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com.foreach.across.modules.ldap.services.LdapSynchronizationServiceImpl Maven / Gradle / Ivy
/*
* Copyright 2014 the original author or authors
*
* 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.foreach.across.modules.ldap.services;
import com.foreach.across.modules.ldap.LdapModuleSettings;
import com.foreach.across.modules.ldap.business.LdapConnector;
import com.foreach.across.modules.ldap.business.LdapConnectorSettings;
import com.foreach.across.modules.ldap.business.LdapUserDirectory;
import com.foreach.across.modules.ldap.events.LdapEntityDeletedEvent;
import com.foreach.across.modules.ldap.events.LdapEntityProcessedEvent;
import com.foreach.across.modules.ldap.services.properties.LdapConnectorSettingsService;
import com.foreach.across.modules.spring.security.infrastructure.business.SecurityPrincipalAuthenticationToken;
import com.foreach.across.modules.spring.security.infrastructure.services.CloseableAuthentication;
import com.foreach.across.modules.spring.security.infrastructure.services.SecurityPrincipalService;
import com.foreach.across.modules.user.business.*;
import com.foreach.across.modules.user.services.GroupService;
import com.foreach.across.modules.user.services.UserService;
import lombok.RequiredArgsConstructor;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.collections4.CollectionUtils;
import org.apache.commons.lang3.StringUtils;
import org.apache.commons.lang3.time.StopWatch;
import org.springframework.context.ApplicationEventPublisher;
import org.springframework.ldap.core.DirContextAdapter;
import java.util.*;
/**
* @author Marc Vanbrabant
* @since 1.0.0
*/
@Slf4j
@RequiredArgsConstructor
public class LdapSynchronizationServiceImpl implements LdapSynchronizationService
{
private final UserService userService;
private final GroupService groupService;
private final LdapConnectorSettingsService ldapConnectorSettingsService;
private final LdapSearchService ldapSearchService;
private final SecurityPrincipalService securityPrincipalService;
private final ApplicationEventPublisher eventPublisher;
private final LdapPropertiesService ldapPropertiesService;
private final LdapModuleSettings ldapModuleSettings;
private Set busy = new HashSet<>();
public boolean synchronizeData( LdapUserDirectory ldapUserDirectory ) {
if ( !busy.contains( ldapUserDirectory ) ) {
busy.add( ldapUserDirectory );
LOG.info( "Synchronizing directory {}", ldapUserDirectory.getName() );
StopWatch watch = new StopWatch();
watch.start();
int totalUsersSynchronized = 0, totalGroupsSynchronized = 0;
CloseableAuthentication authentication = authenticateAsConnector( ldapUserDirectory.getLdapConnector() );
try {
Set users = performUserSynchronization( ldapUserDirectory );
Map groups = performGroupSynchronization( ldapUserDirectory );
synchronizeUserMemberships( ldapUserDirectory, users, groups );
removeDeletedGroups( ldapUserDirectory, groups );
removeDeletedUsers( ldapUserDirectory, users );
totalUsersSynchronized += users.size();
totalGroupsSynchronized += groups.size();
}
catch ( Exception ie ) {
LOG.error( "Failed to synchronize directory {}", ldapUserDirectory.getName(), ie );
}
finally {
if ( authentication != null ) {
authentication.close();
}
}
watch.stop();
LOG.info( "Synchronization of directory {} finished, users synchronized: {}, groups synchronized: {}",
ldapUserDirectory.getName(), totalUsersSynchronized, totalGroupsSynchronized );
LOG.info( "Elapsed time: {}", watch.toString() );
busy.remove( ldapUserDirectory );
return true;
}
LOG.debug( "Skipping synchronization of directory {}, still busy", ldapUserDirectory.getName() );
return false;
}
private void removeDeletedUsers( LdapUserDirectory ldapUserDirectory, Set users ) {
