Contract Source Code (Solidity)

IDE

• Blockscan IDE
• 🤖 Code ReaderBeta
• Remix IDE

Outline

interface IBeacon    - function childImplementation()    - function upgradeChildTo(address newIm ...    - function _delegate(address implementa ...    - function _implementation()    - function _fallback()    - function _beforeFallback() library Address    - function isContract(address account)    - function sendValue(address payable re ...    - function functionCall(address target, ...    - function functionCall(address target, ...    - function functionCallWithValue(addres ...    - function functionCallWithValue(addres ...    - function functionStaticCall(address t ...    - function functionStaticCall(address t ...    - function functionDelegateCall(address ...    - function functionDelegateCall(address ...    - function _verifyCallResult(bool succe ...  contract BeaconProxy is Proxy *    - function _beacon()    - function _implementation()    - function _setBeacon(address beacon, b ...

More Options

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

/**
 *Submitted for verification at Etherscan.io on 2021-06-28
*/

// Sources flattened with hardhat v2.0.11 https://hardhat.org

// File contracts/solidity/proxy/IBeacon.sol

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

/**
 * @dev This is the interface that {BeaconProxy} expects of its beacon.
 */
interface IBeacon {
    /**
     * @dev Must return an address that can be used as a delegate call target.
     *
     * {BeaconProxy} will check that this address is a contract.
     */
    function childImplementation() external view returns (address);
    function upgradeChildTo(address newImplementation) external;
}


// File contracts/solidity/proxy/Proxy.sol



pragma solidity ^0.8.0;

/**
 * @dev This abstract contract provides a fallback function that delegates all calls to another contract using the EVM
 * instruction `delegatecall`. We refer to the second contract as the _implementation_ behind the proxy, and it has to
 * be specified by overriding the virtual {_implementation} function.
 *
 * Additionally, delegation to the implementation can be triggered manually through the {_fallback} function, or to a
 * different contract through the {_delegate} function.
 *
 * The success and return data of the delegated call will be returned back to the caller of the proxy.
 */
abstract contract Proxy {
    /**
     * @dev Delegates the current call to `implementation`.
     *
     * This function does not return to its internall call site, it will return directly to the external caller.
     */
    function _delegate(address implementation) internal virtual {
        // solhint-disable-next-line no-inline-assembly
        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 This is a virtual function that should be overriden so it returns the address to which the fallback function
     * and {_fallback} should delegate.
     */
    function _implementation() internal view virtual returns (address);

    /**
     * @dev Delegates the current call to the address returned by `_implementation()`.
     *
     * This function does not return to its internall call site, it will return directly to the external caller.
     */
    function _fallback() internal virtual {
        _beforeFallback();
        _delegate(_implementation());
    }

    /**
     * @dev Fallback function that delegates calls to the address returned by `_implementation()`. Will run if no other
     * function in the contract matches the call data.
     */
    fallback () external payable virtual {
        _fallback();
    }

    /**
     * @dev Fallback function that delegates calls to the address returned by `_implementation()`. Will run if call data
     * is empty.
     */
    receive () external payable virtual {
        _fallback();
    }

    /**
     * @dev Hook that is called before falling back to the implementation. Can happen as part of a manual `_fallback`
     * call, or as part of the Solidity `fallback` or `receive` functions.
     *
     * If overriden should call `super._beforeFallback()`.
     */
    function _beforeFallback() internal virtual {
    }
}


// File contracts/solidity/util/Address.sol



pragma solidity ^0.8.0;

/**
 * @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
     * ====
     */
    function isContract(address account) internal view returns (bool) {
        // This method relies on extcodesize, which returns 0 for contracts in
        // construction, since the code is only stored at the end of the
        // constructor execution.

        uint256 size;
        // solhint-disable-next-line no-inline-assembly
        assembly { size := extcodesize(account) }
        return size > 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");

        // solhint-disable-next-line avoid-low-level-calls, avoid-call-value
        (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");

        // solhint-disable-next-line avoid-low-level-calls
        (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");

        // solhint-disable-next-line avoid-low-level-calls
        (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");

        // solhint-disable-next-line avoid-low-level-calls
        (bool success, bytes memory returndata) = target.delegatecall(data);
        return _verifyCallResult(success, returndata, errorMessage);
    }

    function _verifyCallResult(bool success, bytes memory returndata, string memory errorMessage) private 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

