core/homeassistant/components/synology_dsm/config_flow.py

431 lines
15 KiB
Python

"""Config flow to configure the Synology DSM integration."""
from __future__ import annotations
from collections.abc import Mapping
from ipaddress import ip_address as ip
import logging
from typing import Any, cast
from urllib.parse import urlparse
from synology_dsm import SynologyDSM
from synology_dsm.exceptions import (
SynologyDSMException,
SynologyDSMLogin2SAFailedException,
SynologyDSMLogin2SARequiredException,
SynologyDSMLoginInvalidException,
SynologyDSMRequestException,
)
import voluptuous as vol
from homeassistant.config_entries import (
ConfigEntry,
ConfigFlow,
ConfigFlowResult,
OptionsFlow,
)
from homeassistant.const import (
CONF_DISKS,
CONF_HOST,
CONF_MAC,
CONF_NAME,
CONF_PASSWORD,
CONF_PORT,
CONF_SCAN_INTERVAL,
CONF_SSL,
CONF_USERNAME,
CONF_VERIFY_SSL,
)
from homeassistant.core import callback
from homeassistant.exceptions import HomeAssistantError
from homeassistant.helpers.aiohttp_client import async_get_clientsession
import homeassistant.helpers.config_validation as cv
from homeassistant.helpers.service_info.ssdp import (
ATTR_UPNP_FRIENDLY_NAME,
ATTR_UPNP_SERIAL,
SsdpServiceInfo,
)
from homeassistant.helpers.service_info.zeroconf import ZeroconfServiceInfo
from homeassistant.helpers.typing import DiscoveryInfoType, VolDictType
from homeassistant.util.network import is_ip_address as is_ip
from .const import (
CONF_DEVICE_TOKEN,
CONF_SNAPSHOT_QUALITY,
CONF_VOLUMES,
DEFAULT_PORT,
DEFAULT_PORT_SSL,
DEFAULT_SCAN_INTERVAL,
DEFAULT_SNAPSHOT_QUALITY,
DEFAULT_TIMEOUT,
DEFAULT_USE_SSL,
DEFAULT_VERIFY_SSL,
DOMAIN,
)
_LOGGER = logging.getLogger(__name__)
CONF_OTP_CODE = "otp_code"
HTTP_SUFFIX = "._http._tcp.local."
def _discovery_schema_with_defaults(discovery_info: DiscoveryInfoType) -> vol.Schema:
return vol.Schema(_ordered_shared_schema(discovery_info))
def _reauth_schema() -> vol.Schema:
return vol.Schema(
{
vol.Required(CONF_USERNAME): str,
vol.Required(CONF_PASSWORD): str,
}
)
def _user_schema_with_defaults(user_input: dict[str, Any]) -> vol.Schema:
user_schema: VolDictType = {
vol.Required(CONF_HOST, default=user_input.get(CONF_HOST, "")): str,
}
user_schema.update(_ordered_shared_schema(user_input))
return vol.Schema(user_schema)
def _ordered_shared_schema(schema_input: dict[str, Any]) -> VolDictType:
return {
vol.Required(CONF_USERNAME, default=schema_input.get(CONF_USERNAME, "")): str,
vol.Required(CONF_PASSWORD, default=schema_input.get(CONF_PASSWORD, "")): str,
vol.Optional(CONF_PORT, default=schema_input.get(CONF_PORT, "")): str,
vol.Optional(
CONF_SSL, default=schema_input.get(CONF_SSL, DEFAULT_USE_SSL)
): bool,
vol.Optional(
CONF_VERIFY_SSL,
default=schema_input.get(CONF_VERIFY_SSL, DEFAULT_VERIFY_SSL),
): bool,
}
def format_synology_mac(mac: str) -> str:
"""Format a mac address to the format used by Synology DSM."""
return mac.replace(":", "").replace("-", "").upper()
class SynologyDSMFlowHandler(ConfigFlow, domain=DOMAIN):
"""Handle a config flow."""
VERSION = 1
@staticmethod
@callback
def async_get_options_flow(
config_entry: ConfigEntry,
) -> SynologyDSMOptionsFlowHandler:
"""Get the options flow for this handler."""
return SynologyDSMOptionsFlowHandler()
def __init__(self) -> None:
"""Initialize the synology_dsm config flow."""
self.saved_user_input: dict[str, Any] = {}
self.discovered_conf: dict[str, Any] = {}
self.reauth_conf: Mapping[str, Any] = {}
self.reauth_reason: str | None = None
def _show_form(
self,
step_id: str,
user_input: dict[str, Any] | None = None,
errors: dict[str, str] | None = None,
) -> ConfigFlowResult:
"""Show the setup form to the user."""
