* @param CredentialsInterface $credentials Credentials used to sign requests
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* @param SignatureInterface $signature Signature implementation
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*/
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public function __construct(CredentialsInterface $credentials, SignatureInterface $signature)
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{
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$this->credentials = $credentials;
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$this->signature = $signature;
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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(
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'request.before_send' => array('onRequestBeforeSend', -255),
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'client.credentials_changed' => array('onCredentialsChanged')
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);
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}
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/**
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* Updates the listener with new credentials if the client is updated
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*
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* @param Event $event Event emitted
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*/
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public function onCredentialsChanged(Event $event)
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{
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$this->credentials = $event['credentials'];
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}
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/**
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* Signs requests before they are sent
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*
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* @param Event $event Event emitted
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*/
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public function onRequestBeforeSend(Event $event)
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{
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$this->signature->signRequest($event['request'], $this->credentials);
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}
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}
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