from flask import Blueprint, session, flash, request, redirect, url_for, render_template from google.cloud import firestore from werkzeug.security import check_password_hash, generate_password_hash import urllib import datetime import logging from base64 import b64encode import requests import music.db.database as database blueprint = Blueprint('authapi', __name__) db = firestore.Client() logger = logging.getLogger(__name__) @blueprint.route('/login', methods=['GET', 'POST']) def login(): if request.method == 'POST': session.pop('username', None) username = request.form.get('username', None) password = request.form.get('password', None) if username is None or password is None: flash('malformed request') return redirect(url_for('index')) username = username.lower() user = database.get_user(username) if user is None: flash('user not found') return redirect(url_for('index')) if user.check_password(password): if user.locked: logger.warning(f'locked account attempt {username}') flash('account locked') return redirect(url_for('index')) user.last_login = datetime.datetime.utcnow() logger.info(f'success {username}') session['username'] = username return redirect(url_for('app_route')) else: logger.warning(f'failed attempt {username}') flash('incorrect password') return redirect(url_for('index')) else: return redirect(url_for('index')) @blueprint.route('/logout', methods=['GET', 'POST']) def logout(): if 'username' in session: logger.info(f'logged out {session["username"]}') session.pop('username', None) flash('logged out') return redirect(url_for('index')) @blueprint.route('/register', methods=['GET', 'POST']) def register(): if 'username' in session: return redirect(url_for('index')) if request.method == 'GET': return render_template('register.html') else: username = request.form.get('username', None) password = request.form.get('password', None) password_again = request.form.get('password_again', None) if username is None or password is None or password_again is None: flash('malformed request') return redirect('authapi.register') username = username.lower() if password != password_again: flash('password mismatch') return redirect('authapi.register') if username in [i.to_dict()['username'] for i in db.collection(u'spotify_users').where(u'username', u'==', username).stream()]: flash('username already registered') return redirect('authapi.register') database.create_user(username=username, password=password) logger.info(f'new user {username}') session['username'] = username return redirect(url_for('authapi.auth')) @blueprint.route('/spotify') def auth(): if 'username' in session: client_id = db.document('key/spotify').get().to_dict()['clientid'] params = urllib.parse.urlencode( { 'client_id': client_id, 'response_type': 'code', 'scope': 'playlist-modify-public playlist-modify-private playlist-read-private user-read-playback-state user-modify-playback-state user-library-read', 'redirect_uri': 'https://music.sarsoo.xyz/auth/spotify/token' } ) return redirect(urllib.parse.urlunparse(['https', 'accounts.spotify.com', 'authorize', '', params, ''])) return redirect(url_for('index')) @blueprint.route('/spotify/token') def token(): if 'username' in session: code = request.args.get('code', None) if code is None: flash('authorization failed') return redirect('app_route') else: app_credentials = db.document('key/spotify').get().to_dict() idsecret = b64encode(bytes(app_credentials['clientid'] + ':' + app_credentials['clientsecret'], "utf-8")).decode("ascii") headers = {'Authorization': 'Basic %s' % idsecret} data = { 'grant_type': 'authorization_code', 'code': code, 'redirect_uri': 'https://music.sarsoo.xyz/auth/spotify/token' } req = requests.post('https://accounts.spotify.com/api/token', data=data, headers=headers) if 200 <= req.status_code < 300: resp = req.json() user = database.get_user(session['username']) user.update_database({ 'access_token': resp['access_token'], 'refresh_token': resp['refresh_token'], 'last_refreshed': datetime.datetime.now(datetime.timezone.utc), 'token_expiry': resp['expires_in'], 'spotify_linked': True }) else: flash('http error on token request') return redirect('app_route') return redirect('/app/settings/spotify') return redirect(url_for('index')) @blueprint.route('/spotify/deauth') def deauth(): if 'username' in session: user = database.get_user(session['username']) user.update_database({ 'access_token': None, 'refresh_token': None, 'last_refreshed': datetime.datetime.now(datetime.timezone.utc), 'token_expiry': None, 'spotify_linked': False }) return redirect('/app/settings/spotify') return redirect(url_for('index'))