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Latest 25 from a total of 458 transactions
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Decrease Stake | 11792747 | 1283 days ago | IN | 0 ETH | 0.00652364 | ||||
Claim Rewards | 11792722 | 1283 days ago | IN | 0 ETH | 0.01348449 | ||||
Claim Rewards | 11782703 | 1284 days ago | IN | 0 ETH | 0.01167488 | ||||
Claim Rewards | 11772414 | 1286 days ago | IN | 0 ETH | 0.0179678 | ||||
Claim Rewards | 11755815 | 1288 days ago | IN | 0 ETH | 0.00458178 | ||||
Increase Stake | 11749694 | 1289 days ago | IN | 0 ETH | 0.00694142 | ||||
Claim Rewards | 11749679 | 1289 days ago | IN | 0 ETH | 0.00763357 | ||||
Increase Stake | 11728038 | 1293 days ago | IN | 0 ETH | 0.00542848 | ||||
Claim Rewards | 11726032 | 1293 days ago | IN | 0 ETH | 0.0074839 | ||||
Decrease Stake | 11722991 | 1293 days ago | IN | 0 ETH | 0.0027702 | ||||
Claim Rewards | 11722985 | 1293 days ago | IN | 0 ETH | 0.0053884 | ||||
Decrease Stake | 11720965 | 1294 days ago | IN | 0 ETH | 0.00280836 | ||||
Claim Rewards | 11720964 | 1294 days ago | IN | 0 ETH | 0.00531356 | ||||
Decrease Stake | 11718289 | 1294 days ago | IN | 0 ETH | 0.00195145 | ||||
Claim Rewards | 11718285 | 1294 days ago | IN | 0 ETH | 0.00374195 | ||||
Claim Rewards | 11714590 | 1295 days ago | IN | 0 ETH | 0.00583953 | ||||
Claim Rewards | 11712157 | 1295 days ago | IN | 0 ETH | 0.00366711 | ||||
Increase Stake | 11701060 | 1297 days ago | IN | 0 ETH | 0.00384804 | ||||
Claim Rewards | 11701036 | 1297 days ago | IN | 0 ETH | 0.00419098 | ||||
Decrease Stake | 11690355 | 1298 days ago | IN | 0 ETH | 0.00148219 | ||||
Claim Rewards | 11690352 | 1298 days ago | IN | 0 ETH | 0.00284388 | ||||
Claim Rewards | 11690334 | 1298 days ago | IN | 0 ETH | 0.00359356 | ||||
Increase Stake | 11680487 | 1300 days ago | IN | 0 ETH | 0.00355256 | ||||
Claim Rewards | 11680472 | 1300 days ago | IN | 0 ETH | 0.00389162 | ||||
Increase Stake | 11679594 | 1300 days ago | IN | 0 ETH | 0.00289455 |
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Contract Name:
ApeStakingPool
Compiler Version
v0.6.12+commit.27d51765
Optimization Enabled:
Yes with 200 runs
Other Settings:
byzantium EvmVersion
Contract Source Code (Solidity Standard Json-Input format)
// SPDX-License-Identifier: MIT pragma solidity ^0.6.12; import "@openzeppelin/contracts/math/SafeMath.sol"; import "@openzeppelin/contracts/utils/ReentrancyGuard.sol"; import "@openzeppelin/contracts/access/Ownable.sol"; import "./ApeToken.sol"; contract ApeStakingPool is ReentrancyGuard, Ownable { using SafeMath for uint256; uint256 private constant UINT256_MAX = ~uint256(0); uint256 private constant MONTH = 30 days; ApeToken private _apeTokenInstnace; address private _apeTokenAddress; uint256 private _deployedAt; uint256 public _totalStaked; mapping(address => uint256) private _staked; mapping(address => uint256) private _lastClaim; address private _developerFund; event StakeIncreased(address indexed staker, uint256 amount); event StakeDecreased(address indexed staker, uint256 amount); event Rewards( address indexed staker, uint256 mintage, uint256 developerFund ); constructor() public { _developerFund = msg.sender; _deployedAt = block.timestamp; } function setApeToken(address apeTokenAddress) external onlyOwner { require(_apeTokenAddress == address(0)); _apeTokenAddress = apeTokenAddress; _apeTokenInstnace = ApeToken(apeTokenAddress); } function upgradeDevelopmentFund(address fund) external onlyOwner { _developerFund = fund; } function ape() external view returns (address) { return address(_apeTokenInstnace); } function totalStaked() external view returns (uint256) { return _totalStaked; } function staked(address staker) external view returns (uint256) { return _staked[staker]; } function lastClaim(address staker) external view returns (uint256) { return _lastClaim[staker]; } function increaseStake(uint256 amount) external { require(_apeTokenInstnace.transferFrom(msg.sender, address(this), amount)); _totalStaked = _totalStaked.add(amount); _lastClaim[msg.sender] = block.timestamp; _staked[msg.sender] = _staked[msg.sender].add(amount); emit StakeIncreased(msg.sender, amount); } function decreaseStake(uint256 amount) external { _staked[msg.sender] = _staked[msg.sender].sub(amount); _totalStaked = _totalStaked.sub(amount); require(_apeTokenInstnace.transfer(address(msg.sender), amount)); emit StakeDecreased(msg.sender, amount); } function _calculateMintage(address staker) private view returns (uint256) { uint256 stakedAmount = _staked[staker]; uint256 timeElapsed = block.timestamp.sub(_lastClaim[staker]); uint256 mintage = 0; if (timeElapsed > 60) { uint256 minutesElapsed = timeElapsed.div(60); mintage = stakedAmount.mul(minutesElapsed).mul(20).div(15).div(30*24*60); } return mintage; } function calculateRewards(address staker) public view returns (uint256) { return _calculateMintage(staker).div(20).mul(19); } function claimRewards() external nonReentrant { uint256 mintage = _calculateMintage(msg.sender); uint256 mintagePiece = mintage.div(20); require(mintagePiece > 0, "You are not entitled to any rewards!"); _lastClaim[msg.sender] = block.timestamp; _apeTokenInstnace.mint(msg.sender, mintage.sub(mintagePiece)); _apeTokenInstnace.mint(_developerFund, mintagePiece); emit Rewards(msg.sender, mintage, mintagePiece); } }
// SPDX-License-Identifier: MIT pragma solidity ^0.6.12; import "./lib/ERC20Presaleable.sol"; import "./lib/ERC20Vestable.sol"; import "./lib/ERC20Burnable.sol"; import "@uniswap/v2-periphery/contracts/interfaces/IUniswapV2Router02.sol"; import "@openzeppelin/contracts/token/ERC20/IERC20.sol"; contract ApeToken is ERC20Burnable, ERC20Vestable, ERC20Presaleable { IUniswapV2Router02 private router; uint256 public constant MAX_INT = uint256(-1); uint256 public stakingPoolDateAdd; address public stakingPoolPending; address public constant UNISWAP_ROUTER_ADDRESS = 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D; event LiquidityAdded( uint256 amountToken, uint256 amountEth, uint256 liquidity ); event DeveloperAddedPendingPool(address pendingPool); event DeveloperAddedPool(address pool); constructor( address payable secondDeveloper, address[] memory stakingPools, address marketing, uint256 presaleCap, address[] memory supporters, uint256[] memory supporterRewards ) public ERC20("Ape.cash V2", "APEv2") RoleAware(msg.sender, stakingPools) ERC20Presaleable(presaleCap) { // number of tokens is vested over 3 months, see ERC20Vestable _addBeneficiary(msg.sender, 105000, 10 days, true); _addBeneficiary(secondDeveloper, 45000, 10 days, true); _addBeneficiary(marketing, 50000, 10 days, true); router = IUniswapV2Router02(UNISWAP_ROUTER_ADDRESS); for (uint256 index = 0; index < supporters.length; index++) { _mint(supporters[index], supporterRewards[index]); } } // developer can add staking pools. as these can mint, function is timelocked for 24 hours function addStakingPoolConfirm() public onlyDeveloper { require(now >= stakingPoolDateAdd.add(24 hours)); grantRole(STAKING_POOL_ROLE, stakingPoolPending); grantRole(WHITELIST_ROLE, stakingPoolPending); emit DeveloperAddedPool(stakingPoolPending); } function addStakingPoolInitial(address stakingPool) public onlyDeveloper { stakingPoolDateAdd = now; stakingPoolPending = stakingPool; emit DeveloperAddedPendingPool(stakingPool); } // allow contracts with role ape staking pool to mint rewards for users function mint(address to, uint256 amount) public onlyStakingPool nonReentrant { if (totalSupply() <= maximumSupply) { _mint(to, amount); } } function listOnUniswap() public onlyDeveloper { // mint 1800 APE per held ETH to list on Uniswap setTradeable(); timeListed = now; addWhitelist(UNISWAP_ROUTER_ADDRESS); addWhitelist(uniswapEthPair); uint256 ethBalance = address(this).balance; uint256 apeBalance = ethBalance.mul(uniswapApePerEth); _mint(address(this), apeBalance); _approve(address(this), address(router), apeBalance); (uint256 amountToken, uint256 amountEth, uint256 liquidity) = router .addLiquidityETH{value: ethBalance}( address(this), apeBalance, apeBalance, ethBalance, address(0), block.timestamp + uint256(5).mul(1 minutes) ); revokeRole(WHITELIST_ROLE, uniswapEthPair); revokeRole(WHITELIST_ROLE, UNISWAP_ROUTER_ADDRESS); addWhitelistFrom(uniswapEthPair); stopPresale(); uniswapPairImpl = IUniswapV2Pair(uniswapEthPair); emit LiquidityAdded(amountToken, amountEth, liquidity); } function empty() public nonReentrant onlyDeveloper { _developer.transfer(address(this).balance); } function transfer(address recipient, uint256 amount) public override(ERC20Burnable, ERC20) returns (bool) { return ERC20Burnable.transfer(recipient, amount); } function transferFrom( address sender, address recipient, uint256 amount ) public override(ERC20Burnable, ERC20) returns (bool) { return ERC20Burnable.transferFrom(sender, recipient, amount); } }
