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config_entries.py
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"""Manage config entries in Home Assistant."""
from __future__ import annotations
import asyncio
from collections import ChainMap
from collections.abc import Callable, Coroutine, Generator, Iterable, Mapping
from contextvars import ContextVar
from copy import deepcopy
from enum import Enum
import functools
import logging
from random import randint
from types import MappingProxyType, MethodType
from typing import TYPE_CHECKING, Any, TypeVar, cast
import weakref
from typing_extensions import Self
from . import data_entry_flow, loader
from .backports.enum import StrEnum
from .components import persistent_notification
from .const import EVENT_HOMEASSISTANT_STARTED, EVENT_HOMEASSISTANT_STOP, Platform
from .core import CALLBACK_TYPE, CoreState, Event, HassJob, HomeAssistant, callback
from .data_entry_flow import FlowResult
from .exceptions import (
ConfigEntryAuthFailed,
ConfigEntryError,
ConfigEntryNotReady,
HomeAssistantError,
)
from .helpers import device_registry, entity_registry, storage
from .helpers.dispatcher import async_dispatcher_send
from .helpers.event import (
RANDOM_MICROSECOND_MAX,
RANDOM_MICROSECOND_MIN,
async_call_later,
)
from .helpers.frame import report
from .helpers.typing import UNDEFINED, ConfigType, DiscoveryInfoType, UndefinedType
from .setup import DATA_SETUP_DONE, async_process_deps_reqs, async_setup_component
from .util import uuid as uuid_util
from .util.decorator import Registry
if TYPE_CHECKING:
from .components.bluetooth import BluetoothServiceInfoBleak
from .components.dhcp import DhcpServiceInfo
from .components.hassio import HassioServiceInfo
from .components.ssdp import SsdpServiceInfo
from .components.usb import UsbServiceInfo
from .components.zeroconf import ZeroconfServiceInfo
from .helpers.service_info.mqtt import MqttServiceInfo
_LOGGER = logging.getLogger(__name__)
SOURCE_BLUETOOTH = "bluetooth"
SOURCE_DHCP = "dhcp"
SOURCE_DISCOVERY = "discovery"
SOURCE_HASSIO = "hassio"
SOURCE_HOMEKIT = "homekit"
SOURCE_IMPORT = "import"
SOURCE_INTEGRATION_DISCOVERY = "integration_discovery"
SOURCE_MQTT = "mqtt"
SOURCE_SSDP = "ssdp"
SOURCE_USB = "usb"
SOURCE_USER = "user"
SOURCE_ZEROCONF = "zeroconf"
# If a user wants to hide a discovery from the UI they can "Ignore" it. The
# config_entries/ignore_flow websocket command creates a config entry with this
# source and while it exists normal discoveries with the same unique id are ignored.
SOURCE_IGNORE = "ignore"
# This is used when a user uses the "Stop Ignoring" button in the UI (the
# config_entries/ignore_flow websocket command). It's triggered after the
# "ignore" config entry has been removed and unloaded.
SOURCE_UNIGNORE = "unignore"
# This is used to signal that re-authentication is required by the user.
SOURCE_REAUTH = "reauth"
HANDLERS: Registry[str, type[ConfigFlow]] = Registry()
STORAGE_KEY = "core.config_entries"
STORAGE_VERSION = 1
# Deprecated since 0.73
PATH_CONFIG = ".config_entries.json"
SAVE_DELAY = 1
_R = TypeVar("_R")
class ConfigEntryState(Enum):
"""Config entry state."""
LOADED = "loaded", True
"""The config entry has been set up successfully"""
SETUP_ERROR = "setup_error", True
"""There was an error while trying to set up this config entry"""
MIGRATION_ERROR = "migration_error", False
"""There was an error while trying to migrate the config entry to a new version"""
SETUP_RETRY = "setup_retry", True
"""The config entry was not ready to be set up yet, but might be later"""
NOT_LOADED = "not_loaded", True
"""The config entry has not been loaded"""
FAILED_UNLOAD = "failed_unload", False
"""An error occurred when trying to unload the entry"""
SETUP_IN_PROGRESS = "setup_in_progress", False
"""The config entry is setting up."""
