You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
48 lines
1.3 KiB
48 lines
1.3 KiB
pragma solidity ^0.4.8;
|
|
|
|
import "./Ownable.sol";
|
|
|
|
/** @title Contracts that should not own Ether
|
|
* @author Remco Bloemen <remco@2π.com>
|
|
|
|
* @dev This tries to block incoming ether to prevent accidental loss of Ether.
|
|
Should Ether end up in the contrat, it will allow the owner to reclaim
|
|
this ether.
|
|
* @notice Ether can still be send to this contract by:
|
|
* calling functions labeled `payable`
|
|
* `selfdestruct(contract_address)`
|
|
* mining directly to the contract address
|
|
*/
|
|
contract HasNoEther is Ownable {
|
|
|
|
/**
|
|
* @dev Constructor that rejects incoming Ether
|
|
* @dev The flag `payable` is added so we can access `msg.value`
|
|
without compiler warning. If we leave out payable, then
|
|
Solidity will allow inheriting contracts to implement a
|
|
payable constructor. By doing it this way we prevent a
|
|
payable constructor from working. Alternatively we could
|
|
use assembly to access msg.value.
|
|
*/
|
|
function HasNoEther() payable {
|
|
if(msg.value > 0) {
|
|
throw;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @dev Disallow direct send by settings a default function without `payable`
|
|
*/
|
|
function() external {
|
|
}
|
|
|
|
/**
|
|
* @dev Transfer all Ether owned by the contract to the owner
|
|
* @dev What if owner is itself a contract marked HasNoEther?
|
|
*/
|
|
function reclaimEther() external onlyOwner {
|
|
if(!owner.send(this.balance)) {
|
|
throw;
|
|
}
|
|
}
|
|
}
|
|
|