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/*
* Copyright 2016-2017 UnboundID Corp.
* All Rights Reserved.
*/
/*
* Copyright (C) 2016-2017 UnboundID Corp.
*
* 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.unboundidds.extensions;
import java.util.ArrayList;
import com.unboundid.asn1.ASN1Element;
import com.unboundid.asn1.ASN1OctetString;
import com.unboundid.asn1.ASN1Sequence;
import com.unboundid.ldap.sdk.Control;
import com.unboundid.ldap.sdk.ExtendedRequest;
import com.unboundid.ldap.sdk.LDAPConnection;
import com.unboundid.ldap.sdk.LDAPException;
import com.unboundid.ldap.sdk.ResultCode;
import com.unboundid.util.Debug;
import com.unboundid.util.NotMutable;
import com.unboundid.util.StaticUtils;
import com.unboundid.util.ThreadSafety;
import com.unboundid.util.ThreadSafetyLevel;
import com.unboundid.util.Validator;
import static com.unboundid.ldap.sdk.unboundidds.extensions.ExtOpMessages.*;
/**
* This class provides an implementation of an extended request that may be used
* to generate a shared secret for use in generating TOTP authentication codes
* (as per RFC 6238, for
* example, using the mechanism provided in the
* {@link com.unboundid.ldap.sdk.unboundidds.OneTimePassword} class), which can
* be used to authenticate to the server via the
* {@link com.unboundid.ldap.sdk.unboundidds.UnboundIDTOTPBindRequest}.
*
*
* NOTE: This class is part of the Commercial Edition of the UnboundID
* LDAP SDK for Java. It is not available for use in applications that
* include only the Standard Edition of the LDAP SDK, and is not supported for
* use in conjunction with non-UnboundID products.
*
*
* This request may be invoked in one of following ways:
*
*
*
* With a {@code null} authentication identity and a non-{@code null} static
* password. In this case, the authorization identity for the operation
* (typically the user as whom the underlying connection is authenticated,
* but possibly a different user if the request also includes a control like
* the proxied authorization or intermediate client request control that
* specifies and alternate authorization identity, or if the client
* authenticated with a SASL mechanism that included an alternate
* authorization identity) will be used as the authentication identity for
* this request, and the static password must be valid for that user. This
* will be treated as a user requesting a TOTP shared secret for their own
* account.
*
*
* With a non-{@code null} authentication identity (which may or may not
* match the authorization identity for the operation) and a
* non-{@code null} static password that is valid for the provided
* authentication identity. This will also be treated as a user requesting
* a TOTP shared secret for their own account.
*
*
* With a non-{@code null} authentication identity and a {@code null} static
* password. In this case, the authentication identity must not match the
* authorization identity for the operation, and the authorization identity
* must have the password-reset privilege. This will be treated as an
* administrator requesting a TOTP shared secret on behalf of a user and is
* recommended only for the case in which the identity of the user has been
* verified through some means other than a static password.
*
*
*
* If the request is processed successfully, the server will generate a TOTP
* shared secret for the user, will store it in the user's entry, and will
* return that secret back to the client via the
* {@link GenerateTOTPSharedSecretExtendedResult}.
*
* Note that this operation will not interfere with any other TOTP shared
* secrets that may already exist in the user's entry; the new shared secret
* will be merged with any existing shared secret values for the user. If a
* TOTP shared secret is no longer needed, the
* {@link RevokeTOTPSharedSecretExtendedRequest} may be used to remove it from
* the user's account.
*
* This extended request has an OID of 1.3.6.1.4.1.30221.2.6.56, and it must
* include a request value with the following encoding:
*
*
*/
@NotMutable()
@ThreadSafety(level=ThreadSafetyLevel.COMPLETELY_THREADSAFE)
public final class GenerateTOTPSharedSecretExtendedRequest
extends ExtendedRequest
{
/**
* The OID (1.3.6.1.4.1.30221.2.6.56) for the generate TOTP shared secret
* extended request.
*/
public static final String GENERATE_TOTP_SHARED_SECRET_REQUEST_OID =
"1.3.6.1.4.1.30221.2.6.56";
/**
* The BER type for the authentication ID element of the request value
* sequence.
*/
private static final byte TYPE_AUTHENTICATION_ID = (byte) 0x80;
/**
* The BER type for the static password element of the request value sequence.
*/
private static final byte TYPE_STATIC_PASSWORD = (byte) 0x81;
/**
* The serial version UID for this serializable class.
*/
private static final long serialVersionUID = -1617090986047944957L;
// The static password for the request.
private final ASN1OctetString staticPassword;
// The authentication ID for the request.
private final String authenticationID;
/**
* Creates a new generate TOTP shared secret extended request with the
* provided information.
