Web3.js: Cannot decode receipt log data

[aminlatifi]

Expected behavior

We were using _decodeEventABI from web3-eth-contract package to decode receipt log data and it had been working for long time. But it's not working as expected for few days! I tried another library abi-decoder which uses web3-eth-abi library under the hood and it has the same problem.

Actual behavior

The decode function produces this error message on decoding data:
(node:55476) UnhandledPromiseRejectionWarning: Error: data out-of-bounds (length=164, offset=192, code=BUFFER_OVERRUN, version=abi/5.0.0-beta.153)
Finally I modified the log data and filled it with zero value except the part I needed and the code workes as before.

It's the code that has modified, if you remove the part that modifies the log.data the error appears

https://github.com/Giveth/feathers-giveth/blob/b164131e588f640a8bd83136ad6c867fb7b6733b/scripts/utils/getHomeTxHash.js#L27-L55

This is the smart contract code and abi: https://rinkeby.etherscan.io/address/0xff9cd5140e79377feb23f6dfaf1f8b558c0fe621#code
And we tried to decode the log data of this transaction: https://rinkeby.etherscan.io/tx/0xa20e3db910d95a5a23692eef523bd6e98152d4759782e6097d3f6eaccf17ff46

Environment

Node v8.17.0
Web3 1.2.11
OS Linux and MacOS

[aminlatifi]

Maybe this issue is related: https://github.com/ConsenSys/abi-decoder/issues/56

[GriffGreen]

Any ideas?

[aminlatifi]

It's a sample code to regenerate the error:

const abiDecoder = require('abi-decoder'); // NodeJS
const Web3 = require('web3');

const testABI = [{"constant":true,"inputs":[],"name":"escapeHatchCaller","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_newOwner","type":"address"}],"name":"changeOwnership","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"sender","type":"address"},{"name":"mainToken","type":"address"},{"name":"amount","type":"uint256"},{"name":"homeTx","type":"bytes32"},{"name":"data","type":"bytes"}],"name":"deposit","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[],"name":"unpause","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"_from","type":"address"},{"name":"_to","type":"address"},{"name":"_amount","type":"uint256"}],"name":"onTransfer","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"paused","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_dac","type":"address"}],"name":"removeOwnership","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"_newOwnerCandidate","type":"address"}],"name":"proposeOwnership","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"liquidPledging","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[],"name":"acceptOwnership","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"mainToken","type":"address"},{"name":"tokenName","type":"string"},{"name":"decimals","type":"uint8"},{"name":"tokenSymbol","type":"string"}],"name":"addToken","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[],"name":"pause","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"name":"_token","type":"address"}],"name":"isTokenEscapable","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"owner","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_token","type":"address"}],"name":"escapeHatch","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"name":"","type":"address"}],"name":"inverseTokenMapping","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"name":"","type":"address"}],"name":"tokenMapping","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"depositor","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"newOwnerCandidate","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_newEscapeHatchCaller","type":"address"}],"name":"changeHatchEscapeCaller","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"recipient","type":"address"},{"name":"sideToken","type":"address"},{"name":"amount","type":"uint256"}],"name":"withdraw","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"_owner","type":"address"},{"name":"_spender","type":"address"},{"name":"_amount","type":"uint256"}],"name":"onApprove","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"tokenFactory","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"newDepositor","type":"address"}],"name":"changeDepositor","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"sideToken","type":"address"},{"name":"amount","type":"uint256"}],"name":"withdraw","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"_owner","type":"address"}],"name":"proxyPayment","outputs":[{"name":"","type":"bool"}],"payable":true,"stateMutability":"payable","type":"function"},{"constant":true,"inputs":[],"name":"escapeHatchDestination","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"inputs":[{"name":"_escapeHatchCaller","type":"address"},{"name":"_escapeHatchDestination","type":"address"},{"name":"_tokenFactory","type":"address"},{"name":"_liquidPledging","type":"address"},{"name":"_depositor","type":"address"},{"name":"mainTokens","type":"address[]"},{"name":"sideTokens","type":"address[]"}],"payable":false,"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"name":"sender","type":"address"},{"indexed":false,"name":"token","type":"address"},{"indexed":false,"name":"amount","type":"uint256"},{"indexed":false,"name":"homeTx","type":"bytes32"},{"indexed":false,"name":"data","type":"bytes"}],"name":"Deposit","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"recipient","type":"address"},{"indexed":false,"name":"token","type":"address"},{"indexed":false,"name":"amount","type":"uint256"}],"name":"Withdraw","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"mainToken","type":"address"},{"indexed":false,"name":"sideToken","type":"address"}],"name":"TokenAdded","type":"event"},{"anonymous":false,"inputs":[],"name":"Pause","type":"event"},{"anonymous":false,"inputs":[],"name":"Unpause","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"name":"token","type":"address"}],"name":"EscapeHatchBlackistedToken","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"name":"token","type":"address"},{"indexed":false,"name":"amount","type":"uint256"}],"name":"EscapeHatchCalled","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"by","type":"address"},{"indexed":true,"name":"to","type":"address"}],"name":"OwnershipRequested","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"from","type":"address"},{"indexed":true,"name":"to","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"anonymous":false,"inputs":[],"name":"OwnershipRemoved","type":"event"}]
abiDecoder.addABI(testABI);

