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#!/usr/bin/python3
# -*- coding: utf-8 -*-
import DNS
import unittest
import ipaddress
def assertIsByte(b):
assert b >= 0
assert b <= 255
class TestBase(unittest.TestCase):
def testParseResolvConf(self):
# reset elments set by Base._DiscoverNameServers
DNS.defaults['server'] = []
if 'domain' in DNS.defaults:
del DNS.defaults['domain']
self.assertEqual(len(DNS.defaults['server']), 0)
resolv = ['# a comment',
'domain example.org',
'nameserver 127.0.0.1',
]
DNS.ParseResolvConfFromIterable(resolv)
self.assertEqual(len(DNS.defaults['server']), 1)
self.assertEqual(DNS.defaults['server'][0], '127.0.0.1')
self.assertEqual(DNS.defaults['domain'], 'example.org')
def testDnsRequestA(self):
# try with asking for strings, and asking for bytes
dnsobj = DNS.DnsRequest('example.org')
a_response = dnsobj.qry(qtype='A', resulttype='text')
self.assertTrue(a_response.answers)
# is the result vaguely ipv4 like?
self.assertEqual(a_response.answers[0]['data'].count('.'), 3)
self.assertEqual(a_response.answers[0]['data'],'93.184.216.119')
# Default result type for .qry object is an ipaddress object
ad_response = dnsobj.qry(qtype='A')
self.assertTrue(ad_response.answers)
self.assertEqual(ad_response.answers[0]['data'],ipaddress.IPv4Address('93.184.216.119'))
ab_response = dnsobj.qry(qtype='A', resulttype='binary')
self.assertTrue(ab_response.answers)
# is the result ipv4 binary like?
self.assertEqual(len(ab_response.answers[0]['data']), 4)
for b in ab_response.answers[0]['data']:
assertIsByte(b)
self.assertEqual(ab_response.answers[0]['data'],b']\xb8\xd8w')
ai_response = dnsobj.qry(qtype='A', resulttype='integer')
self.assertTrue(ai_response.answers)
self.assertEqual(ai_response.answers[0]['data'],1572395127)
def testDnsRequestAAAA(self):
import ipaddress
dnsobj = DNS.DnsRequest('example.org')
aaaa_response = dnsobj.qry(qtype='AAAA', resulttype='text')
self.assertTrue(aaaa_response.answers)
# does the result look like an ipv6 address?
self.assertTrue(':' in aaaa_response.answers[0]['data'])
self.assertEqual(aaaa_response.answers[0]['data'],'2606:2800:220:6d:26bf:1447:1097:aa7')
# default is returning ipaddress object
aaaad_response = dnsobj.qry(qtype='AAAA')
self.assertTrue(aaaad_response.answers)
self.assertEqual(aaaad_response.answers[0]['data'],ipaddress.IPv6Address('2606:2800:220:6d:26bf:1447:1097:aa7'))
aaaab_response = dnsobj.qry(qtype='AAAA', resulttype='binary')
self.assertTrue(aaaab_response.answers)
# is it ipv6 looking?
self.assertEqual(len(aaaab_response.answers[0]['data']) , 16)
for b in aaaab_response.answers[0]['data']:
assertIsByte(b)
self.assertEqual(aaaab_response.answers[0]['data'],b'&\x06(\x00\x02 \x00m&\xbf\x14G\x10\x97\n\xa7')
# IPv6 decimal
aaaai_response = dnsobj.qry(qtype='AAAA', resulttype='integer')
self.assertTrue(aaaai_response.answers)
self.assertEqual(aaaai_response.answers[0]['data'], 50542628918019815862290244053507705511)
def testDnsRequestEmptyMX(self):
dnsobj = DNS.DnsRequest('example.org')
mx_empty_response = dnsobj.qry(qtype='MX')
self.assertFalse(mx_empty_response.answers)
def testDnsRequestMX(self):
dnsobj = DNS.DnsRequest('ietf.org')
mx_response = dnsobj.qry(qtype='MX')
self.assertTrue(mx_response.answers[0])
# is hard coding a remote address a good idea?
# I think it's unavoidable. - sk
self.assertEqual(mx_response.answers[0]['data'], (0, 'mail.ietf.org'))
m = DNS.mxlookup('ietf.org')
self.assertEqual(mx_response.answers[0]['data'], m[0])
def testDnsRequestSrv(self):
dnsobj = DNS.Request(qtype='srv')
respdef = dnsobj.qry('_ldap._tcp.openldap.org')
self.assertTrue(respdef.answers)
data = respdef.answers[0]['data']
self.assertEqual(len(data), 4)
self.assertEqual(data[2], 389)
self.assertTrue('openldap.org' in data[3])
def testDkimRequest(self):
q = '20120113._domainkey.google.com'
dnsobj = DNS.Request(q, qtype='txt')
resp = dnsobj.qry()
self.assertTrue(resp.answers)
# should the result be bytes or a string? (Bytes, we finally settled on bytes)
data = resp.answers[0]['data']
self.assertFalse(isinstance(data[0], str))
self.assertTrue(data[0].startswith(b'k=rsa'))
def testDNSRequestTXT(self):
dnsobj = DNS.DnsRequest('fail.kitterman.org')
respdef = dnsobj.qry(qtype='TXT')
self.assertTrue(respdef.answers)
data = respdef.answers[0]['data']
self.assertEqual(data, [b'v=spf1 -all'])
resptext = dnsobj.qry(qtype='TXT', resulttype='text')
self.assertTrue(resptext.answers)
data = resptext.answers[0]['data']
self.assertEqual(data, ['v=spf1 -all'])
respbin = dnsobj.qry(qtype='TXT', resulttype='binary')
self.assertTrue(respbin.answers)
data = respbin.answers[0]['data']
self.assertEqual(data, [b'\x0bv=spf1 -all'])
def testIDN(self):
"""Can we lookup an internationalized domain name?"""
