stETH Token Smart Contract Audit
Summary
This contract seems to be a part of the Aragon framework, specifically handling proxy contracts for upgradeable apps. Here’s a breakdown of its functionality: Unstructured Storage Library: This library provides functions to interact with unstructured storage. It allows storing and retrieving data at arbitrary storage slots. Interface Definitions: IACL: An interface defining the Access Control List for permissions management. IVaultRecoverable: An interface for contracts that support recovery of tokens to a vault. AppStorage Contract: This contract defines storage slots for storing the kernel address and app ID. IsContract Contract: This contract provides a function isContract to check if an address corresponds to a contract. ERCProxy Contract: This contract defines an interface for proxy contracts, specifying functions to get the proxy type and implementation address. DelegateProxy Contract: This contract extends ERCProxy and provides a function delegatedFwd to perform delegate calls. DepositableStorage Contract: This contract defines a storage slot to indicate whether a contract accepts deposits. DepositableDelegateProxy Contract: This contract combines the functionality of DepositableStorage and DelegateProxy, allowing for delegate calls and handling of deposits. KernelConstants Contract: This contract defines constants related to the Aragon kernel, such as the app IDs for the core kernel, default ACL, and default vault. KernelNamespaceConstants Contract: This contract defines constants related to kernel namespaces. AppProxyBase Contract: This contract is the base contract for Aragon app proxies. It sets up the proxy with a kernel reference, app ID, and optional initialization payload. AppProxyUpgradeable Contract: This contract extends AppProxyBase and implements the ERC897 standard for upgradeable proxies. It defines functions to get the implementation address and proxy type. Overall, these contracts provide a framework for creating upgradeable proxies for Aragon apps, allowing for efficient storage management and upgradeability.
