/
signed_message.go
78 lines (64 loc) · 1.53 KB
/
signed_message.go
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package types
import (
"bytes"
"github.com/filecoin-project/go-state-types/abi"
"github.com/filecoin-project/go-state-types/crypto"
block "github.com/ipfs/go-block-format"
"github.com/ipfs/go-cid"
cbg "github.com/whyrusleeping/cbor-gen"
"io"
)
type SignedMessage struct {
Message *Message `json:"Message"`
Signature *crypto.Signature `json:"Signature"`
}
func (sm *SignedMessage) Cid() cid.Cid {
if sm.Signature.Type == crypto.SigTypeBLS {
return sm.Message.Cid()
}
sb, err := sm.ToStorageBlock()
if err != nil {
panic(err)
}
return sb.Cid()
}
func (sm *SignedMessage) ToStorageBlock() (block.Block, error) {
if sm.Signature.Type == crypto.SigTypeBLS {
return sm.Message.ToStorageBlock()
}
data, err := sm.Serialize()
if err != nil {
return nil, err
}
c, err := abi.CidBuilder.Sum(data)
if err != nil {
return nil, err
}
return block.NewBlockWithCid(data, c)
}
func (sm *SignedMessage) Serialize() ([]byte, error) {
buf := new(bytes.Buffer)
if err := sm.MarshalCBOR(buf); err != nil {
return nil, err
}
return buf.Bytes(), nil
}
var lengthBufSignedMessage = []byte{130}
func (t *SignedMessage) MarshalCBOR(w io.Writer) error {
if t == nil {
_, err := w.Write(cbg.CborNull)
return err
}
if _, err := w.Write(lengthBufSignedMessage); err != nil {
return err
}
// t.Message (types.Message) (struct)
if err := t.Message.MarshalCBOR(w); err != nil {
return err
}
// t.Signature (crypto.Signature) (struct)
if err := t.Signature.MarshalCBOR(w); err != nil {
return err
}
return nil
}