from pyramid import security

from pyramid.httpexceptions import HTTPSeeOther

import cubicweb

from pyramid_cubicweb.core import render_view

def login(request):

    repo = request.registry['cubicweb.repository']

    response = request.response

    user_eid = None

    if '__login' in request.params:

        login = request.params['__login']

        password = request.params['__password']

        try:

            with repo.internal_cnx() as cnx:

                user = repo.authenticate_user(cnx, login, password=password)

                user_eid = user.eid

        except cubicweb.AuthenticationError:

            raise

    if user_eid is not None:

        headers = security.remember(request, user_eid)

        raise HTTPSeeOther(

            request.params.get('postlogin_path', '/'),

            headers=headers)

        response.headerlist.extend(headers)

    response.text = render_view(request, 'login')

    return response

def includeme(config):

    config.add_route('login', '/login')

    config.add_view(login, route_name='login')