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/*
* Copyright (c) 1997, 2020 Oracle and/or its affiliates. All rights reserved.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Distribution License v. 1.0, which is available at
* http://www.eclipse.org/org/documents/edl-v10.php.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
package com.sun.tools.ws.wsdl.parser;
import com.sun.istack.NotNull;
import com.sun.istack.Nullable;
import com.sun.istack.SAXParseException2;
import com.sun.tools.ws.resources.WsdlMessages;
import com.sun.tools.ws.wscompile.ErrorReceiver;
import com.sun.tools.ws.wscompile.WsimportOptions;
import com.sun.tools.ws.wsdl.document.jaxws.JAXWSBindingsConstants;
import com.sun.tools.xjc.util.DOMUtils;
import org.glassfish.jaxb.core.v2.util.EditDistance;
import com.sun.xml.ws.util.DOMUtil;
import com.sun.xml.ws.util.JAXWSUtils;
import com.sun.xml.ws.util.xml.XmlUtil;
import org.w3c.dom.*;
import org.xml.sax.SAXParseException;
import javax.xml.namespace.NamespaceContext;
import javax.xml.xpath.XPath;
import javax.xml.xpath.XPathConstants;
import javax.xml.xpath.XPathExpressionException;
import javax.xml.xpath.XPathFactory;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.ArrayList;
import java.util.HashSet;
import java.util.Iterator;
import java.util.Set;
/**
* Internalizes external binding declarations.
*
* @author Vivek Pandey
*/
public class Internalizer {
private final XPath xpath = xpf.get().newXPath();
private final DOMForest forest;
private final ErrorReceiver errorReceiver;
public Internalizer(DOMForest forest, WsimportOptions options, ErrorReceiver errorReceiver) {
this.forest = forest;
this.errorReceiver = errorReceiver;
}
public void transform() {
for (Element jaxwsBinding : forest.outerMostBindings) {
internalize(jaxwsBinding, jaxwsBinding);
}
}
private static final ContextClassloaderLocal xpf = new ContextClassloaderLocal() {
@Override
protected XPathFactory initialValue() throws Exception {
return XmlUtil.newXPathFactory(true);
}
};
/**
* Validates attributes of a <JAXWS:bindings> element.
*/
private void validate(Element bindings) {
NamedNodeMap atts = bindings.getAttributes();
for (int i = 0; i < atts.getLength(); i++) {
Attr a = (Attr) atts.item(i);
if (a.getNamespaceURI() != null) {
continue; // all foreign namespace OK.
}
if (a.getLocalName().equals("node")) {
continue;
}
if (a.getLocalName().equals("wsdlLocation")) {
continue;
}
// TODO: flag error for this undefined attribute
}
}
private void internalize(Element bindings, Node inheritedTarget) {
// start by the inherited target
Node target = inheritedTarget;
validate(bindings); // validate this node
// look for @wsdlLocation
if (isTopLevelBinding(bindings)) {
String wsdlLocation;
if (bindings.getAttributeNode("wsdlLocation") != null) {
wsdlLocation = bindings.getAttribute("wsdlLocation");
try {
// absolutize this URI.
// TODO: use the URI class
// TODO: honor xml:base
wsdlLocation = new URL(new URL(forest.getSystemId(bindings.getOwnerDocument())),
wsdlLocation).toExternalForm();
} catch (MalformedURLException e) {
wsdlLocation = JAXWSUtils.absolutize(JAXWSUtils.getFileOrURLName(wsdlLocation));
}
} else {
//the node does not have
wsdlLocation = forest.getFirstRootDocument();
}
target = forest.get(wsdlLocation);
if (target == null) {
reportError(bindings, WsdlMessages.INTERNALIZER_INCORRECT_SCHEMA_REFERENCE(wsdlLocation, EditDistance.findNearest(wsdlLocation, forest.listSystemIDs())));
return; // abort processing this
}
}
//if the target node is xs:schema, declare the jaxb version on it as latter on it will be
//required by the inlined schema bindings
Element element = DOMUtil.getFirstElementChild(target);
if (element != null && element.getNamespaceURI().equals(Constants.NS_WSDL) && element.getLocalName().equals("definitions")) {
//get all schema elements
Element type = DOMUtils.getFirstChildElement(element, Constants.NS_WSDL, "types");
if (type != null) {
for (Element schemaElement : DOMUtils.getChildElements(type, Constants.NS_XSD, "schema")) {
if (!schemaElement.hasAttributeNS(Constants.NS_XMLNS, "jaxb")) {
