825 lines
23 KiB
PHP
825 lines
23 KiB
PHP
<?php
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/**
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* Zend Framework
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*
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* LICENSE
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*
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* This source file is subject to the new BSD license that is bundled
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* with this package in the file LICENSE.txt.
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* It is also available through the world-wide-web at this URL:
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* http://framework.zend.com/license/new-bsd
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* If you did not receive a copy of the license and are unable to
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* obtain it through the world-wide-web, please send an email
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* to license@zend.com so we can send you a copy immediately.
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*
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* @category Zend
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* @package Zend_Service
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* @subpackage Amazon_S3
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* @copyright Copyright (c) 2005-2009 Zend Technologies USA Inc. (http://www.zend.com)
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* @license http://framework.zend.com/license/new-bsd New BSD License
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* @version $Id: S3.php 16971 2009-07-22 18:05:45Z mikaelkael $
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*/
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/**
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* @see Zend_Service_Amazon_Abstract
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*/
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require_once 'Zend/Service/Amazon/Abstract.php';
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/**
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* @see Zend_Crypt_Hmac
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*/
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require_once 'Zend/Crypt/Hmac.php';
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/**
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* Amazon S3 PHP connection class
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*
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* @category Zend
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* @package Zend_Service
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* @subpackage Amazon_S3
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* @copyright Copyright (c) 2005-2009 Zend Technologies USA Inc. (http://www.zend.com)
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* @license http://framework.zend.com/license/new-bsd New BSD License
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* @see http://docs.amazonwebservices.com/AmazonS3/2006-03-01/
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*/
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class Zend_Service_Amazon_S3 extends Zend_Service_Amazon_Abstract
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{
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/**
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* Store for stream wrapper clients
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*
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* @var array
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*/
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protected static $_wrapperClients = array();
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/**
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* Endpoint for the service
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*
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* @var Zend_Uri_Http
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*/
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protected $_endpoint;
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const S3_ENDPOINT = 's3.amazonaws.com';
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const S3_ACL_PRIVATE = 'private';
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const S3_ACL_PUBLIC_READ = 'public-read';
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const S3_ACL_PUBLIC_WRITE = 'public-read-write';
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const S3_ACL_AUTH_READ = 'authenticated-read';
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const S3_REQUESTPAY_HEADER = 'x-amz-request-payer';
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const S3_ACL_HEADER = 'x-amz-acl';
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const S3_CONTENT_TYPE_HEADER = 'Content-Type';
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/**
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* Set S3 endpoint to use
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*
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* @param string|Zend_Uri_Http $endpoint
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* @return Zend_Service_Amazon_S3
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*/
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public function setEndpoint($endpoint)
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{
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if (!($endpoint instanceof Zend_Uri_Http)) {
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$endpoint = Zend_Uri::factory($endpoint);
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}
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if (!$endpoint->valid()) {
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/**
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* @see Zend_Service_Amazon_S3_Exception
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*/
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require_once 'Zend/Service/Amazon/S3/Exception.php';
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throw new Zend_Service_Amazon_S3_Exception('Invalid endpoint supplied');
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}
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$this->_endpoint = $endpoint;
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return $this;
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}
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/**
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* Get current S3 endpoint
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*
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* @return Zend_Uri_Http
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*/
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public function getEndpoint()
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{
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return $this->_endpoint;
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}
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/**
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* Constructor
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*
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* @param string $accessKey
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* @param string $secretKey
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* @param string $region
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*/
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public function __construct($accessKey=null, $secretKey=null, $region=null)
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{
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parent::__construct($accessKey, $secretKey, $region);
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$this->setEndpoint('http://'.self::S3_ENDPOINT);
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}
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/**
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* Verify if the bucket name is valid
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*
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* @param string $bucket
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* @return boolean
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*/
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public function _validBucketName($bucket)
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{
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$len = strlen($bucket);
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if ($len < 3 || $len > 255) {
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/**
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* @see Zend_Service_Amazon_S3_Exception
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*/
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require_once 'Zend/Service/Amazon/S3/Exception.php';
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throw new Zend_Service_Amazon_S3_Exception("Bucket name \"$bucket\" must be between 3 and 255 characters long");
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}
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if (preg_match('/[^a-z0-9\._-]/', $bucket)) {
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/**
