@zkp2p/reclaim-witness-sdk
Version:
<div> <div> <img src="https://raw.githubusercontent.com/reclaimprotocol/.github/main/assets/banners/Attestor-Core.png" /> </div> </div>
78 lines • 8.16 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.claimTunnel = void 0;
const config_1 = require("../../config");
const api_1 = require("../../proto/api");
const apm_1 = require("../../server/utils/apm");
const assert_valid_claim_request_1 = require("../../server/utils/assert-valid-claim-request");
const generics_1 = require("../../server/utils/generics");
const utils_1 = require("../../utils");
const claimTunnel = async (claimRequest, { tx, logger, client }) => {
var _a, _b, _c, _d;
const { request, data: { timestampS } = {}, } = claimRequest;
const tunnel = client.getTunnel(request === null || request === void 0 ? void 0 : request.id);
try {
await tunnel.close();
}
catch (err) {
logger.debug({ err }, 'error closing tunnel');
}
if (tx) {
const transcriptBytes = tunnel.transcript.reduce((acc, { message }) => acc + message.length, 0);
tx === null || tx === void 0 ? void 0 : tx.setLabel('transcriptBytes', transcriptBytes.toString());
}
// we throw an error for cases where the attestor cannot prove
// the user's request is faulty. For eg. if the user sends a
// "createRequest" that does not match the tunnel's actual
// create request -- the attestor cannot prove that the user
// is lying. In such cases, we throw a bad request error.
// Same goes for matching the transcript.
if (((_a = tunnel.createRequest) === null || _a === void 0 ? void 0 : _a.host) !== (request === null || request === void 0 ? void 0 : request.host)
|| ((_b = tunnel.createRequest) === null || _b === void 0 ? void 0 : _b.port) !== (request === null || request === void 0 ? void 0 : request.port)
|| ((_c = tunnel.createRequest) === null || _c === void 0 ? void 0 : _c.geoLocation) !== (request === null || request === void 0 ? void 0 : request.geoLocation)) {
throw utils_1.AttestorError.badRequest('Tunnel request does not match');
}
(0, assert_valid_claim_request_1.assertTranscriptsMatch)(claimRequest.transcript, tunnel.transcript);
const res = api_1.ClaimTunnelResponse.create({ request: claimRequest });
try {
const now = (0, utils_1.unixTimestampSeconds)();
if (Math.floor(timestampS - now) > config_1.MAX_CLAIM_TIMESTAMP_DIFF_S) {
throw new utils_1.AttestorError('ERROR_INVALID_CLAIM', `Timestamp provided ${timestampS} is too far off. Current time is ${now}`);
}
const assertTx = (_d = (0, apm_1.getApm)()) === null || _d === void 0 ? void 0 : _d.startTransaction('assertValidClaimRequest', { childOf: tx });
try {
const claim = await (0, assert_valid_claim_request_1.assertValidClaimRequest)(claimRequest, client.metadata, logger);
res.claim = {
...claim,
identifier: (0, utils_1.getIdentifierFromClaimInfo)(claim),
// hardcode for compatibility with V1 claims
epoch: 1
};
}
catch (err) {
assertTx === null || assertTx === void 0 ? void 0 : assertTx.setOutcome('failure');
throw err;
}
finally {
assertTx === null || assertTx === void 0 ? void 0 : assertTx.end();
}
}
catch (err) {
logger.error({ err }, 'invalid claim request');
const attestorErr = utils_1.AttestorError.fromError(err);
attestorErr.code = 'ERROR_INVALID_CLAIM';
res.error = attestorErr.toProto();
}
res.signatures = {
attestorAddress: (0, generics_1.getAttestorAddress)(client.metadata.signatureType),
claimSignature: res.claim
? await (0, generics_1.signAsAttestor)((0, utils_1.createSignDataForClaim)(res.claim), client.metadata.signatureType)
: new Uint8Array(),
resultSignature: await (0, generics_1.signAsAttestor)(api_1.ClaimTunnelResponse.encode(res).finish(), client.metadata.signatureType)
};
// remove tunnel from client -- to free up our mem
client.removeTunnel(request.id);
return res;
};
exports.claimTunnel = claimTunnel;
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