Add DHCP discovery support to Nuki integration (#46032)

homeassistant/components/nuki/config_flow.py

@@ -7,6 +7,7 @@ from requests.exceptions import RequestException
 import voluptuous as vol
 
 from homeassistant import config_entries, exceptions
+from homeassistant.components.dhcp import HOSTNAME, IP_ADDRESS
 from homeassistant.const import CONF_HOST, CONF_PORT, CONF_TOKEN
 
 from .const import (  # pylint: disable=unused-import
@@ -54,6 +55,10 @@ async def validate_input(hass, data):
 class NukiConfigFlow(config_entries.ConfigFlow, domain=DOMAIN):
     """Nuki config flow."""
 
+    def __init__(self):
+        """Initialize the Nuki config flow."""
+        self.discovery_schema = {}
+
     async def async_step_import(self, user_input=None):
         """Handle a flow initiated by import."""
         return await self.async_step_validate(user_input)
@@ -62,7 +67,23 @@ class NukiConfigFlow(config_entries.ConfigFlow, domain=DOMAIN):
         """Handle a flow initiated by the user."""
         return await self.async_step_validate(user_input)
 
-    async def async_step_validate(self, user_input):
+    async def async_step_dhcp(self, discovery_info: dict):
+        """Prepare configuration for a DHCP discovered Nuki bridge."""
+        await self.async_set_unique_id(int(discovery_info.get(HOSTNAME)[12:], 16))
+
+        self._abort_if_unique_id_configured()
+
+        self.discovery_schema = vol.Schema(
+            {
+                vol.Required(CONF_HOST, default=discovery_info[IP_ADDRESS]): str,
+                vol.Required(CONF_PORT, default=DEFAULT_PORT): int,
+                vol.Required(CONF_TOKEN): str,
+            }
+        )
+
+        return await self.async_step_validate()
+
+    async def async_step_validate(self, user_input=None):
         """Handle init step of a flow."""
 
         errors = {}
@@ -84,8 +105,10 @@ class NukiConfigFlow(config_entries.ConfigFlow, domain=DOMAIN):
                     title=info["ids"]["hardwareId"], data=user_input
                 )
 
+        data_schema = self.discovery_schema or USER_SCHEMA
+
         return self.async_show_form(
-            step_id="user", data_schema=USER_SCHEMA, errors=errors
+            step_id="user", data_schema=data_schema, errors=errors
         )
 
 

homeassistant/components/nuki/manifest.json

@@ -4,5 +4,6 @@
     "documentation": "https://www.home-assistant.io/integrations/nuki",
     "requirements": ["pynuki==1.3.8"],
     "codeowners": ["@pschmitt", "@pvizeli", "@pree"],
-    "config_flow": true
+    "config_flow": true,
+    "dhcp": [{ "hostname": "nuki_bridge_*" }]
 }

homeassistant/generated/dhcp.py

@@ -70,6 +70,10 @@ DHCP = [
         "hostname": "nuheat",
         "macaddress": "002338*"
     },
+    {
+        "domain": "nuki",
+        "hostname": "nuki_bridge_*"
+    },
     {
         "domain": "powerwall",
         "hostname": "1118431-*",

tests/components/nuki/mock.py

@@ -0,0 +1,25 @@
+"""Mockup Nuki device."""
+from homeassistant import setup
+
+from tests.common import MockConfigEntry
+
+NAME = "Nuki_Bridge_75BCD15"
+HOST = "1.1.1.1"
+MAC = "01:23:45:67:89:ab"
+
+HW_ID = 123456789
+
+MOCK_INFO = {"ids": {"hardwareId": HW_ID}}
+
+
+async def setup_nuki_integration(hass):
+    """Create the Nuki device."""
+    await setup.async_setup_component(hass, "persistent_notification", {})
+    entry = MockConfigEntry(
+        domain="nuki",
+        unique_id=HW_ID,
+        data={"host": HOST, "port": 8080, "token": "test-token"},
+    )
+    entry.add_to_hass(hass)
+
+    return entry

tests/components/nuki/test_config_flow.py

@@ -5,9 +5,10 @@ from pynuki.bridge import InvalidCredentialsException
 from requests.exceptions import RequestException
 
 from homeassistant import config_entries, data_entry_flow, setup
+from homeassistant.components.dhcp import HOSTNAME, IP_ADDRESS, MAC_ADDRESS
 from homeassistant.components.nuki.const import DOMAIN
 
-from tests.common import MockConfigEntry
+from .mock import HOST, MAC, MOCK_INFO, NAME, setup_nuki_integration
 
 
 async def test_form(hass):
@@ -19,11 +20,9 @@ async def test_form(hass):
     assert result["type"] == data_entry_flow.RESULT_TYPE_FORM
     assert result["errors"] == {}
 
