Update app.py

app.py

@@ -2,55 +2,31 @@ import streamlit as st
 import transformers
 import altair as alt
 import pandas as pd
-import streamlit_authenticator as stauth
-import bcrypt
 from difflib import SequenceMatcher
 
 # ------------------------------
-# User Authentication Setup
+# Simple Authentication Setup
 # ------------------------------
+# Define a simple password for demonstration purposes.
+PASSWORD = "password123"
+
+# Initialize authentication state
+if 'authenticated' not in st.session_state:
+    st.session_state['authenticated'] = False
+
+# Simple password input in the sidebar for authentication
+if not st.session_state['authenticated']:
+    st.sidebar.title("Login")
+    password_input = st.sidebar.text_input("Enter password:", type="password")
+    if st.sidebar.button("Login"):
+        if password_input == PASSWORD:
+            st.session_state['authenticated'] = True
+            st.sidebar.success("Authenticated!")
+        else:
+            st.sidebar.error("Incorrect password. Please try again.")
+    st.stop()  # Stop app execution until authenticated
 
-# Manually hash the password using bcrypt
-plain_password = "password123"
-hashed_password = bcrypt.hashpw(plain_password.encode('utf-8'), bcrypt.gensalt()).decode('utf-8')
-
-# Configuration for authentication
-config = {
-    'credentials': {
-        'usernames': {
-            'demo_user': {
-                'name': 'Demo User',
-                'password': hashed_password  # use the manually hashed password
-            }
-        }
-    },
-    'cookie': {
-        'expiry_days': 30,
-        'key': 'some_signature_key',
-        'name': 'some_cookie_name'
-    },
-    'preauthorized': {
-        'emails': []
-    }
-}
-
-authenticator = stauth.Authenticate(
-    config['credentials'],
-    config['cookie']['name'],
-    config['cookie']['key'],
-    config['cookie']['expiry_days']
-)
-
-# Use 'sidebar' as the location parameter for authentication
-name, authentication_status, username = authenticator.login('Login', 'sidebar')
-
-if not authentication_status:
-    st.error('Authentication failed. Please refresh and try again.')
-    st.stop()
-
-st.sidebar.write(f"Welcome *{name}*")
-authenticator.logout('Logout', 'sidebar')
-
+st.sidebar.write("Welcome!")
 # ------------------------------
 # Load Models
 # ------------------------------
@@ -132,7 +108,6 @@ with tabs[1]:
             answer = answer_question(summary_context, question)
             st.subheader("Answer")
             st.write(answer)
-            # For session saving, one could store Q&A pairs in st.session_state or a database.
         else:
             st.warning("Please provide both a summary context and a question.")
 
@@ -158,7 +133,6 @@ with tabs[2]:
     st.subheader("Data Extraction Placeholder")
     st.markdown("Implement NLP techniques or model prompts to extract structured data here.")
 
-    # File uploader example for future data extraction features
     uploaded_file = st.file_uploader("Upload a document file for extraction", type=["pdf", "docx", "txt"])
     if uploaded_file is not None:
         st.info("File uploaded successfully. Data extraction logic would process this file.")
@@ -175,5 +149,5 @@ st.sidebar.info(
 )
 
 # ------------------------------
-# End of Applications
+# End of Application
 # ------------------------------