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test_info.py
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test_info.py
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#!/usr/bin/env python
""" Unit tests for zeroconf._services.info. """
import asyncio
import logging
import os
import socket
import threading
import unittest
from ipaddress import ip_address
from threading import Event
from typing import Iterable, List, Optional
from unittest.mock import patch
import pytest
import zeroconf as r
from zeroconf import DNSAddress, const
from zeroconf._services.info import ServiceInfo
from zeroconf._utils.net import IPVersion
from zeroconf.asyncio import AsyncZeroconf
from .. import _inject_response, has_working_ipv6
log = logging.getLogger('zeroconf')
original_logging_level = logging.NOTSET
def setup_module():
global original_logging_level
original_logging_level = log.level
log.setLevel(logging.DEBUG)
def teardown_module():
if original_logging_level != logging.NOTSET:
log.setLevel(original_logging_level)
class TestServiceInfo(unittest.TestCase):
def test_get_name(self):
"""Verify the name accessor can strip the type."""
desc = {'path': '/~paulsm/'}
service_name = 'name._type._tcp.local.'
service_type = '_type._tcp.local.'
service_server = 'ash-1.local.'
service_address = socket.inet_aton("10.0.1.2")
info = ServiceInfo(
service_type, service_name, 22, 0, 0, desc, service_server, addresses=[service_address]
)
assert info.get_name() == "name"
def test_service_info_rejects_non_matching_updates(self):
"""Verify records with the wrong name are rejected."""
zc = r.Zeroconf(interfaces=['127.0.0.1'])
desc = {'path': '/~paulsm/'}
service_name = 'name._type._tcp.local.'
service_type = '_type._tcp.local.'
service_server = 'ash-1.local.'
service_address = socket.inet_aton("10.0.1.2")
ttl = 120
now = r.current_time_millis()
info = ServiceInfo(
service_type, service_name, 22, 0, 0, desc, service_server, addresses=[service_address]
)
# Verify backwards compatiblity with calling with None
info.update_record(zc, now, None)
# Matching updates
info.update_record(
zc,
now,
r.DNSText(
service_name,
const._TYPE_TXT,
const._CLASS_IN | const._CLASS_UNIQUE,
ttl,
b'\x04ff=0\x04ci=2\x04sf=0\x0bsh=6fLM5A==',
),
)
assert info.properties[b"ci"] == b"2"
info.update_record(
zc,
now,
r.DNSService(
service_name,
const._TYPE_SRV,
const._CLASS_IN | const._CLASS_UNIQUE,
ttl,
0,
0,
80,
'ASH-2.local.',
),
)
assert info.server_key == 'ash-2.local.'
assert info.server == 'ASH-2.local.'
new_address = socket.inet_aton("10.0.1.3")
info.update_record(
zc,
now,
r.DNSAddress(
'ASH-2.local.',
const._TYPE_A,
const._CLASS_IN | const._CLASS_UNIQUE,
ttl,
new_address,
),
)
assert new_address in info.addresses
# Non-matching updates
info.update_record(
zc,
now,
r.DNSText(
"incorrect.name.",
const._TYPE_TXT,
const._CLASS_IN | const._CLASS_UNIQUE,
ttl,
b'\x04ff=0\x04ci=3\x04sf=0\x0bsh=6fLM5A==',
),
)
assert info.properties[b"ci"] == b"2"
info.update_record(
zc,
now,
r.DNSService(
"incorrect.name.",
const._TYPE_SRV,
const._CLASS_IN | const._CLASS_UNIQUE,
ttl,
0,
0,
80,
'ASH-2.local.',
),
)
assert info.server_key == 'ash-2.local.'
assert info.server == 'ASH-2.local.'
new_address = socket.inet_aton("10.0.1.4")
info.update_record(
zc,
now,
r.DNSAddress(
"incorrect.name.",
const._TYPE_A,
const._CLASS_IN | const._CLASS_UNIQUE,
ttl,
new_address,
),
)
assert new_address not in info.addresses
zc.close()
def test_service_info_rejects_expired_records(self):
"""Verify records that are expired are rejected."""