*
* @param authenticationID The authentication ID to use to identify the user
* for whom to generate the TOTP shared secret. It
* should be a string in the form "dn:" followed by
* the DN of the target user, or "u:" followed by
* the username. It may be {@code null} if the TOTP
* shared secret is to be generated for the
* authorization identity for the operation, and
* only if the {@code staticPassword} is
* non-{@code null}).
* @param staticPassword The static password of the user for whom to
* generate the TOTP shared secret. It may be
* {@code null} only if the {@code authenticationID}
* is non-{@code null}, is different from the
* operation's authorization identity, and the
* operation's authorization identity has the
* password-reset privilege.
* @param controls The set of controls to include in the request.
* It may be {@code null} or empty if there should
* not be any request controls.
*/
public GenerateTOTPSharedSecretExtendedRequest(final String authenticationID,
final String staticPassword,
final Control... controls)
{
this(authenticationID, encodePassword(staticPassword), controls);
}
/**
* Creates a new generate TOTP shared secret extended request with the
* provided information.
*
* @param authenticationID The authentication ID to use to identify the user
* for whom to generate the TOTP shared secret. It
* should be a string in the form "dn:" followed by
* the DN of the target user, or "u:" followed by
* the username. It may be {@code null} if the TOTP
* shared secret is to be generated for the
* authorization identity for the operation, and
* only if the {@code staticPassword} is
* non-{@code null}).
* @param staticPassword The static password of the user for whom to
* generate the TOTP shared secret. It may be
* {@code null} only if the {@code authenticationID}
* is non-{@code null}, is different from the
* operation's authorization identity, and the
* operation's authorization identity has the
* password-reset privilege.
* @param controls The set of controls to include in the request.
* It may be {@code null} or empty if there should
* not be any request controls.
*/
public GenerateTOTPSharedSecretExtendedRequest(final String authenticationID,
final byte[] staticPassword,
final Control... controls)
{
this(authenticationID, encodePassword(staticPassword), controls);
}
/**
* Creates a new generate TOTP shared secret extended request with the
* provided information.
*
* @param authenticationID The authentication ID to use to identify the user
* for whom to generate the TOTP shared secret. It
* should be a string in the form "dn:" followed by
* the DN of the target user, or "u:" followed by
* the username. It may be {@code null} if the TOTP
* shared secret is to be generated for the
* authorization identity for the operation, and
* only if the {@code staticPassword} is
* non-{@code null}).
* @param staticPassword The static password of the user for whom to
* generate the TOTP shared secret. It may be
* {@code null} only if the {@code authenticationID}
* is non-{@code null}, is different from the
* operation's authorization identity, and the
* operation's authorization identity has the
* password-reset privilege.
* @param controls The set of controls to include in the request.
* It may be {@code null} or empty if there should
* not be any request controls.
*/
public GenerateTOTPSharedSecretExtendedRequest(final String authenticationID,
final ASN1OctetString staticPassword, final Control... controls)
{
super(GENERATE_TOTP_SHARED_SECRET_REQUEST_OID,
encodeValue(authenticationID, staticPassword), controls);
this.authenticationID = authenticationID;
this.staticPassword = staticPassword;
}
/**
* Creates a new generate TOTP shared secret extended request that is decoded
* from the provided generic extended request.
*
* @param request The generic extended request to decode as a generate TOTP
* shared secret request.
*
* @throws LDAPException If a problem is encountered while attempting to
* decode the provided request.
*/
public GenerateTOTPSharedSecretExtendedRequest(final ExtendedRequest request)
throws LDAPException
{
super(request);
final ASN1OctetString value = request.getValue();
if (value == null)
{
throw new LDAPException(ResultCode.DECODING_ERROR,
ERR_GEN_TOTP_SECRET_REQUEST_NO_VALUE.get());
}
try
{
String authID = null;
ASN1OctetString staticPW = null;
for (final ASN1Element e :
ASN1Sequence.decodeAsSequence(value.getValue()).elements())
{
switch (e.getType())
{
case TYPE_AUTHENTICATION_ID:
authID = ASN1OctetString.decodeAsOctetString(e).stringValue();
break;
case TYPE_STATIC_PASSWORD:
staticPW = ASN1OctetString.decodeAsOctetString(e);
break;
default:
throw new LDAPException(ResultCode.DECODING_ERROR,
ERR_GEN_TOTP_SECRET_REQUEST_UNRECOGNIZED_TYPE.get(
StaticUtils.toHex(e.getType())));
}
}
if ((authID == null) && (staticPW == null))
{
throw new LDAPException(ResultCode.DECODING_ERROR,
ERR_GEN_TOTP_SECRET_REQUEST_NEITHER_AUTHN_ID_NOR_PW.get());
}
authenticationID = authID;
staticPassword = staticPW;
}
catch (final LDAPException le)
{
Debug.debugException(le);
throw le;
}
catch (final Exception e)
{
Debug.debugException(e);
throw new LDAPException(ResultCode.DECODING_ERROR,
ERR_GEN_TOTP_SECRET_REQUEST_ERROR_DECODING_VALUE.get(
StaticUtils.getExceptionMessage(e)),
e);
}
}
/**
* Encodes the provided password as an ASN.1 octet string suitable for
* inclusion in the encoded request.
