241 lines
9.6 KiB
Python
241 lines
9.6 KiB
Python
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from urllib.parse import urlencode, parse_qs
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import flask
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from flask import Blueprint, redirect, flash, current_app, session
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from flask.templating import render_template
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from flask_babel import gettext
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from flask.typing import ResponseReturnValue
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from flask import request, url_for, jsonify
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from flask_login import login_required, login_user, logout_user, current_user
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import logging
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from urllib.parse import urlparse
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from base64 import b64decode, b64encode
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import http
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import crypt
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from datetime import datetime
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import logging
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import json
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from ory_hydra_client.api.o_auth_2 import get_o_auth_2_consent_request, accept_o_auth_2_consent_request, accept_o_auth_2_login_request, get_o_auth_2_login_request, accept_o_auth_2_login_request, accept_o_auth_2_logout_request, get_o_auth_2_login_request
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from ory_hydra_client import models as ory_hydra_m
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from ory_hydra_client.models import TheRequestPayloadUsedToAcceptALoginOrConsentRequest, TheRequestPayloadUsedToAcceptAConsentRequest, GenericError
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from typing import Optional
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from uuid import uuid4
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from ..model import db, User, SecurityUser
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from ..form.auth import ConsentForm, LoginForm, RegistrationForm
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from ..auth_providers import AUTH_PROVIDER_LIST
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from ..hydra import hydra_service
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from ..wrapped_fido2_server import WrappedFido2Server
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logger = logging.getLogger(__name__)
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auth_views = Blueprint('auth', __name__, url_prefix='/auth')
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webauthn = WrappedFido2Server()
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@auth_views.route('/consent', methods=['GET', 'POST'])
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async def consent() -> ResponseReturnValue:
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"""Always grant consent."""
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# DUMMPY ONLY
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form = ConsentForm()
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remember_for = 60*60*24*30 # remember for 30 days
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#try:
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consent_request = await get_o_auth_2_consent_request.asyncio(consent_challenge=request.args['consent_challenge'],_client=hydra_service.hydra_client)
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if consent_request is None or isinstance( consent_request, ory_hydra_m.OAuth20RedirectBrowserTo):
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return redirect(url_for('frontend.index'))
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requested_scope = consent_request.requested_scope
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requested_audiences = consent_request.requested_access_token_audience
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if form.validate_on_submit() or consent_request.skip:
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user = User.query.get(consent_request.subject) # type: Optional[User]
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if user is None:
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return 'internal error', 500
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access_token = {
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'name': str(user.username),
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'preferred_username': str(user.username),
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'username': str(user.username),
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'email': str(user.email),
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'email_verified': True,
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#'given_name': str(user.username),
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#'family_name': '-',
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'groups': [group.name for group in user.groups]
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}
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id_token = {}
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if isinstance(requested_scope, list) and 'openid' in requested_scope:
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id_token = access_token
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body = TheRequestPayloadUsedToAcceptAConsentRequest(
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grant_scope= requested_scope,
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grant_access_token_audience= requested_audiences,
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remember= form.data['remember'],
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remember_for= remember_for,
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session= ory_hydra_m.PassSessionDataToAConsentRequest(
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access_token= access_token,
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id_token= id_token
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)
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)
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resp = await accept_o_auth_2_consent_request.asyncio(_client=hydra_service.hydra_client,
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json_body=body,
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consent_challenge=consent_request.challenge)
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if resp is None or isinstance( resp, GenericError):
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return 'internal error, could not forward request', 503
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return redirect(resp.redirect_to)
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return render_template(
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'auth/consent.html.j2',
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form=form,
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client=consent_request.client,
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requested_scope=requested_scope,
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requested_audiences=requested_audiences)
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@auth_views.route('/login', methods=['GET', 'POST'])
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async def login() -> ResponseReturnValue:
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login_challenge = request.args.get('login_challenge')
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if login_challenge is None:
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return 'login_challenge missing', 400
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login_request = await get_o_auth_2_login_request.asyncio(_client=hydra_service.hydra_client, login_challenge=login_challenge)
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if login_request is None or isinstance( login_request, ory_hydra_m.OAuth20RedirectBrowserTo):
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logger.exception("could not fetch login request")
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return redirect(url_for('frontend.index'))
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if login_request.skip:
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resp = await accept_o_auth_2_login_request.asyncio(_client=hydra_service.hydra_client,
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login_challenge=login_challenge,
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json_body=ory_hydra_m.HandledLoginRequestIsTheRequestPayloadUsedToAcceptALoginRequest(subject=login_request.subject))
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if resp is None or isinstance( resp, GenericError):
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return 'internal error, could not forward request', 503
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return redirect(resp.redirect_to)
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form = LoginForm()
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if form.validate_on_submit():
