JcrLdapSynchronizer.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.ldap.jcr;
  17
  18 import java.security.NoSuchAlgorithmException;
  19 import java.security.SecureRandom;
  20 import java.util.ArrayList;
  21 import java.util.Arrays;
  22 import java.util.Collection;
  23 import java.util.HashMap;
  24 import java.util.List;
  25 import java.util.Map;
  26 import java.util.Random;
  27 import java.util.SortedSet;
  28
  29 import javax.jcr.Node;
  30 import javax.jcr.NodeIterator;
  31 import javax.jcr.Repository;
  32 import javax.jcr.RepositoryException;
  33 import javax.jcr.Session;
  34 import javax.jcr.query.Query;
  35 import javax.jcr.version.VersionManager;
  36 import javax.naming.Name;
  37 import javax.naming.directory.BasicAttribute;
  38 import javax.naming.directory.DirContext;
  39 import javax.naming.directory.ModificationItem;
  40
  41 import org.apache.commons.logging.Log;
  42 import org.apache.commons.logging.LogFactory;
  43 import org.argeo.ArgeoException;
  44 import org.argeo.jcr.ArgeoNames;
  45 import org.argeo.jcr.ArgeoTypes;
  46 import org.argeo.jcr.JcrUtils;
  47 import org.argeo.security.SecurityUtils;
  48 import org.argeo.security.jcr.JcrSecurityModel;
  49 import org.argeo.security.jcr.JcrUserDetails;
  50 import org.argeo.security.jcr.SimpleJcrSecurityModel;
  51 import org.springframework.ldap.core.ContextMapper;
  52 import org.springframework.ldap.core.DirContextAdapter;
  53 import org.springframework.ldap.core.DirContextOperations;
  54 import org.springframework.ldap.core.DistinguishedName;
  55 import org.springframework.ldap.core.LdapTemplate;
  56 import org.springframework.security.authentication.encoding.PasswordEncoder;
  57 import org.springframework.security.core.GrantedAuthority;
  58 import org.springframework.security.core.userdetails.UserDetails;
  59 import org.springframework.security.ldap.LdapUsernameToDnMapper;
  60 import org.springframework.security.ldap.userdetails.UserDetailsContextMapper;
  61
  62 /** Makes sure that LDAP and JCR are in line. */
  63 public class JcrLdapSynchronizer implements UserDetailsContextMapper,
  64                 ArgeoNames {
  65         private final static Log log = LogFactory.getLog(JcrLdapSynchronizer.class);
  66
  67         // LDAP
  68         private LdapTemplate ldapTemplate;
  69         /**
  70          * LDAP template whose context source has an object factory set to null. see
  71          * <a href=
  72          * "http://forum.springsource.org/showthread.php?55955-Persistent-search-with-spring-ldap"
  73          * >this</a>
  74          */
  75         // private LdapTemplate rawLdapTemplate;
  76
  77         private String userBase;
  78         private String usernameAttribute;
  79         private String passwordAttribute;
  80         private String[] userClasses;
  81         // private String defaultUserRole ="ROLE_USER";
  82
  83         // private NamingListener ldapUserListener;
  84         // private SearchControls subTreeSearchControls;
  85         private LdapUsernameToDnMapper usernameMapper;
  86
  87         private PasswordEncoder passwordEncoder;
  88         private final Random random;
  89
  90         // JCR
  91         /** Admin session on the main workspace */
  92         private Session nodeSession;
  93         private Repository repository;
  94
  95         // private JcrProfileListener jcrProfileListener;
  96         private JcrSecurityModel jcrSecurityModel = new SimpleJcrSecurityModel();
  97
  98         // Mapping
  99         private Map<String, String> propertyToAttributes = new HashMap<String, String>();
 100
 101         public JcrLdapSynchronizer() {
 102                 random = createRandom();
 103         }
 104
 105         public void init() {
 106                 try {
 107                         nodeSession = repository.login();
 108
 109                         // TODO put this in a different thread, and poll the LDAP server
 110                         // until it is up
 111                         try {
 112                                 synchronize();
 113
 114                                 // LDAP
 115                                 // subTreeSearchControls = new SearchControls();
 116                                 // subTreeSearchControls
 117                                 // .setSearchScope(SearchControls.SUBTREE_SCOPE);
 118                                 // LDAP listener
 119                                 // ldapUserListener = new LdapUserListener();
 120                                 // rawLdapTemplate.executeReadOnly(new ContextExecutor() {
 121                                 // public Object executeWithContext(DirContext ctx)
 122                                 // throws NamingException {
 123                                 // EventDirContext ectx = (EventDirContext) ctx.lookup("");
 124                                 // ectx.addNamingListener(userBase, "("
 125                                 // + usernameAttribute + "=*)",
 126                                 // subTreeSearchControls, ldapUserListener);
 127                                 // return null;
 128                                 // }
 129                                 // });
 130                         } catch (Exception e) {
 131                                 log.error("Could not synchronize and listen to LDAP,"
 132                                                 + " probably because the LDAP server is not available."
