文件 1 的 15：Address.sol
pragma solidity ^0.8.0;
library Address {
function isContract(address account) internal view returns (bool) {
uint256 size;
assembly { size := extcodesize(account) }
return size > 0;
}
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");
}
function functionCall(address target, bytes memory data) internal returns (bytes memory) {
return functionCall(target, data, "Address: low-level call failed");
}
function functionCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) {
return functionCallWithValue(target, data, 0, errorMessage);
}
function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {
return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
}
function functionCallWithValue(address target, bytes memory data, uint256 value, string memory errorMessage) internal returns (bytes memory) {
require(address(this).balance >= value, "Address: insufficient balance for call");
require(isContract(target), "Address: call to non-contract");
(bool success, bytes memory returndata) = target.call{ value: value }(data);
return _verifyCallResult(success, returndata, errorMessage);
}
function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
return functionStaticCall(target, data, "Address: low-level static call failed");
}
function functionStaticCall(address target, bytes memory data, string memory errorMessage) internal view returns (bytes memory) {
require(isContract(target), "Address: static call to non-contract");
(bool success, bytes memory returndata) = target.staticcall(data);
return _verifyCallResult(success, returndata, errorMessage);
}
function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
return functionDelegateCall(target, data, "Address: low-level delegate call failed");
}
function functionDelegateCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) {
require(isContract(target), "Address: delegate call to non-contract");
(bool success, bytes memory returndata) = target.delegatecall(data);
return _verifyCallResult(success, returndata, errorMessage);
}
function _verifyCallResult(bool success, bytes memory returndata, string memory errorMessage) private pure returns(bytes memory) {
if (success) {
return returndata;
} else {
if (returndata.length > 0) {
assembly {
let returndata_size := mload(returndata)
revert(add(32, returndata), returndata_size)
}
} else {
revert(errorMessage);
}
}
}
}
文件 2 的 15：Context.sol
pragma solidity ^0.8.0;
abstract contract Context {
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes calldata) {
this;
return msg.data;
}
}
文件 3 的 15：ERC20.sol
pragma solidity ^0.8.0;
import "./IERC20.sol";
import "./extensions/IERC20Metadata.sol";
import "../../utils/Context.sol";
contract ERC20 is Context, IERC20, IERC20Metadata {
mapping (address => uint256) private _balances;
mapping (address => mapping (address => uint256)) private _allowances;
uint256 private _totalSupply;
string private _name;
string private _symbol;
constructor (string memory name_, string memory symbol_) {
_name = name_;
_symbol = symbol_;
}
function name() public view virtual override returns (string memory) {
return _name;
}
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
function decimals() public view virtual override returns (uint8) {
return 18;
}
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);
uint256 currentAllowance = _allowances[sender][_msgSender()];
require(currentAllowance >= amount, "ERC20: transfer amount exceeds allowance");
_approve(sender, _msgSender(), currentAllowance - amount);
return true;
}
function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender] + addedValue);
return true;
}
function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
uint256 currentAllowance = _allowances[_msgSender()][spender];
require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero");
_approve(_msgSender(), spender, currentAllowance - subtractedValue);
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);
uint256 senderBalance = _balances[sender];
require(senderBalance >= amount, "ERC20: transfer amount exceeds balance");
_balances[sender] = senderBalance - amount;
_balances[recipient] += 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 += amount;
_balances[account] += 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);
uint256 accountBalance = _balances[account];
require(accountBalance >= amount, "ERC20: burn amount exceeds balance");
_balances[account] = accountBalance - amount;
_totalSupply -= 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 _beforeTokenTransfer(address from, address to, uint256 amount) internal virtual { }
}
文件 4 的 15：Governable.sol
pragma solidity 0.8.6;
contract Governable {
address private _governance;
address public governancePending;
uint256 public setGovernancePendingAt;
uint256 public constant TIME_LOCK_DELAY = 2 days;
event GovernorshipTransferred(address indexed _previousGovernance, address indexed _newGovernance);
event GovernancePending(address indexed _previousGovernance, address indexed _newGovernance, uint256 _at);
modifier onlyGovernance() {
require(msg.sender == _governance, "only governance");
_;
}
function setPendingGovernance(address _newGovernance) external onlyGovernance {
require(_newGovernance != address(0), "Governable:new governance is the zero address");
governancePending = _newGovernance;
setGovernancePendingAt = block.timestamp;
emit GovernancePending(_governance, _newGovernance, setGovernancePendingAt);
}
function transferGovernorship() external onlyGovernance {
require(setGovernancePendingAt > 0, "Governable: no pending governance");
require(block.timestamp - setGovernancePendingAt > TIME_LOCK_DELAY,
"Governable: cannot confirm governance at this time");
emit GovernorshipTransferred(_governance, governancePending);
_governance = governancePending;
setGovernancePendingAt = 0;
}
function governance() public view returns (address) {
return _governance;
}
function initialize(address _initialGovernance) internal {
_governance = _initialGovernance;
emit GovernorshipTransferred(address(0), _initialGovernance);
}
}
文件 5 的 15：HATMaster.sol
pragma solidity 0.8.6;
import "openzeppelin-solidity/contracts/token/ERC20/IERC20.sol";
import "openzeppelin-solidity/contracts/token/ERC20/utils/SafeERC20.sol";
import "openzeppelin-solidity/contracts/utils/math/SafeMath.sol";
import "./HATToken.sol";
import "openzeppelin-solidity/contracts/security/ReentrancyGuard.sol";
contract HATMaster is ReentrancyGuard {
using SafeMath for uint256;
using SafeERC20 for IERC20;
struct UserInfo {
uint256 amount;
uint256 rewardDebt;
}
struct PoolUpdate {
uint256 blockNumber;
uint256 totalAllocPoint;
}
struct RewardsSplit {
uint256 hackerVestedReward;
uint256 hackerReward;
uint256 committeeReward;
uint256 swapAndBurn;
uint256 governanceHatReward;
uint256 hackerHatReward;
}
struct PoolInfo {
IERC20 lpToken;
uint256 allocPoint;
uint256 lastRewardBlock;
uint256 rewardPerShare;
uint256 totalUsersAmount;
uint256 lastProcessedTotalAllocPoint;
uint256 balance;
}
struct PoolReward {
RewardsSplit rewardsSplit;
uint256[] rewardsLevels;
bool committeeCheckIn;
uint256 vestingDuration;
