@cyanheads/toolkit-mcp-server/build/utils/cache.js

MCP server providing system, network, geolocation, generator, datetime, and security tools

export class Cache {
    cache;
    ttl;
    constructor(ttlMs = 5 * 60 * 1000) {
        this.cache = new Map();
        this.ttl = ttlMs;
    }
    set(key, value) {
        this.cache.set(key, {
            data: value,
            timestamp: Date.now()
        });
    }
    get(key) {
        const entry = this.cache.get(key);
        if (!entry)
            return null;
        const now = Date.now();
        if (now - entry.timestamp > this.ttl) {
            this.cache.delete(key);
            return null;
        }
        return entry.data;
    }
    clear() {
        this.cache.clear();
    }
    prune() {
        const now = Date.now();
        for (const [key, entry] of this.cache.entries()) {
            if (now - entry.timestamp > this.ttl) {
                this.cache.delete(key);
            }
        }
    }
}
export class RateLimiter {
    windowMs;
    maxRequests;
    requests;
    resetTime;
    constructor(maxRequests = 45, windowMs = 60000) {
        this.windowMs = windowMs;
        this.maxRequests = maxRequests;
        this.requests = 0;
        this.resetTime = Date.now() + windowMs;
    }
    canMakeRequest() {
        const now = Date.now();
        if (now >= this.resetTime) {
            this.requests = 0;
            this.resetTime = now + this.windowMs;
        }
        return this.requests < this.maxRequests;
    }
    incrementRequests() {
        this.requests++;
    }
    getRemainingRequests() {
        const now = Date.now();
        if (now >= this.resetTime) {
            this.requests = 0;
            this.resetTime = now + this.windowMs;
        }
        return Math.max(0, this.maxRequests - this.requests);
    }
    getTimeToReset() {
        return Math.max(0, this.resetTime - Date.now());
    }
}