 133                                                 + " Restart the system as soon as possible.", e);
 134                         }
 135
 136                         // JCR
 137                         // String[] nodeTypes = { ArgeoTypes.ARGEO_USER_PROFILE };
 138                         // jcrProfileListener = new JcrProfileListener();
 139                         // noLocal is used so that we are not notified when we modify JCR
 140                         // from LDAP
 141                         // nodeSession
 142                         // .getWorkspace()
 143                         // .getObservationManager()
 144                         // .addEventListener(jcrProfileListener,
 145                         // Event.PROPERTY_CHANGED | Event.NODE_ADDED, "/",
 146                         // true, null, nodeTypes, true);
 147                 } catch (Exception e) {
 148                         JcrUtils.logoutQuietly(nodeSession);
 149                         throw new ArgeoException("Cannot initialize LDAP/JCR synchronizer",
 150                                         e);
 151                 }
 152         }
 153
 154         public void destroy() {
 155                 // JcrUtils.removeListenerQuietly(nodeSession, jcrProfileListener);
 156                 JcrUtils.logoutQuietly(nodeSession);
 157                 // try {
 158                 // rawLdapTemplate.executeReadOnly(new ContextExecutor() {
 159                 // public Object executeWithContext(DirContext ctx)
 160                 // throws NamingException {
 161                 // EventDirContext ectx = (EventDirContext) ctx.lookup("");
 162                 // ectx.removeNamingListener(ldapUserListener);
 163                 // return null;
 164                 // }
 165                 // });
 166                 // } catch (Exception e) {
 167                 // // silent (LDAP server may have been shutdown already)
 168                 // if (log.isTraceEnabled())
 169                 // log.trace("Cannot remove LDAP listener", e);
 170                 // }
 171         }
 172
 173         /*
 174          * LDAP TO JCR
 175          */
 176         /** Full synchronization between LDAP and JCR. LDAP has priority. */
 177         protected void synchronize() {
 178                 try {
 179                         Name userBaseName = new DistinguishedName(userBase);
 180                         // TODO subtree search?
 181                         @SuppressWarnings("unchecked")
 182                         List<String> userPaths = (List<String>) ldapTemplate.listBindings(
 183                                         userBaseName, new ContextMapper() {
 184                                                 public Object mapFromContext(Object ctxObj) {
 185                                                         try {
 186                                                                 return mapLdapToJcr((DirContextAdapter) ctxObj);
 187                                                         } catch (Exception e) {
 188                                                                 // do not break process because of error
 189                                                                 log.error(
 190                                                                                 "Could not LDAP->JCR synchronize user "
 191                                                                                                 + ctxObj, e);
 192                                                                 return null;
 193                                                         }
 194                                                 }
 195                                         });
 196
 197                         // create accounts which are not in LDAP
 198                         Query query = nodeSession
 199                                         .getWorkspace()
 200                                         .getQueryManager()
 201                                         .createQuery(
 202                                                         "select * from [" + ArgeoTypes.ARGEO_USER_PROFILE
 203                                                                         + "]", Query.JCR_SQL2);
 204                         NodeIterator it = query.execute().getNodes();
 205                         while (it.hasNext()) {
 206                                 Node userProfile = it.nextNode();
 207                                 String path = userProfile.getPath();
 208                                 try {
 209                                         if (!userPaths.contains(path)) {
 210                                                 String username = userProfile
 211                                                                 .getProperty(ARGEO_USER_ID).getString();
 212                                                 // GrantedAuthority[] authorities = {new
 213                                                 // GrantedAuthorityImpl(defaultUserRole)};
 214                                                 List<GrantedAuthority> authorities = new ArrayList<GrantedAuthority>();
 215                                                 JcrUserDetails userDetails = new JcrUserDetails(
 216                                                                 userProfile, username, authorities);
