Add copy of Discourse-Auth app,

Probably should split into separate repo at some point, but committing here so I don't lose it

DiscourseAuth/models.py

@@ -0,0 +1,47 @@
+import uuid
+from django.db import models
+
+from datetime import datetime, timedelta
+
+from django.conf import settings
+
+
+class AuthAttemptManager(models.Manager):
+    expiryMinutes = 10
+
+    def get_acceptable(self):
+        oldestAcceptableNonce = datetime.now() - timedelta(minutes=self.expiryMinutes)
+        return super(AuthAttemptManager, self).get_queryset().filter(created__gte=oldestAcceptableNonce)
+
+    def purge_unacceptable(self):
+        oldestAcceptableNonce = datetime.now() - timedelta(minutes=self.expiryMinutes)
+        super(AuthAttemptManager, self).get_queryset().filter(created__lt=oldestAcceptableNonce).delete()
+
+
+def gen_nonce():
+    # return "THISISANONCETHATWEWILLREUSE"
+    return uuid.uuid4()
+
+
+class AuthAttempt(models.Model):
+    nonce = models.CharField(max_length=25, default=gen_nonce)
+    created = models.DateTimeField(auto_now=True)
+
+
+
+    objects = AuthAttemptManager()
+
+    def __str__(self):
+        return "AuthAttempt at " + str(self.created)
+
+
+class DiscourseUserLink(models.Model):
+    django_user = models.OneToOneField(
+        settings.AUTH_USER_MODEL,
+        on_delete=models.CASCADE,
+    )
+
+    discourse_user_id = models.IntegerField(unique=True)
+
+    def __str__(self):
+        return "{} - {}".format(self.discourse_user_id, str(self.django_user))