/
ante.go
82 lines (73 loc) · 3.37 KB
/
ante.go
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package ante
import (
"github.com/cosmos/cosmos-sdk/codec"
sdk "github.com/cosmos/cosmos-sdk/types"
sdkerrors "github.com/cosmos/cosmos-sdk/types/errors"
"github.com/cosmos/cosmos-sdk/x/auth/ante"
govkeeper "github.com/cosmos/cosmos-sdk/x/gov/keeper"
paramtypes "github.com/cosmos/cosmos-sdk/x/params/types"
ibcante "github.com/cosmos/ibc-go/v4/modules/core/ante"
ibckeeper "github.com/cosmos/ibc-go/v4/modules/core/keeper"
gaiafeeante "github.com/cosmos/gaia/v9/x/globalfee/ante"
)
// HandlerOptions extend the SDK's AnteHandler options by requiring the IBC
// channel keeper.
type HandlerOptions struct {
ante.HandlerOptions
Codec codec.BinaryCodec
GovKeeper *govkeeper.Keeper
IBCkeeper *ibckeeper.Keeper
BypassMinFeeMsgTypes []string
GlobalFeeSubspace paramtypes.Subspace
StakingSubspace paramtypes.Subspace
}
func NewAnteHandler(opts HandlerOptions) (sdk.AnteHandler, error) {
if opts.AccountKeeper == nil {
return nil, sdkerrors.Wrap(sdkerrors.ErrLogic, "account keeper is required for AnteHandler")
}
if opts.BankKeeper == nil {
return nil, sdkerrors.Wrap(sdkerrors.ErrLogic, "bank keeper is required for AnteHandler")
}
if opts.SignModeHandler == nil {
return nil, sdkerrors.Wrap(sdkerrors.ErrLogic, "sign mode handler is required for AnteHandler")
}
if opts.IBCkeeper == nil {
return nil, sdkerrors.Wrap(sdkerrors.ErrLogic, "IBC keeper is required for AnteHandler")
}
if opts.GlobalFeeSubspace.Name() == "" {
return nil, sdkerrors.Wrap(sdkerrors.ErrNotFound, "globalfee param store is required for AnteHandler")
}
if opts.StakingSubspace.Name() == "" {
return nil, sdkerrors.Wrap(sdkerrors.ErrNotFound, "staking param store is required for AnteHandler")
}
if opts.GovKeeper == nil {
return nil, sdkerrors.Wrap(sdkerrors.ErrLogic, "gov keeper is required for AnteHandler")
}
sigGasConsumer := opts.SigGasConsumer
if sigGasConsumer == nil {
sigGasConsumer = ante.DefaultSigVerificationGasConsumer
}
// maxBypassMinFeeMsgGasUsage is the maximum gas usage per message
// so that a transaction that contains only message types that can
// bypass the minimum fee can be accepted with a zero fee.
// For details, see gaiafeeante.NewFeeDecorator()
var maxBypassMinFeeMsgGasUsage uint64 = 200_000
anteDecorators := []sdk.AnteDecorator{
ante.NewSetUpContextDecorator(), // outermost AnteDecorator. SetUpContext must be called first
ante.NewRejectExtensionOptionsDecorator(),
ante.NewValidateBasicDecorator(),
ante.NewTxTimeoutHeightDecorator(),
ante.NewValidateMemoDecorator(opts.AccountKeeper),
ante.NewConsumeGasForTxSizeDecorator(opts.AccountKeeper),
NewGovPreventSpamDecorator(opts.Codec, opts.GovKeeper),
gaiafeeante.NewFeeDecorator(opts.BypassMinFeeMsgTypes, opts.GlobalFeeSubspace, opts.StakingSubspace, maxBypassMinFeeMsgGasUsage),
ante.NewDeductFeeDecorator(opts.AccountKeeper, opts.BankKeeper, opts.FeegrantKeeper),
ante.NewSetPubKeyDecorator(opts.AccountKeeper), // SetPubKeyDecorator must be called before all signature verification decorators
ante.NewValidateSigCountDecorator(opts.AccountKeeper),
ante.NewSigGasConsumeDecorator(opts.AccountKeeper, sigGasConsumer),
ante.NewSigVerificationDecorator(opts.AccountKeeper, opts.SignModeHandler),
ante.NewIncrementSequenceDecorator(opts.AccountKeeper),
ibcante.NewAnteDecorator(opts.IBCkeeper),
}
return sdk.ChainAnteDecorators(anteDecorators...), nil
}