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add EIP-4844 support to RLP parser
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Extend RLP view with EIP-4844 specific fields.
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@etan-status
etan-status committed Aug 24, 2023
1 parent a027807 commit a14d57e
Showing 1 changed file with 61 additions and 5 deletions.
66 changes: 61 additions & 5 deletions index.html
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Original file line number Diff line number Diff line change
Expand Up @@ -496,6 +496,14 @@
<td class="kvKey"><a href="https://eips.ethereum.org/EIPS/eip-2930" target="_blank">Access list</a><span id="selectedTransactionRlpAccessListLabel"></span></td>
<td class="kvValue"><span id="selectedTransactionRlpAccessListLength"></span> <span class="description">(<span id="selectedTransactionRlpAccessListDescription"></span>)</span> <span id="selectedTransactionRlpAccessList"></span></td>
</tr>
<tr id="selectedTransactionRlpHasMaxFeePerBlobGas">
<td class="kvKey"><a href="https://eips.ethereum.org/EIPS/eip-4844" target="_blank">Max fee per blob gas</a></td>
<td class="kvValue"><span id="selectedTransactionRlpMaxFeePerBlobGasLength"></span> <span id="selectedTransactionRlpMaxFeePerBlobGas"></span> <span class="description">(<span id="selectedTransactionRlpMaxFeePerBlobGasDescription"></span>)</span></td>
</tr>
<tr id="selectedTransactionRlpHasBlobVersionedHashes">
<td class="kvKey"><a href="https://eips.ethereum.org/EIPS/eip-4844" target="_blank">Blob versioned hashes</a></td>
<td class="kvValue"><span id="selectedTransactionRlpBlobVersionedHashesLength"></span> <span class="description">(<span id="selectedTransactionRlpBlobVersionedHashesDescription"></span>)</span> <span id="selectedTransactionRlpBlobVersionedHashes"></span></td>
</tr>
<tr>
<td class="kvKey">V</td>
<td class="kvValue"><span id="selectedTransactionRlpVLength"></span> <span id="selectedTransactionRlpV"></span> <span class="description">(<span id="selectedTransactionRlpVDescription"></span>)</span></td>
Expand Down Expand Up @@ -1160,7 +1168,13 @@
assert(bytes.length > 0);
const eip2718Type = bytes[0];

if (eip2718Type === 0x02) {
if (eip2718Type === 0x03) {
document.getElementById('selectedTransactionRlpHasEip2718Type').hidden = false;
document.getElementById('selectedTransactionRlpEip2718Type').innerText = byteToHexString(eip2718Type);
document.getElementById('selectedTransactionRlpEip2718TypeDescription').innerHTML =
'<a href="https://eips.ethereum.org/EIPS/eip-4844" target="_blank">EIP-4844</a>';
bytes = bytes.slice(1);
} else if (eip2718Type === 0x02) {
document.getElementById('selectedTransactionRlpHasEip2718Type').hidden = false;
document.getElementById('selectedTransactionRlpEip2718Type').innerText = byteToHexString(eip2718Type);
document.getElementById('selectedTransactionRlpEip2718TypeDescription').innerHTML =
Expand All @@ -1186,7 +1200,7 @@
document.getElementById('selectedTransactionRlpLength').innerText = arrayToHexString(length);
document.getElementById('selectedTransactionRlpLengthDescription').innerText = lengthInfo.dataLen + ' bytes';

if (eip2718Type === 0x02 || eip2718Type === 0x01) {
if (eip2718Type === 0x03 || eip2718Type === 0x02 || eip2718Type === 0x01) {
const chainIdInfo = decodeRlpLength(bytes);
assert(chainIdInfo.type === 'str');
const chainIdLength = bytes.slice(0, chainIdInfo.offset);
Expand All @@ -1210,7 +1224,7 @@
document.getElementById('selectedTransactionRlpNonce').innerText = arrayToHexString(nonce);
document.getElementById('selectedTransactionRlpNonceDescription').innerText = arrayToDecString(nonce);

if (eip2718Type === 0x02) {
if (eip2718Type === 0x03 || eip2718Type === 0x02) {
const maxPriorityFeePerGasInfo = decodeRlpLength(bytes);
assert(maxPriorityFeePerGasInfo.type === 'str');
const maxPriorityFeePerGasLength = bytes.slice(0, maxPriorityFeePerGasInfo.offset);
Expand Down Expand Up @@ -1286,7 +1300,7 @@
}
document.getElementById('selectedTransactionRlpInputDescription').innerText = toHumanReadableByteCountString(inputInfo.dataLen);

