Created
December 3, 2020 17:20
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pragma solidity ^0.7.0; | |
contract superSpreader { | |
event sendEther(address indexed receiver, uint256 amount); | |
event deposit(address indexed sender, uint256 amount); | |
mapping(address => bool) private _transferDone; | |
constructor() payable { | |
_transferDone[address(0)] = true; | |
} | |
function getEther(address payable receiver) external { | |
require(_transferDone[receiver] == false, "no double send"); | |
if(address(this).balance >= 1 ether) { | |
_transferDone[receiver] = true; | |
receiver.transfer(1 ether); | |
emit sendEther(receiver, 1 ether); | |
} else { | |
revert("Faucet without ether"); | |
} | |
} | |
fallback() external payable { | |
revert("send some ether"); | |
} | |
receive() external payable { | |
emit deposit(msg.sender, msg.value); | |
} | |
} |
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https://goerli.etherscan.io/address/0x2ae16644fc50bf30034dbc1ce280220705355a9a