/*
* 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.axis2.handlers.addressing;
import org.apache.axiom.om.OMAttribute;
import org.apache.axiom.om.OMElement;
import org.apache.axiom.om.OMNamespace;
import org.apache.axiom.om.util.AttributeHelper;
import org.apache.axiom.om.util.ElementHelper;
import org.apache.axiom.om.util.UUIDGenerator;
import org.apache.axiom.soap.SOAPEnvelope;
import org.apache.axiom.soap.SOAPFactory;
import org.apache.axiom.soap.SOAPFault;
import org.apache.axiom.soap.SOAPHeader;
import org.apache.axiom.soap.SOAPHeaderBlock;
import org.apache.axis2.AxisFault;
import org.apache.axis2.addressing.AddressingConstants;
import org.apache.axis2.addressing.AddressingFaultsHelper;
import org.apache.axis2.addressing.EndpointReference;
import org.apache.axis2.addressing.EndpointReferenceHelper;
import org.apache.axis2.addressing.RelatesTo;
import org.apache.axis2.addressing.i18n.AddressingMessages;
import org.apache.axis2.client.Options;
import org.apache.axis2.context.MessageContext;
import org.apache.axis2.description.AxisEndpoint;
import org.apache.axis2.description.AxisService;
import org.apache.axis2.description.HandlerDescription;
import org.apache.axis2.description.Parameter;
import org.apache.axis2.handlers.AbstractHandler;
import org.apache.axis2.util.JavaUtils;
import org.apache.axis2.util.LoggingControl;
import org.apache.axis2.util.Utils;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import javax.xml.namespace.QName;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
public class AddressingOutHandler extends AbstractHandler implements AddressingConstants {
private static final Log log = LogFactory.getLog(AddressingOutHandler.class);
private boolean includeOptionalHeaders;
private boolean disableAddressing;
public void init(HandlerDescription arg0) {
super.init(arg0);
//Determine whether to include optional addressing headers in the output message.
//The default is not to include any headers that can be safely omitted.
Parameter param = arg0.getParameter(INCLUDE_OPTIONAL_HEADERS);
String value = Utils.getParameterValue(param);
includeOptionalHeaders = JavaUtils.isTrueExplicitly(value);
if (LoggingControl.debugLoggingAllowed && log.isDebugEnabled()) {
log.debug("includeOptionalHeaders=" + includeOptionalHeaders);
}
//Determine whether to disable the handler by default.
param = arg0.getParameter(DISABLE_ADDRESSING_FOR_OUT_MESSAGES);
value = Utils.getParameterValue(param);
disableAddressing = JavaUtils.isTrueExplicitly(value);
if (LoggingControl.debugLoggingAllowed && log.isDebugEnabled()) {
log.debug("disableAddressing=" + disableAddressing);
}
}
public InvocationResponse invoke(MessageContext msgContext) throws AxisFault {
//determine whether outbound addressing has been disabled or not.
boolean disableAddressing =
msgContext.isPropertyTrue(DISABLE_ADDRESSING_FOR_OUT_MESSAGES, this.disableAddressing);
if (disableAddressing) {
if (LoggingControl.debugLoggingAllowed && log.isTraceEnabled()) {
log.trace(msgContext.getLogIDString() +
" Addressing is disabled. Not adding WS-Addressing headers.");
}
return InvocationResponse.CONTINUE;
}
// Determine the addressin namespace in effect.
