43 lines
1.3 KiB
Python
43 lines
1.3 KiB
Python
from typing import Iterator, Mapping, NoReturn, Optional
|
|
|
|
from streamlit.errors import StreamlitAPIException
|
|
from streamlit.runtime.scriptrunner import get_script_run_ctx as _get_script_run_ctx
|
|
from streamlit.runtime.scriptrunner.script_run_context import UserInfo
|
|
|
|
|
|
def _get_user_info() -> UserInfo:
|
|
ctx = _get_script_run_ctx()
|
|
if ctx is None:
|
|
# TODO: Add appropriate warnings when ctx is missing
|
|
return {}
|
|
return ctx.user_info
|
|
|
|
|
|
class UserInfoProxy(Mapping[str, Optional[str]]):
|
|
"""
|
|
A dict like proxy object for accessing information about current user.
|
|
"""
|
|
|
|
def __getitem__(self, key: str) -> Optional[str]:
|
|
return _get_user_info()[key]
|
|
|
|
def __getattr__(self, key: str) -> Optional[str]:
|
|
try:
|
|
return _get_user_info()[key]
|
|
except KeyError:
|
|
raise AttributeError
|
|
|
|
def __setattr__(self, name: str, value: Optional[str]) -> NoReturn:
|
|
raise StreamlitAPIException("st.experimental_user cannot be modified")
|
|
|
|
def __setitem__(self, name: str, value: Optional[str]) -> NoReturn:
|
|
raise StreamlitAPIException("st.experimental_user cannot be modified")
|
|
|
|
def __iter__(self) -> Iterator[str]:
|
|
return iter(_get_user_info())
|
|
|
|
def __len__(self) -> int:
|
|
return len(_get_user_info())
|
|
|
|
def to_dict(self) -> UserInfo:
|
|
return _get_user_info()
|