Add Google Generative AI reauth flow (#118096)

* Add reauth flow

* address comments

homeassistant/components/google_generative_ai_conversation/__init__.py

@@ -2,12 +2,11 @@
 
 from __future__ import annotations
 
-from asyncio import timeout
 from functools import partial
 import mimetypes
 from pathlib import Path
 
-from google.api_core.exceptions import ClientError
+from google.api_core.exceptions import ClientError, DeadlineExceeded, GoogleAPICallError
 import google.generativeai as genai
 import google.generativeai.types as genai_types
 import voluptuous as vol
@@ -20,11 +19,16 @@
     ServiceResponse,
     SupportsResponse,
 )
-from homeassistant.exceptions import ConfigEntryNotReady, HomeAssistantError
+from homeassistant.exceptions import (
+    ConfigEntryAuthFailed,
+    ConfigEntryError,
+    ConfigEntryNotReady,
+    HomeAssistantError,
+)
 from homeassistant.helpers import config_validation as cv
 from homeassistant.helpers.typing import ConfigType
 
-from .const import CONF_PROMPT, DOMAIN, LOGGER
+from .const import CONF_CHAT_MODEL, CONF_PROMPT, DOMAIN, RECOMMENDED_CHAT_MODEL
 
 SERVICE_GENERATE_CONTENT = "generate_content"
 CONF_IMAGE_FILENAME = "image_filename"
@@ -101,13 +105,19 @@ async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     genai.configure(api_key=entry.data[CONF_API_KEY])
 
     try:
-        async with timeout(5.0):
-            next(await hass.async_add_executor_job(partial(genai.list_models)), None)
-    except (ClientError, TimeoutError) as err:
+        await hass.async_add_executor_job(
+            partial(
+                genai.get_model,
+                entry.options.get(CONF_CHAT_MODEL, RECOMMENDED_CHAT_MODEL),
+                request_options={"timeout": 5.0},
+            )
+        )
+    except (GoogleAPICallError, ValueError) as err:
         if isinstance(err, ClientError) and err.reason == "API_KEY_INVALID":
-            LOGGER.error("Invalid API key: %s", err)
-            return False
-        raise ConfigEntryNotReady(err) from err
+            raise ConfigEntryAuthFailed(err) from err
+        if isinstance(err, DeadlineExceeded):
+            raise ConfigEntryNotReady(err) from err
+        raise ConfigEntryError(err) from err
 
     await hass.config_entries.async_forward_entry_setups(entry, PLATFORMS)
 

homeassistant/components/google_generative_ai_conversation/config_flow.py

@@ -2,12 +2,13 @@
 
 from __future__ import annotations
 
+from collections.abc import Mapping
 from functools import partial
 import logging
 from types import MappingProxyType
 from typing import Any
 
-from google.api_core.exceptions import ClientError
+from google.api_core.exceptions import ClientError, GoogleAPICallError
 import google.generativeai as genai
 import voluptuous as vol
 
@@ -17,7 +18,7 @@
     ConfigFlowResult,
     OptionsFlow,
 )
-from homeassistant.const import CONF_API_KEY, CONF_LLM_HASS_API
+from homeassistant.const import CONF_API_KEY, CONF_LLM_HASS_API, CONF_NAME
 from homeassistant.core import HomeAssistant
 from homeassistant.helpers import llm
 from homeassistant.helpers.selector import (
@@ -54,7 +55,7 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-STEP_USER_DATA_SCHEMA = vol.Schema(
+STEP_API_DATA_SCHEMA = vol.Schema(
     {
         vol.Required(CONF_API_KEY): str,
     }
@@ -73,44 +74,86 @@ async def validate_input(hass: HomeAssistant, data: dict[str, Any]) -> None:
     Data has the keys from STEP_USER_DATA_SCHEMA with values provided by the user.
     """
     genai.configure(api_key=data[CONF_API_KEY])
-    await hass.async_add_executor_job(partial(genai.list_models))
+
+    def get_first_model():
+        return next(genai.list_models(request_options={"timeout": 5.0}), None)
+
+    await hass.async_add_executor_job(partial(get_first_model))
 
 
 class GoogleGenerativeAIConfigFlow(ConfigFlow, domain=DOMAIN):
     """Handle a config flow for Google Generative AI Conversation."""
 