Object addressingVersionFromCurrentMsgCtxt = msgContext.getProperty(WS_ADDRESSING_VERSION);
if (LoggingControl.debugLoggingAllowed && log.isTraceEnabled()) {
log.trace("Addressing version string from messageContext=" +
addressingVersionFromCurrentMsgCtxt);
}
boolean isSubmissionNamespace =
Submission.WSA_NAMESPACE.equals(addressingVersionFromCurrentMsgCtxt);
// Determine whether to include optional addressing headers in the output.
boolean includeOptionalHeaders =
msgContext.isPropertyTrue(INCLUDE_OPTIONAL_HEADERS, this.includeOptionalHeaders);
if (LoggingControl.debugLoggingAllowed && log.isDebugEnabled()) {
log.debug("includeOptionalHeaders=" + includeOptionalHeaders);
}
// Determine if a MustUnderstand attribute will be added to all headers in the
// addressing namespace.
boolean addMustUnderstandAttribute =
msgContext.isPropertyTrue(ADD_MUST_UNDERSTAND_TO_ADDRESSING_HEADERS);
// what if there are addressing headers already in the message. Do you replace that or not?
// Lets have a parameter to control that. The default behavior is you won't replace addressing
// headers if there are any (this was the case so far).
boolean replaceHeaders = msgContext.isPropertyTrue(REPLACE_ADDRESSING_HEADERS);
// Allow the user to specify the role these WS-Addressing headers should be targetted at.
String role = (String) msgContext.getProperty(SOAP_ROLE_FOR_ADDRESSING_HEADERS);
WSAHeaderWriter writer = new WSAHeaderWriter(msgContext, isSubmissionNamespace,
addMustUnderstandAttribute, replaceHeaders,
includeOptionalHeaders, role);
writer.writeHeaders();
return InvocationResponse.CONTINUE;
}
private class WSAHeaderWriter {
private MessageContext messageContext;
private SOAPEnvelope envelope;
private SOAPHeader header;
private SOAPFactory factory;
private Options messageContextOptions;
private OMNamespace addressingNamespaceObject;
private String addressingNamespace;
private String addressingRole;
private boolean isFinalAddressingNamespace;
private boolean addMustUnderstandAttribute;
private boolean replaceHeaders; // determines whether we replace the existing headers or not, if they present
private boolean includeOptionalHeaders;
private ArrayList existingWSAHeaders = null;
public WSAHeaderWriter(MessageContext mc, boolean isSubmissionNamespace, boolean addMU,
boolean replace, boolean includeOptional, String role) {
if (LoggingControl.debugLoggingAllowed && log.isDebugEnabled()) {
log.debug("WSAHeaderWriter: isFinal=" + isSubmissionNamespace + " addMU=" + addMU +
" replace=" + replace + " includeOptional=" + includeOptional+" role="+role);
}
messageContext = mc;
envelope = mc.getEnvelope();
factory = (SOAPFactory)envelope.getOMFactory();
messageContextOptions = messageContext.getOptions();
addressingNamespace =
(isSubmissionNamespace ? Submission.WSA_NAMESPACE : Final.WSA_NAMESPACE);
header = envelope.getHeader();
// if there is no soap header in the envelope being processed, add one.
if (header == null) {
header = factory.createSOAPHeader(envelope);
}else{
ArrayList addressingHeaders = header.getHeaderBlocksWithNSURI(addressingNamespace);
if(addressingHeaders!=null && !addressingHeaders.isEmpty()){
existingWSAHeaders = new ArrayList(addressingHeaders.size());
for(Iterator iter=addressingHeaders.iterator();iter.hasNext();){
SOAPHeaderBlock oe = (SOAPHeaderBlock)iter.next();
if(addressingRole == null || addressingRole.length() ==0 || addressingRole.equals(oe.getRole())){
existingWSAHeaders.add(oe.getLocalName());
}
}
}
if(addressingHeaders != null && addressingHeaders.size() ==0){
addressingHeaders = null;
}
}
isFinalAddressingNamespace = !isSubmissionNamespace;
addMustUnderstandAttribute = addMU;
replaceHeaders = replace;
includeOptionalHeaders = includeOptional;
addressingRole = role;
if(!isFinalAddressingNamespace && mc.getTo() == null){
mc.setTo(new EndpointReference(AddressingConstants.Submission.WSA_ANONYMOUS_URL));
}
}
public void writeHeaders() throws AxisFault {
// by this time, we definitely have some addressing information to be sent. This is because,
// we have tested at the start of this whether messageInformationHeaders are null or not.
