Contract 0x548c30b0af3ce6d96f1a63afc05f0fb66495179f

 
Txn Hash Method
Block
From
To
Value [Txn Fee]
0xeded0596953756507ef12fcd8d356adedc501f20d4fff0659c3bc0cd32e5e7edDeposit276941982022-10-01 2:49:331 hr 13 mins ago0x0e9176f03f1b8094f7d694775b65f4dba6607dfe IN  PlutusDAO: DPX Depositor0 ETH0.0000392
0x13af29296d37060fb4863bc020d569629d688207206d4f200fcce73347b3334eDeposit276766562022-09-30 23:18:024 hrs 45 mins ago0xc3bbcf4260b204ed8d87e62629bc979a2ccc3161 IN  PlutusDAO: DPX Depositor0 ETH0.00004697
0x1f4c0bf58678931343a004de3c721ab1de081f89b60a099890de8e9422ab5c7dDeposit276694642022-09-30 21:43:016 hrs 20 mins ago0x18accc7aa774ac64d5ee04588f97f4c2834c1d5b IN  PlutusDAO: DPX Depositor0 ETH0.00005003
0xdd62d7d710a69d6be2d34f83db164463e71c75156b7f7c902cede6f28c987670Deposit276670312022-09-30 21:18:016 hrs 45 mins ago0x642f20f5619799e19cefa6b29d37d5947db4ca38 IN  PlutusDAO: DPX Depositor0 ETH0.0000513
0xad8e88a97b56009a9946e4d9ca7930a6b04da6df11ad4fde30b50e1bb438a151Deposit276519652022-09-30 18:51:229 hrs 11 mins ago0x2659f6f81ca367d12342af32d8e29b6afab1027a IN  PlutusDAO: DPX Depositor0 ETH0.00005453
0xf6ce316d29214dc86cb9bbc484d03373d0bf8534d2ddfe3a59709c5765c30a7eDeposit276030782022-09-30 13:05:1714 hrs 58 mins ago0x161d9b5d6e3ed8d9c1d36a7caf971901c60b9222 IN  PlutusDAO: DPX Depositor0 ETH0.0000461
0xc26164cfb92f95b375422fc0e8d948793d17e1376ccffd6db47bea22c121b825Deposit275799702022-09-30 10:26:2717 hrs 36 mins ago0x07c5f8fab827512115c4e3b7d81ab1ba3629228d IN  PlutusDAO: DPX Depositor0 ETH0.0000399
0xd81b8278f82d416a38e290d5f4926afcf734bb16a40744b60be2b6a6e77a9949Deposit275042832022-09-30 1:27:391 day 2 hrs ago0x1de23363bcaed13fda52378c47d332f1ce0e9f3d IN  PlutusDAO: DPX Depositor0 ETH0.00004305
0xe3ed287dff35e6f28a6f8a1226ed1d5a0ef73d45a2948f2d886e0ad2805862f0Deposit274337612022-09-29 14:28:291 day 13 hrs ago0xe87a10d5b212d169ccbc9a50cf5e23dd3da27cb6 IN  PlutusDAO: DPX Depositor0 ETH0.00053771
0x2bd6b49baf49c092fc827d05050b2a41d3bf55452ce17c83652193ceb451bd2dDeposit274270372022-09-29 13:53:141 day 14 hrs ago0x6621990c72986bb1aedee6bd8cd5fedbf5eaa89a IN  PlutusDAO: DPX Depositor0 ETH0.00004435
0x118ca0d1f3308f4c32260b23ac7c9f37a3e110707df577eba6f448fd03c1bfb5Deposit274237842022-09-29 13:37:541 day 14 hrs ago0x1b17bbb9b525421e22f89d96b5a650798e7286c4 IN  PlutusDAO: DPX Depositor0 ETH0.00004315
0x72f32149e4e71111b00d0f5e0f4e24eb226db08954f67071439a38f5e27f09d3Deposit273903872022-09-29 9:55:211 day 18 hrs ago0x133d93566f9699b3af46fe150daa8a67a9563ed6 IN  PlutusDAO: DPX Depositor0 ETH0.00003941
