[Twisted-web] Get access to Avatar from Resource object?

[exarkun at twistedmatrix.com]

On 04:28 pm, jacek99 at gmail.com wrote:
>I am trying to understand how it works in the context of twisted.web 
>and
>Resources, but I always get an exception on the portal object
>Here is the core code:
>
>    passwords = {"admin":"password"}
>    users = {"admin":"Administrator"}
>
>    realm = TestRealm(users)
>
>    p = 
>portal.Portal(TestRealm(users),(PasswordDictChecker(passwords),))

Your Portal instance is named `p`
>    credentialFactory = BasicCredentialFactory("CorePost")
>    resource = HTTPAuthSessionWrapper(portal, [credentialFactory])

But you pass in the `portal` module instead.

Jean-Paul
>    print "Running..."
>
>    factory = Site(resource)
>    reactor.listenTCP(8084, factory)
>    reactor.run()
>
>Error:
>
>Unhandled Error
>Traceback (most recent call last):
>  File
>"/usr/local/lib/python2.7/dist-packages/Twisted-12.0.0-py2.7-linux- 
>x86_64.egg/twisted/protocols/basic.py",
>line 564, in dataReceived
>    why = self.lineReceived(line)
>  File
>"/usr/local/lib/python2.7/dist-packages/Twisted-12.0.0-py2.7-linux- 
>x86_64.egg/twisted/web/http.py",
>line 1551, in lineReceived
>    self.allContentReceived()
>  File
>"/usr/local/lib/python2.7/dist-packages/Twisted-12.0.0-py2.7-linux- 
>x86_64.egg/twisted/web/http.py",
>line 1618, in allContentReceived
>    req.requestReceived(command, path, version)
>  File
>"/usr/local/lib/python2.7/dist-packages/Twisted-12.0.0-py2.7-linux- 
>x86_64.egg/twisted/web/http.py",
>line 773, in requestReceived
>    self.process()
>--- <exception caught here> ---
>  File
>"/usr/local/lib/python2.7/dist-packages/Twisted-12.0.0-py2.7-linux- 
>x86_64.egg/twisted/web/server.py",
>line 131, in process
>    resrc = self.site.getResourceFor(self)
>  File
>"/usr/local/lib/python2.7/dist-packages/Twisted-12.0.0-py2.7-linux- 
>x86_64.egg/twisted/web/server.py",
>line 562, in getResourceFor
>    return resource.getChildForRequest(self.resource, request)
>  File
>"/usr/local/lib/python2.7/dist-packages/Twisted-12.0.0-py2.7-linux- 
>x86_64.egg/twisted/web/resource.py",
>line 65, in getChildForRequest
>    resource = resource.getChildWithDefault(pathElement, request)
>  File
>"/usr/local/lib/python2.7/dist-packages/Twisted-12.0.0-py2.7-linux- 
>x86_64.egg/twisted/web/_auth/wrapper.py",
>line 142, in getChildWithDefault
>    return self._authorizedResource(request)
>  File
>"/usr/local/lib/python2.7/dist-packages/Twisted-12.0.0-py2.7-linux- 
>x86_64.egg/twisted/web/_auth/wrapper.py",
>line 106, in _authorizedResource
>    return util.DeferredResource(self._login(Anonymous()))
>  File
>"/usr/local/lib/python2.7/dist-packages/Twisted-12.0.0-py2.7-linux- 
>x86_64.egg/twisted/web/_auth/wrapper.py",
>line 152, in _login
>    d = self._portal.login(credentials, None, IResource)
>*exceptions.AttributeError: 'module' object has no attribute 'login'*
>*
>*
>Attached the full file.
>
>Not sure I understand what I am doing right here. The app starts up 
>fine,
>but throws the error on any request.
>Also, how do I hook up actual Resources?
>Do I do it do the HttpAuthSessionWrapper? It is an IResources, but
>complains that it does not have a putChild() on it?
>Should my TestRealm extend a Resource and I add my child Resource 
>there?
>
>Sorry for all the questions, but the docs don't really cover the A-Z
>scenario of getting a running twisted.web app with Http auth... :-(
>
>Jacek