mirror of
https://github.com/superseriousbusiness/gotosocial.git
synced 2024-11-29 23:22:45 +00:00
95 lines
2.1 KiB
Go
95 lines
2.1 KiB
Go
package pgproto3
|
|
|
|
import (
|
|
"bytes"
|
|
"encoding/hex"
|
|
"encoding/json"
|
|
"errors"
|
|
|
|
"github.com/jackc/pgio"
|
|
)
|
|
|
|
type SASLInitialResponse struct {
|
|
AuthMechanism string
|
|
Data []byte
|
|
}
|
|
|
|
// Frontend identifies this message as sendable by a PostgreSQL frontend.
|
|
func (*SASLInitialResponse) Frontend() {}
|
|
|
|
// 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 *SASLInitialResponse) Decode(src []byte) error {
|
|
*dst = SASLInitialResponse{}
|
|
|
|
rp := 0
|
|
|
|
idx := bytes.IndexByte(src, 0)
|
|
if idx < 0 {
|
|
return errors.New("invalid SASLInitialResponse")
|
|
}
|
|
|
|
dst.AuthMechanism = string(src[rp:idx])
|
|
rp = idx + 1
|
|
|
|
rp += 4 // The rest of the message is data so we can just skip the size
|
|
dst.Data = src[rp:]
|
|
|
|
return nil
|
|
}
|
|
|
|
// Encode encodes src into dst. dst will include the 1 byte message type identifier and the 4 byte message length.
|
|
func (src *SASLInitialResponse) Encode(dst []byte) []byte {
|
|
dst = append(dst, 'p')
|
|
sp := len(dst)
|
|
dst = pgio.AppendInt32(dst, -1)
|
|
|
|
dst = append(dst, []byte(src.AuthMechanism)...)
|
|
dst = append(dst, 0)
|
|
|
|
dst = pgio.AppendInt32(dst, int32(len(src.Data)))
|
|
dst = append(dst, src.Data...)
|
|
|
|
pgio.SetInt32(dst[sp:], int32(len(dst[sp:])))
|
|
|
|
return dst
|
|
}
|
|
|
|
// MarshalJSON implements encoding/json.Marshaler.
|
|
func (src SASLInitialResponse) MarshalJSON() ([]byte, error) {
|
|
return json.Marshal(struct {
|
|
Type string
|
|
AuthMechanism string
|
|
Data string
|
|
}{
|
|
Type: "SASLInitialResponse",
|
|
AuthMechanism: src.AuthMechanism,
|
|
Data: string(src.Data),
|
|
})
|
|
}
|
|
|
|
// UnmarshalJSON implements encoding/json.Unmarshaler.
|
|
func (dst *SASLInitialResponse) UnmarshalJSON(data []byte) error {
|
|
// Ignore null, like in the main JSON package.
|
|
if string(data) == "null" {
|
|
return nil
|
|
}
|
|
|
|
var msg struct {
|
|
AuthMechanism string
|
|
Data string
|
|
}
|
|
if err := json.Unmarshal(data, &msg); err != nil {
|
|
return err
|
|
}
|
|
dst.AuthMechanism = msg.AuthMechanism
|
|
if msg.Data != "" {
|
|
decoded, err := hex.DecodeString(msg.Data)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
dst.Data = decoded
|
|
}
|
|
return nil
|
|
}
|