0x036ce36dda5f184be99d6e5b09d1d7448e8ae8b08be989f64ff1e61555ef3796Deposit273807002022-09-29 8:56:061 day 19 hrs ago0x2f15a03e13aa8bcfa6dd84089a36603e9abf225c IN  PlutusDAO: DPX Depositor0 ETH0.00003993
0x52bb1a0b816ac19e9a34543c81076f7ea3a06028ab2a20aeb7cb58f520216327Deposit273040172022-09-29 0:17:322 days 3 hrs ago0xf9034fb27f395287276ddeecb3605d31e5603f45 IN  PlutusDAO: DPX Depositor0 ETH0.00004268
0xbdfa37e11040408fbeec1318fd0047e4373d89702562a68ce1e9e78ec69de9f0Deposit272967402022-09-28 22:50:342 days 5 hrs ago0x6a7dbffd83c6808651223efcaf7ea88161290e2b IN  PlutusDAO: DPX Depositor0 ETH0.00004742
0x250b9fd02408a0efaacffade12d7c05ed8d6b2c526835d89f28e7aa6b7fa4f7eDeposit272940472022-09-28 22:12:112 days 5 hrs ago0xfdf461de7af09441fe2312eb33d023ac58df6d56 IN  PlutusDAO: DPX Depositor0 ETH0.00004798
0x35e8553fc38859e14ca9dee699354b959dd121c672104d506b7bca1cf330e03bDeposit272933672022-09-28 22:03:122 days 6 hrs ago0x5345462544ed763639519376c298e939228dd1f4 IN  PlutusDAO: DPX Depositor0 ETH0.00004672
0xf5ba3053e49bf21d74e3d303d19d28f18125192424ab7bbace47f035211922beDeposit272855302022-09-28 20:39:372 days 7 hrs ago0x133d93566f9699b3af46fe150daa8a67a9563ed6 IN  PlutusDAO: DPX Depositor0 ETH0.00005418
0x7ea2c9aa7aec473ca4f525f3562b181964fd0c9226359f370f5cddcb79c539afDeposit272643712022-09-28 17:30:082 days 10 hrs ago0x7a125bc6c77c295127a9102116d4bc1b58729428 IN  PlutusDAO: DPX Depositor0 ETH0.00004982
0xee599efc79b8a80c05b5a6a59fa75d556d357fea3e614040774076f3d723238eDeposit272530132022-09-28 16:06:052 days 11 hrs ago0x2738ddb13d1ba774226ed00d16fa2d6818f2ddc8 IN  PlutusDAO: DPX Depositor0 ETH0.0000489
0x062a6f080d26ec0a33b7af1209bdb973f5be2ee7a0a5ebec07e577682bced3a5Deposit271765042022-09-28 9:32:512 days 18 hrs ago0xe822ecac55a3a20bb4b24cdd83401eaa73dd3bb4 IN  PlutusDAO: DPX Depositor0 ETH0.00004279
0x87fa93e6f2a910ccc4edf2b2a9043fa01fd96d37514644fc4f0b766da3093132Deposit271171002022-09-28 4:15:102 days 23 hrs ago0xc9d897985bdd29ac562536c6686b897099288b5b IN  PlutusDAO: DPX Depositor0 ETH0.00004078
0x8fb2fa355b1aebaed6cf22ed47bcee8876124da9b90fcab3e20160c62d651682Deposit270815222022-09-28 0:52:273 days 3 hrs ago0x0a53d9586dd052a06fca7649a02b973cc164c1b4 IN  PlutusDAO: DPX Depositor0 ETH0.00003949
0xf5713a9df785baaca6b23dead4650317a1e4756cbbfad0b5ddcd314ee24ba81bDeposit270439112022-09-27 18:25:203 days 9 hrs ago0x0edcaeb7270005f31e51790ba2c5c574ff24dec6 IN  PlutusDAO: DPX Depositor0 ETH0.00007296
0x59ff5ddac539a74b86982358b855f5aef3adf37db57eb97373e2f8d19d10428bDeposit270307592022-09-27 16:44:233 days 11 hrs ago0xf3d9281fa183b74f32b96e1c5244596045f4ede8 IN  PlutusDAO: DPX Depositor0 ETH0.00007958
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OVERVIEW

