Contract Source Code (Solidity Standard Json-Input format)

IDE

• Blockscan IDE
• 🤖 Code ReaderBeta
• Remix IDE

More Options

• Similar
• Sol2Uml
• Submit Audit
• Compare

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.24;

import {Pausable} from "@openzeppelin/contracts/utils/Pausable.sol";
import {Ownable} from "@openzeppelin/contracts/access/Ownable.sol";
import {IERC20} from "@openzeppelin/contracts/token/ERC20/IERC20.sol";

import {IBMCFaucetBridge} from "./interfaces/IBMCFaucetBridge.sol";

/// @title Ethereum faucet bridge to Boomchain (ETH, WBTC, USDT, USDC --> BMC)
/// @author BoomDAO
/// @notice Deposit ETH or listed tokens and retrieve BMC on Boomchain as of the current exchange rate on Boomswap
/// @custom:security-contact [email protected]
contract BMCFaucetBridge is IBMCFaucetBridge, Pausable, Ownable {
    // address private constant WBTC = 0x2260FAC5E5542a773Aa44fBCfeDf7C193bc2C599;
    // address private constant USDC = 0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48;
    // address private constant USDT = 0xdAC17F958D2ee523a2206206994597C13D831ec7; XXX: not supported yet --> require SafeERC20

    uint256 private _nonce;

    address public signer;

    mapping(address => bool) public supportedTokens;

    event BuyBMC(uint256 indexed nonce, address indexed from, address indexed tokenIn, uint256 amount);

    error RevertTransfer();
    error InvalidNonce();
    error InvalidToken();
    error InvalidAmount();
    error InvalidSignature();
    error InsufficientBalance();
    error InsufficientAllowance();

    /// @param _owner can pause the contract and withdraw funds
    /// @param _signer is the frontend address that will sign the buyBMCWithETH transaction
    constructor(address _owner, address _signer) Ownable(_owner) {
        signer = _signer;

        // BTC
        supportedTokens[0x2260FAC5E5542a773Aa44fBCfeDf7C193bc2C599] = true;
        // USDC
        supportedTokens[0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48] = true;
        // USDT
        // supportedTokens[0xdAC17F958D2ee523a2206206994597C13D831ec7] = true;
    }

    /**
     * @dev See {IBMCFaucetBridge-buyBMCWithETH}.
     */
    function buyBMCWithETH(uint256 nonce, uint256 amount, bytes calldata signature) external payable whenNotPaused {
        if (nonce != _nonce) revert InvalidNonce();

        bytes32 message = _prefixed(keccak256(abi.encodePacked(nonce, msg.sender, amount)));
        if (_recoverSigner(message, signature) != signer) revert InvalidSignature();

        if (msg.value != amount) revert InvalidAmount();

        _nonce = nonce + 1;

        emit BuyBMC(nonce, msg.sender, address(0), amount);
    }

    /**
     * @dev See {IBMCFaucetBridge-buyBMCWithToken}.
     */
    function buyBMCWithToken(uint256 nonce, address token, uint256 amount, bytes calldata signature)
        external
        whenNotPaused
    {
        if (nonce != _nonce) revert InvalidNonce();

        bytes32 message = _prefixed(keccak256(abi.encodePacked(nonce, msg.sender, token, amount)));
        if (_recoverSigner(message, signature) != signer) revert InvalidSignature();

        if (!supportedTokens[token]) revert InvalidToken();
        if (IERC20(token).allowance(msg.sender, address(this)) < amount) revert InsufficientAllowance();

        _nonce = nonce + 1;

        bool success = IERC20(token).transferFrom(msg.sender, address(this), amount);
        if (!success) revert RevertTransfer();

        emit BuyBMC(nonce, msg.sender, token, amount);
    }

    // ******************* VIEW FUNCTIONS *******************

    function getNextNonce() external view returns (uint256) {
        return _nonce;
    }

    function erc20Balance(address token) external view returns (uint256) {
        return _erc20Balance(token);
    }

    // ======================================================
    //                    ADMIN FUNCTIONS
    // ======================================================

    /**
     * @dev See {IBMCFaucetBridge-withdraw}.
     */
    function withdraw(address to, uint256 amount) external onlyOwner {
        if (amount > address(this).balance) revert InsufficientBalance();

        (bool success,) = payable(to).call{value: amount}("");
        if (!success) revert RevertTransfer();
    }