uint256 vestingPeriods;
}
HATToken public immutable HAT;
uint256 public immutable REWARD_PER_BLOCK;
uint256 public immutable START_BLOCK;
uint256 public immutable MULTIPLIER_PERIOD;
PoolInfo[] public poolInfo;
PoolUpdate[] public globalPoolUpdates;
mapping(address => uint256) public poolId1;
mapping (uint256 => mapping (address => UserInfo)) public userInfo;
mapping (uint256=>PoolReward) internal poolsRewards;
event Deposit(address indexed user, uint256 indexed pid, uint256 amount);
event Withdraw(address indexed user, uint256 indexed pid, uint256 amount);
event EmergencyWithdraw(address indexed user, uint256 indexed pid, uint256 amount);
event SendReward(address indexed user, uint256 indexed pid, uint256 amount, uint256 requestedAmount);
event MassUpdatePools(uint256 _fromPid, uint256 _toPid);
constructor(
HATToken _hat,
uint256 _rewardPerBlock,
uint256 _startBlock,
uint256 _multiplierPeriod
) {
HAT = _hat;
REWARD_PER_BLOCK = _rewardPerBlock;
START_BLOCK = _startBlock;
MULTIPLIER_PERIOD = _multiplierPeriod;
}
function massUpdatePools(uint256 _fromPid, uint256 _toPid) external {
require(_toPid <= poolInfo.length, "pool range is too big");
require(_fromPid <= _toPid, "invalid pool range");
for (uint256 pid = _fromPid; pid < _toPid; ++pid) {
updatePool(pid);
}
emit MassUpdatePools(_fromPid, _toPid);
}
function claimReward(uint256 _pid) external {
_deposit(_pid, 0);
}
function updatePool(uint256 _pid) public {
PoolInfo storage pool = poolInfo[_pid];
uint256 lastRewardBlock = pool.lastRewardBlock;
if (block.number <= lastRewardBlock) {
return;
}
uint256 totalUsersAmount = pool.totalUsersAmount;
uint256 lastPoolUpdate = globalPoolUpdates.length-1;
if (totalUsersAmount == 0) {
pool.lastRewardBlock = block.number;
pool.lastProcessedTotalAllocPoint = lastPoolUpdate;
return;
}
uint256 reward = calcPoolReward(_pid, lastRewardBlock, lastPoolUpdate);
uint256 amountCanMint = HAT.minters(address(this));
reward = amountCanMint < reward ? amountCanMint : reward;
if (reward > 0) {
HAT.mint(address(this), reward);
}
pool.rewardPerShare = pool.rewardPerShare.add(reward.mul(1e12).div(totalUsersAmount));
pool.lastRewardBlock = block.number;
pool.lastProcessedTotalAllocPoint = lastPoolUpdate;
}
function getMultiplier(uint256 _from, uint256 _to) public view returns (uint256 result) {
uint256[25] memory rewardMultipliers = [uint256(4413), 4413, 8825, 7788, 6873, 6065,
5353, 4724, 4169, 3679, 3247, 2865,
2528, 2231, 1969, 1738, 1534, 1353,
1194, 1054, 930, 821, 724, 639, 0];
uint256 max = rewardMultipliers.length;
uint256 i = (_from - START_BLOCK) / MULTIPLIER_PERIOD + 1;
for (; i < max; i++) {
uint256 endBlock = MULTIPLIER_PERIOD * i + START_BLOCK;
if (_to <= endBlock) {
break;
}
result += (endBlock - _from) * rewardMultipliers[i-1];
_from = endBlock;
}
result += (_to - _from) * rewardMultipliers[i > max ? (max-1) : (i-1)];
}
function getRewardForBlocksRange(uint256 _from, uint256 _to, uint256 _allocPoint, uint256 _totalAllocPoint)
public
view
returns (uint256 reward) {
if (_totalAllocPoint > 0) {
reward = getMultiplier(_from, _to).mul(REWARD_PER_BLOCK).mul(_allocPoint).div(_totalAllocPoint).div(100);
}
}
function calcPoolReward(uint256 _pid, uint256 _from, uint256 _lastPoolUpdate) public view returns(uint256 reward) {
uint256 poolAllocPoint = poolInfo[_pid].allocPoint;
uint256 i = poolInfo[_pid].lastProcessedTotalAllocPoint;
for (; i < _lastPoolUpdate; i++) {
uint256 nextUpdateBlock = globalPoolUpdates[i+1].blockNumber;
reward =
reward.add(getRewardForBlocksRange(_from,
nextUpdateBlock,
poolAllocPoint,
globalPoolUpdates[i].totalAllocPoint));
_from = nextUpdateBlock;
}
return reward.add(getRewardForBlocksRange(_from,
block.number,
poolAllocPoint,
globalPoolUpdates[i].totalAllocPoint));
}
function _deposit(uint256 _pid, uint256 _amount) internal nonReentrant {
require(poolsRewards[_pid].committeeCheckIn, "committee not checked in yet");
PoolInfo storage pool = poolInfo[_pid];
UserInfo storage user = userInfo[_pid][msg.sender];
updatePool(_pid);
if (user.amount > 0) {
uint256 pending = user.amount.mul(pool.rewardPerShare).div(1e12).sub(user.rewardDebt);
if (pending > 0) {
safeTransferReward(msg.sender, pending, _pid);
}
}
if (_amount > 0) {
uint256 lpSupply = pool.balance;
pool.lpToken.safeTransferFrom(address(msg.sender), address(this), _amount);
pool.balance = pool.balance.add(_amount);
uint256 factoredAmount = _amount;
if (pool.totalUsersAmount > 0) {
factoredAmount = pool.totalUsersAmount.mul(_amount).div(lpSupply);
}
user.amount = user.amount.add(factoredAmount);
pool.totalUsersAmount = pool.totalUsersAmount.add(factoredAmount);
}
user.rewardDebt = user.amount.mul(pool.rewardPerShare).div(1e12);
emit Deposit(msg.sender, _pid, _amount);
}
function _withdraw(uint256 _pid, uint256 _amount) internal nonReentrant {
PoolInfo storage pool = poolInfo[_pid];
UserInfo storage user = userInfo[_pid][msg.sender];
require(user.amount >= _amount, "withdraw: not enough user balance");
updatePool(_pid);
uint256 pending = user.amount.mul(pool.rewardPerShare).div(1e12).sub(user.rewardDebt);
if (pending > 0) {
safeTransferReward(msg.sender, pending, _pid);
}
if (_amount > 0) {
user.amount = user.amount.sub(_amount);
uint256 amountToWithdraw = _amount.mul(pool.balance).div(pool.totalUsersAmount);
pool.balance = pool.balance.sub(amountToWithdraw);
pool.lpToken.safeTransfer(msg.sender, amountToWithdraw);
pool.totalUsersAmount = pool.totalUsersAmount.sub(_amount);
}
user.rewardDebt = user.amount.mul(pool.rewardPerShare).div(1e12);
emit Withdraw(msg.sender, _pid, _amount);
}
function _emergencyWithdraw(uint256 _pid) internal {
PoolInfo storage pool = poolInfo[_pid];
UserInfo storage user = userInfo[_pid][msg.sender];
require(user.amount > 0, "user.amount = 0");
uint256 factoredBalance = user.amount.mul(pool.balance).div(pool.totalUsersAmount);
pool.totalUsersAmount = pool.totalUsersAmount.sub(user.amount);
user.amount = 0;
user.rewardDebt = 0;
pool.balance = pool.balance.sub(factoredBalance);
pool.lpToken.safeTransfer(msg.sender, factoredBalance);
emit EmergencyWithdraw(msg.sender, _pid, factoredBalance);
}
function add(uint256 _allocPoint, IERC20 _lpToken) internal {
require(poolId1[address(_lpToken)] == 0, "HATMaster::add: lpToken is already in pool");
poolId1[address(_lpToken)] = poolInfo.length + 1;
uint256 lastRewardBlock = block.number > START_BLOCK ? block.number : START_BLOCK;
uint256 totalAllocPoint = (globalPoolUpdates.length == 0) ? _allocPoint :
globalPoolUpdates[globalPoolUpdates.length-1].totalAllocPoint.add(_allocPoint);
if (globalPoolUpdates.length > 0 &&
globalPoolUpdates[globalPoolUpdates.length-1].blockNumber == block.number) {
globalPoolUpdates[globalPoolUpdates.length-1].totalAllocPoint = totalAllocPoint;
} else {
globalPoolUpdates.push(PoolUpdate({
blockNumber: block.number,
totalAllocPoint: totalAllocPoint
}));
}
poolInfo.push(PoolInfo({
lpToken: _lpToken,
allocPoint: _allocPoint,
lastRewardBlock: lastRewardBlock,
rewardPerShare: 0,
totalUsersAmount: 0,
lastProcessedTotalAllocPoint: globalPoolUpdates.length-1,
balance: 0
}));
}
function set(uint256 _pid, uint256 _allocPoint) internal {
