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The UnboundID LDAP SDK for Java is a fast, comprehensive, and easy-to-use Java API for communicating with LDAP directory servers and performing related tasks like reading and writing LDIF, encoding and decoding data using base64 and ASN.1 BER, and performing secure communication. This package contains the Standard Edition of the LDAP SDK, which is a complete, general-purpose library for communicating with LDAPv3 directory servers.

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/*
 * Copyright 2007-2023 Ping Identity Corporation
 * All Rights Reserved.
 */
/*
 * Copyright 2007-2023 Ping Identity Corporation
 *
 * 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.
 */
/*
 * Copyright (C) 2007-2023 Ping Identity Corporation
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License (GPLv2 only)
 * or the terms of the GNU Lesser General Public License (LGPLv2.1 only)
 * as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, see .
 */
package com.unboundid.ldap.sdk;



import java.util.ArrayList;
import java.util.List;

import com.unboundid.asn1.ASN1OctetString;
import com.unboundid.util.NotMutable;
import com.unboundid.util.NotNull;
import com.unboundid.util.Nullable;
import com.unboundid.util.StaticUtils;
import com.unboundid.util.ThreadSafety;
import com.unboundid.util.ThreadSafetyLevel;



/**
 * This class provides a SASL EXTERNAL bind request implementation as described
 * in RFC 4422.  The
 * EXTERNAL mechanism is used to authenticate using information that is
 * available outside of the LDAP layer (e.g., a certificate presented by the
 * client during SSL or StartTLS negotiation).
 * 

