Contract Source Code (Solidity)

IDE

• Blockscan IDE
• 🤖 Code ReaderBeta
• Remix IDE

Outline

•  contract TrueAUD *
•    - function proxyOwner()
•    - function pendingProxyOwner()
•    - function _setUpgradeabilityOwner(addr ...
•    - function _setPendingUpgradeabilityOwn ...
•    - function transferProxyOwnership(addre ...
•    - function claimProxyOwnership()
•    - function upgradeTo(address implementa ...
•    - function implementation()
•    - function()

More Options

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

/**
 *Submitted for verification at Etherscan.io on 2019-04-19
*/

pragma solidity ^0.4.23;

// File: contracts/Proxy/OwnedUpgradeabilityProxy.sol

/**
 * @title OwnedUpgradeabilityProxy
 * @dev This contract combines an upgradeability proxy with basic authorization control functionalities
 */
contract TrueAUD {
    /**
    * @dev Event to show ownership has been transferred
    * @param previousOwner representing the address of the previous owner
    * @param newOwner representing the address of the new owner
    */
    event ProxyOwnershipTransferred(address indexed previousOwner, address indexed newOwner);

    /**
    * @dev Event to show ownership transfer is pending
    * @param currentOwner representing the address of the current owner
    * @param pendingOwner representing the address of the pending owner
    */
    event NewPendingOwner(address currentOwner, address pendingOwner);
    
    // Storage position of the owner and pendingOwner of the contract
    bytes32 private constant proxyOwnerPosition = 0x9afdba48695f976525206667656e0eb4a6d66671c0d3ec078f1f48d2307ed49c;//keccak256("trueAUD.proxy.owner");
    bytes32 private constant pendingProxyOwnerPosition = 0x7b9044cf1491ee5d1e688907e48d0439248c6543a740f2f5f828fecf8367c4d1;//keccak256("trueAUD.pending.proxy.owner");

    /**
    * @dev the constructor sets the original owner of the contract to the sender account.
    */
    constructor() public {
        _setUpgradeabilityOwner(msg.sender);
    }

    /**
    * @dev Throws if called by any account other than the owner.
    */
    modifier onlyProxyOwner() {
        require(msg.sender == proxyOwner(), "only Proxy Owner");
        _;
    }

    /**
    * @dev Throws if called by any account other than the pending owner.
    */
    modifier onlyPendingProxyOwner() {
        require(msg.sender == pendingProxyOwner(), "only pending Proxy Owner");
        _;
    }

    /**
    * @dev Tells the address of the owner
    * @return the address of the owner
    */
    function proxyOwner() public view returns (address owner) {
        bytes32 position = proxyOwnerPosition;
        assembly {
            owner := sload(position)
        }
    }

    /**
    * @dev Tells the address of the owner
    * @return the address of the owner
    */
    function pendingProxyOwner() public view returns (address pendingOwner) {
        bytes32 position = pendingProxyOwnerPosition;
        assembly {
            pendingOwner := sload(position)
        }
    }

    /**
    * @dev Sets the address of the owner
    */
    function _setUpgradeabilityOwner(address newProxyOwner) internal {
        bytes32 position = proxyOwnerPosition;
        assembly {
            sstore(position, newProxyOwner)
        }
    }

    /**
    * @dev Sets the address of the owner
    */
    function _setPendingUpgradeabilityOwner(address newPendingProxyOwner) internal {
        bytes32 position = pendingProxyOwnerPosition;
        assembly {
            sstore(position, newPendingProxyOwner)
        }
    }

    /**
    * @dev Allows the current owner to transfer control of the contract to a newOwner.
    *changes the pending owner to newOwner. But doesn't actually transfer
    * @param newOwner The address to transfer ownership to.
    */
    function transferProxyOwnership(address newOwner) external onlyProxyOwner {
        require(newOwner != address(0));
        _setPendingUpgradeabilityOwner(newOwner);
        emit NewPendingOwner(proxyOwner(), newOwner);
    }

    /**
    * @dev Allows the pendingOwner to claim ownership of the proxy
    */
    function claimProxyOwnership() external onlyPendingProxyOwner {
        emit ProxyOwnershipTransferred(proxyOwner(), pendingProxyOwner());
        _setUpgradeabilityOwner(pendingProxyOwner());
        _setPendingUpgradeabilityOwner(address(0));
    }

    /**
    * @dev Allows the proxy owner to upgrade the current version of the proxy.
    * @param implementation representing the address of the new implementation to be set.
    */
    function upgradeTo(address implementation) external onlyProxyOwner {
        address currentImplementation;
        bytes32 position = implementationPosition;
        assembly {
            currentImplementation := sload(position)
        }
        require(currentImplementation != implementation);
        assembly {
          sstore(position, implementation)
        }
        emit Upgraded(implementation);
    }
    /**
    * @dev This event will be emitted every time the implementation gets upgraded
    * @param implementation representing the address of the upgraded implementation
    */
    event Upgraded(address indexed implementation);

    // Storage position of the address of the current implementation
    bytes32 private constant implementationPosition = 0xc20777594ecafd73f44a72aa5ad2de8704211212d04473d4b208539e34ba14eb; //keccak256("trueAUD.proxy.implementation");

    function implementation() public view returns (address impl) {
        bytes32 position = implementationPosition;
        assembly {
            impl := sload(position)
        }
    }

