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django-cas-server
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By session logout

This commit is contained in:
Valentin Samir 2015-06-09 22:04:05 +02:00
parent 41fcc06200
commit 245086f6ef
7 changed files with 111 additions and 22 deletions
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10
cas_server/forms.py
View File

@ -22,22 +22,24 @@ class UserCredential(forms.Form):
username = forms.CharField(label=_('login'))
service = forms.CharField(widget=forms.HiddenInput(), required=False)
password = forms.CharField(label=_('password'), widget=forms.PasswordInput)
lt = forms.CharField(widget=forms.HiddenInput())
lt = forms.CharField(widget=forms.HiddenInput(), required=False)
method = forms.CharField(widget=forms.HiddenInput(), required=False)
warn = forms.BooleanField(label=_('warn'), required=False)
def __init__(self, *args, **kwargs):
def __init__(self, request, *args, **kwargs):
self.request = request
super(UserCredential, self).__init__(*args, **kwargs)
def clean(self):
cleaned_data = super(UserCredential, self).clean()
auth = utils.import_attr(settings.CAS_AUTH_CLASS)(cleaned_data.get("username"))
if auth.test_password(cleaned_data.get("password")):
session = utils.get_session(self.request)
try:
user = models.User.objects.get(username=auth.username)
user = models.User.objects.get(username=auth.username, session=session)
user.save()
except models.User.DoesNotExist:
user = models.User.objects.create(username=auth.username)
user = models.User.objects.create(username=auth.username, session=session)
user.save()
else:
raise forms.ValidationError(_(u"Bad user"))

3
cas_server/management/commands/cas_clean_tickets.py
View File

@ -8,5 +8,6 @@ class Command(BaseCommand):
help = _(u"Clean old trickets")
def handle(self, *args, **options):
models.User.clean_old_entries()
for ticket_class in [models.ServiceTicket, models.ProxyTicket, models.ProxyGrantingTicket]:
ticket_class.clean()
ticket_class.clean_old_entries()

31
cas_server/migrations/0019_auto_20150609_1903.py Normal file
View File

@ -0,0 +1,31 @@
# -*- coding: utf-8 -*-
from __future__ import unicode_literals
from django.db import models, migrations
class Migration(migrations.Migration):
dependencies = [
('sessions', '0001_initial'),
('cas_server', '0018_auto_20150608_1621'),
]
operations = [
migrations.AddField(
model_name='user',
name='session',
field=models.OneToOneField(related_name='cas_server_user', null=True, blank=True, to='sessions.Session'),
preserve_default=True,
),
migrations.AlterField(
model_name='user',
name='username',
field=models.CharField(max_length=30),
preserve_default=True,
),
migrations.AlterUniqueTogether(
name='user',
unique_together=set([('username', 'session')]),
),
]

21
cas_server/migrations/0020_auto_20150609_1917.py Normal file
View File

@ -0,0 +1,21 @@
# -*- coding: utf-8 -*-
from __future__ import unicode_literals
from django.db import models, migrations
import django.db.models.deletion
class Migration(migrations.Migration):
dependencies = [
('cas_server', '0019_auto_20150609_1903'),
]
operations = [
migrations.AlterField(
model_name='user',
name='session',
field=models.OneToOneField(related_name='cas_server_user', null=True, on_delete=django.db.models.deletion.SET_NULL, blank=True, to='sessions.Session'),
preserve_default=True,
),
]

