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handler.go
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handler.go
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package keeper
import (
"fmt"
sdk "github.com/ci123chain/ci123chain/pkg/abci/types"
"github.com/ci123chain/ci123chain/pkg/app/types"
"github.com/ci123chain/ci123chain/pkg/util"
evm "github.com/ci123chain/ci123chain/pkg/vm/evmtypes"
wasm "github.com/ci123chain/ci123chain/pkg/vm/wasmtypes"
"github.com/ethereum/go-ethereum/common"
"github.com/pkg/errors"
tmtypes "github.com/tendermint/tendermint/types"
"math/big"
"strings"
)
const (
InstantiateFuncName = "init"
)
func NewHandler(k *Keeper) sdk.Handler {
return func(ctx sdk.Context, msg sdk.Msg) (*sdk.Result, error) {
ctx = ctx.WithEventManager(sdk.NewEventManager())
switch tx := msg.(type) {
case *wasm.MsgUploadContract:
return handleMsgUploadContract(ctx, *k, *tx)
case *wasm.MsgInstantiateContract:
return handleMsgInstantiateContract(ctx, *k, *tx)
case *wasm.MsgExecuteContract:
return handleMsgExecuteContract(ctx, *k, *tx)
case *wasm.MsgMigrateContract:
return handleMsgMigrateContract(ctx, *k, *tx)
case *evm.MsgEvmTx:
return handleMsgEvmTx(ctx, k, *tx)
case types.MsgEthereumTx:
return handleMsgEthereumTx(ctx, k, tx)
default:
errMsg := fmt.Sprintf("unrecognized supply message type: %T", tx)
return nil, errors.New(errMsg)
}
}
}
func handleMsgUploadContract(ctx sdk.Context, k Keeper, msg wasm.MsgUploadContract) (res *sdk.Result, err error) {
codeHash, err := k.Upload(ctx, msg.Code, msg.FromAddress)
if err != nil {
return nil, err
}
res = &sdk.Result{
Data: codeHash,
Events: ctx.EventManager().Events(),
}
return
}
func handleMsgInstantiateContract(ctx sdk.Context, k Keeper, msg wasm.MsgInstantiateContract) (res *sdk.Result, err error) {
gasLimit := ctx.GasLimit()
gasWanted := gasLimit - ctx.GasMeter().GasConsumed()
args, err := wasm.CallData2Input(msg.Args)
if err != nil {
return nil, err
}
contractAddr, err := k.Instantiate(ctx, msg.CodeHash, msg.FromAddress, args, msg.Name, msg.Version, msg.Author, msg.Email, msg.Describe, wasm.EmptyAddress, gasWanted)
if err != nil {
return nil, err
}
res = &sdk.Result{
Data: []byte(fmt.Sprintf("%s", contractAddr.String())),
Events: ctx.EventManager().Events(),
}
return
}
func handleMsgExecuteContract(ctx sdk.Context, k Keeper, msg wasm.MsgExecuteContract) (res *sdk.Result, err error){
gasLimit := ctx.GasLimit()
gasWanted := gasLimit - ctx.GasMeter().GasConsumed()
args, err := wasm.CallData2Input(msg.Args)
if err != nil {
return nil, err
}
result, Err := k.Execute(ctx, msg.Contract, msg.FromAddress, args, gasWanted)
if Err != nil {
return nil, Err
}
res = &result
res.Events = ctx.EventManager().Events()
return
}
func handleMsgMigrateContract(ctx sdk.Context, k Keeper, msg wasm.MsgMigrateContract) (res *sdk.Result, err error) {
gasLimit := ctx.GasLimit()
gasWanted := gasLimit - ctx.GasMeter().GasConsumed()
args, err := wasm.CallData2Input(msg.Args)
if err != nil {
return nil, err
}
contractAddr, err := k.Migrate(ctx, msg.CodeHash, msg.FromAddress, msg.Contract, args, msg.Name, msg.Version, msg.Author, msg.Email, msg.Describe, gasWanted)
if err != nil {
return nil, err
}
res = &sdk.Result{
Data: []byte(fmt.Sprintf("%s", contractAddr.String())),
Events: ctx.EventManager().Events(),
}
return
}
// handleMsgEvmTx handles an Ethereum specific tx
func handleMsgEvmTx(ctx sdk.Context, k *Keeper, msg evm.MsgEvmTx) (*sdk.Result, error) {
// parse the chainID from a string to a base-10 integer
executionResult, err := k.EvmTxExec(ctx, msg)
if err != nil {
return nil, err
}
sender := common.BytesToAddress(msg.GetFromAddress().Bytes())
ctx.EventManager().EmitEvents(sdk.Events{
sdk.NewEvent(
evm.EventTypeEvmTx,
sdk.NewAttribute([]byte(sdk.AttributeKeyAmount), []byte(msg.Data.Amount.String())),
),
sdk.NewEvent(
sdk.EventTypeMessage,
sdk.NewAttribute([]byte(sdk.AttributeKeyModule), []byte(evm.AttributeValueCategory)),
sdk.NewAttribute([]byte(sdk.AttributeKeySender), []byte(sender.String())),
),
})
if msg.Data.Recipient != nil {
ctx.EventManager().EmitEvent(
sdk.NewEvent(
evm.EventTypeEvmTx,
