Remove strict connection (#117933)
This commit is contained in:
parent
6f81852eb4
commit
cb62f4242e
32 changed files with 39 additions and 1816 deletions
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@ -10,8 +10,7 @@ import os
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import socket
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import ssl
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from tempfile import NamedTemporaryFile
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from typing import Any, Final, Required, TypedDict, cast
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from urllib.parse import quote_plus, urljoin
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from typing import Any, Final, TypedDict, cast
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from aiohttp import web
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from aiohttp.abc import AbstractStreamWriter
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@ -30,20 +29,8 @@ from yarl import URL
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from homeassistant.components.network import async_get_source_ip
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from homeassistant.const import EVENT_HOMEASSISTANT_STOP, SERVER_PORT
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from homeassistant.core import (
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Event,
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HomeAssistant,
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ServiceCall,
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ServiceResponse,
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SupportsResponse,
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callback,
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)
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from homeassistant.exceptions import (
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HomeAssistantError,
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ServiceValidationError,
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Unauthorized,
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UnknownUser,
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)
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from homeassistant.core import Event, HomeAssistant
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from homeassistant.exceptions import HomeAssistantError
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from homeassistant.helpers import storage
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import homeassistant.helpers.config_validation as cv
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from homeassistant.helpers.http import (
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@ -66,14 +53,9 @@ from homeassistant.util import dt as dt_util, ssl as ssl_util
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from homeassistant.util.async_ import create_eager_task
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from homeassistant.util.json import json_loads
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from .auth import async_setup_auth, async_sign_path
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from .auth import async_setup_auth
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from .ban import setup_bans
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from .const import ( # noqa: F401
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DOMAIN,
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KEY_HASS_REFRESH_TOKEN_ID,
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KEY_HASS_USER,
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StrictConnectionMode,
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)
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from .const import DOMAIN, KEY_HASS_REFRESH_TOKEN_ID, KEY_HASS_USER # noqa: F401
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from .cors import setup_cors
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from .decorators import require_admin # noqa: F401
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from .forwarded import async_setup_forwarded
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@ -96,7 +78,6 @@ CONF_TRUSTED_PROXIES: Final = "trusted_proxies"
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CONF_LOGIN_ATTEMPTS_THRESHOLD: Final = "login_attempts_threshold"
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CONF_IP_BAN_ENABLED: Final = "ip_ban_enabled"
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CONF_SSL_PROFILE: Final = "ssl_profile"
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CONF_STRICT_CONNECTION: Final = "strict_connection"
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SSL_MODERN: Final = "modern"
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SSL_INTERMEDIATE: Final = "intermediate"
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@ -146,9 +127,6 @@ HTTP_SCHEMA: Final = vol.All(
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[SSL_INTERMEDIATE, SSL_MODERN]
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),
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vol.Optional(CONF_USE_X_FRAME_OPTIONS, default=True): cv.boolean,
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vol.Optional(
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CONF_STRICT_CONNECTION, default=StrictConnectionMode.DISABLED
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): vol.Coerce(StrictConnectionMode),
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}
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),
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)
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@ -172,7 +150,6 @@ class ConfData(TypedDict, total=False):
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login_attempts_threshold: int
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ip_ban_enabled: bool
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ssl_profile: str
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strict_connection: Required[StrictConnectionMode]
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@bind_hass
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@ -241,7 +218,6 @@ async def async_setup(hass: HomeAssistant, config: ConfigType) -> bool:
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login_threshold=login_threshold,
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is_ban_enabled=is_ban_enabled,
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use_x_frame_options=use_x_frame_options,
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strict_connection_non_cloud=conf[CONF_STRICT_CONNECTION],
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)
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async def stop_server(event: Event) -> None:
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@ -271,7 +247,6 @@ async def async_setup(hass: HomeAssistant, config: ConfigType) -> bool:
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local_ip, host, server_port, ssl_certificate is not None
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)
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_setup_services(hass, conf)
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return True
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@ -356,7 +331,6 @@ class HomeAssistantHTTP:
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login_threshold: int,
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is_ban_enabled: bool,
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use_x_frame_options: bool,
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strict_connection_non_cloud: StrictConnectionMode,
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) -> None:
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"""Initialize the server."""