zc = r.Zeroconf(interfaces=['127.0.0.1'])
desc = {'path': '/~paulsm/'}
service_name = 'name._type._tcp.local.'
service_type = '_type._tcp.local.'
service_server = 'ash-1.local.'
service_address = socket.inet_aton("10.0.1.2")
ttl = 120
now = r.current_time_millis()
info = ServiceInfo(
service_type, service_name, 22, 0, 0, desc, service_server, addresses=[service_address]
)
# Matching updates
info.update_record(
zc,
now,
r.DNSText(
service_name,
const._TYPE_TXT,
const._CLASS_IN | const._CLASS_UNIQUE,
ttl,
b'\x04ff=0\x04ci=2\x04sf=0\x0bsh=6fLM5A==',
),
)
assert info.properties[b"ci"] == b"2"
# Expired record
expired_record = r.DNSText(
service_name,
const._TYPE_TXT,
const._CLASS_IN | const._CLASS_UNIQUE,
ttl,
b'\x04ff=0\x04ci=3\x04sf=0\x0bsh=6fLM5A==',
)
expired_record.set_created_ttl(1000, 1)
info.update_record(zc, now, expired_record)
assert info.properties[b"ci"] == b"2"
zc.close()
@unittest.skipIf(not has_working_ipv6(), 'Requires IPv6')
@unittest.skipIf(os.environ.get('SKIP_IPV6'), 'IPv6 tests disabled')
def test_get_info_partial(self):
zc = r.Zeroconf(interfaces=['127.0.0.1'])
service_name = 'name._type._tcp.local.'
service_type = '_type._tcp.local.'
service_server = 'ash-1.local.'
service_text = b'path=/~matt1/'
service_address = '10.0.1.2'
service_address_v6_ll = 'fe80::52e:c2f2:bc5f:e9c6'
service_scope_id = 12
service_info = None
send_event = Event()
service_info_event = Event()
last_sent = None # type: Optional[r.DNSOutgoing]
def send(out, addr=const._MDNS_ADDR, port=const._MDNS_PORT, v6_flow_scope=()):
"""Sends an outgoing packet."""
nonlocal last_sent
last_sent = out
send_event.set()
# patch the zeroconf send
with patch.object(zc, "async_send", send):
def mock_incoming_msg(records: Iterable[r.DNSRecord]) -> r.DNSIncoming:
generated = r.DNSOutgoing(const._FLAGS_QR_RESPONSE)
for record in records:
generated.add_answer_at_time(record, 0)
return r.DNSIncoming(generated.packets()[0])
def get_service_info_helper(zc, type, name):
nonlocal service_info
service_info = zc.get_service_info(type, name)
service_info_event.set()
try:
ttl = 120
helper_thread = threading.Thread(
target=get_service_info_helper, args=(zc, service_type, service_name)
)
helper_thread.start()
wait_time = 1
# Expext query for SRV, TXT, A, AAAA
send_event.wait(wait_time)
assert last_sent is not None
assert len(last_sent.questions) == 4
assert r.DNSQuestion(service_name, const._TYPE_SRV, const._CLASS_IN) in last_sent.questions
assert r.DNSQuestion(service_name, const._TYPE_TXT, const._CLASS_IN) in last_sent.questions
assert r.DNSQuestion(service_name, const._TYPE_A, const._CLASS_IN) in last_sent.questions
assert r.DNSQuestion(service_name, const._TYPE_AAAA, const._CLASS_IN) in last_sent.questions
assert service_info is None
# Expext query for SRV, A, AAAA
last_sent = None
send_event.clear()
_inject_response(
zc,
mock_incoming_msg(
[
r.DNSText(
service_name,
const._TYPE_TXT,
const._CLASS_IN | const._CLASS_UNIQUE,
ttl,
service_text,
)
]
),
)
send_event.wait(wait_time)
assert last_sent is not None
assert len(last_sent.questions) == 3 # type: ignore[unreachable]
assert r.DNSQuestion(service_name, const._TYPE_SRV, const._CLASS_IN) in last_sent.questions
assert r.DNSQuestion(service_name, const._TYPE_A, const._CLASS_IN) in last_sent.questions
assert r.DNSQuestion(service_name, const._TYPE_AAAA, const._CLASS_IN) in last_sent.questions
assert service_info is None
# Expext query for A, AAAA
last_sent = None
send_event.clear()
_inject_response(
zc,
mock_incoming_msg(
