/
LdapNetworkConnection.java
5340 lines (4389 loc) · 160 KB
/
LdapNetworkConnection.java
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/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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 org.apache.directory.ldap.client.api;
import static org.apache.directory.api.ldap.model.message.ResultCodeEnum.processResponse;
import java.io.File;
import java.io.IOException;
import java.io.OutputStreamWriter;
import java.io.Writer;
import java.net.ConnectException;
import java.net.InetSocketAddress;
import java.net.SocketAddress;
import java.nio.channels.UnresolvedAddressException;
import java.nio.charset.Charset;
import java.nio.file.Files;
import java.nio.file.Paths;
import java.security.PrivilegedExceptionAction;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.concurrent.CompletableFuture;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.TimeoutException;
import java.util.concurrent.atomic.AtomicBoolean;
import java.util.concurrent.locks.ReentrantLock;
import javax.net.ssl.SSLContext;
import javax.net.ssl.TrustManager;
import javax.security.auth.Subject;
import javax.security.auth.login.Configuration;
import javax.security.auth.login.LoginContext;
import javax.security.sasl.Sasl;
import javax.security.sasl.SaslClient;
import org.apache.directory.api.asn1.DecoderException;
import org.apache.directory.api.asn1.util.Oid;
import org.apache.directory.api.i18n.I18n;
import org.apache.directory.api.ldap.codec.api.BinaryAttributeDetector;
import org.apache.directory.api.ldap.codec.api.DefaultConfigurableBinaryAttributeDetector;
import org.apache.directory.api.ldap.codec.api.ExtendedOperationFactory;
import org.apache.directory.api.ldap.codec.api.LdapApiService;
import org.apache.directory.api.ldap.codec.api.LdapApiServiceFactory;
import org.apache.directory.api.ldap.codec.api.LdapDecoder;
import org.apache.directory.api.ldap.codec.api.LdapMessageContainer;
import org.apache.directory.api.ldap.codec.api.MessageEncoderException;
import org.apache.directory.api.ldap.codec.api.SchemaBinaryAttributeDetector;
import org.apache.directory.api.ldap.extras.controls.ad.TreeDelete;
import org.apache.directory.api.ldap.extras.controls.ad.TreeDeleteImpl;
import org.apache.directory.api.ldap.extras.extended.startTls.StartTlsRequestImpl;
import org.apache.directory.api.ldap.model.constants.LdapConstants;
import org.apache.directory.api.ldap.model.constants.SchemaConstants;
import org.apache.directory.api.ldap.model.cursor.Cursor;
import org.apache.directory.api.ldap.model.cursor.CursorException;
import org.apache.directory.api.ldap.model.cursor.EntryCursor;
import org.apache.directory.api.ldap.model.cursor.SearchCursor;
import org.apache.directory.api.ldap.model.entry.Attribute;
import org.apache.directory.api.ldap.model.entry.DefaultEntry;
import org.apache.directory.api.ldap.model.entry.Entry;
import org.apache.directory.api.ldap.model.entry.Modification;
import org.apache.directory.api.ldap.model.entry.ModificationOperation;
import org.apache.directory.api.ldap.model.entry.Value;
import org.apache.directory.api.ldap.model.exception.LdapAuthenticationException;
import org.apache.directory.api.ldap.model.exception.LdapException;
import org.apache.directory.api.ldap.model.exception.LdapInvalidDnException;
import org.apache.directory.api.ldap.model.exception.LdapNoPermissionException;
import org.apache.directory.api.ldap.model.exception.LdapNoSuchObjectException;
import org.apache.directory.api.ldap.model.exception.LdapOperationException;
import org.apache.directory.api.ldap.model.exception.LdapOtherException;
