// SPDX-License-Identifier: MIT
// File: contracts\Interfaces.sol
pragma solidity 0.6.12;
/**
* @dev Standard math utilities missing in the Solidity language.
*/
library MathUtil {
/**
* @dev Returns the smallest of two numbers.
*/
function min(uint256 a, uint256 b) internal pure returns (uint256) {
return a < b ? a : b;
}
}
contract ReentrancyGuard {
uint256 private _guardCounter;
constructor () internal {
_guardCounter = 1;
}
modifier nonReentrant() {
_guardCounter += 1;
uint256 localCounter = _guardCounter;
_;
require(localCounter == _guardCounter, "ReentrancyGuard: reentrant call");
}
}
interface ICurveGauge {
function deposit(uint256) external;
function balanceOf(address) external view returns (uint256);
function withdraw(uint256) external;
function claim_rewards() external;
function reward_tokens(uint256) external view returns(address);//v2
function rewarded_token() external view returns(address);//v1
}
interface ICurveVoteEscrow {
function create_lock(uint256, uint256) external;
function increase_amount(uint256) external;
function increase_unlock_time(uint256) external;
function withdraw() external;
function smart_wallet_checker() external view returns (address);
}
interface IWalletChecker {
function check(address) external view returns (bool);
}
interface IVoting{
function vote(uint256, bool, bool) external; //voteId, support, executeIfDecided
function getVote(uint256) external view returns(bool,bool,uint64,uint64,uint64,uint64,uint256,uint256,uint256,bytes memory);
function vote_for_gauge_weights(address,uint256) external;
}
interface IMinter{
function mint(address) external;
}
interface IRegistry{
function get_registry() external view returns(address);
function get_address(uint256 _id) external view returns(address);
function gauge_controller() external view returns(address);
function get_lp_token(address) external view returns(address);
function get_gauges(address) external view returns(address[10] memory,uint128[10] memory);
}
interface IStaker{
function deposit(address, address) external;
function withdraw(address) external;
function withdraw(address, address, uint256) external;
function withdrawAll(address, address) external;
function createLock(uint256, uint256) external;
function increaseAmount(uint256) external;
function increaseTime(uint256) external;
function release() external;
function claimCrv(address) external returns (uint256);
function claimRewards(address) external;
function claimFees(address,address) external;
function setStashAccess(address, bool) external;
function vote(uint256,address,bool) external;
function voteGaugeWeight(address,uint256) external;
function balanceOfPool(address) external view returns (uint256);
function operator() external view returns (address);
function execute(address _to, uint256 _value, bytes calldata _data) external returns (bool, bytes memory);
}
interface IRewards{
function stake(address, uint256) external;
function stakeFor(address, uint256) external;
function withdraw(address, uint256) external;
function exit(address) external;
function getReward(address) external;
function queueNewRewards(uint256) external;
function notifyRewardAmount(uint256) external;
function addExtraReward(address) external;
function stakingToken() external returns (address);
}
interface IStash{
function stashRewards() external returns (bool);
function processStash() external returns (bool);
function claimRewards() external returns (bool);
}
interface IFeeDistro{
function claim() external;
function token() external view returns(address);
}
interface ITokenMinter{
function mint(address,uint256) external;
function burn(address,uint256) external;
}
interface IDeposit{
function isShutdown() external view returns(bool);
function balanceOf(address _account) external view returns(uint256);
function totalSupply() external view returns(uint256);
function poolInfo(uint256) external view returns(address,address,address,address,address, bool);
function rewardClaimed(uint256,address,uint256) external;
function withdrawTo(uint256,uint256,address) external;
function claimRewards(uint256,address) external returns(bool);
function rewardArbitrator() external returns(address);
}
interface ICrvDeposit{
function deposit(uint256, bool) external;
function lockIncentive() external view returns(uint256);
}
interface IRewardFactory{
function setAccess(address,bool) external;
function CreateCrvRewards(uint256,address) external returns(address);
function CreateTokenRewards(address,address,address) external returns(address);
function activeRewardCount(address) external view returns(uint256);
function addActiveReward(address,uint256) external returns(bool);
function removeActiveReward(address,uint256) external returns(bool);
}
interface IStashFactory{
function CreateStash(uint256,address,address,uint256) external returns(address);
}
interface ITokenFactory{
function CreateDepositToken(address) external returns(address);
}
interface IPools{
function addPool(address _lptoken, address _gauge, uint256 _stashVersion) external returns(bool);
function shutdownPool(uint256 _pid) external returns(bool);
function poolInfo(uint256) external view returns(address,address,address,address,address,bool);
function poolLength() external view returns (uint256);
function gaugeMap(address) external view returns(bool);
function setPoolManager(address _poolM) external;
}
interface IVestedEscrow{
function fund(address[] calldata _recipient, uint256[] calldata _amount) external returns(bool);
}
// File: @openzeppelin\contracts\math\SafeMath.sol
pragma solidity >=0.6.0 <0.8.0;
/**
* @dev Wrappers over Solidity's arithmetic operations with added overflow
* checks.
