| // Copyright (C) 2009 The Android Open Source Project |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| package com.google.gerrit.httpd.gitweb; |
| |
| import com.google.gerrit.httpd.GitWebConfig; |
| import com.google.gerrit.httpd.HtmlDomUtil; |
| import com.google.gerrit.server.config.SitePaths; |
| import com.google.gwtexpui.server.CacheHeaders; |
| import com.google.gwtjsonrpc.server.RPCServletUtils; |
| import com.google.inject.Inject; |
| import com.google.inject.Singleton; |
| |
| import java.io.File; |
| import java.io.IOException; |
| import java.util.concurrent.TimeUnit; |
| |
| import javax.servlet.ServletOutputStream; |
| import javax.servlet.http.HttpServlet; |
| import javax.servlet.http.HttpServletRequest; |
| import javax.servlet.http.HttpServletResponse; |
| |
| @SuppressWarnings("serial") |
| abstract class GitWebCssServlet extends HttpServlet { |
| @Singleton |
| static class Site extends GitWebCssServlet { |
| @Inject |
| Site(SitePaths paths, GitWebConfig gwc) throws IOException { |
| super(paths.site_css, gwc); |
| } |
| } |
| |
| @Singleton |
| static class Default extends GitWebCssServlet { |
| @Inject |
| Default(GitWebConfig gwc) throws IOException { |
| super(gwc.getGitwebCSS(), gwc); |
| } |
| } |
| |
| private static final String ENC = "UTF-8"; |
| |
| private final long modified; |
| private final byte[] raw_css; |
| private final byte[] gz_css; |
| |
| GitWebCssServlet(final File src, final GitWebConfig gitWebConfig) |
| throws IOException { |
| if (src != null) { |
| final File dir = src.getParentFile(); |
| final String name = src.getName(); |
| final String raw = HtmlDomUtil.readFile(dir, name); |
| if (raw != null) { |
| modified = src.lastModified(); |
| raw_css = raw.getBytes(ENC); |
| gz_css = HtmlDomUtil.compress(raw_css); |
| } else { |
| modified = -1L; |
| raw_css = null; |
| gz_css = null; |
| } |
| } else { |
| modified = -1; |
| raw_css = null; |
| gz_css = null; |
| } |
| } |
| |
| @Override |
| protected long getLastModified(final HttpServletRequest req) { |
| return modified; |
| } |
| |
| @Override |
| protected void doGet(final HttpServletRequest req, |
| final HttpServletResponse rsp) throws IOException { |
| if (raw_css != null) { |
| rsp.setContentType("text/css"); |
| rsp.setCharacterEncoding(ENC); |
| final byte[] toSend; |
| if (RPCServletUtils.acceptsGzipEncoding(req)) { |
| rsp.setHeader("Content-Encoding", "gzip"); |
| toSend = gz_css; |
| } else { |
| toSend = raw_css; |
| } |
| rsp.setContentLength(toSend.length); |
| rsp.setDateHeader("Last-Modified", modified); |
| CacheHeaders.setCacheable(req, rsp, 5, TimeUnit.MINUTES); |
| |
| final ServletOutputStream os = rsp.getOutputStream(); |
| try { |
| os.write(toSend); |
| } finally { |
| os.close(); |
| } |
| } else { |
| CacheHeaders.setNotCacheable(rsp); |
| rsp.sendError(HttpServletResponse.SC_NOT_FOUND); |
| } |
| } |
| } |