import org.apache.directory.api.ldap.model.exception.LdapTlsHandshakeException;
import org.apache.directory.api.ldap.model.message.AbandonRequest;
import org.apache.directory.api.ldap.model.message.AbandonRequestImpl;
import org.apache.directory.api.ldap.model.message.AddRequest;
import org.apache.directory.api.ldap.model.message.AddRequestImpl;
import org.apache.directory.api.ldap.model.message.AddResponse;
import org.apache.directory.api.ldap.model.message.AliasDerefMode;
import org.apache.directory.api.ldap.model.message.BindRequest;
import org.apache.directory.api.ldap.model.message.BindRequestImpl;
import org.apache.directory.api.ldap.model.message.BindResponse;
import org.apache.directory.api.ldap.model.message.CompareRequest;
import org.apache.directory.api.ldap.model.message.CompareRequestImpl;
import org.apache.directory.api.ldap.model.message.CompareResponse;
import org.apache.directory.api.ldap.model.message.Control;
import org.apache.directory.api.ldap.model.message.DeleteRequest;
import org.apache.directory.api.ldap.model.message.DeleteRequestImpl;
import org.apache.directory.api.ldap.model.message.DeleteResponse;
import org.apache.directory.api.ldap.model.message.ExtendedRequest;
import org.apache.directory.api.ldap.model.message.ExtendedResponse;
import org.apache.directory.api.ldap.model.message.IntermediateResponse;
import org.apache.directory.api.ldap.model.message.LdapResult;
import org.apache.directory.api.ldap.model.message.Message;
import org.apache.directory.api.ldap.model.message.ModifyDnRequest;
import org.apache.directory.api.ldap.model.message.ModifyDnRequestImpl;
import org.apache.directory.api.ldap.model.message.ModifyDnResponse;
import org.apache.directory.api.ldap.model.message.ModifyRequest;
import org.apache.directory.api.ldap.model.message.ModifyRequestImpl;
import org.apache.directory.api.ldap.model.message.ModifyResponse;
import org.apache.directory.api.ldap.model.message.OpaqueExtendedRequest;
import org.apache.directory.api.ldap.model.message.OpaqueExtendedResponse;
import org.apache.directory.api.ldap.model.message.Request;
import org.apache.directory.api.ldap.model.message.Response;
import org.apache.directory.api.ldap.model.message.ResultCodeEnum;
import org.apache.directory.api.ldap.model.message.SearchRequest;
import org.apache.directory.api.ldap.model.message.SearchRequestImpl;
import org.apache.directory.api.ldap.model.message.SearchResultDone;
import org.apache.directory.api.ldap.model.message.SearchResultEntry;
import org.apache.directory.api.ldap.model.message.SearchResultReference;
import org.apache.directory.api.ldap.model.message.SearchScope;
import org.apache.directory.api.ldap.model.message.UnbindRequest;
import org.apache.directory.api.ldap.model.message.UnbindRequestImpl;
import org.apache.directory.api.ldap.model.message.controls.ManageDsaITImpl;
import org.apache.directory.api.ldap.model.message.controls.OpaqueControl;
import org.apache.directory.api.ldap.model.message.extended.AddNoDResponse;
import org.apache.directory.api.ldap.model.message.extended.BindNoDResponse;
import org.apache.directory.api.ldap.model.message.extended.CompareNoDResponse;
import org.apache.directory.api.ldap.model.message.extended.DeleteNoDResponse;
import org.apache.directory.api.ldap.model.message.extended.ExtendedNoDResponse;
import org.apache.directory.api.ldap.model.message.extended.ModifyDnNoDResponse;
import org.apache.directory.api.ldap.model.message.extended.ModifyNoDResponse;
import org.apache.directory.api.ldap.model.message.extended.NoticeOfDisconnect;