if (eip2718Type === 0x02 || eip2718Type === 0x01) {
if (eip2718Type === 0x03 || eip2718Type === 0x02 || eip2718Type === 0x01) {
const accessListInfo = decodeRlpLength(bytes);
assert(accessListInfo.type === 'list');
const accessListLength = bytes.slice(0, accessListInfo.offset);
Expand Down Expand Up @@ -1357,6 +1371,48 @@
document.getElementById('selectedTransactionRlpHasAccessList').hidden = true;
}

if (eip2718Type === 0x03) {
const maxFeePerBlobGasInfo = decodeRlpLength(bytes);
assert(maxFeePerBlobGasInfo.type === 'str');
const maxFeePerBlobGasLength = bytes.slice(0, maxFeePerBlobGasInfo.offset);
bytes = bytes.slice(maxFeePerBlobGasInfo.offset);
const maxFeePerBlobGas = bytes.slice(0, maxFeePerBlobGasInfo.dataLen);
bytes = bytes.slice(maxFeePerBlobGasInfo.dataLen);
document.getElementById('selectedTransactionRlpHasMaxFeePerBlobGas').hidden = false;
document.getElementById('selectedTransactionRlpMaxFeePerBlobGasLength').innerText = arrayToHexString(maxFeePerBlobGasLength);
document.getElementById('selectedTransactionRlpMaxFeePerBlobGas').innerText = arrayToHexString(maxFeePerBlobGas);
document.getElementById('selectedTransactionRlpMaxFeePerBlobGasDescription').innerText = arrayToGweiString(maxFeePerBlobGas) + ' Gwei';
} else {
document.getElementById('selectedTransactionRlpHasMaxFeePerBlobGas').hidden = true;
}

if (eip2718Type === 0x03) {
const blobVersionedHashesInfo = decodeRlpLength(accessTuple);
assert(blobVersionedHashesInfo.type === 'list');
const blobVersionedHashesLength = bytes.slice(0, blobVersionedHashesInfo.offset);
bytes = bytes.slice(blobVersionedHashesInfo.offset);
let blobVersionedHashes = bytes.slice(0, blobVersionedHashesInfo.dataLen);
bytes = bytes.slice(blobVersionedHashesInfo.dataLen);
document.getElementById('selectedTransactionRlpHasBlobVersionedHashes').hidden = false;
document.getElementById('selectedTransactionRlpBlobVersionedHashesLength').innerText = arrayToHexString(blobVersionedHashesLength);
document.getElementById('selectedTransactionRlpBlobVersionedHashes').innerHTML = '';
document.getElementById('selectedTransactionRlpBlobVersionedHashesDescription').innerText = toHumanReadableByteCountString(blobVersionedHashesInfo.dataLen);

while (blobVersionedHashes.length) {
const blobVersionedHashInfo = decodeRlpLength(blobVersionedHashes);
assert(blobVersionedHashInfo.type === 'str');
const blobVersionedHashLength = blobVersionedHashes.slice(0, blobVersionedHashInfo.offset);
blobVersionedHashes = blobVersionedHashes.slice(blobVersionedHashInfo.offset);
const blobVersionedHash = blobVersionedHashes.slice(0, blobVersionedHashInfo.dataLen);
blobVersionedHashes = blobVersionedHashes.slice(blobVersionedHashInfo.dataLen);
document.getElementById('selectedTransactionRlpBlobVersionedHashes').innerHTML +=
'<br /><span>' + arrayToHexString(blobVersionedHashLength) + '</span> ' +
'<span>' + arrayToHexString(blobVersionedHash) + '</span>';
}
} else {
document.getElementById('selectedTransactionRlpHasBlobVersionedHashes').hidden = true;
}

const vInfo = decodeRlpLength(bytes);
assert(vInfo.type === 'str');
const vLength = bytes.slice(0, vInfo.offset);
Expand All @@ -1367,7 +1423,7 @@
document.getElementById('selectedTransactionRlpV').innerText = arrayToHexString(v);
const vNumber = Number(arrayToDecString(v));
let yParity;
if (eip2718Type === 0x02 || eip2718Type === 0x01) {
if (eip2718Type === 0x03 || eip2718Type === 0x02 || eip2718Type === 0x01) {
assert(vNumber === 0x00 || vNumber === 0x01);
yParity = vNumber;
document.getElementById('selectedTransactionRlpVDescription').innerText =
Expand Down

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