forked from cerc-io/laconicd-deprecated
603 lines
17 KiB
Go
603 lines
17 KiB
Go
package keeper
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import (
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"context"
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"encoding/json"
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"errors"
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"fmt"
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"math/big"
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"time"
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"github.com/ethereum/go-ethereum/eth/tracers/logger"
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"github.com/ethereum/go-ethereum/eth/tracers"
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"google.golang.org/grpc/codes"
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"google.golang.org/grpc/status"
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sdk "github.com/cosmos/cosmos-sdk/types"
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"github.com/ethereum/go-ethereum/common"
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"github.com/ethereum/go-ethereum/common/hexutil"
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"github.com/ethereum/go-ethereum/core"
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ethtypes "github.com/ethereum/go-ethereum/core/types"
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"github.com/ethereum/go-ethereum/core/vm"
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ethparams "github.com/ethereum/go-ethereum/params"
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ethermint "github.com/evmos/ethermint/types"
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"github.com/evmos/ethermint/x/evm/statedb"
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"github.com/evmos/ethermint/x/evm/types"
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)
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var _ types.QueryServer = Keeper{}
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const (
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defaultTraceTimeout = 5 * time.Second
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)
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// Account implements the Query/Account gRPC method
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func (k Keeper) Account(c context.Context, req *types.QueryAccountRequest) (*types.QueryAccountResponse, error) {
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if req == nil {
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return nil, status.Error(codes.InvalidArgument, "empty request")
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}
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if err := ethermint.ValidateAddress(req.Address); err != nil {
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return nil, status.Error(
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codes.InvalidArgument, err.Error(),
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)
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}
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addr := common.HexToAddress(req.Address)
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ctx := sdk.UnwrapSDKContext(c)
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acct := k.GetAccountOrEmpty(ctx, addr)
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return &types.QueryAccountResponse{
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Balance: acct.Balance.String(),
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CodeHash: common.BytesToHash(acct.CodeHash).Hex(),
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Nonce: acct.Nonce,
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}, nil
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}
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func (k Keeper) CosmosAccount(c context.Context, req *types.QueryCosmosAccountRequest) (*types.QueryCosmosAccountResponse, error) {
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if req == nil {
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return nil, status.Error(codes.InvalidArgument, "empty request")
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}
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if err := ethermint.ValidateAddress(req.Address); err != nil {
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return nil, status.Error(
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codes.InvalidArgument, err.Error(),
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)
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}
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ctx := sdk.UnwrapSDKContext(c)
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ethAddr := common.HexToAddress(req.Address)
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cosmosAddr := sdk.AccAddress(ethAddr.Bytes())
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account := k.accountKeeper.GetAccount(ctx, cosmosAddr)
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res := types.QueryCosmosAccountResponse{
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CosmosAddress: cosmosAddr.String(),
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}
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if account != nil {
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res.Sequence = account.GetSequence()
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res.AccountNumber = account.GetAccountNumber()
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}
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return &res, nil
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}
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func (k Keeper) ValidatorAccount(c context.Context, req *types.QueryValidatorAccountRequest) (*types.QueryValidatorAccountResponse, error) {
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if req == nil {
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return nil, status.Error(codes.InvalidArgument, "empty request")
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}
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consAddr, err := sdk.ConsAddressFromBech32(req.ConsAddress)
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if err != nil {
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return nil, status.Error(
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codes.InvalidArgument, err.Error(),
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)
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}
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ctx := sdk.UnwrapSDKContext(c)
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validator, found := k.stakingKeeper.GetValidatorByConsAddr(ctx, consAddr)
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if !found {
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return nil, nil
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}
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accAddr := sdk.AccAddress(validator.GetOperator())
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res := types.QueryValidatorAccountResponse{
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AccountAddress: accAddr.String(),
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}
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account := k.accountKeeper.GetAccount(ctx, accAddr)
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if account != nil {
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res.Sequence = account.GetSequence()
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res.AccountNumber = account.GetAccountNumber()
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}
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return &res, nil
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}
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// Balance implements the Query/Balance gRPC method
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func (k Keeper) Balance(c context.Context, req *types.QueryBalanceRequest) (*types.QueryBalanceResponse, error) {
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if req == nil {
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return nil, status.Error(codes.InvalidArgument, "empty request")
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}
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if err := ethermint.ValidateAddress(req.Address); err != nil {
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return nil, status.Error(
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codes.InvalidArgument,
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types.ErrZeroAddress.Error(),
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)
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}
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ctx := sdk.UnwrapSDKContext(c)
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balanceInt := k.GetBalance(ctx, common.HexToAddress(req.Address))