-    mock_info = {"ids": {"hardwareId": "0001"}}
-
     with patch(
         "homeassistant.components.nuki.config_flow.NukiBridge.info",
-        return_value=mock_info,
+        return_value=MOCK_INFO,
     ), patch(
         "homeassistant.components.nuki.async_setup", return_value=True
     ) as mock_setup, patch(
@@ -41,7 +40,7 @@ async def test_form(hass):
         await hass.async_block_till_done()
 
     assert result2["type"] == data_entry_flow.RESULT_TYPE_CREATE_ENTRY
-    assert result2["title"] == "0001"
+    assert result2["title"] == 123456789
     assert result2["data"] == {
         "host": "1.1.1.1",
         "port": 8080,
@@ -55,11 +54,9 @@ async def test_import(hass):
     """Test that the import works."""
     await setup.async_setup_component(hass, "persistent_notification", {})
 
-    mock_info = {"ids": {"hardwareId": "0001"}}
-
     with patch(
         "homeassistant.components.nuki.config_flow.NukiBridge.info",
-        return_value=mock_info,
+        return_value=MOCK_INFO,
     ), patch(
         "homeassistant.components.nuki.async_setup", return_value=True
     ) as mock_setup, patch(
@@ -72,7 +69,7 @@ async def test_import(hass):
             data={"host": "1.1.1.1", "port": 8080, "token": "test-token"},
         )
         assert result["type"] == data_entry_flow.RESULT_TYPE_CREATE_ENTRY
-        assert result["title"] == "0001"
+        assert result["title"] == 123456789
         assert result["data"] == {
             "host": "1.1.1.1",
             "port": 8080,
@@ -155,21 +152,14 @@ async def test_form_unknown_exception(hass):
 
 async def test_form_already_configured(hass):
     """Test we get the form."""
-    await setup.async_setup_component(hass, "persistent_notification", {})
-    entry = MockConfigEntry(
-        domain="nuki",
-        unique_id="0001",
-        data={"host": "1.1.1.1", "port": 8080, "token": "test-token"},
-    )
-    entry.add_to_hass(hass)
-
+    await setup_nuki_integration(hass)
     result = await hass.config_entries.flow.async_init(
         DOMAIN, context={"source": config_entries.SOURCE_USER}
     )
 
     with patch(
         "homeassistant.components.nuki.config_flow.NukiBridge.info",
-        return_value={"ids": {"hardwareId": "0001"}},
+        return_value=MOCK_INFO,
     ):
         result2 = await hass.config_entries.flow.async_configure(
             result["flow_id"],
@@ -182,3 +172,58 @@ async def test_form_already_configured(hass):
 
         assert result2["type"] == data_entry_flow.RESULT_TYPE_ABORT
         assert result2["reason"] == "already_configured"
+
+
+async def test_dhcp_flow(hass):
+    """Test that DHCP discovery for new bridge works."""
+    result = await hass.config_entries.flow.async_init(
+        DOMAIN,
+        data={HOSTNAME: NAME, IP_ADDRESS: HOST, MAC_ADDRESS: MAC},
+        context={"source": config_entries.SOURCE_DHCP},
+    )
+
+    assert result["type"] == data_entry_flow.RESULT_TYPE_FORM
+    assert result["step_id"] == config_entries.SOURCE_USER
+
+    with patch(
+        "homeassistant.components.nuki.config_flow.NukiBridge.info",
+        return_value=MOCK_INFO,
+    ), patch(
+        "homeassistant.components.nuki.async_setup", return_value=True
+    ) as mock_setup, patch(
+        "homeassistant.components.nuki.async_setup_entry",
+        return_value=True,
+    ) as mock_setup_entry:
+        result2 = await hass.config_entries.flow.async_configure(
+            result["flow_id"],
+            {
+                "host": "1.1.1.1",
+                "port": 8080,
+                "token": "test-token",
+            },
+        )
+
+        assert result2["type"] == data_entry_flow.RESULT_TYPE_CREATE_ENTRY
+        assert result2["title"] == 123456789
+        assert result2["data"] == {
+            "host": "1.1.1.1",
+            "port": 8080,
+            "token": "test-token",
+        }
+
+        await hass.async_block_till_done()
+        assert len(mock_setup.mock_calls) == 1
+        assert len(mock_setup_entry.mock_calls) == 1
+
+
+async def test_dhcp_flow_already_configured(hass):
+    """Test that DHCP doesn't setup already configured devices."""
+    await setup_nuki_integration(hass)
+    result = await hass.config_entries.flow.async_init(
+        DOMAIN,
+        data={HOSTNAME: NAME, IP_ADDRESS: HOST, MAC_ADDRESS: MAC},
+        context={"source": config_entries.SOURCE_DHCP},
+    )
+
+    assert result["type"] == data_entry_flow.RESULT_TYPE_ABORT
+    assert result["reason"] == "already_configured"