| // 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 static com.google.gerrit.common.FileUtil.lastModified; |
| import static java.nio.charset.StandardCharsets.UTF_8; |
| |
| import com.google.gerrit.httpd.HtmlDomUtil; |
| import com.google.gerrit.server.config.GitwebCgiConfig; |
| import com.google.gerrit.server.config.SitePaths; |
| import com.google.gerrit.util.http.CacheHeaders; |
| import com.google.gerrit.util.http.RequestUtil; |
| import com.google.inject.Inject; |
| import com.google.inject.Singleton; |
| import java.io.IOException; |
| import java.nio.file.Path; |
| import java.util.concurrent.TimeUnit; |
| import javax.servlet.ServletOutputStream; |
| import javax.servlet.http.HttpServlet; |
| import javax.servlet.http.HttpServletRequest; |
| import javax.servlet.http.HttpServletResponse; |
| |
| abstract class GitwebCssServlet extends HttpServlet { |
| private static final long serialVersionUID = 1L; |
| |
| @Singleton |
| static class Site extends GitwebCssServlet { |
| private static final long serialVersionUID = 1L; |
| |
| @Inject |
| Site(SitePaths paths) throws IOException { |
| super(paths.site_css); |
| } |
| } |
| |
| @Singleton |
| static class Default extends GitwebCssServlet { |
| private static final long serialVersionUID = 1L; |
| |
| @Inject |
| Default(GitwebCgiConfig gwcc) throws IOException { |
| super(gwcc.getGitwebCss()); |
| } |
| } |
| |
| private final long modified; |
| private final byte[] raw_css; |
| private final byte[] gz_css; |
| |
| GitwebCssServlet(Path src) throws IOException { |
| if (src != null) { |
| final Path dir = src.getParent(); |
| final String name = src.getFileName().toString(); |
| final String raw = HtmlDomUtil.readFile(dir, name); |
| if (raw != null) { |
| modified = lastModified(src); |
| raw_css = raw.getBytes(UTF_8); |
| 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(HttpServletRequest req) { |
| return modified; |
| } |
| |
| @Override |
| protected void doGet(HttpServletRequest req, HttpServletResponse rsp) throws IOException { |
| if (raw_css != null) { |
| rsp.setContentType("text/css"); |
| rsp.setCharacterEncoding(UTF_8.name()); |
| final byte[] toSend; |
| if (RequestUtil.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); |
| |
| try (ServletOutputStream os = rsp.getOutputStream()) { |
| os.write(toSend); |
| } |
| } else { |
| CacheHeaders.setNotCacheable(rsp); |
| rsp.sendError(HttpServletResponse.SC_NOT_FOUND); |
| } |
| } |
| } |