Websocket not working

[m-bo-one]

when I am trying to connect blockscout exporer with wss://godwoken-testnet-v1.ckbapp.dev/ws url (https://github.com/nervosnetwork/godwoken-info/tree/main/testnet_v1_1#godwoken-web3-rpc), explorer, I am getting

2022-06-02T16:46:55.156 [info] TLS :client: In state :wait_cert_cr at ssl_handshake.erl:1971 generated CLIENT ALERT: Fatal - Certificate Expired

If I remove wss, just ws without tls, blockscout just hang. I also verified, that through websocat I am getting an error

websocat wss://godwoken-testnet-v1.ckbapp.dev/ws
websocat: WebSocketError: Received unexpected status code (405 Method Not Allowed)
websocat: error running

[e00dan]

I have tried to reproduce the issue and I can't connect to WebSocket provider as well:

Full code:

const Web3 = require('web3');

/**
 * BEFORE USING THIS SCRIPT MAKE SURE TO REPLACE:
 * - <YOUR_CONTRACT_ABI>
 * - <YOUR_CONTRACT_ADDRESS>
 * - CONTRACT_ADDRESS variable value
 * - YOUR_READ_FUNCTION_NAME method name
 * - YOUR_WRITE_FUNCTION_NAME method name
 */

const ACCOUNT_PRIVATE_KEY = '0xd9066ff9f753a1898709b568119055660a77d9aae4d7a4ad677b8fb3d2a571e5'; // Replace this with your Ethereum private key with funds on Layer 2.
const CONTRACT_ABI = [
    {
      "inputs": [],
      "stateMutability": "payable",
      "type": "constructor"
    },
    {
      "inputs": [],
      "name": "get",
      "outputs": [
        {
          "internalType": "uint256",
          "name": "",
          "type": "uint256"
        }
      ],
      "stateMutability": "view",
      "type": "function"
    },
    {
      "inputs": [
        {
          "internalType": "uint256",
          "name": "x",
          "type": "uint256"
        }
      ],
      "name": "set",
      "outputs": [],
      "stateMutability": "payable",
      "type": "function"
    }
  ]; // this should be an Array []
const CONTRACT_ADDRESS = '0xd4A8b3018f0c79f6BD3375C89a5Db47ca11A1C35';

const web3 = new Web3('wss://godwoken-testnet-v1.ckbapp.dev/ws');

const account = web3.eth.accounts.wallet.add(ACCOUNT_PRIVATE_KEY);

async function readCall() {
    const contract = new web3.eth.Contract(CONTRACT_ABI, CONTRACT_ADDRESS);

    const callResult = await contract.methods.get().call({
        from: account.address
    });

    console.log(`Read call result: ${callResult}`);
}

async function writeCall() {
    const contract = new web3.eth.Contract(CONTRACT_ABI, CONTRACT_ADDRESS);

    const tx = contract.methods.set(333).send(
        {
            from: account.address,
            gas: 6000000
        }
    );

    tx.on('transactionHash', hash => console.log(`Write call transaction hash: ${hash}`));

    const receipt = await tx;

    console.log('Write call transaction receipt: ', receipt);
}

(async () => {
    const balance = BigInt(await web3.eth.getBalance(account.address));

    if (balance === 0n) {
        console.log(`Insufficient balance. Can't issue a smart contract call. Please deposit funds to your Ethereum address: ${account.address}`);
        return;
    }

    console.log('Calling contract...');

    // Check smart contract state before state change.
    await readCall();

    // Change smart contract state.
    await writeCall();

    // Check smart contract state after state change.
    await readCall();
})();

[RetricSu]

@jiangxianliang007 seems the testnet TLS is broken? I check web3 websocket works on local development.

[RetricSu]

we have updated the testnet ws configuration, can you check if it works now? @Kuzirashi @m-bo-one

[e00dan]

we have updated the testnet ws configuration, can you check if it works now? @Kuzirashi @m-bo-one

Works for me now

[m-bo-one]

websockat works, however blockscout has the same issue:

2022-06-06T12:48:57.898 [notice] TLS :client: In state :wait_cert_cr at ssl_handshake.erl:2017 generated CLIENT ALERT: Fatal - Handshake Failure
 - {:bad_cert, :hostname_check_failed}

[blckngm]

websockat works, however blockscout has the same issue:

2022-06-06T12:48:57.898 [notice] TLS :client: In state :wait_cert_cr at ssl_handshake.erl:2017 generated CLIENT ALERT: Fatal - Handshake Failure
 - {:bad_cert, :hostname_check_failed}

Could be caused by this OTP problem described here:

By default OTP does not permit wildcards in SAN extensions, unless you opt-in using {customize_hostname_check, [{match_fun, public_key:pkix_verify_hostname_match_fun(https)}]}

(or, to be precise, by default it recognises wildcards only in Subject CN, and only when no SAN extension is present)

From: https://github.com/benoitc/hackney/issues/624#issuecomment-631340823