[
r.DNSService(
service_name,
const._TYPE_SRV,
const._CLASS_IN | const._CLASS_UNIQUE,
ttl,
0,
0,
80,
service_server,
)
]
),
)
send_event.wait(wait_time)
assert last_sent is not None
assert len(last_sent.questions) == 2
assert r.DNSQuestion(service_server, const._TYPE_A, const._CLASS_IN) in last_sent.questions
assert r.DNSQuestion(service_server, const._TYPE_AAAA, const._CLASS_IN) in last_sent.questions
last_sent = None
assert service_info is None
# Expext no further queries
last_sent = None
send_event.clear()
_inject_response(
zc,
mock_incoming_msg(
[
r.DNSAddress(
service_server,
const._TYPE_A,
const._CLASS_IN | const._CLASS_UNIQUE,
ttl,
socket.inet_pton(socket.AF_INET, service_address),
),
r.DNSAddress(
service_server,
const._TYPE_AAAA,
const._CLASS_IN | const._CLASS_UNIQUE,
ttl,
socket.inet_pton(socket.AF_INET6, service_address_v6_ll),
scope_id=service_scope_id,
),
]
),
)
send_event.wait(wait_time)
assert last_sent is None
assert service_info is not None
finally:
helper_thread.join()
zc.remove_all_service_listeners()
zc.close()
def test_get_info_single(self):
zc = r.Zeroconf(interfaces=['127.0.0.1'])
service_name = 'name._type._tcp.local.'
service_type = '_type._tcp.local.'
service_server = 'ash-1.local.'
service_text = b'path=/~matt1/'
service_address = '10.0.1.2'
service_info = None
send_event = Event()
service_info_event = Event()
last_sent = None # type: Optional[r.DNSOutgoing]
def send(out, addr=const._MDNS_ADDR, port=const._MDNS_PORT, v6_flow_scope=()):
"""Sends an outgoing packet."""
nonlocal last_sent
last_sent = out
send_event.set()
# patch the zeroconf send
with patch.object(zc, "async_send", send):
def mock_incoming_msg(records: Iterable[r.DNSRecord]) -> r.DNSIncoming:
generated = r.DNSOutgoing(const._FLAGS_QR_RESPONSE)
for record in records:
generated.add_answer_at_time(record, 0)
return r.DNSIncoming(generated.packets()[0])
def get_service_info_helper(zc, type, name):
nonlocal service_info
service_info = zc.get_service_info(type, name)
service_info_event.set()
try:
ttl = 120
helper_thread = threading.Thread(
target=get_service_info_helper, args=(zc, service_type, service_name)
)
helper_thread.start()
wait_time = 1
# Expext query for SRV, TXT, A, AAAA
send_event.wait(wait_time)
assert last_sent is not None
assert len(last_sent.questions) == 4
assert r.DNSQuestion(service_name, const._TYPE_SRV, const._CLASS_IN) in last_sent.questions
assert r.DNSQuestion(service_name, const._TYPE_TXT, const._CLASS_IN) in last_sent.questions
assert r.DNSQuestion(service_name, const._TYPE_A, const._CLASS_IN) in last_sent.questions
assert r.DNSQuestion(service_name, const._TYPE_AAAA, const._CLASS_IN) in last_sent.questions
assert service_info is None
# Expext no further queries
last_sent = None
send_event.clear()
_inject_response(
zc,
mock_incoming_msg(
[
r.DNSText(
service_name,
const._TYPE_TXT,
const._CLASS_IN | const._CLASS_UNIQUE,
ttl,
service_text,
),
r.DNSService(
service_name,
const._TYPE_SRV,
const._CLASS_IN | const._CLASS_UNIQUE,
ttl,
0,
0,
80,
service_server,
),
r.DNSAddress(
service_server,
const._TYPE_A,
const._CLASS_IN | const._CLASS_UNIQUE,
ttl,
socket.inet_pton(socket.AF_INET, service_address),
),
]
),
)
send_event.wait(wait_time)
assert last_sent is None
assert service_info is not None
finally:
helper_thread.join()
zc.remove_all_service_listeners()
zc.close()
def test_service_info_duplicate_properties_txt_records(self):
"""Verify the first property is always used when there are duplicates in a txt record."""