*

Example

* The following example demonstrates the process for performing an EXTERNAL * bind against a directory server: *
 * EXTERNALBindRequest bindRequest = new EXTERNALBindRequest("");
 * BindResult bindResult;
 * try
 * {
 *   bindResult = connection.bind(bindRequest);
 *   // If we get here, then the bind was successful.
 * }
 * catch (LDAPException le)
 * {
 *   // The bind failed for some reason.
 *   bindResult = new BindResult(le.toLDAPResult());
 *   ResultCode resultCode = le.getResultCode();
 *   String errorMessageFromServer = le.getDiagnosticMessage();
 * }
 * 
*/ @NotMutable() @ThreadSafety(level=ThreadSafetyLevel.NOT_THREADSAFE) public final class EXTERNALBindRequest extends SASLBindRequest { /** * The name for the EXTERNAL SASL mechanism. */ @NotNull public static final String EXTERNAL_MECHANISM_NAME = "EXTERNAL"; /** * The serial version UID for this serializable class. */ private static final long serialVersionUID = 7520760039662616663L; // The message ID from the last LDAP message sent from this request. private int messageID = -1; // The authorization ID to send to the server in the bind request. It may be // null, empty, or non-empty. @Nullable private final String authzID; /** * Creates a new SASL EXTERNAL bind request with no authorization ID and no * controls. */ public EXTERNALBindRequest() { this(null, StaticUtils.NO_CONTROLS); } /** * Creates a new SASL EXTERNAL bind request with the specified authorization * ID and no controls. * * @param authzID The authorization ID to use for the bind request. It may * be {@code null} if the client should not send any * authorization ID at all (which may be required by some * servers). It may be an empty string if the server should * determine the authorization identity from what it knows * about the client (e.g., a client certificate). It may be * a non-empty string if the authorization identity should * be different from the authentication identity. */ public EXTERNALBindRequest(@Nullable final String authzID) { this(authzID, StaticUtils.NO_CONTROLS); } /** * Creates a new SASL EXTERNAL bind request with the provided set of controls. * * @param controls The set of controls to include in this SASL EXTERNAL * bind request. */ public EXTERNALBindRequest(@Nullable final Control... controls) { this(null, controls); } /** * Creates a new SASL EXTERNAL bind request with the provided set of controls. * * * @param authzID The authorization ID to use for the bind request. It may * be {@code null} if the client should not send any * authorization ID at all (which may be required by some * servers). It may be an empty string if the server should * determine the authorization identity from what it knows * about the client (e.g., a client certificate). It may be * a non-empty string if the authorization identity should * be different from the authentication identity. * @param controls The set of controls to include in this SASL EXTERNAL * bind request. */ public EXTERNALBindRequest(@Nullable final String authzID, @Nullable final Control... controls) { super(controls); this.authzID = authzID; } /** * Retrieves the authorization ID that should be included in the bind request, * if any. * * @return The authorization ID that should be included in the bind request, * or {@code null} if the bind request should be sent without an * authorization ID (which is a form that some servers require). It * may be an empty string if the authorization identity should be the * same as the authentication identity and should be determined from * what the server already knows about the client. */ @Nullable() public String getAuthorizationID() { return authzID; } /** * {@inheritDoc} */ @Override() @NotNull() public String getSASLMechanismName() { return EXTERNAL_MECHANISM_NAME; } /** * Sends this bind request to the target server over the provided connection * and returns the corresponding response. * * @param connection The connection to use to send this bind request to the * server and read the associated response. * @param depth The current referral depth for this request. It should * always be one for the initial request, and should only * be incremented when following referrals. * * @return The bind response read from the server. * * @throws LDAPException If a problem occurs while sending the request or * reading the response. */ @Override() @NotNull() protected BindResult process(@NotNull final LDAPConnection connection, final int depth) throws LDAPException { setReferralDepth(depth); // Create the LDAP message. messageID = connection.nextMessageID(); final ASN1OctetString creds; if (authzID == null) { creds = null; } else { creds = new ASN1OctetString(authzID); } return sendBindRequest(connection, "", creds, getControls(), getResponseTimeoutMillis(connection)); } /** * {@inheritDoc} */ @Override() @NotNull() public EXTERNALBindRequest getRebindRequest(@NotNull final String host, final int port) { return new EXTERNALBindRequest(authzID, getControls()); } /** * {@inheritDoc} */ @Override() public int getLastMessageID() { return messageID; } /** * {@inheritDoc} */ @Override() @NotNull() public EXTERNALBindRequest duplicate() { return duplicate(getControls()); } /** * {@inheritDoc} */ @Override() @NotNull() public EXTERNALBindRequest duplicate(@Nullable final Control[] controls) { final EXTERNALBindRequest bindRequest = new EXTERNALBindRequest(authzID, controls); bindRequest.setResponseTimeoutMillis(getResponseTimeoutMillis(null)); bindRequest.setIntermediateResponseListener( getIntermediateResponseListener()); bindRequest.setReferralDepth(getReferralDepth()); bindRequest.setReferralConnector(getReferralConnectorInternal()); return bindRequest; } /** * {@inheritDoc} */ @Override() public void toString(@NotNull final StringBuilder buffer) { buffer.append("EXTERNALBindRequest("); boolean added = false; if (authzID != null) { buffer.append("authzID='"); buffer.append(authzID); buffer.append('\''); added = true; } final Control[] controls = getControls(); if (controls.length > 0) { if (added) { buffer.append(", "); } buffer.append("controls={"); for (int i=0; i < controls.length; i++) { if (i > 0) { buffer.append(", "); } buffer.append(controls[i]); } buffer.append('}'); } buffer.append(')'); } /** * {@inheritDoc} */ @Override() public void toCode(@NotNull final List lineList, @NotNull final String requestID, final int indentSpaces, final boolean includeProcessing) { // Create the request variable. final ArrayList constructorArgs = new ArrayList<>(2); if (authzID != null) { constructorArgs.add(ToCodeArgHelper.createString(authzID, "Authorization ID")); } final Control[] controls = getControls(); if (controls.length > 0) { constructorArgs.add(ToCodeArgHelper.createControlArray(controls, "Bind Controls")); } ToCodeHelper.generateMethodCall(lineList, indentSpaces, "EXTERNALBindRequest", requestID + "Request", "new EXTERNALBindRequest", constructorArgs); // Add lines for processing the request and obtaining the result. if (includeProcessing) { // Generate a string with the appropriate indent. final StringBuilder buffer = new StringBuilder(); for (int i=0; i < indentSpaces; i++) { buffer.append(' '); } final String indent = buffer.toString(); lineList.add(""); lineList.add(indent + "try"); lineList.add(indent + '{'); lineList.add(indent + " BindResult " + requestID + "Result = connection.bind(" + requestID + "Request);"); lineList.add(indent + " // The bind was processed successfully."); lineList.add(indent + '}'); lineList.add(indent + "catch (LDAPException e)"); lineList.add(indent + '{'); lineList.add(indent + " // The bind failed. Maybe the following will " + "help explain why."); lineList.add(indent + " // Note that the connection is now likely in " + "an unauthenticated state."); lineList.add(indent + " ResultCode resultCode = e.getResultCode();"); lineList.add(indent + " String message = e.getMessage();"); lineList.add(indent + " String matchedDN = e.getMatchedDN();"); lineList.add(indent + " String[] referralURLs = e.getReferralURLs();"); lineList.add(indent + " Control[] responseControls = " + "e.getResponseControls();"); lineList.add(indent + '}'); } } }




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