python怎么访问网站,如何使用python aiohttp连接到.onion网站？

最新推荐文章于 2025-07-24 13:15:06 发布

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最新推荐文章于 2025-07-24 13:15:06 发布

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文章标签： python怎么访问网站

本文档描述了使用Python aiohttp库尝试访问.onion网站时遇到的错误，具体为ClientConnectorError。问题在于DNS解析。通过设置`rdns=True`在SocksConnector中启用远程DNS解析，可以成功解决此问题，使得代码能够像requests库那样正常工作。

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I am trying to connect to a .onion site using python. I have tor running on port 9050 and I am getting the following error:

Traceback (most recent call last):

File "/Users/jane/code/test/test.py", line 15, in main

res = await fetch(session, id)

File "/Users/jane/code/test/test.py", line 9, in fetch

async with session.get(url) as res:

File "/usr/local/lib/python3.7/site-packages/aiohttp/client.py", line 1005, in __aenter__

self._resp = await self._coro

File "/usr/local/lib/python3.7/site-packages/aiohttp/client.py", line 476, in _request

timeout=real_timeout

File "/usr/local/lib/python3.7/site-packages/aiohttp/connector.py", line 522, in connect

proto = await self._create_connection(req, traces, timeout)

File "/usr/local/lib/python3.7/site-packages/aiohttp/connector.py", line 854, in _create_connection

req, traces, timeout)

File "/usr/local/lib/python3.7/site-packages/aiohttp/connector.py", line 959, in _create_direct_connection

raise ClientConnectorError(req.connection_key, exc) from exc

aiohttp.client_exceptions.ClientConnectorError: Cannot connect to host intelex7ny6coqno.onion:80 ssl:None [nodename nor servname provided, or not known]

The code:

import asyncio

import aiohttp

from aiohttp_socks import SocksConnector

async def fetch(session, id):

print('Starting {}'.format(id))

url = 'http://intelex7ny6coqno.onion/topic/{}'.format(id)

async with session.get(url) as res:

return res.text

async def main(id):

connector = SocksConnector.from_url('socks5://localhost:9050')

async with aiohttp.ClientSession(connector=connector) as session:

res = await fetch(session, id)

print(res)

if __name__ == '__main__':

ids = ['10', '11', '12']

loop = asyncio.get_event_loop()

future = [asyncio.ensure_future(main(id)) for id in ids]

loop.run_until_complete(asyncio.wait(future))

This code works fine:

import requests

session = requests.session()

session.proxies['http'] = 'socks5h://localhost:9050'

session.proxies['https'] = 'socks5h://localhost:9050'

headers = {

'User-Agent': 'Mozilla/5.0 (Windows NT 6.1; rv:60.0) Gecko/20100101 Firefox/60.0',

'Accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8',

}

res = session.get(url, headers=headers)

print(res)

Why am I getting Cannot connect to host intelex7ny6coqno.onion:80 ssl:None [nodename nor servname provided, or not known]?

What am I missing here?

解决方案

By default it appears to be using the local DNS resolver to asynchronously resolve hostnames. When using requests socks5h you are getting DNS resolution over SOCKS (Tor).

Adding rdns=True appears to work for .onion addresses:

connector = SocksConnector.from_url('socks5://localhost:9050', rdns=True)