zc = r.Zeroconf(interfaces=['127.0.0.1'])
desc = {'path': '/~paulsm/'}
service_name = 'name._type._tcp.local.'
service_type = '_type._tcp.local.'
service_server = 'ash-1.local.'
service_address = socket.inet_aton("10.0.1.2")
ttl = 120
now = r.current_time_millis()
info = ServiceInfo(
service_type, service_name, 22, 0, 0, desc, service_server, addresses=[service_address]
)
info.async_update_records(
zc,
now,
[
r.RecordUpdate(
r.DNSText(
service_name,
const._TYPE_TXT,
const._CLASS_IN | const._CLASS_UNIQUE,
ttl,
b'\x04ff=0\x04ci=2\x04sf=0\x0bsh=6fLM5A==\x04dd=0\x04jl=2\x04qq=0\x0brr=6fLM5A==\x04ci=3',
),
None,
)
],
)
assert info.properties[b"dd"] == b"0"
assert info.properties[b"jl"] == b"2"
assert info.properties[b"ci"] == b"2"
zc.close()
def test_multiple_addresses():
type_ = "_http._tcp.local."
registration_name = "xxxyyy.%s" % type_
desc = {'path': '/~paulsm/'}
address_parsed = "10.0.1.2"
address = socket.inet_aton(address_parsed)
# New kwarg way
info = ServiceInfo(type_, registration_name, 80, 0, 0, desc, "ash-2.local.", addresses=[address, address])
assert info.addresses == [address, address]
assert info.parsed_addresses() == [address_parsed, address_parsed]
assert info.parsed_scoped_addresses() == [address_parsed, address_parsed]
info = ServiceInfo(
type_,
registration_name,
80,
0,
0,
desc,
"ash-2.local.",
parsed_addresses=[address_parsed, address_parsed],
)
assert info.addresses == [address, address]
assert info.parsed_addresses() == [address_parsed, address_parsed]
assert info.parsed_scoped_addresses() == [address_parsed, address_parsed]
if has_working_ipv6() and not os.environ.get('SKIP_IPV6'):
address_v6_parsed = "2001:db8::1"
address_v6 = socket.inet_pton(socket.AF_INET6, address_v6_parsed)
address_v6_ll_parsed = "fe80::52e:c2f2:bc5f:e9c6"
address_v6_ll_scoped_parsed = "fe80::52e:c2f2:bc5f:e9c6%12"
address_v6_ll = socket.inet_pton(socket.AF_INET6, address_v6_ll_parsed)
interface_index = 12
infos = [
ServiceInfo(
type_,
registration_name,
80,
0,
0,
desc,
"ash-2.local.",
addresses=[address, address_v6, address_v6_ll],
interface_index=interface_index,
),
ServiceInfo(
type_,
registration_name,
80,
0,
0,
desc,
"ash-2.local.",
parsed_addresses=[address_parsed, address_v6_parsed, address_v6_ll_parsed],
interface_index=interface_index,
),
]
for info in infos:
assert info.addresses == [address]
assert info.addresses_by_version(r.IPVersion.All) == [address, address_v6, address_v6_ll]
assert info.ip_addresses_by_version(r.IPVersion.All) == [
ip_address(address),
ip_address(address_v6),
ip_address(address_v6_ll),
]
assert info.addresses_by_version(r.IPVersion.V4Only) == [address]
assert info.ip_addresses_by_version(r.IPVersion.V4Only) == [ip_address(address)]