*
* Arithmetic operations in Solidity wrap on overflow. This can easily result
* in bugs, because programmers usually assume that an overflow raises an
* error, which is the standard behavior in high level programming languages.
* `SafeMath` restores this intuition by reverting the transaction when an
* operation overflows.
*
* Using this library instead of the unchecked operations eliminates an entire
* class of bugs, so it's recommended to use it always.
*/
library SafeMath {
/**
* @dev Returns the addition of two unsigned integers, with an overflow flag.
*
* _Available since v3.4._
*/
function tryAdd(uint256 a, uint256 b) internal pure returns (bool, uint256) {
uint256 c = a + b;
if (c < a) return (false, 0);
return (true, c);
}
/**
* @dev Returns the substraction of two unsigned integers, with an overflow flag.
*
* _Available since v3.4._
*/
function trySub(uint256 a, uint256 b) internal pure returns (bool, uint256) {
if (b > a) return (false, 0);
return (true, a - b);
}
/**
* @dev Returns the multiplication of two unsigned integers, with an overflow flag.
*
* _Available since v3.4._
*/
function tryMul(uint256 a, uint256 b) internal pure returns (bool, uint256) {
// Gas optimization: this is cheaper than requiring 'a' not being zero, but the
// benefit is lost if 'b' is also tested.
// See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522
if (a == 0) return (true, 0);
uint256 c = a * b;
if (c / a != b) return (false, 0);
return (true, c);
}
/**
* @dev Returns the division of two unsigned integers, with a division by zero flag.
*
* _Available since v3.4._
*/
function tryDiv(uint256 a, uint256 b) internal pure returns (bool, uint256) {
if (b == 0) return (false, 0);
return (true, a / b);
}
/**
* @dev Returns the remainder of dividing two unsigned integers, with a division by zero flag.
*
* _Available since v3.4._
*/
function tryMod(uint256 a, uint256 b) internal pure returns (bool, uint256) {
if (b == 0) return (false, 0);
return (true, a % b);
}
/**
* @dev Returns the addition of two unsigned integers, reverting on
* overflow.
*
* Counterpart to Solidity's `+` operator.
*
* Requirements:
*
* - Addition cannot overflow.
*/
function add(uint256 a, uint256 b) internal pure returns (uint256) {
uint256 c = a + b;
require(c >= a, "SafeMath: addition overflow");
return c;
}
/**
* @dev Returns the subtraction of two unsigned integers, reverting on
* overflow (when the result is negative).
*
* Counterpart to Solidity's `-` operator.
*
* Requirements:
*
* - Subtraction cannot overflow.
*/
function sub(uint256 a, uint256 b) internal pure returns (uint256) {
require(b <= a, "SafeMath: subtraction overflow");
return a - b;
}
/**
* @dev Returns the multiplication of two unsigned integers, reverting on
* overflow.
*
* Counterpart to Solidity's `*` operator.
*
* Requirements:
*
* - Multiplication cannot overflow.
*/
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;
}
/**
* @dev Returns the integer division of two unsigned integers, reverting on
* division by zero. The result is rounded towards zero.
*
* Counterpart to Solidity's `/` operator. Note: this function uses a
* `revert` opcode (which leaves remaining gas untouched) while Solidity
* uses an invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
*
* - The divisor cannot be zero.