schemaElement.setAttributeNS(Constants.NS_XMLNS, "xmlns:jaxb", JAXWSBindingsConstants.NS_JAXB_BINDINGS);
}
//add jaxb:bindings version info. Lets put it to 1.0, may need to change latter
if (!schemaElement.hasAttributeNS(JAXWSBindingsConstants.NS_JAXB_BINDINGS, "version")) {
schemaElement.setAttributeNS(JAXWSBindingsConstants.NS_JAXB_BINDINGS, "jaxb:version", JAXWSBindingsConstants.JAXB_BINDING_VERSION);
}
}
}
}
NodeList targetNodes = null;
boolean hasNode = true;
boolean isToplevelBinding = isTopLevelBinding(bindings);
if ((isJAXWSBindings(bindings) || isJAXBBindings(bindings)) && bindings.getAttributeNode("node") != null) {
targetNodes = evaluateXPathMultiNode(bindings, target, bindings.getAttribute("node"), new NamespaceContextImpl(bindings));
} else
if (isJAXWSBindings(bindings) && (bindings.getAttributeNode("node") == null) && !isToplevelBinding) {
hasNode = false;
} else
if (isGlobalBinding(bindings) && !isWSDLDefinition(target) && isTopLevelBinding(bindings.getParentNode())) {
targetNodes = getWSDLDefintionNode(bindings, target);
}
//if target is null or empty it means the xpath evaluation has some problem,
// just return
if (targetNodes == null && hasNode && !isToplevelBinding) {
return;
}
if (hasNode) {
if (targetNodes != null) {
for (int i = 0; i < targetNodes.getLength(); i++) {
insertBinding(bindings, targetNodes.item(i));
// look for child and process them recursively
Element[] children = getChildElements(bindings);
for (Element child : children) {
if ("bindings".equals(child.getLocalName())) {
internalize(child, targetNodes.item(i));
}
}
}
}
}
if (targetNodes == null) {
// look for child and process them recursively
Element[] children = getChildElements(bindings);
for (Element child : children) {
internalize(child, target);
}
}
}
/**
* Moves JAXWS customizations under their respective target nodes.
*/
private void insertBinding(@NotNull Element bindings, @NotNull Node target) {
if ("bindings".equals(bindings.getLocalName())) {
Element[] children = DOMUtils.getChildElements(bindings);
for (Element item : children) {
if ("bindings".equals(item.getLocalName())) {
//done
} else {
moveUnder(item, (Element) target);
}
}
} else {
moveUnder(bindings, (Element) target);
}
}
private NodeList getWSDLDefintionNode(Node bindings, Node target) {
return evaluateXPathMultiNode(bindings, target, "wsdl:definitions",
new NamespaceContext() {
@Override
public String getNamespaceURI(String prefix) {
return "http://schemas.xmlsoap.org/wsdl/";
}
@Override
public String getPrefix(String nsURI) {
throw new UnsupportedOperationException();
}
@Override
public Iterator getPrefixes(String namespaceURI) {
throw new UnsupportedOperationException();
}
});
}
private boolean isWSDLDefinition(Node target) {
if (target == null) {
return false;
}
String localName = target.getLocalName();
String nsURI = target.getNamespaceURI();
return fixNull(localName).equals("definitions") && fixNull(nsURI).equals("http://schemas.xmlsoap.org/wsdl/");
}
private boolean isTopLevelBinding(Node node) {
return node.getOwnerDocument().getDocumentElement() == node;
}
private boolean isJAXWSBindings(Node bindings) {
return (bindings.getNamespaceURI().equals(JAXWSBindingsConstants.NS_JAXWS_BINDINGS) && bindings.getLocalName().equals("bindings"));
}
private boolean isJAXBBindings(Node bindings) {
return (bindings.getNamespaceURI().equals(JAXWSBindingsConstants.NS_JAXB_BINDINGS) && bindings.getLocalName().equals("bindings"));
}
private boolean isGlobalBinding(Node bindings) {
if (bindings.getNamespaceURI() == null) {
errorReceiver.warning(forest.locatorTable.getStartLocation((Element) bindings), WsdlMessages.INVALID_CUSTOMIZATION_NAMESPACE(bindings.getLocalName()));
return false;
}
return (bindings.getNamespaceURI().equals(JAXWSBindingsConstants.NS_JAXWS_BINDINGS) &&
(bindings.getLocalName().equals("package") ||
bindings.getLocalName().equals("enableAsyncMapping") ||
bindings.getLocalName().equals("enableAdditionalSOAPHeaderMapping") ||
bindings.getLocalName().equals("enableWrapperStyle") ||
bindings.getLocalName().equals("enableMIMEContent")));
}