                // solhint-disable-next-line no-inline-assembly
                assembly {
                    let returndata_size := mload(returndata)
                    revert(add(32, returndata), returndata_size)
                }
            } else {
                revert(errorMessage);
            }
        }
    }
}


// File contracts/solidity/proxy/BeaconProxy.sol



pragma solidity ^0.8.0;



/**
 * @dev This contract implements a proxy that gets the implementation address for each call from a {UpgradeableBeacon}.
 *
 * The beacon address is stored in storage slot `uint256(keccak256('eip1967.proxy.beacon')) - 1`, so that it doesn't
 * conflict with the storage layout of the implementation behind the proxy.
 *
 * _Available since v3.4._
 */
contract BeaconProxy is Proxy {
    /**
     * @dev The storage slot of the UpgradeableBeacon contract which defines the implementation for this proxy.
     * This is bytes32(uint256(keccak256('eip1967.proxy.beacon')) - 1)) and is validated in the constructor.
     */
    bytes32 private constant _BEACON_SLOT = 0xa3f0ad74e5423aebfd80d3ef4346578335a9a72aeaee59ff6cb3582b35133d50;

    /**
     * @dev Initializes the proxy with `beacon`.
     *
     * If `data` is nonempty, it's used as data in a delegate call to the implementation returned by the beacon. This
     * will typically be an encoded function call, and allows initializating the storage of the proxy like a Solidity
     * constructor.
     *
     * Requirements:
     *
     * - `beacon` must be a contract with the interface {IBeacon}.
     */
    constructor(address beacon, bytes memory data) payable {
        assert(_BEACON_SLOT == bytes32(uint256(keccak256("eip1967.proxy.beacon")) - 1));
        _setBeacon(beacon, data);
    }

    /**
     * @dev Returns the current beacon address.
     */
    function _beacon() internal view virtual returns (address beacon) {
        bytes32 slot = _BEACON_SLOT;
        // solhint-disable-next-line no-inline-assembly
        assembly {
            beacon := sload(slot)
        }
    }

    /**
     * @dev Returns the current implementation address of the associated beacon.
     */
    function _implementation() internal view virtual override returns (address) {
        return IBeacon(_beacon()).childImplementation();
    }

    /**
     * @dev Changes the proxy to use a new beacon.
     *
     * If `data` is nonempty, it's used as data in a delegate call to the implementation returned by the beacon.
     *
     * Requirements:
     *
     * - `beacon` must be a contract.
     * - The implementation returned by `beacon` must be a contract.
     */
    function _setBeacon(address beacon, bytes memory data) internal virtual {
        require(
            Address.isContract(beacon),
            "BeaconProxy: beacon is not a contract"
        );
        require(
            Address.isContract(IBeacon(beacon).childImplementation()),
            "BeaconProxy: beacon implementation is not a contract"
        );
        bytes32 slot = _BEACON_SLOT;

        // solhint-disable-next-line no-inline-assembly
        assembly {
            sstore(slot, beacon)
        }

        if (data.length > 0) {
            Address.functionDelegateCall(_implementation(), data, "BeaconProxy: function call failed");
        }
    }
}

• No Contract Security Audit Submitted- Submit Audit Here

[{"inputs":[{"internalType":"address","name":"beacon","type":"address"},{"internalType":"bytes","name":"data","type":"bytes"}],"stateMutability":"payable","type":"constructor"},{"stateMutability":"payable","type":"fallback"},{"stateMutability":"payable","type":"receive"}]