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* @see Zend_Service_Amazon_S3_Exception
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*/
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require_once 'Zend/Service/Amazon/S3/Exception.php';
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throw new Zend_Service_Amazon_S3_Exception("Bucket name \"$bucket\" contains invalid characters");
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}
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if (preg_match('/(\d){1,3}\.(\d){1,3}\.(\d){1,3}\.(\d){1,3}/', $bucket)) {
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/**
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* @see Zend_Service_Amazon_S3_Exception
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*/
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require_once 'Zend/Service/Amazon/S3/Exception.php';
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throw new Zend_Service_Amazon_S3_Exception("Bucket name \"$bucket\" cannot be an IP address");
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}
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return true;
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}
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/**
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* Add a new bucket
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*
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* @param string $bucket
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* @return boolean
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*/
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public function createBucket($bucket, $location = null)
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{
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$this->_validBucketName($bucket);
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if($location) {
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$data = '<CreateBucketConfiguration><LocationConstraint>'.$location.'</LocationConstraint></CreateBucketConfiguration>';
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}
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else {
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$data = null;
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}
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$response = $this->_makeRequest('PUT', $bucket, null, array(), $data);
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return ($response->getStatus() == 200);
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}
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/**
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* Checks if a given bucket name is available
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*
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* @param string $bucket
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* @return boolean
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*/
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public function isBucketAvailable($bucket)
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{
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$response = $this->_makeRequest('HEAD', $bucket, array('max-keys'=>0));
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return ($response->getStatus() != 404);
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}
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/**
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* Checks if a given object exists
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*
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* @param string $object
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* @return boolean
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*/
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public function isObjectAvailable($object)
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{
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$response = $this->_makeRequest('HEAD', $object);
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return ($response->getStatus() == 200);
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}
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/**
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* Remove a given bucket. All objects in the bucket must be removed prior
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* to removing the bucket.
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*
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* @param string $bucket
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* @return boolean
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*/
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public function removeBucket($bucket)
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{
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$response = $this->_makeRequest('DELETE', $bucket);
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// Look for a 204 No Content response
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return ($response->getStatus() == 204);
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}
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/**
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* Get metadata information for a given object
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*
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* @param string $object
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* @return array|false
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*/
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public function getInfo($object)
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{
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$info = array();
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$object = $this->_fixupObjectName($object);
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$response = $this->_makeRequest('HEAD', $object);
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if ($response->getStatus() == 200) {
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$info['type'] = $response->getHeader('Content-type');
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$info['size'] = $response->getHeader('Content-length');
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$info['mtime'] = strtotime($response->getHeader('Last-modified'));
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$info['etag'] = $response->getHeader('ETag');
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}
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else {
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return false;
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}
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return $info;
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}
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/**
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* List the S3 buckets
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*
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* @return array|false
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*/
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public function getBuckets()
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{
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$response = $this->_makeRequest('GET');
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if ($response->getStatus() != 200) {
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return false;
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}
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$xml = new SimpleXMLElement($response->getBody());
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$buckets = array();
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foreach ($xml->Buckets->Bucket as $bucket) {
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$buckets[] = (string)$bucket->Name;
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}
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return $buckets;
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}
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/**
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* Remove all objects in the bucket.
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*
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* @param string $bucket
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* @return boolean
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*/
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public function cleanBucket($bucket)
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{
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$objects = $this->getObjectsByBucket($bucket);
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if (!$objects) {
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return false;
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}
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foreach ($objects as $object) {
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$this->removeObject("$bucket/$object");
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}
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return true;
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}
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/**
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* List the objects in a bucket.
