added package for password-policy specific classes and an ldaptemplate compatible context factory.
This commit is contained in:
parent
57a8d2adb3
commit
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package org.acegisecurity.ldap;
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import net.sf.ldaptemplate.ContextSource;
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import javax.naming.directory.DirContext;
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import org.springframework.dao.DataAccessException;
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/**
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* A version of InitialDirContextFactory that implements the ldaptemplate ContextSource interface.
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*
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* DefaultInitialDirContextFactory should be modified to implement this when it is possible to
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* introduce a dependency on ldaptemplate in the main code.
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*
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* @author Luke
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* @version $Id$
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*/
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public class ContextSourceInitialDirContextFactory extends DefaultInitialDirContextFactory implements ContextSource {
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public ContextSourceInitialDirContextFactory(String providerUrl) {
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super(providerUrl);
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}
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public DirContext getReadOnlyContext() throws DataAccessException {
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return newInitialDirContext();
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}
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public DirContext getReadWriteContext() throws DataAccessException {
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return newInitialDirContext();
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}
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}
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package org.acegisecurity.ldap.ppolicy;
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/**
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* @author Luke
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* @version $Id$
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*/
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public class AccountLockedException extends PasswordPolicyException {
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public AccountLockedException(String msg) {
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super(msg);
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}
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public AccountLockedException(String msg, Throwable t) {
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super(msg, t);
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}
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}
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package org.acegisecurity.ldap.ppolicy;
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/**
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* @author Luke
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* @version $Id$
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*/
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public class OracleIDPasswordPolicyControl extends PasswordPolicyControl {
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public String getID() {
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return "2.16.840.1.113894.1.8.6";
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}
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}
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package org.acegisecurity.ldap.ppolicy;
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/**
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* @author Luke
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* @version $Id$
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*/
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public class PasswordExpiredException extends PasswordPolicyException {
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public PasswordExpiredException(String msg) {
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super(msg);
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}
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public PasswordExpiredException(String msg, Throwable t) {
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super(msg, t);
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}
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}
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package org.acegisecurity.ldap.ppolicy;
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/**
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* @author Luke
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* @version $Id$
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*/
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public class PasswordInHistoryException extends PasswordPolicyException {
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public PasswordInHistoryException(String msg) {
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super(msg);
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}
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public PasswordInHistoryException(String msg, Throwable t) {
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super(msg, t);
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}
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}
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/* Copyright 2004, 2005, 2006 Acegi Technology Pty Limited
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.acegisecurity.ldap.ppolicy;
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import javax.naming.ldap.Control;
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/**
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* A Password Policy request control.<p>Based on the information in the corresponding internet draft on LDAP
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* password policy.</p>
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*
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* @author Stefan Zoerner
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* @author Luke Taylor
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* @version $Id: PasswordPolicyControl.java 1496 2006-05-23 13:38:33Z benalex $
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*
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* @see PasswordPolicyResponseControl
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* @see <a href="http://www.ietf.org/internet-drafts/draft-behera-ldap-password-policy-09.txt">Password Policy for LDAP
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* Directories</a>
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*/
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public class PasswordPolicyControl implements Control {
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//~ Static fields/initializers =====================================================================================
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/** OID of the Password Policy Control */
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public static final String OID = "1.3.6.1.4.1.42.2.27.8.5.1";
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//~ Instance fields ================================================================================================
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private boolean critical;
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//~ Constructors ===================================================================================================
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/**
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* Creates a non-critical (request) control.
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*/
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public PasswordPolicyControl() {
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this(Control.NONCRITICAL);
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}
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/**
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* Creates a (request) control.
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*
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* @param critical indicates whether the control is
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* critical for the client
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*/
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public PasswordPolicyControl(boolean critical) {
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this.critical = critical;
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}
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//~ Methods ========================================================================================================
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/**
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* Retrieves the ASN.1 BER encoded value of the LDAP control. The request value for this control is always
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* empty.
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*
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* @return always null
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*/
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public byte[] getEncodedValue() {
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return null;
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}
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/**
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* Returns the OID of the Password Policy Control.
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*
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* @return DOCUMENT ME!
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*/
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public String getID() {
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return OID;
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}
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/**
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* Returns whether the control is critical for the client.
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*
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* @return DOCUMENT ME!
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*/
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public boolean isCritical() {
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return critical;
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}
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}
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/* Copyright 2004, 2005, 2006 Acegi Technology Pty Limited
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.acegisecurity.ldap.ppolicy;
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import org.acegisecurity.ldap.ppolicy.PasswordPolicyControl;
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import javax.naming.ldap.Control;
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import javax.naming.ldap.ControlFactory;
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/**
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* Transforms a control object to a PasswordPolicyResponseControl object, if appropriate.