assert info.addresses_by_version(r.IPVersion.V6Only) == [address_v6, address_v6_ll]
assert info.ip_addresses_by_version(r.IPVersion.V6Only) == [
ip_address(address_v6),
ip_address(address_v6_ll),
]
assert info.parsed_addresses() == [address_parsed, address_v6_parsed, address_v6_ll_parsed]
assert info.parsed_addresses(r.IPVersion.V4Only) == [address_parsed]
assert info.parsed_addresses(r.IPVersion.V6Only) == [address_v6_parsed, address_v6_ll_parsed]
assert info.parsed_scoped_addresses() == [
address_parsed,
address_v6_parsed,
address_v6_ll_scoped_parsed,
]
assert info.parsed_scoped_addresses(r.IPVersion.V4Only) == [address_parsed]
assert info.parsed_scoped_addresses(r.IPVersion.V6Only) == [
address_v6_parsed,
address_v6_ll_scoped_parsed,
]
# This test uses asyncio because it needs to access the cache directly
# which is not threadsafe
@pytest.mark.asyncio
async def test_multiple_a_addresses_newest_address_first():
"""Test that info.addresses returns the newest seen address first."""
type_ = "_http._tcp.local."
registration_name = "multiarec.%s" % type_
desc = {'path': '/~paulsm/'}
aiozc = AsyncZeroconf(interfaces=['127.0.0.1'])
cache = aiozc.zeroconf.cache
host = "multahost.local."
record1 = r.DNSAddress(host, const._TYPE_A, const._CLASS_IN, 1000, b'\x7f\x00\x00\x01')
record2 = r.DNSAddress(host, const._TYPE_A, const._CLASS_IN, 1000, b'\x7f\x00\x00\x02')
cache.async_add_records([record1, record2])
# New kwarg way
info = ServiceInfo(type_, registration_name, 80, 0, 0, desc, host)
info.load_from_cache(aiozc.zeroconf)
assert info.addresses == [b'\x7f\x00\x00\x02', b'\x7f\x00\x00\x01']
await aiozc.async_close()
@pytest.mark.asyncio
async def test_invalid_a_addresses(caplog):
type_ = "_http._tcp.local."
registration_name = "multiarec.%s" % type_
desc = {'path': '/~paulsm/'}
aiozc = AsyncZeroconf(interfaces=['127.0.0.1'])
cache = aiozc.zeroconf.cache
host = "multahost.local."
record1 = r.DNSAddress(host, const._TYPE_A, const._CLASS_IN, 1000, b'a')
record2 = r.DNSAddress(host, const._TYPE_A, const._CLASS_IN, 1000, b'b')
cache.async_add_records([record1, record2])
# New kwarg way
info = ServiceInfo(type_, registration_name, 80, 0, 0, desc, host)
info.load_from_cache(aiozc.zeroconf)
assert not info.addresses
assert "Encountered invalid address while processing record" in caplog.text
await aiozc.async_close()
@unittest.skipIf(not has_working_ipv6(), 'Requires IPv6')
@unittest.skipIf(os.environ.get('SKIP_IPV6'), 'IPv6 tests disabled')
def test_filter_address_by_type_from_service_info():
"""Verify dns_addresses can filter by ipversion."""
desc = {'path': '/~paulsm/'}
type_ = "_homeassistant._tcp.local."
