frostfs-api-go/object/sign.go

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package object
import (
"io"
)
// SignedData returns marshaled payload of the Put request.
//
// If payload is nil, ErrHeaderNotFound returns.
func (m PutRequest) SignedData() ([]byte, error) {
r := m.GetR()
if r == nil {
return nil, ErrHeaderNotFound
}
data := make([]byte, r.Size())
if _, err := r.MarshalTo(data); err != nil {
return nil, err
}
return data, nil
}
// ReadSignedData copies marshaled payload of the Put request to passed buffer.
//
// If payload is nil, ErrHeaderNotFound returns.
func (m PutRequest) ReadSignedData(p []byte) error {
r := m.GetR()
if r == nil {
return ErrHeaderNotFound
}
_, err := r.MarshalTo(p)
return err
}
// SignedDataSize returns the size of payload of the Put request.
//
// If payload is nil, -1 returns.
func (m PutRequest) SignedDataSize() int {
r := m.GetR()
if r == nil {
return -1
}
return r.Size()
}
// SignedData returns marshaled Address field.
//
// Resulting error is always nil.
func (m GetRequest) SignedData() ([]byte, error) {
addr := m.GetAddress()
return append(
addr.CID.Bytes(),
addr.ObjectID.Bytes()...,
), nil
}
// ReadSignedData copies marshaled Address field to passed buffer.
//
// If the buffer size is insufficient, io.ErrUnexpectedEOF returns.
func (m GetRequest) ReadSignedData(p []byte) error {
addr := m.GetAddress()
if len(p) < addr.CID.Size()+addr.ObjectID.Size() {
return io.ErrUnexpectedEOF
}
off := copy(p, addr.CID.Bytes())
copy(p[off:], addr.ObjectID.Bytes())
return nil
}
// SignedDataSize returns the size of object address.
func (m GetRequest) SignedDataSize() int {
addr := m.GetAddress()
return addr.CID.Size() + addr.ObjectID.Size()
}