feat(eip4844): Eip4844 blob tx (#527)

Author: mask-pp

pkg/rpc/txblob.go

@@ -0,0 +1,140 @@
+package rpc
+
+import (
+	"errors"
+	"fmt"
+	"github.com/ethereum/go-ethereum"
+	"github.com/ethereum/go-ethereum/accounts/abi/bind"
+	"github.com/ethereum/go-ethereum/consensus/misc/eip4844"
+	"github.com/ethereum/go-ethereum/core/types"
+	"github.com/ethereum/go-ethereum/crypto/kzg4844"
+	"github.com/holiman/uint256"
+	"math/big"
+)
+
+func (c *EthClient) TransactBlobTx(opts *bind.TransactOpts, data []byte) (*types.Transaction, error) {
+	// Sign the transaction and schedule it for execution
+	if opts.Signer == nil {
+		return nil, errors.New("no signer to authorize the transaction with")
+	}
+	// Create blob tx.
+	rawTx, err := c.createBlobTx(opts, data)
+	if err != nil {
+		return nil, err
+	}
+	signedTx, err := opts.Signer(opts.From, rawTx)
+	if err != nil {
+		return nil, err
+	}
+	if opts.NoSend {
+		return signedTx, nil
+	}
+	if err := c.SendTransaction(opts.Context, signedTx); err != nil {
+		return nil, err
+	}
+	return signedTx, nil
+}
+
+func (c *EthClient) createBlobTx(opts *bind.TransactOpts, data []byte) (*types.Transaction, error) {
+	header, err := c.HeaderByNumber(opts.Context, nil)
+	if err != nil {
+		return nil, err
+	}
+	// Estimate TipCap
+	gasTipCap := opts.GasTipCap
+	if gasTipCap == nil {
+		tip, err := c.SuggestGasTipCap(opts.Context)
+		if err != nil {
+			return nil, err
+		}
+		gasTipCap = tip
+	}
+	// Estimate FeeCap
+	gasFeeCap := opts.GasFeeCap
+	if gasFeeCap == nil {
+		gasFeeCap = new(big.Int).Add(
+			gasTipCap,
+			new(big.Int).Mul(header.BaseFee, big.NewInt(2)),
+		)
+	}
+	if gasFeeCap.Cmp(gasTipCap) < 0 {
+		return nil, fmt.Errorf("maxFeePerGas (%v) < maxPriorityFeePerGas (%v)", gasFeeCap, gasTipCap)
+	}
+	// Estimate GasLimit
+	gasLimit := opts.GasLimit
+	if opts.GasLimit == 0 {
+		var err error
+		gasLimit, err = c.EstimateGas(nil, ethereum.CallMsg{
+			From:      opts.From,
+			To:        nil,
+			GasPrice:  nil,
+			GasTipCap: gasTipCap,
+			GasFeeCap: gasFeeCap,
+			Value:     nil,
+			Data:      nil,
+		})
+		if err != nil {
+			return nil, err
+		}
+	}
+	// create the transaction
+	nonce, err := c.getNonce(opts)
+	if err != nil {
+		return nil, err
+	}
+	chainID, err := c.ChainID(opts.Context)
+	if err != nil {
+		return nil, err
+	}
+
+	sidecar, err := makeSidecarWithSingleBlob(data)
+	if err != nil {
+		return nil, err
+	}
+
+	var blobFeeCap uint64 = 100066
+	if header.ExcessBlobGas != nil {
+		blobFeeCap = *header.ExcessBlobGas
+	}
+
+	baseTx := &types.BlobTx{
+		ChainID:    uint256.NewInt(chainID.Uint64()),
+		Nonce:      nonce,
+		GasTipCap:  uint256.NewInt(gasTipCap.Uint64()),
+		GasFeeCap:  uint256.NewInt(gasFeeCap.Uint64()),
+		Gas:        gasLimit,
+		BlobFeeCap: uint256.MustFromBig(eip4844.CalcBlobFee(blobFeeCap)),
+		BlobHashes: sidecar.BlobHashes(),
+		Sidecar:    sidecar,
+	}
+	return types.NewTx(baseTx), nil
+}
+
+func (c *EthClient) getNonce(opts *bind.TransactOpts) (uint64, error) {
+	if opts.Nonce == nil {
+		return c.PendingNonceAt(opts.Context, opts.From)
+	} else {
+		return opts.Nonce.Uint64(), nil
+	}
+}
+
+func makeSidecarWithSingleBlob(data []byte) (*types.BlobTxSidecar, error) {
+	if len(data) > BlobBytes {
+		return nil, fmt.Errorf("data is bigger than 128k")
+	}
+	blob := kzg4844.Blob{}
+	copy(blob[:], data)
+	commitment, err := kzg4844.BlobToCommitment(blob)
+	if err != nil {
+		return nil, err
+	}
+	proof, err := kzg4844.ComputeBlobProof(blob, commitment)
+	if err != nil {
+		return nil, err
+	}
+	return &types.BlobTxSidecar{
+		Blobs:       []kzg4844.Blob{blob},
+		Commitments: []kzg4844.Commitment{commitment},
+		Proofs:      []kzg4844.Proof{proof},
+	}, nil
+}