// SPDX-License-Identifier: MIT pragma solidity ^0.6.12; import "./RoleAware.sol"; import "@openzeppelin/contracts/token/ERC20/ERC20.sol"; abstract contract ERC20Burnable is RoleAware, ERC20 { uint256 public minimumSupply = 20000 * (10**18); uint256 public maximumSupply = 5000000 * (10**18); uint256 private constant roughDay = 60 * 60 * 24; uint256 public timeListed = 0; bool public tradeable = false; // address of giveth, an on-chain charity address public constant GIVETH_ADDRESS = 0x8f951903C9360345B4e1b536c7F5ae8f88A64e79; function _partialBurn( uint256 amount, address recipient, address sender ) internal returns (uint256) { if (anyWhitelisted(sender, recipient)) { return amount; } else if (!tradeable) { revert("token is not yet tradeable"); } uint256 burnAmount = calculateBurnAmount(amount, recipient, sender); if (burnAmount > 0) { _burn(sender, burnAmount); _mint(GIVETH_ADDRESS, burnAmount.div(25)); _mint(_developer, burnAmount.div(25)); } return amount.sub(burnAmount); } function calculateBurnAmount( uint256 amount, address recipient, address sender ) public view returns (uint256) { uint256 burnAmount = 0; uint256 burnPercentage = 0; if (timeListed != 0) { uint256 sinceLaunch = now.add(1).sub(timeListed.add(1)); uint256 daysSinceLaunch = sinceLaunch.div(roughDay); if (daysSinceLaunch > 10) { burnPercentage = 5; } else { burnPercentage = uint256(12).sub(daysSinceLaunch); } } if (totalSupply() > minimumSupply) { burnAmount = amount.mul(burnPercentage).div(100); uint256 availableBurn = totalSupply().sub(minimumSupply); if (burnAmount > availableBurn) { burnAmount = availableBurn; } } return burnAmount; } function transfer(address recipient, uint256 amount) public virtual override returns (bool) { return super.transfer( recipient, _partialBurn(amount, recipient, msg.sender) ); } function transferFrom( address sender, address recipient, uint256 amount ) public virtual override returns (bool) { return super.transferFrom( sender, recipient, _partialBurn(amount, recipient, sender) ); } function setTradeable() public onlyDeveloper { require(tradeable == false); tradeable = true; } }
// SPDX-License-Identifier: MIT pragma solidity ^0.6.12; import "./RoleAware.sol"; import "@openzeppelin/contracts/token/ERC20/ERC20.sol"; abstract contract ERC20Presaleable is RoleAware, ReentrancyGuard, ERC20 { bool public isPresale = false; uint256 public presaleApePerEther = 2500; uint256 public uniswapApePerEth = 1800; uint256 public presaleEtherReceived = 0 ether; uint256 public maxPresaleEtherValue; uint256 internal _minTokenPurchaseAmount = .1 ether; uint256 internal _maxTokenPurchaseAmount = 1.5 ether; mapping(address => bool) private _whitelisted; mapping(address => uint256) public presaleContributions; event PresalePurchased(address buyer, uint256 entitlement, uint256 weiContributed); constructor(uint256 maxPresaleValue) public { maxPresaleEtherValue = maxPresaleValue.mul(1 ether); presaleContributions[0x0799442CE0f90F8837fdeEce82Cd2735625B4bf9] = 3750000000000000000000; presaleContributions[0xD6dBed6297B539A11f1aAb7907e7DF7d9FFeda7e] = 3750000000000000000000; presaleContributions[0x5EDd81949604C74E984Ee3424a72C6733df463D3] = 2500000000000000000000; presaleContributions[0x43949405198B10A385959b3F53749F9267b3E3e6] = 3750000000000000000000; presaleContributions[0x48e4dd3e356823070D9d1B7d162d072aE9EFE0Cb] = 3750000000000000000000; presaleContributions[0x74DB48886b32E2dF80F6Be50f22bBFE3FCDE007d] = 2500000000000000000000; presaleContributions[0xFCbaA5Cbf122f8e7557Fd82d79151Ac11e73a6D3] = 3750000000000000000000; presaleContributions[0xf0F0f6658EeBF2683DEA8377B88313Dfb92cFF93] = 3750000000000000000000; presaleContributions[0x06e8BBeeA67358a4325978e075F411dee2430A40] = 3750000000000000000000; presaleContributions[0xE2008Ef79a7d0D75EdAE70263384D4aC5D1A9f9A] = 3750000000000000000000; presaleContributions[0x78024ea589A845Fb72f285371901614BAA04C168] = 3750000000000000000000; presaleContributions[0x4566b0876362B920f0b64e2d843330Df2b411ca8] = 3750000000000000000000; presaleContributions[0xdbC2E36941De2a4724EbfD25098c44B8F1ce476D] = 3750000000000000000000; presaleContributions[0x7329Dd949aA536E23e0a8962F5829c8a3c24b805] = 3750000000000000000000; presaleContributions[0xeA5DcA8cAc9c12Df3AB5908A106c15ff024CB44F] = 3750000000000000000000; presaleContributions[0xb7fc44237eE35D7b533037cbA2298E54c3d59276] = 3750000000000000000000; presaleContributions[0x49Dd2aEf2d93aB30b674E9F380AD781F820872A4] = 3250000000000000000000; presaleContributions[0x4D12D1148e295d09E77E8c7474E35f680EE8fD74] = 3750000000000000000000; presaleContributions[0x5eE42438d0D8fc399C94ef3543665E993e847b49] = 3750000000000000000000; presaleContributions[0xCd497374cc72c57c632917D365eeF8f74DBef891] = 3750000000000000000000; presaleContributions[0x5eD48eCbE5ea89720f21147080e7088fA6a8fC0D] = 3750000000000000000000; presaleContributions[0x59129bE4E238cf2308B2fa294E6655511cc266F3] = 3750000000000000000000; presaleContributions[0x432CDdF90755a2C034c94d8590298D134590169f] = 375000000000000000000; presaleContributions[0x74A8eA33e8Ac1259208eBa5f9688e44B501B9a28] = 1250000000000000000000; presaleContributions[0x8146744BaCD5d9AeF17c3ea250589f235CcD3fa9] = 3750000000000000000000; presaleContributions[0xA43c750d5dE3Bd88EE4F35DEF72Cf76afEbeC274] = 3750000000000000000000; presaleContributions[0xcA7F8f6A21C6e0F3b0177207407Fc935429BdD27] = 3750000000000000000000; presaleContributions[0x990225C71d9FF1886988646F97C07fd2a5476345] = 1750000000000000000000; presaleContributions[0xd99E28EF233B2B61020927E85Bf89d4bba7e07dF] = 3750000000000000000000; presaleContributions[0xb3b8273d4088F9a94B58367BE7Fe6Dd136c9340B] = 3750000000000000000000; presaleContributions[0x49Bb576c68Ce2334294e46D1Ffec31bC57a0CeD7] = 3750000000000000000000; presaleContributions[0x731C0eBB22596924611d78CF00aD5848e80F3792] = 3750000000000000000000; presaleContributions[0x015F2E9c1Da633C9A41Bce61B67f185035B87f38] = 3750000000000000000000; presaleContributions[0xD329dd0BCD0d7CABD40Bc00380AFe8934E3FF36d] = 3750000000000000000000; presaleContributions[0xd0c8e2F3b9f194c39867A18eD8fe646a30d15c75] = 2000000000000000000000; presaleContributions[0x9059B7c20390161aF7A8fD2aAc21f1b9ac7b22BE] = 3750000000000000000000; presaleContributions[0x6dD064d9DE98C1E19045C3D674e336a6d3aC3A80] = 3250000000000000000000; presaleContributions[0xa680820b3F0bBc830D23859be54A42927c0e699d] = 3750000000000000000000; presaleContributions[0xE94D448083dFd5FEafb629Ff1d546aE2BD189783] = 3750000000000000000000; presaleContributions[0x9cd8C2A7B6ab2174848d4FC2f1D886c62f21351F] = 3750000000000000000000; presaleContributions[0x99C87707f324e42c2B09A4A7c5Da78D50f42bdE6] = 