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return &types.QueryBalanceResponse{
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Balance: balanceInt.String(),
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}, nil
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}
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// Storage implements the Query/Storage gRPC method
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func (k Keeper) Storage(c context.Context, req *types.QueryStorageRequest) (*types.QueryStorageResponse, error) {
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if req == nil {
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return nil, status.Error(codes.InvalidArgument, "empty request")
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}
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if err := ethermint.ValidateAddress(req.Address); err != nil {
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return nil, status.Error(
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codes.InvalidArgument,
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types.ErrZeroAddress.Error(),
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)
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}
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ctx := sdk.UnwrapSDKContext(c)
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address := common.HexToAddress(req.Address)
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key := common.HexToHash(req.Key)
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state := k.GetState(ctx, address, key)
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stateHex := state.Hex()
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return &types.QueryStorageResponse{
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Value: stateHex,
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}, nil
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}
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// Code implements the Query/Code gRPC method
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func (k Keeper) Code(c context.Context, req *types.QueryCodeRequest) (*types.QueryCodeResponse, error) {
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if req == nil {
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return nil, status.Error(codes.InvalidArgument, "empty request")
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}
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if err := ethermint.ValidateAddress(req.Address); err != nil {
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return nil, status.Error(
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codes.InvalidArgument,
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types.ErrZeroAddress.Error(),
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)
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}
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ctx := sdk.UnwrapSDKContext(c)
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address := common.HexToAddress(req.Address)
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acct := k.GetAccountWithoutBalance(ctx, address)
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var code []byte
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if acct != nil && acct.IsContract() {
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code = k.GetCode(ctx, common.BytesToHash(acct.CodeHash))
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}
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return &types.QueryCodeResponse{
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Code: code,
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}, nil
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}
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// Params implements the Query/Params gRPC method
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func (k Keeper) Params(c context.Context, _ *types.QueryParamsRequest) (*types.QueryParamsResponse, error) {
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ctx := sdk.UnwrapSDKContext(c)
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params := k.GetParams(ctx)
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return &types.QueryParamsResponse{
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Params: params,
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}, nil
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}
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// EthCall implements eth_call rpc api.
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func (k Keeper) EthCall(c context.Context, req *types.EthCallRequest) (*types.MsgEthereumTxResponse, error) {
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if req == nil {
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return nil, status.Error(codes.InvalidArgument, "empty request")
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}
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ctx := sdk.UnwrapSDKContext(c)
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var args types.TransactionArgs
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err := json.Unmarshal(req.Args, &args)
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if err != nil {
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return nil, status.Error(codes.InvalidArgument, err.Error())
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}
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cfg, err := k.EVMConfig(ctx)
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if err != nil {
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return nil, status.Error(codes.Internal, err.Error())
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}
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// ApplyMessageWithConfig expect correct nonce set in msg
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nonce := k.GetNonce(ctx, args.GetFrom())
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args.Nonce = (*hexutil.Uint64)(&nonce)
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msg, err := args.ToMessage(req.GasCap, cfg.BaseFee)
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if err != nil {
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return nil, status.Error(codes.InvalidArgument, err.Error())
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}
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txConfig := statedb.NewEmptyTxConfig(common.BytesToHash(ctx.HeaderHash()))
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// pass false to not commit StateDB
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res, err := k.ApplyMessageWithConfig(ctx, msg, nil, false, cfg, txConfig)
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if err != nil {
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return nil, status.Error(codes.Internal, err.Error())
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}
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return res, nil
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}
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// EstimateGas implements eth_estimateGas rpc api.
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func (k Keeper) EstimateGas(c context.Context, req *types.EthCallRequest) (*types.EstimateGasResponse, error) {
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if req == nil {
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return nil, status.Error(codes.InvalidArgument, "empty request")
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}
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ctx := sdk.UnwrapSDKContext(c)
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if req.GasCap < ethparams.TxGas {
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return nil, status.Error(codes.InvalidArgument, "gas cap cannot be lower than 21,000")
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}
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var args types.TransactionArgs
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err := json.Unmarshal(req.Args, &args)
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if err != nil {
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return nil, status.Error(codes.InvalidArgument, err.Error())
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}
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// Binary search the gas requirement, as it may be higher than the amount used
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var (
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lo = ethparams.TxGas - 1
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hi uint64
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cap uint64
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)
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// Determine the highest gas limit can be used during the estimation.
