forked from cerc-io/laconic-wallet
7219162185
* Sign message using signDirect method with cosmos accounts * Add explaination for signDirect method * Use existing utility function to convert hex string to uint8array * Handle review changes
80 lines
2.7 KiB
TypeScript
80 lines
2.7 KiB
TypeScript
// Taken from https://medium.com/walletconnect/how-to-build-a-wallet-in-react-native-with-the-web3wallet-sdk-b6f57bf02f9a
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import { formatJsonRpcError, formatJsonRpcResult } from '@json-rpc-tools/utils';
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import { SignClientTypes } from '@walletconnect/types';
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import { getSdkError } from '@walletconnect/utils';
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import { EIP155_SIGNING_METHODS } from './EIP155Lib';
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import { signDirectMessage, signEthMessage } from '../sign-message';
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import { Account } from '../../types';
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import { getCosmosAccounts, getMnemonic, getPathKey } from '../utils';
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export async function approveWalletConnectRequest(
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requestEvent: SignClientTypes.EventArguments['session_request'],
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account: Account,
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network: string,
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message: string,
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) {
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const { params, id } = requestEvent;
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const { request } = params;
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const path = (await getPathKey(network, account.counterId)).path;
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const mnemonic = await getMnemonic();
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const cosmosAccount = await getCosmosAccounts(mnemonic, path);
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const address = cosmosAccount.data.address;
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switch (request.method) {
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case EIP155_SIGNING_METHODS.PERSONAL_SIGN:
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const ethSignature = await signEthMessage(message, account.counterId);
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return formatJsonRpcResult(id, ethSignature);
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case 'cosmos_signDirect':
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// Reference: https://github.com/confio/cosmjs-types/blob/66e52711914fccd2a9d1a03e392d3628fdf499e2/src/cosmos/tx/v1beta1/tx.ts#L51
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// According above doc, in the signDoc interface 'bodyBytes' and 'authInfoBytes' have Uint8Array type
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const bodyBytesArray = Uint8Array.from(
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Buffer.from(request.params.signDoc.bodyBytes, 'hex'),
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);
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const authInfoBytesArray = Uint8Array.from(
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Buffer.from(request.params.signDoc.authInfoBytes, 'hex'),
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);
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const cosmosDirectSignature = await signDirectMessage(
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network,
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account.counterId,
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{
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...request.params.signDoc,
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bodyBytes: bodyBytesArray,
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authInfoBytes: authInfoBytesArray,
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},
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);
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return formatJsonRpcResult(id, {
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signature: cosmosDirectSignature,
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});
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case 'cosmos_signAmino':
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const cosmosAminoSignature = await cosmosAccount.cosmosWallet.signAmino(
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address,
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request.params.signDoc,
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);
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if (!cosmosAminoSignature) {
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throw new Error('Error signing message');
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}
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return formatJsonRpcResult(id, {
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signature: cosmosAminoSignature.signature.signature,
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});
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default:
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throw new Error(getSdkError('INVALID_METHOD').message);
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}
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}
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export function rejectEIP155Request(
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request: SignClientTypes.EventArguments['session_request'],
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) {
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const { id } = request;
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return formatJsonRpcError(id, getSdkError('USER_REJECTED_METHODS').message);
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}
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