1 from __future__ import unicode_literals
3 from django.conf import settings
4 from django.db import models
5 from django.utils.translation import ugettext_lazy as _
6 from random import Random
9 from urllib.parse import urlencode, urlparse, parse_qs, ParseResult
11 from urllib import urlencode
12 from urlparse import urlparse, ParseResult
13 from urlparse import parse_qs
15 __all__ = ['ServiceTicket', 'LoginTicket', 'ProxyGrantingTicket', 'ProxyTicket', 'ProxyGrantingTicketIOU']
17 class BaseTicket(models.Model):
18 ticket = models.CharField(_('ticket'), max_length=32)
19 created = models.DateTimeField(_('created'), auto_now=True)
24 def __init__(self, *args, **kwargs):
25 if 'ticket' not in kwargs:
26 kwargs['ticket'] = self._generate_ticket()
27 super(BaseTicket, self).__init__(*args, **kwargs)
29 def __unicode__(self):
32 def _generate_ticket(self, length=ticket.max_length, chars=string.ascii_letters + string.digits):
33 """ Generates a random string of the requested length. Used for creation of tickets. """
34 return "%s-%s" % (self.prefix, ''.join(Random().sample(chars, length - (len(self.prefix) + 1))))
37 class ServiceTicket(BaseTicket):
38 user = models.ForeignKey(settings.AUTH_USER_MODEL, verbose_name=_('user'), on_delete=models.CASCADE)
39 service = models.URLField(_('service'), max_length=2048)
44 verbose_name = _('Service Ticket')
45 verbose_name_plural = _('Service Tickets')
47 def get_redirect_url(self):
48 parsed = urlparse(self.service)
49 query = parse_qs(parsed.query)
50 query['ticket'] = [self.ticket]
51 query = [((k, v) if len(v) > 1 else (k, v[0])) for k, v in query.items()]
52 parsed = ParseResult(parsed.scheme, parsed.netloc,
53 parsed.path, parsed.params,
54 urlencode(query), parsed.fragment)
55 return parsed.geturl()
58 class LoginTicket(BaseTicket):
62 verbose_name = _('Login Ticket')
63 verbose_name_plural = _('Login Tickets')
66 class ProxyGrantingTicket(BaseTicket):
67 user = models.ForeignKey(settings.AUTH_USER_MODEL, verbose_name=_('user'), on_delete=models.CASCADE)
68 service = models.URLField(_('service'), null=True)
69 pgt = models.ForeignKey('self', null=True, on_delete=models.CASCADE)
70 pgtiou = models.CharField(max_length=256, verbose_name=_('PGTiou'))
73 def __init__(self, *args, **kwargs):
74 if 'pgtiou' not in kwargs:
75 kwargs['pgtiou'] = "PGTIOU-%s" % (''.join(Random().sample(string.ascii_letters + string.digits, 50)))
76 super(ProxyGrantingTicket, self).__init__(*args, **kwargs)
79 verbose_name = _('Proxy Granting Ticket')
80 verbose_name_plural = _('Proxy Granting Tickets')
83 class ProxyTicket(ServiceTicket):
84 proxyGrantingTicket = models.ForeignKey(ProxyGrantingTicket, verbose_name=_('Proxy Granting Ticket'), on_delete=models.CASCADE)
89 verbose_name = _('Proxy Ticket')
90 verbose_name_plural = _('Proxy Tickets')
93 class ProxyGrantingTicketIOU(BaseTicket):
94 proxyGrantingTicket = models.ForeignKey(ProxyGrantingTicket, verbose_name=_('Proxy Granting Ticket'), on_delete=models.CASCADE)
99 verbose_name = _('Proxy Granting Ticket IOU')
100 verbose_name_plural = _('Proxy Granting Tickets IOU')