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if args.Gas != nil && uint64(*args.Gas) >= ethparams.TxGas {
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hi = uint64(*args.Gas)
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} else {
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// Query block gas limit
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params := ctx.ConsensusParams()
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if params != nil && params.Block != nil && params.Block.MaxGas > 0 {
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hi = uint64(params.Block.MaxGas)
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} else {
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hi = req.GasCap
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}
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}
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// TODO: Recap the highest gas limit with account's available balance.
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// Recap the highest gas allowance with specified gascap.
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if req.GasCap != 0 && hi > req.GasCap {
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hi = req.GasCap
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}
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cap = hi
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cfg, err := k.EVMConfig(ctx)
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if err != nil {
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return nil, status.Error(codes.Internal, "failed to load evm config")
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}
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// ApplyMessageWithConfig expect correct nonce set in msg
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nonce := k.GetNonce(ctx, args.GetFrom())
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args.Nonce = (*hexutil.Uint64)(&nonce)
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txConfig := statedb.NewEmptyTxConfig(common.BytesToHash(ctx.HeaderHash().Bytes()))
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// Create a helper to check if a gas allowance results in an executable transaction
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executable := func(gas uint64) (vmerror bool, rsp *types.MsgEthereumTxResponse, err error) {
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args.Gas = (*hexutil.Uint64)(&gas)
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msg, err := args.ToMessage(req.GasCap, cfg.BaseFee)
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if err != nil {
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return false, nil, err
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}
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// pass false to not commit StateDB
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rsp, err = k.ApplyMessageWithConfig(ctx, msg, nil, false, cfg, txConfig)
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if err != nil {
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if errors.Is(err, core.ErrIntrinsicGas) {
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return true, nil, nil // Special case, raise gas limit
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}
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return true, nil, err // Bail out
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}
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return len(rsp.VmError) > 0, rsp, nil
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}
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// Execute the binary search and hone in on an executable gas limit
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hi, err = types.BinSearch(lo, hi, executable)
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if err != nil {
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return nil, status.Error(codes.Internal, err.Error())
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}
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// Reject the transaction as invalid if it still fails at the highest allowance
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if hi == cap {
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failed, result, err := executable(hi)
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if err != nil {
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return nil, status.Error(codes.Internal, err.Error())
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}
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if failed {
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if result != nil && result.VmError != vm.ErrOutOfGas.Error() {
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if result.VmError == vm.ErrExecutionReverted.Error() {
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return nil, types.NewExecErrorWithReason(result.Ret)
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}
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return nil, status.Error(codes.Internal, result.VmError)
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}
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// Otherwise, the specified gas cap is too low
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return nil, status.Error(codes.Internal, fmt.Sprintf("gas required exceeds allowance (%d)", cap))
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}
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}
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return &types.EstimateGasResponse{Gas: hi}, nil
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}
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// TraceTx configures a new tracer according to the provided configuration, and
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// executes the given message in the provided environment. The return value will
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// be tracer dependent.
