@aws-amplify/core
Version:
Core category of aws-amplify
44 lines (43 loc) • 2.27 kB
JavaScript
// Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
// SPDX-License-Identifier: Apache-2.0
var __assign = (this && this.__assign) || function () {
__assign = Object.assign || function(t) {
for (var s, i = 1, n = arguments.length; i < n; i++) {
s = arguments[i];
for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p))
t[p] = s[p];
}
return t;
};
return __assign.apply(this, arguments);
};
import { getSignedHeaders } from './utils/getSignedHeaders';
import { getSigningValues } from './utils/getSigningValues';
import { AMZ_DATE_HEADER, AUTH_HEADER, HOST_HEADER, SHA256_ALGORITHM_IDENTIFIER, TOKEN_HEADER, } from './constants';
import { getSignature } from './utils/getSignature';
/**
* Given a `HttpRequest`, returns a Signature Version 4 signed `HttpRequest`.
*
* @param request `HttpRequest` to be signed.
* @param signRequestOptions `SignRequestOptions` object containing values used to construct the signature.
* @returns A `HttpRequest` with authentication headers which can grant temporary access to AWS resources.
*/
export var signRequest = function (request, options) {
var signingValues = getSigningValues(options);
var accessKeyId = signingValues.accessKeyId, credentialScope = signingValues.credentialScope, longDate = signingValues.longDate, sessionToken = signingValues.sessionToken;
// create the request to sign
var headers = __assign({}, request.headers);
headers[HOST_HEADER] = request.url.host;
headers[AMZ_DATE_HEADER] = longDate;
if (sessionToken) {
headers[TOKEN_HEADER] = sessionToken;
}
var requestToSign = __assign(__assign({}, request), { headers: headers });
// calculate and add the signature to the request
var signature = getSignature(requestToSign, signingValues);
var credentialEntry = "Credential=".concat(accessKeyId, "/").concat(credentialScope);
var signedHeadersEntry = "SignedHeaders=".concat(getSignedHeaders(headers));
var signatureEntry = "Signature=".concat(signature);
headers[AUTH_HEADER] = "".concat(SHA256_ALGORITHM_IDENTIFIER, " ").concat(credentialEntry, ", ").concat(signedHeadersEntry, ", ").concat(signatureEntry);
return requestToSign;
};