Fix nmap_tracker typing (#54858)

Co-authored-by: Martin Hjelmare <marhje52@gmail.com>
Co-authored-by: Franck Nijhof <git@frenck.dev>

homeassistant/components/nmap_tracker/__init__.py

@@ -7,6 +7,7 @@ from dataclasses import dataclass
 from datetime import datetime, timedelta
 from functools import partial
 import logging
+from typing import Final
 
 import aiohttp
 from getmac import get_mac_address
@@ -34,19 +35,17 @@ from .const import (
 )
 
 # Some version of nmap will fail with 'Assertion failed: htn.toclock_running == true (Target.cc: stopTimeOutClock: 503)\n'
-NMAP_TRANSIENT_FAILURE = "Assertion failed: htn.toclock_running == true"
-MAX_SCAN_ATTEMPTS = 16
-OFFLINE_SCANS_TO_MARK_UNAVAILABLE = 3
+NMAP_TRANSIENT_FAILURE: Final = "Assertion failed: htn.toclock_running == true"
+MAX_SCAN_ATTEMPTS: Final = 16
+OFFLINE_SCANS_TO_MARK_UNAVAILABLE: Final = 3
 
 
-def short_hostname(hostname):
+def short_hostname(hostname: str) -> str:
     """Return the first part of the hostname."""
-    if hostname is None:
-        return None
     return hostname.split(".")[0]
 
 
-def human_readable_name(hostname, vendor, mac_address):
+def human_readable_name(hostname: str, vendor: str, mac_address: str) -> str:
     """Generate a human readable name."""
     if hostname:
         return short_hostname(hostname)
@@ -65,7 +64,7 @@ class NmapDevice:
     ipv4: str
     manufacturer: str
     reason: str
-    last_update: datetime.datetime
+    last_update: datetime
     offline_scans: int
 
 
@@ -74,9 +73,9 @@ class NmapTrackedDevices:
 
     def __init__(self) -> None:
         """Initialize the data."""
-        self.tracked: dict = {}
-        self.ipv4_last_mac: dict = {}
-        self.config_entry_owner: dict = {}
+        self.tracked: dict[str, NmapDevice] = {}
+        self.ipv4_last_mac: dict[str, str] = {}
+        self.config_entry_owner: dict[str, str] = {}
 
 
 _LOGGER = logging.getLogger(__name__)
@@ -132,7 +131,9 @@ def signal_device_update(mac_address) -> str:
 class NmapDeviceScanner:
     """This class scans for devices using nmap."""
 
-    def __init__(self, hass, entry, devices):
+    def __init__(
+        self, hass: HomeAssistant, entry: ConfigEntry, devices: NmapTrackedDevices
+    ) -> None:
         """Initialize the scanner."""
         self.devices = devices
         self.home_interval = None
@@ -150,9 +151,9 @@ class NmapDeviceScanner:
         self._exclude = None
         self._scan_interval = None
 
-        self._known_mac_addresses = {}
+        self._known_mac_addresses: dict[str, str] = {}
         self._finished_first_scan = False
-        self._last_results = []
+        self._last_results: list[NmapDevice] = []
         self._mac_vendor_lookup = None
 
     async def async_setup(self):

homeassistant/components/nmap_tracker/config_flow.py

@@ -10,6 +10,7 @@ from homeassistant import config_entries
 from homeassistant.components import network
 from homeassistant.components.device_tracker.const import CONF_SCAN_INTERVAL
 from homeassistant.components.network.const import MDNS_TARGET_IP
+from homeassistant.config_entries import ConfigEntry, OptionsFlow
 from homeassistant.const import CONF_EXCLUDE, CONF_HOSTS
 from homeassistant.core import HomeAssistant, callback
 from homeassistant.data_entry_flow import FlowResult
@@ -40,7 +41,7 @@ async def async_get_network(hass: HomeAssistant) -> str:
     return str(ip_network(f"{local_ip}/{network_prefix}", False))
 
 
-def _normalize_ips_and_network(hosts_str):
+def _normalize_ips_and_network(hosts_str: str) -> list[str] | None:
     """Check if a list of hosts are all ips or ip networks."""
 
     normalized_hosts = []
@@ -74,7 +75,7 @@ def _normalize_ips_and_network(hosts_str):
     return normalized_hosts
 
