37 lines
1.3 KiB
Go
37 lines
1.3 KiB
Go
package ante
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import (
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codectypes "github.com/cosmos/cosmos-sdk/codec/types"
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"github.com/cosmos/cosmos-sdk/types"
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sdkerrors "github.com/cosmos/cosmos-sdk/types/errors"
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)
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type HasExtensionOptionsTx interface {
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GetExtensionOptions() []*codectypes.Any
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GetNonCriticalExtensionOptions() []*codectypes.Any
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}
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// RejectExtensionOptionsDecorator is an AnteDecorator that rejects all extension
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// options which can optionally be included in protobuf transactions. Users that
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// need extension options should create a custom AnteHandler chain that handles
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// needed extension options properly and rejects unknown ones.
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type RejectExtensionOptionsDecorator struct{}
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// NewRejectExtensionOptionsDecorator creates a new RejectExtensionOptionsDecorator
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func NewRejectExtensionOptionsDecorator() RejectExtensionOptionsDecorator {
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return RejectExtensionOptionsDecorator{}
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}
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var _ types.AnteDecorator = RejectExtensionOptionsDecorator{}
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// AnteHandle implements the AnteDecorator.AnteHandle method
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func (r RejectExtensionOptionsDecorator) AnteHandle(ctx types.Context, tx types.Tx, simulate bool, next types.AnteHandler) (newCtx types.Context, err error) {
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if hasExtOptsTx, ok := tx.(HasExtensionOptionsTx); ok {
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if len(hasExtOptsTx.GetExtensionOptions()) != 0 {
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return ctx, sdkerrors.ErrUnknownExtensionOptions
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}
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}
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return next(ctx, tx, simulate)
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}
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