Contract

Contract Source Code (Solidity)

IDE

• Blockscan IDE
• 🤖 Code ReaderBeta
• Remix IDE

Outline

•  contract Proxy
•    - function ()
•    - function _implementation()
•    - function _delegate(address implementa ...
•    - function _willFallback()
•    - function _fallback()
• library AddressUtils
•    - function isContract(address addr)
•  contract UpgradeabilityProxy is Pr ...
•    - function _implementation()
•    - function _upgradeTo(address newImplem ...
•    - function _setImplementation(address n ...
•  contract AdminUpgradeabilityProxy ... *
•    - function admin()
•    - function implementation()
•    - function changeAdmin(address newAdmin ...
•    - function upgradeTo(address newImpleme ...
•    - function upgradeToAndCall(address new ...
•    - function _admin()
•    - function _setAdmin(address newAdmin)
•    - function _willFallback()

More Options

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

/**
 *Submitted for verification at Etherscan.io on 2023-08-07
*/

// File: contracts/zeppelin/Proxy.sol

pragma solidity ^0.4.24;

/**
 * @title Proxy
 * @dev Implements delegation of calls to other contracts, with proper
 * forwarding of return values and bubbling of failures.
 * It defines a fallback function that delegates all calls to the address
 * returned by the abstract _implementation() internal function.
 */
contract Proxy {
    /**
     * @dev Fallback function.
     * Implemented entirely in `_fallback`.
     */
    function () payable external {
        _fallback();
    }

    /**
     * @return The Address of the implementation.
     */
    function _implementation() internal view returns (address);

    /**
     * @dev Delegates execution to an implementation contract.
     * This is a low level function that doesn't return to its internal call site.
     * It will return to the external caller whatever the implementation returns.
     * @param implementation Address to delegate.
     */
    function _delegate(address implementation) internal {
        assembly {
        // Copy msg.data. We take full control of memory in this inline assembly
        // block because it will not return to Solidity code. We overwrite the
        // Solidity scratch pad at memory position 0.
            calldatacopy(0, 0, calldatasize)

        // Call the implementation.
        // out and outsize are 0 because we don't know the size yet.
            let result := delegatecall(gas, implementation, 0, calldatasize, 0, 0)

        // Copy the returned data.
            returndatacopy(0, 0, returndatasize)

            switch result
            // delegatecall returns 0 on error.
            case 0 { revert(0, returndatasize) }
            default { return(0, returndatasize) }
        }
    }

    /**
     * @dev Function that is run as the first thing in the fallback function.
     * Can be redefined in derived contracts to add functionality.
     * Redefinitions must call super._willFallback().
     */
    function _willFallback() internal {
    }

    /**
     * @dev fallback implementation.
     * Extracted to enable manual triggering.
     */
    function _fallback() internal {
        _willFallback();
        _delegate(_implementation());
    }
}

// File: contracts/zeppelin/AddressUtils.sol

pragma solidity ^0.4.24;


/**
 * Utility library of inline functions on addresses
 */
library AddressUtils {

    /**
     * Returns whether the target address is a contract
     * @dev This function will return false if invoked during the constructor of a contract,
     * as the code is not actually created until after the constructor finishes.
     * @param addr address to check
     * @return whether the target address is a contract
     */
    function isContract(address addr) internal view returns (bool) {
        uint256 size;
        // XXX Currently there is no better way to check if there is a contract in an address
        // than to check the size of the code at that address.
        // See https://ethereum.stackexchange.com/a/14016/36603
        // for more details about how this works.
        // TODO Check this again before the Serenity release, because all addresses will be
        // contracts then.
        // solium-disable-next-line security/no-inline-assembly
        assembly { size := extcodesize(addr) }
        return size > 0;
    }

}

// File: contracts/zeppelin/UpgradeabilityProxy.sol

pragma solidity ^0.4.24;



/**
 * @title UpgradeabilityProxy
 * @dev This contract implements a proxy that allows to change the
 * implementation address to which it will delegate.
 * Such a change is called an implementation upgrade.
 */
contract UpgradeabilityProxy is Proxy {
    /**
     * @dev Emitted when the implementation is upgraded.
     * @param implementation Address of the new implementation.
     */
    event Upgraded(address implementation);

    /**
     * @dev Storage slot with the address of the current implementation.
     * This is the keccak-256 hash of "org.zeppelinos.proxy.implementation", and is
     * validated in the constructor.
     */
    bytes32 private constant IMPLEMENTATION_SLOT = 0x7050c9e0f4ca769c69bd3a8ef740bc37934f8e2c036e5a723fd8ee048ed3f8c3;

    /**
     * @dev Contract constructor.
     * @param _implementation Address of the initial implementation.
     */
    constructor(address _implementation) public {
        assert(IMPLEMENTATION_SLOT == keccak256("org.zeppelinos.proxy.implementation"));

        _setImplementation(_implementation);
    }

    /**
     * @dev Returns the current implementation.
     * @return Address of the current implementation
     */
    function _implementation() internal view returns (address impl) {
        bytes32 slot = IMPLEMENTATION_SLOT;
        assembly {
            impl := sload(slot)
        }
    }