 
-def normalize_input(user_input):
+def normalize_input(user_input: dict[str, Any]) -> dict[str, str]:
     """Validate hosts and exclude are valid."""
     errors = {}
     normalized_hosts = _normalize_ips_and_network(user_input[CONF_HOSTS])
@@ -92,7 +93,9 @@ def normalize_input(user_input):
     return errors
 
 
-async def _async_build_schema_with_user_input(hass, user_input, include_options):
+async def _async_build_schema_with_user_input(
+    hass: HomeAssistant, user_input: dict[str, Any], include_options: bool
+) -> vol.Schema:
     hosts = user_input.get(CONF_HOSTS, await async_get_network(hass))
     exclude = user_input.get(
         CONF_EXCLUDE, await network.async_get_source_ip(hass, MDNS_TARGET_IP)
@@ -126,7 +129,9 @@ class OptionsFlowHandler(config_entries.OptionsFlow):
         """Initialize options flow."""
         self.options = dict(config_entry.options)
 
-    async def async_step_init(self, user_input=None):
+    async def async_step_init(
+        self, user_input: dict[str, Any] | None = None
+    ) -> FlowResult:
         """Handle options flow."""
         errors = {}
         if user_input is not None:
@@ -152,9 +157,9 @@ class ConfigFlow(config_entries.ConfigFlow, domain=DOMAIN):
 
     VERSION = 1
 
-    def __init__(self):
+    def __init__(self) -> None:
         """Initialize config flow."""
-        self.options = {}
+        self.options: dict[str, Any] = {}
 
     async def async_step_user(
         self, user_input: dict[str, Any] | None = None
@@ -183,14 +188,14 @@ class ConfigFlow(config_entries.ConfigFlow, domain=DOMAIN):
             errors=errors,
         )
 
-    def _async_is_unique_host_list(self, user_input):
+    def _async_is_unique_host_list(self, user_input: dict[str, Any]) -> bool:
         hosts = _normalize_ips_and_network(user_input[CONF_HOSTS])
         for entry in self._async_current_entries():
             if _normalize_ips_and_network(entry.options[CONF_HOSTS]) == hosts:
                 return False
         return True
 
-    async def async_step_import(self, user_input=None):
+    async def async_step_import(self, user_input: dict[str, Any]) -> FlowResult:
         """Handle import from yaml."""
         if not self._async_is_unique_host_list(user_input):
             return self.async_abort(reason="already_configured")
@@ -203,6 +208,6 @@ class ConfigFlow(config_entries.ConfigFlow, domain=DOMAIN):
 
     @staticmethod
     @callback
-    def async_get_options_flow(config_entry):
+    def async_get_options_flow(config_entry: ConfigEntry) -> OptionsFlow:
         """Get the options flow for this handler."""
         return OptionsFlowHandler(config_entry)

homeassistant/components/nmap_tracker/const.py

@@ -1,14 +1,15 @@
 """The Nmap Tracker integration."""
+from typing import Final
 
-DOMAIN = "nmap_tracker"
+DOMAIN: Final = "nmap_tracker"
 
-PLATFORMS = ["device_tracker"]
+PLATFORMS: Final = ["device_tracker"]
 
-NMAP_TRACKED_DEVICES = "nmap_tracked_devices"
+NMAP_TRACKED_DEVICES: Final = "nmap_tracked_devices"
 
 # Interval in minutes to exclude devices from a scan while they are home
-CONF_HOME_INTERVAL = "home_interval"
-CONF_OPTIONS = "scan_options"
-DEFAULT_OPTIONS = "-F -T4 --min-rate 10 --host-timeout 5s"
+CONF_HOME_INTERVAL: Final = "home_interval"
+CONF_OPTIONS: Final = "scan_options"
+DEFAULT_OPTIONS: Final = "-F -T4 --min-rate 10 --host-timeout 5s"
 
-TRACKER_SCAN_INTERVAL = 120
+TRACKER_SCAN_INTERVAL: Final = 120

homeassistant/components/nmap_tracker/device_tracker.py

@@ -1,13 +1,14 @@
 """Support for scanning a network with nmap."""
+from __future__ import annotations
 
 import logging
-from typing import Callable
+from typing import Any, Callable
 
 import voluptuous as vol
 
 from homeassistant.components.device_tracker import (
     DOMAIN as DEVICE_TRACKER_DOMAIN,
-    PLATFORM_SCHEMA,
+    PLATFORM_SCHEMA as DEVICE_TRACKER_PLATFORM_SCHEMA,
     SOURCE_TYPE_ROUTER,
 )
 from homeassistant.components.device_tracker.config_entry import ScannerEntity
@@ -18,8 +19,10 @@ from homeassistant.core import HomeAssistant, callback
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.device_registry import CONNECTION_NETWORK_MAC
 from homeassistant.helpers.dispatcher import async_dispatcher_connect
+from homeassistant.helpers.entity import DeviceInfo
+from homeassistant.helpers.typing import ConfigType
 
