Repository: Anish-Agnihotri/MultiFaucet Branch: master Commit: 9d5a2c4db396 Files: 32 Total size: 101.1 KB Directory structure: gitextract_5logdppc/ ├── .gitattributes ├── .gitignore ├── .gitmodules ├── LICENSE ├── README.md ├── contracts/ │ ├── .dapprc │ ├── Makefile │ ├── README.md │ ├── remappings.txt │ └── src/ │ ├── MultiFaucet.sol │ ├── interfaces/ │ │ └── IERC20.sol │ └── test/ │ ├── MultiFaucet.t.sol │ └── utils/ │ ├── DSTestExtended.sol │ ├── ERC20Mintable.sol │ ├── MultiFaucetTest.sol │ └── MultiFaucetUser.sol └── frontend/ ├── .gitignore ├── README.md ├── components/ │ └── Layout.tsx ├── next-env.d.ts ├── package.json ├── pages/ │ ├── _app.tsx │ ├── api/ │ │ ├── auth/ │ │ │ └── [...nextauth].ts │ │ └── claim/ │ │ ├── new.ts │ │ └── status.ts │ └── index.tsx ├── styles/ │ ├── Home.module.scss │ ├── Layout.module.scss │ └── global.scss ├── tsconfig.json └── utils/ ├── addresses.ts └── dates.ts ================================================ FILE CONTENTS ================================================ ================================================ FILE: .gitattributes ================================================ *.sol linguist-language=Solidity contracts/.dapprc linguist-language=Shell ================================================ FILE: .gitignore ================================================ node_modules .pnp .pnp.js # testing coverage # next.js .next/ out/ # production build # misc .DS_Store *.pem # debug npm-debug.log* yarn-debug.log* yarn-error.log* # local env files .env.local .env.development.local .env.test.local .env.production.local # vercel .vercel # VSCode .vscode ================================================ FILE: .gitmodules ================================================ [submodule "contracts/lib/ds-test"] path = contracts/lib/ds-test url = https://github.com/dapphub/ds-test [submodule "contracts/lib/openzeppelin-contracts"] path = contracts/lib/openzeppelin-contracts url = https://github.com/OpenZeppelin/openzeppelin-contracts ================================================ FILE: LICENSE ================================================ GNU AFFERO GENERAL PUBLIC LICENSE Version 3, 19 November 2007 Copyright (C) 2007 Free Software Foundation, Inc. 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Copyright (C) This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more details. You should have received a copy of the GNU Affero General Public License along with this program. If not, see . Also add information on how to contact you by electronic and paper mail. If your software can interact with users remotely through a computer network, you should also make sure that it provides a way for users to get its source. For example, if your program is a web application, its interface could display a "Source" link that leads users to an archive of the code. There are many ways you could offer source, and different solutions will be better for different programs; see section 13 for the specific requirements. You should also get your employer (if you work as a programmer) or school, if any, to sign a "copyright disclaimer" for the program, if necessary. For more information on this, and how to apply and follow the GNU AGPL, see . ================================================ FILE: README.md ================================================ # MultiFaucet MultiFaucet drips ETH, tokens, and NFTs across many testnet networks, at once. READMEs can be found individual subdirectories: - [MultiFaucet contracts](https://github.com/Anish-Agnihotri/MultiFaucet/tree/master/contracts) - [Associated frontend](https://github.com/Anish-Agnihotri/MultiFaucet/tree/master/frontend) ## License [GNU Affero GPL v3.0](https://github.com/Anish-Agnihotri/MultiFaucet/blob/master/LICENSE) ## Disclaimer _These smart contracts are being provided as is. No guarantee, representation or warranty is being made, express or implied, as to the safety or correctness of the user interface or the smart contracts. They have not been audited and as such there can be no assurance they will work as intended, and users may experience delays, failures, errors, omissions or loss of transmitted information. Paradigm is not liable for any of the foregoing. Users should proceed with caution and use at their own risk._ ================================================ FILE: contracts/.dapprc ================================================ # Make dependencies available export DAPP_REMAPPINGS=$(cat remappings.txt) export DAPP_SOLC_VERSION=0.8.0 export DAPP_BUILD_OPTIMIZE=1 export DAPP_BUILD_OPTIMIZE_RUNS=1000000 export DAPP_LINK_TEST_LIBRARIES=0 export DAPP_TEST_VERBOSITY=1 export DAPP_TEST_SMTTIMEOUT=500000 # Allow using the local network's RPC accounts if `ETH_FROM` # is not in the keystore export ETH_RPC_ACCOUNTS=yes if [ "$DEEP_FUZZ" == "true" ] then export DAPP_TEST_FUZZ_RUNS=50000 # Fuzz for a long time if DEEP_FUZZ is set to true. else export DAPP_TEST_FUZZ_RUNS=100 # Only fuzz briefly if DEEP_FUZZ is not set to true. fi ================================================ FILE: contracts/Makefile ================================================ # install solc version SOLC_VERSION := 0_8_0 solc:; nix-env -f https://github.com/dapphub/dapptools/archive/master.tar.gz -iA solc-static-versions.solc_${SOLC_VERSION} # Build & test build :; dapp build test :; dapp test clean :; dapp clean ================================================ FILE: contracts/README.md ================================================ # MultiFaucet ## About MultiFaucet is a simple [faucet](https://en.wikipedia.org/wiki/History_of_bitcoin#Bitcoin_faucets) that drips `Ether/Matic`, `Wrapped Ether/Wrapped Matic`, `DAI Stablecoin`, and mints ERC721 NFTs to a recipient. It enables a super operator to `drip` and `drain` to a recipient, add approved operators, or update the super operator. Approved operators can only `drip` to a recipient. ## Build and Test ```bash # Collect repo git clone https://github.com/anish-agnihotri/MultiFaucet cd MultiFaucet/contracts # Run tests make make test ``` ## Installing the toolkit If you do not have DappTools already installed, you'll need to run the commands below: ### Install Nix ```bash # User must be in sudoers curl -L https://nixos.org/nix/install | sh # Run this or login again to use Nix . "$HOME/.nix-profile/etc/profile.d/nix.sh" ``` ### Install DappTools ```bash curl https://dapp.tools/install | sh ``` ## License [GNU Affero GPL v3.0](https://github.com/Anish-Agnihotri/MultiFaucet/blob/master/LICENSE) ## Credits - [@gakonst/lootloose](https://github.com/gakonst/lootloose) for DappTools info - ds-test, OpenZeppelin for inherited libraries ================================================ FILE: contracts/remappings.txt ================================================ ds-test/=lib/ds-test/src/ @openzeppelin/=lib/openzeppelin-contracts/ ================================================ FILE: contracts/src/MultiFaucet.sol ================================================ // SPDX-License-Identifier: AGPL-3.0-only pragma solidity ^0.8.0; /// ============ Imports ============ import "./interfaces/IERC20.sol"; // ERC20 minified interface import "@openzeppelin/contracts/token/ERC721/ERC721.sol"; // OZ: ERC721 /// @title MultiFaucet /// @author Anish Agnihotri /// @notice Drips ETH, DAI, wETH, and mints NFTs contract MultiFaucet is ERC721 { /// ============ Immutable storage ============ /// @notice DAI ERC20 token IERC20 public immutable DAI; /// @notice wETH ERC20 token IERC20 public immutable WETH; /// ============ Mutable storage ============ /// @notice Default NFT uri string public URI; /// @notice Count of minted NFTs uint256 public nftsMinted; /// @notice Number of ERC721 NFTs to mint uint256 public NFT_COUNT = 5; /// @notice ETH to disperse uint256 public ETH_AMOUNT = 5e18; /// @notice DAI to disperse uint256 public DAI_AMOUNT = 5_000e18; /// @notice wETH to disperse uint256 public WETH_AMOUNT = 5e18; /// @notice Addresses of approved operators mapping(address => bool) public approvedOperators; /// @notice Addresses of super operators mapping(address => bool) public superOperators; /// ============ Modifiers ============ /// @notice Requires sender to be contract super operator modifier isSuperOperator() { // Ensure sender is super operator require(superOperators[msg.sender], "Not super operator"); _; } /// @notice Requires sender to be contract approved operator modifier isApprovedOperator() { // Ensure sender is in approved operators or is super operator require( approvedOperators[msg.sender] || superOperators[msg.sender], "Not approved operator" ); _; } /// ============ Events ============ /// @notice Emitted after faucet drips to a recipient /// @param recipient address dripped to event FaucetDripped(address indexed recipient); /// @notice Emitted after faucet drained to a recipient /// @param recipient address drained to event FaucetDrained(address indexed recipient); /// @notice Emitted after operator status is updated /// @param operator address being updated /// @param status new operator status event OperatorUpdated(address indexed operator, bool status); /// @notice