<?php /** * Zend Framework * * LICENSE * * This source file is subject to the new BSD license that is bundled * with this package in the file LICENSE.txt. * It is also available through the world-wide-web at this URL: * http://framework.zend.com/license/new-bsd * If you did not receive a copy of the license and are unable to * obtain it through the world-wide-web, please send an email * to license@zend.com so we can send you a copy immediately. * * @category Zend * @package Zend_Service_Amazon * @subpackage Authentication * @copyright Copyright (c) 2005-2014 Zend Technologies USA Inc. (http://www.zend.com) * @license http://framework.zend.com/license/new-bsd New BSD License */ /** * @see Zend_Service_Amazon_Authentication */ require_once 'Zend/Service/Amazon/Authentication.php'; /** * @see Zend_Crypt_Hmac */ require_once 'Zend/Crypt/Hmac.php'; /** * @category Zend * @package Zend_Service_Amazon * @subpackage Authentication * @copyright Copyright (c) 2005-2014 Zend Technologies USA Inc. (http://www.zend.com) * @license http://framework.zend.com/license/new-bsd New BSD License */ class Zend_Service_Amazon_Authentication_S3 extends Zend_Service_Amazon_Authentication { /** * Add the S3 Authorization signature to the request headers * * @param string $method * @param string $path * @param array &$headers * @return string */ public function generateSignature($method, $path, &$headers) { if (! is_array($headers)) { $headers = array($headers); } $type = $md5 = $date = ''; // Search for the Content-type, Content-MD5 and Date headers foreach ($headers as $key => $val) { if (strcasecmp($key, 'content-type') == 0) { $type = $val; } else if (strcasecmp($key, 'content-md5') == 0) { $md5 = $val; } else if (strcasecmp($key, 'date') == 0) { $date = $val; } } // If we have an x-amz-date header, use that instead of the normal Date if (isset($headers['x-amz-date']) && isset($date)) { $date = ''; } $sig_str = "$method\n$md5\n$type\n$date\n"; // For x-amz- headers, combine like keys, lowercase them, sort them // alphabetically and remove excess spaces around values $amz_headers = array(); foreach ($headers as $key => $val) { $key = strtolower($key); if (substr($key, 0, 6) == 'x-amz-') { if (is_array($val)) { $amz_headers[$key] = $val; } else { $amz_headers[$key][] = preg_replace('/\s+/', ' ', $val); } } } if (!empty($amz_headers)) { ksort($amz_headers); foreach ($amz_headers as $key => $val) { $sig_str .= $key . ':' . implode(',', $val) . "\n"; } } $sig_str .= '/'.parse_url($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->_secretKey, 'sha1', utf8_encode($sig_str), Zend_Crypt_Hmac::BINARY)); $headers['Authorization'] = 'AWS ' . $this->_accessKey . ':' . $signature; return $sig_str; } }