Session transfer tokens.

[wolnelektury.git] / src / api / models.py

diff --git a/src/api/models.py b/src/api/models.py
index 1e25c36..eade037 100644 (file)
--- a/src/api/models.py
+++ b/src/api/models.py
@@ -1,19 +1,20 @@
-# This file is part of Wolnelektury, licensed under GNU Affero GPLv3 or later.
-# Copyright © Fundacja Nowoczesna Polska. See NOTICE for more information.
+# This file is part of Wolne Lektury, licensed under GNU Affero GPLv3 or later.
+# Copyright © Fundacja Wolne Lektury. See NOTICE for more information.

 #
 #

+from datetime import timedelta
+import uuid

 from django.conf import settings
 from django.contrib.auth.models import User
 from django.contrib.contenttypes.models import ContentType
 from django.db import models
 from django.db.models.signals import pre_delete
 from django.conf import settings
 from django.contrib.auth.models import User
 from django.contrib.contenttypes.models import ContentType
 from django.db import models
 from django.db.models.signals import pre_delete

-from django.utils.translation import ugettext_lazy as _
-
+from django.utils import timezone

 from catalogue.models import Book, Tag
 
 
 class Deleted(models.Model):
     object_id = models.IntegerField()
 from catalogue.models import Book, Tag
 
 
 class Deleted(models.Model):
     object_id = models.IntegerField()

-    slug = models.SlugField(_('slug'), max_length=120, blank=True, db_index=True)
+    slug = models.SlugField('slug', max_length=120, blank=True, db_index=True)

     content_type = models.ForeignKey(ContentType, models.CASCADE)
     category = models.CharField(max_length=64, null=True, blank=True, db_index=True)
     created_at = models.DateTimeField(editable=False, db_index=True)
     content_type = models.ForeignKey(ContentType, models.CASCADE)
     category = models.CharField(max_length=64, null=True, blank=True, db_index=True)
     created_at = models.DateTimeField(editable=False, db_index=True)


@@ -30,14 +31,17 @@ def _pre_delete_handler(sender, instance, **kwargs):
         if sender == Tag:
             if instance.category in ('book', 'set'):
                 return
         if sender == Tag:
             if instance.category in ('book', 'set'):
                 return

-            else:
-                category = instance.category
+            category = instance.category

         else:
             category = None
         content_type = ContentType.objects.get_for_model(sender)
         Deleted.objects.create(
         else:
             category = None
         content_type = ContentType.objects.get_for_model(sender)
         Deleted.objects.create(

-            content_type=content_type, object_id=instance.id, created_at=instance.created_at, category=category,
-            slug=instance.slug)
+            content_type=content_type,
+            object_id=instance.id,
+            created_at=instance.created_at,
+            category=category,
+            slug=instance.slug
+        )

 pre_delete.connect(_pre_delete_handler)
 
 
 pre_delete.connect(_pre_delete_handler)
 
 


@@ -47,6 +51,9 @@ class BookUserData(models.Model):
     complete = models.BooleanField(default=False)
     last_changed = models.DateTimeField(auto_now=True)
 
     complete = models.BooleanField(default=False)
     last_changed = models.DateTimeField(auto_now=True)
 

+    class Meta:
+        unique_together = [('user', 'book')]
+

     @property
     def state(self):
         return 'complete' if self.complete else 'reading'
     @property
     def state(self):
         return 'complete' if self.complete else 'reading'


@@ -57,7 +64,6 @@ class BookUserData(models.Model):
         instance.complete = state == 'complete'
         instance.save()
         return instance
         instance.complete = state == 'complete'
         instance.save()
         return instance

-from django.conf import settings

 
 
 KEY_SIZE = 18
 
 
 KEY_SIZE = 18


@@ -76,7 +82,7 @@ class Nonce(models.Model):
     key = models.CharField(max_length=255)
 
     def __str__(self):
     key = models.CharField(max_length=255)
 
     def __str__(self):

-        return u"Nonce %s for %s" % (self.key, self.consumer_key)
+        return "Nonce %s for %s" % (self.key, self.consumer_key)

 
 
 class Consumer(models.Model):
 
 
 class Consumer(models.Model):


@@ -85,24 +91,58 @@ class Consumer(models.Model):
     key = models.CharField(max_length=KEY_SIZE)
     secret = models.CharField(max_length=SECRET_SIZE)
     status = models.CharField(max_length=16, choices=CONSUMER_STATES, default='pending')
     key = models.CharField(max_length=KEY_SIZE)
     secret = models.CharField(max_length=SECRET_SIZE)
     status = models.CharField(max_length=16, choices=CONSUMER_STATES, default='pending')

-    user = models.ForeignKey(settings.AUTH_USER_MODEL, models.CASCADE, null=True, blank=True, related_name='consumers')
+    user = models.ForeignKey(
+        settings.AUTH_USER_MODEL, models.CASCADE,
+        null=True, blank=True, related_name='consumers'
+    )

 
     def __str__(self):
 
     def __str__(self):

-        return u"Consumer %s with key %s" % (self.name, self.key)
+        return "Consumer %s with key %s" % (self.name, self.key)

 
 
 class Token(models.Model):
     REQUEST = 1
     ACCESS = 2
 
 
 class Token(models.Model):
     REQUEST = 1
     ACCESS = 2

-    TOKEN_TYPES = ((REQUEST, u'Request'), (ACCESS, u'Access'))
+    REFRESH = 3
+    TOKEN_TYPES = (
+        (REQUEST, 'Request'),
+        (ACCESS, 'Access'),
+        (REFRESH, 'Refresh')
+    )

 
     key = models.CharField(max_length=KEY_SIZE)
     secret = models.CharField(max_length=SECRET_SIZE)
     token_type = models.IntegerField(choices=TOKEN_TYPES)
     timestamp = models.IntegerField()
     is_approved = models.BooleanField(default=False)
 
     key = models.CharField(max_length=KEY_SIZE)
     secret = models.CharField(max_length=SECRET_SIZE)
     token_type = models.IntegerField(choices=TOKEN_TYPES)
     timestamp = models.IntegerField()
     is_approved = models.BooleanField(default=False)

-    user = models.ForeignKey(settings.AUTH_USER_MODEL, models.CASCADE, null=True, blank=True, related_name='tokens')
-    consumer = models.ForeignKey(Consumer, models.CASCADE)
+    user = models.ForeignKey(
+        settings.AUTH_USER_MODEL, models.CASCADE,
+        null=True, blank=True, related_name='tokens'
+    )
+    consumer = models.ForeignKey(Consumer, models.CASCADE, null=True, blank=True)

 
     def __str__(self):
 
     def __str__(self):

-        return u"%s Token %s for %s" % (self.get_token_type_display(), self.key, self.consumer)
+        return "%s Token %s for %s" % (self.get_token_type_display(), self.key, self.consumer)
+
+
+class SessionTransferToken(models.Model):
+    token = models.UUIDField(default=uuid.uuid4, primary_key=True, editable=False)
+    user = models.ForeignKey(
+        settings.AUTH_USER_MODEL, models.CASCADE)
+    created_at = models.DateTimeField(auto_now_add=True)
+    expires_at = models.DateTimeField()
+    used = models.BooleanField(default=False)
+
+    @classmethod
+    def create_for_user(cls, user, lifetime_seconds=30):
+        return cls.objects.create(
+            user=user,
+            expires_at=timezone.now() + timedelta(seconds=lifetime_seconds)
+        )
+
+    def is_valid(self):
+        if self.used:
+            return False
+        if timezone.now() > self.expires_at:
+            return False
+        return True