private static Element[] getChildElements(Element parent) {
ArrayList a = new ArrayList();
NodeList children = parent.getChildNodes();
for (int i = 0; i < children.getLength(); i++) {
Node item = children.item(i);
if (!(item instanceof Element)) {
continue;
}
if (JAXWSBindingsConstants.NS_JAXWS_BINDINGS.equals(item.getNamespaceURI()) ||
JAXWSBindingsConstants.NS_JAXB_BINDINGS.equals(item.getNamespaceURI())) {
a.add((Element) item);
}
}
return a.toArray(new Element[a.size()]);
}
private NodeList evaluateXPathMultiNode(Node bindings, Node target, String expression, NamespaceContext namespaceContext) {
NodeList nlst;
try {
xpath.setNamespaceContext(namespaceContext);
nlst = (NodeList) xpath.evaluate(expression, target, XPathConstants.NODESET);
} catch (XPathExpressionException e) {
reportError((Element) bindings, WsdlMessages.INTERNALIZER_X_PATH_EVALUATION_ERROR(e.getMessage()), e);
return null; // abort processing this
}
if (nlst.getLength() == 0) {
reportError((Element) bindings, WsdlMessages.INTERNALIZER_X_PATH_EVALUATES_TO_NO_TARGET(expression));
return null; // abort
}
return nlst;
}
private boolean isJAXBBindingElement(Element e) {
return fixNull(e.getNamespaceURI()).equals(JAXWSBindingsConstants.NS_JAXB_BINDINGS);
}
private boolean isJAXWSBindingElement(Element e) {
return fixNull(e.getNamespaceURI()).equals(JAXWSBindingsConstants.NS_JAXWS_BINDINGS);
}
/**
* Moves the "decl" node under the "target" node.
*
* @param decl A JAXWS customization element (e.g., <JAXWS:class>)
* @param target XML wsdl element under which the declaration should move.
* For example, <xs:element>
*/
private void moveUnder(Element decl, Element target) {
//if there is @node on decl and has a child element jaxb:bindings, move it under the target
//Element jaxb = getJAXBBindingElement(decl);
if (isJAXBBindingElement(decl)) {
//add jaxb namespace declaration
if (!target.hasAttributeNS(Constants.NS_XMLNS, "jaxb")) {
target.setAttributeNS(Constants.NS_XMLNS, "xmlns:jaxb", JAXWSBindingsConstants.NS_JAXB_BINDINGS);
}
//add jaxb:bindings version info. Lets put it to 1.0, may need to change latter
if (!target.hasAttributeNS(JAXWSBindingsConstants.NS_JAXB_BINDINGS, "version")) {
target.setAttributeNS(JAXWSBindingsConstants.NS_JAXB_BINDINGS, "jaxb:version", JAXWSBindingsConstants.JAXB_BINDING_VERSION);
}
// HACK: allow XJC extension all the time. This allows people to specify
// the in the external bindings. Otherwise users lack the ability
// to specify jaxb:extensionBindingPrefixes, so it won't work.
//
// the current workaround is still problematic in the sense that
// it can't support user-defined extensions. This needs more careful thought.
//JAXB doesn't allow writing jaxb:extensionbindingPrefix anywhere other than root element so lets write only on
if (target.getLocalName().equals("schema") && target.getNamespaceURI().equals(Constants.NS_XSD) && !target.hasAttributeNS(JAXWSBindingsConstants.NS_JAXB_BINDINGS, "extensionBindingPrefixes")) {
target.setAttributeNS(JAXWSBindingsConstants.NS_JAXB_BINDINGS, "jaxb:extensionBindingPrefixes", "xjc");
target.setAttributeNS(Constants.NS_XMLNS, "xmlns:xjc", JAXWSBindingsConstants.NS_XJC_BINDINGS);
}
//insert xs:annotation/xs:appinfo where in jaxb:binding will be put
target = refineSchemaTarget(target);
copyInscopeNSAttributes(decl);
} else if (isJAXWSBindingElement(decl)) {
//add jaxb namespace declaration
if (!target.hasAttributeNS(Constants.NS_XMLNS, "JAXWS")) {
target.setAttributeNS(Constants.NS_XMLNS, "xmlns:JAXWS", JAXWSBindingsConstants.NS_JAXWS_BINDINGS);
}
//insert xs:annotation/xs:appinfo where in jaxb:binding will be put
target = refineWSDLTarget(target);
copyInscopeNSAttributes(decl);
} else {
return;
}
// finally move the declaration to the target node.
if (target.getOwnerDocument() != decl.getOwnerDocument()) {
// if they belong to different DOM documents, we need to clone them
decl = (Element) target.getOwnerDocument().importNode(decl, true);
}
target.appendChild(decl);
}
/**
* Copy in-scope namespace declarations of the decl node
* to the decl node itself so that this move won't change
* the in-scope namespace bindings.
