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Contract

0x38fC5D5A5402Cde8cB384c939d201522F0873229

Overview

ETH Balance

0 ETH

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Transaction Hash
Method
Block
From
To
Value
Set Target51046332023-12-08 5:03:26198 days ago1702011806IN
0x38fC5D5A...2F0873229
0 ETH0.000094112.00000013
0x6080604051041832023-12-08 4:48:26198 days ago1702010906IN
 Create: Proxy
0 ETH0.000819772.00000013

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Contract Source Code Verified (Exact Match)

Contract Name:
Proxy

Compiler Version
v0.5.16+commit.9c3226ce

Optimization Enabled:
Yes with 200 runs

Other Settings:
default evmVersion
/**
 *Submitted for verification at sepolia-optimm.etherscan.io on 2023-12-11
*/

/*

Note:

This is a PROXY contract, it defers requests to its underlying TARGET contract. 
Always use this address in your applications and never the TARGET as it is liable to change.

*//*
   ____            __   __        __   _
  / __/__ __ ___  / /_ / /  ___  / /_ (_)__ __
 _\ \ / // // _ \/ __// _ \/ -_)/ __// / \ \ /
/___/ \_, //_//_/\__//_//_/\__/ \__//_/ /_\_\
     /___/

* Synthetix: Proxy.sol
*
* Latest source (may be newer): https://github.com/Synthetixio/synthetix/blob/master/contracts/Proxy.sol
* Docs: https://docs.synthetix.io/contracts/Proxy
*
* Contract Dependencies: 
*	- Owned
* Libraries: (none)
*
* MIT License
* ===========
*
* Copyright (c) 2023 Synthetix
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
*/



pragma solidity ^0.5.16;

// https://docs.synthetix.io/contracts/source/contracts/owned
contract Owned {
    address public owner;
    address public nominatedOwner;

    constructor(address _owner) public {
        require(_owner != address(0), "Owner address cannot be 0");
        owner = _owner;
        emit OwnerChanged(address(0), _owner);
    }

    function nominateNewOwner(address _owner) external onlyOwner {
        nominatedOwner = _owner;
        emit OwnerNominated(_owner);
    }

    function acceptOwnership() external {
        require(msg.sender == nominatedOwner, "You must be nominated before you can accept ownership");
        emit OwnerChanged(owner, nominatedOwner);
        owner = nominatedOwner;
        nominatedOwner = address(0);
    }

    modifier onlyOwner {
        _onlyOwner();
        _;
    }

    function _onlyOwner() private view {
        require(msg.sender == owner, "Only the contract owner may perform this action");
    }

    event OwnerNominated(address newOwner);
    event OwnerChanged(address oldOwner, address newOwner);
}


// Inheritance


// Internal references


// https://docs.synthetix.io/contracts/source/contracts/proxyable
contract Proxyable is Owned {
    // This contract should be treated like an abstract contract

    /* The proxy this contract exists behind. */
    Proxy public proxy;

    /* The caller of the proxy, passed through to this contract.
     * Note that every function using this member must apply the onlyProxy or
     * optionalProxy modifiers, otherwise their invocations can use stale values. */
    address public messageSender;

    constructor(address payable _proxy) internal {
        // This contract is abstract, and thus cannot be instantiated directly
        require(owner != address(0), "Owner must be set");

        proxy = Proxy(_proxy);
        emit ProxyUpdated(_proxy);
    }

    function setProxy(address payable _proxy) external onlyOwner {
        proxy = Proxy(_proxy);
        emit ProxyUpdated(_proxy);
    }

    function setMessageSender(address sender) external onlyProxy {
        messageSender = sender;
    }

    modifier onlyProxy {
        _onlyProxy();
        _;
    }

    function _onlyProxy() private view {
        require(Proxy(msg.sender) == proxy, "Only the proxy can call");
    }

    modifier optionalProxy {
        _optionalProxy();
        _;
    }

    function _optionalProxy() private {
        if (Proxy(msg.sender) != proxy && messageSender != msg.sender) {
            messageSender = msg.sender;
        }
    }

    modifier optionalProxy_onlyOwner {
        _optionalProxy_onlyOwner();
        _;
    }