_recoverable: bool
def __new__(cls, value: str, recoverable: bool) -> Self:
"""Create new ConfigEntryState."""
obj = object.__new__(cls)
obj._value_ = value
obj._recoverable = recoverable
return obj
@property
def recoverable(self) -> bool:
"""Get if the state is recoverable.
If the entry state is recoverable, unloads
and reloads are allowed.
"""
return self._recoverable
DEFAULT_DISCOVERY_UNIQUE_ID = "default_discovery_unique_id"
DISCOVERY_NOTIFICATION_ID = "config_entry_discovery"
DISCOVERY_SOURCES = {
SOURCE_BLUETOOTH,
SOURCE_DHCP,
SOURCE_DISCOVERY,
SOURCE_HOMEKIT,
SOURCE_IMPORT,
SOURCE_INTEGRATION_DISCOVERY,
SOURCE_MQTT,
SOURCE_SSDP,
SOURCE_UNIGNORE,
SOURCE_USB,
SOURCE_ZEROCONF,
}
RECONFIGURE_NOTIFICATION_ID = "config_entry_reconfigure"
EVENT_FLOW_DISCOVERED = "config_entry_discovered"
SIGNAL_CONFIG_ENTRY_CHANGED = "config_entry_changed"
class ConfigEntryChange(StrEnum):
"""What was changed in a config entry."""
ADDED = "added"
REMOVED = "removed"
UPDATED = "updated"
class ConfigEntryDisabler(StrEnum):
"""What disabled a config entry."""
USER = "user"
# DISABLED_* is deprecated, to be removed in 2022.3
DISABLED_USER = ConfigEntryDisabler.USER.value
RELOAD_AFTER_UPDATE_DELAY = 30
# Deprecated: Connection classes
# These aren't used anymore since 2021.6.0
# Mainly here not to break custom integrations.
CONN_CLASS_CLOUD_PUSH = "cloud_push"
CONN_CLASS_CLOUD_POLL = "cloud_poll"
CONN_CLASS_LOCAL_PUSH = "local_push"
CONN_CLASS_LOCAL_POLL = "local_poll"
CONN_CLASS_ASSUMED = "assumed"
CONN_CLASS_UNKNOWN = "unknown"
class ConfigError(HomeAssistantError):
"""Error while configuring an account."""
class UnknownEntry(ConfigError):
"""Unknown entry specified."""
class OperationNotAllowed(ConfigError):
"""Raised when a config entry operation is not allowed."""
UpdateListenerType = Callable[[HomeAssistant, "ConfigEntry"], Coroutine[Any, Any, None]]
class ConfigEntry:
"""Hold a configuration entry."""
__slots__ = (
"entry_id",
"version",
"domain",
"title",
"data",
"options",
"unique_id",
"supports_unload",
"supports_remove_device",
"pref_disable_new_entities",
"pref_disable_polling",
"source",
"state",
"disabled_by",
"_setup_lock",
"update_listeners",
"reason",
"_async_cancel_retry_setup",
"_on_unload",
"reload_lock",
"_tasks",
"_background_tasks",
)
def __init__(
self,
version: int,
domain: str,
title: str,
data: Mapping[str, Any],
source: str,
pref_disable_new_entities: bool | None = None,
pref_disable_polling: bool | None = None,
options: Mapping[str, Any] | None = None,
unique_id: str | None = None,
entry_id: str | None = None,
state: ConfigEntryState = ConfigEntryState.NOT_LOADED,
disabled_by: ConfigEntryDisabler | None = None,
) -> None:
"""Initialize a config entry."""
# Unique id of the config entry
self.entry_id = entry_id or uuid_util.random_uuid_hex()
# Version of the configuration.
self.version = version
# Domain the configuration belongs to
self.domain = domain
# Title of the configuration
self.title = title
# Config data
self.data = MappingProxyType(data)
# Entry options
self.options = MappingProxyType(options or {})
# Entry system options
if pref_disable_new_entities is None:
pref_disable_new_entities = False
self.pref_disable_new_entities = pref_disable_new_entities
if pref_disable_polling is None:
