文件 1 的 1:MOAP.sol
pragma solidity 0.6.12;
abstract contract Context {
function _msgSender() internal view virtual returns (address payable) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes memory) {
this;
return msg.data;
}
}
contract Ownable is Context {
address private _owner;
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
constructor () internal {
address msgSender = _msgSender();
_owner = msgSender;
emit OwnershipTransferred(address(0), msgSender);
}
function owner() public view returns (address) {
return _owner;
}
modifier onlyOwner() {
require(_owner == _msgSender(), "Ownable: caller is not the owner");
_;
}
function renounceOwnership() public virtual onlyOwner {
emit OwnershipTransferred(_owner, address(0));
_owner = address(0);
}
function transferOwnership(address newOwner) public virtual onlyOwner {
require(newOwner != address(0), "Ownable: new owner is the zero address");
emit OwnershipTransferred(_owner, newOwner);
_owner = newOwner;
}
}
interface IERC20 {
function totalSupply() external view returns (uint256);
function balanceOf(address account) external view returns (uint256);
function transfer(address recipient, uint256 amount) external returns (bool);
function allowance(address owner, address spender) external view returns (uint256);
function approve(address spender, uint256 amount) external returns (bool);
function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);
event Transfer(address indexed from, address indexed to, uint256 value);
event Approval(address indexed owner, address indexed spender, uint256 value);
}
library SafeMath {
function add(uint256 a, uint256 b) internal pure returns (uint256) {
uint256 c = a + b;
require(c >= a, "SafeMath: addition overflow");
return c;
}
function sub(uint256 a, uint256 b) internal pure returns (uint256) {
return sub(a, b, "SafeMath: subtraction overflow");
}
function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b <= a, errorMessage);
uint256 c = a - b;
return c;
}
function mul(uint256 a, uint256 b) internal pure returns (uint256) {
if (a == 0) {
return 0;
}
uint256 c = a * b;
require(c / a == b, "SafeMath: multiplication overflow");
return c;
}
function div(uint256 a, uint256 b) internal pure returns (uint256) {
return div(a, b, "SafeMath: division by zero");
}
function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b > 0, errorMessage);
uint256 c = a / b;
return c;
}
function mod(uint256 a, uint256 b) internal pure returns (uint256) {
return mod(a, b, "SafeMath: modulo by zero");
}
function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b != 0, errorMessage);
return a % b;
}
}
library Address {
function isContract(address account) internal view returns (bool) {
bytes32 codehash;
bytes32 accountHash = 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470;
assembly { codehash := extcodehash(account) }
return (codehash != accountHash && codehash != 0x0);
}
function sendValue(address payable recipient, uint256 amount) internal {
require(address(this).balance >= amount, "Address: insufficient balance");
(bool success, ) = recipient.call{ value: amount }("");
require(success, "Address: unable to send value, recipient may have reverted");
}
}
contract ERC20 is Context, IERC20 {
using SafeMath for uint256;
using Address for address;
mapping (address => uint256) private _balances;
mapping (address => mapping (address => uint256)) internal _allowances;
uint256 private _totalSupply;
string private _name;
string private _symbol;
uint8 private _decimals;
constructor (string memory name, string memory symbol) public {
_name = name;
_symbol = symbol;
_decimals = 18;
}
function name() public view returns (string memory) {
return _name;
}
function symbol() public view returns (string memory) {
return _symbol;
}
function decimals() public view returns (uint8) {
return _decimals;
}
function totalSupply() public view virtual override returns (uint256) {
return _totalSupply;
}
function balanceOf(address account) public view virtual override returns (uint256) {
return _balances[account];
}
function transfer(address recipient, uint256 amount) public virtual override returns (bool) {
_transfer(_msgSender(), recipient, amount);
return true;
}
function allowance(address owner, address spender) public view virtual override returns (uint256) {
return _allowances[owner][spender];
}
function approve(address spender, uint256 amount) public virtual override returns (bool) {
_approve(_msgSender(), spender, amount);
return true;
}
function transferFrom(address sender, address recipient, uint256 amount) public virtual override returns (bool) {
