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package securecookie
import (
"bytes"
"encoding/gob"
"encoding/json"
)
// Serialize encodes a value using gob.
func (e GobEncoder) Serialize(src interface{}) ([]byte, error) {
buf := new(bytes.Buffer)
enc := gob.NewEncoder(buf)
if err := enc.Encode(src); err != nil {
return nil, cookieError{cause: err, typ: usageError}
}
return buf.Bytes(), nil
}
// Deserialize decodes a value using gob.
func (e GobEncoder) Deserialize(src []byte, dst interface{}) error {
dec := gob.NewDecoder(bytes.NewBuffer(src))
if err := dec.Decode(dst); err != nil {
return cookieError{cause: err, typ: decodeError}
}
return nil
}
// Serialize encodes a value using encoding/json.
func (e JSONEncoder) Serialize(src interface{}) ([]byte, error) {
buf := new(bytes.Buffer)
enc := json.NewEncoder(buf)
if err := enc.Encode(src); err != nil {
return nil, cookieError{cause: err, typ: usageError}
}
return buf.Bytes(), nil
}
// Deserialize decodes a value using encoding/json.
func (e JSONEncoder) Deserialize(src []byte, dst interface{}) error {
dec := json.NewDecoder(bytes.NewReader(src))
if err := dec.Decode(dst); err != nil {
return cookieError{cause: err, typ: decodeError}
}
return nil
}
// Serialize passes a []byte through as-is.
func (e NopEncoder) Serialize(src interface{}) ([]byte, error) {
if b, ok := src.([]byte); ok {
return b, nil
}
return nil, errValueNotByte
}
// Deserialize passes a []byte through as-is.
func (e NopEncoder) Deserialize(src []byte, dst interface{}) error {
if _, ok := dst.([]byte); ok {
dst = src
return nil
}
return errValueNotByte
}
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