/*
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* Copyright (c) 2018-2028, DreamLu All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* Neither the name of the dreamlu.net developer nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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* Author: DreamLu 卢春梦 (596392912@qq.com)
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*/
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package com.vci.ubcs.admin.dingtalk;
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import lombok.RequiredArgsConstructor;
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import lombok.extern.slf4j.Slf4j;
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import org.springframework.http.MediaType;
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import org.springframework.util.Base64Utils;
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import org.springframework.util.StringUtils;
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import org.springframework.web.reactive.function.BodyInserters;
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import org.springframework.web.reactive.function.client.WebClient;
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import org.springframework.web.util.UriUtils;
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import reactor.core.publisher.Mono;
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import javax.crypto.Mac;
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import javax.crypto.SecretKey;
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import javax.crypto.spec.SecretKeySpec;
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import java.net.URI;
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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.HashMap;
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import java.util.Map;
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/**
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* 钉钉 服务
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*
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* @author L.cm
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*/
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@Slf4j
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@RequiredArgsConstructor
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public class DingTalkService {
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private static final String DING_TALK_ROBOT_URL = "https://oapi.dingtalk.com/robot/send?access_token=";
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private final MonitorProperties properties;
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private final WebClient webClient;
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/**
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* 发送消息
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*
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* @param title title
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* @param text 消息
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*/
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public Mono<Void> pushMsg(String title, String text) {
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log.info("钉钉消息:[创建消息体]title:{}, text:{}", title, text);
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HashMap<String, String> params = new HashMap<>(2);
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params.put("title", title);
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params.put("text", text);
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Map<String, Object> body = new HashMap<>(2);
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body.put("msgtype", "markdown");
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body.put("markdown", params);
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log.info("创建消息体 json:{}", body);
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MonitorProperties.DingTalk dingTalk = properties.getDingTalk();
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String accessToken = dingTalk.getAccessToken();
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if (!StringUtils.hasText(accessToken)) {
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log.error("DingTalk alert config accessToken ${monitor.ding-talk.access-token} is blank.");
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return Mono.empty();
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}
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String urlString = DING_TALK_ROBOT_URL + dingTalk.getAccessToken();
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// 有私钥要签名
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String secret = dingTalk.getSecret();
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if (StringUtils.hasText(secret)) {
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long timestamp = System.currentTimeMillis();
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urlString += String.format("×tamp=%s&sign=%s", timestamp, getSign(secret, timestamp));
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}
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return webClient.post()
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.uri(URI.create(urlString))
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.contentType(MediaType.APPLICATION_JSON)
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.body(BodyInserters.fromValue(body))
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.retrieve()
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.bodyToMono(String.class)
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.doOnSuccess((result) -> log.info("钉钉消息:[消息返回]result:{}", result))
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.then();
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}
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private static String getSign(String secret, long timestamp) {
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String stringToSign = timestamp + "\n" + secret;
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byte[] hmacSha256Bytes = digestHmac(stringToSign, secret);
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return UriUtils.encode(Base64Utils.encodeToString(hmacSha256Bytes), StandardCharsets.UTF_8);
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}
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public static byte[] digestHmac(String data, String key) {
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SecretKey secretKey = new SecretKeySpec(key.getBytes(StandardCharsets.UTF_8), "HmacSHA256");
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try {
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Mac mac = Mac.getInstance(secretKey.getAlgorithm());
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mac.init(secretKey);
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return mac.doFinal(data.getBytes(StandardCharsets.UTF_8));
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} catch (NoSuchAlgorithmException | InvalidKeyException e) {
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throw new RuntimeException(e.getMessage());
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}
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}
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}
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