@azure/ms-rest-js
Version:
Isomorphic client Runtime for Typescript/node.js/browser javascript client libraries generated using AutoRest
72 lines • 3.19 kB
JavaScript
// Copyright (c) Microsoft Corporation. All rights reserved.
// Licensed under the MIT License. See License.txt in the project root for license information.
import { __extends } from "tslib";
import { URLBuilder } from "../url";
import { BaseRequestPolicy, } from "./requestPolicy";
export var DefaultRedirectOptions = {
handleRedirects: true,
maxRetries: 20,
};
export function redirectPolicy(maximumRetries) {
if (maximumRetries === void 0) { maximumRetries = 20; }
return {
create: function (nextPolicy, options) {
return new RedirectPolicy(nextPolicy, options, maximumRetries);
},
};
}
var RedirectPolicy = /** @class */ (function (_super) {
__extends(RedirectPolicy, _super);
function RedirectPolicy(nextPolicy, options, maxRetries) {
if (maxRetries === void 0) { maxRetries = 20; }
var _this = _super.call(this, nextPolicy, options) || this;
_this.maxRetries = maxRetries;
return _this;
}
RedirectPolicy.prototype.sendRequest = function (request) {
var _this = this;
return this._nextPolicy
.sendRequest(request)
.then(function (response) { return handleRedirect(_this, response, 0); });
};
return RedirectPolicy;
}(BaseRequestPolicy));
export { RedirectPolicy };
function handleRedirect(policy, response, currentRetries) {
var request = response.request, status = response.status;
var locationHeader = response.headers.get("location");
if (locationHeader &&
(status === 300 ||
(status === 301 && ["GET", "HEAD"].includes(request.method)) ||
(status === 302 && ["GET", "POST", "HEAD"].includes(request.method)) ||
(status === 303 && "POST" === request.method) ||
status === 307) &&
((request.redirectLimit !== undefined && currentRetries < request.redirectLimit) ||
(request.redirectLimit === undefined && currentRetries < policy.maxRetries))) {
var builder = URLBuilder.parse(request.url);
builder.setPath(locationHeader);
request.url = builder.toString();
// POST request with Status code 302 and 303 should be converted into a
// redirected GET request if the redirect url is present in the location header
// reference: https://tools.ietf.org/html/rfc7231#page-57 && https://fetch.spec.whatwg.org/#http-redirect-fetch
if ((status === 302 || status === 303) && request.method === "POST") {
request.method = "GET";
delete request.body;
}
return policy._nextPolicy
.sendRequest(request)
.then(function (res) { return handleRedirect(policy, res, currentRetries + 1); })
.then(function (res) { return recordRedirect(res, request.url); });
}
return Promise.resolve(response);
}
function recordRedirect(response, redirect) {
// This is called as the recursive calls to handleRedirect() unwind,
// only record the deepest/last redirect
if (!response.redirected) {
response.redirected = true;
response.url = redirect;
}
return response;
}
//# sourceMappingURL=redirectPolicy.js.map