    /**
     * @dev Upgrades the proxy to a new implementation.
     * @param newImplementation Address of the new implementation.
     */
    function _upgradeTo(address newImplementation) internal {
        _setImplementation(newImplementation);
        emit Upgraded(newImplementation);
    }

    /**
     * @dev Sets the implementation address of the proxy.
     * @param newImplementation Address of the new implementation.
     */
    function _setImplementation(address newImplementation) private {
        require(AddressUtils.isContract(newImplementation), "Cannot set a proxy implementation to a non-contract address");

        bytes32 slot = IMPLEMENTATION_SLOT;

        assembly {
            sstore(slot, newImplementation)
        }
    }
}

// File: contracts/zeppelin/AdminUpgradeabilityProxy.sol

pragma solidity ^0.4.24;


/**
 * @title AdminUpgradeabilityProxy
 * @dev This contract combines an upgradeability proxy with an authorization
 * mechanism for administrative tasks.
 * All external functions in this contract must be guarded by the
 * `ifAdmin` modifier. See ethereum/solidity#3864 for a Solidity
 * feature proposal that would enable this to be done automatically.
 */
contract AdminUpgradeabilityProxy is UpgradeabilityProxy {
    /**
     * @dev Emitted when the administration has been transferred.
     * @param previousAdmin Address of the previous admin.
     * @param newAdmin Address of the new admin.
     */
    event AdminChanged(address previousAdmin, address newAdmin);

    /**
     * @dev Storage slot with the admin of the contract.
     * This is the keccak-256 hash of "org.zeppelinos.proxy.admin", and is
     * validated in the constructor.
     */
    bytes32 private constant ADMIN_SLOT = 0x10d6a54a4754c8869d6886b5f5d7fbfa5b4522237ea5c60d11bc4e7a1ff9390b;

    /**
     * @dev Modifier to check whether the `msg.sender` is the admin.
     * If it is, it will run the function. Otherwise, it will delegate the call
     * to the implementation.
     */
    modifier ifAdmin() {
        if (msg.sender == _admin()) {
            _;
        } else {
            _fallback();
        }
    }

    /**
     * Contract constructor.
     * It sets the `msg.sender` as the proxy administrator.
     * @param _implementation address of the initial implementation.
     */
    constructor(address _implementation) UpgradeabilityProxy(_implementation) public {
        assert(ADMIN_SLOT == keccak256("org.zeppelinos.proxy.admin"));

        _setAdmin(msg.sender);
    }

    /**
     * @return The address of the proxy admin.
     */
    function admin() external view ifAdmin returns (address) {
        return _admin();
    }

    /**
     * @return The address of the implementation.
     */
    function implementation() external view ifAdmin returns (address) {
        return _implementation();
    }

    /**
     * @dev Changes the admin of the proxy.
     * Only the current admin can call this function.
     * @param newAdmin Address to transfer proxy administration to.
     */
    function changeAdmin(address newAdmin) external ifAdmin {
        require(newAdmin != address(0), "Cannot change the admin of a proxy to the zero address");
        emit AdminChanged(_admin(), newAdmin);
        _setAdmin(newAdmin);
    }

    /**
     * @dev Upgrade the backing implementation of the proxy.
     * Only the admin can call this function.
     * @param newImplementation Address of the new implementation.
     */
    function upgradeTo(address newImplementation) external ifAdmin {
        _upgradeTo(newImplementation);
    }

    /**
     * @dev Upgrade the backing implementation of the proxy and call a function
     * on the new implementation.
     * This is useful to initialize the proxied contract.
     * @param newImplementation Address of the new implementation.
     * @param data Data to send as msg.data in the low level call.
     * It should include the signature and the parameters of the function to be
     * called, as described in
     * https://solidity.readthedocs.io/en/develop/abi-spec.html#function-selector-and-argument-encoding.
     */
    function upgradeToAndCall(address newImplementation, bytes data) payable external ifAdmin {
        _upgradeTo(newImplementation);
        require(address(this).call.value(msg.value)(data));
    }

    /**
     * @return The admin slot.
     */
    function _admin() internal view returns (address adm) {
        bytes32 slot = ADMIN_SLOT;
        assembly {
            adm := sload(slot)
        }
    }

    /**
     * @dev Sets the address of the proxy admin.
     * @param newAdmin Address of the new proxy admin.
     */
    function _setAdmin(address newAdmin) internal {
        bytes32 slot = ADMIN_SLOT;

        assembly {
            sstore(slot, newAdmin)
        }
    }

    /**
     * @dev Only fall back when the sender is not the admin.
     */
    function _willFallback() internal {
        require(msg.sender != _admin(), "Cannot call fallback function from the proxy admin");
        super._willFallback();
    }
}