Plutus DPX Depositor.

Latest 25 internal transaction
Parent Txn Hash Block From To Value
0xeded0596953756507ef12fcd8d356adedc501f20d4fff0659c3bc0cd32e5e7ed276941982022-10-01 2:49:331 hr 13 mins ago PlutusDAO: DPX Depositor Plutus DAO: plsDPX Token0 ETH
0xeded0596953756507ef12fcd8d356adedc501f20d4fff0659c3bc0cd32e5e7ed276941982022-10-01 2:49:331 hr 13 mins ago PlutusDAO: DPX Depositor 0x6de5bec59ed2575a799f2ac0a0aeaaaf59e61c3d0 ETH
0xeded0596953756507ef12fcd8d356adedc501f20d4fff0659c3bc0cd32e5e7ed276941982022-10-01 2:49:331 hr 13 mins ago PlutusDAO: DPX DepositorDopex: DPX Token0 ETH
0x13af29296d37060fb4863bc020d569629d688207206d4f200fcce73347b3334e276766562022-09-30 23:18:024 hrs 45 mins ago PlutusDAO: DPX Depositor Plutus DAO: plsDPX Token0 ETH
0x13af29296d37060fb4863bc020d569629d688207206d4f200fcce73347b3334e276766562022-09-30 23:18:024 hrs 45 mins ago PlutusDAO: DPX Depositor 0x6de5bec59ed2575a799f2ac0a0aeaaaf59e61c3d0 ETH
0x13af29296d37060fb4863bc020d569629d688207206d4f200fcce73347b3334e276766562022-09-30 23:18:024 hrs 45 mins ago PlutusDAO: DPX DepositorDopex: DPX Token0 ETH
0x1f4c0bf58678931343a004de3c721ab1de081f89b60a099890de8e9422ab5c7d276694642022-09-30 21:43:016 hrs 20 mins ago PlutusDAO: DPX Depositor Plutus DAO: plsDPX Token0 ETH
0x1f4c0bf58678931343a004de3c721ab1de081f89b60a099890de8e9422ab5c7d276694642022-09-30 21:43:016 hrs 20 mins ago PlutusDAO: DPX Depositor 0x6de5bec59ed2575a799f2ac0a0aeaaaf59e61c3d0 ETH
0x1f4c0bf58678931343a004de3c721ab1de081f89b60a099890de8e9422ab5c7d276694642022-09-30 21:43:016 hrs 20 mins ago PlutusDAO: DPX DepositorDopex: DPX Token0 ETH
0xdd62d7d710a69d6be2d34f83db164463e71c75156b7f7c902cede6f28c987670276670312022-09-30 21:18:016 hrs 45 mins ago PlutusDAO: DPX Depositor Plutus DAO: plsDPX Token0 ETH
0xdd62d7d710a69d6be2d34f83db164463e71c75156b7f7c902cede6f28c987670276670312022-09-30 21:18:016 hrs 45 mins ago PlutusDAO: DPX Depositor 0x6de5bec59ed2575a799f2ac0a0aeaaaf59e61c3d0 ETH
0xdd62d7d710a69d6be2d34f83db164463e71c75156b7f7c902cede6f28c987670276670312022-09-30 21:18:016 hrs 45 mins ago PlutusDAO: DPX DepositorDopex: DPX Token0 ETH
0xad8e88a97b56009a9946e4d9ca7930a6b04da6df11ad4fde30b50e1bb438a151276519652022-09-30 18:51:229 hrs 11 mins ago PlutusDAO: DPX Depositor Plutus DAO: plsDPX Token0 ETH
0xad8e88a97b56009a9946e4d9ca7930a6b04da6df11ad4fde30b50e1bb438a151276519652022-09-30 18:51:229 hrs 11 mins ago PlutusDAO: DPX Depositor 0x6de5bec59ed2575a799f2ac0a0aeaaaf59e61c3d0 ETH
0xad8e88a97b56009a9946e4d9ca7930a6b04da6df11ad4fde30b50e1bb438a151276519652022-09-30 18:51:229 hrs 11 mins ago PlutusDAO: DPX DepositorDopex: DPX Token0 ETH
0xf6ce316d29214dc86cb9bbc484d03373d0bf8534d2ddfe3a59709c5765c30a7e276030782022-09-30 13:05:1714 hrs 58 mins ago PlutusDAO: DPX Depositor Plutus DAO: plsDPX Token0 ETH
0xf6ce316d29214dc86cb9bbc484d03373d0bf8534d2ddfe3a59709c5765c30a7e276030782022-09-30 13:05:1714 hrs 58 mins ago PlutusDAO: DPX Depositor 0x6de5bec59ed2575a799f2ac0a0aeaaaf59e61c3d0 ETH
0xf6ce316d29214dc86cb9bbc484d03373d0bf8534d2ddfe3a59709c5765c30a7e276030782022-09-30 13:05:1714 hrs 58 mins ago PlutusDAO: DPX DepositorDopex: DPX Token0 ETH
0xc26164cfb92f95b375422fc0e8d948793d17e1376ccffd6db47bea22c121b825275799702022-09-30 10:26:2717 hrs 36 mins ago PlutusDAO: DPX Depositor Plutus DAO: plsDPX Token0 ETH
0xc26164cfb92f95b375422fc0e8d948793d17e1376ccffd6db47bea22c121b825275799702022-09-30 10:26:2717 hrs 36 mins ago PlutusDAO: DPX Depositor 0x6de5bec59ed2575a799f2ac0a0aeaaaf59e61c3d0 ETH
0xc26164cfb92f95b375422fc0e8d948793d17e1376ccffd6db47bea22c121b825275799702022-09-30 10:26:2717 hrs 36 mins ago PlutusDAO: DPX DepositorDopex: DPX Token0 ETH
0xd81b8278f82d416a38e290d5f4926afcf734bb16a40744b60be2b6a6e77a9949275042832022-09-30 1:27:391 day 2 hrs ago PlutusDAO: DPX Depositor Plutus DAO: plsDPX Token0 ETH
0xd81b8278f82d416a38e290d5f4926afcf734bb16a40744b60be2b6a6e77a9949275042832022-09-30 1:27:391 day 2 hrs ago PlutusDAO: DPX Depositor 0x6de5bec59ed2575a799f2ac0a0aeaaaf59e61c3d0 ETH
0xd81b8278f82d416a38e290d5f4926afcf734bb16a40744b60be2b6a6e77a9949275042832022-09-30 1:27:391 day 2 hrs ago PlutusDAO: DPX DepositorDopex: DPX Token0 ETH
0xe3ed287dff35e6f28a6f8a1226ed1d5a0ef73d45a2948f2d886e0ad2805862f0274337612022-09-29 14:28:291 day 13 hrs ago PlutusDAO: DPX Depositor Plutus DAO: plsDPX Token0 ETH
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Contract Source Code Verified (Exact Match)

