HTTPNormalizer wraps a net.Conn, intercepting Read calls, and normalizes any HTTP requests that are read.

Note: all config fields must be set before calling Accept.

HTTPTransformer wraps a net.Conn, intercepting Write calls and applying the specified protocol transform.

ScopedSpecNames groups a list of Specs, referenced by their Spec name, with the group defined by a scope.

Spec is a transform spec.

Specs is a set of named Specs.