import md5 from 'md5'
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//签名密钥串(前后端要一致，正式发布请自行修改)
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const signatureSecret = "dd05f1c54d63749eda95f9fa6d49v442a";
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export default class signMd5Utils {
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/**
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* json参数升序
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* @param jsonObj 发送参数
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*/
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static sortAsc(jsonObj) {
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let arr = new Array();
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let num = 0;
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for (let i in jsonObj) {
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arr[num] = i;
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num++;
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}
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let sortArr = arr.sort();
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let sortObj = {};
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for (let i in sortArr) {
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sortObj[sortArr[i]] = jsonObj[sortArr[i]];
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}
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return sortObj;
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}
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/**
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* @param url 请求的url,应该包含请求参数(url的?后面的参数)
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* @param requestParams 请求参数(POST的JSON参数)
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* @returns {string} 获取签名
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*/
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static getSign(url, requestParams) {
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let urlParams = this.parseQueryString(url);
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let jsonObj = this.mergeObject(urlParams, requestParams);
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//console.log("sign jsonObj: ",jsonObj)
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let requestBody = this.sortAsc(jsonObj);
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console.log("sign requestBody: ",requestBody)
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return md5(JSON.stringify(requestBody) + signatureSecret).toUpperCase();
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}
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/**
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* @param url 请求的url
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* @returns {{}} 将url中请求参数组装成json对象(url的?后面的参数)
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*/
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static parseQueryString(url) {
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let urlReg = /^[^\?]+\?([\w\W]+)$/,
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paramReg = /([^&=]+)=([\w\W]*?)(&|$|#)/g,
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urlArray = urlReg.exec(url),
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result = {};
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// 获取URL上最后带逗号的参数变量 sys/dict/getDictItems/sys_user,realname,username
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//【这边条件没有encode】带条件参数例子：/sys/dict/getDictItems/sys_user,realname,id,username!='admin'%20order%20by%20create_time
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let lastpathVariable = url.substring(url.lastIndexOf('/') + 1);
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if(lastpathVariable.includes(",")){
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if(lastpathVariable.includes("?")){
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lastpathVariable = lastpathVariable.substring(0, lastpathVariable.indexOf("?"));
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}
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//解决Sign 签名校验失败 #2728
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result["x-path-variable"] = decodeURIComponent(lastpathVariable);
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}
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if (urlArray && urlArray[1]) {
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let paramString = urlArray[1], paramResult;
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while ((paramResult = paramReg.exec(paramString)) != null) {
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//数字值转为string类型，前后端加密规则保持一致
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if(this.myIsNaN(paramResult[2])){
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paramResult[2] = paramResult[2].toString()
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}
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result[paramResult[1]] = paramResult[2];
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}
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}
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return result;
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}
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/**
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* @returns {*} 将两个对象合并成一个
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*/
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static mergeObject(objectOne, objectTwo) {
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if (objectTwo && Object.keys(objectTwo).length > 0) {
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for (let key in objectTwo) {
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if (objectTwo.hasOwnProperty(key) === true) {
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//数字值转为string类型，前后端加密规则保持一致
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if(this.myIsNaN(objectTwo[key])){
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objectTwo[key] = objectTwo[key].toString()
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}
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objectOne[key] = objectTwo[key];
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}
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}
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}
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return objectOne;
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}
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static urlEncode(param, key, encode) {
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if (param == null) return '';
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let paramStr = '';
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let t = typeof (param);
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if (t == 'string' || t == 'number' || t == 'boolean') {
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paramStr += '&' + key + '=' + ((encode == null || encode) ? encodeURIComponent(param) : param);
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} else {
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for (let i in param) {
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let k = key == null ? i : key + (param instanceof Array ? '[' + i + ']' : '.' + i);
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paramStr += this.urlEncode(param[i], k, encode);
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}
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}
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return paramStr;
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};
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/**
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* 接口签名用 生成header中的时间戳
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* @returns {number}
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*/
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static getTimestamp(){
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return new Date().getTime()
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}
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// /**
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// * 获取客户端时间（签名参数 X_TIMESTAMP）
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// * @returns {string}
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// */
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// static getDateTimeToString() {
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// const date_ = new Date()
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// const year = date_.getFullYear()
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// let month = date_.getMonth() + 1
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// let day = date_.getDate()
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// if (month < 10) month = '0' + month
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// if (day < 10) day = '0' + day
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// let hours = date_.getHours()
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// let mins = date_.getMinutes()
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// let secs = date_.getSeconds()
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// const msecs = date_.getMilliseconds()
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// if (hours < 10) hours = '0' + hours
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// if (mins < 10) mins = '0' + mins
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// if (secs < 10) secs = '0' + secs
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// if (msecs < 10) secs = '0' + msecs
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// return year + '' + month + '' + day + '' + hours + '' + mins + '' + secs
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// }
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// true:数值型的，false：非数值型
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static myIsNaN(value) {
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return typeof value === 'number' && !isNaN(value);
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}
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}
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