org.apache.axis.transport.http.QSWSDLHandler Maven / Gradle / Ivy
/*
* Copyright 2001-2004 The Apache Software Foundation.
*
* 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.
*/
package org.apache.axis.transport.http;
import org.apache.axis.AxisFault;
import org.apache.axis.Constants;
import org.apache.axis.MessageContext;
import org.apache.axis.ConfigurationException;
import org.apache.axis.description.ServiceDesc;
import org.apache.axis.server.AxisServer;
import org.apache.axis.utils.Messages;
import org.apache.axis.utils.XMLUtils;
import org.w3c.dom.Document;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import org.w3c.dom.Element;
import javax.servlet.http.HttpServletResponse;
import java.io.PrintWriter;
import java.net.HttpURLConnection;
import java.util.Iterator;
import java.util.Set;
import java.util.HashSet;
/**
* The QSWSDLHandler class is a handler which provides an AXIS service's WSDL
* document when the query string "wsdl" (ignoring case) is encountered in an
* AXIS servlet invocation.
*
* @author Curtiss Howard (code mostly from AxisServlet class)
* @author Doug Davis ([email protected])
* @author Steve Loughran
* @author Ian P. Springer, Sal Campana
*/
public class QSWSDLHandler extends AbstractQueryStringHandler {
/**
* Performs the action associated with this particular query string handler.
*
* @param msgContext a MessageContext object containing message context
* information for this query string handler.
* @throws AxisFault if an error occurs
*/
public void invoke(MessageContext msgContext) throws AxisFault {
// Obtain objects relevant to the task at hand from the provided
// MessageContext's bag.
configureFromContext(msgContext);
AxisServer engine = (AxisServer) msgContext.getProperty
(HTTPConstants.PLUGIN_ENGINE);
PrintWriter writer = (PrintWriter) msgContext.getProperty
(HTTPConstants.PLUGIN_WRITER);
HttpServletResponse response = (HttpServletResponse)
msgContext.getProperty(HTTPConstants.MC_HTTP_SERVLETRESPONSE);
try {
engine.generateWSDL(msgContext);
Document wsdlDoc = (Document) msgContext.getProperty("WSDL");
if (wsdlDoc != null) {
try {
updateSoapAddressLocationURLs(wsdlDoc, msgContext);
} catch (RuntimeException re) {
log.warn(
"Failed to update soap:address location URL(s) in WSDL.",
re);
}
response.setContentType(
"text/xml; charset=" +
XMLUtils.getEncoding().toLowerCase());
reportWSDL(wsdlDoc, writer);
} else {
if (log.isDebugEnabled()) {
log.debug("processWsdlRequest: failed to create WSDL");
}
reportNoWSDL(response, writer, "noWSDL02", null);
}
} catch (AxisFault axisFault) {
//the no-service fault is mapped to a no-wsdl error
if (axisFault.getFaultCode().equals
(Constants.QNAME_NO_SERVICE_FAULT_CODE)) {
//which we log
processAxisFault(axisFault);
//then report under a 404 error
response.setStatus(HttpURLConnection.HTTP_NOT_FOUND);
reportNoWSDL(response, writer, "noWSDL01", axisFault);
} else {
//all other faults get thrown
throw axisFault;
}
}
}
/**
* Report WSDL.
*
* @param doc
* @param writer
*/
public void reportWSDL(Document doc, PrintWriter writer) {
XMLUtils.PrettyDocumentToWriter(doc, writer);
}
/**
* Report that we have no WSDL.
*
* @param res
* @param writer
* @param moreDetailCode optional name of a message to provide more detail
* @param axisFault optional fault string, for extra info at debug time only
*/
public void reportNoWSDL(HttpServletResponse res, PrintWriter writer,
String moreDetailCode, AxisFault axisFault) {
res.setStatus(HttpURLConnection.HTTP_NOT_FOUND);
res.setContentType("text/html");
writer.println("" + Messages.getMessage("error00") + "
");
writer.println("" + Messages.getMessage("noWSDL00") + "
");
if (moreDetailCode != null) {
writer.println("" + Messages.getMessage(moreDetailCode)
+ "
");
}
if (axisFault != null && isDevelopment()) {
//only dev systems give fault dumps
writeFault(writer, axisFault);
}
}
/**
* Updates the soap:address locations for all ports in the WSDL using the URL from the request as
* the base portion for the updated locations, ensuring the WSDL returned to the client contains
* the correct location URL.
