Remove third_party/twisted_8_1

third_party/twisted_8_1/twisted/web/woven/simpleguard.py

-# Copyright (c) 2001-2004 Twisted Matrix Laboratories.
-# See LICENSE for details.
-
-#
-
-"""
-A simple guard framework for implementing web sites that only need
-'Anonymous' vs 'Logged on' distinction, but nothing more.
-
-If you need
- - multiple levels of access, or
- - multiple-interface applications, or
- - anything else more complex than 'Logged on' and 'Not logged on'
-
-you need to use twisted.web.woven.guard directly.
-"""
-
-from twisted.cred import portal, checkers as checkerslib
-from twisted.web import resource, util
-from twisted.web.woven import guard
-from zope.interface import implements
-
-
-class Authenticated:
-
-    def __init__(self, name=None):
-        self.name = name
-
-    def __nonzero__(self):
-        return bool(self.name)
-
-
-class MarkAuthenticatedResource:
-
-    implements(resource.IResource)
-
-    isLeaf = False
-
-    def __init__(self, resource, name):
-        self.authenticated = Authenticated(name)
-        self.resource = resource
-
-    def render(self, request):
-        request.setComponent(Authenticated, self.authenticated)
-        return self.resource.render(request)
-
-    def getChildWithDefault(self, path, request):
-        request.setComponent(Authenticated, self.authenticated)
-        return self.resource.getChildWithDefault(path, request)
-
-
-class MarkingRealm:
-
-    implements(portal.IRealm)
-
-    def __init__(self, resource, nonauthenticated=None):
-        self.resource = resource
-        self.nonauthenticated = (nonauthenticated or
-                                 MarkAuthenticatedResource(resource, None))
-
-    def requestAvatar(self, avatarId, mind, *interfaces):
-        if resource.IResource not in interfaces:
-            raise NotImplementedError("no interface")
-        if avatarId:
-            return (resource.IResource,
-                    MarkAuthenticatedResource(self.resource, avatarId),
-                    lambda:None)
-        else:
-            return resource.IResource, self.nonauthenticated, lambda:None
-
-
-def parentRedirect(_):
-    return util.ParentRedirect()
-
-def guardResource(resource, checkers, callback=parentRedirect, errback=None,
-                  nonauthenticated=None):
-    myPortal = portal.Portal(MarkingRealm(resource, nonauthenticated))
-    for checker in checkers+[checkerslib.AllowAnonymousAccess()]:
-        myPortal.registerChecker(checker)
-    un = guard.UsernamePasswordWrapper(myPortal,
-                                       callback=callback, errback=errback)
-    return guard.SessionWrapper(un)