import org.apache.directory.api.ldap.model.message.extended.SearchNoDResponse;
import org.apache.directory.api.ldap.model.name.Dn;
import org.apache.directory.api.ldap.model.name.Rdn;
import org.apache.directory.api.ldap.model.schema.AttributeType;
import org.apache.directory.api.ldap.model.schema.ObjectClass;
import org.apache.directory.api.ldap.model.schema.SchemaManager;
import org.apache.directory.api.ldap.model.schema.parsers.OpenLdapSchemaParser;
import org.apache.directory.api.ldap.model.schema.registries.Registries;
import org.apache.directory.api.ldap.model.schema.registries.SchemaLoader;
import org.apache.directory.api.ldap.schema.manager.impl.DefaultSchemaManager;
import org.apache.directory.api.util.Network;
import org.apache.directory.api.util.StringConstants;
import org.apache.directory.api.util.Strings;
import org.apache.directory.ldap.client.api.callback.SaslCallbackHandler;
import org.apache.directory.ldap.client.api.exception.InvalidConnectionException;
import org.apache.directory.ldap.client.api.exception.LdapConnectionTimeOutException;
import org.apache.directory.ldap.client.api.future.AddFuture;
import org.apache.directory.ldap.client.api.future.BindFuture;
import org.apache.directory.ldap.client.api.future.CompareFuture;
import org.apache.directory.ldap.client.api.future.DeleteFuture;
import org.apache.directory.ldap.client.api.future.ExtendedFuture;
import org.apache.directory.ldap.client.api.future.HandshakeFuture;
import org.apache.directory.ldap.client.api.future.ModifyDnFuture;
import org.apache.directory.ldap.client.api.future.ModifyFuture;
import org.apache.directory.ldap.client.api.future.ResponseFuture;
import org.apache.directory.ldap.client.api.future.SearchFuture;
import org.apache.mina.core.filterchain.IoFilter;
import org.apache.mina.core.future.CloseFuture;
import org.apache.mina.core.future.ConnectFuture;
import org.apache.mina.core.future.WriteFuture;
import org.apache.mina.core.service.IoConnector;
import org.apache.mina.core.session.IoSession;
import org.apache.mina.filter.FilterEvent;
import org.apache.mina.filter.codec.ProtocolCodecFilter;
import org.apache.mina.filter.codec.ProtocolEncoderException;
import org.apache.mina.filter.ssl.SslEvent;
import org.apache.mina.filter.ssl.SslFilter;
import org.apache.mina.transport.socket.SocketSessionConfig;
import org.apache.mina.transport.socket.nio.NioSocketConnector;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* This class is the base for every operations sent or received to and
* from a LDAP server.
*
* A connection instance is necessary to send requests to the server. The connection
* is valid until either the client closes it, the server closes it or the
* client does an unbind.
*
* @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
*/
public class LdapNetworkConnection extends AbstractLdapConnection implements LdapAsyncConnection
{
/** logger for reporting errors that might not be handled properly upstream */
private static final Logger LOG = LoggerFactory.getLogger( LdapNetworkConnection.class );
/** The timeout used for response we are waiting for */
private long timeout = LdapConnectionConfig.DEFAULT_TIMEOUT;
/** configuration object for the connection */
private LdapConnectionConfig config;
/** The Socket configuration */
private SocketSessionConfig socketSessionConfig;
/** The connector open with the remote server */
private IoConnector connector;
/** A mutex used to avoid a double close of the connector */
private ReentrantLock connectorMutex = new ReentrantLock();
/**
* The created session, created when we open a connection with
* the Ldap server.
