MustAuthenticate is a helper function used to send the WWW-Authenticate HTTP header.

Version is the semantic version of this package More info: https://semver.org.

ErrAuthInvalidRequest is returned when the auth request don't match the expected challenge.

ErrAuthInvalidSyntax is returned when the syntax of the credentials is not what is expected.

Filter AuthBasic is a Filter that implements HTTP Basic Authentication as described in http://www.ietf.org/rfc/rfc2617.txt.