sdk.NewAttribute([]byte(evm.AttributeKeyRecipient), []byte(msg.Data.Recipient.String())),
),
)
}
var resultData evm.ResultData
resultData, err = evm.DecodeResultData(executionResult.VMResult().Data)
if err != nil {
return nil, err
}
logAddress := make(map[string]struct{})
for _, log := range resultData.Logs {
if _, ok := logAddress[log.Address.String()]; !ok {
logAddress[log.Address.String()] = struct{}{}
}
}
var eventLogAddress sdk.Events
for addr, _ := range logAddress {
eventLogAddress = append(eventLogAddress, sdk.NewEvent(
evm.EventTypeEvmTx,
sdk.NewAttribute([]byte(evm.AttributeKeyContractAddress), []byte(addr)),
))
}
if len(eventLogAddress) != 0 {
ctx.EventManager().EmitEvents(eventLogAddress)
}
// set the events to the result
result := executionResult.VMResult()
result.Events = ctx.EventManager().Events()
return result, err
}
func handleMsgEthereumTx(ctx sdk.Context, k *Keeper, msg types.MsgEthereumTx) (*sdk.Result, error) {
// parse the chainID from a string to a base-10 integer
chainIDEpoch := big.NewInt(util.CHAINID)
// Verify signature and retrieve sender address
sender, err := msg.VerifySig(chainIDEpoch)
if err != nil {
k.Logger(ctx).Info("Handler evm invalid tx signature")
return nil, err
}
k.Logger(ctx).Info("Handler evm tx", "sender", sender.String())
if msg.Data.Recipient != nil {
k.Logger(ctx).Info("Handler evm tx", "to", msg.Data.Recipient.String())
}
txHash := tmtypes.Tx(ctx.TxBytes()).Hash()
ethHash := common.BytesToHash(txHash)
st := evm.StateTransition{
AccountNonce: msg.Data.AccountNonce,
Price: msg.Data.Price,
GasLimit: msg.Data.GasLimit,
Recipient: msg.Data.Recipient,
Amount: msg.Data.Amount,
Payload: msg.Data.Payload,
Csdb: k.CommitStateDB.WithContext(ctx),
ChainID: chainIDEpoch,
TxHash: ðHash,
Sender: sender,
Simulate: ctx.IsCheckTx(),
}
// since the txCount is used by the stateDB, and a simulated tx is run only on the node it's submitted to,
// then this will cause the txCount/stateDB of the node that ran the simulated tx to be different than the
// other nodes, causing a consensus error
if !st.Simulate {
// Prepare db for logs
// TODO: block hash
k.CommitStateDB.Prepare(ethHash, common.Hash{}, k.TxCount)
k.TxCount++
}
config, found := k.GetChainConfig(ctx)
if !found {
return nil, errors.New("chain configs not found")
}
executionResult, err := st.TransitionDb(ctx, config)
if err != nil {
k.Logger(ctx).Warn("Handler evm TransitionDb ", "err", err.Error())
return nil, errors.New(fmt.Sprintf("err transitionDb: %s", err.Error()))
}
if !st.Simulate {
// update block bloom filter
k.Bloom.Or(k.Bloom, executionResult.Bloom)
// update transaction logs in KVStore
//err = k.SetLogs(ctx, common.BytesToHash(txHash), executionResult.Logs)
//if err != nil {
// k.Logger(ctx).Error("Handler evm SetLogs ", "err", err.Error())
// panic(err)
//}
}
// log successful execution
k.Logger(ctx).Info(executionResult.Result.Log)
ctx.EventManager().EmitEvents(sdk.Events{
sdk.NewEvent(
evm.EventTypeEvmTx,
sdk.NewAttribute([]byte(sdk.AttributeKeyAmount), []byte(msg.Data.Amount.String())),
),
sdk.NewEvent(
sdk.EventTypeMessage,
sdk.NewAttribute([]byte(sdk.AttributeKeyModule), []byte(evm.AttributeValueCategory)),
sdk.NewAttribute([]byte(sdk.AttributeKeySender), []byte(sender.String())),
),
})
if msg.Data.Recipient != nil {
ctx.EventManager().EmitEvent(
sdk.NewEvent(
evm.EventTypeEvmTx,
sdk.NewAttribute([]byte(evm.AttributeKeyRecipient), []byte(msg.Data.Recipient.String())),
),
)
}
var resultData evm.ResultData
resultData, err = evm.DecodeResultData(executionResult.Result.Data)
if err != nil {
return nil, err
}
logAddress := make(map[string]struct{})
for _, log := range resultData.Logs {
if _, ok := logAddress[log.Address.String()]; !ok {
logAddress[strings.ToLower(log.Address.String())] = struct{}{}
}
}
var eventLogAddress sdk.Events
for addr, _ := range logAddress {
eventLogAddress = append(eventLogAddress, sdk.NewEvent(
evm.EventTypeEvmTx,
sdk.NewAttribute([]byte(evm.AttributeKeyContractAddress), []byte(addr)),
))
}
if len(eventLogAddress) != 0 {
ctx.EventManager().EmitEvents(eventLogAddress)
}
// set the events to the result
executionResult.Result.Events = ctx.EventManager().Events()
return executionResult.Result, nil
}