lenticular_cloud2/lenticular_cloud/views/auth.py

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from urllib.parse import urlencode, parse_qs
import flask
from flask import Blueprint, redirect
from flask import current_app, session
from flask.templating import render_template
from flask_babel import gettext
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from flask import request, url_for
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from flask_login import login_required, login_user, logout_user
import logging
from urllib.parse import urlparse
from base64 import b64decode, b64encode
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import http
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from ..model import User, SecurityUser
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from ..model_db import db, User as DbUser
from ..form.auth import ConsentForm, LoginForm
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from ..auth_providers import AUTH_PROVIDER_LIST
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auth_views = Blueprint('auth', __name__, url_prefix='/auth')
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@auth_views.route('/consent', methods=['GET', 'POST'])
def consent():
"""Always grant consent."""
# DUMMPY ONLY
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form = ConsentForm()
remember_for = 60*60*24*7 # remember for 7 days
consent_request = current_app.hydra_api.get_consent_request(
request.args['consent_challenge'])
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requested_scope = consent_request.requested_scope
requested_audiences = consent_request.requested_access_token_audience
if form.validate_on_submit() or consent_request.skip:
resp = current_app.hydra_api.accept_consent_request(
consent_request.challenge, body={
'grant_scope': requested_scope,
'grant_access_token_audience': requested_audiences,
'remember': form.data['remember'],
# 'remember_for': remember_for,
})
return redirect(resp.redirect_to)
return render_template(
'auth/consent.html.j2',
form=form,
client=consent_request.client,
requested_scope=requested_scope,
requested_audiences=requested_audiences)
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@auth_views.route('/login', methods=['GET', 'POST'])
def login():
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login_challenge = request.args.get('login_challenge')
login_request = current_app.hydra_api.get_login_request(login_challenge)
if login_request.skip:
resp = current_app.hydra_api.accept_login_request(
login_challenge,
body={'subject': login_request.subject})
return redirect(resp.redirect_to)
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form = LoginForm()
if form.validate_on_submit():
user = User.query().by_username(form.data['name'])
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if user:
session['username'] = str(user.username)
else:
session['user'] = None
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session['auth_providers'] = []
return redirect(
url_for('auth.login_auth', login_challenge=login_challenge))
return render_template('auth/login.html.j2', form=form)
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@auth_views.route('/login/auth', methods=['GET', 'POST'])
def login_auth():
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login_challenge = request.args.get('login_challenge')
login_request = current_app.hydra_api.get_login_request(login_challenge)
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if 'username' not in session:
return redirect(url_for('auth.login'))
auth_forms = {}
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user = User.query().by_username(session['username'])
for auth_provider in AUTH_PROVIDER_LIST:
form = auth_provider.get_form()
if auth_provider.get_name() not in session['auth_providers'] and\
auth_provider.check_auth(user, form):
session['auth_providers'].append(auth_provider.get_name())
if auth_provider.get_name() not in session['auth_providers']:
auth_forms[auth_provider.get_name()]=form
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if len(session['auth_providers']) >= 2:
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remember_me = True
db_user = DbUser.query.filter(DbUser.username == session['username']).one_or_none()
if db_user is None:
db_user = DbUser(username=session['username'])
db.session.add(db_user)
db.session.commit()
subject = db_user.id
resp = current_app.hydra_api.accept_login_request(
login_challenge, body={
'subject': subject,
'remember': remember_me})
return redirect(resp.redirect_to)
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login_user(SecurityUser(session['username']))
# TODO use this var
_next = None
try:
_next_url = urlparse(b64decode(request.args.get('next')).decode())
_host_url = urlparse(request.url)
if _next_url.scheme == _host_url.scheme and _next_url.netloc == _host_url.netloc :
_next = _next_url.geturl()
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except TypeError:
_next = None
return redirect(_next or url_for('frontend.index'))
return render_template('auth/login_auth.html.j2', forms=auth_forms)
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@auth_views.route("/logout")
def logout():
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logout_challenge = request.args.get('logout_challenge')
logout_request = current_app.hydra_api.get_logout_request(logout_challenge)
resp = current_app.hydra_api.accept_logout_request(logout_challenge)
logout_user()
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return redirect(resp.redirect_to)
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