src/jdk.incubator.httpclient/share/classes/jdk/incubator/http/internal/RedirectFilter.java
--- a/src/jdk.incubator.httpclient/share/classes/jdk/incubator/http/internal/RedirectFilter.java Tue Feb 06 19:37:56 2018 +0000
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,119 +0,0 @@
-/*
- * Copyright (c) 2015, 2018, Oracle and/or its affiliates. All rights reserved.
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 only, as
- * published by the Free Software Foundation. Oracle designates this
- * particular file as subject to the "Classpath" exception as provided
- * by Oracle in the LICENSE file that accompanied this code.
- *
- * This code is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
- * version 2 for more details (a copy is included in the LICENSE file that
- * accompanied this code).
- *
- * You should have received a copy of the GNU General Public License version
- * 2 along with this work; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
- *
- * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
- * or visit www.oracle.com if you need additional information or have any
- * questions.
- */
-
-package jdk.incubator.http.internal;
-
-import java.io.IOException;
-import java.io.UncheckedIOException;
-import java.net.URI;
-import jdk.incubator.http.HttpClient;
-import jdk.incubator.http.HttpHeaders;
-import jdk.incubator.http.internal.common.Utils;
-
-class RedirectFilter implements HeaderFilter {
-
- HttpRequestImpl request;
- HttpClientImpl client;
- HttpClient.Redirect policy;
- String method;
- MultiExchange<?> exchange;
- static final int DEFAULT_MAX_REDIRECTS = 5;
- URI uri;
-
- static final int max_redirects = Utils.getIntegerNetProperty(
- "jdk.httpclient.redirects.retrylimit", DEFAULT_MAX_REDIRECTS
- );
-
- // A public no-arg constructor is required by FilterFactory
- public RedirectFilter() {}
-
- @Override
- public synchronized void request(HttpRequestImpl r, MultiExchange<?> e) throws IOException {
- this.request = r;
- this.client = e.client();
- this.policy = client.followRedirects();
-
- this.method = r.method();
- this.uri = r.uri();
- this.exchange = e;
- }
-
- @Override
- public synchronized HttpRequestImpl response(Response r) throws IOException {
- return handleResponse(r);
- }
-
- /**
- * checks to see if new request needed and returns it.
- * Null means response is ok to return to user.
- */
- private HttpRequestImpl handleResponse(Response r) {
- int rcode = r.statusCode();
- if (rcode == 200 || policy == HttpClient.Redirect.NEVER) {
- return null;
- }
- if (rcode >= 300 && rcode <= 399) {
- URI redir = getRedirectedURI(r.headers());
- if (canRedirect(redir) && ++exchange.numberOfRedirects < max_redirects) {
- //System.out.println("Redirecting to: " + redir);
- return new HttpRequestImpl(redir, method, request);
- } else {
- //System.out.println("Redirect: giving up");
- return null;
- }
- }
- return null;
- }
-
- private URI getRedirectedURI(HttpHeaders headers) {
- URI redirectedURI;
- redirectedURI = headers.firstValue("Location")
- .map(URI::create)
- .orElseThrow(() -> new UncheckedIOException(
- new IOException("Invalid redirection")));
-
- // redirect could be relative to original URL, but if not
- // then redirect is used.
- redirectedURI = uri.resolve(redirectedURI);
- return redirectedURI;
- }
-
- private boolean canRedirect(URI redir) {
- String newScheme = redir.getScheme();
- String oldScheme = uri.getScheme();
- switch (policy) {
- case ALWAYS:
- return true;
- case NEVER:
- return false;
- case SECURE:
- return newScheme.equalsIgnoreCase("https");
- case SAME_PROTOCOL:
- return newScheme.equalsIgnoreCase(oldScheme);
- default:
- throw new InternalError();
- }
- }
-}