-
Notifications
You must be signed in to change notification settings - Fork 2
/
contract.go
224 lines (186 loc) · 7.24 KB
/
contract.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
package blockchain
import (
"encoding/hex"
"fmt"
"math/big"
"github.com/korthochain/korthochain/pkg/block"
"github.com/korthochain/korthochain/pkg/contract/evm"
"github.com/korthochain/korthochain/pkg/logger"
"github.com/korthochain/korthochain/pkg/storage/store"
"github.com/korthochain/korthochain/pkg/address"
"github.com/ethereum/go-ethereum/common"
evmtypes "github.com/ethereum/go-ethereum/core/types"
"github.com/korthochain/korthochain/pkg/transaction"
"go.uber.org/zap"
)
//binding kto address and eth address
func (bc *Blockchain) bindingAddress(DBTransaction store.Transaction, ethaddr, ktoaddr []byte) error {
return DBTransaction.Mset(BindingKey, ethaddr, ktoaddr)
}
//get bingding kto address by eth address
func (bc *Blockchain) GetBindingKtoAddress(ethAddr string) (address.Address, error) {
bc.mu.Lock()
defer bc.mu.Unlock()
DBTransaction := bc.db.NewTransaction()
defer DBTransaction.Cancel()
return getBindingKtoAddress(DBTransaction, ethAddr)
}
func getBindingKtoAddress(DBTransaction store.Transaction, ethAddr string) (address.Address, error) {
data, err := DBTransaction.Mget(BindingKey, common.HexToAddress(ethAddr).Bytes())
if err != nil {
if err.Error() != "NotExist" {
logger.Error("GetBindingKtoAddress error", zap.String("ethaddr", ethAddr), zap.Error(err))
}
return address.Address{}, err
}
return address.NewFromBytes(data)
}
//get bingding eth address by kto address
func (bc *Blockchain) GetBindingEthAddress(ktoAddr address.Address) (string, error) {
bc.mu.Lock()
defer bc.mu.Unlock()
DBTransaction := bc.db.NewTransaction()
defer DBTransaction.Cancel()
ethAddr, err := DBTransaction.Mget(BindingKey, ktoAddr.Bytes())
if err != nil {
return "", err
}
return common.BytesToAddress(ethAddr).String(), nil
}
//call contract with out transaction
func (bc *Blockchain) CallSmartContract(contractAddr, origin, callInput, value string) (string, string, error) {
bc.mu.Lock()
defer bc.mu.Unlock()
bc.evm = evm.NewEvm(bc.sdb, bc.ChainCfg.ChainId, bc.ChainCfg.GasLimit, bc.ChainCfg.GasPrice)
snapshotId := bc.evm.GetSnapshot()
defer func() {
bc.evm.RevertToSnapshot(snapshotId)
}()
{
//set block into into evm
maxH, err := bc.getMaxBlockHeight()
if err != nil {
logger.Error("Failed to getMaxBlockHeight", zap.Error(err))
return "", "", err
}
if maxH > 0 {
currB, err := bc.getBlockByHeight(maxH)
if err != nil {
logger.Error("Failed to getBlockByHeight", zap.Error(err))
return "", "", err
}
miner, _ := currB.Miner.NewCommonAddr()
bc.evm.SetBlockInfo(currB.Height, currB.Timestamp, miner, currB.Difficulty)
}
}
vl := big.NewInt(0)
if len(value) > 0 {
if res, ok := big.NewInt(0).SetString(value, 16); ok {
vl = res.Div(res, Uint64ToBigInt(ETHDECIMAL))
}
}
bc.evm.SetConfig(vl, Uint64ToBigInt(bc.ChainCfg.GasPrice), MAXGASLIMIT, common.HexToAddress(origin))
if len(Check0x(callInput)) > 0 && len(contractAddr) > 0 {
ret, gasleft, err := bc.evm.Call(common.HexToAddress(contractAddr), common.HexToAddress(origin), common.Hex2Bytes(Check0x(callInput)))
if err != nil {
logger.Info("call contract", zap.String("ret", common.Bytes2Hex(ret)), zap.Error(err))
return common.Bytes2Hex(ret), "", err
}
gasUsed := MAXGASLIMIT - gasleft
if gasUsed < MINGASLIMIT {
gasUsed = MINGASLIMIT
}
return common.Bytes2Hex(ret), fmt.Sprintf("%X", gasUsed), nil
}
logger.Error("failed to Call", zap.Error(fmt.Errorf("wrong input[%v] or contractaddr[%v]", callInput, contractAddr)))
return "", "", fmt.Errorf("wrong input[%v] or contractaddr[%v]", callInput, contractAddr)