if ( ldapModuleSettings.isDeleteUsersAndGroupsWhenDeletedFromLdapSource() ) {
CollectionUtils.subtract( userService.findAll( QUser.user.userDirectory.eq( ldapUserDirectory ) ), users )
.forEach( user -> {
user.getGroups().clear();
userService.save( user );
try {
eventPublisher.publishEvent( new LdapEntityDeletedEvent<>( user ) );
userService.delete( user.getId() );
}
catch ( Exception e ) {
LOG.error(
"Could not delete user '{}', maybe you have entities referencing this user?",
e );
}
} );
}
}
private void removeDeletedGroups( LdapUserDirectory ldapUserDirectory, Map groups ) {
if ( ldapModuleSettings.isDeleteUsersAndGroupsWhenDeletedFromLdapSource() ) {
CollectionUtils.subtract( groupService.findAll( QGroup.group.userDirectory.eq( ldapUserDirectory ) ),
groups.values() ).forEach( group -> {
userService.findAll( QUser.user.groups.contains( group ) ).forEach( user -> {
user.getGroups().remove( group );
userService.save( user );
} );
try {
eventPublisher.publishEvent( new LdapEntityDeletedEvent<>( group ) );
groupService.delete( group.getId() );
}
catch ( Exception e ) {
LOG.error( "Could not delete group '{}', maybe you have entities referencing this group?", e );
}
} );
}
}
private CloseableAuthentication authenticateAsConnector( LdapConnector connector ) {
if ( connector.getSynchronizationPrincipalName() != null ) {
return securityPrincipalService.getPrincipalByName( connector.getSynchronizationPrincipalName() )
.map( principal -> new CloseableAuthentication( new SecurityPrincipalAuthenticationToken( principal ) ) )
.orElse( null );
}
return null;
}
Set performUserSynchronization( LdapUserDirectory userDirectory ) {
LdapConnector connector = userDirectory.getLdapConnector();
Set itemsInLdap = new HashSet<>();
if ( connector != null ) {
LdapConnectorSettings ldapConnectorSettings = ldapConnectorSettingsService.getProperties(
connector.getId() );
QUser query = QUser.user;
ldapSearchService.performSearch( connector, connector.getAdditionalUserDn(),
ldapSearchService.getUserFilter( ldapConnectorSettings ), ctx -> {
DirContextAdapter adapter = (DirContextAdapter) ctx;
String name = adapter.getStringAttribute( ldapConnectorSettings.getUsername() );
if ( StringUtils.isNotBlank( name ) ) {
Collection users = userService.findAll( query.username.equalsIgnoreCase( name ) );
if ( users.isEmpty() ) {
User user = new User();
user.setUsername( name );
user.setEmail( adapter.getStringAttribute( ldapConnectorSettings.getUserEmail() ) );
user.setEmailConfirmed( true );
user.setFirstName( adapter.getStringAttribute( ldapConnectorSettings.getFirstName() ) );
user.setLastName( adapter.getStringAttribute( ldapConnectorSettings.getLastName() ) );
user.setDisplayName(
adapter.getStringAttribute( ldapConnectorSettings.getDiplayName() ) );
user.setPassword( UUID.randomUUID().toString() );
user.setUserDirectory( userDirectory );
setRestrictions( user, ldapConnectorSettings, adapter );
userService.save( user );
itemsInLdap.add( user );
ldapPropertiesService.saveLdapProperties( user, adapter );
}
else {
users.forEach( user -> {
user.setEmail( adapter.getStringAttribute(
ldapConnectorSettings.getUserEmail() ) );
user.setFirstName( adapter.getStringAttribute(
ldapConnectorSettings.getFirstName() ) );
user.setLastName( adapter.getStringAttribute(
ldapConnectorSettings.getLastName() ) );
user.setDisplayName( adapter.getStringAttribute(
ldapConnectorSettings.getDiplayName() ) );
user.setDeleted( false );
setRestrictions( user, ldapConnectorSettings, adapter );
userService.save( user );
itemsInLdap.add( user );
ldapPropertiesService.saveLdapProperties( user, adapter );
} );
}
}
return adapter.getStringAttribute( ldapConnectorSettings.getUsername() );
} );
// Mark users as deleted that are not in AD anymore
