Contract Source Code (Solidity)

IDE

• Blockscan IDE
• 🤖 Code ReaderBeta
• Remix IDE

More Options

• Is this a proxy?
• Similar
• Sol2Uml
• Submit Audit
• Compare

/**
 *Submitted for verification at Etherscan.io on 2020-05-30
*/

/**
Matic network contracts
*/

pragma solidity ^0.5.2;


contract Ownable {
    address private _owner;

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

    /**
     * @dev The Ownable constructor sets the original `owner` of the contract to the sender
     * account.
     */
    constructor () internal {
        _owner = msg.sender;
        emit OwnershipTransferred(address(0), _owner);
    }

    /**
     * @return the address of the owner.
     */
    function owner() public view returns (address) {
        return _owner;
    }

    /**
     * @dev Throws if called by any account other than the owner.
     */
    modifier onlyOwner() {
        require(isOwner());
        _;
    }

    /**
     * @return true if `msg.sender` is the owner of the contract.
     */
    function isOwner() public view returns (bool) {
        return msg.sender == _owner;
    }

    /**
     * @dev Allows the current owner to relinquish control of the contract.
     * It will not be possible to call the functions with the `onlyOwner`
     * modifier anymore.
     * @notice Renouncing ownership will leave the contract without an owner,
     * thereby removing any functionality that is only available to the owner.
     */
    function renounceOwnership() public onlyOwner {
        emit OwnershipTransferred(_owner, address(0));
        _owner = address(0);
    }

    /**
     * @dev Allows the current owner to transfer control of the contract to a newOwner.
     * @param newOwner The address to transfer ownership to.
     */
    function transferOwnership(address newOwner) public onlyOwner {
        _transferOwnership(newOwner);
    }

    /**
     * @dev Transfers control of the contract to a newOwner.
     * @param newOwner The address to transfer ownership to.
     */
    function _transferOwnership(address newOwner) internal {
        require(newOwner != address(0));
        emit OwnershipTransferred(_owner, newOwner);
        _owner = newOwner;
    }
}

contract ProxyStorage is Ownable {
    address internal proxyTo;
}

interface ERCProxy {
    function proxyType() external pure returns (uint256 proxyTypeId);
    function implementation() external view returns (address codeAddr);
}

contract DelegateProxy is ERCProxy {
    function proxyType() external pure returns (uint256 proxyTypeId) {
        // Upgradeable proxy
        proxyTypeId = 2;
    }

    function implementation() external view returns (address);

    function delegatedFwd(address _dst, bytes memory _calldata) internal {
        // solium-disable-next-line security/no-inline-assembly
        assembly {
            let result := delegatecall(
                sub(gas, 10000),
                _dst,
                add(_calldata, 0x20),
                mload(_calldata),
                0,
                0
            )
            let size := returndatasize

            let ptr := mload(0x40)
            returndatacopy(ptr, 0, size)

            // revert instead of invalid() bc if the underlying call failed with invalid() it already wasted gas.
            // if the call returned error data, forward it
            switch result
                case 0 {
                    revert(ptr, size)
                }
                default {
                    return(ptr, size)
                }
        }
    }
}

contract Proxy is ProxyStorage, DelegateProxy {
    event ProxyUpdated(address indexed _new, address indexed _old);
    event OwnerUpdate(address _prevOwner, address _newOwner);

    constructor(address _proxyTo) public {
        updateImplementation(_proxyTo);
    }

    function() external payable {
        // require(currentContract != 0, "If app code has not been set yet, do not call");
        // Todo: filter out some calls or handle in the end fallback
        delegatedFwd(proxyTo, msg.data);
    }

    function implementation() external view returns (address) {
        return proxyTo;
    }

    function updateImplementation(address _newProxyTo) public onlyOwner {
        require(_newProxyTo != address(0x0), "INVALID_PROXY_ADDRESS");
        require(isContract(_newProxyTo), "DESTINATION_ADDRESS_IS_NOT_A_CONTRACT");
        emit ProxyUpdated(_newProxyTo, proxyTo);
        proxyTo = _newProxyTo;
    }

    function isContract(address _target) internal view returns (bool) {
        if (_target == address(0)) {
            return false;
        }

        uint256 size;
        assembly {
            size := extcodesize(_target)
        }
        return size > 0;
    }
}

contract GovernanceProxy is Proxy {
    constructor(address _proxyTo) public Proxy(_proxyTo) {}
}

