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1   /**
2    * This file Copyright (c) 2003-2010 Magnolia International
3    * Ltd.  (http://www.magnolia-cms.com). All rights reserved.
4    *
5    *
6    * This file is dual-licensed under both the Magnolia
7    * Network Agreement and the GNU General Public License.
8    * You may elect to use one or the other of these licenses.
9    *
10   * This file is distributed in the hope that it will be
11   * useful, but AS-IS and WITHOUT ANY WARRANTY; without even the
12   * implied warranty of MERCHANTABILITY or FITNESS FOR A
13   * PARTICULAR PURPOSE, TITLE, or NONINFRINGEMENT.
14   * Redistribution, except as permitted by whichever of the GPL
15   * or MNA you select, is prohibited.
16   *
17   * 1. For the GPL license (GPL), you can redistribute and/or
18   * modify this file under the terms of the GNU General
19   * Public License, Version 3, as published by the Free Software
20   * Foundation.  You should have received a copy of the GNU
21   * General Public License, Version 3 along with this program;
22   * if not, write to the Free Software Foundation, Inc., 51
23   * Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
24   *
25   * 2. For the Magnolia Network Agreement (MNA), this file
26   * and the accompanying materials are made available under the
27   * terms of the MNA which accompanies this distribution, and
28   * is available at http://www.magnolia-cms.com/mna.html
29   *
30   * Any modifications to this file must keep this entire header
31   * intact.
32   *
33   */
34  package info.magnolia.cms.security.auth.login;
35  
36  import info.magnolia.cms.filters.AbstractMgnlFilter;
37  import info.magnolia.context.MgnlContext;
38  import info.magnolia.logging.AuditLoggingUtil;
39  
40  import java.io.IOException;
41  import java.util.ArrayList;
42  import java.util.Collection;
43  
44  import javax.servlet.FilterChain;
45  import javax.servlet.ServletException;
46  import javax.servlet.http.HttpServletRequest;
47  import javax.servlet.http.HttpServletResponse;
48  
49  import org.slf4j.Logger;
50  import org.slf4j.LoggerFactory;
51  
52  /**
53   * Performs a login operation. Calls all {@link LoginHandler login handlers} until one can handle the request.
54   * $Id: LoginFilter.java 36890 2010-09-02 11:38:12Z pbaerfuss $
55   */
56  public class LoginFilter extends AbstractMgnlFilter {
57  
58      private static final Logger log = LoggerFactory.getLogger(LoginFilter.class);
59  
60      private Collection<LoginHandler> loginHandlers = new ArrayList<LoginHandler>();
61  
62      public void doFilter(HttpServletRequest request, HttpServletResponse response, FilterChain chain) throws IOException, ServletException {
63          for (LoginHandler handler : this.getLoginHandlers()) {
64              LoginResult loginResult = handler.handle(request, response);
65              LoginResult.setCurrentLoginResult(loginResult);
66              if (loginResult.getStatus() == LoginResult.STATUS_IN_PROCESS) {
67                  // special handling to support multi step login mechanisms like ntlm
68                  // do not continue with the filter chain
69                  return;
70              } else if (loginResult.getStatus() == LoginResult.STATUS_SUCCEEDED) {
71                  MgnlContext.login(loginResult.getUser());
72              }
73              AuditLoggingUtil.log(loginResult, request);
74  
75          }
76          // continue even if all login handlers failed
77          chain.doFilter(request, response);
78      }
79  
80      public Collection<LoginHandler> getLoginHandlers() {
81          return loginHandlers;
82      }
83  
84      public void setLoginHandlers(Collection<LoginHandler> loginHandlers) {
85          this.loginHandlers = loginHandlers;
86      }
87  
88      public void addLoginHandlers(LoginHandler handler) {
89          this.loginHandlers.add(handler);
90      }
91  
92  
93  
94  }