52 lines
2.0 KiB
Go
52 lines
2.0 KiB
Go
package simapp
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import (
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"errors"
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circuitante "cosmossdk.io/x/circuit/ante"
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sdk "github.com/cosmos/cosmos-sdk/types"
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"github.com/cosmos/cosmos-sdk/x/auth/ante"
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)
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// HandlerOptions are the options required for constructing a default SDK AnteHandler.
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type HandlerOptions struct {
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ante.HandlerOptions
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CircuitKeeper circuitante.CircuitBreaker
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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 first
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// signer.
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func NewAnteHandler(options HandlerOptions) (sdk.AnteHandler, error) {
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if options.AccountKeeper == nil {
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return nil, errors.New("account keeper is required for ante builder")
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}
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if options.BankKeeper == nil {
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return nil, errors.New("bank keeper is required for ante builder")
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}
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if options.SignModeHandler == nil {
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return nil, errors.New("sign mode handler is required for ante builder")
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}
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anteDecorators := []sdk.AnteDecorator{
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ante.NewSetUpContextDecorator(), // outermost AnteDecorator. SetUpContext must be called first
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circuitante.NewCircuitBreakerDecorator(options.CircuitKeeper),
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ante.NewExtensionOptionsDecorator(options.ExtensionOptionChecker),
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ante.NewValidateBasicDecorator(),
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ante.NewTxTimeoutHeightDecorator(),
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ante.NewValidateMemoDecorator(options.AccountKeeper),
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ante.NewConsumeGasForTxSizeDecorator(options.AccountKeeper),
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ante.NewDeductFeeDecorator(options.AccountKeeper, options.BankKeeper, options.FeegrantKeeper, options.TxFeeChecker),
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ante.NewSetPubKeyDecorator(options.AccountKeeper), // SetPubKeyDecorator must be called before all signature verification decorators
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ante.NewValidateSigCountDecorator(options.AccountKeeper),
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ante.NewSigGasConsumeDecorator(options.AccountKeeper, options.SigGasConsumer),
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ante.NewSigVerificationDecorator(options.AccountKeeper, options.SignModeHandler, options.SigVerifyOptions...),
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ante.NewIncrementSequenceDecorator(options.AccountKeeper),
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}
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return sdk.ChainAnteDecorators(anteDecorators...), nil
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}
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