// So rather than declaring addressing namespace in each and every addressing header, lets
// define that in the Header itself.
addressingNamespaceObject = header.declareNamespace(addressingNamespace, WSA_DEFAULT_PREFIX);
// processing WSA To
processToEPR();
// processing WSA replyTo
processReplyTo();
// processing WSA From
processFromEPR();
// processing WSA FaultTo
processFaultToEPR();
// processing WSA MessageID
processMessageID();
// processing WSA Action
processWSAAction();
// processing WSA RelatesTo
processRelatesTo();
// process fault headers, if present
processFaultsInfoIfPresent();
// process mustUnderstand attribute, if required.
processMustUnderstandProperty();
}
private void processMessageID() {
String messageID = messageContextOptions.getMessageId();
//Check whether we want to force a message id to be sent.
if (messageID == null && includeOptionalHeaders) {
messageID = UUIDGenerator.getUUID();
messageContextOptions.setMessageId(messageID);
}
if (messageID != null && !isAddressingHeaderAlreadyAvailable(WSA_MESSAGE_ID, false))
{//optional
ArrayList attributes = (ArrayList)messageContext.getLocalProperty(
AddressingConstants.MESSAGEID_ATTRIBUTES);
createSOAPHeaderBlock(messageID, WSA_MESSAGE_ID, attributes);
}
}
private void processWSAAction() throws AxisFault {
String action = messageContextOptions.getAction();
if (LoggingControl.debugLoggingAllowed && log.isTraceEnabled()) {
log.trace(messageContext.getLogIDString() +
" processWSAAction: action from messageContext: " + action);
}
if (action == null || action.length()==0) {
if (messageContext.getAxisOperation() != null) {
action = messageContext.getAxisOperation().getOutputAction();
if(action!=null){
// Set this action back to obviate possible action mismatch problems
messageContext.setWSAAction(action);
}
if (LoggingControl.debugLoggingAllowed && log.isTraceEnabled()) {
log.trace(messageContext.getLogIDString() +
" processWSAAction: action from AxisOperation: " + action);
}
}
}else{
// Use the correct fault action for the selected namespace
if(isFinalAddressingNamespace){
if(Submission.WSA_FAULT_ACTION.equals(action)){
action = Final.WSA_FAULT_ACTION;
messageContextOptions.setAction(action);
}
}else{
if(Final.WSA_FAULT_ACTION.equals(action)){
action = Submission.WSA_FAULT_ACTION;
messageContextOptions.setAction(action);
}else if(Final.WSA_SOAP_FAULT_ACTION.equals(action)){
action = Submission.WSA_FAULT_ACTION;
messageContextOptions.setAction(action);
}
}
}
// If we need to add a wsa:Action header
if (!isAddressingHeaderAlreadyAvailable(WSA_ACTION, false)) {
if (LoggingControl.debugLoggingAllowed && log.isTraceEnabled()) {
log.trace(messageContext.getLogIDString() +
" processWSAAction: No existing wsa:Action header found");
}
// If we don't have an action to add,
if (action == null || action.length()==0) {
if (LoggingControl.debugLoggingAllowed && log.isTraceEnabled()) {
log.trace(messageContext.getLogIDString() +
" processWSAAction: No action to add to header");
}
// Fault unless validation has been explictily turned off
if (!messageContext.isPropertyTrue(
AddressingConstants.DISABLE_OUTBOUND_ADDRESSING_VALIDATION))
{
throw new AxisFault(AddressingMessages.getMessage("outboundNoAction"));
}
} else {
if (LoggingControl.debugLoggingAllowed && log.isTraceEnabled()) {
log.trace(messageContext.getLogIDString() +
" processWSAAction: Adding action to header: " + action);
}
// Otherwise just add the header
ArrayList attributes = (ArrayList)messageContext.getLocalProperty(
AddressingConstants.ACTION_ATTRIBUTES);
createSOAPHeaderBlock(action, WSA_ACTION, attributes);
}
}
}
private void processFaultsInfoIfPresent() {
OMElement detailElement = AddressingFaultsHelper
.getDetailElementForAddressingFault(messageContext, addressingNamespaceObject);
if (detailElement != null) {
//The difference between SOAP 1.1 and SOAP 1.2 fault messages is explained in the WS-Addressing Specs.