Emitted after super operator is updated /// @param operator address being updated /// @param status new operator status event SuperOperatorUpdated(address indexed operator, bool status); /// ============ Constructor ============ /// @notice Creates a new MultiFaucet contract /// @param _DAI address of DAI contract /// @param _WETH address of wETH contract /// @param _URI string of token URI constructor(address _DAI, address _WETH, string memory _URI) ERC721("MultiFaucet NFT", "MFNFT") { DAI = IERC20(_DAI); WETH = IERC20(_WETH); URI = _URI; superOperators[msg.sender] = true; } /// ============ Functions ============ /// @notice Drips and mints tokens to recipient /// @param _recipient to drip tokens to function drip(address _recipient) external isApprovedOperator { // Drip Ether (bool sent,) = _recipient.call{value: ETH_AMOUNT}(""); require(sent, "Failed dripping ETH"); // Drip DAI require(DAI.transfer(_recipient, DAI_AMOUNT), "Failed dripping DAI"); // Drip wETH require(WETH.transfer(_recipient, WETH_AMOUNT), "Failed dripping wETH"); // Mint NFTs for (uint256 i = 1; i <= NFT_COUNT; i++) { _mint(_recipient, nftsMinted + i); } nftsMinted += NFT_COUNT; emit FaucetDripped(_recipient); } /// @notice Returns number of available drips by token /// @return ethDrips — available Ether drips /// @return daiDrips — available DAI drips /// @return wethDrips — available wETH drips function availableDrips() public view returns (uint256 ethDrips, uint256 daiDrips, uint256 wethDrips) { ethDrips = address(this).balance / ETH_AMOUNT; daiDrips = DAI.balanceOf(address(this)) / DAI_AMOUNT; wethDrips = WETH.balanceOf(address(this)) / WETH_AMOUNT; } /// @notice Allows super operator to drain contract of tokens /// @param _recipient to send drained tokens to function drain(address _recipient) external isSuperOperator { // Drain all Ether (bool sent,) = _recipient.call{value: address(this).balance}(""); require(sent, "Failed draining ETH"); // Drain all DAI uint256 daiBalance = DAI.balanceOf(address(this)); require(DAI.transfer(_recipient, daiBalance), "Failed draining DAI"); // Drain all wETH uint256 wethBalance = WETH.balanceOf(address(this)); require(WETH.transfer(_recipient, wethBalance), "Failed dripping wETH"); emit FaucetDrained(_recipient); } /// @notice Allows super operator to update approved drip operator status /// @param _operator address to update /// @param _status of operator to toggle (true == allowed to drip) function updateApprovedOperator(address _operator, bool _status) external isSuperOperator { approvedOperators[_operator] = _status; emit OperatorUpdated(_operator, _status); } /// @notice Allows super operator to update super operator /// @param _operator address to update /// @param _status of operator to toggle (true === is super operator) function updateSuperOperator(address _operator, bool _status) external isSuperOperator { superOperators[_operator] = _status; emit SuperOperatorUpdated(_operator, _status); } /// @notice Override internal ERC721 function to return single image per NFT /// @param tokenId of ERC721 NFT function tokenURI(uint256 tokenId) public view virtual override returns (string memory) { // OpenZeppelin check: ensure token exists require(_exists(tokenId), "ERC721Metadata: URI query for nonexistent token"); return URI; } /// @notice Allows super operator to update NFT uri /// @param _URI of collection function updateTokenURI(string memory _URI) external isSuperOperator { URI = _URI; } /// @notice Allows super operator to update drip amounts /// @param _nftCount number of NFTs to mint per drip /// @param _ethAmount ETH to drip /// @param _daiAmount DAI to drip /// @param _wethAmount wETH to drip function updateDripAmounts( uint256 _nftCount, uint256 _ethAmount, uint256 _daiAmount, uint256 _wethAmount ) external isSuperOperator { NFT_COUNT = _nftCount; ETH_AMOUNT = _ethAmount; DAI_AMOUNT = _daiAmount; WETH_AMOUNT = _wethAmount; } /// @notice Allows receiving ETH receive() external payable {} } ================================================ FILE: contracts/src/interfaces/IERC20.sol ================================================ // SPDX-License-Identifier: AGPL-3.0-only pragma solidity ^0.8.0; interface IERC20 { /// @notice ERC0 transfer tokens function transfer(address recipient, uint256 amount) external returns (bool); /// @notice ERC20 balance of address function balanceOf(address account) external view returns (uint256); } ================================================ FILE: contracts/src/test/MultiFaucet.t.sol ================================================ // SPDX-License-Identifier: AGPL-3.0-only pragma solidity ^0.8.0; /// ============ Imports ============ import "./utils/MultiFaucetTest.sol"; // MultiFaucet ds-test /// ============ Libraries ============ library URIs { string constant defaultURI = 'https://test.com'; string constant alternativeURI = 'https://alternative.com'; } library Errors { string constant NotSuperOperator = 'Not super operator'; string constant NotApprovedOperator = 'Not approved operator'; } /// ============ Functionality testing ============ contract Tests is MultiFaucetTest { /// @notice Allow dripping to recipient, if super operator function testDrip() public { // Bob before balances uint256 bobETHBalanceBefore = BOB.ETHBalance(); uint256 bobDAIBalanceBefore = BOB.DAIBalance(); uint256 bobWETHBalanceBefore = BOB.WETHBalance(); uint256 bobNFTCountBefore = BOB.NFTBalance(); // Alice drips to bob ALICE.drip(address(BOB)); // Bob after balances assertEq(BOB.ETHBalance(), bobETHBalanceBefore + 5 ether); assertEq(BOB.DAIBalance(), bobDAIBalanceBefore + 5_000e18); assertEq(BOB.WETHBalance(), bobWETHBalanceBefore + 5e18); assertEq(BOB.NFTBalance(), bobNFTCountBefore + 5); // Check token uris for (uint256 i = 1; i <= 5; i++) { assertEq(FAUCET.tokenURI(i), URIs.defaultURI); } } /// @notice Prevent dripping if not approved operator function testCannotDripIfNotOperator() public { assertErrorFunctionWithAddress( BOB.drip, address(ALICE), Errors.NotApprovedOperator ); } /// @notice Can add approved operator and they can drip function testAddApprovedOperator() public { // Alice adds Bob as approved operator ALICE.updateApprovedOperator(address(BOB), true); // Ensure Bob is an approved operator assertTrue(FAUCET.approvedOperators(address(BOB))); // Ensure Bob can drip BOB.drip(address(ALICE)); } /// @notice Can remove approved operator and they can't drip function testRemoveApprovedOperator() public { // Alice adds Bob as approved operator ALICE.updateApprovedOperator(address(BOB), true); assertTrue(FAUCET.approvedOperators(address(BOB))); // Alice removes Bob as approved operator ALICE.updateApprovedOperator(address(BOB), false); assertTrue(!FAUCET.approvedOperators(address(BOB))); // Bob can no longer drip assertErrorFunctionWithAddress( BOB.drip, address(ALICE), Errors.NotApprovedOperator ); } /// @notice Can update super operator function testUpdateSuperOperator() public { // Alice gives super operatorship to BOB ALICE.updateSuperOperator(address(BOB), true); // Verify Bob is now a super operator assertTrue(FAUCET.superOperators(address(BOB))); // Alice removes her super operatorship ALICE.updateSuperOperator(address(ALICE), false); // Alice can no longer drip assertErrorFunctionWithAddress( ALICE.drip, address(BOB), Errors.NotApprovedOperator ); // Bob can add Alice to super operators BOB.updateApprovedOperator(address(ALICE), true); assertTrue(FAUCET.approvedOperators(address(ALICE))); // Alice can now drip ALICE.drip(address(BOB)); // Alice can still not update super operator assertErrorFunctionWithAddressAndBool( ALICE.updateSuperOperator, address(ALICE), true, Errors.NotSuperOperator ); } /// @notice Can drain contract if super operator function testCanDrainFaucet() public { // Bob before balances uint256 bobETHBalanceBefore = BOB.ETHBalance(); uint256 bobDAIBalanceBefore = BOB.DAIBalance(); uint256 bobWETHBalanceBefore = BOB.WETHBalance(); // Alice drains to bob ALICE.drain(address(BOB)); // Bob after balances assertEq(BOB.ETHBalance(), bobETHBalanceBefore + 100 ether); assertEq(BOB.DAIBalance(), bobDAIBalanceBefore + 100_000e18); assertEq(BOB.WETHBalance(), bobWETHBalanceBefore + 100e18); } /// @notice Cannot drain contract if not super operator function testCannotDrainIfNotSuperOperator() public { assertErrorFunctionWithAddress( BOB.drain, address(BOB), Errors.NotSuperOperator ); } /// @notice Returns correct number of available drips function testCorrectDripCount() public { (uint256 ethDrips, uint256 daiDrips, uint256 wethDrips) = FAUCET.availableDrips(); assertEq(ethDrips, 20); assertEq(daiDrips, 20); assertEq(wethDrips, 20); } /// @notice Allows super operator to update collection URI function testAllowsUpdatingURI() public { // Drip to Bob ALICE.drip(address(BOB)); // Ensure old URI for bobs tokens for (uint256 i = 1; i <= 5; i++) { assertEq(FAUCET.tokenURI(i), URIs.defaultURI); } // Update URI ALICE.updateTokenURI(URIs.alternativeURI); // Drip to Bob ALICE.drip(address(BOB)); // Ensure new URI for bobs tokens for (uint256 i = 1; i <= 10; i++) { assertEq(FAUCET.tokenURI(i), URIs.alternativeURI); } } /// @notice