_transfer(sender, recipient, amount);
_approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance"));
return true;
}
function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(addedValue));
return true;
}
function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, "ERC20: decreased allowance below zero"));
return true;
}
function _transfer(address sender, address recipient, uint256 amount) internal virtual {
require(sender != address(0), "ERC20: transfer from the zero address");
require(recipient != address(0), "ERC20: transfer to the zero address");
_beforeTokenTransfer(sender, recipient, amount);
_balances[sender] = _balances[sender].sub(amount, "ERC20: transfer amount exceeds balance");
_balances[recipient] = _balances[recipient].add(amount);
emit Transfer(sender, recipient, amount);
}
function _mint(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: mint to the zero address");
_beforeTokenTransfer(address(0), account, amount);
_totalSupply = _totalSupply.add(amount);
_balances[account] = _balances[account].add(amount);
emit Transfer(address(0), account, amount);
}
function _burn(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: burn from the zero address");
_beforeTokenTransfer(account, address(0), amount);
_balances[account] = _balances[account].sub(amount, "ERC20: burn amount exceeds balance");
_totalSupply = _totalSupply.sub(amount);
emit Transfer(account, address(0), amount);
}
function _approve(address owner, address spender, uint256 amount) internal virtual {
require(owner != address(0), "ERC20: approve from the zero address");
require(spender != address(0), "ERC20: approve to the zero address");
_allowances[owner][spender] = amount;
emit Approval(owner, spender, amount);
}
function _setupDecimals(uint8 decimals_) internal {
_decimals = decimals_;
}
function _beforeTokenTransfer(address from, address to, uint256 amount) internal virtual { }
}
interface IUniswapSync {
function sync() external;
}
contract MOAP is ERC20, Ownable {
using SafeMath for uint256;
event LogRebase(uint256 indexed _epoch, uint256 totalSupply);
event LogUserBanStatusUpdated(address user, bool banned);
modifier validRecipient(address to) {
require(to != address(0x0));
require(to != address(this));
_;
}
uint256 private constant DECIMALS = 18;
uint256 private constant MAX_UINT256 = ~uint256(0);
uint256 private constant INITIAL_SUPPLY = 38000 * 10**DECIMALS;
uint256 private constant INITIAL_SHARES = (MAX_UINT256) - (MAX_UINT256 % INITIAL_SUPPLY);
uint256 private _totalShares;
uint256 private _totalSupply;
address public _moapUniswapLPContract;
uint256 private _epoch;
uint256 public _MoapRebasePercent = 15;
uint256 public _transferFee = 5;
uint256 private _moapFeeTotal;
mapping(address => uint256) private _shareBalances;
mapping (address => uint256) private _moapBalances;
mapping (address => mapping (address => uint256)) private _allowedMOAP;
uint256 public antiJeet;
bool public muteTransfers;
bool public PauseRebases;
mapping(address => bool) public transferPauseExemptList;
mapping (address => bool) private _isExcluded;
address[] private _excluded;
constructor() public ERC20("MOAP", "MOAP") {
_totalShares = INITIAL_SHARES;
_totalSupply = INITIAL_SUPPLY;
_shareBalances[owner()] = _totalShares;
emit Transfer(address(0x0), owner(), _totalSupply);
}
function setJeetTimer()
public
onlyOwner
{
antiJeet = now;
}
function MuteTransfers(bool _muteTransfers)
public
onlyOwner
{
muteTransfers = _muteTransfers;
}
function setTransferPauseExempt(address user, bool exempt)
public
onlyOwner
{
if (exempt) {
transferPauseExemptList[user] = true;
} else {
delete transferPauseExemptList[user];
}
}
function SetPauseRebases(bool _pauseRebases)
public
onlyOwner
{
PauseRebases = _pauseRebases;
}
function MoapRebasePercent (uint256 _moaprebasepercent)
public
onlyOwner
{
_MoapRebasePercent = _moaprebasepercent;
}
function setTransferFee(uint256 _newTransferFee)
public
onlyOwner
{
_transferFee = _newTransferFee;
}
function setLPContract(address _setlpcontract)
public
onlyOwner
{
_setlpcontract = _setlpcontract;
}
function rebase()
public
onlyOwner
returns (uint256)
{
require(!PauseRebases, "Rebases are paused");
_totalSupply = _totalSupply.add(_totalSupply.mul(_MoapRebasePercent).div(100));
for (uint256 i = 0; i < _excluded.length; i++) {
if (_moapBalances[_excluded[i]] > 0) {
_moapBalances[_excluded[i]] = _moapBalances[_excluded[i]].sub(_moapBalances[_excluded[i]].mul(_MoapRebasePercent).div(100));
}
}
_epoch = _epoch.add(1);