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user = User.query.filter_by(username=form.data['name']).first() # type: Optional[User]
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if user:
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session['username'] = str(user.username)
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else:
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session['user'] = None
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session['auth_providers'] = []
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return redirect(
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url_for('auth.login_auth', login_challenge=login_challenge))
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return render_template('auth/login.html.j2', form=form)
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@auth_views.route('/login/auth', methods=['GET', 'POST'])
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async def login_auth() -> ResponseReturnValue:
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login_challenge = request.args.get('login_challenge')
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if login_challenge is None:
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return 'missing login_challenge, bad request', 400
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login_request = await get_o_auth_2_login_request.asyncio(_client=hydra_service.hydra_client, login_challenge=login_challenge)
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if login_request is None:
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return redirect(url_for('frontend.index'))
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if 'username' not in session:
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return redirect(url_for('auth.login'))
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auth_forms = {}
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user = User.query.filter_by(username=session['username']).first_or_404()
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for auth_provider in AUTH_PROVIDER_LIST:
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form = auth_provider.get_form()
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if auth_provider.get_name() not in session['auth_providers'] and\
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auth_provider.check_auth(user, form):
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session['auth_providers'].append(auth_provider.get_name())
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session.modified = True
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if auth_provider.get_name() not in session['auth_providers']:
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auth_forms[auth_provider.get_name()]=form
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if len(session['auth_providers']) >= 1: # TODO should be to for TOTP working
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remember_me = True
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# if db_user is None:
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# db_user = User(username=session['username'])
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# db.session.add(db_user)
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# db.session.commit()
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subject = str(user.id)
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user.last_login = datetime.now()
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db.session.commit()
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resp = await accept_o_auth_2_login_request.asyncio(_client=hydra_service.hydra_client,
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login_challenge=login_challenge, json_body=ory_hydra_m.HandledLoginRequestIsTheRequestPayloadUsedToAcceptALoginRequest(
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subject=subject,
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remember=remember_me,
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))
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if resp is None or isinstance( resp, GenericError):
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return 'internal error, could not forward request', 503
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return redirect(resp.redirect_to)
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return render_template('auth/login_auth.html.j2', forms=auth_forms)
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@auth_views.route('/webauthn/pkcro', methods=['POST'])
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def webauthn_pkcro_route() -> ResponseReturnValue:
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"""login webauthn pkcro route"""
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return '', 404
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user = User.query.filter(User.id == session.get('webauthn_login_user_id')).one() #type: User
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form = ButtonForm()
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if user and form.validate_on_submit():
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pkcro, state = webauthn.authenticate_begin(webauthn_credentials(user))
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session['webauthn_login_state'] = state
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return Response(b64encode(cbor.encode(pkcro)).decode('utf-8'), mimetype='text/plain')
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return '', HTTPStatus.BAD_REQUEST
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@auth_views.route("/logout")
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async def logout() -> ResponseReturnValue:
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logout_challenge = request.args.get('logout_challenge')
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if logout_challenge is None:
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return 'invalid request, logout_challenge not set', 400
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# TODO confirm
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resp = await accept_o_auth_2_logout_request.asyncio(_client=hydra_service.hydra_client, logout_challenge=logout_challenge)
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if resp is None or isinstance( resp, GenericError):
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return 'internal error, could not forward request', 503
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return redirect(resp.redirect_to)
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@auth_views.route("/error", methods=["GET"])
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def auth_error() -> ResponseReturnValue:
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error = request.args.get('error')
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error_description = request.args.get('error_description')
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return render_template('auth/error.html.j2', error=error, error_description=error_description)
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@auth_views.route("/sign_up", methods=["GET"])
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def sign_up():
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form = RegistrationForm()
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return render_template('auth/sign_up.html.j2', form=form)
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@auth_views.route("/sign_up", methods=["POST"])
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def sign_up_submit():
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form = RegistrationForm()
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if form.validate_on_submit():
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user = User()
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user.id = uuid4()
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user.username = form.data['username']
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user.password_hashed = crypt.crypt(form.data['password'])
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user.alternative_email = form.data['alternative_email']
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db.session.add(user)
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db.session.commit()
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return jsonify({})
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return jsonify({
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'status': 'error',
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'errors': form.errors
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})
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@auth_views.route("/oob", methods=["GET"])
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def oob_token():
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token_info = {
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'code': request.args.get('code', default="", type=str),
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'scope': request.args.get('scope', default="", type=str),
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'state': request.args.get('state', default="", type=str),
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}
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return render_template('auth/oob.html.j2', token_info=token_info)
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