Allows super operators to update drip amounts function testAllowsUpdatingDripAmounts() public { // Bob before balances uint256 bobETHBalanceBefore = BOB.ETHBalance(); uint256 bobDAIBalanceBefore = BOB.DAIBalance(); uint256 bobWETHBalanceBefore = BOB.WETHBalance(); uint256 bobNFTCountBefore = BOB.NFTBalance(); // Alice updates drip amounts ALICE.updateDripAmounts(1, 1e18, 1000e18, 1e18); // Alice drips to bob ALICE.drip(address(BOB)); // Bob after balances assertEq(BOB.ETHBalance(), bobETHBalanceBefore + 1 ether); assertEq(BOB.DAIBalance(), bobDAIBalanceBefore + 1_000e18); assertEq(BOB.WETHBalance(), bobWETHBalanceBefore + 1e18); assertEq(BOB.NFTBalance(), bobNFTCountBefore + 1); } } ================================================ FILE: contracts/src/test/utils/DSTestExtended.sol ================================================ // SPDX-License-Identifier: AGPL-3.0-only pragma solidity ^0.8.0; /// ============ Imports ============ import "ds-test/test.sol"; // ds-test /// @title DSTestExtended /// @author Anish Agnihotri /// @notice Extends DSTest with more generic assertions for revert checks contract DSTestExtended is DSTest { /// @notice Calls function and checks for matching revert message /// @param erroringFunction to call /// @param param to pass to function /// @param message to check against revert error string function assertErrorFunctionWithAddress( function(address) external erroringFunction, address param, string memory message ) internal { try erroringFunction(param) { fail(); } catch Error(string memory error) { // Assert revert error matches expected message assertEq(error, message); } } /// @notice Calls function and checks for matching revert message /// @param erroringFunction to call /// @param _addr to pass to function /// @param _bool bool to pass to function /// @param message to check against revert error string function assertErrorFunctionWithAddressAndBool( function(address, bool) external erroringFunction, address _addr, bool _bool, string memory message ) internal { try erroringFunction(_addr, _bool) { fail(); } catch Error(string memory error) { // Assert revert error matches expected message assertEq(error, message); } } } ================================================ FILE: contracts/src/test/utils/ERC20Mintable.sol ================================================ // SPDX-License-Identifier: AGPL-3.0-only pragma solidity ^0.8.0; /// ============ Imports ============ import { ERC20 } from "@openzeppelin/contracts/token/ERC20/ERC20.sol"; // OZ: ERC20 /// @title ERC20Mintable /// @author Anish Agnihotri /// @notice Exposes ERC20 minting as external function contract ERC20Mintable is ERC20 { // Initialize ERC20 constructor( string memory name_, string memory symbol_ ) ERC20(name_, symbol_) {} /// @notice Expose ERC20 minting as external function /// @param account to mint to /// @param amount to mint function mint(address account, uint256 amount) external { _mint(account, amount); } } ================================================ FILE: contracts/src/test/utils/MultiFaucetTest.sol ================================================ // SPDX-License-Identifier: AGPL-3.0-only pragma solidity ^0.8.0; /// ============ Imports ============ import "./DSTestExtended.sol"; // DSTestExtended import "./ERC20Mintable.sol"; // ERC20Mintable import "./MultiFaucetUser.sol"; // Faucet user import "../../MultiFaucet.sol"; // MultiFaucet contract MultiFaucetTest is DSTestExtended { /// ============ Storage ============ /// @dev DAI token ERC20Mintable internal DAI; /// @dev wETH token ERC20Mintable internal WETH; /// @dev MultiFaucet contract MultiFaucet internal FAUCET; /// @dev User: Alice (default super operator) MultiFaucetUser internal ALICE; /// @dev User: Bob MultiFaucetUser internal BOB; /// ============ Setup test suite ============ function setUp() public virtual { // Setup tokens DAI = new ERC20Mintable("DAI Stablecoin", "DAI"); WETH = new ERC20Mintable("Wrapped Ether", "wETH"); // Create faucet FAUCET = new MultiFaucet(address(DAI), address(WETH), "https://test.com"); // Fund faucet (bool success, ) = payable(address(FAUCET)).call{value: 100 ether}(""); require(success, "Failed funding faucet with ETH"); DAI.mint(address(FAUCET), 100_000e18); WETH.mint(address(FAUCET), 100e18); // Setup faucet users ALICE = new MultiFaucetUser(FAUCET, address(DAI), address(WETH)); BOB = new MultiFaucetUser(FAUCET, address(DAI), address(WETH)); // Make Alice superOperator FAUCET.updateSuperOperator(address(ALICE), true); } } ================================================ FILE: contracts/src/test/utils/MultiFaucetUser.sol ================================================ // SPDX-License-Identifier: AGPL-3.0-only pragma solidity ^0.8.0; /// ============ Imports ============ import "../../MultiFaucet.sol"; // MultiFaucet import "../../interfaces/IERC20.sol"; // ERC20 minified interface import "@openzeppelin/contracts/token/ERC721/utils/ERC721Holder.sol"; // OZ: ERC721 recipient /// @title MultiFaucetUser /// @author Anish Agnihotri /// @notice Mock user to test interacting with MultiFaucet contract MultiFaucetUser is ERC721Holder { /// ============ Immutable storage ============ /// @dev DAI contract IERC20 immutable internal DAI; /// @dev wETH contract IERC20 immutable internal WETH; /// @dev Faucet contract MultiFaucet immutable internal FAUCET; /// ============ Constructor ============ /// @notice Creates a new MultiFaucetUser /// @param _DAI contract address /// @param _WETH contract address /// @param _FAUCET contract constructor(MultiFaucet _FAUCET, address _DAI, address _WETH) { DAI = IERC20(_DAI); WETH = IERC20(_WETH); FAUCET = _FAUCET; } /// ============ Helper functions ============ /// @notice Returns ETH balance of user function ETHBalance() public view returns (uint256) { return address(this).balance; } /// @notice Returns DAI balance of user function DAIBalance() public view returns (uint256) { return DAI.balanceOf(address(this)); } /// @notice Returns wETH balance of user function WETHBalance() public view returns (uint256) { return WETH.balanceOf(address(this)); } /// @notice Returns NFT count of user function NFTBalance() public view returns (uint256) { return FAUCET.balanceOf(address(this)); } /// ============ Inherited Functionality ============ /// @notice Drips from faucet to recipient /// @param _recipient to drip to function drip(address _recipient) public { FAUCET.drip(_recipient); } /// @notice Drains faucet to a recipient address /// @param _recipient to drain to function drain(address _recipient) public { FAUCET.drain(_recipient); } /// @notice Adds or removes approved operator /// @param _operator address /// @param _status to update for operator (true == allowed to drip) function updateApprovedOperator( address _operator, bool _status ) public { FAUCET.updateApprovedOperator(_operator, _status); } /// @notice Updates super operator /// @param _operator address /// @param _status of operator function updateSuperOperator(address _operator, bool _status) public { FAUCET.updateSuperOperator(_operator, _status); } /// @notice Updates token collection URI /// @param _URI new collection URI function updateTokenURI(string memory _URI) public { FAUCET.updateTokenURI(_URI); } /// @notice Updates drip amounts /// @param _nftCount number of NFTs to mint per drip /// @param _ethAmount ETH to drip /// @param _daiAmount DAI to drip /// @param _wethAmount wETH to drip function updateDripAmounts( uint256 _nftCount, uint256 _ethAmount, uint256 _daiAmount, uint256 _wethAmount ) public { FAUCET.updateDripAmounts( _nftCount, _ethAmount, _daiAmount, _wethAmount ); } /// @notice Allows receiving ETH receive() external payable {} } ================================================ FILE: frontend/.gitignore ================================================ .vercel ================================================ FILE: frontend/README.md ================================================ # Frontend ## About Frontend to accompany [MultiFaucet contracts](https://github.com/Anish-Agnihotri/MultiFaucet/tree/master/contracts). Authenticates user with Twitter OAuth, stores claim for 24h in Redis, calls drip function on contract. ## Run locally ```bash # Install dependencies npm install # Update environment variables cp .env.sample .env.local vim .env.local # Run npm run dev ``` ## License [GNU Affero GPL v3.0](https://github.com/Anish-Agnihotri/MultiFaucet/blob/master/LICENSE) ================================================ FILE: frontend/components/Layout.tsx ================================================ import styles from "styles/Layout.module.scss"; // Styles import { default as HTMLHead } from "next/head"; // Meta // Page layout export default function Layout({ children, }: { children: (JSX.Element | null)[]; }) { return (
{/* Meta + Head */} {/* Layout sizer */}
{children}
{/* Footer */}
); } // Head + Meta function Head() { return ( {/* Google Fonts */} {/* Favicon */} {/* Primary Meta Tags */} Paradigm MultiFaucet | Bootstrap your testnet wallet {/* OG + Facebook */} {/* Twitter */} ); } // Footer function Footer() { return (
{/* Disclaimer */}

