twisted.names.root : API documentation

Resolver implementation for querying successive authoritative servers to lookup a record, starting from the root nameservers.

Author

Jp Calderone

todo:

   robustify it
   documentation

Class	Resolver	`Resolver` implements recursive lookup starting from a specified list of root servers.
Function	makePlaceholder	Undocumented
Class	DeferredResolver	Undocumented
Function	bootstrap	Lookup the root nameserver addresses using the given resolver
Class	_DummyController	A do-nothing DNS controller. This is useful when all messages received will be responses to previously issued queries. Anything else received will be ignored.

def makePlaceholder(deferred, name): (source)

Undocumented

def bootstrap(resolver, resolverFactory=None): (source)

Lookup the root nameserver addresses using the given resolver

Return a Resolver which will eventually become a root.Resolver instance that has references to all the root servers that we were able to look up.

Parameters	resolver	The resolver instance which will be used to lookup the root nameserver addresses. (type: `twisted.internet.interfaces.IResolverSimple`)
	resolverFactory	An optional callable which returns a resolver instance. It will passed as the `resolverFactory` argument to `Resolver.__init__`. (type: callable)
Returns	A `DeferredResolver` which will be dynamically replaced with `Resolver` when the root nameservers have been looked up.

twisted.names.root module documentation