object: implement signing payload methods on GetRangeHashRequest message

This commit is contained in:
Leonard Lyubich 2020-05-06 14:58:29 +03:00
parent e784206032
commit 84671cd4aa
2 changed files with 104 additions and 0 deletions

View file

@ -1,6 +1,7 @@
package object
import (
"encoding/binary"
"io"
)
@ -161,6 +162,81 @@ 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()
}

View file

@ -108,6 +108,34 @@ func TestSignVerifyRequests(t *testing.T) {
},
},
},
{ // GetRangeHashRequest
constructor: func() sigType {
return &GetRangeHashRequest{
Ranges: []Range{{}},
Salt: []byte{1, 2, 3},
}
},
payloadCorrupt: []func(sigType){
func(s sigType) {
s.(*GetRangeHashRequest).Address.CID[0]++
},
func(s sigType) {
s.(*GetRangeHashRequest).Address.ObjectID[0]++
},
func(s sigType) {
s.(*GetRangeHashRequest).Salt[0]++
},
func(s sigType) {
s.(*GetRangeHashRequest).Ranges[0].Length++
},
func(s sigType) {
s.(*GetRangeHashRequest).Ranges[0].Offset++
},
func(s sigType) {
s.(*GetRangeHashRequest).Ranges = nil
},
},
},
}
for _, item := range items {