*/
function div(uint256 a, uint256 b) internal pure returns (uint256) {
require(b > 0, "SafeMath: division by zero");
return a / b;
}
/**
* @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
* reverting when dividing by zero.
*
* Counterpart to Solidity's `%` operator. This function uses a `revert`
* opcode (which leaves remaining gas untouched) while Solidity uses an
* invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
*
* - The divisor cannot be zero.
*/
function mod(uint256 a, uint256 b) internal pure returns (uint256) {
require(b > 0, "SafeMath: modulo by zero");
return a % b;
}
/**
* @dev Returns the subtraction of two unsigned integers, reverting with custom message on
* overflow (when the result is negative).
*
* CAUTION: This function is deprecated because it requires allocating memory for the error
* message unnecessarily. For custom revert reasons use {trySub}.
*
* Counterpart to Solidity's `-` operator.
*
* Requirements:
*
* - Subtraction cannot overflow.
*/
function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b <= a, errorMessage);
return a - b;
}
/**
* @dev Returns the integer division of two unsigned integers, reverting with custom message on
* division by zero. The result is rounded towards zero.
*
* CAUTION: This function is deprecated because it requires allocating memory for the error
* message unnecessarily. For custom revert reasons use {tryDiv}.
*
* Counterpart to Solidity's `/` operator. Note: this function uses a
* `revert` opcode (which leaves remaining gas untouched) while Solidity
* uses an invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
*
* - The divisor cannot be zero.
*/
function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b > 0, errorMessage);
return a / b;
}
/**
* @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
* reverting with custom message when dividing by zero.
*
* CAUTION: This function is deprecated because it requires allocating memory for the error
* message unnecessarily. For custom revert reasons use {tryMod}.
*
* Counterpart to Solidity's `%` operator. This function uses a `revert`
* opcode (which leaves remaining gas untouched) while Solidity uses an
* invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
*
* - The divisor cannot be zero.
*/
function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b > 0, errorMessage);
return a % b;
}
}
// File: @openzeppelin\contracts\token\ERC20\IERC20.sol
pragma solidity >=0.6.0 <0.8.0;
/**
* @dev Interface of the ERC20 standard as defined in the EIP.
*/
interface IERC20 {
/**
* @dev Returns the amount of tokens in existence.
*/
function totalSupply() external view returns (uint256);
/**
* @dev Returns the amount of tokens owned by `account`.
*/
function balanceOf(address account) external view returns (uint256);
/**
* @dev Moves `amount` tokens from the caller's account to `recipient`.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transfer(address recipient, uint256 amount) external returns (bool);
/**
* @dev Returns the remaining number of tokens that `spender` will be
* allowed to spend on behalf of `owner` through {transferFrom}. This is
* zero by default.
*
* This value changes when {approve} or {transferFrom} are called.
*/
function allowance(address owner, address spender) external view returns (uint256);
/**
* @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* IMPORTANT: Beware that changing an allowance with this method brings the risk
* that someone may use both the old and the new allowance by unfortunate
* transaction ordering. One possible solution to mitigate this race
* condition is to first reduce the spender's allowance to 0 and set the
* desired value afterwards:
* https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
*
* Emits an {Approval} event.
*/
function approve(address spender, uint256 amount) external returns (bool);
/**
* @dev Moves `amount` tokens from `sender` to `recipient` using the
* allowance mechanism. `amount` is then deducted from the caller's
* allowance.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);
/**
* @dev Emitted when `value` tokens are moved from one account (`from`) to
* another (`to`).
*
* Note that `value` may be zero.
*/
event Transfer(address indexed from, address indexed to, uint256 value);
/**
* @dev Emitted when the allowance of a `spender` for an `owner` is set by
* a call to {approve}. `value` is the new allowance.
*/
event Approval(address indexed owner, address indexed spender, uint256 value);
}
// File: @openzeppelin\contracts\utils\Address.sol
pragma solidity >=0.6.2 <0.8.0;
/**
* @dev Collection of functions related to the address type
*/
library Address {
/**
* @dev Returns true if `account` is a contract.
*
* [IMPORTANT]
* ====
* It is unsafe to assume that an address for which this function returns
* false is an externally-owned account (EOA) and not a contract.
