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import streamlit as st
import json
import os
import random
import string
if 'username' not in st.session_state:
st.session_state.username = ''
if 'scratch_pad' not in st.session_state:
st.session_state.scratch_pad = ''
history_file = 'user_history.json'
if not os.path.exists(history_file):
with open(history_file, 'w') as file:
json.dump({}, file)
with open(history_file, 'r') as file:
user_history = json.load(file)
def save_session(username, password):
st.session_state.username = username
st.session_state.scratch_pad = st.session_state.scratch_pad
user_history[username] = {
'password': password,
'scratch_pad': st.session_state.scratch_pad
}
with open(history_file, 'w') as file:
json.dump(user_history, file)
def register_user(username, password):
if username not in user_history:
save_session(username, password)
st.success("User registered successfully!")
else:
st.warning("Username already exists. Please choose a different username.")
def login_user(username, password):
if username in user_history:
stored_password = user_history[username]['password']
if password == stored_password:
st.session_state.username = username
st.session_state.scratch_pad = user_history[username]['scratch_pad']
st.success("Logged in successfully!")
return True
else:
st.error("Incorrect password. Please try again.")
else:
st.warning("Username not found. Please register first.")
return False
def reset_password(username):
if username in user_history:
new_password = ''.join(random.choices(string.ascii_letters + string.digits, k=8))
user_history[username]['password'] = new_password
with open(history_file, 'w') as file:
json.dump(user_history, file)
st.success(f"Password reset successful. Your new password is: {new_password}")
else:
st.warning("Username not found.")
st.title("Welcome to My App")
if st.session_state.username:
st.subheader(f"Welcome back, {st.session_state.username}!")
scratch_pad = st.text_area("Scratch Pad", value=st.session_state.scratch_pad, height=200)
if st.button("💾 Save"):
save_session(st.session_state.username, user_history[st.session_state.username]['password'])
if st.button("🔑 Reset Password"):
reset_password(st.session_state.username)
else:
username = st.text_input("Username:")
password = st.text_input("Password:", type="password")
col1, col2 = st.columns(2)
with col1:
if st.button("🔑 Login"):
if login_user(username, password):
st.experimental_rerun()
with col2:
if st.button("📝 Register"):
register_user(username, password) |