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self.app[KEY_HASS] = self.hass
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@ -373,7 +347,7 @@ class HomeAssistantHTTP:
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if is_ban_enabled:
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setup_bans(self.hass, self.app, login_threshold)
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await async_setup_auth(self.hass, self.app, strict_connection_non_cloud)
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await async_setup_auth(self.hass, self.app)
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setup_headers(self.app, use_x_frame_options)
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setup_cors(self.app, cors_origins)
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@ -602,61 +576,3 @@ async def start_http_server_and_save_config(
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]
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store.async_delay_save(lambda: conf, SAVE_DELAY)
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@callback
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def _setup_services(hass: HomeAssistant, conf: ConfData) -> None:
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"""Set up services for HTTP component."""
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async def create_temporary_strict_connection_url(
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call: ServiceCall,
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) -> ServiceResponse:
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"""Create a strict connection url and return it."""
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# Copied form homeassistant/helpers/service.py#_async_admin_handler
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# as the helper supports no responses yet
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if call.context.user_id:
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user = await hass.auth.async_get_user(call.context.user_id)
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if user is None:
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raise UnknownUser(context=call.context)
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if not user.is_admin:
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raise Unauthorized(context=call.context)
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if conf[CONF_STRICT_CONNECTION] is StrictConnectionMode.DISABLED:
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raise ServiceValidationError(
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translation_domain=DOMAIN,
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translation_key="strict_connection_not_enabled_non_cloud",
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)
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try:
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url = get_url(
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hass, prefer_external=True, allow_internal=False, allow_cloud=False
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)
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except NoURLAvailableError as ex:
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raise ServiceValidationError(
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translation_domain=DOMAIN,
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translation_key="no_external_url_available",
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) from ex
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# to avoid circular import
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# pylint: disable-next=import-outside-toplevel
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from homeassistant.components.auth import STRICT_CONNECTION_URL
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path = async_sign_path(
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hass,
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STRICT_CONNECTION_URL,
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datetime.timedelta(hours=1),
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use_content_user=True,
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)
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url = urljoin(url, path)
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return {
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"url": f"https://login.home-assistant.io?u={quote_plus(url)}",
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"direct_url": url,
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}
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hass.services.async_register(
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DOMAIN,
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"create_temporary_strict_connection_url",
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create_temporary_strict_connection_url,
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supports_response=SupportsResponse.ONLY,
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)
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@ -4,18 +4,14 @@ from __future__ import annotations
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from collections.abc import Awaitable, Callable
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from datetime import timedelta
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from http import HTTPStatus
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from ipaddress import ip_address
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import logging
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import os
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import secrets
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import time
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from typing import Any, Final
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from aiohttp import hdrs
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from aiohttp.web import Application, Request, Response, StreamResponse, middleware
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from aiohttp.web_exceptions import HTTPBadRequest
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from aiohttp_session import session_middleware
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from aiohttp.web import Application, Request, StreamResponse, middleware
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import jwt
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from jwt import api_jws
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from yarl import URL
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@ -25,21 +21,13 @@ from homeassistant.auth.const import GROUP_ID_READ_ONLY
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from homeassistant.auth.models import User
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from homeassistant.components import websocket_api
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from homeassistant.core import HomeAssistant, callback
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from homeassistant.helpers import singleton
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from homeassistant.helpers.http import current_request
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from homeassistant.helpers.json import json_bytes
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from homeassistant.helpers.network import is_cloud_connection
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from homeassistant.helpers.storage import Store
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from homeassistant.util.network import is_local
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from .const import (
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DOMAIN,
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KEY_AUTHENTICATED,
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KEY_HASS_REFRESH_TOKEN_ID,
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KEY_HASS_USER,
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StrictConnectionMode,
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)
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from .session import HomeAssistantCookieStorage
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from .const import KEY_AUTHENTICATED, KEY_HASS_REFRESH_TOKEN_ID, KEY_HASS_USER
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_LOGGER = logging.getLogger(__name__)
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@ -51,11 +39,6 @@ SAFE_QUERY_PARAMS: Final = ["height", "width"]
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STORAGE_VERSION = 1
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STORAGE_KEY = "http.auth"
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CONTENT_USER_NAME = "Home Assistant Content"
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STRICT_CONNECTION_EXCLUDED_PATH = "/api/webhook/"
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STRICT_CONNECTION_GUARD_PAGE_NAME = "strict_connection_guard_page.html"
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STRICT_CONNECTION_GUARD_PAGE = os.path.join(
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os.path.dirname(__file__), STRICT_CONNECTION_GUARD_PAGE_NAME
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)
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@callback
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@ -137,7 +120,6 @@ def async_user_not_allowed_do_auth(
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async def async_setup_auth(
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hass: HomeAssistant,
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app: Application,
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strict_connection_mode_non_cloud: StrictConnectionMode,
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) -> None:
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"""Create auth middleware for the app."""