 217                                                 String dn = createLdapUser(userDetails);
 218                                                 log.warn("Created ldap entry '" + dn + "' for user '"
 219                                                                 + username + "'");
 220
 221                                                 // if(!userProfile.getProperty(ARGEO_ENABLED).getBoolean()){
 222                                                 // continue profiles;
 223                                                 // }
 224                                                 //
 225                                                 // log.warn("Path "
 226                                                 // + path
 227                                                 // + " not found in LDAP, disabling user "
 228                                                 // + userProfile.getProperty(ArgeoNames.ARGEO_USER_ID)
 229                                                 // .getString());
 230
 231                                                 // Temporary hack to repair previous behaviour
 232                                                 if (!userProfile.getProperty(ARGEO_ENABLED)
 233                                                                 .getBoolean()) {
 234                                                         VersionManager versionManager = nodeSession
 235                                                                         .getWorkspace().getVersionManager();
 236                                                         versionManager.checkout(userProfile.getPath());
 237                                                         userProfile.setProperty(ArgeoNames.ARGEO_ENABLED,
 238                                                                         true);
 239                                                         nodeSession.save();
 240                                                         versionManager.checkin(userProfile.getPath());
 241                                                 }
 242                                         }
 243                                 } catch (Exception e) {
 244                                         log.error("Cannot process " + path, e);
 245                                 }
 246                         }
 247                 } catch (Exception e) {
 248                         JcrUtils.discardQuietly(nodeSession);
 249                         log.error("Cannot synchronize LDAP and JCR", e);
 250                         // throw new ArgeoException("Cannot synchronize LDAP and JCR", e);
 251                 }
 252         }
 253
 254         private String createLdapUser(UserDetails user) {
 255                 DirContextAdapter ctx = new DirContextAdapter();
 256                 mapUserToContext(user, ctx);
 257                 DistinguishedName dn = usernameMapper.buildDn(user.getUsername());
 258                 ldapTemplate.bind(dn, ctx, null);
 259                 return dn.toString();
 260         }
 261
 262         /** Called during authentication in order to retrieve user details */
 263         public UserDetails mapUserFromContext(final DirContextOperations ctx,
 264                         final String username,
 265                         Collection<? extends GrantedAuthority> authorities) {
 266                 if (ctx == null)
 267                         throw new ArgeoException("No LDAP information for user " + username);
 268
 269                 String ldapUsername = ctx.getStringAttribute(usernameAttribute);
 270                 if (!ldapUsername.equals(username))
 271                         throw new ArgeoException("Logged in with username " + username
 272                                         + " but LDAP user is " + ldapUsername);
 273
 274                 Node userProfile = jcrSecurityModel.sync(nodeSession, username,
 275                                 SecurityUtils.authoritiesToStringList(authorities));
 276                 // JcrUserDetails.checkAccountStatus(userProfile);
 277
 278                 // password
 279                 SortedSet<?> passwordAttributes = ctx
 280                                 .getAttributeSortedStringSet(passwordAttribute);
 281                 String password;
 282                 if (passwordAttributes == null || passwordAttributes.size() == 0) {
 283                         // throw new ArgeoException("No password found for user " +
 284                         // username);
 285                         password = "NULL";
 286                 } else {
 287                         byte[] arr = (byte[]) passwordAttributes.first();
 288                         password = new String(arr);
 289                         // erase password
 290                         Arrays.fill(arr, (byte) 0);
 291                 }
 292
 293                 try {
 294                         return new JcrUserDetails(userProfile, password, authorities);
 295                 } catch (RepositoryException e) {
 296                         throw new ArgeoException("Cannot retrieve user details for "
 297                                         + username, e);
 298                 }
 299         }
 300
 301         /**
 302          * Writes an LDAP context to the JCR user profile.