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*
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* @author Stefan Zoerner
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* @author Luke Taylor
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* @version $Id: PasswordPolicyControlFactory.java 1496 2006-05-23 13:38:33Z benalex $
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*/
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public class PasswordPolicyControlFactory extends ControlFactory {
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//~ Methods ========================================================================================================
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/**
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* Creates an instance of PasswordPolicyResponseControl if the passed control is a response control of this
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* type. Attributes of the result are filled with the correct values (e.g. error code).
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*
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* @param ctl the control the check
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*
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* @return a response control of type PasswordPolicyResponseControl, or null
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*/
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public Control getControlInstance(Control ctl) {
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if (ctl.getID().equals(PasswordPolicyControl.OID)) {
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return new PasswordPolicyResponseControl(ctl.getEncodedValue());
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}
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return null;
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}
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}
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package org.acegisecurity.ldap.ppolicy;
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import org.acegisecurity.AuthenticationException;
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/**
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* @author Luke
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* @version $Id$
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*/
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public class PasswordPolicyException extends AuthenticationException {
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public PasswordPolicyException(String msg) {
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super(msg);
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}
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public PasswordPolicyException(String msg, Throwable t) {
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super(msg, t);
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}
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}
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/* Copyright 2004, 2005, 2006 Acegi Technology Pty Limited
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.acegisecurity.ldap.ppolicy;
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import netscape.ldap.ber.stream.BERChoice;
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import netscape.ldap.ber.stream.BERElement;
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import netscape.ldap.ber.stream.BEREnumerated;
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import netscape.ldap.ber.stream.BERInteger;
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//import com.novell.ldap.asn1.LBERDecoder;
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//import com.novell.ldap.asn1.ASN1Sequence;
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//import com.novell.ldap.asn1.ASN1Tagged;
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//import com.novell.ldap.asn1.ASN1OctetString;
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import netscape.ldap.ber.stream.BERSequence;
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import netscape.ldap.ber.stream.BERTag;
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import netscape.ldap.ber.stream.BERTagDecoder;
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import org.acegisecurity.ldap.LdapDataAccessException;
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import org.acegisecurity.ldap.ppolicy.PasswordPolicyControl;
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import org.apache.commons.logging.Log;
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import org.apache.commons.logging.LogFactory;
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import java.io.ByteArrayInputStream;
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import java.io.IOException;
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import java.io.InputStream;
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/**
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* Represent the response control received when a <tt>PasswordPolicyControl</tt> is used when binding to a
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* directory. Currently tested with the OpenLDAP 2.3.19 implementation of the LDAP Password Policy Draft. It extends
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* the request control with the control specific data. This is accomplished by the properties timeBeforeExpiration,
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* graceLoginsRemaining and errorCodes. getEncodedValue returns the unchanged value of the response control as a byte
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* array.
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*
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* @author Stefan Zoerner
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* @author Luke Taylor
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* @version $Id: PasswordPolicyResponseControl.java 1496 2006-05-23 13:38:33Z benalex $
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*
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* @see org.acegisecurity.ldap.ppolicy.PasswordPolicyControl
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* @see <a href="http://www.ibm.com/developerworks/tivoli/library/t-ldap-controls/">Stefan Zoerner's IBM developerworks
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* article on LDAP controls.</a>
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*/
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public class PasswordPolicyResponseControl extends PasswordPolicyControl {
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//~ Static fields/initializers =====================================================================================
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private static final Log logger = LogFactory.getLog(PasswordPolicyResponseControl.class);
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public static final int ERROR_NONE = -1;
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public static final int ERROR_PASSWORD_EXPIRED = 0;
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public static final int ERROR_ACCOUNT_LOCKED = 1;
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public static final int WARNINGS_DEFAULT = -1;
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private static final String[] errorText = {
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"password expired", "account locked", "change after reset", "password mod not allowed",
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"must supply old password", "invalid password syntax", "password too short", "password too young",
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"password in history"
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};
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//~ Instance fields ================================================================================================
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private byte[] encodedValue;
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private int errorCode = ERROR_NONE;
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private int graceLoginsRemaining = WARNINGS_DEFAULT;
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private int timeBeforeExpiration = WARNINGS_DEFAULT;
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//~ Constructors ===================================================================================================
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public PasswordPolicyResponseControl(byte[] encodedValue) {
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this.encodedValue = encodedValue;
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//PPolicyDecoder decoder = new JLdapDecoder();
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PPolicyDecoder decoder = new NetscapeDecoder();
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try {
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decoder.decode();
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} catch (IOException e) {
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throw new LdapDataAccessException("Failed to parse control value", e);
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}
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}
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//~ Methods ========================================================================================================
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/**
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* Returns the unchanged value of the response control. Returns the unchanged value of the response
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* control as byte array.
