37 lines
1.1 KiB
JavaScript
37 lines
1.1 KiB
JavaScript
const storage = require('../storage');
|
|
const crypto = require('crypto');
|
|
|
|
function validateID(route_id) {
|
|
return route_id.match(/^[0-9a-fA-F]{10}$/) !== null;
|
|
}
|
|
|
|
module.exports = async function(req, res) {
|
|
const id = req.params.id;
|
|
if (!validateID(id)) {
|
|
return res.sendStatus(404);
|
|
}
|
|
if (!req.body.auth) {
|
|
return res.sendStatus(400);
|
|
}
|
|
|
|
try {
|
|
const auth = req.header('Authorization').split(' ')[1];
|
|
const meta = await storage.metadata(id);
|
|
const hmac = crypto.createHmac('sha256', Buffer.from(meta.auth, 'base64'));
|
|
hmac.update(Buffer.from(meta.nonce, 'base64'));
|
|
const verifyHash = hmac.digest();
|
|
if (!verifyHash.equals(Buffer.from(auth, 'base64'))) {
|
|
res.set('WWW-Authenticate', `send-v1 ${meta.nonce}`);
|
|
return res.sendStatus(401);
|
|
}
|
|
const nonce = crypto.randomBytes(16).toString('base64');
|
|
storage.setField(id, 'nonce', nonce);
|
|
res.set('WWW-Authenticate', `send-v1 ${nonce}`);
|
|
} catch (e) {
|
|
res.sendStatus(404);
|
|
}
|
|
storage.setField(id, 'auth', req.body.auth);
|
|
storage.setField(id, 'pwd', 1);
|
|
res.sendStatus(200);
|
|
};
|