if (isFinalAddressingNamespace && messageContext.isSOAP11()) {
// Add detail as a wsa:FaultDetail header
if (!isAddressingHeaderAlreadyAvailable(Final.FAULT_HEADER_DETAIL, false)) {
SOAPHeaderBlock faultDetail = header.addHeaderBlock(
Final.FAULT_HEADER_DETAIL, addressingNamespaceObject);
faultDetail.addChild(ElementHelper.importOMElement(detailElement, factory));
}
} else if (!messageContext.isSOAP11()) {
// Add detail to the Fault in the SOAP Body
SOAPFault fault = envelope.getBody().getFault();
if (fault != null && fault.getDetail() != null) {
fault.getDetail().addDetailEntry(
ElementHelper.importOMElement(detailElement, factory));
}
}
}
}
private void processRelatesTo() {
if (!isAddressingHeaderAlreadyAvailable(WSA_RELATES_TO, true)) {
RelatesTo[] relatesTo = messageContextOptions.getRelationships();
if (relatesTo != null) {
for (int i = 0, length = relatesTo.length; i < length; i++) {
OMElement relatesToHeader = createSOAPHeaderBlock(relatesTo[i].getValue(),
WSA_RELATES_TO, relatesTo[i].getExtensibilityAttributes());
String relationshipType = relatesTo[i].getRelationshipType();
if (relatesToHeader != null) {
if(!includeOptionalHeaders){
if (Final.WSA_DEFAULT_RELATIONSHIP_TYPE.equals(relationshipType) ||
Submission.WSA_DEFAULT_RELATIONSHIP_TYPE
.equals(relationshipType)) {
relationshipType = null; //Omit the attribute.
}
}
if(relationshipType != null){
relatesToHeader.addAttribute(WSA_RELATES_TO_RELATIONSHIP_TYPE,
relationshipType,
null);
}
}
}
}
}
}
private void processFaultToEPR() throws AxisFault {
EndpointReference epr = messageContextOptions.getFaultTo();
String headerName = AddressingConstants.WSA_FAULT_TO;
//Omit the header if the epr is null.
if (epr != null && !isAddressingHeaderAlreadyAvailable(headerName, false)) {
addToSOAPHeader(epr, headerName);
}
}
private void processFromEPR() throws AxisFault {
EndpointReference epr = messageContextOptions.getFrom();
String headerName = AddressingConstants.WSA_FROM;
//Omit the header if the epr is null.
if (epr != null && !isAddressingHeaderAlreadyAvailable(headerName, false)) {
addToSOAPHeader(epr, headerName);
}
}
private void processReplyTo() throws AxisFault {
EndpointReference epr = messageContextOptions.getReplyTo();
String headerName = AddressingConstants.WSA_REPLY_TO;
//Don't check epr for null here as addToSOAPHeader() will provide an appropriate default.
//This default is especially useful for client side outbound processing.
if (!isAddressingHeaderAlreadyAvailable(headerName, false)) {
addToSOAPHeader(epr, headerName);
}
}
private void processToEPR() throws AxisFault {
EndpointReference epr = messageContextOptions.getTo();
if (epr != null && !isAddressingHeaderAlreadyAvailable(WSA_TO, false)) {
try {
processToEPRReferenceInformation(epr.getAllReferenceParameters());
}
catch (Exception e) {
throw new AxisFault(AddressingMessages.getMessage("referenceParameterError"), e);
}
String address = epr.getAddress();
if (address != null && address.length()!=0) {
if (!includeOptionalHeaders && isFinalAddressingNamespace &&
epr.isWSAddressingAnonymous())
{
return; //Omit the header.