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store = Store[dict[str, Any]](hass, STORAGE_VERSION, STORAGE_KEY)
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@ -160,10 +142,6 @@ async def async_setup_auth(
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hass.data[STORAGE_KEY] = refresh_token.id
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if strict_connection_mode_non_cloud is StrictConnectionMode.GUARD_PAGE:
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# Load the guard page content on setup
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await _read_strict_connection_guard_page(hass)
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@callback
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def async_validate_auth_header(request: Request) -> bool:
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"""Test authorization header against access token.
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@ -252,37 +230,6 @@ async def async_setup_auth(
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authenticated = True
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auth_type = "signed request"
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if not authenticated and not request.path.startswith(
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STRICT_CONNECTION_EXCLUDED_PATH
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):
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strict_connection_mode = strict_connection_mode_non_cloud
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strict_connection_func = (
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_async_perform_strict_connection_action_on_non_local
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)
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if is_cloud_connection(hass):
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from homeassistant.components.cloud.util import ( # pylint: disable=import-outside-toplevel
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get_strict_connection_mode,
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)
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strict_connection_mode = get_strict_connection_mode(hass)
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strict_connection_func = _async_perform_strict_connection_action
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if (
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strict_connection_mode is not StrictConnectionMode.DISABLED
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and not await hass.auth.session.async_validate_request_for_strict_connection_session(
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request
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)
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and (
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resp := await strict_connection_func(
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hass,
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request,
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strict_connection_mode is StrictConnectionMode.GUARD_PAGE,
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)
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)
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is not None
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):
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return resp
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if authenticated and _LOGGER.isEnabledFor(logging.DEBUG):
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_LOGGER.debug(
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"Authenticated %s for %s using %s",
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@ -294,69 +241,4 @@ async def async_setup_auth(
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request[KEY_AUTHENTICATED] = authenticated
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return await handler(request)
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app.middlewares.append(session_middleware(HomeAssistantCookieStorage(hass)))
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app.middlewares.append(auth_middleware)
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async def _async_perform_strict_connection_action_on_non_local(
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hass: HomeAssistant,
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request: Request,
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guard_page: bool,
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) -> StreamResponse | None:
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"""Perform strict connection mode action if the request is not local.
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The function does the following:
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- Try to get the IP address of the request. If it fails, assume it's not local
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- If the request is local, return None (allow the request to continue)
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- If guard_page is True, return a response with the content
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- Otherwise close the connection and raise an exception
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"""
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try:
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ip_address_ = ip_address(request.remote) # type: ignore[arg-type]
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except ValueError:
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_LOGGER.debug("Invalid IP address: %s", request.remote)
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ip_address_ = None
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if ip_address_ and is_local(ip_address_):
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return None
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return await _async_perform_strict_connection_action(hass, request, guard_page)
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async def _async_perform_strict_connection_action(
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hass: HomeAssistant,
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request: Request,
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guard_page: bool,
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) -> StreamResponse | None:
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"""Perform strict connection mode action.
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The function does the following:
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- If guard_page is True, return a response with the content
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- Otherwise close the connection and raise an exception
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"""
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_LOGGER.debug("Perform strict connection action for %s", request.remote)
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if guard_page:
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return Response(
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text=await _read_strict_connection_guard_page(hass),
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content_type="text/html",
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status=HTTPStatus.IM_A_TEAPOT,
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)
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if transport := request.transport:
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# it should never happen that we don't have a transport
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transport.close()
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# We need to raise an exception to stop processing the request
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raise HTTPBadRequest
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@singleton.singleton(f"{DOMAIN}_{STRICT_CONNECTION_GUARD_PAGE_NAME}")
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async def _read_strict_connection_guard_page(hass: HomeAssistant) -> str:
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"""Read the strict connection guard page from disk via executor."""