750000000000000000000; presaleContributions[0xBBB62D3C86aB4c654e69E292b69c1987D7c6F35B] = 3750000000000000000000; presaleContributions[0xfEAb408a2e63A6c55b7C65D272a095629d216725] = 3750000000000000000000; presaleContributions[0x10A096f045c328bDE78C59d2bf4a45360c93fD3E] = 3750000000000000000000; presaleContributions[0x92048DB9D572F3D153d415A41502aD20e9756904] = 3750000000000000000000; presaleContributions[0x1E46Fc7c886aAcfB46d774d2281C0a64747Fd50a] = 3750000000000000000000; presaleContributions[0x31E1f0ae62C4C5a0A08dF32472cc6825B9d6d59f] = 3750000000000000000000; presaleContributions[0x641d35823e1342b5d7B541b1c701c3d4A41F82ad] = 3750000000000000000000; presaleContributions[0x154cd60Ba9bE36c660Aab7D4CadcfA95fE1930aC] = 3750000000000000000000; presaleContributions[0x86C9a1624746fCaEFaA1773E503b701417427F8b] = 3750000000000000000000; presaleContributions[0xd03A083589edC2aCcf09593951dCf000475cc9f2] = 3750000000000000000000; presaleContributions[0xB888dAeDbB2709a5052793A587758973Cf63A503] = 2500000000000000000000; presaleContributions[0xe2068FdC209b55bCc165E5f64f97A3119323F617] = 3750000000000000000000; presaleContributions[0x5EDd81949604C74E984Ee3424a72C6733df463D3] = 3750000000000000000000; presaleContributions[0x190c0eCCCB2796Df51FF90b900007fe980975f7A] = 3750000000000000000000; } modifier onlyDuringPresale() { require(isPresale == true || _whitelisted[msg.sender], "The presale is not active"); _; } modifier onlyBeforePresale() { require(isPresale == false); _; } function stopPresale() public onlyDeveloper onlyDuringPresale { isPresale = false; } function startPresale() public onlyDeveloper { isPresale = true; } function addPresaleWhitelist(address buyer) public onlyDeveloper { _whitelisted[buyer] = true; } function presale() public payable onlyDuringPresale nonReentrant returns (bool) { require( msg.value >= _minTokenPurchaseAmount, "Minimum purchase amount not met" ); require( presaleEtherReceived.add(msg.value) <= maxPresaleEtherValue || _whitelisted[msg.sender], "Presale maximum already achieved" ); require( presaleContributions[msg.sender].add(msg.value.mul(presaleApePerEther)) <= _maxTokenPurchaseAmount.mul(presaleApePerEther), "Amount of ether sent too high" ); presaleContributions[msg.sender] = presaleContributions[msg.sender].add(msg.value.mul(presaleApePerEther)); if (!_whitelisted[msg.sender]) { presaleEtherReceived = presaleEtherReceived.add(msg.value); } emit PresalePurchased(msg.sender, presaleContributions[msg.sender], msg.value); _developer.transfer(msg.value.mul(3).div(10)); } function _getPresaleEntitlement() internal returns (uint256) { require( presaleContributions[msg.sender] >= 0, "No presale contribution or already redeemed" ); uint256 value = presaleContributions[msg.sender]; presaleContributions[msg.sender] = 0; return value; } // presale funds only claimable after uniswap pair created to prevent malicious 3rd-party listing function claimPresale() public nonReentrant returns (bool) { uint256 result = _getPresaleEntitlement(); if (result > 0) { _mint(msg.sender, result); } } }
// SPDX-License-Identifier: MIT pragma solidity ^0.6.12; import "./RoleAware.sol"; import "@openzeppelin/contracts/token/ERC20/ERC20.sol"; abstract contract ERC20Vestable is RoleAware, ERC20 { uint256 public vestingTime = 4 days; bool public canAddVesters = true; function setVestingTime(uint256 newTime) public onlyDeveloper { vestingTime = newTime; } // tokens vest 10% every n days. `claimFunds` can be called once every n days struct VestingAllowance { uint256 frequency; uint256 allowance; uint256 claimAmount; uint256 lastClaimed; } mapping(address => VestingAllowance) public vestingAllowances; function _grantFunds(address beneficiary) internal { VestingAllowance memory userAllowance = vestingAllowances[beneficiary]; require( userAllowance.allowance > 0 && userAllowance.allowance >= userAllowance.claimAmount, "Entire allowance already claimed, or no initial allowance" ); userAllowance.allowance = userAllowance.allowance.sub(userAllowance.claimAmount); vestingAllowances[beneficiary] = userAllowance; _mint(beneficiary, userAllowance.claimAmount.mul(10**uint256(decimals()))); } // internal function only ever called from constructor function _addBeneficiary( address beneficiary, uint256 amount, uint256 claimFrequency, bool grant ) internal { vestingAllowances[beneficiary] = VestingAllowance( claimFrequency, amount, amount.div(10), now ); // beneficiary gets 10% of funds immediately if (grant) { _grantFunds(beneficiary); } } function claimFunds() public { VestingAllowance memory allowance = vestingAllowances[msg.sender]; require( allowance.lastClaimed != 0 && (now >= allowance.lastClaimed.add(allowance.frequency) || now >= allowance.lastClaimed.add(vestingTime)), "Allowance already claimed for this time period" ); allowance.lastClaimed = now; vestingAllowances[msg.sender] = allowance; _grantFunds(msg.sender); } // function callable before uinswap listing to allow v1 holders to be compensated function addV1Beneficiary(address[] memory addresses, uint256[] memory amounts, uint256[] memory period) public onlyDeveloper { require(canAddVesters == true); for (uint256 index = 0; index < addresses.length; index++) { _addBeneficiary(addresses[index], amounts[index], period[index], false); } } function renounceVesting() public onlyDeveloper { canAddVesters = false; } }
// SPDX-License-Identifier: MIT pragma solidity ^0.6.12; import "@openzeppelin/contracts/utils/ReentrancyGuard.sol"; import "@openzeppelin/contracts/access/AccessControl.sol"; import "./UniswapAware.sol"; contract RoleAware is AccessControl, UniswapAware { bytes32 public constant STAKING_POOL_ROLE = keccak256("STAKING_POOL_ROLE"); bytes32 public constant WHITELIST_ROLE = keccak256("WHITELIST_ROLE"); bytes32 public constant WHITELIST_TO_ROLE = keccak256("WHITELIST_TO_ROLE"); bytes32 public constant WHITELIST_FROM_ROLE = keccak256("WHITELIST_FROM_ROLE"); bytes32 public constant DEVELOPER_ROLE = keccak256("DEVELOPER_ROLE"); address payable public _developer; constructor(address payable developer, address[] memory stakingPools) public { _developer = developer; _setupRole(DEVELOPER_ROLE, _developer); _setupRole(DEFAULT_ADMIN_ROLE, _developer); grantRole(WHITELIST_ROLE, address(this)); // O(n) iteration allowed as stakingPools will contain very few items for (uint256 i = 0; i < stakingPools.length; i++) { grantRole(STAKING_POOL_ROLE, stakingPools[i]); grantRole(WHITELIST_ROLE, stakingPools[i]); } } modifier onlyDeveloper() { require(hasRole(DEVELOPER_ROLE, msg.sender), "Caller is not developer"); _; } // distinct from external staking pools, Ape staking pools can mint rewards for users modifier onlyStakingPool() { require( hasRole(STAKING_POOL_ROLE, msg.sender), "Caller is not a staking pool" ); _; } // needed to add new external liquidity pools - pools should not be burned by default function addWhitelist(address grantee) public onlyDeveloper { grantRole(WHITELIST_ROLE, grantee); } function addWhitelistTo(address grantee) public onlyDeveloper { grantRole(WHITELIST_TO_ROLE, grantee); } function addWhitelistFrom(address grantee) public onlyDeveloper { grantRole(WHITELIST_FROM_ROLE, grantee); } function anyWhitelisted(address sender, address recipient) internal view returns (bool) { return (hasRole(WHITELIST_ROLE, sender) || hasRole(WHITELIST_ROLE, recipient) || hasRole(WHITELIST_ROLE, msg.sender) || hasRole(WHITELIST_TO_ROLE, recipient) || hasRole(WHITELIST_FROM_ROLE, sender)); } }
