57 lines
2.0 KiB
Go
57 lines
2.0 KiB
Go
package tx
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import (
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"fmt"
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sdkerrors "github.com/cosmos/cosmos-sdk/types/errors"
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"github.com/cosmos/cosmos-sdk/x/auth/types"
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sdk "github.com/cosmos/cosmos-sdk/types"
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signingtypes "github.com/cosmos/cosmos-sdk/types/tx/signing"
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"github.com/cosmos/cosmos-sdk/x/auth/signing"
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)
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const aminoNonCriticalFieldsError = "protobuf transaction contains unknown non-critical fields. This is a transaction malleability issue and SIGN_MODE_LEGACY_AMINO_JSON cannot be used."
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var _ signing.SignModeHandler = signModeLegacyAminoJSONHandler{}
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// signModeLegacyAminoJSONHandler defines the SIGN_MODE_LEGACY_AMINO_JSON
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// SignModeHandler.
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type signModeLegacyAminoJSONHandler struct{}
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func (s signModeLegacyAminoJSONHandler) DefaultMode() signingtypes.SignMode {
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return signingtypes.SignMode_SIGN_MODE_LEGACY_AMINO_JSON
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}
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func (s signModeLegacyAminoJSONHandler) Modes() []signingtypes.SignMode {
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return []signingtypes.SignMode{signingtypes.SignMode_SIGN_MODE_LEGACY_AMINO_JSON}
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}
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func (s signModeLegacyAminoJSONHandler) GetSignBytes(mode signingtypes.SignMode, data signing.SignerData, tx sdk.Tx) ([]byte, error) {
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if mode != signingtypes.SignMode_SIGN_MODE_LEGACY_AMINO_JSON {
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return nil, fmt.Errorf("expected %s, got %s", signingtypes.SignMode_SIGN_MODE_LEGACY_AMINO_JSON, mode)
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}
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protoTx, ok := tx.(*builder)
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if !ok {
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return nil, fmt.Errorf("can only handle a protobuf Tx, got %T", tx)
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}
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if protoTx.txBodyHasUnknownNonCriticals {
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return nil, sdkerrors.Wrap(sdkerrors.ErrInvalidRequest, aminoNonCriticalFieldsError)
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}
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body := protoTx.tx.Body
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if len(body.ExtensionOptions) != 0 || len(body.NonCriticalExtensionOptions) != 0 {
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return nil, sdkerrors.Wrap(sdkerrors.ErrInvalidRequest, "SIGN_MODE_LEGACY_AMINO_JSON does not support protobuf extension options.")
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}
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// nolint: staticcheck
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return types.StdSignBytes(
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data.ChainID, data.AccountNumber, data.AccountSequence, protoTx.GetTimeoutHeight(),
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types.StdFee{Amount: protoTx.GetFee(), Gas: protoTx.GetGas()},
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tx.GetMsgs(), protoTx.GetMemo(),
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), nil
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}
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