36 lines
1.6 KiB
Go
36 lines
1.6 KiB
Go
package ante
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import (
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sdk "github.com/cosmos/cosmos-sdk/types"
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authante "github.com/cosmos/cosmos-sdk/x/auth/ante"
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authkeeper "github.com/cosmos/cosmos-sdk/x/auth/keeper"
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"github.com/cosmos/cosmos-sdk/x/auth/signing"
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feegrantkeeper "github.com/cosmos/cosmos-sdk/x/feegrant/keeper"
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feegranttypes "github.com/cosmos/cosmos-sdk/x/feegrant/types"
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)
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// NewAnteHandler returns an AnteHandler that checks and increments sequence
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// numbers, checks signatures & account numbers, and deducts fees from the
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// fee_payer or from fee_granter (if valid grant exist).
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func NewAnteHandler(
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ak authkeeper.AccountKeeper, bankKeeper feegranttypes.BankKeeper, feeGrantKeeper feegrantkeeper.Keeper,
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sigGasConsumer authante.SignatureVerificationGasConsumer, signModeHandler signing.SignModeHandler,
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) sdk.AnteHandler {
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return sdk.ChainAnteDecorators(
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authante.NewSetUpContextDecorator(), // outermost AnteDecorator. SetUpContext must be called first
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authante.NewRejectExtensionOptionsDecorator(),
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authante.NewMempoolFeeDecorator(),
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authante.NewValidateBasicDecorator(),
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authante.TxTimeoutHeightDecorator{},
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authante.NewValidateMemoDecorator(ak),
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authante.NewConsumeGasForTxSizeDecorator(ak),
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NewDeductGrantedFeeDecorator(ak, bankKeeper, feeGrantKeeper),
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authante.NewSetPubKeyDecorator(ak), // SetPubKeyDecorator must be called before all signature verification decorators
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authante.NewValidateSigCountDecorator(ak),
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authante.NewSigGasConsumeDecorator(ak, sigGasConsumer),
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authante.NewSigVerificationDecorator(ak, signModeHandler),
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authante.NewIncrementSequenceDecorator(ak), // innermost AnteDecorator
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)
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}
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