*
* Among others, `isContract` will return false for the following
* types of addresses:
*
* - an externally-owned account
* - a contract in construction
* - an address where a contract will be created
* - an address where a contract lived, but was destroyed
* ====
*/
function isContract(address account) internal view returns (bool) {
// This method relies on extcodesize, which returns 0 for contracts in
// construction, since the code is only stored at the end of the
// constructor execution.
uint256 size;
// solhint-disable-next-line no-inline-assembly
assembly { size := extcodesize(account) }
return size > 0;
}
/**
* @dev Replacement for Solidity's `transfer`: sends `amount` wei to
* `recipient`, forwarding all available gas and reverting on errors.
*
* https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
* of certain opcodes, possibly making contracts go over the 2300 gas limit
* imposed by `transfer`, making them unable to receive funds via
* `transfer`. {sendValue} removes this limitation.
*
* https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
*
* IMPORTANT: because control is transferred to `recipient`, care must be
* taken to not create reentrancy vulnerabilities. Consider using
* {ReentrancyGuard} or the
* https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
*/
function sendValue(address payable recipient, uint256 amount) internal {
require(address(this).balance >= amount, "Address: insufficient balance");
// solhint-disable-next-line avoid-low-level-calls, avoid-call-value
(bool success, ) = recipient.call{ value: amount }("");
require(success, "Address: unable to send value, recipient may have reverted");
}
/**
* @dev Performs a Solidity function call using a low level `call`. A
* plain`call` is an unsafe replacement for a function call: use this
* function instead.
*
* If `target` reverts with a revert reason, it is bubbled up by this
* function (like regular Solidity function calls).
*
* Returns the raw returned data. To convert to the expected return value,
* use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
*
* Requirements:
*
* - `target` must be a contract.
* - calling `target` with `data` must not revert.
*
* _Available since v3.1._
*/
function functionCall(address target, bytes memory data) internal returns (bytes memory) {
return functionCall(target, data, "Address: low-level call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
* `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) {
return functionCallWithValue(target, data, 0, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but also transferring `value` wei to `target`.
*
* Requirements:
*
* - the calling contract must have an ETH balance of at least `value`.
* - the called Solidity function must be `payable`.
*
* _Available since v3.1._
*/
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");
}
/**
* @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
* with `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
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");
// solhint-disable-next-line avoid-low-level-calls
(bool success, bytes memory returndata) = target.call{ value: value }(data);
return _verifyCallResult(success, returndata, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but performing a static call.
*
* _Available since v3.3._
*/
function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
return functionStaticCall(target, data, "Address: low-level static call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
* but performing a static call.
*
* _Available since v3.3._
*/
function functionStaticCall(address target, bytes memory data, string memory errorMessage) internal view returns (bytes memory) {
require(isContract(target), "Address: static call to non-contract");
// solhint-disable-next-line avoid-low-level-calls
(bool success, bytes memory returndata) = target.staticcall(data);
return _verifyCallResult(success, returndata, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but performing a delegate call.
*
* _Available since v3.4._
*/
function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
return functionDelegateCall(target, data, "Address: low-level delegate call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
* but performing a delegate call.
*
* _Available since v3.4._
*/
function functionDelegateCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) {
require(isContract(target), "Address: delegate call to non-contract");
// solhint-disable-next-line avoid-low-level-calls
(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 {
// Look for revert reason and bubble it up if present
if (returndata.length > 0) {
// The easiest way to bubble the revert reason is using memory via assembly
// solhint-disable-next-line no-inline-assembly
assembly {
let returndata_size := mload(returndata)
revert(add(32, returndata), returndata_size)
}
} else {
revert(errorMessage);
}
}
}
}
// File: @openzeppelin\contracts\token\ERC20\SafeERC20.sol
pragma solidity >=0.6.0 <0.8.0;
/**
* @title SafeERC20
* @dev Wrappers around ERC20 operations that throw on failure (when the token
* contract returns false). Tokens that return no value (and instead revert or
* throw on failure) are also supported, non-reverting calls are assumed to be
* successful.
* To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract,
* which allows you to call the safe operations as `token.safeTransfer(...)`, etc.