*/
private void copyInscopeNSAttributes(Element e) {
Element p = e;
Set inscopes = new HashSet();
while (true) {
NamedNodeMap atts = p.getAttributes();
for (int i = 0; i < atts.getLength(); i++) {
Attr a = (Attr) atts.item(i);
if (Constants.NS_XMLNS.equals(a.getNamespaceURI())) {
String prefix;
if (a.getName().indexOf(':') == -1) {
prefix = "";
} else {
prefix = a.getLocalName();
}
if (inscopes.add(prefix) && p != e) {
// if this is the first time we see this namespace bindings,
// copy the declaration.
// if p==decl, there's no need to. Note that
// we want to add prefix to inscopes even if p==Decl
e.setAttributeNodeNS((Attr) a.cloneNode(true));
}
}
}
if (p.getParentNode() instanceof Document) {
break;
}
p = (Element) p.getParentNode();
}
if (!inscopes.contains("")) {
// if the default namespace was undeclared in the context of decl,
// it must be explicitly set to "" since the new environment might
// have a different default namespace URI.
e.setAttributeNS(Constants.NS_XMLNS, "xmlns", "");
}
}
public Element refineSchemaTarget(Element target) {
// look for existing xs:annotation
Element annotation = DOMUtils.getFirstChildElement(target, Constants.NS_XSD, "annotation");
if (annotation == null) {
// none exists. need to make one
annotation = insertXMLSchemaElement(target, "annotation");
}
// then look for appinfo
Element appinfo = DOMUtils.getFirstChildElement(annotation, Constants.NS_XSD, "appinfo");
if (appinfo == null) {
// none exists. need to make one
appinfo = insertXMLSchemaElement(annotation, "appinfo");
}
return appinfo;
}
public Element refineWSDLTarget(Element target) {
// look for existing xs:annotation
Element JAXWSBindings = DOMUtils.getFirstChildElement(target, JAXWSBindingsConstants.NS_JAXWS_BINDINGS, "bindings");
if (JAXWSBindings == null) {
// none exists. need to make one
JAXWSBindings = insertJAXWSBindingsElement(target, "bindings");
}
return JAXWSBindings;
}
/**
* Creates a new XML Schema element of the given local name
* and insert it as the first child of the given parent node.
*
* @return Newly create element.
*/
private Element insertXMLSchemaElement(Element parent, String localName) {
// use the same prefix as the parent node to avoid modifying
// the namespace binding.
String qname = parent.getTagName();
int idx = qname.indexOf(':');
if (idx == -1) {
qname = localName;
} else {
qname = qname.substring(0, idx + 1) + localName;
}
Element child = parent.getOwnerDocument().createElementNS(Constants.NS_XSD, qname);
NodeList children = parent.getChildNodes();
if (children.getLength() == 0) {
parent.appendChild(child);
} else {
parent.insertBefore(child, children.item(0));
}
return child;
}
private Element insertJAXWSBindingsElement(Element parent, String localName) {
String qname = "JAXWS:" + localName;
Element child = parent.getOwnerDocument().createElementNS(JAXWSBindingsConstants.NS_JAXWS_BINDINGS, qname);
NodeList children = parent.getChildNodes();
if (children.getLength() == 0) {
parent.appendChild(child);
} else {
parent.insertBefore(child, children.item(0));
}
return child;
}
@NotNull
static String fixNull(@Nullable String s) {
if (s == null) {
return "";
} else {
return s;
}
}
private void reportError(Element errorSource, String formattedMsg) {
reportError(errorSource, formattedMsg, null);
}
private void reportError(Element errorSource,
String formattedMsg, Exception nestedException) {
SAXParseException e = new SAXParseException2(formattedMsg,
forest.locatorTable.getStartLocation(errorSource),
nestedException);
errorReceiver.error(e);
}
}
