261f86fdf2
* bump sdk version to v0.39.0 candidate * updates * update evm * bump commit * more changes * build * genesis * fix tests * fix tests * bump commit * bump commit * bump commit * add keygen func * bump version to 0.39.0-rc0 * update AnteHandler * fix TxDecoder * lint * fix test * update statedb * changelog * fixes * remove extra files * update make test-import * rename test * bump SDK version to final release * update to 0.39.1-rc1 * fix evm tests * update RPC * minor fixes * update to rc2 * bump to v0.39.1 * fix personal API * fix string type cast ambiguity (#449) * init * fix estimate gas test * minor genesis change * remove comments from unstable commit (stargate release) Co-authored-by: Alessio Treglia <quadrispro@ubuntu.com>
130 lines
4.6 KiB
Go
130 lines
4.6 KiB
Go
package ante
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import (
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sdk "github.com/cosmos/cosmos-sdk/types"
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sdkerrors "github.com/cosmos/cosmos-sdk/types/errors"
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"github.com/cosmos/cosmos-sdk/x/auth"
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authante "github.com/cosmos/cosmos-sdk/x/auth/ante"
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"github.com/cosmos/cosmos-sdk/x/auth/types"
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"github.com/cosmos/cosmos-sdk/x/bank"
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"github.com/cosmos/ethermint/crypto"
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evmtypes "github.com/cosmos/ethermint/x/evm/types"
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tmcrypto "github.com/tendermint/tendermint/crypto"
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)
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func init() {
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crypto.RegisterCodec(types.ModuleCdc)
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}
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const (
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// TODO: Use this cost per byte through parameter or overriding NewConsumeGasForTxSizeDecorator
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// which currently defaults at 10, if intended
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// memoCostPerByte sdk.Gas = 3
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secp256k1VerifyCost uint64 = 21000
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)
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// NewAnteHandler returns an ante handler responsible for attempting to route an
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// Ethereum or SDK transaction to an internal ante handler for performing
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// transaction-level processing (e.g. fee payment, signature verification) before
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// being passed onto it's respective handler.
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func NewAnteHandler(ak auth.AccountKeeper, bk bank.Keeper, sk types.SupplyKeeper) sdk.AnteHandler {
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return func(
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ctx sdk.Context, tx sdk.Tx, sim bool,
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) (newCtx sdk.Context, err error) {
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var anteHandler sdk.AnteHandler
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switch tx.(type) {
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case auth.StdTx:
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anteHandler = sdk.ChainAnteDecorators(
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authante.NewSetUpContextDecorator(), // outermost AnteDecorator. SetUpContext must be called first
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authante.NewMempoolFeeDecorator(),
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authante.NewValidateBasicDecorator(),
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authante.NewValidateMemoDecorator(ak),
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authante.NewConsumeGasForTxSizeDecorator(ak),
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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.NewDeductFeeDecorator(ak, sk),
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authante.NewSigGasConsumeDecorator(ak, sigGasConsumer),
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authante.NewSigVerificationDecorator(ak),
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authante.NewIncrementSequenceDecorator(ak), // innermost AnteDecorator
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)
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case evmtypes.MsgEthereumTx:
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anteHandler = sdk.ChainAnteDecorators(
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NewEthSetupContextDecorator(), // outermost AnteDecorator. EthSetUpContext must be called first
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NewEthMempoolFeeDecorator(),
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NewEthSigVerificationDecorator(),
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NewAccountVerificationDecorator(ak, bk),
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NewNonceVerificationDecorator(ak),
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NewEthGasConsumeDecorator(ak, sk),
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NewIncrementSenderSequenceDecorator(ak), // innermost AnteDecorator.
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)
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default:
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return ctx, sdkerrors.Wrapf(sdkerrors.ErrUnknownRequest, "invalid transaction type: %T", tx)
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}
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return anteHandler(ctx, tx, sim)
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}
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}
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// sigGasConsumer overrides the DefaultSigVerificationGasConsumer from the x/auth
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// module on the SDK. It doesn't allow ed25519 nor multisig thresholds.
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func sigGasConsumer(
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meter sdk.GasMeter, sig []byte, pubkey tmcrypto.PubKey, params types.Params,
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) error {
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switch pubkey.(type) {
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case crypto.PubKeySecp256k1:
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meter.ConsumeGas(secp256k1VerifyCost, "ante verify: secp256k1")
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return nil
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case tmcrypto.PubKey:
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meter.ConsumeGas(secp256k1VerifyCost, "ante verify: tendermint secp256k1")
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return nil
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default:
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return sdkerrors.Wrapf(sdkerrors.ErrInvalidPubKey, "unrecognized public key type: %T", pubkey)
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}
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}
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// IncrementSequenceDecorator handles incrementing sequences of all signers.
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// Use the IncrementSequenceDecorator decorator to prevent replay attacks. Note,
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// there is no need to execute IncrementSequenceDecorator on RecheckTX since
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// CheckTx would already bump the sequence number.
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//
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// NOTE: Since CheckTx and DeliverTx state are managed separately, subsequent and
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// sequential txs orginating from the same account cannot be handled correctly in
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// a reliable way unless sequence numbers are managed and tracked manually by a
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// client. It is recommended to instead use multiple messages in a tx.
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type IncrementSequenceDecorator struct {
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ak auth.AccountKeeper
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}
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func NewIncrementSequenceDecorator(ak auth.AccountKeeper) IncrementSequenceDecorator {
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return IncrementSequenceDecorator{
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ak: ak,
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}
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}
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func (isd IncrementSequenceDecorator) AnteHandle(ctx sdk.Context, tx sdk.Tx, simulate bool, next sdk.AnteHandler) (sdk.Context, error) {
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// no need to increment sequence on RecheckTx
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if ctx.IsReCheckTx() && !simulate {
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return next(ctx, tx, simulate)
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}
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sigTx, ok := tx.(authante.SigVerifiableTx)
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if !ok {
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return ctx, sdkerrors.Wrap(sdkerrors.ErrTxDecode, "invalid transaction type")
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}
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// increment sequence of all signers
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for _, addr := range sigTx.GetSigners() {
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acc := isd.ak.GetAccount(ctx, addr)
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if err := acc.SetSequence(acc.GetSequence() + 1); err != nil {
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panic(err)
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}
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isd.ak.SetAccount(ctx, acc)
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}
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return next(ctx, tx, simulate)
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}
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