core/homeassistant/components/minecraft_server/config_flow.py

96 lines
3.0 KiB
Python

"""Config flow for Minecraft Server integration."""
import logging
from mcstatus import JavaServer
import voluptuous as vol
from homeassistant.config_entries import ConfigFlow
from homeassistant.const import CONF_ADDRESS, CONF_NAME
from homeassistant.data_entry_flow import FlowResult
from .const import DEFAULT_NAME, DOMAIN
DEFAULT_ADDRESS = "localhost:25565"
_LOGGER = logging.getLogger(__name__)
class MinecraftServerConfigFlow(ConfigFlow, domain=DOMAIN):
"""Handle a config flow for Minecraft Server."""
VERSION = 3
async def async_step_user(self, user_input=None) -> FlowResult:
"""Handle the initial step."""
errors = {}
if user_input:
address = user_input[CONF_ADDRESS]
if await self._async_is_server_online(address):
# No error was detected, create configuration entry.
config_data = {CONF_NAME: user_input[CONF_NAME], CONF_ADDRESS: address}
return self.async_create_entry(title=address, data=config_data)
# Host or port invalid or server not reachable.
errors["base"] = "cannot_connect"
# Show configuration form (default form in case of no user_input,
# form filled with user_input and eventually with errors otherwise).
return self._show_config_form(user_input, errors)
def _show_config_form(self, user_input=None, errors=None) -> FlowResult:
"""Show the setup form to the user."""
if user_input is None:
user_input = {}
return self.async_show_form(
step_id="user",
data_schema=vol.Schema(
{
vol.Required(
CONF_NAME, default=user_input.get(CONF_NAME, DEFAULT_NAME)
): str,
vol.Required(
CONF_ADDRESS,
default=user_input.get(CONF_ADDRESS, DEFAULT_ADDRESS),
): vol.All(str, vol.Lower),
}
),
errors=errors,
)
async def _async_is_server_online(self, address: str) -> bool:
"""Check server connection using a 'status' request and return result."""
# Parse and check server address.
try:
server = await JavaServer.async_lookup(address)
except ValueError as error:
_LOGGER.debug(
(
"Error occurred while parsing server address '%s' -"
" ValueError: %s"
),
address,
error,
)
return False
# Send a status request to the server.
try:
await server.async_status()
return True
except OSError as error:
_LOGGER.debug(
(
"Error occurred while trying to check the connection to '%s:%s' -"
" OSError: %s"
),
server.address.host,
server.address.port,
error,
)
return False