node.js – WooCommerce Webhooks Auth(秘密和签名) – 如何使用

我正在尝试在 WooCommerce Webhook API和我的Node.js后端之间创建集成.但是,我无法弄清楚我是如何使用秘密来验证请求的.

secret:一个可选的密钥,用于生成请求主体的HMAC-SHA256哈希,以便接收方可以验证webhook的真实性.

X-WC-Webhook-Signature:有效载荷的Base64编码HMAC-SHA256哈希.

WooCommerce后端:
(Hemmelighed =“秘密”)
enter image description here

Nodejs后端:

var bodyParser = require('body-parser');
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({ extended: false }));

router.post('/', function (req, res) {
    var secret = 'ciPV6gjCbu&efdgbhfgj&¤"#&¤GDA';
    var signature = req.header("x-wc-webhook-signature");
    var hash = CryptoJS.HmacSHA256(req.body, secret).toString(CryptoJS.enc.Base64);

    if(hash === signature){
        res.send('match');
    } else {
        res.send("no match");
    }

});

资料来源:https://github.com/woocommerce/woocommerce/pull/5941

WooCommerce REST API source

哈希和签名不匹配.怎么了?

更新:
console.log返回以下值:

hash:pU9kXddJPY9MG9i2ZFLNTu3TXZA 85pnwfPqMr0dg0 =

签名:PjKImjr9Hk9MmIdUMc pEmCqBoRXA5f3Ac6tnji7exU =

hash(不带.toString(CryptoJS.enc.Base64)):a54f645dd7493d8f4c1bd8b66452cd4eedd35d903efbce699f07cfa8caf4760d

The signature needs to be checked against the body and not the JSON it contains. i.e. the raw bytes of the req.body.

首先修改bodyParser:

const rawBodySaver = (req, res, buf, encoding) => {
  if (buf && buf.length) {
    req.rawBody = buf.toString(encoding || 'utf8');
  }
};

app.use(bodyParser.json({ verify: rawBodySaver }));
app.use(bodyParser.urlencoded({ verify: rawBodySaver, extended: true }));
app.use(bodyParser.raw({ verify: rawBodySaver, type: '*/*' }));

然后,使用crypto(它与节点一起分发,你不需要npm安装任何东西.)

import crypto from 'crypto'; //Let's try with built-in crypto lib instead of cryptoJS

router.post('/', function (req, res) {
  const secret = 'ciPV6gjCbu&efdgbhfgj&¤"#&¤GDA';
  const signature = req.header("X-WC-Webhook-Signature");

  const hash = crypto.createHmac('SHA256', secret).update(req.rawBody).digest('base64');

  if(hash === signature){
    res.send('match');
  } else {
    res.send("no match");
  }
});
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