Source: authentication_cleartext_password.go in package github.com/jackc/pgproto3/v2

Source File
	authentication_cleartext_password.go

Belonging Package
	github.com/jackc/pgproto3/v2

package pgproto3

import (
	"encoding/binary"
	"errors"

	"github.com/jackc/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() {}

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 {
	dst = append(dst, 'R')
	dst = pgio.AppendInt32(dst, 8)
	dst = pgio.AppendUint32(dst, AuthTypeCleartextPassword)
	return dst


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