@zkp2p/reclaim-witness-sdk
Version:
<div> <div> <img src="https://raw.githubusercontent.com/reclaimprotocol/.github/main/assets/banners/Attestor-Core.png" /> </div> </div>
59 lines • 4.07 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.signAsAttestor = signAsAttestor;
exports.getAttestorAddress = getAttestorAddress;
exports.niceParseJsonObject = niceParseJsonObject;
exports.getInitialMessagesFromQuery = getInitialMessagesFromQuery;
const tls_1 = require("@reclaimprotocol/tls");
const api_1 = require("../../proto/api");
const utils_1 = require("../../utils");
const env_1 = require("../../utils/env");
const signatures_1 = require("../../utils/signatures");
const PRIVATE_KEY = (0, env_1.getEnvVariable)('PRIVATE_KEY');
/**
* Sign message using the PRIVATE_KEY env var.
*/
function signAsAttestor(data, scheme) {
const { sign } = signatures_1.SIGNATURES[scheme];
return sign(typeof data === 'string' ? (0, tls_1.strToUint8Array)(data) : data, PRIVATE_KEY);
}
/**
* Obtain the address on chain, from the PRIVATE_KEY env var.
*/
function getAttestorAddress(scheme) {
const { getAddress, getPublicKey } = signatures_1.SIGNATURES[scheme];
const publicKey = getPublicKey(PRIVATE_KEY);
return getAddress(publicKey);
}
/**
* Nice parse JSON with a key.
* If the data is empty, returns an empty object.
* And if the JSON is invalid, throws a bad request error,
* with the key in the error message.
*/
function niceParseJsonObject(data, key) {
if (!data) {
return {};
}
try {
return JSON.parse(data);
}
catch (e) {
throw utils_1.AttestorError.badRequest(`Invalid JSON in ${key}: ${e.message}`);
}
}
/**
* Extract any initial messages sent via the query string,
* in the `messages` parameter.
*/
function getInitialMessagesFromQuery(req) {
const url = new URL(req.url, 'http://localhost');
const messagesB64 = url.searchParams.get('messages');
if (!(messagesB64 === null || messagesB64 === void 0 ? void 0 : messagesB64.length)) {
return [];
}
const msgsBytes = Buffer.from(messagesB64, 'base64');
const msgs = api_1.RPCMessages.decode(msgsBytes);
return msgs.messages;
}
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