<?php
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/*
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* Copyright (c) 2017-2018 THL A29 Limited, a Tencent company. 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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* 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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namespace TencentCloud\Common;
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use TencentCloud\Common\Exception\TencentCloudSDKException;
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/**
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* 签名类，禁止client引用
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* @package TencentCloud\Common
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* @throws TencentCloudSDKException
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*/
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class Sign
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{
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/**
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* @throws TencentCloudSDKException
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*/
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public static function sign($secretKey, $signStr, $signMethod)
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{
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$signMethodMap = ["HmacSHA1" => "SHA1", "HmacSHA256" => "SHA256"];
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if (!array_key_exists($signMethod, $signMethodMap)) {
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throw new TencentCloudSDKException("signMethod invalid", "signMethod only support (HmacSHA1, HmacSHA256)");
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}
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$signature = base64_encode(hash_hmac($signMethodMap[$signMethod], $signStr, $secretKey, true));
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return $signature;
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}
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public static function signTC3($skey, $date, $service, $str2sign)
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{
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$dateKey = hash_hmac("SHA256", $date, "TC3".$skey, true);
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$serviceKey = hash_hmac("SHA256", $service, $dateKey, true);
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$reqKey = hash_hmac("SHA256", "tc3_request", $serviceKey, true);
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return hash_hmac("SHA256", $str2sign, $reqKey);
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}
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}
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