Contract Name:
DpxDepositorV2

Compiler Version
v0.8.9+commit.e5eed63a

Optimization Enabled:
Yes with 1000 runs

Other Settings:
default evmVersion

Contract Source Code (Solidity Standard Json-Input format)

File 1 of 11 : DpxDepositorV2.sol
// SPDX-License-Identifier: MIT
pragma solidity 0.8.9;

import '@openzeppelin/contracts/security/Pausable.sol';
import '@openzeppelin/contracts/token/ERC20/IERC20.sol';
import '@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol';
import '@openzeppelin/contracts/access/Ownable.sol';
import { IStaker } from './interfaces.sol';
import '../interfaces/ITokenMinter.sol';
import { IWhitelist } from '../Whitelist.sol';

contract DpxDepositorV2 is Ownable, Pausable {
  using SafeERC20 for IERC20;

  IERC20 public immutable dpx;
  IERC20 public immutable escrow;
  address public immutable minter; // plsDPX
  address public immutable staker;

  IWhitelist public whitelist;

  constructor(
    address _dpx,
    address _escrow,
    address _staker,
    address _minter
  ) {
    dpx = IERC20(_dpx);
    escrow = IERC20(_escrow);
    staker = _staker;
    minter = _minter;
    _pause();
  }

  /**
   * Deposit asset for plsAsset
   */
  function deposit(uint256 _amount) public whenNotPaused {
    _isEligibleSender();
    _deposit(msg.sender, _amount);
  }

  function depositAll() external {
    deposit(dpx.balanceOf(msg.sender));
  }

  /** PRIVATE FUNCTIONS */
  function _deposit(address _user, uint256 _amount) private {
    if (_amount == 0) revert ZERO_AMOUNT();

    dpx.safeTransferFrom(_user, staker, _amount);
    IStaker(staker).stake(_amount);
    ITokenMinter(minter).mint(_user, _amount);

    emit Deposited(_user, _amount);
  }

  function _isEligibleSender() private view {
    if (msg.sender != tx.origin && whitelist.isWhitelisted(msg.sender) == false) revert UNAUTHORIZED();
  }

  /** OWNER FUNCTIONS */
  function setWhitelist(address _whitelist) external onlyOwner {
    emit WhitelistUpdated(_whitelist, address(whitelist));
    whitelist = IWhitelist(_whitelist);
  }