• No Contract Security Audit Submitted- Submit Audit Here

[{"constant":false,"inputs":[{"internalType":"address","name":"_newProxyTo","type":"address"}],"name":"updateImplementation","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"proxyType","outputs":[{"internalType":"uint256","name":"proxyTypeId","type":"uint256"}],"payable":false,"stateMutability":"pure","type":"function"},{"constant":true,"inputs":[],"name":"implementation","outputs":[{"internalType":"address","name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[],"name":"renounceOwnership","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"isOwner","outputs":[{"internalType":"bool","name":"","type":"bool"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_proxyTo","type":"address"}],"payable":false,"stateMutability":"nonpayable","type":"constructor"},{"payable":true,"stateMutability":"payable","type":"fallback"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"_new","type":"address"},{"indexed":true,"internalType":"address","name":"_old","type":"address"}],"name":"ProxyUpdated","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"_prevOwner","type":"address"},{"indexed":false,"internalType":"address","name":"_newOwner","type":"address"}],"name":"OwnerUpdate","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"}]

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

0x6080604052600436106100705760003560e01c8063715018a61161004e578063715018a6146101475780638da5cb5b1461015c5780638f32d59b14610171578063f2fde38b1461019a57610070565b8063025b22bc146100bc5780634555d5c9146100ef5780635c60da1b14610116575b60015460408051602036601f81018290048202830182019093528282526100ba936001600160a01b031692600091819084018382808284376000920191909152506101cd92505050565b005b3480156100c857600080fd5b506100ba600480360360208110156100df57600080fd5b50356001600160a01b03166101f5565b3480156100fb57600080fd5b506101046102fa565b60408051918252519081900360200190f35b34801561012257600080fd5b5061012b6102ff565b604080516001600160a01b039092168252519081900360200190f35b34801561015357600080fd5b506100ba61030e565b34801561016857600080fd5b5061012b610369565b34801561017d57600080fd5b50610186610378565b604080519115158252519081900360200190f35b3480156101a657600080fd5b506100ba600480360360208110156101bd57600080fd5b50356001600160a01b0316610389565b600080825160208401856127105a03f43d604051816000823e8280156101f1578282f35b8282fd5b6101fd610378565b61020657600080fd5b6001600160a01b038116610259576040805162461bcd60e51b8152602060048201526015602482015274494e56414c49445f50524f58595f4144445245535360581b604482015290519081900360640190fd5b610262816103a6565b61029d5760405162461bcd60e51b81526004018080602001828103825260258152602001806104386025913960400191505060405180910390fd5b6001546040516001600160a01b03918216918316907fd32d24edea94f55e932d9a008afc425a8561462d1b1f57bc6e508e9a6b9509e190600090a3600180546001600160a01b0319166001600160a01b0392909216919091179055565b600290565b6001546001600160a01b031690565b610316610378565b61031f57600080fd5b600080546040516001600160a01b03909116907f8be0079c531659141344cd1fd0a4f28419497f9722a3daafe3b4186f6b6457e0908390a3600080546001600160a01b0319169055565b6000546001600160a01b031690565b6000546001600160a01b0316331490565b610391610378565b61039a57600080fd5b6103a3816103c9565b50565b60006001600160a01b0382166103be575060006103c4565b50803b15155b919050565b6001600160a01b0381166103dc57600080fd5b600080546040516001600160a01b03808516939216917f8be0079c531659141344cd1fd0a4f28419497f9722a3daafe3b4186f6b6457e091a3600080546001600160a01b0319166001600160a01b039290921691909117905556fe44455354494e4154494f4e5f414444524553535f49535f4e4f545f415f434f4e5452414354a265627a7a72315820a3e9226234c28f7a66c21bb0f4bc2732f8330554e1e3b9436dc5033f3a60aee264736f6c634300050b0032

00000000000000000000000098165b71cddea047c0a49413350c40571195fd07

-----Decoded View---------------
Arg [0] : _proxyTo (address): 0x98165b71cdDea047C0A49413350C40571195fd07

-----Encoded View---------------
1 Constructor Arguments found :
Arg [0] : 00000000000000000000000098165b71cddea047c0a49413350c40571195fd07