node.js - 通过 https 代理 https 请求但返回 'unknown protocol:openssl ' 错误

Question

如果我通过“HTTP”代理请求“HTTP”地址，一切都很好

    const rq = require('request-promise'); 
    try {
    let res = rq({
        url: 'http://xxxx',
        timeout: TIME_OUT,
        gzip: true,
        proxy: 'http://112.25.60.32:8080'
    });
    res.then(res => {
        console.log('res');
        console.log(res);
    }).catch(err => {
        console.log(err);
    });
} catch (error) {
    console.log(error);
}

但是如果通过'https'代理请求'https'地址，它将返回'unknown protocol'

RequestError: Error: tunneling socket could not be established, cause=write EPROTO 101057795:error:140770FC:SSL routines:SSL23_GET_SERVER_HELLO:unknown protocol:openssl\ssl\s23_clnt.c:827:

try {
    let res = rq({
        url: 'https://ipinfo.io/', //  https address
        timeout: TIME_OUT,
        gzip: true,
        rejectUnauthorized: false,
        proxy: 'https://149.56.109.24:3128' //  https proxy
    });
    res.then(res => {
        console.log('res');
        console.log(res);
    }).catch(err => {
        console.log(err);
    });
} catch (error) {
    console.log(error);
}

一开始以为是代理地址的问题。但是相同的代理地址在 python 请求模块中工作正常

python code

import requests, os
os.environ['HTTP_PROXY'] = '112.25.60.32:8080'
os.environ['HTTPS_PROXY'] = '149.56.109.24:3128'
try:
    text = requests.get('https://ipinfo.io/').text # request https address
except Exception as e:
    print(e)
    print('connect failed')
print(text) 
# it works fine!  {
  "ip": "149.56.109.24:3128", 
  "hostname": "181.ip-158-69-206.net",
  "city": "Montreal",
  "region": "Quebec",
  "country": "CA",
  "loc": "45.5000,-73.5833",
  "postal": "H3A",
  "org": "AS16276 OVH SAS"
}
# The returned 'ip' information is the 'https' proxy address.

在 StackOverflow 中发现了类似的问题。有人回复说是端口问题。

Here is the link StackOverflow

但我认为这不是端口的问题，因为当我使用 fiddler 代理时，它有效!

Here is my configuration about fiddler

code (by fiddler)

try {
  let res = rq({
    url: 'https://ipinfo.io/',
    timeout: TIME_OUT,
    gzip: true,
    rejectUnauthorized: false,
    proxy: 'http://127.0.0.1:8888' // through fiddler
  });
  res
    .then(res => {
      console.log('res');
      console.log(res); // it works!!
    })
    .catch(err => {
      console.log(err);
    });
} catch (error) {
  console.log(error); 
}

但是根据上面的代码，Proxy改成'149.56.109.24:3128'(没有fiddler)还是会报'unknown protocol:openssl\ssl\s23_clnt.c:827'的错误

那么到底出了什么问题呢？我没有解决。

Answer 1

   proxy: 'https://149.56.109.24:3128' //  https proxy

HTTP 代理将处理 HTTP 和 HTTPS。 HTTPS 的处理方式是直接连接到 HTTP 代理，发出 CONNECT 请求以建立到服务器的隧道，然后将连接升级到该隧道内的 TLS - 这会产生端到端的 HTTPS。

您配置的是通过 HTTPS 访问代理本身，本质上是在 HTTPS 隧道内请求 HTTPS。这很可能不受代理支持，即使用 http:// 访问代理而不是 https://。