whodap

whodap | Simple RDAP Utility for Python

• Support for asyncio HTTP requests (httpx)
• Leverages the SimpleNamespace type for cleaner RDAP Response traversal
• Keeps the familiar look of WHOIS via the to_whois_dict method for DNS lookups

Quickstart

import asyncio
from pprint import pprint

import whodap

# Looking up a domain name
response = whodap.lookup_domain(domain='bitcoin', tld='org') 
# Equivalent asyncio call
loop = asyncio.get_event_loop()
response = loop.run_until_complete(whodap.aio_lookup_domain(domain='bitcoin', tld='org'))
# "response" is a DomainResponse object. It contains the output from the RDAP lookup.
print(response)
# Traverse the DomainResponse via "dot" notation
print(response.events)
"""
[{
  "eventAction": "last update of RDAP database",
  "eventDate": "2021-04-23T21:50:03"
},
 {
  "eventAction": "registration",
  "eventDate": "2008-08-18T13:19:55"
}, ... ]
"""
# Retrieving the registration date from above:
print(response.events[1].eventDate)
"""
2008-08-18 13:19:55
"""
# Don't want "dot" notation? Use `to_dict` to get the RDAP response as a dictionary
pprint(response.to_dict())
# Use `to_whois_dict` for the familiar look of WHOIS output
pprint(response.to_whois_dict())
"""
{abuse_email: 'abuse@namecheap.com',
 abuse_phone: 'tel:+1.6613102107',
 admin_address: 'P.O. Box 0823-03411, Panama, Panama, PA',
 admin_email: '2603423f6ed44178a3b9d728827aa19a.protect@whoisguard.com',
 admin_fax: 'fax:+51.17057182',
 admin_name: 'WhoisGuard Protected',
 admin_organization: 'WhoisGuard, Inc.',
 admin_phone: 'tel:+507.8365503',
 billing_address: None,
 billing_email: None,
 billing_fax: None,
 billing_name: None,
 billing_organization: None,
 billing_phone: None,
 created_date: datetime.datetime(2008, 8, 18, 13, 19, 55),
 domain_name: 'bitcoin.org',
 expires_date: datetime.datetime(2029, 8, 18, 13, 19, 55),
 nameservers: ['dns1.registrar-servers.com', 'dns2.registrar-servers.com'],
 registrant_address: 'P.O. Box 0823-03411, Panama, Panama, PA',
 registrant_email: '2603423f6ed44178a3b9d728827aa19a.protect@whoisguard.com',
 registrant_fax: 'fax:+51.17057182',
 registrant_name: 'WhoisGuard Protected',
 registrant_organization: None,
 registrant_phone: 'tel:+507.8365503',
 registrar_address: '4600 E Washington St #305, Phoenix, Arizona, 85034',
 registrar_email: 'support@namecheap.com',
 registrar_fax: None,
 registrar_name: 'NAMECHEAP INC',
 registrar_phone: 'tel:+1.6613102107',
 status: ['client transfer prohibited'],
 technical_address: 'P.O. Box 0823-03411, Panama, Panama, PA',
 technical_email: '2603423f6ed44178a3b9d728827aa19a.protect@whoisguard.com',
 technical_fax: 'fax:+51.17057182',
 technical_name: 'WhoisGuard Protected',
 technical_organization: 'WhoisGuard, Inc.',
 technical_phone: 'tel:+507.8365503',
 updated_date: datetime.datetime(2019, 11, 24, 13, 58, 35)}
"""

Exported Functions and Classes

Object	Description
lookup_domain	Performs an RDAP query for the given Domain and TLD
lookup_ipv4	Performs an RDAP query for the given IPv4 address
lookup_ipv6	Performs an RDAP query for the given IPv6 address
lookup_asn	Performs an RDAP query for the Autonomous System with the given Number
aio_lookup_domain	async counterpart to lookup_domain
aio_lookup_ipv4	async counterpart to lookup_ipv4
aio_lookup_ipv6	async counterpart to lookup_ipv6
aio_lookup_asn	async counterpart to lookup_asn
DNSClient	Reusable client for RDAP DNS queries
IPv4Client	Reusable client for RDAP IPv4 queries
IPv6Client	Reusable client for RDAP IPv6 queries
ASNClient	Reusable client for RDAP ASN queries