name = "MyTestHome"
registration_name = f"{name}.{type_}"
ipv4 = socket.inet_aton("10.0.1.2")
ipv6 = socket.inet_pton(socket.AF_INET6, "2001:db8::1")
info = ServiceInfo(type_, registration_name, 80, 0, 0, desc, "ash-2.local.", addresses=[ipv4, ipv6])
def dns_addresses_to_addresses(dns_address: List[DNSAddress]) -> List[bytes]:
return [address.address for address in dns_address]
assert dns_addresses_to_addresses(info.dns_addresses()) == [ipv4, ipv6]
assert dns_addresses_to_addresses(info.dns_addresses(version=r.IPVersion.All)) == [ipv4, ipv6]
assert dns_addresses_to_addresses(info.dns_addresses(version=r.IPVersion.V4Only)) == [ipv4]
assert dns_addresses_to_addresses(info.dns_addresses(version=r.IPVersion.V6Only)) == [ipv6]
def test_changing_name_updates_serviceinfo_key():
"""Verify a name change will adjust the underlying key value."""
type_ = "_homeassistant._tcp.local."
name = "MyTestHome"
info_service = ServiceInfo(
type_,
f'{name}.{type_}',
80,
0,
0,
{'path': '/~paulsm/'},
"ash-2.local.",
addresses=[socket.inet_aton("10.0.1.2")],
)
assert info_service.key == "mytesthome._homeassistant._tcp.local."
info_service.name = "YourTestHome._homeassistant._tcp.local."
assert info_service.key == "yourtesthome._homeassistant._tcp.local."
def test_serviceinfo_address_updates():
"""Verify adding/removing/setting addresses on ServiceInfo."""
type_ = "_homeassistant._tcp.local."
name = "MyTestHome"
# Verify addresses and parsed_addresses are mutually exclusive
with pytest.raises(TypeError):
info_service = ServiceInfo(
type_,
f'{name}.{type_}',
80,
0,
0,
{'path': '/~paulsm/'},
"ash-2.local.",
addresses=[socket.inet_aton("10.0.1.2")],
parsed_addresses=["10.0.1.2"],
)
info_service = ServiceInfo(
type_,
f'{name}.{type_}',
80,
0,
0,
{'path': '/~paulsm/'},
"ash-2.local.",
addresses=[socket.inet_aton("10.0.1.2")],
)
info_service.addresses = [socket.inet_aton("10.0.1.3")]
assert info_service.addresses == [socket.inet_aton("10.0.1.3")]
def test_serviceinfo_accepts_bytes_or_string_dict():
"""Verify a bytes or string dict can be passed to ServiceInfo."""
type_ = "_homeassistant._tcp.local."
name = "MyTestHome"
addresses = [socket.inet_aton("10.0.1.2")]
server_name = "ash-2.local."
info_service = ServiceInfo(
type_, f'{name}.{type_}', 80, 0, 0, {b'path': b'/~paulsm/'}, server_name, addresses=addresses
)
assert info_service.dns_text().text == b'\x0epath=/~paulsm/'
info_service = ServiceInfo(
type_,
f'{name}.{type_}',
80,
0,
0,
{'path': '/~paulsm/'},
server_name,
addresses=addresses,
)
assert info_service.dns_text().text == b'\x0epath=/~paulsm/'
info_service = ServiceInfo(
type_,
f'{name}.{type_}',
80,
0,
0,
{b'path': '/~paulsm/'},
server_name,
addresses=addresses,
)
assert info_service.dns_text().text == b'\x0epath=/~paulsm/'
info_service = ServiceInfo(
type_,
f'{name}.{type_}',
80,
0,
0,
{'path': b'/~paulsm/'},
server_name,
addresses=addresses,
)
assert info_service.dns_text().text == b'\x0epath=/~paulsm/'
def test_asking_qu_questions():
"""Verify explictly asking QU questions."""
type_ = "_quservice._tcp.local."
zeroconf = r.Zeroconf(interfaces=['127.0.0.1'])
# we are going to patch the zeroconf send to check query transmission
old_send = zeroconf.async_send
first_outgoing = None
def send(out, addr=const._MDNS_ADDR, port=const._MDNS_PORT):
"""Sends an outgoing packet."""
