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Add support for Minecraft SRV records (#32372)

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* Added support for Minecraft SRV records

* Switched from dnspython to aiodns, improved server ping and log messages, use address instead of host and port in config flow

* Updated component requirements
This commit is contained in:
elmurato 2020-03-24 00:51:13 +01:00 committed by GitHub
parent cd57b764ce
commit 45241e57ca
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
10 changed files with 245 additions and 96 deletions
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1
.coveragerc
View File

@ -425,6 +425,7 @@ omit =
homeassistant/components/minecraft_server/__init__.py
homeassistant/components/minecraft_server/binary_sensor.py
homeassistant/components/minecraft_server/const.py
homeassistant/components/minecraft_server/helpers.py
homeassistant/components/minecraft_server/sensor.py
homeassistant/components/minio/*
homeassistant/components/mitemp_bt/sensor.py

48
homeassistant/components/minecraft_server/__init__.py
View File

@ -18,6 +18,7 @@ from homeassistant.helpers.entity import Entity
from homeassistant.helpers.event import async_track_time_interval
from homeassistant.helpers.typing import ConfigType, HomeAssistantType
from . import helpers
from .const import DOMAIN, MANUFACTURER, SCAN_INTERVAL, SIGNAL_NAME_PREFIX
PLATFORMS = ["binary_sensor", "sensor"]
@ -37,10 +38,9 @@ async def async_setup_entry(hass: HomeAssistantType, config_entry: ConfigEntry)
# Create and store server instance.
unique_id = config_entry.unique_id
_LOGGER.debug(
"Creating server instance for '%s' (host='%s', port=%s)",
"Creating server instance for '%s' (%s)",
config_entry.data[CONF_NAME],
config_entry.data[CONF_HOST],
config_entry.data[CONF_PORT],
)
server = MinecraftServer(hass, unique_id, config_entry.data)
domain_data[unique_id] = server
@ -82,7 +82,6 @@ class MinecraftServer:
"""Representation of a Minecraft server."""
# Private constants
_MAX_RETRIES_PING = 3
_MAX_RETRIES_STATUS = 3
def __init__(
@ -98,6 +97,7 @@ class MinecraftServer:
self.port = config_data[CONF_PORT]
self.online = False
self._last_status_request_failed = False
self.srv_record_checked = False
# 3rd party library instance
self._mc_status = MCStatus(self.host, self.port)
@ -127,15 +127,36 @@ class MinecraftServer:
self._stop_periodic_update()
async def async_check_connection(self) -> None:
"""Check server connection using a 'ping' request and store result."""
"""Check server connection using a 'status' request and store connection status."""
# Check if host is a valid SRV record, if not already done.
if not self.srv_record_checked:
self.srv_record_checked = True
srv_record = await helpers.async_check_srv_record(self._hass, self.host)
if srv_record is not None:
_LOGGER.debug(
"'%s' is a valid Minecraft SRV record ('%s:%s')",
self.host,
srv_record[CONF_HOST],
srv_record[CONF_PORT],
)
# Overwrite host, port and 3rd party library instance
# with data extracted out of SRV record.
self.host = srv_record[CONF_HOST]
self.port = srv_record[CONF_PORT]
self._mc_status = MCStatus(self.host, self.port)
# Ping the server with a status request.
try:
await self._hass.async_add_executor_job(
self._mc_status.ping, self._MAX_RETRIES_PING
self._mc_status.status, self._MAX_RETRIES_STATUS
)
self.online = True
except OSError as error:
_LOGGER.debug(
"Error occurred while trying to ping the server - OSError: %s", error
"Error occurred while trying to check the connection to '%s:%s' - OSError: %s",
self.host,
self.port,
error,
)
self.online = False
@ -148,9 +169,9 @@ class MinecraftServer:
# Inform user once about connection state changes if necessary.
if server_online_old and not server_online:
_LOGGER.warning("Connection to server lost")
_LOGGER.warning("Connection to '%s:%s' lost", self.host, self.port)
elif not server_online_old and server_online:
_LOGGER.info("Connection to server (re-)established")
_LOGGER.info("Connection to '%s:%s' (re-)established", self.host, self.port)
# Update the server properties if server is online.
if server_online:
@ -179,7 +200,11 @@ class MinecraftServer:
# Inform user once about successful update if necessary.
if self._last_status_request_failed:
_LOGGER.info("Updating the server properties succeeded again")
_LOGGER.info(
"Updating the properties of '%s:%s' succeeded again",
self.host,
self.port,
)
self._last_status_request_failed = False
except OSError as error:
# No answer to request, set all properties to unknown.
@ -193,7 +218,10 @@ class MinecraftServer:
# Inform user once about failed update if necessary.
if not self._last_status_request_failed:
_LOGGER.warning(
"Updating the server properties failed - OSError: %s", error,
"Updating the properties of '%s:%s' failed - OSError: %s",
self.host,
self.port,
error,
)
self._last_status_request_failed = True

