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| from typing import Optional | |
| from os import getenv, environ | |
| try: | |
| import streamlit as st | |
| except ImportError: | |
| raise ImportError("`streamlit` library not installed. Please install using `pip install streamlit`") | |
| def get_username_sidebar() -> Optional[str]: | |
| """Sidebar component to get username""" | |
| # Get username from user if not in session state | |
| if "username" not in st.session_state: | |
| username_input_container = st.sidebar.empty() | |
| username = username_input_container.text_input(":technologist: Enter username") | |
| if username != "": | |
| st.session_state["username"] = username | |
| username_input_container.empty() | |
| # Get username from session state | |
| username = st.session_state.get("username") # type: ignore | |
| return username | |
| def reload_button_sidebar(text: str = "Reload Session", **kwargs) -> None: | |
| """Sidebar component to show reload button""" | |
| if st.sidebar.button(text, **kwargs): | |
| st.session_state.clear() | |
| st.rerun() | |
| def check_password(password_env_var: str = "APP_PASSWORD") -> bool: | |
| """Component to check if a password entered by the user is correct. | |
| To use this component, set the environment variable `APP_PASSWORD`. | |
| Args: | |
| password_env_var (str, optional): The environment variable to use for the password. Defaults to "APP_PASSWORD". | |
| Returns: | |
| bool: `True` if the user had the correct password. | |
| """ | |
| app_password = getenv(password_env_var) | |
| if app_password is None: | |
| return True | |
| def check_first_run_password(): | |
| """Checks whether a password entered on the first run is correct.""" | |
| if "first_run_password" in st.session_state: | |
| password_to_check = st.session_state["first_run_password"] | |
| if password_to_check == app_password: | |
| st.session_state["password_correct"] = True | |
| # don't store password | |
| del st.session_state["first_run_password"] | |
| else: | |
| st.session_state["password_correct"] = False | |
| def check_updated_password(): | |
| """Checks whether an updated password is correct.""" | |
| if "updated_password" in st.session_state: | |
| password_to_check = st.session_state["updated_password"] | |
| if password_to_check == app_password: | |
| st.session_state["password_correct"] = True | |
| # don't store password | |
| del st.session_state["updated_password"] | |
| else: | |
| st.session_state["password_correct"] = False | |
| # First run, show input for password. | |
| if "password_correct" not in st.session_state: | |
| st.text_input( | |
| "Password", | |
| type="password", | |
| on_change=check_first_run_password, | |
| key="first_run_password", | |
| ) | |
| return False | |
| # Password incorrect, show input for updated password + error. | |
| elif not st.session_state["password_correct"]: | |
| st.text_input( | |
| "Password", | |
| type="password", | |
| on_change=check_updated_password, | |
| key="updated_password", | |
| ) | |
| st.error("😕 Password incorrect") | |
| return False | |
| # Password correct. | |
| else: | |
| return True | |
| def get_openai_key_sidebar() -> Optional[str]: | |
| """Sidebar component to get OpenAI API key""" | |
| # Get OpenAI API key from environment variable | |
| openai_key: Optional[str] = getenv("OPENAI_API_KEY") | |
| # If not found, get it from user input | |
| if openai_key is None or openai_key == "" or openai_key == "sk-***": | |
| api_key = st.sidebar.text_input("OpenAI API key", placeholder="sk-***", key="api_key") | |
| if api_key != "sk-***" or api_key != "" or api_key is not None: | |
| openai_key = api_key | |
| # Store it in session state and environment variable | |
| if openai_key is not None and openai_key != "": | |
| st.session_state["OPENAI_API_KEY"] = openai_key | |
| environ["OPENAI_API_KEY"] = openai_key | |
| return openai_key | |