我准备允许EIP712，但tx“恢复”，函数选择器‘恢复0x08c379a

Question

我试图为事务发送许可证，但如果通过智能契约令牌函数调用，则会得到函数调用不匹配的返回。如果我通过encodeABI调用并添加相同的参数，就不会在事务中看到消息。我使用以下代码

    def build_permit(owner, spender, value, deadline, web3):
    data = {
        "types": {
            "EIP712Domain": [
                {"name": "name", "type": "string"},
                {"name": "version", "type": "string"},
                {"name": "chainId", "type": "uint256"},
                {"name": "verifyingContract", "type": "address"},
            ],
            "Permit": [
                {"name": "owner", "type": "address"},
                {"name": "spender", "type": "address"},
                {"name": "value", "type": "uint256"},
                {"name": "nonce", "type": "uint256"},
                {"name": "deadline", "type": "uint256"},
            ],
        },
        "domain": {
            "name": "TestToken", 
            "version": "1",
            "chainId": 4,
            "verifyingContract": address_token,
        },
        "primaryType": "Permit",
        "message": {
            "owner": owner,
            "spender": spender,
            "value": value,
            "nonce": web3.eth.getTransactionCount(my_account.address),
            "deadline": deadline,
        },
    }

    return encode_structured_data(data)

def test_permit():
    signer = my_account
    owner = my_account.address
    holder = signer.address
    address_token = SC.USDT("RINKEBY")
    spender = SC.ROUTER('RINKEBY')
    deadline = int(time.time()) + 3600
    #print(deadline)
    amount = web3.toWei(1, 'ether')
    usdt = token_contract(address_token,web3n(RINKEBY))
    permit = build_permit(owner, spender, amount, deadline,web3n(RINKEBY))
    signed = signer.sign_message(permit)
    tx = usdt.functions.permit(holder, spender, 1000000000000000000, int(time.time()) + 3600,  signed.v, Web3.toBytes(signed.r), Web3.toBytes(signed.s)).call()

为什么数据的开头以不同的函数开头，以及如何获得正确的签名？

response = {'error': {'code': 3, 'data': '0x08c379a000000000000000000000000000000000000000000000000000000000000000200000000000000...207369676e61747572650000', 'message': 'execution reverted: ERC20Permit: invalid signature'}, 'id': 1, 'jsonrpc': '2.0'}

