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from flask import Flask, render_template, request, redirect, url_for, session
from flask_mysqldb import MySQL
#
app = Flask(__name__)
app.config['MYSQL_HOST'] = 'mysql'
app.config['MYSQL_USER'] = 'root'
app.config['MYSQL_PASSWORD'] = 'password'
app.config['MYSQL_DB'] = 'login_demo'
mysql = MySQL(app)
#
@app.route('/')
def index():
if 'username' in session:
username = session['username']
return f'Logged in as {username} | <a href="/logout">Logout</a> | <a href="/dashboard">Dashboard</a>'
return 'You are not logged in | <a href="/login">Login</a>'
@app.route('/login', methods=['GET', 'POST'])
def login():
if request.method == 'POST':
username = request.form['username']
password = request.form['password']
cursor = mysql.connection.cursor()
cursor.execute('SELECT * FROM users WHERE username = %s AND password = %s', (username, password))
user = cursor.fetchone()
cursor.close()
if user:
session['username'] = username
return redirect(url_for('index'))
else:
return 'Login failed. Invalid username or password.'
return render_template('login.html')
@app.route('/dashboard')
def dashboard():
if 'username' in session:
return render_template('dashboard.html', username=session['username'])
return redirect(url_for('login'))
@app.route('/logout')
def logout():
session.pop('username', None)
return redirect(url_for('index'))
if __name__ == '__main__':
app.run(debug=True, host='0.0.0.0')
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