updatePool(_pid);
uint256 totalAllocPoint =
globalPoolUpdates[globalPoolUpdates.length-1].totalAllocPoint
.sub(poolInfo[_pid].allocPoint).add(_allocPoint);
if (globalPoolUpdates[globalPoolUpdates.length-1].blockNumber == block.number) {
globalPoolUpdates[globalPoolUpdates.length-1].totalAllocPoint = totalAllocPoint;
} else {
globalPoolUpdates.push(PoolUpdate({
blockNumber: block.number,
totalAllocPoint: totalAllocPoint
}));
}
poolInfo[_pid].allocPoint = _allocPoint;
}
function safeTransferReward(address _to, uint256 _amount, uint256 _pid) internal {
uint256 hatBalance = HAT.balanceOf(address(this));
if (_amount > hatBalance) {
HAT.transfer(_to, hatBalance);
emit SendReward(_to, _pid, hatBalance, _amount);
} else {
HAT.transfer(_to, _amount);
emit SendReward(_to, _pid, _amount, _amount);
}
}
}
文件 6 的 15：HATToken.sol
pragma solidity 0.8.6;
import "openzeppelin-solidity/contracts/utils/math/SafeMath.sol";
import "openzeppelin-solidity/contracts/token/ERC20/IERC20.sol";
contract HATToken is IERC20 {
struct PendingMinter {
uint256 seedAmount;
uint256 setMinterPendingAt;
}
struct Checkpoint {
uint32 fromBlock;
uint96 votes;
}
string public constant name = "hats.finance";
string public constant symbol = "HAT";
uint8 public constant decimals = 18;
uint public override totalSupply;
address public governance;
address public governancePending;
uint256 public setGovernancePendingAt;
uint256 public immutable timeLockDelay;
uint256 public constant CAP = 10000000e18;
mapping (address => uint256) public minters;
mapping (address => PendingMinter) public pendingMinters;
mapping (address => mapping (address => uint96)) internal allowances;
mapping (address => uint96) internal balances;
mapping (address => address) public delegates;
mapping (address => mapping (uint32 => Checkpoint)) public checkpoints;
mapping (address => uint32) public numCheckpoints;
mapping (address => uint) public nonces;
bytes32 public constant DOMAIN_TYPEHASH =
keccak256("EIP712Domain(string name,uint256 chainId,address verifyingContract)");
bytes32 public constant DELEGATION_TYPEHASH =
keccak256("Delegation(address delegatee,uint256 nonce,uint256 expiry)");
bytes32 public constant PERMIT_TYPEHASH =
keccak256("Permit(address owner,address spender,uint256 value,uint256 nonce,uint256 deadline)");
event MinterPending(address indexed minter, uint256 seedAmount, uint256 at);
event MinterChanged(address indexed minter, uint256 seedAmount);
event GovernancePending(address indexed oldGovernance, address indexed newGovernance, uint256 at);
event GovernanceChanged(address indexed oldGovernance, address indexed newGovernance);
event DelegateChanged(address indexed delegator, address indexed fromDelegate, address indexed toDelegate);
event DelegateVotesChanged(address indexed delegate, uint previousBalance, uint newBalance);
constructor(address _governance, uint256 _timeLockDelay) {
governance = _governance;
timeLockDelay = _timeLockDelay;
}
function setPendingGovernance(address _governance) external {
require(msg.sender == governance, "HAT:!governance");
require(_governance != address(0), "HAT:!_governance");
governancePending = _governance;
setGovernancePendingAt = block.timestamp;
emit GovernancePending(governance, _governance, setGovernancePendingAt);
}
function confirmGovernance() external {
require(msg.sender == governance, "HAT:!governance");
require(setGovernancePendingAt > 0, "HAT:!governancePending");
require(block.timestamp - setGovernancePendingAt > timeLockDelay,
"HAT: cannot confirm governance at this time");
emit GovernanceChanged(governance, governancePending);
governance = governancePending;
setGovernancePendingAt = 0;
}
function setPendingMinter(address _minter, uint256 _cap) external {
require(msg.sender == governance, "HAT::!governance");
pendingMinters[_minter].seedAmount = _cap;
pendingMinters[_minter].setMinterPendingAt = block.timestamp;
emit MinterPending(_minter, _cap, pendingMinters[_minter].setMinterPendingAt);
}
function confirmMinter(address _minter) external {
require(msg.sender == governance, "HAT::mint: only the governance can confirm minter");
require(pendingMinters[_minter].setMinterPendingAt > 0, "HAT:: no pending minter was set");
require(block.timestamp - pendingMinters[_minter].setMinterPendingAt > timeLockDelay,
"HATToken: cannot confirm at this time");
minters[_minter] = pendingMinters[_minter].seedAmount;
pendingMinters[_minter].setMinterPendingAt = 0;
emit MinterChanged(_minter, pendingMinters[_minter].seedAmount);
}
function burn(uint256 _amount) external {
return _burn(msg.sender, _amount);
}
function mint(address _account, uint _amount) external {
require(minters[msg.sender] >= _amount, "HATToken: amount greater than limitation");
minters[msg.sender] = SafeMath.sub(minters[msg.sender], _amount);
_mint(_account, _amount);
}
function allowance(address account, address spender) external override view returns (uint) {
return allowances[account][spender];
}
function approve(address spender, uint rawAmount) external override returns (bool) {
uint96 amount;
if (rawAmount == type(uint256).max) {
amount = type(uint96).max;
} else {
amount = safe96(rawAmount, "HAT::approve: amount exceeds 96 bits");
}
allowances[msg.sender][spender] = amount;
emit Approval(msg.sender, spender, amount);
return true;
}
function increaseAllowance(address spender, uint addedValue) external virtual returns (bool) {
require(spender != address(0), "HAT: increaseAllowance to the zero address");
uint96 valueToAdd = safe96(addedValue, "HAT::increaseAllowance: addedValue exceeds 96 bits");
allowances[msg.sender][spender] =
add96(allowances[msg.sender][spender], valueToAdd, "HAT::increaseAllowance: overflows");
emit Approval(msg.sender, spender, allowances[msg.sender][spender]);
return true;
}
function decreaseAllowance(address spender, uint subtractedValue) external virtual returns (bool) {
require(spender != address(0), "HAT: decreaseAllowance to the zero address");
uint96 valueTosubtract = safe96(subtractedValue, "HAT::decreaseAllowance: subtractedValue exceeds 96 bits");
allowances[msg.sender][spender] = sub96(allowances[msg.sender][spender], valueTosubtract,
"HAT::decreaseAllowance: spender allowance is less than subtractedValue");
emit Approval(msg.sender, spender, allowances[msg.sender][spender]);
return true;
}
function permit(address owner, address spender, uint rawAmount, uint deadline, uint8 v, bytes32 r, bytes32 s) external {
uint96 amount;
if (rawAmount == type(uint256).max) {
amount = type(uint96).max;
} else {
amount = safe96(rawAmount, "HAT::permit: amount exceeds 96 bits");
}
bytes32 domainSeparator = keccak256(abi.encode(DOMAIN_TYPEHASH, keccak256(bytes(name)), getChainId(), address(this)));
bytes32 structHash = keccak256(abi.encode(PERMIT_TYPEHASH, owner, spender, rawAmount, nonces[owner]++, deadline));
bytes32 digest = keccak256(abi.encodePacked("\x19\x01", domainSeparator, structHash));
address signatory = ecrecover(digest, v, r, s);
require(signatory != address(0), "HAT::permit: invalid signature");
require(signatory == owner, "HAT::permit: unauthorized");
