relayer: support celo and klaytn

bridge_ui/src/utils/consts.ts

@@ -1348,6 +1348,8 @@ export const RELAYER_COMPARE_ASSET: RelayerCompareAsset = {
   [CHAIN_ID_OASIS]: "oasis-network",
   [CHAIN_ID_FANTOM]: "fantom",
   [CHAIN_ID_AURORA]: "ethereum", // Aurora uses bridged ether
+  [CHAIN_ID_KLAYTN]: "klay-token",
+  [CHAIN_ID_CELO]: "celo",
 } as RelayerCompareAsset;
 export const getCoinGeckoURL = (coinGeckoId: string) =>
   `https://api.coingecko.com/api/v3/simple/price?ids=${coinGeckoId}&vs_currencies=usd`;

relayer/spy_relayer/package.json

@@ -32,7 +32,8 @@
     "typescript": "^4.3.5"
   },
   "dependencies": {
-    "@certusone/wormhole-sdk": "^0.2.3",
+    "@celo-tools/celo-ethers-wrapper": "^0.1.0",
+    "@certusone/wormhole-sdk": "^0.3.3",
     "@certusone/wormhole-spydk": "^0.0.1",
     "@solana/spl-token": "^0.1.8",
     "@solana/web3.js": "^1.24.0",

relayer/spy_relayer/src/relayer/evm.ts

@@ -1,16 +1,18 @@
 import {
   Bridge__factory,
+  CHAIN_ID_CELO,
+  CHAIN_ID_KLAYTN,
   CHAIN_ID_POLYGON,
   getIsTransferCompletedEth,
   hexToUint8Array,
   redeemOnEth,
   redeemOnEthNative,
 } from "@certusone/wormhole-sdk";
-import { Signer } from "@ethersproject/abstract-signer";
 import { ethers } from "ethers";
 import { ChainConfigInfo } from "../configureEnv";
 import { getScopedLogger, ScopedLogger } from "../helpers/logHelper";
 import { PromHelper } from "../helpers/promHelpers";
+import { CeloProvider, CeloWallet } from "@celo-tools/celo-ethers-wrapper";
 
 export function newProvider(
   url: string,
@@ -41,8 +43,16 @@ export async function relayEVM(
     relayLogger
   );
   const signedVaaArray = hexToUint8Array(signedVAA);
-  let provider = newProvider(chainConfigInfo.nodeUrl);
-  const signer: Signer = new ethers.Wallet(walletPrivateKey, provider);
+  let provider = undefined;
+  let signer = undefined;
+  if (chainConfigInfo.chainId === CHAIN_ID_CELO) {
+    provider = new CeloProvider(chainConfigInfo.nodeUrl);
+    await provider.ready;
+    signer = new CeloWallet(walletPrivateKey, provider);
+  } else {
+    provider = newProvider(chainConfigInfo.nodeUrl);
+    signer = new ethers.Wallet(walletPrivateKey, provider);
+  }
 
   logger.debug("Checking to see if vaa has already been redeemed.");
   const alreadyRedeemed = await getIsTransferCompletedEth(
@@ -69,14 +79,17 @@ export async function relayEVM(
   }
 
   logger.debug("Redeeming.");
-  // look, there's something janky with Polygon + ethers + EIP-1559
   let overrides = {};
   if (chainConfigInfo.chainId === CHAIN_ID_POLYGON) {
+    // look, there's something janky with Polygon + ethers + EIP-1559
     let feeData = await provider.getFeeData();
     overrides = {
       maxFeePerGas: feeData.maxFeePerGas?.mul(50) || undefined,
       maxPriorityFeePerGas: feeData.maxPriorityFeePerGas?.mul(50) || undefined,
     };
+  } else if (chainConfigInfo.chainId === CHAIN_ID_KLAYTN) {
+    // Klaytn requires specifying gasPrice
+    overrides = { gasPrice: (await signer.getGasPrice()).toString() };
   }
   const bridge = Bridge__factory.connect(
     chainConfigInfo.tokenBridgeAddress,

relayer/spy_relayer/src/utils/wormhole.ts

@@ -1,6 +1,7 @@
 import { ChainId } from "@certusone/wormhole-sdk";
 
 export const chainIDStrings: { [key in ChainId]: string } = {
+  0: "Unset",
   1: "Solana",
   2: "Ethereum",
   3: "Terra",
@@ -13,5 +14,9 @@ export const chainIDStrings: { [key in ChainId]: string } = {
   10: "Fantom",
   11: "Karura",
   12: "Acala",
+  13: "Klaytn",
+  14: "Celo",
+  15: "NEAR",
+  16: "Moonbeam",
   10001: "Ropsten",
 };