Transactions 以太坊交易”;失败;因为",;“恢复”&引用;警告合同执行期间遇到错误[已恢复]”;
我在以太坊的主网上有一个ERC20代币。 正常的“转移”方法是工作finde。 我构建了另一个函数“performFeelessTransaction”,为每个人支付交易费用 所以这个函数在Ropsten和Kovan上运行良好,而不是在mainnet上。我不知道为什么 这是一个失败的事务: 我的合同是: EIP20.sol:Transactions 以太坊交易”;失败;因为",;“恢复”&引用;警告合同执行期间遇到错误[已恢复]”;,transactions,ethereum,revert,Transactions,Ethereum,Revert,我在以太坊的主网上有一个ERC20代币。 正常的“转移”方法是工作finde。 我构建了另一个函数“performFeelessTransaction”,为每个人支付交易费用 所以这个函数在Ropsten和Kovan上运行良好,而不是在mainnet上。我不知道为什么 这是一个失败的事务: 我的合同是: EIP20.sol: pragma solidity ^0.5.0; 导入“/EIP20Interface.sol”; 导入“/Feeless.sol” 合同EIP20H是EIP20H接口,
pragma solidity ^0.5.0;
导入“/EIP20Interface.sol”;
导入“/Feeless.sol”
合同EIP20H是EIP20H接口,无感觉{
uint256 constant private MAX_UINT256 = 2**256 - 1;
mapping (address => uint256) public balances;
mapping (address => mapping (address => uint256)) public allowed;
/*
NOTE:
The following variables are OPTIONAL vanities. One does not have to include them.
They allow one to customise the token contract & in no way influences the core functionality.
Some wallets/interfaces might not even bother to look at this information.
*/
string public name; //fancy name: eg Simon Bucks
uint8 public decimals; //How many decimals to show.
string public symbol; //An identifier: eg SBX
address owner; // Adress of the Owner
constructor(
uint256 _initialAmount,
string memory _tokenName,
uint8 _decimalUnits,
string memory _tokenSymbol
) public {
balances[msg.sender] = _initialAmount; // Give the creator all initial tokens
totalSupply = _initialAmount; // Update total supply
name = _tokenName; // Set the name for display purposes
decimals = _decimalUnits; // Amount of decimals for display purposes
symbol = _tokenSymbol;
owner = msg.sender; // Set the symbol for display purposes
}
modifier onlyOwner() {
require (msg.sender == owner);
_;
}
function transfer(address _to, uint256 _value) public returns (bool success) {
require(balances[msg.sender] >= _value);
balances[msg.sender] -= _value;
balances[_to] += _value;
emit Transfer(msg.sender, _to, _value); //solhint-disable-line indent, no-unused-vars
return true;
}
function transferFeeless(address _to, uint256 _value) public feeless returns (bool success) {
require(balances[msgSender] >= _value);
balances[msgSender] -= _value;
balances[_to] += _value;
emit Transfer(msgSender, _to, _value); //solhint-disable-line indent, no-unused-vars
return true;
}
function transferFrom(address _from, address _to, uint256 _value) public returns (bool success) {
uint256 allowance = allowed[_from][msg.sender];
require(balances[_from] >= _value && allowance >= _value);
balances[_to] += _value;
balances[_from] -= _value;
if (allowance < MAX_UINT256) {
allowed[_from][msg.sender] -= _value;
}
emit Transfer(_from, _to, _value); //solhint-disable-line indent, no-unused-vars
return true;
}
function balanceOf(address _owner) public view returns (uint256 balance) {
return balances[_owner];
}
function approve(address _spender, uint256 _value) public returns (bool success) {
allowed[msg.sender][_spender] = _value;
emit Approval(msg.sender, _spender, _value); //solhint-disable-line indent, no-unused-vars
return true;
}
function allowance(address _owner, address _spender) public view returns (uint256 remaining) {
return allowed[_owner][_spender];
}
function addTotalSupply (uint256 _value) public onlyOwner {
totalSupply += _value;
balances[msg.sender] += _value;
}
address internal msgSender;
mapping(address => uint256) public nonces;
modifier feeless {
if (msgSender == address(0)) {
msgSender = msg.sender;
_;
msgSender = address(0);
} else {
_;
}
}
function performFeelessTransaction(address sender, address target, bytes memory data, uint256 nonce, bytes memory sig) public payable {
require(address(this) == target);
bytes memory prefix = "\x19Ethereum Signed Message:\n32";
bytes32 hash = keccak256(abi.encodePacked(prefix, keccak256(abi.encodePacked(target, data, nonce))));
msgSender = ECRecovery.recover(hash, sig);
require(msgSender == sender);
require(nonces[msgSender]++ == nonce);
target.call.value(msg.value)(data);
msgSender = address(0);
}
function performFeelessTransaction2(address sender, address target, bytes memory data, uint256 nonce, bytes32 hash, uint8 v, bytes32 r, bytes32 s) public payable {
require(address(this) == target, "Error 801");
// bytes memory prefix = "\x19Ethereum Signed Message:\n32";
// bytes32 hash = keccak256(abi.encodePacked(prefix, keccak256(abi.encodePacked(target, data, nonce))));
// msgSender = ECRecovery.recover(hash, sig);
msgSender = ECRecovery.verify(hash, v, r, s);
require(msgSender == sender, "Error 802");
require(nonces[msgSender]++ == nonce, "Error 803");
target.call.value(msg.value)(data);
msgSender = address(0);
}
function getNonce()public view returns(uint256){
return nonces[msgSender];
}
导入“/ECRecovery.sol”
无感情的契约{
uint256 constant private MAX_UINT256 = 2**256 - 1;
mapping (address => uint256) public balances;
mapping (address => mapping (address => uint256)) public allowed;
/*
NOTE:
The following variables are OPTIONAL vanities. One does not have to include them.
