如何在经典上重放交易？

Question

我一直期待着分裂和出售我的等，并已成功地分裂与测试事务重放的经典，但主要交易没有重播24小时，我想强制重播。我有两个区块链可用。

我尝试过在ETH上使用web3.eth.getTransaction(hash)的输出，并尝试用ethereumjs-tx在经典上签名和未签名来重新创建它，但没有成功。

我还没有见过在geth中获取事务的原始十六进制来通过web3.eth.sendRawTransaction注入事务的方法

我的替代方案是执行与ETH相同的事务，但在ETC上执行。

Answer 1

假设我们有这样的tx：https://etherscan.io/tx/0x1f3f3ced1fde1cbc638b3e1ba2b12d890157977208442e8686d03fc4d332225c

1. 获取相同的输入原始数据并在不更改chaindId的情况下重新提交:让我们获取原始的tx数据：

https://etherscan.io/getRawTx?tx=0x1f3f3ced1fde1cbc638b3e1ba2b12d890157977208442e8686d03fc4d332225c

所以我们得到：

0xf8708352d1d685028fa6ae0083015f909465f4dc1a4aef2842c1ae61dfa3db7a69f25b7aff8802e45e9ccc5e1af28026a0ba87b88da31453501f9738e35d6c4f416524f92ea215d6f07b3df5f4216a41f8a0578c288d369a6f9ee073e25e745888f9099e54b604411bce1b456a6dcf3937af

现在，让我们尝试将其发送到POA.network链cURL：

curl --data '{"method":"eth_sendRawTransaction","params":["0xf8708352d1d685028fa6ae0083015f909465f4dc1a4aef2842c1ae61dfa3db7a69f25b7aff8802e45e9ccc5e1af28026a0ba87b88da31453501f9738e35d6c4f416524f92ea215d6f07b3df5f4216a41f8a0578c288d369a6f9ee073e25e745888f9099e54b604411bce1b456a6dcf3937af"],"id":1,"jsonrpc":"2.0"}' -H "Content-Type: application/json" -X POST https://poa.infura.io

响应：{"jsonrpc":"2.0","error":{"code":-32010,"message":"Invalid chain id."},"id":1}，这是因为POA.network链受EIP-155保护，不允许我们发送.

因此，让我们使用相同的tx并更改chainId值来重新提交tx。如果我们问rpc服务器getTransactionByHash

curl -X POST --data '{"jsonrpc":"2.0","method":"eth_getTransactionByHash","params":["0x1f3f3ced1fde1cbc638b3e1ba2b12d890157977208442e8686d03fc4d332225c"],"id":1}' -H "Content-Type: application/json" -X POST https://mainnet.infura.io | jq '.'

-

{
  "jsonrpc": "2.0",
  "id": 1,
  "result": {
    "blockHash": "0x35af3597e1496acef6eb972c68243709ffc214c4b4a6f160581c4e670f67dd94",
    "blockNumber": "0x5ab068",
    "from": "0x829bd824b016326a401d083b33d092293333a830",
    "gas": "0x15f90",
    "gasPrice": "0x28fa6ae00",
    "hash": "0x1f3f3ced1fde1cbc638b3e1ba2b12d890157977208442e8686d03fc4d332225c",
    "input": "0x",
    "nonce": "0x52d1d6",
    "to": "0x65f4dc1a4aef2842c1ae61dfa3db7a69f25b7aff",
    "transactionIndex": "0x52",
    "value": "0x2e45e9ccc5e1af2",
    "v": "0x26",
    "r": "0xba87b88da31453501f9738e35d6c4f416524f92ea215d6f07b3df5f4216a41f8",
    "s": "0x578c288d369a6f9ee073e25e745888f9099e54b604411bce1b456a6dcf3937af"
  }
}

现在，让我们用ethereumjs-tx将相同的tx重新发送到ETC链: POA.network有chainId = 99。

const EthereumTx = require('ethereumjs-tx')
const chain = 99;

const txParams = {
  nonce: '0x52d1d6',
  gasPrice: '0x28fa6ae00',
  gasLimit: '0x15f90',
  to: '0x65f4dc1a4aef2842c1ae61dfa3db7a69f25b7aff',
  value: '0x2e45e9ccc5e1af2',
  data: '0x',
  chainId: chain,
  r: "0xba87b88da31453501f9738e35d6c4f416524f92ea215d6f07b3df5f4216a41f8",
  s: "0x578c288d369a6f9ee073e25e745888f9099e54b604411bce1b456a6dcf3937af",
  v: chain * 2 + 35
}


const tx = new EthereumTx(txParams)

const serializedTx = tx.serialize()
console.log('0x' + serializedTx.toString('hex'))

请注意我们如何重新计算v值: v: chain *2+ 35或您可以这样做: v: chain *2+ 36 (参考：https://github.com/ethereum/EIPs/blob/master/EIPS/eip-155.md)

现在让我们运行它：node txGenerator.js和我们

0xf8718352d1d685028fa6ae0083015f909465f4dc1a4aef2842c1ae61dfa3db7a69f25b7aff8802e45e9ccc5e1af28081e9a0ba87b88da31453501f9738e35d6c4f416524f92ea215d6f07b3df5f4216a41f8a0578c288d369a6f9ee073e25e745888f9099e54b604411bce1b456a6dcf3937af

因此，让我们将其发送到rpc节点。

curl --data '{"method":"eth_sendRawTransaction","params":["0xf8718352d1d685028fa6ae0083015f909465f4dc1a4aef2842c1ae61dfa3db7a69f25b7aff8802e45e9ccc5e1af28081e9a0ba87b88da31453501f9738e35d6c4f416524f92ea215d6f07b3df5f4216a41f8a0578c288d369a6f9ee073e25e745888f9099e54b604411bce1b456a6dcf3937af"],"id":1,"jsonrpc":"2.0"}' -H "Content-Type: application/json" -X POST https://poa.infura.io

答复：{"jsonrpc":"2.0","error":{"code":-32010,"message":"Insufficient funds. The account you tried to send transaction from does not have enough funds. Required 209385510302513906 and got: 0."},"id":1}

所以我们成功地改变了V值，但是这个账户没有资金去做一个tx

类似的方式可以用于任何其他的链ID。