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*
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* Provides the list of object keys that are contained in the bucket.
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*
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* @param string $bucket
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* @return array|false
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*/
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public function getObjectsByBucket($bucket)
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{
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$response = $this->_makeRequest('GET', $bucket);
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if ($response->getStatus() != 200) {
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return false;
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}
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$xml = new SimpleXMLElement($response->getBody());
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$objects = array();
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if (isset($xml->Contents)) {
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foreach ($xml->Contents as $contents) {
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foreach ($contents->Key as $object) {
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$objects[] = (string)$object;
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}
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}
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}
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return $objects;
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}
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/**
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* Make sure the object name is valid
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*
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* @param string $object
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* @return string
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*/
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protected function _fixupObjectName($object)
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{
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$nameparts = explode('/', $object);
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$this->_validBucketName($nameparts[0]);
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$firstpart = array_shift($nameparts);
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if (count($nameparts) == 0) {
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return $firstpart;
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}
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return $firstpart.'/'.join('/', array_map('rawurlencode', $nameparts));
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}
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/**
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* Get an object
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*
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* @param string $object
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* @param bool $paidobject This is "requestor pays" object
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* @return string|false
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*/
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public function getObject($object, $paidobject=false)
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{
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$object = $this->_fixupObjectName($object);
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if ($paidobject) {
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$response = $this->_makeRequest('GET', $object, null, array(self::S3_REQUESTPAY_HEADER => 'requester'));
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}
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else {
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$response = $this->_makeRequest('GET', $object);
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}
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if ($response->getStatus() != 200) {
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return false;
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}
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return $response->getBody();
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}
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/**
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* Upload an object by a PHP string
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*
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* @param string $object Object name
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* @param string $data Object data
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* @param array $meta Metadata
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* @return boolean
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*/
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public function putObject($object, $data, $meta=null)
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{
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$object = $this->_fixupObjectName($object);
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$headers = (is_array($meta)) ? $meta : array();
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$headers['Content-MD5'] = base64_encode(md5($data, true));
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$headers['Expect'] = '100-continue';
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if (!isset($headers[self::S3_CONTENT_TYPE_HEADER])) {
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$headers[self::S3_CONTENT_TYPE_HEADER] = self::getMimeType($object);
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}
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$response = $this->_makeRequest('PUT', $object, null, $headers, $data);
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// Check the MD5 Etag returned by S3 against and MD5 of the buffer
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if ($response->getStatus() == 200) {
