wallet-connect-web-examples/wallets/react-wallet-v2/src/utils/EIP155RequestHandlerUtil.ts

56 lines
2.3 KiB
TypeScript

import { EIP155_CHAINS, EIP155_SIGNING_METHODS, TEIP155Chain } from '@/data/EIP155Data'
import { eip155Addresses, eip155Wallets } from '@/utils/EIP155WalletUtil'
import {
getSignParamsMessage,
getSignTypedDataParamsData,
getWalletAddressFromParams
} from '@/utils/HelperUtil'
import { formatJsonRpcError, formatJsonRpcResult } from '@json-rpc-tools/utils'
import { RequestEvent } from '@walletconnect/types'
import { ERROR } from '@walletconnect/utils'
import { providers } from 'ethers'
export async function approveEIP155Request(requestEvent: RequestEvent) {
const { method, params, id } = requestEvent.request
const { chainId } = requestEvent
const wallet = eip155Wallets[getWalletAddressFromParams(eip155Addresses, params)]
switch (method) {
case EIP155_SIGNING_METHODS.PERSONAL_SIGN:
case EIP155_SIGNING_METHODS.ETH_SIGN:
const message = getSignParamsMessage(params)
const signedMessage = await wallet.signMessage(message)
return formatJsonRpcResult(id, signedMessage)
case EIP155_SIGNING_METHODS.ETH_SIGN_TYPED_DATA:
case EIP155_SIGNING_METHODS.ETH_SIGN_TYPED_DATA_V3:
case EIP155_SIGNING_METHODS.ETH_SIGN_TYPED_DATA_V4:
const { domain, types, message: data } = getSignTypedDataParamsData(params)
// https://github.com/ethers-io/ethers.js/issues/687#issuecomment-714069471
delete types.EIP712Domain
const signedData = await wallet._signTypedData(domain, types, data)
return formatJsonRpcResult(id, signedData)
case EIP155_SIGNING_METHODS.ETH_SEND_TRANSACTION:
const provider = new providers.JsonRpcProvider(EIP155_CHAINS[chainId as TEIP155Chain].rpc)
const sendTransaction = params[0]
const connectedWallet = wallet.connect(provider)
const { hash } = await connectedWallet.sendTransaction(sendTransaction)
return formatJsonRpcResult(id, hash)
case EIP155_SIGNING_METHODS.ETH_SIGN_TRANSACTION:
const signTransaction = params[0]
const signature = await wallet.signTransaction(signTransaction)
return formatJsonRpcResult(id, signature)
default:
throw new Error(ERROR.UNKNOWN_JSONRPC_METHOD.format().message)
}
}
export function rejectEIP155Request(request: RequestEvent['request']) {
const { id } = request
return formatJsonRpcError(id, ERROR.JSONRPC_REQUEST_METHOD_REJECTED.format().message)
}