85
homeassistant/components/minecraft_server/config_flow.py
View File

@ -9,7 +9,7 @@ from homeassistant import config_entries
from homeassistant.config_entries import ConfigFlow
from homeassistant.const import CONF_HOST, CONF_NAME, CONF_PORT
from . import MinecraftServer
from . import MinecraftServer, helpers
from .const import ( # pylint: disable=unused-import
DEFAULT_HOST,
DEFAULT_NAME,
@ -29,11 +29,24 @@ class MinecraftServerConfigFlow(ConfigFlow, domain=DOMAIN):
errors = {}
if user_input is not None:
# User inputs.
host = user_input[CONF_HOST]
port = user_input[CONF_PORT]
host = None
port = DEFAULT_PORT
# Split address at last occurrence of ':'.
address_left, separator, address_right = user_input[CONF_HOST].rpartition(
":"
)
# If no separator is found, 'rpartition' return ('', '', original_string).
if separator == "":
host = address_right
else:
host = address_left
try:
port = int(address_right)
except ValueError:
pass # 'port' is already set to default value.
unique_id = ""
# Remove '[' and ']' in case of an IPv6 address.
host = host.strip("[]")
# Check if 'host' is a valid IP address and if so, get the MAC address.
ip_address = None
@ -42,6 +55,7 @@ class MinecraftServerConfigFlow(ConfigFlow, domain=DOMAIN):
ip_address = ipaddress.ip_address(host)
except ValueError:
# Host is not a valid IP address.
# Continue with host and port.
pass
else:
# Host is a valid IP address.
@ -55,38 +69,56 @@ class MinecraftServerConfigFlow(ConfigFlow, domain=DOMAIN):
partial(getmac.get_mac_address, **params)
)
# Validate IP address via valid MAC address.
# Validate IP address (MAC address must be available).
if ip_address is not None and mac_address is None:
errors["base"] = "invalid_ip"
# Validate port configuration (limit to user and dynamic port range).
elif (port < 1024) or (port > 65535):
errors["base"] = "invalid_port"
# Validate host and port via ping request to server.
# Validate host and port by checking the server connection.
else:
# Build unique_id.
if ip_address is not None:
# Since IP addresses can change and therefore are not allowed in a
# unique_id, fall back to the MAC address.
unique_id = f"{mac_address}-{port}"
else:
# Use host name in unique_id (host names should not change).
unique_id = f"{host}-{port}"
# Abort in case the host was already configured before.
await self.async_set_unique_id(unique_id)
self._abort_if_unique_id_configured()
# Create server instance with configuration data and try pinging the server.
server = MinecraftServer(self.hass, unique_id, user_input)
# Create server instance with configuration data and ping the server.
config_data = {
CONF_NAME: user_input[CONF_NAME],
CONF_HOST: host,
CONF_PORT: port,
}
server = MinecraftServer(self.hass, "dummy_unique_id", config_data)
await server.async_check_connection()
if not server.online:
# Host or port invalid or server not reachable.
errors["base"] = "cannot_connect"
else:
# Build unique_id and config entry title.
unique_id = ""
title = f"{host}:{port}"
if ip_address is not None:
# Since IP addresses can change and therefore are not allowed in a
# unique_id, fall back to the MAC address and port (to support
# servers with same MAC address but different ports).
unique_id = f"{mac_address}-{port}"
if ip_address.version == 6:
title = f"[{host}]:{port}"
else:
# Check if 'host' is a valid SRV record.
srv_record = await helpers.async_check_srv_record(
self.hass, host
)
if srv_record is not None:
# Use only SRV host name in unique_id (does not change).
unique_id = f"{host}-srv"
title = host
else:
# Use host name and port in unique_id (to support servers with
# same host name but different ports).
unique_id = f"{host}-{port}"
# Abort in case the host was already configured before.
await self.async_set_unique_id(unique_id)
self._abort_if_unique_id_configured()
# Configuration data are available and no error was detected, create configuration entry.
return self.async_create_entry(
title=f"{host}:{port}", data=user_input
)
return self.async_create_entry(title=title, data=config_data)
# Show configuration form (default form in case of no user_input,
# form filled with user_input and eventually with errors otherwise).
@ -107,9 +139,6 @@ class MinecraftServerConfigFlow(ConfigFlow, domain=DOMAIN):
vol.Required(
CONF_HOST, default=user_input.get(CONF_HOST, DEFAULT_HOST)
): vol.All(str, vol.Lower),
vol.Optional(
CONF_PORT, default=user_input.get(CONF_PORT, DEFAULT_PORT)
): int,
}
),
errors=errors,