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// It is escaped by double quotes for some reason
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$etag = str_replace('"', '', $response->getHeader('Etag'));
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if ($etag == md5($data)) {
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return true;
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}
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}
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return false;
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}
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/**
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* Put file to S3 as object
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*
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* @param string $path File name
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* @param string $object Object name
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* @param array $meta Metadata
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* @return boolean
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*/
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public function putFile($path, $object, $meta=null)
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{
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$data = @file_get_contents($path);
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if ($data === false) {
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/**
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* @see Zend_Service_Amazon_S3_Exception
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*/
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require_once 'Zend/Service/Amazon/S3/Exception.php';
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throw new Zend_Service_Amazon_S3_Exception("Cannot read file $path");
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}
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if (!is_array($meta)) {
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$meta = array();
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}
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if (!isset($meta[self::S3_CONTENT_TYPE_HEADER])) {
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$meta[self::S3_CONTENT_TYPE_HEADER] = self::getMimeType($path);
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}
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return $this->putObject($object, $data, $meta);
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}
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/**
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* Remove a given object
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*
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* @param string $object
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* @return boolean
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*/
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public function removeObject($object)
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{
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$object = $this->_fixupObjectName($object);
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$response = $this->_makeRequest('DELETE', $object);
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// Look for a 204 No Content response
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return ($response->getStatus() == 204);
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}
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/**
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* Make a request to Amazon S3
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*
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* @param string $method
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* @param string $path
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* @param array $params
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* @param array $headers
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* @param string $data
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* @return Zend_Http_Response
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*/
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public function _makeRequest($method, $path='', $params=null, $headers=array(), $data=null)
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{
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$retry_count = 0;
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if (!is_array($headers)) {
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$headers = array($headers);
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}
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$headers['Date'] = gmdate(DATE_RFC1123, time());
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// build the end point out
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$parts = explode('/', $path, 2);
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$endpoint = clone($this->_endpoint);
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if ($parts[0]) {
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// prepend bucket name to the hostname
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$endpoint->setHost($parts[0].'.'.$endpoint->getHost());
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}
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if (!empty($parts[1])) {
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$endpoint->setPath('/'.$parts[1]);
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}
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else {
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$endpoint->setPath('/');
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if ($parts[0]) {
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$path = $parts[0].'/';
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}
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}
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self::addSignature($method, $path, $headers);
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$client = self::getHttpClient();
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$client->resetParameters();