*/
library SafeERC20 {
using SafeMath for uint256;
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));
}
/**
* @dev Deprecated. This function has issues similar to the ones found in
* {IERC20-approve}, and its usage is discouraged.
*
* Whenever possible, use {safeIncreaseAllowance} and
* {safeDecreaseAllowance} instead.
*/
function safeApprove(IERC20 token, address spender, uint256 value) internal {
// safeApprove should only be called when setting an initial allowance,
// or when resetting it to zero. To increase and decrease it, use
// 'safeIncreaseAllowance' and 'safeDecreaseAllowance'
// solhint-disable-next-line max-line-length
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).add(value);
_callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
}
function safeDecreaseAllowance(IERC20 token, address spender, uint256 value) internal {
uint256 newAllowance = token.allowance(address(this), spender).sub(value, "SafeERC20: decreased allowance below zero");
_callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
}
/**
* @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement
* on the return value: the return value is optional (but if data is returned, it must not be false).
* @param token The token targeted by the call.
* @param data The call data (encoded using abi.encode or one of its variants).
*/
function _callOptionalReturn(IERC20 token, bytes memory data) private {
// We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since
// we're implementing it ourselves. We use {Address.functionCall} to perform this call, which verifies that
// the target address contains contract code and also asserts for success in the low-level call.
bytes memory returndata = address(token).functionCall(data, "SafeERC20: low-level call failed");
if (returndata.length > 0) { // Return data is optional
// solhint-disable-next-line max-line-length
require(abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed");
}
}
}
// File: contracts\Booster.sol
pragma solidity 0.6.12;
contract Booster{
using SafeERC20 for IERC20;
using Address for address;
using SafeMath for uint256;
address public constant crv = address(0xD533a949740bb3306d119CC777fa900bA034cd52);
address public constant registry = address(0x0000000022D53366457F9d5E68Ec105046FC4383);
uint256 public constant distributionAddressId = 4;
address public constant voteOwnership = address(0xE478de485ad2fe566d49342Cbd03E49ed7DB3356);
address public constant voteParameter = address(0xBCfF8B0b9419b9A88c44546519b1e909cF330399);
uint256 public lockIncentive = 1000; //incentive to crv stakers
uint256 public stakerIncentive = 450; //incentive to native token stakers
uint256 public earmarkIncentive = 50; //incentive to users who spend gas to make calls
uint256 public platformFee = 0; //possible fee to build treasury
uint256 public constant MaxFees = 2000;
uint256 public constant FEE_DENOMINATOR = 10000;
address public owner;
address public feeManager;
address public poolManager;
address public immutable staker;
address public immutable minter;
address public rewardFactory;
address public stashFactory;
address public tokenFactory;
address public rewardArbitrator;
address public voteDelegate;
address public treasury;
address public stakerRewards; //cvx rewards
address public lockRewards; //cvxCrv rewards(crv)
address public lockFees; //cvxCrv vecrv fees
address public feeDistro;
address public feeToken;
bool public isShutdown;
struct PoolInfo {
address lptoken;
address token;
address gauge;
address crvRewards;
address stash;
bool shutdown;
}
//index(pid) -> pool
PoolInfo[] public poolInfo;
mapping(address => bool) public gaugeMap;
event Deposited(address indexed user, uint256 indexed poolid, uint256 amount);
event Withdrawn(address indexed user, uint256 indexed poolid, uint256 amount);
constructor(address _staker, address _minter) public {
isShutdown = false;
staker = _staker;
owner = msg.sender;
voteDelegate = msg.sender;
feeManager = msg.sender;
poolManager = msg.sender;
feeDistro = address(0); //address(0xA464e6DCda8AC41e03616F95f4BC98a13b8922Dc);
feeToken = address(0); //address(0x6c3F90f043a72FA612cbac8115EE7e52BDe6E490);
treasury = address(0);
minter = _minter;
}
/// SETTER SECTION ///
function setOwner(address _owner) external {