emit LogRebase(_epoch, _totalSupply);
IUniswapSync(_moapUniswapLPContract).sync();
return _totalSupply;
}
function getTotalShares()
public
view
returns (uint256)
{
return _totalShares;
}
function sharesOf(address user)
public
view
returns (uint256)
{
return _shareBalances[user];
}
function totalSupply()
public
override
view
returns (uint256)
{
return _totalSupply;
}
function transfer(address recipient, uint256 amount)
public
override(ERC20)
validRecipient(recipient)
returns (bool)
{
require(!muteTransfers || transferPauseExemptList[msg.sender], "muted");
require(now.sub(antiJeet) >= 300 || amount <= 49 * 10**DECIMALS);
_transfer(_msgSender(), recipient, amount);
return true;
}
function allowance(address owner_, address spender)
public
override
view
returns (uint256)
{
return _allowedMOAP[owner_][spender];
}
function approve(address spender, uint256 value)
public
override
returns (bool)
{
require(!muteTransfers || transferPauseExemptList[msg.sender], "muted");
_allowedMOAP[msg.sender][spender] = value;
emit Approval(msg.sender, spender, value);
return true;
}
function transferFrom(address sender, address recipient, uint256 amount)
public
override
validRecipient(recipient)
returns (bool)
{
require(!muteTransfers || transferPauseExemptList[msg.sender], "muted");
_transfer(sender, recipient, amount);
approve(sender, _allowedMOAP[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance"));
return true;
}
function increaseAllowance(address spender, uint256 addedValue)
public
override
returns (bool)
{
require(!muteTransfers || transferPauseExemptList[msg.sender], "muted");
_allowedMOAP[msg.sender][spender] = _allowedMOAP[msg.sender][spender].add(addedValue);
emit Approval(msg.sender, spender, _allowedMOAP[msg.sender][spender]);
return true;
}
function decreaseAllowance(address spender, uint256 subtractedValue)
public
override
returns (bool)
{
require(!muteTransfers || transferPauseExemptList[msg.sender], "muted");
uint256 oldValue = _allowedMOAP[msg.sender][spender];
if (subtractedValue >= oldValue) {
_allowedMOAP[msg.sender][spender] = 0;
} else {
_allowedMOAP[msg.sender][spender] = oldValue.sub(subtractedValue);
}
emit Approval(msg.sender, spender, _allowedMOAP[msg.sender][spender]);
return true;
}
function balanceOf(address account) public view override returns (uint256) {
if (_isExcluded[account]) return _moapBalances[account];
return tokenFromReflection(_shareBalances[account]);
}
function isExcluded(address account) public view returns (bool) {
return _isExcluded[account];
}
function totalFees() public view returns (uint256) {
return _moapFeeTotal;
}
function reflect(uint256 moapAmount) public {
address sender = _msgSender();
require(!_isExcluded[sender], "Excluded addresses cant call this function");
(uint256 shareAmount,,,,) = _getValues(moapAmount);
_shareBalances[sender] = _shareBalances[sender].sub(shareAmount);
_totalShares = _totalShares.sub(shareAmount);
_moapFeeTotal = _moapFeeTotal.add(moapAmount);
}
function reflectionFromToken(uint256 moapAmount, bool deductTransferFee) public view returns(uint256) {
require(moapAmount <= _totalSupply, "Amount must be less than supply");
if (!deductTransferFee) {
(uint256 shareAmount,,,,) = _getValues(moapAmount);
return shareAmount;
} else {
(,uint256 shareTransferAmount,,,) = _getValues(moapAmount);
return shareTransferAmount;
}
}
function tokenFromReflection(uint256 shareAmount) public view returns(uint256) {
require(shareAmount <= _totalShares, "Amount must be less than _totalShares");
uint256 currentRate = _getRateForReflection();
return shareAmount.div(currentRate);
}
function excludeAccount(address account) external onlyOwner() {
require(!_isExcluded[account], "Account is already excluded");
if(_shareBalances[account] > 0) {
_moapBalances[account] = tokenFromReflection(_shareBalances[account]);
}
_isExcluded[account] = true;
_excluded.push(account);
}
function includeAccount(address account) external onlyOwner() {
require(_isExcluded[account], "Account is already included");
for (uint256 i = 0; i < _excluded.length; i++) {
if (_excluded[i] == account) {
_excluded[i] = _excluded[_excluded.length - 1];
_moapBalances[account] = 0;
_isExcluded[account] = false;
_excluded.pop();
break;
}
}
}
function _transfer(address sender, address recipient, uint256 amount) internal override(ERC20) {
require(sender != address(0), "ERC20: transfer from the zero address");
require(recipient != address(0), "ERC20: transfer to the zero address");
require(amount > 0, "Transfer amount must be greater than zero");