• No Contract Security Audit Submitted- Submit Audit Here

[{"constant":false,"inputs":[{"name":"newImplementation","type":"address"}],"name":"upgradeTo","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"newImplementation","type":"address"},{"name":"data","type":"bytes"}],"name":"upgradeToAndCall","outputs":[],"payable":true,"stateMutability":"payable","type":"function"},{"constant":true,"inputs":[],"name":"implementation","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"newAdmin","type":"address"}],"name":"changeAdmin","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"admin","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"inputs":[{"name":"_implementation","type":"address"}],"payable":false,"stateMutability":"nonpayable","type":"constructor"},{"payable":true,"stateMutability":"payable","type":"fallback"},{"anonymous":false,"inputs":[{"indexed":false,"name":"previousAdmin","type":"address"},{"indexed":false,"name":"newAdmin","type":"address"}],"name":"AdminChanged","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"name":"implementation","type":"address"}],"name":"Upgraded","type":"event"}]

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

000000000000000000000000fac98fbe68a4153be8eed8de289a9ccdec8b1674

-----Decoded View---------------
Arg [0] : _implementation (address): 0xFaC98fbe68a4153Be8eED8DE289a9ccdeC8B1674

-----Encoded View---------------
1 Constructor Arguments found :
Arg [0] : 000000000000000000000000fac98fbe68a4153be8eed8de289a9ccdec8b1674

6188:3977:0:-;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;524:11;:9;:11::i;:::-;6188:3977;8528:111;;8:9:-1;5:2;;;30:1;27;20:12;5:2;-1:-1;8528:111:0;-1:-1:-1;;;;;8528:111:0;;;;;9195:199;;;;;-1:-1:-1;;;;;9195:199:0;;;;;;;;;;;;;7779:109;;8:9:-1;5:2;;;30:1;27;20:12;5:2;7779:109:0;;;;;;;;-1:-1:-1;;;;;7779:109:0;;;;;;;;;;;;;;8083:242;;8:9:-1;5:2;;;30:1;27;20:12;5:2;-1:-1;8083:242:0;-1:-1:-1;;;;;8083:242:0;;;;;7611:91;;8:9:-1;5:2;;;30:1;27;20:12;5:2;7611:91:0;;;;2182:103;2223:15;:13;:15::i;:::-;2249:28;2259:17;:15;:17::i;:::-;2249:9;:28::i;:::-;2182:103::o;8528:111::-;7066:8;:6;:8::i;:::-;-1:-1:-1;;;;;7052:22:0;:10;-1:-1:-1;;;;;7052:22:0;;7048:100;;;8602:29;8613:17;8602:10;:29::i;:::-;7048:100;;;7125:11;:9;:11::i;:::-;8528:111;:::o;9195:199::-;7066:8;:6;:8::i;:::-;-1:-1:-1;;;;;7052:22:0;:10;-1:-1:-1;;;;;7052:22:0;;7048:100;;;9296:29;9307:17;9296:10;:29::i;:::-;9352:4;-1:-1:-1;;;;;9344:18:0;9369:9;9380:4;;9344:41;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;9336:50;;;;;;;;7048:100;;;7125:11;:9;:11::i;:::-;9195:199;;;:::o;7779:109::-;7836:7;7066:8;:6;:8::i;:::-;-1:-1:-1;;;;;7052:22:0;:10;-1:-1:-1;;;;;7052:22:0;;7048:100;;;7863:17;:15;:17::i;:::-;7856:24;;7048:100;;;7125:11;:9;:11::i;:::-;7779:109;:::o;8083:242::-;7066:8;:6;:8::i;:::-;-1:-1:-1;;;;;7052:22:0;:10;-1:-1:-1;;;;;7052:22:0;;7048:100;;;-1:-1:-1;;;;;8158:22:0;;;;8150:89;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;8255:32;8268:8;:6;:8::i;:::-;8255:32;;;-1:-1:-1;;;;;8255:32:0;;;;;;;;;;;;;;;;;;;;;8298:19;8308:8;8298:9;:19::i;7611:91::-;7659:7;7066:8;:6;:8::i;:::-;-1:-1:-1;;;;;7052:22:0;:10;-1:-1:-1;;;;;7052:22:0;;7048:100;;;7686:8;:6;:8::i;9992:170::-;10059:8;:6;:8::i;:::-;-1:-1:-1;;;;;10045:22:0;:10;:22;;10037:85;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;10133:21;:19;:21::i;4763:181::-;4246:66;4915:11;;4892:45::o;987:814::-;1310:12;1307:1;1304;1291:32;1514:1;1511;1497:12;1494:1;1478:14;1473:3;1460:56;1589:14;1586:1;1583;1568:36;1627:6;1696:36;;;;1766:14;1763:1;1756:25;1696:36;1715:14;1712:1;1705:25;9452:161;6743:66;9584:11;;9562:44::o;5095:155::-;5162:37;5181:17;5162:18;:37::i;:::-;5215:27;;;-1:-1:-1;;;;;5215:27:0;;;;;;;;;;;;;;;5095:155;:::o;9745:159::-;6743:66;9864:22;9849:48::o;5403:321::-;5604:12;5485:42;5509:17;5485:23;:42::i;:::-;5477:114;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;-1:-1:-1;4246:66:0;5675:31;5660:57::o;2808:629::-;2865:4;3385:17;;3421:8;;2808:629::o

bzzr://608ecd39485de705543fb866c1eea8d069c10dec76b810a498d921ed2cf24aaa