org.htmlunit.javascript.host.ActiveXObject Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of xlt Show documentation
Show all versions of xlt Show documentation
XLT (Xceptance LoadTest) is an extensive load and performance test tool developed and maintained by Xceptance.
/*
* Copyright (c) 2002-2024 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 org.htmlunit.javascript.host;
import static org.htmlunit.javascript.configuration.SupportedBrowser.IE;
import java.lang.annotation.Annotation;
import java.lang.reflect.Method;
import java.util.Map;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.htmlunit.WebClient;
import org.htmlunit.WebWindow;
import org.htmlunit.activex.javascript.msxml.MSXMLActiveXObjectFactory;
import org.htmlunit.corejs.javascript.Context;
import org.htmlunit.corejs.javascript.Function;
import org.htmlunit.corejs.javascript.Scriptable;
import org.htmlunit.javascript.HtmlUnitScriptable;
import org.htmlunit.javascript.JavaScriptEngine;
import org.htmlunit.javascript.configuration.JsxClass;
import org.htmlunit.javascript.configuration.JsxConstructor;
import org.htmlunit.javascript.configuration.JsxGetter;
import org.htmlunit.javascript.configuration.JsxSetter;
/**
* This is the host object that allows JavaScript to instantiate Java objects via the ActiveXObject
* constructor. This host object enables a person to emulate ActiveXObjects in JavaScript with Java
* objects. See the WebClient class to see how ActiveXObject string parameter specifies
* which Java class is instantiated.
*
* @see org.htmlunit.WebClient
* @author Ben Curren
* @author Ahmed Ashour
* @author Chuck Dumont
* @author Ronald Brill
* @author Frank Danek
*/
@JsxClass(IE)
public class ActiveXObject extends HtmlUnitScriptable {
private static final Log LOG = LogFactory.getLog(ActiveXObject.class);
/**
* The default constructor.
*/
public ActiveXObject() {
}
/**
* This method
*
* - instantiates the MSXML (ActiveX) object if requested (
XMLDOMDocument,
* XMLHTTPRequest, XSLTemplate)
* - searches the map specified in the
WebClient class for the Java object to instantiate based
* on the ActiveXObject constructor String
* - uses
ActiveXObjectImpl to initiate Jacob.
*
*
* @param cx the current context
* @param scope the scope
* @param args the arguments to the ActiveXObject constructor
* @param ctorObj the function object
* @param inNewExpr Is new or not
* @return the java object to allow JavaScript to access
*/
@JsxConstructor
public static Scriptable jsConstructor(final Context cx, final Scriptable scope,
final Object[] args, final Function ctorObj, final boolean inNewExpr) {
if (args.length < 1 || args.length > 2) {
throw JavaScriptEngine.reportRuntimeError(
"ActiveXObject Error: constructor must have one or two String parameters.");
}
if (JavaScriptEngine.isUndefined(args[0])) {
throw JavaScriptEngine.reportRuntimeError("ActiveXObject Error: constructor parameter is undefined.");
}
if (!(args[0] instanceof String)) {
throw JavaScriptEngine.reportRuntimeError("ActiveXObject Error: constructor parameter must be a String.");
}
final String activeXName = (String) args[0];
final WebWindow window = getWindow(ctorObj).getWebWindow();
final MSXMLActiveXObjectFactory factory = window.getWebClient().getMSXMLActiveXObjectFactory();
if (factory.supports(activeXName)) {
final Scriptable scriptable = factory.create(activeXName, window);
if (scriptable != null) {
return scriptable;
}
}
final WebClient webClient = getWindow(ctorObj).getWebWindow().getWebClient();
final Map map = webClient.getActiveXObjectMap();
if (map != null) {
final String xClassString = map.get(activeXName);
if (xClassString != null) {
try {
final Class xClass = Class.forName(xClassString);
final Object object = xClass.newInstance();
return Context.toObject(object, ctorObj);
}
catch (final Exception e) {
throw JavaScriptEngine.reportRuntimeError(
"ActiveXObject Error: failed instantiating class " + xClassString
+ " because " + e.getMessage() + ".");
}
}
}
if (webClient.getOptions().isActiveXNative() && System.getProperty("os.name").contains("Windows")) {
try {
return new ActiveXObjectImpl(activeXName);
}
catch (final Exception e) {
LOG.warn("Error initiating Jacob", e);
}
}
if (LOG.isWarnEnabled()) {
LOG.warn("Automation server can't create object for '" + activeXName + "'.");
}
throw JavaScriptEngine.reportRuntimeError("Automation server can't create object for '" + activeXName + "'.");
}
/**
* Adds a specific property to this object.
* @param scriptable the scriptable
* @param propertyName the property name
* @param isGetter is getter
* @param isSetter is setter
*/
public static void addProperty(final HtmlUnitScriptable scriptable, final String propertyName,
final boolean isGetter, final boolean isSetter) {
final String initialUpper = Character.toUpperCase(propertyName.charAt(0)) + propertyName.substring(1);
String getterName = null;
if (isGetter) {
getterName = "get" + initialUpper;
}
String setterName = null;
if (isSetter) {
setterName = "set" + initialUpper;
}
addProperty(scriptable, propertyName, getterName, setterName);
}
static void addProperty(final HtmlUnitScriptable scriptable, final String propertyName,
final String getterMethodName, final String setterMethodName) {
scriptable.defineProperty(propertyName, null,
getMethod(scriptable.getClass(), getterMethodName, JsxGetter.class),
getMethod(scriptable.getClass(), setterMethodName, JsxSetter.class), PERMANENT);
}
/**
* Gets the first method found of the class with the given name
* and the correct annotation
* @param clazz the class to search on
* @param name the name of the searched method
* @param annotationClass the class of the annotation required
* @return {@code null} if not found
*/
static Method getMethod(final Class clazz,
final String name, final Class annotationClass) {
if (name == null) {
return null;
}
Method foundMethod = null;
int foundByNameOnlyCount = 0;
for (final Method method : clazz.getMethods()) {
if (method.getName().equals(name)) {
if (null != method.getAnnotation(annotationClass)) {
return method;
}
foundByNameOnlyCount++;
foundMethod = method;
}
}
if (foundByNameOnlyCount > 1) {
throw new IllegalArgumentException("Found " + foundByNameOnlyCount + " methods for name '"
+ name + "' in class '" + clazz + "'.");
}
return foundMethod;
}
}