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Contract Name:
stakingManager
Compiler Version
v0.8.19+commit.7dd6d404
Optimization Enabled:
Yes with 1337 runs
Other Settings:
default evmVersion
Contract Source Code (Solidity Standard Json-Input format)
//SPDX-License-Identifier: Unlicense pragma solidity 0.8.19; import '@openzeppelin/contracts-upgradeable/token/ERC20/IERC20Upgradeable.sol'; import '@openzeppelin/contracts-upgradeable/token/ERC20/utils/SafeERC20Upgradeable.sol'; import '@openzeppelin/contracts-upgradeable/access/OwnableUpgradeable.sol'; contract stakingManager is OwnableUpgradeable { using SafeERC20Upgradeable for IERC20Upgradeable; // Wrappers around ERC20 operations that throw on failure IERC20Upgradeable public stakeToken; // Token to be staked and rewarded address public presaleContract; //presale contract address uint256 public tokensStakedByPresale; //total tokens staked by preSale uint256 public tokensStaked; // Total tokens staked uint256 private lastRewardedBlock; // Last block number the user had their rewards calculated uint256 private accumulatedRewardsPerShare; // Accumulated rewards per share times REWARDS_PRECISION uint256 public rewardTokensPerBlock; // Number of reward tokens minted per block uint256 private constant REWARDS_PRECISION = 1e12; // A big number to perform mul and div operations uint256 public lockedTime; //To lock the tokens in contract for definite time. bool public harvestLock; //To lock the harvest/claim. uint public endBlock; //At this block,the rewards generation will be stopped. uint256 public claimStart; //Users can claim after this time in epoch. // Staking user for a pool struct PoolStaker { uint256 amount; // The tokens quantity the user has staked. uint256 stakedTime; //the time at tokens staked uint256 lastUpdatedBlock; uint256 Harvestedrewards; // The reward tokens quantity the user harvested uint256 rewardDebt; // The amount relative to accumulatedRewardsPerShare the user can't get as reward } // staker address => PoolStaker mapping(address => PoolStaker) public poolStakers; mapping(address => bool) public isBlacklisted; mapping(address => uint) public userLockedRewards; // Events event Deposit(address indexed user, uint256 amount); event Withdraw(address indexed user, uint256 amount); event HarvestRewards(address indexed user, uint256 amount); /// @custom:oz-upgrades-unsafe-allow constructor constructor() { _disableInitializers(); } function __stakingManager_init(address _rewardTokenAddress, address _presale, uint256 _rewardTokensPerBlock, uint _lockTime, uint _endBlock) public initializer { __Ownable_init_unchained(); rewardTokensPerBlock = _rewardTokensPerBlock; stakeToken = IERC20Upgradeable(_rewardTokenAddress); presaleContract = _presale; lockedTime = _lockTime; endBlock = _endBlock; harvestLock = true; } modifier onlyPresale() { require(msg.sender == presaleContract, 'This method is only for presale Contract'); _; } /** * @dev Deposit tokens to the pool */ function deposit(uint256 _amount) external { require(block.number < endBlock, 'staking has been ended'); require(_amount > 0, "Deposit amount can't be zero"); PoolStaker storage staker = poolStakers[msg.sender]; // Update pool stakers harvestRewards(); // Update current staker staker.amount += _amount; staker.rewardDebt = (staker.amount * accumulatedRewardsPerShare) / REWARDS_PRECISION; staker.stakedTime = block.timestamp; staker.lastUpdatedBlock = block.number; // Update pool tokensStaked += _amount; // Deposit tokens emit Deposit(msg.sender, _amount); stakeToken.safeTransferFrom(msg.sender, address(this), _amount); } /** * @dev Deposit tokens to pool by presale contract */ function depositByPresale(address _user, uint256 _amount) external onlyPresale { require(block.number < endBlock, 'staking has been ended'); require(_amount > 0, "Deposit amount can't be zero"); PoolStaker storage staker = poolStakers[_user]; // Update pool stakers _harvestRewards(_user); // Update current staker staker.amount += _amount; staker.rewardDebt = (staker.amount * accumulatedRewardsPerShare) / REWARDS_PRECISION; staker.stakedTime = block.timestamp; // Update pool tokensStaked += _amount; tokensStakedByPresale += _amount; // Deposit tokens emit Deposit(_user, _amount); stakeToken.safeTransferFrom(presaleContract, address(this), _amount); } /** * @dev Withdraw all tokens from existing pool */ function withdraw() external { PoolStaker memory staker = poolStakers[msg.sender]; uint256 amount = staker.amount; require(staker.stakedTime + lockedTime <= block.timestamp && claimStart + lockedTime <= block.timestamp, 'you are not allowed to withdraw before locked Time'); require(amount > 0, "Withdraw amount can't be zero"); // Pay rewards harvestRewards(); //delete staker delete poolStakers[msg.sender]; // Update pool tokensStaked -= amount; // Withdraw tokens emit Withdraw(msg.sender, amount); stakeToken.safeTransfer(msg.sender, amount); } /** * @dev Harvest user rewards */ function harvestRewards() public { _harvestRewards(msg.sender); } /** * @dev Harvest user rewards */ function _harvestRewards(address _user) private { require(!isBlacklisted[_user], 'This Address is Blacklisted'); updatePoolRewards(); PoolStaker storage staker = poolStakers[_user]; uint256 rewardsToHarvest = ((staker.amount * accumulatedRewardsPerShare) / REWARDS_PRECISION) - staker.rewardDebt; if (rewardsToHarvest == 0) { return; } staker.Harvestedrewards += rewardsToHarvest; staker.rewardDebt = (staker.amount * accumulatedRewardsPerShare) / REWARDS_PRECISION; if (!harvestLock) { if (userLockedRewards[_user] > 0) { rewardsToHarvest += userLockedRewards[_user]; userLockedRewards[_user] = 0; } emit HarvestRewards(_user, rewardsToHarvest); stakeToken.safeTransfer(_user, rewardsToHarvest); } else { userLockedRewards[_user] += rewardsToHarvest; } } /** * @dev Update pool's accumulatedRewardsPerShare and lastRewardedBlock */ function updatePoolRewards() private { if (tokensStaked == 0) { lastRewardedBlock = block.number; return; } uint256 blocksSinceLastReward = block.number > endBlock ? endBlock - lastRewardedBlock : block.number - lastRewardedBlock; uint256 rewards = blocksSinceLastReward * rewardTokensPerBlock; accumulatedRewardsPerShare = accumulatedRewardsPerShare + ((rewards * REWARDS_PRECISION) / tokensStaked); lastRewardedBlock = block.number > endBlock ? endBlock : block.number; } /** *@dev To get the number of rewards that user can get */ function getRewards(address _user) public view returns (uint) { if (tokensStaked == 0) { return 0; } uint256 blocksSinceLastReward = block.number > endBlock ? endBlock - lastRewardedBlock : block.number - lastRewardedBlock; uint256 rewards = blocksSinceLastReward * rewardTokensPerBlock; uint256 accCalc = accumulatedRewardsPerShare + ((rewards * REWARDS_PRECISION) / tokensStaked); PoolStaker memory staker = poolStakers[_user]; return ((staker.amount * accCalc) / REWARDS_PRECISION) - staker.rewardDebt + userLockedRewards[_user]; } function setHarvestLock(bool _harvestlock) external onlyOwner { harvestLock = _harvestlock; } function setPresale(address _presale) external onlyOwner { presaleContract = _presale; } function setStakeToken(address _stakeToken) external onlyOwner { stakeToken = IERC20Upgradeable(_stakeToken); } function setLockedTime(uint _time) external onlyOwner { lockedTime = _time; } function setEndBlock(uint _endBlock) external onlyOwner { endBlock = _endBlock; } function setClaimStart(uint _claimStart) external onlyOwner { claimStart = _claimStart; } function setRewardTokensPerBlock(uint256 _rewardTokensPerBlock) external onlyOwner { rewardTokensPerBlock = _rewardTokensPerBlock; } /** * @dev To add users to blacklist which restricts blacklisted users from claiming * @param _usersToBlacklist addresses of the users */ function blacklistUsers(address[] calldata _usersToBlacklist) external onlyOwner { for (uint256 i = 0; i < _usersToBlacklist.length; i++) { isBlacklisted[_usersToBlacklist[i]] = true; } } /** * @dev To remove users from blacklist which restricts blacklisted users from claiming * @param _userToRemoveFromBlacklist addresses of the users */ function removeFromBlacklist(address[] calldata _userToRemoveFromBlacklist) external onlyOwner { for (uint256 i = 0; i < _userToRemoveFromBlacklist.length; i++) { isBlacklisted[_userToRemoveFromBlacklist[i]] = false; } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.7.0) (access/Ownable.sol) pragma solidity ^0.8.0; import "../utils/ContextUpgradeable.sol"; import "../proxy/utils/Initializable.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. */ abstract contract OwnableUpgradeable is Initializable, ContextUpgradeable { address private _owner; event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); /** * @dev Initializes the contract setting the deployer as the initial owner. */ function __Ownable_init() internal onlyInitializing { __Ownable_init_unchained(); } function __Ownable_init_unchained() internal onlyInitializing { _transferOwnership(_msgSender()); } /** * @dev Throws if called by any account other than the owner. */ modifier onlyOwner() { _checkOwner(); _; } /** * @dev Returns the address of the current owner. */ function owner() public view virtual returns (address) { return _owner; } /** * @dev Throws if the sender is not the owner. */ function _checkOwner() internal view virtual { 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 { _transferOwnership(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"); _transferOwnership(newOwner); } /** * @dev Transfers ownership of the contract to a new account (`newOwner`). * Internal function without access restriction. */ function _transferOwnership(address newOwner) internal virtual { address oldOwner = _owner; _owner = newOwner; emit OwnershipTransferred(oldOwner, newOwner); } /** * @dev This empty reserved space is put in place to allow future versions to add new * variables without shifting down storage in the inheritance chain. * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps */ uint256[49] private __gap; }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.7.0) (proxy/utils/Initializable.sol) pragma solidity ^0.8.2; import "../../utils/AddressUpgradeable.sol"; /** * @dev This is a base contract to aid in writing upgradeable contracts, or any kind of contract that will be deployed * behind a proxy. Since proxied contracts do not make use of a constructor, it's common to move constructor logic to an * external initializer