4
homeassistant/components/minecraft_server/const.py
View File

@ -2,7 +2,7 @@
ATTR_PLAYERS_LIST = "players_list"
DEFAULT_HOST = "localhost"
DEFAULT_HOST = "localhost:25565"
DEFAULT_NAME = "Minecraft Server"
DEFAULT_PORT = 25565
@ -30,6 +30,8 @@ SCAN_INTERVAL = 60
SIGNAL_NAME_PREFIX = f"signal_{DOMAIN}"
SRV_RECORD_PREFIX = "_minecraft._tcp"
UNIT_PLAYERS_MAX = "players"
UNIT_PLAYERS_ONLINE = "players"
UNIT_PROTOCOL_VERSION = None

32
homeassistant/components/minecraft_server/helpers.py Normal file
View File

@ -0,0 +1,32 @@
"""Helper functions for the Minecraft Server integration."""
from typing import Any, Dict
import aiodns
from homeassistant.const import CONF_HOST, CONF_PORT
from homeassistant.helpers.typing import HomeAssistantType
from .const import SRV_RECORD_PREFIX
async def async_check_srv_record(hass: HomeAssistantType, host: str) -> Dict[str, Any]:
"""Check if the given host is a valid Minecraft SRV record."""
# Check if 'host' is a valid SRV record.
return_value = None
srv_records = None
try:
srv_records = await aiodns.DNSResolver().query(
host=f"{SRV_RECORD_PREFIX}.{host}", qtype="SRV"
)
except (aiodns.error.DNSError):
# 'host' is not a SRV record.
pass
else:
# 'host' is a valid SRV record, extract the data.
return_value = {
CONF_HOST: srv_records[0].host,
CONF_PORT: srv_records[0].port,
}
return return_value

2
homeassistant/components/minecraft_server/manifest.json
View File

@ -3,7 +3,7 @@
"name": "Minecraft Server",
"config_flow": true,
"documentation": "https://www.home-assistant.io/integrations/minecraft_server",
"requirements": ["getmac==0.8.1", "mcstatus==2.3.0"],
"requirements": ["aiodns==2.0.0", "getmac==0.8.1", "mcstatus==2.3.0"],
"dependencies": [],
"codeowners": ["@elmurato"],
"quality_scale": "silver"

3
homeassistant/components/minecraft_server/strings.json
View File

@ -7,8 +7,7 @@
"description": "Set up your Minecraft Server instance to allow monitoring.",
"data": {
"name": "Name",
"host": "Host",
"port": "Port"
"host": "Host"
}
}
},

