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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.ws.security.message.token;
import org.apache.ws.security.WSConstants;
import org.apache.ws.security.WSSecurityException;
import org.apache.ws.security.util.DOM2Writer;
import org.apache.ws.security.util.DateUtil;
import org.apache.ws.security.util.WSCurrentTimeSource;
import org.apache.ws.security.util.WSSecurityUtil;
import org.apache.ws.security.util.WSTimeSource;
import org.apache.ws.security.util.XmlSchemaDateFormat;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.w3c.dom.Text;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.text.DateFormat;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import java.util.TimeZone;
/**
* Timestamp according to SOAP Message Security 1.0,
* chapter 10 / appendix A.2
*
* @author Christof Soehngen ([email protected])
*/
public class Timestamp {
private static final org.apache.commons.logging.Log LOG =
org.apache.commons.logging.LogFactory.getLog(Timestamp.class);
protected Element element = null;
protected List customElements = null;
protected Date createdDate;
protected Date expiresDate;
/**
* Constructs a Timestamp object and parses the
* wsu:Timestamp element to initialize it.
*
* @param timestampElement the wsu:Timestamp element that
* contains the timestamp data
*/
public Timestamp(Element timestampElement) throws WSSecurityException {
this(timestampElement, true);
}
/**
* Constructs a Timestamp object and parses the
* wsu:Timestamp element to initialize it.
*
* @param timestampElement the wsu:Timestamp element that
* contains the timestamp data
* @param bspCompliant whether the Timestamp processing complies with the BSP spec
*/
public Timestamp(Element timestampElement, boolean bspCompliant) throws WSSecurityException {
element = timestampElement;
customElements = new ArrayList();
String strCreated = null;
String strExpires = null;
for (Node currentChild = element.getFirstChild();
currentChild != null;
currentChild = currentChild.getNextSibling()
) {
if (Node.ELEMENT_NODE == currentChild.getNodeType()) {
Element currentChildElement = (Element) currentChild;
if (WSConstants.CREATED_LN.equals(currentChild.getLocalName()) &&
WSConstants.WSU_NS.equals(currentChild.getNamespaceURI())) {
if (strCreated == null) {
String valueType = currentChildElement.getAttributeNS(null, "ValueType");
if (bspCompliant && valueType != null && !"".equals(valueType)) {
// We can't have a ValueType attribute as per the BSP spec
throw new WSSecurityException(
WSSecurityException.INVALID_SECURITY, "invalidTimestamp"
);
}
strCreated = ((Text)currentChildElement.getFirstChild()).getData();
} else {
// Test for multiple Created elements
throw new WSSecurityException(
WSSecurityException.INVALID_SECURITY, "invalidTimestamp"
);
}
} else if (WSConstants.EXPIRES_LN.equals(currentChild.getLocalName()) &&
WSConstants.WSU_NS.equals(currentChild.getNamespaceURI())) {
if (strExpires != null || (bspCompliant && strCreated == null)) {
//
// Created must appear before Expires and we can't have multiple Expires
// elements
//
throw new WSSecurityException(
WSSecurityException.INVALID_SECURITY, "invalidTimestamp"
);
} else {
String valueType = currentChildElement.getAttributeNS(null, "ValueType");
if (bspCompliant && valueType != null && !"".equals(valueType)) {
// We can't have a ValueType attribute as per the BSP spec
throw new WSSecurityException(
WSSecurityException.INVALID_SECURITY, "invalidTimestamp"
);
}
strExpires = ((Text)currentChildElement.getFirstChild()).getData();
}
} else {
if (bspCompliant) {
throw new WSSecurityException(
WSSecurityException.INVALID_SECURITY, "invalidTimestamp"
);
}
customElements.add(currentChildElement);
}
}
}
// We must have a Created element
if (bspCompliant && strCreated == null) {
throw new WSSecurityException(
WSSecurityException.INVALID_SECURITY, "invalidTimestamp"
);
}
// Parse the dates
DateFormat zulu = new XmlSchemaDateFormat();
if (bspCompliant) {
zulu.setLenient(false);
}
try {
if (LOG.isDebugEnabled()) {
LOG.debug("Current time: " + zulu.format(new Date()));
}
if (strCreated != null) {
createdDate = zulu.parse(strCreated);
if (LOG.isDebugEnabled()) {
LOG.debug("Timestamp created: " + zulu.format(createdDate));
}
}
if (strExpires != null) {
expiresDate = zulu.parse(strExpires);
if (LOG.isDebugEnabled()) {
LOG.debug("Timestamp expires: " + zulu.format(expiresDate));
}
}
} catch (ParseException e) {
throw new WSSecurityException(
WSSecurityException.INVALID_SECURITY, "invalidTimestamp", null, e
);
}
}
/**
* Constructs a Timestamp object according
* to the defined parameters.
