package pgproto3 import ( "encoding/binary" "encoding/json" "errors" "github.com/jackc/pgx/v5/internal/pgio" ) // AuthenticationCleartextPassword is a message sent from the backend indicating that a clear-text password is required. type AuthenticationCleartextPassword struct { } // Backend identifies this message as sendable by the PostgreSQL backend. func (*AuthenticationCleartextPassword) Backend() {} // Backend identifies this message as an authentication response. func (*AuthenticationCleartextPassword) AuthenticationResponse() {} // Decode decodes src into dst. src must contain the complete message with the exception of the initial 1 byte message // type identifier and 4 byte message length. func (dst *AuthenticationCleartextPassword) Decode(src []byte) error { if len(src) != 4 { return errors.New("bad authentication message size") } authType := binary.BigEndian.Uint32(src) if authType != AuthTypeCleartextPassword { return errors.New("bad auth type") } return nil } // Encode encodes src into dst. dst will include the 1 byte message type identifier and the 4 byte message length. func (src *AuthenticationCleartextPassword) Encode(dst []byte) ([]byte, error) { dst, sp := beginMessage(dst, 'R') dst = pgio.AppendUint32(dst, AuthTypeCleartextPassword) return finishMessage(dst, sp) } // MarshalJSON implements encoding/json.Marshaler. func (src AuthenticationCleartextPassword) MarshalJSON() ([]byte, error) { return json.Marshal(struct { Type string }{ Type: "AuthenticationCleartextPassword", }) }