fetch-h2 使用socks5代理[B君笔记][博客]

noscript{position: fixed} fetch-h2 使用socks5代理 fetch-h2创建时间：2025-04-24 22:58:13

突破点

突破点是tls.connect初始化时支持同个options 传入指定socket

// https://github.com/grantila/fetch-h2/blob/80c720197ba42a203140509e0442dc52703afada/lib/context-https.ts#L57

const socket: TLSSocket = connect( parseInt( port, 10 ), host, opts,

例子

import {context} from 'fetch-h2'
import {SocksClient} from 'socks';


// SOCKS5 proxy configuration
const proxyOptions = {
    proxy: {
        host: '127.0.0.1',   // e.g., '127.0.0.1'
        port: 1081,          // Default SOCKS5 port
        type: 5,             // SOCKS5 (use 4 for SOCKS4)
        // Add username/password if required
        // userId: 'user',
        // password: 'pass'
    },
    destination: {
        host: 'proxyguess.bjun.tech',  // Target server host
        port: 9766            // Target server port (TLS)
        
    },
    command: 'connect'     // Establish a TCP connection through the proxy
};
const {socket: proxySocket} = await SocksClient.createConnection(proxyOptions);
const ctx0 = context({
    HttpProtocols: 'http2', session: {
        socket: proxySocket
    }
});


const response = await ctx0.fetch('https://proxyguess.bjun.tech:9766/proxy_check_ez', {});


console.log(await response.text());
/*
{
    "tcp_rtt": "0.404",      
    "h2_rtt": 292.14,        
    "guess use proxy": "100%"
}

 */

简单封装一下

import {context} from 'fetch-h2'
import { SocksClient } from 'socks';


export async function  h2_proxy(proxy,server_host){
    // SOCKS5 proxy configuration
    const proxyOptions = {
        proxy: proxy,
        destination: {
            host: server_host,  // Target server host
            port: 443            // Target server port (TLS)
        },
        command: 'connect'     // Establish a TCP connection through the proxy
    };
    const { socket: proxySocket } = await SocksClient.createConnection(proxyOptions);


    return context({HttpProtocols: 'http2',session:{
            socket: proxySocket
        }})
}

参考

https://nodejs.org/api/tls.html#tlsconnectoptions-callback
https://github.com/grantila/fetch-h2