if not user_input:
user_input = {}
description_placeholders = {}
data_schema = None
if step_id == "link":
user_input.update(self.discovered_conf)
data_schema = _discovery_schema_with_defaults(user_input)
description_placeholders = self.discovered_conf
elif step_id == "reauth_confirm":
data_schema = _reauth_schema()
elif step_id == "user":
data_schema = _user_schema_with_defaults(user_input)
return self.async_show_form(
step_id=step_id,
data_schema=data_schema,
errors=errors or {},
description_placeholders=description_placeholders,
)
async def async_validate_input_create_entry(
self, user_input: dict[str, Any], step_id: str
) -> ConfigFlowResult:
"""Process user input and create new or update existing config entry."""
host = user_input[CONF_HOST]
port = user_input.get(CONF_PORT)
username = user_input[CONF_USERNAME]
password = user_input[CONF_PASSWORD]
use_ssl = user_input.get(CONF_SSL, DEFAULT_USE_SSL)
verify_ssl = user_input.get(CONF_VERIFY_SSL, DEFAULT_VERIFY_SSL)
otp_code = user_input.get(CONF_OTP_CODE)
friendly_name = user_input.get(CONF_NAME)
if not port:
if use_ssl is True:
port = DEFAULT_PORT_SSL
else:
port = DEFAULT_PORT
session = async_get_clientsession(self.hass, verify_ssl)
api = SynologyDSM(
session, host, port, username, password, use_ssl, timeout=DEFAULT_TIMEOUT
)
errors = {}
try:
serial = await _login_and_fetch_syno_info(api, otp_code)
except SynologyDSMLogin2SARequiredException:
return await self.async_step_2sa(user_input)
except SynologyDSMLogin2SAFailedException:
errors[CONF_OTP_CODE] = "otp_failed"
user_input[CONF_OTP_CODE] = None
return await self.async_step_2sa(user_input, errors)
except SynologyDSMLoginInvalidException as ex:
_LOGGER.error(ex)
errors[CONF_USERNAME] = "invalid_auth"
except SynologyDSMRequestException as ex:
_LOGGER.error(ex)
errors[CONF_HOST] = "cannot_connect"
except SynologyDSMException as ex:
_LOGGER.error(ex)
errors["base"] = "unknown"
except InvalidData:
errors["base"] = "missing_data"
if errors:
return self._show_form(step_id, user_input, errors)
# unique_id should be serial for services purpose
existing_entry = await self.async_set_unique_id(serial, raise_on_progress=False)
config_data = {
CONF_HOST: host,
CONF_PORT: port,
CONF_SSL: use_ssl,
CONF_VERIFY_SSL: verify_ssl,
CONF_USERNAME: username,
CONF_PASSWORD: password,
CONF_MAC: api.network.macs,
}
if otp_code:
config_data[CONF_DEVICE_TOKEN] = api.device_token
if user_input.get(CONF_DISKS):
config_data[CONF_DISKS] = user_input[CONF_DISKS]
if user_input.get(CONF_VOLUMES):
config_data[CONF_VOLUMES] = user_input[CONF_VOLUMES]
if existing_entry:
reason = (
"reauth_successful" if self.reauth_conf else "reconfigure_successful"
)
return self.async_update_reload_and_abort(
existing_entry, data=config_data, reason=reason
)
return self.async_create_entry(title=friendly_name or host, data=config_data)
async def async_step_user(
self, user_input: dict[str, Any] | None = None
) -> ConfigFlowResult:
"""Handle a flow initiated by the user."""
step = "user"
if not user_input:
return self._show_form(step)
return await self.async_validate_input_create_entry(user_input, step_id=step)
async def async_step_zeroconf(
self, discovery_info: ZeroconfServiceInfo
) -> ConfigFlowResult:
"""Handle a discovered synology_dsm via zeroconf."""
discovered_macs = [
format_synology_mac(mac)
for mac in discovery_info.properties.get("mac_address", "").split("|")
if mac
]
if not discovered_macs:
return self.async_abort(reason="no_mac_address")
host = discovery_info.host
friendly_name = discovery_info.name.removesuffix(HTTP_SUFFIX)
return await self._async_from_discovery(host, friendly_name, discovered_macs)
async def async_step_ssdp(
self, discovery_info: SsdpServiceInfo
) -> ConfigFlowResult:
"""Handle a discovered synology_dsm via ssdp."""
parsed_url = urlparse(discovery_info.ssdp_location)
upnp_friendly_name: str = discovery_info.upnp[ATTR_UPNP_FRIENDLY_NAME]
friendly_name = upnp_friendly_name.split("(", 1)[0].strip()
mac_address = discovery_info.upnp[ATTR_UPNP_SERIAL]
discovered_macs = [format_synology_mac(mac_address)]
# Synology NAS can broadcast on multiple IP addresses, since they can be connected to multiple ethernets.
# The serial of the NAS is actually its MAC address.
host = cast(str, parsed_url.hostname)
return await self._async_from_discovery(host, friendly_name, discovered_macs)
async def _async_from_discovery(
self, host: str, friendly_name: str, discovered_macs: list[str]
) -> ConfigFlowResult:
"""Handle a discovered synology_dsm via zeroconf or ssdp."""