require(block.timestamp <= deadline, "HAT::permit: signature expired");
allowances[owner][spender] = amount;
emit Approval(owner, spender, amount);
}
function balanceOf(address account) external view override returns (uint) {
return balances[account];
}
function transfer(address dst, uint rawAmount) external override returns (bool) {
uint96 amount = safe96(rawAmount, "HAT::transfer: amount exceeds 96 bits");
_transferTokens(msg.sender, dst, amount);
return true;
}
function transferFrom(address src, address dst, uint rawAmount) external override returns (bool) {
address spender = msg.sender;
uint96 spenderAllowance = allowances[src][spender];
uint96 amount = safe96(rawAmount, "HAT::approve: amount exceeds 96 bits");
if (spender != src && spenderAllowance != type(uint96).max) {
uint96 newAllowance = sub96(spenderAllowance, amount,
"HAT::transferFrom: transfer amount exceeds spender allowance");
allowances[src][spender] = newAllowance;
emit Approval(src, spender, newAllowance);
}
_transferTokens(src, dst, amount);
return true;
}
function delegate(address delegatee) external {
return _delegate(msg.sender, delegatee);
}
function delegateBySig(address delegatee, uint nonce, uint expiry, uint8 v, bytes32 r, bytes32 s) external {
bytes32 domainSeparator = keccak256(abi.encode(DOMAIN_TYPEHASH, keccak256(bytes(name)), getChainId(), address(this)));
bytes32 structHash = keccak256(abi.encode(DELEGATION_TYPEHASH, delegatee, nonce, expiry));
bytes32 digest = keccak256(abi.encodePacked("\x19\x01", domainSeparator, structHash));
address signatory = ecrecover(digest, v, r, s);
require(signatory != address(0), "HAT::delegateBySig: invalid signature");
require(nonce == nonces[signatory]++, "HAT::delegateBySig: invalid nonce");
require(block.timestamp <= expiry, "HAT::delegateBySig: signature expired");
return _delegate(signatory, delegatee);
}
function getCurrentVotes(address account) external view returns (uint96) {
uint32 nCheckpoints = numCheckpoints[account];
return nCheckpoints > 0 ? checkpoints[account][nCheckpoints - 1].votes : 0;
}
function getPriorVotes(address account, uint blockNumber) external view returns (uint96) {
require(blockNumber < block.number, "HAT::getPriorVotes: not yet determined");
uint32 nCheckpoints = numCheckpoints[account];
if (nCheckpoints == 0) {
return 0;
}
if (checkpoints[account][nCheckpoints - 1].fromBlock <= blockNumber) {
return checkpoints[account][nCheckpoints - 1].votes;
}
if (checkpoints[account][0].fromBlock > blockNumber) {
return 0;
}
uint32 lower = 0;
uint32 upper = nCheckpoints - 1;
while (upper > lower) {
uint32 center = upper - (upper - lower) / 2;
Checkpoint memory cp = checkpoints[account][center];
if (cp.fromBlock == blockNumber) {
return cp.votes;
} else if (cp.fromBlock < blockNumber) {
lower = center;
} else {
upper = center - 1;
}
}
return checkpoints[account][lower].votes;
}
function _mint(address dst, uint rawAmount) internal {
require(dst != address(0), "HAT::mint: cannot transfer to the zero address");
require(SafeMath.add(totalSupply, rawAmount) <= CAP, "ERC20Capped: CAP exceeded");
uint96 amount = safe96(rawAmount, "HAT::mint: amount exceeds 96 bits");
totalSupply = safe96(SafeMath.add(totalSupply, amount), "HAT::mint: totalSupply exceeds 96 bits");
balances[dst] = add96(balances[dst], amount, "HAT::mint: transfer amount overflows");
emit Transfer(address(0), dst, amount);
_moveDelegates(address(0), delegates[dst], amount);
}
function _burn(address src, uint rawAmount) internal {
require(src != address(0), "HAT::burn: cannot burn to the zero address");
uint96 amount = safe96(rawAmount, "HAT::burn: amount exceeds 96 bits");
totalSupply = safe96(SafeMath.sub(totalSupply, amount), "HAT::mint: totalSupply exceeds 96 bits");
balances[src] = sub96(balances[src], amount, "HAT::burn: burn amount exceeds balance");
emit Transfer(src, address(0), amount);
_moveDelegates(delegates[src], address(0), amount);
}
function _delegate(address delegator, address delegatee) internal {
address currentDelegate = delegates[delegator];
uint96 delegatorBalance = balances[delegator];
delegates[delegator] = delegatee;
emit DelegateChanged(delegator, currentDelegate, delegatee);
_moveDelegates(currentDelegate, delegatee, delegatorBalance);
}
function _transferTokens(address src, address dst, uint96 amount) internal {
require(src != address(0), "HAT::_transferTokens: cannot transfer from the zero address");
require(dst != address(0), "HAT::_transferTokens: cannot transfer to the zero address");
balances[src] = sub96(balances[src], amount, "HAT::_transferTokens: transfer amount exceeds balance");
balances[dst] = add96(balances[dst], amount, "HAT::_transferTokens: transfer amount overflows");
emit Transfer(src, dst, amount);
_moveDelegates(delegates[src], delegates[dst], amount);
}
function _moveDelegates(address srcRep, address dstRep, uint96 amount) internal {
if (srcRep != dstRep && amount > 0) {
if (srcRep != address(0)) {
uint32 srcRepNum = numCheckpoints[srcRep];
uint96 srcRepOld = srcRepNum > 0 ? checkpoints[srcRep][srcRepNum - 1].votes : 0;
uint96 srcRepNew = sub96(srcRepOld, amount, "HAT::_moveVotes: vote amount underflows");
_writeCheckpoint(srcRep, srcRepNum, srcRepOld, srcRepNew);
}
if (dstRep != address(0)) {
uint32 dstRepNum = numCheckpoints[dstRep];
uint96 dstRepOld = dstRepNum > 0 ? checkpoints[dstRep][dstRepNum - 1].votes : 0;
uint96 dstRepNew = add96(dstRepOld, amount, "HAT::_moveVotes: vote amount overflows");
_writeCheckpoint(dstRep, dstRepNum, dstRepOld, dstRepNew);
}
}
}
function _writeCheckpoint(address delegatee, uint32 nCheckpoints, uint96 oldVotes, uint96 newVotes) internal {
uint32 blockNumber = safe32(block.number, "HAT::_writeCheckpoint: block number exceeds 32 bits");
if (nCheckpoints > 0 && checkpoints[delegatee][nCheckpoints - 1].fromBlock == blockNumber) {
checkpoints[delegatee][nCheckpoints - 1].votes = newVotes;
} else {
checkpoints[delegatee][nCheckpoints] = Checkpoint(blockNumber, newVotes);
numCheckpoints[delegatee] = nCheckpoints + 1;
}
emit DelegateVotesChanged(delegatee, oldVotes, newVotes);
}
function safe32(uint n, string memory errorMessage) internal pure returns (uint32) {
require(n < 2**32, errorMessage);
return uint32(n);
}
function safe96(uint n, string memory errorMessage) internal pure returns (uint96) {
require(n < 2**96, errorMessage);
return uint96(n);
}
function add96(uint96 a, uint96 b, string memory errorMessage) internal pure returns (uint96) {
uint96 c = a + b;
require(c >= a, errorMessage);
return c;
}
function sub96(uint96 a, uint96 b, string memory errorMessage) internal pure returns (uint96) {
require(b <= a, errorMessage);
return a - b;
}
function getChainId() internal view returns (uint) {
uint256 chainId;
assembly { chainId := chainid() }
return chainId;
}
}
文件 7 的 15：HATVaults.sol
pragma solidity 0.8.6;
import "./interfaces/ISwapRouter.sol";
import "openzeppelin-solidity/contracts/token/ERC20/utils/SafeERC20.sol";
import "openzeppelin-solidity/contracts/token/ERC20/ERC20.sol";
import "./HATMaster.sol";
import "./tokenlock/ITokenLockFactory.sol";
import "./Governable.sol";