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func (k Keeper) TraceTx(c context.Context, req *types.QueryTraceTxRequest) (*types.QueryTraceTxResponse, error) {
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if req == nil {
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return nil, status.Error(codes.InvalidArgument, "empty request")
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}
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if req.TraceConfig != nil && req.TraceConfig.Limit < 0 {
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return nil, status.Errorf(codes.InvalidArgument, "output limit cannot be negative, got %d", req.TraceConfig.Limit)
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}
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// minus one to get the context of block beginning
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contextHeight := req.BlockNumber - 1
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if contextHeight < 1 {
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// 0 is a special value in `ContextWithHeight`
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contextHeight = 1
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}
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ctx := sdk.UnwrapSDKContext(c)
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ctx = ctx.WithBlockHeight(contextHeight)
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ctx = ctx.WithBlockTime(req.BlockTime)
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ctx = ctx.WithHeaderHash(common.Hex2Bytes(req.BlockHash))
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cfg, err := k.EVMConfig(ctx)
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if err != nil {
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return nil, status.Errorf(codes.Internal, "failed to load evm config: %s", err.Error())
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}
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signer := ethtypes.MakeSigner(cfg.ChainConfig, big.NewInt(ctx.BlockHeight()))
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txConfig := statedb.NewEmptyTxConfig(common.BytesToHash(ctx.HeaderHash().Bytes()))
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for i, tx := range req.Predecessors {
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ethTx := tx.AsTransaction()
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msg, err := ethTx.AsMessage(signer, cfg.BaseFee)
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if err != nil {
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continue
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}
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txConfig.TxHash = ethTx.Hash()
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txConfig.TxIndex = uint(i)
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rsp, err := k.ApplyMessageWithConfig(ctx, msg, types.NewNoOpTracer(), true, cfg, txConfig)
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if err != nil {
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continue
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}
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txConfig.LogIndex += uint(len(rsp.Logs))
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}
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tx := req.Msg.AsTransaction()
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txConfig.TxHash = tx.Hash()
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txConfig.TxIndex++
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result, _, err := k.traceTx(ctx, cfg, txConfig, signer, tx, req.TraceConfig, false)
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if err != nil {
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// error will be returned with detail status from traceTx
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return nil, err
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}
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resultData, err := json.Marshal(result)
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if err != nil {
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return nil, status.Error(codes.Internal, err.Error())
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}
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return &types.QueryTraceTxResponse{
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Data: resultData,
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}, nil
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}
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// TraceBlock configures a new tracer according to the provided configuration, and
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// executes the given message in the provided environment for all the transactions in the queried block.
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// The return value will be tracer dependent.
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func (k Keeper) TraceBlock(c context.Context, req *types.QueryTraceBlockRequest) (*types.QueryTraceBlockResponse, error) {
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if req == nil {
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return nil, status.Error(codes.InvalidArgument, "empty request")
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}
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if req.TraceConfig != nil && req.TraceConfig.Limit < 0 {
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return nil, status.Errorf(codes.InvalidArgument, "output limit cannot be negative, got %d", req.TraceConfig.Limit)
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}
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// minus one to get the context of block beginning
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contextHeight := req.BlockNumber - 1
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if contextHeight < 1 {
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// 0 is a special value in `ContextWithHeight`
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contextHeight = 1
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}
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ctx := sdk.UnwrapSDKContext(c)
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ctx = ctx.WithBlockHeight(contextHeight)
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ctx = ctx.WithBlockTime(req.BlockTime)
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ctx = ctx.WithHeaderHash(common.Hex2Bytes(req.BlockHash))
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cfg, err := k.EVMConfig(ctx)
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if err != nil {
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return nil, status.Error(codes.Internal, "failed to load evm config")
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}
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signer := ethtypes.MakeSigner(cfg.ChainConfig, big.NewInt(ctx.BlockHeight()))
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txsLength := len(req.Txs)
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results := make([]*types.TxTraceResult, 0, txsLength)
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txConfig := statedb.NewEmptyTxConfig(common.BytesToHash(ctx.HeaderHash().Bytes()))
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for i, tx := range req.Txs {
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result := types.TxTraceResult{}
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ethTx := tx.AsTransaction()
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txConfig.TxHash = ethTx.Hash()
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txConfig.TxIndex = uint(i)
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traceResult, logIndex, err := k.traceTx(ctx, cfg, txConfig, signer, ethTx, req.TraceConfig, true)
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if err != nil {
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result.Error = err.Error()
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continue
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}
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txConfig.LogIndex = logIndex
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result.Result = traceResult
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results = append(results, &result)
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}
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resultData, err := json.Marshal(results)
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if err != nil {
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return nil, status.Error(codes.Internal, err.Error())
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}
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return &types.QueryTraceBlockResponse{
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Data: resultData,
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}, nil
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}
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// traceTx do trace on one transaction, it returns a tuple: (traceResult, nextLogIndex, error).
