Struct Authenticator 

pub struct Authenticator { /* private fields */ }

Negotiates a challenge once, then answers every subsequent request in the session (RFC 7235 WWW-Authenticate/Authorization; RFC 2326 §14 for RTSP; RFC 6750 for Bearer).

Construct with Authenticator::from_challenge on the first 401/407, then call Authenticator::authorization for every outgoing request — including the immediate retry. Call from_challenge again if the server re-challenges with a fresh nonce (stale=true) to pick it up.

Implementations

impl Authenticator

pub fn from_challenge( www_authenticate: &str, credentials: Credentials, ) -> Result<Authenticator, Error>

Builds an authenticator from a WWW-Authenticate challenge value and the caller’s credentials.

For Credentials::Basic/Digest, the challenge is parsed by http_auth, which itself decides the wire scheme (Basic or Digest) from the challenge content — not from which Credentials variant was passed in. For Credentials::Bearer, the challenge value is not inspected: RFC 6750 needs no challenge round-trip, so the token is used as-is.

pub fn authorization( &mut self, ctx: &RequestContext<'_>, ) -> Result<String, Error>

Computes the Authorization header value for ctx.

For Basic/Digest this advances the Digest nonce count on every call (RFC 7616 §3.3); for Bearer it always returns Bearer <token> (RFC 6750).

Trait Implementations

impl Debug for Authenticator

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.