existing_entry = None
for discovered_mac in discovered_macs:
await self.async_set_unique_id(discovered_mac)
if existing_entry := self._async_get_existing_entry(discovered_mac):
break
self._abort_if_unique_id_configured()
if (
existing_entry
and is_ip(existing_entry.data[CONF_HOST])
and is_ip(host)
and existing_entry.data[CONF_HOST] != host
and ip(existing_entry.data[CONF_HOST]).version == ip(host).version
):
_LOGGER.debug(
"Update host from '%s' to '%s' for NAS '%s' via discovery",
existing_entry.data[CONF_HOST],
host,
existing_entry.unique_id,
)
self.hass.config_entries.async_update_entry(
existing_entry,
data={**existing_entry.data, CONF_HOST: host},
)
return self.async_abort(reason="reconfigure_successful")
if existing_entry:
return self.async_abort(reason="already_configured")
self.discovered_conf = {
CONF_NAME: friendly_name,
CONF_HOST: host,
}
self.context["title_placeholders"] = self.discovered_conf
return await self.async_step_link()
async def async_step_link(
self, user_input: dict[str, Any] | None = None
) -> ConfigFlowResult:
"""Link a config entry from discovery."""
step = "link"
if not user_input:
return self._show_form(step)
user_input = {**self.discovered_conf, **user_input}
return await self.async_validate_input_create_entry(user_input, step_id=step)
async def async_step_reauth(
self, entry_data: Mapping[str, Any]
) -> ConfigFlowResult:
"""Perform reauth upon an API authentication error."""
self.reauth_conf = entry_data
placeholders = {
**self.context["title_placeholders"],
CONF_HOST: entry_data[CONF_HOST],
}
self.context["title_placeholders"] = placeholders
return await self.async_step_reauth_confirm()
async def async_step_reauth_confirm(
self, user_input: dict[str, Any] | None = None
) -> ConfigFlowResult:
"""Perform reauth confirm upon an API authentication error."""
step = "reauth_confirm"
if not user_input:
return self._show_form(step)
user_input = {**self.reauth_conf, **user_input}
return await self.async_validate_input_create_entry(user_input, step_id=step)
async def async_step_2sa(
self, user_input: dict[str, Any], errors: dict[str, str] | None = None
) -> ConfigFlowResult:
"""Enter 2SA code to anthenticate."""
if not self.saved_user_input:
self.saved_user_input = user_input
if not user_input.get(CONF_OTP_CODE):
return self.async_show_form(
step_id="2sa",
data_schema=vol.Schema({vol.Required(CONF_OTP_CODE): str}),
errors=errors or {},
)
user_input = {**self.saved_user_input, **user_input}
self.saved_user_input = {}
return await self.async_step_user(user_input)
def _async_get_existing_entry(self, discovered_mac: str) -> ConfigEntry | None:
"""See if we already have a configured NAS with this MAC address."""
for entry in self._async_current_entries():
if discovered_mac in [
format_synology_mac(mac) for mac in entry.data.get(CONF_MAC, [])
]:
return entry
return None
class SynologyDSMOptionsFlowHandler(OptionsFlow):
"""Handle a option flow."""
async def async_step_init(
self, user_input: dict[str, Any] | None = None
) -> ConfigFlowResult:
"""Handle options flow."""
if user_input is not None:
return self.async_create_entry(title="", data=user_input)
data_schema = vol.Schema(
{
vol.Required(
CONF_SCAN_INTERVAL,
default=self.config_entry.options.get(
CONF_SCAN_INTERVAL, DEFAULT_SCAN_INTERVAL
),
): cv.positive_int,
vol.Required(
CONF_SNAPSHOT_QUALITY,
default=self.config_entry.options.get(
CONF_SNAPSHOT_QUALITY, DEFAULT_SNAPSHOT_QUALITY
),
): vol.All(vol.Coerce(int), vol.Range(min=0, max=2)),
}
)
return self.async_show_form(step_id="init", data_schema=data_schema)
async def _login_and_fetch_syno_info(api: SynologyDSM, otp_code: str | None) -> str:
"""Login to the NAS and fetch basic data."""
# These do i/o
await api.login(otp_code)
await api.utilisation.update()
await api.storage.update()
await api.network.update()
if (
not api.information.serial
or api.utilisation.cpu_user_load is None
or not api.storage.volumes_ids
or not api.network.macs
):
raise InvalidData
return api.information.serial
class InvalidData(HomeAssistantError):
"""Error to indicate we get invalid data from the nas."""