function, usually called `initialize`. It then becomes necessary to protect this initializer * function so it can only be called once. The {initializer} modifier provided by this contract will have this effect. * * The initialization functions use a version number. Once a version number is used, it is consumed and cannot be * reused. This mechanism prevents re-execution of each "step" but allows the creation of new initialization steps in * case an upgrade adds a module that needs to be initialized. * * For example: * * [.hljs-theme-light.nopadding] * ``` * contract MyToken is ERC20Upgradeable { * function initialize() initializer public { * __ERC20_init("MyToken", "MTK"); * } * } * contract MyTokenV2 is MyToken, ERC20PermitUpgradeable { * function initializeV2() reinitializer(2) public { * __ERC20Permit_init("MyToken"); * } * } * ``` * * TIP: To avoid leaving the proxy in an uninitialized state, the initializer function should be called as early as * possible by providing the encoded function call as the `_data` argument to {ERC1967Proxy-constructor}. * * CAUTION: When used with inheritance, manual care must be taken to not invoke a parent initializer twice, or to ensure * that all initializers are idempotent. This is not verified automatically as constructors are by Solidity. * * [CAUTION] * ==== * Avoid leaving a contract uninitialized. * * An uninitialized contract can be taken over by an attacker. This applies to both a proxy and its implementation * contract, which may impact the proxy. To prevent the implementation contract from being used, you should invoke * the {_disableInitializers} function in the constructor to automatically lock it when it is deployed: * * [.hljs-theme-light.nopadding] * ``` * /// @custom:oz-upgrades-unsafe-allow constructor * constructor() { * _disableInitializers(); * } * ``` * ==== */ abstract contract Initializable { /** * @dev Indicates that the contract has been initialized. * @custom:oz-retyped-from bool */ uint8 private _initialized; /** * @dev Indicates that the contract is in the process of being initialized. */ bool private _initializing; /** * @dev Triggered when the contract has been initialized or reinitialized. */ event Initialized(uint8 version); /** * @dev A modifier that defines a protected initializer function that can be invoked at most once. In its scope, * `onlyInitializing` functions can be used to initialize parent contracts. Equivalent to `reinitializer(1)`. */ modifier initializer() { bool isTopLevelCall = !_initializing; require( (isTopLevelCall && _initialized < 1) || (!AddressUpgradeable.isContract(address(this)) && _initialized == 1), "Initializable: contract is already initialized" ); _initialized = 1; if (isTopLevelCall) { _initializing = true; } _; if (isTopLevelCall) { _initializing = false; emit Initialized(1); } } /** * @dev A modifier that defines a protected reinitializer function that can be invoked at most once, and only if the * contract hasn't been initialized to a greater version before. In its scope, `onlyInitializing` functions can be * used to initialize parent contracts. * * `initializer` is equivalent to `reinitializer(1)`, so a reinitializer may be used after the original * initialization step. This is essential to configure modules that are added through upgrades and that require * initialization. * * Note that versions can jump in increments greater than 1; this implies that if multiple reinitializers coexist in * a contract, executing them in the right order is up to the developer or operator. */ modifier reinitializer(uint8 version) { require(!_initializing && _initialized < version, "Initializable: contract is already initialized"); _initialized = version; _initializing = true; _; _initializing = false; emit Initialized(version); } /** * @dev Modifier to protect an initialization function so that it can only be invoked by functions with the * {initializer} and {reinitializer} modifiers, directly or indirectly. */ modifier onlyInitializing() { require(_initializing, "Initializable: contract is not initializing"); _; } /** * @dev Locks the contract, preventing any future reinitialization. This cannot be part of an initializer call. * Calling this in the constructor of a contract will prevent that contract from being initialized or reinitialized * to any version. It is recommended to use this to lock implementation contracts that are designed to be called * through proxies. */ function _disableInitializers() internal virtual { require(!