  /**
    Retrieve stuck funds
   */
  function retrieve(IERC20 token) external onlyOwner {
    if ((address(this).balance) != 0) {
      payable(owner()).transfer(address(this).balance);
    }

    token.transfer(owner(), token.balanceOf(address(this)));
  }

  function setPaused(bool _pauseContract) external onlyOwner {
    if (_pauseContract) {
      _pause();
    } else {
      _unpause();
    }
  }

  event WhitelistUpdated(address _new, address _old);
  event Deposited(address indexed _user, uint256 _amount);

  error ZERO_AMOUNT();
  error UNAUTHORIZED();
}

File 2 of 11 : Pausable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (security/Pausable.sol)

pragma solidity ^0.8.0;

import "../utils/Context.sol";

/**
 * @dev Contract module which allows children to implement an emergency stop
 * mechanism that can be triggered by an authorized account.
 *
 * This module is used through inheritance. It will make available the
 * modifiers `whenNotPaused` and `whenPaused`, which can be applied to
 * the functions of your contract. Note that they will not be pausable by
 * simply including this module, only once the modifiers are put in place.
 */
abstract contract Pausable is Context {
    /**
     * @dev Emitted when the pause is triggered by `account`.
     */
    event Paused(address account);

    /**
     * @dev Emitted when the pause is lifted by `account`.
     */
    event Unpaused(address account);

    bool private _paused;

    /**
     * @dev Initializes the contract in unpaused state.
     */
    constructor() {
        _paused = false;
    }

    /**
     * @dev Modifier to make a function callable only when the contract is not paused.
     *
     * Requirements:
     *
     * - The contract must not be paused.
     */
    modifier whenNotPaused() {
        _requireNotPaused();
        _;
    }

    /**
     * @dev Modifier to make a function callable only when the contract is paused.
     *
     * Requirements:
     *
     * - The contract must be paused.
     */
    modifier whenPaused() {
        _requirePaused();
        _;
    }

    /**
     * @dev Returns true if the contract is paused, and false otherwise.
     */
    function paused() public view virtual returns (bool) {
        return _paused;
    }

    /**
     * @dev Throws if the contract is paused.
     */
    function _requireNotPaused() internal view virtual {
        require(!paused(), "Pausable: paused");
    }

    /**
     * @dev Throws if the contract is not paused.
     */
    function _requirePaused() internal view virtual {
        require(paused(), "Pausable: not paused");
    }

    /**
     * @dev Triggers stopped state.
     *
     * Requirements:
     *
     * - The contract must not be paused.
     */
    function _pause() internal virtual whenNotPaused {
        _paused = true;
        emit Paused(_msgSender());
    }

    /**
     * @dev Returns to normal state.
     *
     * Requirements:
     *
     * - The contract must be paused.
     */
    function _unpause() internal virtual whenPaused {
        _paused = false;
        emit Unpaused(_msgSender());
    }
}

File 3 of 11 : IERC20.sol
// 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 IERC20 {
    /**
     * @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);
}

File 4 of 11 : SafeERC20.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (token/ERC20/utils/SafeERC20.sol)

pragma solidity ^0.8.0;

import "../IERC20.sol";
import "../extensions/draft-IERC20Permit.sol";
import "../../../utils/Address.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 SafeERC20 {
    using Address for address;

    function safeTransfer(
        IERC20 token,
        address to,
        uint256 value
    ) internal {
        _callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value));
    }

    function safeTransferFrom(
        IERC20 token,
        address from,
        address to,
        uint256 value
    ) internal {
        _callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value));
    }

    /**
     * @dev Deprecated. This function has issues similar to the ones found in
     * {IERC20-approve}, and its usage is discouraged.
     *
     * Whenever possible, use {safeIncreaseAllowance} and
     * {safeDecreaseAllowance} instead.
     */
    function safeApprove(
        IERC20 token,
        address spender,
        uint256 value
    ) internal {
        // safeApprove should only be called when setting an initial allowance,
        // or when resetting it to zero. To increase and decrease it, use
        // 'safeIncreaseAllowance' and 'safeDecreaseAllowance'
        require(
            (value == 0) || (token.allowance(address(this), spender) == 0),
            "SafeERC20: approve from non-zero to non-zero allowance"
        );
        _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value));
    }