nonlocal first_outgoing
if first_outgoing is None:
first_outgoing = out
old_send(out, addr=addr, port=port)
# patch the zeroconf send
with patch.object(zeroconf, "async_send", send):
zeroconf.get_service_info(f"name.{type_}", type_, 500, question_type=r.DNSQuestionType.QU)
assert first_outgoing.questions[0].unicast is True # type: ignore[union-attr]
zeroconf.close()
def test_asking_qm_questions():
"""Verify explictly asking QM questions."""
type_ = "_quservice._tcp.local."
zeroconf = r.Zeroconf(interfaces=['127.0.0.1'])
# we are going to patch the zeroconf send to check query transmission
old_send = zeroconf.async_send
first_outgoing = None
def send(out, addr=const._MDNS_ADDR, port=const._MDNS_PORT):
"""Sends an outgoing packet."""
nonlocal first_outgoing
if first_outgoing is None:
first_outgoing = out
old_send(out, addr=addr, port=port)
# patch the zeroconf send
with patch.object(zeroconf, "async_send", send):
zeroconf.get_service_info(f"name.{type_}", type_, 500, question_type=r.DNSQuestionType.QM)
assert first_outgoing.questions[0].unicast is False # type: ignore[union-attr]
zeroconf.close()
def test_request_timeout():
"""Test that the timeout does not throw an exception and finishes close to the actual timeout."""
zeroconf = r.Zeroconf(interfaces=['127.0.0.1'])
start_time = r.current_time_millis()
assert zeroconf.get_service_info("_notfound.local.", "notthere._notfound.local.") is None
end_time = r.current_time_millis()
zeroconf.close()
# 3000ms for the default timeout
# 1000ms for loaded systems + schedule overhead
assert (end_time - start_time) < 3000 + 1000
@pytest.mark.asyncio
async def test_we_try_four_times_with_random_delay():
"""Verify we try four times even with the random delay."""
type_ = "_typethatisnothere._tcp.local."
aiozc = AsyncZeroconf(interfaces=['127.0.0.1'])
# we are going to patch the zeroconf send to check query transmission
request_count = 0
def async_send(out, addr=const._MDNS_ADDR, port=const._MDNS_PORT):
"""Sends an outgoing packet."""
nonlocal request_count
request_count += 1
# patch the zeroconf send
with patch.object(aiozc.zeroconf, "async_send", async_send):
await aiozc.async_get_service_info(f"willnotbefound.{type_}", type_)
await aiozc.async_close()
assert request_count == 4
@pytest.mark.asyncio
async def test_release_wait_when_new_recorded_added():
"""Test that async_request returns as soon as new matching records are added to the cache."""
type_ = "_http._tcp.local."
registration_name = "multiarec.%s" % type_
desc = {'path': '/~paulsm/'}
aiozc = AsyncZeroconf(interfaces=['127.0.0.1'])
host = "multahost.local."
# New kwarg way
info = ServiceInfo(type_, registration_name, 80, 0, 0, desc, host)
task = asyncio.create_task(info.async_request(aiozc.zeroconf, timeout=200))
generated = r.DNSOutgoing(const._FLAGS_QR_RESPONSE)
generated.add_answer_at_time(
r.DNSNsec(
registration_name,
const._TYPE_NSEC,
const._CLASS_IN | const._CLASS_UNIQUE,
const._DNS_OTHER_TTL,
registration_name,
[const._TYPE_AAAA],
),
0,
)
generated.add_answer_at_time(
r.DNSService(
registration_name,
const._TYPE_SRV,
const._CLASS_IN | const._CLASS_UNIQUE,
10000,
0,
0,
80,
host,
),
0,
)
generated.add_answer_at_time(
r.DNSAddress(
host,
const._TYPE_A,
const._CLASS_IN,
10000,
b'\x7f\x00\x00\x01',
),
0,
)
generated.add_answer_at_time(
r.DNSText(
registration_name,
const._TYPE_TXT,
const._CLASS_IN | const._CLASS_UNIQUE,
10000,
b'\x04ff=0\x04ci=2\x04sf=0\x0bsh=6fLM5A==',
),
0,
)
await aiozc.zeroconf.async_wait_for_start()
await asyncio.sleep(0)
aiozc.zeroconf.handle_response(r.DNSIncoming(generated.packets()[0]))
assert await asyncio.wait_for(task, timeout=2)
assert info.addresses == [b'\x7f\x00\x00\x01']
await aiozc.async_close()
@pytest.mark.asyncio
async def test_port_changes_are_seen():
"""Test that port changes are seen by async_request."""
