Source code for openstack_auth.forms

# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
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#
#    http://www.apache.org/licenses/LICENSE-2.0
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import collections
import logging

from django.conf import settings
from django.contrib.auth import authenticate  # noqa
from django.contrib.auth import forms as django_auth_forms
from django import forms
from django.utils.translation import ugettext_lazy as _
from django.views.decorators.debug import sensitive_variables  # noqa

from openstack_auth import exceptions
from openstack_auth import utils


LOG = logging.getLogger(__name__)


[docs]class Login(django_auth_forms.AuthenticationForm): """Form used for logging in a user. Handles authentication with Keystone by providing the domain name, username and password. A scoped token is fetched after successful authentication. A domain name is required if authenticating with Keystone V3 running multi-domain configuration. If the user authenticated has a default project set, the token will be automatically scoped to their default project. If the user authenticated has no default project set, the authentication backend will try to scope to the projects returned from the user's assigned projects. The first successful project scoped will be returned. Inherits from the base ``django.contrib.auth.forms.AuthenticationForm`` class for added security features. """ region = forms.ChoiceField(label=_("Region"), required=False) username = forms.CharField( label=_("User Name"), widget=forms.TextInput(attrs={"autofocus": "autofocus"})) password = forms.CharField(label=_("Password"), widget=forms.PasswordInput(render_value=False)) def __init__(self, *args, **kwargs): super(Login, self).__init__(*args, **kwargs) fields_ordering = ['username', 'password', 'region'] if getattr(settings, 'OPENSTACK_KEYSTONE_MULTIDOMAIN_SUPPORT', False): last_domain = self.request.COOKIES.get('login_domain', None) self.fields['domain'] = forms.CharField( initial=last_domain, label=_("Domain"), required=True, widget=forms.TextInput(attrs={"autofocus": "autofocus"})) self.fields['username'].widget = forms.widgets.TextInput() fields_ordering = ['domain', 'username', 'password', 'region'] self.fields['region'].choices = self.get_region_choices() if len(self.fields['region'].choices) == 1: self.fields['region'].initial = self.fields['region'].choices[0][0] self.fields['region'].widget = forms.widgets.HiddenInput() elif len(self.fields['region'].choices) > 1: self.fields['region'].initial = self.request.COOKIES.get( 'login_region') # if websso is enabled and keystone version supported # prepend the websso_choices select input to the form if utils.is_websso_enabled(): initial = getattr(settings, 'WEBSSO_INITIAL_CHOICE', 'credentials') self.fields['auth_type'] = forms.ChoiceField( label=_("Authenticate using"), choices=getattr(settings, 'WEBSSO_CHOICES', ()), required=False, initial=initial) # add auth_type to the top of the list fields_ordering.insert(0, 'auth_type') # websso is enabled, but keystone version is not supported elif getattr(settings, 'WEBSSO_ENABLED', False): msg = ("Websso is enabled but horizon is not configured to work " + "with keystone version 3 or above.") LOG.warning(msg) self.fields = collections.OrderedDict( (key, self.fields[key]) for key in fields_ordering) @staticmethod def get_region_choices(): default_region = (settings.OPENSTACK_KEYSTONE_URL, "Default Region") regions = getattr(settings, 'AVAILABLE_REGIONS', []) if not regions: regions = [default_region] return regions @sensitive_variables() def clean(self): default_domain = getattr(settings, 'OPENSTACK_KEYSTONE_DEFAULT_DOMAIN', 'Default') username = self.cleaned_data.get('username') password = self.cleaned_data.get('password') region = self.cleaned_data.get('region') domain = self.cleaned_data.get('domain', default_domain) if not (username and password): # Don't authenticate, just let the other validators handle it. return self.cleaned_data try: self.user_cache = authenticate(request=self.request, username=username, password=password, user_domain_name=domain, auth_url=region) msg = 'Login successful for user "%(username)s".' % \ {'username': username} LOG.info(msg) except exceptions.KeystoneAuthException as exc: msg = 'Login failed for user "%(username)s".' % \ {'username': username} LOG.warning(msg) raise forms.ValidationError(exc) if hasattr(self, 'check_for_test_cookie'): # Dropped in django 1.7 self.check_for_test_cookie() return self.cleaned_data