Support for Django up to 3.1. Dropped support for Django<1.10 and Python<3.5.

[django-cas-provider.git] / cas_provider / models.py

diff --git a/cas_provider/models.py b/cas_provider/models.py
index 43463d5..4a38927 100644 (file)
--- a/cas_provider/models.py
+++ b/cas_provider/models.py
@@ -3,15 +3,8 @@ from django.db import models
 from django.utils.translation import ugettext_lazy as _
 from random import Random
 import string
-try:
-    from urllib.parse import urlencode, urlparse, parse_qs, ParseResult
-except ImportError:
-    from urllib import urlencode
-    from urlparse import urlparse, ParseResult
-    try:
-        from urlparse import parse_qs
-    except: # Python <2.6 compatibility
-        from cgi import parse_qs
+from urllib.parse import urlencode, urlparse, parse_qs, ParseResult
+
 
 __all__ = ['ServiceTicket', 'LoginTicket', 'ProxyGrantingTicket', 'ProxyTicket', 'ProxyGrantingTicketIOU']
 
@@ -32,12 +25,12 @@ class BaseTicket(models.Model):
 
     def _generate_ticket(self, length=ticket.max_length, chars=string.ascii_letters + string.digits):
         """ Generates a random string of the requested length. Used for creation of tickets. """
-        return u"%s-%s" % (self.prefix, ''.join(Random().sample(chars, length - (len(self.prefix) + 1))))
+        return "%s-%s" % (self.prefix, ''.join(Random().sample(chars, length - (len(self.prefix) + 1))))
 
 
 class ServiceTicket(BaseTicket):
-    user = models.ForeignKey(settings.AUTH_USER_MODEL, verbose_name=_('user'))
-    service = models.URLField(_('service'))
+    user = models.ForeignKey(settings.AUTH_USER_MODEL, verbose_name=_('user'), on_delete=models.CASCADE)
+    service = models.URLField(_('service'), max_length=2048)
 
     prefix = 'ST'
 
@@ -65,13 +58,15 @@ class LoginTicket(BaseTicket):
 
 
 class ProxyGrantingTicket(BaseTicket):
-    serviceTicket = models.ForeignKey(ServiceTicket, null=True)
+    user = models.ForeignKey(settings.AUTH_USER_MODEL, verbose_name=_('user'), on_delete=models.CASCADE)
+    service = models.URLField(_('service'), null=True)
+    pgt = models.ForeignKey('self', null=True, on_delete=models.CASCADE)
     pgtiou = models.CharField(max_length=256, verbose_name=_('PGTiou'))
     prefix = 'PGT'
 
     def __init__(self, *args, **kwargs):
         if 'pgtiou' not in kwargs:
-            kwargs['pgtiou'] = u"PGTIOU-%s" % (''.join(Random().sample(string.ascii_letters + string.digits, 50)))
+            kwargs['pgtiou'] = "PGTIOU-%s" % (''.join(Random().sample(string.ascii_letters + string.digits, 50)))
         super(ProxyGrantingTicket, self).__init__(*args, **kwargs)
 
     class Meta:
@@ -80,7 +75,7 @@ class ProxyGrantingTicket(BaseTicket):
 
 
 class ProxyTicket(ServiceTicket):
-    proxyGrantingTicket = models.ForeignKey(ProxyGrantingTicket, verbose_name=_('Proxy Granting Ticket'))
+    proxyGrantingTicket = models.ForeignKey(ProxyGrantingTicket, verbose_name=_('Proxy Granting Ticket'), on_delete=models.CASCADE)
 
     prefix = 'PT'
 
@@ -90,7 +85,7 @@ class ProxyTicket(ServiceTicket):
 
 
 class ProxyGrantingTicketIOU(BaseTicket):
-    proxyGrantingTicket = models.ForeignKey(ProxyGrantingTicket, verbose_name=_('Proxy Granting Ticket'))
+    proxyGrantingTicket = models.ForeignKey(ProxyGrantingTicket, verbose_name=_('Proxy Granting Ticket'), on_delete=models.CASCADE)
 
     prefix = 'PGTIOU'