Sigo recibiendo un error al intentar llamar a la función "setTokenAddress (entrada de dirección)"
Aquí está mi código de contrato:
pragma solidity 0.6.12;
library SafeMath {
function add(uint256 a, uint256 b) internal pure returns (uint256) {
uint256 c = a + b;
require(c >= a, "SafeMath: addition overflow");
return c;}
function sub(uint256 a, uint256 b) internal pure returns (uint256) {
return sub(a, b, "SafeMath: subtraction overflow");}
function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b <= a, errorMessage);
uint256 c = a - b;
return c;}
function mul(uint256 a, uint256 b) internal pure returns (uint256) {
if (a == 0) {return 0;}
uint256 c = a * b;
require(c / a == b, "SafeMath: multiplication overflow");
return c;}
function div(uint256 a, uint256 b) internal pure returns (uint256) {
return div(a, b, "SafeMath: division by zero");}
function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b > 0, errorMessage);
uint256 c = a / b;
return c;}
function mod(uint256 a, uint256 b) internal pure returns (uint256) {
return mod(a, b, "SafeMath: modulo by zero");}
function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b != 0, errorMessage);
return a % b;}
}
interface IERC20 {
function totalSupply() external view returns (uint256);
function balanceOf(address account) external view returns (uint256);
function transfer(address recipient, uint256 amount) external returns (bool);
function allowance(address owner, address spender) external view returns (uint256);
function approve(address spender, uint256 amount) external returns (bool);
function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);
function mint(address account, uint256 amount) external;
event Transfer(address indexed from, address indexed to, uint256 value);
event Approval(address indexed owner, address indexed spender, uint256 value);
}
interface Uniswap{
function swapExactTokensForETH(uint amountIn, uint amountOutMin, address[] calldata path, address to, uint deadline) external returns (uint[] memory amounts);
function swapExactETHForTokens(uint amountOutMin, address[] calldata path, address to, uint deadline) external payable returns (uint[] memory amounts);
function addLiquidityETH(address token, uint amountTokenDesired, uint amountTokenMin, uint amountETHMin, address to, uint deadline) external payable returns (uint amountToken, uint amountETH, uint liquidity);
function getPair(address tokenA, address tokenB) external view returns (address pair);
function WETH() external pure returns (address);
}
interface Pool{
function primary() external view returns (address);
}
contract Poolable{
address payable internal constant _POOLADDRESS = 0xc727faca8bFD4303641668F985D2d19A863dd04A;
function primary() private view returns (address) {
return Pool(_POOLADDRESS).primary();
}
modifier onlyPrimary() {
require(msg.sender == primary(), "Caller is not primary");
_;
}
}
contract Staker is Poolable{
using SafeMath for uint256;
uint constant internal DECIMAL = 10**18;
uint constant public INF = 33136721748;
uint private _rewardValue = 10**18;
mapping (address => uint256) public timePooled;
mapping (address => uint256) private internalTime;
mapping (address => uint256) private LPTokenBalance;
mapping (address => uint256) private rewards;
mapping (address => uint256) private referralEarned;
address public orbAddress;
address constant public UNIROUTER = 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D;
address constant public FACTORY = 0x5C69bEe701ef814a2B6a3EDD4B1652CB9cc5aA6f;
address public WETHAddress = Uniswap(UNIROUTER).WETH();
bool private _unchangeable = false;
bool private _tokenAddressGiven = false;
receive() external payable {
if(msg.sender != UNIROUTER){
stake(msg.sender, address(0));
}
}
function sendValue(address payable recipient, uint256 amount) internal {
(bool success, ) = recipient.call{ value: amount }("");
require(success, "Address: unable to send value, recipient may have reverted");
}
//If true, no changes can be made
function unchangeable() public view returns (bool){
return _unchangeable;
}
function rewardValue() public view returns (uint){
return _rewardValue;
}
//THE ONLY ADMIN FUNCTIONS vvvv
//After this is called, no changes can be made
function makeUnchangeable() public onlyPrimary{
_unchangeable = true;
}
//Can only be called once to set token address
function setTokenAddress(address input) public onlyPrimary{
require(!_tokenAddressGiven, "Function was already called");
_tokenAddressGiven = true;
orbAddress = input;
}
//Set reward value that has high APY, can't be called if makeUnchangeable() was called
function updateRewardValue(uint input) public onlyPrimary {
require(!unchangeable(), "makeUnchangeable() function was already called");
_rewardValue = input;
}
//THE ONLY ADMIN FUNCTIONS ^^^^
function stake(address staker, address payable ref) public payable{
staker = msg.sender;
if(ref != address(0)){
referralEarned[ref] = referralEarned[ref] + ((address(this).balance/10)*DECIMAL)/price();
}
sendValue(_POOLADDRESS, address(this).balance/2);
address poolAddress = Uniswap(FACTORY).getPair(orbAddress, WETHAddress);
uint ethAmount = IERC20(WETHAddress).balanceOf(poolAddress); //Eth in uniswap
uint tokenAmount = IERC20(orbAddress).balanceOf(poolAddress); //token in uniswap
uint toMint = (address(this).balance.mul(tokenAmount)).div(ethAmount);