dnsobj = DNS.DnsRequest('xn--bb-eka.at')
unidnsobj = DNS.DnsRequest('öbb.at')
a_resp = dnsobj.qry(qtype='A', resulttype='text')
ua_resp = unidnsobj.qry(qtype='A', resulttype='text')
self.assertTrue(a_resp.answers)
self.assertTrue(ua_resp.answers)
self.assertEqual(ua_resp.answers[0]['data'],
a_resp.answers[0]['data'])
def testNS(self):
"""Lookup NS record from SOA"""
dnsob = DNS.DnsRequest('kitterman.com')
resp = dnsob.qry(qtype='SOA')
self.assertTrue(resp.answers)
primary = resp.answers[0]['data'][0]
self.assertEqual(primary, 'ns1.pairnic.com')
resp = dnsob.qry(qtype='NS',server=primary,aa=1)
nslist = [x['data'].lower() for x in resp.answers]
nslist.sort()
self.assertEqual(nslist, ['ns1.pairnic.com', 'ns2.pairnic.com'])
# Test defaults with legacy DNS.req
def testDnsRequestAD(self):
# try with asking for strings, and asking for bytes
dnsob = DNS.DnsRequest('example.org')
ad_response = dnsob.req(qtype='A')
self.assertTrue(ad_response.answers)
# is the result vaguely ipv4 like?
self.assertEqual(ad_response.answers[0]['data'].count('.'), 3)
self.assertEqual(ad_response.answers[0]['data'],'93.184.216.119')
def testDnsRequestAAAAD(self):
dnsob = DNS.DnsRequest('example.org')
# default is returning binary instead of text
aaaad_response = dnsob.req(qtype='AAAA')
self.assertTrue(aaaad_response.answers)
# does the result look like a binary ipv6 address?
self.assertEqual(len(aaaad_response.answers[0]['data']) , 16)
for b in aaaad_response.answers[0]['data']:
assertIsByte(b)
self.assertEqual(aaaad_response.answers[0]['data'],b'&\x06(\x00\x02 \x00m&\xbf\x14G\x10\x97\n\xa7')
def testDnsRequestEmptyMXD(self):
dnsob = DNS.DnsRequest('example.org')
mx_empty_response = dnsob.req(qtype='MX')
self.assertFalse(mx_empty_response.answers)
def testDnsRequestMXD(self):
dnsob = DNS.DnsRequest('ietf.org')
mx_response = dnsob.req(qtype='MX')
self.assertTrue(mx_response.answers[0])
# is hard coding a remote address a good idea?
# I think it's unavoidable. - sk
self.assertEqual(mx_response.answers[0]['data'], (0, 'mail.ietf.org'))
m = DNS.mxlookup('ietf.org')
self.assertEqual(mx_response.answers[0]['data'], m[0])
def testDnsRequestSrvD(self):
dnsob = DNS.Request(qtype='srv')
respdef = dnsob.req('_ldap._tcp.openldap.org')
self.assertTrue(respdef.answers)
data = respdef.answers[0]['data']
self.assertEqual(len(data), 4)
self.assertEqual(data[2], 389)
self.assertTrue('openldap.org' in data[3])
def testDkimRequestD(self):
q = '20120113._domainkey.google.com'
dnsob = DNS.Request(q, qtype='txt')
resp = dnsob.req()
self.assertTrue(resp.answers)
# should the result be bytes or a string? (Bytes, we finally settled on bytes)
data = resp.answers[0]['data']
self.assertFalse(isinstance(data[0], str))
self.assertTrue(data[0].startswith(b'k=rsa'))
def testDNSRequestTXTD(self):
dnsob = DNS.DnsRequest('fail.kitterman.org')
respdef = dnsob.req(qtype='TXT')
self.assertTrue(respdef.answers)
data = respdef.answers[0]['data']
self.assertEqual(data, [b'v=spf1 -all'])
def testIDND(self):
"""Can we lookup an internationalized domain name?"""
dnsob = DNS.DnsRequest('xn--bb-eka.at')
unidnsob = DNS.DnsRequest('öbb.at')
a_resp = dnsob.req(qtype='A', resulttype='text')
ua_resp = unidnsob.req(qtype='A', resulttype='text')
self.assertTrue(a_resp.answers)
self.assertTrue(ua_resp.answers)
self.assertEqual(ua_resp.answers[0]['data'],
a_resp.answers[0]['data'])
def testNSD(self):
"""Lookup NS record from SOA"""
dnsob = DNS.DnsRequest('kitterman.com')
resp = dnsob.req(qtype='SOA')
self.assertTrue(resp.answers)
primary = resp.answers[0]['data'][0]
self.assertEqual(primary, 'ns1.pairnic.com')
resp = dnsob.req(qtype='NS',server=primary,aa=1)
nslist = [x['data'].lower() for x in resp.answers]
nslist.sort()
self.assertEqual(nslist, ['ns1.pairnic.com', 'ns2.pairnic.com'])
def test_suite():
from unittest import TestLoader
return TestLoader().loadTestsFromName(__name__)
if __name__ == "__main__":
unittest.main()
|
