auth/SingleUserLoginModule.java

   1 package org.argeo.cms.auth;
   2
   3 import java.net.InetAddress;
   4 import java.net.UnknownHostException;
   5 import java.security.Principal;
   6 import java.util.Map;
   7 import java.util.Set;
   8
   9 import javax.naming.ldap.LdapName;
  10 import javax.security.auth.Subject;
  11 import javax.security.auth.callback.CallbackHandler;
  12 import javax.security.auth.kerberos.KerberosPrincipal;
  13 import javax.security.auth.login.LoginException;
  14 import javax.security.auth.spi.LoginModule;
  15 import javax.security.auth.x500.X500Principal;
  16
  17 import org.apache.commons.logging.Log;
  18 import org.apache.commons.logging.LogFactory;
  19 import org.argeo.api.NodeConstants;
  20 import org.argeo.api.security.DataAdminPrincipal;
  21 import org.argeo.cms.internal.auth.ImpliedByPrincipal;
  22 import org.argeo.naming.LdapAttrs;
  23 import org.argeo.osgi.useradmin.IpaUtils;
  24 import org.osgi.service.useradmin.Authorization;
  25
  26 public class SingleUserLoginModule implements LoginModule {
  27         private final static Log log = LogFactory.getLog(SingleUserLoginModule.class);
  28
  29         private Subject subject;
  30         private Map<String, Object> sharedState = null;
  31
  32         @SuppressWarnings("unchecked")
  33         @Override
  34         public void initialize(Subject subject, CallbackHandler callbackHandler, Map<String, ?> sharedState,
  35                         Map<String, ?> options) {
  36                 this.subject = subject;
  37                 this.sharedState = (Map<String, Object>) sharedState;
  38         }
  39
  40         @Override
  41         public boolean login() throws LoginException {
  42                 String username = System.getProperty("user.name");
  43                 if (!sharedState.containsKey(CmsAuthUtils.SHARED_STATE_NAME))
  44                         sharedState.put(CmsAuthUtils.SHARED_STATE_NAME, username);
  45                 return true;
  46         }
  47
  48         @Override
  49         public boolean commit() throws LoginException {
  50                 X500Principal principal;
  51                 KerberosPrincipal kerberosPrincipal = CmsAuthUtils.getSinglePrincipal(subject, KerberosPrincipal.class);
  52                 if (kerberosPrincipal != null) {
  53                         LdapName userDn = IpaUtils.kerberosToDn(kerberosPrincipal.getName());
  54                         principal = new X500Principal(userDn.toString());
  55                 } else {
  56                         Object username = sharedState.get(CmsAuthUtils.SHARED_STATE_NAME);
  57                         if (username == null)
  58                                 throw new LoginException("No username available");
  59                         String hostname;
  60                         try {
  61                                 hostname = InetAddress.getLocalHost().getHostName();
  62                         } catch (UnknownHostException e) {
  63                                 log.warn("Using localhost as hostname", e);
  64                                 hostname = "localhost";
  65                         }
  66                         String baseDn = ("." + hostname).replaceAll("\\.", ",dc=");
  67                         principal = new X500Principal(LdapAttrs.uid + "=" + username + baseDn);
  68                 }
  69                 Set<Principal> principals = subject.getPrincipals();
  70                 principals.add(principal);
  71                 principals.add(new ImpliedByPrincipal(NodeConstants.ROLE_ADMIN, principal));
  72                 principals.add(new DataAdminPrincipal());
  73
  74                 Authorization authorization = new SingleUserAuthorization();
  75                 subject.getPrivateCredentials().add(authorization);
  76
  77                 return true;
  78         }
  79
  80         @Override
  81         public boolean abort() throws LoginException {
  82                 return true;
  83         }
  84
  85         @Override
  86         public boolean logout() throws LoginException {
  87                 // TODO Auto-generated method stub
  88                 return true;
  89         }
  90
  91 }