pref_disable_polling = False
self.pref_disable_polling = pref_disable_polling
# Source of the configuration (user, discovery, cloud)
self.source = source
# State of the entry (LOADED, NOT_LOADED)
self.state = state
# Unique ID of this entry.
self.unique_id = unique_id
# Config entry is disabled
if isinstance(disabled_by, str) and not isinstance(
disabled_by, ConfigEntryDisabler
):
report( # type: ignore[unreachable]
(
"uses str for config entry disabled_by. This is deprecated and will"
" stop working in Home Assistant 2022.3, it should be updated to"
" use ConfigEntryDisabler instead"
),
error_if_core=False,
)
disabled_by = ConfigEntryDisabler(disabled_by)
self.disabled_by = disabled_by
# Supports unload
self.supports_unload: bool | None = None
# Supports remove device
self.supports_remove_device: bool | None = None
# Listeners to call on update
self.update_listeners: list[
weakref.ReferenceType[UpdateListenerType] | weakref.WeakMethod
] = []
# Reason why config entry is in a failed state
self.reason: str | None = None
# Function to cancel a scheduled retry
self._async_cancel_retry_setup: Callable[[], Any] | None = None
# Hold list for actions to call on unload.
self._on_unload: list[
Callable[[], Coroutine[Any, Any, None] | None]
] | None = None
# Reload lock to prevent conflicting reloads
self.reload_lock = asyncio.Lock()
self._tasks: set[asyncio.Future[Any]] = set()
self._background_tasks: set[asyncio.Future[Any]] = set()
async def async_setup(
self,
hass: HomeAssistant,
*,
integration: loader.Integration | None = None,
tries: int = 0,
) -> None:
"""Set up an entry."""
current_entry.set(self)
if self.source == SOURCE_IGNORE or self.disabled_by:
return
if integration is None:
integration = await loader.async_get_integration(hass, self.domain)
# Only store setup result as state if it was not forwarded.
if self.domain == integration.domain:
self.async_set_state(hass, ConfigEntryState.SETUP_IN_PROGRESS, None)
if self.supports_unload is None:
self.supports_unload = await support_entry_unload(hass, self.domain)
if self.supports_remove_device is None:
self.supports_remove_device = await support_remove_from_device(
hass, self.domain
)
try:
component = integration.get_component()
except ImportError as err:
_LOGGER.error(
"Error importing integration %s to set up %s configuration entry: %s",
integration.domain,
self.domain,
err,
)
if self.domain == integration.domain:
self.async_set_state(hass, ConfigEntryState.SETUP_ERROR, "Import error")
return
if self.domain == integration.domain:
try:
integration.get_platform("config_flow")
except ImportError as err:
_LOGGER.error(
(
"Error importing platform config_flow from integration %s to"
" set up %s configuration entry: %s"
),
integration.domain,
self.domain,
err,
)
self.async_set_state(hass, ConfigEntryState.SETUP_ERROR, "Import error")
return
# Perform migration
if not await self.async_migrate(hass):
self.async_set_state(hass, ConfigEntryState.MIGRATION_ERROR, None)
return
error_reason = None
try:
result = await component.async_setup_entry(hass, self)
if not isinstance(result, bool):
_LOGGER.error( # type: ignore[unreachable]
"%s.async_setup_entry did not return boolean", integration.domain
)
result = False
except ConfigEntryError as ex:
error_reason = str(ex) or "Unknown fatal config entry error"
_LOGGER.exception(
"Error setting up entry %s for %s: %s",
self.title,
self.domain,
error_reason,
)
await self._async_process_on_unload(hass)
result = False
except ConfigEntryAuthFailed as ex:
message = str(ex)
auth_base_message = "could not authenticate"
error_reason = message or auth_base_message
auth_message = (
f"{auth_base_message}: {message}" if message else auth_base_message
)
_LOGGER.warning(
"Config entry '%s' for %s integration %s",
self.title,
self.domain,
auth_message,
)
await self._async_process_on_unload(hass)
self.async_start_reauth(hass)
result = False
except ConfigEntryNotReady as ex:
self.async_set_state(hass, ConfigEntryState.SETUP_RETRY, str(ex) or None)
wait_time = 2 ** min(tries, 4) * 5 + (
randint(RANDOM_MICROSECOND_MIN, RANDOM_MICROSECOND_MAX) / 1000000
)
tries += 1
message = str(ex)
ready_message = f"ready yet: {message}" if message else "ready yet"
if tries == 1:
_LOGGER.warning(
(
"Config entry '%s' for %s integration not %s; Retrying in"
" background"
),
self.title,
self.domain,
ready_message,
)
else:
_LOGGER.debug(
(
"Config entry '%s' for %s integration not %s; Retrying in %d"
" seconds"
),
self.title,
self.domain,
ready_message,
wait_time,
)
async def setup_again(*_: Any) -> None:
"""Run setup again."""
