57 lines
1.1 KiB
JavaScript
57 lines
1.1 KiB
JavaScript
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const isJSON = require('is-json')
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const CryptoJS = require('crypto-js')
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const keyHex = process.env.AES
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function encode (payload, timestamp = 0) {
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const data = {
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payload,
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expired_timestamp: timestamp ? timestamp + Date.now() : 0,
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}
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const messageHex = CryptoJS.enc.Utf8.parse(JSON.stringify(data))
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var encrypted = CryptoJS.AES.encrypt(messageHex, keyHex, {
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mode: CryptoJS.mode.ECB,
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padding: CryptoJS.pad.Pkcs7,
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})
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return encrypted.toString()
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}
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function decode (encrypted) {
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const errmsg = '登录凭证无效'
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try{
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var decrypt = CryptoJS.enc.Utf8.stringify(
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CryptoJS.AES.decrypt(encrypted, keyHex, {
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mode: CryptoJS.mode.ECB,
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padding: CryptoJS.pad.Pkcs7,
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}),
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)
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}catch(err) {
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throw new Error(errmsg)
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}
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if(!isJSON(decrypt)) {
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throw new Error(errmsg)
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}
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var payload = JSON.parse(decrypt)
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if (!payload.payload) {
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throw new Error(errmsg)
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}
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if (Date.now() >= payload.expired_timestamp) {
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throw new Error('登录凭证已过期')
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}
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return payload.payload
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}
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module.exports = {
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encode,
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decode
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}
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