-from . import NmapDeviceScanner, short_hostname, signal_device_update
+from . import NmapDevice, NmapDeviceScanner, short_hostname, signal_device_update
 from .const import (
     CONF_HOME_INTERVAL,
     CONF_OPTIONS,
@@ -30,7 +33,8 @@ from .const import (
 
 _LOGGER = logging.getLogger(__name__)
 
-PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend(
+
+PLATFORM_SCHEMA = DEVICE_TRACKER_PLATFORM_SCHEMA.extend(
     {
         vol.Required(CONF_HOSTS): cv.ensure_list,
         vol.Required(CONF_HOME_INTERVAL, default=0): cv.positive_int,
@@ -40,7 +44,7 @@ PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend(
 )
 
 
-async def async_get_scanner(hass, config):
+async def async_get_scanner(hass: HomeAssistant, config: ConfigType) -> None:
     """Validate the configuration and return a Nmap scanner."""
     validated_config = config[DEVICE_TRACKER_DOMAIN]
 
@@ -110,7 +114,7 @@ class NmapTrackerEntity(ScannerEntity):
         self._active = active
 
     @property
-    def _device(self) -> bool:
+    def _device(self) -> NmapDevice:
         """Get latest device state."""
         return self._tracked[self._mac_address]
 
@@ -140,8 +144,10 @@ class NmapTrackerEntity(ScannerEntity):
         return self._mac_address
 
     @property
-    def hostname(self) -> str:
+    def hostname(self) -> str | None:
         """Return hostname of the device."""
+        if not self._device.hostname:
+            return None
         return short_hostname(self._device.hostname)
 
     @property
@@ -150,7 +156,7 @@ class NmapTrackerEntity(ScannerEntity):
         return SOURCE_TYPE_ROUTER
 
     @property
-    def device_info(self):
+    def device_info(self) -> DeviceInfo:
         """Return the device information."""
         return {
             "connections": {(CONNECTION_NETWORK_MAC, self._mac_address)},
@@ -164,7 +170,7 @@ class NmapTrackerEntity(ScannerEntity):
         return False
 
     @property
-    def icon(self):
+    def icon(self) -> str:
         """Return device icon."""
         return "mdi:lan-connect" if self._active else "mdi:lan-disconnect"
 
@@ -174,7 +180,7 @@ class NmapTrackerEntity(ScannerEntity):
         self._active = online
 
     @property
-    def extra_state_attributes(self):
+    def extra_state_attributes(self) -> dict[str, Any]:
         """Return the attributes."""
         return {
             "last_time_reachable": self._device.last_update.isoformat(
@@ -184,12 +190,12 @@ class NmapTrackerEntity(ScannerEntity):
         }
 
     @callback
-    def async_on_demand_update(self, online: bool):
+    def async_on_demand_update(self, online: bool) -> None:
         """Update state."""
         self.async_process_update(online)
         self.async_write_ha_state()
 
-    async def async_added_to_hass(self):
+    async def async_added_to_hass(self) -> None:
         """Register state update callback."""
         self.async_on_remove(
             async_dispatcher_connect(

mypy.ini

@@ -1499,9 +1499,6 @@ ignore_errors = true
 [mypy-homeassistant.components.nilu.*]
 ignore_errors = true
 
-[mypy-homeassistant.components.nmap_tracker.*]
-ignore_errors = true
-
 [mypy-homeassistant.components.nsw_fuel_station.*]
 ignore_errors = true
 

script/hassfest/mypy_config.py

@@ -92,7 +92,6 @@ IGNORED_MODULES: Final[list[str]] = [
     "homeassistant.components.nest.legacy.*",
     "homeassistant.components.nightscout.*",
     "homeassistant.components.nilu.*",
-    "homeassistant.components.nmap_tracker.*",
     "homeassistant.components.nsw_fuel_station.*",
     "homeassistant.components.nuki.*",
     "homeassistant.components.nws.*",