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vault.go
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vault.go
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// Copyright 2019 The go-smilo Authors
// Copyright 2015 The go-ethereum Authors
// This file is part of the go-ethereum library.
//
// The go-ethereum library is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// The go-ethereum library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
// Package ethapi implements the general Ethereum API functions.
package ethapi
import (
"context"
"encoding/hex"
"fmt"
"math/big"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/common/hexutil"
"github.com/ethereum/go-ethereum/log"
"go-smilo/src/blockchain/smilobft/rpc"
"go-smilo/src/blockchain/smilobft/core/vm"
"go-smilo/src/blockchain/smilobft/vault"
)
// GetSmiloPayload returns the contents of a private transaction
func (s *PublicBlockChainAPI) GetSmiloPayload(digestHex string) (string, error) {
if vault.VaultInstance == nil {
return "", fmt.Errorf("vault is not enabled")
}
if len(digestHex) < 3 {
return "", fmt.Errorf("invalid digest hex, len=%d", len(digestHex))
}
if digestHex[:2] == "0x" {
digestHex = digestHex[2:]
}
b, err := hex.DecodeString(digestHex)
if err != nil {
return "", err
}
if len(b) != 64 {
return "", fmt.Errorf("expected a Smilo digest of length 64, but got %d", len(b))
}
data, err := vault.VaultInstance.Get(b)
if err != nil {
return "", err
}
return fmt.Sprintf("0x%x", data), nil
}
// GetSmiloPay returns the smiloPay from the given address and blockNum
func (s *PublicBlockChainAPI) GetSmiloPay(ctx context.Context, address common.Address, blockNum rpc.BlockNumber) (*big.Int, error) {
state, _, err := s.b.StateAndHeaderByNumber(ctx, blockNum)
if state == nil || err != nil {
return nil, err
}
header, err := s.b.HeaderByNumber(context.Background(), rpc.LatestBlockNumber)
if err != nil {
log.Error("PublicBlockChainAPI.GetSmiloPay, ", address, blockNum, err)
return nil, err
}
b := state.GetSmiloPay(address, header.Number)
return b, nil
}
// SendVaultTransaction will POST data to local blackbox node if data is valid; used by PublicTransactionPoolAPI.SendTransaction
func SendVaultTransactionWithExtraCheck(args SendTxArgs) (d hexutil.Bytes, err error) {
if vault.VaultInstance == nil {
return d, fmt.Errorf("failed to get VaultInstance, is Vault node running ?? ")
} else if args.Value != nil && args.Value.ToInt().Sign() != 0 {
return d, vm.ErrReadOnlyValueTransfer
}
var data []byte
if args.Data != nil {
data = []byte(*args.Data)
} else {
log.Info("args.data is nil")
}
//Send transaction Blackbox node
if len(data) > 0 {
log.Info("sending vault tx", "data", fmt.Sprintf("%x", data), "vaultfrom", args.VaultFrom, "sharedwith", args.SharedWith)
data, err = vault.VaultInstance.Post(data, args.VaultFrom, args.SharedWith)
log.Info("sent vault tx", "data", fmt.Sprintf("%x", data), "vaultfrom", args.VaultFrom, "sharedwith", args.SharedWith)
if err != nil {
return nil, err
}
}
d = hexutil.Bytes(data)
return d, nil
}
// SendVaultTransaction will POST data to local blackbox node if data is valid; used by PublicTransactionPoolAPI.SendTransaction
func SendVaultTransaction(args SendTxArgs) (d hexutil.Bytes, err error) {
if args.Value != nil && args.Value.ToInt().Sign() != 0 {
return d, vm.ErrReadOnlyValueTransfer
}
data := []byte(*args.Data)
if len(data) > 0 {
log.Info("sending vault tx", "data", fmt.Sprintf("%x", data), "VaultFrom", args.VaultFrom, "SharedWith", args.SharedWith)
data, err := vault.VaultInstance.Post(data, args.VaultFrom, args.SharedWith)
log.Info("sent vault tx", "data", fmt.Sprintf("%x", data), "VaultFrom", args.VaultFrom, "SharedWith", args.SharedWith)
if err != nil {
return nil, err
}
}
d = hexutil.Bytes(data)
return d, nil
}