Filter IPv6 addreses from enphase_envoy discovery (#68362)

homeassistant/components/enphase_envoy/config_flow.py

@@ -16,6 +16,7 @@ from homeassistant.core import HomeAssistant, callback
 from homeassistant.data_entry_flow import FlowResult
 from homeassistant.exceptions import HomeAssistantError
 from homeassistant.helpers.httpx_client import get_async_client
+from homeassistant.util.network import is_ipv4_address
 
 from .const import DOMAIN
 
@@ -86,6 +87,8 @@ class ConfigFlow(config_entries.ConfigFlow, domain=DOMAIN):
         self, discovery_info: zeroconf.ZeroconfServiceInfo
     ) -> FlowResult:
         """Handle a flow initialized by zeroconf discovery."""
+        if not is_ipv4_address(discovery_info.host):
+            return self.async_abort(reason="not_ipv4_address")
         serial = discovery_info.properties["serialnum"]
         await self.async_set_unique_id(serial)
         self.ip_address = discovery_info.host

homeassistant/components/enphase_envoy/translations/en.json

@@ -2,7 +2,8 @@
     "config": {
         "abort": {
             "already_configured": "Device is already configured",
-            "reauth_successful": "Re-authentication was successful"
+            "reauth_successful": "Re-authentication was successful",
+            "not_ipv4_address": "Only IPv4 addresess are supported"
         },
         "error": {
             "cannot_connect": "Failed to connect",

tests/components/enphase_envoy/test_config_flow.py

@@ -6,6 +6,7 @@ import httpx
 from homeassistant import config_entries
 from homeassistant.components import zeroconf
 from homeassistant.components.enphase_envoy.const import DOMAIN
+from homeassistant.const import CONF_HOST
 from homeassistant.core import HomeAssistant
 
 from tests.common import MockConfigEntry
@@ -312,8 +313,8 @@ async def test_zeroconf_serial_already_exists(hass: HomeAssistant) -> None:
         DOMAIN,
         context={"source": config_entries.SOURCE_ZEROCONF},
         data=zeroconf.ZeroconfServiceInfo(
-            host="1.1.1.1",
-            addresses=["1.1.1.1"],
+            host="4.4.4.4",
+            addresses=["4.4.4.4"],
             hostname="mock_hostname",
             name="mock_name",
             port=None,
@@ -324,6 +325,42 @@ async def test_zeroconf_serial_already_exists(hass: HomeAssistant) -> None:
 
     assert result["type"] == "abort"
     assert result["reason"] == "already_configured"
+    assert config_entry.data[CONF_HOST] == "4.4.4.4"
+
+
+async def test_zeroconf_serial_already_exists_ignores_ipv6(hass: HomeAssistant) -> None:
+    """Test serial number already exists from zeroconf but the discovery is ipv6."""
+
+    config_entry = MockConfigEntry(
+        domain=DOMAIN,
+        data={
+            "host": "1.1.1.1",
+            "name": "Envoy",
+            "username": "test-username",
+            "password": "test-password",
+        },
+        unique_id="1234",
+        title="Envoy",
+    )
+    config_entry.add_to_hass(hass)
+
+    result = await hass.config_entries.flow.async_init(
+        DOMAIN,
+        context={"source": config_entries.SOURCE_ZEROCONF},
+        data=zeroconf.ZeroconfServiceInfo(
+            host="fd00::b27c:63bb:cc85:4ea0",
+            addresses=["fd00::b27c:63bb:cc85:4ea0"],
+            hostname="mock_hostname",
+            name="mock_name",
+            port=None,
+            properties={"serialnum": "1234"},
+            type="mock_type",
+        ),
+    )
+
+    assert result["type"] == "abort"
+    assert result["reason"] == "not_ipv4_address"
+    assert config_entry.data[CONF_HOST] == "1.1.1.1"
 
 
 async def test_zeroconf_host_already_exists(hass: HomeAssistant) -> None: