水龙头合约只允许所有者执行交易

Question

一切都很好，工作得很好，但是为什么当我需要调用 function requestTokens 时，只有 owner 可以成功交易而其他地址不能使用 function 因为合约导致执行恢复？

地址：0x8c08a469BDFd679CEF0729bDEa52BC688d4bDbBC

/\*\*
\*Submitted for verification at BscScan.com on 2023-01-30
\*/

/\*\*
// contracts/Faucet.sol
// SPDX-License-Identifier: MIT
\*/

pragma solidity ^0.8.17;
interface IERC20 {
function transfer(address to, uint256 value) external returns (bool);
event Transfer(address indexed from, address indexed to, uint256 value);
}

contract Faucet {
uint256 constant public waitTime = 1440 minutes;
bool public isFaucetActive = true;
address public owner;
IERC20 public tokenInstance;
mapping(address =\> uint256) public lastAccessTime;

constructor(address \_tokenInstance) {
require(\_tokenInstance != address(0));
tokenInstance = IERC20(\_tokenInstance);
owner = msg.sender;
}

function requestTokens(uint8 \_slice) public {
require(allowedToWithdraw(msg.sender));
require(isFaucetActive);
uint256 tokenAmount;
if(\_slice == 1) {
tokenAmount = 5 \* 10**12;
} else if(\_slice == 2) {
tokenAmount = 11 \* 10**12;
} else if(\_slice == 3) {
tokenAmount = 8 \* 10**12;
} else if(\_slice == 4) {
tokenAmount = 4 \* 10**12;
} else if(\_slice == 5) {
tokenAmount = 3 \* 10**12;
} else if(\_slice == 6) {
tokenAmount = 14 \* 10**12;
} else if(\_slice == 7) {
tokenAmount = 10 \* 10**12;
} else if(\_slice == 8) {
tokenAmount = 12 \* 10**12;
}
tokenInstance.transfer(msg.sender, tokenAmount);
lastAccessTime\[msg.sender\] = block.timestamp + waitTime;
}

function allowedToWithdraw(address \_address) public view returns (bool) {
if(lastAccessTime\[\_address\] == 0) {
return true;
} else if(block.timestamp \>= lastAccessTime\[\_address\]) {
return true;
}
return false;
}
function stopFaucet() public {
require(msg.sender == owner);
isFaucetActive = false;
}

    function activateFaucet() public {
        require(msg.sender == owner);
        isFaucetActive = true;
    }

}

我尽我所能，就像 7/8 不同的合同用不同的方法

Answer 1

要转移令牌（0xbf433345a79CF6e9270350848F88Db16d46D4f54），它应该被打开。 或者你的水龙头（0x8c08a469BDFd679CEF0729bDEa52BC688d4bDbBC）或调用者应该在令牌上列入白名单。 由于另一个地址（在您失败的交易中，0x87f9F0572693258678625d29F5bbAEb02E04C14B）未在令牌上列入白名单，因此交易已在修改器中恢复。

modifier open(address from, address to) {
    require(isOpen || _whiteList[from] || _whiteList[to], "Not Open");
    _;
}