These smart contracts are being provided as is. No guarantee, representation or warranty is being made, express or implied, as to the safety or correctness of the user interface or the smart contracts. They have not been audited and as such there can be no assurance they will work as intended, and users may experience delays, failures, errors, omissions or loss of transmitted information. Paradigm is not liable for any of the foregoing. Users should proceed with caution and use at their own risk.

); } ================================================ FILE: frontend/next-env.d.ts ================================================ /// /// /// // NOTE: This file should not be edited // see https://nextjs.org/docs/basic-features/typescript for more information. ================================================ FILE: frontend/package.json ================================================ { "name": "multifaucet", "author": "Anish Agnihotri", "version": "0.1.0", "private": true, "license": "MIT", "scripts": { "dev": "next dev", "build": "next build", "start": "next start", "lint": "next lint" }, "dependencies": { "@slack/web-api": "^6.5.1", "axios": "^0.24.0", "ethers": "^5.4.7", "ioredis": "^4.28.0", "next": "^12.0.4", "next-auth": "^3.29.0", "react": "17.0.2", "react-dom": "17.0.2", "react-toastify": "^8.0.3", "sass": "^1.42.1" }, "devDependencies": { "@types/ioredis": "^4.27.7", "@types/react": "17.0.26", "eslint": "7.32.0", "eslint-config-next": "11.1.2", "typescript": "4.4.3" } } ================================================ FILE: frontend/pages/_app.tsx ================================================ import "styles/global.scss"; // Global styles import type { AppProps } from "next/app"; // Types import { Provider } from "next-auth/client"; // Next auth state import "react-toastify/dist/ReactToastify.css"; // Toast styles import { ToastContainer } from "react-toastify"; // Toast notifications export default function MultiFaucet({ Component, pageProps }: AppProps) { return ( // Wrap app in auth session provider {/* Toast container */} {/* Site */} ); } ================================================ FILE: frontend/pages/api/auth/[...nextauth].ts ================================================ import NextAuth from "next-auth"; // Next auth import Providers from "next-auth/providers"; // Twitter provider export default NextAuth({ providers: [ // Twitter OAuth provider Providers.Twitter({ clientId: process.env.TWITTER_CLIENT_ID, clientSecret: process.env.TWITTER_CLIENT_SECRET, }), ], // Custom page: pages: { // On error, throw to home error: "/", }, // Use JWT session: { jwt: true, // 30 day expiry maxAge: 30 * 24 * 60 * 60, // Refresh JWT on each login updateAge: 0, }, jwt: { // JWT secret secret: process.env.NEXTAUTH_JWT_SECRET, }, callbacks: { // On signin + signout jwt: async (token, user, account, profile) => { // Check if user is signing in (versus logging out) const isSignIn = user ? true : false; // If signing in if (isSignIn) { // Attach additional parameters (twitter id + handle + anti-bot measures) token.twitter_id = account?.id; token.twitter_handle = profile?.screen_name; token.twitter_num_tweets = profile?.statuses_count; token.twitter_num_followers = profile?.followers_count; token.twitter_created_at = profile?.created_at; } // Resolve JWT return Promise.resolve(token); }, // On session retrieval session: async (session, user) => { // Attach additional params from JWT to session session.twitter_id = user.twitter_id; session.twitter_handle = user.twitter_handle; session.twitter_num_tweets = user.twitter_num_tweets; session.twitter_num_followers = user.twitter_num_followers; session.twitter_created_at = user.twitter_created_at; // Resolve session return Promise.resolve(session); }, }, }); ================================================ FILE: frontend/pages/api/claim/new.ts ================================================ import Redis from "ioredis"; // Redis import { ethers } from "ethers"; // Ethers import { WebClient } from "@slack/web-api"; // Slack import { isValidInput } from "pages/index"; // Address check import parseTwitterDate from "utils/dates"; // Parse Twitter dates import { getSession } from "next-auth/client"; // Session management import { hasClaimed } from "pages/api/claim/status"; // Claim status import type { NextApiRequest, NextApiResponse } from "next"; // Types // Setup whitelist (Anish) const whitelist: string[] = ["1078014622525988864"]; // Setup redis client const client = new Redis(process.env.REDIS_URL); // Setup slack client const slack = new WebClient(process.env.SLACK_ACCESS_TOKEN); const slackChannel: string = process.env.SLACK_CHANNEL ?? ""; /** * Post message to slack channel * @param {string} message to post */ async function postSlackMessage(message: string): Promise { await slack.chat.postMessage({ channel: slackChannel, text: message, // Ping user on error link_names: true, }); } /** * Generate Alchemy RPC endpoint url from partials * @param {string} partial of network * @returns {string} full rpc url */ function generateAlchemy(partial: string): string { // Combine partial + API key return `https://${partial}/v2/${process.env.ALCHEMY_API_KEY}`; } // Setup networks const ARBITRUM: number = 421611; const mainRpcNetworks: Record = { //3: generateAlchemy("eth-ropsten.alchemyapi.io"), 4: generateAlchemy("eth-rinkeby.alchemyapi.io"), 5: generateAlchemy("eth-goerli.alchemyapi.io"), 42: generateAlchemy("eth-kovan.alchemyapi.io"), }; const secondaryRpcNetworks: Record = { 69: generateAlchemy("opt-kovan.g.alchemy.com"), //1287: "https://rpc.api.moonbase.moonbeam.network", 80001: generateAlchemy("polygon-mumbai.g.alchemy.com"), 421611: generateAlchemy("arb-rinkeby.g.alchemy.com"), //43113: "https://api.avax-test.network/ext/bc/C/rpc", }; // Setup faucet interface const iface = new ethers.utils.Interface([ "function drip(address _recipient) external", ]); /** * Generates tx input data for drip claim * @param {string} recipient address * @returns {string} encoded input data */ function generateTxData(recipient: string): string { // Encode address for drip function return iface.encodeFunctionData("drip", [recipient]); } /** * Collects StaticJsonRpcProvider by network * @param {number} network id * @returns {ethers.providers.StaticJsonRpcProvider} provider */ function getProviderByNetwork( network: number ): ethers.providers.StaticJsonRpcProvider { // Collect all RPC URLs const rpcNetworks = { ...mainRpcNetworks, ...secondaryRpcNetworks }; // Collect alchemy RPC URL const rpcUrl = rpcNetworks[network]; // Return static provider return new ethers.providers.StaticJsonRpcProvider(rpcUrl); } /** * Collects nonce by network (cache first) * @param {number} network id * @returns {Promise} network account nonce */ async function getNonceByNetwork(network: number): Promise { // Collect nonce from redis const redisNonce: string | null = await client.get(`nonce-${network}`); // If no redis nonce if (redisNonce == null) { // Update to last network nonce const provider = getProviderByNetwork(network); return await provider.getTransactionCount( // Collect nonce for operator process.env.NEXT_PUBLIC_OPERATOR_ADDRESS ?? "" ); } else { // Else, return cached nonce return Number(redisNonce); } } /** * Returns populated drip transaction for a network * @param {ethers.Wallet} wallet without RPC network connected * @param {number} network id * @param {string} data input for tx */ async function processDrip( wallet: ethers.Wallet, network: number, data: string ): Promise { // Collect provider const provider = getProviderByNetwork(network); // Connect wallet to network const rpcWallet = wallet.connect(provider); // Collect nonce for network const nonce = await getNonceByNetwork(network); // Collect gas price * 2 for network const gasPrice = (await provider.getGasPrice()).mul(2); // Update nonce for network in redis w/ 5m ttl await client.set(`nonce-${network}`, nonce + 1, "EX", 300); // Return populated transaction try { await rpcWallet.sendTransaction({ to: process.env.FAUCET_ADDRESS ?? "", from: wallet.address, gasPrice, // Custom gas override for Arbitrum w/ min gas limit gasLimit: network === ARBITRUM ? 