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Return FlowResultType.ABORT when violating single_config_entry (#111637)

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* Return FlowResultType.ABORT when violating single_config_entry

* Fix translations

* Fix tests
This commit is contained in:
Erik Montnemery 2024-02-27 18:28:19 +01:00 • committed by GitHub
parent 4281f648d2
commit fc4b18b907
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GPG key ID: B5690EEEBB952194
4 changed files with 77 additions and 58 deletions
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6
homeassistant/components/homeassistant/strings.json
View file

@ -1,4 +1,10 @@
{
"config": {
"abort": {
"single_instance_allowed": "[%key:common::config_flow::abort::single_instance_allowed%]"
},
"step": {}
},
"issues": {
"country_not_configured": {
"title": "The country has not been configured",

40
homeassistant/config_entries.py
View file

@ -1008,6 +1008,8 @@ class ConfigEntriesFlowManager(data_entry_flow.FlowManager):
if not context or "source" not in context:
raise KeyError("Context not set or doesn't have a source set")
flow_id = uuid_util.random_uuid_hex()
# Avoid starting a config flow on an integration that only supports
# a single config entry, but which already has an entry
if (
@ -1015,13 +1017,14 @@ class ConfigEntriesFlowManager(data_entry_flow.FlowManager):
and await _support_single_config_entry_only(self.hass, handler)
and self.config_entries.async_entries(handler, include_ignore=False)
):
raise HomeAssistantError(
"Cannot start a config flow, the integration"
" supports only a single config entry"
" but already has one"
return FlowResult(
type=data_entry_flow.FlowResultType.ABORT,
flow_id=flow_id,
handler=handler,
reason="single_instance_allowed",
translation_domain=HA_DOMAIN,
)
flow_id = uuid_util.random_uuid_hex()
loop = self.hass.loop
if context["source"] == SOURCE_IMPORT:
@ -1111,6 +1114,21 @@ class ConfigEntriesFlowManager(data_entry_flow.FlowManager):
if result["type"] != data_entry_flow.FlowResultType.CREATE_ENTRY:
return result
# Avoid adding a config entry for a integration
# that only supports a single config entry, but already has an entry
if (
await _support_single_config_entry_only(self.hass, flow.handler)
and flow.context["source"] != SOURCE_IGNORE
and self.config_entries.async_entries(flow.handler, include_ignore=False)
):
return FlowResult(
type=data_entry_flow.FlowResultType.ABORT,
flow_id=flow.flow_id,
handler=flow.handler,
reason="single_instance_allowed",
translation_domain=HA_DOMAIN,
)
# Check if config entry exists with unique ID. Unload it.
existing_entry = None
@ -1398,18 +1416,6 @@ class ConfigEntries:
f"An entry with the id {entry.entry_id} already exists."
)
# Avoid adding a config entry for a integration
# that only supports a single config entry, but already has an entry
if (
await _support_single_config_entry_only(self.hass, entry.domain)
and entry.source != SOURCE_IGNORE
and self.async_entries(entry.domain, include_ignore=False)
):
raise HomeAssistantError(
f"An entry for {entry.domain} already exists,"
f" but integration supports only one config entry"
)
self._entries[entry.entry_id] = entry
self._async_dispatch(ConfigEntryChange.ADDED, entry)
await self.async_setup(entry.entry_id)

1
homeassistant/data_entry_flow.py
View file

@ -157,6 +157,7 @@ class FlowResult(TypedDict, total=False):
result: Any
step_id: str
title: str
translation_domain: str
type: FlowResultType
url: str
version: int