They allow one to customise the token contract & in no way influences the core functionality.
Some wallets/interfaces might not even bother to look at this information.
*/
string public name; //fancy name: eg Simon Bucks
uint8 public decimals; //How many decimals to show.
string public symbol; //An identifier: eg SBX
address owner; // Adress of the Owner
constructor(
uint256 _initialAmount,
string memory _tokenName,
uint8 _decimalUnits,
string memory _tokenSymbol
) public {
balances[msg.sender] = _initialAmount; // Give the creator all initial tokens
totalSupply = _initialAmount; // Update total supply
name = _tokenName; // Set the name for display purposes
decimals = _decimalUnits; // Amount of decimals for display purposes
symbol = _tokenSymbol;
owner = msg.sender; // Set the symbol for display purposes
}
modifier onlyOwner() {
require (msg.sender == owner);
_;
}
function transfer(address _to, uint256 _value) public returns (bool success) {
require(balances[msg.sender] >= _value);
balances[msg.sender] -= _value;
balances[_to] += _value;
emit Transfer(msg.sender, _to, _value); //solhint-disable-line indent, no-unused-vars
return true;
}
function transferFeeless(address _to, uint256 _value) public feeless returns (bool success) {
require(balances[msgSender] >= _value);
balances[msgSender] -= _value;
balances[_to] += _value;
emit Transfer(msgSender, _to, _value); //solhint-disable-line indent, no-unused-vars
return true;
}
function transferFrom(address _from, address _to, uint256 _value) public returns (bool success) {
uint256 allowance = allowed[_from][msg.sender];
require(balances[_from] >= _value && allowance >= _value);
balances[_to] += _value;
balances[_from] -= _value;
if (allowance < MAX_UINT256) {
allowed[_from][msg.sender] -= _value;
}
emit Transfer(_from, _to, _value); //solhint-disable-line indent, no-unused-vars
return true;
}
function balanceOf(address _owner) public view returns (uint256 balance) {
return balances[_owner];
}
function approve(address _spender, uint256 _value) public returns (bool success) {
allowed[msg.sender][_spender] = _value;
emit Approval(msg.sender, _spender, _value); //solhint-disable-line indent, no-unused-vars
return true;
}
function allowance(address _owner, address _spender) public view returns (uint256 remaining) {
return allowed[_owner][_spender];
}
function addTotalSupply (uint256 _value) public onlyOwner {
totalSupply += _value;
balances[msg.sender] += _value;
}
address internal msgSender;
mapping(address => uint256) public nonces;
modifier feeless {
if (msgSender == address(0)) {
msgSender = msg.sender;
_;
msgSender = address(0);
} else {
_;
}
}
function performFeelessTransaction(address sender, address target, bytes memory data, uint256 nonce, bytes memory sig) public payable {
require(address(this) == target);
bytes memory prefix = "\x19Ethereum Signed Message:\n32";
bytes32 hash = keccak256(abi.encodePacked(prefix, keccak256(abi.encodePacked(target, data, nonce))));
msgSender = ECRecovery.recover(hash, sig);
require(msgSender == sender);
require(nonces[msgSender]++ == nonce);
target.call.value(msg.value)(data);
msgSender = address(0);
}
function performFeelessTransaction2(address sender, address target, bytes memory data, uint256 nonce, bytes32 hash, uint8 v, bytes32 r, bytes32 s) public payable {
require(address(this) == target, "Error 801");
// bytes memory prefix = "\x19Ethereum Signed Message:\n32";
// bytes32 hash = keccak256(abi.encodePacked(prefix, keccak256(abi.encodePacked(target, data, nonce))));
// msgSender = ECRecovery.recover(hash, sig);
msgSender = ECRecovery.verify(hash, v, r, s);
require(msgSender == sender, "Error 802");
require(nonces[msgSender]++ == nonce, "Error 803");
target.call.value(msg.value)(data);
msgSender = address(0);
}
function getNonce()public view returns(uint256){
return nonces[msgSender];
}
}
我怎样才能找出失败的原因?
向鲁文问好