ghostguild-org/server/middleware/03.rate-limit.js

65 lines
1.7 KiB
JavaScript

import { RateLimiterMemory } from 'rate-limiter-flexible'
// Strict rate limit for auth endpoints
const authLimiter = new RateLimiterMemory({
points: 5, // 5 requests
duration: 300, // per 5 minutes
keyPrefix: 'rl_auth'
})
// Moderate rate limit for payment endpoints
const paymentLimiter = new RateLimiterMemory({
points: 10,
duration: 60,
keyPrefix: 'rl_payment'
})
// Light rate limit for upload endpoints
const uploadLimiter = new RateLimiterMemory({
points: 10,
duration: 60,
keyPrefix: 'rl_upload'
})
// General API rate limit
const generalLimiter = new RateLimiterMemory({
points: 100,
duration: 60,
keyPrefix: 'rl_general'
})
function getClientIp(event) {
return getHeader(event, 'x-forwarded-for')?.split(',')[0]?.trim()
|| getHeader(event, 'x-real-ip')
|| event.node.req.socket.remoteAddress
|| 'unknown'
}
const AUTH_PATHS = new Set(['/api/auth/login', '/api/auth/verify'])
const PAYMENT_PREFIXES = ['/api/helcim/']
const UPLOAD_PATHS = new Set(['/api/upload/image'])
export default defineEventHandler(async (event) => {
const path = getRequestURL(event).pathname
if (!path.startsWith('/api/')) return
const ip = getClientIp(event)
try {
if (AUTH_PATHS.has(path)) {
await authLimiter.consume(ip)
} else if (PAYMENT_PREFIXES.some(p => path.startsWith(p))) {
await paymentLimiter.consume(ip)
} else if (UPLOAD_PATHS.has(path)) {
await uploadLimiter.consume(ip)
} else {
await generalLimiter.consume(ip)
}
} catch (rateLimiterRes) {
setHeader(event, 'Retry-After', Math.ceil(rateLimiterRes.msBeforeNext / 1000))
throw createError({
statusCode: 429,
statusMessage: 'Too many requests. Please try again later.'
})
}
})