guard.py 文件源码

def __init__(self, portal, callback=None, errback=None):
        """Constructs a UsernamePasswordWrapper around the given portal.

        @param portal: A cred portal for your web application. The checkers
            associated with this portal must be able to accept username/password
            credentials.
        @type portal: L{twisted.cred.portal.Portal}

        @param callback: Gets called after a successful login attempt.
            A resource that redirects to "." will display the avatar resource.
            If this parameter isn't provided, defaults to a standard Woven
            "Thank You" page.
        @type callback: A callable that accepts a Woven
            L{model<twisted.web.woven.interfaces.IModel>} and returns a
            L{IResource<twisted.web.resource.Resource>}.

        @param errback: Gets called after a failed login attempt.
            If this parameter is not provided, defaults to a the standard Woven
            form error (i.e. The original form on a page of its own, with
            errors noted.)
        @type errback: A callable that accepts a Woven
            L{model<twisted.web.woven.interfaces.IModel>} and returns a
            L{IResource<twisted.web.resource.Resource>}.
        """
        Resource.__init__(self)
        self.portal = portal
        self.callback = callback
        self.errback = errback