*/
private IoSession ioSession;
/** a map to hold the ResponseFutures for all operations */
private Map<Integer, ResponseFuture<? extends Response>> futureMap = new ConcurrentHashMap<>();
/** list of controls supported by the server */
private List<String> supportedControls;
/** The ROOT DSE entry */
private Entry rootDse;
/** A flag indicating that the BindRequest has been issued and successfully authenticated the user */
private AtomicBoolean authenticated = new AtomicBoolean( false );
/** a list of listeners interested in getting notified when the
* connection's session gets closed cause of network issues
*/
private List<ConnectionClosedEventListener> conCloseListeners;
/** The Ldap codec protocol filter */
private IoFilter ldapProtocolFilter = new ProtocolCodecFilter( codec.getProtocolCodecFactory() );
/** the SslFilter key */
private static final String SSL_FILTER_KEY = "sslFilter";
/** The exception stored in the session if we've got one */
private static final String EXCEPTION_KEY = "sessionException";
/** The krb5 configuration property */
private static final String KRB5_CONF = "java.security.krb5.conf";
/** A future used to block any action until the handshake is completed */
private HandshakeFuture handshakeFuture;
/** A future used to wait for a connection to be closed */
private CompletableFuture<Integer> connectionCloseFuture = new CompletableFuture<>();
// ~~~~~~~~~~~~~~~~~ common error messages ~~~~~~~~~~~~~~~~~~~~~~~~~~
static final String TIME_OUT_ERROR = I18n.err( I18n.ERR_04170_TIMEOUT_OCCURED );
static final String NO_RESPONSE_ERROR = I18n.err( I18n.ERR_04169_RESPONSE_QUEUE_EMPTIED );
//------------------------- The constructors --------------------------//
/**
* Create a new instance of a LdapConnection on localhost,
* port 389.
*/
public LdapNetworkConnection()
{
this( null, -1, false );
}
/**
*
* Creates a new instance of LdapConnection with the given connection configuration.
*
* @param config the configuration of the LdapConnection
*/
public LdapNetworkConnection( LdapConnectionConfig config )
{
this( config, LdapApiServiceFactory.getSingleton() );
}
/**
* Creates a new LdapNetworkConnection instance
*
* @param config The configuration to use
* @param ldapApiService The LDAP API Service to use
*/
public LdapNetworkConnection( LdapConnectionConfig config, LdapApiService ldapApiService )
{
super( ldapApiService );
this.config = config;
if ( config.getBinaryAttributeDetector() == null )
{
config.setBinaryAttributeDetector( new DefaultConfigurableBinaryAttributeDetector() );
}
this.timeout = config.getTimeout();
}
/**
* Create a new instance of a LdapConnection on localhost,
* port 389 if the SSL flag is off, or 636 otherwise.
*
* @param useSsl A flag to tell if it's a SSL connection or not.
*/
public LdapNetworkConnection( boolean useSsl )
{
this( null, -1, useSsl );
}
/**
* Creates a new LdapNetworkConnection instance
*
* @param useSsl If we are going to create a secure connection or not
* @param ldapApiService The LDAP API Service to use
*/
public LdapNetworkConnection( boolean useSsl, LdapApiService ldapApiService )
{
this( null, -1, useSsl, ldapApiService );
}
/**
* Create a new instance of a LdapConnection on a given
* server, using the default port (389).
*
* @param server The server we want to be connected to. If null or empty,
* we will default to LocalHost.
*/
public LdapNetworkConnection( String server )
{
this( server, -1, false );
}
/**
* Creates a new LdapNetworkConnection instance
*
* @param server The server we want to be connected to. If null or empty,
* we will default to LocalHost.
* @param ldapApiService The LDAP API Service to use
*/
public LdapNetworkConnection( String server, LdapApiService ldapApiService )
{
this( server, -1, false, ldapApiService );
}
/**
* Create a new instance of a LdapConnection on a given
* server, using the default port (389) if the SSL flag
* is off, or 636 otherwise.
*
* @param server The server we want to be connected to. If null or empty,
* we will default to LocalHost.
* @param useSsl A flag to tell if it's a SSL connection or not.
*/
public LdapNetworkConnection( String server, boolean useSsl )
{
this( server, -1, useSsl );
}
/**
* Creates a new LdapNetworkConnection instance
*
* @param server The server we want to be connected to. If null or empty,
* we will default to LocalHost.
* @param useSsl A flag to tell if it's a SSL connection or not.
* @param ldapApiService The LDAP API Service to use
*/
public LdapNetworkConnection( String server, boolean useSsl, LdapApiService ldapApiService )
{
this( server, -1, useSsl, ldapApiService );
}
/**
* Create a new instance of a LdapConnection on a
* given server and a given port. We don't use ssl.
