Allows the supervisor to send a session's user to addon with header X-Remote-User (#4152)

* Working draft for x-remote-user

* Renames prop to remote_user

* Allows to set in addon description whether it requests the username

* Fixes addon-options schema

* Sends user ID instead of username to addons

* Adds tests

* Removes configurability of remote-user forwarding

* Update const.py

* Also adds username header

* Fetches full user info object from homeassistant

* Cleaner validation and dataclasses

* Fixes linting

* Fixes linting

* Tries to fix test

* Updates tests

* Updates tests

* Updates tests

* Updates tests

* Updates tests

* Updates tests

* Updates tests

* Updates tests

* Resolves PR comments

* Linting

* Fixes tests

* Update const.py

* Removes header keys if not required

* Moves ignoring user ID headers if no session_data is given

* simplify

* fix lint with new job

---------

Co-authored-by: Pascal Vizeli <pvizeli@syshack.ch>
Co-authored-by: Pascal Vizeli <pascal.vizeli@syshack.ch>

tests/test_ingress.py

@@ -1,6 +1,7 @@
 """Test ingress."""
 from datetime import timedelta
 
+from supervisor.const import ATTR_SESSION_DATA_USER_ID
 from supervisor.utils.dt import utc_from_timestamp
 
 
@@ -20,6 +21,21 @@ def test_session_handling(coresys):
     assert not coresys.ingress.validate_session(session)
     assert not coresys.ingress.validate_session("invalid session")
 
+    session_data = coresys.ingress.get_session_data(session)
+    assert session_data is None
+
+
+def test_session_handling_with_session_data(coresys):
+    """Create and test session."""
+    session = coresys.ingress.create_session(
+        dict([(ATTR_SESSION_DATA_USER_ID, "some-id")])
+    )
+
+    assert session
+
+    session_data = coresys.ingress.get_session_data(session)
+    assert session_data[ATTR_SESSION_DATA_USER_ID] == "some-id"
+
 
 async def test_save_on_unload(coresys):
     """Test called save on unload."""