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+pragma solidity ^0.4.11;
+
+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 contract, 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 `payable` flag 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 Disallows direct send by settings a default function without the `payable` flag.
+ */
+ function() external {
+ }
+
+ /**
+ * @dev Transfer all Ether held by the contract to the owner.
+ */
+ function reclaimEther() external onlyOwner {
+ if(!owner.send(this.balance)) {
+ throw;
+ }
+ }
+}