*
* @param server The server we want to be connected to
* @param port The port the server is listening to
*/
public LdapNetworkConnection( String server, int port )
{
this( server, port, false );
}
/**
* Create a new instance of a LdapConnection on a
* given server and a given port. We don't use ssl.
*
* @param server The server we want to be connected to. If null or empty,
* we will default to LocalHost.
* @param port The port the server is listening on
* @param ldapApiService The LDAP API Service to use
*/
public LdapNetworkConnection( String server, int port, LdapApiService ldapApiService )
{
this( server, port, false, ldapApiService );
}
/**
* Create a new instance of a LdapConnection on a given
* server, and a give port. We set the SSL flag accordingly
* to the last parameter.
*
* @param server The server we want to be connected to. If null or empty,
* we will default to LocalHost.
* @param port The port the server is listening to
* @param useSsl A flag to tell if it's a SSL connection or not.
*/
public LdapNetworkConnection( String server, int port, boolean useSsl )
{
this( buildConfig( server, port, useSsl ) );
}
/**
* Create a new instance of a LdapConnection on a given
* server, and a give port. This SSL connection will use the provided
* TrustManagers
*
* @param server The server we want to be connected to. If null or empty,
* we will default to LocalHost.
* @param port The port the server is listening to
* @param trustManagers The TrustManager to use
*/
public LdapNetworkConnection( String server, int port, TrustManager... trustManagers )
{
this( buildConfig( server, port, true ) );
config.setTrustManagers( trustManagers );
}
/**
* Create a new instance of a LdapConnection on a
* given server and a given port. We don't use ssl.
*
* @param server The server we want to be connected to. If null or empty,
* we will default to LocalHost.
* @param port The port the server is listening on
* @param useSsl A flag to tell if it's a SSL connection or not.
* @param ldapApiService The LDAP API Service to use
*/
public LdapNetworkConnection( String server, int port, boolean useSsl, LdapApiService ldapApiService )
{
this( buildConfig( server, port, useSsl ), ldapApiService );
}
private static LdapConnectionConfig buildConfig( String server, int port, boolean useSsl )
{
LdapConnectionConfig config = new LdapConnectionConfig();
config.setUseSsl( useSsl );
if ( port != -1 )
{
config.setLdapPort( port );
}
else
{
if ( useSsl )
{
config.setLdapPort( config.getDefaultLdapsPort() );
}
else
{
config.setLdapPort( config.getDefaultLdapPort() );
}
}
// Default to localhost if null
if ( Strings.isEmpty( server ) )
{
config.setLdapHost( Network.LOOPBACK_HOSTNAME );
}
else
{
config.setLdapHost( server );
}
config.setBinaryAttributeDetector( new DefaultConfigurableBinaryAttributeDetector() );
return config;
}
/**
* Create the connector
*
* @throws LdapException If the connector can't be created
*/
private void createConnector() throws LdapException
{
// Use only one thread inside the connector
connector = new NioSocketConnector( 1 );
if ( socketSessionConfig != null )
{
( ( SocketSessionConfig ) connector.getSessionConfig() ).setAll( socketSessionConfig );
}
else
{
( ( SocketSessionConfig ) connector.getSessionConfig() ).setReuseAddress( true );
}
// Add the codec to the chain
connector.getFilterChain().addLast( "ldapCodec", ldapProtocolFilter );
// If we use SSL, we have to add the SslFilter to the chain
if ( config.isUseSsl() )
{
addSslFilter();
}
// Inject the protocolHandler
connector.setHandler( this );
}
//--------------------------- Helper methods ---------------------------//
/**
* {@inheritDoc}
*/
@Override
public boolean isConnected()
{
return ( ioSession != null ) && ioSession.isConnected() && !ioSession.isClosing();
}
/**
* {@inheritDoc}
*/
@Override
public boolean isAuthenticated()
{
return isConnected() && authenticated.get();
}
/**
