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