app\auth\views(3).py

#...
from flask import request, redirect, render_template, url_for, flash
from flask_login import login_user, logout_user, login_required, current_user
from .forms import LoginForm, RegistrationForm

@auth.before_app_request
def before_request():
    if current_user.is_authenticated:
        current_user.ping()
        if not current_user.confirmed \
                and request.endpoint \
                and request.blueprint != 'auth' \
                and request.endpoint != 'static':
            return redirect(url_for('auth.unconfirmed'))

@auth.route('/unconfirmed')
def unconfirmed():
    if current_user.is_anonymous or current_user.confirmed:
        return redirect(url_for('main.index'))
    return render_template('auth/unconfirmed.html')

@auth.route(‘/login’, methods=[‘GET’, ‘POST’])
def login():
    form = LoginForm()
    if form.validate_on_submit():
        user = User.query.filter_by(email=form.email.data.lower())
    if user is not None and user.verify_password(form.password.data):
         login_user(user, form.remember_me.data)
         next = request.args.get('next')
         if next is None or not next.startswith('/'):
             next = url_for('main.index')
         return redirect(next)
    flash('Invalid email or password.')
    return render_template('auth/login.html', form=form)

@auth.route(‘/logout’)
@login_required
def logout():
	logout_user()
	flash(‘You have been logged out.’)
	return redirect(url_for(‘main.index’)
#...