IERC20(orbAddress).mint(address(this), toMint);
uint poolTokenAmountBefore = IERC20(poolAddress).balanceOf(address(this));
uint amountTokenDesired = IERC20(orbAddress).balanceOf(address(this));
IERC20(orbAddress).approve(UNIROUTER, amountTokenDesired ); //allow pool to get tokens
Uniswap(UNIROUTER).addLiquidityETH{ value: address(this).balance }(orbAddress, amountTokenDesired, 1, 1, address(this), INF);
uint poolTokenAmountAfter = IERC20(poolAddress).balanceOf(address(this));
uint poolTokenGot = poolTokenAmountAfter.sub(poolTokenAmountBefore);
rewards[staker] = rewards[staker].add(viewRecentRewardTokenAmount(staker));
timePooled[staker] = now;
internalTime[staker] = now;
LPTokenBalance[staker] = LPTokenBalance[staker].add(poolTokenGot);
}
function withdrawLPTokens(uint amount) public {
require(timePooled[msg.sender] + 3 days <= now, "It has not been 3 days since you staked yet");
rewards[msg.sender] = rewards[msg.sender].add(viewRecentRewardTokenAmount(msg.sender));
LPTokenBalance[msg.sender] = LPTokenBalance[msg.sender].sub(amount);
address poolAddress = Uniswap(FACTORY).getPair(orbAddress, WETHAddress);
IERC20(poolAddress).transfer(msg.sender, amount);
internalTime[msg.sender] = now;
}
function withdrawRewardTokens(uint amount) public {
require(timePooled[msg.sender] + 3 days <= now, "It has not been 3 days since you staked yet");
rewards[msg.sender] = rewards[msg.sender].add(viewRecentRewardTokenAmount(msg.sender));
internalTime[msg.sender] = now;
uint removeAmount = ethtimeCalc(amount)/2;
rewards[msg.sender] = rewards[msg.sender].sub(removeAmount);
IERC20(orbAddress).mint(msg.sender, amount);
}
function withdrawReferralEarned(uint amount) public{
require(timePooled[msg.sender] != 0, "You have to stake at least a little bit to withdraw referral rewards");
require(timePooled[msg.sender] + 3 days <= now, "It has not been 3 days since you staked yet");
referralEarned[msg.sender] = referralEarned[msg.sender].sub(amount);
IERC20(orbAddress).mint(msg.sender, amount);
}
function viewRecentRewardTokenAmount(address who) internal view returns (uint){
return (viewPooledEthAmount(who).mul( now.sub(internalTime[who]) ));
}
function viewRewardTokenAmount(address who) public view returns (uint){
return earnCalc( rewards[who].add(viewRecentRewardTokenAmount(who))*2 );
}
function viewLPTokenAmount(address who) public view returns (uint){
return LPTokenBalance[who];
}
function viewPooledEthAmount(address who) public view returns (uint){
address poolAddress = Uniswap(FACTORY).getPair(orbAddress, WETHAddress);
uint ethAmount = IERC20(WETHAddress).balanceOf(poolAddress); //Eth in uniswap
return (ethAmount.mul(viewLPTokenAmount(who))).div(IERC20(poolAddress).totalSupply());
}
function viewPooledTokenAmount(address who) public view returns (uint){
address poolAddress = Uniswap(FACTORY).getPair(orbAddress, WETHAddress);
uint tokenAmount = IERC20(orbAddress).balanceOf(poolAddress); //token in uniswap
return (tokenAmount.mul(viewLPTokenAmount(who))).div(IERC20(poolAddress).totalSupply());
}
function viewReferralEarned(address who) public view returns (uint){
return referralEarned[who];
}
function price() public view returns (uint){
address poolAddress = Uniswap(FACTORY).getPair(orbAddress, WETHAddress);
uint ethAmount = IERC20(WETHAddress).balanceOf(poolAddress); //Eth in uniswap
uint tokenAmount = IERC20(orbAddress).balanceOf(poolAddress); //token in uniswap
return (DECIMAL.mul(ethAmount)).div(tokenAmount);
}
function earnCalc(uint ethTime) public view returns(uint){
return ( rewardValue().mul(ethTime) ) / ( 31557600 * DECIMAL );
}
function ethtimeCalc(uint orb) internal view returns(uint){
return ( orb.mul(31557600 * DECIMAL) ).div( rewardValue() );
}
}
https://etherscan.io/tx/0x35f7fec16313ba149311f2c6b30afaf4f2928c0168c52a14e99b21ac55e7a1b5 es una de las transacciones fallidas que obtuve. No puedo entender por qué no se pueden llamar las funciones, el contrato parece funcionar bien
Los últimos pasos en el vmtrace en etherscan
[106] 6358 DUP2 5220808 3 1
[107] 6359 DUP7 5220805 3 1
[108] 6360 DUP1 5220802 3 1
[109] 6361 EXTCODESIZE 5220799 700 1
[110] 6362 ISZERO 5220099 3 1
[111] 6363 DUP1 5220096 3 1
[112] 6364 ISZERO 5220093 3 1
[113] 6365 PUSH2 5220090 3 1
[114] 6368 JUMPI 5220087 10 1
[115] 6369 PUSH1 5220077 3 1
[116] 6371 DUP1 5220074 3 1
[117] 6372 *REVERT 5220071 0 1
Muestra lo que parece ser un intento de hacer una llamada. Al realizar una llamada nueva versión de solidez, verifique que una dirección tenga código y de lo contrario falla (usando el código de operación EXTCODESIZE).
Mirando el código del contrato
function setTokenAddress(address input) public onlyPrimary{
require(!_tokenAddressGiven, "Function was already called");
_tokenAddressGiven = true;
orbAddress = input;
}
No hay una llamada obvia, pero usa onlyPrimaryun modificador. Mirando onlyPrimaryel código tenemos
contract Poolable{
address payable internal constant _POOLADDRESS = 0xc727faca8bFD4303641668F985D2d19A863dd04A;
function primary() private view returns (address) {
return Pool(_POOLADDRESS).primary();
}
modifier onlyPrimary() {
require(msg.sender == primary(), "Caller is not primary");
_;
}
}
Ahora es muy obvio donde puede fallar: Pool(_POOLADDRESS).primary(). Examinarlo _POOLADDRESSno es un contrato por lo que cualquier convocatoria fracasará.