39 lines
978 B
Solidity
39 lines
978 B
Solidity
/**
|
|
* @title Ownable
|
|
* @dev The Ownable contract has an owner address, and provides basic authorization control
|
|
* functions, this simplifies the implementation of "user permissions".
|
|
*/
|
|
contract Ownable {
|
|
address public owner;
|
|
|
|
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
|
|
|
|
/**
|
|
* @dev The Ownable constructor sets the original `owner` of the contract to the sender
|
|
* account.
|
|
*/
|
|
function Ownable() public {
|
|
owner = msg.sender;
|
|
}
|
|
|
|
|
|
/**
|
|
* @dev Throws if called by any account other than the owner.
|
|
*/
|
|
modifier onlyOwner() {
|
|
require(msg.sender == owner);
|
|
_;
|
|
}
|
|
|
|
|
|
/**
|
|
* @dev Allows the current owner to transfer control of the contract to a newOwner.
|
|
* @param newOwner The address to transfer ownership to.
|
|
*/
|
|
function transferOwnership(address newOwner) public onlyOwner {
|
|
require(newOwner != address(0));
|
|
OwnershipTransferred(owner, newOwner);
|
|
owner = newOwner;
|
|
}
|
|
|
|
}
|