def test_no_answer():
z = dns.zone.from_text(base, "example.", zone_factory=dns.versioned.Zone)
m = dns.message.from_text(no_answer,
origin=z.origin,
one_rr_per_rrset=True)
with dns.xfr.Inbound(z, dns.rdatatype.IXFR, serial=1) as xfr:
with pytest.raises(dns.exception.FormError):
xfr.process_message(m)
def test_axfr_answers_after_final_soa():
z = dns.versioned.Zone("example.")
m = dns.message.from_text(axfr_answers_after_final_soa,
origin=z.origin,
one_rr_per_rrset=True)
with dns.xfr.Inbound(z, dns.rdatatype.AXFR) as xfr:
with pytest.raises(dns.exception.FormError):
xfr.process_message(m)
def test_axfr_unexpected_origin():
z = dns.versioned.Zone('example.')
m = dns.message.from_text(axfr_unexpected_origin,
origin=z.origin,
one_rr_per_rrset=True)
with dns.xfr.Inbound(z, dns.rdatatype.AXFR) as xfr:
with pytest.raises(dns.exception.FormError):
xfr.process_message(m)
def test_udp_ixfr_unexpected_end_just_stops():
# This is where everything looks good, but the IXFR just stops
# in the middle.
z = dns.zone.from_text(base, "example.", zone_factory=dns.versioned.Zone)
m = dns.message.from_text(unexpected_end_ixfr_2,
origin=z.origin,
one_rr_per_rrset=True)
with dns.xfr.Inbound(z, dns.rdatatype.IXFR, serial=1, is_udp=True) as xfr:
with pytest.raises(dns.exception.FormError):
xfr.process_message(m)
def test_ixfr_unexpected_end_bad_diff_sequence():
# This is where we get the end serial, but haven't seen all of
# the expected diffs
z = dns.zone.from_text(base, "example.", zone_factory=dns.versioned.Zone)
m = dns.message.from_text(unexpected_end_ixfr,
origin=z.origin,
one_rr_per_rrset=True)
with dns.xfr.Inbound(z, dns.rdatatype.IXFR, serial=1) as xfr:
with pytest.raises(dns.exception.FormError):
xfr.process_message(m)
def test_serial_went_backwards_ixfr():
z = dns.zone.from_text(ixfr_expected,
"example.",
zone_factory=dns.versioned.Zone)
m = dns.message.from_text(bad_empty_ixfr,
origin=z.origin,
one_rr_per_rrset=True)
with dns.xfr.Inbound(z, dns.rdatatype.IXFR, serial=5) as xfr:
with pytest.raises(dns.xfr.SerialWentBackwards):
xfr.process_message(m)
def test_retry_tcp_ixfr():
z = dns.zone.from_text(ixfr_expected,
"example.",
zone_factory=dns.versioned.Zone)
m = dns.message.from_text(retry_tcp_ixfr,
origin=z.origin,
one_rr_per_rrset=True)
with dns.xfr.Inbound(z, dns.rdatatype.IXFR, serial=1, is_udp=True) as xfr:
with pytest.raises(dns.xfr.UseTCP):
xfr.process_message(m)
def test_bad_empty_ixfr():
z = dns.zone.from_text(ixfr_expected,
'example.',
zone_factory=dns.versioned.Zone)
m = dns.message.from_text(bad_empty_ixfr,
origin=z.origin,
one_rr_per_rrset=True)
with dns.xfr.Inbound(z, dns.rdatatype.IXFR, serial=3) as xfr:
with pytest.raises(dns.exception.FormError):
xfr.process_message(m)
def test_basic_axfr_two_parts():
z = dns.versioned.Zone("example.")
m1 = dns.message.from_text(axfr1, origin=z.origin, one_rr_per_rrset=True)
m2 = dns.message.from_text(axfr2, origin=z.origin, one_rr_per_rrset=True)
with dns.xfr.Inbound(z, dns.rdatatype.AXFR) as xfr:
done = xfr.process_message(m1)
assert not done
done = xfr.process_message(m2)
assert done
ez = dns.zone.from_text(base, "example.")
assert z == ez
def test_basic_ixfr_unversioned():
z = dns.zone.from_text(base, "example.")
m = dns.message.from_text(ixfr, origin=z.origin, one_rr_per_rrset=True)
with dns.xfr.Inbound(z, dns.rdatatype.IXFR, serial=1) as xfr:
done = xfr.process_message(m)
assert done
ez = dns.zone.from_text(ixfr_expected, "example.")
assert z == ez
def test_basic_axfr():
z = dns.versioned.Zone('example.')
m = dns.message.from_text(axfr, origin=z.origin, one_rr_per_rrset=True)
with dns.xfr.Inbound(z, dns.rdatatype.AXFR) as xfr:
done = xfr.process_message(m)
assert done
ez = dns.zone.from_text(base, 'example.')
assert z == ez
def test_ixfr_is_axfr():
z = dns.zone.from_text(base, "example.", zone_factory=dns.versioned.Zone)
m = dns.message.from_text(ixfr_axfr,
origin=z.origin,
one_rr_per_rrset=True)
with dns.xfr.Inbound(z, dns.rdatatype.IXFR, serial=0xFFFFFFFF) as xfr:
done = xfr.process_message(m)
assert done
ez = dns.zone.from_text(base, "example.")
assert z == ez
def test_compressed_ixfr():
z = dns.zone.from_text(base, 'example.', zone_factory=dns.versioned.Zone)
m = dns.message.from_text(compressed_ixfr,
origin=z.origin,
one_rr_per_rrset=True)
with dns.xfr.Inbound(z, dns.rdatatype.IXFR, serial=1) as xfr:
done = xfr.process_message(m)
assert done
ez = dns.zone.from_text(ixfr_expected, 'example.')
assert z == ez
def test_basic_ixfr_many_parts():
z = dns.zone.from_text(base, "example.", zone_factory=dns.versioned.Zone)
with dns.xfr.Inbound(z, dns.rdatatype.IXFR, serial=1) as xfr:
done = False
for text in ixfrs:
assert not done
m = dns.message.from_text(text,
origin=z.origin,
one_rr_per_rrset=True)
done = xfr.process_message(m)
assert done
ez = dns.zone.from_text(ixfr_expected, "example.")
assert z == ez
def test_refused():
z = dns.zone.from_text(base, "example.", zone_factory=dns.versioned.Zone)
m = dns.message.from_text(refused, origin=z.origin, one_rr_per_rrset=True)
with dns.xfr.Inbound(z, dns.rdatatype.IXFR, serial=1) as xfr:
with pytest.raises(dns.xfr.TransferError):
xfr.process_message(m)