@graphql-hive/external-composition/cjs/index.js

Compose schemas outside GraphQL Hive

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.signatureHeaderName = void 0;
exports.verifyRequest = verifyRequest;
exports.compose = compose;
const tslib_1 = require("tslib");
const node_crypto_1 = tslib_1.__importDefault(require("node:crypto"));
exports.signatureHeaderName = 'x-hive-signature-256';
const sigHashAlg = 'sha256';
function hash(secret, algo, data) {
    return node_crypto_1.default.createHmac(algo, secret).update(data, 'utf-8').digest('hex');
}
function verifyRequest(input) {
    const { body, signature, secret } = input;
    if (!body) {
        return 'ERR_EMPTY_BODY';
    }
    const sig = Buffer.from(signature !== null && signature !== void 0 ? signature : '', 'utf8');
    const digest = Buffer.from(hash(secret, sigHashAlg, body), 'utf8');
    if (sig.length !== digest.length || !node_crypto_1.default.timingSafeEqual(digest, sig)) {
        return 'ERR_INVALID_SIGNATURE';
    }
}
function compose(composition) {
    return (input) => composition(input);
}