78
tests/test_config_entries.py
View file

@ -3,7 +3,6 @@ from __future__ import annotations
import asyncio
from collections.abc import Generator
from contextlib import AbstractContextManager, nullcontext as does_not_raise
from datetime import timedelta
import logging
from typing import Any
@ -4435,41 +4434,32 @@ async def test_hashable_non_string_unique_id(
assert entries.get_entry_by_domain_and_unique_id("test", unique_id) is None
RAISES_SINGLE_ENTRY_ERROR = pytest.raises(
HomeAssistantError,
match=(
r"Cannot start a config flow, "
r"the integration supports only a single config entry but already has one"
),
)
@pytest.mark.parametrize(
("source", "user_input", "expectation", "expected_result"),
("source", "user_input", "expected_result"),
[
(
config_entries.SOURCE_IGNORE,
{"unique_id": "blah", "title": "blah"},
does_not_raise(),
{"type": data_entry_flow.FlowResultType.CREATE_ENTRY},
),
(
config_entries.SOURCE_REAUTH,
None,
does_not_raise(),
{"type": data_entry_flow.FlowResultType.FORM, "step_id": "reauth_confirm"},
),
(
config_entries.SOURCE_UNIGNORE,
None,
does_not_raise(),
{"type": data_entry_flow.FlowResultType.ABORT, "reason": "not_implemented"},
),
(
config_entries.SOURCE_USER,
None,
RAISES_SINGLE_ENTRY_ERROR,
{},
{
"type": data_entry_flow.FlowResultType.ABORT,
"reason": "single_instance_allowed",
"translation_domain": HA_DOMAIN,
},
),
],
)
@ -4478,7 +4468,6 @@ async def test_starting_config_flow_on_single_config_entry(
manager: config_entries.ConfigEntries,
source: str,
user_input: dict,
expectation: AbstractContextManager,
expected_result: dict,
) -> None:
"""Test starting a config flow for a single config entry integration.
@ -4520,7 +4509,7 @@ async def test_starting_config_flow_on_single_config_entry(
with patch(
"homeassistant.loader.async_get_integration",
return_value=integration,
), expectation:
):
result = await hass.config_entries.flow.async_init(
"comp", context={"source": source}, data=user_input
)
@ -4530,30 +4519,26 @@ async def test_starting_config_flow_on_single_config_entry(
@pytest.mark.parametrize(
("source", "user_input", "expectation", "expected_result"),
("source", "user_input", "expected_result"),
[
(
config_entries.SOURCE_IGNORE,
{"unique_id": "blah", "title": "blah"},
does_not_raise(),
{"type": data_entry_flow.FlowResultType.CREATE_ENTRY},
),
(
config_entries.SOURCE_REAUTH,
None,
does_not_raise(),
{"type": data_entry_flow.FlowResultType.FORM, "step_id": "reauth_confirm"},
),
(
config_entries.SOURCE_UNIGNORE,
None,
does_not_raise(),
{"type": data_entry_flow.FlowResultType.ABORT, "reason": "not_implemented"},
),
(
config_entries.SOURCE_USER,
None,
does_not_raise(),
{"type": data_entry_flow.FlowResultType.ABORT, "reason": "not_implemented"},
),
],
@ -4563,7 +4548,6 @@ async def test_starting_config_flow_on_single_config_entry_2(
manager: config_entries.ConfigEntries,
source: str,
user_input: dict,
expectation: AbstractContextManager,
expected_result: dict,
) -> None:
"""Test starting a config flow for a single config entry integration.
@ -4597,7 +4581,7 @@ async def test_starting_config_flow_on_single_config_entry_2(
with patch(
"homeassistant.loader.async_get_integration",
return_value=integration,
), expectation:
):
result = await hass.config_entries.flow.async_init(
"comp", context={"source": source}, data=user_input
)
@ -4610,6 +4594,19 @@ async def test_avoid_adding_second_config_entry_on_single_config_entry(
hass: HomeAssistant, manager: config_entries.ConfigEntries
) -> None:
"""Test that we cannot add a second entry for a single config entry integration."""
class TestFlow(config_entries.ConfigFlow):
"""Test flow."""
VERSION = 1
async def async_step_user(self, user_input=None):
"""Test user step."""
if user_input is None:
return self.async_show_form(step_id="user")
return self.async_create_entry(title="yo", data={})
integration = loader.Integration(
hass,
"components.comp",
@ -4622,6 +4619,20 @@ async def test_avoid_adding_second_config_entry_on_single_config_entry(
"single_config_entry": True,
},
)
mock_integration(hass, MockModule("comp"))
mock_platform(hass, "comp.config_flow", None)
with patch(
"homeassistant.loader.async_get_integration",
return_value=integration,
), patch.dict(config_entries.HANDLERS, {"comp": TestFlow}):
# Start a flow
result = await manager.flow.async_init(
"comp", context={"source": config_entries.SOURCE_USER}
)
assert result["type"] == data_entry_flow.FlowResultType.FORM
# Add a config entry
entry = MockConfigEntry(
domain="comp",
unique_id="1234",
@ -4631,18 +4642,13 @@ async def test_avoid_adding_second_config_entry_on_single_config_entry(
)
entry.add_to_hass(hass)
with patch(
"homeassistant.loader.async_get_integration",
return_value=integration,
), pytest.raises(
HomeAssistantError,
match=r"An entry for comp already exists, but integration supports only one config entry",
):
await hass.config_entries.async_add(
MockConfigEntry(
title="Second comp entry", domain="comp", data={"vendor": "data2"}
)
# Finish the in progress flow
result = await manager.flow.async_configure(
result["flow_id"], user_input={"host": "127.0.0.1"}
)
assert result["type"] == data_entry_flow.FlowResultType.ABORT
assert result["reason"] == "single_instance_allowed"
assert result["translation_domain"] == HA_DOMAIN
async def test_in_progress_get_canceled_when_entry_is_created(