    /**
     * @dev See {IFaucetSwapper-withdrawERC20}.
     */
    function withdrawERC20(address token, address to, uint256 amount) external onlyOwner {
        if (_erc20Balance(token) < amount) revert InsufficientBalance();
        bool success = IERC20(token).transfer(to, amount);
        if (!success) revert RevertTransfer();
    }

    /**
     * @dev See {IBMCFaucetBridge-newSigner}.
     */
    function newSigner(address _signer) external onlyOwner {
        signer = _signer;
    }

    // ***************** PAUSABLE FUNCTIONS *****************

    function pause() external onlyOwner {
        _pause();
    }

    function unpause() external onlyOwner {
        _unpause();
    }

    // ======================================================
    //                   INTERNAL FUNCTIONS
    // ======================================================

    function _erc20Balance(address token) private view returns (uint256) {
        return IERC20(token).balanceOf(address(this));
    }

    // ======================================================
    //                 SIGNATURE VERIFICATION
    // ======================================================

    function _prefixed(bytes32 hash) private pure returns (bytes32) {
        return keccak256(abi.encodePacked("\x19Ethereum Signed Message:\n32", hash));
    }

    function _recoverSigner(bytes32 message, bytes memory sig) private pure returns (address) {
        uint8 v;
        bytes32 r;
        bytes32 s;
        (v, r, s) = _splitSignature(sig);
        return ecrecover(message, v, r, s);
    }

    function _splitSignature(bytes memory sig) private pure returns (uint8, bytes32, bytes32) {
        require(sig.length == 65);
        bytes32 r;
        bytes32 s;
        uint8 v;
        assembly {
            // first 32 bytes, after the length prefix
            r := mload(add(sig, 32))
            // second 32 bytes
            s := mload(add(sig, 64))
            // final byte (first byte of the next 32 bytes)
            v := byte(0, mload(add(sig, 96)))
        }
        return (v, r, s);
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (access/Ownable.sol)

pragma solidity ^0.8.20;

import {Context} from "../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.
 *
 * The initial owner is set to the address provided by the deployer. 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;

    /**
     * @dev The caller account is not authorized to perform an operation.
     */
    error OwnableUnauthorizedAccount(address account);

    /**
     * @dev The owner is not a valid owner account. (eg. `address(0)`)
     */
    error OwnableInvalidOwner(address owner);

    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);

    /**
     * @dev Initializes the contract setting the address provided by the deployer as the initial owner.
     */
    constructor(address initialOwner) {
        if (initialOwner == address(0)) {
            revert OwnableInvalidOwner(address(0));
        }
        _transferOwnership(initialOwner);
    }

    /**
     * @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 {
        if (owner() != _msgSender()) {
            revert OwnableUnauthorizedAccount(_msgSender());
        }
    }

    /**
     * @dev Leaves the contract without owner. It will not be possible to call
     * `onlyOwner` functions. Can only be called by the current owner.
     *
     * NOTE: Renouncing ownership will leave the contract without an owner,
     * thereby disabling 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 {
        if (newOwner == address(0)) {
            revert OwnableInvalidOwner(address(0));
        }
        _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);
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/IERC20.sol)

pragma solidity ^0.8.20;

/**
 * @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 value of tokens in existence.
     */
    function totalSupply() external view returns (uint256);

    /**
     * @dev Returns the value of tokens owned by `account`.
     */
    function balanceOf(address account) external view returns (uint256);

    /**
     * @dev Moves a `value` amount of 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 value) 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 a `value` amount of tokens 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 value) external returns (bool);

    /**
     * @dev Moves a `value` amount of tokens from `from` to `to` using the
     * allowance mechanism. `value` 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 value) external returns (bool);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.1) (utils/Context.sol)

pragma solidity ^0.8.20;

/**
 * @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;
    }

    function _contextSuffixLength() internal view virtual returns (uint256) {
        return 0;
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (utils/Pausable.sol)

pragma solidity ^0.8.20;

import {Context} from "../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 {
    bool private _paused;

    /**
     * @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);

    /**
     * @dev The operation failed because the contract is paused.
     */
    error EnforcedPause();

    /**
     * @dev The operation failed because the contract is not paused.
     */
    error ExpectedPause();

    /**
     * @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 {
        if (paused()) {
            revert EnforcedPause();
        }
    }