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$client->setAuth(false);
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// Work around buglet in HTTP client - it doesn't clean headers
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// Remove when ZHC is fixed
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$client->setHeaders(array('Content-MD5' => null,
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'Expect' => null,
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'Range' => null,
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'x-amz-acl' => null));
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$client->setUri($endpoint);
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$client->setHeaders($headers);
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if (is_array($params)) {
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foreach ($params as $name=>$value) {
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$client->setParameterGet($name, $value);
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}
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}
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if (($method == 'PUT') && ($data !== null)) {
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if (!isset($headers['Content-type'])) {
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$headers['Content-type'] = self::getMimeType($path);
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}
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$client->setRawData($data, $headers['Content-type']);
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}
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do {
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$retry = false;
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$response = $client->request($method);
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$response_code = $response->getStatus();
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// Some 5xx errors are expected, so retry automatically
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if ($response_code >= 500 && $response_code < 600 && $retry_count <= 5) {
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$retry = true;
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$retry_count++;
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sleep($retry_count / 4 * $retry_count);
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}
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else if ($response_code == 307) {
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// Need to redirect, new S3 endpoint given
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// This should never happen as Zend_Http_Client will redirect automatically
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}
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else if ($response_code == 100) {
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// echo 'OK to Continue';
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}
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} while ($retry);
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return $response;
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}
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/**
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* Add the S3 Authorization signature to the request headers
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*
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* @param string $method
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* @param string $path
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* @param array &$headers
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* @return string
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*/
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protected function addSignature($method, $path, &$headers)
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{
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if (!is_array($headers)) {
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$headers = array($headers);
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}
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$type = $md5 = $date = '';
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// Search for the Content-type, Content-MD5 and Date headers
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foreach ($headers as $key=>$val) {
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if (strcasecmp($key, 'content-type') == 0) {
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$type = $val;
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}
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else if (strcasecmp($key, 'content-md5') == 0) {
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$md5 = $val;
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}
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else if (strcasecmp($key, 'date') == 0) {
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$date = $val;
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}
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}
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// If we have an x-amz-date header, use that instead of the normal Date
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if (isset($headers['x-amz-date']) && isset($date)) {
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$date = '';
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}
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$sig_str = "$method\n$md5\n$type\n$date\n";
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// For x-amz- headers, combine like keys, lowercase them, sort them
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// alphabetically and remove excess spaces around values
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$amz_headers = array();
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foreach ($headers as $key=>$val) {
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$key = strtolower($key);
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if (substr($key, 0, 6) == 'x-amz-') {
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if (is_array($val)) {