     VERSION = 1
 
-    async def async_step_user(
+    def __init__(self) -> None:
+        """Initialize a new GoogleGenerativeAIConfigFlow."""
+        self.reauth_entry: ConfigEntry | None = None
+
+    async def async_step_api(
         self, user_input: dict[str, Any] | None = None
     ) -> ConfigFlowResult:
         """Handle the initial step."""
-        if user_input is None:
-            return self.async_show_form(
-                step_id="user", data_schema=STEP_USER_DATA_SCHEMA
-            )
-
-        errors = {}
-
-        try:
-            await validate_input(self.hass, user_input)
-        except ClientError as err:
-            if err.reason == "API_KEY_INVALID":
-                errors["base"] = "invalid_auth"
+        errors: dict[str, str] = {}
+        if user_input is not None:
+            try:
+                await validate_input(self.hass, user_input)
+            except GoogleAPICallError as err:
+                if isinstance(err, ClientError) and err.reason == "API_KEY_INVALID":
+                    errors["base"] = "invalid_auth"
+                else:
+                    errors["base"] = "cannot_connect"
+            except Exception:
+                _LOGGER.exception("Unexpected exception")
+                errors["base"] = "unknown"
             else:
-                errors["base"] = "cannot_connect"
-        except Exception:
-            _LOGGER.exception("Unexpected exception")
-            errors["base"] = "unknown"
-        else:
-            return self.async_create_entry(
-                title="Google Generative AI",
-                data=user_input,
-                options=RECOMMENDED_OPTIONS,
-            )
+                if self.reauth_entry:
+                    return self.async_update_reload_and_abort(
+                        self.reauth_entry,
+                        data=user_input,
+                    )
+                return self.async_create_entry(
+                    title="Google Generative AI",
+                    data=user_input,
+                    options=RECOMMENDED_OPTIONS,
+                )
+        return self.async_show_form(
+            step_id="api",
+            data_schema=STEP_API_DATA_SCHEMA,
+            description_placeholders={
+                "api_key_url": "https://aistudio.google.com/app/apikey"
+            },
+            errors=errors,
+        )
+
+    async def async_step_user(
+        self, user_input: dict[str, Any] | None = None
+    ) -> ConfigFlowResult:
+        """Handle the initial step."""
+        return await self.async_step_api()
 
+    async def async_step_reauth(
+        self, entry_data: Mapping[str, Any]
+    ) -> ConfigFlowResult:
+        """Handle configuration by re-auth."""
+        self.reauth_entry = self.hass.config_entries.async_get_entry(
+            self.context["entry_id"]
+        )
+        return await self.async_step_reauth_confirm()
+
+    async def async_step_reauth_confirm(
+        self, user_input: dict[str, Any] | None = None
+    ) -> ConfigFlowResult:
+        """Dialog that informs the user that reauth is required."""
+        if user_input is not None:
+            return await self.async_step_api()
+        assert self.reauth_entry
         return self.async_show_form(
-            step_id="user", data_schema=STEP_USER_DATA_SCHEMA, errors=errors
+            step_id="reauth_confirm",
+            description_placeholders={
+                CONF_NAME: self.reauth_entry.title,
+                CONF_API_KEY: self.reauth_entry.data.get(CONF_API_KEY, ""),
+            },
         )
 
     @staticmethod

homeassistant/components/google_generative_ai_conversation/strings.json

@@ -1,17 +1,24 @@
 {
   "config": {
     "step": {
-      "user": {
+      "api": {
         "data": {
-          "api_key": "[%key:common::config_flow::data::api_key%]",
-          "llm_hass_api": "[%key:common::config_flow::data::llm_hass_api%]"
-        }
+          "api_key": "[%key:common::config_flow::data::api_key%]"
+        },
+        "description": "Get your API key from [here]({api_key_url})."
+      },
+      "reauth_confirm": {
+        "title": "[%key:common::config_flow::title::reauth%]",
+        "description": "Your current API key: {api_key} is no longer valid. Please enter a new valid API key."
       }
     },
     "error": {
       "cannot_connect": "[%key:common::config_flow::error::cannot_connect%]",
       "invalid_auth": "[%key:common::config_flow::error::invalid_auth%]",
       "unknown": "[%key:common::config_flow::error::unknown%]"
+    },
+    "abort": {
+      "reauth_successful": "[%key:common::config_flow::abort::reauth_successful%]"
     }
   },
   "options": {

