com.taotao.boot.sms.netease.CheckSumBuilder Maven / Gradle / Ivy

Go to download
Show more of this group Show more artifacts with this name
Show all versions of taotao-boot-starter-sms-netease Show documentation
taotao-boot-starter-sms-netease
The newest version!
/*
 * Copyright (c) 2020-2030, Shuigedeng ([email protected] & https://blog.taotaocloud.top/).
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      https://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License 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.
 */

package com.taotao.boot.sms.netease;

import java.security.MessageDigest;

/**
 * 校验和建设者
 *
 * @author shuigedeng
 * @version 2022.04
 * @since 2022-04-27 17:51:24
 */
public class CheckSumBuilder {

    private static final char[] HEX_DIGITS = {
        '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f'
    };

    /**
     * 计算并获取CheckSum
     *
     * @param appSecret 密钥
     * @param nonce 随机数
     * @param curTime 当前时间
     * @return checkSum
     */
    public static String getCheckSum(String appSecret, String nonce, String curTime) {
        return encode("sha1", appSecret + nonce + curTime);
    }

    /**
     * 计算并获取md5值
     *
     * @param requestBody 请求内容
     * @return md5值
     */
    public static String getMd5(String requestBody) {
        return encode("md5", requestBody);
    }

    private static String encode(String algorithm, String value) {
        if (value == null) {
            return null;
        }
        try {
            MessageDigest messageDigest = MessageDigest.getInstance(algorithm);
            messageDigest.update(value.getBytes());
            return getFormattedText(messageDigest.digest());
        } catch (Exception e) {
            throw new RuntimeException(e);
        }
    }

    private static String getFormattedText(byte[] bytes) {
        int len = bytes.length;
        StringBuilder buf = new StringBuilder(len * 2);
        for (byte aByte : bytes) {
            buf.append(HEX_DIGITS[(aByte >> 4) & 0x0f]);
            buf.append(HEX_DIGITS[aByte & 0x0f]);
        }
        return buf.toString();
    }
}