74 lines
2.6 KiB
Java
74 lines
2.6 KiB
Java
// Copyright (C) 2009 The Android Open Source Project
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package com.google.gerrit.httpd.raw;
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import com.google.gerrit.httpd.HtmlDomUtil;
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import com.google.gwtexpui.server.CacheHeaders;
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import com.google.gwtjsonrpc.server.RPCServletUtils;
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import com.google.inject.Inject;
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import com.google.inject.Singleton;
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import java.io.FileNotFoundException;
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import java.io.IOException;
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import java.io.OutputStream;
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import javax.servlet.http.HttpServlet;
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import javax.servlet.http.HttpServletRequest;
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import javax.servlet.http.HttpServletResponse;
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/**
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* Redirects from {@code /Gerrit#foo} to {@code /#foo} in JavaScript.
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*
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* <p>This redirect exists to convert the older /Gerrit URL into the more modern URL format which
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* does not use a servlet name for the host page. We cannot do the redirect here in the server side,
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* as it would lose any history token that appears in the URL. Instead we send an HTML page which
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* instructs the browser to replace the URL, but preserve the history token.
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*/
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@SuppressWarnings("serial")
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@Singleton
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public class LegacyGerritServlet extends HttpServlet {
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private final byte[] raw;
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private final byte[] compressed;
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@Inject
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LegacyGerritServlet() throws IOException {
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final String pageName = "LegacyGerrit.html";
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final String doc = HtmlDomUtil.readFile(getClass(), pageName);
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if (doc == null) {
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throw new FileNotFoundException("No " + pageName + " in webapp");
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}
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raw = doc.getBytes(HtmlDomUtil.ENC);
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compressed = HtmlDomUtil.compress(raw);
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}
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@Override
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protected void doGet(HttpServletRequest req, HttpServletResponse rsp) throws IOException {
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final byte[] tosend;
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if (RPCServletUtils.acceptsGzipEncoding(req)) {
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rsp.setHeader("Content-Encoding", "gzip");
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tosend = compressed;
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} else {
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tosend = raw;
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}
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CacheHeaders.setNotCacheable(rsp);
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rsp.setContentType("text/html");
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rsp.setCharacterEncoding(HtmlDomUtil.ENC.name());
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rsp.setContentLength(tosend.length);
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try (OutputStream out = rsp.getOutputStream()) {
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out.write(tosend);
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}
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}
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}
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