    /**
     * @dev Throws if the contract is not paused.
     */
    function _requirePaused() internal view virtual {
        if (!paused()) {
            revert ExpectedPause();
        }
    }

    /**
     * @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());
    }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.24;

interface IBMCFaucetBridge {
    /**
     * @notice Bridge ETH to BMC
     * @dev Emit a {BuyBMC} event used for the bridge listener.
     * Requirements:
     *
     * - Contract must not be paused
     * - Transaction must be created through the frontend
     *
     * @param nonce transaction nonce
     * @param amount amount of ETH to swap for BMC
     * @param signature frontend transaction signature
     */
    function buyBMCWithETH(uint256 nonce, uint256 amount, bytes calldata signature) external payable;

    /**
     * @notice Bridge WBTC, USDT, USDC to BMC
     * @dev Emit a {BuyBMC} event used for the bridge listener.
     * Requirements:
     *
     * - Contract must not be paused
     * - Token must be supported for bridge
     * - User must have approved the contract to spend Token
     * - Transaction must be created through the frontend
     *
     * @param nonce transaction nonce
     * @param token address of Token to swap for BMC
     * @param amount amount of Token to swap for BMC
     * @param signature frontend transaction signature
     */
    function buyBMCWithToken(uint256 nonce, address token, uint256 amount, bytes calldata signature) external;

    /**
     * @notice Withdraw ETH funds from the contract
     * @dev Requirements: Caller must be owner
     * @param to address that will receive the funds
     * @param amount amount to withdraw
     */
    function withdraw(address to, uint256 amount) external;

    /**
     * @notice Withdraw ERC20 funds from the contract
     * @dev Requirements: Caller must be owner
     * @param to address that will receive the funds
     * @param amount amount to withdraw
     */
    function withdrawERC20(address token, address to, uint256 amount) external;

    /**
     * @notice Assign a new signer for the buyBMC transactions
     * @dev Requirements: Caller must be owner
     * @param _signer frontend address that will sign the buyBMC transactions
     */
    function newSigner(address _signer) external;

    function getNextNonce() external view returns (uint256);

    function erc20Balance(address token) external view returns (uint256);
}

{
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "evmVersion": "paris",
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "libraries": {}
}

• No Contract Security Audit Submitted- Submit Audit Here

[{"inputs":[{"internalType":"address","name":"_owner","type":"address"},{"internalType":"address","name":"_signer","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[],"name":"EnforcedPause","type":"error"},{"inputs":[],"name":"ExpectedPause","type":"error"},{"inputs":[],"name":"InsufficientAllowance","type":"error"},{"inputs":[],"name":"InsufficientBalance","type":"error"},{"inputs":[],"name":"InvalidAmount","type":"error"},{"inputs":[],"name":"InvalidNonce","type":"error"},{"inputs":[],"name":"InvalidSignature","type":"error"},{"inputs":[],"name":"InvalidToken","type":"error"},{"inputs":[{"internalType":"address","name":"owner","type":"address"}],"name":"OwnableInvalidOwner","type":"error"},{"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"OwnableUnauthorizedAccount","type":"error"},{"inputs":[],"name":"RevertTransfer","type":"error"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint256","name":"nonce","type":"uint256"},{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"tokenIn","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"BuyBMC","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"},{"inputs":[{"internalType":"uint256","name":"nonce","type":"uint256"},{"internalType":"uint256","name":"amount","type":"uint256"},{"internalType":"bytes","name":"signature","type":"bytes"}],"name":"buyBMCWithETH","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"uint256","name":"nonce","type":"uint256"},{"internalType":"address","name":"token","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"},{"internalType":"bytes","name":"signature","type":"bytes"}],"name":"buyBMCWithToken","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"token","type":"address"}],"name":"erc20Balance","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getNextNonce","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_signer","type":"address"}],"name":"newSigner","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"pause","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"paused","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"signer","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"supportedTokens","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"unpause","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"withdraw","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"token","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"withdrawERC20","outputs":[],"stateMutability":"nonpayable","type":"function"}]