pkg/rpc/txblob_test.go

@@ -0,0 +1,45 @@
+package rpc
+
+import (
+	"context"
+	"os"
+	"testing"
+	"time"
+
+	"github.com/ethereum/go-ethereum/accounts/abi/bind"
+	"github.com/ethereum/go-ethereum/common"
+	"github.com/ethereum/go-ethereum/crypto"
+	"github.com/stretchr/testify/assert"
+)
+
+func TestBlockTx(t *testing.T) {
+	ctx, cancel := context.WithCancel(context.Background())
+	defer cancel()
+
+	url := "https://rpc.ankr.com/eth_goerli" //os.Getenv("L1_NODE_WS_ENDPOINT")
+	l1Client, err := NewEthClient(ctx, url, time.Second*20)
+	assert.NoError(t, err)
+
+	priv := os.Getenv("L1_PROPOSER_PRIVATE_KEY")
+	sk, err := crypto.ToECDSA(common.FromHex(priv))
+	assert.NoError(t, err)
+
+	chainID, err := l1Client.ChainID(ctx)
+	assert.NoError(t, err)
+
+	opts, err := bind.NewKeyedTransactorWithChainID(sk, chainID)
+	assert.NoError(t, err)
+	opts.Context = ctx
+	//opts.NoSend = true
+
+	balance, err := l1Client.BalanceAt(ctx, opts.From, nil)
+	assert.NoError(t, err)
+	t.Logf("address: %s, balance: %s", opts.From.String(), balance.String())
+
+	tx, err := l1Client.TransactBlobTx(opts, []byte("s"))
+	assert.NoError(t, err)
+
+	receipt, err := bind.WaitMined(ctx, l1Client, tx)
+	assert.NoError(t, err)
+	t.Log(receipt)
+}

pkg/rpc/utils.go

@@ -14,6 +14,8 @@ import (
 	"github.com/ethereum/go-ethereum/core/txpool"
 	"github.com/ethereum/go-ethereum/core/types"
 	"github.com/ethereum/go-ethereum/log"
+	"github.com/ethereum/go-ethereum/params"
+
 	"github.com/taikoxyz/taiko-client/bindings"
 	"github.com/taikoxyz/taiko-client/bindings/encoding"
 	"github.com/taikoxyz/taiko-client/internal/utils"
@@ -23,6 +25,7 @@ var (
 	ZeroAddress                common.Address
 	waitReceiptPollingInterval = 3 * time.Second
 	defaultWaitReceiptTimeout  = 1 * time.Minute
+	BlobBytes                  = params.BlobTxBytesPerFieldElement * params.BlobTxFieldElementsPerBlob
 )
 
 // GetProtocolStateVariables gets the protocol states from TaikoL1 contract.

proposer/proposer.go

@@ -307,10 +307,27 @@ func (p *Proposer) ProposeOp(ctx context.Context) error {
 	return nil
 }
 
+func (p *Proposer) sendTxListByBlobTx(ctx context.Context, txListBytes []byte) (*types.Transaction, error) {
+	blobOpts, err := getTxOpts(ctx, p.rpc.L1, p.L1ProposerPrivKey, p.rpc.L1ChainID, nil)
+	if err != nil {
+		return nil, err
+	}
+	tx, err := p.rpc.L1.TransactBlobTx(blobOpts, txListBytes)
+	if err != nil {
+		return nil, err
+	}
+	// Wait until blob tx is mined.
+	if _, err := bind.WaitMined(ctx, p.rpc.L1, tx); err != nil {
+		return nil, err
+	}
+
+	return tx, nil
+}
+
 // sendProposeBlockTx tries to send a TaikoL1.proposeBlock transaction.
 func (p *Proposer) sendProposeBlockTx(
 	ctx context.Context,
-	txListBytes []byte,
+	blobHash common.Hash,
 	nonce *uint64,
 	assignment *encoding.ProverAssignment,
 	assignedProver common.Address,
@@ -376,7 +393,7 @@ func (p *Proposer) sendProposeBlockTx(
 		ExtraData:         rpc.StringToBytes32(p.ExtraData),
 		TxListByteOffset:  common.Big0,
 		TxListByteSize:    common.Big0,
-		BlobHash:          [32]byte{},
+		BlobHash:          blobHash,
 		CacheBlobForReuse: false,
 		ParentMetaHash:    parentMetaHash,
 		HookCalls:         hookCalls,
@@ -388,8 +405,9 @@ func (p *Proposer) sendProposeBlockTx(
 	proposeTx, err := p.rpc.TaikoL1.ProposeBlock(
 		opts,
 		encodedParams,
-		txListBytes,
+		nil,
 	)
+
 	if err != nil {
 		return nil, encoding.TryParsingCustomError(err)
 	}
@@ -415,16 +433,26 @@ func (p *Proposer) ProposeTxList(
 
 	var (
 		isReplacement bool
+		blobTx        *types.Transaction
 		tx            *types.Transaction
 	)
 	if err := backoff.Retry(
 		func() error {
 			if ctx.Err() != nil {
 				return nil
 			}
+
+			// Send tx list by blob tx.
+			if blobTx == nil {
+				blobTx, err = p.sendTxListByBlobTx(ctx, txListBytes)
+				if err != nil {
+					return nil
+				}
+			}
+
 			if tx, err = p.sendProposeBlockTx(
 				ctx,
-				txListBytes,
+				blobTx.BlobHashes()[0],
 				nonce,
 				assignment,
 				proverAddress,