Don't change relative location header on manual redirect (#1105)
* Don't change relative location header on manual redirect * c8 ignores for node-version-specific code and fix c8 ignore in Headers constructor
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README.md
17
README.md
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@ -576,6 +576,23 @@ console.dir(result);
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Passed through to the `insecureHTTPParser` option on http(s).request. See [`http.request`](https://nodejs.org/api/http.html#http_http_request_url_options_callback) for more information.
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#### Manual Redirect
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The `redirect: 'manual'` option for node-fetch is different from the browser & specification, which
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results in an [opaque-redirect filtered response](https://fetch.spec.whatwg.org/#concept-filtered-response-opaque-redirect).
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node-fetch gives you the typical [basic filtered response](https://fetch.spec.whatwg.org/#concept-filtered-response-basic) instead.
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```js
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const fetch = require('node-fetch');
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const response = await fetch('https://httpbin.org/status/301', { redirect: 'manual' });
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if (response.status === 301 || response.status === 302) {
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const locationURL = new URL(response.headers.get('location'), response.url);
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const response2 = await fetch(locationURL, { redirect: 'manual' });
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console.dir(response2);
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}
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```
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<a id="class-request"></a>
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@ -7,6 +7,7 @@
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import {types} from 'node:util';
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import http from 'node:http';
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/* c8 ignore next 9 */
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const validateHeaderName = typeof http.validateHeaderName === 'function' ?
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http.validateHeaderName :
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name => {
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@ -17,6 +18,7 @@ const validateHeaderName = typeof http.validateHeaderName === 'function' ?
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}
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};
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/* c8 ignore next 9 */
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const validateHeaderValue = typeof http.validateHeaderValue === 'function' ?
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http.validateHeaderValue :
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(name, value) => {
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@ -141,8 +143,8 @@ export default class Headers extends URLSearchParams {
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return Reflect.get(target, p, receiver);
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}
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}
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/* c8 ignore next */
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});
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/* c8 ignore next */
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}
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get [Symbol.toStringTag]() {
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@ -154,11 +154,7 @@ export default async function fetch(url, options_) {
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finalize();
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return;
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case 'manual':
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// Node-fetch-specific step: make manual redirect a bit easier to use by setting the Location header value to the resolved URL.
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if (locationURL !== null) {
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headers.set('Location', locationURL);
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}
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// Nothing to do
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break;
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case 'follow': {
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// HTTP-redirect fetch step 2
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@ -241,6 +237,7 @@ export default async function fetch(url, options_) {
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let body = pump(response_, new PassThrough(), reject);
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// see https://github.com/nodejs/node/pull/29376
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/* c8 ignore next 3 */
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if (process.version < 'v12.10') {
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response_.on('aborted', abortAndFinalize);
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}
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22
test/main.js
22
test/main.js
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@ -446,7 +446,10 @@ describe('node-fetch', () => {
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return fetch(url, options).then(res => {
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expect(res.url).to.equal(url);
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expect(res.status).to.equal(301);
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expect(res.headers.get('location')).to.equal(`${base}inspect`);
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expect(res.headers.get('location')).to.equal('/inspect');
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const locationURL = new URL(res.headers.get('location'), url);
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expect(locationURL.href).to.equal(`${base}inspect`);
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});
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});
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@ -458,7 +461,22 @@ describe('node-fetch', () => {
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return fetch(url, options).then(res => {
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expect(res.url).to.equal(url);
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expect(res.status).to.equal(301);
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expect(res.headers.get('location')).to.equal(`${base}redirect/%C3%A2%C2%98%C2%83`);
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expect(res.headers.get('location')).to.equal('<>');
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const locationURL = new URL(res.headers.get('location'), url);
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expect(locationURL.href).to.equal(`${base}redirect/%3C%3E`);
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});
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});
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it('should support redirect mode to other host, manual flag', () => {
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const url = `${base}redirect/301/otherhost`;
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const options = {
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redirect: 'manual'
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};
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return fetch(url, options).then(res => {
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expect(res.url).to.equal(url);
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expect(res.status).to.equal(301);
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expect(res.headers.get('location')).to.equal('https://github.com/node-fetch');
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});
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});
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@ -251,6 +251,12 @@ export default class TestServer {
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res.end();
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}
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if (p === '/redirect/301/otherhost') {
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res.statusCode = 301;
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res.setHeader('Location', 'https://github.com/node-fetch');
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res.end();
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}
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if (p === '/redirect/302') {
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res.statusCode = 302;
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res.setHeader('Location', '/inspect');
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@ -309,7 +315,7 @@ export default class TestServer {
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}
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if (p === '/redirect/bad-location') {
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res.socket.write('HTTP/1.1 301\r\nLocation: ☃\r\nContent-Length: 0\r\n');
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res.socket.write('HTTP/1.1 301\r\nLocation: <>\r\nContent-Length: 0\r\n');
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res.socket.end('\r\n');
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}
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