contract HATVaults is Governable, HATMaster {
using SafeMath for uint256;
using SafeERC20 for IERC20;
struct PendingApproval {
address beneficiary;
uint256 severity;
address approver;
}
struct ClaimReward {
uint256 hackerVestedReward;
uint256 hackerReward;
uint256 committeeReward;
uint256 swapAndBurn;
uint256 governanceHatReward;
uint256 hackerHatReward;
}
struct PendingRewardsLevels {
uint256 timestamp;
uint256[] rewardsLevels;
}
struct GeneralParameters {
uint256 hatVestingDuration;
uint256 hatVestingPeriods;
uint256 withdrawPeriod;
uint256 safetyPeriod;
uint256 setRewardsLevelsDelay;
uint256 withdrawRequestEnablePeriod;
uint256 withdrawRequestPendingPeriod;
uint256 claimFee;
}
mapping(uint256=>address) public committees;
mapping(address => uint256) public swapAndBurns;
mapping(address => mapping(address => uint256)) public hackersHatRewards;
mapping(address => uint256) public governanceHatRewards;
mapping(uint256 => PendingApproval) public pendingApprovals;
mapping(uint256 => mapping(address => uint256)) public withdrawRequests;
mapping(uint256 => PendingRewardsLevels) public pendingRewardsLevels;
mapping(uint256 => bool) public poolDepositPause;
GeneralParameters public generalParameters;
uint256 internal constant REWARDS_LEVEL_DENOMINATOR = 10000;
ITokenLockFactory public immutable tokenLockFactory;
ISwapRouter public immutable uniSwapRouter;
uint256 public constant MINIMUM_DEPOSIT = 1e6;
modifier onlyCommittee(uint256 _pid) {
require(committees[_pid] == msg.sender, "only committee");
_;
}
modifier noPendingApproval(uint256 _pid) {
require(pendingApprovals[_pid].beneficiary == address(0), "pending approval exist");
_;
}
modifier noSafetyPeriod() {
require(block.timestamp % (generalParameters.withdrawPeriod + generalParameters.safetyPeriod) <
generalParameters.withdrawPeriod,
"safety period");
_;
}
event SetCommittee(uint256 indexed _pid, address indexed _committee);
event AddPool(uint256 indexed _pid,
uint256 indexed _allocPoint,
address indexed _lpToken,
address _committee,
string _descriptionHash,
uint256[] _rewardsLevels,
RewardsSplit _rewardsSplit,
uint256 _rewardVestingDuration,
uint256 _rewardVestingPeriods);
event SetPool(uint256 indexed _pid, uint256 indexed _allocPoint, bool indexed _registered, string _descriptionHash);
event Claim(address indexed _claimer, string _descriptionHash);
event SetRewardsSplit(uint256 indexed _pid, RewardsSplit _rewardsSplit);
event SetRewardsLevels(uint256 indexed _pid, uint256[] _rewardsLevels);
event PendingRewardsLevelsLog(uint256 indexed _pid, uint256[] _rewardsLevels, uint256 _timeStamp);
event SwapAndSend(uint256 indexed _pid,
address indexed _beneficiary,
uint256 indexed _amountSwaped,
uint256 _amountReceived,
address _tokenLock);
event SwapAndBurn(uint256 indexed _pid, uint256 indexed _amountSwaped, uint256 indexed _amountBurned);
event SetVestingParams(uint256 indexed _pid, uint256 indexed _duration, uint256 indexed _periods);
event SetHatVestingParams(uint256 indexed _duration, uint256 indexed _periods);
event ClaimApprove(address indexed _approver,
uint256 indexed _pid,
address indexed _beneficiary,
uint256 _severity,
address _tokenLock,
ClaimReward _claimReward);
event PendingApprovalLog(uint256 indexed _pid,
address indexed _beneficiary,
uint256 indexed _severity,
address _approver);
event WithdrawRequest(uint256 indexed _pid,
address indexed _beneficiary,
uint256 indexed _withdrawEnableTime);
event SetWithdrawSafetyPeriod(uint256 indexed _withdrawPeriod, uint256 indexed _safetyPeriod);
event RewardDepositors(uint256 indexed _pid, uint256 indexed _amount);
constructor(
address _rewardsToken,
uint256 _rewardPerBlock,
uint256 _startBlock,
uint256 _multiplierPeriod,
address _hatGovernance,
ISwapRouter _uniSwapRouter,
ITokenLockFactory _tokenLockFactory
) HATMaster(HATToken(_rewardsToken), _rewardPerBlock, _startBlock, _multiplierPeriod) {
Governable.initialize(_hatGovernance);
uniSwapRouter = _uniSwapRouter;
tokenLockFactory = _tokenLockFactory;
generalParameters = GeneralParameters({
hatVestingDuration: 90 days,
hatVestingPeriods:90,
withdrawPeriod: 11 hours,
safetyPeriod: 1 hours,
setRewardsLevelsDelay: 2 days,
withdrawRequestEnablePeriod: 7 days,
withdrawRequestPendingPeriod: 7 days,
claimFee: 0
});
}
function pendingApprovalClaim(uint256 _pid, address _beneficiary, uint256 _severity)
external
onlyCommittee(_pid)
noPendingApproval(_pid) {
require(_beneficiary != address(0), "beneficiary is zero");
require(block.timestamp % (generalParameters.withdrawPeriod + generalParameters.safetyPeriod) >=
generalParameters.withdrawPeriod,
"none safety period");
require(_severity < poolsRewards[_pid].rewardsLevels.length, "_severity is not in the range");
pendingApprovals[_pid] = PendingApproval({
beneficiary: _beneficiary,
severity: _severity,
approver: msg.sender
});
emit PendingApprovalLog(_pid, _beneficiary, _severity, msg.sender);
}
function setWithdrawRequestParams(uint256 _withdrawRequestPendingPeriod, uint256 _withdrawRequestEnablePeriod)
external
onlyGovernance {
generalParameters.withdrawRequestPendingPeriod = _withdrawRequestPendingPeriod;
generalParameters.withdrawRequestEnablePeriod = _withdrawRequestEnablePeriod;
}
function dismissPendingApprovalClaim(uint256 _pid) external onlyGovernance {
delete pendingApprovals[_pid];
}
function approveClaim(uint256 _pid) external onlyGovernance nonReentrant {
require(pendingApprovals[_pid].beneficiary != address(0), "no pending approval");
PoolReward storage poolReward = poolsRewards[_pid];
PendingApproval memory pendingApproval = pendingApprovals[_pid];
delete pendingApprovals[_pid];
IERC20 lpToken = poolInfo[_pid].lpToken;
ClaimReward memory claimRewards = calcClaimRewards(_pid, pendingApproval.severity);
poolInfo[_pid].balance = poolInfo[_pid].balance.sub(
claimRewards.hackerReward
.add(claimRewards.hackerVestedReward)
.add(claimRewards.committeeReward)
.add(claimRewards.swapAndBurn)
.add(claimRewards.hackerHatReward)
.add(claimRewards.governanceHatReward));
address tokenLock;
if (claimRewards.hackerVestedReward > 0) {
tokenLock = tokenLockFactory.createTokenLock(
address(lpToken),
0x000000000000000000000000000000000000dEaD,
pendingApproval.beneficiary,
claimRewards.hackerVestedReward,
block.timestamp,
block.timestamp + poolReward.vestingDuration,
poolReward.vestingPeriods,
0,
0,
ITokenLock.Revocability.Disabled,
false
);
lpToken.safeTransfer(tokenLock, claimRewards.hackerVestedReward);
}
lpToken.safeTransfer(pendingApproval.beneficiary, claimRewards.hackerReward);
lpToken.safeTransfer(pendingApproval.approver, claimRewards.committeeReward);
swapAndBurns[address(lpToken)] = swapAndBurns[address(lpToken)].add(claimRewards.swapAndBurn);
governanceHatRewards[address(lpToken)] =
governanceHatRewards[address(lpToken)].add(claimRewards.governanceHatReward);
hackersHatRewards[pendingApproval.beneficiary][address(lpToken)] =
hackersHatRewards[pendingApproval.beneficiary][address(lpToken)].add(claimRewards.hackerHatReward);
emit ClaimApprove(msg.sender,
_pid,
pendingApproval.beneficiary,
pendingApproval.severity,
tokenLock,
claimRewards);
assert(poolInfo[_pid].balance > 0);