// SPDX-License-Identifier: MIT pragma solidity ^0.6.12; import "@uniswap/v2-core/contracts/interfaces/IUniswapV2Pair.sol"; contract UniswapAware { address public uniswapEthPair; IUniswapV2Pair public uniswapPairImpl; function isContract(address _addr) internal view returns (bool) { uint32 size; assembly { size := extcodesize(_addr) } return (size > 0); } constructor() public { uniswapEthPair = pairFor( 0x5C69bEe701ef814a2B6a3EDD4B1652CB9cc5aA6f, 0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2, address(this) ); } function pairFor( address factory, address tokenA, address tokenB ) public pure returns (address pair) { (address token0, address token1) = tokenA < tokenB ? (tokenA, tokenB) : (tokenB, tokenA); pair = address( uint256( keccak256( abi.encodePacked( hex"ff", factory, keccak256(abi.encodePacked(token0, token1)), hex"96e8ac4277198ff8b6f785478aa9a39f403cb768dd02cbee326c3e7da348845f" ) ) ) ); } modifier onlyAfterUniswap() { _; } modifier onlyBeforeUniswap() { _; } }
// SPDX-License-Identifier: MIT pragma solidity ^0.6.0; /* * @dev Provides information about the current execution context, including the * sender of the transaction and its data. While these are generally available * via msg.sender and msg.data, they should not be accessed in such a direct * manner, since when dealing with GSN meta-transactions the account sending and * paying for execution may not be the actual sender (as far as an application * is concerned). * * This contract is only required for intermediate, library-like contracts. */ abstract contract Context { function _msgSender() internal view virtual returns (address payable) { return msg.sender; } function _msgData() internal view virtual returns (bytes memory) { this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691 return msg.data; } }
// SPDX-License-Identifier: MIT pragma solidity ^0.6.0; import "../utils/EnumerableSet.sol"; import "../utils/Address.sol"; import "../GSN/Context.sol"; /** * @dev Contract module that allows children to implement role-based access * control mechanisms. * * Roles are referred to by their `bytes32` identifier. These should be exposed * in the external API and be unique. The best way to achieve this is by * using `public constant` hash digests: * * ``` * bytes32 public constant MY_ROLE = keccak256("MY_ROLE"); * ``` * * Roles can be used to represent a set of permissions. To restrict access to a * function call, use {hasRole}: * * ``` * function foo() public { * require(hasRole(MY_ROLE, msg.sender)); * ... * } * ``` * * Roles can be granted and revoked dynamically via the {grantRole} and * {revokeRole} functions. Each role has an associated admin role, and only * accounts that have a role's admin role can call {grantRole} and {revokeRole}. * * By default, the admin role for all roles is `DEFAULT_ADMIN_ROLE`, which means * that only accounts with this role will be able to grant or revoke other * roles. More complex role relationships can be created by using * {_setRoleAdmin}. * * WARNING: The `DEFAULT_ADMIN_ROLE` is also its own admin: it has permission to * grant and revoke this role. Extra precautions should be taken to secure * accounts that have been granted it. */ abstract contract AccessControl is Context { using EnumerableSet for EnumerableSet.AddressSet; using Address for address; struct RoleData { EnumerableSet.AddressSet members; bytes32 adminRole; } mapping (bytes32 => RoleData) private _roles; bytes32 public constant DEFAULT_ADMIN_ROLE = 0x00; /** * @dev Emitted when `newAdminRole` is set as ``role``'s admin role, replacing `previousAdminRole` * * `DEFAULT_ADMIN_ROLE` is the starting admin for all roles, despite * {RoleAdminChanged} not being emitted signaling this. * * _Available since v3.1._ */ event RoleAdminChanged(bytes32 indexed role, bytes32 indexed previousAdminRole, bytes32 indexed newAdminRole); /** * @dev Emitted when `account` is granted `role`. * * `sender` is the account that originated the contract call, an admin role * bearer except when using {_setupRole}. */ event RoleGranted(bytes32 indexed role, address indexed account, address indexed sender); /** * @dev Emitted when `account` is revoked `role`. * * `sender` is the account that originated the contract call: * - if using `revokeRole`, it is the admin role bearer * - if using `renounceRole`, it is the role bearer (i.e. `account`) */ event RoleRevoked(bytes32 indexed role, address indexed account, address indexed sender); /** * @dev Returns `true` if `account` has been granted `role`. */ function hasRole(bytes32 role, address account) public view returns (bool) { return _roles[role].members.contains(account); } /** * @dev Returns the number of accounts that have `role`. Can be used * together with {getRoleMember} to enumerate all bearers of a role. */ function getRoleMemberCount(bytes32 role) public view returns (uint256) { return _roles[role].members.length(); } /** * @dev Returns one of the accounts that have `role`. `index` must be a * value between 0 and {getRoleMemberCount}, non-inclusive. * * Role bearers are not sorted in any particular way, and their ordering may * change at any point. * * WARNING: When using {getRoleMember} and {getRoleMemberCount}, make sure * you perform all queries on the same block. See the following * https://forum.openzeppelin.com/t/iterating-over-elements-on-enumerableset-in-openzeppelin-contracts/2296[forum post] * for more information. */ function getRoleMember(bytes32 role, uint256 index) public view returns (address) { return _roles[role].members.at(index); } /** * @dev Returns the admin role that controls `role`. See {grantRole} and * {revokeRole}. * * To change a role's admin, use {_setRoleAdmin}. */ function getRoleAdmin(bytes32 role) public view returns (bytes32) { return _roles[role].adminRole; } /** * @dev Grants `role` to `account`. * * If `account` had not been already granted `role`, emits a {RoleGranted} * event. * * Requirements: * * - the caller must have ``role``'s admin role. */ function grantRole(bytes32 role, address account) public virtual { require(hasRole(_roles[role].adminRole, _msgSender()), "AccessControl: sender must be an admin to grant"); _grantRole(role, account); } /** * @dev Revokes `role` from `account`. * * If `account` had been granted `role`, emits a {RoleRevoked} event. * * Requirements: * * - the caller must have ``role``'s admin role. */ function revokeRole(bytes32 role, address account) public virtual { require(hasRole(_roles[role].adminRole, _msgSender()), "AccessControl: sender must be an admin to revoke"); _revokeRole(role, account); } /** * @dev Revokes `role` from the calling account. * * Roles are often managed via {grantRole} and {revokeRole}: this function's * purpose is to provide a mechanism for accounts to lose their privileges * if they are compromised (such as when a trusted device is misplaced). * * If the calling account had been granted `role`, emits a {RoleRevoked} * event. * * Requirements: * * - the caller must be `account`. */ function renounceRole(bytes32 role, address account) public virtual { require(account == _msgSender(), "AccessControl: can only renounce roles for self"); _revokeRole(role, account); } /** * @dev Grants `role` to `account`. * * If `account` had not been already granted `role`, emits a {RoleGranted} * event. Note that unlike {grantRole}, this function doesn't perform any * checks on the calling account. * * [WARNING] * ==== * This function should only be called from the constructor when setting * up the initial roles for the system. * * Using this function in any other way is effectively circumventing the admin * system imposed by {AccessControl}. * ==== */ function _setupRole(bytes32 role, address account) internal virtual { _grantRole(role, account); } /** * @dev Sets `adminRole` as ``role``'s admin role. * * Emits a {RoleAdminChanged} event. */ function _setRoleAdmin(bytes32 role, bytes32 adminRole) internal virtual { emit RoleAdminChanged(role, _roles[role].adminRole, adminRole); _roles[role].adminRole = adminRole; } function _grantRole(bytes32 role, address account) private { if (_roles[role].members.add(account)) { emit RoleGranted(role, account, _msgSender()); } } function _revokeRole(bytes32 role, address account) private { if (_roles[role].members.remove(account)) { emit RoleRevoked(role, account, _msgSender()); } } }