    // solhint-disable-next-line func-name-mixedcase
    function _optionalProxy_onlyOwner() private {
        if (Proxy(msg.sender) != proxy && messageSender != msg.sender) {
            messageSender = msg.sender;
        }
        require(messageSender == owner, "Owner only function");
    }

    event ProxyUpdated(address proxyAddress);
}


// Inheritance


// Internal references


// https://docs.synthetix.io/contracts/source/contracts/proxy
contract Proxy is Owned {
    Proxyable public target;

    constructor(address _owner) public Owned(_owner) {}

    function setTarget(Proxyable _target) external onlyOwner {
        target = _target;
        emit TargetUpdated(_target);
    }

    function _emit(
        bytes calldata callData,
        uint numTopics,
        bytes32 topic1,
        bytes32 topic2,
        bytes32 topic3,
        bytes32 topic4
    ) external onlyTarget {
        uint size = callData.length;
        bytes memory _callData = callData;

        assembly {
            /* The first 32 bytes of callData contain its length (as specified by the abi).
             * Length is assumed to be a uint256 and therefore maximum of 32 bytes
             * in length. It is also leftpadded to be a multiple of 32 bytes.
             * This means moving call_data across 32 bytes guarantees we correctly access
             * the data itself. */
            switch numTopics
                case 0 {
                    log0(add(_callData, 32), size)
                }
                case 1 {
                    log1(add(_callData, 32), size, topic1)
                }
                case 2 {
                    log2(add(_callData, 32), size, topic1, topic2)
                }
                case 3 {
                    log3(add(_callData, 32), size, topic1, topic2, topic3)
                }
                case 4 {
                    log4(add(_callData, 32), size, topic1, topic2, topic3, topic4)
                }
        }
    }

    // solhint-disable no-complex-fallback
    function() external payable {
        // Mutable call setting Proxyable.messageSender as this is using call not delegatecall
        target.setMessageSender(msg.sender);

        assembly {
            let free_ptr := mload(0x40)
            calldatacopy(free_ptr, 0, calldatasize)

            /* We must explicitly forward ether to the underlying contract as well. */
            let result := call(gas, sload(target_slot), callvalue, free_ptr, calldatasize, 0, 0)
            returndatacopy(free_ptr, 0, returndatasize)

            if iszero(result) {
                revert(free_ptr, returndatasize)
            }
            return(free_ptr, returndatasize)
        }
    }

    modifier onlyTarget {
        require(Proxyable(msg.sender) == target, "Must be proxy target");
        _;
    }

    event TargetUpdated(Proxyable newTarget);
}

Contract ABI

[{"inputs":[{"internalType":"address","name":"_owner","type":"address"}],"payable":false,"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"oldOwner","type":"address"},{"indexed":false,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnerChanged","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnerNominated","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"contract Proxyable","name":"newTarget","type":"address"}],"name":"TargetUpdated","type":"event"},{"payable":true,"stateMutability":"payable","type":"fallback"},{"constant":false,"inputs":[{"internalType":"bytes","name":"callData","type":"bytes"},{"internalType":"uint256","name":"numTopics","type":"uint256"},{"internalType":"bytes32","name":"topic1","type":"bytes32"},{"internalType":"bytes32","name":"topic2","type":"bytes32"},{"internalType":"bytes32","name":"topic3","type":"bytes32"},{"internalType":"bytes32","name":"topic4","type":"bytes32"}],"name":"_emit","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[],"name":"acceptOwnership","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"_owner","type":"address"}],"name":"nominateNewOwner","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"nominatedOwner","outputs":[{"internalType":"address","name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"contract Proxyable","name":"_target","type":"address"}],"name":"setTarget","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"target","outputs":[{"internalType":"contract Proxyable","name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"}]

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Deployed Bytecode

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

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

00000000000000000000000048914229dedd5a9922f44441ffccfc2cb7856ee9

-----Decoded View---------------
Arg [0] : _owner (address): 0x48914229deDd5A9922f44441ffCCfC2Cb7856Ee9

-----Encoded View---------------
1 Constructor Arguments found :
Arg [0] : 00000000000000000000000048914229dedd5a9922f44441ffccfc2cb7856ee9


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