* Tells if the connection is using a secured channel
*
* @return <tt>true</tt> if the session is using a secured channel
*/
public boolean isSecured()
{
return isConnected() && ioSession.isSecured();
}
/**
* {@inheritDoc}
*/
@Override
public Throwable exceptionCaught()
{
return ( Throwable ) ioSession.getAttribute( EXCEPTION_KEY );
}
/**
* Check that a session is valid, ie we can send requests to the
* server
*
* @throws InvalidConnectionException If the session is not valid
*/
private void checkSession() throws InvalidConnectionException
{
if ( ioSession == null )
{
throw new InvalidConnectionException( I18n.err( I18n.ERR_04104_NULL_CONNECTION_CANNOT_CONNECT ) );
}
if ( !isConnected() )
{
throw new InvalidConnectionException( I18n.err( I18n.ERR_04108_INVALID_CONNECTION ) );
}
}
private void addToFutureMap( int messageId, ResponseFuture<? extends Response> future )
{
if ( LOG.isDebugEnabled() )
{
LOG.debug( I18n.msg( I18n.MSG_04106_ADDING, messageId, future.getClass().getName() ) );
}
futureMap.put( messageId, future );
}
private ResponseFuture<? extends Response> getFromFutureMap( int messageId )
{
ResponseFuture<? extends Response> future = futureMap.remove( messageId );
if ( LOG.isDebugEnabled() && ( future != null ) )
{
LOG.debug( I18n.msg( I18n.MSG_04126_REMOVING, messageId, future.getClass().getName() ) );
}
return future;
}
private ResponseFuture<? extends Response> peekFromFutureMap( int messageId )
{
ResponseFuture<? extends Response> future = futureMap.get( messageId );
// future can be null if there was a abandon operation on that messageId
if ( LOG.isDebugEnabled() && ( future != null ) )
{
LOG.debug( I18n.msg( I18n.MSG_04119_GETTING, messageId, future.getClass().getName() ) );
}
return future;
}
/**
* Get the largest timeout from the search time limit and the connection
* timeout.
*
* @param connectionTimoutInMS Connection timeout
* @param searchTimeLimitInSeconds Search timeout
* @return The largest timeout
*/
public long getTimeout( long connectionTimoutInMS, int searchTimeLimitInSeconds )
{
if ( searchTimeLimitInSeconds < 0 )
{
return connectionTimoutInMS;
}
else if ( searchTimeLimitInSeconds == 0 )
{
if ( config.getTimeout() == 0 )
{
return Long.MAX_VALUE;
}
else
{
return config.getTimeout();
}
}
else
{
long searchTimeLimitInMS = searchTimeLimitInSeconds * 1000L;
return Math.max( searchTimeLimitInMS, connectionTimoutInMS );
}
}
/**
* Process the connect.
*
* @exception LdapException If we weren't able to connect
* @return A Future that can be used to check the status of the connection
*/
public ConnectFuture tryConnect() throws LdapException
{
// Build the connection address
SocketAddress address = new InetSocketAddress( config.getLdapHost(), config.getLdapPort() );
ConnectFuture connectionFuture = connector.connect( address );
boolean result = false;
// Wait until it's established
try
{
result = connectionFuture.await( timeout );
}
catch ( InterruptedException e )
{
connector.dispose();
connector = null;
if ( LOG.isDebugEnabled() )
{
LOG.debug( I18n.msg( I18n.MSG_04120_INTERRUPTED_WAITING_FOR_CONNECTION,
config.getLdapHost(),
config.getLdapPort() ), e );
}
throw new LdapOtherException( e.getMessage(), e );
}
if ( !result )
{
// It may be an exception, or a timeout
Throwable connectionException = connectionFuture.getException();
if ( ( connector != null ) && !connector.isDisposing() && !connector.isDisposed() )
{
connector.dispose();
}
connector = null;
if ( connectionException == null )
{
// This was a timeout
String message = I18n.msg( I18n.MSG_04177_CONNECTION_TIMEOUT, timeout );
if ( LOG.isDebugEnabled() )
{
LOG.debug( message );
}
throw new LdapConnectionTimeOutException( message );
}
else
{
if ( LOG.isDebugEnabled() )
{
if ( ( connectionException instanceof ConnectException )
|| ( connectionException instanceof UnresolvedAddressException ) )
{
// No need to wait
// We know that there was a permanent error such as "connection refused".
