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# Copyright (C) 2003-2007, 2009-2011 Nominum, Inc.
#
# Permission to use, copy, modify, and distribute this software and its
# documentation for any purpose with or without fee is hereby granted,
# provided that the above copyright notice and this permission notice
# appear in all copies.
#
# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
import io
import filecmp
import os
import unittest
import dns.exception
import dns.rdata
import dns.rdataclass
import dns.rdatatype
import dns.rrset
import dns.zone
example_text = """$TTL 3600
$ORIGIN example.
@ soa foo bar 1 2 3 4 5
@ ns ns1
@ ns ns2
ns1 a 10.0.0.1
ns2 a 10.0.0.2
$TTL 300
$ORIGIN foo.example.
bar mx 0 blaz
"""
example_text_output = """@ 3600 IN SOA foo bar 1 2 3 4 5
@ 3600 IN NS ns1
@ 3600 IN NS ns2
bar.foo 300 IN MX 0 blaz.foo
ns1 3600 IN A 10.0.0.1
ns2 3600 IN A 10.0.0.2
"""
something_quite_similar = """@ 3600 IN SOA foo bar 1 2 3 4 5
@ 3600 IN NS ns1
@ 3600 IN NS ns2
bar.foo 300 IN MX 0 blaz.foo
ns1 3600 IN A 10.0.0.1
ns2 3600 IN A 10.0.0.3
"""
something_different = """@ 3600 IN SOA fooa bar 1 2 3 4 5
@ 3600 IN NS ns11
@ 3600 IN NS ns21
bar.fooa 300 IN MX 0 blaz.fooa
ns11 3600 IN A 10.0.0.11
ns21 3600 IN A 10.0.0.21
"""
ttl_example_text = """$TTL 1h
$ORIGIN example.
@ soa foo bar 1 2 3 4 5
@ ns ns1
@ ns ns2
ns1 1d1s a 10.0.0.1
ns2 1w1D1h1m1S a 10.0.0.2
"""
no_soa_text = """$TTL 1h
$ORIGIN example.
@ ns ns1
@ ns ns2
ns1 1d1s a 10.0.0.1
ns2 1w1D1h1m1S a 10.0.0.2
"""
no_ns_text = """$TTL 1h
$ORIGIN example.
@ soa foo bar 1 2 3 4 5
"""
include_text = """$INCLUDE "example"
"""
bad_directive_text = """$FOO bar
$ORIGIN example.
@ soa foo bar 1 2 3 4 5
@ ns ns1
@ ns ns2
ns1 1d1s a 10.0.0.1
ns2 1w1D1h1m1S a 10.0.0.2
"""
_keep_output = False
class ZoneTestCase(unittest.TestCase):
def testFromFile1(self):
z = dns.zone.from_file('example', 'example')
ok = False
try:
z.to_file('example1.out', nl='\x0a')
ok = filecmp.cmp('example1.out', 'example1.good')
finally:
if not _keep_output:
os.unlink('example1.out')
self.assertTrue(ok)
def testFromFile2(self):
z = dns.zone.from_file('example', 'example', relativize=False)
ok = False
try:
z.to_file('example2.out', relativize=False, nl='\x0a')
ok = filecmp.cmp('example2.out', 'example2.good')
finally:
if not _keep_output:
os.unlink('example2.out')
self.assertTrue(ok)
def testFromText(self):
z = dns.zone.from_text(example_text, 'example.', relativize=True)
f = io.StringIO()
names = sorted(z.nodes.keys())
for n in names:
print(z[n].to_text(n), file=f)
self.assertTrue(f.getvalue() == example_text_output)
def testTorture1(self):
#
# Read a zone containing all our supported RR types, and
# for each RR in the zone, convert the rdata into wire format
# and then back out, and see if we get equal rdatas.
#
f = io.BytesIO()
o = dns.name.from_text('example.')
