86 lines
2.4 KiB
PHP
86 lines
2.4 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;
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use Guzzle\Http\Url;
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/**
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* Utility class for parsing regions and services from URLs
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*/
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class HostNameUtils
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{
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const DEFAULT_REGION = 'us-east-1';
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const DEFAULT_GOV_REGION = 'us-gov-west-1';
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/**
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* Parse the AWS region name from a URL
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*
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*
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* @param Url $url HTTP URL
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*
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* @return string
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* @link http://docs.aws.amazon.com/general/latest/gr/rande.html
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*/
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public static function parseRegionName(Url $url)
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{
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// If we don't recognize the domain, just return the default
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if (substr($url->getHost(), -14) != '.amazonaws.com') {
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return self::DEFAULT_REGION;
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}
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$serviceAndRegion = substr($url->getHost(), 0, -14);
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// Special handling for S3 regions
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$separator = strpos($serviceAndRegion, 's3') === 0 ? '-' : '.';
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$separatorPos = strpos($serviceAndRegion, $separator);
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// If don't detect a separator, then return the default region
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if ($separatorPos === false) {
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return self::DEFAULT_REGION;
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}
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$region = substr($serviceAndRegion, $separatorPos + 1);
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// All GOV regions currently use the default GOV region
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if ($region == 'us-gov') {
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return self::DEFAULT_GOV_REGION;
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}
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return $region;
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}
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/**
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* Parse the AWS service name from a URL
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*
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* @param Url $url HTTP URL
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*
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* @return string Returns a service name (or empty string)
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* @link http://docs.aws.amazon.com/general/latest/gr/rande.html
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*/
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public static function parseServiceName(Url $url)
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{
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// The service name is the first part of the host
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$parts = explode('.', $url->getHost(), 2);
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// Special handling for S3
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if (stripos($parts[0], 's3') === 0) {
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return 's3';
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}
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return $parts[0];
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}
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}
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