text: from django.utils.translation import ugettext_lazy as _
  from django.conf import settings
  
  KEY_SIZE = getattr(settings, 'OAUTH_PROVIDER_KEY_SIZE', 32)
  SECRET_SIZE = getattr(settings, 'OAUTH_PROVIDER_SECRET_SIZE', 16)
  VERIFIER_SIZE = getattr(settings, 'OAUTH_PROVIDER_VERIFIER_SIZE', 10)
  CONSUMER_KEY_SIZE = getattr(settings, 'OAUTH_PROVIDER_CONSUMER_KEY_SIZE', 256)
  MAX_URL_LENGTH = 2083 # http://www.boutell.com/newfaq/misc/urllength.html
  
  PENDING = 1
  ACCEPTED = 2
  CANCELED = 3
  REJECTED = 4
  
  CONSUMER_STATES = (
      (PENDING,  _('Pending')),
      (ACCEPTED, _('Accepted')),
      (CANCELED, _('Canceled')),
      (REJECTED, _('Rejected')),
  )
  
  PARAMETERS_NAMES = ('consumer_key', 'token', 'signature',
                      'signature_method', 'timestamp', 'nonce')
  OAUTH_PARAMETERS_NAMES = ['oauth_'+s for s in PARAMETERS_NAMES]
  
  OUT_OF_BAND = 'oob'
  