require(msg.sender == owner, "!auth");
owner = _owner;
}
function setFeeManager(address _feeM) external {
require(msg.sender == feeManager, "!auth");
feeManager = _feeM;
}
function setPoolManager(address _poolM) external {
require(msg.sender == poolManager, "!auth");
poolManager = _poolM;
}
function setFactories(address _rfactory, address _sfactory, address _tfactory) external {
require(msg.sender == owner, "!auth");
//reward factory only allow this to be called once even if owner
//removes ability to inject malicious staking contracts
//token factory can also be immutable
if(rewardFactory == address(0)){
rewardFactory = _rfactory;
tokenFactory = _tfactory;
}
//stash factory should be considered more safe to change
//updating may be required to handle new types of gauges
stashFactory = _sfactory;
}
function setArbitrator(address _arb) external {
require(msg.sender==owner, "!auth");
rewardArbitrator = _arb;
}
function setVoteDelegate(address _voteDelegate) external {
require(msg.sender==voteDelegate, "!auth");
voteDelegate = _voteDelegate;
}
function setRewardContracts(address _rewards, address _stakerRewards) external {
require(msg.sender == owner, "!auth");
//reward contracts are immutable or else the owner
//has a means to redeploy and mint cvx via rewardClaimed()
if(lockRewards == address(0)){
lockRewards = _rewards;
stakerRewards = _stakerRewards;
}
}
// Set reward token and claim contract, get from Curve's registry
function setFeeInfo() external {
require(msg.sender==feeManager, "!auth");
feeDistro = IRegistry(registry).get_address(distributionAddressId);
address _feeToken = IFeeDistro(feeDistro).token();
if(feeToken != _feeToken){
//create a new reward contract for the new token
lockFees = IRewardFactory(rewardFactory).CreateTokenRewards(_feeToken,lockRewards,address(this));
feeToken = _feeToken;
}
}
function setFees(uint256 _lockFees, uint256 _stakerFees, uint256 _callerFees, uint256 _platform) external{
require(msg.sender==feeManager, "!auth");
uint256 total = _lockFees.add(_stakerFees).add(_callerFees).add(_platform);
require(total <= MaxFees, ">MaxFees");
//values must be within certain ranges
if(_lockFees >= 1000 && _lockFees <= 1500
&& _stakerFees >= 300 && _stakerFees <= 600
&& _callerFees >= 10 && _callerFees <= 100
&& _platform <= 200){
lockIncentive = _lockFees;
stakerIncentive = _stakerFees;
earmarkIncentive = _callerFees;
platformFee = _platform;
}
}
function setTreasury(address _treasury) external {
require(msg.sender==feeManager, "!auth");
treasury = _treasury;
}
/// END SETTER SECTION ///
function poolLength() external view returns (uint256) {
return poolInfo.length;
}
//create a new pool
function addPool(address _lptoken, address _gauge, uint256 _stashVersion) external returns(bool){
require(msg.sender==poolManager && !isShutdown, "!add");
require(_gauge != address(0) && _lptoken != address(0),"!param");
//the next pool's pid
uint256 pid = poolInfo.length;
//create a tokenized deposit
address token = ITokenFactory(tokenFactory).CreateDepositToken(_lptoken);
//create a reward contract for crv rewards
address newRewardPool = IRewardFactory(rewardFactory).CreateCrvRewards(pid,token);
//create a stash to handle extra incentives
address stash = IStashFactory(stashFactory).CreateStash(pid,_gauge,staker,_stashVersion);
//add the new pool
poolInfo.push(
PoolInfo({
lptoken: _lptoken,
token: token,
gauge: _gauge,
crvRewards: newRewardPool,
stash: stash,
shutdown: false
})
);
gaugeMap[_gauge] = true;
//give stashes access to rewardfactory and voteproxy
// voteproxy so it can grab the incentive tokens off the contract after claiming rewards
// reward factory so that stashes can make new extra reward contracts if a new incentive is added to the gauge
if(stash != address(0)){
poolInfo[pid].stash = stash;
IStaker(staker).setStashAccess(stash,true);
IRewardFactory(rewardFactory).setAccess(stash,true);
}
return true;
}
//shutdown pool
function shutdownPool(uint256 _pid) external returns(bool){
require(msg.sender==poolManager, "!auth");
PoolInfo storage pool = poolInfo[_pid];
//withdraw from gauge
try IStaker(staker).withdrawAll(pool.lptoken,pool.gauge){
}catch{}
pool.shutdown = true;
gaugeMap[pool.gauge] = false;
return true;
}
//shutdown this contract.