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*
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* @return DOCUMENT ME!
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*/
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public byte[] getEncodedValue() {
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return encodedValue;
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}
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/**
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* Returns the error code, or ERROR_NONE, if no error is present.
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*
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* @return the error code (0-8), or ERROR_NONE
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*/
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public int getErrorCode() {
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return errorCode;
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}
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/**
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* Decodes the Ber encoded control data. The ASN.1 value of the control data is:<pre>
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* PasswordPolicyResponseValue ::= SEQUENCE { warning [0] CHOICE {
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* timeBeforeExpiration [0] INTEGER (0 .. maxInt),
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* graceAuthNsRemaining [1] INTEGER (0 .. maxInt) } OPTIONAL, error [1] ENUMERATED {
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* passwordExpired (0), accountLocked (1),
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* changeAfterReset (2), passwordModNotAllowed (3),
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* mustSupplyOldPassword (4), insufficientPasswordQuality (5),
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* passwordTooShort (6), passwordTooYoung (7),
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* passwordInHistory (8) } OPTIONAL }</pre>
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*
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* @return DOCUMENT ME!
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*/
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/**
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* Returns the graceLoginsRemaining.
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*
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* @return Returns the graceLoginsRemaining.
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*/
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public int getGraceLoginsRemaining() {
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return graceLoginsRemaining;
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}
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/**
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* Returns the timeBeforeExpiration.
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*
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* @return Returns the time before expiration in seconds
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*/
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public int getTimeBeforeExpiration() {
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return timeBeforeExpiration;
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}
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/**
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* Checks whether an error is present.
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*
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* @return true, if an error is present
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*/
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public boolean hasError() {
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return this.getErrorCode() != ERROR_NONE;
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}
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/**
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* Checks whether a warning is present.
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*
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* @return true, if a warning is present
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*/
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public boolean hasWarning() {
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return (graceLoginsRemaining != WARNINGS_DEFAULT) || (timeBeforeExpiration != WARNINGS_DEFAULT);
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}
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public boolean isExpired() {
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return errorCode == ERROR_PASSWORD_EXPIRED;
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}
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/**
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* Determines whether an account locked error has been returned.
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*
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* @return true if the account is locked.
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*/
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public boolean isLocked() {
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return errorCode == ERROR_ACCOUNT_LOCKED;
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}
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/**
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* Create a textual representation containing error and warning messages, if any are present.
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*
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* @return error and warning messages
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*/
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public String toString() {
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StringBuffer sb = new StringBuffer("PasswordPolicyResponseControl");
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if (hasError()) {
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sb.append(", error: ").append(errorText[errorCode]);
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}
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if (graceLoginsRemaining != WARNINGS_DEFAULT) {
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sb.append(", warning: ").append(graceLoginsRemaining).append(" grace logins remain");
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}
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if (timeBeforeExpiration != WARNINGS_DEFAULT) {
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sb.append(", warning: time before expiration is ").append(timeBeforeExpiration);
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}
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if (!hasError() && !hasWarning()) {
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sb.append(" (no error, no warning)");
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}
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return sb.toString();
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}
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//~ Inner Interfaces ===============================================================================================
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private interface PPolicyDecoder {
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void decode() throws IOException;
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}
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//~ Inner Classes ==================================================================================================
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/**
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* Decoder based on Netscape ldapsdk library
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*/
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private class NetscapeDecoder implements PPolicyDecoder {
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public void decode() throws IOException {
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int[] bread = {0};
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BERSequence seq = (BERSequence) BERElement.getElement(new SpecificTagDecoder(),
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new ByteArrayInputStream(encodedValue), bread);
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int size = seq.size();
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if (logger.isDebugEnabled()) {
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logger.debug("PasswordPolicyResponse, ASN.1 sequence has " + size + " elements");
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}
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for (int i = 0; i < seq.size(); i++) {
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BERTag elt = (BERTag) seq.elementAt(i);
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int tag = elt.getTag() & 0x1F;
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if (tag == 0) {
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BERChoice warning = (BERChoice) elt.getValue();
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BERTag content = (BERTag) warning.getValue();
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int value = ((BERInteger) content.getValue()).getValue();
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if ((content.getTag() & 0x1F) == 0) {
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timeBeforeExpiration = value;
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} else {
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graceLoginsRemaining = value;
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}
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} else if (tag == 1) {
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BEREnumerated error = (BEREnumerated) elt.getValue();
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errorCode = error.getValue();
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}
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}
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}
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class SpecificTagDecoder extends BERTagDecoder {
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/** Allows us to remember which of the two options we're decoding */
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private Boolean inChoice = null;
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public BERElement getElement(BERTagDecoder decoder, int tag, InputStream stream, int[] bytesRead,
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boolean[] implicit) throws IOException {
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tag &= 0x1F;
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implicit[0] = false;
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if (tag == 0) {
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// Either the choice or the time before expiry within it
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if (inChoice == null) {
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setInChoice(true);
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// Read the choice length from the stream (ignored)
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BERElement.readLengthOctets(stream, bytesRead);
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int[] componentLength = new int[1];
|
||||
BERElement choice = new BERChoice(decoder, stream, componentLength);
|
||||
bytesRead[0] += componentLength[0];
|
||||
|
||||
// inChoice = null;
|
||||
return choice;
|
||||
} else {
|
||||
// Must be time before expiry
|
||||
return new BERInteger(stream, bytesRead);
|
||||
}
|
||||
} else if (tag == 1) {
|
||||
// Either the graceLogins or the error enumeration.