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

0x60806040523661001357610011610017565b005b6100115b61002761002261012e565b6101da565b565b3b151590565b6060833b6100aa5760405162461bcd60e51b815260206004820152602660248201527f416464726573733a2064656c65676174652063616c6c20746f206e6f6e2d636f60448201527f6e7472616374000000000000000000000000000000000000000000000000000060648201526084015b60405180910390fd5b6000808573ffffffffffffffffffffffffffffffffffffffff16856040516100d2919061026b565b600060405180830381855af49150503d806000811461010d576040519150601f19603f3d011682016040523d82523d6000602084013e610112565b606091505b50915091506101228282866101fe565b925050505b9392505050565b60006101587fa3f0ad74e5423aebfd80d3ef4346578335a9a72aeaee59ff6cb3582b35133d505490565b73ffffffffffffffffffffffffffffffffffffffff1663da5257166040518163ffffffff1660e01b815260040160206040518083038186803b15801561019d57600080fd5b505afa1580156101b1573d6000803e3d6000fd5b505050506040513d601f19601f820116820180604052508101906101d59190610237565b905090565b3660008037600080366000845af43d6000803e8080156101f9573d6000f35b3d6000fd5b6060831561020d575081610127565b82511561021d5782518084602001fd5b8160405162461bcd60e51b81526004016100a19190610287565b600060208284031215610248578081fd5b815173ffffffffffffffffffffffffffffffffffffffff81168114610127578182fd5b6000825161027d8184602087016102ba565b9190910192915050565b60208152600082518060208401526102a68160408501602087016102ba565b601f01601f19169190910160400192915050565b60005b838110156102d55781810151838201526020016102bd565b838111156102e4576000848401525b5050505056fea2646970667358221220d6fb37f385edf477bb5b2cb6b07ef086b11922b44c01e7e13c94e97c64d067c064736f6c63430008040033

12352:2618:0:-:0;;;;;;3514:11;:9;:11::i;:::-;12352:2618;;3282:11;2918:113;2995:28;3005:17;:15;:17::i;:::-;2995:9;:28::i;:::-;2918:113::o;4642:422::-;5009:20;5048:8;;;4642:422::o;10721:423::-;10832:12;5009:20;;10857:69;;;;-1:-1:-1;;;10857:69:0;;1221:2:1;10857:69:0;;;1203:21:1;1260:2;1240:18;;;1233:30;1299:34;1279:18;;;1272:62;1370:8;1350:18;;;1343:36;1396:19;;10857:69:0;;;;;;;;;11000:12;11014:23;11041:6;:19;;11061:4;11041:25;;;;;;:::i;:::-;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;10999:67;;;;11084:52;11102:7;11111:10;11123:12;11084:17;:52::i;:::-;11077:59;;;;10721:423;;;;;;:::o;13792:142::-;13859:7;13894:9;12670:66;13655:11;;13630:47;13894:9;13886:38;;;:40;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;:::i;:::-;13879:47;;13792:142;:::o;1511:915::-;1911:14;1908:1;1905;1892:34;2129:1;2126;2110:14;2107:1;2091:14;2084:5;2071:60;2208:16;2205:1;2202;2187:38;2248:6;2317:38;;;;2389:16;2386:1;2379:27;2317:38;2336:16;2333:1;2326:27;11152:742;11267:12;11296:7;11292:595;;;-1:-1:-1;11327:10:0;11320:17;;11292:595;11441:17;;:21;11437:439;;11704:10;11698:17;11765:15;11752:10;11748:2;11744:19;11737:44;11652:148;11847:12;11840:20;;-1:-1:-1;;;11840:20:0;;;;;;;;:::i;14:333:1:-;84:6;137:2;125:9;116:7;112:23;108:32;105:2;;;158:6;150;143:22;105:2;195:9;189:16;245:42;238:5;234:54;227:5;224:65;214:2;;308:6;300;293:22;352:274;481:3;519:6;513:13;535:53;581:6;576:3;569:4;561:6;557:17;535:53;:::i;:::-;604:16;;;;;489:137;-1:-1:-1;;489:137:1:o;631:383::-;780:2;769:9;762:21;743:4;812:6;806:13;855:6;850:2;839:9;835:18;828:34;871:66;930:6;925:2;914:9;910:18;905:2;897:6;893:15;871:66;:::i;:::-;998:2;977:15;-1:-1:-1;;973:29:1;958:45;;;;1005:2;954:54;;752:262;-1:-1:-1;;752:262:1:o;1426:258::-;1498:1;1508:113;1522:6;1519:1;1516:13;1508:113;;;1598:11;;;1592:18;1579:11;;;1572:39;1544:2;1537:10;1508:113;;;1639:6;1636:1;1633:13;1630:2;;;1674:1;1665:6;1660:3;1656:16;1649:27;1630:2;;1479:205;;;:::o

ipfs://d6fb37f385edf477bb5b2cb6b07ef086b11922b44c01e7e13c94e97c64d067c0