com.gargoylesoftware.htmlunit.html.HtmlApplet Maven / Gradle / Ivy
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XLT (Xceptance LoadTest) is an extensive load and performance test tool developed and maintained by Xceptance.
/*
* Copyright (c) 2002-2021 Gargoyle Software Inc.
*
* 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
* https://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 com.gargoylesoftware.htmlunit.html;
import java.applet.Applet;
import java.io.IOException;
import java.net.URL;
import java.util.Collections;
import java.util.HashMap;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;
import org.apache.commons.lang3.StringUtils;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import com.gargoylesoftware.htmlunit.AppletConfirmHandler;
import com.gargoylesoftware.htmlunit.FailingHttpStatusCodeException;
import com.gargoylesoftware.htmlunit.SgmlPage;
import com.gargoylesoftware.htmlunit.WebClient;
import com.gargoylesoftware.htmlunit.WebRequest;
import com.gargoylesoftware.htmlunit.WebResponse;
import com.gargoylesoftware.htmlunit.html.applets.AppletClassLoader;
import com.gargoylesoftware.htmlunit.html.applets.AppletStubImpl;
import com.gargoylesoftware.htmlunit.javascript.host.Window;
import com.gargoylesoftware.htmlunit.util.UrlUtils;
/**
* Wrapper for the HTML element "applet".
*
* @author Mike Bowler
* @author David K. Taylor
* @author Christian Sell
* @author Ahmed Ashour
* @author Marc Guillemot
* @author Ronald Brill
* @author Frank Danek
*/
public class HtmlApplet extends HtmlElement {
private static final Log LOG = LogFactory.getLog(HtmlApplet.class);
private static final String ARCHIVE = "archive";
private static final String CACHE_ARCHIVE = "cache_archive";
private static final String CODEBASE = "codebase";
/** The HTML tag represented by this element. */
public static final String TAG_NAME = "applet";
private Applet applet_;
private List archiveUrls_;
/**
* Creates a new instance.
*
* @param qualifiedName the qualified name of the element type to instantiate
* @param page the page that contains this element
* @param attributes the initial attributes
*/
HtmlApplet(final String qualifiedName, final SgmlPage page,
final Map attributes) {
super(qualifiedName, page, attributes);
}
/**
* Returns the value of the attribute "codebase". Refer to the
* HTML 4.01
* documentation for details on the use of this attribute.
*
* @return the value of the attribute "codebase" or an empty string if that attribute isn't defined
*/
public final String getCodebaseAttribute() {
return getAttribute(CODEBASE);
}
/**
* Returns the value of the attribute {@code archive}. Refer to the
* HTML 4.01
* documentation for details on the use of this attribute.
*
* @return the value of the attribute {@code archive} or an empty string if that attribute isn't defined
*/
public final String getArchiveAttribute() {
return getAttribute(ARCHIVE);
}
/**
* Returns the value of the attribute "code". Refer to the
* HTML 4.01
* documentation for details on the use of this attribute.
*
* @return the value of the attribute "code" or an empty string if that attribute isn't defined
*/
public final String getCodeAttribute() {
return getAttributeDirect("code");
}
/**
* Returns the value of the attribute {@code object}. Refer to the
* HTML 4.01
* documentation for details on the use of this attribute.
*
* @return the value of the attribute {@code object} or an empty string if that attribute isn't defined
*/
public final String getObjectAttribute() {
return getAttributeDirect("object");
}
/**
* Returns the value of the attribute {@code alt}. Refer to the
* HTML 4.01
* documentation for details on the use of this attribute.
*
* @return the value of the attribute {@code alt} or an empty string if that attribute isn't defined
*/
public final String getAltAttribute() {
return getAttributeDirect("alt");
}
/**
* Returns the value of the attribute {@code name}. Refer to the
* HTML 4.01
* documentation for details on the use of this attribute.
*
* @return the value of the attribute {@code name} or an empty string if that attribute isn't defined
*/
public final String getNameAttribute() {
return getAttributeDirect("name");
}
/**
* Returns the value of the attribute {@code width}. Refer to the
* HTML 4.01
* documentation for details on the use of this attribute.
*
* @return the value of the attribute {@code width} or an empty string if that attribute isn't defined
*/
public final String getWidthAttribute() {
return getAttributeDirect("width");
}
/**
* Returns the value of the attribute {@code height}. Refer to the
* HTML 4.01
* documentation for details on the use of this attribute.
*
* @return the value of the attribute {@code height} or an empty string if that attribute isn't defined
*/
public final String getHeightAttribute() {
return getAttributeDirect("height");
}
/**
* Returns the value of the attribute {@code align}. Refer to the
* HTML 4.01
* documentation for details on the use of this attribute.
*
* @return the value of the attribute {@code align} or an empty string if that attribute isn't defined
*/
public final String getAlignAttribute() {
return getAttributeDirect("align");
}
/**
* Returns the value of the attribute {@code hspace}. Refer to the
* HTML 4.01
* documentation for details on the use of this attribute.