}
createSOAPHeaderBlock(address, WSA_TO, epr.getAddressAttributes());
}
}
}
private OMElement createSOAPHeaderBlock(String value, String headerName, ArrayList attributes) {
if (LoggingControl.debugLoggingAllowed && log.isTraceEnabled()) {
log.trace("createSOAPHeaderBlock: value=" + value + " headerName=" + headerName);
}
if (value != null && value.length()!=0) {
SOAPHeaderBlock soapHeaderBlock =
header.addHeaderBlock(headerName, addressingNamespaceObject);
soapHeaderBlock.addChild(factory.createOMText(value));
if (attributes != null && !attributes.isEmpty()) {
Iterator attrIterator = attributes.iterator();
while (attrIterator.hasNext()) {
AttributeHelper
.importOMAttribute((OMAttribute)attrIterator.next(), soapHeaderBlock);
}
}
addRoleToHeader(soapHeaderBlock);
return soapHeaderBlock;
}
return null;
}
private void addToSOAPHeader(EndpointReference epr, String headerName) throws AxisFault {
String prefix = addressingNamespaceObject.getPrefix();
String anonymous = isFinalAddressingNamespace ?
Final.WSA_ANONYMOUS_URL : Submission.WSA_ANONYMOUS_URL;
if (LoggingControl.debugLoggingAllowed && log.isTraceEnabled()) {
log.trace("addToSOAPHeader: epr=" + epr + " headerName=" + headerName);
}
if (epr == null) {
if (!includeOptionalHeaders && isFinalAddressingNamespace &&
AddressingConstants.WSA_REPLY_TO.equals(headerName)) {
return; //Omit the header.
} else {
epr = new EndpointReference(anonymous);
}
}
else if (!isFinalAddressingNamespace && epr.hasNoneAddress()) {
return; //Omit the header.
}
else if (epr.isWSAddressingAnonymous())
{
if (!includeOptionalHeaders && isFinalAddressingNamespace &&
AddressingConstants.WSA_REPLY_TO.equals(headerName)) {
return; //Omit the header.
} else {
epr.setAddress(anonymous);
}
}
OMElement soapHeaderBlock = EndpointReferenceHelper.toOM(factory,
epr,
new QName(addressingNamespace,
headerName, prefix),
addressingNamespace);
addRoleToHeader((SOAPHeaderBlock) soapHeaderBlock);
header.addChild(soapHeaderBlock);
}
/**
* This will add reference parameters and/or reference properties in to the message
*
* @param referenceInformation a Map from QName -> OMElement
* @param parent is the element to which the referenceparameters should be
* attached
*/
private void processToEPRReferenceInformation(Map referenceInformation) throws Exception {
if (referenceInformation != null) {
if (LoggingControl.debugLoggingAllowed && log.isTraceEnabled()) {
log.trace("processToEPRReferenceInformation: " + referenceInformation);
}
Iterator iterator = referenceInformation.values().iterator();
while (iterator.hasNext()) {
OMElement omElement = (OMElement)iterator.next();
SOAPHeaderBlock newElement = ElementHelper.toSOAPHeaderBlock(omElement, factory);
if (isFinalAddressingNamespace) {
newElement.addAttribute(Final.WSA_IS_REFERENCE_PARAMETER_ATTRIBUTE,
Final.WSA_TYPE_ATTRIBUTE_VALUE,
addressingNamespaceObject);
}
addRoleToHeader(newElement);
header.addChild(newElement);
}
}
// Now add reference parameters we found in the WSDL (if any)
AxisService service = messageContext.getAxisService();
if(service != null){
AxisEndpoint endpoint = service.getEndpoint(service.getEndpointName());
if(endpoint != null){
ArrayList referenceparameters = (ArrayList) endpoint.getParameterValue(REFERENCE_PARAMETER_PARAMETER);
if (LoggingControl.debugLoggingAllowed && log.isTraceEnabled()) {
log.trace("processToEPRReferenceInformation: Reference Parameters from WSDL:" + referenceparameters);
}
if(referenceparameters!=null){
Iterator iterator = referenceparameters.iterator();
while (iterator.hasNext()) {
OMElement omElement = (OMElement)iterator.next();
SOAPHeaderBlock newElement = ElementHelper.toSOAPHeaderBlock(omElement, factory);
if (isFinalAddressingNamespace) {
newElement.addAttribute(Final.WSA_IS_REFERENCE_PARAMETER_ATTRIBUTE,
Final.WSA_TYPE_ATTRIBUTE_VALUE,
addressingNamespaceObject);
}
addRoleToHeader(newElement);
header.addChild(newElement);
}
}
}
}
}
/**
* This will check for the existence of message information headers already in the message.