LOG.debug( I18n.msg( I18n.MSG_04144_CONNECTION_ERROR, connectionFuture.getException().getMessage() ) );
}
LOG.debug( I18n.msg( I18n.MSG_04120_INTERRUPTED_WAITING_FOR_CONNECTION,
config.getLdapHost(),
config.getLdapPort() ), connectionException );
}
throw new LdapOtherException( connectionException.getMessage(), connectionException );
}
}
return connectionFuture;
}
/**
* Close the connection and generate the appropriate exception
*
* @exception LdapException If we weren't able to close the connection
*/
private void close( ConnectFuture connectionFuture ) throws LdapException
{
// disposing connector if not connected
close();
Throwable e = connectionFuture.getException();
if ( e != null )
{
// Special case for UnresolvedAddressException
// (most of the time no message is associated with this exception)
if ( ( e instanceof UnresolvedAddressException ) && ( e.getMessage() == null ) )
{
throw new InvalidConnectionException( I18n.err( I18n.ERR_04121_CANNOT_RESOLVE_HOSTNAME, config.getLdapHost() ), e );
}
// Default case
throw new InvalidConnectionException( I18n.err( I18n.ERR_04110_CANNOT_CONNECT_TO_SERVER, e.getMessage() ), e );
}
// We didn't received anything : this is an error
if ( LOG.isErrorEnabled() )
{
LOG.error( I18n.err( I18n.ERR_04112_OP_FAILED_TIMEOUT, "Connect" ) );
}
throw new LdapException( TIME_OUT_ERROR );
}
/**
* Verify that the connection has been secured, otherwise throw a meaningful exception
*
* @exception LdapException If we weren't able to check that the connection is secured
*/
private void checkSecured( ConnectFuture connectionFuture ) throws LdapException
{
try
{
boolean isSecured = handshakeFuture.get( timeout, TimeUnit.MILLISECONDS );
if ( !isSecured )
{
// check for a specific cause
Throwable cause = connectionFuture.getException();
if ( cause == null && connectionFuture.getSession() != null )
{
cause = ( Throwable ) connectionFuture.getSession().getAttribute( EXCEPTION_KEY );
}
// Cancel the latch
connectionCloseFuture.complete( 0 );
// if there is no cause assume timeout
if ( cause == null )
{
throw new LdapException( TIME_OUT_ERROR );
}
throw new LdapTlsHandshakeException( I18n.err( I18n.ERR_04120_TLS_HANDSHAKE_ERROR ), cause );
}
}
catch ( Exception e )
{
if ( e instanceof LdapException )
{
throw ( LdapException ) e;
}
String msg = I18n.err( I18n.ERR_04122_SSL_CONTEXT_INIT_FAILURE );
LOG.error( msg, e );
throw new LdapException( msg, e );
}
}
/**
* Set a listener associated to the closeFuture
*
* @param connectionFuture A Future for which we want to set a listener
*/
private void setCloseListener( ConnectFuture connectionFuture )
{
// Get the close future for this session
CloseFuture closeFuture = connectionFuture.getSession().getCloseFuture();
closeFuture.addListener( future ->
{
// Process all the waiting operations and cancel them
if ( LOG.isDebugEnabled() )
{
LOG.debug( I18n.msg( I18n.MSG_04137_NOD_RECEIVED ) );
}
for ( ResponseFuture<?> responseFuture : futureMap.values() )
{
if ( LOG.isDebugEnabled() )
{
LOG.debug( I18n.msg( I18n.MSG_04137_NOD_RECEIVED ) );
}
responseFuture.cancel();
try
{
if ( responseFuture instanceof AddFuture )
{
( ( AddFuture ) responseFuture ).set( AddNoDResponse.PROTOCOLERROR );
