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from ..http import parse_authorization_header
from ..http import parse_www_authenticate_header
from ..utils import cached_property
class AuthorizationMixin(object):
"""Adds an :attr:`authorization` property that represents the parsed
value of the `Authorization` header as
:class:`~werkzeug.datastructures.Authorization` object.
"""
@cached_property
def authorization(self):
"""The `Authorization` object in parsed form."""
header = self.environ.get("HTTP_AUTHORIZATION")
return parse_authorization_header(header)
class WWWAuthenticateMixin(object):
"""Adds a :attr:`www_authenticate` property to a response object."""
@property
def www_authenticate(self):
"""The `WWW-Authenticate` header in a parsed form."""
def on_update(www_auth):
if not www_auth and "www-authenticate" in self.headers:
del self.headers["www-authenticate"]
elif www_auth:
self.headers["WWW-Authenticate"] = www_auth.to_header()
header = self.headers.get("www-authenticate")
return parse_www_authenticate_header(header, on_update)
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