--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/web/Zend/Service/Amazon/Authentication/S3.php	Mon Dec 13 18:29:26 2010 +0100
@@ -0,0 +1,112 @@
+<?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) 2005-2010 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) 2005-2010 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;
+    }
+}