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ante.go
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ante.go
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package app
import (
sdk "github.com/cosmos/cosmos-sdk/types"
sdkerrors "github.com/cosmos/cosmos-sdk/types/errors"
"github.com/cosmos/cosmos-sdk/x/auth/ante"
ibcante "github.com/cosmos/ibc-go/v4/modules/core/ante"
ibckeeper "github.com/cosmos/ibc-go/v4/modules/core/keeper"
consumerante "github.com/cosmos/interchain-security/app/consumer/ante"
ibcconsumerkeeper "github.com/cosmos/interchain-security/x/ccv/consumer/keeper"
wasmkeeper "github.com/CosmWasm/wasmd/x/wasm/keeper"
wasmTypes "github.com/CosmWasm/wasmd/x/wasm/types"
)
type HandlerOptions struct {
ante.HandlerOptions
IBCKeeper *ibckeeper.Keeper
ConsumerKeeper ibcconsumerkeeper.Keeper
WasmConfig *wasmTypes.WasmConfig
TXCounterStoreKey sdk.StoreKey
}
// NewAnteHandler returns an AnteHandler that checks and increments sequence
// numbers, checks signatures & account numbers, and deducts fees from the first
// signer
func NewAnteHandler(options HandlerOptions) (sdk.AnteHandler, error) {
if options.AccountKeeper == nil {
return nil, sdkerrors.Wrap(sdkerrors.ErrLogic, "account keeper is required for AnteHandler")
}
if options.BankKeeper == nil {
return nil, sdkerrors.Wrap(sdkerrors.ErrLogic, "bank keeper is required for AnteHandler")
}
if options.SignModeHandler == nil {
return nil, sdkerrors.Wrap(sdkerrors.ErrLogic, "sign mode handler is required for ante builder")
}
if options.WasmConfig == nil {
return nil, sdkerrors.Wrap(sdkerrors.ErrLogic, "wasm config is required for ante builder")
}
sigGasConsumer := options.SigGasConsumer
if sigGasConsumer == nil {
sigGasConsumer = ante.DefaultSigVerificationGasConsumer
}
anteDecorators := []sdk.AnteDecorator{
ante.NewSetUpContextDecorator(), // outermost AnteDecorator. SetUpContext must be called first
ante.NewRejectExtensionOptionsDecorator(),
wasmkeeper.NewLimitSimulationGasDecorator(options.WasmConfig.SimulationGasLimit), // after setup context to enforce limits early
wasmkeeper.NewCountTXDecorator(options.TXCounterStoreKey),
// temporarily disabled so that chain can be tested locally without the provider chain running
// consumerante.NewMsgFilterDecorator(options.ConsumerKeeper),
consumerante.NewDisabledModulesDecorator("/cosmos.evidence", "/cosmos.slashing"),
ante.NewMempoolFeeDecorator(),
ante.NewValidateBasicDecorator(),
ante.NewTxTimeoutHeightDecorator(),
ante.NewValidateMemoDecorator(options.AccountKeeper),
ante.NewConsumeGasForTxSizeDecorator(options.AccountKeeper),
ante.NewDeductFeeDecorator(options.AccountKeeper, options.BankKeeper, options.FeegrantKeeper),
ante.NewSetPubKeyDecorator(options.AccountKeeper), // SetPubKeyDecorator must be called before all signature verification decorators
ante.NewValidateSigCountDecorator(options.AccountKeeper),
ante.NewSigGasConsumeDecorator(options.AccountKeeper, sigGasConsumer),
ante.NewSigVerificationDecorator(options.AccountKeeper, options.SignModeHandler),
ante.NewIncrementSequenceDecorator(options.AccountKeeper),
ibcante.NewAnteDecorator(options.IBCKeeper),
}
return sdk.ChainAnteDecorators(anteDecorators...), nil
}