<?php
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/*
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations
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* under the License.
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*/
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define("LOCATION_SERVICE_PRODUCT_NAME", "Location");
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define("LOCATION_SERVICE_DOMAIN", "location.aliyuncs.com");
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define("LOCATION_SERVICE_VERSION", "2015-06-12");
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define("LOCATION_SERVICE_DESCRIBE_ENDPOINT_ACTION", "DescribeEndpoints");
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define("LOCATION_SERVICE_REGION", "cn-hangzhou");
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define("CACHE_EXPIRE_TIME", 3600);
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class DescribeEndpointRequest extends RpcAcsRequest
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{
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function __construct($id, $serviceCode, $endPointType) {
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parent::__construct(LOCATION_SERVICE_PRODUCT_NAME, LOCATION_SERVICE_VERSION, LOCATION_SERVICE_DESCRIBE_ENDPOINT_ACTION);
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$this->queryParameters["Id"] = $id;
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$this->queryParameters["ServiceCode"] = $serviceCode;
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$this->queryParameters["Type"] = $endPointType;
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$this->setRegionId(LOCATION_SERVICE_REGION);
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$this->setAcceptFormat("JSON");
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}
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}
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class LocationService
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{
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private $clientProfile;
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public static $cache = array();
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public static $lastClearTimePerProduct = array();
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public static $serviceDomain = LOCATION_SERVICE_DOMAIN;
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function __construct($clientProfile) {
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$this->clientProfile = $clientProfile;
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}
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public function findProductDomain($regionId, $serviceCode, $endPointType, $product)
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{
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$key = $regionId.'#'.$product;
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@$domain = self::$cache[$key];
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if ($domain == null || $this->checkCacheIsExpire($key) == true)
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{
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$domain = $this->findProductDomainFromLocationService($regionId, $serviceCode, $endPointType);
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self::$cache[$key] = $domain;
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}
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return $domain;
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}
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public static function addEndPoint($regionId, $product, $domain)
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{
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$key = $regionId.'#'.$product;
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self::$cache[$key] = $domain;
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$lastClearTime = mktime(0, 0, 0, 1, 1, 2999);
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self::$lastClearTimePerProduct[$key] = $lastClearTime;
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}
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public static function modifyServiceDomain($domain)
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{
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self::$serviceDomain = $domain;
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}
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private function checkCacheIsExpire($key)
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{
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$lastClearTime = self::$lastClearTimePerProduct[$key];
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if ($lastClearTime == null)
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{
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$lastClearTime = time();
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self::$lastClearTimePerProduct[$key] = $lastClearTime;
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}
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$now = time();
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$elapsedTime = $now - $lastClearTime;
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if ($elapsedTime > CACHE_EXPIRE_TIME)
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{
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$lastClearTime = time();
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self::$lastClearTimePerProduct[$key] = $lastClearTime;
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return true;
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}
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return false;
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}
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private function findProductDomainFromLocationService($regionId, $serviceCode, $endPointType)
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{
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$request = new DescribeEndpointRequest($regionId, $serviceCode, $endPointType);
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$signer = $this->clientProfile->getSigner();
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$credential = $this->clientProfile->getCredential();
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$requestUrl = $request->composeUrl($signer, $credential, self::$serviceDomain);
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$httpResponse = HttpHelper::curl($requestUrl, $request->getMethod(), null, $request->getHeaders());
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if (!$httpResponse->isSuccess())
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{
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return null;
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}
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$respObj = json_decode($httpResponse->getBody());
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return $respObj->Endpoints->Endpoint[0]->Endpoint;
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}
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}
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