5_000_000 : 500_000, data, nonce, type: 0, }); } catch (e) { await postSlackMessage( `@anish Error dripping for ${provider.network.chainId}, ${String( (e as any).reason )}` ); // Delete nonce key to attempt at self-heal const delStatus: number = await client.del( `nonce-${provider.network.chainId}` ); await postSlackMessage(`Attempting self heal: ${delStatus}`); // Throw error throw new Error(`Error when processing drip for network ${network}`); } } export default async (req: NextApiRequest, res: NextApiResponse) => { // Collect session (force any for extra twitter params) const session: any = await getSession({ req }); // Collect address const { address, others }: { address: string; others: boolean } = req.body; if (!session) { // Return unauthed status return res.status(401).send({ error: "Not authenticated." }); } // Basic anti-bot measures const ONE_MONTH_SECONDS = 2629746; if ( // Less than 1 tweet session.twitter_num_tweets == 0 || // Less than 15 followers session.twitter_num_followers < 15 || // Less than 1 month old new Date().getTime() - parseTwitterDate(session.twitter_created_at).getTime() < ONE_MONTH_SECONDS ) { // Return invalid Twitter account status return res .status(400) .send({ error: "Twitter account does not pass anti-bot checks." }); } if (!address || !isValidInput(address)) { // Return invalid address status return res.status(400).send({ error: "Invalid address." }); } // Collect address let addr: string = address; // If address is ENS name if (~address.toLowerCase().indexOf(".eth")) { // Setup custom mainnet provider const provider = new ethers.providers.StaticJsonRpcProvider( `https://eth-mainnet.alchemyapi.io/v2/${process.env.ALCHEMY_API_KEY}` ); // Collect 0x address from ENS const resolvedAddress = await provider.resolveName(address); // If no resolver set if (!resolvedAddress) { // Return invalid ENS status return res .status(400) .send({ error: "Invalid ENS name. No reverse record." }); } // Else, set address addr = resolvedAddress; } const claimed: boolean = await hasClaimed(session.twitter_id); if (claimed) { // Return already claimed status return res.status(400).send({ error: "Already claimed in 24h window" }); } // Setup wallet w/o RPC provider const wallet = new ethers.Wallet(process.env.OPERATOR_PRIVATE_KEY ?? ""); // Generate transaction data const data: string = generateTxData(addr); // Networks to claim on (based on others toggle) const otherNetworks: Record = others ? secondaryRpcNetworks : {}; const claimNetworks: Record = { ...mainRpcNetworks, ...otherNetworks, }; // For each main network for (const networkId of Object.keys(claimNetworks)) { try { // Process faucet claims await processDrip(wallet, Number(networkId), data); } catch (e) { // If not whitelisted, force user to wait 15 minutes if (!whitelist.includes(session.twitter_id)) { // Update 24h claim status await client.set(session.twitter_id, "true", "EX", 900); } // If error in process, revert return res .status(500) .send({ error: "Error fully claiming, try again in 15 minutes." }); } } // If not whitelisted if (!whitelist.includes(session.twitter_id)) { // Update 24h claim status await client.set(session.twitter_id, "true", "EX", 86400); } return res.status(200).send({ claimed: address }); }; ================================================ FILE: frontend/pages/api/claim/status.ts ================================================ import Redis from "ioredis"; // Redis import { getSession } from "next-auth/client"; // Session management import type { NextApiRequest, NextApiResponse } from "next"; // Types // Setup redis client const client = new Redis(process.env.REDIS_URL); /** * Checks if a twitter id has claimed from faucet in last 24h * @param {string} twitter_id to check * @returns {Promise} claim status */ export async function hasClaimed(twitter_id: string): Promise { // Check if key exists const resp: string | null = await client.get(twitter_id); // If exists, return true, else return false return resp ? true : false; } export default async (req: NextApiRequest, res: NextApiResponse) => { // Collect session (force any for extra twitter params) const session: any = await getSession({ req }); if (session) { try { // Collect claim status const claimed: boolean = await hasClaimed(session.twitter_id); res.status(200).send({ claimed }); } catch { // If failure, return error checking status res.status(500).send({ error: "Error checking claim status." }); } } else { // Return unauthed status res.status(401).send({ error: "Not authenticated." }); } }; ================================================ FILE: frontend/pages/index.tsx ================================================ import axios from "axios"; // Requests import Image from "next/image"; // Image import { ethers } from "ethers"; // Address check import { toast } from "react-toastify"; // Toast notifications import Layout from "components/Layout"; // Layout wrapper import { useRouter } from "next/router"; // Router import styles from "styles/Home.module.scss"; // Styles import { ReactElement, useState } from "react"; // Local state + types import { getAddressDetails } from "utils/addresses"; // Faucet addresses import { hasClaimed } from "pages/api/claim/status"; // Claim status import { signIn, getSession, signOut } from "next-auth/client"; // Auth /** * Check if a provided address is valid * @param {string} address to check * @returns {boolean} validity */ function isValidAddress(address: string): boolean { try { // Check if address is valid + checksum match ethers.utils.getAddress(address); } catch { // If not, return false return false; } // Else, return true return true; } /** * Checks if a provider address or ENS name is valid * @param {string} address to check * @returns {boolean} validity */ export function isValidInput(address: string): boolean { // Check if ENS name if (~address.toLowerCase().indexOf(".eth")) { return true; } // Else, check if valid general address return isValidAddress(address); } export default function Home({ session, claimed: initialClaimed, }: { session: any; claimed: boolean; }) { // Collect prefilled address const { query: { addr }, } = useRouter(); // Fill prefilled address const prefilledAddress: string = addr && typeof addr === "string" ? addr : ""; // Claim address const [address, setAddress] = useState(prefilledAddress); // Claimed status const [claimed, setClaimed] = useState(initialClaimed); // First claim const [firstClaim, setFirstClaim] = useState(false); // Loading status const [loading, setLoading] = useState(false); // Claim other const [claimOther, setClaimOther] = useState(false); // Collect details about addresses const { networkCount, sortedAddresses } = getAddressDetails(); /** * Processes a claim to the faucet */ const processClaim = async () => { // Toggle loading setLoading(true); try { // Post new claim with recipient address await axios.post("/api/claim/new", { address, others: claimOther }); // Toast if success + toggle claimed toast.success("Tokens dispersed—check balances shortly!"); setClaimed(true); setFirstClaim(true); } catch (error: any) { // If error, toast error message toast.error(error.response.data.error); } // Toggle loading setLoading(false); }; return ( {/* CTA + description */}