}
function rewardDepositors(uint256 _pid, uint256 _amount) external {
require(poolInfo[_pid].balance.add(_amount).div(MINIMUM_DEPOSIT) < poolInfo[_pid].totalUsersAmount,
"amount to reward is too big");
poolInfo[_pid].lpToken.safeTransferFrom(msg.sender, address(this), _amount);
poolInfo[_pid].balance = poolInfo[_pid].balance.add(_amount);
emit RewardDepositors(_pid, _amount);
}
function setClaimFee(uint256 _fee) external onlyGovernance {
generalParameters.claimFee = _fee;
}
function setWithdrawSafetyPeriod(uint256 _withdrawPeriod, uint256 _safetyPeriod) external onlyGovernance {
generalParameters.withdrawPeriod = _withdrawPeriod;
generalParameters.safetyPeriod = _safetyPeriod;
emit SetWithdrawSafetyPeriod(generalParameters.withdrawPeriod, generalParameters.safetyPeriod);
}
function claim(string memory _descriptionHash) external payable {
if (generalParameters.claimFee > 0) {
require(msg.value >= generalParameters.claimFee, "not enough fee payed");
payable(governance()).transfer(msg.value);
}
emit Claim(msg.sender, _descriptionHash);
}
function setVestingParams(uint256 _pid, uint256 _duration, uint256 _periods) external onlyGovernance {
require(_duration < 120 days, "vesting duration is too long");
require(_periods > 0, "vesting periods cannot be zero");
require(_duration >= _periods, "vesting duration smaller than periods");
poolsRewards[_pid].vestingDuration = _duration;
poolsRewards[_pid].vestingPeriods = _periods;
emit SetVestingParams(_pid, _duration, _periods);
}
function setHatVestingParams(uint256 _duration, uint256 _periods) external onlyGovernance {
require(_duration < 180 days, "vesting duration is too long");
require(_periods > 0, "vesting periods cannot be zero");
require(_duration >= _periods, "vesting duration smaller than periods");
generalParameters.hatVestingDuration = _duration;
generalParameters.hatVestingPeriods = _periods;
emit SetHatVestingParams(_duration, _periods);
}
function setRewardsSplit(uint256 _pid, RewardsSplit memory _rewardsSplit)
external
onlyGovernance noPendingApproval(_pid) noSafetyPeriod {
validateSplit(_rewardsSplit);
poolsRewards[_pid].rewardsSplit = _rewardsSplit;
emit SetRewardsSplit(_pid, _rewardsSplit);
}
function setRewardsLevelsDelay(uint256 _delay)
external
onlyGovernance {
require(_delay >= 2 days, "delay is too short");
generalParameters.setRewardsLevelsDelay = _delay;
}
function setPendingRewardsLevels(uint256 _pid, uint256[] memory _rewardsLevels)
external
onlyCommittee(_pid) noPendingApproval(_pid) {
pendingRewardsLevels[_pid].rewardsLevels = checkRewardsLevels(_rewardsLevels);
pendingRewardsLevels[_pid].timestamp = block.timestamp;
emit PendingRewardsLevelsLog(_pid, _rewardsLevels, pendingRewardsLevels[_pid].timestamp);
}
function setRewardsLevels(uint256 _pid)
external
onlyCommittee(_pid) noPendingApproval(_pid) {
require(pendingRewardsLevels[_pid].timestamp > 0, "no pending set rewards levels");
require(block.timestamp - pendingRewardsLevels[_pid].timestamp > generalParameters.setRewardsLevelsDelay,
"cannot confirm setRewardsLevels at this time");
poolsRewards[_pid].rewardsLevels = pendingRewardsLevels[_pid].rewardsLevels;
delete pendingRewardsLevels[_pid];
emit SetRewardsLevels(_pid, poolsRewards[_pid].rewardsLevels);
}
function committeeCheckIn(uint256 _pid) external onlyCommittee(_pid) {
poolsRewards[_pid].committeeCheckIn = true;
}
function setCommittee(uint256 _pid, address _committee)
external {
require(_committee != address(0), "committee is zero");
if (msg.sender == governance() && committees[_pid] != msg.sender) {
require(!poolsRewards[_pid].committeeCheckIn, "Committee already checked in");
} else {
require(committees[_pid] == msg.sender, "Only committee");
}
committees[_pid] = _committee;
emit SetCommittee(_pid, _committee);
}
function addPool(uint256 _allocPoint,
address _lpToken,
address _committee,
uint256[] memory _rewardsLevels,
RewardsSplit memory _rewardsSplit,
string memory _descriptionHash,
uint256[2] memory _rewardVestingParams)
external
onlyGovernance {
require(_rewardVestingParams[0] < 120 days, "vesting duration is too long");
require(_rewardVestingParams[1] > 0, "vesting periods cannot be zero");
require(_rewardVestingParams[0] >= _rewardVestingParams[1], "vesting duration smaller than periods");
require(_committee != address(0), "committee is zero");
add(_allocPoint, IERC20(_lpToken));
uint256 poolId = poolInfo.length-1;
committees[poolId] = _committee;
uint256[] memory rewardsLevels = checkRewardsLevels(_rewardsLevels);
RewardsSplit memory rewardsSplit = (_rewardsSplit.hackerVestedReward == 0 && _rewardsSplit.hackerReward == 0) ?
getDefaultRewardsSplit() : _rewardsSplit;
validateSplit(rewardsSplit);
poolsRewards[poolId] = PoolReward({
rewardsLevels: rewardsLevels,
rewardsSplit: rewardsSplit,
committeeCheckIn: false,
vestingDuration: _rewardVestingParams[0],
vestingPeriods: _rewardVestingParams[1]
});
emit AddPool(poolId,
_allocPoint,
address(_lpToken),
_committee,
_descriptionHash,
rewardsLevels,
rewardsSplit,
_rewardVestingParams[0],
_rewardVestingParams[1]);
}
function setPool(uint256 _pid,
uint256 _allocPoint,
bool _registered,
bool _depositPause,
string memory _descriptionHash)
external onlyGovernance {
require(poolInfo[_pid].lpToken != IERC20(address(0)), "pool does not exist");
set(_pid, _allocPoint);
poolDepositPause[_pid] = _depositPause;
emit SetPool(_pid, _allocPoint, _registered, _descriptionHash);
}
function swapBurnSend(uint256 _pid,
address _beneficiary,
uint256 _amountOutMinimum,
uint24[2] memory _fees)
external
onlyGovernance {
IERC20 token = poolInfo[_pid].lpToken;
uint256 amountToSwapAndBurn = swapAndBurns[address(token)];
uint256 amountForHackersHatRewards = hackersHatRewards[_beneficiary][address(token)];
uint256 amount = amountToSwapAndBurn.add(amountForHackersHatRewards).add(governanceHatRewards[address(token)]);
require(amount > 0, "amount is zero");
swapAndBurns[address(token)] = 0;
governanceHatRewards[address(token)] = 0;
hackersHatRewards[_beneficiary][address(token)] = 0;
uint256 hatsReceived = swapTokenForHAT(amount, token, _fees, _amountOutMinimum);
uint256 burntHats = hatsReceived.mul(amountToSwapAndBurn).div(amount);
if (burntHats > 0) {
HAT.burn(burntHats);
}
emit SwapAndBurn(_pid, amount, burntHats);
address tokenLock;
uint256 hackerReward = hatsReceived.mul(amountForHackersHatRewards).div(amount);
if (hackerReward > 0) {
tokenLock = tokenLockFactory.createTokenLock(
address(HAT),
0x000000000000000000000000000000000000dEaD,
_beneficiary,
hackerReward,
block.timestamp,
block.timestamp + generalParameters.hatVestingDuration,
generalParameters.hatVestingPeriods,
0,
0,
ITokenLock.Revocability.Disabled,
true
);
HAT.transfer(tokenLock, hackerReward);
}
emit SwapAndSend(_pid, _beneficiary, amount, hackerReward, tokenLock);
HAT.transfer(governance(), hatsReceived.sub(hackerReward).sub(burntHats));
}
function withdrawRequest(uint256 _pid) external {
require(block.timestamp > withdrawRequests[_pid][msg.sender] + generalParameters.withdrawRequestEnablePeriod,
"pending withdraw request exist");
withdrawRequests[_pid][msg.sender] = block.timestamp + generalParameters.withdrawRequestPendingPeriod;
