go/src/net/smtp/auth.go

type Auth …

type ServerInfo …

type plainAuth …

// PlainAuth returns an [Auth] that implements the PLAIN authentication
// mechanism as defined in RFC 4616. The returned Auth uses the given
// username and password to authenticate to host and act as identity.
// Usually identity should be the empty string, to act as username.
//
// PlainAuth will only send the credentials if the connection is using TLS
// or is connected to localhost. Otherwise authentication will fail with an
// error, without sending the credentials.
func PlainAuth(identity, username, password, host string) Auth { … }

func isLocalhost(name string) bool { … }

func (a *plainAuth) Start(server *ServerInfo) (string, []byte, error) { … }

func (a *plainAuth) Next(fromServer []byte, more bool) ([]byte, error) { … }

type cramMD5Auth …

// CRAMMD5Auth returns an [Auth] that implements the CRAM-MD5 authentication
// mechanism as defined in RFC 2195.
// The returned Auth uses the given username and secret to authenticate
// to the server using the challenge-response mechanism.
func CRAMMD5Auth(username, secret string) Auth { … }

func (a *cramMD5Auth) Start(server *ServerInfo) (string, []byte, error) { … }

func (a *cramMD5Auth) Next(fromServer []byte, more bool) ([]byte, error) { … }