35
cas_server/models.py
View File

@ -17,6 +17,7 @@ from django.db.models import Q
from django.contrib import messages
from django.utils.translation import ugettext_lazy as _
from django.utils import timezone
from django.contrib.sessions.models import Session
from picklefield.fields import PickledObjectField
import re
@ -30,18 +31,31 @@ import utils
class User(models.Model):
"""A user logged into the CAS"""
username = models.CharField(max_length=30, unique=True)
class Meta:
unique_together = ("username", "session")
session = models.OneToOneField(Session, related_name="cas_server_user", blank=True, null=True, on_delete=models.SET_NULL)
username = models.CharField(max_length=30)
date = models.DateTimeField(auto_now_add=True, auto_now=True)
@classmethod
def clean_old_entries(cls):
users = cls.objects.filter(session=None)
for user in users:
user.logout()
users.delete()
@property
def attributs(self):
"""return a fresh dict for the user attributs"""
return utils.import_attr(settings.CAS_AUTH_CLASS)(self.username).attributs()
def __unicode__(self):
return self.username
if self.session:
return u"%s - %s" % (self.username, self.session.session_key)
else:
return self.username
def logout(self, request):
def logout(self, request=None):
"""Sending SLO request to all services the user logged in"""
async_list = []
session = FuturesSession(executor=ThreadPoolExecutor(max_workers=10))
@ -59,12 +73,13 @@ class User(models.Model):
try:
future.result()
except Exception as error:
error = utils.unpack_nested_exception(error)
messages.add_message(
request,
messages.WARNING,
_(u'Error during service logout %s') % error
)
if request is not None:
error = utils.unpack_nested_exception(error)
messages.add_message(
request,
messages.WARNING,
_(u'Error during service logout %s') % error
)
def get_ticket(self, ticket_class, service, service_pattern, renew):
"""
@ -309,7 +324,7 @@ class Ticket(models.Model):
return u"Ticket(%s, %s)" % (self.user, self.service)
@classmethod
def clean(cls):
def clean_old_entries(cls):
"""Remove old ticket and send SLO to timed-out services"""
# removing old validated ticket and non validated expired tickets
cls.objects.filter(

6
cas_server/utils.py
View File

@ -15,6 +15,7 @@ from .default_settings import settings
from django.utils.importlib import import_module
from django.core.urlresolvers import reverse
from django.http import HttpResponseRedirect
from django.contrib.sessions.models import Session
import urlparse
import urllib
@ -101,3 +102,8 @@ def gen_pgtiou():
def gen_saml_id():
"""Generate an saml id"""
return _gen_ticket('_')
def get_session(request):
if not request.session.exists(request.session.session_key):
request.session.create()
return Session.objects.get(session_key=request.session.session_key)

27
cas_server/views.py
View File

@ -69,7 +69,10 @@ class LogoutMixin(object):
def logout(self):
"""effectively destroy CAS session"""
try:
user = models.User.objects.get(username=self.request.session.get("username"))
user = models.User.objects.get(
username=self.request.session.get("username"),
session=utils.get_session(self.request)
)
user.logout(self.request)
user.delete()
except models.User.DoesNotExist:
@ -151,7 +154,10 @@ class LoginView(View, LogoutMixin):
elif not request.session.get("authenticated") or self.renew:
self.init_form(request.POST)
if self.form.is_valid():
self.user = models.User.objects.get(username=self.form.cleaned_data['username'])
self.user = models.User.objects.get(
username=self.form.cleaned_data['username'],
session=utils.get_session(self.request)
)
request.session.set_expiry(0)
request.session["username"] = self.form.cleaned_data['username']
request.session["warn"] = True if self.form.cleaned_data.get("warn") else False
@ -179,6 +185,7 @@ class LoginView(View, LogoutMixin):
def init_form(self, values=None):
self.form = forms.UserCredential(
self.request,
values,
initial={
'service':self.service,
@ -254,7 +261,10 @@ class LoginView(View, LogoutMixin):
def authenticated(self):
"""Processing authenticated users"""
try:
self.user = models.User.objects.get(username=self.request.session.get("username"))
self.user = models.User.objects.get(
username=self.request.session.get("username"),
session=utils.get_session(self.request)
)
except models.User.DoesNotExist:
self.logout()
return utils.redirect_params("cas_server:login", params=self.request.GET)
@ -329,6 +339,7 @@ class Auth(View):
if not username or not password or not service:
return HttpResponse("no\n", content_type="text/plain")
form = forms.UserCredential(
request,
request.POST,
initial={
'service':service,
@ -338,18 +349,20 @@ class Auth(View):
)
if form.is_valid():
try:
user = models.User.objects.get(username=form.cleaned_data['username'])
user = models.User.objects.get(
username=form.cleaned_data['username'],
session=utils.get_session(request)
)
# is the service allowed
service_pattern = ServicePattern.validate(service)
# is the current user allowed on this service
service_pattern.check_user(user)
# if the user has asked to be warned before any login to a service
if not request.session.get("authenticated"):
user.delete()
return HttpResponse("yes\n", content_type="text/plain")
except (ServicePattern.DoesNotExist, ServicePatternException) as error:
print "error: %r" % error
return HttpResponse("no\n", content_type="text/plain")
else:
print "bad password"
return HttpResponse("no\n", content_type="text/plain")
class Validate(View):