Known implementations: twisted.conch.checkers.SSHProtocolChecker, twisted.conch.checkers.SSHPublicKeyChecker, twisted.conch.checkers.SSHPublicKeyDatabase, twisted.conch.checkers.UNIXPasswordDatabase, twisted.cred.checkers.AllowAnonymousAccess, twisted.cred.checkers.FilePasswordDB, twisted.cred.checkers.InMemoryUsernamePasswordDatabaseDontUse, twisted.mail.maildir.DirdbmDatabase, twisted.plugins.cred_unix.UNIXChecker

An object that can check sub-interfaces of ICredentials.

Attribute credentialInterfaces A list of sub-interfaces of ICredentials which specifies which I may check.
Method requestAvatarId
credentialInterfaces =

A list of sub-interfaces of ICredentials which specifies which I may check.

def requestAvatarId(credentials): (source)
Parameterscredentialssomething which implements one of the interfaces in self.credentialInterfaces.
Returnsa Deferred which will fire a string which identifies an avatar, an empty tuple to specify an authenticated anonymous user (provided as checkers.ANONYMOUS) or fire a Failure(UnauthorizedLogin). Alternatively, return the result itself.
See Alsotwisted.cred.credentials
API Documentation for Twisted, generated by pydoctor at 2016-10-29 16:19:29.