zhywpt-sp/utils/network/encryption.js

import {
	ksort
} from "../util/ksort.js";
import {
	md5
} from "../util/md5.js";
import {
	sha1
} from "../util/sha1.js";
import {
	sm4Key
} from "../network/api.js";
import {
	SM4Util
} from '../util/sm4.js'

const s4 = new SM4Util()

const _signCode = "etc123456"; //签名码

function pad2(n) {
	return n < 10 ? "0" + n : n;
}

//获取时间ymdHis
function getDate() {
	var date = new Date();
	return (
		date.getFullYear().toString() +
		pad2(date.getMonth() + 1) +
		pad2(date.getDate()) +
		pad2(date.getHours()) +
		pad2(date.getMinutes()) +
		pad2(date.getSeconds()) +
		pad2(date.getMilliseconds())
	);
}

/**
 * 获取随机数
 */
function generateMixed(n) {
	var chars = ["0", "1", "2", "3", "4", "5", "6", "7", "8", "9"];
	var res = "";
	for (var i = 0; i < n; i++) {
		var id = Math.ceil(Math.random() * 8);
		res += chars[id];
	}
	return res;
}

//签名
function sign(data, signCode) {
	data = ksort(data);
	var signStr = "";
	var requestId = false;
	for (let k in data) {
		if (k != "sign") {
			if (k == "requestId") {
				requestId = data[k];
			}
			signStr += k + "=" + data[k] + "&";
		}
	}
	signStr += "signCode=" + signCode;
	// console.log("signStr*************"+signStr);
	if (!requestId) {
		return false;
	}
	signStr = md5(signStr);
	signStr = signStr.toUpperCase();
	// console.log('MD5**************' + signStr);
	signStr += requestId;
	// console.log('requestId**************' + signStr);
	signStr = sha1(signStr);
	signStr = signStr.toUpperCase();
	// console.log('SHA1**************' + signStr);
	return signStr;
}

//arrayToJsonString array 转json字符串
export function arrayToJsonString(array) {
	var json = {};
	for (var i in array) {
		if (array[i] instanceof Array) {
			json[i] = {};
			for (var o in array[i]) {
				if (array[i][o] instanceof Array) {
					json[i][o] = {};
					for (var q in array[i][o]) {
						if (array[i][o][q] instanceof Array) {
							json[i][o][q] = {};
							for (var w in array[i][o][q]) {
								json[i][o][q][w] = array[i][o][q][w];
							}
						} else {
							json[i][o][q] = array[i][o][q];
						}
					}
				} else {
					json[i][o] = array[i][o];
				}
			}
		} else {
			json[i] = array[i];
		}
	}
	return JSON.stringify(json);
}

/**
 *json字符串转换成json对象
 */
export function stringToJson(data) {
	return JSON.parse(data);
}

//array转json对象
export function arrayToJson(array) {
	return stringToJson(arrayToJsonString(array));
}

//时间格式化
export function formatTime(date) {
	const year = date.getFullYear();
	const month = date.getMonth() + 1;
	const day = date.getDate();
	const hour = date.getHours();
	const minute = date.getMinutes();
	const second = date.getSeconds();

	return `${[year, month, day].map(formatNumber).join("-")}T${[
    hour,
    minute,
    second,
  ]
    .map(formatNumber)
    .join(":")}`;
}

function formatNumber(n) {
	n = n.toString();
	return n[1] ? n : `0${n}`;
}

function textToBase64(text, key, iv) {
	const keyBytes = new TextEncoder().encode(key);
	const ivBytes = new TextEncoder().encode(iv);
	const textBytes = new TextEncoder().encode(text);
	const encrypted = sm4.encrypt(textBytes, keyBytes, {
		mode: 'cbc',
		iv: ivBytes
	});
	console.log('输出内容', encrypted)
	const base64 = uni.arrayBufferToBase64(encrypted);
	return base64;
}

//调用中台参数
export function encryption(ifCode, subdata, type) {
	var requestData = new Array();
	requestData["ifCode"] = ifCode;
	requestData["appId"] = "52030131"; // || "admin001"
	requestData["signType"] = "MD5"; // || "NONE"
	requestData["encryptType"] = "SM4";
	requestData["reqId"] = requestData["appId"] + "_" + getDate() + "_" + generateMixed(5);
	requestData["timestamp"] = formatTime(new Date());
	requestData["bizContent"] = s4.encryptData_CBC(subdata, sm4Key)
	requestData["sign"] = md5(
		"bizContent=" + requestData["bizContent"] +
		"&signType=" + requestData["signType"] +
		"&encryptType=" + requestData["encryptType"] +
		"&timestamp=" + requestData["timestamp"] +
		"&ifCode=" + requestData["ifCode"]
	);
	let endData = arrayToJson(requestData);
	return endData;
}