| // Copyright (C) 2017 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.googlesource.gerrit.plugins.ootb; |
| |
| import java.io.File; |
| import java.io.IOException; |
| |
| import javax.servlet.Filter; |
| import javax.servlet.FilterChain; |
| import javax.servlet.FilterConfig; |
| import javax.servlet.ServletException; |
| import javax.servlet.ServletRequest; |
| import javax.servlet.ServletResponse; |
| import javax.servlet.http.HttpServletResponse; |
| |
| import org.eclipse.jgit.lib.Config; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import com.google.gerrit.server.config.GerritServerConfig; |
| import com.google.gerrit.server.config.SitePaths; |
| import com.google.inject.Inject; |
| import com.google.inject.Singleton; |
| |
| @Singleton |
| public class FirstTimeRedirect implements Filter { |
| private static Logger log = LoggerFactory.getLogger(FirstTimeRedirect.class); |
| |
| private final SitePaths sitePaths; |
| private final String redirectLocation; |
| |
| private boolean firstTime = true; |
| |
| @Inject |
| FirstTimeRedirect(@GerritServerConfig Config config, SitePaths sitePaths) { |
| this.sitePaths = sitePaths; |
| this.redirectLocation = config.getString("httpd", null, "firstTimeRedirectUrl"); |
| } |
| |
| @Override |
| public void init(FilterConfig filterConfig) throws ServletException { |
| } |
| |
| @Override |
| public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) |
| throws IOException, ServletException { |
| if (firstTime && isFirstTime()) { |
| ((HttpServletResponse) response).sendRedirect(redirectLocation); |
| firstTimeDone(); |
| } else { |
| chain.doFilter(request, response); |
| } |
| } |
| |
| private void firstTimeDone() { |
| try { |
| firstTimeFile().createNewFile(); |
| } catch (IOException e) { |
| log.error("Unable to mark first time redirect flag file", e); |
| firstTime = false; |
| } |
| } |
| |
| private boolean isFirstTime() { |
| if (!firstTime) { |
| return false; |
| } |
| |
| return (firstTime = redirectLocation != null && !firstTimeFile().exists()); |
| } |
| |
| private File firstTimeFile() { |
| return sitePaths.resolve(".firstTimeRedirect").toFile(); |
| } |
| |
| @Override |
| public void destroy() { |
| } |
| |
| } |