NewBasicAuthNoUsernameError returns an error for a basic challenge without a username.

BasicAuthNoUsernameError when basic authentication challenge handling was attempted but the required username was not provided from the command line options.

BasicChallengeHandler handles the "WWW-Authenticate: Basic" challenges.

MultiHandler manages a series of authentication challenges it is single-use only, and not thread-safe.

ChallengeHandler handles responses to WWW-Authenticate challenges.

PasswordPrompter is an interface for requesting passwords in the form of a string.