    function safeIncreaseAllowance(
        IERC20 token,
        address spender,
        uint256 value
    ) internal {
        uint256 newAllowance = token.allowance(address(this), spender) + value;
        _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
    }

    function safeDecreaseAllowance(
        IERC20 token,
        address spender,
        uint256 value
    ) internal {
        unchecked {
            uint256 oldAllowance = token.allowance(address(this), spender);
            require(oldAllowance >= value, "SafeERC20: decreased allowance below zero");
            uint256 newAllowance = oldAllowance - value;
            _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
        }
    }

    function safePermit(
        IERC20Permit 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(IERC20 token, bytes memory data) private {
        // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since
        // we're implementing it ourselves. We use {Address.functionCall} to perform this call, which verifies that
        // the target address contains contract code and also asserts for success in the low-level call.

        bytes memory returndata = address(token).functionCall(data, "SafeERC20: low-level call failed");
        if (returndata.length > 0) {
            // Return data is optional
            require(abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed");
        }
    }
}

File 5 of 11 : Ownable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (access/Ownable.sol)

pragma solidity ^0.8.0;

import "../utils/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.
 */
abstract 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() {
        _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);
    }
}

File 6 of 11 : interfaces.sol
// SPDX-License-Identifier: MIT
pragma solidity 0.8.9;

// IDPXVotingEscrow v1.0.0
interface IDPXVotingEscrow {
  function get_last_user_slope(address addr) external view returns (int128);

  function user_point_history__ts(address _addr, uint256 _idx) external view returns (uint256);

  function locked__end(address _addr) external view returns (uint256);

  function checkpoint() external;

  function deposit_for(address _addr, uint256 _value) external;

  function create_lock(uint256 _value, uint256 _unlock_time) external;

  function increase_amount(uint256 _value) external;

  function increase_unlock_time(uint256 _unlock_time) external;

  function withdraw() external;

  function balanceOf(address addr) external view returns (uint256);

  function balanceOfAtT(address addr, uint256 _t) external view returns (uint256);

  function balanceOfAt(address addr, uint256 _block) external view returns (uint256);

  function totalSupply() external view returns (uint256);

  function totalSupplyAtT(uint256 t) external view returns (uint256);

  function totalSupplyAt(uint256 _block) external view returns (uint256);

  function token() external view returns (address);

  function supply() external view returns (uint256);

  function locked(address addr) external view returns (int128 amount, uint256 end);

  function epoch() external view returns (uint256);

  function point_history(uint256 arg0)
    external
    view
    returns (
      int128 bias,
      int128 slope,
      uint256 ts,
      uint256 blk
    );

  function user_point_history(address arg0, uint256 arg1)
    external
    view
    returns (
      int128 bias,
      int128 slope,
      uint256 ts,
      uint256 blk
    );

  function user_point_epoch(address arg0) external view returns (uint256);

  function slope_changes(uint256 arg0) external view returns (int128);

  function controller() external view returns (address);

  function transfersEnabled() external view returns (bool);

  function name() external view returns (string memory);

  function symbol() external view returns (string memory);

  function version() external view returns (string memory);

  function decimals() external view returns (uint8);
}

interface IFeeDistro {
  function checkpoint() external;

  function getYield() external;

  function earned(address _account) external view returns (uint256);
}

interface IStaker {
  function stake(uint256) external;

  function release() external;

  function claimFees(
    address _distroContract,
    address _token,
    address _claimTo
  ) external returns (uint256);
}

interface IVoting {
  function vote_for_gauge_weights(address, uint256) external;
}

interface IFeeClaimer {
  function calcRewards(uint256 yield) external view returns (uint256 pendingRewardsLessFee, uint256 protocolFee);
}

File 7 of 11 : ITokenMinter.sol
// SPDX-License-Identifier: MIT
pragma solidity 0.8.9;

interface ITokenMinter {
  function mint(address, uint256) external;

  function burn(address, uint256) external;
}

File 8 of 11 : Whitelist.sol
// SPDX-License-Identifier: MIT
pragma solidity 0.8.9;
import '@openzeppelin/contracts/access/Ownable.sol';

interface IWhitelist {
  function isWhitelisted(address) external view returns (bool);
}

contract Whitelist is IWhitelist, Ownable {
  mapping(address => bool) public isWhitelisted;

  constructor(address _gov) {
    transferOwnership(_gov);
  }

  function whitelistAdd(address _addr) external onlyOwner {
    isWhitelisted[_addr] = true;
    emit AddedToWhitelist(_addr);
  }

  function whitelistRemove(address _addr) external onlyOwner {
    isWhitelisted[_addr] = false;
    emit RemovedFromWhitelist(_addr);
  }

  event RemovedFromWhitelist(address indexed _addr);
  event AddedToWhitelist(address indexed _addr);
}