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def read_guard_page() -> str:
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with open(STRICT_CONNECTION_GUARD_PAGE, encoding="utf-8") as file:
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return file.read()
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return await hass.async_add_executor_job(read_guard_page)
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@ -1,6 +1,5 @@
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"""HTTP specific constants."""
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from enum import StrEnum
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from typing import Final
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from homeassistant.helpers.http import KEY_AUTHENTICATED, KEY_HASS # noqa: F401
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@ -9,11 +8,3 @@ DOMAIN: Final = "http"
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KEY_HASS_USER: Final = "hass_user"
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KEY_HASS_REFRESH_TOKEN_ID: Final = "hass_refresh_token_id"
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class StrictConnectionMode(StrEnum):
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"""Enum for strict connection mode."""
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DISABLED = "disabled"
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GUARD_PAGE = "guard_page"
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DROP_CONNECTION = "drop_connection"
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@ -1,5 +0,0 @@
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{
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"services": {
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"create_temporary_strict_connection_url": "mdi:login-variant"
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}
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}
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@ -1 +0,0 @@
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create_temporary_strict_connection_url: ~
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@ -1,160 +0,0 @@
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"""Session http module."""
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from functools import lru_cache
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import logging
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from aiohttp.web import Request, StreamResponse
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from aiohttp_session import Session, SessionData
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from aiohttp_session.cookie_storage import EncryptedCookieStorage
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from cryptography.fernet import InvalidToken
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from homeassistant.auth.const import REFRESH_TOKEN_EXPIRATION
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from homeassistant.core import HomeAssistant
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from homeassistant.helpers.json import json_dumps
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from homeassistant.helpers.network import is_cloud_connection
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from homeassistant.util.json import JSON_DECODE_EXCEPTIONS, json_loads
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from .ban import process_wrong_login
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_LOGGER = logging.getLogger(__name__)
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COOKIE_NAME = "SC"
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PREFIXED_COOKIE_NAME = f"__Host-{COOKIE_NAME}"
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SESSION_CACHE_SIZE = 16
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def _get_cookie_name(is_secure: bool) -> str:
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"""Return the cookie name."""
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return PREFIXED_COOKIE_NAME if is_secure else COOKIE_NAME
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class HomeAssistantCookieStorage(EncryptedCookieStorage):
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"""Home Assistant cookie storage.
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Own class is required:
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- to set the secure flag based on the connection type
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- to use a LRU cache for session decryption
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"""
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def __init__(self, hass: HomeAssistant) -> None:
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"""Initialize the cookie storage."""
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super().__init__(
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hass.auth.session.key,
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cookie_name=PREFIXED_COOKIE_NAME,
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max_age=int(REFRESH_TOKEN_EXPIRATION),
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httponly=True,
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samesite="Lax",
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secure=True,
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encoder=json_dumps,
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decoder=json_loads,
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)
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self._hass = hass
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def _secure_connection(self, request: Request) -> bool:
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"""Return if the connection is secure (https)."""
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return is_cloud_connection(self._hass) or request.secure
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def load_cookie(self, request: Request) -> str | None:
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"""Load cookie."""
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is_secure = self._secure_connection(request)
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cookie_name = _get_cookie_name(is_secure)
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return request.cookies.get(cookie_name)
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@lru_cache(maxsize=SESSION_CACHE_SIZE)
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def _decrypt_cookie(self, cookie: str) -> Session | None:
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"""Decrypt and validate cookie."""
