org.argeo.security.core/src/org/argeo/security/jcr/OsJcrAuthenticationProvider.java

   1 /*
   2  * Copyright (C) 2007-2012 Argeo GmbH
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  *         http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16 package org.argeo.security.jcr;
  17
  18 import java.util.Collection;
  19
  20 import javax.jcr.Node;
  21 import javax.jcr.Repository;
  22 import javax.jcr.RepositoryException;
  23 import javax.jcr.Session;
  24
  25 import org.argeo.ArgeoException;
  26 import org.argeo.jcr.JcrUtils;
  27 import org.argeo.security.OsAuthenticationToken;
  28 import org.argeo.security.SecurityUtils;
  29 import org.argeo.security.core.OsAuthenticationProvider;
  30 import org.springframework.security.authentication.BadCredentialsException;
  31 import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
  32 import org.springframework.security.core.Authentication;
  33 import org.springframework.security.core.AuthenticationException;
  34 import org.springframework.security.core.GrantedAuthority;
  35 import org.springframework.security.core.userdetails.UserDetails;
  36
  37 /** Relies on OS to authenticate and additionally setup JCR */
  38 public class OsJcrAuthenticationProvider extends OsAuthenticationProvider {
  39         private Repository repository;
  40         private Session nodeSession;
  41
  42         private UserDetails userDetails;
  43         private JcrSecurityModel jcrSecurityModel = new SimpleJcrSecurityModel();
  44
  45         private final static String JVM_OSUSER = System.getProperty("user.name");
  46
  47         public void init() {
  48                 try {
  49                         nodeSession = repository.login();
  50                 } catch (RepositoryException e) {
  51                         throw new ArgeoException("Cannot initialize", e);
  52                 }
  53         }
  54
  55         public void destroy() {
  56                 JcrUtils.logoutQuietly(nodeSession);
  57         }
  58
  59         public Authentication authenticate(Authentication authentication)
  60                         throws AuthenticationException {
  61                 if (authentication instanceof UsernamePasswordAuthenticationToken) {
  62                         // deal with remote access to internal server
  63                         // FIXME very primitive and unsecure at this sSession adminSession
  64                         // =tage
  65                         // consider using the keyring for username / password authentication
  66                         // or certificate
  67                         UsernamePasswordAuthenticationToken upat = (UsernamePasswordAuthenticationToken) authentication;
  68                         if (!upat.getPrincipal().toString().equals(JVM_OSUSER))
  69                                 throw new BadCredentialsException("Wrong credentials");
  70                         UsernamePasswordAuthenticationToken authen = new UsernamePasswordAuthenticationToken(
  71                                         authentication.getPrincipal(),
  72                                         authentication.getCredentials(), getBaseAuthorities());
  73                         authen.setDetails(userDetails);
  74                         return authen;
  75                 } else if (authentication instanceof OsAuthenticationToken) {
  76                         OsAuthenticationToken authen = (OsAuthenticationToken) super
  77                                         .authenticate(authentication);
  78                         try {
  79                                 // WARNING: at this stage we assume that the java properties
  80                                 // will have the same value
  81                                 Collection<? extends GrantedAuthority> authorities = getBaseAuthorities();
  82                                 String username = JVM_OSUSER;
  83                                 Node userProfile = jcrSecurityModel.sync(nodeSession, username,
  84                                                 SecurityUtils.authoritiesToStringList(authorities));
  85                                 JcrUserDetails.checkAccountStatus(userProfile);
  86
  87                                 userDetails = new JcrUserDetails(userProfile, authen
  88                                                 .getCredentials().toString(), authorities);
  89                                 authen.setDetails(userDetails);
  90                                 return authen;
  91                         } catch (RepositoryException e) {
  92                                 JcrUtils.discardQuietly(nodeSession);
  93                                 throw new ArgeoException(
  94                                                 "Unexpected exception when synchronizing OS and JCR security ",
  95                                                 e);
  96                         }
  97                 } else {
  98                         throw new ArgeoException("Unsupported authentication "
  99                                         + authentication.getClass());
 100                 }
 101         }
 102
 103         public void setRepository(Repository repository) {
 104                 this.repository = repository;
 105         }
 106
 107         public void setJcrSecurityModel(JcrSecurityModel jcrSecurityModel) {
 108                 this.jcrSecurityModel = jcrSecurityModel;
 109         }
 110
 111         @SuppressWarnings("rawtypes")
 112         public boolean supports(Class authentication) {
 113                 return OsAuthenticationToken.class.isAssignableFrom(authentication)
 114                                 || UsernamePasswordAuthenticationToken.class
 115                                                 .isAssignableFrom(authentication);
 116         }
 117 }