contentmatcher/auth.py

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import functools
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from pickle import NONE
from shutil import ExecError
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from flask import (
Blueprint, flash, g, redirect, render_template, request, session, url_for
)
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from sqlalchemy import create_engine
from sqlalchemy.orm import sessionmaker
from hashlib import md5
from config import CONFIG
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from create_db import User
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bp = Blueprint('auth', __name__, url_prefix='/auth')
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engine = create_engine(CONFIG['DB_CONNECTION'])
dbsessionmaker = sessionmaker(bind=engine)
dbsession = dbsessionmaker()
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@bp.route('/register', methods=('GET', 'POST'))
def register():
if request.method == 'POST':
username = request.form['username']
password = request.form['password']
error = None
if not username:
error = 'Username is required.'
elif not password:
error = 'Password is required.'
if error is None:
try:
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user = User(username=username, password=md5(password.encode("utf-8")).hexdigest())
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dbsession.add(user)
dbsession.commit()
except Exception as e:
error = f"napaka pri registraciji {username} je {e}"
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else:
return redirect(url_for("auth.login"))
flash(error)
return render_template('auth/register.html')
@bp.route('/login', methods=('GET', 'POST'))
def login():
if request.method == 'POST':
username = request.form['username']
password = request.form['password']
error = None
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user = dbsession.query(User).filter(User.username == username).first()
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if user is None:
error = 'Incorrect username.'
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elif not user.password == md5(password.encode("utf-8")).hexdigest(): #compare input pw has and bd pw hash
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error = 'Incorrect password.'
if error is None:
session.clear()
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session['user_id'] = user.id
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return redirect(url_for('index'))
flash(error)
return render_template('auth/login.html')
@bp.before_app_request
def load_logged_in_user():
user_id = session.get('user_id')
if user_id is None:
g.user = None
else:
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g.user = None
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@bp.route('/logout')
def logout():
session.clear()
return redirect(url_for('index'))
def login_required(view):
@functools.wraps(view)
def wrapped_view(**kwargs):
if g.user is None:
return redirect(url_for('auth.login'))
return view(**kwargs)
return wrapped_view