42 lines
1.3 KiB
Solidity
42 lines
1.3 KiB
Solidity
pragma solidity ^0.4.11;
|
|
|
|
|
|
/// @dev `Owned` is a base level contract that assigns an `owner` that can be
|
|
/// later changed
|
|
contract Owned {
|
|
|
|
/// @dev `owner` is the only address that can call a function with this
|
|
/// modifier
|
|
modifier onlyOwner() {
|
|
require(msg.sender == owner);
|
|
_;
|
|
}
|
|
|
|
address public owner;
|
|
|
|
/// @notice The Constructor assigns the account deploying the contract to be
|
|
/// the `owner`
|
|
function Owned() {
|
|
owner = msg.sender;
|
|
}
|
|
|
|
address public newOwner;
|
|
|
|
/// @notice `owner` can step down and assign some other address to this role
|
|
/// but after this function is called the current owner still has ownership
|
|
/// powers in this contract; change of ownership is a 2 step process
|
|
/// @param _newOwner The address of the new owner. A simple contract with
|
|
/// the ability to accept ownership but the inability to do anything else
|
|
/// can be used to create an unowned contract to achieve decentralization
|
|
function changeOwner(address _newOwner) onlyOwner {
|
|
newOwner = _newOwner;
|
|
}
|
|
|
|
/// @notice `newOwner` can accept ownership over this contract
|
|
function acceptOwnership() {
|
|
require(msg.sender == newOwner) {
|
|
owner = newOwner;
|
|
}
|
|
}
|
|
}
|