feat: detect contract addresses that are Gnosis Safe (#111)

lukso-network · Jun 14, 2024 · e1a3e0a · e1a3e0a
1 parent b45a447
commit e1a3e0a
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Showing 4 changed files with 55 additions and 5 deletions.
diff --git a/components/AddressInfos/AddressInfos.tsx b/components/AddressInfos/AddressInfos.tsx
@@ -13,7 +13,7 @@ import {
   LSP1_GRAVE_FORWARDER,
   UP_RECOVERY_ADDRESSES,
 } from '../../globals';
-import { checkInterface, getData } from '../../utils/web3';
+import { checkInterface, getData, checkIsGnosisSafe } from '../../utils/web3';
 
 import LSP7Artifact from '@lukso/lsp-smart-contracts/artifacts/LSP7DigitalAsset.json';
 import { AbiItem } from 'web3-utils';
@@ -125,6 +125,7 @@ const AddressInfos: React.FC<Props> = ({ assetAddress, userAddress = '' }) => {
   const [assetName, setAssetName] = useState('');
   const [assetSymbol, setAssetSymbol] = useState('');
   const [isLSP1GraveForwarder, setIsLSP1GraveForwarder] = useState(false);
+  const [isGnosisSafe, setIsGnosisSafe] = useState(false);
 
   const checkAddressInterface = async (_address: string) => {
     if (!web3 || !_address) {
@@ -145,6 +146,9 @@ const AddressInfos: React.FC<Props> = ({ assetAddress, userAddress = '' }) => {
     setIsLSP7(isLsp7DigitalAsset);
     setIsLSP8(isLsp8IdentifiableDigitalAsset);
 
+    const isGnosisSafeContract = await checkIsGnosisSafe(_address, web3);
+    setIsGnosisSafe(isGnosisSafeContract);
+
     const nameBytesValue = await getData(
       assetAddress,
       ERC725YDataKeys.LSP4.LSP4TokenName,
@@ -184,7 +188,7 @@ const AddressInfos: React.FC<Props> = ({ assetAddress, userAddress = '' }) => {
 
   const explorerLink = `${
     EXPLORER_BASE_URL[network.name]
-  }/assetAddress/${assetAddress}`;
+  }/address/${assetAddress}`;
 
   const renderTags = () => {
     if (isLoading) {
@@ -215,7 +219,14 @@ const AddressInfos: React.FC<Props> = ({ assetAddress, userAddress = '' }) => {
             text="👻 - LSP1 Grave Forwarder"
             colorClass="is-danger"
             isLight={true}
-            contractVersion="0.14.0"
+          />
+        )}
+
+        {isGnosisSafe && (
+          <AddressTypeBadge
+            text="🥝 - Gnosis Safe"
+            colorClass="is-success"
+            isLight={true}
           />
         )}
 

diff --git a/globals.ts b/globals.ts
@@ -43,6 +43,13 @@ export const LSP1_DELEGATE_VERSIONS = {
   '0x7870C5B8BC9572A8001C3f96f7ff59961B23500D': '0.14.0',
 };
 
-// Mainnet
+// Mainnet only
 export const LSP1_GRAVE_FORWARDER =
   '0x42562196ee7AaC3E8501db777B25ffc976ed8463';
+
+// Mainnet AND Testnet
+export const GNOSIS_SAFE_IMPLEMENTATION =
+  '0x3E5c63644E683549055b9Be8653de26E0B4CD36E';
+
+export const GNOSIS_SAFE_PROXY_DEPLOYED_BYTECODE =
+  '0x608060405273ffffffffffffffffffffffffffffffffffffffff600054167fa619486e0000000000000000000000000000000000000000000000000000000060003514156050578060005260206000f35b3660008037600080366000845af43d6000803e60008114156070573d6000fd5b3d6000f3fea2646970667358221220d1429297349653a4918076d650332de1a1068c5f3e07c5c82360c277770b955264736f6c63430007060033';
diff --git a/pages/inspector.tsx b/pages/inspector.tsx
@@ -390,7 +390,10 @@ const Home: NextPage = () => {
                           </li>
                           <li>
                             <strong>Contract type:</strong>{' '}
-                            <code>ERC725-compatible</code>
+                            <code>
+                              {isLSP0ERC725Account && '🆙 Universal Profile'}{' '}
+                              (ERC725-compatible)
+                            </code>
                           </li>
                         </ul>
                         <AddressButtons

diff --git a/utils/web3.ts b/utils/web3.ts
@@ -21,6 +21,10 @@ import {
   aggregateABI,
 } from '../constants';
 import { AbiItem } from 'web3-utils';
+import {
+  GNOSIS_SAFE_IMPLEMENTATION,
+  GNOSIS_SAFE_PROXY_DEPLOYED_BYTECODE,
+} from '../globals';
 
 export const getDataBatch = async (
   address: string,
@@ -176,3 +180,28 @@ export const getVersion = async (
     return 'unknown';
   }
 };
+
+export async function checkIsGnosisSafe(
+  address: string,
+  web3: Web3,
+): Promise<boolean> {
+  const codeAt = await web3.eth.getCode(address);
+
+  if (codeAt != GNOSIS_SAFE_PROXY_DEPLOYED_BYTECODE) {
+    return false;
+  }
+
+  // in the Solidity code of the Gnosis Safe proxy, the address of the singleton (= implementation)
+  // is always the first declared variable. This variable is set to `internal` and does not have a getter
+  // to reduce deployment costs.
+  //
+  // example: https://explorer.execution.mainnet.lukso.network/address/0x14C2041eD166e00A8Ed2adad8c9C7389b3Dd87fb?tab=contract
+  const valueAtStorageSlot0 = await web3.eth.getStorageAt(address, 0);
+
+  const { implementationAddress } = web3.eth.abi.decodeParameter(
+    'address',
+    valueAtStorageSlot0,
+  );
+
+  return implementationAddress == GNOSIS_SAFE_IMPLEMENTATION;
+}