emit WithdrawRequest(_pid, msg.sender, withdrawRequests[_pid][msg.sender]);
}
function deposit(uint256 _pid, uint256 _amount) external {
require(!poolDepositPause[_pid], "deposit paused");
require(_amount >= MINIMUM_DEPOSIT, "amount less than 1e6");
withdrawRequests[_pid][msg.sender] = 0;
_deposit(_pid, _amount);
}
function withdraw(uint256 _pid, uint256 _shares) external {
checkWithdrawRequest(_pid);
_withdraw(_pid, _shares);
}
function emergencyWithdraw(uint256 _pid) external {
checkWithdrawRequest(_pid);
_emergencyWithdraw(_pid);
}
function getPoolRewardsLevels(uint256 _pid) external view returns(uint256[] memory) {
return poolsRewards[_pid].rewardsLevels;
}
function getPoolRewards(uint256 _pid) external view returns(PoolReward memory) {
return poolsRewards[_pid];
}
function getRewardPerBlock(uint256 _pid1) external view returns (uint256) {
if (_pid1 == 0) {
return getRewardForBlocksRange(block.number-1, block.number, 1, 1);
} else {
return getRewardForBlocksRange(block.number-1,
block.number,
poolInfo[_pid1 - 1].allocPoint,
globalPoolUpdates[globalPoolUpdates.length-1].totalAllocPoint);
}
}
function pendingReward(uint256 _pid, address _user) external view returns (uint256) {
PoolInfo storage pool = poolInfo[_pid];
UserInfo storage user = userInfo[_pid][_user];
uint256 rewardPerShare = pool.rewardPerShare;
if (block.number > pool.lastRewardBlock && pool.totalUsersAmount > 0) {
uint256 reward = calcPoolReward(_pid, pool.lastRewardBlock, globalPoolUpdates.length-1);
rewardPerShare = rewardPerShare.add(reward.mul(1e12).div(pool.totalUsersAmount));
}
return user.amount.mul(rewardPerShare).div(1e12).sub(user.rewardDebt);
}
function getGlobalPoolUpdatesLength() external view returns (uint256) {
return globalPoolUpdates.length;
}
function getStakedAmount(uint _pid, address _user) external view returns (uint256) {
UserInfo storage user = userInfo[_pid][_user];
return user.amount;
}
function poolLength() external view returns (uint256) {
return poolInfo.length;
}
function calcClaimRewards(uint256 _pid, uint256 _severity)
public
view
returns(ClaimReward memory claimRewards) {
uint256 totalSupply = poolInfo[_pid].balance;
require(totalSupply > 0, "totalSupply is zero");
require(_severity < poolsRewards[_pid].rewardsLevels.length, "_severity is not in the range");
uint256 claimRewardAmount =
totalSupply.mul(poolsRewards[_pid].rewardsLevels[_severity]);
claimRewards.hackerVestedReward =
claimRewardAmount.mul(poolsRewards[_pid].rewardsSplit.hackerVestedReward)
.div(REWARDS_LEVEL_DENOMINATOR*REWARDS_LEVEL_DENOMINATOR);
claimRewards.hackerReward =
claimRewardAmount.mul(poolsRewards[_pid].rewardsSplit.hackerReward)
.div(REWARDS_LEVEL_DENOMINATOR*REWARDS_LEVEL_DENOMINATOR);
claimRewards.committeeReward =
claimRewardAmount.mul(poolsRewards[_pid].rewardsSplit.committeeReward)
.div(REWARDS_LEVEL_DENOMINATOR*REWARDS_LEVEL_DENOMINATOR);
claimRewards.swapAndBurn =
claimRewardAmount.mul(poolsRewards[_pid].rewardsSplit.swapAndBurn)
.div(REWARDS_LEVEL_DENOMINATOR*REWARDS_LEVEL_DENOMINATOR);
claimRewards.governanceHatReward =
claimRewardAmount.mul(poolsRewards[_pid].rewardsSplit.governanceHatReward)
.div(REWARDS_LEVEL_DENOMINATOR*REWARDS_LEVEL_DENOMINATOR);
claimRewards.hackerHatReward =
claimRewardAmount.mul(poolsRewards[_pid].rewardsSplit.hackerHatReward)
.div(REWARDS_LEVEL_DENOMINATOR*REWARDS_LEVEL_DENOMINATOR);
}
function getDefaultRewardsSplit() public pure returns (RewardsSplit memory) {
return RewardsSplit({
hackerVestedReward: 6000,
hackerReward: 2000,
committeeReward: 500,
swapAndBurn: 0,
governanceHatReward: 1000,
hackerHatReward: 500
});
}
function validateSplit(RewardsSplit memory _rewardsSplit) internal pure {
require(_rewardsSplit.hackerVestedReward
.add(_rewardsSplit.hackerReward)
.add(_rewardsSplit.committeeReward)
.add(_rewardsSplit.swapAndBurn)
.add(_rewardsSplit.governanceHatReward)
.add(_rewardsSplit.hackerHatReward) == REWARDS_LEVEL_DENOMINATOR,
"total split % should be 10000");
}
function checkWithdrawRequest(uint256 _pid) internal noPendingApproval(_pid) noSafetyPeriod {
require(block.timestamp > withdrawRequests[_pid][msg.sender] &&
block.timestamp < withdrawRequests[_pid][msg.sender] + generalParameters.withdrawRequestEnablePeriod,
"withdraw request not valid");
withdrawRequests[_pid][msg.sender] = 0;
}
function swapTokenForHAT(uint256 _amount,
IERC20 _token,
uint24[2] memory _fees,
uint256 _amountOutMinimum)
internal
returns (uint256 hatsReceived)
{
if (address(_token) == address(HAT)) {
return _amount;
}
require(_token.approve(address(uniSwapRouter), _amount), "token approve failed");
uint256 hatBalanceBefore = HAT.balanceOf(address(this));
address weth = uniSwapRouter.WETH9();
bytes memory path;
if (address(_token) == weth) {
path = abi.encodePacked(address(_token), _fees[0], address(HAT));
} else {
path = abi.encodePacked(address(_token), _fees[0], weth, _fees[1], address(HAT));
}
hatsReceived = uniSwapRouter.exactInput(ISwapRouter.ExactInputParams({
path: path,
recipient: address(this),
deadline: block.timestamp,
amountIn: _amount,
amountOutMinimum: _amountOutMinimum
}));
require(HAT.balanceOf(address(this)) - hatBalanceBefore >= _amountOutMinimum, "wrong amount received");
}
function checkRewardsLevels(uint256[] memory _rewardsLevels)
private
pure
returns (uint256[] memory rewardsLevels) {
uint256 i;
if (_rewardsLevels.length == 0) {
rewardsLevels = new uint256[](4);
for (i; i < 4; i++) {
rewardsLevels[i] = 2000*(i+1);
}
} else {
for (i; i < _rewardsLevels.length; i++) {
require(_rewardsLevels[i] < REWARDS_LEVEL_DENOMINATOR, "reward level can not be more than 10000");
}
rewardsLevels = _rewardsLevels;
}
}
}
文件 8 的 15：IERC20.sol
pragma solidity ^0.8.0;
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);
}
文件 9 的 15：IERC20Metadata.sol
pragma solidity ^0.8.0;
import "../IERC20.sol";
interface IERC20Metadata is IERC20 {
function name() external view returns (string memory);
function symbol() external view returns (string memory);
function decimals() external view returns (uint8);
}
文件 10 的 15：ISwapRouter.sol
pragma solidity 0.8.6;
interface ISwapRouter {
struct ExactInputSingleParams {
address tokenIn;
address tokenOut;
uint24 fee;
address recipient;
uint256 deadline;
uint256 amountIn;
uint256 amountOutMinimum;
uint160 sqrtPriceLimitX96;
}
function exactInputSingle(ExactInputSingleParams calldata params) external payable returns (uint256 amountOut);
struct ExactInputParams {
bytes path;
address recipient;
uint256 deadline;
uint256 amountIn;
uint256 amountOutMinimum;
}
function exactInput(ExactInputParams calldata params) external payable returns (uint256 amountOut);
struct ExactOutputSingleParams {
address tokenIn;
address tokenOut;
uint24 fee;
address recipient;
uint256 deadline;
uint256 amountOut;
uint256 amountInMaximum;
uint160 sqrtPriceLimitX96;
}
function exactOutputSingle(ExactOutputSingleParams calldata params) external payable returns (uint256 amountIn);
struct ExactOutputParams {
bytes path;
address recipient;
uint256 deadline;
uint256 amountOut;
uint256 amountInMaximum;
}