_initializing, "Initializable: contract is initializing"); if (_initialized < type(uint8).max) { _initialized = type(uint8).max; emit Initialized(type(uint8).max); } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/draft-IERC20Permit.sol) pragma solidity ^0.8.0; /** * @dev Interface of the ERC20 Permit extension allowing approvals to be made via signatures, as defined in * https://eips.ethereum.org/EIPS/eip-2612[EIP-2612]. * * Adds the {permit} method, which can be used to change an account's ERC20 allowance (see {IERC20-allowance}) by * presenting a message signed by the account. By not relying on {IERC20-approve}, the token holder account doesn't * need to send a transaction, and thus is not required to hold Ether at all. */ interface IERC20PermitUpgradeable { /** * @dev Sets `value` as the allowance of `spender` over ``owner``'s tokens, * given ``owner``'s signed approval. * * IMPORTANT: The same issues {IERC20-approve} has related to transaction * ordering also apply here. * * Emits an {Approval} event. * * Requirements: * * - `spender` cannot be the zero address. * - `deadline` must be a timestamp in the future. * - `v`, `r` and `s` must be a valid `secp256k1` signature from `owner` * over the EIP712-formatted function arguments. * - the signature must use ``owner``'s current nonce (see {nonces}). * * For more information on the signature format, see the * https://eips.ethereum.org/EIPS/eip-2612#specification[relevant EIP * section]. */ function permit( address owner, address spender, uint256 value, uint256 deadline, uint8 v, bytes32 r, bytes32 s ) external; /** * @dev Returns the current nonce for `owner`. This value must be * included whenever a signature is generated for {permit}. * * Every successful call to {permit} increases ``owner``'s nonce by one. This * prevents a signature from being used multiple times. */ function nonces(address owner) external view returns (uint256); /** * @dev Returns the domain separator used in the encoding of the signature for {permit}, as defined by {EIP712}. */ // solhint-disable-next-line func-name-mixedcase function DOMAIN_SEPARATOR() external view returns (bytes32); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.6.0) (token/ERC20/IERC20.sol) pragma solidity ^0.8.0; /** * @dev Interface of the ERC20 standard as defined in the EIP. */ interface IERC20Upgradeable { /** * @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); /** * @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 `to`. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transfer(address to, 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 `from` to `to` 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 from, address to, uint256 amount ) external returns (bool); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.7.0) (token/ERC20/utils/SafeERC20.sol) pragma solidity ^0.8.0; import "../IERC20Upgradeable.sol"; import "../extensions/draft-IERC20PermitUpgradeable.sol"; import "../../../utils/AddressUpgradeable.sol"; /** * @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 SafeERC20Upgradeable { using AddressUpgradeable for address; function safeTransfer( IERC20Upgradeable token, address to, uint256 value ) internal { _callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value)); } function safeTransferFrom( IERC20Upgradeable 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( IERC20Upgradeable 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' 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( IERC20Upgradeable token, address spender, uint256 value ) internal { uint256 newAllowance = token.allowance(address(this), spender) + value; _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance)); } function safeDecreaseAllowance( IERC20Upgradeable token, address spender, uint256 value ) internal { unchecked { uint256 oldAllowance = token.allowance(address(this), spender); require(oldAllowance >= value, "SafeERC20: decreased allowance below zero"); uint256 newAllowance = oldAllowance - value; _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance)); } } function safePermit( IERC20PermitUpgradeable token, address owner, address spender, uint256 value, uint256 deadline, uint8 v, bytes32 r, bytes32 s ) internal { uint256 nonceBefore = token.nonces(owner); token.permit(owner, spender, value, deadline, v, r, s); uint256 nonceAfter = token.nonces(owner); require(nonceAfter == nonceBefore + 1, "SafeERC20: permit did not succeed"); } /** * @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(IERC20Upgradeable 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 require(abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed"); } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.7.0) (utils/Address.sol) pragma solidity ^0.8.1; /** * @dev Collection of functions related to the address type */ library AddressUpgradeable { /** * @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 * ==== * * [IMPORTANT] * ==== * You shouldn't rely on `isContract` to protect against flash loan attacks! * * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract * constructor. * ==== */ function isContract(address account) internal view returns (bool) { // This method relies on extcodesize/address.code.length, which returns 0 // for contracts in construction, since the code is only stored at the end // of the constructor execution. return account.code.length > 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"); (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"); (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"); (bool success, bytes memory returndata) = target.staticcall(data); return verifyCallResult(success, returndata, errorMessage); } /** * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the * revert reason using the provided one. * * _Available since v4.3._ */ function verifyCallResult( bool success, bytes memory returndata, string memory errorMessage ) internal 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 /// @solidity memory-safe-assembly assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert(errorMessage); } } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (utils/Context.sol) pragma solidity ^0.8.0; import "../proxy/utils/Initializable.sol"; /** * @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 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 ContextUpgradeable is Initializable { function __Context_init() internal onlyInitializing { } function __Context_init_unchained() internal onlyInitializing { } function _msgSender() internal view virtual returns (address) { return msg.sender; } function _msgData() internal view virtual returns (bytes calldata) { return msg.data; } /** * @dev This empty reserved space is put in place to allow future versions to add new * variables without shifting down storage in the inheritance chain. * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps */ uint256[50] private __gap; }
{ "optimizer": { "enabled": true, "runs": 1337 }, "outputSelection": { "*": { "*": [ "evm.bytecode", "evm.deployedBytecode", "devdoc", "userdoc", "metadata", "abi" ] } }, "metadata": { "useLiteralContent": true }, "libraries": {} }
Contract Security Audit
- No Contract Security Audit Submitted- Submit Audit Here
[{"inputs":[],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"user","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"Deposit","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"user","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"HarvestRewards","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint8","name":"version","type":"uint8"}],"name":"Initialized","type":"event"},{"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":"user","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"Withdraw","type":"event"},{"inputs":[{"internalType":"address","name":"_rewardTokenAddress","type":"address"},{"internalType":"address","name":"_presale","type":"address"},{"internalType":"uint256","name":"_rewardTokensPerBlock","type":"uint256"},{"internalType":"uint256","name":"_lockTime","type":"uint256"},{"internalType":"uint256","name":"_endBlock","type":"uint256"}],"name":"__stakingManager_init","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address[]","name":"_usersToBlacklist","type":"address[]"}],"name":"blacklistUsers","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"claimStart","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"_amount","type":"uint256"}],"name":"deposit","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_user","type":"address"},{"internalType":"uint256","name":"_amount","type":"uint256"}],"name":"depositByPresale","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"endBlock","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_user","type":"address"}],"name":"getRewards","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"harvestLock","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"harvestRewards","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"isBlacklisted","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"lockedTime","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"poolStakers","outputs":[{"internalType":"uint256","name":"amount","type":"uint256"},{"internalType":"uint256","name":"stakedTime","type":"uint256"},{"internalType":"uint256","name":"lastUpdatedBlock","type":"uint256"},{"internalType":"uint256","name":"Harvestedrewards","type":"uint256"},{"internalType":"uint256","name":"rewardDebt","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"presaleContract","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address[]","name":"_userToRemoveFromBlacklist","type":"address[]"}],"name":"removeFromBlacklist","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"rewardTokensPerBlock","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"_claimStart","type":"uint256"}],"name":"setClaimStart","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_endBlock","type":"uint256"}],"name":"setEndBlock","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bool","name":"_harvestlock","type":"bool"}],"name":"setHarvestLock","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_time","type":"uint256"}],"name":"setLockedTime","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_presale","type":"address"}],"name":"setPresale","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_rewardTokensPerBlock","type":"uint256"}],"name":"setRewardTokensPerBlock","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_stakeToken","type":"address"}],"name":"setStakeToken","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"stakeToken","outputs":[{"internalType":"contract IERC20Upgradeable","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"tokensStaked","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"tokensStakedByPresale","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":"","type":"address"}],"name":"userLockedRewards","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"withdraw","outputs":[],"stateMutability":"nonpayable","type":"function"}]
Contract Creation Code
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Multichain Portfolio | 30 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.