*
* @param wsdlDoc the WSDL as a DOM document
* @param msgContext the current Axis JAX-RPC message context
* @throws AxisFault if we fail to obtain the list of deployed service names from the server config
*/
protected void updateSoapAddressLocationURLs(Document wsdlDoc,
MessageContext msgContext)
throws AxisFault {
Set deployedServiceNames;
try {
deployedServiceNames = getDeployedServiceNames(msgContext);
}
catch (ConfigurationException ce) {
throw new AxisFault("Failed to determine deployed service names.", ce);
}
NodeList wsdlPorts = wsdlDoc.getDocumentElement().getElementsByTagNameNS(Constants.NS_URI_WSDL11, "port");
if (wsdlPorts != null) {
String endpointURL = getEndpointURL(msgContext);
String baseEndpointURL = endpointURL.substring(0, endpointURL.lastIndexOf("/") + 1);
for (int i = 0; i < wsdlPorts.getLength(); i++) {
Element portElem = (Element) wsdlPorts.item(i);
Node portNameAttrib = portElem.getAttributes().getNamedItem("name");
if (portNameAttrib == null) {
continue;
}
String portName = portNameAttrib.getNodeValue();
NodeList soapAddresses = portElem.getElementsByTagNameNS(Constants.URI_WSDL11_SOAP, "address");
if (soapAddresses == null || soapAddresses.getLength() == 0) {
soapAddresses = portElem.getElementsByTagNameNS(Constants.URI_WSDL12_SOAP, "address");
}
if (soapAddresses != null) {
for (int j = 0; j < soapAddresses.getLength(); j++) {
Element addressElem = (Element) soapAddresses.item(j);
Node addressLocationAttrib = addressElem.getAttributes().getNamedItem("location");
if ( addressLocationAttrib == null )
{
continue;
}
String addressLocation = addressLocationAttrib.getNodeValue();
String addressServiceName = addressLocation.substring(addressLocation.lastIndexOf("/") + 1);
String newServiceName = getNewServiceName(deployedServiceNames, addressServiceName, portName);
if (newServiceName != null) {
String newAddressLocation = baseEndpointURL + newServiceName;
addressLocationAttrib.setNodeValue(newAddressLocation);
log.debug("Setting soap:address location values in WSDL for port " +
portName +
" to: " +
newAddressLocation);
}
else
{
log.debug("For WSDL port: " + portName + ", unable to match port name or the last component of " +
"the SOAP address url with a " +
"service name deployed in server-config.wsdd. Leaving SOAP address: " +
addressLocation + " unmodified.");
}
}
}
}
}
}
private String getNewServiceName(Set deployedServiceNames, String currentServiceEndpointName, String portName) {
String endpointName = null;
if (deployedServiceNames.contains(currentServiceEndpointName)) {
endpointName = currentServiceEndpointName;
}
else if (deployedServiceNames.contains(portName)) {
endpointName = portName;
}
return endpointName;
}
private Set getDeployedServiceNames(MessageContext msgContext) throws ConfigurationException {
Set serviceNames = new HashSet();
Iterator deployedServicesIter = msgContext.getAxisEngine().getConfig().getDeployedServices();
while (deployedServicesIter.hasNext()) {
ServiceDesc serviceDesc = (ServiceDesc) deployedServicesIter.next();
serviceNames.add(serviceDesc.getName());
}
return serviceNames;
}
/**
* Returns the endpoint URL that should be used in the returned WSDL.
*
* @param msgContext the current Axis JAX-RPC message context
* @return the endpoint URL that should be used in the returned WSDL
* @throws AxisFault if we fail to obtain the {@link org.apache.axis.description.ServiceDesc} for this service
*/
protected String getEndpointURL(MessageContext msgContext)
throws AxisFault {
// First see if a location URL is explicitly set in the MC.
String locationUrl = msgContext.getStrProp(
MessageContext.WSDLGEN_SERV_LOC_URL);
if (locationUrl == null) {
// If nothing, try what's explicitly set in the ServiceDesc.
locationUrl =
msgContext.getService().getInitializedServiceDesc(
msgContext)
.getEndpointURL();
}
if (locationUrl == null) {
// If nothing, use the actual transport URL.
locationUrl = msgContext.getStrProp(MessageContext.TRANS_URL);
}
return locationUrl;
}
}
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