github.com/jackc/pgx/v5@v5.5.5/pgproto3/sasl_response.go (about)

     1  package pgproto3
     2  
     3  import (
     4  	"encoding/hex"
     5  	"encoding/json"
     6  )
     7  
     8  type SASLResponse struct {
     9  	Data []byte
    10  }
    11  
    12  // Frontend identifies this message as sendable by a PostgreSQL frontend.
    13  func (*SASLResponse) Frontend() {}
    14  
    15  // Decode decodes src into dst. src must contain the complete message with the exception of the initial 1 byte message
    16  // type identifier and 4 byte message length.
    17  func (dst *SASLResponse) Decode(src []byte) error {
    18  	*dst = SASLResponse{Data: src}
    19  	return nil
    20  }
    21  
    22  // Encode encodes src into dst. dst will include the 1 byte message type identifier and the 4 byte message length.
    23  func (src *SASLResponse) Encode(dst []byte) ([]byte, error) {
    24  	dst, sp := beginMessage(dst, 'p')
    25  	dst = append(dst, src.Data...)
    26  	return finishMessage(dst, sp)
    27  }
    28  
    29  // MarshalJSON implements encoding/json.Marshaler.
    30  func (src SASLResponse) MarshalJSON() ([]byte, error) {
    31  	return json.Marshal(struct {
    32  		Type string
    33  		Data string
    34  	}{
    35  		Type: "SASLResponse",
    36  		Data: string(src.Data),
    37  	})
    38  }
    39  
    40  // UnmarshalJSON implements encoding/json.Unmarshaler.
    41  func (dst *SASLResponse) UnmarshalJSON(data []byte) error {
    42  	var msg struct {
    43  		Data string
    44  	}
    45  	if err := json.Unmarshal(data, &msg); err != nil {
    46  		return err
    47  	}
    48  	if msg.Data != "" {
    49  		decoded, err := hex.DecodeString(msg.Data)
    50  		if err != nil {
    51  			return err
    52  		}
    53  		dst.Data = decoded
    54  	}
    55  	return nil
    56  }