You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
59 lines
1.4 KiB
JavaScript
59 lines
1.4 KiB
JavaScript
const {RateLimiterPostgres, RateLimiterUnion} = require('rate-limiter-flexible');
|
|
const pg = require('../../db/pg')
|
|
|
|
const globalOptions = {
|
|
storeClient: pg,
|
|
tableName: 'sos.rate_limits',
|
|
tableCreated: true
|
|
}
|
|
|
|
function createRateLimit(maxTimes, duration, prefix) {
|
|
return new RateLimiterPostgres({
|
|
...globalOptions,
|
|
points: maxTimes,
|
|
inmemoryBlockOnConsumed: maxTimes,
|
|
keyPrefix: prefix,
|
|
duration
|
|
})
|
|
}
|
|
|
|
module.exports = {};
|
|
|
|
const loginRateLimits = [
|
|
// Once per ten seconds
|
|
createRateLimit(1, 10, 'logon1'),
|
|
// Ten tries in five minutes
|
|
createRateLimit(10, 5 * 60, 'logon2'),
|
|
// One hundred in a day
|
|
createRateLimit(100, 24 * 60 * 60, 'logon3')
|
|
]
|
|
|
|
const loginRateLimitPool = new RateLimiterUnion(...loginRateLimits)
|
|
|
|
module.exports.loginRateLimit = async (req, res) => {
|
|
try {
|
|
await loginRateLimitPool.consume(req.body.email)
|
|
return 'next';
|
|
} catch (limits) {
|
|
const wait = Math.max(...Object.values(limits).map(limit => limit?.msBeforeNext || 1));
|
|
|
|
res.status(429)
|
|
res.set({
|
|
'Retry-After': Math.ceil(wait / 1000)
|
|
})
|
|
|
|
res.json({errors: [{
|
|
param: 'email',
|
|
msg: `Too many password attempts, please wait ${Math.ceil(wait / 1000)} seconds`
|
|
},{
|
|
param: 'password',
|
|
msg: ' '
|
|
}]})
|
|
}
|
|
}
|
|
|
|
module.exports.loginRateLimit.reset = email => Promise.all(
|
|
loginRateLimits.map(rateLimit =>
|
|
rateLimit.delete(email)
|
|
)
|
|
) |