84 lines
2.1 KiB
Go
84 lines
2.1 KiB
Go
package evm
|
|
|
|
import (
|
|
"fmt"
|
|
"runtime/debug"
|
|
|
|
log "github.com/xlab/suplog"
|
|
|
|
sdk "github.com/cosmos/cosmos-sdk/types"
|
|
sdkerrors "github.com/cosmos/cosmos-sdk/types/errors"
|
|
ethcmn "github.com/ethereum/go-ethereum/common"
|
|
|
|
"github.com/cosmos/ethermint/x/evm/keeper"
|
|
"github.com/cosmos/ethermint/x/evm/types"
|
|
)
|
|
|
|
// NewHandler returns a handler for Ethermint type messages.
|
|
func NewHandler(k *keeper.Keeper) sdk.Handler {
|
|
return func(ctx sdk.Context, msg sdk.Msg) (result *sdk.Result, err error) {
|
|
defer Recover(&err)
|
|
|
|
ctx = ctx.WithEventManager(sdk.NewEventManager())
|
|
|
|
switch msg := msg.(type) {
|
|
case *types.MsgEthereumTx:
|
|
// execute state transition
|
|
res, err := k.EthereumTx(sdk.WrapSDKContext(ctx), msg)
|
|
if err != nil {
|
|
return sdk.WrapServiceResult(ctx, res, err)
|
|
} else if result, err = sdk.WrapServiceResult(ctx, res, nil); err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
// log state transition result
|
|
var recipientLog string
|
|
if res.ContractAddress != "" {
|
|
recipientLog = fmt.Sprintf("contract address %s", res.ContractAddress)
|
|
} else {
|
|
var recipient string
|
|
if to := msg.To(); to != nil {
|
|
recipient = to.Hex()
|
|
}
|
|
|
|
recipientLog = fmt.Sprintf("recipient address %s", recipient)
|
|
}
|
|
|
|
sender := ethcmn.BytesToAddress(msg.GetFrom().Bytes())
|
|
|
|
if res.Reverted {
|
|
result.Log = "transaction reverted"
|
|
log := fmt.Sprintf(
|
|
"reverted EVM state transition; sender address %s; %s", sender.Hex(), recipientLog,
|
|
)
|
|
k.Logger(ctx).Info(log)
|
|
} else {
|
|
log := fmt.Sprintf(
|
|
"executed EVM state transition; sender address %s; %s", sender.Hex(), recipientLog,
|
|
)
|
|
result.Log = log
|
|
k.Logger(ctx).Info(log)
|
|
}
|
|
|
|
return result, nil
|
|
|
|
default:
|
|
err := sdkerrors.Wrapf(sdkerrors.ErrUnknownRequest, "unrecognized %s message type: %T", types.ModuleName, msg)
|
|
return nil, err
|
|
}
|
|
}
|
|
}
|
|
|
|
func Recover(err *error) {
|
|
if r := recover(); r != nil {
|
|
*err = sdkerrors.Wrapf(sdkerrors.ErrPanic, "%v", r)
|
|
|
|
if e, ok := r.(error); ok {
|
|
log.WithError(e).Errorln("evm msg handler panicked with an error")
|
|
log.Debugln(string(debug.Stack()))
|
|
} else {
|
|
log.Errorln(r)
|
|
}
|
|
}
|
|
}
|