node.js 支付寶完整支付、網頁支付、當面付款、訂單查詢、簽名校驗
阿新 • • 發佈：2019-01-01
網頁支付，我們知道是直接使用URl進行調整支付
https://openapi.alipay.com/gateway.do然後後面帶什麼引數呢？
這是本地：
然後ajax請求得到引數然後跳轉
router.get('/pay', function(req, res, next) {
var url= ali.webPay({
body: "ttt",
subject: "ttt1",
outTradeId: "201503200101010222",
timeout: '90m',
amount: "0.1",
sellerId: '' 
思路就是
首先得到簽名
簽名需要這兩個檔案
接下來是方法了
首先是封裝好的兩個js
alipay.js
/**
* Created by ference on 2017/4/8.
*/ utl.js
/**
* Created by ference on 2017/4/8.
*/
var crypto = require('crypto');
var request = require('request');
var utl = module.exports = {};
Date.prototype.format = function (fmt) {
var o = {
"M+": this.getMonth() + 1, //月份
"d+": this.getDate(), //日
"h+": this.getHours(), //小時
"m+": this.getMinutes(), //分
"s+": this.getSeconds(), //秒
"q+": Math.floor((this.getMonth() + 3) / 3), //季度
"S": this.getMilliseconds() //毫秒
};
if (/(y+)/.test(fmt)) fmt = fmt.replace(RegExp.$1, (this.getFullYear() + "").substr(4 - RegExp.$1.length));
for (var k in o)
if (new RegExp("(" + k + ")").test(fmt)) fmt = fmt.replace(RegExp.$1, (RegExp.$1.length == 1) ? (o[k]) : (("00" + o[k]).substr(("" + o[k]).length)));
return fmt;
}
/**
* 淺拷貝
* @param obj
* @returns {{}}
*/
utl.copy = function (obj) {
var ret = {};
for(var k in obj) {
ret[k] = obj[k];
}
return ret;
}
/**
* 對請求引數進行組裝、編碼、簽名，返回已組裝好籤名的引數字串
* @param {{Object} params 請求引數
* @param {String} privateKey 商戶應用私鑰
* @param {String} [signType] 簽名型別 'RSA2' or 'RSA'
* @returns {String}
*/
utl.processParams = function (params, privateKey, signType) {
var ret = utl.encodeParams(params);
var sign = utl.sign(ret.unencode, privateKey, signType);
return ret.encode + '&sign=' + encodeURIComponent(sign);
};
/**
* 對請求引數進行組裝、編碼
* @param {Object} params 請求引數
* @returns {Object}
*/
utl.encodeParams = function (params) {
var keys = [];
for(var k in params) {
var v = params[k];
if (params[k] !== undefined && params[k] !== "") keys.push(k);
}
keys.sort();
var unencodeStr = "";
var encodeStr = "";
var len = keys.length;
for(var i = 0; i < len; ++i) {
var k = keys[i];
if(i !== 0) {
unencodeStr += '&';
encodeStr += '&';
}
unencodeStr += k + '=' + params[k];
encodeStr += k + '=' + encodeURIComponent(params[k]);
}
return {unencode:unencodeStr, encode:encodeStr};
};
/**
* 對字串進行簽名驗證
* @param {String} str 要驗證的引數字串
* @param {String} sign 要驗證的簽名
* @param {String} publicKey 支付寶公鑰
* @param {String} [signType] 簽名型別
* @returns {Boolean}
*/
utl.signVerify = function (str, sign, publicKey, signType) {
var verify;
if(signType === 'RSA2') {
verify = crypto.createVerify('RSA-SHA256');
} else {
verify = crypto.createVerify('RSA-SHA1');
}
verify.update(str, 'utf8');
var result = verify.verify(publicKey, sign, 'base64');
return result;
};
/**
* 對字串進行簽名
* @param {String} str 要簽名的字串
* @param {String} privateKey 商戶應用私鑰
* @param {String} [signType] 簽名型別
* @returns {String}
*/
utl.sign = function (str, privateKey, signType) {
var sha;
if(signType === 'RSA2') {
sha = crypto.createSign('RSA-SHA256');
} else {
sha = crypto.createSign('RSA-SHA1');
}
sha.update(str, 'utf8');
return sha.sign(privateKey, 'base64');
}
/**
* 傳送請求 https://github.com/request/request
* @param {Object} opts 請求引數
* @param {String} opts.url 請求地址
* @param {String} opts.method GET|POST|PUT...
* @param {String} [opts.type] text/xml | application/json | application/x-www-form-urlencoded ...
* @param {Object} [opts.headers] {}
* @param {Object} [opts.qs] query引數
* @param {Buffer|String|ReadStream} [opts.body] 請求體
* @param {Object} [opts.form] form表單
* @returns {Promise.<Object>} resolve({response, body})
*/
utl.request = function(opts){
return new Promise(function(resolve, reject){
request(opts, function(err, res, body){
if(err){
reject(err);
return;
}
let ret = {response:res, body:body};
ret.ok = function() {
return res.statusCode === 200;
};
ret.json = function () {
if(res.body) return JSON.parse(res.body);
return null;
};
resolve(ret);
});
});
};然後是調取
var express = require('express');
var router = express.Router();
var path = require('path');
var Alipay = require('../lib/alipay');
var utl = require('../lib/utl');
var outTradeId = Date.now().toString();
var ali = new Alipay({
appId: '2017060207410259',
notifyUrl: 'http://127.0.0.1:3000/',
rsaPrivate: path.resolve('./routes/pem/app_private_key_nonjava.pem'),
rsaPublic: path.resolve('./routes/pem/alipay_public_key_nonjava.pem'),
sandbox: true,
signType: 'RSA2'
});
/* GET home page. */
router.get('/', function(req, res, next) {
res.render('index');
});
router.get('/pay', function(req, res, next) {
var url= ali.webPay({
body: "ttt",
subject: "ttt1",
outTradeId: "201503200101010222",
timeout: '90m',
amount: "0.1",
sellerId: '',
product_code: 'FAST_INSTANT_TRADE_PAY',
goods_type: "1",
return_url:"127.0.0.1:300",
})
var url_API = 'https://openapi.alipay.com/gateway.do?'+url;
res.json({url:url_API})
});
module.exports = router;