type_ = "_http._tcp.local."
registration_name = "multiarec.%s" % type_
desc = {'path': '/~paulsm/'}
aiozc = AsyncZeroconf(interfaces=['127.0.0.1'])
host = "multahost.local."
# New kwarg way
generated = r.DNSOutgoing(const._FLAGS_QR_RESPONSE)
generated.add_answer_at_time(
r.DNSNsec(
registration_name,
const._TYPE_NSEC,
const._CLASS_IN | const._CLASS_UNIQUE,
const._DNS_OTHER_TTL,
registration_name,
[const._TYPE_AAAA],
),
0,
)
generated.add_answer_at_time(
r.DNSService(
registration_name,
const._TYPE_SRV,
const._CLASS_IN | const._CLASS_UNIQUE,
10000,
0,
0,
80,
host,
),
0,
)
generated.add_answer_at_time(
r.DNSAddress(
host,
const._TYPE_A,
const._CLASS_IN,
10000,
b'\x7f\x00\x00\x01',
),
0,
)
generated.add_answer_at_time(
r.DNSText(
registration_name,
const._TYPE_TXT,
const._CLASS_IN | const._CLASS_UNIQUE,
10000,
b'\x04ff=0\x04ci=2\x04sf=0\x0bsh=6fLM5A==',
),
0,
)
await aiozc.zeroconf.async_wait_for_start()
await asyncio.sleep(0)
aiozc.zeroconf.handle_response(r.DNSIncoming(generated.packets()[0]))
generated = r.DNSOutgoing(const._FLAGS_QR_RESPONSE)
generated.add_answer_at_time(
r.DNSService(
registration_name,
const._TYPE_SRV,
const._CLASS_IN | const._CLASS_UNIQUE,
10000,
90,
90,
81,
host,
),
0,
)
aiozc.zeroconf.handle_response(r.DNSIncoming(generated.packets()[0]))
info = ServiceInfo(type_, registration_name, 80, 10, 10, desc, host)
await info.async_request(aiozc.zeroconf, timeout=200)
assert info.port == 81
assert info.priority == 90
assert info.weight == 90
await aiozc.async_close()
@pytest.mark.asyncio
async def test_ip_changes_are_seen():
"""Test that ip changes are seen by async_request."""
type_ = "_http._tcp.local."
registration_name = "multiarec.%s" % type_
aiozc = AsyncZeroconf(interfaces=['127.0.0.1'])
host = "multahost.local."
# New kwarg way
generated = r.DNSOutgoing(const._FLAGS_QR_RESPONSE)
generated.add_answer_at_time(
r.DNSNsec(
registration_name,
const._TYPE_NSEC,
const._CLASS_IN | const._CLASS_UNIQUE,
const._DNS_OTHER_TTL,
registration_name,
[const._TYPE_AAAA],
),
0,
)
generated.add_answer_at_time(
r.DNSService(
registration_name,
const._TYPE_SRV,
const._CLASS_IN | const._CLASS_UNIQUE,
10000,
0,
0,
80,
host,
),
0,
)
generated.add_answer_at_time(
r.DNSAddress(
host,
const._TYPE_A,