RentalExchange App Wallet

Smart contract wallet for borrowing NFTs on the NFT Rental Exchange.

WARNING: This code has not been comprehensively tested or audited. The author is not responsible for any loss of funds. Meanwhile, please open an issue or a PR if you find any bugs or vulnerabilities.

Contracts

• NFTNFTWallet.sol
  Singleton contract that implements the actual wallet functionality. Users can call execTransaction method to send transactions, but these transactions will be checked against the WalletPolicy and transactions prohibited by this policy will not be executed.
• NFTNFTWalletProxy.sol
  Proxy contract that routes requests to NFTNFTWallet singleton. This contract represents the "App Wallet." A user is issued a new instance of this contract and they interact with that instance.
• NFTNFTWalletProxyFactory.sol
  A factory for the proxy contract (app wallet). It creates and initializes new instances of the proxy contract. This contracts also keeps track of the issued proxies so that external contracts can check if a proxy is legitimately issued by this factory.
• WalletPolicy.sol
  A contract that keeps track of whitelisted contracts the app wallet can interact with. Two levels of gating happens in the configuration: allowed and scoped. If a target is not allowed, no transactions can be send to this target. If a target is allowed but not scoped, any transactions to this target can be sent. If a target is allowed and scoped, only whitelisted methods can be called.

Deployed Contract Addresses

WalletPolicy

mainnet:
goerli: 0x852eeE31C2474CA08497b882A53C1317Af2944D9

NFTNFTWallet

mainnet:
goerli: 0xE59e8a3050A744538bD0E7Bd99c51366a3F1d534

NFTNFTWalletProxyFactory

mainnet:
goerli: 0xf3B203294eE4EeB6eea4059dE61E1c9206D4d3B9

Usage

Install Foundry

Download foundryup:

$ curl -L https://foundry.paradigm.xyz | bash

Then install Foundry:

$ foundryup

Clone the repo:

$ git clone https://github.com/ian-shim/app-wallet.git

Running tests

Unit tests:

$ forge test [-vvvv]

Integration tests require forking mode:
(integration tests fork and use actual deployed contracts. Make sure the deployed addresses in the tests are correct)

$ forge test --fork-url <NODE_URL> --chain-id <CHAIN_ID> --etherscan-api-key <ETHERSCAN_KEY>