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$amz_headers[$key] = $val;
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}
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else {
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$amz_headers[$key][] = preg_replace('/\s+/', ' ', $val);
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}
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}
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}
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if (!empty($amz_headers)) {
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ksort($amz_headers);
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foreach ($amz_headers as $key=>$val) {
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$sig_str .= $key.':'.implode(',', $val)."\n";
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}
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}
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|
|
$sig_str .= '/'.parse_url($path, PHP_URL_PATH);
|
|
if (strpos($path, '?location') !== false) {
|
|
$sig_str .= '?location';
|
|
}
|
|
else if (strpos($path, '?acl') !== false) {
|
|
$sig_str .= '?acl';
|
|
}
|
|
else if (strpos($path, '?torrent') !== false) {
|
|
$sig_str .= '?torrent';
|
|
}
|
|
|
|
$signature = base64_encode(Zend_Crypt_Hmac::compute($this->_getSecretKey(), 'sha1', utf8_encode($sig_str), Zend_Crypt_Hmac::BINARY));
|
|
$headers['Authorization'] = 'AWS '.$this->_getAccessKey().':'.$signature;
|
|
|
|
return $sig_str;
|
|
}
|
|
|
|
/**
|
|
* Attempt to get the content-type of a file based on the extension
|
|
*
|
|
* TODO: move this to Zend_Mime
|
|
*
|
|
* @param string $path
|
|
* @return string
|
|
*/
|
|
public static function getMimeType($path)
|
|
{
|
|
$ext = substr(strrchr($path, '.'), 1);
|
|
|
|
if(!$ext) {
|
|
// shortcut
|
|
return 'binary/octet-stream';
|
|
}
|
|
|
|
switch ($ext) {
|
|
case 'xls':
|
|
$content_type = 'application/excel';
|
|
break;
|
|
case 'hqx':
|
|
$content_type = 'application/macbinhex40';
|
|
break;
|
|
case 'doc':
|
|
case 'dot':
|
|
case 'wrd':
|
|
$content_type = 'application/msword';
|
|
break;
|
|
case 'pdf':
|
|
$content_type = 'application/pdf';
|
|
break;
|
|
case 'pgp':
|
|
$content_type = 'application/pgp';
|
|
break;
|
|
case 'ps':
|
|
case 'eps':
|
|
case 'ai':
|
|
$content_type = 'application/postscript';
|
|
break;
|
|
case 'ppt':
|
|
$content_type = 'application/powerpoint';
|
|
break;
|
|
case 'rtf':
|
|
$content_type = 'application/rtf';
|
|
break;
|
|
case 'tgz':
|
|
case 'gtar':
|
|
$content_type = 'application/x-gtar';
|
|
break;
|
|
case 'gz':
|
|
$content_type = 'application/x-gzip';
|
|
break;
|
|
case 'php':
|
|
case 'php3':
|
|
case 'php4':
|
|
$content_type = 'application/x-httpd-php';
|
|
break;
|
|
case 'js':
|
|
$content_type = 'application/x-javascript';
|
|
break;
|
|
case 'ppd':
|
|
case 'psd':
|
|
$content_type = 'application/x-photoshop';
|
|
break;
|
|
case 'swf':
|
|
case 'swc':
|
|
case 'rf':
|
|
$content_type = 'application/x-shockwave-flash';
|
|
break;
|
|
case 'tar':
|
|
$content_type = 'application/x-tar';
|
|
break;
|
|
case 'zip':
|
|
$content_type = 'application/zip';
|
|
break;
|
|
case 'mid':
|
|
case 'midi':
|
|
case 'kar':
|
|
$content_type = 'audio/midi';
|
|
break;
|
|
case 'mp2':
|
|
case 'mp3':
|
|
case 'mpga':
|
|
$content_type = 'audio/mpeg';
|
|
break;
|
|
case 'ra':
|
|
$content_type = 'audio/x-realaudio';
|
|
break;
|
|
case 'wav':
|
|
$content_type = 'audio/wav';
|
|
break;
|
|
case 'bmp':
|
|
$content_type = 'image/bitmap';
|
|
break;
|
|
case 'gif':
|
|
$content_type = 'image/gif';
|
|
break;
|
|
case 'iff':
|
|
$content_type = 'image/iff';
|
|
break;
|
|
case 'jb2':
|
|
$content_type = 'image/jb2';
|
|
break;
|
|
case 'jpg':
|
|
case 'jpe':
|
|
case 'jpeg':
|
|
$content_type = 'image/jpeg';
|
|
break;
|
|
case 'jpx':
|
|
$content_type = 'image/jpx';
|
|
break;
|
|
case 'png':
|
|
$content_type = 'image/png';
|
|
break;
|
|
case 'tif':
|
|
case 'tiff':
|
|
$content_type = 'image/tiff';
|
|
break;
|
|
case 'wbmp':
|
|
$content_type = 'image/vnd.wap.wbmp';
|
|
break;
|
|
case 'xbm':
|
|
$content_type = 'image/xbm';
|
|
break;
|
|
case 'css':
|
|
$content_type = 'text/css';
|
|
break;
|
|
case 'txt':
|
|
$content_type = 'text/plain';
|
|
break;
|
|
case 'htm':
|
|
case 'html':
|
|
$content_type = 'text/html';
|
|
break;
|
|
case 'xml':
|
|
$content_type = 'text/xml';
|
|
break;
|
|
case 'xsl':
|
|
$content_type = 'text/xsl';
|
|
break;
|
|
case 'mpg':
|
|
case 'mpe':
|
|
case 'mpeg':
|
|
$content_type = 'video/mpeg';
|
|
break;
|
|
case 'qt':
|
|
case 'mov':
|
|
$content_type = 'video/quicktime';
|
|
break;
|
|
case 'avi':
|
|
$content_type = 'video/x-ms-video';
|
|
break;
|
|
case 'eml':
|
|
$content_type = 'message/rfc822';
|
|
break;
|
|
default:
|
|
$content_type = 'binary/octet-stream';
|
|
break;
|
|
}
|
|
|
|
return $content_type;
|
|
}
|
|
|
|
/**
|
|
* Register this object as stream wrapper client
|
|
*
|
|
* @param string $name
|
|
* @return Zend_Service_Amazon_S3
|
|
*/
|
|
public function registerAsClient($name)
|
|
{
|
|
self::$_wrapperClients[$name] = $this;
|
|
return $this;
|
|
}
|
|
|
|
/**
|
|
* Unregister this object as stream wrapper client
|
|
*
|
|
* @param string $name
|
|
* @return Zend_Service_Amazon_S3
|
|
*/
|
|
public function unregisterAsClient($name)
|
|
{
|
|
unset(self::$_wrapperClients[$name]);
|
|
return $this;
|
|
}
|
|
|
|
/**
|
|
* Get wrapper client for stream type
|
|
*
|
|
* @param string $name
|
|
* @return Zend_Service_Amazon_S3
|
|
*/
|
|
public static function getWrapperClient($name)
|
|
{
|
|
return self::$_wrapperClients[$name];
|
|
}
|
|
|
|
/**
|
|
* Register this object as stream wrapper
|
|
*
|
|
* @param string $name
|
|
* @return Zend_Service_Amazon_S3
|
|
*/
|
|
public function registerStreamWrapper($name='s3')
|
|
{
|
|
/**
|
|
* @see Zend_Service_Amazon_S3_Stream
|
|
*/
|
|
require_once 'Zend/Service/Amazon/S3/Stream.php';
|
|
|
|
stream_register_wrapper($name, 'Zend_Service_Amazon_S3_Stream');
|
|
$this->registerAsClient($name);
|
|
}
|
|
|
|
/**
|
|
* Unregister this object as stream wrapper
|
|
*
|
|
* @param string $name
|
|
* @return Zend_Service_Amazon_S3
|
|
*/
|
|
public function unregisterStreamWrapper($name='s3')
|
|
{
|
|
stream_wrapper_unregister($name);
|
|
$this->unregisterAsClient($name);
|
|
}
|
|
}
|