| // Copyright (C) 2011 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; |
| |
| import static javax.servlet.http.HttpServletResponse.SC_UNAUTHORIZED; |
| |
| import com.google.gerrit.server.account.AccountCache; |
| import com.google.gerrit.server.account.AccountState; |
| import com.google.gerrit.server.config.AuthConfig; |
| import com.google.gwtjsonrpc.server.XsrfException; |
| import com.google.inject.Inject; |
| import com.google.inject.Provider; |
| import com.google.inject.Singleton; |
| |
| 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.HttpServletRequest; |
| import javax.servlet.http.HttpServletResponse; |
| import javax.servlet.http.HttpServletResponseWrapper; |
| |
| /** |
| * Trust the authentication which is done by the container. |
| * <p> |
| * Check whether the container has already authenticated the user. If yes, then |
| * lookup the account and set the account ID in our current session. |
| * <p> |
| * This filter should only be configured to run, when authentication is |
| * configured to trust container authentication. This filter is intended only to |
| * protect the {@link ProjectServlet} and its handled URLs, which provide remote |
| * repository access over HTTP. |
| */ |
| @Singleton |
| class ContainerAuthFilter implements Filter { |
| public static final String REALM_NAME = "Gerrit Code Review"; |
| |
| private final Provider<WebSession> session; |
| private final AccountCache accountCache; |
| |
| @Inject |
| ContainerAuthFilter(Provider<WebSession> session, AccountCache accountCache) |
| throws XsrfException { |
| this.session = session; |
| this.accountCache = accountCache; |
| } |
| |
| @Override |
| public void init(FilterConfig config) { |
| } |
| |
| @Override |
| public void destroy() { |
| } |
| |
| @Override |
| public void doFilter(ServletRequest request, ServletResponse response, |
| FilterChain chain) throws IOException, ServletException { |
| HttpServletRequest req = (HttpServletRequest) request; |
| HttpServletResponseWrapper rsp = |
| new HttpServletResponseWrapper((HttpServletResponse) response); |
| |
| if (verify(req, rsp)) { |
| chain.doFilter(req, response); |
| } |
| } |
| |
| private boolean verify(HttpServletRequest req, HttpServletResponseWrapper rsp) |
| throws IOException { |
| final String username = req.getRemoteUser(); |
| final AccountState who = |
| (username == null) ? null : accountCache.getByUsername(username); |
| if (who == null || !who.getAccount().isActive()) { |
| rsp.sendError(SC_UNAUTHORIZED); |
| return false; |
| } |
| session.get().setUserAccountId(who.getAccount().getId()); |
| return true; |
| } |
| } |