Add google hangouts manual authentication option (#22158)

* Added option to use manual authentication for google hangout component
See: https://hangups.readthedocs.io/en/latest/user_guide.html#logging-in for manual log in example

Bumped up version of hangups to 0.4.9

* Updated components/hangouts/strings.json and generated translation string by running script/translations_develop
Reduced verbosity of modifications to components/hangouts/config_flow.py

* Added option to use manual authentication for google hangout component
See: https://hangups.readthedocs.io/en/latest/user_guide.html#logging-in for manual log in example

Bumped up version of hangups to 0.4.9

* Updated components/hangouts/strings.json and generated translation string by running script/translations_develop
Reduced verbosity of modifications to components/hangouts/config_flow.py

* fixing missing rebase

homeassistant/components/hangouts/.translations/en.json

@@ -18,6 +18,7 @@
             },
             "user": {
                 "data": {
+                    "authorization_code": "Authorization Code (required for manual authentication)",
                     "email": "E-Mail Address",
                     "password": "Password"
                 },

homeassistant/components/hangouts/__init__.py

@@ -19,7 +19,7 @@ from .const import (
     MESSAGE_SCHEMA, SERVICE_RECONNECT, SERVICE_SEND_MESSAGE, SERVICE_UPDATE,
     TARGETS_SCHEMA)
 
-REQUIREMENTS = ['hangups==0.4.6']
+REQUIREMENTS = ['hangups==0.4.9']
 
 _LOGGER = logging.getLogger(__name__)
 

homeassistant/components/hangouts/config_flow.py

@@ -1,11 +1,14 @@
 """Config flow to configure Google Hangouts."""
+import functools
 import voluptuous as vol
 
+
 from homeassistant import config_entries
 from homeassistant.const import CONF_EMAIL, CONF_PASSWORD
 from homeassistant.core import callback
 
-from .const import CONF_2FA, CONF_REFRESH_TOKEN, DOMAIN as HANGOUTS_DOMAIN
+from .const import CONF_2FA, CONF_REFRESH_TOKEN, CONF_AUTH_CODE, \
+    DOMAIN as HANGOUTS_DOMAIN
 
 
 @callback
@@ -41,13 +44,24 @@ class HangoutsFlowHandler(config_entries.ConfigFlow):
             from .hangups_utils import (HangoutsCredentials,
                                         HangoutsRefreshToken,
                                         GoogleAuthError, Google2FAError)
-            self._credentials = HangoutsCredentials(user_input[CONF_EMAIL],
-                                                    user_input[CONF_PASSWORD])
+            user_email = user_input[CONF_EMAIL]
+            user_password = user_input[CONF_PASSWORD]
+            user_auth_code = user_input.get(CONF_AUTH_CODE)
+            manual_login = user_auth_code is not None
+
+            user_pin = None
+            self._credentials = HangoutsCredentials(user_email,
+                                                    user_password,
+                                                    user_pin,
+                                                    user_auth_code)
             self._refresh_token = HangoutsRefreshToken(None)
             try:
-                await self.hass.async_add_executor_job(get_auth,
-                                                       self._credentials,
-                                                       self._refresh_token)
+                await self.hass.async_add_executor_job(
+                    functools.partial(get_auth,
+                                      self._credentials,
+                                      self._refresh_token,
+                                      manual_login=manual_login)
+                )
 
                 return await self.async_step_final()
             except GoogleAuthError as err:
@@ -63,7 +77,8 @@ class HangoutsFlowHandler(config_entries.ConfigFlow):
             step_id='user',
             data_schema=vol.Schema({
                 vol.Required(CONF_EMAIL): str,
-                vol.Required(CONF_PASSWORD): str
+                vol.Required(CONF_PASSWORD): str,
+                vol.Optional(CONF_AUTH_CODE): str
             }),
             errors=errors
         )

homeassistant/components/hangouts/const.py

@@ -13,6 +13,7 @@ _LOGGER = logging.getLogger('.')
 DOMAIN = 'hangouts'
 
 CONF_2FA = '2fa'
+CONF_AUTH_CODE = 'authorization_code'
 CONF_REFRESH_TOKEN = 'refresh_token'
 CONF_BOT = 'bot'
 

homeassistant/components/hangouts/hangups_utils.py

@@ -13,7 +13,7 @@ class HangoutsCredentials(CredentialsPrompt):
     This implementation gets the user data as params.
     """
 
-    def __init__(self, email, password, pin=None):
+    def __init__(self, email, password, pin=None, auth_code=None):
         """Google account credentials.
 
         :param email: Google account email address.
@@ -23,6 +23,7 @@ class HangoutsCredentials(CredentialsPrompt):
         self._email = email
         self._password = password
         self._pin = pin
+        self._auth_code = auth_code
 
     def get_email(self):
         """Return email.
@@ -54,6 +55,20 @@ class HangoutsCredentials(CredentialsPrompt):
         """
         self._pin = pin
 
+    def get_authorization_code(self):
+        """Return the oauth authorization code.
+
+        :return: Google oauth code.
+        """
+        return self._auth_code
+
+    def set_authorization_code(self, code):
+        """Set the google oauth authorization code.
+
+        :param code: Oauth code returned after authentication with google.
+        """
+        self._auth_code = code
+
 
 class HangoutsRefreshToken(RefreshTokenCache):
     """Memory-based cache for refresh token."""

homeassistant/components/hangouts/strings.json

@@ -13,7 +13,8 @@
             "user": {
                 "data": {
                     "email": "E-Mail Address",
-                    "password": "Password"
+                    "password": "Password",
+                    "authorization_code":  "Authorization Code (required for manual authentication)"
                 },
                 "title": "Google Hangouts Login"
             },

tests/components/hangouts/test_config_flow.py

@@ -19,6 +19,20 @@ async def test_flow_works(hass, aioclient_mock):
         assert result['title'] == 'test@test.com'
 
 
+async def test_flow_works_with_authcode(hass, aioclient_mock):
+    """Test config flow without 2fa."""
+    flow = config_flow.HangoutsFlowHandler()
+
+    flow.hass = hass
+
+    with patch('hangups.get_auth'):
+        result = await flow.async_step_user(
+            {'email': 'test@test.com', 'password': '1232456',
+             'authorization_code': 'c29tZXJhbmRvbXN0cmluZw=='})
+        assert result['type'] == data_entry_flow.RESULT_TYPE_CREATE_ENTRY
+        assert result['title'] == 'test@test.com'
+
+
 async def test_flow_works_with_2fa(hass, aioclient_mock):
     """Test config flow with 2fa."""
     from homeassistant.components.hangouts.hangups_utils import Google2FAError