07c1e3a4c4
* Try a different method to set ?storeToken * Formatting * Only insert storeToken on web client & fix tests
145 lines
5.3 KiB
Python
145 lines
5.3 KiB
Python
"""Welcome route to show the user the OIDC login button and give instructions."""
|
|
|
|
from ast import List
|
|
import base64
|
|
import binascii
|
|
from urllib.parse import urlparse, parse_qs, unquote, urlencode
|
|
from aiohttp import web
|
|
from homeassistant.components.http import HomeAssistantView
|
|
from ..tools.helpers import error_response, get_url, template_response
|
|
from ..provider import OpenIDAuthProvider
|
|
|
|
PATH = "/auth/oidc/welcome"
|
|
|
|
|
|
class OIDCWelcomeView(HomeAssistantView):
|
|
"""OIDC Plugin Welcome View."""
|
|
|
|
requires_auth = False
|
|
url = PATH
|
|
name = "auth:oidc:welcome"
|
|
|
|
def __init__(
|
|
self,
|
|
oidc_provider: OpenIDAuthProvider,
|
|
name: str,
|
|
force_https: bool,
|
|
has_other_auth_providers: bool,
|
|
) -> None:
|
|
self.oidc_provider = oidc_provider
|
|
self.name = name
|
|
self.force_https = force_https
|
|
self.has_other_auth_providers = has_other_auth_providers
|
|
|
|
async def _process_url(self, redirect_uri: str) -> List[str, bool]:
|
|
"""Processes the redirect URI to determine if we need setTokens and if this is mobile."""
|
|
# decodeURIComponent(btoa(...)) -> unquote first, then base64 decode
|
|
redirect_uri = base64.b64decode(unquote(redirect_uri), validate=True).decode(
|
|
"utf-8"
|
|
)
|
|
|
|
oauth2_url = urlparse(redirect_uri)
|
|
oauth2_query = parse_qs(oauth2_url.query)
|
|
client_id = oauth2_query.get("client_id")[0]
|
|
original_redirect_uri = oauth2_query.get("redirect_uri")[0]
|
|
|
|
# If the client_id starts with https://home-assistant.io/
|
|
# we assume it's a mobile client
|
|
# Android = https://home-assistant.io/Android,
|
|
# iOS = https://home-assistant.io/iOS
|
|
is_mobile = client_id.startswith("https://home-assistant.io/")
|
|
|
|
# Check if we appear to be signing in to the web version,
|
|
# for which we want to store tokens.
|
|
# We don't want to set storeTokens on sign-in to Google for instance
|
|
base_url = get_url("/", self.force_https)
|
|
is_web_client = original_redirect_uri.startswith(base_url)
|
|
|
|
if is_web_client:
|
|
# Adjust the original_redirect_uri to include the storeTokens parameter
|
|
separator = "?"
|
|
if "?" in original_redirect_uri:
|
|
separator = "&"
|
|
|
|
original_redirect_uri = f"{original_redirect_uri}{separator}storeToken=true"
|
|
oauth2_query.update({"redirect_uri": original_redirect_uri})
|
|
|
|
# Create new redirect_uri with the updated query parameters
|
|
new_oauth2_url = oauth2_url._replace(
|
|
query=urlencode(oauth2_query, doseq=True)
|
|
)
|
|
redirect_uri = new_oauth2_url.geturl()
|
|
|
|
return redirect_uri, is_mobile
|
|
|
|
async def get(self, req: web.Request) -> web.Response:
|
|
"""Receive response."""
|
|
|
|
# Get the query parameter with the redirect_uri
|
|
redirect_uri = req.query.get("redirect_uri")
|
|
|
|
# Do some processing on the redirect_uri to correct it
|
|
# and determine if this is a mobile client.
|
|
if redirect_uri:
|
|
try:
|
|
redirect_uri, is_mobile = await self._process_url(redirect_uri)
|
|
except (
|
|
binascii.Error,
|
|
UnicodeDecodeError,
|
|
ValueError,
|
|
KeyError,
|
|
TypeError,
|
|
):
|
|
return await error_response(
|
|
"Invalid redirect_uri, please restart login."
|
|
)
|
|
|
|
else:
|
|
# Backwards compatibility with older versions that directly go to /auth/oidc/welcome
|
|
# If not set, redirect back to the main page and assume that this is a web client
|
|
redirect_uri = get_url("/?storeToken=true", self.force_https)
|
|
is_mobile = False
|
|
|
|
# Create OIDC state with the redirect_uri so we can use it later in the flow
|
|
state_id = await self.oidc_provider.async_create_state(redirect_uri)
|
|
cookie_header = self.oidc_provider.get_cookie_header(
|
|
state_id, secure=self.force_https or req.url.scheme == "https"
|
|
)
|
|
|
|
# If this is the only provider and we are on desktop,
|
|
# automatically go through the OIDC login
|
|
if not is_mobile and not self.has_other_auth_providers:
|
|
raise web.HTTPFound(
|
|
location=get_url("/auth/oidc/redirect", self.force_https),
|
|
headers=cookie_header,
|
|
)
|
|
|
|
# Otherwise display the screen with either mobile sign in or the buttons
|
|
# First generate code if mobile
|
|
code = None
|
|
if is_mobile:
|
|
# Create a code to login
|
|
code = await self.oidc_provider.async_generate_device_code(state_id)
|
|
if not code:
|
|
return await error_response(
|
|
"Failed to generate device code, please restart login.",
|
|
status=500,
|
|
)
|
|
|
|
# And add the other link if we have other auth providers
|
|
other_link = None
|
|
if self.has_other_auth_providers:
|
|
other_link = get_url("/?skip_oidc_redirect=true", self.force_https)
|
|
|
|
# And display
|
|
response = await template_response(
|
|
"welcome",
|
|
{
|
|
"name": self.name,
|
|
"other_link": other_link,
|
|
"code": code,
|
|
},
|
|
)
|
|
response.headers.update(cookie_header)
|
|
return response
|