frostfs-api-go/object/sign.go

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package object
import (
"encoding/binary"
"io"
)
// SignedData returns payload bytes of the request.
//
// If payload is nil, ErrHeaderNotFound returns.
func (m PutRequest) SignedData() ([]byte, error) {
sz := m.SignedDataSize()
if sz < 0 {
return nil, ErrHeaderNotFound
}
data := make([]byte, sz)
return data, m.ReadSignedData(data)
}
// ReadSignedData copies payload bytes to passed buffer.
//
// If the buffer size is insufficient, io.ErrUnexpectedEOF 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 payload bytes of the request.
func (m GetRequest) SignedData() ([]byte, error) {
data := make([]byte, m.SignedDataSize())
return data, m.ReadSignedData(data)
}
// ReadSignedData copies payload bytes 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) < m.SignedDataSize() {
return io.ErrUnexpectedEOF
}
off := copy(p, addr.CID.Bytes())
copy(p[off:], addr.ObjectID.Bytes())
return nil
}
// SignedDataSize returns payload size of the request.
func (m GetRequest) SignedDataSize() int {
return addressSize(m.GetAddress())
}
// SignedData returns payload bytes of the request.
func (m HeadRequest) SignedData() ([]byte, error) {
data := make([]byte, m.SignedDataSize())
return data, m.ReadSignedData(data)
}
// ReadSignedData copies payload bytes to passed buffer.
//
// If the buffer size is insufficient, io.ErrUnexpectedEOF returns.
func (m HeadRequest) ReadSignedData(p []byte) error {
if len(p) < m.SignedDataSize() {
return io.ErrUnexpectedEOF
}
if m.GetFullHeaders() {
p[0] = 1
}
off := 1 + copy(p[1:], m.Address.CID.Bytes())
copy(p[off:], m.Address.ObjectID.Bytes())
return nil
}
// SignedDataSize returns payload size of the request.
func (m HeadRequest) SignedDataSize() int {
return addressSize(m.Address) + 1
}
// SignedData returns payload bytes of the request.
func (m DeleteRequest) SignedData() ([]byte, error) {
data := make([]byte, m.SignedDataSize())
return data, m.ReadSignedData(data)
}
// ReadSignedData copies payload bytes to passed buffer.
//
// If the buffer size is insufficient, io.ErrUnexpectedEOF returns.
func (m DeleteRequest) ReadSignedData(p []byte) error {
if len(p) < m.SignedDataSize() {
return io.ErrUnexpectedEOF
}
off := copy(p, m.OwnerID.Bytes())
copy(p[off:], addressBytes(m.Address))
return nil
}
// SignedDataSize returns payload size of the request.
func (m DeleteRequest) SignedDataSize() int {
return m.OwnerID.Size() + addressSize(m.Address)
}
// SignedData returns payload bytes of the request.
func (m GetRangeRequest) SignedData() ([]byte, error) {
data := make([]byte, m.SignedDataSize())
return data, m.ReadSignedData(data)
}
// ReadSignedData copies payload bytes to passed buffer.
//
// If the buffer size is insufficient, io.ErrUnexpectedEOF returns.
func (m GetRangeRequest) ReadSignedData(p []byte) error {
if len(p) < m.SignedDataSize() {
return io.ErrUnexpectedEOF
}
n, err := (&m.Range).MarshalTo(p)
if err != nil {
return err
}
copy(p[n:], addressBytes(m.GetAddress()))
return nil
}
// SignedDataSize returns payload size of the request.
func (m GetRangeRequest) SignedDataSize() int {
return (&m.Range).Size() + addressSize(m.GetAddress())
}
// SignedData returns payload bytes of the request.
func (m GetRangeHashRequest) SignedData() ([]byte, error) {
data := make([]byte, m.SignedDataSize())
return data, m.ReadSignedData(data)
}
// ReadSignedData copies payload bytes to passed buffer.
//
// If the buffer size is insufficient, io.ErrUnexpectedEOF returns.
func (m GetRangeHashRequest) ReadSignedData(p []byte) error {
if len(p) < m.SignedDataSize() {
return io.ErrUnexpectedEOF
}
var off int
off += copy(p[off:], addressBytes(m.GetAddress()))
off += copy(p[off:], sliceBytes(m.GetSalt()))
copy(p[off:], rangeSetBytes(m.GetRanges()))
return nil
}
// SignedDataSize returns payload size of the request.
func (m GetRangeHashRequest) SignedDataSize() int {
var sz int
sz += addressSize(m.GetAddress())
sz += rangeSetSize(m.GetRanges())
sz += sliceSize(m.GetSalt())
return sz
}
func sliceSize(v []byte) int {
return 4 + len(v)
}
func sliceBytes(v []byte) []byte {
data := make([]byte, sliceSize(v))
binary.BigEndian.PutUint32(data, uint32(len(v)))
copy(data[4:], v)
return data
}
func rangeSetSize(rs []Range) int {
return 4 + len(rs)*16 // two uint64 fields
}
func rangeSetBytes(rs []Range) []byte {
data := make([]byte, rangeSetSize(rs))
binary.BigEndian.PutUint32(data, uint32(len(rs)))
off := 4
for i := range rs {
binary.BigEndian.PutUint64(data[off:], rs[i].Offset)
off += 8
binary.BigEndian.PutUint64(data[off:], rs[i].Length)
off += 8
}
return data
}
func addressSize(addr Address) int {
return addr.CID.Size() + addr.ObjectID.Size()
}
func addressBytes(addr Address) []byte {
return append(addr.CID.Bytes(), addr.ObjectID.Bytes()...)
}