Initial commit

vendor/github.com/jackc/pgproto3/v2/password_message.go

@@ -0,0 +1,54 @@
+package pgproto3
+
+import (
+	"bytes"
+	"encoding/json"
+
+	"github.com/jackc/pgio"
+)
+
+type PasswordMessage struct {
+	Password string
+}
+
+// Frontend identifies this message as sendable by a PostgreSQL frontend.
+func (*PasswordMessage) Frontend() {}
+
+// Frontend identifies this message as an authentication response.
+func (*PasswordMessage) InitialResponse() {}
+
+// 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 *PasswordMessage) Decode(src []byte) error {
+	buf := bytes.NewBuffer(src)
+
+	b, err := buf.ReadBytes(0)
+	if err != nil {
+		return err
+	}
+	dst.Password = string(b[:len(b)-1])
+
+	return nil
+}
+
+// Encode encodes src into dst. dst will include the 1 byte message type identifier and the 4 byte message length.
+func (src *PasswordMessage) Encode(dst []byte) []byte {
+	dst = append(dst, 'p')
+	dst = pgio.AppendInt32(dst, int32(4+len(src.Password)+1))
+
+	dst = append(dst, src.Password...)
+	dst = append(dst, 0)
+
+	return dst
+}
+
+// MarshalJSON implements encoding/json.Marshaler.
+func (src PasswordMessage) MarshalJSON() ([]byte, error) {
+	return json.Marshal(struct {
+		Type     string
+		Password string
+	}{
+		Type:     "PasswordMessage",
+		Password: src.Password,
+	})
+}