common.js
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/**
*
* @author: jiangfeng<jeff.jiang@yoho.cn>
* @date: 16/7/22
*/
'use strict';
const moment = require('moment');
const xml2js = require('xml2js');
const common = {
getPayExpireMin(expire) {
let defaultValue = 120;
if (expire) {
let expireTime = moment(expire, 'YYYY-MM-DD HH:mm:ss');
let diff = expireTime.diff(moment());
return Math.floor(diff / 1000 / 60);
// if (diff > 0) {
// return Math.floor(diff / 1000 / 60);
// } else {
// return 0;
// }
} else {
return defaultValue;
}
},
getPayExpireCouple(expire) {
let start = expire ? moment(expire, 'YYYY-MM-DD HH:mm:ss') : moment();
let end = expire ? moment(expire, 'YYYY-MM-DD HH:mm:ss') : moment();
return {
start: start.subtract(2, 'hours'),
end: end.add(5, 'minutes')
};
},
nonceStr(length) {
length = length || 32;
let chars = 'abcdefghijklmnopqrstuvwxyz0123456789';
let str = '';
for (let i = 0; i < length; i++) {
str += chars[parseInt(Math.random() * length, 10)];
}
return str;
},
toXml(obj, root) {
let xmlBuilder = new xml2js.Builder({
rootName: root || 'xml'
});
return xmlBuilder.buildObject(obj);
},
xml2Obj(xml) {
let xmlParser = new xml2js.Parser({
trim: true,
explicitArray: false
});
return new Promise((resolve, reject) => {
xmlParser.parseString(xml, (err, result) => {
if (err) {
reject(err);
} else {
resolve(result);
}
});
});
},
getPaymentCode(payment) {
let paymentPars = payment.split('_');
if (paymentPars.length !== 2) {
return false;
} else {
return paymentPars[0] * 1;
}
}
};
module.exports = common;