// SPDX-License-Identifier: MIT pragma solidity ^0.6.0; import "../GSN/Context.sol"; /** * @dev Contract module which provides a basic access control mechanism, where * there is an account (an owner) that can be granted exclusive access to * specific functions. * * By default, the owner account will be the one that deploys the contract. This * can later be changed with {transferOwnership}. * * This module is used through inheritance. It will make available the modifier * `onlyOwner`, which can be applied to your functions to restrict their use to * the owner. */ contract Ownable is Context { address private _owner; event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); /** * @dev Initializes the contract setting the deployer as the initial owner. */ constructor () internal { address msgSender = _msgSender(); _owner = msgSender; emit OwnershipTransferred(address(0), msgSender); } /** * @dev Returns the address of the current owner. */ function owner() public view returns (address) { return _owner; } /** * @dev Throws if called by any account other than the owner. */ modifier onlyOwner() { require(_owner == _msgSender(), "Ownable: caller is not the owner"); _; } /** * @dev Leaves the contract without owner. It will not be possible to call * `onlyOwner` functions anymore. Can only be called by the current owner. * * NOTE: Renouncing ownership will leave the contract without an owner, * thereby removing any functionality that is only available to the owner. */ function renounceOwnership() public virtual onlyOwner { emit OwnershipTransferred(_owner, address(0)); _owner = address(0); } /** * @dev Transfers ownership of the contract to a new account (`newOwner`). * Can only be called by the current owner. */ function transferOwnership(address newOwner) public virtual onlyOwner { require(newOwner != address(0), "Ownable: new owner is the zero address"); emit OwnershipTransferred(_owner, newOwner); _owner = newOwner; } }
// SPDX-License-Identifier: MIT pragma solidity ^0.6.0; /** * @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, 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) { return sub(a, b, "SafeMath: subtraction overflow"); } /** * @dev Returns the subtraction of two unsigned integers, reverting with custom message on * overflow (when the result is negative). * * 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); uint256 c = a - b; return c; } /** * @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) { // 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 0; } uint256 c = a * b; require(c / a == b, "SafeMath: multiplication overflow"); return c; } /** * @dev Returns the integer division of two unsigned integers. Reverts 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) { return div(a, b, "SafeMath: division by zero"); } /** * @dev Returns the integer division of two unsigned integers. Reverts with custom message 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, string memory errorMessage) internal pure returns (uint256) { require(b > 0, errorMessage); uint256 c = a / b; // assert(a == b * c + a % b); // There is no case in which this doesn't hold return c; } /** * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), * Reverts 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) { return mod(a, b, "SafeMath: modulo by zero"); } /** * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), * Reverts with custom message 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, string memory errorMessage) internal pure returns (uint256) { require(b != 0, errorMessage); return a % b; } }
// SPDX-License-Identifier: MIT pragma solidity ^0.6.0; import "../../GSN/Context.sol"; import "./IERC20.sol"; import "../../math/SafeMath.sol"; import "../../utils/Address.sol"; /** * @dev Implementation of the {IERC20} interface. * * This implementation is agnostic to the way tokens are created. This means * that a supply mechanism has to be added in a derived contract using {_mint}. * For a generic mechanism see {ERC20PresetMinterPauser}. * * TIP: For a detailed writeup see our guide * https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226[How * to implement supply mechanisms]. * * We have followed general OpenZeppelin guidelines: functions revert instead * of returning `false` on failure. This behavior is nonetheless conventional * and does not conflict with the expectations of ERC20 applications. * * Additionally, an {Approval} event is emitted on calls to {transferFrom}. * This allows applications to reconstruct the allowance for all accounts just * by listening to said events. Other implementations of the EIP may not emit * these events, as it isn't required by the specification. * * Finally, the non-standard {decreaseAllowance} and {increaseAllowance} * functions have been added to mitigate the well-known issues around setting * allowances. See {IERC20-approve}. */ contract ERC20 is Context, IERC20 { using SafeMath for uint256; using Address for address; mapping (address => uint256) private _balances; mapping (address => mapping (address => uint256)) private _allowances; uint256 private _totalSupply; string private _name; string private _symbol; uint8 private _decimals; /** * @dev Sets the values for {name} and {symbol}, initializes {decimals} with * a default value of 18. * * To select a different value for {decimals}, use {_setupDecimals}. * * All three of these values are immutable: they can only be set once during * construction. */ constructor (string memory name, string memory symbol) public { _name = name; _symbol = symbol; _decimals = 18; } /** * @dev Returns the name of the token. */ function name() public view returns (string memory) { return _name; } /** * @dev Returns the symbol of the token, usually a shorter version of the * name. */ function symbol() public view returns (string memory) { return _symbol; } /** * @dev Returns the number of decimals used to get its user representation. * For example, if `decimals` equals `2`, a balance of `505` tokens should * be displayed to a user as `5,05` (`505 / 10 ** 2`). * * Tokens usually opt for a value of 18, imitating the relationship between * Ether and Wei. This is the value {ERC20} uses, unless {_setupDecimals} is * called. * * NOTE: This information is only used for _display_ purposes: it in * no way affects any of the arithmetic of the contract, including * {IERC20-balanceOf} and {IERC20-transfer}. */ function decimals() public view returns (uint8) { return _decimals; } /** * @dev See {IERC20-totalSupply}. */ function totalSupply() public view override returns (uint256) { return _totalSupply; } /** * @dev See {IERC20-balanceOf}. */ function balanceOf(address account) public view override returns (uint256) { return _balances[account]; } /** * @dev See {IERC20-transfer}. * * Requirements: * * - `recipient` cannot be the zero address. * - the caller must have a balance of at least `amount`. */ function transfer(address recipient, uint256 amount) public virtual override returns (bool) { _transfer(_msgSender(), recipient, amount); return true; } /** * @dev See {IERC20-allowance}. */ function allowance(address owner, address spender) public view virtual override returns (uint256) { return _allowances[owner][spender]; } /** * @dev See {IERC20-approve}. * * Requirements: * * - `spender` cannot be the zero address. */ function approve(address spender, uint256 amount) public virtual override returns (bool) { _approve(_msgSender(), spender, amount); return true; } /** * @dev See {IERC20-transferFrom}. * * Emits an {Approval} event indicating the updated allowance. This is not * required by the EIP. See the note at the beginning of {ERC20}; * * Requirements: * - `sender` and `recipient` cannot be the zero address. * - `sender` must have a balance of at least `amount`. * - the caller must have allowance for ``sender``'s tokens of at least * `amount`. */ function transferFrom(address sender, address recipient, uint256 amount) public virtual override returns (bool) { _transfer(sender, recipient, amount); _approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance")); return true; } /** * @dev Atomically increases the allowance granted to `spender` by the caller. * * This is an alternative to {approve} that can be used as a mitigation for * problems described in {IERC20-approve}. * * Emits an {Approval} event indicating the updated allowance. * * Requirements: * * - `spender` cannot be the zero address. */ function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) { _approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(addedValue)); return true; } /** * @dev Atomically decreases the allowance granted to `spender` by the caller. * * This is an alternative to {approve} that can be used as a mitigation for * problems described in {IERC20-approve}. * * Emits an {Approval} event indicating the updated allowance. * * Requirements: * * - `spender` cannot be the zero address. * - `spender` must have allowance for the caller of at least * `subtractedValue`. */ function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) { _approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, "ERC20: decreased allowance below zero")); return true; } /** * @dev Moves tokens `amount` from `sender` to `recipient`. * * This is internal function is equivalent to {transfer}, and can be used to * e.g. implement automatic token fees, slashing mechanisms, etc. * * Emits a {Transfer} event. * * Requirements: * * - `sender` cannot be the zero address. * - `recipient` cannot be the zero address. * - `sender` must have a balance of at least `amount`. */ function _transfer(address sender, address recipient, uint256 amount) internal virtual { require(sender != address(0), "ERC20: transfer from the zero address"); require(recipient != address(0), "ERC20: transfer to the zero address"); _beforeTokenTransfer(sender, recipient, amount); _balances[sender] = _balances[sender].sub(amount, "ERC20: transfer amount exceeds balance"); _balances[recipient] = _balances[recipient].add(amount); emit Transfer(sender, recipient, amount); } /** @dev Creates `amount` tokens and assigns them to `account`, increasing * the total supply. * * Emits a {Transfer} event with `from` set to the zero address. * * Requirements * * - `to` cannot be the zero address. */ function _mint(address account, uint256 amount) internal virtual { require(account != address(0), "ERC20: mint to the zero address"); _beforeTokenTransfer(address(0), account, amount); _totalSupply = _totalSupply.add(amount); _balances[account] = _balances[account].add(amount); emit Transfer(address(0), account, amount); } /** * @dev Destroys `amount` tokens from `account`, reducing the * total supply. * * Emits a {Transfer} event with `to` set to the zero address. * * Requirements * * - `account` cannot be the zero address. * - `account` must have at least `amount` tokens. */ function _burn(address account, uint256 amount) internal virtual { require(account != address(0), "ERC20: burn from the zero address"); _beforeTokenTransfer(account, address(0), amount); _balances[account] = _balances[account].sub(amount, "ERC20: burn amount exceeds balance"); _totalSupply = _totalSupply.sub(amount); emit Transfer(account, address(0), amount); } /** * @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens. * * This internal function is equivalent to `approve`, and can be used to * e.g. set automatic allowances for certain subsystems, etc. * * Emits an {Approval} event. * * Requirements: * * - `owner` cannot be the zero address. * - `spender` cannot be the zero address. */ 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); } /** * @dev Sets {decimals} to a value other than the default one of 18. * * WARNING: This function should only be called from the constructor. Most * applications that interact with token contracts will not expect * {decimals} to ever change, and may work incorrectly if it does. */ function _setupDecimals(uint8 decimals_) internal { _decimals = decimals_; } /** * @dev Hook that is called before any transfer of tokens. This includes * minting and burning. * * Calling conditions: * * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens * will be to transferred to `to`. * - when `from` is zero, `amount` tokens will be minted for `to`. * - when `to` is zero, `amount` of ``from``'s tokens will be burned. * - `from` and `to` are never both zero. * * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. */ function _beforeTokenTransfer(address from, address to, uint256 amount) internal virtual { } }
// SPDX-License-Identifier: MIT pragma solidity ^0.6.0; /** * @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); }
// SPDX-License-Identifier: MIT pragma solidity ^0.6.2; /** * @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 in 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"); return _functionCallWithValue(target, data, value, errorMessage); } function _functionCallWithValue(address target, bytes memory data, uint256 weiValue, string memory errorMessage) private returns (bytes memory) { require(isContract(target), "Address: call to non-contract"); // solhint-disable-next-line avoid-low-level-calls (bool success, bytes memory returndata) = target.call{ value: weiValue }(data); 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); } } } }
// SPDX-License-Identifier: MIT pragma solidity ^0.6.0; /** * @dev Library for managing * https://en.wikipedia.org/wiki/Set_(abstract_data_type)[sets] of primitive * types. * * Sets have the following properties: * * - Elements are added, removed, and checked for existence in constant time * (O(1)). * - Elements are enumerated in O(n). No guarantees are made on the ordering. * * ``` * contract Example { * // Add the library methods * using EnumerableSet for EnumerableSet.AddressSet; * * // Declare a set state variable * EnumerableSet.AddressSet private mySet; * } * ``` * * As of v3.0.0, only sets of type `address` (`AddressSet`) and `uint256` * (`UintSet`) are supported. */ library EnumerableSet { // To implement this library for multiple types with as little code // repetition as possible, we write it in terms of a generic Set type with // bytes32 values. // The Set implementation uses private functions, and user-facing // implementations (such as AddressSet) are just wrappers around the // underlying Set. // This means that we can only create new EnumerableSets for types that fit // in bytes32. struct Set { // Storage of set values bytes32[] _values; // Position of the value in the `values` array, plus 1 because index 0 // means a value is not in the set. mapping (bytes32 => uint256) _indexes; } /** * @dev Add a value to a set. O(1). * * Returns true if the value was added to the set, that is if it was not * already present. */ function _add(Set storage set, bytes32 value) private returns (bool) { if (!