Bootstrap your testnet wallet

MultiFaucet funds a wallet with{" "} , , , and{" "} across{" "} {`${networkCount} `} testnet networks, at once.
{/* Claim from facuet card */}
{/* Card title */}

Request Tokens

{/* Card content */}
{!session ? ( // If user is unauthenticated:
{/* Reasoning for Twitter OAuth */}

To prevent faucet botting, you must sign in with Twitter. We request{" "} read-only {" "} access.

{/* Sign in with Twitter */}
) : ( // If user is authenticated:
{claimed ? ( // If user has already claimed once in 24h

{firstClaim ? "You have successfully claimed tokens. You can request again in 24 hours." : "You have already claimed tokens today. Please try again in 24 hours."}

) : ( // If user has not claimed in 24h
{/* Claim description */}

Enter your Ethereum address to receive tokens:

{/* Address input */} setAddress(e.target.value)} /> {/* Other networks checkbox */}
setClaimOther((previous) => !previous)} />
{isValidInput(address) ? ( // If address is valid, allow claiming ) : ( // Else, force fix )}
)} {/* General among claimed or unclaimed, allow signing out */}
)}
{/* Faucet details card */}
{/* Card title */}

Faucet Details

{/* General information */}

General Information

Your Twitter account must have at least 1 Tweet, 15 followers, and be older than 1 month.

By default, the faucet drips on the Ethereum testnets (Rinkeby, Ropsten, Kovan, Görli). You can choose to receive a drip on other networks when requesting tokens.

You can claim from the faucet once every 24 hours.

{/* Network details */} {sortedAddresses.map((network) => { // For each network return (
{/* Network name */}

{network.formattedName} {network.connectionDetails ? ( {" "} ( connection details , {network.autoconnect ? ( // Display network add button if non-default network ) : null} ) ) : null} {/* Optional depleted status */} {network.depleted ? ( {" "} (maintenance mode) ) : null}

{/* Optional network disclaimer */} {network.disclaimer ? {network.disclaimer} : null} {Object.entries(network.addresses).map(([name, address]) => { // For each network address return ( // Address description: address