1
requirements_all.txt
View File

@ -152,6 +152,7 @@ aioautomatic==0.6.5
aiobotocore==0.11.1
# homeassistant.components.dnsip
# homeassistant.components.minecraft_server
aiodns==2.0.0
# homeassistant.components.esphome

4
requirements_test_all.txt
View File

@ -58,6 +58,10 @@ aioautomatic==0.6.5
# homeassistant.components.aws
aiobotocore==0.11.1
# homeassistant.components.dnsip
# homeassistant.components.minecraft_server
aiodns==2.0.0
# homeassistant.components.esphome
aioesphomeapi==2.6.1

161
tests/components/minecraft_server/test_config_flow.py
View File

@ -1,5 +1,8 @@
"""Test the Minecraft Server config flow."""
import asyncio
import aiodns
from asynctest import patch
from mcstatus.pinger import PingResponse
@ -19,6 +22,19 @@ from homeassistant.helpers.typing import HomeAssistantType
from tests.common import MockConfigEntry
class QueryMock:
"""Mock for result of aiodns.DNSResolver.query."""
def __init__(self):
"""Set up query result mock."""
self.host = "mc.dummyserver.com"
self.port = 23456
self.priority = 1
self.weight = 1
self.ttl = None
STATUS_RESPONSE_RAW = {
"description": {"text": "Dummy Description"},
"version": {"name": "Dummy Version", "protocol": 123},
@ -35,34 +51,34 @@ STATUS_RESPONSE_RAW = {
USER_INPUT = {
CONF_NAME: DEFAULT_NAME,
CONF_HOST: "mc.dummyserver.com",
CONF_PORT: DEFAULT_PORT,
CONF_HOST: f"mc.dummyserver.com:{DEFAULT_PORT}",
}
USER_INPUT_SRV = {CONF_NAME: DEFAULT_NAME, CONF_HOST: "dummyserver.com"}
USER_INPUT_IPV4 = {
CONF_NAME: DEFAULT_NAME,
CONF_HOST: "1.1.1.1",
CONF_PORT: DEFAULT_PORT,
CONF_HOST: f"1.1.1.1:{DEFAULT_PORT}",
}
USER_INPUT_IPV6 = {
CONF_NAME: DEFAULT_NAME,
CONF_HOST: "::ffff:0101:0101",
CONF_PORT: DEFAULT_PORT,
CONF_HOST: f"[::ffff:0101:0101]:{DEFAULT_PORT}",
}
USER_INPUT_PORT_TOO_SMALL = {
CONF_NAME: DEFAULT_NAME,
CONF_HOST: "mc.dummyserver.com",
CONF_PORT: 1023,
CONF_HOST: f"mc.dummyserver.com:1023",
}
USER_INPUT_PORT_TOO_LARGE = {
CONF_NAME: DEFAULT_NAME,
CONF_HOST: "mc.dummyserver.com",
CONF_PORT: 65536,
CONF_HOST: f"mc.dummyserver.com:65536",
}
SRV_RECORDS = asyncio.Future()
SRV_RECORDS.set_result([QueryMock()])
async def test_show_config_form(hass: HomeAssistantType) -> None:
"""Test if initial configuration form is shown."""
@ -87,54 +103,96 @@ async def test_invalid_ip(hass: HomeAssistantType) -> None:
async def test_same_host(hass: HomeAssistantType) -> None:
"""Test abort in case of same host name."""
unique_id = f"{USER_INPUT[CONF_HOST]}-{USER_INPUT[CONF_PORT]}"
mock_config_entry = MockConfigEntry(
domain=DOMAIN, unique_id=unique_id, data=USER_INPUT
)
mock_config_entry.add_to_hass(hass)
with patch(
"aiodns.DNSResolver.query", side_effect=aiodns.error.DNSError,
):
with patch(
"mcstatus.server.MinecraftServer.status",
return_value=PingResponse(STATUS_RESPONSE_RAW),
):
unique_id = "mc.dummyserver.com-25565"
config_data = {
CONF_NAME: DEFAULT_NAME,
CONF_HOST: "mc.dummyserver.com",
CONF_PORT: DEFAULT_PORT,
}
mock_config_entry = MockConfigEntry(
domain=DOMAIN, unique_id=unique_id, data=config_data
)
mock_config_entry.add_to_hass(hass)
