django-piston / piston /

from django.db import models
from django.contrib.auth.models import User


class KeyManager(models.Manager):
    '''Add support for random key/secret generation
    def generate_random_codes(self):
        key = User.objects.make_random_password(length=KEY_SIZE)
        secret = User.objects.make_random_password(length=SECRET_SIZE)

        while self.filter(key__exact=key, secret__exact=secret).count():
            secret = User.objects.make_random_password(length=SECRET_SIZE)

        return key, secret

class ConsumerManager(KeyManager):
    def create_consumer(self, name, description=None, user=None):
        Shortcut to create a consumer with random key/secret.
        consumer, created = self.get_or_create(name=name)

        if user:
            consumer.user = user

        if description:
            consumer.description = description

        if created:
            consumer.key, consumer.secret = self.generate_random_codes()

        return consumer

    _default_consumer = None

class ResourceManager(models.Manager):
    _default_resource = None

    def get_default_resource(self, name):
        Add cache if you use a default resource.
        if not self._default_resource:
            self._default_resource = self.get(name=name)

        return self._default_resource        

class TokenManager(KeyManager):
    def create_token(self, consumer, token_type, timestamp, user=None):
        Shortcut to create a token with random key/secret.
        token, created = self.get_or_create(consumer=consumer, 

        if created:
            token.key, token.secret = self.generate_random_codes()

        return token
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