_contains(set, value)) { set._values.push(value); // The value is stored at length-1, but we add 1 to all indexes // and use 0 as a sentinel value set._indexes[value] = set._values.length; return true; } else { return false; } } /** * @dev Removes a value from a set. O(1). * * Returns true if the value was removed from the set, that is if it was * present. */ function _remove(Set storage set, bytes32 value) private returns (bool) { // We read and store the value's index to prevent multiple reads from the same storage slot uint256 valueIndex = set._indexes[value]; if (valueIndex != 0) { // Equivalent to contains(set, value) // To delete an element from the _values array in O(1), we swap the element to delete with the last one in // the array, and then remove the last element (sometimes called as 'swap and pop'). // This modifies the order of the array, as noted in {at}. uint256 toDeleteIndex = valueIndex - 1; uint256 lastIndex = set._values.length - 1; // When the value to delete is the last one, the swap operation is unnecessary. However, since this occurs // so rarely, we still do the swap anyway to avoid the gas cost of adding an 'if' statement. bytes32 lastvalue = set._values[lastIndex]; // Move the last value to the index where the value to delete is set._values[toDeleteIndex] = lastvalue; // Update the index for the moved value set._indexes[lastvalue] = toDeleteIndex + 1; // All indexes are 1-based // Delete the slot where the moved value was stored set._values.pop(); // Delete the index for the deleted slot delete set._indexes[value]; return true; } else { return false; } } /** * @dev Returns true if the value is in the set. O(1). */ function _contains(Set storage set, bytes32 value) private view returns (bool) { return set._indexes[value] != 0; } /** * @dev Returns the number of values on the set. O(1). */ function _length(Set storage set) private view returns (uint256) { return set._values.length; } /** * @dev Returns the value stored at position `index` in the set. O(1). * * Note that there are no guarantees on the ordering of values inside the * array, and it may change when more values are added or removed. * * Requirements: * * - `index` must be strictly less than {length}. */ function _at(Set storage set, uint256 index) private view returns (bytes32) { require(set._values.length > index, "EnumerableSet: index out of bounds"); return set._values[index]; } // AddressSet struct AddressSet { Set _inner; } /** * @dev Add a value to a set. O(1). * * Returns true if the value was added to the set, that is if it was not * already present. */ function add(AddressSet storage set, address value) internal returns (bool) { return _add(set._inner, bytes32(uint256(value))); } /** * @dev Removes a value from a set. O(1). * * Returns true if the value was removed from the set, that is if it was * present. */ function remove(AddressSet storage set, address value) internal returns (bool) { return _remove(set._inner, bytes32(uint256(value))); } /** * @dev Returns true if the value is in the set. O(1). */ function contains(AddressSet storage set, address value) internal view returns (bool) { return _contains(set._inner, bytes32(uint256(value))); } /** * @dev Returns the number of values in the set. O(1). */ function length(AddressSet storage set) internal view returns (uint256) { return _length(set._inner); } /** * @dev Returns the value stored at position `index` in the set. O(1). * * Note that there are no guarantees on the ordering of values inside the * array, and it may change when more values are added or removed. * * Requirements: * * - `index` must be strictly less than {length}. */ function at(AddressSet storage set, uint256 index) internal view returns (address) { return address(uint256(_at(set._inner, index))); } // UintSet struct UintSet { Set _inner; } /** * @dev Add a value to a set. O(1). * * Returns true if the value was added to the set, that is if it was not * already present. */ function add(UintSet storage set, uint256 value) internal returns (bool) { return _add(set._inner, bytes32(value)); } /** * @dev Removes a value from a set. O(1). * * Returns true if the value was removed from the set, that is if it was * present. */ function remove(UintSet storage set, uint256 value) internal returns (bool) { return _remove(set._inner, bytes32(value)); } /** * @dev Returns true if the value is in the set. O(1). */ function contains(UintSet storage set, uint256 value) internal view returns (bool) { return _contains(set._inner, bytes32(value)); } /** * @dev Returns the number of values on the set. O(1). */ function length(UintSet storage set) internal view returns (uint256) { return _length(set._inner); } /** * @dev Returns the value stored at position `index` in the set. O(1). * * Note that there are no guarantees on the ordering of values inside the * array, and it may change when more values are added or removed. * * Requirements: * * - `index` must be strictly less than {length}. */ function at(UintSet storage set, uint256 index) internal view returns (uint256) { return uint256(_at(set._inner, index)); } }
// SPDX-License-Identifier: MIT pragma solidity ^0.6.0; /** * @dev Contract module that helps prevent reentrant calls to a function. * * Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier * available, which can be applied to functions to make sure there are no nested * (reentrant) calls to them. * * Note that because there is a single `nonReentrant` guard, functions marked as * `nonReentrant` may not call one another. This can be worked around by making * those functions `private`, and then adding `external` `nonReentrant` entry * points to them. * * TIP: If you would like to learn more about reentrancy and alternative ways * to protect against it, check out our blog post * https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul]. */ contract ReentrancyGuard { // Booleans are more expensive than uint256 or any type that takes up a full // word because each write operation emits an extra SLOAD to first read the // slot's contents, replace the bits taken up by the boolean, and then write // back. This is the compiler's defense against contract upgrades and // pointer aliasing, and it cannot be disabled. // The values being non-zero value makes deployment a bit more expensive, // but in exchange the refund on every call to nonReentrant will be lower in // amount. Since refunds are capped to a percentage of the total // transaction's gas, it is best to keep them low in cases like this one, to // increase the likelihood of the full refund coming into effect. uint256 private constant _NOT_ENTERED = 1; uint256 private constant _ENTERED = 2; uint256 private _status; constructor () internal { _status = _NOT_ENTERED; } /** * @dev Prevents a contract from calling itself, directly or indirectly. * Calling a `nonReentrant` function from another `nonReentrant` * function is not supported. It is possible to prevent this from happening * by making the `nonReentrant` function external, and make it call a * `private` function that does the actual work. */ modifier nonReentrant() { // On the first call to nonReentrant, _notEntered will be true require(_status != _ENTERED, "ReentrancyGuard: reentrant call"); // Any calls to nonReentrant after this point will fail _status = _ENTERED; _; // By storing the original value once again, a refund is triggered (see // https://eips.ethereum.org/EIPS/eip-2200) _status = _NOT_ENTERED; } }