# Check again when we fire in case shutdown
# has started so we do not block shutdown
if hass.is_stopping:
return
self._async_cancel_retry_setup = None
await self.async_setup(hass, integration=integration, tries=tries)
if hass.state == CoreState.running:
self._async_cancel_retry_setup = async_call_later(
hass, wait_time, setup_again
)
else:
self._async_cancel_retry_setup = hass.bus.async_listen_once(
EVENT_HOMEASSISTANT_STARTED, setup_again
)
await self._async_process_on_unload(hass)
return
# pylint: disable-next=broad-except
except (asyncio.CancelledError, SystemExit, Exception):
_LOGGER.exception(
"Error setting up entry %s for %s", self.title, integration.domain
)
result = False
# Only store setup result as state if it was not forwarded.
if self.domain != integration.domain:
return
if result:
self.async_set_state(hass, ConfigEntryState.LOADED, None)
else:
self.async_set_state(hass, ConfigEntryState.SETUP_ERROR, error_reason)
async def async_shutdown(self) -> None:
"""Call when Home Assistant is stopping."""
self.async_cancel_retry_setup()
@callback
def async_cancel_retry_setup(self) -> None:
"""Cancel retry setup."""
if self._async_cancel_retry_setup is not None:
self._async_cancel_retry_setup()
self._async_cancel_retry_setup = None
async def async_unload(
self, hass: HomeAssistant, *, integration: loader.Integration | None = None
) -> bool:
"""Unload an entry.
Returns if unload is possible and was successful.
"""
if self.source == SOURCE_IGNORE:
self.async_set_state(hass, ConfigEntryState.NOT_LOADED, None)
return True
if self.state == ConfigEntryState.NOT_LOADED:
return True
if integration is None:
try:
integration = await loader.async_get_integration(hass, self.domain)
except loader.IntegrationNotFound:
# The integration was likely a custom_component
# that was uninstalled, or an integration
# that has been renamed without removing the config
# entry.
self.async_set_state(hass, ConfigEntryState.NOT_LOADED, None)
return True
component = integration.get_component()
if integration.domain == self.domain:
if not self.state.recoverable:
return False
if self.state is not ConfigEntryState.LOADED:
self.async_cancel_retry_setup()
self.async_set_state(hass, ConfigEntryState.NOT_LOADED, None)
return True
supports_unload = hasattr(component, "async_unload_entry")
if not supports_unload:
if integration.domain == self.domain:
self.async_set_state(
hass, ConfigEntryState.FAILED_UNLOAD, "Unload not supported"
)
return False
try:
result = await component.async_unload_entry(hass, self)
assert isinstance(result, bool)
# Only adjust state if we unloaded the component
if result and integration.domain == self.domain:
self.async_set_state(hass, ConfigEntryState.NOT_LOADED, None)
await self._async_process_on_unload(hass)
return result
except Exception as ex: # pylint: disable=broad-except
_LOGGER.exception(
"Error unloading entry %s for %s", self.title, integration.domain
)
if integration.domain == self.domain:
self.async_set_state(
hass, ConfigEntryState.FAILED_UNLOAD, str(ex) or "Unknown error"
)
return False
async def async_remove(self, hass: HomeAssistant) -> None:
"""Invoke remove callback on component."""
