async43 0.0.4

Asynchronous WHOIS client for Python using asyncio. Supports IPv6 and IP rotation.

async43

async43 is an asynchronous Python module for retrieving and parsing WHOIS data for a given domain.

This project is a fork of the excellent python-whois library by Richard Penman. It has been refactored to be fully asynchronous using asyncio and to add modern networking features.

Key Features

• Fully Asynchronous: Built from the ground up with asyncio for high-performance, non-blocking network I/O.
• IPv6 Support: Can query WHOIS servers over IPv6 and prioritizes it if available.
• Outbound IP Rotation: Supports cycling through a list of available IPv6 addresses for outbound connections, useful for bypassing rate-limits.
• Direct WHOIS Queries: Connects directly to the appropriate WHOIS server instead of relying on intermediate web services.
• Parsed Data: Converts the raw WHOIS text into a structured Python dictionary.

Installation

Install from PyPI:

pip install async43

Or checkout the latest version from the repository:

git clone https://github.com/devl00p/async43.git
pip install -r requirements.txt

Example Usage

Basic Query

The whois function is a coroutine and must be awaited.

import asyncio
import async43

async def main():
    domain = 'example.com'
    w = await async43.whois(domain)

    print(w.expiration_date)
    # >>> datetime.datetime(2022, 8, 13, 4, 0, tzinfo=tzoffset('UTC', 0))

    print(w)
    # {
    #   "creation_date": "1995-08-14 04:00:00+00:00",
    #   "expiration_date": "2022-08-13 04:00:00+00:00",
    #   ...
    # }

if __name__ == "__main__":
    asyncio.run(main())

IPv6 Outbound IP Rotation

You can provide an iterator of IPv6 addresses to the NICClient to enable outbound IP rotation. This is useful for distributing your queries across multiple source addresses.

import asyncio
import itertools
from async43.whois import NICClient

async def main():
    # Your external function to get a list of available IPv6 addresses
    my_ipv6_addresses = ["2001:db8::1", "2001:db8::2", "2001:db8::3"]
    
    # Create a cycle iterator
    ipv6_cycler = itertools.cycle(my_ipv6_addresses)

    # Instantiate the client with the IP cycler
    client = NICClient(ipv6_cycle=ipv6_cycler)

    # Use the client for your lookups
    # Each await client.whois(...) will use the next IP in the cycle if the destination is IPv6
    result = await client.whois_lookup(None, "example.com", 0)
    print(result)

if __name__ == "__main__":
    asyncio.run(main())

Using a Proxy

Set your environment SOCKS variable. Note that the underlying PySocks library is not asynchronous and will block.

export SOCKS="username:password@proxy_address:port"

Contributing

Pull requests are welcome!

This project maintains the parsing logic from the original python-whois. If you want to add or fix a TLD parser, the process remains the same. See the parser classes in async43/parser.py.

Acknowledgements

This project is a fork of and builds upon the great work done by Richard Penman on python-whois.