@paroicms/server/dist/admin-backend/logging/naive-rate-limiter.js

The ParoiCMS server

import { ApiError } from "@paroicms/public-server-lib";
const rateLimitMap = new Map();
const INITIAL_LIMIT = 50;
const WINDOW_LIMIT = 10;
const WINDOW_DURATION = 30000;
setInterval(() => {
    const now = Date.now();
    const expiredThreshold = now - WINDOW_DURATION * 2;
    for (const [sessionId, entry] of rateLimitMap.entries()) {
        if (entry.windowStart < expiredThreshold) {
            rateLimitMap.delete(sessionId);
        }
    }
}, WINDOW_DURATION * 3).unref();
export function checkRateLimit(sessionId) {
    const now = Date.now();
    const entry = rateLimitMap.get(sessionId);
    if (!entry) {
        rateLimitMap.set(sessionId, { count: 1, windowStart: now });
        return;
    }
    if (entry.count < INITIAL_LIMIT) {
        ++entry.count;
        return;
    }
    const timeSinceWindowStart = now - entry.windowStart;
    if (timeSinceWindowStart >= WINDOW_DURATION) {
        entry.count = 1;
        entry.windowStart = now;
        return;
    }
    if (entry.count >= WINDOW_LIMIT) {
        throw new ApiError("Rate limit exceeded", 400);
    }
    ++entry.count;
}
//# sourceMappingURL=naive-rate-limiter.js.map