Fix host resolution when local dns does not resolve mdns (#636)

aioesphomeapi/host_resolver.py

@@ -2,6 +2,7 @@ from __future__ import annotations
 
 import asyncio
 import contextlib
+import logging
 import socket
 from dataclasses import dataclass
 from ipaddress import IPv4Address, IPv6Address
@@ -12,8 +13,12 @@ from zeroconf.asyncio import AsyncServiceInfo, AsyncZeroconf
 
 from .core import APIConnectionError, ResolveAPIError
 
+_LOGGER = logging.getLogger(__name__)
+
 ZeroconfInstanceType = Union[Zeroconf, AsyncZeroconf, None]
 
+SERVICE_TYPE = "_esphomelib._tcp.local."
+
 
 @dataclass(frozen=True)
 class Sockaddr:
@@ -89,11 +94,11 @@ async def _async_resolve_host_zeroconf(
     timeout: float = 3.0,
     zeroconf_instance: ZeroconfInstanceType = None,
 ) -> list[AddrInfo]:
-    service_type = "_esphomelib._tcp.local."
-    service_name = f"{host}.{service_type}"
+    service_name = f"{host}.{SERVICE_TYPE}"
 
+    _LOGGER.debug("Resolving host %s via mDNS", service_name)
     info = await _async_zeroconf_get_service_info(
-        zeroconf_instance, service_type, service_name, timeout
+        zeroconf_instance, SERVICE_TYPE, service_name, timeout
     )
 
     if info is None:
@@ -197,8 +202,8 @@ async def async_resolve_host(
     addrs: list[AddrInfo] = []
 
     zc_error = None
-    if host.endswith(".local"):
-        name = host[: -len(".local")]
+    if "." not in host or host.endswith(".local"):
+        name = host.partition(".")[0]
         try:
             addrs.extend(
                 await _async_resolve_host_zeroconf(

aioesphomeapi/log_reader.py

@@ -7,6 +7,8 @@ import logging
 import sys
 from datetime import datetime
 
+from zeroconf.asyncio import AsyncZeroconf
+
 from .api_pb2 import SubscribeLogsResponse  # type: ignore
 from .client import APIClient
 from .log_runner import async_run
@@ -27,11 +29,14 @@ async def main(argv: list[str]) -> None:
         datefmt="%Y-%m-%d %H:%M:%S",
     )
 
+    aiozc = AsyncZeroconf()
+
     cli = APIClient(
         args.address,
         args.port,
         args.password or "",
         noise_psk=args.noise_psk,
+        zeroconf_instance=aiozc.zeroconf,
         keepalive=10,
     )
 
@@ -41,11 +46,12 @@ async def main(argv: list[str]) -> None:
         text = message.decode("utf8", "backslashreplace")
         print(f"[{time_.hour:02}:{time_.minute:02}:{time_.second:02}]{text}")
 
-    stop = await async_run(cli, on_log)
+    stop = await async_run(cli, on_log, aio_zeroconf_instance=aiozc)
     try:
         while True:
             await asyncio.sleep(60)
     finally:
+        await aiozc.async_close()
         await stop()
 
 

tests/test_log_runner.py

@@ -34,12 +34,15 @@ async def test_log_runner(event_loop: asyncio.AbstractEventLoop, conn: APIConnec
     class PatchableAPIClient(APIClient):
         pass
 
+    async_zeroconf = get_mock_async_zeroconf()
+
     cli = PatchableAPIClient(
         address=Estr("1.2.3.4"),
         port=6052,
         password=None,
         noise_psk=None,
         expected_name=Estr("fake"),
+        zeroconf_instance=async_zeroconf.zeroconf,
     )
     messages = []
 
@@ -60,8 +63,6 @@ async def test_log_runner(event_loop: asyncio.AbstractEventLoop, conn: APIConnec
         await original_subscribe_logs(*args, **kwargs)
         subscribed.set()
 
-    async_zeroconf = get_mock_async_zeroconf()
-
     with patch.object(event_loop, "sock_connect"), patch.object(
         loop, "create_connection", side_effect=_create_mock_transport_protocol
     ), patch.object(cli, "subscribe_logs", _wait_subscribe_cli):