@gguf/claw
Version:
WhatsApp gateway CLI (Baileys web) with Pi RPC agent
137 lines (135 loc) • 4.39 kB
JavaScript
import { t as pickPrimaryTailnetIPv4 } from "./tailnet-Byp3obcc.js";
import net from "node:net";
//#region src/gateway/net.ts
function isLoopbackAddress(ip) {
if (!ip) return false;
if (ip === "127.0.0.1") return true;
if (ip.startsWith("127.")) return true;
if (ip === "::1") return true;
if (ip.startsWith("::ffff:127.")) return true;
return false;
}
function normalizeIPv4MappedAddress(ip) {
if (ip.startsWith("::ffff:")) return ip.slice(7);
return ip;
}
function normalizeIp(ip) {
const trimmed = ip?.trim();
if (!trimmed) return;
return normalizeIPv4MappedAddress(trimmed.toLowerCase());
}
function stripOptionalPort(ip) {
if (ip.startsWith("[")) {
const end = ip.indexOf("]");
if (end !== -1) return ip.slice(1, end);
}
if (net.isIP(ip)) return ip;
const lastColon = ip.lastIndexOf(":");
if (lastColon > -1 && ip.includes(".") && ip.indexOf(":") === lastColon) {
const candidate = ip.slice(0, lastColon);
if (net.isIP(candidate) === 4) return candidate;
}
return ip;
}
function parseForwardedForClientIp(forwardedFor) {
const raw = forwardedFor?.split(",")[0]?.trim();
if (!raw) return;
return normalizeIp(stripOptionalPort(raw));
}
function parseRealIp(realIp) {
const raw = realIp?.trim();
if (!raw) return;
return normalizeIp(stripOptionalPort(raw));
}
function isTrustedProxyAddress(ip, trustedProxies) {
const normalized = normalizeIp(ip);
if (!normalized || !trustedProxies || trustedProxies.length === 0) return false;
return trustedProxies.some((proxy) => normalizeIp(proxy) === normalized);
}
function resolveGatewayClientIp(params) {
const remote = normalizeIp(params.remoteAddr);
if (!remote) return;
if (!isTrustedProxyAddress(remote, params.trustedProxies)) return remote;
return parseForwardedForClientIp(params.forwardedFor) ?? parseRealIp(params.realIp) ?? remote;
}
/**
* Resolves gateway bind host with fallback strategy.
*
* Modes:
* - loopback: 127.0.0.1 (rarely fails, but handled gracefully)
* - lan: always 0.0.0.0 (no fallback)
* - tailnet: Tailnet IPv4 if available, else loopback
* - auto: Loopback if available, else 0.0.0.0
* - custom: User-specified IP, fallback to 0.0.0.0 if unavailable
*
* @returns The bind address to use (never null)
*/
async function resolveGatewayBindHost(bind, customHost) {
const mode = bind ?? "loopback";
if (mode === "loopback") {
if (await canBindToHost("127.0.0.1")) return "127.0.0.1";
return "0.0.0.0";
}
if (mode === "tailnet") {
const tailnetIP = pickPrimaryTailnetIPv4();
if (tailnetIP && await canBindToHost(tailnetIP)) return tailnetIP;
if (await canBindToHost("127.0.0.1")) return "127.0.0.1";
return "0.0.0.0";
}
if (mode === "lan") return "0.0.0.0";
if (mode === "custom") {
const host = customHost?.trim();
if (!host) return "0.0.0.0";
if (isValidIPv4(host) && await canBindToHost(host)) return host;
return "0.0.0.0";
}
if (mode === "auto") {
if (await canBindToHost("127.0.0.1")) return "127.0.0.1";
return "0.0.0.0";
}
return "0.0.0.0";
}
/**
* Test if we can bind to a specific host address.
* Creates a temporary server, attempts to bind, then closes it.
*
* @param host - The host address to test
* @returns True if we can successfully bind to this address
*/
async function canBindToHost(host) {
return new Promise((resolve) => {
const testServer = net.createServer();
testServer.once("error", () => {
resolve(false);
});
testServer.once("listening", () => {
testServer.close();
resolve(true);
});
testServer.listen(0, host);
});
}
async function resolveGatewayListenHosts(bindHost, opts) {
if (bindHost !== "127.0.0.1") return [bindHost];
if (await (opts?.canBindToHost ?? canBindToHost)("::1")) return [bindHost, "::1"];
return [bindHost];
}
/**
* Validate if a string is a valid IPv4 address.
*
* @param host - The string to validate
* @returns True if valid IPv4 format
*/
function isValidIPv4(host) {
const parts = host.split(".");
if (parts.length !== 4) return false;
return parts.every((part) => {
const n = parseInt(part, 10);
return !Number.isNaN(n) && n >= 0 && n <= 255 && part === String(n);
});
}
function isLoopbackHost(host) {
return isLoopbackAddress(host);
}
//#endregion
export { resolveGatewayBindHost as a, parseForwardedForClientIp as i, isLoopbackHost as n, resolveGatewayClientIp as o, isTrustedProxyAddress as r, resolveGatewayListenHosts as s, isLoopbackAddress as t };