@fgiova/aws-signature/dist/sign_worker.js

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"use strict";
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    Object.defineProperty(o, "default", { enumerable: true, value: v });
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var __importStar = (this && this.__importStar) || (function () {
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        __setModuleDefault(result, mod);
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    };
})();
Object.defineProperty(exports, "__esModule", { value: true });
exports.generateKey = generateKey;
exports.signRequest = signRequest;
const crypto = __importStar(require("node:crypto"));
const env_schema_1 = require("env-schema");
const typebox_1 = require("@sinclair/typebox");
const constants_1 = require("./aws/constants");
const utils_1 = require("./aws/utils");
const createCanonicalRequest_1 = require("./aws/createCanonicalRequest");
const getCanonicalHeaders_1 = require("./aws/getCanonicalHeaders");
const getPayloadHash_1 = require("./aws/getPayloadHash");
const ConfigSchema = typebox_1.Type.Object({
    AWS_ACCESS_KEY_ID: typebox_1.Type.String(),
    AWS_SECRET_ACCESS_KEY: typebox_1.Type.String(),
    AWS_REGION: typebox_1.Type.String({ default: "" }),
});
const config = (0, env_schema_1.envSchema)({
    schema: ConfigSchema
});
function generateKey({ secret = config.AWS_SECRET_ACCESS_KEY, region = config.AWS_REGION, service, date = new Date() }) {
    const { shortDate } = (0, utils_1.formatDate)(date);
    let key = `AWS4${secret}`;
    for (const signable of [shortDate, region, service, constants_1.KEY_TYPE_IDENTIFIER]) {
        key = crypto
            .createHmac("sha256", key)
            .update(signable)
            .digest();
    }
    return key;
}
function getSignatureSubject(longDate, scope, canonicalRequest) {
    return `${constants_1.ALGORITHM_IDENTIFIER}
${longDate}
${scope}
${crypto.createHash("sha256").update((0, utils_1.toUint8Array)(canonicalRequest)).digest("hex")}`;
}
function authSignature(key, longDate, scope, canonicalRequest) {
    const subject = getSignatureSubject(longDate, scope, canonicalRequest);
    return crypto
        .createHmac("sha256", key)
        .update(subject)
        .digest("hex");
}
function createScope(shortDate, service, region) {
    return `${shortDate}/${region}/${service}/${constants_1.KEY_TYPE_IDENTIFIER}`;
}
function signRequest({ request, service, region = config.AWS_REGION, key, date = new Date() }) {
    const { shortDate, longDate } = (0, utils_1.formatDate)(date);
    /* c8 ignore next 3 */
    if (!request.headers) {
        request.headers = {};
    }
    request.headers[constants_1.AMZ_DATE_HEADER] = longDate;
    request.headers[constants_1.SHA256_HEADER] = (0, getPayloadHash_1.getPayloadHash)(request);
    const scope = createScope(shortDate, service, region);
    const canonicalHeaders = (0, getCanonicalHeaders_1.getCanonicalHeaders)(request);
    const canonicalRequest = (0, createCanonicalRequest_1.createCanonicalRequest)(request, canonicalHeaders, service.toLowerCase() === "s3");
    const signature = authSignature(key, longDate, scope, canonicalRequest);
    // eslint-disable-next-line @typescript-eslint/dot-notation
    request.headers["Authorization"] = `${constants_1.ALGORITHM_IDENTIFIER} Credential=${config.AWS_ACCESS_KEY_ID}/${scope}, SignedHeaders=${(0, getCanonicalHeaders_1.getCanonicalHeaderList)(canonicalHeaders)}, Signature=${signature}`;
    return request;
}