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09/Dec/2022
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0xd3a...e5b9d
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0xd3a75bc23a...e5b9d
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Verified Contract
// SPDX-License-Identifier: MITpragma solidity ^0.8.0;import "@openzeppelin/contracts/proxy/ERC1967/ERC1967Proxy.sol";import "@openzeppelin/contracts/proxy/transparent/TransparentUpgradeableProxy.sol";import "@openzeppelin/contracts/proxy/transparent/ProxyAdmin.sol";// Kept for backwards compatibility with older versions of Hardhat and Truffle plugins.contract AdminUpgradeabilityProxy is TransparentUpgradeableProxy { constructor(address logic, address admin, bytes memory data) payable TransparentUpgradeableProxy(logic, admin, data) {}}
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
import "@openzeppelin/contracts/proxy/ERC1967/ERC1967Proxy.sol";
import "@openzeppelin/contracts/proxy/transparent/TransparentUpgradeableProxy.sol";
import "@openzeppelin/contracts/proxy/transparent/ProxyAdmin.sol";
// Kept for backwards compatibility with older versions of Hardhat and Truffle plugins.
contract AdminUpgradeabilityProxy is TransparentUpgradeableProxy {
constructor(address logic, address admin, bytes memory data) payable TransparentUpgradeableProxy(logic, admin, data) {}
}
This Solidity code defines the `AdminUpgradeabilityProxy` contract, serving as an upgradeable proxy for Ethereum smart contracts. Leveraging the OpenZeppelin library, it extends the `TransparentUpgradeableProxy` contract to allow for transparent and secure upgrades of the underlying logic contract. The proxy is initialized with the address of the initial logic contract, the admin contract for governance, and optional deployment data.
This design facilitates the separation of logic and storage concerns, enabling developers to upgrade contract functionality without disrupting the existing state or requiring redeployment. The code also notes that the contract is maintained for backward compatibility with older versions of Hardhat and Truffle plugins.
The code you provided does not explicitly define privileged roles. However, based on the usage of OpenZeppelin's upgradeable proxy patterns, we can infer the following roles:Admin Role:The `AdminUpgradeabilityProxy` contract inherits from `TransparentUpgradeableProxy`, which itself extends `ERC1967Proxy`. These contracts typically have an admin role that is responsible for initiating and approving upgrades. The admin role has the authority to change the logic contract address and manage the upgrade process.
Proxy Admin Role:The `ProxyAdmin` contract from the OpenZeppelin library is used for managing the proxy. It likely has an admin role responsible for overseeing and approving changes to the proxy, such as upgrading the logic contract. This role ensures that only authorized entities can modify the proxy's configuration.
Logic Contract Owner/Deployer: The entity deploying the `AdminUpgradeabilityProxy` contract assumes a privileged role, as they determine the initial logic contract, the admin contract, and deployment data. This role is crucial during the deployment phase and may have additional responsibilities, depending on the contract's specific use case.
It's important to note that the exact roles and their privileges might be further defined or customized based on the context in which this proxy contract is used. Developers often implement access control mechanisms to ensure that only authorized entities can perform critical operations, such as upgrading the logic contract or managing the proxy. The specific roles and their privileges can be extended or modified in the actual application code that utilizes this upgradeable proxy.
Location in code: In the constructor Line number: 21Description: The constructor allows the deployment of the proxy without specifying an initial logic contract. This could lead to unexpected behavior or misuse. Consider adding validation for the logic contract address.
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