const nodeUrl = 'wss://rinkeby.eth.aragon.network/ws'; // Use any other provider you want
const instantiateWeb3 = url => {
    const provider =
      url && url.startsWith('ws')
        ? new Web3.providers.WebsocketProvider(url, { 
            clientConfig: {
              maxReceivedFrameSize: 1000000000,
              maxReceivedMessageSize: 1000000000,
            },
          })
        : new Web3.providers.HttpProvider(url);
    return new Web3(provider);
  };


const main = async()=> {
    const web3 = await instantiateWeb3(nodeUrl);
    const receipt = await web3.eth.getTransactionReceipt('0x813647d395204e300e70203a9349192e10bb3c9e0ab9041f27a383717c97d0ec');
    const decodedLogs = abiDecoder.decodeLogs(receipt.logs);
    console.log(JSON.stringify(decodedLogs, null, 2));
}

main()

[GregTheGreek]

hey sorry this slipped my radar... Thanks for the code snippet. We were going to get a release going this monday, but let me try and squeeze a fix for this before then!

[GriffGreen]

Chainsafe is maintaining web3.js?!?!? You guys are everywhere!

[GregTheGreek]

I dont think this is an issue with web3.js, looks like its the decoder. i'll close this for now, please re-open if anything changes

[aminlatifi]

I did a hack to make the decoder work

function eventDecodersFromArtifact(artifact) {
  return artifact.compilerOutput.abi
    .filter(method => method.type === 'event')
    .reduce(
      (decoders, event) => ({
        ...decoders,
        [event.name]: log => {
          const decoder = Contract.prototype._decodeEventABI.bind(event);
          log.data += '0'.repeat(100);
          return decoder(log);
        },
      }),
      {},
    );
}

We use the web3 decoding api, we have used it for years but it has problem for about 10 days. We doubt new version of geth is responsible for such error.

[aminlatifi]

I dont think this is an issue with web3.js, looks like its the decoder. i'll close this for now, please re-open if anything changes

Also fetching past events is another place throws error!

liquidPledging.$contract.getPastEvents('allEvents', {
                fromBlock,
                toBlock: fetchBlockNum,
              })

The error message is:

error: Cannot read property 'Symbol(Symbol.iterator)' of undefined
error: Exit message: TypeError: Cannot read property 'Symbol(Symbol.iterator)' of undefined

[wbt]

Also check to make sure you're not reusing a WebSocket provider per this issue as that can cause an expected response element to be undefined.

[GregTheGreek]

error: Cannot read property 'Symbol(Symbol.iterator)' of undefined

Not familiar with the notation being used (jquery?) - the er looks like liquidPledging is undefined, or the $ is undefined..

[aminlatifi]

We found the error root cause,
It's related to ethers version 5.x.x maybe and discussed here: https://github.com/ethers-io/ethers.js/issues/992
We had upgraded web3 and ethers version was upgraded from 4.x.x to 5.x.x eventually.

[aminlatifi]

Particularly this comment shows the error concisely:
https://github.com/ethers-io/ethers.js/issues/992#issuecomment-671896346
You may need to downgrade ethers version in web3 project too, or apply some patch on that.

[ricmoo]

I've added support in ethers 5.0.12 for supporting legacy Solidity 0.4 external event data. I believe web3 depends on the abi package directly, in which case web3 should upgrade to @ethersproject/abi version 5.0.4.

For more details, please see https://github.com/ethers-io/ethers.js/issues/891.

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