*
* @return the value of the attribute {@code hspace} or an empty string if that attribute isn't defined
*/
public final String getHspaceAttribute() {
return getAttributeDirect("hspace");
}
/**
* Returns the value of the attribute {@code vspace}. Refer to the
* HTML 4.01
* documentation for details on the use of this attribute.
*
* @return the value of the attribute {@code vspace} or an empty string if that attribute isn't defined
*/
public final String getVspaceAttribute() {
return getAttributeDirect("vspace");
}
/**
* Gets the applet referenced by this tag. Instantiates it if necessary.
*
* @return the applet or null, if the installed AppletConfirmHandler
* prohibits this applet
* @throws IOException in case of problem
*/
public Applet getApplet() throws IOException {
setupAppletIfNeeded();
return applet_;
}
/**
* Download the associated content specified in the code attribute.
*
* @throws IOException if an error occurs while downloading the content
*/
@SuppressWarnings("unchecked")
private synchronized void setupAppletIfNeeded() throws IOException {
if (applet_ != null) {
return;
}
final HashMap params = new HashMap<>();
params.put("name", getNameAttribute());
params.put("object", getObjectAttribute());
params.put("align", getAlignAttribute());
params.put("alt", getAltAttribute());
params.put("height", getHeightAttribute());
params.put("hspace", getHspaceAttribute());
params.put("vspace", getVspaceAttribute());
params.put("width", getWidthAttribute());
final DomNodeList paramTags = getElementsByTagName("param");
for (final HtmlElement paramTag : paramTags) {
final HtmlParameter parameter = (HtmlParameter) paramTag;
params.put(parameter.getNameAttribute(), parameter.getValueAttribute());
}
if (StringUtils.isEmpty(params.get(CODEBASE)) && StringUtils.isNotEmpty(getCodebaseAttribute())) {
params.put(CODEBASE, getCodebaseAttribute());
}
final String codebaseProperty = params.get(CODEBASE);
if (StringUtils.isEmpty(params.get(ARCHIVE)) && StringUtils.isNotEmpty(getArchiveAttribute())) {
params.put(ARCHIVE, getArchiveAttribute());
}
final HtmlPage page = (HtmlPage) getPage();
final WebClient webclient = page.getWebClient();
final AppletConfirmHandler handler = webclient.getAppletConfirmHandler();
if (null != handler && !handler.confirm(this)) {
return;
}
String appletClassName = getCodeAttribute();
if (appletClassName.endsWith(".class")) {
appletClassName = appletClassName.substring(0, appletClassName.length() - 6);
}
try (AppletClassLoader appletClassLoader =
new AppletClassLoader((Window) getPage().getEnclosingWindow().getScriptableObject(),
Thread.currentThread().getContextClassLoader())) {
final String documentUrl = page.getUrl().toExternalForm();
String baseUrl = UrlUtils.resolveUrl(documentUrl, ".");
if (StringUtils.isNotEmpty(codebaseProperty)) {
// codebase can be relative to the page
baseUrl = UrlUtils.resolveUrl(baseUrl, codebaseProperty);
}
if (!baseUrl.endsWith("/")) {
baseUrl = baseUrl + "/";
}
// check archive
final List archiveUrls = new LinkedList<>();
String[] archives = StringUtils.split(params.get(ARCHIVE), ',');
if (null != archives) {
for (final String tmpArchive : archives) {
final String tempUrl = UrlUtils.resolveUrl(baseUrl, tmpArchive.trim());
final URL archiveUrl = UrlUtils.toUrlUnsafe(tempUrl);
appletClassLoader.addArchiveToClassPath(archiveUrl);
archiveUrls.add(archiveUrl);
}
}
archives = StringUtils.split(params.get(CACHE_ARCHIVE), ',');
if (null != archives) {
for (final String tmpArchive : archives) {
final String tempUrl = UrlUtils.resolveUrl(baseUrl, tmpArchive.trim());
final URL archiveUrl = UrlUtils.toUrlUnsafe(tempUrl);
appletClassLoader.addArchiveToClassPath(archiveUrl);
archiveUrls.add(archiveUrl);
}
}
archiveUrls_ = Collections.unmodifiableList(archiveUrls);
// no archive attribute, single class
if (archiveUrls_.isEmpty()) {
final String tempUrl = UrlUtils.resolveUrl(baseUrl, getCodeAttribute());
final URL classUrl = UrlUtils.toUrlUnsafe(tempUrl);
final WebResponse response = webclient.loadWebResponse(new WebRequest(classUrl));
try {
webclient.throwFailingHttpStatusCodeExceptionIfNecessary(response);
appletClassLoader.addClassToClassPath(appletClassName, response);
}
catch (final FailingHttpStatusCodeException e) {
// that is what the browser does, the applet only fails, if
// the main class is not loadable
LOG.error(e.getMessage(), e);
}
}
try {
final Class