}
else if ( responseFuture instanceof BindFuture )
{
( ( BindFuture ) responseFuture ).set( BindNoDResponse.PROTOCOLERROR );
}
else if ( responseFuture instanceof CompareFuture )
{
( ( CompareFuture ) responseFuture ).set( CompareNoDResponse.PROTOCOLERROR );
}
else if ( responseFuture instanceof DeleteFuture )
{
( ( DeleteFuture ) responseFuture ).set( DeleteNoDResponse.PROTOCOLERROR );
}
else if ( responseFuture instanceof ExtendedFuture )
{
( ( ExtendedFuture ) responseFuture ).set( ExtendedNoDResponse.PROTOCOLERROR );
}
else if ( responseFuture instanceof ModifyFuture )
{
( ( ModifyFuture ) responseFuture ).set( ModifyNoDResponse.PROTOCOLERROR );
}
else if ( responseFuture instanceof ModifyDnFuture )
{
( ( ModifyDnFuture ) responseFuture ).set( ModifyDnNoDResponse.PROTOCOLERROR );
}
else if ( responseFuture instanceof SearchFuture )
{
( ( SearchFuture ) responseFuture ).set( SearchNoDResponse.PROTOCOLERROR );
}
}
catch ( InterruptedException e )
{
LOG.error( I18n.err( I18n.ERR_04113_ERROR_PROCESSING_NOD, responseFuture ), e );
}
futureMap.remove( messageId.get() );
}
futureMap.clear();
} );
}
/**
* Set the BinaryDetector instance in the session
*/
private void setBinaryDetector()
{
@SuppressWarnings("unchecked")
LdapMessageContainer<? extends Message> container =
( LdapMessageContainer<? extends Message> ) ioSession
.getAttribute( LdapDecoder.MESSAGE_CONTAINER_ATTR );
if ( container != null )
{
if ( ( schemaManager != null ) && !( container.getBinaryAttributeDetector() instanceof SchemaBinaryAttributeDetector ) )
{
container.setBinaryAttributeDetector( new SchemaBinaryAttributeDetector( schemaManager ) );
}
}
else
{
BinaryAttributeDetector atDetector = new DefaultConfigurableBinaryAttributeDetector();
if ( schemaManager != null )
{
atDetector = new SchemaBinaryAttributeDetector( schemaManager );
}
ioSession.setAttribute( LdapDecoder.MESSAGE_CONTAINER_ATTR,
new LdapMessageContainer<Message>( codec, atDetector ) );
}
}
//-------------------------- The methods ---------------------------//
/**
* {@inheritDoc}
*/
@Override
public boolean connect() throws LdapException
{
if ( isConnected() )
{
// No need to connect if we already have a connected session
return true;
}
try
{
// Create the connector if needed
if ( connector == null )
{
createConnector();
}
// And create the connection future
ConnectFuture connectionFuture = tryConnect();
// Check if we are good to go
if ( !connectionFuture.isConnected() )
{
// Release the latch
connectionCloseFuture.cancel( true );
close( connectionFuture );
}
// Check if we are secured if requested
if ( config.isUseSsl() )
{
checkSecured( connectionFuture );
}
// Add a listener to close the session in the session.
setCloseListener( connectionFuture );
// Get back the session
ioSession = connectionFuture.getSession();
// Store the container into the session if we don't have one
setBinaryDetector();
// Initialize the MessageId
messageId.set( 0 );
connectionCloseFuture = new CompletableFuture<>();
// And return
return true;
}
catch ( Exception e )
{
if ( ( connector != null ) && !connector.isDisposing() && !connector.isDisposed() )
{
connector.dispose();
connector = null;
}