*
* @param doc the SOAP envelope as Document
* @param ttl the time to live (validity of the security semantics) in seconds
*/
public Timestamp(boolean milliseconds, Document doc, int ttl) {
this(milliseconds, doc, new WSCurrentTimeSource(), ttl);
}
/**
* Constructs a Timestamp object according
* to the defined parameters.
*
* @param doc the SOAP envelope as Document
* @param ttl the time to live (validity of the security semantics) in seconds
*/
public Timestamp(boolean milliseconds, Document doc, WSTimeSource timeSource, int ttl) {
customElements = new ArrayList();
element =
doc.createElementNS(
WSConstants.WSU_NS, WSConstants.WSU_PREFIX + ":" + WSConstants.TIMESTAMP_TOKEN_LN
);
DateFormat zulu = null;
if (milliseconds) {
zulu = new XmlSchemaDateFormat();
} else {
zulu = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss'Z'");
zulu.setTimeZone(TimeZone.getTimeZone("UTC"));
}
Element elementCreated =
doc.createElementNS(
WSConstants.WSU_NS, WSConstants.WSU_PREFIX + ":" + WSConstants.CREATED_LN
);
createdDate = timeSource.now();
elementCreated.appendChild(doc.createTextNode(zulu.format(createdDate)));
element.appendChild(elementCreated);
if (ttl != 0) {
expiresDate = timeSource.now();
expiresDate.setTime(createdDate.getTime() + ((long)ttl * 1000L));
Element elementExpires =
doc.createElementNS(
WSConstants.WSU_NS, WSConstants.WSU_PREFIX + ":" + WSConstants.EXPIRES_LN
);
elementExpires.appendChild(doc.createTextNode(zulu.format(expiresDate)));
element.appendChild(elementExpires);
}
}
/**
* Add the WSU Namespace to this T. The namespace is not added by default for
* efficiency purposes.
*/
public void addWSUNamespace() {
WSSecurityUtil.setNamespace(element, WSConstants.WSU_NS, WSConstants.WSU_PREFIX);
}
/**
* Returns the dom element of this Timestamp object.
*
* @return the wsse:UsernameToken element
*/
public Element getElement() {
return element;
}
/**
* Returns the string representation of the token.
*
* @return a XML string representation
*/
public String toString() {
return DOM2Writer.nodeToString((Node) element);
}
/**
* Get the time of creation.
*
* @return the "created" time
*/
public Date getCreated() {
return createdDate;
}
/**
* Get the time of expiration.
*
* @return the "expires" time
*/
public Date getExpires() {
return expiresDate;
}
/**
* Creates and adds a custom element to this Timestamp
*/
public void addCustomElement(Document doc, Element customElement) {
customElements.add(customElement);
element.appendChild(customElement);
}
/**
* Get the the custom elements from this Timestamp
*
* @return the list containing the custom elements.
*/
public List getCustomElements() {
return customElements;
}
/**
* Set wsu:Id attribute of this timestamp
* @param id
*/
public void setID(String id) {
element.setAttributeNS(WSConstants.WSU_NS, WSConstants.WSU_PREFIX + ":Id", id);
}
/**
* @return the value of the wsu:Id attribute
*/
public String getID() {
return element.getAttributeNS(WSConstants.WSU_NS, "Id");
}
/**
* Return true if the current Timestamp is expired, meaning if the "Expires" value
* is before the current time. It returns false if there is no Expires value.
*/
public boolean isExpired() {
if (expiresDate != null) {
Date rightNow = new Date();
return expiresDate.before(rightNow);
}
return false;
}
/**
* Return true if the "Created" value is before the current time minus the timeToLive
* argument, and if the Created value is not "in the future".
*
* @param timeToLive the value in seconds for the validity of the Created time
* @param futureTimeToLive the value in seconds for the future validity of the Created time
* @return true if the timestamp is before (now-timeToLive), false otherwise
*/
public boolean verifyCreated(
int timeToLive,
int futureTimeToLive
) {
return DateUtil.verifyCreated(createdDate, timeToLive, futureTimeToLive);
}
@Override
public int hashCode() {
int result = 17;
if (createdDate != null) {
result = 31 * result + createdDate.hashCode();
}
if (expiresDate != null) {
result = 31 * result + expiresDate.hashCode();
}
return result;
}
@Override
public boolean equals(Object object) {
if (!(object instanceof Timestamp)) {
return false;
}
Timestamp timestamp = (Timestamp)object;
if (!compare(timestamp.getCreated(), getCreated())) {
return false;
}
if (!compare(timestamp.getExpires(), getExpires())) {
return false;
}
return true;
}
private boolean compare(Date item1, Date item2) {
if (item1 == null && item2 != null) {
return false;
} else if (item1 != null && !item1.equals(item2)) {
return false;
}
return true;
}
}