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

0x6080604052600436106100e85760003560e01c8063758311201161008a578063b478fc0711610059578063b478fc0714610255578063bd7084b214610283578063f2fde38b14610298578063f3fef3a3146102b857600080fd5b806375831120146101ea5780637adece07146101fd5780638456cb591461021d5780638da5cb5b1461023257600080fd5b806344004cc1116100c657806344004cc1146101615780635c975abb1461018157806368c4ac26146101a5578063715018a6146101d557600080fd5b8063238ac933146100ed5780633dc2a8431461012a5780633f4ba83a1461014c575b600080fd5b3480156100f957600080fd5b5060025461010d906001600160a01b031681565b6040516001600160a01b0390911681526020015b60405180910390f35b34801561013657600080fd5b5061014a610145366004610bee565b6102d8565b005b34801561015857600080fd5b5061014a610302565b34801561016d57600080fd5b5061014a61017c366004610c10565b610314565b34801561018d57600080fd5b5060005460ff165b6040519015158152602001610121565b3480156101b157600080fd5b506101956101c0366004610bee565b60036020526000908152604090205460ff1681565b3480156101e157600080fd5b5061014a6103e2565b61014a6101f8366004610c95565b6103f4565b34801561020957600080fd5b5061014a610218366004610ce8565b61059d565b34801561022957600080fd5b5061014a610851565b34801561023e57600080fd5b5060005461010090046001600160a01b031661010d565b34801561026157600080fd5b50610275610270366004610bee565b610861565b604051908152602001610121565b34801561028f57600080fd5b50600154610275565b3480156102a457600080fd5b5061014a6102b3366004610bee565b610872565b3480156102c457600080fd5b5061014a6102d3366004610d50565b6108b5565b6102e0610957565b600280546001600160a01b0319166001600160a01b0392909216919091179055565b61030a610957565b61031261098a565b565b61031c610957565b80610326846109dc565b101561034557604051631e9acf1760e31b815260040160405180910390fd5b60405163a9059cbb60e01b81526001600160a01b038381166004830152602482018390526000919085169063a9059cbb906044016020604051808303816000875af1158015610398573d6000803e3d6000fd5b505050506040513d601f19601f820116820180604052508101906103bc9190610d7a565b9050806103dc5760405163037a6c0960e01b815260040160405180910390fd5b50505050565b6103ea610957565b6103126000610a47565b6103fc610aa0565b600154841461041e57604051633ab3447f60e11b815260040160405180910390fd5b60408051602081018690526bffffffffffffffffffffffff193360601b1691810191909152605481018490526000906104b5906074015b60408051601f1981840301815282825280516020918201207f19457468657265756d205369676e6564204d6573736167653a0a33320000000084830152603c8085019190915282518085039091018152605c909301909152815191012090565b600254604080516020601f87018190048102820181019092528581529293506001600160a01b0390911691610507918491908790879081908401838280828437600092019190915250610ac492505050565b6001600160a01b03161461052e57604051638baa579f60e01b815260040160405180910390fd5b83341461054e5760405163162908e360e11b815260040160405180910390fd5b610559856001610d9c565b600155604051848152600090339087907f04670dac2801df8a02d9927e16c0cb686e44fa0e684a7e8a8ee83756edbb996a9060200160405180910390a45050505050565b6105a5610aa0565b60015485146105c757604051633ab3447f60e11b815260040160405180910390fd5b6000610611863387876040516020016104559493929190938452606092831b6bffffffffffffffffffffffff1990811660208601529190921b166034830152604882015260680190565b600254604080516020601f87018190048102820181019092528581529293506001600160a01b0390911691610663918491908790879081908401838280828437600092019190915250610ac492505050565b6001600160a01b03161461068a57604051638baa579f60e01b815260040160405180910390fd5b6001600160a01b03851660009081526003602052604090205460ff166106c35760405163c1ab6dc160e01b815260040160405180910390fd5b604051636eb1769f60e11b815233600482015230602482015284906001600160a01b0387169063dd62ed3e90604401602060405180830381865afa15801561070f573d6000803e3d6000fd5b505050506040513d601f19601f820116820180604052508101906107339190610dbd565b1015610752576040516313be252b60e01b815260040160405180910390fd5b61075d866001610d9c565b6001556040516323b872dd60e01b8152336004820152306024820152604