Collection deletedUsers = userService.findAll(
query.notIn( itemsInLdap ).and( query.userDirectory.eq( userDirectory ) ) );
deletedUsers.forEach( user -> {
user.setDeleted( true );
userService.save( user );
} );
}
return itemsInLdap;
}
private void synchronizeUserMemberships( LdapUserDirectory userDirectory,
Set users,
Map groups ) {
LdapConnector connector = userDirectory.getLdapConnector();
if ( connector != null ) {
LdapConnectorSettings ldapConnectorSettings = ldapConnectorSettingsService.getProperties(
connector.getId() );
ldapSearchService.performSearch( connector, connector.getAdditionalUserDn(),
ldapSearchService.getUserFilter( ldapConnectorSettings ), ctx -> {
DirContextAdapter adapter = (DirContextAdapter) ctx;
String name = adapter.getStringAttribute( ldapConnectorSettings.getUsername() );
String[] memberOf = adapter.getStringAttributes( ldapConnectorSettings.getUserMemberOf() );
Set groupsForUser = new HashSet<>();
if ( memberOf != null ) {
for ( String member : memberOf ) {
groups.entrySet().stream().filter(
i -> StringUtils.equalsIgnoreCase( i.getKey(), member ) ).findFirst().ifPresent(
g -> groupsForUser.add( g.getValue() ) );
}
}
if ( StringUtils.isNotBlank( name ) ) {
users.stream().filter( i -> StringUtils.equalsIgnoreCase( i.getUsername(), name ) )
.findFirst().ifPresent( user -> {
user.setGroups( groupsForUser );
userService.save( user );
eventPublisher.publishEvent( new LdapEntityProcessedEvent<>( user, true, adapter ) );
}
);
}
return adapter.getStringAttribute( ldapConnectorSettings.getUsername() );
} );
}
}
private void setRestrictions( User user, LdapConnectorSettings ldapConnectorSettings, DirContextAdapter adapter ) {
String userAccountControlProperty = adapter.getStringAttribute( ldapConnectorSettings.getUserAccountControl() );
if ( StringUtils.isNumeric( userAccountControlProperty ) ) {
int userAccountControl = Integer.parseInt( userAccountControlProperty );
// For codes see: https://support.microsoft.com/en-us/kb/305144
if ( ( userAccountControl & 2 ) == 2 ) {
user.getRestrictions().add( UserRestriction.DISABLED );
}
if ( ( userAccountControl & 16 ) == 16 ) {
user.getRestrictions().add( UserRestriction.LOCKED );
}
if ( ( userAccountControl & 8388608 ) == 8388608 ) {
user.getRestrictions().add( UserRestriction.EXPIRED );
}
}
}
private Map performGroupSynchronization( LdapUserDirectory userDirectory ) {
LdapConnector connector = userDirectory.getLdapConnector();
Map itemsInLdap = new HashMap<>();
if ( connector != null ) {
LdapConnectorSettings ldapConnectorSettings = ldapConnectorSettingsService.getProperties(
connector.getId() );
QGroup query = QGroup.group;
ldapSearchService.performSearch( connector, connector.getAdditionalGroupDn(),
ldapSearchService.getGroupFilter( ldapConnectorSettings ), ctx -> {
DirContextAdapter adapter = (DirContextAdapter) ctx;
String name = adapter.getStringAttribute( ldapConnectorSettings.getGroupName() );
if ( StringUtils.isNotBlank( name ) ) {
Collection groups = groupService.findAll( query.name.equalsIgnoreCase( name ) );
if ( groups.isEmpty() ) {
Group group = new Group();
group.setName( adapter.getStringAttribute( ldapConnectorSettings.getGroupName() ) );
group.setUserDirectory( userDirectory );
groupService.save( group );
ldapPropertiesService.saveLdapProperties( group, adapter );
eventPublisher.publishEvent( new LdapEntityProcessedEvent<>( group, false, adapter ) );
itemsInLdap.putIfAbsent( adapter.getNameInNamespace(), group );
}
else {
Group group = groups.iterator().next();
eventPublisher.publishEvent( new LdapEntityProcessedEvent<>( group, true, adapter ) );
itemsInLdap.putIfAbsent( adapter.getNameInNamespace(), group );
}
}
return adapter.getStringAttribute( ldapConnectorSettings.getUsername() );
} );
}
return itemsInLdap;
}
}
