/
handler_options.go
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/
handler_options.go
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// Copyright 2021 Evmos Foundation
// This file is part of Evmos' Ethermint library.
//
// The Ethermint 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 Ethermint 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 Ethermint library. If not, see https://github.com/xpladev/ethermint/blob/main/LICENSE
package ante
import (
errorsmod "cosmossdk.io/errors"
sdk "github.com/cosmos/cosmos-sdk/types"
errortypes "github.com/cosmos/cosmos-sdk/types/errors"
"github.com/cosmos/cosmos-sdk/types/tx/signing"
"github.com/cosmos/cosmos-sdk/x/auth/ante"
authsigning "github.com/cosmos/cosmos-sdk/x/auth/signing"
authtypes "github.com/cosmos/cosmos-sdk/x/auth/types"
ibcante "github.com/cosmos/ibc-go/v7/modules/core/ante"
ibckeeper "github.com/cosmos/ibc-go/v7/modules/core/keeper"
evmtypes "github.com/xpladev/ethermint/x/evm/types"
)
// HandlerOptions extend the SDK's AnteHandler options by requiring the IBC
// channel keeper, EVM Keeper and Fee Market Keeper.
type HandlerOptions struct {
AccountKeeper evmtypes.AccountKeeper
BankKeeper evmtypes.BankKeeper
IBCKeeper *ibckeeper.Keeper
FeeMarketKeeper FeeMarketKeeper
EvmKeeper EVMKeeper
FeegrantKeeper ante.FeegrantKeeper
SignModeHandler authsigning.SignModeHandler
SigGasConsumer func(meter sdk.GasMeter, sig signing.SignatureV2, params authtypes.Params) error
MaxTxGasWanted uint64
ExtensionOptionChecker ante.ExtensionOptionChecker
TxFeeChecker ante.TxFeeChecker
DisabledAuthzMsgs []string
}
func (options HandlerOptions) validate() error {
if options.AccountKeeper == nil {
return errorsmod.Wrap(errortypes.ErrLogic, "account keeper is required for AnteHandler")
}
if options.BankKeeper == nil {
return errorsmod.Wrap(errortypes.ErrLogic, "bank keeper is required for AnteHandler")
}
if options.SignModeHandler == nil {
return errorsmod.Wrap(errortypes.ErrLogic, "sign mode handler is required for ante builder")
}
if options.FeeMarketKeeper == nil {
return errorsmod.Wrap(errortypes.ErrLogic, "fee market keeper is required for AnteHandler")
}
if options.EvmKeeper == nil {
return errorsmod.Wrap(errortypes.ErrLogic, "evm keeper is required for AnteHandler")
}
return nil
}
func newEthAnteHandler(options HandlerOptions) sdk.AnteHandler {
return sdk.ChainAnteDecorators(
NewEthSetUpContextDecorator(options.EvmKeeper), // outermost AnteDecorator. SetUpContext must be called first
NewEthMempoolFeeDecorator(options.EvmKeeper), // Check eth effective gas price against minimal-gas-prices
NewEthMinGasPriceDecorator(options.FeeMarketKeeper, options.EvmKeeper), // Check eth effective gas price against the global MinGasPrice
NewEthValidateBasicDecorator(options.EvmKeeper),
NewEthSigVerificationDecorator(options.EvmKeeper),
NewEthAccountVerificationDecorator(options.AccountKeeper, options.EvmKeeper),
NewCanTransferDecorator(options.EvmKeeper),
NewEthGasConsumeDecorator(options.EvmKeeper, options.MaxTxGasWanted),
NewEthIncrementSenderSequenceDecorator(options.AccountKeeper), // innermost AnteDecorator.
NewGasWantedDecorator(options.EvmKeeper, options.FeeMarketKeeper),
NewEthEmitEventDecorator(options.EvmKeeper), // emit eth tx hash and index at the very last ante handler.
)
}
func newCosmosAnteHandler(options HandlerOptions) sdk.AnteHandler {
return sdk.ChainAnteDecorators(
RejectMessagesDecorator{}, // reject MsgEthereumTxs
// disable the Msg types that cannot be included on an authz.MsgExec msgs field
NewAuthzLimiterDecorator(options.DisabledAuthzMsgs),
ante.NewSetUpContextDecorator(),
ante.NewExtensionOptionsDecorator(options.ExtensionOptionChecker),
ante.NewValidateBasicDecorator(),
ante.NewTxTimeoutHeightDecorator(),
NewMinGasPriceDecorator(options.FeeMarketKeeper, options.EvmKeeper),
ante.NewValidateMemoDecorator(options.AccountKeeper),
ante.NewConsumeGasForTxSizeDecorator(options.AccountKeeper),
ante.NewDeductFeeDecorator(options.AccountKeeper, options.BankKeeper, options.FeegrantKeeper, options.TxFeeChecker),
// SetPubKeyDecorator must be called before all signature verification decorators
ante.NewSetPubKeyDecorator(options.AccountKeeper),
ante.NewValidateSigCountDecorator(options.AccountKeeper),
ante.NewSigGasConsumeDecorator(options.AccountKeeper, options.SigGasConsumer),
ante.NewSigVerificationDecorator(options.AccountKeeper, options.SignModeHandler),
ante.NewIncrementSequenceDecorator(options.AccountKeeper),
ibcante.NewRedundantRelayDecorator(options.IBCKeeper),
NewGasWantedDecorator(options.EvmKeeper, options.FeeMarketKeeper),
)
}