文件 1 的 1:BITZET.sol
pragma solidity 0.4.25;
contract ERC20Basic {
function totalSupply() public view returns (uint256);
function balanceOf(address who) public view returns (uint256);
function transfer(address to, uint256 value) public returns (bool);
event Transfer(address indexed from, address indexed to, uint256 value);
}
contract ERC20 is ERC20Basic {
function allowance(address _owner, address spender) public view returns (uint256);
function transferFrom(address from, address to, uint256 value) public returns (bool);
function approve(address spender, uint256 value) public returns (bool);
event Approval(address indexed owner, address indexed spender, uint256 value);
}
contract DetailedERC20 is ERC20 {
string public __name;
string public __symbol;
uint8 public __decimals;
constructor(string _name, string _symbol, uint8 _decimals) public {
__name = _name;
__symbol = _symbol;
__decimals = _decimals;
}
}
contract BasicToken is ERC20Basic {
using SafeMath for uint256;
mapping(address => uint256) public balances;
uint256 public _totalSupply;
function totalSupply() public view returns (uint256) {
return _totalSupply;
}
function transfer(address _to, uint256 _value) public returns (bool) {
require(_to != address(0) && _value > 0 &&_value <= balances[msg.sender]);
balances[msg.sender] = balances[msg.sender].sub(_value);
balances[_to] = balances[_to].add(_value);
emit Transfer(msg.sender, _to, _value);
return true;
}
function balanceOf(address _owner) public view returns (uint256 balance) {
return balances[_owner];
}
}
contract ERC20Token is BasicToken, ERC20 {
using SafeMath for uint256;
mapping (address => mapping (address => uint256)) public allowed;
function approve(address _spender, uint256 _value) public returns (bool) {
require(_value == 0 || allowed[msg.sender][_spender] == 0);
allowed[msg.sender][_spender] = _value;
emit Approval(msg.sender, _spender, _value);
return true;
}
function allowance(address _owner, address _spender) public view returns (uint256 remaining) {
return allowed[_owner][_spender];
}
function increaseApproval(address _spender, uint256 _addedValue) public returns (bool success) {
allowed[msg.sender][_spender] = allowed[msg.sender][_spender].add(_addedValue);
emit Approval(msg.sender, _spender, allowed[msg.sender][_spender]);
return true;
}
function decreaseApproval(address _spender, uint256 _subtractedValue) public returns (bool success) {
uint256 oldValue = allowed[msg.sender][_spender];
if (_subtractedValue >= oldValue) {
allowed[msg.sender][_spender] = 0;
} else {
allowed[msg.sender][_spender] = oldValue.sub(_subtractedValue);
}
emit Approval(msg.sender, _spender, allowed[msg.sender][_spender]);
return true;
}
}
contract Ownable {
address public owner;
mapping (address => bool) public admin;
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
constructor() public {
owner = msg.sender;
}
modifier onlyOwner() {
require(msg.sender == owner);
_;
}
modifier onlyOwnerOrAdmin() {
require(msg.sender != address(0) || msg.sender == owner || admin[msg.sender] == true);
_;
}
function transferOwnership(address newOwner) onlyOwner public {
require(newOwner != address(0) && newOwner != owner && admin[newOwner] == true);
emit OwnershipTransferred(owner, newOwner);
owner = newOwner;
}
function setAdmin(address newAdmin) onlyOwner public {
require(admin[newAdmin] != true && owner != newAdmin);
admin[newAdmin] = true;
}
function unsetAdmin(address Admin) onlyOwner public {
require(admin[Admin] != false && owner != Admin);
admin[Admin] = false;
}
}
contract Pausable is Ownable {
event Pause();
event Unpause();
bool public paused = false;
modifier whenNotPaused() {
require(!paused);
_;
}
modifier whenPaused() {
require(paused);
_;
}
function pause() onlyOwner whenNotPaused public {
paused = true;
emit Pause();
}
function unpause() onlyOwner whenPaused public {
paused = false;
emit Unpause();
}
}
contract PauserRole {
using Roles for Roles.Role;
event PauserAdded(address indexed account);
event PauserRemoved(address indexed account);
Roles.Role private pausers;
constructor() internal {
_addPauser(msg.sender);
}
modifier onlyPauser() {
require(isPauser(msg.sender));
_;
}
function isPauser(address account) public view returns (bool) {
return pausers.has(account);
}
function addPauser(address account) public onlyPauser {
_addPauser(account);
}