Common Usage Patterns

• Using the DNSClient:

import whodap

# Initialize an instance of DNSClient using classmethods: `new_client` or `new_aio_client`
dns_client = whodap.DNSClient.new_client()
for domain, tld in [('google', 'com'), ('google', 'buzz')]:
    response = dns_client.lookup(domain, tld)
    
# Equivalent asyncio call
dns_client = await whodap.DNSClient.new_aio_client()
for domain, tld in [('google', 'com'), ('google', 'buzz')]:
    response = await dns_client.aio_lookup(domain, tld)
    
# Use the DNSClient contextmanagers: `new_client_context` or `new_aio_client_context`
with whodap.DNSClient.new_client_context() as dns_client:
    for domain, tld in [('google', 'com'), ('google', 'buzz')]:
        response = dns_client.lookup(domain, tld)

# Equivalent asyncio call
async with whodap.DNSClient.new_aio_client_context() as dns_client:
    for domain, tld in [('google', 'com'), ('google', 'buzz')]:
        response = await dns_client.aio_lookup(domain, tld)

• Configurable httpx client:

import asyncio

import httpx
import whodap

# Initialize a custom, pre-configured httpx client ...
httpx_client = httpx.Client(proxies=httpx.Proxy('https://user:pw@proxy_url.net'))
# ... or an async client
aio_httpx_client = httpx.AsyncClient(proxies=httpx.Proxy('http://user:pw@proxy_url.net'))

# Three common methods for leveraging httpx clients are outlined below:

# 1) Pass the httpx client directly into the convenience functions: `lookup_domain` or `aio_lookup_domain`
# Important: In this scenario, you are responsible for closing the httpx client.
# In this example, the given httpx client is used as a contextmanager; ensuring it is "closed" when finished.
async with aio_httpx_client:
    futures = []
    for domain, tld in [('google', 'com'), ('google', 'buzz')]:
        task = whodap.aio_lookup_domain(domain, tld, httpx_client=aio_httpx_client)
        futures.append(task)
    await asyncio.gather(*futures)

# 2) Pass the httpx_client into the DNSClient classmethod: `new_client` or `new_aio_client`
aio_dns_client = await whodap.DNSClient.new_aio_client(aio_httpx_client)
result = await aio_dns_client.aio_lookup('google', 'buzz')
await aio_httpx_client.aclose()

# 3) Pass the httpx_client into the DNSClient contextmanagers: `new_client_context` or `new_aio_client_context`
# This method ensures the underlying httpx_client is closed when exiting the "with" block.
async with whodap.DNSClient.new_aio_client_context(aio_httpx_client) as dns_client:
    for domain, tld in [('google', 'com'), ('google', 'buzz')]:
        response = await dns_client.aio_lookup(domain, tld)

• Using the to_whois_dict method and RDAPConformanceException

import logging

from whodap import lookup_domain
from whodap.errors import RDAPConformanceException

logger = logging.getLogger(__name__)

# strict = False (default)
rdap_response = lookup_domain("example", "com")
whois_format = rdap_response.to_whois_dict()
logger.info(f"whois={whois_format}")
# Given a valid RDAP response, the `to_whois_dict` method will attempt to
# convert the RDAP format into a flattened dictionary of WHOIS key/values

# strict = True
try:
    # Unfortunately, there are instances in which the RDAP protocol is not
    # properly implemented by the registrar. By default, the `to_whois_dict`
    # will still attempt to parse the into the WHOIS dictionary. However,
    # there is no guarantee that the information will be correct or non-null. 
    # If your applications rely on accurate information, the `strict=True`
    # parameter will raise an `RDAPConformanceException` when encountering
    # invalid or incorrectly formatted RDAP responses.
    rdap_response = lookup_domain("example", "com")
    whois_format = rdap_response.to_whois_dict(strict=True)
except RDAPConformanceException:
    logger.exception("RDAP response is incorrectly formatted.")

Contributions

• Interested in contributing?
• Have any questions or comments?
• Anything that you'd like to see?
• Anything that doesn't look right?

Please post a question or comment.

Roadmap

[alpha] 0.1.X Release:

• Support for RDAP "domain" queries
• Support for RDAP "ipv4" and "ipv6" queries
• Support for RDAP ASN queries
• Abstract the HTTP Client (httpx is the defacto client for now)
• Add parser utils/helpers for IPv4, IPv6, and ASN Responses (if someone shows interest)
• Add RDAP response validation support leveraging ICANN's tool

RDAP Resources:

• rdap.org
• RFC 9082