* If there are already headers, then replacing them or not depends on the replaceHeaders
* property.
*
* @param name - Name of the message information header
* @param multipleHeaders - determines whether to search for multiple headers, or not.
* @return false - if one can add new headers (always the case if multipleHeaders is true),
* true - if new headers can't be added.
*/
private boolean isAddressingHeaderAlreadyAvailable(String name, boolean multipleHeaders) {
boolean status = false;
if (multipleHeaders) {
if (replaceHeaders) {
QName qname = new QName(addressingNamespace, name, WSA_DEFAULT_PREFIX);
Iterator iterator = header.getChildrenWithName(qname);
while (iterator.hasNext()) {
OMElement addressingHeader = (OMElement)iterator.next();
addressingHeader.detach();
}
}
} else {
boolean exists = didAddressingHeaderExist(name);
if (exists && replaceHeaders) {
QName qname = new QName(addressingNamespace, name, WSA_DEFAULT_PREFIX);
OMElement addressingHeader = header.getFirstChildWithName(qname);
if (LoggingControl.debugLoggingAllowed && log.isTraceEnabled()) {
log.trace("isAddressingHeaderAlreadyAvailable: Removing existing header:" +
addressingHeader.getLocalName());
}
addressingHeader.detach();
} else {
status = exists;
}
}
if (LoggingControl.debugLoggingAllowed && log.isTraceEnabled()) {
log.trace("isAddressingHeaderAlreadyAvailable: name=" + name + " status=" + status);
}
return status;
}
private boolean didAddressingHeaderExist(String headerName){
if (LoggingControl.debugLoggingAllowed && log.isTraceEnabled()) {
log.trace("didAddressingHeaderExist: headerName=" + headerName);
}
boolean result = false;
if(existingWSAHeaders != null){
result = existingWSAHeaders.contains(headerName);
if (LoggingControl.debugLoggingAllowed && log.isTraceEnabled()) {
log.trace("didAddressingHeaderExist: existingWSAHeaders=" + existingWSAHeaders+" result="+result);
}
}
return result;
}
/**
* Sets a mustUnderstand attribute on all headers that are found with the appropriate
* addressing namespace.
*/
private void processMustUnderstandProperty() {
if (addMustUnderstandAttribute) {
List headers = header.getHeaderBlocksWithNSURI(addressingNamespace);
for (int i = 0, size = headers.size(); i < size; i++) {
SOAPHeaderBlock soapHeaderBlock = (SOAPHeaderBlock)headers.get(i);
soapHeaderBlock.setMustUnderstand(true);
if (LoggingControl.debugLoggingAllowed && log.isTraceEnabled()) {
log.trace(
"processMustUnderstandProperty: Setting mustUnderstand=true on: " +
soapHeaderBlock.getLocalName());
}
}
}
}
private void addRoleToHeader(SOAPHeaderBlock header){
if(addressingRole == null || addressingRole.length()==0){
return;
}
header.setRole(addressingRole);
}
}
}