SearXNG Server

import { HttpsProxyAgent } from "https-proxy-agent"; import { HttpProxyAgent } from "http-proxy-agent"; export function createProxyAgent(targetUrl: string) { const proxyUrl = process.env.HTTP_PROXY || process.env.HTTPS_PROXY || process.env.http_proxy || process.env.https_proxy; if (!proxyUrl) { return undefined; } // Validate and normalize proxy URL let parsedProxyUrl: URL; try { parsedProxyUrl = new URL(proxyUrl); } catch (error) { throw new Error( `Invalid proxy URL: ${proxyUrl}. ` + "Please provide a valid URL (e.g., http://proxy:8080 or http://user:pass@proxy:8080)" ); } // Ensure proxy protocol is supported if (!['http:', 'https:'].includes(parsedProxyUrl.protocol)) { throw new Error( `Unsupported proxy protocol: ${parsedProxyUrl.protocol}. ` + "Only HTTP and HTTPS proxies are supported." ); } // Reconstruct base proxy URL preserving credentials but removing any path const auth = parsedProxyUrl.username ? (parsedProxyUrl.password ? `${parsedProxyUrl.username}:${parsedProxyUrl.password}@` : `${parsedProxyUrl.username}@`) : ''; const normalizedProxyUrl = `${parsedProxyUrl.protocol}//${auth}${parsedProxyUrl.host}`; // Determine if target URL is HTTPS const isHttps = targetUrl.startsWith('https:'); // Create appropriate agent based on target protocol return isHttps ? new HttpsProxyAgent(normalizedProxyUrl) : new HttpProxyAgent(normalizedProxyUrl); }