if self.source == SOURCE_IGNORE:
return
try:
integration = await loader.async_get_integration(hass, self.domain)
except loader.IntegrationNotFound:
# The integration was likely a custom_component
# that was uninstalled, or an integration
# that has been renamed without removing the config
# entry.
return
component = integration.get_component()
if not hasattr(component, "async_remove_entry"):
return
try:
await component.async_remove_entry(hass, self)
except Exception: # pylint: disable=broad-except
_LOGGER.exception(
"Error calling entry remove callback %s for %s",
self.title,
integration.domain,
)
@callback
def async_set_state(
self, hass: HomeAssistant, state: ConfigEntryState, reason: str | None
) -> None:
"""Set the state of the config entry."""
self.state = state
self.reason = reason
async_dispatcher_send(
hass, SIGNAL_CONFIG_ENTRY_CHANGED, ConfigEntryChange.UPDATED, self
)
async def async_migrate(self, hass: HomeAssistant) -> bool:
"""Migrate an entry.
Returns True if config entry is up-to-date or has been migrated.
"""
if (handler := HANDLERS.get(self.domain)) is None:
_LOGGER.error(
"Flow handler not found for entry %s for %s", self.title, self.domain
)
return False
# Handler may be a partial
# Keep for backwards compatibility
# https://github.com/home-assistant/core/pull/67087#discussion_r812559950
while isinstance(handler, functools.partial):
handler = handler.func # type: ignore[unreachable]
if self.version == handler.VERSION:
return True
integration = await loader.async_get_integration(hass, self.domain)
component = integration.get_component()
supports_migrate = hasattr(component, "async_migrate_entry")
if not supports_migrate:
_LOGGER.error(
"Migration handler not found for entry %s for %s",
self.title,
self.domain,
)
return False
try:
result = await component.async_migrate_entry(hass, self)
if not isinstance(result, bool):
_LOGGER.error( # type: ignore[unreachable]
"%s.async_migrate_entry did not return boolean", self.domain
)
return False
if result:
# pylint: disable-next=protected-access
hass.config_entries._async_schedule_save()
return result
except Exception: # pylint: disable=broad-except
_LOGGER.exception(
"Error migrating entry %s for %s", self.title, self.domain
)
return False
def add_update_listener(self, listener: UpdateListenerType) -> CALLBACK_TYPE:
"""Listen for when entry is updated.
Returns function to unlisten.
"""
weak_listener: Any
# weakref.ref is not applicable to a bound method, e.g.,
# method of a class instance, as reference will die immediately.
if hasattr(listener, "__self__"):
weak_listener = weakref.WeakMethod(cast(MethodType, listener))
else:
weak_listener = weakref.ref(listener)
self.update_listeners.append(weak_listener)
return lambda: self.update_listeners.remove(weak_listener)
def as_dict(self) -> dict[str, Any]:
"""Return dictionary version of this entry."""
return {
"entry_id": self.entry_id,
"version": self.version,
"domain": self.domain,
"title": self.title,
"data": dict(self.data),
"options": dict(self.options),
"pref_disable_new_entities": self.pref_disable_new_entities,
"pref_disable_polling": self.pref_disable_polling,
"source": self.source,
"unique_id": self.unique_id,
"disabled_by": self.disabled_by,
}
@callback
def async_on_unload(
self, func: Callable[[], Coroutine[Any, Any, None] | None]
) -> None:
"""Add a function to call when config entry is unloaded."""
if self._on_unload is None:
self._on_unload = []
self._on_unload.append(func)
async def _async_process_on_unload(self, hass: HomeAssistant) -> None:
"""Process the on_unload callbacks and wait for pending tasks."""
if self._on_unload is not None:
while self._on_unload:
if job := self._on_unload.pop()():
self._tasks.add(hass.async_create_task(job))
if not self._tasks and not self._background_tasks:
return
for task in self._background_tasks:
task.cancel()
_, pending = await asyncio.wait(
[*self._tasks, *self._background_tasks], timeout=10
)
for task in pending:
_LOGGER.warning(
"Unloading %s (%s) config entry. Task %s did not complete in time",
self.title,
self.domain,
task,
)
@callback
def async_start_reauth(
self,
hass: HomeAssistant,
context: dict[str, Any] | None = None,
data: dict[str, Any] | None = None,
) -> None:
"""Start a reauth flow."""