// unstake and pull all lp tokens to this address
// only allow withdrawals
function shutdownSystem() external{
require(msg.sender == owner, "!auth");
isShutdown = true;
for(uint i=0; i < poolInfo.length; i++){
PoolInfo storage pool = poolInfo[i];
if (pool.shutdown) continue;
address token = pool.lptoken;
address gauge = pool.gauge;
//withdraw from gauge
try IStaker(staker).withdrawAll(token,gauge){
pool.shutdown = true;
}catch{}
}
}
//deposit lp tokens and stake
function deposit(uint256 _pid, uint256 _amount, bool _stake) public returns(bool){
require(!isShutdown,"shutdown");
PoolInfo storage pool = poolInfo[_pid];
require(pool.shutdown == false, "pool is closed");
//send to proxy to stake
address lptoken = pool.lptoken;
IERC20(lptoken).safeTransferFrom(msg.sender, staker, _amount);
//stake
address gauge = pool.gauge;
require(gauge != address(0),"!gauge setting");
IStaker(staker).deposit(lptoken,gauge);
//some gauges claim rewards when depositing, stash them in a seperate contract until next claim
address stash = pool.stash;
if(stash != address(0)){
IStash(stash).stashRewards();
}
address token = pool.token;
if(_stake){
//mint here and send to rewards on user behalf
ITokenMinter(token).mint(address(this),_amount);
address rewardContract = pool.crvRewards;
IERC20(token).safeApprove(rewardContract,0);
IERC20(token).safeApprove(rewardContract,_amount);
IRewards(rewardContract).stakeFor(msg.sender,_amount);
}else{
//add user balance directly
ITokenMinter(token).mint(msg.sender,_amount);
}
emit Deposited(msg.sender, _pid, _amount);
return true;
}
//deposit all lp tokens and stake
function depositAll(uint256 _pid, bool _stake) external returns(bool){
address lptoken = poolInfo[_pid].lptoken;
uint256 balance = IERC20(lptoken).balanceOf(msg.sender);
deposit(_pid,balance,_stake);
return true;
}
//withdraw lp tokens
function _withdraw(uint256 _pid, uint256 _amount, address _from, address _to) internal {
PoolInfo storage pool = poolInfo[_pid];
address lptoken = pool.lptoken;
address gauge = pool.gauge;
//remove lp balance
address token = pool.token;
ITokenMinter(token).burn(_from,_amount);
//pull from gauge if not shutdown
// if shutdown tokens will be in this contract
if (!pool.shutdown) {
IStaker(staker).withdraw(lptoken,gauge, _amount);
}
//some gauges claim rewards when withdrawing, stash them in a seperate contract until next claim
//do not call if shutdown since stashes wont have access
address stash = pool.stash;
if(stash != address(0) && !isShutdown && !pool.shutdown){
IStash(stash).stashRewards();
}
//return lp tokens
IERC20(lptoken).safeTransfer(_to, _amount);
emit Withdrawn(_to, _pid, _amount);
}
//withdraw lp tokens
function withdraw(uint256 _pid, uint256 _amount) public returns(bool){
_withdraw(_pid,_amount,msg.sender,msg.sender);
return true;
}
//withdraw all lp tokens
function withdrawAll(uint256 _pid) public returns(bool){
address token = poolInfo[_pid].token;
uint256 userBal = IERC20(token).balanceOf(msg.sender);
withdraw(_pid, userBal);
return true;
}
//allow reward contracts to send here and withdraw to user
function withdrawTo(uint256 _pid, uint256 _amount, address _to) external returns(bool){
address rewardContract = poolInfo[_pid].crvRewards;
require(msg.sender == rewardContract,"!auth");
_withdraw(_pid,_amount,msg.sender,_to);
return true;
}
//delegate address votes on dao
function vote(uint256 _voteId, address _votingAddress, bool _support) external returns(bool){
require(msg.sender == voteDelegate, "!auth");
require(_votingAddress == voteOwnership || _votingAddress == voteParameter, "!voteAddr");
IStaker(staker).vote(_voteId,_votingAddress,_support);
return true;
}