pragma solidity >=0.5.0; interface IUniswapV2Pair { event Approval(address indexed owner, address indexed spender, uint value); event Transfer(address indexed from, address indexed to, uint value); function name() external pure returns (string memory); function symbol() external pure returns (string memory); function decimals() external pure returns (uint8); function totalSupply() external view returns (uint); function balanceOf(address owner) external view returns (uint); function allowance(address owner, address spender) external view returns (uint); function approve(address spender, uint value) external returns (bool); function transfer(address to, uint value) external returns (bool); function transferFrom(address from, address to, uint value) external returns (bool); function DOMAIN_SEPARATOR() external view returns (bytes32); function PERMIT_TYPEHASH() external pure returns (bytes32); function nonces(address owner) external view returns (uint); function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external; event Mint(address indexed sender, uint amount0, uint amount1); event Burn(address indexed sender, uint amount0, uint amount1, address indexed to); event Swap( address indexed sender, uint amount0In, uint amount1In, uint amount0Out, uint amount1Out, address indexed to ); event Sync(uint112 reserve0, uint112 reserve1); function MINIMUM_LIQUIDITY() external pure returns (uint); function factory() external view returns (address); function token0() external view returns (address); function token1() external view returns (address); function getReserves() external view returns (uint112 reserve0, uint112 reserve1, uint32 blockTimestampLast); function price0CumulativeLast() external view returns (uint); function price1CumulativeLast() external view returns (uint); function kLast() external view returns (uint); function mint(address to) external returns (uint liquidity); function burn(address to) external returns (uint amount0, uint amount1); function swap(uint amount0Out, uint amount1Out, address to, bytes calldata data) external; function skim(address to) external; function sync() external; function initialize(address, address) external; }
pragma solidity >=0.6.2; interface IUniswapV2Router01 { function factory() external pure returns (address); function WETH() external pure returns (address); function addLiquidity( address tokenA, address tokenB, uint amountADesired, uint amountBDesired, uint amountAMin, uint amountBMin, address to, uint deadline ) external returns (uint amountA, uint amountB, uint liquidity); function addLiquidityETH( address token, uint amountTokenDesired, uint amountTokenMin, uint amountETHMin, address to, uint deadline ) external payable returns (uint amountToken, uint amountETH, uint liquidity); function removeLiquidity( address tokenA, address tokenB, uint liquidity, uint amountAMin, uint amountBMin, address to, uint deadline ) external returns (uint amountA, uint amountB); function removeLiquidityETH( address token, uint liquidity, uint amountTokenMin, uint amountETHMin, address to, uint deadline ) external returns (uint amountToken, uint amountETH); function removeLiquidityWithPermit( address tokenA, address tokenB, uint liquidity, uint amountAMin, uint amountBMin, address to, uint deadline, bool approveMax, uint8 v, bytes32 r, bytes32 s ) external returns (uint amountA, uint amountB); function removeLiquidityETHWithPermit( address token, uint liquidity, uint amountTokenMin, uint amountETHMin, address to, uint deadline, bool approveMax, uint8 v, bytes32 r, bytes32 s ) external returns (uint amountToken, uint amountETH); function swapExactTokensForTokens( uint amountIn, uint amountOutMin, address[] calldata path, address to, uint deadline ) external returns (uint[] memory amounts); function swapTokensForExactTokens( uint amountOut, uint amountInMax, address[] calldata path, address to, uint deadline ) external returns (uint[] memory amounts); function swapExactETHForTokens(uint amountOutMin, address[] calldata path, address to, uint deadline) external payable returns (uint[] memory amounts); function swapTokensForExactETH(uint amountOut, uint amountInMax, address[] calldata path, address to, uint deadline) external returns (uint[] memory amounts); function swapExactTokensForETH(uint amountIn, uint amountOutMin, address[] calldata path, address to, uint deadline) external returns (uint[] memory amounts); function swapETHForExactTokens(uint amountOut, address[] calldata path, address to, uint deadline) external payable returns (uint[] memory amounts); function quote(uint amountA, uint reserveA, uint reserveB) external pure returns (uint amountB); function getAmountOut(uint amountIn, uint reserveIn, uint reserveOut) external pure returns (uint amountOut); function getAmountIn(uint amountOut, uint reserveIn, uint reserveOut) external pure returns (uint amountIn); function getAmountsOut(uint amountIn, address[] calldata path) external view returns (uint[] memory amounts); function getAmountsIn(uint amountOut, address[] calldata path) external view returns (uint[] memory amounts); }
pragma solidity >=0.6.2; import './IUniswapV2Router01.sol'; interface IUniswapV2Router02 is IUniswapV2Router01 { function removeLiquidityETHSupportingFeeOnTransferTokens( address token, uint liquidity, uint amountTokenMin, uint amountETHMin, address to, uint deadline ) external returns (uint amountETH); function removeLiquidityETHWithPermitSupportingFeeOnTransferTokens( address token, uint liquidity, uint amountTokenMin, uint amountETHMin, address to, uint deadline, bool approveMax, uint8 v, bytes32 r, bytes32 s ) external returns (uint amountETH); function swapExactTokensForTokensSupportingFeeOnTransferTokens( uint amountIn, uint amountOutMin, address[] calldata path, address to, uint deadline ) external; function swapExactETHForTokensSupportingFeeOnTransferTokens( uint amountOutMin, address[] calldata path, address to, uint deadline ) external payable; function swapExactTokensForETHSupportingFeeOnTransferTokens( uint amountIn, uint amountOutMin, address[] calldata path, address to, uint deadline ) external; }
{ "remappings": [], "optimizer": { "enabled": true, "runs": 200 }, "evmVersion": "byzantium", "libraries": { "": {} }, "outputSelection": { "*": { "*": [ "evm.bytecode", "evm.deployedBytecode", "abi" ] } } }
Contract Security Audit
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[{"inputs":[],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"staker","type":"address"},{"indexed":false,"internalType":"uint256","name":"mintage","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"developerFund","type":"uint256"}],"name":"Rewards","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"staker","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"StakeDecreased","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"staker","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"StakeIncreased","type":"event"},{"inputs":[],"name":"_totalStaked","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"ape","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"staker","type":"address"}],"name":"calculateRewards","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"claimRewards","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"decreaseStake","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"increaseStake","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"staker","type":"address"}],"name":"lastClaim","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"apeTokenAddress","type":"address"}],"name":"setApeToken","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"staker","type":"address"}],"name":"staked","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalStaked","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"fund","type":"address"}],"name":"upgradeDevelopmentFund","outputs":[],"stateMutability":"nonpayable","type":"function"}]
Contract Creation Code
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Deployed Bytecode
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Multichain Portfolio | 26 Chains
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A contract address hosts a smart contract, which is a set of code stored on the blockchain that runs when predetermined conditions are met. Learn more about addresses in our Knowledge Base.