Python package for performing WHOIS queries and parsing WHOIS text output.
Project description
asyncwhois
Async-friendly Python package for performing WHOIS queries and parsing WHOIS text output.
Installation
pip install asyncwhois
Quickstart
import asyncio
from pprint import pprint
import asyncwhois
# standard call
result = asyncwhois.lookup('www.google.com')
# result.query_output # The semi-free text output from the whois server
# result.parser_output # A dictionary of key/values extracted from query_output
# asyncio call
loop = asyncio.get_event_loop()
result = loop.run_until_complete(asyncwhois.aio_lookup('https://bitcoin.org'))
pprint(result.parser_output)
"""
{created: datetime.datetime(2008, 8, 18, 13, 19, 55),
dnssec: 'unsigned',
domain_name: 'bitcoin.org',
expires: datetime.datetime(2029, 8, 18, 13, 19, 55),
name_servers: ['dns1.registrar-servers.com', 'dns2.registrar-servers.com'],
registrant_address: 'P.O. Box 0823-03411',
registrant_city: 'Panama',
registrant_country: 'PA',
registrant_name: 'WhoisGuard Protected',
registrant_organization: 'WhoisGuard, Inc.',
registrant_state: 'Panama',
registrant_zipcode: '',
registrar: 'NAMECHEAP INC',
status: ['clientTransferProhibited '
'https://icann.org/epp#clientTransferProhibited'],
updated: datetime.datetime(2019, 11, 24, 13, 58, 35, 940000)}
"""
Contributions
Parsed output not what you expected? Unfortunately, “the format of responses [from a WHOIS server] follow a semi-free text format”. Therefore, situations will arise where this module does not support parsing the output from a specific server, and you may find yourself needing more control over how parsing happens. Fortunately, you can create customized parsers to suit your needs.
Example: This is a snippet of the output from running the “whois google.be” command.
Domain: google.be
Status: NOT AVAILABLE
Registered: Tue Dec 12 2000
Registrant:
Not shown, please visit www.dnsbelgium.be for webbased whois.
Registrar Technical Contacts:
Organisation: MarkMonitor Inc.
Language: en
Phone: +1.2083895740
Fax: +1.2083895771
Registrar:
Name: MarkMonitor Inc.
Website: http://www.markmonitor.com
Nameservers:
ns2.google.com
ns1.google.com
ns4.google.com
ns3.google.com
Keys:
Flags:
clientTransferProhibited
...
In this case, the “name servers” are listed on separate lines. The default BaseParser regexes won’t find all of these server names. In order to accommodate this extra step, the “parse” method was overwritten within the parser subclass as seen below:
class RegexBE(BaseParser):
_be_expressions = { # the base class (BaseParser) will handle these regexes
BaseKeys.CREATED: r'Registered: *(.+)',
BaseKeys.REGISTRAR: r'Registrar:\n.+Name: *(.+)',
BaseKeys.REGISTRANT_NAME: r'Registrant:\n *(.+)'
}
def __init__(self):
super().__init__()
self.update_reg_expressions(self._be_expressions)
def parse(self, blob: str) -> Dict[str, Any]:
# run base class parsing for other keys
parsed_output = super().parse(blob)
# custom parsing is needed to extract all the name servers
ns_match = re.search(r"Name servers: *(.+)Keys: ", blob, re.DOTALL)
if ns_match:
parsed_output[BaseKeys.NAME_SERVERS] = [m.strip() for m in ns_match.group(1).split('\n') if m.strip()]
return parsed_output
...
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