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41 lines
1.3 KiB
41 lines
1.3 KiB
pragma solidity ^0.4.18;
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import "./Ownable.sol";
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/**
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* @title Contracts that should not own Ether
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* @author Remco Bloemen <remco@2π.com>
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* @dev This tries to block incoming ether to prevent accidental loss of Ether. Should Ether end up
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* in the contract, it will allow the owner to reclaim this ether.
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* @notice Ether can still be send to this contract by:
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* calling functions labeled `payable`
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* `selfdestruct(contract_address)`
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* mining directly to the contract address
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*/
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contract HasNoEther is Ownable {
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/**
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* @dev Constructor that rejects incoming Ether
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* @dev The `payable` flag is added so we can access `msg.value` without compiler warning. If we
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* leave out payable, then Solidity will allow inheriting contracts to implement a payable
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* constructor. By doing it this way we prevent a payable constructor from working. Alternatively
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* we could use assembly to access msg.value.
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*/
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function HasNoEther() public payable {
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require(msg.value == 0);
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}
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/**
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* @dev Disallows direct send by settings a default function without the `payable` flag.
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*/
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function() external {
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}
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/**
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* @dev Transfer all Ether held by the contract to the owner.
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*/
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function reclaimEther() external onlyOwner {
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assert(owner.send(this.balance));
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}
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}
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