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func (k *Keeper) traceTx(
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ctx sdk.Context,
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cfg *types.EVMConfig,
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txConfig statedb.TxConfig,
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signer ethtypes.Signer,
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tx *ethtypes.Transaction,
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traceConfig *types.TraceConfig,
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commitMessage bool,
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) (*interface{}, uint, error) {
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// Assemble the structured logger or the JavaScript tracer
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var (
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tracer vm.EVMLogger
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overrides *ethparams.ChainConfig
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err error
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)
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msg, err := tx.AsMessage(signer, cfg.BaseFee)
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if err != nil {
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return nil, 0, status.Error(codes.Internal, err.Error())
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}
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if traceConfig != nil && traceConfig.Overrides != nil {
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overrides = traceConfig.Overrides.EthereumConfig(cfg.ChainConfig.ChainID)
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}
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switch {
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case traceConfig != nil && traceConfig.Tracer != "":
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timeout := defaultTraceTimeout
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// TODO: change timeout to time.duration
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// Used string to comply with go ethereum
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if traceConfig.Timeout != "" {
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timeout, err = time.ParseDuration(traceConfig.Timeout)
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if err != nil {
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return nil, 0, status.Errorf(codes.InvalidArgument, "timeout value: %s", err.Error())
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}
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}
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tCtx := &tracers.Context{
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BlockHash: txConfig.BlockHash,
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TxIndex: int(txConfig.TxIndex),
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TxHash: txConfig.TxHash,
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}
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// Construct the JavaScript tracer to execute with
|
|
if tracer, err = tracers.New(traceConfig.Tracer, tCtx); err != nil {
|
|
return nil, 0, status.Error(codes.Internal, err.Error())
|
|
}
|
|
|
|
// Handle timeouts and RPC cancellations
|
|
deadlineCtx, cancel := context.WithTimeout(ctx.Context(), timeout)
|
|
defer cancel()
|
|
|
|
go func() {
|
|
<-deadlineCtx.Done()
|
|
if errors.Is(deadlineCtx.Err(), context.DeadlineExceeded) {
|
|
tracer.(tracers.Tracer).Stop(errors.New("execution timeout"))
|
|
}
|
|
}()
|
|
|
|
case traceConfig != nil:
|
|
logConfig := logger.Config{
|
|
EnableMemory: traceConfig.EnableMemory,
|
|
DisableStorage: traceConfig.DisableStorage,
|
|
DisableStack: traceConfig.DisableStack,
|
|
EnableReturnData: traceConfig.EnableReturnData,
|
|
Debug: traceConfig.Debug,
|
|
Limit: int(traceConfig.Limit),
|
|
Overrides: overrides,
|
|
}
|
|
tracer = logger.NewStructLogger(&logConfig)
|
|
default:
|
|
tracer = types.NewTracer(types.TracerStruct, msg, cfg.ChainConfig, ctx.BlockHeight())
|
|
}
|
|
|
|
res, err := k.ApplyMessageWithConfig(ctx, msg, tracer, commitMessage, cfg, txConfig)
|
|
if err != nil {
|
|
return nil, 0, status.Error(codes.Internal, err.Error())
|
|
}
|
|
|
|
var result interface{}
|
|
|
|
// Depending on the tracer type, format and return the trace result data.
|
|
switch tracer := tracer.(type) {
|
|
case *logger.StructLogger:
|
|
returnVal := ""
|
|
revert := res.Revert()
|
|
if len(revert) > 0 {
|
|
returnVal = fmt.Sprintf("%x", revert)
|
|
} else {
|
|
returnVal = fmt.Sprintf("%x", res.Return())
|
|
}
|
|
result = types.ExecutionResult{
|
|
Gas: res.GasUsed,
|
|
Failed: res.Failed(),
|
|
ReturnValue: returnVal,
|
|
StructLogs: types.FormatLogs(tracer.StructLogs()),
|
|
}
|
|
case tracers.Tracer:
|
|
result, err = tracer.GetResult()
|
|
if err != nil {
|
|
return nil, 0, status.Error(codes.Internal, err.Error())
|
|
}
|
|
|
|
default:
|
|
return nil, 0, status.Errorf(codes.InvalidArgument, "invalid tracer type %T", tracer)
|
|
}
|
|
|
|
return &result, txConfig.LogIndex + uint(len(res.Logs)), nil
|
|
}
|
|
|
|
// BaseFee implements the Query/BaseFee gRPC method
|
|
func (k Keeper) BaseFee(c context.Context, _ *types.QueryBaseFeeRequest) (*types.QueryBaseFeeResponse, error) {
|
|
ctx := sdk.UnwrapSDKContext(c)
|
|
|
|
params := k.GetParams(ctx)
|
|
ethCfg := params.ChainConfig.EthereumConfig(k.eip155ChainID)
|
|
baseFee := k.GetBaseFee(ctx, ethCfg)
|
|
|
|
res := &types.QueryBaseFeeResponse{}
|
|
if baseFee != nil {
|
|
aux := sdk.NewIntFromBigInt(baseFee)
|
|
res.BaseFee = &aux
|
|
}
|
|
|
|
return res, nil
|
|
}
|