if any(self.async_get_active_flows(hass, {SOURCE_REAUTH})):
# Reauth flow already in progress for this entry
return
hass.async_create_task(
hass.config_entries.flow.async_init(
self.domain,
context={
"source": SOURCE_REAUTH,
"entry_id": self.entry_id,
"title_placeholders": {"name": self.title},
"unique_id": self.unique_id,
}
| (context or {}),
data=self.data | (data or {}),
),
f"config entry reauth {self.title} {self.domain} {self.entry_id}",
)
@callback
def async_get_active_flows(
self, hass: HomeAssistant, sources: set[str]
) -> Generator[FlowResult, None, None]:
"""Get any active flows of certain sources for this entry."""
return (
flow
for flow in hass.config_entries.flow.async_progress_by_handler(self.domain)
if flow["context"].get("source") in sources
and flow["context"].get("entry_id") == self.entry_id
)
@callback
def async_create_task(
self,
hass: HomeAssistant,
target: Coroutine[Any, Any, _R],
name: str | None = None,
) -> asyncio.Task[_R]:
"""Create a task from within the event loop.
This method must be run in the event loop.
target: target to call.
"""
task = hass.async_create_task(
target, f"{name} {self.title} {self.domain} {self.entry_id}"
)
self._tasks.add(task)
task.add_done_callback(self._tasks.remove)
return task
@callback
def async_create_background_task(
self, hass: HomeAssistant, target: Coroutine[Any, Any, _R], name: str
) -> asyncio.Task[_R]:
"""Create a background task tied to the config entry lifecycle.
Background tasks are automatically canceled when config entry is unloaded.
target: target to call.
"""
task = hass.async_create_background_task(target, name)
self._background_tasks.add(task)
task.add_done_callback(self._background_tasks.remove)
return task
current_entry: ContextVar[ConfigEntry | None] = ContextVar(
"current_entry", default=None
)
class ConfigEntriesFlowManager(data_entry_flow.FlowManager):
"""Manage all the config entry flows that are in progress."""
def __init__(
self,
hass: HomeAssistant,
config_entries: ConfigEntries,
hass_config: ConfigType,
) -> None:
"""Initialize the config entry flow manager."""
super().__init__(hass)
self.config_entries = config_entries
self._hass_config = hass_config
self._pending_import_flows: dict[str, dict[str, asyncio.Future[None]]] = {}
self._initialize_tasks: dict[str, list[asyncio.Task]] = {}
async def async_wait_import_flow_initialized(self, handler: str) -> None:
"""Wait till all import flows in progress are initialized."""
if not (current := self._pending_import_flows.get(handler)):
return
await asyncio.wait(current.values())
@callback
def _async_has_other_discovery_flows(self, flow_id: str) -> bool:
"""Check if there are any other discovery flows in progress."""
return any(
flow.context["source"] in DISCOVERY_SOURCES and flow.flow_id != flow_id
for flow in self._progress.values()
)
async def async_init(
self, handler: str, *, context: dict[str, Any] | None = None, data: Any = None
) -> FlowResult:
"""Start a configuration flow."""
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()
if context["source"] == SOURCE_IMPORT:
init_done: asyncio.Future[None] = asyncio.Future()
self._pending_import_flows.setdefault(handler, {})[flow_id] = init_done
task = asyncio.create_task(
self._async_init(flow_id, handler, context, data),
name=f"config entry flow {handler} {flow_id}",
)
self._initialize_tasks.setdefault(handler, []).append(task)
try:
flow, result = await task
finally:
self._initialize_tasks[handler].remove(task)
self._pending_import_flows.get(handler, {}).pop(flow_id, None)
if result["type"] != data_entry_flow.FlowResultType.ABORT:
await self.async_post_init(flow, result)
return result
async def _async_init(
self,
flow_id: str,
handler: str,
context: dict,
data: Any,
) -> tuple[data_entry_flow.FlowHandler, FlowResult]:
"""Run the init in a task to allow it to be canceled at shutdown."""
flow = await self.async_create_flow(handler, context=context, data=data)
if not flow:
raise data_entry_flow.UnknownFlow("Flow was not created")
flow.hass = self.hass
flow.handler = handler
flow.flow_id = flow_id
flow.context = context
flow.init_data = data
self._async_add_flow_progress(flow)
try:
result = await self._async_handle_step(flow, flow.init_step, data)
finally:
init_done = self._pending_import_flows.get(handler, {}).get(flow_id)
if init_done and not init_done.done():
init_done.set_result(None)
return flow, result
async def async_shutdown(self) -> None:
"""Cancel any initializing flows."""
