<script src="https://cdn.bootcdn.net/ajax/libs/crypto-js/4.1.1/aes.min.js"></script>

npm install crypto-js

yarn add crypto-js

const CryptoJS = require('crypto-js');

import CryptoJS from 'crypto-js';

import CryptoJS from 'crypto-js'

 // ------------AES-------------
 
 function getAesString(data, key, iv) { //加密
   let keys = CryptoJS.enc.Utf8.parse(key)
   let vis = CryptoJS.enc.Utf8.parse(iv)
   let encrypt = CryptoJS.AES.encrypt(data, keys, {
     iv: vis, //iv偏移量 CBC需加偏移量
     mode: CryptoJS.mode.CBC, //CBC模式
     // mode: CryptoJS.mode.ECB, //ECB模式
     padding: CryptoJS.pad.Pkcs7 //padding處理
   });
   // debugger
   return encrypt.toString(); //加密完成后，轉(zhuǎn)換成字符串
 }
 
 function getDAesString(encrypted, key, iv) { // 解密
   var key  = CryptoJS.enc.Utf8.parse(key);
   var iv   = CryptoJS.enc.Utf8.parse(iv);
   var decrypted =CryptoJS.AES.decrypt(encrypted,key,{
     iv:iv,
     mode:CryptoJS.mode.CBC,
     padding:CryptoJS.pad.Pkcs7
   });
   return decrypted.toString(CryptoJS.enc.Utf8);
 }

 // AES 對稱秘鑰加密
 const aes = {
   en: (data, key) => getAesString(data, key.key, key.iv),
   de: (data, key) => getDAesString(data, key.key, key.iv)
 };
 // BASE64
 const base64 = {
   en: (data) => CryptoJS.enc.Base64.stringify(CryptoJS.enc.Utf8.parse(data)),
   de: (data) => CryptoJS.enc.Base64.parse(data).toString(CryptoJS.enc.Utf8)
 };
 // SHA256
 const sha256 = (data) => {
   return CryptoJS.SHA256(data).toString();
 };
 // MD5
 const md5 = (data) => {
 return CryptoJS.MD5(data).toString();
 };
 
 export { aes, md5, sha256, base64 };

import JSEncrypt from 'jsencrypt'
const encrypt = new JSEncrypt();
let publicKey = 'MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCeCDcnFrS7DIRbvZLHreVUzaMbAFy2DYmioxBK606urY4rVR8IgLgUhnyw2/GQ99pyr8lGtqPeOoapantw1XwEVyi74MDxs4UDL8j4OZR1Es7HVGOB0GwKWobdU9cm/1iDwGyouSmijxKyAePg6KsLNgbjDPYZRS11bYEuZ8/RLQIDAQAB';
encrypt.setPublicKey('-----BEGIN PUBLIC KEY-----' + publicKey + '-----END PUBLIC KEY-----')

const random = (length) => {
  var str = Math.random().toString(36).substr(2);
  if (str.length>=length) {
    return str.substr(0, length);
  }
  str += random(length-str.length);
  return str;
}

export const rsaEncode = (src)=>{
  let data = encrypt.encrypt(src); // 加密
  return data
};

export const getKey = ()=>{
  let key = { key: random(16), iv: random(16) }; // 生成密鑰
  let code = rsaEncode(key.key + ',' + key.iv) // 給密鑰加密,在將加密后的密鑰傳給后端
  window.codeArr = window.codeArr || {}
  codeArr[code] = key
  return {
    key, code
  }
};

export const getAesKey = (aes)=>{
  let key = JSON.parse(JSON.stringify(codeArr[aes]))
  delete codeArr[aes]
  return key
};



window.getKey = getKey
window.rsaEncode = rsaEncode

/**
 *
 * http配置
 *
 */
// 引入axios以及element ui中的loading和message組件
import { aes } from "@/util/encrypt.js";
import { getKey, getAesKey } from "@/config/key.js";
import axios from "axios";
import store from "../store";
import router from "../router/router";
import { Loading, Message } from "element-ui";
import { getSessStore, setSessStore } from "@/util/store";


// 超時時間
if (store.online) axios.defaults.timeout = 20000;
else axios.defaults.timeout = 0;
//跨域請求，允許保存cookie
axios.defaults.withCredentials = true;

