neoneo-go/pkg/core/transaction/witness.go

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package transaction
import (
"encoding/binary"
"encoding/hex"
"encoding/json"
"io"
"github.com/CityOfZion/neo-go/pkg/util"
)
// Witness contains 2 scripts.
type Witness struct {
InvocationScript []byte
VerificationScript []byte
}
// DecodeBinary implements the payload interface.
func (w *Witness) DecodeBinary(r io.Reader) error {
lenb := util.ReadVarUint(r)
w.InvocationScript = make([]byte, lenb)
if err := binary.Read(r, binary.LittleEndian, w.InvocationScript); err != nil {
return err
}
lenb = util.ReadVarUint(r)
w.VerificationScript = make([]byte, lenb)
return binary.Read(r, binary.LittleEndian, w.VerificationScript)
}
// EncodeBinary implements the payload interface.
func (w *Witness) EncodeBinary(writer io.Writer) error {
if err := util.WriteVarUint(writer, uint64(len(w.InvocationScript))); err != nil {
return err
}
if err := binary.Write(writer, binary.LittleEndian, w.InvocationScript); err != nil {
return err
}
if err := util.WriteVarUint(writer, uint64(len(w.VerificationScript))); err != nil {
return err
}
return binary.Write(writer, binary.LittleEndian, w.VerificationScript)
}
// MarshalJSON implements the json marshaller interface.
func (w *Witness) MarshalJSON() ([]byte, error) {
data := map[string]string{
"invocation": hex.EncodeToString(w.InvocationScript),
"verification": hex.EncodeToString(w.VerificationScript),
}
return json.Marshal(data)
}
Implemented rpc server method GetRawTransaction (#135) * Added utility function GetVarSize * 1) Added Size method: this implied that Fixed8 implements now the serializable interface. 2) Added few arithmetic operation (Add, Sub, div): this will be used to calculated networkfeeand feePerByte. Changed return value of the Value() method to int instead of int64. Modified fixed8_test accordingly. * Implemented Size or MarshalJSON method. - Structs accepting the Size method implement the serializable interface. - Structs accepting the MarshalJSON method implements the customized json marshaller interface. * Added fee calculation * Implemented rcp server method GetRawTransaction * Updated Tests * Fixed: 1) NewFixed8 will accept as input int64 2) race condition affecting configDeafault, blockchainDefault * Simplified Size calculation * 1) Removed global variable blockchainDefault, configDefault 2) Extended Blockchainer interface to include the methods: References, FeePerByte, SystemFee, NetworkFee 3) Deleted fee_test.go, fee.go. Moved corresponding methods to blockchain_test.go and blockchain.go respectively 4) Amended tx_raw_output.go * Simplified GetVarSize Method * Replaced ValueAtAndType with ValueWithType * Cosmetic changes + Added test case getrawtransaction_7 * Clean up Print statement * Filled up keys * Aligned verbose logic with the C#-neo implementation * Implemented @Kim requests Refactor server_test.go * Small fixes * Fixed verbose logic Added more tests Cosmetic changes * Replaced assert.NoError with require.NoError * Fixed tests by adding context.Background() as argument * Fixed tests
2019-02-20 17:39:32 +00:00
// Size returns the size in bytes of the Witness.
func (w *Witness) Size() int {
return util.GetVarSize(w.InvocationScript) + util.GetVarSize(w.VerificationScript)
}
// ScriptHash returns the hash of the VerificationScript.
func (w Witness) ScriptHash() (util.Uint160, error) {
return util.Uint160FromScript(w.VerificationScript)
}