package com.by4cloud.platformx.business.utils;
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import javax.crypto.Mac;
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import javax.crypto.spec.SecretKeySpec;
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import java.io.UnsupportedEncodingException;
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import java.net.URLEncoder;
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import java.nio.charset.StandardCharsets;
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import java.security.InvalidKeyException;
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import java.security.NoSuchAlgorithmException;
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import java.util.Base64;
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import java.util.Map;
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import java.util.TreeMap;
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/**
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* 请求开放平台套件授权相关接口的加签类
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* SignHelper
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*
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* syt
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* 2026年5月20日 10:31:44
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*/
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public class SignHelper {
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/**
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* 按参数名排序后依次拼接参数名称与数值， 之后对该字符串使用 HmacSHA256 加签， 加签结果进行 base 64 返回
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*
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*/
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public static String sign(Map<String, Object> params, String suiteSecret) throws
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NoSuchAlgorithmException, UnsupportedEncodingException, InvalidKeyException {
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Map<String, Object> treeMap;
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if (params instanceof TreeMap) {
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treeMap = params;
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} else {
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treeMap = new TreeMap<>(params);
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}
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StringBuilder stringBuilder = new StringBuilder();
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for (Map.Entry<String, Object> entry : treeMap.entrySet()) {
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stringBuilder.append(entry.getKey()).append(entry.getValue());
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}
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Mac mac = Mac.getInstance("HmacSHA256");
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mac.init(new SecretKeySpec(suiteSecret.getBytes(StandardCharsets.UTF_8), "HmacSHA256"));
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byte[] signData = mac.doFinal(stringBuilder.toString().getBytes(StandardCharsets.UTF_8));
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String base64String = Base64.getEncoder().encodeToString(signData);
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return URLEncoder.encode(base64String, "UTF-8");
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}
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}
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