z = dns.zone.from_file('example', o)
for (name, node) in z.items():
for rds in node:
for rd in rds:
f.seek(0)
f.truncate()
rd.to_wire(f, origin=o)
wire = f.getvalue()
rd2 = dns.rdata.from_wire(rds.rdclass, rds.rdtype,
wire, 0, len(wire),
origin = o)
self.assertTrue(rd == rd2)
def testEqual(self):
z1 = dns.zone.from_text(example_text, 'example.', relativize=True)
z2 = dns.zone.from_text(example_text_output, 'example.',
relativize=True)
self.assertTrue(z1 == z2)
def testNotEqual1(self):
z1 = dns.zone.from_text(example_text, 'example.', relativize=True)
z2 = dns.zone.from_text(something_quite_similar, 'example.',
relativize=True)
self.assertTrue(z1 != z2)
def testNotEqual2(self):
z1 = dns.zone.from_text(example_text, 'example.', relativize=True)
z2 = dns.zone.from_text(something_different, 'example.',
relativize=True)
self.assertTrue(z1 != z2)
def testNotEqual3(self):
z1 = dns.zone.from_text(example_text, 'example.', relativize=True)
z2 = dns.zone.from_text(something_different, 'example2.',
relativize=True)
self.assertTrue(z1 != z2)
def testFindRdataset1(self):
z = dns.zone.from_text(example_text, 'example.', relativize=True)
rds = z.find_rdataset('@', 'soa')
exrds = dns.rdataset.from_text('IN', 'SOA', 300, 'foo bar 1 2 3 4 5')
self.assertTrue(rds == exrds)
def testFindRdataset2(self):
def bad():
z = dns.zone.from_text(example_text, 'example.', relativize=True)
rds = z.find_rdataset('@', 'loc')
self.assertRaises(KeyError, bad)
def testFindRRset1(self):
z = dns.zone.from_text(example_text, 'example.', relativize=True)
rrs = z.find_rrset('@', 'soa')
exrrs = dns.rrset.from_text('@', 300, 'IN', 'SOA', 'foo bar 1 2 3 4 5')
self.assertTrue(rrs == exrrs)
def testFindRRset2(self):
def bad():
z = dns.zone.from_text(example_text, 'example.', relativize=True)
rrs = z.find_rrset('@', 'loc')
self.assertRaises(KeyError, bad)
def testGetRdataset1(self):
z = dns.zone.from_text(example_text, 'example.', relativize=True)
rds = z.get_rdataset('@', 'soa')
exrds = dns.rdataset.from_text('IN', 'SOA', 300, 'foo bar 1 2 3 4 5')
self.assertTrue(rds == exrds)
def testGetRdataset2(self):
z = dns.zone.from_text(example_text, 'example.', relativize=True)
rds = z.get_rdataset('@', 'loc')
self.assertTrue(rds == None)
def testGetRRset1(self):
z = dns.zone.from_text(example_text, 'example.', relativize=True)
rrs = z.get_rrset('@', 'soa')
exrrs = dns.rrset.from_text('@', 300, 'IN', 'SOA', 'foo bar 1 2 3 4 5')
self.assertTrue(rrs == exrrs)
def testGetRRset2(self):
z = dns.zone.from_text(example_text, 'example.', relativize=True)
rrs = z.get_rrset('@', 'loc')
self.assertTrue(rrs == None)
def testReplaceRdataset1(self):
z = dns.zone.from_text(example_text, 'example.', relativize=True)
rdataset = dns.rdataset.from_text('in', 'ns', 300, 'ns3', 'ns4')
z.replace_rdataset('@', rdataset)
rds = z.get_rdataset('@', 'ns')
self.assertTrue(rds is rdataset)
def testReplaceRdataset2(self):
z = dns.zone.from_text(example_text, 'example.', relativize=True)
rdataset = dns.rdataset.from_text('in', 'txt', 300, '"foo"')
z.replace_rdataset('@', rdataset)
rds = z.get_rdataset('@', 'txt')
self.assertTrue(rds is rdataset)
def testDeleteRdataset1(self):
z = dns.zone.from_text(example_text, 'example.', relativize=True)
z.delete_rdataset('@', 'ns')
rds = z.get_rdataset('@', 'ns')
self.assertTrue(rds is None)
def testDeleteRdataset2(self):
z = dns.zone.from_text(example_text, 'example.', relativize=True)
z.delete_rdataset('ns1', 'a')
node = z.get_node('ns1')
self.assertTrue(node is None)
def testNodeFindRdataset1(self):
z = dns.zone.from_text(example_text, 'example.', relativize=True)
node = z['@']
rds = node.find_rdataset(dns.rdataclass.IN, dns.rdatatype.SOA)
exrds = dns.rdataset.from_text('IN', 'SOA', 300, 'foo bar 1 2 3 4 5')
self.assertTrue(rds == exrds)
def testNodeFindRdataset2(self):
def bad():
z = dns.zone.from_text(example_text, 'example.', relativize=True)
node = z['@']
rds = node.find_rdataset(dns.rdataclass.IN, dns.rdatatype.LOC)