 303          *
 304          * @return path to user profile
 305          */
 306         protected synchronized String mapLdapToJcr(DirContextAdapter ctx) {
 307                 Session session = nodeSession;
 308                 try {
 309                         // process
 310                         String username = ctx.getStringAttribute(usernameAttribute);
 311
 312                         Node userProfile = jcrSecurityModel.sync(session, username, null);
 313                         Map<String, String> modifications = new HashMap<String, String>();
 314                         for (String jcrProperty : propertyToAttributes.keySet())
 315                                 ldapToJcr(userProfile, jcrProperty, ctx, modifications);
 316
 317                         int modifCount = modifications.size();
 318                         if (modifCount > 0) {
 319                                 session.getWorkspace().getVersionManager()
 320                                                 .checkout(userProfile.getPath());
 321                                 for (String prop : modifications.keySet())
 322                                         userProfile.setProperty(prop, modifications.get(prop));
 323                                 JcrUtils.updateLastModified(userProfile);
 324                                 session.save();
 325                                 session.getWorkspace().getVersionManager()
 326                                                 .checkin(userProfile.getPath());
 327                                 if (log.isDebugEnabled())
 328                                         log.debug("Mapped " + modifCount + " LDAP modification"
 329                                                         + (modifCount == 1 ? "" : "s") + " from "
 330                                                         + ctx.getDn() + " to " + userProfile);
 331                         }
 332                         return userProfile.getPath();
 333                 } catch (Exception e) {
 334                         JcrUtils.discardQuietly(session);
 335                         throw new ArgeoException("Cannot synchronize JCR and LDAP", e);
 336                 }
 337         }
 338
 339         /** Maps an LDAP property to a JCR property */
 340         protected void ldapToJcr(Node userProfile, String jcrProperty,
 341                         DirContextOperations ctx, Map<String, String> modifications) {
 342                 // TODO do we really need DirContextOperations?
 343                 try {
 344                         String ldapAttribute;
 345                         if (propertyToAttributes.containsKey(jcrProperty))
 346                                 ldapAttribute = propertyToAttributes.get(jcrProperty);
 347                         else
 348                                 throw new ArgeoException(
 349                                                 "No LDAP attribute mapped for JCR proprty "
 350                                                                 + jcrProperty);
 351
 352                         String value = ctx.getStringAttribute(ldapAttribute);
 353                         String jcrValue = userProfile.hasProperty(jcrProperty) ? userProfile
 354                                         .getProperty(jcrProperty).getString() : null;
 355                         if (value != null && jcrValue != null) {
 356                                 if (!value.equals(jcrValue))
 357                                         modifications.put(jcrProperty, value);
 358                         } else if (value != null && jcrValue == null) {
 359                                 modifications.put(jcrProperty, value);
 360                         } else if (value == null && jcrValue != null) {
 361                                 modifications.put(jcrProperty, value);
 362                         }
 363                 } catch (Exception e) {
 364                         throw new ArgeoException("Cannot map JCR property " + jcrProperty
 365                                         + " from LDAP", e);
 366                 }
 367         }
 368
 369         /*
 370          * JCR to LDAP
 371          */
 372
 373         public void mapUserToContext(UserDetails user, final DirContextAdapter ctx) {
 374                 if (!(user instanceof JcrUserDetails))
 375                         throw new ArgeoException("Unsupported user details: "
 376                                         + user.getClass());
 377
 378                 ctx.setAttributeValues("objectClass", userClasses);
 379                 ctx.setAttributeValue(usernameAttribute, user.getUsername());
 380                 ctx.setAttributeValue(passwordAttribute,
 381                                 encodePassword(user.getPassword()));
 382
 383                 final JcrUserDetails jcrUserDetails = (JcrUserDetails) user;
 384                 try {
 385                         Node userProfile = nodeSession
 386                                         .getNode(jcrUserDetails.getHomePath()).getNode(
 387                                                         ARGEO_PROFILE);
 388                         for (String jcrProperty : propertyToAttributes.keySet()) {
 389                                 if (userProfile.hasProperty(jcrProperty)) {
 390                                         ModificationItem mi = jcrToLdap(jcrProperty, userProfile
 391                                                         .getProperty(jcrProperty).getString());
 392                                         if (mi != null)
 393                                                 ctx.setAttribute(mi.getAttribute());
 394                                 }
 395                         }
 396                         if (log.isTraceEnabled())
 397                                 log.trace("Mapped " + userProfile + " to " + ctx.getDn());
 398                 } catch (RepositoryException e) {
 399                         throw new ArgeoException("Cannot synchronize JCR and LDAP", e);
 400                 }
 401
 402         }
 403
 404         /** Maps a JCR property to an LDAP property */
 405         protected ModificationItem jcrToLdap(String jcrProperty, String value) {
 406                 // TODO do we really need DirContextOperations?
