You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
82 lines
2.0 KiB
82 lines
2.0 KiB
package pgproto3
|
|
|
|
import (
|
|
"encoding/binary"
|
|
"encoding/json"
|
|
"errors"
|
|
|
|
"github.com/jackc/pgio"
|
|
)
|
|
|
|
// AuthenticationSASLContinue is a message sent from the backend containing a SASL challenge.
|
|
type AuthenticationSASLContinue struct {
|
|
Data []byte
|
|
}
|
|
|
|
// Backend identifies this message as sendable by the PostgreSQL backend.
|
|
func (*AuthenticationSASLContinue) Backend() {}
|
|
|
|
// Backend identifies this message as an authentication response.
|
|
func (*AuthenticationSASLContinue) 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 *AuthenticationSASLContinue) Decode(src []byte) error {
|
|
if len(src) < 4 {
|
|
return errors.New("authentication message too short")
|
|
}
|
|
|
|
authType := binary.BigEndian.Uint32(src)
|
|
|
|
if authType != AuthTypeSASLContinue {
|
|
return errors.New("bad auth type")
|
|
}
|
|
|
|
dst.Data = src[4:]
|
|
|
|
return nil
|
|
}
|
|
|
|
// Encode encodes src into dst. dst will include the 1 byte message type identifier and the 4 byte message length.
|
|
func (src *AuthenticationSASLContinue) Encode(dst []byte) []byte {
|
|
dst = append(dst, 'R')
|
|
sp := len(dst)
|
|
dst = pgio.AppendInt32(dst, -1)
|
|
dst = pgio.AppendUint32(dst, AuthTypeSASLContinue)
|
|
|
|
dst = append(dst, src.Data...)
|
|
|
|
pgio.SetInt32(dst[sp:], int32(len(dst[sp:])))
|
|
|
|
return dst
|
|
}
|
|
|
|
// MarshalJSON implements encoding/json.Marshaler.
|
|
func (src AuthenticationSASLContinue) MarshalJSON() ([]byte, error) {
|
|
return json.Marshal(struct {
|
|
Type string
|
|
Data string
|
|
}{
|
|
Type: "AuthenticationSASLContinue",
|
|
Data: string(src.Data),
|
|
})
|
|
}
|
|
|
|
// UnmarshalJSON implements encoding/json.Unmarshaler.
|
|
func (dst *AuthenticationSASLContinue) UnmarshalJSON(data []byte) error {
|
|
// Ignore null, like in the main JSON package.
|
|
if string(data) == "null" {
|
|
return nil
|
|
}
|
|
|
|
var msg struct {
|
|
Data string
|
|
}
|
|
if err := json.Unmarshal(data, &msg); err != nil {
|
|
return err
|
|
}
|
|
|
|
dst.Data = []byte(msg.Data)
|
|
return nil
|
|
}
|