|
||||
if (inChoice == null) {
|
||||
// The enumeration
|
||||
setInChoice(false);
|
||||
|
||||
return new BEREnumerated(stream, bytesRead);
|
||||
} else {
|
||||
if (inChoice.booleanValue()) {
|
||||
// graceLogins
|
||||
return new BERInteger(stream, bytesRead);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
throw new LdapDataAccessException("Unexpected tag " + tag);
|
||||
}
|
||||
|
||||
private void setInChoice(boolean inChoice) {
|
||||
this.inChoice = new Boolean(inChoice);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/** Decoder based on the OpenLDAP/Novell JLDAP library */
|
||||
|
||||
// private class JLdapDecoder implements PPolicyDecoder {
|
||||
//
|
||||
// public void decode() throws IOException {
|
||||
//
|
||||
// LBERDecoder decoder = new LBERDecoder();
|
||||
//
|
||||
// ASN1Sequence seq = (ASN1Sequence)decoder.decode(encodedValue);
|
||||
//
|
||||
// if(seq == null) {
|
||||
//
|
||||
// }
|
||||
//
|
||||
// int size = seq.size();
|
||||
//
|
||||
// if(logger.isDebugEnabled()) {
|
||||
// logger.debug("PasswordPolicyResponse, ASN.1 sequence has " +
|
||||
// size + " elements");
|
||||
// }
|
||||
//
|
||||
// for(int i=0; i < size; i++) {
|
||||
//
|
||||
// ASN1Tagged taggedObject = (ASN1Tagged)seq.get(i);
|
||||
//
|
||||
// int tag = taggedObject.getIdentifier().getTag();
|
||||
//
|
||||
// ASN1OctetString value = (ASN1OctetString)taggedObject.taggedValue();
|
||||
// byte[] content = value.byteValue();
|
||||
//
|
||||
// if(tag == 0) {
|
||||
// parseWarning(content, decoder);
|
||||
//
|
||||
// } else if(tag == 1) {
|
||||
// // Error: set the code to the value
|
||||
// errorCode = content[0];
|
||||
// }
|
||||
// }
|
||||
// }
|
||||
//
|
||||
// private void parseWarning(byte[] content, LBERDecoder decoder) {
|
||||
// // It's the warning (choice). Parse the number and set either the
|
||||
// // expiry time or number of logins remaining.
|
||||
// ASN1Tagged taggedObject = (ASN1Tagged)decoder.decode(content);
|
||||
// int contentTag = taggedObject.getIdentifier().getTag();
|
||||
// content = ((ASN1OctetString)taggedObject.taggedValue()).byteValue();
|
||||
// int number;
|
||||
//
|
||||
// try {
|
||||
// number = ((Long)decoder.decodeNumeric(new ByteArrayInputStream(content), content.length)).intValue();
|
||||
// } catch(IOException e) {
|
||||
// throw new LdapDataAccessException("Failed to parse number ", e);
|
||||
// }
|
||||
//
|
||||
// if(contentTag == 0) {
|
||||
// timeBeforeExpiration = number;
|
||||
// } else if (contentTag == 1) {
|
||||
// graceLoginsRemaining = number;
|
||||
// }
|
||||
// }
|
||||
// }
|
||||
}
|
Loading…
Reference in New Issue