 407                 try {
 408                         String ldapAttribute;
 409                         if (propertyToAttributes.containsKey(jcrProperty))
 410                                 ldapAttribute = propertyToAttributes.get(jcrProperty);
 411                         else
 412                                 return null;
 413
 414                         // fix issue with empty 'sn' in LDAP
 415                         if (ldapAttribute.equals("sn") && (value.trim().equals("")))
 416                                 return null;
 417                         // fix issue with empty 'description' in LDAP
 418                         if (ldapAttribute.equals("description") && value.trim().equals(""))
 419                                 return null;
 420                         BasicAttribute attr = new BasicAttribute(
 421                                         propertyToAttributes.get(jcrProperty), value);
 422                         ModificationItem mi = new ModificationItem(
 423                                         DirContext.REPLACE_ATTRIBUTE, attr);
 424                         return mi;
 425                 } catch (Exception e) {
 426                         throw new ArgeoException("Cannot map JCR property " + jcrProperty
 427                                         + " from LDAP", e);
 428                 }
 429         }
 430
 431         /*
 432          * UTILITIES
 433          */
 434         protected String encodePassword(String password) {
 435                 if (!password.startsWith("{")) {
 436                         byte[] salt = new byte[16];
 437                         random.nextBytes(salt);
 438                         return passwordEncoder.encodePassword(password, salt);
 439                 } else {
 440                         return password;
 441                 }
 442         }
 443
 444         private static Random createRandom() {
 445                 try {
 446                         return SecureRandom.getInstance("SHA1PRNG");
 447                 } catch (NoSuchAlgorithmException e) {
 448                         return new Random(System.currentTimeMillis());
 449                 }
 450         }
 451
 452         /*
 453          * DEPENDENCY INJECTION
 454          */
 455
 456         public void setLdapTemplate(LdapTemplate ldapTemplate) {
 457                 this.ldapTemplate = ldapTemplate;
 458         }
 459
 460         public void setRawLdapTemplate(LdapTemplate rawLdapTemplate) {
 461                 // this.rawLdapTemplate = rawLdapTemplate;
 462         }
 463
 464         public void setRepository(Repository repository) {
 465                 this.repository = repository;
 466         }
 467
 468         public void setUserBase(String userBase) {
 469                 this.userBase = userBase;
 470         }
 471
 472         public void setUsernameAttribute(String usernameAttribute) {
 473                 this.usernameAttribute = usernameAttribute;
 474         }
 475
 476         public void setPropertyToAttributes(Map<String, String> propertyToAttributes) {
 477                 this.propertyToAttributes = propertyToAttributes;
 478         }
 479
 480         public void setUsernameMapper(LdapUsernameToDnMapper usernameMapper) {
 481                 this.usernameMapper = usernameMapper;
 482         }
 483
 484         public void setPasswordAttribute(String passwordAttribute) {
 485                 this.passwordAttribute = passwordAttribute;
 486         }
 487
 488         public void setUserClasses(String[] userClasses) {
 489                 this.userClasses = userClasses;
 490         }
 491
 492         public void setPasswordEncoder(PasswordEncoder passwordEncoder) {
 493                 this.passwordEncoder = passwordEncoder;
 494         }
 495
 496         public void setJcrSecurityModel(JcrSecurityModel jcrSecurityModel) {
 497                 this.jcrSecurityModel = jcrSecurityModel;
 498         }
 499
 500         /** Listen to LDAP */
 501         // class LdapUserListener implements ObjectChangeListener,
 502         // NamespaceChangeListener, UnsolicitedNotificationListener {
 503         //
 504         // public void namingExceptionThrown(NamingExceptionEvent evt) {
 505         // evt.getException().printStackTrace();
 506         // }
 507         //
 508         // public void objectChanged(NamingEvent evt) {
 509         // Binding user = evt.getNewBinding();
 510         // // TODO find a way not to be called when JCR is the source of the
 511         // // modification
 512         // DirContextAdapter ctx = (DirContextAdapter) ldapTemplate
 513         // .lookup(user.getName());
 514         // mapLdapToJcr(ctx);