*
* @param password The password to be encoded. It may be {@code null} if
* no password should be included. If it is
* non-{@code null}, then it must be a string or a byte
* array.
*
* @return The encoded password, or {@code null} if no password was given.
*/
static ASN1OctetString encodePassword(final Object password)
{
if (password == null)
{
return null;
}
else if (password instanceof byte[])
{
return new ASN1OctetString(TYPE_STATIC_PASSWORD, (byte[]) password);
}
else
{
return new ASN1OctetString(TYPE_STATIC_PASSWORD,
String.valueOf(password));
}
}
/**
* Encodes the provided information into an ASN.1 octet string suitable for
* use as the value of this extended request.
*
* @param authenticationID The authentication ID to use to identify the user
* for whom to generate the TOTP shared secret. It
* should be a string in the form "dn:" followed by
* the DN of the target user, or "u:" followed by
* the username. It may be {@code null} if the TOTP
* shared secret is to be generated for the
* authorization identity for the operation, and
* only if the {@code staticPassword} is
* non-{@code null}).
* @param staticPassword The static password of the user for whom to
* generate the TOTP shared secret. It may be
* {@code null} only if the {@code authenticationID}
* is non-{@code null}, is different from the
* operation's authorization identity, and the
* operation's authorization identity has the
* password-reset privilege.
*
* @return The ASN.1 octet string containing the encoded request value.
*/
private static ASN1OctetString encodeValue(final String authenticationID,
final ASN1OctetString staticPassword)
{
if (authenticationID == null)
{
Validator.ensureTrue((staticPassword != null),
"If the authentication ID is null, the static password must be " +
"non-null.");
}
final ArrayList elements = new ArrayList(2);
if (authenticationID != null)
{
elements.add(
new ASN1OctetString(TYPE_AUTHENTICATION_ID, authenticationID));
}
if (staticPassword != null)
{
elements.add(staticPassword);
}
return new ASN1OctetString(new ASN1Sequence(elements).encode());
}
/**
* Retrieves the authentication ID that identifies the user for whom to
* generate the TOTP shared secret, if provided.
*
* @return The authentication ID that identifies the target user, or
* {@code null} if the shared secret is to be generated for the
* authorization identity associated with the extended request.
*/
public String getAuthenticationID()
{
return authenticationID;
}
/**
* Retrieves the string representation of the static password for the target
* user, if provided.
*
* @return The string representation of the static password for the target
* user, or {@code null} if no static password was provided.
*/
public String getStaticPasswordString()
{
if (staticPassword == null)
{
return null;
}
else
{
return staticPassword.stringValue();
}
}
/**
* Retrieves the bytes that comprise the static password for the target user,
* if provided.
*
* @return The bytes that comprise the static password for the target user,
* or {@code null} if no static password was provided.
*/
public byte[] getStaticPasswordBytes()
{
if (staticPassword == null)
{
return null;
}
else
{
return staticPassword.getValue();
}
}
/**
* {@inheritDoc}
*/
@Override()
protected GenerateTOTPSharedSecretExtendedResult process(
final LDAPConnection connection, final int depth)
throws LDAPException
{
return new GenerateTOTPSharedSecretExtendedResult(
super.process(connection, depth));
}
/**
* {@inheritDoc}
*/
@Override()
public GenerateTOTPSharedSecretExtendedRequest duplicate()
{
return duplicate(getControls());
}
/**
* {@inheritDoc}
*/
@Override()
public GenerateTOTPSharedSecretExtendedRequest duplicate(
final Control[] controls)
{
final GenerateTOTPSharedSecretExtendedRequest r =
new GenerateTOTPSharedSecretExtendedRequest(authenticationID,
staticPassword, controls);
r.setResponseTimeoutMillis(getResponseTimeoutMillis(null));
return r;
}
/**
* {@inheritDoc}
*/
@Override()
public String getExtendedRequestName()
{
return INFO_GEN_TOTP_SECRET_REQUEST_NAME.get();
}
/**
* {@inheritDoc}
*/
@Override()
public void toString(final StringBuilder buffer)
{
buffer.append("GenerateTOTPSharedSecretExtendedRequest(");
if (authenticationID != null)
{
buffer.append("authenticationID='");
buffer.append(authenticationID);
buffer.append("', ");
}
buffer.append("staticPasswordProvided=");
buffer.append(staticPassword != null);
final Control[] controls = getControls();
if (controls.length > 0)
{
buffer.append(", controls={");
for (int i=0; i < controls.length; i++)
{
if (i > 0)
{
buffer.append(", ");
}
buffer.append(controls[i]);
}
buffer.append('}');
}
buffer.append(')');
}
}