File 9 of 11 : Context.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/Context.sol)

pragma solidity ^0.8.0;

/**
 * @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 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) {
        return msg.sender;
    }

    function _msgData() internal view virtual returns (bytes calldata) {
        return msg.data;
    }
}

File 10 of 11 : draft-IERC20Permit.sol
// 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 IERC20Permit {
    /**
     * @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);
}

File 11 of 11 : Address.sol
// 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 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
     * ====
     *
     * [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 Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a delegate call.
     *
     * _Available since v3.4._
     */
    function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionDelegateCall(target, data, "Address: low-level delegate call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a delegate call.
     *
     * _Available since v3.4._
     */
    function functionDelegateCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal returns (bytes memory) {
        require(isContract(target), "Address: delegate call to non-contract");

        (bool success, bytes memory returndata) = target.delegatecall(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);
            }
        }
    }
}

Settings
{
  "optimizer": {
    "enabled": true,
    "runs": 1000
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "libraries": {}
}

Contract ABI

[{"inputs":[{"internalType":"address","name":"_dpx","type":"address"},{"internalType":"address","name":"_escrow","type":"address"},{"internalType":"address","name":"_staker","type":"address"},{"internalType":"address","name":"_minter","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[],"name":"UNAUTHORIZED","type":"error"},{"inputs":[],"name":"ZERO_AMOUNT","type":"error"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"_user","type":"address"},{"indexed":false,"internalType":"uint256","name":"_amount","type":"uint256"}],"name":"Deposited","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":false,"internalType":"address","name":"account","type":"address"}],"name":"Paused","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"account","type":"address"}],"name":"Unpaused","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"_new","type":"address"},{"indexed":false,"internalType":"address","name":"_old","type":"address"}],"name":"WhitelistUpdated","type":"event"},{"inputs":[{"internalType":"uint256","name":"_amount","type":"uint256"}],"name":"deposit","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"depositAll","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"dpx","outputs":[{"internalType":"contract IERC20","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"escrow","outputs":[{"internalType":"contract IERC20","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"minter","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"paused","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"contract IERC20","name":"token","type":"address"}],"name":"retrieve","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bool","name":"_pauseContract","type":"bool"}],"name":"setPaused","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_whitelist","type":"address"}],"name":"setWhitelist","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"staker","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"whitelist","outputs":[{"internalType":"contract IWhitelist","name":"","type":"address"}],"stateMutability":"view","type":"function"}]

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Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)

0000000000000000000000006c2c06790b3e3e3c38e12ee22f8183b37a13ee5500000000000000000000000080789d252a288e93b01d82373d767d71a75d9f160000000000000000000000006de5bec59ed2575a799f2ac0a0aeaaaf59e61c3d000000000000000000000000f236ea74b515ef96a9898f5a4ed4aa591f253ce1

-----Decoded View---------------
Arg [0] : _dpx (address): 0x6c2c06790b3e3e3c38e12ee22f8183b37a13ee55
Arg [1] : _escrow (address): 0x80789d252a288e93b01d82373d767d71a75d9f16
Arg [2] : _staker (address): 0x6de5bec59ed2575a799f2ac0a0aeaaaf59e61c3d
Arg [3] : _minter (address): 0xf236ea74b515ef96a9898f5a4ed4aa591f253ce1

-----Encoded View---------------
4 Constructor Arguments found :
Arg [0] : 0000000000000000000000006c2c06790b3e3e3c38e12ee22f8183b37a13ee55
Arg [1] : 00000000000000000000000080789d252a288e93b01d82373d767d71a75d9f16
Arg [2] : 0000000000000000000000006de5bec59ed2575a799f2ac0a0aeaaaf59e61c3d
Arg [3] : 000000000000000000000000f236ea74b515ef96a9898f5a4ed4aa591f253ce1


Block Transaction Gas Used Reward
Age Block Fee Address BC Fee Address Voting Power Jailed Incoming
Block Uncle Number Difficulty Gas Used Reward
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