// 統(tǒng)一加解密
const Unify = {
  // 統(tǒng)一加密方法
  en(data, key) {
    // 1.aes加密
    let aesStr = aes.en(JSON.stringify(data), key);
    return aesStr;
  },
  // 統(tǒng)一解密
  de(aesStr, key) {
    // 1.aes解密
    let dataStr = aes.de(aesStr, key);
    // 3.轉(zhuǎn)json對象
    let data = JSON.parse(dataStr);
    return data;
  },
};

let loadinginstace;
let cfg, msg;
msg = "服務(wù)器君開小差了，請稍后再試";
function ens(data) {
  // debugger
  let src = [...data];
  src = JSON.stringify(src);
  let dataJm = aes.en(src);
  return dataJm;
}
function des(data) {
  // debugger
  let src = [...data];
  let dataJm = aes.de(src);
  dataJm = JSON.parse(dataJm);
  return dataJm;
}
const cancelToken = axios.CancelToken
const source = cancelToken.source()
//HTTPrequest攔截
axios.interceptors.request.use(
  function (config) {
    console.log(config.data, "加密前入?yún)?--");
    config.cancelToken = source.token; // 全局添加cancelToken
    loadinginstace = Loading.service({
      fullscreen: true,
    });
    if (store.getters.token) {
      let info = getSessStore("token");
      // console.log("info", info);
      config.headers["Authorization"] = "Bearer " + info; // 讓每個請求攜帶token-- ['X-Token']為自定義key 請根據(jù)實際情況自行修改
    }
    const contenttype = config.headers.common["Accept"];
    let types = contenttype.includes("application/json");
    let key = getKey(); // 獲取密鑰
    config.headers["aes"] = key.code; // 將 aes 的 code 設(shè)置到請求頭,傳給后端解密
    config.headers["name"] = "send";
    if (types) {
      if (config.method == "post" || config.method == "put") {
        if (config.data) {
          config.headers["crypto"] = true;
          config.headers["content-type"] = "application/json";
          let data = {
            body: config.data,
          };
          let dataJm = Unify.en(data, key.key); // 加密 post 請求參數(shù)
          config.data = dataJm;
        }
      }
    }
    return config;
  },
  (error) => {
    return Promise.reject(error);
  }
);

//HTTPresponse攔截
axios.interceptors.response.use(
  (response) => {
    loadinginstace.close();
    let res = response.data || {};
    if (response.headers["date"]) {
      store.commit("setServiceTime", response.headers.date);
    }
    if (res.crypto) {
      try {
        let key = getAesKey(response.headers.aes); /// 拿到公鑰加密字符串
        if (!key) {
          message("獲取密鑰異常", "error");
          return Promise.reject(res);
        }
        // debugger
        res = Unify.de(res.body, key);
        response.data = res;
      } catch (err) {
        message("系統(tǒng)異常：" + err.message, "error");
        return Promise.reject(err);
      }
    }
    // debugger
    if (res.code === 1) {
      message(res.msg, "error");
      return Promise.reject(res);
    }
    console.log(response, "解密后response");
    return response;
  },
  (error) => {
    console.log("錯誤信息", error);
    loadinginstace.close();
    const res = error.response || {};
    if (res.status === 478 || res.status === 403 || res.status === 401) {
      let resMsg = res.data.msg ? res.data.msg : res.data.data
      if (res.status === 403) {
        message('服務(wù)授權(quán)失敗，請聯(lián)系管理添加權(quán)限！', "error");
      } else {
        message(resMsg, "error");
      }
      let flg = res.data.msg.includes('當(dāng)前登錄狀態(tài)已失效')
      if (res.status === 478 && flg) {
        //token失效
        source.cancel('登錄信息已過期'); // 取消其他正在進行的請求
        store.dispatch("FedLogOut").then(() => {
          router.push("/login"); ///test
        });
      }
    } else if (res.status === 400) {
      message(res.data.error_description, "error");
    } else if (res.status === 202) {
      //三方未綁定
      this.$router.push({
        path: "/",
      });
    } else if (res.status === 503 || res.status === 504) {
      //服務(wù)異常
      message(res.data, "error");
    } else if (
      (res.status === 401 && res.statusText == "Unauthorized") ||
      res.data.error == "invalid_token" ||
      res.data.error == "unauthorized"
    ) {
      //token失效
      store.dispatch("FedLogOut").then(() => {
        router.push("/login"); ///test
      });
    } else {
      message(res.data.message, "error");
    }
    return Promise.reject(error);
  }
);
export function message(text, type) {
  let t = text ? text : "服務(wù)或網(wǎng)絡(luò)異常！"
  Message({
    message: t,
    type: type,
    duration: 30 * 1000,
    center: true,
    showClose: true
  });
}
export default axios;