function exactOutput(ExactOutputParams calldata params) external payable returns (uint256 amountIn);
function WETH9() external pure returns (address);
}
文件 11 的 15：ITokenLock.sol
pragma solidity 0.8.6;
pragma experimental ABIEncoderV2;
import "openzeppelin-solidity/contracts/token/ERC20/IERC20.sol";
interface ITokenLock {
enum Revocability { NotSet, Enabled, Disabled }
function currentBalance() external view returns (uint256);
function currentTime() external view returns (uint256);
function duration() external view returns (uint256);
function sinceStartTime() external view returns (uint256);
function amountPerPeriod() external view returns (uint256);
function periodDuration() external view returns (uint256);
function currentPeriod() external view returns (uint256);
function passedPeriods() external view returns (uint256);
function availableAmount() external view returns (uint256);
function vestedAmount() external view returns (uint256);
function releasableAmount() external view returns (uint256);
function totalOutstandingAmount() external view returns (uint256);
function surplusAmount() external view returns (uint256);
function release() external;
function withdrawSurplus(uint256 _amount) external;
function revoke() external;
}
文件 12 的 15：ITokenLockFactory.sol
pragma solidity 0.8.6;
import "./ITokenLock.sol";
interface ITokenLockFactory {
function setMasterCopy(address _masterCopy) external;
function createTokenLock(
address _token,
address _owner,
address _beneficiary,
uint256 _managedAmount,
uint256 _startTime,
uint256 _endTime,
uint256 _periods,
uint256 _releaseStartTime,
uint256 _vestingCliffTime,
ITokenLock.Revocability _revocable,
bool _canDelegate
) external returns(address contractAddress);
}
文件 13 的 15：ReentrancyGuard.sol
pragma solidity ^0.8.0;
abstract contract ReentrancyGuard {
uint256 private constant _NOT_ENTERED = 1;
uint256 private constant _ENTERED = 2;
uint256 private _status;
constructor () {
_status = _NOT_ENTERED;
}
modifier nonReentrant() {
require(_status != _ENTERED, "ReentrancyGuard: reentrant call");
_status = _ENTERED;
_;
_status = _NOT_ENTERED;
}
}
文件 14 的 15：SafeERC20.sol
pragma solidity ^0.8.0;
import "../IERC20.sol";
import "../../../utils/Address.sol";
library SafeERC20 {
using Address for address;
function safeTransfer(IERC20 token, address to, uint256 value) internal {
_callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value));
}
function safeTransferFrom(IERC20 token, address from, address to, uint256 value) internal {
_callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value));
}
function safeApprove(IERC20 token, address spender, uint256 value) internal {
require((value == 0) || (token.allowance(address(this), spender) == 0),
"SafeERC20: approve from non-zero to non-zero allowance"
);
_callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value));
}
function safeIncreaseAllowance(IERC20 token, address spender, uint256 value) internal {
uint256 newAllowance = token.allowance(address(this), spender) + value;
_callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
}
function safeDecreaseAllowance(IERC20 token, address spender, uint256 value) internal {
unchecked {
uint256 oldAllowance = token.allowance(address(this), spender);
require(oldAllowance >= value, "SafeERC20: decreased allowance below zero");
uint256 newAllowance = oldAllowance - value;
_callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
}
}
function _callOptionalReturn(IERC20 token, bytes memory data) private {
bytes memory returndata = address(token).functionCall(data, "SafeERC20: low-level call failed");
if (returndata.length > 0) {
require(abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed");
}
}
}
文件 15 的 15：SafeMath.sol
pragma solidity ^0.8.0;
library SafeMath {
function tryAdd(uint256 a, uint256 b) internal pure returns (bool, uint256) {
unchecked {
uint256 c = a + b;
if (c < a) return (false, 0);
return (true, c);
}
}
function trySub(uint256 a, uint256 b) internal pure returns (bool, uint256) {
unchecked {
if (b > a) return (false, 0);
return (true, a - b);
}
}
function tryMul(uint256 a, uint256 b) internal pure returns (bool, uint256) {
unchecked {
if (a == 0) return (true, 0);
uint256 c = a * b;
if (c / a != b) return (false, 0);
return (true, c);
}
}
function tryDiv(uint256 a, uint256 b) internal pure returns (bool, uint256) {
unchecked {
if (b == 0) return (false, 0);
return (true, a / b);
}
}
function tryMod(uint256 a, uint256 b) internal pure returns (bool, uint256) {
unchecked {
if (b == 0) return (false, 0);
return (true, a % b);
}
}
function add(uint256 a, uint256 b) internal pure returns (uint256) {
return a + b;
}
function sub(uint256 a, uint256 b) internal pure returns (uint256) {
return a - b;
}
function mul(uint256 a, uint256 b) internal pure returns (uint256) {
return a * b;
}
function div(uint256 a, uint256 b) internal pure returns (uint256) {
return a / b;
}
function mod(uint256 a, uint256 b) internal pure returns (uint256) {
return a % b;
}
function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
unchecked {
require(b <= a, errorMessage);
return a - b;
}
}
function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
unchecked {
require(b > 0, errorMessage);
return a / b;
}
}
function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
unchecked {
require(b > 0, errorMessage);
return a % b;
}
}
}
{
"compilationTarget": {
"contracts/HATVaults.sol": "HATVaults"
},
"evmVersion": "berlin",
"libraries": {},
"metadata": {
"bytecodeHash": "ipfs"
},
"optimizer": {
"enabled": true,
"runs": 200
},
"remappings": []
}[{"inputs":[{"internalType":"address","name":"_rewardsToken","type":"address"},{"internalType":"uint256","name":"_rewardPerBlock","type":"uint256"},{"internalType":"uint256","name":"_startBlock","type":"uint256"},{"internalType":"uint256","name":"_multiplierPeriod","type":"uint256"},{"internalType":"address","name":"_hatGovernance","type":"address"},{"internalType":"contract ISwapRouter","name":"_uniSwapRouter","type":"address"},{"internalType":"contract ITokenLockFactory","name":"_tokenLockFactory","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint256","name":"_pid","type":"uint256"},{"indexed":true,"internalType":"uint256","name":"_allocPoint","type":"uint256"},{"indexed":true,"internalType":"address","name":"_lpToken","type":"address"},{"indexed":false,"internalType":"address","name":"_committee","type":"address"},{"indexed":false,"internalType":"string","name":"_descriptionHash","type":"string"},{"indexed":false,"internalType":"uint256[]","name":"_rewardsLevels","type":"uint256[]"},{"components":[{"internalType":"uint256","name":"hackerVestedReward","type":"uint256"},{"internalType":"uint256","name":"hackerReward","type":"uint256"},{"internalType":"uint256","name":"committeeReward","type":"uint256"},{"internalType":"uint256","name":"swapAndBurn","type":"uint256"},{"internalType":"uint256","name":"governanceHatReward","type":"uint256"},{"internalType":"uint256","name":"hackerHatReward","type":"uint256"}],"indexed":false,"internalType":"struct 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