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try:
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data = SessionData( # type: ignore[misc]
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self._decoder(
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self._fernet.decrypt(
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cookie.encode("utf-8"), ttl=self.max_age
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).decode("utf-8")
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)
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)
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except (InvalidToken, TypeError, ValueError, *JSON_DECODE_EXCEPTIONS):
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_LOGGER.warning("Cannot decrypt/parse cookie value")
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return None
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session = Session(None, data=data, new=data is None, max_age=self.max_age)
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# Validate session if not empty
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if (
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not session.empty
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||||
and not self._hass.auth.session.async_validate_strict_connection_session(
|
||||
session
|
||||
)
|
||||
):
|
||||
# Invalidate session as it is not valid
|
||||
session.invalidate()
|
||||
|
||||
return session
|
||||
|
||||
async def new_session(self) -> Session:
|
||||
"""Create a new session and mark it as changed."""
|
||||
session = Session(None, data=None, new=True, max_age=self.max_age)
|
||||
session.changed()
|
||||
return session
|
||||
|
||||
async def load_session(self, request: Request) -> Session:
|
||||
"""Load session."""
|
||||
# Split parent function to use lru_cache
|
||||
if (cookie := self.load_cookie(request)) is None:
|
||||
return await self.new_session()
|
||||
|
||||
if (session := self._decrypt_cookie(cookie)) is None:
|
||||
# Decrypting/parsing failed, log wrong login and create a new session
|
||||
await process_wrong_login(request)
|
||||
session = await self.new_session()
|
||||
|
||||
return session
|
||||
|
||||
async def save_session(
|
||||
self, request: Request, response: StreamResponse, session: Session
|
||||
) -> None:
|
||||
"""Save session."""
|
||||
|
||||
is_secure = self._secure_connection(request)
|
||||
cookie_name = _get_cookie_name(is_secure)
|
||||
|
||||
if session.empty:
|
||||
response.del_cookie(cookie_name)
|
||||
else:
|
||||
params = self.cookie_params.copy()
|
||||
params["secure"] = is_secure
|
||||
params["max_age"] = session.max_age
|
||||
|
||||
cookie_data = self._encoder(self._get_session_data(session)).encode("utf-8")
|
||||
response.set_cookie(
|
||||
cookie_name,
|
||||
self._fernet.encrypt(cookie_data).decode("utf-8"),
|
||||
**params,
|
||||
)
|
||||
# Add Cache-Control header to not cache the cookie as it
|
||||
# is used for session management
|
||||
self._add_cache_control_header(response)
|
||||
|
||||
@staticmethod
|
||||
def _add_cache_control_header(response: StreamResponse) -> None:
|
||||
"""Add/set cache control header to no-cache="Set-Cookie"."""
|
||||
# Structure of the Cache-Control header defined in
|
||||
# https://datatracker.ietf.org/doc/html/rfc2068#section-14.9
|
||||
if header := response.headers.get("Cache-Control"):
|
||||
directives = []
|
||||
for directive in header.split(","):
|
||||
directive = directive.strip()
|
||||
directive_lowered = directive.lower()
|
||||
if directive_lowered.startswith("no-cache"):
|
||||
if "set-cookie" in directive_lowered or directive.find("=") == -1:
|
||||
# Set-Cookie is already in the no-cache directive or
|
||||
# the whole request should not be cached -> Nothing to do
|
||||
return
|
||||
|
||||
# Add Set-Cookie to the no-cache
|
||||
# [:-1] to remove the " at the end of the directive
|
||||
directive = f"{directive[:-1]}, Set-Cookie"
|
||||
|
||||
directives.append(directive)
|
||||
header = ", ".join(directives)
|
||||
else:
|
||||
header = 'no-cache="Set-Cookie"'
|
||||
response.headers["Cache-Control"] = header
|
File diff suppressed because one or more lines are too long
|
@ -1,16 +0,0 @@
|
|||
{
|
||||
"exceptions": {
|
||||
"strict_connection_not_enabled_non_cloud": {
|
||||
"message": "Strict connection is not enabled for non-cloud requests"
|
||||
},
|
||||
"no_external_url_available": {
|
||||
"message": "No external URL available"
|
||||
}
|
||||
},
|
||||
"services": {
|
||||
"create_temporary_strict_connection_url": {
|
||||
"name": "Create a temporary strict connection URL",
|
||||
"description": "Create a temporary strict connection URL, which can be used to login on another device."
|
||||
}
|
||||
}
|
||||
}
|
Loading…
Add table
Add a link
Reference in a new issue