Hassio auth (#17274)

* Create auth.py

* Update auth.py

* Update auth.py

* Update __init__.py

* Update auth.py

* Update auth.py

* Update auth.py

* Update auth.py

* Update auth.py

* Update auth.py

* Update auth.py

* Update auth.py

* Update auth.py

* Add tests

* Update test_auth.py

* Update auth.py

* Update test_auth.py

* Update auth.py

homeassistant/components/hassio/__init__.py

@@ -19,6 +19,7 @@ import homeassistant.helpers.config_validation as cv
 from homeassistant.loader import bind_hass
 from homeassistant.util.dt import utcnow
 
+from .auth import async_setup_auth
 from .handler import HassIO, HassioAPIError
 from .discovery import async_setup_discovery
 from .http import HassIOView
@@ -280,4 +281,7 @@ async def async_setup(hass, config):
     # Init discovery Hass.io feature
     async_setup_discovery(hass, hassio, config)
 
+    # Init auth Hass.io feature
+    async_setup_auth(hass)
+
     return True

homeassistant/components/hassio/auth.py

@@ -0,0 +1,75 @@
+"""Implement the auth feature from Hass.io for Add-ons."""
+import logging
+from ipaddress import ip_address
+import os
+
+from aiohttp import web
+from aiohttp.web_exceptions import (
+    HTTPForbidden, HTTPNotFound, HTTPUnauthorized)
+import voluptuous as vol
+
+from homeassistant.core import callback
+import homeassistant.helpers.config_validation as cv
+from homeassistant.exceptions import HomeAssistantError
+from homeassistant.components.http import HomeAssistantView
+from homeassistant.components.http.const import KEY_REAL_IP
+from homeassistant.components.http.data_validator import RequestDataValidator
+
+_LOGGER = logging.getLogger(__name__)
+
+ATTR_USERNAME = 'username'
+ATTR_PASSWORD = 'password'
+
+
+SCHEMA_API_AUTH = vol.Schema({
+    vol.Required(ATTR_USERNAME): cv.string,
+    vol.Required(ATTR_PASSWORD): cv.string,
+})
+
+
+@callback
+def async_setup_auth(hass):
+    """Auth setup."""
+    hassio_auth = HassIOAuth(hass)
+    hass.http.register_view(hassio_auth)
+
+
+class HassIOAuth(HomeAssistantView):
+    """Hass.io view to handle base part."""
+
+    name = "api:hassio_auth"
+    url = "/api/hassio_auth"
+
+    def __init__(self, hass):
+        """Initialize WebView."""
+        self.hass = hass
+
+    @RequestDataValidator(SCHEMA_API_AUTH)
+    async def post(self, request, data):
+        """Handle new discovery requests."""
+        hassio_ip = os.environ['HASSIO'].split(':')[0]
+        if request[KEY_REAL_IP] != ip_address(hassio_ip):
+            _LOGGER.error(
+                "Invalid auth request from %s", request[KEY_REAL_IP])
+            raise HTTPForbidden()
+
+        await self._check_login(data[ATTR_USERNAME], data[ATTR_PASSWORD])
+        return web.Response(status=200)
+
+    def _get_provider(self):
+        """Return Homeassistant auth provider."""
+        for prv in self.hass.auth.auth_providers:
+            if prv.type == 'homeassistant':
+                return prv
+
+        _LOGGER.error("Can't find Home Assistant auth.")
+        raise HTTPNotFound()
+
+    async def _check_login(self, username, password):
+        """Check User credentials."""
+        provider = self._get_provider()
+
+        try:
+            await provider.async_validate_login(username, password)
+        except HomeAssistantError:
+            raise HTTPUnauthorized() from None

tests/components/hassio/test_auth.py

@@ -0,0 +1,95 @@
+"""The tests for the hassio component."""
+from unittest.mock import patch, Mock
+
+from homeassistant.const import HTTP_HEADER_HA_AUTH
+from homeassistant.exceptions import HomeAssistantError
+
+from tests.common import mock_coro, register_auth_provider
+from . import API_PASSWORD
+
+
+async def test_login_success(hass, hassio_client):
+    """Test no auth needed for ."""
+    await register_auth_provider(hass, {'type': 'homeassistant'})
+
+    with patch('homeassistant.auth.providers.homeassistant.'
+               'HassAuthProvider.async_validate_login',
+               Mock(return_value=mock_coro())) as mock_login:
+        resp = await hassio_client.post(
+            '/api/hassio_auth',
+            json={
+                "username": "test",
+                "password": "123456"
+            },
+            headers={
+                HTTP_HEADER_HA_AUTH: API_PASSWORD
+            }
+        )
+
+        # Check we got right response
+        assert resp.status == 200
+        mock_login.assert_called_with("test", "123456")
+
+
+async def test_login_error(hass, hassio_client):
+    """Test no auth needed for error."""
+    await register_auth_provider(hass, {'type': 'homeassistant'})
+
+    with patch('homeassistant.auth.providers.homeassistant.'
+               'HassAuthProvider.async_validate_login',
+               Mock(side_effect=HomeAssistantError())) as mock_login:
+        resp = await hassio_client.post(
+            '/api/hassio_auth',
+            json={
+                "username": "test",
+                "password": "123456"
+            },
+            headers={
+                HTTP_HEADER_HA_AUTH: API_PASSWORD
+            }
+        )
+
+        # Check we got right response
+        assert resp.status == 401
+        mock_login.assert_called_with("test", "123456")
+
+
+async def test_login_no_data(hass, hassio_client):
+    """Test auth with no data -> error."""
+    await register_auth_provider(hass, {'type': 'homeassistant'})
+
+    with patch('homeassistant.auth.providers.homeassistant.'
+               'HassAuthProvider.async_validate_login',
+               Mock(side_effect=HomeAssistantError())) as mock_login:
+        resp = await hassio_client.post(
+            '/api/hassio_auth',
+            headers={
+                HTTP_HEADER_HA_AUTH: API_PASSWORD
+            }
+        )
+
+        # Check we got right response
+        assert resp.status == 400
+        assert not mock_login.called
+
+
+async def test_login_no_username(hass, hassio_client):
+    """Test auth with no username in data -> error."""
+    await register_auth_provider(hass, {'type': 'homeassistant'})
+
+    with patch('homeassistant.auth.providers.homeassistant.'
+               'HassAuthProvider.async_validate_login',
+               Mock(side_effect=HomeAssistantError())) as mock_login:
+        resp = await hassio_client.post(
+            '/api/hassio_auth',
+            json={
+                "password": "123456"
+            },
+            headers={
+                HTTP_HEADER_HA_AUTH: API_PASSWORD
+            }
+        )
+
+        # Check we got right response
+        assert resp.status == 400
+        assert not mock_login.called