function voteGaugeWeight(address[] calldata _gauge, uint256[] calldata _weight ) external returns(bool){
require(msg.sender == voteDelegate, "!auth");
for(uint256 i = 0; i < _gauge.length; i++){
IStaker(staker).voteGaugeWeight(_gauge[i],_weight[i]);
}
return true;
}
function claimRewards(uint256 _pid, address _gauge) external returns(bool){
address stash = poolInfo[_pid].stash;
require(msg.sender == stash,"!auth");
IStaker(staker).claimRewards(_gauge);
return true;
}
function setGaugeRedirect(uint256 _pid) external returns(bool){
address stash = poolInfo[_pid].stash;
require(msg.sender == stash,"!auth");
address gauge = poolInfo[_pid].gauge;
bytes memory data = abi.encodeWithSelector(bytes4(keccak256("set_rewards_receiver(address)")), stash);
IStaker(staker).execute(gauge,uint256(0),data);
return true;
}
//claim crv and extra rewards and disperse to reward contracts
function _earmarkRewards(uint256 _pid) internal {
PoolInfo storage pool = poolInfo[_pid];
require(pool.shutdown == false, "pool is closed");
address gauge = pool.gauge;
//claim crv
IStaker(staker).claimCrv(gauge);
//check if there are extra rewards
address stash = pool.stash;
if(stash != address(0)){
//claim extra rewards
IStash(stash).claimRewards();
//process extra rewards
IStash(stash).processStash();
}
//crv balance
uint256 crvBal = IERC20(crv).balanceOf(address(this));
if (crvBal > 0) {
uint256 _lockIncentive = crvBal.mul(lockIncentive).div(FEE_DENOMINATOR);
uint256 _stakerIncentive = crvBal.mul(stakerIncentive).div(FEE_DENOMINATOR);
uint256 _callIncentive = crvBal.mul(earmarkIncentive).div(FEE_DENOMINATOR);
//send treasury
if(treasury != address(0) && treasury != address(this) && platformFee > 0){
//only subtract after address condition check
uint256 _platform = crvBal.mul(platformFee).div(FEE_DENOMINATOR);
crvBal = crvBal.sub(_platform);
IERC20(crv).safeTransfer(treasury, _platform);
}
//remove incentives from balance
crvBal = crvBal.sub(_lockIncentive).sub(_callIncentive).sub(_stakerIncentive);
//send incentives for calling
IERC20(crv).safeTransfer(msg.sender, _callIncentive);
//send crv to lp provider reward contract
address rewardContract = pool.crvRewards;
IERC20(crv).safeTransfer(rewardContract, crvBal);
IRewards(rewardContract).queueNewRewards(crvBal);
//send lockers' share of crv to reward contract
IERC20(crv).safeTransfer(lockRewards, _lockIncentive);
IRewards(lockRewards).queueNewRewards(_lockIncentive);
//send stakers's share of crv to reward contract
IERC20(crv).safeTransfer(stakerRewards, _stakerIncentive);
IRewards(stakerRewards).queueNewRewards(_stakerIncentive);
}
}
function earmarkRewards(uint256 _pid) external returns(bool){
require(!isShutdown,"shutdown");
_earmarkRewards(_pid);
return true;
}
//claim fees from curve distro contract, put in lockers' reward contract
function earmarkFees() external returns(bool){
//claim fee rewards
IStaker(staker).claimFees(feeDistro, feeToken);
//send fee rewards to reward contract
uint256 _balance = IERC20(feeToken).balanceOf(address(this));
IERC20(feeToken).safeTransfer(lockFees, _balance);
IRewards(lockFees).queueNewRewards(_balance);
return true;
}
//callback from reward contract when crv is received.
function rewardClaimed(uint256 _pid, address _address, uint256 _amount) external returns(bool){
address rewardContract = poolInfo[_pid].crvRewards;
require(msg.sender == rewardContract || msg.sender == lockRewards, "!auth");
//mint reward tokens
ITokenMinter(minter).mint(_address,_amount);
return true;
}
}
{
"compilationTarget": {
"Booster.sol": "Booster"
},
"evmVersion": "istanbul",
"libraries": {},
"metadata": {
"bytecodeHash": "ipfs"
},
"optimizer": {
"enabled": true,
"runs": 200
},
"remappings": []
}
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