result = await hass.config_entries.flow.async_init(
DOMAIN, context={"source": SOURCE_USER}, data=USER_INPUT
)
result = await hass.config_entries.flow.async_init(
DOMAIN, context={"source": SOURCE_USER}, data=USER_INPUT
)
assert result["type"] == RESULT_TYPE_ABORT
assert result["reason"] == "already_configured"
assert result["type"] == RESULT_TYPE_ABORT
assert result["reason"] == "already_configured"
async def test_port_too_small(hass: HomeAssistantType) -> None:
"""Test error in case of a too small port."""
result = await hass.config_entries.flow.async_init(
DOMAIN, context={"source": SOURCE_USER}, data=USER_INPUT_PORT_TOO_SMALL
)
with patch(
"aiodns.DNSResolver.query", side_effect=aiodns.error.DNSError,
):
result = await hass.config_entries.flow.async_init(
DOMAIN, context={"source": SOURCE_USER}, data=USER_INPUT_PORT_TOO_SMALL
)
assert result["type"] == RESULT_TYPE_FORM
assert result["errors"] == {"base": "invalid_port"}
assert result["type"] == RESULT_TYPE_FORM
assert result["errors"] == {"base": "invalid_port"}
async def test_port_too_large(hass: HomeAssistantType) -> None:
"""Test error in case of a too large port."""
result = await hass.config_entries.flow.async_init(
DOMAIN, context={"source": SOURCE_USER}, data=USER_INPUT_PORT_TOO_LARGE
)
with patch(
"aiodns.DNSResolver.query", side_effect=aiodns.error.DNSError,
):
result = await hass.config_entries.flow.async_init(
DOMAIN, context={"source": SOURCE_USER}, data=USER_INPUT_PORT_TOO_LARGE
)
assert result["type"] == RESULT_TYPE_FORM
assert result["errors"] == {"base": "invalid_port"}
assert result["type"] == RESULT_TYPE_FORM
assert result["errors"] == {"base": "invalid_port"}
async def test_connection_failed(hass: HomeAssistantType) -> None:
"""Test error in case of a failed connection."""
with patch("mcstatus.server.MinecraftServer.ping", side_effect=OSError):
result = await hass.config_entries.flow.async_init(
DOMAIN, context={"source": SOURCE_USER}, data=USER_INPUT
)
with patch(
"aiodns.DNSResolver.query", side_effect=aiodns.error.DNSError,
):
with patch("mcstatus.server.MinecraftServer.status", side_effect=OSError):
result = await hass.config_entries.flow.async_init(
DOMAIN, context={"source": SOURCE_USER}, data=USER_INPUT
)
assert result["type"] == RESULT_TYPE_FORM
assert result["errors"] == {"base": "cannot_connect"}
assert result["type"] == RESULT_TYPE_FORM
assert result["errors"] == {"base": "cannot_connect"}
async def test_connection_succeeded_with_srv_record(hass: HomeAssistantType) -> None:
"""Test config entry in case of a successful connection with a SRV record."""
with patch(
"aiodns.DNSResolver.query", return_value=SRV_RECORDS,
):
with patch(
"mcstatus.server.MinecraftServer.status",
return_value=PingResponse(STATUS_RESPONSE_RAW),
):
result = await hass.config_entries.flow.async_init(
DOMAIN, context={"source": SOURCE_USER}, data=USER_INPUT_SRV
)
assert result["type"] == RESULT_TYPE_CREATE_ENTRY
assert result["title"] == USER_INPUT_SRV[CONF_HOST]
assert result["data"][CONF_NAME] == USER_INPUT_SRV[CONF_NAME]