for task_list in self._initialize_tasks.values():
for task in task_list:
task.cancel()
async def async_finish_flow(
self, flow: data_entry_flow.FlowHandler, result: data_entry_flow.FlowResult
) -> data_entry_flow.FlowResult:
"""Finish a config flow and add an entry."""
flow = cast(ConfigFlow, flow)
# Mark the step as done.
# We do this to avoid a circular dependency where async_finish_flow sets up a
# new entry, which needs the integration to be set up, which is waiting for
# init to be done.
init_done = self._pending_import_flows.get(flow.handler, {}).get(flow.flow_id)
if init_done and not init_done.done():
init_done.set_result(None)
# Remove notification if no other discovery config entries in progress
if not self._async_has_other_discovery_flows(flow.flow_id):
persistent_notification.async_dismiss(self.hass, DISCOVERY_NOTIFICATION_ID)
if result["type"] != data_entry_flow.FlowResultType.CREATE_ENTRY:
return result
# Check if config entry exists with unique ID. Unload it.
existing_entry = None
# Abort all flows in progress with same unique ID
# or the default discovery ID
for progress_flow in self.async_progress_by_handler(flow.handler):
progress_unique_id = progress_flow["context"].get("unique_id")
if progress_flow["flow_id"] != flow.flow_id and (
(flow.unique_id and progress_unique_id == flow.unique_id)
or progress_unique_id == DEFAULT_DISCOVERY_UNIQUE_ID
):
self.async_abort(progress_flow["flow_id"])
if flow.unique_id is not None:
# Reset unique ID when the default discovery ID has been used
if flow.unique_id == DEFAULT_DISCOVERY_UNIQUE_ID:
await flow.async_set_unique_id(None)
# Find existing entry.
for check_entry in self.config_entries.async_entries(result["handler"]):
if check_entry.unique_id == flow.unique_id:
existing_entry = check_entry
break
# Unload the entry before setting up the new one.
# We will remove it only after the other one is set up,
# so that device customizations are not getting lost.
if existing_entry is not None and existing_entry.state.recoverable:
await self.config_entries.async_unload(existing_entry.entry_id)
entry = ConfigEntry(
version=result["version"],
domain=result["handler"],
title=result["title"],
data=result["data"],
options=result["options"],
source=flow.context["source"],
unique_id=flow.unique_id,
)
await self.config_entries.async_add(entry)
if existing_entry is not None:
await self.config_entries.async_remove(existing_entry.entry_id)
result["result"] = entry
return result
async def async_create_flow(
self, handler_key: str, *, context: dict | None = None, data: Any = None
) -> ConfigFlow:
"""Create a flow for specified handler.
Handler key is the domain of the component that we want to set up.
"""
await _load_integration(self.hass, handler_key, self._hass_config)
if (handler := HANDLERS.get(handler_key)) is None:
raise data_entry_flow.UnknownHandler
if not context or "source" not in context:
raise KeyError("Context not set or doesn't have a source set")
flow = handler()
flow.init_step = context["source"]
return flow
async def async_post_init(
self, flow: data_entry_flow.FlowHandler, result: data_entry_flow.FlowResult
) -> None:
"""After a flow is initialised trigger new flow notifications."""
source = flow.context["source"]
# Create notification.
if source in DISCOVERY_SOURCES:
self.hass.bus.async_fire(EVENT_FLOW_DISCOVERED)
persistent_notification.async_create(
self.hass,
title="New devices discovered",
message=(
"We have discovered new devices on your network. "
"[Check it out](/config/integrations)."
),
notification_id=DISCOVERY_NOTIFICATION_ID,
)
elif source == SOURCE_REAUTH:
persistent_notification.async_create(
self.hass,
title="Integration requires reconfiguration",
message=(
"At least one of your integrations requires reconfiguration to "
"continue functioning. [Check it out](/config/integrations)."
),
notification_id=RECONFIGURE_NOTIFICATION_ID,
)