ContractProxy

contract ContractProxy {
    address public owner;
    address public destination;
    
    modifier onlyOwner(){ if (msg.sender == owner) _; }
    
    function ProxyDapp(){ owner = msg.sender; }
    
    //main function called by all users
    function forward(bytes data) {
        if (!destination.delegatecall(data)) { throw; }
    }
    
    //upgrade by deploying a new contract and simply updating this address
    function upgradeDestinationAddress(address _destination) onlyOwner {
        destination = _destination;
    }
    
    //pass 0x0 to reliquish superhuman ownership powers
    function transferOwner(address _owner) onlyOwner { owner = _owner; }
}