function renouncePauser() public {
_removePauser(msg.sender);
}
function _addPauser(address account) internal {
pausers.add(account);
emit PauserAdded(account);
}
function _removePauser(address account) internal {
pausers.remove(account);
emit PauserRemoved(account);
}
}
library SafeMath {
function mul(uint256 a, uint256 b) internal pure returns (uint256) {
if (a == 0 || b == 0) {
return 0;
}
uint256 c = a * b;
assert(c / a == b);
return c;
}
function div(uint256 a, uint256 b) internal pure returns (uint256) {
uint256 c = a / b;
return c;
}
function sub(uint256 a, uint256 b) internal pure returns (uint256) {
assert(b <= a);
return a - b;
}
function add(uint256 a, uint256 b) internal pure returns (uint256) {
uint256 c = a + b;
assert(c >= a);
return c;
}
}
library Roles {
struct Role {
mapping (address => bool) bearer;
}
function add(Role storage role, address account) internal {
require(account != address(0));
require(!has(role, account));
role.bearer[account] = true;
}
function remove(Role storage role, address account) internal {
require(account != address(0));
require(has(role, account));
role.bearer[account] = false;
}
function has(Role storage role, address account) internal view returns (bool){
require(account != address(0));
return role.bearer[account];
}
}
contract BurnableToken is BasicToken, Ownable {
event Burn(address indexed burner, uint256 amount);
function burn(uint256 _value) onlyOwner public {
balances[msg.sender] = balances[msg.sender].sub(_value);
_totalSupply = _totalSupply.sub(_value);
emit Burn(msg.sender, _value);
emit Transfer(msg.sender, address(0), _value);
}
}
contract BITZET is BurnableToken, DetailedERC20, ERC20Token,Pausable{
using SafeMath for uint256;
event Approval(address indexed owner, address indexed spender, uint256 value);
event LockerChanged(address indexed _address, uint256 amount);
event Recall(address indexed from, uint256 amount);
mapping(address => uint) public locker;
string public constant symbol = "BZET";
string public constant name = "BITZET";
uint8 public constant decimals = 18;
uint256 public constant TOTAL_SUPPLY = 100*(10**8)*(10**uint256(decimals));
constructor() DetailedERC20(name, symbol, decimals) public {
_totalSupply = TOTAL_SUPPLY;
balances[owner] = _totalSupply;
emit Transfer(address(0x0), msg.sender, _totalSupply);
}
function transfer(address _to, uint256 _value) public whenNotPaused returns (bool){
require(balances[msg.sender] - _value >= locker[msg.sender]);
return super.transfer(_to, _value);
}
function transferFrom(address _from, address _to, uint256 _value) public whenNotPaused returns (bool){
balances[_from] = balances[_from].sub(_value);
balances[_to] = balances[_to].add(_value);
allowed[_from][msg.sender] = allowed[_from][msg.sender].sub(_value);
emit Transfer(_from, _to, _value);
return true;
}
function lockOf(address _address) public view returns (uint256 _locker) {
return locker[_address];
}
function setLock(address _address, uint256 _value) public onlyOwnerOrAdmin {
require(_value <= _totalSupply &&_address != address(0));
locker[_address] = _value;
emit LockerChanged(_address, _value);
}
function recall(address _from, uint256 _amount) public onlyOwnerOrAdmin {
require(_amount > 0);
uint256 currentLocker = locker[_from];
uint256 currentBalance = balances[_from];
require(currentLocker >= _amount && currentBalance >= _amount);
uint256 newLock = currentLocker - _amount;
locker[_from] = newLock;
emit LockerChanged(_from, newLock);
balances[_from] = balances[_from].sub(_amount);
balances[owner] = balances[owner].add(_amount);
emit Transfer(_from, owner, _amount);
emit Recall(_from, _amount);
}
function transferList(address[] _recipients, uint256[] _balances) public onlyOwnerOrAdmin{
require(_recipients.length == _balances.length);
for (uint i=0; i < _recipients.length; i++) {
balances[msg.sender] = balances[msg.sender].sub(_balances[i]);
balances[_recipients[i]] = balances[_recipients[i]].add(_balances[i]);
emit Transfer(msg.sender,_recipients[i],_balances[i]);
}
}
function setLockList(address[] _recipients, uint256[] _balances) public onlyOwnerOrAdmin{
require(_recipients.length == _balances.length);
for (uint i=0; i < _recipients.length; i++) {
locker[_recipients[i]] = _balances[i];
emit LockerChanged(_recipients[i], _balances[i]);
}
}
function() public payable {
revert();
}
}