| // Copyright (C) 2010 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.gwtexpui.server.CacheHeaders; |
| import com.google.inject.Inject; |
| import com.google.inject.Singleton; |
| |
| import org.eclipse.jgit.util.IO; |
| |
| import java.io.File; |
| import java.io.FileNotFoundException; |
| 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") |
| @Singleton |
| class GitWebJavaScriptServlet extends HttpServlet { |
| private final long modified; |
| private final byte[] raw; |
| |
| @Inject |
| GitWebJavaScriptServlet(final GitWebConfig gitWebConfig) throws IOException { |
| byte[] png; |
| final File src = gitWebConfig.getGitwebJS(); |
| if (src != null) { |
| try { |
| png = IO.readFully(src); |
| } catch (FileNotFoundException e) { |
| png = null; |
| } |
| modified = src.lastModified(); |
| } else { |
| modified = -1; |
| png = null; |
| } |
| raw = png; |
| } |
| |
| @Override |
| protected long getLastModified(final HttpServletRequest req) { |
| return modified; |
| } |
| |
| @Override |
| protected void doGet(final HttpServletRequest req, |
| final HttpServletResponse rsp) throws IOException { |
| if (raw != null) { |
| rsp.setContentType("text/javascript"); |
| rsp.setContentLength(raw.length); |
| rsp.setDateHeader("Last-Modified", modified); |
| CacheHeaders.setCacheable(req, rsp, 5, TimeUnit.MINUTES); |
| |
| final ServletOutputStream os = rsp.getOutputStream(); |
| try { |
| os.write(raw); |
| } finally { |
| os.close(); |
| } |
| } else { |
| CacheHeaders.setNotCacheable(rsp); |
| rsp.sendError(HttpServletResponse.SC_NOT_FOUND); |
| } |
| } |
| } |