0x77c24f0Af71257C0ee26e0E0a108F940D1698d53

智能手机[ { "inputs": [ { "internalType": "string", "name": "name_", "type": "string" }, { "internalType": "string", "name": "symbol_", "type": "string" }, { "internalType": "uint8", "name": "decimals_", "type": "uint8" }, { "internalType": "uint256", "name": "chainID_", "type": "uint256" }, { "internalType": "bytes32", "name": "realTokenAddress_", "type": "bytes32" }, { "internalType": "string", "name": "chainSymbol_", "type": "string" } ], "stateMutability": "nonpayable", "type": "constructor" }, { "anonymous": false, "inputs": [ { "indexed": true, "internalType": "address", "name": "owner", "type": "address" }, { "indexed": true, "internalType": "address", "name": "spender", "type": "address" }, { "indexed": false, "internalType": "uint256", "name": "value", "type": "uint256" } ], "name": "Approval", "type": "event" }, { "anonymous": false, "inputs": [ { "indexed": true, "internalType": "address", "name": "previousOwner", "type": "address" }, { "indexed": true, "internalType": "address", "name": "newOwner", "type": "address" } ], "name": "OwnershipTransferred", "type": "event" }, { "anonymous": false, "inputs": [ { "indexed": true, "internalType": "address", "name": "from", "type": "address" }, { "indexed": true, "internalType": "address", "name": "to", "type": "address" }, { "indexed": false, "internalType": "uint256", "name": "value", "type": "uint256" } ], "name": "Transfer", "type": "event" }, { "inputs": [], "name": "DOMAIN_SEPARATOR", "outputs": [ { "internalType": "bytes32", "name": "", "type": "bytes32" } ], "stateMutability": "view", "type": "function" }, { "inputs": [], "name": "_chainID", "outputs": [ { "internalType": "uint256", "name": "", "type": "uint256" } ], "stateMutability": "view", "type": "function" }, { "inputs": [], "name": "_chainSymbol", "outputs": [ { "internalType": "string", "name": "", "type": "string" } ], "stateMutability": "view", "type": "function" }, { "inputs": [], "name": "_decimals", "outputs": [ { "internalType": "uint8", "name": "", "type": "uint8" } ], "stateMutability": "view", "type": "function" }, { "inputs": [], "name": "_realTokenAddress", "outputs": [ { "internalType": "bytes32", "name": "", "type": "bytes32" } ], "stateMutability": "view", "type": "function" }, { "inputs": [], "name": "_tokenName", "outputs": [ { "internalType": "string", "name": "", "type": "string" } ], "stateMutability": "view", "type": "function" }, { "inputs": [ { "internalType": "address", "name": "owner", "type": "address" }, { "internalType": "address", "name": "spender", "type": "address" } ], "name": "allowance", "outputs": [ { "internalType": "uint256", "name": "", "type": "uint256" } ], "stateMutability": "view", "type": "function" }, { "inputs": [ { "internalType": "address", "name": "spender", "type": "address" }, { "internalType": "uint256", "name": "amount", "type": "uint256" } ], "name": "approve", "outputs": [ { "internalType": "bool", "name": "", "type": "bool" } ], "stateMutability": "nonpayable", "type": "function" }, { "inputs": [ { "internalType": "address", "name": "account", "type": "address" } ], "name": "balanceOf", "outputs": [ { "internalType": "uint256", "name": "", "type": "uint256" } ], "stateMutability": "view", "type": "function" }, { "inputs": [ { "internalType": "address", "name": "account", "type": "address" }, { "internalType": "uint256", "name": "amount", "type": "uint256" } ], "name": "burn", "outputs": [], "stateMutability": "nonpayable", "type": "function" }, { "inputs": [ { "internalType": "address", "name": "account", "type": "address" }, { "internalType": "address", "name": "spender", "type": "address" }, { "internalType": "uint256", "name": "amount", "type": "uint256" } ], "name": "burnWithAllowanceDecrease", "outputs": [], "stateMutability": "nonpayable", "type": "function" }, { "inputs": [], "name": "decimals", "outputs": [ { "internalType": "uint8", "name": "", "type": "uint8" } ], "stateMutability": "view", "type": "function" }, { "inputs": [ { "internalType": "address", "name": "spender", "type": "address" }, { "internalType": "uint256", "name": "subtractedValue", "type": "uint256" } ], "name": "decreaseAllowance", "outputs": [ { "internalType": "bool", "name": "", "type": "bool" } ], "stateMutability": "nonpayable", "type": "function" }, { "inputs": [], "name": "getChainId", "outputs": [ { "internalType": "uint256", "name": "", "type": "uint256" } ], "stateMutability": "nonpayable", "type": "function" }, { "inputs": [ { "internalType": "address", "name": "spender", "type": "address" }, { "internalType": "uint256", "name": "addedValue", "type": "uint256" } ], "name": "increaseAllowance", "outputs": [ { "internalType": "bool", "name": "", "type": "bool" } ], "stateMutability": "nonpayable", "type": "function" }, { "inputs": [ { "internalType": "address", "name": "account", "type": "address" }, { "internalType": "uint256", "name": "amount", "type": "uint256" } ], "name": "mint", "outputs": [], "stateMutability": "nonpayable", "type": "function" }, { "inputs": [ { "internalType": "address", "name": "account", "type": "address" }, { "internalType": "address", "name": "spender", "type": "address" }, { "internalType": "uint256", "name": "amount", "type": "uint256" } ], "name": "mintWithAllowance", "outputs": [], "stateMutability": "nonpayable", "type": "function" }, { "inputs": [], "name": "name", "outputs": [ { "internalType": "string", "name": "", "type": "string" } ], "stateMutability": "view", "type": "function" }, { "inputs": [ { "internalType": "address", "name": "owner", "type": "address" } ], "name": "nonces", "outputs": [ { "internalType": "uint256", "name": "", "type": "uint256" } ], "stateMutability": "view", "type": "function" }, { "inputs": [], "name": "owner", "outputs": [ { "internalType": "address", "name": "", "type": "address" } ], "stateMutability": "view", "type": "function" }, { "inputs": [ { "internalType": "address", "name": "owner", "type": "address" }, { "internalType": "address", "name": "spender", "type": "address" }, { "internalType": "uint256", "name": "value", "type": "uint256" }, { "internalType": "uint256", "name": "deadline", "type": "uint256" }, { "internalType": "uint8", "name": "v", "type": "uint8" }, { "internalType": "bytes32", "name": "r", "type": "bytes32" }, { "internalType": "bytes32", "name": "s", "type": "bytes32" } ], "name": "permit", "outputs": [], "stateMutability": "nonpayable", "type": "function" }, { "inputs": [], "name": "renounceOwnership", "outputs": [], "stateMutability": "nonpayable", "type": "function" }, { "inputs": [], "name": "symbol", "outputs": [ { "internalType": "string", "name": "", "type": "string" } ], "stateMutability": "view", "type": "function" }, { "inputs": [], "name": "totalSupply", "outputs": [ { "internalType": "uint256", "name": "", "type": "uint256" } ], "stateMutability": "view", "type": "function" }, { "inputs": [ { "internalType": "address", "name": "recipient", "type": "address" }, { "internalType": "uint256", "name": "amount", "type": "uint256" } ], "name": "transfer", "outputs": [ { "internalType": "bool", "name": "", "type": "bool" } ], "stateMutability": "nonpayable", "type": "function" }, { "inputs": [ { "internalType": "address", "name": "sender", "type": "address" }, { "internalType": "address", "name": "recipient", "type": "address" }, { "internalType": "uint256", "name": "amount", "type": "uint256" } ], "name": "transferFrom", "outputs": [ { "internalType": "bool", "name": "", "type": "bool" } ], "stateMutability": "nonpayable", "type": "function" }, { "inputs": [ { "internalType": "address", "name": "newOwner", "type": "address" } ], "name": "transferOwnership", "outputs": [], "stateMutability": "nonpayable", "type": "function" } ]

Answer 1

你还没有和我分享你的聪明合同，所以我只能胡思乱想了。我也遇到了同样的问题，在我的代码中，返回的encode_structured_data的顺序与我在智能契约中定义的不一样。检查作为encode_structured_data返回的内容以及如何在智能契约中定义这些数据(如果有此数据，请检查该数据的结构以及_hash函数。如果你也有这个，不要在_hashTypedDataV4中留下任何间距。)