assert result["data"][CONF_HOST] == USER_INPUT_SRV[CONF_HOST]
async def test_connection_succeeded_with_host(hass: HomeAssistantType) -> None:
"""Test config entry in case of a successful connection with a host name."""
with patch("mcstatus.server.MinecraftServer.ping", return_value=50):
with patch(
"aiodns.DNSResolver.query", side_effect=aiodns.error.DNSError,
):
with patch(
"mcstatus.server.MinecraftServer.status",
return_value=PingResponse(STATUS_RESPONSE_RAW),
@ -144,16 +202,17 @@ async def test_connection_succeeded_with_host(hass: HomeAssistantType) -> None:
)
assert result["type"] == RESULT_TYPE_CREATE_ENTRY
assert result["title"] == f"{USER_INPUT[CONF_HOST]}:{USER_INPUT[CONF_PORT]}"
assert result["title"] == USER_INPUT[CONF_HOST]
assert result["data"][CONF_NAME] == USER_INPUT[CONF_NAME]
assert result["data"][CONF_HOST] == USER_INPUT[CONF_HOST]
assert result["data"][CONF_PORT] == USER_INPUT[CONF_PORT]
assert result["data"][CONF_HOST] == "mc.dummyserver.com"
async def test_connection_succeeded_with_ip4(hass: HomeAssistantType) -> None:
"""Test config entry in case of a successful connection with an IPv4 address."""
with patch("getmac.get_mac_address", return_value="01:23:45:67:89:ab"):
with patch("mcstatus.server.MinecraftServer.ping", return_value=50):
with patch(
"aiodns.DNSResolver.query", side_effect=aiodns.error.DNSError,
):
with patch(
"mcstatus.server.MinecraftServer.status",
return_value=PingResponse(STATUS_RESPONSE_RAW),
@ -163,19 +222,17 @@ async def test_connection_succeeded_with_ip4(hass: HomeAssistantType) -> None:
)
assert result["type"] == RESULT_TYPE_CREATE_ENTRY
assert (
result["title"]
== f"{USER_INPUT_IPV4[CONF_HOST]}:{USER_INPUT_IPV4[CONF_PORT]}"
)
assert result["title"] == USER_INPUT_IPV4[CONF_HOST]
assert result["data"][CONF_NAME] == USER_INPUT_IPV4[CONF_NAME]
assert result["data"][CONF_HOST] == USER_INPUT_IPV4[CONF_HOST]
assert result["data"][CONF_PORT] == USER_INPUT_IPV4[CONF_PORT]
assert result["data"][CONF_HOST] == "1.1.1.1"
async def test_connection_succeeded_with_ip6(hass: HomeAssistantType) -> None:
"""Test config entry in case of a successful connection with an IPv6 address."""
with patch("getmac.get_mac_address", return_value="01:23:45:67:89:ab"):
with patch("mcstatus.server.MinecraftServer.ping", return_value=50):
with patch(
"aiodns.DNSResolver.query", side_effect=aiodns.error.DNSError,
):
with patch(
"mcstatus.server.MinecraftServer.status",
return_value=PingResponse(STATUS_RESPONSE_RAW),
@ -185,10 +242,6 @@ async def test_connection_succeeded_with_ip6(hass: HomeAssistantType) -> None:
)
assert result["type"] == RESULT_TYPE_CREATE_ENTRY
assert (
result["title"]
== f"{USER_INPUT_IPV6[CONF_HOST]}:{USER_INPUT_IPV6[CONF_PORT]}"
)
assert result["title"] == USER_INPUT_IPV6[CONF_HOST]
assert result["data"][CONF_NAME] == USER_INPUT_IPV6[CONF_NAME]
assert result["data"][CONF_HOST] == USER_INPUT_IPV6[CONF_HOST]
assert result["data"][CONF_PORT] == USER_INPUT_IPV6[CONF_PORT]
assert result["data"][CONF_HOST] == "::ffff:0101:0101"