 515         // }
 516         //
 517         // public void objectAdded(NamingEvent evt) {
 518         // Binding user = evt.getNewBinding();
 519         // DirContextAdapter ctx = (DirContextAdapter) ldapTemplate
 520         // .lookup(user.getName());
 521         // mapLdapToJcr(ctx);
 522         // }
 523         //
 524         // public void objectRemoved(NamingEvent evt) {
 525         // if (log.isDebugEnabled())
 526         // log.debug(evt);
 527         // }
 528         //
 529         // public void objectRenamed(NamingEvent evt) {
 530         // if (log.isDebugEnabled())
 531         // log.debug(evt);
 532         // }
 533         //
 534         // public void notificationReceived(UnsolicitedNotificationEvent evt) {
 535         // UnsolicitedNotification notification = evt.getNotification();
 536         // NamingException ne = notification.getException();
 537         // String msg = "LDAP notification " + "ID=" + notification.getID()
 538         // + ", referrals=" + notification.getReferrals();
 539         // if (ne != null) {
 540         // if (log.isTraceEnabled())
 541         // log.trace(msg + ", exception= " + ne, ne);
 542         // else
 543         // log.warn(msg + ", exception= " + ne);
 544         // } else if (log.isDebugEnabled()) {
 545         // log.debug("Unsollicited LDAP notification " + msg);
 546         // }
 547         // }
 548         //
 549         // }
 550
 551         /** Listen to JCR */
 552         // class JcrProfileListener implements EventListener {
 553         //
 554         // public void onEvent(EventIterator events) {
 555         // try {
 556         // final Map<Name, List<ModificationItem>> modifications = new HashMap<Name,
 557         // List<ModificationItem>>();
 558         // while (events.hasNext()) {
 559         // Event event = events.nextEvent();
 560         // try {
 561         // if (Event.PROPERTY_CHANGED == event.getType()) {
 562         // Property property = (Property) nodeSession
 563         // .getItem(event.getPath());
 564         // String propertyName = property.getName();
 565         // Node userProfile = property.getParent();
 566         // String username = userProfile.getProperty(
 567         // ARGEO_USER_ID).getString();
 568         // if (propertyToAttributes.containsKey(propertyName)) {
 569         // Name name = usernameMapper.buildDn(username);
 570         // if (!modifications.containsKey(name))
 571         // modifications.put(name,
 572         // new ArrayList<ModificationItem>());
 573         // String value = property.getString();
 574         // ModificationItem mi = jcrToLdap(propertyName,
 575         // value);
 576         // if (mi != null)
 577         // modifications.get(name).add(mi);
 578         // }
 579         // } else if (Event.NODE_ADDED == event.getType()) {
 580         // Node userProfile = nodeSession.getNode(event
 581         // .getPath());
 582         // String username = userProfile.getProperty(
 583         // ARGEO_USER_ID).getString();
 584         // Name name = usernameMapper.buildDn(username);
 585         // for (String propertyName : propertyToAttributes
 586         // .keySet()) {
 587         // if (!modifications.containsKey(name))
 588         // modifications.put(name,
 589         // new ArrayList<ModificationItem>());
 590         // String value = userProfile.getProperty(
 591         // propertyName).getString();
 592         // ModificationItem mi = jcrToLdap(propertyName,
 593         // value);
 594         // if (mi != null)
 595         // modifications.get(name).add(mi);
 596         // }
 597         // }
 598         // } catch (RepositoryException e) {
 599         // throw new ArgeoException("Cannot process event "
 600         // + event, e);
 601         // }
 602         // }
 603         //
 604         // for (Name name : modifications.keySet()) {
 605         // List<ModificationItem> userModifs = modifications.get(name);
 606         // int modifCount = userModifs.size();
 607         // ldapTemplate.modifyAttributes(name, userModifs
 608         // .toArray(new ModificationItem[modifCount]));
 609         // if (log.isDebugEnabled())
 610         // log.debug("Mapped " + modifCount + " JCR modification"
 611         // + (modifCount == 1 ? "" : "s") + " to " + name);
 612         // }
 613         // } catch (Exception e) {
 614         // // if (log.isDebugEnabled())
 615         // // e.printStackTrace();
 616         // throw new ArgeoException("Cannot process JCR events ("
 617         // + e.getMessage() + ")", e);
 618         // }
 619         // }
 620         //
 621         // }
 622 }