481018590526000906001600160a01b038716906323b872dd906064016020604051808303816000875af11580156107b6573d6000803e3d6000fd5b505050506040513d601f19601f820116820180604052508101906107da9190610d7a565b9050806107fa5760405163037a6c0960e01b815260040160405180910390fd5b856001600160a01b0316336001600160a01b0316887f04670dac2801df8a02d9927e16c0cb686e44fa0e684a7e8a8ee83756edbb996a8860405161084091815260200190565b60405180910390a450505050505050565b610859610957565b610312610b43565b600061086c826109dc565b92915050565b61087a610957565b6001600160a01b0381166108a957604051631e4fbdf760e01b8152600060048201526024015b60405180910390fd5b6108b281610a47565b50565b6108bd610957565b478111156108de57604051631e9acf1760e31b815260040160405180910390fd5b6000826001600160a01b03168260405160006040518083038185875af1925050503d806000811461092b576040519150601f19603f3d011682016040523d82523d6000602084013e610930565b606091505b50509050806109525760405163037a6c0960e01b815260040160405180910390fd5b505050565b6000546001600160a01b036101009091041633146103125760405163118cdaa760e01b81523360048201526024016108a0565b610992610b80565b6000805460ff191690557f5db9ee0a495bf2e6ff9c91a7834c1ba4fdd244a5e8aa4e537bd38aeae4b073aa335b6040516001600160a01b03909116815260200160405180910390a1565b6040516370a0823160e01b81523060048201526000906001600160a01b038316906370a0823190602401602060405180830381865afa158015610a23573d6000803e3d6000fd5b505050506040513d601f19601f8201168201806040525081019061086c9190610dbd565b600080546001600160a01b03838116610100818102610100600160a81b0319851617855560405193049190911692909183917f8be0079c531659141344cd1fd0a4f28419497f9722a3daafe3b4186f6b6457e091a35050565b60005460ff16156103125760405163d93c066560e01b815260040160405180910390fd5b600080600080610ad385610ba3565b6040805160008152602081018083528b905260ff8516918101919091526060810183905260808101829052929550909350915060019060a0016020604051602081039080840390855afa158015610b2e573d6000803e3d6000fd5b5050604051601f190151979650505050505050565b610b4b610aa0565b6000805460ff191660011790557f62e78cea01bee320cd4e420270b5ea74000d11b0c9f74754ebdbfc544b05a2586109bf3390565b60005460ff1661031257604051638dfc202b60e01b815260040160405180910390fd5b60008060008351604114610bb657600080fd5b5050506020810151604082015160609092015160001a92909190565b80356001600160a01b0381168114610be957600080fd5b919050565b600060208284031215610c0057600080fd5b610c0982610bd2565b9392505050565b600080600060608486031215610c2557600080fd5b610c2e84610bd2565b9250610c3c60208501610bd2565b9150604084013590509250925092565b60008083601f840112610c5e57600080fd5b50813567ffffffffffffffff811115610c7657600080fd5b602083019150836020828501011115610c8e57600080fd5b9250929050565b60008060008060608587031215610cab57600080fd5b8435935060208501359250604085013567ffffffffffffffff811115610cd057600080fd5b610cdc87828801610c4c565b95989497509550505050565b600080600080600060808688031215610d0057600080fd5b85359450610d1060208701610bd2565b935060408601359250606086013567ffffffffffffffff811115610d3357600080fd5b610d3f88828901610c4c565b969995985093965092949392505050565b60008060408385031215610d6357600080fd5b610d6c83610bd2565b946020939093013593505050565b600060208284031215610d8c57600080fd5b81518015158114610c0957600080fd5b8082018082111561086c57634e487b7160e01b600052601160045260246000fd5b600060208284031215610dcf57600080fd5b505191905056fea2646970667358221220831fa390b7fe534bb841c8cfb84489b40095f935e791ac0e076547d1e110fe5764736f6c63430008180033

0000000000000000000000007cb6e698e2dd1765dd3ff77fd4fbcb2a0aae5e720000000000000000000000006554e3653d46a7cf7bb125a58d489f74aba05b6d

-----Decoded View---------------
Arg [0] : _owner (address): 0x7cb6E698E2dD1765DD3Ff77FD4fBcb2a0aaE5E72
Arg [1] : _signer (address): 0x6554e3653D46a7CF7bB125a58d489f74ABA05B6D

-----Encoded View---------------
2 Constructor Arguments found :
Arg [0] : 0000000000000000000000007cb6e698e2dd1765dd3ff77fd4fbcb2a0aae5e72
Arg [1] : 0000000000000000000000006554e3653d46a7cf7bb125a58d489f74aba05b6d