{name}:{" "}

); })}
); })}
); } /** * Returns button to add network to MetaMask * @param {temp: any} autoconnect details * @returns {ReactElement} */ function AddNetworkButton({ autoconnect }: { autoconnect: any }): ReactElement { /** * Adds network to MetaMask */ const addToMetaMask = async () => { // @ts-expect-error await window.ethereum.request({ method: "wallet_addEthereumChain", params: [autoconnect], }); }; return ( ); } /** * Returns token address component * @param {string} etherscanPrefix of address * @param {string?} name if displaying MM connect * @param {string} address to display * @param {string} ERC20 if asset is an ERC20 * @returns {ReactElement} */ function TokenAddress({ etherscanPrefix, name, address, ERC20, }: { etherscanPrefix: string; name?: string; address: string; ERC20: boolean; }): ReactElement { /** * Adds token to MetaMask */ const addToMetaMask = async () => { // @ts-expect-error await window.ethereum.request({ method: "wallet_watchAsset", params: { type: "ERC20", options: { address: address, symbol: name, decimals: 18, }, }, }); }; return ( {ethers.utils.getAddress(address)} {ERC20 ? : null} ); } /** * Returns token logo component * @param {string} name of token * @param {string} imageSrc of token image * @returns {ReactElement} */ function TokenLogo({ name, imageSrc, }: { name: string; imageSrc: string; }): ReactElement { return (
{`${name}`} {name}
); } export async function getServerSideProps(context: any) { // Collect session const session: any = await getSession(context); return { props: { session, // If session exists, collect claim status, else return false claimed: session ? await hasClaimed(session.twitter_id) : false, }, }; } ================================================ FILE: frontend/styles/Home.module.scss ================================================ // Top CTA .home__cta { text-align: center; > div { margin-top: 30px; margin-bottom: 10px; > a:hover { opacity: 0.8; } } > h1 { font-size: 2.5rem; color: #19232d; margin: 10px 0px; } > span { display: block; font-size: 18px; line-height: 28px; max-width: 500px; margin: 0px auto; color: #19232d; } } // Add network button .addNetworkButton { padding: 0px; background-color: transparent; border: none; margin-left: 2px; font-weight: 500; font-size: 16px; text-decoration: underline; cursor: pointer; &:hover { opacity: 0.8; } } // Individual address containers .address { > a { padding: 0.2em 0.4em; font-size: 85%; text-decoration: none; border-radius: 6px; color: inherit; background-color: rgba(175, 184, 193, 0.2); &:hover { opacity: 0.8; } } > button { padding: 0.2em 0.4em; margin-left: 10px; background-color: rgba(175, 184, 193, 0.2); border: none; border-radius: 6px; color: inherit; cursor: pointer; &:hover { opacity: 0.8; } } } // Individual token containers .token { background-color: white; padding: 0px 5px; border: 1px solid rgb(236, 237, 239); border-radius: 4px; display: inline-flex; vertical-align: middle; align-items: center; img { height: 18px; padding-right: 5px; } span { font-size: 16px; font-weight: 500; } } // Claim card .home__card { margin-top: 40px; background-color: white; border: 1px solid rgb(236, 237, 239); border-radius: 5px; box-shadow: 0px 6px 10px 1px #eeeeee; .home__card_title { border-bottom: 2px solid rgb(237, 238, 240); padding: 15px 20px; > h3 { margin: 0px; font-weight: 500; font-size: 18px; transform: translateY(1px); } } .home__card_content { padding: 20px; > p { line-height: 24px; } } } .home__card_content_section { padding: 20px; border-bottom: 1px solid rgb(237, 238, 240); > h4 { font-weight: 500; font-size: 16px; margin: 0px; a { text-decoration: none; color: inherit; text-decoration: underline; &:hover { opacity: 0.8; } } } .home__card_content_section_lh { line-height: 24px; } > span { display: block; color: #6e7a85; font-size: 14px; margin: 2px 0px; } > p { color: #19232d; margin: 10px 0px; &:nth-last-of-type(1) { margin-bottom: 0px; } } } // Depleted section .home__card_depleted { color: #e74747; } // Twitter sign-out button .content__twitter { margin-top: 20px; width: 100%; display: flex; justify-content: center; > button { background-color: transparent; border: none; cursor: pointer; text-decoration: underline; color: rgb(114, 114, 114); } } // Unauthenticated claim status .content__unauthenticated { p { margin: 0px; a { color: inherit; } } } // Authenticated claim status .content__authenticated { > button { display: inline-block; margin: 0px auto; } input { display: block; width: calc(100% - 14px); border: 2px solid rgb(234, 234, 234); font-size: 16px; padding: 10px 5px; border-radius: 5px; margin: 20px 0px 10px 0px; &:disabled { cursor: not-allowed; } } } // Authenticated claim status — already claimed .content__claimed { p { margin: 0px; } > button { margin-top: 0px !important; } } // Authenticated claim status — unclaimed .content__unclaimed { p { line-height: 24px; &:nth-of-type(1) { margin-top: 0px; } &:nth-last-of-type(1) { margin-bottom: 0px; } } > button { margin-top: 0px !important; } } // Authenticated claim status — unclaimed — other networks .content__unclaimed_others { display: flex; padding: 10px 0px 20px 0px; align-items: center; > input { width: auto; margin: 0px; transform: scale(1.3); margin-left: 5px; cursor: pointer; } > label { padding-left: 10px; display: inline-block; font-size: 14px; color: rgb(114, 114, 114); } } // Contract balance status .home__balances { text-align: center; > p { font-size: 14px; color: rgb(114, 114, 114); } } // Main blue button .button__main { width: 100%; margin-top: 20px; background-color: rgb(25, 35, 45); color: white; padding: 10px 0px; border-radius: 5px; border: none; font-size: 15px; cursor: pointer; transition: 100ms ease-in-out; &:hover { opacity: 0.9; } &:disabled { background-color: rgb(220, 230, 240); color: #19232d; cursor: not-allowed; } &:hover:disabled { opacity: 1; cursor: not-allowed; } } // Responsive @media screen and (max-width: 750px) { // Top CTA .home__cta { > h1 { font-size: 2.3rem; } > span { font-size: 17px; } } // Card .home__card { p { line-height: 24px; } } // Individual address containers .address { display: block; margin-top: 5px; padding-bottom: 10px; > a { display: block; width: calc(100% - 0.8em); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; text-align: center; } > button { display: block; padding: 0.4em; margin-left: 0px; margin-top: 5px; width: 100%; } } } ================================================ FILE: frontend/styles/Layout.module.scss ================================================ // Main container .layout { max-width: 800px; padding: 20px; margin: 0px auto; min-height: calc(100vh - 40px); display: flex; flex-direction: column; > div { width: 100%; } } // Footer .layout__footer { margin-top: auto; text-align: center; padding: 30px 0px; > p { font-size: 12px; line-height: 18px; color: rgb(93, 93, 93); } } ================================================ FILE: frontend/styles/global.scss ================================================ // Background colors $bg-color: rgb(246, 246, 247); $bg-dot-color: rgb(203, 203, 205); // Background dimensions $dot-size: 2px; $dot-space: 30px; html { // Scroll background background-color: $bg-color; } body { // Fix spacing margin: 0px; padding: 0px; // Font font-feature-settings: "ss01"; text-rendering: optimizeLegibility; font-family: "Inter", sans-serif; // Background min-height: 100vh; min-width: 100vw; background-color: rgb(246, 246, 247); background: linear-gradient( 90deg, $bg-color ($dot-space - $dot-size), transparent 1% ) center, linear-gradient($bg-color ($dot-space - $dot-size), transparent 1%) center, $bg-dot-color; background-size: $dot-space $dot-space; } button, input { // Font override font-feature-settings: "ss01"; text-rendering: optimizeLegibility; font-family: "Inter", sans-serif; } ================================================ FILE: frontend/tsconfig.json ================================================ { "compilerOptions": { "target": "es5", "lib": ["dom", "dom.iterable", "esnext"], "allowJs": true, "skipLibCheck": true, "strict": true, "forceConsistentCasingInFileNames": true, "noEmit": true, "esModuleInterop": true, "module": "esnext", "moduleResolution": "node", "resolveJsonModule": true, "isolatedModules": true, "jsx": "preserve", "baseUrl": "./", "incremental": true }, "include": ["next-env.d.ts", "**/*.ts", "**/*.tsx"], "exclude": ["node_modules"] } ================================================ FILE: frontend/utils/addresses.ts ================================================ // Export faucet addresses export const ADDRESSES = [ { network: "ropsten", depleted: true, disclaimer: "Faucet drips 1 ETH, 1 wETH, and 5 NFTs (ERC721).", etherscanPrefix: "ropsten.etherscan.io", formattedName: "Ropsten", addresses: { NFTs: "0xf5de760f2e916647fd766b4ad9e85ff943ce3a2b", wETH: "0xc778417e063141139fce010982780140aa0cd5ab", }, }, { network: "kovan", disclaimer: "Faucet drips 1 ETH, 1 wETH, 500 DAI, and 5 NFTs (ERC721).", etherscanPrefix: "kovan.etherscan.io", formattedName: "Kovan", addresses: { NFTs: "0xf5de760f2e916647fd766b4ad9e85ff943ce3a2b", wETH: "0xd0a1e359811322d97991e03f863a0c30c2cf029c", DAI: "0x4f96fe3b7a6cf9725f59d353f723c1bdb64ca6aa", }, }, { network: "rinkeby", disclaimer: "Faucet drips 0.5 ETH, 0.5 wETH, 50 DAI, and 5 NFTs (ERC721).", etherscanPrefix: "rinkeby.etherscan.io", formattedName: "Rinkeby", addresses: { NFTs: "0xf5de760f2e916647fd766b4ad9e85ff943ce3a2b", wETH: "0xc778417E063141139Fce010982780140Aa0cD5Ab", DAI: "0x6A9865aDE2B6207dAAC49f8bCba9705dEB0B0e6D", }, }, { network: "goerli", disclaimer: "Faucet drips 1 ETH, 1 wETH, and 5 NFTs (ERC721).", etherscanPrefix: "goerli.etherscan.io", formattedName: "Görli", addresses: { NFTs: "0xf5de760f2e916647fd766b4ad9e85ff943ce3a2b", wETH: "0xb4fbf271143f4fbf7b91a5ded31805e42b2208d6", }, }, { network: "kovan-optimistic", disclaimer: "Faucet drips 1 ETH, 1 wETH, 500 DAI, and 5 NFTs (ERC721).", etherscanPrefix: "kovan-optimistic.etherscan.io", formattedName: "Optimistic Kovan", connectionDetails: "https://community.optimism.io/docs/useful-tools/networks/#optimism-kovan-testnet", autoconnect: { chainId: "0x45", chainName: "Optimistic Kovan", nativeCurrency: { name: "Ethereum", symbol: "ETH", decimals: 18, }, rpcUrls: ["https://kovan.optimism.io"], blockExplorerUrls: ["https://kovan-optimistic.etherscan.io/"], }, addresses: { NFTs: "0xf5de760f2e916647fd766b4ad9e85ff943ce3a2b", wETH: "0xbc6f6b680bc61e30db47721c6d1c5cde19c1300d", DAI: "0xda10009cbd5d07dd0cecc66161fc93d7c9000da1", }, }, { network: "mumbai", disclaimer: "Faucet drips 0.1 MATIC, 0.1 wMATIC, 500 DAI, and 5 NFTs (ERC721).", etherscanPrefix: "mumbai.polygonscan.com", formattedName: "Polygon Mumbai", connectionDetails: "https://blog.pods.finance/guide-connecting-mumbai-testnet-to-your-metamask-87978071aca8", autoconnect: { chainId: "0x13881", chainName: "Polygon Mumbai", nativeCurrency: { name: "MATIC", symbol: "MATIC", decimals: 18, }, rpcUrls: ["https://rpc-mumbai.maticvigil.com/"], blockExplorerUrls: ["https://mumbai.polygonscan.com/"], }, addresses: { NFTs: "0xf5de760f2e916647fd766b4ad9e85ff943ce3a2b", wETH: "0x9c3c9283d3e44854697cd22d3faa240cfb032889", DAI: "0x001b3b4d0f3714ca98ba10f6042daebf0b1b7b6f", }, }, { network: "arb-rinkeby", disclaimer: "Faucet drips 0.5 ETH, 0.5 wETH, 50 DAI, and 5 NFTs (ERC721).", etherscanPrefix: "testnet.arbiscan.io", formattedName: "Arbitrum Rinkeby", connectionDetails: "https://developer.offchainlabs.com/docs/public_testnet", autoconnect: { chainId: "0x66eeb", chainName: "Arbitrum Testnet", nativeCurrency: { name: "Ethereum", symbol: "ETH", decimals: 18, }, rpcUrls: ["https://rinkeby.arbitrum.io/rpc"], blockExplorerUrls: ["https://testnet.arbiscan.io/"], }, addresses: { NFTs: "0xf5de760f2e916647fd766b4ad9e85ff943ce3a2b", wETH: "0xebbc3452cc911591e4f18f3b36727df45d6bd1f9", DAI: "0x2f3c1b6a51a469051a22986aa0ddf98466cc8d3c", }, }, { network: "avalanche-fuji", depleted: true, disclaimer: "Faucet drips 0.1 AVAX, 0.1 wAVAX, 500 DAI, and 5 NFTs (ERC721).", etherscanPrefix: "testnet.snowtrace.io", formattedName: "Avalanche Fuji", connectionDetails: "https://docs.avax.network/build/tutorials/smart-contracts/deploy-a-smart-contract-on-avalanche-using-remix-and-metamask#step-1-setting-up-metamask", autoconnect: { chainId: "0xa869", chainName: "Avalanche FUJI C-Chain", nativeCurrency: { name: "Avalanche", symbol: "AVAX", decimals: 18, }, rpcUrls: ["https://api.avax-test.network/ext/bc/C/rpc"], blockExplorerUrls: ["https://testnet.snowtrace.io/"], }, addresses: { NFTs: "0xf5de760f2e916647fd766b4ad9e85ff943ce3a2b", wETH: "0xd00ae08403b9bbb9124bb305c09058e32c39a48c", DAI: "0xebbc3452cc911591e4f18f3b36727df45d6bd1f9", }, }, { network: "moonbase-alpha", depleted: true, disclaimer: "Faucet drips 1 DEV, 1 wDEV, 500 DAI, and 5 NFTs (ERC721).", etherscanPrefix: "moonbase.moonscan.io", formattedName: "Moonbase Alpha", connectionDetails: "https://docs.moonbeam.network/learn/platform/networks/moonbase/", autoconnect: { chainId: "0x507", chainName: "Moonbase Alpha", nativeCurrency: { name: "Dev", symbol: "DEV", decimals: 18, }, rpcUrls: ["https://rpc.api.moonbase.moonbeam.network"], blockExplorerUrls: ["https://moonbase.moonscan.io/"], }, addresses: { NFTs: "0xf5de760f2e916647fd766B4AD9E85ff943cE3A2b", wETH: "0xD909178CC99d318e4D46e7E66a972955859670E1", DAI: "0x4C153BFaD26628BdbaFECBCD160A0790b1b8F212", }, }, ]; /** * Export details about networks */ export function getAddressDetails() { // Get active networks const activeNetworks: string[] = ADDRESSES.filter( // Filter for non-depleted ({ depleted }) => !depleted // Collect just formatted name ).map(({ formattedName }) => formattedName); // Get number of active networks const networkCount: number = activeNetworks.length; // Sort addresses (depleted last) const sortedAddresses = ADDRESSES.sort((a, b) => { const first = a.depleted ?? false; const second = b.depleted ?? false; return Number(first) - Number(second); }); // Return details return { networkCount, sortedAddresses }; } ================================================ FILE: frontend/utils/dates.ts ================================================ /** * Parse Twitter date as JS Date * https://stackoverflow.com/questions/13132964/how-to-format-twitter-facebook-feed-date-with-javascript * @param {string} dateString from Twitter * @returns {Date} parsed */ export default function parseTwitterDate(dateString: string): Date { const b: string[] = dateString.split(/[: ]/g); const m: Record = { jan: 0, feb: 1, mar: 2, apr: 3, may: 4, jun: 5, jul: 6, aug: 7, sep: 8, oct: 9, nov: 10, dec: 11, }; return new Date( Date.UTC( Number(b[7]), m[b[1].toLowerCase()], Number(b[2]), Number(b[3]), Number(b[4]), Number(b[5]) ) ); }