self.assertRaises(KeyError, bad)
def testNodeGetRdataset1(self):
z = dns.zone.from_text(example_text, 'example.', relativize=True)
node = z['@']
rds = node.get_rdataset(dns.rdataclass.IN, dns.rdatatype.SOA)
exrds = dns.rdataset.from_text('IN', 'SOA', 300, 'foo bar 1 2 3 4 5')
self.assertTrue(rds == exrds)
def testNodeGetRdataset2(self):
z = dns.zone.from_text(example_text, 'example.', relativize=True)
node = z['@']
rds = node.get_rdataset(dns.rdataclass.IN, dns.rdatatype.LOC)
self.assertTrue(rds == None)
def testNodeDeleteRdataset1(self):
z = dns.zone.from_text(example_text, 'example.', relativize=True)
node = z['@']
rds = node.delete_rdataset(dns.rdataclass.IN, dns.rdatatype.SOA)
rds = node.get_rdataset(dns.rdataclass.IN, dns.rdatatype.SOA)
self.assertTrue(rds == None)
def testNodeDeleteRdataset2(self):
z = dns.zone.from_text(example_text, 'example.', relativize=True)
node = z['@']
rds = node.delete_rdataset(dns.rdataclass.IN, dns.rdatatype.LOC)
rds = node.get_rdataset(dns.rdataclass.IN, dns.rdatatype.LOC)
self.assertTrue(rds == None)
def testIterateRdatasets(self):
z = dns.zone.from_text(example_text, 'example.', relativize=True)
ns = sorted([n for n, r in z.iterate_rdatasets('A')])
self.assertTrue(ns == [dns.name.from_text('ns1', None),
dns.name.from_text('ns2', None)])
def testIterateAllRdatasets(self):
z = dns.zone.from_text(example_text, 'example.', relativize=True)
ns = sorted([n for n, r in z.iterate_rdatasets()])
self.assertTrue(ns == [dns.name.from_text('@', None),
dns.name.from_text('@', None),
dns.name.from_text('bar.foo', None),
dns.name.from_text('ns1', None),
dns.name.from_text('ns2', None)])
def testIterateRdatas(self):
z = dns.zone.from_text(example_text, 'example.', relativize=True)
l = sorted(z.iterate_rdatas('A'))
exl = [(dns.name.from_text('ns1', None),
3600,
dns.rdata.from_text(dns.rdataclass.IN, dns.rdatatype.A,
'10.0.0.1')),
(dns.name.from_text('ns2', None),
3600,
dns.rdata.from_text(dns.rdataclass.IN, dns.rdatatype.A,
'10.0.0.2'))]
self.assertTrue(l == exl)
def testIterateAllRdatas(self):
z = dns.zone.from_text(example_text, 'example.', relativize=True)
l = sorted(z.iterate_rdatas())
exl = [(dns.name.from_text('@', None),
3600,
dns.rdata.from_text(dns.rdataclass.IN, dns.rdatatype.NS,
'ns1')),
(dns.name.from_text('@', None),
3600,
dns.rdata.from_text(dns.rdataclass.IN, dns.rdatatype.NS,
'ns2')),
(dns.name.from_text('@', None),
3600,
dns.rdata.from_text(dns.rdataclass.IN, dns.rdatatype.SOA,
'foo bar 1 2 3 4 5')),
(dns.name.from_text('bar.foo', None),
300,
dns.rdata.from_text(dns.rdataclass.IN, dns.rdatatype.MX,
'0 blaz.foo')),
(dns.name.from_text('ns1', None),
3600,
dns.rdata.from_text(dns.rdataclass.IN, dns.rdatatype.A,
'10.0.0.1')),
(dns.name.from_text('ns2', None),
3600,
dns.rdata.from_text(dns.rdataclass.IN, dns.rdatatype.A,
'10.0.0.2'))]
self.assertTrue(l == exl)
def testTTLs(self):
z = dns.zone.from_text(ttl_example_text, 'example.', relativize=True)
n = z['@']
rds = n.get_rdataset(dns.rdataclass.IN, dns.rdatatype.SOA)
self.assertTrue(rds.ttl == 3600)
n = z['ns1']
rds = n.get_rdataset(dns.rdataclass.IN, dns.rdatatype.A)
self.assertTrue(rds.ttl == 86401)
n = z['ns2']
rds = n.get_rdataset(dns.rdataclass.IN, dns.rdatatype.A)
self.assertTrue(rds.ttl == 694861)
def testNoSOA(self):
def bad():
z = dns.zone.from_text(no_soa_text, 'example.',
relativize=True)
self.assertRaises(dns.zone.NoSOA, bad)
def testNoNS(self):
def bad():
z = dns.zone.from_text(no_ns_text, 'example.',
relativize=True)
self.assertRaises(dns.zone.NoNS, bad)
def testInclude(self):
z1 = dns.zone.from_text(include_text, 'example.', relativize=True,
allow_include=True)
z2 = dns.zone.from_file('example', 'example.', relativize=True)
self.assertTrue(z1 == z2)
def testBadDirective(self):
def bad():
z = dns.zone.from_text(bad_directive_text, 'example.',
relativize=True)
self.assertRaises(dns.exception.SyntaxError, bad)
if __name__ == '__main__':
unittest.main()
|
