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76 lines
1.6 KiB
76 lines
1.6 KiB
package tx
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import (
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crypto "github.com/tendermint/go-crypto"
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keys "github.com/tendermint/go-crypto/keys"
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data "github.com/tendermint/go-wire/data"
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)
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const (
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typeOneSig = byte(0x01)
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typeMultiSig = byte(0x02)
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nameOneSig = "sig"
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nameMultiSig = "multi"
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)
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var _ keys.Signable = Sig{}
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var TxMapper data.Mapper
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func init() {
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TxMapper = data.NewMapper(Sig{}).
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RegisterImplementation(&OneSig{}, nameOneSig, typeOneSig).
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RegisterImplementation(&MultiSig{}, nameMultiSig, typeMultiSig)
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}
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/*
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DO NOT USE this interface.
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It is public by necessity but should never be used directly
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outside of this package.
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Only use Sig, never SigInner
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*/
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type SigInner interface {
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SignBytes() []byte
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Sign(pubkey crypto.PubKey, sig crypto.Signature) error
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Signers() ([]crypto.PubKey, error)
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}
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// Sig is what is exported, and handles serialization
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type Sig struct {
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SigInner
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}
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// TxBytes
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func (s Sig) TxBytes() ([]byte, error) {
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return data.ToWire(s)
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}
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// WrapSig goes from concrete implementation to "interface" struct
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func WrapSig(pk SigInner) Sig {
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if wrap, ok := pk.(Sig); ok {
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pk = wrap.Unwrap()
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}
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return Sig{pk}
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}
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// Unwrap recovers the concrete interface safely (regardless of levels of embeds)
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func (p Sig) Unwrap() SigInner {
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pk := p.SigInner
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for wrap, ok := pk.(Sig); ok; wrap, ok = pk.(Sig) {
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pk = wrap.SigInner
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}
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return pk
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}
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func (p Sig) MarshalJSON() ([]byte, error) {
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return TxMapper.ToJSON(p.Unwrap())
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}
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func (p *Sig) UnmarshalJSON(data []byte) (err error) {
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parsed, err := TxMapper.FromJSON(data)
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if err == nil && parsed != nil {
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p.SigInner = parsed.(SigInner)
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}
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return
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}
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