if (_isExcluded[sender] && !_isExcluded[recipient]) {
_transferFromExcluded(sender, recipient, amount);
} else if (!_isExcluded[sender] && _isExcluded[recipient]) {
_transferToExcluded(sender, recipient, amount);
} else if (!_isExcluded[sender] && !_isExcluded[recipient]) {
_transferStandard(sender, recipient, amount);
} else if (_isExcluded[sender] && _isExcluded[recipient]) {
_transferBothExcluded(sender, recipient, amount);
} else {
_transferStandard(sender, recipient, amount);
}
}
function _transferStandard(address sender, address recipient, uint256 moapAmount) private {
(uint256 shareAmount, uint256 shareTransferAmount, uint256 shareFee, uint256 moapTransferAmount, uint256 moapFee) = _getValues(moapAmount);
_shareBalances[sender] = _shareBalances[sender].sub(shareAmount);
_shareBalances[recipient] = _shareBalances[recipient].add(shareTransferAmount);
_reflectFee(shareFee, moapFee);
emit Transfer(sender, recipient, moapTransferAmount);
}
function _transferToExcluded(address sender, address recipient, uint256 moapAmount) private {
(uint256 shareAmount, uint256 shareTransferAmount, uint256 shareFee, uint256 moapTransferAmount, uint256 moapFee) = _getValues(moapAmount);
_shareBalances[sender] = _shareBalances[sender].sub(shareAmount);
_moapBalances[recipient] = _moapBalances[recipient].add(moapTransferAmount);
_shareBalances[recipient] = _shareBalances[recipient].add(shareTransferAmount);
_reflectFee(shareFee, moapFee);
emit Transfer(sender, recipient, moapTransferAmount);
}
function _transferFromExcluded(address sender, address recipient, uint256 moapAmount) private {
(uint256 shareAmount, uint256 shareTransferAmount, uint256 shareFee, uint256 moapTransferAmount, uint256 moapFee) = _getValues(moapAmount);
_moapBalances[sender] = _moapBalances[sender].sub(moapAmount);
_shareBalances[sender] = _shareBalances[sender].sub(shareAmount);
_shareBalances[recipient] = _shareBalances[recipient].add(shareTransferAmount);
_reflectFee(shareFee, moapFee);
emit Transfer(sender, recipient, moapTransferAmount);
}
function _transferBothExcluded(address sender, address recipient, uint256 moapAmount) private {
(uint256 shareAmount, uint256 shareTransferAmount, uint256 shareFee, uint256 moapTransferAmount, uint256 moapFee) = _getValues(moapAmount);
_moapBalances[sender] = _moapBalances[sender].sub(moapAmount);
_shareBalances[sender] = _shareBalances[sender].sub(shareAmount);
_moapBalances[recipient] = _moapBalances[recipient].add(moapTransferAmount);
_shareBalances[recipient] = _shareBalances[recipient].add(shareTransferAmount);
_reflectFee(shareFee, moapFee);
emit Transfer(sender, recipient, moapTransferAmount);
}
function _reflectFee(uint256 shareFee, uint256 moapFee) private {
_totalShares = _totalShares.sub(shareFee);
_moapFeeTotal = _moapFeeTotal.add(moapFee);
}
function _getValues(uint256 moapAmount) private view returns (uint256, uint256, uint256, uint256, uint256) {
(uint256 moapTransferAmount, uint256 moapFee) = _getTValues(moapAmount);
uint256 currentRate = _getRateForReflection();
(uint256 shareAmount, uint256 shareTransferAmount, uint256 shareFee) = _getRValues(moapAmount, moapFee, currentRate);
return (shareAmount, shareTransferAmount, shareFee, moapTransferAmount, moapFee);
}
function _getTValues(uint256 moapAmount) private view returns (uint256, uint256) {
uint256 moapFee = moapAmount.div(100).mul(_transferFee);
uint256 moapTransferAmount = moapAmount.sub(moapFee);
return (moapTransferAmount, moapFee);
}
function _getRValues(uint256 moapAmount, uint256 moapFee, uint256 currentRate) private pure returns (uint256, uint256, uint256) {
uint256 shareAmount = moapAmount.mul(currentRate);
uint256 shareFee = moapFee.mul(currentRate);
uint256 shareTransferAmount = shareAmount.sub(shareFee);
return (shareAmount, shareTransferAmount, shareFee);
}
function _getRateForReflection() private view returns(uint256) {
(uint256 shareSupply, uint256 moapSupply) = _getCurrentSupplyForReflection();
return shareSupply.div(moapSupply);
}
function _getCurrentSupplyForReflection() private view returns(uint256, uint256) {
uint256 shareSupply = _totalShares;
uint256 moapSupply = _totalSupply;
for (uint256 i = 0; i < _excluded.length; i++) {
if (_shareBalances[_excluded[i]] > shareSupply || _moapBalances[_excluded[i]] > moapSupply) return (_totalShares, _totalSupply);
shareSupply = shareSupply.sub(_shareBalances[_excluded[i]]);
moapSupply = moapSupply.sub(_moapBalances[_excluded[i]]);
}
if (shareSupply < _totalShares.div(_totalSupply)) return (_totalShares, _totalSupply);
return (shareSupply, moapSupply);
}
}