tests/components/google_generative_ai_conversation/conftest.py

@@ -17,8 +17,7 @@
 def mock_genai():
     """Mock the genai call in async_setup_entry."""
     with patch(
-        "homeassistant.components.google_generative_ai_conversation.genai.list_models",
-        return_value=iter([]),
+        "homeassistant.components.google_generative_ai_conversation.genai.get_model"
     ):
         yield
 

tests/components/google_generative_ai_conversation/test_config_flow.py

@@ -2,7 +2,7 @@
 
 from unittest.mock import Mock, patch
 
-from google.api_core.exceptions import ClientError
+from google.api_core.exceptions import ClientError, DeadlineExceeded
 from google.rpc.error_details_pb2 import ErrorInfo
 import pytest
 
@@ -69,7 +69,7 @@ async def test_form(hass: HomeAssistant) -> None:
         DOMAIN, context={"source": config_entries.SOURCE_USER}
     )
     assert result["type"] is FlowResultType.FORM
-    assert result["errors"] is None
+    assert not result["errors"]
 
     with (
         patch(
@@ -186,13 +186,16 @@ async def test_options_switching(
     ("side_effect", "error"),
     [
         (
-            ClientError(message="some error"),
+            ClientError("some error"),
+            "cannot_connect",
+        ),
+        (
+            DeadlineExceeded("deadline exceeded"),
             "cannot_connect",
         ),
         (
             ClientError(
-                message="invalid api key",
-                error_info=ErrorInfo(reason="API_KEY_INVALID"),
+                "invalid api key", error_info=ErrorInfo(reason="API_KEY_INVALID")
             ),
             "invalid_auth",
         ),
@@ -218,3 +221,51 @@ async def test_form_errors(hass: HomeAssistant, side_effect, error) -> None:
 
     assert result2["type"] is FlowResultType.FORM
     assert result2["errors"] == {"base": error}
+
+
+async def test_reauth_flow(hass: HomeAssistant) -> None:
+    """Test the reauth flow."""
+    hass.config.components.add("google_generative_ai_conversation")
+    mock_config_entry = MockConfigEntry(
+        domain=DOMAIN, state=config_entries.ConfigEntryState.LOADED, title="Gemini"
+    )
+    mock_config_entry.add_to_hass(hass)
+    mock_config_entry.async_start_reauth(hass)
+    await hass.async_block_till_done()
+
+    flows = hass.config_entries.flow.async_progress()
+    assert len(flows) == 1
+    result = flows[0]
+    assert result["step_id"] == "reauth_confirm"
+    assert result["context"]["source"] == "reauth"
+    assert result["context"]["title_placeholders"] == {"name": "Gemini"}
+
+    result = await hass.config_entries.flow.async_configure(result["flow_id"], {})
+    assert result["type"] is FlowResultType.FORM
+    assert result["step_id"] == "api"
+    assert "api_key" in result["data_schema"].schema
+    assert not result["errors"]
+
+    with (
+        patch(
+            "homeassistant.components.google_generative_ai_conversation.config_flow.genai.list_models",
+        ),
+        patch(
+            "homeassistant.components.google_generative_ai_conversation.async_setup_entry",
+            return_value=True,
+        ) as mock_setup_entry,
+        patch(
+            "homeassistant.components.google_generative_ai_conversation.async_unload_entry",
+            return_value=True,
+        ) as mock_unload_entry,
+    ):
+        result = await hass.config_entries.flow.async_configure(
+            result["flow_id"], {"api_key": "1234"}
+        )
+        await hass.async_block_till_done()
+
+    assert result["type"] is FlowResultType.ABORT
+    assert result["reason"] == "reauth_successful"
+    assert hass.config_entries.async_entries(DOMAIN)[0].data == {"api_key": "1234"}
+    assert len(mock_unload_entry.mock_calls) == 1
+    assert len(mock_setup_entry.mock_calls) == 1