[contract-manager] Evm contract manager verification (#981)

* Add eos network to contract manager

* Wormhole contract inspection tooling

* Helper function to hash contract code

contract_manager/src/contracts/evm.ts

@@ -7,6 +7,19 @@ import { DataSource } from "xc_admin_common";
 // Just to make sure tx gas limit is enough
 const GAS_ESTIMATE_MULTIPLIER = 2;
 const EXTENDED_PYTH_ABI = [
+  {
+    inputs: [],
+    name: "wormhole",
+    outputs: [
+      {
+        internalType: "contract IWormhole",
+        name: "",
+        type: "address",
+      },
+    ],
+    stateMutability: "view",
+    type: "function",
+  },
   {
     inputs: [],
     name: "governanceDataSource",
@@ -126,6 +139,74 @@ const EXTENDED_PYTH_ABI = [
   ...PythInterfaceAbi,
 ] as any;
 
+const WORMHOLE_ABI = [
+  {
+    inputs: [],
+    name: "getCurrentGuardianSetIndex",
+    outputs: [
+      {
+        internalType: "uint32",
+        name: "",
+        type: "uint32",
+      },
+    ],
+    stateMutability: "view",
+    type: "function",
+  },
+  {
+    inputs: [
+      {
+        internalType: "uint32",
+        name: "index",
+        type: "uint32",
+      },
+    ],
+    name: "getGuardianSet",
+    outputs: [
+      {
+        components: [
+          {
+            internalType: "address[]",
+            name: "keys",
+            type: "address[]",
+          },
+          {
+            internalType: "uint32",
+            name: "expirationTime",
+            type: "uint32",
+          },
+        ],
+        internalType: "struct Structs.GuardianSet",
+        name: "",
+        type: "tuple",
+      },
+    ],
+    stateMutability: "view",
+    type: "function",
+  },
+] as any;
+export class WormholeEvmContract {
+  constructor(public chain: EvmChain, public address: string) {}
+  getContract() {
+    const web3 = new Web3(this.chain.getRpcUrl());
+    return new web3.eth.Contract(WORMHOLE_ABI, this.address);
+  }
+
+  /**
+   * Returns an array of guardian addresses used for VAA verification in this contract
+   */
+  async getGuardianSet(): Promise<string[]> {
+    const wormholeContract = this.getContract();
+    const currentIndex = await wormholeContract.methods
+      .getCurrentGuardianSetIndex()
+      .call();
+    const [currentSet] = await wormholeContract.methods
+      .getGuardianSet(currentIndex)
+      .call();
+    return currentSet;
+  }
+}
+
 export class EvmContract extends Contract {
   static type = "EvmContract";
 
@@ -197,10 +278,24 @@ export class EvmContract extends Contract {
    * Returns the bytecode of the contract in hex format
    */
   async getCode(): Promise<string> {
+    // TODO: handle proxy contracts
     const web3 = new Web3(this.chain.getRpcUrl());
     return web3.eth.getCode(this.address);
   }
 
+  /**
+   * Returns the keccak256 digest of the contract bytecode after replacing any occurences of the contract addr in the bytecode with 0
+   * This is used to verify that the contract code is the same on all chains
+   */
+  async getCodeDigestWithoutAddress(): Promise<string> {
+    const code = await this.getCode();
+    const strippedCode = code.replaceAll(
+      this.address.toLowerCase().replace("0x", ""),
+      "0000000000000000000000000000000000000000"
+    );
+    return Web3.utils.keccak256(strippedCode);
+  }
+
   async getLastExecutedGovernanceSequence() {
     const pythContract = await this.getContract();
     return Number(
@@ -238,6 +333,15 @@ export class EvmContract extends Contract {
     return Number(result);
   }
 
+  /**
+   * Returns the wormhole contract which is being used for VAA verification
+   */
+  async getWormholeContract(): Promise<WormholeEvmContract> {
+    const pythContract = this.getContract();
+    const address = await pythContract.methods.wormhole().call();
+    return new WormholeEvmContract(this.chain, address);
+  }
+
   async getBaseUpdateFee() {
     const pythContract = this.getContract();
     const result = await pythContract.methods.singleUpdateFeeInWei().call();

contract_manager/store/chains/EvmChain/eos.yaml

@@ -0,0 +1,6 @@
+id: eos
+wormholeChainName: eos
+mainnet: true
+rpcUrl: https://api.evm.eosnetwork.com
+networkId: 17777
+type: EvmChain

contract_manager/store/chains/EvmChain/eos_testnet.yaml

@@ -0,0 +1,6 @@
+id: eos_testnet
+wormholeChainName: eos
+mainnet: false
+rpcUrl: https://api.testnet.evm.eosnetwork.com
+networkId: 15557
+type: EvmChain

contract_manager/store/contracts/EvmContract/eos_0xA2aa501b19aff244D90cc15a4Cf739D2725B5729.yaml

@@ -0,0 +1,3 @@
+chain: eos
+address: "0xA2aa501b19aff244D90cc15a4Cf739D2725B5729"
+type: EvmContract

contract_manager/store/contracts/EvmContract/eos_testnet_0xA2aa501b19aff244D90cc15a4Cf739D2725B5729.yaml

@@ -0,0 +1,3 @@
+chain: eos_testnet
+address: "0xA2aa501b19aff244D90cc15a4Cf739D2725B5729"
+type: EvmContract