    /**
    * @dev Fallback function allowing to perform a delegatecall to the given implementation.
    * This function will return whatever the implementation call returns
    */
    function() external payable {
        assembly {
            let ptr := mload(0x40)
            calldatacopy(ptr, returndatasize, calldatasize)
            let result := delegatecall(gas, sload(0xc20777594ecafd73f44a72aa5ad2de8704211212d04473d4b208539e34ba14eb), ptr, calldatasize, returndatasize, returndatasize)
            returndatacopy(ptr, 0, returndatasize)

            switch result
            case 0 { revert(ptr, returndatasize) }
            default { return(ptr, returndatasize) }
        }
    }
}

• No Contract Security Audit Submitted- Submit Audit Here

[{"constant":true,"inputs":[],"name":"proxyOwner","outputs":[{"name":"owner","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"pendingProxyOwner","outputs":[{"name":"pendingOwner","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"implementation","type":"address"}],"name":"upgradeTo","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"implementation","outputs":[{"name":"impl","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[],"name":"claimProxyOwnership","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"newOwner","type":"address"}],"name":"transferProxyOwnership","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"inputs":[],"payable":false,"stateMutability":"nonpayable","type":"constructor"},{"payable":true,"stateMutability":"payable","type":"fallback"},{"anonymous":false,"inputs":[{"indexed":true,"name":"previousOwner","type":"address"},{"indexed":true,"name":"newOwner","type":"address"}],"name":"ProxyOwnershipTransferred","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"name":"currentOwner","type":"address"},{"indexed":false,"name":"pendingOwner","type":"address"}],"name":"NewPendingOwner","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"implementation","type":"address"}],"name":"Upgraded","type":"event"}]

608060405234801561001057600080fd5b5061002333640100000000610028810204565b61004c565b7f9afdba48695f976525206667656e0eb4a6d66671c0d3ec078f1f48d2307ed49c55565b6106038061005b6000396000f3006080604052600436106100775763ffffffff7c0100000000000000000000000000000000000000000000000000000000600035041663025313a281146100ba5780630add8140146100f85780633659cfe61461010d5780635c60da1b1461013d5780639965b3d614610152578063f1739cae14610167575b604051363d82373d3d36837fc20777594ecafd73f44a72aa5ad2de8704211212d04473d4b208539e34ba14eb545af43d6000833e8080156100b6573d83f35b3d83fd5b3480156100c657600080fd5b506100cf610195565b6040805173ffffffffffffffffffffffffffffffffffffffff9092168252519081900360200190f35b34801561010457600080fd5b506100cf6101ba565b34801561011957600080fd5b5061013b73ffffffffffffffffffffffffffffffffffffffff600435166101df565b005b34801561014957600080fd5b506100cf61031a565b34801561015e57600080fd5b5061013b61033f565b34801561017357600080fd5b5061013b73ffffffffffffffffffffffffffffffffffffffff60043516610466565b7f9afdba48695f976525206667656e0eb4a6d66671c0d3ec078f1f48d2307ed49c5490565b7f7b9044cf1491ee5d1e688907e48d0439248c6543a740f2f5f828fecf8367c4d15490565b6000806101ea610195565b73ffffffffffffffffffffffffffffffffffffffff163373ffffffffffffffffffffffffffffffffffffffff1614151561028557604080517f08c379a000000000000000000000000000000000000000000000000000000000815260206004820152601060248201527f6f6e6c792050726f7879204f776e657200000000000000000000000000000000604482015290519081900360640190fd5b50507fc20777594ecafd73f44a72aa5ad2de8704211212d04473d4b208539e34ba14eb80549073ffffffffffffffffffffffffffffffffffffffff80831690841614156102d157600080fd5b82815560405173ffffffffffffffffffffffffffffffffffffffff8416907fbc7cd75a20ee27fd9adebab32041f755214dbc6bffa90cc0225b39da2e5c2d3b90600090a2505050565b7fc20777594ecafd73f44a72aa5ad2de8704211212d04473d4b208539e34ba14eb5490565b6103476101ba565b73ffffffffffffffffffffffffffffffffffffffff163373ffffffffffffffffffffffffffffffffffffffff161415156103e257604080517f08c379a000000000000000000000000000000000000000000000000000000000815260206004820152601860248201527f6f6e6c792070656e64696e672050726f7879204f776e65720000000000000000604482015290519081900360640190fd5b6103ea6101ba565b73ffffffffffffffffffffffffffffffffffffffff16610408610195565b73ffffffffffffffffffffffffffffffffffffffff167f5a3e66efaa1e445ebd894728a69d6959842ea1e97bd79b892797106e270efcd960405160405180910390a361045a6104556101ba565b61058f565b61046460006105b3565b565b61046e610195565b73ffffffffffffffffffffffffffffffffffffffff163373ffffffffffffffffffffffffffffffffffffffff1614151561050957604080517f08c379a000000000000000000000000000000000000000000000000000000000815260206004820152601060248201527f6f6e6c792050726f7879204f776e657200000000000000000000000000000000604482015290519081900360640190fd5b73ffffffffffffffffffffffffffffffffffffffff8116151561052b57600080fd5b610534816105b3565b7fb3d55174552271a4f1aaf36b72f50381e892171636b3fb5447fe00e995e7a37b61055d610195565b6040805173ffffffffffffffffffffffffffffffffffffffff928316815291841660208301528051918290030190a150565b7f9afdba48695f976525206667656e0eb4a6d66671c0d3ec078f1f48d2307ed49c55565b7f7b9044cf1491ee5d1e688907e48d0439248c6543a740f2f5f828fecf8367c4d1555600a165627a7a72305820812fd85d9d5f92732effc3c491bae417eeb306384d54674f1a224fc44e38a5420029

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

bzzr://812fd85d9d5f92732effc3c491bae417eeb306384d54674f1a224fc44e38a542