1 files changed, 85 insertions, 0 deletions
diff --git a/apps/files_external/3rdparty/aws-sdk-php/Aws/Common/HostNameUtils.php b/apps/files_external/3rdparty/aws-sdk-php/Aws/Common/HostNameUtils.php
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+++ b/apps/files_external/3rdparty/aws-sdk-php/Aws/Common/HostNameUtils.php
@@ -0,0 +1,85 @@
+<?php
+/**
+ * Copyright 2010-2013 Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License").
+ * You may not use this file except in compliance with the License.
+ * A copy of the License is located at
+ *
+ * http://aws.amazon.com/apache2.0
+ *
+ * or in the "license" file accompanying this file. This file is distributed
+ * on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied. See the License for the specific language governing
+ * permissions and limitations under the License.
+ */
+
+namespace Aws\Common;
+
+use Guzzle\Http\Url;
+
+/**
+ * Utility class for parsing regions and services from URLs
+ */
+class HostNameUtils
+{
+    const DEFAULT_REGION = 'us-east-1';
+    const DEFAULT_GOV_REGION = 'us-gov-west-1';
+
+    /**
+     * Parse the AWS region name from a URL
+     *
+     *
+     * @param Url $url HTTP URL
+     *
+     * @return string
+     * @link http://docs.amazonwebservices.com/general/latest/gr/rande.html
+     */
+    public static function parseRegionName(Url $url)
+    {
+        // If we don't recognize the domain, just return the default
+        if (substr($url->getHost(), -14) != '.amazonaws.com') {
+            return self::DEFAULT_REGION;
+        }
+
+        $serviceAndRegion = substr($url->getHost(), 0, -14);
+        // Special handling for S3 regions
+        $separator = strpos($serviceAndRegion, 's3') === 0 ? '-' : '.';
+        $separatorPos = strpos($serviceAndRegion, $separator);
+
+        // If don't detect a separator, then return the default region
+        if ($separatorPos === false) {
+            return self::DEFAULT_REGION;
+        }
+
+        $region = substr($serviceAndRegion, $separatorPos + 1);
+
+        // All GOV regions currently use the default GOV region
+        if ($region == 'us-gov') {
+            return self::DEFAULT_GOV_REGION;
+        }
+
+        return $region;
+    }
+
+    /**
+     * Parse the AWS service name from a URL
+     *
+     * @param Url $url HTTP URL
+     *
+     * @return string Returns a service name (or empty string)
+     * @link http://docs.amazonwebservices.com/general/latest/gr/rande.html
+     */
+    public static function parseServiceName(Url $url)
+    {
+        // The service name is the first part of the host
+        $parts = explode('.', $url->getHost(), 2);
+
+        // Special handling for S3
+        if (stripos($parts[0], 's3') === 0) {
+            return 's3';
+        }
+
+        return $parts[0];
+    }
+}