}
//get contract code by address
func (bc *Blockchain) GetCode(contractAddr string) []byte {
bc.mu.RLock()
defer bc.mu.RUnlock()
return bc.sdb.GetCode(common.HexToAddress(contractAddr))
}
//get contract code by address
func (bc *Blockchain) SetCode(contractAddr common.Address, code []byte) {
bc.mu.RLock()
defer bc.mu.RUnlock()
bc.sdb.SetCode(contractAddr, code)
return
}
//get evm logs
func (bc *Blockchain) GetLogs() []*evmtypes.Log {
bc.mu.RLock()
defer bc.mu.RUnlock()
return bc.evm.Logs()
}
//handle contract transaction
func (bc *Blockchain) handleContractTransaction(block *block.Block, DBTransaction store.Transaction, tx *transaction.FinishedTransaction, index int) (uint64, error) {
var gasLeft, gasLimit uint64
gasLimit = tx.Transaction.GasLimit * tx.Transaction.GasPrice
if gasLimit == 0 {
gasLimit = MAXGASLIMIT
}
evmC, err := transaction.DecodeEvmData(tx.Input)
if err != nil {
logger.Error("DecodeEvmData input error:", zap.Error(err))
return gasLeft, err
}
eth_tx, err := transaction.DecodeEthData(evmC.EthData)
if err != nil {
logger.Error("DecodeEvmData input error:", zap.Error(err))
return gasLeft, err
}
logger.Info("handleContractTransaction info", zap.Uint64("eth_tx gasprice", eth_tx.GasPrice().Uint64()), zap.Uint64("gaslimit", gasLimit), zap.Uint64("tx.gasprice", tx.GasPrice),
zap.String("origin", evmC.Origin.Hex()), zap.Uint64("nonce", tx.Transaction.Nonce), zap.Uint64("eth_tx.Value()", eth_tx.Value().Uint64()))
TxValue := eth_tx.Value().Div(eth_tx.Value(), Uint64ToBigInt(ETHDECIMAL))
bc.evm.SetConfig(TxValue, Uint64ToBigInt(tx.GasPrice), gasLimit, evmC.Origin)
bc.evm.Prepare(common.BytesToHash(tx.Hash()), common.BytesToHash(block.Hash), index)
switch evmC.Operation {
case "create", "Create":
bc.evm.SetNonce(evmC.Origin, tx.Transaction.Nonce)
ret, contractAddr, left, err := bc.evm.Create(evmC.CreateCode, evmC.Origin)
gasLeft = left
if gasLeft < MINGASLIMIT {
gasLeft = MINGASLIMIT
}
if err != nil {
logger.Error("faile to create contract", zap.Error(fmt.Errorf("hash:%v,gasLeft:%v,error:%v", hex.EncodeToString(tx.Hash()), gasLeft, err))) //zap.String("name", evmC.ContractName), zap.Uint64("gasLeft", gasLeft), zap.Error(callErr))
evmC.Ret = common.Bytes2Hex(ret)
evmC.Status = false
return gasLeft, nil
}
evmC.ContractAddr = contractAddr
logger.Info("Create contract successfully", zap.String("contract address:", evmC.ContractAddr.Hex()), zap.Uint64("gasLeft", gasLeft), zap.String("ret:", evmC.Ret), zap.String("origin", evmC.Origin.Hex()))
case "call", "Call":
bc.evm.SetNonce(evmC.Origin, tx.Transaction.Nonce+1)
ret, left, err := bc.evm.Call(evmC.ContractAddr, evmC.Origin, evmC.CallInput)
gasLeft = left
if gasLeft < MINGASLIMIT {
gasLeft = MINGASLIMIT
}
if err != nil {
logger.Error("faile to Call", zap.String("hash", hex.EncodeToString(tx.Hash())), zap.Uint64("gasLeft", gasLeft), zap.Error(err))
evmC.Ret = common.Bytes2Hex(ret)
evmC.Status = false
return gasLeft, nil
}
evmC.Ret = common.Bytes2Hex(ret)
logger.Info("Call contract successfully", zap.String("contract address:", evmC.ContractAddr.Hex()), zap.Uint64("gasLeft", gasLeft), zap.String("ret:", evmC.Ret), zap.String("origin", evmC.Origin.Hex()))
}
evmC.Status = true
evmC.Logs = bc.evm.GetLogs(common.BytesToHash(tx.Hash()), common.BytesToHash(block.Hash))
input, err := transaction.EncodeEvmData(evmC)
if err != nil {
logger.Error("EncodeEvmData error", zap.Error(err))
return gasLeft, nil
}
tx.Input = input
return gasLeft, nil
}
//get storage at address
func (bc *Blockchain) GetStorageAt(addr, hash string) common.Hash {
bc.mu.RLock()
defer bc.mu.RUnlock()
return bc.evm.GetStorageAt(common.HexToAddress(addr), common.HexToHash(hash))
}